Uses the die and this die for hollow double-wall formation item blowing formation the blow molding device

摘要

PURPOSE:To enable a deeply drawn molded object to be blow-molded by a method in which upper and lower wall bodies approach a bottom surface member and the other wall bodies adjacent to each other, and are brought in contact therewith at the position spaced outside from the position of the edge line with a bottom surface member by the pivot parallel to the edge line from the opened position turned over outside, and they are pivotally supported rockably in the position molding the expected shape of the female mold. CONSTITUTION:The mold A for blow molding is composed of a pair of female and male molds 10, 11, and the female mold 10 is composed of a peripheral wall member 14 and a bottom surface member 15, whereby a front box type depression is formed. The peripheral wall member 14 is made of four wall bodies 14a, 14b, 14c, 14d, and the bases 16 of the upper and lower wall bodies 14a, 14b in these wall bodies approach the position opening largely in shape outside, the bottom surface member 15 and the other stationary wall bodies 14e, 14d adjacent to each other at the position spaced aside from the position of almost the edge line with the bottom surface member 15 by the pivot 17 parallel to the edge line, and are pivotally supported rockably between the approaching position and the molding position of the female mold. The residual wall bodies except upper and lower wall members 14a, 14b, i.e. left and right wall bodies 14c, 14d are fixed to the bottom member 15 at right angle.