US3556004A - Device on rotary printing machines - Google Patents

Device on rotary printing machines Download PDF

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Publication number
US3556004A
US3556004A US731550A US3556004DA US3556004A US 3556004 A US3556004 A US 3556004A US 731550 A US731550 A US 731550A US 3556004D A US3556004D A US 3556004DA US 3556004 A US3556004 A US 3556004A
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US
United States
Prior art keywords
screen
rotary
connecting means
endpieces
rotary heads
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 - Lifetime
Application number
US731550A
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English (en)
Inventor
Mathias Mitter
Karl Mayer
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from AT488967A external-priority patent/AT273868B/de
Priority claimed from AT488567A external-priority patent/AT296928B/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3556004A publication Critical patent/US3556004A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

  • Rotary heads are arranged on the 101/i37-1 frame of the machine on both sides for connection to the end iece5 one of the rotary heads is adjustable in the longitu. Field S H V dinal direction of the screen. Connecting means for the end- --120, 127.1 216, 219, 32 pieces and rotary heads are provided essentially perpendicular to the axis of the screen for releasably coupling the end pieces [56] References cued and rotary heads.
  • the tine walled screen cylinder of-flexible, permeable material must be stretched in axial direction.
  • various stretching devices which are arranged inside the screen and. on the other, stretching devices .whih are worked from the machine frame.
  • the screen cylinders are provided with end rings having a thread.
  • the rotary screen is screwed into the rotary heads coordinated to the machine far frame on both sides by means of said end rings and is stretched in longitudinal direction by axial displacement of one of the tow rotary heads.
  • an object of the present invention is to provide a device for receiving rotary screens which not only permits a longitudinal stretching of the latter from the machine frame, but also a rapid inserting and exchanging of said rotary screens.
  • both rotary heads of each rotary screen is adjustable in longitudinal direction of said screen, both screen endpieces and rotary heads being provided with connecting means essentially perpendicular to the axis of said screens for releasably coupling said endpieces and said rotary heads, said connecting means of said screen endpieces radially extending from inside outwardly andsaid coordinate connecting means of said rotary heads radially extending from outside inwardly or vice versa, said connecting means radially extending from outside inwardly being shaped or arranged like a fork in such mannerthat, when mounting said rotary screen on said rotary headstransversely to the screen axis, said connecting means radially extending from outside inwardly are suitable In axial direction for engaging over said coordinate connecting means radially extending from inside outwardly and are in a forcelocking connection by axial displacement of one of said rotary heads.
  • centering elements are provided on the screen endpieces ahd on the rotary heads.
  • this adjustment or setting device is conveniently combined with the longitudinal stretching of the rotary screen in such manner that the bearing body of one of the two rotary heads on both sides is connected with the piston of a stretching cylinder, said piston being moved outwardly in longitudinal direction of the screen upon admission of the pressure medium, whereas the bearing body of the other rotary head is connected with an adjusting device adjustable in both directionspreferably comprising an adjusting screw, for example operated by a handwheel.
  • the stretched rotary screen is driven on both sides through a driving gear provided in each rotary head. said driving gear being in mesh with a gear adjustably mounted on a driving shaft projecting across the machine in parallel with the screen.
  • FIG. 1 is a longitudinal section of a rotary screen and FIG. 2 is an end view.
  • FIG. 3 is a vertical section of a rotary screen according to FIGS. 1 and 2 and of the rotary heads coordinate to the machine frame, when inserting the rotary screen into the machine.
  • FIG. 4 is a horizontal section of a rotary screen inserted into the machine comprising the rotary heads coordinate to the machine frame, the screen stretching elements and parts of the screen drive.
  • FIG. 5 A further embodiment of a rotary screen is shown in FIG. 5 in vertical section and in FIG. 6 in a section along VI-VI of FIG. 5,
  • FIG. 7 is a vertical section of a frontal zone of the rov tary screen according to FIGS. 5' and 7 comprising a coordinate rotary head.
  • FIG. 8 the frontal zone of the same rotary screen is shown, but comprising another rotary head.
  • the rotary screen consists of a screen cylinder 1 which is mounted on one endpiece on both frontal sides.
