CN105404742B - A kind of galvanizing product volume Shearing Optimization method based on strip weight - Google Patents
A kind of galvanizing product volume Shearing Optimization method based on strip weight Download PDFInfo
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Abstract
A kind of galvanizing product volume Shearing Optimization method based on strip weight belongs to galvanizing production control technology field.Increase optimal setting calculating process in strip shearing setting module, calculating is optimized to shearing setting value.It the advantage is that, when carrying out shearing setting, by the judgement to strip steel weld joint situation in production line, and consider that coating weight calculates the strip weight obtained for Shearing Optimization setup algorithm.Then target is sheared according to product volume and carries out product volume Shearing Optimization setup algorithm, determined shearing setup parameter, the amendment of clipped position is further carried out with reference to the distance between clipped position and position while welding, so as to improve the lumber recovery of strip.
Description
Technical field：
The invention belongs to galvanizing production control technology field, more particularly to a kind of galvanizing finished product based on strip weight
Roll up Shearing Optimization method.
Background technology
Galvanizing production is to immerse the strip after derusting in the zinc liquid melted, and belt steel surface is made to adhere to zinc layers, so as to rise
To corrosion-resistant purpose, it is a kind of effective anti-corrosion of metal mode, is mainly used on the metal structure facility of every profession and trade.Galvanizing is given birth to
Production is continuous production process, is welded into coiled strip by welding machine on the head of production line and integrally produces.Go out
Mouth strip is batched, after batching in rolls after coating, a series of production processes such as aligning, passivation are completed by coiling machine completion
It needs to carry out product volume shearing according to the requirement of production technology and contract, completes the production of coil of strip.
Usually by weight or when fixed length carries out product volume shearing, not in view of the integral status of strip in production process,
The shearing requirement of product volume is simply simply met, it is unreasonable to be thus likely to result in strip shearing setting, it is impossible to effectively profit
With strip, the waste of strip is caused, reduces the lumber recovery of product.In order to improve product volume shearing when strip lumber recovery, it is necessary to
Strip Shearing Optimization setup algorithm is carried out when strip is sheared in rolls.And according to weld seam in technique and contract requirement control product volume
Quantity, with coil of strip weight co- controlling shear set.
The content of the invention
Present invention aims at a kind of galvanizing product volume Shearing Optimization method based on strip weight is provided, in original control
Increase optimal setting calculating process in system shearing setting processed, as shown in Figure 1, realize the optimal setting of strip product volume shearing,
Improve the lumber recovery of product.And it according to the quantity of weld seam in technique and contract requirement control product volume, is controlled jointly with coil of strip weight
System shearing setting.
Optimizing shear process calculation procedure：
Step 1: setup algorithm process triggers：Setup algorithm process is triggered by basic automation systems signal, when
Strip steel head or weld seam trigger setup algorithm process when entering product volume from outlet area；
Step 2: weld information determines：
When there is no weld seam on production line, terminate to carry out determining for weld information；
When there are during weld seam, carrying out weld information on production line to each subregion from outlet area to inlet region and determine, record is
The weld seam quantity found, and determine whether weld seam is first weld seam found, it calculates and determines to cut from coiling machine to outlet
The strip length of preceding first weld seam；
According to the state of weld seam front and back band steel, determine whether weld seam is the weld seam for being prohibited from entering product volume, if weld seam is
The weld seam of product volume is prohibited from entering, the strip length of this position while welding is calculated, terminates weld seam deterministic process；
Step 3: calculating the strip weight for Shearing Optimization setup algorithm, calculation process is as shown in Figure 3.
The weld information determined according to step 2 cuts preceding first commissure strip length, and root by coiling machine to outlet
The weight of this section strip steel is calculated according to the width of strip, thickness and density；
According to the zinc-plated amount of the coating of setting, weight zinc-plated needed for the section strip steel is calculated, is thus calculated from volume
Machine is taken to cut the weight for completing zinc-plated rear strip in preceding first commissure to outlet；
Required zinc-plated weight calculation formula is：
WeightZn=Wsteel×Lsteel×(Coattop+Coatbottom)
In formula：WeightZn- belt steel surface galvanizing layer weight；
Wsteel- strip width；
Lsteel- strip length；
CoattopThe zinc-plated weight of-strip upper surface unit area target；
CoatbottomThe zinc-plated weight of-strip lower surface unit area target；
Judge on production line with the presence or absence of being prohibited from entering the weld seam of product volume, if it does, by determined in step 2 from
Coiling machine calculates the weight of strip to the strip length for being prohibited from entering product volume commissure, and galvanizing layer weight needed for calculating, by
This is calculated for the strip weight of Shearing Optimization setup algorithm process.Complete strip weight calculating process；
When the weld seam for being prohibited from entering product volume is not present on production line, according to uncoiler used in production, calculate
On to uncoiler strip complete production when it is zinc-plated after strip weight, and increase a weld seam quantity.Continue to judge untapped
The same production schedule, the strip of same size product in uncoiler, coil of strip preraratory station and database, and it is zinc-plated that completion is calculated
It can be used for the strip total weight of Shearing Optimization setup algorithm afterwards；
Step 4: Shearing Optimization setup algorithm process, calculation process are as shown in Figure 4.
