CN101259507A - Judging and processing method of double-edge shear steel plate teeth edge - Google Patents
Judging and processing method of double-edge shear steel plate teeth edge Download PDFInfo
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- CN101259507A CN101259507A CNA2007100880162A CN200710088016A CN101259507A CN 101259507 A CN101259507 A CN 101259507A CN A2007100880162 A CNA2007100880162 A CN A2007100880162A CN 200710088016 A CN200710088016 A CN 200710088016A CN 101259507 A CN101259507 A CN 101259507A
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- steel plate
- age
- pinch roll
- draught animal
- value
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Abstract
The invention provides a judging and treating method for a steel plate notcher in a pair of double side shears which judges and finds out a withdrawal roll which has a problematic rotary speed according to the shape of the notcher and the position of the notcher in the steel plate and carries out corresponding adjustments on the P<444> value of the motor of the withdrawal roll in a contravariant tank to lead the P<444> value to accord with the technique requirements. The probability of the appearance of the existing notcher can be reduced from 40 percent to 0.15 percent by adopting the invention; the qualification rate is improved; and the pair of double side shears can run stably and effectively.
Description
Technical field
The present invention relates to the steel plate shearing technology in the Ferrous Metallurgy industry steel rolling technology, particularly a kind of judgement and processing method that occurs the age of a draught animal at bilateral scissors shearing light plate.
Background technology
The formation of existing bilateral scissors is as shown in Figure 1: the mobile B of cutting that fixedly cuts A and be located at the north that is located at south constitutes bilateral shearing main body, be provided with four pairs of pinch rolls being made up of top pinch roll 1,2,3,4 and bottom pinch roll 5,6,7,8 (not drawing) in their both sides, 2～30 meters long steel plate C enters in the bilateral scissors by operation from left to right and through the pinch roll clamping and shears.In the shearing of bilateral scissors, once descend cutter to shear long 1.0～1.3 meters, shear once more or repeatedly shear, in shearing, if steel plate C sideslip, on steel plate C the age of a draught animal then can appear, in the shearing of existing bilateral scissors, this kind phenomenon frequently occurs, and the probability of appearance accounts for 40%, influence is produced, and seriously restricts steel plate and according to the contract requires width delivery.
Summary of the invention
The objective of the invention is at existing bilateral scissors in the shearing of steel plate; steel plate the age of a draught animal occurs through regular meeting; influence is produced; serious restriction steel plate according to the contract requires the problem of delivering goods; and propose a kind ofly age of a draught animal phenomenon is appearred in steel plate to judge; in time find out reason and adjust the method for processing, thereby in steel plate shearing, eliminate age of a draught animal phenomenon, guarantee that bilateral scissors effectively move.
As shown in Figure 2, the age of a draught animal of steel plate C is divided into outer age of a draught animal D and interior age of a draught animal F.As can be known, the reason that the age of a draught animal appears in steel plate is that steel plate sideslip institute takes place extremely in shearing from produce, and the reason of steel plate sideslip then is because four groups of inconsistent causing of pinch roll rotating speed.How judging that according to the form of the steel plate age of a draught animal and at the different parts of steel plate finding out rotating speed has the pinch roll of problem and it is adjusted, is problem to be solved by this invention.
Can realize purpose of the present invention by following technical proposals.The judgement of a kind of bilateral scissors light plate age of a draught animal and processing method is characterized in that:
1, press the steel plate throughput direction, to the judgement of steel plate age of a draught animal phenomenon:
(1), if the outer age of a draught animal appears in the left side of steel plate head, can conclude it is that the top pinch roll rotating speed of steel plate left side import department is too fast, tackle the P of motor in the inversion cabinet of this pinch roll
444Value is adjusted.
(2), if the outer age of a draught animal appears in the right of steel plate head, can conclude it is that the top pinch roll rotating speed of import department is too fast on the right of the steel plate, tackle the P of motor in the inversion cabinet of this pinch roll
444Value is adjusted.
(3), can conclude it is that the top pinch roll rotating speed in exit, the steel plate left side is too fast, tackle the P of motor in the inversion cabinet of this pinch roll if the outer age of a draught animal appears in the left side at steel plate middle part
444Value is adjusted.
(4), can conclude it is that the top pinch roll rotating speed in exit is too fast on the right of the steel plate, tackle the P of motor in the inversion cabinet of this pinch roll if the outer age of a draught animal appears in the right at steel plate middle part
444Value is adjusted.
(5), can conclude it is that the top pinch roll rotating speed in exit, the steel plate left side is too fast, tackle the P of motor in the inversion cabinet of this pinch roll if the outer age of a draught animal appears in the left side of steel plate afterbody
444Value is adjusted.
(6), can conclude it is that the top pinch roll rotating speed in exit is too fast on the right of the steel plate, tackle the P of motor in the inversion cabinet of this pinch roll if the outer age of a draught animal appears in the right of steel plate afterbody
444Value is adjusted.
