CN114394459A - Lithium ion battery detects mark device with cutting flaw - Google Patents
Lithium ion battery detects mark device with cutting flaw Download PDFInfo
- Publication number
- CN114394459A CN114394459A CN202111581551.8A CN202111581551A CN114394459A CN 114394459 A CN114394459 A CN 114394459A CN 202111581551 A CN202111581551 A CN 202111581551A CN 114394459 A CN114394459 A CN 114394459A
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- Prior art keywords
- slitting
- marking
- cutting
- lithium ion
- ion battery
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Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 93
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 80
- 238000004804 winding Methods 0.000 claims description 31
- 230000000007 visual effect Effects 0.000 claims description 18
- 230000006978 adaptation Effects 0.000 claims description 11
- 230000007547 defect Effects 0.000 claims description 8
- 238000003860 storage Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 15
- 238000010009 beating Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000002950 deficient Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 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
- 238000003908 quality control method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/02—Supporting web roll
- B65H18/021—Multiple web roll supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/26—Devices for applying labels
- B65C9/30—Rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/26—Devices for applying labels
- B65C9/36—Wipers; Pressers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/40—Controls; Safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H16/00—Unwinding, paying-out webs
- B65H16/02—Supporting web roll
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/26—Cutting-off the web running to the wound web roll
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
A cutting flaw detection marking device for a lithium ion battery comprises a cutting marking device and an unreeling device, wherein the unreeling device is connected with the cutting marking device, the cutting marking device comprises a pre-cutting detection component, a sub-cutting knife group, a post-cutting detection component, a marking device and a reeling device, the pre-cutting detection component is arranged at the front end of the sub-cutting knife group, the post-cutting detection component is arranged at the rear end of the sub-cutting knife group, the marking device is connected with the pre-cutting detection component and the post-cutting detection component, each reeling device is suitable for being provided with a post-cutting detection component, the pre-cutting detection component is used for detecting flaws on the surface of a pole piece, the flaw is counted and photographed for storage, follow-up flaw to the electrode plate is convenient for inquire, and the detection assembly is used for detecting the flaw of the electrode plate after cutting, and is used for controlling the marking device to mark the cut electrode plate.
Description
Technical Field
The invention belongs to the technical field of battery slitting devices, and particularly relates to a slitting flaw detection marking device for a lithium ion battery.
Background
New energy automobiles rapidly develop in recent years, and the market growth is rapid. As a core layout of a new energy automobile, a lithium ion power battery is rapidly developed. Meanwhile, the market continuously puts higher requirements on the aspects of energy density, service life, safety and the like of the lithium ion battery. Therefore, the battery factory must pay more attention to the quality and cost of the production process, and strive to improve the quality and consistency of the product and reduce the production cost. The manufacturing of the lithium ion battery pole piece is a key process in the production of the battery, and specifically comprises the steps of slurry preparation, pole piece coating and drying, pole piece rolling and compacting, and pole piece cutting and trimming.
At present, in the preparation process of battery pole pieces, more and more on-line detection technologies are adopted, so that the manufacturing defects of products are effectively identified, defective products are eliminated, the defective products are timely fed back to a production line, the production process is automatically or manually adjusted, and the reject ratio of the production line is reduced.
The speed requirement on the lithium battery equipment at the front, middle and rear sections is higher and higher, and the general production speed of the high-speed rolling and slitting integrated machine and the high-speed slitting machine is 60-100m/min, so that higher requirements on flaw detection and quality control of pole pieces in the production process are provided. The surface defects of the pole pieces are detected in time by CCD vision, namely, a detected object is scanned by a linear array CCD, the image is processed in real time and the defect types are analyzed, so that the nondestructive online detection of the surface defects of the pole pieces is realized, the areas of the defective pole pieces are marked, the modes of labeling, code spraying and the like are generally adopted, but the marking precision of the marking mode is poor, the problems of label leakage, label flying and the like are easy to occur, and the defective pole pieces are missed or over killed.
Disclosure of Invention
In view of the above disadvantages, the technical problem to be solved by the present invention is to provide a slitting flaw detection marking device for a lithium ion battery, which can detect and mark the flaw in real time according to the size and type of the flaw.
In order to solve the technical problems, the invention adopts the technical scheme that,
the utility model provides a lithium ion battery is with cutting flaw detection and beats mark device, beat mark device and unwinding device including cutting, unwinding device with cut and beat the mark device and be connected, it beats the mark device including cutting preceding determine module to cut, divide cutter unit, cut back determine module, beat mark device and coiling mechanism, it lays in branch cutter unit front end to cut preceding determine module, it lays in branch cutter unit rear end to cut back determine module, beat mark device with cut preceding determine module, cut back determine module and be connected, every coiling mechanism is adapted to have one to cut back determine module.
