EP1170233A2 - Unité d'alignement pour matériau en feuille - Google Patents

Unité d'alignement pour matériau en feuille Download PDF

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Publication number
EP1170233A2
EP1170233A2 EP01109223A EP01109223A EP1170233A2 EP 1170233 A2 EP1170233 A2 EP 1170233A2 EP 01109223 A EP01109223 A EP 01109223A EP 01109223 A EP01109223 A EP 01109223A EP 1170233 A2 EP1170233 A2 EP 1170233A2
Authority
EP
European Patent Office
Prior art keywords
sheet material
alignment unit
elements
sheet
plane
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
EP01109223A
Other languages
German (de)
English (en)
Other versions
EP1170233A3 (fr
EP1170233B1 (fr
Inventor
Jürgen Sahlmann
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.)
Eastman Kodak Co
Original Assignee
NexPress Solutions LLC
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
Application filed by NexPress Solutions LLC filed Critical NexPress Solutions LLC
Publication of EP1170233A2 publication Critical patent/EP1170233A2/fr
Publication of EP1170233A3 publication Critical patent/EP1170233A3/fr
Application granted granted Critical
Publication of EP1170233B1 publication Critical patent/EP1170233B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/002—Registering, e.g. orientating, articles; Devices therefor changing orientation of sheet by only controlling movement of the forwarding means, i.e. without the use of stop or register wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • B65H9/106—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using rotary driven elements as part acting on the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4431—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material
    • B65H2301/44318—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material between rollers

