A battery casing injection mold

Abstract

This invention discloses a battery casing injection mold, belonging to the field of injection mold technology. The invention includes a fixed mold, a moving mold, and a push plate. The fixed mold has a recessed groove, and a release module is slidably connected to the bottom wall of the recessed groove, forming a cavity with the recessed groove. A sliding groove is formed on the bottom wall of the recessed groove, and an mounting groove is formed on the bottom surface of the sliding groove. A rotating shaft is inserted into the fixed mold, connecting a driven wheel and a driving wheel. The release module is connected to a sliding strip that engages with the sliding groove, and the sliding strip is connected to a rack that meshes with the driven wheel. The push plate is connected to a pull rod, which is connected to a spur rack that meshes with the driving wheel. Movement of the push plate drives the rotating shaft to rotate via the spur rack, and the driven wheel drives the release module to move. This invention, by setting up a release module, a pull rod, and a rotating shaft, and by using the pull rod connected to the push plate to drive the rotating shaft to rotate, causes the driven wheel to move the release module outward, thus achieving demolding of the battery casing and solving the problem of existing battery casings being unable to detach, affecting production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of injection mold technology, and in particular relates to an injection mold for a battery casing. Background Technology

[0002] Existing battery casings are all formed by injection molding and cooling. After cooling, they need to be demolded. The battery casing injection mold includes a moving mold and a fixed mold. The moving mold is fixed on the moving platen of the injection molding machine and moves with the moving platen when the mold is opened and closed.

[0003] Existing traditional injection molds have a single demolding device when demolding products. They usually use the ejector rod of the injection molding machine or a pull plate to pull the push plate to achieve demolding of the product when the mold is opened.

[0004] However, during demolding, the battery casing is easily stuck inside the mold cavity and cannot be removed. If the battery casing that has not been removed from the mold is not cleaned in time, the injection molding machine will be unable to produce normally, which will seriously affect the overall production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a battery casing injection mold. By setting a demolding module, a pull rod, and a rotating shaft, the push plate drives the pull rod during mold opening, and the rack drives the rotating shaft to rotate, causing the driven wheel to move the demolding module outward, thereby realizing the demolding of the battery casing. This solves the problem that existing battery casings cannot be demolded, which affects production efficiency.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] This invention relates to a battery casing injection mold, comprising a fixed mold, a moving mold, and a push plate connected to the moving mold. The fixed mold has side-by-side recessed grooves, and a release module is slidably connected to the bottom wall of the recessed grooves. The release module and the recessed grooves cooperate to form a cavity. The bottom wall of the recessed grooves has a sliding groove, and the bottom surface of the sliding groove has an installation groove. A rotating shaft is inserted into the fixed mold, and the rotating shaft is fixedly connected to a driven wheel located in the installation groove, and driving wheels located at both ends of the rotating shaft. A slide bar that cooperates with the sliding groove is fixedly connected to the lower surface of the release module, and a rack that meshes with the driven wheel is connected to the lower surface of the slide bar. Pull rods are connected to both sides of the push plate, and the pull rods are connected to a spur rack that meshes with the driving wheel. When the moving mold moves the push plate, the spur rack drives the rotating shaft to rotate, and the driven wheel drives the release module to move.

[0008] As a preferred embodiment of the present invention, the inner bottom surface of the settling tank is an inclined structure, the detachment module is fitted with the inner bottom surface of the settling tank on its lower surface, and the upper surface is a wedge-shaped block structure parallel to the inner top surface of the settling tank.

[0009] As a preferred embodiment of the present invention, the inner bottom surfaces of the chute and the settling tank are arranged parallel to each other.

[0010] As a preferred embodiment of the present invention, the groove is a T-shaped groove structure.

[0011] As a preferred embodiment of the present invention, the lower surface of the slide bar is provided with a strip groove, and the rack is located in the strip groove.

[0012] As a preferred embodiment of the present invention, a rectangular groove is provided on the lower surface of the pull rod, and the straight rack is located in the rectangular groove.

[0013] As a preferred embodiment of the present invention, several rollers are rotatably connected to both sides of the fixed mold, and the rollers are distributed on the upper and lower sides of the pull rod to support the pull rod and limit its vertical position.

[0014] As a preferred embodiment of the present invention, the pull rod is fixedly connected to a stop block, which is used to limit the position of the pull rod by abutting against the roller when the push plate moves away from the fixed mold.

[0015] As a preferred embodiment of the present invention, both sides of the push plate are fixedly connected to fixing blocks, the pull rod is fixedly connected to a guide rod, and one end of the guide rod movably passes through the fixing blocks and is fixedly connected to a limit block.

[0016] As a preferred embodiment of the present invention, the guide rod is fitted with two compression springs, which are located on both sides of the fixing block and are both in a compressed state.

