Pole piece embossing device

Abstract

The utility model relates to a pole piece embossing device which comprises a support, a front rolling mechanism, a rear rolling mechanism, a connecting rod and an adjusting mechanism. When the pole pieces with different widths need to be knurled, adjustment can be performed through the adjusting mechanism, so that the distance between the first front knurling roller and the second front knurling roller and the distance between the first rear knurling roller and the second rear knurling roller are matched with the widths of the pole pieces, and the pole pieces with different widths can be knurled. In addition, the first front embossing roller and the first rear embossing roller can be kept synchronous under the action of the first connecting rod, and the relative positions of the first front embossing roller and the first rear embossing roller are kept fixed, and the second front embossing roller and the second rear embossing roller can be kept synchronous under the action of the second connecting rod, and the relative positions of the second front embossing roller and the second rear embossing roller are kept fixed. In this way, the adjusting mechanism can adjust the front rolling mechanism and the rear rolling mechanism at the same time, so that the operation frequency can be reduced, and the operation difficulty is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery equipment, in particular to a pole piece embossing device. Background Art

[0002] The pole piece is the core component for preparing lithium batteries. It is made of copper foil or aluminum foil coated with slurry. The slurry is coated in the middle of the foil and the two sides of the foil are left blank. The blank area is die-cut to obtain the pole ear. The die-cut pole ear may be folded or deformed during transportation, causing problems such as short circuit inside the battery, seriously affecting the quality of the product. Therefore, before die-cutting the pole piece, it is generally necessary to emboss the blank area to process reinforcing ribs, thereby increasing the structural strength of the pole ear. Common embossing devices can only emboss pole pieces of a specific width, and the widths of pole pieces used to prepare different types of lithium batteries are different, so the embossing device cannot be shared, resulting in higher equipment costs. Utility Model Content

[0003] Based on this, it is necessary to provide a pole piece embossing device that can emboss pole pieces of different widths in order to solve the above problems.

[0004] A pole piece embossing device, comprising:

[0005] Bracket;

[0006] A front roller pressing mechanism, comprising a first front embossing roller and a second front embossing roller slidably mounted on the bracket along a rotation axis direction;

[0007] a rear roller pressing mechanism, located downstream of the front roller pressing mechanism, the rear roller pressing mechanism comprising a first rear embossing roller and a second rear embossing roller slidably mounted on the bracket along the rotation axis direction, the first front embossing roller and the first rear embossing roller being connected via a first connecting rod, and the second front embossing roller and the second rear embossing roller being connected via a second connecting rod; and

[0008] The adjustment mechanism is capable of adjusting the distance between the first front embossing roller and the second front embossing roller and the distance between the first rear embossing roller and the second rear embossing roller.

[0009] In one embodiment, the first surface of the pole piece passing through the front rolling mechanism and the rear rolling mechanism faces the first front embossing roller and the second front embossing roller, and the opposite second surface faces the first rear embossing roller and the second rear embossing roller.

[0010] In one embodiment, the roller surfaces of the first front embossing roller and the second front embossing roller are distributed with dot-shaped protrusions, and the roller surfaces of the first rear embossing roller and the second rear embossing roller are distributed with strip-shaped protrusions.

[0011] In one embodiment, the front roller pressing mechanism also includes a front guide roller for supporting the pole piece, and the front guide roller is arranged opposite to the first front embossing roller and the second front embossing roller, and forms a front embossing channel for the pole piece to pass through between the first front embossing roller and the second front embossing roller respectively.

[0012] In one embodiment, the rear rolling mechanism also includes a rear guide roller for supporting the pole piece, and the rear guide roller is arranged opposite to the first rear embossing roller and the second rear embossing roller, and forms a rear embossing channel for the pole piece to pass through between the first rear embossing roller and the second rear embossing roller respectively.

[0013] In one embodiment, the front guide roller is located below the first front embossing roller and the second front embossing roller, and the rear guide roller is located above the first rear embossing roller and the second rear embossing roller.

[0014] In one embodiment, the adjustment mechanism includes a first adjustment component and a second adjustment component, the first adjustment component is connected to the first front embossing roller and the first rear embossing roller, and the second adjustment component is connected to the second front embossing roller and the second rear embossing roller.

[0015] In one embodiment, the first adjustment component includes a first screw, a first threaded seat and a first handwheel, the first screw is rotatably mounted on the bracket, the first threaded seat is connected to any one of the first front embossing roller and the first rear embossing roller and is threadedly engaged with the first screw, and the first handwheel is mounted on one end of the first screw.