Definitions

  • the invention relates to an alignment unit for sheet material, such as those used in the supply of printing material to sheet-processing companies Printing presses can be used to print the material align exactly.
  • DE 44 16 564 A1 relates to a sheet alignment device.
  • This device for aligning an essentially flat transport path moving sheet allows alignment of a moving sheet Leaf in a variety of orthogonal directions, for example transverse to Transport track, in the direction of the transport track and for eliminating Imbalances.
  • the device has a first roller arrangement with a first Pinch roller, which is mounted so that it can rotate about an axis that lies in a plane extending parallel to the plane of the transport path, and essentially at right angles to the direction of sheet transport along the Transport track runs.
  • a second roller arrangement has a second Pinch roller, which is mounted so that it can rotate about an axis that lies in a plane extending parallel to the plane of the transport path and essentially at right angles to the direction of sheet transport along the Transport track runs.
  • a third roller arrangement is provided, the one third pressure roller, which is mounted so that it is about an axis can rotate, which extends in a parallel to the plane of the transport path Plane lies and essentially perpendicular to the direction of sheet transport runs along the transport track.
  • a third role arrangement one by one Axis is rotatable, which is parallel to the plane of the transport path extending plane and is substantially perpendicular to the direction of the Sheet transport runs along the transport path is along its axis of rotation in movable in a direction transverse to the transport path.
  • Control device provided with the first or second or third Roller arrangement is operatively connected and optionally the rotation of the first and second roller assembly controls to move the leading edge one towards of the sheet transport along the sheet moving sheet into a Align the position perpendicular to the direction of sheet transport.
  • the Control means also controls the rotation and transverse movement of the third Roller assembly to move the moving blade in the cross direction Sheet transporting direction and in the direction in which to align the sheet moves along the transport path.
  • the sheet alignment device known from DE 44 16 564 A1 is capable of required alignment accuracy only to a limited extent. To the Achieving the required alignment accuracy is extensive Modification of the prior art sheet aligner is required does not appear economical.
  • the sheets are arranged on the feed table in a shingled arrangement promoted before on the provided in the feed table level side and Draw marks are aligned. After alignment of the arch In the aligned state, this material is transferred to a pre-gripper, which accelerates the sheet material to machine speed and turns it on passes an arcuate cylinder arranged downstream of the pre-gripper device.
  • the invention has for its object the alignment of an arcuate To carry out material so that unprinted, already printed or otherwise illustrated, arched material through the orientation components in its aligned position, the top is damaged or otherwise impaired.
  • the alignment unit changes the coefficient of friction to the Surfaces of the counter pressure rollers due to wear or decreasing normal force, as well as changes in the coefficient of friction above segment rollers provided within the alignment units be compensated.
  • the to generate the feed force between the mutually cooperating peripheral surfaces of segment rollers and Counter pressure rollers required normal force, for example, by elastic Spring elements are generated.
  • the reset of the counter pressure rollers after. displacement transversely to the sheet conveying direction within the alignment unit can be done after correcting the position of the substrate to be aligned relative to its running direction with an actuator, be it mechanical cams or electrical or pneumatic actuators, back in his original position to be reset.
  • the setting of the normal force on the sheet material can be done by Apply the normal force to the one in the plane above the sheet conveying plane located segment rollers as well as those in the below the sheet conveying plane arranged counter pressure rollers are applied.
  • the rotating elements contacting the arcuate material formed as segment rolls the circumferential processing of about one Three-quarter circle describes.
  • the rotary bodies designed as segment rollers can be thought of in Viewed in the direction of sheet travel, in consecutive pairs or groups to be ordered.
  • the segment rollers, each spaced two by two recorded in a plane lying above the sheet conveying plane are driven by drives.
  • the drives of the segment rollers 25 are in a first orientation and a second orientation with respect to the Position of the sheet running.
  • the first orientation is characterized by that the output axes of the drives are perpendicular to the direction of sheet travel, while the second orientation is characterized in that the output axis of the drive runs parallel to the direction of sheet travel.
  • Counter pressure rollers on axles can be stationary, while those with them cooperating rotating bodies designed as segment rollers Displacement relative to the stationary counter pressure rollers To run.
  • the width exceeds that of stationary stored counter pressure rollers below the conveying plane of the arcuate Material of the segment rollers in a level above the conveyor level of the sheet material.
  • the counter-pressure rollers as a relative to the segment rollers displaceable unit can be designed. The width of the Circumferential surfaces of the counter pressure rollers correspond to the width of the Segment roles, which are in pairs on a level above the conveying level of the sheet material.
  • Alignment unit can be attached to a feeder for feeding sheet material, to a machine processing this material, for example.
  • the equipped with the alignment unit proposed according to the invention Printing machines for processing sheet material are characterized by this that a scaling and an associated risk of The sheet feed is not interrupted in the event of scale problems.
  • the printed sheet 1 contains its surface is a printed image 2, which is of a frame-like Edge 3 is surrounded.
  • the inside of the printing surface 2 and the frame 3rd marked deviations ⁇ x and ⁇ y denote position errors in the x and y directions, which occur when the printed image 2 is printed on the surface of the sheet can adjust.
  • the deviations identified by reference numerals 4 and 5 are positional deviations, whereas in the illustration according to FIG. 2 angular deviations of the printed image 2 in relation to its position on the printed sheet 1 are shown.
  • the angle errors ⁇ which occur are also included Reference numeral 6 marked.
  • the printed image 2 can be indicated in the Positions are printed on the surface of the printing material 1, this being conveyed ahead with its conveying edge 23 in the direction of sheet travel.
  • FIG. 3 shows a reversing register in a schematic view, with reference numeral 7, which is between the printed images 2 Front and back of the sheet material 1 offsets characterize. These are shown in the illustration according to FIG. 3 with reference numerals 7 or denoted by ⁇ x and ⁇ y.
  • the turning register plays in particular play an important role in translucent paper types and in Booklet printing.
  • FIG. 4 shows schematically Side view of the interface arch alignment conveyor belt.