  • Said endpieces 2 are provided with three ring ribs or ring discs 3, 4, 5 perpendicular to the axis, a ring-shaped groove 6 being formed between the two inner ring ribs 3.
  • the outer ring rib forms the connecting means of said screen endpiece perpendicular to the axis and is provided with a radial recess, particularly a notch of the breadth A which is equal to the inner diameter of the ring rib 5.
  • a ring nut 7 concentric to the screen axis is formed.
  • the pieces of construction which serve for receiving and longitudinally stretching the rotary screen in the machine, are the opposite rotary heads 8 which are revolubly mounted in the bearing bodies 10, 10' through axial bearings 9.
  • the rotary heads 8 consist of three parts:--as shown in detail in FIG. 3- the bearing sleeve 11, the driving gear 12 and the connecting means 13 for the rotary screen.
  • On the connecting means 13 a ring projection 14 concentric to the axis of the rotary head 8 is provided, said ring projection having the same diameter as the ring nut 7 in the outer ring rib of the endpieces 2 of the screen.
  • the three parts of the rotary head are connected by means of connecting screws 15.
  • the two bearingbodies I0, 10' are adjustable in longitudinal direction of the screen relative to .the machine frame 16, as can be seen in FIG. 4, i.e. by means of bolts 18 or 18'.
  • the piston bar 19 of a stretching cylinder 20 acts upon one stretching yoke 17, the other stretching yoke is operated by an adjusting screw 21 by means of the hand wheel 22.
  • the ring nuts 7 in the ring ribs 5 and the ring projections 14 on the connecting means 13 of the rotary head 8 are opposite in axial distance
  • the piston of the stretching cylinder 20-as in FIG. 4 is acted upon with a pressure medium. for example pressure air or oil, and the left bearing body 10 is shifted to the left, which causes the ring projections 14 on the connecting means 13 of the rotary heads to engage in the ring nuts 7 of the ring ribs 5 of the screen endpieces 2, the stretching forces being thus transmitted to the screen cylinder 1 of the rotary screen.
  • a pressure medium for example pressure air or oil
  • the right bearing body 10 comprising the rotary head 8 is shifted to the left so as to disengage again the ring projections 14 and the ring nuts 7.
  • the left as well as the right bearing body are adjustable for the purpose to permit a side displacement of the rotary screen as a whole for the side repeat adjustment. in the embodiment according to FIG. 4 a displacement can be effected in both directions by a manipulation of the handwheel 22, when the rotary screen is inserted and the piston of the stretching cylinder 20 is acted upon with a pressure medium, in accordance with the direction of rotation of the hand wheel 22.
  • the displacement of the right bearing body 10' also permits an easy adoption of the device to different screen lengths.
  • the rotary screen is driven by the gears 24 mounted on a driving shaft 23 projecting across the machine in parallel with the screen axis. said gears 24 being in mesh with driving gears 12 of the rotary heads 8.
  • the driving shaft is conveniently driven by a repeat gear not shown.
  • the gears 24 can be axially adjusted and connected with the driving shaft 23 by means of a clamping ring 25 and an adjusting nut 26.
  • Bearing sleeves 27 are joined to the gears 24 through which the driving shaft 23 and the bearing bodies 10, 10' are revolvably mounted.
  • the driving shaft 23 together with the opposite guide rod 28 serves for the longitudinal guide of the bearing bodies 10, 10.
  • the rotary screen is formed by the screen cylinder 1 and both endpieces 2.
  • the endpieces 2 comprise a shoulder 29, an adjacent pro jection 30 and a ring disc 31 perpendicular to the axis radially projecting from said projection 30 outwardly which form the connecting means perpendicular to the axis of the screen endpieces 2 according to the invention.
  • the projection 30 has only partially a cylindrical outer surface. Three partial zones of the outer surface of the projection 30 are even driving faces 32 (H6. 6).
  • FIG. 7 shows the connection. according to the invention, of the rotary screen in accordance with FIGS. 5 and 6, with one of the two rotary heads 8 which are revolvably mounted in the bearing body 10 through axial bearing 9.
  • An axially elastic ring 33 is mounted. not capable of rotation. on the frontal side of the rotary head 8 directed towards the rotary screen.
  • the axial elasticity is caused by cup springs 34 which are arranged below the screw head of the clamping screws 35. Apart from the clamping screws 35.
  • bolts 36 are provided opposite to the rotary head 8 so as to insure the ring against rotation.
  • connecting means 37 essentially perpendicular to the axis radially extending inwardly, i.e.
  • the inner edges i.e. the edges of the connecting means 37 directed towards the screen axis, have linearly extending side faces appropriate for resting on the driving faces 32 of the projection 30 of the screen endpieces 2.
  • the rotary screen is taken along in rotation upon the rotation of the rotary head 8, since the inner edges of the connecting means 37 and the driving faces 32 work together.
