CN101311853B - Method of band steel continuous production unit for reducing front and back band steel welding time - Google Patents
Method of band steel continuous production unit for reducing front and back band steel welding time Download PDFInfo
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- CN101311853B CN101311853B CN2007100409530A CN200710040953A CN101311853B CN 101311853 B CN101311853 B CN 101311853B CN 2007100409530 A CN2007100409530 A CN 2007100409530A CN 200710040953 A CN200710040953 A CN 200710040953A CN 101311853 B CN101311853 B CN 101311853B
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Abstract
The present invention discloses a device which reduces the time for welding front strip steel and back strip steel in a strip steel continuously producing machine set and a method thereof. An entrance section device of the machine set consists of an upper passage, a lower passage and a common section. The upper passage and the lower passage are respectively provided with a speed bus MR2 and the speed bus MR3. The common section is provided with two mutually independent speed buses MR1 and MR4. Synchronous switches are arranged between the speed buses MR2 and MR1 and between the speed buses MR2 and MR4, and the synchronous switches are also arranged between the speed buses MR3 and MR1 and between the speed buses MR3 and MR4. When the head part of the back strip steel enters into the common section, all equipment behind a welding machine at the common section still use the speed bus MR1, and all equipment before the welding machine at the common section are decided by the contact status of the equipment and the strip steel; when the equipment is still contacted with the tail part of the front strip steel, the speed bus MR1 is still used; when the equipment is contacted with the head of the back strip steel, the speed bus MR4 is used. The present invention realizes the synchronous positioning and control of the head and tail parts of the strip steel and forms a small loop of the inlet and the outlet of the welding machine, so as to reduce the total time for welding the front strip steel and the back strip steel and to prevent the head and tail part of the strip steel from overlapping at the common section.
Description
Technical field
The present invention relates to welding technology field in the metallurgical technology, particularly relate to a kind of with the steel continuous-output machine group minimizing front and back band steel method of weld interval.
Background technology
In metallurgical works, extensively exist band steel quantity-produced unit, as cold continuous rolling and cold-rolling treatment unit thereof, as continuous annealing unit, galvanizing unit, electrogalvanizing unit, Electroplating Tin Set or the like.In these units, in order to ensure the process section energy stable speed operation of unit central authorities, all disposed two uncoilers at the unit entrance, the unit entrance is by upper channel, and three sections equipment of lower channel and common segment are formed, as shown in Figure 1.The head of the afterbody of preceding band steel and back band steel welds at common segment welding machine place, and in welding process, unit entrance equipment must be all out of service, and at this moment the required band steel of process section is provided by entry loop.Because entry loop length has certain limitation, so the time of shutdown welding is short more good more.
In the band steel quantity-produced unit of metallurgical works, band steel welding T.T. is that band steel afterbody and head are located, and time and this two part time of shutdown welding of forming the little kink in welding machine entry and exit are formed.Traditional method adopts the one velocity bus, and promptly common segment has only 1 speed bus MR1, so the positioning control of band steel afterbody before can only operating speed bus MR1 during welding carrying out earlier, all devices behind the welding machine quits work behind the young kink when the formation welding machine goes out.And then using identical speed bus MR1, equipment before the startup welding machine and the equipment in upper channel or the lower channel carry out the positioning control of back band steel toe portion.Behind the little kink that has formed the welding machine inlet, upper and lower passage and common segment armamentarium are in halted state, again by the welding of welding machine with steel.This preceding band steel afterbody location of carrying out is earlier carried out the work in series method that back band steel toe portion locatees then, causes total stop time oversize.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind ofly reduces the front and back band steel method of weld interval with steel continuous-output machine group, and it can reduce total weld interval, and can prevent to be with the steel toe tail overlapped in the inlet common segment.
For solving the problems of the technologies described above, band steel continuous-output machine group of the present invention reduces the front and back band steel device of weld interval, and the unit entrance is made up of upper channel, lower channel and three sections equipment of common segment; Speed bus MR2 is set in the upper channel, speed bus MR3 is set in the lower channel, 2 separate speed bus MR1 and MR4 are set in the common segment; Be provided with synchro switch between speed bus MR2 and MR1 and the MR4, also be provided with synchro switch between speed bus MR3 and MR1 and the MR4.
The method that band steel continuous-output machine group of the present invention reduces front and back band steel weld interval is as follows, when back band steel toe portion enters common segment, all devices in this common segment behind the welding machine is operating speed bus MR1 still, equipment in this common segment before the welding machine depends on the situation that equipment contacts with the strip, when also contacting with preceding band steel afterbody, operating speed bus MR1 still, when contacting with back band steel toe portion, operating speed bus MR4 then.
