Battery shell injection mold convenient to unload

Abstract

The utility model relates to the technical field of injection molds, in particular to a battery shell injection mold convenient to unload, which comprises a female mold, a first mounting seat is mounted at the bottom of the female mold, two sides of the bottom of the first mounting seat are fixed on a base through supports, and a top plate is fixedly mounted on the top edge of the base through a plurality of support rods. A second mounting seat is arranged at the bottom of the top plate, a male die matched with the female die is mounted at the bottom of the second mounting seat and located above the female die, the two sides of the top of the second mounting seat are fixed to a fixing plate through second telescopic mechanisms, a connecting block is mounted at the top of the fixing plate, and a through groove is formed in the top of the top plate. The male die can be moved to the position above the collecting box through the driving motor and the lead screw, external air is conveyed into the air collecting cavity through the air conveying pump via the air guide pipe, the sealing plate is pushed, the push head extends out of the through hole to push the battery shell attached to the male die into the collecting box for collection, and discharging is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for a battery case that is convenient for unloading materials. Background Art

[0002] The battery case is mainly used to protect the internal components of the battery and separate the internal components of the battery from the external environment.

[0003] When processing the battery case, it is generally injection-molded through an injection mechanism. The molten material is injected into the injection mold for shaping. When the material cools, the mold is opened to take out the shaped battery case. However, since the battery case shrinks during the cooling process, the battery case will adhere to the mold. When unloading the material, the staff needs to remove the battery case adhered to the mold and put it into the collection mechanism. The unloading is troublesome, and during the unloading process, it is easy to cause the mold to be misaligned, resulting in easy collision of the mold during mold closing in subsequent processing, and the use effect is poor. For this reason, we propose an injection mold for a battery case that is convenient for unloading materials. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned disadvantages existing in the prior art, and to propose an injection mold for a battery case that is convenient for unloading materials.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: Design an injection mold for a battery case that is convenient for unloading materials, including a female mold. A first mounting seat is installed at the bottom of the female mold. Both sides of the bottom of the first mounting seat are fixed on the base through brackets. And the top edge of the base is fixedly installed with a top plate through a plurality of support rods. A second mounting seat is provided at the bottom of the top plate. A male mold matching the female mold is installed at the bottom of the second mounting seat. The male mold is located above the female mold;

[0006] Both sides of the top of the second mounting seat are fixed on the fixed plate through second telescopic mechanisms. A connecting block is installed at the top of the fixed plate. A through groove is opened at the top of the top plate. The top of the connecting block penetrates through the through groove. And a lead screw is rotatably connected inside the through groove. The lead screw penetrates through the connecting block and is in threaded cooperation with the connecting block. And one end of the lead screw is connected to a drive motor through a gear box. The drive motor is fixed on the top of the top plate;

[0007] An air delivery pump is installed at the top of the top plate. The air outlet end of the air delivery pump is connected to an air guide pipe. One end of the air guide pipe penetrates through the fixed plate and the second mounting seat and is connected to the top of the male mold. An air collecting cavity is opened inside the male mold. The end of the air guide pipe is connected to the inside of the air collecting cavity;

[0008] A sealing plate is arranged inside the air collecting cavity. The edge of the sealing plate is in sealing cooperation with the inner wall of the air collecting cavity. A plurality of connecting rods are installed at the bottom of the sealing plate, and pushing heads are installed at the bottom of each connecting rod. A plurality of through holes are opened at the bottom of the punch, and each pushing head extends into the corresponding through hole and is in sealing cooperation with the through hole;

[0009] Bar-shaped moving plates are arranged on both sides of the top of the first mounting seat. The bottom of each bar-shaped moving plate is connected to the first mounting seat through a first telescopic mechanism. Positioning rods are vertically installed on both sides of the top of each bar-shaped moving plate. A plurality of positioning holes are opened at the top edge of the second mounting seat. When the bar-shaped moving plate is at the uppermost end, the top of the positioning rod penetrates through the positioning hole;

[0010] Positioning plates are installed at one end of the bottom of the top plate. A pressure sensor is installed on one side of the positioning plate close to the second mounting seat. When the side of the second mounting seat abuts against the pressure sensor, the punch is located above the die and aligned with the die.

[0011] Preferably, a bar-shaped limiting plate is installed at the top of the connecting block. Both ends of the bar-shaped limiting plate extend to the top of the top plate. Both ends of the bottom of the bar-shaped limiting plate are slidably connected to the guide rails fixed on the top of the top plate through sliders.

