EP0023628B1 - Device for reciprocating an inking roller axially - Google Patents

Device for reciprocating an inking roller axially Download PDF

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Publication number
EP0023628B1
EP0023628B1 EP80104137A EP80104137A EP0023628B1 EP 0023628 B1 EP0023628 B1 EP 0023628B1 EP 80104137 A EP80104137 A EP 80104137A EP 80104137 A EP80104137 A EP 80104137A EP 0023628 B1 EP0023628 B1 EP 0023628B1
Authority
EP
European Patent Office
Prior art keywords
roller
bush
groove
printing
shaft
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
EP80104137A
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German (de)
French (fr)
Other versions
EP0023628A1 (en
Inventor
Hermann Beisel
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6077309&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0023628(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT80104137T priority Critical patent/ATE3519T1/en
Publication of EP0023628A1 publication Critical patent/EP0023628A1/en
Application granted granted Critical
Publication of EP0023628B1 publication Critical patent/EP0023628B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/38—Means for axially reciprocating inking 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
    • Y10T74/18296—Cam and slide
    • Y10T74/18304—Axial cam
    • Y10T74/18312—Grooved

Definitions

  • the invention relates to a device for axially reciprocating an inking roller according to the preamble of claim 1.
  • a known device of this type (US Pat. No. 3,452,673) uses a pair of ball bearings mounted radially within the roller for rolling the inking unit rollers back and forth, which rolls on a cam part, the ball bearings being mounted on a bushing, which in turn is on the axis of the Roller is rotatably mounted.
  • the bushing is driven by a large number of spur and bevel gears with a corresponding reduction, which are also mounted within the roller.
  • the disadvantage of the known device is that a complex and thus expensive construction is shown, which is prone to failure due to its complicated structure.
  • due to the many tooth meshes and the tooth play present here a soft and back-free reversal of the direction of movement of the roller cannot be achieved.
  • the object of the invention is to achieve a large reduction between the back and forth movement and the rotary movement of the roller in a device for axially back and forth of an inking roller with simple means and a smooth and back-free reversing movement of the roller even with a substantially increased stroke receive.
  • the inking roller 1 is arranged in a known manner in the inking unit of a high-pressure or offset printing machine and carries out a back and forth movement for rubbing the ink film sideways.
  • the roller jacket 2 is driven by frictional engagement from the rollers which interact with it.
  • On one side it is mounted on the fixed axis 4 via a roller bearing 3.
  • the inner ring 5 of the roller bearing 3 is fixed on the axis 4 via spring washers 6.
  • the outer ring 7 of the roller bearing 3 is fixed via a spring ring 8 in the roller shell 2 and is made so wide that it allows the maximum stroke of the reciprocating movement of the roller shell 2.
  • the other side of the roll shell 2 is mounted on the fixed axle 4 via two roller bearings 9, 10, a bushing 11 being provided as the inner ring for the two roller bearings, which is fixed on the axle 4 via spring washers 12.
  • a wider bush 13 serves as the outer ring for the roller bearings 9, 10 and is fixed in the roller shell 2 via an inner spring ring 14 in connection with a shoulder 31.
  • a bush 15 running as a cage serves as a guide for the two roller bearings 9, 10.
  • the bush 15 is held laterally by rings 16, which in turn are fixed on the bush 11 by spring washers 17.
  • the bush 15 is mounted on the bush 11 via a needle bearing 18.
  • the first groove 19, which is elliptical in the axial direction, is provided on the bush 15 rotating as a cage and the opposite, second circular groove 20 is provided in the bush 13 fastened in the roll shell 2.
  • the second groove 20 could also have a slight elliptical shape.
  • a ball 21 rolls between the two grooves, which causes a sinusoidal back and forth movement of the roller shell 2.
  • the roller bearings 9, 10 slow it down again, so that the overall reduction for the back and forth movement of the roller shell 2 is approximately 1: 4.
  • the stroke shown for the back and forth movement, which results from the elliptical groove 9, can thus be approximately doubled without impairing the back and forth movement.
  • the exemplary embodiment of the invention shown in FIG. 2 differs in a somewhat different construction of the inventive concept.
  • the roller shell 2 is supported by two roller bearings 22, 23, the inner ring of which consists of a bush 24 fastened on the fixed axis 4 and for which a bush 25 fastened in the roller shell 2 is provided as the outer ring.
  • a circumferential bush 26 is also used here, which is mounted in the bush 25 via two needle bearings 27.
  • the individual bushes 24, 25, 26 are fastened in principle as in the embodiment shown in FIG. 1.
  • a cage circumferential sleeve 26 with a first circular groove 28 and the sleeve 24 fastened on the axis 4 is provided with a second elliptical groove 29, between which a ball 30 rolls.
  • a total reduction of about 1: 4 can be achieved, so that the stroke shown produces the same movement distance for the roll shell 2.
  • the device for axially reciprocating the inking roller disclosed in the drawings is designed so that it can be used for different roller diameters and that the fixed axes of the inking roller thus formed can be stored anywhere in the machine side frames.