  • the connecting means 37 are provided with a recess 38 concentric to the screen axis, the diameter of said recess being equal to the outer diameter of the ring disc 31 of the screen endpieces 2.
  • This recess 38 serves for ccnteringthe rotary screen, the ring disc 31 coming in mesh in the recess 38 upon the axial stretching (by axial displacement of the bearing body 10 of one of the rotary heads 8).
  • the rotary screen has the form as in FIGS/S and 6.
  • the screen cylinder is provided on both sides with screen endpieces 2 comprising the shoulder 29, the projection 30 and the ring disc 31.
  • Another ring 33 is axially elastic, not capable of rotation, mounted on the frontal side directed towards the rotary screen of the rotary body 8 mounted in the bearing body 10.
  • the axial elasticity is caused according to FIG. 8 by an elastically deformable ring 39, for example of rubber, between the ring 33 and the frontal face ofthe rotary head 8.
  • connecting means 37 perpendicular to the axis, radially extending inwardly in direction of the screen axis are provided on said ring 33, said connecting means comprising a recess 38 concentric to the screen axis.
  • the inner edges of the connecting means directed towards the screen axis extend linearly.
  • the elastic elements in H68. 7 and 8, i.e. the cup springs 34 or the elastically deformable ring 39, serve for compensating eventual deviations of the ring disc 31 from an exact position perpendicular to the axis as in the case of screen endpieces 2 obliquely glued in the screen cylinder 1.
  • the screen endpieces 2 are not provided with a ring groove 6 (FIG. 1) for collecting the excess of color.
  • a ring edge 40 projects instead from the inner edge of the shoulder 29 of the screen endpieces 2 into the screen inside, on which the color rising at the side can drop off again inside the screen upon the rotation of the rotary screen.
  • a device in combination with screen printing machines for exchangeably receiving and longitudinally stretching a rotary screen having endpieces comprising a frame, rotary heads arranged on said frame on both sides for connection to said endpieces, one of said rotary heads being adjustable in the lonaxis, said connecting means on said rotary heads are movable in axial direction for engaging over. said cooperating connecting means and means for forcelocking the connection means by axial displacement of one of said rotary heads in a direction away from the other.
  • a device wherein corresponding form-closed faces are provided for the nonslip coupling of said endpieces and said rotary heads on said screen endpieces and on said rotary heads.
  • a device wherein a projection is joined to said connecting means of said rotary heads and axisparallel driving faces are provided on said projection, the inner edge of saidspaced connecting means of said screen endpieces extending correspondingly to the driving faces on said rotary heads.
  • a device wherein a projection is joined to said connecting means of said endpieces. axis-parallel driving faces being provided on said projection, the inner edge of said spaced connecting means of said rotary heads extending correspondingly to the driving faces on said endpieces.
  • said connecting means of said rotary heads are provided with a recess concentric to the screen axis on the side away from the rotary screen. the diameter of said recess being equal to the diameter of the circular disc-shaped connecting means.
  • a device according to claim 10, wherein said resilient mounting comprises screws and cup springs are provided below the heads of said screws.
  • a device according to claim 10, wherein a resiliently deformable ring is provided between said connecting means.
  • a device according 'to claim l,'wherein a ring groove open towards the screen axis is provided in an end piece.
  • a device according to claim 13 wherein said ring groove is formed by a pair of ring ribs perpendicular to the axis of said end piece 15.
  • a device according to claim 1. wherein said screen end pieces have a shoulder extending in the direction of the screen axis and a ring edge projects inside the screen from the zone at the inner edge of said shoulder.
  • a device wherein a bearing body of one of said rotary heads is connected with the piston of a stretching cylinder, said piston being radially moved outwardly upon the admission of a pressure medium in longitudinal direction of'the screen and the bearing body of the other rotary head has a device adjustable in both directions.
  • a device wherein the stretched rotary screen is driven on both sides through a driving gear provided in each rotary head. said driving gear being in mesh with a gear adjustably mounted on the driving shaft projecting across the machine parallel to said screen.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
US731550A 1967-05-26 1968-05-23 Device on rotary printing machines Expired - Lifetime US3556004A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT488967A AT273868B (de) 1967-05-26 1967-05-26 Einrichtung an Rundschablonen
AT488567A AT296928B (de) 1967-05-26 1967-05-26 Schablonenaufnahme für Rundschablonen

