1. A coin wrapping machine is characterized by comprising:

a plurality of rollers provided so as to surround a coin bundle arrangement space in which coins are arranged, the rollers having a rotation axis extending in a longitudinal direction of the coin bundle arrangement space;

a roller actuator that rotates the plurality of rollers about the rotation axis;

a medium supply unit configured to supply the packing medium between the plurality of rollers and the stacked coin arrangement space;

a pair of pressing claws provided so as to be capable of approaching each other from both sides in the longitudinal direction of the stacked coin arrangement space;

a pressing actuator that moves the pair of pressing claws so as to approach each other;

a control device that controls the roller actuator and the pressing actuator;

the control device is provided with:

an operation mode determination unit that determines an operation mode that defines a relationship between a rotation speed of the roller actuator and a movement speed of the pressing actuator;

and a signal output unit that outputs a control signal based on the determined operation mode to at least one of the roller actuator and the pressing actuator.

2. The coin wrapping machine of claim 1,

the operation pattern determination unit determines the operation pattern based on a material of the packaging medium.

3. The coin wrapping machine of claim 2,

the action modes include: a first operation mode in which the pressing actuator moves by a first movement amount with respect to one rotation of the roller actuator; and a second operation mode in which the pressing actuator moves by a second movement amount smaller than the first movement amount with respect to one rotation of the roller actuator.

4. The coin wrapping machine of claim 3,

the operation mode determining unit determines the operation mode as the first operation mode when the packaging medium is made of paper, and determines the operation mode as the second operation mode when the packaging medium is made of resin.

5. The coin wrapping machine of any one of claims 2 to 4,

the coin wrapping machine is provided with a sensor for measuring a physical quantity of the wrapping medium,

the control device includes a material determination unit that determines a material of the packaging medium based on a measurement result of the sensor.

6. The coin wrapping machine of claim 5,

the coin wrapping machine is provided with a support table for rotatably supporting the wrapping medium,

the sensor is an electrostatic capacitance sensor provided on the support table.

7. A control method of a coin packaging machine,

the coin wrapping machine is provided with:

a plurality of rollers provided so as to surround a coin bundle arrangement space in which coins are arranged, the rollers having a rotation axis extending in a longitudinal direction of the coin bundle arrangement space;

a roller actuator that rotates the plurality of rollers about the rotation axis;

a medium supply unit configured to supply a packing medium between the plurality of rollers and the stacked coin arrangement space;

a pair of pressing claws provided so as to be capable of approaching each other from both sides in the longitudinal direction of the stacked coin arrangement space;

a pressing actuator that moves the pair of pressing claws so as to approach each other;

the control method of the coin wrapping machine is characterized in that,

the control method of the coin wrapping machine determines an action pattern that specifies a relationship between a rotation speed of the roller actuator and a moving speed of the pressing actuator,

the control method of the coin wrapping machine outputs a control signal based on the determined operation mode to at least one of the roller actuator and the pressing actuator.

Background

Patent document 1 discloses a technique relating to a coin wrapping machine that wraps a bundle of coins, which is formed by stacking a predetermined number of loose coins in a thickness direction, by wrapping the outer circumference of the bundle of coins with a wrapping medium.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 6173101

The coin wrapping machine wraps the wrapping medium around the outer periphery of the stacked coins, and then causes the portions of the wrapping medium protruding from the upper and lower ends of the stacked coins to be caught inside the wrapping medium, thereby pressing the stacked coins. The coin wrapping machine presses the stack of coins wound with the wrapping medium by applying a force to the pressing claws in a direction approaching each other while rotating the stack of coins.

However, the packaging medium for packaging the stacked coins includes various materials such as paper and resin. Since the characteristics such as rigidity are different depending on the material of the wrapping medium, when the same setting as that of the paper medium wrapping is applied to the coin wrapping machine and the stacked coins are wrapped with the resin medium, there is a possibility that a wrapping failure such as buckling of the resin medium occurs.

Disclosure of Invention

An object of the present disclosure is to provide a coin wrapping machine and a control method of the coin wrapping machine capable of setting a pressing condition of a stack of coins according to a material of a wrapping medium.

According to one aspect, a coin wrapping machine includes: a plurality of rollers provided so as to surround a cylindrical coin bundle arrangement space and having a rotation axis extending in a longitudinal direction of the coin bundle arrangement space; a roller actuator that rotates the plurality of rollers about the rotation axis; a feeding mechanism that feeds the packing medium between the plurality of rollers and the stacked coin arrangement space; a pair of pressing claws provided so as to be capable of approaching each other from both sides in the longitudinal direction of the stacked coin arrangement space; a pressing actuator that moves the pair of pressing claws so as to approach each other; a control device that controls the roller actuator and the pressing actuator; the control device is provided with: an operation mode determination unit that determines an operation mode that defines a relationship between a rotation speed of the roller actuator and a movement speed of the pressing actuator; and a signal output unit that outputs a control signal based on the determined operation mode to at least one of the roller actuator and the pressing actuator.

According to the above aspect, the coin wrapping machine can set the pressing condition of the stacked coins according to the material of the wrapping medium by changing the operation mode.

Drawings

Fig. 1 is an external view of a coin wrapping machine according to a first embodiment.

