JPS5961511A - Control device for rolling - Google Patents

Abstract

PURPOSE:To provide a control device capable of correcting the position of a rolling material quickly and accurately, by obtaining the positional difference between the rolling material and the rolling center of work rolls basing on the detected results of both width-end positions of the material at the inlet side of a rolling mill and the detected results of the shifted extents of work rolls. CONSTITUTION:Work rolls 1, 1' are shifted by roll shifting devices 5, 5' in conformity with the sheet width of a rolling material 2. The shifted extent is detected and inputted to a computing element 7, and the actual width-end position of the material 2 is detected by a sheet-end detector 6 and inputted to the device 7. The positional difference between the actual position of the material 2 and the proper position to a rolling mill is obtained by the element 7 basing on both signals. A controller 8 inputs the signal corresponding to the positional difference to adders 9, 9' to regulate left and right rolling-reduction devices 4, 4'. The amount of gaps at both width-ends of material 2 are respectively changed by said regulation, and the material 2 is corrected to the proper position by shifting it to the large gap side.

Description

[Detailed description of the invention] The present invention is suitable for rolling (1 to 1+:;
Related to.

When performing rolling (multiple C rolling), the portion of the workpiece that is in contact with the 1-L rolling mill width pane is elastically deformed, resulting in J-nidz 11 tubes, which are defective in the shape of rolling 4A.

In order to correct the shape defects caused by partial elastic deformation of this workpiece [-1-roll], in recent rolling mills, the opposing ends of the upper and lower work rolls are tapered, and the rolls are shifted to match the width of the rolled material. There is one in which the width end of the rolled material and the tapered portion of the work roll are made into an A-parallel shape so that partial elastic deformation of the work roll can escape through the tapered shape. In such a rolling mill, it is necessary to correctly place a large plate of rolled material at the rolling center of the upper and lower work rolls, and accuracy is required in millimeters. As shown in Fig. 1, if the rolling centers of the upper and lower work rolls 1.1' are separated from the center L' of the rolled material 2, an edge drop will occur at the right end of the rolled material 2 as seen in the figure, and an edge drop will occur at the left end. The effect of drop correction is lost, and furthermore, the rolling blades become unbalanced on the left and right sides of the rolled material, causing meandering.

Therefore, as shown in FIG. 2, rolling (A2 must be correctly centered with respect to the upper and lower work rolls 1, 1').

In view of such circumstances, the present invention is designed to constantly work the rolled material.
Rain detection results are obtained by detecting the positions of both width ends of the rolled material at the inlet side of the J and T rolling mill at the 1-1 rolling center of the rolling mill, and by detecting the shift l-m of the work roll. Based on this, find the positional deviation between the rolled material and the rolling center of the work roll, and if there is a positional deviation, change the size of the left side of the gear 7 knob of the work roll to find the position f of the C11 rolling mill. To provide a rolling control device that can be modified.

Now, with reference to FIG. 3, the actuality of the present invention/Il! I will explain an example.

u13 In the figure, 1.1' has upper and lower work rolls, and the work []-le is backed up by the backup 1 call 3, 3', and the work []-le is backed up by the backup 1 call 3, 3'.
, 1 both ends (C rolling force is transmitted through the roller 3.3' of the corner 11-1)
41 + this; ) j' + j Tari, and 1 no 1-1- rule 1, 1' Seifuku (set () l this 11-Rusino 1 to device ii !, , 5' J, (Axis direction (
This 17-91-1-rule (as if shifted by 1). Mark 1 on the [1-lift equipment V'15.5'
1-Line 1.1' shift drop detector (4)
(not shown) is built in, and a strip width detector G for detecting the positions of both width ends of the rolling mill 4J2 is provided on the inlet side of the rolling mill, and the quantity detector is connected to the controller 8 via the calculator 7. . The controller 8 is connected to the reduction device 4.4' via adders 9, 9'.
, the lowering devices 4, 4 based on the output signal from the arithmetic unit 7.
′.

A detailed description of the invention follows.

First, the work roll 1.1' is adjusted to the width of the rolled material 2 to be rolled, and the work roll 1.
− to make. This shift 1~ amount is sent to the rolling machine 1, is detected by the amount detector J, cc, and is also input to the computing unit 7, and is also sent to the rolling mill 2.
The actual width end position of J: is detected by the board width detector 6 and input to the calculator 7.

The calculation device 1 calculates the width end position of the rolling scoop 4 that should be with respect to the workpieces (1, 1') based on the signals from the shifter 1 to the suspension detector, and the calculation result is used to detect the plate width. The position difference is determined by comparing the position with the actual width end position detected by the controller 6. If the position difference is J5, the controller 8 manually inputs No. 13 corresponding to the positioning to the adders 9 and 9'. i i', -+)1-1・
Adjust device 4.4'. This L! 1 adjustment), the gear 17 gear speed at both width ends of the rolled material 2 changes, and the I-th ff, 4
42 L;L:l': tI moves to position h and is fixed at the proper position.

