CN110064669B - Quick zero adjustment method for non-pressure detection instrument - Google Patents
Quick zero adjustment method for non-pressure detection instrument Download PDFInfo
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- CN110064669B CN110064669B CN201910379725.9A CN201910379725A CN110064669B CN 110064669 B CN110064669 B CN 110064669B CN 201910379725 A CN201910379725 A CN 201910379725A CN 110064669 B CN110064669 B CN 110064669B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
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Abstract
The invention provides a quick zero adjustment method for a non-pressure detection instrument, and belongs to the technical field of metallurgy automatic control. Firstly clicking an 'R1 zero-tuning' button of a human-computer interaction interface to enter a zero-tuning state, and then manually pressing a copper bar; clicking the person after the copper bar is pressed in placeA 'roll gap zero clearing' button of a machine interaction interface is used, then the roll gap is lifted, the thickness of the copper bars on two sides after being pressed is measured actually, the measured thickness is input into an HMI (human machine interface), a 'roll gap calibration' button is clicked, and then the deviation M of the roll gaps on two sides is observed0Adjust the real-time offset to-M0If | M0|<＝MOKThen zeroing is complete if M0|>MOKIn order to prevent the rolled thickness from deviating greatly from the set thickness, the copper bar needs to be pressed once again, and the above process is repeated once. According to the method, the copper rod is pressed once or twice manually, complicated calculation by operators is not needed, the method is quick and not easy to make mistakes, the dependence of the thickness control quality of the intermediate billet on the roll gap calibration experience of the operators is reduced, and the time for roll gap calibration is saved.
Description
Technical Field
The invention relates to the technical field of metallurgy automatic control, in particular to a quick zero-adjusting method of a non-pressure detection instrument.
Background
In some hot rolling plants, because the equipment is old, the screwdown gear cannot be mechanically provided with an instrument for detecting the rolling pressure, and the roll gap leveling can only be carried out by manually pressing a copper bar. The conventional method comprises the steps of firstly pressing the copper rod, recording the roll gap of the operation side and the transmission side at the moment after the copper rod is pressed in place, then lifting the pressing device, actually measuring the thickness of the copper rod at the operation side and the transmission side after the copper rod is pressed and recording, then adjusting the deviation according to experience by an operator, then pressing the copper rod again, repeating the steps for multiple times until the actually measured deviation of the two sides of the operation side and the transmission side is within an allowable range, and calibrating the current actual roll gap by the operator according to the roll gap values of the operation side and the transmission side, the current roll gap value and the actually measured value of the copper rod after the copper rod is pressed in place and the experience value of bounce. The roll gap calibration process is complicated and easy to make mistakes, and the calibration process has great relation with the experience of operators.
Disclosure of Invention
The invention aims to provide a quick zero-adjusting method of a non-pressure detection instrument.
The method comprises the following steps:
(1) clicking an 'R1 zero-adjustment' button of a human-computer interaction interface to enter a zero-adjustment state, and enabling a 'roll gap zero-clearing' button to be available;
(2) manually pressing the copper rod;
(3) after the copper rod is pressed in place, clicking a 'roll gap zero clearing' button of a human-computer interaction interface, marking the current roll gap as 0 roll gap, and simultaneously enabling the 'roll gap marking' button to become available and the 'roll gap zero clearing' button to become unavailable;
(4) the roll gaps of the operation side and the transmission side of the linkage lifting and pressing device are respectively HW1And HD1；
(5) Actually measuring the thickness H of the copper bars at two sides after being pressedW2And HD2；
(6) Inputting the actual measurement thickness H of the copper bar on a human-computer interaction interfaceW2And HD2；
(7) Clicking a 'roll gap calibration' button;
(8) automatically calculating the actual value H of the roll gaps at two sides containing bounceWAnd HDAnd the deviation H of the roll gapW-DMarking H at that timeW-DIs M0；
(9) A single-acting operating side or drive side screwdown device for adjusting the roll gap deviation HW-DIs regulated to-M0；
(10) If | M0|<＝MOKThen the roll gap calibration is finished;
(11) if | M0|>MOKIn order to prevent the rolled thickness from having large deviation with the set value, the copper bar needs to be pressed again, and the process is repeated once;
(12) clicking the 'R1 zero adjustment' button to exit the zero adjustment state, and finishing the roll gap calibration.
