EP1475333B1 - Plieuse à poches - Google Patents

Plieuse à poches Download PDF

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Publication number
EP1475333B1
EP1475333B1 EP20030010424 EP03010424A EP1475333B1 EP 1475333 B1 EP1475333 B1 EP 1475333B1 EP 20030010424 EP20030010424 EP 20030010424 EP 03010424 A EP03010424 A EP 03010424A EP 1475333 B1 EP1475333 B1 EP 1475333B1
Authority
EP
European Patent Office
Prior art keywords
sheet
folding roller
folding
roller pair
edge
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 - Fee Related
Application number
EP20030010424
Other languages
German (de)
English (en)
Other versions
EP1475333A1 (fr
EP1475333B8 (fr
Inventor
Klaus Stocklassa
Bodo Tegtmeier
Georg Dannemann
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.)
MBO Postpress Solutions GmbH
Original Assignee
Maschinenbau Oppenweiler Binder GmbH and Co KG
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 Maschinenbau Oppenweiler Binder GmbH and Co KG filed Critical Maschinenbau Oppenweiler Binder GmbH and Co KG
Priority to EP20030010424 priority Critical patent/EP1475333B8/fr
Priority to DE50306184T priority patent/DE50306184D1/de
Publication of EP1475333A1 publication Critical patent/EP1475333A1/fr
Publication of EP1475333B1 publication Critical patent/EP1475333B1/fr
Application granted granted Critical
Publication of EP1475333B8 publication Critical patent/EP1475333B8/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B65H45/14—Buckling folders
    • B65H45/142—Pocket-type folders
    • B65H45/147—Pocket-type folders folding rollers 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
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/25—Damages to handled material
    • B65H2601/251—Smearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/25—Damages to handled material
    • B65H2601/2525—Collisions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/25—Damages to handled material
    • B65H2601/253—Damages to handled material to particular parts of material
    • B65H2601/2531—Edges

Definitions

  • the invention relates to a pocket folder according to the preamble of patent claim 1.
  • Such a pocket folder is known, for example, from EP 0 732 294 A3.
  • the driven folding rollers are driven by a single drive via toothed belts or gears.
  • a sheet is inserted through a first pair of folding rollers in the folding pocket of the folding unit, it strikes with its leading edge on the sheet stop.
  • curling may occur, causing variations in the accuracy of a fold.
  • the transport speed of the first folding roller pair must therefore be reduced so that the formation of marks on the sheet edge when hitting the sheet stop is prevented.
  • the invention has for its object to provide with simple design means a pocket folder with high performance.
  • the method according to claim 4 and 5 can be carried out with the pocket folder according to the invention.
  • the transport speed of the Falzwalzencrue is independently adjustable, it is possible to reduce the transport speed of the sheet just before the impact of a leading edge on the sheet stop and to increase again after the impact of the sheet stop. As a result, the formation of marks on the leading edge of the sheet and a wave formation can be prevented and the performance of the pocket folder can be increased.
  • the transport speed can be increased in the short term, just before the leading edge sheet after the entry of the sheet in the second pair of folding rollers is in the vicinity of the trailing sheet section, which is still transported by the first pair of folding rollers.
  • a bulge in the trailing portion of the sheet behind the first pair of folding rollers are formed, by the unfolding of the already folded portion of the sheet is prevented, so that the sheet is properly inserted between the folding rollers of the second pair of folding rollers.
  • the production speed of the pocket folder is increased, but also the quality of the folded sheets.
  • the Taschenfalzwerk shown in Figs. 1 to 4 has a folding pocket 24, in which an adjustable sheet stop 26 is provided.
  • a first, vertically arranged pair of folding rollers 18, 20 is provided, through which a sheet 12 is inserted through the inlet opening 25 until the leading sheet edge 30 hits the sheet stop 26 in the folding pocket 24.
  • the upper folding roller 18 of the first folding roller pair in FIG. 1 is driven by a servomotor SV1.
  • the second folding roller 20 is driven by its own servo motor SV3.
  • Fig. 1 shows the inlet of a sheet 12 in the folding pocket to form a first fold.
  • the transport speed of the first pair of folding rollers 18, 20 is reduced shortly before the leading edge 30 hits the sheet stop 26.
  • the transport speed is increased again to the original transport speed.
  • the normal transport speed is for example 200 m / min.
  • the transport speed is reduced to 150 m / min.
  • the leading edge of the sheet 30 is just before hitting the trailing portion 36 of the sheet 12.
  • the first pair of folding rollers 18, 20 as possible accelerated as possible short time in addition to promote 1 to 2 cm bow. Subsequently, the folding rollers 18, 20 are rotated again at normal speed. As a result of the acceleration, after the first folding roller pair 18, 20, a bulge 34 is formed which presses the leading end 30 of the sheet downwards in the direction of the folding roller gap between the folding rollers 20, 22. This ensures that the sheet edge 30 is inserted properly between the folding rollers 20, 22 in order to achieve a decent folding result.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Claims (5)

