Adjustable tab flattening device

Abstract

The utility model discloses an adjustable tab flattening device which comprises a support, one end of the support is rotatably connected with a supporting plate, the supporting plate is connected with a negative electrode flattening plate through an adjusting plate, and one side of the negative electrode flattening plate is movably connected with a positive electrode flattening plate; an adjusting hole group is formed in the adjusting plate, the negative electrode smoothing plate comprises a negative electrode smoothing plate main body and a waist-shaped hole which is formed in the negative electrode smoothing plate main body and is matched with the adjusting hole group, and a connecting plate is arranged on one side of the negative electrode smoothing plate main body; according to the battery tab flattening device, the tab flattening device is arranged, so that the tab of a battery after tab cutting can be flattened, and the phenomenon that a positive pole piece and a negative pole piece cannot be flattened in the winding station and the roll core forming process is mainly avoided; therefore, the product yield is improved, and the use risk of the battery is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, in particular to an adjustable tab smoothing device. Background Art

[0002] With the development of new energy vehicles, the requirements for lithium-ion power batteries are getting higher and higher. In the production process of square lithium batteries, the stress of the current collector (aluminum foil, copper foil) is released after the laser cutting of the pole ear, and the pole ear may sag or warp. When the winding needle rotates at a high speed, the pole ear may fold during the winding core forming process, causing the battery cell to short-circuit or even risk battery outflow, reducing the safety of subsequent new energy vehicles. Utility Model Content

[0003] The utility model aims to provide an adjustable tab smoothing device to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An adjustable tab smoothing device comprises a bracket, one end of which is rotatably connected to a support plate, the bracket is provided with a driving part for driving the support plate to rotate, the support plate is connected to a negative electrode smoothing plate through an adjustment plate, and one side of the negative electrode smoothing plate is movably connected to a positive electrode smoothing plate;

[0006] The adjustment plate is provided with an adjustment hole group, the negative electrode caressing plate includes a negative electrode caressing plate main body and a waist-shaped hole arranged on the negative electrode caressing plate main body and matched with the adjustment hole group, a connecting plate is provided on one side of the negative electrode caressing plate main body, and the positive electrode caressing plate includes a positive electrode caressing plate main body and a positive electrode caressing plate connecting plate, and the positive electrode caressing plate connecting plate is movably connected to the connecting plate.

[0007] As a further solution of the utility model: the driving part includes a cylinder located at the lower end of the bracket, the piston end of the cylinder is connected to a connecting slider, the connecting slider is slidably connected to the bracket, and the end of the connecting slider away from the cylinder is connected to the support plate through a connecting rod.

[0008] As a further solution of the utility model: both ends of the connecting rod are rotatably connected to the connecting slider and the supporting plate.

[0009] As a further solution of the utility model: one end of the support plate away from the connecting rod is rotatably connected to the bracket through a rotating shaft.

[0010] As a further solution of the utility model: the adjustment plate includes an adjustment plate body, a connecting hole is provided at the upper end of the adjustment plate body, the adjustment plate body is fixedly connected to the support plate through the connecting hole, the adjustment hole group is located at the lower part of the adjustment plate body and is staggered with the support plate, and a plurality of through holes for connecting the negative electrode smoothing plate are provided in the adjustment hole group.

[0011] As a further solution of the utility model: the connecting plate and the negative electrode caressing plate body are arranged vertically.

[0012] As a further solution of the utility model: the connecting plate is provided with a first rotating connecting hole and a fixed connecting hole, the positive electrode smoothing plate connecting plate is provided with a second rotating connecting hole and an arc hole, the first rotating connecting hole and the second rotating connecting hole are rotatably connected by a rotating shaft or a bolt, the distance from the fixed connecting hole to the first rotating connecting hole is the same as the distance from the arc hole to the second rotating connecting hole, and the fixed connecting hole is fixedly connected to the arc hole by a bolt.

[0013] As a further solution of the utility model: the end of the positive electrode caressing plate body away from the positive electrode caressing plate connecting plate is an arc-shaped structure.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model can smooth the battery pole ears after the pole ears are cut by arranging the pole ears smoothing device, mainly avoiding the positive and negative pole ears from folding during the winding station and the core forming process, thereby improving the product yield and reducing the risk of battery use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the present embodiment;

[0016] Figure 2 This is an axonometric view of this embodiment;

[0017] Figure 3 This is a schematic diagram of the structure of the adjustment plate in this embodiment;

[0018] Figure 4 Schematic diagram of the structure of the negative electrode plate in this embodiment;

[0019] Figure 5 Schematic diagram of the structure of the positive electrode plate in this embodiment.

