Solid-state battery electrode plate processing extruder

By introducing pressure sensors and control systems into the electrode sheet processing equipment, the shortcomings in the extrusion pressure degree adjustment of the existing equipment are solved, stable shaping and quality control of the electrode sheet are achieved, and the practicality of the equipment and the yield rate of the electrode sheet are improved.

CN223066219UActive Publication Date: 2025-07-04WUHAN GULI NEW ENERGY BATTERY CO LTD

Patent Information

Application Number
CN202421874374.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-05
Publication Date
2025-07-04
Estimated Expiration
2034-08-05

AI Technical Summary

Technical Problem

The existing lithium battery electrode sheet processing equipment is not flexible enough in adjusting the extrusion pressure, which leads to the extrusion pressure of electrode sheets of different thicknesses that are prone to excessive or too small extrusion pressure, resulting in damage or unqualified shape of the electrode sheet, which reduces the practicality of the equipment.

Method used

A solid-state battery electrode sheet processing and extruder is designed, which adopts a combined structure of frame, mold, cylinder, connection plate, connection block, connection spring, moving seat, connecting rod, concave block, moving plate, pressure sensor and controller. The extrusion pressure degree is monitored and controlled in real time through the pressure sensor to ensure that it is within the specified range and avoid excessive or excessively small pressure.

Benefits of technology

The stable extrusion and shaping of the electrode sheet is achieved, which avoids damage to the electrode sheet, improves the practicality of the equipment and adjustability of the extrusion process, and ensures the consistency of the quality of the electrode sheet.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a solid-state battery electrode slice processing extruder, which relates to the technical field of battery electrode slice processing, and comprises a rack, an extrusion mechanism is arranged in the rack, the extrusion mechanism comprises three moulds, the bottom surface of each mould is fixedly connected with the inner wall of the rack, two cylinders are fixedly arranged on the inner top wall of the rack, and the cylinders are fixedly connected with the rack. A connecting plate is fixedly installed at the telescopic ends of the two air cylinders jointly, a connecting block is fixedly installed on the bottom face of the connecting plate, two connecting springs are fixedly installed on the two side faces of the connecting block, a moving seat is fixedly installed at the end, away from the connecting block, of each connecting spring, and a connecting rod is movably hinged to the interior of each moving seat; a concave block is movably hinged to the bottom end of each set of connecting rods, a movable plate is fixedly installed on the bottom faces of the two concave blocks, and pressure sensors are fixedly installed on the bottom faces of the connecting blocks. And the rack and the extrusion mechanism are matched for use, so that a worker can conveniently adjust the pressure on the electrode plate.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery electrode sheet processing, in particular to an extrusion machine for processing solid-state battery electrode sheets. Background Art

[0002] As a common type of battery, lithium batteries are ideal chemical energy sources in themselves, with advantages such as small size, light weight, long lifespan, and environmental friendliness. Correspondingly, the performance and quality of lithium batteries are directly related to the quality of the electrode sheets. During the processing of battery electrode sheets, an extrusion machine is often used to extrude and shape them.

[0003] The utility model with the authorization announcement number CN217405462U discloses an extrusion molding device for producing lithium battery electrode sheets, including an assembly board. Fixed frames are installed on both sides of the assembly board, and a heat dissipation fan is arranged in the middle of the fixed frames. An operating table is arranged at the bottom of the fixed frames. A hydraulic cylinder is arranged at the lower middle part of the assembly board, and an installation component is connected to the lower end of the hydraulic cylinder. The lower end of the installation component is connected to an upper mold, and a shock absorption component is connected below the upper mold. The lower end of the upper mold is provided with a lower mold, and extrusion grooves are opened on both sides of the lower mold. Taking mold components are arranged at both ends of the middle part of the lower mold. A forming plate is installed in the upper middle part of the taking mold components, and an electric sheet is installed above the forming plate.

