Anti-loosening zipper and its production equipment

Abstract

The present invention discloses an anti-loosening zipper and its production equipment, including chain teeth. A fixing groove for fixing is formed at the first end of the chain teeth. The fixing groove divides the first end of the chain teeth into symmetric sliding parts, and limiting bosses are arranged on the sliding parts. The anti-loosening zipper and its production equipment provided by the present invention utilize the limiting bosses arranged at the first end of the chain teeth. The limiting bosses are arranged between the slider and the chain teeth, which can increase the friction force to play a damping role, so as to prevent the chain teeth from being pulled apart when the two pieces of fabric fixing the chain teeth are pulled. Moreover, the arc shape is used to avoid the phenomenon of jamming when the friction force is too large. An arc groove is also arranged on the sliding part, which can reduce the contact area with the slider, thereby reducing the friction force, and the smaller contact surface can also facilitate the installation of the slider and the chain teeth.

Description

Technical Field

[0001] The present invention relates to the technical field of zippers and their production equipment, and more specifically to an anti-loosening zipper and its production equipment. Background Art

[0002] A zipper, a connecting piece that enables objects to be connected or separated by interlocking and continuously arranged teeth, is widely used in clothing, luggage, outdoor products, etc.

[0003] According to the patent number CN202110832109.1, publication (announcement) date: September 17, 2021, an anti-loosening zipper and its production equipment disclosed, which relates to the technical field of zipper production, includes processing equipment. The processing equipment includes a body box for storing samples to be processed. A guiding frame for pulling the sample is arranged near the left side of the upper surface of the body box. A guiding rail for guiding and aligning the sample is arranged near the left side of the upper surface of the body box. A support plate for supporting the nailing machine is fixedly provided near the rear side at the middle position of the upper surface of the body box; this production equipment can uniformly collect zipper cloth bodies of different models and sizes, automatically produce and process zipper cloth bodies of different models and sizes, realize the function of multi-purpose use of one machine, improve the practicability of the production equipment, reduce the effective movement space between the tooth heads, effectively improve the tight connection between the tooth heads, improve the overall tight strength of the zipper, prevent the zipper from loosening, improve the practicability of the zipper, and avoid the derailment and dropping of the tooth structure.

[0004] In the prior art including the above patent, a zipper is a reusable connecting piece. To ensure the normal sliding of the slider and the teeth, a certain distance is left between the slider and the teeth. However, when people move, the clothing will be pulled due to people's movement. During the pulling process, the two pieces of cloth fixing the teeth will be pulled to move, causing the slider to slide along the teeth and open, losing the function of fixed connection. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-loosening zipper and its production equipment, aiming to solve the problem that the two pieces of cloth move, causing the slider to slide along the teeth and open, losing the function of fixed connection.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An anti-loosening zipper includes teeth. A fixing groove for fixing is opened at the first end of the teeth. The fixing groove divides the first end of the teeth into symmetrical sliding parts, and a limiting boss is arranged on the sliding parts.

[0007] Preferably, arc grooves are opened on both of the two sliding parts.

[0008] A device includes an anti-loosening zipper. The anti-loosening zipper includes an arc groove, a fixing groove and a limiting boss. It also includes a fixed turntable and a processing unit. The chain teeth are clamped on the fixed turntable, and the first end of the chain teeth extends a predetermined distance out of the fixed turntable. The processing unit includes a first cutting mechanism and a second cutting mechanism. The first cutting mechanism is used to cut the fixing groove and the limiting boss, and the second cutting mechanism is used to cut the arc groove.

[0009] Preferably, the first cutting mechanism includes symmetrically movably arranged connecting blocks. Linear cutting knives are arranged on the connecting blocks. Arc cutting knives are symmetrically rotatably connected along the linear cutting knives. The two linear cutting knives are driven to approach each other to cut the fixing groove, and the two arc cutting knives are driven to approach each other to cut the arc groove.

[0010] Preferably, it further includes a fixed shell. The connecting blocks are slidably connected to the fixed shell. An arc protrusion is arranged on the fixed shell. A fitting portion is arranged at the first end of the arc cutting knife. The fitting portion is driven to slide along the arc protrusion so that the arc cutting knife cuts out the limiting boss.

