The core shooting machine complete sand shooting step in the foundry sand core process can be divided into three stages: before sand-blasting, free sand-blasting and sand compaction are compacted. The sand core produced by the sand core shooting method of the core shooting machine has good quality, and the process is easy to be automated. It has the advantages of a short production cycle, good quality, low cost, low noise, etc., so it has been widely used.
Next, Delin Machinery will share with you a detailed description of the core shooting machine complete sand shooting method and sand shooting process in the core-shooting core process.
The working principle of the core shooting machine is to inject the molding sand into the core box through compressed air, and the molding sand hardens in the core box and forms the shape of the sand core.
The hot core box core shooting machine complete sand shooting is very fast. Sand filling and compaction are completed at the same time, and it is immediately hardened in the hot core box. Starting from the sand shooting, compressed air enters the sand shooting barrel and the core box is filled, as long as 0.3—o.5s. A core making cycle takes only ten seconds to tens of seconds to produce sand cores for casting.
The core of the core shooting machine has good quality: it can shoot any complex degree of the sand core, and the size and surface are smooth, which can reduce the processing allowance of castings.
The core shooting machine complete sand shooting in sand core process is divided into three stages:
First stage: early shot
After the rapid air inlet valve is opened, the molding sand cannot be ejected at the initial stage of the pressure increase in the sand-blasting cylinder, and the molding sand can only be ejected from the perforation when the air pressure is increased to the extent.
Second stage: a free shot
The sand particles are pushed by the airflow and are ejected from the perforation into the core box.
Three stages: compaction of compacted sand
After the core box is almost full, the core shooting machine complete sand shooting stage ends the invitation, however, the movement of the core sand into the core box did not stop. The core sand continued to fill the core box under the impulse of the air pressure in the sandblasting head and the air pressure above the core box. The sparse gas sand flow in the perforation was original. At this time, it becomes a dense stream of sand balls pushing against each other. The molding sand pushed in after this part is called the sand compaction, which can continue to improve the compactness of the molding sand in the upper part of the core box.
The core shooting machine complete sand shooting requires very little time and can produce sand cores of various complexity. Many manufacturers will choose to use the core shooting machine to manufacture sand cores.
Because the sand core produced by the core shooting machine has the characteristics of a precise scale and smooth surface, the production efficiency of the core shooting machine is high. The core shooting machine has not disappointed the manufacturers’ trust in it, and the core shooting technology has also been developing.
Delin Machinery specializes in R&D, design, production and sales of core shooting machines. Customers are welcome to come to consult. If you want to know more details like are we manufacturers? machine function? support video and more pictures? price list? how to buy? Welcome to Call / WhatsApp or send us Email about any question on the machine, please contact us >>>Tel / WhatsApp / WeChat: +86 13960339790, Email: [email protected]