EP1161394B1 - Verfahren und vorrichtung zur ausrichtung von einzelblättern in einem blattverarbeitungsgerät - Google Patents
Verfahren und vorrichtung zur ausrichtung von einzelblättern in einem blattverarbeitungsgerät Download PDFInfo
- Publication number
- EP1161394B1 EP1161394B1 EP00920509A EP00920509A EP1161394B1 EP 1161394 B1 EP1161394 B1 EP 1161394B1 EP 00920509 A EP00920509 A EP 00920509A EP 00920509 A EP00920509 A EP 00920509A EP 1161394 B1 EP1161394 B1 EP 1161394B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transport
- roller
- recording medium
- transport direction
- sheet
- 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.)
- Expired - Lifetime
Links
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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
- B65H9/16—Inclined tape, roller, or like article-forwarding side registers
- B65H9/166—Roller
Definitions
- the invention relates to a method and an apparatus for Alignment of single sheets in a sheet processing device.
- the recording medium is outside of that in the device specified target transport path, so it can not be error-free to be edited.
- a printing device for example to a skewed print image on the record carrier.
- An alignment device for a single sheet printing device or a copying machine is known for example from WO-98/18053 A1.
- a sensor is provided in this alignment device, which detects the side edge of the record carrier, its position is determined relative to a target pressure position and a Transport device transverse to the transport direction of the sheet depending on the deviation of the actual position from the target position of the sheet shifts.
- this device allows a highly accurate Positioning of the record carrier, however, is relative complex because of their sensor device and the movable Transport device.
- a slightly simpler alignment device is out DE-A1-27 50 252 known.
- a Leaf-shaped original promoted for alignment with a stop.
- the original is driven by a Roller arrangement on which balls rest, the original is passed between rollers and ball.
- edges or corners can be damaged during the alignment process in mechanically acting alignment devices.
- JP-A-08-259049 From DE-C-922171, US-A-3,980,296, JP-A-63-127955 and arrangements are known from JP-A-08-259049, with the individual sheets of paper on a side leading edge can be aligned in a transport channel.
- the invention is based on the finding that in sheet feeders a particularly gentle one, even for sensitive ones Appropriate alignment of recording media is possible by first the part of the rear lying in the transport direction stop-side edge of the recording medium to a stop moved, i.e. is applied to a reference edge, and in the further course the remaining parts of the to be aligned Edge of the record carrier is guided to the stop. This can be done in an alignment section in particular by a Rotation of the record carrier with the rear part of it edge on the stop towards the reference edge (stop). Only in the further course of the alignment process the record carrier then completely to the reference edge created and thus a material-friendly alignment of the Record carriers also for lightweight record carriers reached.
- the direction of transport Edge at the front of the aligning stop spared the record carrier.
- Transport device in the alignment section e.g. by a driven roller on which a ball rests and by arrangement the transport device near the stop avoided that less rigid recording media at the stop Form folds or humps.
- the sheet-like recording material is aligned at the stop, in particular with a constant transport speed without additional acceleration devices.
- the stop forms a reference edge, in particular corresponds to the longitudinal edge of a target transport path.
- the alignment thus takes place in particular on the entire alignment route continuously taking place.
- To the input or output side Transport speed in the alignment section the transport speeds of adjacent devices or modules can be adjusted at the beginning or at the end of the alignment section a deceleration or an acceleration of the recording medium respectively. This can be particularly relative short sheet spacing in the sheet stream of successive record carriers can be achieved. For this it is advantageous a freewheel on the input side and / or on the output side Drive roller or even on all drive rollers of the alignment path.
- the device according to the invention in particular comprises at least a drive roller, the drive axis of which point in one Angle to the direction of transport.
- This drive roller can interact with a ball that the passing Record carrier presses against the drive roller and thus creates the friction required for transportation. Size, material, The surface structure and weight of the ball can can be easily adapted to the respective requirements.
- the bullet the friction can only be caused by its own weight produce. For this purpose, it can be freely stored in a ball cage. on the other hand can be used to support the ball on the record carrier acting friction force one towards pressure spring acting on the recording medium is provided be especially when relatively heavy record carriers should be processed.
- the structure according to the invention also enables a simple, inexpensive and space-saving facility specified that a low susceptibility to interference and a wide range usable formats, materials, types and weights for has the sheet-shaped recording medium without Processing of various types of record carrier settings (Parameter changes) on the alignment path or be carried out on the transport or alignment device have to.
- roller size on the alignment and transport device Friction material and / or angular arrangement and the corresponding Adjust parameters of the balls. Is just as good it is possible to make the number and arrangement of the roller / ball pairs.
