Slit extrusion type coating die head gasket capable of being quickly assembled

Abstract

The utility model relates to a slit extrusion type coating die head gasket capable of being quickly assembled, which belongs to the technical field of manufacturing of lithium ion batteries for new energy automobiles, and comprises a gasket main body which is responsible for limiting transverse fluid; the gasket body is provided with a plurality of lateral flow baffles, the lateral flow baffles are provided with connecting clamping grooves, the lateral flow baffles are all connected to the gasket body through the connecting clamping grooves, the lateral flow baffles are responsible for flow limiting of lateral fluid, and the lateral flow baffles are all provided with chamfers. Products with different sizes and edge thicknesses can be switched in a short time, the cost is reduced, and the time debugging period is shortened.

Description

TECHNICAL FIELD

[0001] The utility model discloses a narrow slit extrusion type coating die pad piece of quick splicing belongs to lithium ion battery manufacturing technical field for new energy automobile. BACKGROUND

[0002] In the process of coating, generally need to thin the edge of coating. Its main reason is that the edge of the coating solvent will evaporate and dry first in the process of baking, due to the change of edge coating concentration and surface tension, cause the middle coating slurry will migrate to the edge, eventually lead to the edge of the drum after baking, cause the pole piece unqualified. In order to solve the problem of slurry edge migration, set up chamfer etc. Structure on the pad piece to thin the edge in advance, eliminate the drum edge problem caused by slurry migration, the size of chamfer determines the degree of thinning and thinning amount, big chamfer thinning amount is big, thinning size is wide.

[0003] Slurry coating is an important process of making lithium battery, its main purpose is to coat the slurry on the positive and negative battery pole piece. Narrow slit extrusion coating is a way of slurry coating, coating die includes upper die and lower die, upper die and lower die are provided with coating pad piece to form the narrow slit of slurry outflow, in order to produce different size and thin different specifications of battery pole piece need to use different coating width of battery pole piece, because the existing specification of coating pad piece can only produce corresponding coating width of battery pole piece, according to the production demand, need to change different specifications of coating pad piece frequently, in this case, need to match multiple specifications of coating pad piece, the commonality is poor, increase the production cost. INVENTION CONTENTS

[0004] In order to solve the problems of single application scene of pad piece, replacement of pad piece when changing model, long processing period of pad piece in the prior art, therefore, we provide a narrow slit extrusion type coating die pad piece of quick splicing.

[0005] The utility model discloses a narrow slit extrusion type coating die pad piece of quick splicing belongs to lithium ion battery manufacturing technical field for new energy automobile. Figures 1-3 As shown in the drawing, the die pad piece comprises:

[0006] The pad body 1 is responsible for the flow limiting of horizontal fluid.

[0007] A plurality of lateral baffle plates 2 are provided with connecting clamping grooves 3, and the plurality of lateral baffle plates 2 are connected to the pad body 1 through the connecting clamping grooves 3, and the lateral baffle plates 2 are responsible for the flow limiting of lateral fluid, and a plurality of chamfers 4 are arranged on the lateral baffle plates 2.

[0008] Further, a plurality of locking structures 5 are arranged on the pad body 1, and the locking structures 5 are used for fixing the pad body 1 and the lateral baffle plates 2.

[0009] Further, the lateral baffle 2 can be matched with various different specifications of chamfer 4.

[0010] Further, the lateral baffle 2 can be connected to different positions on the gasket body 1.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. The present application can realize the switching of different sizes and edge thickness products in a short time through the pre-purchased quick assembly of different components of the split type, thereby reducing the cost and shortening the time debugging period.

[0013] 2. The present application can realize the simultaneous production of different coating width products by adjusting the coating width through the position, width and length of the side baffle, thereby improving the versatility. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the overall structure of the present application, wherein Figure 1 As an abstract drawing.

[0015] Figure 2 The figure is a schematic diagram of the structure of the gasket body 1 in the present application.

[0016] Figure 3 The figure is a schematic diagram of the connection mode of the gasket body 1 and the lateral baffle 2 in the present application.

[0017] BRIEF DESCRIPTION OF DRAWINGS

[0018] 1. Gasket body, 2. Lateral baffle, 3. Connection slot, 4. Chamfer, 5. Locking structure. DETAILED DESCRIPTION

[0019] The following will give a specific implementation example of the present application combined with the drawings, and introduce the structure of the present application in detail. It should be noted that the application scope of the present application is not limited to the following examples, and all similar structures based on the present application are within the scope of the present application.

[0020] The present application is a kind of narrow slit extrusion type coating die gasket that can be quickly assembled, as shown in the figure, the die gasket comprises: Figures 1-3

[0021] The gasket body 1 is responsible for limiting the flow of transverse fluid;

[0022] ​A plurality of lateral baffles 2 are provided with connecting slots 3, and the plurality of lateral baffles 2 are connected to the gasket main body 1 through the connecting slots 3, and the high-precision splicing can realize the accurate control of the coating width and the coating edge thickness, and the lateral baffles 2 are responsible for the flow control of the lateral fluid, and the plurality of lateral baffles 2 are provided with chamfers 4.

[0023] As a further introduction of the embodiment, the gasket main body 1 is provided with a plurality of locking structures 5, and the locking structures 5 are used for fixing the gasket main body 1 and the lateral baffles 2.

[0024] As a further introduction of the embodiment, the lateral baffles 2 can be matched with a plurality of different specifications of chamfers 4, and the on-site quick disassembly and assembly can be realized.

[0025] As a further introduction of the embodiment, the lateral baffles 2 can be connected to different positions on the gasket main body 1, and the lateral baffles 2 can be increased according to actual needs.

[0026] The working principle of the utility model is as follows:

[0027] When working, first, the gasket is selected according to the actual product demand of the product, the suitable chamfered lateral baffle is spliced under a high-magnification two-dimensional microscope according to the demand, the gasket is installed between the upper and lower die heads, the die head is pushed to a suitable distance from the coating roller, the foil traction and the coating pump valve are opened, the slurry is uniformly applied on the surface of the foil, then whether the application width meets the process requirement is measured, and subsequent work is carried out.

[0028] At this point, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the utility model, and the technical schemes after the changes or replacements will all fall within the protection scope of the present application.

Claims

1. A slit extrusion coating die shoe that can be quickly assembled, characterized by, The die pad comprises: a pad body (1) responsible for limiting the flow of transverse fluid; a plurality of lateral baffles (2) provided with connecting clamping grooves (3), the plurality of lateral baffles (2) are connected to the pad body (1) through the connecting clamping grooves (3), and the lateral baffles (2) are responsible for limiting the flow of lateral fluid, and the plurality of lateral baffles (2) are each provided with a chamfer (4).

2. The slit extrusion coating die shim capable of being quickly assembled according to claim 1, wherein, The pad body (1) is provided with a plurality of sets of locking structures (5) for fixing the pad body (1) and the lateral baffles (2).

3. The slit extrusion coating die shim that can be quickly assembled according to claim 1, wherein, The lateral baffles (2) can be matched with a plurality of different specifications of chamfers (4).

4. The quick assembly slit extrusion coating die shim according to claim 1, wherein, The lateral baffles (2) can be arbitrarily connected to different positions on the pad body (1).

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