CN106270013A - A kind of section bar dynamic draught straightener and method - Google Patents
A kind of section bar dynamic draught straightener and method Download PDFInfo
- Publication number
- CN106270013A CN106270013A CN201610653422.8A CN201610653422A CN106270013A CN 106270013 A CN106270013 A CN 106270013A CN 201610653422 A CN201610653422 A CN 201610653422A CN 106270013 A CN106270013 A CN 106270013A
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- China
- Prior art keywords
- section bar
- straightener
- smoothing roll
- control system
- positioning support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Wire Processing (AREA)
Abstract
The present invention provides a kind of section bar dynamic draught straightener and method, belongs to section steel straightening technical field.This device includes two positioning support element, a pressure unit and control system；Method for aligning measures and obtains series of points coordinate for geometrical curve initial to section bar, coordinate is used to be calculated the initial bending curvature of section bar each position, obtain the Bent mirror of section bar each position coordinate according to initial bending curvature estimation, straightening process is dynamically adjusted the position of smoothing roll in pressure unit by control system according to the Bent mirror of section bar feed speed and each position coordinate section bar is aligned.
Description
Technical field
The present invention relates to section steel straightening technical field, particularly relate to a kind of section bar dynamic draught straightener and method.
Background technology
Need to carry out the product forms aligned diverse location along its length and often there is the initial of different curvature
Bending defect, the main technique thinking of existing method for aligning and equipment thereof is: use the replaceable straightening roller system being made up of many smoothing rolls,
Section bar is made to experience the repeatedly continuous elastoplasticity recurvation process that bending curvature is descending in straightening process.Pass through in aligning early stage
The BENDING PROCESS of greater curvature makes the initial imperfection unification of section bar each position different curvature be single curvature defect, then by follow-up
Repeatedly BENDING PROCESS make single curvature defect be gradually reduced to flatten.
It can be seen that use this straightening process thinking, in order to make the different initial imperfections of section bar each position obtain preferably
Unification, its early stage must use bigger Bent mirror that section bar carries out the bending of unified deep camber；On the one hand this easily make to break
The poor thin-wall section of face stability occurs that section distorts in deep camber BENDING PROCESS, on the other hand also can greatly increase strong
The service load of straight equipment, adds the requirement to equipment for straightening bearing capacity.Moreover, mould to realize repeatedly continuously bullet
Property recurvation process, equipment for straightening must also be equipped with the complicated replaceable straightening roller system being made up of many smoothing rolls, this make tradition aligning set
Standby is bulky, and the design of its system such as transmission, carrying all becomes extremely complex.
It addition, along with the modern detecting extensively application in section bar manufacture process is with ripe, every root type material is each before rectifying
The initial imperfection data of position can gather acquisition by multiple technologies means efficiently, and these data are at existing aligning
Fail to be fully utilized to improve its straightening process under technique and appointed condition.Meanwhile, the main dress in existing metallurgical industry
All have been achieved with being adjusted the dynamic draught energy of depressing position in real time by control system according to supplied materials state for such as milling train, conticaster
Power, and align the pattern having been used up fixing pressure as the Core equipment of finishing process of equipping, this is mainly due to existing
The frame for movement of multiple roll aligning equipment is excessively complicated and controllable parameter is too much so that the dynamically side of adjustment of the Bent mirror in straightening process
Case is difficult to.
Chinese patent Authorization Notice No. CN104550326B discloses a kind of periodic longitudinal variable-thickness straightener, and it carries
Go out the straightener of a kind of dynamic adjustment pressure, but it still has been based on existing multi-roll straightening machine, and it has dynamically adjusted pressure position
The purpose put is the different-thickness problem for periodic variable-thickness sheet material, does not have for the aligning of bending defect and generally anticipates
Justice.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of section bar dynamic draught straightener and method,
This device includes two positioning support element, a pressure unit and control system；Pressure unit is positioned at whole dress
Putting middle part, two positioning support element lay respectively at both sides before and after pressure unit, and control system controls location by controlling circuit
Support unit and pressure unit；
Wherein, positioning support element includes that upper and lower two location support roller；Pressure unit includes smoothing roll and pressure dress
Putting, smoothing roll is upper and lower two, and each smoothing roll back connects a screwdown gear.
