US3565002A - Screen holder for rotary screen printing machines - Google Patents

Screen holder for rotary screen printing machines Download PDF

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Publication number
US3565002A
US3565002A US704776A US3565002DA US3565002A US 3565002 A US3565002 A US 3565002A US 704776 A US704776 A US 704776A US 3565002D A US3565002D A US 3565002DA US 3565002 A US3565002 A US 3565002A
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United States
Prior art keywords
screen
slides
rotary
screens
guideways
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Expired - Lifetime
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US704776A
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English (en)
Inventor
Walter Boehm
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Individual
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Individual
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Publication of US3565002A publication Critical patent/US3565002A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/38—Screens, Frames; Holders therefor curved

Definitions

  • a slide member is adjustable along each of the guideways. Elements carried by the slides are adjustable in accordance with a given screen diameter.
  • the elements have further supporting elements for the longitudinal support and longitudinal tension of a cylindrical screen and guide elements for guiding the screen obliquely to its longitudinal direction.
  • PATENTEfl-reazs I971 sum 1 or 2 WALTER 55am
  • a screen holder for rotary screen printing machines adjustable to various screen diameters.
  • a screen holder is meant to be that part of the machine in which the cylindrical screen of a rotary screen printing machine is rotatably held, the screen AC axis having a specific position transversally relative to the longitudinal disposition of the frame of the machine.
  • a screen holder is similar to a bearing, but it need not necessarily show all specific features of a bearing.
  • Rotary screen printing machines are especially required to work with cylindrical screens of various diameters for adjustment to various repeat lengths. Rather complicated devices having many disadvantages in operating have been hitherto used, or devices have been known that utilizable merely for cylindrical screens which are given the longitudinal tension required by a stretching device arranged inside the cylindrical screen, but not for cylindrical screens having a stretching device acting from outside, i.e. from the frame of the machine to the cylindrical screens.
  • an improved precisely adjustable screen holder favorable in operating which is also adapted for use with stretching cylindrical screens from the outside and can be adjusted to various screen diameters.
  • This holder is obtained by providing at least one pair of oblique guideways diverging from the bottom outwardly toward the top having at least one slide member adjustable along these guideways on which the machine elements to the be adjusted in accordance with the given screen diameter are arranged.
  • the machine elements arranged on the slide are particular supporting devices for the longitudinal support or longitudinal tension of the cylindrical screen, and for example, may comprise guide rollers for guiding the cylindrical screen slantwise or obliquely in relation to the longitudinal direction or for centering the cylindrical screen.
  • at least one of the slides can also serve as a bearing for a shaft over which rotary drive motion to the two front sides of the cylindrical screen is transmitted.
  • FIG. 1 is a view taken substantially on line 1-1 of FIG. 2, of a screen front or end side
  • FIG. 2 is a top plan view of an adjustable screen holder showing only one of the two front or end sides ofa cylindrical screen.
  • the screen support of the opposite front or end side of the cylindrical screen is understood to be the same or analogous.
  • a frame adapted to be connected with the unknown supporting machine which frame comprises parallel members or tubes 14 running transversely over the unshown machine or the fragmentally shown printing blanket 17, and which tubes 14 are generally parallel with the longitudinal direction of the screen are represented, there is mounted the base body means 18 of the screen holder.
  • the two oblique guideways 19, 19 diverging from the bottom outwardly toward the top are arranged on the base body means 18 and the slides 4, 4' are adjustable on said guideways 19, 19' by means of threaded spindles 2, 2 which are in mesh with the slides 4, 4' by a nut thread element.
  • the threaded spindles 2, 2 can be driven by a hand wheel 1 or by a motor 15.
  • the two threaded spindles 2, 2' are connected with knuckle joints 3 over a shaft 3. It is convenient for adjusting or driving the slide by means of the motor to arrange a switch 15' for influencing the motor circuit on one of the slides, said switch being actuated by contact earns 16 on the guideway 19' for example in such a manner that the motor 15 after being initially switched on subsequently, when the switch 15' arrives to the next contact cam 16; thus the two slides 4, 4' cover a predetermined distance which is necessary for changing the adjustment of the screen holder from one usual screen diameter to the next one.
  • the slides of the screen holder can be simultaneously adjusted for all or part of the screens or the motor 15 can be a synchronous motor which runs in synchronism with a conventional (unshown) transmitting machine.
