CN106391724A - Automatic reversible cold rolling force control device and method - Google Patents
Automatic reversible cold rolling force control device and method Download PDFInfo
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- CN106391724A CN106391724A CN201610457139.8A CN201610457139A CN106391724A CN 106391724 A CN106391724 A CN 106391724A CN 201610457139 A CN201610457139 A CN 201610457139A CN 106391724 A CN106391724 A CN 106391724A
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000005097 cold rolling Methods 0.000 title claims abstract description 22
- 230000002441 reversible effect Effects 0.000 title abstract 3
- 238000005096 rolling process Methods 0.000 claims abstract description 136
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 238000003466 welding Methods 0.000 claims abstract description 33
- 238000010008 shearing Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 32
- 239000002994 raw material Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 8
- 230000002411 adverse Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B2038/004—Measuring scale thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/02—Transverse dimensions
- B21B2261/04—Thickness, gauge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/12—Rolling load or rolling pressure; roll force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2271/00—Mill stand parameters
- B21B2271/02—Roll gap, screw-down position, draft position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2275/00—Mill drive parameters
- B21B2275/02—Speed
- B21B2275/04—Roll speed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses an automatic reversible cold rolling force control device and method. The device comprises a rack, uncoiling machines, a coiling machine, leading tape coiling machines, a distance sensor, an electric welding machine, a shearing device, a PLC, a moving frame, a walking device, a leading tape clamp, a roller set, a thickness sensor and a sensor walking track. The PLC is electrically connected with the uncoiling machines, the coiling machine, the leading tape coiling machines, the distance sensor, the electric welding machine, the shearing device, the walking device, the leading tape clamp, the roller set and the sensor walking track. According to the automatic reversible cold rolling force control device and method, the PLC is adopted for controlling the shearing device to conduct automatic shearing, the electric welding machine is controlled to automatically weld a leading tape and a steel billet, and automation of the rolling process is achieved.
Description
Technical field
The invention belongs to cold rolling band steel technical field is and in particular to a kind of auto-reverse cold rolling force control device and control
Method processed.
Background technology
With expanding economy, the demand of stainless steel band steeply rises, and purposes constantly expands, and is widely used in electronics work
The all trades and professions such as industry, household electrical appliance, auto industry, mechanical industry, light industry and machinery, are not only the most advanced branches of science, new technology development
Important foundation, is also each traditional industry department high-tech, high level, the key raw material of high request product.Rustless steel refers to
Be difficult in air to get rusty, corrosion resistant steel in acid, alkali, salt.Cold-rolled strip is with hot rolling steel billet as raw material, through overpickling, rolls
System, annealing are made.
A kind of cold rolling process of very thin steel band disclosed in Chinese patent CN104646417A, the method is 7500 in roll-force
Under conditions of～15000KN, make, through 7 passes, the steel band that thickness is 0.1～0.2mm, under conditions of larger roll-force,
Improve mill speed and reduction in pass.A kind of cold rolling side of hard state stainless steel band disclosed in Chinese patent CN102029290B
Method, during breaking down, cold rolling 6-7 passage, in finishing stands, cold rolling 3-4 passage, rolling tensile force is respectively 6-12KN and 2-
5KN, and the speed of breaking down adopts 120m/min to keep constant, improves end properties quality, can meet the mechanics to finished product
Performance requirement.But the roll-force of said method or mill speed keep constant in the operation of rolling, for the heat of different qualities
Roll steel billet materials, obtain end product quality and also differ, therefore said method can not different qualities, different-stiffness raw material cold rolling
General in technique, and production efficiency is still relatively low.
Content of the invention
For the problems referred to above, for overcoming different quality hot rolling steel billet raw materials to obtain thickness, the product of finished product through cold-rolling process
Matter is different, and in the production efficiency for like products and the operation of rolling thickness of strips measurement error problem, the present invention carries
A kind of auto-reverse cold rolling force control device and control method are supplied.By shear automatic shearing is controlled using PLC,
Control electric welding machine automatic welding leader tape and steel billet it is achieved that the automatization of the operation of rolling；Passed by setting thickness above steel band
Sensor walking track, it is achieved that the transverse shifting of thickness transducer, can detect the thickness of steel band diverse location so that detecting number
Less according to error；By calculating the total reduction that a upper rolling process obtains, change the roll-force in the operation of rolling and mill speed, section
In about man-hour, improve production efficiency and production capacity；By the increase and decrease of PLC controlled rolling power and mill speed, less
Manual labor；By shear automatic shearing is controlled using PLC, control electric welding machine automatic welding leader tape and steel billet it is achieved that
The automatization of the operation of rolling.
