JPS627100B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for changing the traveling direction of a traveling strip of material.

When manufacturing steel plates, several processing steps must be performed. On the other hand, in recent years, as part of the rationalization of steel sheet manufacturing, various studies have been conducted on the serialization of multiple processing steps, that is, equipment and equipment. Because of this problem, attempts have been made to change the direction in which the steel plates travel in order to enable equipment layout that does not waste space. This is also necessary for the continuity of existing equipment.

Conventionally, a free loop method, a twist roll method, and the like have been proposed as means for changing the traveling direction of a steel plate. As shown in Figure 1, the free loop method is to install two rolls 01 and 02 with their orientations changed, and to create slack in the steel plate 03 between them, and to change the orientation of the steel plate 03 by twisting it. In addition, the twist roll method is a method in which a large number of rolls 04 are twisted and arranged, and these rolls 04
The orientation of the steel plate 03 can be changed by aligning the steel plate 03. However, in the above-mentioned free-loop method, the plate passing speed is limited by the swinging of the free-loop portion, that is, the slack portion, so the range of application thereof is limited. In addition, in the twist roll system, the roll 04 is technically provided with a large convex crown, so when the direction of movement of the steel plate 03 is changed, the steel plate 03
The circumferential speed differs in the width direction of the steel plate, which causes slips, so there is a problem that it can only be applied to the narrow steel plate 03.

Recently, however, a steel strip traveling direction changing device as shown in FIG. 3 has been proposed as a means for solving the problems of the conventional steel plate traveling direction changing means as described above. This device has a virtual cylindrical surface 05
A plurality of guide rollers 06 are arranged on the spiral curve of the steel plate 03, and the direction of the steel plate 03 is changed by moving the steel plate 03 in a spiral shape along these guide rollers 06. This device has a mechanical characteristic that the surface of the steel plate 03 on the entry side is on the lower side on the exit side. By the way, more scratches occur on both sides of the steel plate 03 than on the front side due to the guides and the like. Therefore, during the manufacturing process of steel plate 03,
It is not preferable for the front and back sides of the steel plate 03 to be reversed as described above, as this will result in a decrease in quality.

The present invention has been made in view of the above circumstances, and another object of the present invention is to enable the traveling direction of a strip material to be changed without changing its front and back sides.

In order to achieve the above object, the present invention has a configuration in which a plurality of guide rotors are freely rotatable on a plurality of spiral curves along a virtual conical surface about axes orthogonal to the spiral curve and the virtual conical surface. A conical surface formed by the envelope surfaces of these guide rotors and a passage for the belt-shaped material to travel.

EMBODIMENT OF THE INVENTION Hereinafter, the traveling direction changing device for a strip steel plate according to the present invention will be explained in detail with reference to the drawings.

In FIG. 4 showing the basic concept of the present invention, 1 is a virtual conical surface as a virtual conical surface, 2 is a plurality of virtual spiral curves along the virtual conical surface 1, and the virtual conical curves 2 are at the point where they start winding around the virtual conical surface 1. It forms a helical angle _E with respect to the generatrix 3 of the conical surface 1. A plurality of guide rollers 4 serving as guide rotors are arranged on each helical curve 2 on the virtual conical surface 1 with their rotating shafts 4a orthogonal to the helical curves 2. The band-shaped steel plate 5 is moved along a conical curved surface formed by the envelope surface of the guide roller 4 as a traveling path. Since the direction of the roller circumferential speed at the point where the guide roller 4 contacts the steel plate 5 always matches the tangential direction of the spiral curve 2, the steel plate 5
The direction of travel is smoothly changed along the spiral curve 2. In the figure, B is the width of the strip steel plate 5.

FIG. 5 shows an expanded view of FIG. 4. The 4 groups of guide rollers are located in a band-shaped trapezoid ACFE having a width B that forms an angle _E with the generatrix 3 where the virtual conical surface 1 and the steel plate 5 begin to contact, and the rotation axis 4a thereof
are arranged perpendicular to the direction of travel.
Also, with reference to FIG. 4, when the advancing direction of the steel plate 5 forms a 90° angle between the entrance and exit sides of the virtual conical surface 1 (β
= 90°), the sum of the angles _E and _D between the steel plate 1 and the generating line 3 at the entrance 5a and exit 5b of the steel plate 5 to the virtual conical surface 1 is 90°, so From Fig. 5, it can be seen that the apex angle α in the developed view of the virtual conical surface 1 is also 90°. Considering the same way, if you want to change the traveling direction of the exit side 5b of the steel plate 5 by an angle β with respect to the traveling direction on the same plane as the entrance side 5a, the apex angle of the developed view of the virtual conical surface 1 should be α = β and wrap the steel plate 5 around the virtual conical surface once.

Of course, even in the case of α≠β, the steel plate can be wrapped around the virtual conical surface by adjusting the amount of wrapping around the virtual conical surface, that is, by wrapping the steel plate around the virtual conical surface not just once, but more than once or less than once. By selecting the apparent angle β between the two advancing directions on the entry and exit sides of the steel plate 5, the advancing direction of the steel plate 5 can be arbitrarily set. However, in this case, the entrance side 5a and exit side 5b of the steel plate 5 are not on the same plane, so after changing the direction of the steel plate 5, it is necessary to re-correct the direction of movement of the steel plate 5 to horizontal, vertical, etc. Needless to say, there is.

