X-shaped zipper notch positioning mechanism

Abstract

The utility model discloses an X-shaped zipper notch positioning mechanism which comprises a stop lever, the stop lever is connected with a stop lever power device, and the stop lever power device drives the stop lever to be close to / away from a zipper. After the stop lever power device drives the stop lever to be close to the zipper cloth belt of the blank section of the zipper, the protruding part of the advancing zipper cloth belt can make contact with the stop lever. The retainer of the zipper is scraped by the stop lever, so that the notch of the double-opening zipper is positioned, the positioning effect is good, stability and reliability are realized, and the applicability is wide. Meanwhile, the two zipper cloth belts do not need to be drawn close to the middle, and zipper deformation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of zipper cutting equipment, in particular to an X-shaped zipper incision positioning mechanism. Background Art

[0002] Zippers are connectors that combine or separate items by means of continuously arranged chain teeth. They are now widely used in clothing, bags, tents, etc. Figure 1 As shown, the shape of the X-type zipper is similar to the English letter "X", and the two sliders are arranged back to back. When one slider slides toward the end and away from the other slider, the chain teeth between the two sliders are in a closed state.

[0003] During production, the X-shaped zipper needs to be cut from the blank section of the long chain. For example, the zipper long chain cutting device disclosed in publication number CN102248548A, the double-opening zipper long chain includes two cloth tapes, and multiple sections of chain teeth are provided on the cloth tapes. Several blank sections are formed between each section of chain teeth. A pair of upper stops are provided on one side of the blank section, and a pair of lower stops are provided on the other end of the blank section. Each section of chain teeth is equipped with an upper pull head facing the upper stop and a lower pull head facing the lower stop. Therefore, it is necessary to cut along the predetermined position of the blank section to form an independent zipper, and cutting along the predetermined position requires first locating the chain teeth (chain teeth at the end of each section of chain teeth) or the stopper (upper stop or lower stop at the end of the chain teeth) at the blank section, so as to accurately locate the predetermined position of the blank section and accurately cut along the predetermined position.

[0004] Since both ends of the X-shape are open and can be opened with the movement of the slider, and the position of the slider on the zipper is not specific and fixed, it is difficult to effectively locate the chain teeth or stops at the blank section using traditional crochet positioning, which makes it difficult for the zipper cutting device to automatically cut along the predetermined position of the blank section.

[0005] For example, a double-opening zipper cutting device disclosed in CN105962555A has a positioning device including a chain-pushing mechanism, which moves two chain cloth tapes closer to the middle under the drive of a chain-pushing power device, and a chain cloth tape hook needle is arranged downstream of the chain-pushing mechanism, and the chain cloth tape hook needle moves up and down under the drive of the hook needle power device, and when the chain cloth tape hook needle moves upward under the drive of the hook needle power device, the chain cloth tape hook needle inserts into the blank section of the long chain and hooks the upper stop of a pair of open zippers on the upper and lower sides of the long chain. Although the hook needle is used to realize the upper stop of the end of the positioning chain tooth, it is necessary to first drive the two chain cloth tapes closer to the middle so that the upper stop is close together, and the hook needle can hook the upper stop to realize positioning; the chain-pushing mechanism drives the two chain cloth tapes closer to the middle, which will cause the chain tape to deform and affect the zipper cutting effect. The chain push mechanism also needs to be used in conjunction with a belt pressing plate to press the two chain belts together to avoid a gap between the upper stops (the upper stops are close together, and the hook needle is easy to hook the upper stops, otherwise, the hook needle is easy to enter the gap), which affects the stability of the chain belt hook needle positioning. The positioning device has a complex structure, is not easy to debug, and has low equipment applicability. Utility Model Content

[0006] The utility model aims to provide an X-shaped zipper notch positioning mechanism, which can effectively position the chain teeth or stoppers (upper stop or lower stop) at the blank section of the zipper, has wide applicability, is stable and reliable, and does not need to bring the two chain cloth tapes closer to the middle to avoid zipper deformation.

