EP0383148B1 - Appareil pour plier - Google Patents

Appareil pour plier Download PDF

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Publication number
EP0383148B1
EP0383148B1 EP90102282A EP90102282A EP0383148B1 EP 0383148 B1 EP0383148 B1 EP 0383148B1 EP 90102282 A EP90102282 A EP 90102282A EP 90102282 A EP90102282 A EP 90102282A EP 0383148 B1 EP0383148 B1 EP 0383148B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
nozzles
folder
guide
web
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
EP90102282A
Other languages
German (de)
English (en)
Other versions
EP0383148A3 (fr
EP0383148A2 (fr
Inventor
Sebastian Prüm
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.)
Albert Frankenthal AG
Original Assignee
Albert Frankenthal 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 Albert Frankenthal AG filed Critical Albert Frankenthal AG
Publication of EP0383148A2 publication Critical patent/EP0383148A2/fr
Publication of EP0383148A3 publication Critical patent/EP0383148A3/fr
Application granted granted Critical
Publication of EP0383148B1 publication Critical patent/EP0383148B1/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
    • 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
    • B65H45/167—Rotary folders with folding jaw cylinders having associated sheet guide means
    • 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
    • B65H45/28—Folding in combination with cutting

Definitions

  • the invention relates to a folder according to the preamble of claim 1.
  • a folder of this type is known from DE-B-16 11 292 .
  • folders of this type there is the advantage that different formats can be produced without the cross cutter with a subsequent acceleration path usually provided in the case of variable folders being required.
  • the products to be manufactured must already be separated from the web at their rear end before the grippers can grip the front end of these web sections.
  • the result of this is that the front web end which arises with each cut before its entry into the tape guide, ie in the region of the gusset between the interface and the beginning of the tape guide, is without a guide. There is therefore a risk that this front strand will be wavy, which can lead to inaccurate folds in the course of later processing.
  • the effectiveness of the known blowing device is therefore limited to the area that can be perforated, which can lead to inconveniences when exchangeable measuring bars are used. Accordingly, the blown air supplied to the blower device of the known arrangement is not controlled, but rather is continuously supplied. Difficulties would accordingly arise when installing the blowing device which can be found in DE-A-21 42 902 in a generic arrangement, since the beginning of the web which was not held in the generic arrangement would be washed away by the blowing air permanently emitted by the blowing device.
  • Another advantage of the combination according to the invention is that an air cushion is formed between the web and the fixed guide device on the one hand and the gripper cylinder on the other hand, or in any case is not removed, which ensures that the surface of the web is protected.
  • the measures according to the invention accordingly result in high accuracy, high reliability and excellent protection of the products.
  • the nozzles can be activated as they pass through the cutting gap and the gusset connected to them and can be passivated outside of them. This allows the energy consumption to be kept within limits. At the same time it is ensured that the Air flow-caused disturbances of other work processes are switched off.
  • the cylinder containing the nozzles can be provided in the area of at least one bearing journal with at least one radially opening connection bore connected to the blowing nozzles and in the area of the connection bore can be surrounded by a block which can be secured against counter-rotation and which produces a pressure difference from one to another Unit connected supply channel is penetrated, the inner mouth of which is run over by the mouth of the connecting hole.
  • the block can expediently be pivotable and lockable with respect to the axis of the assigned cylinder, which enables simple adjustment of the activation phase.
  • the folding apparatus on which FIG. 1 is based comprises a knife cylinder 1, a collecting cylinder 2 positioned thereon and a folding jaw cylinder 3 interacting with it.
  • the knife cylinder 1 is provided with two knives 4 which are offset by 180 ° and which form a cross-section on the collecting cylinder 2 arranged counter knives 5, in the form of cutting grooves or counter holding rails or the like, cooperate.
  • the collecting cylinder 2 is a three-part cylinder. Accordingly, three counter knives 5 offset by 120 ° are provided.
  • the collecting cylinder 2 is further provided with the counter-knives 5, which are offset relative to them in the direction of rotation forward grippers 6 and with folding knives 7 arranged between the grippers 6 and the associated counter-knives 5. These interact with jaws 8 of the jaw cylinder 3, which like the knife cylinder 1 is designed as a two-part cylinder.
  • the cylinders 1, 2, 3 are driven with the same circumferential speed independent of the speed of the web 9 entering the cutting gap between the knife cylinder 1 and the collecting cylinder 2, so that different section lengths can be produced.
  • the grippers 6 and folding blades 7 of the collecting cylinder 2 and, with the folding blades, the folding jaws 8 of the folding jaw cylinder 3 can be adjusted depending on the format.
  • the grippers 6 are controlled in such a way that they only grip the front end of the product after the rear end is separated from the web 9 by a cross section and the web section 9a thus produced can assume the cylinder peripheral speed which deviates from the web speed.
