CN115384048A - Flexible rolling device suitable for square shell lithium battery coating machine - Google Patents
Flexible rolling device suitable for square shell lithium battery coating machine Download PDFInfo
- Publication number
- CN115384048A CN115384048A CN202210979122.4A CN202210979122A CN115384048A CN 115384048 A CN115384048 A CN 115384048A CN 202210979122 A CN202210979122 A CN 202210979122A CN 115384048 A CN115384048 A CN 115384048A
- Authority
- CN
- China
- Prior art keywords
- roller
- sealing cover
- coating machine
- rolling device
- nylon net
- 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.)
- Pending
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000011248 coating agent Substances 0.000 title claims abstract description 12
- 238000000576 coating method Methods 0.000 title claims abstract description 12
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 12
- 238000005096 rolling process Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000004677 Nylon Substances 0.000 claims abstract description 17
- 229920001778 nylon Polymers 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000741 silica gel Substances 0.000 claims abstract description 7
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 7
- 238000005187 foaming Methods 0.000 claims abstract 3
- 239000010410 layer Substances 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 5
- 239000007888 film coating Substances 0.000 claims description 4
- 238000009501 film coating Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract description 3
- 239000011258 core-shell material Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000010073 coating (rubber) Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
- B29C2063/027—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material applied by a squeegee
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a flexible rolling device suitable for a square-shell lithium battery coating machine. According to the flexible rolling device of the square-shell lithium battery coating machine, the two ends of the roller are sealed in a concave shape, the surface of the rigid roller is coated with the elastic lining, the lining is flush with the concave-shaped sealing covers, the modified nylon net is stretched between the sealing covers at the two ends, and the outer layer of the nylon net is coated with the silica gel foaming layer. Through the mechanism form of flexible roller itself, realize the inseparable laminating of electric core shell with flexible roller, the atress is even, makes the laminating that flexible silica gel foaming layer can be inseparable on the diolame battery, and abundant extrusion blue membrane and battery aluminum hull roll the pressure discharge with the gas between the two, finally realize that the battery diolame does not have bubble, does not have the fold.
Description
Technical Field
The invention relates to the technical field of lithium battery coating, in particular to a flexible rolling device of a coating machine for a square-shell lithium battery.
Background
The outer surface of the battery is usually wrapped with a layer of protective film, and the protective film can protect the battery on one hand and make the appearance of the battery more beautiful on the other hand.
The protective film is generally used before the battery Pack, and mainly plays a role in insulation protection. The electrolyte is also coated on the surface of the battery core before the battery core is dried, and the main function is to protect the surface of the battery core from being scratched and corroded by electrolyte, which is an indispensable part in the battery production process.
At present, the battery coating is mostly finished by automation equipment and manpower together, and in the face of increasing market demands, a full-automatic coating machine becomes a trend. Simultaneously also more and more high to the diolame quality requirement, the diolame compression roller that uses on the coating machine on the market at present mostly is the rubber compression roller, has the rubber layer for the surface cladding of roll body, and both ends are connected with solid spindle nose, lean on the pressure between the two rollers during the diolame totally, because rubber layer deformation range is limited, deformation is inhomogeneous, very easily cause the big face of square shell lithium cell, the side, the bottom surface is difficult to accomplish completely horizontally, consequently bubble, fold scheduling problem appear in the diolame process, seriously influence the product quality.
Disclosure of Invention
The invention aims to overcome the defects of the existing rubber compression roller and provide a flexible rolling device which has large elasticity amplitude and uniform deformation and is suitable for a square-shell lithium battery coating machine.
In order to achieve the purpose, the invention discloses a flexible rolling device suitable for a film coating machine of a square-shell lithium battery, which adopts the following technical scheme: the shaft heads 3 and the sealing covers 6 at two ends of the roller form a cavity 8. The axial cross section of the sealing cover 6 is concave, the diameter of the sealing cover 6 and the outer diameter of the roller 5 just meet, and the sealing cover and the roller are tightly attached and sealed and welded. The center of one end of the shaft heads 3 at two ends, which is positioned outside the roller, is provided with an annular boss 4, the sealing cover 6 is in a concave annular shape, the diameter of the sealing cover just meets the requirement of being sleeved on the shaft heads and limited on the boss 4, the shaft heads and the boss are hermetically welded, one end of the two shaft heads 3, which extends into the roller, is provided with a central boss 10, the end cover 7 is in an annular shape, the outer diameter of the end cover is the same as the diameter of the inner wall of the roller, and the inner diameter of the end cover just meets the requirement of being sleeved on the central boss 10 and is welded on the central boss 10; the elastic lining 9 is stuck on the outer surface of the roller, and the thickness of the elastic lining is consistent with the height of the concave edge of the sealing cover 6. The modified nylon net 1 surrounds the concave outer edges of the elastic lining 9 and the sealing cover 5, a certain pulling force is applied to two ends of the modified nylon net, and the modified nylon net is welded on the sealing cover through a baking gun. The modified nylon net 1 is coated with a rubber coating layer 2 which is made of foamed silica gel.
