JPS58100053A - Running direction changing device for strip - Google Patents

Abstract

PURPOSE:To change the running direction of a strip safely and assuredly by sequentially disposing multistage rolls for guiding the strip vertically after a pay-off reel of line equipment and radially at a running direction changing corner portion. CONSTITUTION:A strip 2 drawn out from a pay-off reel 1 passes through rolls 3, 3-1, and then gets to a roll 3-2 a little inclined to the changing direction at a running direction changing corner portion to change its running direction a little. The strip is guided to upper and lower rolls 3-3, 3-4,...3-10 disposed radially centering around the center of the corner radius with phase sequentially shifted so that the course of the strip is changed to a desired direction, and the strip is rolled round a reel 4. By tension worked upon the strip in the widthwise at the corner portion, the end portion of the strip 2 is stretched out corresponding to the inclination of the rolls as against the central portion thereof, so that if the stress of the end portion is lower than the stress of yield point, the strip can be free from plastic deformation and turned to a different direction without the smallest strain.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to (a) a device for changing the traveling direction of an IJ tube in line equipment for processing strips;

In general, the fins for processing the strip are usually arranged in a straight line without being bent in the width direction of the strip. However, due to building issues, or when making continuous use of conventional equipment where the IJ tube was wound into a coil and processed in separate equipment, it is necessary to bend the strip advancing direction to the strip width direction. There will be cases.

An object of the present invention is to provide a device that can safely and reliably change the strip traveling direction in such a case.

The following will explain the embodiments shown in the drawings.

In Figures 1 and 2, 1 is the payoff reel.

2 is a strip, 3, 3-1.3-2.3-3 ・
. . . is a roll for guiding the strip disposed above and below the payoff Q −/l/rear stage, and 4 is a reel.

After the strip 2 pulled out from the payoff reel l passes through the loaf L/3.3-1, it enters the loaf L/l/3-2, which is slightly similar to the changing direction at the strip traveling direction change corner, and changes its traveling direction. is guided by the upper and lower rolls 3-3 and 3-4, which are arranged radially with a sequential phase shift around the corner radius center when seen in plan, and finally converts its course into the desired direction. The tension acting in the width direction of the IJ tube is applied to the center section 2-c of the IJ tube 2 as shown in Figure 3. -a, 2-b are rolls 3-3, 3-4
It becomes a stretched state corresponding to the tilt angle of..., and the stress distribution at that time is as shown in Fig. 4.
a.

In 2-b, it becomes σb. S) The stress at the center of the IJ tube is O in this state, but when the stress is O, S) IJ
Knob 2 is wrinkled, making the progress of the squirrel l-IJ knob unstable. Therefore, there is a certain amount of tensile force σt even in the center.
It is better to drive with this in mind. In this case, the stress σ at the end is σ=σt+σb, and if σ is the yield stress, the strike IJ tube 2 can easily change its direction of movement without undergoing any plastic deformation.

By changing the roll shape, for example by adding crowning, the stress distribution is changed as shown in Figs. 5 and 6.
It is possible to change the traveling direction of the strip more stably, and since the rolls are non-drive, the stress σ increases each time the strip passes through one roll, so when there are many rolls, the stress σ increases There are cases where the yield point is exceeded.

In this case, by driving the roll before it exceeds its yield point, the stress σ can be returned to approximately the initial state of the roll 3-1.

Further, among the upper and lower rolls 3-1, 3-2, etc., only the middle upper roll or lower roll can be made vertically movable. In this way, the IJ tube can be used as a looper to temporarily store the IJ tube (without stopping the progress of the strip, and when performing various operations in the middle of the line, in front of the armpit).

In the embodiment, the fins for winding the strip 2 pulled out from the payoff reel 1 onto the reel-lv4 have been described, but the present invention is not limited to this. It is also possible to connect it to a computer, and it can be suitably used in a wide range of applications.

As described above, the present invention has an extremely simple structure and allows the traveling direction of the IJ tube to be changed to a desired direction in a stable state. Therefore, the intended purpose of the invention can be achieved reliably at low cost.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram of the roll arrangement according to the present invention, FIG. 2 is a plan view, FIG. 3 is a trajectory of the center and both ends of the strip guided from the nth roll to the n+1th roll, and the fourth The figure shows the stress distribution within the IJ tube in the case of Figure 3. Figure 5. FIG. 6 shows an example in which the roll is crowned. 1...Payoff Free/L/2...Strip
3, 3-1. 3-2, 3-3... Roll 4... Reel 3rd
Figure 4 Figure 5 Figure 6

Claims (1)

[Scope of Claims] 1) Multi-stage rolls for extracting the strip are disposed vertically after the payoff reel of the line equipment for processing the strip, and when the multi-stage roll arrangement is viewed from above, s) IJ
At the traveling direction changing corner part of the roll, the IJ tubes are sequentially arranged in a radial direction around the corner radius center to a desired direction, and the traveling direction of the IJ tube guided by the roll can be changed. A device for changing the direction of strip movement. 2) After the payoff reel of the line equipment for processing strips, multi-stage rolls for deriving IJ tubes are arranged above and below, and when looking at the multi-stage roll arrangement from above,
At the corner portion for changing the direction of travel of the IJ spruce, the IJ sprues are sequentially arranged in a radial direction up to a desired direction around the corner radius center, and are guided by the rolls. A device for changing the traveling direction of a strip, characterized in that an upper roll or a lower roll can be moved up and down.