CN107398477B - The pulse equivalency measurement method and device of Double Dimension Flying Shears - Google Patents
The pulse equivalency measurement method and device of Double Dimension Flying Shears Download PDFInfo
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- CN107398477B CN107398477B CN201710606117.8A CN201710606117A CN107398477B CN 107398477 B CN107398477 B CN 107398477B CN 201710606117 A CN201710606117 A CN 201710606117A CN 107398477 B CN107398477 B CN 107398477B
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- 238000000691 measurement method Methods 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 87
- 229910052751 metal Inorganic materials 0.000 claims abstract description 87
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000010008 shearing Methods 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 210000001367 artery Anatomy 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 2
- 239000010931 gold Substances 0.000 claims 2
- 229910052737 gold Inorganic materials 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000002789 length control Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 14
- 238000005520 cutting process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012730 cephalometry Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- 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
Abstract
The present invention provides the pulse equivalency measurement method and device of a kind of Double Dimension Flying Shears, method includes: the upstream and downstream that the first metal detector and the second metal detector are respectively arranged to Double Dimension Flying Shears shearing point；Acquire the first umber of pulse and the second umber of pulse, wherein, first umber of pulse is umber of pulse of the workpiece front end from the finisher encoder of the first metal detector to the second metal detector, and the second umber of pulse is the umber of pulse of finisher encoder of the workpiece front end from shearing point to the second metal detector；Pulse equivalency is determined according to physical distance, the first umber of pulse and the second umber of pulse between the physical distance of the first hot metal detector and the second metal thermal detector, the second metal thermal detector and shearing point.The present invention is to realize that accurate sheared length control creates precondition, and double length shearing precision can be improved in this programme, reduces operation difficulty, largely improves the lumber recovery of production line of bar, has apparent economic benefit.
Description
Technical field
The present invention relates to control technologies, are concretely the pulse equivalency measurement method and device of a kind of Double Dimension Flying Shears.
Background technique
Double Dimension Flying Shears are the key equipments of production line of bar, and effect is that the rolled piece that shuts out finisher is long by product sizing
The length of the multiple of degree is sheared, and therefore, the accurate measurement of length of rolled piece is guarantee and the shadow of Double Dimension Flying Shears shear precision
An important factor for ringing lumber recovery.It is big that length of rolled piece measurement inaccuracy will lead to flying shear sheared length error, and shear precision reduces, at
Material rate reduces, can be every year to the economic loss for bringing millions of or even up to ten million members of production line of bar.
The forward length increment of bar rolled piece and the angle step of finisher roll rotation have certain proportionate relationship,
Finisher roll is driven by motor by reduction gearbox, and motor shaft end is equipped with encoder and is used to issue measurement pulse, therefore
The forward length of rolled piece has corresponding proportionate relationship with the umber of pulse of measurement encoder, proportionate relationship pulse equivalency LPP table
Show.Length of rolled piece generallys use finisher encoder pulse signal-count value and pulse equivalency to calculate.LPP pulse equivalency is
The key parameter of length computation.Length of rolled piece is determined by formula (1):
L=LPP*N (1)
Wherein, L is length of rolled piece, and LPP is pulse equivalency, and N is finisher encoder pulse count value.
In the pulse equivalency measurement method of the prior art, since the setting value of work roller diameter can not adapt to milling train reality automatically
The variation for the roller diameter that works, to cause pulse equivalency LPP used by system, there are errors, and length of rolled piece measurement is caused to miss
Difference, in addition, actual pulse equivalency LPP is uniform with supplied materials rolled piece temperature in addition to having outside the Pass with operation roll of mill diameter, while also
Property and the heap drawing of the operation of rolling have a relationship, the measurement method of the prior art whole from the beginning to the end to whole rolled piece can not carry out pulse
Equivalent measurement, the same accuracy for influencing length of rolled piece measurement.
Summary of the invention
For the accurate measurement for solving the problems, such as double length shearing length of rolled piece, the embodiment of the invention provides a kind of Double Dimension Flying Shears
Pulse equivalency measurement method, the method include:
First metal detector and the second metal detector are respectively arranged to the upstream and downstream of Double Dimension Flying Shears shearing point；
Acquire the first umber of pulse and the second umber of pulse, wherein first umber of pulse is that workpiece front end is examined from the first metal
Survey device to the second metal detector finisher encoder umber of pulse, the second umber of pulse is workpiece front end from shearing point to the
The umber of pulse of the finisher encoder of two metal detectors；
According to the physical distance of the first hot metal detector and the second metal thermal detector, the second metal thermal detector and cut
Physical distance, the first umber of pulse and the second umber of pulse between point of contact determine pulse equivalency.
