CN107097021A - The control method of welding machine strip parallel setting device - Google Patents
The control method of welding machine strip parallel setting device Download PDFInfo
- Publication number
- CN107097021A CN107097021A CN201610093945.1A CN201610093945A CN107097021A CN 107097021 A CN107097021 A CN 107097021A CN 201610093945 A CN201610093945 A CN 201610093945A CN 107097021 A CN107097021 A CN 107097021A
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- Prior art keywords
- welding machine
- setting device
- small
- parallel setting
- strip
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/16—Bands or sheets of indefinite length
Abstract
The invention discloses a kind of control method of welding machine strip parallel setting device, including small loop control method：Welding machine sends the making small kink order of upper channel to unit；Small kink is made, and monitors the Production Time of the small kink of unit；Confirm that the small kink amount of strip is more than 500mm；Small kink is completed to make；If small kink is completed in the given time, welding machine no longer sends the vertical motion order of small loop back roll, and otherwise welding machine sends the rising order of small loop back roll, and alarms；The small loop back roll of entrance declines；The small loop back roll of entrance declines in place.The control method of the welding machine strip parallel setting device of the present invention can provide good strip steel weld joint for unit, and reduce the machine halt trouble of unit.
Description
Technical field
The present invention relates to production control method, more specifically to a kind of parallel adjustment of welding machine strip
The control method of device.
Background technology
As shown in figure 1, existing continuous galvanizing line welder equipment includes entrance lower channel and outlet three
Set strip parallel setting device [a pair of parallel adjusting apparatus (abbreviation P.A.D) is often cased with, it is each parallel
The structure of adjusting apparatus is as shown in Figure 6], entry/exit mouthful clamp, entry/exit mouthful pinch roll and welding machine body etc.
Equipment is constituted, and according to processing flow sequence, is respectively successively from front to back：Outlet looping 1, outlet
Second strip parallel setting device 2, outlet pinch roll 3, width notcher 4, the parallel tune of the first strip of outlet
Engagement positions 5, welding machine 6, the second strip of entrance upper channel parallel setting device 7, entrance upper channel are pinched
Under roller 8, the first strip of entrance upper channel parallel setting device 9, entrance upper channel kink 10, entrance
The second strip of passage parallel setting device 11, entrance lower channel pinch roll 12, entrance lower channel first
Strip parallel setting device 13, entrance lower channel kink 14.The strip parallel setting device of welding machine
Function is exactly：Ensure that the center line of leading strip and the angle degree of rear row strip center line are controlled certain
In the range of, its angle degree of perfect condition is 0 (the center line holding of i.e. leading strip and rear row strip
It is parallel), as shown in Figures 2 and 3.
Each strip parallel setting device can normally put into be welding machine a visual plant functional parameter,
After strip parallel setting device function is effectively put into, it can be ensured that welding machine will be welded with rear row strip in advance
After the completion of connecing, strip does not produce the shape of camber after welding, and good strip steel weld joint shape is machine
Group leads at a high speed a necessary condition of plate.
Existing control method is：
1. the small tower-loop control of strip parallel setting device uses " Synchronization Control " pattern, it is somebody's turn to do " Synchronization Control "
Pattern is exactly that welding machine is sending small kink order simultaneously to unit, (is now designed after delay certain time
2 seconds), loop back roll vertical motion order is sent, when unit plays small kink, welding machine loop back roll is used
The synchronous control method risen.
2. the retrogressing control of strip parallel setting device uses " inertia control " pattern, it is somebody's turn to do " inertia control "
Pattern is exactly：During strip parallel setting device backward movement, welding machine PLC (programmable logic controller (PLC))
Low speed after its first high speed is controlled, when the device is close to when encountering off-line sensors, when PLC is (programmable
Logic controller) receive after the sensor high level " 1 ", send cease and desist order immediately, completely by strip
The inertia of parallel setting device continues to run forward so that the device and off-line sensors are fully combined.
But, there are the following problems in actual use for above-mentioned control model：
1. because the small tower-loop control of strip parallel setting device uses " Synchronization Control " pattern, and unit
Play that the time of small kink includes the shut-in time of straightener and fieldbus (FL_NET) network is passed
Defeated order delay time etc., due to the uncertainty of these times, often occurs welding machine entrance automatic
The failure of time-out is walked, welding machine is because small tower-loop control is abnormal and make it that welding is interrupted, the parallel adjustment dress of strip
Putting normally effectively to put into operation, cause after welding machine welds strip, strip is formed in commissure
Serious camber shape (order of severity of camber shape depends on entrance pinch roll state),
It is also easy to produce deviation phenomenon when the strip steel weld joint of this camber shape is by stove, unit is had to reduction of speed
Production, when sideslip is serious, strip, which can be close to, causes compressor emergency shutdown.
2. because strip parallel setting device can not normally be put into, by welding the strip steel weld joint formed into sickle
The curved shape of knife, also easily causes circle shear is unilateral to cut failure, rotary shear equipment can not normally be put into,
Unit cannot normally go out finished product, and the logistics to cold rolling mill causes very big impact.
3. the backward movement control of strip parallel setting device uses " inertia control " pattern, band can be caused
Steel parallel setting device and the faying face of off-line sensors cause the signal lamp of the sensor less than 1/3
For " yellow " (shoulding normally be " green "), represent that the sensor is in a unsure state.And it is many
The secondary signal momentary loss for occurring the sensor, unit inlet section is because of welding machine " HOME POSITION "
(home position) dropout and shut down, if operative employee does not have found in time, central sections will be because
Entry loop strip draws empty and shut down, and has had a strong impact on stable operation of unit.
The content of the invention
For the above-mentioned problems in the prior art, it is an object of the invention to provide a kind of welding machine strip
The control method of parallel setting device, can adapt in the control of each strip parallel setting device of welding
System, good strip steel weld joint is provided for unit, and reduce the machine halt trouble of unit.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of control method of welding machine strip parallel setting device, including small loop control method：Welding machine
The making small kink order of upper channel is sent to unit；Small kink is made, and monitors the small kink of unit
Production Time；Confirm that the small kink amount of strip is more than 500mm；Small kink is completed to make；If small kink exists
Completed in the scheduled time, then welding machine no longer sends the vertical motion order of small loop back roll, otherwise welding machine is sent out
Go out the rising order of small loop back roll, and alarm；The small loop back roll of entrance declines；The small loop back roll of entrance declines
In place.
According to one embodiment of the invention, in addition to fallback control method：Welding machine is to the parallel adjustment of strip
Device sends backward movement order；Strip parallel setting device high-speed cruising；Run into high low speed switching point
When, the operation of strip parallel setting device low speed；When running into off-line sensors, by certain time-delay, weldering
Machine sends to strip parallel setting device and ceased and desisted order.
According to one embodiment of the invention, delay time is 0.1~0.3 second.
According to one embodiment of the invention, the speed of high-speed cruising is 500mm/3 seconds.
According to one embodiment of the invention, the speed of low speed operation is 500mm/18 seconds.
In the above-mentioned technical solutions, the control method of welding machine strip parallel setting device of the invention can be
Unit provides good strip steel weld joint, and reduces the machine halt trouble of unit.
Brief description of the drawings
Fig. 1 is welder equipment layout drawing；
Fig. 2 is the parallel adjusting means schematic diagram (outlet side) of strip；
Fig. 3 is the parallel adjusting means schematic diagram (entrance side) of strip；
Fig. 4 is the flow chart of small loop control method of the invention；
Fig. 5 is welding machine strip parallel device (P.A.D) control flow chart；
Fig. 6 is the parallel adjusting means schematic elevation view of welding machine.
Embodiment
Technical scheme is further illustrated with reference to the accompanying drawings and examples.
Reference picture 4 to Fig. 6, the control method of welding machine strip parallel setting device of the invention is mainly wrapped
Include 2 most of, i.e., small loop control methods and fallback control method.
As shown in figure 4, small loop control method comprises the following steps：
Welding machine sends the making small kink order of upper channel to unit.By taking unit upper channel as an example, work as welding machine
PLC (programmable logic controller (PLC)) is sent to machine set PLC (programmable logic controller (PLC)) to be led in making
The small kink order in road.
Small kink is made, and monitors the Production Time of the small kink of unit.It is (programmable in welding machine PLC
Logic controller) to unit send small kink make order while, start to monitor the small kink of unit
Production Time.Its calculation formula is：X=A+B (second).
Wherein X is：The supervisory control action time of small kink
A is：Upper channel makes the time of small kink,
B is：The surplus of monitoring alarm, preferably 2~3 seconds.
Confirm that the small kink amount of strip is more than 500mm；Complete small kink to make, now machine set PLC (can
Programmed logic controller) start uncoiler run forward it is out of service after 500MM.
If small kink is completed in the given time, welding machine no longer sends the vertical motion life of small loop back roll
Order, otherwise welding machine sends the rising order of small loop back roll, and alarms.
Specifically, if within the X times, the small kink of unit is completed, then welding machine is no longer sent out
Go out the vertical motion order of small loop back roll, if within the X times, the small kink of unit makes not complete
Into, then it represents that faulty, welding machine sends the rising order of loop back roll, and on picture (HMI)
Alarm, alarm content is：" entrance upper channel walks time-out automatically ".
The small loop back roll of entrance declines；The small loop back roll of entrance declines in place.
In addition, as shown in figure 5, the control method of the welding machine strip parallel setting device of the present invention is also wrapped
Fallback control method is included, it is mainly included the following steps that：
When welding machine PLC (programmable logic controller (PLC)) to strip parallel setting device sends backward movement
During order, first at a high speed, rear low speed is run strip parallel setting device, i.e.,：
Welding machine sends backward movement order to strip parallel setting device.
Strip parallel setting device high-speed cruising.
When running into high low speed switching point, the operation of strip parallel setting device low speed.
When running into off-line sensors, by certain time-delay, welding machine PLC (programmable logic controller (PLC))
Send and cease and desist order to strip parallel setting device.Delay time is preferably 0.1~0.3 second.
The high low speed switching point adjustment selection of strip parallel setting device has at following 2 points：
1. to take into full account strip parallel setting device running stability.Therefore, welding machine strip is parallel adjusts
The technological parameter of engagement positions is：It is at a high speed：500MM/3 seconds；Low speed is：500MM/18 seconds.
2. to consider welder automatically step as far as possible it is small occupy needed for entrance switching overall process when
Between, be conducive to set steady reliability service.Therefore, the high low speed switching point of strip parallel setting device is excellent
Elect 800~900MM as.
The retrogressing control of strip parallel setting device can cause strip using " delay stops " control model
Parallel setting device and off-line sensors faying face reach more than 1/2, it is ensured that off-line sensors signal is steady
It is fixed.
In summary, the present invention can have following beneficial effect：
1. the present invention can change in the past because the small tower-loop control of strip parallel setting device is using " same
Welding machine entrance step often alarm automatically caused by step control " pattern, so that strip parallel setting device
The shortcoming that can not normally put into.Weld shape is good after welder, so that it is guaranteed that weld seam is smooth
By stove, unit will not cause machine halt trouble because of sideslip.
2. the present invention can change in the past because strip parallel setting device can not normally be put into, by welding
The strip steel weld joint of formation causes the shortcoming that rotary shear equipment can not normally be put into camber shape.Disk
Cutting equipment can normally put into, and unit can directly produce finished product, ensure that the process logistics of cold rolling mill
State in efficient balance.
3. the present invention can change in the past because the backward movement of strip parallel setting device controls to use
" inertia control " pattern so that strip parallel setting device and the faying face of off-line sensors less than 1/3,
So as to cause the shortcoming of compressor emergency shutdown.Strip parallel setting device and the faying face of off-line sensors can be with
More than 1/2 is reached, the signal stabilization of off-line sensors is reliable, and unit will not be because of welding machine " HOME
POSITION " (home position) dropouts and shut down, it is ensured that stable operation of unit.
Below so that thickness is the strip that 0.25~2.3MM, width are 700~1630MM as an example, to enter
One step illustrates technical scheme.
In small loop control method, the small kink Production Time of up/down passage strip parallel setting device
For 7 seconds, the selection of monitoring alarm surplus was 2 seconds, therefore the monitoring of up/down passage strip parallel setting device
Time is set to 9 seconds.The small kink Production Time for exporting strip parallel setting device is 4 seconds, monitoring report
Alert surplus selection is 2 seconds, therefore the monitoring period of outlet side strip parallel setting device is set to 6 seconds.
In fallback control method, the high low speed switching point of strip parallel setting device is preferably 850MM,
Delay time is preferably：0.2 second so that strip parallel setting device and off-line sensors faying face reach
More than 1/2, it is ensured that off-line sensors signal stabilization.
As shown in fig. 6, the parallel adjusting means operating principle of above-mentioned strip is：Motor 15 passes through screw mandrel
The framework 17 of the parallel adjusting means of 16 driving strips is run forward, is subtracted when grating 18 detects strip
Speed simultaneously stops, and the clamp 19 of the parallel adjusting means of strip clamps strip, utilizes PAD1's and PAD2
The counting of encoder 20 carrys out calculated location value, so as to adjust PAD so that center and the unit of strip
Center parallel, motor 15 drives the frame fall back of frame 17 by screw mandrel 16, utilizes encoder 20
Reading carries out high low speed switching to the parallel adjusting means of strip (PAD), encounters after off-line sensors 21
It is out of service.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to
The bright present invention, and be not used as limitation of the invention, as long as in the spirit of the present invention
Interior, change, modification to embodiment described above will all fall in the range of claims of the present invention.
