CN220662134U - Lug embossing mechanism - Google Patents
Lug embossing mechanism Download PDFInfo
- Publication number
- CN220662134U CN220662134U CN202321932027.5U CN202321932027U CN220662134U CN 220662134 U CN220662134 U CN 220662134U CN 202321932027 U CN202321932027 U CN 202321932027U CN 220662134 U CN220662134 U CN 220662134U
- Authority
- CN
- China
- Prior art keywords
- embossing
- pole piece
- roller
- lug
- assembly
- 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.)
- Active
Links
- 238000004049 embossing Methods 0.000 title claims abstract description 74
- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 239000003292 glue Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 abstract description 15
- 238000000576 coating method Methods 0.000 abstract description 15
- 238000005096 rolling process Methods 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000037303 wrinkles Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 101100354809 Caenorhabditis elegans pxl-1 gene Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000001125 extrusion 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
The utility model relates to a lug embossing mechanism which comprises a base, a roller assembly and an embossing assembly, wherein the embossing assembly and the roller assembly are arranged on the base, a pole piece moves between the roller assembly and the embossing assembly, the embossing assembly comprises an air cylinder, an installation seat and an embossing roller structure, the embossing roller structure is arranged on the installation seat, and the air cylinder drives the installation seat to move. According to the lug embossing mechanism, when the embossing wheel presses lines on the lug, the rubber wheel applies pressure to the lug coating area, so that rolling resistance of the embossing roller structure is uniformly applied to the lug area and the pole piece coating area, the resistance difference value born by the lug area and the pole piece coating area is reduced, meanwhile, as the diameters of the embossing wheel and the rubber wheel are the same, the lug area and the pole piece coating area have no displacement difference, the same stress of each section of the left side and the right side of a contact line of the pole piece and the embossing roller structure is ensured, and the problem that wrinkles are generated due to the fact that the displacement difference and the stress are uneven between the lug area and the pole piece is solved.
Description
Technical Field
The utility model relates to the technical field of lithium battery production, in particular to a lug embossing mechanism.
Background
The lug of the square lithium battery is cut into the lug by the pole piece base material, the negative pole base material is copper foil, the rigidity of the material is low, and the lug is easy to turn over and even damaged in the production process. The prior art of embossing (namely regular dent extrusion) is commonly used to improve the overall rigidity of the tab and enhance the anti-folding performance of the tab, as shown in fig. 1, 2 and 3, the prior art embossing structure comprises a base 100, a roller assembly 200 and an embossing assembly 300, wherein the embossing assembly 300 and the roller assembly 200 are arranged on the base 100, a pole piece moves between the roller assembly 200 and the embossing assembly 300, the embossing assembly 300 comprises an air cylinder 310, a mounting seat 320 and an embossing roller 330, the embossing roller 330 is arranged on the mounting seat 320, the air cylinder 310 drives the mounting seat 320 to move, the end surface of the embossing roller 330 needs to be kept at a certain distance from a coating area because the pole piece coating area cannot be pressed, and the embossing roller 330 only acts on the tab to bear force because the embossing roller 330 is driven by the pole piece, so that the rolling resistance of the embossing roller 330 only acts on the contact area with the pole piece, the rolling resistance direction is opposite to the advancing direction of the pole piece, and further the embossing imprint exists between the pole piece, the root of the tab is greatly reduced, and the failure results such as the tab root are easy to be folded.
Disclosure of Invention
The utility model mainly aims to provide a tab embossing mechanism which solves the technical problems and can avoid the occurrence of a wrinkle area of a tab.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a utmost point ear knurling mechanism, is including base, roller assembly and knurling subassembly, the knurling subassembly with the roller assembly install in on the base, the pole piece in roller assembly with remove between the knurling subassembly, the knurling subassembly is including cylinder, mount pad and knurling roller structure, knurling roller structure install in on the mount pad, the cylinder drive the mount pad removes.
As a preferable technical scheme, the embossing roller structure comprises an embossing roller and a rubber wheel, wherein the embossing roller and the rubber wheel are coaxially arranged, and the diameter of the embossing roller is the same as that of the rubber wheel.
As a preferred technical solution, the embossing assembly is further provided with a guiding structure, and the guiding structure is mounted on the base.
As a preferable technical scheme, the guide structure comprises a guide rod, a retainer and a guide sleeve, wherein the guide sleeve is fixedly arranged on the base, one end of the guide rod is fixedly arranged on the retainer, the other end of the guide rod is fixedly arranged on the mounting seat, and the guide rod penetrates through the guide sleeve.
