What is a core shooting machine and what is its concept?

The injection molding machine uses compressed air to evenly inject molding sand into the sand box for pre-compaction, and then pressurizes it. Commonly used are vertical parting boxless injection molding machine and horizontal parting boxless injection molding machine. The vertical parting boxless injection molding machine does not need sand box molding, and the molding sand is directly injected into the molding room with the template. The sand mold has high dimensional accuracy, and there are cavities on both sides of the sand box, which has high productivity, but it is difficult to core out and the quality of the sand is strict. The horizontal parting, demoulding and injection molding machine adopts sand box modeling. After the sand mold is made, it is easy to unload the core and the productivity is high.

Core shooting machine is made of coated sand, which is suitable for hot core box and cold core box. The core shooting machine is characterized by using two guide posts, vertically opening and closing the mold and installing two different molds at the same time. The fixed frame in the middle can be equipped with fixed molds on both sides, and the molds can be opened and closed left and right (equivalent to a double-mode frame). Core shooting machine is widely used in foundry industry, and the core made by core shooting machine has accurate size and smooth surface. The working principle of the core shooting machine is to shoot the core sand mixture with liquid or solid thermosetting resin as binder into a heated core box, where the core is preheated and quickly hardened to a certain thickness (about 5 ~ 10 mm), and then taken out to form a high-quality core product with smooth surface and accurate size.

In recent years, core shooting machine has been widely used. Because of the use of core shooting machine for modeling, the high salary of modelers can be saved. Because multi-box stacked pouring can also reduce the waste of pouring risers, the coated sand after pouring has good collapsibility and is beneficial to sand cleaning. The core shooting machine has high production efficiency and accurate sand mold size, which can appropriately reduce the processing capacity; Simple operation and high casting yield. More foundries prefer to use core shooting machine for modeling.