2, according to above-mentioned judgement, the processing method of phenomenon is to the steel plate age of a draught animal, according to the degree of depth of the steel plate age of a draught animal, and 100% being benchmark, P
444Adjusted value is:
(1), the age of a draught animal degree of depth 1～2mm, P
444Adjusted value is: 100%-0.2～0.6%;
(2), the age of a draught animal degree of depth 3～10mm, P
444Adjusted value is: 100%-0.8～1.0%;
(3), the age of a draught animal degree of depth 10～20mm, P
444Adjusted value is: 100%-1.0～3.0%.
Effect of the present invention is: in the shearing of bilateral scissors, can use the present invention that the age of a draught animal phenomenon on the steel plate is judged exactly, find out the problematic pinch roll of rotating speed, and it is adjusted make it meet technological requirement.The probability that adopts the present invention that the existing age of a draught animal is occurred reduces to 0.15% by 40%; Qualification rate improves, and bilateral scissors can be stablized, efficiently operation.
Description of drawings
Fig. 1 is the horizontal layout schematic diagram of bilateral scissors among the present invention;
Fig. 2 is the schematic diagram of light plate age of a draught animal kind of the present invention;
Below in conjunction with drawings and Examples the present invention is further set forth:
The specific embodiment
Referring to Fig. 1, fixedly cut A and move that to cut B be the bilateral scissors main body, be provided with four pairs of pinch rolls forming by top pinch roll 1,2,3,4 and bottom pinch roll 5,6,7,8 (not drawing) in their both sides. Top pinch roll 1,2 and bottom pinch roll 5,6 are two pairs of pinch rolls of inlet side; Top pinch roll 3,4 and bottom pinch roll 7,8 are two pairs of pinch rolls of outlet side.Steel plate C enters in the bilateral scissors by operation from left to right and through the pinch roll clamping and shears.The bilateral scissors transmission system though adopted encoder as feedback speed signal, constitutes the higher speed closed loop control of ratio of precision, and PI parameter dynamic response characteristic has error slightly in every parameter of electric machine and the inversion cabinet, must cause the error of motor actual speed.Because the motor of 4 bottom pinch rolls 5,6,7,8 has adopted the rigidity connection, can guarantee between two synchronously.But just there has been error in the dynamic synchronization between the motor of top pinch roll 1,2,3,4 and bottom pinch roll 5,6,7,8.According to actual observation, when shearing the above thickness steel plate of 20mm, there is not sideslip in speed error basically during every empty load of motor between 10～15%, and 20mm has just reflected with the lower steel plate deviation phenomenon.Therefore to just can reach synchronous by adjusting the relevant parameter of motor in the inversion cabinet.The steel plate age of a draught animal that the steel plate sideslip occurs in shearing is divided into outer age of a draught animal D and interior age of a draught animal F as shown in Figure 2.
Illustrate by the steel plate throughput direction.
Embodiment 5, and in bilateral scissors were sheared, the outer age of a draught animal appearred in the left side, steel plate C middle part, and the degree of depth of the age of a draught animal is 2mm, can judge in view of the above to be that top pinch roll 3 rotating speeds are too fast; The motor of top pinch roll 3 is P in the inversion cabinet
444Parameter adjustment be 99.4%, promptly base value 100%-adjusts several 0.6%.By adjusting, bilateral scissors can normally move.
Embodiment 6, and in bilateral scissors were sheared, the outer age of a draught animal appearred in the right, steel plate C middle part, and the degree of depth of the age of a draught animal is 10mm, can judge in view of the above to be that top pinch roll 4 rotating speeds are too fast; The motor of top pinch roll 4 is P in the inversion cabinet
444Parameter adjustment be 99.0%, promptly base value 100%-adjusts several 1.0%.By adjusting, bilateral scissors can normally move.
Embodiment 7, and in bilateral scissors were sheared, steel plate C afterbody only was sheared (as follows) the right by two pairs of pinch roll clampings of outlet side and the outer age of a draught animal occurs, and the degree of depth of the age of a draught animal is 4mm, can judge in view of the above to be that top pinch roll 4 rotating speeds are too fast; The motor of top pinch roll 4 is P in the inversion cabinet
444Parameter adjustment be 99.0%, promptly base value 100%-adjusts several 1.0%.By adjusting, bilateral scissors can normally move.
Embodiment 8, and in bilateral scissors were sheared, the outer age of a draught animal appearred in the steel plate C afterbody left side, and the degree of depth of the age of a draught animal is 7mm, can judge in view of the above to be that top pinch roll 3 rotating speeds are too fast; The motor of top pinch roll 3 is P in the inversion cabinet
444Parameter adjustment be 99.0%, promptly base value 100%-adjusts several 1.0%.By adjusting, bilateral scissors can normally move.
