EP0006402B1 - Entraînement sans cames pour pinces oscillantes - Google Patents

Entraînement sans cames pour pinces oscillantes Download PDF

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Publication number
EP0006402B1
EP0006402B1 EP78100234A EP78100234A EP0006402B1 EP 0006402 B1 EP0006402 B1 EP 0006402B1 EP 78100234 A EP78100234 A EP 78100234A EP 78100234 A EP78100234 A EP 78100234A EP 0006402 B1 EP0006402 B1 EP 0006402B1
Authority
EP
European Patent Office
Prior art keywords
driving
gripper
turning
lever
crank
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
EP78100234A
Other languages
German (de)
English (en)
Other versions
EP0006402A1 (fr
Inventor
Norbert Dr. Thünker
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=8185898&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0006402(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 DE7878100234T priority Critical patent/DE2861397D1/de
Priority to EP78100234A priority patent/EP0006402B1/fr
Priority to US06/052,257 priority patent/US4295422A/en
Publication of EP0006402A1 publication Critical patent/EP0006402A1/fr
Application granted granted Critical
Publication of EP0006402B1 publication Critical patent/EP0006402B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/10—Reciprocating or oscillating grippers, e.g. suction or gripper tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B41F21/05—In-feed grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/14—Details of grippers; Actuating-mechanisms therefor

Definitions

  • the invention relates to a drive free of cam drives of a vibrating pre-gripper for sheet-fed rotary printing machines, the drive elements of which are connected exclusively by rotary joints.
  • German utility model 71 31 281 describes a vibrating pre-gripper that is free of cams and driven by a crank rocker.
  • this device requires an extremely wide channel of approximately 200 ° in the printing cylinder, which in turn increases the length the maximum format to be processed is severely restricted. That being said, this pre-gripper device has poor transmission conditions due to a small transmission angle.
  • a printing press with the type designation "Roland Favorit” from the printing press factory Faber & Schleicher, Offenbach is equipped with a cam-controlled lifting rocker, which performs a lifting movement while swinging back into the sheet take-over position, but the drive is also very costly via a cam control, which procedurally harbors the difficulties already mentioned.
  • strong springs must also be provided in order to prevent the roller from lifting off the curve member and thus to ensure a perfect force fit.
  • the production of the cams used here is extremely complex and expensive.
  • the object of the invention is to develop a vibrating pre-gripper for a short cylinder channel to exhaust a large format range, which is driven free of cam drives on the one hand and thus excludes the disadvantages of the relatively expensive cam drives described and on the other hand the swinging back into its bow transfer position in one the web lying further away from the impression cylinder surface, which among other things high machine speeds are to be achieved.
  • good transmission ratios i.e. Pay attention to the transmission angle on the drive links and the required space is kept to a minimum.
  • the drive is designed as an eight-link coupling gear, a rotating drive crank being arranged on a first fixed axis, which drives a double-armed coupling via a coupling member, which un at the junction of their two arms un a second stationary Axis is pivotally mounted so that the output side of said double-armed coupler drives a further double-armed coupler via an interposed coupler, which, with its articulation point at the junction of their two arms, is guided concentrically around a third stationary axis by means of a further rotating drive crank and on it free arm carries the pre-gripper, and that the first drive crank, which controls the pivotal movement of the pre-gripper, and the second drive crank, which controls the lifting movement, both stand at the same angular velocity about their different axes of rotation rotate continuously.
  • the channel of the printing cylinder can be kept extremely short and the circumferential surface available for the sheet support can be increased accordingly, so that larger formats can be processed with the same printing cylinder knife is made possible.
  • high machine speeds can be driven due to favorable transmission ratios.
  • two intermeshing gears are provided, the axes of rotation of which are identical to the first and third fixed axes and of which the gear assigned to the first fixed axis is coaxial with the pressure cylinder and forms the drive gear, the articulation point of the coupling member in one the length of the drive crank corresponding radial distance from the gear axis of rotation on this gear and the pivot point of the double-armed coupling is provided in a corresponding manner on the second gear.
  • a first gear 3 is rotatably mounted in the machine frame 1 on the axis 2 centrally to the axis of the printing cylinder and fixed to the axis 2.
  • This gear 3 can be identical to the drive wheel of the printing cylinder.
  • a coupling member 5 is articulated in the gearwheel 3 in the articulation point 4, which coupling member is a link to a coupling 7 mounted on the axis 8 via an articulation point 6.
  • the coupling 7 mounted on the axis 8 is designed as a double-armed pivot lever.
  • the crank arm 2, 4, 6 is driven by the articulation point 4, which runs through a circular path 9 when the gear 3 rotates, the radius of which is the drive crank 10 for the pivoting movement of the pre-gripper 16.
  • a coupling 12 is articulated in the articulation point 11 and transmits the pivoting movement of the coupling 7 to a pre-gripper lever 14 via an articulation point 13.
  • a coupling, the pre-gripper carrier 15, is firmly connected to the pre-gripper lever 14.
  • the pre-grippers 16 are arranged at the free end of the pre-gripper carrier 15.
  • the pre-gripper carrier 15 is rotatably mounted eccentrically in the articulation point 30 of a second gear 17.
  • the gear 17 mounted on the axle 18 is in engagement with the first gear 3 and rotates at the same angular velocity as this.
  • the radius of the circular path 24 is used as the drive crank 25 for the lifting movement of the pre-gripper 16.
  • the pre-gripper carrier 15 continues to oscillate until the gripper support of the pre-gripper 16 has reached the reversal point 26.
  • the cam track 29 passing through the sequence of movements of the gripper support of the pre-gripper 16 during one revolution of the printing cylinder or the pre-gripper drum is shown in dashed lines.
  • the dimension of the largest lift 27 of the gripper support from the sheet feed path 28 corresponds to the diameter of the circular path 24, which the articulation point 30 describes during one revolution of the second gear 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (2)