[0016] In one embodiment, the second adjustment assembly includes a second screw, a second threaded seat and a second hand wheel, the second screw is rotatably mounted on the bracket, the second threaded seat is connected to any one of the second front embossing roller and the second rear embossing roller and is threadedly engaged with the second screw, and the second hand wheel is mounted on one end of the second screw.

[0017] In one embodiment, the first connecting rod and the second connecting rod are both equipped with a deviation correction sensor head.

[0018] The above-mentioned pole piece embossing device can be adjusted through the adjustment mechanism when it is necessary to emboss pole pieces of different widths, so that the distance between the first front embossing roller and the second front embossing roller and the distance between the first rear embossing roller and the second rear embossing roller match the width of the pole piece, thereby enabling embossing of pole pieces of different widths. Moreover, the first front embossing roller and the first rear embossing roller can keep in sync and maintain a fixed relative position under the action of the first connecting rod, and the second front embossing roller and the second rear embossing roller can also keep in sync and maintain a fixed relative position under the action of the second connecting rod. In this way, the adjustment mechanism can adjust the front roller pressing mechanism and the rear roller pressing mechanism at the same time, so it can also reduce the number of operations and reduce the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a structural schematic diagram of a pole piece embossing device in a preferred embodiment of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the pole piece embossing device from another angle;

[0022] Figure 3 for Figure 1 The schematic diagram of the pole piece embossing device shown is shown with some components omitted;

[0023] Figure 4 for Figure 1 A simplified schematic diagram of a pole piece embossing device is shown;

[0024] Figure 5 for Figure 1 A schematic structural diagram of the first front embossing roller in the pole piece embossing device shown;

[0025] Figure 6 for Figure 1 A schematic diagram of the structure of the first rear embossing roller in the pole piece embossing device is shown. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] See also Figure 1 and Figure 2 The pole piece embossing device 100 in the preferred embodiment of the utility model includes a bracket 110, a front rolling mechanism 120, a rear rolling mechanism 130, a first connecting rod 141, a second connecting rod 142 and an adjusting mechanism 150.

[0033] The support 110 plays a supporting role. The front rolling mechanism 120 and the rear rolling mechanism 130 are both installed on the support 110, and the rear rolling mechanism 130 is located downstream of the front rolling mechanism 120. Figure 4 ) can pass through the front rolling mechanism 120 and the rear rolling mechanism 130 in sequence, the front rolling mechanism 120 can perform the first embossing on the blank area on both sides of the width edge of the pole piece 200 and form the first reinforcing ribs, and the rear rolling mechanism 130 can perform the second embossing on the blank area on both sides of the width edge of the pole piece 200 and form the second reinforcing ribs. The first reinforcing ribs cooperate with the second reinforcing ribs to significantly increase the structural strength of the blank area.

[0034] The front roller pressing mechanism 120 includes a first front embossing roller 121 and a second front embossing roller 122, and the first front embossing roller 121 and the second front embossing roller 122 are slidably mounted on the bracket 110 along the rotation axis direction. Specifically, the first front embossing roller 121 and the second front embossing roller 122 can be mounted on the bracket 110 through a guide rail slider. The first front embossing roller 121 and the second front embossing roller 122 have the same structure, and the rotation axes of the two are parallel to each other. The first front embossing roller 121 and the second front embossing roller 122 are spaced apart along the rotation axis direction, and the spacing distance corresponds to the width of the pole piece 200, so the first front embossing roller 121 and the second front embossing roller 122 can respectively roll the two blank areas of the pole piece 200, thereby achieving the first embossing of the blank areas.

[0035] In this embodiment, the front rolling mechanism 120 further includes a front guide roller 123 for supporting the pole piece 200. The front guide roller 123 is arranged opposite to the first front embossing roller 121 and the second front embossing roller 122, and forms a front embossing channel for the pole piece 200 to pass through between the first front embossing roller 121 and the second front embossing roller 122. The front guide roller 123 is relatively long and can support the pole piece 200 as a whole. When the pole piece 200 passes through the front rolling mechanism 120, the blank areas on the opposite sides thereof pass through the front embossing channels on both sides, so that the blank areas on both sides are rolled by the first front embossing roller 121 and the second front embossing roller 122, respectively.

[0036] During the process of rolling the blank area of ​​the pole piece 200 by the first front embossing roller 121 and the second front embossing roller 122, the middle area of ​​the pole piece 200 can be effectively supported, thereby preventing the pole piece 200 from being sunken and deformed, thereby ensuring the accuracy of the rolling position.

