CN109015845B - Automatic feeding device of circuit board - Google Patents
Automatic feeding device of circuit board Download PDFInfo
- Publication number
- CN109015845B CN109015845B CN201810929195.6A CN201810929195A CN109015845B CN 109015845 B CN109015845 B CN 109015845B CN 201810929195 A CN201810929195 A CN 201810929195A CN 109015845 B CN109015845 B CN 109015845B
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- connecting rod
- circuit board
- fixing
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- fixed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
- B26D7/0608—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by pushers
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Abstract
The invention discloses an automatic feeding device of a circuit board, which comprises a rack, wherein a first fixing plate is arranged at the bottom end of the rack, two first fixing blocks are arranged on one side, away from the bottom of the rack, of the first fixing plate, first connecting rods are arranged on one sides, away from the first fixing plate, of the first fixing blocks, second fixing blocks are arranged on one ends, away from the first fixing blocks, of the first connecting rods, first rotating shafts penetrate through the second fixing blocks, the first rotating shafts are in threaded connection with the second fixing blocks, the first rotating shafts are threaded rods, one ends of the first rotating shafts are connected with the output ends of first motors, the second motors are fixed on the side edges of the rack, and second connecting rods are arranged on one sides, away from the first connecting rods, of the second fixing blocks. Has the advantages that: the time is greatly saved, the labor force is greatly saved, and the work efficiency of production is greatly improved.
Description
Technical Field
The invention relates to the field of circuit board design, in particular to an automatic feeding device of a circuit board.
Background
In all electronic products, the circuit board is essential part, the circuit board mainly comprises pad, the via hole, the mounting hole, the wire, components and parts, the connector, fill, electric border etc. the circuit board cutting machine can be used to the device that cuts the circuit board, the circuit board is in process of production, owing to be polylith circuit board processing together, so after preliminary completion, need cut into a plurality of single circuit boards with bold circuit board, this just needs to use the circuit board cutting machine, traditional production mode is that the manual work puts into the cutting machine with bold circuit board one by one, this kind of mode needs the manpower, there is a vacuum period in artifical the placement simultaneously, production that can not maximum efficiency, when the staff places the circuit board under the cutting machine simultaneously, in case the misoperation cutting machine will cause the injury to the staff.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The present invention provides an automatic feeding device for circuit boards, which is directed to the problems in the related art, so as to overcome the above technical problems in the related art.
The technical scheme of the invention is realized as follows:
an automatic feeding device of a circuit board comprises a frame, wherein a first fixing plate is arranged at the bottom end of the frame, two first fixing blocks are arranged on one side, away from the bottom of the frame, of the first fixing plate, first connecting rods are arranged on one sides, away from the first fixing plate, of the first fixing blocks, second fixing blocks are arranged at one ends, away from the first fixing blocks, of the first connecting rods, first rotating shafts penetrate through the second fixing blocks and are in threaded connection with the second fixing blocks, the first rotating shafts are threaded rods, one ends of the first rotating shafts are connected with the output ends of first motors, the first motors are fixed on the side edges of the frame, second connecting rods are arranged on one sides, away from the first connecting rods, of the second connecting rods are provided with third fixing blocks, one end of the third fixed block, which is far away from the second connecting rod, is fixedly connected with the bottom of the second fixed plate, one side of the second fixed plate is fixedly provided with a second motor, the output end of the second motor is provided with a second rotating shaft, one end of the second rotating shaft, which is far away from the second motor, is fixedly provided with a turntable, the edge of the turntable is provided with a third connecting rod, one end of the third connecting rod, which is far away from the turntable, is provided with a fourth connecting rod, one end of the fourth connecting rod, which is far away from the third connecting rod, is arranged in the middle of a fifth connecting rod, one end of the fifth connecting rod is arranged on the second fixed plate, the other end of the fifth connecting rod is movably connected with a sixth connecting rod, one end of the sixth connecting rod, which is far away from the fifth connecting rod, is provided with a first movable rod, the middle of the first movable rod is arranged on the second fixed, the push rod is kept away from the one end and the slider fixed connection of first movable rod, fixed slider locates in the spout, the spout is located the top of second fixed plate, the slider is kept away from one side of spout is equipped with places the board, it is equipped with a plurality of equidistant first stoppers on the board to place, first stopper is kept away from place one side of board is equipped with quantity for two horizontal poles, the both ends of horizontal pole all are equipped with the montant, the montant is kept away from the one end of horizontal pole with the top fixed connection of frame, be equipped with the circuit board between the horizontal pole, the one end of horizontal pole is equipped with the operation panel, be equipped with the cutting machine body on the operation panel, first motor is just reversing motor.
