CN218190709U

CN218190709U - Coating die head and coating device

Info

Publication number: CN218190709U
Application number: CN202222477997.2U
Authority: CN
Inventors: 卞士磊
Original assignee: China Lithium Battery Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-01-03
Anticipated expiration: 2032-09-19

Abstract

The utility model relates to the technical field of battery manufacturing equipment, in particular to a coating die head and a coating device, wherein the coating die head comprises an upper die head and a lower die head which are arranged oppositely from top to bottom and have a gap, one of the upper die head and the lower die head is provided with a feed port, a part of edge area of the gap is provided with a discharge port, and a part of area of the gap forms a flow passage which is communicated with the feed port and the discharge port; one of the upper die head and the lower die head is provided with a flow blocking block protruding towards the other of the upper die head and the lower die head, and the flow blocking block is positioned in the flow channel and close to the discharge hole. Through the structure design, the utility model discloses can utilize the fender stream piece to realize the centre of pole piece coating and cut thin, because the fender stream piece sets up on last die head or lower die head, can promote the commonality of coating die head, can avoid simultaneously producing because of the great problem that reduces the surface density stability of pole piece of vortex area.

Description

Coating die head and coating device

Technical Field

The utility model relates to a battery manufacture equipment technical field especially relates to a coating die head and coating unit.

Background

The surface coating of the pole piece belongs to an important process in the production process of the battery, and the quality of the coating effect of the pole piece determines the difficulty degree, the quality and the production efficiency of the subsequent production process of the battery. The middle of pole piece coating is realized thinning through setting up the structure that blocks on the coating gasket to current coating equipment, and this kind of design leads to coating equipment's commonality relatively poor, and because the structure that blocks on the coating gasket can cause great turbulent flow area, leads to the areal density stability of the pole piece after the coating not good.

SUMMERY OF THE UTILITY MODEL

A main object of the present invention is to overcome at least one of the above-mentioned drawbacks of the prior art, and to provide a coating die head with good versatility and coating effect.

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

according to one aspect of the utility model, a coating die head is provided, wherein, the coating die head comprises an upper die head and a lower die head, the upper die head and the lower die head are arranged oppositely from top to bottom and have a gap, one of the upper die head and the lower die head is provided with a feed port, a discharge port is formed in a part of edge area of the gap, and a flow passage communicating the feed port and the discharge port is formed in a part of area of the gap; one of the upper die head and the lower die head is provided with a flow blocking block protruding towards the other of the upper die head and the lower die head, and the flow blocking block is located on the flow passage and close to the discharge hole.

According to the above technical scheme, the utility model provides an advantage and positive effect of coating die head lie in:

the utility model provides a coating die head is provided with towards wherein the protruding baffling piece that stretches of another at one of them of last die head and lower die head, and the baffling piece is located the runner of coating die head and is close to the discharge gate. Through the structure design, the utility model discloses can utilize the fender stream piece to realize the centre of pole piece coating and cut thin, because the fender stream piece sets up on last die head or lower die head, can promote the commonality of coating die head, can avoid simultaneously producing because of the great problem that reduces the surface density stability of pole piece of vortex area.

Another main object of the present invention is to overcome at least one of the above drawbacks of the prior art and to provide a coating device comprising the above coating die.

according to an aspect of the present invention, there is provided a coating apparatus, wherein, including the present invention, a coating die head is provided.

According to the above technical scheme, the utility model provides a coating device's advantage and positive effect lie in:

the utility model provides a coating unit, through adopting the utility model provides a coating die head can lifting means's commonality, can guarantee the surface density stability of pole piece simultaneously.

Drawings

The various objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is a schematic perspective view of a coating die according to an exemplary embodiment;

FIG. 2 is an exploded perspective view of FIG. 1;

FIG. 3 is a schematic plan view of the lower die shown in FIG. 1;

FIG. 4 is a schematic perspective view of a coating die according to another exemplary embodiment;

fig. 5 is an exploded perspective view of fig. 4.

