CN218656707U

CN218656707U - Pouring device for precision casting

Info

Publication number: CN218656707U
Application number: CN202222866255.9U
Authority: CN
Inventors: 王镇; 有虎卫
Original assignee: Luoyang Shunhua Heavy Industry Co ltd
Current assignee: Luoyang Shunhua Heavy Industry Co ltd
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-03-21
Anticipated expiration: 2032-10-29

Abstract

The utility model provides a pouring device for precision casting, includes the base, sets up the box that is used for built-in mould shell on the base and can vertically go up and down to set up the hopper of pouring on the base, and the bottom of pouring the hopper is equipped with the pipe of pouring that is used for with the feed liquor pipe butt joint intercommunication of mould shell, and the intercommunication box is equipped with and is used for the vacuum pump that can be to the box evacuation, and the hopper is pour in the intercommunication and the pipe of pouring is equipped with degassing tank, connect degassing tank top with the vacuum pump is equipped with first exhaust tube. The utility model discloses a pouring device can be under the vacuum pump effect, and the gas that is mingled with in the desorption alloy feed liquid has promoted precision casting's pouring quality after the alloy feed liquid gets into the feeder hopper.

Description

Pouring device for precision casting

Technical Field

The utility model relates to a mould shell production facility technical field, concretely relates to pouring device for precision casting.

Background

The investment precision casting technology is a technological method for producing metal alloy castings, and is characterized by that it usually adopts wax to make mould, and its exterior is covered with several layers of refractory materials of clay and adhesive, etc., and then heated to make the wax be molten and flowed out so as to obtain hollow shell formed from refractory material, then the metal is molten and poured into the hollow shell, and after the metal is cooled, the refractory material is broken into pieces so as to obtain metal parts.

The used pouring device of investment casting is used for pouring the alloy feed liquid into the investment casting mould shell, the existing pouring device for extracting vacuum from the mould shell by adopting a vacuum pump so as to improve the pouring quality is adopted, however, the pouring quality can be influenced by mixed gas in the process of pouring the alloy feed liquid into the mould shell by the existing pouring device, in addition, the vacuum degree of a period of time is usually maintained after the mould shell is poured, the existing pouring device is usually plugged by pulling out an exhaust pipe to use a plug after the vacuum extraction is finished, when the exhaust pipe is pulled out, the vacuum degree is easy to be damaged to a certain degree, and the pouring device is not beneficial to realizing high-quality pouring.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pouring device for precision casting, it can effectively get rid of the mix with gas in the alloy feed liquid at the in-process of pouring, promotes precision casting's pouring quality.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be:

the utility model provides a pouring device for precision casting, includes the base, sets up the box that is used for built-in mould shell on the base and can vertically go up and down to set up the hopper of pouring on the base, the bottom of pouring the hopper be equipped with be used for with the feed liquor pipe butt joint pipe of mould shell the pipe of pouring of intercommunication, the intercommunication box is equipped with and is used for the vacuum pump that can be to box evacuation, its characterized in that: the hopper is pour in the intercommunication and the pipe is pour and is equipped with degassing tank, connect degassing tank top with the vacuum pump is equipped with first exhaust tube.

As the utility model discloses a preferred scheme, the vertical stand that is equipped with on the base is equipped with the thing platform of putting that is used for supporting degassing tank through the sliding sleeve on the stand.

As an optimized proposal of the utility model, a second exhaust tube communicated with a vacuum pump is arranged on the box body.

As a preferred scheme of the utility model, first exhaust tube and second exhaust tube pass through three-way valve and vacuum pump connection.

As an optimized scheme of the utility model, all be equipped with the valve on first exhaust tube and the feed liquor pipe.

As an optimized scheme of the utility model, be equipped with the hose of being convenient for with vacuum pump connection on the second exhaust tube.

As a preferred scheme of the utility model, be equipped with the shutoff subassembly that can shutoff second exhaust tube when losing vacuum pump extraction power on the second exhaust tube.

As a preferred scheme of the utility model, the shutoff subassembly includes the body, the vertical arc passageway that is equipped with in the body is equipped with the shutoff ball that can shutoff arc passageway lower port when losing vacuum pump extraction power in the arc passageway.

As a preferred scheme of the utility model, the last port of arc passageway is equipped with the arch that can prevent blocking ball shutoff arc passageway upper end mouth.

As a preferred scheme of the utility model, the body is equipped with the last butt joint mouth and the lower butt joint mouth of being convenient for with the butt joint of second exhaust tube.