The present invention adopts the speed double bus in the common segment of unit entrance, be applied on the continuous-output machine group that front and back band steel need weld, can form welding machine outlet and the little kink that enters the mouth simultaneously, thereby reduce total weld interval simultaneously with the positioning control of steel toe portion and afterbody like this; Simultaneously also can prevent to be with steel toe tail overlapped problem in the inlet common segment.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and embodiment:
Fig. 1 is common milling train entrance equipment disposition synoptic diagram;
Fig. 2 is a milling train entrance speed bus bar configuration synoptic diagram of the present invention;
Fig. 3 is in the present invention/speed bus when lower channel equipment and common segment separate operation chooses;
Fig. 4 is that the speed bus of band steel toe portion when upper channel enters common segment chosen behind the present invention;
Fig. 5 is that the speed bus of band steel toe portion when lower channel enters common segment chosen behind the present invention;
Fig. 6 is that the speed bus that the present invention welds when finishing is chosen;
Fig. 7 is that the present invention prevents to be with steel toe tail overlaid synoptic diagram in the inlet common segment.
Embodiment
When a plurality of equipment move in groups, in the entrance equipment, equipment operating speed bus MR1 in its common segment or speed bus MR4, its upper channel equipment is operating speed bus MR2 fixedly, and the equipment of lower channel is operating speed bus MR3 fixedly.The entrance equipment layout as shown in Figure 1,4 speed bus structures of entrance are as shown in Figure 2.
Speed bus when upper channel and lower channel equipment and common segment separate operation is chosen (Fig. 3): the common segment all devices operating speed bus MR1 that enters the mouth this moment, the upper channel all devices is just used speed bus MR2, lower channel all devices operating speed bus MR3.Synchro switch between bus disconnects, and the velocity amplitude of 3 speed buses is uncorrelated mutually, and equipment can move under different speed, as shown in Figure 3.Velocity Reference equipment in the wherein upper and lower passage is their pinch roll, and the Velocity Reference equipment of common segment is the S roller.
The speed bus of back band steel toe portion when upper channel enters common segment chosen (Fig. 4): when back band steel toe portion when upper channel enters common segment, all devices in the common segment after the welding machine is operating speed bus MR1 still, but the equipment in the common segment before the welding machine depends on the situation that equipment contacts with the strip, when also contacting with preceding band steel afterbody, operating speed bus MR1 still then, when contacting, then use new speed bus MR4 with back band steel toe portion.The upper channel all devices is operating speed bus MR2 still, but the synchro switch between speed bus MR2 and MR4 is in closure state, the value of speed bus MR2 and MR4 is identical, thereby guarantee with steel toe portion on the equipment before upper channel and the common segment welding machine with identical speed operation, at this moment the velocity amplitude of upper channel equipment is got the value of speed bus MR4.Wherein be in all devices on speed bus MR2 and the MR4, its Velocity Reference equipment is the pinch roll of upper channel, and the Velocity Reference equipment that is in all devices on the speed bus MR1 in the common segment is the S roller, as shown in Figure 4.The speed of lower channel equipment is got speed bus MR3, and it is irrelevant with speed bus MR1, MR2 and MR4, but isolated operation, at this moment its Velocity Reference equipment pinch roll that is lower channel.
The speed bus of back band steel toe portion when lower channel enters common segment chosen (Fig. 5): when back band steel toe portion when lower channel enters common segment, all devices after the common segment welding machine is operating speed bus MR1 still, but the equipment before the common segment welding machine then depends on the situation that equipment contacts with the strip, when also contacting with preceding band steel afterbody, relevant device operating speed bus MR1 still then, when contacting, then use new speed bus MR4 with back band steel toe portion.The lower channel all devices is operating speed bus MR3 still, but the synchro switch between speed bus MR3 and MR4 is in closure state, the value of speed bus MR3 and MR4 is identical, thereby guarantee back band steel toe portion on the equipment before lower channel and the common segment welding machine with identical speed operation, speed is got the value of speed bus MR4.Wherein be in all devices on speed bus MR3 and the MR4, its Velocity Reference equipment is the pinch roll of lower channel, and the equipment medium velocity reference device that is in the common segment on the speed bus MR1 is the S roller, as shown in Figure 5.The speed of upper channel equipment is got speed bus MR2, and it has nothing to do with speed bus MR1, MR3 and MR4, but isolated operation, and at this moment its Velocity Reference equipment is the upper channel pinch roll.
In a word, when having band steel toe, tail simultaneously in common segment, the equipment that is in magnetic tape trailer is in the equipment of taking the lead bus MR4 operation with bus MR1 operation.Because speed bus MR1 and MR4 are separate,, so just can realize being with steel toe portion and afterbody to position work simultaneously so band steel toe tail can move simultaneously with different speed.
The speed bus of welding when finishing chosen (Fig. 6): after welding is finished, and all common segment equipment operating speed bus MR1, Fig. 6 is so that be that example illustrates choosing of bus with the band steel of upper channel.At this moment, the whole operating speed bus of the equipment of common segment MR1, upper channel equipment is operating speed bus MR2 still, but the synchro switch closure between speed bus MR2 and MR1, the value of speed bus MR2 and MR1 is identical, with identical speed operation, thereby the speed of upper channel equipment is got the value of speed bus MR1 to the band steel after guaranteeing to weld on upper channel and common segment all devices, and wherein the reference device of whole speed is the S roller.The speed of lower channel equipment is got speed bus MR3, and it has nothing to do with speed bus MR1, MR2 and MR4, but isolated operation, and at this moment its Velocity Reference equipment is the lower channel pinch roll.
In order to prevent to be with steel toe tail overlaid in the inlet common segment, promptly cause the band steel to scratch and damage equipment in order to avoid being with steel toe, tail on unit, overlapping linking to occur, must the track band steel toe, the position of tail and the steering logic of guaranteeing with existence one determining deviation between the steel toe tail is set.
As shown in Figure 7, when current band steel afterbody left lower channel, all with the capable fortune of MR1 speed bus, wherein the S roller in the common segment was a Velocity Reference equipment to the equipment of whole inlet common segment.Current band steel afterbody enters after the common segment and when leaving the pinch roll of common segment, be installed in the appearance that photocell detection thereafter arrives preceding band steel tail end, this moment, it can trigger band steel lock-on counter at once, it is the amount of spin based on Velocity Reference equipment S roller, the displacement S of band steel tail end before calculating
Tail
In addition, in case preceding band steel tail end leaves this photoelectric tube, the back band steel toe portion of upper channel can enter common segment immediately, and at this moment Xiang Guan equipment operation is on speed bus MR2 and MR4, and speed is got the MR4 value, Velocity Reference equipment is the pinch roll of upper channel, in case when back band steel toe portion passed through this photoelectric tube, it also can trigger another band steel lock-on counter at once, it is with Velocity Reference equipment, the pinch roll amount of spin that is upper channel is the basis, calculates the displacement S of back band steel toe portion
HeadFront and back band steel between end to end apart from △ S is: △ S=S
Tail-S
Head
When △ S ≦ 0, band steel toe portion in expression back is connected mutually with the afterbody of preceding band steel, and must reduce the speed of back band steel this moment, the speed of the bus MR4 that promptly underspeeds, and two band steel can be not overlapping before and after just can guaranteeing.
Claims (2)
1. one kind is reduced the front and back band steel method of weld interval with steel continuous-output machine group, it is characterized in that: by four bus methods, be with steel toe tail location simultaneously:
Unit entrance equipment comprises upper channel equipment, lower channel equipment, common segment equipment, and upper channel equipment is operating speed bus MR2 fixedly, and lower channel equipment is operating speed bus MR3 fixedly; Common segment equipment uses two speed bus MR1 and MR4, equipment operating speed bus MR1 or MR4 before the equipment operating speed bus MR1 after the welding machine, welding machine; Be provided with synchro switch between speed bus MR2 and MR1 and the MR4; Also be provided with synchro switch between speed bus MR3 and MR1 and the MR4; Article four, the speed bus is independently of one another;
The Velocity Reference equipment of described upper channel equipment and lower channel equipment is their pinch roll, and the Velocity Reference equipment of described common segment equipment is the S roller;
When back band steel toe portion enters common segment, the still operating speed bus MR1 work of all devices behind this common segment welding machine, all devices before this common segment welding machine then depends on the situation that equipment contacts with the strip and decides, when also contacting with preceding band steel afterbody, still operating speed bus MR1 work, when contacting with back band steel toe portion, then operating speed bus MR4 work;
If described back band steel toe portion is when upper channel enters common segment, the synchro switch between closing speed bus MR2 and MR4 then, make the value of speed bus MR2 and MR4 identical, thereby the speed that band steel toe portion is moved on all devices before upper channel and the common segment welding machine is identical, this velocity amplitude is got the value of speed bus MR4, when band steel toe portion after having finished positioning control before the welding machine and having formed kink, the synchro switch between opening velocity bus MR2 and MR4 then;
If described back band steel toe portion is when lower channel enters common segment, the synchro switch between closing speed bus MR3 and MR4 then, make the value of speed bus MR3 and MR4 identical, the speed that band steel toe portion is moved on all devices before upper channel and the common segment welding machine is identical, this velocity amplitude is got the value of speed bus MR4, when band steel toe portion after having finished positioning control before the welding machine and having formed kink, the synchro switch between opening velocity bus MR3 and MR4 then;
After the front and back band steel welding is finished, the operating speed bus MR1 of the equipment on all common segment, upper channel equipment operating speed bus MR2, lower channel equipment operating speed bus MR3;
If this moment, the band steel that uses was the coil of strip of upper channel, then the synchro switch between closing speed bus MR2 and MR1 makes the value of speed bus MR2 and MR1 identical, and the speed that the band steel after the welding is moved on upper channel and common segment all devices is identical;
If this moment, the band steel that uses was the coil of strip of lower channel, then the synchro switch between closing speed bus MR3 and MR1 makes the value of speed bus MR3 and MR1 identical, and the speed that the band steel after the welding is moved on lower channel and common segment all devices is identical.
2. band steel continuous-output machine group as claimed in claim 1 reduces the front and back band steel method of weld interval, it is characterized in that:
When current band steel afterbody leaves pinch roll in the common segment, and photocell detection triggers band steel lock-on counter this moment to the appearance of preceding band steel tail end, the displacement S of band steel tail end before calculating
TailWhen back band steel toe portion enters common segment and passes through described photoelectric tube, trigger another band steel lock-on counter simultaneously, calculate the displacement S of back band steel toe portion
Head
Front and back band steel end to end between distance, delta S then be: Δ S=S
Tail-S
Head,
Δ S≤0 o'clock, band steel toe portion in expression back is connected mutually with the afterbody of preceding band steel, needs to reduce the speed of back band steel, and two band steel can be not overlapping before and after guaranteeing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100409530A CN101311853B (en) | 2007-05-21 | 2007-05-21 | Method of band steel continuous production unit for reducing front and back band steel welding time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100409530A CN101311853B (en) | 2007-05-21 | 2007-05-21 | Method of band steel continuous production unit for reducing front and back band steel welding time |
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| Publication Number | Publication Date |
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| CN101311853A CN101311853A (en) | 2008-11-26 |
| CN101311853B true CN101311853B (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100409530A Active CN101311853B (en) | 2007-05-21 | 2007-05-21 | Method of band steel continuous production unit for reducing front and back band steel welding time |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107097021B (en) * | 2016-02-19 | 2019-02-05 | 宝山钢铁股份有限公司 | The control method of welding machine strip parallel setting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168302A (en) * | 1996-03-15 | 1997-12-24 | 丹尼利机械设备股份公司 | Method for continuous rolling of plate and/or strip and relative continuous rolling line |
| US5871138A (en) * | 1995-07-10 | 1999-02-16 | Kawasaki Steel Corporation | Method and apparatus for continuous finishing hot-rolling a steel strip |
| CN1287030A (en) * | 1999-06-30 | 2001-03-14 | 国际技术公司及国际技术公开有限公司 | Method and equipment for rolling continuous billet from billet heating furnace of mill train advanced position |
| US6453709B2 (en) * | 2000-04-21 | 2002-09-24 | Vai Clecim | Cold rolling method and installation |
| CN1456397A (en) * | 2002-05-08 | 2003-11-19 | 摩根建设公司 | Continuous rolling process for bar or strip-type products |
-
2007
- 2007-05-21 CN CN2007100409530A patent/CN101311853B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5871138A (en) * | 1995-07-10 | 1999-02-16 | Kawasaki Steel Corporation | Method and apparatus for continuous finishing hot-rolling a steel strip |
| CN1168302A (en) * | 1996-03-15 | 1997-12-24 | 丹尼利机械设备股份公司 | Method for continuous rolling of plate and/or strip and relative continuous rolling line |
| CN1287030A (en) * | 1999-06-30 | 2001-03-14 | 国际技术公司及国际技术公开有限公司 | Method and equipment for rolling continuous billet from billet heating furnace of mill train advanced position |
| US6453709B2 (en) * | 2000-04-21 | 2002-09-24 | Vai Clecim | Cold rolling method and installation |
| CN1456397A (en) * | 2002-05-08 | 2003-11-19 | 摩根建设公司 | Continuous rolling process for bar or strip-type products |
Non-Patent Citations (1)
| Title |
|---|
| 吴文彬,潘刚,赵会平,徐心和.动态变规格技术在冷轧过程中的应用研究.2003中国钢铁会议论文.2003,(2003),68-72. * |
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| CN101311853A (en) | 2008-11-26 |
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