Extrusion device for producing electrode plate of solid-state lithium battery

Abstract

The utility model discloses an extrusion device for solid-state lithium battery electrode slice production, which relates to the technical field of lithium battery electrode slice processing and comprises a processing table, an extrusion roller group is mounted on the processing table, a conveying belt and two groups of mechanical arms are sequentially arranged on the processing table from left to right, and the extrusion roller group comprises an upper roller and a lower roller. A feeding component used for assisting in conveying electrode plates is further installed on the machining table, the feeding component comprises two sets of feeding rollers and further comprises a fixing frame, the two sets of feeding rollers are rotatably installed on the fixing frame, and limiting components matched with the feeding rollers are further installed at the upper end of the fixing frame. According to the utility model, through the arrangement of the feeding part and the limiting part, the electrode plate can be horizontally conveyed in the electrode plate extrusion processing process, the stability of the electrode plate in the conveying and extrusion process is ensured, the bending deformation of the electrode plate is prevented, and dust removal treatment can be carried out on the surface of the electrode plate before extrusion; and the electrode plate extrusion processing quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery electrode sheet processing technology, and in particular to an extrusion device for the production of solid-state lithium battery electrode sheets. Background Technology

[0002] Currently, lithium batteries, as a common type of battery, are ideal chemical energy sources with advantages such as small size, light weight, high energy storage density, high rated voltage, long life, and environmental friendliness. However, when manufacturing them, extrusion rollers are used to extrude and shape the electrode sheets.

[0003] Patent searches revealed the following known prior art solutions;

[0004] The utility model patent with patent publication number CN218656103U discloses a lithium battery electrode sheet extrusion molding device. The device uses a transmission chain that meshes with a transmission gear and a follower gear on the inner side. When the servo motor drives the transmission gear to rotate, it can drive the rotating rods and the bidirectional lead screw located on both sides to rotate synchronously and in the same direction. During the rotation of the bidirectional lead screw, it drives the two sets of adjusting sleeves and the extrusion rollers on their inner sides to move synchronously vertically, thereby adjusting the vertical spacing between the extrusion rollers.

[0005] Analysis revealed that the above solution still has some shortcomings. During the process of conveying the electrode sheet to the extrusion roller by the mechanical gripper, the part of the electrode sheet that is not extruded lacks support, which can easily lead to the electrode sheet being completely crushed. Furthermore, the lack of limiting during the extrusion process can cause the electrode sheet to bend after extrusion. Also, dust particles may be present on the surface of the electrode sheet during the conveying process, which can easily cause scratches or damage to the surface during the extrusion process.

[0006] To address the aforementioned issues, an extrusion apparatus for producing solid-state lithium battery electrode sheets is proposed. Utility Model Content

[0007] The purpose of this invention is to provide an extrusion device for the production of solid-state lithium battery electrode sheets in order to solve the above-mentioned problems.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An extrusion apparatus for producing solid-state lithium battery electrode sheets includes a processing table with an extrusion roller assembly mounted on the processing table. From left to right, the processing table is also provided with a conveyor belt and two sets of robotic arms. The extrusion roller assembly includes an upper roller and a lower roller. The processing table is also equipped with a feeding component for assisting in the conveying of the electrode sheets, and the feeding component includes a feeding roller.

[0010] As a further description of the above technical solution:

[0011] The feeding component also includes a fixed frame set on the processing table. The feeding rollers are provided in two sets and are rotatably mounted on the fixed frame. A limiting component that cooperates with the feeding rollers is also installed on the upper end of the fixed frame.

[0012] As a further description of the above technical solution:

[0013] The limiting component includes a mounting bracket installed on the upper end of the fixed frame. A guide rod runs vertically through the middle of the mounting bracket. A limiting roller is rotatably installed at the bottom of the guide rod. The surface of the limiting roller is covered with cleaning cotton. A first spring is also sleeved on the surface of the guide rod.

[0014] As a further description of the above technical solution:

[0015] The mounting bracket surface is also slidably fitted with side plates, the side plates are provided in two sets and are vertically symmetrically distributed, the mounting bracket surface is also fitted with a fixing plate, and a second spring is provided between the fixing plate and the side plates.

