EP0999165A2 - Méthode de pliage de feuilles et un appareil de pliage muni de pinces de freinage - Google Patents

Méthode de pliage de feuilles et un appareil de pliage muni de pinces de freinage Download PDF

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Publication number
EP0999165A2
EP0999165A2 EP99120043A EP99120043A EP0999165A2 EP 0999165 A2 EP0999165 A2 EP 0999165A2 EP 99120043 A EP99120043 A EP 99120043A EP 99120043 A EP99120043 A EP 99120043A EP 0999165 A2 EP0999165 A2 EP 0999165A2
Authority
EP
European Patent Office
Prior art keywords
folding
signatures
gripper
brake
grippers
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.)
Withdrawn
Application number
EP99120043A
Other languages
German (de)
English (en)
Other versions
EP0999165A3 (fr
Inventor
John Sheridan Richards
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 EP0999165A2 publication Critical patent/EP0999165A2/fr
Publication of EP0999165A3 publication Critical patent/EP0999165A3/fr
Withdrawn legal-status Critical Current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
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/16—Rotary folders
    • B65H45/162—Rotary folders with folding jaw cylinders
    • B65H45/163—Details of folding jaws therefor
    • 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
    • B65H29/68—Reducing the speed of articles as they advance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/16—Rotary folders
    • B65H45/162—Rotary folders with folding jaw cylinders
    • B65H45/165—Details of sheet gripping means therefor

