Novel sandbox

Abstract

The invention specifically discloses a novel sandbox, which belongs to the technical field of regeneration equipment for casting sand. The novel sandbox comprises an upper box, a lower box and a locking device, wherein each of the upper box and the lower box comprises a first box shell and a second box shell; the first box shells and the second box shells are connected to form an enclosed cube; the central parts of one sides of the second box shells are provided with stop blocks, and the central parts of the stop blocks are provided with open grooves; the edges of the second box shells are provided with rectangular grooves; the edges of the first box shells are provided with rectangular protruding bodies; the locking device comprises an upper locking device and a lower locking device; each of the upper locking device and the lower locking device comprises a rotating shaft and a swiveling cover; the rotating shaft comprises a first rotating shaft and a second rotating shaft, and the ends of the first rotating shaft and the second rotating shaft are threaded; the swiveling cover exerts fixing effect; and one ends of the first rotating shafts are located on the first box shell while the other ends of the first rotating shafts are fastened in the open grooves, thereby realizing the purpose of aligning the upper box with the lower box. The novel sandbox provided by the invention has simple and practical structure and simplifies the processes of sandbox installation and alignment of the upper box with the lower box.

Description

technical field [0001] The invention relates to the technical field of casting equipment, in particular to a novel sand box. Background technique [0002] At present, in casting production, there are usually two ways to combine the upper box and the lower box. One method is to use a crane to lift the upper box, and after manually turning over, the sprue bowl, riser ring, etc. are cultivated, and then Use the closing pin to position the closing box; another common closing method is to turn the upper box over by the manipulator and then close the box directly by mechanically assisted positioning, and then cultivate the sprue bowl, riser ring and other accessories for pouring sand molds. part. [0003] The above two commonly used box closing methods all have different degrees of shortcomings. The first method is low production efficiency and great safety hazards; the upper box is not easy to balance when the box is manually closed, and the inclined box is easy to cause core he...

AI Technical Summary

Problems solved by technology

[0003] The above two commonly used box closing methods all have different degrees of shortcomings. The first method is low production efficiency and great safety hazards; the upper box is not easy to balance when the box is manually closed, and the inclined box is easy to cause core heads (casting sand cores) end) scratches, and in serious cases, the core head will be crushed, resulting in trachoma defects in the casting; the second method is easy to drop the sand in the mold when the sprue bowl and riser ring are solidified after the box is closed. Cleaning, the secondary molding sand pollutes the cavity and causes defects such as sand holes and slag inclusions in castings

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