CN209918866U - Pressure casting equipment - Google Patents
Pressure casting equipment Download PDFInfo
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- CN209918866U CN209918866U CN201920425917.4U CN201920425917U CN209918866U CN 209918866 U CN209918866 U CN 209918866U CN 201920425917 U CN201920425917 U CN 201920425917U CN 209918866 U CN209918866 U CN 209918866U
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Abstract
The utility model relates to a pressure casting device, which comprises a horizontal and closed pressure tank, wherein the front end surface of the pressure tank is a plane and is provided with a tank body door hole, the tank body door hole is covered with a pressure tank sealing door which can be opened and closed, the bottom of an inner cavity of the pressure tank is provided with a horizontal guide rail bottom plate, the front side of the pressure tank is provided with a movable guide rail which can translate along the axis of the pressure tank, the movable guide rail is provided with a flat trolley which can slide along the movable guide rail, and the flat trolley is provided with a pouring sand mold; the rear part of the guide rail bottom plate is provided with a fixed guide rail which is coaxial with the movable guide rail and has the same shape and size; a tank body compressed air inlet is formed in the tank body of the pressure tank, the tank body compressed air inlet is connected with a compressed air control valve through a short pipe, the inlet of the compressed air control valve is connected with a compressed air pipe, and a pressure gauge and a safety valve are mounted on the tank body of the pressure tank. The pressure casting equipment can realize solidification molding of a gravity-poured casting under pressure, is economical and environment-friendly, and can effectively avoid safety accidents.
Description
Technical Field
The utility model relates to a magnesium alloy casting device, in particular to pressure casting equipment belongs to metal casting equipment technical field.
Background
The magnesium alloy has the characteristics of small density, high specific strength, high specific rigidity, good thermal conductivity, good electromagnetic shielding performance, good shock absorption performance, recyclability and the like, and is more and more widely applied.
The casting of the magnesium alloy is usually sand casting, and the magnesium alloy liquid is poured into a sand mold cavity which is adaptive to the shape of the part, and after the magnesium alloy liquid is cooled and solidified, a blank or the part is obtained. The magnesium alloy liquid has large volume shrinkage after solidification, and is easy to generate the defects of shrinkage cavity, shrinkage porosity, slag inclusion and the like, so that the traditional sand mold gravity casting mode is difficult to produce high-quality and complex castings. The low-pressure casting can lead the casting to obtain pressure feeding before solidification, but the safety is poor due to the problems of magnesium casting combustion and the like, once the fire is out or the magnesium liquid in the furnace can not be effectively protected, the safety accident is easy to happen.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the problem that exists among the prior art, provide a pressure casting equipment, can realize that the foundry goods of gravity pouring solidifies the shaping under pressure, economic environmental protection, and can effectively avoid the emergence of incident.
In order to solve the technical problem, the utility model discloses a pressure casting device, including horizontal and closed overhead tank, the preceding terminal surface of overhead tank is the plane and is equipped with jar body door opening, jar body door opening covers and is covered the overhead tank sealing door that can open and close, the front side of overhead tank is equipped with the movable guide rail that can follow the overhead tank axis translation, bear the dull and stereotyped dolly that can slide along the movable guide rail on the movable guide rail, bear the pouring sand mould on the dull and stereotyped dolly; the rear part of the inner cavity of the pressure tank is provided with a fixed guide rail which can be butted with the movable guide rail and has the same shape and size; the tank body of the pressure tank is provided with a tank body compressed air inlet, the tank body compressed air inlet is connected with a compressed air control valve through a short pipe, the inlet of the compressed air control valve is connected with a compressed air pipe, and the tank body of the pressure tank is provided with a pressure gauge and a safety valve.