  • the circumferential region of the collecting cylinder 2 leading from the knife cylinder 1 in the direction of rotation to the folding jaw cylinder 3 is encompassed by a belt guide 10 which is driven at the circumferential cylinder speed.
  • the belt guide 10 holds the web start or web sections 9 which arises with each cross section in contact with the collecting cylinder 2, so that the grippers 6 can grasp the front edge of the section.
  • the strips of the strip guide 10 are deflected by deflecting rollers 11 arranged in the outlet region of the cutting gap between the knife cylinder 1 and the collecting cylinder 2 and in the inlet region of the folding gap between the collecting cylinder 2 and the folding jaw cylinder 3.
  • the knife cylinder 1 with its knives 4 is trailing Provide blowing nozzles 12, which can be connected to a compressed air source when passing through the cutting gap and the gusset connected thereafter. Due to the dynamic pressure of the air jets emerging from the blowing nozzles 12, the web material is pressed against the collecting cylinder 2, as indicated by the arrow 13 in FIG. 1.
  • the blowing nozzles 12 are simply formed by radial or secant bores from which further bores can originate, so that there are blowing nozzles 12 arranged one after the other in the circumferential direction.
  • the nozzle outlet can equip the nozzle outlet with nipples, which can be adjustable and allow strong beam focusing.
  • the blowing nozzles 12 are distributed uniformly over the cylinder length.
  • the collecting cylinder 2 could be provided with suction nozzles which follow the counter knives 5 and can be connected to a vacuum source and through which the web material could be attracted to the collecting cylinder 2.
  • stationary guide device 14 is provided, which ensures mechanical guidance of the material flowing out of the cutting gap.
  • this guide device consists of a plurality of guide tongues 15 arranged at a distance from one another. These are spaced apart from one another in such a way that the blowing nozzles 12 can blow through between them, as indicated in FIG. 2 by arrow 13.
  • the blowing nozzles 12 are accordingly set to a gap in the longitudinal direction of the cylinder with respect to the guide tongues 15.
  • the guide tongues 15 are received on a traverse 16 which is continuous over the machine width. This is, as can be seen in FIG. 1, arranged so that it does not hinder the air jets penetrating the space 17 between adjacent guide tongues 15, ie the cylinder-side flanks of the guide tongues 15, which are approximately triangular in cross section, are at least partially left free.
  • the blowing nozzles 12 are connected to a compressed air source, in the form of a compressed air line 20 connected to the in-house compressed air network, via a rotating union 19 provided in the area of the axle journal 18 of the knife cylinder 1 and a cylinder-side bore system.
  • a compressed air source in the form of a compressed air line 20 connected to the in-house compressed air network
  • the blowing nozzles assigned to the offset knives 4 of the knife cylinder 1 can be assigned via their own rotary unions 19 arranged in the area of the same or different axle journals 18 and assigned to these Drilling systems can be supplied with compressed air.
  • the bore system associated with each of the blow nozzles 12 following a knife 4 leads from the radial bores forming the blow nozzles 12 to an axial bore 21 which is closed at the end and is continuous over the cylinder length and from which the radial bores forming the blow nozzles 12 depart and which is connected via a radial bore 22, which is likewise closed on the circumferential side, to a central axial blind bore 23, which is closed on the end face and from which a radial connecting bore 24 extends. This is located in the region of an extension of the journal 18 that extends beyond the frame wall 25.
  • the rotary union 19 contains a block 26 which is provided with a bore parallel to the cylinder and which is plugged onto the extension of the journal 18 containing the connection bore 24.
  • the block 26, which can be pivoted with respect to the cylinder axis, can be connected to the adjacent frame wall 25 by means of a retaining screw 27 and can thus be secured against rotation. In the axial direction, the block 26 is secured by clamping rings and spacer sleeves.
  • the block 26 is provided with a radial bore forming a retraction channel 28, at the circumferential end of which the compressed air line 20 connects and which extends through to the bore of the block 26 parallel to the cylinder.
  • the inner mouth of the supply channel 28 is run over at each revolution of the knife cylinder 1 by the end of the connecting bore 24 located in the region of the circumference of the axle journal 18, with the blowing nozzles 12 being pressurized with compressed air.
  • a nipple can be provided for connecting the compressed air line 20 at the outer end of the supply channel 28.
  • the holding screw 27 is simply loosened and the block 26 is rotated accordingly. Accordingly, as can best be seen from FIG. 4, the latter is provided with an elongated hole 29, penetrated by the retaining screw 27 and concentric with the cylinder axis.
  • a bushing 30 is inserted into the block 26 and has a circumferential recess 31 into which the supply channel 28 runs.
  • the recess 31 practically forms a control chamber for extending the compressed air supply to the blowing nozzles 10 beyond the angular range corresponding to the diameter of the radial bore forming the supply channel 28.
  • the cutout 31 accordingly extends over a circumferential angle which corresponds approximately to the angular distance between the interface and the adjacent deflecting roller 11.

