CN111887546B - Production device for split zipper - Google Patents
Production device for split zipper Download PDFInfo
- Publication number
- CN111887546B CN111887546B CN202010258271.2A CN202010258271A CN111887546B CN 111887546 B CN111887546 B CN 111887546B CN 202010258271 A CN202010258271 A CN 202010258271A CN 111887546 B CN111887546 B CN 111887546B
- Authority
- CN
- China
- Prior art keywords
- driving
- zipper tape
- zipper
- chain belt
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000010009 beating Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 241000008225 Pogonichthys macrolepidotus Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
- A44B19/60—Applying end stops upon stringer tapes
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
- A44B19/62—Assembling sliders in position on stringer tapes
Landscapes
- Slide Fasteners (AREA)
Abstract
The application provides a split zipper production device which comprises a frame, a square block clamp holder for clamping squares on a zipper tape, a zipper tape mechanism for driving the square block clamp holder to reciprocate, a zipper tape clamp holder for clamping the zipper tape, a zipper tape mechanism for cutting the zipper tape and a zipper tape transfer mechanism for driving the zipper tape clamp holder to reciprocate, wherein the square block clamp holder, the zipper tape mechanism, the zipper tape clamp holder and the zipper tape transfer mechanism are all arranged on the frame and supported by the frame. The application can avoid the mutual interference of the movements of each mechanism, can complete the actions of cutting the belt, threading the slider and beating the upper stop without exchanging the head and the tail of the chain belt, simplifies the equipment configuration, improves the degree of automation, and simultaneously remarkably improves the production efficiency of the open-end zipper.
Description
Technical Field
The application belongs to the technical field of zipper production, and particularly relates to a production device for a split-tail zipper.
Background
The split zipper is a connecting piece capable of being repeatedly pulled and pulled open, is commonly used on products such as clothes, packaging bags and the like, and structurally comprises a chain belt, a pull head, an upper stopper, a bolt and a square block (also known as a socket), and is required to be correspondingly arranged on the chain belt during production, and the chain belt is cut off (namely the belt is cut) at a proper time. In the production process, the square and the bolt are generally installed through a square bolt machine, but the subsequent cutting of the belt, the threading of the pull head and the beating of the stopper are completed through other equipment. Generally, a block and a pin of the open-tailed zipper are mounted at the tail part of a chain belt, and when the block and the pin are mounted, the tail part of the chain belt needs to be conveyed forwards so as to smoothly mount the block and the pin at the tail part of the chain belt, and then the block and the pin are stamped and fixed on the chain belt; then cut off the chain belt, exchange the head and the afterbody of chain belt again, make the head of chain belt convey forward to make the pull head wear on the chain belt (wear the pull head promptly) from the head of chain belt, will go up to end the head of installing at the chain belt again, will go up to end the punching press and fix on the chain belt at last (beat promptly and end), production efficiency is lower.
Disclosure of Invention
The application aims to provide a production device for a split zipper, which aims to solve the technical problem of lower production efficiency of the split zipper.
In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides a split zipper apparatus for producing, includes the frame, is used for holding the square block holder on the chain belt, is used for driving square block holder makes reciprocating motion's zipper strip mechanism, is used for the centre gripping the chain belt holder of chain belt, is used for cutting off the chain belt mechanism of chain belt and is used for driving chain belt holder makes reciprocating motion's chain belt transfer mechanism, square block holder, zipper strip mechanism, chain belt holder and chain belt transfer mechanism all install in the frame and by the frame support.
Further, the square clamp holder comprises a first clamping block, a second clamping block and a first driving component, wherein the first driving component is connected with the first clamping block and used for driving the first clamping block to be close to or far away from the second clamping block, and the zipper strip mechanism is connected with the first driving component and used for driving the first driving component to reciprocate.
Further, a surface of the first clamping block facing the second clamping block is provided with a groove for accommodating a square block on the chain belt.
Further, the zipper strip mechanism comprises a slider and a first driving assembly for driving the slider to reciprocate linearly, and the block holder is mounted on the slider.
Further, the first driving assembly comprises a driving wheel arranged on the frame, a driven wheel arranged on the frame, a transmission belt connected between the driving wheel and the driven wheel, and a second driving part arranged on the frame and used for driving the driving wheel to rotate, and the sliding block is fixed on the transmission belt.
