CN113877988A - Roll bending adjusting device of straightening machine - Google Patents
Roll bending adjusting device of straightening machine Download PDFInfo
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- CN113877988A CN113877988A CN202111197798.XA CN202111197798A CN113877988A CN 113877988 A CN113877988 A CN 113877988A CN 202111197798 A CN202111197798 A CN 202111197798A CN 113877988 A CN113877988 A CN 113877988A
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- height difference
- straightener
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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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
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Abstract
The invention discloses a bending roll adjusting device of a straightening machine, which comprises adjusting units and a control system, wherein the adjusting units are uniformly distributed along the width direction of the straightening machine and used for adjusting the pressing-in depth of a straightening roll at the position, and the control system is used for independently and integrally controlling all the adjusting units; the adjusting unit comprises a motor, a screw rod, a left sliding block, a right sliding block, a lower guide groove, a left inclined wedge, a right inclined wedge and a top plate, the motor is used for driving the screw rod, the left sliding block and the right sliding block are both supported on the lower guide groove in a sliding mode and are sleeved on two sections of reverse threads of the screw rod in a matching mode symmetrically, the left inclined wedge and the right inclined wedge are installed on the left sliding block and the right sliding block respectively, the top plate is supported on the left inclined wedge and the right inclined wedge through an upper left inclined guide groove and an upper right inclined guide groove in the lower portion in a sliding mode respectively, and the top plate is used for supporting a supporting roller bearing seat. The strip shape straightening machine can be adjusted locally in a segmented mode or integrally, can be adjusted in real time with load, and can improve the strip shape improving capacity of the straightening machine.
Description
Technical Field
The invention belongs to the field of strip steel finishing, and particularly relates to a bending roll adjusting device of a straightening machine.
Background
The strip steel needs to be straightened when being finished, for the strip steel with poor local plate shape, in order to eliminate defects, the increase of the pressing depth can bring about the adverse effects of increased force and energy parameters, increased energy consumption, deteriorated surface quality and the like, while the existing straightening machine can only be integrally adjusted, has weak adjusting capability, can not be adjusted in real time with load, and can not adapt to continuous and adjustable straightening working conditions.
Disclosure of Invention
The invention aims to provide a bending roll adjusting device of a straightening machine, which can be used for sectional local adjustment or integral adjustment, can be used for carrying load and adjusting in real time, and can improve the capability of the straightening machine for improving the shape of a plate.
The technical scheme adopted by the invention is as follows:
a bending roll adjusting device of a straightening machine comprises adjusting units and a control system, wherein the adjusting units are uniformly distributed in the width direction of the straightening machine and used for adjusting the pressing-in depth of a straightening roll at the position, and the control system is used for independently and integrally controlling all the adjusting units; the adjusting unit comprises a motor, a screw rod, a left sliding block, a right sliding block, a lower guide groove, a left inclined wedge, a right inclined wedge and a top plate, the motor is used for driving the screw rod, the left sliding block and the right sliding block are both supported on the lower guide groove in a sliding mode and are sleeved on two sections of reverse threads of the screw rod in a matching mode symmetrically, the left inclined wedge and the right inclined wedge are installed on the left sliding block and the right sliding block respectively, the top plate is supported on the left inclined wedge and the right inclined wedge through an upper left inclined guide groove and an upper right inclined guide groove in the lower portion in a sliding mode respectively, and the top plate is used for supporting a supporting roller bearing seat.
Furthermore, the odd number of the adjusting units is adopted, one of the adjusting units is positioned on the width center of the straightener and is a center adjusting unit, the rest adjusting units are symmetrical about the width center of the straightener, and the step of determining the pressing depth of each adjusting unit is as follows:
s1, on the premise of not damaging equipment, setting a relative maximum height difference according to the size of a straightener, wherein the relative maximum height difference is the maximum height difference between two adjacent supporting rollers, on the premise of not damaging a working roller bearing, setting a maximum outer side height difference according to the size of the straightener, the maximum outer side height difference is the maximum height difference between the outermost supporting roller and the adjacent supporting roller, setting a deflection rate according to the steepness degree of strip steel at the width center of the straightener, the steeper value is larger, the value is 0-100%, and determining the maximum pressing depth of the width center of the straightener according to the relative maximum height difference, the maximum outer side height difference and the deflection rate;
s2, setting the pressing depth of the central adjusting unit according to the deviation height of the strip steel at the width center of the straightener and ensuring that the pressing depth is smaller than the maximum pressing depth, and then sequentially determining the pressing depth of the other adjusting units from the width center of the straightener to the edge according to the relative maximum height difference and the deflection curvature.
Further, assuming that the relative maximum height difference is max.diff, the maximum outside height difference is max.diff outside, the deflection rate is profile, and the number of adjustment units is N, the maximum press-in depth is max.diff outside +0.5 (N-1) profile max.
Further, let the pressing depth of the central adjusting unit be diff (0), the pressing depths of the other adjusting units be diff (i), where i is the hierarchy of the adjusting unit from the central adjusting unit, the nearest is 1 level, the next is 2 levels, and so on, let the relative maximum height difference be max.diff, the deflection rate be profile, and let a be diff (0) -i × profile max.diff, then a be not less than 0 when diff (i) is a, and a be less than 0 when diff (i) is 0.
Furthermore, the press-in depth of each adjusting unit is set on a control panel of the control system, the current set value is recorded as bending curve data in a graphic mode and is selected and stored according to the actual effect, and the control panel can call the stored bending curve.
Further, the support roller bearing seat is supported on the top plate through a plurality of jacks.
Further, the end of the lead screw is matched with an encoder, and the encoder feeds back the rotation angle of the lead screw to the control system.
Further, the direction of the lead screw is parallel to the length direction of the straightening machine.
Further, the motor is connected with the screw rod through a coupler.
Further, the motor adopts a gear motor.
The invention has the beneficial effects that:
during operation, the motor drives the left inclined wedge and the right inclined wedge to be synchronously close to or away from each other through the screw rod, the left sliding block and the right sliding block, the left inclined wedge and the right inclined wedge respectively push the force of the upper left inclined guide groove and the upper right inclined guide groove to act on the top plate together, the top plate drives the supporting roller bearing seat to lift, and therefore adjustment of the pressing-in depth of the straightening roller is achieved.
Drawings
FIG. 1 is a schematic diagram of the distribution of the adjusting units according to the embodiment of the present invention.
FIG. 2 is a schematic view of the installation of a single adjustment unit in an embodiment of the present invention, with the work rolls omitted for ease of viewing.
FIG. 3 is a graph showing data on the curve of the bending rolls of a steel strip having a deflection height of 0.5mm and a deflection rate of 10% at the center of the width of a leveler.
FIG. 4 is a graph showing data on the curve of the bending rolls of a steel strip at the center of the width of the leveler, the deviation height of which was 0.5mm, and the bending rate of which was 70%.
FIG. 5 is a graph of roll bending curve data in an embodiment of the present invention.
In the figure: 1-a work roll bearing; 2-working roll bearing seats; 3-an adjustment unit; 301-a plug; 302-a top plate; 303-an encoder; 304-upper left inclined guide slot; 305-left slider; 306-lower guide groove; 307-left slanting wedge; 308-right inclined wedge; 309-upper right inclined guide groove; 310-right slider; 311-a lead screw; 312-a coupling; 313-a motor mount; 314-a motor; 4-strip steel; 5-straightening roller; 6, supporting rollers; and 7-supporting the roller bearing seat.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 and 2, the bending roll adjusting device of the straightener comprises adjusting units 3 and a control system, wherein the adjusting units 3 are uniformly distributed along the width direction of the straightener and used for adjusting the pressing depth of the straightening rolls 5 at the positions, and the control system is used for independently and integrally controlling all the adjusting units 3; the adjusting unit 3 comprises a motor 314, a lead screw 311, a left slider 305, a right slider 310, a lower guide groove 306, a left wedge 307, a right wedge 308 and a top plate 302, wherein the motor 314 is used for driving the lead screw 311, the left slider 305 and the right slider 310 are both slidably supported on the lower guide groove 306 and are respectively and symmetrically sleeved on two sections of reverse threads of the lead screw 311 in a matched manner, the left wedge 307 and the right wedge 308 are respectively installed on the left slider 305 and the right slider 310, the top plate 302 is slidably supported on the left wedge 307 and the right wedge 308 through an upper left inclined guide groove 304 and an upper right inclined guide groove 309 on the lower portion, and the top plate 302 is used for providing support for the support roller bearing seat 7. When the straightening machine works, the motor 314 drives the left inclined wedge 307 and the right inclined wedge 308 to synchronously approach or synchronously depart from through the screw rod 311, the left sliding block 305 and the right sliding block 310, the left inclined wedge 307 and the right inclined wedge 308 respectively push the force of the upper left inclined guide groove 304 and the force of the upper right inclined guide groove 309 to jointly act on the top plate 302, the top plate 302 drives the supporting roller bearing seat 7 to lift, so that the pressing-in depth of the straightening roller 5 is adjusted, under the action of a control system, the sectional local adjustment or the integral adjustment can be realized, the pressing-in depth can be increased or reduced in a targeted manner, the loading can be adjusted in real time, the controllable additional bending acts on the straightening roller 5, the middle wave or edge wave on the strip steel 4 can be eliminated, and the capability of the straightening machine for improving the plate shape can be greatly improved.
As shown in FIGS. 1 and 2, in the present embodiment, the direction of the screw 311 is parallel to the longitudinal direction of the leveler, and the installation of the adjustment unit 3 is facilitated.
As shown in fig. 2, in the present embodiment, the support roller housing 7 is supported on the top plate 302 by a plurality of heads 301. The plug 301 can conveniently adjust the distance in the height direction, reduce the total weight and disperse the stress.
As shown in fig. 2, in the present embodiment, the end of the lead screw 311 is engaged with the encoder 303, and the encoder 303 feeds back the rotation angle of the lead screw 311 to the control system, so that the precise rotation angle can be obtained and the control precision can be improved.
As shown in fig. 2, in the present embodiment, the motor 314 is connected to the lead screw 311 through a coupling 312.
As shown in fig. 2, in the present embodiment, the motor 314 is a gear motor.
In this embodiment, the press-in depth of each adjusting unit 3 is set on a control panel of the control system, the current set value is graphically recorded as the bending curve data and is selectively stored according to the actual effect, and the control panel can call the stored bending curve, thereby facilitating human-computer interaction and operation.
The number of the adjusting units 3 is odd, in this embodiment, the number of the adjusting units 3 is 7 (or 5 or other numbers can be used according to actual needs), one of the adjusting units is located in the center of the width of the straightener and is the center adjusting unit 3, the rest adjusting units are symmetrical with respect to the center of the width of the straightener, and the step of determining the pressing depth of each adjusting unit 3 is as follows:
s1, on the premise of not damaging equipment, setting a relative maximum height difference according to the size of the straightener, wherein the relative maximum height difference is the maximum height difference between two adjacent supporting rollers 6, on the premise of not damaging a working roller bearing 1, setting a maximum outer side height difference according to the size of the straightener, the maximum outer side height difference is the maximum height difference between the outermost supporting roller 6 and the adjacent supporting roller 6, setting a deflection rate according to the steepness degree of the strip steel 4 at the width center of the straightener, as shown in figures 3 and 4, the steeper value is larger, the value is 0-100%, and determining the maximum pressing depth of the width center of the straightener according to the relative maximum height difference, the maximum outer side height difference and the deflection rate;
s2, setting the pressing depth of the central adjusting unit 3 according to the deviation height of the strip steel 4 at the width center of the straightener and ensuring that the pressing depth is smaller than the maximum pressing depth, and then sequentially determining the pressing depth of the rest adjusting units 3 from the width center of the straightener to the edge according to the relative maximum height difference and the deflection curvature.
Specifically, the method comprises the following steps:
when the relative maximum height difference is max.diff, the maximum outside height difference is max.diff outside, the deflection rate is profile, and the number of adjustment units is N, the maximum press-in depth is max. For example, when N is 7, max.diff is 1mm, max.diff outside is 0.5mm, profile is 60%, there is a maximum depth of indentation max.diff outside +0.5 (N-1)
*profile*Max.diff＝2.3mm。
Let the penetration depth of the central adjusting unit 3 be diff (0), the penetration depths of the other adjusting units 3 be diff (i), where i is the hierarchy of the adjusting unit 3 from the central adjusting unit 3, the nearest is 1 level, the next is 2 levels, and so on, where a ═ diff (0) -i ═ profile ×. diff is set, if a is not less than 0, diff (i) is equal to a, and if a is less than 0, diff (i) is equal to 0. For example, in this embodiment, if the maximum penetration depth is max.diff outside +0.5 × N-1 × profile max.diff outside + 2.9mm and the profile is 80%, if the maximum penetration depth is 2mm to 2.8 × 1, the penetration depth of the adjustment unit 3 of the 1 st stage is 2mm to 0.8 × 1.2mm, the penetration depth of the adjustment unit 3 of the 2 nd stage is 2mm to 0.8 × 0.4mm, and the penetration depth of the adjustment unit 3 of the 3 rd stage is 0, a curve data map of the bending roll is shown in fig. 5.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a straightener roll bending adjusting device which characterized in that: the straightening machine comprises adjusting units and a control system, wherein the adjusting units are uniformly distributed along the width direction of the straightening machine and are used for adjusting the pressing-in depth of a straightening roll at the position, and the control system is used for independently and integrally controlling all the adjusting units; the adjusting unit comprises a motor, a screw rod, a left sliding block, a right sliding block, a lower guide groove, a left inclined wedge, a right inclined wedge and a top plate, the motor is used for driving the screw rod, the left sliding block and the right sliding block are both supported on the lower guide groove in a sliding mode and are sleeved on two sections of reverse threads of the screw rod in a matching mode symmetrically, the left inclined wedge and the right inclined wedge are installed on the left sliding block and the right sliding block respectively, the top plate is supported on the left inclined wedge and the right inclined wedge through an upper left inclined guide groove and an upper right inclined guide groove in the lower portion in a sliding mode respectively, and the top plate is used for supporting a supporting roller bearing seat.
2. The roll bending adjusting device of the straightener as claimed in claim 1, wherein: the odd number of the adjusting units is adopted, one of the adjusting units is positioned on the width center of the straightener and is a center adjusting unit, the rest adjusting units are symmetrical about the width center of the straightener, and the step of determining the pressing depth of each adjusting unit is as follows:
s1, on the premise of not damaging equipment, setting a relative maximum height difference according to the size of a straightener, wherein the relative maximum height difference is the maximum height difference between two adjacent supporting rollers, on the premise of not damaging a working roller bearing, setting a maximum outer side height difference according to the size of the straightener, the maximum outer side height difference is the maximum height difference between the outermost supporting roller and the adjacent supporting roller, setting a deflection rate according to the steepness degree of strip steel at the width center of the straightener, the steeper value is larger, the value is 0-100%, and determining the maximum pressing depth of the width center of the straightener according to the relative maximum height difference, the maximum outer side height difference and the deflection rate;
s2, setting the pressing depth of the central adjusting unit according to the deviation height of the strip steel at the width center of the straightener and ensuring that the pressing depth is smaller than the maximum pressing depth, and then sequentially determining the pressing depth of the other adjusting units from the width center of the straightener to the edge according to the relative maximum height difference and the deflection curvature.
3. The roll bending adjusting device of the leveler as set forth in claim 2, wherein: when the relative maximum height difference is max.diff, the maximum outside height difference is max.diff outside, the deflection rate is profile, and the number of adjustment units is N, the maximum press-in depth is max.
4. The roll bending adjusting device of the leveler as set forth in claim 2, wherein: setting the pressing depth of the central adjusting unit as diff (0), the pressing depth of the other adjusting units as diff (i), wherein i is the level of the adjusting unit from the central adjusting unit, the nearest is 1 level, the next is 2 levels, and so on, setting the relative maximum height difference as Max, diff and the deflection rate as profile, and setting A as diff (0)
Diff, (i) ═ a when a is not less than 0, diff (i) ═ 0 when a is less than 0.
5. The roll bending adjusting device of the straightener as claimed in claim 1, wherein: the press-in depth of each adjusting unit is set on a control panel of the control system, the current set value is recorded as bending curve data in a graphic mode and is selected and stored according to the actual effect, and the control panel can call the stored bending curve.
6. The roll bending adjusting apparatus of the leveler as set forth in any one of claims 1 to 5, wherein: the supporting roller bearing seat is supported on the top plate through a plurality of jacks.
