Zipper pulling and pushing mechanism

Abstract

The utility model discloses a zip fastener traction push mechanism, including the guide rail board, the guide rail board is provided with two clamping jaws left and right, two clamping jaws are provided with clamping jaw front mobile force mechanism respectively, clamping jaw front mobile force mechanism is used for driving clamping jaw to be close to zip fastener, the guide rail board is provided with zip fastener advancing power mechanism, zip fastener advancing power mechanism drives the guide rail board to move to the right side and provides power for zip fastener advancing, after right -hand clamping jaw draws zip fastener end portion to the puller, left -hand clamping jaw pushes zip fastener into the puller, the utility model discloses through right -hand clamping jaw and draw the chain belt to the puller of wearing head mechanism, then through left -hand clamping jaw and push the chain belt into the puller, effectively avoided the problem that the chain belt deformed and could not wear into the puller, realized the automatic wearing head of vehicle zip fastener.

Description

Technical Field

[0001] This utility model belongs to the technical field of zipper processing equipment, specifically relating to a zipper traction and pushing mechanism. Background Technology

[0002] A zipper feeder is an automated device used to attach the zipper pull to a zipper, typically integrating feeder and cutting processes. For example, patent document CN109393661B discloses a zipper feeder that includes a feeding mechanism, a chain separating mechanism, a feeder mechanism, a cutting mechanism, a drag chain manipulator, and a conveyor belt assembly. The feeding mechanism includes a chain feeder and a zipper pull feeder. These components are sequentially arranged on a frame along the conveyor direction of the chain. The chain feeder includes a guide wheel on the frame, a base on the frame, a chain slide on the base, and a pressing mechanism on the chain slide. The chain belt slide is slidably mounted on the base, and the sliding direction of the chain belt slide is parallel to the conveying direction of the chain belt to the threading mechanism. The chain belt feeding mechanism also includes a horizontal drive mechanism fixedly mounted on the base for driving the chain belt slide to reciprocate. The pressing mechanism includes a cover plate fixed on the chain belt slide, with a belt conveying gap reserved between the cover plate and the chain belt slide. The belt conveying gap should allow the chain belt to slide freely. The pressing mechanism also includes a pressing telescopic cylinder mounted on the cover plate. The telescopic end of the pressing telescopic cylinder is vertically mounted and points towards the base. The telescopic end of the pressing telescopic cylinder passes through the cover plate and can move freely up and down relative to the cover plate. A pressing block is fixedly mounted on the telescopic end of the pressing telescopic cylinder. The chain belt slide is located at the position farthest from the threading mechanism. The pressing mechanism keeps the chain belt and the chain belt slide relatively fixed. The horizontal telescopic cylinder drives the chain belt to slide towards the threading mechanism until the horizontal drive mechanism reaches the closest position to the threading mechanism, thereby conveying the chain belt to the threading mechanism.

[0003] Automotive zippers are special zippers designed for the automotive environment, requiring higher standards in durability, strength, environmental adaptability, and safety. Automotive zippers have narrower and stiffer chains, and their zipper pulls are larger than standard zipper pulls. When using zipper pull insertion equipment, the chain needs to be inserted into the zipper pull from one side. However, existing zipper pull insertion equipment has the following problems:

[0004] 1. The head end of the chain needs to extend beyond the chain pushing mechanism, and the extension distance needs to cross the head-passing mechanism; otherwise, the drag chain robot cannot pull the chain forward from the other side of the head-passing mechanism.

[0005] 2. Although the chain pushing mechanism can reach the closest position to the threading mechanism, there is still a gap between them. This inevitably requires extending the distance of the chain extension and increasing the difficulty of the chain threading into the pull head.

[0006] 3. Although automotive zipper chains are narrow and stiff, they lack rigidity. Longer chains are prone to arching and deforming during the insertion of the zipper pull, affecting the insertion process and potentially causing equipment downtime.

[0007] 4. The chain extends a long distance, and the chain head is prone to deformation and displacement, making it impossible for the chain to pass through the pull tab. Utility Model Content

[0008] To solve the above problems, this utility model provides a zipper traction and pushing mechanism, which can both pull the zipper belt to the threading mechanism and push the zipper belt into the zipper head, thereby realizing the automatic threading of automotive zippers.