C work 11-le 1゜1 here in C Fig. 4 A, 1
The mechanism by which the C-rolled material 2 moves due to the half-change in V' is explained below.

As shown in Fig. 4r, when the left gear 17 is made more convenient than the right gear P, the workpiece [1-circumferential speed t of wheels 1 and 1'
:1 left side is equal, so GiX? The volume flow of I1 extension 4A 2, which is located between the left side J and the right side J in the tube and the constant 11.5, increases. At the Gitotsubu entrance (Jru board J'7
Gan right uniform~dori and rolling 4A 2), the side is pulled,
It leans as shown by the dotted line at the entrance in Figure 4. In this state (if you continue rolling, rolling 4A 2 will look like a solid line (the wide left side of the sawtooth lug, the side I\ will shift 5. Then, rolling with the left side I) It is possible to arbitrarily control the position of +A2 in the width direction.

Therefore, rolling can be carried out in a contemplative state to jFr as shown in FIG. 2.

In the above embodiment, the end of the workpiece [1-] is tapered, but it goes without saying that it may be formed with a parabolic curved surface or a step-like shape. According to the method, the position of the rolled material relative to the work rolls can be quickly and reliably adjusted, eliminating the need for delicate manual adjustments when changing the width of the rolled material, and improving the operating rate. In addition to improving the rolling mill, it is also possible to maximize the advantages of the rolling mill.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams showing the relationship between rolled materials such as work rolls with wrapper-shaped ends, Figure 3 is a detailed explanatory diagram of the present invention, and Figure 4 By adjusting the pitch between the work rolls, the rolled material can be adjusted to 11'/, FI I! There is an explanatory diagram C showing the mechanism l\ that performs the correction. 1.1' is the work l call, 2 is the rolled material, 3.3' is the bank 7 tube roll, 4, 4' is the rolling device, 5, 5' is the roll shift 1 device, 6 is the strip width detector, 7 is the 8 is a controller, and 9 and 9' are adders. Figure 3 Figure 4 (A) (B) Hanging Sleeves iJ-Written [Spontaneous] December 17, 1980 El 1.6□□-□ゎYa. 1. Kara+i ”'()゛j1fu! f'1. front 1981!If Patent Application No. 171321, Name of the invention Rolling control device 3, Person making the amendment Patent applicant 2-chome, Otemachi, 111-ku, Chiyo, Tokyo 2 No. 1 r009) Ishiyojimabo Maju J: Gyo Co., Ltd. 4th Director Uchigami, Chiyo 111-ku, Tokyo] 113 J゛ Item 5 No. 3 Yahagi No. 2 Pill Specification Claims column, column for detailed description of the invention,
Figure Im 1yil simple explanation column 6 Sodeichi contents 1, 4. ．． ．． ．． ．．゛(1) # on the statement! r Amendment to the scope of claims column, ';,
, −゛ ・・−一ノ/ １、 − As shown in the attached sheet. (11) Compensation in the Detailed Description of the Invention column of the specification (1) 1 plate width detector on page 4, line 2, line 13, line 17 to line 18 Detector” and correct it. (2) "1 good thing" in line 3 of page 6 has been corrected to 1- good thing, and that a plate edge detector may be provided on the exit side of the rolling mill. 1. Correction in the brief explanation column on page 36, line 19, "1" plate width detector" is corrected to 1-plate edge detector". 7 Addendum A (J Kisurui's Catalog (1) Supplementary Notes on Claims After E) 1 Claim 1) Rolling by shifting the work roll according to the width of the rolled material A rolling mill is provided with a foot 1 detector for detecting the width position of the rolled material in the entry side or the exit section, and the detector and the shift amount detector provided in the roll shift device of the rolling mill are connected to each other. Based on the detection results, the position difference between the actual position of the rolled material and the appropriate position relative to the rolling machine is determined, and the size of the caps on each of the left and right sides of the work roll is adjusted according to the position difference, and the width direction of the rolled material is adjusted. A rolling control device characterized in that it is configured to correct the position of the rolling control device.

Claims (1)

[Scope of Claims] 1) In rolling 1, in which the workpiece is shifted and rolled according to the width of rolling 1A, a width position of 2 months is placed on the entry side. A strip width detector is installed to detect the width of the sheet, and the detector and the roll gino 1 installed in the rolling gino 1 apparatus are connected to each other.
What detection is the detection detector? ! Roll the Ill bed to 111 (calculate the positional difference between the actual position of A and the appropriate position for the It roll, adjust the size of the gisep on each of the left and right sides of the work roll according to the position difference, and roll. A rolling control device characterized by Jf4 being formed to correct the widthwise position of the IA.