Automatic zipper threading device

Abstract

The utility model discloses an automatic zipper penetrating device which comprises a working table, a zipper feeding device, a zipper cutting device, a zipper head clamping device, a zipper head conveying device and a zipper tearing device. The zipper feeding device, the zipper cutting device, the zipper head clamping device, the zipper head conveying device and the zipper tearing device are sequentially installed on the working table from front to back. The zipper puller limiting piece is located over the zipper puller clamping device, the conveying mechanism is installed on the workbench, and the zipper tearing device is installed on the conveying mechanism; a mounting groove is formed in the workbench, a lifting mechanism is arranged in the mounting groove, and the lifting mechanism is connected with the zipper puller clamping device; a zipper head is conveyed into the zipper head clamping device through the zipper head conveying device, the lifting mechanism drives the zipper head clamping device to move upwards, and the zipper head is clamped between the zipper head limiting piece and the zipper head clamping device. A zipper enters through the zipper feeding device, the zipper tearing device moves forwards to clamp the zipper and then is pulled out, the zipper is torn through the cam structure and penetrates into a zipper head, and finally the zipper cutting device cuts off the zipper in an ultrasonic vibration mode.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, in particular to an automatic zipper threading device. Background Art

[0002] As a common item in our daily life, a zipper is usually widely used on clothing, quilt covers, and bags. A zipper generally consists of two cloth tapes, a chain tooth tape, and a zipper head. The chain tooth tape is located inside the cloth tapes and is formed by meshing of the chain teeth. The zipper is closed or opened by the zipper head.

[0003] However, in the production process, the zipper head usually needs to be manually threaded by workers. When manually threading the zipper, the zipper head needs to be calibrated, which is rather troublesome for workers and has obvious pain points. Moreover, the production efficiency is relatively low, which is not convenient for large-scale production by manufacturers. There are also utility model automatic zipper threading machines on the market, but there are different types and models of zippers and zipper heads on the market, and the existing automatic zipper threading machines cannot be universally compatible with different models of zipper heads and zippers. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an automatic zipper threading device. To solve the above technical problems, the utility model provides the following technical solutions.

[0005] An automatic zipper threading device includes a workbench, and a zipper feeding device, a zipper cutting device, a zipper head clamping device, a zipper head conveying device, and a zipper tearing device which are sequentially installed on the workbench from front to back. The zipper feeding device, the zipper cutting device, the zipper head clamping device, and the zipper tearing device are in the same horizontal direction, and the zipper head conveying device is located on one side of the zipper head clamping device.

[0006] It further includes a zipper head limiting member located directly above the zipper head clamping device and a conveying mechanism installed on the workbench. The zipper tearing device is installed on the conveying mechanism and realizes forward and backward displacement through the conveying mechanism. An installation groove is provided on the workbench, and a lifting mechanism is arranged in the installation groove. The lifting mechanism is connected to the zipper head clamping device.

[0007] The zipper feeding device is used for feeding the zipper.

[0008] The zipper head conveying device is used for feeding the zipper head to the top of the zipper head clamping device.

[0009] The zipper head clamping device clamps the zipper head and realizes upward displacement through the lifting mechanism, and clamps the zipper head between the zipper head limiting member and the zipper head clamping device.

[0010] The zipper tearing device realizes displacement through the conveying mechanism, clamps the zipper when moving forward, pulls out the zipper, tears the zipper and threads it into the zipper head.

[0011] The described zipper cutting device cuts the zipper by means of ultrasonic vibration.

[0012] Furthermore, the zipper head conveying device includes a blanking mechanism, a feeding cylinder, and a rotatable fixture. The fixture is used to clamp the zipper head that falls into the blanking mechanism, and drives the fixture to displace through the feeding cylinder and send the zipper head to the top of the zipper head clamping device.

[0013] The blanking mechanism includes an arc-shaped blanking plate. A blanking channel for the zipper head to pass through is provided at the center of the blanking plate. A pushing cylinder and a connecting block are provided on the blanking plate. The pushing cylinder drives the connecting block to displace. An opening coinciding with the blanking channel is provided at the port of the blanking plate. The end of the clamping block is provided with a clamping block extending downward into the opening. The zipper head is clamped by the clamping block, and the zipper head is discharged by the displacement of the clamping block.

[0014] The fixture includes an inclined state and a parallel state. The inclined state has the same inclination angle as the blanking port of the blanking plate. After picking up the material, it is clamped and adjusted to the parallel state. The fixture realizes flipping and resetting through a spring and a limiting block.

[0015] Furthermore, the zipper head clamping device includes a base, a first moving mechanism installed on the base, a front clamping mechanism, and a rear clamping mechanism installed on the first moving mechanism. The front clamping mechanism and the rear clamping mechanism clamp the zipper head from the front and rear ends, and drive the rear clamping mechanism to displace through the first moving mechanism to clamp or release the zipper head.

[0016] The clamping ends of the front clamping mechanism and the rear clamping mechanism are respectively provided with a front lifting platform and a rear lifting platform. The front and rear ends of the zipper head are respectively placed on the front lifting platform and the rear lifting platform. The heights of the front lifting platform and the rear lifting platform are adjusted through a spring and an adjusting screw.

[0017] On both sides of the rear lifting platform, movable left and right clamping blocks are respectively provided. A triangular adjusting block that can move up and down is provided directly below the rear lifting platform. The adjusting block is located at the center of the left and right clamping blocks. The left and right clamping blocks respectively fit on the inclined surfaces on both sides of the adjusting block. The up and down displacement of the adjusting block drives the left and right clamping blocks to open or close to both sides. The spring is located between the adjusting block and the rear lifting platform, and the height of the adjusting block is adjusted through the spring and the adjusting screw.

[0018] Furthermore, the zipper tearing device includes a bottom plate, a second moving mechanism installed on the bottom plate, and a left clamping mechanism and a right clamping mechanism installed on the second moving mechanism for clamping on both sides of the zipper respectively. The left clamping mechanism and the right clamping mechanism are symmetrically designed and displace in opposite directions. Rotating parts are provided at the ports of the left clamping mechanism and the right clamping mechanism. After clamping the zipper, the zipper is driven to open outward through the rotating parts. The rotating parts are rotated through a cam structure.

[0019] Further, the left clamping mechanism and the right clamping mechanism both include an upper clamping rod, a lower clamping rod, and a clamping cylinder at the rear end. The rotating member is installed at the upper end of the upper clamping rod, and the two clamping cylinders are respectively installed at the upper end of the second moving mechanism. Upper clamping blocks and lower clamping blocks are provided at the front ends of the upper clamping rod and the lower clamping rod, and the ends are rotatably connected inside the clamping cylinder. The zipper is clamped between the upper clamping block and the lower clamping block, and the upper clamping rod and the lower clamping rod clamp or loosen the zipper by closing up and down. The upper clamping block is connected to the rotating member, and the rotating member is rotated through a cam structure to drive the upper clamping block to rotate, thereby tearing the zipper port.

[0020] A linkage mechanism is provided outside the left clamping mechanism and the right clamping mechanism to synchronously rotate the upper clamping block and the lower clamping block. The linkage mechanism includes an upper connecting piece on the side of the upper clamping rod and a lower connecting piece on the side of the lower clamping rod. The upper connecting piece and the lower connecting piece are respectively connected to the upper clamping block and the lower clamping block. An extension piece extending upward is provided on the side wall of the lower connecting piece and fits against the side wall of the upper connecting piece. When the upper connecting piece rotates, the lower connecting piece is driven to rotate through the extension piece, so as to realize the synchronous rotation of the upper clamping block and the lower clamping block.

[0021] Further, the zipper cutting device includes a support, an ultrasonic cutter installed on the zipper feeding device, a cutter installed on one side of the support, and a movable block movably connected to the upper end of the support. A detachable cutting platform is provided on the movable block, and the zipper is placed on the cutting platform. The top surface of the cutting platform is higher than the cutting edge of the cutter. The zipper is brought into contact with the cutter by pressing down the cutting platform by the ultrasonic cutter, and cutting is performed through ultrasonic vibration. A chute is provided on the cutting platform, and a chip removal groove is provided on the cutter.

[0022] Further, at least two connecting columns are provided on the support, springs are provided on the connecting columns, connecting holes adapted to the connecting columns are provided on the movable block, the connecting holes penetrate through the movable block, and the connecting columns are inserted into the connecting holes, and the springs abut against the lower end of the movable block.

[0023] An automatic zipper threading method, the steps of which include:

[0024] S1. Feeding, the zipper head enters the zipper head conveying device through the vibration of the hopper.

[0025] S2. Discharging, the zipper head falls from the zipper head conveying device.

