Aluminum alloy die casting forming system

Abstract

The invention relates to the technical field of aluminum alloy die casting, in particular to an aluminum alloy die casting forming system which comprises a die casting frame, a fixed die and a movable die, the fixed die is fixed to the lower portion in the die casting frame, and the movable die is arranged above the fixed die; a cavity is formed in the middle of the upper end of the fixed mold, an ejector plate is arranged in the cavity, a push plate is arranged below the fixed mold, and an ejector demolding assembly is arranged on the push plate; a lifting plate is fixed to the upper end of the movable die and slidably connected with the die-casting frame in a sleeved mode, a die-casting block is fixed to the middle of the lower end of the movable die, lubricating nozzles are arranged on the periphery of the die-casting block, a liquid storage box is fixed to the middle of the upper end of the movable die, and elastic buffering assemblies and liquid conveying assemblies are arranged on the periphery of the die-casting block. According to the automatic demolding device, the ejector plate does not need to be manually operated for demolding work, so that demolding work is more automatic and convenient, and demolding smoothness and demolding quality are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy die casting, in particular to an aluminum alloy die casting forming system. Background Art

[0002] Aluminum die casting is a kind of pressure casting part. It uses a pressure casting mechanical die casting machine equipped with a casting mold to pour heated liquid aluminum or aluminum alloy into the mold cavity. The die casting machine is die-cast to cast aluminum parts or aluminum alloy parts of the shape and size limited by the mold. Such parts are usually called aluminum die casting. The die casting mold is a tool for casting metal parts, a tool that completes the die casting process on a special die casting forging machine.

[0003] For example, an easy-to-demold aluminum die-casting mold disclosed in Chinese patent authorization announcement number CN220760979U belongs to the field of mold technology. An easy-to-demold aluminum die-casting mold includes: a base, a support plate, a hydraulic cylinder, an upper mold and a lower mold; the lower mold is fixedly arranged on the base; the support plate is fixedly arranged above the base; the hydraulic cylinder is fixedly connected to the support plate; the upper mold is fixedly connected to the piston of the hydraulic cylinder; a push block abuts against the lower mold; a guide column is fixedly connected to the push block; a screw is threadedly connected to the base; a guide block is fixedly connected to the screw; wherein the lower mold is provided with a first slide groove extending along the height direction of the lower mold; the guide column moves along the first slide groove; the guide column is provided with a guide groove; and the guide block rotates in the guide groove. The beneficial effect of this application is to provide an easy-to-demold aluminum die-casting mold.

[0004] With reference to the above comparative documents, it can be seen that in the prior art, although the aluminum alloy die-casting in the cavity can be ejected from the mold by pushing the push block upward, the up and down movement of the push block requires manual operation for demolding, so that the demolding operation is not automatic and convenient enough, and the die-casting is easily adhered to the inner wall of the cavity, so the friction force during demolding is relatively large, which not only makes the demolding not smooth enough, but also easily causes damage to the die-casting during the demolding process. Summary of the invention

[0005] The present invention provides an aluminum alloy die-casting molding system, which is conducive to more automatic and convenient demoulding operations and helps to ensure smooth demoulding.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An aluminum alloy die-casting molding system comprises a die-casting frame, a fixed die and a movable die, wherein the fixed die is fixed to the lower part of the die-casting frame, and the movable die is arranged above the fixed die;

[0008] A cavity is formed in the middle of the upper end of the fixed mold, a material ejection plate is arranged in the cavity, a push plate is arranged under the fixed mold, and a material ejection demoulding component is arranged on the push plate;

[0009] A lifting plate is fixed to the upper end of the moving die. The lifting plate is slidably sleeved with the die-casting frame. A die-casting block is fixed to the middle of the lower end of the moving die. Lubricating nozzles are arranged around the periphery of the die-casting block. A liquid storage tank is fixed to the middle of the upper end of the moving die. Elastic buffer components and liquid infusion components are arranged around the periphery of the die-casting block.

[0010] Further, a hydraulic cylinder is fixed to the inner top of the die-casting frame, and the power end of the hydraulic cylinder is connected to the upper end of the liquid storage tank.

[0011] Further, the ejector and demolding assembly includes ejector rods, return springs and two T-shaped rods. There are two ejector rods, which are both fixed between the ejector plate and the push plate, and the ejector rods slide through the fixed die. A number of return springs are provided, and the return springs are all connected between the push plate and the fixed die.

[0012] Further, there are two T-shaped rods, which are arranged left and right and are both fixed to the upper end of the push plate, and the T-shaped rods both slide through the fixed die and the lifting plate.

