JPH05329524A - Method for fitting guide for h-shaped steel and guide - Google Patents

Abstract

PURPOSE:To improve the working rate of a rolling equipment by reducing a time for changing guides attending the change of a rolling size when the guides are fitted on a rolling mill. CONSTITUTION:A turn-buckle type fixing metal 9 is set between upper and lower detaining arms 7, 8 provided on the sides of each guide to tighten a pair of an upper guide 1 and a lower guide 2 and they are fitted to an upper lift 5 and a lower lift 6 of an H-shape steel roll mill under such a state that the upper and lower guides are integrally fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting an H-section steel guide and a guide which can be easily attached to and detached from an H-section steel rolling mill.

[0002]

2. Description of the Prior Art In Japanese Utility Model Laid-Open No. 52-72538, a mounting shaft of a rolling mill is fitted with engaging recesses of a pair of upper and lower guide bodies so that the mounting shaft holds a guide for shaped steel. A technique for adjusting the interval between the H-section steel guides including the upper guide body and the lower guide body is disclosed.

[0003]

In the conventional guide,
When replacing the guide that fits this rolling size due to the rolling size change of the rolling mill, first remove the upper guide body and the lower guide body from the mounting shaft holding the guide, and then
Next, a new rolling size upper guide body and lower guide body are attached to the attachment shaft.

Since the work of mounting the engaging recesses of the guide on the mounting shaft is complicated and the work of mounting the upper guide body and the lower guide body needs to be performed separately, the upper guide body is changed with one rolling size change. Since the work of removing the lower and lower guide bodies and the work of attaching the upper guide body and the lower guide body of a new rolling size must be repeated a total of four times, the shape steel rolling machine with a mounting shaft There has been a problem that it takes a long time to replace the guide due to the change of the rolling size.

Further, in the prior art, since there is no means for finely adjusting the position of the guide fixed to the mounting shaft in the front-rear direction according to the position of the rolling roll, the tip portion of the guide is adjusted according to the position of the rolling roll. It was difficult to adjust the position in the front-back direction.

[0006] An object of the present invention is to shorten the time for exchanging the guide when the size of the rolling is changed and to increase the operating rate of the rolling equipment when the guide is attached to the rolling mill. Another object of the present invention is to always maintain a proper gap between the rolling roll and the tip of the guide even after the guide is attached to the rolling mill so that a product with high accuracy can be produced.

[0007]

According to a method for mounting a guide for H-section steel according to the present invention, a pair of upper and lower guides are supported by an H-section steel rolling mill in a state where they are integrally fixed by a connecting device. It is a thing.

In the guide for H-section steel of the present invention, a pair of upper and lower guides are fixed to each other to facilitate guide replacement, and the upper guide and the lower guide are simultaneously attached to and detached from the rolling mill. And a position adjusting device for moving the guide in the front-rear direction according to the rolling rolls. As the connecting device, for example, a turnbuckle type fixing metal fitting for connecting the side surfaces of the upper and lower guides,
There are levers etc. Further, in the position adjusting device for the front and rear direction of the upper guide and the lower guide, the upper guide is movable relative to the upper fixed bracket, and the lower guide is movable to the rolling roll side relative to the lower fixed bracket. The adjustment screw is rotatably supported, the lower adjustment screw is rotatably supported by the lower guide, and the upper fixing bracket or the upper guide can be moved by rotating the upper adjustment screw. The lower fixing bracket or the lower guide can be moved by rotating the lower adjusting screw.

[0009]

For example, in order to attach the upper guide and the lower guide to the upper guide elevating device and the lower guide elevating device of the rolling mill, adjust the positions of the tips of the upper guide and the lower guide so that they do not interfere with the rolling rolls. Then, by connecting the upper guide and the lower guide with a connecting device, the upper guide and the lower guide are fixed to the upper and lower parts integrally, and the upper and lower integrated upper guide and the lower guide are lifted by a crane, etc. Attach each to the guide lifting device and the lower guide lifting device.

In order to adjust the position of the upper guide and the lower guide to the required position of the rolling roll after the above-mentioned installation work is completed, the upper and lower adjusting screws may be rotated after uncoupling the upper and lower guides. The upper guide and the lower guide can be adjusted to the required position of the rolling roll according to the rotation direction.

