Puller clamping device

Abstract

The utility model discloses a pull head clamping device, including upper die and lower die, the top of lower die is provided with pull head positioning slot, lower die is provided with lower die power device, and the pull head in the pull head positioning slot is clamped to upper die and lower die cooperation when lower die power device drives lower die and upper die to close, the pull head of one side of upper die is provided with pull -tab limiting part, and the pull -tab limiting part is used for limiting pull -tab. The pull head clamping device provided by the utility model can actively fix the pull -tab above the pull head through the pull -tab limiting part (such as suction nozzle, clamping jaw or electromagnet) additionally arranged on one side of the upper die, and the problem that the posture of the pull -tab is uncontrollable when the double -pull -tab pull head or the pull -tab mounting surface faces upward is solved.

Description

Technical Field

[0001] This utility model relates to a zipper head clamping device, belonging to the technical field of zipper production equipment. Background Technology

[0002] For example, Chinese Patent Application Publication No. CN 106213694 A discloses a double-trunk stamped zipper pull, which includes a zipper pull body with upper and lower trunk-shaped heads symmetrically formed on the upper and lower plates of the zipper pull body. Upper and lower pull tabs are correspondingly assembled between the upper and lower trunk-shaped heads and the upper and lower plates, and a support core is provided between the upper and lower plates. This type of double-pull tab zipper pull faces unique challenges in automated production.

[0003] A zipper pull clamping device positions the zipper pull on the zipper conveyor path, pulling the zipper belt through the puller to complete the zipper pull action. The zipper pull clamping device typically includes an upper module and a lower module. The lower module includes a lower left die and a lower right die, with a gap between them. The zipper pull is conveyed between the upper and lower modules, positioned on the lower left and right dies. At this point, the mounting surface of the zipper pull faces downwards, naturally hanging down in the gap between the lower left and right dies. The lower module then closes against the upper module (or the upper module closes against the lower module, or both the lower and upper modules close simultaneously), ultimately completing the zipper pull positioning. For example, Chinese Patent Publication No. CN 215501599 U discloses a zipper pull clamping device.

[0004] However, the aforementioned conventional zipper pull clamping device is only suitable for clamping and positioning a single-tack zipper pull, and the mounting surface of the zipper pull (the side with the zipper pull) needs to face downwards. The zipper pull naturally hangs between the lower left and lower right dies under its own weight, without interfering with the clamping and positioning of the zipper pull or the subsequent threading action. When using the aforementioned double-tack zipper pull, or when the mounting surface of the zipper pull faces upwards, the upper zipper pull lacks fixed support and will randomly lie at the tail of the zipper pull, or lie on the left or right sides of the zipper pull. It is also easily displaced by external forces (vibration). This unpredictable posture will not only interfere with the clamping action of the upper and lower dies, but also interfere with the completion of the subsequent threading process, causing minor damage to the zipper or even machine downtime. In particular, when the zipper pull lies horizontally at the tail of the zipper pull, the drooping zipper pull at the tail of the zipper pull will interfere with the gripper gripping the chain, affecting the traction of the chain.

[0005] In a zipper threading and cutting machine, the grippers need to first move to the zipper head holding device (or front end) to pull the zipper belt along, thereby completing the threading and cutting of the zipper tab. If the zipper tab dangles at the end of the zipper head, it will be in the path of the grippers, thus interfering with the grippers. This can result in the grippers colliding with the zipper tab and damaging the zipper head, or even the grippers failing to hold the zipper belt. Utility Model Content

[0006] The purpose of this invention is to provide a zipper clamping device to fix the upper tab of the zipper and eliminate the influence of the upper tab.

[0007] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0008] A zipper head clamping device includes an upper mold and a lower mold. The top of the lower mold is provided with a zipper head positioning groove. The lower mold is provided with a lower mold power device. When the lower mold power device drives the lower mold to close with the upper mold, the upper mold and the lower mold cooperate to clamp the zipper head in the zipper head positioning groove. A zipper tab limiting component is provided on one side of the upper mold. The zipper tab limiting component is used to limit the zipper tab.

[0009] The pull tab limiting component is a suction nozzle, a gripper, an electromagnet, or other component capable of positioning the pull tab.