- the ball of a roller / ball pair is particularly free-running held in a ball cage and stored by means of their Gravity centered on the oblique to the direction of transport provided transport roller.
- the arrangement consists of several Roller / ball pairs, in particular from three such pairs.
- a printing device 11 which sheet-like Recording material, here paper single sheets Input compartments 13 via a feed channel 14 to a printing station 12 promotes.
- the printing station 12 works after electrophotographic principle, the printing processes over a device controller 20 can be controlled.
- the printed single sheets are then passed through a fixing station 17, in which the toner image re-printed in the printing station 12 the paper sheet is fixed.
- the sheets of paper so printed are via an output path 18 paper output bins 19 or a paper output interface 19a for further processing in fed to other devices.
- the device control 20 is for this with all electronic components of the printing device, for example with the fixing station 17 and with the drive 21 connected.
- the sheets of paper are especially in front of the printing station Align 12 in the feed channel 14 so that the print image can be printed precisely on the paper. ever After application, such an alignment can also be done in the output path 18 or in the area of the output interface 19a be aligned to the sheets of other devices correctly supply.
- the printing device 11 is included an external paper supply module 15 connected via a connecting channel 16 in the input area 13 of the printing device 11 can feed at an interface 24.
- a connecting channel 16 for this is a tunnel-shaped connecting channel 16 with a corresponding one Drive 22 provided.
- the controller 20 of the printing device 11 is also with the drive 22 and with a Controller 23 of the external supply module 15 connected.
- connection tunnels provided either the same as the connecting channel 16 (with side orientation) or as a simple one Transport module designed without lateral paper alignment could be.
- Sheets of paper 2 come from the supply module 15 into the connecting channel 16 at a speed v 0 on a pair of transport rollers 3a into the connecting channel 16. They have a lateral offset S with respect to a desired transport position or reference edge 8.
- the front transport roller pair 3a of an alignment section transports the paper sheets onto a running surface 6 in the transport channel 16 until the front edge of the sheet reaches the area of a next transport device, namely a driven roller 5, on which a ball 4 rests.
- the ball 4 is freely supported in a ball cage 7 and rests only on the drive roller 5 with its own weight.
- the roller 5 is driven via a drive axis 9 at an angular velocity ⁇ .
- Three such identical roller pairs 4, 5 are provided within the transport channel 16 or the alignment track.
- the drive axis 9 is in each case at an acute angle ⁇ to the vertical of the transport direction A.
- the engagement of the inclined roller 5 or the ball 4 on the paper sheet 2 takes place in the edge region of the sheet 2 on the side of the reference edge 8 or the stop 1. If the paper sheet 2 rests on the stop 1, the roller 5 is moved in the following only one sheet movement parallel to the transport direction A along the stop 1 at the speed v r .
- This movement is influenced by the components of the static and sliding friction of the inclined friction roller 5 acting on the paper sheet as well as by the weight force Fg of the exposed ball 4 acting on the paper sheet as well as by the peripheral speed of the roller 5 with its component v a • cos ⁇ ,
- the resulting speed v r can be adapted to the general transport speed v 0 of the printing device 11 by varying the speed of the inclined roller 5, for example via a gear ratio or a controllable stepper motor.
- the engagement of the obliquely arranged pairs of rollers / balls in the alignment section between the two pairs of rollers 3a and 3b takes place in the edge region of the paper sheet 2 on the side of the reference edge 8 or the stop 1.
- the pair of balls and rollers 4, 5 engages in each case on the incoming side of the paper sheet in the area of the corner near the stop.
- the engagement of the rollers / pairs of balls 4.5 thus takes place asymmetrically, ie outside the center of the blade on the blade half on the stop side.
- Figure 3 shows further details of the function of the alignment device relevant parts.
- the centers of the balls 4 or the rollers 5 are at a distance b from Stop 1 removed. This distance is much smaller than the sheet length transverse to the main transport direction A. it is avoided that longitudinal folds in the course of the alignment process or hump in paper sheet 2 arise.
- the length of the alignment path depends on the processing paper sizes, the maximum to be corrected Offset S and dimension of the existing angle ⁇ .
- the rollers 5 are at an acute angle to the transport direction A. in an angular range of 0> ⁇ ⁇ 40 °, preferably in the angular range arranged between 5 ° and 15 °.
- the roller surface has one relative to the medium to be transported (paper) high friction. Suitable roller surfaces for paper are e.g. Elastomer surfaces.
