CN213496386U

CN213496386U - Double-station sphere centrifugal casting device

Info

Publication number: CN213496386U
Application number: CN202022225746.6U
Authority: CN
Inventors: 李心召
Original assignee: Chengdu Chenghua Machinery Manufacturing Co ltd
Current assignee: Chengdu Chenghua Machinery Manufacturing Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-22
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a double-station sphere centrifugal casting device, which comprises a casting pipe with a first station and a second station, and two casting stations arranged side by side, wherein each casting station comprises a molding cylinder and a sphere mold arranged in the molding cylinder, the sphere mold is provided with a feeding pipe, one end of the feeding pipe extends into the port of the sphere mold, and the other end of the feeding pipe can be communicated with the casting pipe; compared with the traditional static pouring process, the method can avoid the generation of slag inclusion (impurity) defects and effectively improve the mechanical property of the product; furthermore, the utility model discloses be provided with two casting station, after one of them station was poured, can shift to another station and pour into a mould, the product output improves greatly.

Description

Double-station sphere centrifugal casting device

Technical Field

The utility model belongs to the technical field of the pouring, especially, relate to a duplex position spheroid centrifugal casting device.

Background

At present, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. It has the action of rotating 90 degrees, the cock body is a sphere, and a circular through hole or a channel passes through the axis of the cock body.

In the valve manufacturing industry, the ball body in the ball valve is usually manufactured by two processes of casting and forging, but each process has disadvantages. For example, when a forging process is adopted, steel ingots or round steel is forged and formed, and the defects of long processing period, high energy consumption and high cost exist; moreover, workpieces manufactured by the common die forging process are easy to have forging defects, and the structures and the grain sizes of the forgings are not uniform. When the casting process is adopted, molten steel is statically poured into a mould, and the defect of easy slag inclusion (impurities) exists, so that the mechanical property and the flaw detection result are influenced.

At present, the centrifugal casting device for the sphere (patent number: ZL201921295017.9) which is applied by the company only has one station, has larger weight difference with the molten steel of the existing steel-making furnace, can not well use up the molten steel, and has limited yield.

SUMMERY OF THE UTILITY MODEL

The utility model provides a duplex position spheroid centrifugal casting device aims at solving the problem that above-mentioned exists.

The utility model discloses a double-station sphere centrifugal casting device, which comprises a casting tube with a first station and a second station, and two casting stations arranged side by side, wherein each casting station comprises a cylinder and a sphere mold arranged in the cylinder, the sphere mold is provided with an inlet tube, one end of the inlet tube extends into the end opening of the sphere mold, and the other end of the inlet tube can be communicated with the casting tube; when the pouring tube is positioned at the first station, the pouring tube is communicated with a feeding tube of one pouring station; when the pouring tube is at the second station, the pouring tube is communicated with the feeding tube of the other pouring station.

Furthermore, the pouring station comprises a base, two rows of rollers are mounted on the base, each row of rollers is arranged on the same central axis, and at least one roller is a driving wheel.

Furthermore, the molding cylinder is erected on the two rows of rollers of the base, and the sphere mold and the molding cylinder are coaxially arranged.

Furthermore, the ball mould is hollow and cylindrical, a groove area is arranged on the inner wall of the ball mould, and a pipe orifice at the inner end of the feeding pipe is positioned above the middle of the groove area; the groove area is internally provided with a plurality of circles of spherical grooves which can form a sphere with a through hole in space.

Furthermore, two ends of the spherical mould are provided with limiting baffles which are discs with through holes.

Further, the outer wall of the cylinder is provided with a roller groove, the roller is embedded into the roller groove, and the roller is in clearance fit with the roller groove.

Furthermore, a gear ring is arranged on the outer wall of the molding cylinder, the roller is a gear, and the roller is matched with the gear ring.

Furthermore, graphite powder is coated in the spherical groove.

Furthermore, the pouring pipe is driven by a first driving motor, the driving wheel is driven by a second driving motor, and the first driving motor and the second driving motor are both electrically connected with the PLC.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a duplex position spheroid centrifugal casting device, compare in traditional forging process, the process route can be reduced to only a pouring process, can obviously shorten production cycle, and reduced saw blade consumption, the natural gas consumption of forging process heating of saw cutting process, product mechanical properties and grain size are also obviously more excellent; compared with the traditional static pouring process, the method can avoid the generation of slag inclusion (impurity) defects and effectively improve the mechanical property of the product; furthermore, the utility model discloses be provided with two casting station, after one of them station was poured, can shift to another station and pour into a mould, the product output improves greatly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the casting station of the present invention;

FIG. 3 is a side view of the pouring station of the present invention;

in the figure: 1-base, 2-roller, 21-driving wheel, 22-driven wheel, 3-shaped cylinder, 4-sphere mold, 5-spherical groove, 6-feeding pipe, 7-limit baffle, 8-second driving motor and 9-PLC.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides a technical solution: a double-station sphere centrifugal casting device comprises a casting tube with a first station and a second station, and two casting stations arranged side by side, wherein each casting station comprises a molding cylinder 3 and a sphere mold 4 arranged in the molding cylinder 3, a feeding tube 6 is arranged on the sphere mold 4, one end of the feeding tube 6 extends into the port of the sphere mold 4, and the other end of the feeding tube 6 can be communicated with the casting tube; when the pouring tube is positioned at the first station, the pouring tube is communicated with a feeding tube 6 of one pouring station; when the tube is in the second station, it communicates with the feed tube 6 of the other casting station.

The utility model discloses applicable 16 cun to 24 cun middle-diameter spheroid pouring not only is suitable for batch production, also is applicable to the production organization of singleton, small batch simultaneously, and the production organization is more nimble, and has improved the output of product greatly.

