US3895575A - Metering bar assembly for ink fountain roller - Google Patents

Metering bar assembly for ink fountain roller Download PDF

Info

Publication number
US3895575A
US3895575A US371594A US37159473A US3895575A US 3895575 A US3895575 A US 3895575A US 371594 A US371594 A US 371594A US 37159473 A US37159473 A US 37159473A US 3895575 A US3895575 A US 3895575A
Authority
US
United States
Prior art keywords
slides
roller
slide
slot
ink
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
US371594A
Other languages
English (en)
Inventor
Bert Cappel
Siegfried Schuhmann
Klaus Wolf
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.)
Roland Offsetmaschinenfabrik Faber and Schleicher AG
Original Assignee
Roland Offsetmaschinenfabrik Faber and Schleicher 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 Roland Offsetmaschinenfabrik Faber and Schleicher AG filed Critical Roland Offsetmaschinenfabrik Faber and Schleicher AG
Priority to US551630A priority Critical patent/US3913479A/en
Application granted granted Critical
Publication of US3895575A publication Critical patent/US3895575A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/045—Remote control of the duct keys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2231/00—Inking devices; Recovering printing ink
    • B41P2231/12—Axially segmented ink blades

Definitions

  • ABSTRACT An ink fountain having a composite metering bar made up of a plurality of alined sections or slides spaced parallel to one another, the bar being mounted in a horizontal slot formed in the frame of the fountain and in abutting relation with the surface of the roller.
  • the sections are embedded in a strip of flexible plastic or the like which bridges the sections so as to present to the roller a continuous metering edge and so as to present to the walls of the slot. continuous sealing surfaces, while nevertheless permitting individual endwise movement of each section toward and away from the roller independently of the adjacent sections.
  • An eccentric is connected to each of the sections at a point remote from the presented edge for adjusting the position of the section with respect to the roller thereby to adjust the thickness of the ink film in respective zones.
  • SHEET 1 METERING BAR ASSEMBLY FOR INK FOUNTAIN ROLLER It is an object of the present invention to provide an ink fountain which employs a composite metering bar in abutting relatation to the surface of the fountain roller and which is divided into spaced parallel sections for individual endwise adjustment toward and away from the roller thereby to determine film thickness.
  • an ink fountain which enables a precise and fine adjustment of the thickness of ink film. zone by zone. along the length of the fountain roller and in which the adjustment remains constant in spite of changes in operating conditions as. for example, changes in hydrodynamic pressure which varies in accordance with the speed of the roller and the viscosity of the ink.
  • FIG. I shows in vertical section an ink fountain embodying the present invention.
  • FIG. 2 is a sectional view looking along the line 22 in FIG. 1 and showing a number of slides which comprise the metering bar.
  • FIG. 3 is an enlarged view of a typical metering slide taken edgewise and looking along the line 33 in FIG.
  • FIG. 1 there is shown an ink fountain having a frame which includes an upper portion 11 and a lower portion 12 pivoted at 13. The two portions are accurately related to one another by a series of pins 14 which are distributed longitudinally at intervals and are held drawn together by a series of screws 15 (only one being shown).
  • a metering bar of composite construction Located in the slot 20 is a metering bar of composite construction to which more detailed reference will be made. It will suffice for the moment to note that the metering bar has a presented edge 26 which engages the surface 27 of the fountain roller 28.
  • Conventional means (not shown) are provided for journaling the fountain roller 28 in the ends of the fountain frame and for rotating the fountain roller at a predetermined speed.
  • the metering bar 25 is preferably located in a plane which intersects. or which comes close to intersecting. the axis 29 of the roller.
  • the metering bar is made up of a series of relatively thick sections in the form of interconnected slides uniformly spaced along the fountain roller to define zones of adjustment of ink film, with the spaces between the adjacent slides being intimately occupied by flexible material in bridging relation so that the bar presents to the roller 21 continuous metering edge while nevertheless permitting positive individual endwise movement of each slide toward and away from the roller independently of the adjacent slides.
  • all of the slides of the metering bar are engaged by. or molded in. a continuous strip of tough flexible material which presents to the roller a continuous metering edge and which presents to the walls of the slot. formed in the frame, continuous sealing surfaces to prevent leakage of ink.
  • An eccentric. or cam. coupled to the remote end portion of each of the slides enables adjustment of the slide toward and away from the roller for independent control of the ink film zone by zone.
