CA2572489A1 - Directional drive - Google Patents

Directional drive Download PDF

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Publication number
CA2572489A1
CA2572489A1 CA002572489A CA2572489A CA2572489A1 CA 2572489 A1 CA2572489 A1 CA 2572489A1 CA 002572489 A CA002572489 A CA 002572489A CA 2572489 A CA2572489 A CA 2572489A CA 2572489 A1 CA2572489 A1 CA 2572489A1
Authority
CA
Canada
Prior art keywords
rockers
roller
axle
directional drive
rocker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002572489A
Other languages
French (fr)
Other versions
CA2572489C (en
Inventor
Friedrich Moser
Werner Rab
Roland Gatterbauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
Original Assignee
Voest-Alpine Industrieanlagenbau Gmbh & Co
Friedrich Moser
Werner Rab
Roland Gatterbauer
Siemens Vai Metals Technologies Gmbh & Co
Siemens Vai Metals Technologies Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34971095&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2572489(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voest-Alpine Industrieanlagenbau Gmbh & Co, Friedrich Moser, Werner Rab, Roland Gatterbauer, Siemens Vai Metals Technologies Gmbh & Co, Siemens Vai Metals Technologies Gmbh filed Critical Voest-Alpine Industrieanlagenbau Gmbh & Co
Publication of CA2572489A1 publication Critical patent/CA2572489A1/en
Application granted granted Critical
Publication of CA2572489C publication Critical patent/CA2572489C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00Advancing webs
    • B65H20/02Advancing webs by friction roller

Landscapes

  • Body Structure For Vehicles (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Road Paving Machines (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Tyre Moulding (AREA)

Abstract

Directional drives are for example used upstream of coilers in mill stands for coiling up the strip in a defined manner. A first roll (5) that can be placed against a second roll (6) is used to adjust or control the desired strip tension and a lateral deviation of the strip. The directional drive (1) according to the invention has an especially simple design and can be controlled in a very precise manner. For this purpose, the rockers (2, 3) on which the roll (5) which can be placed against the second roll is mounted are separately mounted in a frame (12) so as to be swiveled and can therefore be swiveled independently.

Description

Directional drive The subject of the invention relates to a directional drive with two rollers, a first roller being arranged essentially stationarily and a second roller being arranged so as to be advanceable toward the first roller, and with two pivotable rockers, in which the second roller is arranged, mounted, and on which a pressure medium cylinder is arranged in each case for pivoting the rockers.

Directional drives are used typically in rolling mills, where they are arranged upstream of rolled-strip coilers, in order to set the strip tension upstream of the coiler by means of two rollers. Another task of the directional drive is to prevent lateral creeps of the rolled strip upstream of coiling. For this purpose, a pivotable roller is activated and advanced toward a stationary roller such that, as a result of the position of this roller with respect to the stationary roller, the rolled strip undergoes a desired strip tension and a desired lateral displacement.
Such a directional drive may be gathered, for example, from EP 192 982 B1 or DE 26 15 254 Al, which show a drive, the pivotable roller of which is mounted in a continuous rocker.
The mounting of this roller is movable by means of control cylinders, so that the roller can be moved appropriately via its mounting. However, because of the movable mounting, such a drive has a highly complicated construction.
EP 747 147 B1 shows a directional drive, the pivotable roller of which is mounted in two rockers, on which a pressure medium cylinder engages in each case, and the rockers can thereby be activated separately. The two rockers are connected rigidly to a torsion spring which forms the axis of rotation of the rockers. When the rockers are activated by the pressure medium cylinders, they exert influence on one another, and the spring AMENDED SHEET

PCT/EP2005/006837 - la -constant of the torsion spring always has to be taken into account in the regulation of force. However, the spring constant is not known exactly and, moreover, also changes with the external conditions, for example with the ambient temperature, the material properties of the spring, etc., so that regulation has some inherent inaccuracy.

A bearing unit for an advanceable tension roller may be gathered from EP 1 086 916 A2, consisting of two units fixed rigidly on an axle, a common shaft being advanced in each case by pivoting about further axes. The complex construction and the low stability under high loads are disadvantageous.

The object of the present invention, then, is to specify a directional drive which improves the known prior art, in that it has a simple construction and can be controlled simply and accurately.

This object is achieved by means of a directional drive, in which the rockers are arranged, pivotably mounted on a frame independently of one another.
Due to the separate rockers, the directional drive can have a very simple construction, and AMENDED SHEET

no mutual influencing by interconnecting rockers has to be taken into account, thus making the directional drive controllable very simply and, above all, also accurately.
Particularly advantageously, the rockers are mounted on the frame at one of their ends and the pressure medium cylinder is arranged in each case at the other end, and the mounting of the second roller is arranged between the two ends on the rockers, since this results, inter alia, in beneficial leverages.

A particularly preferred embodiment is obtained in that an axle is arranged, mounted rotatably, on the frame and one of the two rockers is connected rigidly to this axle, and this may be improved even further in that the second rocker is connected pivotably to the axle. Construction is thereby simplified, since only a single axle is required in order to mount the two rockers so as to be rotatable independently of one another.

The functional reliability of the directional drive is increased when a pivoting safeguard is provided, in order to prevent a rocker from being pivoted too far and parts of the directional drive or of the rocker, for example a mounting or a seal, from possibly being damaged or destroyed as a result.

Particularly advantageously, the mounting of the roller and the mounting of the rocker are arranged in one line, so that no tilting moment arises due to the actuating force of the actuation device.

The directional drive according to the invention is described below with reference to the exemplary figure 1 which is not restrictive and which shows such a directional drive in a three-dimensional view.

The directional drive 1 in fig. 1 consists essentially of a frame 12, in which a first roller 6 is mounted in a mounting 8, PCT/EP2005/006837 - 2a -here essentially stationarily. Stationarily mounted means, here, that the roller, although it can rotate, possesses essentially no further degrees of freedom with respect to the frame 12. A second roller 5 is mounted rotatably in a further mounting 7 and is arranged so as to be advanceable with respect to the first roller 6, that is to say can be moved in relation to the first roller 6. For this purpose, two rockers 2, 3 are provided, which are arranged pivotably about an axis of rotation 13 on the frame. The second roller 5 is arranged rotatably in the mounting 7 on the rockers 2, 3, and an actuation device 4, such as, for example, here, a pressure medium cylinder, preferably a hydraulic cylinder, is arranged in each case at the free end of the rockers 2, 3.

The rockers 2, 3 are mounted on the frame 12 so as to be movable separately and independently of one another. For this purpose, in the example according to fig. 1, an axle 9, for example a tube, is mounted rotatably on the frame 12 in two bearings 10, here, for example, rolling bearings, such as, for example, a roller bearing or selfaligning roller bearing. One rocker 3 is connected firmly, for example by welding, to the axle 9, as indicated in fig. 1. The second rocker 2 is arranged rotatably on the axle 9 by means of a bearing 11, here, again,.
a rolling bearing. The two rockers 2, 3 can therefore be moved completely independently of one another.

However, it would, of course, just as easily be conceivable in each case to mount the two rockers 2, 3 in a suitable way pivotably on a specific axle or specific journal connected to the frame, in which case the rocker 2, 3 could be connected firmly to the axle or journal or be mounted on these, or to mount said two rockers directly on the frame 12. An axle, on which the rockers 2, 3 could be mounted pivotably, could likewise be arranged rigidly on the frame 12.

The pressure medium cylinder 4 is fastened, here, with one end to the rockers 2, 3 and with its other end in each case to the frame 12, so that, by action upon the pressure medium cylinder 4, the second roller 5 can be pivoted about the axis of rotation 13 and moved in relation to the first roller 6. The point of engagement of the pressure medium cylinder 4, the mounting 7 of the roller 5 in the rocker 2, 3 and the mounting 11 of the rocker 2 on the axle 9 or the rigid connection between the rocker 3 and axle 9 is in each case preferably arranged in one line, so that no tilting moments are induced by the forces exerted by the pressure medium cylinder 4 in the rockers 2, 3. However, the pressure medium cylinder 4 could also be fastened to a laterally projecting projection of the rockers 2, 3.

PCT/EP2005/006837 - 3a -The spring assembly 14, which is arranged in each case between the rockers 2, 3 and the mounting 16 of the spring assembly 14, serves essentially for pulling the bearing 7 of the roller 5 upward, in order thereby to eliminate or at least reduce the bearing play. Consequently, impacts on the bearing 7 of the second roller 5 when the strip moves in between the rollers 5, 6 are to be avoided.

Further, as indicated in fig. 1, a pivoting safeguard 15 may be provided, in order to limit the pivoting movement of the rocker 2 arranged pivotably on the axle 9. This prevents the situation where, in the event of a malfunction, a permissible pivot angle of, for example, the bearing or of a seal may not be exceeded.
The pivoting safeguard 15 may in this case be designed such that the axle 9 has provided on it two stops which predetermine the limits of the pivoting movement and between which moves a further stop connected to and moving in accompaniment with the rocker 2.

The functioning of the directional drive 1 is already sufficiently known from the prior art and therefore does not have to be described in any more detail. Between the two rollers 5, 6, a rolled strip is led through, the strip tension and lateral movement of which can be set by means of the directional drive 1, in that the rockers 2, 3 are pivoted by the pressure medium cylinders 4 and the second roller 5 is thus advanced in a desired way toward the first roller 6. The pressure medium cylinders 4 are in this case to be activated correspondingly, and, if appropriate, corresponding regulation is to be provided.

Claims (8)

1. A directional drive with a first roller (6) and a second roller (5), which is arranged so as to be advanceable toward the first roller (6), and with two pivotable rockers (2, 3), in which the second roller (5) is arranged, mounted rotatably, and on which an actuation device (4) is arranged in each case for pivoting the rockers (2, 3), the rockers (2, 3) being arranged, mounted pivotably on a frame (12) independently of one another, characterized in that the rockers (2, 3) are arranged on the frame (12) pivotably about an axis of rotation (13).
2. The directional drive as claimed in claim 1, characterized in that the rockers (2, 3) are in each case mounted pivotably at one of their ends, the actuation device (4) is arranged at the other end, and the mounting (7) of the second roller (5) is arranged between the two ends.
3. The directional drive as claimed in claim 1 or 2, characterized in that an axle (9) is arranged, mounted rotatably, on the frame (12) and at least one of the two rockers (3) is connected rigidly to this axle (9).
4. The directional drive as claimed in claim 3, characterized in that the second rocker (2) is connected pivotably to the axle (9).
5. The directional drive as claimed in claim 1 or 2, characterized in that the rockers (2, 3) are in each case arranged, mounted pivotably on a specific axle or specific journal.
6. The directional drive as claimed in claim 1 or 2, characterized in that an axle is arranged rigidly on the frame -1a-(12), and the rockers (2, 3) are arranged, mounted pivotably on this axle.
7. The directional drive as claimed in one of claims 1 to 6, characterized in that a pivoting safeguard (15) is provided, by means of which the pivoting movement of at least one rocker (2, 3) can be restricted between predeterminable limits.
8. The directional drive as claimed in one of claims 2 to 7, characterized in that the point of engagement of the actuation device (4) on the rocker (2, 3), the mounting (7) of the second roller (5) and the mounting of the rocker (2, 3) on the axle (9) or the rigid connection between the rocker (2, 3) and axle (9) are arranged essentially in one line.
CA2572489A 2004-07-05 2005-06-24 Directional drive Expired - Fee Related CA2572489C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
ATA1133/2004 2004-07-05
AT11332004 2004-07-05
AT0153604A AT500689B1 (en) 2004-07-05 2004-09-14 STEERING DRIVER
ATA1536/2004 2004-09-14
PCT/EP2005/006837 WO2006002835A1 (en) 2004-07-05 2005-06-24 Directional drive

Publications (2)

Publication Number Publication Date
CA2572489A1 true CA2572489A1 (en) 2006-01-12
CA2572489C CA2572489C (en) 2013-10-01

Family

ID=34971095

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2572489A Expired - Fee Related CA2572489C (en) 2004-07-05 2005-06-24 Directional drive

Country Status (8)

Country Link
EP (1) EP1763479B2 (en)
JP (1) JP4833968B2 (en)
CN (1) CN1980846B (en)
AT (2) AT500689B1 (en)
BR (1) BRPI0513036A (en)
CA (1) CA2572489C (en)
DE (1) DE502005009321D1 (en)
WO (1) WO2006002835A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9132460B2 (en) 2010-10-08 2015-09-15 Siemens Vai Metals Technologies Gmbh Driver for a steel strip coiler

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511463B1 (en) * 2011-06-22 2012-12-15 Siemens Vai Metals Tech Gmbh BAND TREATMENT DEVICE
AT511341B1 (en) 2011-06-22 2012-11-15 Siemens Vai Metals Tech Gmbh DRILL ROLL CHANGING SYSTEM FOR DRIVER OF A ROLLING MACHINE
CN102351115A (en) * 2011-06-29 2012-02-15 吴江市金晟工艺制品有限责任公司 Straw mat pulling device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614254A1 (en) * 1976-04-02 1977-10-27 Schloemann Siemag Ag PROCESS FOR REGULATING THE TENSION PRESSURE FORCE ON DRIVING EQUIPMENT FOR ROLLING STRIP, IN PARTICULAR IN FRONT OF STRIP REELS IN BROADBAND ROLLING MILLS AND DRIVING DEVICE FOR PERFORMING THE PROCESS
GB1509627A (en) * 1976-11-19 1978-05-04 Loewy Robertson Eng Co Ltd Pinch roll unit and strip processing lines incorporating such units
JPH06102523B2 (en) * 1986-07-16 1994-12-14 富士写真フイルム株式会社 Base generation method
JPH0450968Y2 (en) * 1986-08-04 1992-12-01
JPH0852514A (en) * 1994-08-12 1996-02-27 Ishikawajima Harima Heavy Ind Co Ltd Pinch roll device
DE19520709A1 (en) 1995-06-09 1996-12-12 Schloemann Siemag Ag Drivers for rolled strips
JP3386646B2 (en) * 1995-12-29 2003-03-17 石川島播磨重工業株式会社 Pinch roll gap holding device
ATE256065T1 (en) * 1999-08-25 2003-12-15 Heidelberger Druckmasch Ag BEARING UNIT FOR PULL ROLLERS OF MATERIAL WEBS
JP4389136B2 (en) * 2000-02-24 2009-12-24 株式会社Ihi Control method and control device for hydraulic pinch roll
JP2002346621A (en) * 2001-05-21 2002-12-03 Mitsubishi Heavy Ind Ltd Pinch roll equipment
JP2003108930A (en) * 2001-09-27 2003-04-11 Nippon Signal Co Ltd:The Desktop card processing device
JP3785124B2 (en) * 2002-08-02 2006-06-14 三菱重工業株式会社 Offset variable pinch roll device
DE10344710A1 (en) * 2003-09-26 2005-05-04 Dornier Gmbh Lindauer Device for controlling the contact force of a pressure roller to a goods guide roller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9132460B2 (en) 2010-10-08 2015-09-15 Siemens Vai Metals Technologies Gmbh Driver for a steel strip coiler

Also Published As

Publication number Publication date
JP2008504961A (en) 2008-02-21
AT500689B1 (en) 2008-07-15
ATE462667T1 (en) 2010-04-15
CN1980846A (en) 2007-06-13
AT500689A2 (en) 2006-02-15
EP1763479A1 (en) 2007-03-21
CN1980846B (en) 2010-05-05
EP1763479B2 (en) 2013-07-17
CA2572489C (en) 2013-10-01
WO2006002835A1 (en) 2006-01-12
AT500689A3 (en) 2007-11-15
DE502005009321D1 (en) 2010-05-12
EP1763479B1 (en) 2010-03-31
BRPI0513036A (en) 2008-04-22
JP4833968B2 (en) 2011-12-07

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EEER Examination request
MKLA Lapsed

Effective date: 20150625