[0012] Preferably, support blocks are symmetrically installed at the top of the sealing plate. When the top of the support block contacts the top of the air collecting cavity, the bottom end of the pushing head is flush with the bottom end of the through hole.

[0013] Preferably, a spring is sleeved on the side of each connecting rod. When the top of the support block contacts the top of the air collecting cavity, the spring is in a compressed state. The top end of each spring is fixed to the bottom of the sealing plate, and the bottom end of each spring is fixed to the bottom of the air collecting cavity.

[0014] Preferably, a collection box is installed on one side of the top of the base. The collection box is located below the through groove.

[0015] Preferably, an isolation sleeve is sleeved on the side of the lead screw. The two ends of the isolation sleeve are respectively fixed on the connecting block and the side of the through groove.

[0016] Preferably, a control cabinet is installed on the side of one of the support rods. The controller inside the control cabinet is connected to the pressure sensor, the first telescopic mechanism, the second telescopic mechanism, the driving motor, and the air delivery pump through wires.

[0017] Preferably, guide rods are installed on both sides of the bottom of the bar-shaped moving plate. The bottom of the guide rods penetrates through the first mounting seat.

[0018] The beneficial effects of the design scheme proposed by the present utility model in the application process are as follows:

[0019] 1. The punch can be moved above the collection box through the driving motor and the lead screw. Then, external air is transported through the air duct to the air collection cavity by the air delivery pump, which pushes the sealing plate, causing the push head to extend out of the through hole and push the battery housing adhered to the punch into the collection box for collection, facilitating unloading.

[0020] 2. The positioning between the punch and the die can be achieved through the cooperation of the positioning rod and the positioning hole, avoiding the position misalignment between the punch and the die, which may cause die collision and improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of the present utility model;

[0022] Figure 2 is a schematic structural view of the punch and the die of the present utility model;

[0023] Figure 3 is a side sectional view of the punch structure of the present utility model;

[0024] Figure 4 is a partial side sectional view of the structure of the present utility model.

[0025] In the figure: 1. Base; 2. Guide rod; 3. First mounting seat; 4. First telescopic mechanism; 5. Strip-shaped moving plate; 6. Control cabinet; 7. Support rod; 8. Positioning rod; 9. Second mounting seat; 10. Top plate; 11. Driving motor; 12. Gear box; 13. Strip-shaped limiting plate; 14. Through groove; 15. Isolation sleeve; 16. Air duct; 17. Connecting block; 18. Air delivery pump; 19. Die; 20. Punch; 21. Positioning hole; 22. Fixed plate; 23. Lead screw; 24. Second telescopic mechanism; 25. Sealing plate; 26. Support block; 27. Link rod; 28. Push head; 29. Through hole; 30. Spring; 31. Air collection cavity; 32. Positioning plate; 33. Collection box; 34. Pressure sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] Refer to Figures 1-4, An injection mold for a battery case that facilitates unloading, including a female mold 19. A first mounting base 3 is installed at the bottom of the female mold 19. Both sides of the bottom of the first mounting base 3 are fixed to the base 1 through brackets. And the top edge of the base 1 is fixedly installed with a top plate 10 through a number of support rods 7. A second mounting base 9 is provided at the bottom of the top plate 10. A male mold 20 that matches the female mold 19 is installed at the bottom of the second mounting base 9. The male mold 20 is located above the female mold 19. During actual use, by moving the male mold 20 into the female mold 19, a cavity will be formed between the two. Then, the molten material can be injected into this cavity by an injection molding machine to carry out plastic processing.

[0028] As Figure 1 shown, a control cabinet 6 is installed on the side of one of the support rods 7. A controller is provided inside the control cabinet 6. The controller is one of a control main board or a PLC logic controller.

[0029] As Figure 2 shown, both sides of the top of the second mounting base 9 are fixed to the fixed plate 22 through second telescopic mechanisms 24. The second telescopic mechanisms 24 are connected to the controller through wires. The lifting of the male mold 20 can be controlled by the telescoping of the second telescopic mechanisms 24, which is convenient to use.

