JP3043898B2 - Automatic input system for roll specifications of rolling mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling mill for automatically inputting specifications of individual rolls after repair grinding incorporated in a rolling mill stand to a pass line adjustment control device, a reduction control device, and a rolling control device. Machine automatic specification system.

[0002]

2. Description of the Related Art In recent years, there has been an increasing demand for continuous rolling equipment, and it has become necessary to reduce the time required for changing rolls in a rolling line. Therefore, roll specifications after repair grinding to be incorporated into the rolling mill stand, that is, data such as the roll diameter and roll roughness of the roll, pass line adjustment control device,
There has been a demand for accurate and rapid input to the reduction control and the rolling control.

Although there is no pass line adjusting device that satisfies such a demand, there is a step line type adjusting device having a large adjustment amount as disclosed in Japanese Patent Application Laid-Open No. Sho 53-28065. This is a combination of a wedge-type rocker plate and a step-type rocker plate installed between the roll housing and the upper reinforcing roll, so that the pass line can be adjusted steplessly. The pass line height is adjusted by manually inputting the roll diameter to be incorporated.

[0004]

As described above, the rolling equipment capable of accurately and quickly inputting the roll specifications after the repair grinding to the pass line adjustment control device, the rolling reduction control device, and the rolling control device is disclosed. Previously not.

In the apparatus described in Japanese Patent Application Laid-Open No. 53-28065, the operator manually inputs the roll specification data such as the roll diameter and the roll roughness of the roll one by one. There is a risk that rolling according to a schedule may not be performed, and there is a problem that a product cannot be produced as planned. In addition, there was a risk that the roll line was set at an incorrect height due to an error in the input of the roll diameter by the operator, and the roll block was damaged due to the contact between the roll block and the project block attached to the roll stand.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to eliminate defects caused by human error when an operator inputs a roll specification after repair grinding, and to provide a safe and highly reliable rolling method that meets the roll specification. It is to provide a roll specification automatic input system capable of performing the following.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned object, the present invention provides a roll grinding device for repairing and grinding a roll, and a pass line for adjusting a height of a pass line according to a roll diameter to be incorporated in a rolling mill stand. An adjustment control device, a rolling control device that adjusts a rolling position according to a roll diameter and a rolling force incorporated in the rolling mill stand, and a rolling control device that controls a rolling speed according to a previously planned rolling schedule. In the roll specification automatic input system of the machine, the first reading means installed in the roll grinding device, for reading the roll diameter and roll roughness of the roll that has undergone repair grinding and the roll symbol marked on the roll, Storage means for automatically storing a roll diameter, a roll roughness, and a roll symbol read by the first reading means; Second reading means for reading the roll symbol of the roll immediately before incorporating the roll into the stand; and outputting the roll diameter corresponding to the roll symbol of the roll read by the second reading means to the pass line adjustment control device. And means for performing the operation.

Preferably, the roll specification automatic input system of the rolling mill further includes means for outputting a roll diameter corresponding to the roll symbol of the roll read by the second reading means to the rolling reduction control device.

Preferably, the automatic roll specification input system of the rolling mill further outputs a roll diameter and a roll roughness corresponding to the roll symbol read by the second reading means to the rolling control device. Having.

[0010] The second reading means may be provided on a roll changing cart for transporting the roll to the rolling stand, or may be configured to automatically mount the roll on the roll changing cart. It may be provided in a roll transport device.

[0011]

The roll diameter, the roll roughness and the roll symbol are read and automatically stored after the repair grinding of the roll, and the roll symbol is read immediately before the roll is incorporated into the rolling mill stand, and the roll corresponding to the roll symbol is read. Since it has a means for outputting the diameter or roll roughness to the pass line adjustment control device, the reduction control device, and the rolling control device, the pass line and the reduction position (reduction amount) can be quickly and accurately set to an appropriate position. be able to. Therefore, it is possible to perform rolling under appropriate conditions and schedule without causing an incorrect roll specification to be input due to an operator's manual input error and causing a problem.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a roll specification automatic input system for a rolling mill according to an embodiment of the present invention will be described below with reference to FIG.
As shown in FIG. 1, the present system is roughly composed of a roll specification automatic input device 1, a pass line adjustment control device 8, a rolling reduction control device 17, a rolling control device 23, and data transfer means between these devices. I have. Further, a mechanism for adjusting the pass line in accordance with a command from the roll repair grinding device 3, a roll symbol automatic reading device 7, a pass line adjustment control device 8, and a mechanism for setting a rolling position (a rolling amount) in accordance with a command from the rolling control device 17. And a mechanism for setting the rolling speed in accordance with a command from the rolling control device 23.

