CN108296551A - A kind of end trimming shears method of adjustment promoting deep punching steel trimming quality - Google Patents
A kind of end trimming shears method of adjustment promoting deep punching steel trimming quality Download PDFInfo
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- CN108296551A CN108296551A CN201810015556.6A CN201810015556A CN108296551A CN 108296551 A CN108296551 A CN 108296551A CN 201810015556 A CN201810015556 A CN 201810015556A CN 108296551 A CN108296551 A CN 108296551A
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- trimming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D31/00—Shearing machines or shearing devices covered by none or more than one of the groups B23D15/00 - B23D29/00; Combinations of shearing machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
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- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
A kind of end trimming shears method of adjustment promoting deep punching steel trimming quality of the present invention establishes end trimming shears gap value in the level two of control end trimming shears and adjusts mathematical model, the GAP values for being suitable for deep punching steel trimming and LAP values are determined according to belt steel thickness first：Then, level two automatically controls the adjustment that end trimming shears carry out gap value using the mathematical model of foundation, completes the shearing of steel edge portion；When flash occurs in steel edge portion, show cutting edge aging, at this point, manually adjust end trimming shears gap value, it is 25% 35% so that the best tear fracture face thickness of trimming is accounted for the ratio of belt steel thickness.The present invention can be obviously improved deep punching steel product quality, and product flash ratio of defects reduces 85% or more, has prodigious effect to cold-rolled products quality and steady production, preferably resolves the bottleneck problem of strip trimming.
Description
Technical field
The present invention relates to a kind of end trimming shears methods of adjustment promoting deep punching steel trimming quality, belong to cold-strip steel end trimming shears
Control method technical field.
Background technology
In cold-rolled steel strip products production process, end trimming shears are used for shearing side defects of strip steel, and ensure entire strip
Equivalent width improves the width accuracy of strip；End trimming shears are widely used in push pull pickling line, continuous acid-washing unit, pickling-
Milling train Unit erriger, Precise asymptotics and rewinding unit are the important procedures in strip production process；End trimming shears gap value is by GAP
Value（Gap width, unit：mm）With LAP values（Mesh volume, unit：mm）Common to determine, accurate, the timely adjustment in end trimming shears gap is determined
Determine the trimming quality of strip.Increasingly increase with market to flat cold-rolled sheet demand, and strip property and quality are wanted
The increasingly promotion asked, it is relatively previous more stringent to steel edge portion quality requirement in the production of high-quality cold-strip steel：It is required that band
The defects of steel both sides edge section flat is straight, bright and clean, and no flash, side are split, so that next procedure produces.In actual production process
In, especially in the production process of deep punching steel, because the material is soft for deep punching steel, end trimming shears in trimming, end trimming shears gap value compared with
Hardly possible adjustment, gap is improper or adjusting the reasons such as not in time easily causes finished strip flash defect occur because manually adjusting, seriously
Strip finished product quality of edges is influenced, and then influences Business Economic Benefit.
Invention content
Technical problem to be solved by the invention is to provide a kind of end trimming shears adjustment sides promoting deep punching steel trimming quality
Method adjusts mathematical model, when adjusting deep punching steel shearing by the way of automatically and manually combining by establishing end trimming shears gap value
End trimming shears gap, be effectively improved deep punching steel trimming quality.
In order to solve the above technical problems, the technical scheme is that：
A kind of end trimming shears method of adjustment promoting deep punching steel trimming quality, includes the following steps：
Step 1：End trimming shears gap value is established in the level two of control end trimming shears and adjusts mathematical model, according to belt steel thickness
Determine the GAP values for being suitable for deep punching steel trimming and LAP values：
Formula（1）And formula（2）In：H is belt steel thickness；
Step 2：Level two automatically controls the adjustment that end trimming shears carry out gap value using the mathematical model that step 1 is established, complete
At the shearing of steel edge portion；
Step 3：When flash occurs in steel edge portion, show cutting edge aging, at this point, manually adjusting end trimming shears gap value, makes trimming
The ratio that best tear fracture face thickness accounts for belt steel thickness is 25%-35%.
A kind of above-mentioned end trimming shears method of adjustment promoting deep punching steel trimming quality is manually adjusted in the step 3 and is cut
While the method for cutting gap value is：First adjustment GAP values adjust LAP values, specially if still there is flash：
When tear fracture face thickness is less than the 25% of belt steel thickness, increase GAP values according to the gradient of 0.01*h, if trimming quality improves,
It is 25%-35% so that the best tear fracture face thickness of trimming is accounted for the ratio of belt steel thickness, then no longer carries out LAP value adjustment；If trimming quality
It is not clearly better, then reduces LAP values according to the gradient of 0.01*h；Until trimming quality improves, keep the best tear section of trimming thick
The ratio that degree accounts for belt steel thickness is 25%-35%.
