The lower mold of a battery box injection mold
The lower mold structure using lifting and jacking cylinders automates the positioning, injection molding, and collection of battery boxes, solving the problems of high intensity and low efficiency caused by manual operation in existing technologies, and achieving efficient battery box collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEIJIANG HONGTU CHAOYUE TECH CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-03
Smart Images

Figure CN224446642U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lower mold structure, and in particular to a lower mold for a battery box injection mold. Background Technology
[0002] The structure of a certain model of battery box is as follows: Figures 1-2 As shown, the battery box includes a flat plate 1 and a rectangular shell 2 fixed to the top surface of the flat plate 1. A ring-shaped groove 3 is formed on the top surface of the rectangular shell 2 along its circumference. Manufacturing requires that a sealing ring be injection molded into the ring-shaped groove 3 of each battery box.
[0003] To injection mold a sealing ring onto the battery box, the following method is required: Figures 3-4 The lower mold shown is used to install the battery box. The lower mold includes a first base 4 and a first receiving plate 5 fixed in the first base 4. The first receiving plate 5 has a plurality of receiving slots 6, which are matched with the outer contour of the flat plate 1 of the battery box.
[0004] The method by which the worker uses the lower mold in conjunction with the injection molding machine to injection mold a sealing ring into the annular recess 3 of the battery box is as follows:
[0005] S1. The worker places a battery box into each of the receiving slots 6 of the first receiving plate 5, such as... Figure 5 As shown, the outer contour of the plate 1 of the battery box matches the receiving groove 6, thereby realizing the positioning of the plate 1 and thus the positioning of the battery box.
[0006] S2. After positioning, the worker injects liquid silicone into the annular groove 3 of the battery box using an injection molding machine. After the liquid silicone cools down, a sealing ring can be injection molded into the annular groove 3 of the battery box.
[0007] S3. Collect the battery box with the injection-molded sealing ring from the first receiving plate 5. The specific operation steps are as follows:
[0008] S31. The worker lifts a battery box from the corresponding receiving slot 6 by hand. After the battery box is taken out, the worker puts the battery box into the collection basket, thus completing the collection of one battery box.
[0009] S32. The worker repeats step S31 multiple times to collect all the battery boxes in each receiving slot 6 into the receiving basket.
[0010] S4. Workers repeat steps S1 to S3 multiple times to inject a sealing ring onto all battery boxes in the workshop, and collect all battery boxes with the sealing rings into the receiving basket.
[0011] However, although the lower mold can work with the injection molding machine to injection mold a sealing ring in the annular groove 3 of the battery box, it still has the following technical defects:
[0012] In step S3, after a sealing ring is injection molded on each of the multiple battery boxes, the workers need to manually remove the battery boxes from the receiving slot 6 and then put them into the collection basket for collection. This not only increases the workload of the workers, but also makes it take a long time to collect all the battery boxes in the first receiving plate into the collection basket, thereby reducing the collection efficiency of the battery boxes.
[0013] Therefore, there is an urgent need for a lower mold that can greatly reduce the workload of workers and greatly improve the efficiency of battery box collection. Utility Model Content
[0014] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a lower mold for a battery box injection mold that greatly reduces the labor intensity of workers and greatly improves the battery box collection efficiency.
[0015] The purpose of this utility model is achieved through the following technical solution: a lower mold for a battery box injection mold, which includes a pad, a column fixed on the top surface of the pad and a lifting cylinder. The top of the column is hinged to a horizontally set movable plate via a pin shaft A. A connecting rod located on the right side of the column is hinged to the bottom surface of the movable plate. The other end of the connecting rod is hinged to the working end of the piston rod of the lifting cylinder.
[0016] Two lifting cylinders are fixedly mounted on the bottom surface of the movable plate. The piston rods of the two lifting cylinders extend upward through the movable plate. A second base is fixed between the piston rods of the two lifting cylinders. A second receiving plate is fixed inside the second base. Multiple receiving slots are opened between the second base and the second receiving plate. The upper port of the receiving slot extends through the top surface of the second receiving plate, and the lower port of the receiving slot extends through the bottom surface of the second base.
[0017] Multiple fixing rods are fixed on the top surface of the movable plate. Each fixing rod corresponds to a receiving groove. The upper end of the fixing rod extends into the receiving groove of the second receiving plate, and a support plate is fixed on the extended end.
[0018] A support plate is fixed on the bottom surface of the movable plate, and the support plate is hinged to the connecting rod via pin B.
[0019] The receiving slot matches the outer contour of the battery box's flat plate.
[0020] The support plate is circular and coaxial with the fixing rod.
[0021] A slot is provided on the top surface of the second base, and the second receiving plate is embedded in the slot.
