JPS62127104A - Rolling device - Google Patents

Abstract

PURPOSE:To reduce an equipment cost and to improve the quality of product by providing a guide table which moves laterally with respect to the progressing direction of a rolling material and disposing guide side walls which can be adjusted in the space therebetween to meet the width of the rolling material on said table. CONSTITUTION:The guide table 6 which moves laterally with respect to the progressing direction of the rolling material 24 is provided along two pieces of tracks 4, 4 and a hydraulic cylinder 5 is disposed. The laterally movable side wall 8 which faces the guide side wall 7 erected and fixed to one side of the table 6 is further provided. The space between the side walls 7 and 8 is made freely adjustable by means of a hydraulic motor 12 and a worm reduction gear box 11. Since the final pass of an intermediate rolling mill 1 is made continuous with the finishing train by such mechanism, the distance between the two rolling mills 1 and 2 is considerably reduced. The equipment cost of the factory is thus reduced and the temp. drop of the rolling material is decreased, by which the product quality is improved.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is a method of continuous rolling and centerless rolling of an intermediate row rolling device and a finishing row rolling device for rolling and forming general shaped steel sections and plates. This article relates to improvements to rolling mills that will be installed in the future.

Conventional technology Conventionally, plate rolling equipment is divided into rough rolling, intermediate rolling, and finishing rolling rows.In particular, intermediate rolling mills (mills) and finishing row rolling mills (mills) are all mills in one row on the rolling line. There were no cases where they were installed consecutively, and they were discontinuous.

In addition, when rolling a plate, as shown in Fig. 9, the rolling mill is arranged so as to roll the plate with the center of the mill as a reference, with a guide that only adjusts the width in the width direction. There are no examples of centerless rolling being adopted.

Problems to be Solved by the Invention As mentioned above, the reason why conventional intermediate rolling mills (mills) and finishing row mills (mills) are not installed in series is that the ratio of the area reduction rate of the rolled material is The rolling mill is larger than the finishing row mill, and the rolling progress speed is significantly different. Therefore, the intermediate rolling equipment is used to perform several levering baths and roll forming before being passed through the finishing row mill. This is because a considerable amount of space is required between the equipment and the finishing row rolling equipment, resulting in an increase in the overall length of the factory and high equipment and construction costs.

In addition, plate rolling was configured to roll based on the center of the rolling mill (mill) regardless of the width of the rolled material (product), so the overall length of the rolling equipment became long and centerless rolling was not possible. There were problems such as.

The present invention was proposed in view of the above circumstances, and
The purpose of this is the intermediate rolling mill (
The purpose is to convert the final pass of the rolling mill into a finishing row mill (tandem) and to make centerless rolling an oJ function.

Means for Solving the Problems The present invention, as shown in FIG. 2) is moved from side to side by a hydraulic cylinder (5) with respect to the course of the rolling mill.
) and guide side walls (71, 18+) facing each other on the table and whose mutual spacing can be freely adjusted via the drive device +91,191 in accordance with the width of the rolling 1ta. The intermediate rolling mill (mill) (1) and finishing row mill (mill) (2) are arranged in series by installing guides (3) between them, and the pass line is set by the front and rear guides (3) of the rolling mill. It is configured to switch between the two.

Working Intermediate rolling mill (mill) (1) and finishing row rolling mill (mill) (2)
) are arranged in a continuous line through the front and rear guides (3) of the rolling mill, so the guide table (6) is moved by operating the hydraulic cylinder (5), and the drive bag @ +91
The distance between both guide side walls +71 and +81 is adjusted according to the width of the rolled material, and the final pass of the levering bath in the intermediate rolling mill (mill) (1) is continuous (tandem) with the finishing row.
By converting the rolling material of common steel sections such as angle steel, H-beam steel, and channel steel (231) into the final pass line of the intermediate rolling mill (mill) (1) to the finishing row rolling mill (mill )(
2) is rolled and formed through the caliber of the upper and lower rolls,
Therefore, the distance between the intermediate rolling mill (mill) (1) and the finishing row mill (mill) (2) can be significantly shortened.

Also, when rolling a plate, if the width of the rolled material is wide,
Intermediate rolling mill (mill) (1) and finishing row mill (mill) (2)
) The guide table (6) is moved by the hydraulic cylinder (5) to the track (41, (4)) so that the rolling material 1 passes through the mill center (8).
The driving device (9) moves the guide side walls (7) to the center along the guide table 16), +8
By performing the rolling operation by setting the interval 1 according to the width of the rolled material (product) based on the center of the mill, continuous rolling is performed from the center of the mill to the plate and finishing row.

In addition, when the width of the rolled material (product) during plate rolling is narrow, an intermediate rolling mill (mill) (1) and a finishing row mill (mill) are used.
The guide stand (6) of the rolling mill front and rear guide (3) installed between (2) and (4) is moved by a hydraulic cylinder (5).
While moving laterally along (4), the driving bag ff +9
1, the guide side wall +81 is connected to the screw shaft u61. surface,
By the rotation of III, it is moved parallel to the guide side wall (7), narrowing the space between both guide side walls +71 and +81 to the width of the rolled material, and biasing it to one side of the roll body length of the rolling mill through both guide sides +71.181. It is possible to carry out continuous rolling, and centerless rolling is also possible at the same time.