- microcellular polyurethane foams are particularly suitable with cell sizes between 120 and 160 ⁇ m as well as with a coefficient of friction against paper between 1.2 and 2.0 especially between 1.5 and 1.7.
- Shore hardness (A) The polyurethane foam should be between 25 and 50, in particular between 30 and 45 or exactly 38.
- the transport plate 6 has a corrugated or embossed Surface and is, for example, from a 0.8 mm thick Sheet steel with an embossing depth of 1.2 mm. Through these wells, which are provided at short intervals there is sufficient friction between the paper and the transport plate 6 guaranteed and still too strong liability or Static charging of the paper avoided.
- the balls 4 are mounted in a ball cage 7, for example with some play in a hollow cylinder.
- the ball cage 7 holds the ball 4 horizontally centered on the corresponding driven roller 5. Through a bow lock or a jacket taper can cause the ball 4 to fall out be prevented if the entire arrangement is tilted or is transported.
- the pair of rollers 3b can be accelerated in a ramp-controlled manner at the end of the alignment section.
- the speed v a is selected to be lower than the process speed v 0 within the alignment path.
- at least the roller 5 arranged on the output-side transport roller pair 3b is provided with a free-wheel bearing 10 (see FIG. 4).
- This freewheel bearing 10 engages the drive axle 9 with the drive roller 5 when the drive roller 9 moves in the transport direction, but releases when the drive axle 9 is stationary or the drive roller 5 rotates faster than the drive roller due to the faster movement of the output-side transport roller pair 3b 9.
- the sheet lying between the drive rollers 3b and the pair of balls and rollers 5 on the output side can thus be freely accelerated within the alignment path.
- the freewheel bearing has a freewheel in the transport direction and locks against the transport direction. If the pair of balls and rollers on the input side also has such a freewheel, the paper sheet can be picked up non-destructively if it runs into the alignment path at a higher input speed (v 0 > v r ).
- the transport plate 6 and the stop 1 is in one Sectional view shown. They are V-shaped Recording 27 connected so that the paper sheet 2nd is recorded safely.
- the stop 1 has one sloping upward leg 28 on the transport plate 6 the embossed depressions 29.
- the invention has been described using the example of a printing device. It is clear that the invention also for alignment routes on other devices for processing sheets or documents can be used. It doesn't matter whether just one sheet is aligned or a document that spans several sheets, e.g. a brochure or a Envelope.
- the invention is thus in printing devices, copiers, Original scanners or in other devices Processing of documents can be used, for example in inserting systems, in collators, in document feeders or document discharge devices.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering Or Overturning Sheets (AREA)
Description
- Figur 1
- ein Druckgerät,
- Figur 2
- eine Ausrichtstrecke,
- Figur 3
- die Ausrichtstrecke in Aufsicht,
- Figur 4
- die Ausrichtstrecke in Ansicht und
- Figur 5
- einen Anschlag der Ausrichtstrecke.
- 1
- Anschlag
- 2
- Aufzeichnungsträger (Papierblatt)
- 3a
- vorderes Walzenpaar
- 3b
- hinteres Walzenpaar
- 4
- Kugel
- 5
- Antriebswalze
- 6
- Lauffläche
- 7
- Kugelkäfig
- 8
- Referenzkante
- 9
- Antriebsachse
- 10
- Freilauf
- 11
- Druckgerät
- 12
- Druckstation
- 13
- Eingabefächer
- 14
- Zuführkanal
- 15
- Externes Vorratsmodul
- 16
- Verbindungskanal (Tunnel)
- 17
- Fixierstation
- 18
- Ausgabepfad
- 19
- Papierausgabefächer
- 19a
- Ausgabe-Schnittstelle
- 20
- Gerätesteuerung
- 21
- Antrieb im Druckaggregat
- 22
- Antrieb im Tunnel
- 23
- Steuerung des Vorratsmoduls
- 24
- Eingangs-Schnittstelle
- 25
- Vorrats-Schnittstelle
- 26
- Anschlagsnahe Blattkante
- 26a
- hinterer Teil der Kante 26
- 26b
- vorderer Teil der Kante 26
- 27
- Aufnahme
- 28
- Schenkel
- 29
- Vertiefungen des Transportblechs (=Lauffläche)
- A =
- Haupttransportrichtung
- b =
- Abstand zwischen Anschlag und Eingriffspunkt Walze/Kugel
- S =