[0037] The structure of the rear roller pressing mechanism 130 is roughly the same as that of the front roller pressing mechanism 120. Among them, the rear roller pressing mechanism 130 includes a first rear embossing roller 131 and a second rear embossing roller 132, and the first rear embossing roller 131 and the second rear embossing roller 132 are slidably installed on the bracket 110 along the rotation axis direction. Specifically, the first rear embossing roller 131 and the second rear embossing roller 132 can be installed on the bracket 110 through a guide rail slider. The first rear embossing roller 131 and the second rear embossing roller 132 have the same structure, and the rotation axes of the two are parallel to each other. The first rear embossing roller 131 and the second rear embossing roller 132 are spaced apart in the rotation axis direction, and the spacing distance corresponds to the width of the pole piece 200, so the first rear embossing roller 131 and the second rear embossing roller 132 can respectively roll the two blank areas of the pole piece 200, thereby realizing the second embossing of the blank areas.

[0038] In this embodiment, the rear rolling mechanism 130 further includes a rear guide roller 133 for supporting the pole piece 200. The rear guide roller 133 is arranged opposite to the first rear embossing roller 131 and the second rear embossing roller 132, and a rear embossing channel for the pole piece 200 to pass through is formed between the first rear embossing roller 131 and the second rear embossing roller 132. When the pole piece 200 passes through the rear rolling mechanism 130, the blank areas on the opposite sides thereof pass through the rear embossing channels on both sides, so that the blank areas on both sides of the pole piece 200 are rolled by the first rear embossing roller 131 and the second rear embossing roller 132, respectively.

[0039] The rear guide roller 133 is relatively long and can support the pole piece 200 as a whole. When the first rear embossing roller 131 and the second rear embossing roller 132 roll the blank area of ​​the pole piece 200, the middle area of ​​the pole piece 200 can be effectively supported, thereby preventing the pole piece 200 from being sunken and deformed, thereby ensuring the accuracy of the rolling position.

[0040] Please also read Figure 3 and Figure 4 , the first rear embossing roller 131 corresponds to the position of the first front embossing roller 121, and can jointly roll a blank area of ​​the electrode sheet; the second rear embossing roller 132 corresponds to the position of the first rear embossing roller 131, and can jointly roll another blank area of ​​the electrode sheet. Furthermore, the first front embossing roller 121 and the first rear embossing roller 131 are connected by a first connecting rod 141, and the second front embossing roller 122 and the second rear embossing roller 132 are connected by a second connecting rod 142. It can be seen that the relative position of the first front embossing roller 121 and the first rear embossing roller 131 remains stable, and the two can move synchronously; the relative position of the second front embossing roller 122 and the second rear embossing roller 132 also remains stable, and the two can also move synchronously.

[0041] In this embodiment, the first surface of the pole piece 200 passing through the front rolling mechanism 120 and the rear rolling mechanism 130 faces the first front embossing roller 121 and the second front embossing roller 122 , and the opposite second surface faces the first rear embossing roller 131 and the second rear embossing roller 132 .

[0042] like Figure 4 As shown, the first surface refers to the upper surface of the pole piece 200, and the second surface refers to the lower surface. That is, the front rolling mechanism 120 and the rear rolling mechanism 130 can emboss different two sides of the blank area of ​​the pole piece 200, respectively, so the first reinforcing ribs and the second reinforcing ribs formed are distributed on the two opposite surfaces of the blank area. In this way, the influence of the second embossing process on the first reinforcing ribs formed by the first embossing can be reduced.

[0043] Specifically, in this embodiment, the front guide roller 123 is located below the first front embossing roller 121 and the second front embossing roller 122, and the rear guide roller 133 is located above the first rear embossing roller 131 and the second rear embossing roller 132. In this way, when the pole piece 200 passes through the front roller pressing mechanism 120, the first surface can be directed toward the first front embossing roller 121 and the second front embossing roller 122, and when the pole piece 200 passes through the rear roller pressing mechanism 130, the second surface can be directed toward the first rear embossing roller 131 and the second rear embossing roller 132.

[0044] Also, please see Figure 5 and Figure 6 In this embodiment, the roller surfaces of the first front embossing roller 121 and the second front embossing roller 122 are distributed with dot-shaped protrusions 1211, and the roller surfaces of the first rear embossing roller 131 and the second rear embossing roller 132 are distributed with strip-shaped protrusions 1311. The dot-shaped protrusions 1211 on the first front embossing roller 121 and the second front embossing roller 122 can form dot-shaped first reinforcing ribs in the blank area, and the strip-shaped protrusions 1311 on the first rear embossing roller 131 and the second rear embossing roller 132 can form strip-shaped second reinforcing ribs on the surface. The combination of the two types of reinforcing ribs can significantly improve the structural strength.