  • the positioning lip or positioning flap can be a plastic component which is made of an employed position 13.1 can be brought into a parked position 13.2, which here only schematically in solid or dashed lines is shown. Press on using the adjusting flap or the adjusting lip of the sheet material 1 on the surface of the conveyor belt 10 in aligned state of the sheet material 1. After passage of the Pressing element passes on the surface of the conveyor belt 10 picked up sheet a loading unit 14. In the loading unit 14 is inside a hood-shaped cover an electrode 15 which is used for a static charge of the arcuate material 1 and thus its Adhesion to the surface of the conveyor belt 10 provides.
  • the charging unit 14 which is only schematic in the illustration according to FIG is reproduced, a leading edge sensor 17 is arranged downstream. This exists from a radiation source 18 arranged below the sheet conveying plane, the a lens arrangement 19 is arranged downstream.
  • the lens assembly 19 outgoing radiation field 20 penetrates the sheet conveying plane 9 and strikes a diaphragm arrangement that is above the conveying path of the arcuate Material 1 is arranged in the conveyor plane 9.
  • the aperture arrangement is a Subordinate receiver 21, which the presence of the leading edge 23 of the sheet material 1 registered.
  • FIG. 5 shows the alignment unit 8 in plan view out, whose components are shown here in a schematic representation are.
  • the alignment unit 8 is achieved by an arcuate material 1 which is promoted in funding direction 22.
  • the leading edge 23 of the arcuate Material 1 is relative to the direction of travel of the sheet material 22 arranged offset, whereby there is also an oblique course of the side edges 24 of the sheet material 1 sets.
  • the drives 27, designated M1 and M2 respectively Individual axes 32 drive rotary elements 25 at feed speed accelerated.
  • control of the Drives 27 or M1 or M2 ensures that each copy of the sheet material 1 with identical peripheral portions of the rotating elements 25, which can be configured, for example, as segment rollers, in Touch comes.
  • the dimensional and shape tolerances of the two rotary elements 25, driven by the drives M1 and M2 could be due to occur thereby in the same way for each copy of the sheet material 1 and can be easily calibrated out.
  • the two rotation elements 25 After passing the first light barrier 26, the two rotation elements 25 are set in rotation, the sheet is fed at feed speed via a further sensor unit arranged downstream of the first light barrier 26 30.1 transported. As soon as the first of the two sensors 30.1 the sheet leading edge 23 of the sheet material 1 has been detected, a counter unit begins count the motor steps. The counting process ends when the second Sensor of sensor pair 30.1 switches.
  • a correction value is determined from the counter reading determined in this way, the additional feed on the segment roller drive that was started last, d. H. either the drive 27, the one labeled M1 or the one labeled M2.
  • the corresponding segment roller is formed, for example Rotating body 25 moves at an increased feed rate until the predetermined Path difference is completely compensated.
  • the sheet leading edge 23 is exactly perpendicular to the sheet running direction 22 oriented.
  • the sheet-like material 1 becomes 22 in the sheet running direction continuously from the first pair of rotary bodies 25 to the subordinate one Pass a pair of rotary bodies 25, which on a common axis 31st are included. Now this is via the drives 27 and M1, M2 driven segment roller pair 25 turned off and moves into a Rest position.
  • the sheet is now correctly aligned with respect to its angular position now on a sensor field 30 in which the position of the side edges 24 of the sheet material 1 is measured.
  • the determined measured value becomes a change in position is determined for the drive 27, which is denoted by M4, whose drive shaft extends parallel to the sheet running direction 22. through this drive 27, taken up in a second orientation 29, takes place Correction change of the sheet material 1 parallel to the sheet running direction 22 (see FIG. 7).
  • the rotation elements 25 can be used as segment rollers be formed, the one marked by an interruption Have peripheral surface 33.
  • the segment rollers 25 rotate in the direction 34, marked by the arrow and describe an approximately three-quarter circle in Terms of their axis of rotation.
  • Below the respective segment rollers 25 is one supporting the sheet material 1, shown here only schematically, shown.
  • the segment rollers 25 serving as a rotating body are shown in FIG a rest position shown in the left part of Figure 6, while in the right Part of FIG. 6 is a copy of the bow-shaped conveyed in the direction of sheet travel 22 Grab material 1 with its peripheral surface and according to the Transport direction of rotation 34.
  • the angular position is corrected from the sequence of figures in FIGS. 7, 8 and 9 and the correction of the lateral position of the sheet material 1 at the passage the alignment unit 8.
  • the sheet material 1 After correcting the angular position of the sheet material 1, as in FIG. 7 shown, the sheet material 1 undergoes a correction of its lateral position.
  • the two segment rollers 25 of the first pair can be operated via the stepper motors M1 and M2 are each controlled separately in the feed direction, while the second segment roller pair 25 is coupled via a common shaft 31. This can by means of the stepper motors 27, designated M3 and M4 in the feed direction or moved in the axial direction.
  • the as segment rollers are in an alignment unit designed rotary bodies assigned counter pressure rollers.
  • the embodiment variant according to FIG. 11 shows that there the Segment rollers 25 trained rotational body, for example, taken up a common axis 31, are displaceable in the direction of the double arrow. Are they recorded on a common axis 43, for example Counter pressure body designed as a slidable unit in the axial direction is the Alignment unit 8 robust against changes in the coefficient of friction on the Circumferential surfaces 45 of the counter pressure body 38 as well as robust and insensitive against changes in the coefficient of friction on the peripheral surfaces 33 of the Segment rollers 25. Adjustments to the mentioned friction coefficients can be compensated by adjusting the normal force.
  • the Normal force can be applied to the common axes 31 or 43 in the form of these adjustable spring elements are applied; however, it could also be use other pre-tensioning elements, such as tensioning screws or Tension rods or the like.
  • a provision on the common Axis 43 as a displaceable unit accommodated back pressure body 38 in their starting position can after a page correction in relation to the direction of travel 22 of the sheet material 1 with a suitable adjusting means, may be mentioned mechanical cams, electrical or pneumatic actuators, will be realized.
  • the Friction coefficients are taken care of by that to the surface of the arcuate material 1 adjustable circumferential surfaces 33 of the segment rollers 25 the generated friction force is sufficient for alignment, and set larger can be considered as the frictional force between the peripheral surfaces 45 of the Back pressure body 38 and the underside of the arcuate material 1 prevails.
  • This ensures that there are none during the alignment process Markings or traces on the sides of the sheet material 1 remain, be it unprinted material, material printed on one side, or material already printed on both sides. It also ensures that the arcuate material 1 is not affected in its aligned position and exactly positioned in the sheet-processing machine, such as for example, a printing press or a digital printing press can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Advancing Webs (AREA)
  • Unwinding Webs (AREA)
EP01109223A 2000-05-12 2001-04-14 Unité d'alignement pour matériau en feuille Expired - Lifetime EP1170233B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10023290A DE10023290A1 (de) 2000-05-12 2000-05-12 Ausrichteeinheit für bogenförmiges Material
DE10023290 2000-05-12

