EP0946364A1 - Document-printing arrangement with document-collection station - Google Patents

Document-printing arrangement with document-collection station

Info

Publication number
EP0946364A1
EP0946364A1 EP97951791A EP97951791A EP0946364A1 EP 0946364 A1 EP0946364 A1 EP 0946364A1 EP 97951791 A EP97951791 A EP 97951791A EP 97951791 A EP97951791 A EP 97951791A EP 0946364 A1 EP0946364 A1 EP 0946364A1
Authority
EP
European Patent Office
Prior art keywords
drum
document
electric motor
paper web
continuous paper
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
EP97951791A
Other languages
German (de)
French (fr)
Other versions
EP0946364B1 (en
Inventor
Bernhard Brings
Richard Düsterhus
Bernd Reimer
Pamela Szlezys
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.)
Wincor Nixdorf International GmbH
Original Assignee
Wincor Nixdorf GmbH and Co KG
Wincor Nixdorf International 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
Application filed by Wincor Nixdorf GmbH and Co KG, Wincor Nixdorf International GmbH filed Critical Wincor Nixdorf GmbH and Co KG
Publication of EP0946364A1 publication Critical patent/EP0946364A1/en
Application granted granted Critical
Publication of EP0946364B1 publication Critical patent/EP0946364B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/50—Piling apparatus of which the discharge point moves in accordance with the height to the pile
    • B65H29/51—Piling apparatus of which the discharge point moves in accordance with the height to the pile piling by collecting on the periphery of cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/0054—Handling sheets of differing lengths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/20—Acceleration or deceleration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing

Definitions

  • the invention relates to a receipt printing device according to the preamble of claim 1.
  • a receipt printing device of the type mentioned is known from international patent application WO 94/22117 AI.
  • a document collecting station designed as a drum is used, as described in German laid-open specification DE 42 25 418 AI.
  • the drum is only rotated when a document has been transported under the clamping elements by the paper transport device.
  • the document is pushed and compressed against the actuating lever of the clamping elements that protrudes from the inside of the still-resting drum, which leads to the formation of bulges of the document between the printing station and the drum. Since the cutting device is also arranged in the area of the bump formation, the covering bump leads to an unacceptably high cut tolerance.
  • the object of the invention is therefore to propose a receipt printing device of the type mentioned, in which buckling of the receipt is avoided.
  • the invention is based on the consideration that buckling of the document is avoided if the drum, at the point in time at which the front edge of the continuous paper web tangentially hits the outer surface of the drum, the peripheral speed of the drum with the feed speed of the continuous paper web coincides, the actuating levers of the clamping elements thus lead a short distance from the paper edge being transported forward.
  • a light barrier responding to the front edge of the continuous paper web is arranged in the paper path, and in its rest position the drum assumes a second angular position, which is set back by a predeterminable angular dimension with respect to a first angular position — viewed in the direction of rotation of the drum.
  • the drum is accelerated by the light barrier when the leading edge of the continuous paper web is reported, so that it has reached the first angular position at the time when the leading edge of the continuous paper web has entered the transfer position and the peripheral speed of the drum with the transport speed the continuous paper web matches. This ensures that the front edge of the continuous paper web no longer collides with the actuating levers of the clamping elements. So there is a compression of the paper edge and a bulge in the receipt. It is therefore also possible to process particularly brittle papers or those with little inherent rigidity.
  • An adjustment of the clamping elements between their release position and their clamping position during the rotation of the drum can be achieved in a particularly simple manner in that the adjustment is carried out by a specially provided electric motor.
  • the electric motors are designed as stepper motors.
  • the paper feed speed is known from the step pulse sequence of the electric motor driving the printing roller. It is therefore possible in a simple manner to apply step pulses to the electric motor of the drum which define an acceleration ramp which is adapted to the peripheral speed of the printing roller which conveys the continuous paper web through the printing station, the electric motor of the drum with the detection of the leading edge of the continuous paper web by the Photo eye is started.
  • the current length of a document can also be determined from the number of step impulses of the electric motor driving the printing roller and, when a predetermined target document length is reached, the electric motors of the paper transport device, the printing roller and the drum can be stopped and the cutting device be operated.
  • the single figure shows a schematic sectional view of a receipt printing device with receipt collecting station. Detailed description of the invention
  • a document printing device 8 shown schematically in the figure contains a paper path 10, on which a paper transport device 12, a printing station 14, a cutting device 16 for separating individual documents 18 from a continuous paper web 20 and a document collecting station 22 for separated documents 18 are arranged.
  • the continuous paper web 20 can be rolled up on a roll or Z-folded. It can be blank or provided with pre-printed forms which are only filled out in the printing station 14.
  • the paper path 10 extends from an input area 24 for the input of the continuous paper web 20 to an output slot 26 for the output of finished printed documents 18.
  • the paper transport device 12 is connected to the input area 24.
  • These essentially consist of a pair of drive rollers 30 driven by a first stepper motor 28, which is arranged in front of the printing station 14.
  • the latter comprises a thermal print bar 32 arranged above the paper path and a pressure roller 34 arranged opposite it below the paper path 10 and driven by a second stepper motor 33.
  • a light barrier 48 is inserted into the paper path 10, which acts on the front edge of the endless pass - Pierbahn 20 appeals.
  • the cutting device 16 In the paper path 10, downstream of the light barrier 48, there is the cutting device 16 with a knife designed as a cutting roller 35, which interacts with a cutting rail 36.
  • the cutting roller 35 can be displaced by a third stepper motor 37 perpendicular to the transport direction of the continuous paper web 20 over its entire width.
  • the cutting device 16 serves to cut off the documents 18 from the continuous paper web 20 and thus to separate them.