Strip weight judges, when the strip for cutting preceding first commissure to outlet by coiling machine being calculated in step 3
When weight is less than product volume minimum allowable weight, judge that outlet cuts whether preceding weld seam is the weldering being prohibited from entering in product volume first
Seam, if weld seam is is prohibited from entering product volume weld seam, shearing is set as in commissure, terminates shearing setting；If weld seam can be with
Into product volume, continue to judge whether weld seam quantity reaches maximum allowable quantity, when weld seam quantity is more than maximum allowable quantity,
Shearing is set in commissure, terminates shearing setting；
When the strip weight for cutting preceding first commissure to outlet by coiling machine being calculated in step 3 is located at target
When between product volume weight minimum weight and maximum weight, judge that outlet cuts whether preceding weld seam is to be prohibited from entering product volume weld seam, such as
Fruit is that then shearing is set in commissure, and shearing setting terminates；If weld seam is not the weld seam for being prohibited from entering product volume, continue
Judge whether weld seam quantity is equal to the maximum allowable weld seam number of product volume, if weld seam number has reached maximum, shearing is set in
Commissure, shearing setting terminate, otherwise continue；
According to what is be calculated in step 3 strip is determined available for Shearing Optimization setup algorithm strip weight cycle calculations
Weight can be with the volume number N of cutting, when there are N values, so that strip weight average is divided into N volumes, every coiled strip steel weight is located at product volume most
Between small weight and maximum weight, shearing is set as shearing by weight, is result of calculation per coiled strip steel weight；
During if there is no N values so that volume meets finished product rollback request again, continue the judgement of strip weight, if strip weight
When amount is more than product volume target volume weight, shearing is set as shearing by strip weight, and shearing weight is product volume target volume weight；If
Strip weight is less than product volume target volume weight, then clipped position is set in outlet and cuts preceding commissure；
Continue to judge clipped position and position while welding after shearing setting is completed, when clipped position and position while welding
Between strip length when being less than setting value, by clipped position modification in commissure, terminate shearing setting.
The calculating of shear history setup parameter is completed, setup parameter is issued to basis automatically by process automation system
Change system.
The invention is characterised in that：
1) increase Shearing Optimization setup algorithm process in zinc-plated production shearing setting, reduce since shearing setting is unreasonable
And cause the waste of strip.According to strip weight in setup algorithm is sheared, condition in order to control is sought so that product volume target volume is important
Carry out Shearing Optimization setting.
2) after Shearing Optimization setup algorithm is completed, shearing the distance between setting position and position while welding are determined, when cutting
When cutting between setting position and position while welding distance and being less than setting value, clipped position is modified to commissure.
3) weld seam number present in it is considered when calculating strip weight, is allowed in weld seam is counted to up to the product volume of setting
Terminate the calculating of strip weight during weld seam number, it is possible thereby to realize the control of weld seam quantity in product volume.
The beneficial effects of the present invention are：It is proposed a kind of feasible zinc-plated production product volume Shearing Optimization setup algorithm side
Method.When carrying out shearing setting, according to the weight of strip, weld seam situation is considered, the requirement of combining target product volume carries out
Shearing Optimization setup algorithm is calculated by optimization and obtains rational shearing setting value, reduced and cause product since shearing is unreasonable
Waste, improve product lumber recovery.And it according to the quantity of weld seam in technique and contract requirement control product volume, is total to coil of strip weight
With control shearing setting.
Description of the drawings
Fig. 1 is shearing setting process flow diagram flow chart
Fig. 2 is production line function division schematic diagram, and in figure, 1-coil of strip preraratory station, 2-uncoiler, 3-entrance cuts, 4-
Welding machine, 5-entry loop, 6-cleaning device, 7-heating furnace, 8-cooling device, 9-zinc pot, 10-polishing machine, 11-rectify
Straight machine, 12-outlet looping, 13-oiling station, 14-outlet are cut, 15-coiling machine
Fig. 3 is strip weight calculation flow chart
Fig. 4 is optimal setting calculating process flow chart
Specific embodiment
The present invention is to increase Shearing Optimization setup algorithm process in conventional magnetic shear setting.Carrying out product volume shearing setting
When, product volume is considered in production to weld seam number, the requirements such as again of product volume volume, carries out the optimization meter of product volume shear history
It calculates, so as to improve production lumber recovery in the case where meeting the requirement of technique and contract.
