DE2016377C2 - Screen printing machine with stationary doctor blade - has moving screen frame pivoting about rear edge, with front edge liftable - Google Patents

Screen printing machine with stationary doctor blade - has moving screen frame pivoting about rear edge, with front edge liftable

Info

Publication number
DE2016377C2
DE2016377C2 DE19702016377 DE2016377A DE2016377C2 DE 2016377 C2 DE2016377 C2 DE 2016377C2 DE 19702016377 DE19702016377 DE 19702016377 DE 2016377 A DE2016377 A DE 2016377A DE 2016377 C2 DE2016377 C2 DE 2016377C2
Authority
DE
Germany
Prior art keywords
screen
doctor blade
front edge
printing
screen frame
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
Application number
DE19702016377
Other languages
German (de)
Other versions
DE2016377A1 (en
Inventor
Elmar Dr. Messerschmitt
Peter 8000 München Schnall
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.)
Albert Frankenthal AG
Original Assignee
Albert Frankenthal 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 Albert Frankenthal AG filed Critical Albert Frankenthal AG
Priority to DE19702016377 priority Critical patent/DE2016377C2/en
Publication of DE2016377A1 publication Critical patent/DE2016377A1/en
Application granted granted Critical
Publication of DE2016377C2 publication Critical patent/DE2016377C2/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/08Machines
    • B41F15/0804Machines for printing sheets
    • B41F15/0813Machines for printing sheets with flat screens
    • B41F15/0827Machines for printing sheets with flat screens with a stationary squeegee and a moving screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)

Abstract

The screen printing machine for flat web has a fixed doctor blade. The web to be printed is located between a movable base and a screen frame moving with it. The frame is so mounted as to swivel at its front edge to raise the screen behind the pull exerting doctor blade. The screen frame (4) swivels about its rear edge, and is raisable at its front edge. The distance of the screen (3) from a support printing cylinder (2) may be adjustable for its travel against a stationary doctor blade (14). PS.

Description

Die Erfindung betrifft eine Siebdruckvorrichtung für flaches Druckgut mit einer ortsfesten Rakelanordnung, bei der sich das Druckgut während des Druckes zwischen einer Druckbasis und einem mit dieser bewegten Siebrahmen befindet und der Siebrahmen an der Vorderkante schwenkbar angeordnet ist, um das Sieb beim Durchlauf hinter der ziehenden Rakel stetig anzuheben.The invention relates to a screen printing device for flat items to be printed with a stationary squeegee arrangement, in which the print material is between a printing base and a printing base during printing moving screen frame is located and the screen frame is pivotably arranged at the front edge to the Raise the screen steadily as it passes behind the pulling squeegee.

Eine solche Siebdruckvorrichtung beschreibt die DE-AS 11 16 688. Nach dem Druckvorgang wird dort der Siebrahmen in einer gegenüber der Horizontalen geneigten Ebene, d.h. schräg, zurückgeführt. Hierbei besteht die Gefahr, daß bei einem durchhängenden Sieb des Siebrahmens dieses in Kontakt mit dem Druckgut gelangt, so daß die Gefahr von Farbverschmierungen besteht Dies ist insbesondere auf derjenigen Seite der Fall, auf der die Farbe ausgestrichen wurde. Bei dieser bekannten Siebdruckvorrichtung können darüberhinaus nur dünnere Gegenstände, z. B. Papier, bedruckt werden, aber keine Gegenstände größerer Dicke. Dies beruht auf dem größeren Krümmungsradius dickerer Gegenstände auf dem Zylinder, wodurch es auch hierbei zu Verschmierungen und Passer-Ungenauigkeiten kommen kann.Such a screen printing device is described in DE-AS 11 16 688. After the printing process, there the screen frame in a plane that is inclined to the horizontal, i.e. at an angle, is returned. Here there is a risk that if the screen of the screen frame is sagging, it will come into contact with the material to be printed so that there is a risk of paint smudging. This is especially true on that side of the Case on which the paint was smeared. In this known screen printing device can also only thinner objects, e.g. B. paper, are printed, but not objects of greater thickness. this is based on the larger radius of curvature of thicker objects on the cylinder, which also makes it here smearing and register inaccuracies can occur.

Die US-PS 32 52 411 beschreibt eine Siebdruckvorrichtung, bei der das gesamte Sieb nach dem Druckvorgang angehoben wird. Hierzu ist ein komplizierter Mechanismus erforderlich, einschließlich einer komplizierten Säulenführung für den gesamten Rahmen an seinen vier Ecken.The US-PS 32 52 411 describes a screen printing device in which the entire screen after Printing is raised. This requires a complicated mechanism, including one complicated column guide for the entire frame at its four corners.

Der Erfindung liegt die Aufgabe zugrunde, eine Siebdruckvorrichtung der eingangs genannten Art vorzuschlagen, mit der es auf konstruktiv einfache Weise möglich ist, einen einwandfreien Druck ohne Farbverschmierungen zu erreichen.The invention is based on the object of providing a screen printing device of the type mentioned at the beginning to propose, with which it is possible in a structurally simple manner, a flawless print without To achieve paint smears.

