EP0592857B1 - Dispositif pour le transport sans accroc de produits dans des machines de pliage - Google Patents

Dispositif pour le transport sans accroc de produits dans des machines de pliage Download PDF

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Publication number
EP0592857B1
EP0592857B1 EP93115537A EP93115537A EP0592857B1 EP 0592857 B1 EP0592857 B1 EP 0592857B1 EP 93115537 A EP93115537 A EP 93115537A EP 93115537 A EP93115537 A EP 93115537A EP 0592857 B1 EP0592857 B1 EP 0592857B1
Authority
EP
European Patent Office
Prior art keywords
product
cylinder
covering
trouble
products according
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
EP93115537A
Other languages
German (de)
English (en)
Other versions
EP0592857A2 (fr
EP0592857A3 (fr
Inventor
Johannes Springer
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 EP0592857A2 publication Critical patent/EP0592857A2/fr
Publication of EP0592857A3 publication Critical patent/EP0592857A3/fr
Application granted granted Critical
Publication of EP0592857B1 publication Critical patent/EP0592857B1/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

Definitions

  • the invention relates to a device for trouble-free product conveyance in folders, both through a gap between two product-carrying cylinders and through a gusset area extending behind it, which is delimited laterally by peripheral surfaces of both cylinders and at the top by a guide device for the product to be conveyed.
  • DE 37 05 195 A1 shows a guiding device in the cylinder gusset of two interacting cylinders.
  • a rotating part mounted with bearing stubs has adjustable connecting pieces which ensure continuous guidance of the leading product section, but leave the trailing product section moving out of the cylinder gap into the gusset area to itself.
  • a transverse folding device similar to the guide device disclosed in DE 37 05 195 A1 is disclosed in DE 35 12 308 C2.
  • This cross-folding device also has a rotatable middle part, the connecting pieces of which, however, are designed to be fixed with a tangential transition. The trailing end of a folded product passing through the gap between the folding cylinder surfaces cannot be guided with this transverse folding device either.
  • DE 33 21 577 C2 discloses brake brushes in the folder of rotary printing presses.
  • the circumference of a folding knife cylinder employed brake brushes can only be influenced on a trailing end of the product.
  • the area of action of the brake brushes in the lower gusset area between the folding knife cylinder and the jaw cylinder is limited by the contour of the lower cylinder gusset.
  • the holding and braking force exerted by the brushes no longer acts, so that the trailing end of the product entering the cylinder gap is suddenly relieved and tends to compress in the upper region of the cylinder gusset.
  • the fluttering and whipping movements of the trailing product section in turn disturb the movement sequence of the leading product section and are therefore highly undesirable.
  • a folding roller equipped with a jacket is known.
  • the jacket which improves the take away of a bow, is made of an easily deformable material such as rubber or rubber substitutes.
  • friction jackets of these materials are applied to the surfaces of the folding rollers.
  • the invention is therefore based on the object of optimizing the transition from folded product areas of a folded product between product-carrying cylinders.
  • the coating on the circumference of a cylinder taking over the product, viewed in the direction of product movement, is arranged in front of a gripping device.
  • the coating extends on the circumference of the cylinder receiving the product on both sides of a cylinder center running between the cylinders.
  • Fig. 1 the transition of a folded product between two product-carrying cylinders is shown.
  • a product 6 guided on the circumference of a folding knife cylinder 1 is held on the circumference of the folding knife cylinder 1 by punctures 3, supported by adjustable brushes 4.
  • the product spine is pushed into a folding jaw 8 of a folding jaw cylinder 7 by a folding knife 2 parallel to the product 6, depending on the operating mode, whether the second transverse fold or the delta fold is being driven.
  • the fold flap 8 gripping the fold back of the product 6 pulls the product released by the punctures 3 off the circumference of the fold knife cylinder 1.
  • the leading product end 6a is continuously guided along a guide plate 5, while the trailing product end 6b leaving the effective area 4 of the brushes 4 enters the gap between the product-guiding cylinders 1 and 7.
  • a coating 10 is applied, the extent of which is dimensioned on the periphery of the jaw cylinder 7 such that both the trailing product ends 6b are simply cross-folded as well delta folded products 6 can be included.
  • compression of the coating 10 forces air out of the individual chambers 11 lying one behind the other in the circumferential direction. In this compressed state, the openings of the chambers 11 are closed by the trailing end 6b of the product, which clings to the surface of the coating 10. If the trailing end 6b of the product lying on the coating 10 moves out of the gap, the coating 10 (see also FIG. 3) returns to its original thickness.
  • Fig. 2 shows a strip-shaped coating section.
  • the coating 10 can be designed as a plate covering a complete section of the cylinder jacket of the jaw cylinder 7, or it can consist of individual strips arranged side by side in the axial direction.
  • the plates can be traversed by ventilation channels, particularly in the middle area.
  • the chambers 11 have a teardrop-shaped contour, the narrowest point of the contour being oriented in the direction of product movement 15. It would also be conceivable to have oval contours, longitudinal slots or similar contours of the individual chambers 11, as well as a sequence of different geometries both in the circumferential direction and in the axial direction of the jaw cylinder 7.
  • the compressible coating 10 can be considered to be largely inelastic Executed pad 12 may be provided with which it can be attached to the circumference of the jaw cylinder 7.
  • the thickness of the incompressible base 12 can be used to set the ratio of the compressible coating 10 to the incompressible base 12. Since the chambers 11 are in the compressible coating 10, the compression creates a briefly acting suction force. With different paper basis weights, 12 different production requirements can be taken into account by the choice of the base.
  • Fig. 3 shows compression and decompression of the coating during the passage of the gap between the product-carrying cylinders.
  • the coating 10 By means of a coating 10 extending in the circumferential direction of the folding jaw cylinder 7 on both sides of a cylinder center 9, be it in strip form or as a plate structure, the forces which can be influenced in the gap by the compressibility of the coating can be used for product guidance in the upper gusset region 14 without it being more complex Internals there.
  • the coating 10 is attached to the cylinder jacket in such a way that - seen in the direction of rotation of the cylinder taking over the folded product - it is arranged in the rear region of the jacket segment of the cylinder covered by one product each. This ensures that the trailing product ends 6 b, even in the case of cylinders with multiple large folding products, pass safely through the cylinder gap into the upper cylinder gusset 14, where the holding force gradually decreases after atmospheric pressure compensation through the walls of the chambers 11.
  • the gentle compressive force acting in the gap also provides a tensile force which permanently tightens the trailing end 6b of the product, which counteracts wave formation.

