EP0885727A2 - Mécanisme pour le positionnement d'une tête d'impression par jet d'encre et d'un dispositif de nettoyage et de recouvrement - Google Patents

Mécanisme pour le positionnement d'une tête d'impression par jet d'encre et d'un dispositif de nettoyage et de recouvrement Download PDF

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Publication number
EP0885727A2
EP0885727A2 EP98109703A EP98109703A EP0885727A2 EP 0885727 A2 EP0885727 A2 EP 0885727A2 EP 98109703 A EP98109703 A EP 98109703A EP 98109703 A EP98109703 A EP 98109703A EP 0885727 A2 EP0885727 A2 EP 0885727A2
Authority
EP
European Patent Office
Prior art keywords
print head
ink print
cleaning
sealing
axis
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.)
Ceased
Application number
EP98109703A
Other languages
German (de)
English (en)
Other versions
EP0885727A3 (fr
Inventor
Wolfgang Von Inten
Wolfgang Muhl
Ralf MÜLLER
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.)
Francotyp Postalia GmbH
Original Assignee
Francotyp Postalia 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 Francotyp Postalia GmbH filed Critical Francotyp Postalia GmbH
Publication of EP0885727A2 publication Critical patent/EP0885727A2/fr
Publication of EP0885727A3 publication Critical patent/EP0885727A3/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16585—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
    • B41J2/16588—Print heads movable towards the cleaning unit

