CN212883317U

CN212883317U - Lithium battery diaphragm coating system

Info

Publication number: CN212883317U
Application number: CN202021309285.4U
Authority: CN
Inventors: 韩联进; 徐远; 汪国红; 梁正广
Original assignee: Ningde Zhuogao New Material Technology Co Ltd
Current assignee: Ningde Zhuogao New Material Technology Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-04-06
Anticipated expiration: 2030-07-07

Abstract

The utility model provides a lithium battery diaphragm coating system, including unwinding mechanism, a first coating unit for at base film one side surface coating first coating, a second coating unit for at first coating surface coating second coating, a third coating unit for at base film opposite side surface coating third coating, a fourth coating unit and winding mechanism for at third coating surface coating fourth coating, be equipped with first oven between first coating unit and the second coating unit, be equipped with the second oven between second coating unit and the third coating unit, be equipped with the third oven between third coating unit and the fourth coating unit, be equipped with the fourth oven between fourth coating unit and the winding mechanism, in operation, the base film is emitted from unwinding mechanism and is passed through first coating unit, first oven, second coating unit, the second oven, third coating unit, And the third oven, the fourth coating device and the fourth oven reach the winding mechanism. The utility model discloses can once only accomplish the coating of four coatings.

Description

Lithium battery diaphragm coating system

Technical Field

The utility model relates to a diaphragm production facility technical field, concretely relates to lithium cell diaphragm coating system.

Background

In the manufacture of lithium battery separators (also referred to as separators), it is generally necessary to apply a plurality of coating layers on a base film in order to improve the heat shrinkage performance and good adhesion of the separator. The existing diaphragm coating system can only coat two coatings at a time, however, when four coatings need to be coated, the coating needs to be carried out twice, so that personnel and material rotation needs to be increased, the production efficiency is low, and the production cost of an enterprise is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the disappearance that prior art exists, provide a lithium cell diaphragm coating system, its coating that can once only accomplish four coatings, production efficiency is high, saves the labour, reduces the manufacturing cost of enterprise.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lithium battery diaphragm coating system comprises an unwinding mechanism, a first coating device, a second coating device, a third coating device, a fourth coating device and a winding mechanism, wherein the first coating device is used for coating a first coating on one side surface of a base film, the second coating device is used for coating a second coating on the surface of the first coating, the third coating device is used for coating a third coating on the other side surface of the base film, the fourth coating device is used for coating a fourth coating on the surface of the third coating, the first drying oven is arranged between the first coating device and the second coating device, the second drying oven is arranged between the second coating device and the third coating device, the third drying oven is arranged between the third coating device and the fourth coating device, the fourth drying oven is arranged between the fourth coating device and the winding mechanism, and during work, the base film is discharged from the unwinding mechanism and sequentially passes through the first coating device, the first drying oven, the second coating device, the second drying oven, the third coating device, And the third oven, the fourth coating device and the fourth oven reach the winding mechanism.

Preferably, the coating device further comprises a reversing mechanism for enabling the second coating to face downwards, and the reversing mechanism is arranged between the second oven and the third coating device.

Preferably, the reversing mechanism comprises a plurality of reversing rollers.

As a preferred scheme, an infrared laser heating mechanism is arranged in the first oven.

As a preferable scheme, an infrared laser heating mechanism is arranged in the third oven.

As a preferred scheme, the unwinding mechanism comprises a base film unwinding shaft and a feeding guide roller for guiding the base film to the first coating device, and the winding mechanism comprises a finished product winding shaft and a discharging guide roller for guiding a finished product output by the fourth oven to the finished product winding shaft.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, through setting up unwinding mechanism, be used for scribbling the base film in proper order with the first coating unit and the second coating unit of one side with thick liquids, be used for scribbling the third coating unit and the fourth coating unit and the winding mechanism of base film opposite side in proper order with thick liquids, and set up first oven, the second oven, third oven fourth oven, thereby can once only accomplish the coating of four coatings, high production efficiency, save the labour, reduce the manufacturing cost of enterprise.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a schematic view of an assembly structure according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a finished product according to an embodiment of the present invention.

