Gasket structure and coating equipment

Abstract

The utility model provides a gasket structure and coating equipment, the gasket structure is used for coating a pole piece, and the gasket structure comprises a gasket, at least one adjusting piece and at least one fixing assembly. The gasket comprises a base and two supporting pieces, the two supporting pieces are oppositely arranged on the base in the length direction of the base, and a coating opening is formed between the two supporting pieces; the at least one adjusting piece is movably arranged on any one of the supporting pieces along the length direction of the base; and the at least one fixing assembly is connected with the adjusting piece, located on the side, away from the coating opening, of the supporting piece and used for fixing the supporting piece. The utility model aims to solve the technical problems of single structural model, long production time and low production efficiency of the existing gasket.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to the technical field of electrode sheets, and specifically relates to a gasket structure and a coating device. Background Art

[0002] In the production process of lithium-ion batteries, the electrode sheet coating process is crucial, which determines the quality of the electrode sheet and thus affects the performance and reliability of the battery cell, etc. The main function of the coating gasket is to ensure the stability of coating and avoid performance problems of the battery cell caused by poor coating uniformity. In the related art, a fixed gasket is used for coating, and the gasket is replaced every time a process is changed or the size of the electrode sheet is adjusted once. The operation is complex, the production time is wasted, and the production efficiency is low. Summary of the Utility Model

[0003] An embodiment of the utility model provides a gasket structure and a coating device, aiming to solve the technical problems of single type of the existing gasket structure, long production time, and low production efficiency.

[0004] In a first aspect, an embodiment of the utility model provides a gasket structure for coating an electrode sheet. The gasket structure includes:

[0005] A gasket, including a base and two support members. The two support members are oppositely arranged on the base along the length direction of the base, and a coating port is formed between the two support members;

[0006] At least one adjusting member movably arranged on any one of the support members along the length direction of the base; and,

[0007] At least one fixing component connected to the adjusting member and located on a side of the support member away from the coating port. The fixing component is used to fix the support member.

[0008] In an embodiment, the adjusting member includes a body portion movably connected to the support member;

[0009] The fixing component includes a fixing block and a limiting member. The fixing block is fixedly connected to a side of the support member away from the coating port, and the limiting member passes through the fixing block and is fixed to the body portion.

[0010] In an embodiment, the fixing component further includes a cooperating member. The limiting member passes through the fixing block and the body portion and is fixed to the cooperating member.

[0011] In an embodiment, a sliding groove is provided at an end of the body portion away from the coating port, and the sliding groove extends along the length direction of the base. Wherein, the limiting member passes through the sliding groove; and / or,

[0012] The fixed block includes a protruding portion protruding from the support member, and the protruding portion is provided with a perforation, wherein the limiting member passes through the perforation.

[0013] In one embodiment, there are two adjusting members, and the two adjusting members are arranged on the two support members;

[0014] The two body parts are slidably connected to the two support members so that the two adjusting members move away from or close to each other.

[0015] In one embodiment, each adjusting member further includes an abutting portion, the abutting portion is connected to one end of the body portion close to the coating port, and is located on the side of the support member close to the coating port, and the two abutting portions of the two adjusting members are arranged oppositely to adjust the size of the coating port.

[0016] In one embodiment, a boss is provided on one side of each support member close to the coating port, and the body portion is slidably connected to the support member and the boss.

[0017] In one embodiment, the abutting portion includes a first portion and a second portion, the second portion is arranged opposite to the body portion, and the first portion is connected between the body portion and the second portion, wherein the first portion and the second portion and the body portion enclose a movable cavity to movably receive the boss.

[0018] In one embodiment, a scale line is provided on one side of the body portion away from the support member.

[0019] In a first aspect, an embodiment of the present invention provides a coating device, including a gasket structure, and the gasket structure includes:

[0020] A gasket, including a base and two support members, the two support members are oppositely arranged on the base along the length direction of the base, and a coating port is formed between the two support members;

[0021] At least one adjusting member, movably arranged on any one of the support members along the length direction of the base; and,

[0022] At least one fixing component, connected to the adjusting member and located on the side of the support member away from the coating port, and the fixing component is used to fix the support member.

