Die-casting die for aluminum shell

Abstract

The utility model relates to a die-casting die for an aluminum shell, which comprises an upper die frame, a lower die frame and die feet, the upper die frame and the lower die frame are stacked up and down, an upper die core and a lower die core which are stacked up and down are arranged between the upper die frame and the lower die frame, and a die cavity structure is formed between the upper die core and the lower die core. Mold feet are installed on the lower end face of the lower mold frame, the left end and the right end of the mold cavity structure extend towards the front side to form a butt joint plate forming cavity, a sprue bush is installed at the front portion of the upper mold frame, and a sprue spreader cover plate and a sprue spreader base are installed at the lower end of the sprue bush. The sprue spreader cover plate and the sprue spreader base are arranged in an upper shoe stacking manner, a sprue structure in butt joint with the sprue bush is formed between the sprue spreader cover plate and the sprue spreader base, and two main runners extending to the front end of the mold cavity structure are symmetrically arranged on the rear side of the sprue structure. The utility model has the characteristics that the product quality is ensured, the product completeness is ensured, the molten aluminum channeling phenomenon is avoided, and the like.

Description

Technical Field

[0001] This utility model relates to the field of die casting mold technology, and in particular to a die casting mold for aluminum shells. Background Technology

[0002] The aluminum casing of the automobile capacitor has two longitudinally extending, forward-facing mating lugs on one side. To ensure the quality of the capacitor casing, a vacuum mold is used for production during the die-casting process. However, this method has a problem: due to the two mating lugs, the slag bag layout, the aluminum liquid inlet, and the forming cavity of the mating lugs will interact under the vacuum force, causing the aluminum liquid to flow outwards, resulting in local defects in the product and affecting product quality. To solve the above problems, the mold structure needs to be improved. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a die-casting mold for aluminum shells, which has the characteristics of ensuring product quality, ensuring product integrity, and avoiding the phenomenon of molten aluminum flowing around.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: A die-casting mold for aluminum shells is provided, including an upper mold frame, a lower mold frame, and mold feet. The upper and lower mold frames are stacked vertically. An upper mold core and a lower mold core, also stacked vertically, are installed between the upper and lower mold frames, forming a mold cavity structure. A mold foot is installed on the lower end face of the lower mold frame. The left and right ends of the mold cavity structure extend forward to form a mating plate forming cavity. A sprue sleeve is installed at the front of the upper mold frame. A flow divider cone cover plate and a flow divider cone base are installed at the lower end of the sprue sleeve. The upper and lower mold frames are stacked on top of each other, forming a gate structure that connects with the gate sleeve. Two main runners extending to the front end of the mold cavity structure are symmetrically arranged on the rear side of the gate structure. A side runner that connects to the forming cavity of the mating plate is arranged on one side of the main runner. Several left slag bags are arranged on the left side of the mold cavity structure, several right slag bags are arranged on the right side of the mold cavity structure, and several rear slag bags are arranged on the rear side of the mold cavity structure. A vacuum venting block is installed between the left rear of the upper mold frame and the lower mold frame. The left, right, and rear slag bags are connected to the vacuum venting block through a central runner.

[0005] In this technical solution, the main flow channel is set at the front of the mold cavity structure, and two side flow channels are set to help fill the forming cavity of the mating plate. The front end of the mold cavity structure serves as the inlet for molten aluminum. The flow direction of molten aluminum in the mold cavity structure is controlled by the rear slag pack, the left slag pack on the left side, and the right slag pack on the right side. This prevents the molten aluminum from running wild during vacuuming, improves product quality, and ensures the integrity of the product.

[0006] As a supplement to this technical solution, the main channel is a herringbone-shaped flow channel with a forked tail. By setting the herringbone-shaped flow channel with a forked tail, the inflow speed of aluminum liquid is increased, and the filling efficiency is improved.

