Press roller structure device for improving edge thickness of pole piece

Abstract

The utility model relates to the technical field of rolling equipment, in particular to a compression roller structure device for improving the edge thickness of a pole piece, which comprises a compression roller assembly, the compression roller assembly comprises a first compression roller and a second compression roller with the same shape and size as the first compression roller, the first compression roller is provided with a first flat roller section, and the second compression roller is provided with a second flat roller section. The first compression roller is provided with a first flat roller section, the two ends of the first flat roller section are provided with first boss groups, the second compression roller is provided with a second flat roller section, the two ends of the second flat roller section are provided with second boss groups, the first boss groups abut against the second boss groups, the first flat roller section and the second flat roller section form a compression roller part, and the pole piece is processed through the compression roller part. Due to the fact that the first boss set abuts against the second boss set, when the compression roller assembly works, flexible deformation is prevented through interaction force generated by contact between the first boss set and the second boss set, deformation of the compression roller assembly is reduced, and the consistency of the transverse thickness of the pole piece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling equipment, in particular to a roller structure device for improving the edge thickness of a pole piece. Background Art

[0002] Traditionally, these rollers are linear to ensure uniform thickness and smooth surface of the rolled material. However, in actual applications, linear rollers often bend or flex due to mechanical pressure and thermal stress of the material. This deformation is particularly obvious in the middle of the roller, resulting in uneven stress distribution at both ends of the roller, which in turn affects the uniformity and quality of the rolled material. With the adjustment of parameters, linear rollers will flex during use, and the rollers will bend. After the rollers are deformed, the stress on the edge of the pole piece will be too high during the rolling process, resulting in a problem of thin thickness within 20-30mm at the edge of the pole piece. The thin edge thickness will also form a wavy edge, causing the pole piece to be scrapped. Utility Model Content

[0003] The utility model aims to provide a roller structure device for improving the thickness of the edge of the pole piece, in view of the problem that the conventional linear roller in the prior art will flexibly deform on both sides during use, thereby causing the edge thickness of the pole piece to be thin.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A roller structure device for improving the edge thickness of a pole piece, the device comprising a roller assembly, the roller assembly comprising a first roller and a second roller of the same shape and size as the first roller, the first roller being provided with a first flat roller segment, both ends of the first flat roller segment being provided with a first boss group, the second roller being provided with a second flat roller segment, both ends of the second flat roller segment being provided with a second boss group, the first boss group abutting against the second boss group, and the first flat roller segment and the second flat roller segment forming a roller portion.

[0006] The utility model discloses a roller structure device for improving the edge thickness of an electrode sheet. A roller assembly is formed by a first roller and a second roller, and the first roller and the second roller have the same shape and size, so that the first roller and the second roller can be better matched when in use to avoid errors. The first roller comprises a first flat roller section, and first boss groups are arranged at both ends of the first flat roller section, so that the first roller is a concave part. The second roller has the same shape and size as the first roller, and a second flat roller section is arranged on the second roller, and second boss groups are arranged at both ends of the second flat roller section, and the second boss group abuts against the first boss group, so that when the roller assembly is in operation, a roller portion can be formed between the first flat roller section and the second flat roller section, and the electrode sheet is processed by the roller portion. Moreover, due to the abutment between the first boss group and the second boss group, the roller assembly is placed in a flexible deformation by the interaction force generated by the contact between the first boss group and the second boss group when working, thereby reducing the deformation of the roller assembly and ensuring the consistency of the lateral thickness of the electrode sheet.

[0007] As a preferred embodiment of the utility model, the first boss group includes a first boss segment, the first boss segment is located on one side of the first flat roller segment, the end of the first flat roller segment not provided with the first boss segment is provided with a second boss segment, the second boss segment and the first boss segment are both circumferentially arranged with the axis of the first flat roller segment as a reference, such an arrangement ensures that the first boss group is always in contact with the second boss group during the rotation of the first pressure roller.

[0008] As a preferred solution of the utility model, a first inclined portion is provided at the connection between the first boss segment and the first flat roller segment, and a second inclined portion is provided at the connection between the second boss segment and the first flat roller segment. This arrangement improves the structural strength of the first pressure roller and can better prevent flexible deformation.

[0009] As a preferred solution of the utility model, the width dimension of the first boss segment and the second boss segment in the first boss group is 20mm-30mm, and such a setting can better improve the edge thickness of the pole piece.

[0010] As a preferred embodiment of the utility model, the second boss group includes a third boss segment, the third boss segment is located on one side of the second flat roller segment, and the side of the second flat roller segment where the third boss segment is not provided is provided with a fourth boss segment, and the fourth boss segment and the third boss segment are both circumferentially arranged with the axis of the second flat roller segment as a reference, so that the second boss group and the first boss group in the pressure roller assembly can always be in contact with each other.

