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

Abstract

The present invention belongs to the field of zipper machines, and relates to a single-sided chain threading machine with an upper stop straight code, comprising a chain belt guiding platform, a chain belt traction mechanism, an upper pull head mold and an upper stop positioning mechanism arranged on a frame, a square sensing mechanism is arranged on the square chain belt channel, the upper stop positioning mechanism comprises a belt-passing plate and a belt-passing plate cylinder for driving the belt-passing plate to move left and right, a positioning seat is arranged on the belt-passing plate, a belt-passing channel is formed between the belt-passing plate and the positioning seat, the belt-passing channel comprises a chain tooth channel and a cloth belt channel, a positioning pin and a positioning pin driving mechanism for driving the positioning pin to move up and down are arranged on the chain tooth channel; the upper pull head mold comprises an upper pull head cylinder and a pull head seat, a pull head cavity is formed on the pull head seat, a minute pin is fixed in front of the pull head cavity, the vertical distance from the outer side of the minute 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 of the pull head, the device has the advantages of not causing damage to the chain teeth and being able to complete automatic chain threading of the chain belt of the upper stop straight code.

Description

Technical Field

[0001] The invention belongs to the field of zipper machines and relates to a single-side chain threading machine with an upper stop straight code. Technical Background

[0002] The top stop straight code chain belt refers to the chain belt with the bottom stop already formed with a square and a latch. There are two forms of the top stop. One is the top stop is not injection molded, and the top sprocket is directly used as the top stop. The other is the top stop is injection molded. The top stop is a straight code with the same width and thickness as the sprocket but may be different in length, and there is no sprocket groove like the sprocket. The existing top stop straight code chain threading machine uses the minute hand to force a hole in the parallel state of the sprocket, and then completes the chain threading after passing through the upper pull head mold. This chain threading method is easy to damage the sprocket because the parallel sprocket is forcibly opened by the minute hand. Summary of the invention

[0003] In view of the above problems, the present invention provides a single-side chain threading machine with an upper stop straight code, which has the advantages of not causing damage to the chain teeth and being able to automatically thread the chain belt with the upper stop straight code.

[0004] The object of the present invention is achieved in that:

[0005] A single-side chain threading machine for upper stop straight code, comprising a chain belt guide platform, a chain belt traction mechanism, an upper pull head mold and an upper stop positioning mechanism arranged on a frame, the chain belt guide platform is respectively provided with a square chain belt channel and a latch chain belt channel, a square sensing mechanism is arranged on the square chain belt channel, the upper stop positioning mechanism comprises a belt-passing plate and a belt-passing plate cylinder for driving the belt-passing plate to move left and right, a positioning seat is arranged on the belt-passing plate, a belt-passing channel is formed between the belt-passing plate and the positioning seat, the belt-passing channel comprises a sprocket channel and a cloth belt channel, a positioning pin and a positioning pin driving mechanism for driving the positioning pin to move up and down are arranged on the sprocket channel;

[0006] The upper slider mold includes an upper slider cylinder and a slider seat, a slider cavity is formed on the slider seat, a minute hand is fixed in front of the slider cavity, and the vertical distance from the outer side of the minute hand to the center line of the slider is greater than the vertical distance from the outer side of the slider to the center line of the slider.

[0007] The block sensing mechanism senses the position of the chain belt, and then controls the upper stop positioning mechanism to locate the position of the upper stop straight code, and positions the upper stop straight code of the chain belt to the preset position when the slider comes up, and then controls the upper slider mold to come up, and transports the slider to the preset position. The belt-passing plate cylinder drives the belt-passing plate to move the upper stop straight code inward, so that the upper stop straight code is aligned with the inlet tooth of the slider, and then the chain teeth are sent to the slider through the chain belt traction mechanism to complete the chain threading. However, since there is a triangular chain needle in the slider, it is easy for the upper stop to get stuck when passing through the triangular chain needle. Therefore, the minute needle in front of the slider cavity is passed, and the vertical distance from the outer side of the minute needle to the center line of the slider is greater than the vertical distance from the outer side of the slider to the center line of the slider. Therefore, the chain belt in front of the upper stop is offset to the side to an angle that allows the upper stop to avoid the triangular chain needle, so as to prevent the triangular chain needle from getting stuck in the upper stop, thereby improving the yield rate, and without causing damage to the chain teeth, the chain belt of the upper stop straight code can complete automatic chain threading.

