High-pressure casting vacuum device

Abstract

The utility model belongs to the technical field of high-pressure casting, and particularly relates to a high-pressure casting vacuum device which comprises a support, a sealing assembly used for extruding and sealing the connecting position of a lower die and an upper die, and a sealing assembly used for sealing the connecting position of the lower die and the upper die. And four groups of sealing assemblies are arranged at the bottom end of the bracket in a square shape. First box bodies are fixedly installed on the two sides of the top end of the support, first air cylinders are fixedly installed in the first box bodies, and the first air cylinders are fixedly provided with an upper mold through piston rods. According to the high-pressure casting vacuum device, the sealing assembly is arranged, so that the effect of extruding and sealing the joint of the lower mold and the upper mold is achieved, the problem that air leakage possibly exists at the mold closing position of an existing high-pressure casting vacuum device can be solved by extruding and sealing the joint of the lower mold and the upper mold, and the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure casting, in particular to a high-pressure casting vacuum device. Background Art

[0002] Pressure casting, also known as die casting, is a casting method in which molten or semi-molten metal is injected at high speed into a metal mold, where it crystallizes under pressure. Common injection pressures range from 30 to 70 MPa, filling speeds from approximately 0.5 to 50 m / s, and filling times from 0.01 to 0.2 seconds. To reduce air bubbles within the mold, a high-pressure vacuum system is used. Vacuum die casting is an advanced die-casting process that removes gas from the mold cavity during the die-casting process, eliminating or significantly reducing pores and dissolved gases within the die-cast part, thereby improving the mechanical properties and surface quality of the die-cast part.

[0003] However, the existing high-pressure casting vacuum device may have air leakage at the mold closing position, and if air leakage occurs, it will affect the vacuuming effect inside the mold. Therefore, a high-pressure casting vacuum device is invented. Utility Model Content

[0004] In view of the above problems and / or the problems existing in the existing high-pressure casting vacuum device, the present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide a high pressure casting vacuum device that can solve the above-mentioned existing problems.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A high-pressure casting vacuum device comprises a bracket, a lower mold is fixedly mounted on the bottom end of the bracket, an upper mold is provided directly above the lower mold, and further comprises:

[0008] A sealing assembly is used to squeeze and seal the connection between the lower mold and the upper mold. Four groups of sealing assemblies are arranged in a square at the bottom end of the bracket.

[0009] As a preferred solution of the high-pressure casting vacuum device described in the present invention, wherein: a first box body is fixedly installed on both sides of the top of the bracket, a first cylinder is fixedly installed in the first box body, and the first cylinder is fixedly installed on the mold through a piston rod.

[0010] As a preferred solution of the high pressure casting vacuum device described in the utility model, the sealing component includes:

[0011] A side panel fixedly mounted on the bottom end of the bracket;

[0012] a second box body, the second box body being fixedly mounted on the side panel;

[0013] The second cylinder is fixedly installed in the second box body.

[0014] As a preferred solution of the high pressure casting vacuum device described in the utility model, the sealing component further includes:

[0015] An extrusion plate, wherein the second cylinder fixes the extrusion plate via a piston rod, and the extrusion plate is in close contact with the connection between the lower mold and the upper mold;

[0016] A sealing strip is fixedly mounted on one side of the extrusion plate and is in close contact with a connection between the lower mold and the upper mold.

[0017] As a preferred solution of the high pressure casting vacuum device described in the utility model, it also includes:

[0018] A moving component is used to apply opposite forces to the lower mold and the upper mold, and the moving component is arranged on the extrusion plate.

[0019] As a preferred solution of the high pressure casting vacuum device described in the utility model, the moving component includes:

[0020] A through hole is provided in the extruded plate;

[0021] A third box body is fixedly mounted on both ends of the inner cavity of the through hole;

[0022] The third cylinder is fixedly installed in the third box body.