[0007] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0008] The X-shaped zipper cut positioning mechanism includes a stopper rod, which is connected to a stopper rod power device (cylinder). The stopper rod power device drives the stopper rod to approach / move away from the zipper. After the stopper rod power device drives the stopper rod to approach the chain tape of the blank section of the zipper, the bottom of the stopper rod is lower than the top of the chain tape protrusion, and the moving chain tape protrusion will contact the stopper rod.

[0009] When in use, the zipper conveyor pulls the zipper forward, and after the chain tooth detection device detects the blank section of the zipper, the barrier rod power device drives the barrier rod to approach the chain tape of the blank section of the zipper, so that the bottom of the barrier rod is lower than the top of the convex part of the chain tape; after the barrier rod approaches the chain tape of the blank section of the zipper (the bottom of the barrier rod is lower than the top of the convex part of the chain tape), the zipper conveyor continues to pull the zipper forward, and the chain tape of the blank section of the zipper will pass through the barrier rod; when the convex part of the chain tape contacts the barrier rod, the zipper stops moving, and then the position of the zipper incision is located according to the position of the moving barrier rod, so as to achieve incision positioning. Since the convex part of the chain tape contacts the barrier rod, the position of the convex part of the chain tape can be determined according to the position of the barrier rod, and then the position of the zipper incision is located according to the position of the convex part of the chain tape.

[0010] The convex part of the chain tape is a protruding part of a stopper or a chain tooth protruding from the surface of the chain tape. During the movement of the blank section of the zipper, as long as the protruding part can contact the stopper, the position of the incision is determined according to the position of the protruding part. At the blank section of the zipper, if there is a stopper at the end of the chain tooth, the stopper can be used as the above-mentioned protruding part. If there is no stopper at the end of the chain tooth, the last chain tooth can be used as the above-mentioned protruding part.

[0011] In order to prevent the block rod from damaging the convex part of the chain belt when it contacts with the convex part of the chain belt, the block rod is provided with a slide rail, and the convex part of the chain belt drives the block rod to slide along the slide rail. When the block rod contacts with the convex part of the chain belt, the advancing convex part of the chain belt drives the block rod to slide along the slide rail for a distance, and then stops conveying the zipper to prevent damage to the convex part of the chain belt.

[0012] The slide rail is provided with a sliding detection device, which detects the sliding position of the blocking rod to locate the position of the blocking rod on the slide rail, and then locates the zipper cut position according to the blocking rod position.

[0013] Preferably, the sliding detection device is a proximity switch, the slide rail is provided with a front limit plate, and the front limit plate is provided with a sensing bolt used in conjunction with the proximity switch.

[0014] The slide rail is provided with a reset device, and after the stop rod slides along the slide rail, the reset device is used to reset the stop rod.

[0015] During the movement of the blank section of the zipper, in order to limit the chain tape and prevent the bottom of the baffle rod from being higher than the top of the convex part of the chain tape, so that the baffle rod cannot contact the convex part of the chain tape, the baffle rod is provided with a pad rod. After the baffle rod is close to the chain tape of the blank section of the zipper, the distance between the baffle rod and the pad rod is less than the thickness of the convex part of the chain tape, and the chain tape of the blank section of the zipper moves between the baffle rod and the pad rod. When in use, the chain tape of the blank section of the zipper is located between the pad rod and the baffle rod, the baffle rod is close to the pad rod, and the distance between the baffle rod and the pad rod is less than the thickness of the convex part of the chain tape, but greater than the thickness of the chain tape. The zipper conveying device pulls the chain tape of the blank section of the zipper through between the baffle rod and the pad rod, so that the baffle rod can contact the convex part of the chain tape, thereby improving the positioning effect of the baffle rod.

[0016] The stopper bar is provided with a stopper bar slide groove, and the stopper bar power device drives the stopper bar to slide in the stopper bar slide groove so as to make the stopper bar approach to / move away from the zipper.