[0011] Preferably, the second cutting mechanism includes a movable cutting cylinder. A flipping cutting knife is arranged on the cutting cylinder. The flipping cutting knife cuts out the arc groove.

[0012] Preferably, a slider is fixedly connected to the connecting block. A first rack is arranged on the slider. Flipping gears are symmetrically rotatably connected to the fixed shell. A main rod is slidably connected to the fixed shell. A connecting rod is rotatably connected between the main rod and the flipping gears. The main rod moves in the vertical direction to make the flipping gears flip and engage with the first rack, so that the two connecting blocks approach or separate from each other.

[0013] Preferably, it further includes a fixed shell. A first gear is rotatably connected to the fixed shell. A second gear is arranged at the first end of the cutting cylinder. A second rack is slidably connected to the fixed shell. The second rack is driven to slide to engage with the first gear and flip, so that the second gear drives the cutting cylinder to rotate.

[0014] Preferably, a sub-rod is fixedly connected to the main rod, and a second rack is fixedly connected to the sub-rod.

[0015] Preferably, it further includes a support frame. A hydraulic cylinder is fixedly connected to the support frame, and the output end of the hydraulic cylinder is fixedly connected to the main rod.

[0016] In the above technical solution, an anti-loosening zipper and its production equipment provided by the present invention have the following beneficial effects: By using the limiting boss provided at the first end of the chain teeth, which is arranged between the slider and the chain teeth, it can increase the friction force to play a damping role, so as to prevent the chain teeth from being pulled apart when the two pieces of fabric fixing the chain teeth are pulled. And using an arc shape can avoid jamming when the friction force is too large. There is also an arc groove provided on the sliding part, which can reduce the contact area with the zipper head, thereby reducing the friction force, and the smaller contact surface can also facilitate the installation of the slider and the chain teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is the overall schematic diagram provided by the embodiment of the present invention;

[0019] Figure 2 It is the schematic diagram of the equipment and the chain teeth provided by the embodiment of the present invention;

[0020] Figure 3 It is the exploded schematic diagram of the equipment provided by the embodiment of the present invention;

[0021] Figure 4 It is the partial structural schematic diagram of the first cutting mechanism provided by the embodiment of the present invention;

[0022] Figure 5 For Figure 4 the enlarged schematic diagram at A in

[0023] Figure 6 It is the structural schematic diagram of the second cutting mechanism provided by the embodiment of the present invention;

[0024] Figure 7 It is the cross-sectional schematic diagram of the second cutting mechanism provided by the embodiment of the present invention;

[0025] Figure 8 It is the schematic diagram of the chain teeth provided by the embodiment of the present invention.

[0026] Description of the reference numerals:

[0027] 1. Chain teeth; 11. Arc groove; 12. Fixed groove; 13. Limit boss; 2. Processing unit; 20. Fixed housing; 201. Fixed plate; 2011. Protruding shaft; 2012. Rotating sleeve; 2013. Guide rail; 2014. Sliding table; 2015. Arc protrusion; 202. Side plate; 21. First cutting mechanism; 211. Connecting block; 212. Slide block; 213. First rack; 214. Reversing gear; 2141. Open part; 215. Connecting rod; 216. Linear cutting tool; 217. Arc cutting tool; 2171. Spring; 2172. Substrate; 2173. Fitting part; 22. Second cutting mechanism; 221. Cutting cylinder; 222. First gear; 223. Second rack; 224. Second gear; 23. Hydraulic cylinder; 231. Main rod; 232. Sub-rod; 3. Fixed turntable; 4. Support frame. Detailed implementation manner

[0028] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0029] As Figures 1-8 shown, an anti-loose zipper and its production equipment include chain teeth 1. A fixed groove 12 for fixing is opened at the first end of the chain teeth 1. The fixed groove 12 divides the first end of the chain teeth 1 into symmetric sliding parts. Limit bosses 13 are provided on the sliding parts, and arc grooves 11 are opened on both sliding parts;

[0030] It further includes a fixed turntable 3 and a processing unit 2. The chain teeth 1 are clamped on the fixed turntable 3, and the first end of the chain teeth 1 extends out of the fixed turntable 3 by a predetermined distance. The processing unit 2 includes a first cutting mechanism 21 and a second cutting mechanism 22. The first cutting mechanism 21 is used to cut the fixed groove 12 and the limit boss 13, and the second cutting mechanism 22 is used to cut the arc groove 11.

