JPS624331Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to bridle rolls, and more specifically, when turning loose coils into tight coils,
This invention relates to a bridle roll that can reduce or eliminate swinging of a long plate fed out from a loose coil.

Generally, loose coils discharged from an annealing furnace are wound into tight coils and then sent to the next process, which is called VH coiling. This will be explained in detail with reference to the drawings.

FIG. 1 shows that a cold-rolled plate rolled in a cold-rolling factory is once wound into a tight coil. this,
In order to make the tight coil 1 placed on the tight table into a long one, the edges of the front and rear coils are welded by a welder 3 that connects it to the previous coil, and then the loose coil 2 is placed on the loose table via a looper 4. The case where it is wound up is shown.

Next, the case where the loose coil 2 which has been welded and wound into a long length as shown in FIG. 2 is wound up as a tight coil 5 will be explained. That is, the loose coil 2 shown in FIG. 1 is annealed in an annealing furnace to remove effects and distortions caused by welding, and then placed on a loose table. Then, from the tip of the annealed loose coil 2, it passes through a slider pinch roll 6, a tilt table 7, bridle rolls 8 and 9, and a deflector roll 10, and is then wound into a tight coil 5 by a tension reel.

In this case, the plate S fed out from the loose coil 2 passes through the slider double pinch roll 6, is twisted once, passes through the tilt table 7, passes through the first bridle roll 8, and then the plate S is twisted again. It passes through a second bridle roll 9 in a twisted manner, passes through a deflector roll 10, and is wound into a tight coil 5 by a tension reel.

In this way, the plate S that is unwound from the loose coil 2 initially comes out in a vertical shape, and is rolled by the two bridle rolls 8 and 9 into a horizontal shape (this length and width are shown in Fig. 2). ) and is wound up.

However, with this conventionally used bridle roll, the plate unwound from the loose coil tends to meander and is incorporated in such a layout, especially when the plate rolls on the tilt table shown in FIG. I learned not to go along with it,
Furthermore, if the board meanderes on the bridle roll, the shape of the tight coil will deteriorate when it is wound on the tension reel, and the edges of the wound board will become uneven, making subsequent handling impossible.
Therefore, in order to prevent or reduce the meandering of the plate unwound from the loose coil, the rolls must be replaced frequently, and the life of the rolls is shortened.

This invention is a bridle roll that was developed as a result of various experiments and studies conducted by the inventor in order to solve the drawbacks and problems of the bridle roll conventionally used when changing from a loose coil to a tight coil to a loose coil. .

The bridle roll according to the present invention is characterized by a rubber-like structure in which the roll surface has slits and crepes that are perpendicular to the roll axis and at an angle of 55 to 70 degrees with the roll body surface. The substance is coated.

Next, the bridle roll according to the present invention will be specifically explained using an example shown in the drawings.

perpendicular to the roll axis covered by the bridle roll according to the present invention, and 55°
A rubber-like material that has been slit and creped with an angle of .about.70 degrees will be described with reference to FIGS. 3 and 4.

FIG. 3 is a surface view of the rubber-like substance coated on the roll surface, in which slits 12 perpendicular to the roll axis y are cut at equal intervals 1 apart. This interval l may be set to 20 mm, for example, but it can be changed as appropriate depending on the size of the roll and the usage conditions of the bridle roll. Further, it is preferable to cut the slits 12 at the center of the rubber material 11 at a distance l from each other across the center line x. Therefore, on the surface of the rubbery substance 11,
The slit 12 is cut perpendicular to the roll axis y.

However, this slit 12
The inside of the rubber material 11 is cut at an angle of 55 to 70 degrees with respect to the surface of the roll cylinder, and will be explained below with reference to a partially cutaway cross-sectional view of the rubber-like material 11 shown in FIG.

This FIG. 4 is a partially cutaway cross-sectional view of the rubber-like material 11, and the slit shown at 12 is the rubber-like material 11.
1 is perpendicular to the roll axis, and within the rubber material 11 is cut at an angle of 55 to 70 degrees with the roll body surface 8' (also creped), and , the slits 12 are cut at equal intervals. In this case, for example, the interval 1 between the slits 12 is about 20 mm, but this interval 1 can be changed depending on the size of the roll and the conditions of use of the bridle roll. In addition, it is preferable that the distance l between the center line of the rubber-like material 11, that is, the center line x perpendicular to the roll axis y, be about 20 mm as described above, and the same as the distance between the slits 12. , no slit 12 is cut along the center line x. Slits 12 are perpendicular to the roll axis y on the left and right with this central part as a boundary and are at an angle of 55 to 70 degrees with the roll body surface 8'.
A large number of In this case, the reason why the angle α is set to 55 to 70 degrees is that an angle in this range has been experimentally shown to greatly reduce the swinging of the plate fed out from the loose coil. Therefore, at this angle, the vibration of the plate unwound from the loose coil is extremely reduced due to the cooperative effect with the crepe process.

As shown in Fig. 6, the creped part 13 is raised up due to the slit 12 and has a brake function, and the plate from the loose coil is supported by this creped part 13 so that the plate does not slip. It is sent smoothly in the z direction. Therefore, the plate unwound from the loose coil by the slit and the crepe hardly swings during transportation or when being wound into the tight coil, making it possible to form a tight coil in a condition suitable for handling.

This rubbery material is preferably a urethane synthetic rubber, but it goes without saying that other rubbery materials can also be used. This rubbery substance may be coated on the roll in the form of a flat plate, or it may be formed so that it is thick near the center line and becomes thinner toward the ends of the roll to coat the roll. You can.

Further, as shown in FIG. 5, the center portion of the bridle roll may be made larger in diameter than both ends, that is, shaped like a large drum, and covered with a rubber-like substance.

In any of the above cases, as the area near the center line of the roll becomes larger, the braking function of the rubber-like material is further improved.

In addition, although the case where the bridle roll according to the present invention is used when changing from a loose coil to a tight coil has been described above, in addition to this,
Of course, the bridle roll according to the present invention can be applied to general rolling equipment.

As explained above, since the bridle roll according to the present invention has the above-mentioned configuration, the plate unwound from the loose coil has extremely little meandering. The meandering range is 40mm~100mm or more,
Furthermore, the horizontal deflection of the board is also very large, but with the bridle roll according to the present invention, the meandering range is 30 mm or less, and the horizontal deflection of the board is only a slight deflection to either the left or right. Although the conventional bridle roll has a short usage period of 10 to 25 days, the bridle roll according to the present invention has an excellent effect that it can be used for more than 2 months.

[Brief explanation of the drawing]

Figure 1 is a schematic plan view when a tight coil is welded to make a loose coil, Figure 2 is a schematic perspective view when a loose coil is made into a tight coil using a bridle roll, and Figure 3 is a schematic diagram of the present invention. FIG. 4 is a sectional view showing the slits in the rubber material, FIG. 5 is a sectional view showing an example of the bridle roll, and FIG. 6 is a sectional view showing the rubber material. FIG. 3 is a partial plan view of a case where the surface is subjected to crepe processing. 1...Tight coil, 2...Loose coil, 3
... Welding machine, 4 ... Looper, 5 ... Tight coil, 6 ... Slide double pinch roll, 7 ... Tilt table, 8, 9 ... Bridle roll, 1
0...Deflector roll, 11...Rubber-like substance, 12...Slit, 13...Protrusion, y...Roll axis, z...Direction of movement of the plate.

Claims (1)

[Scope of utility model registration request] A bridle characterized in that the roll surface is coated with a rubber-like material that is slitted and creped to be perpendicular to the roll axis and at an angle of 55 degrees to 70 degrees with the roll body surface. roll.