Zur Lösung dieser Aufgabe ist die Erfindung dadurch gekennzeichnet, daß der Siebrahmen um seine Hinterkante schwenkbar und an seiner Vorderkante anhebbarTo solve this problem, the invention is characterized in that the screen frame around its rear edge pivotable and liftable at its front edge

s ausgebildet ists is trained

Dadurch ergibt sich eine wesentliche Vereinfachung, verbunden mit einem größeren Absprung beim Rückweg nach dem Druckvorgang und es wird ein einwandfreier Druck ohne Farbverschmierungen erreicht This results in a significant simplification, combined with a larger jump at Return after the printing process and a flawless print without ink smears is achieved

Bevorzugt wird es, wenn der Abstand des Siebes zu einem Druckzylinder als Druckunterlage für deren Anlauf gegen eine feststehende Vorrakel einstellbar ist. Hierdurch erfolgt eine Rückführung des Siebes in einer Ebene parallel zur Vorrakel. Dadurch wird verhindert daß am rückwärtigen Ende der Siebdruckvorrichtung eine dickere Farbschicht aufgebracht wird, als im vorderen Bereich des Siebes.It is preferred if the distance between the screen and a printing cylinder is used as a printing substrate for the latter Start against a fixed preliminary squeegee is adjustable. This results in a return of the screen in one Plane parallel to the preliminary squeegee. This prevents the rear end of the screen printing device a thicker layer of paint is applied than in the front area of the screen.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen schematisch dargestellt Es zeigtAn embodiment of the invention is shown schematically in the drawings

Fig. 1 eine Seitenansicht der Maschine, teilweise geschnitten nach erfolgtem Druck,Fig. 1 is a side view of the machine, partially cut after printing,

F i g. 2 eine Seitenansicht der Maschine während des Rücklaufes des Siebrahmens.F i g. 2 is a side view of the machine while the screen frame is retracting.

Im Maschinengestell ist in bekannter Weise der Druckzylinder 2 gelagert. Oberhalb des Druckzylinders befindet sich das Sieb 3, das in den Siebrahmen 4 eingespannt und in Pfeilrichtung verschiebbar ist. Der Siebmhrnen wiederum ist im Siebhauptrahmen 5 gelagert, der über Zahnstangen 6 mit dem Zahnrad 7 am Druckzylinder 2 in Verbindung stehtThe printing cylinder 2 is mounted in the machine frame in a known manner. Above the printing cylinder there is the sieve 3, which is clamped in the sieve frame 4 and displaceable in the direction of the arrow. Of the Siebmhrnen, in turn, is in the screen main frame 5 stored, which is connected to the gear 7 on the printing cylinder 2 via toothed racks 6

Das zu bedruckende Bogenmaterial wird über den Anleger 8 dem Druckzylinder 2 zugeführt und über den Ausleger 9 wegtransportiert Je nach Steifigkeit des zu bedruckenden Materials sind An- und Ausleger in der Höhe verstellbar.The sheet material to be printed is fed to the printing cylinder 2 via the feeder 8 and via the Outrigger 9 transported away Depending on the rigidity of the material to be printed on, feeders and outriggers are in the Height adjustable.

F i g. 1 zeigt, daß der Schablonenrahmen beim Durchlauf zum Drucken in Pfeilrichtung an der Vorderkante angehoben wird. Das Anheben erfolgt mittels Feder 10, die über Handrad 11 einstellbar ist. Zu Beginn des Rücklaufes wird außerdem das hintere Ende des Siebrahmens angehoben, wobei sich der Bolzen 12 im Schlitz 13 nach oben bewegt Gegen bzw. nach Ende des Rücklaufes wird in der Position Druckbeginn das ganze Sieb parallel in die Ausgangsstellung abgesenkt Beim Rücklauf des Siebes im angehobenen ZustandF i g. 1 shows that the stencil frame is attached to the Leading edge is lifted. It is raised by means of a spring 10, which can be adjusted using the handwheel 11. to At the beginning of the return, the rear end of the sieve frame is also raised, with the bolt 12 moved upwards in the slot 13 Towards or after the end of the return, the Whole sieve lowered in parallel to the starting position When the sieve returns in the raised position

ist der Abstand desselben zum Druckzylinder 2 so gewählt, daß es an einer feststehenden Vorrakel 14 anläuft Beim Druckvorgang bewegt sich die Haupttrakel 15 in die Stellung auf dem abgesenkten Sieb, wie in F i g. 1 ersichtlich.the distance between the latter and the printing cylinder 2 is selected in such a way that it is on a stationary pre-doctor blade 14 starts During the printing process, the main doctor blade 15 moves into the position on the lowered screen, as in F i g. 1 can be seen.

