Automatic polishing equipment for continuous polishing of plastic zipper

Abstract

The invention relates to the field of zipper polishing equipment, in particular to automatic polishing equipment for continuous polishing of a plastic zipper, which comprises a vertical polishing mechanism, a transverse polishing mechanism, a zipper combining mechanism and a zipper discharging mechanism which are arranged from front to back, cutting wheels which are arranged in the vertical polishing mechanism from top to bottom, and at least two polishing wheels a and at least two polishing wheels b, the cutting wheel is used for cutting zipper rubber on zipper rubber teeth, the polishing wheel a and the polishing wheel b are used for polishing the corners between the front / rear sides and the end faces of the rubber teeth correspondingly, the transverse polishing mechanism comprises a plurality of polishing wheels c which are arranged in an arrayed mode, the end faces of the rubber teeth are polished through the polishing wheels c, and multi-directional polishing of the zipper rubber teeth is achieved. The zipper output mechanism provides power through a lower zipper output wheel, a pressure wheel tightly abuts against the lower zipper output wheel under the action of gravity, the pressure wheel is tensioned through an elastic piece, zipper output blocking is effectively prevented, full-automatic production from polishing to zipper combining and zipper output is achieved, and the zipper output mechanism is suitable for continuous operation.

Description

Technical Field

[0001] The present invention relates to the technical field of zipper polishing equipment, and particularly relates to an automatic polishing equipment for continuous polishing of plastic zippers. Background Art

[0002] A zipper is a connecting piece that joins or separates items by means of continuously arranged teeth, which can be seen everywhere in daily life. A polishing machine is one of the important equipment in the zipper production process. The existing zipper polishing device uses an ultrasonic device in an electro-degreasing chamber and a DC power supply connected to the electro-degreasing chamber and an electrolytic polishing chamber, mainly for polishing metal zippers. However, common existing zippers also include plastic zippers. Plastic zippers have the advantages of being light, having good elasticity, being washable, corrosion-resistant, and having low cost, and are also widely used. Plastic zippers are produced by continuous injection molding. After injection molding, burrs, flash, and raised injection mold gates will inevitably form on the plastic teeth of the zipper, affecting the appearance and use, and also scratching clothes or skin. The existing metal zipper polishing device is not suitable for plastic zippers.

[0003] Referring to the invention patent with the publication (announcement) number: CN216940036U and the patent name "A Polishing Device for Plastic Teeth of Zippers", there is also a polishing device dedicated to plastic zippers, which is provided with a belt passing channel, and polishing wheels are arranged at the tangential positions of the belt passing channel. When the zippers on both sides pass through the belt passing channel, the rotating polishing wheels are used to polish the end faces of the plastic teeth to remove burrs and flash on the zippers.

[0004] There are corners between the front side / rear side and the end face of the zipper chain row. However, the positions of the polishing wheels of the existing polishing devices are relatively fixed and cannot polish the corners, and can only polish the end faces of the plastic teeth of the zippers. At the same time, since plastic zippers are injection molded, it is inevitable to have pulled plastic at the mold gate, resulting in glue points on the zipper end face. These glue points are too hard for ordinary polishing wheels to polish smoothly. In addition, in the industry, in order to facilitate the continuous production of zippers, studs or knots are generally used to connect the tapes of multiple zippers of the same specification. These connection structures of the zippers will cause jams when passing through the tape discharging device after polishing. Therefore, most of the existing polishing devices can only be applicable to single zippers. Summary of the Invention

[0005] The present invention aims to provide an automatic polishing equipment for continuous polishing of plastic zippers to solve the above-mentioned problems, achieve multi-directional polishing of the plastic teeth, and achieve the purpose of cutting the pulled plastic.