Furthermore, a second limiting block is arranged at one end, far away from the first motor, of the first rotating shaft.
Furthermore, a buffer spring is arranged between the first rotating shaft and the second fixed block.
Furthermore, the fifth connecting rod is connected with the first movable rod and the second fixed plate through a first movable bolt.
Furthermore, the distance between the first limit blocks is larger than the width of the circuit board.
Furthermore, two ends of the first connecting rod are respectively connected with the first fixed block and the second fixed block through second movable bolts, and two ends of the second connecting rod are respectively connected between the second fixed block and the third fixed block through third movable bolts.
Furthermore, a base is arranged on one side, away from the first fixed block, of the first fixed plate, a third fixed plate is arranged on one side, away from the first fixed plate, of the base, a wheel frame is arranged on one end, away from the base, of the third fixed plate, a roller is arranged in the wheel frame, and the roller is connected with the wheel frame through a wheel shaft.
Furthermore, a support frame is arranged at the bottom of the first motor and fixed on the side wall of the rack.
The invention has the beneficial effects that: when the first motor rotates forwards, the second fixed block far away from one end of the first motor is driven to move towards the direction far away from the second limit block, the angle between the first connecting rod and the second connecting rod is increased, when the angle is increased to 180 degrees, the ascending process of the second fixed plate is realized, at the moment, the first motor stops rotating, the circuit board is just positioned between the first limit blocks on the placing plate, at the moment, the second motor is started, the turntable drives the third connecting rod to move, the fifth connecting rod and the sixth connecting rod are pushed, the first movable rod is driven to move, the push rod pushes the slider operating table in the direction, when the slider pushes the circuit board on the placing plate to the position right above the operating table, the second motor stops rotating at the moment, and simultaneously, the first motor starts to rotate reversely, so that the second fixed block is moved in the direction near the second limit block, and the included angle between the first connecting rod and the second connecting rod is continuously reduced, thereby achieving the descending process, at the moment, the first motor stops rotating, at the moment, the circuit board on the placing plate is placed on the operation table and is cut by the cutting machine body, meanwhile, the second motor starts to rotate to drive the third connecting rod to pull the fifth connecting rod, so that the slide block moves towards the direction far away from the operation table, the process of ascending and feeding is convenient to prepare for the next forward rotation of the first motor, thereby realizing the continuous feeding to the operation table, saving a large amount of time, saving a large amount of labor force, greatly improving the working efficiency of production, avoiding the damage of the cutting machine body to the life safety of workers, ensuring the safety of the workers, arranging a base at the bottom of the frame, arranging rollers at one side of the base, being convenient to save a large amount of labor force in the carrying and moving processes, saving a large amount of time, and avoiding the phenomenon of toppling over caused by the uneven stress of the frame in the carrying process, the safety of the device is greatly guaranteed, the service life of the device is greatly prolonged, and damage in the moving process is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of an automatic circuit board feeding device according to an embodiment of the present invention;
fig. 2 is an enlarged view at a in fig. 1.
