CN102527716B - High-intensity strip steel coil threading method - Google Patents
High-intensity strip steel coil threading method Download PDFInfo
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- CN102527716B CN102527716B CN201210000380.XA CN201210000380A CN102527716B CN 102527716 B CN102527716 B CN 102527716B CN 201210000380 A CN201210000380 A CN 201210000380A CN 102527716 B CN102527716 B CN 102527716B
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Abstract
The invention relates to the field of strip steel rolling and particularly relates to a strip steel coil threading method. The high-intensity strip steel coil threading method comprises the following steps: a first grating at the inlet of a pre-leveler is first opened, and a second grating at the outlet of the pre-leveler, a third grating at the outlet of a finish-leveler, and a fourth grating at the inlet of a pinch roll are closed; the head of the strip steel is led to pass though a threading device manually, is conveyed to the pre-leveler to be straightened, is conveyed to the finish-leveler by a cutting head to be straightened, and then is led to pass through the pinch roll; and then an automatic control device is opened, the second grating, the third grating and the fourth grating are opened in sequence, a normal threading procedure is started, and the head of the strip steel passes through a looping pit and a lateral guide device and then is conveyed to a rolling mill to be rolled. According to the high-intensity strip steel coil threading method provided by the invention, the head of the strip steel is conveyed to the pinch roll manually, and then the automatic control device is started; the method is applicable to high-intensity steel coil with the thickness of more than 2.5 mm; and since the method is adopted, the phenomenon of bounce and unwinding of the steel coil never occurs since the method is adopted, so that the production efficiency is improved.
Description
Technical field
The present invention relates to belt steel rolling field, relate in particular to a kind of band steel coil of strip threading method.
Background technology
Band steel is for convenient transportation all can be rolled into coil of strip before processing, and coil of strip will carry out threading operation entering to produce before line; As shown in Figure 1, flow process before belt steel rolling is, coil of strip is on uncoiler 2 after uncoiling, band steel 1 head first passes through tape threading apparatus 3, then sending into just strong machine 4 aligns, after aligning, send into again the strong machine 6 of essence by crop shears 5 crops and align, and then enter into looping pit 8 by pinch roll 7, finally send into roll mill 10 rollings by lateral guide 9; Existing normal threading is manually will to deliver to steel head behind the porch of just rectifying machine 4, carry out full automatic normal steel band feeding by automaton, the first strong machine 6 of gateway, essence of rectifying machine 4 exports and the entrance of pinch roll 7 is all equipped with grating, and feeding control is carried out in the definite position with steel head of signal that automaton sends by grating; Because uncoiler 2 is shorter to the distance between just strong machine 4 entrances, when feeding, only have tape threading apparatus 3 to push down plate, in the time producing high thickness and high-intensity band steel, tape threading apparatus 3 often cannot be pushed down band steel, easily causes coil of strip bounce-back to scatter in the process of self-feeding.The coil of strip thickness that blanking line can be processed is 0.6 millimeter to 3.5 millimeters, when the coil of strip thickness of producing reaches 3.0mm, yield strength reaches 800MPa, because steel plate thickness is blocked up, yield strength is excessively strong, cause in the time of threading coil of strip easily bounce-back scatter, the coil of strip after scattering generally need be processed about 2 hours, not only lost time but also in processing procedure, also likely caused the injury of personnel and equipment.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high-intensity strip steel coil threading method, and the method is restarted automaton after using and manually steel band head being delivered to pinch roll, has avoided coil of strip bounce-back to scatter to affect and has produced.
The present invention is achieved in that a kind of high-intensity strip steel coil threading method, first opens the 3rd grating of the first strong machine outlet of the second grating, essence of rectifying the first grating of machine entrance and the machine of just rectifying is exported and the 4th grating of pinch roll inlet and closes; Then manually will be with steel head first to pass through tape threading apparatus, then send into just strong machine aligning, after aligning, send into again the strong machine aligning of essence by crop shears crop rear through pinch roll; Then open automaton, open in turn the second grating, the 3rd grating and the 4th grating, finally enter normal threading program, band steel head is sent into rolling in roll mill through looping pit and lateral guide.