Landscapes

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

Claims (8)

  1. Appareil de pliage comprenant un cylindre de coupe (1) qui peut être entraîné indépendamment de la vitesse de la bande (9) qui défile, qui coopère avec un contre-cylindre (2) pour la fabrication de sections de bande (9a), qui est muni de griffes (6) pour les arêtes antérieures des sections et dont la zone péripherique quittant la fente de coupe est entourée par un guidage de bande (10), caractérisé en ce que le cylindre de coupe (1) est muni, dans la zone faisant suite à ces lames (4), de tuyères de soufflage (12) orientées vers le cylindre opposé (2), qui peuvent être raccordées à une source d'air sous pression, et en ce que, dans la zone du coin qui se raccorde à la lente de coupe, est disposé un mécanisme conducteur stationnaire (14) attribué au guidage de bande (10), qui est constitue de languettes conductrices (15) disposées les unes à côté des autres, tout en étant mutuellement espacées, par rapport auxquelles les tuyères (12) sont disposées en chicane.
  2. Appareil de pliage selon la revendication 1, caractérisé en ce que les tuyères (12) peuvent être rendues actives lors du passage en continu de la fente de coupe et du coin se raccordant à cette dernière, et peuvent être rendues passives par ailleurs.
  3. Appareil de pliage selon l'une quelconque des revendications précédentes, caractérisé en ce que les languettes conductrices (15) viennent se disposer sur une traverse continue (16) qui laisse libre au moins partiellement les flancs des languettes conductrices (15) côté cylindre.
  4. Appareil de pliage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'on prévoit respectivement plusieurs tuyères (12) disposées en série les unes derrière les autres.
  5. Appareil de pliage selon l'une quelconque des revendications précédentes, caractérisé en ce que le cylindre (1) contenant les tuyères (12) est muni, dans la zone d'au moins un tourillon (18), d'au moins un alésage de raccordement (24) à orifice radial relié aux tuyères (12) et est entouré, dans la zone de l'alésage de raccordement (24), d'un bloc (26) apte à être fixé pour résister à la torsion, qui est traversé par un canal d'alimentation (28) raccordé à un agrégat procurant une différence de pression, dont l'orifice interne est dépassé par l'orifice externe de l'alésage de raccordement (24).
  6. Appareil de pliage selon la revendication 5, caractérisé en ce que le bloc (26) peut pivoter et être fixé par rapport à l'axe du cylindre (1) qui lui est attribué.
  7. Appareil de pliage selon la revendication 5 ou 6, caractérisé en ce que le canal d'alimentation (28) débouche côté orifice dans une chambre de commande (31) dont l'étendue en direction périphérique est supérieure au diamètre de l'alésage de raccordement (24) qui passe devant.
  8. Appareil de pliage selon l'une quelconque des revendications précédentes 5 à 7, caractérisé en ce que, dans le bloc (26), est insérée une douille (30) contenant la chambre de commande (31).
EP90102282A 1989-02-11 1990-02-06 Appareil pour plier Expired - Lifetime EP0383148B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904076 1989-02-11
DE3904076A DE3904076A1 (de) 1989-02-11 1989-02-11 Falzapparat

