CN112122362B - Steel coil width centering device and method - Google Patents
Steel coil width centering device and method Download PDFInfo
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- CN112122362B CN112122362B CN202010894829.6A CN202010894829A CN112122362B CN 112122362 B CN112122362 B CN 112122362B CN 202010894829 A CN202010894829 A CN 202010894829A CN 112122362 B CN112122362 B CN 112122362B
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- steel coil
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- mandrel
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
Abstract
The invention discloses a steel coil width centering device, which comprises: the device comprises an action mechanism and a laser range finder arranged on the action mechanism, wherein the laser range finder is located at a working position when the action mechanism acts, the laser range finder is located at a waiting position when the action mechanism acts again, the working position is located on a delivery channel, the linear distance between the working position and the end part of a coiler mandrel in the direction of the delivery channel is larger than 1400mm, and the waiting position is far away from the delivery channel. The invention also provides a steel coil width centering method which comprises the step of centering according to the length L1Thickness L of2Distance L, L3And width w, calculating deviation Δ L; transversely moving the delivery trolley to adjust the distance LxAnd enabling the deviation | delta L | to be less than or equal to 2mm, and finishing the width centering of the steel coil. The method avoids the problem of inaccurate measurement of the width of the steel coil caused by uncertain factors, and the accuracy of the width centering of the steel coil is high.
Description
Technical Field
The invention relates to the technical field of continuous or discontinuous production lines in the metallurgical industry, in particular to a steel coil width centering device and a steel coil width centering method.
Background
The single-stand reversible rolling mill loads the steel coil on a mandrel of a coiling machine before rolling starts, then feeds the strip head into the rolling mill for threading through uncoiling operation, and rolls the strip head after coiling the strip head on the other side by using the coiling machine. The single-stand reversible rolling mill has the characteristics of large-tension rolling, short rolling line and compact structure, and cannot be provided with an automatic centering and deviation-correcting device in the rolling process, so that in order to ensure the tension symmetry in the rolling process, after the coiling is finished, the width center line of a steel coil needs to be consistent with the rolling center line of a mandrel, and then the steel coil is threaded, so that the deviation and the strip breakage in the rolling process are avoided.
The width centering detection device used at present is a photoelectric sensor for detection, as shown in fig. 1, in the process of transversely moving and coiling the consignment trolley, when the consignment trolley passes through the photoelectric sensor, a steel coil shields a light source of the photoelectric sensor, the photoelectric sensor sends a signal to start the calculation of the width of the steel coil, after the steel coil passes through the photoelectric sensor, the normal photoelectric sensor of the light source obtains the signal width to finish the calculation, the width of the steel coil is calculated according to the transverse moving distance of the consignment trolley during the shielding of the light source, and therefore the position where the consignment trolley needs to stop when the steel coil is centered is calculated.
The method is a centering operation performed before coiling, but in the actual coiling process, after the position of the hauling trolley which needs to be stopped when the steel coil is centered is calculated through the photoelectric sensor, the steel coil cannot be accurately centered due to the fact that the steel coil width measurement is inaccurate due to uncertain factors such as the fact that staggered layers exist on the inner ring and the outer ring of the steel coil, meanwhile, due to the fact that relative sliding is caused due to the fact that friction force between a carrier roller of the coiling trolley and the steel coil is small, relative displacement exists between the steel coil and the steel coil traversing trolley in the steel coil coiling process, a large error exists in final width centering, personnel are required to enter the steel coil ruler to manually measure and perform multiple equipment action adjustment, a large potential safety hazard exists, meanwhile, the personnel are uneven in level, the final steel coil centering precision is inconsistent, and the operation efficiency and the production stability are greatly influenced.
Therefore, how to develop a steel coil width centering method, so that the position of the steel coil is accurately measured in real time in the coiling process, the problem of inaccurate steel coil width measurement caused by uncertain factors such as layer staggering and the like existing in the inner ring and the outer ring of the steel coil is avoided, and the technical problem to be solved urgently is solved.
