Core ejecting device

Abstract

The invention discloses a core ejecting device which comprises a frame. A core ejecting oil cylinder is arranged at the bottom part of the frame; a workbench is arranged above the core ejecting oil cylinder; and the workbench is connected with a piston rod of the core ejecting oil cylinder. When the core ejecting device is in use, the workbench is driven by the core ejecting oil cylinder to move upwards, so that the workbench is propped against a sand core of a sand box to eject out the sand core, and the core ejecting device is very convenient to use; a lifting oil cylinder is also arranged above the workbench; and the core ejecting capacity of the workbench can be increased through the lifting oil cylinder so as to be convenient for pushing out the sand core with larger volume. The core ejecting device has a simple structure, is convenient to use and can accelerate the ejecting-out speed of the sand core and improve the production efficiency; and moreover, with the adoption of the core ejecting device, the ejecting-out automation of the sand core from the core box can be realized, no manual operation is required, the labor is saved, and the core, in particular to the sand core with larger volume is more conveniently to eject out, therefore, the demands of modern production can be effectively met.

Description

technical field [0001] The invention relates to the field of casting, in particular to a top core device used on an automatic molding line. Background technique [0002] In the modern casting production process, in order to improve the casting efficiency and meet the requirements of modern production, most of the cores used in the casting process are manufactured by hot core box core shooters, which are widely used in the foundry machinery industry. The core made by the hot core box core shooter has the advantages of accurate size and smooth surface, so it is widely used in many foundry companies. [0003] In foundry production, during the core making process of the hot core box core shooter, many core boxes need to be ejected from the upper core box after the completion of the core box. At present, the operation of ejecting the sand core from the upper core box is mainly It is carried out manually, the speed of sand core ejection is slow and the production efficiency is lo...

AI Technical Summary

Problems solved by technology

[0003] In foundry production, during the core making process of the hot core box core shooter, many core boxes need to be ejected from the upper core box after the completion of the core box. At present, the operation of ejecting the sand core from the upper core box is mainly It is carried out by hand, the speed of sand core ejection is slow, and the production efficiency is low. The method of manual ejection of sand core has a large workload and requires a lot of labor every time.

Moreover, it is easy to break the sand core by manually pushing the sand core, resulting in scrapping, affecting work efficiency and output of finished products

Therefore, it is difficult to meet the requirements of modern production by manually pushing sand cores. Therefore, a special core pushing device must be designed to meet the requirements of modern production.

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