EP0586808B1 - Dispositif et méthode pour le transfert de produits imprimés dans une machine à imprimer rotative - Google Patents

Dispositif et méthode pour le transfert de produits imprimés dans une machine à imprimer rotative Download PDF

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Publication number
EP0586808B1
EP0586808B1 EP93110266A EP93110266A EP0586808B1 EP 0586808 B1 EP0586808 B1 EP 0586808B1 EP 93110266 A EP93110266 A EP 93110266A EP 93110266 A EP93110266 A EP 93110266A EP 0586808 B1 EP0586808 B1 EP 0586808B1
Authority
EP
European Patent Office
Prior art keywords
printed products
paper
fan
conducting cylinder
wheel
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
EP93110266A
Other languages
German (de)
English (en)
Other versions
EP0586808A1 (fr
Inventor
Richard E. Breton
Mark A. Wingate
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
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0586808A1 publication Critical patent/EP0586808A1/fr
Application granted granted Critical
Publication of EP0586808B1 publication Critical patent/EP0586808B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
    • B65H29/40—Members rotated about an axis perpendicular to direction of article movement, e.g. star-wheels formed by S-shaped members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4471—Grippers, e.g. moved in paths enclosing an area
    • B65H2301/44714—Grippers, e.g. moved in paths enclosing an area carried by rotating members

