DE2740773A1 - Multiple head ink jet printer - has array of piezoelectric pumps electrically connected by printed circuit foil - Google Patents

Multiple head ink jet printer - has array of piezoelectric pumps electrically connected by printed circuit foil

Info

Publication number
DE2740773A1
DE2740773A1 DE19772740773 DE2740773A DE2740773A1 DE 2740773 A1 DE2740773 A1 DE 2740773A1 DE 19772740773 DE19772740773 DE 19772740773 DE 2740773 A DE2740773 A DE 2740773A DE 2740773 A1 DE2740773 A1 DE 2740773A1
Authority
DE
Germany
Prior art keywords
transducer
transducers
transducer elements
printed circuit
ink jet
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
DE19772740773
Other languages
German (de)
Inventor
Joachim Prof Dr Ing Heinzl
Wilhelm Kirner
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19772740773 priority Critical patent/DE2740773A1/en
Publication of DE2740773A1 publication Critical patent/DE2740773A1/en
Ceased legal-status Critical Current

Links

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
    • B41J2/16—Production of nozzles
    • B41J2/1607—Production of print heads with piezoelectric elements
    • B41J2/1615—Production of print heads with piezoelectric elements of tubular type
    • 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
    • B41J2/16—Production of nozzles
    • B41J2/1607—Production of print heads with piezoelectric elements
    • B41J2/1618—Fixing the piezoelectric elements
    • 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
    • B41J2/16—Production of nozzles
    • B41J2/1621—Manufacturing processes
    • B41J2/1637—Manufacturing processes molding
    • 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
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2002/14491—Electrical connection

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

The ink jet printer has a number of ink nozzles each fed by a pump comprising a tubular piezoelectric transducer (3). The transducers axes diverge away from the printing face of the head. The current supply to the transducers is by a printed circuit foil. The foil has contact points (2, 6) for soldering onto the terminals of the respective transducers and contact points (5) for soldering onto the supply network. The printed conductor lines pref. lie at the region of greatest spacing of the divergent transducers.

Description

Vorrichtung zum Kontaktieren von im Schreibkopf von Tintenschreib-Device for contacting in the writing head of ink writing

einrichtungen zu vergießenden Piezowandlern.devices to be potted piezo transducers.

Die Erfindung betrifft eine Vorrichtung zum Kontaktieren von in Kunststoff zu vergießenden elektrischen Bauelementen, insbesondere in Reihen angeordneten, röhrenförmigen, von der Tintenaustrittsöffnung strahlenförmig wegfiuchtenden piezoelektrischen Wandlerelementen, ~s Schreibköpfen von Tintenschreibeinrichtungen.The invention relates to a device for contacting in plastic Electrical components to be potted, especially those arranged in rows, tubular piezoelectric ones that radiate away from the ink outlet opening Transducer elements, writing heads of ink writing devices.

Aus der DT-OS 25 43 451 ist ein piezoelektrisch betriebener Schreibkopf für Tintenmosaikschreibeinrichtungen bekannt, bei dem die piezoelektrischen Wandlerelemente in Reihen von der Tintenaustrittsöffnung strahlenförmig wegfluchtend angeordnet sind. Jedes einzelne dieser Wandlerelemente ist mit einem im Kopf vergossenen Stekker verbunden, wobei die Verbindungen Uber einzelne Litzen hergestellt werden. Diese Litzen werden zuerst an den losen Keramikröhrchen angelötet und nach dem Einlegen der Wandler in die Gießform mit dem Stecker verlötet. Dazu sind Vorbereitungen notwendig, wie Zuschneiden der Litzen auf verschiedene Längen, .Sbisolieren und Verzinnen der Drahtenden vor dem Verlöten mit den Wandlern sowie richtige Plazierung der Wandler in der Gießform entsprechend der verschiedenen Längen und Farben der Litzen. Außerdem müssen die Röhrchen so ausgerichtet werden, daß benachbarte Lötpunkte nicht in Berührung kommen. Ehe die einzelnen Litzen mit dem Stekker verlötet werden, erfolgt der Anschluß der Innenkontakte der Röhrchen, indem man die Enden der eingesetzten Drahtwendeln zu einem gemeinsamen Steckerstift führt und verlötet.From the DT-OS 25 43 451 a piezoelectrically operated write head is known for ink mosaic writing devices in which the piezoelectric transducer elements arranged in rows aligned radially away from the ink outlet opening are. Every single one of these transducer elements has a plug encased in the head connected, whereby the connections are made via individual strands. These Litz wires are first soldered to the loose ceramic tubes and after inserting them the transducer is soldered into the mold with the connector. Preparations are necessary for this, such as cutting the strands to different lengths, stripping and tinning the Wire ends before soldering to the transducers and correct placement of the transducers in the mold according to the different lengths and colors of the strands. aside from that the tubes must be aligned so that adjacent solder points do not touch come. Before the individual strands are soldered to the connector, the connection is made the inner contacts of the tubes by removing the ends of the inserted wire coils leads to a common connector pin and soldered.