[0007] As a supplement to this technical solution, a front core-pulling structure is installed at the front part between the upper mold frame and the lower mold frame, a right core-pulling structure is installed at the right part between the upper mold frame and the lower mold frame, and a rear core-pulling structure is installed at the rear part between the upper mold frame and the lower mold frame. By setting the front core-pulling structure, the right core-pulling structure, and the rear core-pulling structure, the product can be made complete.

[0008] As a supplement to this technical solution, the front core-pulling structure includes a front core-pulling bracket, a front core-pulling cylinder, a front core-pulling slider, and a front core puller. The front core-pulling bracket is installed on the front side of the lower mold frame, and the front core-pulling slider is slidably installed on the front part of the lower mold frame. The front core-pulling bracket is equipped with a front core-pulling cylinder that connects to the main shaft and the front core-pulling slider. The rear end of the front core-pulling slider is equipped with a front core puller that inserts into the mold cavity structure. The forming cavity of the connecting plate is located on both sides of the rear end of the front core-pulling slider, and the diverter cone base is embedded in the upper end face of the front core-pulling slider.

[0009] As a supplement to this technical solution, the right-side core-pulling structure includes a right-side core-pulling bracket, a right-side core-pulling cylinder, and a right-side core-pulling slider. The right-side core-pulling bracket is installed on the right side of the lower mold frame, and a right-side core-pulling cylinder with its main shaft facing left is mounted on the right-side core-pulling bracket. The right-side core-pulling slider is installed on the right side of the lower mold frame and connected to the main shaft of the right-side core-pulling cylinder. The right-side slag bag is located on the upper left side of the right-side core-pulling slider.

[0010] As a supplement to this technical solution, the rear core-pulling structure includes a rear core-pulling bracket, a rear core-pulling cylinder, and a rear core-pulling block. The rear core-pulling bracket is installed on the rear side of the lower mold frame, and a rear core-pulling cylinder with its main shaft facing forward is mounted on the rear core-pulling bracket. The rear core-pulling block is installed at the rear of the lower mold frame, and the main shaft of the rear core-pulling block is connected to the main shaft of the rear core-pulling cylinder. Several rear slag bags are provided on the upper front side of the rear core-pulling block.

[0011] As a supplement to this technical solution, the vacuum exhaust block includes an exhaust block structure, a connecting shallow groove, a guide channel, and a vacuum pump connecting pipe. The exhaust block structure consists of two blocks stacked one on top of the other, connected by a mountain-shaped exhaust structure. A connecting shallow groove connecting to the central flow channel is provided at the right end of the exhaust block structure. A vacuum pump connecting pipe is installed on the upper left side of the lower exhaust block structure. A guide channel connecting to the vacuum pump connecting pipe is provided on the upper left side of the lower exhaust block structure. The vacuum pump connecting pipe facilitates the connection of the vacuum pump body.

[0012] As a supplement to this technical solution, an ejector plate that moves up and down is installed inside the mold foot, and several ejector pin structures that insert into the mold cavity structure are installed on the ejector plate.

[0013] Beneficial effects: This utility model relates to a die-casting mold for aluminum shells. By setting the main flow channel on the front side of the mold cavity structure and setting two side flow channels to help fill the forming cavity of the mating plate, the front end of the mold cavity structure serves as the inlet for molten aluminum. The flow direction of molten aluminum in the mold cavity structure is controlled by the rear slag pocket on the rear side, the left slag pocket on the left side, and the right slag pocket on the right side. This prevents the molten aluminum from running wild during vacuuming, improves product quality, and ensures the integrity of the product. It has the characteristics of guaranteeing product quality, ensuring product integrity, and preventing the phenomenon of molten aluminum running wild. Attached Figure Description

[0014] Figure 1 This is a structural view of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a utility model Figure 2 Sectional view along the AA direction;

[0017] Figure 4 This is a structural view of the present invention after the upper mold frame has been removed;

[0018] Figure 5 This is a top view of the present invention after removing the upper mold frame and the upper mold core;

[0019] Figure 6 This is a structural view of the front core-pulling structure, the right core-pulling structure, and the rear core-pulling structure described in this utility model. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0021] The embodiments of this utility model relate to a die-casting mold for aluminum shells, such as... Figure 1 As shown in Figure 6, the system includes an upper mold frame 1, a lower mold frame 2, and mold feet 3. The upper mold frame 1 and lower mold frame 2 are stacked vertically. An upper mold core 4 and a lower mold core 5, also stacked vertically, are installed between the upper mold frame 1 and lower mold frame 2, forming a mold cavity structure 14. Mold feet 3 are installed on the lower end face of the lower mold frame 2. The left and right ends of the mold cavity structure 14 extend forward, forming a mating plate forming cavity 36. A sprue sleeve 8 is installed at the front of the upper mold frame 1. A sprue cone cover plate 13 and a sprue cone base 16 are installed at the lower end of the sprue sleeve 8. The sprue cone cover plate 13 and the sprue cone base 16 are stacked vertically, forming a... The gating structure 15 is connected to the gating sleeve 8. The gating structure 15 has two main runners 17 symmetrically arranged on the rear side, extending to the front end of the mold cavity structure 14. One side of the main runner 17 is provided with a flow channel 18 that communicates with the forming cavity 36 of the mating plate. The left side of the mold cavity structure 14 is provided with several left slag bags 19. The right side of the mold cavity structure 14 is provided with several right slag bags 20. The rear side of the mold cavity structure 14 is provided with several rear slag bags 21. A vacuum venting block 12 is installed between the left rear part of the upper mold frame 1 and the lower mold frame 2. The left slag bags 19, right slag bags 20 and rear slag bags 21 are connected to the vacuum venting block 12 through a centralized flow channel.

[0022] In this technical solution, the main flow channel 17 is set on the front side of the mold cavity structure 14, and two flow channels 18 are set to help fill the forming cavity 36 of the mating plate. The front end of the mold cavity structure 14 serves as the inlet for molten aluminum. The flow direction of molten aluminum in the mold cavity structure 14 is controlled by the rear slag pack 21 on the rear side, the left slag pack 19 on the left side, and the right slag pack 20 on the right side. This prevents the molten aluminum from running around during the vacuuming process, improves product quality, and ensures the integrity of the product.

[0023] As a supplement to this technical solution, the main channel 17 is a herringbone-shaped flow channel with a forked tail. By setting the herringbone-shaped flow channel with a forked tail, the inflow speed of aluminum liquid is increased and the filling efficiency is improved.

[0024] As a supplement to this technical solution, a front core-pulling structure 9 is installed at the front part between the upper mold frame 1 and the lower mold frame 2, a right core-pulling structure 10 is installed at the right part between the upper mold frame 1 and the lower mold frame 2, and a rear core-pulling structure 11 is installed at the rear part between the upper mold frame 1 and the lower mold frame 2. By setting the front core-pulling structure 9, the right core-pulling structure 10 and the rear core-pulling structure 11, the product can be made complete.

[0025] As a supplement to this technical solution, the front core-pulling structure 9 includes a front core-pulling bracket 26, a front core-pulling cylinder 27, a front core-pulling slider 28, and a front core-pulling component 29. The front core-pulling bracket 26 is installed on the front side of the lower mold frame 2. The front core-pulling slider 28 is slidably installed on the front part of the lower mold frame 2. The front core-pulling cylinder 27, which is connected to the main shaft and the front core-pulling slider 28, is installed on the front core-pulling bracket 26. The front core-pulling component 29, which is inserted into the mold cavity structure 14, is installed at the rear end of the front core-pulling slider 28. The mating plate forming cavity 36 is located on both sides of the rear end of the front core-pulling slider 28. The diverter cone base 16 is embedded in the upper end face of the front core-pulling slider 28.

[0026] As a supplement to this technical solution, the right core-pulling structure 10 includes a right core-pulling bracket 30, a right core-pulling cylinder 31, and a right core-pulling slider 32. The right core-pulling bracket 30 is installed on the right side of the lower mold frame 2. The right core-pulling cylinder 31 with its main shaft facing left is installed on the right core-pulling bracket 30. The right core-pulling slider 32 is installed on the right side of the lower mold frame 2 and is connected to the main shaft of the right core-pulling cylinder 31. The right slag bag 20 is located on the upper left side of the right core-pulling slider 32.

[0027] As a supplement to this technical solution, the rear core-pulling structure 11 includes a rear core-pulling bracket 33, a rear core-pulling cylinder 34, and a rear core-pulling block 35. The rear core-pulling bracket 33 is installed on the rear side of the lower mold frame 2. The rear core-pulling cylinder 34 with its main shaft facing forward is installed on the rear core-pulling bracket 33. The rear core-pulling block 35 is installed at the rear of the lower mold frame 2. The main shaft of the rear core-pulling block 35 is connected to the main shaft of the rear core-pulling cylinder 34. Several rear slag bags 21 are provided on the upper front side of the rear core-pulling block 35.

[0028] As a supplement to this technical solution, the vacuum exhaust block 12 includes an exhaust block structure 24, a connecting shallow groove 22, a guide channel 23, and a vacuum pump connecting pipe 25. The exhaust block structure 24 consists of two blocks stacked one on top of the other, connected by a mountain-shaped exhaust structure. The right end of the exhaust block structure 24 has a connecting shallow groove 22 that connects to the central flow channel. The vacuum pump connecting pipe 25 is installed on the left side of the lower exhaust block structure 24. The upper left side of the lower exhaust block structure 24 has a guide channel 23 that connects to the vacuum pump connecting pipe 25. The vacuum pump connecting pipe 25 facilitates the connection of the vacuum pump body.

[0029] As a supplement to this technical solution, an ejector plate 6 that moves up and down is installed inside the mold foot 3, and a plurality of ejector structures 7 that are inserted into the mold cavity structure 14 are installed on the ejector plate 6.

[0030] Example

[0031] After the mold is filled, the molten aluminum enters the sprue sleeve 8 through the die-casting machine. Then, the molten aluminum flows along the sprue sleeve 8 into the sprue structure 15. After completion, the vacuum structure is activated, and the vacuum venting block 12 sucks out the air in the mold cavity structure 14. Under pressure, the molten aluminum can enter the front of the mold cavity structure 14 along the main flow channel 17 and the side flow channel 18. The air in the mold cavity structure 14 is discharged from the left, right and rear sides of the mold cavity structure. The molten aluminum flows smoothly to these three positions, gradually filling the entire mold cavity structure 14. The whole process is very smooth and there is no problem of molten aluminum flowing around, ensuring the overall quality of the product.

Claims

1. A die-casting mold for aluminum shells, comprising an upper mold frame (1), a lower mold frame (2), and mold feet (3), wherein the upper mold frame (1) and the lower mold frame (2) are arranged in a stacked manner, an upper mold core (4) and a lower mold core (5) are installed between the upper mold frame (1) and the lower mold frame (2), forming a mold cavity structure (14) between the upper mold core (4) and the lower mold core (5), and mold feet (3) are installed on the lower end face of the lower mold frame (2), characterized in that: The left and right ends of the mold cavity structure (14) extend forward to form a mating plate forming cavity (36). A sprue sleeve (8) is installed at the front of the upper mold frame (1). A runner cone cover plate (13) and a runner cone base (16) are installed at the lower end of the sprue sleeve (8). The runner cone cover plate (13) and the runner cone base (16) are stacked on top of each other, forming a sprue structure (15) that mates with the sprue sleeve (8). Two main runners (17) extending to the front end of the mold cavity structure (14) are symmetrically arranged on the rear side of the sprue structure (15). A flow channel (18) connected to the forming cavity (36) of the mating plate is provided on one side of the mold cavity structure (14). Several left slag bags (19) are provided on the left side of the mold cavity structure (14). Several right slag bags (20) are provided on the right side of the mold cavity structure (14). Several rear slag bags (21) are provided on the rear side of the mold cavity structure (14). A vacuum exhaust block (12) is installed between the left rear part of the upper mold frame (1) and the lower mold frame (2). The left slag bags (19), right slag bags (20) and rear slag bags (21) are connected to the vacuum exhaust block (12) through a centralized flow channel.

