A multi-slider linkage demolding lithium battery shell injection mold

Abstract

This utility model relates to the field of lithium battery technology and discloses a multi-slider linkage demolding lithium battery casing injection mold, including a worktable, a U-shaped frame mounted on the top of the worktable, an injection molding component mounted on the top of the U-shaped frame, and a switching component mounted on the top of the worktable. This utility model, by setting up a lifting component, moves the left movable box to the left. During this process, the two connecting gears on the left movable box rotate due to the meshing action of the fixed gear plate, thereby causing the intermediate shaft of helical gear B to rotate. This causes helical gear B to rotate, leading to the rotation of the threaded rod. Under the action of the threaded rod, the threaded cylinder moves the lifting plate up and down, thereby causing the vertical rod to move upward with the lifting plate, pushing the injection-molded product upward for easy removal. By switching the two movable boxes, automatic demolding of the product is achieved, improving the overall working efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and in particular to a lithium battery casing injection mold with multi-slider linkage demolding. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal require very high environmental standards. With the development of science and technology, lithium batteries have become the mainstream. During the manufacturing process, lithium batteries need to be fixed with an outer casing to ensure their safety before they can be shipped and used.

[0003] Chinese utility model patent CN215283124U discloses a lithium battery casing injection mold. By setting up a universal ball joint, which serves as a support for the left and right molds and contacts the inner top wall of the mounting bracket, the contact area is small and the frictional resistance is low. This reduces the transmission wear of the first and second ball screw pairs, extends the service life of the drive device, and ensures the fit between the left and right molds. Furthermore, by setting a convex edge that interlocks with a rectangular annular groove, the connection between the left and right molds is made tighter.

[0004] Regarding the aforementioned related technologies, the inventors believe that the following defects exist:

[0005] In actual use, after the product injection molding is completed, demolding is required. However, during demolding, the product gets stuck inside the mold slot, making it difficult to remove the product. Furthermore, the injection molding process needs to be stopped before the molded product can be removed, which affects the continuity of the device's operation and thus its overall efficiency. To address this, we propose a multi-slider linkage demolding lithium battery casing injection mold. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a lithium battery casing injection mold with multi-slider linkage demolding.

[0007] This utility model is achieved by the following technical solution: a lithium battery casing injection mold with multi-slider linkage demolding, including a worktable, a U-shaped frame installed on the top of the worktable, an injection molding component installed on the top of the U-shaped frame, and a switching component installed on the top of the worktable.

[0008] The switching assembly includes two movable boxes connected by a connecting block. A cylinder is fixedly connected to the right side of the right movable box, and limit cylinders are fixedly connected at equal intervals to the top of the movable box. A lifting assembly is installed inside the movable box.

[0009] The lifting assembly includes a lifting plate, with vertical rods fixedly connected at equal intervals to the top of the lifting plate, and a lifting disc fixedly connected to the top of the vertical rods. The lifting disc is slidably disposed inside the limiting cylinder. Two threaded cylinders are fixedly connected to the bottom of the lifting plate, and threaded rods are threadedly connected inside the threaded cylinders. The bottom end of the threaded rods is rotatably connected to the bottom of the inner wall of the moving box. A helical gear A is sleeved on the surface of the threaded rod, and a helical gear B is meshed on the surface of helical gear A. A connecting gear is fixedly connected to one end of the intermediate shaft of helical gear B, and a fixed toothed plate is meshed on the surface of the connecting gear. The bottom of the fixed toothed plate is fixedly connected to the top of the worktable.

[0010] The injection molding assembly includes an injection plate with a closed cover at equal intervals at the bottom. Two electric push rods are fixedly connected to the top of the injection plate, and the top of the electric push rods is fixedly connected to the top of the inner wall of the U-shaped frame. A hose is connected to the top of the injection plate, and a storage box is connected to the top of the hose.