Definitions

  • the invention relates to a device for positioning an ink print head and a cleaning and sealing device, in particular in a franking and / or addressing machine.
  • a device for positioning an ink print head and a cleaning and sealing device in particular in a franking and / or addressing machine.
  • printing is carried out mainly by means of inking rollers or thermal print heads.
  • efforts have been made to take advantage of ink printing in the field of machine franking and / or addressing.
  • the printing is done without contact by means of ink printheads, see DE 44 24 771 C1 and DE 94 20 734 U1.
  • the letters rest on a guide plate in which a print window is provided and in which the ink print head is arranged in a stationary manner.
  • the letter is guided past the print window or the ink print head and, in the meantime, is printed on the side facing away from the viewer.
  • the problem of ink head cleaning and sealing remains unconsidered.
  • the recording medium and the ink print head are moved alternately in orthogonal directions to one another, the distance between the two being constant.
  • the movement of the ink print head generally takes place in a positive direction transverse to the direction of ink ejection or parallel to the plane of the recording medium. This is also the case if the ink print head is cleaned and / or sealed during certain printing breaks.
  • the ink printhead is moved laterally outside of the printing position with the same drive as for the printing in a cleaning and sealing position and remains in this position while a cleaning and sealing device is moved towards and docked on it, see US 4,533,927, whereby the movement of the cleaning and sealing device takes place by means of a lever system without an additional drive, utilizing the printhead movement running parallel to the plane of the recording medium.
  • This principle cannot be transferred to the previous solution due to the different print carrier guide and the ink print head arranged stationary for the printing process.
  • the ink print head is parallel to the recording medium level mounted translationally on guide rods - that corresponds to its working position - and also rotatable eccentrically stored in a drive housing.
  • the drive housing the ink print head can either be in a working position, in a cleaning position or in a rest position with sealing rotated and shifted in or opposite to the ink ejection direction will.
  • priming can be carried out by hand and the nozzle surface of the ink print head can be wiped off with a scraper.
  • the rest position the nozzle surface of the printhead is pressed against a membrane cover and thus sealed.
  • a device for cleaning an ink print head is known, see WO 96/15908 A1, in which it is provided that the ink print head is fastened to and fro from a printing position to a cleaning position and / or sealing position and that a cleaning and sealing device is linear adjustable, towards and away from the ink print head.
  • the cleaning and sealing device contains a sealing cap adapted to the ink printhead with suction slots for each row of nozzles and a transversely adjustable wiper lip as well as a downstream suction pump.
  • a suction area with a suction opening for the wiper lip is also provided at one end in the sealing cap. The wiper lip is adjusted by means of a spindle drive.
  • the purpose of the invention is to improve the print quality.
  • the invention has for its object a device of the beginning to create the type with which a behind a guide plate stationary arranged ink print head from a defined adjustable Print position in a cleaning position and / or in a Sealing position and back is adjustable, and with one the ink printhead adapted cleaning and sealing device to the ink printhead is positionally and functionally connectable.
  • a franking machine has a guide plate 1 with a print window 11, an ink print head 2 - in the further TDK - which is arranged stationary in the print window 11, a transport device 9 for print carriers 91, and a cleaning and sealing device 3 - in the further RDV - for the ink printhead 2 on.
  • a common gear 4 is provided for the TDK 2 and the RDV 3, which is driven by a motor 5 that only runs in one direction of rotation.
  • the TDK 2 and the RDV 3 are arranged on the same side of the guide plate 1, the RDV 3 below the TDK 2.
  • the TDK 2, the RDV 3 and the common transmission 4 together with the motor 5 are fastened in a common frame 8 and in this way combined into a compact assembly.
  • the frame 8 is in turn fastened to a carrier 92 of the transport device 9 in an adjustable manner. This enables a comparison to be made in order to achieve parallelism between the transport direction and the print lines.
  • the guide plate 1 is inclined beyond the vertical and the TDK 2 can be pivoted upwards and backwards from the printing position into the cleaning position and back again accordingly by more than 90 °.
  • the RDV 3 is height adjustable below the TDK 2.
  • the TDK 2 is fastened on an axis 20 with little play ⁇ against a spring 201.
  • the game is dimensioned so that a parallelism adjustment between the nozzle surface 2101 of the TDK 2 and the guide plate 1 for the correct printing position is possible, see also FIGS. 1 and 5.
  • the axis 20 is rotatably mounted in the frame 8.
  • the TDK 2 is laterally coupled to the transmission 4 via a crank 423, which is also seated on the axis 20.
  • the TDK 2 is pivoted from the printing position into the sealing position and back again by means of the crank 423.
  • the support shaft 81 is inserted through a corresponding bore 922, which is designed so that it serves to fasten the support shaft 81 and as a plain bearing for the same.
  • the support axis 81 is secured in the carrier 92 or the bore 922 by means of a screw 813, a washer 812 and a compression spring 811 so that the frame 8 can be rotated within an adjustment range.
  • the compression spring 811 is clamped between the disc 812 and the carrier 92.
  • the latter has an adjusting element 82 which is fastened on the one hand in a rotatable manner to the frame 8 and on the other hand adjustable in length on the carrier 92.
  • the adjusting element 82 consists of an adjusting screw 821, a compression spring 822 pushed onto the adjusting screw 821, a bearing piece 823 and a locking piece 824.
