CN114770057B - Processing method of plug disc shift-up chain - Google Patents
Processing method of plug disc shift-up chain Download PDFInfo
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- CN114770057B CN114770057B CN202210574546.2A CN202210574546A CN114770057B CN 114770057 B CN114770057 B CN 114770057B CN 202210574546 A CN202210574546 A CN 202210574546A CN 114770057 B CN114770057 B CN 114770057B
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- chain
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- traction
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- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 50
- 238000005520 cutting process Methods 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 abstract description 14
- 229920001778 nylon Polymers 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 125000003003 spiro group Chemical group 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
The invention relates to a processing method of an upshift chain, in particular to a processing method of a plug disc upshift chain. Firstly, paving a chain in a groove slideway in advance, connecting the chain to a traction device, placing the chain to be welded on a welding point of the chain, and positioning a chain link of the chain through a positioning group; after positioning, the steel wires of the crosspiece are conveyed to the welding points of the chain through the cooperation of the driving wheel and the driven wheel on the wire conveying assembly by the guide wheel on the wire conveying rail; the first driving cylinder drives the connecting block to weld, and after welding, the cutting traction tool bit is controlled to cut off the crosspiece forwards and hook the chain ring backwards to drag the chain. The invention has simple structure, overcomes the problem of the adhesive force between the nylon disc and the chain in the prior art by skillfully matching the traction assembly and the welding assembly, reduces the production cost, improves the production efficiency, improves the welding speed of the crosspiece and keeps the stability of the sliding force of the crosspiece.
Description
Technical Field
The invention relates to a processing method of a plug disc shift-up chain, in particular to a processing method of a plug disc shift-up chain.
Background
The stockline at the cultivation place generally uses 80-grade chains of phi 5 x 35 x 9, the diameter is 5MM, the inner length is 35MM, the inner width is 9MM, the material is 20Mn2, the minimum breaking force of the qualified chain is above 32KN, the yield tension is about 19KN, and the qualified chain cannot be broken and elongated when in use. The key point of the automatic feed feeding system for long-term normal operation is to see whether the nylon disc is firmly adhered to the chain or not, because the chain wheel of the power system drives the stockline to move forward through the nylon disc, if slippage occurs between the nylon disc and the chain, the whole feeding system is disabled. How to improve the adhesion between the nylon disc and the chain becomes a critical issue.
The improvement of the adhesive force between the nylon disc and the chain can be started from two aspects, on one hand, the quality of nylon can be improved, and high-quality nylon is used, but the production cost can be increased, and on the other hand, the sliding resistance after casting the nylon disc is improved by welding a crosspiece in the middle of a chain link, so that special equipment is required to be designed and manufactured for welding the crosspiece.
Disclosure of Invention
The invention aims to solve the defect that a chain is easy to wear in the prior art, and provides a processing method of a stopper disc shift-up chain.
A processing method of a stopper disc shift-up chain is characterized by comprising the following steps:
chain feeding: firstly, a chain is pre-paved in a groove slideway, and the chain is connected to a traction assembly, so that the follow-up traction is facilitated;
positioning: placing a chain to be welded on a welding point of the chain, starting a positioning assembly, and then lifting a first fixed block and a second fixed block on two sides of the welding point of the chain by a double-rod cylinder on the positioning assembly so as to position a chain link of the chain;
Feeding wires: after the chain links of the chain are positioned, guiding the forward wire to be fed through a guide wheel on a wire feeding track, and automatically feeding the steel wire of the crosspiece to the position above the welding point of the chain by matching a driving wheel and a driven wheel on a wire feeding assembly;
welding crosspieces: the first driving cylinder on the welding component is controlled to drive the connecting block to move downwards, two upper electrodes on the welding block are aligned with the lower electrode fixed on the groove slideway to weld, when one crosspiece is welded, the chain is automatically pulled to be welded by the two rings of the separating ring, so that a second crosspiece is welded by a machine, and a cycle is completed;
Cutting off the crosspiece: after welding, the second driving cylinder is controlled to control the cutting traction tool bit to move forwards and backwards, the crosspiece is cut off when the cutting traction tool bit moves forwards, and when the cutting traction tool bit returns, the chain ring is hooked and dragged backwards.
Preferably, the workbench is a square metal body or metal block, a metal boss is arranged above the workbench, a groove slideway is formed in one side of the metal boss and used for placing a chain, feet are arranged at the bottom of the workbench, and the number of the feet is 4-8.