Disclosure of Invention
The invention aims to provide a steel coil width centering device and a steel coil width centering method, which can accurately measure and adjust the position of a steel coil in real time in the coiling process, avoid the problem of inaccurate steel coil width measurement caused by uncertain factors such as wrong layers of an inner ring and an outer ring of the steel coil and have high accuracy in steel coil width centering.
In order to achieve the above object, in one aspect, the present invention provides a steel coil width centering device, including: the device comprises an action mechanism and a laser range finder arranged on the action mechanism, wherein the laser range finder is positioned at a working position when the action mechanism acts, the laser range finder is positioned at a waiting position when the action mechanism acts again, the working position is positioned on a delivery channel, the linear distance between the working position and the end part of a mandrel of the coiling machine in the direction of the delivery channel is larger than 1400mm, and the waiting position is far away from the delivery channel.
Furthermore, the action mechanism comprises a support rod, a connecting support and an air cylinder, the connecting support is connected with the air cylinder, the laser range finder is positioned on the support rod, the support rod and the connecting support are in obtuse angle cross connection, and the air cylinder enables the laser range finder to be positioned in the waiting position when stretching action is carried out; the cylinder drives the connecting support and then the supporting rod is in a horizontal state when retracting, so that the laser range finder is located at the working position.
Furthermore, actuating mechanism still includes unable adjustment base, linking bridge's bottom through the pivot with unable adjustment base is the rotation and connects, the cylinder is located unable adjustment base is last.
Furthermore, a photoelectric sensor is arranged on the supporting rod.
Further, the steel coil width centering device comprises a light spot switch reflecting plate positioned on a mandrel base of the coiling machine.
On the other hand, the invention also provides a steel coil width centering method, which comprises the following steps:
preparing a coiling machine which comprises a coiling machine body and a thickness L which are connected in sequence2Is of length L 1The mandrel of (2);
obtaining the steel coil width centering device and the distance L from the working position to the coiler body3；
Obtaining a steel coil with the width of w; transferring the coil steel to a delivery trolley, and enabling the delivery trolley to drive the coil steel to transversely move towards the mandrel direction and pass through the working position, and then starting an action mechanism of the coil steel width centering device to act so that a laser distance meter is positioned at the working position;
then the consignment trolley transversely moves and consigns the steel coil is inserted into the mandrel, the laser range finder is used for detecting the distance L between the laser range finder and the side of the steel coil close to the laser range finder in the insertion processx；
According to the length L1Thickness L2Distance L3And width w, calculating deviation Δ L;
transversely moving the delivery trolley to adjust the distance LxSo that the deviation is
And stopping transversely moving the steel coil at a position less than or equal to 2mm to complete the width centering of the steel coil.
Further, the distance for driving the steel coil to transversely move towards the mandrel direction by the consignment trolley is 6000 mm-6500 mm.
Further, the length L is used as the reference length1Thickness L2Distance L3And a width w, calculating a deviation Δ L, comprising:
further, the distance L is adjusted by moving the consignment trolley xSo that the deviation is
2mm, back stop the sideslip coil of strip accomplishes coil of strip width centering, include:
when in use
When the thickness is larger than or equal to 2mm, the consignment trolley moves towards the side close to the mandrel, so that the steel coil is driven to move towards the direction of the central line of the mandrel;
when in use
When the thickness is less than or equal to-2 mm, the consignment trolley moves towards the side far away from the mandrel, so that the steel coil is driven to move towards the central line direction of the mandrel.