[0011] As a further improvement to the above solution, fixed cylinders are fixedly connected to the four corners of the top of the mobile box, and limiting rods adapted to the fixed cylinders are fixedly connected to the four corners of the bottom of the injection molding plate, ensuring the stability of the injection molding operation.

[0012] As a further improvement to the above solution, the two threaded rods inside the movable box have opposite thread directions, ensuring the normal lifting and lowering movement of the threaded cylinder.

[0013] As a further improvement to the above solution, the bottom of the mobile box is fixedly connected with a locking strip, and the top of the workbench is provided with a locking groove that matches the locking strip, ensuring the normal movement of the mobile box.

[0014] As a further improvement to the above solution, two retaining rings are fitted onto the surface of the cylinder, and the surfaces of the retaining rings are fixedly connected to the top of the worktable.

[0015] As a further improvement to the above solution, a seated bearing is installed on the surface of the intermediate shaft of the helical gear B, and the bottom of the seated bearing is fixedly connected to the bottom of the inner wall of the movable box. A rotating bearing is installed on the surface of the intermediate shaft of the helical gear B, and the rotating bearing is installed on the inner wall of the movable box, thus ensuring the normal operation of the intermediate shaft of the helical gear B.

[0016] As a further improvement to the above solution, the bottom of the limiting cylinder is provided with a limiting port that matches the vertical rod, ensuring the normal movement of the vertical rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model, by setting up a lifting assembly, has threaded rods in the left and right moving boxes arranged symmetrically during use. After the left moving box completes the injection molding process, it moves to the left. During this process, the two connecting gears on the left moving box rotate due to the meshing action of the fixed gear plate, thereby causing the intermediate shaft of helical gear B to rotate. This causes helical gear B to rotate along with helical gear A, which in turn causes the threaded rod to rotate. Under the action of the threaded rod, the threaded cylinder moves up and down along with the lifting plate, thereby causing the vertical rod to move upward along with the lifting plate, pushing the injection-molded product upward for easy removal. By switching between the two moving boxes, automatic demolding of the product is achieved, improving the overall working efficiency of the device.

[0019] 2. This utility model, by setting a switching component, allows the device to operate smoothly during use. The cylinder is activated to move one of the movable boxes below the U-shaped frame, and then two electric push rods are activated to make the sealing cover abut against the surface of the limiting cylinder, thus sealing the limiting cylinder. Injection molding is then performed inside the limiting cylinder. After injection molding is complete, the cylinder is activated again to move the other movable box below the U-shaped frame for the next injection molding operation. During this process, the molded product is removed. The switching between the two movable boxes via the cylinder improves the continuity and efficiency of the device's operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the movable box, cylinder, and limiting cylinder of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of helical gear A, helical gear B and connecting gear of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the sealing cover, electric push rod, and hose of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Workbench; 2. U-shaped frame; 3. Moving box; 4. Cylinder; 5. Limiting cylinder; 6. Lifting plate; 7. Vertical rod; 8. Lifting disc; 9. Threaded cylinder; 10. Threaded rod; 11. Helical gear A; 12. Helical gear B; 13. Connecting gear; 14. Fixed gear plate; 15. Injection molded plate; 16. Sealing cover; 17. Electric push rod; 18. Hoses; 19. Storage box. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0027] Please combine Figure 1-4 This embodiment of a multi-slider linkage demolding lithium battery casing injection mold includes a worktable 1, a U-shaped frame 2 mounted on the top of the worktable 1, an injection molding component mounted on the top of the U-shaped frame 2, and a switching component mounted on the top of the worktable 1.

[0028] The switching component is used to change the position of the two movable boxes 3. The switching component includes two movable boxes 3. The bottom of the movable box 3 is fixedly connected with a locking strip. The top of the worktable 1 is provided with a slot that matches the locking strip, ensuring the normal movement of the movable box 3. The two movable boxes 3 are connected by a connecting block. The right side of the right movable box 3 is fixedly connected with a cylinder 4. Two fixing rings are sleeved on the surface of the cylinder 4. The surface of the fixing rings is fixedly connected to the top of the worktable 1. Limiting cylinders 5 are fixedly connected at equal intervals on the top of the movable box 3. A lifting component is installed inside the movable box 3.