Shearing Optimization setting process concretely comprises the following steps：
(1) setup algorithms process is triggered by basic automation systems signal, when strip steel head or weld seam are from outlet
Setup algorithm process is triggered when entering product volume in area；
(2) each subregion inside weld information determines on production lines：
Judge weld seam state on production line, and determine that preceding first weld seam position is cut in outlet, and calculate from coiling machine
To the length of the commissure strip；
Judge with the presence or absence of the weld seam for being prohibited from entering product volume on production line, if there is calculating from coiling machine to the weld seam
Locate the length of strip.
(3) strips weight calculates；
Calculate the weight that preceding first position while welding strip is cut from coiling machine to outlet；
Calculate the strip weight for Shearing Optimization setup algorithm.
(4) Shearing Optimizations setup algorithm process；
Condition in order to control is sought so that product volume target volume is important, cycle calculations obtain rational bundling quantity；
Determine setting the distance between clipped position and position while welding, when set between clipped position and position while welding away from
During from less than setting value, clipped position is adjusted to commissure.
(5) completes the calculating of shear history setup parameter, and setup parameter is issued to basis by process automation system
Automated system.
Below by taking certain domestic galvanization production line as an example, shearing setting and optimal setting calculating process is described in detail.
Production line is divided into inlet region, entry loop area, cleaning area, Reheating Furnace Zone, painting according to process function in this example
9 area, finishing area, stretcher leveling area, outlet looping area and outlet area function divisions are plated, as shown in Fig. 2, from uncoiler to entrance
Strip is as the processing of uncoiler coil of strip before area, to coiling machine strip as product volume processing after outlet area.
According to manufacturing technique requirent and customer requirement, by strip by band that the different production schedules or steel grade, specification are different
The weld seam that steel is welded to form is handled as the weld seam for being prohibited from entering product volume；It progressively counts and welds to production line inlet region from coiling machine
Quantity is stitched, when weld seam sum is more than the weld seam number allowed in product volume, this weld seam is as the commissure for being prohibited from entering product volume
Reason, it is possible thereby to realize the control to weld seam quantity present in product volume.In product volume allow existing for weld seam quantity according to
Technique or customer requirement are set, and being set in this example allows there are weld seam quantity in product volume as 1.
This example Shearing Optimization setting process concretely comprises the following steps：
(1) setup algorithms process triggers：Setup algorithm process is triggered by basic automation systems signal, works as band
Steel head or weld seam trigger setup algorithm process when entering product volume from outlet area；
(2) weld informations determine：
When there is no weld seam on production line, terminate to carry out determining for weld information；
When there are during weld seam, carrying out weld information on production line to each subregion from outlet area to inlet region and determine, record is
The weld seam quantity found, and determine whether weld seam is first weld seam found, it calculates and determines to cut from coiling machine to outlet
The strip length of preceding first weld seam；
According to the state of weld seam front and back band steel, determine whether weld seam is the weld seam for being prohibited from entering product volume, if weld seam is
The weld seam of product volume is prohibited from entering, the strip length of this position while welding is calculated, terminates weld seam deterministic process；
(3) calculates the strip weight for Shearing Optimization setup algorithm, and calculation process is as shown in Figure 3.
According to the weld information that step (2) determines, preceding first commissure strip length, and root are cut to outlet by coiling machine
The weight of this section strip steel is calculated according to the width of strip, thickness and density；
According to the zinc-plated amount of the coating of setting, weight zinc-plated needed for the section strip steel is calculated, is thus calculated from volume
Machine is taken to cut the weight for completing zinc-plated rear strip in preceding first commissure to outlet；
Required zinc-plated weight calculation formula is：
WeightZn=Wsteel×Lsteel×(Coattop+Coatbottom)
In formula：WeightZn- belt steel surface galvanizing layer weight；
Wsteel- strip width；
Lsteel- strip length；
CoattopThe zinc-plated weight of-strip upper surface unit area target；
CoatbottomThe zinc-plated weight of-strip lower surface unit area target；
Judge on production line with the presence or absence of being prohibited from entering the weld seam of product volume, if it does, by determined in step (2) from
Coiling machine calculates the weight of strip to the strip length for being prohibited from entering product volume commissure, and galvanizing layer weight needed for calculating, by
This is calculated for the strip weight of Shearing Optimization setup algorithm process.Complete strip weight calculating process；
When the weld seam for being prohibited from entering product volume is not present on production line, according to uncoiler used in production, calculate
On to uncoiler strip complete production when it is zinc-plated after strip weight, and increase a weld seam quantity.Continue to judge untapped
The same production schedule, the strip of same size product in uncoiler, coil of strip preraratory station and database, and it is zinc-plated that completion is calculated
It can be used for the strip total weight of Shearing Optimization setup algorithm afterwards；
(4) Shearing Optimizations setup algorithm process, calculation process are as shown in Figure 4.