The present invention takes technical scheme below to realize above-mentioned purpose：
A kind of auto-reverse cold rolling force control device, including frame (101), uncoiler (1), winder (2), leader tape volume machine
(3), range sensor (4), electric welding machine (5), shear (6), PLC (7), movement frame (8), running gear (9), draw
Band folder (10), roll stacks (11), thickness transducer (12), sensor walking track (13), described uncoiler (1) quantity is arranged on
Frame (101) both sides；Leader tape volume machine (3) is arranged between uncoiler (1) and frame (101)；Winder (2) is arranged on roll stacks
(11) both sides, and be located at below steel billet (102)；Described winder (2) two ends are fixedly installed band cramp；Described shear
(6) it is arranged on above frame (101), shear direction is the outside upright tangential direction of winder (2)；Described movement frame (8) peace
It is contained in roll stacks (11) both sides, movement frame (8) lower end is slidably connected with frame (101) by running gear (9)；Running gear
(9) it is provided with guiding clamp (10) above, guiding clamp (10) two ends are fixedly connected with movement frame (8)；Range sensor (4) is arranged on
Above guiding clamp (10), and two ends are fixedly connected with movement frame (8)；Sensor walking track (13) is located at outside movement frame (8),
And be fixedly connected with movement frame (8), parallel with range sensor (4)；Electric welding machine (5) is arranged on above range sensor (4), and
Two ends are fixedly connected with movement frame (8)；Described PLC (7) and uncoiler (1), winder (2), leader tape volume machine (3), away from
From sensor (4), electric welding machine (5), shear (6), running gear (9), guiding clamp (10), roll stacks (11), thickness sensing
Device (12), sensor walking track (13) electrical connection.
The step of control method is：
1) raw material prepares, and hot-strip 3.0-4.0mm is thick, and leader tape (103) passes through guiding clamp (10), and steel billet (102) is in leader tape
Movement frame (8) is passed through to enter roll stacks (11) above folder (10), electric welding machine (5) welds out and rolls side leader tape (103) and steel billet
(102)；Start PLC (7) power supply, setting the first rolling process roll-force, mill speed, the first rolling process roll-force scope
8000-10000KN, the first rolling process mill speed scope 320-330m/min；
2) the first rolling process, outlet side thickness transducer (12) is thick in upper timing detection steel billet (102) of sensor walking track (13)
Degree, time range is the 1-5 second；If run to sensor walking track (13) edge, reversely walk, when detection thickness is 0
Do not record the data detecting；When the distance values that lateral extent sensor (4) to be rolled detects change, PLC
(7) leader tape volume machine (3) is controlled to stop, the running gear (9) of side to be rolled is along the walking of steel billet (102) direction of motion up to detection number
Stop when value changes again, PLC (7) controls electric welding machine (5) welding steel billet (102) and leader tape (103)；
3), after each rolling process terminates, PLC (7) controls leader tape volume machine (3) to stop, and calculated thickness sensor (12) originally rolls
The meansigma methodss of journey detection and total reduction, compare the total reduction of current rolling process and the total reduction of a upper rolling process：
If a) total reduction≤upper rolling process total reduction+15% or total reduction >=upper rolling process total reduction+25%,
PLC (7) lifts next rolling process roll-force and mill speed, and lifting capacity is respectively 1000KN-1200KN, 100-150m/
Min, PLC (7) controls leader tape volume machine (3) reversion to enter next rolling process；
If if b) the upper rolling process total reduction+25% of a upper rolling process total reduction+15% ＜ total reduction ＜, PLC
(7) lift next rolling process mill speed and keep roll-force constant, lifting capacity is 100-250m/min, PLC (7) controls
Leader tape volume machine (3) reversion enters next rolling process；
If c) 90%≤and always pushing rate ＜ 92%, PLC (7) lifts next rolling process mill speed and keeps roll-force not
Become, lifting capacity is 50-100m/min, PLC (7) controls leader tape volume machine (3) reversion to enter next rolling process；
If d) always pushing rate >=92%, PLC (7) controls leader tape volume machine (3) to stop, and the side that goes out to roll of next rolling process is sheared
Device (6) shears steel band, controls homonymy band cramp clamping steel band, winder (2) winds, and enters last one rolling process, roll-force
Constant, lift rolling process mill speed 30-50m/min；
4) last one rolling process, rolling outlet side shear (6) shearing steel band, PLC (7) controlled rolling outlet side steel
Band folder clamping steel band, controls winder (2) winding；Range sensor (4) detection numerical value above steel billet to be rolled (102) occurs
During change, PLC (7) controls winder (2) to stop, and steel billet (102) side shear (6) to be rolled shears steel band, and PLC is controlled
Device (7) processed controls winder (2) to be again started up until winding completes, PLC (7) calculated thickness sensor (12) this rolling process
The meansigma methodss of detection.
The invention has the beneficial effects as follows：
The present invention passes through to control shear automatic shearing using PLC, control electric welding machine automatic welding leader tape and steel billet it is achieved that
The automatization of the operation of rolling.
The present invention adopts PLC to calculate the total reduction of every rolling pass, controls the roll-force of every section of rolling process and rolls
Speed processed, compared with the mode constant with roll-force or mill speed, has saved rolling time, has improve production efficiency.
The present invention adopt sensor walk track and thickness transducer it is achieved that thickness transducer transverse shifting so that
Sensor measures the thickness of multiple spot on width of steel band, and the data obtaining is more accurate, reduces the error of thickness measure.
The control method of the present invention is by the increase and decrease of PLC controlled rolling power and mill speed it is achieved that steel band rolls
The full-automation of system, decreases manpower consumption.
Brief description
Fig. 1 is：Auto-reverse cold rolling force control device structural representation of the present invention.
Fig. 2 is：Auto-reverse cold rolling force control device movement frame structural representation of the present invention.
In figure：
1st, uncoiler；2nd, winder；3rd, leader tape volume machine；4th, range sensor；5th, electric welding machine；6th, shear；7th, PLC controls
Device；8th, movement frame；9th, running gear；10th, guiding clamp；11st, roll stacks；12nd, thickness transducer；13rd, sensor walking track；
101st, frame；102nd, steel billet；103rd, leader tape.
Specific embodiment
The present invention will be described for 1-2 and comparative example, embodiment 1-2 below in conjunction with the accompanying drawings.
Comparative example：
Comparative example carries out cold rolling, cold rolling 7 passages by the way of the welding band-leading of two ends to 3 millimeters of steel billets, and roll-force keeps
9000KN is constant, and mill speed is respectively 325,560,670,700,780,850,1080 ms/min.Every time man-hour is respectively
For 8.3,5.9,4,6,7,9,11 minutes.The parameter of the operation of rolling such as following table：
Embodiment 1:
The auto-reverse cold rolling force control device that embodiment 1 adopts, including frame (101), uncoiler (1), winder
(2), leader tape volume machine (3), range sensor (4), electric welding machine (5), shear (6), PLC (7), movement frame (8), OK
Walking apparatus (9), guiding clamp (10), roll stacks (11), thickness transducer (12), sensor walking track, described uncoiler (1) number
Measure as 2, be separately mounted to frame (101) both sides；Leader tape volume machine (3) quantity is 2, is separately positioned on uncoiler (1) and machine
Between frame (101)；Winder (2) quantity is 2, is separately positioned on the both sides of roll stacks (11), and is located under steel billet (102)
Side；Described winder (2) two ends are fixedly installed band cramp；Described shear (6) is arranged on above frame (101), shearing
Direction is the outside upright tangential direction of winder (2)；The quantity of described movement frame (8) is 2, is separately mounted to roll stacks
(11) both sides, described movement frame (8) lower end is slidably connected with frame (101) by running gear (9)；Above running gear (9)
It is provided with guiding clamp (10), guiding clamp (10) two ends are fixedly connected with movement frame (8)；Range sensor (4) is arranged on guiding clamp
(10) above, and two ends are fixedly connected with movement frame (8)；Sensor walking track is located at outside movement frame (8), and and movement frame
(8) it is fixedly connected, parallel with range sensor (4)；Electric welding machine (5) is arranged on above range sensor (4), and two ends and motion
Frame (8) is fixedly connected；Described PLC (7) and uncoiler (1), winder (2), leader tape volume machine (3), range sensor
(4), electric welding machine (5), shear (6), running gear (9), guiding clamp (10), roll stacks (11), thickness transducer (12), biography
Sensor walking track electrical connection.
The step of its control method is：
1) raw material prepares, and hot-strip 3.0mm is thick, and the right and left leader tape (103) passes through guiding clamp (10), steel billet (102) from
From left to right rolls, and steel billet (102) passes through movement frame (8) to enter roll above guiding clamp (10), welds out and rolls side leader tape (103)
With steel billet (102)；Start PLC (7) power supply, setting the first rolling process roll-force, mill speed, the first rolling process roll-force model
Enclose 8000KN, the first rolling process mill speed scope 320m/min；
2) the first rolling process, right thickness sensor (12) detects steel billet (102) in sensor walking track (13) upper walking timing
Thickness, time range is 5 seconds；If run to sensor walking track (13) edge, reversely walk, when detection thickness is 0
Do not record the data detecting；When the distance values that left side range sensor (4) detects change, PLC (7)
Leader tape volume machine (3) is controlled to stop, the running gear (9) in left side is along the walking of steel billet (102) direction of motion up to detection numerical value again
Secondary stop when changing, travel time is 18 seconds, and PLC (7) controls electric welding machine (5) welding steel billet (102) and leader tape
(103)；
3) the first rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) first and rolls
Meansigma methodss 1.9mm of journey detection, the upper rolling process total reduction 0+25% of total reduction 37% ＞, PLC (7) lifting second
Rolling process roll-force 1000KN, is promoted to 9000KN, lifts the second rolling process mill speed 100m/min, is promoted to 420m/min；PLC
Controller (7) controls leader tape volume machine (3) adverse movement to start the second rolling process；
4) the second rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) second and rolls
Meansigma methodss 1.35mm of journey detection, under the upper rolling process stagnation pressure of upper rolling process total reduction 37%+15% ＜ total reduction 55% ＜
Rate 37%+25%, the 3rd rolling process roll-force is constant, lifts the 3rd rolling process mill speed 100m/min, is promoted to 520m/min；
PLC (7) controls leader tape volume machine (3) adverse movement to start the 3rd rolling process；
5) the 3rd rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) the 3rd and rolls
Meansigma methodss 1.11mm of journey detection, the upper rolling process total reduction 55%+15% of total reduction 63% ＜, PLC (7) is lifted
4th rolling process roll-force 1000KN, is promoted to 10000KN, lifts the 4th rolling process mill speed 100m/min, is promoted to 620m/
min；PLC (7) controls leader tape volume machine (3) adverse movement to start the 4th rolling process；
6) the 4th rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) the 4th and rolls
Meansigma methodss 0.8mm of journey detection, the upper rolling process total reduction 63%+15% of total reduction 70% ＜, PLC (7) is lifted
5th rolling process roll-force 1000KN, is promoted to 11000KN, lifts the 5th rolling process mill speed 100m/min, is promoted to 720m/
min；PLC (7) controls leader tape volume machine (3) adverse movement to start the 5th rolling process；
7) the 5th rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) the 5th and rolls
Meansigma methodss 0.3mm of journey detection, 90%≤total reduction 90% ＜ 92%, the 6th rolling process roll-force is constant, lifts the 6th rolling process
Mill speed 50m/min, is promoted to 770m/min；PLC (7) control leader tape volume machine (3) adverse movement starts the 6th and rolls
Journey；
8) the 6th rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) the 6th and rolls
Meansigma methodss 0.2mm of journey detection, total reduction 93% ＞ 92%, steel band sheared by right side shear (6), and steel band is made by gravity
With falling on winder (2), PLC (7) leader tape volume machine (3) stops, and controls right side band cramp clamping steel band, right side winds
Machine (2) winds, and enters last one rolling process, and roll-force is constant, lifts rolling process mill speed 50m/min, is promoted to 820m/min；
9) last one rolling process, when left side range sensor (4) detects pad, when that is, detection numerical value changes, PLC is controlled
Device (7) processed controls winder (2) to stop, and steel band sheared by left side shear (6), and PLC (7) controls winder (2) again
Secondary startup completes until winding, meansigma methodss 0.15mm of PLC (7) calculated thickness sensor (12) this rolling process detection.
