PIPE-FORMING APPARATUS FOR SPIRAL PIPE AND PIPE-FORMING METHOD THEREOF

Provided is a pipe-forming apparatus with which a spiral pipe can be formed using a simple configuration. A driving part 10 of a pipe end release-type pipe-forming apparatus 3 having a non-inner periphery restriction structure presses a following strip portion 92 toward a pipe end portion 91e of a p...

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Bibliographische Detailangaben
Hauptverfasser:	SUGAHARA, Hiroshi, BABA, Tatsurou, TSUDA, Naoya, YAMASAKI, Masahiro
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING CESSPOOLS ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES SEWERAGE SEWERS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WATER SUPPLY WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Provided is a pipe-forming apparatus with which a spiral pipe can be formed using a simple configuration. A driving part 10 of a pipe end release-type pipe-forming apparatus 3 having a non-inner periphery restriction structure presses a following strip portion 92 toward a pipe end portion 91e of a preceding spiral pipe portion 91 obliquely with respect to a machine-height direction HD. A pipe end guide 20 is constrained in a machine-width direction WD with respect to the pipe end portion 91e, and slidably engaged in a propelling longitudinal direction LD. The pipe end guide 20 includes a flat-shaped receiving portion 21a,22a along the propelling longitudinal direction LD. The receiving portion 21a,22a configures to receive the pipe end portion (91e) from the reverse side. A pressing force for the following strip portion 92 provides a fitting force between the following strip portion 92 and the pipe end portion 91e, and a propelling force for forward propulsion.