CN111532733B - Method for preventing leg of angle steel from being scratched - Google Patents
Method for preventing leg of angle steel from being scratched Download PDFInfo
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- CN111532733B CN111532733B CN202010340366.9A CN202010340366A CN111532733B CN 111532733 B CN111532733 B CN 111532733B CN 202010340366 A CN202010340366 A CN 202010340366A CN 111532733 B CN111532733 B CN 111532733B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/244—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning them about an axis substantially perpendicular to the conveying plane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0214—Articles of special size, shape or weigh
- B65G2201/0217—Elongated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
The invention discloses a method for preventing an angle iron leg from being scratched, which comprises the following steps: s1, obtaining an upwarp value Yi of the head of the angle steel; s2, acquiring a position signal when the angle steel passes through the guide device; s3, calculating a position moving distance value Hi of the guide device in the vertical direction according to the upwarp value Yi of the angle steel; and S4, controlling the guide device to move along the vertical direction, wherein the moving distance of the guide device is Hi, so that the leg of the angle steel is always in contact with the outer circular surface of the guide roller of the guide device, and the angle steel is guided by the guide device to move. According to the method for preventing the leg of the angle steel from being scratched, the guide device is arranged to be adjustable in position, so that the leg of the angle steel can be always in contact with the guide roller of the guide device, the problem of scratching the leg in the production process of hot-rolled angle steel can be prevented, and the product quality is improved.
Description
Technical Field
The invention belongs to the technical field of hot-rolled angle steel production, and particularly relates to a method for preventing leg portions of angle steel from being scratched.
Background
When the hot-rolled angle steel is produced, in order to ensure that rolled pieces are placed uniformly and tidily after the angle steel is fed into a cooling bed, the longitudinal strip of the angle steel needs to be aligned before the cooling bed, namely a method of installing a guide roller at the port of a conveying roller way at the input end of the cooling bed is adopted, the angle steel is flush with the side edge of a steel feeding device of the cooling bed under the pushing action of the guide roller, and then the angle steel is turned into a stepping type cooling bed by the steel feeding device of the cooling bed.
At present, a guide device is arranged at a port of an input roller way of a cooling bed, a schematic view of the contact condition of an angle steel leg end and the roller way in the guide process is shown in fig. 4, and therefore the angle steel leg end is easy to block into a gap between a guide wheel and the input roller way, the angle steel leg end is scratched, and the use requirement of a customer is not met.
Aiming at the problems, the guide device needs to be redesigned and adjusted, and the specific scheme is as follows: 1) the length of the body of the guide roller was increased by 100mm, and the lower end surface of the guide roller was lowered by 10mm from the surface of the conveying roller path, thereby eliminating the vertical gap between the guide roller and the surface of the conveying roller path, as shown in fig. 5. The method effectively solves the problem of scratching the leg end of the angle steel. However, the head and the tail of the angle steel are easy to tilt up in the production process and have irregular shapes, once the head and the tail of the angle steel tilt up, the leg ends of the head are easy to clamp into the guide wheels, and the leg ends of the angle steel can be scratched.
Therefore, the existing method for guiding the port of the cold bed input roller way has the defects, and in order to thoroughly solve the problem, a new method for guiding the port of the cold bed input roller way needs to be developed again.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a method for preventing the leg of the angle steel from being scratched, and aims to prevent the leg from being scratched in the production process of hot-rolled angle steel and improve the product quality.
In order to achieve the purpose, the invention adopts the technical scheme that: the method for preventing the leg of the angle steel from being scratched comprises the following steps:
s1, obtaining an upwarp value Yi of the head of the angle steel;
s2, acquiring a position signal when the angle steel passes through the guide device;
s3, calculating a position moving distance value Hi of the guide device in the vertical direction according to the upwarp value Yi of the angle steel;
and S4, controlling the guide device to move along the vertical direction, wherein the moving distance of the guide device is Hi, so that the leg of the angle steel is always in contact with the outer circular surface of the guide roller of the guide device, and the angle steel is guided by the guide device to move.
The moving distance Hi of the guiding device is equal to Yi + n, and n is a safety factor.
And n is 10 mm.
