EP0130868B1 - Dispositif pour ralentir les exemplaires dans un pli d'équerre de plieuse utilisée en relation avec les presses rotatives - Google Patents

Dispositif pour ralentir les exemplaires dans un pli d'équerre de plieuse utilisée en relation avec les presses rotatives Download PDF

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Publication number
EP0130868B1
EP0130868B1 EP84401146A EP84401146A EP0130868B1 EP 0130868 B1 EP0130868 B1 EP 0130868B1 EP 84401146 A EP84401146 A EP 84401146A EP 84401146 A EP84401146 A EP 84401146A EP 0130868 B1 EP0130868 B1 EP 0130868B1
Authority
EP
European Patent Office
Prior art keywords
copy
holes
vacuum
boxes
stop
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
EP84401146A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0130868A1 (fr
Inventor
Michel Odeau
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.)
Harris Marinoni SA
Original Assignee
Harris Marinoni SA
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 Harris Marinoni SA filed Critical Harris Marinoni SA
Publication of EP0130868A1 publication Critical patent/EP0130868A1/fr
Application granted granted Critical
Publication of EP0130868B1 publication Critical patent/EP0130868B1/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
    • 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B65H29/686—Pneumatic brakes
    • 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 an improvement to the knife angle folds which are used as the final stage of the folding machines used in connection with the rotary presses.
  • folding cylinder On the folding cylinder, which rotates, for example anticlockwise, there are a certain number of folding pairs made up of fixed jaws 5 or "beak bars", machined in the cylinder proper (c 'is a notch parallel to a generator of the cylinder) and a movable blade or "gripping blade 6, which cooperates with 5. While the cylinder 2 rotates, in the direction of the arrow, a cam opens the blade 6, while a set of fixed strippers 7, mounted in a plurality of circular grooves machined in the cylinder 2, takes off the specimen from the jaw.
  • This loop is installed between a mad return pulley 10, mounted near the strippers and is driven by a controlled roller 11.
  • the specimen 1, detached from the jaw 5 and 6 is pinched between the cords 3 and 4, to be drawn towards the square fold.
  • a square fold table 12 extends under the lower cords. This table is open, in its center by a slot 13, parallel to the direction of movement of the copies.
  • This stop pressed against the table of the angle fold 12 is machined and carries notches 15 to give passage to the upper and lower cords 3 and 4.
  • the purpose of this head stop is to temporarily keep the item when the he succeeded, pushed by cords 3 and 4.
  • two fold rollers 16 and 17, rotating in opposite directions are driven at the desired speed.
  • the roller 16 rotates clockwise in Figure 2, while the roller 17 rotates counterclockwise.
  • a blade 30 or knife, suitably articulated to the frame by the axis 18 and moved from top to bottom by the crank pin 19 and the connecting rod 20 introduces the copy 1 between the folding rollers 16 and 17 to fold it (see FIG. 2) .
  • the crankpin 19 is linked to the machine drive to perform a revolution each time a copy is sent to the square fold.
  • the folding rollers 16, 17 are also linked to the driving of the machine so that the folding speed is sufficient to fold one copy completely before the next arrives.
  • the blade phase of the fold knife square, with respect to the introduction of the specimens by the cylinder 2 is such that the blade 30 touches the specimen approximately when the latter reaches the head stop.
  • Document DE-C-976.121 describes an example of a known angle-fold mechanism in which a mechanical brake slows the specimens by piercing their rear edges between two cams.
  • document FR-A-2,380,971 discloses a pneumatic brake for a recording medium constituted by a continuous strip of paper.
  • the strip of paper passes over a sliding surface of a brake body provided with suction openings from which air is sucked in by means of a suction device.
  • Another object of the invention is to avoid unwanted folds and the horns at the last moment of folding, as will be explained below and also the rebound on head stop.