As a preferable technical scheme, the roller assembly comprises a roller and a mounting shaft, wherein the roller is mounted on the mounting shaft, and the mounting shaft is rotatably arranged on the base.
The utility model has the beneficial effects that: above-mentioned utmost point ear knurling mechanism, this knurling roller structure is provided with knurling wheel and rubber tyre, knurling wheel and regional contact of utmost point ear, rubber tyre and regional contact of pole piece coating, when knurling wheel is to the utmost point ear suppression line, the rubber tyre is exerted pressure to the pole piece coating region, make the rolling resistance of knurling roller structure evenly apply on utmost point ear region and pole piece coating region, reduce the resistance difference that utmost point ear region and pole piece coating region received, simultaneously because the diameter of knurling wheel and rubber tyre is the same, utmost point ear region and pole piece coating region do not have the displacement difference, guarantee that pole piece and knurling roller structure contact line each section atress is the same about both sides, and then eliminate because of the problem of displacement difference and atress inhomogeneous production fold between utmost point ear region and the pole piece.
Drawings
FIG. 1 is a schematic diagram of an embossing structure according to the background art of the present utility model;
FIG. 2 is a schematic diagram of an embossed pole piece according to the background art of the utility model;
FIG. 3 is a schematic view of a tab embossing mechanism according to the present utility model;
FIG. 4 is a schematic structural view of an embossing roller structure in accordance with the present utility model;
fig. 5 is a schematic structural view of the embossed pole piece according to the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. 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 utility model.
As shown in FIG. 3, the lug embossing mechanism comprises a base 1, a roller assembly 2 and an embossing assembly 3, wherein the embossing assembly 3 and the roller assembly 2 are arranged on the base 1, a pole piece a moves between the roller assembly 2 and the embossing assembly 3, the embossing assembly 3 can press lines on a lug, the overall rigidity of the lug is improved, and the folding resistance of the lug is enhanced.
Specifically, the roller assembly 2 includes a roller 21 and a mounting shaft 22, the roller 21 is mounted on the mounting shaft 22, the mounting shaft 22 is rotatably disposed on the base 1, and the roller 22 is used for supporting the pole piece so that the embossing assembly 3 presses the lines on the pole lugs.
As shown in fig. 3 and 4, the embossing assembly 3 includes an air cylinder 31, a mounting seat 32, an embossing roller structure 33 and a guiding structure 34, the embossing roller structure 33 and the guiding structure 34 are mounted on the mounting seat 32, the air cylinder 31 drives the mounting seat 32 to move, the embossing roller structure 33 contacts with the pole piece a, the guiding structure 34 is used for guiding the mounting seat 32 to move, the embossing roller structure 33 includes an embossing roller 331 and a rubber wheel 332, the embossing roller 331 and the rubber wheel 332 are coaxially arranged, the diameters of the embossing roller 331 and the rubber wheel 332 are the same, the pressure of the embossing roller 331 in the unit length of the pole lug is the same as the pressure of the rubber wheel 332 in the unit length of the pole piece, the guiding structure 34 includes a guiding rod 342, a retainer 341 and a guiding sleeve 343, the guiding sleeve 343 is fixedly arranged on the base 1, one end of the guiding rod 342 is fixedly arranged on the retainer 341, the other end of the guiding rod 342 is fixedly arranged on the mounting seat 32, and the guiding rod 342 is arranged in the guiding sleeve 343 in a penetrating manner.