In straightening process, passed through between two relative smoothing rolls by strong section bar.
Two positioning support element support the opening degree of roller according to being rectified in the position of section bar direction of feed and two location
The specification regulation of section bar.
Two smoothing rolls can be controlled its screwdown gear each connected by control system and realize individually adjusting vertical position.
It is driven voller that location supports roller, and two location support roller opening degree and determine according to by strong section bar depth of section, make two
Individual location supports roll-in and leans against Surface of profile and can rotate with the feeding of section bar；Location supports and compiles equipped with photoelectricity in roller rotating shaft
Code device, for measuring by the real-time feed speed of strong shaped steel.
Upper and lower two smoothing rolls are drive roll, driving means drive smoothing roll to rotate, and driven by strong type by smoothing roll
Material realizes the continuous feed in straightening process.
Use this device to carry out section steel straightening, comprise the steps:
(1) according to section bar specification and working condition, the lengthwise position and the smoothing roll that set two positioning support element drive
Speed；
(2) measurement apparatus geometrical curve initial to section bar is used to measure, it is thus achieved that the most a series of n the point of section bar
Position coordinates (x1,y1), (x2,y2)……(xn,yn), wherein, n >=3；
(3) according to the position coordinates obtained, it is calculated the initial bending curvature of each coordinate position of section bar
(4) according to the Bent mirror needed for the initial bending each coordinate position of curvature estimation section bar
And transmit to control system；
(5) section bar starts aligning, smoothing roll drive by strong section bar feeding according to the actuating speed set, by location
Support roller measures by the actual feed of strong section bar real-time Transmission to control system；Control system is according to by strong section bar feeding speed
Degree determines is rectified the real-time coordinates position of section bar at smoothing roll, dynamically adjusts two according to real-time coordinates position control screwdown gear
The vertical position of smoothing roll, reaches the Bent mirror needed for this coordinate position.
Having the beneficial effect that of the technique scheme of the present invention:
(1) on the basis of accurately measuring section bar each position bending defect, set for section bar particular location bending curvature
Bend Bent mirror dynamically, make section bar i.e. can be aligned through an elasto bending.This avoids tradition method for aligning
The deep camber bending unifying initial imperfection and must carry out, makes the section aberration problems during section steel straightening be improved, with
Time also greatly reduce the load that straightener is subjected to；
(2) using the device of simple in construction to complete to align operation, the complexity being compared to many smoothing roll compositions of tradition is rectified
Straight roller system, effectively reduces volume and the complexity of straightener；Then transmission and carrying structure can correspondingly be simplified
Design, make the rigidity of straightener be easier to be enhanced, leveling effect is more preferable.
Accompanying drawing explanation
Fig. 1 is the section bar dynamic draught straightener structural representation of the present invention；
Fig. 2 is the method for aligning flow chart of the present invention；
Fig. 3 is the schematic diagram of the laser scanning inspection section bar curve of the embodiment of the present invention；
Fig. 4 is the section bar initial bending curvature schematic diagram before the present invention rectifys；
Fig. 5 is that straightener of the present invention adjusts mode schematic diagram；
Fig. 6 is straightening process schematic diagram of the present invention.
Wherein: 1-laser scanning device；2-is rectified section bar；3-detects light beam；The initial geometrical curve of 4-；5-depresses unit；
6-positioning support element；7-control system；8-location supports roller；9-screwdown gear；10-smoothing roll；11-controls circuit.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of section bar dynamic draught straightener and method.
As it is shown in figure 1, in this device, pressure unit 5 is positioned in the middle part of whole device, two positioning support element 6 positions respectively
Both sides before and after pressure unit 5, control system 7 controls positioning support element 6 and pressure unit 5 by controlling circuit 11；
Wherein, positioning support element 6 includes that upper and lower two location support roller 8；Pressure unit 5 includes smoothing roll 10 and pressure
Lower device 9, smoothing roll 10 is upper and lower two, and each smoothing roll 10 back connects a screwdown gear 9.
Two smoothing rolls 10 are controlled its screwdown gear 9 each connected by control system 7 and realize individually adjusting vertical position.