  • the cutting device 16 is followed by the document collecting station 22, the basic structure and function of which is described in DE 42 25 418 AI and is therefore only explained here to the extent that this is necessary for an understanding of the present invention.
  • the document collecting station 22 contains a drum 40 which can be driven by a fourth stepper motor 38 in both directions of rotation and which transports the individual documents 18 in a pair of pliers 42.
  • clamping elements 44 which are arranged on the outside of the drum 40, and which are adjustable between a clamping position (shown in solid lines) on its outer surface and a released position (shown in broken lines) regardless of the rotary drive of the drum 40. are cash. But while in the arrangement according to DE 42 25 418 AI the adjustment of the clamping elements and the drive of the drum is carried out by a single drive with which these elements can be coupled, the clamping elements 44 are operated here by a separate drive, a fifth stepper motor 46 . This is able to rotate an adjusting ring 41, which pivots the clamping elements and is arranged concentrically to the drum 40, relative to the drum 40 in both directions of rotation. The pliers 42 are opened in the clockwise direction when the adjusting ring 41 is rotated and closed in the counterclockwise direction. An adjustment of the clamping elements 44 during the rotation of the drum 40 is thus possible.
  • the five stepper motors 28, 33, 37, 38 and 46, the thermal print bar 32 and the light barrier 48 are connected to a control device 50, to which the print jobs are fed from outside the document printing device 8 via a data line 52.
  • the document processing process begins with the continuous paper web 20 being transported along the paper path 10 until the light barrier 48 reports the front edge of the continuous paper web 20.
  • the thermal pressure bar 32 is thus at a defined distance from the front edge.
  • the step impulses of the second step motor 33 are counted from then on, so that the printing of a document can take place with correct lines. Since the printing process with the thermal print bar is accompanied by a continuous paper feed, the time that elapses before the front edge of the continuous paper web 20 hits the drum 40, and thus also the number of step pulses that are known to the second stepper motor 33 must be fed.
  • the fourth stepping motor 38 is acted upon by a step pulse sequence which corresponds to a defined acceleration ramp of the drum 40 up to a speed which corresponds to the feed speed of the continuous paper web 20 Corresponds to the peripheral speed.
  • the step pulse sequence is selected such that the drum 40 has just reached its rotational angle position 0 ° at the time of arrival of the front edge of the continuous paper web 20 and rotates at a peripheral speed corresponding to the feed speed of the continuous paper web 20. In this position, the clamping elements are lifted off the outer surface of the drum and are in the position 44 'shown in broken lines.
  • the fifth stepper motor 46 is energized so that the adjusting ring 41 is rotated counterclockwise relative to the drum 40, whereby the pliers 42 closes during the rotation of the drum.
  • the document transport device 12, the printing roller 34 and the drum 40 continue to be operated in the forward transport direction of the continuous paper web 20 until the desired length of the document 18 is reached. Then the first, second and fourth stepper motors 28, 33, 38 are acted upon by step pulses of a defined braking ramp, which is dimensioned such that the continuous paper web 20 between the pressure roller 34 and the drum 40 is always taut.
  • the three stepper motors 28, 33, 38 are at a standstill, the lower edge of the document 18 is on the cutting line of the cutting device 16, which is now actuated by supplying the third stepper motor 37 with a corresponding pulse sequence.
  • first stepper motor 28 and the second stepper motor 33 are operated against the feed direction of the paper transport device 12, as a result of which the continuous paper web 20 is conveyed back until the front edge thereof releases the light barrier 48 again.
  • the fourth stepper motor 38 rotates the drum 40 counterclockwise until the rotational angle position -x ° is reached again.
  • the drum 40 For each document 18 to be picked up, the drum 40 makes one counterclockwise rotation. If a number of documents 18 determined by a current print job is stored in the pliers 42, the direction of rotation of the drum 40 is reversed and the bundle of documents is made available in the output slot 26 for removal. For this purpose, the pliers 42 are opened.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handling Of Sheets (AREA)
  • Discharge By Other Means (AREA)

Abstract

PCT No. PCT/DE97/02724 Sec. 371 Date Apr. 5, 1999 Sec. 102(e) Date Apr. 5, 1999 PCT Filed Nov. 20, 1997 PCT Pub. No. WO98/28137 PCT Pub. Date Jul. 2, 1998Document-printing arrangement (8) having a cutting arrangement (16) and a document collection station (22), which is designed as a drum (40) equipped with clamping elements (44). Starting from a rest position (-x DEG ), the drum (40) is accelerated in such a way that when the leading edge of a document arrives underneath the clamping elements (44), said drum has a circumferential speed which corresponds to the transport speed of a paper transport arrangement (12).