Abstract

Device for axially reciprocating a printing-unit roller having a stationary shaft and a roller jacket rotatably driven by friction drive, the device being disposed within the printing-unit roller and being driven by rotational movement of the printing-unit roller, including drive means for effecting axial reciprocation of the printing-unit roller at a speed reduced with respect to the rotational speed of the printing-unit roller including two roller bearings disposed within the printing-unit roller between the roller jacket and the shaft, a first bushing revolving as a cage associated with the roller bearings and being formed with a first groove, a second bushing fixed in the roller jacket and formed with a second groove, one of the grooves being of elliptic form, and a ball being received simultaneously in both of the grooves and being rollable therein.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum axialen Hin- und Herbewegen einer Farbwerkswalze gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for axially reciprocating an inking roller according to the preamble of claim 1.

Eine bekannte Vorrichtung dieser Art (US-PS 3 452 673) verwendet zum Hin- und Herbewegen der Farbwerkswalzen ein innerhalb der Walze radial gelagertes Kugellagerpaar, das an einem Kurventeil abrollt, wobei die Kugellager auf einer Büchse gelagert sind, die wiederum auf der Achse der Walze drehbar gelagert ist. Die Büchse wird bei der bekannten Ausführung über eine Vielzahl von Stirn- und Kegelrädern mit entsprechender Untersetzung angetrieben, die ebenfalls innerhalb der Walze gelagert sind. Der Nachteil der bekannten Vorrichtung ist, daß eine aufwendige und damit teuere Konstruktion wiedergegeben ist, die wegen ihrem komplizierten Aufbau störanfällig ist. Außerdem ist durch die vielen Zahneingriffe und das hier vorhandene Zahnspiel eine weiche und rückfreie Umkehr der Bewegungsrichtung der Walze nicht zu erreichen.A known device of this type (US Pat. No. 3,452,673) uses a pair of ball bearings mounted radially within the roller for rolling the inking unit rollers back and forth, which rolls on a cam part, the ball bearings being mounted on a bushing, which in turn is on the axis of the Roller is rotatably mounted. In the known embodiment, the bushing is driven by a large number of spur and bevel gears with a corresponding reduction, which are also mounted within the roller. The disadvantage of the known device is that a complex and thus expensive construction is shown, which is prone to failure due to its complicated structure. In addition, due to the many tooth meshes and the tooth play present here, a soft and back-free reversal of the direction of movement of the roller cannot be achieved.

Aufgabe der Erfindung ist es, bei einer Vorrichtung zum axialen Hin- und Herbewegen einer Farbwerkswalze mit einfachen Mitteln eine große Untersetzung zwischen der Hin- und Herbewegung und der Drehbewegung der Walze zu erreichen und auch bei wesentlich vergrößertem Hub eine weiche und rückfreie Umkehrbewegung der Walze zu erhalten.The object of the invention is to achieve a large reduction between the back and forth movement and the rotary movement of the roller in a device for axially back and forth of an inking roller with simple means and a smooth and back-free reversing movement of the roller even with a substantially increased stroke receive.

Die Aufgabe wird gemäß dem Kennzeichen des Anspruchs 1 gelöst. Hiermit wird eine Untersetzung von etwa 1 : 4 erreicht, ohne daß ein großer technischer Aufwand erforderlich ist. Selbst bei einer Vergrößerung des Hubes kommt es zu keiner schlagartigen Umkehrbewegung der Farbwerkswalze.The object is achieved according to the characterizing part of claim 1. A reduction of about 1: 4 is hereby achieved without a great technical outlay being necessary. Even if the stroke is increased, there is no sudden reversal of the inking roller.

