Pressing device of sodium ion battery positive and negative pole piece pressing equipment

Abstract

The utility model relates to the technical field of electrode plate pressing, and discloses a pressing device of sodium ion battery positive and negative electrode plate pressing equipment, which comprises a bottom plate, the top of the bottom plate is fixedly connected with two left and right symmetrical mounting columns I, and an upper pressing roller and a lower pressing roller are rotatably connected between the two mounting columns I; the upper pressing roller can slide up and down in the axial direction of the first mounting column, the first mounting column is provided with a spring used for pushing the upper pressing roller downwards, and the bottom plate is further provided with a downward pressing mechanism used for pressing the upper pressing roller downwards. According to the pole piece pressing device, the upper pressing roller can be lifted upwards by hands, then one side of a pole piece is placed on the lower pressing roller, so that the pole piece can be pressed between the lower pressing roller and the upper pressing roller, and then the distance between the upper pressing roller and the surface of the lower pressing roller can be further reduced under the action of the pressing mechanism, so that additional pressing can be performed during pressing; therefore, the pole piece is tightly compacted.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode sheet pressing, in particular to a pressing device for positive and negative electrode sheet pressing equipment of a sodium ion battery. Background Art

[0002] After the coating process, in order to improve the density and thickness consistency of the battery plate surface material, pressing or tableting is usually performed. This ensures that the active materials and conductive agents in the plate are evenly distributed and tightly compacted to improve the performance and stability of the battery.

[0003] For example, a pressing device for a sodium-ion battery pole piece pressing device disclosed in a Chinese utility model patent with publication number CN209183639U can adjust the pressing force of the pole piece so as to adjust the pressing effect of the pole piece according to actual needs without adjusting the vertical telescopic device itself. The operation is simple and easy to implement.

[0004] The traditional electrode pressing device uses a pressing plate to press the electrode, so that the range of pressing on the electrode is determined by the size of the pressing plate. For electrodes with larger dimensions, using traditional pressing plates to press not only requires multiple pressings, which is time-consuming, but also multiple pressings on the same electrode may result in uneven pressing. Therefore, it is necessary to design a pressing device for sodium ion battery positive and negative electrode pressing equipment to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a pressing device for a sodium ion battery positive and negative electrode sheet pressing device, which is used to solve the technical problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressing device for a sodium ion battery positive and negative electrode sheet pressing device, comprising a base plate, two left-right symmetrical mounting columns one are fixedly connected to the top of the base plate, an upper pressing roller and a lower pressing roller are rotatably connected between the two mounting columns one, the upper pressing roller can slide up and down along the axial direction of the mounting column one, the mounting column one is provided with a spring for pushing the upper pressing roller downward, and a downward pressing mechanism for squeezing the upper pressing roller downward is also provided on the base plate.

[0007] Preferably, each of the two mounting columns has two upper and lower symmetrical sleeves, wherein the sleeve located at the bottom is fixedly sleeved on the mounting column one, and the sleeve located at the top is slidably sleeved on the mounting column one, the lower pressure roller is rotatably connected between the two sleeves located at the bottom, and the upper pressure roller is rotatably connected between the two sleeves located at the top.

[0008] Preferably, a connecting plate located above the upper pressure roller is fixedly connected to the two upper sleeves via a bracket, and an upper pull handle is fixedly connected to one side of the connecting plate.

[0009] Preferably, the pressing mechanism includes two mounting columns 2 fixedly connected to the top of the base plate, and a squeezing plate that can move forward and backward and is located on one side of the connecting plate is arranged on the top of the two mounting columns 2, and the top surface of the connecting plate and the bottom surface of the squeezing plate are both inclined surfaces.

[0010] Preferably, the tops of the two mounting posts are fixedly connected with guide rods, guide grooves are provided on both sides of the extrusion plate, and the opposite sides of the two guide rods are respectively inserted into the corresponding guide grooves.

[0011] Preferably, a mounting rod is fixedly connected between the two guide rods, a threaded rod is inserted and connected to the mounting rod through a bearing, one end of the threaded rod is inserted into the extrusion plate through a threaded fit, and the other end of the threaded rod is fixedly connected to a handwheel.

[0012] Preferably, the tops of the two mounting posts 1 are fixedly connected to limit blocks, and the spring is sleeved on the mounting post 1 and is located between the limit blocks and the corresponding sleeves.

