JPS58212807A - Mounting device of guide for rolling mill - Google Patents

Abstract

PURPOSE:To improve working efficiency and operating efficiency by changing and moving the roll calibers of a rolling mill exactly in conformity with the inlet and outlet guides for the rolling mill by moving only the body side of the rolling mill without changing the positions of a rolling pass line and said guides. CONSTITUTION:Rest bars 1, 1' for mounting the inlet and outlet guides 7, 7' for the rolling mill fixed with said guides in conformity with a rolling pass line on the inlet and outlet sides of rolling mill rolls 3 installed to the body 2 of the rolling mill stand provided with roll calibers 3a for rolling in plural rows are engaged and supported slidably by means of guide brackets 4, 5 for rest bars mounted on the side face of the body 2. The bars 1, 1' are fixed in the positions at a right angle to the rolling pass line by means of a rod 13 for positioning and fixing the rest bars, and body 2 is made freely movable together with the rolls 3 by means of a power cylinder or screw driving device 12 for moving, whereby the calibers 3a are made changeable.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a rolling mill in which the position of the roll hole shape can be changed without changing the position of the rolling pass line and the roll guide in and out of the rolling mill when changing the roll hole shape during rolling of strands such as long steel. This relates to a guide mounting device.

In general, each rolling mill stand with several or several rolling mill stands has multiple rows of groove-shaped roll holes corresponding to one dimension of the rolling shape. At this time, rolling is performed by switching to another roll hole shape.

Conventionally, when changing this type of a-hole hole type, as shown in Fig. ItA, the rest bar positioning for guide coverage fixed to the rolling mill stand υ was used as the mounting base, and the clamping device f@01, the guide mounting box (to), The guide fixing wedge (211') allows the kite (b) to be firmly attached to the roll hole shape and exit 1c
In addition to the need to change the roll hole shape, each of these requires disassembly, assembly, and addition or adjustment, making extremely troublesome work.

In other words, the guides fixed at the positions (a) and (b) in Figure 6 are disassembled each time the roll hole type is changed, and only (C) is moved to the artbr position. Assemble.

The installation diameter had to be aligned to match the rolling pass line.

In addition, there was a conventional method in which the position of the entry/exit log guide of a rolling mill was fixed in line with the rolling pass line, and the rolling mill stand was moved to change the roll hole shape, but this method is different from that of the present invention, which will be described later. The guide mounting base attached to the guide mounting rest bar was installed rising from a foundation separated from the rolling mill stand, and was clearly different in style from that of the present invention. That is, in this method, when replacing the A4 pressure stand, the guide set must be moved or disassembled.

In this way, not only is the troublesome work and time required to change the roll hole shape, but the waste required to adjust all the rolling mill stands is extremely large.
In addition, it goes without saying that production factories are expected to improve product quality, but expectations for improvements in the efficiency of factory work vehicles and transportation also account for a large proportion from the perspective of cost management. This is the reality.

In view of the above, the present invention is advantageous in that when replacing the rollner L shape for rolling strands of long steel, etc., the positions of the rolling pass line and the rolling mill entry/exit log guide are not changed (the rolling mill stand main body is moved to the hour wheel, In order to accurately and easily change the roll hole shape, a rest bar for attaching a pressure all guide, which is unprecedented in the conventional system, is used to replace the loading/unloading lockaid.

This eliminates +141 during movement, greatly shortens roll hole type switching time, and contributes to improved mill operating efficiency.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a guide mounting device for a rolling mill according to the present invention will be described below with reference to the drawings.

(1) af is the horizontal guide material platform (la) in the middle part
(la)' has a breath, and is parallel to its left and right Vcri upper do (1b
)(lb)' is a rest bar for mounting a rolling mill entry/exit log guide. (Roll hole shape for rolling in 21rt multiple rows (
3a) A pair of upper rolling mill rolls formed with +3)
The main body of the rolling mill stand that pivotally supports the 131 is equipped with the guide mounting rest bars (1) (
Each retaining guide surface (lb) of 17' (Large rest par installation guide bracket to sandwich and support lb,') 14)
The rest bar (1) for mounting the rolling 1 entry/exit log is installed between the rolling mill stand main body (21 and the rest bar mounting guide bracket l-14) (5). are fitted and supported.

Rolling mill stand main body (!) and rest bar installation guide bracket + 41 (61) Rest bar for installation of rolling mill entry/exit log guide (1) (1) T, t,
The rest bar positioning and fixing rods (l) connected to each side of these rods and the rod support 7 rackets aaW are used to fix the rest at a position at a slight angle to the rolling pass line. 1/li As mentioned above, it is fitted to the +M1 of the rolling mill stand 1I11 surface and the rest bar mounting guide bracket +41 tit, and is slidable when the rolling mill stand main body is moved, so that it can be moved at any position within the hole shape switching range. The structure makes it easy to set up.

Rolling mill worker log guide (7) and exit guide (7 each a, guide extension part (la) of the guide mounting rest bar (1) (l)' (a guide fitted on the laj so as to be adjustable in left and right movement) Inside the box (3) is the kite fixing wedge ((2)
The box (8) with m is fixed with R Epox, and the box with m (8) is firmly attached with the mounting bolt (9) and the mounting bolt αG as shown in Figure 9. In the case of multiple strands, the A guide set (Il!/Figure 1 shows the case of a rolling mill guide set/IJ) is made.

