A high-speed chain-joining mechanism for zippers

Abstract

The present invention belongs to the field of zipper machines and relates to a high-speed chain-joining mechanism of a zipper, comprising a chain belt traction device and two chain-joining channels, wherein the two chain-joining channels are respectively a block chain-joining channel and a latch chain-joining channel, an upper slider device is arranged below the two chain-joining channels, the block chain-joining channel is provided with a block fixing device, the latch chain-joining channel is provided with a latch chain-joining advancing device, a latch chain-joining side pushing device and a latch chain-joining retreating device; the upper slider device comprises an upper slider mold, an upper and lower slider cylinder which moves up and down with the upper slider mold, and a front and rear slider cylinder which drives the upper slider mold to move forward and backward; a stopper needle is arranged on the side of the upper slider mold which faces the latch chain-joining side pushing device, and a stopper needle cylinder which drives the stopper needle to move up and down, and the stopper needle is blocked on the side of the slider fixing position; the device has the advantages of simplifying the chain-joining process and improving the chain-joining speed.

Description

Technical Field

[0001] The invention belongs to the field of zipper machines and relates to a high-speed chain-joining mechanism of a zipper. Technical Background

[0002] The zipper threading machine is a device used to load the slider into the chain belt and automatically produce a complete zipper. The equipment needs to first transport the slider to the upper slider mold, and then transport it to the chain belt channel through the upper slider mold, and complete the action of threading the chain belt slider through a series of actions.

[0003] After the pull head is inserted into the sub-chain with the square, it needs to be chained together with the sub-chain with the pin. The traditional chaining process is complicated and the production efficiency is low. Summary of the invention

[0004] In view of the above problems, the present invention provides a high-speed chain-joining mechanism for a zipper, which has the advantages of simplifying the chain-joining process and improving the chain-joining speed.

[0005] The object of the present invention is achieved in that:

[0006] A high-speed chain paralleling mechanism of a zipper, comprising a chain belt pulling device and two chain dividing channels, the two chain dividing channels are respectively a block chain dividing channel and a latch chain dividing channel, an upper pull head device is arranged below the two chain dividing channels, a block fixing device is arranged on the block chain dividing channel, and a latch chain dividing channel is provided with a latch chain dividing forward device, a latch chain dividing side pushing device and a latch chain dividing backward device;

[0007] The upper slider device comprises an upper slider mold, a slider upper and lower cylinder that moves the upper slider mold up and down, and a slider front and rear cylinder that drives the upper slider mold to move forward and backward; a slider fixing position is provided at the upper end of the upper slider mold, a latch chain advancing device is arranged in front of the upper slider mold, a latch chain side pushing device is arranged on the side of the upper slider mold away from the block chain, and a latch chain retreating device is arranged at the rear of the upper slider mold;

[0008] A stopper needle and a stopper needle cylinder for driving the stopper needle to move up and down are arranged on one side of the upper slider mold facing the latch chain-distributing side-pushing device, and the stopper needle is stopped at the side of the slider fixing position.

[0009] In order to prevent the chain belt of the latch chain from entering the pull head, the traditional chain paralleling device adopts the following process: first, the latch chain advancing device advances the latch chain to move the latch pin to the front of the pull head, and then the latch chain side pushing device raises, pushes sideways and lowers the latch chain to align the latch pin with the socket of the pull head. Through the process of chain raising, pushing sideways and lowering, the chain belt in front of the latch pin is deformed by the knife edge and stuck above the pull head, so that the chain belt will not enter the pull head; finally, the latch chain retracting device retracts the latch chain to insert the latch pin into the pull head and the block. Such procedures are complicated and the production speed is slow.

[0010] Through the setting of the stop pin, when the pin chain side pushing device pushes the pin chain into the pull head, the stop pin blocks the chain belt behind the pin to prevent the chain belt from following the pin into the pull head and getting stuck, or the pin cannot be inserted into place; in this way, the pin chain side pushing device does not need to rise and fall processes, which greatly improves the production speed.

[0011] The protruding end of the needle stopper cylinder protrudes upward and is fixed with a needle stopper seat, the needle stopper is rotatably arranged on the needle stopper seat, the lower end of the needle stopper is also provided with a sensing strip, and a sensing strip sensing switch is fixed on the upper pull head mold.

[0012] Through the above settings, the pin chain side pushing device pushes the pin sideways to the rear of the pull head socket, and then the pin chain retreat device drives the pin chain retreat to insert the pin into the socket; at this time, the pin chain retreats to drive the stop pin to swing, and the induction switch senses the swing of the induction bar, then controls the stop pin cylinder to retract the stop pin to its original position.