Description

Belegdruckeinrichtung mit Belegsammelstation Document printing device with document collecting station
Technisches GebietTechnical field
Die Erfindung betrifft eine Belegdruckeinrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a receipt printing device according to the preamble of claim 1.
Stand der TechnikState of the art
Eine Belegdruckeinrichtung der genannten Art ist aus der internationalen Patentanmeldung WO 94/22117 AI bekannt. In dieser kommt eine als Trommel ausgebildete Belegsammelstation zum Einsatz, wie sie in der deutschen Offenle- gungsschrift DE 42 25 418 AI beschrieben ist. Die Trommel wird erst dann in Drehbewegung versetzt, wenn von der Papiertransporteinrichtung ein Beleg unter die Klemmelemente transportiert worden ist . Dabei wird der Beleg gegen die aus dem Inneren der noch ruhenden Trommel ragenden Betätigungshebel der Klemmelemente geschoben und gestaucht, was zu einer Beulenbildung des Belegs zwischen der Druckstation und der Trommel führt . Da im Bereich der Beulenbildung auch die Schneideinrichtung angeordnet ist, führt die Belegbeule zu einer unvertretbar hohen Schnitt- lagentoleranz .A receipt printing device of the type mentioned is known from international patent application WO 94/22117 AI. In this case, a document collecting station designed as a drum is used, as described in German laid-open specification DE 42 25 418 AI. The drum is only rotated when a document has been transported under the clamping elements by the paper transport device. The document is pushed and compressed against the actuating lever of the clamping elements that protrudes from the inside of the still-resting drum, which leads to the formation of bulges of the document between the printing station and the drum. Since the cutting device is also arranged in the area of the bump formation, the covering bump leads to an unacceptably high cut tolerance.
Aufgabe der Erfindung ist es daher, eine Belegdruckeinrichtung der genannten Art vorzuschlagen, bei der eine Beulenbildung des Belegs vermieden wird.The object of the invention is therefore to propose a receipt printing device of the type mentioned, in which buckling of the receipt is avoided.
Die Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelös . Darstellung der ErfindungThe object is achieved by the characterizing features of claim 1. Presentation of the invention
Die Erfindung geht von der Überlegung aus, daß eine Beulenbildung des Belegs vermieden wird, wenn die Trommel zu dem Zeitpunkt, zu dem die Vorderkante der Endlospapier- bahn tangential auf die Mantelfläche der Trommel auf- trifft, die Umfangsgeschwindigkeit der Trommel mit der Vorschubgeschwindigkeit der Endlospapierbahn übereinstimmt, die Betätigungshebel der Klemmelemente also in geringem Abstand der vorwärts transportierten Papierkante vorauseilen.The invention is based on the consideration that buckling of the document is avoided if the drum, at the point in time at which the front edge of the continuous paper web tangentially hits the outer surface of the drum, the peripheral speed of the drum with the feed speed of the continuous paper web coincides, the actuating levers of the clamping elements thus lead a short distance from the paper edge being transported forward.
Dazu ist im Papierweg eine auf die Vorderkante der Endlospapierbahn ansprechende Lichtschranke angeordnet, und die Trommel nimmt in ihrer Ruhestellung eine zweite Win- kelposition ein, die gegenüber einer ersten Winkelpositi- on -in Drehrichtung der Trommel gesehen- um ein vorgebbares Winkelmaß zurückversetzt ist. Ausgehend von der zweiten Winkelposition wird die Trommel auf die Meldung der Vorderkante der Endlospapierbahn durch die Lichtschranke derart beschleunigt, daß sie zum Zeitpunkt des Einlaufens der Vorderkante der Endlospapierbahn in die Übergabeposition die erste Winkelposition erreicht hat und die Umf ngsgeschwindigkeit der Trommel mit der Transportge- schwindigkeit der Endlospapierbahn übereinstimmt . Dadurch wird erreicht, daß die Vorderkante der Endlospapierbahn nicht mehr mit den Betätigungshebeln der Klemmelemente kollidiert. Eine Stauchung der Papierkante und eine Beulenbildung im Beleg verbleibt also. Es können deshalb auch besonders spröde Papiere oder solche mit einer geringen Eigenstei igkeit verarbeitet werden.For this purpose, a light barrier responding to the front edge of the continuous paper web is arranged in the paper path, and in its rest position the drum assumes a second angular position, which is set back by a predeterminable angular dimension with respect to a first angular position — viewed in the direction of rotation of the drum. Starting from the second angular position, the drum is accelerated by the light barrier when the leading edge of the continuous paper web is reported, so that it has reached the first angular position at the time when the leading edge of the continuous paper web has entered the transfer position and the peripheral speed of the drum with the transport speed the continuous paper web matches. This ensures that the front edge of the continuous paper web no longer collides with the actuating levers of the clamping elements. So there is a compression of the paper edge and a bulge in the receipt. It is therefore also possible to process particularly brittle papers or those with little inherent rigidity.
Ein weiterer Vorteil der erfindungsgemäßen Belegdruckeinrichtung ist darin zu sehen, daß auch Druckverfahren mit einer großen Papiervorschubgeschwindigkeit und solche mit kontinuierlichem Papiervorschub eingesetzt werden können. Dieser Vorteil wird in Fortbildung der Erfindung dadurch genutzt, daß die Druckstation eine Thermodruckleiste umfaßt.Another advantage of the receipt printing device according to the invention can be seen in the fact that printing processes with a high paper feed speed and those with a continuous paper feed can also be used. This advantage is further developed in the invention used that the printing station includes a thermal print bar.
