Unlock instant, AI-driven research and patent intelligence for your innovation.

Rolling control device, rolling control method, and rolling control program

A control device and technology for controlling rolling, applied in the direction of rolling mill control device, rolling force/roll gap control, metal rolling, etc., can solve the problems such as the change of the diameter of the reel, and achieve the effect of suppressing the change of the coil diameter

Active Publication Date: 2013-10-30
HITACHI LTD
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, even in the case of a roll radius of 0.5m, it causes a 0.5% change in the roll diameter

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rolling control device, rolling control method, and rolling control program
  • Rolling control device, rolling control method, and rolling control program
  • Rolling control device, rolling control method, and rolling control program

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] In this embodiment, the case where the rolled material which welded the preceding material and the following material are rolled in the single-stand rolling mill is demonstrated as an example. figure 1 It is a figure which shows the whole structure of the single-stand rolling mill of this embodiment. like figure 1 As shown, the single-stand rolling mill of this embodiment is provided with an entry side TR (Tension Reel: tension reel) 2 on the entry side with respect to the rolling direction of the rolling stand 1, and an exit side TR3 is provided on the exit side. , the rolling is performed by rolling the rolled material uncoiled from the entry-side TR2 in the rolling stand 1, and then coiling it in the exit-side TR3.

[0051] Connected to the rolling stand 1 are a gap control device 7 for controlling the thickness of a workpiece to be rolled by changing the gap between the rolls and a rolling speed control device 4 for controlling the speed of the rolling stand 1 . ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

[Problem] To control fluctuations in coil diameter caused by local changes in sheet thickness as a result of a necessity for opening the roll gap without rolling in part of the material being rolled. [Solution] This rolling control method rolls the material being rolled, takes the same up onto a tension reel, and controls the rolling mill such that rolling is avoided by releasing the rolls for a welding point (30) where rolling should be avoided. The rolling control method is characterized by the winding contour during uptake of the welding point (30) onto the tension reel being acquired and the roll release timing for releasing the rolls being acquired such that the length in the feed direction for the part for which rolling is to be avoided is a length corresponding to the winding contour. The rolling control method is further characterized by the timing when the welding point (30) arrives at the rolls being recognized and control being carried out such that the rolls are released based on the roll release timing and the arrival timing.

Description

technical field [0001] The present invention relates to a rolling control device, a rolling control method, and a rolling control program, and particularly relates to suppression of tension fluctuations when the thickness of a workpiece to be rolled changes locally. Background technique [0002] In the rolling mill, the tension of the workpiece to be rolled and the rolling load are controlled using the distance between the upper and lower work rolls, that is, the distance between the rolls, and the roll speeds of the equipment before and after the rolling mill, thereby performing the rolling operation. In the rolling operation, operate according to the pre-set control operation amount of the rolling mill, that is, the distance between the rolls and the speed of the roll, and implement the rolling process for the rolled piece that will be the control state of the rolling mill. Feedback control of the plate thickness, tension and rolling load to maintain the set value. [000...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B21C47/02B21B1/32B21B37/46B21C47/00
CPCB21B37/00B21C47/003B21B1/32B21B37/58
Inventor 服部哲
Owner HITACHI LTD