Coating gasket and coating equipment

Abstract

The invention provides a coating gasket and coating equipment, a gasket base part is arranged between a first die head and a second die head of the coating equipment, and the gasket base part is provided with a part dividing adjusting area used for arranging the positions of a first adjusting end part, a second adjusting end part and a plurality of dividing adjusting assemblies. 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 invention relates to the technical field of battery manufacturing, and in particular to a coating gasket and a coating device. Background Art

[0002] At present, coating is an important link in the battery production process. During the research and development, trial production and mass production stages, products with different coating widths and different lug widths such as one-out-two, one-out-four, one-out-eight, and one-out-twelve will be produced. The coating width mainly depends on the width of the coating opening of the coating gasket. The lug width depends on the width of the baffle in the middle of the coating gasket. The existing coating gasket is an integral structure. For pole pieces of different widths and lugs of different widths, different extrusion gaskets need to be replaced during coating to achieve the coating width and lug width that are consistent with the process design. During coating, the opening width of the extrusion gasket also needs to be adjusted according to the slurry with different viscosities, solid contents, and rheological properties to achieve the expected coating width and thinning requirements. Therefore, it is necessary to prepare a variety of coating gaskets with different opening widths and different diversion styles to meet the requirements of different coating processes.

[0003] However, the production cycle of coated gaskets is long. When adapting to different coating requirements, it will extend the production time and production cycle, reduce production efficiency and increase costs. Summary of the invention

[0004] Based on this, it is necessary to provide a coating gasket and coating equipment to address the above technical problems.

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

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

[0007] In one embodiment, the gasket base is provided with a separator slide groove, and the separator slide groove extends along a straight line in the width direction of the pole piece coating area. The separator adjustment component includes a separator extension part and a paint flow blocking part connected to each other, and the separator extension part is movably arranged in the separator slide groove, and the paint flow blocking part is arranged between the first adjustment end piece and the second adjustment end piece, and the pole piece coating area is formed between the paint flow blocking part and the first adjustment end piece and the second adjustment end piece respectively.

[0008] In one embodiment, the partition adjustment member includes a first partition and a second partition, the first partition and the second partition are respectively movably arranged between the first adjustment end member and the second adjustment end member, the first partition and the second partition adjust their positions on a straight line in the width direction of the pole piece coating area, and a pole ear covering area is formed between the first partition and the second partition.

[0009] In one of the embodiments, the first separator includes a first extension portion and a first baffle portion connected to each other, and the second separator includes a second extension portion and a second baffle portion connected to each other, the first extension portion and the second extension portion are respectively movably arranged between the first adjustment end piece and the second adjustment end piece, the first baffle portion and the second baffle portion are respectively arranged between the first adjustment end piece and the second adjustment end piece, and a pole piece coating area is formed between the first baffle portion and the second baffle portion.

[0010] In one of the embodiments, the gasket base is provided with a separator slide groove, and the separator slide groove extends along a straight line where the width direction of the pole piece coating area is located, and the first extension part and the second extension part belonging to the same separator adjustment component are respectively movably arranged in the same separator slide groove.

[0011] In one embodiment, the first partition includes a first overlapping portion, the second partition includes a second overlapping portion, the first overlapping portion extends toward the second partition, the second overlapping portion extends toward the first partition, and the first overlapping portion and the second overlapping portion abut against each other.

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

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

[0014] A coating device comprises: at least two die heads and a coating gasket as described in any one of the above embodiments, wherein the coating gasket is arranged between the two die heads.

[0015] In the above-mentioned coating gasket and coating equipment, the gasket base is arranged between the first die head and the second die head of the coating equipment, and the divided piece adjustment area provided on the gasket base is used to arrange the positions of the first adjustment end piece, the second adjustment end piece and a plurality of separation adjustment components. The first adjustment end piece is movably arranged on one side of the divided piece adjustment area, and the second adjustment end piece is movably arranged on the other side of the divided piece adjustment area, and a coating working area is formed between the first adjustment end piece and the second adjustment end piece. At least one of the first adjustment end piece, the second adjustment end piece and the separation adjustment component can adjust its position to change the width of the electrode coating area. The separation adjustment component is used to cover the pole ear to prevent the coating from flowing into the pole ear covered by the separation adjustment component. The separation adjustment component is movably arranged between the first adjustment end piece and the second adjustment end piece, and a pole piece coating area is formed between the separation adjustment component and the first adjustment end piece and the second adjustment end piece respectively. The first adjustment end piece, the second adjustment end piece and at least one of the separation adjustment components adjust their positions on a straight line where the width direction of the pole piece coating area is located, thereby adjusting the pole piece coating area so that the width of the pole piece coating area meets the coating requirements, and there is no need to make a coating gasket separately, thereby reducing production time and production cycle, improving production efficiency and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a coating gasket in one embodiment;

[0017] Figure 2 A schematic diagram of the structure of a coating device in one embodiment;

[0018] Figure 3 Another schematic diagram of the structure of a coating device in one embodiment;

[0019] Figure 4 Another structural schematic diagram of a coating gasket in one embodiment;

[0020] Figure 5 is a schematic structural diagram of a first adjustment end piece in an embodiment;

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

[0022] Figure 7 A schematic diagram of the structure of a separation and adjustment component in one embodiment;

[0023] Figure 8 is a schematic diagram of the application of a coating gasket in an embodiment;

[0024] Fig. 9 Another application schematic diagram of a coated gasket in one embodiment.