Eine Verstellung der Klemmelemente zwischen ihrer Freigabestellung und ihrer Klemmstellung während der Rotation der Trommel ist in besonders einfacher Weise dadurch realisierbar, daß die Verstellung durch einen eigens dafür vorgesehenen Elektromotor erfolgt .An adjustment of the clamping elements between their release position and their clamping position during the rotation of the drum can be achieved in a particularly simple manner in that the adjustment is carried out by a specially provided electric motor.
In einer vorteilhaften Weiterbildung der Erfindung sind die Elektromotoren als Schrittmotoren ausgebildet. Die Papiervorschub-Geschwindigkeit ist durch die Schrittimpulsfolge des die Druckwalze antreibenden Elektromotors bekannt. Deshalb ist es in einfacher Weise möglich, den Elektromotor der Trommel mit Schrittimpulsen zu beaufschlagen, die eine an die Umfangsgeschwindigkeit der -die Endlospapierbahn durch die Druckstation fördernden- Druckwalze angepaßte Beschleunigungsrampe definieren, wobei der Elektromotor der Trommel mit der Erfassung der Vorderkante der Endlospapierbahn durch die Lichtschranke gestartet wird. Ausgehend von der Vorderkante der Endlos- papierbahn kann zugleich die aktuelle Länge eines Belegs aus der Zahl der Schrittimpulse des die Druckwalze antreibenden Elektromotors ermittelt und bei Erreichen einer vorgegebenen Soll-Beleglänge die Elektromotoren der Papiertransporteinrichtung, der Druckwalze und der Trom- mel angehalten und die Schneideinrichtung betätigt werden.In an advantageous development of the invention, the electric motors are designed as stepper motors. The paper feed speed is known from the step pulse sequence of the electric motor driving the printing roller. It is therefore possible in a simple manner to apply step pulses to the electric motor of the drum which define an acceleration ramp which is adapted to the peripheral speed of the printing roller which conveys the continuous paper web through the printing station, the electric motor of the drum with the detection of the leading edge of the continuous paper web by the Photo eye is started. Starting from the front edge of the continuous paper web, the current length of a document can also be determined from the number of step impulses of the electric motor driving the printing roller and, when a predetermined target document length is reached, the electric motors of the paper transport device, the printing roller and the drum can be stopped and the cutting device be operated.
Kurzbeschreibung der ZeichnungBrief description of the drawing
Die einzige Figur zeigt eine schematische Schnittdarstellung einer Belegdruckeinrichtung mit Belegsammelstation. Detaillierte Beschreibung der ErfindungThe single figure shows a schematic sectional view of a receipt printing device with receipt collecting station. Detailed description of the invention
Eine in der Figur schematisch dargestellte Belegdruckeinrichtung 8 enthält einen Papierweg 10, an dem eine Papiertransporteinrichtung 12, eine Druckstation 14, eine Schneideinrichtung 16 zum Abtrennen einzelner Belege 18 von einer Endlospapierbahn 20 und eine Belegsammelstation 22 für abgetrennte Belege 18 angeordnet sind. Die Endlospapierbahn 20 kann auf einer Rolle aufgerollt oder Z- gefaltet sein. Sie kann blanko oder mit vorgedruckten Formularen versehen sein, die in der Druckstation 14 nur noch ausgefüllt werden.A document printing device 8 shown schematically in the figure contains a paper path 10, on which a paper transport device 12, a printing station 14, a cutting device 16 for separating individual documents 18 from a continuous paper web 20 and a document collecting station 22 for separated documents 18 are arranged. The continuous paper web 20 can be rolled up on a roll or Z-folded. It can be blank or provided with pre-printed forms which are only filled out in the printing station 14.
Der Papierweg 10 erstreckt sich von einem Eingangsbereich 24 zur Eingabe der Endlospapierbahn 20 bis zu einem Ausgabeschlitz 26 zur Ausgabe fertig bedruckter Belege 18. An den Eingangsbereich 24 schließt sich die Papiertransporteinrichtung 12 an. Diese bestehen im wesentlichen aus einem von einem ersten Schrittmotor 28 angetriebenen Antriebsrollenpaar 30, das vor der Druckstation 14 angeordnet ist. Letztere umfaßt eine über dem Papierweg angeord- nete Thermodruckleiste 32 und eine dieser gegenüber unterhalb des Papierweges 10 angeordnete, von einem zweiten Schrittmotor 33 angetriebene Druckwalze 34. Hinter der Druckstation 14 ist eine Lichtschranke 48 in den Papierweg 10 eingefügt, die auf die Vorderkante der Endlospa- pierbahn 20 anspricht.The paper path 10 extends from an input area 24 for the input of the continuous paper web 20 to an output slot 26 for the output of finished printed documents 18. The paper transport device 12 is connected to the input area 24. These essentially consist of a pair of drive rollers 30 driven by a first stepper motor 28, which is arranged in front of the printing station 14. The latter comprises a thermal print bar 32 arranged above the paper path and a pressure roller 34 arranged opposite it below the paper path 10 and driven by a second stepper motor 33. Behind the printing station 14, a light barrier 48 is inserted into the paper path 10, which acts on the front edge of the endless pass - Pierbahn 20 appeals.