  • the transmitting machine supplies the synchronous motors of all screen holders in such a manner that all the synchronous motors run in synchronism with the transmitting machine.
  • the control of the transmitting machine is necessary, for example by means of a limit switch which is adjustable on a marked ruler in accordance with the screen circumference to be adjusted, with the transmitting machine moving a slide in parallel with the said ruler until it actuates the limit switch and thus terminates the common adjustment of all screen holders.
  • the two slides 4 and 4' carry the supporting devices which are, for example, rollers 5 which are supported to engage with the inner front surface of the gear wheel 8 connected with the screen via the screen head or end support means 10 and thus serve for effecting the longitudinal support or longitudinal tension of the cylindrical screen 9 together with the roller 6 arranged on the base body 18.
  • the guide rollers 11 for guiding opposite sides of the cylindrical screen 9 are rotatable mounted on the slides 4 and 4' for oblique adjustment therewith in relation to their longitudinal axis.
  • the shaft 12 in the case of the slide 4 supports roller 11 and also a suitable spur or bevel gear 13 which is in mesh with the gear wheel 8.
  • the gear 13 and a similar gear on the other opposite screenend (not shown), rotary motion of the screen is applied to both ends. Furthermore, the cylindrical screen 9 rests on the printing blanket 17 or on the material to be printed as transported by the printing blanket l7 and is helped to be put into rotation by the moving printing blanket or the moving material. Additionally, the gear wheel 8 of the cylindrical screen 9 is in'mesh with a gear wheel 7 comprising part of a repeat transmission arranged on the machine and a synchronous drive.
  • machine elements of the screen holder to be ad justed for a given size screen diameter which elements in the represented embodiment are primarily the rollers 5, the guide rollers 6 and the rollers 11, shaft 12 with the gear 13, can be adjusted automatically and simultaneously in exact relation to the screen diameter changes.
  • the inclinations of the guideways can be selected according to the desired angular distribution of the support and guide elements along the screen circumference.
  • the support and guide elements are always to be in the horizontal median plane of the cylindrical screen, thereby requiring an inclination of 45 of the guideways.
  • a screen holder can also have guideways of various inclinations.
  • guideways of various inclinations in addition to a pair of diverging guideways, and an additional, differently inclined guideway and /or an additional pair of differently inclined guideways can be provided.
  • the represented embodiment ought to be altered: for example, the support roller 5, the guide rollers 6 and the shaft 12 with the bevel gear 13 ought to be arranged at different places.
  • Adjustable screen holder means for helping to hold, guide and tension interchangeable cylindrical rotary screens of various diameters and lengths for operable use in conjunction with rotary screen printing machines, which machines conventionally comprise a machine frame with means for supporting and means for driving an endless printing blanket for supporting the material to be printed upon, as well as for at least partially supporting the rotary screens in a manner with the screen axis disposed normally transverse to the longitudinal travel direction of the endless blanket and machine frame, said machines further including cooperable means thereon and on at least one end portion of the rotary screens for rotatively driving same; said adjustable screen holder means comprising in combination:
  • inclined guideway means including a pair of guideways, each having lower and upper portions and diverging from their lower to upper portions, and each of which includes means for mounting them respectively on said support members generally in association with at least one end portion of the given screen to help guidingly support and tension said screen;
  • slide means including a pair of slides (4,4 and means for adjustably mounting one on each of said inclined guideways for movement toward and away from a given screen to be guided and supported therebetween;
  • supplemental longitudinal tension means (5,5) for operative tensioning of said screen at opposed sides thereof via engagement with said cooperable means on the end portion of said rotary screens.
  • Screen holder means as defined in claim 1 wherein said screen-adjusting elements comprise guide elements (11,11) adjustable obliquely with said slides for guiding a cylindrical screen obliquely in relation to its longitudinal direction.
  • Screen holder means as defined in claim 5 further including means (3' for coupling said threaded spindles for synchronous motion.
  • Screen holder means as defined in claim 5 including electric motor means (15) cooperably connected with and to drive one of said spindles and an electric switch (15' mounted on the slide associated with said spindle for controlling said motor by means of contact elements spaced at predetermined points along the corresponding associated guideway.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Rotary Presses (AREA)
US704776A 1967-02-13 1968-02-12 Screen holder for rotary screen printing machines Expired - Lifetime US3565002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT133567A AT289856B (de) 1967-02-13 1967-02-13 Schablonenaufnahme