[0004] Although this device can automatically eject the electric sheet on the upper end of the forming plate, thus effectively and quickly taking the electric sheet, when this device is in use, due to the relatively fixed structure of the device, it is not convenient to adjust the corresponding extrusion force. Therefore, when using the above device to extrude and shape electrode sheets with different thicknesses, the phenomenon of excessive or insufficient extrusion force is likely to occur, which in turn makes the electrode sheets prone to damage or unqualified shaping, thereby reducing the practicality of the device. For this reason, we provide an extrusion machine for processing solid-state battery electrode sheets to solve the above problems. Summary of the Utility Model

[0005] The purpose of the present utility model is to make up for the deficiencies of the prior art and provide an extrusion machine for processing solid-state battery electrode sheets.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A solid-state battery electrode sheet processing extruder, including a frame, an extrusion mechanism is arranged inside the frame, the extrusion mechanism includes three molds, the bottom surface of each mold is fixedly connected to the inner wall of the frame, two cylinders are fixedly installed on the inner top wall of the frame, a connecting plate is fixedly installed on the telescopic ends of the two cylinders together, a connecting block is fixedly installed on the bottom surface of the connecting plate, two connecting springs are fixedly installed on both side surfaces of the connecting block, one end of each connecting spring away from the connecting block is fixedly installed with a moving seat, a connecting rod is movably hinged inside each moving seat, the bottom ends of each group of connecting rods are movably hinged with a concave block, a moving plate is fixedly installed on the common bottom surface of the two concave blocks, a pressure sensor is fixedly installed on the bottom surface of the connecting block, the detection end of the pressure sensor is in contact with the upper surface of the moving plate, three extrusion plates are fixedly installed on the bottom surface of the moving plate, and a controller is fixedly installed on the left side surface of the frame.

[0007] Preferably, three hydraulic rods are fixedly installed on the inner wall of the frame, the telescopic end of each hydraulic rod penetrates through the frame and is fixedly installed with a placement plate, and two electric push rods are fixedly installed on the inner wall of the frame, and the telescopic ends of the two electric push rods are fixedly installed with push plates.

[0008] Preferably, a base is fixedly installed on the bottom surface of the frame, and two groups of universal wheels are fixedly installed on the bottom surface of the base.

[0009] Preferably, a trapezoidal block is fixedly installed on the inner wall of the frame, and a collection box is fixedly installed on the front surface of the frame.

[0010] Preferably, dampers are fixedly installed on both side surfaces of the connecting block, and the telescopic end of each damper is fixedly connected to the side surface of the moving seat close to the connecting block.

[0011] Preferably, two groups of telescopic columns are fixedly installed on the bottom surface of the connecting plate, and the telescopic end of each telescopic column is fixedly connected to the upper surface of the moving plate.

[0012] Preferably, a protective shell is fixedly installed on the left side surface of the frame, and a protective cover is movably hinged on the left side surface of the protective shell.

[0013] Beneficial effects:

[0014] Compared with the prior art, the solid-state battery electrode sheet processing and extrusion machine has the following beneficial effects: By setting up a frame, a mold, a cylinder, a connecting plate and an extrusion plate, the power provided by the cylinder drives the connecting plate and the extrusion plate to move downward, so that the extrusion plate presses the electrode sheet inside the mold, thus achieving the purpose of extruding and shaping the electrode sheet. By setting up a connecting block, a connecting spring, a moving seat, a connecting rod, a concave block, a moving plate, a pressure sensor and a controller, the worker can input the required pressure range through the controller. When extruding the electrode sheet, the pressure sensor monitors the pressure on the electrode sheet in real time. When the pressure sensor monitors that the pressure on the electrode sheet reaches the specified range, the controller controls the cylinder to stop moving, which facilitates the worker to adjust the pressure on the electrode sheet, and thus minimizes the occurrence of excessive or insufficient pressure on the electrode sheet, thereby increasing the practicality of the device. Description of the Drawings

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

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the cross-sectional view of the frame of the present utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the bottom view cross-sectional view of the frame of the present utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the bottom view cross-sectional view of the moving plate of the present utility model.

[0019] In the figure: 1. Frame; 2. Extrusion mechanism; 201. Mold; 202. Cylinder; 203. Connecting plate; 204. Connecting block; 205. Connecting spring; 206. Moving seat; 207. Connecting rod; 208. Concave block; 209. Moving plate; 210. Pressure sensor; 211. Extrusion plate; 212. Controller; 213. Hydraulic rod; 214. Placing plate; 215. Electric push rod; 216. Push plate; 217. Base; 218. Universal wheel; 219. Trapezoidal block; 220. Collection box; 221. Damper; 222. Telescopic column; 223. Protective shell; 224. Protective cover. Detailed Embodiments