Im Papierweg 10, der Lichtschranke 48 nachgeordnet, befindet sich die Schneideinrichtung 16 mit einem als Schneidrolle 35 ausgebildeten Messer, das mit einer Schneidschiene 36 zusammenwirkt. Die Schneidrolle 35 ist von einem dritten Schrittmotor 37 senkrecht zur Transportrichtung der Endlospapierbahn 20 über deren gesamte Breite verschiebbar. Die Schneideinrichtung 16 dient dazu, die Belege 18 von der Endlospapierbahn 20 abzuschneiden und so zu vereinzeln. An die Schneideinrichtung 16 schließt sich die Belegsammelstation 22 an, deren prinzipieller Aufbau und Funktion in der DE 42 25 418 AI beschrieben ist und deshalb hier nur insoweit erläutert wird, als dies für das Verständnis der vorliegenden Erfindung notwendig ist. Die Belegsammelstation 22 enthält eine von einem vierten Schrittmotor 38 in beiden Drehrichtungen antreibbare Trommel 40, die die einzelnen Belege 18 in einer Zange 42 transportiert. Diese ist aus Klemmelementen 44 gebildet, die auf der Au- ßenseite der Trommel 40 angeordnet sind, und die zwischen einer an deren Mantelfläche anliegenden Klemmstellung (mit durchgezogenen Linien dargestellten) und einer (strichpunktiert dargestellten) abgehobenen Freigabestellung unabhängig vom Drehantrieb der Trommel 40 verstell- bar sind. Während aber bei der Anordnung nach der DE 42 25 418 AI die Verstellung der Klemmelemente und der Antrieb der Trommel durch einen einzigen Antrieb erfolgt, mit dem diese Elemente wahlweise kuppelbar sind, werden die Klemmelemente 44 hier von einem separaten Antrieb, einem fünften Schrittmotor 46 betätigt. Dieser vermag einen die Klemmelemente verschwenkenden, konzentrisch zur Trommel 40 angeordneten Stellring 41 relativ zu der Trommel 40 in beiden Drehrichtungen zu drehen. Die Zange 42 wird bei Drehung des Stellrings 41 im Uhrzeigersinn ge- öffnet und bei Drehung im Gegenuhrzeigersinn geschlossen. Damit ist eine Verstellung der Klemmelemente 44 während der Drehung der Trommel 40 möglich.In the paper path 10, downstream of the light barrier 48, there is the cutting device 16 with a knife designed as a cutting roller 35, which interacts with a cutting rail 36. The cutting roller 35 can be displaced by a third stepper motor 37 perpendicular to the transport direction of the continuous paper web 20 over its entire width. The cutting device 16 serves to cut off the documents 18 from the continuous paper web 20 and thus to separate them. The cutting device 16 is followed by the document collecting station 22, the basic structure and function of which is described in DE 42 25 418 AI and is therefore only explained here to the extent that this is necessary for an understanding of the present invention. The document collecting station 22 contains a drum 40 which can be driven by a fourth stepper motor 38 in both directions of rotation and which transports the individual documents 18 in a pair of pliers 42. This is formed from clamping elements 44, which are arranged on the outside of the drum 40, and which are adjustable between a clamping position (shown in solid lines) on its outer surface and a released position (shown in broken lines) regardless of the rotary drive of the drum 40. are cash. But while in the arrangement according to DE 42 25 418 AI the adjustment of the clamping elements and the drive of the drum is carried out by a single drive with which these elements can be coupled, the clamping elements 44 are operated here by a separate drive, a fifth stepper motor 46 . This is able to rotate an adjusting ring 41, which pivots the clamping elements and is arranged concentrically to the drum 40, relative to the drum 40 in both directions of rotation. The pliers 42 are opened in the clockwise direction when the adjusting ring 41 is rotated and closed in the counterclockwise direction. An adjustment of the clamping elements 44 during the rotation of the drum 40 is thus possible.
Die fünf Schrittmotoren 28, 33, 37, 38 und 46, die Thermodruckleiste 32 und die Lichtschranke 48 sind mit einer Steuereinrichtung 50 verbunden, der über eine Datenleitung 52 die Druckaufträge von außerhalb der Belegdruckeinrichtung 8 zugeführt werden. Diese steuert die Belegdruckeinrichtung 8 in der nachfolgend für einen Belegbearbeitungsvorgang beschriebenen Weise, wobei davon ausge- gangen wird, daß die Trommel 40 in einer Drehwinkelposi- tion -x° steht. In dieser Position befinden sich die von der Mantelfläche der Trommel 40 abgehobenen Klemmelemente in einer punktiert dargestellten Position 44" unterhalb der Berührungslinie der Endlospapierbahn 20 mit der Trom- mel 40.The five stepper motors 28, 33, 37, 38 and 46, the thermal print bar 32 and the light barrier 48 are connected to a control device 50, to which the print jobs are fed from outside the document printing device 8 via a data line 52. This controls the document printing device 8 in the manner described below for a document processing operation, it being assumed that the drum 40 is in an angle of rotation position. tion -x ° stands. In this position, the clamping elements lifted from the outer surface of the drum 40 are in a position 44 ″ shown in dotted lines below the line of contact of the continuous paper web 20 with the drum 40.
