A single-sided chain threading machine with top stop straight code

Abstract

This invention belongs to the field of zipper machines and relates to a single-sided zipper threading machine with a top stop straight code. It includes a zipper guide platform, a zipper traction mechanism, an upper zipper head mold, and an upper stop positioning mechanism mounted on a frame. A block sensing mechanism is provided on the block zipper channel. The upper stop positioning mechanism includes a zipper guide plate and a zipper cylinder that drives the zipper guide plate to move left and right. A positioning seat is provided on the zipper guide plate, and a zipper channel is formed between the zipper guide plate and the positioning seat. The zipper channel includes a chain tooth channel and a fabric channel. A positioning pin and a positioning pin drive mechanism that drive the positioning pin to move up and down are provided on the chain tooth channel. The upper zipper head mold includes an upper zipper head cylinder and a zipper head seat. A zipper head cavity is formed on the zipper head seat. A dividing pin is fixed in front of the zipper head cavity. The vertical distance from the outer side of the dividing pin to the center line of the zipper head is greater than the vertical distance from the outer side of the zipper head to the center line of the zipper head. This device has the advantages of not damaging the chain teeth and automatically threading the zipper with a top stop straight code.

Description

Technical Field

[0001] This invention belongs to the field of zipper machines and relates to a single-sided zipper threading machine with a top stop straight code. Technical Background

[0002] A straight-stop chain refers to a chain with pre-formed blocks and pins at the bottom. There are two types of top stops: one is without injection molding, using the topmost chain tooth as the top stop; the other has an injection-molded top stop, which is a straight block with the same width and thickness as the chain tooth, but may differ in length, and does not have the tooth grooves found on chain teeth. Existing chain threading machines with straight-stop top stops forcibly separate the parallel chain teeth using a dividing needle, then pull the chain through the upper pull head mold to complete the threading. This method of forcibly opening the parallel chain teeth with a dividing needle easily damages the chain teeth. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a single-sided chain threading machine with a top stop straight code. This device has the advantages of not damaging the chain teeth and automatically threading the chain with a top stop straight code.

[0004] The objective of this invention is achieved as follows:

[0005] A single-sided chain threading machine with a top stop straight code includes a chain guide platform, a chain traction mechanism, an upper pull head mold, and a top stop positioning mechanism mounted on a frame. The chain guide platform is provided with a block chain channel and a pin chain channel. A block sensing mechanism is provided on the block chain channel. The top stop positioning mechanism includes a belt guide plate and a belt guide plate cylinder that drives the belt guide plate to move left and right. A positioning seat is provided on the belt guide plate. A belt guide channel is formed between the belt guide plate and the positioning seat. The belt guide channel includes a chain tooth channel and a fabric channel. A positioning pin and a positioning pin drive mechanism that drives the positioning pin to move up and down are provided on the chain tooth channel.

[0006] The upper pull head mold includes an upper pull head cylinder and a pull head base. A pull head cavity is formed on the pull head base. A dividing needle is fixed in front of the pull head cavity. The vertical distance from the outer side of the dividing needle to the center line of the pull head is greater than the vertical distance from the outer side of the pull head to the center line of the pull head.

[0007] The chain position is sensed by a block sensing mechanism, and then the upper stop positioning mechanism is controlled to position the upper stop straight code. The upper stop straight code of the chain is positioned at a preset position on the zipper head. Then, the upper zipper head mold is controlled to rise and transport the zipper head to the preset position. The belt guide plate cylinder drives the belt guide plate to move the upper stop straight code inward, so that the upper stop straight code is aligned with the feed tooth inlet of the zipper head. Then, the chain teeth are sent into the zipper head by the chain traction mechanism to complete the chain threading. However, because there is a triangular chain dividing pin in the zipper head, the upper stop can easily get stuck when passing through the triangular chain dividing pin. Therefore, by using the dividing pin in front of the zipper head cavity, and the vertical distance from the outer side of the dividing pin to the center line of the zipper head is greater than the vertical distance from the outer side of the zipper head to the center line of the zipper head, the chain in front of the upper stop is offset to the side at an angle so that the upper stop avoids the triangular chain dividing pin, preventing the triangular chain dividing pin from getting stuck on the upper stop, thereby improving the yield rate and completing the automatic chain threading of the chain with the upper stop straight code without damaging the chain teeth.