[0017] The blocking rod is arranged at the end of the chain plate, and the chain plate is provided with a chain tooth detection device, and the chain tooth detection device is used to detect the blank section of the zipper.

[0018] The chain tooth detection device includes a tooth pressing plate, and the tooth pressing plate is provided with a tooth pressing plate rotating shaft and a rotation detection device. The tooth pressing plate rotates with the tooth pressing plate rotating shaft as the axis, and the rotation detection device is used to detect the rotation of the tooth pressing plate. When in use, the tooth pressing plate is pressed on the chain teeth of the moving zipper. When the blank section of the zipper moves to the tooth pressing plate, since there are no chain teeth at the blank section, the tooth pressing plate will rotate and fall due to the lack of support of the chain teeth. The rotation of the tooth pressing plate is detected by the rotation detection device to detect the blank section of the zipper. After the tooth pressing plate is separated from the blank section of the zipper, the stopper and chain teeth of the zipper will push the tooth pressing plate to rotate upward, so that the blank section of the zipper can be re-detected.

[0019] In order to guide the chain teeth and prevent the chain teeth from being separated from the tooth pressing plate and improve the detection effect of the tooth pressing plate, chain pressing blocks are respectively arranged on both sides of the tooth pressing plate, and the chain pressing blocks are each provided with a chain tooth running groove.

[0020] In order to avoid the slider on the zipper, the chain pressing block is provided with a chain pressing block rotating shaft, and the chain pressing block rotates with the chain pressing block rotating shaft as the axis. When in use, the chain teeth run in the chain teeth running groove of the chain pressing block, and when the slider of the zipper moves to the chain pressing block, the slider will push the chain pressing block to rotate upward, so that the slider can pass through the chain pressing block; when the slider of the zipper passes through the chain pressing block, the chain pressing block will rotate downward without the support of the slider, so that the tooth pressing plate can be pressed on the chain teeth again.

[0021] The utility model realizes the positioning of the double-opening zipper cutout position by scraping the chain cloth belt convex part of the zipper through the blocking rod, which not only has a good positioning effect, but also is stable and reliable and has wide applicability. At the same time, there is no need to make the two chain cloth belts close to the middle to avoid zipper deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 Schematic diagram of the X-type zipper structure.

[0024] Figure 2 It is a schematic diagram of the structure of the utility model.

[0025] Figure 3 This is a schematic structural diagram of the utility model from another viewing angle.

[0026] Figure 4 It is a schematic diagram of the chain tooth running groove structure of the utility model. DETAILED DESCRIPTION

[0027] like Figure 1 As shown, there is no stopper at the end of the X-type zipper element, so the endmost element acts as a chain tape protrusion that contacts the stopper bar.

[0028] like Figure 2-4 As shown, the X-type zipper incision positioning mechanism includes a chain plate 8, a baffle rod 1 is provided at the end of the chain plate 8, and the baffle rod 1 is matched with a pad rod 2, and the zipper passes between the baffle rod 1 and the pad rod 2; the baffle rod 1 is connected to a baffle rod power device 3, and the baffle rod power device 3 is a cylinder, and the cylinder is installed on a cylinder seat 31, and the cylinder seat 31 is provided with a baffle rod slide groove 311, and the cylinder drives the baffle rod 1 to slide back and forth in the baffle rod slide groove 311, so that the baffle rod 1 is close to / away from the pad rod 2, so as to achieve the baffle rod 1 close to / away from the zipper.

[0029] The cylinder seat 31 is arranged on the displacement slider 4, the pad rod 2 is fixedly connected to the displacement slider 4, and the displacement slider 4 is provided with a slide rail. The displacement slider 4 moves back and forth along the slide rail to make the blocking rod 1 move away from / close to the chain plate 8; the slide rail is provided with a rear limit plate 51 and a front limit plate 52, and the displacement slider 4 slides back and forth between the front limit plate 52 and the rear limit plate 41 along the slide rail. The displacement slider 4 is provided with a sliding detection device 41, and the sliding detection device 41 is a proximity switch. The front limit plate 52 is provided with an induction bolt 42 used in conjunction with the proximity switch.