[0020] The principles and features of the present utility model are described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0021] Refer to Figure 1 and Figure 2, including a frame 1, an extrusion mechanism 2 is arranged inside the frame 1, the extrusion mechanism 2 includes three molds 201, the bottom surface of each mold 201 is fixedly connected to the inner wall of the frame 1, three hydraulic rods 213 are fixedly installed on the inner wall of the frame 1, the telescopic end of each hydraulic rod 213 penetrates the frame 1 and is fixedly installed with a placement plate 214, two electric push rods 215 are fixedly installed on the inner wall of the frame 1, and the telescopic ends of the two electric push rods 215 are fixedly installed with push plates 216, so that when the electrode sheet is extruded and finalized, the power provided by the hydraulic rod 213 is used to cooperate with the placement plate 214 to push the electrode sheet out of the mold 201, and then the power provided by the electric push rod 215 drives the push plate 216 to push the electrode sheet out of the mold 201, thereby playing a role of automatic unloading, thereby reducing the workload of workers and increasing the practicality of the device.

[0022] Reference Figures 1-4 Two cylinders 202 are fixedly installed on the inner top wall of the frame 1, and a connecting plate 203 is fixedly installed on the telescopic ends of the two cylinders 202. A base 217 is fixedly installed on the bottom surface of the frame 1, and two sets of universal wheels 218 are fixedly installed on the bottom surface of the base 217. The installation of the base 217 and the universal wheels 218 makes it convenient for workers to move the device, thereby increasing the convenience of moving the device.

[0023] Reference Figure 3 and Figure 4 A connecting block 204 is fixedly installed on the bottom surface of the connecting plate 203, and two connecting springs 205 are fixedly installed on both side surfaces of the connecting block 204. A moving seat 206 is fixedly installed on one end of each connecting spring 205 away from the connecting block 204. Dampers 221 are fixedly installed on both side surfaces of the connecting block 204. The telescopic end of each damper 221 is fixedly connected to a side of the moving seat 206 close to the connecting block 204. The installation of the damper 221 plays a certain buffering role, thereby buffering the device when it contacts the electrode sheet, so that the device is subjected to a large impact for a long time, affecting the use of the device.

[0024] Reference Figure 3 and Figure 4 Each movable seat 206 has a connecting rod 207 movably hinged inside, and each group of connecting rods 207 has a concave block 208 movably hinged at the bottom end. A movable plate 209 is fixedly installed on the bottom surfaces of the two concave blocks 208. Two groups of telescopic columns 222 are fixedly installed on the bottom surface of the connecting plate 203. The telescopic end of each telescopic column 222 is fixedly connected to the upper surface of the movable plate 209. The installation of the telescopic columns 222 limits the moving trajectory of the movable plate 209, thereby avoiding the phenomenon that the movable plate 209 deviates from the moving trajectory when moving, thereby ensuring the stability of the movement of the movable plate 209.

[0025] Reference Figure 1and Figure 4 A pressure sensor 210 is fixedly installed on the bottom surface of the connecting block 204. The detection end of the pressure sensor 210 is in contact with the upper surface of the moving plate 209. The model of the pressure sensor 210 is MS54XX. A trapezoidal block 219 is fixedly installed on the inner wall of the frame 1, and a collection box 220 is fixedly installed on the front surface of the frame 1. The installation of the trapezoidal block 219 and the collection box 220 serves to collect the electrode sheets after extrusion and shaping, facilitating the centralized processing of the electrode sheets by workers.

[0026] Refer to Figures 1-4 Three extrusion plates 211 are fixedly installed on the bottom surface of the moving plate 209. A controller 212 is fixedly installed on the left side surface of the frame 1, and a protective shell 223 is fixedly installed on the left side surface of the frame 1. A protective cover 224 is movably hinged to the left side surface of the protective shell 223. The installation of the protective shell 223 and the protective cover 224 serves to provide safety protection for the controller 212, thus minimizing the impact of the controller 212 from external objects and increasing the service life of the controller 212.