The 'R1 zero adjustment' button, the 'roll gap zero clearing' button and the 'roll gap calibration' button have interlocking property, and misoperation is prevented.
The method for automatically calculating the actual value of the roll gaps at two sides containing bounce in the step (8) comprises the following steps:
HW＝HW1+HW2+n，
HD＝HD1+HD2+n,
wherein n is a compensation quantity related to the bouncing of the rolling mill. And n takes a value of 2-3.
M in step (11)OKThe value is 0.3-0.4.
Deviation H of roll gap in step (8)W-D＝Hw-HD。
The technical scheme of the invention has the following beneficial effects:
in the scheme, an operator only needs to manually press the copper rod once or twice, records and inputs the measured value of the thickness of the copper rod, the actual roll gap between the current operation side and the transmission side can be automatically calculated, if the roll gap deviation between the two sides is within an allowable range, the copper rod only needs to be pressed once, if the deviation is large, the roll gap calibration can be completed by pressing the copper rod once again, tedious calculation is not needed, the dependence of the thickness control quality of the intermediate billet on the roll gap calibration experience of the operator is reduced, and the roll gap calibration time is saved.
Drawings
FIG. 1 is a schematic diagram of the operation of the human-computer interaction interface of the rapid zero-tuning method of the non-pressure detection instrument.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a quick zero-adjusting method of a non-pressure detection instrument.
The method comprises the steps of clicking an R1 zero adjustment button (shown in figure 1), entering a zero adjustment mode, manually pressing a copper bar, clicking a roll gap zero clearing button on a man-machine interaction interface after the copper bar is pressed in place, lifting a roll gap, actually measuring the thickness of the pressed copper bar on two sides, inputting the pressed copper bar into the man-machine interaction interface, clicking a roll gap calibration button, observing the deviation of the roll gaps on the two sides, adjusting the deviation to be reverse, completing roll gap calibration if the deviation values on the two sides are within an allowable range, and pressing the copper bar once if the deviation values are greater than the allowable range.
The method comprises the following steps in the concrete implementation process:
(1) clicking an 'R1 zero-tuning' button of a human-computer interaction interface shown in the figure 1 to enter a zero-tuning state, so that a 'roll gap zero-clearing' button is available;
(2) manually pressing the copper rod;
(3) after the copper rod is pressed in place, clicking a 'roll gap zero clearing' button of a human-computer interaction interface, marking the current roll gap as 0 roll gap, and simultaneously enabling the 'roll gap marking' button to become available and the 'roll gap zero clearing' button to become unavailable;
(4) the roll gaps of the operation side and the transmission side of the linkage lifting and pressing device are respectively HW1And HD1；
(5) Actually measuring the thickness H of the copper bars at two sides after being pressedW2And HD2；
(6) Inputting the actual measurement thickness H of the copper bar on a human-computer interaction interfaceW2And HD2；
(7) Clicking a 'roll gap calibration' button;
(8) automatically calculating the actual value H of the roll gap between the operation side and the transmission side containing bounce at presentWAnd HDAnd the deviation H of the roll gapW-DMarking H at that timeW-DIs M0；
(9) A single-acting operating side or drive side screwdown device for adjusting the roll gap deviation HW-DIs regulated to-M0；
(10) If | M0|<＝MOKThen the roll gap calibration is finished;
(11) if | M0|>MOKIn order to prevent the rolled thickness from having large deviation with the set value, the copper bar needs to be pressed again, and the process is repeated once;
(12) clicking the 'R1 zero adjustment' button to exit the zero adjustment state, and finishing the roll gap calibration.
