Battery cell shaping extruder

Abstract

The utility model relates to an extruding machine, in particular to a battery cell shaping extruding machine which comprises a plurality of bases fixedly arranged below a table top, an extruding device arranged above the table top and used for shaping and extruding a battery cell, and a pressing device arranged above the extruding device, the pressing device is used for pressing and fixing the battery cell at the horizontal height, a hydraulic rod and a pressing plate of the pressing device are adopted for fixing the height, sliding deviation of the battery cell during extrusion is avoided, sliding rails on the two sides between fixing plates of the extrusion device are adopted for clamping and fixing the battery cell, and left-right deviation of the battery cell in the horizontal direction during extrusion is avoided; the hydraulic rod is adopted to drive the extrusion part to extrude the battery cell, and the pressing device and the extrusion device are matched and fixed, so that the extrusion direction of the battery cell is ensured, the situation that the production efficiency is reduced due to deformation or breakage of the battery cell in the extrusion process is avoided, and meanwhile, harm to a human body is also avoided.

Description

Technical Field

[0001] The utility model relates to an extruder, in particular to a battery core shaping extruder. Background Art

[0002] Single battery cells are clamped, connected in series and parallel, and fixedly connected together to form a cell module. In the battery production process, after the electrode production is completed, the positive and negative electrode sheets and the diaphragm are assembled and manufactured into a basic cell module by winding or stacking. Subsequently, the cell is generally hot-pressed and shaped. Pre-pressing improves the interface between the electrode and the diaphragm, which is conducive to the formation of a stable SEI film. The interface resistance and the overall internal resistance of the fully pre-pressed battery are smaller, so the cycle performance is more stable. Extrusion can increase the energy density of the battery, reduce the internal resistance, extend the battery life, etc., and can also improve the performance and stability of the battery. However, the existing cell pre-pressing equipment cannot maintain the cell extrusion direction, and is prone to deformation during the cell extrusion process, and overpressure damages the battery and even causes a battery rupture accident. Therefore, the purpose of the utility model is to provide a cell shaping extruder. Utility Model Content

[0003] The purpose of the utility model is to solve the defects of the battery cell shaping extruder mentioned in the above background technology by proposing a battery cell shaping extruder.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A battery cell shaping extruder is provided, comprising a table top, a plurality of bases are fixedly arranged below the table top, an extrusion device is arranged above the table top, the extrusion device is used to shape and extrude the battery cell, a clamping device is arranged above the extrusion device, the clamping device is used to press and fix the battery cell at a horizontal height.

[0006] As a preferred technical solution of the utility model: the extrusion device includes a fixed plate, an extrusion component is fixedly arranged on one side of the fixed plate, a battery cell is arranged between the extrusion components on both sides, and a sliding component is arranged at the lower end of the extrusion component.

[0007] As a preferred technical solution of the utility model: the clamping device includes a fixing member, fixing rods are fixedly arranged on both sides of the fixing member, a first power source is fixedly arranged below the fixing member, and one end of the first power source is fixedly connected to a pressure plate.

[0008] As a preferred technical solution of the utility model: a sliding component is fixedly arranged on the upper end surface of the table top, and a battery core is clamped and arranged between two sides of the sliding component.

[0009] As a preferred technical solution of the utility model: the height of the upper end surface of the extrusion component is the same as the height of the upper end surface of the battery core.

[0010] As a preferred technical solution of the utility model: the fixing rod is L-shaped, and a U-shaped groove is formed through the sliding component.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In this battery cell shaping extruder, a hydraulic rod and a pressing plate of a clamping device are used to fix the height to prevent the battery cell from sliding and deviating during extrusion. The battery cell is clamped and fixed by slide rails on both sides between the fixing plates of the extrusion device to prevent the battery cell from deviating horizontally to the left and right during extrusion. A hydraulic rod is used to drive the extrusion piece to extrude the battery cell, and the clamping device and the extrusion device are used to cooperate and fix the battery cell to ensure the extrusion direction of the battery cell, avoid deformation or rupture of the battery cell during the extrusion process, which leads to a decrease in production efficiency, and also avoid harm to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the preferred embodiment of the utility model;

[0014] Figure 2 This is a schematic structural diagram of a preferred embodiment of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the side view in the preferred embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the preferred embodiment of the utility model from a top view;

[0017] Figure 5 It is a schematic diagram of the structure of the slide rail in the preferred embodiment of the utility model.

[0018] The meaning of each mark in the figure is:

[0019] 1. Tabletop; 101. Base;

[0020] 2. Clamping device; 201. Fixing piece; 202. Fixing rod; 203. Hydraulic rod A; 204. Pressing plate;

[0021] 3. Extrusion device; 301. Fixed plate; 302. Hydraulic rod B; 303. Slide rail; 304. Extrusion piece; 305. Battery cell. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this embodiment can be combined with each other. The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings 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 of 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.