Publications (1)

Publication Number Publication Date
US3565002A true US3565002A (en) 1971-02-23

Family

ID=3511665

Family Applications (1)

Application Number Title Priority Date Filing Date
US704776A Expired - Lifetime US3565002A (en) 1967-02-13 1968-02-12 Screen holder for rotary screen printing machines

Country Status (8)

Country Link
US (1) US3565002A (cs)
AT (1) AT289856B (cs)
CH (1) CH461542A (cs)
CS (1) CS150567B2 (cs)
DE (1) DE1611335C3 (cs)
FR (1) FR1555067A (cs)
GB (1) GB1164984A (cs)
NL (1) NL150051B (cs)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774533A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine with internal squeegee
US3774534A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine
US3837277A (en) * 1972-08-25 1974-09-24 Precision Screen Machines Fluid self-balancing rotary screen tensioning mount
US3892176A (en) * 1966-02-04 1975-07-01 Konishiroku Photo Ind Rotary screen tensioner for single sided drive
US3986451A (en) * 1972-02-09 1976-10-19 Peter Zimmer Screen holder mechanism for rotary screens
US4056055A (en) * 1974-12-30 1977-11-01 Johannes Zimmer Rotary screen supporting and tensioning means
US4137841A (en) * 1976-04-12 1979-02-06 Fritz Buser Ag. Maschinenfabrik Low inertia screen interrupt mount
US20040089183A1 (en) * 2002-11-08 2004-05-13 Stork Prints B.V. Printing cylinder support unit with support ring
US20050000374A1 (en) * 2002-02-22 2005-01-06 Minami Co., Ltd. Screen printing apparatus
US20050257703A1 (en) * 2002-09-09 2005-11-24 Stork Prints B.V. Printing cylinder supporting unit, use of printing cylinder supporting unit, and printing machine provided with printing cylinder supporting unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044410C2 (de) * 1980-11-26 1985-02-07 Mathias 4815 Schloss Holte Mitter Lagerung der Endköpfe einer Zylinderschablone in einer Rotationsschablonendruckmaschine
DE20310859U1 (de) * 2003-07-08 2004-11-18 J. Zimmer Maschinenbau Ges.m.b.H. Lagerung zum drehbaren Lagern des Endes einer Zylinderschablone an einer Rotationsschablonendruckmaschine und zugehörige Lagereinrichtung
CN112277436A (zh) * 2020-11-02 2021-01-29 李连学 一种可调直径的丝网印刷设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US781114A (en) * 1904-04-26 1905-01-31 Ferdinand Wesel Printing-press.
US1588318A (en) * 1925-02-18 1926-06-08 Smet Lieven Louis De Combined dot and flat cloth printing machine
US2071824A (en) * 1933-10-13 1937-02-23 Poster Products Inc Stencil printing machine
US2905086A (en) * 1957-09-16 1959-09-22 Dick Co Ab Mechanism for adjusting head registration in a printing machine
US3101050A (en) * 1960-11-22 1963-08-20 Reynolds Metals Co Flat plate printing apparatus having accurate register
US3116687A (en) * 1962-01-24 1964-01-07 Harding Leonard Printing presses
US3183831A (en) * 1961-07-31 1965-05-18 Zimmer Franz Peter Rotary printing machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US781114A (en) * 1904-04-26 1905-01-31 Ferdinand Wesel Printing-press.
US1588318A (en) * 1925-02-18 1926-06-08 Smet Lieven Louis De Combined dot and flat cloth printing machine
US2071824A (en) * 1933-10-13 1937-02-23 Poster Products Inc Stencil printing machine
US2905086A (en) * 1957-09-16 1959-09-22 Dick Co Ab Mechanism for adjusting head registration in a printing machine
US3101050A (en) * 1960-11-22 1963-08-20 Reynolds Metals Co Flat plate printing apparatus having accurate register
US3183831A (en) * 1961-07-31 1965-05-18 Zimmer Franz Peter Rotary printing machine
US3116687A (en) * 1962-01-24 1964-01-07 Harding Leonard Printing presses

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892176A (en) * 1966-02-04 1975-07-01 Konishiroku Photo Ind Rotary screen tensioner for single sided drive
US3774533A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine with internal squeegee
US3774534A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine
US3986451A (en) * 1972-02-09 1976-10-19 Peter Zimmer Screen holder mechanism for rotary screens
US3837277A (en) * 1972-08-25 1974-09-24 Precision Screen Machines Fluid self-balancing rotary screen tensioning mount
US4056055A (en) * 1974-12-30 1977-11-01 Johannes Zimmer Rotary screen supporting and tensioning means
US4137841A (en) * 1976-04-12 1979-02-06 Fritz Buser Ag. Maschinenfabrik Low inertia screen interrupt mount
US20050000374A1 (en) * 2002-02-22 2005-01-06 Minami Co., Ltd. Screen printing apparatus
US7134389B2 (en) * 2002-02-22 2006-11-14 Minami Co., Ltd. Screen printing apparatus
US20050257703A1 (en) * 2002-09-09 2005-11-24 Stork Prints B.V. Printing cylinder supporting unit, use of printing cylinder supporting unit, and printing machine provided with printing cylinder supporting unit
US7096783B2 (en) * 2002-09-09 2006-08-29 Stork Prints B.V. Printing cylinder supporting unit, use of printing cylinder supporting unit, and printing machine provided with printing cylinder supporting unit
US20040089183A1 (en) * 2002-11-08 2004-05-13 Stork Prints B.V. Printing cylinder support unit with support ring
US6868779B2 (en) * 2002-11-08 2005-03-22 Stork Prints B.V. Printing cylinder support unit with support ring
CN100374297C (zh) * 2002-11-08 2008-03-12 斯托克印刷公司 具有支承环的印刷滚筒支承单元

Also Published As

Publication number Publication date
NL6802026A (cs) 1968-08-14
NL150051B (nl) 1976-07-15
DE1611335B2 (de) 1974-12-05
DE1611335C3 (de) 1975-07-17
CH461542A (de) 1968-08-31
AT289856B (de) 1971-05-10
FR1555067A (cs) 1969-01-24
GB1164984A (en) 1969-09-24
CS150567B2 (cs) 1973-09-04
DE1611335A1 (de) 1970-12-10

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