Among these, the roll repair / grinding device 3 includes a roll grinder 3a, a roll diameter automatic measuring device 4 for reading the roll diameter Di, a roll roughness automatic measuring device 5 for reading the roll roughness Ri, and marking on the roll. Roll symbol Ni
, And a transfer unit that transfers roll specification data such as a roll diameter Di, a roll roughness Ri, and a roll symbol Ni to the roll specification automatic input device 1. Under such a configuration, roll 2
Is subjected to repair grinding by the roll grinder 3a, and thereafter, the roll diameter Di is measured by the automatic roll diameter measuring device 4, the roll roughness Ri is measured by the automatic roll roughness measuring device 5, and the automatic reading device 6 is operated by the operator. The roll symbol Ni marked on the roll is read and output and stored in the roll specification automatic input device 1.

The roll symbol automatic reading device 7 is installed on a roll changeable carriage 22 and is provided on a rolling mill stand 2.
Immediately before the roll is incorporated into the roll 1, the roll symbol Nj of the roll 2 assembled in the roll chock and mounted on the roll changing carriage 22 is read by an operator's instruction and transferred to the roll specification automatic input device 1. In response to this, the roll specification automatic input device 1 compares the roll symbol Nj read by the roll symbol automatic reading device 7 with the roll diameter Di, roll roughness Ri, and roll symbol Ni stored after the above-described roll repair grinding. The roll diameter Dj is selected and output to the pass line adjustment control device 8 and the reduction control device 17, and the roll diameter Dj and the roll roughness Rj are output to the rolling control device 23.

The pass line adjustment controller 8 adjusts the pass line based on the roll diameter Dj input by the automatic roll specification input device 1. That is, set values Sw (j) and Sr (j) of the wedge 11 and the stepped rocker plate 12 are calculated, and the solenoid valves 13 and 14, the cylinders 15 and 16, and the detectors 9 and 10 correspond to the calculated values. 1
1. Set the stepped rocker plate 12.

The rolling control device 23 calculates the rolling load Pj based on the roll diameter Dj and the roll roughness Rj input by the automatic roll specification input device 1, and calculates the rolling reduction control device 1.
7 is output. Further, the roll diameter Dj and the roll roughness R
j is collated with the roll specification of the previously planned rolling schedule, and when a roll specification different from the previously planned rolling schedule is input, the rolling control device 23 sets the rolling schedule in accordance with the input roll specification. The rolling speed Vj is calculated so as to change the rolling speed, and the rotation speed of the driving motor 23a installed as a roll driving mechanism is controlled.

The rolling reduction device 17 calculates the rolling reduction δ from the roll diameter Dj input by the automatic roll specification input device 1 and the rolling load Pj input by the rolling control device 23.
j, and the roll-down positions Sjw (j) and Sjd (j) are calculated from this value and the roll diameter Dj. This Sjw
The servo valve 18 is driven by the values of (j) and Sjd (j), and the pressing down ram 20 having the detector 19 is set by the operation of the servo valve 18.

The operation of the present system having the above configuration will be described with reference to FIG. FIG. 2 is a flowchart from when the operator gives an instruction to read the roll specifications to when the rolling mechanism conditions are set. First, in step 101 of FIG. 2, after the repair grinding of the roll 2, the operator gives an instruction to read the roll specifications such as the roll diameter Di, the roll roughness Ri, and the roll symbol Ni. It is stored in the automatic input device.

Thereafter, when the operator issues an instruction to read the roll symbol Nj in step 103, the roll symbol Nj of the roll 2 assembled in the roll chock is read by the roll symbol automatic reader 7 and input to the roll specification automatic input device 1. Is done. In step 4,
In step 102, the roll diameter Di and the roll roughness Ri stored in the roll specification automatic input device 1 corresponding to Nj are read out, and the roll diameter Dj is stored in the pass line adjustment control device 8 and the reduction control device 17. And the roll diameter Dj
And the roll roughness Rj are output to the rolling control device 23. In step 5, the set value Sw (j) of the wedge 11 is determined based on the roll diameter Dj input to the pass line adjustment control device 8.
And the set value Sr (j) of the rocker plate 12 with a break is calculated. In step 6, the rolling load Pi is calculated based on the roll diameter Dj and the roll roughness Rj input to the rolling control device 23 and output to the rolling-down control device 17. In step 7, the rolling speed Vj is calculated based on the roll diameter Dj input to the rolling control device 23. In step 8, the reduction amounts δw (j) and δd (j) of the work roll and the drive roll are calculated based on the roll diameter Dj and the rolling load Pj input to the reduction control device 17, and further, this value and the roll diameter Dj are calculated. From these, the respective roll-down positions Sjw (j) of the work roll and the drive roll
Sjd (j) is calculated.