In the embodiment, the casting station comprises a base 1, two rows of rollers 2 are arranged on the base 1, each row of rollers 2 is arranged on the same central axis, and at least one roller 2 is a driving wheel 21; the molding cylinder 3 is erected on the two rows of rollers 2 of the base 1, and the sphere mold 4 and the molding cylinder 3 are coaxially arranged. The ball mould 4 is hollow cylinder, the inner wall of the ball mould 4 is provided with a groove area, and the pipe orifice at the inner end of the feeding pipe 6 is positioned above the middle of the groove area; a plurality of circles of spherical grooves 5 are arranged in the groove area, the spherical grooves 5 can form a sphere with a through hole in space, and graphite powder is coated in the spherical grooves 5.

The pouring amount of the molten steel is accurately calculated before pouring, so that the molten steel is prevented from overflowing from the spherical groove 55, the graphite powder can also play a role in protecting the die, and meanwhile, the smoothness of the surface of the casting can be improved, and the quality of the casting is ensured.

The pouring pipe is driven by a first driving motor, the driving wheel 21 is driven by a second driving motor 8, the first driving motor and the second driving motor 8 are electrically connected with the PLC9, and the whole operation of the pouring device is controlled by the PLC 9.

The outer wall of the cylinder 3 is provided with a roller 2 groove, the roller 2 is embedded into the roller 2 groove, and the roller 2 is in clearance fit with the roller 2 groove. The utility model discloses a can also set up to the ring gear on the 3 outer walls of section of thick bamboo, gyro wheel 2 is the gear, gyro wheel 2 and ring gear cooperation.

Wherein, the two ends of the sphere mould 4 are provided with limit baffles 7, and the limit baffles 7 are discs with through holes. The limiting baffles 7 are arranged coaxially with the profile cylinder 3 and are positioned at two ends of the spherical mould 4; the limiting baffle 7 is a disc with a through hole, and the limiting baffle 7 is matched with the end face of the ball body mould 4. The limiting baffle 7 is used for preventing the ball mould 4 from sliding in the molding cylinder 3, and can also be replaced by other components capable of realizing the function, such as a circle of stop blocks or a circle of bulges distributed along the circumference of the inner wall of the molding cylinder 3.

And the molten steel qualified in smelting is subjected to VD vacuum degassing, so that the H, O content in the molten steel is reduced. Starting the whole set of device of the centrifugal casting molding cylinder 3 to rotate according to the process rotating speed, and casting molten steel into the mold of the molding cylinder 3 according to the casting temperature and the casting time set by the casting process; and after one station finishes pouring, transferring the ladle to the other station for pouring. After the molten steel is poured, the whole device is kept to continue to operate according to the operation time of the process, the device is stopped after the time is reached, the whole device is taken down from the driving wheel 22 and placed in a sand pit for cooling, water mist is sprayed on the outer wall of the molding cylinder 3 during pouring and continuous operation, the molding cylinder 3 and the mold are prevented from being damaged by continuous high temperature, the baffle of the molding cylinder 3 is taken out, and the mold and the sphere are respectively taken out.

Molten steel is poured into the spherical mold 4 through a pouring system, the mold drives the driving wheel 21 to rotate by the motor, the driven wheel 22 simultaneously rotates under the action of friction force of the molding cylinder 3, the molding cylinder 3 drives the mold to operate, and the molten steel is gradually crystallized and formed under the action of centrifugal force in the mold.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a duplex position spheroid centrifugal casting device which characterized in that: the casting device comprises a casting tube with a first station and a second station, and two casting stations arranged side by side, wherein each casting station comprises a cylinder and a spherical mold arranged in the cylinder, a feeding tube is arranged on the spherical mold, one end of the feeding tube extends into an end port of the spherical mold, and the other end of the feeding tube can be communicated with the casting tube; when the pouring tube is positioned at the first station, the pouring tube is communicated with a feeding tube of one pouring station; when the pouring tube is at the second station, the pouring tube is communicated with the feeding tube of the other pouring station.

2. The double-station sphere centrifugal casting device according to claim 1, characterized in that: the pouring station comprises a base, two rows of rollers are mounted on the base, each row of rollers is arranged on the same central axis, and at least one roller is a driving wheel.

3. The double-station sphere centrifugal casting device according to claim 2, characterized in that: the molding cylinder is erected on the two rows of rollers of the base, and the sphere mold and the molding cylinder are coaxially arranged.

4. The double-station sphere centrifugal casting device according to claim 3, characterized in that: the ball mould is hollow cylindrical, a groove area is arranged on the inner wall of the ball mould, and a pipe orifice at the inner end of the feeding pipe is positioned above the middle of the groove area; the groove area is internally provided with a plurality of circles of spherical grooves which can form a sphere with a through hole in space.

5. The double-station sphere centrifugal casting device according to claim 1, characterized in that: and two ends of the spherical mould are provided with limiting baffles which are discs with through holes.

6. The double-station sphere centrifugal casting device according to claim 3, characterized in that: the outer wall of the profile cylinder is provided with a roller groove, the roller is embedded into the roller groove, and the roller is in clearance fit with the roller groove.

7. The double-station sphere centrifugal casting device according to claim 3, characterized in that: the outer wall of the molding cylinder is provided with a gear ring, the roller is a gear, and the roller is matched with the gear ring.

8. The double-station sphere centrifugal casting device according to claim 4, characterized in that: graphite powder is coated in the spherical groove.

9. The double-station sphere centrifugal casting device according to claim 2, characterized in that: the pouring pipe is driven by a first driving motor, the driving wheel is driven by a second driving motor, and the first driving motor and the second driving motor are both electrically connected with the PLC.