JPS5952967B2 - Rolling technology data diagram device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for collecting technical data in the rolling direction when technical data measuring devices related to rolling are installed in a plurality or a single rolling mill main body and on the front and rear sides of the rolling mill. The present invention relates to a device for illustrating rolling technical data.

In rolling operations, the rolling load, rolling current, and rolling speed in the rolling mill itself, as well as the temperature, thickness, thickness, and other dimensions of the rolled material on the front and rear sides of the rolling mill, are measured and illustrated or displayed. things are being done.

However, in the past, the analog signal from the measuring device for collecting the technical data was immediately input into a pen recorder to graphically illustrate the waveform of the technical data. FIGS. 1 and 2 show the above-mentioned conventional example of illustrating technical data using a pen recorder. 1st
In the figure, a rolling pressure 2 is sampled in a rolling mill 1, a temperature 3 is measured on the input side of the rolling mill 1, and a thickness 4 is measured on the output side of the rolling mill 1, and these are input to a pen recorder 5. Further, in FIG. 2, the recording waveform 6 has a rolling pressure of 2, the recording waveform 7 has a temperature of 3, and the recording waveform 8 has a thickness of 4. A dotted line 9 in FIG. 2 indicates a relatively same position before and after rolling the material 10 to be rolled. However, in such a conventional diagramming method, as can be seen from Figure 2 above, the positional correspondence in the rolling direction on the rolled material is not accurate among the recorded waveforms of multiple technical data due to the following reasons. It has the following drawback.
(1) The location for collecting technical data is different.

(2) The length of the rolled material differs before and after rolling.

(3) There is acceleration and deceleration during rolling, and the speed at which the rolling material passes through the point where technical data is collected is different. The present invention has been made based on the above-mentioned reasons, and provides a rolling technology data illustrating device that is free from the above-mentioned drawbacks and can accurately display the relative positions of technology flaws sampled in the rolling direction of a rolled material. The purpose is to provide.

The present invention will be described below with reference to an embodiment shown in FIGS. 3 and 4.

The illustrated technology is based on the assumption that, as in the conventional example, the rolling pressure 2 is sampled at the rolling mill 1, the temperature 3 is measured at the input side of the rolling mill 1, and the thickness 4 is measured at the exit side of the rolling mill 1. Furthermore, every time the material to be rolled 10 advances a certain distance, a pulse 1 is generated.
A pulse transmitter 11 that generates 4 is attached to the rolling mill roll drive shaft, and roller tables 12 on the front and rear surfaces of the rolling mill.
, 13 are assumed to be synchronized with the rolling mill 1. Pulses 14 from the pulse generator 11 are input to an electronic computer 18 that includes a process input/output section 15 , an arithmetic control section 16 , and a storage section 17 . Further, rolling pressure 2, temperature 3, and thickness 4 are also input to the fixing input/output section 15. The process input/output unit 15 outputs a recording waveform 6a of the rolling pressure 2 to the pen recorder 5;
Analog signals for recording a recording waveform 7a for temperature 3 and a recording waveform 8a for thickness 4 are output. Further, a plate thickness ratio setting device 19 is provided for inputting the plate thickness ratio before and after the rolling mill into the electronic computer 18. Next, the operation of the apparatus of the present invention will be explained.

Every time the pulse 14 from the pulse generator 11 interrupts the electronic computer 18, the electronic computer 18 scans the rolling pressure 2, temperature 3, and thickness 4, and stores them in the storage section 17. Pulse oscillator] The number of pulses 14 per rotation is determined so that the pulses 14 of 1 are transmitted at each technical data collection interval.
For this reason, technical data is collected at regular intervals even if the rolling speed changes. Arrival and passage of rolled material
The computer program 8 is configured so that it is determined that the material to be rolled is present when the value of the technical data exceeds a predetermined standard value.When the material to be rolled passes,
The storage unit 17 stores seven pieces of collected technical data. Next, a method for causing the pen recorder 5 to draw a recorded waveform from these collected technical data will be explained.

