1. The cutting-off control device of the full-automatic packer diaphragm is characterized by comprising

A mounting frame (1);

one end of the resistance wire (5) is connected with the mounting rack (1) through a first insulator (61);

the elastic piece (7) is used for providing force for changing the position of the other end of the resistance wire (5);

the switch (11) is directly or indirectly driven to act after the position of the other end of the resistance wire (5) is changed; and

and the controller (8) is connected with the switch (11) and is connected with the resistance wire (5) through a connecting wire (9).

2. The cutoff control device for the diaphragm of the fully automatic wrapping machine according to claim 1, wherein said switch (11) is a proximity switch, further comprising

One end of the connecting piece (4) is connected with the other end of the resistance wire (5) through a second insulating piece (62), and when the position of the other end of the resistance wire (5) is changed, the connecting piece (4) is driven to move; and

swing piece (12), set up on mounting bracket (1), when connecting piece (4) remove, drive swing piece (12) swing, swing piece (12) swing back, its one end is close to or keeps away from switch (11).

3. The cutoff control device for the diaphragm of the fully automatic wrapping machine according to claim 1, further comprising

A mutual inductance detector (13), the mutual inductance detector (13) comprising

The mutual inductance coil (14) is sleeved outside any connecting wire (9); and

and the signal converter (15) is connected with the mutual inductance coil (14) and is used for detecting the current of the resistance wire (5).

4. The cutting control device of the full-automatic packer diaphragm according to claim 3, characterized in that the resistance wire (5) is a nickel-chromium resistance wire with a diameter of 0.8mm, and the voltage of the controller (8) is below 48V.

5. The cutting-off control device of the full-automatic wrapping machine diaphragm according to claim 4, characterized in that the heating temperature of the resistance wire (5) during working is 400-500 ℃.

6. The severing control device of a full-automatic wrapping machine diaphragm according to claim 3, characterized in that said signal converter (15) is connected to said controller (8).

7. The cutoff control device for the diaphragm of the fully automatic wrapping machine according to claim 2, further comprising

A secondary amplification mechanism comprising

The rotating shaft (16) is rotatably arranged on the mounting rack (1), and a first gear (17) and a second gear (18) are sequentially arranged on the rotating shaft (16);

a first rack (19) arranged on the connecting piece (4), wherein the first rack (19) is meshed with the first gear (17); and

a second rack (20) arranged on the oscillating piece (12) parallel to the first rack (19), the second rack (20) being engaged with the second gear (18).

8. The cutting control device of the full-automatic wrapping machine diaphragm according to claim 7, characterized in that the first gear (17) and the second gear (18) have the same number of teeth, and the outer diameter of the second gear (18) is larger than that of the first gear (17).

9. The severing control device of a web of wrapping film according to claim 7, characterized in that said connecting element (4) is a flexible element.

Background

In the production process of the existing woven bag or other woven films, a long flat cylinder or a bag roll is adopted after weaving is finished, the coiled woven bag or woven film needs to be cut off firstly in the production process, and when the woven bag drum or the woven film drum is cut off and fed, the mode of knife cutting is generally adopted, but the falling of the woven film after knife cutting easily pollutes high-white fibers or sanitary cotton, and burrs can be generated due to untimely treatment after cutting off.

Therefore, at present, a person skilled in the art needs to design a cutting control device for a full-automatic wrapping machine wrapping film to prevent the woven film from falling off to pollute the high-whiteness fibers or the sanitary napkins.

Disclosure of Invention

The invention provides a cutting control device of a full-automatic packer diaphragm, which solves the problem that the falling of a braided film causes pollution to high-whiteness fibers or sanitary cotton in the prior art.

The technical scheme of the invention is as follows:

the cutting-off control device of the full-automatic packaging machine surrounding membrane comprises

A mounting frame;

one end of the resistance wire is connected with the mounting frame through a first insulator;

the elastic piece is used for providing force for changing the position of the other end of the resistance wire;

the switch directly or indirectly drives the switch to act after the position of the other end of the resistance wire is changed; and

and the controller is connected with the switch and the resistance wire.