Publications (1)

Publication Number Publication Date
US3556004A true US3556004A (en) 1971-01-19

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ID=25601626

Family Applications (1)

Application Number Title Priority Date Filing Date
US731550A Expired - Lifetime US3556004A (en) 1967-05-26 1968-05-23 Device on rotary printing machines

Country Status (4)

Country Link
US (1) US3556004A (de)
CH (1) CH472970A (de)
DE (1) DE1761462A1 (de)
NL (1) NL6807370A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837277A (en) * 1972-08-25 1974-09-24 Precision Screen Machines Fluid self-balancing rotary screen tensioning mount
US3858507A (en) * 1973-04-09 1975-01-07 Cranston Print Works Co Cylindrical stencil with plastic end rings
US3985432A (en) * 1974-07-31 1976-10-12 Addressograph Multigraph Corporation Modulator screen drum assembly
US4026208A (en) * 1973-11-21 1977-05-31 Raylar Corporation Rotary printing screen having heat-shrunk support members
US4056055A (en) * 1974-12-30 1977-11-01 Johannes Zimmer Rotary screen supporting and tensioning means
US4079672A (en) * 1975-09-08 1978-03-21 Manfred Gasser Internal nonrotary bearing housing and tensioning means
US4080894A (en) * 1975-08-12 1978-03-28 Societe Alsacience De Constructions Mechaniques De Mulhouse Rotary printing machines
US4151064A (en) * 1977-12-27 1979-04-24 Coulter Stork U.S.A., Inc. Apparatus for sputtering cylinders
US4280405A (en) * 1979-09-27 1981-07-28 Peterzimmer America, Inc. Assembly for supporting printing screen
US5213033A (en) * 1991-05-10 1993-05-25 Illinois Tool Works Inc. Press-ready rotary screen printing apparatus
US5617786A (en) * 1994-08-02 1997-04-08 Riso Kagaku Corporation Stencil printing drum which prevents ink leakage
US20050160925A1 (en) * 2002-05-03 2005-07-28 Stohr Manfred G. Screening machine and screening cylinder
US20110174173A1 (en) * 2010-01-18 2011-07-21 Stork Prints America, Inc. Split end ring for rotary printing screen and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919376A3 (de) * 1997-11-26 2000-02-23 Alexander Lintner Lagervorrichtung für eine zylindrische Siebdruckschablone

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1739264A (en) * 1924-04-24 1929-12-10 Simpson George Combined color and flock printing machine
US2071824A (en) * 1933-10-13 1937-02-23 Poster Products Inc Stencil printing machine
US2292602A (en) * 1940-04-16 1942-08-11 Joseph P Biondi Printing device
CA513447A (en) * 1955-06-07 J. C. De Oliveira Barros Almerindo Water colour fabric-stamping and paper-printing systems
GB743377A (en) * 1953-09-28 1956-01-11 Druckmaschinenwerk Victoria Vv Improvements in rotary sheet-printing machines for letter press printing
DE1101446B (de) * 1959-08-14 1961-03-09 John A Mcfarland Von Hand ortsbewegliche Abziehpresse zur Entnahme von Probedrucken
CA623324A (en) * 1961-07-04 Magnat Machinery And Pattern Corp. Mechanism for securing printing roll to shaft
US3205814A (en) * 1964-09-24 1965-09-14 William F Huck Rotary cylinder construction of removable shell type
US3304860A (en) * 1963-09-12 1967-02-21 Stork & Co Nv Screen printing machine and cylindrical screen mounting
US3331318A (en) * 1964-06-24 1967-07-18 Reynolds Metals Co Proof press system
US3391635A (en) * 1966-12-12 1968-07-09 M & M Res Engineering Inc Screen stretcher for printing apparatus
US3398680A (en) * 1967-03-23 1968-08-27 Roto Print Machinery Corp Duplex rotary screen printing machine
US3404623A (en) * 1966-04-12 1968-10-08 Ferranti Ltd Screen printing apparatus