According to the invention, the tight fit between the battery cell shell and the flexible roller is realized through the mechanism form of the flexible roller, and the stress is uniform. Even if the position of the hollow roller body is not changed, the pressure of the flexible compression roller and the pressure of the battery cell shell can be finely adjusted to be uniform and moderate, and the requirement of uniform and proper rolling in the film coating process is met.
The outer diameters of the shaft heads at the two ends of the roller are the same as the inner diameters of the end covers, so that the roller is tightly attached, is convenient to weld, is not easy to deform, and has higher mechanical strength.
The outer end of the shaft head is provided with an annular boss, the sealing cover is connected with the annular boss, and the annular boss is arranged to increase the contact area between the sealing cover and the shaft head, so that the sealing cover and the shaft head are fixedly connected conveniently.
The inner end of the shaft head is provided with a central boss, the end cover and the concave part central boss are arranged, and the central boss is arranged to increase the contact area between the end cover and the shaft head, so that the end cover can be conveniently fixed on the shaft head.
The elastic lining is made of high-density sponge elastic lining, so that elasticity of the lining is guaranteed, certain flexibility can be guaranteed, and the thickness of the lining is consistent with the height of the concave protruding end of the end cover.
The modified nylon net is made of toughened nylon, has high toughness and provides certain strength support for the rubber coating layer of the roller.
The rubber coating layer on the outer surface of the roller is made of a foamed silica gel material, the texture is soft, and the laminating performance is good.
According to the invention, through the structure of the roller, the flexible rubber layer can be tightly attached to the coated battery under the condition of not changing the position of the flexible compression roller, the blue film and the battery aluminum shell are fully extruded, gas between the blue film and the battery aluminum shell is pushed and rolled and discharged, and finally, the bubble-free and wrinkle-free coating of the battery is realized.
The invention relates to a flexible compression roller which can adjust the pressure between a rubber compression roller and a battery cell shell without changing the position of a roller body. Thereby avoid the diolame that battery surface unevenness caused to appear a large amount of bubbles, fold, realize the inseparable combination with the battery surface through the outer flexible construction of compression roller itself, the atress is even when guaranteeing the battery case pad pasting.
Drawings
FIG. 1 is a schematic overall view of a flexible press roll of the present invention;
FIG. 2 is a sectional view of the construction of a flexible press roll according to the present invention.
Detailed Description
The essential features of the invention will be further described in conjunction with the drawings and the detailed description of the invention.
As shown in FIGS. 1-2, the present invention includes a roll, wherein the roll 5 is a stainless steel tube having a thickness of 3 mm. The shaft heads 3 and the sealing covers 6 at two ends of the roller form a cavity 8. The axial cross section of the sealing cover 6 is concave, the diameter of the sealing cover 6 and the outer diameter of the roller 5 just meet the requirement, and the sealing cover and the roller are tightly attached and sealed and welded. The center of one end of the shaft heads 3 at two ends, which is positioned outside the roller, is provided with an annular boss 4, the sealing cover 6 is in a concave annular shape, the diameter of the sealing cover just meets the requirement of being sleeved on the shaft heads and limited on the boss 4, the shaft heads and the boss are hermetically welded, one end of the two shaft heads 3, which extends into the roller, is provided with a central boss 10, the end cover 7 is in an annular shape, the outer diameter of the end cover is the same as the diameter of the inner wall of the roller, and the inner diameter of the end cover just meets the requirement of being sleeved on the central boss 10 and is welded on the central boss 10; the elastic lining 9 is stuck on the outer surface of the roller, and the thickness of the elastic lining is consistent with the height of the concave edge of the sealing cover 6. The modified nylon net 1 surrounds the concave outer edges of the elastic lining 9 and the sealing cover 5, a certain pulling force is applied to two ends of the modified nylon net, and the modified nylon net is welded on the sealing cover through a baking gun. The modified nylon net 1 is coated with a rubber coating layer 2 which is made of foamed silica gel.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A flexible rolling device suitable for a square-shell lithium battery coating machine is characterized by comprising a roller, wherein a shaft head (3) and a sealing cover (8) which are arranged at two ends of the roller form a cavity (8), the axial section of the sealing cover (6) is in a concave shape, and the sealing cover and the roller are tightly attached and hermetically welded; the center of one end, positioned outside the roller, of the shaft heads (3) at two ends is provided with an annular boss (4), a sealing cover is limited on the inner side of the annular boss (4) of the shaft heads, the sealing cover is hermetically welded with the annular boss, one end, extending into the roller, of the shaft heads (3) is provided with a central boss (10), an end cover (7) is annular, the outer diameter of the end cover is the same as the diameter of the inner wall of the roller, the inner diameter of the end cover is just sleeved on the central boss, and the end cover is welded on the central boss; the outer surface of the elastic lining (10) is provided with a layer of modified nylon net (1) in a tensioning mode, and the surface of the modified nylon net (1) is coated with a layer of silica gel foaming layer (2).
