Reversing reel and method of operating a reversing reel

Patent metadata

Field	Value
Publication number	US-11801543-B2
Application number	US-202017422776-A
Country	US
Kind code	B2
Filing date	Jan 13, 2020
Priority date	Jan 17, 2019
Publication date	Oct 31, 2023
Grant date	Oct 31, 2023

Abstract

A reversing reel includes a rotor, on which a reel mandrel with a rotary drive for winding strip into a coil is eccentrically arranged. A driven mandrel support device includes a mandrel support that has a bearing head for supporting a free end of the reel mandrel. The bearing head is movable with the reel mandrel when the reel mandrel is transferred from an initial-winding position into a final-winding position. The mandrel support is a first piston-cylinder arrangement, and the mandrel support is supported in a pivotable manner via a mandrel-support bearing on a slide that is movable tangentially to a circular path of the reel mandrel. The inclination of the mandrel support and the position of the bearing head are adjustable such that the mandrel support is oriented in accordance with a resultant force from the weight force of the coil and the tensile force on the strip.

First claim

The invention claimed is:

1. A reversing reel ( 1 ), comprising:
a rotor ( 2 );
a reel mandrel ( 3 ), provided with a rotary drive, for winding strip ( 9 ) into a coil ( 8 ), the reel mandrel ( 3 ) being arranged on the rotor ( 2 ) eccentrically with respect to an axis of rotation (D) of the rotor ( 2 ); and
a driven mandrel support device ( 4 ) having a mandrel support ( 5 ) that has a bearing head ( 6 ) for supporting a free end of the reel mandrel ( 3 ),
wherein the bearing head ( 6 ) is movable with the reel mandrel ( 3 ), in accordance with a variable position of the reel mandrel ( 3 ), when the reel mandrel ( 3 ) is transferred from an initial-winding position (A) into a final-winding position (F),
wherein the mandrel support ( 5 ) is a first piston-cylinder arrangement ( 7 ) and the mandrel support ( 5 ) is supported in a pivotable manner via a mandrel-support bearing ( 11 ) on a slide ( 13 ) that is movable tangentially to a circular path of the reel mandrel ( 3 ), and
wherein an inclination of the mandrel support ( 5 ) and a position of the bearing head ( 6 ) are adjustable such that the mandrel support ( 5 ) is oriented in accordance with a resultant force R from a weight force of the coil ( 8 ) and a tensile force on the strip ( 9 ).

2. The reversing reel according to claim 1 , further comprising an adjusting device fastened on the slide ( 13 ) for adjusted the inclination of the mandrel support ( 5 ).

3. The reversing reel according to claim 1 , further comprising a second piston-cylinder arrangement ( 10 ) as an adjusting device for adjusting the inclination of the mandrel support ( 5 ).

4. The reversing reel according to claim 1 , further comprising a hydraulic or electric rotary drive as an adjusting device for adjusting the inclination of the mandrel support ( 5 ).

5. The reversing reel according to claim 1 , wherein the slide ( 13 ) is displaceable tangentially to the axis of rotation (D) of the rotor ( 2 ) via a third piston-cylinder arrangement ( 14 ).

6. The reversing reel according to claim 1 , further comprising a closed-loop control system with which the mandrel support device ( 4 ) is controlled in such a manner that the mandrel support ( 5 ) follows a circular path of the reel mandrel ( 3 ) over at least a partial circular section during a winding process.

7. A method for winding a metal strip into a coil ( 8 ), comprising:
providing a reversing reel with
a rotor ( 2 ), the rotor ( 2 ) having a reel mandrel ( 3 ), provided with a rotary drive, for winding the metal strip ( 9 ) arranged eccentrically with respect to an axis of rotation (D) of the rotor ( 2 ), and
a driven mandrel support device ( 4 ), comprising a mandrel support ( 5 ) that has a bearing head ( 6 ) for supporting a free end of the reel mandrel ( 3 );

rotating the rotor ( 2 ) to transfer reel mandrel ( 3 ) while being initially empty to an initial-winding position (A);
supporting a free end of the reel mandrel ( 3 ) with the bearing head ( 6 ) of the mandrel support ( 5 );
lifting the free end of the reel mandrel ( 3 ) with the mandrel support ( 5 );
initially winding the metal strip ( 9 ) in the initial-winding position (A);
rotating the rotor ( 2 ) to transfer the reel mandrel ( 3 ) with an initially wound-on coil ( 8 ) into a final-winding position (F), wherein the mandrel support ( 5 ) is tracked during a rotation of the rotor ( 2 ) from the initial-winding position (A) into the final-winding position (F) in such a manner that the bearing head ( 6 ) remains in load-bearing engagement with the free end of the mandrel support ( 5 ); and
supporting the reel mandrel by a stationary outer bearing and final winding the metal strip ( 9 ),
wherein an adjustment of an inclination of the mandrel support ( 5 ) before and/or during the initial winding and/or during the transfer of the reel mandrel ( 3 ) into the final-winding position (F) is effected in such a manner that an angle between the mandrel support ( 5 ) and a perpendicular essentially corresponds to an angle between a resultant force (R) from a strip tensile force (BZ) and weight force (G) of the coil ( 8 ).

8. The method according to claim 7 , wherein the adjustment of the inclination of the mandrel support ( 5 ) takes place during the rotation of the rotor ( 2 ) from the initial-winding position (A) into a final-winding position (F).

9. The method according to claim 7 , wherein the tracking of the mandrel support ( 5 ) is performed at least partially by superimposing a linear movement of the mandrel support device ( 4 ) with a pivoting movement of the mandrel support ( 5 ).

10. The method according to claim 7 , wherein the free end of the reel mandrel ( 3 ) is supported as a function of the weight force (G) of the coil ( 8 ) and/or the strip tensile force.

11. The method according to claim 10 ,
wherein the load support of the mandrel support ( 5 ) is measured in engagement with the free end of the reel mandrel ( 3 ) and
wherein the support force (S) of the mandrel support ( 5 ) is controlled such that compensation is provided for its lowering caused by weight force (G) and strip tensile force (BZ).

12. The method according to claim 10 , wherein the supporting force (S) acting on the mandrel support ( 3 ) is used as an input variable of an actuator in a control loop.

13. The method according to claim 10 , wherein the supporting force (S) acting on the mandrel support ( 3 ) is used as input variable of an actuator in a control loop provided for controlling a flatness of the metal strip ( 9 ).

Assignees

• Sms Group Gmbh

Inventors

• Täuber Dirk

Classifications

• B21C47/02 Primary

  Winding-up or coiling · CPC title

• B21C47/245

  Devices for the replacement of full reels by empty reels or vice versa, without considerable loss of time · CPC title

• B65H18/028

  Both ends type · CPC title

• B65H18/0212

  Turrets · CPC title

• B21C47/006

  winding-up or winding-off several parallel metal bands · CPC title