Combined sand mold

Abstract

The invention provides a combined sand mold which is characterized in that sand mold column assemblies and sand mold core assemblies are provided with movable interconnection mechanisms, and the sand mold column assemblies, the sand mold core assemblies and the sand mold column assemblies can be directly and movably connected or movably connected through interconnection adapter plates. The top end screw hole of each sand mold column assembly and the top end screw hole of each sand mold core assembly can be fixed in the positioning plate through screws and are combined to form a mold prototype; the mold frame is sleeved with the mold blank, lining plates are arranged in the longitudinal direction and the transverse direction, the mold blank is fixed through screws, and a multi-fixed stable mold blank is formed; secondly, if the screws are screwed off and the positioning plate is taken off, a normal mold prototype fixed by the mold frame is formed; thirdly, if accessories such as the mold frame and the lining plate are taken off, a light and handy mold prototype fixed by the positioning plate is formed; and fourthly, various modes can be easily changed at any time, and matched sand boxes of the mold can be changed by replacing the mold frame.

Description

technical field [0001] The invention relates to a large and medium-sized sand mold. Background technique [0002] Sand casting is a widely used casting form. Most non-ferrous alloy castings such as steel, iron, bronze, brass, and aluminum can be obtained by sand casting. Sand mold casting first uses sand to make the casting cavity. When sand is being molded, it is necessary to put the casting mold in the sand, and then fill the sand around the casting mold. After the casting mold is taken out of the box, the sand casting cavity is formed; The casting holes and vent holes of the casting cavity, and the synthetic gating system; finally, after pouring the metal liquid in the casting cavity, keep it for an appropriate time until the metal is solidified and the casting is taken out. [0003] Since the molding materials used in sand casting are cheap and easy to obtain, they can be reused, and the molding is easy to manufacture. They can be adapted to single-piece production, bat...

AI Technical Summary

Problems solved by technology

[0006] In view of the above problems, the present invention provides a combined sand mold, which can be combined into various complex shapes or precise sand molds through filling and trimming through the flexible connection of various sand mold column components or sand mold core components; It solves the constraints of the existing combined sand mold on the shape or fineness of the mold core; and uses the easy-to-change characteristics of the frame mode of the sand mold, so that the sand mold can be easily matched with various sand boxes, and the utilization of the existing sand boxes is improved. rate; it can also disassemble and reorganize the scrapped combined mold to improve its utilization rate

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