[0023] The beneficial effects of the embodiments of the present invention:

[0024] In the technical solution of the present utility model, a coating port is formed between the two support members. The adjusting member is disposed on one of the support members. By adjusting the position of the adjusting member, the size of the coating port is adjusted, so as to meet the coating requirements of the electrode sheets with different sizes and different signals. During the production process, the production personnel do not need to repeatedly disassemble and replace the gasket structures of different models, and only need to adjust the adjusting member, which saves production time and improves production efficiency. At the same time, the fixing assembly is disposed outside the coating port. When fixing the adjusting member, other components will not interfere with the fixing assembly, and the operation is more convenient. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is a three-dimensional schematic diagram of the gasket structure provided by the embodiment of the present utility model;

[0027] Figure 2 is Figure 1 an enlarged schematic diagram of A in

[0028] Figure 3 is Figure 1 a schematic diagram of the cooperation between the adjusting member and the fixing assembly in

[0029] Explanation of the Reference Numerals in the Drawings

[0030] Label Name Label Name 100 Gasket structure 110 Fitting 101 Gasket 111 Chute 102 Base 112 Protruding part 103 Supporting part 113 Abutting part 104 Coating port 114 Boss 105 Adjusting part 115 First part 106 Fixing component 116 Second part 107 Body part 117 Moving cavity 108 Fixing block 118 Scale line 109 Limiting part Detailed Embodiment

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model. In the present utility model, unless otherwise stated, the orientation terms such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the drawings; and "inner" and "outer" refer to the outline of the device.

[0032] In the production process of lithium-ion batteries, the electrode coating process is crucial as it determines the quality of the electrode sheet, which in turn affects the performance and reliability of the battery cell, etc. The main function of the coating gasket is to ensure the stability of the coating and avoid performance problems of the battery cell caused by poor coating uniformity. In the related art, a fixed gasket is used for coating, and the gasket is replaced every time a process is changed or the size of the electrode sheet is adjusted. The operation is complex, wasting production time and resulting in low production efficiency.

[0033] In view of this, the present utility model proposes a gasket structure. Figures 1 to 3 FIG. is a schematic structural diagram of an embodiment of the gasket structure provided by the present utility model. The gasket structure provided by the present utility model can meet the coating requirements of electrode sheets of different models and sizes, is convenient and fast to operate, and can also improve production efficiency. The gasket structure will be described in detail below with reference to the main drawings.

[0034] Please refer to Figures 1 to 3 , the present utility model provides a gasket structure 100 for coating an electrode sheet. The gasket structure 100 includes a gasket 101, at least one adjusting member 105, and at least one fixing component 106. The gasket 101 includes a base 102 and two supporting members 103. The two supporting members 103 are relatively arranged along the length direction of the base 102, and a coating opening 104 is formed between the two supporting members 103. The adjusting member 105 is movably arranged along the length direction of the base 102 on any one of the supporting members 103. The fixing component 106 is connected to the adjusting member 105, and the fixing component 106 is located on the side of the supporting member 103 away from the coating opening 104. The fixing component 106 is used to fix the supporting member 103.

[0035] In the technical solution of the present utility model, a coating opening 104 is formed between the two supporting members 103. The adjusting member 105 is arranged on one of the supporting members 103. By adjusting the position of the adjusting member 105, the size of the coating opening 104 is adjusted, so as to meet the coating requirements of electrode sheets of different sizes and signals. During the production process, production personnel do not need to repeatedly disassemble and replace different models of gasket structures 100, and only need to adjust the adjusting member 105, saving production time and improving production efficiency. At the same time, the fixing component 106 is arranged outside the coating opening 104. When fixing the adjusting member 105, other components will not interfere with the fixing component 106, making the operation more convenient.

[0036] It should be noted that the number of adjusting members 105 is not limited. In order to ensure the adjustment accuracy, in this embodiment, two adjusting members 105 are provided. The two adjusting members 105 are respectively located on the two supporting members 103. By adjusting the positions of the two adjusting members 105, the size of the coating opening 104 is adjusted, and the accuracy is higher.