[0045] Please refer again to 1 to Figure 3 The adjustment mechanism 150 can adjust the distance between the first front embossing roller 121 and the second front embossing roller 122, and can adjust the distance between the first rear embossing roller 131 and the second rear embossing roller 132. When it is necessary to emboss pole pieces 200 of different widths, the adjustment mechanism 150 can be used to adjust the distance between the first front embossing roller 121 and the second front embossing roller 122 and the distance between the first rear embossing roller 131 and the second rear embossing roller 132 to match the width of the pole piece 200, so that pole pieces 200 of different widths can be embossed.

[0046] Moreover, since the first front embossing roller 121 and the first rear embossing roller 131 can keep synchronization and maintain a fixed relative position under the action of the first connecting rod 141, the distance between the first front embossing roller 121 and the second front embossing roller 122 and the distance between the first rear embossing roller 131 and the second rear embossing roller 132 can be changed by moving any one of the first front embossing roller 121 and the first rear embossing roller 131. Similarly, the second front embossing roller 122 and the second rear embossing roller 132 can also keep synchronization and maintain a fixed relative position under the action of the second connecting rod 142, so the distance between the first front embossing roller 121 and the second front embossing roller 122 and the distance between the first rear embossing roller 131 and the second rear embossing roller 132 can be changed by moving any one of the second front embossing roller 122 and the second rear embossing roller 132. In other words, the adjustment mechanism 150 can adjust the front roller pressing mechanism 120 and the rear roller pressing mechanism 130 at the same time, thereby reducing the number of operations and the difficulty of operation.

[0047] In addition, in this embodiment, the two first connecting rods 141 and the second connecting rod 142 are both equipped with a deflection correction sensor head 160. The two deflection correction sensor heads 160 are used to detect the two blank areas of the pole piece 200 respectively to determine whether the pole piece 200 is offset. Since each deflection correction sensor head 160 can move synchronously with the first connecting rod 141 or the second connecting rod 142, when embossing pole pieces 200 of different widths, it is not necessary to adjust the position of each deflection correction sensor head 160 separately, thereby further reducing the difficulty of operation.

[0048] In this embodiment, the adjustment mechanism 150 includes a first adjustment component 151 and a second adjustment component 152. The first adjustment component 151 is transmission-connected to the first front embossing roller 121 and the first rear embossing roller 131, and the second adjustment component 152 is transmission-connected to the second front embossing roller 122 and the second rear embossing roller 132.

[0049] The first adjustment component 151 can drive the first front embossing roller 121 and the first rear embossing roller 131 to slide synchronously, so as to adjust the distance between the first front embossing roller 121 and the second front embossing roller 122 and the distance between the first rear embossing roller 131 and the second rear embossing roller 132. The second adjustment component 152 can drive the second front embossing roller 122 and the second rear embossing roller 132 to slide synchronously, and can also adjust the distance between the first front embossing roller 121 and the second front embossing roller 122 and the distance between the first rear embossing roller 131 and the second rear embossing roller 132. It can be seen that when adjusting the front roller pressing mechanism 120 and the rear roller pressing mechanism 130, each blank area of ​​the pole piece 200 can be aligned separately, so the adjustment accuracy is higher.

[0050] Furthermore, in the present embodiment, the first adjustment component 151 includes a first screw 1511, a first threaded seat 1512 and a first hand wheel 1513. The first screw 1511 is rotatably mounted on the bracket 110. The first threaded seat 1512 is connected to any one of the first front embossing roller 121 and the first rear embossing roller 131 and is threadedly engaged with the first screw 1511. The first hand wheel 1513 is mounted on one end of the first screw 1511.

[0051] Specifically, the first threaded seat 1512 in this embodiment is connected to the first rear embossing roller 131. The first hand wheel 1513 can drive the first lead screw 1511 to rotate, and the first lead screw 1511 drives the first threaded seat 1512 to move along the extension direction of the first lead screw 1511, thereby driving the first rear embossing roller 131 to slide, and then driving the first front embossing roller 121 and the corresponding first connecting rod 141 to move synchronously. The first lead screw 1511 cooperates with the first threaded seat 1512 to achieve high-precision movement, thereby improving the accuracy of adjustment.