Landscapes

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

Claims (8)

  1. Dispositif de transport de produits sans accroc dans des plieuses, aussi bien par un interstice situé entre deux cylindre (1, 7) sur lesquels les produits passent que dans un coin (14) inscrit entre les cylindres, se trouvant derrière cet interstice et qui est délimité par les surfaces circonférentielles des deux cylindres et vers le haut par un dispositif (5) de guidage du produit à transporter, un revêtement compressible (10) étant disposé sur un cylindre (7) recevant un produit,
       caractérisé
       en ce que le revêtement compressible (10) comprend plusieurs chambres (11) hors desquelles l'air qui s'y trouve est refoulé vers l'extérieur dans l'interstice compris entre les cylindres (1, 7), les chambres (11) qui sont à l'état comprimé étant obturables par une partie du produit (6) et ensuite une dépression limitée dans le temps étant produite par la détente du revêtement (10) et retenant la partie du produit (6) sur la circonférence du cylindre (7).
  2. Dispositif de transport de produits sans accroc selon la revendication 1,
       caractérisé
       en ce que le revêtement (10) est disposé à la circonférence d'un cylindre (1) recevant le produit (6) au-devant d'un dispositif preneur (8) par rapport au sens (15) du mouvement du produit.
  3. Dispositif de transport sans accroc de produits selon la revendication 1,
       caractérisé
       en ce que le revêtement (10) se prolonge à la circonférence du cylindre (1) recevant le produit (6) sensiblement dans la partie arrière - par rapport au sens de transport du produit (6) - du segment de l'enveloppe du cylindre (1) qui est recouvert par le produit.
  4. Dispositif de transport sans accroc de produits selon la revendication 1,
       caractérisé
       en ce que le revêtement (10) qui est fixé à la circonférence du cylindre (1) a la forme de rubans individuels.
  5. Dispositif de transport sans accroc de produits selon la revendication 1,
       caractérisé
       en ce que le revêtement (10) qui est fixé à la circonférence du cylindre (1) est en forme de plaques.
  6. Dispositif de transport sans accroc de produits selon la revendication 4 ou 5,
       caractérisé
       en ce que le revêtement (10) comporte un substrat (12).
  7. Dispositif de transport sans accroc de produits selon la revendication 1,
       caractérisé
       en ce que les chambres (11) du revêtement (10) sont disposées les unes derrière les autres dans la direction (15) du mouvement du produit.
  8. Dispositif de transport sans accroc de produits selon la revendication 1,
       caractérisé
       en ce que les chambres (11) du revêtement (10) ont un contour en forme de goutte.
EP93115537A 1992-10-12 1993-09-27 Dispositif pour le transport sans accroc de produits dans des machines de pliage Expired - Lifetime EP0592857B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4234307 1992-10-12
DE4234307A DE4234307A1 (de) 1992-10-12 1992-10-12 Einrichtung zur störungsfreien Produktförderung in Falzapparaten

Publications (3)

Publication Number Publication Date
EP0592857A2 EP0592857A2 (fr) 1994-04-20
EP0592857A3 EP0592857A3 (fr) 1995-03-08
EP0592857B1 true EP0592857B1 (fr) 1997-05-02

Family

ID=6470233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93115537A Expired - Lifetime EP0592857B1 (fr) 1992-10-12 1993-09-27 Dispositif pour le transport sans accroc de produits dans des machines de pliage