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

[0009] Through the above arrangement, the tape pressing surface is against the top of the tape in front of the upper stop, and the tape pulling surface is against the inner side of the tape, so that the chain belt can move more stably following the positioning pin, and the positioning is more accurate.

[0010] The present invention is further configured as follows: the height of the "L"-shaped groove is smaller than the height of the sprocket, and the distance from the pulling surface of the cloth tape to the inner side surface of the sprocket channel is smaller than the width of the sprocket.

[0011] The width and height of the opening formed by the "L"-shaped groove and the chain tooth channel are smaller than the width and height of the chain teeth, so that the upper stop straight code can be stably blocked to achieve more stable positioning of the upper stop straight code.

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

[0013] Arranging the positioning pin and its rotating mechanism in the positioning seat can make the structure more stable. The movement of the positioning pin is guided by the vertical groove. Since the chain belt is soft after all, it moves up and down a lot during operation. After moving up, the positioning pin can be retracted into the positioning seat and is not easy to interfere with the chain belt.

[0014] The present invention is further configured as follows: the belt-passing plate and the positioning seat are both fixed on a slide plate, the slide plate is slidably arranged on a slide seat, the slide seat is fixed on a frame, and the belt-passing plate cylinder is also fixed on the slide seat.

[0015] Through the above arrangement, the belt-passing plate cylinder is extended and retracted to drive the slide plate to slide on the slide seat. The belt-passing plate and the positioning seat are both arranged on the slide plate. Therefore, the belt-passing plate and the positioning seat slide driven by the belt-passing plate cylinder to achieve left and right movement. After the positioning pin in the positioning seat is controlled to come down, the cloth belt pulling surface of the positioning pin is against the inner side of the cloth belt in front of the upper stop straight code, and then the belt-passing plate cylinder drives the positioning seat to move outward, and the positioning pin in the positioning seat pulls the chain belt open a hole to allow the pull head to come up.

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

[0017] The position of the positioning seat can be adjusted by setting the adjusting seat, the adjusting screw and the adjusting block, so that the position of the positioning pin can be adjusted according to the size of the chain tooth.

[0018] The present invention is further configured as follows: the upper stop positioning mechanism also includes a linear rail fixed on the bracket, the linear rail and the moving direction of the chain belt are parallel, the slide seat is slidably arranged on the linear rail, the frame is also provided with a tension spring, the tension spring is connected to the slide seat and always gives the slide seat a pulling force to pull backward, and a positioning cylinder is also provided at the rear of the slide seat, and the extending end of the positioning cylinder extends forward;

[0019] A detection baffle is also fixed on the outer side of the slide, and an induction switch plate is arranged on the frame corresponding to the detection baffle. When the induction switch plate cannot sense the detection baffle, the extended end of the positioning cylinder is controlled to extend and abut against the rear side of the slide.

[0020] Through the setting of the detection baffle and the induction switch plate, after the positioning pin comes down, the positioning pin presses against the front end of the upper stop straightening code. Since the chain belt is still moving, the upper stop straightening code moves forward with the positioning pin (the positioning seat and the entire slide seat) until the induction switch plate can no longer sense the detection baffle, proving that the slide plate has moved into place (the upper stop straightening code has moved to the set position), and the extended end of the positioning cylinder extends out to press against the rear side of the slide seat to prevent the slide seat from being pulled back by the tension spring. When the chain is threaded, the extended end of the positioning cylinder retracts, and the slide seat is pulled back to its original position by the tension spring.

[0021] The present invention is further configured as follows: a latch sensing mechanism is provided on the latch chain channel, the latch sensing mechanism and the block sensing mechanism are staggered, and a time difference exists in the detected signal. When the time difference is detected to be too large or too small, the control device stops running.

[0022] Through the staggered setting of the latch sensing mechanism and the block sensing mechanism, when it is detected that the time difference between the latch and the block is greater than or less than the set time value, it proves that the spacing between the latch and the block is different from the set spacing. The latch chain and the block chain on the equipment may be stuck or installed incorrectly. In order to prevent damage to the equipment if it continues to run, the control device is stopped.

[0023] The present invention is further configured as follows: the latch sensing mechanism includes a latch triggering swing rod arranged on the latch chain channel, the latch triggering swing rod is rotatably arranged on the latch seat, and the latch seat is also provided with a latch swing rod sensing switch corresponding to the latch triggering swing rod.