And a rolled piece strip detection device is arranged, and the rolled piece strip detection device is used for detecting the upwarp value Yi of the head part of the angle steel.
And arranging a rolled piece identification device, detecting the starting time Ts when the angle steel passes through a guide roller of the guide device by the rolled piece identification device, and acquiring a position signal of the angle steel.
The guiding device comprises a guiding support, a guiding roller rotatably arranged on the guiding support, a height adjusting mechanism used for adjusting the height of the guiding support and an angle adjusting mechanism used for adjusting the angle of the guiding support, and the rotating center line of the guiding support is a vertical line.
The guide rollers are arranged in a plurality of numbers, all the guide rollers are sequentially arranged along the length direction of the guide support, and the guide rollers can be inserted into gaps between two adjacent conveying roller ways.
The height adjusting mechanism comprises a height adjusting actuator connected with the guide support, the height adjusting actuator is a hydraulic cylinder, and the height adjusting actuator is located above the guide support.
The angle adjusting mechanism comprises an angle adjusting actuator connected with the guide support, and the angle adjusting actuator is a hydraulic cylinder.
According to the method for preventing the leg of the angle steel from being scratched, the guide device is arranged to be adjustable in position, so that the leg of the angle steel can be always in contact with the guide roller of the guide device, the problem of scratching the leg in the production process of hot-rolled angle steel can be prevented, and the product quality is improved.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic view of the structure of a guide;
FIG. 2 is a schematic diagram of the overall system arrangement;
FIG. 3 is a diagram illustrating the upwarp value of the head of the angle iron;
FIG. 4 is a schematic view of a first guiding device in contact with an angle iron in the prior art;
FIG. 5 is a schematic view showing a second guiding device in contact with an angle iron in the prior art;
labeled as:
1. a rollgang; 2. a guide bracket; 3. a guide roller; 4. a height adjustment actuator; 5. an angle adjustment actuator; 6. angle steel; 601. a leg portion; 602. a tip;
7. a rolled piece strip detection device; 8. a rolled piece identification device; 9. a data processing system; 10. cooling the bed; 11. a finishing mill group; 12. a flying shear; 13. side guide plates.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the inventive concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 1 to 3, the invention provides a method for preventing an angle iron leg from being scratched, which comprises the following steps:
s1, obtaining an upwarp value Yi of the head of the angle steel;
s2, acquiring a position signal when the angle steel passes through the guide device;
s3, calculating a position moving distance value Hi of the guide device in the vertical direction according to the upwarp value Yi of the angle steel;
and S4, controlling the guide device to move along the vertical direction, wherein the moving distance of the guide device is Hi, so that the leg of the angle steel is always in contact with the outer circular surface of the guide roller of the guide device, and the angle steel is guided by the guide device to move.
Specifically, as shown in fig. 1 to 3, in step S1, a rolled piece strip detection device is provided, and the rolled piece strip detection device detects the upwarp Yi of the angle head. The angle steel produced by the finishing mill group is sheared by a flying shear, then is conveyed to a cooling bed by a conveying line, a rolled piece strip detection device and a guide device are sequentially arranged along the conveying direction of the angle steel, the rolled piece strip detection device is positioned between the flying shear and the guide device, the guide device is positioned between the rolled piece strip detection device and the cooling bed, and the conveying direction of the angle steel is the horizontal direction. The rolled piece strip-shaped detection device is a profile measuring instrument.
As shown in fig. 2, one end of the rolled angle steel is warped upward by a certain length, and the warp value Yi of the head of the angle steel is a vertical distance between a lower edge of an end surface of the end of the angle steel, which is warped upward, and the conveying surface. The conveying surface is a plane formed by outer diameter buses which are contacted with angle steel on the outer circular surface of the conveying roller way of the conveying line, the conveying surface is parallel to a first direction and a second direction, and the first direction and the second direction are horizontal directions and parallel to the conveying direction of the conveying line.
As shown in fig. 1, the conveying line includes a frame and a plurality of rotatable rollgang tables disposed on the frame, the rollgang tables are disposed in sequence along a conveying direction, a certain gap is provided between two adjacent rollgang tables, the rollgang tables are cylindrical, axes of the rollgang tables (i.e., a rotation center line thereof) are parallel to a second direction, and axes of all the rollgang tables are at the same height.