Zum Heben und Senken des Siebrahmens ist ein verschieb- oder verschwenkbares Element 16 am Siebhauptrahmen befestigt, das über die Anschläge 17 und 18 das Heben und Senken des Siebes in den beiden Endstellungen automatisch steuertTo raise and lower the screen frame, a displaceable or pivotable element 16 is on Screen main frame attached, the lifting and lowering of the screen in the two via the stops 17 and 18 Controls end positions automatically

Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings

Claims (2)

Patentansprüche:Patent claims: ί. Siebdruckvorrichtung für flaches Druckgut mit einer ortsfesten Rakelanordnung, bei der sich das Druckgut während des Druckes zwischen einer Druckbasis und einem mit dieser bewegten Siebrahmen befindet und der Siebrahmen an der Vorderkante schwenkbar angeordnet ist, um das Sieb beim Durchlauf hinter der ziehenden Rakel stetig anzuheben, dadurch gekennzeichnet, daß der Siebrahmen (4) um seine Hinterkante schwenkbar und an seiner Vorderkante anhebbar ausgebildet istί. Screen printing device for flat items to be printed with a stationary squeegee arrangement in which the Material to be printed during printing between a printing base and a screen frame moved with it is located and the screen frame is pivotally mounted at the front edge to the screen at Continuously to raise the passage behind the pulling squeegee, characterized in that the screen frame (4) is designed to be pivotable about its rear edge and liftable at its front edge is 2. Siebdruckvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Abstand des Siebes (3) zu einem Druckzylinder (2) als Druckunterlage für deren Anlauf gegen eine feststehende Vorrakel (14) einstellbar ist2. Screen printing device according to claim 1, characterized in that the distance of the screen (3) to a printing cylinder (2) as a printing pad for its run-up against a fixed preliminary squeegee (14) is adjustable
DE19702016377 1970-04-06 1970-04-06 Screen printing machine with stationary doctor blade - has moving screen frame pivoting about rear edge, with front edge liftable Expired DE2016377C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702016377 DE2016377C2 (en) 1970-04-06 1970-04-06 Screen printing machine with stationary doctor blade - has moving screen frame pivoting about rear edge, with front edge liftable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702016377 DE2016377C2 (en) 1970-04-06 1970-04-06 Screen printing machine with stationary doctor blade - has moving screen frame pivoting about rear edge, with front edge liftable

Publications (2)

Publication Number Publication Date
DE2016377A1 DE2016377A1 (en) 1971-10-28
DE2016377C2 true DE2016377C2 (en) 1982-08-12

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DE19702016377 Expired DE2016377C2 (en) 1970-04-06 1970-04-06 Screen printing machine with stationary doctor blade - has moving screen frame pivoting about rear edge, with front edge liftable

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DE (1) DE2016377C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223700B (en) * 1988-09-20 1992-05-20 Stoddard Sekers Int Doctor blade apparatus
CN103029420A (en) * 2012-12-14 2013-04-10 安徽安泰新型包装材料有限公司 Screen printing machine with adjustable stroke and realization method thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE370901B (en) * 1972-02-08 1974-11-04 Svecia Silkscreen Maskiner Ab
DE2943893C2 (en) * 1979-10-31 1984-12-20 Gerhard Ing.(grad.) 4800 Bielefeld Klemm Device for printing webs of material with a screen printing station
EP0075640A1 (en) * 1981-09-28 1983-04-06 Svecia Silkscreen Maskiner AB A stencil printing machine having a curved printing table
DE3813583A1 (en) * 1988-04-22 1989-11-02 Ver Glaswerke Gmbh ROTATION TAMPON PRINTING MACHINE FOR PRINTING THE EDGE OF CAR GLASS DISC
JP2506222B2 (en) * 1990-06-26 1996-06-12 桜精機株式会社 Plate frame moving device for cylinder screen printing machine
DE10149389C1 (en) 2001-09-27 2003-02-27 Thieme Gmbh & Co Kg Screen printing machine upper part has bearing angles for screen printing pattern adjusted along carrier rails for exact retention of latter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE820592C (en) * 1949-07-08 1951-11-12 Kurt Wasmus Device for printing surfaces, in particular lengths of fabric, using a template
DE1116688B (en) * 1957-07-26 1961-11-09 James Arthur Black Screen printing machine
US3221649A (en) * 1963-04-15 1965-12-07 Poster Products Inc Screen printing apparatus
CH412770A (en) * 1963-12-13 1966-05-15 Buser Ag Maschf Fritz Printing template for screen printing
US3252411A (en) * 1964-09-22 1966-05-24 James A Black Method and apparatus for continuously maintaining a layer of coating material on a screen during printing and for controlling the viscosity of the coating material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223700B (en) * 1988-09-20 1992-05-20 Stoddard Sekers Int Doctor blade apparatus
CN103029420A (en) * 2012-12-14 2013-04-10 安徽安泰新型包装材料有限公司 Screen printing machine with adjustable stroke and realization method thereof

Also Published As

Publication number Publication date
DE2016377A1 (en) 1971-10-28

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8339 Ceased/non-payment of the annual fee