Quantitative crude sand loading device for core making machine

Abstract

The invention relates to the technical field of core making machines, and discloses a quantitative crude sand loading device for a core making machine. The quantitative crude sand loading device comprises a loading barrel, wherein a rotating barrel is rotatably connected inside the loading barrel; six loading slots which are arranged in the form of a ring are formed outside the rotating barrel; inner walls of opposite sides of the six loading slots are inserted with rotary rods; opposite sides of the six rotary rods are in sleeve connection with movable barrels; stirring rods are fixedly connected outside the six rotary rods; active wheels are rotatably connected inside the rotating barrel; six extruding rods which are arranged in the form of the ring are inserted into the outside of the active wheels; and fixing columns are arranged inside the active wheels. The active wheels drive the extruding rods to be in contact with arc-shaped bulges on the bottoms of the fixing columns, so that the movable barrels are extruded downwards; and when the movable barrels move downwards, a threaded slot is matched with threads for driving the rotary rod and the stirring rod to stir crude sand in the loading slot, so that the effect of quickly separating the crude sand in the loading slots is achieved, and crude sand residues in the loading slots are avoided.

Description

technical field [0001] The invention relates to the technical field of core making machines, in particular to a raw sand quantitative feeding device for core making machines. Background technique [0002] Core making machine is the collective name of core shooting machine and shell core machine. It is a device that uses hot core box technology to make coated sand shell core. Hardening, reducing labor intensity, flexible and light operation, easy to master. [0003] Existing core making machines do not have the function of quantitative sand filling when loading materials. In order to ensure sufficient raw sand, excessive feeding is generally performed, which easily causes raw sand to spill, which not only causes waste of raw sand, but also affects the working environment. It is easy to clean up later, so we propose a raw sand quantitative feeding device for core making machines. Contents of the invention [0004] (1) Solved technical problems [0005] Aiming at the defic...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a raw sand quantitative feeding device for a core making machine, which has the advantages of quantitative feeding and reducing unnecessary waste of raw sand, and solves the problem that the existing core making machine has to ensure that the raw sand Sufficient, generally excessive feeding, easy to cause raw sand to spill, not only cause waste of raw sand, but also affect the working environment, and it is not easy to clean up later

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