- Transportversatz (bei Einlauf)
- v0
- = Geschwindigkeit der Walzenpaare
- va =
- Geschwindigkeit der Rollen/Walzenanordung
- vr =
- Geschwindigkeits-Komponente in Transportrichtung
Claims (12)
- Verfahren zum Ausrichten eines blattförmigen Aufzeichnungsträgers (2) in einem Blattverarbeitungsgerät (11), wobei(a) der Aufzeichnungsträger (2) von einer Eingabeposition (bei 3a) über eine Ausrichtstrecke (6) in einer Transportrichtung (A) zu einer Ausgabeposition (bei 3b) transportiert wird,(b) der Aufzeichnungsträger (2) während der Transportbewegung quer zur Transportrichtung (A) zu einem Anschlag (1), an dem er ausgerichtet wird, bewegt wird,(c) der in Transportrichtung (A) hinten liegende Teil (26a) der anschlagseitigen Kante (26) des Aufzeichnungsträgers (2) vor deren vorderem Teil (26b) an den Anschlag (1) bewegt wird,(d) der Transport in der Transportrichtung (A) mittels mehrerer, längs der Transportrichtung (A) angeordneter, angetriebener Walzen (5) erfolgt, die jeweils eine zur Transportrichtung (A) geneigte Drehachse (9) aufweisen,(e) das Aufzeichnungsmaterial (2) an den Walzen (5) jeweils durch das Eigengewicht einer mit der Walze (5) zusammenwirkenden Kugel (4) an die Walze (5) angepreßt wird, wodurch eine Friktion zwischen Walze (5) und Aufzeichnungsträger (2) entsteht und(f) der Aufzeichnungsträger (2) in Transportrichtung (A) mit einem ausgangsseitigen Transportwalzenpaar (3b) rampengesteuert derart beschleunigt wird, dass am Ende (bei 3b) der Ausrichtstrecke ein konstanter Blattabstand aufeinanderfolgender Aufzeichnungsträger (2) erzeugt wird.
- Verfahren nach Anspruch 1, wobei über die Ausrichtstrecke (6) zwei jeweils selbständige Geräte (11, 15), insbesondere ein Aufzeichnungsträger-Vorratsmodul (15) mit einem Druckgerät (11), miteinander verbunden werden.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei ein zwischen der Antriebswalze (5) und dem Transportwalzenpaar (3b) liegender Aufzeichnungsträger (2) frei beschleunigt wird, weil zumindest die dem ausgangsseitigen Transportwalzenpaar (3b) am nächstenliegende Antriebswalze (5) über einen Freilauf (10) mit ihrer Antriebsachse (9) verbunden ist.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei während dem Ausrichten die Transportgeschwindigkeit in Transportrichtung (A) konstant ist.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei die Transportgeschwindigkeit in Transportrichtung (A) nach dem Ausrichten des Aufzeichnungsträgers (2) verändert wird.
- Vorrichtung zum Ausrichten eines blattförmigen Aufzeichnungsträgers (2) in einem Blattverarbeitungsgerät (11), insbesondere zur Durchführung eines Verfahrens nach einem der vorhergehenden Ansprüche, mit(a) einer Ausrichtstrecke (6) über die der Aufzeichnungsträger (2) von einer Eingabeposition (bei 3a) in einer Transportrichtung (A) zu einer Ausgabeposition (bei 3b) transportiert wird,(b) einem Anschlag (1), an den der Aufzeichnungsträger (2) während der Transportbewegung quer zur Transportrichtung (A) zum Ausrichten bewegt wird, wobei(c) eine Transporteinrichtung (4, 5, 9) vorgesehen ist, die mehrere, längs der Transportrichtung (A) angeordnete, angetriebene Walzen (5) umfaßt, die jeweils eine zur Transportrichtung (A) geneigte Drehachse (9) aufweisen,(d) wodurch der in Transportrichtung (A) hinten liegende Teil (26a) der anschlagseitigen Kante (26) des Aufzeichnungsträgers (2) zeitlich vor deren vorderem Teil (26b) an den Anschlag (1) bewegt wird,(e) an jeder Walze (5) jeweils eine mit der Walze (5) zusammenwirkende Kugel (4) vorgesehen ist, wodurch das Aufzeichnungsmaterial (2) an die Walze (5) angepreßt wird und eine Friktion zwischen Walze (5) und Aufzeichnungsträger (2) entsteht,(f) wobei ein ausgangsseitiges Transportwalzenpaar (3b) vorgesehen ist, das rampengesteuert beschleunigbar ist und(g) wobei die dem ausgangsseitigen Transportwalzenpaar (3b) nächstenliegende angetriebene Walze (5) über einen Freilauf (10) mit ihrer Antriebsachse (9) derart verbunden ist, dass der Aufzeichnungsträger (2) am Ende der Transportstrecke in Transportrichtung (A) frei beschleunigbar ist, so dass am Ende (bei 3b) der Ausrichtstrecke ein konstanter Blattabstand aufeinanderfolgender Aufzeichnungsträger (2) erzeugbar ist.