Zwei vorteilhafte Ausgestaltungen der Erfindung sind durch die Kennzeichen der Ansprüche 2 und 3 wiedergegeben.Two advantageous embodiments of the invention are represented by the characteristics of claims 2 and 3.

Zwei Ausführungsbeispiele der Erfindung sind in den Zeichnungen schematisch dargestellt. Es zeigt

  • Fig. 1 einen Längsschnitt durch eine Farbwerkswalze mit sinusförmiger Nut auf der umlaufenden Büchse,
  • Fig. 2 einen Längsschnitt durch eine Farbwerkswalze mit kreisförmiger Nut in der umlaufenden Büchse.
Two embodiments of the invention are shown schematically in the drawings. It shows
  • 1 shows a longitudinal section through an inking roller with a sinusoidal groove on the rotating sleeve,
  • Fig. 2 shows a longitudinal section through an inking roller with a circular groove in the rotating sleeve.

Die Farbwerkswalze 1 ist in bekannter Weise im Farbwerk einer Hochdruck- oder Offsetdruckmaschine angeordnet und führt zum seitlichen Verreiben des Farbfilms eine Hin- und Herbewegung aus. In den gezeigten Ausführungsbeispielen ist der Walzenmantel 2 durch Reibschluß von den mit ihm zusammenwirkenden Walzen angetrieben. Auf einer Seite ist er über ein Rollenlager 3 auf der feststehenden Achse 4 gelagert. Der Innenring 5 des Rollenlagers 3 ist über Federringe 6 auf der Achse 4 festgelegt. Der Außenring 7 des Rollenlagers 3 ist über einen Federring 8 im Walzenmantel 2 festgelegt und ist so breit ausgeführt, daß er den maximalen Hub der Hin- und Herbewegung des Walzenmantels 2 zuläßt.The inking roller 1 is arranged in a known manner in the inking unit of a high-pressure or offset printing machine and carries out a back and forth movement for rubbing the ink film sideways. In the exemplary embodiments shown, the roller jacket 2 is driven by frictional engagement from the rollers which interact with it. On one side it is mounted on the fixed axis 4 via a roller bearing 3. The inner ring 5 of the roller bearing 3 is fixed on the axis 4 via spring washers 6. The outer ring 7 of the roller bearing 3 is fixed via a spring ring 8 in the roller shell 2 and is made so wide that it allows the maximum stroke of the reciprocating movement of the roller shell 2.

Gemäß Figur 1 ist die andere Seite des Walzenmantels 2 über zwei Rollenlager 9, 10 auf der feststehenden Achse 4 gelagert, wobei als Innenring für die beiden Rollenlager eine Büchse 11 vorgesehen ist, die über Federringe 12 auf der Achse 4 festgelegt ist. Als Außenring für die Rollenlager 9, 10 dient eine breitere Büchse 13, die über einen Innenfederring 14, in Verbindung mit einer Schulter 31 im Walzenmantel 2 festgelegt ist. Als Führung für die beiden Rollenlager 9,10 dient eine als Käfig umlaufende Büchse 15. Die Büchse 15 ist seitlich von Ringen 16 gehalten, die wiederum von Federringen 17 auf der Büchse 11 fixiert sind. Die Büchse 15 ist über ein Nadellager 18 auf der Büchse 11 gelagert.According to FIG. 1, the other side of the roll shell 2 is mounted on the fixed axle 4 via two roller bearings 9, 10, a bushing 11 being provided as the inner ring for the two roller bearings, which is fixed on the axle 4 via spring washers 12. A wider bush 13 serves as the outer ring for the roller bearings 9, 10 and is fixed in the roller shell 2 via an inner spring ring 14 in connection with a shoulder 31. A bush 15 running as a cage serves as a guide for the two roller bearings 9, 10. The bush 15 is held laterally by rings 16, which in turn are fixed on the bush 11 by spring washers 17. The bush 15 is mounted on the bush 11 via a needle bearing 18.

