High efficiency die casting mold

Abstract

The utility model discloses a kind of high-efficiency die casting mould, it is characterized by: including the die and the movable die of relative arrangement, the movable die and the product cavity between die have, the die is provided with melting cup, sprue bushing, the sprue bushing is located the front end of the melting cup, the melting cup rear upper portion has upside-down material port, punch is cooperatively arranged in the injection chamber of the melting cup, vertically movable injection plugging block is arranged in the lower portion of the die, the injection plugging block is closely attached with the front end surface of the sprue bushing, the sprue bushing and the injection plugging block between there is the straight gate and the cross gate of the intercommunication product cavity.The beneficial effects of the utility model include: mould structure is simple, can be injected, can be injected in the spraying blowing process of mould simultaneously, need not wait for the completion of combination, can save production cycle period, with great economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of die casting molds, and specifically to a high-efficiency die casting mold. Background Technology

[0002] Die casting is a precision casting method that uses high pressure to force molten metal into a complex-shaped metal mold. Traditional die casting mainly consists of four steps, also known as high-pressure die casting. These four steps include mold preparation, filling, injection, and sand removal, which form the basis of various modified die casting processes. During preparation, lubricant is sprayed into the mold cavity. Besides helping to control the mold temperature, the lubricant also facilitates demolding. Then the mold is closed, and molten metal is injected into it under high pressure, ranging from approximately 10 to 175 MPa. Once the molten metal has filled the mold, the pressure is maintained until the casting solidifies.

[0003] Traditional structures require the die-casting moving and fixed mold plates to be locked in place, meaning the die-casting mold is in a fully closed state, before molten aluminum can be injected from the injection port for the injection filling action. This results in the entire production cycle being in a waiting state, with repeated cycles leading to wasted time and costs. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention provides a high-efficiency die-casting mold that can accelerate the die-casting cycle and improve die-casting efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency die-casting mold, characterized in that: it includes a fixed mold and a moving mold arranged opposite to each other, with a product cavity between the moving mold and the fixed mold; the fixed mold is provided with a molten cup and a sprue sleeve, the sprue sleeve being located at the front end of the molten cup; a pouring port is provided above the rear of the molten cup; a punch is fitted inside the injection chamber of the molten cup; a vertically movable injection sealing block is provided below the fixed mold, the injection sealing block being tightly fitted with the front end face of the sprue sleeve; and a sprue and a runner communicating with the product cavity are provided between the sprue sleeve and the injection sealing block.

[0007] Furthermore, the lower end of the sprue sleeve has a stepped water-sealing surface that cooperates with the injection sealing block.

[0008] Furthermore, the lower end of the injection sealing block is connected to a lifting drive device, which includes a slide, a cylinder bracket, and a cylinder. A guide slider is provided on the fixed mold, and the slide is slidably disposed on the guide slider. The fixed mold has a guide groove for limiting the slide. The cylinder is disposed at the lower end of the fixed mold through the cylinder bracket, and the front end of the piston rod of the cylinder is connected to the slide through a connecting sleeve.

[0009] Furthermore, a position sensing rod is connected to the lower end of the slide block, and two limit switches are provided on the cylinder. The position sensing rod has a contact block that triggers the two limit switches.

[0010] The advantages of this utility model include: the mold structure is simple, the material can be injected in advance, and the material can be injected simultaneously during the spraying and blowing process of the mold, without waiting for the mold to be closed, which can save the production cycle and has great economic benefits. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the present invention;

[0013] Figure 3 This is a schematic diagram of the position sensing device of this utility model. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0015] One such Figure 1-3 The high-efficiency die-casting mold shown is characterized by comprising a fixed mold 1 and a moving mold 2 arranged opposite to each other, with a product cavity 3 between the moving mold 2 and the fixed mold 1. The fixed mold 1 is equipped with a molten cup 4 for injection and a sprue sleeve 5, with the sprue sleeve 5 located at the front end of the molten cup 4. A discharge port 41 is located above the rear of the molten cup 4, and a punch is fitted inside the injection chamber of the molten cup 4 to expel molten metal into the product cavity 3. A vertically movable injection sealing block 6 is located below the fixed mold 1, which fits tightly against the front end face of the sprue sleeve 5. A sprue 7 and a runner 8 connecting the sprue sleeve 5 and the injection sealing block 6 communicate with the product cavity 3, allowing for simultaneous injection during the mold spraying and blowing process without waiting for mold closing, thus saving production cycle time and resulting in significant economic benefits.

[0016] like Figure 2 As shown, the lower end of the sprue sleeve 5 has a stepped water-sealing surface that mates with the injection sealing block 6, which is used to ensure that the molten metal injected into the mold in advance does not leak.

[0017] The lower end of the injection sealing block 6 is connected to a lifting drive device. When the mold is open, during the spraying and blowing process on the mold, the injection sealing block 6 rises to seal the front end of the sprue sleeve 5 in advance, thereby allowing the material to be injected into the melting cup 4 in advance and reducing waiting time. After the die casting is completed, the injection sealing block 6 descends and the mold is opened again, allowing the sprue 7 and the runner 8 to automatically demold.

[0018] The lifting drive device includes a slide block 9, a cylinder bracket 10, and a cylinder 11. A guide slider 13 is provided on the fixed mold 1, and the slide block 9 is slidably mounted on the guide slider 13. The fixed mold 1 has a guide groove for limiting the slide block 9. The cylinder 11 is mounted on the lower end of the fixed mold 1 through the cylinder bracket 10, and the front end of the piston rod of the cylinder 11 is connected to the slide block 9 through a connecting sleeve 12.

[0019] In order to adapt to the mold host to automatically sense the position of the injection sealing block 6, the lower end of the slide 9 in this embodiment is connected to a position sensing rod 14, and two limit switches 15 are provided on the oil cylinder 11. The position sensing rod 14 has a touch block 16 that triggers the two limit switches 15.

[0020] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A high-efficiency die-casting mold, characterized in that: The mold includes a fixed mold (1) and a moving mold (2) arranged opposite to each other. There is a product cavity (3) between the moving mold (2) and the fixed mold (1). The fixed mold (1) is provided with a melting cup (4) and a sprue sleeve (5). The sprue sleeve (5) is located at the front end of the melting cup (4). There is a pouring port (41) above the rear part of the melting cup (4). A punch is provided in the injection chamber of the melting cup (4). A vertically movable injection sealing block (6) is provided below the fixed mold (1). The injection sealing block (6) is in close contact with the front end face of the sprue sleeve (5). There is a sprue (7) and a gating system (8) connecting the product cavity (3) between the sprue sleeve (5) and the injection sealing block (6).

2. The high-efficiency die-casting mold according to claim 1, characterized in that: The lower end of the sprue sleeve (5) has a stepped water-sealing surface that cooperates with the injection sealing block (6).

3. The high-efficiency die-casting mold according to claim 1, characterized in that: The lower end of the injection sealing block (6) is connected to a lifting drive device, which includes a slide (9), a cylinder bracket (10), and a cylinder (11). A guide slider (13) is provided on the fixed mold (1). The slide (9) is slidably disposed on the guide slider (13). The fixed mold (1) has a guide groove that limits the slide (9). The cylinder (11) is disposed at the lower end of the fixed mold (1) through the cylinder bracket (10). The front end of the piston rod of the cylinder (11) is connected to the slide (9) through a connecting sleeve (12).

4. The high-efficiency die-casting mold according to claim 3, characterized in that: The lower end of the slide (9) is connected to a position sensing rod (14), and the cylinder (11) is provided with two limit switches (15). The position sensing rod (14) has a contact block (16) that triggers the two limit switches (15).

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