Vacuum valve air extractor for die-casting die

Abstract

The utility model relates to the technical field of die-casting dies, in particular to a vacuum valve air extractor for a die-casting die, which comprises a main body, and the top of the main body is fixedly connected with a bottom component and an air extracting component; the high-pressure vacuum extractor is used for extracting residual gas in the casting mold cavity, the residual gas in the casting mold cavity can be completely removed, the defect that the residual gas exists in the die casting process is overcome, and therefore the product forming quality is improved, and the high-pressure vacuum extractor has the advantages of being low in cost, simple in structure, convenient to use and the like. The first filter plate and the second filter plate are used for filtering and collecting impurities contained in residual gas in a centralized mode, the burden of after-treatment can be reduced, resources can be effectively recycled, the working environment of the die-casting die can be improved, and the situation that too much cleaning time is input, and consequently the production efficiency of the die-casting die is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, and specifically relates to a vacuum valve air extraction device for die-casting molds. Background Technique

[0002] Die casting, whose full name is pressure casting, refers to a casting method in which molten alloy is filled into the mold cavity under high pressure and high speed and cooled and formed under high pressure. It is one of the most widely used and fastest-developing metal hot processing and forming process methods in the casting process. As an advanced precision forming technology for non-ferrous alloy parts, die casting meets the requirements of product complexity, precision, light weight, energy saving, and greening in modern manufacturing. With the continuous improvement of die-casting equipment and process technology levels, the application scope of die-cast products will continue to expand on the existing basis. The main characteristics that distinguish die casting from other casting methods are high pressure and high speed. The molten metal is filled into the cavity under pressure and crystallizes and solidifies under higher pressure. The common pressure is 15 - 100 MPa. The molten metal fills the cavity at high speed, usually at 10 - 50 meters per second, and some can even exceed 80 meters per second. Therefore, the filling time of the molten metal wave is extremely short and can fill the cavity within about 0.01 - 0.2 seconds. Die casting is a precise casting method. The dimensional tolerance of die-cast parts cast by die casting is very small, and the surface accuracy is very high. In most cases, die-cast parts can be assembled and applied without further turning processing, and threaded parts can also be directly cast. Most small parts such as general camera parts, typewriter parts, electronic computing device parts, and ornaments, as well as complex parts of transportation tools such as automobiles, locomotives, and airplanes, are mostly manufactured by die-casting method.

[0003] At present, during the die-casting forming process, the gas in the die-casting mold during the filling of molten aluminum is exhausted through the air duct and the plate-type exhaust block, but the remaining gas trapped in the cavity is not completely exhausted. The trapped gas filling back is very likely to generate pores inside the filled product, resulting in pore defects in the product and affecting the forming quality of the product. Moreover, some impurities will remain during the die-casting process, and these impurities will directly affect the working environment of the die-casting mold. Therefore, a vacuum valve air extraction device for die-casting molds is needed to improve the above problems. Content of the Utility Model

[0004] In order to solve the problems that during the die-casting forming process at present, the gas in the die-casting mold during the filling of molten aluminum is exhausted through the air duct and the plate-type exhaust block, but the remaining gas trapped in the cavity is not completely exhausted. The trapped gas filling back is very likely to generate pores inside the filled product, resulting in pore defects in the product and affecting the forming quality of the product. Moreover, some impurities will remain during the die-casting process, and these impurities will directly affect the working environment of the die-casting mold, the purpose of the present utility model is to provide a vacuum valve air extraction device for die-casting molds to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions:

[0006] A vacuum valve air extraction device for a die-casting mold, comprising a main body, wherein a bottom assembly and an air extraction assembly are fixedly connected to the top of the main body;

[0007] The bottom assembly includes a bearing plate, a base is fixedly connected to the top of the bearing plate, a casting mold cavity and air holes are formed inside the base, and a fixed hole plate is fixedly connected to the side of the base;

[0008] The air extraction assembly includes a high-pressure vacuum extractor, a waste bin is fixedly connected to the bottom of the high-pressure vacuum extractor, a first filter plate is fixedly connected inside the waste bin, an air inlet pipe and an exhaust pipe are fixedly connected to the side of the high-pressure vacuum extractor, and a second filter plate is fixedly connected inside the exhaust pipe.

[0009] As a preferred solution of the present utility model, the fixed hole plate is fixedly connected to the air inlet pipe, and a fitting outer plate is fixedly connected to the top of the base.