Fig. 2 is a schematic view showing an internal configuration of the coin wrapping machine of the first embodiment.

Fig. 3 is a perspective view showing the structure of the pressing portion of the first embodiment.

Fig. 4 is a plan view showing the structure of the medium supplying unit according to the first embodiment.

Fig. 5 is a diagram showing a relationship between a measurement value of the electrostatic capacity sensor and the amount and material of the roll of packaging medium in the first embodiment.

Fig. 6 is a schematic block diagram showing the configuration of the control device of the first embodiment.

Fig. 7 is a flowchart showing a packing medium roll monitoring process of the coin wrapping machine of the first embodiment.

Fig. 8 is a flowchart showing a process of wrapping the stacked coins in the coin wrapping machine of the first embodiment.

Fig. 9 is a timing chart showing an operation in the process of wrapping the stacked coins in the coin wrapping machine according to the first embodiment.

Fig. 10 is a flowchart showing a process of wrapping the stacked coins in the coin wrapping machine of the second embodiment.

Fig. 11 is a timing chart showing an operation of the coin wrapping machine according to the second embodiment in the process of wrapping the stacked coins.

Fig. 12 is a plan view showing the structure of the medium supplying unit according to the third embodiment.

Description of the reference numerals

1 coin packaging machine

30 medium supply part

313 electrostatic capacitance sensor

50 packing part

52 packing roller

53 packing motor

54 pressing part

547 cam mechanism

548 cam motor

70 control device

71 processor

711 measurement value acquisition unit

712 is provided with a detection part

713 material specifying part

714 action mode determining part

715 signal output unit

716 remaining amount determination unit

717 display control unit

73 main memory

731 measurement value storage unit

732 material storage part

S packaging medium

S1 roll of packaging media

C piled coins

Detailed Description

< first embodiment >

[ Structure of coin wrapping machine ]

Hereinafter, embodiments will be described in detail with reference to the drawings.

Fig. 1 is an external view of a coin wrapping machine according to a first embodiment.

The coin wrapping machine 1 stacks a predetermined number of loose coins and wraps the stacked coins C thus formed with the wrapping medium S into a bar shape.

The coin wrapping machine 1 includes a slot 2 and a touch sensor panel 4. The inlet 2 is provided at an upper position of the coin wrapping machine 1. The input port 2 receives loose coins to be packaged and processed by an operator. The inlet 2 is provided with a cover 3 for opening and closing the inlet 2. The cover 3 is configured to be manually openable and closable.

The touch sensor panel 4 receives input of various settings such as denomination designation information during the packaging operation and input operation for starting and stopping the packaging process. The touch sensor panel 4 displays the result of counting coins in the coin wrapping machine 1, guidance and setting contents when various settings such as wrapping operation and print contents are performed. Touch sensor panel 4 is provided in the vicinity of input port 2.

Fig. 2 is a schematic view showing an internal configuration of the coin wrapping machine of the first embodiment.

The coin wrapping machine 1 includes a stacking unit 10, a medium supplying unit 30, and a wrapping unit 50.

The stacking portion 10 stacks the scattered coins collectively input through the input port 2 in the opened state. Hereinafter, the coins stacked together in the stacking portion 10 are referred to as stacked coins C. The medium supply unit 30 supplies the packing medium S to the packing unit 50. The wrapping unit 50 wraps the stacked coins C stacked in the stacking unit 10 with the wrapping medium S supplied from the medium supply unit 30.

[ Structure of the piled section ]

The stacking unit 10 includes a rotary hopper 11, a coin path 12, a pair of stacking rollers 13, and a horizontal shutter 14.

The rotary hopper 11 receives the scattered coins which are collectively input through the input port 2. The rotary hopper 11 sends out coins one by centrifugal force generated by rotation. The coin path 12 is a path for conveying coins fed from the rotary hopper 11 to between the pair of stacking rollers 13.

A conveyor belt 121 for transferring coins one by one is provided in the coin passage 12. An unillustrated discriminating unit is provided midway in the coin path 12 to discriminate, as necessary, the authenticity, denomination, and the like of the coin fed through the coin path 12. Here, the coin path 12 is provided with an unillustrated discharge hole, and coins that are not discriminated as genuine coins fall through the discharge hole. That is, the coin path 12 feeds only genuine coins between the pair of stacking rollers 13.

A pair of stacking rollers 13 stack the coins passing through the coin passage 12. Each of the stacking rollers 13 has a spiral projection 131, and each of the stacking rollers 1 is intermittently rotationally driven in mutually opposite directions in synchronization with the supply of coins from the coin passage 12 in a state where the height positions of the respective projections 131 are matched. Thus, the coins fed through the coin passage 12 are placed on the projections 131 of the pair of stacking rollers 13 and lowered one step, and the coins fed thereafter are stacked above the previous coins, and as a result, a plurality of coins are stacked in a state stacked in the up-down direction between these stacking rollers 13 to form a stacked coin C.

A horizontal shutter 14 is provided at a position below the pair of stacking rollers 13. The horizontal gate 14 places a predetermined number of the stacked coins C stacked on the upper surface of the pair of stacking rollers 13. That is, the horizontal shutter 14 also serves as a bottom wall on which the stacked coins C are placed. The horizontal shutter 14 is configured to be openable and closable. When the horizontal shutter 14 is opened, the stacked coins C placed on the upper surface of the horizontal shutter 14 are transferred to the lower packing unit 50.