[0013] Further, each of the elastic buffer components includes a spring buffer rod and a buffer plate. Shrinkage grooves are formed around the lower end of the moving die, and the spring buffer rods are respectively fixed in the shrinkage grooves, and the buffer plates are respectively connected to the lower ends of the spring buffer rods.

[0014] Further, each of the liquid infusion components includes a liquid infusion valve, a liquid infusion pipe and a telescopic pipe. The liquid infusion valves are all communicated with the liquid storage tank. One end of the liquid infusion pipe is communicated with the liquid outlet of the liquid infusion valve, and the liquid infusion pipes all penetrate through the lifting plate and the moving die and enter the adjacent shrinkage grooves. The telescopic pipes are all communicated with the lower ends of the liquid infusion pipes, and the lower ends of the telescopic pipes are connected to the upper ends of the buffer plates.

[0015] Further, the lubricating nozzles are all communicated with the adjacent telescopic pipes, and the lubricating nozzles are all inclined towards the cavity.

[0016] The beneficial effects of the present invention:

[0017] 1. By arranging an ejector plate in the cavity, during the demolding process, the upward movement of the lifting plate and the moving die will automatically drive the ejector plate to move upward, which is beneficial to push the die-casting part in the cavity upward through the automatic upward movement of the ejector plate for demolding work. Moreover, the return elastic force of the return spring will drive the ejector plate to automatically move downward and reset, so that there is no need to manually operate the ejector plate for demolding work, making the demolding work more automatic and convenient;

[0018] 2. By setting four lubricating nozzles, the lubricating nozzles are conducive to evenly and comprehensively spraying the release agent on the inner wall of the cavity. The function of the release agent is to enable the cured die-casting to be smoothly separated from the cavity of the fixed mold, which is conducive to ensuring the smoothness of demoulding, thereby obtaining a smooth and flat die-casting, effectively preventing the die-casting from adhering to the mold, avoiding problems such as burrs and cracks, and being conducive to ensuring the demoulding quality;

[0019] 3. By setting an elastic buffer assembly, it is conducive to elastically buffering the moving die moving downward, so as to prevent the moving die from being damaged by a large rigid collision, and effectively ensure the service life of the fixed mold and the moving die. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the moving die of the present invention;

[0022] Figure 3 It is a schematic diagram of the bottom view structure of the moving die of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall die-casting working structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the overall demoulding working structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the overall external structure of the present invention.

[0026] Description of the Reference Numerals in the Drawings:

[0027] Die-casting frame 1, fixed mold 2, cavity 3, ejector plate 4, lifting plate 5, moving die 6, liquid storage tank 7, hydraulic cylinder 8, die-casting block 9, storage groove 10, spring buffer rod 11, buffer plate 12, telescopic tube 13, lubricating nozzle 14, infusion valve 15, infusion tube 16, push plate 17, ejector rod 18, return spring 19, T-shaped rod 20. Detailed Embodiment

[0028] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the embodiments and the drawings. The content mentioned in the embodiments does not limit the present invention.

[0029] Such as Figure 1 、 2As shown in FIGS. 5 and 6, in this embodiment, it includes a die-casting frame 1, a fixed mold 2 and a movable mold 6. The fixed mold 2 is fixed at the lower part inside the die-casting frame 1. The movable mold 6 is arranged above the fixed mold 2. A cavity 3 is opened in the middle of the upper end of the fixed mold 2. A knockout plate 4 is arranged inside the cavity 3. A push plate 17 is arranged below the fixed mold 2. The push plate 17 is provided with a knockout and demolding assembly. The knockout and demolding assembly includes a knockout rod 18, a return spring 19 and two T-shaped rods 20. There are two knockout rods 18, both of which are fixed between the knockout plate 4 and the push plate 17, and the knockout rod 18 slides through the fixed mold 2. A number of return springs 19 are provided, and the return springs 19 are all connected between the push plate 17 and the fixed mold 2. There are two T-shaped rods 20, which are distributed left and right and are both fixed at the upper end of the push plate 17, and the T-shaped rods 20 both slide through the fixed mold 2 and the lifting plate 5. A hydraulic cylinder 8 is fixed at the top inside the die-casting frame 1, and the power end of the hydraulic cylinder 8 is connected to the upper end of the liquid storage tank 7.

