A battery pack left shell die-casting mold

Abstract

The utility model relates to die casting mould technical field, concretely relates to a battery package left -hand shell die casting mould, including fixed mould seat, set up on fixed mould seat fixed mould core, set up on fixed mould seat side pull mechanism, set up on one side of fixed mould seat movable mould seat and set up on movable mould seat movable mould core, the inside form mould cavity after movable mould core and fixed mould core close, movable mould core includes the mould core main part fixed in one side of movable mould seat, the side surface of mould core main part is equipped with a plurality of mounting groove, movable mould core still includes a plurality of side core -pulling blocks, and side core -pulling blocks correspond with mounting groove one to one, and side core -pulling blocks can be installed in mounting groove, side pull mechanism includes the fixed frame fixed in movable mould seat side, and the inboard of fixed frame is installed with the mounting seat for driving side core -pulling blocks to move, and side core -pulling blocks are fixed on mounting seat. The application realizes movable mould core can quickly and workpiece separate, thereby reduces workpiece and mould to occur when demoulding and sticks, leads to mould damage.

Description

Technical Field

[0001] This utility model relates to the field of die-casting mold technology, specifically to a die-casting mold for the left shell of a battery pack. Background Technology

[0002] As a core protective component of new energy vehicles and energy storage systems, the battery pack casing plays a crucial role in protecting the safe operation of the battery modules. It is typically constructed from high-strength aluminum alloy, composite materials, or steel, and formed through precision die casting or stamping processes, resulting in lightweight, high rigidity, and corrosion resistance. The battery pack casing provides sealing, efficient heat dissipation, and impact protection, and integrates internal auxiliary structures such as thermally conductive adhesive and cushioning foam to effectively resist mechanical impacts, environmental corrosion, and the risk of thermal runaway. When manufacturing battery pack casings through die casting, a die casting mold is required.

[0003] Chinese patent CN206717000U discloses a die-casting mold and die-casting apparatus, relating to the field of mold processing technology. The die-casting mold includes a matching male mold plate and a female mold plate. The male mold plate has a moving mold core, and the female mold plate has a fixed mold core. The moving and fixed mold cores can be closed to form a cavity. A first temperature control device is installed inside the moving mold core, and a second temperature control device is installed inside the fixed mold core. Both the moving and fixed mold cores are made of beryllium bronze. A sprue sleeve is provided on the female mold plate. The die-casting apparatus includes a die-casting machine and the aforementioned die-casting mold. The injection head of the die-casting machine is fitted into the sprue sleeve. The amorphous alloy master alloy liquid cools and solidifies within the cavity formed by the closing of the moving and fixed mold cores. The beryllium bronze moving and fixed mold cores have excellent thermal conductivity, enabling efficient heat transfer from the alloy liquid to the first and second temperature control devices, thus allowing the alloy liquid to cool rapidly and obtain a high-performance amorphous alloy.

[0004] Existing patent documents describe die-casting molds and devices that fix a moving mold core and a fixed mold core to a male mold plate and a female mold plate, respectively. The male and female mold plates then drive the moving and fixed mold cores to close, and the molten metal is injected into the mold cavity through a sprue. After the molten metal cools within the mold cavity, the desired workpiece is formed. These die-casting molds consist of a moving mold core and a fixed mold core. When removing the workpiece after it has been formed, the moving and fixed mold cores are first separated, and then the workpiece is ejected from the mold cavity by an ejector pin. However, after the molten metal in the mold cavity solidifies from a liquid state, the workpiece, due to thermal expansion and contraction, will tightly adhere to the mold core, making it difficult for the ejector pin to remove the workpiece from the mold core. Furthermore, the workpiece is prone to scratching the surface of the mold core, resulting in scratches and mold damage. Therefore, a die-casting mold for the left shell of a battery pack is proposed. Utility Model Content

[0005] To address the aforementioned issues, a die-casting mold for the left casing of a battery pack is provided. When the moving mold core is fully closed with the fixed mold core, a mold cavity for casting is formed between the fixed and moving mold cores. After the casting liquid cools and solidifies within the mold cavity, a complete workpiece is formed. A cylinder then drives the mounting base to move in the opposite direction, causing the mounting base to move the side core-pulling block in the opposite direction along the mounting groove. At this point, the side core-pulling block releases the workpiece. This allows the moving mold core to quickly detach from the workpiece, thereby reducing the risk of the workpiece sticking to the mold during demolding and causing mold damage.