Preferably, the groove slide way is of a shape like a Chinese character 'ji', a wire inlet for transmitting crosspiece steel wires is formed in one side of the middle of the groove slide way, fixing rods for fixing chains are arranged on one side of the groove slide way, and the number of the fixing rods is 5-9. By arranging the groove slideway, the chain can be reasonably and effectively processed, and the processing efficiency of the chain is improved.
Preferably, the welding assembly comprises a first driving cylinder, the first driving cylinder is connected to the center of the top of the first supporting frame, the first driving cylinder is connected with a welding block, two upper electrodes are respectively connected to two sides of the surface of the welding block, and two lower electrodes are correspondingly arranged on the groove slide way. The chain links can be effectively welded by arranging the welding blocks.
Preferably, the traction assembly comprises a second driving cylinder, the second driving cylinder is connected to the metal boss, one side of the second driving cylinder is connected with a supporting block, one end of the supporting block is connected with a cutting traction tool bit, the other end of the supporting block is connected with a transmission shaft for stable movement, one side of the metal boss is connected with a first mounting block, the other side of the metal boss is connected with a second mounting block, the first mounting block and the second mounting block correspond to each other, one end of the transmission shaft is connected to the first mounting block, and the other end of the transmission shaft is connected to the second mounting block. The stability of the first driving cylinder during operation can be maintained by arranging the transmission shaft.
Preferably, the cutting traction tool bit is a cutting traction integrated type, one side is a cutting cross bar when the tool bit is used for moving forwards, and the other side is a traction hook used for hooking the chain to move when the traction hook moves backwards. The integrated cutting traction tool bit saves processing space and reduces production cost.
Preferably, the positioning assembly comprises a parallel bar cylinder, the bottom of the workbench is arranged on the double bar cylinder, two piston rods are connected to the upper end of the double bar cylinder, a first fixing block and a second fixing block are connected to the two piston rods respectively, the first fixing block and the second fixing block are arranged on two sides of a welding point of the lower electrode, a groove is formed in the centers of the first fixing block and the second fixing block, and the overall structure is a concave fixing block. Through setting up this concave shape fixed block, not only guaranteed that the chain passes through smoothly, also effectual fixed to the location of chain link.
Preferably, the wire feeding assembly comprises a second supporting frame, one side of the second supporting frame is connected with a rotating motor, one end of the rotating motor is connected with a driving roller, the upper end of the driving roller is provided with a driven roller, and the surfaces of the driving roller and the driven roller are provided with a layer of rubber. And a wire feeding rail is arranged below the supporting frame and corresponds to the wire feeding port direction. Through setting up the effectual frictional force that increases the roll surface of rubber, stability when having promoted the silk greatly.
Preferably, send a track connection in one side of workstation, send a track inner wall both sides to be equipped with the leading wheel that is used for directional direction, leading wheel quantity is 6~10, has effectually promoted stability and the accuracy of sending the silk through setting up the leading wheel.
The invention has the advantages that:
The invention has simple structure, solves the problem of the adhesive force between the nylon disc and the chain in the prior art by skillfully matching the traction assembly and the welding assembly, reduces the production cost, improves the working production efficiency, improves the welding speed of the crosspiece and keeps the stability of the sliding force of the crosspiece. Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is an enlarged view of E of fig. 1 in accordance with the present invention.
Fig. 3 is a schematic view of another view structure of the present invention.
Fig. 4 is an enlarged view of F of fig. 3 in accordance with the present invention.
Fig. 5 is a front view of the structure of the present invention.
Fig. 6 is a schematic view of another view structure of the present invention.
Fig. 7 is an enlarged view of G of fig. 6 in accordance with the present invention.