As shown in fig. 3, the angle steel is a structure with a V-shaped cross section formed by two connected legs, the formed angle steel has a tip, the two legs are connected at the tip, the end of the qualified angle steel does not warp upwards, and the height of the angle steel refers to the vertical distance between the tip of the angle steel and the plane where the end edges of the two legs of the angle steel, which are far away from the tip, are located. After the angle steel enters the conveying line, the angle steel is placed on the conveying surface in a state that the opening is downward, the lower edges of the two leg parts of the non-warping part of the angle steel are in contact with the conveying surface, and at the moment, the height of the angle steel refers to the vertical distance between the tip of the angle steel and the conveying surface.
As shown in fig. 1, in step S2, a product identification device is provided, and the product identification device detects a start time Ts of the angle steel passing through the guide rolls of the guide device, acquires a position signal of the angle steel, and uses the position signal as a signal for activating the next process. And the rolled piece identification device is positioned between the guide device and the rolled piece strip-shaped detection device along the conveying direction of the angle steel.
As shown in fig. 2, the moving distance Hi of the guide is Yi + n, and in step S3, the moving distance Hi of the guide is calculated according to the formula, where n is a safety factor and is in mm; yi is also in mm.
Preferably, n is 10mm, and a safety factor is set so as to prevent the angle steel from warping too much and running out of the side guide roller surface.
As shown in fig. 1, the guide device includes a guide bracket, a guide roller rotatably disposed on the guide bracket, a height adjustment mechanism for adjusting a height of the guide bracket, and an angle adjustment mechanism for adjusting an angle of the guide bracket, and a rotation center line of the guide bracket is a vertical line. The guide roll is vertically arranged, the guide roll is a cylinder, the excircle surface of the guide roll is a cylindrical surface, the axis of the guide roll is parallel to the rotation center line of the guide support, and the axis of the excircle surface of the guide roll is also the axis of the guide roll.
In the step S4, according to the calculated Hi value, the guide bracket is controlled to move upward from the initial position, the guide bracket drives the guide roller to move upward synchronously, the moving distance of the guide bracket is Hi, so that the guide bracket drives the guide roller to move to the top dead center position, thereby enabling the lower edges of the legs of the angle steel to be in contact with the outer circumferential surface of the guide roller all the time, the angle steel is guided by the guide roller to move, and preventing the feet of the angle steel from being clamped into the gap between the upper end of the guide roller and the guide bracket or into the vertical gap between the guide roller and the conveying roller way to cause the surface scratch of the angle steel, thereby ensuring the product quality.
After the guide roller moves upwards to the upper dead center position along the vertical direction from the initial position, the head of the angle steel (the head of the angle steel refers to one end of the angle steel, which enters the conveying line firstly) firstly contacts with the outer circular surface of the guide roller along the conveying direction, the height of the lower edge of the foot part of the angle steel descends gradually along with the continuous movement of the angle steel along the conveying direction, therefore, the guide bracket needs to be controlled to move downwards gradually from the upper dead center position, the guide bracket drives the guide roller to move downwards synchronously, the height of the guide roller descends gradually, the outer circular surface of the guide roller can be always kept in contact with the lower edge of the foot part of the angle steel until the guide bracket finally drives the guide.
As shown in fig. 1, when the angle steel passes through the guide device, the angle steel is positioned between the guide roller and the side guide plate, the length direction of the side guide plate is parallel to the conveying direction of the conveying line, the side guide plate is positioned above the conveying surface, and the angle steel is conveyed to the cooling bed along the side guide plate. The guide support and the side guide plates are arranged oppositely, the guide support has a certain length, the length direction of the guide support is the horizontal direction, one end of the guide support in the length direction is connected with the rack through a rotating shaft, and the rotating shaft is used as a guide shaft when the guide support moves along the vertical direction.