[0009] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0010] The zipper traction and pushing mechanism includes a guide rail plate with two grippers arranged on the left and right sides. Each gripper is equipped with a gripper forward movement force mechanism, which drives the grippers to approach the zipper. The guide rail plate is also equipped with a zipper travel power mechanism, which drives the guide rail plate to move to the right to provide power for the zipper to travel. After the right gripper pulls the end of the zipper to the zipper head, the left gripper pushes the zipper into the zipper head.

[0011] The zipper is guided and positioned by a chain guide mechanism (or other similar mechanism), and the zipper pull is positioned by a pull-through mechanism (or other similar mechanism). In use, the zipper head extends beyond the end of the chain guide mechanism. The right gripper's forward movement mechanism drives the right gripper to approach the tail end of the chain guide mechanism, clamping the zipper. The zipper travel mechanism drives the guide rail to move to the right, pulling the zipper head to the zipper pull. The left gripper's forward movement mechanism drives the left gripper to approach the zipper, clamping it. At this point, the right gripper releases the zipper and resets to its rearward position. The zipper travel mechanism continues to drive the guide rail to move to the right, and the right gripper continues to pull the zipper to the right, pushing the zipper into the zipper pull.

[0012] The zipper travel power mechanism includes a guide rail and a guide rail power device, wherein the guide rail power device is used to drive the guide rail to reciprocate along the guide rail.

[0013] The guide rail includes a first guide rail and a second guide rail arranged side by side. The power unit of the guide rail includes a ball screw and a servo motor. The ball screw is located between the first guide rail and the second guide rail. Screw positioning blocks are rotatably connected to both ends of the ball screw. A screw nut is connected to the ball screw. The screw nut is located between the two screw positioning blocks and connected to the guide rail. The servo motor drives the ball screw to rotate, and the screw nut drives the guide rail to slide along the guide rail.

[0014] The gripper forward movement force mechanism includes a gripper forward movement guide rail and a gripper forward movement force device. The gripper forward movement force device is used to drive the gripper to move closer to the zipper along the gripper forward movement guide rail.

[0015] The gripper includes a gripper groove, an upper clamping piece is disposed within the gripper groove, and a lower clamping piece is fitted onto the upper clamping piece. The upper clamping piece is provided with an upper clamping piece guide post, which is located within an upper clamping piece guide post hole in the groove wall of the gripper groove and slides reciprocally along the upper clamping piece guide post hole. The tail of the upper clamping piece is located between the clamping push block and the gripper groove. The upper clamping piece is provided with an upper clamping piece cylindrical pin, which is located within an upper clamping piece guide inclined hole in the clamping push block and slides reciprocally along the upper clamping piece guide inclined hole. The clamping push block is provided with a clamping power device, which drives the clamping push block to slide reciprocally along the gripper groove. The upper clamping piece guide inclined hole guides the upper clamping piece cylindrical pin, which drives the upper clamping piece guide post to slide along the upper clamping piece guide post hole, causing the upper clamping piece to move closer to / away from the lower clamping piece.

[0016] The lower clamping piece is provided with a lower clamping piece guide post, which is located in the lower clamping piece guide post hole in the groove wall of the jaw slide and slides back and forth along the lower clamping piece guide post hole. The lower clamping piece is provided with a lower clamping piece cylindrical pin, which is located in the lower clamping piece guide inclined hole of the clamping push block and slides back and forth along the lower clamping piece guide inclined hole. The lower clamping piece guide inclined hole and the upper clamping piece guide inclined hole are arranged opposite to each other. The clamping power device drives the clamping push block to slide back and forth along the jaw slide groove. The lower clamping piece guide inclined hole guides the lower clamping piece cylindrical pin, and the lower clamping piece cylindrical pin drives the lower clamping piece guide post to slide back and forth along the lower clamping piece guide post hole, so that the lower clamping piece moves closer to / away from the upper clamping piece.