The reference numerals are illustrated below:

100. an upper die head;

200. a lower die head;

210. a flow blocking block;

211. a fixing member;

310. a feeding port;

320. a discharge port;

400. coating a gasket;

410. a notch;

G. a gap;

H1. thickness;

H2. thickness;

l1, length;

w1, width;

w2, width;

x. a first direction;

y. second direction.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the following description of various exemplary embodiments of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of the invention.

Referring to fig. 1, a schematic perspective view of a coating die according to the present invention is representatively illustrated. In this exemplary embodiment, the coating die head provided by the present invention is described by way of example as applied to a battery pole piece coating apparatus. It will be readily appreciated by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the embodiments described below in order to apply the inventive related designs to other types of coating equipment, and still be within the scope of the principles of the coating die set forth herein.

As shown in fig. 1, in one embodiment of the present invention, the coating die provided by the present invention includes an upper die 100 and a lower die 200. Referring to fig. 2 and 3 in combination, fig. 2 representatively illustrates a schematic perspective exploded view of a coating die capable of embodying the principles of the present invention; a schematic plan view of a lower die 200 of a coating die capable of embodying the principles of the present invention is representatively illustrated in fig. 3. The structure, connection mode and functional relationship of the main components of the coating die head provided by the present invention will be described in detail below with reference to the above drawings.

As shown in fig. 1 to 3, in an embodiment of the present invention, the upper die 100 and the lower die 200 are disposed opposite to each other in a vertical direction and have a gap G, the lower die 200 is provided with a feeding port 310, a discharge port 320 is formed in a partial edge region of the gap G, and a flow channel for communicating the feeding port 310 and the discharge port 320 is formed in a partial region of the gap G. On this basis, the lower die 200 is provided with a flow blocking block 210 protruding toward the upper die 100, the flow blocking block 210 being located in the flow passage and near the discharge port 320. Through the structure design, the utility model discloses can utilize the baffling piece 210 to realize the centre of pole piece coating and cut thin, because baffling piece 210 sets up on last die head 100 or die head 200 down, can promote the commonality of coating die head, can avoid simultaneously because of the great face density stability's that reduces the pole piece of vortex area problem produces. In addition, set up pan feeding mouth 310 and fender class piece 210 respectively in lower die head 200 in this embodiment, because upper die head 100 needs the relative lower die head 200 upset frequently, consequently the utility model discloses based on above-mentioned structural design, can avoid influencing the upset of upper die head 100 and handle.

It should be noted that, the embodiment shown in fig. 1 to 3 is described by way of example in which the flow blocking block 210 is disposed on the lower die 200, and in some embodiments, the flow blocking block 210 may also be disposed on the upper die 100 and protrude toward the lower die 200. In addition, the embodiment shown in fig. 1 to 3 is described by taking the case that the material inlet 310 is disposed in the lower die 200, and in some embodiments, the material inlet 310 may also be disposed in the upper die 100. In addition, the embodiment shown in fig. 1 to 3 is exemplified by the flow blocking block 210 and the feeding port 310 being disposed on the lower die 200, and in some embodiments, the flow blocking block 210 may be disposed on one of the upper die 100 and the lower die 200, and the feeding port 310 may be disposed on the other of the upper die 100 and the lower die 200.

In other words, in various possible embodiments consistent with the design concept of the present invention, one of the upper die 100 and the lower die 200 is provided with the feeding port 310, and one of the upper die 100 and the lower die 200 is provided with the flow blocking block 210 protruding toward the other thereof, and the flow blocking block 210 is located at the flow passage and near the discharge port 320. In addition, the flow blocking block 210 and the feeding port 310 may be disposed on the upper die 100 or the lower die 200 together, or the flow blocking block 210 may be disposed on one of the upper die 100 and the lower die 200, and the feeding port 310 may be disposed on the other of the upper die 100 and the lower die 200, which are not limited in this embodiment.