[0026] S3. Feeding, the zipper head conveying device catches the falling zipper head and sends it to the zipper head clamping device.

[0027] S4. Pre-installation of the zipper head, the zipper head clamping device clamps the zipper head and moves it upward, so that the zipper head is clamped between the zipper head limiting member and the zipper head clamping device.

[0028] S5. Pre-installation of the zipper, the zipper is displaced and fed through the zipper feeding device.

[0029] S6. Installation: Clamp the zipper with the zipper tearing device and pull out the zipper. During the pulling process, the installation with the zipper head is completed.

[0030] S7. Cutting: Cut the installed zipper through the device, and the zipper tearing device releases the zipper.

[0031] Furthermore, in S1, the zipper heads are poured into the hopper. The zipper heads are sent into the zipper head conveying device by vibration. The zipper heads enter the blanking mechanism from top to bottom and are aligned and hung in the blanking channel with an arc-shaped trajectory. The end of the blanking channel limits the zipper heads through the zipper head interception buckle.

[0032] S2. Drive the push block to displace by the telescopic movement of the cylinder to push open the zipper head interception buckle. The zipper head falls due to gravity. After one zipper head falls, the push block retracts. The zipper head interception buckle is reset by the resilience of the spring to limit the zipper head again. S3. The fixture is in an inclined state to catch the falling zipper head. Drive the fixture to displace by the telescopic movement of the cylinder. During the displacement process, it gradually returns to a parallel state along the inclined plane on the guide plate. The fixture displaces to directly above the zipper head clamping device.

[0033] S4. The zipper head clamping mechanism is initially in an open state. Then, the clamping mechanism displaces through the cylinder to push out the zipper head on the fixture and clamps the zipper head from the front and rear ends with the front clamping mechanism. The fixture retracts by the contraction of the cylinder. The zipper head clamping device rises through the lifting mechanism to clamp the zipper head between the zipper head limiting part and the zipper head clamping device.

[0034] S5. The zipper feeding device clamps the zipper from the upper and lower ends through the cylinder, and then laterally displaces the zipper through another cylinder to expose the zipper on one side of the zipper cutting device. The cylinder releases the zipper, and the zipper feeding device retracts through the cylinder.

[0035] S6. The conveying mechanism drives the conveyor belt to displace through the motor, driving the zipper tearing device to displace back and forth. The zipper tearing device first displaces forward through the zipper head limiting part and clamps the zipper exposed on one side of the zipper cutting device. The cylinder on the zipper feeding device releases the zipper and retracts through the cylinder. The zipper tearing device then displaces backward to pull out the zipper, making the zipper penetrate into the gap between the zipper head clamping device and the zipper head limiting part. The zipper head slightly penetrates into the zipper port. The zipper tearing device clamps the zipper and continues to displace backward. The rotating part rotates through the cam structure to drive the port of the zipper to open outward. At the same time, the zipper tearing device also displaces to both sides through the cam structure to tear the zipper into two halves. The zipper head gradually penetrates into the zipper. The zipper tearing device continues to displace, and the torn zipper gradually closes.

[0036] S7. The zipper cutting device presses the zipper in a downward manner through the ultrasonic knife and makes the zipper contact the cutting edge of the cutter, and cuts the zipper through ultrasonic vibration.

[0037] Further, the step S6 further includes

[0038] S61. Tear open the zipper. During the process that the zipper tearing device clamps the zipper and moves it backward to tear it open, the two chain tooth tapes on the zipper penetrate from the chain teeth into the slot and then into the chain tooth tearing slot. When the zipper abuts against the guide block, the cam block also contacts the two cam shafts. The zipper tearing device continues to move backward, and the zipper port is torn open in a V shape. At the same time, the left clamping mechanism and the right clamping mechanism move toward both sides to tear the zipper in half.

[0039] S62. Close the zipper and continue to pull the zipper backward. The two torn chain tooth tapes respectively enter the first chain tooth channel and the second chain tooth channel and move along their trajectories. Through the inclined guiding part, the two chain tooth tapes enter the chain tooth closing slot and are meshed.

[0040] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0041] The zipper head of the present utility model is sent into the zipper head clamping device through the zipper head conveying device. The zipper head clamping device then moves upward through the lifting mechanism to clamp the zipper head between the zipper head limiting member and the zipper head clamping device. A whole zipper is inserted through the zipper feeding device. The zipper tearing device moves forward to clamp both sides of the zipper and pulls the zipper backward. During the movement, the zipper is gradually torn open through the cam structure and the zipper head is inserted. Then the torn zipper is meshed. Finally, the zipper cutting device makes the zipper contact the cutting edge of the cutter in a pressing manner through the ultrasonic cutter, and cuts the zipper by means of ultrasonic vibration.

[0042] 1. The process of automatically feeding the zipper head and inserting the zipper is realized. Compared with the traditional manual insertion of the zipper head, it has a faster speed, can produce zippers in large quantities, reduces labor, and also has a faster production speed.

[0043] 2. The front lifting table and the rear lifting table of the zipper head clamping device can be adjusted up and down to adapt to zipper heads of different thicknesses; the left clamping block and the right clamping block can also be adjusted to adapt to zipper heads of different widths, and can be adjusted according to the size and model of the zipper head before the machine works, achieving the effect of being compatible with different models of zipper heads.

[0044] 3. In the traditional method of tearing a zipper, the zipper is directly torn into two halves. The zipper tearing device of the present utility model clamps both ends of the zipper, moves backward to pull out the zipper, and rotates a rotating member through a cam structure to open the front end of the zipper. At the same time, the left clamping mechanism and the right clamping mechanism are also displaced through the cam structure to tear the zipper into two halves. The sizes of the teeth of zippers of the same model may vary. After entering the inner cavity of the zipper head, if the size is too large, it may cause the zipper not to be torn into two halves. Therefore, by adding the step of tearing the front end of the zipper through the rotating member, zippers with different sizes can be adapted, achieving a universal matching effect, and also helping the clamping mechanism to more easily tear the zipper into two parts.

[0045] 4. When the zipper cutting device cuts the zipper, the zipper is placed on the cutting platform. The ultrasonic tool at the upper end drives the cutting platform to move downward in a pressing manner, causing the zipper to contact the cutting edge of the cutter, and then cutting the zipper through ultrasonic vibration. When pressing down, the zipper is clamped between the ultrasonic vibrator and the cutting platform, which has a stabilizing effect on the zipper, making it not easy to shift, ensuring that the cut zipper is relatively flat and guaranteeing the consistency of each zipper. Moreover, compared with the direct cutting of the cutter by dropping, the ultrasonic vibration cutting is more flat. During the zipper cutting process and the process of the zipper moving forward after cutting, the teeth are always located in the chute, avoiding excessive force of the ultrasonic vibrator pressing on the zipper from damaging the zipper or causing the meshed teeth to expand. Brief Description of the Drawings

[0046] Figure 1 is a three-dimensional view of the present utility model.

[0047] Figure 2 is Figure 1 a partial enlarged view of

[0048] Figure 3 is a three-dimensional view of the zipper feeding device of the present utility model.

[0049] Figure 4 is a three-dimensional view of the zipper cutting device of the present utility model.

[0050] Figure 5 is an exploded view of the zipper cutting device of the present utility model.

[0051] Figure 6 is a three-dimensional Figure One of the zipper head clamping mechanism of the present utility model.

[0052] Figure 7 is a three-dimensional Figure Two of the zipper head clamping mechanism of the present utility model.

[0053] Figure 8 is a three-dimensional view of the front clamping mechanism of the present utility model.

[0054] Figure 9 This is the front view of the rear clamping mechanism of the present utility model.

[0055] Figure 10 This is the installation schematic diagram of the front lifting platform of the present utility model.

[0056] Figure 11 This is the three-dimensional view of the zipper tearing device of the present utility model.

[0057] Figure 12 This is the front view of the zipper tearing device of the present utility model.

[0058] Figure 13 This is the exploded view of the left clamping mechanism of the present utility model.

[0059] Figure 14 This is the three-dimensional view of the zipper head limiting member of the present utility model.

[0060] Figure 15 This is the three-dimensional view of the cam block of the present utility model.

[0061] Figure 16 This is the three-dimensional view of the zipper head conveying device of the present utility model.

[0062] Figure 17 This is the three-dimensional view of the fixture of the present utility model.

[0063] Figure 18 is Figure 16 partial enlarged view of.