In addition, if it is not necessary to select the entrance and exit sides of the steel plate 5 on the same plane on the virtual conical surface 1, the virtual conical surface is
As shown in FIG. 6, the same effect can be obtained even if the bottom surface 1a is formed into a spiral conical surface 1' forming a spiral curve, and the steel plate 5 is wound around the spiral conical surface 1'.

The arrangement of the guide rollers 4 is a staggered arrangement when viewed from the traveling direction of the steel plate 5, so the direction of the roller circumferential speed and the tangential direction of the helical curve 2 corresponding to the traveling direction of the steel plate 5 mentioned above must match. The individual guide rollers 4 smoothly move the steel plate 5
The direction of travel can be changed.

FIG. 7 shows a specific example of the traveling direction changing device according to the present invention. A plurality of virtual cone frames 6 are arranged along the generatrix 3 of the virtual cone surface 1 via bearings (not shown). The guide roller 4 is supported on the virtual cone frame 6 on a plurality of spiral curves 2 along the virtual cone surface 1 so that its rotation axis 4a is orthogonal to the spiral curves 2, but in this specific example, Four groups of guide rollers arranged on the same generatrix 3 are assembled into a base 7 to form a guide roller assembly 8, which is mounted on the virtual cone frame 6.

The envelope surface of the guide roller 4 forms a helical surface, and the steel plate 5 is threaded along this helical surface, so that the traveling direction can be smoothly changed without changing the front and back sides. In this device, since the four groups of guide rollers are assembled as an assembly, maintenance and inspection thereof are easy.

This traveling direction changing device can be provided with a function to prevent the steel plate from meandering. In Figure 7,
One end of at least one guide roller assembly 8 is pivotally connected to the virtual cone frame 6 by a fulcrum pin 9, and a cylinder 10 is connected to the other end, while a steel plate 5
A meandering amount detector (for example, a photo cell, etc.) 11 for detecting the amount of meandering is provided on the exit side of the cylinder, and the cylinder 10 is controlled by a control device 12 based on a detection signal from the meandering amount detector 11. There is.

When the steel plate 5 is passed through without meandering, the direction of movement of the steel plate 5 is directly changed by the action of the guide rollers 4. When meandering occurs in the steel plate 5, the above mechanism is activated to correct the meandering. When correcting the direction of the steel plate 5 after the change in direction of movement in the direction of arrow _Y1 , the cylinder 10 is actuated by the control device 12 according to the meandering amount detected by the meandering amount detector 11, and the guide roller assembly 8 moves in the direction of the arrow Y1. _X1
Correctly moved in the direction. This correction movement corrects the direction of the steel plate 5 after the direction of movement has been changed. Steel plate 5
If the meandering is opposite to that described above, the guide roller assembly 8 is moved in the opposite direction.

In this specific example, the meandering of the steel plate 5 is corrected by moving some of the 4 groups of guide rollers to correct the direction, but it is also possible to correct the meandering using all 4 groups of guide rollers. In that case, instead of correcting and moving all the guide roller assemblies 8, the entire virtual cone frame 6 is moved into a virtual cone by a drive device such as a cylinder or an electric motor in response to a signal from the control device 12 based on the detected amount of meandering. The same effect can be obtained by rotating around the central axis of alignment.

Note that the present invention is not limited to the steel strip 5, but can be applied to any strip that does not cause quality problems due to contact with the guide roller 4.
Further, in the above specific example, a regular cone is used as an example of the virtual conical surface, but it goes without saying that the present invention may be applied to a general cone or pyramid that is not a regular cone. Furthermore, in the above specific example, the guide roller 4 whose rotating shaft 4a is perpendicular to the spiral curve 2 is used as the guide rotor, but in addition, a spherical object whose surface contacts the strip material at a point or plane may be used. It is also possible to do so.

As explained above in detail with specific examples,
According to the device for changing the traveling direction of a strip material according to the present invention, since the traveling direction of the strip material is changed by the rotor arranged spirally along the conical surface, the traveling direction of the strip material can be changed without changing the front and back sides of the strip material. It becomes possible to change the direction of movement of the strip material. In addition, whether the width of the strip material is large or small, the direction of movement can be changed smoothly.

[Brief explanation of the drawing]

1, 2, and 3 are schematic diagrams of a conventional device for changing the traveling direction of a strip material, FIG. 4 is a conceptual diagram of an example of the traveling direction changing device according to the present invention, and FIG.
The figure is a developed diagram, Figure 6 is a conceptual diagram of another example, and Figure 7 is a conceptual diagram of another example.
The figure is a schematic perspective view of one embodiment of the present invention. In the drawing, 1 is a virtual conical surface, 2 is a spiral curve, and 4 is a virtual conical surface.
1 is a guide roller, 5 is a steel plate, 6 is a virtual cone frame, 7 is a base, 8 is a guide roller assembly, 9 is a fulcrum pin, 10 is a cylinder, 11 is a meandering amount detector, and 12 is a control device.

Claims (1)

[Claims] 1. A plurality of guide rotors are arranged on a plurality of spiral curves along a virtual conical surface so as to be rotatable around an axis perpendicular to the spiral curve and the virtual conical surface, and the envelope surface of these guide rotors A device for changing the traveling direction of a strip material, characterized in that the formed conical surface is used as a traveling path for the strip material.