As shown in fig. 1, a plurality of guide rollers are provided, all the guide rollers are sequentially arranged along the length direction of the guide support, the guide rollers can be inserted into the gap between two adjacent rollgang, and the outer diameter of each guide roller is smaller than the width of the gap between two adjacent rollgang. When the guide rollers are at the initial positions, the end faces of the lower ends of the guide rollers are located below the conveying surfaces, the end faces of the upper ends of the guide rollers are located above the conveying surfaces, the guide rollers penetrate through gaps between every two adjacent conveying roller ways, each guide roller penetrates through a gap between every two adjacent conveying roller ways, and the guide rollers and the conveying roller ways are arranged in a staggered mode.
As shown in fig. 1, the height adjusting mechanism includes a height adjusting actuator connected to the guide bracket, the height adjusting actuator is a hydraulic cylinder, the height adjusting actuator is located above the guide bracket, and a piston rod of the height adjusting actuator is connected to the guide bracket. When the height adjusting actuator extends, the guide support can be pushed to move downwards, and the guide support drives the guide roller to descend synchronously; when the height adjusting actuator contracts, the guide support can be pulled to move upwards, and the guide support drives the guide roller to ascend synchronously.
As shown in fig. 1, the angle adjusting mechanism includes an angle adjusting actuator connected to the guide bracket, the angle adjusting actuator is a hydraulic cylinder, and a piston rod of the angle adjusting actuator is connected to the guide bracket. When the angle adjusting actuator extends, the angle adjusting actuator can push the guide support to swing towards a position close to the side guide plate, so that an included angle between the length direction of the guide support and the first direction is gradually increased, the guide support drives the guide roller to synchronously swing, and the distance between the guide roller and the side guide plate is gradually reduced; when the angle adjusting actuator contracts, the guide support can be pulled to swing towards the position far away from the side guide plate, so that the included angle between the length direction of the guide support and the first direction is gradually reduced, the guide support drives the guide roller to synchronously swing, and the distance between the guide roller and the side guide plate is gradually increased.
As shown in fig. 1, the rolled piece strip detection device and the rolled piece identification device are electrically connected with the data processing system, the rolled piece strip detection device and the rolled piece identification device transmit the acquired data to the data processing system, and the data processing system calculates the moving distance Hi of the guiding device; and when the rolled piece identification device detects that the angle steel reaches the guide roller, a guide roller control program is excited, and the guide roller starts to work.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (9)
1. The method for preventing the leg of the angle steel from being scratched is characterized by comprising the following steps of:
s1, obtaining an upwarp value Yi of the head of the angle steel;
s2, acquiring a position signal when the angle steel passes through the guide device;
s3, calculating a position moving distance value Hi of the guide device in the vertical direction according to the upwarp value Yi of the angle steel;
s4, controlling the guide device to move along the vertical direction, wherein the moving distance of the guide device is Hi, so that the leg of the angle steel is always in contact with the outer circular surface of the guide roller of the guide device, and the angle steel is guided by the guide device to move;
wherein, the moving distance Hi = Yi + n of the guiding device is a safety factor.
2. The method for preventing the scratch of the leg part of the angle iron as claimed in claim 1, wherein n is 10 mm.
3. The method for preventing the scratch of the leg part of the angle steel according to the claim 1, characterized in that a rolled strip detection device is provided, and the upwarp value Yi of the head part of the angle steel is detected by the rolled strip detection device.
4. The method for preventing the leg of the angle iron from being scratched according to any one of claims 1 to 3, wherein a rolled piece recognition device is provided, and a start time Ts during which the angle iron passes through guide rollers of the guide device is detected by the rolled piece recognition device to obtain a position signal of the angle iron.
5. The method for preventing the scratching of the leg portion of the angle iron as claimed in any one of claims 1 to 3, wherein the guiding means comprises a guiding bracket, a guiding roller rotatably disposed on the guiding bracket, a height adjusting mechanism for adjusting the height of the guiding bracket, and an angle adjusting mechanism for adjusting the angle of the guiding bracket, and the rotation center line of the guiding bracket is a vertical line.
6. The method for preventing the scratch of the leg part of the angle iron as claimed in claim 5, wherein the guide rollers are vertically arranged, the guide rollers are cylindrical, the outer circular surfaces of the guide rollers are cylindrical surfaces, and the axes of the guide rollers are parallel to the rotation center line of the guide bracket.