[0064] Reference numerals: 1, workbench, 101, installation groove, 102, lifting mechanism, 103, connecting frame;

[0065] 2, zipper feeding device, 201, fixing block, 202, upper plate, 203, lower plate, 204, feeding channel, 205, pressing cylinder, 206, chain tooth groove, 207, upper retaining piece;

[0066] 3, zipper cutting device, 301, support, 302, ultrasonic cutter, 303, cutter, 304, movable block, 305, cutting platform, 306, chute, 307, connecting column, 308, connecting hole, 309, fixing groove, 310, chip removal groove;

[0067] 4. Zipper head clamping device, 401. Base, 402. First moving mechanism, 403. Front clamping mechanism, 404. Rear clamping mechanism, 405. Tooth entry groove, 406. Tooth tearing groove, 407. Tooth closing groove, 408. Front lifting platform, 409. Rear lifting platform, 410. Left clamping block, 411. Right clamping block, 412. Adjusting block, 413. Spring block, 414. First through hole, 415. First threaded hole, 416. Second through hole, 417. Second threaded hole, 418. Tilted block, 419. Fixed screw, 420. Adjusting screw, 421. Shaft hole, 422. Shaft post, 423. Tilted portion, 424. Hole, 425. Connecting block, 426. Spring hole, 427. Screw, 428. Fixed plate, 429. Guide block, 430. First tooth channel, 431. Second tooth channel, 432. Guide portion;

[0068] 5. Zipper tearing device, 501. Base plate, 502. Second moving mechanism, 503. Left clamping mechanism, 504. Right clamping mechanism, 505. Rotating member, 506. Slide rail, 507. First slider, 508. Second slider, 509. Side plate, 510. Return spring, 511. Upper clamping rod, 512. Lower clamping rod, 513. Clamping cylinder, 514. Upper clamping block, 515. Lower clamping block, 516. Cam block, 517. First camshaft, 518. Second camshaft, 519. Connecting column, 520. First hole, 521. Second hole, 522. Linkage mechanism, 523. Upper connecting piece, 524. Lower connecting piece, 525. Extension piece, 526. Positioning groove, 527. Lower cam block, 528. Lower cam block, 529. Trapezoidal portion;

[0069] 6. Zipper head conveying device, 601. Feeding mechanism, 602. Feeding cylinder, 603. Fixture, 604. Hopper, 605. Feeding plate, 606. Pushing cylinder, 607. Pushing block, 608. Feeding piece, 609. Feeding channel, 610. Opening, 611. Pushing portion, 612. Zipper head interception buckle, 613. Zipper head limiting piece, 614. Guide surface, 615. Clamping block, 616. Chuck, 617. Mounting seat, 618. Rotating block, 619. Guide plate, 620. First inclined surface, 621. Second inclined surface, 622. Roller;

[0070] 7. Zipper head limiting member, 701. First limiting block, 702. Second limiting block, 703. Extension block, 704. First cavity, 705. Second cavity, 706. Movable column;

[0071] 8. Conveying mechanism. Detailed implementation

[0072] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0073] As Figure 1-18 shown, an automatic zipper threading device includes a workbench 1 and a zipper feeding device 2, a zipper cutting device 3, a zipper head clamping device 4, a zipper head conveying device 6, and a zipper tearing device 5 that are sequentially installed on the workbench from front to back. The zipper feeding device 2, the zipper cutting device 3, the zipper head clamping device 4, and the zipper tearing device 5 are in the same horizontal direction, and the zipper head conveying device 6 is located on one side of the zipper head clamping device 4; it further includes a connecting frame 103, a conveying mechanism 8, and a zipper head limiting member 7 installed on the connecting frame 103. The zipper tearing device 5 is installed on the conveying mechanism 8 and protrudes from one side of the conveying mechanism 8, and realizes forward and backward displacement through the conveying mechanism 8. The conveying mechanism 8 drives the conveyor belt to move through a motor. The workbench 1 is provided with a concave installation groove 101, and a lifting mechanism 102 is arranged in the installation groove 101. The lifting mechanism 102 is connected to the zipper head clamping device 4 and drives the zipper head clamping device 4 to move up and down. The lifting mechanism 102 drives the zipper head clamping device 4 to move up and down by means of the telescopic cylinder.

[0074] For the shown zipper feeding device 2, the whole zipper is inserted into the zipper feeding device, and the zipper is fed by forward displacement; the zipper head conveying device 6 conveys a plurality of zipper heads and is used to send the zipper heads to the top of the zipper head clamping device 4; the zipper head clamping device 4 clamps the zipper head and moves up by the lifting mechanism 102, so that the zipper head is clamped between the zipper head clamping device 4 and the zipper head limiting member 7; the zipper tearing device 5 moves forward through the zipper head limiting member 7, clamps the zipper and moves backward to pull out the zipper, and tears the zipper and inserts it into the zipper head located between the zipper head limiting member 7 and the zipper head clamping device 4 during the backward movement; the zipper cutting device 3 is installed at the discharge end of the zipper feeding device 2. After the zipper is pulled out by the zipper tearing device 5 and inserted into the zipper head, the zipper is cut by ultrasonic vibration. The present utility model realizes the process of fully automatic zipper head feeding and zipper threading. Compared with the traditional manual zipper head threading, it has a faster speed, can produce zippers in large quantities, reduces labor, and also has a faster production speed.

[0075] The shown zipper feeding device 2 includes a fixed block 201, an upper plate 202 and a lower plate 203. There is a feeding channel 204 for the zipper to pass through between the upper plate 202 and the lower plate 203, and the zipper penetrates through the feeding channel 204. The upper plate 202 and the lower plate 203 are connected by threads, and the front and back displacement of the lower plate 203 is driven by the telescopic movement of a cylinder, and the upper plate 202 and the lower plate 203 are displaced synchronously. A pressing cylinder 205 is installed on the top of the upper plate 202. There is an adhesive block on the air rod of the pressing cylinder 205, and there is a hole on the upper plate 202 for the adhesive block to pass through. The displacement of the adhesive block through the hole is driven by the pressing cylinder 205, so that the clamping block presses on the zipper, playing a limiting role on the zipper. When the zipper is discharged, the pressing cylinder 205 first expands and contracts to press the zipper, and the telescopic movement of another cylinder drives the lower plate 203 to move forward to discharge the zipper. When the zipper tearing device 5 moves over to clamp the zipper, the pressing cylinder 205 releases, and the lower plate 203 retreats backward to reset. There is a chain tooth groove 206 on the lower plate 203, and the chain tooth tape on the zipper is always displaced within the chain tooth groove 206 to prevent the meshed chain teeth from expanding due to extrusion. An upper retaining piece 207 is provided at the discharge end of the upper plate 202. When the zipper is discharged from the discharge end of the feeding channel 204, the zipper is located between the upper retaining piece 207 and the zipper cutting device 3, playing a limiting role on the zipper. There are slide rails and sliders between the lower plate 203 and the fixed block 201. The lower plate 203 is installed on the slider, and the slider slides on the slide rail when the lower plate 203 moves back and forth.

[0076] The shown zipper head conveying device 6 includes a blanking mechanism 601, a feeding cylinder 602 and a rotatable fixture 603. The fixture 603 is used to clamp the zipper heads that fall in the blanking mechanism 601, and the displacement of the fixture 603 is driven by the telescopic movement of the feeding cylinder 602 to send the zipper heads to the top of the zipper head clamping device 4.

[0077] The blanking mechanism 601 includes a hopper 604, an arc-shaped blanking plate 605, a pushing cylinder 606 and a pushing block 607 installed on the blanking plate 605. The pushing cylinder 606 drives the displacement of the pushing block 607 to push out the zipper heads. There is a feeding piece 608 between the hopper 601 and the blanking plate 605. The zipper heads are poured into the hopper 604, and through vibration, the zipper heads pass through the hopper 604, the feeding piece 608, and the blanking plate 605 in sequence. There is a blanking channel 609 for the zipper heads to enter at the center of the blanking plate 605. After the zipper heads enter the blanking plate 605, they are neatly arranged in the blanking channel 609. During operation, the zipper heads fall one by one and are clamped by the fixture 63 and sent to the zipper head clamping device 4. There are two zipper head limiting pieces 613 along the contour of the blanking plate at the lower end of the blanking plate 605. The zipper head limiting pieces 613 protrude from the blanking channel 609, and the two zipper head limiting pieces 613 are inserted into the pull head seams of the zipper heads from both sides. The zipper heads fall along the trajectory of the zipper head limiting pieces 613, and it can also prevent the zipper heads from falling.

