On-line core making technology and device

Abstract

The present invention relates to an on-line core making technology. The technology comprises steps of: carrying out sand shooting and curing at a core making position in an upper die and a lower die to form a sand core; removing the sand core from the lower die, leaving the sand core in the upper die and removing the lower die from the core making position; moving a pallet into the core making position, removing the sand core from the upper die and putting the sand core on the pallet; and moving the pallet out of the core making position. An on-line core making device comprises a frame, an upper die, a lower die and a sand shooting air blowing component. The lower die is movably arranged on the frame, and the frame can be movably provided with a plurality of pallets; during core making, the lower die is below the upper die; and during core connection, the pallet is located under the lower die. The invention solves a problem of moving a molded sand core from a core box to the pallet and ensures size precision of the molded sand core and the stability of the sand core, so as to improve size precision, performance and quality of the final casting, simplify system configuration, cancel a handling process from the core box to the pallet achieved by a robot and a spreader or an artificial sling and improve the reliability of the system.

Description

technical field [0001] The invention relates to the field of casting, in particular to an online core-making process and device. Background technique [0002] At present, the core-making process is as follows: inject the molded sand core, place the molded sand core on the conveying pallet by means of robots, spreaders or manual spreaders, and configure the pallet conveying device to complete the sand core alignment. delivery. The core of this technology is to take the core making machine, sand core spreader, pallet and conveying device as a single independent unit, and realize the automation of core making through control technology. [0003] However, the disadvantage of the above technology is that the molding sand core needs to be transported from the core box to the pallet, and there is a secondary positioning deviation of the transported sand core, which affects the precise size of the sand core. For large sand cores and thin-walled molding sand The core will be deform...

AI Technical Summary

Problems solved by technology

[0003]However, the disadvantage of the above technology is that the molded sand core needs to be transported from the core box to the pallet, and the transported sand core has a secondary positioning deviation, which affects the sand core. The precise size of the core, for large sand cores and thin-walled molding sand cores, the sand core will be deformed due to the influence of strength; in addition, from a technical analysis: the surface hardness and sand core strength of the sand cores that have just been shot into molding sand cores are Low, the above technical defects all affect the dimensional accuracy, performance and quality of the final casting

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