EP0780332B1 - Dispositif pour agir sur des feuilles dans un appareil de sortie de feuilles - Google Patents

Dispositif pour agir sur des feuilles dans un appareil de sortie de feuilles Download PDF

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Publication number
EP0780332B1
EP0780332B1 EP96117816A EP96117816A EP0780332B1 EP 0780332 B1 EP0780332 B1 EP 0780332B1 EP 96117816 A EP96117816 A EP 96117816A EP 96117816 A EP96117816 A EP 96117816A EP 0780332 B1 EP0780332 B1 EP 0780332B1
Authority
EP
European Patent Office
Prior art keywords
sheet
air
acting
sheets according
deformation
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
EP96117816A
Other languages
German (de)
English (en)
Other versions
EP0780332A2 (fr
EP0780332A3 (fr
Inventor
Richard Mack
Bernhard Waltenberger
Bernd Stephan
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 EP0780332A2 publication Critical patent/EP0780332A2/fr
Publication of EP0780332A3 publication Critical patent/EP0780332A3/fr
Application granted granted Critical
Publication of EP0780332B1 publication Critical patent/EP0780332B1/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
    • 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52—Stationary guides or smoothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for acting on sheets in one Sheet delivery one of the sheets optionally printing on one or two sides Printing machine, with a sheet tensioner, which has a first deformation area and has a second deformation area, according to the preamble of Claim 1.
  • This Sheet straightener has two supporting bodies that can be supplied with overpressure and one with Vacuum smoothing gap. None of that as a deformation area effective support body can be acted upon with suction air.
  • the bow straightener not integrated with its surface in an adjacent sheet conveying plane and is also not washed over by an air cushion.
  • DE 44 27 897 C1 also discloses a device for acting on one Bow. It is a sheet straightener for removing curls when printing on one side and a guide device for contact-free guidance of the sheets with double-sided printing intended.
  • the sheet straightener is stationary in relation to the machine frame the guideway of the guide device reset position attached and it a guide element is provided in the form of a plate which is used to cover the Sheet smoothers with double-sided pressure in the space between sheet guide and Bow straightener is movable.
  • an actuating cylinder unit is required, which shows the interchangeability of the straightener - about for cleaning purposes - disabled.
  • the sheet straightener forms a depression, a trough in the sheet conveying plane, which is responsible for the uniformity of the Bow promotion is not an advantage.
  • the invention has for its object a device for action Sheets in the sheet delivery either one-sided or two-sided printing press with a two deformation areas
  • a trouble-free sheet transport is guaranteed and at the one Lubricating the sheets in face and back printing operations is even more reliable than with existing such devices is avoided.
  • this object is achieved by a device with the features of claim 1 solved.
  • the device for acting on sheets in the sheet delivery of the sheets either one-sided or two-sided printing press, with one Bow tensioner, which has a first deformation area and a second is characterized in that that the sheet tensioner with its surface in an adjacent sheet conveying plane is integrated and with one-sided printing and perfecting Air cushion is washed over and that the first deformation area with suction air is acted upon.
  • the air is flushed in Build up an air cushion from one of the adjacent baffles Sheet conveying plane.
  • the adjacent baffles of the sheet conveying level are pressurized with low pressure air.
  • Another advantageous embodiment of the bow tensioner comprises arched executed deformation areas that are executed opposite to each other.
  • the deformation areas can be provided with individual air nozzles that are extend in a row across the width of the sheet boom.
  • One of Deformation areas of the sheet tensioner are subjected to suction air during the opposite second deformation area can be acted upon by compressed air.
  • the Pressure level for suction or blowing air for the two deformation areas mentioned the sheet tensioner is slightly higher than the pressure level in the Sheet conveying plane.
  • the sheet tensioner can be replaced more easily Design with snap locks, with which he can be equipped can be locked in or removed from the side walls in a few simple steps is.
  • Snap locks is a simple pivoting or removing the Bow tensioners guaranteed in just a few simple steps.
  • the sheet tensioner is in the direction of sheet travel viewed first deformation area of the sheet tensioner with suction air, during the second deformation region of the Blown air is applied to the sheet tensioner.
