US3246601A - Adjusting device for printing press ductor rolls - Google Patents

Adjusting device for printing press ductor rolls Download PDF

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Publication number
US3246601A
US3246601A US391869A US39186964A US3246601A US 3246601 A US3246601 A US 3246601A US 391869 A US391869 A US 391869A US 39186964 A US39186964 A US 39186964A US 3246601 A US3246601 A US 3246601A
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US
United States
Prior art keywords
roll
travel
reciprocating movement
mounting
vibrating
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
US391869A
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English (en)
Inventor
Fischer Hermann
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg 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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
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Publication of US3246601A publication Critical patent/US3246601A/en
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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
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/40—Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor
    • 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
    • B41F31/14—Applications of messenger or other moving transfer rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18288—Cam and lever
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18856—Oscillating to oscillating

Definitions

  • This invention relates to adjusting and controlling the travel or throw of lifting or vibrating rolls (such as inking or moistening rolls in printing presses and the like) moving or oscillating between two other associated rolls in the press and, more particularly, to devices and constructions for adjusting such movement while the press is in operation by means of stationary parts which are independent of oscillating or vibrating or lifting movement of the roll being adjusted.
  • lifting or vibrating rolls such as inking or moistening rolls in printing presses and the like
  • printing presses and the like machinery may include a rotating roll member which is continuously or repeatedly lifted or moved into and out of mating contact with the surface of another rotating roll and/or back and forth between mating engagements with the surfaces of two opposed rolls-as, for example, for intermittently transferring a film of ink or aqueous vintain liquid from the surface of one roll to another.
  • a rotating roll member which is continuously or repeatedly lifted or moved into and out of mating contact with the surface of another rotating roll and/or back and forth between mating engagements with the surfaces of two opposed rolls-as, for example, for intermittently transferring a film of ink or aqueous vintain liquid from the surface of one roll to another.
  • adjustment of the travel of the lifting roll may be desired with respect to the distributing roll in order satisfactorily to meter or apply thereto the desired quantity or film thickness of the ink or other fluid being transferred.
  • FIG. 1 is a somewhat diagrammatic view of a structure embodying and for practicing this invention applied to a lifting or vibrating moistening roll of a printing press;
  • FIG. 2 is a more detailed fragmentary view, partly in section, along the line II-II of FIG. 1;
  • FIG. 3 is a view, partly in section, along the line III-III of FIG. 2.
  • FIG. 1 a construction embodying and for practicing this invention is indicated in FIG. 1 as applied to the oscillating or lifting moistening apparatus of a printing press. That is, a liquid supply roll 10 rotates in a liquid reservoir 11 to provide, in known manner, a film of liquid from reservoir 11 around the surface of roll 10. Space; above supply roll 10 is a distributing roll 12 to the surface of which it is desired to transfer a metered quantity of liquid film from supply roll 10 by means of rotating lifting or vibrating roll 15, which moves vertically back and forth between supply roll 1t and distributing roll 12 to pick up a film of liquid from supply roll 10 and transfer such fiim (or a metered quantity thereof) to the surface of distributing roll 12.
  • lever 17 is actually L-shaped with a depending portion 20.
  • a driven cam 50 rotates and effects movement of a cam follower 51 which rotates lever 21 back and forth around pivot 22 mounted on supporting arm 23.
  • a bolt or rod 24 is slidably engaged with both levers 20 and 21, and carries thereon a spring 19. In this manner, when lever 21 is moved to the right in the drawing by the action of cam 50, spring 19 will resiliently force lever 20 to the right, hence raising vibrating roll 15 through hell crank lever 17, whereas the reverse action occurs whenever the extended eccentric portion of cam 50 permits the relaxation of cam follower 51.
  • cam follower 51 Since the motion of cam 50 and the dimensions of the eccentric portion thereof are constant, the oscillating movement of cam follower 51 will always have the same extent or throw, although it is desired to limit both the upward and downward distance or throw of vibrating roll 15.
  • the foregoing is achieved by transmitting the lifting force through spring 19 resiliently so as to be able to limit both the upward and downward extents of movement of roll 15 to the desired relationship with rolls and 12 notwithstanding the constant oscillating extent of cam follower 51 and lever 21.
  • FIGS. 1 and 2 depicts the mounting and other arrangements at but one end of roll 15 at one side of the printing press and a similar structure is to be understood as provided at the opposite side of the press for supporting and operating the opposite end of roll 15.
  • a stop mounting block 25 affixed to a stationary portion 26 of the machine or the frame thereof, and including a cavity or indentation 27 within which moves a stub shaft 30 affixed to the end of lever 17 and preferably substantially coaxial with roll 15.
  • Two stop members 31 and 32 are arranged for sliding movement within block 25 and, preferably, at an angle "with espect to each other as indicated in, for example, 3. That is, stop members 31 and 32 are slidably carried, respectively, in channels 33 and 34, of block 25, and may be adjustably moved therealong by the opera tion of threaded bolts 35 and 36 upon turning or adjustment of knobs 37 and 38, respectively, with, preferably, the provision of locking nuts 39 and 40 for maintaining bolts and 36 in any particular axial position in which they are set.