Further, the switch is a proximity switch, and the switch also comprises

One end of the connecting piece is connected with the other end of the resistance wire through a second insulating piece, and the connecting piece is driven to move when the position of the other end of the resistance wire is changed; and

the swinging piece is arranged on the mounting rack, the connecting piece drives the swinging piece to swing when moving, and one end of the swinging piece is close to or far away from the switch after swinging.

Further, also comprises

A mutual inductance detector comprising

The mutual inductance coil is sleeved outside any connecting wire; and

and the signal converter is connected with the mutual inductance coil and used for detecting the current of the resistance wire.

Furthermore, the resistance wire is a nickel-chromium resistance wire with the diameter of.mm, and the voltage of the controller is below V.

Furthermore, the heating temperature of the resistance wire during working is between the temperature and the DEG C.

Further, the signal converter is connected with the controller.

Further, also comprises

A secondary amplification mechanism comprising

The rotating shaft is rotatably arranged on the mounting rack, and a first gear and a second gear are sequentially arranged on the rotating shaft;

the first rack is arranged on the connecting piece and is meshed with the first gear; and

and the second rack is arranged on the swinging piece and is parallel to the first rack, and the second rack is meshed with the second gear.

Further, the number of teeth of the first gear is the same as that of the second gear, and the second gear is larger than the outer diameter of the first gear.

Further, the connecting piece is a flexible piece.

The working principle and the beneficial effects of the invention are as follows:

(1) the controller connecting wire and the resistance wire form a closed electric loop, when the controller is loaded with voltage, current passes through the resistance wire to generate heat, so that the resistance wire generates heat, the woven bag or the woven film close to the resistance wire is subjected to thermal cutting along the resistance wire, the trimming edge of the woven bag or the woven film is subjected to thermal melting reconnection, and the thermal cutting avoids burrs generated by knife cutting, so that the notch is neat and firm, and the trimming edge is prevented from being loose; the resistance wire is extended after heating, and the elastic part contracts, so that the resistance wire is always kept tensioned and straightened under the restoring force of the elastic part, and the smoothness of the trimming edge is ensured.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic rear view of the structure of embodiment 2 of the present invention;

in the figure: 1. mounting bracket, 2, suspension portion, 3, fixed part, 4, connecting piece, 5, resistance wire, 61, first insulator, 62, second insulator, 7, elastic component, 8, controller, 9, connecting wire, 11, switch, 12, swinging piece, 13, mutual inductance detector, 14, mutual inductance coil, 15, signal converter, 16, pivot, 17, first gear, 18, second gear, 19, first rack, 20, second rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall be included within the scope of protection of the present invention.

Example 1

As shown in fig. 1, the cutting control device of the full-automatic wrapping machine diaphragm comprises a mounting frame 1; one end of the resistance wire 5 is connected with the mounting frame 1 through a first insulator 61; the elastic part 7 is used for providing force for changing the position of the other end of the resistance wire 5; the switch 11 is directly or indirectly driven to act after the position of the other end of the resistance wire 5 is changed; and the controller 8 is connected with the switch 11 and the resistance wire 5.

In the embodiment, in order to solve the problem that the woven membrane falls off to pollute the high-whiteness fibers or the sanitary napkins in the prior art, the cutting control device of the full-automatic wrapping machine diaphragm comprises a mounting frame 1, wherein the mounting frame 1 is provided with a suspension part 2 and a fixing part 3; now connect resistance wire 5 and elastic component 7 in proper order, wherein one end of resistance wire 5 is connected with fixed part 3 through first insulator 61, elastic component 7 is the tension spring, controller 8, connecting wire 9 and resistance wire 5 form a closed electric loop, after the loading voltage of controller 8, there is electric current to pass through in the resistance wire 5, produce the heat, make resistance wire 5 generate heat, will be close to the braided bag or braided membrane of resistance wire 5 and carry out the thermal cutoff along resistance wire 5, the side cut of braided bag or braided membrane carries out the hot melt and reconnects, the thermal cutoff has avoided the deckle edge that the knife cut produced, make the incision neat, firm, avoid cutting edge loose; resistance wire 5 becomes soft after generating heat, exceeds the uniform temperature after, the resistance of resistance wire 5 is overcome to the restoring force of elastic component 7 for resistance wire 5 extends under the restoring force of elastic component 7, keeps resistance wire 5 tensioning to straighten throughout, has guaranteed that the level and smooth of side cut is straight in the same direction as.