7. The roll bending adjusting apparatus of the leveler as set forth in any one of claims 1 to 5, wherein: the end part of the lead screw is matched with an encoder, and the encoder feeds back the rotation angle of the lead screw to the control system.
8. The roll bending adjusting apparatus of the leveler as set forth in any one of claims 1 to 5, wherein: the direction of the screw rod is parallel to the length direction of the straightening machine.
9. The roll bending adjusting apparatus of the leveler as set forth in any one of claims 1 to 5, wherein: the motor is connected with the screw rod through a coupler.
10. The roll bending adjusting apparatus of the leveler as set forth in any one of claims 1 to 5, wherein: the motor adopts a gear motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111197798.XA CN113877988A (en) | 2021-10-14 | 2021-10-14 | Roll bending adjusting device of straightening machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111197798.XA CN113877988A (en) | 2021-10-14 | 2021-10-14 | Roll bending adjusting device of straightening machine |
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| US4454738A (en) * | 1981-06-29 | 1984-06-19 | The Paxson Machine Company | Roller leveler and method of operating same |
| DE3700555A1 (en) * | 1987-01-10 | 1988-07-21 | Schloemann Siemag Ag | LEVELING MACHINE FOR SHEETS AND TAPES |
| RU2235612C1 (en) * | 2003-05-27 | 2004-09-10 | Открытое акционерное общество "Северсталь" | Roll mounting mechanism |
| EP1491270A1 (en) * | 2003-06-25 | 2004-12-29 | Kohler Maschinenbau GmbH | Leveling machine |
| CN1843647A (en) * | 2005-12-12 | 2006-10-11 | 太原市通泽成套设备有限公司 | Multi-roller steel plate-flattening machine |
| CN200954525Y (en) * | 2006-07-28 | 2007-10-03 | 中信重型机械公司 | Short support roller, arc oblique-wedge for adjusting operation roller convexity mechanism under straightening machine |
| CN203235754U (en) * | 2013-05-17 | 2013-10-16 | 太原重工股份有限公司 | Lifting device of main mill stand |
| CN203599285U (en) * | 2013-12-24 | 2014-05-21 | 北京京诚之星科技开发有限公司 | Variable roller spacing straightener |
| CN204817474U (en) * | 2015-07-02 | 2015-12-02 | 洛阳理工学院 | A adjusting device for adjusting roll gap |
| CN111558631A (en) * | 2020-04-22 | 2020-08-21 | 中国重型机械研究院股份公司 | Novel roller bending device of roller straightening machine and control method thereof |
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2021
- 2021-10-14 CN CN202111197798.XA patent/CN113877988A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU995929A1 (en) * | 1981-04-03 | 1983-02-15 | Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт | Tube cold rolling mill screwdown apparatus |
| US4454738A (en) * | 1981-06-29 | 1984-06-19 | The Paxson Machine Company | Roller leveler and method of operating same |
| DE3700555A1 (en) * | 1987-01-10 | 1988-07-21 | Schloemann Siemag Ag | LEVELING MACHINE FOR SHEETS AND TAPES |
| RU2235612C1 (en) * | 2003-05-27 | 2004-09-10 | Открытое акционерное общество "Северсталь" | Roll mounting mechanism |
| EP1491270A1 (en) * | 2003-06-25 | 2004-12-29 | Kohler Maschinenbau GmbH | Leveling machine |
| CN1843647A (en) * | 2005-12-12 | 2006-10-11 | 太原市通泽成套设备有限公司 | Multi-roller steel plate-flattening machine |
| CN200954525Y (en) * | 2006-07-28 | 2007-10-03 | 中信重型机械公司 | Short support roller, arc oblique-wedge for adjusting operation roller convexity mechanism under straightening machine |
| CN203235754U (en) * | 2013-05-17 | 2013-10-16 | 太原重工股份有限公司 | Lifting device of main mill stand |
| CN203599285U (en) * | 2013-12-24 | 2014-05-21 | 北京京诚之星科技开发有限公司 | Variable roller spacing straightener |
| CN204817474U (en) * | 2015-07-02 | 2015-12-02 | 洛阳理工学院 | A adjusting device for adjusting roll gap |
| CN111558631A (en) * | 2020-04-22 | 2020-08-21 | 中国重型机械研究院股份公司 | Novel roller bending device of roller straightening machine and control method thereof |
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