[0031] Specifically, the first end of the chain teeth 1 (taking Figure 8For reference, the first end (the lower right corner) is provided with a fixing groove 12 for fixing. The fixing groove 12 is fitted to the edge of the fabric so that the interlaced chain teeth 1 are fixed to the edges of the two pieces of fabric. The fixing groove 12 divides the first end of the chain teeth 1 into symmetrical sliding parts. Limiting bosses 13 are arranged on the sliding parts, and arc grooves 11 are provided on the sliding parts. During use, first, the chain teeth 1 are embedded into the fabric edge through the fixing groove 12, and then the slider is slidably connected to the chain teeth 1, and the inner wall of the slider fits and slides with the sliding part. At this time, the limiting bosses 13 are located between the slider and the chain teeth 1, playing a damping role. When the fabrics on both sides are pulled, the limiting bosses 13 can always fit the inner wall of the slider to prevent the slider from breaking the engaged chain teeth 1 due to the pull.

[0032] Tooth grooves are arranged in a circular array on the fixed turntable 3, and the chain teeth 1 are clamped on the tooth grooves. The first end of the chain teeth 1 extends out of the fixed turntable 3 by a predetermined distance (the predetermined distance is half of the length of the chain teeth 1). The processing unit 2 includes a first cutting mechanism 21 and a second cutting mechanism 22. During use, the chain teeth 1 are placed and clamped in the tooth grooves, and then the fixed turntable 3 is rotated to make the first end of the chain teeth 1 within the processing range of the processing unit 2. Then, the first cutting mechanism 21 and the second cutting mechanism 22 are started. The first cutting mechanism 21 is used to cut the fixing groove 12 and the limiting bosses 13, and the second cutting mechanism 22 is used to cut the arc grooves 11.

[0033] In the above technical solution, the limiting bosses 13 provided at the first end of the chain teeth 1 are utilized. The limiting bosses 13 are arranged between the slider and the chain teeth 1, which can increase the friction force and thus play a damping role to prevent the chain teeth 1 from being pulled apart when the two pieces of fabric fixing the chain teeth 1 are pulled. And the arc shape is used to avoid the phenomenon of jamming when the friction force is too large. An arc groove 11 is also provided on the sliding part, which can reduce the contact area with the slider, thereby reducing the friction force, and the smaller contact surface can also facilitate the installation of the slider and the chain teeth 1.

[0034] As an embodiment further provided by the present invention, the first cutting mechanism 21 includes symmetrically and movably arranged connecting blocks 211. A linear cutting tool 216 is arranged on the connecting block 211. Arc cutting tools 217 are symmetrically and rotatably connected along the linear cutting tool 216. The two linear cutting tools 216 are driven to approach each other to cut the fixing groove 12, and the two arc cutting tools 217 are driven to approach each other to cut the arc groove 11. Specifically, the first cutting mechanism 21 includes symmetrically and movably arranged connecting blocks 211. A linear cutting tool 216 is arranged on the connecting block 211. The linear cutting tool 216 is arranged at the center line of the connecting block 211. Rotating columns are symmetrically arranged on the connecting block 211 along the center line, and arc cutting tools 217 are rotatably connected to the rotating columns. In use, first, the chain teeth 1 are inlaid into the edge of the fabric through the fixing groove 12, and then the slider is slidably connected to the chain teeth 1, and the inner wall of the slider is in sliding fit with the sliding part. At this time, the limiting boss 13 is located between the slider and the chain teeth 1 to play a damping role. When the fabrics on both sides are pulled, the limiting boss 13 can always fit the inner wall of the slider to prevent the slider from breaking the engaged chain teeth 1 due to being pulled. Then, the chain teeth 1 are placed and clamped in the tooth groove, and then the fixed turntable 3 is rotated to make the first end of the chain teeth 1 within the processing range of the processing unit 2. Then, the first cutting mechanism 21 and the second cutting mechanism 22 are started. At this time, the two connecting blocks 211 approach each other, so that the two linear cutting tools 216 approach each other to cut out the fixing groove 12. At the same time, when the two arc cutting tools 217 approach each other to cut the limiting boss 13, and they are flipped according to a predetermined law during cutting. When being flipped, an arc-shaped limiting boss 13 will be cut out. Then, the second cutting mechanism 22 is used to cut the arc groove 11.

