CN211538402U - Lithium ion battery coating machine gasket - Google Patents
Lithium ion battery coating machine gasket Download PDFInfo
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- CN211538402U CN211538402U CN201922393271.9U CN201922393271U CN211538402U CN 211538402 U CN211538402 U CN 211538402U CN 201922393271 U CN201922393271 U CN 201922393271U CN 211538402 U CN211538402 U CN 211538402U
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Abstract
The utility model relates to a lithium ion battery coating machine gasket, which comprises a gasket main body, a gasket left part and a gasket right part, wherein the gasket main body is in a ruler shape, the left side of the gasket main body is connected with the gasket left part, the right side of the gasket main body is connected with the gasket right part, and the gasket left part and the gasket right part are symmetrical; the gasket mounting left handrail is arranged at the left end part of the gasket main body and is parallel to the protrusion of the ruler-shaped main body, and the gasket mounting right handrail is arranged at the right end part of the gasket main body and is parallel to the protrusion of the ruler-shaped main body; the left part and the right part of the gasket are L-shaped, and the tail ends of L-shaped transverse sections of the left part and the right part of the gasket are connected with the trapezoidal buffer parts. The utility model discloses make thick liquids keep even velocity of flow through the die head, make the pole piece coating keep thickness even, guarantee about the pole piece not light on the side of marginal weight, keep scribbling the uniformity of coating surface density and coating material district thickness.
Description
Technical Field
The utility model relates to a lithium ion battery field, concretely relates to lithium ion battery coating machine gasket.
Background
The production of the pole piece of the lithium ion battery comprises the steps of homogenizing, coating, rolling, slitting and the like, wherein the coating quality is critical, and the consistency of the battery capacity and the safety performance of the battery are directly determined. The pole piece coating usually adopts extrusion coating machine, has the pressure chamber in the extrusion coating machine die head, and after thick liquids got into the extrusion coating machine from the pressure chamber centre, through certain pressure with thick liquids even coating on the substrate surface and drying, make the battery. Because of the feeding mode and the discharging mode of the die head of the extrusion coating machine, slurry feeding and discharging are free of buffer areas, the flow velocity of slurry flowing through the edge of the gasket is very high, the weight of a pole piece in an area with 20-30 mm of the left edge and the right edge of the coating is light, the density of the coating surface is not uniform, debugging by an operator is difficult at last, and the consistency and the safety of the battery capacity are seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an extrusion coating machine die head gasket that coating is even makes thick liquids keep even velocity of flow through the die head, makes the pole piece coating keep thickness even, guarantees that edge weight is not lighter about the pole piece, keeps the uniformity of scribbling surface density and scribbling material district thickness.
In order to solve the technical problem, the utility model provides a technical scheme is:
a lithium ion battery coater gasket comprises a gasket main body, a gasket left part and a gasket right part, wherein the gasket main body is ruler-shaped, the left side of the gasket main body is connected with the gasket left part, the right side of the gasket main body is connected with the gasket right part, and the gasket left part and the gasket right part are symmetrical; the gasket mounting left handrail is arranged at the left end part of the gasket main body and is parallel to the protrusion of the ruler-shaped main body, and the gasket mounting right handrail is arranged at the right end part of the gasket main body and is parallel to the protrusion of the ruler-shaped main body; the left part and the right part of the gasket are L-shaped, the vertical section of the L shape is vertical to the ruler-shaped main body of the gasket, the horizontal section of the L shape is parallel to the ruler-shaped main body of the gasket, the L-shaped horizontal section of the left part of the gasket faces the right, and the L-shaped horizontal section of the right part of the gasket faces the left; the tail ends of the L-shaped transverse sections of the left part and the right part of the gasket are connected with a trapezoidal buffer part, the trapezoidal buffer part is provided with a left long edge and a right short edge which are parallel, a bevel edge at the upper part and a right-angle bottom edge at the lower part, and the left long edge is as long as the vertical length of the tail end of the L-shaped transverse section and is connected with the L-shaped transverse section.
Furthermore, the left side of the gasket body is connected with the left part of the gasket in an integrated manner, and the right side of the gasket body is connected with the right part of the gasket in an integrated manner.
Furthermore, a plurality of gasket body installation positioning grooves are distributed on the gasket body, a plurality of gasket installation left positioning grooves are distributed on the left part of the gasket, and a plurality of gasket installation right positioning grooves are distributed on the right part of the gasket.
