Sand scraping mechanism used for casting of pig iron casting

Abstract

The invention discloses a sand scraping mechanism used for casting of a pig iron casting. The sand scraping mechanism comprises a chain plate erected by two gear cylinders; each gear cylinder consistsof a cylinder body and gear bars; the chain plate consists of link units; each link unit includes straight plates and a connecting shaft, wherein the straight plates are symmetrically connected in apierced manner; every two adjacent link units are connected in series by rivets; the connecting shafts are correspondingly provided with a sanding pressure roller, a hairbrush roller and a rectangularbar; each gear cylinder is sleeved and connected with a driving shaft and a shaft collar; each shaft collar is fixedly connected with a lifting rod; the bottom part of each lifting rod is fixedly connected with a triangular support and universal wheels; each driving shaft is connected with a motor; and a sand mould casting frame body is located right below the chain plate. According to the sand scraping mechanism, the sanding pressure roller, the hairbrush roller and the rectangular bar are loaded by the chain plate, and the advantages of three treatment modes of deflecting plate drag scraping, rolling brush head sweeping and rolling drum compaction are combined, so that the flat state of the surface of casting sand is rapidly realized; moreover, the whole sand scraping process is relatively simple and labor-saving; the sand scraping mechanism is suitable for pipelined scraping treatment; the casting time is shortened; formation of a uniform and normal casting standard is facilitated;and the quality of the casting is improved.

Description

technical field [0001] The invention relates to the technical field of casting of pig iron castings, in particular to a sand scraping mechanism for casting of pig iron castings. Background technique [0002] Sand casting refers to the casting method that produces castings in sand molds. Because the molding materials used in sand casting are cheap and easy to obtain, and the casting mold is easy to manufacture, it can be adapted to single-piece production, batch production and mass production of castings. For a long time, it has been the main process in the production of pig iron castings. [0003] When casting, it is generally necessary to shake the sand mold first, and then use a scraper to scrape off the excess sand on the surface of the sand mold, so that the surface of the sand mold is flush with the frame of the frame. The sand scraping process in the existing casting technology is generally manual operation, which is time-consuming. Effortless, in need of improvement....

AI Technical Summary

Problems solved by technology

[0003] When casting, it is generally necessary to shake the sand mold first, and then use a scraper to scrape off the excess sand on the surface of the sand mold, so that the surface of the sand mold is flush with the frame of the frame. The sand scraping process in the existing casting technology is generally manual operation, which is time-consuming. Laborious and in need of improvement

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