Further, the cutter chain belt mechanism comprises a cutter and a third driving part which is arranged on the frame and used for driving the cutter to reciprocate linearly.
Further, the chain belt clamp comprises a first clamping plate, a second clamping plate pivoted to the first clamping plate and a second driving assembly for driving the first clamping plate and the second clamping plate to rotate relatively.
Further, the second driving assembly comprises a driving gear, a driven gear, a rack and a fourth driving component, the driven gear is connected with the driving gear in an intermeshing mode, the rack is connected with the driving gear in an intermeshing mode, the fourth driving component is used for driving the rack to reciprocate, the first clamping plate is fixedly connected with the driving gear, and the second clamping plate is fixedly connected with the driven gear.
Further, the chain belt transfer mechanism comprises a mounting frame and a fifth driving part for driving the mounting frame to reciprocate linearly, the third driving part is fixedly arranged on the mounting frame, the rack is slidably arranged on the mounting frame, and the driving gear and the driven gear are respectively rotatably arranged on the mounting frame.
Further, the split-tail zipper production device further comprises a zipper belt guide mechanism, wherein the zipper belt guide mechanism comprises a first guide plate and a second guide plate, and a strip-shaped positioning cavity for a zipper belt to pass through is formed between the first guide plate and the second guide plate.
The chain belt cutting mechanism has the beneficial effects that the chain belt cutting mechanism can smoothly cut off the chain belt by clamping the square through the square clamp holder and pulling the chain belt leftwards; the chain belt clamping device clamps the chain belt and transfers the chain belt downwards, so that the chain belt is transferred to the position of the pull-through head to be driven to the upper stop mechanism after being cut off, the mutual interference of the movements of each mechanism can be avoided, the actions of cutting the belt, pulling the pull-through head and driving the upper stop can be completed under the condition that the head and the tail of the chain belt are not required to be exchanged, the equipment configuration is simplified, the automation degree is improved, and meanwhile, the production efficiency of the open-tail zipper is remarkably improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a schematic view of the block holder of the embodiment of the present application after it has been moved to the right;
FIG. 3 is a schematic view of the embodiment of the application after the block holder moves to the left and the chain belt holder moves upwards;
Fig. 4 is a schematic view of the chain belt gripper after being moved downward in the embodiment of the present application.
Wherein, each mark in the figure is as follows:
1. A frame; 2. a block holder; 21. a first clamping block; 211. a groove; 22. a second clamping block; 23. a first driving part; 3. a zipper tape mechanism; 31. a slide block; 321. a driving wheel; 322. driven wheel; 323. a transmission belt; 4. a chain cutting belt mechanism; 41. a cutter; 42. a third driving part; 5. a chain belt clamp holder; 51. a first clamping plate; 52. a second clamping plate; 531. a drive gear; 532. a driven gear; 533. a fourth driving part; 6. a chain belt transfer mechanism; 61. a mounting frame; 62. a fifth driving part; 7. the pull head is penetrated and is beaten with an upper stop mechanism; 8. a chain belt guide mechanism; 81. a first guide plate; 82. and a second guide plate.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, are for convenience of description only, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the patent, and the specific meaning of the terms described above may be understood by those of ordinary skill in the art as appropriate. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
As shown in fig. 1, a split-end slide fastener producing apparatus includes a frame 1, a block holder 2, a fastener tape mechanism 3, a fastener tape cutting mechanism 4, a fastener tape holder 5, and a fastener tape transfer mechanism 6. The block clamp 2 is arranged on the frame 1 and is used for clamping blocks on the chain belt; the zipper strip mechanism 3 is arranged on the frame 1 and connected with the square clamp holder 2, and is used for driving the square clamp holder 2 to reciprocate in the left-right direction; the chain belt cutting mechanism 4 is arranged on the frame 1 and is used for cutting the chain belt; the chain belt clamp holder 5 is arranged on the frame 1 and is used for clamping the chain belt; the chain belt transfer mechanism 6 is mounted on the frame 1 for driving the chain belt holder 5 to reciprocate in the up-down direction.