Definitions

  • the present invention relates to a method for folding signatures and a Folder of a printing machine with brake grippers according to the preamble of claim 1 and 10.
  • a cylinder can do that be designed so that a folding process is carried out in succession at intervals of 120 ° becomes.
  • the diameter of the cylinders must be larger, to minimize the curvature of the faster transported signatures.
  • suitable cylinders can e.g. B. include five folding devices, so that a folding process takes place at intervals of 72 °.
  • Such a configuration of the Cylinder requires an increase in cylinder diameter by 67% and that additional costs for two additional folding devices.
  • the signatures must be before another Editing, e.g. B. a knife folding process, are braked. According to the state of the Technically, this is done using cylinders or belt devices.
  • increased signature speed often required two folders to which alternately, signatures are transferred, as well as separate braking devices for every folder. An increase in the folding speed therefore means increased Costs, an increased space requirement and a more complex construction.
  • a folder with decelerated and with respect to the surface of the gripper drum accelerable grippers according to the present invention also referred to below as Brake grippers are referred to, includes a rotatably mounted jaw cylinder with a variety of jaws and one attached to the jaw cylinder, rotatable mounted gripper drum, which forms a cylinder gap with the jaw cylinder and on which a large number of brake grippers is arranged.
  • Each of the grippers grabs one the incoming signatures and slows them down.
  • the brake grippers is one Folded knife assigned, which the respective signature after braking into a assigned to the jaw of the jaw cylinder.
  • Signatures are the signatures of one of the rotatably mounted on one Gripper drum arranged gripper gripped and braked. After this Braking the signatures are folded by one of the respective grippers assigned folding knife can be pushed into an assigned folding flap.
  • the signatures By braking the signatures according to the invention, they overlap on the Gripper drum. This will increase the number of folded signatures per drum revolution increased and the distance between the signatures can be increased again in the following or the signatures can be sent in groups to two or more subordinate folding stations be handed over.
  • the present invention eliminates the need for additional folding devices caused increased costs, the increased space requirement and without one more complex design higher operating speeds possible.
  • FIG. 1 shows a Folder shown according to the prior art.
  • Fig. 1 shows a schematic cross section of a folder according to the prior art Technique with a folding knife cylinder 12 and a folding jaw cylinder 32, which are rotatably mounted on axes 13 and 33 and form a cylinder gap 30.
  • the Folding knife cylinder 12 rotates at a constant speed in the direction indicated by arrow L. indicated direction about axis 13; the jaw cylinder 32 rotates at a constant Speed in the direction indicated by arrow M about axis 33, the Surface speeds of the cylinders 12 and 32 at the gap 30 are approximately the same.
  • the grippers 14a, 14b, 14c of the folding knife cylinder 12 each assigned a folding knife 16a, 16b, 16c, which turns when the Folding knife cylinder 12 rotates about axis 13 with its peripheral surface 15.
  • a single incoming signature 18a is gripped by the gripper 14a and by the Rotary movement of the folding knife cylinder 12 about the axis 13 with the peripheral surface 15 moved in the direction of the cylinder gap 30.
  • the folding knife 16b from the peripheral surface 15 of the Folding knife cylinder 12 out towards the opposite, by rotating the Folding jaw cylinder 32, folding jaw 34b moved about the axis 33 to the cylinder gap 30 of the jaw cylinder 32 moves.
  • the signature 18b in the Folded flap 34b and folded transversely so that a fold break 19 is formed.
  • By further rotation of the jaw cylinder 32 becomes that held in the jaw 34b Signature 18b transported on the peripheral surface 35.
  • the Folding flaps 34a, 34b and 34c transfer the transported signatures to others Transport devices or processing stations.
  • the folding flap 34c is e.g. B. empty shown; the signature she transported has already been given.
  • Fig. 2 shows a schematic cross section of an embodiment of a folder 100 according to the invention with brake grippers 54a, 54b, 54c, 54d, 54e.
  • the Folder 100 includes an axis in the direction indicated by the arrow 53 rotating gripper drum 52 and one in the direction indicated by arrow Q. about an axis 73 rotating jaw cylinder 73, which together form a cylinder gap 70 form.
  • the gripper cylinder 52 shown in this embodiment comprises five brake-brake grippers 54a, 54b, 54c, 54d, 54e. Each of these brake grippers 54a, 54b, 54c, 54d, A folding knife 56a, 56b, 56c, 56d, 56e is assigned to 54e.
  • the jaw cylinder 72 shown in this embodiment includes five jaws 74a, 74b, 74c, 74c, 74e, which rotate when the jaw cylinder 72 rotates about the axis 73 move with the peripheral surface 75 thereof.
  • the brake / brake grippers 54 are designed in such a way that they are an incoming Grab the signature 58, this on the peripheral surface 55 of the gripper drum 52 can be transported and slowed down, so that the signature 58 on the Cylinder gap 70 has a lower speed than before.
  • the signature 58 is given and the brake gripper 54 is accelerated again so that it can take another incoming signature 58.
  • the braking and the Acceleration of the brake gripper 54 is the diameter and speed of rotation Gripper drum 52 adapted in such a way that the speed of the Brake-brake grippers 54 essentially transported signature 58 at the cylinder gap 70 corresponds to the speed of a folding flap 74 on the cylinder gap 70, so that a smooth handover is possible.
  • the speed of the incoming signature 58 is preferably at 60% of its initial speed by the brake / brake gripper 54 reduced; in other embodiments of the present invention, one incoming signature depending on the size, the arrangement and the Speed of the gripper drum 52 and the jaw cylinder 72 around another Value will be slowed down.
  • Each of the brake-brake grippers 54 can be described as one in US 5,794,929 Rotary gripper be formed. As described in this document, a variety of Signatures a variable by means of gripper devices arranged on a drum Speed profile are transmitted. In other embodiments of the present According to the invention, the brake / brake grippers 54 according to the invention can be any other Apparatus designed, which are suitable for gripping and braking signatures is. The only requirement is that the grippers have a variable speed profile can be assigned.
  • the folding blades 56a, 56b, 56c, 56d, 56e are preferably with the respective brake gripper 54a, 54b, 54c, 54d, 54e connected, so that they are braked at the same time or can be accelerated.
  • the braking of the signatures 58 leads to an overlap successive signatures.
  • a folding blade 56 assigned to a brake gripper 54 is directly opposite one another Folding jaw 74 of the folding jaw cylinder 72 is located, the folding blade 56 from the Circumferential surface 55 of the gripper drum 52 moves out and pushes the signature 58 held by the brake gripper 54 into the jaw 74, so that the signature 58 is folded across.
  • Fig. 2 there is z. B. assigned to the brake gripper 54c Folding knife 56c directly opposite the folding jaw 74c of the folding jaw cylinder 72 and pushes the signature 58c into the fold flap 74c, so that there is a transverse fold break 60 forms.
  • the folded signature is in a predetermined rotational position of the jaw cylinder 72 58 from the folding jaw 74 to carry out a further machining operation, for. B. another folding process or to increase the distance between the signatures, released.
  • the folding flap 74a has z. B. the folded signature 58 already submitted and is therefore empty. Due to the relatively small distance between the folded Signatures 58 due to the overlap on the gripper drum 52 can be advantageous be when the folded signatures 58 in groups for subsequent enlargement of the Distance between them or in groups to one or more subordinate Folding stations or similar processing stations are handed over.
  • the folder with brake grippers according to the present invention offers several Benefits.
  • the signatures are slowed down e.g. B. before the folding process, d. H. before one subsequent processing, the signature does not have to be slowed down.
  • the jaw cylinder 72 can the same folding performance with a lower surface speed than one Folding jaw cylinder according to the state of the art, through the not braked signatures be folded. Accordingly, it is only necessary to reduce the jaw cylinder 72 with smaller ones Form distances between the jaws 74 than is the case in the prior art the case is when the two cylinders rotate at the same speed.
  • the diameter - and thus the volume - of the signatures can also slow down
  • the gripper drum 52 and the jaw cylinder 72 be mine than normal for Minimizing signature curvature at high operating speeds is required.
  • signatures are transported. As previously described, can the distance between the signatures will be increased again in the following, or the signatures with a reduced distance can be grouped to two or more subordinate Folding stations are handed over.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP99120043A 1998-11-05 1999-10-18 Méthode de pliage de feuilles et un appareil de pliage muni de pinces de freinage Withdrawn EP0999165A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US186435 1998-11-05
US09/186,435 US6038974A (en) 1998-11-05 1998-11-05 Gripper deceleration cross folder

