JPH0153124B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rolling mill, and particularly to a rolling mill having rolls movable in the axial direction of the rolls.

In recent years, as a rolling mill for significantly improving shape control characteristics, a rolling mill has been proposed in which bending can be applied to both ends of a roll that is movable in the roll axis direction according to the width of the rolled material.

Such a rolling mill may be provided with a moving block that moves with the roll during rolling and for locating the bender, so that the roll can be bent at a predetermined position at the end even when the roll moves. is being attempted.

However, an extra member called a moving block is required, and this moving block moves largely according to the width of the rolled material so that it protrudes from the inside of the housing to the outside of the housing together with the rolls. This may complicate the area around the rolls, especially around the ends of the rolls, and may even impede roll replacement.

The present invention has been made in view of the above points, and its purpose is to compactly incorporate a movable member that moves in the axial direction together with a movable roll, secure space around the end of the roll, and reassemble the rolls. The aim is to provide rolling mills that can be used effectively.

In the present invention, the moving means and the moving member are arranged on the same side as the rotational driving means, and the moving member is arranged on the operation side opposite to the rotational driving means, and the moving means is a cylinder installed in the driving side housing. The driving-side moving member is connected to the cylinder, and by driving the cylinder while connected to the metal chock, moves in the roll axis direction together with the moving roll, and performs roll rearrangement. The shift block is sometimes disconnected from the metal chock and remains in the housing, while the operating side moving member is connected to the metal chock and moves in the roll axis direction together with the moving roll to change the rolls. The shift block is sometimes disconnected from the metal chock and remains in the housing to achieve the intended purpose.

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

An embodiment of the present invention is shown in FIGS. 1, 2, and 3. The rolling mill of this embodiment shown in the figure includes work rolls 1 and 2 that directly roll the rolled material 3, and intermediate rolls 1 disposed above and below the work rolls 1 and 2.
3, 14, and reinforcing rolls 28, 29 arranged above and below the intermediate rolls 13, 14. The ends of the reinforcing rolls 28 and 29 are supported by metal yokes 15 and 16, and the ends of the reinforcing rolls 28 and 29 are supported by metal yokes 30 and 31, respectively.

Metal chock 15 and 16 supporting intermediate rolls 13 and 14 are arranged so as to be able to move up and down inside shift blocks 17 and 18 which are attached to project blocks 7 and 8 so as to be movable in the roll axis direction. The shift block 17,
18 includes a hydraulic ram 19 for imparting increase bending to the intermediate rolls 13 and 14;
20, and hydraulic rams 21 and 22 for applying day crease bending. Further, the intermediate rolls 13 and 14 are connected to the spindle 3.
2, it is rotated by an electric motor (not shown).

Shift block 17 has metal chock 1.
A keeper plate 23 that can be inserted into and removed from the grooves 5 and 15' is provided. Therefore, the keeper plate 23 is inserted into the groove as shown in FIG.
6, the intermediate roll 13 can be moved together with the shift block 17 in the roll axis direction.

On the other hand, when changing the rolls, the keeper plate 23 is removed from the groove and the metal chock 15' and the shift block 17 are disconnected from each other, so that the shift block 17 can be moved into the housing 6.
The intermediate roll 13 and metal chock 15, 15' can be pulled out as a unit while remaining inside.

According to this embodiment, the shift block 17 and the cylinder 26 are provided in the housing 6 on the side where the means for rotationally driving the intermediate rolls 13 and 14 is present,
Since only the keeper plate 23' for disconnecting the metal chock 15 and the shift block 17' is provided on the operation side of the rolling mill, the area around the operation side housing can be made compact. This makes it possible to secure a sufficient space on the operation side, and also allows rolls to be easily changed since all shift blocks can be left in the housing when changing rolls. Furthermore, according to this embodiment, the shift blocks and cylinders are provided on both sides of the drive-side metal chock, so there is no need to complicate the means for shifting the intermediate roll, and the work of attaching and detaching the spindle to and from the intermediate roll is facilitated. Can be done. Furthermore, since the intermediate roll is driven, the work roll can be made smaller in diameter.

In the above-mentioned embodiment, the case where the intermediate roll of a six-high rolling mill is rotationally driven and moved in the axial direction of the roll is explained, but it can also be applied to a rolling mill with other number of stages or rolls other than the intermediate roll. Of course, it can be applied. Furthermore, although the case has been described in which separate shift blocks are provided on the drive side and the operation side, it goes without saying that these shift blocks may be integrated.

According to the present invention described above, the movable member can be compactly incorporated into the rolling mill, and the space around the end of the roll on the operation side and the housing can be secured, so this space can be used effectively, for example, for changing rolls. There is an effect that it can be done.

[Brief explanation of drawings]

FIG. 1 is a front view of a rolling mill showing one embodiment of the present invention, FIG. 2 is a - line view in FIG. 1, and FIG.
The figure is a - line view in FIG. 2. 1, 2...Work roll, 6...Housing, 1
3, 14... Intermediate roll, 15, 15'... Metal chock for intermediate roll, 17, 17', 18...
...Shift block, 23, 23'...Keeper plate, 26...Cylinder, 32...Spindle.

Claims (1)

[Claims] 1 includes at least one moving roll movable in the roll axis direction, driven by a rotational drive means, and rotatably supported by a metal chock, the moving roll being a moving roll provided in a housing; A rolling mill configured to be movable in the roll axis direction via a moving member movable in a direction parallel to the roll axis by a means, and a coupling release means for disengaging the coupling between the moving member and the moving roll, The moving means and the moving member are arranged on the same side as the rotational driving means, and the moving member is arranged on the operation side opposite to the rotational driving means, and the moving means is a cylinder installed in the driving side housing. The driving-side moving member is connected to the cylinder, and moves in the roll axis direction together with the moving roll by driving the cylinder while connected to the metal chock, and when the rolls are rearranged, It is formed by a shift block that remains in the housing after being disconnected from the metal chock, while the operating side moving member moves in the roll axis direction together with the moving roll while being connected to the metal chock, and when the rolls are rearranged, A rolling mill characterized in that it is formed by another shift block that remains within the housing after being disconnected from the metal chock.