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US 8,893,539 B2Granted
Method of profiling a tube of given length
AssigneeVavit S.R.L.
InventorVittorio Renato Valle
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Abstract
An embodiment of a method for profiling a tube of given length, whereby, after inserting the tube between at least one pair of rolls having respective coplanar, parallel axes of rotation crosswise to the tube, the rolls are moved onto the tube and pressed gradually against the tube, which, at the same time, is moved axially back and forth.
Claims11
A method of profiling a tube having a given length, a longitudinal axis, and a lateral wall substantially coaxial with the longitudinal axis, the method comprising:
- arranging at least one pair of opposite rolls, having respective axes of rotation, to define a passage for loosely receiving the tube;
- inserting the tube inside the passage, with the longitudinal axis of the tube substantially crosswise to said axes of rotation;
- moving the rolls radially with respect to said longitudinal axis into contact with said lateral wall, and then pressing the rolls gradually against the lateral wall;
- and
- moving the tube axially back and forth;
- and
- simultaneously imparting said radial movement of the rolls and said axial back and forth movement of the tube.
4 more elements
Dependencies are inferred from the claim text.