[0030] When in use, the zipper conveying device pulls the zipper forward (how the zipper conveying device pulls the zipper is prior art and will not be described in detail in this article). After the chain tooth detection device detects the blank section of the zipper, the baffle rod power device 4 drives the baffle rod 1 to be close to the pad rod 2, and the chain tape of the blank section of the zipper is located between the pad rod 2 and the baffle rod 1, and the bottom of the baffle rod 1 is lower than the top of the convex part of the chain tape. At the same time, the spacing between the pad rod 2 and the baffle rod 1 is greater than the thickness of the chain tape, but less than the thickness of the convex part of the chain tape; the zipper conveying device continues to pull the zipper forward, and the chain tape of the blank section of the zipper will pass between the baffle rod 1 and the pad rod 2; when the convex part of the chain tape contacts the baffle rod 1, the zipper that continues to move will drive the displacement slider 4 to slide along the slide rail toward the rear limit plate 52 side, and the sliding detection device 41 follows the displacement slider 4 to move; after the sliding detection device 41 detects the sensing bolt 42, the zipper conveying device stops pulling and conveying the zipper.

[0031] Since the convex part of the chain belt will contact the stopper 1, it will drive the displacement slider 4 to slide and displace along the slide rail. Therefore, the position of the convex part of the chain belt can be located according to the position of the stopper 1, and the position of the displacement slider 4 can be detected by the sliding detection device 41, so as to confirm the position of the stopper 1, and then confirm the position of the convex part of the chain belt, and then confirm the position of the zipper cut according to the convex part of the chain belt. Therefore, the position of the displacement slider 4 can be detected by the sliding detection device 41 to confirm the position of the zipper cut, so as to realize the positioning and cutting of the double-opening zipper.

[0032] After the double-opening zipper is positioned and cut off, the cylinder drives the stopper rod 1 to move away from the zipper (pad rod 2) and reset, and the rear limit plate 51 of the displacement slider 4 slides sideways and resets, thereby entering the next working cycle.

[0033] In order to realize the automatic resetting of the displacement slider 4 (blocking rod 1) and facilitate the operation of the next working cycle, a resetting device 6 is arranged between the rear limit plate 51 and the displacement slider 4. The resetting device 6 is a spring. After the block rod 1 breaks free from the limitation of the protruding part of the chain belt, the spring causes the displacement slider 4 to slide toward the rear limit plate 51 and reset.

[0034] The chain plate 8 is provided with a tooth detection device, and the tooth detection device is used to detect the blank section of the zipper. The tooth detection device includes a tooth pressing plate 7, which is connected to one end of the connecting rod, and a rotation detection device 72 is provided at the other end of the connecting rod. The rotation detection device 7 is a proximity switch. Between the rotation detection device 72 and the tooth pressing plate 7, the connecting rod is provided with a tooth pressing plate shaft 71, and the connecting rod rotates with the tooth pressing shaft 71 as the axis. The rotation detection device 72 is used to detect the rotation of the connecting rod. When in use, the tooth pressing plate 7 is pressed on the tooth of the moving zipper. When the blank section of the zipper moves to the tooth pressing plate 7, since there is no tooth at the blank section, the tooth pressing plate 7 will fall due to the lack of support of the tooth. The falling tooth pressing plate 7 drives the connecting rod to rotate with the tooth pressing shaft 71 as the axis, and the other end of the connecting rod rotates toward the rotation detection device 72. The rotation detection device 72 detects the rotation of the connecting rod, and realizes the detection of the falling of the tooth pressing plate 7, thereby realizing the detection of the blank section of the zipper. When the chain teeth (or slider) support the tooth pressing plate 7, the tooth pressing plate 7 will move upward, so that the other end of the connecting rod is away from the rotation detection device 72, thereby entering the next working cycle and re-detecting the blank section of the zipper.