[0008] The present invention is further configured such that: the lower end of the positioning pin is formed with an "L" shaped groove, the upper end surface of the "L" shaped groove is a fabric tape pressing surface, the inner side surface of the "L" shaped groove is a fabric tape pulling surface, and the rear side surface of the "L" shaped groove is a chain tooth resisting surface.

[0009] With the above settings, the flat surface of the belt presses against the top of the belt in front of the upper stop, and the pulling surface of the belt presses against the inner side of the belt, so that the chain can move more stably with the positioning pin, making the positioning more accurate.

[0010] The invention is further configured such that the height of the "L"-shaped groove is less than the height of the chain tooth, and the distance from the tape pulling surface to the inner side of the chain tooth channel is less than the width of the chain tooth.

[0011] The opening formed by the "L"-shaped groove and the chain tooth channel has a width and height that are smaller than the width and height of the chain teeth, thus stably blocking the top stop straight code and achieving more stable positioning of the top stop straight code.

[0012] The present invention is further configured such that: the positioning pin driving mechanism includes a positioning pin cylinder fixed on the positioning seat, the output end of the positioning pin cylinder is rotatably connected to a push rod, the other end of the push rod is rotatably connected to a positioning pin, the positioning seat is formed with a vertical groove for the positioning pin to move up and down, and a horizontal groove for the push rod to rotate, a pin is fixed in the horizontal groove and passes through the push rod, and the push rod rotates around the pin.

[0013] Setting the positioning pin and its rotating mechanism inside the positioning seat makes the structure more stable. The movement of the positioning pin is guided by the vertical groove. Since the chain is flexible, it moves up and down a lot during operation. After the positioning pin moves up, it can retract into the positioning seat, making it less likely to interfere with the chain.

[0014] The present invention is further configured such that: the belt feed plate and the positioning seat are both fixed on the slide plate, the slide plate is slidably mounted on the slide block, the slide block is fixed on the frame, and the belt feed plate cylinder is also fixed on the slide block.

[0015] With the above settings, the belt feeder cylinder extends and retracts to drive the slide plate to slide on the slide block. Both the belt feeder and the positioning seat are set on the slide plate. Therefore, the belt feeder and the positioning seat slide under the drive of the belt feeder cylinder, realizing left and right movement. It can control the positioning pin in the positioning seat to come down, and the belt pulling surface of the positioning pin abuts against the inner side of the belt in front of the upper stop straight code. Then the belt feeder cylinder drives the positioning seat to move outward, and the positioning pin in the positioning seat pulls the chain belt open to allow the pull head to come out.

[0016] The present invention is further configured such that: an adjustment seat is fixed on the slide plate, an adjustment screw is fixed on the adjustment seat, an adjustment block corresponding to the adjustment screw is fixed on the positioning seat, and the adjustment screw passes through the adjustment block and is fastened by a locking nut.

[0017] By adjusting the seat, adjusting screw, and adjusting block, the position of the positioning seat can be adjusted, thereby allowing the position of the positioning pin to be adjusted according to the size of the chain teeth.

[0018] The present invention is further configured such that: the upper stop positioning mechanism further includes a linear rail fixed on the bracket, the linear rail and the chain belt moving in parallel directions, the slide block is slidably mounted on the linear rail, the frame is also provided with a tension spring, the tension spring is connected to the slide block and always provides a backward pulling force to the slide block, and a positioning cylinder is also provided at the rear of the slide block, the extended end of the positioning cylinder extending forward.

[0019] A detection baffle is also fixed on the outer side of the slide block. A sensor switch plate is set on the frame corresponding to the detection baffle. When the sensor switch plate cannot detect the detection baffle, the extension end of the control positioning cylinder extends and abuts against the rear side of the slide block.

[0020] By detecting the baffle and the sensor switch, after the positioning pin descends, it abuts against the front end of the upper stop code. Since the chain is still moving, the upper stop code carries the positioning pin (positioning seat and the entire slide) forward until the sensor switch can no longer detect the baffle. This indicates that the slide has moved into position (the upper stop code has moved to the set position). The extended end of the positioning cylinder then extends and abuts against the rear side of the slide to prevent it from being pulled back by the tension spring. After the chain is threaded, the extended end of the positioning cylinder retracts, and the slide is pulled back to its original position by the tension spring.

