Pole piece compression roller

Abstract

The utility model relates to the technical field of compression roller design, in particular to a pole piece compression roller. Comprising a roller body, first sleeves which sleeve the periphery of the roller body in a staggered manner and are used for corresponding to a blank area of a pole piece during rolling, second sleeves which are used for corresponding to a coating area of the pole piece, and limiting assemblies which are mounted at the two ends of the roller body and are used for limiting the first sleeves at the head end and the tail end; a plurality of limiting grooves are annularly formed in the periphery of the roller body in the axis direction of the roller body, and limiting blocks are arranged at the positions, corresponding to the limiting grooves, of the first sleeve and the bottom of the sleeve. The limiting assembly comprises a limiting cylinder, and the limiting cylinder is installed at the end of the roller body and abuts against the first sleeve. Through the arrangement, the roller body can be effectively protected, meanwhile, the rolling requirements of blank areas and coating areas of various pole pieces can be effectively met, frequent replacement of the pole piece pressing roller is avoided, the cost is effectively saved, and the pole piece pressing roller is suitable for industrial application.

Description

Technical Field

[0001] This utility model relates to the field of pressure roller design technology, and in particular to an electrode pressure roller. Background Technology

[0002] The preparation of lithium battery electrodes generally involves coating a mixture of active materials and various additives onto a substrate. The coated substrate is then rolled to form an electrode. When the electrode is coated using an intermittent coating method, the electrode has a coating area and a blank area distributed at intervals. The blank area is used as a tab.

[0003] During the rolling process, the electrode pressing roller will experience some wear. Different degrees of wear on the battery electrode pressing roller may affect the production thickness of the electrode. Therefore, the battery electrode pressing roller needs to be frequently sent out for grinding. After multiple grindings, the battery electrode pressing roller will be scrapped as a whole, resulting in frequent replacement of the pressing roller and high operating costs. At the same time, the coating area width of different specifications of electrode may be different, which means that the pressing roller of the same specification cannot press electrode of different specifications.

[0004] Therefore, it is necessary to propose a technical means to solve the above-mentioned defects. Utility Model Content

[0005] The present invention adopts the following technical solution:

[0006] An electrode pressing roller includes a roller body, a first sleeve staggered around the outer periphery of the roller body for use during rolling pressing, corresponding to the blank area of ​​the electrode, and a second sleeve for use corresponding to the coated area of ​​the electrode, and a limiting assembly installed at both ends of the roller body for limiting the first sleeve located at the beginning and end; wherein...

[0007] The outer periphery of the roller body is provided with a plurality of limiting grooves along the axial direction of the roller body, and the bottom of the first sleeve and the sleeve are provided with limiting blocks corresponding to the limiting grooves;

[0008] The limiting component includes a limiting cylinder, which is installed at the end of the roller body and abuts against the first sleeve.

[0009] Preferably, the end of the first sleeve that abuts against the second sleeve is provided with a fitting block; the second sleeve is provided with a fitting groove corresponding to the fitting block.

[0010] Preferably, the outer side of the interlocking block is provided with an elastic rubber layer.

[0011] Preferably, the end of the roller body is provided with a first bolt hole; the limiting cylinder includes a cylinder sleeved on the surface of the roller body and abutting against the first cylinder body, and an end cap connected to the cylinder body; the end cap is provided with a second bolt hole corresponding to the first bolt hole; during installation, the end cap is connected to the roller body through the cooperation of the first bolt hole, the second bolt hole and a bolt.

[0012] Preferably, one end of the roller body is provided with a connecting shaft for connection to an external device; the end cover is provided with a communicating hole for the connecting shaft to pass through.

[0013] The electrode pressure roller of this utility model, through the setting of a first sleeve, a second sleeve and a limiting sleeve, can effectively protect the roller body while effectively meeting the rolling pressure requirements of various electrode blank areas and coating areas, avoiding the need for frequent replacement of electrode pressure rollers, effectively saving costs, and is suitable for industrial applications. Attached Figure Description

[0014] Figure 1 This is an overall schematic diagram of an electrode pressure roller according to the present invention;

[0015] Figure 2 This is an overall schematic diagram of an electrode pressure roller in a cut state according to the present invention;

[0016] Figure 3 This is a schematic diagram of the electrode roller of this utility model after removing the cylinder at one end. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figures 1 to 3 An electrode pressing roller includes a roller body 10, a first sleeve 20 staggered around the outer periphery of the roller body 10 for use during rolling pressing, corresponding to the blank area of ​​the electrode, and a second sleeve 30 for use corresponding to the coating area of ​​the electrode; and a limiting component 40 installed at both ends of the roller body 10 for limiting the first sleeve 20 located at the beginning and end ends.

[0021] Multiple limiting grooves 101 are provided around the outer periphery of the roller body 10 along the axial direction of the roller body 10, and limiting blocks 50 are provided on the first sleeve 20 and the bottom of the sleeve corresponding to the limiting grooves 101.

