JPS6057921B2 - foil strip rolling machine - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a foil strip rolling machine.

[Prior Art] In a foil rolling mill, wrinkles occur during rolling when the distance in which the foil strip is running in an unsupported state increases, so a bridle roll is used to guide the foil strip to a work roll. They should be placed as close together as possible.

On the other hand, in order to rearrange the work rolls, it is necessary to install rails for moving the work rolls, but the space for installing the rails is also extremely limited due to the above-mentioned circumstances. Furthermore, in foil strip rolling, it is known that slight variations in rolling conditions can cause the foil strip to break.

When this foil strip breaks, the foil strip becomes stuck between the rolls or in the surrounding equipment, and removal becomes a problem.

In order to avoid this debris clogging or to facilitate the debris removal work, it is necessary to secure sufficient space, but this poses a problem in the arrangement of rails for rearranging the work rolls.

Moreover, since it is possible to leave a fairly wide gap between the rearrangement moving rail and the holding roll body, in order to avoid clogging of the foil strip with debris or to facilitate the removal of debris,
It is necessary to secure sufficient space, but this poses a problem in the arrangement of rails for changing work rolls.

[Purpose of the invention]

The present invention was made in view of this problem, and compared to the past, it suppresses the occurrence of wrinkles in the foil strip, prevents the clogging of broken foil strips between the recombination rail and the backing roll, and
Moreover, it is an object of the present invention to provide a foil strip rolling mill in which work rolls can be quickly rearranged.

[Means to solve the problem]

In order to achieve the above object, the present invention has a configuration in which a bridle roll is provided between a rolling mill stand drive side housing and a work side housing, and a reassignment rail is driven forward and backward below the bridle roll.

An embodiment of the present invention will be described below with reference to the drawings.

In Figures 1 and 2, 1 and 2 are the left and right legs of the drive side roll stand of the rolling mill, 3 and 4 are the left and right legs of the work side roll stand of the rolling mill, respectively, and 5 and 6 are the work roll and the backing roll. , 7 and 8 are drive side and work side chock bearing boxes, 9 and 10 are work roll changing wheels, 11 and 12
Cylinder blocks 13 and 14 are arranged adjacent to and facing each other on the left and right sides 1 and 2 of the drive-side roll stand, respectively.
are work-side cylinder blocks disposed adjacent to and opposite to the left and right legs 3 and 4 of the work-side roll stand, respectively.

At the lower ends of the mutually opposing sides of the driving side cylinder blocks 11 and 12 and at the lower ends of the mutually opposing sides of the working side cylinder blocks 13 and 14, recombinable fixed rails 15 are provided at the same height.
is fixed horizontally. Further, horizontal guide grooves 16 are formed at the lower end portions of opposing side surfaces of the opposing drive-side cylinder block 11 and working-side cylinder block 13, and at the lower end portions of the opposing side surfaces of the opposing driving-side cylinder block 12 and working-side cylinder block 14, respectively. There is. Reference numeral 17 denotes a recombinable moving rail whose both ends are slidably engaged and supported by the horizontal guide grooves 16 of the driving cylinder block 11 and the working cylinder block 13, respectively.

The above-mentioned sliding movement of the recombinant moving rail 17 is performed by two drive cylinders 18 whose rod portions are respectively connected in the vicinity of the above-mentioned both ends.
It is carried out by. The base of the drive cylinder 18 is connected to brackets 19 attached to the outer surfaces of the left and right legs 1 and 3 of the drive side and work side roll stands, respectively. The rearrangement moving rail 17 is also provided between the drive-side cylinder block 12 and the work-side cylinder block 14 in parallel with the rearrangement movement rail 17 in the same manner as above, and the drive cylinder 1 which is equivalent to the drive cylinder 18 ``It is slidingly driven by. The two parallel recombinant moving rails 17 are connected to the corresponding recombinant fixed rails 15 as shown in solid lines in FIGS. When the actuation command is given and the actuator is at its shortest position, it is moved to the retracted position shown by the dotted line in Figure 2. Chiyotsuk bearing box 7 and 8
The work roll changing wheels 9 and 10 are engaged with the changing fixing rail 15 during non-roll changing work. 20 is a bridle plate, 21 is a foil strip work roll 5
, 6, is provided between the drive side roll stand 1 and the work side roll stand 3 so as to be close to the work rolls 5, 6, and is supported by a bridle plate 20.

22 is a work cart.

In this configuration, when an operation command is given to the corresponding drive cylinder 18, the left/right reassembled moving rail 17 is slid in a direction perpendicular to the axes of the rolls 5 and 6 of the rolling mill toward the rolls, They are connected to one series pair and the other series pair of recombinant fixed rails 15, respectively.

Therefore, the work roll changing wheels 9 of the choke bearing boxes 7, 8,
10 is engaged with the recombination fixed rail 15, the work roll 5 can be pulled out onto the work trolley 22 by connecting the work side fixed rail 15 to the rail on the work trolley 22, and then the work roll 5 can be pulled out onto the work trolley 22. A new work roll 5 can be carried into a predetermined position in the rolling mill from above 22. After this loading, when a backward motion command is given to the drive cylinder 18, both recombination moving rails 17 are driven in the anti-roll direction to a predetermined retracted position.

〔Effect of the invention〕

As explained above, the present invention has a structure in which a bridle roll is provided between the drive side and the work side housing of a rolling mill stand, and the recombination moving rail is driven forward and backward below the bridle roll. It is placed close to the work rolls and creates a fairly wide gap between the rearrangement moving rail and the holding roll body to prevent roll scratches caused by strip scraps, thereby preventing the transfer of wrinkles and roll scratches. This makes it easy to improve product quality and quickly reassemble rolls.In addition, the movable recombination rolls are supported on stands, so high loads are not applied to the bridle plate during recombination. Once upon a time,
It is possible to prevent a situation in which the positional relationship between the bridle roll and the work roll is out of alignment.

[Brief explanation of drawings]

FIG. 1 is a top view of essential parts of an ultra-thin cold rolling mill embodying the present invention, FIG. 2 is a view from AA in FIG. 1, and FIG. 3 is a view from BB in FIG. 2. It is a diagram. 1 and 2 are the left and right legs of the drive side roll stand, 3 and 4 are the left and right legs of the work side roll stand, 15 is the recombinant fixed rail, 1
7 is a recombination moving rail, and 18 is a drive cylinder.

Claims (1)

[Claims] 1. A bridle roll for guiding the foil strip close to the work roll is provided between the drive side and work side housings in the rolling mill stand, and a pair of mutually parallel bridle rolls are fixed horizontally at appropriate height positions on each of the drive side and work side housings. A replacement fixed rail is provided, and a replacement moving rail is provided below the bridle roll and extends in the direction of the barrel of the work roll, and is moved between a standby position and a fixed rail connection position by a drive cylinder, and the replacement moving rail is provided. A foil strip rolling machine characterized in that both ends of the foil strip rolling machine are slidably engaged with and supported by a rolling machine stand part.