1. Entraînement sans came d'un balancier (16) de machine d'impression rotative de feuilles, dont les éléments de commande sont reliés uniquement par des articulations, et caractérisé en ce que l'entraînement est réalisé sous forme d'une transmission d'accouplement à huit éléments (2, 4, 6, 8, 11, 13, 18, 30), un premier axe stationnaire (2) portant une manivelle rotative de commande (10), qui, par l'intermédiaire d'un élément d'accouplement (5), entraîne une bielle à deux bras (7), dont le point de jonction des deux bras est monté en pivotement sur un second axe stationnaire (8) ; le côté mené de ladite bielle à deux bras (7) entraîne, par l'intermédiaire d'une bielle (12) interposée, une seconde bielle à deux bras (14,15), dont une seconde manivelle rotative de commande (25) fait tourner concentriquement le point d'articulation (30), situé au point de jonction des deux bras, autour d'un troisième axe stationnaire (18), et dont le bras libre (15) porte le balancier (16) ; et la première manivelle de commande (10), qui commande le mouvement de pivotement du balancier (16), et la seconde manivelle de commande (25), qui commande le mouvement de relevage, tournent constamment et à la même vitesse angulaire autour de leurs différents axes de rotation.
2. Entraînement sans came selon la revendication 1, caractérisé en ce que pour former les deux manivelles rotatives de commande (10, 25), deux roues dentées engrénantes (3, 17) sont prévues, dont les axes de rotation sont identiques au premier et au troisième axes stationnaires (2, 18), et dont la roue dentée (3) affectée au premier axe stationnaire (2) est coaxiale avec le cylindre d'impression et constitue sa roue motrice, le point d'articulation (4) de l'élément d'accouplement (5) étant prévu sur la roue dentée (3), à une distance radiale de l'axe de ladite roue égale à la longueur de la manivelle de commande (10), et le point d'articulation (30) de la bielle à deux bras (14,15) de la même façon sur la roue dentée (17).
EP78100234A 1978-06-26 1978-06-26 Entraînement sans cames pour pinces oscillantes Expired EP0006402B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE7878100234T DE2861397D1 (en) 1978-06-26 1978-06-26 Camless drive for an oscillating front gripper
EP78100234A EP0006402B1 (fr) 1978-06-26 1978-06-26 Entraînement sans cames pour pinces oscillantes
US06/052,257 US4295422A (en) 1978-06-26 1979-06-26 Camless drive of a swinging pre-gripper feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP78100234A EP0006402B1 (fr) 1978-06-26 1978-06-26 Entraînement sans cames pour pinces oscillantes