In the figure:
1. a frame; 2. a first fixing plate; 3. a first fixed block; 4. a first connecting rod; 5. a second fixed block; 6. a second connecting rod; 7. a third fixed block; 8. a second fixing plate; 9. a second motor; 10. a first rotating shaft; 11. a first motor; 12. a second rotating shaft; 13. a turntable; 14. a third connecting rod; 15. a fourth connecting rod; 16. a fifth connecting rod; 17. a sixth connecting rod; 18. a first movable bar; 19. a push rod; 20. a slider; 21. a chute; 22. placing the plate; 23. a first stopper; 24. a cross bar; 25. a vertical rod; 26. a circuit board; 27. an operation table; 28. a cutter body; 29. a second limiting block; 30. a buffer spring; 31. a first movable bolt; 32. a base; 33. a third fixing plate; 34. wheel frame; 35. a roller; 36. a wheel axle; 37. a support frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to an embodiment of the invention, an automatic feeding device of a circuit board is provided.
As shown in fig. 1-2, an automatic feeding device for a circuit board according to an embodiment of the present invention includes a frame 1, a first fixing plate 2 is disposed at a bottom end of the frame 1, two first fixing blocks 3 are disposed on a side of the first fixing plate 2 away from the bottom of the frame 1, first connecting rods 4 are disposed on sides of the first fixing blocks 3 away from the first fixing plate 2, second fixing blocks 5 are disposed on ends of the first connecting rods 4 away from the first fixing blocks 3, first rotating shafts 10 penetrate the second fixing blocks 5, the first rotating shafts 10 are in threaded connection with the second fixing blocks 5, the first rotating shafts 10 are threaded rods, one end of each first rotating shaft 10 is connected with an output end of a first motor 11, the first motor 11 is fixed on a side edge of the frame 1, and second connecting rods 6 are disposed on sides of the second fixing blocks 5 away from the first connecting rods 4, one end of the second connecting rod 6, which is far away from the second fixed block 5, is provided with a third fixed block 7, one end of the third fixed block 7, which is far away from the second connecting rod 6, is fixedly connected with the bottom of a second fixed plate 8, one side of the second fixed plate 8 is fixedly provided with a second motor 9, the output end of the second motor 9 is provided with a second rotating shaft 12, one end of the second rotating shaft 12, which is far away from the second motor 9, is fixedly provided with a rotating disc 13, the edge of the rotating disc 13 is provided with a third connecting rod 14, one end of the third connecting rod 14, which is far away from the rotating disc 13, is provided with a fourth connecting rod 15, one end of the fourth connecting rod 15, which is far away from the third connecting rod 14, is arranged in the middle of a fifth connecting rod 16, one end of the fifth connecting rod 16 is arranged on the second fixed plate 8, and, one end of the sixth connecting rod 17 far from the fifth connecting rod 16 is provided with a first movable rod 18, the middle of the first movable rod 18 is arranged on the second fixing plate 8, one end of the first movable rod 18 far from the sixth connecting rod 17 is provided with a push rod 19, one end of the push rod 19 far from the first movable rod 18 is fixedly connected with a slider 20, the fixed slider 20 is arranged in a sliding groove 21, the sliding groove 21 is arranged at the top of the second fixing plate 8, one side of the slider 20 far from the sliding groove 21 is provided with a placing plate 22, the placing plate 22 is provided with a plurality of first limiting blocks 23 at equal intervals, one side of the first limiting blocks 23 far from the placing plate 22 is provided with two transverse rods 24, both ends of the transverse rods 24 are provided with vertical rods 25, one end of the vertical rods 25 far from the transverse rods 24 is fixedly connected with the top of the rack 1, a circuit board 26 is arranged between the cross rods 24, an operating table 27 is arranged at one end of each cross rod 24, a cutting machine body 28 is arranged on each operating table 27, and the first motor 11 is a forward and reverse rotating motor.