[0017] The present invention has the following beneficial effects:

[0018] This invention features a release module slidably connected within a groove on a fixed mold, and a rotating shaft rotatably connected to it. A push plate connects to a pull rod. When the mold opens, the push plate drives the pull rod, which in turn uses a rack on the pull rod to engage with a drive wheel, causing the rotating shaft to rotate. The driven wheel then engages with a rack below the release module, causing the release module to move outward, thereby demolding the battery casing. This design avoids the battery casing from easily adhering to the cavity and being unable to detach, thus ensuring production reliability and improving overall production efficiency.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a battery casing injection mold during mold closing according to the present invention;

[0022] Figure 2 for Figure 1 Top view of the structure;

[0023] Figure 3 for Figure 2 Sectional view at point AA;

[0024] Figure 4 This is a schematic diagram of the fixed mold structure;

[0025] Figure 5 for Figure 4 The main view;

[0026] Figure 6 for Figure 5 Sectional view at point BB;

[0027] Figure 7 This is a schematic diagram of the modular structure;

[0028] Figure 8 This is a schematic diagram of the structure of a battery casing injection mold during mold opening according to the present invention;

[0029] Figure 9 for Figure 8 A structural diagram viewed from below;

[0030] Figure 10 for Figure 9 Enlarged structural diagram of section C;

[0031] Figure 11 for Figure 3 Schematic diagram of the structure after mold opening;

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1-Fixed mold, 2-Moving mold, 3-Push plate, 4-Removable mold, 5-Rotating shaft, 101-Sinking groove, 102-Slide groove, 103-Mounting groove, 104-Roller, 301-Tie rod, 302-Straight rack, 303-Rectangular groove, 304-Stop block, 305-Fixing block, 306-Guide rod, 307-Limiting block, 308-Compression spring, 401-Slide bar, 402-Rack, 403-Strip groove, 501-Driven wheel, 502-Driving wheel. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0036] Example 1

[0037] Please see Figure 1 and 4 As shown in Figure 6, the present invention is a battery casing injection mold, including a fixed mold 1, a moving mold 2, and a push plate 3 connected to the moving mold 2. The fixed mold 1 has a recessed groove 101 arranged side by side on one side near the moving mold. A release module 4 is slidably connected to the bottom wall of the recessed groove 101. The release module 4 and the recessed groove 101 cooperate to form a cavity.

[0038] like Figure 2 and 3 As shown, the moving mold 2 has a mold core connected to its side. After the mold is closed, the mold core fits into the cavity. Molten material is injected into the gap between the mold core and the cavity. After cooling and opening the mold, the battery case is formed.

[0039] The bottom wall of the settling tank 101 is provided with a sliding groove 102, which is a T-shaped groove structure. The bottom surface of the sliding groove 102 is provided with an installation groove 103. A rotating shaft 5 is inserted through the fixed mold 1, and the rotating shaft 5 is rotatably connected to the fixed mold 1 and passes through the fixed mold 1. The rotating shaft 5 is fixedly connected to a driven wheel 501 located in the installation groove 103, and a driving wheel 502 located at both ends of the rotating shaft 5. Both the driven wheel 501 and the driving wheel 502 are gears.

[0040] like Figure 7As shown, a slide bar 401 that mates with the slide groove 102 is fixedly connected to the lower surface of the release module 4. The release module 4 and the slide bar 401 can be an integral structure obtained through machining, and a rack 402 that meshes with the driven wheel 501 is connected to the lower surface of the slide bar 401. Specifically, a strip groove 403 is formed on the lower surface of the slide bar 401, and the rack 402 is located in the strip groove 403, so that the lower surface of the slide bar 401 keeps in contact with the bottom surface of the slide groove 102, improving the smoothness of the sliding of the release module 4.

[0041] like Figures 8-10 As shown, pull rods 301 are connected to both sides of the push plate 3, and the pull rods 301 are connected to a rack 302 that meshes with the drive wheel 502. When the moving mold 2 drives the push plate 3 to move, the rack 302 drives the rotating shaft 5 to rotate, and the driven wheel 501 drives the release module 4 to move.

[0042] The lower surface of the pull rod 301 has a rectangular groove 303, and the rack 302 is located within the rectangular groove 303. Simultaneously, two to four rollers 104 are rotatably connected to both sides of the fixed mold 1, as shown in the figure (three rollers). The three rollers 104 are distributed on the upper and lower sides of the pull rod 301. Specifically, two rollers 104 are located below the pull rod 301, on either side of the drive wheel 502, and the other roller 104 is located above the pull rod 301. The two rollers 104 below the pull rod 301 support the pull rod 301, while the upper roller 104 limits the vertical position of the pull rod 301, improving stability and ensuring that the pull rod 301 remains engaged with the drive wheel 502 during movement.

[0043] like Figure 8 and 11 As shown, during mold opening, the moving mold 2 drives the push plate 3 to move away from the fixed mold 1. The push plate 3 drives the pull rod 301 to move. The straight rack 302 and the driving wheel 502 cooperate to make the rotating shaft 5 rotate. The driven wheel 501 cooperates with the rack 402 connected to the slide bar 401. The rotation of the driven wheel 501 makes the demolding module 4 gradually slide towards the outside of the sink 101, thereby ensuring that the battery case can be smoothly removed from the cavity, realizing demolding, ensuring the normal production of the mold, and improving the overall production efficiency.

[0044] Among them, the pull rod 301 is welded or screwed to a stop 304. When the mold is opened, the stop 304 abuts against the roller 104 to limit the position of the pull rod 301 and prevent the pull rod 301 from slipping out accidentally.