Definitions

  • the invention relates to a device and a method for transferring printed products in a rotary printing press.
  • a gripper brake cylinder is used in the two-station folder, which transfers the printed products directly to conveyor belts.
  • High-speed belts which run about 9% above machine speed, are used in the pointless hopper folder and transfer the printed products to a delivery paddle wheel, which then lays them out on conveyor belts.
  • both types of folders are limited in their speed of operation due to the limitations in the delivery system.
  • sheets can often skew when being transmitted by tapes if the speeds of the inner and outer tapes cannot be precisely synchronized.
  • US Pat. No. 1,684,901 relates to a former folder with spring-activated folding rollers, by means of which a product jam occurring at high operating speeds can be eliminated. These folding rollers are attached below a folding cylinder and emboss a fold into the printed products as they pass through. The folded printed products are received in paddle wheel pockets and can then be laid out on a delivery conveyor belt in a scaled form, ie one overlapping the other.
  • DE-A-37 00 930 discloses a method and a device according to the preamble of claims 1 and 10, respectively, for stacking and positioning folded or unfolded blanks made of paper, cellulose, nonwoven or the like.
  • a serrated lock washer is assigned to a delivery cylinder provided with circumferential grooves. The airfoils formed on the serrated washer dip into the circumferential grooves on the delivery cylinder and thus remove the printed product from its outer surface.
  • No. 3,459,421 shows a folder, the upper and lower cylinders of which are assigned a stationary pressure roller provided with a jacket.
  • the folded copies are guided from the outer surface of the product-carrying cylinders into the paddle wheel pockets by means of stationary wipers.
  • a further object of the present invention is to improve the braking and the transfer of the printed products in successive, graded steps without complex guide mechanisms.
  • the transport device attached to the peripheral surface of the paper-guiding cylinder carries and guides the printed products as they enter the paddle wheel pockets.
  • the transport device carries the printed products on one side while the paper-guiding cylinder carries them on the other side.
  • This two-sided support prevents the edges of the printed products from spreading or opening. It also enables the printed products taken from the peripheral surface of the paper-guiding cylinder to completely enter the corresponding paddle-wheel pockets when they slow down.
  • the pressure-exerting device as a result of which the transport device is adjustably positioned on the peripheral surface of the paper-guiding cylinder, has the advantage that the transport device can be adjusted precisely to the thickness of the printed product to be processed.
  • the present invention further provides that the airfoils are provided with airfoil tips which protrude into grooves extending along the peripheral surface of the paper-guiding cylinder. In this way, the distance between the paddle wheel disks and the paper-carrying cylinder can be kept very small.
  • the present invention thus provides that the envelope curves of the bucket wheel disks, ie the imaginary curves formed by the tips of the bucket blades, overlap with the envelope curve formed by the circumference of the respective paper-guiding cylinder. This improves operational reliability during the transfer of print products from the peripheral surface of the paper feed Cylinder considerably and at the same time reduces the installation space occupied by the apparatus.
  • the present invention further provides a delivery system which comprises at least one paddle wheel and delivery conveyor belts associated with a paper-guiding cylinder.
  • a delivery system which comprises at least one paddle wheel and delivery conveyor belts associated with a paper-guiding cylinder. This design has the advantage that certain printed products can be directed onto a further processing path.
  • the present invention provides a conveyor belt system which is equipped with deflectors which can direct the printed products to a plurality of paper-guiding cylinders.
  • This embodiment has the advantage that the printed products are conveyed via a single conveyor belt system into several delivery modules, which can also be arranged one below the other. A reusable delivery of printed products transported in parallel is therefore possible.
  • a conveyor belt system 1 transports printed products 2 to a paper-carrying cylinder 3.
  • a device for gripping the printed products 2 which has a plurality of gripper bridges 4 arranged on the circumference of the paper-carrying cylinder 3, receives the printed products 2.
  • an element controlling the gripping and releasing of the printed products 2 activates the gripper device.
  • the gripper bridges 4 activated by a link arm 5 preferably take up a roller 6 which rotates in a curve 7.
  • Guide brushes 8 arranged on the circumference of the paper-guiding cylinder 3 guide the printed products 2 and prevent them from coming off, especially at high production speeds.
  • a device for transporting the printed products preferably transport rollers 10 mounted on a shaft 16a, transfers the printed products 2 from the paper-guiding cylinder 3 to a paddle wheel 9 with a number of paddle wheel disks 9a attached to a shaft 24, as shown in FIG. 2.
  • a pressure-exerting device with a lever mechanism 11 places the transport rollers 10 on the peripheral surface of the paper-guiding cylinder 3, as shown in FIG. 1.
  • the lever mechanism 11 exerts pressure on the transport rollers 10 in accordance with the thickness of the processed printed products.
  • the lever mechanism 11 can completely turn off the transport rollers 10 from the peripheral surface of the paper-guiding cylinder 3, e.g. B. when clearing a product jam, it should occur.
  • the airfoils 12 of the impeller disks 9a take up the front edges of the printed products 2.
  • the airfoil tips 12a of the airfoil plunge into recesses 3a which extend along the circumferential surface of the paper-guiding cylinder 3, as shown in FIG. 2.
  • the envelope curve 34 of the paddle wheel 9 and the circumference of the paper-guiding cylinder 3 overlap.
  • the front edges of the printed products 2 are held by grippers 4a, and the airfoil tips 12a move into the space between the individual grippers 4a attached to the gripper bridge 4 and thus guide the front edges of the printed products 2.
  • the transport rollers 10 bring about the complete transfer of the printed products 2 into the paddle wheel pockets 13 formed between the adjacent blades 12 in the paddle wheel 9. During this transfer, the transport rollers 10 carry the printed products 2 on one side and the peripheral surface of the paper-carrying cylinder 3 carries them on the other side. This two-sided support prevents the edges of the printed products 2 from spreading or open, and by the pressure exerted by the lever mechanism 11 on the transport rollers 10, the printed products 2 are compressed and the air enclosed therein can escape. The printed products 2 are therefore fully supported for the duration of their transfer.
