EP1049584A1 - Procede et dispositif pour empecher une propagation incontrolee de poudre dans une machine a imprimer - Google Patents

Procede et dispositif pour empecher une propagation incontrolee de poudre dans une machine a imprimer

Info

Publication number
EP1049584A1
EP1049584A1 EP99908798A EP99908798A EP1049584A1 EP 1049584 A1 EP1049584 A1 EP 1049584A1 EP 99908798 A EP99908798 A EP 99908798A EP 99908798 A EP99908798 A EP 99908798A EP 1049584 A1 EP1049584 A1 EP 1049584A1
Authority
EP
European Patent Office
Prior art keywords
air
powder
sheet
housing
empty
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.)
Granted
Application number
EP99908798A
Other languages
German (de)
English (en)
Other versions
EP1049584B1 (fr
Inventor
Hans-Peter Koch
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 EP1049584A1 publication Critical patent/EP1049584A1/fr
Application granted granted Critical
Publication of EP1049584B1 publication Critical patent/EP1049584B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/0443—Drying sheets, e.g. between two printing stations after printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/06—Powdering devices, e.g. for preventing set-off
    • 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
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/245—Air blast devices
    • B65H29/246—Air blast devices acting on stacking devices
    • B65H29/247—Air blast devices acting on stacking devices blowing on upperside of the sheet