Strip weight judges, when the strip for cutting preceding first commissure to outlet by coiling machine being calculated in step 3
When weight is less than product volume minimum allowable weight, judge that outlet cuts whether preceding weld seam is the weldering being prohibited from entering in product volume first
Seam, if weld seam is is prohibited from entering product volume weld seam, shearing is set as in commissure, terminates shearing setting；If weld seam can be with
Into product volume, continue to judge whether weld seam quantity reaches maximum allowable quantity, when weld seam quantity is more than maximum allowable quantity,
Shearing is set in commissure, terminates shearing setting；
When the strip weight for cutting preceding first commissure to outlet by coiling machine being calculated in step 3 is located at target
When between product volume weight minimum weight and maximum weight, judge that outlet cuts whether preceding weld seam is to be prohibited from entering product volume weld seam, such as
Fruit is that then shearing is set in commissure, and shearing setting terminates；If weld seam is not the weld seam for being prohibited from entering product volume, continue
Judge whether weld seam quantity is equal to the maximum allowable weld seam number of product volume, if weld seam number has reached maximum, shearing is set in
Commissure, shearing setting terminate, otherwise continue；
According to what is be calculated in step 3 strip is determined available for Shearing Optimization setup algorithm strip weight cycle calculations
Weight can be with the volume number N of cutting, when there are N values, so that strip weight average is divided into N volumes, every coiled strip steel weight is located at product volume most
Between small weight and maximum weight, shearing is set as shearing by weight, is result of calculation per coiled strip steel weight；
During if there is no N values so that volume meets finished product rollback request again, continue the judgement of strip weight, if strip weight
When amount is more than product volume target volume weight, shearing is set as shearing by strip weight, and shearing weight is product volume target volume weight；If
Strip weight is less than product volume target volume weight, then clipped position is set in outlet and cuts preceding commissure；
Continue to judge clipped position and position while welding after shearing setting is completed, when clipped position and position while welding
Between strip length when being less than outlet section length, by clipped position modification in commissure, terminate shearing setting.
(5) completes the calculating of shear history setup parameter, and setup parameter is issued to basis by process automation system
Automated system.
Optimization to shearing setting value can be realized using above step.Strip basic parameter is as follows in example：
It is with steel dimensions：Thickness 1.0mm, width 1200mm；It shares 10 coiled strip steels to be produced, coil of strip weight such as table 1.
Table 1
| Coil of strip is numbered | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Coil of strip weight/103Kg | 21.5 | 19.8 | 20.4 | 19.7 | 18.9 | 23.3 | 22.6 | 21.2 | 20.5 | 21.8 |
Strip double side zinc coating amount is 200g/m2, target product volume volume weight be：20×103Kg, product volume volume weight minimum value：18
×103Kg, product volume volume weight maximum：22×103Kg。
The shearing setting result such as table 2 when use Shearing Optimization setup algorithm.
Table 2
| Coil of strip is numbered | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Coil of strip weight/103Kg | 20.9 | 20.9 | 20.9 | 20.77 | 20.9 | 20.3 | 20.9 | 20.9 | 20.9 | 21.0 |
When without Shearing Optimization setup algorithm, shear history weighs 20 × 10 by product volume target volume3Kg is sheared
Setting, this shearing setting 9197Kg tailings can occur finally, strip caused to waste.
When carrying out Shearing Optimization setup algorithm, then only it is present with 810Kg tailings.It can be seen that it is set using Shearing Optimization
Calculating can reduce strip due to waste caused by shear history.