[0022] The lower mold also includes a controller, which is electrically connected to the lifting cylinder and two lifting cylinders via signal lines.
[0023] This invention has the following advantages: it greatly reduces the workload of workers and greatly improves the efficiency of battery box collection. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the battery box structure;
[0025] Figure 2 for Figure 1 Main section diagram;
[0026] Figure 3 This is a schematic diagram of the lower mold structure in the prior art;
[0027] Figure 4 for Figure 3 A schematic diagram of the structure of the first receiving plate in the process;
[0028] Figure 5 A schematic diagram showing how workers place a battery box into each of the receiving slots on the first receiving plate;
[0029] Figure 6 This is a schematic diagram of the structure of this utility model;
[0030] Figure 7 for Figure 6 A schematic diagram showing the connection between the second receiving plate and the second base;
[0031] Figure 8 This is a schematic diagram showing the connection between the fixed rod and the support plate;
[0032] Figure 9 A schematic diagram showing that a battery box is placed in each of the receiving slots of the second receiving plate;
[0033] Figure 10 This is a schematic diagram showing that the top surface of the second receiving plate is flush with the bottom surface of the flat plate of the battery box;
[0034] Figure 11 This is a diagram showing the placement of the receiving basket on the left side of the second base.
[0035] Figure 12 This is a schematic diagram showing that the second base, the second receiving plate, the fixing rod, and the support plate all rotate synchronously.
[0036] In the picture:
[0037] 1-Flat plate, 2-Rectangular shell, 3-Annular sink, 4-First base, 5-First receiving plate, 6-Receiving tank;
[0038] 7-Plate, 8-Column, 9-Lifting cylinder, 10-Pin A, 11-Modible plate, 12-Connecting rod, 13-Lifting cylinder, 14-Second base, 15-Second receiving plate, 16-Fixing rod, 17-Support plate, 18-Support plate, 19-Pin B, 20-Receiving basket. Detailed Implementation
[0039] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description:
[0040] like Figures 6-8 As shown, a lower mold for a battery box injection mold includes a pad 7, a column 8 fixed on the top surface of the pad 7, and a lifting cylinder 9. The top of the column 8 is hinged to a horizontally arranged movable plate 11 via a pin shaft A10. A connecting rod 12 located on the right side of the column 8 is hinged to the bottom surface of the movable plate 11. The other end of the connecting rod 12 is hinged to the working end of the piston rod of the lifting cylinder 9. A support plate 18 is fixed on the bottom surface of the movable plate 11, and the support plate 18 is hinged to the connecting rod 12 via a pin shaft B19.
[0041] Two lifting cylinders 13 are fixedly mounted on the bottom surface of the movable plate 11. The piston rods of the two lifting cylinders 13 extend upward through the movable plate 11. A second base 14 is fixedly mounted between the piston rods of the two lifting cylinders 13. A second receiving plate 15 is fixedly mounted inside the second base 14. A plurality of receiving grooves 6 are opened between the second base 14 and the second receiving plate 15. The upper port of the receiving groove 6 extends through the top surface of the second receiving plate 15, and the lower port of the receiving groove 6 extends through the bottom surface of the second base 14. The receiving grooves 6 are matched with the outer contour of the plate 1 of the battery box.
[0042] Multiple fixing rods 16 are fixed on the top surface of the movable plate 11. Each fixing rod 16 corresponds to a corresponding receiving groove 6. The upper end of the fixing rod 16 extends into the receiving groove 6 of the second receiving plate 15, and a support plate 17 is fixed on the extended end. The support plate 17 is circular and coaxial with the fixing rod 16.
[0043] The second base 14 has a slot on its top surface, and the second receiving plate 15 is embedded in the slot. The lower mold also includes a controller, which is electrically connected to the lifting cylinder 9 and the two lifting cylinders 13 via signal lines. The operator can control the piston rod of the lifting cylinder 13 to extend or retract upwards through the controller, and at the same time, can also control the piston rod of the lifting cylinder 9 to extend or retract upwards, thus facilitating the operator's operation.
[0044] The working process of this utility model is as follows:
[0045] S1. The worker places a [material] into each of the receiving slots 6 of the second receiving plate 15. Figures 1-2 The battery box shown is as follows: Figure 9 As shown, and ensure that the bottom surface of the plate 1 of the battery box is in contact with the support plate 17, the plate 1 is positioned by matching the outer contour of the plate 1 of the battery box with the receiving groove 6, thereby achieving the positioning of the plate 1 and thus the positioning of the battery box.
[0046] S2. After positioning, the worker injects liquid silicone into the annular groove 3 of the battery box using an injection molding machine. After the liquid silicone cools down, a sealing ring can be injection molded into the annular groove 3 of the battery box.
