Coating gasket and coating equipment

Abstract

The utility model provides a coating gasket and a coating device, a gasket substrate is arranged between a first die head and a second die head of the coating device, and the gasket substrate is provided with a component adjusting area which is used for arranging positions of a first adjusting end piece, a second adjusting end piece and a plurality of separating adjusting components. The first adjusting end piece is movably arranged on one side of the component adjusting area, the second adjusting end piece is movably arranged on the other side of the component adjusting area, and a coating working area is formed between the first adjusting end piece and the second adjusting end piece. The extending direction of the first adjusting end piece and the second adjusting end piece is a straight line where the width direction of a pole piece coating area is located, and the position of at least one of the first adjusting end piece, the second adjusting end piece and the separation adjusting assembly is adjusted on the straight line where the width direction of the pole piece coating area is located; therefore, the width of the coating working area is adjusted. The separation adjusting assembly is used for covering the tabs and preventing the paint from flowing into the tabs covered by the separation adjusting assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery manufacturing technical field especially relates to a kind of coating gasket and coating equipment. BACKGROUND

[0002] At present, coating is an important link in battery production process. In research and development, trial production and mass production stage, one out of two, one out of four, one out of eight, one out of twelve and many other different width of coating width, different tab width products are produced, and the size of coating width mainly depends on the width of coating opening of coating gasket. Tab width depends on the width of the baffle in the middle of coating gasket. The existing coating gasket is of integral structure, and different extrusion gaskets need to be replaced during coating for different width of pole piece and different width of tab, so as to achieve coating width and tab width consistent with process design. The opening width of extrusion gasket needs to be adjusted according to different viscosity, solid content and rheological properties of slurry during coating, so as to achieve the expected coating width and thinning requirement, so a plurality of coating gaskets with different opening width and different flow guide style need to be prepared to meet the requirements of different coating processes.

[0003] However, the coating gasket has long manufacturing cycle, and when adapting to different coating requirements, it will cause the extension of production time and production cycle, reduce production efficiency and have high cost. INVENTION CONTENTS

[0004] Therefore, it is necessary to provide a coating gasket and coating equipment aiming at the above technical problems.

[0005] A coating gasket comprises a gasket base, a first adjusting end piece, a second adjusting end piece and a plurality of separation adjusting components, the gasket base is provided with a sub-piece adjusting area, the first adjusting end piece is movably arranged on one side of the sub-piece adjusting area, the second adjusting end piece is movably arranged on the other side of the sub-piece adjusting area, the separation adjusting components are movably arranged between the first adjusting end piece and the second adjusting end piece, the separation adjusting components form a part of pole piece coating area between the first adjusting end piece and the second adjusting end piece respectively, and at least one of the first adjusting end piece, the second adjusting end piece and the separation adjusting components can adjust its position to change the width of pole piece coating area.

[0006] In one embodiment, each of the separation adjusting components is arranged along a straight line in the width direction of the pole piece coating area, and a part of the pole piece coating area is formed between adjacent two separation adjusting components.

[0007] In one of the embodiments, the gasket base is provided with a separator sliding groove extending along a straight line in the width direction of the pole piece coating area, the separator adjusting assembly comprises a separator extension and a coating flow blocking part connected with each other, the separator extension is movably arranged in the separator sliding groove, and the coating flow blocking part is arranged between the first adjusting end piece and the second adjusting end piece, and the coating flow blocking part forms a pole piece coating area with the first adjusting end piece and the second adjusting end piece respectively.

[0008] In one of the embodiments, the separator adjusting piece comprises a first separator and a second separator, the first separator and the second separator are movably arranged between the first adjusting end piece and the second adjusting end piece respectively, and the first separator and the second separator adjust positions on a straight line in the width direction of the pole piece coating area, and the first separator and the second separator form a tab covering area therebetween.

[0009] In one of the embodiments, the first separator comprises a first extension and a first flow blocking part connected with each other, and the second separator comprises a second extension and a second flow blocking part connected with each other, the first extension and the second extension are movably arranged between the first adjusting end piece and the second adjusting end piece respectively, and the first flow blocking part and the second flow blocking part are arranged between the first adjusting end piece and the second adjusting end piece respectively, and the first flow blocking part and the second flow blocking part form a pole piece coating area therebetween.

[0010] In one of the embodiments, the gasket base is provided with a separator sliding groove extending along a straight line in the width direction of the pole piece coating area, and the first extension and the second extension belonging to the same separator adjusting assembly are movably arranged in the same separator sliding groove respectively.

[0011] In one of the embodiments, the first separator comprises a first lap joint part, the second separator comprises a second lap joint part, the first lap joint part extends to the second separator, the second lap joint part extends to the first separator, and the first lap joint part and the second lap joint part abut.

[0012] In one of the embodiments, the gasket base is provided with a plurality of end piece sliding grooves extending along a straight line in the width direction of the pole piece coating area, the first adjusting end piece is provided with a first end piece extension movably arranged in one of the end piece sliding grooves, and the second adjusting end piece is provided with a second end piece extension movably arranged in another of the end piece sliding grooves.

[0013] In one embodiment, the first adjusting end piece is provided with a first end piece fixing part, the first end piece fixing part is provided with a first end piece fixing hole, the second adjusting end piece is provided with a second end piece fixing part, and the second end piece fixing part is provided with a second end piece fixing hole.

[0014] A coating device, comprising: at least two die heads and the coating spacer of any one of the above embodiments, the coating spacer is arranged between the two die heads.

[0015] The coating spacer and the coating device, the spacer base piece is arranged between the first die head and the second die head of the coating device, and the spacer base piece is arranged in the spacer base piece adjusting area. The position of the first adjusting end piece, the second adjusting end piece and a plurality of partition adjusting components is arranged. The first adjusting end piece is movably arranged on one side of the spacer base piece adjusting area, and the second adjusting end piece is movably arranged on the other side of the spacer base piece adjusting area. The first adjusting end piece and the second adjusting end piece form a coating working area therebetween. At least one of the first adjusting end piece, the second adjusting end piece and the partition adjusting component can adjust the position to change the width of the pole piece coating area. The partition adjusting component is used to cover the tab, and block the coating flowing into the tab covered by the partition adjusting component. The partition adjusting component is movably arranged between the first adjusting end piece and the second adjusting end piece, and the partition adjusting component forms a pole piece coating area with the first adjusting end piece and the second adjusting end piece respectively. At least one of the first adjusting end piece, the second adjusting end piece and the partition adjusting component adjusts the position on the straight line in the width direction of the pole piece coating area, so that the pole piece coating area can be adjusted, so that the width of the pole piece coating area meets the coating demand, without the need to make a coating spacer, reduce the production time and production cycle, improve the production efficiency, and reduce the cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the coating spacer in one embodiment;

[0017] Figure 2 It is a structural schematic diagram of the coating device in one embodiment;

[0018] Figure 3 It is another structural schematic diagram of the coating device in one embodiment;

[0019] Figure 4 It is another structural schematic diagram of the coating spacer in one embodiment;

[0020] Figure 5 It is a structural schematic diagram of the first adjusting end piece in one embodiment;

[0021] Figure 6 It is a structural schematic diagram of the second adjusting end piece in one embodiment;

[0022] Figure 7 Structure diagram of a spacer adjustment assembly in one embodiment;

[0023] Figure 8 Application diagram of a coating spacer in one embodiment;

[0024] Figure 9 Another application diagram of a coating spacer in one embodiment.