When tear fracture face thickness is higher than the 35% of belt steel thickness, GAP values are reduced according to the gradient of 0.01*h, if trimming quality
It improves, it is 25%-35% so that the best tear fracture face thickness of trimming is accounted for the ratio of belt steel thickness, then no longer carries out LAP value adjustment；If trimming
Quality is not clearly better, then increases LAP values according to the gradient of 0.01*h；Until trimming quality improves, make the best tear fracture of trimming
The ratio that face thickness accounts for belt steel thickness is 25%-35%.
Beneficial effects of the present invention are：
The present invention is groped, it is established that deep punching steel by acquiring a large amount of end trimming shears gap magnitude in actual production through studying for a long period of time
The mathematical model of trimming clearance G AP values and mesh volume LAP values, and the mathematical model is maintained in level two, realize deep-draw
The automatic calling of end trimming shears gap value parameter when steel trimming；When aging occurs in cutting edge, LAP is adjusted again by first adjusting GAP values
The method of value is carried out the compensation adjustment of gap value by gradient, and then trimming quality has been effectively ensured, and improves product quality；
For the present invention after Handan Iron and Steel Co group cold rolling mill is implemented, product flash ratio of defects reduces 85% or more, to cold-rolled products quality and
Steady production has prodigious effect, preferably resolves the bottleneck problem of strip trimming.
Description of the drawings
Fig. 1 is the typical trimming quality figure before the present invention is implemented；
Fig. 2 is that the present invention implements 1 trimming quality figure；
Fig. 3 is that the present invention implements 2 trimming quality figures；
Fig. 4 is that the present invention implements 3 trimming quality figures.
Specific implementation mode
A kind of end trimming shears method of adjustment promoting deep punching steel trimming quality of the present invention, includes the following steps：
Step 1: establishing end trimming shears gap value in the level two of control end trimming shears adjusts mathematical model, according to belt steel thickness
Determine the GAP values for being suitable for deep punching steel（Gap width, unit mm）With LAP values（Mesh volume, unit mm）：
Wherein：H is belt steel thickness；
When flash occurs in steel edge portion, showing that cutting edge starts aging, end trimming shears gap value first adjusts GAP values using manual, after
The method for adjusting LAP values, until the ratio that the best tear fracture face thickness of trimming accounts for belt steel thickness is 25%-35%.
When tear fracture face thickness is less than the 25% of belt steel thickness, increase GAP values according to the gradient of 0.01*h, if trimming quality
It improves, it is 25%-35% so that the best tear fracture face thickness of trimming is accounted for the ratio of belt steel thickness, then no longer carries out LAP value adjustment；If trimming
Quality is not clearly better, and LAP values are reduced according to the gradient of 0.01*h；Until trimming quality improves, make the best tear section of trimming
The ratio that thickness accounts for belt steel thickness is 25%-35%.
When tear fracture face thickness is higher than the 35% of belt steel thickness, GAP values are reduced according to the gradient of 0.01*h, if trimming quality
It improves, it is 25%-35% so that the best tear fracture face thickness of trimming is accounted for the ratio of belt steel thickness, then no longer carries out LAP value adjustment；If trimming
Quality is not clearly better, and increases LAP values according to the gradient of 0.01*h；Until trimming quality improves, make the best tear section of trimming
The ratio that thickness accounts for belt steel thickness is 25%-35%.
The present invention will be further described by the following examples：
Embodiment 1：Production deep-draw belt steel thickness is 2.8mm, and when normal trimming, level two carries out GAP values according to model formation
It is as follows with the automatic calling of LAP values：
End trimming shears clearance G AP valve systems are automatically regulated to be 0.47mm, and mesh volume LAP valve systems are automatically regulated to be 1.53mm；
When tear fracture face thickness is less than the 25% of belt steel thickness, increase GAP values, GAP values according to the gradient of 0.01*2.8=0.028mm
It manually adjusts as 0.47+0.028=0.498mm, it is found that trimming quality improves, the best tear fracture face thickness of trimming is made to account for belt steel thickness
Ratio be 25%-35%, then no longer carry out LAP value adjustment；After GAP values are manually adjusted to 0.498, it is found that trimming quality does not have
Be clearly better, then according to the gradient of 0.01*2.8=0.028mm reduce LAP values, LAP values manually adjust for 1.53-0.028=
1.502mm, until trimming quality improves, it is 25%-35% so that tear fracture face thickness is accounted for the ratio of belt steel thickness.