  • the printed products 2 guided by the airfoils 12 are completely inserted into the airbag pockets 13. This is carried out by the transport rollers 10 during the rotational movement of the respective paper-guiding cylinder 3 and the respective paddle wheel 9.
  • paddle wheel bags 13 can alternately remain empty, e.g. "collect” during the production process. After the printed products 2 have been completely inserted into the paddle wheel pockets 13, they are fed in a scaled form via conveyor belts to further processing units.
  • FIG 2 shows a top view of the preferred embodiment of the present invention.
  • the paper-guiding cylinder 3 is mounted on a shaft 14 which is mounted in side walls 15 and 15a.
  • the paper-guiding cylinder 3 is driven by a pulley 16.
  • the curve 7, in which the roller 6 rotates determines the timing of the opening and closing of the grippers 4a on the gripper bridge 4.
  • the transport rollers 10 are arranged side by side on the shaft 16a below the paper-guiding cylinder 3.
  • the shaft 16a is coupled to a drive shaft 18 by means of a rotationally fixed, flexible coupling 17.
  • the drive shaft 18 is mounted on two bearings 19, 20 in the side wall 15 and is driven by a pulley 21.
  • the lever mechanism 11 regulates the pressure exerted on the transport rollers 10. With the help of the arms 22 and the axis 23, the shaft 16a can be adjusted. The transport rollers 10 rotate between the individual paddle wheel disks 9a. This allows the transport rollers 10 to be adjusted according to the product width.
  • the shaft 24 is driven by a pulley 25, which has a much larger diameter than the pulleys 16 and 21.
  • the lever mechanism 11 comprises an actuating cylinder 26, by means of which the position and the adjustment pressure of the transport rollers 10 can be adjusted, as shown in FIG. 1.
  • Fig. 2 shows how the blade tips 12a of the blades 12 dip into the recesses 3a in the outer surface of the paper-carrying cylinders 3 without touching them. This configuration saves installation space and increases operational reliability when transferring the printed products.
  • the recesses 3a form an air cushion under the printed products 2 gripped by the grippers 4a. This makes it easier to remove the printed products 2 from the surface of the paper-carrying cylinder 3.
  • Figure 3 shows a modification of the preferred embodiment of the present invention.
  • Several delivery modules are arranged one below the other.
  • several different types of printed products 2 can be designed.
  • the printed products 2 are cut and transported through the conveyor belt system 1 to one of three paper-guiding cylinders 27, 28 or 29.
  • the paper-guiding cylinders 27, 28 and 29 can be set to different working methods.
  • the gripper bridges 4 of the uppermost paper-guiding cylinder 27 are set so that they grab every third printed product 2 from the product stream.
  • the underneath arranged paper-guiding cylinders 28 and 29 can be clocked so that every second and third printed product 2 can be removed from the product stream and fed into the downstream paddle wheels 9 and finally placed on delivery belts 33.
  • This modification of the preferred embodiment of the present invention also provides that all printed products 2 can also be diverted to the upper, paper-guiding cylinder 27, which has six gripper bridges. In this case, the lower delivery modules 31, 32 would be decoupled from the drive train.
  • the supply of certain printed products 2 to a specific one of the delivery modules 30, 31 and 32 can be carried out via switches 1A and 1B provided in the conveyor belt system 1. This enables several types of production that meet the production requirements.
  • the paper-guiding cylinders 27, 28 and 29 are assigned transport rollers 10 which support the printed products 2 until they are completely accommodated in the paddle wheel pockets 13.
  • each of the delivery modules 30, 31 and 32 comprises a paper-carrying cylinder 27, 28 and 29, transport rollers 10, paddle wheels 9 and delivery belts 33. If a folder has hitherto been limited to only two types of production, this capacity can easily be increased by one additional delivery module can be expanded. In this case, the conveyor belt system 1 must be extended accordingly and the required number of additional delivery modules installed.
  • FIG. 4 shows an impeller assigned to the paper-guiding cylinder 3.
  • the immersion of the airfoil tips 12a in the recesses 3a which extend along the circumferential surface of the paper-guiding cylinder 3. Due to the contact of the blade tips 12a with the front edges of the printed products 2, these are removed from the surface of the paper-guiding cylinder 3 and guided into the corresponding paddle wheel pockets 13, the printed products 2 being braked.
  • FIGS. 5a, 5b, 5c, 5d and 5e show the different stages of the entry of a printed product 2 into a paddle wheel pocket 13.
  • the one as a folding jaw cylinder in a folder trained paper-guiding cylinder 35 has a plurality of folding flaps 37 on its circumference. These jaws 37 cooperate with movable jaws 36.
  • the movable jaws 36 are controlled by the cam roller mechanisms 5, 6 and 7 already mentioned.
  • the direction of rotation of the paper-guiding cylinder 35 and the associated paddle wheel 9 is opposite to the direction of rotation of the paper-guiding cylinder and the paddle wheel shown in FIGS. 1 to 4.
  • FIG. 5a shows a printed product 2 gripped by the movable folding flap 36 and the folding flap 37 of the paper-guiding cylinder 35.
  • the moment in which the movable folding flap 36 releases the printed product 2 is shown.
  • the airfoil tip 12a moves under the front edge of the printed product 2 and thus introduces the front part of the printed product into the impeller wheel pocket 13.
  • the transfer and support of the printed products 2 is carried out by the transport rollers 10, the pressure exerted on the surface of the paper-guiding cylinder 35 being regulated.
  • the envelope curve 34 overlaps the circumference of the paper-guiding cylinder 35.
  • FIG. 5b and 5c show further stages of the printed product inlet 2 into the bucket wheel pocket 13.
  • FIG. 5c shows the moment when the entry of the printed product 2 into the bucket wheel pocket 13 via transport rollers 10 is completed.
  • Fig. 5d shows the printed product 2 as it moves to the outer edge of the airfoil 12.
  • Fig. 5e shows the printed product 2 just before reaching the bottom of the bucket wheel pocket 13. With the further entry of the printed product 2 into the bucket wheel pocket 13, the distance a becomes smaller and smaller and thus prevents the edges of the printed product 2 from spreading or opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Claims (11)

