Rotatable cooling and cleaning mechanism for shooting nozzle

Abstract

The invention belongs to the field of parts of a molding machine for manufacturing casting molds or mold cores, and discloses a rotatable cooling and cleaning mechanism of a shooting nozzle. A main body of the mechanism is positioned below a guide rail of the shooting nozzle of a core shooter, and comprises an overturning bracket which is hinged to the core shooter, and the overturning of the overturning bracket is realized by the extension of an overturning power device which is fixed on the core shooter; a jacking device is fixed in the overturning bracket, and an output shaft of the jacking device is connected with a sand receiving disc which axially moves along with the extension of the output shaft of the jacking device; an impact penetrating nail which can extend into the shooting nozzle of the core shooter is fixed in a disc of the sand receiving disc. The mechanism disclosed by the invention enables the traditional manner of manually cleaning deposited sand to be changed, and the operation is more automatic and safer.

Description

technical field [0001] The invention belongs to the field of components of molding machines for producing molds or cores. Background technique [0002] In the casting production process, the sand core is often prepared by a sand shooting device, which injects the core sand into the core box at high speed, and then forms the core sand through compact molding. The sand shooting mechanism generally includes a sand storage cylinder, a shooting head, a sand core mold, and a heating mechanism. Injection after heating, but now there is a heated sand core mold, which is to automatically heat the mold to complete the solidification of the sand core after the sand injection is completed. [0003] The disadvantages of the above-mentioned sand-shooting mechanism are: ①The core-making process of the sand-shooting mechanism is a discontinuous operation. After the nozzle finishes shooting sand, the sand core mold is heated and then the core sand is heated and solidified. The whole nozzle ...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the above-mentioned sand-shooting mechanism are: ①The core-making process of the sand-shooting mechanism is a discontinuous operation. After the nozzle finishes shooting sand, the sand core mold is heated and then the core sand is heated and solidified. The whole nozzle is in a high-temperature environment. At this time, the core sand (especially the inorganic coated sand) remaining on the nozzle will crust and solidify after contacting with carbon dioxide in the air. The higher the temperature, the shorter the curing time, and the final cured core sand will be Blocking the nozzle will affect the next sand shooting operation. Workers can only dredge it manually, which is heavy workload, inefficient and easy to be burned; ②In addition, manual dredging of the nozzle will cause the core sand to fly randomly and affect the environment in the factory

Images