1. A lining and back lining device of a bar tacking machine is characterized by comprising

The first driving mechanism (1), the first driving mechanism (1) is used for dragging the main cloth;

a second drive mechanism (2), the second drive mechanism (2) having a second drive shaft (23);

the cutting device (3) is provided with a movable knife (31) and a knife rest (32) matched with the movable knife (31), and the movable knife (31) is fixedly connected with the second driving shaft (23); the second driving mechanism (2) drives the movable knife (31) to do cutting action;

defining the part of the main cloth, which is positioned between the movable knife (31) and the knife platform (32), as a preprocessing area;

the movable knife (31) has two states of knife outlet and knife retraction; when the second driving mechanism (2) drives the movable knife (31) to be discharged, the movable knife (31) is in contact with the knife rest (32) to cut a preprocessing area of the main cloth; when the second driving mechanism (2) drives the movable knife (31) to retract, the movable knife (31) resets, and the first driving mechanism (1) drags the preprocessing area of the main cloth to leave the knife rest (32).

2. The bar tacking machine lining and contrast device according to claim 1, wherein the moving knife (31) is a nylon rod, the knife stand (32) is a hollow tube (321); the first driving mechanism (1) further comprises a limiting guide pipe (11) fixedly arranged on a sewing machine frame, and the limiting guide pipe (11) is provided with a channel (111) for the main cloth to pass through; a first through hole (112) is formed in the limiting guide pipe (11), and the area, which is opposite to the first through hole (112), on the main cloth is the preprocessing area; the top end of the hollow pipe (321) is opposite to the top end of the movable knife (31), and the top end of the hollow pipe (321) and the top end of the movable knife (31) are respectively positioned at two sides of the first through hole (112); when the movable knife (31) is out of the knife, the movable knife (31) penetrates through the first through hole (112) and then contacts with the hollow tube (321), the preprocessing area is cut, and lining cloth needed to be sewn is cut.

3. The bar lining device of the bar tacking machine as claimed in claim 2, wherein a notch (3211) is formed at the top end of the hollow pipe (321), and when the movable knife (31) contacts the knife stand (32), the position of the pre-processing region at the notch (3211) is not cut.

4. The bar tacking machine lining contrast device according to claim 1, wherein the first driving mechanism (1) comprises a stepping motor (12), a synchronous wheel transmission device (13) and a clamping feeding wheel device (14) for dragging the main cloth; the clamping feeding wheel device (14) comprises a first feeding wheel (141) and a second feeding wheel (142), and when the main cloth passes through a gap between the first feeding wheel (141) and the second feeding wheel (142), the first feeding wheel (141) and the second feeding wheel (142) abut against the main cloth; two ends of the synchronizing wheel transmission device (13) are respectively fixedly connected with a motor shaft of the stepping motor (12) and the clamping feeding wheel device (14); the stepping motor (12) drives the first feeding wheel (141) to rotate through a synchronous wheel transmission device (13).

5. The bar tacking machine lining contrast device according to claim 4, characterized in that the gripping feed wheel device (14) further comprises a first cylinder (143) with a first driving rod (1431), the first driving rod (1431) being fixedly connected with the second feed wheel (142); the first air cylinder (143) pushes the second feeding wheel (142) to displace; when the main cloth is ready to penetrate between the first feeding wheel (141) and the second feeding wheel (142), the first air cylinder (143) drives the second feeding wheel (142) to be far away from the first feeding wheel (141); when the main cloth passes through a gap between the first feeding wheel (141) and the second feeding wheel (142), the first cylinder (143) drives the second feeding wheel (142) to be close to the first feeding wheel (141).

6. Bartacker lining device according to claim 5, characterized in that said gripping and feeding wheel devices (14) are two in number, one on each side of the sewing machine head (6).

