Vacuum valve cooling structure

Abstract

The utility model discloses a vacuum valve cooling structure which is characterized by comprising an oil cylinder, a vacuum support assembly, a valve rod and a cooling water base plate, the oil cylinder is arranged on the vacuum support assembly, the valve rod is connected to a piston rod of the oil cylinder, and the lower end of the valve rod penetrates through the vacuum support assembly and the cooling water base plate. The cooling water base plate is arranged below the vacuum support assembly, a cooling water channel is arranged in the cooling water base plate, and the end of one side of the cooling water base plate is connected with a water inlet pipe and a water outlet pipe. The mold temperature balancing system has the beneficial effects that the structure is used in a large mold, and the mold temperature balancing system of a vacuumizing structure has the advantages that: 1, the structure is simple, and the maintenance is convenient; disassembly and assembly are faster and more convenient, and the working efficiency is improved. Mold temperature balance is increased, and the internal quality of a product is improved. And 4, standard parts can be made for popularization and use.

Description

Technical Field

[0001] The utility model relates to the field of die-casting molds, and particularly relates to a cooling structure for a vacuum valve. Background Art

[0002] With the development of die-casting equipment and technology, the performance requirements for die-cast parts are getting higher and higher. Therefore, in the die-casting production process, there are also higher requirements for the sealing performance of die-cast parts. Thus, in the field of die-casting machine molds, a high-vacuum structure mold with an internal vacuum valve is adopted, which can improve the air extraction efficiency and vacuum degree in the die-casting production process, and improve the quality of die-cast parts.

[0003] As the molds are getting larger, the balanced control of mold temperature becomes more important. In large molds, it is necessary to set the mold temperature balance for the vacuum pumping system. In the prior art, there is a lack of cooling for the vacuum valve drive structure part, which easily causes damage to components due to the high temperature at the vacuum valve part. Summary of the Invention

[0004] In view of the above deficiencies in the prior art, the utility model provides a cooling structure for a vacuum valve, which has a simple structure, is convenient for maintenance, and can effectively balance the mold temperature.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cooling structure for a vacuum valve, characterized in that it includes an oil cylinder, a vacuum support assembly, a valve rod, and a cooling water backing plate. The oil cylinder is arranged on the vacuum support assembly, the valve rod is connected to the piston rod of the oil cylinder, and its lower end passes through the vacuum support assembly and the cooling water backing plate. The cooling water backing plate is arranged below the vacuum support assembly. The cooling water backing plate has a cooling water channel inside, and one end of the cooling water backing plate is connected with a water inlet pipe and a water outlet pipe.

[0007] Further, a heightening pad is arranged on the vacuum support assembly, an oil cylinder mounting seat is arranged on the heightening pad, and the oil cylinder is connected to the oil cylinder mounting seat.

[0008] Further, the heightening pad has an inner cavity, the valve rod is connected to the piston rod of the oil cylinder through a connecting block, and the connecting block is located in the inner cavity of the heightening pad.

[0009] Further, the vacuum support assembly includes a mounting plate, a pressing block, a connecting bracket, a travel switch, and a contact block. One end of the mounting plate is connected to the connecting bracket. The mounting block has sunk platforms on both the left and right sides. The pressing block is connected to the cooling water backing plate and presses the sunk platforms on the mounting block. The travel switch is arranged on the mounting plate, the contact block is arranged on the connecting block, and the contact block has a wedge-shaped trigger surface corresponding to the travel switch.

[0010] The beneficial effects of the present utility model include: This structure is used in large molds, and it is a mold temperature balancing system with a vacuum pumping structure. The advantages of this structure are as follows: 1. The structure is simple and convenient for maintenance. 2. Disassembly and assembly are faster and more convenient, improving work efficiency. 3. It increases the mold temperature balance and improves the internal quality of the product. 4. It can be made into standard parts for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural view of the present utility model;

[0012] Figure 2 is a cross-sectional view of the present utility model. SPECIFIC EMBODIMENTS

[0013] The present utility model will be further described in detail below in conjunction with specific embodiments and the accompanying drawings.