Im gezeigten Ausführungsbeispiel ist die erste in axialer Richtung ellipsenförmig ausgebildete Nut 19 auf der als Käfig umlaufenden Büchse 15 vorgesehen und die gegenüberliegende zweite kreisförmig ausgebildete Nut 20 in der im Walzenmantel 2 befestigten Büchse 13 vorgesehen. Für besondere Fälle könnte auch die zweite Nut 20 eine leichte Ellipsenform aufweisen. Zwischen beiden Nuten rollt eine Kugel 21 ab, die hierbei eine sinusförmige Hin- und Herbewegung des Walzenmantels 2 bewirkt. Durch das Abrollen der Kugel 21 entsteht zwischen den Büchsen 13 und 15 bereits eine Untersetzung. Nachdem sich die Büchse 15 in gleicher Drehrichtung wie der Walzenmantel 2 dreht, entsteht für diese durch das Abrollen der Rollenlager 9, 10 noch einmal eine Verlangsamung, so daß die Gesamtuntersetzung für die Hin- und Herbewegung des Walzenmantels 2 etwa 1 :4 beträgt. Der eingezeichnete Hub für die Hin- und Herbewegung, der sich aus der ellipsenförmig ausgebildeten Nut 9 ergibt, kann somit ohne Beeinträchtigung der Hin- und Herbewegung etwa verdoppelt werden.In the exemplary embodiment shown, the first groove 19, which is elliptical in the axial direction, is provided on the bush 15 rotating as a cage and the opposite, second circular groove 20 is provided in the bush 13 fastened in the roll shell 2. For special cases, the second groove 20 could also have a slight elliptical shape. A ball 21 rolls between the two grooves, which causes a sinusoidal back and forth movement of the roller shell 2. By rolling the ball 21 there is already a reduction between the bushes 13 and 15. After the bushing 15 rotates in the same direction of rotation as the roller shell 2, the roller bearings 9, 10 slow it down again, so that the overall reduction for the back and forth movement of the roller shell 2 is approximately 1: 4. The stroke shown for the back and forth movement, which results from the elliptical groove 9, can thus be approximately doubled without impairing the back and forth movement.

Das in Figur 2 gezeigte Ausführungsbeispiel der Erfindung unterscheidet sich durch eine etwas anders geartete konstruktive Ausführung des Erfindungsgedankens. Auch hier ist der Walzenmantel 2 über zwei Rollenlager 22, 23 gelagert, deren Innenring aus einer auf der feststehenden Achse 4 befestigten Büchse 24 besteht und für die als Außenring eine im Walzenmantel 2 befestigte Büchse 25 vorgesehen ist. Als Käfig für die beiden Rollenlager 22, 23 wird auch hier eine umlaufende Büchse 26 verwendet, die über zwei Nadellager 27 in der Büchse 25 gelagert ist. Die Befestigung der einzelnen Büchsen 24, 25, 26 erfolgt im Prinzip wie in der in Figur 1 gezeigten Ausführung.The exemplary embodiment of the invention shown in FIG. 2 differs in a somewhat different construction of the inventive concept. Here, too, the roller shell 2 is supported by two roller bearings 22, 23, the inner ring of which consists of a bush 24 fastened on the fixed axis 4 and for which a bush 25 fastened in the roller shell 2 is provided as the outer ring. As a cage for the two roller bearings 22, 23, a circumferential bush 26 is also used here, which is mounted in the bush 25 via two needle bearings 27. The individual bushes 24, 25, 26 are fastened in principle as in the embodiment shown in FIG. 1.

Im Gegensatz zu der in Figur 1 gezeigten Vorrichtung für die seitliche Hin- und Herbewegung des Walzenmantels 2 ist die als Käfig umlaufende Büchse 26 mit einer ersten kreisförmigen Nut 28 und die auf der Achse 4 befestigte Büchse 24 mit einer zweiten ellipsenförmigen Nut 29 versehen, zwischen denen eine Kugel 30 abrollt. Auch bei dieser Ausführung kann eine Gesamtuntersetzung von etwa 1 :4 erreicht werden, so daß der eingezeichnete Hub die gleiche Bewegungsstrecke für den Walzenmantel 2 erzeugt.In contrast to the device for the lateral back and forth movement of the roll shell 2 shown in FIG. 1, it is a cage circumferential sleeve 26 with a first circular groove 28 and the sleeve 24 fastened on the axis 4 is provided with a second elliptical groove 29, between which a ball 30 rolls. In this embodiment, too, a total reduction of about 1: 4 can be achieved, so that the stroke shown produces the same movement distance for the roll shell 2.

