CN-224209098-U - Integral pressing chamber suitable for vacuum die casting

CN224209098UCN 224209098 UCN224209098 UCN 224209098UCN-224209098-U

Abstract

The utility model provides an integral pressing chamber suitable for vacuum die casting, which comprises a pressing chamber main body, a shooting rod and a cooling sleeve, wherein the shooting rod is arranged in an inner cavity of the pressing chamber main body, the pressing chamber main body comprises a feeding end and a discharging end which are oppositely arranged, the shooting rod is slidably arranged at the feeding end, the pressing chamber main body is provided with a pouring hole, the cooling sleeve is fixedly arranged on the outer peripheral surface of the discharging end of the pressing chamber main body, the cooling sleeve is arranged on the periphery of the discharging end of the pressing chamber main body, the cooling sleeve is provided with an annular channel, the annular channel is communicated with an external cooling medium or a heating medium through a three-way valve, the temperature sensor is used for detecting the temperature of the injected aluminum liquid after the aluminum liquid is injected into the inner cavity of the pressing chamber main body, and the three-way valve is controlled to perform corresponding action according to the detection result, so that the external cooling medium or the heating medium is introduced into the annular channel, and the aluminum liquid flowing into a die from the discharging end of the pressing chamber main body is subjected to corresponding heat exchange, and the temperature of the aluminum liquid entering the die can be adjusted.

Inventors

LI SIDI
GUO XIAOQUN
ZHANG JIAYU
ZENG JIANQUAN
Liang Canyuan
WU JIAYU

Assignees

广东齐一科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250730

Claims (6)

1. The utility model provides a whole pressure chamber suitable for vacuum die casting, its characterized in that, includes pressure chamber main part, penetrating pole, penetrating head and cooling jacket, the penetrating pole is installed in the inner chamber of pressure chamber main part, pressure chamber main part is including relative feed end and the discharge end that sets up, penetrating pole slidable mounting is in the feed end, the pouring spout has been seted up to pressure chamber main part, cooling jacket fixed mounting is in the outer peripheral face of the discharge end of pressure chamber main part, be provided with annular passage on the cooling jacket along its circumferencial direction, the cooling jacket surface is provided with the liquid filling opening, the liquid filling opening with annular passage is linked together, the liquid filling opening is linked together with the export of three-way valve, two inlets of three-way valve are linked together with outside thermal medium and cooling medium respectively, install temperature sensor in the inner chamber of pressure chamber main part, temperature sensor with the three-way valve communication links to each other.
2. The integral pressure chamber suitable for vacuum die casting according to claim 1, wherein the pressure chamber main body is further provided with a vacuum hole, the vacuum hole is communicated with the inner cavity of the pressure chamber main body, a vacuum valve is arranged on the vacuum hole, and the vacuum valve is connected with an external vacuum machine.
3. The integral pressing chamber suitable for vacuum die casting according to claim 1, wherein an insert made of die steel is inlaid at the pouring opening.
4. The integral pressure chamber suitable for vacuum die casting of claim 1, wherein an annular groove is formed at the tail end of the injection head.
5. An integral pressure chamber suitable for vacuum die casting as defined in claim 1 wherein said injection rod is centrally formed with a blind bore disposed axially therealong.
6. The integral pressure chamber suitable for vacuum die casting of claim 4 wherein said outer surface of said nozzle is coated with an oxidation resistant ceramic coating.

Description

Integral pressing chamber suitable for vacuum die casting Technical Field The utility model relates to the technical field of product die casting, in particular to an integral pressing chamber suitable for vacuum die casting. Background Vacuum die casting is an advanced casting process that significantly reduces or eliminates air holes in castings by actively pumping out the gas in the mold cavity and plenum during high pressure casting. Vacuum die casting is an important improvement and development direction of traditional high-pressure die casting, and is mainly used for producing castings such as high-quality aluminum alloy, magnesium alloy and the like which are required to be high in strength and air tightness and capable of being subjected to heat treatment or welding. In the prior art, the temperature of the molten aluminum entering the die for casting is important, the die is seriously eroded due to the fact that the temperature is too high, and the cold insulation defect of a product is caused due to the fact that the temperature is relatively low, so that the method is particularly important for providing a technical means capable of controlling the temperature of the molten aluminum entering the die. Disclosure of utility model Aiming at the defects in the prior art, the utility model aims to provide an integral pressing chamber which can stably adjust the aluminum liquid entering a die and is suitable for vacuum die casting. In order to achieve the above purpose, the following technical scheme is adopted: The application provides an integral pressing chamber suitable for vacuum die casting, which comprises a pressing chamber main body, a shooting rod, a shooting head and a cooling sleeve, wherein the shooting rod is arranged in an inner cavity of the pressing chamber main body, the pressing chamber main body comprises a feeding end and a discharging end which are oppositely arranged, the shooting rod is slidably arranged at the feeding end, the pressing chamber main body is provided with a pouring opening, the cooling sleeve is fixedly arranged on the peripheral surface of the discharging end of the pressing chamber main body, an annular channel is arranged on the cooling sleeve along the circumferential direction of the cooling sleeve, a liquid adding opening is arranged on the outer surface of the cooling sleeve and is communicated with the annular channel, the liquid adding opening is communicated with an outlet of a three-way valve, two inlets of the three-way valve are respectively communicated with external heat medium and cooling medium, a temperature sensor is arranged in the inner cavity of the pressing chamber main body, and the temperature sensor is in communication connection with the three-way valve. Further, the pressing chamber main body is further provided with a vacuum hole, the vacuum hole is communicated with the inner cavity of the pressing chamber main body, a vacuum valve is installed on the vacuum hole, and the vacuum valve is connected with an external vacuum machine. Further, the pouring opening is inlaid with an insert made of die steel materials. Further, an annular groove is formed in the tail end of the injection head. Further, a blind hole which is axially arranged along the injection rod is formed in the center of the injection rod. Further, the outer surface of the injection head is coated with an antioxidant ceramic coating. Compared with the prior art, the integral pressure chamber has the beneficial technical effects that the cooling sleeve is arranged at the periphery of the discharge end of the pressure chamber main body, the cooling sleeve is provided with the annular channel, the annular channel is communicated with an external cooling medium or a heating medium through the three-way valve, the temperature sensor is used for detecting the temperature of the injected aluminum liquid after the aluminum liquid is injected into the inner cavity of the pressure chamber main body, the three-way valve is controlled to perform corresponding actions according to the detection result, the external cooling medium or the heating medium is introduced into the annular channel, and the cooling sleeve performs corresponding heat exchange with the aluminum liquid flowing out from the discharge end of the pressure chamber main body and entering the die, so that the temperature of the aluminum liquid entering the die can be adjusted. Drawings Fig. 1 is a schematic perspective view of an overall plenum in an embodiment of the application. Fig. 2 is a schematic perspective view of an ejector pin according to an embodiment of the present application. Fig. 3 is a schematic top view of a shooting rod according to an embodiment of the present application. FIG. 4 is a schematic view of the cross-sectional structure of the A-A direction in FIG. 3. Fig. 5 is a schematic perspective view of a cooling jacket according to an embodiment of the present application. Fig. 6 is a schematic di