Hot core box core shooter

Abstract

The invention discloses a hot core box core shooting machine, which comprises a frame, a sand-out mechanism arranged on the top of the frame, and a sand-shooting cylinder whose tail is connected to a sand-out port at the lower end of the sand-out mechanism for falling sand. , a mold clamping mechanism for clamping the hot core box mold, a core pulling mechanism fixedly arranged under the hot core box mold for ejecting the forming sand core, and the sand injection port of the sand shooting cylinder can be up and down Reciprocating movement, protruding into or out of the mold cavity of the hot core box mold, the support structure does not need to bear the weight of the base, so it does not need to be made of high-strength materials or designed to be very thick, which has the advantages of saving costs and improving production efficiency .

Description

technical field

[0001] The invention relates to a hot core box core shooter, which belongs to the technical field of core shooters. Background technique

[0002] In foundry production, the requirements for sand cores are very high. The traditional core making method is to make cores by mixing raw sand and synthetic grease at room temperature or by mixing glass water glue and raw sand and blowing carbon dioxide into the core to harden. Place cold iron by hand. With the improvement of the market's requirements for product quality and the continuous improvement of the production process, the coated sand hot box core making process has been widely used. The hot box core making means that the mold is equipped with electric heating tubes or other heating devices. When the sand material is blown into the mold cavity, it is heated by the electric heating tube and hardened and compacted into a core under the high pressure provided by the sand cylinder. The sand core must have suffi...

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