Publications (3)

Publication Number Publication Date
EP1170233A2 true EP1170233A2 (fr) 2002-01-09
EP1170233A3 EP1170233A3 (fr) 2003-01-29
EP1170233B1 EP1170233B1 (fr) 2006-04-05

Family

ID=7641790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109223A Expired - Lifetime EP1170233B1 (fr) 2000-05-12 2001-04-14 Unité d'alignement pour matériau en feuille

Country Status (5)

Country Link
US (1) US20030042669A1 (fr)
EP (1) EP1170233B1 (fr)
JP (1) JP2002003017A (fr)
AT (1) ATE322442T1 (fr)
DE (2) DE10023290A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006010249B4 (de) * 2006-03-02 2014-07-17 Eastman Kodak Company Verfahren und Vorrichtung zur Ausrichtung eines Bogens
DE102008038771B4 (de) * 2008-08-12 2019-12-19 Wincor Nixdorf International Gmbh Vorrichtung zum Ausrichten mindestens eines Wertscheins beim Transport entlang einer Transportstrecke
DE102008048659A1 (de) * 2008-09-24 2010-04-01 Eastman Kodak Company Vorrichtung und Verfahren zum Ausrichten von Bögen
DE102008050524A1 (de) 2008-10-06 2010-04-08 Wincor Nixdorf International Gmbh Vorrichtung zum Ausrichten von Wertscheinen
WO2019016964A1 (fr) * 2017-07-21 2019-01-24 富士通フロンテック株式会社 Dispositif de réception de feuille de papier, dispositif de manipulation de feuille de papier et procédé de transport de feuille de papier
DE102022125020A1 (de) 2022-09-28 2024-03-28 Koenig & Bauer Ag Verfahren zur axialen Verstellung von Transportabschnitten mindestens einer Ausrichtestrecke
DE102022125018A1 (de) 2022-09-28 2024-03-28 Koenig & Bauer Ag Bearbeitungsmaschine sowie Verfahren zur Ansteuerung mindestens einer Ausrichtestrecke einer Bearbeitungsmaschine
DE102022125019A1 (de) 2022-09-28 2024-03-28 Koenig & Bauer Ag Bearbeitungsmaschine sowie Verfahren zur Ansteuerung mindestens einer Ausrichtestrecke einer Bearbeitungsmaschine
DE102022125022A1 (de) 2022-09-28 2024-03-28 Koenig & Bauer Ag Verfahren zur Ansteuerung mindestens einer Ausrichtestrecke einer Bearbeitungsmaschine
DE102022125017A1 (de) 2022-09-28 2024-03-28 Koenig & Bauer Ag Bearbeitungsmaschine sowie Verfahren zur Ansteuerung mindestens einer Ausrichtestrecke einer Bearbeitungsmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB445376A (en) * 1934-12-21 1936-04-08 John Ratcliff & Sons Ltd Improvements in or relating to sheet registering means for printing or like machines
WO1998018053A1 (fr) * 1996-10-22 1998-04-30 Oce Printing Systems Gmbh Dispositif d'alignement
EP0849929A2 (fr) * 1996-12-18 1998-06-24 Canon Kabushiki Kaisha Appareil d'entraínement de feuilles
US6019365A (en) * 1996-12-12 2000-02-01 Fuji Xerox Co., Ltd. Sheet alignment device, and image forming apparatus equipped with the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322273A (en) * 1993-05-18 1994-06-21 Eastman Kodak Company Sheet registration mechanism
DE19814141C2 (de) * 1998-03-30 2003-08-14 Ltg Holding Gmbh Verfahren und Vorrichtung zum positionsgenauen Zuführen von flächenförmigen Gütern zu einem Bearbeitungsprozeß

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB445376A (en) * 1934-12-21 1936-04-08 John Ratcliff & Sons Ltd Improvements in or relating to sheet registering means for printing or like machines
WO1998018053A1 (fr) * 1996-10-22 1998-04-30 Oce Printing Systems Gmbh Dispositif d'alignement
US6019365A (en) * 1996-12-12 2000-02-01 Fuji Xerox Co., Ltd. Sheet alignment device, and image forming apparatus equipped with the same
EP0849929A2 (fr) * 1996-12-18 1998-06-24 Canon Kabushiki Kaisha Appareil d'entraínement de feuilles

Also Published As

Publication number Publication date
EP1170233A3 (fr) 2003-01-29
DE10023290A1 (de) 2001-11-15
DE50109412D1 (de) 2006-05-18
EP1170233B1 (fr) 2006-04-05
US20030042669A1 (en) 2003-03-06
JP2002003017A (ja) 2002-01-09
ATE322442T1 (de) 2006-04-15

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