The attached drawings indicate the following:

10-an unwinding mechanism; 101-base film unwinding shaft; 102-a feeding guide roller;

11-a first coating device; 12-a first oven; 13-a second coating device;

14-a second oven; 15-a reversing mechanism; 151-reversing rollers;

16-a third coating device; 17-a third oven; 18-a fourth coating device;

19-a fourth oven; 20-a winding mechanism; 201-finished product winding shaft;

202-a blanking guide roller; 21-base film.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1-2, a lithium battery separator coating system comprises an unwinding mechanism 10, a first coating device 11 for coating a first coating layer on one side surface of a base film 21, a second coating device 13 for coating a second coating layer on the surface of the first coating layer, a third coating device 16 for coating a third coating layer on the other side surface of the base film 21, a fourth coating device 18 for coating a fourth coating layer on the surface of the third coating layer, a reversing mechanism 15 for turning the second coating layer downwards, and a winding mechanism 20, wherein a first oven 12 is arranged between the first coating device 11 and the second coating device 13, a second oven 14 is arranged between the second coating device 13 and the third coating device 16, a third oven 17 is arranged between the third coating device 16 and the fourth coating device 18, a fourth oven 19 is arranged between the fourth coating device 18 and the winding mechanism 20, infrared laser heating mechanisms (not shown) are arranged in the first oven 12 and the third oven 17, the reversing mechanism 15 is arranged between the second oven 14 and the third coating device 16, the reversing mechanism 15 comprises a plurality of reversing rollers 151, and when the base film 21 is in work, the base film 21 is discharged from the unwinding mechanism 10 and sequentially passes through the first coating device 11, the first oven 12, the second coating device 13, the second oven 14, the reversing mechanism 15, the third coating device 16, the third oven 17, the fourth coating device 18 and the fourth oven 19 to reach the winding mechanism 20.

The unwinding mechanism 10 includes a base film unwinding shaft 101 and a feeding guide roller 102 for guiding the base film 21 to the first coating device 11, and the winding mechanism 20 includes a finished product winding shaft 201 and a discharging guide roller 202 for guiding the finished product output from the fourth oven 19 to the finished product winding shaft 201.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments by the technology of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A lithium battery diaphragm coating system is characterized by comprising an unwinding mechanism, a first coating device, a second coating device, a third coating device, a fourth coating device and a winding mechanism, wherein the first coating device is used for coating a first coating on one side surface of a base film, the second coating device is used for coating a second coating on the surface of the first coating, the third coating device is used for coating a third coating on the other side surface of the base film, the fourth coating device is used for coating a fourth coating on the surface of the third coating, a first drying oven is arranged between the first coating device and the second coating device, a second drying oven is arranged between the second coating device and the third coating device, a third drying oven is arranged between the third coating device and the fourth coating device, a fourth drying oven is arranged between the fourth coating device and the winding mechanism, and during work, the base film is discharged from the unwinding mechanism and sequentially passes through the first coating device, the first drying oven, the second coating device and the third coating device, The second oven, the third coating device, the third oven, the fourth coating device and the fourth oven reach the winding mechanism.

2. The lithium battery separator coating system of claim 1, further comprising a reversing mechanism that directs the second coating layer downward, the reversing mechanism being disposed between the second oven and the third coating device.

3. The lithium battery separator coating system of claim 2, wherein the reversing mechanism comprises a plurality of reversing rollers.

4. The lithium battery separator coating system of claim 1, wherein an infrared laser heating mechanism is disposed within the first oven.

5. The lithium battery separator coating system of claim 1, wherein an infrared laser heating mechanism is disposed within the third oven.

6. The lithium battery diaphragm coating system of claim 1, wherein the unwinding mechanism comprises a base film unwinding shaft and a feeding guide roller for guiding the base film to the first coating device, and the winding mechanism comprises a finished product winding shaft and a discharging guide roller for guiding a finished product output by the fourth oven to the finished product winding shaft.