7. The bar tacking machine lining and contrast device according to claim 1, wherein the second driving mechanism (2) comprises a second air cylinder (21) and a second transmission device (22), and the second transmission device (22) is connected between the second driving shaft (23) and the movable knife (31); the second transmission device (22) comprises a second transmission shaft (221) and a second transmission piece (222) fixedly connected with the second transmission shaft (221), the second transmission piece (222) is fixedly connected with the second driving shaft (23), the second transmission piece (222) converts the back-and-forth reciprocating motion of the second driving shaft (23) into the rotation of the second transmission shaft (221), and the second transmission shaft (221) is fixedly connected with one side of the movable knife (31); the second air cylinder (21) drives the movable knife (31) to rotate through the second transmission device (22).

8. The bar tacking machine lining and contrast device according to claim 1, 4 or 7, wherein the first driving mechanism (1) further comprises a first limiting device (15), a pressing air cylinder (16), a feeding air cylinder (17) and a first slide rail (18); the material pressing cylinder (16) is connected with the first limiting device (15); the material pressing air cylinder (16) drives the first limiting device (15) to ascend or descend; the material pressing cylinder (16) is connected to the first sliding rail (18) in a sliding manner; the feeding cylinder (17) is fixedly connected with the pressing cylinder (16), and the pressing cylinder (16) drives the feeding cylinder (17) to slide on the first sliding rail (18).

9. A tacking machine interlining device according to claim 1, further comprising a housing (4) fixably mounted on a sewing machine frame; the first driving mechanism (1), the second driving source and the cutting device (3) are all fixedly installed inside the shell (4).

10. The bar tacking machine lining contrast device according to claim 2, wherein the lining contrast device further comprises a fixing frame (5), two ends of the fixing frame (5) are respectively fixedly connected with the second driving mechanism (2) and the cutter table (32); the second driving mechanism (2) and the tool post (32) can change the installation position on the fixing frame (5) through screws.

Background

With the improvement of living standard, people have higher and higher requirements on the comfort level of clothes, and therefore, the requirements on clothes sewing are higher and higher. In the sewing process of the clothes, some areas with dense needles and threads need to be reinforced by adding lining cloth, so that the condition that the shell fabric of the hitching and reinforcing part is damaged when the clothes such as jeans and the like are washed by water is prevented, and the sewing part is in the most comfortable contact with the skin of people.

The existing loop reinforcement mode adopts manual cutting cloth for reinforcement, the smaller the size is, the greater the cutting difficulty is, and the manual arrangement is carried out below a machine presser foot for loop reverse lining reinforcement sewing. Therefore, the labor cost is high, the efficiency is low, and the manual placing positions are not uniform, so that the attractiveness of the sewn lining cloth is not high.

Disclosure of Invention

The invention aims to solve the technical problem of high cost of manually cutting main cloth and provides a lining and contrast device of a bar tacking machine.

The purpose of the invention can be realized by the following technical scheme:

a lining and back-lining device of a bar tacking machine comprises

The first driving mechanism is used for dragging a main cloth, and the main cloth is provided with a preprocessing area;

a second drive mechanism having a second drive shaft;

the cutting device is provided with a movable cutter and a cutter platform matched with the movable cutter, and the movable cutter is fixedly connected with the second driving shaft; the second driving mechanism drives the movable knife to do cutting action;

defining the part of the main cloth between the movable knife and the knife platform as a preprocessing area;

the movable cutter has two states of cutter outlet and cutter retraction; when the second driving mechanism drives the movable knife to be out of the knife, the movable knife is in contact with the knife rest to cut the preprocessing area of the main cloth; when the second driving mechanism drives the movable knife to retract, the movable knife resets, and the first driving mechanism drags the preprocessing area of the main cloth to leave the knife rest.

Preferably, the movable knife is a nylon rod, and the knife rest is a hollow tube; the first driving mechanism further comprises a limiting guide pipe fixedly arranged on a frame of the sewing machine, and the limiting guide pipe is provided with a channel for the main cloth to move; a first through hole is formed in the limiting guide pipe, and the area, facing the inner part of the first through hole, of the main cloth is the preprocessing area; the top end of the hollow tube and the top end of the movable knife are arranged oppositely, and the top end of the hollow tube and the top end of the movable knife are respectively positioned at two sides of the first through hole; when the movable knife is out of the knife, the movable knife penetrates through the first through hole (112) and then contacts with the hollow tube, the preprocessing area is cut, and lining cloth needing to be sewn is cut.