  • Stop members 31 and 32 are provided, at the ends thereof opposite to threaded bolts 35 and 36, with beveled abut ment faces and 46, positioned so as to limit the upward and downward movement of stub shaft 30 and, consequently, roll 15, with the corresponding surfaces of stub aha. being preferably provided with flattened portions, shown, to contact beveled surfaces 45 and 46 of stop members 31 and 32 as stub shaft 30 oscillates therebetween.
  • the beveled surfaces 45 and 46 of slidable and adjustable stop members 31 and 32 and the angular disposition thereof in block 25 all cooperate with stub shaft 30 in a manner such that the upper and/or lower limits of travel of stub shaft 30 are readily and continuously adjustable merely by extending or retracting stop members 31 and 32, and adjusting the position of surfaces 45 and 46 thereof, with respect to block 25 under the action of adjusting knobs 37 and 38.
  • either the upper or the lower limit of movement of stub shaft 30 is continuously adjustable during continued movement of the shaft, and without stopping the printing press, to achieve the desired positioning or adjustment or change in adjustment of the surface of roll 15 with respect to the surface of either supply roll 10 or distributing roll 12.
  • lever 17 is preferably provided with an offset boss 47 for mounting and supporting a bearing 48 carrying the end of roll 15, with boss 47 readily openable (in known manner) for removal or replacement of roll 15 without altering or interfering with the adjustable stop device arrangements in accordance herewith.
  • this invention an arrangement adjusting the travel and limits of travel of a reciprocating and vibrating roll in apparatus of the character described, and of so adjusting the travel during actual operation of the reciprocating movement of the roll yet with the adjusting and stop mechanism being stationary and mounted on a readily accessible stationary portion of the device.
  • the machine for example a printing press
  • the entire roll itself may be removed from its bushings without interference with the adjustable arrangement in accordance herewith.
  • An arrangement of the character described in printing presses and the like for adjusting and controlling the travel of a vibrating roll having intermittent reciprocating movement with respect to another roll which comprises in combination mounting and drive means for effecting said reciprocating movement, resilient means for cushioning said mounting and drive means, a stationary stop member at each end of the line of travel of said reciprocating movement for limiting said reciprocating movement in each direction thereof, means for mounting said stop members independently of said mounting and drive means and of said reciprocating movement, means for independently and selectively adjusting the positioning of each of said stop members for separately limiting said travel of said reciprocating movement in each direction thereof, and a stop-engaging stud at the axis of said vibrating roll and adjacent said stop members for engaging sequentially each of said stop members to limit said travel of said roll.
  • An arrangement of the character described in printing presses and the like for adjusting and controlling the travel of a vibrating roll having intermittent reciprocating movement with respect to another roll which comprises in combination mounting and drive means for effecting said reciprocating movement, a stationary stop member at each end of the line of travel of said reciprocating movement for limiting said reciprocating movement, means for mounting said stop members independently of said mounting and drive means and of said reciprocating movements, resilient means between said drive means and said vibrating roll for cushioning the limiting effect of said stop members, means for adjusting the positioning of said stop members with respect to said travel of said movement, said adjusting means including a threaded bolt mounted at an angle to said reciprocating movement and a beveled surface on each of said step members cooperating with said angularly disposed bolt whereby axial movement of said bolt extends and retracts said beveled surface along said line of travel, and a stop-engaging stud mounted at the axis of said vibrating roll and adjacent each of said stop members for engagement therewith to limit said travel of said roll.
  • An arrangement of the character described in printing presses and the like for adjusting and controlling the travel of a vibrating roll having intermittent reciprocating movement toward and away from another roll which comprises in combination mounting and drive means for effecting reciprocating movement, a stop member for each end of the line of travel of said reciprocating movement for limiting said travel of said reciprocating movement, resilient means between said drive means and said vibrating roll for cushioning the movement limiting effect of said stop members, means for mounting said stop member independently of said mounting and drive means and on a stationary part of said printing press, means for adjusting the positioning of said stop member for limiting said travel of said reciprocating movement, a stopengaging stud mounted at the axis of said vibrating roll and adjacent said stop member for engagement therewith to limit said travel of said roll, and releasable means for disengaging said roll from said mounting and drive means therefor separately from and independently of said stop-engaging stud.
  • An arrangement of the character described in printing presses and the like for adjusting and controlling the travel of the axis of a vibrating roll having intermittent reciprocating movement toward and away from the axis of another roll which comprises in combination mounting and drive means for effecting said reciprocating movement, a stop member for each end of the travel of said reciprocating movement for limiting said travel in each direction thereof, resilient means between said drive means and said vibrating roll for cushioning the movement limiting effect of said stop member, means for mounting said stop members independently of said mounting and drive means and on a stationary part of said printing press, means for independently and selectively adjusting the positioning of each of said stop members for separately limiting said travel of said reciprocating movement independently in each direction thereof, said adjusting means including a threaded bolt mounted at an angle to the line of travel of said reciprocating movement and a beveled surface on said stop member cooperating with said angularly disposed bolt whereby axial movement of said bolt extends and retracts said beveled surface along said line of travel, a stop-engaging stud at the axis