[0052] The structure of the second adjustment component 152 is substantially the same as that of the first adjustment component 151. Specifically, the second adjustment component 152 includes a second lead screw 1521, a second threaded seat 1522 and a second hand wheel 1523. The second lead screw 1521 is rotatably mounted on the bracket 110. The second threaded seat 1522 is connected to any one of the second front embossing roller 122 and the second rear embossing roller 132 and is screwed with the second lead screw 1521. The second hand wheel 1523 is mounted on one end of the second lead screw 1521.

[0053] When the pole pieces 200 of different widths need to be embossed, the pole piece embossing device 100 can be adjusted through the adjustment mechanism 150 so that the distance between the first front embossing roller 121 and the second front embossing roller 122 and the distance between the first rear embossing roller 131 and the second rear embossing roller 132 match the width of the pole piece 200, thereby enabling the pole pieces 200 of different widths to be embossed. Moreover, the first front embossing roller 121 and the first rear embossing roller 131 can keep in sync and maintain a fixed relative position under the action of the first connecting rod 141, and the second front embossing roller 122 and the second rear embossing roller 132 can also keep in sync and maintain a fixed relative position under the action of the second connecting rod 142. In this way, the adjustment mechanism 150 can adjust the front roller pressing mechanism 120 and the rear roller pressing mechanism 130 at the same time, so it can also reduce the number of operations and reduce the difficulty of operation.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0055] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pole piece embossing device, characterized in that: include: Bracket; A front roller pressing mechanism, comprising a first front embossing roller and a second front embossing roller slidably mounted on the bracket along a rotation axis direction; a rear roller pressing mechanism, located downstream of the front roller pressing mechanism, the rear roller pressing mechanism comprising a first rear embossing roller and a second rear embossing roller slidably mounted on the bracket along the rotation axis direction, the first front embossing roller and the first rear embossing roller being connected via a first connecting rod, and the second front embossing roller and the second rear embossing roller being connected via a second connecting rod; and The adjustment mechanism is capable of adjusting the distance between the first front embossing roller and the second front embossing roller and the distance between the first rear embossing roller and the second rear embossing roller.

2. The pole piece embossing device according to claim 1, characterized in that: The first surface of the pole piece passing through the front roller pressing mechanism and the rear roller pressing mechanism faces the first front embossing roller and the second front embossing roller, and the opposite second surface faces the first rear embossing roller and the second rear embossing roller.

3. The pole piece embossing device according to claim 1, characterized in that: The roller surfaces of the first front embossing roller and the second front embossing roller are distributed with dot-shaped protrusions, and the roller surfaces of the first rear embossing roller and the second rear embossing roller are distributed with strip-shaped protrusions.

4. The pole piece embossing device according to claim 1, characterized in that: The front roller pressing mechanism also includes a front guide roller for supporting the pole piece, the front guide roller is arranged opposite to the first front embossing roller and the second front embossing roller, and forms a front embossing channel for the pole piece to pass through between the first front embossing roller and the second front embossing roller respectively.

5. The pole piece embossing device according to claim 4, characterized in that: The rear roller pressing mechanism also includes a rear guide roller for supporting the pole piece, the rear guide roller is arranged opposite to the first rear embossing roller and the second rear embossing roller, and forms a rear embossing channel for the pole piece to pass through between the first rear embossing roller and the second rear embossing roller respectively.

6. The pole piece embossing device according to claim 5, characterized in that: The front guide roller is located below the first front embossing roller and the second front embossing roller, and the rear guide roller is located above the first rear embossing roller and the second rear embossing roller.

7. The pole piece embossing device according to claim 1, characterized in that: The adjustment mechanism includes a first adjustment component and a second adjustment component. The first adjustment component is transmission-connected to the first front embossing roller and the first rear embossing roller, and the second adjustment component is transmission-connected to the second front embossing roller and the second rear embossing roller.

8. The pole piece embossing device according to claim 7, characterized in that: The first adjustment component includes a first screw, a first threaded seat and a first hand wheel. The first screw is rotatably mounted on the bracket. The first threaded seat is connected to any one of the first front embossing roller and the first rear embossing roller and is threadedly engaged with the first screw. The first hand wheel is mounted on one end of the first screw.

9. The pole piece embossing device according to claim 7, characterized in that: The second adjustment assembly includes a second lead screw, a second threaded seat and a second hand wheel. The second lead screw is rotatably mounted on the bracket. The second threaded seat is connected to any one of the second front embossing roller and the second rear embossing roller and is threadedly engaged with the second lead screw. The second hand wheel is mounted on one end of the second lead screw.

10. The pole piece embossing device according to claim 1, characterized in that: The first connecting rod and the second connecting rod are both equipped with deviation correction sensor heads.

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