In this embodiment, it is assumed that the scale of the other technical data recording waveforms in the rolling direction is adjusted to the recording waveform 8a having a thickness of 4. That is, assuming that there is no advance of the rolled material 10 in the rolling mill 1, the rolling pressure 2 will be the same as the rolling direction scale of the recorded waveform after rolling. Regarding temperature 3, since the material to be rolled 10 is in a state before rolling, the length in the rolling direction per sampling data interval. The degree is corrected by dividing by the plate thickness ratio setter 19. The pen recorder 5 feeds the recording paper at a constant speed. The arithmetic control unit 16 sets the time interval for the rolling pressure 2 and the thickness 4 in the internal software timer 20, and the time interval for the temperature 3 in the internal software timer 21. Each time one of these software timers expires,
The arithmetic control section 16 reads out the next collected technical data from the storage section 17 and outputs recorded waveforms 6a, 7a, 8a as analog signals to the process input/output section]5. Microscopically, this recorded waveform has a step-like shape, as seen in FIG. The length of one section of stairs for the recording waveform 7a is the value obtained by dividing the length of one section of stairs of the recording waveforms 6a and 8a by the plate thickness ratio setter 19. This is as explained in the method for determining the time interval set in the software timers 20 and 21 above, and is explained in 11 in FIG.
The ratio between and 12 represents the plate thickness ratio before and after rolling. Next, other embodiments of the present invention will be described.

In the above embodiment, the waveform is illustrated on the pen recorder 5, but it can also be displayed on a CRT display device.
In this case, the software timers 20 and 21, which were necessary for the pen recorder 5 to feed the recording paper at a constant speed, are no longer necessary, but the rolling direction scale can be adjusted for each type of collected data. In order to align the plate thickness ratio setting device 19,
It is necessary to correct using the value of The display method of the CRT display device is an existing technology, and its explanation will be omitted.
Also, instead of using the plate thickness ratio setting device 19, if the plate thickness H of the material to be rolled at the entrance side of the rolling mill, the reduction amount S of the rolling mill roll, the rolling pressure F, and the mill spring constant M are known, the plate thickness ratio can be calculated using the following formula. This setting device is no longer needed. Furthermore, in the embodiment, when the value of the collected data exceeds a predetermined value, it is determined that the rolled material has reached the measurement point, and the collected data is stored. However, in addition to this, it is also easy to create a device that has the logic of installing a steel material detector at the location of the measuring instrument, collecting data only when steel material is present, and storing it. As explained above, according to the present invention, technical data in the rolling length direction collected at different locations during the rolling process is illustrated or displayed so that the positions facing the rolling length direction are on the same coordinate axis. We can provide an effective device that can do this.

[Brief explanation of drawings]

Figure 1 is a configuration diagram of conventional rolling technology data collection, Figure 2 is a conventional rolling technology data recording diagram, Figure 3 is a block diagram showing an example of rolling technology data collection of the present invention, and Figure 4 is a block diagram of a conventional rolling technology data collection system. FIG. 5 is a microscopically enlarged view of the rolling technology data record of the present invention. 1...Rolling machine, 2...Rolling pressure signal,
3...Temperature signal, 4...Thickness signal, 5
...Pen writing recorder, 6,6a...Rolling pressure recording waveform, 7,7a...Temperature recording waveform,
8, 8a...Thickness recording waveform, ]0...
Rolled material, 11...Pulse transmitter, 12...
... Input roller table, 13 ... Output roller table, 14 ... Pulse signal, 15 ...
. . . Process input/output section, 16 . . . Calculation control section, 17 . . . Storage section, 19 . . . Thickness ratio setting device.

Claims (1)

[Claims] 1. In the rolling of steel materials, a plurality of measuring instruments are arranged at different locations in the rolling length direction and measure discrete technical data of the rolled material, a storage section that temporarily stores the discrete technical data, and a storage section that stores the discrete technical data. comprising a calculation unit that reads the discrete technical data and calculates a position on the coordinates so that positions facing each other in the rolling length direction are on the same coordinate axis, and a recording unit that graphically displays the output of the calculation unit, A rolling technology data illustrating device characterized by displaying a plurality of data in the rolling direction of a rolled material at different measurement times with the time axes aligned.