As shown in fig. 1 to 3, in an embodiment of the present invention, the discharge hole 320 is formed in an edge region of the gap G extending along the first direction X. On this basis, the blocking block 210 may be located at the middle position of the discharge hole 320 along the first direction X. Through the structure design, the utility model discloses can guarantee the attenuate effect of the intermediate position of pole piece.

As shown in fig. 1, in an embodiment of the present invention, a thickness H1 of the baffle block 210 may be smaller than a thickness H2 of the discharge hole 320 along the arrangement direction of the upper die 100 and the lower die 200. In other words, for the upper die 100 and the lower die 200, the flow blocking block 210 provided at one of them still has a gap between the end thereof protruding toward the other one thereof and the other one. Through the structure design, the utility model discloses can further guarantee the attenuate effect of the intermediate position of pole piece. In some embodiments, the thickness of the baffle block 210 may also be equal to the thickness of the discharge hole 320 based on the fluidity of the slurry, and the embodiment is not limited thereto.

As shown in fig. 3, in an embodiment of the present invention, the discharge port 320 is formed in an edge region of the gap G extending along the first direction X, and at least a portion of the gap G is a storage chamber (not shown in the drawings), which is a space between the discharge port 320 and the flow channel for storing the slurry. On this basis, along the second direction Y perpendicular to the first direction X, the length L1 of the flow blocking block 210 may be less than 1/2 of the length of the storage cavity, for example, the length L1 of the flow blocking block 210 may be 1/8, 1/6, 1/5, 2/5, etc. of the length of the storage cavity. Here, the second direction Y may be understood as a discharge direction, not a relative arrangement direction of the upper die 100 and the lower die 200. In some embodiments, the length L1 of the flow blocking block 210 may also be greater than or equal to 1/2 of the length of the storage cavity, for example, the length L1 of the flow blocking block 210 may be 1/2, 5/8, etc. of the length of the storage cavity, and is not limited in this embodiment.

As shown in fig. 3, in an embodiment of the present invention, the discharge hole 320 is formed in an edge region of the gap G extending in the first direction X. On this basis, along the first direction X, the width W1 of the flow blocking block 210 may be less than 1/2 of the width W2 of the discharge port 320, for example, the width W1 of the flow blocking block 210 may be 1/8, 1/6, 1/5, 2/5, and the like of the width W2 of the discharge port 320. In some embodiments, the width W1 of the flow blocking block 210 may also be greater than or equal to 1/2 of the width W2 of the discharge port 320, for example, the width W1 of the flow blocking block 210 may be 1/2, 5/8, and the like of the width W2 of the discharge port 320, which is not limited in this embodiment.

As shown in fig. 3, in an embodiment of the present invention, the baffle block 210 may be detachably disposed on the lower die 200 (or the upper die 100). Specifically, the flow blocking block 210 may be removably disposed to the lower die 200 (or the upper die 100) by a fixing member 211, and the fixing member 211 may be, but is not limited to, a bolt. Through the structure design, the utility model discloses can be convenient for change the fender stream block 210 of different specifications to satisfy different on foot demands and to the difference requirement in the region of reducing, perhaps can realize the maintenance change to damaged fender stream block 210, need not to change whole die structure, be favorable to saving the cost.

Referring to fig. 4 and 5, a schematic perspective view of a coating die capable of embodying the inventive concept in another exemplary embodiment is representatively illustrated in fig. 4; the exploded perspective view of fig. 4 is representatively illustrated in fig. 5.

As shown in fig. 4 and 5, in an embodiment of the present invention, the coating die head of the present invention may further include a coating pad 400. Specifically, the coating shim 400 is disposed in the gap G, i.e., the coating shim 400 is disposed between the upper die 100 and the lower die 200. The coating pad 400 has a notch 410 facing one side edge of the gap G, and the notch 410 and the edge of the gap G together define the discharge port 320. On this basis, the flow blocking block 210 can be located within the range of the notch 410.