High-intensity strip steel coil threading method of the present invention, after manually delivering to pinch roll by steel band head, use restarts automaton, it is 2.5 millimeters of above high-intensity coil of strips that the method is used in thickness, and the coil of strip phenomenon of scattering that rebounds did not occur after certainly bringing into use together, has improved production efficiency; This threading method is equally applicable to 1 millimeter of following more coil of strip of oil surface, the more coil of strip of 1 millimeter of following oil surface is in the time of normal threading, because band steel is only manually delivered to just strong machine porch, when feeding, depend merely on uncoiler in feeding, because surface oil is more, steel plate can skid, normally feeding.After manually steel band being delivered to pinch roll as used, restart after the method for self-threading tape program, in the time of self-threading tape, have the machine of just rectifying, essence is rectified machine and carry out feeding together with pinch roll simultaneously, thereby guarantee to be with the steel can normal feeding.
Accompanying drawing explanation
Fig. 1 is band steel threading system schematic.
In figure: 1 band steel, 2 uncoilers, 3 tape threading apparatus, 4 are just rectified machine, 5 crop shears, the strong machine of 6 essence, 7 pinch rolls, 8 looping pits, 9 lateral guides, 10 roll mills, 11 first gratings, 12 second gratings, 13 the 3rd gratings, 14 the 4th gratings.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's statement, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment
As shown in Figure 1, a kind of high-intensity strip steel coil threading method, first opens first the 3rd grating 13 of rectifying the first grating 11 of machine 4 entrances and the strong machine 6 of the second grating 12, essence that just strong machine 4 exports is exported and the 4th grating 14 of pinch roll 7 entrances and closes; Coil of strip manually will be with steel 1 head first to pass through tape threading apparatus 3 after uncoiler 2 uncoilings, then send into just strong machine 4 and align, and send into the strong machine 6 of essence again align rear through pinch roll 7 after aligning by crop shears 5 crops; Then open automaton, open in turn the second grating 12, the 3rd grating 13 and the 4th grating 14, finally enter normal threading program, band steel 1 head is sent into the interior rolling of roll mill 10 through looping pit 8 and lateral guide 9.
In the process of self-threading tape, each step is responded to by grating, as be not related to black out grid, the grating everywhere of subsequent step will sense the existence with steel in advance, cannot start automaton thereby can cause, must be in the time that manually threading be to pinch roll, then open in turn follow-up grating.
Claims (1)
1. a high-intensity strip steel coil threading method, is characterized in that: first open the 3rd grating of the first strong machine outlet of the second grating, essence of rectifying the first grating of machine entrance and the machine of just rectifying is exported and the 4th grating of pinch roll inlet and close; Then manually will be with steel head first to pass through tape threading apparatus, then send into just strong machine aligning, after aligning, send into again the strong machine aligning of essence by crop shears crop rear through pinch roll; Then open automaton, open in turn the second grating, the 3rd grating and the 4th grating, finally enter normal threading program, band steel head is sent into rolling in roll mill through looping pit and lateral guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210000380.XA CN102527716B (en) | 2012-01-04 | 2012-01-04 | High-intensity strip steel coil threading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210000380.XA CN102527716B (en) | 2012-01-04 | 2012-01-04 | High-intensity strip steel coil threading method |
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| CN102527716A CN102527716A (en) | 2012-07-04 |
| CN102527716B true CN102527716B (en) | 2014-07-09 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212576B (en) * | 2013-03-30 | 2015-05-13 | 马钢(集团)控股有限公司 | Fast threading method for broken strip of withdrawal and straightening machine |
| CN103447310A (en) * | 2013-09-07 | 2013-12-18 | 鞍钢股份有限公司 | Rapid threading control method for five-frame cold-rolling mill |
| CN104128316B (en) * | 2014-06-19 | 2016-05-25 | 中国重型机械研究院股份公司 | The positive substandard products screening installation of a kind of paper-thin strip high speed finishing unit |
| CN104209350A (en) * | 2014-09-18 | 2014-12-17 | 攀钢集团攀枝花钢钒有限公司 | Band steel traction connection structure and band penetration method for continuous band steel unit |
| CN109277409B (en) * | 2018-11-14 | 2024-02-09 | 新余钢铁股份有限公司 | Accurate positioning method and structure for strip head of coiling machine of cold rolling treatment line |
| CN111054753B (en) * | 2019-11-29 | 2021-09-03 | 首钢智新迁安电磁材料有限公司 | Strip steel head threading control method and system |
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