[0006] To achieve the above object, the present invention provides the following technical solution: An automatic polishing device for continuous polishing of plastic zippers, comprising a vertically arranged polishing mechanism, a horizontally arranged polishing mechanism, a chain combining mechanism, and a chain discharging mechanism arranged in sequence from front to back. The vertically arranged polishing mechanism includes a cutting wheel arranged from top to bottom, and at least two a-polishing wheels and b-polishing wheels. Single-row positioning clamps are symmetrically arranged on both sides of the cutting wheel, a-polishing wheels, and b-polishing wheels. A plurality of the a-polishing wheels are inclined upwards, and a plurality of the b-polishing wheels are inclined downwards. The horizontally arranged polishing mechanism includes a plurality of c-polishing wheels arranged in sequence. Double-row positioning clamps are arranged directly above a plurality of the c-polishing wheels. The chain combining mechanism is detachably provided with a chain head for engaging the plastic teeth of the zipper. The chain discharging mechanism includes a lower belt discharging wheel, a pressure wheel, and a belt discharging motor. The output end of the belt discharging motor is connected to the lower belt discharging wheel. The pressure wheel is arranged on the top of the lower belt discharging wheel and is kept in tight contact with the lower belt discharging wheel through an elastic member.

[0007] Further, it includes a workbench. The vertically arranged polishing mechanism, the horizontally arranged polishing mechanism, the chain combining mechanism, and the chain discharging mechanism are arranged in sequence from front to back on the workbench, thereby forming an L-shaped passing route for the zipper chain row. A guiding rod is arranged on the workbench between the vertically arranged polishing mechanism and the horizontally arranged polishing mechanism.

[0008] Further, the vertically arranged polishing mechanism includes a machine case and a plurality of first driving motors. The plurality of first driving motors are respectively connected to the cutting wheel, a-polishing wheels, and b-polishing wheels. The plurality of single-row positioning clamps are movably arranged on the machine case.

[0009] Further, two a-polishing wheels and two b-polishing wheels are provided. The rotation directions of the two a-polishing wheels are opposite, and the rotation directions of the two b-polishing wheels are opposite.

[0010] Further, a horizontal rail and a first micrometer are installed on the machine case. The single-row positioning clamp is detachably provided with a first slider slidably connected to the horizontal rail. The first micrometer is elastically connected to the first slider through a tension spring, and the telescopic end of the first micrometer abuts against the first slider.

[0011] Further, cutting convex teeth are annularly distributed on the outer side of the cutting wheel.

[0012] Further, the horizontally arranged polishing mechanism includes a fixed frame, a movable frame, and a plurality of second driving motors. The movable frame slides left and right along the feeding direction on the fixed frame. The c-polishing wheels are arranged on one side of the movable frame, and the second driving motors are arranged on the other side. The c-polishing wheels and the second driving motors are connected in one-to-one correspondence. The double-row positioning clamp is movably arranged on the fixed frame.

[0013] Further, a vertical guide rail and a second micrometer are installed on the fixing frame. The double-row positioning clip is detachably provided with a second slider slidably connected to the vertical guide rail. The second micrometer is elastically connected to the second slider through a tension spring, and the telescopic end of the second micrometer abuts against the second slider.

[0014] Further, both the single-row positioning clip and the double-row positioning clip are provided with a through chain row channel, and an arc-shaped notch communicating with the chain row channel is provided on one side for exposing the zipper teeth passing through the chain row channel.

[0015] Further, a knurled texture is provided on the outer side of the lower out-belt wheel. The pressure wheel includes a gravity wheel core, and a rubber layer is provided on the outer side of the gravity wheel core.

[0016] Further, an oiling mechanism is provided between the horizontal polishing mechanism and the chain closing mechanism.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: By providing a vertical polishing mechanism and a horizontal polishing mechanism, a cutting wheel, and at least two a polishing wheels and b polishing wheels arranged vertically from top to bottom in the vertical polishing mechanism, the cutting wheel is used to cut the glue on the zipper teeth. A plurality of the a polishing wheels are arranged obliquely upward, and a plurality of the b polishing wheels are arranged obliquely downward. The a polishing wheels and the b polishing wheels are used to polish the corners between the front / rear sides and the end faces of the teeth respectively. The horizontal polishing mechanism includes a plurality of c polishing wheels arranged in a row, and the end faces of the teeth are polished by the c polishing wheels, so as to realize multi-directional polishing of the zipper teeth.

[0018] After the zipper chain rows pass through the vertical polishing mechanism and the horizontal polishing mechanism in sequence, the two chain rows are combined into a zipper by the provided chain closing mechanism, and then output through the chain output mechanism arranged behind the chain closing mechanism. The chain output mechanism is powered by the lower out-belt wheel. The pressure wheel tightly abuts against the lower out-belt wheel under the action of gravity, and the pressure wheel is tightened by the elastic member, so that the pressure wheel quickly returns to its original state after being lifted by the connecting structure of the zipper, effectively preventing the output of the zipper from jamming, realizing full-automatic production from polishing to chain closing and chain output, being suitable for continuous operation, and at the same time, by arranging the cutting wheel, and at least two a polishing wheels and b polishing wheels vertically, the space utilization rate is improved, and the floor area of the polishing equipment is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a distribution schematic diagram of the vertical polishing mechanism, the horizontal polishing mechanism, the oiling mechanism, the chain closing mechanism and the chain output mechanism in the present invention.

[0021] Figure 3 It is a schematic diagram of the running direction of the zipper chain rows of the present invention.

[0022] Figure 4 is Figure 3 An enlarged view of position A in

[0023] Figure 5 A schematic diagram of the upper part of the vertically - placed polishing mechanism in the present invention.

[0024] Figure 6 A schematic diagram of the lower part of the vertically - placed polishing mechanism in the present invention.

[0025] Figure 7 is Figure 6 An enlarged view of position B in

[0026] Figure 8 A perspective view of the horizontally - placed polishing mechanism in the present invention.

[0027] Figure 9 A schematic diagram of the connection between the c polishing wheel and the moving frame in the present invention.

[0028] Figure 10 A schematic diagram of the structure of the fixed frame in the present invention.

[0029] Figure 11 A perspective view of the double - row positioning clip in the present invention.

[0030] Figure 12 A schematic diagram of the structures of the chain - combining mechanism and the chain - discharging mechanism in the present invention.

[0031] Figure 13 A schematic diagram of the connection between the moving track and the moving frame in the present invention.

[0032] In the figure: 1. Vertically - placed polishing mechanism; 2. Horizontally - placed polishing mechanism; 3. Chain - combining mechanism; 4. Chain - discharging mechanism; 5. Workbench; 6. Oil - applying mechanism; 11. Cutting wheel; 12. a polishing wheel; 13. b polishing wheel; 14. c polishing wheel; 15. Single - row positioning clip; 22. Double - row positioning clip; 31. Chain head; 41. Lower take - out wheel; 42. Pressure wheel; 43. Elastic member; 100. Chassis; 101. First driving motor; 102. Horizontal guide rail; 103. First micrometer; 104. Pulling spring; 111. Cutting convex teeth; 141. First slider; 201. Fixed frame; 202. Moving frame; 203. Second driving motor; 211. Vertical guide rail; 212. Second micrometer; 221. Second slider; 222. Moving slider; 300. Base; 301. Proximity sensor; 2000. Clamp; 2200. Chain - row channel; 2210. Arc - shaped notch. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] As shown in the accompanying drawings, an automatic polishing device for continuous polishing of plastic zippers according to the present invention includes a vertical polishing mechanism 1, a horizontal polishing mechanism 2, a chain combining mechanism 3, and a chain discharging mechanism 4 arranged in sequence from front to back. The vertical polishing mechanism 1 includes a cutting wheel 11 arranged from top to bottom, and at least two a polishing wheels 12 and b polishing wheels 13. Single-row positioning clips 15 are symmetrically arranged on both sides of the cutting wheel 11, a polishing wheels 12, and b polishing wheels 13. A plurality of the a polishing wheels 12 are arranged obliquely upward, and a plurality of the b polishing wheels 13 are arranged obliquely downward. The inclination angles of the a polishing wheels 12 and b polishing wheels 13 correspond to each other, preferably inclined at 30-45 degrees. The horizontal polishing mechanism 2 includes a plurality of c polishing wheels 14 arranged in sequence. Double-row positioning clips 22 are arranged directly above a plurality of the c polishing wheels 14. The chain combining mechanism 3 is detachably provided with a chain head 31 for engaging the zipper teeth. The chain head 31 is a common zipper chain head 31. It should be noted that zippers of different specifications need to be adapted to different chain heads 31. Therefore, it is necessary to set it as a detachable structure to facilitate the replacement of the chain head 31. Specifically, the chain combining mechanism 3 includes a base 300 and a chain head 31. The base 300 is fixed on the workbench 5, and the chain head 31 is detachably installed on the base 300. For further explanation, magnetic attraction connection can be adopted. By using a metal chain head 31, diamond-shaped or square magnetic attraction blocks are arranged on the base 300 for attracting the chain head 31. Corresponding grooves can also be arranged on one side of the chain head 31 to prevent displacement. Or the chain head 31 can be directly installed on the base 300 by screws to facilitate the replacement of the chain head 31. The chain discharging mechanism 4 includes a lower belt discharging wheel 41, a pressure wheel 42, and a belt discharging motor. The output end of the belt discharging motor is connected to the lower belt discharging wheel 41. The pressure wheel 42 is arranged on the top of the lower belt discharging wheel 41 and is kept tightly pressed against the lower belt discharging wheel 41 through an elastic member 43.

[0035] Embodiment 1. By providing a vertically arranged polishing mechanism 1 and a horizontally arranged polishing mechanism 2, a cutting wheel 11, and at least two a polishing wheels 12 and b polishing wheels 13 arranged vertically from top to bottom in the vertically arranged polishing mechanism 1. The cutting wheel 11 is used to cut the glue on the zipper teeth. A plurality of the a polishing wheels 12 are arranged obliquely upward, and a plurality of the b polishing wheels 13 are arranged obliquely downward. The a polishing wheels 12 and b polishing wheels 13 are used to polish the corners between the front / rear sides and the end faces of the teeth respectively. For example, the a polishing wheels 12 polish the corners between the rear side and the end face of the chain row, and the b polishing wheels 13 polish the corners between the front side and the end face of the chain row. Further explanation, the two side chain rows are located on both sides of the a polishing wheels 12 / b polishing wheels 13. Therefore, at least two a polishing wheels 12 and b polishing wheels 13 are provided. By using a plurality of a polishing wheels 12 / b polishing wheels 13 and different rotation directions, both side chain rows can be polished, and it is ensured that the polishing of both side chain rows is more balanced. The horizontally arranged polishing mechanism 2 includes a plurality of c polishing wheels 14 arranged in sequence. The c polishing wheels 14 are used to polish the end faces of the teeth, realizing multi-directional polishing of the zipper teeth, and well replacing the existing polishing equipment for plastic zippers. After the zipper chain rows sequentially pass through the vertically arranged polishing mechanism 1 and the horizontally arranged polishing mechanism 2 to complete the polishing action, the two side chain rows are combined into a zipper through the provided chain combining mechanism 3, and then output through the chain output mechanism 4 arranged behind the chain combining mechanism 3. The chain output mechanism 4 is powered by the output lower belt wheel 41. The pressure wheel 42 tightly abuts against the output lower belt wheel 41 under the action of gravity, and the elastic member 43 is used to tension the pressure wheel 42, so that the pressure wheel 42 quickly returns to its original state after being lifted by the connecting structure of the zipper, realizing fully automated production from polishing to chain combining and chain output, being suitable for continuous operation. At the same time, by arranging the cutting wheel 11, and at least two a polishing wheels 12 and b polishing wheels 13 vertically, the space utilization rate is improved, and the floor area of the polishing equipment is small;

[0036] The pressure wheel 42 with a certain weight and the output lower belt wheel 41 are used in cooperation to transport the zipper out of the polishing equipment. Since each single zipper is connected by a connecting structure such as a strip nail, etc., it is necessary to increase the weight to make the pressure wheel 42 tightly abut against the output lower belt wheel 41, so as to increase the friction force between the output lower belt wheel 41 and the pressure wheel 42. In addition, it should be noted that the elastic member 43 is also used to tension the pressure wheel 42. The elastic member 43 can be realized by a tension spring 104 or a spring. The main purpose is to ensure that the pressure wheel 42 keeps tightly abutting against the output lower belt wheel 41 and prevent the pressure wheel 42 from being lifted by the connecting structure of the zipper, resulting in the zipper being unable to be transported out normally. On this basis, the outer side of the output lower belt wheel 41 is provided with a knurled texture. The pressure wheel 42 includes a gravity wheel core, and a rubber layer is arranged on the outer side of the gravity wheel core. The knurled texture and the rubber layer are both used to increase the friction force, and the gravity wheel core is a wheel core with a certain weight, ensuring that the pressure wheel 42 abuts tightly against the output lower belt wheel 41.

[0037] Embodiment 2 includes a workbench 5. The vertically arranged polishing mechanism 1, horizontally arranged polishing mechanism 2, chain combining mechanism 3 and chain discharging mechanism 4 are arranged on the workbench 5 from front to back, thus forming an L-shaped passing route for the zipper chain row. For the vertically arranged polishing structure, the cutting wheel 11, polishing wheel a 12 and polishing wheel b 13 are arranged vertically, greatly saving the floor area of the polishing equipment, and the workbench 5 can more centrally install each mechanism. The vertically arranged polishing mechanism 1, horizontally arranged polishing mechanism 2, chain combining mechanism 3 and chain discharging mechanism 4 are arranged in a straight line on the workbench 5. Further explanation: An opening is provided at the corresponding positions of the workbench 5 where the vertically arranged polishing mechanism 1 and horizontally arranged polishing mechanism 2 are located, and an exhaust fan is arranged in the opening for collecting the debris generated by polishing; as Figure 1-2 , to enable the zipper chain row to smoothly follow the L-shaped path, a guiding rod 51 is arranged between the vertically arranged polishing mechanism 1 and the horizontally arranged polishing mechanism 2 on the workbench 5 for guiding the chain row to bend through. A plurality of guiding rods 51 are provided, including a horizontal guiding rod 51 and a vertical guiding rod 51. A guiding wheel set is also provided for guiding the chain row into the vertically arranged polishing mechanism 1. The guiding wheel set is a common structure in the existing zipper industry and will not be described in detail. It should be noted that the guiding wheel set can be arranged as shown in Figure 1 above the workbench 5, or on the top of the vertically arranged polishing mechanism 1 and on the side far from the horizontally arranged polishing mechanism 2, depending on the specific situation. Further explanation: The chain combining mechanism 3 includes a proximity sensor 301 arranged in front of the chain head 31 for real-time detection of the zipper connection structure. If a zipper connection structure is detected, the machine will stop and alarm to remind the staff to handle it, helping the zipper connection structure to pass through the chain combining mechanism smoothly. In addition, sensors are also arranged on the vertically arranged polishing mechanism 1 and the chain discharging mechanism 4.