  • the bearing piece 823 is rotatably inserted and locked in adapted bores in the front wall and a parallel to this support wall 83 of the frame 8.
  • the bearing piece 823 is provided with a threaded hole for the adjusting screw 821.
  • the locking piece 824 bears against the head of the adjusting screw 821 due to the action of the compression spring 822, which on the other hand is supported on the bearing piece 823.
  • Two wedge-shaped tabs 921 are formed on the carrier 92, between which the adjusting element 82 is inserted in such a way that the head of the adjusting screw 821 is supported on the top of the tab 921 and the locking piece 824 is non-positively engaged in adapted recesses in the tab 921.
  • the frame 8 is either raised or lowered depending on the direction of rotation. In this way, the TDK 2 can be adjusted so precisely that gaps or overlaps in the printed image are avoided.
  • the RDV 3 together with the gear for the wiper lip 32 and the associated motor 317 are fastened in a frame 35, which in turn is fastened in the frame 8, see also FIG. 6.
  • the RDV 3 has a sealing cap 31, which is adjustable in height within the frame 35, together with a wiper lip 32, and a suction pump 33, which is mechanically and fluidly coupled to the sealing cap 31. From the suction pump 33, on the one hand a flexible hose connection 331 is connected to the sealing cap 31 in a manner not shown in detail, and on the other hand a flexible hose connection 332 is connected to a waste ink tank 34.
  • FIG. 5 shows a TDK 2 with a docked sealing cap 31 from the rear.
  • the sealing cap 31 is mounted on the desk-shaped part of the crank 433 on compression springs 4333.
  • the compression springs 4333 are pushed onto pins 4332, which serve as guide pins for the sealing cap 31.
  • the sealing cap 31 is provided with recesses 318 into which hooks 4331 of crank 433 are snapped. In this way, a secure locking of the sealing cap 31 on the crank 433 on the one hand and a floating mounting of the sealing cap 31 on the other hand are achieved.
  • the precise coupling of the sealing cap 31 to the TDK 2 is problem-free and overloads are avoided.
  • the compensation play for the TDK 2 is, on the one hand, as already mentioned above, determined by the two stops 4231 and 4232 in the crank 423.
  • the housing 22 of the TDK 2 is non-positively against the adjustable stop 4231.
  • the spring 201 is pushed onto the axis 20 and rests with one end on the housing 22 and with the other end on the frame 8, see also FIG. 2.
  • the first pinion 4131, 4141 has a uniform toothing consisting of four undercut teeth 41311, 41411 and is thinner than the assigned first cam disk 4122.
  • the slots 41221, 41222 of the cam disk 4122 are dimensioned such that two teeth 41311, 41411 can be immersed simultaneously .
  • the second pinion 4132, 4142 is dimensioned so thick that approximately the total dimension of the thickness of the second cam plate 4123 and the toothed segment wheel 4124 is reached.
  • the part of the second pinion 4132, 4142 which engages with the second cam disk 4123 has two diametrically opposed tooth gaps 41322, 41422 in the otherwise uniform toothing. In other words, the tooth thickness is reduced at these points by the thickness of the second cam plate 4122.
  • the slots 41231, 41232 are dimensioned such that two teeth 41321, 41421 can immerse at the same time.
  • the toothed segment wheel 4124 is provided in the areas which are assigned to the slots 41231, 41232 with a toothing 41241, 41242 which corresponds to half a revolution of the pinion 4132, 4142.
  • the slotted disc 4126 is provided with six slits 41261 to 41266 on the outside according to the number of positions or combinations of positions provided for the TDK 2 and the RDV 3.
  • the kinematic implementation of all positions and the functions associated therewith is distributed over a full revolution of the slotted disc 4126.
  • the function assignment to the individual slots 41261 to 41266 is explained below.
  • the "sealing position" is assigned to the first slot 41261. In this position, the TDK 2 with its nozzle surface 2101 is pivoted parallel to the front of the sealing cap 31 and the latter is docked to the TDK 2, see also FIGS. 5 and 6.
  • the wiper lip 32 has moved into a lateral waiting position.
  • the "wipe position” is assigned to the second slot 41262. In this position, the sealing cap 31 is moved so far that the wiper lip 32 can slide freely over the nozzle surface 2101 with its doctor blade insert 322.
  • the "first rest position” is assigned to the third slot 41263. In this position, the sealing cap 31 is moved down to the bottom dead center and the TDK 2 with its nozzle surface 2101 is still arranged parallel to the front of the sealing cap 31.
  • the fourth slot 41264 is assigned the "print position”. In this position, the TDK 2 with its nozzle surface 2101 is arranged parallel to the guide plate 1. The sealing cap 31 is still moved to bottom dead center, see also FIG. 1.
  • the fifth slot 41265 is assigned the "second rest position".
  • the TDK 2 In this position, the TDK 2 is pivoted from the "printing position” into the parallel position to the RDV 3 or to the front of the sealing cap 31, which is still at the bottom dead center.
  • the sixth slot 41266 is assigned the "standby position". In this position, the TDK 2 assumes the parallel position to the front of the sealing cap 31 and the latter has accelerated from the bottom dead center to a position which is slightly below the “wiping position”.
  • the slot 41261 for the "sealing position” is so wide that both photo sensors 44, 45 lying in parallel can be triggered simultaneously.
  • the remaining slots 41262 to 41266 are only so wide that only one photosensor can be triggered at a time.
  • FIG. 11 shows the interplay between the valve 36 for venting the sealing cap 31 and the rubber-elastic flanges 3101 for the extraction of the nozzle rows 211 and the first crank 431 of the double-joint connection 43, see also FIG. 7.
  • the valve 36 is fastened to the frame 8 in such a way that a flank of the crank 431 covers the slightly protruding rubber-elastic opening 361 of the valve 36 in a force-fitting manner or closes it as it slides past.
  • the attachment point is selected such that the valve 36 is closed in the "sealing position" but is already opened again before leaving it.

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  • Ink Jet (AREA)
EP98109703A 1997-06-18 1998-05-28 Mécanisme pour le positionnement d'une tête d'impression par jet d'encre et d'un dispositif de nettoyage et de recouvrement Ceased EP0885727A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19726642A DE19726642C1 (de) 1997-06-18 1997-06-18 Vorrichtung zur Positionierung eines Tintendruckkopfes und einer Reinigungs- und Dichtvorrichtung
DE19726642 1997-06-18

Publications (2)

Publication Number Publication Date
EP0885727A2 true EP0885727A2 (fr) 1998-12-23
EP0885727A3 EP0885727A3 (fr) 2000-03-22

Family

ID=7833399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109703A Ceased EP0885727A3 (fr) 1997-06-18 1998-05-28 Mécanisme pour le positionnement d'une tête d'impression par jet d'encre et d'un dispositif de nettoyage et de recouvrement

Country Status (3)

Country Link
US (1) US6224187B1 (fr)
EP (1) EP0885727A3 (fr)
DE (1) DE19726642C1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757652B4 (de) 1997-12-15 2005-03-17 Francotyp-Postalia Ag & Co. Kg Frankiermaschine mit einer Chipkarten-Schreib-/Leseeinheit
US6631986B2 (en) * 1998-12-16 2003-10-14 Silverbrook Research Pty Ltd Printer transport roller with internal drive motor
DE19928058B4 (de) 1999-06-15 2005-10-20 Francotyp Postalia Ag Anordnung und Verfahren zur Generierung eines Sicherheitsabdruckes
DE20008548U1 (de) 2000-05-08 2000-08-03 Francotyp-Postalia AG & Co., 16547 Birkenwerder Anordnung zur Erkennung der Schaltstellung eines Netzschalters
US7153689B2 (en) * 2002-08-01 2006-12-26 Agilent Technologies, Inc. Apparatus and methods for cleaning and priming droplet dispensing devices
US6814421B2 (en) * 2002-10-24 2004-11-09 Hewlett-Packard Development Company, L.P. Printing device and method
JP4635440B2 (ja) * 2003-01-16 2011-02-23 セイコーエプソン株式会社 液体噴射装置
US6869162B2 (en) 2003-03-27 2005-03-22 Hewlett-Packard Development Company, L.P. Printing device and method for servicing same
DE102005052151B3 (de) 2005-11-02 2007-05-31 Francotyp-Postalia Gmbh Vorrichtung zum Freispritzen eines Tintendruckkopfes
DE102005052150B4 (de) 2005-11-02 2007-09-20 Francotyp-Postalia Gmbh Vorrichtung zur Reinigung eines Tintendruckkopfes
DE102007035875B3 (de) * 2007-07-31 2008-11-20 Francotyp-Postalia Gmbh Messanordnung und Messverfahren zur Ermittlung des Spiels einer Kartuschenschwenkeinheit
DE102010037829A1 (de) 2010-09-28 2012-03-29 OCé PRINTING SYSTEMS GMBH Druckwerk für ein Tintendruckgerät
DE102010060405B4 (de) 2010-11-08 2017-08-31 Océ Printing Systems GmbH & Co. KG Vorrichtung zur Positionierung mindestens eines Druckriegels in Druckposition bei einem Tintendruckgerät
DE102010060406B4 (de) 2010-11-08 2018-05-30 Océ Printing Systems GmbH & Co. KG Vorrichtung und Verfahren zur Positionierung mindestens eines Druckriegels im Gehäuse einer Druckeinheit bei einem Tintendruckgerät
WO2013181759A1 (fr) * 2012-06-06 2013-12-12 Services De Marketing Sibthorpe Inc. Ensemble pour la préparation d'une ébauche de boîte personnalisée et procédé associé
DE102013105077B4 (de) 2013-05-17 2015-08-06 Océ Printing Systems GmbH & Co. KG Druckwerk für ein Tintendruckgerät
CN112976816B (zh) * 2019-12-02 2021-12-07 东友科技股份有限公司 墨匣调校机构
CN118342784B (zh) * 2024-05-17 2024-09-13 中国人民解放军空军军医大学 基于三孔式前纵隔手术用的3d打印设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533927A (en) 1982-05-06 1985-08-06 Sharp Kabushiki Kaisha Capping mechanism for preventing nozzle blocking in an ink jet system printer
DE3608912C2 (fr) 1986-03-17 1989-11-30 Agfa-Gevaert Ag, 5090 Leverkusen, De
DE9420734U1 (de) 1994-12-13 1995-02-23 Francotyp-Postalia GmbH, 16547 Birkenwerder Anordnung für eine Frankiermaschine
DE4424771C1 (de) 1994-07-05 1995-11-23 Francotyp Postalia Gmbh Tintendruckkopf aus einzelnen Tintendruckmodulen
WO1996015908A1 (fr) 1994-11-21 1996-05-30 Techniku B.V. Poste de nettoyage et d'obturation pour tete d'impression
DE19605014C1 (de) 1996-01-31 1997-03-13 Francotyp Postalia Gmbh Vorrichtung zum Bedrucken eines auf einer Kante stehenden Druckträgers

