JPH0330367Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a meandering correction device for a strip, particularly a meandering correction device for a thin strip whose end face cannot be pushed.

[Prior art and its problems] Equipment in which the strip runs in a flat state includes an annealing line, a cleaning line, and the like. Since the lines in these devices are long, they generally come into contact with a roller or the like provided in the middle, and the lines often meander in that area. Conventional countermeasures have been to make the rollers mid-height (crown rollers) or to move the rotation axis of the rollers, but these methods have had the problem that the meandering correction range is small.

An object of the present invention is to solve the problems of the prior art described above and to provide a meandering correction device having a wide meandering correction range.

[Means for Solving the Problems] The strip meandering correction device according to the present invention includes two rotating shafts, which are attached to each rotating shaft and rotated,
It is provided with two pairs of disks having planes that sandwich the left and right sides of the plane of the running strip, respectively, and a push roll that presses the upper disk of each pair against the strip.

[Operation] In the present invention, the plane of the disk rotated by the rotating shaft is pressed against the plane of the strip by the push roll.

[Embodiment] FIG. 1 is a plan view showing an embodiment of the meandering correction device of a strip according to the present invention, and FIG. 2 is a front view thereof. In the figure, 1 is the running track, 2
L and 2R are rotation axes provided on the left and right sides, respectively, of the traveling direction of the strip 1 (indicated by arrow 7); 3L and 4;
L is attached to the rotating shaft 2L, and this rotating shaft 2L
3R and 4R are a pair of disks that can be rotated freely by the rotation axis and have planes that sandwich the left side of the plane of the strip 1 from above and below, and similarly, 3R and 4R are attached to the rotation axis 2R, They are a pair of disks that can be freely rotated by 2R and have planes that sandwich the right side of the plane of the strip 1 from above and below. Of the two pairs of discs, the upper discs 3L and 3R are made of an elastic body, while the lower discs 4L and 4R are made of a rigid body. 5L and 5R are the upper disk 3 respectively.
It is a push roll that presses L and 3R against the row 1,
The contact centers 6L and 6R of the upper disks 3L and 3R and the strip 1, respectively, are the strips 1 from the center of each rotating shaft 2L and 2R.
The upper discs 3L, 3R and the strip 1 are pressed together around the centers of contact 6L, 6R.

In the strip meandering correction device of the present invention configured as described above, when the strip 1 advances in the direction of the arrow 7,
Force 8 pushing in the diagonal direction toward the centers of contact 6L, 6R
L and 8R are generated, thereby producing component forces 9L and 9R in a direction perpendicular to the direction of movement 7. Now, if you increase the force that pushes the left push roll 5L, the force 9L that pushes the strip 1 toward the right rotation shaft 2R increases, and conversely, if you increase the force that pushes the push roll 5R, you move the strip 1 toward the rotation shaft 2L. The pushing force 9R increases. Furthermore, if the strip 1 moves too far toward the left rotation axis 2L, the contact centers 6L and 6R will move, and the component force 9L will increase and the component force 9R will decrease, so the strip 1 The meandering is corrected.

Furthermore, if the above-mentioned push rolls 5L and 5R are tapered, for example, so that the force for pushing the push rolls changes as the strip 1 moves in the left-right direction, the self-correcting force can be created when the strip 1 moves too much. It can be made larger.

[Effects of the invention] The present invention has the effect that the meandering of the strip can be corrected by pushing the flat surface of the thin strip whose end face cannot be pushed, and that the amount of meandering correction can be arbitrarily adjusted with a simple structure.

[Brief explanation of drawings]

1 and 2 are a plan view and a front view, respectively, showing an embodiment of the present invention. 1: strip, 2L and 2R: rotation axis, 3L and 3R: upper disk, 4L and 4R: lower disk, 5L and 5
R: Push roll, 6L and 6R: Center of contact, 7:
8L and 8R: force pushing in the diagonal direction; 9L and 9R: component force.

Claims (1)

[Claims for Utility Model Registration] (1) Two pairs of circles having two rotating shafts and planes that sandwich the left side and right side of the plane of the running strip attached to each rotating shaft and rotated. A meandering correction device for a strip, comprising: a plate; and a push roll that presses the upper disc of each pair of discs against the strip. (2) The meandering correction device for a strip according to claim 1, wherein the center of contact between the strip and the upper disk is biased toward the entry side of the strip from the center of the rotating shaft. (3) The upper disc of each pair of discs is made of an elastic body, while the lower disc is made of a rigid body.Meandering of the strips described in Claim 1 of the Utility Model Registration Claim Correction device. (4) The meandering correction device of the strip according to claim 1 of the utility model registration claim, in which the push roll is tapered.