In the figure: 1. a work table; 2. a rotating electric machine; 3. a second support frame; 4. a guide wheel; 5. a footing; 6. a fixed rod; 7. a metal boss; 8. a first driving cylinder; 9. a first support frame; 10. a first mounting block; 12. a support block; 13. a second mounting hole; 15. a second driving cylinder; 16. a groove slideway; 18. cutting and pulling a cutter head; 19. a lower electrode; 20. a first fixed block; 21. a second fixed block; 22. driven roller; 23. a driving roller; 24. rubber; 25. a double-rod cylinder; 26. an upper electrode; 27. and a wire feeding track.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1 to 7, a processing method of a stopper disc shift-up chain is characterized in that the processing method comprises the following steps:
chain feeding: firstly, a chain is pre-paved in a groove slideway (16), and the chain is connected to a traction assembly, so that the follow-up traction is facilitated;
Positioning: placing a chain to be welded on a welding point of the chain, starting a positioning assembly, and then lifting a first fixing block (20) and a second fixing block (21) on two sides of the welding point of the chain by a double-rod air cylinder (25) on the positioning assembly so as to position a chain link of the chain;
Feeding wires: after the chain links of the chain are positioned, guiding the steel wires to forward feed through a guide wheel (4) on a wire feeding track (27), and then automatically feeding the steel wires of the crosspiece to the positions above the welding points of the chain by matching the driving wheel and the driven wheel on the wire feeding assembly;
Welding crosspieces: the first driving cylinder (8) on the welding assembly is controlled to drive the connecting block to move downwards, two upper electrodes on the welding block are aligned with and fixed on the lower electrode (19) on the groove slideway (16), welding is carried out, certain pressure is ensured during welding, when one crosspiece is welded, the chain is automatically pulled to weld the two rings of the isolating ring, and the second crosspiece is welded by a machine, so that one cycle is completed;
Cutting off the crosspiece: after the welding is finished, the second driving cylinder (15) is controlled to control the cutting traction tool bit (18) to move forwards and backwards, the crosspiece is cut off when the cutting traction tool bit (18) moves forwards, and when the cutting traction tool bit (18) returns, the chain ring is hooked and dragged backwards.
In this embodiment, workstation (1) are square metal body or metal piece, workstation (1) top is equipped with metal boss (7), open on one side of metal boss (7) has a recess slide (16) to be used for placing the chain, workstation (1) bottom is equipped with footing (5), footing (5) quantity is 4~ 8.
In this embodiment, recess slide (16) are several font structures, open one side in the middle of recess slide (16) has the wire inlet that is used for transmitting crosspiece steel wire, recess slide (16) are fixed on workstation (1) through spiro union or welded mode, recess slide (16) one side is equipped with dead lever (6) that are used for fixed chain, dead lever (6) are fixed in one side of recess slide (16) through the mode of spiro union, dead lever (6) quantity is 5~ 9. The groove slideway (16) can reasonably and effectively process the chain, and improves the processing efficiency of the chain.
In this embodiment, the welding subassembly includes first actuating cylinder (8), first actuating cylinder (8) are fixed in first braced frame (9) top central point through the mode of spiro union, first actuating cylinder (8) include the piston cylinder and with piston cylinder associated piston rod, piston rod one end with the welding piece is connected, welding piece surface both sides are connected with two upper electrodes (26) respectively, correspond respectively and locate two lower electrodes (19) on recess slide (16), and this welding piece can effectually weld the crosspiece to the chain link. Through welding a crosspiece in the middle of the chain ring, diameter 3MM, length 25MM welds on two straight handles, increases the resistance when nylon dish slides, has welded 14 crosspieces with spot welder on a 1 meter long chain, has tested the slip power of 5 crosspieces alone before not casting nylon dish earlier, and the slip power is respectively: 650KG,530KG,625KG, 4815 KG,532KG. The remaining 9 rings were then cast with nylon discs and the sliding force of the nylon discs was tested as follows:
the 9 data are all larger than 600KG, the sliding force meets the requirement,
In this embodiment, the traction assembly includes second drive cylinder (15), second drive cylinder (15) are fixed on metal boss (7) through spiro union or welded mode, metal boss (7) one side is connected with first installation piece (10), and the opposite side is connected with the second installation piece, second drive cylinder (15) include the piston cylinder and with piston cylinder associated piston rod, piston rod one end with supporting shoe (12) are connected, supporting shoe (12) one end is connected with cutting traction tool bit (18), and the other end is connected with the transmission shaft that is used for stable removal, metal boss (7) one side is connected with first installation piece (10), and the opposite side is connected with the second installation piece, first installation piece (10) and second installation piece correspond each other, transmission shaft one end is connected on first installation piece (10), and the other end is connected on the second installation piece. The drive shaft maintains the stability of the first drive cylinder (8) during operation.
In this embodiment, cutting traction tool bit (18) is cutting traction integral type, and one side is the tool bit and is used for cutting the horizontal pole when moving forward, and the opposite side is for hooking the chain when pulling the hook and is used for back to move and remove, cutting traction tool bit (18) are fixed in supporting shoe (12) bottom through welding or spiro union mode, can drive cutting traction tool bit (18) round trip movement when second drive cylinder (15) round trip movement, and integral type cutting traction tool bit (18) has both saved the processing space and has reduced manufacturing cost.