Thereafter, when the operator gives a work start instruction in step 109, the wedge 11 is sent in step 110.
Is set and the set value Sr (j) of the rocker plate 12 with a break is output, and the wedge 12 and the rocker plate 11 with a break are set in step 111 in accordance with these values to adjust the pass line. Is performed. When the pass line adjustment is completed, step 11
In step 2, the roll position Sjw (j) of the work roll and the roll position Sjd (j) of the drive roll are output, and the position of the servo valve 20, that is, the position of the screw ram 19 is set in accordance with these values. In step 113, the rolling speed Vj is output, and the drive motor 23a is controlled in accordance with this value. As described above, the setting of rolling conditions and the rolling operation corresponding to the roll specifications are performed.

Next, a roll specification automatic input system for a rolling mill according to another embodiment of the present invention will be described with reference to FIG. In the present embodiment, the roll symbol automatic reading device 7
The configuration is the same as that of the embodiment shown in FIG. FIG.
After the repair grinding is completed, the roll 2 is assembled into a roll chock, and then is conveyed to the roll changeable carriage 22 by the roll conveying device 24. The roll symbol automatic reading device 7 is installed in the roll transport device 24, and reads the roll symbol Nj of the roll 2 according to an operator's instruction immediately before incorporating the roll into the rolling mill stand 21. Forward. Hereinafter, with the same configuration and method as described in FIG.
Roll diameter Dj and roll roughness R corresponding to roll symbol Nj
j is transferred from the roll specification automatic input system to the pass line adjustment control device 8, the reduction control device 17, and the rolling control device 2
3 and outputs the data after calculation, thereby adjusting the pass line and setting the rolling position (rolling amount).

In this embodiment, in step 101 and step 103 in FIG. 2, the operator manually gives instructions to read each data. However, after the repair grinding of the roll is completed or the roll is assembled into the roll chock. After the end, a reading instruction corresponding to steps 101 and 103 in FIG. 2 may be automatically performed.

According to the present embodiment, the roll diameter Di, the roll roughness Ri, and the roll symbol Ni are stored in the roll specification automatic input system 1 after the roll repair grinding, and immediately before the roll is assembled into the rolling mill stand 21. By reading the roll symbol Nj and outputting the roll diameter Dj or the roll roughness Rj corresponding to the roll symbol to the pass line adjustment control device 8, the reduction control device 17, and the rolling control device 23, the pass line and the reduction position are determined. (Reduction amount) can be set to an appropriate position quickly and accurately. Therefore, it is possible to perform rolling under appropriate conditions and schedule without causing an incorrect roll specification to be input due to an operator's manual input error and causing a problem.

[0024]

According to the present invention, the roll specification is stored in the automatic roll specification input system after the repair grinding of the roll, and the roll symbol is read immediately before the roll is incorporated into the rolling mill stand. By outputting the roll specification to each device that controls the rolling, the pass line and the reduction position (reduction amount) can be quickly and accurately set to an appropriate position. Therefore, there is no problem caused by an operator's manual input error, and highly reliable rolling that is safe and conforms to roll specifications can be performed.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an automatic roll specification input system for a rolling mill according to an embodiment of the present invention.

FIG. 2 is a flowchart from when an operator gives an instruction to read a roll specification to when various conditions of a rolling mechanism are set.

