Pouring mold for processing lithium battery shell

Abstract

The utility model discloses a casting mould for processing a lithium battery shell, and particularly relates to the technical field of lithium battery processing, which comprises a lower mould and an upper mould at the top of the lower mould, the bottom of the lower mould is connected with a bottom plate, the top of the upper mould is connected with a top plate, a mould groove is arranged in the middle of the surface of the upper mould, and a mould core is arranged at the top of the lower mould. Two hydraulic rods are arranged between the bottom plate and the top plate, a positioning assembly is arranged between the lower die and the upper die, and a limiting assembly is arranged between the bottom plate and the top plate. The positioning rod is matched with the spring, so that the impact force between the upper die and the lower die can be reduced, and the service life of the upper die and the lower die can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, and more specifically, to a casting mold for processing lithium battery shells. Background Art

[0002] Lithium batteries are primary batteries that use lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. They are different from rechargeable lithium-ion batteries and lithium-ion polymer batteries. When processing lithium batteries, their corresponding shells need to be cast. However, existing casting equipment usually injects molten material through a pouring port. Since the molten material easily sticks to the inner wall of the pouring port, it will cause the molten material to accumulate inside the pouring port over a long period of time, which can easily cause the pouring port to be blocked, thus affecting the subsequent use of the equipment.

[0003] The utility model patent with patent publication number CN219632526U discloses a casting mold for processing lithium battery shells. The advantage of this structure is that by setting a conducting rod, after the casting is completed, the conducting rod can be used to clean the molten material remaining on the inner wall of the diversion hole, dredge the diversion hole, and prevent the diversion hole from being blocked.

[0004] However, in actual use, although this structure can clean the inside of the diversion hole, when the hydraulic rod drives the lower mold to contact the upper mold, when the lower mold moves faster, it is easy to cause a large impact force between the lower mold and the upper mold, which not only easily causes damage between the lower mold and the upper mold, but also causes the accuracy between the lower mold and the upper mold, thereby affecting the quality of mold processing. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, the present invention provides a casting mold for processing a lithium battery shell to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a casting mold for processing lithium battery shells, comprising a lower mold and an upper mold on the top of the lower mold, the bottom of the lower mold is connected to a bottom plate, the top of the upper mold is connected to a top plate, a mold groove is opened in the middle of the surface of the upper mold, a mold core is provided on the top of the lower mold, two hydraulic rods are provided between the bottom plate and the top plate, a positioning assembly is provided between the lower mold and the upper mold, and a limit assembly is provided between the bottom plate and the top plate; the positioning assembly includes two positioning rods arranged on the top of the lower mold and located on both sides of the mold core, the upper mold and two positioning holes are opened on both sides of the mold groove, the tops of the two positioning rods are both located inside the positioning holes, the tops of the two positioning rods are both provided with limit plates, the tops of the limit plates are provided with a spring, one end of the spring is connected to the inner wall of the positioning hole, which is beneficial to improving the accuracy between the upper mold and the lower mold.

[0007] Preferably, the limiting assembly includes two limiting rods arranged on the top of the base plate and located on both sides of the lower mold, a plurality of limiting holes are opened on the surface of the top plate, and the plurality of limiting rods are located inside the limiting holes. A baffle is provided on the top of the plurality of limiting rods and located on the top of the top plate, which is conducive to limiting the upper mold and the lower mold.

[0008] Preferably, a plurality of holes are evenly opened on the inner walls of the plurality of limiting holes, and sliding balls are provided inside the plurality of holes, which is beneficial to reducing the friction between the limiting rod and the limiting hole.

[0009] Preferably, a movable groove is provided on the surface of the bottom plate of the lower mold, a through groove is provided on the surface of the bottom plate, the through groove is connected to the movable groove, a movable plate is provided inside the movable groove, an electric push rod is provided inside the through groove, the output end of the electric push rod passes through the through groove and extends into the movable groove, the output end of the electric push rod is connected to the surface of the movable plate, the bottom of the mold core is located inside the movable groove and connected to the surface of the movable plate, which is conducive to demolding the product.

[0010] Preferably, an injection port is provided on the surface of the top plate, and the injection port is connected to the mold groove, which is conducive to conveying the molten material.

[0011] Preferably, a slide groove is provided on the surface of the top plate and located outside the injection port, a slide rod is provided inside the slide groove, a slider is provided on the slide rod, a connecting rod is provided on one side of the slider, and a scraper is provided on one side of the connecting rod and located inside the injection port, which is conducive to cleaning the inner wall of the injection port.

[0012] The technical effects and advantages of this utility model are:

[0013] 1. By setting a positioning assembly, when the upper mold moves downward, the positioning rod moves along the positioning groove on the surface of the upper mold, causing the spring to expand and contract, thereby reducing the impact force between the upper mold and the lower mold. This can avoid the impact force between the upper mold and the lower mold, which may cause damage to the upper mold and the lower mold, and is beneficial to the service life of the upper mold and the lower mold;

[0014] 2. By setting a limit assembly, when the top plate moves, the limit hole is driven to move along the surface of the limit rod, and friction is generated between the limit rod and the sliding ball inside the hole, thereby reducing the friction between the limit hole and the limit rod, avoiding wear of the limit rod, and helping to improve the accuracy of the top plate limit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0018] Figure 4 This is a schematic diagram of the positioning component structure of the present utility model.

[0019] Figure 5 For the utility model Figure 2 A is a partial enlarged schematic diagram.

[0020] The accompanying drawings are marked as follows: 1. lower mold; 2. upper mold; 3. bottom plate; 4. top plate; 5. mold groove; 6. mold core; 7. hydraulic rod; 8. positioning hole; 9. limit plate; 10. spring; 11. limit rod; 12. limit hole; 13. baffle; 14. slide ball; 15. movable plate; 16. electric push rod; 17. injection port; 18. slide rod; 19. slider; 20. connecting rod; 21. scraper; 22. positioning rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] As attached Figure 1-5 A casting mold for processing a lithium battery shell shown in the figure includes a lower mold 1 and an upper mold 2 on the top of the lower mold 1. The bottom of the lower mold 1 is connected to a bottom plate 3, and the top of the upper mold 2 is connected to a top plate 4. A mold groove 5 is provided in the middle of the surface of the upper mold 2, and a mold core 6 is provided on the top of the lower mold 1. Two hydraulic rods 7 are provided between the bottom plate 3 and the top plate 4. A positioning assembly is provided between the lower mold 1 and the upper mold 2, and a limit assembly is provided between the bottom plate 3 and the top plate 4; the positioning assembly includes two positioning rods 22 arranged on the top of the lower mold 1 and located on both sides of the mold core 6, and the upper mold 2 has two positioning holes 8 on both sides of the mold groove 5. The tops of the two positioning rods 22 are both located inside the positioning hole 8, and the tops of the two positioning rods 22 are both provided with a limit plate 9. The top of the limit plate 9 is provided with a spring 10, and one end of the spring 10 is connected to the inner wall of the positioning hole 8.

[0023] As attached Figure 1 、 2 As shown in Figure 3, the limiting assembly includes two limiting rods 11 arranged on the top of the bottom plate 3 and located on both sides of the lower mold 1. A plurality of limiting holes 12 are opened on the surface of the top plate 4. The plurality of limiting rods 11 are all located inside the limiting holes 12. A baffle 13 is provided on the top of the plurality of limiting rods 11 and located on the top of the top plate 4. When the top plate 4 moves, the limiting holes 12 move along the limiting rods 11, which can limit the upper mold 2 and the lower mold 1.

[0024] As attached Figure 3 As shown, multiple holes are evenly opened on the inner walls of multiple limiting holes 12, and sliding balls 14 are provided inside the multiple holes. When the limiting rod 11 moves, the sliding balls 14 are driven to rotate inside the holes, which can reduce the friction between the limiting rod 11 and the limiting holes 12.

[0025] As attached Figure 2 As shown, a movable groove is provided on the surface of the bottom plate 3 of the lower mold 1, and a through groove is provided on the surface of the bottom plate 3. The through groove is connected to the movable groove, a movable plate 15 is provided inside the movable groove, and an electric push rod 16 is provided inside the through groove. The output end of the electric push rod 16 passes through the through groove and extends to the inside of the movable groove. The output end of the electric push rod 16 is connected to the surface of the movable plate 15. The bottom of the mold core 6 is located inside the movable groove and is connected to the surface of the movable plate 15. Starting the electric push rod 16 to drive the movable plate 15 to move can move the mold core 6 to the inside of the movable groove, and the mold core 6 can be separated from the product.

[0026] As attached Figure 2 As shown, a material injection port 17 is provided on the surface of the top plate 4 , and the material injection port 17 is connected to the mold cavity 5 , and the molten material can be transported to the interior of the mold cavity 5 through the material injection port 17 .

[0027] As attached Figure 2 、 3 As shown in Figures 5 and 6, a slide groove is provided on the surface of the top plate 4 and located outside the injection port 17, a slide rod 18 is provided inside the slide groove, a slider 19 is provided on the slide rod 18, a connecting rod 20 is provided on one side of the slider 19, and a scraper 21 is provided on one side of the connecting rod 20 and located inside the injection port 17. When the connecting rod 20 is moved, the slider 19 drives the scraper 21 to move along the slide rod 18, so that the scraper 21 contacts the inner wall of the injection port 17, thereby cleaning the inner wall of the injection port 17.