[0021] The present invention is further configured such that: a pin sensing mechanism is provided on the pin chain channel, and the pin sensing mechanism and the block sensing mechanism are staggered. When a time difference is detected, the control device stops operating when the detected time difference is too large or too small.

[0022] By misaligning the pin sensing mechanism and the block sensing mechanism, when the time difference between the pin and the block is detected to be greater than or less than the set time value, it proves that the distance between the pin and the block is different from the set distance. This may indicate that the pin branch chain and the block branch chain on the equipment are stuck or misaligned. In order to prevent the equipment from continuing to run and causing damage, the equipment is controlled to stop operating.

[0023] The present invention is further configured such that: the pin sensing mechanism includes a pin triggering lever disposed on the pin chain channel, the pin triggering lever is rotatably disposed on the pin seat, and the pin seat is also provided with a pin lever sensing switch corresponding to the pin triggering lever.

[0024] The present invention is further configured such that: the block sensing mechanism includes a block sensing block, the block sensing block is disposed in the block chain channel, the lower end of the block sensing block and the block chain channel form a block chain groove, the block sensing block is connected to a rotating rod, the rotating rod is rotatably mounted on a bracket, and the bracket is also provided with a block sensing switch corresponding to the rotating rod.

[0025] The significant and beneficial technical effects of this invention compared to existing technologies are as follows: The block sensing mechanism senses the chain position, then controls the upper stop positioning mechanism to position the upper stop straight code. The upper stop straight code is positioned at a preset position on the pull head. Next, the upper pull head mold is raised, transporting the pull head to the preset position. A belt-passing cylinder drives the belt-passing plate to move the upper stop straight code inward, aligning it with the pull head's tooth inlet. Then, the chain traction mechanism delivers the chain teeth into the pull head to complete the chain threading. However, because the pull head contains triangular chain-splitter pins, the upper stop can easily get stuck when passing through them. Therefore, by using the splitting pins in front of the pull head cavity, and ensuring that the vertical distance from the outer side of the splitting pin to the center line of the pull head is greater than the vertical distance from the outer side of the pull head to the center line, the chain in front of the upper stop is shifted to the side at an angle that allows the upper stop to avoid the triangular chain-splitter pins, preventing the triangular chain-splitter pins from getting stuck on the upper stop. This improves the yield rate and allows for automatic chain threading of the chain with the upper stop straight code without damaging the chain teeth. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is a schematic diagram of the structure of the present invention without the chain traction mechanism.

[0029] Figure 3 This is a schematic diagram of the structure of the present invention without the upper pull head mold.

[0030] Figure 4 This is one of the structural schematic diagrams of the upper stop positioning mechanism.

[0031] Figure 5 This is the second schematic diagram of the upper stop positioning mechanism.

[0032] Figure 6 This is a structural diagram of the positioning seat and the belt guide plate.

[0033] Figure 7 This is a diagram of the internal structure of the positioning seat.

[0034] Figure 8 This is a schematic diagram of the positioning pin.

[0035] Figure 9 This is a schematic diagram of the pull head base.

[0036] Figure 10 This is a schematic diagram of the slider's structure.

[0037] Figure 11 for Figure 10 Sectional view at point AA.

[0038] Figure 12 This is a schematic diagram of the chain belt structure.

[0039] 1-Frame; 101-Chain guide platform; 102-Square chain channel; 103-Pin chain channel; 104-Chain traction mechanism;

[0040] 2-Upper slider mold; 201-Upper slider cylinder; 202-Slider base; 203-Slider cavity; 204-Minimum hand pin; 205-Outer side of the minute hand pin;

[0041] 3-Top stop positioning mechanism; 301-Belt guide plate; 302-Belt guide plate cylinder; 303-Positioning seat; 304-Chain tooth channel; 305-Belt channel; 306-Positioning pin; 3061-Chain tooth resisting surface; 307-"L" groove; 308-Belt pressing surface; 309-Belt pulling surface; 310-Positioning pin cylinder; 311-Push rod; 312-Vertical groove; 313-Pin shaft;

