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|1. (WO2018043619) PIPE MANUFACTURING DEVICE FOR SPIRAL PIPE|
|Applicants:||SEKISUI CHEMICAL CO., LTD.
|Title:||PIPE MANUFACTURING DEVICE FOR SPIRAL PIPE|
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.