Furthermore, a gasket inner chamfer is formed between the L-shaped transverse section of the left part and the right part of the gasket and the trapezoidal buffer part, a gasket outer chamfer is formed between the bevel edge and the right short edge of the upper part of the trapezoidal buffer part, and a gasket lower chamfer is formed between the right short edge and the right-angle bottom edge of the lower part of the trapezoidal buffer part.
Furthermore, the included angle a between the oblique side of the trapezoidal buffer part and the left long side ranges from 20 degrees to 50 degrees.
Furthermore, the proportion range of the length ratio c: b: e of the height of the bevel edge, the right short edge and the right-angle bottom edge of the trapezoidal buffer part is (1-4): (1-4): (1:3).
Furthermore, the length d of the L-shaped transverse sections of the left part and the right part of the gasket is 10 mm-50 mm.
Has the advantages that:
the utility model discloses a lithium ion battery coating machine gasket makes thick liquids keep even velocity of flow through the die head, makes the pole piece coating keep thickness even, guarantees about the pole piece that edge weight is not light partially. By using the improved gasket, the coating and machine adjusting time is shortened from 4h to 1h, and the efficiency is improved by 75%; the gasket has stable cavity pressure, uniform streamline distribution, good left and right coating weight consistency, and CPK (continuous process pressure) of more than or equal to 1.8; cov is less than or equal to 0.4 percent.
Drawings
FIG. 1: the utility model discloses a structural schematic of lithium ion battery coating machine gasket.
FIG. 2: the structure of the trapezoidal buffer part is schematically shown.
In the figure: 1-a gasket body; 2-left part of gasket, 3-right part of gasket, 4-trapezoidal buffer part, 5-L-shaped vertical section, 6-L-shaped transverse section, 7-inner chamfer of gasket, 8-lower chamfer of gasket, 9-outer chamfer of gasket, 10-main body installation positioning groove of gasket, 11-left positioning groove of gasket, 12-right positioning groove of gasket, 13-left handrail of gasket, and 14-right handrail of gasket.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
A lithium ion battery coating machine gasket comprises a gasket main body 1, a gasket left part 2 and a gasket right part 3, wherein the gasket main body 1 is in a ruler shape, the left side of the gasket main body 1 is connected with the gasket left part 2, the right side of the gasket main body 1 is connected with the gasket right part 3, and the gasket left part 2 and the gasket right part 3 are symmetrical; the left end part of the gasket body 1 is provided with a left gasket mounting handrail 13 parallel to the protrusion of the ruler-shaped body, and the right end part of the gasket body 1 is provided with a right gasket mounting handrail 14 parallel to the protrusion of the ruler-shaped body.
The left part 2 and the right part 3 of the gasket are L-shaped, the vertical section of the L shape is vertical to the ruler-shaped main body of the gasket, the horizontal section of the L shape is parallel to the ruler-shaped main body of the gasket, the L-shaped horizontal section 6 of the left part 2 of the gasket faces right, and the L-shaped horizontal section 6 of the right part 3 of the gasket faces left.
The tail ends of the L-shaped transverse sections 6 of the left gasket part 2 and the right gasket part 3 are connected with a trapezoidal buffer part 4, the trapezoidal buffer part 4 is provided with a left long side and a right short side which are parallel, a bevel edge at the upper part and a right-angle bottom edge at the lower part, and the left long side is as long as the tail end of the L-shaped transverse section 6 and is connected with the L-shaped transverse section.
Gasket main part 1 left side and gasket left part 2 formula as an organic whole are connected, gasket main part 1 right side and gasket right part 3 formula as an organic whole be connected.
The gasket body 1 is distributed with a plurality of gasket body installation positioning grooves 10, the left part 2 of the gasket is distributed with a plurality of gasket installation left positioning grooves 11, and the right part 3 of the gasket is distributed with a plurality of gasket installation right positioning grooves 12.
The gasket left part 2, the L-shaped transverse section 6 of the gasket right part 3 and the trapezoidal buffer part 4 form an inner gasket chamfer 7, an outer gasket chamfer 9 is formed between the bevel edge and the right short edge of the upper part of the trapezoidal buffer part 4, and a lower gasket chamfer 8 is formed between the right short edge and the right bottom edge of the lower part of the trapezoidal buffer part 4.
The included angle a between the oblique side of the trapezoidal buffer part 4 and the left long side ranges from 20 degrees to 50 degrees.
The proportion range of the length ratio c to b to e of the height of the bevel edge, the right short edge and the right bottom edge of the trapezoidal buffer part 4 is (1-4): (1-4): (1:3).