Compared with the prior art, the utility model discloses following beneficial effect has been obtained: the initial pressure tank sealing door is in an open state, the rear end of the movable guide rail slides into the inner cavity of the pressure tank, the rear end of the movable guide rail is in butt joint with the front end of the fixed guide rail, the flat plate trolley is arranged on the movable guide rail and positioned outside the pressure tank, the pouring sand mold is arranged on the flat plate trolley, the casting mold is poured outside the tank body in a gravity mode, then the flat car carries the pouring sand mold and slides backwards to the fixed guide rail, then the guide rail driving device drives the movable guide rail to move forwards to the outside of the pressure tank, the sealing door of the pressure tank is closed, the compressed air control valve is opened, the pressure tank is pressurized to a set value for pressure maintaining, so that the magnesium alloy liquid is solidified and formed under the pressure, and then the pressure tank is released, the sealing door of the pressure tank is opened again, the movable guide rail slides backwards into the inner cavity of the pressure tank again, the rear end of the movable guide rail is in butt joint with the front end of the fixed guide rail, and the flat car slides to the front end of the movable guide rail to wait for the next pouring. Thus, the magnesium alloy casting is molded under pressure, and the product quality is ensured; the safety problem of low-pressure casting is avoided, and accidents are effectively avoided; meanwhile, the method avoids the use of argon or sulfur hexafluoride gas with higher cost for protection, and is economic and environment-friendly.
As the utility model discloses an improvement, the inner wall of terminal surface before the overhead tank sealing door is articulated to the hinged end of overhead tank sealing door, the area of overhead tank sealing door is greater than the area of jar body door opening, the inner wall of terminal surface inlays to be equipped with and coils at jar body door opening sealing washer all around before the overhead tank. The pressure tank sealing door adopts the interior formula of opening, and when the back was closed to the pressure tank sealing door, the pressure in the jar made the pressure tank sealing door compress tightly more on the sealing washer for it is sealed more reliable, can not outwards open fast moreover, and the security is better.
As a further improvement, the inner wall of the pressure tank sealing door is hinged with a telescopic driving rod which can drive the pressure tank sealing door to open and close, and the fixed end of the telescopic driving rod is hinged with the inner wall of the pressure tank. When the telescopic driving rod extends out, the pressure tank sealing door is closed, and when the telescopic driving rod retracts, the pressure tank sealing door is opened.
As a further improvement, the compressed air inlet of the tank body is positioned at the center of the rear end socket of the pressure tank.
As a further improvement, the inlet of the compressed air pipe is connected with the outlet of the compressed air storage tank, and the circumference of the compressed air storage tank is connected with a storage tank air inlet. The compressed air storage tank is pressurized to the required pressure in advance through the air inlet of the storage tank, so that the pressure of the pressure tank can be quickly increased to the set pressure.
As a further improvement of the present invention, the bottom of the movable guide rail is supported on a movable guide rail support, and the lower end of the movable guide rail support is fixed on the ground. The top of the movable guide rail support can be provided with a guide groove for guiding the movable guide rail; the roller with the edge can also be arranged, so that the guide can be realized, and the moving resistance can be reduced.
As a further improvement of the utility model, the bottom support of overhead tank is on the overhead tank support, the bottom of overhead tank support is fixed subaerial.
As a further improvement, the pressure sensor is installed on the pressure tank body, the opening and closing of the compressed air control valve is controlled by the pressure value measured by the pressure sensor. The automatic control of the pressure tank can be realized.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description, which are provided for reference and illustration purposes only and are not intended to limit the invention.
Fig. 1 is a system diagram of the pressure casting apparatus of the present invention.
Fig. 2 is a front view of the pressure tank of fig. 1.
Fig. 3 is a top view of the pressure tank of fig. 1.
Fig. 4 is a first working state diagram of the present invention.
Fig. 5 is a second working state diagram of the present invention.
Fig. 6 is a third working state diagram of the present invention.
Fig. 7 is a fourth working state diagram of the present invention.
Fig. 8 is a fifth working state diagram of the present invention.
Fig. 9 is a sixth working state diagram of the present invention.