Die in den Zeichnungen offenbarte Vorrichtung zum axialen Hin- und Herbewegen der Farbwerkswalze ist so ausgebildet, daß sie für verschiedene Walzendurchmesser Verwendung finden kann und daß die feststehenden Achsen der so ausgebildeten Farbwerkswalzen an beliebigen Stellen in den Maschinenseitengestellen gelagert werden können.The device for axially reciprocating the inking roller disclosed in the drawings is designed so that it can be used for different roller diameters and that the fixed axes of the inking roller thus formed can be stored anywhere in the machine side frames.

Claims (3)

1. A device for reciprocating an inking roller axially, said roller having a fixed shaft and an outer roller casing driven by friction and able to be reciprocated in relation to the shaft, the device being placed within the inking roller and being driven by the turning motion of the inking roller, the driving effect for the reciprocating motion being stepped down in relation to the turning motion of the inking roller, characterized in that the outer casing (2) is supported on the shaft (4) at one end by way of two roller bearings (9, 10; 22, 24), that are placed with an axial spacing from each other within the outer roller casing (2) concentrically in relation to the shaft (4), in that between the roller bearings (9, 10; 22, 23) there is a bush (15; 26), designed in the form of a cage and able to be freely turned with the roller bearings, the bush having a first groove (19; 28) for taking up a ball (21; 30), and in that the ball (21; 30) is placed for rolling motion between the groove and a second groove (20; 29) in a bush (13; 24) fixed in the outer roller casing, one of the grooves being designed with an elliptical form.
2. A device as claimed in claim 1 characterized in that the first groove (19), designed with an elliptical form, is placed on the turning bush (15) acting as a cage and the opposite, round groove (20) is in a bush (13) that is fixed in the casing (2) of the roller (Figure 1).
3. A device as claimed in claim 1, characterized in that the turning bush (26), designed in the form of a cage, has a first round groove (28) and the second elliptical groove (29) is placed in a bush (24), that is fixed to the shaft (4) (Figure 2).
EP80104137A 1979-08-01 1980-07-16 Device for reciprocating an inking roller axially Expired EP0023628B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104137T ATE3519T1 (en) 1979-08-01 1980-07-16 DEVICE FOR AXIAL RECIPROCATION OF AN INK ROLLER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2931141 1979-08-01
DE2931141A DE2931141C3 (en) 1979-08-01 1979-08-01 Device for moving a distribution roller axially backwards

Publications (2)

Publication Number Publication Date
EP0023628A1 EP0023628A1 (en) 1981-02-11
EP0023628B1 true EP0023628B1 (en) 1983-05-25

Family

ID=6077309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104137A Expired EP0023628B1 (en) 1979-08-01 1980-07-16 Device for reciprocating an inking roller axially

Country Status (7)

Country Link
US (1) US4337699A (en)
EP (1) EP0023628B1 (en)
JP (1) JPS588994B2 (en)
AT (1) ATE3519T1 (en)
DE (2) DE2931141C3 (en)
ES (1) ES8104075A1 (en)
IT (1) IT1132237B (en)

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ITRM20030447A1 (en) * 2003-09-30 2005-04-01 Danieli Off Mecc ROLLER SUPPORT DEVICE.
KR100711444B1 (en) * 2005-12-23 2007-04-24 주식회사 포스코 Bearing device for zinc pot roll in continuous galvanizing line
JP2007309508A (en) * 2006-04-20 2007-11-29 Kinyosha Co Ltd Swing roller, rolling bearing and roller swinging method
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Also Published As

Publication number Publication date
DE2931141C3 (en) 1982-01-28
JPS588994B2 (en) 1983-02-18
EP0023628A1 (en) 1981-02-11
DE3063492D1 (en) 1983-07-07
ATE3519T1 (en) 1983-06-15
ES493826A0 (en) 1981-04-01
DE2931141B2 (en) 1981-05-21
IT1132237B (en) 1986-06-25
DE2931141A1 (en) 1981-02-05
ES8104075A1 (en) 1981-04-01
IT8023666A0 (en) 1980-07-24
JPS5624169A (en) 1981-03-07
US4337699A (en) 1982-07-06

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