[ Structure of packaging part ]

The packing unit 50 includes a support rod 51, three packing rollers 52, a packing motor 53, and a pressing unit 54.

The support rod 51 supports the bunch of coins C transferred from the horizontal shutter 14 from below. That is, a substantially cylindrical stacked coin arrangement space for arranging the stacked coins C is provided above the support bar 51. The three packing rollers 52 are arranged in the vertical direction so as to surround the coin bundle arrangement space. The three packing rollers 52 are configured to be able to approach and separate from each other. The wrapping motor 53 drives the wrapping roller 52 to rotate the wrapping roller 52 about its axial center.

The pressing portion 54 presses the packing medium S wound around the bunch of coins at the upper and lower ends of the bunch of coins C.

The support rod 51 is fixed to the tip of a support rod arm 511 that is provided so as to be capable of moving up and down, and the support rod 51 is arranged directly below the horizontal shutter 14 when the horizontal shutter 14 is opened by the operation of a support rod arm cam and a support rod arm release cam, not shown. The upper end of the support bar 51 receives the fallen coin bundle C, and then the coin bundle C is lowered in the vertical direction, whereby the coin bundle C is arranged between the three wrapping rollers 52.

The wrapping section 50 causes the wrapping rollers 52 to approach each other with respect to the bunch of coins C arranged between the wrapping rollers 52, and thereby the bunch of coins C is pinched by the wrapping rollers 52. When the packing medium S is fed between the bunch of coins C and the packing roller 52 by the medium feeding portion 30, the packing portion 50 rotates the packing roller 52 by the operation of the packing motor 53, thereby winding the packing medium S around the cylindrical surface of the bunch of coins C. Here, the packing medium S has a width dimension larger than the height of the stacked coins C. The wrapping motor 53 is an example of a roller actuator that rotates the plurality of wrapping rollers 52 around the rotation axis.

Fig. 3 is a perspective view showing the structure of the pressing portion of the first embodiment.

The pressing portion 54 includes an upper pressing claw 541, a lower pressing claw 542, an upper arm 543, a lower arm 544, a guide lever 545, a spring 546, a cam mechanism 547, and a cam motor 548.

The upper pressing claw 541 is hooked on the upper end of the packing medium S wound around the bunch of coins C, and presses the upper end of the packing medium S by applying a downward force. The upper pressing claw 541 is fixed to the upper arm 543.

The lower pressing claw 542 is hooked to the lower end of the packing medium S wound around the bunch of coins C, and presses the lower end of the packing medium S by applying upward force. The lower pressing claw 542 is fixed to the lower arm 544.

The upper arm 543 and the lower arm 544 are supported by the guide bar 545 so as to be slidable in the vertical direction. Thereby, the upper arm 543 and the lower arm 544 can approach or separate from each other. That is, the upper arm 543 and the lower arm 544 are moved toward and away from each other, whereby the upper pressing claw 541 and the lower pressing claw 542 are moved toward and away from each other.

The spring 546 is attached to connect the upper arm 543 and the lower arm 544. The spring 546 constantly biases the upper arm 543 and the lower arm 544 in a direction of approaching each other.

The cam mechanism 547 transmits power for bringing the upper arm 543 and the lower arm 544 close to or away from each other. The cam mechanism 547 includes a first cam 61, a first cam follower 62, a first swing arm 63, a second cam 64, a second cam follower 65, and a second swing arm 66.

The first cam 61 and the second cam 64 are rotationally driven along the vertical plane by a cam motor 548. The first cam 61 and the second cam 64 have the same shape, and are fixed to the rotation shaft so as to be point-symmetrical about the rotation shaft.

The first cam follower 62 rolls along the cam surface of the first cam 61. The first cam follower 62 is mounted on the first swing arm 63. The first end of the first swing arm 63 is supported by a fixed shaft, not shown, so as to be rotatable along a vertical plane. A roller, not shown, that rolls along the lower surface of the upper arm 543 is provided at the second end of the first swing arm 63.

The second cam follower 65 rolls along the cam surface of the second cam 64. A second cam follower 65 is mounted on a first end of the second swing arm 66. The first end of the second swing arm 66 is supported by a fixed shaft, not shown, so as to be rotatable along a vertical plane. A roller, not shown, that rolls along the upper surface of the lower arm 544 is provided at the second end of the second swing arm 66.

Therefore, when the cam motor 548 is operated in a state where the stacked coins C are disposed in the stacked coin disposition space, the first cam 61 and the second cam 64 are rotationally driven. Thereby, the first cam follower 62 and the second cam follower 65 are displaced along the cam surfaces of the first cam 61 and the second cam 64. Thereby, the first swing arm 63 and the second swing arm 66 swing about the respective fixed shafts in the vertical plane. By this swinging motion, the first swinging arm 63 presses the lower surface of the upper arm 543, and the second swinging arm 66 presses the upper surface of the lower arm 544, whereby the upper arm 543 and the lower arm 544 move in the vertical direction so as to approach or separate from each other.