[0025] 100, spacer base; 110, spacer sliding slot; 120, end piece sliding slot; 200, first adjustment end piece; 210, first end piece fixing portion; 211, first end piece fixing hole; 220, first end piece extension portion; 230, first end piece flow blocking portion; 240, first pressing portion; 300, second adjustment end piece; 310, second end piece fixing portion; 311, second end piece fixing hole; 320, second end piece extension portion; 330, second end piece flow blocking portion; 340, second pressing portion; 400, spacer adjustment assembly; 410, first spacer; 411, first extension portion; 4110, first extension hole; 412, first flow blocking portion; 413, first overlapping portion; 420, second spacer; 421, second extension portion; 4210, second extension hole; 422, second flow blocking portion; 423, second overlapping portion; 4X1, spacer extension portion; 4X2, coating flow blocking portion; 4X10, spacer extension hole; 10A, tab coating area; 10B, tab covering area; 20, base material; 20A, tab area; C, inclination angle; 20B, tab area; 30, fixing piece; 40, pressing strip. DETAILED DESCRIPTION

[0026] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0027] At present, coating is an important link in the battery production process, in the research and development, trial production, mass production stage, will produce a two, a four, a eight, a twelve and many other different width of the product, the size of the coating width mainly depends on the width of the coating gasket coating opening; Among them, the width of the middle tab depends on the width of the gasket middle stop sheet, the existing extrusion gasket is a whole structure, for different width of the pole piece, and the width of the tab, when coating, different extrusion gasket needs to be replaced to achieve the coating width and the width of the tab consistent with the process design, and according to the different viscosity, solid content, rheological properties of slurry need to adjust the opening width of the extrusion gasket to achieve the expected coating width and thinning requirements, therefore, need to prepare a variety of different opening width, different flow pattern of coating gasket, can meet the requirements of different coating process, and the gasket production cycle is long, causing the production time and production cycle extension reduces the production efficiency, greatly increases the number of gasket production and cost.

[0028] Embodiment one

[0029] In this embodiment, as shown in Figures 1 to 4 A coating gasket is provided, which comprises: a gasket base 100, a first adjusting end piece 200, a second adjusting end piece 300 and a plurality of separation adjusting assemblies 400, the gasket base 100 is provided with a sub-piece adjusting area, the first adjusting end piece 200 is movably arranged on one side of the sub-piece adjusting area, the second adjusting end piece 300 is movably arranged on the other side of the sub-piece adjusting area, the separation adjusting assembly 400 is movably arranged between the first adjusting end piece 200 and the second adjusting end piece 300, the separation adjusting assembly 400 forms a part of the pole piece coating area 10A between the first adjusting end piece 200 and the second adjusting end piece 300 respectively, at least one of the first adjusting end piece 200, the second adjusting end piece 300 and the separation adjusting assembly 400 can adjust its position to change the width of the pole piece coating area 10A.

[0030] In the embodiment, the gasket base 100 is arranged between two die heads of a coating device, the gasket base 100 is provided with a sub-piece adjusting area, the sub-piece adjusting area is arranged between the two die heads of the coating device, and the coating material flows from the die heads to the sub-piece adjusting area. The first adjusting end piece 200 is movably arranged at one side of the sub-piece adjusting area, the second adjusting end piece 300 is movably arranged at the other side of the sub-piece adjusting area, and the width between the first adjusting end piece 200 and the second adjusting end piece 300 is the maximum width of the sub-piece adjusting area that can be coated. The separation adjusting assembly 400 is movably arranged between the first adjusting end piece 200 and the second adjusting end piece 300, the base material 20 is arranged between the first adjusting end piece 200 and the second adjusting end piece 300, the coating material flowing out of the die head is coated on the base material 20, and the area of the base material 20 covered with the coating layer forms the tab area 20A, and the area of the base material 20 without the coating layer forms the lug area 20B. The sub-piece adjusting area is divided into the tab coating area 10A and the lug covering area 10B, the lug covering area 10B is the area where the separation adjusting assembly 400 is located, the separation adjusting assembly 400 covers the lug area 20B to be formed on the base material 20, and in the coating process, the separation adjusting assembly 400 blocks the coating material from flowing into the lug area 20B to be formed on the base material 20, so that the area is not covered with the coating layer, and the lug area 20B is formed after the coating is completed. The coating material flows from the die head to the coating area, and flows to the tab area 20A to be formed on the base material 20 above or below the coating area, so that the area is covered with the coating layer, and the tab area 20A is formed after the coating is completed. The straight line where the first adjusting end piece 200 and the second adjusting end piece 300 are located is the straight line where the width direction of the tab coating area is located, the extension direction of the straight line where the width direction of the tab coating area is located is the same as the extension direction of the straight line where the width direction of the tab coating area 10A is located, for example Figure 1The width direction of the tab region 20B and the width direction of the tab region 20A are both on the straight line where the width direction of the tab coating region is located, and the part of the tab coating region 10A between the partition adjustment assembly 400 and the first adjustment end piece 200, and the part of the tab coating region 10A between the partition adjustment assembly 400 and the second adjustment end piece 300 are formed, and the position of any one of the partition adjustment assembly 400, the first adjustment end piece 200 and the second adjustment end piece 300 on the straight line where the width direction of the tab coating region is located can be adjusted to adjust the width of the tab coating region 10A. For example, when the partition adjustment assembly 400 and the first adjustment end piece 200 are close to each other on the straight line where the width direction of the tab coating region is located, the width of the tab coating region 10A between the partition adjustment assembly 400 and the first adjustment end piece 200 becomes smaller, and the width of the tab region 20A formed on the substrate 20 becomes smaller. For the width of the tab region 20B formed on the substrate 20, a plurality of partition adjustment assemblies 400 can be spliced along the straight line where the width direction of the tab coating region is located; or a partition adjustment assembly 400 formed by combining two parts adjusted on the straight line where the width direction of the tab coating region is located can be used to adjust the width of the tab coating region 10B separately, the tab coating region 10B is formed between the two parts, and the distance between the two parts on the straight line where the width direction of the tab coating region is located is adjusted to adjust the width of the tab coating region 10B, and then the width of the tab region 20B is adjusted.

[0031] In the embodiment, the gasket base 100 is arranged between the first die and the second die of the coating device, and the gasket base 100 is arranged in a sub-piece adjusting area for arranging positions of the first adjusting end piece 200, the second adjusting end piece 300, and the plurality of separation adjusting assemblies 400. The first adjusting end piece 200 is movably arranged at one side of the sub-piece adjusting area, the second adjusting end piece 300 is movably arranged at the other side of the sub-piece adjusting area, and the first adjusting end piece 200 and the second adjusting end piece 300 form a coating working area therebetween. The extension direction of the first adjusting end piece 200 and the second adjusting end piece 300 is a straight line in the width direction of the pole piece coating area, at least one of the first adjusting end piece 200, the second adjusting end piece 300, and the separation adjusting assembly 400 adjusts the position along the straight line in the width direction of the pole piece coating area, and the first adjusting end piece 200, the second adjusting end piece 300, and the separation adjusting assembly 400 can be close to the first adjusting end piece 200 side to adjust the position, or can be close to the second adjusting end piece 300 side to adjust the position, so as to adjust the width of the coating working area. The separation adjusting assembly 400 is used for covering the pole lug and blocking the coating from flowing into the pole lug covered by the separation adjusting assembly 400. The separation adjusting assembly 400 is movably arranged between the first adjusting end piece 200 and the second adjusting end piece 300, and the separation adjusting assembly 400 and the first adjusting end piece 200 and the second adjusting end piece 300 form a pole piece coating area 10A therebetween. At least one of the first adjusting end piece 200, the second adjusting end piece 300, and the separation adjusting assembly 400 adjusts the position along the straight line in the width direction of the pole piece coating area, so as to adjust the pole piece coating area 10A, so that the width of the pole piece coating area 10A meets the coating requirement, without the need to additionally manufacture a coating gasket, thereby reducing the production time and the production cycle, improving the production efficiency, and reducing the cost.

