EP1182161A1 - Dispositif pour plier des feuilles - Google Patents

Dispositif pour plier des feuilles Download PDF

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Publication number
EP1182161A1
EP1182161A1 EP00118523A EP00118523A EP1182161A1 EP 1182161 A1 EP1182161 A1 EP 1182161A1 EP 00118523 A EP00118523 A EP 00118523A EP 00118523 A EP00118523 A EP 00118523A EP 1182161 A1 EP1182161 A1 EP 1182161A1
Authority
EP
European Patent Office
Prior art keywords
folding
sheet
rollers
stops
fold
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Withdrawn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
EP00118523A
Other languages
German (de)
English (en)
Inventor
Winfried Böttcher
Claus-Dieter Redmer
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 EP00118523A priority Critical patent/EP1182161A1/fr
Publication of EP1182161A1 publication Critical patent/EP1182161A1/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Withdrawn legal-status Critical Current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
    • B65H45/18—Oscillating or reciprocating blade folders

Definitions

  • the invention relates to a device for folding sheets with a folding sword connected to a clock-controlled drive, with two folding rollers, the axes of which are in a common one Lay level and the a gap between them form, which is aligned with the folding sword, and with one between the folding sword and the two folding rollers arranged folding table, which has a through opening for the Folding sword and stops for the leading edge of the sheet as well Means for aligned positioning of the sheet in has its folded position.
  • Pocket folding machines are used to fold sheets, Sword folding machines or combination folding machines.
  • the fold will thereby formed by the folding rollers that break the fold at the same time Generate across the entire width of the folded sheet.
  • the folding rollers are set to slip to good To ensure quality and safe transport.
  • the achieved pressing effect is not very large, so the fold rather is round. If multiple folds are provided, Air in the bow and tensions arise in it. This causes the sheet to relax again after folding and "rises".
  • the two folding rollers via one Subordinate a pair of folding press rollers.
  • the axes of the Folding press rolls extend parallel to the incoming one last fold break, which caused the "jumping" of the press rollers when The fold fold can run in because the entire fold width at the same time runs into the clamping line of the folding press rolls.
  • the folded sheet is used for common cross folds on the top of the fold thicker than in the rest of the area, see above that the rest of the area does not have sufficient contact with the Folding press rolls receives. Since the fold and the paper fiber in are somewhat elastic, the fold break acts like one Feather. This spring effect remains after the brief pressing obtained by the folding press rolls. The achievable press effect at the fold is therefore small, even if through in the nip Spring load pressures of 20 to 40 kN can be generated.
  • the folded sheets from the funnel fold in the direction of the fold between folding press rolls with a short axial extension carried out the axes of the fold line of the arc preferably at an angle of substantially Cross 90 °. This enables a point-wise effective repressing of the fold, as there are high effective compressive forces in the fold area can be generated, which makes the fold sharp.
  • a device for pressing is folded Bow known as an independent unit after the last pair of folding rollers of a folding machine is and serves all occurring in practice To press types of folded sheets sharply.
  • the pressed folded sheets with the folds forward at an angle through the press rolls guided.
  • For diagonally guiding the folded sheets to be pressed top straps with different lengths are provided.
  • the press rolls can be on the right or left side arranged obliquely to the feed direction of the single sheets to be pressed become. This allows pressing of single sheets then to the pair of folding rollers of the folding machine cause low pressing forces. The reordering of the device in relation to the last pair of folding rollers requires a large one equipment expenditure.
  • the object underlying the invention is therefore in designing the device of the type mentioned at the outset in such a way that with no additional press rolls or presses Press rollers with sharp edges while folding with the folding sword folded sheets can be generated.
  • This task is based on the device of the beginning mentioned type in that the plane of the axes of the two folding rollers at an acute angle to the folding table level is inclined.
  • the apex of the angle preferably lies on the side of the stops.
  • the angle is advantageously 2 to 10 °, preferably 3 to 5 °.
  • the device for folding sheet 6 has one with one clock-controlled drive 8 connected folding sword 1 and two Folding rollers 2, the axes of which are in a common plane 10 (FIG. 2) and which form a gap 7 between them, the is aligned with the folding sword 1.
  • a folding table 5 arranged of a through opening 9 for the folding sword 1 and stops 3 for the inlet edge 11 of the sheet 6 and Aligned positioning devices, not shown of the sheet 6 in its folded position.
  • These facilities consist essentially of conveyor belts, not shown, Baffles, side limit stops as well as load balls or load rollers.
  • the one from a feeder or a previous folder fed sheet 6 is on the folding table 5 to the stops 3 transported and aligned there. After done Alignment is carried out by the drive 8, the folding sword 1 an upper end position moves down, the aligned sheet 6 takes and forms a fold passes through the passage opening 9. In its lower The folding sword 1 passes the sheet 6 into the gap 7 in the end position of the two folding rollers 2.
  • the two folding rollers 2 have axes which are in a common, shown in phantom in broken lines in FIG. 2 Level 10.
  • This level 10 is to the folding table level 12 starting from the area of the stops 3 at an angle ⁇ inclined, which is preferably between 3 and 5 °.
  • the folding sheet 6 is due to the inclined position of the folding rollers 2 with respect of the folding table 5 first on the side of the stops 3 in a point Y is detected and then at the angle ⁇ 'that the Angle ⁇ corresponds, conveyed diagonally through the folding rollers 2.
  • the inlet edge 11 of the sheet 6 always remains parallel to the plane of the folding table 5.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP00118523A 2000-08-25 2000-08-25 Dispositif pour plier des feuilles Withdrawn EP1182161A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00118523A EP1182161A1 (fr) 2000-08-25 2000-08-25 Dispositif pour plier des feuilles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00118523A EP1182161A1 (fr) 2000-08-25 2000-08-25 Dispositif pour plier des feuilles