The parameter of the operation of rolling such as following table：
Embodiment 2:
The auto-reverse cold rolling force control device that embodiment 2 adopts, including frame (101), uncoiler (1), winder
(2), leader tape volume machine (3), range sensor (4), electric welding machine (5), shear (6), PLC (7), movement frame (8), OK
Walking apparatus (9), guiding clamp (10), roll stacks (11), thickness transducer (12), sensor walking track, described uncoiler (1) number
Measure as 2, be separately mounted to frame (101) both sides；Leader tape volume machine (3) quantity is 2, is separately positioned on uncoiler (1) and machine
Between frame (101)；Winder (2) quantity is 2, is separately positioned on the both sides of roll stacks (11), and is located under steel billet (102)
Side；Described winder (2) two ends are fixedly installed band cramp；Described shear (6) is arranged on above frame (101), shearing
Direction is the outside upright tangential direction of winder (2)；The quantity of described movement frame (8) is 2, is separately mounted to roll stacks
(11) both sides, described movement frame (8) lower end is slidably connected with frame (101) by running gear (9)；Above running gear (9)
It is provided with guiding clamp (10), guiding clamp (10) two ends are fixedly connected with movement frame (8)；Range sensor (4) is arranged on guiding clamp
(10) above, and two ends are fixedly connected with movement frame (8)；Sensor walking track is located at outside movement frame (8), and and movement frame
(8) it is fixedly connected, parallel with range sensor (4)；Electric welding machine (5) is arranged on above range sensor (4), and two ends and motion
Frame (8) is fixedly connected；Described PLC (7) and uncoiler (1), winder (2), leader tape volume machine (3), range sensor
(4), electric welding machine (5), shear (6), running gear (9), guiding clamp (10), roll stacks (11), thickness transducer (12), biography
Sensor walking track electrical connection.
The step of its control method is：
1) raw material prepares, and hot-strip 3.0mm is thick, and the right and left leader tape (103) passes through guiding clamp (10), steel billet (102) from
From left to right rolls, and steel billet (102) passes through movement frame (8) to enter roll above guiding clamp, welds out and rolls side leader tape (103) and steel
Base (102)；Start PLC power supply, setting the first rolling process roll-force, mill speed, the first rolling process roll-force scope
10000KN, the first rolling process mill speed scope 330m/min；
2) the first rolling process, exit thickness sensor regularly detects steel billet (102) thickness on running gear, and time range is 2 seconds；
If run to walking rail flanges, reversely walk, detection thickness is not record the data detecting when 0；When left side distance
When the distance values that sensor (4) detects change, PLC controls leader tape volume machine (3) to stop, the walking dress in left side
Put (9) along the walking of steel billet (102) direction of motion until detection numerical value stops when changing again, travel time is 18 seconds,
PLC controls electric welding machine (5) welding steel billet (102) and leader tape (103)；
3) the first rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) first and rolls
Meansigma methodss 1.8mm of journey detection, the upper rolling process total reduction 0+25% of total reduction 40% ＞, PLC lifting second is rolled
Journey roll-force 1000KN, is promoted to 11200KN, lifts the second rolling process mill speed 150m/min, is promoted to 480m/min；PLC
Controller controls leader tape volume machine (3) adverse movement to start the second rolling process；
4) the second rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) second and rolls
Meansigma methodss 1.3mm of journey detection, the upper rolling process total reduction of upper rolling process total reduction 40+15% ＜ total reduction 57% ＜
40%+25%, the 3rd rolling process roll-force is constant, lifts the 3rd rolling process mill speed 200m/min, is promoted to 680m/min；PLC
Controller controls leader tape volume machine (3) adverse movement to start the 3rd rolling process；
5) the 3rd rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) the 3rd and rolls
Meansigma methodss 1.08mm of journey detection, the upper rolling process total reduction 57+15% of total reduction 64% ＜, PLC lifting the 4th