When the upper arm 543 and the lower arm 544 are moved closer to each other from the separated state, the upper pressing claw 541 and the lower pressing claw 542 press the packing medium S wound around the bunch of coins C. That is, the cam motor 548 is an example of a pressing actuator that moves the upper pressing claw 541 and the lower pressing claw 54, which are a pair of pressing claws, so as to approach each other. Note that in other embodiments, the hold down actuator may also be implemented by a hydraulic cylinder or a linear motor.

[ Structure of Medium supply portion ]

Fig. 4 is a plan view showing the structure of the medium supplying unit according to the first embodiment.

The medium supplying unit 30 includes a roll supporting unit 31, a paper feeding roller 32, an auxiliary roller 33, and a pair of insertion guide plates 34.

The roll supporting portion 31 rotatably supports the packing medium roll S1. The roll of packaging medium S1 is formed into a roll shape by winding a long sheet of packaging medium S made of paper or a resin film. The roll support portion 31 includes a table portion 311 disposed horizontally and a support shaft 312 extending vertically upward from the center of the table portion 311. The roll of packaging medium S1 is placed on the table portion 311 with the support shaft 312 inserted on the inner peripheral side. The packing medium roll S1 rotates integrally with the table 311. The roll support portion 31 includes a rotation resistance portion, not shown, which applies rotation resistance to the table portion 311. Therefore, the table portion 311 rotates when an external force of a predetermined level or more is applied, and stops due to the resistance of the rotation resistance portion when no external force is applied. On the upper surface of the table portion 311, an electrostatic capacity sensor 313 extending in the radial direction of the packaging medium roll S1 is provided. The capacitance sensor 313 measures the capacitance of the upper portion of the table portion 311. The capacitance measured by the capacitance sensor 313 varies depending on the material and amount of the roll of packaging medium S1 set on the table portion 311.

Note that the capacitance sensor 313 may be directly attached to the stage 311, or may be mounted on a circuit board disposed on the bottom surface of the stage 311. By mounting the capacitance sensor 313 on the circuit board, the packaging medium S provided on the table portion 311 can be prevented from damaging the capacitance sensor 313, and the durability of the capacitance sensor 313 can be improved.

Fig. 5 is a diagram showing a relationship between a measurement value of the electrostatic capacity sensor and the amount and material of the roll of packaging medium in the first embodiment.

As shown in fig. 5, when the thickness of the packaging medium roll S1 is the same, the value of the capacitance detected by the capacitance sensor 313 differs between the case where the material is resin and the case where the material is paper. Specifically, the following can be found: the value of the capacitance when the roll of resin packaging medium S1 is placed on the table portion 311 is smaller than the value of the capacitance when the roll of resin packaging medium S1 is placed on the table portion 311.

Here, it can be seen that: if the thickness of the packaged media roll S1 in the new condition is the same regardless of the material, the material of the packaged media S can be determined by checking the value of the capacitance when the packaged media roll S1 in the new condition is set in the media supply unit 30. For example, when the thickness of the packaging medium roll S1 in a new product state is 45.0mm, if the value of the electrostatic capacitance is equal to or greater than the first threshold value, the packaging medium S is made of paper. It is understood that if the value of the electrostatic capacitance is smaller than the second threshold value, the material of the package medium S is resin.

Returning to fig. 4, the paper feed roller 32 and the auxiliary roller 33 are provided between the roll support portion 31 and the packing portion 50 in the vicinity of the packing portion 50. The paper feed roller 32 rotates to take up the packaging medium S from the packaging medium roll S1 supported by the roll support portion 31 and supply the packaging medium S to the packaging portion 50. By providing the auxiliary roller 33 so as to face the paper feed roller 32, the packing medium S is nipped between the paper feed roller 32 and the auxiliary roller 33.

The insertion guide plate 34 is a wall plate provided on a path of the packaging medium S from the roll support portion 31 to the paper feed roller 32 and the auxiliary roller 33.

[ Structure of control device ]

Fig. 6 is a schematic block diagram showing the configuration of the control device of the first embodiment.

The coin wrapping machine 1 includes a control device 70 for controlling the coin wrapping machine 1.

The control device 70 includes a processor 71, a main memory 73, a memory 75, and an interface 77.

The process for controlling the coin wrapping machine 1 is stored in the memory 75 in the form of a program. The processor 71 reads out a program from the memory 75, expands the program in the main memory 73, and executes processing in accordance with the program. The processor 71 also secures a predetermined memory area in the main memory 73 according to the program. Examples of the processor 71 include a CPU (Central Processing Unit), a GPU (Graphic Processing Unit), and a microprocessor.

The program may be a program for realizing a part of the functions performed by the control device 70. For example, the program may function by being combined with other programs already stored in the memory, or with other programs installed in other devices.

Examples of the memory 75 include a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, and the like. The memory 75 may be an internal medium directly connected to the bus of the control device 70, or may be an external medium connected to the control device 70 via the interface 77 or a communication line. In addition, when the program is distributed to the control device 70 through the communication line, the control device 70 that has received the distribution may expand the program in the main memory 73 and execute the above-described processing. In at least one embodiment, the memory 75 is a non-transitory tangible storage medium.