[0023] As a preferred solution of the high pressure casting vacuum device described in the utility model, the moving component further includes:

[0024] A support block, wherein the third cylinder is fixedly mounted with the support block via a piston rod;

[0025] A flow slot, the flow slot being provided in the support block;

[0026] Vacuum suction cups: a plurality of vacuum suction cups are fixedly installed on the inner side of the support block.

[0027] As a preferred solution of the high pressure casting vacuum device described in the utility model, the moving component further includes:

[0028] a vacuum pump, the vacuum pump being fixedly mounted on the outer side of the support block;

[0029] The pipeline is fixedly installed on the air inlet end of the vacuum pump, and one end of the pipeline is arranged in the circulation groove.

[0030] Compared with existing technologies:

[0031] 1. By setting up a sealing component, it is possible to achieve the function of squeezing and sealing the connection between the lower mold and the upper mold. By squeezing and sealing the connection between the lower mold and the upper mold, the problem of air leakage at the mold closing position of the existing high-pressure casting vacuum device can be solved, thereby improving the sealing performance.

[0032] 2. By setting up a moving component, it is possible to apply opposite forces to the lower mold and the upper mold. By applying opposite forces to the lower mold and the upper mold, the sealing between the lower mold and the upper mold can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a front view schematic diagram of the structure of the utility model;

[0034] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at center A;

[0035] Figure 3 This is a top view schematic diagram of the sealing assembly of the utility model;

[0036] Figure 4 This is a schematic diagram of the support structure of the utility model.

[0037] In the figure: bracket 10, lower mold 11, first box body 12, first cylinder 13, upper mold 14, side plate 20, second box body 21, second cylinder 22, extrusion plate 23, sealing strip 24, through hole 30, third box body 31, third cylinder 32, support block 33, circulation groove 34, vacuum suction cup 35, vacuum pump 36, and pipeline 37. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] This utility model provides a high pressure casting vacuum device, please refer to Figure 1-Figure 4 The present invention comprises a bracket 10, a lower mold 11 being fixedly mounted at the bottom end of the bracket 10, an upper mold 14 being located directly above the lower mold 11, and a first box body 12 being fixedly mounted on both sides of the top end of the bracket 10. A first cylinder 13 is fixedly mounted in the first box body 12, and the first cylinder 13 is fixedly mounted to the upper mold 14 via a piston rod. In addition, a first vacuum pump is located at the top of the bracket 10, capable of performing a vacuum operation after the lower mold 11 and the upper mold 14 are closed.

[0040] It also includes: a sealing component for extruding and sealing the connection between the lower mold 11 and the upper mold 14. Four groups of sealing components are arranged in a square at the bottom end of the bracket 10.

[0041] The sealing assembly includes: a side plate 20, a second box body 21, a second cylinder 22, an extrusion plate 23, and a sealing strip 24;

[0042] The side plate 20 is fixedly mounted on the bottom end of the bracket 10, the second box body 21 is fixedly mounted on the side plate 20, and the second cylinder 22 is fixedly mounted in the second box body 21. The second cylinder 22 fixes the extrusion plate 23 via a piston rod, and the extrusion plate 23 is in close contact with the connection between the lower mold 11 and the upper mold 14. The sealing strip 24 is fixedly mounted on one side of the extrusion plate 23 and is in close contact with the connection between the lower mold 11 and the upper mold 14. The four groups of extrusion plates 23 are arranged in a rectangular shape.

[0043] It also includes: a moving assembly for applying a force toward each other to the lower mold 11 and the upper mold 14, wherein the moving assembly is provided on the extrusion plate 23;

[0044] The moving assembly includes: a through hole 30, a third box body 31, a third cylinder 32, a support block 33, a flow slot 34, a vacuum suction cup 35, a vacuum pump 36, and a pipeline 37;

[0045] The through hole 30 is formed in the extrusion plate 23. A third housing 31 is fixedly mounted on both ends of the inner cavity of the through hole 30. The third cylinder 32 is fixedly mounted in the third housing 31. The third cylinder 32 is fixedly mounted to the support block 33 via a piston rod. The circulation slot 34 is formed in the support block 33. Several vacuum suction cups 35 are fixedly mounted on the inner side of the support block 33. The vacuum pump 36 is fixedly mounted on the outer side of the support block 33. The pipe 37 is fixedly mounted on the air inlet end of the vacuum pump 36, and one end of the pipe 37 is disposed in the circulation slot 34. The support block 33 located at the bottom contacts the lower mold 11, while the support block 33 located at the top contacts the upper mold 14.