[0042] 320-Slide plate; 321-Slide block; 322-Adjusting seat; 323-Adjusting screw; 324-Adjusting block; 325-Locking nut; 326-Linear guide; 327-Tension spring; 328-Positioning cylinder; 330-Detection baffle; 331-Induction switch plate;

[0043] 4-Square sensing mechanism; 401-Square sensing block; 402-Rotating rod; 403-Square sensing switch;

[0044] 5-Pin sensing mechanism; 501-Pin trigger lever; 502-Pin seat; 503-Pin lever sensing switch;

[0045] 8-Slide head; 801-Triangle chain divider pin; 802-Groove; 803-Inlet tooth; 804-Slide head center line; 805-Outer side of slide head;

[0046] 9-Chain belt; 901-Top stop straight code; 903-Square; 904-Fabric belt; 905-Chain tooth; 906-Pin; 907-Transition section. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0048] A single-sided chain threading machine with a top stop straight code includes a chain guide table 101, a chain traction mechanism 104, an upper pull head mold 2, and a top stop positioning mechanism 3, all mounted on a frame 1. The chain guide table 101 is provided with a block chain channel 102 and a pin chain channel 103. A block sensing mechanism 4 is provided on the block chain channel 102. The top stop positioning mechanism 3 includes a belt guide plate 301 and a belt guide plate cylinder 302 that drives the belt guide plate to move left and right. A positioning seat 303 is provided on the belt guide plate 301. A belt guide channel is formed between the belt guide plate 301 and the positioning seat 303. The belt guide channel includes a chain tooth channel 304 and a fabric belt channel 305. A positioning pin 306 and a positioning pin drive mechanism that drives the positioning pin to move up and down are provided on the chain tooth channel 304.

[0049] The upper pull head mold 2 includes an upper pull head cylinder 201 and a pull head base 202. A pull head cavity 203 is formed on the pull head base 202. A dividing needle 204 is fixed in front of the pull head cavity 203. The vertical distance from the outer side 205 of the dividing needle to the center line 804 of the pull head is greater than the vertical distance from the outer side 805 of the pull head to the center line 504 of the pull head.

[0050] The position of the chain is sensed by the block sensing mechanism, and then the upper stop positioning mechanism is controlled to position the upper stop straight code 901. The upper stop straight code 901 of the chain is positioned at the preset position when the pull head 8 comes up. Then, the upper pull head mold 2 is controlled to come up and transport the pull head 8 to the preset position. The belt plate cylinder 302 drives the belt plate 301 to move the upper stop straight code 901 inward so that the upper stop straight code 901 is aligned with the tooth inlet 803 of the pull head. Then, the chain teeth 905 are sent into the pull head 8 by the chain traction mechanism 104 to complete the chain threading. However, because there is a triangular chain dividing pin 801 inside the zipper head 8, the top stop straight code 901 is easily stuck when it passes through the triangular chain dividing pin 801. Therefore, by using the dividing pin 204 in front of the zipper head cavity, and the vertical distance from the outer side 205 of the dividing pin to the center line 804 of the zipper head is greater than the vertical distance from the outer side 805 of the zipper head to the center line 804 of the zipper head, the chain in front of the top stop straight code 901 is shifted to the side at an angle so that the top stop straight code 901 avoids the triangular chain dividing pin 801, preventing the triangular chain dividing pin 801 from getting stuck on the top stop, thereby improving the yield rate. This achieves automatic chain threading of the chain for the top stop straight code without damaging the chain teeth.

[0051] The lower end of the positioning pin 306 is formed with an "L"-shaped groove 307. The upper surface of the "L"-shaped groove 307 is a fabric tape pressing surface 308, the inner side of the "L"-shaped groove is a fabric tape pulling surface 309, and the rear side of the "L"-shaped groove is a chain tooth resisting surface 3061. With the above arrangement, the fabric tape pressing surface 308 abuts against the upper transition section 907 fabric tape in front of the upper stop straight code 901, and the fabric tape pulling surface 309 abuts against the inner side of the transition section 907 fabric tape, so that the chain can move more stably with the positioning pin, making the positioning more accurate.