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

[0025] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: the block sensing mechanism senses the position of the chain belt, and then controls the upper stop positioning mechanism to locate the position of the upper stop straight code, and locates the upper stop straight code of the chain belt to the preset position of the pull head, and then controls the upper pull head mold to come up, and transports the pull head to the preset position, and the belt-passing plate cylinder drives the belt-passing plate to move the upper stop straight code inward, so that the upper stop straight code is aligned with the tooth inlet of the pull head, and then the chain teeth are sent to the pull head through the chain belt traction mechanism to complete the chain threading. However, since there is a triangular chain needle in the pull head, it is easy for the upper stop to get stuck when passing through the triangular chain needle, so it passes through the minute needle in front of the pull head cavity, and the vertical distance from the outer side of the minute 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, so the chain belt in front of the upper stop is offset to the side to an angle that allows the upper stop to avoid the triangular chain needle, so as to prevent the triangular chain needle from getting stuck on the upper stop, thereby improving the yield rate, and without causing damage to the chain teeth, the chain belt of the upper stop straight code can be automatically threaded. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of the present invention.

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

[0029] Figure 3 The figure is a schematic diagram of the structure of the present invention without the upper slider mold.

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

[0031] Figure 5 This is the second structural diagram of the top stop positioning mechanism.

[0032] Figure 6 It is a schematic diagram of the structure of the positioning seat and the belt-passing plate.

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

[0034] Figure 8 Schematic diagram of the structure of the positioning needle.

[0035] Fig. 9 It is a structural schematic diagram of the slider seat.

[0036] Fig.10 It is a schematic diagram of the structure of the pull head.

[0037] Fig.11 for Fig.10 Sectional view at AA.

[0038] Fig.12 Schematic diagram of the chain belt structure.

[0039] 1-frame; 101-chain guide platform; 102-block chain channel; 103-pin chain channel; 104-chain traction mechanism;

[0040] 2-upper slider mold; 201-upper slider cylinder; 202-slider seat; 203-slider cavity; 204-minute hand; 205-outer side of minute hand;

[0041] 3-upper stop positioning mechanism; 301-belt plate; 302-belt plate cylinder; 303-positioning seat; 304-chain tooth channel; 305-belt channel; 306-positioning needle; 3061-chain tooth resistance surface; 307-"L" type groove; 308-belt pressing plane; 309-belt pulling surface; 310-positioning needle cylinder; 311-thrust rod; 312-vertical groove; 313-pin shaft;

[0042] 320-slide plate; 321-slide seat; 322-adjusting seat; 323-adjusting screw; 324-adjusting block; 325-locking nut; 326-linear rail; 327-tension spring; 328-positioning cylinder; 330-detection baffle; 331-induction switch plate;

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

[0044] 5- latch induction mechanism; 501- latch triggering swing rod; 502- latch seat; 503- latch swing rod induction switch;

[0045] 8-slider; 801-triangular chain needle; 802-tooth groove; 803-tooth inlet; 804-center line of the slider; 805-outer side of the slider;

[0046] 9-chain belt; 901-upper stop straight code; 903-square; 904-cloth belt; 905-chain tooth; 906-pin; 907-transition section. DETAILED DESCRIPTION

[0047] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0048] A single-side chain threading machine for upper stop straight code, comprising a chain belt guide platform 101, a chain belt traction mechanism 104, an upper slider mold 2 and an upper stop positioning mechanism 3 arranged on a frame 1, the chain belt guide platform 101 is respectively provided with a square chain belt channel 102 and a latch chain belt channel 103, a square sensing mechanism 4 is provided on the square chain belt channel 102, the upper stop positioning mechanism 3 comprises a belt-passing plate 301 and a belt-passing plate cylinder 302 for driving the belt-passing plate to move left and right, a positioning seat 303 is provided on the belt-passing plate 301, a belt-passing channel is formed between the belt-passing plate 301 and the positioning seat 303, the belt-passing channel comprises a sprocket channel 304 and a cloth belt channel 305, a positioning pin 306 and a positioning pin driving mechanism for driving the positioning pin to move up and down are provided on the sprocket channel 304;

[0049] The upper slider mold 2 includes an upper slider cylinder 201 and a slider seat 202, a slider cavity 203 is formed on the slider seat 202, a minute hand 204 is fixed in front of the slider cavity 203, and the vertical distance from the outer side 205 of the minute hand to the slider center line 804 is greater than the vertical distance from the outer side 805 of the slider to the slider center line 804.

