一种锂电池盖板极片冲切模具
By designing a lithium battery cover plate electrode punching die with detachable ejector pins and blanking structure components, the problem of complex and difficult-to-replace existing die structures has been solved, enabling efficient processing of electrode sheets of different shapes and improving the applicability and production efficiency of the die.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ZHIHONG PRECISION MOLD CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-17
AI Technical Summary
Existing lithium battery electrode punching dies have complex structures, are difficult to install and replace, and cannot meet the processing requirements of electrode sheets of different shapes, resulting in low practicality.
A die for punching lithium battery cover plates and electrodes was designed. It adopts a detachable ejector pin and blanking structure. The punching assembly realizes the precise punching and collection of workpieces. The die has a simple structure and is detachable, making it easy to replace.
It improves the applicability and production efficiency of molds, simplifies processes, and enables flexible processing of electrode sheets of different shapes.
Smart Images
Figure CN224508181U_ABST
Abstract
Claims
1. A die for punching electrode sheets for lithium batteries, comprising a die base (1), characterized in that: The bottom of the mold base (1) is equipped with a receiving component (2). The mold base (1) is provided with a material groove (3). The material groove (3) is equipped with a pressing component (4). The pressing component (4) is provided with guide posts (5) around its perimeter. The guide posts (5) are provided with a punching component (6) that can move up and down. The guide posts (5) are connected to the mold base (1) below. The mold base (1) is provided with several detachable dropping structure components (7). The punching component (6) punches the strip in the material groove (3), so that the workpiece in the strip falls from the dropping structure component (7) into the receiving component (2).
2. The lithium battery cover plate tab punching die according to claim 1, characterized in that: The punching assembly (6) includes an upper pressure plate (61), a clamping plate (62), a lower pressure plate (63), and a number of detachable ejector pins (64) installed in the clamping plate (62). The upper pressure plate (61) is provided with guide sleeves (65) connected to the guide post (5) around its perimeter. The number of detachable ejector pins (64) are correspondingly arranged with the number of detachable blanking structures (7). The punching assembly (6) passes the number of detachable ejector pins (64) through the number of detachable blanking structures (7) to complete the punching.
3. The lithium battery cover plate tab punching die according to claim 2, characterized in that: The plurality of detachable ejector pins (64) include a connecting end (641) connected to a clamping plate (62) and a working end (642) extending along the connecting end (641) for passing through the blanking structure (7), the working end (642) being smaller than the connecting end (641).
4. The lithium battery cover plate electrode punching die according to claim 3, characterized in that: The working end (642) of the ejector pin (64) is rectangular.
5. The lithium battery cover plate tab punching die according to claim 4, characterized in that: The blanking structure (7) includes a punching end (71) and a blanking end (72) vertically installed at the bottom of the punching end (71). The top of the punching end (71) is flush with the bottom of the material groove (3). The blanking end (72) penetrates the bottom of the mold base (1). The punching end (71) is provided with a rectangular hole (711) through which the working end (642) can pass. The blanking end (72) is hollow (721).
6. The lithium battery cover plate tab punching die according to claim 1, characterized in that: The pressing assembly (4) includes pressing plates (41) disposed on both sides of the material trough (3). The pressing plates (41) on both sides extend pressing edges (411) into the material trough (3) respectively, and pressing strips (412) extend from the bottom of the pressing edges (411) toward the material trough (3).
7. The lithium battery cover plate tab punching die according to claim 1, characterized in that: The receiving component (2) is a collection box.