[0078] The blanking plate 605 is provided with an opening 610 that coincides with the blanking channel 609. The end of the pushing block 607 is provided with a pushing portion 611 that extends downward into the opening 610. When the pushing block 607 is displaced, the pushing portion 611 moves within the opening 610 to push out the zipper head. On the side walls on both sides of the opening 610, there are pressable zipper head interception buttons 612. The pushing portion 611 is located behind the zipper head interception buttons 612. The zipper head interception buttons 612 are pressed by springs. In the normal state, the zipper head interception buttons 612 protrude from the side walls of the opening 610 to intercept the zipper head and prevent the zipper head from freely falling due to gravity. When the pushing block 607 is displaced forward, the pushing portion 611 squeezes the zipper head interception buttons 612 on both sides to make them contract inward. At this time, the interception state of the zipper head is released, and the zipper head at the outermost end can complete discharging through the zipper head interception buttons 612. After discharging, the pushing cylinder 606 retracts to drive the pushing block 607 to retract. At this time, the zipper head interception buttons 612 are reset by the resilience of the springs to intercept the zipper head behind again. A guiding surface 614 is provided on the side of the zipper head interception button 612 close to the pushing block 607. When the pushing portion 611 is displaced forward, it can gradually push open the zipper head interception buttons 612 on both sides along the guiding surface 614, playing a guiding role and facilitating discharging.

[0079] The fixture 603 includes a clamping block 615, a chuck 616 rotatably connected to one side of the clamping block 615, and a mounting seat 617 at the bottom. The clamping block 615 and the chuck 616 are provided with zipper head positioning pieces 617 that penetrate into the pull head slot. After the zipper head is blanked, it penetrates into the two zipper head positioning pieces 617. Cylindrical tension springs are provided on the chuck 616 and the clamping block 615 by respectively providing a screw with a corresponding position on the chuck 616 and the clamping block 615, and the two ends of the cylindrical tension spring are respectively sleeved on the two screws. The chuck 616 is pivotally connected to the clamping block 615 and can rotate. The feeding cylinder 602 extends and retracts forward to drive the fixture 603 to be displaced to the zipper head clamping device 4. When the zipper head clamping device 4 is displaced to clamp the zipper head, it also pushes out the zipper head. At this time, the zipper head is located at the port of the fixture 603 and is in a clamped state. The inner sides of the chuck 616 and the clamping block 615 are inclined. After the feeding cylinder 602 completes feeding and retracts, the inclined surface on the inner side of the chuck 616 gradually rotates and opens along the zipper head as the fixture 603 retracts. When it opens to a certain extent, the zipper head completely disengages from the fixture 603, and the chuck 616 is reset by the cylindrical tension spring.

[0080] A rotating block 618 extending downward is provided at the lower end of the clamping block 615. The rotating block 618 is embedded in the mounting seat 617 and is rotatably connected to the mounting seat by means of shaft connection. The rotating block 618 drives the clamping block 615 to rotate synchronously. Since the zipper head blanking plate 605 has an arc-shaped trajectory, the fixture 603 needs to rotate to a certain angle to catch the zipper head. A guide plate 619 is provided on the workbench 1, and the guide plate 619 is located directly in front of the blanking mechanism 601. A first inclined surface 620 is provided on the side of the guide plate 619 close to the fixture 603, and a second inclined surface 621 is provided on the side of the guide plate 619 close to the blanking mechanism 601. The principle of rotation of the fixture 603 is as follows: a roller 622 is provided at the bottom of the rotating block 618. After the feeding is completed, the feeding cylinder 602 contracts to drive the fixture 603 to retract. The roller 622 first touches the first inclined surface 620 and gradually displaces along the first inclined surface 620. Since the guide plate 619 and the mounting seat 617 are fixed, the rotating block 618 gradually rotates upward as the roller 622 displaces, causing the fixture 603 to tilt; after the roller 622 passes through the first inclined surface 620, it touches the second inclined surface 621, causing the fixture 603 to tilt again and be at the same inclined angle as the blanking plate 605. When the roller 622 moves on the second inclined surface 621, the fixture 603 always remains at a constant inclined angle.

[0081] A cylindrical tension spring is also provided between the clamping block 615 and the mounting seat 617. By respectively providing a screw on the top of the clamping block 615 and the side wall of the mounting seat 617, the two ends of the cylindrical tension spring are respectively sleeved on the two screws. After the fixture 603 passes through the guide plate 619, it is reset by the resilience of the cylindrical tension spring. A slide rail and a slider are provided at the lower end of the fixture 603. The fixture 603 is mounted on the slider, and the feeding cylinder 602 drives the slider to slide on the slide rail for forward and backward displacement.

[0082] The shown zipper head clamping device 4 includes a base 401, a first moving mechanism 402 mounted on the base 401, a front clamping mechanism 403, and a rear clamping mechanism 404 mounted on the first moving mechanism 402. The front clamping mechanism 403 and the rear clamping mechanism 403 clamp the zipper head from the front and rear ends. The first moving mechanism 402 drives the rear clamping mechanism 404 to displace so as to clamp or loosen the zipper head. By clamping the zipper head, the position is limited to prevent the zipper head from falling due to vibration during the working process. The first moving mechanism 402 includes a slide rail, a slider, and a cylinder. The rear clamping mechanism 404 is mounted on the slider. The slider slides on the slide rail, and the cylinder extends and retracts to drive the slider to displace, and synchronously drives the rear clamping mechanism 404 to displace, so as to clamp or loosen the zipper head.

[0083] A chain tooth entry groove 405 is provided at the top of the rear clamping mechanism 404, and a chain tooth tearing groove 406 and a chain tooth closing groove 407 are provided at the top of the front clamping mechanism 403. The chain tooth entry groove 405, the chain tooth tearing groove 406, and the chain tooth closing groove 407 are in the same horizontal direction. The width of the chain tooth closing groove 407 is smaller than the width of the chain tooth tearing groove 406, and inclined guiding parts 432 are provided at the junctions on both sides of the chain tooth tearing groove 406 and the chain tooth closing groove 407. A guiding block 429 is provided on the chain tooth tearing groove 406. When the zipper head is clamped between the front clamping mechanism 403 and the rear clamping mechanism 403, the guiding block 407 can also abut against the front end of the zipper head, playing a role in limiting the zipper head.

[0084] After the zipper head clamping device 4 clamps the zipper head and moves upward, the front and rear ends of the zipper head are clamped by the front clamping mechanism 404 and the rear clamping mechanism 405, and the upper and lower ends are clamped by the zipper head limiting member 7 and the zipper head clamping device 4, achieving a good limiting effect on the zipper head and making it not easy to shake. When the zipper head is in the clamped state, it is higher than the zipper head clamping device 4. The zipper tearing device 5 clamps the zipper and moves backward, driving the zipper to pass through the gap between the zipper head clamping device 4 and the zipper head limiting member 7, and making the zipper head slightly penetrate into the port of the zipper. The two chain tooth tapes of the zipper enter through the chain tooth entry groove 405.

[0085] The guiding block 407 is located at the center opposite to the two meshed chain tooth tapes, and the guiding block 407 divides the chain tooth tearing groove 406 into a first chain tooth channel 430 and a second chain tooth channel 431. When the zipper is pulled out, the two meshed chain tooth tapes enter through the chain tooth entry groove 405 and are displaced to the chain tooth tearing groove 406, and the two meshed chain tooth tapes abut against the guiding block 429. When the zipper is continuously pulled out, at this time, the zipper tearing device 5 tears the zipper, and the guiding block 429 cooperates with the zipper tearing device 5 to push open the two meshed chain tooth tapes, which helps to tear the zipper. The chain tooth tapes torn into two parts respectively enter the first chain tooth channel 430 and the second chain tooth channel 431 and are displaced along the first chain tooth channel 430 and the second chain tooth channel 431. Finally, the two chain tooth tapes are displaced along the guiding part 432 into the chain tooth closing groove 407. The chain tooth tearing groove 406 gradually transitions to the chain tooth closing groove by the guiding part 432. When the two torn chain tooth tapes are displaced along the guiding part 432, they gradually close, and are meshed again in the chain tooth closing groove 407 and then separated from the chain tooth closing groove 407.

[0086] The clamping ends of the front clamping mechanism 403 and the rear clamping mechanism 404 are respectively provided with a front lifting platform 408 and a rear lifting platform 409. The front and rear ends of the zipper head are respectively placed on the front lifting platform 408 and the rear lifting platform 409, and the heights of the front lifting platform 408 and the rear lifting platform 409 are adjusted by springs and adjusting screws to adapt to zipper heads of different thicknesses.