  • a sheet tensioner 6 the in the sheet conveying plane, the guide plates 1 and 2 are added is.
  • the parts of the sheet conveying level 1 or 2 are with a Large number of air jets directing in different directions Air nozzles 3 provided and formed from individual profiles 14, limit the cavities 4 and 5 respectively.
  • a sheet tensioner 6 is mounted between an edge 15 of the Sheet conveying plane 1 and the opposite edge of the Sheet conveying plane 2. This is by means of 7 and 8 designated locking bolts or Mounts in the side walls of the Sheet delivery of the printing press.
  • the sheet tensioner 6 comprises one in the sheet running direction 18 seen first deformation area 11 and a second Deformation area 12, both of which have a curved surface exhibit.
  • the bow tensioner 6 is of two Boundary walls 10 laterally limited. With reference number 9 is a connection for the air supply to the sheet tensioner designated. Between the surfaces that run down the deformation areas 11 and 12 have remained a gap, through which the deformation areas 11 and 12 from each other are separated.
  • FIG. 2 is a plan view of the between the Baffles 1 and 2 shown sheet tensioner 6 shown.
  • first baffle 1 In in The sheet running direction 18 seen first baffle 1 are individual nozzles symmetrical to the center of the conveying plane 21 arranged.
  • reference number 3 is a nozzle group referred to, from the air jets in a lateral direction exit oriented.
  • the air nozzles can be perpendicular to the Delivery level center 21 or in 15 °, 30 °, 45 ° orientation or any blowing angle orientation steps gradually be twisted to each other.
  • At 20 there is a group referred to by air vents that strictly laterally oriented Air jets generated.
  • At the front edge of the baffle 1 is one of the first deformation area 11 of the Bow tensioner 6 opposite first row of nozzles 16 educated. From this can with pure face printing and at Fine and reverse printing operation - so if the contact of the already printed underside with the stationary surfaces of the bow tensioner 6 is to be avoided - the air flow emerge that the air cushion over the Deformation areas 11 and 12 of the sheet tensioner 6 are washed in. Since it can also be turned by turning corners in straight printing Lubrication can occur by washing in an air cushion useful in this mode too.
  • the air cushion that passes through the first row of nozzles 16 is generated, extends up to the baffle 2, on the through the side blowing nozzles 19, which are there with blowing air of a lower pressure level side-tightening effect on the sheets to be conveyed 13 is exercised.
  • sheet tensioners 6 At the between the edges of the Sheet guide plates 1 and 2 are included sheet tensioners 6 the deformation areas 11 and 12 seen from above shown. These are each with two brackets 7 and 8 in the side walls 17 of the sheet delivery of the printing press stored.
  • the brackets can be fitted with spring catch bolts be, by simply pulling the bolt inwards Release of the bow tensioner 6 takes place.
  • the two sheet guide plates 1 and 2 are in a variety air nozzles 3 oriented in different directions. Both baffles 1 and 2 are each with a blower 26 and 29 respectively provided, thereby entering the cavities below this Baffles low pressure air of a pressure level, for example between 5 and 20 mbar is introduced. Are against the deformation areas 11, 12 of the sheet tensioner 6 with blowing or Suction air at a higher pressure level.
  • the in Seen the sheet running direction 18 first Deformation area 11 is with suction air with a negative pressure of about 80 mbar, for example, and is in its lower area is provided with a row of suction nozzles 23.
  • the second opposite the first deformation region 11 Deformation area 12 is with a blow nozzle row 22 provided and with blowing air of a pressure level between 100 and 250 mbar applied.
  • the first deformation area is 11 consequently with a vacuum source 28, the second Deformation area 12 connected to a blower.
  • the application of the nozzle row 22 or 23 in the pure Fine pressure operation with blowing or suction air is not mandatory required, but can be done if desired in order to lubricate critical grammages - should it be too Turning corners come - to be avoided.
  • Fig. 4 is the process of the Bow tightening shown at passage of the bow tensioner.
  • an air cushion 31 is placed under the straight area of the bend 13 over the baffles 1 and 2 generated.
  • the arch 13 is tightened by deformation of the sheet 13 by blowing air 25 from above, if this is located above the gusset of the gap 24.
  • the arch 13 hugs the contours of the first and second Deformation area 11, 12 of the sheet tensioner 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Advancing Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Discharge By Other Means (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (12)