[0013] The center of gravity of the stopper needle is arranged in front of the rotation axis, a positioning block is arranged at the front of the stopper needle seat, and a positioning groove matching the positioning block is formed on the front end surface of the middle part of the stopper needle.

[0014] Through the above arrangement, after the stopper needle is raised, it will always rotate forward due to the center of gravity without external force, so the stopper needle and the positioning block will counteract each other, so that the stopper needle can maintain a stable state.

[0015] A limited rotation shaft is also fixed on the stop needle, and the limited rotation shaft is arranged above the stop needle seat, and the upper end portion of the stop needle seat is the limited rotation portion.

[0016] The setting of the rotation limiting shaft can prevent the belt from deviating too much at an angle when the blocking needle is chained and retracted by the latch pin, thereby affecting the resetting of the blocking needle.

[0017] The induction switch is arranged below the stopper needle, the upper end surface of the induction switch is a plane, and the lower end surface of the stopper needle is a plane. When the stopper needle cylinder retracts, the two planes fit together, so that the stopper needle rotates and returns to a vertical state.

[0018] The stopper needle is arranged on the side of the connection between the pull head and the block.

[0019] Through the above settings, since the connection between the slider and the block is the place most likely to get stuck, setting it here can better prevent jamming.

[0020] The block positioning device comprises a block induction switch, a positioning seat and a positioning cylinder arranged behind the upper slider mold; the positioning cylinder extends to drive the positioning seat to abut against the rear end surface of the block.

[0021] The latch chain advancing device includes a belt-passing plate, a pressure plate, a clamping cylinder and an advancing power. A fixed seat is fixed at the lower end of the belt-passing plate, the clamping cylinder is fixed on the fixed seat, the protruding end of the clamping cylinder extends upward and is fixedly connected to the pressure plate, and the fixed seat and the advancing power are fixedly connected.

[0022] The latch chain side push device comprises a latch push plate and a latch push plate cylinder arranged on the side of the upper slider mold. The latch push plate opens toward the upper slider mold, and the opening is a latch chain slot that matches the latch chain.

[0023] The pin-chain retraction device includes a retraction cylinder, a retraction seat, an upper splint, a lower splint and a splint cylinder. The retraction cylinder is fixed on the bracket, and the protruding end of the retraction cylinder is fixedly connected to the retraction seat. The lower splint is fixed to the upper end of the retraction seat, and the splint cylinder is fixed to the lower end of the retraction seat. The protruding end of the splint cylinder extends upward and is fixedly connected to the upper splint. The splint cylinder drives the upper splint to move up and down and clamps the lower splint.

[0024] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: through the setting of the stop pin, when the latch chain side pushing device pushes the latch chain into the pull head, the stop pin blocks the chain belt behind the latch, thereby preventing the chain belt from following the latch into the pull head and getting stuck, or the latch cannot be inserted into place; in this way, the latch chain side pushing device does not need the rising and falling processes, thereby greatly improving the production speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural diagram of the chain machine.

[0027] Figure 2 This is a schematic diagram of the structure of the chain paralleling machine after removing the traction device.

[0028] Figure 3 It is a schematic diagram of the structure of the side push device, the upper pull head device and the block fixing device.

[0029] Figure 4 It is a structural schematic diagram of the upper pull head device.

[0030] Figure 5 It is a structural schematic diagram of the upper pull head device when the blocking needle rises.

[0031] Figure 6It is a structural schematic diagram of the upper pull head device when the stop needle is reset.

[0032] Figure 7 It is a schematic diagram of the structure of the latch chain advancing device.

[0033] Figure 8 It is a schematic diagram of the structure of the latch chain side thrust device.

[0034] Fig. 9 It is a schematic diagram of the structure of the latch chain retreat device.

[0035] Fig.10 Schematic diagram of the chain belt structure.

[0036] 1-chain belt traction device; 2-block chain channel; 3-pin chain channel;

[0037] 4-upper slider device; 41-upper slider mold; 42-upper and lower cylinders; 43-front and rear slider cylinders; 44-slider fixing position; 45-needle stopper; 46-needle stopper cylinder; 47-needle stopper seat; 48-sensor bar; 49-sensor bar induction switch; 410-positioning block; 411-positioning slot; 412-limiting shaft;

[0038] 5-block fixing device; 51-block induction switch; 52-positioning seat; 53-positioning cylinder;

[0039] 6-pin chain forward device; 61-belt plate; 62-pressing plate; 63-pressing cylinder; 64-forward power; 65-fixing seat; 66-long chain clamp;