[0035] Further, the structure for driving the two connecting blocks 211 to approach each other in the above embodiment can be two hydraulic cylinders. The hydraulic cylinders are driven to push the two connecting blocks 211 to extend or retract. It can also be a rotating disk and a sliding rod on the motor. The connecting block 211 is slidably connected to the sliding rod. A connecting rod is rotatably connected between the connecting block 211 and the rotating disk. In use, the motor rotates to drive the connecting block 211 to slide along the sliding rod. Or any driving structure well-known to those skilled in the art can be used.

[0036] As the optimal embodiment provided by the present invention, it further includes a fixed shell 20. The connecting block 211 is slidably connected to the fixed shell 20. An arc-shaped protrusion 2015 is arranged on the fixed shell 20. A fitting part 2173 is arranged at the first end of the arc cutting tool 217. The fitting part 2173 is driven to slide along the arc-shaped protrusion 2015, so that the arc cutting tool 217 cuts out the limiting boss 13. Specifically, the fixed shell 20 is two symmetrically arranged fixing plates 201. The first end of the fixing plate 201 ( Figure 3For reference, the left end of the first end (the second end is the right end) is provided with a guide rail 2013 and an arc-shaped protrusion 2015. The connecting block 211 is slidably connected to the guide rail 2013. The first end of the arc cutting tool 217 (taking Figure 5 For reference, the first end is the left end) is provided with a fitting portion 2173. The fitting portion 2173 is cylindrical (the cylindrical shape can reduce the friction during fitting). A substrate 2172 is provided on the connecting block 211. A spring 2171 is fixedly connected between the substrate 2172 and the fitting portion 2173. During use, first, the chain teeth 1 are inserted into the edge of the fabric through the fixing groove 12, and then the slider is slidably connected to the chain teeth 1, and the inner wall of the slider fits and slides with the sliding portion. At this time, the limiting boss 13 is located between the slider and the chain teeth 1 to play a damping role. When the fabrics on both sides are pulled, the limiting boss 13 can always fit the inner wall of the slider to prevent the slider from pulling and breaking the engaged chain teeth 1. Then, the chain teeth 1 are placed and clamped in the tooth groove, and then the fixed turntable 3 is rotated to make the first end of the chain teeth 1 within the processing range of the processing unit 2. Then, the first cutting mechanism 21 and the second cutting mechanism 22 are started. At this time, the two connecting blocks 211 slide along the guide rail 2013, so that the two linear cutting tools 216 approach each other to cut out the fixing groove 12. At this time, the spring 2171 pushes against the arc cutting tool 217 to turn over so that the fitting portion 2173 fits the arc-shaped protrusion 2015, and as the connecting block 211 slides, the arc cutting tool 217 turns along the arc-shaped protrusion 2015 to cut out the arc-shaped outer shape of the limiting boss 13. Then, the second cutting mechanism 22 is used to cut the arc groove 11.

[0037] As another embodiment further provided by the present invention, the second cutting mechanism 22 includes a movable cutting cylinder 221, and a flipping cutter is arranged on the cutting cylinder 221, and the flipping cutter cuts out an arc groove 11. Specifically, rotating sleeves 2012 are symmetrically arranged on both fixing plates 201, the cutting cylinder 221 is rotatably connected to the rotating sleeves 2012, and a flipping cutter is arranged on the cutting cylinder 221; when in use, first embed the chain teeth 1 into the cloth edge through the fixing groove 12, then slidably connect the slider on the chain teeth 1, and the inner wall of the slider fits and slides with the sliding part. At this time, the limiting boss 13 is located between the slider and the chain teeth 1 to play a damping role. When the cloth on both sides is pulled, the limiting boss 13 can always fit the inner wall of the slider to prevent the slider from breaking the engaged chain teeth 1 due to being pulled. Then, place and snap the chain teeth 1 into the tooth groove, and then rotate the fixed turntable 3 to make the first end of the chain teeth 1 within the processing range of the processing unit 2. Then start the first cutting mechanism 21 and the second cutting mechanism 22. At this time, the two connecting blocks 211 slide along the guide rail 2013, so that the two linear cutting knives 216 approach each other to cut out the fixing groove 12. At this time, the spring 2171 pushes the arc cutting knife 217 to flip so that the fitting part 2173 fits the arc protrusion 2015, and along with the sliding of the connecting block 211, the arc cutting knife 217 flips along the arc protrusion 2015 to cut out the arc-shaped outer contour of the limiting boss 13. The cutting cylinder 221 is driven to flip so that the flipping cutter flips to cut the sliding part to cut out the arc groove 11.