  1. Dispositif de transfert de produits imprimés dans une machine à imprimer rotative, avec au moins un cylindre guide-papier (3 ; 27, 28, 29 ; 35), qui comporte au moins un élément (4) pour la saisie de produits imprimés (2) reposant dessus et au moins une roue à pales (9) associée au cylindre guide-papier (3 ; 27, 28, 29 ; 35), constituée de plusieurs disques de roue à pales (9a) avec un nombre de pales (12), qui éloigne les produits imprimés (2) directement de la surface périphérique du cylindre guide-papier (3 ; 27, 28, 29 ; 35), des poches (13) de la roue à pales, qui reprennent les produits imprimés (2), étant formées entre les pales (12) adjacentes,
    caractérisé
    en ce qu'un dispositif (10) de transport des produits imprimés (2) comprend un mécanisme (11) exerçant une pression, qui presse le dispositif (10) contre la surface périphérique du cylindre guide-papier (3 ; 27, 28, 29 ; 35).
  2. Dispositif selon la revendication 1,
    caractérisé
    en ce que le dispositif (10) soutient les produits imprimés (2) pendant la durée de leur transfert dans les poches (13) de la roue à pales.
  3. Dispositif selon la revendication 1,
    caractérisé
    en ce que le mécanisme exerçant la pression comprend un mécanisme à levier (11) et un vérin (26).
  4. Dispositif selon la revendication 3,
    caractérisé
    en ce que le dispositif (10) de transport des produits imprimés (2) peut être totalement éloigné de la surface périphérique du cylindre guide-papier (3 ; 27, 28, 29 ; 35), au moyen du mécanisme à levier (11).
  5. Dispositif selon la revendication 3,
    caractérisé
    en ce que le dispositif (10) de transport des produits imprimés (2) peut être exactement réglé sur l'épaisseur des produits imprimés à traiter, au moyen du vérin (26).
  6. Dispositif selon la revendication 1,
    caractérisé
    en ce que sont prévues des brosses de guidage (8), qui sont placées sur le pourtour du cylindre guide-papier (3 ; 27, 28, 29 ; 35) et qui guident les produits imprimés (2) et empêchent en même temps qu'ils ne se détachent.
  7. Dispositif selon la revendication 1,
    caractérisé
    en ce que ce dispositif comprend un mécanisme (5, 6, 7), qui commande la prise et la libération des produits imprimés (2) par des pinces (36, 37).
  8. Dispositif selon la revendication 1,
    caractérisé
    en ce que ce dispositif comprend un système à bande de transport (1), qui présente au moins un aiguillage (1A, 1B), afin d'acheminer les produits imprimés (2) dans plusieurs modules de sortie (30, 21, 32).
  9. Dispositif selon la revendication 1,
    caractérisé
    en ce que la vitesse périphérique du cylindre guide-papier (3 ; 27, 28, 29 ; 35) est supérieure à la vitesse périphérique de la roue à pales (9).
  10. Procédé de sortie de produits imprimés dans une machine à imprimer rotative comportant les étapes de procédé suivantes :
    - le transport de produits imprimés (2) vers au moins un cylindre guide-papier (3 ; 27, 28, 29 ; 35) avec au moins
    - un élément (4) de saisie des produits imprimés (2) reposant dessus,
    - l'enlèvement des produits imprimés (2) directement de la surface du cylindre guide-papier (3 ; 27, 28, 29 ; 35) par un nombre de pales (12) d'au moins une roue à pales (9) associée au cylindre guide-papier (3 ; 27, 28, 29 ; 35), qui comporte plusieurs disques (9a) de roue à pales avec un nombre de pales (12),
    - l'acheminement des produits imprimés (2) dans des poches (13) de roue à pales formées entre des pales (12) adjacentes,
    caractérisé par
    le soutien des produits imprimés (2) pendant leur transfert du cylindre guide-papier (3 ; 27, 28, 29 ; 35) dans la roue à pales au moyen d'un dispositif (10), qui peut être ajusté, par un mécanisme (11) exerçant une pression, avec une force de pression contre un cylindre guide-papier (3 ; 27, 28, 29 ; 35).
  11. Procédé selon la revendication 10,
    caractérisé
    en ce que la vitesse périphérique du cylindre guide-papier (3 ; 27, 28, 29 ; 35) est supérieure à la vitesse périphérique de la roue à pales (9).
EP93110266A 1992-08-31 1993-06-28 Dispositif et méthode pour le transfert de produits imprimés dans une machine à imprimer rotative Expired - Lifetime EP0586808B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/937,928 US5236188A (en) 1992-08-31 1992-08-31 Apparatus and method for delivering printed products in a rotary printing press
US937928 1992-08-31