Der Belegbearbeitungsvorgang beginnt damit, daß die Endlospapierbahn 20 so weit entlang dem Papierweg 10 transportiert wird, bis die Lichtschranke 48 die Vorderkante der Endlospapierbahn 20 meldet. Damit hat die Thermo- druckleiste 32 einen definierten Abstand zu der Vorderkante. Die Schrittimpulse des zweiten Schrittmotors 33 werden von da an mitgezählt, so daß das Bedrucken eines Belegs zeilenrichtig erfolgen kann. Da der Druckvorgang mit der Thermodruckleiste mit einem kontinuierlichen Pa- piervorschub einhergeht, ist die Zeit, die bis zum Auf- treffen der Vorderkante der Endlospapierbahn 20 auf die Trommel 40 vergeht, und damit auch die Zahl der Schrittimpulse bekannt, die dem zweiten Schrittmotor 33 noch zugeführt werden müssen. Mit Erreichen eines durch die Geo- metrie der Belegdruckeinrichtung 8 und die Umfangsgeschwindigkeit der Druckwalze 34 vorgegebenen Schrittes wird der vierte Schrittmotor 38 mit einer Schrittimpuls- folge beaufschlagt, die einer definierten Beschleunigungsrampe der Trommel 40 bis auf eine mit der Vorschub- geschwindigkeit der Endlospapierbahn 20 übereinstimmende Umfangsgeschwindigkeit entspricht. Die Schrittimpulsfolge ist so gewählt, daß die Trommel 40 ihre Drehwinkelposition 0° zum Eintreffenszeitpunkt der Vorderkante der Endlospapierbahn 20 gerade erreicht hat und sich mit ei- ner der Vorsc ubgeschwindigkeit der Endlospapierbahn 20 entsprechenden Umfangsgeschwindigkeit dreht. In dieser Position sind die Klemmelemente von der Mantelfläche der Trommel abgehoben und befinden sich in der strichpunktiert dargestellten Position 44'. Sobald die Trommel 40 die Drehwinkelposition 0° überfahren hat, wird der fünfte Schrittmotor 46 so bestromt, daß der Stellring 41 relativ zur Trommel 40 im Gegenuhrzeigersinn gedreht wird, wodurch sich während der Drehung der Trommel die Zange 42 schließt.The document processing process begins with the continuous paper web 20 being transported along the paper path 10 until the light barrier 48 reports the front edge of the continuous paper web 20. The thermal pressure bar 32 is thus at a defined distance from the front edge. The step impulses of the second step motor 33 are counted from then on, so that the printing of a document can take place with correct lines. Since the printing process with the thermal print bar is accompanied by a continuous paper feed, the time that elapses before the front edge of the continuous paper web 20 hits the drum 40, and thus also the number of step pulses that are known to the second stepper motor 33 must be fed. When a step predetermined by the geometry of the receipt printing device 8 and the circumferential speed of the printing roller 34 is reached, the fourth stepping motor 38 is acted upon by a step pulse sequence which corresponds to a defined acceleration ramp of the drum 40 up to a speed which corresponds to the feed speed of the continuous paper web 20 Corresponds to the peripheral speed. The step pulse sequence is selected such that the drum 40 has just reached its rotational angle position 0 ° at the time of arrival of the front edge of the continuous paper web 20 and rotates at a peripheral speed corresponding to the feed speed of the continuous paper web 20. In this position, the clamping elements are lifted off the outer surface of the drum and are in the position 44 'shown in broken lines. As soon as the drum 40 has passed the rotational angle position 0 °, the fifth stepper motor 46 is energized so that the adjusting ring 41 is rotated counterclockwise relative to the drum 40, whereby the pliers 42 closes during the rotation of the drum.
Die Belegtransporteinrichtung 12, die Druckwalze 34 und die Trommel 40 werden so lange in Vorwärtstransportrich- tung der Endlospapierbahn 20 weiterbetrieben, bis die Sollänge des Belegs 18 erreicht ist. Darauf werden der erste, zweite und vierte Schrittmotor 28, 33, 38 mit Schrittimpulsen einer definierten Abbremsrampe beaufschlagt, die so bemessen ist, daß die Endlospapierbahn 20 zwischen der Druckwalze 34 und der Trommel 40 stets straff gespannt ist. Bei Stillstand der drei Schrittmotoren 28, 33, 38 befindet sich der untere Rand des Belegs 18 auf der Schneidelinie der Schneideinrichtung 16, die nunmehr durch Versorgung des dritten Schrittmotors 37 mit einer entsprechenden Impulsfolge betätigt wird. Danach wird der erste Schrittmotor 28 und der zweite Schrittmotor 33 gegen die Einzugrichtung der Papiertransportein- richtung 12 betrieben, wodurch die Endlospapierbahn 20 zurückbefördert wird, bis deren Vorderkante die Lichtschranke 48 wieder freigibt. Der vierte Schrittmotor 38 dreht die Trommel 40 im Gegenuhrzeigersinn, bis die Drehwinkelposition -x° wieder erreicht ist.The document transport device 12, the printing roller 34 and the drum 40 continue to be operated in the forward transport direction of the continuous paper web 20 until the desired length of the document 18 is reached. Then the first, second and fourth stepper motors 28, 33, 38 are acted upon by step pulses of a defined braking ramp, which is dimensioned such that the continuous paper web 20 between the pressure roller 34 and the drum 40 is always taut. When the three stepper motors 28, 33, 38 are at a standstill, the lower edge of the document 18 is on the cutting line of the cutting device 16, which is now actuated by supplying the third stepper motor 37 with a corresponding pulse sequence. Then the first stepper motor 28 and the second stepper motor 33 are operated against the feed direction of the paper transport device 12, as a result of which the continuous paper web 20 is conveyed back until the front edge thereof releases the light barrier 48 again. The fourth stepper motor 38 rotates the drum 40 counterclockwise until the rotational angle position -x ° is reached again.
Für jeden aufzunehmenden Beleg 18 vollführt die Trommel 40 eine Umdrehung im Gegenuhrzeigersinn. Ist eine von einem laufenden Druckauftrag bestimmte Anzahl von Belegen 18 in der Zange 42 abgelegt, erfolgt eine Drehrichtungs- umkehr der Trommel 40 und das Belegbündel wird im Ausga- beschlitz 26 zur Entnahme bereitgestellt. Hierzu wird die Zange 42 geöffnet. For each document 18 to be picked up, the drum 40 makes one counterclockwise rotation. If a number of documents 18 determined by a current print job is stored in the pliers 42, the direction of rotation of the drum 40 is reversed and the bundle of documents is made available in the output slot 26 for removal. For this purpose, the pliers 42 are opened.

