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A technology of precision casting and mold shell, applied in the field of metallurgy, can solve problems such as high personnel requirements and unfavorable product uniformity, and achieve the effect of improving uniformity, shortening production cycle, and improving fast and accurate positioning.
Active Publication Date: 2021-03-26
SHANGHAI LIGOU SENSOR SCI & TECH
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In addition, in the existing technology, parameters such as lifting speed, lifting position, and reciprocating time are often set through the experience of operators, which requires high personnel, and there is no unified quantification of parameters such as the lifting speed, lifting position, and reciprocating time of smelting material mold shells. standard, which is not conducive to improving product uniformity
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no. 1 example ；
[0073] like figure 1 combine figure 2 Shown, the present invention a kind of vacuum investment casting furnace formwork hoisting device, comprises:
[0074] Fixing piece 1, which passes through and is fixed on the bottom wall of the ingot cavity;
[0075] Main shaft 2, one end of which penetrates into the fixed part 1, and the other end is located outside the ingot cavity, which can move vertically in the fixed part 1 deep into or withdrawn from the ingot cavity;
[0076] The first sealing assembly is located in the ingot cavity and arranged between the fixed part 1 and the main shaft 2;
[0077] The second sealing assembly, which is located in the ingot cavity, is fixed between the fixing part 1 and the high temperature resistant telescopic protective cover 21;
[0078] Support frame 7, which is located outside the ingot cavity, is arranged in a vertical direction, and its upper part is fixed on the fixture 1;
[0079] The power source 14 is fixed on the top of the suppo...
no. 2 example ；
[0091] continue to refer figure 1 combine figure 2 Shown, the present invention a kind of vacuum investment casting furnace formwork hoisting device, comprises:
[0092] Fixing piece 1, which passes through and is fixed on the bottom wall of the ingot cavity;
[0093] Main shaft 2, one end of which penetrates into the fixed part 1, and the other end is located outside the ingot cavity, which can move vertically in the fixed part 1 deep into or withdrawn from the ingot cavity;
[0094] The first sealing assembly is located in the ingot cavity and is arranged between the fixed part 1 and the main shaft 2, including the sealing ring positioning gasket 3 fixed in the fixed part 1 and the shaft sealing ring 4, and sleeved on the fixed part 1 The dust-proof sealing ring 18 of two ports, the dust-proof ring retaining ring 6 covers are contained on the dust-proof sealing ring 18;
[0095] The second sealing assembly, which is located in the ingot cavity, is fixed between the fixed...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention discloses a vacuum precision casting furnace formwork lifting device. A fixing piece is fixed to the bottom wall of an ingot casting cavity in a penetrating mode, a main shaft can vertically move in the fixing piece, a first sealing assembly is arranged between the fixing piece and the main shaft, a second sealing assembly is fixed between the fixing piece and a high-temperature-resistant telescopic protective cover, and the upper portion of a supporting frame is fixed to the fixing piece; a power source is fixed to the upper portion of the supporting frame, a first fixing support is fixed to the supporting frame and used for being connected with the main shaft and a linear motion mechanism, a second fixing support is fixed to the supporting frame, an upper limiting mechanismis located outside the ingot casting cavity and fixed to the fixing piece, and a sensor is located outside the ingot casting cavity and fixed to the fixing piece; a telescopic dustproof cover sleevesthe portion, between the fixing piece and the second fixing support, of the main shaft; and a high-temperature-resistant telescopic protective cover sleeves the part, located in the ingot casting cavity, of the fixing piece, a bearing part is fixedly connected with the top end of the spindle, and a controller is connected with the power source and the sensor.
Description
technical field [0001] The invention relates to the field of metallurgy, in particular to a mold shell lifting device for a vacuum precision casting furnace. Background technique [0002] Vacuum precision casting furnace is a process test instrument used in the fields of material science and metallurgical engineering technology. Vacuum precision casting furnaces mostly adopt a vertical two-chamber or vertical three-chamber design. Both melting and casting are carried out in a vacuum atmosphere. The equipment can realize continuous casting of equiaxed, directional and single crystal castings. Taking the vertical two-chamber as an example, the ingot casting chamber is at the bottom and the melting chamber is at the top. Chinese patent 2018100470611 discloses a vacuum precision casting furnace with a vertical two-chamber layout. The mold shell is driven by the motor through the ball screw through the mold shell bracket, and reciprocates up and down in the ingot cavity, and is...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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