[0028] The working principle of the utility model is as follows: when in use, firstly, the two hydraulic rods 7 are started to drive the top plate 4 to move downward, and the top plate 4 drives the upper mold 2 to contact with the lower mold 1, so that the positioning rod 22 moves along the positioning hole 8 on the surface of the upper mold 2, driving the spring 10 to expand and contract, which can reduce the impact force between the upper mold 2 and the lower mold 1, and avoid the collision between the upper mold 2 and the lower mold 1, which may cause damage to the upper mold 2 and the lower mold 1, so that the upper mold 2 and the lower mold 1 are in contact with each other, and the mold is placed inside the mold cavity 5. Then, the molten material is transported to the mold and the inside of the mold cavity 5 through the injection port 17, and the product can be formed;

[0029] After the product is formed, the hydraulic rod 7 baffle 13 moves upward to separate the upper mold 2 from the lower mold 1, and the mold cavity 5 from the mold core 6. Then the electric push rod 16 is started to drive the movable plate 15 and the mold core 6 to move along the movable groove, and the mold is moved into the movable groove. Then, the mold can be separated from the product, and the product can be quickly demoulded;

[0030] Since the top plate 4 moves along the limiting rod 11, it is easy to cause friction between the limiting rod 11 and the limiting groove on the surface of the top plate 4. After a period of use, the limiting rod 11 is easily damaged, thereby affecting the accuracy of limiting the top plate 4. When the top plate 4 moves, the sliding ball 14 is driven by the sliding ball 14 in the hole inside the limiting groove to contact the surface of the limiting rod 11, so that the limiting rod 11 drives the sliding ball 14 to slide inside the hole, thereby reducing the friction between the limiting hole 12 and the limiting rod 11.

[0031] Since the molten material easily sticks to the inner wall of the injection port 17, the slider 19 is driven to move along the slide rod 18 by pulling the connecting rod 20, so that the scraper 21 scrapes along the inner wall of the injection port 17, and then the inner wall of the injection port 17 can be cleaned. The utility model can reduce the impact force between the upper mold 2 and the lower mold 1 by cooperating with the spring 10 through the positioning rod 22, and can avoid wear of the limit rod 11 by cooperating with the sliding ball 14. The scraper 21 can facilitate cleaning of the inside of the injection port 17.

[0032] Finally, the above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical concepts disclosed in this utility model are intended to be covered by the claims of this utility model.

Claims

1. A casting mold for processing a lithium battery shell, comprising a lower mold (1) and an upper mold (2) on top of the lower mold (1), characterized in that: The bottom of the lower mold (1) is connected to a bottom plate (3), the top of the upper mold (2) is connected to a top plate (4), a mold groove (5) is provided in the middle of the surface of the upper mold (2), a mold core (6) is provided on the top of the lower mold (1), two hydraulic rods (7) are provided between the bottom plate (3) and the top plate (4), a positioning assembly is provided between the lower mold (1) and the upper mold (2), and a limit assembly is provided between the bottom plate (3) and the top plate (4); The positioning assembly includes two positioning rods (22) arranged on the top of the lower mold (1) and located on both sides of the mold core (6); the upper mold (2) is provided with two positioning holes (8) on both sides of the mold groove (5); the tops of the two positioning rods (22) are located inside the positioning holes (8); the tops of the two positioning rods (22) are provided with limiting plates (9); the tops of the limiting plates (9) are provided with springs (10); one end of the spring (10) is connected to the inner wall of the positioning hole (8).

2. A casting mold for processing a lithium battery shell according to claim 1, characterized in that: The limiting assembly comprises two limiting rods (11) arranged on the top of the bottom plate (3) and located on both sides of the lower mold (1); a plurality of limiting holes (12) are opened on the surface of the top plate (4); the plurality of limiting rods (11) are all located inside the limiting holes (12); and a baffle (13) is provided on the top of the plurality of limiting rods (11) and located on the top of the top plate (4).

3. The casting mold for processing a lithium battery shell according to claim 2, characterized in that: A plurality of holes are evenly formed on the inner walls of the plurality of limiting holes (12), and sliding beads (14) are arranged inside the plurality of holes.

4. The casting mold for processing a lithium battery shell according to claim 1, characterized in that: A movable groove is provided on the surface of the bottom plate (3) of the lower mold (1), a through groove is provided on the surface of the bottom plate (3), the through groove is connected to the movable groove, a movable plate (15) is provided inside the movable groove, an electric push rod (16) is provided inside the through groove, the output end of the electric push rod (16) passes through the through groove and extends into the movable groove, the output end of the electric push rod (16) is connected to the surface of the movable plate (15), and the bottom of the mold core (6) is located inside the movable groove and connected to the surface of the movable plate (15).

5. The casting mold for processing a lithium battery shell according to claim 1, characterized in that: A material injection port (17) is provided on the surface of the top plate (4), and the material injection port (17) is connected to the die groove (5).

6. The casting mold for processing a lithium battery shell according to claim 1, characterized in that: A sliding groove is provided on the surface of the top plate (4) and located outside the injection port (17); a sliding rod (18) is provided inside the sliding groove; a slider (19) is sleeved on the sliding rod (18); a connecting rod (20) is provided on one side of the slider (19); and a scraper (21) is provided on one side of the connecting rod (20) and located inside the injection port (17).

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