Preferably, a notch is formed in the top end of the hollow pipe, and when the movable cutter is in contact with the cutter platform, the position, located in the notch, of the preprocessing area cannot be cut.

Preferably, the first driving mechanism comprises a stepping motor, a synchronous wheel transmission device and a clamping and feeding wheel device for dragging the main cloth; the clamping and feeding wheel device comprises a first feeding wheel and a second feeding wheel, and when the main cloth passes through a gap between the first feeding wheel and the second feeding wheel, the first feeding wheel and the second feeding wheel are abutted against the main cloth; two ends of the synchronous wheel transmission device are respectively fixedly connected with a motor shaft of the stepping motor and the clamping and feeding wheel device; the stepping motor drives the first feeding wheel to rotate through the synchronous wheel transmission device.

Preferably, the clamping and feeding wheel device further comprises a first air cylinder with a first driving rod, and the first driving rod is fixedly connected with the second feeding wheel; the first cylinder pushes the second feeding wheel to displace; when the main cloth is ready to penetrate between the first feeding wheel and the second feeding wheel, the first air cylinder drives the second feeding wheel to be far away from the first feeding wheel; when the main cloth passes through a gap between the first feeding wheel and the second feeding wheel, the first cylinder drives the second feeding wheel to be close to the first feeding wheel.

Preferably, the number of the clamping and feeding wheel devices is two, and the clamping and feeding wheel devices are respectively positioned on two sides of the sewing machine head.

Preferably, the second driving mechanism comprises a second air cylinder and a second transmission device, and the second transmission device is connected between the second driving shaft and the movable knife; the second transmission device comprises a second transmission shaft and a second transmission piece fixedly connected with the second transmission shaft, the second transmission piece is fixedly connected with the second driving shaft, the second transmission piece converts the back-and-forth reciprocating motion of the second driving shaft into the rotation of the second transmission shaft, and the second transmission shaft is fixedly connected with one side of the movable knife; the second cylinder drives the movable knife to rotate through the second transmission device.

Preferably, the first driving mechanism further comprises a first limiting device, a material pressing cylinder, a material feeding cylinder and a first sliding rail; the material pressing cylinder is connected with the first limiting device; the material pressing cylinder drives the first limiting device to ascend or descend; the material pressing cylinder is connected to the first sliding rail in a sliding mode; the feeding cylinder is fixedly connected with the material pressing cylinder, and the material pressing cylinder drives the feeding cylinder to slide on the first sliding rail.

Preferably, the sewing machine further comprises a shell which can be fixedly arranged on the sewing machine frame; the first drive mechanism, the second drive source and the cutting device are all fixedly mounted inside the housing.

Preferably, the lining device further comprises a fixing frame, and two ends of the fixing frame are respectively and fixedly connected with the second driving mechanism and the cutter platform; the second driving mechanism and the tool post can be arranged on the fixed frame in a changed mounting position through screws.

Compared with the prior art, the main cloth is cut through the cooperation of the first driving mechanism, the second driving mechanism and the cutting device. In the invention, the second driving mechanism drives the cutting device to cut the main cloth and cut lining cloth needed to be sewn. After the cutting is completed, the first driving mechanism drags the cut main cloth to reach a sewing area of the sewing machine, and then an operator operates the sewing machine to sew the cut lining cloth on the clothes. The lining mode greatly reduces the operation flow of workers, improves the effect and has excellent economic effect.

Drawings

Fig. 1 is a schematic view of a lining apparatus according to the first embodiment.

Fig. 2 is a schematic structural view of a lining apparatus according to the first embodiment.

Fig. 3 is a schematic structural view three of the lining apparatus according to the first embodiment.

Fig. 4 is an enlarged view of a in fig. 3.

Fig. 5 is a schematic view of the lining apparatus according to the first embodiment.

Fig. 6 is a schematic view of the first lining apparatus according to the second embodiment.

FIG. 7 is a second schematic view of the lining device of the second embodiment.