Note that, in another embodiment, the control Device 70 may include a custom LSI (Large Scale Integrated Circuit) such as a PLD (Programmable Logic Device) in addition to or instead of the above configuration. Examples of PLDs include PAL (Programmable Logic Array), GAL (general Array Logic), CPLD (compatible Programmable Logic Device), and FPGA (Field Programmable Logic Array). In this case, a part or all of the functions implemented by the processor 71 may be implemented by the integrated circuit. Such an integrated circuit is also included in one example of a processor.

The processor 71 executes a program to include a measurement value acquisition unit 711, a setting detection unit 712, a material determination unit 713, an operation mode determination unit 714, a signal output unit 715, a remaining amount determination unit 716, and a display control unit 717. When executing the program, the processor 71 secures storage areas for the measurement value storage unit 731 and the material storage unit 732 in the main memory 73. The measurement value storage unit 731 stores the capacitance measurement value of the capacitance sensor 313. The material storage unit 732 stores the material of the packaging medium roll S1 provided in the medium supply unit 30. In addition, the memory 75 stores a first margin function 751 that indicates a relationship between the remaining amount of the packaging medium roll S1 and the electrostatic capacitance when the material of the packaging medium S is resin and a second margin function 752 that indicates a relationship between the remaining amount of the packaging medium roll S1 and the electrostatic capacitance when the material of the packaging medium S is paper, which are shown in fig. 5. Note that the "function" is not limited to a function in which a relationship is expressed as a mathematical expression, and includes a function in which a relationship is expressed as a table, and the like.

The measurement value acquisition unit 711 acquires a measurement value from the capacitance sensor 313. The measurement value acquisition unit 711 records the acquired measurement value in the measurement value storage unit 731.

The setting detection unit 712 detects that a new packaging medium roll S1 is set in the medium supply unit 30 based on the measurement value acquired by the measurement value acquisition unit 711. Specifically, the third threshold value is a threshold value corresponding to a state where the remaining amount of the package medium roll S1 is zero, the fourth threshold value is a threshold value indicating the presence of the package medium roll S1, and the setting detector 712 determines that a new package medium roll S1 is set in the medium supplying unit 30 when the measured value of the capacitance becomes equal to or greater than the fourth threshold value from below the third threshold value. When the packaging medium roll S1 is replaced, the old packaging medium roll S1 is removed from the medium supply unit 30, and the measured value of the capacitance is always lower than the third threshold value. Therefore, the setting detection unit 712 can detect that the new packaging medium roll S1 is set in the medium supply unit 30 by detecting that the measured value of the capacitance has changed from the value smaller than the third threshold value to the value equal to or larger than the fourth threshold value.

When the installation detector 712 detects that the roll of packaging medium S1 is installed, the material determiner 713 determines the material of the roll of packaging medium S1 based on the measurement value acquired by the measurement value acquirer 711. Specifically, when the measurement value acquired by the measurement value acquisition unit 711 is equal to or greater than the first threshold value shown in fig. 5, the material specification unit 713 specifies that the packaging medium roll S1 is paper. On the other hand, when the measurement value acquired by the measurement value acquisition unit 711 is smaller than the second threshold value shown in fig. 5, the material specification unit 713 specifies that the packaging medium roll S1 is made of resin. The material specification unit 713 records the specified material in the material storage unit 732.

The operation pattern determination unit 714 determines an operation pattern that defines the rotation speed of the cam motor 548 based on the material stored in the material storage unit 732. The operation modes of the coin wrapping machine 1 include a first mode for pressing the paper-made wrapping medium S and a second mode for pressing the resin-made wrapping medium S. The first mode is a mode in which the rotational speed of the cam motor 548 is driven at a first speed. The second mode is a mode in which the rotational speed of the cam motor 548 is driven at the second speed. For example, the first speed may be set to a speed twice the second speed.

The signal output unit 715 outputs a wrapping instruction signal for rotating the wrapping motor 53 at a constant speed to the wrapping motor 53. The signal output unit 715 outputs a pressing instruction signal to the cam motor 548, the pressing instruction signal causing the cam motor 548 to rotate at a speed corresponding to the motion pattern determined by the motion pattern determination unit 714.

The remaining amount determining unit 716 determines the remaining amount of the packaging medium roll S1 based on the material stored in the material storage unit 732 and the measurement value acquired by the measurement value acquiring unit 711. Specifically, the remaining amount determination unit 716 determines a function for calculating the remaining amount based on the material stored in the material storage unit 732. That is, when the material stored in the material storage unit 732 is paper, the remaining-amount determination unit 716 reads the first remaining-amount function 751 from the memory 75. On the other hand, when the material stored in the material storage unit 732 is resin, the remaining amount determination unit 716 reads the second remaining amount function 752 from the memory 75. The remaining amount determining unit 716 determines the remaining amount of the packaging medium roll S1 by substituting the measurement value acquired by the measurement value acquiring unit 711 into the read function.

The display control unit 717 outputs a display signal for displaying the remaining amount of the packaging medium roll S1 determined by the remaining amount determination unit 716 to the touch sensor panel 4.

[ control method of coin wrapping machine ]

The coin wrapping machine performs a monitoring process of the wrapping medium roll S1 described below at regular control intervals. In the monitoring process of the packaging medium roll S1, the presence or absence of replacement of the packaging medium roll S1, the determination of the material of the packaging medium S, and the determination of the remaining amount of the packaging medium S are performed.