Claims (1)
- A kind of 1. galvanizing product volume Shearing Optimization method based on strip weight, it is characterised in that：Step 1: setup algorithm process triggers：Setup algorithm process is triggered by basic automation systems signal, works as strip Head or weld seam trigger setup algorithm process when entering product volume from outlet area；Step 2: weld information determines：When there is no weld seam on production line, terminate to carry out determining for weld information；When there are during weld seam, carrying out weld information on production line to each subregion from outlet area to inlet region and determine, record has been searched The weld seam quantity arrived, and determine whether weld seam is first weld seam found, it calculates and determines to cut preceding the from coiling machine to outlet The strip length of one weld seam；According to the state of weld seam front and back band steel, determine whether weld seam is the weld seam for being prohibited from entering product volume, if weld seam is to forbid Into the weld seam of product volume, the strip length of this position while welding is calculated, terminates weld seam deterministic process；Step 3: calculate the strip weight for Shearing Optimization setup algorithm：The weld information determined according to step 2, by batching Machine cuts preceding first commissure strip length to outlet, and this section strip steel is calculated according to the width of strip, thickness and density Weight；According to the zinc-plated amount of the coating of setting, weight zinc-plated needed for the section strip steel is calculated, is thus calculated from coiling machine The weight for completing zinc-plated rear strip in preceding first commissure is cut to outlet；Required zinc-plated weight calculation formula is：WeightZn=Wsteel×Lsteel×(Coattop+Coatbottom)In formula：WeightZn- belt steel surface galvanizing layer weight；Wsteel- strip width；Lsteel- strip length；CoattopThe zinc-plated weight of-strip upper surface unit area target；CoatbottomThe zinc-plated weight of-strip lower surface unit area target；Judge on production line with the presence or absence of being prohibited from entering the weld seam of product volume, if it does, by being determined in step 2 from batching Machine calculates the weight of strip to the strip length for being prohibited from entering product volume commissure, and galvanizing layer weight needed for calculating, and thus counts Calculation is obtained for the strip weight of Shearing Optimization setup algorithm process；When the weld seam for being prohibited from entering product volume is not present on production line, according to uncoiler used in production, it is calculated out On volume machine strip complete production when it is zinc-plated after strip weight, and increase a weld seam quantity；Continue to judge untapped uncoiling The same production schedule, the strip of same size product in machine, coil of strip preraratory station and database, and be calculated complete it is zinc-plated after can For the strip total weight of Shearing Optimization setup algorithm；Step 4: Shearing Optimization setup algorithm process：Strip weight judges, when the strip weight for cutting preceding first commissure to outlet by coiling machine being calculated in step 3 During less than product volume minimum allowable weight, judge that outlet cuts whether preceding weld seam is the weld seam being prohibited from entering in product volume first, such as To be prohibited from entering product volume weld seam, shearing is set as in commissure fruit weld seam, terminates shearing setting；If weld seam can enter into Product are rolled up, and continue to judge whether weld seam quantity reaches maximum allowable quantity, and when weld seam quantity is more than maximum allowable quantity, shearing is set Commissure is scheduled on, terminates shearing setting；When the strip weight for cutting preceding first commissure to outlet by coiling machine being calculated in step 3 is located at target finished product When between volume weight minimum weight and maximum weight, judge that outlet cuts whether preceding weld seam is to be prohibited from entering product volume weld seam, if so, Then shearing is set in commissure, and shearing setting terminates；If weld seam is not the weld seam for being prohibited from entering product volume, continue to judge weldering Stitch whether quantity is equal to the maximum allowable weld seam number of product volume, if weld seam number has reached maximum, shearing is set in commissure, Shearing setting terminates, and otherwise continues；According to what is be calculated in step 3 strip weight is determined available for Shearing Optimization setup algorithm strip weight cycle calculations It can be with the volume number N of cutting, when there are N values, so that strip weight average is divided into N volumes, every coiled strip steel weight is located at the minimum weight of product volume Between amount and maximum weight, shearing is set as shearing by weight, is result of calculation per coiled strip steel weight；During if there is no N values so that volume meets finished product rollback request again, continue the judgement of strip weight, if strip weight is big When product volume target volume weight, shearing is set as shearing by strip weight, and shearing weight is product volume target volume weight；If strip Weight is less than product volume target volume weight, then clipped position is set in outlet and cuts preceding commissure；Continue to judge clipped position and position while welding after shearing setting is completed, when between clipped position and position while welding Strip length when being less than setting value, by clipped position modification in commissure, terminate shearing setting；The calculating of shear history setup parameter is completed, setup parameter is issued to basic automatization system by process automation system System.
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| CN112001591B (en) * | 2020-07-20 | 2022-04-19 | 包头钢铁（集团）有限责任公司 | Evaluation method for reasonably determining shearing scheme according to surface quality of strip steel |
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