The present utility model also relates to another scheme, as shown in fig. 3, fig. 4 and fig. 5, a design method of the tab embossing mechanism, which includes:
the cylinder 31 drives the mounting seat 32 to move, drives the embossing roller structure 33 to be pressed on the pole piece a, the pole piece a is driven between the embossing roller structure 33 and the roller 21, the tension on the pole piece is evenly distributed along the contact line of the pole piece and the embossing roller structure 33, the pole piece is equally divided into 5 sections along the contact line in unit length, the tension from the pole lug to the pole piece direction in the right side of the contact line is sequentially f1, f2, f3, f4 and f5, the tension from the pole lug to the pole piece direction in the left side of the contact line is sequentially f '1, f '2, f '3, f '4 and f '5, the resistance of the embossing roller structure 33 to the pole piece is sequentially f '1, f '2, f '3 and f '5 from the pole lug to the pole piece direction, and the right side tension of the contact line of the pole piece and the embossing roller structure 33 is equal to the total stress sum of the left side of the contact line and the embossing roller structure 33, namely the following relation formula is satisfied:
f1＝f”1+f’1
f2＝f”2+f’2
f3＝f”3+f’3
f4＝f”4+f’4
f5＝f”5+f’5
when f1=f2=f3=f4=f5, there is f1=f2=f3=f4=f5, and the stress of the sections on the same side of the pole piece is the same;
the rolling resistance per unit length of the embossing wheel 331 and the tab area is F1, and F1 satisfies the following relation:
f1 =f' 1 type 1
The embossing roller 331 applies a pressure P1 to the tab area, and P1 satisfies the following relationship:
p1=pxl1/(l1+l2) 2
The total friction resistance F '1, F'1 of the embossing wheel 331 with the tab area satisfies the following relationship:
f1=p1×μ1=p× μ1×l1/(l1+l2) formula 3
The following formulas can be obtained by combining formula 1, formula 2 and formula 3:
f1 =f1/l1=p×μ1/(l1+l2) 4
The length of the contact area between the embossing wheel 331 and the tab area is L1, the rolling friction coefficient is mu 1, and the pressure provided by the air cylinder is P;
the contact area of the glue wheel 332 and the pole piece coating area has a resistance per unit length of F2, and F2 satisfies the following relation:
f2 =f2=f3=f4=f' 5 formula 5
The pressure applied by the glue wheel 332 and the pole piece coating area is P2, and P2 satisfies the following relationship:
p2=pxl2/(l1+l2) 6
The total friction drag force F '2, F'2 of the glue wheel 332 with the pole piece coated area satisfies the following relationship:
f2=p2×μ2=p× μ2×l2/(l1+l2) 7
Combining formula 5, formula 6 and formula 7, the following formula can be obtained:
f2 =f2/l2=p×μ2/(l1+l2) 8
Wherein, the contact area length of the rubber wheel 332 and the pole piece coating area is L2, the rolling friction coefficient is mu 2, and the pressure provided by the air cylinder is P.
As can be seen from the combination of equations 4 and 8, when μ1=μ2, the resistance F1 of the contact area between the embossing roller 331 and the tab area is equal to the resistance F2 of the contact area between the glue roller 332 and the pole piece coating area, i.e. the resistance force of each section of the pole piece is the same, and the forces of each section of the contact line between the pole piece and the embossing roller structure 33 are the same, so as to eliminate the problem of wrinkles caused by the relative displacement due to uneven forces of each section of the contact line.
The above embodiments are only preferred examples of the present utility model and are not intended to limit the scope of the present utility model, so that all equivalent changes or modifications of the structure, characteristics and principles described in the claims are included in the scope of the present utility model.
Claims (5)
1. The utility model provides a utmost point ear knurling mechanism, its characterized in that, including base, cylinder subassembly and knurling subassembly, the knurling subassembly with the cylinder subassembly install in on the base, the pole piece in the cylinder subassembly with remove between the knurling subassembly, the knurling subassembly is including cylinder, mount pad and knurling roller structure, knurling roller structure install in on the mount pad, the cylinder drive the mount pad removes.
2. The tab embossing mechanism of claim 1 wherein the embossing roller structure comprises an embossing wheel and a glue wheel, the embossing wheel and the glue wheel are coaxially arranged, and the embossing wheel and the glue wheel have the same diameter.
3. The tab embossing mechanism of claim 2, wherein the embossing assembly is further provided with a guide structure mounted to the base.
4. The tab embossing mechanism of claim 3, wherein the guide structure comprises a guide rod, a retainer and a guide sleeve, the guide sleeve is fixedly arranged on the base, one end of the guide rod is fixedly arranged on the retainer, the other end of the guide rod is fixedly arranged on the mounting seat, and the guide rod penetrates through the guide sleeve.
5. The tab embossing mechanism of claim 4, wherein the roller assembly comprises a roller and a mounting shaft, the roller being mounted on the mounting shaft, the mounting shaft being rotatably disposed on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321932027.5U CN220662134U (en) | 2023-07-20 | 2023-07-20 | Lug embossing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321932027.5U CN220662134U (en) | 2023-07-20 | 2023-07-20 | Lug embossing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220662134U true CN220662134U (en) | 2024-03-26 |
Family
ID=90336067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321932027.5U Active CN220662134U (en) | 2023-07-20 | 2023-07-20 | Lug embossing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220662134U (en) |
-
2023
- 2023-07-20 CN CN202321932027.5U patent/CN220662134U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |