CN204135453U - A kind of bar flying shear control device - Google Patents
A kind of bar flying shear control device Download PDFInfo
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- CN204135453U CN204135453U CN201420398469.0U CN201420398469U CN204135453U CN 204135453 U CN204135453 U CN 204135453U CN 201420398469 U CN201420398469 U CN 201420398469U CN 204135453 U CN204135453 U CN 204135453U
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- control device
- encoder
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- finished frame
- frequency converter
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Abstract
The utility model discloses a kind of bar flying shear control device, comprise finished frame (1), Double Dimension Flying Shears (2), encoder (3), control device (4), described finished frame (1) is provided with the frequency converter (11) be electrically connected with its spindle motor, described encoder (3) is coaxially connected rotation with finished frame (1) spindle motor, described control device (4) and frequency converter (11), Double Dimension Flying Shears (2) and encoder (3) signal connect, the rear end of described Double Dimension Flying Shears (2) is also provided with the picking sensor (5) corresponding with bar path, described picking sensor (5) is connected with control device (4) signal.With current value, the utility model, by control device and frequency converter, encoder and picking sensor communication, judges that bar state replaces tradition heat inspection signal; Change heat inspection device before Double Dimension Flying Shears into picking sensor, solve Double Dimension Flying Shears signal not good cause do not cut, leak and cut the problem wrong with multiple lengths.
Description
Technical field
The utility model belongs to metallurgical automation technology field, is specifically related to that a kind of structure is simple, working stability is reliable, maintenance cost is low, the bar flying shear control device of less energy consumption.
Background technology
Double Dimension Flying Shears is used for the multiple length disjunction of rolled steel bar product, it is the throat of production line of bar, be combined closely with rod material production technology, whether its performance is excellent, and running the whether reliable operating rate on whole production line and product recovery rate has vital impact.At present, hot rolled rod technique adopts and wears water rolling new technology, and Double Dimension Flying Shears is in the larger adverse circumstances of metallurgical production line dust, steam, and therefore fault rate is higher, and main cause has following several: one is without detection signal, and flying shear is not cut; Two is that detection signal shifts to an earlier date or postpones to arrive, and multiple lengths is wrong; Three is that detection signal has flash in mistake steel process, and flying shear leaks to be cut.Once there is above-mentioned situation, bar just can not go up cold bed, causes the security incident of waste product and steel drift cold bed, not only affects production direct motion and also brings great potential safety hazard.At present, domestic relevant industries are used for the main method of Double Dimension Flying Shears signal detection: each installation thermometal detecting element before finished frame outlet and Double Dimension Flying Shears, judge to have bar to occur and the speed encoder coordinating roller mill main axle to arrange realizes bar speed measuring function.Because production line environment is severe, dust causes greatly hot metal detector observation window contamination and plugging, particularly after the applying of Water cooling technique, middle night shift finished frame fills the air to Double Dimension Flying Shears region water smoke, even occur during cooling section serious wear that cooling water pours in down a chimney, there is the situation of hot metal detector Chang Liang, detection signal is good and cause and do not cut, leak and to cut and mistake cuts problem thus, be difficult to the high reliability request meeting the severe production line of bar of operating mode, directly have influence on the person, the safety of equipment and carrying out smoothly of production.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, working stability is reliable, maintenance cost is low, the bar flying shear control device of less energy consumption.
The purpose of this utility model realizes like this, comprise finished frame, Double Dimension Flying Shears, encoder, control device, described finished frame is provided with the frequency converter be electrically connected with its spindle motor, described encoder is coaxially connected rotation with finished frame spindle motor, described control device is connected with frequency converter, Double Dimension Flying Shears and code device signal, the rear end of described Double Dimension Flying Shears is also provided with the picking sensor corresponding with bar path, and described picking sensor is connected with control device signal.
The utility model leads to signal between the signal output part of the input of flying shear control device frequency converter corresponding to finished frame spindle motor and connects, the current value of corresponding finished frame motor is read, in control device, finished frame " steely " or " throwing steel " are judged to curent change, detect to replace traditional heat sensor, thus compare minimizing checkout gear, reduce spare part and the maintenance cost of corresponding checkout gear thereupon, improve the reliability of control method; By easily stained before Double Dimension Flying Shears in prior art and lost efficacy hot metal detector change light curtain detector into, particularly move to the Double Dimension Flying Shears rear end that operating mode is relatively good, thorough solution flying shear detection signal is not good cause do not cut, leak and cut the problem wrong with multiple lengths, and saving the axial flow blower or compressed air that use for avoiding dust water smoke to disturb in prior art, reducing energy resource consumption.
Accompanying drawing explanation
Fig. 1 is prior art control device structural representation;
Fig. 2 is one of the utility model structural representation;
In figure: 1-finished frame, 11-frequency converter, 2-Double Dimension Flying Shears, 4-control device, 41-input unit, 5-picking sensor, 6-bar, 7-Water cooling section, 8-holding wire, 9-hot metal detector.
Detailed description of the invention
Be further described the utility model below in conjunction with accompanying drawing, but must not be limited the utility model by any way, any change done based on the utility model training centre or improvement, all belong to protection domain of the present utility model.
As shown in Figure 2, the utility model comprises finished frame 1, Double Dimension Flying Shears 2, encoder 3, control device 4, described finished frame 1 is provided with the frequency converter 11 be electrically connected with its spindle motor, described encoder 3 is coaxially connected rotation with finished frame 1 spindle motor, described control device 4 is connected with frequency converter 11, Double Dimension Flying Shears 2 and encoder 3 signal, the rear end of described Double Dimension Flying Shears 2 is also provided with the picking sensor 5 corresponding with bar path, and described picking sensor 5 is connected with control device 4 signal.
Described control device 4 signal input part is connected with frequency converter 11 current value output end signal.
Described frequency converter 11 is by PROFIBUS bus and control device 4 communication.
Described control device 4 frequency converter 11 corresponding to the spindle motor of one or more finished frame 1 and encoder 3 signal connect.
Described control device 4 is provided with the input unit 41 communicating with connection.
Described control device 4 is main rolling line PLC and/or flying shear PLC.
Described input unit 41 is touch control flow.
Described picking sensor 5 is correlation picking sensor.
utility model works principle and the course of work:
Control device of the present utility model judges to detect that workpiece front end occurs by the corresponding inverter current signal of spindle motor reading finished frame, or by read picking sensor signal determining detect occur in the middle part of rolled piece time, start to calculate umber of pulse, pulse is sent by speed encoder on finished frame rolling mill main motor axle, often turning N number of pulse, calculating umber of pulse corresponding to multiple length, when reaching this value by control device, flying shear electric motor starting, starts to shear.The in-situ control that flying shear braking is demarcated by proximity switch and flying shear encoder.Parking order is sent when having sheared moment proximity switch/encoder original position, motor control assembly provides the anti-creepage stream of braking, and (this current value is adjustable, be convenient to cutting edge can not walk far cause secondary shearing or continuous shear stress), cutting edge application position is determined during debugging, instead climb from application position, the anti-home position climbing extreme position and cutting edge setting is determined by axle head photoelectric encoder counting after flying shear mair motor, time from counter climbing to the umber of pulse set, encoder signals is by motor stalls, flying shear completes a shear action program, wait for and shearing next time.Standby chi length can be converted into umber of pulse (deduction mechanical hysteresis and the electric lag time that on finished frame rolling mill main motor axle, rotary encoder sends, first multiple length also should deduct finished product frame to flying shear centre distance), the relation between umber of pulse and length: working roll footpath D during big roller footpath most with finished frame
kfor benchmark, roller rotational 1 encloses, and girth is π D
k, corresponding umber of pulse is k × N=kN(k is finished product frame transmission speed ratio, and N is the umber of pulse that encoder turns 1 circle and sends).The umber of pulse that 1mm length of rolled piece is corresponding should be kN/ (π D
k), control device calculates corresponding umber of pulse automatically.
First by input unit, sheared blank length L, " empty cross " shelf number, corresponding finished frame are set in PLC system equal controller number to light curtain distance L
n, corresponding finished frame drive motors rolling current coefficient β, corresponding finished frame working roll footpath D
koften umber of pulse N is turned with drive motors encoder.Then, PLC system judges finished frame, with 18 rolling mill configurations, only has 14 framves, 16 framves and 18 framves can be example as the Bar Rolling Line of finished frame: if 16 framves, 18 framves are selected as " sky is crossed " frame, then judge that 14 framves are finished frame; If 18 framves are selected as " empty " frame, then judge that 16 framves are finished frame; If 18 framves are not selected as " empty " frame, then 18 framves are finished frame.Secondly, by the communication packet between PLC system frequency converter corresponding to finished frame spindle motor and encoder, by the finished frame current value I chosen
feedbackwith umber of pulse N
sread.Meanwhile, PLC system is connected with the signal of the light interlude being arranged at Double Dimension Flying Shears rear end, obtains light curtain signal.Finally, PLC system judges according to acquisition signal, works as I
feedbackduring>=15%Ie (corresponding finished frame drive motors rolling current coefficient β can adjust according to each rolling electric machine rolling performance, and the present embodiment selects 15%), judge that finished product frame " stings steel "; As I feedback≤15%Ie, judge finished product frame " throwing steel ".