  • Claim 1 defines, in accordance with the invention, a device for slowing down the specimens in a knife angle fold of a known type.
  • the present invention essentially consists in adding to a conventional square knife fold, as described above, two vacuum boxes 21 and 22 extending longitudinally and parallel to the fold rollers 16 and 17 and placed outside the passage. cords 3 and 4.
  • the vacuum boxes are preferably located between two sets of cords, on each side of the slot 13 and symmetrically with respect thereto.
  • the vacuum boxes consist of a U-shaped iron, plugged at both ends by a welded sheet and fixed under the square fold table 12 in an airtight manner.
  • the table 12 is pierced by a plurality of holes 23 extending over the length of the box and placed so that the hole closest to the stop is drilled at a distance between 50 and 75 mm from the stop, while the hole furthest from it is at a distance less than the length of the copy arriving at the right angle.
  • the holes can have a diameter between 10 and 20 mm.
  • a tube 24, welded to the box 21 allows a partial vacuum to be produced in this box.
  • a tube 25 fixed to the box 22 is also used for this purpose.
  • the pipes 24 and 25 are connected by a hose to a T-junction, 26, so that the two sides of the hose 27 have the same shape and the same length.
  • the air is evacuated to a blower 28 by a hose 27.
  • This blower is driven by an electric motor in a manner known per se.
  • a typical diameter of pipes and hoses is 50 mm.
  • the blower can be provided to give a vacuum of 2 meters of water, when the flow is 200 m 3 / h .
  • a butterfly valve 29 is arranged in by-pass on the hose 27, to allow air to enter the blower 28 directly instead of coming from the boxes 21 and 22.
  • This valve is actuated in a known manner by a telemo - size dependent on the speed of the press.
  • the throttle valve is open at low speeds and closed at high speeds.
  • the operating principle is as follows: When a specimen, on its way on the head stopper, driven by the belts, passes over the holes 23a, 23b, 23c and 23d, it closes successively these holes.
  • the blade 30 and the fold rollers pull the copy towards the center of the table where the slot 13 is located, in which it disappears under the table 12.
  • Figure 6 is a diagram of the law of depression in boxes, as a function of time. The depression increases progressively, as new holes are closed by the advance of the specimen, then suddenly drops to atmospheric pressure, as soon as the specimen being folded clears all the holes simultaneously.
  • Another interesting means of carrying out the invention is to drive the blower at the speed of the press, instead of driving it at constant speed by an electric motor.
  • the purpose of the butterfly valve 29 in the description above is to reduce the vacuum at low press speeds.
  • the vacuum of a conventional blower is roughly proportional to the square of its drive speed, which means that by driving the blower at machine speed, the vacuum is always appropriate and proportional to the kinetic energy contained in the copy .
  • the butterfly 29 would only be used to take into account the quality of the folded paper, its grammage and its coefficient of friction on the table, but more than the speed of the press.
  • Other variations may also include larger vacuum boxes extending more widely under the table, from the side to the center of the table.
  • a blowing of compressed air above the table, produced by overpressure boxes (31) located above the copy and provided with holes (32), opposite corresponding holes (33) drilled in the table (see Figure 7) also constitutes an application of the invention, each copy being able to slide in a passage (34) formed between these overpressure boxes and the table.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP84401146A 1983-06-06 1984-06-05 Dispositif pour ralentir les exemplaires dans un pli d'équerre de plieuse utilisée en relation avec les presses rotatives Expired EP0130868B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8309350 1983-06-06
FR8309350A FR2546818B1 (fr) 1983-06-06 1983-06-06 Dispositif pour ralentir les exemplaires dans un pli d'equerre de plieuse utilisee en relation avec les presses rotatives