[0032] As shown in Figure 1 In an embodiment, the separation adjusting assemblies 400 are arranged at intervals along the straight line in the width direction of the pole piece coating area 10A, and adjacent two separation adjusting assemblies 400 form a part of the pole piece coating area 10A.

[0033] In this embodiment, the separation adjustment components 400 are spaced apart along a straight line along the width direction of the electrode coating area 10A, that is, they are spaced apart along a straight line along the width direction of the electrode coating area where the first adjustment end piece 200 and the second adjustment end piece 300 are located. Adjacent separation adjustment components 400 form a portion of the electrode coating area 10A. The separation adjustment component 400 closest to the first adjustment end piece 200 forms a portion of the electrode coating area 10A with the first adjustment end piece 200, and the separation adjustment component 400 closest to the second adjustment end piece 300 forms a portion of the electrode coating area 10A with the second adjustment end piece 300. Therefore, a portion of the electrode coating area 10A can be formed at different positions in the separation adjustment area. By adjusting the spacing between adjacent separation adjustment components 400, the spacing between the separation adjustment component 400 and the first adjustment end piece 200, and the spacing between the separation adjustment component 400 and the second adjustment end piece 300, the width of the electrode coating area 10A at different positions can be adjusted respectively.

[0034] like Figure 1 As shown, in one embodiment, the gasket base 100 is provided with a separator slide groove 110, and the separator slide groove 110 extends along a straight line in the width direction of the pole piece coating area, and the separator adjustment component 400 includes a connected separator extension part 4X1 and a paint flow blocking part 4X2, and the separator extension part 4X1 is movably arranged in the separator slide groove 110, and the paint flow blocking part 4X2 is arranged between the first adjustment end piece 200 and the second adjustment end piece 300, and the paint flow blocking part 4X2 forms a pole piece coating area 10A with the first adjustment end piece 200 and the second adjustment end piece 300 respectively.

[0035] In this embodiment, the separation adjustment assembly 400 includes a connected separation extension portion 4X1 and a paint flow blocking portion 4X2. The separation extension portion 4X1 extends along a straight line along the width direction of the electrode coating area. The extension line of the paint flow blocking portion 4X2 forms an angle with the extension line of the separation extension portion 4X1. This angle is the same as the inclination angle C of the electrode area 20A on the substrate 20. The inclination angle C of the electrode area 20A is the angle between the length extension line of the electrode area 20A and the straight line along the width direction. When the electrode area 20A is rectangular, the inclination angle C of the electrode area 20A is 90 degrees. In this case, the extension line of the separation extension portion 4X1 and the extension line of the paint flow blocking portion 4X2 are perpendicular. The paint baffle 4X2 is disposed between the first adjustment end piece 200 and the second adjustment end piece 300. The paint baffles 4X2 of different separation adjustment assemblies 400 form a portion of the electrode coating area 10A. The first adjustment end piece 200 and the paint baffle 4X2 closest thereto form a portion of the electrode coating area 10A. The second adjustment end piece 300 and the paint baffle 4X2 closest thereto form a portion of the electrode coating area 10A. The gasket base 100 is disposed on a separator chute 110 extending along a straight line in the width direction of the electrode coating area. The width of the separator chute 110 along the straight line in the width direction of the electrode coating area is greater than the width of the separator chute 110 along the straight line in the width direction of the electrode coating area. The separation extension 4X1 is movably disposed in the separator chute 110. By adjusting the position of the separator extension 4X1 within the separator chute 110, the position of the paint flow blocking portion 4X2 on the straight line along the width direction of the electrode coating area is adjusted, thereby adjusting the spacing between the paint flow blocking portions 4X2 of different separator adjustment assemblies 400, the spacing between the first adjustment end piece 200 and the paint flow blocking portion 4X2 closest thereto, and the spacing between the second adjustment end piece 300 and the paint flow blocking portion 4X2 closest thereto, thereby adjusting the width of the electrode coating area 10A at different locations. A separator chute 110 is provided for each separator adjustment assembly 400, and the separator extension 4X1 of each separator adjustment assembly 400 is movably disposed within a separator chute 110.

[0036] like Figure 1 As shown, in one embodiment, the separation adjustment member includes a first separation member 410 and a second separation member 420, and the first separation member 410 and the second separation member 420 are movably arranged between the first adjustment end member 200 and the second adjustment end member 300, respectively. The first separation member 410 and the second separation member 420 adjust their positions on a straight line in the width direction of the electrode coating area, and a pole ear covering area 10B is formed between the first separation member 410 and the second separation member 420.

[0037] In this embodiment, each separation adjustment member includes a first separation member 410 and a second separation member 420, which are movably disposed between the first adjustment end member 200 and the second adjustment end member 300, respectively. A portion of the tab coverage area 10B is formed between the first separation member 410 and the second separation member 420 belonging to the same separation adjustment member. A portion of the electrode coating area 10A is formed between the first adjustment end member 200 and the first separation member 410 or the second separation member 420 closest thereto. A portion of the electrode coating area 10A is formed between the second adjustment end member 300 and the first separation member 410 or the second separation member 420 closest thereto. By adjusting the spacing between the first separation member 410 and the second separation member 420 belonging to the same separation adjustment member in the adjustment direction, the width of the portion of the tab coverage area 10B between the first separation member 410 and the second separation member 420 can be adjusted.

[0038] like Figure 1 As shown, in one embodiment, the first separator 410 includes a first extension portion 411 and a first baffle portion 412 connected to each other, and the second separator 420 includes a second extension portion 421 and a second baffle portion 422 connected to each other, the first extension portion 411 and the second extension portion 421 are respectively movably arranged between the first adjustment end piece 200 and the second adjustment end piece 300, the first baffle portion 412 and the second baffle portion 422 are respectively arranged between the first adjustment end piece 200 and the second adjustment end piece 300, and a pole piece coating area 10A is formed between the first baffle portion 412 and the second baffle portion 422.

[0039] In this embodiment, the first extension portion 411 is connected to the first flow blocking portion 412. The extension line of the first extension portion 411 extends between the first adjustment end piece 200 and the second adjustment end piece 300. The extension line of the first flow blocking portion 412 intersects with the extension line of the first extension portion 411. The angle formed between the extension line of the first flow blocking portion 412 and the extension line of the first extension portion 411 is the same as the inclination angle C of the pole piece region 20A on the substrate 20. The second extension portion 421 is connected to the second flow blocking portion 422. The extension line of the second extension portion 421 extends between the first adjustment end piece 200 and the second adjustment end piece 300. The extension line of the second flow blocking portion 422 intersects with the extension line of the second extension portion 421. The angle formed between the extension line of the second flow blocking portion 422 and the extension line of the second extension portion 421 is the same as the inclination angle C of the pole piece region 20A on the substrate 20. The first extension 411 and the second extension 421 are adjusted in a straight line along the width of the electrode coating area. The first and second baffles 412 and 422 are then adjusted in a straight line along the width of the electrode coating area. The first and second baffles 412 and 422 are parallel to each other. The first and second baffles 412 and 422 belonging to the same separator adjuster form a portion of the electrode tab coverage area 10B, while the first and second baffles 412 and 422 belonging to different separator adjusters form a portion of the electrode coating area 10A. Adjusting the spacing between the first and second baffles 412 and 422 within the same separator adjuster adjusts the width of the electrode tab coverage area 10B at that location. The separator extension 4X1 includes the first extension 411 of the first separator 410 and the second extension 421 of the second separator 420. The coating baffle 4X2 includes the first baffle 412 of the first separator 410 and the second baffle 422 of the second separator 420.