  1. Dispositif pour agir sur les feuilles dans un receveur de feuilles d'une machine à imprimer imprimant les feuilles sélectivement d'un côté ou des deux côtés, comprenant un tendeur de feuille (6) qui comporte une première zone de déformation (11) et une deuxième zone de déformation (12),
       caractérisé
       en ce que la surface du tendeur de feuille (6) est intégrée dans un plan adjacent de transport des feuilles (1, 2) et ce tendeur est balayé par un coussin d'air (31) en impression recto et en impression recto et verso et en ce que la première zone de déformation (11) peut être balayée par de l'air d'aspiration.
  2. Dispositif pour agir sur des feuilles selon la revendication 1,
       caractérisé
       en ce que les plans adjacents (1, 2) de transport des feuilles sont équipés de buses d'air (3, 16, 19, 20).
  3. Dispositif pour agir sur des feuilles selon la revendication 2,
       caractérisé
       en ce que les plans adjacents (1, 2) de transport des feuilles peuvent être balayés par de l'air sous basse pression.
  4. Dispositif pour agir sur des feuilles selon la revendication 1,
       caractérisé
       en ce que le tendeur de feuille (6) comprend des attaches (7, 8).
  5. Dispositif pour agir sur des feuilles selon la revendication 1,
       caractérisé
       en ce que les zones de déformation (11, 12) sont opposées.
  6. Dispositif pour agir sur des feuilles selon la revendication 1,
       caractérisé
       en ce que les zones de déformation (11, 12) sont équipées de buses d'air (22, 23).
  7. Dispositif pour agir sur des feuilles selon la revendication 4,
       caractérisé
       en ce que la deuxième zone de déformation (12) que comporte le tendeur de feuille (6) peut être balayée par de l'air comprimé.
  8. Dispositif pour agir sur des feuilles selon la revendication 7,
       caractérisé
       en ce que le niveau de pression est plus bas dans le plan (1, 2) de transport des feuilles que le niveau de pression de l'air d'aspiration qui règne dans la première zone de déformation (11) ou celui de l'air d'insufflation qui règne dans la deuxième zone de déformation (12).
  9. Dispositif pour agir sur des feuilles selon la revendication 6,
       caractérisé
       en ce que les buses d'air (23) sont prévues dans la partie inférieure de la première zone de déformation (11) que comporte le tendeur de feuille (6).
  10. Dispositif pour agir sur des feuilles selon la revendication 4,
       caractérisé
       en ce que les attaches sont des fermetures à déclic (7, 8) chargées par ressort et à l'aide desquelles le tendeur de feuille (6) peut être immobilisé dans les flasques latéraux (17) de la machine à imprimer.
  11. Dispositif pour agir sur des feuilles selon la revendication 1,
       caractérisé
       en ce qu'une circulation d'air en sens inverses est générée en impression recto et en impression recto et verso dans le tendeur de feuille (6) entre les zones de déformation (11, 12) par alimentation des rangées de buses d'air (22, 23) en air d'aspiration et en air d'insufflation.
  12. Dispositif pour agir sur des feuilles selon la revendication 7,
       caractérisé
       en ce que la première zone de déformation (11) vue dans le sens (18) de transport des feuilles est balayée par de l'air d'aspiration et la deuxième zone de déformation (12) par rapport au sens (18) de transport des feuilles peut être balayée par de l'air d'insufflation.
EP96117816A 1995-12-20 1996-11-07 Dispositif pour agir sur des feuilles dans un appareil de sortie de feuilles Expired - Lifetime EP0780332B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19547546A DE19547546A1 (de) 1995-12-20 1995-12-20 Vorrichtung zur Einwirkung auf Bogen in einem Bogenausleger
DE19547546 1995-12-20