[0030] As Figure 1 and Figure 2 shown, a connecting block 17 is installed on the top of the fixed plate 22. A through groove 14 is opened on the top of the top plate 10. The top of the connecting block 17 penetrates through the through groove 14. And a lead screw 23 is rotatably connected inside the through groove 14. The lead screw 23 penetrates through the connecting block 17 and is threadedly engaged with the connecting block 17. And one end of the lead screw 23 is connected to a drive motor 11 through a gear box 12. The drive motor 11 is fixed on the top of the top plate 10. The drive motor 11 is connected to the controller through a wire. During actual use, when the tool is formed and the second telescopic mechanism 24 moves the male mold 20 to the topmost position, the drive motor 11 can move the male mold 20 away from above the female mold 19 through the lead screw 23.

[0031] It should be noted that a strip-shaped limiting plate 13 is installed on the top of the connecting block 17. Both ends of the strip-shaped limiting plate 13 extend to the top of the top plate 10. And both bottom ends of the strip-shaped limiting plate 13 are slidably connected to the guide rails fixed on the top of the top plate 10 through sliders. During actual use, through the cooperation of the guide rails and the strip-shaped limiting plate 13, the connecting block 17 can be limited, so that the male mold 20 remains stable during horizontal movement.

[0032] As Figure 2 and Figure 3As shown in the figure, an air delivery pump 18 is installed on the top of the top plate 10. The air delivery pump 18 is connected to the controller through a wire. The air outlet end of the air delivery pump 18 is connected to an air duct 16. One end of the air duct 16 penetrates through the fixing plate 22 and the second mounting seat 9 and is connected to the top of the punch 20. A gas collecting cavity 31 is formed inside the punch 20. The end of the air duct 16 is communicated with the inside of the gas collecting cavity 31. During actual use, the air delivery pump 18 can deliver external air to the gas collecting cavity 31 through the air duct 16, increasing the pressure inside the gas collecting cavity 31.

[0033] As Figure 3 shown in the figure, a sealing plate 25 is arranged inside the gas collecting cavity 31. The edge of the sealing plate 25 is in sealing cooperation with the inner wall of the gas collecting cavity 31. A plurality of connecting rods 27 are installed at the bottom of the sealing plate 25. Push heads 28 are installed at the bottoms of the connecting rods 27. A plurality of through holes 29 are formed at the bottom of the punch 20. Each push head 28 extends into the corresponding through hole 29 and is in sealing cooperation with the through hole 29. During actual use, the air duct 16 will deliver air to the top of the gas collecting cavity 31. The increased pressure at the top of the gas collecting cavity 31 will push the sealing plate 25, and then the bottom end of the push head 28 will extend out of the through hole 29, pushing off the battery case adhered to the punch 20.

[0034] It should be noted that support blocks 26 are symmetrically installed at the top of the sealing plate 25. When the top of the support block 26 contacts the top of the gas collecting cavity 31, the bottom end of the push head 28 is flush with the bottom end of the through hole 29. In this way, during the injection molding process, the push head 28 and the through hole 29 will not affect the quality of the workpiece.

[0035] It should be noted that as Figure 1 shown in the figure, a collection box 33 is installed on one side of the top of the base 1. The collection box 33 is located below the through groove 14. Under the action of the lead screw 23, the punch 20 can be moved above the collection box 33, and under the action of the air delivery pump 18, the push head 28 can push the formed battery case into the collection box 33, facilitating unloading.

[0036] As Figure 2 shown in the figure, strip-shaped moving plates 5 are arranged on both sides of the top of the first mounting seat 3. The bottom of each strip-shaped moving plate 5 is connected to the first mounting seat 3 through a first telescopic mechanism 4. Positioning rods 8 are vertically installed on both sides of the top of the strip-shaped moving plate 5. A plurality of positioning holes 21 are formed at the top edge of the second mounting seat 9. When the strip-shaped moving plate 5 is at the uppermost end, the top of the positioning rod 8 penetrates through the positioning hole 21. The first telescopic mechanism 4 is connected to the controller through a wire. Before injection molding, when the punch 20 moves above the die 19, the controller controls the first telescopic mechanism 4 to extend, causing the positioning rod 8 to move upward. The top of the positioning rod 8 extends into the positioning hole 21, so as to position the punch 20 and prevent the 0 position of the smear from shifting and causing die collision during injection molding.

[0037] It should be noted that asFigure 1 and Figure 2 As shown in Figure 2 , guide rods 2 are installed on both sides of the bottom of the strip-shaped moving plate 5. The bottom of the guide rods 2 penetrates through the first mounting seat 3. The strip-shaped moving plate 5 can be limited by the guide rods 2, so that the strip-shaped moving plate 5 remains stable.

