公开(公告)号：US3784345A

公开(公告)日：1974-01-08

申请号：US3784345D

申请日：1971-10-20

Applicant: DYNAMIT NOBEL AG

Inventor： GAUCHEL P ,  WISSINGER W ,  KURTH J

IPC: B29C47/00 ,  B29C47/90 ,  B29D23/04

CPC classification number: B29C47/903 ,  B29C47/0023 ,  B29C47/0028 ,  B29C47/003 ,  B29C47/8835 ,  B29C47/884 ,  B29C47/8865 ,  B29C47/90 ,  B29C47/902 ,  B29C47/904 ,  B29C47/908

Abstract: An apparatus for the extrusion of hollow articles of thermoplastic synthetic resin includes an extruded tool and a sizing device adjacent the extruding tool where the hollow article is drawn therefrom. The sizing device has a minor conicity so that the outlet opening in the sizing device is smaller than the inlet opening so that the shrinkage of the dimensions of the article is compensated for. A cooling device may be inserted within a hollow chamber of the article and in addition be externally coupled to the surface of the extruded article as it is drawn through the sizing device.

Abstract translation: 用于挤出热塑性合成树脂的空心制品的装置包括挤出工具和与挤压工具相邻的施胶装置，其中中空制品从中抽出。 定型装置具有小的锥度，使得定型装置中的出口开口小于入口开口，从而补偿制品尺寸的收缩。 冷却装置可以插入制品的中空室中，并且另外在挤出制品的表面通过尺寸调节装置被外部连接到挤压制品的表面时。