CN216370125U

CN216370125U - Large casting shrinkage and looseness prevention device

Info

Publication number: CN216370125U
Application number: CN202122787274.8U
Authority: CN
Inventors: 马云超; 高学松; 陈�峰; 孙永胜
Original assignee: Zhongtian Tianjin Intelligent Equipment Manufacturing Co ltd
Current assignee: Zhongtian Intelligent Equipment Tianjin Co Ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-26
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a large casting shrinkage-loosening prevention device which comprises a base, wherein four supporting rod structures are fixed at the top end of the base, a vibration table structure is fixedly connected to the top ends of the four supporting rod structures together, a mold is arranged at the top end of the vibration table structure, and a plurality of dead heads are arranged on the surface of the mold. According to the utility model, the base, the support rod structure, the vibration table structure, the mold, the vibration motor and the cooling circulation structure are arranged, the casting mold is arranged on the surface of the casting table of the vibration table structure, after casting is finished, the whole casting table and the casting mold are driven to vibrate through the vibration motor, shrinkage porosity conditions after metal liquid cooling are reduced, and meanwhile, the cooling circulation structure pumps cooling liquid in the liquid storage tank into the cooling channel in the casting table through the circulation cooling pump, so that the temperature of the casting table is reduced, the temperature of the bottom of the casting mold is reduced through the casting table, the casting in the mold is sequentially cooled from the bottom to the top, and shrinkage porosity can be further prevented.

Description

Large casting shrinkage and looseness prevention device

Technical Field

The utility model relates to the technical field of casting production, in particular to a shrinkage porosity prevention device for a large casting.

Background

Shrinkage porosity means that a last solidified area of a casting does not obtain feeding shrinkage of liquid metal or alloy to form dispersed and fine shrinkage cavities which are often dispersed in an axis area, a thick part, a riser root and the vicinity of an inner pouring gate of the wall thickness of the casting, and the reason for the formation of the shrinkage porosity is that the metal close to the surface of a cavity is quickly reduced to a solidification temperature and solidified into a shell because the casting absorbs heat, the temperature is reduced, the alloy is solidified layer by layer, a solidification layer is thickened, and residual liquid in the casting is reduced in volume and reduced in liquid level because of the liquid shrinkage and the solidification shrinkage of the supplementary solidification layer, and gaps appear in the casting until the inside is completely solidified to form the shrinkage cavities on the upper part of the casting.

The casting shrinkage porosity can be well prevented by using the feeder heads for small castings, but for large castings, the casting shrinkage porosity can be prevented by using a plurality of feeder heads and a pouring vibration platform, but the shrinkage porosity phenomenon cannot be completely eliminated, and when the vibration platform drives a pouring mold to vibrate, alloy liquid in the feeder heads is easy to splash out, so that safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides an anti-loosening device for a large casting.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a large-scale foundry goods anti-shrinkage porosity device, includes the base, the base top is fixed with four bearing bar structures, four the common fixedly connected with shaking table structure in bearing bar structure top, shaking table structure top is equipped with the mould, the mould surface is equipped with a plurality of rising heads, be fixed with vibrating motor below the shaking table structure, shaking table structure top both sides are equipped with shelters from the structure, the base upper surface is equipped with the cooling cycle structure, the cooling cycle structure includes liquid reserve tank and circulative cooling pump.

Furthermore, the lower surface of the base is provided with a plurality of universal wheels, so that the device can be moved conveniently.

Furthermore, bracing piece structure includes sleeve pipe and telescopic link, and the telescopic link bottom be located the sheathed tube inside and with sleeve pipe sliding connection, be connected with the spring between telescopic link bottom and the intraductal diapire of sleeve pipe for the range is bigger when vibrating motor drives the pouring table vibration.

Further, the shaking table structure includes the pouring table, the recess has been seted up on the pouring table top, and the mould is located inside the recess to the bolt that the mould passes through the pouring table lateral wall is fixed, makes the pouring table can drive the mould vibrations.