In the figure: 1. a pressure tank; 1a, a tank door hole; 1b, fixing a guide rail; 1c, a tank compressed air inlet; 2. a pressure tank sealing door; 2a, sealing rings; 2b, a telescopic driving rod; 3. a moving guide rail; 4. a flat car; 5. pouring a sand mold; 6. moving the guide rail support; 7. a pressure tank support; 8. a pressure gauge; 9. a safety valve; 10. a pressure sensor; 11. a compressed air control valve; 12. a compressed air pipe; 13. a compressed air storage tank; 13a, a tank inlet; 14. a guide rail driving device.
Detailed Description
As shown in fig. 1 to 3, the pressure casting apparatus of the present invention includes a horizontal and closed pressure tank 1, wherein the bottom of the pressure tank 1 is supported on a pressure tank support 7, and the bottom of the pressure tank support 7 is fixed on the ground. The front end face of the pressure tank 1 is a plane and is provided with a tank body door hole 1a, the tank body door hole 1a is covered with a pressure tank sealing door 2 which can be opened and closed, the front side of the pressure tank 1 is provided with a movable guide rail 3 which can move horizontally along the axis of the pressure tank, the bottom of the movable guide rail 3 is supported on a movable guide rail support 6, and the lower end of the movable guide rail support 6 is fixed on the ground. The top of the movable guide rail support 6 can be provided with a guide groove for guiding the movable guide rail 3; the roller with the edge can also be arranged, so that the guide can be realized, and the moving resistance can be reduced. The movable guide rail 3 is provided with a flat trolley 4 which can slide along the movable guide rail 3, the flat trolley 4 is provided with a pouring sand mold 5, and the rear part of the guide rail bottom plate is provided with a fixed guide rail 1b which can be butted with the movable guide rail 3 and has the same shape and size.
A tank body compressed air inlet 1c is formed in the tank body of the pressure tank 1, and the tank body compressed air inlet 1c can be located in the center of a rear end enclosure of the pressure tank 1. The tank compressed air inlet 1c is connected to a compressed air control valve 11 via a short pipe, the inlet of the compressed air control valve 11 is connected to a compressed air pipe 12, the inlet of the compressed air pipe 12 is connected to the outlet of a compressed air storage tank 13, and a storage tank air inlet 13a is connected to the circumference of the compressed air storage tank 13. The compressed air storage tank 13 is pressurized to a required pressure in advance through the storage tank air inlet 13a, ensuring that the pressure tank 1 can be quickly boosted to a set pressure.
The pressure gauge 8, the safety valve 9 and the pressure sensor 10 are installed on the tank body of the pressure tank 1, and the opening and closing of the compressed air control valve 11 are controlled by the pressure value measured by the pressure sensor 10, so that the pressure of the pressure tank can be automatically controlled.
The hinged end of the pressure tank sealing door 2 is hinged to the inner wall of the front end face of the pressure tank, the area of the pressure tank sealing door 2 is larger than that of the tank body door hole 1a, and the inner wall of the front end face of the pressure tank is embedded with a sealing ring 2a which is coiled around the tank body door hole 1a. The pressure tank sealing door 2 adopts the interior formula of opening, and after pressure tank sealing door 2 closed, the pressure in the jar makes pressure tank sealing door 2 compress tightly on sealing washer 2a more for it is sealed more reliable, can not outwards open fast moreover, and the security is better.
The inner wall of the pressure tank sealing door 2 is hinged with a telescopic driving rod 2b which can drive the pressure tank sealing door 2 to open and close, and the fixed end of the telescopic driving rod 2b is hinged on the inner wall of the pressure tank 1. When the telescopic driving rod 2b extends out, the pressure tank sealing door 2 is closed, and when the telescopic driving rod 2b retracts, the pressure tank sealing door 2 is opened.