Further, the speed of traverse of the haul-in trolley follows the deviation
Is changed in a stepwise manner, and:
when in use
When the transverse moving speed of the consignment trolley is more than or equal to 100mm, the transverse moving speed of the consignment trolley is 30 m/min;
when 100mm >)
When the transverse moving speed of the consignment trolley is more than or equal to 20mm, the transverse moving speed of the consignment trolley is 15 m/min;
when 20mm >)
During the process, the transverse moving speed of the consignment trolley is 5 m/min.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
according to the steel coil width centering device and the steel coil width centering method, the position deviation between the central line of the steel coil width and the central line of the mandrel can be detected in real time in the automatic steel coil winding process, and the consignment trolley is operated to transport the steel coil to complete the winding process, so that the steel coil width centering precision after winding can meet the steel coil rolling requirement, the laser distance meter measuring point is located at the position with orderly winding between the inner ring and the outer ring of the steel coil, the problem of inaccurate steel coil width measurement caused by uncertain factors such as wrong layers of the inner ring and the outer ring of the steel coil is avoided, and the accuracy of steel coil width centering is high; and the problem that the width centering device is installed in a production operation area without space and the potential safety hazard that personnel enter a rolling mill area to carry out width centering measurement are solved through the arrangement of the working position and the waiting position, and the action error caused by the fact that the personnel use the steel tape to carry out steel coil width centering measurement is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of a steel coil width centering method in the prior art;
fig. 2 is a schematic view of a steel coil width centering device provided in embodiment 1 of the present invention in a waiting position;
fig. 3 is a schematic view of a steel coil width centering device provided in embodiment 1 of the present invention in a working position;
FIG. 4 is a schematic view of an automatic width centering principle;
fig. 5 is a flowchart of a method for centering a steel coil width according to an embodiment of the present invention;
1. a laser range finder; 21. a support bar; 22. connecting a bracket; 23. a cylinder; 24. a fixed base; 25. a rotating shaft; 26. a photosensor; 41. A coiler body; 42. fixedly mounting a bottom plate; 43. a mandrel; 431. a mandrel centerline; 5. a steel coil; 51. the center line of the width of the steel coil; 6. a consignment trolley; 7. a consignment channel.
Detailed Description
The present invention will be specifically explained below in conjunction with specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly presented thereby. It will be understood by those skilled in the art that these specific embodiments and examples are for the purpose of illustrating the invention and are not to be construed as limiting the invention.
Throughout the specification, unless otherwise specifically noted, terms used herein should be understood in accordance with the meanings commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
according to an exemplary embodiment of the present invention, there is provided a steel coil width centering device, including: the device comprises an action mechanism and a laser range finder 1 arranged on the action mechanism, wherein the laser range finder 1 is located at a working position when the action mechanism acts, the laser range finder 1 is located at a waiting position when the action mechanism acts again, the working position is located on a delivery channel, the linear distance between the working position and the end part of a coiler mandrel in the direction of the delivery channel is larger than 1400mm, and the waiting position is far away from the delivery channel.
The problem that the width centering device is installed in the production operation area without space is solved through the arrangement of the working position and the waiting position, the potential safety hazard that personnel enter the rolling mill area to carry out width centering measurement is avoided, and the action error caused by the fact that the personnel use the steel tape to carry out steel coil width centering measurement is avoided. Can real-time detection at the automatic in-process of rolling up of coil of strip through the device, positional deviation between the central line of coil of strip width and the dabber central line measures the position through laser range finder and is located the neat position that curls in the middle of coil of strip inner circle and outer lane, has avoided if there is coil of strip width measurement inaccuracy problem that uncertain factors such as staggered floor lead to in coil of strip inner circle and outer lane, and the degree of accuracy in coil of strip width centering is high.
The reason why the straight-line distance of the working position from the end part of the coiler mandrel in the direction of the consignment channel is more than 1400mm is that: the distance between the measuring device and the end part of the mandrel is greater than the maximum width (generally 1300 mm) of one steel coil, and the measuring device is close to the mandrel as much as possible, so that distance measuring errors are avoided, and the measuring precision of the distance measuring instrument can be improved.
As an optional embodiment, the actuating mechanism includes a support rod 21, a connecting bracket 22 and an air cylinder 23, the connecting bracket 22 is connected to the air cylinder 23, the laser range finder 1 is located on the support rod 21, the support rod 21 and the connecting bracket 22 are in obtuse-angle cross connection, and when the air cylinder 23 performs a stretching action, the laser range finder 1 is located in the waiting position; when the cylinder 23 retracts, the connecting bracket 22 is driven to enable the supporting rod 21 to be in a horizontal state, so that the laser range finder 1 is located at the working position.
