Bending machine for winding strips into spirals

Details Bending machine for winding strips into spirals Bending machine for winding strips into spirals

B - Operations, Transporting

21

D

B21D 11/06 (2006.01)

Patent

CA 2285735

A bending machine to wind a strip or the like into a spiral comprising a mandrel (2), a bending tool (3), including a grip portion (32) of an end (50) of a strip (5) and a supporting, guiding and counteracting element (4) on a table (1) of the bending machine is disclosed. The bending tool (3) further comprises a plurality of modular elements (60, 61, 62, 63, 64 ...) consecutively so jointed to be relatively movable according to predetermined plane rotations, connected to the grip portion (32), so that, in the rotation of the mandrel (2), the plurality of modular elements roll up on the grip portion (32), with the strip (5) being interposed, so that the path of radially internal and external surfaces of said modular elements are spiral and continuous. The supporting element (4) includes a friction roller-holder lever (40), which can be operated by a vice.

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