[0038] As the optimal embodiment provided by the present invention, a slider 212 is fixedly connected to the connecting block 211, a first rack 213 is arranged on the slider 212, turnover gears 214 are symmetrically and rotatably connected to the fixed housing 20, a main rod 231 is slidably connected to the fixed housing 20, a connecting rod 215 is rotatably connected between the main rod 231 and the turnover gears 214, and the main rod 231 moves in the vertical direction to make the turnover gears 214 turn and engage with the first rack 213, so that the two connecting blocks 211 approach or move away from each other. Specifically, a slider 212 is fixedly connected to the connecting block 211, a first rack 213 is arranged on the slider 212, the slider 212 is slidably connected to the guide rail 2013, protruding shafts 2011 are symmetrically arranged on the fixing plate 201, the turnover gears 214 are rotatably connected to the protruding shafts 2011, an open part 2141 is formed on the turnover gears 214, a sliding table 2014 is arranged on the fixing plate 201, the main rod 231 is slidably connected to the sliding table 2014, the connecting rod 215 is rotatably connected between the main rod 231 and the open part 2141, and the turnover gears 214 are engaged with the first rack 213; during use, first, the chain teeth 1 are inlaid into the edge of the fabric through the fixing grooves 12, then the slider is slidably connected to the chain teeth 1, and the inner wall of the slider fits and slides with the sliding part. At this time, the limiting boss 13 is located between the slider and the chain teeth 1 to play a damping role. When the fabrics on both sides are pulled, the limiting boss 13 can always fit the inner wall of the slider to prevent the slider from being pulled to break the engaged chain teeth 1. Then, the chain teeth 1 are placed and clamped in the tooth grooves, and then the fixed turntable 3 is rotated to make the first end of the chain teeth 1 within the processing range of the processing unit 2. Then, the first cutting mechanism 21 and the second cutting mechanism 22 are started. At this time, the main rod 231 slides out of the fixing plate 201 along the sliding table 201 (sliding along the sliding table 201 is the vertical direction sliding), so as to drive the connecting rod 215 and the turnover gears 214 to rotate (the turnover gears 214 both turn towards the center line of the fixed housing 20), so as to engage the first rack 213 to slide and drive the two connecting blocks 211 to slide along the guide rail 2013, so that the two linear cutting knives 216 approach each other to cut out the fixing groove 12. At this time, the spring 2171 pushes against the arc cutting knife 217 to turn so that the fitting part 2173 fits the arc protrusion 2015, and along with the sliding of the connecting block 211, the arc cutting knife 217 turns along the arc protrusion 2015 to cut out the arc-shaped outer shape of the limiting boss 13. The cutting cylinder 221 is driven to turn so that the turning cutting knife turns to cut the sliding part to cut out the arc groove 11.