[0011] As a preferred solution of the utility model, a third inclined portion is provided at the connection between the third boss segment and the second flat roller segment, and a fourth inclined portion is provided at the connection between the fourth boss segment and the second flat roller segment. This arrangement makes the structural strength of the second pressure roller higher and can better prevent flexible deformation.

[0012] As a preferred solution of the utility model, the width dimensions of the third boss segment and the fourth boss segment in the second boss group are 20mm-30mm, and such a setting can better improve the edge thickness of the pole piece.

[0013] As a preferred solution of the utility model, the boss segments of the first boss group and the second boss group have a hard material coating, which improves the durability of the pressure roller and maintains the consistency of edge processing.

[0014] As a preferred solution of the utility model, the surfaces of the first flat roller segment and the second flat roller segment are coated with an anti-oxidation coating, which improves the scratch and wear resistance of the pressure roller assembly and extends the service life of the pressure roller.

[0015] As a preferred solution of the present utility model, the first boss group and the second boss group are made of reinforced alloy material.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. The utility model is a roller structure device for improving the edge thickness of an electrode sheet. A roller assembly is formed by a first roller and a second roller, and the first roller and the second roller have the same shape and size, so that the first roller and the second roller can be better matched when in use to avoid errors, and the first roller includes a first flat roller segment, and a first boss group is provided at both ends of the first flat roller segment, so that the first roller is a concave part, and the second roller has the same shape and size as the first roller, and a second flat roller segment is provided on the second roller, and a second boss group is provided at both ends of the second flat roller segment, and the second boss group abuts against the first boss group, so that when the roller assembly is in operation, a roller portion can be formed between the first flat roller segment and the second flat roller segment, and the electrode sheet is processed by the roller portion, and due to the abutment between the first boss group and the second boss group, the roller assembly is placed in a flexible deformation by the interaction force generated by the contact between the first boss group and the second boss group when working, thereby reducing the deformation of the roller assembly and ensuring the consistency of the lateral thickness of the electrode sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the pressure roller assembly of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first pressing roller of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the second pressing roller of the utility model.

[0021] Icons: 1-pressure roller assembly; 11-first pressure roller; 111-first flat roller section; 112-first inclined portion; 113-second inclined portion; 114-first boss group; 1141-first boss section; 1142-second boss section; 12-second pressure roller; 121-second flat roller section; 122-third inclined portion; 123-fourth inclined portion; 124-second boss group; 1241-third boss section; 1242-fourth boss section; 2-pressure roller section. DETAILED DESCRIPTION

[0022] The utility model is described in detail below in conjunction with the accompanying drawings.

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] Example 1

[0025] like Figure 1-3 A roller structure device for improving the edge thickness of a pole piece is shown, the device comprises a roller assembly 1 for processing pole pieces, the roller assembly 1 comprises a first roller 11, the first roller 11 is provided with a first flat roller segment 111, the first flat roller segment 111 is provided with a first boss group 114, the first boss group 114 comprises a first boss segment 1141 and a second boss segment 1142, and the first boss segment 1141 and the second boss segment 1142 are respectively located at two ends of the first flat roller segment 111;

[0026] The pressing roller assembly 1 also includes a second pressing roller 12. The second pressing roller 12 has the same structure and size as the first pressing roller 11. The second pressing roller 12 is provided with a second flat roller segment 121 and a second boss group 124 provided on the second flat roller segment 121. The second boss group 124 includes a third boss segment 1241 and a fourth boss segment 1242. The third boss segment 1241 abuts against the first boss segment 1141, and the fourth boss segment 1242 abuts against the second boss segment 1142.

[0027] Through the abutment between the first boss segment 1141 and the third boss segment 1241 as well as the abutment between the second boss segment 1241 and the fourth boss segment 1242, the first flat roller segment 111 and the second flat roller segment 121 can form a pressure roller portion 2 for processing the pole piece. Through the abutment between the first boss segment 1141 and the third boss segment 1241 as well as the abutment between the second boss segment 1141 and the fourth boss segment 1242, the abutment between various parts generates an interaction force, which can prevent the entire pressure roller assembly 1 from undergoing flexible deformation during operation.

[0028] As mentioned above, the first boss segment 1141 and the second boss segment 1142 are both arranged circumferentially along the axis of the first flat roller segment 111, and the third boss segment 1241 and the fourth boss segment 1242 are arranged circumferentially along the axis of the second flat roller segment 121, so that the first boss segment 1141 and the third boss segment 1241 can always keep in contact with each other, and also ensure that the second boss segment 1142 and the fourth boss segment 1242 always keep in contact with each other, which can better prevent flexible deformation;

[0029] Furthermore, a first inclined portion 112 is provided at the connection between the first boss section 1141 and the first flat roller section 111, and a second inclined portion 113 is provided at the connection between the second boss section 1142 and the first flat roller section 111. By providing the first inclined portion 112 and the second inclined portion 113, the structural strength of the entire first pressing roller 11 is improved during use.

