A battery shell upper cover material-saving mold
The battery casing cover mold, designed with limiting protrusions and positioning grooves, solves the problem of material waste in existing molds, achieving material savings and improved molding precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU DONGYUE NEW ENERGY TECH CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-26
AI Technical Summary
Existing battery casing cover molds require large sheet metal lengths and widths during processing, leading to material waste and increased costs.
The design employs a limiting protrusion and positioning groove structure, combined with a spring system for the upper and lower pressure plates. By precisely controlling the movement of the upper cutting block and the lower pressure plate, the sheet metal can be accurately formed, avoiding offset and material waste.
It effectively saves material costs, reduces resource waste, lowers press energy consumption, and ensures sheet metal forming accuracy and efficiency.
Smart Images

Figure CN224406158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of battery casing cover mold structure, and in particular to a material-saving mold for battery casing covers. Background Technology
[0002] Material-saving molds for battery casing covers typically refer to molds that reduce material usage by optimizing mold design while ensuring product quality and functionality. This mold design aims to reduce production costs while ensuring that product performance and appearance are not affected.
[0003] A search revealed that authorization announcement number CN222890546U discloses a battery steel shell molding mechanism in the field of battery steel shell molding technology. The mechanism includes a lower mold, an upper mold below the lower mold, a pressure injection mechanism in front of the lower mold, and a molding mechanism between the lower and upper molds. A hydraulic rod is fixedly installed at the rear end of the injection pipe, and a transmission rod is connected to the transmission end of the hydraulic rod. A connecting plate is fixedly installed at the end of the transmission rod away from the hydraulic rod, and a pressure plug is fixedly installed at the front end of the connecting plate. This battery steel shell molding mechanism adds a pressure injection mechanism and a molding mechanism. The pressure injection mechanism adopts a squeeze-type liquid delivery structure, squeezing air to compress the liquid, thereby quickly guiding the molten metal to the molding area. This effectively reduces the time for the molten metal to flow into the mold, improving the overall efficiency of the molding operation. The molding mechanism has three sets of battery steel shell forming areas, allowing for the production of three sets of battery steel shells in a single molding operation, thus improving production efficiency.
[0004] However, existing battery case cover molds directly stamp the battery case cover using upper and lower molds, which requires the sheet material to have a large length and width, resulting in material waste. Therefore, there is an urgent need in the market for a material-saving mold for battery case covers to solve these problems. Utility Model Content
[0005] The purpose of this utility model is to provide a material-saving mold for battery casing top cover, so as to solve the problem mentioned in the background art that the existing battery casing top cover mold directly stamps the battery casing top cover through the upper and lower molds, which requires the sheet material to have a large length and width, thus wasting raw materials.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A material-saving mold for a battery casing cover includes an upper pressure plate, with limiting protrusions at both ends of the upper pressure plate and a limiting mounting groove at one end of each limiting protrusion. A forming extrusion end is located at the lower end of the upper pressure plate. An upper pressure plate spring is installed above the upper pressure plate. Upper cutting blocks are installed on both sides of the upper pressure plate, with a limiting mounting groove at one end of each cutting block and a limiting protrusion at one end of each groove. A mold core is installed below the upper pressure plate, with a forming support end at the upper end of the mold core. The forming support end has arc-shaped edges around its perimeter. Positioning grooves are located at the four corners of the mold core. Lower pressure plates are installed on both sides of the mold core, with a lower pressure plate spring installed below each lower pressure plate. A sheet material is placed above the forming support end.
[0008] Preferably, there are sixteen upper pressure plate springs, which are distributed sequentially above the upper pressure plate.
[0009] Preferably, the limiting protrusion one and the upper pressure plate are an integral structure, the limiting protrusion one is correspondingly provided with the limiting mounting groove two, and the limiting protrusion one is located inside the limiting mounting groove two.
[0010] Preferably, the second limiting protrusion and the upper blade block are an integral structure, the second limiting protrusion is correspondingly provided with the first limiting mounting groove, and the second limiting protrusion is located inside the first limiting mounting groove.
[0011] Preferably, the forming support end is provided corresponding to the forming extrusion end, and both ends of the lower pressure plate are provided with positioning seats corresponding to the positioning grooves, and the positioning seats and the lower pressure plate are an integral structure.
[0012] Preferably, there are two lower pressure plates, which are symmetrical about the vertical center line of the mold core, and there are two upper cutting blocks, which are symmetrical about the vertical center line of the upper pressure plate.