Through the scheme of the invention, when the first motor 11 rotates forwards, the second fixed block 5 far away from one end of the first motor 11 is driven to move towards the direction far away from the second limit block 29, the angle between the first connecting rod 4 and the second connecting rod 6 is increased, when the angle is increased to 180 degrees, the ascending process of the second fixed plate 8 is realized, at the moment, the first motor 11 stops rotating, the circuit board 26 is just positioned between the first limit blocks 23 on the placing plate 22, at the moment, the second motor 9 is started, the turntable 13 drives the third connecting rod 14 to move, thereby the fifth connecting rod 16 and the sixth connecting rod 17 are pushed, the first movable rod 18 is driven to move, the push rod 19 pushes the operating table 27 of the slide block 20, when the slide block 20 pushes the circuit board 26 on the placing plate 22 to be right above the operating table 27, the second motor 9 stops rotating at the moment, meanwhile, the first motor 11 starts to rotate reversely, so that the second fixing block 5 moves towards the direction close to the second limiting block 29, the included angle between the first connecting rod 4 and the second connecting rod 6 is continuously reduced, the descending process is achieved, at the moment, the first motor 11 stops rotating, the circuit board 26 on the placing plate 22 is placed on the operating platform 27 and is cut by the cutting machine body 28, meanwhile, the second motor 9 starts to rotate to drive the third connecting rod 14 to pull the fifth connecting rod 16, so that the sliding block 20 moves towards the direction far away from the operating platform 27, the next forward rotation of the first motor 11 is facilitated, the ascending and feeding process is prepared, the continuous feeding to the operating platform 27 is realized, a large amount of time is saved, a large amount of labor force is saved, the working efficiency of production is greatly improved, and the damage of the cutting machine body 28 to the life safety of workers is avoided, the safety of the workers is guaranteed, the base 32 is arranged at the bottom of the frame 1, the idler wheels 35 are arranged on one side of the base 32, a large amount of labor force is saved in the carrying and moving processes conveniently, a large amount of time is saved, the phenomenon that the workers topple over due to the fact that the stress of the frame 1 is uneven in the carrying process is avoided, the safety of the device is greatly guaranteed, the service life of the device is greatly prolonged, and the damage in the moving process is avoided.
In a specific application, for the first rotating shaft 10, a second limiting block 29 is arranged at one end of the first rotating shaft 10, which is far away from the first motor 11, so that the second fixing block 5 is prevented from sliding down; for the first rotating shaft 10, a buffer spring 30 is arranged between the second fixed blocks 5 of the first rotating shaft 10, so that the second fixed blocks 5 are prevented from being impacted; for the fifth connecting rod 16, the fifth connecting rod 16 and the first movable rod 18 are connected with the second fixed plate 8 through a first movable bolt 31, so that the first movable rod 18 can move conveniently; for the first limiting blocks 23, the distance between the first limiting blocks 23 is greater than the width of the circuit board 26, so that the circuit board is convenient to transport; for the first connecting rod 4, two ends of the first connecting rod 4 are respectively connected with the first fixing block 3 and the second fixing block 5 through second movable bolts, so that the movement of the first connecting rod 4 is facilitated, two ends of the second connecting rod 6 are respectively connected between the second fixing block 5 and the third fixing block 7 through third movable bolts, so that the movement of the second connecting rod 6 is facilitated, for the base 32, a base 32 is arranged on one side of the first fixing plate 2 away from the first fixing block 3, a third fixing plate 33 is arranged on one side of the base 32 away from the first fixing plate 2, a wheel frame 34 is arranged on one end of the third fixing plate 33 away from the base, a roller 35 is arranged in the wheel frame 34, the roller 35 is connected with the wheel frame 34 through a wheel shaft 36, so that the movement of the frame 1 is facilitated, the labor force is greatly saved, and the phenomenon that the carrying process is uneven due to stress is avoided, cause the damage to whole device, this has improved the security of device greatly, has increased life simultaneously, to first motor 11, the bottom of first motor 11 is equipped with support frame 37, support frame 37 is fixed in on the lateral wall of frame 1, conveniently play the effect of support to first motor 11, avoid first motor 11 to be in unsettled placing.