Publications (1)

Publication Number Publication Date
EP1182161A1 true EP1182161A1 (fr) 2002-02-27

Family

ID=8169661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118523A Withdrawn EP1182161A1 (fr) 2000-08-25 2000-08-25 Dispositif pour plier des feuilles

Country Status (1)

Country Link
EP (1) EP1182161A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348664A1 (fr) * 2002-03-25 2003-10-01 MASCHINENBAU OPPENWEILER BINDER GmbH & Co. KG Plieuse avec un ensemble de butée latérale
EP1348665A2 (fr) * 2002-03-25 2003-10-01 MASCHINENBAU OPPENWEILER BINDER GmbH & Co. KG Plieuse avec un module pour plier des feuilles en direction perpendiculaire au pli transversal
EP1637342A3 (fr) * 2004-09-16 2006-05-24 Ricoh Company, Ltd. Dispositif pour plier et transformer des imprimés

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB447163A (en) * 1934-05-28 1936-05-13 Georg Spiess Improvements in or relating to folding machines
EP0038942A1 (fr) * 1980-04-30 1981-11-04 ERNST NAGEL GmbH & Co. KG Machine à plier et à brocher des feuilles de papier
US4863152A (en) * 1988-04-29 1989-09-05 Qfc, Inc. High speed quarter-folder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB447163A (en) * 1934-05-28 1936-05-13 Georg Spiess Improvements in or relating to folding machines
EP0038942A1 (fr) * 1980-04-30 1981-11-04 ERNST NAGEL GmbH & Co. KG Machine à plier et à brocher des feuilles de papier
US4863152A (en) * 1988-04-29 1989-09-05 Qfc, Inc. High speed quarter-folder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1348664A1 (fr) * 2002-03-25 2003-10-01 MASCHINENBAU OPPENWEILER BINDER GmbH & Co. KG Plieuse avec un ensemble de butée latérale
EP1348665A2 (fr) * 2002-03-25 2003-10-01 MASCHINENBAU OPPENWEILER BINDER GmbH & Co. KG Plieuse avec un module pour plier des feuilles en direction perpendiculaire au pli transversal
EP1348665A3 (fr) * 2002-03-25 2003-10-22 MASCHINENBAU OPPENWEILER BINDER GmbH & Co. KG Plieuse avec un module pour plier des feuilles en direction perpendiculaire au pli transversal
EP1637342A3 (fr) * 2004-09-16 2006-05-24 Ricoh Company, Ltd. Dispositif pour plier et transformer des imprimés
EP1759869A1 (fr) * 2004-09-16 2007-03-07 Ricoh Company, Ltd. Dispositif pour plier et transformer des imprimés
US7416177B2 (en) 2004-09-16 2008-08-26 Ricoh Company, Ltd. Sheet folding apparatus, sheet processing apparatus and image forming apparatus
US7744076B2 (en) 2004-09-16 2010-06-29 Ricoh Company, Ltd. Sheet folding apparatus, sheet processing apparatus and image forming apparatus

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