[0010] The lower mold includes a lower moving mold and a lower fixed mold. The lower moving mold is equipped with a lower moving mold power device, which drives the lower moving mold to move closer to the lower fixed mold.

[0011] The slider positioning groove is composed of a moving slider limiting groove on the lower moving mold and a fixed slider limiting groove on the lower fixed mold.

[0012] The lower moving mold is provided with a lower moving mold guide rail. The lower moving mold power device drives the lower moving mold to slide along the lower moving mold guide rail, so that the lower moving mold moves closer to the lower fixed mold.

[0013] The upper mold and the lower fixed mold cooperate to clamp the pull head, and the pull tab limiting component is located on the lower moving mold side.

[0014] In order to avoid the elephant trunk head and allow the upper and lower molds to better clamp the slider in the slider positioning groove, the bottom of the upper mold is provided with an avoidance groove.

[0015] In order to realize the lifting and lowering of the pull tab limiting component, the pull tab limiting component is provided with a lifting and lowering power device, which is used to drive the pull tab limiting component to lift and lower.

[0016] The pull head clamping device provided by this utility model can actively fix the pull tab above the pull head by adding a pull tab limiting component (such as a suction nozzle, gripper, or electromagnet) on one side of the upper die, thus solving the problem of uncontrollable pull tab posture when there are double pull tab pull heads or when the pull tab mounting surface is facing upwards. Specifically, the pull tab limiting component can fix the pull tab before or during clamping, preventing the pull tab from lying randomly at the tail or sides of the pull head, avoiding interference with the closing action of the upper and lower dies, and ensuring the stability of clamping and positioning; by fixing the upper pull tab, it prevents it from drooping in the gripper travel path and interfering with the gripper diameter, preventing the gripper from colliding with the pull tab and causing equipment stoppage or chain damage, significantly improving the reliability of the threading process. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of a zipper threading and cutting machine.

[0019] Figure 2 This is a schematic diagram of the zipper clamping device.

[0020] Figure 3 This is a schematic diagram of the zipper clamping device.

[0021] Figure 4 This is a schematic diagram of the lower mold section of the zipper clamping device.

[0022] Figure 5 This is a schematic diagram of the pull head flipping and pushing device.

[0023] Figure 6 This is a schematic diagram of the pull head groove structure of the pull head flipping and pushing device.

[0024] Figure 7 This is a schematic diagram of the pull head slide rail and pull head pushing device.

[0025] Figure 8 This is a schematic diagram of the back structure of the slider rail.

[0026] Figure 9 This is a schematic diagram of the pull head pushing device. Detailed Implementation

[0027] like Figure 1 As shown, the zipper threading and cutting machine includes a frame 1. The frame 1 is equipped with a zipper head clamping device 2, a zipper head flipping and pushing device 3, a zipper head slide rail 4, a vibrating plate 5, and a zipper head pushing device 6. The zipper head flipping and pushing device 3 and the zipper head slide rail 4 are located on the same side of the zipper head clamping device 2. The zipper head slide rail 4 is connected to the discharge port of the vibrating plate 5, which continuously supplies zipper heads to the zipper head slide rail 4. The zipper head pushing device 6 is mounted on the zipper head slide rail 4 and pushes the zipper head on the slide rail 4. The zipper head flipping and pushing device 3 catches the zipper head that slides off the slide rail 4 and pushes it to the zipper head clamping device 2. The zipper head clamping device 2 clamps and positions the zipper head, and then pulls the zipper through the zipper head to achieve the zipper threading action. Of course, the zipper threading and cutting machine also includes a cutting device, a chain traction device, and a chain positioning device, but these are all existing technologies and their specific structures and principles will not be described in detail here.