7. The method for preventing the scratch of the leg part of the angle iron as claimed in claim 6, wherein a plurality of guide rollers are provided, all the guide rollers are arranged in sequence along the length direction of the guide bracket, and the guide rollers can be inserted into the gap between two adjacent rollgang.
8. The method for preventing the scratch of the leg part of the angle iron as claimed in claim 5, wherein the height adjusting mechanism comprises a height adjusting actuator connected with the guide bracket, the height adjusting actuator is a hydraulic cylinder, and the height adjusting actuator is positioned above the guide bracket.
9. The method for preventing the scratch of the leg part of the angle iron as claimed in claim 5, wherein the angle adjusting mechanism comprises an angle adjusting actuator connected with the guide bracket, and the angle adjusting actuator is a hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010340366.9A CN111532733B (en) | 2020-04-26 | 2020-04-26 | Method for preventing leg of angle steel from being scratched |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010340366.9A CN111532733B (en) | 2020-04-26 | 2020-04-26 | Method for preventing leg of angle steel from being scratched |
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| Publication Number | Publication Date |
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| CN111532733A CN111532733A (en) | 2020-08-14 |
| CN111532733B true CN111532733B (en) | 2021-06-15 |
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| CN202010340366.9A Active CN111532733B (en) | 2020-04-26 | 2020-04-26 | Method for preventing leg of angle steel from being scratched |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912885A (en) * | 2010-08-11 | 2010-12-15 | 马鞍山钢铁股份有限公司 | Section mill rolled piece end bending monitoring device and method |
| KR101257470B1 (en) * | 2011-05-30 | 2013-04-23 | 현대제철 주식회사 | Inducement device of strip |
| CN203155720U (en) * | 2013-01-28 | 2013-08-28 | 扬州龙川钢管有限公司 | Guiding device of exit of seamless steel tube rolling mill |
| KR20130111140A (en) * | 2012-03-29 | 2013-10-10 | 현대제철 주식회사 | Pinch roll of accelerated cooling zone |
| JP2013240829A (en) * | 2012-04-27 | 2013-12-05 | Nippon Steel & Sumitomo Metal Corp | Device for guiding threading on hot rolling line |
| CN203356220U (en) * | 2013-06-21 | 2013-12-25 | 宝山钢铁股份有限公司 | Direct insertion fixing type roller table guide frame |
| CN204568169U (en) * | 2015-01-30 | 2015-08-19 | 四川烟草工业有限责任公司 | For the self-adapting type erecting frame that cigarette bar box-missing detects |
| CN109500101A (en) * | 2018-12-24 | 2019-03-22 | 中冶南方工程技术有限公司 | Device is led in a kind of side |
-
2020
- 2020-04-26 CN CN202010340366.9A patent/CN111532733B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912885A (en) * | 2010-08-11 | 2010-12-15 | 马鞍山钢铁股份有限公司 | Section mill rolled piece end bending monitoring device and method |
| KR101257470B1 (en) * | 2011-05-30 | 2013-04-23 | 현대제철 주식회사 | Inducement device of strip |
| KR20130111140A (en) * | 2012-03-29 | 2013-10-10 | 현대제철 주식회사 | Pinch roll of accelerated cooling zone |
| JP2013240829A (en) * | 2012-04-27 | 2013-12-05 | Nippon Steel & Sumitomo Metal Corp | Device for guiding threading on hot rolling line |
| CN203155720U (en) * | 2013-01-28 | 2013-08-28 | 扬州龙川钢管有限公司 | Guiding device of exit of seamless steel tube rolling mill |
| CN203356220U (en) * | 2013-06-21 | 2013-12-25 | 宝山钢铁股份有限公司 | Direct insertion fixing type roller table guide frame |
| CN204568169U (en) * | 2015-01-30 | 2015-08-19 | 四川烟草工业有限责任公司 | For the self-adapting type erecting frame that cigarette bar box-missing detects |
| CN109500101A (en) * | 2018-12-24 | 2019-03-22 | 中冶南方工程技术有限公司 | Device is led in a kind of side |
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| Publication number | Publication date |
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| CN111532733A (en) | 2020-08-14 |
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