As shown in fig. 4, the initial pressure tank sealing door 2 is in an open state, the rear end of the movable guide rail 3 slides into the inner cavity of the pressure tank 1, the rear end of the movable guide rail 3 is in butt joint with the front end of the fixed guide rail 1b, the flat trolley 4 is arranged on the movable guide rail 3 and located outside the pressure tank 1, the pouring sand mold 5 is arranged on the flat trolley 4, and the casting of the casting mold is completed outside the tank body in a gravity mode. Then, as shown in fig. 5, the flat car 4 carries the pouring sand mold 5 and slides backwards to the fixed guide rail 1 b; then, as shown in fig. 6, the guide rail driving device 14 drives the movable guide rail 3 to move forward to the outside of the pressure tank 1; then, as shown in fig. 7, the pressure tank sealing door 2 is closed, the compressed air control valve 11 is opened, the pressure tank 1 is pressurized to a set value, and pressure is maintained, so that the magnesium alloy liquid is solidified and formed under the pressure; then, as shown in fig. 8, the pressure of the pressure tank 1 is relieved, and the sealing door 2 of the pressure tank is opened again; then, as shown in fig. 9, the movable guide rail 3 is slid backward into the inner cavity of the pressure tank 1 again and the rear end is butted against the front end of the fixed guide rail 1 b; and then returning to the state shown in figure 4, the flat car 4 slides to the front end of the movable guide rail 3 to wait for the next pouring. Thus, the magnesium alloy casting is molded under pressure, and the product quality is ensured; the safety problem of low-pressure casting is avoided, and accidents are effectively avoided; meanwhile, the method avoids the use of argon or sulfur hexafluoride gas with higher cost for protection, and is economic and environment-friendly.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (5)
1. The utility model provides a pressure casting equipment, includes horizontal and confined overhead tank, the preceding terminal surface of overhead tank just is equipped with a jar body door opening for the plane, jar body door opening department covers has overhead tank sealing door that can open and close, its characterized in that: a movable guide rail capable of translating along the axis of the pressure tank is arranged on the front side of the pressure tank, a flat trolley capable of sliding along the movable guide rail is loaded on the movable guide rail, and a pouring sand mold is loaded on the flat trolley; the rear part of the inner cavity of the pressure tank is provided with a fixed guide rail which can be butted with the movable guide rail and has the same shape and size; a tank body compressed air inlet is formed in the tank body of the pressure tank, the tank body compressed air inlet is connected with a compressed air control valve through a short pipe, the inlet of the compressed air control valve is connected with a compressed air pipe, and a pressure gauge and a safety valve are mounted on the tank body of the pressure tank; the bottom of the movable guide rail is supported on a movable guide rail support, and the lower end of the movable guide rail support is fixed on the ground.
2. The die casting apparatus of claim 1, wherein: the hinge end of the pressure tank sealing door is hinged to the inner wall of the front end face of the pressure tank, the area of the pressure tank sealing door is larger than that of the tank body door hole, and a sealing ring coiled around the tank body door hole is embedded in the inner wall of the front end face of the pressure tank.
3. The die casting apparatus of claim 2, wherein: the inner wall of overhead tank sealing door articulates there is the flexible actuating lever that can drive overhead tank sealing door and open and close, the stiff end of flexible actuating lever articulates the inner wall of overhead tank.
4. The die casting apparatus of claim 1, wherein: the bottom of the pressure tank is supported on a pressure tank support, and the bottom of the pressure tank support is fixed on the ground.
5. The die casting apparatus according to any one of claims 1 to 4, wherein: and a tank body of the pressure tank is provided with a pressure sensor, and the opening and closing of the compressed air control valve is controlled by a pressure value measured by the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425917.4U CN209918866U (en) | 2019-04-01 | 2019-04-01 | Pressure casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425917.4U CN209918866U (en) | 2019-04-01 | 2019-04-01 | Pressure casting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209918866U true CN209918866U (en) | 2020-01-10 |
Family
ID=69072150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920425917.4U Active CN209918866U (en) | 2019-04-01 | 2019-04-01 | Pressure casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209918866U (en) |
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2019
- 2019-04-01 CN CN201920425917.4U patent/CN209918866U/en active Active
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