[0030] Furthermore, a third inclined portion 122 is provided at the junction of the third boss segment 1241 and the second flat roller segment 121, and a fourth inclined portion 123 is provided at the junction of the fourth boss segment 1242 and the second flat roller segment 121. This arrangement makes the entire second pressing roller 12 have a better structural strength during use. Figure 2-3 shown.

[0031] As mentioned above, the first boss group 114 and the second boss group 124 are made of reinforced alloy material, including aluminum.

[0032] Example 2

[0033] Based on Example 1, this Example 2 provides a solution to improve the problem of thin thickness in the 20-30 mm area at the edge of the pole piece. The specific solution is as follows:

[0034] The length of the first pressing roller 11 and the second pressing roller 12 are both 800 mm, and the thickness of the roller coating is thickened within 30 mm of the edges on both sides to obtain the first boss section 1141, the second boss section 1142, the third boss section 1241, and the fourth boss section 1242. After the thickening, the remaining 736 mm of the first pressing roller 11 and the second pressing roller 12 are flat roller sections.

[0035] Furthermore, the thickness difference between the boss section and the flat roller section is reduced by a slope to obtain the first inclined portion 112, the second inclined portion 113, the third inclined portion 122, and the fourth inclined portion 123; and the thickness of each inclined portion is 2 mm. When the pole piece is rolled, the first pressing roller 11 and the second pressing roller 12 rotate at the same time, and the first boss group 114 and the second boss group 124 are in contact. There will be mutual force at the contact position, and the flexible deformation of the pressing roller assembly 1 is controlled by the action of force, and the deformation of the pressing roller assembly 1 is reduced. In this way, the edge thickness is increased, the consistency of the lateral thickness of the pole piece is maintained, and the wavy edge of the pole piece is reduced or eliminated.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A roller structure device for improving the edge thickness of a pole piece, characterized in that: The device comprises a pressure roller assembly (1), wherein the pressure roller assembly (1) comprises a first pressure roller (11) and a second pressure roller (12) having the same shape and size as the first pressure roller (11); the first pressure roller (11) is provided with a first flat roller segment (111); both ends of the first flat roller segment (111) are provided with first boss groups (114); the second pressure roller (12) is provided with a second flat roller segment (121); both ends of the second flat roller segment (121) are provided with second boss groups (124); the first boss group (114) is in abutment with the second boss group (124); the first flat roller segment (111) and the second flat roller segment (121) constitute a pressure roller portion (2).

2. A roller structure device for improving the edge thickness of a pole piece according to claim 1, characterized in that: The first boss group (114) comprises a first boss segment (1141), the first boss segment (1141) being located on one side of the first flat roller segment (111), and a second boss segment (1142) being provided at one end of the first flat roller segment (111) not provided with the first boss segment (1141), the second boss segment (1142) and the first boss segment (1141) being both circumferentially arranged with the axis of the first flat roller segment (111) as a reference.

3. A roller structure device for improving the edge thickness of a pole piece according to claim 2, characterized in that: A first inclined portion (112) is provided at the junction of the first boss segment (1141) and the first flat roller segment (111), and a second inclined portion (113) is provided at the junction of the second boss segment (1142) and the first flat roller segment (111).

4. A roller structure device for improving the edge thickness of a pole piece according to claim 3, characterized in that: The width dimensions of the first boss segment (1141) and the second boss segment (1142) in the first boss group (114) are 20 mm to 30 mm.

5. A roller structure device for improving the edge thickness of a pole piece according to any one of claims 1 to 4, characterized in that: The second boss group (124) comprises a third boss segment (1241), the third boss segment (1241) being located on one side of the second flat roller segment (121), and a fourth boss segment (1242) being provided on the side of the second flat roller segment (121) not provided with the third boss segment (1241), the fourth boss segment (1242) and the third boss segment (1241) being both circumferentially arranged with the axis of the second flat roller segment (121) as a reference.

6. A roller structure device for improving the edge thickness of a pole piece according to claim 5, characterized in that: A third inclined portion (122) is provided at the junction of the third boss segment (1241) and the second flat roller segment (121), and a fourth inclined portion (123) is provided at the junction of the fourth boss segment (1242) and the second flat roller segment (121).

7. A roller structure device for improving the edge thickness of a pole piece according to claim 6, characterized in that: The width dimensions of the third boss segment (1241) and the fourth boss segment (1242) in the second boss group (124) are 20 mm to 30 mm.

8. A roller structure device for improving the edge thickness of a pole piece according to any one of claims 6 to 7, characterized in that: The boss segments of the first boss group (114) and the second boss group (124) have a hard material coating.

9. A roller structure device for improving the edge thickness of a pole piece according to any one of claims 6 to 7, characterized in that: The surfaces of the first flat roller segment (111) and the second flat roller segment (121) are coated with an anti-oxidation coating.

10. A roller structure device for improving the edge thickness of a pole piece according to any one of claims 6 to 7, characterized in that: The first boss group (114) and the second boss group (124) are both made of reinforced alloy material.

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