JP2961014B2 - Universal mill side guide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side guide device installed between a vertical rolling mill and a horizontal rolling mill of a universal mill in a rolling line to guide a rolled material.

[0002]

2. Description of the Related Art Conventionally, a vertical rolling mill of a universal mill is mounted close to a horizontal rolling mill, and the space between the vertical rolling mill and the horizontal rolling mill is extremely small, so that no side guide device is particularly provided.

For this reason, there is no means for restraining and correcting that the rolled material tries to bend after passing through the vertical rolling mill and before entering the horizontal rolling mill.

[0004] In general rolling mills, side guide devices conventionally installed on the front and rear surfaces of the rolling mill are usually installed on a foundation.

[0005]

As described above, in the conventional universal mill, the space between the vertical rolling mill and the horizontal rolling mill is extremely narrow and there is no space on the foundation for installing the side guides. There was a problem that the rolled material was bent on the exit side of the above, which had an adverse effect on the product quality after the horizontal rolling mill.

According to the present invention, a compact side guide device is installed between a vertical mill and a horizontal mill of a universal mill, whereby the bending of the rolled material between the vertical mill and the horizontal mill can be restrained and straightened. It is intended to be.

[0007]

According to a first aspect of the present invention, there is provided a universal mill having a vertical mill and a horizontal mill. And between the horizontal rolling mill and both or one of the housings of the rolling mills, a hydraulic cylinder or other appropriate driving means opens and closes a side guide provided at an end thereof to restrain and correct the rolled material. The cross-sectional shape of a rack bar or a guide bar that supports and guides the side guides is set in a circular shape (round bar shape).

[0008]

According to the side guide device of the universal mill of the present invention, the side guide supported by the housing of the rolling mill by driving a hydraulic cylinder and other appropriate driving means and the like becomes a rack bar or a guide bar that supports and guides the side guide. Opens and closes while being stroke guided.

In this case, the opening degree of the side guide is detected and set by a sensor built in a hydraulic cylinder or the like (or a sensor attached to a pinion shaft meshing with the rack in the case of a rack bar).

The rolled material that has passed through the vertical rolling mill attempts to bend before entering the horizontal rolling mill, and the side guide device provided between the two rolling mills withstands the impact force at the time of guiding the rolled material. Tighten the rolled material with a short stroke to perform restraint and straightening.

Further, since the rack bar or the guide bar for supporting and guiding the side guide is formed in a circular cross section, it can be easily guided by the cylindrical guide bearing provided in the cylindrical through hole formed in the housing post of the rolling mill. Yes,
The side guide device can be easily installed in a small space.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention. FIG. 1 is a plan view of a side guide device, FIG. 2 is a cross-sectional view taken along the line BB of FIG. 1, and FIG. It is sectional drawing.

In these figures, rack bar guide through-holes 3 and 4 are provided in a horizontal rolling mill housing post 1 and a vertical rolling mill housing post 2, respectively, and a guide bearing 5 is mounted in the holes.

Reference numeral 6 denotes a rolled material. After the rolled material 6 exits the vertical rolling mill, it enters a horizontal rolling mill.

[0015] Between the vertical rolling mill and the horizontal rolling mill, a side guide device is provided between the housings of the rolling mills.

Reference numeral 30 denotes a housing of the vertical rolling mill, 31 denotes a vertical roller of the vertical rolling mill, and 35 denotes a hydraulic pressure lowering cylinder of the roller 31.

At the end of the side guide device installed between the housings of the rolling mills, there is provided a side guide 11 having a built-in vertical roller 12, and the side guide 11 is connected to two rack bars 14, 14 connected thereto. And is driven by the hydraulic cylinder 13.

The idle type vertical roller 12 built in the side guide 11 slightly protrudes from the upper surface of the side guide 11,
It has a side guide wear prevention effect.

Each of the two rack bars 14 has a circular cross section, and a rack is machined on the outer surface.

Then, a cylindrical guide bearing 5 installed in through holes 3 and 4 formed in the housing post of each rolling mill, and a support bearing provided on a support 32 protruding from the housing 30 of the vertical rolling mill. The rack bar 14 is guided by a guide bearing 34 fitted to 33.

The two rack bars 14, 14 mesh with the pinion 15 at their lower positions, and the pinions 15, 15 are connected to a mechanical tie shaft 16 to form a tuning mechanism.

A hydraulic cylinder 13 for driving the side guide;
Both the support bearing 36 of the pinion 15 and the lower support bearing 33 of the rack bar 14 are provided on a support 32 projecting from the housing 30 of the vertical rolling mill.

