Gripper for residual windings which may be wound from residual strip running from strip plants at the roll end
View Patent ↗The invention relates to a gripper for residual windings ( 1 ), which may be wound from residual strip ( 2 ), running from strip plants at the roll end, where said gripper can be pivoted or displaced about a strip plant and which can be embodied for a more rational operation mode, whereby the gripper ( 3 ), in addition to the function there of as drawing device ( 3 a ), is embodied as winding device ( 3 b ).
1. Gripper for residual coils which may be wound from residual strip running from strip mills at the end of a rolling operation, such that the gripper is installed in such a way that it can be pivoted or moved above a strip mill, wherein besides acting as a discharging device ( 3 a ), the gripper ( 3 ) additionally acts as a coiling device ( 3 b ), wherein the gripper ( 3 ) has a driven roller ( 9 ).
2. Gripper in accordance with claim 1 , wherein a pair of swiveling gripping arms ( 6 ; 7 ) are supported in such a way that the arms can be swung in opposite directions about an axis of rotation ( 5 ) that runs parallel to the axis ( 4 ) of a coiler mandrel, a supporting roller ( 8 ) is rotatably supported on the inner aspect of end regions ( 6 a ; 7 a ) of each of the gripping arms, wherein the driven roller ( 9 ) is rotatably supported on the end ( 7 b ) of one of the gripping arms, and a mating roller ( 10 ) is rotatably supported on the opposing end ( 6 b ) of the other gripping arm.
3. Gripper in accordance with claim 2 , wherein the supporting rollers ( 8 ) are rotatably supported idler rollers.
4. Gripper in accordance with claim 2 , wherein the mating roller ( 10 ) is designed with a smaller diameter than the associated driven roller ( 9 ).
5. Gripper in accordance with claim 2 , wherein a swivel hinge ( 11 ) for the swiveling gripping arms ( 6 ; 7 ) in the operating position forms a plane ( 12 ) with the coiler mandrel axis ( 4 ).
6. Gripper in accordance with claim 2 , wherein the driven roller ( 9 ) is arranged at an angle of 5° to 10° in front of the plane ( 12 ) in which the coiler mandrel axis ( 4 ) and the axis of rotation ( 5 ) of the pair of gripping arms ( 6 ; 7 ) run in the operating position.
7. Gripper in accordance with claim 2 , wherein the axis of rotation ( 10 a ) of the mating roller ( 10 ) is arranged relative to the driven roller ( 9 ) at a distance ( 14 ) from an instantaneous circumference ( 15 ) of the residual strip ( 2 ) to be coiled.
8. Gripper in accordance with claim 2 , wherein the axis of rotation ( 8 a ) of each supporting roller ( 8 ) is rotatable approximately on an inner circumference ( 6 c ; 7 c ) of the respective gripping arm ( 6 ; 7 ).
9. Gripper in accordance with claim 2 , wherein the mating roller ( 10 ) and the driven roller ( 9 ) are rotatable with their axes of rotation ( 10 a ; 9 a ) approximately in a middle of a thickness ( 16 ) of the respective gripping arm.
10. Gripper in accordance with claim 2 , wherein the mating roller ( 10 ) and the driven roller ( 9 ) are rotatable with their axes of rotation ( 10 a ; 9 a ) at the end ( 6 b ; 7 b ) of the respective gripping arm ( 6 ; 7 ) in an end-center point ( 17 ).