Novel reinforcing rib pinch roller

Abstract

The novel reinforcing rib pressing wheel comprises a cylindrical strip-shaped pressing wheel and a cylindrical point-shaped pressing wheel which are sequentially arranged in the front-back direction along a pole piece belt conveying path, a plurality of sets of oval pressing blocks are arranged on the outer surface of the strip-shaped pressing wheel in parallel at equal intervals in the axial direction, and an oval hole is formed in the middle of each set of oval pressing blocks. A plurality of groups of rhombic pressing blocks are arranged on the point-shaped pressing wheel in parallel, and a plurality of locking clamping grooves are axially formed in the inner wall of the strip-shaped pressing wheel and the inner wall of the point-shaped pressing wheel at equal intervals. According to the utility model, the loss of the tab caused by the folding and crescent moon of the tab in the process of transporting the tab on the road can be avoided, and different influences of the pinch roller on copper foils with different thicknesses are reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing equipment technology, and in particular to a novel reinforcing pressure roller. Background Technology

[0002] In the battery manufacturing process, die-cutting machines are involved in the conveyor transport of cathode and anode sheets. However, during this transport, the cathode and anode tabs inevitably fold. To prevent folded tabs from affecting quality, reinforcing ribs are often used before slitting to enhance tab stability and reduce losses caused by tab folding and crescent-shaped defects during conveyor transport. However, different sizes and shapes of pressure rollers will have different effects on copper foils of varying thicknesses.

[0003] The existing reinforcing device mainly uses a cylinder to push the pressure roller, which cuts the electrode tab into the shape of the pressure roller, thus improving the stability of the electrode tab. However, depending on the texture of the pressure roller, different types and thicknesses of electrode tabs may cause different problems during transportation. Utility Model Content

[0004] The main purpose of this invention is to propose a new type of reinforcing pressure roller, which aims to avoid the loss of the electrode tabs during belt transportation due to the folding and crescent shape of the electrode tabs, and to reduce the different effects of the pressure roller on copper foils of varying thicknesses.

[0005] To achieve the above objectives, this utility model provides a novel reinforcing pressure roller, comprising: a cylindrical strip-shaped pressure roller and a cylindrical dot-shaped pressure roller arranged sequentially in the front-to-back direction along the electrode conveying path; the outer surface of the strip-shaped pressure roller has a plurality of sets of elliptical pressure blocks arranged equidistantly in parallel along the axial direction, each set of elliptical pressure blocks having an elliptical hole in the middle; the dot-shaped pressure roller has a plurality of sets of rhomboid pressure blocks arranged in parallel along the axial direction; and the inner walls of both the strip-shaped pressure roller and the dot-shaped pressure roller have a plurality of locking grooves arranged equidistantly along the axial direction.

[0006] A further technical solution of this utility model is that the diagonal dimension of the elliptical pressure block is 37mm x 15mm, it protrudes upward by 10mm, and the entire surface of the elliptical pressure block is chamfered by 2mm.

[0007] A further technical solution of this utility model is that the portion of the elliptical pressure block near the outer end of the strip-shaped pressure roller is inclined downward at an angle of 30°, and the lowest end protrudes by 5mm.

[0008] A further technical solution of this utility model is that the size of the elliptical hole is reduced by 1 / 3 proportionally to the external size of the elliptical pressure block.

[0009] A further technical solution of this utility model is that the number of the elliptical pressure blocks is thirty sets.

[0010] A further technical solution of this utility model is that the number of locking grooves inside the strip-shaped pressure roller is eighteen.

[0011] A further technical solution of this utility model is that the diagonal size of the rhombus-shaped pressure block is 7.5mm x 4mm, it protrudes upward by 10mm, and the angles are 56° and 124°. All the surfaces of the rhombus-shaped pressure blocks are chamfered by 2mm.

[0012] A further technical solution of this utility model is that the portion of the rhomboid pressure block near the outer end of the dotted pressure roller is inclined downward at an angle of 30°.

[0013] A further technical solution of this utility model is that there are thirty groups of rhomboid pressing blocks, with seven rhomboid pressing blocks in each group, and each group of rhomboid pressing blocks is inclined at 45° on the outer surface of the dot-shaped pressing roller.

[0014] A further technical solution of this utility model is that the number of locking grooves inside the dotted pressure roller is ten.