In this embodiment, locating component includes parallel bars cylinder, double-pole cylinder (25) are connected in workstation (1) bottom, double-pole cylinder (25) include the piston cylinder and with two piston rods that the piston cylinder is associated, two piston rods are connected with first fixed block (20) and second fixed block (21) respectively, first fixed block (20) and second fixed block (21) are located the both sides of bottom electrode (19) welding point, a recess has been opened at first fixed block (20) and second fixed block (21) center, and overall structure is the fixed block of concave shape, and this concave shape fixed block has not only guaranteed that the chain can pass through smoothly, also effectually fixes a position the chain link.
In this embodiment, send silk subassembly includes second braced frame (3), second braced frame (3) one side is connected with rotating electrical machines (2), rotating electrical machines (2) are fixed on second braced frame (3) through the mode of spiro union, rotating electrical machines (2) one end is connected with drive roller (23), drive roller (23) upper end is equipped with driven voller (22), driven voller (22) are fixed at the inner wall of second braced frame (3) through swing joint's mode, drive roller (23) and driven voller (22) surface are equipped with one deck rubber (24), and this rubber (24) effectually have increased the frictional force of roll surface, have promoted the stability when sending the silk greatly. The wire feeding device is characterized in that a wire feeding rail (27) is arranged below the supporting frame in the direction corresponding to the wire feeding opening, the wire feeding rail (27) is fixed on the surface of the workbench (1) in a welding or screwing mode, guide wheels (4) used for directional guiding are arranged on two sides of the inner wall of the wire feeding rail (27), the number of the guide wheels (4) is 6-10, and the stability and the accuracy of wire feeding are effectively improved by the guide wheels (4).
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (7)
1. A processing method of a stopper disc shift-up chain is characterized by comprising the following steps:
Chain feeding: firstly, a chain is pre-paved in a groove slideway (16), and the chain is connected to a traction assembly, so that the follow-up traction is facilitated; the traction assembly comprises a second driving cylinder (15), the second driving cylinder (15) is connected to the metal boss (7), one side of the second driving cylinder (15) is connected with a supporting block (12), one end of the supporting block (12) is connected with a cutting traction tool bit (18), the other end of the supporting block is connected with a transmission shaft for stable movement, one side of the metal boss (7) is connected with a first installation block (10), the other side of the metal boss is connected with a second installation block, the first installation block (10) and the second installation block are mutually corresponding, one end of the transmission shaft is connected to the first installation block (10), and the other end of the transmission shaft is connected to the second installation block;
Positioning: the method comprises the steps that a chain to be welded is placed on a welding point of the chain, a positioning assembly is started, the positioning assembly comprises a double-rod air cylinder, the double-rod air cylinder (25) is arranged at the bottom of a workbench (1), two piston rods are connected to the upper end of the double-rod air cylinder (25), a first fixing block (20) and a second fixing block (21) are connected to the two piston rods respectively, the first fixing block (20) and the second fixing block (21) are arranged on two sides of the welding point of a lower electrode (19), a groove is formed in the centers of the first fixing block (20) and the second fixing block (21), and the overall structure is a concave fixing block; then lifting the first fixing blocks (20) and the second fixing blocks (21) on two sides of the chain welding point by the double-rod air cylinder (25) on the positioning assembly, so as to position the chain links;
Feeding wires: after the chain links of the chain are positioned, guiding the steel wires to forward feed through a guide wheel (4) on a wire feeding track (27), and then automatically feeding the steel wires of the crosspiece to the positions above the welding points of the chain by matching the driving wheel and the driven wheel on the wire feeding assembly;
Welding crosspieces: the first driving cylinder (8) on the welding assembly is controlled to drive the connecting block to move downwards, two upper electrodes on the welding block are aligned with the lower electrode (19) fixed on the groove slideway (16) to weld, certain pressure is ensured during welding, and when one crosspiece is welded, the chain is automatically pulled to weld the two rings of the isolating ring, so that the second crosspiece is welded by the machine, and a cycle is completed;
Cutting off the crosspiece: after welding, the cutting traction tool bit (18) is controlled to move forwards and backwards through controlling the second driving cylinder (15), the crosspiece is cut off when the cutting traction tool bit (18) moves forwards, the chain ring is hooked and dragged backwards when the cutting traction tool bit (18) returns, the cutting traction tool bit (18) is of a cutting traction integrated type, one side is a cutting cross rod when the tool bit is used for moving forwards, and the other side is a traction hook used for hooking a chain to move when the traction hook is used for moving backwards.