[0087] On both sides of the rear lifting platform 409, there are movable left clamping block 410 and right clamping block 411, which are respectively clamped on the left and right sides of the zipper head to prevent the zipper head from falling when being clamped, further increasing the stability. A triangular adjusting block 412 that can move up and down is arranged directly below the rear lifting platform 409. The adjusting block 412 is located at the center of the left clamping block 410 and the right clamping block 411 and can play a centering role. The left clamping block 410 and the right clamping block 411 are respectively attached to the inclined surfaces on both sides of the adjusting block 412. The up and down displacement of the adjusting block 412 drives the left clamping block 410 and the right clamping block 411 to open or close to clamp or loosen the zipper; the spring is located between the adjusting block 412 and the rear lifting platform 409, and the height of the adjusting block 412 is adjusted through the spring and the adjusting screw.

[0088] Before the work starts, adjust the heights of the front lifting platform 408 and the rear lifting platform 409 according to the specifications of the zipper heads to be used, and also adjust the clamping widths of the left clamping block 410 and the right clamping block 411, so as to be compatible with zipper heads of different sizes. Using this device can be adapted to zipper heads of different sizes. Users do not need to purchase different-sized machines according to each different-sized zipper head, which facilitates the use of users and also saves costs.

[0089] As shown, a spring block 413 is arranged at the lower end of the front lifting platform 408. A spring is arranged between the spring block 413 and the front lifting platform 408. The spring block 413 is fixed to the front clamping mechanism 403 by a threaded method and is used to support the spring at the lower end. The spring plays a boosting role in the displacement of the front lifting platform 408. Similarly, for the spring between the rear lifting platform 409 and the adjusting block 412, the lower end of the spring is placed on the adjusting block 412, and the upper end abuts against the bottom of the rear lifting platform 409. The spring also plays a boosting role in the displacement of the rear lifting platform 409.

[0090] As shown, first through holes 414 are provided on both the front clamping mechanism 403 and the rear clamping mechanism 404. First threaded holes 415 corresponding to the positions of the first through holes 414 are provided on both the front lifting platform 408 and the rear lifting platform 409. The diameter of the first through hole 414 is larger than that of the first threaded hole 415. A fixing screw 419 is provided to pass through the first through hole and be screwed into the first threaded hole 415. The front lifting platform 408 and the rear lifting platform 409 are respectively fixed to the inner sides of the front clamping mechanism 403 and the rear clamping mechanism 404 by the screws. When the height of the front lifting platform 408 or the rear lifting platform 409 needs to be adjusted, the fixing screw 419 needs to be loosened first. After the adjustment is completed, the fixing screw 419 is tightened again to prevent the height of the front lifting platform 408 or the rear lifting platform 409 from changing due to vibrations during the work. After the heights of the front lifting platform 408 and the rear lifting platform 409 change, the positional relationship of the first threaded holes 415 also changes, and the position of the first through hole 414 remains constant. Since the size of the first through hole 414 is larger than that of the first threaded hole 415, the fixing screw 419 can still pass through the through hole 414 and be screwed into the first threaded hole 415.

[0091] A second through hole 416 is provided on one side of the first threaded hole 415 shown, and the second through hole 416 is located in the front lifting table 408 and the rear lifting table 409; a second threaded hole 417 is provided on one side of the first through hole 414, and the second threaded hole 417 is located on the front clamping mechanism 403 and the rear clamping mechanism 404. The second through hole 416 and the second threaded hole 417 are in corresponding positions. An inclined block 418 is provided in the second through hole 416. An adjusting screw 420 is screwed into the second threaded hole 417 and passes through the second through hole 416, and the end of the adjusting screw 420 abuts against the inclined block 418. When the adjusting screw 420 is screwed inwards, the adjusting screw 420 displaces along the inclined surface of the inclined block 418. The more it is screwed inwards, the higher point of the inclined surface the adjusting screw 420 abuts against. Since the height of the adjusting screw 420 is constant, the inclined block 418 is squeezed to displace downwards, driving the front lifting table 408 or the rear lifting table 409 to displace downwards. When the adjusting screw 420 is gradually withdrawn outwards, the front lifting table 408 or the rear lifting table 409 gradually rises under the resilience of the lower spring. By screwing in or out the adjusting screw 420, the heights of the front lifting table 408 and the rear lifting table 409 are adjusted, which is relatively simple and convenient. The fixing and height adjustment methods of the front lifting table 408 and the rear lifting table 409 are the same.

[0092] Shaft holes 421 are provided on the left clamping block 410 and the right clamping block 411 shown, and the shaft holes 421 are located at a position slightly below the center. A shaft post 422 is provided on the rear clamping mechanism 404 and passes through the shaft hole 421 for connecting the left clamping block 410 and the right clamping block 411, and the left clamping block 26 and the right clamping block 27 are opened or closed to both sides with the shaft post 422 as the pivot point for adjustment. When the adjusting block 412 displaces upwards, the inclined surfaces on both sides gradually displace upwards along the inclined surfaces of the left clamping block 410 and the right clamping block 411. Since the heights of the left clamping block 410 and the right clamping block 411 are constant, the lower ends of the left clamping block 410 and the right clamping block 411 open to both sides. The more the adjusting block 18 displaces upwards, the more the parts below the pivot points of the left clamping block 410 and the right clamping block 411 on both sides are squeezed to open to both sides. Due to the action of the tension, the parts above the pivot points of the left clamping block 410 and the right clamping block 411 are more closed for clamping a narrower zipper head. Similarly, when the adjusting block 412 gradually displaces downwards, the parts below the pivot points of the left clamping block 410 and the right clamping block 411 gradually close, and the parts above the pivot points gradually open to both sides for clamping a wider zipper head.

[0093] The adjustment principle of the adjustment block 412 is as follows: on one side of the adjustment block 412, there is an inclined portion 423. On the left clamping block 410 or the right clamping block 411, there is a hole 424 corresponding to the position of the inclined portion 423. An adjustment screw 420 is also provided to pass through the hole 424 and its end abuts against the inclined portion 423. The more the adjustment screw 420 extends inward, the more the adjustment block 412 is lifted upward along the inclined portion 423, thereby driving the adjustment block 412 to move upward. When the adjustment screw 420 gradually withdraws outward, the adjustment block 412 is gradually reset by the resilience of the upper spring. The up and down displacement of the adjustment block 412 is controlled by the adjustment screw 420. A fixing screw 419 is also provided on the adjustment block 412. Similar to the fixing screw 419 of the front lifting table 408, the fixing screw 419 needs to be loosened before the adjustment block 412 can be adjusted, and it needs to be tightened again after the adjustment is completed. The diameter of the through hole on the adjustment block 412 is larger than the diameter of the threaded hole on the rear clamping mechanism 404 connected thereto. The fixing screw passes through the through hole and is screwed into the threaded hole. The extra size is the distance available for the displacement adjustment of the adjustment block 412.

[0094] On both sides of the shown rear clamping mechanism 404, there are fixing plates 428. The fixing plates 428 are fixed to both sides of the rear clamping mechanism 404 by screws. The fixing plates 428 are integrally L-shaped and abut against the left clamping block 410 and the right clamping block 411 from the inside, further increasing the stability, enabling it to be adjusted only left and right, preventing front and back shaking, and increasing the stability during use.

[0095] On both sides of the shown rear clamping mechanism 404, there are connecting blocks 425. The connecting blocks 425 are located at the bottom and are fixed to both sides of the rear clamping mechanism 404 by threading. The connecting blocks 425 are provided with threaded holes corresponding to the positions of the holes 424. The adjustment screw 419 is screwed into the threaded hole and passes through the hole 424. The connecting blocks 425 are used to install and connect the adjustment screw 419 to the adjustment block 412.

[0096] On the side edges of the bottoms of the shown left clamping block 410 and right clamping block 411, there are spring holes 426. Springs are installed in the spring holes 426. The connecting blocks 425 are also provided with threaded holes corresponding to the spring holes 426. Screws 427 are provided to be screwed into the threaded holes and pass through the spring holes 45. The springs are sleeved on the screws 427, and the springs are limited by the screws 427. The two springs respectively abut against the left clamping block 410 and the right clamping block 411 from both sides, making them closely fit with the adjustment block 412. And the springs play a boosting role in the adjustment of the left clamping block 410 and the right clamping block 411. When the adjustment block 412 moves downward, relying on the resilience of the springs themselves, the left clamping block 410 and the right clamping block 411 are squeezed to close.

[0097] The shown zipper tearing device 5 includes a bottom plate 501, a second moving mechanism 502 installed on the bottom plate 501, and a left clamping mechanism 503 and a right clamping mechanism 504 installed on the second moving mechanism 502 and used to clamp on both sides of the zipper respectively. The left clamping mechanism 503 and the right clamping mechanism 504 are symmetrically designed and displace in opposite directions. Rotating members 505 are provided at the ports of the left clamping mechanism 503 and the right clamping mechanism 504. After clamping the zipper, the rotating members 505 drive the zipper to open outwards, making the front end of the zipper open in a V shape. The rotating members 505 are rotated through a cam structure, and the left clamping mechanism 503 and the right clamping mechanism 504 also displace towards both sides through the cam structure to tear the zipper.