When the position adjustment of the upper guide and the lower guide and the rolling roll is completed, for example, the upper fixing bolt and the lower fixing bolt are tightened to fix the upper guide and the lower guide to the upper fixing bracket and the lower fixing bracket, respectively.

[0012]

Embodiments of the present invention will be described with reference to the drawings. The guide is a pair of upper and lower guides 1 and 2
And a connecting device 3 between the upper and lower guides and a guide position adjusting device 4.

The upper and lower guides 1, 2 guide the H-shaped steel to the rolling rolls R, R while being supported by the upper guide elevating device 5 and the lower guide elevating device 6 of the H-shaped steel rolling mill. ..

The connecting device 3 connects the upper and lower guides 1 and 2 in a separable manner. In the illustrated example, the connecting device is composed of upper and lower engaging arms 7 and 8 and a fixing fitting 9. As shown in FIGS. 1 and 3, the upper and lower locking arms 7 and 8 are horizontally projected from the left and right side surfaces of the upper and lower guides 1 and 2, respectively, and the locking groove portions 7a and 8a are provided at the tips thereof. Has been formed. The upper locking arm 7 of the upper guide 1 and the lower locking arm 8 of the lower guide 2 are vertically opposed to each other.

The fixing member 9 is a turnbuckle type fixing member. The locking groove portion 7a of the upper locking arm 7 and the lower locking arm 8
The fixing metal fitting 8 is hung between the locking groove portion 8a of
The upper guide 1 and the lower guide 2 can be integrally fixed in the vertical direction by tightening the fixing fitting.

The guide position adjusting device 4 will be described. This position adjusting device adjusts the positions of the upper guide 1 and the lower guide 2 in the front-rear direction. An upper adjustment screw 10 and a lower adjustment screw 11 are horizontally rotatably supported on both upper and lower sides of the upper guide 1 and the lower guide 2, respectively. Further, as shown in FIG. 4, the concave portion of the upper fixing bracket 12 is slidably fitted to the T-shaped rail portion 1a formed at the upper end portion of the upper guide 1, and similarly, the lower guide 2 has a concave portion. The concave portion of the lower fixing bracket 13 is slidably fitted to the T-shaped rail portion 2a formed at the upper end portion. The upper adjusting screw 14 is fixed to the upper fixing bracket 12, and the upper adjusting screw 10 is meshed with the male screw. It is meshed with a male screw. For this purpose, the upper and lower adjusting screws 10,
By rotating 11, the upper and lower fixed brackets 1
The upper guide 1 and the lower guide 2 can be moved in the front-rear direction via 2 and 13.

The upper and lower guides 1 and 2 can be connected to the upper and lower fixing brackets 12 and 13 by two bolts 16 and 17.

As shown in FIG. 1, one end portion (right end portion) of the upper fixing bracket 12 is formed with a hook-shaped mounting portion 12a, and the upper guide lifting device 5 is mounted through this mounting portion. Further, a downward groove-shaped mounting portion 13a is formed at one end of the lower fixing bracket 13, and the lower fixing bracket 13 is mounted to the lower guide lifting device 6 via this mounting portion.

Next, the mounting and position adjusting operation of this guide will be described. In order to attach the upper guide 1 and the lower guide 2 to the rolling mill, the tips of the upper guide 1 and the lower guide 2 interfere with the rolling roll R by the upper adjusting screw 10 and the lower adjusting screw 11 as shown in FIG. After adjusting the position so that the upper guide 1 and the lower guide 2 are not locked, the fixing bracket 9 is locked between the upper locking arm 7 of the upper guide 1 and the lower locking arm 8 of the lower guide 2. After the upper and lower guides are connected and fixed in a vertically integrated manner, the integrated upper and lower guides are lifted by a crane or the like, and the upper fixing bracket 12 of the upper guide 1 and the lower fixing bracket 13 of the lower guide 2 are respectively moved to the upper guide lifting device 5 and the lower guide. Attach to the lifting device 6.

As described above, it is not necessary to separately attach the upper guide 1 and the lower guide 2 to the rolling mill, and the attaching work of the upper guide 1 and the lower guide 2 is completed by one attaching work.