Furthermore, the detection assembly before slitting comprises a front detection piece and a back detection piece, wherein the front detection piece and the back detection piece are respectively arranged at the front ends of the slitting cutter groups and respectively detect the front side and the back side of the coil stock.
Furthermore, the front detection piece and the back detection piece respectively comprise a front end detection roller and a visual detection lens, and the visual detection lens is arranged towards the front end detection roller.
Furthermore, cut back detection assembly and include rear end detection roller and rear end vision detection camera lens, rear end vision detection camera lens is laid towards the rear end detection roller.
Further, divide the cutter group including dividing the cutter frame, dividing the cutter, cutting front end guide roll and cutting rear end guide roll, divide the cutter to install on dividing the cutter frame, cut front end guide roll, cut the rear end guide roll and install respectively in the both sides of dividing the cutter.
Further, beat and beat the mark subassembly including beating mark cylinder and two at least mark subassemblies in the mark device, beat the mark subassembly and beat mark cylinder adaptation, beat the mark subassembly including beat the mark seat, beat the mark arm and go out the mark head, go out to mark the head adjustable installation on beating the mark seat, beat the mark arm and rotate and install on beating the mark seat, and with go out mark head adaptation.
Furthermore, mark and rotate on the seat and install label play spool, label rolling axle, label guide roll, be connected with label paper on the label play spool, label paper passes through the label guide roll around establishing to a mark head on, rethread label guide roll is connected with the label rolling axle.
Further, beat the mark arm including beating mark guide roll, linking arm and pasting the mark wheel, beat the mark guide roll and install on beating the mark seat, the center of rotation of linking arm is unanimous with the center of rotation of beating the mark guide roll, pastes the mark wheel and rotates and install the opposite side tip at the linking arm, and with play mark head adaptation, goes out mark head and beats the tangent setting of mark guide roll.
Further, the coiling mechanism includes rolling subassembly and rolling cutting member, and the rolling subassembly includes rolling mounting bracket and a plurality of rolling cylinder, and the rolling cylinder is installed on the rolling mounting bracket, and the rolling cutting member includes cutting arm and cutting head, and the cutting head is installed on cutting arm, cutting head and rolling cylinder adaptation.
Further, cut off the head including cutting off the mounting panel, trade a roll pinch roller, cutting off the sword and cut off the cylinder, cut off mounting panel fixed mounting on cutting off the arm, trade a roll pinch roller rotate install on cutting off the mounting panel, and with the rolling cylinder adaptation, cut off cylinder fixed mounting on cutting off the mounting panel, the cutting off sword is installed on cutting off the cylinder.
The detection assembly before cutting is used for detecting the flaws on the surface of the electrode plate, counting the flaws, taking pictures for storage, and facilitating follow-up inquiry of the flaws of the electrode plate, and the detection assembly after cutting is used for detecting the flaws of the electrode plate after cutting and controlling the marking device to mark the cut electrode plate.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the cutting knife group.
Fig. 3 is a schematic structural view of the marking device.
Fig. 4 is a schematic structural view of a roll cut.
Fig. 5 is a working principle diagram of the present invention.
Reference numerals: the label cutting and marking device comprises a slitting and marking device 1, an unreeling device 2, a slitting cutter group 3, a marking device 4, a reeling device 5, a front detection piece 6, a back detection piece 7, a front detection roller 8, a visual detection lens 9, a back detection roller 10, a back visual detection lens 11, a slitting cutter frame 12, a slitting cutter 13, a slitting front guide roller 14, a slitting back guide roller 15, a marking roller 16, a marking seat 17, a marking arm 18, a marking head 19, a label outgoing scroll 20, a label rolling scroll 21, a label guide roller 22, label paper 23, a marking guide roller 24, a connecting arm 25, a labeling wheel 26, a reeling component 27, a reeling cutting piece 28, a reeling mounting frame 29, a reeling roller 30, a cutting arm 31, a cutting head 32, a cutting support plate 33, a reel changing roller wheel 34, a cutting knife 35 and a cutting cylinder 36.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A lithium ion battery is with cutting flaw detection and marking device, including cutting marking device 1 and unwinding device 2, unwinding device 2 is connected with cutting marking device 1, cut marking device 1 includes detecting element before cutting, divide cutter group 3, detect element after cutting, mark device 4 and coiling mechanism 5, detect element distribute in divide cutter group 3 front end before cutting, detect element distribute in divide cutter group 3 rear end after cutting, mark device 4 and cut before detecting element, detect element after cutting connect, every coiling mechanism 5 is adapted to have one after cutting to detect the element, detect element before cutting is used for detecting the surface flaw of the pole piece, the flaw is counted and photographed for storage, follow-up flaw to the electrode plate is convenient for inquire, and the detection assembly is used for detecting the flaw of the electrode plate after cutting, and is used for controlling the marking device 4 to mark the cut electrode plate.