[0028] like Figure 2-4As shown, the pull head clamping device 2 includes a lower mold, which includes a lower fixed mold 21 and a lower moving mold 22. The lower fixed mold 21 is mounted on the lower mold base 23. The lower moving mold 22 is equipped with a lower moving mold power device 223, which is a cylinder (or other common linear motion mechanism, such as an electric cylinder). The lower moving mold power device 223 drives the lower moving mold 22 to move closer to the lower fixed mold 21. Of course, to improve the stability of the movement of the lower moving mold 22, a guiding mechanism can be provided for the lower moving mold 22. Specifically, the lower moving mold 22 is set on the lower moving mold slider 221, and the lower moving mold slider 221 is equipped with a lower moving mold slide rail 222. The lower moving mold power unit 223 drives the lower moving mold slider 221 to slide along the lower moving mold slide rail 222, so that the lower moving mold 22 moves closer to the lower fixed mold 21. Of course, the lower moving mold 22 can also be directly set on the lower moving mold slide rail 222, and the lower moving mold power unit 223 drives the lower moving mold 22 to slide along the lower moving mold slide rail 222, so that the lower moving mold 22 moves closer to the lower fixed mold 21. Of course, the guiding mechanism of the lower moving mold 22 can also adopt other common guiding mechanisms, such as a guide groove provided on the lower mold base 23, the bottom of the lower moving mold 22 being set in the guide groove, and the lower moving mold power unit 223 moving the lower moving mold 22 along the guide groove.

[0029] The top of the lower fixed mold 21 is provided with a fixed pull head limiting groove 211, and the top of the lower moving mold 22 is provided with a moving pull head limiting groove 212. The moving pull head limiting groove 212 and the fixed pull head limiting groove 211 constitute a pull head positioning groove. When the lower moving mold power device 223 drives the lower moving mold 22 to move closer to the lower fixed mold 21, the pull head positioning groove (moving pull head limiting groove 212 and fixed pull head limiting groove 211) limits the pull head and prevents the pull head from moving laterally at the top of the lower fixed mold 21.

[0030] The lower mold base 23 is provided with a lower mold power device 25, which is a cylinder (or other common linear motion mechanism, such as an electric cylinder). The lower mold power device 25 drives the lower mold base 23 to move upward, thereby causing the lower mold to move upward. Of course, to improve the stability of the lower mold's up-and-down movement, the lower mold base 23 can be equipped with a guide mechanism. Specifically, the lower mold base 23 is set on the lower mold slider 24, the lower mold slider 24 is equipped with a lower mold slide rail 242, the lower mold slide rail 242 is set on the lower mold fixing plate 26, and the lower mold power device 25 drives the lower mold slider 24 to move along the lower mold slide rail 242 on the lower mold fixing plate 26, thereby causing the lower mold to move upward. Of course, the lower mold base 23 can also be directly set on the lower mold slide rail 242, and the lower mold power device 25 drives the lower mold base 23 to move upward along the lower mold slide rail 242. Of course, the guide mechanism can also adopt other common forms. For example, the lower mold base 23 is set in the lower mold base groove, and the lower mold power device 25 drives the lower mold base 23 to move along the lower mold base groove.

[0031] An upper mold 27 is provided above the lower fixed mold 21. When the lower mold power device 25 drives the lower mold to move upward, the upper mold 27 cooperates with the lower fixed mold 21 to clamp the slider in the slider positioning groove. In order to better clamp the slider, increase the contact area between the upper mold 21 and the slider, and avoid the slider's trunk tip, the upper mold 27 can be provided with a clearance groove 271.

[0032] A pull tab limiting component 28 is provided on one side of the upper mold 27. The pull tab limiting component 28 is located above the lower moving mold 22 and is used to limit the pull tab. Specifically, the pull tab limiting component 28 is an air nozzle, which is connected to an air pump through an air pipe. When the air pump is working, the pull tab is attracted to the air nozzle, thereby limiting the pull tab. Of course, the pull tab limiting component 28 can also be an electromagnet, which attracts the pull tab to achieve the limitation of the pull tab, or a gripper, which holds the pull tab to achieve the limitation of the pull tab, or other common components that can attract / adhere to the pull tab.

[0033] In order to realize the lifting and lowering of the pull tab limiting component 28, the pull tab limiting component 28 is provided with a limiting component lifting power device 281, which is a cylinder (or other common linear motion mechanism, such as an electric cylinder).