Fig. 7 is a flowchart showing a packing medium roll monitoring process of the coin wrapping machine of the first embodiment.

First, the measurement value acquisition unit 711 acquires a measurement value from the capacitance sensor 313 (step S1). The setting detection unit 712 determines whether or not the measured value of the capacitance stored in the measured value storage unit 731 is smaller than a third threshold value (step S2). That is, the setting detection unit 712 determines whether or not the remaining amount of the packaging medium roll S1 has become zero at the time of the previous measurement. When the measured value of the capacitance stored in the measured value storage unit 731 is smaller than the third threshold value (yes in step S2), the installation detector 712 determines whether or not the measured value acquired in step S1 is equal to or larger than the fourth threshold value (step S3). That is, the setting detection unit 712 determines whether or not the packaging medium roll S1 is present on the table unit 311 at the present measurement. If the measured value obtained in step S1 is equal to or greater than the fourth threshold value (yes in step S3), the installation detector 712 determines that the roll of packaging medium S1 has been replaced. On the other hand, if the measured value of the capacitance stored in the measured value storage unit 731 is equal to or greater than the third threshold value (no in step S2), or if the measured value acquired in step S1 is smaller than the fourth threshold value (no in step S3), the setup detector 712 determines that the packaging medium roll S1 has not been replaced.

When the installation detector 712 determines that the packaging medium roll S1 has been replaced, the material determiner 713 determines whether or not the measured value obtained in step S1 is equal to or greater than a first threshold value (step S4). When the measured value is equal to or greater than the first threshold value, the material specifying unit 713 specifies that the material of the packaging medium S is paper, and records the specified material in the material storage unit 732 (step S5).

On the other hand, when the measured value is smaller than the first threshold value (no in step S4), the material specification unit 713 judges whether or not the measured value acquired in step S1 is smaller than the second threshold value (step S6). When the measured value is less than the second threshold value, the material specifying unit 713 specifies that the material of the packaging medium S is resin, and records the specified material in the material storage unit 732 (step S7).

On the other hand, when the measured value is equal to or greater than the second threshold value and smaller than the first threshold value (no in step S4), the display control unit 717 outputs a display signal for displaying a screen indicating an error to the touch sensor panel 4 (step S8), and the process ends. Note that, after confirming the replacement of the packaging medium roll S1, if the material determination unit 713 determines that the packaging medium S is neither paper nor resin, it may be configured to compare the measured value with other capacitances stored in the material storage unit 732 and report that the packaging medium S is a packaging medium S of a material determined from capacitances matching within a predetermined error range. The material identification unit 713 may identify the material by comparing the capacitance with the capacitance stored in an external server.

If it is determined in step S2 or step S3 that the packaging medium roll S1 has not been replaced, the remaining amount determining unit 716 determines whether the material stored in the material storage unit 732 is paper or resin (step S9).

When the material stored in the material storage unit 732 is paper (step S9: paper), or when the material is determined to be paper in step S5, the remaining amount determination unit 716 determines the remaining amount of the packaging medium roll S1 by substituting the measured value obtained in step S1 into the first remaining amount function 751 stored in the memory 75 (step S10).

On the other hand, when the material stored in the material storage unit 732 is resin (step S9: resin), or when the material is determined to be resin in step S7, the remaining amount determination unit 716 determines the remaining amount of the packaging medium roll S1 by substituting the measured value obtained in step S1 into the second remaining amount function 752 stored in the memory 75 (step S11).

The display control section 717 outputs a display signal for displaying the remaining amount of the packaging medium roll S1 determined in step S10 or step S11 to the touch sensor panel 4 (step S12). Examples of the display of the remaining amount of the packaging medium roll S1 include a thickness display, a remaining usable number display, a near-end display, and an end display of the packaging medium roll S1. Then, the measurement value acquiring unit 711 records the measurement value acquired in step S1 in the measurement value storage unit 731 (step S13), and the process ends.

Fig. 8 is a flowchart showing a process of wrapping the stacked coins in the coin wrapping machine of the first embodiment. Fig. 9 is a timing chart showing an operation in the process of wrapping the stacked coins in the coin wrapping machine according to the first embodiment. Fig. 9 shows a timing chart showing the change over time in the speed of the paper feed motor, the wrapping motor 53, and the cam motor 548, which are not shown. When a predetermined amount of loose coins are thrown into the coin wrapping machine 1 and the stacked coins C are arranged in the stacked coin arrangement space by opening the horizontal shutter 14, the operation mode determination unit 714 determines whether the material stored in the material storage unit 732 is paper or resin (step S31).

When the material stored in the material storage unit 732 is paper (step S31: paper), the operation pattern specifying unit 714 specifies the operation pattern as the first pattern (step S32). On the other hand, when the material stored in the material storage unit 732 is resin (step S31: resin), the operation pattern determination unit 714 determines the operation pattern as the second pattern (step S33).

The signal output unit 715 outputs a rotation instruction signal to rotate the cam motor at a speed corresponding to the determined operation mode to the cam motor 548 (step S34). Thus, as shown in the timing chart of the cam motor 548 in fig. 9, the speed of the cam motor 548 in the second mode shown by the solid line and the speed of the cam motor 548 in the first mode shown by the broken line are different from each other.

