EP1430364A1 - Verfahren zum ausgleich eines getriebespiels bei reversierbetrieb und vorrichtung zur durchführung dieses verfahrens - Google Patents
Verfahren zum ausgleich eines getriebespiels bei reversierbetrieb und vorrichtung zur durchführung dieses verfahrensInfo
- Publication number
- EP1430364A1 EP1430364A1 EP02777232A EP02777232A EP1430364A1 EP 1430364 A1 EP1430364 A1 EP 1430364A1 EP 02777232 A EP02777232 A EP 02777232A EP 02777232 A EP02777232 A EP 02777232A EP 1430364 A1 EP1430364 A1 EP 1430364A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- gear
- geared motor
- rotation
- web
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
- G03G15/754—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to band, e.g. tensioning
- G03G15/755—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to band, e.g. tensioning for maintaining the lateral alignment of the band
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00135—Handling of parts of the apparatus
- G03G2215/00139—Belt
- G03G2215/00143—Meandering prevention
- G03G2215/00156—Meandering prevention by controlling drive mechanism
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19623—Backlash take-up
Definitions
- the present invention relates to a method for compensating for a gear backlash during reversing operation of a geared motor, this geared motor in particular being operated in an electrophotographic printing machine in order to bring about the alignment of a recording medium web.
- An apparatus for performing this method is also claimed.
- a device which detects the edge of a band or belt and continuously adjusts to a specific position by means of a tiltable roller over which the band runs.
- a sensor detects the edge of the belt and the sensor output is used to control a gear motor that swivels the tiltable roller accordingly. Compensation for a gear play of the gear motor is not known from this document.
- EP-A1-0 699 968 a device for controlling a web is known which works by means of a tiltable web steering roller, a device for compensating an empty aisle of the tilting device being provided.
- the position of the web is also determined by sensors that detect the edge of the web.
- the response behavior of the tilting device is determined in such a way that it is first tilted in one direction and then tilted back in many small steps in the opposite direction in order to detect the position of the web by means of the output of the sensors and to calculate the idle gear therefrom.
- a method for compensating for a gear play of a gear motor that can be operated in a reversing mode, in particular in an electrophotographic printing machine for aligning a recording medium web by means of a web steering device that can be adjusted by the gear motor comprises the following steps: turning the gear motor in a first direction of rotation up to an end position; Turning the gear motor in the opposite direction; Detecting a gear play in the reversal point of the rotary movement by means of a sensor; Calculating a parameter by means of the sensor output, which represents the gear play; and using the calculated parameter in the reversing operation to compensate for the gear play determined in this way.
- the invention has the advantage over the method known from the above-mentioned EP-Al-0699 968 for eliminating total play in the belt drive of an electrographic device that it specifically compensates for the play on the transmission.
- the invention is based on the knowledge that the transmission has a very large or even the largest Influence the game in an overall arrangement with a record carrier track.
- the invention does not mean that the entire belt arrangement at its place of use, which can be up to half a world trip from the place of manufacture, does not have to be measured; measure the gearbox at the manufacturing site and deliver it together with the determined correction values for replacement in the printing press. Then only the correction values have to be entered into the machine and a precise printing can take place again.
- FIG. 1 is a perspective view of an apparatus for aligning a recording medium web in an electrophotographic printing device
- Figure 2 is a schematic enlarged view of a geared motor which is attached to a holding plate in the printing device.
- 3 shows a side view of the holding plate according to FIG. 2, the positioning of a sensor flat module being illustrated;
- Fig. 5 is a diagram showing the sensitivity of the sensor as a function of the distance to a magnet.
- FIG. 1 shows a device for aligning a recording medium web, which can be used in particular in an electrophotographic printing device.
- the device comprises a geared motor 1 which is fastened to a holding plate 12, this holding plate 12 in turn being fastened to a mounting plate 14.
- a geared motor 1 which is fastened to a holding plate 12, this holding plate 12 in turn being fastened to a mounting plate 14.
- the geared motor 1 serves to pivot a control bar 3 and a drive roller 4 about a tilt axis 6.
- the tilt axis 6 runs essentially perpendicular to the conveying direction of the recording medium web.
- a drive motor 5 is mounted on a support plate 13 and serves to drive the drive roller 4, which conveys the recording medium web.
- the recording medium web coming from below is conveyed upward around the drive roller 4, further over the control bar 3 and the support plate 15.
- a sensor flat module 2 is mounted on the holding plate 12 in addition to the geared motor 1.
- a cam 7 is mounted, which is rotated by the geared motor 1.
- the cam 7 bears against a cam counter-support 8, so that when the cam 7, which has a specific external profile, is rotated, the counter-support 8 is deflected accordingly.
- a tension spring 9 is provided which acts on the counter-surface 8 with a spring force.
- the sensor flat module 2 comprises a magnet 11 and, in the embodiment shown, two Hall sensors 10. These sensors are used to detect the gear play of the gear motor 1.
- the gear backlash compensation according to the invention for example in a control circuit for strip edge control of a recording medium web, is carried out as follows: the (DC) geared motor 1 for driving the cam disk 7 is used for the deflection of the control bar 3.
- the geared motor 1 has a backlash every time the direction of rotation changes on. This backlash must be determined and taken into account, for example, as a time correction factor for each reversal of the direction of rotation.
- the gear play can be determined as follows:
- the control bar 3 is tilted into the end position via the geared motor 1 as part of the final function test.
- Hall sensor 10 monitors the end position.
- the direction of rotation of the geared motor 1 is then reversed.
- the time which elapses before the Hall sensor signal drops again is preferably measured here.
- This measured time minus the hysteresis of the Hall sensor 10 results in the (correction) time T, which must be taken into account when changing the direction of rotation. In the other direction of rotation, the correction time is determined analogously.
- the gear play of the geared motor 1 can also be determined on site if required (service).
- the geared motor 1 can also be measured outside the device and the gear play can be determined.
- the geared motor 1 is installed in a suitable device, which replaces the control bar with a spring-loaded or weight-loaded cam plate counterpart. If this geared motor 1 is installed in a printer, the previously determined correction time can be entered into the device control.
- the geared motor 1 is controlled via a so-called H-bridge (eg L298) in order to stop it.
- H-bridge eg L298
- Cam 7 is moved and used only in an area with a slow and even gradient, the magnet 11 being fastened to the cam plate 7 and the two Hall sensors 10 (for example UGN3140) being mounted on the sensor flat module 2.
- the two Hall sensors 10 allow an action radius of approximately 300 °.
- the two Hall sensors 10 serve as limit switches which stop the geared motor 1 immediately when activated.
- FIG. 4 shows that a measuring surface 16 is provided on the Hall sensor 10, which is approximately 0.15 mm away from the center of the sensor.
- the cam disc 7 with the magnet 11 is rotated in one direction of rotation into the end position until the corresponding Hall sensor 10 responds, the geared motor 1 being stopped immediately, namely by short-circuiting the connections via the above-mentioned H- Bridge. Then the direction of rotation is reversed and the time measured between the start of the geared motor 1 and the drop of the signal at the Hall sensor 10.
- the gear backlash can then be calculated from the following (measurement) variables:
- Gear ratio 400 1 radius magnet / axis 15 mm
- Hysteresis at 1 mm 0.1 mm (characteristic curve in FIG. 5) Measured time 30 ms (between engine start and Hall sensor signal drop)
- the backlash is approximately 21.51 ms. H. that the geared motor 1 must be activated by 21.51 ms longer when changing the direction of rotation.
- the prerequisites for determining the backlash or gear play with the Hall sensors 10 are:
- the hysteresis of the Hall sensor 10 should remain approximately the same over the service life, the response value being approximately 70 to 200 Gauss.
- the characteristic curves of the Hall sensor 10 (UGN3140) selected as an example are shown in FIG.
- the four characteristic curves each show the switch-on and switch-off points at 70 and 200 gauss.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10147684 | 2001-09-27 | ||
DE10147684A DE10147684A1 (de) | 2001-09-27 | 2001-09-27 | Verfahren zum Ausgleich eines Getriebespiels bei Reversierbetrieb und Vorrichtung zur Durchführung dieses Verfahrens |
PCT/EP2002/010835 WO2003029903A1 (de) | 2001-09-27 | 2002-09-26 | Verfahren zum ausgleich eines getriebespiels bei reversierbetrieb und vorrichtung zur durchführung dieses verfahrens |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1430364A1 true EP1430364A1 (de) | 2004-06-23 |
EP1430364B1 EP1430364B1 (de) | 2007-08-08 |
Family
ID=7700498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02777232A Expired - Lifetime EP1430364B1 (de) | 2001-09-27 | 2002-09-26 | Verfahren zum ausgleich eines getriebespiels bei reversierbetrieb und vorrichtung zur durchführung dieses verfahrens |
Country Status (4)
Country | Link |
---|---|
US (1) | US7458568B2 (de) |
EP (1) | EP1430364B1 (de) |
DE (2) | DE10147684A1 (de) |
WO (1) | WO2003029903A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10322502A1 (de) * | 2003-05-19 | 2004-12-23 | OCé PRINTING SYSTEMS GMBH | Umdruckstation für ein elektrografisches Druck- oder Kopiergerät |
US7534395B2 (en) | 2004-04-27 | 2009-05-19 | Beckman Coulter, Inc. | Hysteresis compensation system |
JP4662551B2 (ja) * | 2006-01-30 | 2011-03-30 | 京セラミタ株式会社 | シート供給装置および画像形成装置 |
US8175507B2 (en) * | 2009-03-31 | 2012-05-08 | Xerox Corporation | Transfer belt lateral position control apparatus and method |
US20130025391A1 (en) * | 2011-07-27 | 2013-01-31 | Daniel James Magnusson | Gear Backlash Compensation In A Printing Device |
EP2738619B1 (de) * | 2012-11-29 | 2021-04-21 | Canon Kabushiki Kaisha | Bandtransportvorrichtung und Bilderzeugungsvorrichtung |
JP6610462B2 (ja) * | 2016-07-27 | 2019-11-27 | 株式会社島津製作所 | 材料試験機 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4061222A (en) * | 1975-07-09 | 1977-12-06 | Eastman Kodak Company | Web tracking apparatus |
US4174171A (en) * | 1978-07-24 | 1979-11-13 | Xerox Corporation | Belt tracking system |
US4493571A (en) * | 1981-10-09 | 1985-01-15 | Iquad Company Incorporated | Print guide mechanism |
JP3008438B2 (ja) | 1990-04-26 | 2000-02-14 | 日本電気株式会社 | 2値画像符号化装置 |
JPH0485065A (ja) * | 1990-07-30 | 1992-03-18 | Konica Corp | 給紙装置 |
US5248027A (en) * | 1992-12-18 | 1993-09-28 | Xerox Corporation | Method and apparatus for belt steering control |
US5479241A (en) * | 1993-01-19 | 1995-12-26 | Xerox Corporation | Method and apparatus for determining and updating a photoreceptor belt steering coefficient in a belt tracking system |
US5515139A (en) * | 1994-08-29 | 1996-05-07 | Xerox Corporation | Apparatus and method for lateral belt control with backlash compensation |
US5717984A (en) * | 1996-01-11 | 1998-02-10 | Xerox Corporation | Driving, steering and tensioning roll for belt loops |
US5729100A (en) * | 1997-02-03 | 1998-03-17 | The United States Of America As Represented By The Secretary Of The Navy | Method and apparatus for controlling backlash in motor drive systems |
GB9716658D0 (en) * | 1997-08-07 | 1997-10-15 | Lucas Ind Plc | Improvements relating to motors |
JP2002532739A (ja) | 1998-12-04 | 2002-10-02 | オーセ プリンティング システムズ ゲゼルシャフト ミットベシュレンクテル ハフツング | スリップ認識のためのセンサを有する電子写真印刷装置 |
US6255645B1 (en) * | 1999-06-04 | 2001-07-03 | Hewlett-Packard Company | Method and apparatus for optically measuring drive train backlash |
WO2001011432A1 (de) | 1999-08-10 | 2001-02-15 | OCé PRINTING SYSTEMS GMBH | Verfahren und steuerung zur positionsregelung eines bandförmigen bildträgers in einem elektrographischen gerät |
JP3688962B2 (ja) * | 2000-01-13 | 2005-08-31 | 理想科学工業株式会社 | バックラッシュ補正装置及びバックラッシュ補正方法 |
US6611823B1 (en) * | 2000-04-20 | 2003-08-26 | Board Of Regents, The University Of Texas System | Backlash compensation using neural network |
US6690989B2 (en) * | 2002-03-19 | 2004-02-10 | 3M Innovative Properties Company | Closed-loop phase compensation controller |
DE102004006723A1 (de) * | 2004-02-11 | 2005-09-01 | Zf Friedrichshafen Ag | Planetenradgetriebe |
US7534395B2 (en) * | 2004-04-27 | 2009-05-19 | Beckman Coulter, Inc. | Hysteresis compensation system |
-
2001
- 2001-09-27 DE DE10147684A patent/DE10147684A1/de not_active Ceased
-
2002
- 2002-09-26 EP EP02777232A patent/EP1430364B1/de not_active Expired - Lifetime
- 2002-09-26 US US10/491,088 patent/US7458568B2/en not_active Expired - Fee Related
- 2002-09-26 DE DE50210658T patent/DE50210658D1/de not_active Expired - Lifetime
- 2002-09-26 WO PCT/EP2002/010835 patent/WO2003029903A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO03029903A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE50210658D1 (de) | 2007-09-20 |
US20050158076A1 (en) | 2005-07-21 |
EP1430364B1 (de) | 2007-08-08 |
WO2003029903A1 (de) | 2003-04-10 |
DE10147684A1 (de) | 2003-04-24 |
US7458568B2 (en) | 2008-12-02 |
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