Rolling process roll-force 1200KN, is promoted to 12400KN, lifts the 4th rolling process mill speed 150m/min, is promoted to 830m/min；
PLC controls leader tape volume machine (3) adverse movement to start the 4th rolling process；
6) the 4th rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) the 4th and rolls
Meansigma methodss 0.6mm of journey detection, the upper rolling process total reduction of upper rolling process total reduction 64%+15% ＜ total reduction 80% ＜
64%+25%, the 5th rolling process roll-force is constant, and PLC lifts the 5th rolling process mill speed 200m/min, is promoted to
1030m/min；PLC controls leader tape volume machine (3) adverse movement to start the 5th rolling process；
7) the 5th rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) the 5th and rolls
Meansigma methodss 0.35mm of journey detection, the upper rolling process total reduction 80%+15% of total reduction 88% ＜, PLC lifts the
Six rolling process roll-forces 1200KN, are promoted to 13600KN, lift the 6th rolling process mill speed 150m/min, are promoted to 1180m/
min；PLC controls leader tape volume machine (3) adverse movement to start the 6th rolling process；
8) the 6th rolling process terminates, and PLC (7) controls leader tape volume machine (3) to stop, and calculates thickness transducer (12) the 6th and rolls
Meansigma methodss 0.2mm of journey detection, total reduction 93% ＞ 92%；Shear (6) shearing steel band, steel on the right side of PLC (7)
Band logical is crossed action of gravity and is fallen on winder (2), and PLC (7) controls right side band cramp clamping steel band, controls right side winding
Machine (2) winds, and enters last one rolling process, and roll-force is constant, lifts rolling process mill speed 50m/min, is promoted to 1230m/
min；
9) last one rolling process, when left side range sensor (4) detects pad, when that is, detection numerical value changes, PLC is controlled
Device processed controls winder (2) to stop, and steel band sheared by left side shear (6), and PLC controls winder (2) to be again started up
Until winding completes, meansigma methodss 0.14mm of PLC calculated thickness this rolling process of sensor detection.
The parameter of the operation of rolling such as following table：
Technical scheme, compared with comparative example, has saved rolling time, improves production efficiency；Reduce thickness measure
Error it is achieved that steel band rolling full-automation, decrease manpower consumption.
Claims (2)
1. a kind of auto-reverse cold rolling force control device it is characterised in that：Including frame (101), uncoiler (1), winding
Machine (2), leader tape volume machine (3), range sensor (4), electric welding machine (5), shear (6), PLC (7), movement frame (8),
Running gear (9), guiding clamp (10), roll stacks (11), thickness transducer (12), sensor walking track (13), described uncoiling
Machine (1) is arranged on frame (101) both sides；Leader tape volume machine (3) is arranged between uncoiler (1) and frame (101)；Winder (2)
It is arranged on the both sides of roll stacks (11), and be located at below steel billet (102)；Described winder (2) two ends are fixedly installed band cramp；
Described shear (6) is arranged on above frame (101), and shear direction is the outside upright tangential direction of winder (2)；Described
Movement frame (8) is arranged on roll stacks (11) both sides, and movement frame (8) lower end is passed through running gear (9) and slided even with frame (101)
Connect；It is provided with guiding clamp (10), guiding clamp (10) two ends are fixedly connected with movement frame (8) above running gear (9)；Distance-sensing
Device (4) is arranged on above guiding clamp (10), and two ends are fixedly connected with movement frame (8)；Sensor walking track (13) is located at fortune
Outside moving frame (8), and it is fixedly connected with movement frame (8), parallel with range sensor (4)；Electric welding machine (5) is arranged on Distance-sensing
Above device (4), and two ends are fixedly connected with movement frame (8)；Described PLC (7) and uncoiler (1), winder (2), draw
Band volume machine (3), range sensor (4), electric welding machine (5), shear (6), running gear (9), guiding clamp (10), roll stacks
(11), thickness transducer (12), sensor walking track (13) electrical connection.
