CN201900244U - Roll gap calibrating system for square billet continuous casting withdrawing and straightening machine - Google Patents

Roll gap calibrating system for square billet continuous casting withdrawing and straightening machine Download PDF

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Publication number
CN201900244U
CN201900244U CN2010206849387U CN201020684938U CN201900244U CN 201900244 U CN201900244 U CN 201900244U CN 2010206849387 U CN2010206849387 U CN 2010206849387U CN 201020684938 U CN201020684938 U CN 201020684938U CN 201900244 U CN201900244 U CN 201900244U
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CN
China
Prior art keywords
straightening
roll gap
continuous casting
chain link
roll
Prior art date
Application number
CN2010206849387U
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Chinese (zh)
Inventor
和刚
李小勇
雍新刚
费纪顺
张志勇
Original Assignee
攀钢集团钢铁钒钛股份有限公司
攀钢集团攀枝花钢钒有限公司
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Priority to CN2010206849387U priority Critical patent/CN201900244U/en
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Publication of CN201900244U publication Critical patent/CN201900244U/en

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Abstract

The utility model relates to the field of continuous casting and provides a roll gap calibrating system for a square billet continuous casting withdrawing and straightening machine. At least one chain link in various links of a dummy bar is a standard chain link, wherein the top surface and the bottom surface of the standard chain link are mutually-parallel planes; the thickness of the standard chain link between the bottom surface and the top surface is consistent with the width of the standard roll gap; the roll gap calibrating system is provided with withdrawing and straightening roll position sensors which respectively correspond to all withdrawing and straightening rolls; and each withdrawing and straightening roll position sensor is connected with a withdrawing and straightening roll rolling reduction control system. The compensation value of the withdrawing and straightening roll sensor in the width of the standard roll gap can be solved by the standard chain link; and the withdrawing and straightening roll rolling reduction control system can be used for controlling the position (that is to say, the width of the roll gap) of the withdrawing and straightening roll according to the detection value and the compensation value of the withdrawing and straightening roll sensor, has high control precision, high automatic degree and favorable reliability and can meet the requirement of soft reduction implementation. The roll gap calibrating system is suitable for various continuous casting production lines and particular to the continuous casting production line for implementing the soft reduction.

Description

The roll gap calibration system that is used for billet continuous casting straightening machine

Technical field

The utility model relates to the continuous casting field, especially a kind of roll gap calibration system that is used for billet continuous casting straightening machine.

Background technology

Open when watering at billet continuous casting, strand need draw by dummy bar head and dummy bar.Concrete, open water before, by sending dummy ingot mechanism dummy bar head and dummy bar are sent into, dummy bar head is blocked the crystallizer end opening, forms the base head so that the molten steel of casting has time enough to solidify; Dummy bar is positioned at roller-way, and the base capitiform becomes the back by dummy bar pulling dummy bar head, and what strand was continuous pulls out from crystallizer, is bitten by the straightening machine until strand.Dummy bar is generally the bend in one direction chain structure that is joined end to end and constituted by chain link.

In addition, generally need in the existing billet continuous casting to implement gently to depress, will well implement light press function having on the casting machine of gently depressing, except relevant device intact, outside model calculated correctly, the accurate detection of straightening machine gap values between rollers and demarcation also played important effect.The detection of general gap values between rollers is all adopted manually with slide measure or direct or indirect the detecting of micrometer, each straightening machine gap values between rollers deviation as a result of Jian Ceing is very big like this, often the gap values between rollers deviation is greater than 0.5 millimeter, and when implementing gently to depress, the drafts of every straightening machine generally is no more than 2 millimeters, like this, because straightening machine gap values between rollers deviation is very big, cause light press function not give full play to, influence slab quality.

The utility model content

Technical problem to be solved in the utility model provides a kind of control accuracy height, can satisfy and gently depress the roll gap calibration system that is used for billet continuous casting straightening machine that implements requirement.

The technical scheme that its technical problem that solves the utility model adopts is: the roll gap calibration system that is used for billet continuous casting straightening machine, comprise the dummy bar that constitutes by chain link, send dummy ingot mechanism and send amount control system under the straightening roll-in of dummy ingot control system, straightening machine, described dummy bar is that head, the other end are afterbody near an end of dummy bar head, at least one chain link is a standard link in each chain link of described dummy bar, the end face of described standard link and bottom surface are the plane that is parallel to each other, and the standard link thickness between bottom surface and the end face is consistent with standard roll gap width; Be provided with corresponding with each straightening roller respectively straightening roller position sensor, each straightening roller position sensor links to each other with amount control system under the straightening roll-in respectively.

Comprise the accurate chain link of a feast-brand mark in each chain link of described dummy bar head, be provided with the dummy bar tracing-positioning system, described tracing-positioning system respectively with the straightening roll-in under amount control system with send the dummy ingot control system to link to each other.

The surface roughness of described standard link bottom surface, end face all reaches 0.1 grade, thickness deviation between the two all less than 0.1mm.

Described dummy bar tracing-positioning system comprises location chain link and video navigation system, the side side that described location chain link is relative with the video navigation system is provided with telltale mark, described video navigation system respectively with the straightening roll-in under amount control system with send the dummy ingot control system to link to each other.

Described video navigation system is an infrared scale system.

Described telltale mark is a reflective surface.

The beneficial effects of the utility model are: before billet continuous casting is opened and watered, by roll gap calibration of the present utility model system the straightening roller that needs calibration rollers and meet is carried out roll gap calibration, concrete, the straightening roller of at first selecting to need to demarcate is numbered, start roll gap calibration of the present utility model system, load dummy bar and standard link is delivered to the straightening roller position that needs are demarcated, by amount control system under the straightening roll-in make the straightening roller respectively with the end face of standard link, the bottom surface contacts, form offset by the detected value of straightening roller position sensor and the contrast of standard link thickness then, also be that roll gap width control according to the detected value and the offset of straightening roller position sensor to straightening roller position by amount control system under the straightening roll-in at last, so control accuracy height, the automaticity height, good reliability can satisfy the requirement of gently depressing enforcement.Standard link required precision height, so cost of manufacture height in order to reduce cost, only are provided with a standard link, in order to guarantee that the standard link track and localization is provided with tracing-positioning system.

Description of drawings

Fig. 1 is a layout schematic diagram of the present utility model;

Fig. 2 is the structural representation of the utility model standard link;

Fig. 3 is the structural representation of the utility model location chain link.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As Fig. 1, Fig. 2, shown in Figure 3, the roll gap calibration system that is used for billet continuous casting straightening machine of the present utility model, comprise the dummy bar 1 that constitutes by chain link, send dummy ingot mechanism and send the dummy ingot control system, the straightening roller 2 drafts control systems of straightening machine, described dummy bar 1 is a head near an end of dummy bar head 14, the other end is an afterbody, at least one chain link is a standard link 12 in each chain link of described dummy bar 1, the end face 12a of described standard link 12 and bottom surface 12b are the plane that is parallel to each other, and standard link 12 thickness between bottom surface 12b and the end face 12a are consistent with standard roll gap width; Be provided with respectively the straightening roller position sensor corresponding with each straightening roller 2, each straightening roller position sensor links to each other with amount control system under the straightening roll-in respectively.

Before billet continuous casting is opened and is watered, by roll gap calibration of the present utility model system the straightening roller that needs calibration rollers and meet is carried out roll gap calibration, concrete, the straightening roller of at first selecting to need to demarcate 2 is numbered, start roll gap calibration of the present utility model system, load dummy bar 1 and standard link 12 is delivered to straightening roller 2 positions that needs are demarcated, by amount control system under the straightening roll-in make straightening roller 2 respectively with the end face 12a of standard link 12, bottom surface 12b contacts, form offset by the detected value of straightening roller position sensor and the contrast of standard link 12 thickness then, also be that roll gap width control according to the detected value and the offset of straightening roller position sensor to straightening roller 2 positions by amount control system under the straightening roll-in at last, so control accuracy height, the automaticity height, good reliability can satisfy the requirement of gently depressing enforcement.So-called standard roll gap width also promptly is set in a certain roll gap width that is used to try to achieve offset in the system, for convenience of calculation, and the roll gap width when preferably standard roll gap width is set to straightening roller position sensor detected value and is zero.