As an optional embodiment, the actuating mechanism further includes a fixing base 24, the bottom end of the connecting bracket 22 is rotatably connected to the fixing base 24 through a rotating shaft 25, and the air cylinder 23 is located on the fixing base 24.
As an optional embodiment, a photoelectric sensor 26 is further disposed on the supporting rod 21. The photoelectric sensor 26 can perform device position calibration and start real-time measurement using the laser range finder 1 after confirming that the device is in a normal position.
As an optional embodiment, the steel coil width centering device further comprises a photoelectric switch reflecting plate located on the mandrel of the coiling machine. Whether the reflector has a signal or not is checked, so that whether the supporting rod 21 is loosened or not in the process of moving from the waiting position to the working position can be detected.
According to another exemplary embodiment of the present invention, there is provided a method for centering a steel coil width, as shown in fig. 5, including:
s1, obtainingA coiling machine which comprises a coiling machine body 41 and a thickness L which are connected in sequence2And a fixed mounting base plate 42 and a length L1The core shaft 43;
s2, obtaining the steel coil width centering device, and obtaining the distance L from the working position to the coiler body3；
S3, obtaining a steel coil 5 with the width w; transferring the coil steel 5 to a delivery trolley 6, and when the delivery trolley 6 drives the coil steel 5 to transversely move towards the mandrel 43 and pass through the working position, starting an action mechanism of the coil steel width centering device to act so that a laser range finder is positioned at the working position;
S4, transversely moving the consignment trolley 6 to consign the steel coil 5 into the mandrel 43, and using the laser range finder 1 to detect the distance L between the laser range finder and the side of the steel coil close to the laser range finder in the insertion processx；
S5 according to length L1Thickness L2Distance L3And width w, calculating deviation Δ L; transversely moving the delivery trolley to adjust the distance LxSo that the deviation is
And stopping transversely moving the steel coil at a position less than or equal to 2mm to complete the width centering of the steel coil.
Specifically, as shown in FIG. 4, the length L is a function of1Thickness L2Distance L3And a width w, calculating a deviation Δ L, comprising:
according to the method, the position deviation between the central line of the width of the steel coil and the central line of the mandrel can be detected in real time in the automatic steel coil coiling process, and the consignment trolley is operated to transport the steel coil to complete the coiling process, so that the centering precision of the width of the steel coil after coiling can meet the rolling requirement of the steel coil, the problem of inaccurate measurement of the width of the steel coil caused by uncertain factors such as the staggered layers of the inner ring and the outer ring of the steel coil is avoided, and the centering precision of the width of the steel coil is high; and the potential safety hazard that personnel get into the rolling mill region and carry out width centering measurement has been solved through the setting of work position and waiting position, avoids personnel to use the steel tape measure to carry out the action error that coil of strip width centering measurement leads to.
As an optional implementation manner, the distance that the carrying trolley drives the steel coil to transversely move towards the mandrel direction is 6000mm to 6500 mm. This is because in practice it has been found that after a traverse of 6000mm to 6500mm, which is relatively close to the mandrel, a width centering of the traverse is required. When a steel coil is ready to be inserted into the mandrel through the centering device action mechanism, the action mechanism of the steel coil width centering device starts to act, so that the laser range finder is located at the working position.
Specifically, the distance L is adjusted by moving the consignment trolleyxSo that the deviation is
2mm, the sideslip is stopped to the back coil of strip, accomplish coil of strip width centering, include:
when in use
When the thickness is larger than or equal to 2mm, the consignment trolley moves towards the side close to the mandrel, so that the steel coil is driven to move towards the direction of the central line of the mandrel;
when in use
When the thickness is less than or equal to-2 mm, the consignment trolley moves towards the side far away from the mandrel, so that the steel coil is driven to move towards the central line direction of the mandrel.
As an alternative embodiment, the speed of the traversing of the consignment trolley is set to deviate with the position in order to avoid frequent adjustment of the device due to inertia and the like during the width centering process
The change is changed in a stepwise manner, and the stopping precision value of the trolley is ensured.