Next, the operation of the apparatus of this embodiment will be described. In the side guide apparatus constructed as described above and arranged on the working side and the drive side, the side guide 11 It slides and opens and closes while being guided by the stroke.

The opening degree 21 of the side guide 11 is determined by a sensor built in the cylinder or a sensor attached to the pinion shaft (not shown).
Is detected and set.

In the thus configured side guide device, the side guide 11 tightens and restrains the rolled material 6 having passed through the vertical rolling mill before bending into the horizontal rolling mill by the side guide short stroke. I do.

FIG. 4 is a plan view showing an apparatus according to a second embodiment of the present invention. In FIG. 5 is installed.

On the other hand, in the present embodiment, a hinge pin 7 for rotating the side guide 11 'is provided on the housing post 2 of the vertical rolling mill, and the side guide 11' is opened and closed about the hinge pin 7.

Side guide 1 incorporating vertical roller 12
1 'is supported by a guide bar 14' and a hinge pin 7,
It is guided and driven by a hydraulic cylinder 13 'via a guide bar 14'. Note that, similarly to the first embodiment, the idle type vertical roller 12 slightly protrudes from the upper surface of the side guide 11 'and is provided to prevent the side guide from being worn.

In this embodiment, since the guide bar 14 'is circular, it is guided by the cylindrical guide bearing 5.

Next, the operation of the present embodiment will be described. In the side guide device constructed as described above and arranged on the working side and the driving side, the side guide 11 'is moved by driving the hydraulic cylinder 13'. It rotates and opens and closes while being stroke-guided by the guide bar 14 'around the hinge pin 7 attached to the end.

The connecting portion 17 between the side guide 11 'and the guide bar 14' is of an elongated hole type having a degree of freedom in the line direction.
It is configured to enable the 4 'linear motion.

The opening 21 'of the side guide 11' is detected and set by a sensor built in the cylinder.

In the side guide device having such a structure, the side guide 11 'rotated around the hinge pin 7 prevents the rolled material 6 having passed through the vertical rolling mill from bending before entering the horizontal rolling mill. Perform tightening restraint and straightening with a short stroke.

In the above embodiment, the case where the side guide device is supported by both the horizontal rolling mill housing and the vertical rolling mill housing has been described. However, the side guide device may be supported by only the horizontal rolling mill housing or only the vertical rolling mill housing. It is possible.

In this embodiment, the driving of the side guide is described as a hydraulic cylinder drive type, but an electric type can also be applied.

Although the vertical rollers 12 provided on the side guides are provided in each of the above-described embodiments, they may be omitted if the wear of the side guides is not particularly considered.

In the case of the first embodiment of the present invention, the rack bar 14 has a circular cross section because the rack can be provided over substantially the entire length of the bar and the overall length of the bar can be made shorter than other shapes. This is because it can be done.

[0038]

As described above, according to the side guide device of the universal mill of the present invention, since the side guide device is installed between the horizontal rolling mill housing and the vertical rolling mill housing, the impact force at the time of guiding the rolled material is obtained. A strong side guide supporting device that can withstand the rolling can be provided, so that bending of the rolled material does not adversely affect the product quality.

Further, since the rack bar or guide bar for supporting and guiding the side guide is a round bar type, it can be guided by a cylindrical guide bearing and can be used in a narrow space between a horizontal rolling mill and a vertical rolling mill. Can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view of a side guide device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3 is a side sectional view taken along the arrow A of FIG. 1;

FIG. 4 is a plan view of a side guide device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Horizontal rolling mill housing post 2 Vertical rolling mill housing post 3, 4 Through hole 5 Guide bearing 6 Rolled material 11, 11 'Side guide 12 Vertical roller 13, 13' Hydraulic cylinder 14 Rack bar 14 'Guide bar 15 Pinion 30 Vertical Rolling mill housing 32 Support table 33 Support bearing 34 Guide bearing

Claims (1)

(57) [Claims] In a universal mill comprising a vertical rolling mill and a horizontal rolling mill, between the vertical rolling mill and the horizontal rolling mill, the universal mill is supported by at least one of the housings of each rolling mill, and A side guide device is provided for opening and closing a side guide provided at its end by a hydraulic cylinder or other appropriate driving means to restrain and correct the rolled material, and a cross-sectional shape of a rack bar or a guide bar for supporting and guiding the side guide is circular. A universal mill side guide device having a shape (round bar shape).