[0050] The chain belt position is sensed by the block sensing mechanism, and then the upper stop positioning mechanism is controlled to locate the position of the upper stop straight code 901, and the upper stop straight code 901 of the chain belt is positioned to the preset position of the slider 8, and then the upper slider mold 2 is controlled to come up, and the slider 8 is transported to the preset position, and the belt passing plate cylinder 302 drives the belt passing 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 slider, and then the chain teeth 905 are sent to the slider 8 through the chain belt traction mechanism 104 to complete the chain threading. However, since there is a triangular chain dividing needle 801 in the slider 8, the upper straight stop code 901 is easily stuck when passing through the triangular chain dividing needle 801. Therefore, the minute needle 204 passes through the front of the slider cavity, and the vertical distance from the outer side 205 of the minute needle to the center line 804 of the slider is greater than the vertical distance from the outer side 805 of the slider to the center line 804 of the slider. Therefore, the chain belt in front of the upper straight stop code 901 is offset to the side at an angle that allows the upper straight stop code 901 to avoid the triangular chain dividing needle 801, preventing the triangular chain dividing needle 801 from getting stuck in the upper stop, thereby improving the yield rate and completing automatic chain threading of the chain belt of the upper straight stop code without causing damage to the chain teeth.

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

[0052] The height of the "L"-shaped groove 307 is smaller than the height of the sprocket, and the distance from the pulling surface 309 of the cloth tape to the inner side of the sprocket channel is smaller than the width of the sprocket. The width and height of the opening formed by the "L"-shaped groove and the sprocket channel are smaller than the width and height of the sprocket, so that the upper stop straightening code can be stably blocked to achieve more stable positioning of the upper stop straightening code.

[0053] The positioning needle driving mechanism includes a positioning needle cylinder 310 fixed on the positioning seat 303, the output end of the positioning needle cylinder 310 is rotatably connected to a push rod 311, and the other end of the push rod 311 is rotatably connected to a positioning needle 306. The positioning seat 303 is formed with a vertical slot 312 for the positioning needle 306 to move up and down, and a horizontal slot for the push rod 311 to rotate. A pin 313 is fixed in the horizontal slot and passes through the push rod 311. The push rod 311 rotates around the pin 313. The positioning needle 306 and its rotating mechanism are arranged in the positioning seat 303, which can make the structure more stable. The movement of the positioning needle is guided by the vertical slot 312. Since the chain belt is soft after all, it moves up and down a lot during operation. After moving up, the positioning needle can be retracted into the positioning seat, and it is not easy to interfere with the chain belt.

[0054] The belt-passing plate 301 and the positioning seat 303 are both fixed on the slide plate 320, and the slide plate 320 is slidably arranged on the slide seat 321, and the slide seat 321 is fixed on the frame 1, and the belt-passing plate cylinder 302 is also fixed on the slide seat 321. Through the above arrangement, the belt-passing plate cylinder 302 telescopically drives the slide plate 320 to slide on the slide seat 321, and the belt-passing plate 301 and the positioning seat 303 are both arranged on the slide plate 320, so the belt-passing plate 301 and the positioning seat 303 slide under the drive of the belt-passing plate cylinder 302 to achieve left and right movement, and the positioning pin 306 in the positioning seat 303 can be controlled to come down, and the cloth belt pulling surface 309 of the positioning pin is against the inner side of the cloth belt in front of the upper stop straight code, and then the belt-passing plate cylinder 302 drives the positioning seat 303 to move outward, and the positioning pin 306 in the positioning seat pulls the chain belt to open a hole for the pull head 8 to come up.

[0055] The slide plate 320 is fixed with an adjustment seat 322, and an adjustment screw 323 is fixed on the adjustment seat 322. The positioning seat 303 is fixed with an adjustment block 324 corresponding to the adjustment screw 323. The adjustment screw 323 passes through the adjustment block 324 and is fastened by a locking nut 325. The position of the positioning seat can be adjusted by setting the adjustment seat, the adjustment screw and the adjustment block, so that the position of the positioning pin can be adjusted according to the size of the chain tooth.