Fig. 8 is an enlarged view at B in fig. 7.

Fig. 9 is a schematic view showing the structure of the lining apparatus according to the second embodiment.

In the figure, 1, a first driving mechanism; 11. a limiting catheter; 111. a channel; 112. a first through hole; 12. a stepping motor; 13. a synchronizing wheel transmission; 14. a clamping feed wheel device; 141. a first feed wheel; 142. a second feed wheel; 143. a first cylinder; 1431. a first drive lever; 15. a first limiting device; 16. a material pressing cylinder;

17. a feeding cylinder; 18. a first slide rail; 2. a second drive mechanism; 21. a second cylinder; 22. a second transmission device; 221. a second drive shaft; 222. a second transmission member; 23. a second drive shaft; 3. a cutting device; 31. moving a knife; 32. a tool post;

321. a hollow tube; 4. a housing; 5. a fixed mount; 6. a sewing machine head.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

as shown in fig. 1-5, a lining and contrast device of a bar tacking machine comprises a first driving mechanism 1, wherein the first driving mechanism 1 is used for dragging a main cloth, and the main cloth is provided with a preprocessing area; the preprocessing area described in this embodiment does not refer to only one piece, and in this embodiment, the area of the main fabric to be processed by the lining device is the preprocessing area.

As shown in fig. 1, the first driving mechanism 1 includes a stepping motor 12, a synchronizing wheel transmission device 13 and a clamping and feeding wheel device 14 for dragging the main cloth.

The synchronizing wheel transmission device 13 comprises a belt and two synchronizing wheels, wherein one synchronizing wheel is fixedly connected with a motor shaft of the stepping motor 12; the specific structure of the synchronizing wheel gear 13 in this embodiment is shown in fig. 8. Two ends of the synchronizing wheel transmission device 13 are respectively fixedly connected with a motor shaft of the stepping motor 12 and the clamping feeding wheel device 14;

the clamping feeding wheel device 14 comprises a first feeding wheel 141 and a second feeding wheel 142, and when the main cloth passes through a gap between the first feeding wheel 141 and the second feeding wheel 142, the first feeding wheel 141 and the second feeding wheel 142 are abutted on the main cloth; the stepping motor 12 drives the first feeding wheel 141 to rotate through the synchronous wheel transmission device 13, so as to drag the main cloth.

As shown in fig. 1 to 3, in order to facilitate the operation of the main fabric, the clamping and feeding wheel device 14 of the present embodiment further includes a first cylinder 143 having a first driving rod 1431, and the first driving rod 1431 is fixedly connected to the second feeding wheel 142; the first air cylinder 143 pushes the second feeding wheel 142 to displace; when the main fabric is ready to penetrate between the first feeding wheel 141 and the second feeding wheel 142, the first air cylinder 143 drives the second feeding wheel 142 to be far away from the first feeding wheel 141; when the main cloth passes through the gap between the first feeding wheel 141 and the second feeding wheel 142, the first cylinder 143 drives the second feeding wheel 142 to be close to the first feeding wheel 141, so that the second feeding wheel 142 and the first feeding wheel 141 are matched to clamp the main cloth.

In this embodiment, the number of the clamping and feeding wheel devices 14 is two, and the clamping and feeding wheel devices are respectively located at two sides of the sewing machine head 6, so that the moving path of the main cloth can be limited, and left and right deviation is prevented from occurring, and further the operation effect of the sewing machine is influenced.

The lining device of the embodiment further comprises a second driving mechanism 2 and a cutting device 3 for cutting the main cloth, wherein the second driving mechanism 2 is used for driving the cutting device 3 to perform cutting operation. The second drive mechanism 2 has a second drive shaft 23.

