Sand mixer

Abstract

The invention discloses a sand mixer and belongs to the field of casting. The sand mixer comprises a sand warehouse. A discharging opening of the sand warehouse is communicated with a big-arm conveying mechanism. An inlet of the big-arm conveying mechanism is communicated with a storage box. An output opening of the big-arm conveying mechanism is communicated with a small-arm swing mechanism. An outlet of the small-arm swing mechanism is communicated with a sand mixing and stirring cage. An outlet of the sand mixing and stirring cage is communicated with an unloading tank through a sand discharging valve. The bottom end of the unloading tank is provided with a discharging valve. The sand mixer is small in size, original sand, resin and a curing agent are mixed in the sand mixing and stirring cage, sand premixing is carried out in the big-arm conveying mechanism and the small-arm swing mechanism, the sand mixing effect is guaranteed, and the sand mixing time is saved, so that the problems that the occupied area is large due to the large size of an existing sand mixer, and the sand mixing efficiency is lower due to the long sand mixing time of the existing sand mixer in the prior art are solved, the size of the sand mixer is further reduced, the sand mixing efficiency of the sand mixer is improved, and the manufacturing cost of the sand mixer is saved.

Description

technical field [0001] The invention relates to equipment in the field of casting, in particular to a sand mixer. Background technique [0002] The sand mixer is a foundry equipment used to mix molding sand or core sand. The sand mixer can evenly mix the various components in the molding sand and effectively coat the binder on the surface of the sand. [0003] The sand mixers in the prior art are generally large in size and require a long time for sand mixing, which not only increases the floor area, but also reduces the sand mixing efficiency. Contents of the invention [0004] In view of the above existing problems, the present invention provides a sand mixer to overcome the problem that the sand mixer in the prior art has a large volume resulting in a large footprint, and also overcomes the sand mixing time of the sand mixer in the prior art. Longer length leads to the problem of lower sand mixing efficiency, which not only reduces the volume of the sand mixer, but als...

AI Technical Summary

Problems solved by technology

[0004] In view of the above existing problems, the present invention provides a sand mixer to overcome the problem that the sand mixer in the prior art has a large volume resulting in a large footprint, and also overcomes the sand mixing time of the sand mixer in the prior art. Longer length leads to the problem of low sand mixing efficiency, which not only reduces the volume of the sand mixer, but also improves the sand mixing efficiency of the sand mixer, and saves the production cost of the sand mixer

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