[0013] Preferably, there are twelve lower pressure plate springs, which are distributed sequentially below the lower pressure plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] (1) This utility model places the sheet material above the forming support end set on the upper end of the mold core, and then moves the upper pressure plate and the upper blade block downward. When the upper pressure plate closes with the mold core, the upper blade block closes with the lower pressure plate. Then the upper blade block moves downward by the force of the machine tool, and squeezes the lower pressure plate spring installed under the lower pressure plate. This causes the lower pressure plate to move downward, so that the sheet material can be squeezed and formed. This process can effectively save material costs and avoid resource waste. At the same time, the installed upper and lower pressure plate springs can save press energy consumption.
[0016] (2) This utility model, through the correspondingly provided limiting protrusion one and limiting mounting groove two, and the correspondingly provided limiting protrusion two and limiting mounting groove one, enables the upper pressure plate to move in contact with the upper pressure plate when the upper pressure plate and the mold core are closed, and when the upper cutting block and the lower pressure plate are closed, so that the upper cutting block can move in contact with the upper pressure plate when it continues to move, thus avoiding deviation. Through the correspondingly provided positioning groove and positioning seat, it enables the lower pressure plate to move in contact with the mold core when the upper cutting block squeezes the lower pressure plate, thus avoiding deviation during the movement, thereby affecting the effect of sheet metal processing. Attached Figure Description
[0017] Figure 1 This is a perspective view of the entire utility model;
[0018] Figure 2 This is an overall bottom view of the present invention;
[0019] Figure 3 This is an overall exploded view of the present invention;
[0020] Figure 4 For the present utility model Figure 1 A magnified view of a portion of area A;
[0021] Figure 5 For the present utility model Figure 3 A magnified view of a portion of area B.
[0022] In the diagram: 1. Upper pressure plate; 101. Limiting protrusion one; 102. Limiting mounting groove one; 103. Forming extrusion end; 2. Upper blade block; 201. Limiting mounting groove two; 202. Limiting protrusion two; 3. Upper pressure plate spring; 4. Mold core; 401. Positioning groove; 402. Forming support end; 403. Arc edge; 5. Lower pressure plate; 501. Positioning seat; 6. Lower pressure plate spring; 7. Sheet metal. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Please see Figures 1-5This utility model provides an embodiment of a material-saving mold for a battery casing cover, comprising an upper pressure plate 1, with limiting protrusions 101 at both ends of the upper pressure plate 1, and a limiting mounting groove 102 at one end of each limiting protrusion 101. A forming extrusion end 103 is provided at the lower end of the upper pressure plate 1. Sixteen upper pressure plate springs 3 are installed above the upper pressure plate 1, arranged sequentially above it. Upper cutting blocks 2 are installed on both sides of the upper pressure plate 1, with a limiting mounting groove 201 inside one end of each cutting block 2, and a limiting protrusion 202 at one end of each limiting mounting groove 201. A mold core 4 is installed below the upper pressure plate 1, with a forming support end 402 at the upper end of the mold core 4, and arc-shaped edges 403 around the forming support end 402. The core 4 has positioning grooves 401 at each of its four corners. Lower pressure plates 5 are installed on both sides of the core 4, and lower pressure plate springs 6 are installed below the lower pressure plates 5. There are twelve lower pressure plate springs 6, arranged sequentially below the lower pressure plates 5. A sheet material 7 is placed on the upper end of the forming support end 402. The sheet material 7 is supported by the upper pressure plate 1 and the core 4. The sheet material 7 is formed by the upper cutting block 2 and the lower pressure plate 5. The upper pressure plate springs 3 and 6 improve the buffering effect of the extrusion forming process, preventing damage to the mold due to collisions during extrusion forming. It should be noted that, to save space and highlight the innovative elements of this patent, such as the specific working principle and process of how the mold processes the sheet material, this patent will not elaborate on these details.
[0025] See Figure 3 and Figure 4 The limiting boss 101 and the upper pressure plate 1 are integral structures. The limiting boss 101 is correspondingly set with the limiting mounting groove 201. The limiting boss 101 is located inside the limiting mounting groove 201. The limiting boss 202 and the upper cutting block 2 are integral structures. The limiting boss 202 is correspondingly set with the limiting mounting groove 102. The limiting boss 202 is located inside the limiting mounting groove 102. The correspondingly set limiting boss 101 and limiting mounting groove 201 and the correspondingly set limiting boss 202 and limiting mounting groove 102 enable the upper pressure plate 1 and the mold core 4 to be closed, and the upper cutting block 2 and the lower pressure plate 5 to be closed. When the upper cutting block 2 continues to move, it can be made to fit against the upper pressure plate 1 to move, avoiding deviation and affecting the extrusion molding effect of the sheet 7.