2. The die-casting mold for aluminum shells according to claim 1, characterized in that: The main channel (17) is a herringbone-shaped channel with a forked tail.

3. The die-casting mold for aluminum shells according to claim 1, characterized in that: A front core-pulling structure (9) is installed at the front part between the upper mold frame (1) and the lower mold frame (2), a right core-pulling structure (10) is installed at the right part between the upper mold frame (1) and the lower mold frame (2), and a rear core-pulling structure (11) is installed at the rear part between the upper mold frame (1) and the lower mold frame (2).

4. A die-casting mold for aluminum shells according to claim 3, characterized in that: The front core-pulling structure (9) includes a front core-pulling bracket (26), a front core-pulling cylinder (27), a front core-pulling slider (28), and a front core-pulling (29). The front core-pulling bracket (26) is installed on the front side of the lower mold frame (2). The front core-pulling slider (28) is slidably installed on the front part of the lower mold frame (2). The front core-pulling bracket (26) is equipped with a front core-pulling cylinder (27) that connects with the front core-pulling slider (28). The front core-pulling (29) of the insertion mold cavity structure (14) is installed at the rear end of the front core-pulling slider (28). The mating plate forming cavity (36) is located on both sides of the rear end of the front core-pulling slider (28). The diversion cone base (16) is embedded in the upper end face of the front core-pulling slider (28).

5. A die-casting mold for aluminum shells according to claim 3, characterized in that: The right core-pulling structure (10) includes a right core-pulling bracket (30), a right core-pulling cylinder (31), and a right core-pulling slider (32). The right core-pulling bracket (30) is installed on the right side of the lower mold frame (2). The right core-pulling cylinder (31) with its main shaft facing left is installed on the right core-pulling bracket (30). The right core-pulling slider (32) is installed on the right side of the lower mold frame (2) and connected to the main shaft of the right core-pulling cylinder (31). The right slag bag (20) is located on the upper left side of the right core-pulling slider (32).

6. A die-casting mold for aluminum shells according to claim 3, characterized in that: The rear core-pulling structure (11) includes a rear core-pulling bracket (33), a rear core-pulling cylinder (34), and a rear core-pulling block (35). The rear core-pulling bracket (33) is installed on the rear side of the lower mold frame (2). The rear core-pulling cylinder (34) with its main shaft facing forward is installed on the rear core-pulling bracket (33). The rear core-pulling block (35) is installed at the rear of the lower mold frame (2). The main shafts of the rear core-pulling block (35) and the rear core-pulling cylinder (34) are connected. Several rear slag bags (21) are provided on the upper front side of the rear core-pulling block (35).

7. A die-casting mold for aluminum shells according to claim 1, characterized in that: The vacuum exhaust block (12) includes an exhaust block structure (24), a connecting shallow groove (22), a guide channel (23), and a vacuum pump connecting pipe (25). The exhaust block structure (24) consists of two blocks stacked one on top of the other, connected by a mountain-shaped exhaust structure. The right end of the exhaust block structure (24) is provided with a connecting shallow groove (22) that connects to the central flow channel. The lower exhaust block structure (24) is equipped with a vacuum pump connecting pipe (25) on its left side. The upper left side of the lower exhaust block structure (24) is provided with a guide channel (23) that connects to the vacuum pump connecting pipe (25).

8. A die-casting mold for aluminum shells according to claim 1, characterized in that: The mold foot (3) is equipped with an ejector plate (6) that moves up and down, and the ejector plate (6) is equipped with a number of ejector structures (7) that are inserted into the mold cavity structure (14).

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