[0010] As a preferred solution of the present utility model, a content meter is fixedly connected to the top of the air inlet pipe, and a valve is arranged on the side of the exhaust pipe.

[0011] As a preferred solution of the present utility model, the main body includes a loading bottom plate, a support rod is fixedly connected to the top of the loading bottom plate, and a supporting plate is fixedly connected to the top of the support rod.

[0012] As a preferred solution of the present utility model, a positioning pipe seat is fixedly connected to the top of the supporting plate, and a top plate is fixedly connected to the top of the positioning pipe seat.

[0013] As a preferred solution of the present utility model, a hydraulic cylinder is installed on the top of the top plate, a connecting block is fixedly connected to the output end of the hydraulic cylinder, and a casting mold body is fixedly connected to the bottom of the connecting block.

[0014] As a preferred solution of the present utility model, a control box is fixedly connected to the top of the bearing plate, and a digital display screen is fixedly connected to the side of the control box.

[0015] As a preferred solution of the present utility model, a switch, an operating rod and physical buttons are arranged on the side of the control box.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. In the present utility model, by using a high-pressure vacuum extractor to extract the residual air in the mold cavity, the residual air in the mold cavity can be completely removed, avoiding the defect of residual air during the die-casting process, thereby improving the quality of product forming. The high-pressure vacuum extractor has the advantages of low cost, simple structure, and convenient use.

[0018] 2. In the present utility model, by using the first filter plate and the second filter plate to filter and collect the impurities contained in the residual air, the burden of post-treatment can be reduced, resources can be effectively recycled, the working environment of the die-casting mold can be improved, and too much cleaning time can be avoided, thereby reducing the production efficiency of the die-casting mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is an exploded schematic diagram of the air extraction and filtration assembly of the present utility model;

[0021] Figure 3 is a schematic diagram of the control assembly structure of the present utility model;

[0022] Figure 4 is a schematic diagram of the bottom assembly structure of the present utility model.

[0023] In the figure: 1, main body; 101, loading bottom plate; 102, support rod; 103, supporting plate; 104, positioning pipe seat; 105, top plate; 106, hydraulic cylinder; 107, connecting block; 108, mold body; 2, bottom assembly; 201, bearing plate; 202, base; 203, fitting outer plate; 204, mold cavity; 205, air hole; 206, fixed orifice plate; 207, control box; 208, digital display screen; 209, switch; 210, operating rod; 211, physical button; 3, air extraction assembly; 301, high-pressure vacuum extractor; 302, first filter plate; 303, waste bin; 304, intake pipe; 305, second filter plate; 306, content meter; 307, exhaust pipe; 308, valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0025] Embodiment: Please refer to Figures 1 - 4A vacuum valve air extraction device for a die-casting mold as shown, includes a main body 1, and a bottom component 2 and an air extraction component 3 are fixedly connected to the top of the main body 1;

[0026] In this embodiment, referring to Figure 1 , Figure 2 and Figure 4 As shown, the bottom component 2 includes a bearing plate 201, a base 202 is fixedly connected to the top of the bearing plate 201, a casting mold cavity 204 and an air hole 205 are opened inside the base 202, a fixed hole plate 206 is fixedly connected to the side of the base 202, the air extraction component 3 includes a high-pressure vacuum extractor 301, a waste bin 303 is fixedly connected to the bottom of the high-pressure vacuum extractor 301, a first filter plate 302 is fixedly connected inside the waste bin 303, an air inlet pipe 304 and an exhaust pipe 307 are fixedly connected to the side of the high-pressure vacuum extractor 301, a second filter plate 305 is fixedly connected inside the exhaust pipe 307. By using the high-pressure vacuum extractor 301 to extract the residual air in the casting mold cavity 204, the residual air in the casting mold cavity 204 can be completely removed, avoiding the defect of residual air during die-casting, thereby improving the quality of product forming. The high-pressure vacuum extractor 301 has the advantages of low cost, simple structure, and convenient use.

[0027] Wherein, the fixed hole plate 206 is fixedly connected to the air inlet pipe 304, a fitting outer plate 203 is fixedly connected to the top of the base 202, a content meter 306 is fixedly connected to the top of the air inlet pipe 304, a valve 308 is arranged on the side of the exhaust pipe 307. By using the first filter plate 302 and the second filter plate 305 to filter and centrally collect the impurities contained in the residual air, the burden of later processing can be reduced, resources can be effectively recycled, the working environment of the die-casting mold can be improved, and too much cleaning time can be avoided, thereby reducing the production efficiency of the die-casting mold.