[0037] Correspondingly, when there are two adjusting members 105, there are also two fixing components 106, and the two fixing components 106 respectively correspond to the two adjusting members 105.

[0038] The gasket structure 100 provided by the present utility model, compared with the traditional fixed gasket, does not need to be replaced, does not require shutdown operation, saves production time, and improves production efficiency. At the same time, since the gasket structure 100 provided by the present utility model does not need to be replaced, it can also avoid the waste of slurry caused by replacing the gasket structure 100, reduce material consumption, and reduce production costs. In addition, the gasket structure 100 can match the pole pieces of different product models, has strong applicability, can reduce the replacement frequency of the gasket structure 100, improve production capacity, and provide the overall working efficiency.

[0039] It should be noted that the specific position of the fixing component 106 is not limited, and the fixing component 106 is used to fix the adjusting member 105. In some embodiments, the fixing component 106 is disposed on the support member 103 and is located on the side of the support member 103 away from the coating port. In another embodiment, the fixing component 106 is disposed on the adjusting member 105 and is located on the side of the support member 103 away from the coating port.

[0040] In this embodiment, please refer to Figures 1 to 3 , each adjusting member 105 includes a body portion 107, and the body portion 107 is movably connected to the support member 103. The connection manner between the body portion 107 and the support member 103 is not limited, as long as relative movement can be achieved. Further, in some embodiments, each fixing component 106 includes a fixing block 108 and a limiting member 109. The fixing block 108 is fixedly connected to the side of the support member 103 away from the coating port 104, and the limiting member 109 passes through the fixing block 108 and is fixed to the body portion 107. In the actual operation process, the body portion 107 slides along the length direction of the base 102, the fixing block 108 is fixed on the support member 103, and when the body portion 107 abuts against the pole piece, the limiting member 109 cooperates with the body portion 107 to limit the movement of the body portion 107, thereby fixing the body portion 107 and the fixing block 108. In this embodiment, the fixing block 108 is disposed on the side of the support member 103 away from the coating port 104, and the limiting member 109 is also correspondingly located on the side of the support member 103 away from the coating port 104, and other components of the gasket structure 100 will not interfere with the limiting member 109, and the operation is more convenient and fast.

[0041] In this embodiment, each fixing component 106 further includes a mating member 110. The limiting member 109 passes through the fixing block 108 and the body portion 107 and is fixed to the mating member 110. Specifically, when the body portion 107 is adjusted to a suitable position (in this embodiment, the suitable position refers to the position provided by process requirements), the mating member 110 cooperates with the limiting member 109 to fix the body portion 107 on the fixing block 108. More specifically, in some embodiments, the limiting member 109 includes a bolt, and the mating member 110 includes a nut. The bolt passes through the fixing block 108 and the body portion 107 in sequence and cooperates with the nut. It should be noted that when the gasket structure 100 is not coated, the nut moves away from the bolt, so that the body portion 107 can move along the length direction of the base 102. When the gasket structure 100 needs to be adjusted, the body portion 107 moves to abut against the pole piece. At this time, the nut moves towards the bolt until the body portion 107 abuts against the fixing block 108. At this time, the body portion 107 cannot move, and the abutment is completed.

[0042] In some embodiments, a sliding groove 111 is provided at one end of the body portion 107 away from the coating port 104. The sliding groove 111 extends along the length direction of the base 102. The sliding groove 111 is configured to allow the limiting member 109 to pass through. Specifically, the shape of the sliding groove 111 is not limited. For example, the sliding groove 111 can be a U-shaped groove, and the sliding groove 111 can be a rectangular groove, which can be selected according to the actual situation. Further, the limiting member 109 is disposed through the sliding groove 111. With this arrangement, the limiting member 109 can cooperate with the mating member 110 without affecting the sliding of the body portion 107. In addition, when the width of the pole piece is relatively wide, the whole body portion 107 moves away from the coating port 104, resulting in the length of the end of the body portion 107 away from the coating port 104 being greater than the length of the end of the body portion 107 close to the coating port 104. The whole body portion 107 is in an unbalanced state, resulting in a large coating error. At this time, the limiting member 109 passes through the sliding groove 111, which can support the end of the body portion 107 away from the receiving groove, so that the whole body portion 107 is in a balanced state and the coating accuracy is improved.