[0038] Embodiment 3. The vertical polishing mechanism 1 includes a chassis 100 and a plurality of first drive motors 101. The plurality of first drive motors 101 are respectively connected to a cutting wheel 11, a polishing wheel 12 and a polishing wheel 13. The plurality of single-row positioning clamps 15 are movably arranged on the chassis 100. The cutting wheel 11, the polishing wheel 12 and the polishing wheel 13 are all powered by the corresponding first drive motors 101, that is, independent control can be achieved, and the forward or reverse rotation of the plurality of polishing wheels 12 and the plurality of polishing wheels 13 can be realized, ensuring better and more uniform polishing effects on both side chain rows. The single-row positioning clamps 15 are used for single-side chain rows, so they need to be arranged on both sides of the cutting wheel 11, the polishing wheel 12 and the polishing wheel 13. The plurality of single-row positioning clamps 15 are movably arranged on both sides of the chassis 100, so that the single-row positioning clamps 15 corresponding to the cutting wheel 11, the polishing wheel 12 and the polishing wheel 13 can be moved away or close, so as to realize the separate or combined use for different functions. For example, if the zipper chain row does not need to cut the glue, the single-row positioning clamps 15 on both sides of the cutting wheel 11 are moved away from the cutting wheel 11, so that the chain row passing through the single-row positioning clamps 15 does not contact the cutting wheel 11. The polishing wheels 12 and 13 are preferably set to two or increased in plural. When the polishing wheels 12 and 13 are set to two, the rotation directions of the two polishing wheels 12 are opposite, and the rotation directions of the two polishing wheels 13 are opposite, that is, one polishing wheel 12 / polishing wheel 13 rotates forward and the other polishing wheel 12 / polishing wheel 13 rotates in reverse, so that the chain rows on both sides of the polishing wheel 12 / polishing wheel 13 can be polished repeatedly from different directions and evenly polished.The single-row positioning clip 15 is movably arranged on the chassis 100. The specific structure is as follows: On both sides of the cutting wheel 11, a polishing wheel 12, and a polishing wheel 13 in the chassis 100, a horizontal guide rail 102 and a first micrometer 103 are respectively installed. The single-row positioning clip 15 is detachably provided with a first slider 141 slidably connected to the horizontal guide rail 102. The first micrometer 103 is elastically connected to the first slider 141 through a tension spring 104, and the telescopic end of the first micrometer 103 abuts against the first slider 141. The fixed end of the first micrometer 103 is installed on the chassis 100. The single-row positioning clip 15 can be directly connected to the first slider 141 by screws or can be connected through another detachable structure for the replacement of the single-row positioning clip 15. When the single-row positioning clip 15 needs to be replaced, only the connection between the corresponding single-row positioning clip 15 and the first slider 141 needs to be disassembled and replaced. The first slider 141 still exists on the chassis 100, and there is no need to remove the whole thing, saving time. Further, the form of the tension spring 104 can refer to the existing structure. Both ends of the tension spring 104 are hook-shaped, and a convex rib is provided on the first slider 141 for the tension spring 104 to hook, which is convenient for disassembly and connection. By turning the first micrometer 103 to make the telescopic end extend, the single-row positioning clip 15 can be pushed out. By turning the first micrometer 103 to make the telescopic end retract, the single-row positioning clip 15 loses the abutment of the telescopic end and retracts backward under the action of the tension spring 104. The outer side of the cutting wheel 11 is annularly distributed with cutting convex teeth 111. There are gaps between adjacent cutting convex teeth 111, and the corners of the cutting convex teeth 111 have sharp parts for cutting the adhesive tape. Driven by the first driving motor 101, the cutting wheel 11 rotates continuously, and the adhesive tape protruding from the end face of the chain row is cut through the cutting convex teeth 111.

