Sand shooting mechanism for compacting moulding sand

Abstract

The invention relates to a compacting mechanism and discloses a sand shooting mechanism for compacting moulding sand. The compacting mechanism comprises a compacting barrel, wherein sand shooting holes are distributed in the periphery of the compacting barrel; ventilating cavities covering the sand shooting holes are connected to the outside of the compacting barrel; a gas storage tank is arranged on one side of the compacting barrel; the gas storage tank is communicated with the ventilating cavity by a pipeline; a core box which is communicated with the compacting barrel is arranged below the compacting barrel; vent holes are formed in the compacting barrel in the communicating part of the compacting barrel and the core box; a close cover is connected inside the compacting barrel in a sliding way; the close cover is meshed with a gear; the gear is meshed with a rack; the pipeline is provided with a communicating cavity; and the bottom of the rack is connected in the communicating cavity in a sliding way. Compared with the prior art, the compacting mechanism has the advantages that the sliding of the close cover is only controlled so as to complete operation; the close cover is opened or closed and an outlet of the gas storage tank in the pipeline is in linkage to open or close, so that the operation steps are reduced and the work efficiency is improved.

Description

technical field [0001] The invention relates to a compacting mechanism, in particular to a sand shooting mechanism for compacted sand. Background technique [0002] The mechanization of molding and core making is at the heart of the simplification of foundry production. It directly reflects the production level of the foundry. The molding and core-making process and its machinery depend on the properties of the molding sand or core sand, the molding and core-making process, and the equipment used. For the widely used clay sand, "box molding" is often used. The process includes filling, compaction, mold removal, core setting, box closing, and transportation of sand molds and sand boxes. Different types of molding equipment have different operating methods, but the most basic processes include filling, compaction and mold removal, among which compaction is the most important. [0003] In recent years, the molding equipment has developed greatly. The shock molding machine co...

AI Technical Summary

Problems solved by technology

[0005] However, during the compacting process, the switch of the cover and the switch of the valve need to be controlled separately. When the cover needs to be opened, the valve must be closed first. When the valve needs to be opened, the cover must be closed first. There are many operating steps. Reduced work efficiency

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