In operation, referring to fig. 2 to 4, the split zipper is transferred to the split zipper production device of the present application after being mounted with blocks and pins by the block pin machine; the zipper strip mechanism 3 drives the square block clamp holder 2 to move rightwards, and the square block clamp holder 2 clamps square blocks on the zipper strip; then the zipper strip mechanism 3 drives the square clamp holder 2 to move leftwards, and pulls the zipper strip leftwards for a certain distance; then the chain belt transfer mechanism 6 drives the chain belt clamp holder 5 to move upwards, and the chain belt clamp holder 5 clamps the chain belt pulled leftwards so as to keep fixed; then the chain belt cutting mechanism 4 works to cut the chain belt clamped by the chain belt clamp holder 5; then the block gripper 2 loosens the block on the chain belt, and the chain belt transfer mechanism 6 drives the chain belt gripper 5 gripping the chain belt to move downwards to a position where the pull-through head strikes the upper stop mechanism; then the chain belt clamp holder 5 loosens the chain belt, and the pull head penetrating and upper stopping mechanism 7 completes the pull head penetrating and upper stopping actions.
The application clamps the square by the square clamp 2 and pulls the chain belt leftwards, so that the chain belt cutting mechanism 4 can smoothly cut off the chain belt; the chain belt is clamped by the chain belt clamp holder 5 and is downwards transferred, so that the chain belt is transferred to the position of the pull-through head upper stop mechanism 7 after being cut off, the mutual interference of the movements of each mechanism can be avoided, the actions of cutting the belt, pulling the head and upper stop can be completed under the condition that the head and the tail of the chain belt are not required to be exchanged, the equipment configuration is simplified, the automation degree is improved, and meanwhile, the production efficiency of the split-tail zipper is remarkably improved.
Specifically, the block holder 2 includes a first holding block 21, a second holding block 22, and a first driving member 23, the first driving member 23 being connected to the first holding block 21 and configured to drive the first holding block 21 toward and away from the second holding block 22, and the fastener tape mechanism 3 being connected to the first driving member 23 and configured to drive the first driving member 23 to reciprocate in the left-right direction. In this embodiment, the first driving member 23 is an air cylinder, the first clamping block 21 and the second clamping block 22 are both mounted on the first driving member 23, the output end of the first driving member 23 is connected with the first clamping block 21, the first clamping block 21 can clamp a square block on the chain belt when moving close to the second clamping block 22, and the first clamping block 21 can unclamp the square block on the chain belt when moving away from the second clamping block 22.
Further, the surface of the first clamping block 21 facing the second clamping block 22 is provided with a recess 211 for receiving a square on the chain belt. When the first clamping block 21 and the second clamping block 22 clamp the blocks on the fastener tape, the blocks are accommodated in the grooves 211 of the first clamping block 21, so that the blocks can be prevented from slipping out of the first clamping block 21 and the second clamping block 22 when the fastener tape mechanism 3 pulls the fastener tape leftwards.
Specifically, the fastener tape mechanism 3 includes a slider 31 and a first driving member for driving the slider 31 to reciprocate linearly, and the block holder 2 is mounted on the slider 31. The slide block 31 is driven to reciprocate linearly in the left-right direction by the first driving unit, so that the block holder 2 mounted on the slide block 31 can pull the chain belt leftwards after holding the block.
Specifically, the first driving assembly includes a driving wheel 321 mounted on the frame 1, a driven wheel 322 mounted on the frame 1, a driving belt 323 connected between the driving wheel 321 and the driven wheel 322, and a second driving member (not shown) mounted on the frame 1 for driving the driving wheel 321 to rotate, and the slider 31 is fixed to the driving belt 323. In the present embodiment, the second driving part is a motor, and the second driving part can drive the slider 31 to reciprocate in the left-right direction through the driving wheel 321, the driven wheel 322 and the transmission belt 323, and pulls the chain belt leftwards to be cut by the chain belt cutting mechanism 4, so that the structure is simple and the operation is stable.
Specifically, the fastener tape mechanism 4 includes a cutter 41 and a third driving member 42 mounted on the frame1 for driving the cutter 41 to reciprocate linearly in the up-down direction. In this embodiment, the third driving part 42 is an air cylinder, and an output end of the third driving part 42 is connected to the cutter 41, so that the cutter 41 can be driven to move up and down, and the cutter 41 can directly cut off the chain belt when moving down.