[0015] The beneficial effects of this novel reinforced pressure roller are:

[0016] 1. The diamond-shaped pressure block of the dot-shaped pressure roller used in this utility model is different from the surface protrusion of the dot-shaped pressure roller in the prior art. This utility model uses a diamond pattern, which can make the electrode tab more stable under the action of the reinforcing rib. It can basically meet the requirement that the electrode tab of the 4.5um ultra-thin electrode sheet will not fold at high speed (100m / min), and the crescent rate is much smaller than that of the traditional pressure roller.

[0017] 2. The elliptical pressing block of the strip-shaped pressing roller used in this utility model is different from the surface protrusion of the strip-shaped pressing roller in the prior art. This utility model uses a hollow elliptical pattern, which can make the electrode tab more stable under the action of the reinforcing rib. It can basically meet the requirement that the electrode tab of the 4.5um ultra-thin electrode sheet will not fold at high speed (100m / min), and the crescent rate is much smaller than that of the traditional pressing roller.

[0018] 3. The locking grooves inside the dot-shaped pressure roller and the strip-shaped pressure roller are arranged in two ways: loose and precise, so that the two types of pressure rollers can be adapted to a wider range of applications. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the strip-shaped pressure roller in the reinforcing pressure roller of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the point-shaped pressure roller in the reinforcing pressure roller of this utility model.

[0022] Explanation of icon numbers:

[0023] 1. Strip-shaped pressure roller; 2. Oval pressure block; 3. Dot-shaped pressure roller; 4. Rhomboid pressure block; 5. Locking groove; 6. Oval hole.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This invention proposes a novel pressure roller applicable to both ultra-thin and conventional positive and negative electrode sheets. When used with a laser die-cutting machine, it can prevent the electrode tabs from flipping during operation from low speed to high speed.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, this utility model proposes a novel reinforcing pressure roller, comprising: a cylindrical strip-shaped pressure roller 1 and a cylindrical dot-shaped pressure roller 3 arranged sequentially in the front-to-back direction along the electrode conveying path; a plurality of sets of elliptical pressure blocks 2 are arranged axially at equal intervals on the outer surface of the strip-shaped pressure roller 1, and an elliptical hole 6 is opened in the middle of each set of elliptical pressure blocks 2; a plurality of sets of rhomboid pressure blocks 4 are arranged parallel to each other on the dot-shaped pressure roller 3; and a plurality of locking grooves 5 are arranged axially at equal intervals on the inner walls of both the strip-shaped pressure roller 1 and the dot-shaped pressure roller 3.

[0028] The elliptical pressure block 2 has a diagonal dimension of 37mm x 15mm, protrudes upwards by 10mm, and has a 2mm chamfer on all surfaces. In this embodiment, chamfering the entire surface of the elliptical pressure block 2 by 2mm avoids damaging the electrode sheets during operation.

[0029] It should be noted that when using the new reinforcing pressure rollers provided by this utility model, the strip pressure roller 1 and the dot pressure roller 3 need to be used in conjunction with a rubber roller with no protrusions on the surface to press the electrode sheet between the strip pressure roller 1, the dot pressure roller 3 and the rubber roller. During the movement of the electrode sheet, the strip pressure roller 1 and the dot pressure roller 3 press out different shapes on the front and back sides of the electrode sheet.

[0030] Furthermore, in this embodiment, the portion of the elliptical pressure block 2 near the outer end of the strip-shaped pressure roller 1 is inclined downward at an angle of 30°, and the lowest end protrudes by 5mm, thereby further avoiding damage to the electrode sheet during operation.

[0031] In this embodiment, the size of the elliptical hole 6 is reduced by 1 / 3 proportionally to the external size of the elliptical pressure block 2.

[0032] The number of the elliptical pressure blocks 2 is thirty sets.

[0033] The number of locking grooves 5 inside the strip-shaped pressure roller 1 is eighteen.

[0034] Furthermore, in this embodiment, the diagonal dimensions of the rhomboid pressing block 4 are 7.5mm x 4mm, with an upward protrusion of 10mm and angles of 56° and 124°. All surfaces of the rhomboid pressing blocks 4 are chamfered by 2mm. This embodiment, by chamfering all surfaces of the rhomboid pressing blocks 4 by 2mm, avoids damaging the electrode sheets during operation.

