A hot core core making method and core making machine

Abstract

The invention discloses a hot core making method and a hot core making machine. According to the hot core making method, the initial position and the end position of an upper core box are at the central position below a core ejection rod of a core ejection mechanism; according to one scheme, in a lifting-type machine model, a lower moving trolley drives a lower core box to move to a lower mold opening position; an upper moving trolley drives a sand shooting mechanism to a sand shooting position and drives the core ejection mechanism to a core ejection transition position synchronously; when a core is ejected by the core ejection mechanism, a lifting worktable drives the lower core box to move downwards to the lower mold opening position; a lifting mechanism delays and drives the upper core box to move downwards to the central position synchronously; in the hot core making machine, central position space and mold opening space are formed between the lower end of the core ejection rod of the core ejection mechanism and the upper end surface of the lower core box in sequence from top to bottom, so that space circulating time is shortened, the waste of equipment is reduced, and the core making efficiency is improved.

Description

technical field [0001] The invention relates to a core-making method and a core-making machine, in particular to a hot-core core-making method and a core-making machine. Background technique [0002] The core making machine (core shooting machine) mainly includes: the lower mobile trolley, the lower core box fixed on the lower mobile trolley, the upper mobile trolley, the sand shooting mechanism and core ejector mechanism fixed on the upper mobile trolley, the lifting mechanism and the The upper core box on the lifting mechanism, for different core making machine models, generally adopts a lifting workbench, through the lifting action of this mechanism to complete the core making production process, we call it the workbench lifting type, or use the upper part Press the pressing head tightly, and complete the core-making production process through the lifting action of this mechanism, which is called the upper pressing type. [0003] For the above two conventional models, in...

AI Technical Summary

Problems solved by technology

[0006] The actions of each mechanism of the existing core making machine follow a single-step sequential action flow, and the sum of the running time of each action becomes the total running time of the equipment, which has a lot of empty cycle time, which cannot make full use of the core making machine and reduces the production cost. core efficiency

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