Battery cover stamping die with trimming function
By introducing a trimming mechanism into the battery cover stamping die, and using a motor-driven polishing roller for automatic trimming, the problem of low burr removal efficiency after battery cover stamping is solved, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JINGWEI HARDWARE PROD CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-24
Smart Images

Figure CN224542889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of battery cover preparation, specifically a battery cover stamping die with trimming function. Background Technology
[0002] The battery cover is an important component of lithium batteries. Its design and manufacturing directly affect the battery's performance, safety, and lifespan. Its main functions are to prevent the leakage of internal chemical substances, ensure the stable conduction of the battery's charging and discharging current, and prevent damage to the battery from internal short circuits or external environments (such as moisture and dust). During manufacturing, it is mainly produced by stamping.
[0003] Battery cover stamping dies typically consist of an upper die holder and a lower die holder connected to a stamping press. During the stamping process, burrs may form on the edges due to die clearance, cutting edge wear, or process design issues. Therefore, after the cover is removed from the stamping process, it is necessary to trim the edges to avoid affecting subsequent processing and use. In actual production, burrs need to be trimmed using other equipment or manually, which adds an extra step and reduces the production efficiency of battery covers. Utility Model Content
[0004] This utility model provides a battery cover stamping die with a trimming function, which has the advantage of automatically trimming the burrs on the battery cover after stamping, thus solving the problem that existing battery covers require additional equipment processes for trimming after manufacturing.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a battery cover stamping die with trimming function, comprising an upper die base and a lower die base, and further comprising a trimming mechanism, an ejection mechanism and a pushing mechanism, wherein:
[0006] An upper die is installed at the bottom of the upper die base, and a die platform is installed at the top of the lower die base. The die platform is equipped with a die pressing groove and a processing table corresponding to the upper die.
[0007] As another preferred technical solution of this utility model, the processing table is located at the front end of the molding groove, and the top surface of the processing table is parallel to the top surface of the molding groove. The mold table is a rectangular table, and a groove is opened at the front end. The molding groove and the processing table are both fixed in the groove of the mold table.
[0008] The trimming mechanism includes a first trimming component and a second trimming component, both of which include different polishing rollers mounted on the processing table by a motor drive.
[0009] As another preferred technical solution of this utility model, the first trimming component includes mounting platforms symmetrically installed on both sides of the top of the processing table. A first polishing roller is rotatably connected to the mounting platform through a shaft hole. A first motor is installed on the side end of the mounting platform, and the output shaft of the first motor is fixedly connected to the first polishing roller.
[0010] As another preferred technical solution of this utility model, a processing groove is provided on the top of the processing table near the molding groove. A second polishing roller is rotatably connected to the processing groove through a shaft hole. The top of the second polishing roller is slightly higher than the top surface of the processing table. A second motor is installed on the side of the mold table, and the output shaft of the second motor is fixedly connected to the second polishing roller.
[0011] The ejection mechanism is located at the bottom of the molding groove and is used to eject the stamped cover plate.
[0012] As another preferred technical solution of this utility model, the ejection mechanism includes multiple ejection cylinders installed in the mold table, the output rod of the ejection cylinder is equipped with a lifting platform, and the top of the lifting platform is equipped with multiple ejector rods that cooperate with the molding groove.
[0013] As another preferred technical solution of this utility model, the push rods are arranged in a rectangular equidistant pattern, and the top of the molding groove is provided with multiple through top holes, which are movably connected to and vertically corresponding to the push rods.
[0014] The pushing mechanism is located at the rear end of the lower mold base and is used to push the ejected cover plate into the molding groove.
[0015] As another preferred technical solution of this utility model, the pushing mechanism includes a mounting frame installed at the rear end of the mold table, a pushing cylinder is installed on the top of the mounting frame, and a pusher is installed on the output rod of the pushing cylinder at the rear end of the molding groove, the pusher corresponding to the processing table.
[0016] Compared with the prior art, this utility model provides a battery cover stamping die with trimming function, which has the following beneficial effects:
[0017] This invention uses an ejector mechanism to eject the stamped battery cover plate, and a pusher mechanism to push the cover plate into the molding groove. During the pushing process, the first trimming part and the second trimming part can automatically polish the burrs on the bottom and side of the battery cover plate. The trimming of the cover plate is completed during the unloading process, eliminating the need for additional equipment to process the burrs and improving the production efficiency of battery cover plate stamping. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2This is a schematic diagram of the top structure of the lower mold base of this utility model;
[0020] Figure 3 This is a schematic diagram showing the installation position of the trimming mechanism of this utility model;
[0021] Figure 4 This is a schematic diagram of the ejection mechanism of this utility model;
[0022] Figure 5 This is a schematic diagram of the pushing mechanism of this utility model.