[0034] like Figure 5-6 As shown, the zipper pull flipping and pushing device 3 includes a zipper pull groove 31 with its opening facing upwards. The zipper pull groove 31 is rotatably connected to the flipping base 33. The zipper pull groove 31 is equipped with a flipping power device 34, which is a cylinder (or other common linear motion mechanism, such as an electric cylinder). The flipping power device 34 drives the zipper pull groove 31 to rotate on the flipping base 33, causing the zipper pull groove 31 to flip into a flat state. Specifically, the zipper pull groove 31 is located on one side of the flipping table 32. The flipping table 32 is rotatably connected to the flipping base 33 via a rotating shaft 321. The flipping table 32 is movably connected to the piston of the cylinder via a chain (or other common movable connection method, such as a movable connection via a shaft). The cylinder pushes the flipping table 32 via the chain, and the flipping table 32 rotates along the rotating shaft on the flipping base 33, thereby causing the zipper pull groove 31 to flip into a flat state. Of course, the rotatable connection between the flipping table 32 and the flipping base 33 can also be other common rotating mechanisms, such as a hinge. Of course, the zipper pull groove 31 can also be directly rotatably connected to the flipping base 33.

[0035] The tilting seat 33 is equipped with a traveling power device, which has a first stroke and a second stroke. The traveling power device drives the tilting seat 33 to move. In the first stroke, it pushes the slider groove 31 between the slider slide rail 4 and the slider clamping device 2. In the second stroke, it pushes the slider groove 31 to the slider clamping device 2. Specifically, the traveling power device includes a first stroke power device 36 and a second stroke power device 38. The tilting seat 33 is mounted on the traveling block 35, which is connected to the first stroke power device 36. The first stroke power device 36 is a cylinder (or other common linear motion mechanism). The first stroke power device 36 is mounted on a power seat 37, which is connected to the second stroke power device 38. The second stroke power device 38 is also a cylinder (or other common linear motion mechanism). The second stroke power device 38 is mounted on a power mounting base 39. The device 36 drives the traveling block 35 to move, causing the slider groove 31 to move between the slider slide rail 4 and the slider clamping device 2. The second stroke power device 38 drives the power seat 37 to move, and the power seat 37 drives the traveling block 35 to move, thereby pushing the slider groove 31 to the slider clamping device 2. Alternatively, the second stroke power device 38 drives the power seat 37 to move, and the power seat 37 drives the traveling block 35 to move, pushing the slider groove 31 between the slider slide rail 4 and the slider clamping device 2. The first stroke power device 36 drives the traveling block 35 to move, pushing the slider groove 31 to the slider clamping device 2. Of course, the tilting seat 33 can also be directly mounted on the first stroke power device 36, and the first stroke power device 36 directly drives the tilting seat 33 to move. Of course, the traveling power device can also have two or more strokes to provide two or more displacements. Of course, the traveling power device can also be an electric cylinder (or other similar power device) capable of providing multi-stage stroke control to provide more precise control.

[0036] Of course, to improve the stability of the movement of the traveling block 35, a guiding mechanism can be provided for the traveling block 35. Specifically, the traveling block 35 is equipped with a traveling block guide rail 351, and the traveling power device drives the traveling block 35 to slide along the traveling block guide rail 351. Of course, the guiding mechanism can also adopt other common forms. For example, the traveling block 35 is set in a traveling block groove, and the traveling power device drives it to move along the traveling block groove.

[0037] like Figure 6 As shown, the pull head groove 31 consists of a movable plate 311 and a fixed plate 312. The tail of the movable plate 311 is rotatably connected to the fixed plate 312 via a pivot 312. The movable plate 311 rotates on the fixed plate 312, causing its head to move away from the fixed plate 312. Of course, the movable plate 311 can also be rotatably connected to the fixed plate 312 using other common rotating connection methods.

[0038] An elastic component 314 is provided between the movable block 311 and the fixed block 312. The elastic component 314 is a tension spring (or other common elastic components, such as a rubber band). The elastic component 314 is used to make the movable block 311 rotate on the fixed block 312, so that the head end of the movable block 311 moves closer to the fixed block 312 and resets the pull head groove 31. Specifically, a first limiting post is provided on the movable block 311, and a second limiting post is provided on the fixed block 312. One end of the tension spring is connected to the first limiting post, and the other end of the tension spring is connected to the second limiting post. When the movable block 311 is subjected to force and rotates on the fixed block 312, the head end of the movable block 311 moves away from the fixed block 312, and the tension spring deforms under force. After the movable block 311 is freed from the external force, the tension spring returns to its original shape, so that the movable block 311 is subjected to force and rotates on the fixed block 312, and the head end of the movable block 311 moves closer to the fixed block 312 and resets the pull head groove 31.