[0017] To better guide the movement of the upper and lower clamping plates, the upper clamping plate is provided with an upper clamping plate groove bottom guide post. The upper clamping plate groove bottom guide post is located in the groove bottom guide strip hole of the clamping claw slide groove and slides back and forth along the groove bottom guide strip hole. The groove bottom guide strip hole is set along the movement direction of the upper clamping plate. The lower clamping plate is provided with a lower clamping plate groove bottom guide post. The lower clamping plate groove bottom guide post is located in the groove bottom guide strip hole and slides back and forth along the groove bottom guide strip hole.

[0018] In order to limit the movement of components in the gripper slide groove and improve the working stability of the gripper, the gripper slide groove is provided with a gripper slide groove cover plate.

[0019] In order to detect the position of the two grippers and realize automated control, the guide rail plate is provided with a sensing plate, and multiple sensors are provided on the same side of the sensing plate, and the multiple sensors are arranged sequentially along the travel direction of the guide rail plate.

[0020] This invention uses the right-side gripper to pull the chain to the zipper head of the zipper threading mechanism, and then uses the left-side gripper to push the chain into the zipper head, effectively avoiding the problem of the chain being deformed and unable to be threaded into the zipper head, thus realizing the automatic threading of automotive zippers. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the zipper threading and cutting device.

[0023] Figure 2 This is a schematic diagram of the chain guide mechanism.

[0024] Figure 3 This is a schematic diagram of the zipper traction and pushing mechanism.

[0025] Figure 4 This is a schematic diagram of the zipper traction and pushing mechanism.

[0026] Figure 5 This is a schematic diagram of the gripper slide structure.

[0027] Figure 6 This is a schematic diagram of the gripper section.

[0028] Figure 7 This is a schematic diagram of the gripper section.

[0029] Figure 8 This is a schematic diagram of the gripper structure. Detailed Implementation

[0030] like Figure 1-8 As shown, the zipper threading and cutting device includes a frame 1. The frame 1 is equipped with a zipper traction and pushing mechanism, a zipper guide mechanism 2, a cutting mechanism, a threading mechanism 3, and a drag chain manipulator. The zipper guide mechanism 2, the cutting mechanism, the threading mechanism 3, and the drag chain manipulator are arranged sequentially from right to left on the frame 1. The zipper traction and pushing mechanism is located behind the threading mechanism 3. Figure 2 As shown, the chain guide mechanism 2 includes a chain slide 21 with a cover plate 22 on it. A conveyor belt gap is reserved between the cover plate 22 and the chain slide 21, allowing the chain to slide freely. The chain guide mechanism 2 guides the chain. The threading mechanism 3 clamps and positions the zipper head onto the conveyor path of the chain. The drag chain manipulator pulls the zipper to the left of the threaded head to continue moving forward. The cutting mechanism cuts the zipper. Of course, other common forms can also be used for the chain guide mechanism. It should be noted that how the threading mechanism 3 clamps and positions the zipper head onto the conveyor path of the chain, how the drag chain manipulator clamps and pulls the zipper, and how the cutting mechanism cuts the zipper are all existing technologies and are not innovative features of this utility model. The specific structure and principle will not be described in detail here.

[0031] like Figure 3-4 As shown, the zipper traction and pushing mechanism includes a guide plate 4. The bottom of the guide plate 4 is provided with a guide plate rail and a guide plate power device. The guide plate rail is arranged along the left and right direction of the frame 1. The guide plate power device is used to drive the guide plate to reciprocate along the guide plate rail. Specifically, the guide rail includes a first guide rail 41 and a second guide rail 42 arranged side by side. The guide rail power unit includes a ball screw 7 and a servo motor 73 (or other similar power source). The ball screw 7 is located between the first guide rail 41 and the second guide rail 42. The right end of the ball screw 7 is rotatably connected to the right end screw positioning block 71, and the left end of the ball screw 7 is rotatably connected to the left end screw positioning block 72. The servo motor 73 drives the ball screw 7 to rotate on the right end screw positioning block 71 and the left end screw positioning block 72. The ball screw 7 is threaded with a screw nut, which is located between the right end screw positioning block 71 and the left end screw positioning block 72 and connected to the guide rail 4. The servo motor 73 drives the ball screw 7 to rotate, and the screw nut drives the guide rail 4 to slide back and forth along the guide rail (the first guide rail 41 and the second guide rail 42).

[0032] Two grippers are arranged on the left and right sides of the guide plate 4. The right gripper 5 is arranged on the right slide plate 51. The right slide plate 51 is provided with a right gripper forward moving guide rail 52 and a right gripper forward moving force device 53. The right gripper forward moving guide rail 52 is located at the bottom of the right slide plate 51 and is arranged along the front and rear direction of the frame 1. The right gripper forward moving force device 53 is a cylinder (or other similar power mechanism). The right gripper forward moving force device 53 is used to drive the right slide plate 51 to slide back and forth along the right gripper forward moving guide rail 52, so that the right gripper 5 moves closer to / away from the chain belt. The right gripper 5 is used to clamp / release the chain belt. The left gripper 6 is mounted on the left slide plate 61. The left slide plate 61 is equipped with a left gripper forward guide rail 62 and a left gripper forward moving force device 63. The left gripper forward guide rail 62 is located at the bottom of the left slide plate 61 and is arranged along the front-back direction of the frame 1. The left gripper forward moving force device 63 is a cylinder (or other similar power mechanism). The left gripper forward moving force device 63 is used to drive the left slide plate 61 to slide back and forth along the left gripper forward guide rail 62, so that the left gripper 6 moves closer to / away from the chain belt.

[0033] The right gripper forward movement force device 52 drives the right gripper 5 to the end of the chain guide mechanism 2, and the right gripper 5 clamps the zipper at the end of the chain guide mechanism 2; the servo motor 73 drives the ball screw 7 to rotate, and the screw nut drives the guide plate 4 to slide to the right along the guide plate, and the right gripper 5 brings the zipper head to the pull head of the threading mechanism 3; the left gripper forward movement force device 63 drives the left gripper 6 to approach the chain, and the left gripper 6 clamps the chain; the right gripper 5 releases the chain, and the right gripper forward movement force device 53 drives the right gripper 5 to reset to the rear to avoid the threading mechanism 3, so that the left gripper 6 can approach the pull head of the threading mechanism 3; the servo motor 73 continues to drive the ball screw 7 to rotate, and the screw nut drives the guide plate 4 to continue to slide to the right along the guide plate, and the left gripper 6 pushes the zipper, the zipper passes through the pull head, and extends out to the other side of the threading mechanism 3; the drag chain robot clamps the chain that extends out of the threading mechanism 3 and pulls the chain forward.

[0034] After the zipper pull is inserted into the zipper, the zipper pull mechanism 3 resets and releases the zipper pull so that the drag chain robot can pull the zipper forward. After the drag chain robot pulls the zipper forward, the cutting mechanism cuts the zipper at the end of the chain guide mechanism 2, and then the next work cycle begins.

[0035] To detect the position of the two grippers and automate the zipper threading and cutting device, the guide rail plate 4 is equipped with a sensing plate 91. Three sensors are located on the same side of the sensing plate 91, and these three sensors are arranged sequentially along the left-right direction of the frame 1 (two of which are as follows: ...). Figure 3 (92 and 93 in the figure) The corresponding sensor is triggered by the sensing plate 91 to confirm the position of the guide plate 4, and then determine the position of the gripper, so as to facilitate the automated control of the traction and pushing of the chain. The three sensors realize the positioning of three positions: the first is when the right gripper is at the end of the chain guide mechanism 2, the second is when the right gripper moves to the threading mechanism 3, and the third is when the left gripper moves to the threading mechanism 3.

[0036] like Figure 5-8 As shown, the gripper includes a gripper groove 81 with its opening facing the right side of the frame 1 (or of course, the left side). The upper groove wall of the gripper groove 81 is provided with an upper clamping guide post hole 811, and the lower groove wall of the gripper groove 81 is provided with a lower clamping guide post hole 812. The bottom of the gripper groove 81 is provided with a bottom guide strip hole 813, which is arranged along the vertical direction of the frame 1.

[0037] The upper clamping plate 82 and the lower clamping plate 83 are disposed within the jaw sliding groove 81, located between the upper groove wall and the lower groove wall, with the upper clamping plate 82 located on the upper groove wall side and the lower clamping plate 83 located on the lower groove wall side. An upper clamping plate guide post 821 is provided at the tail of the upper clamping plate 82, located within the upper clamping plate guide post hole 811, and slides reciprocally along the upper clamping plate guide post hole 811. A lower clamping plate guide post 831 is provided at the tail of the lower clamping plate 83, located within the lower clamping plate guide post hole 812, and slides reciprocally along the lower clamping plate guide post hole 812. The upper clamping piece 82 has a cylindrical pin hole at its tail end, and a cylindrical pin 822 is installed inside the cylindrical pin hole. Both ends of the cylindrical pin 822 protrude from the upper clamping piece 82. One end of the cylindrical pin 822 is located in the guide strip hole 813 at the bottom of the groove and slides back and forth along the guide strip hole 813. The other end of the cylindrical pin 822 is located in the guide inclined hole 841 at the top of the clamping piece and slides back and forth along the guide inclined hole 841. A cylindrical pin hole is provided at the tail of the lower clamping piece 83. A cylindrical pin 832 is provided inside the cylindrical pin hole. Both ends of the cylindrical pin 832 protrude from the lower clamping piece 83. One end of the cylindrical pin 832 is located in the guide strip hole 813 at the bottom of the groove and slides back and forth along the guide strip hole 813. The other end of the cylindrical pin 832 is located in the guide inclined hole 842 and slides back and forth along the guide inclined hole 842.

[0038] The upper clamping plate guide oblique hole 841 and the lower clamping plate guide oblique hole 842 are respectively arranged on the clamping push block 84. The clamping push block 84 is equipped with a clamping power device 86, which is a cylinder (or other similar power device). The clamping power device 86 drives the clamping push block 84 to slide back and forth along the jaw slide groove 81. When the clamping power device 86 drives the clamping push block 84 to slide forward along the jaw slide groove 81, the upper clamping plate guide oblique hole 841 guides the upper clamping plate cylindrical pin 822. The upper clamping plate cylindrical pin 822 drives the upper clamping plate 82. The upper clamping plate guide post 821 slides along the upper clamping plate guide post hole 811, and the upper clamping plate cylindrical pin 822 slides along the guide strip hole 813 at the bottom of the groove, so that the upper clamping plate 82 moves downward and moves closer to the lower clamping plate 83. Similarly, the lower clamping plate guide oblique hole 842 guides the lower clamping plate cylindrical pin 832, which in turn drives the lower clamping plate 83. The lower clamping plate guide post 831 slides along the lower clamping plate guide post hole 812, and the lower clamping plate cylindrical pin 832 slides along the guide strip hole 813 at the bottom of the groove, causing the lower clamping plate 83 to move upward and approach the upper clamping plate 82, thus achieving the clamping action of the upper clamping plate 82 and the lower clamping plate 83. When the clamping power device 86 drives the clamping push block 84 to slide backward along the jaw slide groove 81, the upper clamping plate guide oblique hole 841 guides the upper clamping plate cylindrical pin 822 to reset the upper clamping plate 82 upward, and the lower clamping plate guide oblique hole 842 guides the lower clamping plate cylindrical pin 832 to reset the lower clamping plate 83 downward, thus achieving the release action of the upper clamping plate 82 and the lower clamping plate 83.

[0039] To limit the movement of components within the gripper slide 81 and improve the stability of the gripper operation, a gripper slide cover plate 85 is provided on the gripper slide 81. For better gripping of the chain belt, a chain tooth clearance groove 8222 is provided on the upper clamping plate 82. Alternatively, the gripper can adopt a common gripper structure found in the prior art, such as upper and lower clamping plates connected to a finger cylinder, with the finger cylinder driving the clamping and releasing of the upper and lower clamping plates.

[0040] 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 zipper traction and pushing mechanism, characterized in that: The device includes a guide rail plate with two grippers on the left and right sides. Each gripper is equipped with a gripper forward movement mechanism, which drives the grippers to approach the zipper. The guide rail plate is also equipped with a zipper travel power mechanism, which drives the guide rail plate to move to the right to provide power for the zipper to travel. After the right gripper pulls the end of the zipper to the zipper head, the left gripper pushes the zipper into the zipper head.