[0040] 7- latch chain side push device; 71- latch push plate; 72- latch push plate cylinder; 73- latch chain slot;

[0041] 8-pin split chain retreat device; 81-retreat cylinder; 82-retreat seat; 83-upper clamp; 84-lower clamp; 85-clamp cylinder;

[0042] 9-pull head; 91-pull head latch;

[0043] 10-chain belt; 101-block sub-chain; 102-pin sub-chain; 103-block; 104-pin; 105-upper stop; 106-bevel; 107-knife edge; 108-chain tooth; 109-transition section; 110-cloth belt. DETAILED DESCRIPTION

[0044] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0045] Figure 2 The right side is the front of the equipment running direction.

[0046] A high-speed chain paralleling mechanism of a zipper, comprising a chain belt pulling device 1 and two chain dividing channels, the two chain dividing channels are respectively a block chain dividing channel 2 and a latch chain dividing channel 3, an upper pull head device 4 is arranged below the two chain dividing channels, a block fixing device 5 is arranged on the block chain dividing channel, and a latch chain dividing channel is provided with a latch chain dividing forward device 6, a latch chain dividing side pushing device 7 and a latch chain dividing backward device 8;

[0047] The upper slider device 4 includes an upper slider mold 41, a slider upper and lower cylinder 42 that moves the upper slider mold up and down, and a slider front and rear cylinder 43 that drives the upper slider mold to move forward and backward; a slider fixing position 44 is provided at the upper end of the upper slider mold, a latch chain advancing device 6 is arranged in front of the upper slider mold 41, a latch chain side pushing device 7 is arranged on the side of the upper slider mold 41 away from the block chain, and a latch chain retreating device 8 is arranged at the rear of the upper slider mold;

[0048] A stopper needle 45 and a stopper cylinder 46 for driving the stopper needle 45 to move up and down are provided on one side of the upper slider mold 41 facing the latch chain side push device, and the stopper needle 45 is blocked at the side of the slider fixing position 44.

[0049] By setting the stop pin 45, when the latch chain side pushing device pushes the latch chain into the slider, the stop pin 45 blocks the cloth bag 110 behind the latch 104, preventing the cloth bag 110 from following the latch 104 into the slider 9 and getting stuck, or the latch 104 cannot be inserted into place; in this way, the latch chain side pushing device does not need to go up and down, which greatly improves the production speed.

[0050] The protruding end of the needle stopper cylinder 46 protrudes upward and is fixed with a needle stopper seat 47 , the needle stopper 45 is rotatably arranged on the needle stopper seat 47 , the lower end of the needle stopper 45 is also provided with a sensor strip 48 , and a sensor strip induction switch 49 is fixed on the upper slider mold 41 .

[0051] Through the above arrangement, the pin chain side pushing device pushes the pin 104 sideways to the rear of the slider pin opening 91, and then the pin chain retreating device drives the pin chain 102 retreating, so that the pin 104 is inserted into the slider pin opening 91; at this time, the pin chain 102 retreats to drive the stop pin 45 to swing, and the induction switch 49 senses the swing of the induction bar 48, and then controls the stop pin cylinder 46 to retract the stop pin 45 to its original position.

[0052] The center of gravity of the stopper needle 45 is arranged in front of the rotation axis. A positioning block 410 is arranged in front of the stopper needle seat 47 . A positioning groove 411 matching the positioning block 410 is formed on the front end surface of the middle part of the stopper needle 45 .

[0053] Through the above arrangement, after the stopper needle 45 is raised, it will always rotate forward due to the center of gravity without external force, so the stopper needle 45 and the positioning block 410 are against each other, so that the stopper needle 45 can maintain a stable state.

[0054] The stopper needle 45 is also fixed with a limited rotation shaft 412 , which is disposed above the stopper needle seat 47 , and the upper end of the stopper needle seat 47 is a limited rotation portion.

[0055] The setting of the rotation limiting shaft 412 can prevent the belt from deviating too much from the angle when the blocking needle is chained and retracted by the latch pin, thereby affecting the reset of the blocking needle.

[0056] The induction switch 49 of the induction strip is arranged below the stopper needle 45. The upper end surface of the induction switch 49 is a plane, and the lower end surface of the stopper needle 45 is a plane. When the stopper needle cylinder retracts, the two planes fit together, so that the stopper needle 45 rotates and returns to a vertical state.

[0057] The stopper needle 45 is arranged on the side of the connection between the slider 9 and the block 103 .

[0058] Through the above settings, since the connection between the slider and the block is the place most likely to get stuck, setting it here can better prevent jamming.