[0039] A movable guide plate 315 and a fixed guide plate 316 are provided inside the slider slot 31. The movable guide plate 315 is mounted on a movable plate 311 and moves with the movable plate 311. The fixed guide plate 316 is mounted on a fixed plate 312. There is a gap between the movable guide plate 315 and the fixed guide plate 316. When the slider slides into the slider slot 31, the movable guide plate 315 and the fixed guide plate 316 extend between the upper and lower plates of the slider. The slider mechanism is located within the gap between the movable guide plate 315 and the fixed guide plate 316. The movable guide plate 315 and the fixed guide plate 316 are located on both sides of the slider mechanism to support the slider sliding down the slider rail. Of course, the gap between the movable guide plate 315 and the fixed guide plate 316 can also be set only at the top of the slider slot 31, such as... Figure 6 As shown, the fixed plate guide plate 316 has a specific notch, and the movable plate guide plate 315 and the notch form the distance for accommodating the mechanism; of course, the notch can also be set on the movable plate guide plate 315, and the fixed plate guide plate 316 and the notch form the distance for accommodating the mechanism. Of course, the pull head groove 31 can adopt other common pull head groove forms. For example, the movable block 311 is provided with a movable block pull head groove, and the fixed block 312 is provided with a fixed block groove. The movable block pull head groove and the fixed block groove are arranged opposite to each other, and the left and right sides of the pull head are respectively located in the two pull head grooves to support the pull head sliding down the slide rail.

[0040] To limit the lying posture of the upper pull tab (the pull tab lying in the pull head groove 31 when it is flipped to a flat state) on the pull head groove, and to prevent the upper pull tab from swinging and displacing on the pull head groove and leaving the working area of ​​the pull tab limiting component 28 when the pull head groove 31 moves, limiting blocks are provided on both sides of the pull head groove 31. Specifically, the limiting components on both sides can be composed of the aforementioned first limiting post and second limiting post. The first limiting post and the second limiting post are located on the front side of the pull head groove 31 (when the pull head groove 31 is flipped to a flat state, the two limiting posts are flipped to an upright state and located above the pull head groove 31) and on both sides of the pull head groove 31. The pull head slides into the pull head groove 31, and the upper pull tab in the pull head groove 31 falls between the first limiting post and the second limiting post. The first limiting post and the second limiting post limit the left and right movement of the upper pull tab to prevent it from swinging under force. Of course, limiting blocks can be provided on both sides of the pull tab groove 31 independently, or they can be composed of other components on the front side of the pull tab groove 31. Naturally, the distance between the two limiting blocks should be greater than the width of the front pull tab so that the pull tab can fall between the two limiting blocks.

[0041] like Figure 7-9 As shown, the slider rail 4 includes a left slide rail plate 41 and a right slide rail plate 42. A left slide rail piece 43 is disposed on the left slide rail plate 41, and a right slide rail piece 44 is disposed on the right slide rail plate 42. There is a gap between the left slide rail piece 43 and the right slide rail piece 44, which is used for the slider mechanism to pass through. When the slider is located in the slider rail 4, the left slide rail piece 43 and the right slide rail piece 44 are used to extend between the upper and lower plates of the slider, and the slider mechanism is located within the gap between the left slide rail piece 43 and the right slide rail piece 44. The left slide rail piece 43 and the right slide rail piece 44 are respectively located on both sides of the slider mechanism.

[0042] A slider guide rail 4 is provided with a slider blocking component, which includes a limiting pin 45. The limiting pin 45 has a limiting pin sliding hole. The limiting pin 45 slides back and forth along the limiting pin sliding hole. The limiting pin 45 is provided with an elastic component, which is a spring (or other common elastic component). The spring is located at the tail end of the limiting pin 45, so that the head end of the limiting pin 45 extends out of the limiting pin sliding hole to block the slider in the slider guide rail 4 and prevent it from disengaging from the slider guide rail 4 when not necessary. Preferably, the head end of the limiting pin 45 has a pressing slope. When the slider presses the pressing slope at the head end of the limiting pin 45, the limiting pin 45 slides back and forth along the limiting pin sliding hole and retracts into the limiting pin sliding hole to make way for the slider, and the spring deforms to make way; when the limiting pin 45 is freed from the squeezing force of the slider, the spring returns to its original shape, so that the head end of the limiting pin 45 extends out of the limiting pin sliding hole, thereby limiting the next slider.

