JPS6033825A - Roll shifting device in roll leveler - Google Patents

Abstract

PURPOSE:To improve the durability and operating efficiency of a roll by preventing the generation of roll defects and dispersing the roll defects, by shifting the roll in its axial direction through the rollings of rollers in case shifting the roll. CONSTITUTION:When a shifting cylinder 12 is contracted, a holding frame 8 for holding a roll chock 7 is moved through the rolling of a roller 9 on the upper surface of a cam rail 10. A leveling roll 2 is shifted in its axial direction along the shape of the rail 10 while describing a circular arcuate curve, because the upper surface of rail 10 is formed into said curve. Accordingly, the generation of scratch is prevented because the roll 2 is separated from the roll 3. By performing such operation properly at every pass, the wear and roll mark generating in the roll 2 are dispersed in its axial direction, then the durability of roll is improved and the frequency of roll replacement is reduced.

Description

[Detailed description of the invention] /Relating to notebook devices.

In general, it is not necessary to correct the IJ amplifier, Fig. 1 (A)
(As shown in B'l), a roller leveler is used in which a plurality of leveling rolls (2) are arranged to alternately sandwich the IJ amplifier 1) from its upper and lower surfaces. Each leveling roll (2) is supported by a split backup roll (3) for reinforcement and for flexible flexibility.

However, since these roller levelers are provided with a split back-up roll (3), as shown in Fig. 2, roll abrasion occurs due to contact of the back-up roll shoulder with the leveling roll (2), and roll damage occurs. Roll defects (4) such as marks, scales, indentations caused by foreign matter biting, and convex protrusions caused by improper selection occur, and these defects (4) are transferred to the IJ amplifier 1), resulting in so-called roll defects. This caused product quality to deteriorate. Conventionally, when such a defect (4) occurred on the leveling roll (2), it was frequently replaced with a new roll and the old roll was polished in between, making the roll replacement work troublesome. At the same time, the roller leveler must be stopped when replacing the rolls, resulting in a reduction in operating efficiency, and also requiring a large number of spare rolls, which is economically disadvantageous.

In view of these circumstances, the present invention extends the life of the roll by shifting the roll to the right in the axis direction as appropriate, thereby preventing roll defects and dispersing them. The aim is to reduce the number of rolls, improve quality, and achieve IJ lump correction.

Hereinafter, the present invention will be described in detail with reference to the drawings.

Figure 6 shows one end of the lower side of a roller leveler similar to that shown in Figure 1 (B), so the leveling roll (
The backup rolls (3) supporting the leveling rolls (2) are shown arranged on the base frame (61) so that the pressing force on the leveling rolls (2) can be adjusted by a wedge mechanism (5) etc. Rollers (9) are rotatably provided at both ends of the holding frame (8) that holds the axle box (7) in (2), and the center part of the upper surface is shaped like an arc so that the rollers (9) can roll. The cam rail α0) is supported by the window part of the housing θ1) parallel to the axial direction of the leveling roll (2), and is configured to be adjustable in multiple positions by the cylinder a. Connect shift cylinder Q2+ to an appropriate position. In addition, cylinder α
Instead of η, screw type or rack and pinion may be used.

Now, if a slight defect such as roll wear occurs on the surface of the leveling roll (2), contract the shift cylinder θ2,
The holding frame (8) that holds the axle box (7) is moved. This movement is performed by the rollers (9) of the holding frame (8) rolling on the upper surface of the cam rail 001, and since the upper surface of the cam rail oO1 is an arc of 2, the leveling roll (2) is It is shifted in the roll axis direction in an arc shape along the shape of θω. Therefore, in this case, the leveling role (2) is the backup role (3).
Since it separates from the surface, there is no risk of scratches occurring.

By performing such operations appropriately for each pass, wear and roll marks occurring on the leveling roll (2) are dispersed in the roll axis direction, and the leveling roll (2)
The life of the roll is extended and the number of roll replacements is reduced.

FIG. 4 shows another embodiment of the present invention, in which instead of the direct-acting shift cylinder α2 in the previous embodiment, the intermediate portion is pivoted at an appropriate position between the shift cylinder O2 and the holding frame (8). The connecting portion between the link Tl11 and the holding frame (8) is a long hole pin connection, and can be attached in the same manner as in the previous embodiment.

5 and 6 show still another embodiment of the present invention, in which a pinio/rank system is used instead of the shift cylinder 0 in the embodiment shown in FIG. That is, a rack (13) is provided on the lower surface of the holding frame (81), the eccentric pinion α4 that meshes with the rack cod is supported by the base frame (bracket fixed on 61) f151, and the eccentric pinion (141 is connected to the motor). (
It is constructed so that it can be rotated by 1.

In the case of such a system, when the motor (I61) is driven to rotate the eccentric pinion (14), the holding frame (8) moves via the rack (13) that meshes with the eccentric pinion f141. At the same time, the rollers (9) roll on the cam rail QOI'2, so the leveling roll (2) is shifted in the axial direction as in the previous embodiment.

In addition, the eccentric pinion (Q4) and the cam rail handle are configured to have corresponding shapes so that the roller (9) is located at the top of the cam rail Ql when the maximum diameter part of the eccentric pinion (14) is engaged with the rack (country). Needless to say, there are many.

By the way, the roller leveler is shown in Figures 1 (B) and (B).
In addition to the system in which the leveling roll (2+ is supported by all direct backup rolls (3)) as shown in Figure 2, there is also the so-called bHi system in which the leveling roll (2+ is supported by an intermediate roll and a backup roll (3)). In such a 6Hffl type roller leveler, equivalent effects can be obtained by employing each of the above embodiments for the intermediate roll.

Further, although the lower half of the roller leveler was shown in the above embodiment, the same procedure can be applied to the upper half. Note that the shape of the cam rail in FIG. 3 may be a linear mountain shape.

As explained above, according to the present invention, (1) Defects such as wear scratches occurring on the roll can be dispersed in the roll axis direction, thereby extending the life of the roll.

(11) From the above item (1), since the number of roll replacements is reduced, the number of spare rolls can be reduced.

611 The roller leveler stops for a short time, so
Operation rate improves.

(φ Roll polishing time is reduced.

It can produce excellent effects such as

[Brief explanation of drawings]

Figure 1 (A) and (B) are explanatory diagrams showing the outline of Roller Levelano, Figure 2 is the first part and (B) ■-1
6 is a schematic diagram of the apparatus of the present invention, FIG. 4 is a partial diagram of another embodiment of the present invention, and FIG. 5 is a diagram of still another embodiment of the present invention. The important diagram, Figure 6, is the ■-V+ arrow view in Figure 5. (2) Leveling roll, (3) Backup roll, (6) Base frame, (7) Axle box, (8
)...Holding frame, (9)...Colo, o[l)・
...Cam rail, Q2...Shift cylinder, (131
...Rack, o41...Eccentric pinion, αQ...
motor. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd. Patent applicant agent

Claims (1)

[Claims] 1) A roller is provided on the axle box side of the roll supported by the backup roll, a cam rail is provided for rolling the roller in the roll axial direction, and the roll is shifted in the axial direction through the transfer of the roller. A roll shift device for a roller leveler that is specially designed to be equipped with a drive mechanism to