Furthermore, shelter from the structure and include two and shelter from the lid, two shelter from lid bottom both sides and be connected with two slides, two T type spouts have all been seted up to pouring table top both sides, two the slide respectively with two T type spout sliding connection for shelter from the lid and can slide at the pouring table top.

Furthermore, two the adjacent side of slide all is connected with the dog, prevents that the slide from breaking away from with T type spout at the slip in-process.

Further, a cooling channel is arranged inside the pouring table, a liquid return pipe is connected between the liquid storage tank and the cooling channel, a liquid outlet pipe is connected with the other end of the cooling channel, a communicating pipe is connected between the circulating cooling pump and the liquid storage tank, the circulating cooling pump is convenient to pump cooling liquid into the cooling channel, the pouring table is cooled, and the mold is cooled from the bottom end.

The utility model has the beneficial effects that:

1. when the casting cooling device is used, the pouring mold is arranged on the surface of the pouring table of the vibrating table structure through the base, the supporting rod structure, the vibrating table structure, the mold, the vibrating motor and the cooling circulation structure, after casting pouring is finished, the whole pouring table and the pouring mold are driven to vibrate through the vibrating motor, shrinkage porosity conditions after metal liquid cooling are reduced, meanwhile, the cooling circulation structure pumps cooling liquid in the liquid storage tank into a cooling channel in the pouring table through the circulating cooling pump, the temperature of the pouring table is reduced, the temperature of the bottom of the pouring mold is reduced through the pouring table, castings in the mold are sequentially cooled from the bottom to the top, and shrinkage porosity can be further prevented.

2. When the device is used, the shielding structure is arranged at the top end of the vibrating table structure and comprises two shielding covers, and the two shielding covers are slid to be closed and folded before the vibrating table structure drives the die to vibrate, so that high-temperature molten metal can be prevented from splashing out of the dead head in the vibrating process, and the safety is improved.

Drawings

FIG. 1 is a main sectional view of the present invention;

FIG. 2 is a partial perspective view of the present invention;

FIG. 3 is a cross-sectional view of a casting table of the present invention;

fig. 4 is a sectional view of the support bar structure of the present invention.

Illustration of the drawings:

1. a base; 2. a support rod structure; 21. a sleeve; 22. a telescopic rod; 23. a spring; 3. a vibration table structure; 31. a pouring table; 32. a groove; 33. a cooling channel; 34. a T-shaped chute; 4. a mold; 5. a riser; 6. a vibration motor; 7. a shielding structure; 71. a shielding cover; 72. a slide plate; 73. a stopper; 8. a cooling circulation structure; 81. a liquid storage tank; 82. a circulating cooling pump; 83. a liquid outlet pipe; 84. a liquid return pipe; 9. a universal wheel.

Detailed Description

As shown in fig. 1, relate to a large casting anti-shrinkage-loosening device, including base 1, base 1 top is fixed with four bracing piece structure 2, the common fixedly connected with shaking table structure 3 in 2 tops of four bracing piece structure, shaking table structure 3 top is equipped with

mould

4, 4 surfaces of mould are equipped with a plurality of rising heads 5, be fixed with vibrating motor 6 below

shaking table structure

3, 3 top both sides of shaking table structure are equipped with shelters from structure 7, base 1 upper surface is equipped with cooling cycle structure 8, cooling cycle structure 8 includes liquid reserve tank 81 and circulative cooling pump 82. The lower surface of the base 1 is provided with a plurality of universal wheels 9.

As shown in fig. 1 and 2, the vibrating table structure 3 includes a pouring table 31, a groove 32 is opened at the top end of the pouring table 31, and the mold 4 is located inside the groove 32. The shielding structure 7 includes two shielding covers 71, two sides of the bottom end of the two shielding covers 71 are connected with two sliding plates 72, two T-shaped sliding grooves 34 are respectively formed in two sides of the top end of the pouring table 31, and the two sliding plates 72 are respectively connected with the two T-shaped sliding grooves 34 in a sliding manner. The adjacent sides of the two sliding plates 72 are connected with stoppers 73.