Werden derartige Schreibköpfe für Tintenschreibeinrichtungen in großen Serien hergestellt, so ist eine derartige Verdrahtung der einzelnen Wandlerelemente mit dem Stecker vor dem Vergießen kostspielig und zeitraubend.Are such writing heads for ink writing devices in large Manufactured in series, this is the wiring of the individual transducer elements with the plug before potting is costly and time consuming.

Aufgabe der Erfindung ist es, eine Vorrichtung zum Kontaktieren von in Kunststoff zu vergießenden elektrischen Bauelementen, insbesondere piezoelektrischen Wandlerelementen in Schreibköpfen von Tintenschreibeinrichtungen bereitzustellen, die es ermöglicht, die einzelnen Wandlerelemente mit einem ebenfalls im Schreibkopf vergossenen gemeinsamen Anschlußelement, leicht, kostengünstig und kurzschlußsicher zu verlöten.The object of the invention is to provide a device for contacting Electrical components to be cast in plastic, in particular piezoelectric components To provide transducer elements in writing heads of ink writing devices, which makes it possible to use the individual transducer elements with one also in the write head encapsulated common connection element, light, inexpensive and short-circuit proof to solder.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß für jede Wandlerreihe eine flexible, die Wandlerelemente mit einem gemeinsamen Anschlußelement für alle Wandlerelemente verbindende, Kontaktdurchbrüche aufweisende Leiterfolie vorgesehen ist.This object is achieved according to the invention in that for each A flexible converter series, the converter elements with a common connection element for all transducer elements connecting, contact openings having conductor foil is provided.

Bei einer vorteilhaften Ausführungsform sind am Rand der Leiterfolie Kontaktschlitze zur Aufnahme von die Innenelektrode der Wandlerelementen kontaktierenden Leitungen angeordnet.In an advantageous embodiment, the conductor foil is on the edge Contact slots for receiving the transducer elements contacting the inner electrode Lines arranged.

Die Erfindung hat den großen Vorzug, daß damit in einfacher und kostengünstiger Weise die einzelnen Wandlerelemente mit einem gemeinsamen, ebenfalls im Schreibkopf zu vergießenden Stecker verbunden und kontaktiert werden können. Dazu ist für jede Reihe von Wandlern eine Leiterfolie vorgesehen, die vorher mit dem Stekker verbunden und anschließend über die jeweilige Wandlerreihe gespannt wird. Die Folien enthalten durchbrochene Kontaktpunkte, durch die hindurch die Lötverbindung mit der Mantelfläche der röhrchenförmigen Wandler entsteht. Die Montagezeit des gesamten Schreibkopfes wird damit außercrdentlich verkürzt, zumal die Verwechslungsgefahr der Drähte beim Anlöten in der Gießform beseitigt ist.The invention has the great advantage that it is simpler and less expensive Way the individual transducer elements with a common one, also in the write head to be potted connector can be connected and contacted. This is for everyone Series of transducers provided a conductor foil, which was previously connected to the plug and then stretched over the respective transducer row. The slides contain perforated contact points through which the soldered connection to the jacket surface the tubular transducer is created. The assembly time of the entire print head is thus extremely shortened, especially since the danger of confusing the wires with Soldering in the mold is eliminated.

Eine Ausqührungsform der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden beispielsweise näher beschrieben.An embodiment of the invention is shown in the drawings and is described in more detail below, for example.

Es zeigen: Fig. 1 eine schematische Darstellung der flexiblen Leiterfolie, Fig. 2 einen Schreibkopf für eine Tintenschreibeinrichtung mit eingebauter Leiterfolie und Stecker, Fig. 3 einen Vertikalschnitt durch den Schreibkopf, Fig. 4 einen Horizontalschnitt durch den Schreibkopf und Fig. 5 einen Schnitt durch ein einziges Piezowandlerelement mit aufgelöteter Leiterfolie.They show: FIG. 1 a schematic representation of the flexible conductor film, Fig. 2 a writing head for an ink writing device with a built-in conductor foil and connector, FIG. 3 is a vertical section through the writing head, FIG. 4 is a horizontal section through the write head and FIG. 5 shows a section through a single piezo transducer element with soldered-on conductor foil.

Die Vorrichtung zum Kontaktieren von im Kunststoff zu vergießenden piezoelektrischen Bauelementen für Tintenschreibeinrichtungen besteht aus einer blattförmigen flexiblen Leiterfolie 1 mit Kontaktdurchbrüchen 2 zum Anlöten an die Wandlerelemente 3 und weiteren Kontaktdurchbrüchen 4 zum anlöten an ein gemeinsames Anschlußelement, in diesem Fall einen in den Kopf eingegossenen Stecker 5.The device for contacting plastic to be cast piezoelectric components for ink pens consists of a sheet-shaped flexible conductor foil 1 with contact openings 2 for soldering to the Converter elements 3 and further contact openings 4 for soldering to a common one Connection element, in this case a plug 5 cast into the head.

Am Rand der Leiterfolie 1 sind Kontaktschlitze 6 zur Aufnahme von die Innenelektrode 7 der Wandlerelemente kontaktierenden Leitungen 8 angeordnet.At the edge of the conductor foil 1 are contact slots 6 for receiving the inner electrode 7 of the transducer elements contacting lines 8 arranged.

Im einzelnen geschieht die Kontaktierung und das Vergießen der Wandlerelemente wie folgt: Für jede Reihe von Wandlern 3 ist eine Leiterfolie 1 vorgesehen, die vorher mit dem Stecker 5 verlötet und dann über die jeweilige Wandlerreihe gespannt wird. Durch die in der Folie 1 enthaltenen Kontaktpunkte 2 können die Leitungen der Leiterfolie 1 mit der Mantel fläche der Wandlerröhrchen gemäß der Darstellung in der Fig. 5 verlötet werden. Der Anschluß der Nullleiter geschieht dadurch, daß die Enden 8 der die Innenelektrode 7 der Wandlerelemente kontaktierenden Drahtwendel 9 in die Konaktschlitze 6 der Leiterfolie eingeführt und darin verlötet werden. Dieses Einführen der Drahtenden 8 der Drahtwendel 9 dient gleichzeitig zur Lagefixierung der Wandlerelemente auf der Leiterfolie. Die Leiterfolie selber, die aus elastischem isolierenden Kunststoff besteht, ist so ausgeführt, daß das Teilstück 10, das keine Leiterbahnen 11 enthält, als Zwischenlage dient und somit die als Außenelektroden dienenden Mantelflächen der Wandlerelemente 3 an der Stelle 10 voneinander isoliert, an der sie den geringsten Abstand zueinander haben.In detail, the contacting and potting of the transducer elements takes place as follows: For each row of transducers 3, a conductor foil 1 is provided which previously soldered to the connector 5 and then stretched over the respective transducer row will. Through the contact points 2 contained in the film 1, the lines the conductor foil 1 with the jacket surface of the transducer tube as shown 5 are soldered. The connection of the neutral wire is done in that the ends 8 of the wire helix contacting the inner electrode 7 of the transducer elements 9 are inserted into the contact slots 6 of the conductor foil and soldered therein. This introduction of the wire ends 8 of the wire helix 9 also serves to fix the position the transducer elements on the conductor foil. The conductor foil itself, which is made of elastic insulating plastic is made so that the section 10, which no Contains conductor tracks 11, serves as an intermediate layer and thus as external electrodes serving lateral surfaces of the transducer elements 3 isolated from one another at point 10, at which they are the closest to each other.

Die Verwendung von Leiterfolien ermöglicht das Vormontieren und Verlöten der Wandlerelemente 3 mit dem Stecker 4 außerhalb der Gießform. Dadurch wird die Montagezeit wesentlich verkürzt, das Bestücken der Gießform vereinfacht und die bisherige Verwechslungsgefahr der Litzen beim Anlöten vermieden.The use of conductor foils enables pre-assembly and soldering the transducer elements 3 with the plug 4 outside the Casting mold. This significantly shortens the assembly time and simplifies the loading of the casting mold and the previous risk of confusing the strands when soldering them is avoided.

3 Patentansprüche 5 Figuren3 claims 5 figures

Claims (3)