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
US391869A 1960-08-19 1964-08-25 Adjusting device for printing press ductor rolls Expired - Lifetime US3246601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM46313A DE1121071B (de) 1960-08-19 1960-08-19 Einstellvorrichtung fuer die Heberwalze, insbesondere fuer die Feuchtheberwalze an Druckmaschinen

Publications (1)

Publication Number Publication Date
US3246601A true US3246601A (en) 1966-04-19

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ID=7305553

Family Applications (1)

Application Number Title Priority Date Filing Date
US391869A Expired - Lifetime US3246601A (en) 1960-08-19 1964-08-25 Adjusting device for printing press ductor rolls

Country Status (4)

Country Link
US (1) US3246601A (de)
CH (1) CH385894A (de)
DE (1) DE1121071B (de)
GB (1) GB967280A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424083A (en) * 1965-06-15 1969-01-28 Zephon Ltd Roller supporting means for duplicators
US4760789A (en) * 1986-07-10 1988-08-02 Am International, Inc. Adjustable roller system for printing or duplicating machines
US5456128A (en) * 1989-07-06 1995-10-10 Heidelberger Druckmaschinen Ag Cam oscillating drive in a printing machine with kinetic/potential energy storage means for damping undesired oscillations

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US643941A (en) * 1899-06-15 1900-02-20 Aluminum Plate And Press Company Form-dampening mechanism for printing-presses.
US1183623A (en) * 1914-07-06 1916-05-16 Miehle Printing Press & Mfg Ductor-mounting for printing-presses.
US2622521A (en) * 1942-03-18 1952-12-23 Larsen Carl Ejner Dampening mechanism for offset-printing presses and other printing presses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE434122C (de) * 1924-12-25 1926-09-18 Schwarz Presse Akt Ges Fa Feuchtwerk fuer lithographische Druckmaschinen, insbesondere Rotationsdruckmaschinen
DE1082602B (de) 1952-04-08 1960-06-02 Nebiolo Soc Einstellvorrichtung fuer die Heberwalze in Druckmaschinen
DE1047212B (de) * 1956-10-25 1958-12-24 Maschf Augsburg Nuernberg Ag Greifer fuer Druckmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US643941A (en) * 1899-06-15 1900-02-20 Aluminum Plate And Press Company Form-dampening mechanism for printing-presses.
US1183623A (en) * 1914-07-06 1916-05-16 Miehle Printing Press & Mfg Ductor-mounting for printing-presses.
US2622521A (en) * 1942-03-18 1952-12-23 Larsen Carl Ejner Dampening mechanism for offset-printing presses and other printing presses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424083A (en) * 1965-06-15 1969-01-28 Zephon Ltd Roller supporting means for duplicators
US4760789A (en) * 1986-07-10 1988-08-02 Am International, Inc. Adjustable roller system for printing or duplicating machines
US5456128A (en) * 1989-07-06 1995-10-10 Heidelberger Druckmaschinen Ag Cam oscillating drive in a printing machine with kinetic/potential energy storage means for damping undesired oscillations

Also Published As

Publication number Publication date
GB967280A (en) 1964-08-19
CH385894A (de) 1964-12-31
DE1121071B (de) 1962-01-04

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