Search International and National Patent Collections

1. (WO2018043619) PIPE MANUFACTURING DEVICE FOR SPIRAL PIPE

Pub. No.:    WO/2018/043619    International Application No.:    PCT/JP2017/031282
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Thu Aug 31 01:59:59 CEST 2017
IPC: B29C 63/32
Applicants: SEKISUI CHEMICAL CO., LTD.
積水化学工業株式会社
Inventors: SUGAHARA, Hiroshi
菅原 宏
BABA, Tatsurou
馬場 達郎
TSUDA, Naoya
津田 直弥
YAMASAKI, Masahiro
山崎 政浩
Title: PIPE MANUFACTURING DEVICE FOR SPIRAL PIPE
Abstract:
Provided is a pipe manufacturing device with which a spiral pipe can be manufactured using a simple configuration without an inner periphery restriction body. A driving section 10 of the pipe manufacturing device 3 presses a following band part 92 toward a pipe end 91e of a preceding spiral pipe part 91 obliquely with respect to a device height direction HD. A pipe end guide 20 is constrained in a device width direction WD with respect to the pipe end 91e, and slidably locked in a propelling longitudinal direction LD. A pressing force for the following band part 92 provides a fitting force between the following band end 92 and the pipe end 91e, and a propelling force for forward propulsion. A pipe is manufactured in a state in which parts other than a part at which the pipe manufacturing device 3 is provided in a circumferential direction of the pipe end 91e is released from the pipe manufacturing device 3.