2. The method for processing the stopper disc upshift chain according to claim, wherein the method comprises the following steps: the workbench (1) is a square metal body, a metal boss (7) is arranged above the workbench (1), a groove slideway (16) is formed in one side of the metal boss (7) and used for placing a chain, feet (5) are arranged at the bottom of the workbench (1), and the number of the feet (5) is 4-8.
3. The method for processing the stopper disc upshift chain according to claim 2, wherein the method comprises the steps of: the groove slide way (16) is of a shape like a Chinese character 'ji', a wire inlet for transmitting crosspiece steel wires is formed in one side of the middle of the groove slide way (16), fixing rods (6) for fixing chains are arranged on one side of the groove slide way (16), and the number of the fixing rods (6) is 5-9.
4. The method for processing the stopper disc upshift chain according to claim 1, wherein the method comprises the steps of: the welding assembly comprises a first driving air cylinder (8), the first driving air cylinder (8) is connected to the center of the top of the first supporting frame (9), the first driving air cylinder (8) is connected with a welding block, two upper electrodes (26) are respectively connected to two sides of the surface of the welding block, and two lower electrodes (19) are correspondingly arranged on the groove slide way (16).
5. The method for processing the stopper disc upshift chain according to claim 1, wherein the method comprises the steps of: the wire feeding assembly comprises a second supporting frame (3), one side of the supporting frame is connected with a rotating motor (2), one end of the rotating motor (2) is connected with a driving roller (23), the upper end of the driving roller (23) is provided with a driven roller (22), and a wire feeding track (27) is arranged below the supporting frame corresponding to the wire feeding opening direction.
6. The method for processing the stopper disc upshift chain according to claim 5, wherein the method comprises the steps of: the surface of the driving roller (23) and the driven roller (22) is provided with a layer of rubber (24).
7. The method for processing the stopper disc upshift chain according to claim 5, wherein the method comprises the steps of: the wire feeding rail (27) is connected to one side of the workbench (1), guide wheels (4) used for directional guiding are arranged on two sides of the inner wall of the wire feeding rail (27), and the number of the guide wheels (4) is 6-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210574546.2A CN114770057B (en) | 2022-05-25 | 2022-05-25 | Processing method of plug disc shift-up chain |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210574546.2A CN114770057B (en) | 2022-05-25 | 2022-05-25 | Processing method of plug disc shift-up chain |
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| CN114770057A CN114770057A (en) | 2022-07-22 |
| CN114770057B true CN114770057B (en) | 2024-06-21 |
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| CN113814735A (en) * | 2021-09-18 | 2021-12-21 | 浙江浦江伯虎链条股份有限公司 | Automatic cut welding wire machine based on chain |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR619266A (en) * | 1926-07-24 | 1927-03-30 | Improvements in looms for weaving pile fabrics | |
| FR751639A (en) * | 1932-03-19 | 1933-09-06 | ||
| GB803125A (en) * | 1956-04-24 | 1958-10-15 | American Chain & Cable Co | Resistance welded joint and method and apparatus for producing same |
| FR1409103A (en) * | 1963-10-23 | 1965-08-20 | Guild Metal Joining Equipment | Method and apparatus for joining materials into strips |
| GB1238864A (en) * | 1967-07-19 | 1971-07-14 | ||
| JP2002355481A (en) * | 2001-05-31 | 2002-12-10 | Juki Corp | Thread cutting device for sewing machine |
| CN103192133A (en) * | 2013-04-22 | 2013-07-10 | 安吉长虹制链有限公司 | Positioning capturing structure of chain cutting machine |
| JP5777035B2 (en) * | 2013-08-08 | 2015-09-09 | ヤマトミシン製造株式会社 | Thread trimming device and thread trimming method for double chain stitch sewing machine |
| CN211638217U (en) * | 2019-12-14 | 2020-10-09 | 青岛金福泉锚链有限公司 | Accurately-positioned anchor chain gear pressing machine |
| CN214263765U (en) * | 2020-11-09 | 2021-09-24 | 浙江浦江伯虎链条股份有限公司 | Chain cutting and sorting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201631321U (en) * | 2010-03-24 | 2010-11-17 | 田淇第 | Versatile anorectal intracavity needle scalpel of cold light source |
| CN113814735A (en) * | 2021-09-18 | 2021-12-21 | 浙江浦江伯虎链条股份有限公司 | Automatic cut welding wire machine based on chain |
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