[0098] During the working process, the conveying mechanism 8 works to drive the zipper tearing device 5 to displace forward and pass through the zipper head limiting member 7. The zipper head limiting member 7 is located between the left clamping mechanism 503 and the right clamping mechanism 504. It continuously displaces forward until it approaches the zipper cutting device 3, clamps the zipper and displaces backward to pull out the zipper. The zipper penetrates into the gap between the zipper head clamping device 4 and the zipper head limiting member 7, and at the same time, the zipper head also slightly penetrates into the port of the zipper. It continuously displaces backward to pull out the zipper. At this time, through the cam structure, the rotating members 505 are driven to rotate to tear the port of the zipper, and at the same time, the second moving mechanism 502 drives the left clamping mechanism 503 and the right clamping mechanism 504 to displace towards both sides to tear the zipper into two halves. During the tearing process, as it displaces, the zipper head gradually penetrates into the zipper. Continue to pull out the zipper to make the torn zipper mesh again. The two steps of opening the port of the zipper and tearing the zipper into two halves are carried out synchronously.

[0099] The inner cavity dimensions of zipper heads of the same model are almost fixed, but the sizes of zippers of the same model vary greatly. If the zipper size is too large, after the chain teeth enter the inner cavity of the zipper head, it is impossible to tear the zipper by the left clamping mechanism 503 and the right clamping mechanism 504 displacing horizontally towards both sides. The chain teeth are stuck in the inner cavity of the zipper head, and there is not enough space for the chain teeth to displace left and right. Since the width of the inner cavity of the zipper head gradually increases in an inclined shape, only by pulling the zipper towards both sides along the contour of the inner cavity of the zipper head and at the same time making the port of the zipper pull outwards in a V shape can the zipper be successfully torn into two halves. Therefore, by adding the step of tearing the front end of the zipper through the rotating members 505, it realizes the compatibility with different models of zippers, enhances the versatility of this utility model, meets the convenience of users, and can also more easily tear the zipper into two parts.

[0100] The left clamping mechanism 503 and the right clamping mechanism 504 shown both include an upper clamping rod 511, a lower clamping rod 512, and a clamping cylinder 513 at the rear end. A rotating member 505 is installed at the upper end of the upper clamping rod 511, and the two clamping cylinders 513 are respectively installed at the upper ends of the first slider 507 and the second slider 508. Upper clamping blocks 514 and lower clamping blocks 515 are provided at the front ends of the upper clamping rod 511 and the lower clamping rod 512, and the ends are rotatably connected inside the clamping cylinder 513. The upper clamping rod 511 and the lower clamping rod 512 are driven by the clamping cylinder 513 to close up and down to clamp the zipper, and the zipper is clamped between the upper clamping block 514 and the lower clamping block 515. The upper clamping block 514 is connected to the rotating member 505, and the rotating member 505 is rotated through a cam structure to drive the upper clamping block 514 to rotate, thereby tearing the zipper port.

[0101] The cam structure includes a cam block 516 installed on the connecting frame 103, a first camshaft 517 on the rotating member 505, and a second camshaft 518 on the clamping cylinder 513. At the bottom of the front end of the cam block 516, a lower cam block 528 is provided. The distances between the two ends of the lower cam block 528 are adapted to the first camshaft 517, and the two ends of the lower cam block 528 are triangular with two flat inclined surfaces; on both sides of the rear end of the cam block 516, trapezoidal portions 529 are provided with two flat inclined surfaces and a flat surface. The distance between the trapezoidal portion 529 and the lower cam block is equal to the distance between the first camshaft 517 and the second camshaft 518, so the two camshafts work simultaneously. When the zipper tearing device 5 clamps the zipper and moves backward, in the first step, the two first camshafts 517 touch the inclined surfaces of the lower cam block 528, and at the same time, the two second camshafts 518 touch the inclined surfaces of the trapezoidal portion 529; in the second step, when continuing to move backward, the first camshaft 517 moves along the first inclined surface of the lower cam block 528 and drives the rotating member 505 to rotate to open the zipper port in a V shape. The second camshaft 518 moves along the first inclined surface of the trapezoidal portion 529 and drives the left clamping mechanism 503 and the right clamping mechanism 504 to open to both sides to tear the zipper in half; in the third step, when moving backward again, the first camshaft 517 enters the second inclined surface of the lower cam block 528 and gradually resets the rotating member 505 along the second inclined surface. When the second cam block 518 moves along the flat surface of the trapezoidal portion 529, the zipper head penetrates into the torn zipper. When the second camshaft 518 enters the second inclined surface of the trapezoidal portion, the left clamping mechanism 503 and the right clamping mechanism 504 gradually close to achieve reset along the trajectory of the inclined surface.

[0102] The second moving mechanism 502 includes a slide rail 506 on the bottom plate 501, a first slider 507 and a second slider 508 mounted on the slide rail 506. The first slider 507 slides reversely to the second slider 508. The left clamping mechanism 8 and the right clamping mechanism 9 are respectively mounted on the first slider 507 and the second slider 508. When the left clamping mechanism 503 and the right clamping mechanism 504 tear the zipper, the first slider 507 slides leftward, the second slider 508 slides rightward, and the left clamping mechanism 503, the right clamping mechanism 504 and the first slider 507, the second slider 508 are displaced synchronously. Side plates 509 are provided on both sides of the bottom plate 501, and a return spring 510 is provided between the side plates 509 and the left clamping mechanism 503, the right clamping mechanism 504 for the return of the left clamping mechanism 503 and the right clamping mechanism 504 after displacement.

[0103] The shown upper clamping block 514 is provided with a connecting column 519 extending upward. A first hole 520 for fitting the connecting column 519 is provided on the upper clamping rod 511. A second hole 521 corresponding to the first hole 520 is provided on the rotating member 505. The upper connecting column 519 passes through the first hole 520 and the second hole 521 from bottom to top. The first hole 520 and the second hole 521 are cylindrical holes and can rotate. The connecting column 519 is fixed in the second hole 521 by screwing a screw into the side. When the rotating member 505 rotates, it can drive the connecting column 519 to rotate, thereby driving the upper clamping block 514 to rotate. The lower end of the lower clamping block 515 is also provided with a connecting column 519 extending downward. A first hole 520 for fitting the connecting column 519 is also provided on the lower clamping rod 512. The lower clamping block 515 is rotatably inserted into the first hole through the connecting column 519 at the lower end.

[0104] A linkage mechanism 522 is provided on the outer sides of the shown left clamping mechanism 503 and right clamping mechanism 504 to synchronously rotate the upper clamping block 514 and the lower clamping block 515 through the linkage mechanism 522. The linkage mechanism 522 includes an upper connecting piece 523 connected to the side of the upper clamping rod 511 and a lower connecting piece 524 connected to the side of the lower clamping rod 512. The upper connecting piece 523 and the lower connecting piece 524 are respectively welded to the side walls of the upper clamping block 514 and the lower clamping block 515. An extension piece 525 extending upward is provided on the side wall of the lower connecting piece 524 and is attached to the side wall of the upper connecting piece 523. When the upper clamping block 514 drives the upper connecting piece 523 to rotate, the lower connecting piece 524 is driven to rotate through the extension piece 525, thereby realizing the synchronous rotation of the upper clamping block 514 and the lower clamping block 515.

[0105] The upper connecting piece 523 and the lower connecting piece 524 shown are provided with positioning grooves 526. A screw passes through the positioning groove 526 and is threadedly connected to the upper clamping rod 511 and the lower clamping rod 512. The screw is used to position the upper connecting piece 523 and the lower connecting piece 524. The size of the positioning groove 526 is larger than the size of the screw to prevent the upper connecting piece 523 and the lower connecting piece 524 from being stuck by the screw when rotating. A gasket and a spring are provided on the screw. The spring is clamped between the upper connecting piece 523, the lower connecting piece 524 and the gasket. The spring provides an assisting effect for the reset of the upper connecting piece 523 and the lower connecting piece 524.