[0013] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] The utility model can lift the upper pressing roller upward by hand, and then place one side of the pole piece on the lower pressing roller, so that the pole piece can be pressed tightly between the lower pressing roller and the upper pressing roller, and then the upper pressing roller can be further reduced in distance from the surface of the lower pressing roller under the action of the lower pressing mechanism, so that additional pressure can be applied during pressing to ensure that the pole piece is tightly compacted, and the entire pole piece can be compacted by the lower pressing roller and the upper pressing roller by pulling the pole piece, so that the phenomenon of uneven pressing of the pole piece can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is another three-dimensional structural schematic diagram of the utility model;

[0017] Figure 3 It is a partial structural decomposition schematic diagram of the utility model;

[0018] Figure 4 It is a cross-sectional structural schematic diagram of the utility model;

[0019] In the figure: 1. bottom plate; 2. mounting column 1; 3. lower pressure roller; 4. upper pressure roller; 5. spring; 6. sleeve; 7. connecting plate; 8. pull-up handle; 9. mounting column 2; 10. extrusion plate; 11. guide rod; 12. guide groove; 13. mounting rod; 14. threaded rod; 15. hand wheel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] Obviously, many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] See also Figure 1-4 The utility model provides a pressing device for a sodium ion battery positive and negative electrode sheet pressing device, comprising a bottom plate 1, two left-right symmetrical mounting posts 2 are fixedly connected to the top of the bottom plate 1, an upper pressing roller 4 and a lower pressing roller 3 are rotatably connected between the two mounting posts 2, the upper pressing roller 4 can slide up and down along the axial direction of the mounting posts 2, the mounting posts 2 are provided with a spring 5 for pushing the upper pressing roller 4 downward, and a downward pressing mechanism for pressing the upper pressing roller 4 downward is also provided on the bottom plate 1. Through such a design, when it is needed, When pressing the electrode sheet, you can first lift the upper pressing roller 4 upwards by hand and place one side of the electrode sheet on the lower pressing roller 3, so that the electrode sheet can be pressed tightly between the lower pressing roller 3 and the upper pressing roller 4, and then under the action of the lower pressing mechanism, the upper pressing roller 4 can further reduce the distance from the surface of the lower pressing roller 3, so that additional pressure can be applied during pressing to ensure that the electrode sheet is tightly compacted, and by pulling the electrode sheet, the entire electrode sheet can be compacted by the lower pressing roller 3 and the upper pressing roller 4, which can avoid uneven pressing of the electrode sheet.

[0023] The specific way of connecting the lower pressure roller 3 and the upper pressure roller 4 to the mounting column 2 is as follows: the two mounting columns 2 are each provided with two upper and lower symmetrical sleeves 6, wherein the sleeve 6 located at the bottom is fixedly sleeved on the mounting column 2, and the sleeve 6 located at the top is slidably sleeved on the mounting column 2, the lower pressure roller 3 is rotatably connected between the two sleeves 6 located at the bottom, and the upper pressure roller 4 is rotatably connected between the two sleeves 6 located at the top, so that the upper pressure roller 4 can move up and down on the mounting column 2, so as to facilitate the pole piece to extend between the lower pressure roller 3 and the upper pressure roller 4.

[0024] At the same time, a connecting plate 7 located above the upper pressing roller 4 is fixedly connected to the two upper sleeves 6 through a bracket, and an upper pull handle 8 is fixedly connected to one side of the connecting plate 7. The staff can hold the upper pull handle 8 by hand to pull the upper pressing roller 4 upward, so that one side of the pole piece can be placed into the lower pressing roller 3 and the upper pressing roller 4 to achieve compression.

[0025] In order to be able to press the upper pressing roller 4 downward, in some embodiments, it is proposed that the pressing mechanism includes two mounting posts 9 fixedly connected to the top of the bottom plate 1, and a pressing plate 10 that can move forward and backward and is located on one side of the connecting plate 7 is provided on the top of the two mounting posts 9, and the top surface of the connecting plate 7 and the bottom surface of the pressing plate 10 are both inclined surfaces;

[0026] Under the above design, the state of the connecting plate 7 and the extrusion plate 10 is as follows Figure 4 As shown in the figure, the extrusion plate 10 can move toward the direction of the connecting plate 7 so that its bottom surface can contact the top surface of the connecting plate 7. The more the extrusion plate 10 moves, the more the connecting plate 7 and the upper pressure roller 4 are squeezed downward to provide additional downward pressure to the upper pressure roller 4 to press the pole piece.