Publications (3)

Publication Number Publication Date
EP0780332A2 EP0780332A2 (fr) 1997-06-25
EP0780332A3 EP0780332A3 (fr) 1998-03-25
EP0780332B1 true EP0780332B1 (fr) 1999-09-15

Family

ID=7780636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117816A Expired - Lifetime EP0780332B1 (fr) 1995-12-20 1996-11-07 Dispositif pour agir sur des feuilles dans un appareil de sortie de feuilles

Country Status (5)

Country Link
US (1) US5832826A (fr)
EP (1) EP0780332B1 (fr)
JP (1) JPH09174816A (fr)
AT (1) ATE184570T1 (fr)
DE (2) DE19547546A1 (fr)

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AU703647B1 (en) * 1998-06-16 1999-03-25 Qi Press Controls Holding Bv Device to compensate for print misregister due to paper distortion on web offset printing presses
DE29817879U1 (de) 1998-10-07 1998-12-17 MAN Roland Druckmaschinen AG, 63075 Offenbach Bogenführungseinrichtung für einseitig oder beidseitig bedruckte Bogen in einer Druckmaschine
US6937330B2 (en) 1999-04-23 2005-08-30 Ppd Biomarker Discovery Sciences, Llc Disposable optical cuvette cartridge with low fluorescence material
US6687395B1 (en) 1999-07-21 2004-02-03 Surromed, Inc. System for microvolume laser scanning cytometry
DE10137212A1 (de) * 2000-08-31 2002-05-23 Heidelberger Druckmasch Ag Glättvorrichtung für flächige Bedruckstoffe
US6787761B2 (en) 2000-11-27 2004-09-07 Surromed, Inc. Median filter for liquid chromatography-mass spectrometry data
US6890409B2 (en) * 2001-08-24 2005-05-10 Applera Corporation Bubble-free and pressure-generating electrodes for electrophoretic and electroosmotic devices
US6873915B2 (en) 2001-08-24 2005-03-29 Surromed, Inc. Peak selection in multidimensional data
US20030078739A1 (en) * 2001-10-05 2003-04-24 Surromed, Inc. Feature list extraction from data sets such as spectra
US7144106B2 (en) 2001-10-17 2006-12-05 Seiko Epson Corporation Fixed material transportation apparatus and liquid fixing apparatus using the transportation apparatus
EP1304228B1 (fr) * 2001-10-17 2007-06-13 Seiko Epson Corporation Appareil de transport de support d'enregistrement et imprimante
US6989100B2 (en) 2002-05-09 2006-01-24 Ppd Biomarker Discovery Sciences, Llc Methods for time-alignment of liquid chromatography-mass spectrometry data
US7248360B2 (en) * 2004-04-02 2007-07-24 Ppd Biomarker Discovery Sciences, Llc Polychronic laser scanning system and method of use
US7419462B1 (en) * 2005-06-13 2008-09-02 Dixie Consumer Products Llc Pressware die set with pneumatic blank feed
JP2011519796A (ja) 2008-03-11 2011-07-14 コアフロー リミテッド 平坦な対象物の支持を局所的に制御するための方法およびシステム
US9889995B1 (en) * 2017-03-15 2018-02-13 Core Flow Ltd. Noncontact support platform with blockage detection

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Also Published As

Publication number Publication date
ATE184570T1 (de) 1999-10-15
DE59603062D1 (de) 1999-10-21
DE19547546A1 (de) 1997-07-03
US5832826A (en) 1998-11-10
JPH09174816A (ja) 1997-07-08
EP0780332A2 (fr) 1997-06-25
EP0780332A3 (fr) 1998-03-25

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