In addition, based on the structural design of the coating die including the coating shim 400, in some embodiments, the relationship between the thickness and the width of the flow blocking block 210 and the discharge hole 320 described in the present specification may also be understood as the relationship between the thickness of the flow blocking block 210 and the coating shim 400 and the relationship between the width of the notch 410 of the coating shim 400.

It should be noted herein that the coating dies shown in the drawings and described in the present specification are only a few examples of the many types of coating dies that can employ the principles of the present invention. It should be clearly understood that the principles of the present invention are in no way limited to any of the details or any of the components of the coating die shown in the drawings or described in this specification.

In summary, the coating die of the present invention is provided with the flow blocking block 210 protruding toward the other one of the upper die 100 and the lower die 200, and the flow blocking block 210 is located in the flow passage of the coating die and close to the discharge port 320. Through the structure design, the utility model discloses can utilize and keep off the centre that stream block 210 realized the pole piece coating and cut thin, because keep off stream block 210 and set up on last die head 100 or lower die head 200, can promote the commonality of coating die head, can avoid simultaneously producing because of the great problem that reduces the areal density stability of pole piece of vortex area.

Based on the above detailed description of several exemplary embodiments of the coating die of the present invention, an exemplary embodiment of the coating apparatus of the present invention will be described below.

In an embodiment of the present invention, the coating apparatus provided by the present invention includes the coating die head provided by the present invention and described in detail in the above embodiment.

It should be noted herein that the coating apparatus shown in the drawings and described in the present specification are but a few examples of the many types of coating apparatus that can employ the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any details or any components of the coating apparatus shown in the drawings or described in the present specification.

To sum up, the utility model provides a coating unit is through adopting the utility model provides a coating die head can lifting means's commonality, can guarantee the surface density stability of pole piece simultaneously.

Exemplary embodiments of the coating die and coating apparatus set forth in the present invention are described and/or illustrated in detail above. Embodiments of the invention are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or step of one embodiment can also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. described and/or illustrated herein, the articles "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc. Furthermore, the terms "first" and "second" and the like in the claims and the description are used merely as labels, and are not numerical limitations of their objects.

While the present invention has been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the claims.

Claims

1. The coating die head is characterized by comprising an upper die head and a lower die head, wherein the upper die head and the lower die head are arranged in an up-and-down opposite mode and are provided with gaps, a feeding port is formed in one of the upper die head and the lower die head, a discharging port is formed in a part of the edge area of each gap, and a runner for communicating the feeding port with the discharging port is formed in a part of the gap; one of the upper die head and the lower die head is provided with a flow blocking block protruding towards the other of the upper die head and the lower die head, and the flow blocking block is positioned in the flow passage and close to the discharge port.

2. The coating die according to claim 1, wherein the discharge port is formed at an edge region of the gap extending in the first direction; wherein, along first direction, it is located to keep off the class piece the intermediate position of discharge gate.

3. The coating die of claim 1, wherein the thickness of the flow-blocking block is smaller than the thickness of the discharge port in the arrangement direction of the upper die and the lower die.

4. The coating die head according to claim 1, wherein the discharge port is formed in an edge region of the gap extending in the first direction, at least a part of the gap being a reservoir chamber; and the length of the flow blocking block is less than 1/2 of the length of the material storage cavity along a second direction perpendicular to the first direction.

5. The coating die according to claim 1, wherein the discharge port is formed at an edge region of the gap extending in the first direction; wherein, along the first direction, the width of baffling piece is less than 1/2 of the width of discharge gate.

6. The coating die of claim 1, wherein the flow-blocking block is disposed in the lower die.

7. The coating die of claim 1, wherein the flow-blocking block is disposed in the upper die or the lower die in conjunction with the feed inlet.

8. The coating die of claim 1, wherein the flow-blocking block is removably disposed in one of the upper die and the lower die.

9. The coating die of claim 1, further comprising a coating shim disposed in the gap, the coating shim having a notch toward a side edge of the gap, the notch and the edge of the gap together defining the exit orifice; wherein, the flow blocking block is positioned in the range of the notch.

10. A coating apparatus comprising a coating die according to any one of claims 1 to 9.