[0027] Specifically, guide rods 11 are fixedly connected to the tops of the two mounting columns 9, guide grooves 12 are opened on both sides of the extrusion plate 10, and the opposite sides of the two guide rods 11 are respectively inserted into the corresponding guide grooves 12, so that the extrusion plate 10 can form a sliding connection along the front-to-back direction at the tops of the two mounting columns 9.

[0028] In order to enable the extrusion plate 10 to move forward and backward, a mounting rod 13 is fixedly connected between the two guide rods 11, and a threaded rod 14 is inserted and connected to the mounting rod 13 through a bearing. One end of the threaded rod 14 is inserted into the extrusion plate 10 through a threaded fit, and the other end of the threaded rod 14 is fixedly connected to a hand wheel 15. The staff can rotate the hand wheel 15 by hand to rotate the threaded rod 14, and the threaded rod 14 can drive the extrusion plate 10 to move forward and backward between the two guide rods 11 through the threaded fit, so that the bottom of the extrusion plate 10 can be pressed down on the connecting plate 7 and squeeze the upper pressure roller 4 downward.

[0029] It should be noted that the tops of the two mounting columns 2 are fixedly connected to the limit blocks, the spring 5 is sleeved on the mounting column 2 and is located between the limit blocks and the corresponding sleeve 6, and the spring 5 can always push the upper sleeve 6 to move downward through its own elasticity so that the upper pressure roller 4 can be pressed down on the surface of the lower pressure roller 3.

[0030] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0031] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0032] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A pressing device for a sodium ion battery positive and negative electrode sheet pressing device, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to two left-right symmetrical mounting columns (2); an upper pressing roller (4) and a lower pressing roller (3) are rotatably connected between the two mounting columns (2); the upper pressing roller (4) can slide up and down along the axial direction of the mounting column (2); the mounting column (2) is provided with a spring (5) for pushing the upper pressing roller (4) downward; and the bottom plate (1) is also provided with a downward pressing mechanism for pressing the upper pressing roller (4) downward.

2. The pressing device of the sodium ion battery positive and negative electrode sheet pressing device according to claim 1 is characterized in that: The two mounting columns (2) are each provided with two sleeves (6) symmetrical in upper and lower directions, wherein the sleeve (6) located at the bottom is fixedly sleeved on the mounting column (2), and the sleeve (6) located at the top is slidably sleeved on the mounting column (2), the lower pressure roller (3) is rotatably connected between the two sleeves (6) located at the bottom, and the upper pressure roller (4) is rotatably connected between the two sleeves (6) located at the top.

3. The pressing device of the sodium ion battery positive and negative electrode sheet pressing device according to claim 2 is characterized in that: The two sleeves (6) located at the top are fixedly connected to a connecting plate (7) located above the upper pressure roller (4) via a bracket, and a pull-up handle (8) is fixedly connected to one side of the connecting plate (7).

4. The pressing device of the sodium ion battery positive and negative electrode sheet pressing device according to claim 3 is characterized in that: The pressing mechanism comprises two mounting posts (9) fixedly connected to the top of the bottom plate (1), and a pressing plate (10) which can move forward and backward and is located on one side of the connecting plate (7) is arranged on the top of the two mounting posts (9), and the top surface of the connecting plate (7) and the bottom surface of the pressing plate (10) are both inclined surfaces.

5. The pressing device of the sodium ion battery positive and negative electrode sheet pressing device according to claim 4 is characterized in that: The tops of the two mounting posts (9) are fixedly connected with guide rods (11), and both sides of the extrusion plate (10) are provided with guide grooves (12), and the opposite sides of the two guide rods (11) are respectively inserted into the corresponding guide grooves (12).

6. The pressing device of the sodium ion battery positive and negative electrode sheet pressing device according to claim 5, characterized in that: A mounting rod (13) is fixedly connected between the two guide rods (11), a threaded rod (14) is inserted and connected to the mounting rod (13) through a bearing, one end of the threaded rod (14) is inserted into the extrusion plate (10) through a threaded fit, and the other end of the threaded rod (14) is fixedly connected to a hand wheel (15).

7. The pressing device of the sodium ion battery positive and negative electrode sheet pressing equipment according to claim 2 is characterized in that: The tops of the two mounting columns (2) are fixedly connected to limit blocks, and the spring (5) is sleeved on the mounting column (2) and is located between the limit blocks and the corresponding sleeves (6).

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