Wire-spiralling machine

Details Wire-spiralling machine Wire-spiralling machine

B - Operations, Transporting

21

C

B21C 37/12 (2006.01) B21F 3/02 (2006.01)

Patent

CA 2269537

This wire-spiralling machine continuously produces a tubular structure consisting of a spiral winding (2), particularly a pressure-armour layer, from two noninterlocking wires (16) of large cross section delivered from two reels of wire and two locking wires delivered from two reels of locking wire. A motorized rotating circular cage (6) carries the four reels of wire and locking wire at its rear, while the downstream face of the cage (8) supports, on two adjustable--inclination plates (35), two on-board twin-track caterpillars (31, 31') for dragging the wire (16), these caterpillars being arranged just upstream of guide and/or bend rolls (34) leading the wires towards their respective lay point (33).

Cette spiraleuse réalise en continu une structure tubulaire constituée par un enroulement hélicoïdal (2), notamment une voûte de pression, à partir de deux fils (16) non autografables de forte section délivrés par deux bobines de fil et deux fil d'agrafages délivrées par deux bobines de fil d'agrafage. Une cage circulaire tournante (8) motorisée porte à l'arrière les quatre bobines de fil et de fil d'agrafage, tandis que la face aval de la cage (8) supporte sur deux plateaux (35) à inclinaison réglable deux bichenilles (31, 31') embarquées d'entraînement du fil (16) disposées juste en amont de rouleaux (34) de guidage et/ou de cintrage conduisant les fils vers leur point de commettage respectif (33).

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