Claims

Patentansprüche claims
1. Belegdruckeinrichtung (8), in deren Papierweg (10) eine durch einen ersten Elektromotor (28) angetriebene Papiertransporteinrichtung (12) , eine Druckstation (14) , eine Schneideinrichtung (16) zum Abtrennen einzelner Belege (18) von einer Endlospapierbahn (20) und eine Belegsammelstation (22) für abgetrennte Belege angeordnet sind, deren Belegsammelstation (22) als durch einen vierten Elektromotor (38) drehbare Trommel (40) ausgebildet ist, auf deren Außenseite zwischen einer an der Mantelfläche anliegenden Klemmstellung und einer abgehobenen Freigabestellung unabhängig vom Drehantrieb (28) der Trommel (40) verstellbare Klemmelemente (44) angeordnet sind, wobei ein Beleg (18) an einer Über- gabepoεition bei einer bestimmten ersten Winkelposition (0°) der Trommel (40) relativ zum Papierweg (10) unter die abgehobenen Klemmelemente (44) zu laufen vermag, dadu r ch gekenn z e i chne t , daß im Papierweg (10) eine auf die Vorderkante der Endlospapierbahn (20) ansprechende Lichtschranke (48) angeordnet ist, und daß die Trommel (40) in ihrer Ruhestellung eine zweite Winkelposition (-x°) einnimmt, die gegenüber der ersten Winkelposition (0°) -in Drehrichtung der Trommel (40) gesehen- um ein vorgebbares Winkelmaß zurückversetzt ist, und ausgehend von der zweiten Winkelposition (-x°) auf die Meldung der Vorderkante der Endlospapierbahn (20) derart be- schleunigt wird, daß die Trommel (40) zum Zeitpunkt des Einlaufens der Vorderkante der Endlospapierbahn (20) in die Übergabeposition die erste Winkelposition (0°) erreicht hat und die Umfangsgeschwindigkeit der Trommel (40) mit der Transportgeschwindigkeit der Pa- piertransporteinrichtung (12) übereinstimmt. 1. Document printing device (8), in the paper path (10) of which a paper transport device (12) driven by a first electric motor (28), a printing station (14), a cutting device (16) for separating individual documents (18) from a continuous paper web (20 ) and a document collecting station (22) for separated documents are arranged, the document collecting station (22) being designed as a drum (40) rotatable by a fourth electric motor (38), on the outside of which between a clamping position resting on the lateral surface and a raised release position independently of Rotary drive (28) of the drum (40) adjustable clamping elements (44) are arranged, with a document (18) at a transfer position at a certain first angular position (0 °) of the drum (40) relative to the paper path (10) below lifted clamping elements (44) is able to run, that is, that the light path in the paper path (10) responds to the front edge of the continuous paper web (20) tendril (48) is arranged, and that the drum (40) in its rest position assumes a second angular position (-x °), compared to the first angular position (0 °) - seen in the direction of rotation of the drum (40) - by a predeterminable angular dimension is set back, and starting from the second angular position (-x °) on the message of the front edge of the continuous paper web (20) is accelerated in such a way that the drum (40) at the time of entry of the front edge of the continuous paper web (20) into the transfer position has reached the first angular position (0 °) and the peripheral speed of the drum (40) matches the transport speed of the paper transport device (12).
2. Belegdruckeinrichtung nach Anspruch 1, dadu r c h ge kenn z e i c hne t , daß die Druckstation (14) eine Thermodruckleiste (32) umfaßt, der eine durch einen zweiten Elektromotor (33) drehbare Druckwalze (34) gegenübersteht.2. Document printing device according to claim 1, so that the printing station (14) comprises a thermal printing strip (32) which is opposed by a printing roller (34) which can be rotated by a second electric motor (33).
3. Belegdruckeinrichtung nach Anspruch 1 oder 2, da du r ch gekennz e i c hne t , daß die Klemmelemente (44) während der Rotation der Trommel (40) durch einen fünften Elektromotor (46) zwischen ihrer Freigabestellung und ihrer Klemmstellung verstellbar sind.3. Document printing device according to claim 1 or 2, since you r ch marked that the clamping elements (44) can be adjusted during their rotation of the drum (40) by a fifth electric motor (46) between their release position and their clamping position.
4. Belegdruckeinrichtung nach einem der Ansprüche 1 bis4. Document printing device according to one of claims 1 to
3, d a d u r c h g e k e n n z e i c h n e t , daß die Schneideinrichtung (16) eine durch einen dritten Elektromotor (37) quer zum Papierweg (10) bewegbare Schneidrolle (36) umfaßt.3, that the cutting device (16) comprises a cutting roller (36) which can be moved transversely to the paper path (10) by a third electric motor (37).
5. Belegdruckeinrichtung nach einem der Ansprüche 1 bis5. Document printing device according to one of claims 1 to
4, dadu r ch geke nn z e i chne t , daß zumindest ein die Papiertransporteinrichtung (12) an- treibender erster Elektromotor (28) , der zweite (33) und der vierte Elektromotor (38) als Schrittmotor ausgebildet ist, daß mit der Erfassung der Vorderkante der Endlospapierbahn (20) durch die Lichtschranke (48) der vierte Elektromotor (38) mit eine vorgegebene Beschleuni- gungsrampe definierenden Schrittimpulsen beaufschlagt und zugleich die Länge eines Belegs (18) ausgehend von der Vorderkante der Endlospapierbahn (20) aus der Zahl der Schrittimpulse des zweiten Elektromotors (33) ermittelt wird, und daß bei Erreichen einer vorgegebenen Soll- Beleglänge der erste (28) , der zweite (33) und der vierte Elektromotor (38) angehalten und die Schnei- deinrichtung (16) betätigt wird. 4, therefore it is shown that at least one first electric motor (28) driving the paper transport device (12), the second (33) and the fourth electric motor (38) are designed as stepper motors, that with the detection of the The front edge of the continuous paper web (20) is acted upon by the light barrier (48), the fourth electric motor (38) with step pulses defining a predetermined acceleration ramp and at the same time the length of a document (18) starting from the front edge of the continuous paper web (20) from the number of step pulses of the second electric motor (33) is determined, and that when a predetermined target document length is reached, the first (28), the second (33) and the fourth electric motor (38) are stopped and the cutting device (16) is actuated.
EP97951791A 1996-12-20 1997-11-20 Document-printing arrangement with document-collection station Expired - Lifetime EP0946364B1 (en)

Applications Claiming Priority (3)

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DE19653487 1996-12-20
DE19653487A DE19653487C1 (en) 1996-12-20 1996-12-20 Document printing device with document collecting station
PCT/DE1997/002724 WO1998028137A1 (en) 1996-12-20 1997-11-20 Document-printing arrangement with document-collection station

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EP0946364A1 true EP0946364A1 (en) 1999-10-06
EP0946364B1 EP0946364B1 (en) 2001-10-04

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US6814517B2 (en) * 2003-02-20 2004-11-09 Eastman Kodak Company Single pass multi-color printer with improved cutting apparatus and method
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ATE206359T1 (en) 2001-10-15
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