2. The flexible rolling device suitable for the film coating machine of the square-shell lithium battery as claimed in claim 1, wherein the modified nylon net (1) is encircled on the concave-shaped outer edges of the elastic lining (9) and the sealing cover (5), a certain pulling force is applied to two ends of the modified nylon net, and the modified nylon net is welded on the sealing cover through a baking gun.
3. The flexible rolling device suitable for the film coating machine of the square-shell lithium battery as claimed in claim 2, wherein the material of the coating layer (2) is foamed silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210979122.4A CN115384048A (en) | 2022-08-16 | 2022-08-16 | Flexible rolling device suitable for square shell lithium battery coating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210979122.4A CN115384048A (en) | 2022-08-16 | 2022-08-16 | Flexible rolling device suitable for square shell lithium battery coating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115384048A true CN115384048A (en) | 2022-11-25 |
Family
ID=84119954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210979122.4A Pending CN115384048A (en) | 2022-08-16 | 2022-08-16 | Flexible rolling device suitable for square shell lithium battery coating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115384048A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1092112A (en) * | 1954-01-29 | 1955-04-19 | Turner Ag Maschf | Clamping cylinder for leather smoothing machines |
| US4756065A (en) * | 1987-01-27 | 1988-07-12 | American Roller Company | Paster roller |
| US6393247B1 (en) * | 2000-10-04 | 2002-05-21 | Nexpress Solutions Llc | Toner fusing station having an internally heated fuser roller |
| US6435246B1 (en) * | 2001-01-30 | 2002-08-20 | Eastman Kodak Company | Laminator assembly having a pressure roller with a perforated layer and a belt for a laminator |
| US20030052929A1 (en) * | 2001-09-17 | 2003-03-20 | Eastman Kodak Company | Laminator assembly having an improved dual durometor lamination roller |
| US20060237141A1 (en) * | 2005-04-01 | 2006-10-26 | Jun Cheng | Laminating roller and laminator therefor |
| CN2887932Y (en) * | 2005-10-08 | 2007-04-11 | 浙江印染机械有限公司 | Airbag roller |
| CN110712782A (en) * | 2019-09-30 | 2020-01-21 | 广州德润橡胶制品有限公司 | Laminator rubber roller and laminator rubber roller material |
| CN213167011U (en) * | 2020-08-25 | 2021-05-11 | 常州启赋安泰复合材料科技有限公司 | Composite material compression roller structure |
| CN216760909U (en) * | 2021-09-02 | 2022-06-17 | 成都环能德美环保装备制造有限公司 | Compression roller for magnetic press dewatering machine |
-
2022
- 2022-08-16 CN CN202210979122.4A patent/CN115384048A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1092112A (en) * | 1954-01-29 | 1955-04-19 | Turner Ag Maschf | Clamping cylinder for leather smoothing machines |
| US4756065A (en) * | 1987-01-27 | 1988-07-12 | American Roller Company | Paster roller |
| US6393247B1 (en) * | 2000-10-04 | 2002-05-21 | Nexpress Solutions Llc | Toner fusing station having an internally heated fuser roller |
| US6435246B1 (en) * | 2001-01-30 | 2002-08-20 | Eastman Kodak Company | Laminator assembly having a pressure roller with a perforated layer and a belt for a laminator |
| US20030052929A1 (en) * | 2001-09-17 | 2003-03-20 | Eastman Kodak Company | Laminator assembly having an improved dual durometor lamination roller |
| US20060237141A1 (en) * | 2005-04-01 | 2006-10-26 | Jun Cheng | Laminating roller and laminator therefor |
| CN2887932Y (en) * | 2005-10-08 | 2007-04-11 | 浙江印染机械有限公司 | Airbag roller |
| CN110712782A (en) * | 2019-09-30 | 2020-01-21 | 广州德润橡胶制品有限公司 | Laminator rubber roller and laminator rubber roller material |
| CN213167011U (en) * | 2020-08-25 | 2021-05-11 | 常州启赋安泰复合材料科技有限公司 | Composite material compression roller structure |
| CN216760909U (en) * | 2021-09-02 | 2022-06-17 | 成都环能德美环保装备制造有限公司 | Compression roller for magnetic press dewatering machine |
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| PB01 | Publication | ||
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