It is driven voller that location supports roller 8, and location supports in roller 8 rotating shaft equipped with photoelectric encoder.Smoothing roll 10 is drive roll, driving fill
Putting driving smoothing roll 10 to rotate, smoothing roll 10 drives the continuous feed being realized in straightening process by strong section bar 2.
It is explained below in conjunction with concrete straightening process.
As a example by the section bar dynamic draught straightening process of rectangular cross section, its aligning flow process is as shown in Figure 2.First according to section bar
The ability to work of specification and straightener sets positioning support element 6 and fore-and-aft distance and the actuating speed depressing unit 5.Again
Laser scanning device 1 is used to obtain by the initial geometrical curve 4 of strong section bar 2 upper surface center line by detection light beam 3, it is thus achieved that wherein
The discrete coordinates data of line series of points, as shown in Figure 3；Discrete coordinates data are processed, asks curvature method to obtain by 3
To the initial bending curvature of each coordinate position, i.e. according to the coordinate position at this and the coordinate position at front and back 2 places 3 true
A fixed circle, this radius of circle is this curvature, as shown in Figure 4；Each coordinate position needs are calculated according to original curved everywhere
Bent mirror, detailed process is as follows:
If a width of B of rectangular cross section section bar, height is H, and elastic modelling quantity is E, and yield limit is σs, initial bending curvature isPositioning support element is L with the fore-and-aft distance of pressure unit, and after making to rectify, section bar is straight, required contraflexure
RateAnd Bent mirrorNeed to meet equation:
Calculate needed for each coordinate position Bent mirror according to above formula and be sent to control system 7；
Finally, section bar starts aligning.As it is shown in figure 5, first by upper and lower two of two positioning support element 6 of straightener
Location supports roller 8 opening degree and is adjusted to maximum, upper and lower for pressure unit 5 two smoothing rolls 10 is also adjusted to opening degree maximum, will be rectified
Straightener sent into by section bar 2；Thereafter adjusting location support roller 8 opening degree makes it be pressed against by strong section bar 2 surface；Further according to aligning
Roller is reached the press-bending needed for this position by the position of the initial coordinate position upper and lower smoothing roll 10 of adjustment of strong section bar 2 10 times
Amount；Driven by the feeding of strong section bar 2 according to the actuating speed set by smoothing roll 10, location support roller 8 and measure by strong section bar 2
Actual feed real-time Transmission are to control system 7；Control system 7 is determined aligning by following the tracks of by strong section bar 2 feed speed
Rectified the real-time coordinates position of section bar 2 at roller 10, dynamically adjusted two smoothing rolls according to real-time coordinates position control screwdown gear 9
The vertical position of 10, meets the Bent mirror needed for this coordinate position in real time.Detailed process is as shown in Figure 6.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of without departing from principle of the present invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (7)
1. a section bar dynamic draught straightener, it is characterised in that: include that two positioning support element (6), a pressure are single
Unit (5) and control system (7)；Pressure unit (5) is positioned in the middle part of whole device, and two positioning support element (6) lay respectively at pressure
Both sides before and after lower unit (5), control system (7) controls positioning support element (6) and pressure unit by controlling circuit (11)
(5)；
Wherein, positioning support element (6) includes that upper and lower two location support roller (8)；Pressure unit (5) includes smoothing roll (10)
And screwdown gear (9), smoothing roll (10) is upper and lower two, and each smoothing roll (10) back connects a screwdown gear (9).
Section bar dynamic draught straightener the most according to claim 1, it is characterised in that: described by strong section bar (2) from phase
To two smoothing rolls (10) between pass through.
Section bar dynamic draught straightener the most according to claim 1, it is characterised in that: said two positioning support element
(6) opening degree of roller (8) is supported according to by the specification regulation of strong section bar (2) in the position of section bar direction of feed and two location.
Section bar dynamic draught straightener the most according to claim 1, it is characterised in that: said two smoothing roll (10) by
Control system (7) controls its screwdown gear each connected (9) and realizes individually adjusting vertical position.
Section bar dynamic draught straightener the most according to claim 1, it is characterised in that: described location supports roller (8) and is
Driven voller, location supports in roller (8) rotating shaft equipped with photoelectric encoder.