The utility model discloses beneficial effect:

1. the utility model discloses a pouring device for precision casting is provided with in vacuum pump connection's degassing tank, makes the alloy feed liquid after getting into the feeder hopper, can be under the vacuum pump effect, and the gas that is mingled with in the desorption alloy feed liquid has promoted precision casting's pouring quality.

2. The utility model discloses a pouring device for precision casting is provided with the shutoff subassembly on the exhaust duct that bleeds to the box, after the vacuum pump stop operation, the shutoff pipeline that bleeds can be in the shutoff ball that sets up under dead weight and the box vacuum combined action in the shutoff subassembly, can be favorable to maintaining and keep good vacuum environment, further promotes precision casting's pouring quality.

Drawings

FIG. 1 is a schematic structural view of a casting apparatus for precision casting according to an embodiment;

FIG. 2 is a schematic top view of the structure of FIG. 1;

fig. 3 is a schematic cross-sectional structural diagram of a plugging assembly in a pouring device for precision casting according to an embodiment.

The labels in the figure are: 1. pillar, 2, sliding sleeve, 3, put the thing platform, 4, degasification jar, 401, pour the pipe, 5, pour the hopper, 6, first exhaust tube, 601, valve, 7, three-way valve, 8, vacuum pump, 9, shutoff subassembly, 901, body, 902, go up to interface, 903, arch, 904, arc passageway, 905, shutoff ball, 906, lower to interface, 10, second exhaust tube, 11, the mould shell, 1101, feed liquor pipe, 12, box, 13, base.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, wherein in the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

The utility model provides a pouring device's concrete embodiment for precision casting:

referring to fig. 1 to 3, the pouring device for precision casting of this embodiment includes a base 13, a box 12, a pouring hopper 5, a pouring pipe 401 and a vacuum pump 8, where the base 13 is used as a supporting platform for the box 12, a vertical column 1 extending upward is provided on the base 13, the vertical column 1 may be provided with a plurality of columns, and may be uniformly distributed on the base 13, in this embodiment, a platform 3 is provided on the vertical column 1, the platform 3 is connected with the vertical column 1 through a sliding sleeve 2, the platform 3 can vertically lift along the vertical column 1, and understandably, a power device that drives the platform 3 to vertically lift, such as a hydraulic cylinder or an electric push rod, may also be provided on the base 13, and may also be used in cooperation with a vertical driving device in production.

The casting hopper 5 and the casting pipe 401 are communicated to form a degassing tank 4, the degassing tank 4 can be a universal tank body, understandably, alloy feed liquid enters the degassing tank 4 and is stored in the degassing tank 4 for a short time and then flows out through the casting pipe 401, and a first exhaust pipe 6 is arranged between the top of the degassing tank 4 and the vacuum pump 8.

The box 12 is used for placing a formwork 11 to be poured, generally, the box 12 is provided with a bin door capable of being opened and closed in a sealing manner so as to place the formwork 11, a liquid inlet pipe 1101 is arranged on the formwork 11, a pipe sleeve convenient for the pouring pipe 401 to be in butt joint with the liquid inlet pipe 1101 is arranged at the top of the box 12, and the pipe sleeve is sealed with the box 12 through a sealing element.

After the formwork 11 is placed, the object placing platform 3 is lifted to enable the pouring pipe 401 to be in butt joint with the liquid inlet pipe 1101, alloy liquid is poured from the pouring hopper 5, when the vacuum pump 8 works, the degassing tank 4 is vacuumized through the first air exhaust pipe 6, mixed gas in the alloy liquid passing through the pouring hopper 5 can be smoothly separated out, and pouring quality of precision casting is improved.

In this embodiment, the second exhaust pipe 10 is disposed on the box 12 and is convenient for communicating with the vacuum pump 8, as mentioned above, when the vacuum pump 8 works, the vacuum pump can pump vacuum to the box 12 to maintain the vacuum environment of the formwork 11, when the vacuum pump is specifically disposed, the three-way valve 7 is disposed on the exhaust pipeline of the vacuum pump 8, the first exhaust pipe 6 and the second exhaust pipe 10 can be connected with the vacuum pump 8 through the three-way valve 7, and as can be understood, the valves 501 can be disposed on the first exhaust pipe 6, the pouring pipe 401 and the liquid inlet pipe 1101.

As mentioned above, when the object placing table 3 is lifted, in order to facilitate the connection between the second air exhaust pipe 10 and the three-way valve 7, a section of hose is provided on the second air exhaust pipe 10, i.e. the hose can smoothly connect the second air exhaust pipe 10 and the three-way valve 7 in the lifting process of the object placing table 3.