FIG. 3 is a conceptual diagram showing a roll specification automatic input system of a rolling mill according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roll specification automatic input device 2 Roll 3 Roll grinding device 3a Roll grinding machine 4 Roll diameter automatic measurement device 5 Roll roughness automatic measurement device 6 Automatic reading device 7 Roll symbol automatic reading device 8 Pass line adjustment control device 17 Pressure reduction control device 21 Rolling mill stand 22 Roll changing cart 23 Rolling control device 24 Roll transport device

Continuation of the front page (51) Int.Cl. ⁷ Identification code FI G06F 19/00 G06F 15/46 (72) Inventor Kenichi Hirayama 1-1-1, Edamitsu, Yawatahigashi-ku, Kitakyushu-shi, Fukuoka Nippon Steel Corporation (72) Inventor Akira Mori 1-1-1, Edamitsu, Yawatahigashi-ku, Kitakyushu-shi, Fukuoka Prefecture Inside Nippon Steel Corporation Yawata Works (56) References JP-A-62-275503 ( JP, A) JP-A-4-284907 (JP, A) JP-A-4-9203 (JP, A) JP-A-55-77914 (JP, A) JP-A-54-14356 (JP, A) 60-71409 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B21B 31/20 B21B 28/02 B21B 31/08 B21B 37/00 B21B 37/00 BBH G06F 19/00

Claims (7)

(57) [Claims] 1. A roll grinding device for repairing and grinding a roll, a pass line adjustment control device for adjusting a pass line height in accordance with a roll diameter incorporated in a rolling mill stand, and a roll diameter and a roll diameter incorporated in the rolling mill stand. In a roll specification automatic input system of a rolling mill having a rolling control device that adjusts a rolling position in accordance with a rolling force and a rolling control device that controls a rolling speed according to a previously planned rolling schedule, the rolling mill is installed on the roll grinding device. First reading means for reading the roll diameter and roll roughness of the roll subjected to repair grinding and a roll symbol marked on the roll; and a roll diameter, roll roughness and roll read by the first reading means. Storage means for storing a symbol and a roll symbol of the roll immediately before incorporating the roll into the mill stand. Second reading means for reading;
Means for outputting a roll diameter corresponding to the roll symbol of the roll read by the second reading means to the pass line adjustment control device, wherein a roll specification automatic input system for a rolling mill is provided. 2. The rolling mill according to claim 1, further comprising means for outputting a roll diameter corresponding to the roll symbol of the roll read by the second reading means to the rolling-down control device. Roll specification automatic input system. 3. The apparatus according to claim 1, further comprising: means for outputting a roll diameter and a roll roughness corresponding to the roll symbol read by the second reading means to the rolling control device. Automatic input system for roll specifications of the described rolling mill. 4. The rolling mill according to claim 1, wherein said second reading means is provided on a roll changing cart for transporting said rolls to said rolling stand. Roll specification automatic input system. 5. The roll transport device according to claim 4, wherein said second reading means is provided in a roll transport device configured to automatically load rolls on the roll changing cart. 3. The automatic roll specification input system for a rolling mill according to any one of the items 3. 6. A roll grinding device for repairing and grinding a roll, a pass line adjustment control device for adjusting a pass line height according to a roll diameter to be incorporated in a rolling mill stand, and a roll diameter and a roll diameter to be incorporated in the rolling mill stand. In a roll specification automatic input system of a rolling mill having a rolling control device that adjusts a rolling position in accordance with a rolling force and a rolling control device that controls a rolling speed according to a previously planned rolling schedule, the rolling mill is installed on the roll grinding device. First reading means for reading the roll diameter and roll roughness of the roll subjected to repair grinding and a roll symbol marked on the roll; and a roll diameter, roll roughness and roll read by the first reading means. Storage means for storing a symbol and a roll symbol of the roll immediately before incorporating the roll into the mill stand. Second reading means for reading;
Means for outputting a roll diameter corresponding to the roll symbol of the roll read by the second reading means to the rolling-down control device, wherein a roll specification automatic input system for a rolling mill is provided. 7. A roll grinding device for repair-grinding a roll, a pass line adjustment control device for adjusting a pass line height in accordance with a roll diameter incorporated in a rolling mill stand, and a roll diameter incorporated in the rolling mill stand. In a roll specification automatic input system of a rolling mill having a rolling control device that adjusts a rolling position in accordance with a rolling force and a rolling control device that controls a rolling speed according to a previously planned rolling schedule, the rolling mill is installed on the roll grinding device. First reading means for reading the roll diameter and roll roughness of the roll subjected to repair grinding and a roll symbol marked on the roll; and a roll diameter, roll roughness and roll read by the first reading means. Storage means for storing a symbol and a roll symbol of the roll immediately before incorporating the roll into the mill stand. Second reading means for reading;
Means for outputting a roll diameter and a roll roughness corresponding to the roll symbol read by the second reading means to the rolling control device.