Claims (4)
1. a kind of control method of welding machine strip parallel setting device, it is characterised in that including small kink
Control method：
Welding machine sends the making small kink order of upper channel to unit；
Small kink is made, and monitors the Production Time of the small kink of unit；
Confirm that the small kink amount of strip is more than 500mm；
Small kink is completed to make；
If small kink is completed in the given time, welding machine no longer sends the vertical motion life of small loop back roll
Order, otherwise welding machine sends the rising order of small loop back roll, and alarms；
The small loop back roll of entrance declines；
The small loop back roll of entrance declines in place；
Described alarm is 2~3 seconds.
2. the control method of welding machine strip parallel setting device as claimed in claim 1, its feature exists
In, in addition to fallback control method：
Welding machine sends backward movement order to strip parallel setting device；
Strip parallel setting device high-speed cruising；
When running into high low speed switching point, the operation of strip parallel setting device low speed；
When running into off-line sensors, by certain time-delay, welding machine is sent to strip parallel setting device to stop
Only order.
3. the control method of welding machine strip parallel setting device as claimed in claim 2, its feature exists
In the delay time is 0.1~0.3 second.
4. the control method of welding machine strip parallel setting device as claimed in claim 2, its feature exists
In the high low speed switching point of strip parallel setting device is preferably 800~900MM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093945.1A CN107097021B (en) | 2016-02-19 | 2016-02-19 | The control method of welding machine strip parallel setting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093945.1A CN107097021B (en) | 2016-02-19 | 2016-02-19 | The control method of welding machine strip parallel setting device |
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| Publication Number | Publication Date |
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| CN107097021A true CN107097021A (en) | 2017-08-29 |
| CN107097021B CN107097021B (en) | 2019-02-05 |
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| CN201610093945.1A Active CN107097021B (en) | 2016-02-19 | 2016-02-19 | The control method of welding machine strip parallel setting device |
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|---|---|---|---|---|
| JPH0871669A (en) * | 1994-09-07 | 1996-03-19 | Nippon Steel Corp | Continuous pressing device |
| JPH08132121A (en) * | 1994-11-11 | 1996-05-28 | Nkk Corp | Method for operating process line |
| JP2008264804A (en) * | 2007-04-17 | 2008-11-06 | Nippon Steel Corp | Methods of controlling tension of steel sheet and continuous rolling system |
| CN101311853A (en) * | 2007-05-21 | 2008-11-26 | 上海宝信软件股份有限公司 | Device of band steel continuous production unit for reducing front and back band steel welding time and method |
| JP2010284679A (en) * | 2009-06-11 | 2010-12-24 | Orii & Mec Corp | Feeder of belt-like material |
| CN102527720A (en) * | 2011-12-07 | 2012-07-04 | 鞍钢股份有限公司 | Control system and method of multi-roll straightening machine of cold-rolling recoiling unit |
| CN103088354A (en) * | 2011-10-31 | 2013-05-08 | 上海宝信软件股份有限公司 | Control method for eliminating strip steel bending-crease defect |
-
2016
- 2016-02-19 CN CN201610093945.1A patent/CN107097021B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0871669A (en) * | 1994-09-07 | 1996-03-19 | Nippon Steel Corp | Continuous pressing device |
| JPH08132121A (en) * | 1994-11-11 | 1996-05-28 | Nkk Corp | Method for operating process line |
| JP2008264804A (en) * | 2007-04-17 | 2008-11-06 | Nippon Steel Corp | Methods of controlling tension of steel sheet and continuous rolling system |
| CN101311853A (en) * | 2007-05-21 | 2008-11-26 | 上海宝信软件股份有限公司 | Device of band steel continuous production unit for reducing front and back band steel welding time and method |
| JP2010284679A (en) * | 2009-06-11 | 2010-12-24 | Orii & Mec Corp | Feeder of belt-like material |
| CN103088354A (en) * | 2011-10-31 | 2013-05-08 | 上海宝信软件股份有限公司 | Control method for eliminating strip steel bending-crease defect |
| CN102527720A (en) * | 2011-12-07 | 2012-07-04 | 鞍钢股份有限公司 | Control system and method of multi-roll straightening machine of cold-rolling recoiling unit |
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| CN107097021B (en) | 2019-02-05 |
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