JPH0341844Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field] This invention is a rolling mill in which the work rolls can be offset in the direction of the rolling line. In particular, the present invention relates to a guide device for a rolling mill that prevents the present invention from entering a gap between a stripper guide and a header guide.

[Prior Art] Fig. 4 shows an example of a rolling mill in which work rolls can be offset in the rolling line direction, where 1 is a work roll, 2 is a work roll shaft box, 3 is a backing roll, and 4 is a rolling mill. The standby roll shaft box 5 is a housing, and offset cylinders 7 are installed in blocks 6, 6 fixed to the window portion of the housing 5, respectively, and the work roll 1 is moved by the operation of the offset cylinders 7. It is designed to be able to move together with the work roll shaft box 2 in the direction of the rolling line.

In such a rolling mill, a stripper guide 9 is installed between the left and right work roll shaft boxes 2 in order to guide the strip (or steel plate) 8 while preventing the tip from bouncing up or warping. However, header guides 10 that can be raised and lowered are provided between the housings 5, 5, respectively, and are arranged such that the stripper guide 9 and the lower guide plate 11 of the header guide 10 are continuous.

[Problems to be solved by the invention] However, when the work roll 1 is offset in the rolling line direction (upstream side in the figure) (offset amount e), the stripper guide 9 and the guide plate 11 on the opposite side of the offset are offset. Since a large gap s is formed between the strips 8 and 8, there is a risk that the tip of the strip 8 will enter the gap s.

[Means for Solving the Problems] The present invention provides a stripper guide between the axle boxes of work rolls that can be offset in the direction of the rolling line, and a header guide between the housings so as to be continuous with the stripper guide. In a rolling mill having a stripper guide between axle boxes of work rolls that can be offset in the rolling line direction, and a header guide between housings so as to be continuous with the stripper guide, the roll of the header guide Guide blocks having guide grooves extending substantially in the direction of the rolling line are fixed facing each other at both ends in the axial direction, and one end of the spacer frame is fitted into one of the guide grooves, and the other end of the spacer frame is fitted into the other guide groove. The spacer frame is supported so as to be movable in the rolling line direction, and the spacer frame and the header guide are connected via a cylinder extending in the rolling line direction. A comb-shaped notch is provided along the axial direction, and a protrusion formed at the lower part of the spacer frame is fitted into the notch so as to be movable in the rolling line direction.

[Operation] Therefore, by projecting the spacer frame from the header guide in accordance with the offset amount of the work roll, the gap between the stripper guide and the header guide is closed.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIGS. 1 to 3, there are guide blocks 1 at both ends of the stripper guide 9 side on the guide plate 11 constituting the header guide 10.
2 and 12 are fixed facing each other, and the guide blocks 12,
A spacer frame 17 is disposed between the guide plate 11 and the spacer frame 17, which can be moved in and out from the end surface of the guide plate 11 by the operation of a cylinder 13 installed on the guide plate 11.
Both ends thereof are slidably engaged with guide grooves 15 provided in the guide blocks 12, 12, respectively.

Further, a comb-shaped notch 16 is provided along the roll axis direction at an end position of the guide plate 11 on the side of the stripper guide 9, and the notch 16 includes:
The spacer frame 1 corresponds to the notch 16.
The protrusions 17 provided at the lower part of each of the parts 4 are movably inserted into each part.

With such a configuration, when the cylinder 13 is moved to expand or contract, the spacer frame 14 moves along the guide groove 15 of the guide block 12. Also, at this time, the protrusion 17 at the bottom of the spacer frame 14
go in and out from the end face of the guide plate 11 along the comb-shaped notches 16, respectively.

Therefore, as shown in FIG. 1, when the work roll 1 is offset upstream by an offset amount e,
By moving the upstream and downstream spacer frames 14 until they come into contact with the stripper guide 9, the projections 17 close the gaps s and s' between the stripper guide 9 and the guide plate 11.

In this way, when the gap s is closed, even if the tip of the strip 8 jumps up or bends back after passing, the strip 8 will not get into the gap s and will be smoothly guided downstream. Ru. Furthermore, when the work roll 1 is offset downstream, the gaps s and s' are similarly closed by the devices on the upstream and downstream sides.
Thus, the rolling operation can be carried out safely without any gap between the stripper guide 9 and the guide plate 11.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

[Effect of the invention] As explained above, according to the guide device of the rolling mill of the invention, it is possible to always close the gap between the stripper guide and the header guide regardless of the amount of offset of the work rolls. Therefore, even if the strip jumps or warps, the tip of the strip can be prevented from entering the gap, and the strip can be smoothly guided, which is an excellent effect.

[Brief explanation of drawings]

Fig. 1 is a cutaway side view showing the guide device of the rolling mill of the present invention, Fig. 2 is a view taken in the direction of - arrow in Fig. 1, and Fig.
The figure is a view taken along the - arrow in FIG. 2, and FIG. 4 is an explanatory diagram of a conventional example. 1 is a work roll, 2 is a work roll shaft box, 5 is a housing, 8 is a strip (or steel plate), 9 is a stripper guide, 10 is a header guide, 11
is a guide plate, 12 is a guide block, 13
14 is a cylinder, 14 is a spacer frame, 15 is a guide groove, 16 is a notch, and 17 is a protrusion.

Claims (1)

[Scope of utility model registration request] In a rolling mill that has a stripper guide between the axle boxes of work rolls that can be offset in the rolling line direction, and a header guide between the housings so as to be continuous with the stripper guide, the header guide is provided at both ends in the roll axis direction. , guide blocks provided with guide grooves extending substantially in the direction of the rolling line are fixed facing each other, and one end of the spacer frame is fitted into one of the guide grooves, and the other end of the spacer frame is fitted into the other guide groove, so that the spacer frame is rolled. The spacer frame and the header guide are supported so as to be movable in the rolling line direction, and the spacer frame and the header guide are connected via a cylinder extending in the rolling line direction. 1. A guide device for a rolling mill, characterized in that a comb-shaped notch is provided, and a protrusion formed at the lower part of the spacer frame is fitted into the notch so as to be movable in the rolling line direction.