After the vacuum pump 8 stops operating, the box 12 generally needs to be maintained at a certain vacuum degree, in this embodiment, the blocking component 9 is disposed on the second pumping pipe 10, and the blocking component 9 is used for blocking the second pumping pipe 10 when the power of the vacuum pump 8 is lost, so as to facilitate maintaining the vacuum degree of the box 12 and avoid the influence of the sucked gas on the vacuum effect of the box 12.

The plugging component 9 comprises a pipe body 901, the pipe body 901 is provided with an upper butt joint 902 and a lower butt joint 906 which are convenient for butt joint with the second exhaust pipe 10, the upper butt joint 902 and the lower butt joint 906 can be threaded mouths which are in threaded connection with the second exhaust pipe 10, an arc-shaped channel 904 is vertically arranged in a pipeline of the pipe body 901, a plugging ball 905 is arranged in the arc-shaped channel 904, and the plugging ball 905 can be made of elastic rubber materials so as to ensure effective fitting of the lower port of the plugging arc-shaped channel 904.

After the vacuum pump 8 stops working, the blocking ball 905 loses the extraction power, and the lower port of the arc-shaped channel 904 can be blocked under the action of self weight and vacuum suction in the box body 12, so that external gas is prevented from entering the box body 12, a good vacuum state of the box body 12 is favorably maintained, and the pouring quality of precision casting is improved.

In order to avoid plugging the arc-shaped channel 904 during vacuum pumping, the upper port of the arc-shaped channel 904 is provided with a protrusion 903, and when the vacuum pump 8 operates, even if the plugging ball 905 is sucked above the arc-shaped channel 904, the protrusion 903 can avoid the complete plugging of the upper port of the arc-shaped channel 904 by the plugging ball 905, so that smooth air pumping is ensured.

It should be noted that the detailed description is not the prior art, and the above embodiments are only used to illustrate the present invention, but the present invention is not limited to the above embodiments, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the present invention.

Claims

1. The utility model provides a pouring device for precision casting, includes base (13), set up box (12) and pouring hopper (5) that can vertical lift setting on base (13) that are used for built-in mould shell (11) on base (13), the bottom of pouring hopper (5) is equipped with and is used for pouring pipe (401) with the feed liquor pipe (1101) butt joint intercommunication of mould shell (11), intercommunication box (12) are equipped with and are used for vacuum pump (8) that can be to box (12) evacuation, its characterized in that: the pouring hopper (5) and the pouring pipe (401) are communicated to be provided with the degassing tank (4), and the top of the degassing tank (4) is connected with the vacuum pump (8) to be provided with the first exhaust pipe (6).

2. The casting device for precision casting according to claim 1, wherein the base (13) is vertically provided with a column (1), and the column (1) is provided with a placing table (3) for supporting the degassing tank (4) through a sliding sleeve (2).

3. A pouring apparatus for precision casting according to claim 1, wherein the tank (12) is provided with a second suction pipe (10) communicating with the vacuum pump (8).

4. A casting apparatus for precision casting according to claim 3, wherein the first exhaust pipe (6) and the second exhaust pipe (10) are connected to a vacuum pump (8) through a three-way valve (7).

5. A pouring device for precision casting according to claim 4, characterized in that the valves (501) are provided on both the first gas suction pipe (6) and the liquid inlet pipe (1101).

6. A casting apparatus for precision casting according to claim 3, wherein the second suction pipe (10) is provided with a hose for facilitating connection to a vacuum pump (8).

7. A casting apparatus for precision casting according to any of claims 1 to 6, characterized in that the second exhaust tube (10) is provided with a blocking assembly (9) capable of blocking the second exhaust tube (10) when the power of the vacuum pump (8) is lost.

8. The pouring device for precision casting according to claim 7, wherein the blocking assembly (9) comprises a pipe body (901), an arc-shaped channel (904) is vertically arranged in the pipe body (901), and a blocking ball (905) capable of blocking the lower port of the arc-shaped channel (904) when the vacuum pump (8) loses power is arranged in the arc-shaped channel (904).

9. The casting apparatus for precision casting according to claim 8, wherein the upper port of the arcuate channel (904) is provided with a projection (903) capable of preventing a blocking ball (905) from blocking the upper port of the arcuate channel (904).

10. A casting apparatus for precision casting according to claim 8, wherein the tube body (901) is provided with an upper butt joint (902) and a lower butt joint (906) for facilitating butt joint with the second suction pipe (10).