Publications (2)

Publication Number Publication Date
EP0999165A2 true EP0999165A2 (fr) 2000-05-10
EP0999165A3 EP0999165A3 (fr) 2002-03-06

Family

ID=22684951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99120043A Withdrawn EP0999165A3 (fr) 1998-11-05 1999-10-18 Méthode de pliage de feuilles et un appareil de pliage muni de pinces de freinage

Country Status (4)

Country Link
US (1) US6038974A (fr)
EP (1) EP0999165A3 (fr)
JP (1) JP2000143090A (fr)
DE (1) DE19949938A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998028216A1 (fr) * 1996-12-21 1998-07-02 Koenig & Bauer Aktiengesellschaft Procede et dispositif pour traiter des bandes de papier continues
DE19903120A1 (de) * 1999-01-27 2000-08-03 Roland Man Druckmasch Vorrichtung zur Verlangsamung von Produkten
US6923752B1 (en) 2000-04-18 2005-08-02 Goss International Americas, Inc. Folding cylinder with expansion segment
DE10058758A1 (de) 2000-11-27 2002-05-29 Heidelberger Druckmasch Ag Falzklappenanordnung an exemplarverarbeitenden Falzzylindern
US6644193B2 (en) 2002-03-12 2003-11-11 Elsner Engineering Works, Inc. Web cutting tuck folding machine and method
US8425392B2 (en) * 2005-12-27 2013-04-23 Goss International Americas, Inc. Broadsheet newspaper printing press and folder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960079A (en) * 1973-07-25 1976-06-01 Societa' Nebiolo S.P.A. Rotary printing press
DE2732641A1 (de) * 1976-08-19 1978-02-23 Wifag Maschf Falzapparat fuer vier oder sechs aetzungen
US4946151A (en) * 1987-10-17 1990-08-07 Man Roland Druckmaschinen Ag Combined folded substrate transfer and speed matching apparatus
EP0472503A1 (fr) * 1990-08-22 1992-02-26 Maschinenfabrik Wifag Dispositif de pliage pour machine à imprimer rotatif
US5452886A (en) * 1993-08-09 1995-09-26 Heidelberger Druckmaschinen Ag Device for slowing down signatures in a folding machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD151134A1 (de) * 1980-06-30 1981-10-08 Otfried Rudolph Antrieb fuer funktionsgruppen in bogenfuehrungszylindern von druckmaschinen
US4682767A (en) * 1985-08-23 1987-07-28 Littleton Francis J Apparatus for folding and delivering sheet material
FR2654981B1 (fr) * 1989-11-28 1995-06-16 Marinoni Harris Sa Plieuse d'imprimerie.
FR2680480B1 (fr) * 1991-08-19 1993-11-26 Harris Marinoni Sa Machine a couper et a plier une bande de papier imprime.
JP3197974B2 (ja) * 1993-03-19 2001-08-13 東芝機械株式会社 可変サイズ折機
DE4316134C2 (de) * 1993-05-13 1997-03-13 Heidelberger Druckmasch Ag Verfahren zur Querfalzung von Bahnen sowie Falzapparat zur Durchführung des Verfahrens
US5794929A (en) * 1993-08-09 1998-08-18 Heidelberger Druckmaschinen Ag Variable velocity profile decelleration device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960079A (en) * 1973-07-25 1976-06-01 Societa' Nebiolo S.P.A. Rotary printing press
DE2732641A1 (de) * 1976-08-19 1978-02-23 Wifag Maschf Falzapparat fuer vier oder sechs aetzungen
US4946151A (en) * 1987-10-17 1990-08-07 Man Roland Druckmaschinen Ag Combined folded substrate transfer and speed matching apparatus
EP0472503A1 (fr) * 1990-08-22 1992-02-26 Maschinenfabrik Wifag Dispositif de pliage pour machine à imprimer rotatif
US5452886A (en) * 1993-08-09 1995-09-26 Heidelberger Druckmaschinen Ag Device for slowing down signatures in a folding machine

Also Published As

Publication number Publication date
US6038974A (en) 2000-03-21
EP0999165A3 (fr) 2002-03-06
DE19949938A1 (de) 2000-05-11
JP2000143090A (ja) 2000-05-23

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