[0052] The height of the "L"-shaped groove 307 is less than the height of the chain teeth, and the distance from the fabric tape pulling surface 309 to the inner side of the chain tooth channel is less than the width of the chain teeth. The width and height of the opening formed by the "L"-shaped groove and the chain tooth channel are both less than the width and height of the chain teeth, thus stably blocking the upper stop straight code and achieving more stable positioning of the upper stop straight code.

[0053] The positioning pin drive mechanism includes a positioning pin cylinder 310 fixed on a positioning seat 303. A push rod 311 is rotatably connected to the output end of the positioning pin cylinder 310, and a positioning pin 306 is rotatably connected to the other end of the push rod 311. The positioning seat 303 has a vertical groove 312 for the positioning pin 306 to move up and down, and a horizontal groove for the push rod 311 to rotate. A pin 313 is fixed in the horizontal groove, passing through the push rod 311, and the push rod 311 rotates around the pin 313. Placing the positioning pin 306 and its rotation mechanism within the positioning seat 303 makes the structure more stable. The movement of the positioning pin is guided by the vertical groove 312, and since the chain is flexible, it moves up and down significantly during operation. After the positioning pin moves upward, it can retract into the positioning seat, minimizing interference with the chain.

[0054] The belt guide plate 301 and the positioning seat 303 are both fixed on the slide plate 320. The slide plate 320 is slidably mounted on the slide base 321, which is fixed on the frame 1. The belt guide plate cylinder 302 is also fixed on the slide base 321. With the above configuration, the belt guide plate cylinder 302 extends and retracts, causing the slide plate 320 to slide on the slide base 321. Since the belt guide plate 301 and the positioning seat 303 are both mounted on the slide plate 320, the belt guide plate 301 and the positioning seat 303 slide under the action of the belt guide plate cylinder 302, achieving left and right movement. It can be controlled that after the positioning pin 306 in the positioning seat 303 comes down, the belt pulling surface 309 of the positioning pin abuts against the inner side of the belt in front of the upper stop straight code. Then, the belt guide plate cylinder 302 drives the positioning seat 303 to move outward, and the positioning pin 306 in the positioning seat pulls the chain belt open to allow the pull head 8 to come up.

[0055] An adjusting seat 322 is fixed on the slide plate 320, and an adjusting screw 323 is fixed on the adjusting seat 322. An adjusting block 324 corresponding to the adjusting screw 323 is fixed on the positioning seat 303. The adjusting screw 323 passes through the adjusting block 324 and is fastened by a locking nut 325. By setting up the adjusting seat, adjusting screw, and adjusting block, the position of the positioning seat can be adjusted, thereby adjusting the position of the positioning pin according to the size of the chain teeth.

[0056] The upper stop positioning mechanism also includes a linear rail 326 fixed on the bracket. The linear rail 326 is parallel to the moving direction of the chain belt. The slide block 321 is slidably mounted on the linear rail 326. The frame 1 is also provided with a tension spring 327, which is connected to the slide block 321 and always provides a backward pulling force to the slide block 321. A positioning cylinder 328 is also provided at the rear of the slide block 321, with the extended end of the positioning cylinder 328 extending forward. A detection baffle 330 is also fixed on the outer side of the slide block 321. A sensor switch plate 331 is provided on the frame corresponding to the detection baffle. When the sensor switch plate 331 does not detect the detection baffle 330, it controls the extended end of the positioning cylinder 328 to extend and abut against the rear side of the slide block 321. By detecting the settings of the baffle 330 and the induction switch plate 331, after the positioning pin 306 descends, it abuts against the front end of the upper stop straight block 901. Since the chain is still moving, the upper stop straight block carries the positioning pin 306 (positioning seat 303 and the entire slide 321) forward until the induction switch plate 331 can no longer sense the detection baffle 330. This indicates that the slide 321 has moved into place (the upper stop straight block has moved to the set position). The extended end of the positioning cylinder 328 extends and abuts against the rear side of the slide 321 to prevent the slide 321 from being pulled back by the tension spring 327. After the chain is threaded, the extended end of the positioning cylinder 328 retracts, and the slide 321 is pulled back to its original position by the tension spring 327.