In summary, according to the above technical solution of the present invention, when the first motor 11 rotates in the forward direction, the second fixed block 5 away from one end of the first motor 11 is driven to move in the direction away from the second limit block 29, the angle between the first connecting rod 4 and the second connecting rod 6 is increased, and when the angle is increased to 180 °, the ascending process of the second fixed plate 8 is realized, at this time, the first motor 11 stops rotating, the circuit board 26 is just between the first limit blocks 23 on the placing plate 22, at this time, the second motor 9 is started, the rotating disk 13 drives the third connecting rod 14 to move, thereby the fifth connecting rod 16 and the sixth connecting rod 17 are pushed, the first movable rod 18 is driven to move, the push rod 19 pushes the operating platform 27 of the slider 20, when the slider 20 pushes the circuit board 26 on the placing plate 22 to a position directly above the operating platform 27, the second motor 9 stops rotating at this time, and the first motor 11 starts to rotate reversely, so that the second fixing block 5 moves towards the direction close to the second limiting block 29, so that the included angle between the first connecting rod 4 and the second connecting rod 6 is continuously reduced, thereby achieving the descending process, at this time, the first motor 11 stops rotating, the circuit board 26 on the placing plate 22 is placed on the operating platform 27 and cut by the cutting machine body 28, and at the same time, the second motor 9 starts to rotate to drive the third connecting rod 14 to pull the fifth connecting rod 16, so that the sliding block 20 moves towards the direction far away from the operating platform 27, and the next forward rotation of the first motor 11 is facilitated, the ascending feeding process is prepared, thereby realizing continuous feeding to the operating platform 27, saving a large amount of time, saving a large amount of labor force, greatly improving the working efficiency of production, and avoiding the cutting machine body 28 from harming the life safety of workers, the safety of the workers is guaranteed, the base 32 is arranged at the bottom of the frame 1, the idler wheels 35 are arranged on one side of the base 32, a large amount of labor force is saved in the carrying and moving processes conveniently, a large amount of time is saved, the phenomenon that the workers topple over due to the fact that the stress of the frame 1 is uneven in the carrying process is avoided, the safety of the device is greatly guaranteed, the service life of the device is greatly prolonged, and the damage in the moving process is avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The automatic feeding device of the circuit board is characterized by comprising a rack (1), wherein a first fixing plate (2) is arranged at the bottom end of the rack (1), two first fixing blocks (3) are arranged on one side, far away from the bottom of the rack (1), of the first fixing plate (2), first connecting rods (4) are arranged on one sides, far away from the first fixing plate (2), of the first fixing blocks (3), one ends, far away from the first fixing blocks (3), of the first connecting rods (4) are respectively provided with a second fixing block (5), first rotating shafts (10) penetrate through the second fixing blocks (5), the first rotating shafts (10) are in threaded connection with the second fixing blocks (5), the first rotating shafts (10) are threaded rods, one ends of the first rotating shafts (10) are connected with output ends of first motors (11), the first motors (11) are fixed on the side edges of the rack (1), keep away from second fixed block (5) one side of head rod (4) all is equipped with second connecting rod (6), keep away from second connecting rod (6) the one end of second fixed block (5) all is equipped with third fixed block (7), keep away from third fixed block (7) the one end of second connecting rod (6) and the bottom fixed connection of second fixed plate (8), second fixed plate (8) one side is fixed and is equipped with second motor (9), the output of second motor (9) is equipped with second pivot (12), keep away from in second pivot (12) the one end of second motor (9) is fixed and is equipped with carousel (13), the edge of carousel (13) is equipped with third connecting rod (14), keep away from in third connecting rod (14) the one end of carousel (13) is equipped with fourth connecting rod (15), keep away from in fourth connecting rod (15) the middle part of fifth connecting rod (16) is located to the one end of third connecting rod (14) One end of the fifth connecting rod (16) is arranged on the second fixing plate (8), the other end of the fifth connecting rod (16) is movably connected with a sixth connecting rod (17), one end, far away from the fifth connecting rod (16), of the sixth connecting rod (17) is provided with a first movable rod (18), the middle of the first movable rod (18) is arranged on the second fixing plate (8), one end, far away from the sixth connecting rod (17), of the first movable rod (18) is provided with a push rod (19), one end, far away from the first movable rod (18), of the push rod (19) is fixedly connected with a sliding block (20), the fixed sliding block (20) is arranged in a sliding groove (21), the sliding groove (21) is arranged at the top of the second fixing plate (8), one side, far away from the sliding groove (21), of the sliding block (20) is provided with a placing plate (22), and the placing plate (22) is provided with a plurality of first limiting blocks (23) at equal intervals, keep away from first stopper (23) place one side of board (22) be equipped with quantity for two horizontal pole (24), the both ends of horizontal pole (24) all are equipped with montant (25), montant (25) are kept away from the one end of horizontal pole (24) with the top fixed connection of frame (1), be equipped with circuit board (26) between horizontal pole (24), the one end of horizontal pole (24) is equipped with operation panel (27), be equipped with cutting machine body (28) on operation panel (27), first motor (11) are just reversing motor.