Example Next, embodiments of the present invention will be described based on the drawings.

(1) is the intermediate rolling mill (mill) at the end of the intermediate rolling row, (2)
(3) indicates the finishing row rolling mill (mill) located in series with the intermediate rolling mill (mill) (1), and the working row indicates the center line of the mill. The rolling mill front and rear guides to be installed include a guide stand 16+ that is moved left and right along two tracks (4) and (41) by the operation of a hydraulic cylinder (5), and a guide stand 16+ on this guide stand (6). It is composed of a guide side wall (7) that is fixed upright on the side, and a guide side wall (8) that is erected so as to be able to move left and right on a guide stand (6) in opposition to this guide side wall (7), Both guide side walls (7)
, (81) can be freely adjusted by the drive device (9).

Figures @2 and Figures @3 are the rolling mill front and rear guides (5) and both guide side walls +7), +81, and the drive device that adjusts the distance between them (in the explanatory diagram of 91, the guide side walls +7), +8
A shaft fixing device u0 and a worm reducer box (6) are installed above and below the guide stand (6) between 1 and 2, respectively, and the worm reducer box (b) is rotated by a hydraulic motor concave. (1
7H6 shafts are supported, and these screw shafts t161. +1
On both sides of 71, four guide side walls (7) and (8) are mounted. In addition, the shaft fixing device fiCI has a guide shaft t18) inserted into both guide side walls i7) and +81 at intervals, and a screw shaft with opposite screws on the left and right screwed across both guide side walls +71 and 181. 0! It supports J.

Both ends of the screw shafts (161 and 09 are linked by a transmission shaft (2) and ■ through a bevel gear j, respectively, and the guide side wall (7)
and -8) the guide side walls +71, +
This constitutes a driving aid #+9) in which the 81 interval can be freely adjusted.

Effects of the Invention As explained above, the present invention connects an intermediate rolling mill (mill) and a finishing row rolling mill (mill) through the front and rear guides of the rolling mill, and also adjusts the left and right movement of the front and rear guides of the rolling mill. By making it possible to freely adjust the distance between the guide side walls according to the width of the rolled material, the final pass of the reversing pass in the intermediate rolling mill (mill) can be continuous (tandem) with the finishing row, and the intermediate Rolling mill (mill) and finishing row rolling mill (
Since the distance between rolling mills can be shortened without any problems, the overall length of the rolling equipment can be shortened and construction costs can be reduced. In addition, the short distance between the intermediate rolling mill (mill) and the finishing row mill (mill) reduces the temperature drop in the rolling mill, which improves the dimensional accuracy and shape of the product and makes temperature control easier. Therefore, it is possible to manufacture products with excellent thermal history, and there are advantages such as reduction in power costs.

Furthermore, when rolling a plate (plate-shaped), conventional rolling was done based on the center of the mill, but when rolling a plate-shaped product, this equipment allows centerless rolling by guiding the rolled material with a guide using a sequence interlocking system. Because I made it possible,
Rolling can be performed at any position along the roll body length, extending the life of the rolls, reducing roll costs, shortening roll changeover time, and improving work efficiency. Further, by extending the life of the rolls, there are advantages such as the reduction in manufacturing costs at the roll shop and the reduction in the number of rolls in stock.

The scope of adoption of guides based on sequence interlocking can be applied to both intermediate rolling equipment and finishing rolling equipment.In addition, in centerless rolling of plates (plates), it is applicable to rolling with the mill centers of intermediate rolling equipment and finishing rolling equipment aligned. In the case of rolling that coincides with the center of the rolled material, and further, in the case of 1-rolling, the mill center of the intermediate rolling equipment and the mill center of the finishing row rolling equipment can be rolled by hot plasticity even if they coincide or do not match.

[Brief explanation of drawings]

′? X/Figure is an explanatory diagram showing one embodiment of the device of the present invention, the second
Figure 9 is an explanatory diagram of the front and rear guides of the rolling mill used in the device of the present invention, Figure 9M3 is a configuration diagram schematically showing the drive device for adjusting the guide side wall interval of the guide, and Figure 9 is the conventional method used in plate rolling. A schematic diagram showing a rolling device. (1)...Intermediate rolling mill (mill), (2)...Finishing row rolling mill (mill), +31...Rolling mill front and rear guides, (4)...
- Track, (5)... Hydraulic cylinder, 16)... Guide stand, (7), (81... Guide side wall, (9)... Drive device.

Claims (1)

[Claims] 1. In rolling equipment, rough and intermediate rolling mills (mills),
The finishing row rolling mill (mill) is equipped with a long and narrow guide table that is moved left and right by a hydraulic cylinder along the path of the rolled material, and a long and narrow guide table that faces left and right on the table, and whose mutual spacing can be freely adjusted to correspond to the width of the rolled material. A rolling mill in which front and rear guides, each having a guide side wall that can be freely adjusted via a drive device, are installed between the front and rear guides, and are continuously installed in the direction of progress of the rolled material, so that the pass line can be switched.