A cold chamber die casting machine

Abstract

This utility model relates to the technical field of cold chamber die casting machines, and discloses a cold chamber die casting machine. The utility model includes a cold chamber die casting machine and a suction plate. The suction plate has a hollow structure with suction holes on its sides. The suction plate is connected to a negative pressure suction tank, which is connected to a vacuum pump via a pipe. Under the action of the vacuum pump, a vacuum is drawn into the negative pressure suction tank. The suction port of the negative pressure suction tank is equipped with a solenoid valve, which closes during the vacuuming process. Compared with traditional waste gas absorption and treatment devices, this utility model, by using a hollow thin-plate suction plate in conjunction with negative pressure suction, can quickly enter between the two molds during mold separation in the cold chamber die casting machine and rapidly absorb the hot waste gas into the negative pressure suction tank. Then, a two-position three-way valve switches the connection state of the air pipe to connect with a turbine fan, and then the waste gas is sucked away. When the cold chamber die casting machine closes the mold again...

Description

Technical Field

[0001] This utility model relates to the field of cold chamber die casting machine technology, and in particular to a cold chamber die casting machine with a rapid waste gas absorption device. Background Technology

[0002] The existing patent publication number (CN211614261U) discloses a gas extraction hood for a die-casting machine, including a hood support, a steel platform support, a hood base, steps, a steel platform, an external connecting plate, a mold release agent separator, a movable hood, a fixed hood, an exhaust port, a hood transmission device, and a limiting post. The fixed hood is located on the side of the movable hood away from the hood transmission device and is fixedly installed to the hood base. The mold release agent separator has an external connecting plate on the side near the steps. The limiting post is installed on the steel platform on the movable hood's moving track. The exhaust port is installed on the mold release agent separator. During operation, the movable hood moves to the fixed hood and overlaps with it. The waste gas generated during die casting is collected and filtered by the separator through the hood and air duct. Clean air is discharged from the separator's exhaust port. When mold replacement is required, the movable hood separates from the fixed hood via a drive motor and rack.

[0003] However, the suction device is bulky, and the exhaust gas still tends to diffuse easily.

[0004] This proposal is put forward in order to improve and optimize the above-mentioned problems or shortcomings. Utility Model Content

[0005] A cold chamber die casting machine, comprising a cold chamber die casting machine;

[0006] It also includes an air suction plate, which is a hollow structure with air suction holes on the side. The air suction plate is connected to a negative pressure vacuum tank, which is connected to a vacuum pump through a pipe. Under the action of the vacuum pump, the negative pressure vacuum tank is evacuated. The air suction port of the negative pressure vacuum tank is equipped with a solenoid valve, which is closed when the negative pressure vacuum tank is evacuated.

[0007] It also includes a linear drive unit, on which the suction plate is mounted and actuates to extend the suction plate between the two molds when the cold chamber die casting machine is opened;

[0008] It also includes a turbine fan, which is connected to the pipeline through a valve body, and under the switching action of the valve body, only either the turbine fan or the vacuum pump is connected to the negative pressure suction tank through a pipeline.

[0009] Preferably, an electric lifting rod is installed on the base of the cold chamber die casting machine, and an electric lifting rod control box is also configured to control the movement of the electric lifting rod. A bracket is fixedly provided at the upper end of the electric lifting rod, and a negative pressure suction tank is fixedly provided at the other end of the bracket.

[0010] Preferably, a fixing rod is fixedly provided on the bracket, and the upper end of the air intake plate is fixedly connected to the fixing rod.

[0011] Preferably, the negative pressure suction tank and the suction plate are connected by a suction throat, and the suction throat is a tapered tube structure with a larger upper end and a smaller lower end, which can effectively increase the flow velocity at the lower end and increase the suction force.

[0012] Preferably, it also includes a two-position three-way valve. The turbine fan and the vacuum pump are connected to the two-position three-way valve through a pipeline. The two-position three-way valve is connected to the air pipe. By switching the position of the two-position three-way valve, the component (i.e., the vacuum pump or the turbine fan) connected to the negative pressure suction tank can be adjusted.

[0013] Preferably, the turbine fan is connected to the exhaust gas purification device through a pipe, and the exhaust gas is discharged after being treated by the exhaust gas purification device.

[0014] The advantages and positive effects of this utility model are:

[0015] 1. Compared with traditional waste gas absorption and treatment devices, this application uses a hollow thin-plate suction plate in conjunction with negative pressure suction. When the cold chamber die-casting machine is separating molds, it can quickly enter between the two molds to rapidly absorb the hot waste gas into the negative pressure suction tank. Then, the connection state of the air pipe is switched to be connected to the turbine fan through a two-position three-way valve, and then the waste gas is sucked away. When the cold chamber die-casting machine closes the molds again, the vacuum pump is connected to the air pipe through the two-position three-way valve, and then the negative pressure suction tank is pressurized. Compared with the prior art, this can improve the diffusion of flue gas, reduce the flue gas escape rate, and improve the waste gas treatment effect. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model.

