公开(公告)号：US20240123671A1

公开(公告)日：2024-04-18

申请号：US18278045

申请日：2022-02-22

Applicant: NISSEI ASB MACHINE CO., LTD.

Inventor： Kiyonori SHIMADA ,  Tomomi TSUCHIYA ,  Koichi IKEDA ,  Yuya MIYASAKA

IPC: B29C49/64 ,  B29C49/06 ,  B29C49/42 ,  B29C49/48 ,  B29C49/78

CPC classification number: B29C49/6419 ,  B29C49/06 ,  B29C49/4252 ,  B29C49/4823 ,  B29C49/786 ,  B29C2049/4854 ,  B29C2049/7861 ,  B29L2031/712

Abstract: A temperature adjustment mold capable of performing local temperature adjustment in an axial direction from the inside of a preform while restricting shrinkage and deformation of the preform, for adjusting a temperature of an injection-molded bottomed resin-made preform includes a rod portion inserted into the preform and extending in the axial direction of the preform. The rod portion includes an annular projection portion that protrudes in a radial direction of the rod portion and contacts an inner peripheral surface of the preform. The rod portion contacts a bottom portion of the preform to restrict shrinkage in the axial direction of the preform. The projection portion restricts shrinkage in a radial direction of the preform, conducts heat between the rod portion and the preform, and adjusts a temperature at a predetermined part in an axial direction of the preform.