EP0400596B1 - Dispositif de coupe pour une plieuse dans une presse - Google Patents

Dispositif de coupe pour une plieuse dans une presse Download PDF

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Publication number
EP0400596B1
EP0400596B1 EP90110234A EP90110234A EP0400596B1 EP 0400596 B1 EP0400596 B1 EP 0400596B1 EP 90110234 A EP90110234 A EP 90110234A EP 90110234 A EP90110234 A EP 90110234A EP 0400596 B1 EP0400596 B1 EP 0400596B1
Authority
EP
European Patent Office
Prior art keywords
air
cutting
web
grooves
cutting device
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
EP90110234A
Other languages
German (de)
English (en)
Other versions
EP0400596A2 (fr
EP0400596A3 (fr
Inventor
Bernd Glaser
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0400596A2 publication Critical patent/EP0400596A2/fr
Publication of EP0400596A3 publication Critical patent/EP0400596A3/fr
Application granted granted Critical
Publication of EP0400596B1 publication Critical patent/EP0400596B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D2007/082—Guiding or pushing a web into a favorable position by deflector 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
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1316—Details of longitudinal profile shape stepped or grooved
    • B65H2404/13161—Regularly spaced grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1316—Details of longitudinal profile shape stepped or grooved
    • B65H2404/13162—Helicoidal grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/133—Limited number of active elements on common axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/207—By suction means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6472—By fluid current

Definitions

  • the invention relates to a cutting device for a folding unit of a printing press with two cutting cylinders for the vertically fed web and downstream conveyor belt lines, which run over deflection rollers and carry the cut products between them.
  • Such a folder is known from the "Lithoman M” brochure from MAN Roland Druckmaschinen AG, page 6. With this folder, the cut products are without a guide on the way between the cutting cylinders on the one hand and the conveyor belts on the other. It is disadvantageous here that the front cutting edges of the products tend to stick to the teeth of the knife of the one cutting cylinder for a short time. If the leading edge detaches from the cutting cylinder with a slight delay, the direction in which the cut product runs off the cutting cylinders is changed. The front edge then abuts a deflection roller and forms kinked corners when it is pulled in between the conveyor belts. The leading edges may also adhere to a cutting cylinder as a result of electrostatic charging. Such charges can not only occur unintentionally during operation, they are rather deliberately provided in multi-layer webs in order to hold the individual cut sheets together.
  • a cutting device is also already known (DE 28 22 137 A1), in which, for better guidance of the leading edge of the products on both sides of the incoming web, blowing nozzles directed into the gap between the web and cutting cylinder and grooves in the cutting cylinders for the passage of the blowing air are arranged parallel to the web are. At higher web speeds, however, the leading edge of the sheet tends to flutter and misses the inlet gap formed by conveyor belts.
  • the invention has for its object to provide a guide for the cut products between the cutting cylinders and the conveyor belts in a generic cutting device, which ensures an exact entry of the products between the conveyor belt lines.
  • suction nozzles for extracting the air passing through the grooves are arranged between the deflection rollers of the conveyor belt lines. This measure favors the formation of an air cushion carrying the cut products, in particular turbulence in the air behind the cutting cylinders is reduced.
  • the blowing nozzles are advantageously arranged to be adjustable in order to change the direction of the blow-out.
  • the blown air volume and / or the suction air volume can be adjustable according to preferred embodiments.
  • the arrangement according to FIGS. 1 and 2 has two cutting cylinders 1, 2, one of which carries two knives 3, while the other is provided with corresponding resilient bearings 4. Between the two cutting cylinders 1, 2, 5 products are produced from a web that runs vertically from above in the direction of arrow a cut off. These products are detected by conveyor belt lines 6, 7 and passed on in the direction of arrow b.
  • the conveyor belt lines 5, 6 consist of several narrow belts, which are guided over deflection rollers, for example 8, 9, and are driven in a manner known per se, not shown in detail.
  • blowing air nozzles Arranged on both sides of the incoming web 5 are a plurality of blowing air nozzles, generally designated 10 or 11.
  • the side-by-side blowing air nozzles 10 are supplied with compressed air by means of an air supply line 12 and the side-by-side blowing air nozzles 11 are supplied with compressed air.
  • Each blowing air nozzle expediently has e.g. 10 a clamp 14 which can be fixed in different angular positions on the air supply line 12 by means of a screw 15 which is only indicated schematically.
  • blowing air nozzles 10, 11 can also be firmly connected to the air supply lines. Then the air supply lines must be rotatably supported.
  • the air supply lines 12, 13 are connected to a known compressed air generator, not shown.
  • a valve 16, 17 is arranged in each of the two lines between the compressed air generator and the blown air nozzles 10, 11. With the valve, the blown air volume passing through to the blown air nozzles 10, 11 can be adjusted in order to enable both adaptation to single-layer webs of different thicknesses and to webs from several layers.
  • each air supply line 12, 13 could be assigned its own pump, which can be regulated with regard to the blown air volume.
  • a plurality of grooves 18, 19 are cut in the cutting cylinders 1, 2 and run in the circumferential direction.
  • the blowing air passes through the grooves approximately parallel to the running direction of the web 5 and thus forms air cushions on both sides of the web 5, which guide the cut products in the direction of the conveyor belt lines 6, 7.
  • the grooves 18, 19 are arranged in the area of the blowing air nozzles 10, 11.
  • cutting cylinders 20 can also be used, into which a spiral groove 21 for air guidance is cut.
  • suction nozzles 22, 23 are arranged between the deflection rollers 8, 9 for the conveyor belt lines 6, 7.
  • the suction nozzles 22, 23, again adjustable in their angular position, can be fastened by means of clamps 24, 25 to air ducts 26, 27.
  • the air discharge lines 26, 27 are connected to a common air-sucking pump.
  • each of the two air discharge lines can also be assigned its own suction pump.
  • the compressed air emerging from the blown air nozzles 10, 11 flows through the grooves 18, 19 and 21 and forms an air cushion behind the narrowest point between the cutting cylinders 2, 3. On the one hand, this prevents a leading edge of the web 5 from sticking to a cutting cylinder 2, 3. On the other hand, the web 5 is guided along the desired line between the conveyor belt lines 6, 7. If the web 5 consists of several layers, these are additionally held together.
  • the suction air nozzles 22, 23 counteract a possible tearing of the air cushion in that a largely rectilinear air flow is forced from the grooves 18, 19 of the cutting cylinders 2, 3 to the deflection rollers 8, 9.