[0039] As the optimal embodiment provided by the present invention, it further includes a fixed housing 20. A first gear 222 is rotatably connected to the fixed housing 20. A second gear 224 is provided at the first end of the cutting cylinder 221. A second rack 223 is slidably connected to the fixed housing 20. The second rack 223 is driven to slide to engage and flip the first gear 222, so that the second gear 224 drives the cutting cylinder 221 to rotate. Specifically, a first gear 222 is rotatably connected to each of the two fixing plates 201. The first end of the cutting cylinder 221 (taking Figure 6 the left end as the reference first end) is provided with a second gear 224. A second rack 223 is slidably connected to the fixed housing 20. During use, first, the chain teeth 1 are embedded into the fabric edge through the fixing groove 12, and then the slider is slidably connected to the chain teeth 1, and the inner wall of the slider is in sliding fit with the sliding part. At this time, the limiting boss 13 is located between the slider and the chain teeth 1, playing a damping role. When the fabrics on both sides are pulled, the limiting boss 13 can always fit the inner wall of the slider to prevent the slider from being pulled to break the engaged chain teeth 1. Then, the chain teeth 1 are placed and clamped in the tooth groove, and then the fixed turntable 3 is rotated to make the first end of the chain teeth 1 within the processing range of the processing unit 2. Then, the first cutting mechanism 21 and the second cutting mechanism 22 are started. At this time, the main rod 231 slides out of the fixing plate 201 along the sliding table 2014 (sliding along the sliding table 2014 is the vertical direction sliding), so as to drive the connecting rod 215 and the flipping gear 214 to rotate (the flipping gears 214 all flip towards the center line of the fixed housing 20), so as to engage and slide the first rack 213 and drive the two connecting blocks 211 to slide along the guide rail 2013, so that the two linear cutting knives 216 approach each other to cut out the fixing groove 12. At this time, the spring 2171 pushes against the arc cutting knife 217 to flip so that the fitting part 2173 fits the arc protrusion 2015, and as the connecting block 211 slides, the arc cutting knife 217 flips along the arc protrusion 2015 to cut out the arc-shaped outer shape of the limiting boss 13. Then, the second rack 223 is driven to slide, so that the second rack 223 engages the first gear 222 and engages and drives the second gear 224 to rotate, so that the cutting cylinder 221 flips to make the flipping cutting knife flip and cut the sliding part, so as to cut out the arc groove 11 on the sliding part.

[0040] As the optimal embodiment provided by the present invention, a secondary rod 232 is fixedly connected to the main rod 231, a second rack 223 is fixedly connected to the secondary rod 232, and further includes a support frame 4. A hydraulic cylinder 23 is fixedly connected to the support frame 4, and the output end of the hydraulic cylinder 23 is fixedly connected to the main rod 231. Specifically, a secondary rod 232 is fixedly connected to the main rod 231, the second rack 223 is fixedly connected to the secondary rod 232, a hydraulic cylinder 23 is fixedly connected to the support frame 4, the output end of the hydraulic cylinder 23 is fixedly connected to the main rod 231, the fixed turntable 3 is rotatably connected to the support frame 4, and a side plate 202 is fixedly connected between two fixing plates 201 (the side plate 202 plays a protective role); during use, first insert the chain teeth 1 into the edge of the fabric through the fixing groove 12, then slidably connect the slider on the chain teeth 1, and the inner wall of the slider fits and slides with the sliding part. At this time, the limiting boss 13 is located between the slider and the chain teeth 1, playing a damping role. When the fabrics on both sides are pulled, the limiting boss 13 can always fit the inner wall of the slider to prevent the slider from breaking the engaged chain teeth 1 due to being pulled. Then place the chain teeth 1 in the tooth groove for clamping, and then rotate the fixed turntable 3 to make the first end of the chain teeth 1 within the processing range of the processing unit 2. Then start the hydraulic cylinder 23. At this time, the hydraulic cylinder 23 retracts its output end, so that the main rod 231 slides out of the fixing plate 201 along the sliding table 2014 (sliding along the sliding table 2014 is sliding in the vertical direction), driving the connecting rod 215 and the reversing gear 214 to rotate (the reversing gears 214 all turn towards the center line of the fixed housing 20), engaging the first rack 213 to slide and driving two connecting blocks 211 to slide along the guide rail 2013, so that two linear cutting tools 216 approach each other to cut out the fixing groove 12. At this time, the spring 2171 pushes the arc cutting tool 217 to turn so that the fitting part 2173 fits the arc protrusion 2015, and as the connecting block 211 slides, the arc cutting tool 217 turns along the arc protrusion 2015 to cut out the arc-shaped outer shape of the limiting boss 13. After the cutting is completed, the hydraulic rod 23 extends its output end, so that the main rod 231 slides into the fixing plate 201 along the sliding table 2014. At this time, the secondary rod 232 drives the second rack 223 and the main rod 231 to slide simultaneously, so that the second rack 223 engages the first gear 222 and drives the second gear 224 to rotate, so that the cutting cylinder 221 turns to turn the turning cutting tool to cut the sliding part, cutting out an arc groove 11 on the sliding part. Using one power source can achieve two-step cutting work.