[0039] The horizontal polishing mechanism 2 includes a fixed frame 201, a moving frame 202, and a plurality of second driving motors 203. The moving frame 202 slides left and right on the fixed frame 201 in the feeding direction. Specifically, a moving track 500 is arranged on the workbench 5, and a moving slider 222 slidably connected to the moving track 500 is arranged at the bottom of the moving frame 202. And a moving motor is arranged on the workbench 5 for driving the moving frame 202 to move back and forth along the moving track 500, so that each polishing wheel 14 and the second driving motor 203 on the moving frame 202 can move back and forth. The polishing wheels 14 are arranged in a row on one side of the moving frame 202, and the second driving motors 203 are arranged in a row on the other side. The polishing wheels 14 and the second driving motors 203 are connected in one-to-one correspondence. The double-row positioning clip 22 is movably arranged on the fixed frame 201. Each polishing wheel 14 is driven by a corresponding second driving motor 203, that is, independent control can be achieved, and the forward or reverse rotation of a plurality of polishing wheels 14 can be realized. The polishing wheels 14 can be set to two or increased in plural. Preferably, Figure 8The settings shown are four c-polishing wheels 14. The first two c-polishing wheels 14 and the last two c-polishing wheels 14 rotate forward and backward respectively. At the same time, the two c-polishing wheels 14 rotating forward and backward can respectively use polishing wheels with different densities to achieve rough polishing and fine polishing. It should also be noted that several c-polishing wheels 14 are all arranged on the moving frame 202. While the c-polishing wheels 14 perform longitudinal polishing on the chain row, the moving frame 202 is used to drive the c-polishing wheels 14 to move back and forth horizontally together, increasing the polishing area of the c-polishing wheels 14. It is not limited to polishing the chain row at a single position, which can weaken the polishing lines and thus improve the polishing effect. The specific structure of the double-row positioning clamp 22 movably arranged on the fixed frame 201 is as follows: A vertical guide rail 211 and a second micrometer 212 are installed on the fixed frame 201. The double-row positioning clamp 22 is detachably provided with a second slider 221 slidably connected to the vertical guide rail 211. The double-row positioning clamp 22 can be directly connected by screws or can be connected through other detachable structures for the replacement of the double-row positioning clamp 22. The form of the tension spring 104 can refer to the existing structure. Both ends of the tension spring 104 are hook-shaped, and a convex rib is provided on the second slider 221 for the tension spring 104 to hook, which is convenient for detachable connection. The second micrometer 212 is elastically connected to the second slider 221 through the tension spring 104, and the telescopic end of the second micrometer 212 abuts against the second slider 221. One end of the tension spring 104 is connected to the fixed frame 201, and the other end is connected to the second slider 221. The connection between the vertical guide rail 211 and the second slider 221 ensures that the double-row positioning clamp 22 does not break away from the fixed frame 201. The second micrometer 212 is fixed to the top of the fixed frame 201. When the second micrometer 212 is turned to make its telescopic end extend downward, since the telescopic end abuts against the second slider 221, the double-row positioning clamp 22 is pushed downward towards the c-polishing wheel 14. When the second micrometer 212 is turned in the reverse direction to make the telescopic end retract, after the double-row positioning clamp 22 loses the thrust of the telescopic end, it moves upward under the action of the tension spring 104. The purposes of setting the first micrometer 103 and the second micrometer 212 also include being able to adjust the contact depth between the chain row and each polishing wheel or cutting wheel 11, and it is also applicable to chain rows of different specifications.

[0040] It should be noted that both the single-row positioning clip 15 and the double-row positioning clip 22 are provided with a through chain row channel 2200, and an arc-shaped notch 2210 is provided on one side and communicates with the chain row channel 2200 for exposing the zipper teeth passing through the chain row channel 2200. The single-row positioning clip 15 and the double-row positioning clip 22 are both composed of clamping plates 2000. A groove is provided on the outer side of the clamping plate 2000. When the clamping plates 2000 are assembled together, the corresponding grooves form a chain row channel 2200 for the chain row to pass through stably. At the same time, an arc-shaped notch 2210 is also provided. The arc-shaped notches 2210 on different single-row positioning clips 15 respectively correspond to the cutting wheel 11, the a polishing wheel 12, and the b polishing wheel 13, and the arc-shaped notch 2210 on the double-row positioning clip 22 corresponds to the c polishing wheel 14. The single-row positioning clip 15 is composed of two clamping plates 2000, and the double-row positioning clip 22 is composed of three clamping plates 2000, that is, the double-row positioning clip 22 is formed by combining three clamping plates 2000 to form two chain row channels 2200.

[0041] It should be noted that an oiling mechanism 6 is provided between the horizontal polishing mechanism 2 and the chain closing mechanism 3, that is, a vertical polishing mechanism 1, a horizontal polishing mechanism 2, an oiling mechanism 6, a chain closing mechanism 3, and a chain discharging mechanism 4 are arranged in sequence from front to back on the workbench 5. The oiling mechanism 6 includes an oil box and a double-row positioning clip 22. Lubricating oil is added to the double-row positioning clip 22 to make the chain closing more smooth. The oil box is used to hold the dripping lubricating oil, and the existing lubricating oil adding structure can be referred to.

