High-energy riser bush structure

Abstract

The invention discloses a high-energy riser bush structure which comprises a riser bush shell. The top end of the riser bush shell is provided with a barrel, the top end of an inner cavity of the barrel is provided with a supporting base, fixed bases are installed on the left side and the right side of the top end of the inner wall of the barrel, the fixed base is connected with the supporting base through a supporting rod, the bottom end of the supporting base is provided with a cylinder body, the upper end and the lower end of the inner wall of the cylinder body are provided with an upper plug plate and a lower plug plate correspondingly, a piston plate is installed in an inner cavity of the cylinder body, the piston plate is connected with the upper plug plate through a reset spring, the bottom end of the inner wall of the barrel is provided with a baffle, the inner wall of the baffle is provided with a hollow barrel, and the upper end and the lower end of the inner wall of the hollow barrel are provided with an upper clamping base and a lower clamping base correspondingly. According to the high-energy riser bush structure, by means of the cooperation of the cylinder body, the piston plate and a sealing plate, the heat insulation effect on the riser bush shell is improved, feeding time is prolonged, and the casting appearance quality is improved.

Description

technical field [0001] The invention relates to the technical field of riser sleeves for casting molds, in particular to a high-energy riser sleeve structure. Background technique [0002] The riser is a cavity set in the casting mold to store the molten metal for casting feeding during the casting process, and has the functions of exhaust and slag collection. In the actual production process, in order to improve the process yield of castings, it is usually used in The riser is provided with a thermal riser sleeve or a heating riser sleeve. When the fluorine content in it accumulates to a certain amount in the sand system, it will pollute the sand system and cause fish-eye-shaped pore defects unique to the use of heating riser sleeves. It is called horseshoe-shaped pore defect, which affects the appearance quality of castings. For example, the patent No. 201120111695.2 includes a jacket in contact with the sand system and a heating sleeve fixed in the jacket containing high-...

AI Technical Summary

Problems solved by technology

[0002] The riser is a cavity set in the casting mold to store the molten metal for casting feeding during the casting process, and has the functions of exhaust and slag collection. In the actual production process, in order to improve the process yield of castings, it is usually used in The riser is provided with a thermal riser sleeve or a heating riser sleeve. When the fluorine content in it accumulates to a certain amount in the sand system, it will pollute the sand system and cause fish-eye-shaped pore defects unique to the use of heating riser sleeves. It is called horseshoe-shaped pore defect, which affects the appearance quality of castings. For example, the patent No. 201120111695.2 includes a jacket in contact with the sand system and a heating sleeve fixed in the jacket containing high-heating materials. Although this patent reduces the quality of castings to a certain extent The manufacturing cost is low, but the thermal insulation is poor, which shortens the feeding time and affects the appearance quality of castings

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