Publications (2)

Publication Number Publication Date
EP0586808A1 EP0586808A1 (fr) 1994-03-16
EP0586808B1 true EP0586808B1 (fr) 1995-11-22

Family

ID=25470584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110266A Expired - Lifetime EP0586808B1 (fr) 1992-08-31 1993-06-28 Dispositif et méthode pour le transfert de produits imprimés dans une machine à imprimer rotative

Country Status (5)

Country Link
US (1) US5236188A (fr)
EP (1) EP0586808B1 (fr)
JP (1) JP3222281B2 (fr)
CA (1) CA2100887C (fr)
DE (2) DE59300998D1 (fr)

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US5359930A (en) * 1993-09-17 1994-11-01 Rockwell International Corporation Device for aligning flies for a printing press
DE19708213A1 (de) * 1996-04-09 1997-10-30 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur Produktführung in einem Falzbildungsbereich eines Falzapparates
US6231044B1 (en) 1998-12-29 2001-05-15 Quad/Tech, Inc. Delivery apparatus for a printing press
DE19903120A1 (de) * 1999-01-27 2000-08-03 Roland Man Druckmasch Vorrichtung zur Verlangsamung von Produkten
DE19926515C2 (de) * 1999-06-10 2003-10-30 Roland Man Druckmasch Vorrichtung zum Ableiten von Produkten an einem Falzzylinder
US6131903A (en) * 1999-07-20 2000-10-17 Quad/Tech, Inc. Signature stripping mechanism
US6578844B2 (en) 2001-04-10 2003-06-17 Xerox Corporation Sheet feeder
ES2239212T3 (es) * 2002-03-14 2005-09-16 Officine Meccaniche Giovanni Cerutti S.P.A. Dispositivo movil para recoger y conducir pliegos producidos en maquinas de impresion rotativas.
US6877740B2 (en) * 2003-07-30 2005-04-12 C.G. Bretting Manufacturing Company, Inc. Starwheel feed apparatus and method
DE10347572B3 (de) * 2003-10-14 2005-05-19 Koenig & Bauer Ag Auslegevorrichtung
US8002689B2 (en) * 2006-03-06 2011-08-23 Goss International Americas, Inc. Folder with signature removal and slowdown process
CH703119A1 (de) * 2010-05-10 2011-11-15 Ferag Ag Vorrichtung und Verfahren zum Transportieren von flexiblen, flächigen Produkten.
US9302875B2 (en) 2011-02-22 2016-04-05 Goss International Americas, Inc. Method and apparatus for diverting signatures in a folder

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GB427438A (en) * 1934-01-06 1935-04-24 Cecil George Quick Improvements in delivery mechanism for use with printing machines
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DE3826348A1 (de) * 1988-08-03 1990-02-08 Roland Man Druckmasch Schaufelradausleger
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US5156389A (en) * 1991-04-19 1992-10-20 Heidelberg Harris Gmbh Fan delivery with format-dependent adjustable signature guides

Also Published As

Publication number Publication date
JPH06191014A (ja) 1994-07-12
DE59300998D1 (de) 1996-01-04
CA2100887A1 (fr) 1994-03-01
CA2100887C (fr) 1996-05-21
EP0586808A1 (fr) 1994-03-16
US5236188A (en) 1993-08-17
JP3222281B2 (ja) 2001-10-22
DE4321419A1 (de) 1994-03-03

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