- Vorrichtung nach Anspruch 6, wobei das ausgangsseitige Transportwalzenpaar (3b) den Aufzeichnungsträger (2) in Transportrichtung (A, v0) transportiert.
- Vorrichtung nach Anspruch 6 oder 7, wobei die Antriebswalze (5) eine mit einer Reibungsschicht versehende Oberfläche aufweist, wobei die Reibungsschicht aus einem Polyurethan-Material besteht und einen Reibungskoefizienten zwischen 1 und 2 hat.
- Vorrichtung nach Anspruch 7 oder 8, wobei jeder Antriebswalze (5) eine frei in einem Kugelkäfig (7) gelagerte Kugel (4) zugeordnet ist, die insbesondere nur durch ihr Eigengewicht den vorbeilaufenden Aufzeichnungsträger (2) gegen die Antriebswalze (5) drückt, wodurch eine Friktion zwischen Antriebswalze (5) und Aufzeichnungsträger (2) entsteht.
- Vorrichtung nach einem der Ansprüche 7 bis 9, wobei mehrere angetriebene Kugel-Walzenpaare (4,5) vorgesehen sind, die jeweils so angeordnet sind, daß das kleinste, in dem Gerät verarbeitbare Format des Aufzeichnungsträgers (2) ständig mit mindestens einem Kugel-Walzenpaar (4, 5) im Eingriff ist.
- Druck- oder Kopiergerät mit einer Ausrichtvorrichtung nach einem der Ansprüche 7 bis 10, wobei die Ausrichtvorrichtung zwischen einer Blatt-Eingabestation (bei 3a) und einer Druckstation (12) angeordnet ist.
- Abtastgerät mit einer Ausrichtvorrichtung nach einem der Ansprüche 7 bis 10, wobei die Ausrichtvorrichtung zwischen einer Vorlagen-Eingabestation und einer Abtasteinrichtung angeordnet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19912234 | 1999-03-18 | ||
DE19912234 | 1999-03-18 | ||
PCT/EP2000/002374 WO2000056643A1 (de) | 1999-03-18 | 2000-03-17 | Verfahren und vorrichtung zur ausrichtung von einzelblättern in einem blattverarbeitungsgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1161394A1 EP1161394A1 (de) | 2001-12-12 |
EP1161394B1 true EP1161394B1 (de) | 2003-11-12 |
Family
ID=7901527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00920509A Expired - Lifetime EP1161394B1 (de) | 1999-03-18 | 2000-03-17 | Verfahren und vorrichtung zur ausrichtung von einzelblättern in einem blattverarbeitungsgerät |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1161394B1 (de) |
DE (1) | DE50004422D1 (de) |
WO (1) | WO2000056643A1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3929327A (en) * | 1974-04-01 | 1975-12-30 | Addressograph Multigraph | Document transport and registration apparatus |
US4266762A (en) * | 1979-08-29 | 1981-05-12 | Xerox Corporation | Sheet alignment and feeding apparatus |
JPS56127532A (en) * | 1980-03-13 | 1981-10-06 | Ichikoh Ind Ltd | Aligning apparatus |
US5582087A (en) * | 1990-06-11 | 1996-12-10 | Roll Systems, Inc. | High speed sheet feeder |
JPH05294500A (ja) * | 1992-04-17 | 1993-11-09 | Tokyo Electric Co Ltd | 用紙搬送装置 |
JPH08259049A (ja) * | 1995-03-22 | 1996-10-08 | Ace Denken:Kk | 媒体幅寄せ装置 |
DE19514420C1 (de) * | 1995-04-19 | 1997-03-06 | Fraunhofer Ges Forschung | Dampfbremse für den Einsatz zur Wärmedämmung von Gebäuden |
-
2000
- 2000-03-17 EP EP00920509A patent/EP1161394B1/de not_active Expired - Lifetime
- 2000-03-17 WO PCT/EP2000/002374 patent/WO2000056643A1/de active IP Right Grant
- 2000-03-17 DE DE50004422T patent/DE50004422D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1161394A1 (de) | 2001-12-12 |
WO2000056643A1 (de) | 2000-09-28 |
DE50004422D1 (de) | 2003-12-18 |
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