[0043] A pull-head pushing component is provided on the pull-head slide rail 4. The pull-head pushing component includes a feed plate 61 inside the pull-head slide rail 4. The plate 61 is connected to one side of the feed rod 62. The feed rod 62 is rotatably connected to the pusher mounting plate 63 via a feed rod pivot 621. The feed rod 62 is equipped with a cylinder 64 (or other common linear motion mechanism). The cylinder 64 drives the feed rod 62 to rotate on the pusher mounting plate 63, causing the plate 61 to disengage from / extend into the pull-head slide rail 4. The pusher mounting plate 63 is equipped with a pusher mounting plate slide rail 631 and a cylinder 65 (or other common linear motion mechanism). The cylinder 65 drives the pusher mounting plate 63 to slide along the pusher mounting plate slide rail 631, causing the plate 61 to move within the pull-head slide rail 4.

[0044] Cylinder 65 drives the pusher mounting plate 63 to slide along the pusher mounting plate slide rail 631. The clamping plate 61 pushes the pull head in the pull head slide rail 4, causing the pull head to pass through the limit pin 45 and then slide down along the pull head slide rail 4. After the pull head is pushed down, cylinder 64 drives the feed rod 62 to rotate on the pusher mounting plate 63, causing the clamping plate 61 to disengage from the pull head slide rail 4, avoiding the next pull head, and allowing the pusher pin to retract and reset. Then, cylinder 65 drives the pusher mounting plate 63 to slide and reset along the pusher mounting plate slide rail 631. After the pusher mounting plate slide rail 631 is reset, cylinder 64 drives the feed rod 62 to rotate on the pusher mounting plate 63, causing the clamping plate 61 to re-extend into the pull head slide rail 4 and be positioned above the pull head to be pushed.

[0045] In use, the slider groove 31 receives the slider head that slides off the slider head slide rail 4. The first stroke power unit 36 ​​drives the tilting seat 33 to move, pushing the slider groove 31 between the slider head slide rail 4 and the slider head clamping device 2. The tilting power unit 34 drives the slider groove 31 to rotate, causing it to lie flat. At this time, the slider head also lies flat. The second stroke power unit 38 drives the tilting seat 33 to continue moving, pushing the flat slider head between the upper and lower dies. The slider head is located between the lower fixed die 21 and the lower moving die 22. The lower moving die power unit... Driven by the 223, the moving mold 22 moves downward toward the fixed mold 21, and the moving pull head limiting groove 212 and the fixed pull head limiting groove 211 cooperate to limit the pull head; the second stroke power device 38 drives the flipping seat 33 to retract and reset, the pull head obstructs the movable plate 311, the movable plate 311 rotates on the fixed plate 314 away from the fixed plate 314 to avoid the pull head, so that the movable plate 311 can pass through the pull head. After the movable plate 311 is freed from the pull head obstruction, the elastic component 314 causes the head end of the movable plate 311 to rotate toward the fixed plate 316, resetting the pull head groove 31. Subsequently, after the flipping power device 34 drives the pull head groove 31 to rotate and reset, the first stroke power device 36 drives the flipping seat 33 to retract and reset, so that the pull head groove 31 resets to the tail end of the pull head slide rail 4.

[0046] Of course, the second stroke power unit 38 can first drive the flipping seat 33 to move forward, pushing the zipper head groove 31 between the zipper head slide rail 4 and the zipper head clamping device 2, and then the first stroke power unit 36 ​​can continue to drive the flipping seat 33 to move forward, pushing the flat zipper head between the upper mold and the lower mold.