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA623324A (en) * 1961-07-04 Magnat Machinery And Pattern Corp. Mechanism for securing printing roll to shaft
CA513447A (en) * 1955-06-07 J. C. De Oliveira Barros Almerindo Water colour fabric-stamping and paper-printing systems
US1739264A (en) * 1924-04-24 1929-12-10 Simpson George Combined color and flock printing machine
US2071824A (en) * 1933-10-13 1937-02-23 Poster Products Inc Stencil printing machine
US2292602A (en) * 1940-04-16 1942-08-11 Joseph P Biondi Printing device
GB743377A (en) * 1953-09-28 1956-01-11 Druckmaschinenwerk Victoria Vv Improvements in rotary sheet-printing machines for letter press printing
DE1101446B (de) * 1959-08-14 1961-03-09 John A Mcfarland Von Hand ortsbewegliche Abziehpresse zur Entnahme von Probedrucken
US3304860A (en) * 1963-09-12 1967-02-21 Stork & Co Nv Screen printing machine and cylindrical screen mounting
US3331318A (en) * 1964-06-24 1967-07-18 Reynolds Metals Co Proof press system
US3205814A (en) * 1964-09-24 1965-09-14 William F Huck Rotary cylinder construction of removable shell type
US3404623A (en) * 1966-04-12 1968-10-08 Ferranti Ltd Screen printing apparatus
US3391635A (en) * 1966-12-12 1968-07-09 M & M Res Engineering Inc Screen stretcher for printing apparatus
US3398680A (en) * 1967-03-23 1968-08-27 Roto Print Machinery Corp Duplex rotary screen printing machine

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837277A (en) * 1972-08-25 1974-09-24 Precision Screen Machines Fluid self-balancing rotary screen tensioning mount
US3858507A (en) * 1973-04-09 1975-01-07 Cranston Print Works Co Cylindrical stencil with plastic end rings
US4026208A (en) * 1973-11-21 1977-05-31 Raylar Corporation Rotary printing screen having heat-shrunk support members
US3985432A (en) * 1974-07-31 1976-10-12 Addressograph Multigraph Corporation Modulator screen drum assembly
US4056055A (en) * 1974-12-30 1977-11-01 Johannes Zimmer Rotary screen supporting and tensioning means
US4080894A (en) * 1975-08-12 1978-03-28 Societe Alsacience De Constructions Mechaniques De Mulhouse Rotary printing machines
US4079672A (en) * 1975-09-08 1978-03-21 Manfred Gasser Internal nonrotary bearing housing and tensioning means
US4151064A (en) * 1977-12-27 1979-04-24 Coulter Stork U.S.A., Inc. Apparatus for sputtering cylinders
US4280405A (en) * 1979-09-27 1981-07-28 Peterzimmer America, Inc. Assembly for supporting printing screen
US5213033A (en) * 1991-05-10 1993-05-25 Illinois Tool Works Inc. Press-ready rotary screen printing apparatus
US5617786A (en) * 1994-08-02 1997-04-08 Riso Kagaku Corporation Stencil printing drum which prevents ink leakage
US20050160925A1 (en) * 2002-05-03 2005-07-28 Stohr Manfred G. Screening machine and screening cylinder
US7287467B2 (en) * 2002-05-03 2007-10-30 Kba-Giori S.A. Screening machine and screening cylinder
US20070261575A1 (en) * 2002-05-03 2007-11-15 Kba-Giori S.A., Rue De La Paix, Screen printing machine and screen cylinder
US7458319B2 (en) 2002-05-03 2008-12-02 Kba-Giori S.A. Screen printing machine and screen cylinder
CN101028754B (zh) * 2002-05-03 2010-05-19 卡巴-乔利有限公司 丝网印刷机
US20110174173A1 (en) * 2010-01-18 2011-07-21 Stork Prints America, Inc. Split end ring for rotary printing screen and method

Also Published As

Publication number Publication date
DE1761462A1 (de) 1971-06-16
NL6807370A (de) 1968-11-27
CH472970A (de) 1969-05-31

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