Beat and beat the mark subassembly including beating in the mark device 4 mark subassembly 16 and two at least, beat the mark subassembly and beat the adaptation of mark cylinder 16, support through beating mark cylinder 16 and beat mark paper, guarantee to beat the mark subassembly and can stabilize, the efficient will beat the laminating of mark paper on the pole piece surface to through setting up a plurality of mark subassemblies of beating, guarantee that the flaw mark does not receive equipment to beat mark speed and flaw size restriction, thereby realized improving pole piece and cut quality and yield.
Beat the mark subassembly and include and beat mark seat 17, beat mark arm 18 and go out mark head 19, go out to mark 19 adjustable installations on beating mark seat 17, beat mark arm 18 and rotate to install on beating mark seat 17, and with go out 19 adaptations of mark head, through going out mark head 19 with beat mark on the marking paper with beat the mark paper separation, the rethread beats mark arm 18 and will mark the laminating to the electrode slice surface, guarantee to beat mark stability.
The marking seat 17 is rotatably provided with a label outlet scroll 20, a label winding shaft 21 and a label guide roller 22, the label outlet scroll 20 is connected with label paper 23, the label paper 23 is wound on the label outlet scroll 19 through the label guide roller 22, and then is connected with the label winding shaft 21 through the label guide roller 22.
The detection assembly comprises a front detection piece 6 and a back detection piece 7 before slitting, the front detection piece 6 and the back detection piece 7 are respectively arranged at the front end of the slitting cutter set 3 and respectively detect the front side and the back side of a coil stock, surface flaws of the front side and the back side of an electrode plate are conveniently detected and subjected to alarm processing, the surface flaws comprise surface foil leakage, decarburization, white spots, bubbles and the like, and the front detection piece 6 and the back detection piece 7 can simultaneously measure the total width of the electrode plate before slitting the front side and the back side of the electrode plate.
The cut rear detection assembly comprises a rear detection roller 10 and a rear visual detection lens 11, the rear visual detection lens 11 is arranged towards the rear detection roller 10, similarly, the rear visual detection lens 11 is guaranteed to be always focused on the surface of the electrode slice after cutting through the arrangement of the rear detection roller 10, the detection precision is improved, and similarly, the rear visual detection lens 11 is a CCD visual detection lens.
The slitting knife group 3 comprises a slitting knife rest 12, a slitting knife 13, a slitting front-end guide roller 14 and a slitting rear-end guide roller 15, the slitting knife 13 is installed on the slitting knife rest 12, the slitting front-end guide roller 14 and the slitting rear-end guide roller 15 are respectively installed on two sides of the slitting knife 13, and electrode plates are slit through the slitting knife.
The winding device 5 comprises a winding assembly 27 and a winding cutting part 28, the winding assembly 27 comprises a winding mounting frame 29 and a plurality of winding rollers 30, the winding rollers 30 used for winding electrode plates are replaced by rotating the winding mounting frame 29, the winding rollers 30 are mounted on the winding mounting frame 29, the winding cutting part 28 comprises a cutting arm 31 and a cutting head 32, the cutting head 32 is mounted on the cutting arm 31, the cutting head 32 is matched with the winding rollers 30, the winding cutting part 28 is arranged, the cutting of the cut electrode plates completed by winding is convenient, and therefore the winding rollers 30 are convenient to replace.
The cutting head 32 comprises a cutting support plate 33, a roll changing roller wheel 34, a cutting knife 35 and a cutting cylinder 36, the cutting support plate 33 is fixedly installed on the cutting arm 31, the roll changing roller wheel 34 is rotatably installed on the cutting support plate 33 and is matched with the winding roller 30, the cutting cylinder 36 is fixedly installed on the cutting support plate 33, the cutting knife 35 is installed on the cutting cylinder 36, the wound electrode sheet is pressed on the winding roller 30 through the roll changing roller wheel 34, the cutting knife 35 is driven by the cutting cylinder 36 to cut off the electrode sheet, and the winding roller 30 is conveniently and automatically replaced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the terms corresponding to the reference numerals in the figures are used more herein, the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a lithium ion battery is with cutting flaw detection and beats mark device, a serial communication port, beat mark device (1) and unwinding device (2) including cutting, unwinding device (2) with cut and beat mark device (1) and be connected, cut and beat mark device (1) including cutting preceding determine module, divide cutter group (3), cut back determine module, beat mark device (4) and coiling mechanism (5), the determine module is laid in branch cutter group (3) front end before cutting, divide back determine module and lay in branch cutter group (3) rear end, beat mark device (4) and cut preceding determine module, cut back determine module and be connected, every coiling mechanism (5) adaptation has one to cut back determine module.