[0106] The shown zipper cutting device 3 includes a support 301, an ultrasonic cutter 302 installed on the zipper feeding device 2, a cutter 303 installed on one side of the support 301, and a movable block 304 movably connected to the upper end of the support 301. A detachable cutting platform 305 is provided on the movable block 304. The zipper is in one piece during the cutting process and needs to be cut into multiple specified lengths. During operation, the zipper is placed on the cutting platform 305 for cutting. The top surface of the cutting platform 305 is higher than the cutting edge of the cutter 303. The zipper is brought into contact with the cutter 303 by pressing down the cutting platform 305 by the ultrasonic cutter 302, and cutting is performed through ultrasonic vibration. The ultrasonic cutter 302 realizes up and down displacement through the expansion and contraction of a cylinder. When pressing down, the zipper is clamped between the ultrasonic cutter 302 and the cutting platform 305, which has a stabilizing effect on the zipper, is not prone to deviation, can ensure that the cut zipper is relatively flat, and can ensure the consistency of each zipper.

[0107] In the cutting method of ultrasonic vibration, when pressing down, the end of the ultrasonic vibrator presses on the zipper. The ultrasonic vibrator generates high-frequency vibration in a way that converts electrical energy into mechanical energy, so that the contact part between the zipper and the cutter 2 continuously rubs and thus cuts off. The traditional cutting method is that the cutter directly presses down to cut off the zipper. Compared with the traditional zipper cutting method, ultrasonic vibration cutting can cut more neatly and smoothly, improving the aesthetics of the product.

[0108] A zipper is composed of two flexible tooth chain tapes that can mesh with each other and a zipper head that can be repeatedly opened and closed. The tooth chain tape is usually composed of fabric and teeth. The thickness of the teeth is generally greater than that of the fabric. Therefore, a chute 306 is provided at the top of the shown cutting platform 305. The teeth are placed in the chute 306, and the teeth also move along the chute 306 as the zipper is advanced. It can effectively avoid the zipper from bulging and the teeth on both sides from separating due to excessive downward pressure on the zipper during the cutting process.

[0109] At least two connecting columns 307 extending upward are provided at the top of the shown support 301. Connecting holes 308 that are adapted to the connecting columns 307 and penetrate the movable block 304 are provided at both ends of the movable block 304, and the connecting columns 307 penetrate into the connecting block. A spring is sleeved on the connecting column 307 and abuts against the lower end of the movable block 3. When cutting the zipper, the pressing part of the ultrasonic cutter 302 drives the cutting platform 305 and the movable block 304 to move downward. After the cutting is completed, the ultrasonic cutter 302 moves upward, and the movable block 304 moves upward and resets under the resilience of the spring.

[0110] The length of the shown movable block 304 is greater than that of the cutting platform 305, and the widths are equal. A fixing groove 309 that is the same length as the cutting platform 305 is provided at the top of the movable block 304. The cutting platform 305 is installed in the fixing groove 309 by means of screws, which is convenient for disassembly and is used to adapt to different sizes of chain teeth.

[0111] A chip removal groove 310 is provided at the midpoint of the shown cutter 303. Inevitably, chips will be generated during the cutting of the zipper, and the generated chips can be discharged through the chip removal groove 310 to avoid accumulation of a large amount of chips during the working process.

[0112] In the normal state, the cutting edge position of the cutter 303 is lower than the cutting plane 305; in the cutting state, the cutting platform 305 is pressed down so that the cutting edge is flush with or slightly higher than the top surface of the cutting platform 305. After the cutting is completed, the cutting platform 305 and the movable block 304 move upward and reset under the resilience of the spring. The amplitude of the up and down displacement of the movable block 304 is relatively low, which can ensure a good service life.

[0113] The described zipper head stopper 7 includes a first stopper block 701 and a second stopper block 702. The second stopper block 702 is adjustably mounted on one side of the first stopper block 701. The first stopper block 701 and the second stopper block 702 sandwich the zipper head from the front and rear ends respectively. The second stopper block 702 is adjustably mounted on one side of the first stopper block 701 by screws. The specific installation method is as follows: The first stopper block 701 has an extended block 703 extending out. The second stopper block 702 is provided with a threaded hole. The extended block 703 is provided with a hole whose size is larger than the threaded hole and allows the screw to move back and forth. The screw passes through the hole and is screwed into the threaded hole for fixation. When adjustment is needed, first slightly loosen the screw, then manually move the second stopper block 702 back and forth. The screw also moves back and forth in the hole. After completion of the adjustment, tighten the screw again. Adjust the distance between the first stopper block 701 and the second stopper block 702 to adapt to zipper heads of different sizes. The bottom of the first stopper block 701 is provided with a first cavity 704, and the bottom of the second stopper block 702 is provided with a second cavity 705. The first cavity 704 and the second cavity 705 respectively fit the contours of the front and rear ends of the zipper head, playing a role in limiting the zipper head, making it more stable and not easy to fall off. When the zipper head is on the zipper head clamping device 4, the zipper head clamping device 4 moves upward, so that the part of the zipper head protruding above the zipper head clamping device 4 is embedded into the first cavity 704 and the second cavity 705. The front clamping mechanism 403 and the rear clamping mechanism 404 clamp the zipper head from the front and rear ends. After the zipper head clamping device 4 moves upward, it and the zipper head stopper 7 clamp the zipper head from the upper and lower ends, playing a role in limiting the entire zipper head and ensuring the stability of the zipper head during the zipper threading process. And there is a movable column 706 that can move up and down in the first cavity 704, and it realizes up and down movement through the internal spring. When the zipper head clamping device moves upward and the zipper head enters the first cavity 704, during the upward movement of the zipper head, an upward pressing force is applied to the movable column 706, and the movable column 706 contracts inward. And due to the resilience of the spring, the movable column 706 always exerts a downward pressure on the zipper head, tightly clamping the zipper head between the zipper head stopper and the zipper head clamping device, further increasing the stability of the zipper head during the working process.

[0114] An automatic zipper threading method, the steps include:

[0115] S1, Zipper head feeding. Pour the zipper heads into the hopper, and neatly send the zipper heads into the zipper head conveying device 6 by vibration. The zipper heads enter the blanking mechanism 601 from top to bottom and are neatly hung in the arc-shaped blanking channel 609. The end of the blanking channel 609 limits the zipper heads through the zipper head interception buckle 612, and the zipper heads cannot fall, completing the feeding of the zipper heads;

[0116] S2. Zipper head blanking: The telescopic movement of the pushing cylinder 606 drives the displacement of the pushing block 607 to push open the zipper head interception buckle 612. Affected by gravity, the zipper falls. After one zipper head has fallen, the pushing cylinder 606 drives the pushing block 607 to retract. The zipper head interception buckle 612 is reset by the resilience of the spring to limit the zipper head again, completing the blanking of one zipper head.

[0117] S3. Feeding: The fixture 603 is located at the blanking end of the blanking mechanism 601 and is at an inclined angle with the blanking channel 609. After the zipper head has fallen, the fixture 603 catches the fallen zipper head. The telescopic movement of the feeding cylinder 602 drives the fixture 603 to displace towards the zipper head clamping device 4. During the displacement process, the rollers 622 on the fixture 603 move along the first inclined surface 620 and the second inclined surface 621 on the guide plate 619 and gradually return to a parallel state. The fixture 603 displaces to directly above the zipper head clamping device 4 to complete the feeding.

[0118] S4. Pre-installation of the zipper head: The zipper head clamping device 4 is initially in an open state. Then, the clamping mechanism 404 is displaced by the cylinder to push out the zipper head located on the fixture 603 and clamp the zipper head from the front and rear ends with the front clamping mechanism 403. The fixture 603 retracts by the contraction of the feeding cylinder 602. At this time, the zipper head is clamped on the zipper head clamping device 4. The zipper head clamping device 4 rises through the lifting mechanism to clamp the zipper head between the zipper head limiting member 7 and the zipper head clamping device 4, completing the pre-installation of the zipper head.

[0119] S5. Zipper feeding: The air rod of the pressing cylinder 205 with the rubber block extends and retracts, driving the rubber block to pass through the hole on the upper plate 202 and press on the zipper to clamp the zipper. Then, another cylinder extends and retracts to drive the lower plate 203 to displace horizontally to send out the zipper, making the zipper exposed on one side of the zipper cutting device 3, completing the zipper feeding.

[0120] S6. Installation of the zipper and the zipper head: The conveying mechanism 103 drives the conveyor belt to displace through the motor, driving the zipper tearing device 5 to displace back and forth. The zipper tearing device 5 first displaces forward through the zipper head limiting member 7 and clamps the zipper exposed on one side of the zipper cutting device 3. The pressing cylinder 205 releases the zipper, and the cylinder drives the lower plate 203 to displace backward and retract; the zipper tearing device 5 clamps the zipper and displaces backward to pull out the zipper, making the zipper penetrate into the gap between the zipper head clamping device 4 and the zipper head limiting member 7, and the zipper head slightly penetrates into the zipper port; the zipper tearing device 5 continues to displace backward, and the rotating member 505 rotates through the cam structure to drive the port of the zipper to open outward. At the same time, the zipper tearing device 5 also displaces to both sides through the cam structure to tear the zipper into two halves. The zipper head gradually penetrates into the zipper. The zipper tearing device 5 continues to displace backward to gradually close the torn zipper, completing the installation of the zipper head and the zipper.