[0025] Figure numerals: 100, gasket base; 110, partition member slide; 120, end member slide; 200, first adjustment end member; 210, first end member fixing portion; 211, first end member fixing hole; 220, first end member extension; 230, first end member baffle; 240, first pressing portion; 300, second adjustment end member; 310, second end member fixing portion; 311, second end member fixing hole; 320, second end member extension; 330, second end member baffle; 340, second pressing portion; 400, partition adjustment assembly; 410, first partition Part; 411, first extension part; 4110, first extension hole; 412, first baffle part; 413, first overlap part; 420, second partition; 421, second extension part; 4210, second extension hole; 422, second baffle part; 423, second overlap part; 4X1, partition extension part; 4X2, coating baffle part; 4X10, partition extension hole; 10A, pole piece coating area; 10B, pole ear covering area; 20, substrate; 20A, pole piece area; C, tilt angle; 20B, pole ear area; 30, fixing part; 40, pressure strip. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] At present, coating is an important link in the battery production process. During the research and development, trial production and mass production stages, products with different coating widths and different pole ear widths such as one-out-two, one-out-four, one-out-eight, and one-out-twelve will be produced. The coating width mainly depends on the width of the coating opening of the coating gasket; the middle pole ear width depends on the width of the middle baffle of the gasket. The existing extrusion gasket is an integral structure. For pole pieces of different widths and pole ear widths, different extrusion gaskets need to be replaced during coating to achieve the coating width and pole ear width that are consistent with the process design, and the opening width of the extrusion gasket needs to be adjusted according to the slurry with different viscosities, solid contents, and rheological properties to achieve the expected coating width and thinning requirements. Therefore, it is necessary to prepare a variety of coating gaskets with different opening widths and different diversion styles to meet the requirements of different coating processes, and the gasket production cycle is long, which results in the extension of production time and production cycle, reduces production efficiency, and greatly increases the number and cost of gasket production.

[0028] Embodiment 1

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

[0030] In this embodiment, the gasket base member 100 is disposed between two die heads of the coating equipment, and the gasket base member 100 is provided with a split-piece adjustment area, and the split-piece adjustment area is disposed between the two die heads of the coating equipment, and the coating of the die head flows to the split-piece adjustment area. The first adjustment end member 200 is movably disposed on one side of the split-piece adjustment area, and the second adjustment end member 300 is movably disposed on the other side of the split-piece adjustment area. The width between the first adjustment end member 200 and the second adjustment end member 300 is the maximum width that can be coated in the split-piece adjustment area. The separation adjustment component 400 is movably disposed between the first adjustment end member 200 and the second adjustment end member 300, and the substrate 20 is disposed between the first adjustment end member 200 and the second adjustment end member 300. The coating flowing out of the die head is coated on the substrate 20, and the area of ​​the substrate 20 covered with the coating layer forms the pole piece area 20A, and the area of ​​the substrate 20 not covered with the coating layer forms the pole ear area 20B. The separated component adjustment area is divided into a pole piece coating area 10A and a pole lug covering area 10B. The pole lug covering area 10B is the area where the separation adjustment component 400 is located. The separation adjustment component 400 covers the pole lug area 20B to be formed on the substrate 20. During the coating process, the separation adjustment component 400 blocks the coating from flowing into the pole lug area 20B to be formed on the substrate 20, so that the area is not covered with the coating layer, and the pole lug area 20B is formed after the coating is completed. The coating from the die head flows to the coating area, and the coating flows to the pole piece area 20A to be formed on the substrate 20 above or below the coating area, so that the area is covered with the coating layer, and the pole piece area 20A is formed after the coating is completed. The straight line where the first adjustment end piece 200 and the second adjustment end piece 300 are located is the straight line where the width direction of the pole piece coating area is located, and the extension direction of the straight line where the width direction of the pole piece coating area is located is the same as the extension direction of the straight line where the width direction of the pole piece coating area 10A is located, for example Figure 1The extension direction between the left and right sides shown in . The width direction of the pole ear region 20B and the width direction of the pole piece region 20A are both on the straight line where the width direction of the pole piece coating region is located. A part of the pole piece coating region 10A is formed between the separation adjustment component 400 and the first adjustment end piece 200, and a part of the pole piece coating region 10A is also formed between the separation adjustment component 400 and the second adjustment end piece 300. By adjusting the position of any one of the separation adjustment component 400, the first adjustment end piece 200 and the second adjustment end piece 300 on the straight line where the width direction of the pole piece coating region is located, the width of the pole piece coating region 10A can be adjusted. For example, when the separation adjustment component 400 and the first adjustment end piece 200 are close to each other on the straight line where the width direction of the pole piece coating region is located, the width of the pole piece coating region 10A between the separation adjustment component 400 and the first adjustment end piece 200 becomes smaller, and then the width of the pole piece region 20A formed on the substrate 20 becomes smaller. For the width of the pole lug area 20B formed on the substrate 20, several separation adjustment components 400 can be spliced ​​along the straight line where the width direction of the pole piece coating area is located; or a separation adjustment component 400 formed by a combination of two split bodies adjusted on the straight line where the width direction of the pole piece coating area is located can be used to separately adjust the width of the pole lug covering area 10B, and the pole lug covering area 10B is formed between the two split bodies. The spacing between the two split bodies on the straight line where the width direction of the pole piece coating area is located is adjusted to adjust the width of the pole lug covering area 10B, thereby adjusting the width of the pole lug area 20B.