[0019] The attached diagram is labeled as follows: 10. Cold chamber die casting machine; 11. Air pipe; 12. Support frame; 13. Electric lifting rod; 14. Electric lifting rod control box; 15. Negative pressure suction tank; 16. Fixed rod; 17. Suction pipe; 18. Suction plate; 19. Vacuum pump; 20. Turbine fan; 21. Two-position three-way valve; 22. Exhaust gas purification device. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0022] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0023] like Figure 1-2 As shown, the present invention provides a cold chamber die casting machine, including a cold chamber die casting machine 10.

[0024] It also includes a suction plate 18, which has a hollow structure and suction holes on the side. The suction plate 18 is connected to a negative pressure vacuum tank 15. The negative pressure vacuum tank 15 is connected to a vacuum pump through a pipe. Under the action of the vacuum pump, the negative pressure vacuum tank 15 is evacuated. The suction port of the negative pressure vacuum tank 15 is equipped with a solenoid valve. When the negative pressure vacuum tank 15 is evacuated, the solenoid valve is closed.

[0025] It also includes a linear drive unit, on which the suction plate 18 is mounted and actuates to extend the suction plate 18 between the two molds when the cold chamber die casting machine 10 is opened;

[0026] It also includes a turbine fan 20, which is connected to the pipeline through a valve body, and under the switching action of the valve body, only either the turbine fan 20 or the vacuum pump 19 is connected to the negative pressure suction tank 15 through a pipeline.

[0027] Preferably, an electric lifting rod 13 is installed on the base of the cold chamber die casting machine 10, and an electric lifting rod control box 14 is also configured to control the movement of the electric lifting rod 13. A bracket 12 is fixedly provided at the upper end of the electric lifting rod 13, and a negative pressure suction tank 15 is fixedly provided at the other end of the bracket 12.

[0028] Preferably, a fixing rod 16 is fixedly provided on the bracket 12, and the upper end of the air intake plate 18 is fixedly connected to the fixing rod 16.

[0029] Preferably, the negative pressure suction tank 15 and the suction plate 18 are connected by a suction throat 17, and the suction throat 17 is a tapered tube structure with a larger upper end and a smaller lower end, which can effectively increase the flow velocity at the lower end and increase the suction force.

[0030] Preferably, it also includes a two-position three-way valve 21. The turbine fan 20 and the vacuum pump 19 are connected to the two-position three-way valve 21 through pipes. The two-position three-way valve 21 is connected to the air pipe 11. By switching the position of the two-position three-way valve 21, the component connected to the negative pressure suction tank 15 (i.e., the vacuum pump 19 or the turbine fan 20) can be adjusted.

[0031] Preferably, the turbine fan 20 is connected to the exhaust gas purification device 22 through a pipe, and the exhaust gas is discharged after being treated by the exhaust gas purification device 22.

[0032] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A cold chamber die casting machine, comprising a cold chamber die casting machine (10); characterized in that: It also includes an air suction plate (18), which has a hollow structure and air suction holes on the side. The air suction plate (18) is connected to a negative pressure vacuum tank (15). The negative pressure vacuum tank (15) is connected to a vacuum pump through a pipe. Under the action of the vacuum pump, the negative pressure vacuum tank (15) is evacuated. The air suction port of the negative pressure vacuum tank (15) is equipped with a solenoid valve. When the negative pressure vacuum tank (15) is evacuated, the solenoid valve is closed. It also includes a linear drive unit, on which the suction plate (18) is mounted and actuates to extend the suction plate (18) between the two molds when the cold chamber die casting machine (10) is opened; It also includes a turbine fan (20), which is connected to the pipeline through a valve body, and under the switching action of the valve body, only either the turbine fan (20) or the vacuum pump (19) is connected to the negative pressure suction tank (15) through a pipeline.

2. The cold chamber die-casting machine according to claim 1, characterized in that: An electric lifting rod (13) is installed on the base of the cold chamber die casting machine (10), and an electric lifting rod control box (14) is also configured to control the operation of the electric lifting rod (13). A bracket (12) is fixedly installed at the upper end of the electric lifting rod (13), and a negative pressure suction tank (15) is fixedly installed at the other end of the bracket (12).

3. A cold chamber die-casting machine according to claim 2, characterized in that: A fixing rod (16) is fixedly provided on the bracket (12), and the upper end of the air intake plate (18) is fixedly connected to the fixing rod (16).

4. A cold chamber die-casting machine according to claim 3, characterized in that: The negative pressure suction tank (15) and the suction plate (18) are connected by a suction throat (17), and the suction throat (17) is a tapered tube structure with a larger upper port and a smaller lower port, which can effectively increase the flow velocity at the lower port and increase the suction force.

5. A cold chamber die-casting machine according to claim 4, characterized in that: It also includes a two-position three-way valve (21), the turbine fan (20) and the vacuum pump (19) are connected to the two-position three-way valve (21) through a pipe, the two-position three-way valve (21) is connected to the air pipe (11), and the components connected to the negative pressure suction tank (15) can be adjusted by switching the position of the two-position three-way valve (21).

6. A cold chamber die-casting machine according to claim 5, characterized in that: The turbine fan (20) is connected to the exhaust gas purification device (22) through a pipe, and the exhaust gas is discharged after being treated by the exhaust gas purification device (22).

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