[0006] To address the existing technical problems, this application provides a die-casting mold for the left shell of a battery pack, including a fixed mold base, a fixed mold core disposed on the fixed mold base, a side pull mechanism disposed on the fixed mold base, a movable mold base disposed on one side of the fixed mold base, and a movable mold core disposed on the movable mold base. After the movable mold core and the fixed mold core are closed, a mold cavity is formed inside. The movable mold core includes a mold core body fixed on one side of the movable mold base, and multiple mounting grooves are opened on the side of the mold core body. The moving mold core also includes multiple side core-pulling blocks, each corresponding to a mounting slot, and the side core-pulling blocks can be installed in the mounting slot. The side pulling mechanism includes a fixed frame fixed to the side of the moving mold base, and an installation seat for driving the side core-pulling block to move is installed on the inner side of the fixed frame. The side core-pulling block is fixed on the installation seat. A cylinder for driving the mounting base to move is also fixed on one side of the mounting bracket.

[0007] As one technical solution of this application, the mounting base is provided with a mounting groove, and a mounting push rod is mounted in the mounting groove. The mounting push rod is fixedly connected to the output end of the cylinder.

[0008] As one technical solution of this application, a first side slider is fixed on the side of the mounting base; The moving mold base has several second limiting bosses symmetrically arranged on one side. One side of the second limiting boss is an inclined surface, and a second side slider is fixed on the inclined surface. The side of the second side slider away from the inclined surface can slide and cooperate with the side of the first side slider.

[0009] As one technical solution of this application, the inner side of the fixing frame is symmetrically fixed with limiting blocks for limiting the mounting base; The bottom of both sides of the mounting base is fixed with a first limiting boss, and one side of the first limiting boss slides in contact with the limiting block.

[0010] As one technical solution of this application, a limit sleeve is fixed on one side of the moving mold base; A positioning guide rod that can be inserted into the limiting sleeve is installed on one side of the fixed mold base.

[0011] As one technical solution of this application, the fixed mold base is fixed with a pouring port for pouring casting liquid into the mold cavity, and the pouring port is connected to the mold cavity.

[0012] The advantages of this utility model compared to the prior art are: When the moving mold core is fully closed with the fixed mold core, a mold cavity for casting is formed between the fixed and moving mold cores. After the casting liquid cools and solidifies within the mold cavity to form a complete workpiece, the cylinder drives the mounting base to move in the opposite direction, causing the mounting base to move the side core-pulling block in the opposite direction along the mounting groove. At this time, the side core-pulling block releases the workpiece. This allows the moving mold core to quickly detach from the workpiece, thereby reducing the risk of the workpiece sticking to the mold during demolding and causing damage to the mold. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of a die-casting mold for the left casing of a battery pack.

[0014] Figure 2 This is an exploded view of a die-casting mold for the left casing of a battery pack.

[0015] Figure 3 This is a three-dimensional view of the moving mold base in the die-casting mold of the left shell of a battery pack.

[0016] Figure 4 This is an exploded view of the moving mold core in the die-casting mold of the left casing of a battery pack.

[0017] Figure 5 A three-dimensional structural diagram of the side pull mechanism in the die-casting mold of the left shell of a battery pack. Figure 1 .

[0018] Figure 6 A three-dimensional structural diagram of the side pull mechanism in the die-casting mold of the left shell of a battery pack. Figure 2 .

[0019] Figure 7 This is a three-dimensional view of the fixed mold base in the die-casting mold of the left shell of a battery pack.