[0029] The lifting assembly is used to eject the injection-molded product. The lifting assembly includes a lifting plate 6, with vertical rods 7 fixedly connected at equal intervals to the top of the lifting plate 6. A limiting sleeve 5 has a limiting opening at its bottom that matches the vertical rods 7, ensuring normal movement of the vertical rods 7. A lifting disc 8 is fixedly connected to the top of the vertical rods 7 and slidably disposed inside the limiting sleeve 5. Two threaded cylinders 9 are fixedly connected to the bottom of the lifting plate 6, with threaded rods 10 threadedly connected inside the threaded cylinders 9. The threads of the two threaded rods 10 inside the moving box 3 are opposite in direction, ensuring normal lifting and lowering movement of the threaded cylinders 9. The threaded rods 10 in the left moving box 3 and the right moving box 3 are symmetrically arranged, allowing the lifting discs 8 in both moving boxes 3 to move symmetrically. The moving directions are set in opposite directions. The bottom end of the threaded rod 10 is rotatably connected to the bottom of the inner wall of the moving box 3. A helical gear A11 is sleeved on the surface of the threaded rod 10. A helical gear B12 is meshed on the surface of the helical gear A11. A seated bearing is installed on the surface of the intermediate shaft of the helical gear B12. The bottom of the seated bearing is fixedly connected to the bottom of the inner wall of the moving box 3. A rotating bearing is installed on the surface of the intermediate shaft of the helical gear B12. The rotating bearing is installed on the inner wall of the moving box 3 to ensure the normal operation of the intermediate shaft of the helical gear B12. A connecting gear 13 is fixedly connected to one end of the intermediate shaft of the helical gear B12. A fixed toothed plate 14 is meshed on the surface of the connecting gear 13. The bottom of the fixed toothed plate 14 is fixedly connected to the top of the worktable 1.

[0030] The injection molding assembly is used for injection molding. The injection molding assembly includes an injection molding plate 15. Fixed cylinders are fixedly connected to the four corners of the top of the moving box 3. Limiting rods that are compatible with the fixed cylinders are fixedly connected to the four corners of the bottom of the injection molding plate 15 to ensure the stability of the injection molding operation. The bottom of the injection molding plate 15 is connected to a closed cover 16 at equal intervals. Two electric push rods 17 are fixedly connected to the top of the injection molding plate 15. The top of the electric push rods 17 is fixedly connected to the top of the inner wall of the U-shaped frame 2. The top of the injection molding plate 15 is connected to a hose 18. The top of the hose 18 is connected to a storage box 19.

[0031] The implementation principle of a multi-slider linkage demolding lithium battery casing injection mold in this application embodiment is as follows: During the use of the device, the cylinder 4 is activated to move one of the movable boxes 3 to the bottom of the U-shaped frame 2, and then the two electric push rods 17 are activated so that the sealing cover 16 abuts against the surface of the limiting cylinder 5, thereby sealing the limiting cylinder 5. Then, the inside of the limiting cylinder 5 is injected. After the injection is completed, the cylinder 4 is activated to move the other movable box 3 to the bottom of the U-shaped frame 2 for the next injection. During this process, the injection-molded product is removed. The switching between the two movable boxes 3 is achieved by the cylinder 4, which improves the continuity of the device's operation and improves the device's working efficiency.