[0028] In this embodiment, referring to Figure 1 and Figure 3 As shown, the main body 1 includes a loading bottom plate 101, a support rod 102 is fixedly connected to the top of the loading bottom plate 101, a supporting plate 103 is fixedly connected to the top of the support rod 102, a positioning pipe seat 104 is fixedly connected to the top of the supporting plate 103, a top plate 105 is fixedly connected to the top of the positioning pipe seat 104, a hydraulic cylinder 106 is installed on the top of the top plate 105, a connecting block 107 is fixedly connected to the output end of the hydraulic cylinder 106, a casting mold body 108 is fixedly connected to the bottom of the connecting block 107, a control box 207 is fixedly connected to the top of the bearing plate 201, a digital display screen 208 is fixedly connected to the side of the control box 207, a switch 209, an operating rod 210 and physical buttons 211 are arranged on the side of the control box 207. Devices such as the operating rod 210 and the physical buttons 211 can increase the convenience of controlling the die-casting mold device.

[0029] In this solution, when a vacuum valve air extraction device for a die-casting mold is in use, the operating rod 210 is used to control the telescopic movement of the hydraulic cylinder 106, so that the mold body 108 at the bottom of the connecting block 107 is closed with the mold cavity 204. After the mold is closed, the high-pressure vacuum extractor 301 is driven to extract the residual air from the air hole 205 into the intake pipe 304. After flowing through the intake pipe 304, the residual air will finally enter the high-pressure vacuum extractor 301. After being filtered by the first filter plate 302 and the second filter plate 305, the impurities contained in the gas will fall into the waste bin 303. Opening the valve 308 allows the filtered gas to be discharged from the exhaust pipe 307, which can reduce the burden of post-treatment, effectively recycle resources, and also achieve the purpose of keeping the production environment clean.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum valve air extraction device for a die-casting mold, comprising a main body (1), characterized in that: At the top of the main body (1), a bottom component (2) and an air extraction component (3) are fixedly connected. The bottom component (2) includes a bearing plate (201). At the top of the bearing plate (201), a base (202) is fixedly connected. Inside the base (202), a casting cavity (204) and air holes (205) are formed. On the side of the base (202), a fixed hole plate (206) is fixedly connected. The air extraction component (3) includes a high-pressure vacuum extractor (301). At the bottom of the high-pressure vacuum extractor (301), a waste bin (303) is fixedly connected. Inside the waste bin (303), a first filter plate (302) is fixedly connected. On the side of the high-pressure vacuum extractor (301), an air inlet pipe (304) and an exhaust pipe (307) are fixedly connected. Inside the exhaust pipe (307), a second filter plate (305) is fixedly connected.

2. The vacuum valve air extraction device for a die-casting mold according to claim 1, characterized in that: The fixed hole plate (206) is fixedly connected to the air inlet pipe (304). At the top of the base (202), a fitting outer plate (203) is fixedly connected.

3. A vacuum valve air extraction device for a die-casting mold according to claim 1, characterized in that: At the top of the air inlet pipe (304), a content meter (306) is fixedly connected. On the side of the exhaust pipe (307), a valve (308) is provided.

4. A vacuum valve air extraction device for a die-casting mold according to claim 1, characterized in that: The main body (1) includes a loading bottom plate (101). At the top of the loading bottom plate (101), a support rod (102) is fixedly connected. At the top of the support rod (102), a supporting plate (103) is fixedly connected.

5. The vacuum valve air extraction device for a die-casting mold according to claim 4, characterized in that: At the top of the supporting plate (103), a positioning pipe seat (104) is fixedly connected. At the top of the positioning pipe seat (104), a top plate (105) is fixedly connected.

6. The vacuum valve air extraction device for a die-casting mold according to claim 5, characterized in that: At the top of the top plate (105), a hydraulic cylinder (106) is installed. The output end of the hydraulic cylinder (106) is fixedly connected to a connecting block (107). At the bottom of the connecting block (107), a casting body (108) is fixedly connected.

7. A vacuum valve air extraction device for a die-casting mold according to claim 1, characterized in that: At the top of the bearing plate (201), a control box (207) is fixedly connected. On the side of the control box (207), a digital display screen (208) is fixedly connected.

8. A vacuum valve air extraction device for a die-casting mold according to claim 7, characterized in that: On the side of the control box (207), a switch (209), an operating rod (210), and physical buttons (211) are provided.

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