Section bar dynamic draught straightener the most according to claim 1, it is characterised in that: described smoothing roll (10) is actively
Roller, is driven smoothing roll (10) to rotate by driving means, smoothing roll (10) drive by strong section bar (2) realize in straightening process continuous
Feeding.
7. use the method that the section bar dynamic draught straightener described in claim 1 carries out section steel straightening, it is characterised in that: bag
Include following steps:
(1) according to section bar specification and working condition, lengthwise position and the smoothing roll (10) of two positioning support element (6) is set
Actuating speed；
(2) measurement apparatus geometrical curve initial to section bar (4) is used to measure, it is thus achieved that the position of the most a series of n the point of section bar
Put coordinate (x1,y1), (x2,y2)……(xn,yn), wherein, n >=3；
(3) according to the position coordinates obtained, it is calculated the initial bending curvature of each coordinate position of section bar
(4) according to the Bent mirror needed for the initial bending each coordinate position of curvature estimation section bar And
Transmit to control system (7)；
(5) section bar starts aligning, smoothing roll (10) drive by strong section bar (2) feeding according to the actuating speed set, by positioning
Support roller (8) to measure by the actual feed of strong section bar (2) real-time Transmission to control system (7)；Control system (7) basis
Determined that the real-time coordinates position of section bar (2) is rectified, according to real-time coordinates position by smoothing roll (10) place by strong section bar (2) feed speed
Control screwdown gear (9) and dynamically adjust the vertical position of two smoothing rolls (10), reach the Bent mirror needed for this coordinate position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610653422.8A CN106270013B (en) | 2016-08-10 | 2016-08-10 | A kind of profile dynamic draught straightener and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610653422.8A CN106270013B (en) | 2016-08-10 | 2016-08-10 | A kind of profile dynamic draught straightener and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106270013A true CN106270013A (en) | 2017-01-04 |
| CN106270013B CN106270013B (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610653422.8A Active CN106270013B (en) | 2016-08-10 | 2016-08-10 | A kind of profile dynamic draught straightener and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261748A (en) * | 2018-09-19 | 2019-01-25 | 上海理工大学 | A kind of straightener rolling schedule regulating system and method based on rolling schedule parameter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6029485A (en) * | 1997-11-17 | 2000-02-29 | Sms Schloeman-Siemag Aktiengesellschaft | Roller levelling machine for levelling a rolled section |
| CN2396905Y (en) * | 1999-07-02 | 2000-09-20 | 王岳云 | Variable roll spacing steel plate straightener |
| CN1411925A (en) * | 2001-10-19 | 2003-04-23 | 中国第二重型机械集团公司 | Plate and band material roll gap adjustable flattening machine |
| CN105290110A (en) * | 2015-12-04 | 2016-02-03 | 中冶南方工程技术有限公司 | Compound straightener for cold and hard strip steel |
| CN105344751A (en) * | 2015-12-15 | 2016-02-24 | 东北大学 | Compound straightening roll system device and flexible straightening method for cold rolling different-thickness plates |
-
2016
- 2016-08-10 CN CN201610653422.8A patent/CN106270013B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6029485A (en) * | 1997-11-17 | 2000-02-29 | Sms Schloeman-Siemag Aktiengesellschaft | Roller levelling machine for levelling a rolled section |
| CN2396905Y (en) * | 1999-07-02 | 2000-09-20 | 王岳云 | Variable roll spacing steel plate straightener |
| CN1411925A (en) * | 2001-10-19 | 2003-04-23 | 中国第二重型机械集团公司 | Plate and band material roll gap adjustable flattening machine |
| CN105290110A (en) * | 2015-12-04 | 2016-02-03 | 中冶南方工程技术有限公司 | Compound straightener for cold and hard strip steel |
| CN105344751A (en) * | 2015-12-15 | 2016-02-24 | 东北大学 | Compound straightening roll system device and flexible straightening method for cold rolling different-thickness plates |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261748A (en) * | 2018-09-19 | 2019-01-25 | 上海理工大学 | A kind of straightener rolling schedule regulating system and method based on rolling schedule parameter |
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| Publication number | Publication date |
|---|---|
| CN106270013B (en) | 2019-03-29 |
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