[0031] In this embodiment, the gasket base member 100 is disposed between the first die head and the second die head of the coating device, and the divided-piece adjustment area provided on the gasket base member 100 is used to arrange the positions of the first adjustment end member 200, the second adjustment end member 300 and a plurality of separation adjustment components 400. The first adjustment end member 200 is movably disposed on one side of the divided-piece adjustment area, and the second adjustment end member 300 is movably disposed on the other side of the divided-piece adjustment area, and a coating working area is formed between the first adjustment end member 200 and the second adjustment end member 300. The extension direction of the first adjustment end piece 200 and the second adjustment end piece 300 is the straight line where the width direction of the electrode coating area is located. At least one of the first adjustment end piece 200, the second adjustment end piece 300 and the separation adjustment assembly 400 adjusts the position along the straight line where the width direction of the electrode coating area is located. The first adjustment end piece 200, the second adjustment end piece 300 and the separation adjustment assembly 400 can be moved from the side close to the first adjustment end piece 200 to the side close to the second adjustment end piece 300 to adjust the position, or from the side close to the second adjustment end piece 300 to the side close to the first adjustment end piece 200 to adjust the position, thereby adjusting the width of the coating working area. The separation adjustment assembly 400 is used to cover the pole ear and prevent the coating from flowing into the pole ear covered by the separation adjustment assembly 400. The separation adjustment component 400 is movably 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 separation adjustment component 400 and the first adjustment end piece 200 and the second adjustment end piece 300 respectively. The first adjustment end piece 200, the second adjustment end piece 300 and at least one of the separation adjustment component 400 adjust their positions on a straight line where the width direction of the pole piece coating area is located, so that the pole piece coating area 10A can be adjusted so that the width of the pole piece coating area 10A meets the coating requirements, and there is no need to make a coating gasket separately, thereby reducing production time and production cycle, improving production efficiency and reducing costs.

[0032] like Figure 1 As shown, in one embodiment, each of the separation adjustment components 400 is arranged at intervals along a straight line in the width direction of the pole piece coating area 10A, and a portion of the pole piece coating area 10A is formed between two adjacent separation adjustment components 400.

[0033] In this embodiment, the separation adjustment components 400 are arranged at intervals along the straight line where the width direction of the pole piece coating area 10A is located, that is, they are arranged at intervals along the straight line where the width direction of the pole piece coating area where the first adjustment end piece 200 and the second adjustment end piece 300 are located. A part of the pole piece coating area 10A is formed between adjacent separation adjustment components 400, a part of the pole piece coating area 10A is formed between the separation adjustment component 400 closest to the first adjustment end piece 200 and the first adjustment end piece 200, and a part of the pole piece coating area 10A is formed between the separation adjustment component 400 closest to the second adjustment end piece 300 and the second adjustment end piece 300, so a part of the pole piece coating area 10A can be formed at different positions of 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 pole piece 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 portion 4X1 and a paint blocking portion 4X2, and the separator extension portion 4X1 is movably arranged in the separator slide groove 110, and the paint blocking portion 4X2 is arranged between the first adjustment end piece 200 and the second adjustment end piece 300, and the paint blocking portion 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 component 400 includes a separation extension portion 4X1 and a coating baffle portion 4X2 connected to each other, the separation extension portion 4X1 extends along a straight line in the width direction of the electrode coating area, and the extension line of the coating baffle portion 4X2 forms an angle with the extension line of the separation extension portion 4X1, which is the same as the inclination angle C of the electrode area 20A on the substrate 20, and 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 in the width direction. When the electrode area 20A is a rectangle, the inclination angle C of the electrode area 20A is 90 degrees, and at this time, the extension line of the separation extension portion 4X1 is perpendicular to the extension line of the coating baffle portion 4X2. The paint baffle 4X2 is arranged between the first adjustment end piece 200 and the second adjustment end piece 300, and the paint baffles 4X2 of different separation adjustment components 400 form a part of the pole piece coating area 10A, the first adjustment end piece 200 and the paint baffle 4X2 closest to it form a part of the pole piece coating area 10A, and the second adjustment end piece 300 and the paint baffle 4X2 closest to it form a part of the pole piece coating area 10A. The gasket base 100 is arranged on a separator chute 110 extending along a straight line in the width direction of the pole piece coating area, and the width of the separator chute 110 on the straight line in the width direction of the pole piece coating area is greater than the width of the separator chute 110 on the straight line in the width direction of the pole piece coating area, and the separation extension 4X1 is movably arranged on the separator chute 110. By adjusting the position of the partition extension 4X1 in the partition chute 110, the position of the paint baffle 4X2 on the straight line in the width direction of the pole piece coating area is adjusted, and then the spacing between the paint baffles 4X2 of different partition adjustment components 400, the spacing between the first adjustment end piece 200 and the paint baffle 4X2 closest to it, and the spacing between the second adjustment end piece 300 and the paint baffle 4X2 closest to it are adjusted, so as to adjust the width of the pole piece coating area 10A at different positions. For each partition adjustment component 400, a partition chute 110 is set, and the partition extension 4X1 of each partition adjustment component 400 is movably set in a partition chute 110.

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

[0037] In this embodiment, each separation adjustment member includes a first separation member 410 and a second separation member 420, which are respectively movably arranged between the first adjustment end member 200 and the second adjustment end member 300, and a portion of the tab covering 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 tab 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, and a portion of the tab 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 partial tab covering 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 baffle 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 baffle portion 412 intersects with the extension line of the first extension portion 411, and the angle formed between the extension line of the first baffle 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 baffle 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 baffle portion 422 intersects with the extension line of the second extension portion 421, and the angle formed between the extension line of the second baffle 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 in the width direction of the electrode coating area, and the first baffle 412 and the second baffle 422 are adjusted in a straight line in the width direction of the electrode coating area accordingly. The first baffle 412 and the second baffle 422 are parallel to each other, and a part of the electrode tab covering area 10B is formed between the first baffle 412 and the second baffle 422 belonging to the same partition adjustment member, and a part of the electrode tab coating area 10A is formed between the first baffle 412 and the second baffle 422 belonging to different partition adjustment members. The spacing between the first baffle 412 and the second baffle 422 under the same partition adjustment member is adjusted, thereby adjusting the width of the electrode tab covering area 10B at this position. The partition extension 4X1 includes the first extension 411 of the first partition 410 and the second extension 421 of the second partition 420, and the coating baffle 4X2 includes the first baffle 412 of the first partition 410 and the second baffle 422 of the second partition 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 separator 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 member 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 width of the tab coverage area 10B to be smaller.