[0023] In the diagram: 1. Upper mold base; 11. Upper pressure mold; 2. Lower mold base; 21. Mold table; 22. Molding groove; 221. Top hole; 23. Processing table; 231. Processing groove; 3. Trimming mechanism; 31. First trimming part; 311. Mounting table; 312. First motor; 313. First polishing roller; 32. Second trimming part; 321. Second motor; 322. Second polishing roller; 4. Pushing mechanism; 41. Mounting frame; 42. Pushing cylinder; 43. Pushing table; 5. Ejection mechanism; 51. Ejection cylinder; 52. Lifting table; 53. Ejector rod. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1
[0025] Please see the appendix Figures 1-5 This utility model discloses a battery cover stamping die with a trimming function, including an upper die base 1 and a lower die base 2, and also includes a trimming mechanism 3, an ejection mechanism 5 and a pushing mechanism 4, wherein:
[0026] The upper mold base 1 has an upper mold 11 installed at the bottom, and the lower mold base 2 has a mold platform 21 installed at the top. The mold platform 21 has a molding groove 22 and a processing table 23 corresponding to the upper mold 11.
[0027] The trimming mechanism 3 includes a first trimming component 31 and a second trimming component 32, both of which include different polishing rollers that are driven by a motor and mounted on the processing table 23.
[0028] Furthermore, the processing table 23 is located at the front end of the molding groove 22, and the top surface of the processing table 23 is parallel to the top surface of the molding groove 22. The mold table 21 is a rectangular table with a groove at the front end. Both the molding groove 22 and the processing table 23 are fixed in the groove of the mold table 21.
[0029] Furthermore, the first trimming component 31 includes mounting platforms 311 symmetrically mounted on both sides of the top of the processing table 23. A first polishing roller 313 is rotatably connected to the mounting platform 311 through a shaft hole. A first motor 312 is mounted on the side of the mounting platform 311, and the output shaft of the first motor 312 is fixedly connected to the first polishing roller 313.
[0030] Specifically, after the battery cover enters the processing table 23, the first polishing rollers 313 on both sides rotate under the drive of the first motor 312. The first polishing rollers 313 polish the two sides of the battery cover, so that the burrs on the two sides of the battery cover are removed.
[0031] Furthermore, a processing groove 231 is provided on the top of the processing table 23 near the molding groove 22. A second polishing roller 322 is rotatably connected to the processing groove 231 through a shaft hole. The top of the second polishing roller 322 is slightly higher than the top surface of the processing table 23. A second motor 321 is installed on the side of the mold table 21. The output shaft of the second motor 321 is fixedly connected to the second polishing roller 322.
[0032] In this embodiment, the second polishing roller 322 is 5mm higher than the top surface of the processing table 23. This design allows the second polishing roller 322 to fully contact the bottom of the battery cover, and the front end of the battery cover can move forward past the second polishing roller 322. It should be noted that the rotation direction of the second polishing roller 322 is forward.
[0033] Specifically, when the battery cover enters the processing table 23, the second polishing roller 322 rotates under the drive of the second motor 321. The second polishing roller 322 processes the burrs on the bottom of the battery cover from the bottom, and as the battery cover is pushed by the pushing mechanism 4, the entire bottom of the battery cover can be polished to remove burrs. Example 2
[0034] Based on the above embodiment 1, this embodiment provides an ejection mechanism 5 and a pushing mechanism 4 for the process of driving the battery cover to eject and enter the processing table 23 after the battery cover is stamped.
[0035] The ejection mechanism 5 is located at the bottom of the molding groove 22 and is used to eject the stamped cover plate.
[0036] The pushing mechanism 4 is located at the rear end of the lower mold base 2 and is used to push the ejected cover plate into the molding groove 22.
[0037] The ejection mechanism 5 includes multiple ejection cylinders 51 installed in the mold table 21. The output rods of the ejection cylinders 51 are equipped with lifting platforms 52, and multiple ejector rods 53 that cooperate with the molding groove 22 are installed on the top of the lifting platforms 52.
[0038] It should be noted that the ejector pins 53 are arranged in a rectangular equidistant pattern, and the top of the molding groove 22 has multiple through-holes 221. The through-holes 221 are movably connected to the ejector pins 53 and are perpendicularly corresponding to them.
[0039] Furthermore, the pushing mechanism 4 includes a mounting frame 41 installed at the rear end of the mold table 21. A pushing cylinder 42 is installed on the top of the mounting frame 41. The output rod of the pushing cylinder 42 is equipped with a push table 43 located at the rear end of the molding groove 22. The push table 43 corresponds to the processing table 23.
[0040] In this embodiment, multiple ejector cylinders 51 are provided. All ejector cylinders 51 are servo cylinders and are uniformly controlled and started by a controller. Multiple ejector cylinders 51 can be stably driven simultaneously and maintain stability.