Country Status (3)

Country Link
US (1) US5466212A (fr)
EP (1) EP0592857B1 (fr)
DE (2) DE4234307A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19542695A1 (de) * 1994-12-09 1996-06-13 Heidelberger Druckmasch Ag Falzapparat mit einer Produkthalteeinrichtung
ES2140289B1 (es) * 1996-04-02 2000-08-16 Windmoeller & Hoelscher Casquillo para cilindros impresores.
DE19708213A1 (de) * 1996-04-09 1997-10-30 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur Produktführung in einem Falzbildungsbereich eines Falzapparates
DE19710630C2 (de) * 1997-03-14 1999-11-11 Roland Man Druckmasch Vorrichtung zum Ausrichten von in fortlaufender Reihe transportierten flachen Gegenständen
US5842964A (en) * 1997-07-01 1998-12-01 Fred Huber & Associates Sheet folding apparatus with vacuum grip
DE10013804B4 (de) 1999-04-20 2011-07-14 Heidelberger Druckmaschinen AG, 69115 Verfahren und Vorrichtung zum Aufspannen eines Zylinderaufzuges auf einen Druckmaschinenzylinder
US6250622B1 (en) * 1999-05-20 2001-06-26 Heidelberger Druckmaschinen Aktiengesellschaft Cylinder assembly for a folding apparatus of a rotary printing press
JP3415115B2 (ja) * 2000-11-27 2003-06-09 株式会社東京機械製作所 折畳装置のガイド装置
ATE339311T1 (de) * 2002-10-19 2006-10-15 Koenig & Bauer Ag Andrückelemente einer bahnverarbeitenden druckmaschine
US6942610B2 (en) * 2003-05-28 2005-09-13 Specialty Systems Advanced Machinery, Inc. Web folding machine
WO2005105638A1 (fr) * 2004-04-30 2005-11-10 Komori Corporation Dispositif de pliage en parallele pour machine a plier
CN102791679A (zh) * 2010-03-05 2012-11-21 巴斯夫欧洲公司 制备4-氯苯磺酸和4,4’-二氯二苯砜的方法

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US2843883A (en) * 1953-04-23 1958-07-22 Dayton Rubber Company Textile cot
US2863175A (en) * 1954-04-22 1958-12-09 Dayton Rubber Company Textile working units
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US3349693A (en) * 1965-02-18 1967-10-31 Stowe Woodward Inc Roll cover construction
DE1278450B (de) * 1966-10-12 1968-09-26 Leipzig Veb Druckmasch Werke Falzvorrichtung an Rollen-Rotations-druckmaschinen fuer einen zweiten Querfalz
DE2218085C2 (de) * 1972-04-14 1982-12-23 Winkler & Dünnebier, Maschinenfabrik und Eisengießerei GmbH & Co KG, 5450 Neuwied Vorrichtung zum Falten der Schließ- und Gegenklappen an Briefhüllen mit Selbstklebegummierung
US3820774A (en) * 1972-06-29 1974-06-28 Polygraph Kom Veb Folding blade cylinder for use in rotary folding machines
US3852862A (en) * 1972-11-08 1974-12-10 New Hudson Corp Roll and method of manufacture
DE7904616U1 (de) * 1979-02-20 1979-07-26 Stahl Gmbh & Co Maschinenfabrik, 7140 Ludwigsburg Mit einem mantel ausgeruestete falzwalze
DE8133998U1 (de) * 1981-11-21 1983-12-01 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Falzapparat
DE3321577A1 (de) * 1983-06-15 1984-12-20 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bremsbuersten im falzapparat von rotationsdruckmaschinen
DE3512308A1 (de) * 1985-04-04 1986-10-16 Albert-Frankenthal Ag, 6710 Frankenthal Falzapparat
US4666139A (en) * 1985-10-21 1987-05-19 Harris Graphics Corporation Vacuum system for combination fold-off control
DE3543868A1 (de) * 1985-10-31 1987-05-07 Koenig & Bauer Ag Raederfalzapparat
DE3601660A1 (de) * 1986-01-21 1987-07-23 Eltex Elektrostatik Gmbh Verfahren und vorrichtung zum falzen von aus einer fortlaufenden materialbahn abgeschnittenen bogen
DE3705195A1 (de) * 1987-02-19 1988-09-01 Frankenthal Ag Albert Leiteinrichtung
FR2622145B1 (fr) * 1987-10-23 1994-05-27 Lacaux Freres Papeteries Carto Cylindre cannele pour une machine de fabrication de carton ondule
DE8809285U1 (de) * 1988-07-20 1988-09-01 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum Leiten von Exemplarabschnitten im Falzapparat von Rotationsdruckmaschinen
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Also Published As

Publication number Publication date
DE4234307A1 (de) 1994-04-14
DE59306327D1 (de) 1997-06-05
EP0592857A2 (fr) 1994-04-20
EP0592857A3 (fr) 1995-03-08
US5466212A (en) 1995-11-14

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