[0040] like Figure 1 As shown, in one embodiment, the gasket base 100 is provided with a separator slide groove 110, and the separator slide groove 110 extends along a straight line in the width direction of the electrode coating area, and the first extension portion 411 and the second extension portion 421 belonging to the same separation adjustment component 400 are respectively movably arranged in the same separator slide groove 110.

[0041] In this embodiment, the first extension portion 411 and the second extension portion 421 of the same partition adjustment component 400 are movably arranged in the same partition slide groove 110, so that the first extension portion 411 and the second extension portion 421 are close to each other, which is conducive to adjusting the tab coverage area 10B with a smaller width.

[0042] like Figure 1As shown, in one embodiment, the first partition 410 includes a first overlapping portion 413, and the second partition 420 includes a second overlapping portion 423. The first overlapping portion 413 extends toward the second partition 420, and the second overlapping portion 423 extends toward the first partition 410, and the first overlapping portion 413 and the second overlapping portion 423 abut against each other.

[0043] In this embodiment, the first separator 410 and the second separator 420 belonging to the same separation adjustment assembly 400 are in contact, the first overlapping portion 413 extends along a straight line in the width direction of the electrode coating area, and the second overlapping portion 423 extends along a straight line in the width direction of the electrode coating area, and the first overlapping portion and the second overlapping portion 423 are parallel. When the relative position of the first separator 410 and the second separator 420 changes, the first overlapping portion and the second overlapping portion 423 support each other, making the relative position of the first overlapping portion and the second overlapping portion 423 more stable.

[0044] like Figure 1 As shown, further, a scale marking line is provided on the first overlapping portion 413 and / or the second overlapping portion 423, and the scale marking line extends along a straight line in the width direction of the electrode coating area.

[0045] In this embodiment, when the position of the first overlap portion 413 and / or the second overlap portion 423 is adjusted, the change in the distance of the scale marking line relative to other positions can be observed to observe the change in the spacing between the first overlap portion 413 and the second overlap portion 423, thereby facilitating the observation of the change in the width of the tab covering area 10B between the first separator 410 and the second separator 420.

[0046] like Figure 5 and Figure 6 As shown, further, the first adjustment end piece 200 and / or the second adjustment end piece 300 are provided with scale marking lines, and the scale marking lines extend along a straight line in the width direction of the electrode coating area.

[0047] In this embodiment, when the first adjustment end piece 200 or the second adjustment end piece 300 adjusts its position, the change in the distance of the scale marking line relative to other positions can be observed to observe the change in the spacing between the separation adjustment component 400 and the first adjustment end piece 200 or the second adjustment end piece 300, thereby facilitating the observation of the change in the width of the coating area 10A between the separation adjustment component 400 and the first adjustment end piece 200, or the change in the width of the coating area 10A between the separation adjustment component 400 and the second adjustment end piece 300.

[0048] like Figure 1As shown, further, the first partition 410 of the same partition adjustment member is arranged close to the first adjustment end member 200, and the second partition 420 of the same partition adjustment member is arranged close to the second adjustment end member 300; the first lap portion 413 is arranged at one end of the first flow blocking portion 412, the first extension portion 411 is arranged at the other end of the first flow blocking portion 412, the first lap portion 413 extends towards the second partition 420, the first extension portion 411 extends away from the second partition 420, and one side of the first lap portion 413 towards the second partition 420 abuts one side of the second flow blocking portion 422; the second lap portion 423 is arranged between the two ends of the second flow blocking portion 422, the second extension portion 421 is arranged at one end of the second flow blocking portion 422 close to the first extension portion 411, the second lap portion 423 extends towards the first partition 410, the second extension portion 421 extends away from the first partition 410, and one side of the second lap portion 423 towards the first partition 410 abuts one side of the first flow blocking portion 412; the partition sliding groove 110 is arranged at the bottom of the partition adjustment region, the first extension portion 411 and the second extension portion 421 are respectively movably arranged in the partition sliding groove 110, the opposite sides of the first extension portion 411 respectively abut the groove walls of the partition sliding groove 110, the opposite sides of the second extension portion 421 respectively abut the groove walls of the partition sliding groove 110, and one side of the first lap portion 413 towards the partition sliding groove 110 abuts the second lap portion 423.

[0049] In this embodiment, the separator chute 110 is disposed at the bottom of the component adjustment region and extends along a straight line in the width direction of the electrode coating region. A slot is provided at the top of the separator chute 110, through which the first and second baffles 412, 422 extend into the component adjustment region. The first and second baffles 412, 422 adjust their positions within the slot. The top wall of the slot on one side of the slot abuts the first extension 411, while the top wall of the slot on the other side abuts the second extension 421. The bottom wall of the separator chute 110 abuts the first and second extensions 411, 421, respectively. The first and second extensions 411, 421 adjust their positions within the separator chute. The first overlap portion 413 is connected to one end of the first baffle portion 412 away from the first extension portion 411, and the second overlap portion 423 is connected between the two ends of the second baffle portion 422. The distance between the second overlap portion 423 and the bottom of the divided-component adjustment area is smaller than the distance between the first overlap portion 413 and the bottom of the divided-component adjustment area. There is also a partial second baffle portion 422 on the side of the second overlap portion 423 facing away from the bottom of the divided-component adjustment area. The first overlap portion 413 abuts against the partial second baffle portion 422 on the side facing the second partition 420, and the top of the first overlap portion 413 and the top of the second baffle portion 422 are in the same plane. The second overlapping portion 423 extends toward the first divider 410 and abuts the intersection between the first overlapping portion 413 and the first flow-blocking portion 412. The second overlapping portion 423 abuts the first flow-blocking portion 412 on one side of the first divider 410, and the top of the second overlapping portion 423 abuts the bottom of the first overlapping portion 413. Thus, between the first flow-blocking portion 412 and the second flow-blocking portion 422, the first overlapping portion 413 and the second overlapping portion 423 abut on three different planes, supporting each other and further stabilizing the first overlapping portion 413 and the second overlapping portion 423 during position adjustment. Beyond the first flow-blocking portion 412 and the second flow-blocking portion 422, the first extension portion 411 and the second extension portion 421 are respectively disposed between the top and bottom of the divider chute 110, further stabilizing the first extension portion 411 and the second extension portion 421 during position adjustment within the divider chute 110.

[0050] like Figure 1 As shown, in one embodiment, the gasket base 100 is provided with a plurality of end piece slots 120, and the end piece slots 120 extend along a straight line in the width direction of the electrode coating area, and the first adjustment end piece 200 is provided with a first end piece extension portion 220, and the first end piece extension portion 220 is movably set in one of the end piece slots 120, and the second adjustment end piece 300 is provided with a second end piece extension portion 320, and the second adjustment end piece 300 is movably set in another of the end piece slots 120.