[0038] As Figure 4 shown, positioning plates 32 are installed at one end of the bottom of the top plate 10, and a pressure sensor 34 is installed on the side of the positioning plate 32 close to the second mounting seat 9. When the side of the second mounting seat 9 abuts against the pressure sensor 34, the punch 20 is located above the die 19 and aligned with the die 19. The pressure sensor 34 is connected to the controller through a wire. During actual use, when the pressure sensor 34 contacts the side of the second mounting seat 9, the pressure sensor 34 can transmit the detected signal to the controller, and the controller turns off the drive motor 11, the lead screw 23 stops rotating, and the punch 20 stops moving horizontally.

[0039] It should be noted that both the first telescopic mechanism 4 and the second telescopic mechanism 24 are one of an electric push rod or a hydraulic rod.

[0040] Specifically, when the utility model is in use, the staff controls the driving motor 11 to reverse through the controller. Under the action of the lead screw 23, the connecting block 17 is controlled to move horizontally, so that one side of the second mounting seat 9 contacts the pressure sensor 34. The pressure sensor 34 detects the pressure signal and transmits the signal to the controller. The controller turns off the driving motor 11 and controls the first telescopic mechanism 4 to extend. The first telescopic mechanism 4 pushes the strip-shaped moving plate 5 upward, so that the top of the positioning rod 8 penetrates through the positioning hole 21. Then, the second telescopic mechanism 24 is controlled to extend. The second telescopic mechanism 24 pushes the second mounting seat 9 to move downward along the positioning rod 8, so that the punch 20 moves into the die 19. Then, the injection molding machine injects molten material into the cavity formed between the die 19 and the punch 20. When the molten material cools and solidifies, the controller controls the second telescopic mechanism 24 to contract, and moves the punch 20 out of the die 19. The material cools and shrinks and will move out of the die 19 together with the punch 20. Then, the first telescopic mechanism 4 is controlled to contract, and the top of the positioning rod 8 is moved out of the positioning hole 21. Then, the controller controls the driving motor 11 to rotate forward. The driving motor 11 drives the connecting block 17 to move along the through groove 14 under the action of the lead screw 23. When the punch 20 moves above the collection box 33, the controller controls the air delivery pump 18 to work. The air delivery pump 18 conveys external air into the air collection cavity 31 to push the sealing plate 25 downward. The sealing plate 25 drives the push head 28 to move downward. The bottom end of the push head 28 extends out of the through hole 29, and pushes the battery shell away from the punch 20. The battery shell falls into the collection box 33 under the action of gravity. Then, the controller controls the driving motor 11 to reverse and simultaneously controls the second telescopic mechanism 24 to contract, and moves the punch 20 to the topmost position. Then, the second mounting seat 9 contacts the pressure sensor 34 driven by the connecting block 17, and the injection molding of the next battery shell is carried out.

[0041] Furthermore, as Figure 3 shown, a spring 30 is sleeved on the side of each connecting rod 27. When the top of the support block 26 contacts the top of the air collection cavity 31, the spring 30 is in a compressed state. The top end of each spring 30 is fixed to the bottom of the sealing plate 25, and the bottom end of each spring 30 is fixed to the bottom of the air collection cavity 31. Under the elastic force of the spring 30, the sealing plate 25 can be pushed, so that the sealing plate 25 moves to the topmost position of the air collection cavity 31, and the push head 28 is flush with the bottom end of the through hole 29, which will not interfere with the injection molding quality.

[0042] Furthermore, as Figure 2 shown, an isolation sleeve 15 is sleeved on the side of the lead screw 23. The two ends of the isolation sleeve 15 are respectively fixed to the side of the connecting block 17 and the through groove 14. The isolation sleeve 15 is a flexible telescopic cover, which can expand and contract as the connecting block 17 moves. In this way, while not interfering with the movement of the connecting block 17, the lead screw 23 can be wrapped, avoiding friction and damage between the air duct 16 and the lead screw 23.

