CN214440558U

CN214440558U - Coating gasket

Info

Publication number: CN214440558U
Application number: CN202023144320.4U
Authority: CN
Inventors: 崔强; 谢亚军; 辛玲; 杨鹏; 杜洋洋; 苑棚
Original assignee: Henan Yicheng Hanbo Energy Technology Co ltd
Current assignee: Henan Yicheng Hanbo Energy Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-10-22
Anticipated expiration: 2030-12-24

Abstract

The utility model relates to a coating gasket, which comprises a bottom plate, side plates, circular through holes and bulges, wherein the bottom plate is a rectangular plate body, the left end and the right end of the upper surface of the bottom plate are upwards extended to form two symmetrical side plates, the bottom plate and the side plates are of an integrally formed structure, the bottom plate and the side plates are provided with the circular through holes which penetrate through the plate body, the bulges are circular arc vertical plate bodies which are upwards protruded along the upper surface of the bottom plate, a discharge port is formed between the upper part of the bulges and the inner side wall of the side plates, the left end and the right end of the bulges are separated from the inner end surface of the bottom part of the side plates, the bulges are lower than 1/2 of the heights of the side plates, the gasket is arranged between an upper die head and a lower die head through the circular through holes, slurry flows into a cavity formed by the upper die head and the lower die head and the gasket through the feed port on the lower die head, and is blocked by the bulges, so that the slurry can flow towards both sides to increase the pressure of both sides and further to ensure that the discharge amount is more uniform, the thinning area is eliminated or reduced, and the problem of uneven coating is solved.

Description

Coating gasket

Technical Field

The utility model relates to an extrusion coating technical field, concretely relates to coating gasket.

Background

In the industrial production of lithium batteries, die extrusion coating is the most widely applied coating mode due to the advantages of high precision, wide coating window, high reliability and the like. The slurry is supplied by a precision feed system (e.g., a screw pump) and enters the cavity inside the die, is uniformly distributed across the width of the coating, and is finally extruded through the die slot to form a coating on the moving substrate.

The existing coating gasket is generally of a regular rectangular groove structure, slurry is coated on a base material through a slit formed between an opening of the coating gasket and an upper die head and a slit formed between the opening of the coating gasket and a lower die head, the slurry enters a cavity formed by the upper die head and the lower die head and the coating gasket from the middle position of the lower die head generally, the slurry flows at the middle position in the cavity smoothly at two ends, the discharge amount of the positions at the two ends in the cavity is lower than that of the middle position, a thinning area is formed, and the slurry is coated unevenly.

Disclosure of Invention

The utility model discloses a solve thick liquids and flow at the cavity intermediate position and be more smooth than both ends, die head both ends discharge capacity is on the low side, the inhomogeneous problem of thick liquids coating.

In order to solve the above problem, the technical scheme of the utility model is that:

a coating gasket comprises a bottom plate and side plates, wherein the bottom plate is a rectangular plate body, the two symmetrical side plates extend upwards along the left end and the right end of the upper surface of the bottom plate, the side plates are rectangular plate bodies with the thickness the same as that of the bottom plate, circular through holes penetrating through the plate bodies are formed in the bottom plate and the side plates, and a bulge is formed in the middle of the bottom plate;

the arch is the convex vertical plate body of upwards protruding arc along the bottom plate upper surface, form the discharge gate between two curb plate inside walls of protruding top, bellied both ends respectively with be close to mutually have the interval between the curb plate inside wall, interval between bellied both ends and the curb plate inside wall that is close to mutually all is less than 1/2 of protruding bottom surface length, bellied thickness is the same with bottom plate thickness, bellied height is less than the 1/2 of curb plate height, the bottom plate length's that is greater than between two curb plate inside walls 1/2 of bellied bottom surface length.

Further, the circular through holes are through holes penetrating through the front and rear surfaces of the bottom plate and the side plates.

Further, the side plates are arranged along the vertical direction of the bottom plate.

Further, the bottom plate and the side plates are of an integrally formed structure.

Further, the distance between the left end and the right end of the protrusion and the inner end face of the bottom of the side plate is equal to 20 mm.

Furthermore, the outer side wall of the side plate is respectively flush with the end face of the bottom plate on the same side up and down.

Through the technical scheme, the invention has the beneficial effects that:

the utility model relates to a coating gasket, comprising a base plate, the curb plate, arch and circular through-hole, the bottom plate is the rectangular plate body, the curb plate that both ends upwards vertical extension had two symmetries about along the bottom plate upper surface, bottom plate and curb plate are the integrated into one piece structure, distance between both ends and the curb plate bottom terminal surface equals 20 mm about the arch, bellied 1/2 that highly is less than the curb plate height, the gasket passes through circular through-hole and installs between upper and lower die head, in the feed inlet on the thick liquids passes through the lower die head gushes into the cavity that upper and lower die head and gasket formed, receive bellied blockking, thick liquids surges to both sides, make both sides pressure rise, and then make the discharge more even, eliminate or reduce the skiving region, the inhomogeneous problem of coating has been solved.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a view showing a state of use of the present invention (a plan view showing the connection of the coating pad to the lower die);

FIG. 3 is a cross-sectional view of the present invention in use (with the coating shim attached to the upper and lower dies);

the reference numbers in the drawings are as follows: the die comprises a bottom plate 1, a side plate 2, a protrusion 3, a circular through hole 4, a lower die head 6, a feed inlet 7, a cavity 8 and an upper die head 9.