Embodiment 9, and in bilateral scissors were sheared, the outer age of a draught animal appearred in the steel plate C afterbody left side, and the degree of depth of the age of a draught animal is 20mm, can judge in view of the above to be that top pinch roll 3 rotating speeds are too fast; The motor of top pinch roll 3 is P in the inversion cabinet
444Parameter adjustment be 97.0%, promptly base value 100%-adjusts several 3.0%.By adjusting, bilateral scissors can normally move.
Claims (2)
1. the judgement of a bilateral scissors light plate age of a draught animal and processing method is characterized in that: press the steel plate throughput direction, to being judged as of steel plate age of a draught animal phenomenon:
(1), if the outer age of a draught animal appears in the left side of steel plate head, can conclude it is that the top pinch roll rotating speed of steel plate left side import department is too fast, tackle the P of motor in the inversion cabinet of this pinch roll
444Value is adjusted;
(2), if the outer age of a draught animal appears in the right of steel plate head, can conclude it is that the top pinch roll rotating speed of import department is too fast on the right of the steel plate, tackle the P of motor in the inversion cabinet of this pinch roll
444Value is adjusted;
(3), can conclude it is that the top pinch roll rotating speed in exit, the steel plate left side is too fast, tackle the P of motor in the inversion cabinet of this pinch roll if the outer age of a draught animal appears in the left side at steel plate middle part
444Value is adjusted;
(4), can conclude it is that the top pinch roll rotating speed in exit is too fast on the right of the steel plate, tackle the P of motor in the inversion cabinet of this pinch roll if the outer age of a draught animal appears in the right at steel plate middle part
444Value is adjusted;
(5), can conclude it is that the top pinch roll rotating speed in exit, the steel plate left side is too fast, tackle the P of motor in the inversion cabinet of this pinch roll if the outer age of a draught animal appears in the left side of steel plate afterbody
444Value is adjusted;
(6), can conclude it is that the top pinch roll rotating speed in exit is too fast on the right of the steel plate, tackle the P of motor in the inversion cabinet of this pinch roll if the outer age of a draught animal appears in the right of steel plate afterbody
444Value is adjusted.
2. the processing method of judgement according to claim 1 is characterized in that: according to the degree of depth of the steel plate age of a draught animal, and 100% being benchmark, P
444Adjusted value is:
(1), the age of a draught animal degree of depth 1～2mm, P
444Adjusted value is: 100%-0.2～0.6%;
(2), the age of a draught animal degree of depth 3～10mm, P
444Adjusted value is: 100%-0.8～1.0%;
(3), the age of a draught animal degree of depth 10～20mm, P
444Adjusted value is: 100%-1.0～3.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100880162A CN101259507A (en) | 2007-03-08 | 2007-03-08 | Judging and processing method of double-edge shear steel plate teeth edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100880162A CN101259507A (en) | 2007-03-08 | 2007-03-08 | Judging and processing method of double-edge shear steel plate teeth edge |
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| Publication Number | Publication Date |
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| CN101259507A true CN101259507A (en) | 2008-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100880162A Pending CN101259507A (en) | 2007-03-08 | 2007-03-08 | Judging and processing method of double-edge shear steel plate teeth edge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423787A (en) * | 2011-12-07 | 2012-04-25 | 宝钢工程技术集团有限公司 | Adjusting mechanism and deviation correcting method for bilateral scissor pinch rollers |
| CN102489622A (en) * | 2011-11-14 | 2012-06-13 | 湖南华菱湘潭钢铁有限公司 | Adjustment method for pinch roll of double-sided shears |
| CN104841697A (en) * | 2015-05-15 | 2015-08-19 | 南京钢铁股份有限公司 | Control method for automatically preventing steel plate from deflection in shearing process of bilateral scissors |
| CN106271828A (en) * | 2016-08-19 | 2017-01-04 | 南京钢铁股份有限公司 | Circle shear shear history is automatically prevented from the control method of Plate transferring deviation |
-
2007
- 2007-03-08 CN CNA2007100880162A patent/CN101259507A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489622A (en) * | 2011-11-14 | 2012-06-13 | 湖南华菱湘潭钢铁有限公司 | Adjustment method for pinch roll of double-sided shears |
| CN102423787A (en) * | 2011-12-07 | 2012-04-25 | 宝钢工程技术集团有限公司 | Adjusting mechanism and deviation correcting method for bilateral scissor pinch rollers |
| CN104841697A (en) * | 2015-05-15 | 2015-08-19 | 南京钢铁股份有限公司 | Control method for automatically preventing steel plate from deflection in shearing process of bilateral scissors |
| CN104841697B (en) * | 2015-05-15 | 2016-08-24 | 南京钢铁股份有限公司 | Bilateral scissors shear history is automatically prevented from the control method of Plate transferring deviation |
| CN106271828A (en) * | 2016-08-19 | 2017-01-04 | 南京钢铁股份有限公司 | Circle shear shear history is automatically prevented from the control method of Plate transferring deviation |
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