[0057] The pin chain conveyor channel 103 is equipped with a pin sensing mechanism 5. The pin sensing mechanism 5 and the block sensing mechanism 4 are misaligned. When a time difference is detected, the device stops operating. Because the pin sensing mechanism 5 and the block sensing mechanism 4 are misaligned, if the detected time difference between the pin and the block is greater than or less than a set time value, it indicates that the distance between the pin and the block is different from the set distance. This may indicate that the pin chain and the block chain are stuck or misaligned. To prevent damage from continued operation, the device is stopped.

[0058] The pin sensing mechanism 5 includes a pin trigger lever 501 disposed on the pin chain channel 103. The pin trigger lever 501 is rotatably disposed on the pin seat 502. The pin seat 502 is also provided with a pin lever sensing switch 503 corresponding to the pin trigger lever 501.

[0059] The block sensing mechanism 4 includes a block sensing block 401, which is disposed in the block chain channel 102. The lower end of the block sensing block 401 forms a block chain groove with the block chain channel 102. The block sensing block 401 is connected to a rotating rod 402, which is rotatably mounted on the bracket 1. The bracket 1 is also provided with a block sensing switch 403 corresponding to the rotating rod 402.

[0060] Working principle:

[0061] It should be emphasized that the structure of the zipper head 8 includes a triangular chain dividing pin 801 set inside the zipper head. The triangular chain dividing pin divides the inside of the zipper head into two toothed grooves 802, and the rear end of the zipper head is the tooth inlet 803. A dividing pin 204 is provided in front of the zipper head cavity 203. The vertical distance from the outer side 205 of the dividing pin to the center line 804 of the zipper head is greater than the vertical distance from the outer side 805 of the zipper head to the center line 804 of the zipper head. Therefore, when the upper zipper head mold sends the zipper head to the set position, the dividing pin 204 shifts the chain in front of the upper stop straight bar 901 to the side at an angle so that the upper stop straight bar 901 avoids the triangular chain dividing pin 801, preventing the triangular chain dividing pin 801 from jamming the upper stop.

[0062] Firstly, the conveyor belt in this application enters the equipment in a split-chain configuration. Specifically, the chain with blocks uses the block conveyor belt channel 102, while the chain with pins uses the pin conveyor belt channel 103. When a block on the block chain reaches below the block sensing mechanism and is detected by the block sensing switch, the belt-passing cylinder 302 moves the belt-passing plate 301 and the positioning seat 303 towards the conveyor belt. Then, the positioning pin 306 is moved downwards, abutting against the front of the upper stop straight block 901. The fabric pulling surface 309 of the positioning pin abuts against the inner side of the fabric of the transition section 907 in front of the upper stop straight block. Because the conveyor belt is still moving, the upper stop straight block carries the positioning pin 306 (positioning seat 303 and the entire slide block 321) forward until the sensing switch is activated. When the plate 331 does not sense the detection baffle 330, it proves that the slide 321 has moved into place (the upper stop bar has moved to the set position). The extended end of the positioning cylinder 328 extends and abuts against the rear side of the slide 321 to prevent the slide 321 from being pulled back by the tension spring 327. Then, the belt-passing plate cylinder 302 drives the positioning seat 303 to move outward. The positioning pin 306 in the positioning seat pulls the chain belt open to allow the pull head 8 to come up. Then, the upper pull head mold 2 is controlled to come up and transport the pull head 8 to the preset position. The belt-passing plate cylinder 302 drives the belt-passing plate 301 to move the upper stop bar 901 inward so that the upper stop bar 901 is aligned with the feed tooth opening 803 of the pull head. Then, the chain teeth 905 are sent into the pull head 8 through the chain traction mechanism 104 to complete the chain threading.

[0063] This invention has the characteristics of automatically threading the chain without damaging the chain teeth and with the upper stop straight code.