After the mounting work is completed, the fixing metal fitting 9 is removed from the upper locking arm 7 and the lower locking arm 8, and the upper and lower guides are unlocked by the fixing metal fitting 9, and then the upper adjusting screen 10 The upper guide 1 and the lower guide 2 are adjusted to the required positions of the rolling roll R by the lower adjusting screw 11 and the lower adjusting screw 11, and the distance between the upper guide 1 and the lower guide 2 is adjusted to the upper guide lifting device 5 respectively. And the lower guide lifting device 6 adjust the position.

After the position adjustment of the upper guide 1 and the lower guide 2 in the front-rear direction with respect to the rolling roll R is completed, the fixing bolts 16 and 17 are tightened to fix the upper guide 1 and the lower guide 2 to the upper fixing bracket 12, respectively. And the lower fixing bracket 13 so as not to move in the front-back direction.

Also, when it becomes necessary to adjust the gap between the rolling roll R and the tip end portions of the upper guide 1 and the lower guide 2 by changing the pass line or the like during rolling, the upper adjusting screw 10 and the lower adjusting screw 10 are adjusted. Adjust the position with the screw 11.

In order to remove the upper guide 1 and the lower guide 2 from the rolling mill, the upper guide lifting device 5 and the lower guide lifting device 6 bring the upper guide 1 and the lower guide 2 close to each other without leaving a gap, and the upper adjusting screen 10 After adjusting the position of the upper guide 1 and the lower guide 2 with the lower adjusting screw 11 to the position shown in FIG. 1, the fixing metal fitting 9 is attached between the upper locking arm 7 and the lower locking arm 8, and the upper guide 1 1 and the lower guide 2 are fixed vertically, and then lifted by a crane,
If the upper fixing bracket 11 and the lower fixing bracket 12 supported by the upper guide elevating device 5 and the lower guide elevating device 6 are removed, the upper guide 1 and the lower guide 2 are removed at the same time.

[0025]

According to the mounting method of the present invention, since the guides are mounted on the rolling mill while the upper and lower guides are integrally fixed by the connecting device, the upper and lower guides can be simultaneously attached and detached in one operation. In addition, it is possible to shorten the time for exchanging guides due to the change in rolling size and increase the operating rate of rolling equipment.

Further, according to the guide of the present invention, since the guide is provided with the position adjusting device, even after the guide is attached to the rolling mill, the position of the gap between the rolling roll and the guide in the front-back direction due to the change of the pass line is adjusted. This makes it possible to always maintain a proper gap between the rolling roll and the tip of the guide to produce a highly accurate product.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which guides that are fixed to each other vertically are attached to a rolling mill.

FIG. 2 is a front view showing a state after the guide is completely attached.

FIG. 3 is an enlarged right side view of FIG.

FIG. 4 is an enlarged cross-sectional view taken along the line AA of FIG.

[Explanation of symbols] 1 upper guide 2 lower guide 3 connecting device 4 position adjusting device 5 upper guide lifting device 6 lower guide lifting device 7 upper locking arm 8 lower locking arm 9 fixing metal fitting 10 upper adjusting screw 11 lower adjusting screw 12 Upper fixing bracket 13 Lower fixing bracket

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takanobu Misawa, Takanobu Misawa, No. 3 Hikari, Kashima-cho, Kashima-cho, Kashima-gun, Ibaraki Sumitomo Metal Industries, Ltd. Kashima Steel Works (72) Inventor Nakamura, Nishi Ward, Sapporo-shi, Hokkaido 12-12-2 No. 13 Kotobuki Sangyo Co., Ltd. in the cold weather factory

Claims (2)

[Claims] 1. A method for mounting an H-section steel guide, characterized in that a pair of upper and lower guides and a lower guide are supported integrally on an H-section steel rolling mill in a state of being integrally fixed by a connecting device. 2. A connecting device for fixing the upper guide and the lower guide in a separable manner, and a front and rear position adjusting device for the upper guide and the lower guide. For the fixed bracket,
The lower guides are respectively movable to the rolling roll side relative to the lower fixed bracket, the upper guide screw is rotatably supported by the upper guide, and the lower adjust screw is rotatably supported by the lower guide. Supported,
The upper fixing bracket or the upper guide is movable by rotating the upper adjusting screw, and the lower fixing bracket or the lower guide is movable by rotating the lower adjusting screw.
Guide for shaped steel.