(To) Ii to m- of the rolling mill stand body +21! In the attached moving power cylinder, a. is a fixed mounting base of the cylinder, and (to) is a moving wheel attached to the side of the rolling mill stand body (21. lf#1. of the power cylinder. Alternatively, the rolling mill stand body (2) may be made movable by a screw drive or the like.

In the case of multiple strand rolling with the above configuration, the present invention provides the seventh
As shown in Fig. 2, the material to be rolled is placed on the main body of the rolling mill stand (
Rest bar for mounting the rolling 4 guide (7) (7)', rolling crawler +31131
Rolling pass line position (a) of roll hole shape (3a) (
b) The steel is passed through IWA and then rolled through several similar rolling mills to several mills to produce a long bar.

Next, when changing the roll hole shape of the abrasive material due to wear of the small hole shape or change in size f.

When the moving power cylinder (to) is operated to propel its piston rod to the right in FIGS. Rest bar (1) for attaching a rolling mill guide fixed at a position perpendicular to the rolling pass line by the rest bar 111 positioning fixing rod 0 and rod support bracket (B) (υ' retaining guide surface (lb) (
lb)' While sliding on the K bath, the wheel Uυ of the F section
and move through orbit. Therefore, there is no need to change the position of the rolling pass line and rolling mill entry/exit log guide.

Move the rolling mill stand main body (2) together with the roll (31131) to the required position by operating the moving power cylinder (to).
By moving by (C), the roll hole shape position (a)'<bf coincides with the rolling pass line and the rolling mill guide mounting position. That is, in other words, all the steps of changing the hole shape can be instantaneously performed in the entry/exit log guide movement position 1t(aγ(bf) by changing the hole shape.

Similarly, when the rolling pass line and rolling mill kite mounting position is in a single row (a), by moving the rolling mill stand body (21) with a moving power cylinder @.

Keeping the positions of the rolling pass line and the roll guide in and out of the rolling mill unchanged, the roll hole positions are (a)', (b), (b)
' Switch to any desired roll hole shape and roll
(I can do it.

By applying pressure in this way, the long steel is rolled by changing the roll hole shape of each of several similar rolling mills lined up.

Father, the guide material device of the rolling mill according to this invention can also be used when changing the rolls or replacing the stand.
on the kite unit (guide mounting box).

This is more convenient than the conventional method, as it can be done by simply separating the rest bar positioning rod while leaving the box fixing ZfttS and mounting bolt set.

As is clear from the above description, according to the present invention, only the rolling mill main body side is moved without changing the positions of the rolling pass line and the rolling mill entry/exit log guide, and the rolling pass line, rolling #, and roll guide are moved. The rolling mill roll can be moved according to the guide, and the shape can be changed and moved accurately, and changes can be made instantly and easily by changing the size rather than wear of the roll hole shape.

In particular, when a multi-strand, tandem rolling method is used for the rolling process, the number of rolling mills and mill guides becomes extremely large, and this requires more rapid changes in roll hole shape, rearrangement of rolling rolls, and removal of guides. Although the rolling time due to position changes, etc. increases, the present invention can significantly shorten these switching times, solve the problems of the conventional method, and at the same time improve factory work efficiency. The effects are significant, such as improved operating efficiency.

[Brief explanation of the drawing]

FIG. 1 is an overall plan view, partially cut away, showing an embodiment of a kite attachment device for a rolling mill according to the present invention. Figure fa1 is a front view of Figure 1, Figure 3 is a sectional view taken along line A-A of Figure 1, Figure q r
FIG. 6 is a detailed cross-sectional view taken along line H--H in the same drawing, FIG. S is a stop view showing an example of the roll hole shape of a rolling mill roll, and FIG. (1) (17'...Rest bar for mounting rolling machine entry/exit log guide, (2)...Rolling machine stand body, (3)...Rolling mill roll, (3a) ψ/roll hole shape, +41i61 @
・Rest bar guide bracket, (7)...Rolling mill population guide, (7)'...Folding machine exit guide, (to)...
Moving power cylinder or screw drive device, (L
l...Rest bar positioning and fixing rod, (1b),
(lb)'...Main guideway. Source Nakayama Steel Co., Ltd. Figure 1 Figure 2 15 1': I -1 Figure 3 Figure 4

Claims (1)

[Claims] l A rolling mill entrance/exit log with a firmly fixed rolling mill entry/exit log guide aligned with the rolling pass line on the entrance/exit side of the rolling mill roll, which is equipped with multiple rows of rolling roll holes and is axially mounted on the rolling mill stand body. The rest bar for installing the roll guide is engaged and supported by the slidable egg via the rest bar guide bracket attached to the side of the rolling mill stand body, and the second class rest par is fixed at a position perpendicular to the rolling pass line using the rest bar positioning and fixing rod. , the rolling mill stand main body is provided so as to be movable by the required stroke using a power cylinder for moving the rolls or a screw ground movement, etc., and the roll hole shape can be changed without changing the position of the rolling pass line and the guide of the rolling mill.
Guide mounting device for a rolling mill with a width of 71ft'.