[0047] S3. Collect the battery box with the injection-molded sealing ring from the second receiving plate 15. The specific operation steps are as follows:
[0048] S31. The worker controls the piston rods of both lifting cylinders 13 to retract downwards. The piston rods drive the second base 14 to move downwards, and the second base 14 drives the second receiving plate 15 to move downwards relative to the stationary fixed rod 16. When the piston rods of the lifting cylinders 13 are fully retracted, the top surface of the second receiving plate 15 is just flush with the bottom surface of the battery box's flat plate 1. Figure 10 As shown;
[0049] S32. The worker holds the receiving basket 20 by hand and places it on the left side of the second base 14, as follows. Figure 11 As shown;
[0050] S33, the piston rod of the lifting cylinder 9 extends upward, driving the connecting rod 12 to move upward. The connecting rod 12 lifts the movable plate 11, which rotates counterclockwise around the pin A10. The movable plate 11 drives the lifting cylinder 13, the second base 14, the second receiving plate 15, the fixed rod 16, and the support plate 17 to rotate synchronously. The support plate 17 drives the battery box on it to rotate synchronously. Figure 12 As shown, under its own weight, the battery box slides down the top surface of the second base 14 into the receiving basket 20, thereby collecting all the battery boxes in the second receiving plate 15 into the receiving basket 20. The direction of the battery box's slide is as follows: Figure 12 As indicated by the middle arrow;
[0051] S4. Workers repeat steps S1 to S3 multiple times to inject a sealing ring onto all battery boxes in the workshop, and collect all battery boxes with the sealing rings into the receiving basket 20.
[0052] As can be seen from step S3, the worker only needs to control the piston rods of the two lifting cylinders 13 to retract downwards so that the battery boxes in the receiving slot 6 are exposed to the outside. Then, the worker controls the piston rod of the lifting cylinder 9 to extend upwards so that the second base 14, the second receiving plate 15 and the battery boxes are all in an inclined state. This allows all the exposed battery boxes to slide into the receiving basket 20, thus completing the collection of multiple battery boxes at once.
[0053] Therefore, it can be seen that this lower mold is compared to... Figures 3-5 The lower mold shown eliminates the need for workers to manually remove the battery boxes from the receiving slot one by one, or to manually place the removed battery boxes into the receiving basket. Instead, it automatically collects all exposed battery boxes into the receiving basket 20 in one go. This not only greatly reduces the workload of workers, but also shortens the battery box collection time, thereby greatly improving the battery box collection efficiency.
[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A lower mold of a battery case injection mold, characterized by: It includes a pad (7), a column (8) fixed on the top surface of the pad (7) and a lifting cylinder (9). The top of the column (8) is hinged to a horizontally set movable plate (11) via a pin shaft A (10). A connecting rod (12) located on the right side of the column (8) is hinged to the bottom surface of the movable plate (11). The other end of the connecting rod (12) is hinged to the working end of the piston rod of the lifting cylinder (9). Two lifting cylinders (13) are fixed on the bottom surface of the movable plate (11). The piston rods of the two lifting cylinders (13) pass through the movable plate (11) upward. A second base (14) is fixed between the piston rods of the two lifting cylinders (13). A second receiving plate (15) is fixed inside the second base (14). A plurality of receiving grooves (6) are opened between the second base (14) and the second receiving plate (15). The upper port of the receiving groove (6) passes through the top surface of the second receiving plate (15), and the lower port of the receiving groove (6) passes through the bottom surface of the second base (14). Multiple fixing rods (16) are fixed on the top surface of the movable plate (11). Each fixing rod (16) corresponds to a corresponding receiving groove (6). The upper end of the fixing rod (16) extends into the receiving groove (6) of the second receiving plate (15), and a support plate (17) is fixed on the extended end.
2. The lower mold of the battery case injection mold according to claim 1, characterized by: A support plate (18) is fixed on the bottom surface of the movable plate (11), and the support plate (18) is hinged to the connecting rod (12) via a pin shaft B (19).
3. The lower mold of the battery case injection mold according to claim 1, characterized by: The receiving groove (6) matches the outer contour of the flat plate (1) of the battery box.
4. The lower mold of the battery case injection mold according to claim 1, characterized by: The support plate (17) is circular and coaxial with the fixing rod (16).
5. The lower mold of the battery case injection mold according to claim 1, characterized by: A slot is provided on the top surface of the second base (14), and the second receiving plate (15) is embedded in the slot.
6. The lower mold of the battery case injection mold according to claim 1, characterized by: The lower mold also includes a controller, which is electrically connected to the lifting cylinder (9) and the two lifting cylinders (13) via signal lines.