[0064] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A single-sided chain threading machine with a top stop straight code, comprising a chain guide platform, a chain traction mechanism, an upper pull head mold, and a top stop positioning mechanism mounted on a frame, wherein the chain guide platform is respectively provided with a block chain channel and a pin chain channel, and a block sensing mechanism is provided on the block chain channel, characterized in that, The upper stop positioning mechanism comprises an overpass plate and an overpass plate cylinder moving the overpass plate left and right, the overpass plate is provided with a positioning seat, an overpass channel is formed between the overpass plate and the positioning seat, the overpass channel comprises a chain tooth channel and a cloth tape channel, the chain tooth channel is provided with a positioning needle and a positioning needle driving mechanism driving the positioning needle to move up and down; The upper pull head mold comprises an upper pull head cylinder and a pull head seat, the pull head seat is formed with a pull head cavity, a minute hand is fixed in front of the pull head cavity, and the vertical distance from the outside of the minute hand to the center line of the pull head is greater than the vertical distance from the outside of the pull head to the center line of the pull head; The lower end of the positioning needle is formed with an "L" type groove, the upper end surface of the "L" type groove is a cloth tape flattening surface, the side inner surface of the "L" type groove is a cloth tape pulling surface, and the rear surface of the "L" type groove is a chain tooth resisting surface; The height of the "L" type groove is less than the height of the chain tooth, and the distance from the cloth tape pulling surface to the inner surface of the chain tooth channel is less than the width of the chain tooth; The positioning needle driving mechanism comprises a positioning needle cylinder fixed on the positioning seat, the output end of the positioning needle cylinder is rotatably connected with a jacking rod, the other end of the jacking rod is rotatably connected with the positioning needle, a vertical groove is formed in the positioning seat for the positioning needle to move up and down, and a horizontal groove is formed in the positioning seat for the jacking rod to rotate, a pin shaft is fixed in the horizontal groove and penetrates the jacking rod, and the jacking rod rotates around the pin shaft as the axis.

2. A single-lap chain stitch machine with an upper stop straight code according to claim 1, characterized in that: The overpass plate and the positioning seat are both fixed on a sliding plate, the sliding plate is slidably arranged on a sliding seat, and the sliding seat is fixed on a rack, the overpass plate cylinder is also fixed on the sliding seat.

3. A top drive single strand chain strapping machine according to claim 2, wherein: An adjusting seat is fixed on the sliding plate, an adjusting screw is fixed on the adjusting seat, an adjusting block corresponding to the adjusting screw is fixed on the positioning seat, the adjusting screw penetrates the adjusting block and is fastened by a locking nut.

4. A top drive straight line single strand chain machine according to claim 3, wherein: The upper stop positioning mechanism further comprises a wire rail fixed on a support, the wire rail is parallel to the moving direction of the chain belt, the sliding seat is slidably arranged on the wire rail, a tension spring is further arranged on the rack, the tension spring is connected to the sliding seat and always gives the sliding seat a backward pulling force, a positioning cylinder is further arranged at the rear of the sliding seat, and the extending end of the positioning cylinder extends forward; A detection baffle is further fixed on the outer surface of the sliding seat, a sensing switch plate corresponding to the detection baffle is arranged on the rack, and when the sensing switch plate cannot sense the detection baffle, the extending end of the positioning cylinder is controlled to extend and abut against the rear surface of the sliding seat.

5. A top drive straight away single-sided strapping machine according to claim 1, characterized in that: A bolt sensing mechanism is arranged on the bolt chain belt channel, the bolt sensing mechanism and the block sensing mechanism are arranged in a staggered manner, and a time difference exists when a signal is detected, and when the time difference is too large or too small, the equipment is controlled to stop running.

6. A top drive straight line single-sided strapping machine according to claim 5, characterized in that: The bolt sensing mechanism comprises a bolt trigger swing rod arranged on the bolt chain belt channel, the bolt trigger swing rod is rotatably arranged on a bolt seat, and a bolt swing rod sensing switch corresponding to the bolt trigger swing rod is further arranged on the bolt seat.

7. A top pin straightening and coding single-side strapping machine according to claim 1 or 5, characterized in that: The block sensing mechanism comprises a block sensing block, the block sensing block is arranged in the block chain belt channel, the lower end of the block sensing block forms a block chain belt groove with the block chain belt channel, a rotating rod is connected to the block sensing block, the rotating rod is rotatably arranged on a support, and a block sensing switch corresponding to the rotating rod is further arranged on the support.

Images