The speed of the transverse movement of the consignment trolley is along with the deviation 
Is changed in a stepwise manner, and:
when the temperature is higher than the set temperature
When the moving speed is more than or equal to 100mm, the moving speed of the consignment trolley is 30 m/min; when the deviation is large, the consignment trolley runs at a high speed;
when 100mm >)
When the distance between the two ends of the supporting trolley and the moving direction of the supporting trolley is more than or equal to 20mm, the transverse moving speed of the supporting trolley is 15 m/min; when the deviation is small, the operation is carried out at a medium speed;
when 20mm >)
When in use, the transverse moving speed of the consignment trolley is 5 m/min; when the deviation is close to 0, the low-speed running is carried out, and the over-tolerance of the stop position caused by inertia in the running process is avoided
A steel coil width centering apparatus and method according to the present application will be described in detail with reference to examples, comparative examples, and experimental data.
1. Preparing a steel coil width centering device:
preparing an action mechanism, wherein the action mechanism comprises a support rod 21, a connecting support 22, an air cylinder 23 and a fixed base 24, the connecting support is connected with the air cylinder 23, the laser range finder is positioned on the support rod, and the support rod 21 and the connecting support 22 are in obtuse angle cross connection; the bottom end of the connecting bracket 22 is rotatably connected with the fixed base 24 through a rotating shaft 25, and the air cylinder is positioned on the fixed base.
The laser range finder 1 and the photoelectric sensor 26 are arranged on the support rod 21;
as shown in fig. 2, when the cylinder 23 performs a stretching operation, the laser range finder 1 is located at a waiting position; at this time, the connecting bracket 22 is in a vertical state, the supporting rod 21 is in a waiting position,
When the laser rangefinder is in the waiting position, the distance is not required because the laser rangefinder is not in the working position, the laser rangefinder 1 is located at a position close to the mandrel at the moment, but after the support rod 21 descends (i.e. when the support rod is in the working position), the distance between the rangefinder and the end part of the mandrel is larger than 1400 mm; the distance between the measuring device and the end part of the mandrel is larger than the maximum width 1300mm of one steel coil, and the measuring device is close to the mandrel as much as possible, so that the distance measuring error is avoided, and the measuring precision of the distance measuring instrument is improved.
The waiting position is far away from the delivery channel, so that the subsequent delivery trolley can drive the steel coil to transversely move to the target height towards the mandrel direction (namely the delivery channel).
2. Preparing a coiler comprising a coiler body 41, of thickness L, connected in sequence2And a fixed mounting base plate 42 and a length L1The core shaft 43;
the photoelectric switch reflection plate is fixed on the installation bottom plate 42.
3. Before using consignment dolly 6 to carry out automatic upwind, obtain the coil of strip width value W (can use PLC computational system) that waits to coil at present, coil of strip width value acquisition mode has three kinds of modes, mode 1: automatically reading the width value of the rolled steel coil in the previous coil by default, and using the width value when the same specification of strip steel is rolled in batches; mode 2: clicking a rolling preset button, reading the data of the steel coil to be rolled from the three-level steel coil information system, and directly assigning the steel coil width to the current steel coil width position after reading the steel coil width; the mode 3 is to manually input the information of the width of the steel coil.
4. Transferring the coil steel to a delivery trolley 6, enabling the delivery trolley 6 to drive the coil steel to transversely move to a target height towards the direction of the mandrel, and then driving a coil steel 5 to transversely move towards the direction of the mandrel at a normal operation speed of 60 m/min; when a steel coil passes through the width centering device, starting an action mechanism of the steel coil width centering device to act so that the laser range finder is positioned at the working position;
as shown in fig. 3, at this time, when the cylinder 23 performs a retracting action, the connecting bracket 23 is driven to make the supporting rod 21 be in a horizontal state, so that the laser range finder 1 and the photoelectric sensor 26 are located at the working position.
The photoelectric sensor 26 carries out equipment position calibration, and after the equipment is confirmed to be in a normal position, the laser range finder 1 starts to measure the position of the end part of the strip steel from the range finder in real time, so that the position of the width center line of the strip steel from the center line of the mandrel is calculated.
After the cylinder 23 is operated, the speed of the hauling trolley is changed into low-speed transverse running of 30 m/min.