[0030] By arranging the knockout plate 4 inside the cavity 3, on the premise that the die-casting part is die-cast and formed inside the cavity 3, during the demolding process, the hydraulic cylinder 8 contracts and drives the liquid storage tank 7, the lifting plate 5, the movable mold 6 and the die-casting block 9 to move upward. The lifting plate 5 will pull up the T-shaped rod 20 upward. The T-shaped rod 20 will drive the push plate 17, the knockout rod 18 and the knockout plate 4 to move upward. At the same time, the push plate 17 will compress the return spring 19. Therefore, it is beneficial to push the die-casting part inside the cavity 3 upward through the automatic upward movement of the knockout plate 4 for demolding work. When the demolding is completed, the hydraulic cylinder 8 drives the liquid storage tank 7, the lifting plate 5, the movable mold 6 and the die-casting block 9 to move downward. Since the lifting plate 5 no longer pulls up the T-shaped rod 20, the return elastic force of the return spring 19 will drive the push plate 17, the T-shaped rod 20, the knockout rod 18 and the knockout plate 4 to move downward and reset, so as to facilitate subsequent demolding work. In summary, there is no need to manually operate the knockout plate 4 for demolding work, making the demolding work more automatic and convenient.

[0031] As Figure 1-3 shown, in this embodiment, a lifting plate 5 is fixed at the upper end of the movable mold 6. The lifting plate 5 is slidably sleeved with the die-casting frame 1. A die-casting block 9 is fixed in the middle of the lower end of the movable mold 6. Lubricating nozzles 14 are arranged around the periphery of the die-casting block 9. A liquid storage tank 7 is fixed in the middle of the upper end of the movable mold 6. Elastic buffer components and liquid infusion components are arranged around the periphery of the die-casting block 9. The liquid infusion components each include an infusion valve 15, an infusion pipe 16 and a telescopic pipe 13. The infusion valves 15 are all communicated with the liquid storage tank 7. One end of the infusion pipe 16 is communicated with the liquid outlet of the infusion valve 15, and the infusion pipes 16 all pass through the lifting plate 7 and the movable mold 5 and penetrate into the adjacent contraction grooves 10. The telescopic pipes 13 are all communicated with the lower ends of the infusion pipes 16, and the lower ends of the telescopic pipes 13 are connected to the upper ends of the buffer plates 12. The lubricating nozzles 14 are all communicated with the adjacent telescopic pipes 13, and the lubricating nozzles 14 are all inclined towards the inside of the cavity 3.

[0032] Before the die-casting part is die-cast, in order to prevent the die-casting part from sticking to the cavity 3, on the premise that the liquid storage tank 7 is filled with a water-based release agent, the infusion valve 15 is opened to introduce the water-based release agent in the liquid storage tank 7 into the infusion pipe 16, the telescopic pipe 13 and the lubricating nozzle 14, and then through the four lubricating nozzles 14, the release agent is evenly and comprehensively sprayed onto the inner wall of the cavity 3. The function of the release agent is to enable the solidified die-casting part to be smoothly separated from the cavity 3 of the fixed mold 2, which is beneficial to ensuring the smoothness of demolding, so as to obtain a smooth and flat die-casting part, effectively prevent the die-casting part from sticking to the mold, avoid problems such as burrs and cracks, and is beneficial to ensuring the demolding quality.

[0033] As Figure 2 , 4 shown, in this embodiment, the elastic buffer components all include spring buffer rods 11 and buffer plates 12. Shrinkage grooves 10 are opened around the lower end of the moving mold 6, and the spring buffer rods 11 are fixedly arranged in the shrinkage grooves 10 one by one, and the buffer plates 12 are connected to the lower ends of the spring buffer rods 11 one by one.

[0034] During the process of die-casting the hot-melt aluminum alloy in the cavity 3, the hydraulic cylinder 8 extends to drive the liquid storage tank 7, the lifting plate 5, the moving mold 6 and the die-casting block 9 to move downward. The die-casting block 9 enters the cavity 3 to die-cast the hot-melt aluminum alloy. During this process, the buffer plate 12 will press on the fixed mold 2, and the buffer plate 12 will compress the spring buffer rods 11 and the telescopic pipe 13. Then, combined with the elasticity of the spring buffer rods 11, it is beneficial to elastically buffer the downward moving moving mold 6, so as to prevent the moving mold 6 from being damaged by a large rigid collision, and effectively ensure the service life of the fixed mold 2 and the moving mold 6.