Landscapes

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

Claims (5)

  1. Dispositif de coupe pour une plieuse d'une presse à imprimer, avec deux cylindres de coupe (1, 2) pour la bande de matériau (5) alimentée verticalement, et avec deux bandes transporteuses (6, 7), montées à la suite des cylindres, qui sont guidées sur des poulies de renvoi (8, 9) et transportent plus loin entre elles les produits coupés, ainsi qu'avec des buses soufflantes (10, 11) disposées de part et d'autre de la bande entrante (5) et dirigées vers la fente entre la bande (5) et le cylindre de coupe respectif (2, 3, 20), et avec des rainures (18, 19, 21) dans les cylindres de coupe (2, 3, 20) afin de laisser passer l'air soufflé parallèlement à la bande (5), caractérisé en ce que des buses aspirantes (22, 23) sont disposées entre les poulies de renvoi (8, 9) pour évacuer l'air passant par les rainures (18, 19, 21).
  2. Dispositif de coupe selon la revendication 1, caractérisé en ce que les rainures (18, 19) sont disposées en s'étendant dans la direction circonférentielle des cylindres de coupe (2, 3).
  3. Dispositif de coupe selon la revendication 1, caractérisé en ce que les rainures sont disposées en s'étendant en spirale tout autour du cylindre de coupe (20).
  4. Dispositif de coupe selon l'une quelconque des revendications précédentes, caractérisé en ce que les buses soufflantes (10, 11) sont disposées avec possibilité de réglage afin de modifier leur direction de soufflage.
  5. Dispositif de coupe selon l'une quelconque des revendications précédentes, caractérisé en ce que le volume d'air soufflé et/ou le volume d'air aspiré sont réglables.
EP90110234A 1989-06-01 1990-05-30 Dispositif de coupe pour une plieuse dans une presse Expired - Lifetime EP0400596B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3917845 1989-06-01
DE3917845A DE3917845A1 (de) 1989-06-01 1989-06-01 Schneidvorrichtung fuer ein falzwerk einer druckmaschine

Publications (3)

Publication Number Publication Date
EP0400596A2 EP0400596A2 (fr) 1990-12-05
EP0400596A3 EP0400596A3 (fr) 1991-06-05
EP0400596B1 true EP0400596B1 (fr) 1994-05-18

Family

ID=6381826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110234A Expired - Lifetime EP0400596B1 (fr) 1989-06-01 1990-05-30 Dispositif de coupe pour une plieuse dans une presse

Country Status (4)

Country Link
US (1) US5036737A (fr)
EP (1) EP0400596B1 (fr)
JP (1) JPH0336164A (fr)
DE (2) DE3917845A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7022057B2 (en) * 2000-12-20 2006-04-04 Water-Line Sa Device for manufacturing packing bags

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US5140880A (en) * 1991-05-08 1992-08-25 Littleton Industrial Consultants, Inc. Push-pull apparatus and method for web cutting and trim strip removal
US5533659A (en) * 1991-09-14 1996-07-09 Beloit Technologies, Inc. Dust removal system
US5379668A (en) * 1993-09-29 1995-01-10 Xerox Corporation Trimmer blower and high capacity waste bin
FR2733453B1 (fr) * 1995-04-28 1997-07-25 Heidelberg Harris Sa Plieuse comprenant un module additionnel delivrant des cahiers
DE19549845B4 (de) * 1995-06-24 2007-07-12 Heidelberger Druckmaschinen Ag Vorrichtung zur Erzielung einer einwandfreien Auflage eines Bedruckstoffes in einer Druckmaschine
US6327948B1 (en) 1995-09-26 2001-12-11 Esko Tuori Method and apparatus for cutting the edge of a moving paper web
EP0788878B1 (fr) * 1996-02-09 2000-05-17 Heidelberger Druckmaschinen Aktiengesellschaft Procédé et dispositif pour guider une bande entre deux cylindres d'une machine à imprimer
FR2751630B1 (fr) * 1996-07-23 1998-10-23 Heidelberg Harris Sa Dispositif de guidage de cahiers a la sortie d'un groupe de deux cylindres coupeurs d'une plieuse
JP3043710B2 (ja) 1997-08-04 2000-05-22 キヤノン株式会社 パネルを支持する支持構造、およびパネルと該パネルを支持する支持構造を有するパネル装置、および該パネル装置を用いた画像形成装置
US5988030A (en) 1997-09-19 1999-11-23 Kimberly-Clark Worldwide, Inc. Apparatus for penetrating a sheet material web carried on a fabric
ATE246555T1 (de) 2000-02-01 2003-08-15 Heidelberger Druckmasch Ag Vorrichtung zur entfernung von partikeln von materialbahnen
DE10043211A1 (de) * 2000-09-01 2002-03-14 Heidelberger Druckmasch Ag Einrichtung zur elektrischen Isolation rotierender Bauteile in Rotationsdruckmaschinen
DE10048386A1 (de) * 2000-09-29 2002-04-11 Heidelberger Druckmasch Ag Exemplarführung für flächige Exemplare in Falzapparaten
DE10107368A1 (de) * 2001-02-16 2002-08-29 Heidelberger Druckmasch Ag Vorrichtung zum Führen flächiger Exemplare in Falzapparaten
US6840616B2 (en) * 2001-03-29 2005-01-11 Scott Summers Air folder adjuster apparatus and method
DE10211309A1 (de) 2002-03-13 2003-09-25 Heidelberger Druckmasch Ag Schneidvorrichtung mit Entstaubungsvorrichtung im Falzapparat einer bahnverarbeitenden Druckmaschine
US6868785B2 (en) 2002-03-13 2005-03-22 Goss International Corporation De-Duster for a moving printing material web and cutting device, folder and printing press having the de-duster
DE202005021655U1 (de) * 2005-08-11 2009-04-09 Manroland Ag Schneidvorrichtung für Bedruckstoffe in einer Druckmaschine
US20070175346A1 (en) * 2006-02-02 2007-08-02 Goss International Americas, Inc. Reverse air flow web stabilizer
JP4800098B2 (ja) * 2006-04-25 2011-10-26 ブリヂストンサイクル株式会社 踏み脚付きスタンド
JP2008007294A (ja) 2006-06-30 2008-01-17 Komori Corp 折機
JP2009234761A (ja) * 2008-03-27 2009-10-15 Mitsubishi Heavy Ind Ltd シート排紙装置
US20110240706A1 (en) * 2010-03-30 2011-10-06 Brian Christopher Schwamberger Web diverting apparatus
US9902083B2 (en) 2010-09-30 2018-02-27 The Procter & Gamble Company Absorbent article substrate trim material removal process and apparatus
US9248989B2 (en) 2013-09-03 2016-02-02 Eastman Kodak Company Positive pressure web wrinkle reduction system
US9352923B2 (en) 2014-02-26 2016-05-31 Eastman Kodak Company Air shoe with roller providing lateral constraint
US9120634B1 (en) * 2014-02-26 2015-09-01 Eastman Kodak Company Media guiding system using bernoulli force roller
US9079736B1 (en) 2014-02-26 2015-07-14 Eastman Kodak Company Wrinkle reduction system using Bernoulli force rollers
CN105882117A (zh) * 2016-04-11 2016-08-24 贵阳职业技术学院 能防止凹印机生产线中分切辊卷入纸张的防卷结构
CN111347763A (zh) * 2020-03-21 2020-06-30 长兴创智科技有限公司 一种服装面料连续彩印工艺

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Publication number Priority date Publication date Assignee Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7022057B2 (en) * 2000-12-20 2006-04-04 Water-Line Sa Device for manufacturing packing bags

Also Published As

Publication number Publication date
EP0400596A2 (fr) 1990-12-05
US5036737A (en) 1991-08-06
DE3917845C2 (fr) 1992-11-05
JPH0336164A (ja) 1991-02-15
DE3917845A1 (de) 1990-12-06
EP0400596A3 (fr) 1991-06-05
DE59005707D1 (de) 1994-06-23

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