5. Later will 6 sideslip consignment of consignment dolly the coil of strip inserts the dabber, use in the insertion process the laser range finder detects the laser range finder with the coil of strip is close to distance L between the laser range finder side x(transmitting the measurement value to the PLC control system);
6. according to the length L1Thickness L of2Distance L, L3And width w, calculating deviation Δ L; the position control deviation in the automatic width centering adjustment process of the steel coil is
Wherein, the first and the second end of the pipe are connected with each other,
when no steel coil exists, the width centering device moves to the basic distance of the mandrel equipment, the photoelectric sensor 2 is calibrated during each movement to confirm that the value is not changed, the laser range finder 1 starts to measure, the value is a fixed value,
the thickness of the bottom plate is fixedly arranged for the mandrel equipment,
the length of the mandrel body is the length of the mandrel body,
is a strip width of
、
、
To be all constant values, known before the plant is put into operation,
known prior to performing the width centering action,
the method is a real-time measurement value of the laser range finder in the width centering process. By shifting the width of the steel coil in real time
Can finally obtain
A target value of less than or equal to 2 mm.
7. In order to avoid frequent adjustment of the equipment due to inertia and the like in the width centering process, the transverse moving speed of the consignment trolley is set to deviate along with the position
And the variable piecewise function ensures the trolley stopping precision value.
When the speed is more than or equal to 100mm, the speed of the consignment trolley is 30 m/min, and when the speed is 100mm >, the speed is higher
When the speed is more than or equal to 20mm, the speed of the consignment trolley is 15 m/min, and when the speed is 20mm >, the speed is higher 
In time, the consignment trolley speed is 5 m/min. When the temperature is higher than the set temperature
When the thickness is more than or equal to 2mm, the consignment trolley moves to the end close to the base of the mandrel, so thatAnd drives the steel coil to move towards the central line direction of the mandrel when
When the thickness is less than or equal to-2 mm, the consignment trolley moves to the end far away from the base of the mandrel, so as to drive the steel coil to move to the central line direction of the mandrel, when the thickness is less than or equal to-2 mm
And when the width is less than or equal to 2mm, considering that the position deviation between the central line of the steel coil and the central line of the mandrel is in an acceptable range, stopping moving the steel coil, expanding the mandrel of the coiling machine, and finishing automatic width centering.
Operating as described above, the distance L is adjusted by traversing the carrying carriagesxSo that the deviation is
Not more than 2mm, stopping transverse movement of the steel coil, completing different stages in the steel coil width centering process, and in the embodiment 1-embodiment 3, the length L1Thickness L2Distance L3And width w, deviation Δ L, as shown in table 1.
TABLE 1
Comparative example 1
This comparative example is a prior art centering method (the original centering method described in the background).
Test examples
1. The same batch of steel coils used in example 1 was used, and the centering operation was performed 5 times, and the deviation of the final width Δ L in the centering position is shown in table 2.
TABLE 2
As is clear from the data in Table 2, the deviations in example 1 of the present invention 
Less than or equal to 2mm and the accuracy is up to 100 percent.
2. The same batch of steel coils used in comparative example 1 was used, and the centering operation was performed 5 times, and the deviation of the final width Δ L in the centering position is shown in table 3.
TABLE 3
As can be seen from the data in Table 3, the deviation of comparative example 1 is 8 to 24mm, and the deviation is large.