[0035] Working principle: When die-casting and forming aluminum alloy die-castings through this system, the infusion valve 15 is opened to introduce the water-based release agent in the liquid storage tank 7 into the infusion pipe 16, the telescopic pipe 13 and the lubricating nozzle 14. Then, through the four lubricating nozzles 14, the release agent is evenly and comprehensively sprayed onto the inner wall of the cavity 3. Next, the hydraulic cylinder 8 extends to drive the liquid storage tank 7, the lifting plate 5, the moving die 6 and the die-casting block 9 to move downward. The die-casting block 9 enters the cavity 3 to die-cast and form the hot-melt aluminum alloy. During this process, the buffer plate 12 will press on the fixed die 2, and the buffer plate 12 will compress the spring buffer rod 11 and the telescopic pipe 13. When the die-casting is formed in the cavity 3, the hydraulic cylinder 8 contracts and drives the liquid storage tank 7, the lifting plate 5, the moving die 6 and the die-casting block 9 to move upward. The lifting plate 5 will pull up the T-shaped rod 20, and the T-shaped rod 20 will drive the push plate 17, the ejector rod 18 and the ejector plate 4 to move upward. At the same time, the push plate 17 will compress the return spring 19, and the ejector plate 4 automatically moves upward and pushes the die-casting in the cavity 3 for demoulding work. When the demoulding is completed, the hydraulic cylinder 8 drives the liquid storage tank 7, the lifting plate 5, the moving die 6 and the die-casting block 9 to move downward. Since the lifting plate 5 no longer pulls up the T-shaped rod 20, the resilience of the return spring 19 will drive the push plate 17, the T-shaped rod 20, the ejector rod 18 and the ejector plate 4 to move downward and reset for subsequent demoulding work.

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] The above embodiment is a preferred implementation scheme of the present invention. In addition, there are other implementation methods. Any obvious replacement without departing from the concept of the technical solution of the present invention is within the protection scope of the present invention.

Claims

1. An aluminum alloy die-casting forming system, comprising a die-casting frame (1), a fixed die (2) and a moving die (6). The fixed die (2) is fixed at the lower part inside the die-casting frame (1), and the moving die (6) is arranged above the fixed die (2), and is characterized in that: A cavity (3) is formed in the middle of the upper end of the fixed die (2). A ejector plate (4) is arranged in the cavity (3). A push plate (17) is arranged below the fixed die (2), and the push plate (17) is provided with a ejecting and demolding assembly. A lifting plate (5) is fixed at the upper end of the moving die (6). The lifting plate (5) is slidably sleeved with the die-casting frame (1). A die-casting block (9) is fixed in the middle of the lower end of the moving die (6). Lubricating spray nozzles (14) are arranged around the periphery of the die-casting block (9). A liquid storage tank (7) is fixed in the middle of the upper end of the moving die (6). Elastic buffer assemblies and liquid infusion assemblies are arranged around the periphery of the die-casting block (9).

2. The aluminum alloy die-casting forming system according to claim 1, wherein: A hydraulic cylinder (8) is fixed at the top inside the die-casting frame (1), and the power end of the hydraulic cylinder (8) is connected to the upper end of the liquid storage tank (7).

3. A forming system for aluminum alloy die-castings according to claim 1, characterized in that: The ejecting and demolding assembly includes ejector rods (18), return springs (19) and two T-shaped rods (20). There are two ejector rods (18) which are both fixed between the ejector plate (4) and the push plate (17), and the ejector rods (18) slidably penetrate through the fixed die (2). A number of return springs (19) are provided, and the return springs (19) are all connected between the push plate (17) and the fixed die (2).

4. The aluminum alloy die-casting forming system according to claim 3, wherein: There are two T-shaped rods (20) which are distributed left and right and are both fixed at the upper end of the push plate (17), and the T-shaped rods (20) both slidably penetrate through the fixed die (2) and the lifting plate (5).

5. The forming system for an aluminum alloy die-casting part according to claim 1, wherein: The elastic buffer assemblies each include a spring buffer rod (11) and a buffer plate (12). Shrinkage grooves (10) are formed around the lower end of the moving die (6). The spring buffer rods (11) are respectively fixed in the shrinkage grooves (10), and the buffer plates (12) are respectively connected to the lower ends of the spring buffer rods (11).

6. A forming system for aluminum alloy die castings according to claim 5, characterized in that: The liquid infusion assemblies each include an infusion valve (15), an infusion pipe (16) and a telescopic pipe (13). The infusion valves (15) are all communicated with the liquid storage tank (7). One end of the infusion pipe (16) is communicated with the liquid outlet of the infusion valve (15), and the infusion pipes (16) all penetrate through the lifting plate (7) and the moving die (5) and enter the adjacent shrinkage grooves (10). The telescopic pipes (13) are all communicated with the lower ends of the infusion pipes (16), and the lower ends of the telescopic pipes (13) are connected to the upper ends of the buffer plates (12).

7. The aluminum alloy die-casting forming system according to claim 6, characterized in that: The lubricating spray nozzles (14) are all communicated with the adjacent telescopic pipes (13), and the lubricating spray nozzles (14) are all inclined towards the inside of the cavity (3).

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