[0023] See also Figure 1-Figure 5 As shown, the purpose of this embodiment is to shape and extrude the battery cell. In view of this, a battery cell shaping and extruding machine is provided, including a table 1, a plurality of bases 101 are fixedly arranged below the table 1, an extrusion device 3 is arranged above the table 1, the extrusion device 3 is used to shape and extrude the battery cell 305, and a clamping device 2 is arranged above the extrusion device 3, and the clamping device 2 is used to press and fix the battery cell 305 at a horizontal height. The table 1 is used to receive and place the battery cell 305, the extrusion device 3 is used to extrude the battery cell 305 from both sides to make the performance of the battery cell 305 more stable, and the clamping device 2 is used to fix the battery cell 305 to prevent the battery cell 305 from sliding and deviating during the extrusion process, resulting in damage.

[0024] The extrusion device 3 includes a fixed plate 301. The extrusion device 3 uses a two-side extrusion method to extrude and shape the battery cell 305. An extrusion component is fixedly arranged on one side of the fixed plate 301, and the battery cell 305 is arranged between the two side extrusion components. A sliding component is arranged at the lower end of the extrusion component. The extrusion component includes a second power source and an extrusion member 304. The second power source in this embodiment is preferably a hydraulic rod B302. One end of the piston rod of the hydraulic rod B302 is fixedly connected to the extrusion member 304. The lower end of the extrusion member 304 is clamped on the sliding component. The hydraulic rod B302 drives the extrusion member 304 to shape and extrude the battery cell 305.

[0025] The clamping device 2 includes a fixing part 201, fixing rods 202 are fixedly arranged on both sides of the fixing part 201, and a first power source is fixedly arranged below the fixing part 201. The first power source in this embodiment preferably adopts a hydraulic rod A203, and one end of the first power source is fixedly connected to a pressure plate 204, and one end of the piston rod of the hydraulic rod A203 is fixedly connected to the pressure plate 204. The hydraulic rod A203 drives the pressure plate 204 to move downward to fix the horizontal height of the battery cell 305 in the slide rail 303, so as to avoid height displacement of the battery cell 305 during extrusion, resulting in production failure of the battery cell 305.

[0026] A sliding component is fixedly provided on the upper end surface of the table top 1, and a battery cell 305 is clamped between the two sides of the sliding component. The sliding component includes left and right slide rails 303 arranged between the two side fixed plates 301. The two side slide rails 303 are used to clamp the battery cell 305 and fix the two sides of the battery cell 305 to prevent the battery cell 305 from moving during squeezing, resulting in squeezing deformation.

[0027] The height of the upper end surface of the extrusion component is the same as that of the upper end surface of the battery cell 305. The height of the upper end surface of the extrusion component is the same as that of the upper end of the battery cell 305, so that when the pressing device 2 presses the battery cell 305, it avoids affecting the pressing device 3.

[0028] The fixing rod 202 is L-shaped, and a U-shaped groove is formed on the sliding part. The fixing rod 202 is L-shaped, and one end of the fixing rod 202 is fixed on the ground, and the other end is connected to the fixing member 201 to better fix the fixing member 201.

[0029] When the utility model is used in practice, the extruder is first placed on a horizontal ground, the base 101 and the table 1 are fixed on the ground, and then the fixing rod 202 of the clamping device 2 is fixed to the ground, and the battery cell 305 is clamped and placed between the slide rails 303 on both sides, and then the hydraulic rod A203 fixed at the lower end of the fixing member 201 of the clamping device 2 is started, and one end of the piston rod of the hydraulic rod A203 drives the pressing plate 204 to move downward, and the pressing plate 204 performs horizontal compression on the battery cell 305 in height, and then the hydraulic rods B302 on the fixing plates 301 on both sides of the extrusion device 3 are started, and the piston rod of the hydraulic rod B302 drives the extrusion member 304 to move on the slide rail 303 to extrude the battery cell 305 from both sides, and the slide rails 303 on both sides fix the side walls of the battery cell 305 to avoid left and right deviation of the horizontal plane when the extrusion member 304 extrudes the battery cell 305.

[0030] 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.

[0031] 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. A battery cell shaping extruder, comprising a table (1), wherein a plurality of bases (101) are fixedly arranged below the table (1), characterized in that: An extrusion device (3) is arranged above the table top (1), and the extrusion device (3) is used to perform shaping and extrusion on the battery cell (305). A clamping device (2) is arranged above the extrusion device (3), and the clamping device (2) is used to press and fix the battery cell (305) at a horizontal height.

2. The battery cell shaping extruder according to claim 1, characterized in that: The extrusion device (3) comprises a fixed plate (301), an extrusion component is fixedly arranged on one side of the fixed plate (301), a battery core (305) is arranged between the extrusion components on both sides, and a sliding component is arranged at the lower end of the extrusion component.

3. The battery cell shaping extruder according to claim 1, characterized in that: The clamping device (2) comprises a fixing member (201), fixing rods (202) are fixedly arranged on both sides of the fixing member (201), a first power source is fixedly arranged below the fixing member (201), and one end of the first power source is fixedly connected to a pressing plate (204).

4. The battery cell shaping extruder according to claim 3, characterized in that: A sliding component is fixedly arranged on the upper end surface of the table top (1), and an electric core (305) is clamped and arranged between two sides of the sliding component.

5. The battery cell shaping extruder according to claim 2, characterized in that: The height of the upper end surface of the extrusion component is the same as the height of the upper end surface of the battery core (305).

6. The battery cell shaping extruder according to claim 4, characterized in that: The fixing rod (202) is L-shaped, and a U-shaped groove is formed through the sliding component.

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