[0051] In the embodiment, the opposite sides of the sub-component adjusting area are respectively provided with end-component sliding grooves 120. The extension direction of the end-component sliding groove 120 where the first end-component extension part 220 is located is from the second adjusting end-component 300 to the first adjusting end-component 200. The extension direction of the end-component sliding groove 120 where the second end-component extension part 320 is located is from the first adjusting end-component 200 to the second adjusting end-component 300. The depth of the first end-component extension part 220 and / or the second end-component extension part 320 extending into the end-component sliding groove 120 is adjusted, the position of the straight line where the first adjusting end-component 200 / second adjusting end-component 300 is located in the width direction of the pole piece coating area is adjusted, and then the width of the pole piece coating area 10A between the first adjusting end-component 200 / second adjusting end-component 300 and the separation adjusting assembly 400 is adjusted.

[0052] As shown in the drawings, Figure 1 In an embodiment, the first adjusting end-component 200 is provided with a first end-component fixing part 210, and the first end-component fixing part 210 is provided with a first end-component fixing hole 211. The second adjusting end-component 300 is provided with a second end-component fixing part 310, and the second end-component fixing part 310 is provided with a second end-component fixing hole 311.

[0053] In the embodiment, the first end-component fixing part 210 is arranged in the sub-component adjusting area, and the first end-component fixing part 210 extends on the straight line where the width direction of the pole piece coating area is located. The second end-component fixing part 310 extends on the straight line where the width direction of the pole piece coating area is located. The first end-component fixing hole 211 extends on the straight line where the width direction of the pole piece coating area is located. The second end-component fixing hole 311 extends on the straight line where the width direction of the pole piece coating area is located. When the first adjusting end-component 200 / second adjusting end-component 300 is adjusted in position on the straight line where the width direction of the pole piece coating area is located, the first end-component fixing part 210 / second end-component fixing part 310 is adjusted in position on the straight line where the width direction of the pole piece coating area is located. When the positions of the first end-component fixing part 210 and the second end-component fixing part 310 are adjusted, the first end-component fixing part 210 and the second end-component fixing part 310 are fixed to the die by the fixing member 30, for example, a screw, a bolt, a screw, etc. The fixing member 30 passes through the first end-component fixing hole 211, one end of the fixing member 30 abuts against the first end-component fixing part 210, and the other end of the fixing member 30 is fixed to the die. The fixing member 30 passes through the second end-component fixing hole 311, one end of the fixing member 30 abuts against the second end-component fixing part 310, and the other end of the fixing member 30 is fixed to the die, so that the first adjusting end-component 200 and the second adjusting end-component 300 are fixed by different fixing members 30.

[0054] As shown in the drawings, Figure 1As shown, in one embodiment, the top side and the bottom side of the first end piece extension 220 are respectively provided with spacing teeth, and the top side and the bottom side of the end piece slide 120 where the first end piece extension 220 is located are respectively provided with spacing teeth, the spacing teeth on the top side of the first end piece extension 220 are engaged with the spacing teeth on the top side of the end piece slide 120, and the spacing teeth on the bottom side of the first end piece extension 220 are engaged with the spacing teeth on the bottom side of the end piece slide 120.

[0055] In this embodiment, when adjusting the position of the first end piece extension 220 on the straight line in the width direction of the electrode coating area, after determining the position of the first end piece extension 220 according to the width of the coating area, the tooth peaks and tooth valleys of the pitch teeth of the first end piece extension 220 and the pitch teeth of the end piece chute 120 are staggered, so that when the first end piece extension 220 is placed into the end piece chute 120, the tooth peaks of the first end piece extension 220 engage with the tooth valleys of the end piece chute 120, and the tooth valleys of the first end piece extension 220 engage with the tooth peaks of the end piece chute 120. In this way, the relative position of the first end piece extension 220 and the end piece chute 120 is fixed, preventing the first end piece extension 220 from shifting, which would cause an error in the width of the electrode coating area 10A.

[0056] like Figure 1 As shown, further, the top side and bottom side of the second end piece extension 320 are respectively provided with spacing teeth, and the top side and bottom side of the end piece slide 120 where the second end piece extension 320 is located are respectively provided with spacing teeth, the spacing teeth on the top side of the second end piece extension 320 are engaged with the spacing teeth on the top side of the end piece slide 120, and the spacing teeth on the bottom side of the second end piece extension 320 are engaged with the spacing teeth on the bottom side of the end piece slide 120.

[0057] In this embodiment, when adjusting the position of the second end piece extension 320 on the straight line in the width direction of the electrode coating area, after determining the position of the second end piece extension 320 according to the width of the coating area, the tooth peaks and tooth valleys of the pitch teeth of the second end piece extension 320 and the pitch teeth of the end piece chute 120 are staggered, so that when the second end piece extension 320 is placed into the end piece chute 120, the tooth peaks of the second end piece extension 320 engage with the tooth valleys of the end piece chute 120, and the tooth valleys of the second end piece extension 320 engage with the tooth peaks of the end piece chute 120. In this way, the relative position of the second end piece extension 320 and the end piece chute 120 is fixed, preventing the second end piece extension 320 from shifting, which would cause an error in the width of the electrode coating area 10A.

[0058] like Figure 1As shown, in an embodiment, the top side and the bottom side of the partition extension 4X1 are respectively provided with pitch teeth, the top side and the bottom side of the partition slide groove 110 are respectively provided with pitch teeth, the pitch teeth of the top side of the partition extension 4X1 and the pitch teeth of the top side of the partition slide groove 110 are engaged, and the pitch teeth of the bottom side of the partition extension 4X1 and the pitch teeth of the bottom side of the partition slide groove 110 are engaged.

[0059] In the present embodiment, when adjusting the position of the partition extension 4X1 on the straight line in the width direction of the pole piece coating area, after determining the position of the partition extension 4X1 according to the width of the coating area, the pitch teeth of the partition extension 4X1 and the pitch teeth of the partition slide groove 110 are staggered in the tooth peak and the tooth valley, so that when the partition extension 4X1 is placed into the partition slide groove 110, the tooth peak of the partition extension 4X1 engages into the tooth valley of the partition slide groove 110, and the tooth valley of the partition extension 4X1 engages into the tooth peak of the partition slide groove 110. In this way, the relative position of the partition extension 4X1 and the partition slide groove 110 is fixed, and the partition extension 4X1 is prevented from being deviated, so as to avoid errors in the width of the pole piece coating area 10A or the tab covering area 10B.

[0060] Further, the top side and the bottom side of the first extension 411 are respectively provided with pitch teeth, the top side and the bottom side of the partition slide groove 110 are respectively provided with pitch teeth, the pitch teeth of the top side of the first extension 411 and the pitch teeth of the top side of the partition slide groove 110 are engaged, and the pitch teeth of the bottom side of the first extension 411 and the pitch teeth of the bottom side of the partition slide groove 110 are engaged.

[0061] In the present embodiment, when adjusting the position of the first extension 411 on the straight line in the width direction of the pole piece coating area, after determining the position of the first extension 411 according to the width of the coating area, the pitch teeth of the first extension 411 and the pitch teeth of the partition slide groove 110 are staggered in the tooth peak and the tooth valley, so that when the first extension 411 is placed into the partition slide groove 110, the tooth peak of the first extension 411 engages into the tooth valley of the partition slide groove 110, and the tooth valley of the first extension 411 engages into the tooth peak of the partition slide groove 110. In this way, the relative position of the first extension 411 and the partition slide groove 110 is fixed, and the first extension 411 is prevented from being deviated, so as to avoid errors in the width of the pole piece coating area 10A or the tab covering area 10B.