Then, the signal output unit 715 outputs a rotation instruction signal for rotating the paper feed motor at a constant speed to a paper feed motor (not shown) for rotating the paper feed roller 32 (step S35). When the paper feed motor is rotated for a certain time, the signal output section 715 outputs a stop instruction signal to the paper feed motor (step S36). Next, the signal output unit 715 outputs a rotation instruction signal that rotates at a constant speed to the wrapping motor 53 (step S37). After that, the signal output unit 715 outputs a stop instruction signal to the cam motor and the packing motor 53 (step S38). For example, in the embodiment, when the first cam 61 and the second cam 64 rotate once each time the cam motor 548 rotates once, the signal output unit 715 outputs the stop instruction signal to the cam motor 548 after the cam motor 548 (the first cam 61 and the second cam 64) rotates once. Thus, as shown in the timing chart of the cam motor 548 in fig. 9, the stop timing of the cam motor 548 in the second mode shown by the solid line and the stop timing of the cam motor 548 in the first mode shown by the broken line are different from each other.

When the packing motor 53 rotates to a predetermined stop position, the signal output unit 715 outputs a stop instruction signal to the packing motor 53. That is, in the example shown in fig. 9, the packing motor 53 and the cam motor 548 are stopped at different timings, but the packing motor 53 and the cam motor 548 may be stopped at substantially the same timing.

[ Effect and Effect ]

As described above, according to the first embodiment, the control device 70 specifies the operation mode that defines the rotation speed of the cam motor 548, and outputs a control signal based on the specified operation mode to the cam motor 548. Thus, the coin wrapping machine 1 can change the approaching speed of the upper clamp 541 and the lower clamp 542 per one rotation of the wrapping roller 52 by switching the preset operation mode according to the material of the wrapping medium. Therefore, by appropriately determining the operation mode according to the packing medium, the coin wrapping machine 1 can press both end sides of the packing medium S in which the stacked coins C are wrapped at an appropriate speed.

Further, according to the first embodiment, the control device 70 specifies the material of the packaging medium S based on the measurement value of the capacitance sensor 313, and specifies the operation mode based on the specified material. Accordingly, the coin wrapping machine 1 can automatically determine the material of the wrapping medium S set on the table portion 311 based on the measurement value of the electrostatic capacity sensor 313, and can press both end sides of the wrapping medium wrapped with the stacked coins C at an appropriate speed in an operation mode determined according to the material of the wrapping medium S.

Note that the electrostatic capacity sensor 313 of the first embodiment is provided in the table portion 311 in the radial direction of the packaging medium roll S1, but is not limited to this in other embodiments. For example, in other embodiments, the electrostatic capacity sensor 313 may be provided along the support shaft 312. Even if the electrostatic capacity sensor 313 is provided along the support shaft 312, the output value of the electrostatic capacity sensor 313 changes depending on the material and the remaining amount of the roll S1 of packaging medium, and therefore the material and the remaining amount of the packaging medium S can be appropriately determined.

< second embodiment >

The coin wrapping machine 1 of the first embodiment sets the number of rotations of the wrapping motor 53 to be constant, and changes the number of rotations of the cam motor 548 according to the material of the wrapping medium S. In contrast, in the coin wrapping machine 2 according to the second embodiment, the number of rotations of the cam motor 548 is constant, and the number of rotations of the wrapping motor 53 is changed according to the material of the wrapping medium S.

Fig. 10 is a flowchart showing a process of wrapping the stacked coins in the coin wrapping machine of the second embodiment. Fig. 11 is a timing chart showing an operation of the coin wrapping machine according to the second embodiment in the process of wrapping the stacked coins. Fig. 11 shows a timing chart showing the change over time in the speed of the paper feed motor, the wrapping motor 53, and the cam motor 548, which are not shown.

When a predetermined amount of loose coins are thrown into the coin wrapping machine 1 and the stacked coins C are arranged in the stacked coin arrangement space by opening the horizontal shutter 14, the operation mode determination unit 714 determines whether the material stored in the material storage unit 732 is paper or resin (step S131). When the material stored in the material storage unit 732 is paper (step S131: paper), the operation mode determination unit 714 determines the operation mode as the first mode (step S132). On the other hand, when the material stored in the material storage unit 732 is resin (step S131: resin), the operation mode determination unit 714 determines the operation mode as the second mode (step S133).

Next, the signal output unit 715 outputs a rotation instruction signal that rotates at a constant speed to the cam motor (step S134).

In the second embodiment, the rotation speed of the cam motor is set to the rotation speed of the cam motor in the case where the packaging medium described in the first embodiment is resin (second mode). In this case, as for the rotation speed of the packing motor, the rotation speed in the first mode is set to a speed about 2 times as high as the rotation speed in the second mode. Note that the rotational speed of the cam motor may be set to a rotational speed of the cam motor in the case where the wrapping medium described in the first embodiment is paper (first mode), and in this case, the rotational speed of the wrapping motor is about 1/2 times the rotational speed in the first mode relative to the rotational speed in the second mode.