[0121] S7. Cut the zipper. The zipper is placed on the cutting platform 305. The zipper cutting device 3 drives the ultrasonic cutter 302 to press the zipper in a downward pressing manner through a cylinder, and drives the cutting platform 305 to move downward so that the zipper contacts the port of the cutting knife 303, and cuts the zipper by means of ultrasonic vibration. After the cutting is completed, the ultrasonic cutter 303 moves upward to reset, and the cutting platform 305 resets by the resilience of the spring at the lower end. The assembly of the zipper head and the zipper is completed automatically through the above seven steps. After the zipper cutting is completed, steps 1-7 are repeated for work.

[0122] Further, step S5 further includes: S51. Tear the zipper. During the process of the zipper tearing device 5 clamping the zipper and moving backward to tear it, the two chain tooth tapes on the zipper penetrate from the chain teeth into the groove 405 and then into the chain tooth tearing groove 406. When the zipper abuts against the guide block 429, the cam block 416 and the two cam shafts also come into contact. Continue to move the zipper, and the zipper port is torn in a V shape. The left clamping mechanism 403 and the right clamping mechanism 404 move to both sides to tear the zipper in half. The two steps of tearing the zipper are carried out simultaneously. Since the left clamping mechanism 403 and the right clamping mechanism 404 move to both sides constantly during operation, adding the step of tearing the zipper port in a V shape can achieve compatibility with different models of zipper heads.

[0123] S52. Close the zipper. After the zipper is torn, continue to pull the zipper backward. The two torn chain tooth tapes respectively enter the first chain tooth channel 430 and the second chain tooth channel 431 and move along their trajectories. Through the inclined guiding portion 432, the two chain tooth tapes enter the chain tooth closing groove 407, and the two chain tooth tapes gradually mesh during the displacement due to the decreasing width of the chain tooth closing groove 407.

[0124] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An automatic zipper threading device, characterized in that: It includes a workbench and a zipper feeding device, a zipper cutting device, a zipper head clamping device, a zipper head conveying device, and a zipper tearing device which are sequentially installed on the workbench from front to back, wherein the zipper feeding device, the zipper cutting device, the zipper head clamping device, and the zipper tearing device are in the same horizontal direction, and the zipper head conveying device is located on one side of the zipper head clamping device; It also includes a zipper head limiter located directly above the zipper head clamping device and a transmission mechanism installed on the workbench, and the zipper tearing device is installed on the transmission mechanism; the workbench is provided with a mounting groove, and a lifting mechanism is provided in the mounting groove, and the lifting mechanism is connected to the zipper head clamping device; The zipper feeding device is used for feeding the zipper; The zipper head conveying device is used to convey the zipper head to the top of the zipper head clamping device; The zipper head clamping device clamps the zipper head and moves upward through the lifting mechanism, so as to clamp the zipper head between the zipper head limiting piece and the zipper head clamping device; The zipper tearing device is displaced by a transmission mechanism, moves forward to clamp the zipper, then pulls out the zipper, tears the zipper and inserts into the zipper head; The zipper cutting device cuts the zipper by ultrasonic vibration.

2. The automatic zipper threading device according to claim 1, characterized in that: The zipper head conveying device includes a material dropping mechanism, a feeding cylinder and a rotatable clamp, the clamp is used to clamp the zipper head dropped from the material dropping mechanism, and the feeding cylinder drives the clamp to move and feed the zipper head to the top of the zipper head clamping device; The blanking mechanism comprises an arc-shaped blanking plate, a blanking channel for the zipper head to pass through is arranged at the center of the blanking plate, a push-out cylinder and a connecting block are arranged on the blanking plate, the push-out cylinder drives the connecting block to move, an opening coincident with the blanking channel is arranged at the end of the clamping block, a clamping block extending downward into the opening is arranged at the end of the clamping block, the zipper head is clamped by the clamping block, and the zipper head is driven to discharge by the displacement of the clamping block; The clamp includes an inclined state and a parallel state. The inclined state is at the same inclined angle as the blanking opening of the blanking plate. After the material is taken out, it is clamped and adjusted to the parallel state. The clamp is flipped and reset by a spring and a limit block.

3. The automatic zipper threading device according to claim 1, characterized in that: The zipper head clamping device comprises a base, a first moving mechanism installed on the base, a front clamping mechanism, and a rear clamping mechanism installed on the first moving mechanism. The front clamping mechanism and the rear clamping mechanism clamp the zipper head from the front and rear ends, and the rear clamping mechanism is driven by the first moving mechanism to move so as to clamp or release the zipper head. The clamping ends of the front clamping mechanism and the rear clamping mechanism are respectively provided with a front lifting platform and a rear lifting platform, the front and rear ends of the zipper head are respectively placed on the front lifting platform and the rear lifting platform, and the heights of the front lifting platform and the rear lifting platform are adjusted by a spring and an adjusting screw; A movable left clamp block and a movable right clamp block are respectively arranged on both sides of the rear lifting platform; an adjusting block which can be displaced up and down and is in a triangular shape is arranged directly below the rear lifting platform; the adjusting block is located at the center of the left clamp block and the right clamp block; the left clamp block and the right clamp block are respectively attached to the inclined surfaces on both sides of the adjusting block; the left clamp block and the right clamp block are driven to open or close to both sides through the up and down displacement of the adjusting block; the spring is located between the adjusting block and the rear lifting platform, and the height of the adjusting block is adjusted by the spring and the adjusting screw.

4. The automatic zipper threading device according to claim 1, characterized in that: The zipper tearing device includes a base plate, a second moving mechanism installed on the base plate, and a left clamping mechanism and a right clamping mechanism installed on the second moving mechanism for clamping the two sides of the zipper respectively. The left clamping mechanism and the right clamping mechanism are symmetrically designed and move in opposite directions. The ports of the left clamping mechanism and the right clamping mechanism are provided with rotating parts. After clamping the zipper, the zipper is driven to open outwards through the rotating parts, and the rotating parts are rotated by a cam structure.

5. The automatic zipper threading device according to claim 4, characterized in that: The left clamping mechanism and the right clamping mechanism each include an upper clamping rod, a lower clamping rod and a clamping cylinder at the rear end, a rotating member is installed at the upper end of the upper clamping rod, and two clamping cylinders are respectively installed at the upper end of the second moving mechanism; the upper clamping rod and the lower clamping rod are provided with an upper clamping block and a lower clamping block at the front end, and the ends are rotatably connected in the clamping cylinder, the zipper is clamped between the upper clamping block and the lower clamping block, and the upper clamping rod and the lower clamping rod clamp or release the zipper by closing up and down; the upper clamping block is connected to the rotating member, and the rotating member is rotated by the cam structure to drive the upper clamping block to rotate, thereby tearing open the zipper port; A linkage mechanism is arranged on the outer sides of the left clamping mechanism and the right clamping mechanism, and the upper clamping block and the lower clamping block are rotated synchronously through the linkage mechanism; the linkage mechanism comprises an upper connecting piece on the side of the upper clamping rod and a lower connecting piece on the side of the lower clamping rod, and the upper connecting piece and the lower connecting piece are respectively connected to the upper clamping block and the lower clamping block, and an extension piece extending upward is arranged on the side wall of the lower connecting piece and is attached to the side wall of the upper connecting piece, and when the upper connecting piece rotates, the lower connecting piece is driven to rotate through the extension piece, thereby realizing the synchronous rotation of the upper clamping block and the lower clamping block.

6. The automatic zipper threading device according to claim 1, characterized in that: The zipper cutting device includes a support, an ultrasonic tool installed on the zipper feeding device, a cutter installed on one side of the support and a movable block movably connected to the upper end of the support, a detachable cutting platform is provided on the movable block, the zipper is placed on the cutting platform, the top surface of the cutting platform is higher than the blade of the cutter, the zipper contacts the cutter by pressing the cutting platform downward by the ultrasonic tool, and is cut by ultrasonic vibration; a slide groove is provided on the cutting platform, and a chip removal groove is provided on the cutter.

7. The automatic zipper threading device according to claim 6, characterized in that: At least two connecting columns are arranged on the support, and springs are arranged on the connecting columns. The movable block is provided with connecting holes adapted to the connecting columns, the connecting holes penetrate the movable block, the connecting columns penetrate into the connecting holes, and the springs are against the lower end of the movable block.

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