[0043] Please refer to Figures 1 to 3 , the fixing block 108 is fixedly connected to the support member 103. The fixing block 108 includes a protruding portion 112 protruding from the support member 103. The protruding portion 112 is provided with a through hole, and the through hole is configured to allow the limiting member 109 to pass through. In this embodiment, the protruding portion 112 is provided. On the one hand, it is convenient for the installation and fixation of the limiting member 109. On the other hand, since the fixing block 108 is fixedly connected to the support member 103, the protruding portion 112 can extend the length of the support member 103, thereby extending the movement range of the adjusting member 105, so that the gasket structure 100 can meet pole pieces of more sizes.

[0044] The connection method between the main body part 107 and the support part 103 is not limited as long as sliding can be achieved. Specifically, the main body part 107 is slidably connected to the support part 103 so that the two adjusting parts 105 move away from or close to each other. In one embodiment, a first sliding surface is formed on one side of the main body part 107 facing the support part 103, and a second sliding surface is formed on one side of the support part 103 facing the main body part 107. The first sliding surface cooperates with the second sliding surface so that the main body part 107 moves along the length direction of the base 102. In another embodiment, a slide rail extending along the length direction of the base 102 is formed at one end of the support part 103 away from the base 102, and a slider is formed at one end of the main body part 107 close to the support part 103. The slider is slidably installed in the slide rail, thereby driving the main body part 107 to move along the length direction of the base 102.

[0045] In some embodiments, please refer to Figures 1 to 3 , each adjusting part 105 further includes an abutting part 113. The abutting part 113 is connected to one end of the main body part 107 close to the coating port 104, and the abutting part 113 is located on one side of the support part 103 close to the coating port 104. The two abutting parts 113 of the two adjusting parts 105 are arranged oppositely to clamp the pole piece. Specifically, the abutting part 113 is arranged on one side of the main body part 107 close to the coating port 104. The main body part 107 moves along the length direction of the base 102, thereby driving the abutting part 113 to move so that the abutting part 113 abuts against the pole piece. Specifically, the purpose of setting the abutting part 113 is to increase the contact area between the main body part 107 and the pole piece, disperse the abutting force of the adjusting part 105 on the pole piece, and avoid the concentration of the abutting force and damage to the pole piece.

[0046] In this embodiment, a boss 114 is provided on one side of each support part 103 close to the coating port 104, and the main body part 107 is slidably connected to the support part 103 and the boss 114. Specifically, in order to ensure that the main body part 107 can slide smoothly, the upper end surface of the boss 114 is flush with the upper end surface of the support part 103. More specifically, the support part 103 and the boss 114 are integrally formed. It should be noted that the purpose of setting the boss 114 is to extend the sliding path of the main body part 107 so that the gasket structure 100 can meet pole pieces of different models and improve the versatility of the gasket structure 100.

[0047] Please refer to Figures 1 to 3, the abutting portion 113 includes a first portion 115 and a second portion 116. The second portion 116 is disposed opposite to the body portion 107. The first portion 115 is connected between the body portion 107 and the second portion 116. Specifically, the first portion 115 is disposed on the side of the support member 103 close to the coating port 104. One end of the first portion 115 is connected to the body portion 107, and the other end of the first portion 115 extends to be flush with the lower end surface of the boss 114. The second portion 116 is located on the lower end surface of the boss 114 and is connected to the other end of the first portion 115. The first portion 115 and the second portion 116 and the body portion 107 enclose a movable cavity 117 to movably accommodate the boss 114. With such a setting, the stability of the gasket structure 100 is improved. At the same time, the boss 114 can play a guiding role, so that the body portion 107 slides along a straight line during the sliding process, avoiding phenomena such as jamming.