Specifically, the chain belt gripper 5 includes a first gripper plate 51, a second gripper plate 52 pivotally connected to the first gripper plate 51, and a second driving assembly for driving the first gripper plate 51 and the second gripper plate 52 to rotate relative to each other. The first clamping plate 51 and the second clamping plate 52 can be in an unfolded state or an overlapped state by the mutual pivoting of the first clamping plate 51 and the second clamping plate 52. The first clamping plate 51 and the second clamping plate 52 can firmly clamp the chain belt when mutually rotating to a superposition state, so that the chain belt is prevented from falling after being cut off, and the chain belt can be downwards transferred to the position of the pull head penetrating and upper stopping mechanism 7 for penetrating and upper stopping; when the first clamping plate 51 and the second clamping plate 52 are in an unfolded state through pivoting, the up-and-down movement of the first clamping plate 51 and the second clamping plate 52 can avoid the chain belt, and interference is avoided.
Specifically, the second driving assembly includes a driving gear 531, a driven gear 532 meshed with the driving gear 531, a rack (not shown in the figure) meshed with the driving gear 531, and a fourth driving part 533 for driving the rack to reciprocate, where the first clamping plate 51 is fixedly connected with the driving gear 531, and the second clamping plate 52 is fixedly connected with the driven gear 532. The first clamping plate 51 and the second clamping plate 52 are respectively and fixedly connected with one gear of a pair of gear sets which are in meshed connection with each other, so that the first clamping plate 51 and the second clamping plate 52 are pivoted with each other; by the synchronous meshing rotation of the driving gear 531 and the driven gear 532, the synchronous reverse rotation of the first clamp plate 51 and the second clamp plate 52 can be achieved, so that the first clamp plate 51 and the second clamp plate 52 can be in both the unfolded and folded states. In this embodiment, the fourth driving part 533 is an air cylinder, the first clamping plate 51 and the second clamping plate 52 rotate from the unfolded state to the folded state, and the first clamping plate 51 and the second clamping plate 52 need to rotate 90 degrees respectively, that is, the driving gear 531 and the driven gear 532 need only rotate 90 degrees respectively, so that the driving gear 531 is meshed with the rack, and the rack is driven to reciprocate by the fourth driving part 533, so that the rotation of the driving gear 531 in a small range can be realized, so that the first clamping plate 51 and the second clamping plate 52 can be switched between the unfolded state and the folded state.
Specifically, the chain belt transferring mechanism 6 includes a mounting frame 61 and a fifth driving part 62 for driving the mounting frame 61 to reciprocate linearly in the up-down direction, the third driving part 42 is fixedly installed on the mounting frame 61, a rack is slidably installed on the mounting frame 61, and a driving gear 531 and a driven gear 532 are rotatably installed on the mounting frame 61, respectively. In the present embodiment, the fifth driving part 62 is an air cylinder, and the output end of the fourth driving part 533 is connected to the mounting frame 61, and the non-defective mounting frame 61 is reciprocally linearly moved in the up-down direction, so that the first and second holding plates 51 and 52 on the mounting frame 61 can hold the chain belt and downwardly transfer the chain belt.
