Apparatus for winding up a metal strip

Patent metadata

Field	Value
Publication number	US-10906078-B2
Application number	US-201515534742-A
Country	US
Kind code	B2
Filing date	Dec 8, 2015
Priority date	Dec 10, 2014
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

An apparatus for winding up a metal strip into a coil. A frame in which a second counter-bending roller is mounted in a rotatable manner. The frame is movable with the aid of a second setting device between a coiler shaft position and a roller bed position. In the roller bed position, the second counter-bending roller alongside a first counter-bending roller acts as the roller bed roller of a roller bed which is arranged above the coiling device.

First claim

The invention claimed is:

1. An apparatus for winding up a metal strip on a coil; comprising:
a coiling device provided with a coiling mandrel for winding up the strip;
a drive device, mounted upstream of the coiling device seen in a direction of transport of the strip in order to convey the strip in the coiling device; and
a bending device arranged between the drive device and the coiling device, provided with a first counter-bending roller and a second counter-bending roller for supporting the strip in a path of the strip to the coiling device on an upper side of the strip when the apparatus is in a second operating state, and with a bending roller for supporting the strip on a lower side, wherein the first counter-bending roller is mounted upstream of the second counter-bending roller, and wherein the bending device is further provided with a first adjusting device for the bending roller and with a second adjusting device for the second counter-bending roller; and
a roller bed arranged above the coiling device and the strip may pass overtop of at least a portion of the roller bed, the roller bed comprising a plurality of roller bed rollers,
wherein:
the apparatus is switchable between a first operating state and at least the second operating state;
the bending roller is movable to a bending position via the first adjusting device, in which the strip is bent through cooperation between the first and the second counter-bending rollers, and the bending roller, and wherein the bending roller is movable to a retracted position;
the first counter-bending roller is mounted rotatably but in a fixed manner as one of the plurality of roller bed rollers of the roller bed;
a frame is provided, in which the second counter-bending roller is rotatably mounted;
a swivel joint is provided for coupling the second adjusting device to the frame; and
the frame is pivotable with the second counter-bending roller between a non-roller-bed position and a roller bed position, in which the second counter-bending roller is arranged next to the first counter-bending roller as another one of the plurality of roller bed rollers of the roller bed.

2. The apparatus according to claim 1 , wherein the second counter-bending roller is rotationally driven in a first direction to convey the strip in the roller bed position in the second operating state; and
the second counter-bending roller is rotationally driven in a second direction opposite to the first direction to convey the strip in the roller-bed position in a third operating state.

3. The apparatus according to claim 1 , wherein the frame is rotatably mounted about a fixed axis of rotation, which runs parallel to an axis of rotation of the first counter-bending roller, wherein a radial distance of the axis of rotation of the frame from the axis of rotation of the first counter-bending roller does not exceed a predetermined maximum distance.

4. The apparatus according to claim 3 , wherein the axis of rotation of the frame coincides with the axis of rotation of the first counter-bending roller.

5. The apparatus according to claim 3 , further comprising:
a switch indicating the direction for the strip, which is pivotally mounted about an axis of rotation of the switch;
wherein the axis of rotation of the switch coincides with the axis of rotation of the first counter-bending roller;
a third adjusting device for adjusting the switch;
wherein the switch is swivel-able by means of the third adjusting device either to a coiling inlet position in which the strip enters the coiling device, or to a transfer position in which the strip is guided with a-the roller bed and thus it is directed away with the coiling device.

6. The apparatus according to claim 5 , wherein in the first operating state, the switch is swiveled into the coiling inlet position, the frame is pivoted, by means of the second adjusting device, into the non-roller bed position, and the bending roller is pivoted, by means of the first adjusting device, into the retracted position in order to form and release a coiling shaft when a beginning of the strip is wound up on the coiling device.

7. The apparatus according to claim 6 , wherein the frame is equipped with a first baffle plate provided as an upper cover of the coiling shaft and disposed between the second and the first counter-bending roller.

8. The apparatus according to claim 7 , wherein the first baffle plate is formed convexly curved with respect to the coiling shaft.

9. The apparatus according to claim 7 , wherein the frame is provided with a second baffle plate, which is arranged downstream of the upper cover of the coiling shaft and of the second counter-bending roller in the transport direction.

10. The apparatus according to claim 6 , wherein in the second operating state, the switch is swiveled into the coiling inlet position and the frame, by means of the second adjusting device, and the bending roller, by means of the first adjusting device, are pivoted into the bending position, wherein at least the pivoting of the bending roller into the bending position only takes place when a predetermined residual length of the strip has been created for winding up the strip on the coiling device.

11. The apparatus according to claim 10 , wherein in a third operating state, the switch is swiveled into the transfer position and the frame is pivoted, by means of the second adjusting device, into the roller bed position, and in which the second counter-bending roller is arranged next to the first counter-bending roller as the roller bed roller of the roller bed.

12. The apparatus according to claim 3 , wherein the first adjusting device is connected via a multi-articulated coupling gear with the bending roller.

13. The apparatus according to claim 12 , wherein the multi-articulated coupling gear comprises:
a first stationary rotation axis, which extends parallel to the axis of rotation of the first and of the second counter-bending roller across the width of the strip;
an angle lever, provided with at least one force arm, the at least one force arm having one end rotatably mounted about the first stationary rotation axis and the at least one force arm engaged at an opposite end with the first adjusting device, and two load arms, the two load arms forming an angle α with the at least one force arm;
two extended levers arranged in mirror image to one another, each extended lever having a first end and a second end, wherein each extended lever is rotatably connected at the first end to an end of each of the two load arms opposite the first stationary rotation axis, and wherein each of the second ends carry and rotatably support the bending roller, and wherein the extended levers are respectively provided with a non-stationary pivot point that is positioned between the bending roller and an articulation of the angle lever; and
two tabs arranged in mirror image to one another, each tab having a first end and a second end, wherein each first end is rotatably mounted at a pivot point of each of the two extended levers and each second end is rotatably mounted at a second stationary rotation axis, wherein the second stationary rotation axis of the tabs is arranged above the first stationary rotation axis of the angle lever.

14. The apparatus according to claim 1 , wherein the second adjusting device and thus also the frame with the second counter-bending roller are controllable so that they are position-controlled and force-controlled.

Assignees

• Sms Group Gmbh

Inventors

• Cramer Ulrich
• Holzhauer Thomas
• Kastner Andreas
• Müller Heinz-Adolf
• Mengel Christian
• Weber Janina

Classifications

• B21C47/06 Primary

  with loaded rollers, bolts, or equivalent means holding the material on the reel or drum · CPC title

• B21C47/063 Primary

  with pressure rollers only · CPC title

• B21C47/3441

  Diverting the leading end, e.g. from main flow to a coiling device · CPC title

• B21C47/3433

  for guiding the leading end of the material, e.g. from or to a coiler · CPC title

• B21C47/26

  Special arrangements with regard to simultaneous or subsequent treatment of the material · CPC title