[0041] In this embodiment, after the battery cover is stamped, the ejector cylinder 51 in the ejector mechanism 5 drives the lifting platform 52 to move upward, which in turn drives the ejector rod 53 to push upward, so that the battery cover is ejected from the molding groove 22. At this time, the push cylinder 42 is started, and the push cylinder 42 pushes the ejected battery cover forward, so that the battery cover enters the processing table 23.
[0042] The working principle and usage process of this utility model: The upper mold base 1 and the lower mold are both installed on the punching machine. When preparing the battery cover, the raw material is introduced into the molding groove 22. Then, the punching machine drives the upper mold base 1 to move downward. The upper mold base 1 drives the upper die 11 to move downward to the molding groove 22, and the raw material in the molding groove 22 is stamped into shape to complete the stamping of the battery cover.
[0043] At this time, the ejection mechanism 5 is activated. The ejection cylinder 51 in the ejection mechanism 5 drives the lifting platform 52 to move upward, which in turn drives the ejector rod 53 to push upward, so that the battery cover is ejected from the molding groove 22. Then, the push cylinder 42 in the push mechanism 4 is activated. The push cylinder 42 pushes the ejected battery cover forward, so that the battery cover enters the processing table 23. During the process of the battery cover entering the processing table 23, the first polishing roller 313 polishes both sides of the battery cover, so that the burrs on both sides of the battery cover are removed. At the same time, the second polishing roller 322 at the bottom processes the burrs at the bottom of the battery cover. As the battery cover moves under the push of the push mechanism 4, the entire bottom of the battery cover is polished to remove burrs.
Claims
1. A battery cover stamping die with trimming function, comprising an upper die base (1) and a lower die base (2), characterized in that, It also includes a trimming mechanism (3), an ejection mechanism (5), and a pushing mechanism (4), wherein: The upper mold base (1) is equipped with an upper mold (11) at the bottom, and the lower mold base (2) is equipped with a mold platform (21) at the top. The mold platform (21) is equipped with a molding groove (22) and a processing table (23) corresponding to the upper mold (11). The trimming mechanism (3) includes a first trimming component (31) and a second trimming component (32), both of which include different polishing rollers that are driven by a motor and mounted on the processing table (23). The ejection mechanism (5) is located at the bottom of the molding groove (22) and is used to eject the stamped cover plate; The pushing mechanism (4) is located at the rear end of the lower mold base (2) and is used to push the ejected cover plate into the molding groove (22).
2. The battery cover stamping die with trimming function according to claim 1, characterized in that: The processing table (23) is located at the front end of the molding groove (22), and the top surface of the processing table (23) is parallel to the top surface of the molding groove (22). The mold table (21) is a rectangular table with a groove at the front end. The molding groove (22) and the processing table (23) are both fixed in the groove of the mold table (21).
3. A battery cover stamping die with trimming function according to claim 2, characterized in that: The first trimming component (31) includes mounting platforms (311) symmetrically mounted on both sides of the top of the processing table (23). A first polishing roller (313) is rotatably connected inside the mounting platform (311) through a shaft hole. A first motor (312) is mounted on the side of the mounting platform (311). The output shaft of the first motor (312) is fixedly connected to the first polishing roller (313).
4. A battery cover stamping die with trimming function according to claim 3, characterized in that: The processing table (23) has a processing groove (231) at the top near the molding groove (22). A second polishing roller (322) is rotatably connected in the processing groove (231) through a shaft hole. The top of the second polishing roller (322) is slightly higher than the top surface of the processing table (23). A second motor (321) is installed on the side of the mold table (21). The output shaft of the second motor (321) is fixedly connected to the second polishing roller (322).
5. A battery cover stamping die with trimming function according to claim 1, characterized in that: The ejection mechanism (5) includes multiple ejection cylinders (51) installed in the mold table (21). The output rod of the ejection cylinder (51) is equipped with a lifting platform (52). The top of the lifting platform (52) is equipped with multiple ejector rods (53) that cooperate with the molding groove (22).
6. A battery cover stamping die with trimming function according to claim 5, characterized in that: The push rods (53) are arranged in a rectangular equidistant pattern. The top of the molding groove (22) has multiple through holes (221). The top holes (221) are movably connected to the push rods (53) and are perpendicular to each other.
7. A battery cover stamping die with trimming function according to claim 1, characterized in that: The pushing mechanism (4) includes a mounting frame (41) installed at the rear end of the mold table (21), a pushing cylinder (42) is installed on the top of the mounting frame (41), and a pusher (43) is installed on the output rod of the pushing cylinder (42) at the rear end of the molding groove (22), the pusher (43) corresponding to the processing table (23).