Further, the split zipper production device of the present application further comprises a zipper guide mechanism 8, wherein the zipper guide mechanism 8 comprises a first guide plate 81 and a second guide plate 82, and a strip-shaped positioning cavity (not shown in the figure) for the zipper to pass through is formed between the first guide plate 81 and the second guide plate 82. When the zipper strip mechanism 3 drives the square clamp holder 2 to pull the zipper strip leftwards, the zipper strip passes through the strip-shaped positioning cavity formed between the first guide plate 81 and the second guide plate 82, so that the offset of the zipper strip in the pulling process can be avoided, and the accuracy of the length of the cut zipper strip is ensured.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (3)
1. The production device of the split zipper is characterized by comprising a frame, a square block clamp for clamping a square block on a zipper tape, a zipper tape mechanism for driving the square block clamp to reciprocate, a zipper tape clamp for clamping the zipper tape, a zipper tape mechanism for cutting off the zipper tape and a zipper tape transfer mechanism for driving the zipper tape clamp to reciprocate, wherein the square block clamp, the zipper tape mechanism, the zipper tape clamp and the zipper tape transfer mechanism are all arranged on the frame and supported by the frame;
The square clamp comprises a first clamping block, a second clamping block and a first driving component, wherein the first driving component is connected with the first clamping block and used for driving the first clamping block to be close to or far away from the second clamping block, and the zipper strip mechanism is connected with the first driving component and used for driving the first driving component to reciprocate;
The surface of the first clamping block facing the second clamping block is provided with a groove for accommodating a square block on the chain belt;
The zipper strip mechanism comprises a sliding block and a first driving assembly for driving the sliding block to reciprocate linearly, and the square clamp holder is arranged on the sliding block;
the cutting chain belt mechanism comprises a cutter and a third driving part which is arranged on the frame and used for driving the cutter to reciprocate linearly;
the chain belt clamp comprises a first clamping plate, a second clamping plate pivoted to the first clamping plate and a second driving assembly for driving the first clamping plate and the second clamping plate to rotate relatively;
The second driving assembly comprises a driving gear, a driven gear, a rack and a fourth driving component, the driven gear is in meshed connection with the driving gear, the rack is in meshed connection with the driving gear, the fourth driving component is used for driving the rack to reciprocate, the first clamping plate is fixedly connected with the driving gear, and the second clamping plate is fixedly connected with the driven gear;
the chain belt transfer mechanism comprises a mounting frame and a fifth driving part for driving the mounting frame to reciprocate linearly, the third driving part is fixedly arranged on the mounting frame, the rack is slidably arranged on the mounting frame, and the driving gear and the driven gear are respectively and rotatably arranged on the mounting frame.
2. The open-ended zipper manufacturing apparatus of claim 1, wherein the first drive assembly comprises a drive wheel mounted on the frame, a driven wheel mounted on the frame, a drive belt connected between the drive wheel and the driven wheel, and a second drive member mounted on the frame for driving rotation of the drive wheel, the slider being secured to the drive belt.
3. The split zipper production device of claim 1, further comprising a zipper tape guide mechanism comprising a first guide plate and a second guide plate, wherein a strip-shaped positioning cavity for a zipper tape to pass through is formed between the first guide plate and the second guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010258271.2A CN111887546B (en) | 2020-04-03 | 2020-04-03 | Production device for split zipper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010258271.2A CN111887546B (en) | 2020-04-03 | 2020-04-03 | Production device for split zipper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111887546A CN111887546A (en) | 2020-11-06 |
| CN111887546B true CN111887546B (en) | 2024-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010258271.2A Active CN111887546B (en) | 2020-04-03 | 2020-04-03 | Production device for split zipper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111887546B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212280212U (en) * | 2020-04-03 | 2021-01-05 | 深圳市华圣达拉链有限公司 | Separating zipper production device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105025748B (en) * | 2013-11-18 | 2018-07-06 | Ykk株式会社 | Slide fastener discharger |
| CN104780803B (en) * | 2013-12-17 | 2017-09-26 | Ykk株式会社 | Slide fastener assembling device |
| WO2015125278A1 (en) * | 2014-02-21 | 2015-08-27 | Ykk株式会社 | Slide fastener assembling device |
| CN105495878B (en) * | 2015-12-31 | 2018-09-25 | 黄少平 | Zipper strip cut-out, penetrator, upper locking system and cut-out, above stop method at penetrator |
| CN106037171B (en) * | 2016-06-30 | 2019-01-18 | 广州市振宇拉链机械有限公司 | A kind of full-automatic nylon opens the U-shaped upper only machine of tail cutting penetrator ultrasonic |
| CN108991658B (en) * | 2018-07-09 | 2021-04-09 | 温州市金龙拉链机械有限公司 | Nylon zipper cutting head-penetrating upper stop device |
| CN109757832B (en) * | 2019-01-11 | 2021-06-25 | 广州市振宇拉链机械有限公司 | Zipper closing mechanism of open-end zipper |
-
2020
- 2020-04-03 CN CN202010258271.2A patent/CN111887546B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212280212U (en) * | 2020-04-03 | 2021-01-05 | 深圳市华圣达拉链有限公司 | Separating zipper production device |
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| CN111887546A (en) | 2020-11-06 |
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