2. a kind of auto-reverse cold rolling force control device according to claim 1 control method it is characterised in that
The step of described control method is：
1) raw material prepares, and hot-strip 3.0-4.0mm is thick, and leader tape passes through guiding clamp (10), and steel billet (102) is in guiding clamp (10)
Top passes through movement frame (8) to enter roll stacks (11), and electric welding machine (5) welds out and rolls side leader tape (103) and steel billet (102)；Start
PLC (7) power supply, setting the first rolling process roll-force, mill speed, the first rolling process roll-force scope 8000-10000KN,
First rolling process mill speed scope 320-330m/min；
2) the first rolling process, outlet side thickness transducer (12) is thick in upper timing detection steel billet (102) of sensor walking track (13)
Degree, time range is the 1-5 second；If run to sensor walking track (13) edge, reversely walk, when detection thickness is 0
Do not record the data detecting；When the distance values that lateral extent sensor (4) to be rolled detects change, PLC
(7) leader tape volume machine (3) is controlled to stop, the running gear (9) of side to be rolled is along the walking of steel billet (102) direction of motion up to detection number
Stop when value changes again, PLC (7) controls electric welding machine (5) welding steel billet (102) and leader tape (103)；
3) rolling process in the middle of, after each rolling process terminates, PLC (7) controls leader tape volume machine (3) to stop, and calculated thickness sensing
The meansigma methodss of device (12) this rolling process detection and total reduction, compare under the total reduction of current rolling process and the stagnation pressure of a upper rolling process
Rate：
If a) total reduction is total more than or equal to a upper rolling process less than or equal to a upper rolling process total reduction+15% or total reduction
Reduction ratio+25%, then PLC (7) lift next rolling process roll-force and mill speed, lifting capacity is respectively 1000KN-
1200KN, 100-150m/min, reversion leader tape volume machine (3) enters next rolling process；
If b) total reduction is less than a upper rolling process total reduction+25% and is more than a upper rolling process total reduction+15%, PLC is controlled
Device (7) processed lifts next rolling process mill speed and keeps roll-force constant, and lifting capacity is 100-250m/min, reversion leader tape volume machine
(3) enter next rolling process；
If the rate that c) always pushes is less than 92% and is more than or equal to 90%, PLC (7) lifts next rolling process mill speed simultaneously
Keep roll-force constant, lifting capacity is 50-100m/min, reversion leader tape volume machine (3) enters next rolling process；
If the rate that d) always pushes is more than or equal to 92%, PLC (7) controls leader tape volume machine (3) to stop, the going out of next rolling process
Roll side shear (6) shearing steel band, control homonymy band cramp clamping steel band, winder (2) winds, and enters and finally rolls together
Journey, roll-force is constant, lifts rolling process mill speed 30-50m/min；
4) last one rolling process, rolling outlet side shear (6) shearing steel band, PLC (7) controlled rolling outlet side steel
Band folder clamping steel band, controls winder (2) winding；Range sensor (4) detection numerical value above steel billet to be rolled (102) occurs
During change, PLC (7) controls winder (2) to stop, and steel billet (102) side shear (6) to be rolled shears steel band, and PLC is controlled
Device (7) processed controls winder (2) to be again started up until winding completes, PLC (7) calculated thickness sensor (12) this rolling process
The meansigma methodss of detection.
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Denomination of invention: An automatic reversible cold rolling force control device and control method Effective date of registration: 20231207 Granted publication date: 20190205 Pledgee: Guangxi Beibu Gulf Bank Co.,Ltd. Wuzhou Branch Pledgor: GUANGXI WUZHOU JINHAI STAINLESS STEEL Co.,Ltd. Registration number: Y2023980069819 |