All dummy bars 1 chain link all can be set to standard link 12, but standard link 12 required precision height, so cost of manufacture height, in order to reduce cost, comprise the accurate chain link 12 of a feast-brand mark in each chain link of described dummy bar 1 head, be provided with the dummy bar tracing-positioning system, described tracing-positioning system respectively with the straightening roll-in under amount control system with send the dummy ingot control system to link to each other.By amount control system under tracing-positioning system, the straightening roll-in, send cooperation between the dummy ingot control system to realize acquisition one by one to each straightening roller 2 compensation rate.It is in order to guarantee that standard link 12 can be through all straightening roller 2 that standard link 12 is arranged at dummy bar 1 head, and then guarantees the acquisition to all straightening roller 2 compensation rates.Concrete, in example as shown in the figure, comprising 22 chain links altogether, described standard link 12 is head the 6th joint.

For the cost of manufacture of control criterion chain link when guaranteeing precision, the surface roughness of described standard link 12 bottom surface 12b, end face 12a all reaches 0.1 grade, thickness deviation between the two all less than 0.1mm.

Above-mentioned tracing-positioning system can adopt the existing positioning control system of sending dummy ingot mechanism, it carries out the position by dummy bar 1 that the pulsimeter of the roller roller rotation number of turns is got it right and follows the tracks of, but because site environment temperature height, the problem of losing takes place to follow the tracks of in electronic component fault rate height, flimsy problems such as pulser easily.Therefore, best, described dummy bar tracing-positioning system comprises location chain link 13 and video navigation system, chain link 13 side sides relative with the video navigation system in described location are provided with telltale mark, described video navigation system respectively with the straightening roll-in under amount control system with send the dummy ingot control system to link to each other.The video navigation system obtains image scene by camera head, by video identification software location chain link 13 is discerned then, and the position of the location chain link 13 that further will discern and the coordinate of system prediction compare, final realization also is the track and localization of dummy bar 1 position to location chain link 13, and finally realizes the correspondence of standard link 12 and straightening roller 2 to be calibrated.Since the contactless location of video positioning system using, so the site environment temperature is little to its influence, thus can guarantee positioning accuracy, guarantee to send the carrying out of dummy ingot operation and roll gap calibration operation.

Further, described video navigation system is an infrared scale system 3.Usually be provided with infrared scale system in the continuous casting cut length to the strand scale, therefore adopt infrared scale system can further reduce the equipment input, reduce implementation cost, in order to be applicable to the infrared scale system 3 of cut length, in enforcement as described in Figure, being located by connecting 13 is joints third from the bottom.

Described telltale mark is according to the difference of video navigation system and difference can be a spider etc., and concrete, described telltale mark is reflective surface 13a.In example as described in Figure, reflective surface 13a is by sanding and polishing and brush reflectorised paint formation.

In example as described in Figure, other chain links except that standard link 12, location chain link 13 all adopt existing regular link 11.

Claims (6)