Publications (2)

Publication Number Publication Date
EP0006402A1 EP0006402A1 (fr) 1980-01-09
EP0006402B1 true EP0006402B1 (fr) 1981-12-02

Family

ID=8185898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100234A Expired EP0006402B1 (fr) 1978-06-26 1978-06-26 Entraînement sans cames pour pinces oscillantes

Country Status (3)

Country Link
US (1) US4295422A (fr)
EP (1) EP0006402B1 (fr)
DE (1) DE2861397D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008366A1 (de) * 2006-02-23 2007-08-30 Koenig & Bauer Aktiengesellschaft Vorrichtung zum Antreiben einer Schwinganlage

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4591442A (en) * 1984-11-26 1986-05-27 Nelson Research & Development Co. Flash chromatography
DE3621384A1 (de) * 1986-06-26 1988-01-14 Roland Man Druckmasch Vorrichtung zum antrieb eines schwingenden vorgreifers einer druckmaschine
DE3621385A1 (de) * 1986-06-26 1988-01-14 Roland Man Druckmasch Vorrichtung zum antrieb eines schwingenden vorgreifers einer druckmaschine
DE3628907A1 (de) * 1986-08-26 1988-03-10 Koenig & Bauer Ag Bogenwendevorrichtung in einer bogenrotationsdruckmaschine
DE4230218C2 (de) * 1992-09-10 1999-06-10 Heidelberger Druckmasch Ag Vorgreifer einer Bogendruckmaschine
DE4233846A1 (de) * 1992-10-08 1994-04-14 Heidelberger Druckmasch Ag Vorgreifer einer Bogendruckmaschine
DE19831976B4 (de) * 1998-07-16 2010-07-29 Heidelberger Druckmaschinen Ag Vorrichtung zum Zuführen von Bogen zu einer Bogen verarbeitenden Maschine
DE19833903A1 (de) * 1998-07-28 2000-02-03 Heidelberger Druckmasch Ag Verfahren zur Übernahme einer Bogenhinterkante von einem vorgeordneten Zylinder einer Bogenrotationsdruckmaschine
DE102005058804A1 (de) * 2005-12-09 2007-06-14 Man Roland Druckmaschinen Ag Getriebeanordnung für Greifer an einer bogenverarbeitenden Maschine
CN109626044B (zh) * 2018-11-16 2020-04-10 福州大学 一种单张纸印刷机递纸吸嘴运动轨迹优化设计方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7131281U (de) * 1971-11-04 Veb Polygraph Leipzig Kombinat Fuer Polygraphische Masch Vorgreiferantrieb
DE687856C (de) * 1938-10-14 1940-02-07 Rotaprint Akt Ges d Vervielfaeltigungsmaschinen
DE1113699B (de) * 1960-09-09 1961-09-14 Maschf Augsburg Nuernberg Ag Vorgreiferantrieb fuer Bogendruckmaschinen
DE2136867C3 (de) * 1971-07-23 1979-11-22 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bogenanlegevorrichtung mit Zuführgreifern
DE2557866B2 (de) * 1975-12-22 1977-11-03 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Rotierende vorgreifertrommel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008366A1 (de) * 2006-02-23 2007-08-30 Koenig & Bauer Aktiengesellschaft Vorrichtung zum Antreiben einer Schwinganlage

Also Published As

Publication number Publication date
EP0006402A1 (fr) 1980-01-09
US4295422A (en) 1981-10-20
DE2861397D1 (en) 1982-01-28

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