2. The lithium ion battery slitting defect detecting and marking device according to claim 1, wherein the detecting assembly before slitting comprises a front detecting piece (6) and a back detecting piece (7), and the front detecting piece (6) and the back detecting piece (7) are respectively arranged at the front ends of the slitting knife groups (3) to respectively detect the front and the back of a coil stock.
3. The lithium ion battery slitting defect detecting and marking device as claimed in claim 3, wherein the front side detecting piece (6) and the back side detecting piece (7) each comprise a front end detecting roller (8) and a visual detecting lens (9), and the visual detecting lenses (9) are arranged towards the front end detecting rollers (8).
4. The lithium ion battery slitting flaw detection marking device as claimed in claim 1, wherein the post-slitting detection assembly comprises a rear end detection roller (10) and a rear end visual detection lens (11), and the rear end visual detection lens (11) is arranged towards the rear end detection roller (10).
5. The lithium ion battery slitting flaw detection marking device as claimed in claim 1, wherein the slitting knife group (3) comprises a slitting knife rest (12), a slitting knife (13), a slitting front end guide roller (14) and a slitting rear end guide roller (15), the slitting knife (13) is mounted on the slitting knife rest (12), and the slitting front end guide roller (14) and the slitting rear end guide roller (15) are respectively mounted on two sides of the slitting knife (13).
6. The lithium ion battery is with cutting flaw detection marking device of claim 1, characterized in that, including marking cylinder (16) and at least two marking subassemblies in marking device (4), marking subassembly and marking cylinder (16) adaptation, marking subassembly is including marking seat (17), marking arm (18) and marking head (19) of going out, goes out that marking head (19) is adjustable to be installed on marking seat (17), marks arm (18) and rotates to be installed on marking seat (17), and with go out marking head (19) adaptation.
7. The lithium ion battery slitting defect detecting and marking device according to claim 6, wherein a label outlet reel (20), a label take-up reel (21) and a label guide roller (22) are rotatably mounted on the marking seat (17), label paper (23) is connected to the label outlet reel (20), the label paper (23) is wound on the label outlet reel (19) through the label guide roller (22), and then is connected with the label take-up reel (21) through the label guide roller (22).
8. The lithium ion battery slitting defect detecting and marking device according to claim 6, wherein the marking arm (18) comprises a marking guide roller (24), a connecting arm (25) and a marking wheel (26), the marking guide roller (24) is installed on the marking seat (17), the rotation center of the connecting arm (25) is consistent with the rotation center of the marking guide roller (24), the marking wheel (26) is rotatably installed at the end part of the other side of the connecting arm (25) and matched with the marking head (19), and the marking head (19) and the marking guide roller (24) are arranged in a tangent mode.
9. The lithium ion battery slitting flaw detection marking device as claimed in claim 1, wherein the winding device (5) comprises a winding assembly (27) and a winding cut-off member (28), the winding assembly (27) comprises a winding mounting frame (29) and a plurality of winding rollers (30), the winding rollers (30) are mounted on the winding mounting frame (29), the winding cut-off member (28) comprises a cutting arm (31) and a cutting head (32), the cutting head (32) is mounted on the cutting arm (31), and the cutting head (32) is adapted to the winding rollers (30).
10. The lithium ion battery slitting flaw detection marking device as claimed in claim 9, wherein the slitting head (32) comprises a slitting support plate (33), a rewinding roller wheel (34), a slitting cutter (35) and a slitting cylinder (36), the slitting support plate (33) is fixedly mounted on the slitting arm (31), the rewinding roller wheel (34) is rotatably mounted on the slitting support plate (33) and is adapted to the rewinding roller (30), the slitting cylinder (36) is fixedly mounted on the slitting support plate (33), and the slitting cutter (35) is mounted on the slitting cylinder (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581551.8A CN114394459A (en) | 2021-12-22 | 2021-12-22 | Lithium ion battery detects mark device with cutting flaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581551.8A CN114394459A (en) | 2021-12-22 | 2021-12-22 | Lithium ion battery detects mark device with cutting flaw |
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| CN114394459A true CN114394459A (en) | 2022-04-26 |
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| CN202111581551.8A Pending CN114394459A (en) | 2021-12-22 | 2021-12-22 | Lithium ion battery detects mark device with cutting flaw |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385167A (en) * | 2022-09-29 | 2022-11-25 | 广州市易鸿智能装备有限公司 | System and method for intelligently matching materials with lithium battery |
| CN116462039A (en) * | 2023-03-21 | 2023-07-21 | 上海福赛特机器人股份有限公司 | Copper foil cutting machine |
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| CN116462039A (en) * | 2023-03-21 | 2023-07-21 | 上海福赛特机器人股份有限公司 | Copper foil cutting machine |
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