In the embodiment of the present invention, it is described according to the physics of the first hot metal detector and the second metal thermal detector away from
Pulse equivalency is determined from physical distance, the first umber of pulse and the second umber of pulse between, the second metal thermal detector and shearing point
Include:
It is determined according to the physical distance of first hot metal detector and the second metal thermal detector, the first umber of pulse first
Knife pulse equivalency.
In the embodiment of the present invention, according to the physical distance between the second metal thermal detector and shearing point, the second pulse
Number determines the later pulse equivalency of first knife.
Meanwhile the present invention also provides a kind of pulse equivalency measuring devices of Double Dimension Flying Shears, comprising:
Data acquisition module, for acquiring the first umber of pulse and the second umber of pulse；Wherein, first umber of pulse is rolled piece
From the umber of pulse of the finisher encoder of the first metal detector to the second metal detector, the second umber of pulse is rolled piece on head
The umber of pulse of finisher encoder of the head from shearing point to the second metal detector, first metal detector and second
Metal detector is respectively arranged at the upstream and downstream of Double Dimension Flying Shears shearing point；
Equivalent determining module, for according to the physical distance of the first hot metal detector and the second metal thermal detector,
Physical distance, the first umber of pulse and the second umber of pulse between two metal thermal detectors and shearing point determine pulse equivalency.
In the embodiment of the present invention, the equivalent determining module includes:
First knife equivalent determination unit, for the physics according to first hot metal detector and the second metal thermal detector
Distance, the first umber of pulse determine first knife pulse equivalency.
Equivalent pulse determination unit after first knife, for according to the physics between the second metal thermal detector and shearing point
Distance, the second umber of pulse determine the later pulse equivalency of first knife.
The present invention solves the problems, such as the accurate measurement of double length shearing length of rolled piece, to realize accurate sheared length control wound
Precondition is made.Double length shearing precision can be improved using this programme, reduce operation difficulty, largely improve bar production
The lumber recovery of line has apparent economic benefit.
For above and other objects, features and advantages of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly,
And cooperate institute's accompanying drawings, it is described in detail below.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow chart of the pulse equivalency measurement method of Double Dimension Flying Shears disclosed by the invention；
Fig. 2 is the block diagram of the pulse equivalency measuring device of Double Dimension Flying Shears disclosed by the invention；
Fig. 3 is existing production line of bar process schematic representation；
Fig. 4 is the schematic diagram of production line of bar of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of pulse equivalency measurement methods of Double Dimension Flying Shears, as shown in Figure 1, this method comprises:
First metal detector and the second metal detector are respectively arranged at the upper of Double Dimension Flying Shears shearing point by step S101
Trip and downstream；
Step S102 acquires the first umber of pulse and the second umber of pulse, wherein first umber of pulse is workpiece front end from the
The umber of pulse of the finisher encoder of one metal detector to the second metal detector, the second umber of pulse are workpiece front end from cutting
Point of contact to the second metal detector finisher encoder umber of pulse；
Step S103, according to the physical distance of the first hot metal detector and the second metal thermal detector, the second metal fever
Physical distance, the first umber of pulse and the second umber of pulse between detector and shearing point determine pulse equivalency.
In the embodiment of the present invention, in step S103, according to the object of the first hot metal detector and the second metal thermal detector
Physical distance, the first umber of pulse and the second umber of pulse between reason distance, the second metal thermal detector and shearing point determine pulse
Equivalent includes:
It is determined according to the physical distance of first hot metal detector and the second metal thermal detector, the first umber of pulse first
Knife pulse equivalency.
Determine that first knife is later according to physical distance, the second umber of pulse between the second metal thermal detector and shearing point
Pulse equivalency.