When tear fracture face thickness is higher than the 35% of belt steel thickness, GAP values are reduced according to the gradient of 0.01*2.8=0.028mm,
GAP values manually adjust as 0.47-0.028=0.442mm, it is found that trimming quality improves, the best tear fracture face thickness of trimming is made to account for strip
The ratio of thickness is 25%-35%, then no longer carries out LAP value adjustment；After GAP values are manually adjusted to 0.442, trimming quality is found
Be not clearly better, then according to the gradient of 0.01*2.8=0.028mm increase LAP values, LAP values manually adjust for 1.53+0.028=
1.558mm, until trimming quality improves, it is 25%-35% so that tear fracture face thickness is accounted for the ratio of belt steel thickness
By level two to the automatic calling of trimming clearance G AP values and LAP values, when in conjunction with cutting edge aging manually to GAP values and
The adjustment that LAP values carry out, effectively improves the trimming quality of deep punching steel.
Embodiment 2：Production deep-draw belt steel thickness is 3.5mm, and when normal trimming, level two is carried out according to model formation
The automatic calling of GAP values and LAP values is as follows：
End trimming shears clearance G AP valve systems are automatically regulated to be 0.58mm, and mesh volume LAP valve systems are automatically regulated to be 1.42mm；
When tear fracture face thickness is less than the 25% of belt steel thickness, increase GAP values, GAP values according to the gradient of 0.01*3.5=0.035mm
It manually adjusts as 0.58+0.035=0.615mm, it is found that trimming quality improves, the best tear fracture face thickness of trimming is made to account for belt steel thickness
Ratio be 25%-35%, then no longer carry out LAP value adjustment；After GAP values are manually adjusted to 0.615, it is found that trimming quality does not have
Be clearly better, according to 0.01*3.5=0.035mm gradient reduce LAP values, LAP values manually adjust for 1.42-0.035=
1.385mm, until trimming quality improves, it is 25%-35% so that tear fracture face thickness is accounted for the ratio of belt steel thickness.
When tear fracture face thickness is higher than the 35% of belt steel thickness, GAP values are reduced according to the gradient of 0.01*3.5=0.035mm,
GAP values manually adjust as 0.58-0.035=0.545mm, it is found that trimming quality improves, the best tear fracture face thickness of trimming is made to account for strip
The ratio of thickness is 25%-35%, then no longer carries out LAP value adjustment；After GAP values are manually adjusted to 0.545, trimming quality is found
Be not clearly better, according to 0.01*3.5=0.035mm gradient increase LAP values, LAP values manually adjust for 1.42+0.035=
1.455mm, until trimming quality improves, it is 25%-35% so that tear fracture face thickness is accounted for the ratio of belt steel thickness.
Above to the adjustment in trimming gap, the trimming quality of deep punching steel is effectively improved.
Embodiment 3：Production deep-draw belt steel thickness is 4.6mm, and when normal trimming, level two is carried out according to model formation
The automatic calling of GAP values and LAP values is as follows：
End trimming shears clearance G AP valve systems are automatically regulated to be 0.77mm, and mesh volume LAP valve systems are automatically regulated to be 1.23mm；
When tear fracture face thickness is less than the 25% of belt steel thickness, increase GAP values, GAP values according to the gradient of 0.01*4.6=0.046mm
It manually adjusts as 0.77+0.046=0.816mm, it is found that trimming quality improves, the best tear fracture face thickness of trimming is made to account for belt steel thickness
Ratio be 25%-35%, then no longer carry out LAP value adjustment；After GAP values are manually adjusted to 0.816, it is found that trimming quality does not have
Be clearly better, according to 0.01*4.6=0.046mm gradient reduce LAP values, LAP values manually adjust for 1.23-0.046=
1.184mm, until trimming quality improves, it is 25%-35% so that tear fracture face thickness is accounted for the ratio of belt steel thickness.
When tear fracture face thickness is higher than the 35% of belt steel thickness, GAP values are reduced according to the gradient of 0.01*4.6=0.046mm,
GAP values manually adjust as 0.77-0.046=0.724mm, it is found that trimming quality improves, the best tear fracture face thickness of trimming is made to account for strip
The ratio of thickness is 25%-35%, then no longer carries out LAP value adjustment；After GAP values are manually adjusted to 0.724, trimming quality is found
Be not clearly better, according to 0.01*4.6=0.046mm gradient increase LAP values, LAP values manually adjust for 1.23+0.046=
1.276mm, until trimming quality improves.It is 25%-35% so that tear fracture face thickness is accounted for the ratio of belt steel thickness.