[0026] See Figures 1-5The forming support end 402 is correspondingly set to the forming extrusion end 103. Both ends of the lower pressure plate 5 are provided with positioning seats 501 corresponding to the positioning grooves 401. The positioning seats 501 and the lower pressure plate 5 are integral structures. There are two lower pressure plates 5, and the two lower pressure plates 5 are symmetrical about the vertical center line of the mold core 4. There are two upper blade blocks 2, and the two upper blade blocks 2 are symmetrical about the vertical center line of the upper pressure plate 1. Through the corresponding positioning grooves 401 and positioning seats 501, when the upper blade blocks 2 extrude the lower pressure plate 5, the lower pressure plate 5 can move in close contact with the mold core 4, avoiding deviation during the movement, which would affect the processing effect of the sheet metal 7.
[0027] Working principle: In use, the sheet metal 7 is placed above the forming support end 402 set on the upper end of the mold core 4. Then, by moving the upper pressure plate 1 and the upper blade block 2 downward, when the upper pressure plate 1 closes with the mold core 4, the upper blade block 2 closes with the lower pressure plate 5. Then, the upper blade block 2 moves downward by the force of the machine tool, causing the upper blade block 2 to press the lower pressure plate spring 6 installed under the lower pressure plate 5. This causes the lower pressure plate 5 to move downward, so that the sheet metal 7 can be extruded and formed. Through the correspondingly set limiting protrusion 101 and limiting mounting groove 20, the sheet metal 7 is formed. The corresponding limiting protrusion 202 and limiting mounting groove 102 enable the upper pressure plate 1 and mold core 4 to close, and the upper cutting block 2 and lower pressure plate 5 to close. When the upper cutting block 2 continues to move, it can move in contact with the upper pressure plate 1 to avoid deviation. Through the corresponding positioning groove 401 and positioning seat 501, when the upper cutting block 2 presses the lower pressure plate 5, the lower pressure plate 5 can move in contact with the mold core 4 to avoid deviation during the movement, which would affect the processing effect of the sheet metal 7.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A material-saving mold for a battery case upper cover, comprising an upper platen (1), characterized in that: Both ends of the upper pressure plate (1) are provided with a limiting protrusion (101), and one end of the limiting protrusion (101) is provided with a limiting mounting groove (102). An upper pressure plate spring (3) is installed above the upper pressure plate (1). Both sides of the upper pressure plate (1) are provided with upper blade blocks (2). One end of the upper blade block (2) is provided with a limiting mounting groove (201). One end of the limiting mounting groove (201) is provided with a limiting protrusion (202). A mold core (4) is installed below the upper pressure plate (1). A positioning groove (401) is provided at each of the four corners of the mold core (4). Both sides of the mold core (4) are provided with lower pressure plates (5). A lower pressure plate spring (6) is installed below the lower pressure plate (5).
2. The material-saving mold for the upper cover of a battery case according to claim 1, characterized in that: There are sixteen upper pressure plate springs (3), which are arranged sequentially above the upper pressure plate (1).
3. The material-saving mold for the upper cover of a battery case according to claim 2, characterized in that: The limiting protrusion one (101) and the upper pressure plate (1) are an integral structure. The limiting protrusion one (101) is correspondingly provided with the limiting mounting groove two (201). The limiting protrusion one (101) is located inside the limiting mounting groove two (201).
4. The material-saving mold for covering a battery case according to claim 3, wherein: The second limiting protrusion (202) and the upper blade block (2) are an integral structure. The second limiting protrusion (202) is correspondingly set with the first limiting mounting groove (102). The second limiting protrusion (202) is located inside the first limiting mounting groove (102).
5. The material-saving mold for covering a battery case according to claim 4, wherein: Both ends of the lower pressure plate (5) are provided with positioning seats (501) corresponding to the positioning grooves (401), and the positioning seats (501) and the lower pressure plate (5) are an integral structure.
6. The material-saving mold for covering a battery case according to claim 5, wherein: There are two lower pressure plates (5), which are symmetrical about the vertical center line of the mold core (4). There are two upper blades (2), which are symmetrical about the vertical center line of the upper pressure plate (1).
7. The material-saving mold for covering a battery case according to claim 6, wherein: There are twelve lower pressure plate springs (6), which are arranged sequentially below the lower pressure plate (5).
8. The material-saving mold for covering a battery case according to claim 7, wherein: The lower end of the upper pressure plate (1) is provided with a forming extrusion end (103), and the upper end of the mold core (4) is provided with a forming support end (402). The forming support end (402) is provided in correspondence with the forming extrusion end (103).
9. The material-saving mold for covering a battery case according to claim 8, wherein: A sheet (7) is placed on the upper end of the forming support end (402), and both ends of the sheet (7) are located on the upper end of the lower pressure plate (5).
10. A material-saving mold for a battery casing cover according to claim 9, characterized in that: The molded support end (402) is provided with an arc-shaped edge (403) around its perimeter.