[0020] In the figure: 1- bracket, 2- cylinder, 3- connecting slider, 4- connecting rod, 5- supporting plate, 6- rotating shaft, 7- negative electrode caressing plate, 71- negative electrode caressing plate body, 72- waist-shaped hole, 73- connecting plate, 74- first rotating connecting hole, 75- fixed connecting hole, 8- positive electrode caressing plate, 81- positive electrode caressing plate connecting plate, 82- positive electrode caressing plate body, 83- second rotating connecting hole, 84- arc hole, 9- adjusting plate, 91- adjusting plate body, 92- connecting hole, 93- adjusting hole group. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 In an embodiment of the utility model, an adjustable pole ear smoothing device includes a bracket 1, one end of the bracket 1 is rotatably connected to a support plate 5, the bracket 1 is provided with a driving part for driving the support plate 5 to rotate, the support plate 5 is connected to a negative electrode smoothing plate 7 through an adjustment plate 9, and one side of the negative electrode smoothing plate 7 is movably connected to a positive electrode smoothing plate 8. In this embodiment, the driving part includes a cylinder 2 located at the lower end of the bracket 1, the piston end of the cylinder 2 is connected to a connecting slider 3, the connecting slider 3 is slidably connected to the bracket 1, and the end of the connecting slider 3 away from the cylinder 2 is connected to the support plate 5 through a connecting rod 4, both ends of the connecting rod 4 are rotatably connected to the connecting slider 3 and the support plate 5, and the end of the support plate 5 away from the connecting rod 4 is rotatably connected to the bracket 1 through a rotating shaft 6.

[0023] The adjustment plate 9 includes an adjustment plate 9 main body 91, a connection hole 92 is provided at the upper end of the adjustment plate main body 91, and an adjustment hole group 93 is provided at the lower end. The adjustment plate main body 91 is fixedly connected to the support plate 5 through the connection hole 92. The adjustment hole group 93 is located at the lower part of the adjustment plate main body 91 and is staggered with the support plate 5. A plurality of through holes for connecting the negative electrode caressing plate 7 are provided in the adjustment hole group 93. The negative electrode caressing plate 7 includes a negative electrode caressing plate main body 71 and a waist-shaped hole 72 provided on the negative electrode caressing plate main body 71 and matched with the adjustment hole group 93. A connecting plate 73 is provided on one side of the negative electrode caressing plate main body 71, and the connecting plate 73 is arranged vertically with the negative electrode caressing plate main body 71. The positive electrode caressing plate 8 includes a positive electrode caressing plate main body 82 and a waist-shaped hole 72 provided on the positive electrode caressing plate main body 71. The positive electrode caressing plate connecting plate 81 on one side of the positive electrode caressing plate body 82, the end of the positive electrode caressing plate body 82 away from the positive electrode caressing plate connecting plate 81 is an arc structure, the positive electrode caressing plate connecting plate 81 is movably connected to the connecting plate 73, in this embodiment, the connecting plate 73 is provided with a first rotating connection hole 74 and a fixed connection hole 75, the positive electrode caressing plate connecting plate 81 is provided with a second rotating connection hole 83 and an arc hole 84, the first rotating connection hole 74 and the second rotating connection hole 83 are rotatably connected by a rotating shaft or bolts, the distance from the fixed connection hole 75 to the first rotating connection hole 74 is the same as the distance from the arc hole 84 to the second rotating connection hole 83, the fixed connection hole 75 is fixedly connected to the arc hole 84 by bolts.