[0043] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A battery housing injection mold that is easy to unload, comprising a concave mold (19), characterized in that: A first mounting seat (3) is installed at the bottom of the female mold (19), and two sides of the bottom of the first mounting seat (3) are fixed to the base (1) through brackets, and a top plate (10) is fixedly installed on the top edge of the base (1) through a plurality of support rods (7), and a second mounting seat (9) is provided at the bottom of the top plate (10), and a male mold (20) matching the female mold (19) is installed at the bottom of the second mounting seat (9), and the male mold (20) is located above the female mold (19); Both sides of the top of the second mounting seat (9) are fixed to the fixed plate (22) through the second telescopic mechanism (24); a connecting block (17) is installed on the top of the fixed plate (22); a through slot (14) is provided on the top of the top plate (10); the top of the connecting block (17) passes through the through slot (14); a screw rod (23) is rotatably connected inside the through slot (14); the screw rod (23) passes through the connecting block (17) and is threadedly engaged with the connecting block (17); one end of the screw rod (23) is connected to the drive motor (11) through the gear box (12); and the drive motor (11) is fixed on the top of the top plate (10); An air delivery pump (18) is installed on the top of the top plate (10), and an air outlet end of the air delivery pump (18) is connected to an air guide pipe (16). One end of the air guide pipe (16) passes through the fixing plate (22) and the second mounting seat (9) and is connected to the top of the punch (20). An air collecting cavity (31) is provided inside the punch (20), and an end of the air guide pipe (16) is connected to the inside of the air collecting cavity (31). A sealing plate (25) is provided inside the gas collecting cavity (31), the edge of the sealing plate (25) is sealed with the inner wall of the gas collecting cavity (31), a plurality of connecting rods (27) are installed at the bottom of the sealing plate (25), a pusher head (28) is installed at the bottom of the connecting rods (27), and a plurality of through holes (29) are opened at the bottom of the punch (20), each pusher head (28) extends into a corresponding through hole (29) and is sealed with the through hole (29); Strip movable plates (5) are provided on both sides of the top of the first mounting seat (3), the bottom of each strip movable plate (5) is connected to the first mounting seat (3) through a first telescopic mechanism (4), and positioning rods (8) are vertically installed on both sides of the top of the strip movable plates (5), and a plurality of positioning holes (21) are opened on the top edge of the second mounting seat (9), and when the strip movable plate (5) is located at the uppermost end, the top of the positioning rod (8) passes through the positioning hole (21); A positioning plate (32) is installed at one end of the bottom of the top plate (10), and a pressure sensor (34) is installed on the side of the positioning plate (32) close to the second mounting seat (9). When the side surface of the second mounting seat (9) abuts against the pressure sensor (34), the convex mold (20) is located above the concave mold (19) and is aligned with the concave mold (19).

2. The battery housing injection mold that is easy to unload according to claim 1, characterized in that: A strip-shaped limiting plate (13) is installed on the top of the connecting block (17), both ends of the strip-shaped limiting plate (13) extend to the top of the top plate (10), and both ends of the bottom of the strip-shaped limiting plate (13) are slidably connected to a guide rail fixed on the top of the top plate (10) through a slider.

3. The battery housing injection mold for easy unloading according to claim 1, characterized in that: A support block (26) is symmetrically mounted on the top of the sealing plate (25). When the top of the support block (26) contacts the top of the gas collecting chamber (31), the bottom end of the pusher head (28) is flush with the bottom end of the through hole (29).

4. The battery housing injection mold for easy unloading according to claim 3, characterized in that: A spring (30) is sleeved on the side of each connecting rod (27). When the top of the support block (26) contacts the top of the air collecting chamber (31), the spring (30) is in a compressed state. The top end of each spring (30) is fixed to the bottom of the sealing plate (25), and the bottom end of each spring (30) is fixed to the bottom of the air collecting chamber (31).

5. The battery housing injection mold for easy unloading according to claim 1, characterized in that: A collection box (33) is installed on one side of the top of the base (1), and the collection box (33) is located below the through slot (14).

6. The battery housing injection mold for easy unloading according to claim 1, characterized in that: The side surface of the screw rod (23) is covered with an isolating sleeve (15), and the two ends of the isolating sleeve (15) are respectively fixed on the side surfaces of the connecting block (17) and the through groove (14).

7. The battery housing injection mold for easy unloading according to claim 1, characterized in that: A control cabinet (6) is installed on the side of one of the support rods (7), and a controller inside the control cabinet (6) is connected to a pressure sensor (34), a first telescopic mechanism (4), a second telescopic mechanism (24), a driving motor (11) and an air delivery pump (18) through wires.

8. The battery housing injection mold for easy unloading according to claim 1, characterized in that: Guide rods (2) are installed on both sides of the bottom of the strip-shaped movable plate (5), and the bottom of the guide rods (2) passes through the first mounting seat (3).

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