  • the metering bar 25 will be seen to consist of a number of identical sections or slides 30.
  • Each slide has a flat head portion 31, a longitudinal or shank portion 32, and a remote or end portion 33.
  • the head portion 31 is preferably of tapering triangular profile having a presented edge 34, and the remote portion 33 is preferably annular in shape for snug reception of the outer race of a bearing 35 which forms the output of an individual eccentric drive mechanism 36 to which reference will be made.
  • the sections of the composite metering bar are all interconnected by mounting them in a longitudinal strip 40 of tough yet flexible and resilient plastic material.
  • the strip of plastic 40 is preferably of rectangular cross section. having an upper surface 41, a lower surface 42 parallel thereto. and a front. or presented. surface previously referred to and indicated at 26.
  • the bar sections have their edges 34 spaced from one another in the plastic strip as indicated at 43. Because of this spacing. and because of the large average spacing between adjacent sections. due to the triangular shape of the portion 44 of the strip which lies between them. each section has a high degree of longitudinal mobility. that is, each section may be adjusted longitudinally backwardly or fowardly over the necessary range of film thickness without affecting the adjustment of the adjacent sections.
  • the sections are preferably provided with upraised land surfaces 45, 46, which, as shown in FIG. 2, are triangular in profile. and which are flush with the upper and lower surfaces 41, 42, respectively. of the flexible strip.
  • the plastic material commercially available under the trademark VULKOLLAN is preferably employed as the material of the strip 40, it will be understood that the invention is not limited to any particular material and that many different plastics and synthetic rubbers are selectively available which combine the features of toughness, flexibility, or resiliency, and dimensional stability, with the added feature of being adherent to the engaged surfaces of the bar sections.
  • VULKOLLAN plastic material commercially available under the trademark VULKOLLAN
  • the invention is not limited to any particular material and that many different plastics and synthetic rubbers are selectively available which combine the features of toughness, flexibility, or resiliency, and dimensional stability, with the added feature of being adherent to the engaged surfaces of the bar sections.
  • FIG. 1 illustrates the eccentric drive 36 used for an individual one of the slides 30.
  • a stubshaft Received within the anti-friction bearing 35 is a stubshaft formed at the end ofa bushing 55 which has a body portion 56 with a bore 57.
  • the bore receives a drive shaft 58.
  • the bore 57 is not coaxial with the stubshaft but is slightly offset or eccentric, so that, as the shaft 58 rotates, slight orbital motion is imparted to the annular end 33 of the slide,
  • a drive assembly 60 is used, made up of a motor 61 and step down gear box 62, the gears not being shown.
  • the frame of the gear box is secured to the frame of the fountain by mounting screws 63, 64.
  • a certain amount of lateral play is available between the mounting screws and the gear box 62 so that the gear box may be shifted backwardly or forwardly a small amount parallel to the plane of the metering bar so as to establish a reference position for the slide prior to screwing the mounting screws 63, 64 tight.
  • each eccentric bushing 56 may be manually rotated. However, it is preferred to drive the eccentrics by remote electrical control, and the motors 61 may be controlled, for either unidirectional or bidirectional rotation by suitable switches, enabling the position of each slide to be independently adjusted to produce a fine degree of clearance, Zone by zone, from a central console.
  • an ink fountain comprising, a frame defining a horizontal retaining slot having parallel walls, a fountain roller rotatable in the frame adjacent the slot, a composite metering bar mounted in the slot and having a presented edge arranged in abutting relation with the surface of the roller, the frame being shaped to support a body of ink adjacent the metering bar so that a film of ink is formed on the roller by the bar as the roller is rotated, the metering bar being made up of a series of slides uniformly spaced from one another along the fountain roller, the slides having individually presented tips in longitudinal alinement to define zones of adjustment of the ink film, means including tough resilient material intimately occupying the spaces between the slides and covering the presented tips of the slides for bridging the slides so as to present to the roller a continuous metering edge of resilient material and so as to present to the respective walls of the slot continuous sealing surfaces while nevertheless permitting individual endwise relative movement of each slide toward and away from the roller independently of the adjacent slides, and separate adjusting means con n
