Sand feeding device of full automatic sand casting machine for clay sand

Abstract

The invention discloses a sand feeding device of a full automatic sand casting machine for clay sand. The device comprises a bottom plate, wherein a first sand feeding box communicates with the uppersurface of the bottom plate, a first motor is mounted on one side of the first sand feeding box, an output shaft of the first motor penetrates the inner side wall of the first sand feeding box, a first connecting rod is rotatably connected to the inner side wall of the first sand feeding box through a bearing, stirring blades are uniformly and fixedly connected to the outer side wall of the firstconnecting rod, a first limiting groove is formed in the inner side wall of the first limiting block, a first limiting plate is clamped to the inner side wall of the first limiting groove, and a thirdlimiting groove is formed in the inner side wall of the first limiting plate. A user can pour a sand material into a second sand feeding box and starts a vibrating motor at the same time. The vibrating motor is started to drive a screen to vibrate so as to screen the sand material in the second sand feeding box, so that a phenomenon of poor sand blasting effect as large particles enter the casting machine is avoided.

Description

technical field [0001] The invention relates to the technical field of sand casting, in particular to a sand feeding device for a clay sand automatic sand casting machine. Background technique [0002] Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. 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 basic process in casting production. The molding machine will be used in the process. Sand casting is an important operation link in the casting molding process. In modern actual production, sand casting can be completed by sand molding machine. The main operation process of the molding machine is mold fixing, sealing sand blasting, compacting sand mold, The withdrawal of the mold and the introduction of the sand mold are fully automatic for time...

AI Technical Summary

Problems solved by technology

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 basic process in casting production. The molding machine will be used in the process. Sand casting is an important operation link in the casting molding process. In modern actual production, sand casting can be completed by sand molding machine. The main operation process of the molding machine is mold fixing, sealing sand blasting, compacting sand mold, The withdrawal of the mold and the introduction of the sand mold are fully automatic for time-consuming processing. Sand casting uses sand as the mold material, melts the metal into a liquid, pours it into the mold through the pouring system, and obtains a predetermined shape and size after cooling, solidification, and cleaning. and high-performance castings. In practical applications, the particle size of the molding sand near the mold is relatively high. In order to improve the particle fineness of the molding sand there, it is necessary to screen the molding sand initially put into the flask. The screen with molding sand shakes up and down, left and right, and the fine grained sand falls from the screen into the sand box. The instability of manual operation by workers has a great influence on the uniformity of the particle size of the sand that initially falls into the sand box. And then affect the uniformity of product quality

[0003] China's public authorized invention: CN210254118U discloses a sand tank assembly for clay sand automatic sand casting molding machine. However, there are still certain problems. Although the device can avoid false alarms by blowing the inner wall of the barrel, during the sand loading process of the casting machine, the staff needs to screen the sand first. The sand material after screening has a better effect on sandblasting casting. The device only avoids false alarms, and does not screen the sand material. In the existing sand casting process, the sand material needs to be screened. Manual screening is cumbersome. For this reason, a sand feeding device for clay sand automatic sand casting machines is proposed.

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