Rotational moulding preparation process of air mover shell

Abstract

The invention discloses a rotational moulding preparation process of an air mover shell. The rotational moulding preparation process comprises the following steps: S1, raw material particles are ground, and raw material powder is obtained; S2, the raw material powder, color powder and waste with the same color are all stirred, and mixed powder is obtained; S3, the mixed powder is weighed and poured into a designated lower mould; S4, the mould is placed on a rotating frame, and the rotating frame is conveyed into an oven; S5, the mould is heated, meanwhile, the rotating frame drives the mould to rotate, and the mould also rotates along the axis of the mould; S6, after the mould is baked in the oven for 1300 s, the rotating frame is conveyed out from the oven; S7, the outer surface of the mould is rapidly cooled through a coolant; and S8, the mould is opened, and a product is taken out from the mould. After baking in the oven is completed, the mould is rapidly cooled through the coolant,thus the mould is shrunk, but the product is still in an expansion state, thus the mould and the product generate relative displacement and then are easy to separate, and burrs are not prone to beinggenerated.

Description

technical field [0001] The invention relates to the field of rotomolding, in particular to a rotomolding preparation process for a floor blower shell. Background technique [0002] Rotational molding, also known as rotational molding, rotary molding, rotary molding, etc., is a hollow molding method for thermoplastics. The method is to add plastic raw materials into the mold first, then the mold is continuously rotated along two vertical axes and heated, and the plastic raw materials in the mold are gradually and uniformly coated and melted and adhered to the mold cavity under the action of gravity and heat energy. On the entire surface, it is formed into the desired shape, and then cooled and shaped to form a product. [0003] Since the process of product formation is mainly through centrifugal force and gravity, the internal structure of the mold in the rotational molding process is generally relatively simple. For this reason, many manufacturers of floor blowing machine ...

AI Technical Summary

Problems solved by technology

However, in the existing rotational molding process, because the product is easily bonded to the inner wall of the mold, the surface of the product is prone to burrs during demoulding, so it needs to be improved.

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