[0062] Further, the top side and the bottom side of the second extension 421 are respectively provided with pitch teeth, the top side and the bottom side of the partition slide groove 110 are respectively provided with pitch teeth, the pitch teeth of the top side of the second extension 421 and the pitch teeth of the top side of the partition slide groove 110 are engaged, and the pitch teeth of the bottom side of the second extension 421 and the pitch teeth of the bottom side of the partition slide groove 110 are engaged.

[0063] In the present embodiment, when the positions of the second extension portions 421 are adjusted along the straight line in the width direction of the pole piece coating region, after the positions of the second extension portions 421 are determined according to the width of the coating region, the pitch teeth of the second extension portions 421 and the pitch teeth of the partition slot 110 are offset in the tooth peak and tooth valley, so that when the second extension portions 421 are placed into the partition slot 110, the tooth peaks of the second extension portions 421 engage into the tooth valleys of the partition slot 110, and the tooth valleys of the second extension portions 421 engage into the tooth peaks of the partition slot 110. In this way, the relative positions of the second extension portions 421 and the partition slot 110 are fixed, and the second extension portions 421 are prevented from being deviated, so as to avoid errors in the width of the pole piece coating region 10A or the tab covering area 10B.

[0064] In an embodiment, the first lap portion 413 is provided with pitch teeth, and the second lap portion 423 is provided with pitch teeth, and the pitch teeth of the first lap portion 413 and the pitch teeth of the second lap portion 423 are engaged.

[0065] In the present embodiment, when the positions of the first partition 410 and the second partition 420 are adjusted along the straight line in the width direction of the pole piece coating region, after the relative positions of the first partition 410 and the second partition 420 are determined according to the width of the coating region, the pitch teeth of the first lap portion 413 and the pitch teeth of the second lap portion 423 are offset in the tooth peak and tooth valley, so that the tooth peaks of the first lap portion 413 engage into the tooth valleys of the second lap portion 423, and the tooth valleys of the first lap portion 413 engage into the tooth peaks of the second lap portion 423. In this way, the relative positions of the first lap portion 413 and the second lap portion 423 are fixed, and the relative positions of the first partition 410 and the second partition 420 are prevented from being deviated, so as to avoid errors in the width of the pole piece coating region 10A or the tab covering area 10B.

[0066] In an embodiment, the partition extension portion 4X1 is provided with a partition extension hole 4X10.

[0067] In the present embodiment, the fixing member 30 is passed through the partition extension hole 4X10, one end of the fixing member 30 abuts against the partition extension portion 4X1, and the other end of the fixing member 30 is fixed to the die, so as to fix the partition adjustment assembly to the die. The fixing member 30 is, for example, a screw or a bolt.

[0068] Further, the first extension portion 411 is provided with a first extension hole 4110, and / or the second extension portion 421 is provided with a second extension hole 4210.

[0069] In this embodiment, the first separator is secured to the die by inserting the fixing member 30 through the first extension hole 4110, with one end of the fixing member 30 abutting the first extension portion 411 and the other end of the fixing member 30 being fixed to the die head. The second separator is secured to the die head by inserting the fixing member 30 through the second extension hole 4210, with one end of the fixing member 30 abutting the second extension portion 421 and the other end of the fixing member 30 being fixed to the die head. The first extension hole 4110 and the second extension hole 4210 constitute a separation extension hole 4X10.

[0070] like Figure 1 、 Figure 8 and Figure 9 As shown, in one embodiment, the extension line of the partition extension hole 4X10 and the extension line of the first end piece fixing hole 211 are located on the same straight line; and / or, the extension line of the partition extension hole 4X10 and the extension line of the second end piece fixing hole 311 are located on the same straight line.

[0071] In this embodiment, a bead 40 is provided on the die head, and a plurality of fixing holes are defined in the bead 40. The straight line extending from the partition extension hole 4X10 and the first end member fixing hole 211 is aligned with the extension line of the bead 40. The fixing member 30 passing through the partition extension hole 4X10 and the fixing member 30 passing through the first end member fixing hole 211 are respectively fixed to the fixing holes, thereby fixing the position of the partition extension portion 4X1 and the first end member fixing portion 210 relative to the bead 40, thereby fixing the relative positions of the first adjustment end member 200 and the partition adjustment assembly 400, and thereby fixing the width of the electrode coating area 10A. The bead 40 and the coating gasket are installed in the die head, for example, by installing the bead 40 in the mounting cavity of the upper die head. The fixing member 30 secures the coating gasket to the bead 40. A number of fixing members 30 pass through each partition extension hole 4X10, one end of the fixing member 30 abuts the side of the partition extension part facing away from the pressure strip 40, and the other end of the fixing member 30 is connected to the die head; a number of fixing members 30 pass through each first end member fixing hole 211, one end of the fixing member 30 abuts the side of the first end member fixing part 210 facing away from the pressure strip 40, and one end of the fixing member 30 is connected to the die head; a number of fixing members 30 pass through each second end member fixing hole 311, one end of the fixing member 30 abuts the side of the second end member fixing part 310 facing away from the pressure strip 40, and one end of the fixing member 30 is connected to the die head.

[0072] In one embodiment, the first adjustment end piece 200 includes a first end piece baffle portion 230 connected to the first end piece extension portion 220, the angle between the first end piece baffle portion 230 and the first end piece extension portion 220 is equal to the inclination angle C of the pole piece area 20A, a part of the pole piece coating area 10A is formed between the first end piece baffle portion 230 and the separation adjustment assembly 400, and the first end piece extension portion 220 extends to the side away from the separation adjustment area.

[0073] In the embodiment, the first end piece flow blocking part 230 blocks the flow of coating material to the area between the gasket base piece 100 and the first end piece flow blocking part 230. The end piece sliding groove 120 extends along the straight line in the width direction of the pole piece coating area, and the depth of the first end piece extending part 220 into the end piece sliding groove 120 is adjusted to adjust the distance between the first end piece flow blocking part 230 and the separation adjustment assembly, so as to adjust the width of the pole piece coating area 10A. Generally, the included angle between the first end piece flow blocking part 230 and the first end piece extending part 220 is 90 degrees to adapt to the coating requirements of the rectangular pole piece area 20A.

[0074] In an embodiment, the first adjustment end piece 200 comprises a first pressing part 240, the first end piece flow blocking part 230 and the first pressing part 240 are connected, the first end piece extending part 220 and the first pressing part 240 are arranged on the same side of the first end piece flow blocking part 230, the extending directions of the first end piece extending part 220 and the first pressing part 240 are the same, the first pressing part 240 abuts against the gasket base piece 100 outside the piece adjustment area, the first pressing part 240 is provided with a scale mark line, and the scale mark line of the first pressing part 240 extends along the straight line in the width direction of the pole piece coating area.