1. the roll gap calibration system that is used for billet continuous casting straightening machine, comprise the dummy bar (1) that constitutes by chain link, send dummy ingot mechanism and send the dummy ingot control system, straightening roller (2) the drafts control system of straightening machine, described dummy bar (1) is a head near an end of dummy bar head (14), the other end is an afterbody, it is characterized in that: at least one chain link is standard link (12) in each chain link of described dummy bar (1), the end face (12a) of described standard link (12) and bottom surface (12b) plane for being parallel to each other, and standard link (12) thickness between bottom surface (12b) and the end face (12a) is consistent with standard roll gap width; Be provided with corresponding with each straightening roller (2) respectively straightening roller position sensor, each straightening roller position sensor links to each other with amount control system under the straightening roll-in respectively.
2. the roll gap calibration system that is used for billet continuous casting straightening machine as claimed in claim 1, it is characterized in that: comprise the accurate chain link of a feast-brand mark (12) in each chain link of described dummy bar (1) head, be provided with the dummy bar tracing-positioning system, described tracing-positioning system respectively with the straightening roll-in under amount control system with send the dummy ingot control system to link to each other.
3. the roll gap calibration system that is incorporated in billet continuous casting straightening machine as claimed in claim 1 or 2 is characterized in that: the surface roughness of described standard link (12) bottom surface (12b), end face (12a) all reaches 0.1 grade, thickness deviation between the two all less than 0.1mm.
4. the roll gap calibration system that is used for billet continuous casting straightening machine as claimed in claim 2, it is characterized in that: described dummy bar tracing-positioning system comprises location chain link (13) and video navigation system, the side side that described location chain link (13) is relative with the video navigation system is provided with telltale mark, described video navigation system respectively with the straightening roll-in under amount control system with send the dummy ingot control system to link to each other.
5. the roll gap calibration system that is used for billet continuous casting straightening machine as claimed in claim 4 is characterized in that: described video navigation system is an infrared scale system (3).
6. as claim 4 or the 5 described roll gap calibration systems that are used for billet continuous casting straightening machine, it is characterized in that: described telltale mark is reflective surface (13a).
CN2010206849387U 2010-12-28 2010-12-28 Roll gap calibrating system for square billet continuous casting withdrawing and straightening machine CN201900244U (en)

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CN2010206849387U CN201900244U (en) 2010-12-28 2010-12-28 Roll gap calibrating system for square billet continuous casting withdrawing and straightening machine

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Application Number Priority Date Filing Date Title
CN2010206849387U CN201900244U (en) 2010-12-28 2010-12-28 Roll gap calibrating system for square billet continuous casting withdrawing and straightening machine

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825235A (en) * 2012-09-26 2012-12-19 石家庄华海冶金科技有限公司 Continuous-casting flexible dummy bar control method without utilizing encoder
CN103978174A (en) * 2014-05-29 2014-08-13 中冶连铸技术工程有限责任公司 Square billet withdrawal and straightening machine displacement sensor automatic calibration system and method
CN104416135A (en) * 2013-08-30 2015-03-18 宝山钢铁股份有限公司 Roll gap calibration method for lightly pressing down tension leveler in square billet continuous casting
CN104624999A (en) * 2014-11-27 2015-05-20 中冶连铸技术工程有限责任公司 Roll gap calibration device and method for square billet tension leveler
CN104972086A (en) * 2015-06-25 2015-10-14 中冶连铸技术工程有限责任公司 Detecting method and device for withdrawal and straightening machine
CN105772669A (en) * 2016-03-09 2016-07-20 中国重型机械研究院股份公司 On-line automatic calibration method for roller seam of withdrawal strengthening machine of billet continuous casting machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825235A (en) * 2012-09-26 2012-12-19 石家庄华海冶金科技有限公司 Continuous-casting flexible dummy bar control method without utilizing encoder
CN102825235B (en) * 2012-09-26 2014-05-07 石家庄华海冶金科技有限公司 Continuous-casting flexible dummy bar control method without utilizing encoder
CN104416135A (en) * 2013-08-30 2015-03-18 宝山钢铁股份有限公司 Roll gap calibration method for lightly pressing down tension leveler in square billet continuous casting
CN103978174A (en) * 2014-05-29 2014-08-13 中冶连铸技术工程有限责任公司 Square billet withdrawal and straightening machine displacement sensor automatic calibration system and method
CN103978174B (en) * 2014-05-29 2017-01-25 中冶连铸技术工程有限责任公司 Square billet withdrawal and straightening machine displacement sensor automatic calibration system and method
CN104624999A (en) * 2014-11-27 2015-05-20 中冶连铸技术工程有限责任公司 Roll gap calibration device and method for square billet tension leveler
CN104972086A (en) * 2015-06-25 2015-10-14 中冶连铸技术工程有限责任公司 Detecting method and device for withdrawal and straightening machine
CN104972086B (en) * 2015-06-25 2017-03-29 中冶连铸技术工程有限责任公司 Withdrawal straightening machine detection method and device
CN105772669A (en) * 2016-03-09 2016-07-20 中国重型机械研究院股份公司 On-line automatic calibration method for roller seam of withdrawal strengthening machine of billet continuous casting machine

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110720

Termination date: 20161228