Sand box returning mechanism, returning method using same and vacuum casting line

Abstract

The invention discloses a sand box returning mechanism used for a vacuum casting line system and comprising a sand box returning line, a sand box hoisting bracket and a roller way, wherein the rear end of the sand box returning line is connected with a casting mechanism of the casting line system so that a sand box can be conveniently returned to the casting mechanism; the sand box hoisting bracket is provided with a vertically arranged guide rod and a clamping component moving upwards and downwards along the guide rod. At least one pair of clamping paws of the clamping component are respectively hinged with a clamping component body so as to facilitate the opening and closing operation. The front end of the roller way is positioned above a supporting plate returning shuttle car, and the rear end thereof is positioned above the front end of the sand box returning line. The roller way passes through the upper side of a sand dropping mechanism so as to facilitate the directional walk ofthe sand box hoisting bracket among the supporting plate returning shuttle car, the sand dropping mechanism and the sand box returning line, thereby reliably guaranteeing an operator to keep away froman area with high temperature, high silicon dust content and high danger. Based on the sand box returning mechanism, the invention also provides a returning method using the sand box returning mechanism and a vacuum casting line with the sand box returning mechanism.

Description

technical field [0001] The invention relates to vacuum-sealed molding process equipment, in particular to a sand box return mechanism, a return method using the mechanism and a vacuum-sealed molding line. Background technique [0002] Vacuum sealing molding is a physical molding method, using a plastic film to seal the sand box and relying on a vacuum pump to pump out the air in the mold, causing a pressure difference inside and outside the mold to make the dry sand compact to form the required cavity; referred to as V method molding. [0003] At present, the existing V-method molding lines are all open-loop systems, that is, they all start from the molding mechanism A and end at the shakeout mechanism D, and the molding mechanism and the shakeout mechanism are disconnected; figure 1 As shown, this figure is a schematic structural diagram of the existing V-method molding line system, which includes a molding mechanism A, a box closing mechanism B, a mold conveying mechanism ...

AI Technical Summary

Problems solved by technology

[0007] Third, the hanging of the sand box is done manually. When the molding line is running continuously, the operator has to complete the hanging operation and also shuttles between the molding mechanism and the sand shakeout mechanism continuously, and the work intensity is relatively high;

[0008] Fourth, the hanging operation itself has certain dangers, and safety accidents are more likely to occur when working in a harsh environment, and there are great unsafe hidden dangers in the casting production process

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