EXPANSION MOLDING DIE AND LOW EXPANSION RATIO EXPANSION MOLDED PIECE USING THE MOLDING DIE

摘要

PROBLEM TO BE SOLVED: To provide an expansion molding die which is capable of molding a plurality of expansion molded pieces simultaneously from an attachment plate, and thereby, enhancing productivity beyond the present level.;SOLUTION: This expansion molding die 1 has flat steam blow-off plates 2a and 2b suitable for the forward surface sides of both master frames 1a and 1b respectively in the way that the forward surface sides of the steam blow-off plates 2a and 2b may become flush. In addition, the molding die has the attachment plate 20, with a molding opening 22 for compartmentalizing a molded piece cavity 4, which is detachably suitable for the side of one 1a of the master frames. Further, a plurality of raw material feeders 5 are fitted to one 1a of the master frames in the way that the raw material blow-off opening of the raw material feeder 5 is exposed in the area of the steam blow-off plate 2a. The attachment plate 20 is constituted of a group of not less than two pieces of detachable attachment plate, and at least one attachment plate among the group of attachment plates has not less than two molding openings 22 in the area of the attachment plate. Besides, the raw material is supplied to not less than two molding openings 22 from a plurality of raw material feeders simultaneously.;COPYRIGHT: (C)2011,JPO&INPIT