Publications (3)

Publication Number Publication Date
EP0383148A2 EP0383148A2 (fr) 1990-08-22
EP0383148A3 EP0383148A3 (fr) 1991-04-03
EP0383148B1 true EP0383148B1 (fr) 1994-04-20

Family

ID=6373851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102282A Expired - Lifetime EP0383148B1 (fr) 1989-02-11 1990-02-06 Appareil pour plier

Country Status (4)

Country Link
US (1) US5004451A (fr)
EP (1) EP0383148B1 (fr)
JP (1) JPH0643233B2 (fr)
DE (2) DE3904076A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120629A1 (de) * 1991-06-22 1992-12-24 Roland Man Druckmasch Einrichtung zum querschneiden von bahnen
FR2692875B1 (fr) * 1992-06-25 1994-10-07 Heidelberger Druckmasch Ag Appareil de pliage pour la réalisation d'exemplaires pliés à partir d'une bande de papier imprimée.
DE4229059C2 (de) * 1992-09-01 1996-07-11 Koenig & Bauer Albert Ag Falzapparat für Rollen-Rotationsdruckmaschinen
FR2697205B1 (fr) * 1992-10-26 1995-03-24 Heidelberger Druckmasch Ag Machine à couper et plier une bande de papier imprimée ininterrompue.
DE19515268C1 (de) * 1995-04-26 1996-08-08 Roland Man Druckmasch Falzapparat zum wahlweisen Herstellen von einmal oder zweimal quergefalzten Produkten
US5842964A (en) * 1997-07-01 1998-12-01 Fred Huber & Associates Sheet folding apparatus with vacuum grip
FR2774024B1 (fr) * 1998-01-27 2000-04-14 Heidelberger Druckmasch Ag Plieuse d'une machine rotative a imprimer
WO1999047348A1 (fr) * 1998-03-20 1999-09-23 Specialty Systems Advanced Machinery, Inc. Machine a plier le papier a grande vitesse
US6551227B1 (en) * 1999-12-08 2003-04-22 Heidelberger Druckmaschinen Ag Device for seizing of flat material on a transporting surface
US6440053B1 (en) * 2000-01-11 2002-08-27 William P. Niedermeyer Apparatus for folding pluralities of product webs advancing along parallel paths
US6705981B2 (en) * 2000-01-27 2004-03-16 Heidelberger Druckmaschinen Ag Device for retention of products on a transporting surface in a folder
US6537188B1 (en) * 2000-04-27 2003-03-25 Heidelberger Druckmaschinen Ag Variable-length cut-off jaw folder
DE10204362A1 (de) † 2002-02-02 2003-08-14 Roland Man Druckmasch Falzapparat einer Rotationsdruckmaschine
US7008364B2 (en) * 2002-09-27 2006-03-07 C.G. Bretting Manufacturing Company, Inc. Sheet folding apparatus and method
DE10344950A1 (de) * 2003-09-27 2005-04-28 Koenig & Bauer Ag Zylinder mit einem Zylinderkörper und wenigstens einem Greifer
US7824752B2 (en) * 2005-06-30 2010-11-02 Express Card And Label Co., Inc. Fan-folded web of pressure-sensitive labels
ITBO20060293A1 (it) * 2006-04-14 2007-10-15 Tech S R L S Gruppo di taglio e piega per prodotti quali fazzoletti, tovaglioli e simili.
WO2012123813A1 (fr) * 2011-03-17 2012-09-20 Fameccanica.Data Spa Procédé et équipement permettant de plier une couche-culotte
CN102794931B (zh) * 2012-08-23 2014-02-26 倪汉平 纸张切型折叠机
US10390999B2 (en) * 2014-05-29 2019-08-27 The Procter & Gamble Company Method and apparatus for manufacturing an absorbent article including a discrete substrate having a rugosity
FR3039453B1 (fr) * 2015-07-31 2017-08-11 Holweg Group Machine et procede de fabrication de sacs