  • each slide having remotely located with respect to its presented tip an eccentric of limited lateral throw having an axis perpendicular to the plane of the slide for the purpose of adjusting the endwise position of the slide, each slide being elongated in a direction radially of the fountain roller and having a shank free of lateral obstruction. the length of the slide being sufficient so that the lateral throw of the eccentric incident to imparting adjusting movement to the slide has substantially no effect upon the angling of the presented tip of the slide with respect to the roller.
  • each slide having a flat head portion of generally triangular outline, an elongated shank portion and an annular remote end portion.
  • the remote end portion intimately enclosing an anti-friction bearing having means at its center for imparting eccentric motion for individual longitudinal adjustment of the slide.
  • the portions of the slide being formed integrally with one another.
  • fountain roller rotatable in the frame adjacent the slot.
  • the frame being shaped to support a body of ink adjacent the metering bar so that a film of ink is formed on the roller by the bar as the roller is rotated, the metering bar being made up of a series of slides uni formly spaced along the fountain roller to define zones of adjustment of the ink film.
  • the means including tough resilient material intimately occupying the spaces between the slides for bridging the slides so as to present to the roller a continuous metering edge and so as to present to the walls of the slot continuous sealing surfaces while nevertheless permitting individual endwise sliding movement of each slide toward and away from the roller independently of the adjacent slides, and adjusting means connected to each of the slides at a point remote from the presented edge for adjusting the position of the slide with respect to the roller thereby to adjust the thickness of the ink film, the tough resilient ma terial being in the form of a longitudinally extending molded strip of rectangular cross section with the spaced slides being embedded therein. the presented portions of the slides being closely spaced and the portion of each slide which is embedded in the molded strip being of tapering profile to increase the average spacing between the slides thereby to increase the mobility of each slide relative to the next.
  • the frame being shaped to support a body of ink adjacent the metering bar so that a film of ink is formed on the roller by the bar as the roller is rotated.
  • the metering bar being made up of a series of slides uniformly spaced along the fountain to define zones of adjustment of the ink film.
  • the means including tough resilient material intimately occupying the spaces between the slides for bridging the slides so as to present to the roller a continuous metering edge and so as to present to the walls of the slot continuous sealing surfaces while nevertheless permitting individual endwise sliding movement of each slide toward and away from the roller independently of the adjacent slides, and adjusting means connected to each of the slides at a point remote from the presented edge for adjusting the position of the slide with respect to the roller thereby to adjust the thickness of the ink film, the tough resilient material being in the form of a longitudinally extending molded strip of rectangular cross section with the spaced slides being embedded therein, the slides having land surfaces occupying the central portions thereof, which land surfaces are co-planar with respect to the upper and lower surfaces of the strip of resilient material for precise and uniform positioning of each slide within the slot and to provide positive lateral support.
  • an ink fountain comprising a frame defining a horizontal slot having parallel walls, a fountain roller rotatable in the frame adjacent the slot, a plurality of metering bar slides mounted in the slot arranged in a plane parallel to one another and with their tips spaced from one another. each of the slides having a flat head portion with the tips thereon arranged to abut the roller and having a shank terminating in a remote end portion, the frame being shaped to support a body of ink adjacent the metering bar and in contact with the roller.
  • the head portions being embedded in a continuous strip of tough resilient material which bridgingly interconnects the head portions and intimately occupies the spaces therebetween so as to present to the roller a continuous metering edge and to present to the walls of the slot flat continuous sealing surfaces to prevent leakage of ink, the strip being sufficiently flexible as to permit individual endwise sliding movement of each slide toward and away from the roller independently of the adjacent slides, and a motor driven eccentric having an axis perpendicular to the plane of the slides and captively coupled to the remote end portion of each of the slides for longitudinal adjustment of the slide in both directions thereby to adjust the thickness of the ink film in the region of the slide, the shank portions of the slides adjacent the eccentrics being elongated and free of the tough, resilient material so as to be freely movable in the lateral direction in response to throw of the associated eccentric thereby to reduce the driving power required to effect a longitudi-