[0042] The above embodiments are the preferred embodiments of the present invention. All structures similar to the present invention and equivalent changes made thereto shall fall within the protection scope of the present invention.

Claims

1. An automatic polishing device for continuous polishing of plastic zippers, characterized in that: It includes a vertically arranged polishing mechanism, a horizontally arranged polishing mechanism, a chain joining mechanism, and a chain discharging mechanism arranged from front to back. The vertically arranged polishing mechanism includes a cutting wheel, and at least two a-polishing wheels and b-polishing wheels arranged from top to bottom. Single-row positioning clamps are symmetrically arranged on both sides of the cutting wheel, a-polishing wheels, and b-polishing wheels. A number of the a-polishing wheels are arranged obliquely upward, and a number of the b-polishing wheels are arranged obliquely downward. The horizontally arranged polishing mechanism includes a number of c-polishing wheels arranged in a row, and double-row positioning clamps are arranged directly above each of the c-polishing wheels. The chain joining mechanism is detachably provided with a chain head for engaging the zipper teeth. The chain discharging mechanism includes a lower belt discharging wheel, a pressure wheel, and a belt discharging motor. The output end of the belt discharging motor is connected to the lower belt discharging wheel. The pressure wheel is arranged on top of the lower belt discharging wheel and is kept in tight contact with the lower belt discharging wheel through an elastic member.

2. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 1, characterized in that: It includes a workbench. The vertically arranged polishing mechanism, horizontally arranged polishing mechanism, chain joining mechanism, and chain discharging mechanism are arranged from front to back on the workbench, thus forming an L-shaped zipper chain row passing route. The workbench is provided with a guiding rod between the vertically arranged polishing mechanism and the horizontally arranged polishing mechanism.

3. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 2, characterized in that: The vertically arranged polishing mechanism includes a machine case and a number of first driving motors. The first driving motors are respectively connected to the cutting wheel, a-polishing wheels, and b-polishing wheels. The single-row positioning clamps are movably arranged on the machine case.

4. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 3, characterized in that: There are two a-polishing wheels and two b-polishing wheels. The rotation directions of the two a-polishing wheels are opposite, and the rotation directions of the two b-polishing wheels are opposite.

5. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 3, wherein: The machine case is equipped with a horizontal guide rail and a first micrometer. The single-row positioning clamp is detachably provided with a first slider slidably connected to the horizontal guide rail. The first micrometer is elastically connected to the first slider through a tension spring, and the telescopic end of the first micrometer abuts against the first slider.

6. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 1, characterized in that: Cutting convex teeth are annularly distributed on the outside of the cutting wheel.

7. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 2, characterized in that: The horizontally arranged polishing mechanism includes a fixed frame, a moving frame, and a number of second driving motors. The moving frame slides left and right along the feeding direction on the fixed frame. The c-polishing wheels are arranged in a row on one side of the moving frame, and the second driving motors are arranged in a row on the other side. The c-polishing wheels and the second driving motors are connected in one-to-one correspondence. The double-row positioning clamp is movably arranged on the fixed frame.

8. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 7, characterized in that: A vertical guide rail and a second micrometer are installed on the fixed frame. The double-row positioning clamp is detachably provided with a second slider slidably connected to the vertical guide rail. The second micrometer is elastically connected to the second slider through a tension spring, and the telescopic end of the second micrometer abuts against the second slider.

9. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 1, wherein: Both the single-row positioning clamp and the double-row positioning clamp are provided with a through chain row channel, and an arc-shaped notch communicating with the chain row channel is provided on one side for the zipper teeth passing through the chain row channel to be exposed.

10. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 1, characterized in that: Knurling is provided on the outside of the lower belt discharging wheel. The pressure wheel includes a gravity wheel core, and a rubber layer is provided on the outside of the gravity wheel core.

11. The automatic polishing equipment for continuous polishing of plastic zippers according to claim 1, characterized in that: An oiling mechanism is arranged between the horizontally arranged polishing mechanism and the chain joining mechanism.

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