[0045] Example 2

[0046] Based on Example 1, such as Figure 7As shown, the inner bottom surface of the sink 101 is a sloping structure, the sliding groove 102 is set parallel to the inner bottom surface of the sink 101, the detachment module 4 is attached to the inner bottom surface of the sink 101 on its lower surface, and the upper surface is a wedge-shaped block structure parallel to the inner top surface of the sink 101.

[0047] This ensures that when the mold is opened, as the ejector module 4 moves outward toward the sink 101, the distance between the upper surface of the ejector module 4 and the inner top surface of the sink 101 gradually increases, so that the distance between the ejector module 4 and the inner top surface of the sink 101 is greater than the length of the battery case, thereby further ensuring that the battery case can be smoothly demolded from the cavity and improving the overall reliability.

[0048] Example 3

[0049] Based on Embodiment 1 or 2, both sides of the push plate 3 are fixedly connected to a fixing block 305. The fixing block 305 has a through hole. The pull rod 301 is fixedly connected to a guide rod 306. One end of the guide rod 306 passes through the through hole and is movably inserted through the fixing block 305, and is welded or threaded to a limit block 307.

[0050] Meanwhile, the guide rod 306 is fitted with two compression springs 308, and the two compression springs 308 are located on both sides of the fixing block 305. One compression spring 308 has its two ends abutting against the limiting block 307 and the fixing block 305 respectively, and the other compression spring 308 has its two ends abutting against the fixing block 305 and the end face of the guide rod 306 respectively. Both compression springs 308 are in a compressed state.

[0051] When the detachable module 4 cannot move, the push plate 3 moves, and the compression spring 308 is compressed by the fixing block 305, so that the push plate 3 still has a certain range of movement, thereby improving the fault tolerance range of the matching degree between the moving position of the push plate 3 and the moving distance of the detachable module 4, and improving the overall reliability and stability.

[0052] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A battery casing injection mold, comprising a fixed mold (1), a moving mold (2), and a push plate (3) connected to the moving mold (2), characterized in that: The fixed mold (1) has side-by-side recesses (101), and a release module (4) is slidably connected to the bottom wall of the recesses (101). The release module (4) and the recesses (101) cooperate to form a cavity. The bottom wall of the settling trough (101) is provided with a sliding groove (102), and the bottom surface of the sliding groove (102) is provided with an installation groove (103); the fixed mold (1) is inserted with a rotating shaft (5), and the rotating shaft (5) is fixedly connected with a driven wheel (501) located in the installation groove (103) and a driving wheel (502) located at both ends of the rotating shaft (5); The lower surface of the detachment module (4) is fixedly connected to a slide bar (401) that cooperates with the slide groove (102), and the lower surface of the slide bar (401) is connected to a rack (402) that meshes with the driven wheel (501); Both sides of the push plate (3) are connected to pull rods (301), and the pull rods (301) are connected to a rack (302) that meshes with the drive wheel (502). When the moving mold (2) drives the push plate (3) to move, the rack (302) drives the rotating shaft (5) to rotate, and the driven wheel (501) drives the disengagement module (4) to move.

2. The battery casing injection mold according to claim 1, characterized in that, The inner bottom surface of the sinking trough (101) is a sloping structure, and the detachment module (4) is attached to the inner bottom surface of the sinking trough (101) on the lower surface, and the upper surface is a wedge-shaped block structure parallel to the inner top surface of the sinking trough (101).

3. The battery casing injection mold according to claim 2, characterized in that, The chute (102) is arranged parallel to the inner bottom surface of the sink (101).

4. The battery casing injection mold according to claim 3, characterized in that, The groove (102) is a T-shaped groove structure.

5. A battery casing injection mold according to claim 1, characterized in that, The lower surface of the slide bar (401) is provided with a strip groove (403), and the rack (402) is located in the strip groove (403).

6. The battery casing injection mold according to claim 1, characterized in that, The lower surface of the pull rod (301) is provided with a rectangular groove (303), and the rack (302) is located in the rectangular groove (303).

7. A battery casing injection mold according to claim 6, characterized in that, The fixed mold (1) is rotatably connected to several rollers (104) on both sides, and the rollers (104) are distributed on the upper and lower sides of the pull rod (301) to support the pull rod (301) and limit its vertical position.

8. A battery casing injection mold according to claim 7, characterized in that, The pull rod (301) is fixedly connected to a stop (304), which is used to limit the position of the pull rod (301) by the stop (304) abutting against the roller (104) when the push plate (3) moves away from the fixed mold (1).

9. A battery casing injection mold according to claim 1 or 6, characterized in that, Both sides of the push plate (3) are fixedly connected to fixing blocks (305), and the pull rod (301) is fixedly connected to a guide rod (306). One end of the guide rod (306) moves through the fixing block (305) and is fixedly connected to a limit block (307).

10. A battery casing injection mold according to claim 9, characterized in that, The guide rod (306) is fitted with two compression springs (308), and the two compression springs (308) are located on both sides of the fixing block (305), and both compression springs (308) are in a compressed state.

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