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US1974149A (en) * 1932-06-22 1934-09-18 Paper Converting Machine Co Sheet-folding machine
US2165786A (en) * 1937-05-22 1939-07-11 Paper Converting Machine Co Paper napkin machine
DE944919C (de) * 1953-01-17 1956-06-28 Jagenberg Werke Ag Querschneider zum Schneiden laufender Material-, insbesondere Papierbahnen mittels umlaufender Messerwalzen
US2872186A (en) * 1956-07-10 1959-02-03 Levey Fred K H Co Inc Folder for printing presses
US3010260A (en) * 1957-01-26 1961-11-28 Berkley Machine Co Apparatus for forming openings in blanks or paper web from which envelopes are formed
DE1209414B (de) * 1964-01-24 1966-01-20 Winkler Richard Fensterschneidwalze in Maschinen zum Herstellen von Briefumschlaegen, Flachbeuteln od. dgl. mit mehreren Fensterausschnitten
US3363896A (en) * 1965-08-04 1968-01-16 Thomas W. Mckindary Methods and apparatus for zig-zag folding a web
DE1278450B (de) * 1966-10-12 1968-09-26 Leipzig Veb Druckmasch Werke Falzvorrichtung an Rollen-Rotations-druckmaschinen fuer einen zweiten Querfalz
US3506255A (en) * 1967-06-07 1970-04-14 Leipzig Veb Druckmasch Werke Apparatus for the manufacture of a second cross-fold on folding devices of rotary printing machines
CH477979A (de) * 1967-11-03 1969-09-15 Albert Schnellpressen Variabler Falzapparat für Rollen-Rotationsdruckmaschinen
DE2142902A1 (de) * 1971-08-27 1973-03-08 Dornier Ag Vorrichtung zum schneiden, sammeln und falzen einer oder mehrerer ankommender papierbahnen
DD135467A1 (de) * 1977-12-01 1979-05-09 Manfred Rutschke Bogenablenker
DE2822137C2 (de) * 1978-05-20 1984-05-30 Albert-Frankenthal Ag, 6710 Frankenthal Maschine zur Verarbeitung bahnförmigen Materials
DE3302038A1 (de) * 1983-01-22 1984-07-26 Winkler & Dünnebier, Maschinenfabrik und Eisengießerei GmbH & Co KG, 5450 Neuwied Rotierende schneidvorrichtung zur herstellung von fensterausschnitten in briefhuellen und kartonagen
US4842574A (en) * 1987-07-21 1989-06-27 Noble Noel L Buckle chute folder having sheet squaring feature
DE3903380A1 (de) * 1989-02-04 1990-08-09 Frankenthal Ag Albert Falzapparat mit glattschnitteinrichtung

Also Published As

Publication number Publication date
DE3904076A1 (de) 1990-08-16
EP0383148A3 (fr) 1991-04-03
US5004451A (en) 1991-04-02
EP0383148A2 (fr) 1990-08-22
DE59005396D1 (de) 1994-05-26
DE3904076C2 (fr) 1993-03-25
JPH0643233B2 (ja) 1994-06-08
JPH02261774A (ja) 1990-10-24

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