Stretch rolling device and stretch rolling method

Abstract

Stretch-rolling device (1) and stretch-rolling method for pressure-forming workpieces (W) by rolls, the stretch-rolling device (1) having: a pair of work rolls with two rolls (10), which can each be rotated about their roll axes and form a roll gap between them, the rolls (10) implement a plurality of stages (S1 to S4) in the axial direction, which are set up for the stepwise deformation of the workpieces (W) by the workpieces (W) passing through the stages (S1 to S4) successively; a manipulator (20) with a plurality of gripping devices (21) which are arranged on a working side (AS) of the pair of work rolls and are set up to grip the workpieces (W) and at an assigned stage to guide the workpieces through (S1 to S4) the roll gap in a feed/retraction direction; a support (30) arranged to temporarily support workpieces (W) and in cooperation with the manipulator (20) to transfer the workpieces to another gripping device (21), preferably the adjacent gripping device (21) of the next higher stage (S2 to S4).

Dependencies are inferred from the claim text.