The length d of the L-shaped transverse section 6 of the left gasket part 2 and the right gasket part 3 is 10 mm-50 mm.
According to the simulation result, the cavity pressure is stable, and the streamline distribution is uniform. By using the improved gasket, the coating and machine adjusting time is shortened from 4h to 1h, and the efficiency is improved by 75%; the gasket has stable cavity pressure, uniform streamline distribution, good left and right coating weight consistency, and CPK (continuous process pressure) of more than or equal to 1.8; cov is less than or equal to 0.4 percent.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and any skilled person familiar with the art will not depart from the technical scope of the present invention, and the technical spirit of the present invention will be any simple modification, equivalent replacement, and improvement made by the above embodiments, and the like, all still belong to the technical scope of the present invention.
Claims (7)
1. The utility model provides a lithium ion battery coating machine gasket which characterized in that: the gasket comprises a gasket main body, a gasket left part and a gasket right part, wherein the gasket main body is ruler-shaped, the left side of the gasket main body is connected with the gasket left part, the right side of the gasket main body is connected with the gasket right part, and the gasket left part and the gasket right part are symmetrical; the gasket mounting left handrail is arranged at the left end part of the gasket main body and is parallel to the protrusion of the ruler-shaped main body, and the gasket mounting right handrail is arranged at the right end part of the gasket main body and is parallel to the protrusion of the ruler-shaped main body; the left part and the right part of the gasket are L-shaped, the vertical section of the L shape is vertical to the ruler-shaped main body of the gasket, the horizontal section of the L shape is parallel to the ruler-shaped main body of the gasket, the L-shaped horizontal section of the left part of the gasket faces the right, and the L-shaped horizontal section of the right part of the gasket faces the left; the tail ends of the L-shaped transverse sections of the left part and the right part of the gasket are connected with a trapezoidal buffer part, the trapezoidal buffer part is provided with a left long edge and a right short edge which are parallel, a bevel edge at the upper part and a right-angle bottom edge at the lower part, and the left long edge is as long as the vertical length of the tail end of the L-shaped transverse section and is connected with the L-shaped transverse section.
2. The lithium ion battery coater gasket of claim 1, wherein: the left side of the gasket body is connected with the left part of the gasket in an integrated manner, and the right side of the gasket body is connected with the right part of the gasket in an integrated manner.
3. The lithium ion battery coater gasket of claim 1, wherein: the gasket body on distribute and have a plurality of gasket body installation constant head tank, distribute a plurality of gasket installation left constant head tanks on the gasket left part, distribute a plurality of gasket installation right constant head tanks on the gasket right part.
4. The lithium ion battery coater gasket of claim 1, wherein: the gasket left part, the L-shaped transverse section of the gasket right part and the trapezoidal buffer part form an inner gasket chamfer, an outer gasket chamfer is formed between the bevel edge and the right short edge of the upper part of the trapezoidal buffer part, and a lower gasket chamfer is formed between the right short edge and the right bottom edge of the lower part of the trapezoidal buffer part.
5. The lithium ion battery coater gasket of claim 1, wherein: the included angle a between the oblique side of the trapezoidal buffer part and the left long side ranges from 20 degrees to 50 degrees.
6. The lithium ion battery coater gasket of claim 1, wherein: the proportion range of the length ratio c to b to e of the height of the bevel edge, the right short edge and the right-angle bottom edge of the trapezoidal buffer part is (1-4): (1-4): (1:3).
7. The lithium ion battery coater gasket of claim 1, wherein: the length d of the L-shaped transverse sections of the left part and the right part of the gasket is 10 mm-50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922393271.9U CN211538402U (en) | 2019-12-27 | 2019-12-27 | Lithium ion battery coating machine gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922393271.9U CN211538402U (en) | 2019-12-27 | 2019-12-27 | Lithium ion battery coating machine gasket |
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| Publication Number | Publication Date |
|---|---|
| CN211538402U true CN211538402U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922393271.9U Active CN211538402U (en) | 2019-12-27 | 2019-12-27 | Lithium ion battery coating machine gasket |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510043A (en) * | 2021-04-26 | 2021-10-19 | 深圳市曼恩斯特科技股份有限公司 | Coating die head and coating equipment |
-
2019
- 2019-12-27 CN CN201922393271.9U patent/CN211538402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510043A (en) * | 2021-04-26 | 2021-10-19 | 深圳市曼恩斯特科技股份有限公司 | Coating die head and coating equipment |
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