[0035] In order to guide the chain teeth and prevent the chain teeth from detaching from the tooth pressing plate and improve the detection effect of the tooth pressing plate, a left chain pressing block 91 is arranged on the left side of the tooth pressing plate 7, and a right chain pressing block 92 is arranged on the side of the tooth pressing plate 7. The tooth pressing plate 7 is located between the left chain pressing block 91 and the right chain pressing block 92. The left chain pressing block 91 and the right chain pressing block 92 are symmetrically arranged. The left chain pressing block 91, the right chain pressing block 92 and the chain plate 8 are all provided with chain tooth running grooves 81, and the chain teeth on the left and right sides of the zipper run in the chain tooth running grooves 81.

[0036] In order to avoid the slider on the zipper, the left chain pressing block 91 and the right chain pressing block 92 are connected to the chain pressing block rotating shaft 9, and the left chain pressing block 91 and the right chain pressing block 92 rotate around the chain pressing block rotating shaft 9. The chain teeth travel in the chain teeth running groove. When the slider of the zipper travels to the left chain pressing block 91 or the right chain pressing block 92, the slider will push the left chain pressing block 91 or the right chain pressing block 92 to rotate upward, so that the slider can pass through the left chain pressing block 91 or the right chain pressing block 92; when the slider of the zipper passes through the left chain pressing block 91 or the right chain pressing block 92, the left chain pressing block 91 or the right chain pressing block 92 lacks the support of the slider and will rotate downward, so that the tooth pressing plate 7 can be pressed on the chain teeth again.

[0037] The above embodiments do not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. X-type zipper cut positioning mechanism, characterized by: The barrier rod comprises a barrier rod connected to a barrier rod power device, which drives the barrier rod to approach / move away from the zipper; after the barrier rod power device drives the barrier rod to approach the chain cloth tape of the blank section of the zipper, the convex part of the moving chain cloth tape will contact the barrier rod.

2. The X-shaped zipper notch positioning mechanism according to claim 1, characterized in that: The baffle rod is provided with a slide rail, and the chain belt convex portion drives the baffle rod to slide along the slide rail.

3. The X-shaped zipper notch positioning mechanism according to claim 2, characterized in that: The slide rail is provided with a slide detection device.

4. The X-shaped zipper notch positioning mechanism according to claim 2, characterized in that: The slide rail is provided with a reset device, and after the stop rod slides along the slide rail, the reset device is used to reset the stop rod.

5. The X-shaped zipper notch positioning mechanism according to claim 1, characterized in that: The baffle rod is matched with a cushion rod. When the baffle rod is close to the chain tape of the blank section of the zipper, the distance between the baffle rod and the cushion rod is smaller than the thickness of the convex part of the chain tape, and the chain tape of the blank section of the zipper travels between the baffle rod and the cushion rod.

6. The X-shaped zipper notch positioning mechanism according to claim 1, characterized in that: The baffle rod is provided with a baffle rod sliding groove, and the baffle rod power device drives the baffle rod to slide in the baffle rod sliding groove.

7. The X-shaped zipper notch positioning mechanism according to claim 1, characterized in that: The blocking rod is arranged at the end of the chain plate, and the chain plate is provided with a chain tooth detection device, and the chain tooth detection device is used to detect the blank section of the zipper.

8. The X-shaped zipper notch positioning mechanism according to claim 7, characterized in that: The chain tooth detection device comprises a tooth pressing plate, the tooth pressing plate is provided with a tooth pressing plate rotating shaft and a rotation detection device, the tooth pressing plate rotates around the tooth pressing plate rotating shaft as the axis, and the rotation detection device detects the rotation of the tooth pressing plate.

9. The X-shaped zipper notch positioning mechanism according to claim 8, characterized in that: Chain pressing blocks are respectively arranged on both sides of the tooth pressing plate, and the chain pressing blocks are each provided with a chain tooth running groove.

10. The X-shaped zipper notch positioning mechanism according to claim 9, characterized in that: The chain pressing block is provided with a chain pressing block rotating shaft, and the chain pressing block rotates with the chain pressing block rotating shaft as the axis.

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