Foaming molding device with mold cooling tubing

Abstract

The present invention provides a foaming molding device with mold cooling tubing. The mold cooling tubing does not require a special cooling tubing correspondingly with the shape of the mold when themold is exchanged. The configuration of the mold cooling tubing can be performed in a mold mounting rack which the configuration such as mold support can be avoided, and furthermore the integral bodyof the mold can be cooled uniformly. The configuration of the device is as follows: a main tube is configured along the lower surface of an upper frame of mold mounting rack; a plurality of branch tubes with flexibility are vertically provided on the main tube, which are separated for a certain distance from each other; the upper opening part of each branch tube is communicated with the main tube;cooling water spraying holes are provided in the longitudinal direction with same small interval; when the cooling water is sprayed from the cooling water spraying holes to the mold for cooling, thebranch tubes with flexibility vibrates horizontally under the function of the reaction force of the spraying pressure thereby uniformly cooling the integral body of the mold; additionally, in mold replacement, the branch tube is bent and the front end face of the support is clamped to the inner surface of the back plate for surrounding the mold support.

Description

technical field [0001] The present invention relates to a foam molding device and a foam molding method using the foam molding device. Equipped with mold cooling piping for cooling the mold before taking out the molded product. Background technique [0002] The foam molding device is configured to heat materials such as thermoplastic resin beads filled in the mold by feeding steam into the steam chambers in the mold mounting frames respectively installed on the fixed die-plate and the movable die-plate. It is foamed and formed. After forming, cooling water is sprayed from the cooling pipe installed in the steam chamber to the mold to cool it. After that, the mold is opened and the molded product is taken out. After the mold holder is lowered, the mold installed in the above mold holder is removed, and the mold corresponding to the shape of the product is replaced, that is, the so-called external processing operation (external section extraction operation) is performed. [...

AI Technical Summary

Problems solved by technology

[0009] However, although any of the above-mentioned devices has the effect that the mold can be cooled substantially uniformly, there is the following problem: According to the former cooling mechanism, since the cooling pipe and the air supply pipe are arranged in the steam chamber at the same time, the above-mentioned external processing work is difficult. It is further complicated; according to the latter cooling mechanism, it is necessary to three-dimensionally arrange a dedicated cooling pipe in the steam chamber corresponding to the shape of the mold every time the mold is replaced, and the replacement and adjustment of the cooling pipe are very troublesome.

[0010] In addition, in either device, the rear plate must be removed when the mold is replaced, and cooling pipes are arranged in the mold mounting frame according to the shape of the mold while avoiding the mounting position of the pillar of the mold. The ratio of the time required for loading and unloading the board to the time required for external processing increases, and there is a problem that the efficiency of the mold replacement operation decreases

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