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US4745414A (en) * 1986-04-09 1988-05-17 Canon Kabushiki Kaisha Recovery device for an ink jet recorder and a recovery method thereof
US5025386A (en) * 1988-08-01 1991-06-18 Pavo Pusic Automated mail collecting and telecommunication machine II
US5187497A (en) * 1989-09-18 1993-02-16 Canon Kabushiki Kaisha Ink jet recording apparatus having gap adjustment between the recording head and recording medium
EP0436756A1 (fr) * 1990-01-09 1991-07-17 Siemens Aktiengesellschaft Dispositif pour l'arrimage précis d'une station de nettoyage et de recouvrement d'une tête d'impression à jet d'encre dans une imprimante à jets d'encre
JPH05278223A (ja) * 1992-03-31 1993-10-26 Fuji Xerox Co Ltd インクジェット記録ヘッド用キャップ装置
US5289767A (en) * 1992-08-21 1994-03-01 Videojet Systems International, Inc. Method and apparatus for guiding an elongated generally cylindrical member past a non-contact printing station
JP3161145B2 (ja) * 1993-03-19 2001-04-25 富士ゼロックス株式会社 インクジェット記録装置の吐出性能回復方法及びその装置
DE19522594C2 (de) * 1995-06-19 1999-02-04 Francotyp Postalia Gmbh Vorrichtung zur Reinhaltung der Düsen eines Tintendruckkopfes
DE19645303C1 (de) * 1996-01-31 1997-12-11 Francotyp Postalia Gmbh Vorrichtung zum Bedrucken eines auf einer Kante stehenden Druckträgers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533927A (en) 1982-05-06 1985-08-06 Sharp Kabushiki Kaisha Capping mechanism for preventing nozzle blocking in an ink jet system printer
DE3608912C2 (fr) 1986-03-17 1989-11-30 Agfa-Gevaert Ag, 5090 Leverkusen, De
DE4424771C1 (de) 1994-07-05 1995-11-23 Francotyp Postalia Gmbh Tintendruckkopf aus einzelnen Tintendruckmodulen
WO1996015908A1 (fr) 1994-11-21 1996-05-30 Techniku B.V. Poste de nettoyage et d'obturation pour tete d'impression
DE9420734U1 (de) 1994-12-13 1995-02-23 Francotyp-Postalia GmbH, 16547 Birkenwerder Anordnung für eine Frankiermaschine
DE19605014C1 (de) 1996-01-31 1997-03-13 Francotyp Postalia Gmbh Vorrichtung zum Bedrucken eines auf einer Kante stehenden Druckträgers

Also Published As

Publication number Publication date
EP0885727A3 (fr) 2000-03-22
DE19726642C1 (de) 1998-09-03
US6224187B1 (en) 2001-05-01

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