[0016] As a further description of the above technical solution:

[0017] Airbags are installed at the bottom of both ends of the mounting frame, and an eccentric wheel that cooperates with the airbag is provided on the feed roller shaft. An air outlet is opened on the surface of the side plate, and the air outlet is connected to the airbag through a hose.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] In this invention, by setting up feeding components and limiting components, the electrode sheet can be horizontally transported during the electrode sheet extrusion process, and the stability of the electrode sheet during transport and extrusion is ensured, preventing the electrode sheet from bending and deforming. In addition, the surface of the electrode sheet can be cleaned before extrusion, thereby improving the quality of the electrode sheet extrusion process. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall external structure provided according to this utility model is shown;

[0021] Figure 2 The present invention provides Figure 2 A partially enlarged structural diagram;

[0022] Figure 3 The present invention provides Figure 1 Side view structural diagram.

[0023] Legend: 1. Processing table; 2. Extrusion roller assembly; 3. Feeding roller; 4. Fixing frame; 5. Mounting frame; 6. Guide rod; 7. Limiting roller; 8. First spring; 9. Side plate; 10. Second spring; 11. Airbag; 12. Eccentric wheel. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3 This utility model provides a technical solution: an extrusion device for the production of solid-state lithium battery electrode sheets, including a processing table 1, on which an extrusion roller group 2 is installed. From left to right, the processing table 1 is also provided with a conveyor belt and two sets of robotic arms. The extrusion roller group 2 includes an upper roller and a lower roller. During operation, the movement of the robotic arms is controlled by a guide rail. The robotic arms are used to grab and feed the material, and the material is extruded through the extrusion roller group 2. After extrusion, the material is picked up and unloaded by another set of robotic arms. The processing table 1 is also equipped with a feeding component for assisting in the conveying of electrode sheets. The feeding component includes a feeding roller 3.

[0026] The feeding component also includes a fixed frame 4 set on the processing table 1. The feeding roller 3 is provided in two sets and rotatably mounted on the fixed frame 4. Since the lithium battery electrode sheet is thin, it is easy to deform and bend if there is no support. At this time, the feeding roller 3 can support the electrode sheet and ensure the smooth transport of the electrode sheet.

[0027] The upper end of the fixed frame 4 is also equipped with a limiting component that cooperates with the feeding roller 3. The limiting component includes a mounting frame 5 installed on the upper end of the fixed frame 4. A guide rod 6 runs vertically through the middle of the mounting frame 5. A limiting roller 7 is rotatably installed at the bottom of the guide rod 6. The surface of the limiting roller 7 is covered with cleaning cotton. A first spring 8 is also sleeved on the surface of the guide rod 6. Since the electrode sheet will inevitably bend or tilt upwards when the extrusion roller group 2 extrudes the electrode sheet, the limiting roller 7 and the feeding roller 3 can limit the electrode sheet and ensure that the electrode sheet remains stable during the extrusion process. At the same time, the cleaning cotton can be used to clean the surface of the electrode sheet during the transport of the electrode sheet, ensuring the effect of the extrusion process.

[0028] The mounting frame 5 is also slidably fitted with side plates 9. There are two sets of side plates 9 arranged vertically and symmetrically. The mounting frame 5 is also fitted with a fixing plate. A second spring 10 is provided between the fixing plate and the side plates 9. During the extrusion process, even if the electrode sheets of different models and specifications are clamped and positioned by a robotic arm, horizontal displacement will inevitably occur during transportation, which will easily lead to deviations during extrusion. At this time, the two sets of side plates 9 are used to limit and position the electrode sheets by using the side walls. The second spring can be used to adapt to electrode sheets of different widths. In order to better transport the electrode sheets, the end of the side plate 9 can be set to be inclined to facilitate the transport of the electrode sheets.