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
US371594A 1972-06-21 1973-06-20 Metering bar assembly for ink fountain roller Expired - Lifetime US3895575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US551630A US3913479A (en) 1973-06-20 1975-02-21 Ink fountain having a continuous metering bar with zonal adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2230126A DE2230126B2 (de) 1972-06-21 1972-06-21 Dosiervorrichtung eines Farbkastens an Druckmaschinen

Publications (1)

Publication Number Publication Date
US3895575A true US3895575A (en) 1975-07-22

Family

ID=5848257

Family Applications (1)

Application Number Title Priority Date Filing Date
US371594A Expired - Lifetime US3895575A (en) 1972-06-21 1973-06-20 Metering bar assembly for ink fountain roller

Country Status (7)

Country Link
US (1) US3895575A (show.php)
CH (1) CH565039A5 (show.php)
DE (1) DE2230126B2 (show.php)
FR (1) FR2189213B1 (show.php)
GB (1) GB1437974A (show.php)
IT (1) IT989288B (show.php)
SE (1) SE394866B (show.php)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978788A (en) * 1975-05-16 1976-09-07 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Ink metering assembly for printing press
US4058058A (en) * 1976-02-26 1977-11-15 George Hantscho Company, Inc. Ink fountain for printing presses
US4084510A (en) * 1975-08-25 1978-04-18 Addressograph-Multigraph Corporation Ink fountain
US4123972A (en) * 1977-05-12 1978-11-07 Baldwin-Gegenheimer Corporation Positioning mechanism for locating the edge of an ink metering means
US4393775A (en) * 1980-08-14 1983-07-19 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Arrangement for metering the ink quantity in inking units on printing presses
US4502386A (en) * 1982-05-13 1985-03-05 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Ink fountain having temperature responsive element
US5127326A (en) * 1991-04-26 1992-07-07 Cra-Tek Industrial Controls, Inc. Ink key control apparatus
US6477953B2 (en) * 1999-06-03 2002-11-12 Mitsubishi Heavy Industries, Ltd. Ink supply device and ink key thereof

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369093A1 (fr) * 1976-10-28 1978-05-26 Baldwin Gegenheimer Corp Dispositif encreur pour presses d'impression
US4170177A (en) * 1977-04-07 1979-10-09 Toshiba Kikai Kabushiki Kaisha Printing machine inking device with plurality of cam levers
US4159651A (en) * 1977-05-09 1979-07-03 Baldwin-Gegenheimer Corporation Flexure positioning mechanism
DE2929891A1 (de) * 1979-07-24 1981-02-12 Roland Man Druckmasch Farbkasten fuer eine rotationsdruckmaschine
DE2937037C2 (de) * 1979-09-13 1984-01-26 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbdosiereinrichtung an einer Druckmaschine
DE3033996C2 (de) * 1980-09-10 1984-03-08 Koenig & Bauer AG, 8700 Würzburg Farbkasten für Druckmaschinen
US4372207A (en) * 1981-03-10 1983-02-08 Komori Printing Machinery Co., Ltd. Ink fountain devices for use in printing press
DE3400831C2 (de) * 1984-01-12 1986-03-06 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbkasten für eine Druckmaschine
DE3423735C1 (de) * 1984-06-28 1985-06-05 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbkasten fuer Rotationsdruckmaschinen mit einer Farbdosiereinrichtung
US4773327A (en) * 1987-04-09 1988-09-27 Am International Ink metering blade
US5279223A (en) * 1991-06-28 1994-01-18 Kabushiki Kaisha Tokyo Kikai Seisakusho Ink feed adjusting apparatus for use in ink supply equipment

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US176193A (en) * 1876-04-18 Improvement in damping apparatus for lithographic presses
US358473A (en) * 1887-03-01 John nuebling
US1275348A (en) * 1918-01-28 1918-08-13 Wood Newspaper Mach Corp Apparatus for inking printing-presses.
US1422017A (en) * 1917-12-19 1922-07-04 Wood Newspaper Mach Corp Page cut-off device for ink fountains
US1778476A (en) * 1927-12-21 1930-10-14 Wood Newspaper Mach Corp Rigid-blade fountain adjustment
US2190929A (en) * 1937-08-16 1940-02-20 Duplex Printing Press Co Printing press fountain
US2583640A (en) * 1949-02-08 1952-01-29 Time Inc Sectional blade ink fountain for printing presses
US2837024A (en) * 1955-04-07 1958-06-03 John Waldron Corp Ink fountain blade
US3110254A (en) * 1959-07-24 1963-11-12 William F Davis Means for regulating fluid control apparatus
US3356067A (en) * 1966-09-14 1967-12-05 Lodding Engineering Corp Doctor blades having relieved ends
US3730090A (en) * 1971-02-16 1973-05-01 North American Rockwell Adjusting arrangement for ink fountain blade