[0024] When the utility model is in use, the position of the negative electrode caressing plate 7 is first adjusted by adjusting the plate 9. In the present embodiment, the negative electrode caressing plate 7 is provided with a waist-shaped hole 72, which is arranged in the vertical direction, so that the relative position of the negative electrode caressing plate 7 can be adjusted in the Z-axis direction. At the same time, since the adjustment plate 9 is provided with an adjustment hole group 93, including a plurality of horizontally arranged adjustment holes, the adjustment holes at different positions can be selected for connection, so that the relative position of the negative electrode caressing plate in the Y-axis direction can be adjusted. In addition, the relative angle of the positive electrode caressing plate 8 can also be adjusted. When adjusting, the bolts in the arc hole 84 and the second rotating connection hole 83 are released. Due to the existence of the arc hole 84, the positive electrode caressing plate 8 can be Rotate around the second rotating connection hole 83. When it rotates to a suitable angle, tighten the bolts to fix the positive electrode smoothing plate 8 and the connecting plate 73, thereby completing the position adjustment of the negative electrode smoothing plate 7 and the positive electrode smoothing plate 8. After completion, the pole ear can be smoothed. When the winding needle rotates at high speed to wind the battery cell into shape, the support plate 5 is driven to rotate by the cylinder 2, and then the negative electrode smoothing plate 7 and the positive electrode smoothing plate 8 are driven to rotate by the support plate 5, and move to the side of the wound battery cell, that is, the side of the battery cell pole ear. During the winding process, the negative electrode smoothing plate 7 and the positive electrode smoothing plate 8 are used to smooth the battery cell pole ear to prevent the battery cell pole ear from warping, folding and other problems, thereby ensuring the safety of the battery cell.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An adjustable tab smoothing device, comprising a bracket (1), characterized in that: One end of the bracket (1) is rotatably connected to a support plate (5); a driving unit for driving the support plate (5) to rotate is provided on the bracket (1); the support plate (5) is connected to a negative electrode caressing plate (7) via an adjustment plate (9); and one side of the negative electrode caressing plate (7) is movably connected to a positive electrode caressing plate (8); The adjustment plate (9) is provided with an adjustment hole group (93); the negative electrode caressing plate (7) comprises a negative electrode caressing plate body (71) and a waist-shaped hole (72) arranged on the negative electrode caressing plate body (71) and cooperating with the adjustment hole group (93); a connecting plate (73) is provided on one side of the negative electrode caressing plate body (71); the positive electrode caressing plate (8) comprises a positive electrode caressing plate body (82) and a positive electrode caressing plate connecting plate (81); and the positive electrode caressing plate connecting plate (81) is movably connected to the connecting plate (73).

2. The adjustable tab smoothing device according to claim 1, characterized in that: The driving part comprises a cylinder (2) located at the lower end of the bracket (1); a connecting slider (3) is connected to the piston end of the cylinder (2); the connecting slider (3) is slidably connected to the bracket (1); and the end of the connecting slider (3) away from the cylinder (2) is connected to the support plate (5) via a connecting rod (4).

3. The adjustable tab smoothing device according to claim 2, characterized in that: Both ends of the connecting rod (4) are rotatably connected to the connecting slider (3) and the supporting plate (5).

4. The adjustable tab smoothing device according to claim 2, characterized in that: One end of the support plate (5) away from the connecting rod (4) is rotatably connected to the bracket (1) via a rotating shaft (6).

5. The adjustable tab smoothing device according to claim 1, characterized in that: The adjustment plate (9) comprises an adjustment plate body (91), a connection hole (92) is provided at the upper end of the adjustment plate body (91), the adjustment plate body (91) is fixedly connected to the support plate (5) via the connection hole (92), the adjustment hole group (93) is located at the lower part of the adjustment plate body (91) and is staggered from the support plate (5), and a plurality of through holes for connecting the negative electrode caressing plate (7) are provided in the adjustment hole group (93).

6. The adjustable tab smoothing device according to claim 1, characterized in that: The connecting plate (73) is arranged perpendicularly to the negative electrode caressing plate body (71).

7. The adjustable tab smoothing device according to claim 1, characterized in that: The connecting plate (73) is provided with a first rotating connecting hole (74) and a fixed connecting hole (75); the positive electrode smoothing plate connecting plate (81) is provided with a second rotating connecting hole (83) and an arc-shaped hole (84); the first rotating connecting hole (74) and the second rotating connecting hole (83) are rotatably connected via a rotating shaft or a bolt; the distance from the fixed connecting hole (75) to the first rotating connecting hole (74) is the same as the distance from the arc-shaped hole (84) to the second rotating connecting hole (83); the fixed connecting hole (75) is fixedly connected to the arc-shaped hole (84) via a bolt.

8. The adjustable tab smoothing device according to claim 1, characterized in that: One end of the positive electrode caressing plate body (82) away from the positive electrode caressing plate connecting plate (81) is an arc-shaped structure.

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