[0059] The block positioning device 5 includes a block sensing switch 51 , a positioning seat 52 and a positioning cylinder 53 arranged behind the upper slider mold 41 . The positioning cylinder 53 extends to drive the positioning seat 52 to abut against the rear end surface of the block 103 .

[0060] The latch chain advancing device 6 includes a belt-passing plate 61, a pressure plate 62, a clamping cylinder 63 and a forward driving force 64 (the forward driving force of this embodiment is a linear module, which shares a set of linear modules with the long chain clamp). A fixed seat 65 is fixed at the lower end of the belt-passing plate 61, and the clamping cylinder 63 is fixed on the fixed seat 65. The protruding end of the clamping cylinder 63 protrudes upward and is fixedly connected to the pressure plate 62. The fixed seat 65 and the forward driving force 64 are fixedly connected.

[0061] The latch chain side push device 7 includes a latch push plate 71 and a latch push plate cylinder 72 arranged on the side of the upper slider mold 41. The latch push plate 71 opens toward the upper slider mold, and the opening is a latch chain groove 73 that matches the latch chain 102.

[0062] The pin-chain retraction device 8 includes a retraction cylinder 81, a retraction seat 82, an upper clamping plate 83, a lower clamping plate 84 and a clamping plate cylinder 85. The retraction cylinder 81 is fixed on the bracket, and the protruding end of the retraction cylinder 81 is fixedly connected to the retraction seat 82. The lower clamping plate 84 is fixed to the upper end of the retraction seat 82. The clamping plate cylinder 85 is fixed to the lower end of the retraction seat 82. The protruding end of the clamping plate cylinder 85 extends upward and is fixedly connected to the upper clamping plate 83. The clamping plate cylinder 85 drives the upper clamping plate 83 to move up and down and clamps with the lower clamping plate 84.

[0063] Working principle:

[0064] In order to prevent the chain belt of the latch chain from entering the pull head, the traditional chain paralleling device adopts the following process: first, the latch chain advancing device advances the latch chain to move the latch pin to the front of the pull head, and then the latch chain side pushing device raises, pushes sideways and lowers the latch chain to align the latch pin with the socket of the pull head. Through the process of chain raising, pushing sideways and lowering, the chain belt in front of the latch pin is deformed by the knife edge and stuck above the pull head, so that the chain belt will not enter the pull head; finally, the latch chain retracting device retracts the latch chain to insert the latch pin into the pull head and the block. Such procedures are complicated and the production speed is slow.

[0065] And the working principle of the present invention is:

[0066] 1. First, the block chain 101 has been threaded with the pull head 9 by the chain threading machine. At this time, the chain moves forward. When the block sensing switch 51 senses the block 101, the positioning cylinder 53 controls the positioning seat 52 to move toward the block 101, so that the positioning seat 52 abuts against the rear end of the block 101 to fix the block 101;

[0067] 2. Then the forward pressing plate 62 presses the latch chain 102 and drives the latch chain 102 to move forward a short distance, so that the latch 104 moves forward to the front of the pull head 9;

[0068] 3. Then the needle stopper cylinder 46 drives the needle stopper 45 to move up to the side of the slider 9. The most ideal position is on the side where the slider 9 and the block 103 are connected to prevent the cloth bag 110 from following the latch 104 into the slider 9 and the block 103 when the latch chain 102 is pushed sideways.

[0069] 4. Then the latch push plate 71 moves the latch chain 102 arranged on the side of the slider closer to the slider, so that the latch 104 moves to the rear of the slider latch opening 91, and the latch 104 is aligned with the latch opening 91 of the slider. At this time, due to the existence of the blocking needle 45, the cloth bag 440 behind the latch 104 is blocked and will not enter the slider and the block;

[0070] 5. While pushing sideways, the forward pressing plate 62 releases the latch chain 102 to reset, and then the upper clamping plate 83 of the latch chain retracting device clamps the latch chain 103 to move the latch chain 102 backward, and the latch 104 on the latch chain is inserted into the pull head 9 and the block 103;

[0071] 6. When the latch chain 102 moves backward, the moving chain belt drives the stopper needle 45 to rotate. The sensor switch 49 senses the displacement of the stopper needle 45, and controls the stopper needle cylinder 46 to drive the stopper needle 45 to move downward and reset. The latch push plate 71 moves back and resets, and the positioning seat 52 also resets.