Detailed Description

The invention will be further explained with reference to the drawings and the detailed description below:

as shown in fig. 1 to 3, a coating gasket comprises a bottom plate 1 and side plates 2, wherein the bottom plate 1 is a rectangular plate body, two symmetrical side plates 2 extend upwards along the left end and the right end of the upper surface of the bottom plate 1, the side plates 2 are rectangular plate bodies with the thickness the same as that of the bottom plate 1, the side plates 2 are arranged along the vertical direction of the bottom plate 1, the outer side walls of the side plates 2 are respectively flush with the end surfaces of the bottom plate 1 at the same side up and down, the bottom plate 1 and the side plates 2 are of an integrally formed structure, circular through holes 4 penetrating through the plate body are formed in the bottom plate 1 and the side plates 2, the circular through holes 4 are through holes penetrating through the front surface and the rear surface of the bottom plate 1 and the side plates 2, and a protrusion 3 is arranged in the middle of the bottom plate 1;

the structure is characterized in that the protrusion 3 is a circular arc vertical plate body protruding upwards along the upper surface of the bottom plate 1, a discharge hole is formed between the inner side walls of the two side plates 2 above the protrusion 3, the two ends of the protrusion 3 are respectively spaced from the inner side walls of the side plates 2 close to each other, the spacing between the two ends of the protrusion 3 and the inner side walls of the side plates 2 close to each other is smaller than 1/2 of the length of the bottom surface of the protrusion 3, the thickness of the protrusion 3 is the same as that of the bottom plate 1, the height of the protrusion 3 is lower than 1/2 of the height of the side plates 2, the length of the bottom surface of the protrusion 3 is larger than 1/2 of the length of the bottom plate 1 between the inner side walls of the two side plates 2, and the distance between the left end and the right end of the protrusion 3 and the inner end surface of the bottom of each side plate 2 is equal to 20 mm;

during the use, install the gasket between last die head 9 and lower die head 6 through circular through-hole 4, the bottom plate is the rectangular plate body, both ends upwards vertical extension has the rectangle curb plate 2 of two symmetries about along bottom plate 1 upper surface, bottom plate 1 and curb plate 2 are integrated into one piece structure, because the setting of arch 3 on bottom plate 1, the distance between both ends and the terminal surface equals 20 mm in the curb plate 2 bottom about arch 3, the thickness of arch 3 is the same with bottom plate 1 thickness, arch 3 highly is less than 1/2 of curb plate 2 height, when thick liquids gush into upper and lower die head and the cavity 8 of gasket formation through feed inlet 7, receive arch 3's the blockking, thick liquids gush to both sides, make both sides pressure rise, and then make the discharge capacity more even, eliminate or reduce the skiving region, the inhomogeneous problem of coating has been solved.

The present invention is not limited to the above embodiments, and any modifications or substitutions of the technical solutions of the present invention are within the protection scope of the present invention.

Claims

1. A coating gasket comprises a bottom plate (1) and side plates (2), wherein the bottom plate (1) is a rectangular plate body, and the two symmetrical side plates (2) extend upwards along the left end and the right end of the upper surface of the bottom plate (1), and is characterized in that the side plates (2) are rectangular plate bodies with the thickness the same as that of the bottom plate (1), circular through holes (4) penetrating through the plate bodies are formed in the bottom plate (1) and the side plates (2), and a bulge (3) is formed in the middle of the bottom plate (1);

protruding (3) are for following bottom plate (1) upper surface upward convex circular arc vertical plate body, form the discharge gate between two curb plate (2) inside walls of protruding (3) top, there is the interval between the both ends of protruding (3) and the curb plate (2) inside wall that is close to mutually respectively, the both ends of protruding (3) and the interval between the curb plate (2) inside wall that is close to mutually all are less than the 1/2 of protruding (3) bottom surface length, the thickness of protruding (3) is the same with bottom plate (1) thickness, the height of protruding (3) is less than the 1/2 of curb plate (2) height, the bottom surface length of protruding (3) is greater than the 1/2 of bottom plate (1) length between two curb plate (2) inside walls.

2. A coated gasket according to claim 1 wherein the circular through holes (4) are through holes penetrating the front and rear surfaces of the bottom plate (1) and the side plates (2).

3. A coated gasket according to claim 1, wherein the side plates (2) are arranged in a vertical direction along the bottom plate (1).

4. A coated gasket according to claim 1 wherein the base plate (1) and side plates (2) are of unitary construction.

5. The coated gasket of claim 1 wherein the distance between the left and right ends of the protrusion (3) and the inner end surface of the bottom of the side plate (2) is equal to 20 mm.

6. The coating pad of claim 1, wherein the outer side walls of the side plates (2) are respectively flush with the end surfaces of the bottom plate (1) on the same side.