[0075] In the embodiment, the first end piece extending part 220 and the first pressing part 240 are respectively arranged on the side of the first end piece flow blocking part 230 away from the separation adjustment assembly 400, the first end piece extending part 220 and the first pressing part 240 are parallel, and part of the gasket base piece 100 is arranged between the first end piece extending part 220 and the first pressing part 240, so as to increase the static friction between the first adjustment end piece 200 and the gasket base piece 100, and make the connection between the first adjustment end piece 200 and the gasket base piece 100 more stable. The first pressing part 240 abuts against the gasket base piece 100 outside the piece adjustment area, and the first pressing part 240 abuts against the edge of the gasket base piece 100 outside, so as to facilitate observation of the scale mark line on the first pressing part 240. The first pressing part 240 can extend to a position protruding from the outside of the gasket base piece 100 along the straight line in the width direction of the pole piece coating area, so as to facilitate setting of a longer scale mark line and facilitate adjustment of the width of the pole piece coating area 10A in a larger range.

[0076] In an embodiment, the second adjustment end piece 300 comprises a second end piece flow blocking part 330 connected with the second end piece extending part 320, the included angle between the second end piece flow blocking part 330 and the second end piece extending part 320 is equal to the inclination angle C of the pole piece area 20A, the second end piece flow blocking part 330 and the separation adjustment assembly 400 form part of the pole piece coating area 10A, and the second end piece extending part 320 extends to the side away from the piece adjustment area.

[0077] In the embodiment, the second end piece flow blocking part 330 blocks the flow of coating material to the area between the gasket base piece 100 and the second end piece flow blocking part 330. The end piece sliding groove 120 extends along the straight line in the width direction of the pole piece coating area, and the depth of the second end piece extension part 320 into the end piece sliding groove 120 is adjusted to adjust the distance between the second end piece flow blocking part 330 and the separation adjustment assembly 400, thereby adjusting the width of the pole piece coating area 10A. Generally, the included angle between the second end piece flow blocking part 330 and the second end piece extension part 320 is 90 degrees to meet the coating requirements of the rectangular pole piece area 20A.

[0078] In an embodiment, the second adjustment end piece 300 includes a second pressing part 340, the second end piece flow blocking part 330 and the second pressing part 340 are connected, the second end piece extension part 320 and the second pressing part 340 are arranged on the same side of the second end piece flow blocking part 330, the extension directions of the second end piece extension part 320 and the second pressing part 340 are the same, the second pressing part 340 abuts against the gasket base piece 100 outside the separation adjustment area, the second pressing part 340 is provided with a scale mark line, and the scale mark line of the second pressing part 340 extends along the straight line in the width direction of the pole piece coating area.

[0079] In the embodiment, the second end piece extension part 320 and the second pressing part 340 are arranged on the side of the second end piece flow blocking part 330 away from the separation adjustment assembly 400, the second end piece extension part 320 and the second pressing part 340 are parallel, and part of the gasket base piece 100 is arranged between the second end piece extension part 320 and the second pressing part 340, thereby increasing the static friction between the second adjustment end piece 300 and the gasket base piece 100 and making the connection between the second adjustment end piece 300 and the gasket base piece 100 more stable. The second pressing part 340 abuts against the gasket base piece 100 outside the separation adjustment area, and the second pressing part 340 abuts against the edge of the gasket base piece 100 outside, thereby facilitating observation of the scale mark line on the second pressing part 340. The second pressing part 340 can extend to a position protruding outside the gasket base piece 100 along the straight line in the width direction of the pole piece coating area, thereby facilitating arrangement of a longer scale mark line and facilitating adjustment of the width of the pole piece coating area 10A in a larger range.

[0080] In the embodiment, the existing coating gasket cannot meet the quick switching of different coating widths and different tab width types, and the gasket meeting the process requirements needs to be made to meet the production. The utility model discloses a coating bottom sheet, 1 left adjusting sheet (i.e. first adjusting end piece), 1 right adjusting sheet (i.e. second adjusting end piece), 1 Z-shaped adjustable sheet (i.e. first separating piece) and 1 T-shaped adjustable sheet (i.e. second separating piece) are combined into middle blocking sheet, when there are multiple widths, multiple Z-shaped adjustable sheets and T-shaped adjustable sheets are combined into middle blocking sheet with the increase of width, the bottom sheet is combined with the left adjusting sheet, the right adjusting sheet and at least one Z-shaped adjustable sheet and at least one T-shaped adjustable sheet, and the bottom sheet, the left adjustable sheet, the right adjustable sheet, the Z-shaped adjustable sheet and the T-shaped adjustable sheet are all provided with spacing teeth, the accuracy of each spacing tooth is 0.5mm, the horizontal width can be adjusted according to different product requirements, the extrusion coating gasket can meet various coating widths, various tab widths and high adaptability. The production efficiency is improved, and the purchase cost of the extrusion gasket is reduced. The coating gasket can adapt to various coating widths and various tab width productions, has high applicability, reduces the gasket production cycle, improves the production efficiency, reduces the purchase frequency of the extrusion gasket and reduces the purchase cost of the extrusion gasket. The gasket combination structure is more firm, the coating width and tab width size adjustment accuracy are more accurate, and the coating width and tab width combination types are more extensive.

[0081] In the embodiment, the gasket structure is composed of a bottom sheet (i.e. gasket base piece 100), a left adjustable sheet (i.e. first adjusting end piece 200), a right adjustable sheet (i.e. second adjusting end piece 300), a Z-shaped adjustable sheet (i.e. first separating piece 410), a T-shaped adjustable sheet (i.e. second separating piece 420), spacing teeth, lines, left and right guide grooves, Z-shaped and T-shaped adjustable sheet guide grooves and guide plates (i.e. first end piece extension 220 / second end piece extension 320).

[0082] In the embodiment, the coating gasket is composed of at least two left and right guide grooves (i.e. end piece sliding groove 120) and at least one or more Z-shaped and T-shaped adjustable sheet guide grooves (i.e. separating piece sliding groove 110), and spacing teeth are arranged on the upper and lower sides of each guide groove, and the distance between each spacing tooth is 0.5mm. The left adjustable sheet (i.e. first adjusting end piece 200) and the right adjustable sheet (i.e. second adjusting end piece 300) are in the shape of a whole U, have guide plates (i.e. first end piece extension 220 / second end piece extension 320), and the guide plates have spacing teeth on the upper and lower sides, and the distance between the spacing teeth is 0.5mm. The guide plates are matched with the left and right guide grooves on the bottom sheet.

[0083] In the embodiment, the Z-shaped adjustable sheet (i.e. first separating piece 410) is provided with spacing teeth and lines on the upper and lower sides.

[0084] In the embodiment, the T-shaped adjustable sheet (i.e. second adjusting end piece 300) is provided with spacing teeth and lines on the upper and lower sides.

[0085] In the present embodiment, the left adjustable piece (i.e. the first adjustment end piece 200) and the right adjustable piece (i.e. the second adjustment end piece 300) are respectively installed in the left and right guide grooves (i.e. the end piece sliding groove 120) of the bottom piece, and the coating width can be adjusted by adjusting the distance between the left and right adjustable pieces (i.e. the first adjustment end piece 200 and the second adjustment end piece 300). The adjusted distance can be understood by the scale lines on the left and right adjustable pieces (i.e. the first adjustment end piece 200 and the second adjustment end piece 300). The Z-shaped adjustable piece (i.e. the first separation piece 410) and the T-shaped adjustable piece (i.e. the second separation piece 420) are combined and installed in the Z-shaped and T-shaped adjustable piece guide groove (i.e. the separation piece sliding groove 110) of the bottom piece, and the size of the center tab can be adjusted by adjusting the distance between the upper and lower distance teeth of the Z-shaped adjustable piece (i.e. the first separation piece 410) and the T-shaped adjustable piece (i.e. the second separation piece 420).

[0086] Referring to Figure 4 In the present embodiment, the width of the tab 2 is adjusted, and the Z-shaped block (i.e. the first separation piece 410) and the T-shaped block (i.e. the second separation piece 420) are closely combined, and the width is for example 50 mm, and the center is placed in the guide groove position of the bottom piece tab. When the current tab width is required to be changed to 55 mm, there are two methods for adjusting the width of the tab as follows: Method 1: the Z-shaped adjustable block is moved 2.5 mm to the left and the T-shaped adjustable block is moved 2.5 mm to the right, so that the tab width of 55 mm is achieved. Method 2: the Z-shaped adjustable block is moved 5 mm to the left or the T-shaped adjustable block is moved 5 mm to the right, so that the tab width of 55 mm is achieved. The same applies to the tabs 1 and 3.

[0087] Referring to Figure 4In this embodiment, the width of the coating width 2 (i.e. the pole piece area 20A corresponding to the pole piece 2) is adjusted, the Z-type adjustable block corresponding to the tab 2 (i.e. the first partition 410 corresponding to the tab 2) is taken as the reference, the T-type adjustable block corresponding to the tab 1 (i.e. the second partition 420 corresponding to the tab 1) is adjusted, and the width of the coating width is adjusted to the left or to the right. The Z-type adjustable block corresponding to the tab 1 (i.e. the first partition 410 corresponding to the tab 1) is adjusted, and the tab width of the tab 1 is obtained. The T-type adjustable block corresponding to the tab 1Z (i.e. the first partition 410 corresponding to the tab 1) is adjusted to the left or to the right, and the width of the coating width 1 is adjusted. The width of the coating width 1 (i.e. the pole piece area 20A corresponding to the pole piece 1) can be obtained. The T-type adjustable block corresponding to the tab 3 (i.e. the second partition 420 corresponding to the tab 3) is adjusted to the left or to the right, and the width of the coating width 3 (i.e. the pole piece area 20A corresponding to the pole piece 3) is obtained. The Z-type adjustable block corresponding to the tab 3 (i.e. the first partition 410 corresponding to the tab 3) is adjusted to the left or to the right, and the tab width of the tab 3 (i.e. the tab area 20B corresponding to the tab 3) is obtained. The T-type adjustable block corresponding to the tab 3 (i.e. the second partition 420 corresponding to the tab 3) is adjusted to the left or to the right, and the width of the coating width 4 (i.e. the pole piece area 20A corresponding to the pole piece 4) is obtained. In addition, the number of coating widths can also be customized according to requirements. The Z-type and T-type adjustable blocks (partition adjustment assembly 400) at the tabs 1 and 3 can be removed and not installed, and the four coating widths can be changed to two coating widths. All adjustable blocks and the bottom piece are placed and installed on the upper die of the coating die after being combined.

[0088] In this embodiment, the pitch of the pitch teeth is 0.5 mm, and the width can be determined according to the number of moving pitch teeth.

[0089] Referring to Figure 2 In this embodiment, the Z-type and T-type adjustable blocks are combined, and the area where the coating is not sprayed forms the tab. After the slurry is fed from the die inlet 1, it is sprayed from the areas at positions 2, 3, 4 and 5 to form the pole piece.

[0090] Referring to Figure 3 The slurry is fed from the inlet 1 into the large cavity of the die, and after the large cavity of the die is filled with the slurry, the slurry enters the small cavity of the die. After the small cavity is filled, the slurry is sprayed from the coating areas of the pole pieces 1, 2, 3 and 4.

[0091] Embodiment Two

[0092] Referring to Figures 2 to 4 In this embodiment, a coating device is provided, which comprises at least two dies and the coating gasket of any one of the above embodiments, and the coating gasket is arranged between the two dies.

[0093] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not contradict each other, they should be considered to be within the scope of the present disclosure.

[0094] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A coated gasket, characterized by, The spacer base, the first adjusting end piece, the second adjusting end piece and the plurality of partition adjusting components, the spacer base is provided with a sub-piece adjusting area, the first adjusting end piece is movably arranged on one side of the sub-piece adjusting area, the second adjusting end piece is movably arranged on the other side of the sub-piece adjusting area, the partition adjusting components are movably arranged between the first adjusting end piece and the second adjusting end piece, the partition adjusting components form a part of the tab coating area between the first adjusting end piece and the second adjusting end piece respectively, and at least one of the first adjusting end piece, the second adjusting end piece and the partition adjusting components can adjust the position to change the width of the tab coating area. The partition adjusting components are arranged along the straight line in the width direction of the tab coating area, and a part of the tab coating area is formed between the adjacent two partition adjusting components.

2. The coated gasket of claim 1, wherein, The spacer base is provided with a partition piece sliding groove extending along the straight line in the width direction of the tab coating area, the partition adjusting component includes a partition extending part and a coating flow blocking part connected with each other, the partition extending part is movably arranged in the partition piece sliding groove, and the coating flow blocking part is arranged between the first adjusting end piece and the second adjusting end piece and forms the tab coating area between the first adjusting end piece and the second adjusting end piece respectively.

3. The coated gasket of claim 1, wherein, The partition adjusting component includes a first partition piece and a second partition piece movably arranged between the first adjusting end piece and the second adjusting end piece respectively, the first partition piece and the second partition piece adjust the position on the straight line in the width direction of the tab coating area, and the tab coating area is formed between the first partition piece and the second partition piece.

4. The coated gasket of claim 1, wherein, The first partition piece includes a first extending part and a first flow blocking part connected with each other, the second partition piece includes a second extending part and a second flow blocking part connected with each other, the first extending part and the second extending part are movably arranged between the first adjusting end piece and the second adjusting end piece respectively, the first flow blocking part and the second flow blocking part are arranged between the first adjusting end piece and the second adjusting end piece respectively, and the tab coating area is formed between the first flow blocking part and the second flow blocking part.

5. The coated gasket of claim 4, wherein, The spacer base is provided with a partition piece sliding groove extending along the straight line in the width direction of the tab coating area, and the first extending part and the second extending part belonging to the same partition adjusting component are movably arranged in the same partition piece sliding groove respectively.

6. The coated gasket of claim 5, wherein, The first partition piece includes a first lap part, the second partition piece includes a second lap part, the first lap part extends to the second partition piece, the second lap part extends to the first partition piece, and the first lap part and the second lap part abut.

7. The coated gasket of claim 4, wherein, ​ 8. The coated gasket of claim 1, wherein, The gasket base is provided with a plurality of end piece sliding grooves, the end piece sliding grooves extend along a straight line where the width direction of the pole piece coating area is located, the first adjusting end piece is provided with a first end piece extension part, the first end piece extension part is movably arranged in one of the end piece sliding grooves, the second adjusting end piece is provided with a second end piece extension part, and the second adjusting end piece is movably arranged in another of the end piece sliding grooves.

9. The coated gasket of claim 1, wherein, The first adjusting end piece is provided with a first end piece fixing part, the first end piece fixing part is provided with a first end piece fixing hole, the second adjusting end piece is provided with a second end piece fixing part, and the second end piece fixing part is provided with a second end piece fixing hole.

10. A coating apparatus characterized by comprising: The coating gasket comprises at least two die heads and the coating gasket according to any one of claims 1 to 9, and the coating gasket is arranged between the two die heads.

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