Publications (2)

Publication Number Publication Date
EP0130868A1 EP0130868A1 (fr) 1985-01-09
EP0130868B1 true EP0130868B1 (fr) 1988-08-17

Family

ID=9289510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401146A Expired EP0130868B1 (fr) 1983-06-06 1984-06-05 Dispositif pour ralentir les exemplaires dans un pli d'équerre de plieuse utilisée en relation avec les presses rotatives

Country Status (5)

Country Link
US (1) US4549728A (enrdf_load_stackoverflow)
EP (1) EP0130868B1 (enrdf_load_stackoverflow)
JP (1) JPS606561A (enrdf_load_stackoverflow)
DE (1) DE3473434D1 (enrdf_load_stackoverflow)
FR (1) FR2546818B1 (enrdf_load_stackoverflow)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62136478A (ja) * 1985-12-04 1987-06-19 Komori Printing Mach Co Ltd 折機のチヨツパ装置
JPH0798612B2 (ja) * 1987-08-06 1995-10-25 大日本印刷株式会社 印刷折帖形成装置
GB2255551B (en) * 1991-05-10 1995-01-18 Frankenthal Ag Albert Feeding signatures to a reciprocating blade folder
FR2688771B1 (fr) * 1992-03-18 1994-06-17 Heidelberger Druckmasch Ag Dispositif hypocyclouidal de pli d'equerre.
GB2281069B (en) * 1993-08-17 1997-04-23 Rockwell Pmc Limited Folding apparatus
JP2786617B2 (ja) * 1996-05-16 1998-08-13 三菱重工業株式会社 折機のシート等の搬送装置
US6551228B1 (en) * 1997-10-23 2003-04-22 Heidelberger Druckmaschinen Ag High speed quarterfolder
US6840616B2 (en) * 2001-03-29 2005-01-11 Scott Summers Air folder adjuster apparatus and method
DE502005003563D1 (de) * 2004-03-01 2008-05-15 Koenig & Bauer Ag Längsfalzapparat mit einem bremsweg
FR2915423B1 (fr) * 2007-04-27 2010-12-10 Goss Int Montataire Sa Dispositif de pliage et presse d'impression correspondante
JP2008273726A (ja) * 2007-05-07 2008-11-13 Mitsubishi Heavy Ind Ltd 折機およびこれを用いた印刷機
FR2917395B1 (fr) * 2007-06-12 2009-09-18 Goss Int Montataire Sa Table pour dispositif de pli d'equerre et dispositif de pli d'equerre correspondant.
FR2918360B1 (fr) * 2007-07-03 2010-02-05 Goss Int Montataire Sa Table de pliage et dispositif de pli d'equerre correspondant
FR2921353B1 (fr) * 2007-09-24 2010-06-18 Goss Int Montataire Sa Rouleau de pliage et plieuse correspondante
US7850588B2 (en) * 2007-09-26 2010-12-14 Goss International Americas, Inc Folder with common chopper
US10543622B2 (en) 2008-07-03 2020-01-28 JPL Global, LLC Rotatable filter system and methodology
US8869786B2 (en) * 2008-07-03 2014-10-28 Mitch Faiweather Chop saw with dust collection system
DE102009003240B4 (de) * 2009-03-27 2021-01-28 Koenig & Bauer Ag Verfahren zur Korrektur einer Schräglage eines aus einem Falzwalzenspalt eines Längsfalzapparates austretenden Produktes und Längsfalzapparat
FR2954757B1 (fr) * 2009-12-29 2012-04-27 Goss Int Montataire Sa Dispositif de pliage comportant une ou plusieurs courroies apte(s) a effectuer un mouvement cadence entre deux positions
JP6694255B2 (ja) * 2014-10-01 2020-05-13 ミュラー・マルティニ・ホルディング・アクチエンゲゼルシヤフト 印刷用紙ブレーキ
BR102015024454A2 (pt) * 2014-10-01 2016-05-24 Mueller Martini Holding Ag freio extrator transversal para folha de impressão
US10934119B2 (en) * 2018-02-28 2021-03-02 Mueller Martini Holding Ag Printing sheet brake

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US396308A (en) * 1889-01-15 stonemetz
DE976121C (de) * 1954-02-12 1963-03-07 Maschf Augsburg Nuernberg Ag Einrichtung zum Verlangsamen eines vorgefalzten Bogenpakets
US3252700A (en) * 1963-12-12 1966-05-24 Ametek Inc Laundry machine
US3632104A (en) * 1969-08-27 1972-01-04 Harris Intertype Corp Balanced folder assembly
US3785636A (en) * 1971-09-20 1974-01-15 Ethyl Corp Bag folding apparatus
US3879029A (en) * 1971-10-01 1975-04-22 John L Cruden Piped opening for use in a garment and apparatus for forming same
GB1469343A (en) * 1973-05-09 1977-04-06 Windmoeller & Hoelscher Apparatus for laying a film web of film web in an overlapped configuration or for folding over ends of film web sections
DE2352864C2 (de) * 1973-10-22 1982-05-13 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Steuervorrichtung für Blas- und Saugluft an Druckmaschinen
US3926425A (en) * 1974-06-27 1975-12-16 Kimberly Clark Co Method of coupon positioning and mechanism therefor
DE2707170C2 (de) * 1977-02-18 1982-07-15 Siemens AG, 1000 Berlin und 8000 München Pneumatische Bremse für einen Aufzeichnungsträger
DE2837392C3 (de) * 1978-08-26 1981-04-02 Koenig & Bauer AG, 8700 Würzburg Längsfalzvorrichtung
US4419088A (en) * 1981-06-19 1983-12-06 Nemec David G Gate folding apparatus

Also Published As

Publication number Publication date
FR2546818B1 (fr) 1987-03-20
US4549728A (en) 1985-10-29
JPH0442313B2 (enrdf_load_stackoverflow) 1992-07-13
EP0130868A1 (fr) 1985-01-09
JPS606561A (ja) 1985-01-14
DE3473434D1 (en) 1988-09-22
FR2546818A1 (fr) 1984-12-07

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