2. The zipper traction and pushing mechanism according to claim 1, characterized in that: The zipper travel power mechanism includes a guide rail and a guide rail power device, wherein the guide rail power device is used to drive the guide rail to reciprocate along the guide rail.

3. The zipper traction and pushing mechanism according to claim 2, characterized in that: The guide rail includes a first guide rail and a second guide rail arranged side by side. The power unit of the guide rail includes a ball screw and a servo motor. The ball screw is located between the first guide rail and the second guide rail. Screw positioning blocks are rotatably connected to both ends of the ball screw. A screw nut is connected to the ball screw. The screw nut is located between the two screw positioning blocks and connected to the guide rail. The servo motor drives the ball screw to rotate, and the screw nut drives the guide rail to slide along the guide rail.

4. The zipper traction and pushing mechanism according to claim 1, characterized in that: The gripper forward movement force mechanism includes a gripper forward movement guide rail and a gripper forward movement force device. The gripper forward movement force device is used to drive the gripper to move closer to the zipper along the gripper forward movement guide rail.

5. The zipper traction and pushing mechanism according to claim 1, characterized in that: The gripper includes a gripper groove, an upper clamping piece is disposed within the gripper groove, and a lower clamping piece is fitted onto the upper clamping piece. The upper clamping piece is provided with an upper clamping piece guide post, which is located within an upper clamping piece guide post hole in the groove wall of the gripper groove and slides reciprocally along the upper clamping piece guide post hole. The tail of the upper clamping piece is located between the clamping push block and the gripper groove. The upper clamping piece is provided with an upper clamping piece cylindrical pin, which is located within an upper clamping piece guide inclined hole in the clamping push block and slides reciprocally along the upper clamping piece guide inclined hole. The clamping push block is provided with a clamping power device, which drives the clamping push block to slide reciprocally along the gripper groove. The upper clamping piece guide inclined hole guides the upper clamping piece cylindrical pin, which drives the upper clamping piece guide post to slide along the upper clamping piece guide post hole, causing the upper clamping piece to move closer to / away from the lower clamping piece.

6. The zipper traction and pushing mechanism according to claim 5, characterized in that: The upper clamping piece is provided with an upper clamping piece groove bottom guide post. The upper clamping piece groove bottom guide post is located in the groove bottom guide strip hole of the clamping claw slide groove and slides back and forth along the groove bottom guide strip hole. The groove bottom guide strip hole is set along the movement direction of the upper clamping piece.

7. The zipper traction and pushing mechanism according to claim 5, characterized in that: The lower clamping piece is provided with a lower clamping piece guide post, which is located in the lower clamping piece guide post hole in the groove wall of the jaw slide and slides back and forth along the lower clamping piece guide post hole. The lower clamping piece is provided with a lower clamping piece cylindrical pin, which is located in the lower clamping piece guide inclined hole of the clamping push block and slides back and forth along the lower clamping piece guide inclined hole. The lower clamping piece guide inclined hole and the upper clamping piece guide inclined hole are arranged opposite to each other. The clamping power device drives the clamping push block to slide back and forth along the jaw slide groove. The lower clamping piece guide inclined hole guides the lower clamping piece cylindrical pin, and the lower clamping piece cylindrical pin drives the lower clamping piece guide post to slide back and forth along the lower clamping piece guide post hole, so that the lower clamping piece moves closer to / away from the upper clamping piece.

8. The zipper traction and pushing mechanism according to claim 7, characterized in that: The upper clamping piece is provided with an upper clamping piece groove bottom guide post, which is located in the groove bottom guide strip hole of the clamping claw sliding groove and slides back and forth along the groove bottom guide strip hole. The groove bottom guide strip hole is set along the movement direction of the upper clamping piece. The lower clamping piece is provided with a lower clamping piece groove bottom guide post, which is located in the groove bottom guide strip hole and slides back and forth along the groove bottom guide strip hole.

9. The zipper traction and pushing mechanism according to any one of claims 5-8, characterized in that: The gripper slide groove is provided with a gripper slide groove cover plate.

10. The zipper traction and pushing mechanism according to claim 1, characterized in that: The guide rail plate is equipped with a sensing plate, and multiple sensors are arranged on the same side of the sensing plate, with the multiple sensors arranged sequentially along the travel direction of the guide rail plate.

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