  1. Plieuse à poches avec au moins une poche de pliage (24) pourvue d'un orifice d'entrée (25) et d'une butée de feuilles (26), devant ledit orifice d'entrée (25) étant disposées une première paire de cylindres de pliage (18, 20) pour un transport d'une feuille (12) dans la poche de pliage (24), et une seconde paire de cylindres de pliage (20, 22) pour un transport et un pliage de la feuille (12) une fois que la feuille (12) a rencontré la butée de feuilles (26), caractérisée en ce que la vitesse de transport des paires de cylindres de pliage (18, 20 ; 20, 22) est réglable individuellement.
  2. Plieuse à poches selon la revendication 1, caractérisée en ce qu'un cylindre de pliage entraîné (20) forme un cylindre de pliage à la fois de la première paire de cylindres de pliage (18, 20) et de la seconde paire de cylindres de pliage (20, 22), tous les cylindres de pliage étant entraînés séparément par un servomoteur respectif (SV1, SV2, SV3) ou bien les cylindres de pliage de la première paire de cylindres de pliage (18, 20) étant entraînés par un servomoteur commun (SV1) et l'autre cylindre de pliage de la seconde paire de cylindres de pliage (20, 22) étant entraîné par un servomoteur séparé (SV2).
  3. Plieuse à poches selon la revendication 2, caractérisée en ce que les entraînements sont formés par des servomoteurs commandés par un dispositif de commande.
  4. Procédé pour le pliage d'une feuille par une plieuse à poches selon l'une des revendications 1 à 3, caractérisé en ce que l'on diminue la vitesse de transport de la première paire de cylindres de pliage (18, 20) juste avant que l'arête avant (30) de la feuille rencontre la butée de feuilles (26).
  5. Procédé pour le pliage d'une feuille (12) pliée au moins le long d'une ligne de pliage pour réaliser une arête de pliage (28), à l'aide d'une plieuse à poches (10) selon l'une des revendications 2 ou 3, dans lequel la feuille pliée (12) est d'abord introduite à travers la première paire de cylindres de pliage (18, 20) jusqu'à ce que l'arête de pliage (28) bute sur la butée de feuilles (26), l'extrémité avant (30) de la feuille étant alors tournée vers la première paire de cylindres de pliage (18, 20), puis la feuille pliée (12) est introduite le long d'une seconde ligne de pliage (32) dans la seconde paire de cylindres de pliage (20, 22), une partie arrière (36) de la feuille (12) étant alors transportée en même temps à travers la première paire de cylindres de pliage (18, 20), caractérisé en ce que l'on accélère la première paire de cylindres de pliage (18, 20) avant que l'arête avant (30) de la feuille rencontre la partie arrière (36) de la feuille (12).
EP20030010424 2003-05-08 2003-05-08 Plieuse à poches Expired - Fee Related EP1475333B8 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20030010424 EP1475333B8 (fr) 2003-05-08 2003-05-08 Plieuse à poches
DE50306184T DE50306184D1 (de) 2003-05-08 2003-05-08 Taschenfalzwerk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20030010424 EP1475333B8 (fr) 2003-05-08 2003-05-08 Plieuse à poches

Publications (3)

Publication Number Publication Date
EP1475333A1 EP1475333A1 (fr) 2004-11-10
EP1475333B1 true EP1475333B1 (fr) 2007-01-03
EP1475333B8 EP1475333B8 (fr) 2007-04-25

Family

ID=32981845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030010424 Expired - Fee Related EP1475333B8 (fr) 2003-05-08 2003-05-08 Plieuse à poches

Country Status (2)

Country Link
EP (1) EP1475333B8 (fr)
DE (1) DE50306184D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007302383A (ja) * 2006-05-10 2007-11-22 Horizon International Inc 紙折装置
EP2660177B1 (fr) * 2012-04-30 2016-03-23 Heidelberger Druckmaschinen AG Procédé de pliage et machine à faire des poches pliées

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5967963A (en) * 1996-11-26 1999-10-19 Grapha-Holding Ag Apparatus for folding paper sheets

Also Published As

Publication number Publication date
EP1475333A1 (fr) 2004-11-10
DE50306184D1 (de) 2007-02-15
EP1475333B8 (fr) 2007-04-25

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