[0014] A vacuum valve cooling structure as Figure 1-2 shown, includes an oil cylinder 1, a vacuum support assembly, a valve rod 3, and a cooling water backing plate 4. The oil cylinder 1 is arranged on the vacuum support assembly and is fixedly installed on the die-casting mold through the vacuum support assembly. The valve rod 3 is connected to the piston rod of the oil cylinder 1, and its lower end passes through the vacuum support assembly and the cooling water backing plate 4 and extends into the mold core to cooperate with the valve core to realize the opening and closing of the vacuum channel. The cooling water backing plate 4 is arranged below the vacuum support assembly. The cooling water backing plate 4 has a cooling water channel inside, and one end of the cooling water backing plate 4 is connected with a water inlet pipe 2 and a water outlet pipe 5. The mold temperature of the vacuum valve part is balanced by circulating cooling water, avoiding local overheating and preventing high temperature from damaging the driving components and sensing components.

[0015] As Figure 1 shown, a heightening pad 6 is arranged on the vacuum support assembly, and an oil cylinder mounting seat 7 is arranged on the heightening pad 6. The oil cylinder 1 is connected to the oil cylinder mounting seat 7. The heightening pad 6 has an inner cavity. The valve rod 3 is connected to the piston rod of the oil cylinder 1 through a connecting block 8. The connecting block 8 is located in the inner cavity of the heightening pad 6 and can move vertically with the telescopic movement of the oil cylinder 1. The vacuum support assembly includes a mounting plate 9, a pressing block 10, a connecting bracket 11, a travel switch 12, and a contact block 13. One end of the mounting plate 9 is connected to the connecting bracket 11 and is used for installation and connection to the mold frame of the die-casting mold. The mounting block 9 has sunk platforms on its left and right sides. The pressing block 10 presses the sunk platforms on the mounting block 9 and is connected to the cooling water backing plate 4. The travel switch 12 is arranged on the mounting plate 9, and the contact block 13 is arranged on the connecting block 8. The contact block 13 has a wedge-shaped triggering surface corresponding to the travel switch 12. The travel switch 12 is used to feedback the position of the oil cylinder 1, thereby feedbacking the opening and closing state of the vacuum valve.

[0016] The above has introduced the technical solutions provided by the embodiments of the present utility model in detail. Specific examples are used herein to elaborate on the principles and implementation manners of the embodiments of the present utility model. The description of the above embodiments is only applicable to helping understand the principles of the embodiments of the present utility model; at the same time, for those of ordinary skill in the art, according to the embodiments of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A vacuum valve cooling structure, characterized in that: The invention comprises an oil cylinder (1), a vacuum support assembly, a valve stem (3), and a cooling water pad (4), wherein the oil cylinder (1) is arranged on the vacuum support assembly, the valve stem (3) is connected to the piston rod of the oil cylinder (1), and its lower end passes through the vacuum support assembly and the cooling water pad (4), the cooling water pad (4) is arranged below the vacuum support assembly, a cooling water channel is provided in the cooling water pad (4), and one end of the cooling water pad (4) is connected to a water inlet pipe (2) and a water outlet pipe (5).

2. A vacuum valve cooling structure according to claim 1, characterized in that: A heightening pad (6) is provided on the vacuum support assembly, a cylinder mounting seat (7) is provided on the heightening pad (6), and the cylinder (1) is connected to the cylinder mounting seat (7).

3. The vacuum valve cooling structure according to claim 2, characterized in that: The heightening pad (6) has an inner cavity, and the valve stem (3) is connected to the piston rod of the oil cylinder (1) via a connecting block (8), and the connecting block (8) is located in the inner cavity of the heightening pad (6).

4. The vacuum valve cooling structure according to claim 3, characterized in that: The vacuum support assembly comprises a mounting plate (9), a pressing block (10), a connecting bracket (11), a travel switch (12), and a contact block (13). One end of the mounting plate (9) is connected to the connecting bracket (11). The mounting plate (9) has sinks on both sides. The pressing block (10) is connected to the cooling water pad (4) and presses the sink on the mounting plate (9). The travel switch (12) is arranged on the mounting plate (9). The contact block (13) is arranged on the connecting block (8). The contact block (13) has a wedge-shaped triggering surface corresponding to the travel switch (12).

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