[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 overlap portion 413 extends along the straight line where the width direction of the electrode coating area is located, the second overlap portion 423 extends along the straight line where the width direction of the electrode coating area is located, and the first overlap portion and the second overlap portion 423 are parallel. When the relative positions of the first separator 410 and the second separator 420 change, the first overlap portion and the second overlap portion 423 support each other, so that the relative positions of the first overlap portion and the second overlap portion 423 are 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 where the width direction of the electrode coating area is located.

[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 where the width direction of the electrode coating area is located.

[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 overlap portion 413 is arranged at one end of the first baffle portion 412, and the first extension portion 411 is arranged at the other end of the first baffle portion 412, the first overlap portion 413 extends toward the second partition 420, and the first extension portion 411 extends toward the side away from the second partition 420, and the first overlap portion 413 abuts against one side of the second baffle portion 422 toward one side of the second partition 420; the second overlap portion 423 is arranged between the two ends of the second baffle portion 422, and the second extension portion 421 is arranged at the second baffle portion 422 At one end close to the first extension portion 411, the second overlapping portion 423 extends toward the first partition 410, and the second extension portion 421 extends toward the side away from the first partition 410, and the second overlapping portion 423 abuts against one side of the first baffle portion 412 toward the side of the first partition 410; the partition slide 110 is arranged at the bottom of the partition adjustment area, the first extension portion 411 and the second extension portion 421 are respectively movably arranged on the partition slide 110, and the opposite sides of the first extension portion 411 respectively abut against the groove wall of the partition slide 110, and the opposite sides of the second extension portion 421 respectively abut against the groove wall of the partition slide 110, and the first overlapping portion 413 abuts against the second overlapping portion 423 toward the side of the partition slide 110.

[0049] In this embodiment, the separator chute 110 is arranged at the bottom of the partition adjustment area and extends on the straight line in the width direction of the pole piece coating area. A slot is provided at the top of the separator chute 110, and the first baffle 412 and the second baffle 422 extend into the partition adjustment area through the slot, and the first baffle 412 and the second baffle 422 adjust their positions in the slot. The top wall of the slot top on one side of the slot abuts the first extension 411, and the top wall of the slot top on the other side of the slot abuts the second extension 421. The bottom wall of the slot bottom of the separator chute 110 abuts the first extension 411 and the second extension 421, respectively, and the first extension 411 and the second extension 421 adjust their positions in 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 part of the 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 part of the 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 overlap portion 423 extends toward the first partition 410, and the second overlap portion 423 abuts against the intersection between the first overlap portion 413 and the first baffle portion 412. The second overlap portion 423 abuts against the first baffle portion 412 on one side of the first partition 410, and the top of the second overlap portion 423 abuts against the bottom of the first overlap portion 413. Thus, between the first baffle portion 412 and the second baffle portion 422, the first overlap portion 413 and the second overlap portion 423 abut against each other on three different planes, and support each other, so that when the position is adjusted, the first overlap portion 413 and the second overlap portion 423 are more stable. Outside the first baffle portion 412 and the second baffle portion 422, the first extension portion 411 and the second extension portion 421 are respectively arranged between the top and the bottom of the partition chute 110, so that the first extension portion 411 and the second extension portion 421 are more stable when the position is adjusted in the partition chute 110.

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

[0051] In this embodiment, end piece chutes 120 are respectively provided on opposite sides of the split piece adjustment region, the end piece chutes 120 where the first end piece extension 220 is located extend in the direction from the second adjustment end piece 300 to the first adjustment end piece 200, and the end piece chutes 120 where the second end piece extension 320 is located extend in the direction from the first adjustment end piece 200 to the second adjustment end piece 300. The depth of the first end piece extension 220 and / or the second end piece extension 320 penetrating into the end piece chutes 120 is adjusted, and the position of the straight line where the first adjustment end piece 200 / the second adjustment end piece 300 is located in the width direction of the pole piece coating region is adjusted, thereby adjusting the width of the pole piece coating region 10A between the first adjustment end piece 200 / the second adjustment end piece 300 and the split adjustment assembly 400.

[0052] like Figure 1 As shown, in one embodiment, the first adjusting end piece 200 is provided with a first end piece fixing portion 210, and the first end piece fixing portion 210 is provided with a first end piece fixing hole 211, and the second adjusting end piece 300 is provided with a second end piece fixing portion 310, and the second end piece fixing portion 310 is provided with a second end piece fixing hole 311.

[0053] In this embodiment, the first end piece fixing portion 210 is arranged in the divided piece adjustment area, the first end piece fixing portion 210 extends on a straight line where the width direction of the pole piece coating area is located, and the second end piece fixing portion 310 extends on a straight line where the width direction of the pole piece coating area is located. The first end piece fixing hole 211 extends on a straight line where the width direction of the pole piece coating area is located, and the second end piece fixing hole 311 extends on a straight line where the width direction of the pole piece coating area is located. When the first adjustment end piece 200 / the second adjustment end piece 300 is adjusted on a straight line where the width direction of the pole piece coating area is located, the first end piece fixing portion 210 / the second end piece fixing portion 310 is adjusted on a straight line where the width direction of the pole piece coating area is located. When the positions of the first end piece fixing portion 210 and the second end piece fixing portion 310 are adjusted, the first end piece fixing portion 210 and the second end piece fixing portion 310 are fixed to the die head by the fixing member 30, and the fixing member 30 is such as a screw, a bolt, a screw, etc. The fixing member 30 passes through the first end member fixing hole 211, one end of the fixing member 30 abuts against the first end member fixing portion 210, and the other end of the fixing member 30 is fixed to the die head; the fixing member 30 passes through the second end member fixing hole 311, one end of the fixing member 30 abuts against the second end member fixing portion 310, and the other end of the fixing member 30 is fixed to the die head, thereby fixing the first adjustment end member 200 and the second adjustment end member 300 by different fixing members 30.