" steely " (namely stinging steel) signal that the utility model control device gathers replaces finish rolling of the prior art to export heat inspection signal; Hot metal detector before Double Dimension Flying Shears is moved to Double Dimension Flying Shears rear end, and substitutes with correlation light curtain detector, effectively resist steam, fog to the impact of this hot metal detector.When finished frame " steely " signal rising edge arrives, PLC system judges bar " head appearance ", starts to calculate the bar length by Double Dimension Flying Shears; After Double Dimension Flying Shears, light curtain rising edge arrives subsequently, judges bar " middle part appearance ", and reset " head appearance " signal simultaneously; Then finished frame " steely " signal trailing edge arrives, and judges bar " afterbody appearance ", and reset " middle part appearance " signal simultaneously; Finished frame selection function is set in the touch-screen of PLC system input unit, by Profibus and PLC communication, the distance of rear light curtain to finished frame and Double Dimension Flying Shears cutting edge will be cut, deliver to assigned address in PLC control program to participate in calculating, the mill speed of bar just equals finished frame to the time of distance divided by bar " head appearance " of cutting rear light dusk; Finally, by the length of the multiple length of setting divided by bar length corresponding to each unit pulse, just can converse triggering when Double Dimension Flying Shears counts to how many pulses and cut partial application.
The utility model realizes communication by being connected between control device with finished frame spindle motor frequency converter, the heat inspection signal of finish rolling entrance in prior art is replaced with " steely " signal of finished frame, thus reduce by a checkout gear, reduce spare part and the maintenance cost of corresponding checkout gear, whole checkout gear is more reliable and more stable thereupon; Arrange input unit at the control device of Double Dimension Flying Shears further, the finished frame corresponding to the different finished frames selected, to the distance of cutting rear end heat inspection, delivers to the assigned address in control device, and then participates in bar position, velocity estimated; By easily stained before Double Dimension Flying Shears in prior art and lost efficacy hot metal detector change light curtain detector into, and move to the relatively good Double Dimension Flying Shears rear end of operating mode, thorough solution flying shear detection signal is not good cause do not cut, leak and cut the problem wrong with multiple lengths, and saving the axial flow blower or compressed air that use for avoiding dust water smoke to disturb in prior art, reducing energy resource consumption.
Claims (6)
1. a bar flying shear control device, comprise finished frame (1), Double Dimension Flying Shears (2), encoder (3), control device (4), it is characterized in that described finished frame (1) is provided with the frequency converter (11) be electrically connected with its spindle motor, described encoder (3) is coaxially connected rotation with finished frame (1) spindle motor, described control device (4) and frequency converter (11), Double Dimension Flying Shears (2) and encoder (3) signal connect, the rear end of described Double Dimension Flying Shears (2) is also provided with the picking sensor (5) corresponding with bar path, described picking sensor (5) is connected with control device (4) signal.
2. device according to claim 1, is characterized in that described control device (4) signal input part is connected with frequency converter (11) current value output end signal.
3. device according to claim 1 and 2, is characterized in that described frequency converter (11) is by PROFIBUS bus and control device (4) communication.
4. device according to claim 1 and 2, is characterized in that the corresponding frequency converter of spindle motor (11) of described control device (4) and one or more finished frame (1) and encoder (3) signal connect.
5. device according to claim 1, is characterized in that described control device (4) is provided with the input unit (41) communicating with connection.
6. device according to claim 1, is characterized in that described control device (4) is main rolling line PLC and/or flying shear PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398469.0U CN204135453U (en) | 2014-07-18 | 2014-07-18 | A kind of bar flying shear control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398469.0U CN204135453U (en) | 2014-07-18 | 2014-07-18 | A kind of bar flying shear control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204135453U true CN204135453U (en) | 2015-02-04 |
Family
ID=52412171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420398469.0U Withdrawn - After Issue CN204135453U (en) | 2014-07-18 | 2014-07-18 | A kind of bar flying shear control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204135453U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139210A (en) * | 2014-07-18 | 2014-11-12 | 武钢集团昆明钢铁股份有限公司 | Rod double-length flying shear control method and device |
| CN109365541A (en) * | 2018-09-13 | 2019-02-22 | 北京金自天正智能控制股份有限公司 | The control method for fully automatic of steel area equipment on a kind of high-speed bar mill production line high-speed |
| CN113500101A (en) * | 2021-06-22 | 2021-10-15 | 山东莱钢永锋钢铁有限公司 | High-precision shearing control system for multi-length shear |
-
2014
- 2014-07-18 CN CN201420398469.0U patent/CN204135453U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139210A (en) * | 2014-07-18 | 2014-11-12 | 武钢集团昆明钢铁股份有限公司 | Rod double-length flying shear control method and device |
| CN104139210B (en) * | 2014-07-18 | 2016-05-11 | 武钢集团昆明钢铁股份有限公司 | A kind of bar flying shear control method and device thereof |
| CN109365541A (en) * | 2018-09-13 | 2019-02-22 | 北京金自天正智能控制股份有限公司 | The control method for fully automatic of steel area equipment on a kind of high-speed bar mill production line high-speed |
| CN113500101A (en) * | 2021-06-22 | 2021-10-15 | 山东莱钢永锋钢铁有限公司 | High-precision shearing control system for multi-length shear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150204 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |