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EP0381931B1 - Plieuse avec dispositif de coupe des tranches - Google Patents

Plieuse avec dispositif de coupe des tranches Download PDF

Info

Publication number
EP0381931B1
EP0381931B1 EP90100432A EP90100432A EP0381931B1 EP 0381931 B1 EP0381931 B1 EP 0381931B1 EP 90100432 A EP90100432 A EP 90100432A EP 90100432 A EP90100432 A EP 90100432A EP 0381931 B1 EP0381931 B1 EP 0381931B1
Authority
EP
European Patent Office
Prior art keywords
folder
cylinder
blowing nozzles
connection hole
compressed air
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
EP90100432A
Other languages
German (de)
English (en)
Other versions
EP0381931A3 (fr
EP0381931A2 (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 EP0381931A2 publication Critical patent/EP0381931A2/fr
Publication of EP0381931A3 publication Critical patent/EP0381931A3/fr
Application granted granted Critical
Publication of EP0381931B1 publication Critical patent/EP0381931B1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/60—Folding or cutting crosswise
    • 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 with a smooth cutting device consisting of two knife cylinders equipped with scissor cut knives, one of which is provided with puncture needles adjacent to its scissor cut knives for holding the sections and dips with a part of its circumference into a suction channel.
  • a folder of this type is known for example from DE-A-30 30 706.
  • Such arrangements can lead to malfunctions in that the sections needled onto the puncture needles are not pulled off the puncture needles reliably enough in the region of the suction channel. The consequence of this is that several sections come to lie on top of each other and the lower ones Sections are pushed further and further onto the pin needles.
  • the measures according to the invention ensure that the cylinder containing the puncture needles and blowing nozzles is not unduly weakened.
  • the measures according to the invention are therefore advantageous, in particular in the case of knife cylinders with a small diameter, and ensure that in the case of folding apparatuses for the production of small product formats, unnecessarily large cylinder diameters are not required.
  • Another advantage of the measures according to the invention can be seen in the fact that air is fed into the suction duct through the blowing nozzles, so that the amount of air sucked in from outside and accordingly the air flow resulting outside the suction duct are reduced, so that even with a comparatively strong suction draft inside of the suction channel there is no disturbance of the folding products passing through the folding device and a high level of noise.
  • the cylinder containing the blow nozzles can be provided with at least one radially opening connection bore connected to the blow nozzles and can be enclosed in the region of the connection bore by a stationary block connected by one to the compressed air line Supply channel is penetrated, the inner mouth of which is run over by the mouth of the connecting bore.
  • the block can expediently be pivotable and fixable with respect to the axis of the associated knife cylinder. This makes it possible to easily set the angular range within which compressed air is applied to the blowing nozzles.
  • a further advantageous measure can consist in the mouth of the supply channel ending in a control chamber which extends over a circumferential angle which corresponds approximately to the circumferential angle over which the suction duct extends.
  • a sleeve containing the control chamber can advantageously be inserted into the block. This measure enables particularly simple manufacture.
  • the folding apparatus on which FIG. 1 is based contains a folding knife cylinder 1, the folding knife 2 of which with the Interacting jaws 3 of a jaw cylinder 4. This carries in the area between the jaws 3 scissors cutters 5 which cooperate with scissors cutters 7 arranged on an adjacent knife cylinder 6.
  • the scissor cut knives 5 and 7 effect a smooth cut at the rear end of the products accommodated in the folding jaws 3.
  • the products are delivered from the folding jaw cylinder 4 either to an adjacent belt guide or an adjacent paddle wheel.
  • the stripe-shaped product sections resulting from the execution of the smooth cut are needled on the scissor cut knives 7 of the knife cylinder 6, that is to say set back in relation to them in the cylinder rotation direction, on the knife cylinder 6 stationary needle needles 8 and then suctioned off.
  • a suction channel 9 is provided, into which the knife cylinder 6 is immersed with part of its circumference in such a way that the channel entrance is covered.
  • the removal of the product sections from the puncture needles 8 is supported by measures on the cylinder side.
  • the knife cylinder 6, as can best be seen from FIG. 2, is provided with the blowing needles 8 adjacent to the puncture needles 8. These are arranged in a row and in an alternating sequence with the puncture needles 8.
  • the blow nozzles 10 are formed by radial bores with a small diameter of approximately 2 mm.
  • the blowing nozzles 10 can be acted upon by compressed air as they pass through the circumferential area encompassed by the suction channel 9, as a result of which the product sections 11 needled on the pin needles 8, indicated by a dash-dotted line in FIG. 2, are lifted off the pin needles 8 and the suction channel 9 is fed with air.
  • a compressed air line 12 is provided connected to a compressed air source, for example an internal compressed air network, which is connected via a rotating union to a bore system provided on the cylinder side, which leads from a radially opening connection bore 13 to the radial bores forming the blower nozzles 10.
  • the radial bores forming the blowing nozzles start from an axial bore 14 which is continuous over the cylinder length and is closed in the region of the cylinder end faces and which is connected via a radial bore 15 which is likewise closed on the circumference to a central axial blind bore 16 which is closed on the end face and into which the radial connecting bore 13 opens.
  • the knife cylinder 6 is provided with lateral journals 17 which are mounted in the associated frame walls 18. One of the journals 17 is provided with an extension extending beyond the associated frame wall 18 for receiving the connection bore 13 and the rotating union.
  • the rotary feedthrough contains a block 20 which is provided with a bore 19 parallel to the cylinder and which is attached to the extension of the bearing pin 17 containing the connection bore 13.
  • the block 20, which can be pivoted about the cylinder axis, can be connected to the adjacent frame wall 18 by means of a retaining screw 21 and can thus be secured against rotation.
  • the block 20 is secured in the axial direction by clamping rings and spacer sleeves.
  • the block 20 is provided with a radial bore forming a supply channel 22, to the circumferential end of which the compressed air line 12 connects and which passes through to the bore 19 parallel to the cylinder.
  • the local inner mouth of the supply channel 22 is accordingly run over with each revolution of the knife cylinder 6 from the outer end of the connection bore 13, with the blowing nozzles 10 being pressurized with compressed air.
  • a nipple 25 is provided for connecting the compressed air line 12 to the outer end of the radial bore 22 forming the supply channel.
  • the retaining screw 21 is simply loosened and the block 20 is rotated accordingly. Accordingly, as can best be seen in FIG. 3, the latter is provided with an elongated hole 23 penetrated by the retaining screw 21 and concentric with the cylinder axis.
  • a bushing 24 containing the bore 19 is inserted into the block 20 and has a circumferential recess 25 into which the radial bore forming the supply channel 22 runs.
  • the recess 24 practically forms a control chamber for extending the compressed air supply to the blowing nozzles 10 over the diameter of the supply channel 22 corresponding angular range.
  • the recess 24 accordingly extends over a circumferential angle which corresponds approximately to the circumferential angle within which the knife cylinder 6 dips into the intake duct 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Claims (10)

  1. Plieuse comportant un dispositif de coupe des tranches, constitué de deux cylindres porte-lames (4, 6) garnis de lames de coupe en ciseaux (5, 7), dont l'un est pourvu de picots (8) voisins de ses lames de coupe en ciseaux (7) pour tenir les rognures et plonge par une partie de sa périphérie dans un canal d'aspiration (9), caractérisée en ce que des tuyères de soufflage (10) sont prévues à proximité des picots (8) et sont raccordées à une conduite d'air comprimé (12) dont l'ouverture et la fermeture peuvent être commandées au rythme de la rotation du cylindre, de manière que les tuyères de soufflage (10) puissent être alimentées en air comprimé au passage devant le canal d'aspiration (9).
  2. Plieuse selon la revendication 1, caractérisée en ce que le cylindre porte-lames (6) contenant les tuyères de soufflage (10) est pourvu d'au moins un orifice de raccordement (13) débouchant radialement et relié aux tuyères de soufflage (10), et est entouré dans la zone de l'orifice de raccordement (13) d'un bloc (20) pouvant être immobilisé en rotation et traversé d'un canal d'alimentation (22) raccordé à la conduite d'air comprimé (12), canal devant l'embouchure intérieure duquel passe l'embouchure de l'orifice de raccordement (13).
  3. Plieuse selon la revendication 2, caractérisée en ce que le bloc (20) peut être tourné et immoblisé par rapport à l'axe du cylindre porte-lames (6) coordonné.
  4. Plieuse selon une des revendications 2 et 3 précédentes, caractérisée en ce que le canal d'alimentation (22) se termine par son embouchure dans une chambre de commande (24) dont l'étendue dans la direction périphérique est plus grande que le diamètre de l'orifice de raccordement (13) passant devant elle.
  5. Plieuse selon la revendication 4, caractérisée en ce que la chambre de commande (24) s'étend sur un angle périphérique qui correspond à peu près à l'angle périphérique sur lequel le cylindre porte-lames (6) plonge dans le canal d'aspiration (9).
  6. Plieuse selon une des revendications 2 à 5 précédentes, caractérisée en ce qu'un coussinet (23) contenant la chambre de commande (24) est disposé dans le bloc (20).
  7. Plieuse selon une des revendications 2 à 6 précédentes, caractérisée en ce que le bloc (20) présente un trou oblong (23) concentrique à l'axe du cylindre et traversé d'une vis d'arrêt (21) pouvant être fixée au bâti recevant le cylindre porte-lames (6).
  8. Plieuse selon une des revendications 2 à 7 précédentes, caractérisée en ce que l'orifice de raccordement (13) est prévu au droit d'un prolongement, faisant saillie du bâti, d'un tourillon (17) du cylindre porte-lames (6).
  9. Plieuse selon une des revendications précédentes, caractérisée en ce que les tuyères de soufflage (10) sont réalisées sous forme de perçages radiaux.
  10. Plieuse selon une des revendications précédentes, caractérisée en ce que les tuyères de soufflage (10) sont disposées dans une rangée et en alternance, dans cette rangée, avec les picots (8) coordonnés.
EP90100432A 1989-02-04 1990-01-10 Plieuse avec dispositif de coupe des tranches Expired - Lifetime EP0381931B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3903380A DE3903380A1 (de) 1989-02-04 1989-02-04 Falzapparat mit glattschnitteinrichtung
DE3903380 1989-02-04

Publications (3)

Publication Number Publication Date
EP0381931A2 EP0381931A2 (fr) 1990-08-16
EP0381931A3 EP0381931A3 (fr) 1991-02-27
EP0381931B1 true EP0381931B1 (fr) 1993-05-26

Family

ID=6373460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100432A Expired - Lifetime EP0381931B1 (fr) 1989-02-04 1990-01-10 Plieuse avec dispositif de coupe des tranches

Country Status (4)

Country Link
US (1) US5049120A (fr)
EP (1) EP0381931B1 (fr)
JP (1) JP2771299B2 (fr)
DE (2) DE3903380A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904076A1 (de) * 1989-02-11 1990-08-16 Frankenthal Ag Albert Falzapparat
DE9200575U1 (de) * 1991-04-11 1992-04-23 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zur Sicherung des Papierlaufs in einem Falzapparat
US6095961A (en) * 1998-05-14 2000-08-01 F. L. Smithe Machine Company, Inc. Radial aligner and folding mechanism
DE19825599A1 (de) * 1998-06-09 1999-12-16 Focke & Co Verpackungsmaschine, insbesondere für Zigaretten
US6279890B1 (en) 2000-04-11 2001-08-28 Goss Graphic Systems, Inc. Combination rotary and jaw folder for a printing press
US6733431B2 (en) * 2001-09-19 2004-05-11 Heidelberger Druckmaschinen Ag Device and method for folding newspapers with flexible inserting position
ATE310559T1 (de) * 2002-05-29 2005-12-15 Cook William A Australia Trigger-draht system für eine prothesenplazierungsvorrichtung
EP1754602A3 (fr) * 2003-04-23 2007-03-28 Koenig & Bauer Aktiengesellschaft Machine d'impression rotative
DE20321544U1 (de) * 2003-06-12 2007-11-29 Man Roland Druckmaschinen Ag Schneidzylinder zum Querschneiden einer Bedruckstoffbahn in einer Rotationsdruckmaschine
US20050070415A1 (en) * 2003-09-30 2005-03-31 Haasl Andrew L. Assembly for and method of preventing buildup of debris in a folding roll tucker assembly

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974149A (en) * 1932-06-22 1934-09-18 Paper Converting Machine Co Sheet-folding machine
DE944919C (de) * 1953-01-17 1956-06-28 Jagenberg Werke Ag Querschneider zum Schneiden laufender Material-, insbesondere Papierbahnen mittels umlaufender Messerwalzen
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
DE1611283C2 (de) * 1967-08-09 1975-11-27 Koenig & Bauer Ag, 8700 Wuerzburg Schneid- und Falzapparat an Rollenrotationsmaschinen
US3667354A (en) * 1969-01-30 1972-06-06 Rotographic Machinery Co Web fed rotary variable repeat cutter-creaser system
US3689061A (en) * 1970-07-02 1972-09-05 Paper Converting Machine Co System for folding napkins
FR2392916A1 (fr) * 1977-05-31 1978-12-29 Chambre Imprimerie Claude Dispositif pour effectuer des decoupages dans une bande de materiau defilant en continu
DE3030706C2 (de) * 1980-08-14 1983-11-24 Albert-Frankenthal Ag, 6710 Frankenthal Falzapparat
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

Also Published As

Publication number Publication date
DE59001519D1 (de) 1993-07-01
DE3903380C2 (fr) 1993-02-04
EP0381931A3 (fr) 1991-02-27
JPH02243467A (ja) 1990-09-27
JP2771299B2 (ja) 1998-07-02
DE3903380A1 (de) 1990-08-09
US5049120A (en) 1991-09-17
EP0381931A2 (fr) 1990-08-16

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