Meanwhile the present invention also provides a kind of pulse equivalency measuring devices of Double Dimension Flying Shears, as shown in Figure 2, comprising:
Data acquisition module 201, for acquiring the first umber of pulse and the second umber of pulse；Wherein, first umber of pulse is
Workpiece front end is from the umber of pulse of the finisher encoder of the first metal detector to the second metal detector, the second umber of pulse
The umber of pulse of finisher encoder of the workpiece front end from shearing point to the second metal detector, first metal detector and
Second metal detector is respectively arranged at the upstream and downstream of Double Dimension Flying Shears shearing point；
Equivalent determining module 202, for according to the physical distance of the first hot metal detector and the second metal thermal detector,
Physical distance, the first umber of pulse and the second umber of pulse between second metal thermal detector and shearing point determine pulse equivalency.
In the embodiment of the present invention, the equivalent determining module 202 includes:
First knife equivalent determination unit, for the physics according to first hot metal detector and the second metal thermal detector
Distance, the first umber of pulse determine first knife pulse equivalency.
Equivalent pulse determination unit after first knife, for according to the physics between the second metal thermal detector and shearing point
Distance, the second umber of pulse determine the later pulse equivalency of first knife.
As shown in figure 3, being existing production line of bar process schematic representation.
A kind of existing pulse equivalency determines method -- work roller diameter calculating method: this method is the work by finisher
Roller diameter calculates pulse equivalency LPP, determines pulse equivalency by formula (2).
In formula, Wd is finisher work roller diameter；
I: finisher reduction ratio；
Ppr: finisher motor encoder is every to turn umber of pulse.
In this method, Double Dimension Flying Shears are in every knife shear history using fixed pulse equivalency.From formula (2), to a certain
Ppr and i is constant for finisher, and the roller diameter that only works Wd is variable.It need to be modified on operation screen after mill roll
Wd numerical value.But in actual use, there are the following problems: 1) the work roller diameter of bar is not easy accurately to estimate, operative employee's input
Working roll diameter often has large error；2) during bar production, working roll can be gradually worn out, and cause actual working roll
Diameter changes.That is the defect of this method is that the numerical value of work roller diameter and variation are not easy to grasp, and the setting value for the roller diameter that works can not
The automatic variation for adapting to milling train real work roller diameter causes to roll to cause pulse equivalency LPP used by system there are error
There is error in part linear measure longimetry.
Another pulse equivalency of the prior art determines method cephalometry, according to workpiece front end from hot metal detector
Count value between HMD1 to hot metal detector HMD2 calculates pulse equivalency LPP, the pulse equivalency as this branch rolled piece.
L1_2 is the physical distance of hot metal detector HMD1 to the HMD_2 in Fig. 3 in formula.
Cnts1_2 be workpiece front end from hot metal detector HMD1 to HMD2 between finisher motor encoder arteries and veins
Rush count value.
This method due to measuring primary calculation method using every steel, can adaptive operation roll of mill diameter variation.
But found during practical bar production, actual pulse equivalency LPP in addition to having outside the Pass with operation roll of mill diameter, while also with
The heap drawing of the uniformity and the operation of rolling of supplied materials rolled piece temperature has relationship, so the pulse of the head section of a rolled piece, middle section, endpiece
Equivalent LPP can be variant.This method can only measure every rolled piece the pulse equivalency LPP of head section, can not be to whole rolled piece from the beginning
Pulse equivalency measurement, the same accuracy for influencing length of rolled piece measurement are carried out to tail whole process.
The primary shearing of the every generation of Double Dimension Flying Shears can generate a cutting edge closing point signal (shearing point).The present invention is on flying shear
A hot metal detector (HMD1, HMD2) is respectively arranged in trip downstream.First knife shearing pulse equivalency using HMD1 to HMD2 it
Between distance (HMD1_2) and HMD2 and HMD1 between the step-by-step counting poor (Cnts1_2) of finisher encoder calculate.
As shown in figure 4, being the schematic diagram of production line of bar of the invention.
First knife pulse equivalency is
The later pulse equivalency of first knife is according to shearing point to the distance (HMD2_CPT) for cutting rear hot metal detector (HMD2)
And the step-by-step counting poor (CntsHMDx) of the finisher encoder between HMD2 and shearing point calculates.