The method is successfully applied to the zero adjustment process control of a roughing mill of a certain hot rolling mill and is favored by users.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A quick zero-adjusting method of a non-pressure detection instrument is characterized in that: the method comprises the following steps:
(1) clicking an R1 zero-adjustment button of a human-computer interaction interface to enter a zero-adjustment state, so that a roll gap zero-clearing button is available;
(2) manually pressing the copper rod;
(3) after the copper rod is pressed in place, clicking a roll gap zero clearing button of a human-computer interaction interface, marking the current roll gap as 0 roll gap, and simultaneously enabling the roll gap marking button to become available and the roll gap zero clearing button to become unavailable;
(4) the roll gaps of the operation side and the transmission side of the linkage lifting and pressing device are respectively HW1And HD1；
(5) Actually measuring the thickness H of the copper bars at two sides after being pressedW2And HD2；
(6) Inputting the actual measurement thickness H of the copper bar on a human-computer interaction interfaceW2And HD2；
(7) Clicking a roll gap calibration button;
(8) automatically calculating the actual value H of the roll gap between the operation side and the transmission side containing bounce at presentWAnd HDAnd the deviation H of the roll gap between the current operation side and the transmission side containing bounceW-DMarking H at that timeW-DIs M0；
(9) A single-acting operating side or drive side screwdown device for adjusting the roll gap deviation HW-DIs regulated to-M0；
(10) If | M0|<＝MOKThen the roll gap calibration is finished;
(11) if | M0|>MOKIn order to prevent the rolled thickness from having large deviation with the set value, the copper bar needs to be pressed again, and the process is repeated once;
(12) and clicking an R1 zero-adjustment button to exit the zero-adjustment state, and finishing the roll gap calibration.
2. The fast zero-tuning method of a non-pressure instrumentation according to claim 1, wherein: the R1 zero adjustment button, the roll gap zero clearing button and the roll gap calibration button have interlocking performance, and misoperation is prevented.
3. The fast zero-tuning method of a non-pressure instrumentation according to claim 1, wherein: the method for automatically calculating the actual values of the roll gaps of the current bounce-containing operation side and transmission side in the step (8) comprises the following steps:
HW＝HW1+HW2+n，
HD＝HD1+HD2+n,
wherein n is a compensation quantity related to the bouncing of the rolling mill.
4. The fast zero-tuning method of a non-pressure instrumentation according to claim 3, wherein: and n takes a value of 2-3.
5. The fast zero-tuning method of a non-pressure instrumentation according to claim 1, wherein: m in the step (11)OKThe value is 0.3-0.4.
6. The fast zero-tuning method of a non-pressure instrumentation according to claim 1, wherein: the deviation H of the roll gap in the step (8)W-D＝Hw-HD。
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3302641B2 (en) * | 1998-03-27 | 2002-07-15 | 川崎製鉄株式会社 | Leveling adjustment method of rolling mill and apparatus for adjusting the same |
| CN102039316B (en) * | 2009-10-10 | 2012-07-11 | 北京理工大学 | Zero-point calibration method for hot continuous rolling machine frame |
| CN101972779B (en) * | 2010-11-05 | 2012-06-06 | 南京钢铁股份有限公司 | Zero position calibrating and roll gap positioning method for four-roller reversible mill |
| CN102553944B (en) * | 2012-02-20 | 2014-06-04 | 首钢京唐钢铁联合有限责任公司 | Calibration method for roller gaps of rolling machine |
| CN103433291B (en) * | 2013-07-10 | 2015-05-06 | 鞍钢股份有限公司 | Measurement and regulation method for rough rolling working roll gap deviation |
| CN108637022B (en) * | 2018-05-21 | 2020-05-19 | 山东钢铁集团日照有限公司 | Method for accurately calibrating rough rolling horizontal roll gap |
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