Foaming forming demoulding device for annular structural piece

Abstract

The invention discloses a foaming forming demoulding device for an annular structural piece. The device comprises a support assembly, a hanging rod assembly, a hand wheel assembly and flying ring assemblies. The support assembly comprises a base and holders arranged on the two sides of the base correspondingly. The hanging rod assembly comprises a hanging rod and an ejector rod. One end of the hanging rod is connected with the top end of the first holder through a rotation shaft, the hanging rod can rotate around the rotation shaft, and the other end of the hanging rod and the top end of the second holder are fixedly connected through a bolt. The ejector rod is inserted in the middle portion of the hanging rod in a threaded manner, and the top end of the ejector rod is connected with the hand wheel assembly. Each of the two sides of the ejector rod 22 of the hanging rod assembly sleeves the corresponding flying ring assembly used for die hoisting. According to the foaming forming demoulding device, the die design can be simplified, the die producing and manufacturing cost is reduced, meanwhile, the product production efficiency is improved, the production safety risks are reduced, the foaming forming demoulding device is particularly suitable for demoulding of the type of large die, and the problem that in the prior art, a die can only be hoisted through a crane to be demoulded, and consequently potential safety hazards are caused is solved.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a foam molding demoulding device for annular structural parts, which is suitable for demoulding various plastic annular molded parts. Background technique [0002] The polyurethane foam molding technology is used to produce ring parts. Because the product is not finalized and the size of the product is uncertain, the blank parts are generally produced first, and then the product size requirements are met by mechanical processing. In order to reduce the production cost, the structure design of the mold for the product blank is relatively simple. The mold mainly consists of an inner core, an outer cavity, and a bottom plate cover. There is no demoulding or ejection device. (External cavity of the hanging mold) Lifting and unloading the mold. Although the method is simple, there are certain potential safety hazards. Since the mold is hung on the crane for unloading, the ...

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Problems solved by technology

[0003] In view of the above defects and / or improvement needs of the prior art, the object of the present invention is to provide a foam molding demoulding device for annular structural parts, which is especially suitable for mold demoulding consisting of an inner core, an outer cavity and a bottom plate. The mold is especially suitable for the demolding of such large molds, which solves the problem of potential safety hazards in the prior art that the mold can only rely on the lifting of the crane for demoulding.

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