Continuous production type precoated sand core shooting machine

Abstract

The invention discloses a continuous production type precoated sand core shooting machine. The continuous production type precoated sand core shooting machine comprises a machine frame, a sand shooting assembly and a mold assembly, wherein the machine frame comprises a fixing base, side supporting plates and guide columns, the side supporting plates are symmetrically and fixedly connected to the left side and the right side of the fixing base, the guide columns are fixedly connected between the side supporting plates, material carrying plates and the sand shooting assembly are fixedly connected to the surface of the fixing base, the material carrying plates are symmetrically distributed above the sand shooting assembly, the sand shooting assembly comprises a sand storage box, a sand shooting air pump and a material conveying pipe, the side wall of the sand storage box is fixedly connected with the sand shooting air pump, the material conveying pipe is vertically and fixedly connected in the sand storage box, the mold assembly is located above the sand shooting assembly, and the mold assembly comprises movable mold plates, fixed mold plates and an air cylinder. According to the continuous production type precoated sand core shooting machine, the two sets of molds cooperate with the air cylinder for movement, so that the molds on the two sides perform production alternately, therefore, on one hand, continuous production can be performed without stopping conveniently, on the other hand, the rhythm of production is conformed, workers can take materials in production gaps conveniently, and the safety during material taking is improved.

Description

technical field [0001] The invention relates to the technical field of coated sand production equipment, in particular to a continuous production coated sand core shooting machine. Background technique [0002] The core shooting machine uses coated sand to make cores, and is suitable for both hot core boxes and cold core boxes. The core shooting machine is characterized by the application of two guide pillars, the vertical parting of the mold opening and closing, and the installation of two different molds at the same time. The fixed mold can be installed on both sides of the middle fixing frame, and the mold can be opened and closed left and right (equivalent to a double mold frame). Coated sand refers to the molding sand or core sand whose sand surface is covered with a layer of solid resin film before molding. There are two coating processes: cold method and hot method: the cold method uses ethanol to dissolve the resin and add it during the sand mixing process. Urotropi...

AI Technical Summary

Problems solved by technology

[0003] At present, when the coated sand core shooting machine in the market is working, it usually only uses one set of molds for production. When the product is taken out, the mold is always kept open, and the next production can only be carried out after the takeout is completed, causing production Interruption, and there are safety hazards in taking materials in the mold, the production rhythm is not reasonable enough, and the production efficiency of the coated sand core shooting machine is reduced

Images