[0029] Airbags 11 are installed at the bottom of both ends of the mounting frame 5. An eccentric wheel 12 that cooperates with the airbag 11 is also provided on the rotating shaft of the feeding roller 3. An air outlet is opened on the surface of the side plate 9. The air outlet is connected to the airbag 11 through a hose. The side wall of the airbag 11 is also provided with an air inlet. Both the air inlet and the hose are equipped with a one-way valve. At the same time, a spring is provided inside the airbag 11 to facilitate its reset. When the feeding roller 3 rotates to convey the electrode sheet, the rotating shaft of the feeding roller 3 will drive the eccentric wheel 12 to rotate. The eccentric wheel 12 will then squeeze the airbag 11, causing the gas in the airbag 11 to be blown out from the air outlet on the surface of the side plate 9 to clean the surface of the electrode sheet. With the help of cleaning cotton, a double cleaning effect is achieved.

[0030] Working principle: During operation, the movement of the robotic arm is controlled by the guide rail. The robotic arm grips and feeds the material, which is then extruded by the extrusion roller group 2. After extrusion, another set of robotic arms grabs and unloads the material. The processing table 1 is also equipped with a feeding component for assisting in the conveying of electrode sheets. The feeding component includes a feeding roller 3. Through the cooperation of the limiting roller 7 and the feeding roller 3, the electrode sheets can be limited, ensuring that the electrode sheets remain stable during the extrusion process. At the same time, cleaning cotton can be used to clean the surface of the electrode sheets during the conveying process. To ensure the effectiveness of the extrusion process, two sets of side plates 9 are used to limit and position the electrode sheets. The second spring can accommodate electrode sheets of different widths. For better electrode sheet transport, the end of the side plate 9 can be inclined to facilitate electrode sheet transport. When the feeding roller 3 rotates to transport the electrode sheet, the shaft of the feeding roller 3 drives the eccentric wheel 12 to rotate. The eccentric wheel 12 then squeezes the air bag 11, causing the gas inside the air bag 11 to be blown out from the air outlet on the surface of the side plate 9 to clean the surface of the electrode sheet. With the help of cleaning cotton, a double cleaning effect is achieved.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An extrusion apparatus for producing solid-state lithium battery electrode sheets, comprising a processing table (1), on which an extrusion roller group (2) is mounted, and from left to right, a conveyor belt and two sets of robotic arms are also sequentially arranged on the processing table (1), characterized in that, The extrusion roller group (2) includes an upper roller and a lower roller. The processing table (1) is also equipped with a feeding component for assisting in the conveying of electrode sheets. The feeding component includes a feeding roller (3).

2. The extrusion apparatus for producing solid-state lithium battery electrode sheets according to claim 1, characterized in that, The feeding component also includes a fixed frame (4) set on the processing table (1). The feeding roller (3) is provided in two sets and is rotatably installed on the fixed frame (4). The upper end of the fixed frame (4) is also equipped with a limiting component that cooperates with the feeding roller (3).

3. An extrusion apparatus for producing solid-state lithium battery electrode sheets according to claim 2, characterized in that, The limiting component includes a mounting bracket (5) installed on the upper end of the fixed frame (4). A guide rod (6) runs through the middle of the mounting bracket (5) from top to bottom. A limiting roller (7) is rotatably installed at the bottom of the guide rod (6). The surface of the limiting roller (7) is covered with cleaning cotton. A first spring (8) is also sleeved on the surface of the guide rod (6).

4. An extrusion apparatus for producing solid-state lithium battery electrode sheets according to claim 3, characterized in that, The mounting bracket (5) is also slidably fitted with a side plate (9). The side plate (9) is provided in two sets and is vertically symmetrically distributed. The mounting bracket (5) is also fitted with a fixing plate. A second spring (10) is provided between the fixing plate and the side plate (9).

5. An extrusion apparatus for producing solid-state lithium battery electrode sheets according to claim 4, characterized in that, Airbags (11) are installed at the bottom of both ends of the mounting bracket (5). An eccentric wheel (12) that cooperates with the airbag (11) is also provided on the shaft of the feeding roller (3). An air outlet is provided on the surface of the side plate (9). The air outlet is connected to the airbag (11) through a hose.

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