[0054] like 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 groove 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 meshed with the spacing teeth on the top side of the end piece slide groove 120, and the spacing teeth on the bottom side of the first end piece extension 220 are meshed with the spacing teeth on the bottom side of the end piece slide groove 120.

[0055] In this embodiment, when adjusting the position of the first end piece extension 220 on the straight line where the width direction of the pole piece coating area is located, after determining the position of the first end piece extension 220 according to the width of the coating area, the pitch teeth of the first end piece extension 220 and the pitch teeth of the end piece slide 120 are staggered in tooth peaks and tooth valleys, so that when the first end piece extension 220 is placed into the end piece slide 120, the tooth peaks of the first end piece extension 220 are meshed into the tooth valleys of the end piece slide 120, and the tooth valleys of the first end piece extension 220 are meshed into the tooth peaks of the end piece slide 120. Thus, the relative positions of the first end piece extension 220 and the end piece slide 120 are fixed, so as to avoid the first end piece extension 220 from being offset, resulting in an error in the width of the pole piece coating area 10A.

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

[0057] In this embodiment, when adjusting the position of the second end piece extension 320 on the straight line where the width direction of the pole piece coating area is located, after determining the position of the second end piece extension 320 according to the width of the coating area, the pitch teeth of the second end piece extension 320 and the pitch teeth of the end piece slide 120 are staggered in tooth peaks and tooth valleys, so that when the second end piece extension 320 is placed into the end piece slide 120, the tooth peaks of the second end piece extension 320 are meshed into the tooth valleys of the end piece slide 120, and the tooth valleys of the second end piece extension 320 are meshed into the tooth peaks of the end piece slide 120. Thus, the relative positions of the second end piece extension 320 and the end piece slide 120 are fixed, so as to avoid the second end piece extension 320 from being offset, resulting in an error in the width of the pole piece coating area 10A.

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

[0059] In this embodiment, when adjusting the position of the partition extension 4X1 on the straight line where the width direction of the electrode coating area is located, 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 separator chute 110 are staggered in the tooth peaks and tooth valleys, so that when the partition extension 4X1 is placed into the separator chute 110, the tooth peaks of the partition extension 4X1 are meshed into the tooth valleys of the separator chute 110, and the tooth valleys of the partition extension 4X1 are meshed into the tooth peaks of the separator chute 110. As a result, the relative positions of the partition extension 4X1 and the separator chute 110 are fixed, avoiding the displacement of the partition extension 4X1, resulting in errors in the width of the electrode coating area 10A or the pole lug covering area 10B.

[0060] Furthermore, the top and bottom sides of the first extension portion 411 are respectively provided with spacing teeth, and the top and bottom sides of the partition slide groove 110 are respectively provided with spacing teeth, the spacing teeth on the top side of the first extension portion 411 are meshed with the spacing teeth on the top side of the partition slide groove 110, and the spacing teeth on the bottom side of the first extension portion 411 are meshed with the spacing teeth on the bottom side of the partition slide groove 110.

[0061] In this embodiment, when adjusting the position of the first extension 411 on the straight line where the width direction of the pole piece coating area is located, 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 separator chute 110 are staggered in the tooth peaks and tooth valleys, so that when the first extension 411 is placed in the separator chute 110, the tooth peaks of the first extension 411 are engaged with the tooth valleys of the separator chute 110, and the tooth valleys of the first extension 411 are engaged with the tooth peaks of the separator chute 110. As a result, the relative positions of the first extension 411 and the separator chute 110 are fixed, avoiding the first extension 411 from being offset, resulting in errors in the width of the pole piece coating area 10A or the pole lug covering area 10B.

[0062] Furthermore, the top side and bottom side of the second extension portion 421 are respectively provided with spacing teeth, and the top side and bottom side of the partition slide groove 110 are respectively provided with spacing teeth, the spacing teeth on the top side of the second extension portion 421 are meshed with the spacing teeth on the top side of the partition slide groove 110, and the spacing teeth on the bottom side of the second extension portion 421 are meshed with the spacing teeth on the bottom side of the partition slide groove 110.

[0063] In this embodiment, when adjusting the position of the second extension 421 on the straight line where the width direction of the pole piece coating area is located, after determining the position of the second extension 421 according to the width of the coating area, the pitch teeth of the second extension 421 and the pitch teeth of the separator chute 110 are staggered in the tooth peaks and tooth valleys, so that when the second extension 421 is placed in the separator chute 110, the tooth peaks of the second extension 421 are meshed into the tooth valleys of the separator chute 110, and the tooth valleys of the second extension 421 are meshed into the tooth peaks of the separator chute 110. As a result, the relative positions of the second extension 421 and the separator chute 110 are fixed, avoiding the second extension 421 from being offset, resulting in errors in the width of the pole piece coating area 10A or the pole lug covering area 10B.

[0064] In one embodiment, the first overlapping portion 413 is provided with spacing teeth, and the second overlapping portion 423 is provided with spacing teeth, and the spacing teeth of the first overlapping portion 413 are meshed with the spacing teeth of the second overlapping portion 423.

[0065] In this embodiment, when adjusting the positions of the first separator 410 and the second separator 420 on the straight line where the width direction of the electrode coating area is located, after determining the relative positions of the first separator 410 and the second separator 420 according to the width of the coating area, the pitch teeth of the first overlap portion 413 and the pitch teeth of the second overlap portion 423 are staggered in the tooth peaks and tooth valleys, so that the tooth peaks of the first overlap portion 413 are meshed into the tooth valleys of the second overlap portion 423, and the tooth valleys of the first overlap portion 413 are meshed into the tooth peaks of the second overlap portion 423. As a result, the relative positions of the first overlap portion 413 and the second overlap portion 423 are fixed, avoiding the relative position deviation of the first separator 410 and the second separator 420, resulting in errors in the width of the electrode coating area 10A or the pole lug covering area 10B.

[0066] In one embodiment, the partition extension portion 4X1 defines a partition extension hole 4X10.

[0067] In this 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 head to fix the partition adjustment assembly to the die head. The fixing member 30 is, for example, a screw or a bolt.

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

[0069] In this embodiment, the fixing member 30 is passed through the first extension hole 4110, one end of the fixing member 30 abuts against the first extension portion 411, and the other end of the fixing member 30 is fixed to the die head, so as to fix the first separator to the die head. The fixing member 30 is passed through the second extension hole 4210, one end of the fixing member 30 abuts against the second extension portion 421, and the other end of the fixing member 30 is fixed to the die head, so as to fix the second separator to the die head. The first extension hole 4110 and the second extension hole 4210 belong to the separation extension hole 4X10.

[0070] like Figure 1 , Figure 8 and Fig. 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 in 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 in the same straight line.

[0071] In this embodiment, a pressure strip 40 is provided on the die head, and a plurality of fixing holes are opened on the pressure strip 40. The straight line where the extension line of the partition extension hole 4X10 and the extension line of the first end piece fixing hole 211 are located is aligned with the extension line of the pressure strip 40, and the fixing member 30 passing through the partition extension hole 4X10 and the fixing member 30 passing through the first end piece fixing hole 211 are respectively fixed to the fixing holes, and the positions of the partition extension part 4X1 and the first end piece fixing part 210 relative to the pressure strip 40 are fixed to fix the relative positions of the first adjustment end piece 200 and the partition adjustment component 400, thereby fixing the width of the electrode coating area 10A. The pressure strip 40 and the coating gasket are installed on the die head, for example, the pressure strip 40 is installed in the installation cavity of the upper die head, and the fixing member 30 fixes the coating gasket to the pressure strip 40. A number of fixing members 30 pass through each partition extension hole 4X10, one end of the fixing member 30 abuts against 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 against 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 against 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 a side away from the separation adjustment area.

[0073] In this embodiment, the first end piece baffle 230 blocks the coating from flowing to the area between the gasket base 100 and the first end piece baffle 230. The end piece chute 120 extends on the straight line where the width direction of the pole piece coating area is located, and the depth of the first end piece extension 220 penetrating into the end piece chute 120 is adjusted to adjust the spacing between the first end piece baffle 230 and the separation adjustment assembly, thereby adjusting the width of the pole piece coating area 10A. Usually, the angle between the first end piece baffle 230 and the first end piece extension 220 is 90 degrees to meet the coating requirements of the rectangular pole piece area 20A.

[0074] In one embodiment, the first adjustment end piece 200 includes a first pressing portion 240, the first end piece baffle portion 230 is connected to the first pressing portion 240, the first end piece extension portion 220 and the first pressing portion 240 are arranged on the same side of the first end piece baffle portion 230, the first pressing portion 240 and the first end piece extension portion 220 have the same extension direction, the first pressing portion 240 abuts against the gasket base 100 outside the divided piece adjustment area, the first pressing portion 240 is provided with a scale marking line, and the scale marking line of the first pressing portion 240 extends along a straight line where the width direction of the pole piece coating area is located.

[0075] In this embodiment, the first end piece extension 220 and the first pressing part 240 are respectively arranged on the side of the first end piece baffle 230 facing away from the partition adjustment assembly 400, the first end piece extension 220 and the first pressing part 240 are parallel, and a part of the gasket base 100 is arranged between the first end piece extension 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 100, and make the connection between the first adjustment end piece 200 and the gasket base 100 more stable. The first pressing part 240 abuts against the gasket base 100 outside the partition adjustment area, and the first pressing part 240 abuts against the outer edge of the gasket base 100, so as to facilitate the observation of the scale mark line on the first pressing part 240. The first pressing portion 240 can extend on the straight line where the width direction of the pole piece coating area is located to a position protruding outside the gasket base 100, which is convenient for setting a longer scale mark line and adjusting the width of the pole piece coating area 10A in a larger range.

[0076] In one embodiment, the second adjustment end piece 300 includes a second end piece baffle portion 330 connected to the second end piece extension portion 320, the angle between the second end piece baffle portion 330 and the second end piece extension portion 320 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 second end piece baffle portion 330 and the separation adjustment assembly 400, and the second end piece extension portion 320 extends to a side away from the separation adjustment area.

[0077] In this embodiment, the second end piece baffle 330 blocks the coating from flowing to the area between the gasket base 100 and the second end piece baffle 330. The end piece chute 120 extends on the straight line in the width direction of the pole piece coating area, and the depth of the second end piece extension 320 penetrating into the end piece chute 120 is adjusted to adjust the spacing between the second end piece baffle 330 and the separation adjustment assembly, thereby adjusting the width of the pole piece coating area 10A. Usually, the angle between the second end piece baffle 330 and the second end piece extension 320 is 90 degrees to meet the coating requirements of the rectangular pole piece area 20A.

[0078] In one embodiment, the second adjustment end piece 300 includes a second pressing portion 340, the second end piece baffle portion 330 is connected to the second pressing portion 340, the second end piece extension portion 320 and the second pressing portion 340 are arranged on the same side of the second end piece baffle portion 330, the second pressing portion 340 and the second end piece extension portion 320 have the same extension direction, the second pressing portion 340 abuts against the gasket base 100 outside the divided piece adjustment area, the second pressing portion 340 is provided with a scale marking line, and the scale marking line of the second pressing portion 340 extends along a straight line where the width direction of the pole piece coating area is located.

[0079] In this embodiment, the second end piece extension portion 320 and the second pressing portion 340 are respectively arranged on the side of the second end piece baffle portion 330 facing away from the partition adjustment assembly 400, the second end piece extension portion 320 and the second pressing portion 340 are parallel, and a part of the gasket base member 100 is arranged between the second end piece extension portion 320 and the second pressing portion 340, so as to increase the static friction between the second adjustment end piece 300 and the gasket base member 100, and make the connection between the second adjustment end piece 300 and the gasket base member 100 more stable. The second pressing portion 340 abuts against the gasket base member 100 outside the partition adjustment area, and the second pressing portion 340 abuts against the outer edge of the gasket base member 100, so as to facilitate the observation of the scale mark line on the second pressing portion 340. The second pressing portion 340 can extend on the straight line where the width direction of the pole piece coating area is located to a position protruding outside the gasket base 100, which is convenient for setting a longer scale mark line and adjusting the width of the pole piece coating area 10A in a larger range.

[0080] In this embodiment, the existing coating gasket cannot meet the requirements of fast switching of different coating widths and different middle pole ear width models, and gaskets that meet the process requirements need to be manufactured to meet the production requirements. The present invention combines a coated bottom film, a left adjustment piece (i.e., a first adjustment end piece), a right adjustment piece (i.e., a second adjustment end piece), a Z-shaped adjustable piece (i.e., a first separator) and a T-shaped adjustable piece (i.e., a second separator) into an intermediate baffle. When there are multiple widths, as the width increases, multiple Z-shaped adjustable pieces and T-shaped adjustable pieces are required to be combined into an intermediate baffle. The bottom film is combined with a left adjustment piece, a right adjustment piece, and at least one Z-shaped adjustable piece and at least one T-shaped adjustable piece. The bottom film and the left adjustable piece, the right adjustable piece, the Z-shaped adjustable piece, and the T-shaped adjustable piece are all provided with spacing teeth. The accuracy of each spacing tooth is 0.5MM, and the lateral width can be adjusted according to different product requirements. It can meet the requirements of a variety of coating widths, a variety of middle pole ear widths, and an extruded coating gasket with high adaptability. Improve production efficiency and reduce the purchase cost of extruded gaskets. Coated gaskets can adapt to various coating widths in the coating process and various lug widths. They are highly applicable, reduce the gasket production cycle, improve production efficiency, reduce the purchase frequency of extruded gaskets, and reduce the purchase cost of extruded gaskets. The gasket combination structure is more solid, the coating width and lug width size adjustment accuracy is more precise, and the coating width and lug width combination types are more extensive.

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

[0082] In this embodiment, the coating gasket is composed of at least two left and right guide grooves (i.e., end piece slide grooves 120), at least one or more Z-shaped and T-shaped adjustable piece guide grooves (i.e., separator slide grooves 110), and each guide groove is provided with spacing teeth on both sides, and the spacing of each spacing tooth is 0.5mm. 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 U-shaped as a whole, and have a guide plate (i.e., the first end piece extension 220 / the second end piece extension 320), and the guide plate has spacing teeth with a spacing of 0.5mm on the upper and lower sides. The guide plate cooperates with the left and right guide grooves on the bottom film.

[0083] In this embodiment, the Z-shaped adjustable piece (ie, the first partition 410 ) has spacing teeth and engraved lines on the top and bottom.

[0084] In this embodiment, the T-shaped adjustable piece (ie, the second adjusting end piece 300 ) has spacing teeth and engraved lines on the top and bottom.

[0085] In this 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 slide groove 120) of the bottom piece, and the position can be adjusted left and right through the spacing teeth to achieve coating width adjustment. The adjustment distance can be understood through the engraved lines on the left and right adjustable pieces (i.e., the first adjustment end piece 200 and the second adjustment end piece 300). After the Z-shaped adjustable piece (i.e., the first separator 410) and the T-shaped adjustable piece (i.e., the second separator 420) are combined and installed in the Z-shaped and T-shaped adjustable piece guide grooves (i.e., the separator slide groove 110) of the bottom piece, the size of the middle pole ear can be adjusted by adjusting the size of the spacing teeth on the upper and lower sides of the Z-shaped adjustable piece (i.e., the first separator 410) and the T-shaped adjustable piece (i.e., the second separator 420).

[0086] See also Figure 4 In this embodiment, the width of the tab 2 is adjusted. The width of the Z-shaped (i.e., first separator 410) and T-shaped block (i.e., second separator 420) is tightly combined, for example, to be 50 mm, and is placed in the center of the guide groove of the bottom film tab. When the current tab width requirement is changed to 55 mm, there are two ways to adjust the tab width: Method 1: The Z-shaped adjustment block can be moved 2.5 mm to the left and the T-shaped adjustable block can be moved 2.5 mm to the right to achieve a tab width of 55 mm. Method 2: The Z-shaped adjustment block can be moved 5 mm to the left or the T-shaped adjustable block can be moved 5 mm to the right to achieve a tab width of 55 mm. Tab 1 and tab 3 are the same.