[0022] The limiting component 40 includes a limiting cylinder, which is installed at the end of the roller body 10 and abuts against the first sleeve 20.

[0023] Specifically, in this embodiment, the first sleeve 20 and the second sleeve 30 are used to roll the electrode sheet, which can effectively protect the roller body 10. Furthermore, during installation, the size of the first sleeve 20 and the second sleeve 30 is selected according to the blank area and the coating area of ​​the electrode sheet to be rolled. The first sleeve 20 and the second sleeve 30 are installed alternately on the surface of the roller body 10 through the limiting groove 101. After the first sleeve 20 and the second sleeve 30 are installed, the first sleeve 20 is located at the beginning and end of the roller body 10, respectively. Then, the limiting sleeve is inserted into the beginning and end of the roller body 10 and abuts against the first sleeve 20 to effectively limit the axial movement of the first sleeve 20 and the second sleeve 30 on the roller body 10. At the same time, the rotation of the first sleeve 20 and the second sleeve 30 on the roller body 10 is limited by the setting of the limiting groove 101. Thus, the first sleeve 20 and the second sleeve 30 can be effectively restricted.

[0024] The electrode pressure roller of this utility model, through the setting of the first sleeve 20, the second sleeve 30 and the limiting sleeve, can effectively protect the roller body 10 while effectively meeting the rolling pressure requirements of various electrode blank areas and coating areas, avoiding the need for frequent replacement of electrode pressure rollers, effectively saving costs, and is suitable for industrial applications.

[0025] In one specific embodiment, a fitting block 201 is provided at the end of the first sleeve 20 that abuts against the second sleeve 30; the second sleeve 30 is provided with a fitting groove corresponding to the fitting block 201. In this embodiment, the fitting block 201 and the fitting groove are provided to strengthen the tight connection between the first sleeve 20 and the second sleeve 30.

[0026] In one specific embodiment, an elastic rubber layer is provided on the outer side of the mating block 201. In this embodiment, the provision of the elastic rubber layer (not shown in the figure) improves the tight connection between the mating block 201 and the mating groove.

[0027] In one specific embodiment, the end of the roller body 10 is provided with a first bolt hole; the limiting cylinder includes a cylinder 401 sleeved on the surface of the roller body 10 and abutting against the first cylinder 401, and an end cap 402 connected to the cylinder 401; the end cap 402 is provided with a second bolt hole corresponding to the first bolt hole; during installation, the end cap 402 is connected to the roller body 10 through the cooperation of the first bolt hole, the second bolt hole, and a bolt 403. Specifically, since the position of the bolt 403 in the first bolt hole is controllable, the cylinder 401 can effectively cooperate with the size changes of the first sleeve 20 and the second sleeve 30 to press and limit the first sleeve 20.

[0028] In one specific embodiment, one end of the roller body 10 is provided with a connecting shaft 102 connected to an external device; the end cover 402 is provided with a communication hole for the connecting shaft 102 to pass through.

[0029] The electrode pressure roller of this utility model, through the setting of the first sleeve 20, the second sleeve 30 and the limiting sleeve, can effectively protect the roller body 10 while effectively meeting the rolling pressure requirements of various electrode blank areas and coating areas, avoiding the need for frequent replacement of electrode pressure rollers, effectively saving costs, and is suitable for industrial applications.

[0030] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An electrode pressure roller, characterized in that: The device includes a roller body, a first sleeve staggered around the outer periphery of the roller body for use during rolling to correspond to the blank area of ​​the electrode sheet, and a second sleeve for use to correspond to the coating area of ​​the electrode sheet, and a limiting assembly installed at both ends of the roller body for limiting the first sleeve located at the beginning and end ends; wherein... The outer periphery of the roller body is provided with a plurality of limiting grooves along the axial direction of the roller body, and the bottom of the first sleeve and the sleeve are provided with limiting blocks corresponding to the limiting grooves; The limiting component includes a limiting cylinder, which is installed at the end of the roller body and abuts against the first sleeve.

2. The electrode pressure roller according to claim 1, characterized in that: The first sleeve has a fitting block at one end that abuts against the second sleeve; the second sleeve has a fitting groove corresponding to the fitting block.

3. The electrode pressure roller according to claim 2, characterized in that: The outer side of the interlocking block is provided with an elastic rubber layer.

4. The electrode pressure roller according to claim 1, characterized in that: The end of the roller body is provided with a first bolt hole; the limiting sleeve includes a cylinder body sleeved on the surface of the roller body and abutting against the first sleeve, and an end cap connected to the cylinder body; the end cap is provided with a second bolt hole corresponding to the first bolt hole; during installation, the end cap is connected to the roller body through the cooperation of the first bolt hole, the second bolt hole and a bolt.

5. The electrode pressure roller according to claim 4, characterized in that: One end of the roller body is provided with a connecting shaft that connects to an external device; the end cover is provided with a connecting hole for the connecting shaft to pass through.

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