[0027] Working principle: When in use, workers first place the electrode sheets to be extruded inside the mold 201. Then, the workers set the magnitude of the pressure to be applied through the controller 212 according to the thickness of the electrode sheets. After that, the air cylinder 202 is used to provide power to drive the connecting plate 203 to move downward. Thus, when the extrusion plate 211 contacts the electrode sheet, the elastic force provided by the connecting spring 205 causes the extrusion plate 211 to drive the concave block 208 to tend to move upward, and at the same time, the connecting rod 207 is used to drive the moving seat 206 to move away from the connecting block 204. Then, the pressure sensor 210 is used to monitor the pressure on the electrode sheet in real time. When the pressure sensor 210 detects that the pressure on the electrode sheet reaches the specified range, the pressure sensor 210 transmits a signal to the controller 212, causing the controller 212 to control the air cylinder 202 to stop moving downward, thus minimizing the excessive pressure on the electrode sheet by the extrusion plate 211 and preventing damage to the electrode sheet, thereby increasing the practicality of the device. After the electrode sheet is extruded, the hydraulic rod 213 is used to provide power to drive the placement plate 214 to move upward, so that the placement plate 214 drives the electrode sheet to move upward. Then, the electric push rod 215 is used to provide power to drive the push plate 216 to move toward the electrode sheet, so that the push plate 216 pushes the electrode sheet away from the mold 201, and it falls into the interior of the collection box 220 after passing through the trapezoidal block 219, thus completing the extrusion process of the electrode sheet.

[0028] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A solid-state battery electrode sheet processing extruder, comprising a frame (1), characterized in that: Inside the frame (1), there is an extrusion mechanism (2) arranged. The extrusion mechanism (2) includes three molds (201). The bottom surface of each mold (201) is fixedly connected to the inner wall of the frame (1). Two cylinders (202) are fixedly installed on the inner top wall of the frame (1). The telescopic ends of the two cylinders (202) are jointly fixedly installed with a connecting plate (203). The bottom surface of the connecting plate (203) is fixedly installed with a connecting block (204). Two connecting springs (205) are fixedly installed on both side surfaces of the connecting block (204). One end of each connecting spring (205) far from the connecting block (204) is fixedly installed with a moving seat (206). Inside each moving seat (206), there is a connecting rod (207) movably hinged. The bottom end of each group of connecting rods (207) is movably hinged with a concave block (208). The bottom surfaces of the two concave blocks (208) are jointly fixedly installed with a moving plate (209). The bottom surface of the connecting block (204) is fixedly installed with a pressure sensor (210). The detection end of the pressure sensor (210) is in contact with the upper surface of the moving plate (209). The bottom surface of the moving plate (209) is fixedly installed with three extrusion plates (211). A controller (212) is fixedly installed on the left side surface of the frame (1).

2. The extrusion machine for processing a solid-state battery electrode sheet according to claim 1, wherein: Three hydraulic rods (213) are fixedly installed on the inner wall of the frame (1). The telescopic end of each hydraulic rod (213) penetrates through the frame (1) and is fixedly installed with a placement plate (214). Two electric push rods (215) are fixedly installed on the inner wall of the frame (1). The telescopic ends of the two electric push rods (215) are fixedly installed with push plates (216).

3. A solid-state battery electrode sheet processing extruder according to claim 1, characterized in that: A base (217) is fixedly installed on the bottom surface of the frame (1). Two groups of universal wheels (218) are fixedly installed on the bottom surface of the base (217).

4. A solid-state battery electrode sheet processing extruder according to claim 1, characterized in that: A trapezoidal block (219) is fixedly installed on the inner wall of the frame (1). A collection box (220) is fixedly installed on the front surface of the frame (1).

5. A solid-state battery electrode sheet processing extruder according to claim 1, characterized in that: Two dampers (221) are fixedly installed on both side surfaces of the connecting block (204). The telescopic end of each damper (221) is fixedly connected to the side surface of the moving seat (206) close to the connecting block (204).

6. The extrusion machine for processing a solid-state battery electrode sheet according to claim 1, characterized in that: Two groups of telescopic columns (222) are fixedly installed on the bottom surface of the connecting plate (203). The telescopic end of each telescopic column (222) is fixedly connected to the upper surface of the moving plate (209).

7. A solid-state battery electrode sheet processing extruder according to claim 1, characterized in that: A protective shell (223) is fixedly installed on the left side surface of the frame (1). A protective cover (224) is movably hinged on the left side surface of the protective shell (223).

Citation Information

Patent Citations

  • Extrusion forming device for lithium battery electrode plate production

    CN217405462U

Cited By

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    CN121260879A

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