Next, the signal output unit 715 outputs a rotation instruction signal that rotates at a constant speed to a paper feed motor (not shown) that rotates the paper feed roller 32 (step S135). When the paper feed motor is rotated for a certain time, the signal output section 715 outputs a stop instruction signal to the paper feed motor (step S136). Next, the signal output unit 715 outputs a rotation instruction signal to the wrapping motor 53 to rotate the wrapping motor 53 at a speed corresponding to the operation mode determined in step S132 or step S133 (step S137). For example, the number of rotations of the packing motor 53 in the case where the operation mode is the first mode may be set to 1/2 of the number of rotations of the packing motor 53 in the case where the operation mode is the second mode. Thus, as shown in the timing chart of the packing motor 53 of fig. 11, the speed of the packing motor 53 in the second mode shown by the broken line and the speed of the packing motor 53 in the first mode shown by the solid line are different from each other.

After that, the signal output unit 715 outputs a stop instruction signal to the packing motor 53 and the cam motor 548 (step S138).

[ Effect and Effect ]

In this way, according to the second embodiment, the control device 70 specifies the operation mode that defines the rotation speed of the packing motor 53, and outputs the control signal based on the specified operation mode to the packing motor 53. Accordingly, the coin wrapping machine 1 can change the number of rotations of the wrapping roller 52 for each moving speed of the upper pressing claw 541 and the lower pressing claw 542 according to the operation mode. Thus, the stacked coins C can be appropriately packed by determining an appropriate operation mode according to the material of the packing medium.

Note that the control device of the first embodiment changes the rotation speed of the cam motor 548 in accordance with the operation mode by setting the packing motor 53 to a constant speed, and the control device of the second embodiment changes the rotation speed of the packing motor 53 in accordance with the operation mode by setting the cam motor 548 to a constant speed. On the other hand, in another embodiment, the control device 70 may change the rotation speed of both the packing motor 53 and the cam motor 548 according to the operation mode. In either embodiment, the operating mode defines the relative relationship of the rotational speed of the pack motor 53 and the rotational speed of the cam motor 548.

< third embodiment >

The control device 70 according to the first and second embodiments determines the material of the packaging medium S based on the measurement value of the capacitance sensor 313. In contrast, the control device 70 of the third embodiment determines the material of the packaging medium S using an optical sensor.

Fig. 12 is a plan view showing the structure of the medium supplying unit according to the third embodiment. As shown in fig. 12, the electrostatic capacity sensor 313 includes a first light emitting element 341, a first light receiving element 342, a second light emitting element 343, and a second light receiving element 344.

The first light emitting element 341 and the second light emitting element 343 are provided on one of the pair of insertion guide plates 34. The first light receiving element 342 and the second light receiving element 344 are provided on the other of the pair of insertion guide plates 34. The first light receiving element 342 is provided so as to face the first light emitting element 341. The second light receiving element 344 is provided so as to face the second light emitting element 343.

The first light emitting element 341 emits light of a wavelength that can be absorbed or reflected by the paper through the resin. Thus, if the first light receiving element 342 cannot receive the light emitted by the first light emitting element 341, it is known that the paper-made packaging medium S is passing between the pair of insertion guide plates 34. That is, the first light emitting element 341 and the first light receiving element 342 function as paper detection sensors.

The second light emitting element 343 emits light of a wavelength that can be absorbed or reflected by the resin and the paper. Thus, if the second light receiving element 344 cannot receive the light emitted by the second light emitting element 343, it is known that the paper or resin packaging medium S is passing between the pair of insertion guide plates 34. That is, the second light emitting element 343 and the second light receiving element 344 function as a medium detection sensor.

The measurement value acquisition unit 711 of the third embodiment acquires measurement values of the light amounts of the first light receiving element 342 and the second light receiving element 344. When both the light receiving amount of the first light receiving element 342 and the light receiving amount of the second light receiving element are equal to or greater than the threshold value, the material specification unit 713 determines that the packaging medium roll S1 is not set. The material specification unit 713 determines that the material of the packaging medium S is resin when the light receiving amount of the first light receiving element 342 is equal to or greater than the threshold value and the light receiving amount of the second light receiving element 344 is smaller than the threshold value. The material specifying unit 713 judges that the material of the package medium S is paper when the light receiving amount of the first light receiving element 342 and the light receiving amount of the second light receiving element 344 are smaller than the threshold value.

In this way, the controller 70 according to the third embodiment can specify the material of the packaging medium S even when the measurement values of the sensors other than the capacitance sensor 313 are used. Note that, in the third embodiment, the material of the packaging medium S is determined using two types of light emitting elements, but the present invention is not limited to this in other embodiments. For example, in another embodiment, the light emitting element emits light of a wavelength having a different absorption rate in the case of the resin and the paper, and thus the control device 70 may determine the material of the packaging medium S based on the light receiving level in the light receiving element.

< other embodiment >

While one embodiment has been described in detail with reference to the drawings, the specific configuration is not limited to the above configuration, and various design changes and the like may be made. For example, in other embodiments, the processing procedure may be changed as appropriate. Further, a part of the processing may be executed in parallel.

In another embodiment, the input of the material or the operation mode may be received by a switch operation or the like of the user, without providing a sensor for measuring a physical quantity of the packaging medium S.