Therefore, the method provided by the embodiment of the invention has higher accuracy, and in conclusion, the device and the method for centering the width of the steel coil provided by the invention can detect the position deviation between the central line of the width of the steel coil and the central line of the mandrel in the automatic steel coil winding process in real time, and move the consignment trolley to transport the steel coil to complete the winding process, so that the centering precision of the width of the steel coil after winding can be ensured to meet the rolling requirement of the steel coil, the problem of inaccurate measurement of the width of the steel coil caused by uncertain factors such as the existence of staggered layers of the inner ring and the outer ring of the steel coil is avoided, and the accuracy in the centering of the width of the steel coil is high; and through the setting of work position and waiting for the position, solved personnel and got into the rolling mill region and carried out width centering measuring potential safety hazard, avoid personnel to use the steel tape to carry out the action error that coil of strip width centering measurement leads to.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. The utility model provides a coil of strip width centering device which characterized in that includes: the device comprises an action mechanism and a laser range finder arranged on the action mechanism, wherein the laser range finder is positioned at a working position when the action mechanism acts, the laser range finder is positioned at a waiting position when the action mechanism acts again, the working position is positioned on a delivery channel, the linear distance between the working position and the end part of a coiler mandrel in the direction of the delivery channel is larger than 1400mm, and the waiting position is far away from the delivery channel;
The action mechanism comprises a support rod, a connecting support and an air cylinder, the connecting support is connected with the air cylinder, the laser range finder is positioned on the support rod, the support rod and the connecting support are in obtuse angle cross connection, and the air cylinder enables the laser range finder to be positioned at the waiting position when stretching action is carried out; when the cylinder retracts, the connecting support is driven to enable the supporting rod to be in a horizontal state, and therefore the laser range finder is located at the working position;
the actuating mechanism further comprises a fixed base, the bottom end of the connecting support is rotatably connected with the fixed base through a rotating shaft, and the air cylinder is positioned on the fixed base;
the support rod is also provided with a photoelectric sensor;
the steel coil width centering device further comprises a photoelectric switch reflecting plate positioned on the mandrel base of the coiling machine.
2. A steel coil width centering method is characterized by comprising the following steps:
preparing a coiling machine which comprises a coiling machine body and a thickness L which are connected in sequence2Is of length L1The mandrel of (1);
obtaining the steel coil width centering device of claim 1, obtaining the distance L from the working position to the coiler body 3；
Obtaining a steel coil with the width of w; transferring the steel coil to a delivery trolley, and enabling the delivery trolley to drive the steel coil to transversely move towards the mandrel direction and pass through the working position, starting an action mechanism of the steel coil width centering device to act so that a laser range finder is positioned at the working position;
will the delivery dolly sideslip delivery the coil of strip inserts the dabber, use in the insertion process the laser range finder detects the laser range finder with the coil of strip is close to distance L between the laser range finder sidex；
According to the length L1Thickness L of2Distance L3And width w, calculating deviation Δ L; transversely moving the delivery trolley to adjust the distance LxEnabling the deviation | delta L | to be less than or equal to 2mm, and then stopping transversely moving the steel coil to complete the width centering of the steel coil;
the distance for driving the steel coil to transversely move towards the mandrel direction by the consignment trolley is 6000 mm-6500 mm;
the length L1 and the thickness L2Distance L3And a width w, calculating a deviation Δ L, comprising:
3. the steel coil width centering method as claimed in claim 2, wherein said traversing said carrying cart adjusts said distance LxMaking the deviation | delta L | less than or equal to 2mm, and stopping Stopping the transverse movement of the steel coil to complete the width centering of the steel coil, and comprises the following steps:
when the delta L is larger than or equal to 2mm, the consignment trolley moves towards the side close to the mandrel, so that the steel coil is driven to move towards the direction of the central line of the mandrel;
when the delta L is less than or equal to minus 2mm, the consignment trolley moves towards the side far away from the mandrel, so that the steel coil is driven to move towards the direction of the central line of the mandrel.
4. A steel coil width centering method as claimed in any one of claims 2 to 3, wherein the traverse speed of said carrying cart is changed stepwise with said deviation Δ L, and:
when the absolute delta L is more than or equal to 100mm, the transverse moving speed of the consignment trolley is 30 m/min;
when the length of 100mm is more than | delta L | > and is more than or equal to 20mm, the transverse moving speed of the consignment trolley is 15 m/min;
when 20mm > | DeltaL | the traverse speed of the carrying trolley is 5 m/min.
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| CN202010894829.6A CN112122362B (en) | 2020-08-31 | 2020-08-31 | Steel coil width centering device and method |
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| CN202010894829.6A CN112122362B (en) | 2020-08-31 | 2020-08-31 | Steel coil width centering device and method |
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