[0087] See also Figure 4In this embodiment, the width of coating width 2 (i.e., the electrode area 20A corresponding to electrode 2) is adjusted. Based on the Z-type adjustable block of electrode tab 2 (i.e., the first separator 410 corresponding to electrode tab 2) as a reference, the T-type adjustment block of electrode tab 1 (i.e., the second separator 420 corresponding to electrode tab 1) is adjusted to adjust the width of coating width to the left or right. By adjusting the Z-type adjustable block of electrode tab 1 (i.e., the first separator 410 corresponding to electrode tab 1), the width of electrode tab 1 can be obtained. Coating width 1 is adjusted according to the position of the Z-type adjustment block of electrode tab 1 (i.e., the first separator 410 corresponding to electrode tab 1), and the width of coating width 1 (i.e., the electrode area 20A corresponding to electrode tab 1) can be obtained by adjusting the left adjustable block to the left or right. The coating width 3 (i.e., the electrode area 20A corresponding to the electrode 3) is based on the position of the T-shaped adjustable block of the electrode lug 2 (i.e., the second separator 420 corresponding to the electrode lug 2). By adjusting the Z-shaped adjustable block of the electrode lug 3 (the first separator 410 corresponding to the electrode lug 3) to the left or right, the coating width 3 (i.e., the electrode area 20A corresponding to the electrode lug 3) can be obtained. By adjusting the width of the T-shaped adjustable block of the electrode lug 3 (the second separator 420 corresponding to the electrode lug 3) to the left or right, the electrode lug width of the electrode lug 3 (the electrode area 20B of the electrode lug 3) can be obtained. Based on the position of the T-shaped block of the electrode lug 3 (the second separator 420 corresponding to the electrode lug 3), adjusting the right adjustable block to the left or right can obtain the coating width of the coating width 4 (i.e., the electrode area 20A corresponding to the electrode lug 4). In addition, the number of coating widths can also be customized according to needs. The Z-shaped and T-shaped adjustable blocks (separation adjustment components 400) at the electrode lugs 1 and 3 can be removed and not installed, and the 4 coating widths can be changed to 2 coating widths. All adjustable blocks and negative films are assembled and mounted on the upper die head of the coating die head.

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

[0089] See also Figure 2 In this embodiment, the pole ear is formed by combining the Z-type and T-type adjustable blocks, and the area where the coating cannot be sprayed out forms the pole ear. After the coating is fed from the die feed port 1, it is sprayed out from the areas of position 2, position 3, position 4, and position 5 to form the pole piece.

[0090] See also Figure 3 The slurry enters the large cavity of die head 2 from feed inlet 1. After the large cavity of die head is filled with slurry, the slurry enters the small cavity of die head 3. After the small cavity is filled, the slurry is sprayed out from the coating area of ​​pole piece 1, the coating area of ​​pole piece 2, the coating area of ​​pole piece 3, and the coating area of ​​pole piece 4.

[0091] Embodiment 2

[0092] See also Figures 2 to 4 In this embodiment, a coating device is provided, including at least two die heads and a coating gasket as described in any of the above embodiments, wherein the coating gasket is arranged between the two die heads.

[0093] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations 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 shall be subject to the attached claims.

Claims

1. A coated gasket, characterized in that: include: A gasket base member, a first adjustment end member, a second adjustment end member and a plurality of separation adjustment components, the gasket base member is provided with a separation adjustment area, the first adjustment end member is movably provided at one side of the separation adjustment area, the second adjustment end member is movably provided at the other side of the separation adjustment area, the separation adjustment component is movably provided between the first adjustment end member and the second adjustment end member, the separation adjustment component respectively forms a part of a pole piece coating area with the first adjustment end member and the second adjustment end member, and at least one of the first adjustment end member, the second adjustment end member and the separation adjustment component can adjust its position to change the width of the pole piece coating area.

2. The coated gasket according to claim 1, characterized in that: The separation adjustment components are arranged at intervals along a straight line where the width direction of the pole piece coating area is located, and a part of the pole piece coating area is formed between two adjacent separation adjustment components.

3. The coated gasket according to claim 1, characterized in that: The gasket base is provided with a separator slide groove, and the separator slide groove extends along a straight line in the width direction of the pole piece coating area. The separator adjustment component includes a separator extension part and a paint flow blocking part connected to each other. The separator extension part is movably arranged in the separator slide groove, and the paint flow blocking part is arranged between the first adjustment end piece and the second adjustment end piece. The pole piece coating area is formed between the paint flow blocking part and the first adjustment end piece and the second adjustment end piece respectively.

4. The coated gasket according to claim 1, characterized in that: The partition adjustment member includes a first partition and a second partition, the first partition and the second partition are respectively movably arranged between the first adjustment end member and the second adjustment end member, the first partition and the second partition adjust their positions on a straight line in the width direction of the pole piece coating area, and a pole ear covering area is formed between the first partition and the second partition.

5. The coated gasket according to claim 4, characterized in that: The first separator includes a first extension portion and a first baffle portion connected to each other, and the second separator includes a second extension portion and a second baffle portion connected to each other, the first extension portion and the second extension portion are respectively movably arranged between the first adjustment end piece and the second adjustment end piece, the first baffle portion and the second baffle portion are respectively arranged between the first adjustment end piece and the second adjustment end piece, and a pole piece coating area is formed between the first baffle portion and the second baffle portion.

6. The coated gasket according to claim 5, characterized in that: The gasket base is provided with a separator slide groove, and the separator slide groove extends along a straight line where the width direction of the pole piece coating area is located. The first extension part and the second extension part belonging to the same separation adjustment component are respectively movably arranged in the same separator slide groove.

7. The coated gasket according to claim 4, characterized in that: The first partition includes a first overlapping portion, and the second partition includes a second overlapping portion. The first overlapping portion extends toward the second partition, and the second overlapping portion extends toward the first partition. The first overlapping portion and the second overlapping portion abut against each other.

8. The coated gasket according to claim 1, characterized in that: The gasket base is provided with a plurality of end piece slide grooves, and the end piece slide grooves extend along a straight line in the width direction of the pole piece coating area; the first adjustment end piece is provided with a first end piece extension portion, and the first end piece extension portion is movably arranged in one of the end piece slide grooves; the second adjustment end piece is provided with a second end piece extension portion, and the second adjustment end piece is movably arranged in another of the end piece slide grooves.

9. The coated gasket according to claim 1, characterized in that: The first adjusting end piece is provided with a first end piece fixing portion, the first end piece fixing portion is provided with a first end piece fixing hole, and the second adjusting end piece is provided with a second end piece fixing portion, the second end piece fixing portion is provided with a second end piece fixing hole.

10. A coating device, characterized in that: The invention comprises at least two die heads and the coating gasket according to any one of claims 1 to 9, wherein the coating gasket is arranged between the two die heads.

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