Patentansprtiche 1. Vorrichtung zum Kontaktieren von in Kunststoff zu vergießenden elektrischen Bauelementen, insbesondere in Reihen angeordneten, röhrenförmigen, von der Tintenaustrittsöffnung strahlenförmig wegfluchtenden piezoelektrischen Wandlerelementen in Schreibköpfen von Tintenschreibeinrichtungen, d a d u r c h g e k e n n -z e i c h n e t, daß für jede Wandlerreihe eine flexible, die Wandlerelemente (3) mit einem sneins2men Anschlußelement (5) für alle Wandlerelemente verbindende, Kontaktdurchbrche (2, 4) aufweisende Leiterfolie (1) vorgesehen ist.Patent claims 1. Device for contacting in plastic Electrical components to be potted, especially those arranged in rows, tubular piezoelectric, radiating away from the ink outlet opening Transducer elements in writing heads of ink writing devices, d a d u r c h It is noted that for each transducer row there is a flexible transducer element (3) with a single connection element (5) for all transducer elements connecting, Contact openings (2, 4) having conductor foil (1) is provided. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß am Rand der Leiterfolie (1) Kontaktschlitze !6) zur Aufnahme von die Innenelektrode (7) der Wandlerelemente (3) kontaktierende Leitungen (8) angeordnet sind.2. Apparatus according to claim 1, characterized in that at the edge the conductor foil (1) contact slots! 6) to accommodate the inner electrode (7) the transducer elements (3) contacting lines (8) are arranged. 3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Leiterbahnen (11) auf der Leiterfolie (1) vorzugsweise in den Bereich der größten Abstände der Wandlerreihen untereinander verlaufen.3. Device according to one of claims 1 or 2, characterized in that that the conductor tracks (11) on the conductor foil (1) preferably in the area of the largest distances between the transducer rows run.
DE19772740773 1977-09-09 1977-09-09 Multiple head ink jet printer - has array of piezoelectric pumps electrically connected by printed circuit foil Ceased DE2740773A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772740773 DE2740773A1 (en) 1977-09-09 1977-09-09 Multiple head ink jet printer - has array of piezoelectric pumps electrically connected by printed circuit foil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772740773 DE2740773A1 (en) 1977-09-09 1977-09-09 Multiple head ink jet printer - has array of piezoelectric pumps electrically connected by printed circuit foil

Publications (1)

Publication Number Publication Date
DE2740773A1 true DE2740773A1 (en) 1979-03-15

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DE19772740773 Ceased DE2740773A1 (en) 1977-09-09 1977-09-09 Multiple head ink jet printer - has array of piezoelectric pumps electrically connected by printed circuit foil

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208679A1 (en) * 1982-03-10 1983-09-22 Siemens AG, 1000 Berlin und 8000 München DEVICE FOR CONTACTING TUBE-SHAPED PIEZWALKERS TO BE PLASTED IN PLASTIC
DE3234394A1 (en) * 1982-09-16 1984-03-22 Siemens AG, 1000 Berlin und 8000 München Piezoelectric drive element for ink mosaic printers
DE3433536A1 (en) * 1983-09-19 1985-05-02 Ncr Corp., Dayton, Ohio METHOD FOR PRODUCING A PRINT HEAD FOR AN INK JET PRINTER
DE3343028A1 (en) * 1983-11-28 1985-06-05 Nixdorf Computer Ag, 4790 Paderborn DEVICE FOR PRODUCING AN INK PRINT HEAD
EP0161341A2 (en) * 1984-05-18 1985-11-21 Siemens Aktiengesellschaft Device for fastening and contacting for cylindrical piezo-electrical transducers
EP0164445A2 (en) * 1984-05-16 1985-12-18 Siemens Aktiengesellschaft Arrangement for the fixing and the connecting of piezoelectrical drive elements in the print head of an ink jet printer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208679A1 (en) * 1982-03-10 1983-09-22 Siemens AG, 1000 Berlin und 8000 München DEVICE FOR CONTACTING TUBE-SHAPED PIEZWALKERS TO BE PLASTED IN PLASTIC
DE3234394A1 (en) * 1982-09-16 1984-03-22 Siemens AG, 1000 Berlin und 8000 München Piezoelectric drive element for ink mosaic printers
DE3433536A1 (en) * 1983-09-19 1985-05-02 Ncr Corp., Dayton, Ohio METHOD FOR PRODUCING A PRINT HEAD FOR AN INK JET PRINTER
DE3433536C2 (en) * 1983-09-19 1987-03-05 Ncr Corp., Dayton, Ohio Inkjet printhead
DE3343028A1 (en) * 1983-11-28 1985-06-05 Nixdorf Computer Ag, 4790 Paderborn DEVICE FOR PRODUCING AN INK PRINT HEAD
EP0164445A2 (en) * 1984-05-16 1985-12-18 Siemens Aktiengesellschaft Arrangement for the fixing and the connecting of piezoelectrical drive elements in the print head of an ink jet printer
EP0164445A3 (en) * 1984-05-16 1986-05-21 Siemens Aktiengesellschaft Arrangement for the fixing and the connecting of piezoelectrical drive elements in the print head of an ink jet printer
EP0161341A2 (en) * 1984-05-18 1985-11-21 Siemens Aktiengesellschaft Device for fastening and contacting for cylindrical piezo-electrical transducers
EP0161341A3 (en) * 1984-05-18 1986-10-22 Siemens Aktiengesellschaft Berlin Und Munchen Device for fastening and contacting for cylindrical piezo-electrical transducers

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