[0056] The upper stop positioning mechanism also includes a linear rail 326 fixed on the bracket, and the linear rail 326 is parallel to the moving direction of the chain belt. The slide 321 is slidably set on the linear rail 326. The frame 1 is also provided with a tension spring 327, which is connected to the slide 321 and always gives the slide 321 a pulling force to pull backward. A positioning cylinder 328 is also provided at the rear of the slide 321, and the extended end of the positioning cylinder 328 extends forward; a detection baffle 330 is also fixed to the outer side of the slide 321, and an induction switch plate 331 is provided on the frame corresponding to the detection baffle. When the induction switch plate 331 cannot sense the detection baffle 330, the extended end of the positioning cylinder 328 is controlled to extend and abut against the rear side of the slide 321. Through the setting of the detection baffle 330 and the induction switch plate 331, after the positioning pin 306 comes down, the positioning pin 306 abuts against the front end of the upper stop straight code 901. Since the chain belt is still moving, the upper stop straight code brings the positioning pin 306 (the positioning seat 303 and the entire slide 321) forward together until the induction switch plate 331 can no longer sense the detection baffle 330, proving that the slide 321 has moved into position (the upper stop straight code has moved to the set position), and the extended end of the positioning cylinder 328 extends out to abut against the rear side of the slide 321 to prevent the slide 321 from being pulled back by the tension spring 327. When the chain is threaded, the extended end of the positioning cylinder 328 retracts, and the slide 321 is pulled back into position by the tension spring 327.

[0057] The latch chain channel 103 is provided with a latch sensing mechanism 5, which is staggered with the block sensing mechanism 4. When a time difference is detected in the detected signal, the device is controlled to stop running when the time difference is too large or too small. By staggering the latch sensing mechanism 5 and the block sensing mechanism 4, when the time difference between the latch and the block is detected to be greater than or less than the set time value, it is proved that the spacing between the latch and the block is different from the set spacing, and the latch sub-chain and the block sub-chain on the device may be stuck, or the installation is misaligned. In order to prevent the device from continuing to run and causing damage, the device is controlled to stop running.

[0058] The latch sensing mechanism 5 includes a latch triggering swing rod 501 arranged on the latch chain channel 103, and the latch triggering swing rod 501 is rotatably arranged on the latch seat 502. The latch seat 502 is also provided with a latch swing rod sensing switch 503 corresponding to the latch triggering swing rod 501.

[0059] The block sensing mechanism 4 includes a block sensing block 401, which is arranged in the block chain channel 102. The lower end of the block sensing block 401 and the block chain channel 102 form a block chain groove. The block sensing block 401 is connected to a rotating rod 402, and the rotating rod 402 is rotatably arranged 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 slider 8 includes a triangular chain dividing needle 801 arranged in the slider, which divides the slider into two left and right tooth grooves 802. The rear end of the slider is a tooth inlet 803. A minute needle 204 is provided in front of the slider cavity 203. The vertical distance from the outer side 205 of the minute needle to the center line 804 of the slider is greater than the vertical distance from the outer side 805 of the slider to the center line 804 of the slider. Therefore, when the upper slider mold sends the slider to the set position, the minute needle 204 offsets the chain belt in front of the upper stop straight code 901 to the side at an angle that allows the upper stop straight code 901 to avoid the triangular chain dividing needle 801, thereby preventing the triangular chain dividing needle 801 from getting stuck in the upper stop.

[0062] Firstly, the chain belt of the application enters the equipment in the state of split chain, that is, the split chain with blocks goes through the block chain belt channel 102, and the split chain with pins goes through the pin chain belt channel 103. When the blocks on the block split chain go under the block sensing mechanism and the block sensing switch senses it, the belt-passing plate cylinder 302 is controlled to move the belt-passing plate 301 and the positioning seat 303 toward the direction of the chain belt, and then the positioning pin 306 is controlled to move downward so that the positioning pin 306 is against the front of the upper stop straight code 901, and the cloth belt pulling surface 309 of the positioning pin is against the inner side of the cloth belt of the transition section 907 in front of the upper stop straight code. Since the chain belt is still moving, the upper stop straight code moves forward with the positioning pin 306 (the positioning seat 303 and the entire slide seat 321) until the sensing switch is turned on. When the plate 331 cannot sense the detection baffle 330, it proves that the slide 321 has moved into place (the upper stop straight code has moved to the set position), and the protruding end of the positioning cylinder 328 extends out to press against the rear side of the slide 321 to prevent the slide 321 from being pulled back by the tension spring 327, and then the belt-passing plate cylinder 302 drives the positioning seat 303 to move outward, and the positioning needle 306 in the positioning seat pulls the chain belt to open a hole for the slider 8 to come up, and then controls the upper slider mold 2 to come up and transport the slider 8 to the preset position, and the belt-passing plate cylinder 302 drives the belt-passing plate 301 to move the upper stop straight code 901 inward, so that the upper stop straight code 901 is aligned with the inlet tooth mouth 803 of the slider, and then the chain teeth 905 are sent to the slider 8 through the chain belt traction mechanism 104 to complete the chain threading.