[0047] Of course, the slider groove 31 can also flip when it disengages from the slider slide rail 4, or during the two-stage pushing process (when the second stroke power device 38 or the first stroke power device 36 pushes); or the slider groove 31 can flip at the end of the slider slide rail 4. Of course, in order to solve the problem of interference between the slider groove 31 and the slider slide rail 4, a clearance distance can be reserved between the slider groove 31 and the slider slide rail 4, or a non-interference cooperation method can be adopted; in this case, the traveling power device can have only one stroke, directly pushing the slider to the slider clamping device 2. Of course, the traveling power device can also have only one stroke, and the slider groove 31 flips during the process of moving from the end of the slider slide rail 4 towards the slider clamping device 2.

[0048] After the pull head groove 31 disengages from between the upper and lower molds, the lower mold power unit 25 drives the lower mold to move closer to the upper mold 27. The lower fixed mold 21 and the upper mold 27 cooperate to clamp the pull head, thereby achieving the positioning of the pull head and completing the subsequent threading process.

[0049] When the pull head is pushed between the upper and lower dies, the movable pull head limiting groove 212 and the fixed pull head limiting groove 211 cooperate to limit the pull head, and the pull tab limiting component 28 attracts the upper pull tab. Of course, the limiting component lifting power device 281 can drive the pull tab limiting component 28 to move upward, so that the pull tab limiting component 28 drives the upper pull tab to move upward. Of course, the limiting component lifting power device 281 can also first drive the pull tab limiting component 28 to move downward, and then attract the pull tab.

[0050] Because the opening of the pull head groove 31 faces upward, when the pull head slides into the vertical (or nearly vertical, or tilted vertical) pull head groove 31, the pull head is in a vertical (or nearly vertical, or tilted vertical) state, and the two pull tabs will naturally hang down on both sides of the pull head due to their own weight; the flipping power device 34 drives the pull head groove 31 to rotate, turning the pull head groove 31 to a flat state. At this time, the pull head also changes from a vertical state to a flat state, and the pull tab below the pull head will naturally hang down below the pull head, while the pull tab above the pull head will lie on the pull head groove 31 and face the bottom of the pull head groove 31; when the traveling power device drives the pull head groove to travel between the upper and lower dies, the pull tab above the pull head will remain in a lying state facing the bottom of the pull head groove and located on the side of the lower moving die 22. Because the lower pull tab is located between the lower moving mold 22 and the lower fixed mold 21, and the upper pull tab lies on the pull head groove 31, the upper pull tab will not interfere with the moving pull head limiting groove and the fixed pull head limiting groove to limit the pull head. Also, because the upper pull tab lies on the side of the lower moving mold, the upper pull tab will not interfere with the upper mold and the lower fixed mold to clamp the pull head, thus realizing the clamping and positioning of the double pull tab pull head.

[0051] The above embodiments do not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A slider clamping device, comprising an upper die and a lower die, wherein the top of the lower die is provided with a slider positioning groove, and the lower die is provided with a lower die power device, wherein when the lower die power device drives the lower die to close with the upper die, the upper die and the lower die cooperate to clamp the slider in the slider positioning groove; characterized in that: A pull tab limiting component is provided on one side of the upper mold, and the pull tab limiting component is used to limit the pull tab.

2. The zipper clamping device according to claim 1, characterized in that: The pull tab limiting component is a suction nozzle or a gripper.

3. The zipper clamping device according to claim 1, characterized in that: The lower mold includes a lower moving mold and a lower fixed mold. The lower moving mold is equipped with a lower moving mold power device, which drives the lower moving mold to move closer to the lower fixed mold.

4. The zipper clamping device according to claim 3, characterized in that: The slider positioning groove is composed of a moving slider limiting groove on the lower moving mold and a fixed slider limiting groove on the lower fixed mold.

5. The zipper clamping device according to claim 3 or 4, characterized in that: The lower moving mold is provided with a lower moving mold guide rail, and the lower moving mold power device drives the lower moving mold to slide along the lower moving mold guide rail.

6. The zipper clamping device according to claim 3, characterized in that: The upper mold and the lower fixed mold cooperate to clamp the pull head, and the pull tab limiting component is located on the lower moving mold side.

7. The zipper clamping device according to claim 1, characterized in that: The bottom of the upper mold is provided with a clearance groove.

8. The zipper clamping device according to claim 1, characterized in that: The pull tab limiting component is equipped with a lifting power device for the limiting component, which is used to drive the pull tab limiting component to rise and fall.

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