[0020] The following are the labels in the diagram: 1. Moving mold base; 11. Limiting sleeve; 2. Moving mold core; 21. Mold core body; 211. Mounting slot; 22. Side core pull block; 3. Side pulling mechanism; 31. Fixing frame; 32. Cylinder; 33. Limiting block; 34. Mounting seat; 341. First limiting boss; 342. First side slider; 343. Mounting slot; 344. Mounting push rod; 4. Fixed mold base; 41. Sprue; 42. Fixed mold core; 43. Positioning guide rod; 44. Second limiting boss; 45. Second side slider. Detailed Implementation

[0021] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. See Figures 1-7 As shown, a die-casting mold for the left shell of a battery pack includes a fixed mold base 4, a fixed mold core 42 disposed on the fixed mold base 4, a side pulling mechanism 3 disposed on the fixed mold base 4, a movable mold base 1 disposed on one side of the fixed mold base 4, and a movable mold core 2 disposed on the movable mold base 1. After the movable mold core 2 and the fixed mold core 42 are closed, a mold cavity is formed inside. The movable mold core 2 includes a mold core body 21 fixed on one side of the movable mold base 1. Multiple mounting grooves 211 are opened on the side of the mold core body 21. The moving mold core 2 also includes multiple side core-pulling blocks 22, each of which corresponds to a mounting groove 211, and the side core-pulling blocks 22 can be installed in the mounting groove 211. The side pulling mechanism 3 includes a fixed frame 31 fixed to the side of the moving mold base 1. The inner side of the fixed frame 31 is equipped with a mounting seat 34 for driving the side core-pulling block 22 to move. The side core-pulling block 22 is fixed on the mounting seat 34. A cylinder 32 for driving the mounting base 34 to move is also fixed on one side of the mounting bracket 31.

[0022] The side core-pulling block 22 is fixed to the mounting base 34. When the cylinder 32 is activated, it moves the mounting base 34, causing the side core-pulling block 22 to enter the mounting groove 211, making the side of the side core-pulling block 22 in close contact with the side of the mounting groove 211. At this time, the side core-pulling block 22 and the mold core body 21 form a complete moving mold core 2. When the moving mold core 2 is completely closed with the fixed mold core 42, a mold cavity for casting is formed between the fixed mold core 42 and the moving mold core 2. After the casting liquid cools and solidifies in the mold cavity to form a complete workpiece, the cylinder 32 moves the mounting base 34 in the opposite direction, causing the mounting base 34 to move the side core-pulling block 22 in the opposite direction along the mounting groove 211. At this time, the side core-pulling block 22 releases the workpiece. This allows the moving mold core 2 to quickly detach from the workpiece, thereby reducing the adhesion between the workpiece and the mold during demolding and preventing damage to the mold.

[0023] See Figure 5 and Figure 6 As shown, the mounting base 34 has a mounting slot 343, and a mounting push rod 344 is mounted in the mounting slot 343. The mounting push rod 344 is fixedly connected to the output end of the cylinder 32.

[0024] A mounting slot 343 is provided on the mounting base 34, and one end of the mounting push rod 344 is then mounted in the mounting slot 343. When the cylinder 32 is started, the cylinder 32 will drive the mounting push rod 344 through its output end, and the mounting base 34 will then move due to the movement of the mounting push rod 344.

[0025] See Figure 5 , Figure 6 and Figure 7 As shown, a first side slider 342 is fixed to the side of the mounting base 34; A number of second limiting bosses 44 are symmetrically arranged on one side of the moving mold base 1. One side of the second limiting bosses 44 is an inclined surface, and a second side slider 45 is fixed on the inclined surface. The side of the second side slider 45 away from the inclined surface can slide and cooperate with the side of the first side slider 342.

[0026] The second side slider 45 is fixed on the inclined surface of the second limiting boss 44. When the moving mold base 1 assembly approaches the fixed mold base 4, the moving mold base 1 will drive the side pulling mechanism 3 to move synchronously. The first side slider 342 fixed on the mounting base 34 will contact the side of the second side slider 45, so that the second limiting boss 44 squeezes the first side slider 342 through the second side slider 45, thereby making the first side slider 342 squeeze the mounting base 34, causing the mounting base 34 to push the side core pull block 22. At this time, the side of the side core pull block 22 is in close contact with the side of the mounting groove 211, achieving a complete seal at the contact position between the side core pull block 22 and the mold core body 21.

[0027] See Figure 5 and Figure 6 As shown, the inner side of the fixing frame 31 is symmetrically fixed with limiting blocks 33 for limiting the mounting base 34; The bottom of both sides of the mounting base 34 is fixed with a first limiting boss 341, and one side of the first limiting boss 341 slides in contact with the limiting block 33.

[0028] To ensure the stability of the mounting base 34 during movement, first limiting bosses 341 are fixed to both sides of the mounting base 34, and limiting blocks 33 are symmetrically fixed to the inner side of the fixing frame 31. When the mounting base 34 moves, one side of the mounting base 34 can slide along the bottom of the limiting block 33. The limiting block 33 and the first limiting bosses 341 cooperate to limit the mounting base 34, thereby ensuring the stability of the mounting base 34.

[0029] See Figure 2 , Figure 3 and Figure 7 As shown, a limit sleeve 11 is fixed on one side of the moving mold base 1; A positioning guide rod 43 that can be inserted into the limiting slide sleeve 11 is installed on one side of the fixed mold base 4.

[0030] To ensure precise mold closing between the moving mold base 1 and the fixed mold base 4, a limiting sleeve 11 is fixed on the moving mold base 1, and a positioning guide rod 43 is fixed on one side of the fixed mold base 4. When the moving mold base 1 approaches the fixed mold base 4, the positioning guide rod 43 on the fixed mold base 4 inserts into the limiting sleeve 11. The limiting sleeve 11 and the positioning guide rod 43 work together to limit the movement of the fixed mold base 4 and the moving mold base 1, thereby improving the precise closing of the moving mold base 1 and the fixed mold base 4.

[0031] See Figure 1 and Figure 2 As shown, a pouring port 41 for pouring casting liquid into the mold cavity is fixed on the fixed mold base 4, and the pouring port 41 is connected to the mold cavity.

[0032] When pouring the casting liquid into the mold cavity, the casting liquid is poured into the fixed sprue 41 on the fixed mold base 4. At this time, the casting liquid will enter the mold cavity through the sprue 41.

[0033] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A die-casting mold for the left casing of a battery pack, comprising a fixed mold base (4), a fixed mold core (42) disposed on the fixed mold base (4), a side pull mechanism (3) disposed on the fixed mold base (4), a movable mold base (1) disposed on one side of the fixed mold base (4), and a movable mold core (2) disposed on the movable mold base (1), characterized in that, After the moving mold core (2) and the fixed mold core (42) are closed, a mold cavity is formed inside. The moving mold core (2) includes a mold core body (21) fixed on one side of the moving mold base (1). Multiple mounting slots (211) are provided on the side of the mold core body (21). The moving mold core (2) also includes multiple side core-pulling blocks (22), each of which corresponds to a mounting groove (211), and the side core-pulling blocks (22) can be installed in the mounting groove (211); The side pulling mechanism (3) includes a fixed frame (31) fixed on the side of the moving mold base (1), and a mounting seat (34) for driving the side core-pulling block (22) to move is installed on the inner side of the fixed frame (31). The side core-pulling block (22) is fixed on the mounting seat (34). A cylinder (32) for driving the mounting base (34) to move is also fixed on one side of the fixing frame (31).

2. The die-casting mold for the left casing of a battery pack according to claim 1, characterized in that, The mounting base (34) has a mounting slot (343) and a mounting push rod (344) is mounted in the mounting slot (343). The mounting push rod (344) is fixedly connected to the output end of the cylinder (32).

3. The die-casting mold for the left casing of a battery pack according to claim 1, characterized in that, The mounting base (34) has a first side slider (342) fixed on its side. The moving mold base (1) has several second limiting bosses (44) symmetrically arranged on one side. One side of the second limiting bosses (44) is an inclined surface, and a second side slider (45) is fixed on the inclined surface. The side of the second side slider (45) away from the inclined surface can slide and cooperate with the side of the first side slider (342).

4. The die-casting mold for the left casing of a battery pack according to claim 1, characterized in that, The inner side of the fixing frame (31) is symmetrically fixed with limiting blocks (33) for limiting the mounting base (34). The bottom of both sides of the mounting base (34) is fixed with a first limiting boss (341), and one side of the first limiting boss (341) slides in contact with the limiting block (33).

5. The die-casting mold for the left casing of a battery pack according to claim 1, characterized in that, A limiting sleeve (11) is fixed on one side of the moving mold base (1). A positioning guide rod (43) capable of being inserted into the limiting slide sleeve (11) is installed on one side of the fixed mold base (4).

6. The die-casting mold for the left casing of a battery pack according to claim 1, characterized in that, The fixed mold base (4) is fixed with a pouring port (41) for pouring the casting liquid into the mold cavity, and the pouring port (41) is connected to the mold cavity.

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