The lining device of the embodiment also comprises a cutting device 3 for cutting the main cloth, the cutting device 3 is provided with a movable knife 31 and a knife platform 32 matched with the movable knife 31, and the area on the main cloth close to the knife platform 32 is a preprocessing area. The movable knife 31 is fixedly connected with the second driving shaft 23; the second driving mechanism 2 drives the movable blade 31 to perform a cutting action. In this embodiment, the second driving mechanism 2 is an air cylinder, the movable blade 31 is a nylon rod, the nylon rod is fixedly connected with a driving rod of the air cylinder, and the knife rest 32 is a hollow tube 321. The nylon rod has moderate hardness, and can effectively reduce the abrasion of inertia caused by the reciprocating motion of the cylinder to the hollow pipe 321 in the one-time contact of the movable knife 31 and the hollow pipe 321. In this embodiment, a gap 3211 is opened at the top end of the hollow tube 321, when the movable knife 31 contacts the knife rest 32, the position of the gap 3211 in the preprocessing region cannot be cut, and the gap can prevent the cut lining cloth from separating from the main cloth, and further cannot be dragged to the lower part of the presser foot of the sewing machine. .

As shown in fig. 1, 3 and 4, the first driving mechanism 1 further includes a limiting duct 11 fixedly installed on the frame of the sewing machine, and the limiting duct 11 is provided with a channel 111 for the main cloth to move. The cloth to be used as lining is passed through the restraining catheter 11 via a passage 111. In order to cut the main cloth, a first through hole 112 is formed in the limiting guide pipe 11, and the area, located in the first through hole 112, of the main cloth is a preprocessing area. The top end of the hollow tube 321 and the top end of the movable knife 31 are arranged oppositely, that is, the top end of the hollow tube 321 and the top end of the movable knife 31 are respectively positioned at two sides of the first through hole 112; when the movable blade 31 is out of the cutter, the movable blade 31 is contacted with the hollow pipe 321 in the first through hole 112, and the cutting of the preprocessing area is realized. It should be noted that, since the hollow tube 321 as the knife rest 32 of the present embodiment has the notch 3211, when the movable knife 31 is out of the knife, the movable knife 31 is in close contact with most of the hollow tube 321. The main fabric at the gap 3211 is not cut, so that the cut main fabric is also attached to the main fabric. When the first driving mechanism 1 drags the cut main cloth to reach the position below the presser foot of the sewing machine, the cut lining and the main cloth can be disconnected in the process of sewing the cut main cloth to another cloth due to the matching of the presser foot and the stitch of the sewing machine. That is, the cooperation of the movable knife 31 and the knife platform 32 of the present embodiment skillfully makes the cut main cloth not completely cut off, and makes it cut off after reaching the sewing area, which is very convenient. In addition, the operation mode enables the main cloth to be reasonably utilized, and the size of each cut main cloth is consistent, so that the appearance of another cloth when the cloth is sewn cannot be influenced.

Since the movable blade 31 vibrates every time it is discharged, the contact between the movable blade 31 and the knife rest 32 is affected. Therefore, as shown in fig. 2, the lining device further includes a fixing frame 5, and two ends of the fixing frame 5 are respectively fixedly connected with the second driving mechanism 2 and the tool post 32. The fixed mount 5 can play a strong and firm role in the knife discharging and resetting of the movable knife 31. In addition, the mounting positions of the second driving mechanism 2 and the tool post 32 can be changed on the fixing frame 5 through screws, so that the positions of the second driving mechanism 2 and the tool post 32 can be conveniently adjusted according to different use conditions.

As shown in fig. 3, the lining device of the present embodiment further includes a housing 4 which is fixedly mountable to the frame of the sewing machine. The first drive mechanism 1, the second drive source and the cutting device 3 are all fixedly mounted inside the housing 4. Therefore, the lining device is convenient to mount, dismount and transport.

The lining apparatus of this embodiment further includes a cloth wheel for storing the main cloth, the cloth wheel being mounted on the sewing machine frame.

The first driving mechanism 1 and the second driving mechanism 2 of the present embodiment are electrically connected to a main controller, and the main controller is also electrically connected to the sewing machine, so that the first driving mechanism 1 and the second driving mechanism 2 can perform corresponding actions when the sewing machine operates.