[0046] When used, the specific steps are as follows:

[0047] After the lower mold 11 and the upper mold 14 are closed by the first cylinder 13, the second cylinder 22 is used to move the extrusion plate 23 toward the mold until the extrusion plate 23 squeezes the connection between the lower mold 11 and the upper mold 14. At this time, the sealing strip 24 can be used to improve the sealing between the lower mold 11 and the upper mold 14. At the same time, the vacuum pump 36 is used to extract the air from the vacuum suction cup 35 to adsorb the lower support block 33 on the lower mold 11 and the upper support block 33 on the upper mold 14. After that, the third cylinder 32 can apply opposite forces to the lower mold 11 and the upper mold 14 to further improve the sealing between the lower mold 11 and the upper mold 14. After that, the remaining high-pressure casting process can be carried out.

[0048] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A high-pressure casting vacuum device, comprising a bracket (10), a lower mold (11) fixedly mounted at the bottom end of the bracket (10), an upper mold (14) being provided just above the lower mold (11), characterized in that: Also includes: A sealing assembly is provided for extruding and sealing the connection between the lower mold (11) and the upper mold (14); the bottom end of the bracket (10) is provided with four groups of sealing assemblies arranged in a square shape.

2. A high pressure casting vacuum device according to claim 1, characterized in that: A first box body (12) is fixedly mounted on both sides of the top of the bracket (10), a first cylinder (13) is fixedly mounted in the first box body (12), and an upper mold (14) is fixedly mounted on the first cylinder (13) via a piston rod.

3. The high pressure casting vacuum device according to claim 1, characterized in that: The sealing assembly comprises: A side plate (20), wherein the side plate (20) is fixedly mounted on the bottom end of the bracket (10); A second box body (21), wherein the second box body (21) is fixedly mounted on the side plate (20); A second cylinder (22), wherein the second cylinder (22) is fixedly installed in the second box body (21).

4. A high pressure casting vacuum device according to claim 3, characterized in that: The sealing assembly further comprises: An extrusion plate (23), wherein the second cylinder (22) fixes the extrusion plate (23) via a piston rod, and the extrusion plate (23) is in close contact with the connection between the lower mold (11) and the upper mold (14); A sealing strip (24) is fixedly mounted on one side of the extrusion plate (23), and the sealing strip (24) is in close contact with the connection between the lower mold (11) and the upper mold (14).

5. The high pressure casting vacuum device according to claim 1, characterized in that: Also includes: A moving assembly for applying opposite forces to a lower die (11) and an upper die (14), wherein the moving assembly is arranged on an extrusion plate (23).

6. A high pressure casting vacuum device according to claim 5, characterized in that: The mobile component includes: a through hole (30), wherein the through hole (30) is formed in the extruded plate (23); A third box body (31), the third box body (31) being fixedly mounted on both ends of the inner cavity of the through hole (30); A third cylinder (32), wherein the third cylinder (32) is fixedly installed in the third box body (31).

7. A high pressure casting vacuum device according to claim 6, characterized in that: The mobile component also includes: A support block (33), wherein the third cylinder (32) is fixedly mounted on the support block (33) via a piston rod; A circulation groove (34), wherein the circulation groove (34) is provided in the support block (33); Vacuum suction cups (35), a plurality of vacuum suction cups (35) are fixedly installed on the inner side of the support block (33).

8. The high pressure casting vacuum device according to claim 7, characterized in that: The mobile component also includes: a vacuum pump (36), wherein the vacuum pump (36) is fixedly mounted on the outer side of the support block (33); A pipeline (37) is fixedly installed on the air inlet end of the vacuum pump (36), and one end of the pipeline (37) is arranged in the circulation groove (34).

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