[0032] During use, the threaded rod 10 in the left movable box 3 and the threaded rod 10 in the right movable box 3 are symmetrically arranged. After the left movable box 3 completes the injection molding, it moves to the left. During this process, the two connecting gears 13 on the left movable box 3 are rotated by the meshing action of the fixed gear plate 14, which causes the intermediate shaft of the helical gear B12 to rotate, causing the helical gear B12 to rotate with the helical gear A11, which in turn causes the threaded rod 10 to rotate. The threaded cylinder 9 moves up and down with the lifting plate 6 under the action of the threaded rod 10, which causes the vertical rod 7 to move upward with the lifting plate 8, pushing the injection-molded product upward for easy removal. By switching the two movable boxes 3, the automatic demolding of the product is achieved, which improves the overall working efficiency of the device.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A multi-slider linkage demolding injection mold for lithium battery casing, characterized in that, Includes a workbench (1), a U-shaped frame (2) is installed on the top of the workbench (1), an injection molding assembly is installed on the top of the U-shaped frame (2), and a switching assembly is installed on the top of the workbench (1); The switching assembly includes two movable boxes (3), which are connected by a connecting block. A cylinder (4) is fixedly connected to the right side of the right movable box (3), and limit cylinders (5) are fixedly connected at equal intervals to the top of the movable box (3). A lifting assembly is installed inside the movable box (3). The lifting assembly includes a lifting plate (6), with vertical rods (7) fixedly connected at equal intervals to the top of the lifting plate (6), and a lifting disc (8) fixedly connected to the top of the vertical rods (7). The lifting disc (8) is slidably disposed inside the limiting cylinder (5). Two threaded cylinders (9) are fixedly connected to the bottom of the lifting plate (6). A threaded rod (10) is threadedly connected inside the threaded cylinder (9). The bottom end of the threaded rod (10) is rotatably connected to the bottom of the inner wall of the moving box (3). A helical gear A (11) is sleeved on the surface of the threaded rod (10). A helical gear B (12) is meshed on the surface of the helical gear A (11). A connecting gear (13) is fixedly connected to one end of the intermediate shaft of the helical gear B (12). A fixed toothed plate (14) is meshed on the surface of the connecting gear (13). The bottom of the fixed toothed plate (14) is fixedly connected to the top of the workbench (1). The injection molding assembly includes an injection plate (15), with a closed cover (16) at equal intervals at the bottom of the injection plate (15), and two electric push rods (17) fixedly connected to the top of the injection plate (15). The top of the electric push rods (17) is fixedly connected to the top of the inner wall of the U-shaped frame (2). A hose (18) is connected to the top of the injection plate (15), and a storage box (19) is connected to the top of the hose (18).

2. The lithium battery casing injection mold with multi-slider linkage demolding as described in claim 1, characterized in that, The four corners of the top of the mobile box (3) are fixedly connected with fixed cylinders, and the four corners of the bottom of the injection molded plate (15) are fixedly connected with limiting rods that are compatible with the fixed cylinders.

3. The lithium battery casing injection mold with multi-slider linkage demolding as described in claim 1, characterized in that, The threads of the two threaded rods (10) inside the movable box (3) are opposite.

4. The lithium battery casing injection mold with multi-slider linkage demolding as described in claim 1, characterized in that, The bottom of the mobile box (3) is fixedly connected with a card strip, and the top of the workbench (1) is provided with a card slot that matches the card strip.

5. A lithium battery casing injection mold with multi-slider linkage demolding as described in claim 1, characterized in that, The surface of the cylinder (4) is fitted with two retaining rings.

6. The lithium battery casing injection mold with multi-slider linkage demolding as described in claim 1, characterized in that, The surface of the intermediate shaft of the helical gear B (12) is equipped with a seated bearing, the bottom of which is fixedly connected to the bottom of the inner wall of the movable box (3). The surface of the intermediate shaft of the helical gear B (12) is equipped with a rotating bearing, which is installed on the inner wall of the movable box (3).

7. A lithium battery casing injection mold with multi-slider linkage demolding as described in claim 1, characterized in that, The bottom of the limiting cylinder (5) is provided with a limiting opening that is compatible with the vertical rod (7).

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