[0048] In some embodiments, please refer to Figures 1 to 3 , a scale line 118 is provided on the side of the body portion 107 away from the support member 103. One end of the protruding portion 112 extends to the scale line 118, and the protruding portion 112 can block the scale line 118. Further, the side of the protruding portion 112 close to the coating port 104 coincides with the scale line 118. By setting the positional relationship between the protruding portion 112 and the scale line 118, the distance that the adjusting member 105 needs to move is set, improving the accuracy.

[0049] This embodiment also provides a usage method of the gasket structure 100. The specific operations are as follows:

[0050] According to the specified width, measure along the scale line 118, and adjust one of the adjusting members 105 along the length direction of the base 102 until this adjusting member 105 is adjusted to a suitable position (i.e., the position in the process requirements), and fix the adjusting member 105 through the corresponding fixing component 106. Subsequently, according to the fixed width, measure along the scale line 118, and adjust the other adjusting member 105 along the length direction of the base 102 until this adjusting member 105 is also adjusted to a suitable position, and fix the adjusting member 105 through the corresponding fixing component 106. At this time, the two adjusting members 105 cooperate with each other to adjust the size of the coating port 104. The overall structure is stable, and coating starts. After the coating is completed, use a film ruler to measure the pole piece to ensure that the pole piece meets the process requirements.

[0051] The present utility model also proposes a coating device. The coating device includes the gasket structure 100. The specific structure of the gasket structure 100 refers to the above embodiments. Since this coating device adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0052] The above has introduced the embodiments of the present utility model in detail. Specific examples are used in this article to expound the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those skilled in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A gasket structure, characterized in that: For coating the pole piece, the gasket structure comprises: The gasket comprises a base and two supporting members, wherein the two supporting members are arranged opposite to the base along the length direction of the base, and a coating port is formed between the two supporting members; at least one adjusting member, movably disposed on any one of the supporting members along the length direction of the base; and At least one fixing component is connected to the adjusting member and is located on a side of the supporting member away from the coating port. The fixing component is used to fix the supporting member. At least one fixing component includes a fixing block and a limiting member. The fixing block is fixedly connected to a side of the supporting member away from the coating port. The limiting member passes through the fixing block and is fixed to the adjusting member.

2. The gasket structure according to claim 1, characterized in that: The adjusting member comprises a main body portion, and the main body portion is movably connected to the supporting member; The limiting member passes through the fixing block and is fixed to the main body.

3. The gasket structure according to claim 2, characterized in that: The fixing assembly further includes a matching piece, and the limiting piece passes through the fixing block and the main body and is fixed to the matching piece.

4. The gasket structure according to claim 3, characterized in that: A slide groove is provided at one end of the main body away from the coating port, and the slide groove extends along the length direction of the base, wherein the limiting member passes through the slide groove; and / or, The fixing block comprises a protruding portion protruding from the supporting member, the protruding portion is provided with a through hole, wherein the limiting member passes through the through hole.

5. The gasket structure according to any one of claims 2 to 4, characterized in that: There are two adjusting members, and the two adjusting members are arranged on the two supporting members; The two main bodies are slidably connected to the two supporting members so that the two adjusting members move away from or closer to each other.

6. The gasket structure according to claim 5, characterized in that: Each of the adjusting members also includes a contact portion, which is connected to one end of the main body close to the coating port and is located on one side of the support member close to the coating port. The two contact portions of the two adjusting members are arranged relative to each other to adjust the size of the coating port.

7. The gasket structure according to claim 6, characterized in that: A boss is provided on one side of each support member close to the coating port, and the main body is slidably connected to the support member and the boss.

8. The gasket structure according to claim 7, characterized in that: The abutting portion includes a first portion and a second portion, the second portion is arranged opposite to the main body portion, and the first portion is connected between the main body portion and the second portion, wherein the first portion and the second portion and the main body portion form a movable cavity to movably accommodate the boss.

9. The gasket structure according to any one of claims 2 to 4, characterized in that: A scale line is provided on one side of the main body away from the support member.

10. A coating device, characterized in that: Comprising a gasket structure as described in any one of claims 1-9.

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