[0035] Furthermore, the portion of the diamond-shaped pressure block 4 near the outer end of the dotted pressure roller 3 is tilted downwards at an angle of 30°, which can further prevent damage to the electrode sheets during operation.

[0036] In this embodiment, there are thirty groups of rhomboid pressing blocks 4, with seven rhomboid pressing blocks 4 in each group. Each group of rhomboid pressing blocks 4 is inclined at 45° on the outer surface of the dot-shaped pressing roller 3.

[0037] The number of locking grooves 5 inside the dotted pressure roller 3 is ten.

[0038] The beneficial effects of this novel reinforced pressure roller are:

[0039] 1. The diamond-shaped pressure block of the dot-shaped pressure roller used in this utility model is different from the surface protrusion of the dot-shaped pressure roller in the prior art. This utility model uses a diamond pattern, which can make the electrode tab more stable under the action of the reinforcing rib. It can basically meet the requirement that the electrode tab of the 4.5um ultra-thin electrode sheet will not fold at high speed (100m / min), and the crescent rate is much smaller than that of the traditional pressure roller.

[0040] 2. The elliptical pressing block of the strip-shaped pressing roller used in this utility model is different from the surface protrusion of the strip-shaped pressing roller in the prior art. This utility model uses a hollow elliptical pattern, which can make the electrode tab more stable under the action of the reinforcing rib. It can basically meet the requirement that the electrode tab of the 4.5um ultra-thin electrode sheet will not fold at high speed (100m / min), and the crescent rate is much smaller than that of the traditional pressing roller.

[0041] 3. The locking grooves inside the dot-shaped pressure roller and the strip-shaped pressure roller are arranged in two ways: loose and precise, so that the two types of pressure rollers can be adapted to a wider range of applications.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A novel reinforcing pressure roller, characterized in that, include: Cylindrical strip-shaped pressure rollers and cylindrical dot-shaped pressure rollers are arranged sequentially along the front-to-back direction of the electrode conveyor belt. Several sets of elliptical pressure blocks are axially equidistantly arranged on the outer surface of the strip-shaped pressure rollers. Each set of elliptical pressure blocks has an elliptical hole in the middle. Several sets of rhomboid pressure blocks are arranged in parallel on the dot-shaped pressure rollers. Several locking grooves are axially equidistantly arranged on the inner walls of both the strip-shaped pressure rollers and the dot-shaped pressure rollers.

2. The novel reinforcing rib pressure roller according to claim 1, characterized in that, The elliptical pressure block has a diagonal dimension of 37mm x 15mm, protrudes upward by 10mm, and all surfaces of the elliptical pressure block have a 2mm chamfer.

3. The novel reinforcing rib pressure roller according to claim 2, characterized in that, The portion of the elliptical pressure block near the outer end of the strip-shaped pressure roller is inclined downward at an angle of 30°, with the lowest end protruding by 5mm.

4. The novel reinforcing rib pressure roller according to claim 1, characterized in that, The size of the elliptical hole is proportionally reduced by 1 / 3 compared to the external size of the elliptical pressure block.

5. The novel reinforcing rib pressure roller according to claim 1, characterized in that, The number of elliptical pressure blocks is thirty.

6. The novel reinforcing rib pressure roller according to claim 1, characterized in that, The number of locking slots inside the strip-shaped pressure roller is eighteen.

7. The novel reinforcing rib pressure roller according to claim 1, characterized in that, The diagonal dimensions of the diamond-shaped pressure block are 7.5mm x 4mm, with an upward protrusion of 10mm and angles of 56° and 124°. All diamond-shaped pressure blocks have a 2mm chamfer on their surfaces.

8. The novel reinforcing rib pressure roller according to claim 7, characterized in that, The portion of the diamond-shaped pressure block near the outer end of the dotted pressure roller tilts downward at an angle of 30°.

9. The novel reinforcing rib pressure roller according to claim 1, characterized in that, There are thirty sets of diamond-shaped pressure blocks, with seven diamond-shaped pressure blocks in each set. Each set of diamond-shaped pressure blocks is inclined at 45° on the outer surface of the dot-shaped pressure roller.

10. The novel reinforcing rib pressure roller according to claim 9, characterized in that, The number of locking slots inside the dotted pressure roller is ten.

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