[0041] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A production device for an anti-loosening zipper, characterized in that, Including an anti-loosening zipper, the anti-loosening zipper includes teeth (1), a fixing groove (12) for fixing is formed at the first end of the teeth (1), the fixing groove (12) divides the first end of the teeth (1) into symmetric sliding parts, and a limiting boss (13) is arranged on the sliding parts; arc grooves (11) are formed on both of the two sliding parts; It further includes a fixed turntable (3) and a processing unit (2), the teeth (1) are clamped on the fixed turntable (3), the first end of the teeth (1) extends out of the fixed turntable (3) by a predetermined distance, the processing unit (2) includes a first cutting mechanism (21) and a second cutting mechanism (22), the first cutting mechanism (21) is used for cutting the fixing groove (12) and the limiting boss (13), and the second cutting mechanism (22) is used for cutting the arc groove (11); The first cutting mechanism (21) includes symmetrically and movably arranged connecting blocks (211), a linear cutting tool (216) is arranged on the connecting blocks (211), the linear cutting tool (216) is arranged at the center line of the connecting blocks (211), rotating columns are symmetrically arranged on the connecting blocks (211) along the center line, and arc cutting tools (217) are rotatably connected to the rotating columns; the production equipment of the anti-loosening zipper further includes a fixed housing (20), and the connecting blocks (211) are slidably connected to the fixed housing (20); the fixed housing (20) is composed of two symmetric fixing plates (201), a guide rail (2013) and an arc protrusion (2015) are arranged at the first end of the fixing plate (201), the connecting blocks (211) are slidably connected to the guide rail (2013), a fitting part (2173) is arranged at the first end of the arc cutting tool (217), the fitting part (2173) is cylindrical, a base plate (2172) is arranged on the connecting blocks (211), and a spring (2171) is fixedly connected between the base plate (2172) and the fitting part (2173). The two connecting blocks (211) approach each other, so that the two linear cutting tools (216) approach each other to cut out the fixing groove (12), and at the same time the two arc cutting tools (217) approach each other to cut the limiting boss (13); the fitting part (2173) is driven to slide along the arc protrusion (2015), so that the arc cutting tool (217) cuts out the limiting boss (13); the second cutting mechanism (22) includes a movable cutting cylinder (221), a flipping cutting tool is arranged on the cutting cylinder (221), and the flipping cutting tool cuts out the arc groove (11). Rotating sleeves (2012) are symmetrically arranged on both of the two fixing plates (201), and the cutting cylinder (221) is rotatably connected to the rotating sleeves (2012).

2. The production equipment of an anti-loosening zipper according to claim 1, characterized in that, A slider (212) is fixedly connected to the connecting block (211). A first rack (213) is arranged on the slider (212). Reversing gears (214) are symmetrically and rotatably connected to the fixed housing (20). A main rod (231) is slidably connected to the fixed housing (20). A connecting rod (215) is rotatably connected between the main rod (231) and the reversing gears (214). The main rod (231) moves in the vertical direction to make the reversing gears (214) reverse and engage with the first rack (213), so that the two connecting blocks (211) approach or move away from each other.

3. The production equipment of an anti-loosening zipper according to claim 2, characterized in that, A first gear (222) is rotatably connected to the fixed housing (20). A second gear (224) is arranged at the first end of the cutting cylinder (221). A second rack (223) is slidably connected to the fixed housing (20). The second rack (223) is driven to slide to engage with the first gear (222) and reverse, so that the second gear (224) drives the cutting cylinder (221) to rotate.

4. The production equipment of an anti-loosening zipper according to claim 3, characterized in that, A secondary rod (232) is fixedly connected to the main rod (231). A second rack (223) is fixedly connected to the secondary rod (232).

5. The production equipment of an anti-loosening zipper according to claim 4, characterized in that, It further includes a support frame (4). A hydraulic cylinder (23) is fixedly connected to the support frame (4). The output end of the hydraulic cylinder (23) is fixedly connected to the main rod (231).

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