By the adjustment carried out manually when automatic calling and the cutting edge aging in trimming gap, the trimming of deep punching steel is improved
Quality.
After the present invention is implemented, the workload that operating personnel manually adjust parameter can be effectively reduced, the deep punching steel of foundation is passed through
Trimming clearance G AP values and mesh volume LAP value mathematical models, and by the model maintenance in level two, join when realizing trimming
Several automatic calling；When aging occurs in cutting edge, compensated manually by gradient by the parameter adjustment mode of LAP after first GAP, into
And it is effectively guaranteed trimming quality, product quality is improved, product flash ratio of defects reduces 85% or more, to cold-rolled products
Quality and steady production have prodigious effect, preferably resolve the bottleneck problem of strip trimming.
Claims (2)
1. a kind of end trimming shears method of adjustment promoting deep punching steel trimming quality, it is characterised in that：Include the following steps：
Step 1：End trimming shears gap value is established in the level two of control end trimming shears and adjusts mathematical model, according to belt steel thickness
Determine the GAP values for being suitable for deep punching steel trimming and LAP values：
Formula（1）And formula（2）In：H is belt steel thickness；
Step 2：Level two automatically controls the adjustment that end trimming shears carry out gap value using the mathematical model that step 1 is established, complete
At the shearing of steel edge portion；
Step 3：When flash occurs in steel edge portion, show cutting edge aging, at this point, manually adjusting end trimming shears gap value, makes trimming
The ratio that best tear fracture face thickness accounts for belt steel thickness is 25%-35%.
2. a kind of end trimming shears method of adjustment promoting deep punching steel trimming quality as described in claim 1, it is characterised in that：Institute
Stating the method that end trimming shears gap value is manually adjusted in step 3 is：First adjustment GAP values adjust LAP if still there is flash
Value, specially：
When tear fracture face thickness is less than the 25% of belt steel thickness, increase GAP values according to the gradient of 0.01*h, if trimming quality improves,
It is 25%-35% so that the best tear fracture face thickness of trimming is accounted for the ratio of belt steel thickness, then no longer carries out LAP value adjustment；If trimming quality
It is not clearly better, then reduces LAP values according to the gradient of 0.01*h；Until trimming quality improves, keep the best tear section of trimming thick
The ratio that degree accounts for belt steel thickness is 25%-35%；
When tear fracture face thickness is higher than the 35% of belt steel thickness, GAP values are reduced according to the gradient of 0.01*h, if trimming quality improves,
It is 25%-35% so that the best tear fracture face thickness of trimming is accounted for the ratio of belt steel thickness, then no longer carries out LAP value adjustment；If trimming quality
It is not clearly better, then increases LAP values according to the gradient of 0.01*h；Until trimming quality improves, keep the best tear section of trimming thick
The ratio that degree accounts for belt steel thickness is 25%-35%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108890021A (en) * | 2018-07-24 | 2018-11-27 | 闫羽 | A kind of soft state thin plate slitting method |
| CN109047899A (en) * | 2018-07-24 | 2018-12-21 | 闫羽 | A kind of soft state thin plate slitting guide and guards |
| CN110576214A (en) * | 2019-09-17 | 2019-12-17 | 攀钢集团西昌钢钒有限公司 | trimming quality control method |
| CN112658031A (en) * | 2020-12-10 | 2021-04-16 | 华菱安赛乐米塔尔汽车板有限公司 | Control method for improving edge forming of cold-rolled hot-galvanized high-strength dual-phase steel |
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| CN103357944A (en) * | 2013-07-10 | 2013-10-23 | 河北钢铁股份有限公司邯郸分公司 | IF steel hot rolled materials acid rolling trimming quality control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108890021A (en) * | 2018-07-24 | 2018-11-27 | 闫羽 | A kind of soft state thin plate slitting method |
| CN109047899A (en) * | 2018-07-24 | 2018-12-21 | 闫羽 | A kind of soft state thin plate slitting guide and guards |
| CN109047899B (en) * | 2018-07-24 | 2019-11-12 | 浙江郑林机械股份有限公司 | A kind of soft state thin plate slitting guide and guards |
| CN110576214A (en) * | 2019-09-17 | 2019-12-17 | 攀钢集团西昌钢钒有限公司 | trimming quality control method |
| CN112658031A (en) * | 2020-12-10 | 2021-04-16 | 华菱安赛乐米塔尔汽车板有限公司 | Control method for improving edge forming of cold-rolled hot-galvanized high-strength dual-phase steel |
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