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US176193A (en) * 1876-04-18 Improvement in damping apparatus for lithographic presses
US358473A (en) * 1887-03-01 John nuebling
US1422017A (en) * 1917-12-19 1922-07-04 Wood Newspaper Mach Corp Page cut-off device for ink fountains
US1275348A (en) * 1918-01-28 1918-08-13 Wood Newspaper Mach Corp Apparatus for inking printing-presses.
US1778476A (en) * 1927-12-21 1930-10-14 Wood Newspaper Mach Corp Rigid-blade fountain adjustment
US2190929A (en) * 1937-08-16 1940-02-20 Duplex Printing Press Co Printing press fountain
US2583640A (en) * 1949-02-08 1952-01-29 Time Inc Sectional blade ink fountain for printing presses
US2837024A (en) * 1955-04-07 1958-06-03 John Waldron Corp Ink fountain blade
US3110254A (en) * 1959-07-24 1963-11-12 William F Davis Means for regulating fluid control apparatus
US3356067A (en) * 1966-09-14 1967-12-05 Lodding Engineering Corp Doctor blades having relieved ends
US3730090A (en) * 1971-02-16 1973-05-01 North American Rockwell Adjusting arrangement for ink fountain blade

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978788A (en) * 1975-05-16 1976-09-07 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Ink metering assembly for printing press
US4084510A (en) * 1975-08-25 1978-04-18 Addressograph-Multigraph Corporation Ink fountain
US4058058A (en) * 1976-02-26 1977-11-15 George Hantscho Company, Inc. Ink fountain for printing presses
US4123972A (en) * 1977-05-12 1978-11-07 Baldwin-Gegenheimer Corporation Positioning mechanism for locating the edge of an ink metering means
US4393775A (en) * 1980-08-14 1983-07-19 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Arrangement for metering the ink quantity in inking units on printing presses
US4502386A (en) * 1982-05-13 1985-03-05 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Ink fountain having temperature responsive element
US5127326A (en) * 1991-04-26 1992-07-07 Cra-Tek Industrial Controls, Inc. Ink key control apparatus
US6477953B2 (en) * 1999-06-03 2002-11-12 Mitsubishi Heavy Industries, Ltd. Ink supply device and ink key thereof
US6550386B2 (en) 1999-06-03 2003-04-22 Mitsubishi Heavy Industries, Ltd. Ink supply device

Also Published As

Publication number Publication date
FR2189213A1 (show.php) 1974-01-25
SE394866B (sv) 1977-07-18
DE2230126B2 (de) 1974-06-12
DE2230126A1 (de) 1974-01-17
GB1437974A (en) 1976-06-03
CH565039A5 (show.php) 1975-08-15
IT989288B (it) 1975-05-20
FR2189213B1 (show.php) 1979-05-04

Similar Documents

Publication Publication Date Title
US3895575A (en) Metering bar assembly for ink fountain roller
CA1097133A (en) Ink duct for offset or relief printing presses
US3983812A (en) Inking system on printing presses having provision for varying ink distribution peripherally on printing plate
US4328748A (en) Arrangement for metering ink on the fountain roller of a printing press
DE2258321C3 (de) Vorrichtung zum Befeuchten von Druckplatten in Rotationsdruckmaschinen
US3978788A (en) Ink metering assembly for printing press
EP0085164B1 (de) Farbmesser und Einstellvorrichtung für das Farbmesser am Farbkasten von Rotationsdruckmaschinen
US4393775A (en) Arrangement for metering the ink quantity in inking units on printing presses
JPH0741716B2 (ja) スクリーンローラと協働するインキレール
US4393776A (en) Ink fountain device for use in printing press
GB2079676A (en) Apparatus for zone-wise adjustment in a printing machine inking mechanism
FI75286B (fi) Avskrapningsanordning.
GB2155404A (en) Ink-box for a printing press
US4350095A (en) Ink fountain on inking units of printing presses
US3922966A (en) Ink fountain in printing presses
US3690254A (en) Ink fountain roller device for a printing press
GB2058671A (en) Inking apparatus for printing machines
JPS5995146A (ja) インキのゾ−ン別規制供給装置
DE3141990A1 (de) Farbkasten fuer eine druckpresse
ES8100155A1 (es) Un aparato cortador de resina
US3000300A (en) Electrically controlled ink agitator
GB2095179A (en) Ink fountain devices for printing press
GB2156276A (en) Ink discharge regulation blades
US3771447A (en) Ink fountain construction
CH641091A5 (en) Damping unit