The specific working process is as follows:

the user firstly makes the second feeding wheel 142 far away from the first feeding wheel 141 through the first air cylinder 143, then makes the main cloth pass through the channel 111 of the limiting guide pipe 111 and between the first feeding wheel 141 and the second feeding wheel 142 of the two clamping feeding wheel devices 14, and then controls the first air cylinder 143 to make the second feeding wheel 142 close to the first feeding wheel 141, so that the second feeding wheel 142 and the first feeding wheel 141 are matched to clamp the main cloth. Then, the sewing machine is operated, and when the presser foot of the sewing machine is lifted, the second cylinder 21 pushes the movable knife 31, so that the movable knife 31 and the hollow pipe 321 are contacted in the first through hole 112, thereby achieving the preprocessing area for cutting the main cloth. After cutting, the movable knife 31 is reset, the motor shaft of the stepping motor 12 rotates to drive the first feeding wheel 141 to rotate, and the main cloth is dragged to the position below the presser foot of the sewing machine to perform sewing operation, so that the sewing operation is performed in a circulating reciprocating mode, and the sewing machine is very convenient.

Example two:

as shown in fig. 6 to 9, the present embodiment is different from the first embodiment in that the lining device of the present embodiment is installed above the sewing machine frame and on the sewing machine head side. As shown in fig. 6 to 8, the second driving mechanism 2 of the present embodiment includes a second cylinder 21 and a second transmission device 22, and the second transmission device 22 is connected between the second driving shaft 23 and the movable blade 31; the second transmission device 22 comprises a second transmission shaft 221 and a second transmission piece 222 fixedly connected with the second transmission shaft 221, the second transmission piece 222 is fixedly connected with the second driving shaft 23, the second transmission piece 222 converts the back-and-forth reciprocating motion of the second driving shaft 23 into the rotation of the second transmission shaft 221, and the second transmission shaft 221 is fixedly connected with one side of the movable blade 31; the second cylinder 21 drives the movable blade 31 to rotate through the second transmission device 22.

The first driving mechanism 1 of the embodiment has only one clamping and feeding device 14, which is installed at a position close to the head of the sewing machine, and the first driving mechanism 1 of the embodiment further comprises a first limiting device 15, a material pressing cylinder 16, a feeding cylinder 17 and a first slide rail 18; the material pressing cylinder 16 is connected with the first limiting device 15; the material pressing air cylinder 16 drives the first limiting device 15 to ascend or descend; the material pressing cylinder 16 is connected to the first slide rail 18 in a sliding manner; the feeding cylinder 17 is fixedly connected with the material pressing cylinder 16, and the material pressing cylinder 16 drives the feeding cylinder 17 to slide on the first slide rail 18.

The movable knife 31 of the embodiment has a knife edge, the knife rest 32 is a platform, and the movable knife 31 rotates to contact with the knife rest 32 to cut off the main cloth. When the main cloth is cut off, the pressing cylinder 16 controls the first limiting device 15 to lift, then the feeding cylinder 17 drives the pressing cylinder 16 to move to the cut main cloth position along the first slide rail 18, and at the moment, the first limiting device 15 is located above the cut main cloth. Then the pressing cylinder 16 controls the first limiting device 15 to descend until the first limiting device 15 presses the cut main cloth, then the feeding cylinder 17 drives the pressing cylinder 16 to move to one side of the presser foot of the sewing machine, at the moment, the cut main cloth also moves to the lower side of the presser foot, and then the pressing cylinder 16 resets. Then, the sewing machine performs a sewing operation.

The present embodiment can change the shape of the cut main cloth by changing the shape of the different hollow pipe 321.

The lining device of this embodiment further comprises a cloth wheel for storing the main cloth, which is mounted on the support frame of the housing 4.

The first driving mechanism 1 and the second driving mechanism 2 of the present embodiment are electrically connected to a main controller, and the main controller is also electrically connected to the sewing machine, so that the first driving mechanism 1 and the second driving mechanism 2 can perform corresponding actions when the sewing machine operates.

Compared with the first embodiment, the number of parts is reduced, the layout of parts is optimized, the volume of the lining device is greatly reduced, and the lining device is easy to mount and dismount and is very convenient.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although the terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.