As shown in fig. 1, the switch 11 is a proximity switch, and further includes a connecting member 4, one end of the connecting member is connected to the other end of the resistance wire 5 through a second insulating member 62, and when the position of the other end of the resistance wire 5 is changed, the connecting member 4 is driven to move; and the swinging piece 12 is arranged on the mounting rack 1, the connecting piece 4 drives the swinging piece 12 to swing when moving, and one end of the swinging piece 12 is close to or far away from the switch 11 after swinging.

In this embodiment, in order to achieve the purpose of controlling the cutting, and simultaneously overcome the problem that the resistance wire 5 is overheated to carbonize the cut-off of the woven bag or the woven film, the connecting member 4 is connected between the resistance wire 5 and the elastic member 7, the connecting member 4 is a flexible member such as a steel wire rope, one end of the resistance wire 5 is connected with the fixing portion 3 through the first insulator 61, and the other end is connected with the connecting member 4 through the second insulator 62, wherein the connecting member 4 is movably hung on the hanging portion 2, and the swinging member 12 is connected with the connecting member 4, when the resistance wire 5 is overheated, that is, the temperature of the resistance wire 5 is greater than 500 ℃, the resistance wire 5 extends under the restoring force of the elastic member 7, so that the connecting member 4 moves, the connecting member 4 drives the swinging member 12 to rotate around the hinge point of the swinging member 12 and the mounting bracket 1, so that the swinging member 12 is separated from the switch 11 after rotating, and the distance from the connecting member 4 to the hinge point of the swinging member 12 and the mounting bracket 1 is smaller than the distance from the switch 11 to the hinge point of the swinging member 12 and the mounting bracket 1 The distance, namely the swinging piece 12 is a lever, so that the movement of the connecting piece 4 is amplified by the swinging piece 12 and then transmitted to the switch 11, the switch 11 transmits a signal to the controller 8, the controller 8 comprises a control cabinet and an automatic voltage regulator, the switch 11 transmits the signal to the control cabinet, the control cabinet controls the automatic voltage regulator to automatically reduce the voltage so as to reduce the power of the resistance wire 5, the temperature of the resistance wire 5 is reduced to 400-500 ℃, and the woven bag or the woven film is prevented from being burnt and carbonized at a high temperature of more than 500 ℃ so as to influence the toughness and quality of the woven bag; the distance a between the connecting point of the swinging piece 12 and the connecting piece 4 and the hinge point of the swinging piece 12 and the mounting rack 1 is smaller than the distance b between the hinge point of the swinging piece 12 and the mounting rack 1 and the free end (the switch 11) of the swinging piece, and the a: b is smaller than 1:2, so that the moving distance of the connecting piece 4 is amplified through the free end of the swinging piece 12, the opening and the closing of the switch 11 are obviously changed, and the automatic cut-off is realized.

As shown in fig. 1, the distance between the joint of the swing member 12 and the mounting frame 1 and the connecting member 4 is smaller than the distance between the swing member and the switch 11.

In this embodiment, when not powered on, the restoring force of the elastic member 7 is smaller than the pulling force of the resistance wire 5, so that the connection point of the swinging member 12 and the connecting member 4 is deflected to the resistance wire 5, and the switch 11 is in an open state; then after electrifying, the resistance wire 5 is heated to 400-500 ℃, the tension force of the resistance wire 5 is equal to the restoring force of the elastic part 7, so that the swinging part 12 is in a vertical state, and the switch 11 is in a closed state; when the temperature of the resistance wire 5 is higher than 500 ℃, the pulling force of the resistance wire 5 is smaller than the restoring force of the elastic part 7, so that the connection point of the swinging part 12 and the connecting part 4 deflects towards the elastic part 7, the heating state of the resistance wire 5 can be observed through the deflection direction of the swinging part 12, the operation is simple, direct and rapid, and then the voltages at the two ends of the resistance wire 5 are rapidly adjusted according to the deflection direction of the swinging part 12, so that the operation is simple.