2. The automatic circuit board feeding device according to claim 1, wherein a second limiting block (29) is disposed at an end of the first rotating shaft (10) away from the first motor (11).
3. The automatic feeding device of circuit board as claimed in claim 1, wherein a buffer spring (30) is provided between the first rotating shaft (10) and the second fixing block (5).
4. The automatic feeding device of circuit board according to claim 1, characterized in that the fifth connecting rod (16) and the first movable rod (18) and the second fixed plate (8) are connected by a first movable bolt (31).
5. The automatic feeding device of circuit board as claimed in claim 1, wherein the distance between the first stoppers (23) is larger than the width of the circuit board (26).
6. The automatic feeding device of circuit board as claimed in claim 1, wherein both ends of said first connecting rod (4) are connected to said first fixing block (3) and said second fixing block (5) by a second movable bolt, and both ends of said second connecting rod (6) are connected to said second fixing block (5) and said third fixing block (7) by a third movable bolt.
7. The automatic circuit board feeding device according to claim 1, wherein a base (32) is disposed on a side of the first fixing plate (2) away from the first fixing block (3), a third fixing plate (33) is disposed on a side of the base (32) away from the first fixing plate (2), a wheel frame (34) is disposed on an end of the third fixing plate (33) away from the base, a roller (35) is disposed in the wheel frame (34), and the roller (35) and the wheel frame (34) are connected through a wheel shaft (36).
8. The automatic feeding device of circuit board as claimed in claim 1, wherein a support frame (37) is provided at the bottom of the first motor (11), and the support frame (37) is fixed on the side wall of the frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929195.6A CN109015845B (en) | 2018-08-15 | 2018-08-15 | Automatic feeding device of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929195.6A CN109015845B (en) | 2018-08-15 | 2018-08-15 | Automatic feeding device of circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109015845A CN109015845A (en) | 2018-12-18 |
| CN109015845B true CN109015845B (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810929195.6A Active CN109015845B (en) | 2018-08-15 | 2018-08-15 | Automatic feeding device of circuit board |
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| CN (1) | CN109015845B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111941518A (en) * | 2020-08-13 | 2020-11-17 | 杭州临安三品电子有限公司 | PCB cutting machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2212089B (en) * | 1987-11-11 | 1992-01-08 | Serni Ltd | Devices for trimming the widths of conveyor belting |
| CN204183608U (en) * | 2014-10-31 | 2015-03-04 | 桂林电子科技大学 | Full-steel radial ply giant engineering machinery tyre cross-section cutting machine |
| CN105537322B (en) * | 2015-12-08 | 2017-07-21 | 臧汝涛 | A kind of fast-type automobile benchwork table |
| CN206351576U (en) * | 2016-11-24 | 2017-07-25 | 北京东方雨虹防水工程有限公司 | A kind of coiled material production is automatic to adjust thick device |
| CN207329729U (en) * | 2017-09-06 | 2018-05-08 | 东莞市威力固电路板设备有限公司 | A kind of circuit board automatic charging device |
| CN107825518A (en) * | 2017-11-08 | 2018-03-23 | 陈式好 | A kind of food board perforating device |
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