As shown in fig. 1 and 3, a cooling channel 33 is formed in the pouring table 31, a liquid return pipe 84 is connected between the liquid storage tank 81 and the cooling channel 33, a liquid outlet pipe 83 is connected to the other end of the circulating cooling pump 82 and the cooling channel 33, and a communicating pipe is connected between the circulating cooling pump 82 and the liquid storage tank 81.

As shown in FIG. 4, the support rod structure 2 comprises a sleeve 21 and a telescopic rod 22, wherein the bottom end of the telescopic rod 22 is located inside the sleeve 21 and is slidably connected with the sleeve 21, and a spring 23 is connected between the bottom end of the telescopic rod 22 and the bottom wall of the sleeve 21.

When in use: firstly, pouring alloy liquid into the mold 4 through a pouring gate on the mold 4, after pouring is completed, pushing two shielding covers 71 at the top end of the pouring table 31, enabling the two shielding covers 71 to be folded, then starting the vibration motor 6, driving the pouring table 31 and the mold 4 to vibrate through the vibration motor 6, enabling the alloy liquid to be filled in a cavity inside the mold 4, after vibration is completed, starting to cool an alloy casting, starting to pump a cooling liquid inside the liquid storage tank 81 into a cooling channel 33 inside the pouring table 31 at the moment, enabling the pouring table 31 to be cooled, enabling the cooled pouring table 31 to cool the bottom of the mold 4 again, enabling the casting inside the mold 4 to be sequentially cooled from the bottom upwards, and preventing shrinkage porosity from being generated.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a large casting anti-loosening device, includes base (1), its characterized in that: base (1) top is fixed with four bracing piece structure (2), four the common fixedly connected with shaking table structure (3) in bracing piece structure (2) top, shaking table structure (3) top is equipped with mould (4), mould (4) surface is equipped with a plurality of rising heads (5), be fixed with vibrating motor (6) below shaking table structure (3), shaking table structure (3) top both sides are equipped with shelters from structure (7), base (1) upper surface is equipped with cooling cycle structure (8), cooling cycle structure (8) include liquid reserve tank (81) and circulative cooling pump (82).

2. The large casting shrinkage-porosity prevention device according to claim 1, wherein: the lower surface of the base (1) is provided with a plurality of universal wheels (9).

3. The large casting shrinkage-porosity prevention device according to claim 1, wherein: the supporting rod structure (2) comprises a sleeve (21) and a telescopic rod (22), the bottom end of the telescopic rod (22) is located inside the sleeve (21) and is in sliding connection with the sleeve (21), and a spring (23) is connected between the bottom end of the telescopic rod (22) and the bottom wall of the sleeve (21).

4. The large casting shrinkage-porosity prevention device according to claim 1, wherein: the vibrating table structure (3) comprises a pouring table (31), a groove (32) is formed in the top end of the pouring table (31), and the mold (4) is located inside the groove (32).

5. The large casting shrinkage-porosity prevention device according to claim 4, wherein: the shielding structure (7) comprises two shielding covers (71), two sliding plates (72) are connected to two sides of the bottom end of each shielding cover (71), two T-shaped sliding grooves (34) are formed in two sides of the top end of the pouring table (31), and the two sliding plates (72) are respectively in sliding connection with the two T-shaped sliding grooves (34).

6. The large casting shrinkage-porosity prevention device according to claim 5, wherein: two slide (72) adjacent sides all are connected with dog (73).

7. The large casting shrinkage-porosity prevention device according to claim 4, wherein: cooling channel (33) have been seted up to pouring table (31) inside, be connected with between liquid reserve tank (81) and cooling channel (33) and return liquid pipe (84), circulative cooling pump (82) and cooling channel (33) other end are connected with drain pipe (83), be connected with communicating pipe between circulative cooling pump (82) and liquid reserve tank (81).