Pulse equivalency after first knife:
The instant pulse equivalency for thus having obtained rolled piece before every knife is sheared, realizes the instant accurate survey of length of rolled piece
Amount.In conjunction with specific number to pulse equivalency is calculated, it is illustrated below:
HMD1_2=60000mm；
HMD2_CPT=40000mm；
Cnts1_2=124800；
CntsHMDx=84900；
First knife pulse equivalency:
Second knife pulse equivalency
The present invention is using flying shear shearing point (cutting edge closing point) signal and cuts rear hot metal detector signal (HMD2) immediately
Measure the pulse equivalency of rolled piece.Using the preceding hot metal detector signal (HMD1) of flying shear and cut rear hot metal detector signal
(HMD2) measurement of head rolled piece (first knife) pulse equivalency is realized.The pulse equivalency that shearing is all made of newest actual measurement every time is grown
Degree calculates.
The technology of the present invention can exclude as rolling line technology controlling and process it is undesirable caused by a rolled piece different sections pulse
Equivalent changes the influence measured length of rolled piece, solves the problems, such as the accurate measurement of double length shearing length of rolled piece, accurate to realize
Sheared length control create precondition.Double length shearing precision can be improved using this programme, reduce operation difficulty, it is larger
Degree improves the lumber recovery of production line of bar, has apparent economic benefit.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (2)
1. a kind of pulse equivalency measurement method of Double Dimension Flying Shears, which is characterized in that the method includes:
First metal detector and the second metal detector are respectively arranged to the upstream and downstream of Double Dimension Flying Shears shearing point；
Acquire the first umber of pulse and the second umber of pulse, wherein first umber of pulse is workpiece front end from the first metal detector
To the umber of pulse of the finisher encoder of the second metal detector, the second umber of pulse is workpiece front end from shearing point to the second gold medal
Belong to the umber of pulse of the finisher encoder of detector；
According to the physical distance of the first hot metal detector and the second metal thermal detector, the second metal thermal detector and shearing point
Between physical distance, the first umber of pulse and the second umber of pulse determine pulse equivalency；Wherein,
First knife arteries and veins is determined according to the physical distance of first hot metal detector and the second metal thermal detector, the first umber of pulse
Rush equivalent；
The later pulse of first knife is determined according to physical distance, the second umber of pulse between the second metal thermal detector and shearing point
Equivalent.
2. a kind of pulse equivalency measuring device of Double Dimension Flying Shears, which is characterized in that the device includes:
Data acquisition module, for acquiring the first umber of pulse and the second umber of pulse；Wherein, first umber of pulse is workpiece front end
From the umber of pulse of the finisher encoder of the first metal detector to the second metal detector, the second umber of pulse is workpiece front end
From shearing point to the umber of pulse of the finisher encoder of the second metal detector, first metal detector and the second metal
Detector is respectively arranged at the upstream and downstream of Double Dimension Flying Shears shearing point；
Equivalent determining module, for according to the physical distance of the first hot metal detector and the second metal thermal detector, the second gold medal
Physical distance, the first umber of pulse and the second umber of pulse belonged between thermal detector and shearing point determines pulse equivalency；
The equivalent determining module includes:
First knife equivalent determination unit, for according to the physics of first hot metal detector and the second metal thermal detector away from
First knife pulse equivalency is determined from, the first umber of pulse；
Equivalent pulse determination unit after first knife, for according to the physics between the second metal thermal detector and shearing point away from
The later pulse equivalency of first knife is determined from, the second umber of pulse.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710606117.8A CN107398477B (en) | 2017-07-24 | 2017-07-24 | The pulse equivalency measurement method and device of Double Dimension Flying Shears |
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| CN201710606117.8A CN107398477B (en) | 2017-07-24 | 2017-07-24 | The pulse equivalency measurement method and device of Double Dimension Flying Shears |
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| CN107398477B true CN107398477B (en) | 2019-06-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666236B (en) * | 2019-08-30 | 2021-09-14 | 陕钢集团汉中钢铁有限责任公司 | Multi-scale flying shear signal processing method |
| CN111804736B (en) * | 2020-05-27 | 2022-04-12 | 广东韶钢松山股份有限公司 | High-speed flying shear control method |
| CN114453664A (en) * | 2022-02-09 | 2022-05-10 | 山东钢铁集团永锋临港有限公司 | Method for improving shearing precision of multi-length flying shear of bar |
| CN114871495A (en) * | 2022-06-06 | 2022-08-09 | 山东莱钢永锋钢铁有限公司 | Method for improving shearing precision of head-cutting flying shear |
| CN114951812B (en) * | 2022-07-07 | 2024-03-12 | 山东莱钢永锋钢铁有限公司 | Bar flying shear speed acquisition switching system |
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