[0072] 7. Then the front and rear cylinders 43 of the slider drive the upper slider mold 41 to move forward, so that the slider 9 and the block 103 are separated to complete the first distance of chain connection, and then the traction mechanism drives the chain belt to continue to move forward to the set position, and the long chain clamp 66 extends and moves forward to complete the long distance chain connection. (Long distance chain connection is not necessary, and it is determined whether it is needed according to the length of the chain connection)

[0073] The invention has the characteristics of being able to simplify the chain paralleling process and improve the chain paralleling speed.

[0074] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed chain-joining mechanism for a zipper, comprising a chain belt traction device and two chain-joining channels, wherein the two chain-joining channels are a block chain-joining channel and a latch chain-joining channel, and characterized in that: An upper pull head device is provided below the two chain-dividing channels, a block fixing device is provided on the block chain-dividing channel, and a latch chain-dividing forward device, a latch chain-dividing side push device and a latch chain-dividing backward device are provided on the latch chain-dividing channel; The upper slider device comprises an upper slider mold, a slider upper and lower cylinder that moves the upper slider mold up and down, and a slider front and rear cylinder that drives the upper slider mold to move forward and backward; a slider fixing position is provided at the upper end of the upper slider mold, a latch chain advancing device is arranged in front of the upper slider mold, a latch chain side pushing device is arranged on the side of the upper slider mold away from the block chain, and a latch chain retreating device is arranged at the rear of the upper slider mold; A stopper needle and a stopper needle cylinder for driving the stopper needle to move up and down are arranged on one side of the upper slider mold facing the latch chain-distributing side-pushing device, and the stopper needle is stopped at the side of the slider fixing position.

2. A high-speed zipper paralleling mechanism according to claim 1, characterized in that: The protruding end of the needle stopper cylinder protrudes upward and is fixed with a needle stopper seat, the needle stopper is rotatably arranged on the needle stopper seat, the lower end of the needle stopper is also provided with a sensing strip, and a sensing strip sensing switch is fixed on the upper pull head mold.

3. A high-speed zipper paralleling mechanism according to claim 2, characterized in that: The center of gravity of the stopper needle is arranged in front of the rotation axis, a positioning block is arranged at the front of the stopper needle seat, and a positioning groove matching the positioning block is formed on the front end surface of the middle part of the stopper needle.

4. A high-speed chain-joining mechanism for a zipper according to claim 2 or 3, characterized in that: A limited rotation shaft is also fixed on the stop needle, and the limited rotation shaft is arranged above the stop needle seat, and the upper end portion of the stop needle seat is the limited rotation portion.

5. A high-speed zipper paralleling mechanism according to claim 4, characterized in that: The induction switch is arranged below the stopper needle, the upper end surface of the induction switch is a plane, and the lower end surface of the stopper needle is a plane. When the stopper needle cylinder retracts, the two planes fit together, so that the stopper needle rotates and returns to a vertical state.

6. The high-speed chain-joining mechanism of a zipper according to claim 1, characterized in that: The stopper needle is arranged on the side of the connection between the pull head and the block.

7. The high-speed chain-joining mechanism of a zipper according to claim 1, characterized in that: The block fixing device comprises a block sensing switch, a block sensing switch, a positioning seat and a positioning cylinder arranged behind the upper slider mold, and the positioning cylinder extends to drive the positioning seat to abut against the rear end surface of the block.

8. The high-speed chain-joining mechanism of a zipper according to claim 1, characterized in that: The latch chain advancing device includes a belt-passing plate, a pressure plate, a clamping cylinder and an advancing power. A fixed seat is fixed at the lower end of the belt-passing plate, the clamping cylinder is fixed on the fixed seat, the protruding end of the clamping cylinder extends upward and is fixedly connected to the pressure plate, and the fixed seat and the advancing power are fixedly connected.

9. The high-speed chain-joining mechanism of a zipper according to claim 1, characterized in that: The latch chain side push device comprises a latch push plate and a latch push plate cylinder arranged on the side of the upper slider mold. The latch push plate opens toward the upper slider mold, and the opening is a latch chain slot that matches the latch chain.

10. The high-speed chain-joining mechanism of a zipper according to claim 1, characterized in that: The pin-chain retraction device includes a retraction cylinder, a retraction seat, an upper splint, a lower splint and a splint cylinder. The retraction cylinder is fixed on the bracket, and the protruding end of the retraction cylinder is fixedly connected to the retraction seat. The lower splint is fixed to the upper end of the retraction seat, and the splint cylinder is fixed to the lower end of the retraction seat. The protruding end of the splint cylinder extends upward and is fixedly connected to the upper splint. The splint cylinder drives the upper splint to move up and down and clamps the lower splint.

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