As shown in fig. 1, the transformer device further comprises a mutual inductance detector 13, wherein the mutual inductance detector 13 comprises a mutual inductance coil 14, and is sleeved outside any one of the connecting wires 9; and the signal converter 15 is connected with the mutual inductance coil 14 and used for detecting the current of the resistance wire 5 and transmitting a signal to the controller 8.

In this embodiment, a connection line 9 between the resistance wire 5 and the controller 8 passes through the mutual inductor 14, the mutual inductor 14 is used for monitoring the current passing through the resistance wire 5, calculating the power of the resistance wire 5 according to a set current value, judging whether the power reaches the heating temperature of 400 ℃ -500 ℃, transmitting a signal to the controller 8 through the signal converter 15, and the controller 8 adjusting the voltage of the resistance wire 5 to change the current passing through the resistance wire 5.

As shown in fig. 1, the resistance wire 5 is a nickel-chromium resistance wire with a diameter of 0.8mm, and the voltage of the controller 8 is below 48V.

In the embodiment, the 0.8mm nickel-chromium resistance wire is high-temperature resistant and not easy to break, so that the cutting port of the woven bag or the woven film is 0.8mm, the cutting waste caused by the woven bag or the woven film is avoided, and the production cost is greatly saved; and the voltage is controlled below 48V, so that the production cost is further saved.

As shown in figure 1, the heating temperature of the resistance wire 5 is 400-500 ℃ when in work.

In the embodiment, the heating temperature of the resistance wire 5 in the working process is 400-500 ℃, so that the woven bag or the woven film is welded after the cut is rapidly broken at the temperature, and the condition that the cut drawing phenomenon is caused by the temperature being lower than 400 ℃ to influence the cut quality or the cut drawing adhesion pollutes the high-whiteness fiber or the sanitary napkin is avoided; meanwhile, the braided film near the fracture is prevented from being carbonized or burnt due to the temperature of more than 500 ℃, and the toughness, the quality and the service life of the braided bag or the braided film are influenced.

As shown in fig. 1, the signal converter 15 is connected to the controller 8.

In this embodiment, the signal converter 15 is connected with the control cabinet of the controller 8, and after the signal converter 15 transmits the signal to the control cabinet, the control cabinet controls the automatic voltage regulator to regulate the voltage.

Example 2

As shown in fig. 1 to 2, on the basis of having all the technical features of embodiment 1, the present invention further includes a second-stage amplification mechanism, wherein the second-stage amplification mechanism includes a rotating shaft 16 rotatably disposed on the mounting bracket 1, and the rotating shaft 16 is sequentially provided with a first gear 17 and a second gear 18; a first rack 19, which is arranged on the connecting piece 4, wherein the first rack 19 is meshed with the first gear 17; and a second rack 20 provided on the oscillating member 12 in parallel with the first rack 19, the second rack 20 being engaged with the second gear 18.

In this embodiment, after the connecting member 4 moves, the first rack 19 is driven to move, the first rack 19 moves to drive the first gear 17 to rotate, the rotation of the first gear 17 is transmitted to the second gear 18 through the rotating shaft 16, so that the second gear 18 drives the second rack 19 to move, the second rack 19 drives the swinging member 12 to swing, the movement of the connecting member 4 is converted into the swing of the swinging member 12, and the switch 11 is turned on and off.

As shown in fig. 1 to 2, the first gear 17 and the second gear 18 have the same number of teeth, and the outer diameter of the second gear 18 is larger than the outer diameter of the first gear 17.

In this embodiment, the outer diameter of the second gear 18 is larger than the outer diameter of the first gear 17, so that the path along which the first rack 19 drives the first gear 18 to rotate is smaller than the path along which the second gear 18 drives the second rack 20 to rotate, the movement of the connecting member 4 is amplified, the swinging of the swinging member 12 is obvious, and the accurate opening and closing of the switch 11 is realized; the situation that the swing angle of the swing piece 12 is not obvious due to the fact that the moving distance of the moving piece 4 is too small, and the opening and closing of the switch 11 cannot be achieved is avoided.

As shown in fig. 1 to 2, the connecting member 4 is a flexible member.

In this embodiment, the connecting piece 4 is a flexible piece, has toughness, and is wire rope etc. and avoid the connecting piece 4 to collide with the mounting bracket 1 in the slip process and stumble and influence the life of the swinging piece 12.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.