[0063] The invention has the characteristics of not causing damage to the chain teeth and being able to automatically thread the chain belt with the upper stop straight code.

[0064] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-side chain threading machine with an upper stop straight code, comprising a chain belt guide platform, a chain belt traction mechanism, an upper slider mold and an upper stop positioning mechanism arranged on a frame, wherein the chain belt guide platform is respectively provided with a block chain belt channel and a latch chain belt channel, and a block sensing mechanism is provided on the block chain belt channel, characterized in that: The upper stop positioning mechanism includes a belt-passing plate and a belt-passing plate cylinder for driving the belt-passing plate to move left and right. A positioning seat is provided on the belt-passing plate. A belt-passing channel is formed between the belt-passing plate and the positioning seat. The belt-passing channel includes a sprocket channel and a cloth belt channel. A positioning pin and a positioning pin driving mechanism for driving the positioning pin to move up and down are provided on the sprocket channel. The upper slider mold includes an upper slider cylinder and a slider seat, a slider cavity is formed on the slider seat, a minute hand is fixed in front of the slider cavity, and the vertical distance from the outer side of the minute hand to the center line of the slider is greater than the vertical distance from the outer side of the slider to the center line of the slider.

2. A single-side chain threading machine with a top stop straight code according to claim 1, characterized in 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 the cloth belt pressing surface, the inner side surface of the "L"-shaped groove is the cloth belt pulling surface, and the rear side surface of the "L"-shaped groove is the chain tooth resisting surface.

3. A single-side chain threading machine with a top stop straight code according to claim 2, characterized in that: The height of the "L"-shaped groove is smaller than the height of the chain teeth, and the distance from the pulling surface of the cloth tape to the inner side surface of the chain tooth channel is smaller than the width of the chain teeth.

4. A single-side chain threading machine with top stop straight code according to claim 1, characterized in that: The positioning needle driving mechanism includes a positioning needle cylinder fixed on the positioning seat, the output end of the positioning needle cylinder is rotatably connected to a push rod, and the other end of the push rod is rotatably connected to the positioning needle. The positioning seat is formed with a vertical groove for the positioning needle to move up and down, and a horizontal groove for the push rod to rotate. A pin shaft is fixed in the horizontal groove and passes through the push rod, and the push rod rotates around the pin shaft as the axis.

5. The one-side chain threading machine with top stop straight code according to claim 1, characterized in that: The belt-passing plate and the positioning seat are both fixed on a slide plate, the slide plate is slidably arranged on a slide seat, the slide seat is fixed on a frame, and the belt-passing plate cylinder is also fixed on the slide seat.

6. A single-side chain threading machine with a top stop straight code according to claim 5, characterized in that: An adjusting seat is fixed on the slide, an adjusting screw is fixed on the adjusting seat, an adjusting block corresponding to the adjusting screw is fixed on the positioning seat, and the adjusting screw passes through the adjusting block and is fastened by a locking nut.

7. The one-side chain threading machine with top stop straight code according to claim 5, characterized in that: The upper stop positioning mechanism also includes a linear rail fixed on the bracket, the linear rail and the moving direction of the chain belt are parallel, the slide is slidably arranged on the linear rail, the frame is also provided with a tension spring, the tension spring is connected to the slide and always gives the slide a pulling force to pull backward, and a positioning cylinder is also provided at the rear of the slide, and the protruding end of the positioning cylinder protrudes forward; A detection baffle is also fixed on the outer side of the slide, and an induction switch plate is arranged on the frame corresponding to the detection baffle. When the induction switch plate cannot sense the detection baffle, the extended end of the positioning cylinder is controlled to extend and abut against the rear side of the slide.

8. The one-side chain threading machine with top stop straight code according to claim 1, characterized in that: The latch chain channel is provided with a latch sensing mechanism, which is staggered with the block sensing mechanism. A time difference is detected in the signal. When the time difference is detected to be too large or too small, the control device stops running.

9. A single-side chain threading machine with a top stop straight code according to claim 8, characterized in that: The latch sensing mechanism comprises a latch triggering swing rod arranged on the latch chain channel, the latch triggering swing rod is rotatably arranged on the latch seat, and the latch seat is also provided with a latch swing rod sensing switch corresponding to the latch triggering swing rod.

10. A single-side chain threading machine with a top stop straight code according to claim 1 or 8, characterized in that: The block sensing mechanism includes a block sensing block, which is arranged in a 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, which is rotatably arranged on a bracket. The bracket is also provided with a block sensing switch corresponding to the rotating rod.

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