Definitions

  • the invention relates to a method and a device for preventing an uncontrolled spread of powder in a printing press.
  • the invention relates in particular to a method in which sheets printed in a sheet-fed printing machine are conveyed by means of a sheet conveying device through a sheet delivery via a sheet deposit stack and thereby dusted with a powder and in which an uncontrolled spread of excess powder is prevented, and a device for preventing an uncontrolled
  • the invention further relates to a sheet delivery for a sheet printing machine and a sheet printing machine with such a device.
  • the paper sheets printed on one or both sides are usually conveyed by a chain conveyor of the paper or sheet delivery after they have passed through the printing units of the printing machine, i.e. a chain conveyor with two parallel chains connected by delivery gripper systems or sheet grippers and transported within a housing enclosing the sheet delivery and the printing units of the printing press via a sheet stack, on which they are then placed one above the other. Since the printing ink is not yet completely dry when the sheets are stacked on top of one another, most sheetfed offset printing presses on the market dust at least one surface of each sheet before placing them on the stack with a powder which is applied to the printed areas of the sheet
  • CONFIRMATION COPY Sheet of paper sticks and prevents it from being deposited, ie stuck together in the sheet stack.
  • Fine powdered potato starch or other powdered starch products are usually used as the powder.
  • a so-called powder device or another is used to apply the powder
  • Pollination device which is usually arranged in an intermediate space between the leading conveying strand transporting the sheets and the returning empty strand of the chain conveyor and dusting the sheets transported past on the lower conveying strand of the chain conveyor from above with the powder.
  • High-speed sheet-fed offset printing presses for printing long runs such as the sheet-fed offset printing presses sold under the name Heidelberg Speedmaster by Heidelberger Druckmaschinen AG, are usually equipped with a high-stack sheet delivery in order to be able to stack more sheets.
  • the conveyor run of the chain conveyor first extends obliquely upwards and is then deflected into the horizontal to accommodate the printed ones
  • the dusting device is usually arranged there shortly before the upper end of the inclined section of the conveyor run in the space between it and the empty run of the chain conveyor.
  • US Pat. No. 5,265,563 proposes a suction hood which is arranged above the sheet stack and a sheet outlet opening and serves to extract powder-laden air upward through the empty strand in order to then to clean them.
  • some of the powder-contaminated air is entrained by the suction as it passes through the empty strand and flows along the empty strand towards the printing press.
  • Sheet printing machine in the housing of which devices are provided in the vicinity of the powder dusting device above the conveying strand in order to suck off excess powder and thus prevent its uncontrolled spreading.
  • Such devices suck off a large part of the applied powder immediately, but this often has the consequence that the operating personnel increases the powder supply and thus more powder is consumed.
  • the problem of powder spreading through an air suction inside the housing is not solved.
  • DE AS 2 148 757 discloses a sheet delivery of a printing press, in which a cleaning device is provided along an upper horizontal section of the empty run of a sheet conveyor, said cleaning device comprising a housing, a plurality of brushes arranged in the housing and a suction device around which the brushes pass Vacuum powder cleaned from the chains and gripper systems.
  • a cleaning device is provided along an upper horizontal section of the empty run of a sheet conveyor, said cleaning device comprising a housing, a plurality of brushes arranged in the housing and a suction device around which the brushes pass Vacuum powder cleaned from the chains and gripper systems.
  • the cleaning device described is still suitable for transporting air contaminated with powder in the direction of the printing press, since there are wide open flow cross sections both between the housing of the cleaning device and the adjacent walls of the sheet delivery and also inside the housing on both sides of the brushes, which allow powder-laden air to pass through along the movement path of the empty strand.
  • the invention has for its object to provide a method and a retrofittable and / or factory-assembled device of the type mentioned, which enables a reduction in dust pollution in the vicinity of the printing press during printing and largely the formation of powder deposits within the housing prevented.
  • a preferred embodiment of the invention therefore provides that any flow path along the movement path of the empty run through which powder-laden air can flow from the free end of the sheet delivery to the printing press is blocked at least at one point between the free end of the delivery and the printing press thus the formation of an air flow running in the direction of the printing press and thus a transport of powder in it To prevent air flow to the press.
  • it is necessary to substantially completely block the entire free flow cross-section between an upper wall of the housing, the two side walls of the housing and a partition or the like arranged in the space between the empty strand and the conveying strand at the point of interruption, so that a passage of powder-contaminated Air is almost completely prevented by this section of the flow path.
  • the air flow is interrupted as close as possible to the free end of the sheet delivery, i.e. Appropriately in an upper horizontal section of the sheet delivery and preferably above a drive shaft of a lifting mechanism for the
  • Sheet storage stack where there is enough space for the required facilities. Since the drive shaft rotates very slowly, it can also serve as a support or support for some of the facilities.
  • the air flow can be interrupted by pneumatic and / or mechanical means, a combination being preferred.
  • air is preferably sucked out of the housing at the point of interruption and / or a stream is cleaner, i.e. Do not feed air contaminated with powder into the housing of the sheet delivery in such a way that the flow path is blocked by an air curtain or air flow which penetrates the empty strand and is sufficiently wide and deep to allow powder-laden air to pass between the upper wall of the housing, the two To prevent side walls of the housing and the partition wall or the like arranged between the empty strand and the conveyor strand.
  • the devices used to interrupt the air flow preferably comprise an air supply device which draws in air which is sucked in from the environment and is not contaminated with powder conducts into the housing in such a way that it flows vertically through the empty strand transversely to the direction of movement thereof, and / or an air suction device which sucks air out of the flow path transversely to the direction of movement of the empty strand, preferably opposite the air supply device, together with at least part of the introduced air to suck off the powder showered from the chains and bow grippers of the conveying device after it has passed through the flow path and expediently to clean any powder carried in a downstream separator.
  • an air supply device which draws in air which is sucked in from the environment and is not contaminated with powder conducts into the housing in such a way that it flows vertically through the empty strand transversely to the direction of movement thereof
  • an air suction device which sucks air out of the flow path transversely to the direction of movement of the empty strand, preferably opposite the air supply
  • the supplied air is preferably directed into the housing from above and sucked off below the empty strand in order to discharge showered powder in the direction of gravity.
  • a reverse arrangement is also conceivable.
  • several brushes are preferably provided in the direction of movement of the empty strand in front of the air supply device, which extend over the entire width of the existing flow path and whose bristles protrude from above and below into the movement path of the empty strand and touch there or overlap so as to block the flow path over its entire height and between the individual bow grippers and at the same time clean the bow grippers and chains from adhering powder.
  • the cleaning of the chains and sheet grippers is also important for preventing the powder from spreading, since powder carried by the chain conveyor and later released by vibrations or the like is deposited in the housing of the sheet delivery and, particularly in the vicinity of a last printing station of the printing machine, increases wear sensitive components and poor print quality.
  • air from the environment or atmosphere is blown from above through the empty strand into the housing of the sheet delivery and at least some of the air blown in below the empty strand is sucked off again, so that powder-loaded particles which have passed through the brushes are sucked out again Air is entrained downwards by the air supplied from above and is sucked off below the empty strand together with the powder loosened by the brushes from the chain conveyor and / or powder showered by the air injection.
  • a further preferred embodiment of the invention provides that in the area of the interruption point or in the direction of movement of the empty run behind it, air not contaminated with powder is fed into the housing from the outside.
  • the air supply and possibly the air extraction in the area of the interruption point can also be set such that the quantity of air supplied is greater than the quantity of air extracted, in order to avoid the creation of a negative pressure.
  • the air suction generated by the empty run can be used to, if necessary, this air together with the injected air deflected at the top of a suction and air deflecting device, which also acts as a partition, above the air
  • This air which is not contaminated with powder, then forms an air cushion between the dusting device and the empty strand as well as between the dusting device and the printing press, which also helps to prevent the powder from spreading close to the printing press.
  • air swirls are formed on the underside of the air cushion, on the underside of which fresh air flows back towards the free end of the delivery. This in turn causes part of the whirled up powder to be directed between the dusting device and the suction device to one or more suction openings at the rear edge of the suction device, where it can be suctioned off.
  • FIG. 2 an enlarged, partially sectioned side view of a sheet delivery somewhat modified compared to FIG. 1;
  • FIG. 3 shows a perspective view of a somewhat shorter sheet delivery according to the invention with the housing removed and without an air supply device;
  • FIG. 4 a top view of a combined suction and air deflection trough shown in FIGS. 2 and 3;
  • Fig. 5 is a sectional view of the suction and air deflection tub along the line V-V of Fig. 4;
  • FIG. 7 a longitudinal side view of the nozzle box from FIG. 6;
  • FIG. 8 an end view of the nozzle box from FIG. 6.
  • paper sheets are successively by means of an automated sheet feeder 4 from a paper stack 8 arranged in a sheet-fed system 6 of the printing machine 2 to a feed drum 10 of a first
  • Delivery gripper systems 18 of a chain conveyor 20 of a sheet delivery 22 of the printing press 2 take over the printed sheets from an impression cylinder 16 of the second printing unit 14 and transport them through a housing 24 of the sheet delivery 22 to a sheet storage stack 26, on which the sheets are then placed one above the other.
  • the chain conveyor 20 essentially consists of two parallel chains (not shown) guided in opposite lateral guide rails 28 (FIG. 3), which are connected at regular intervals by the gripper systems 18, which are also referred to as sheet grippers.
  • the chain conveyor 20 has a lower, the sheet transporting conveyor strand (leading system) 30, which moves obliquely upwards from the two sprockets 31 of a delivery drum 32 and is then deflected into the horizontal before two drive sprockets 34 at the free end of the Sheet delivery 22 reached.
  • Its upper empty run (return system) 36 moves horizontally in the direction of the printing press 2 from the chain wheels 34 before it is deflected obliquely downwards and returned to the delivery drum 32.
  • each sheet After delivery to the sheet gripper 18, each sheet is moved in the direction of movement of the conveyor run 30 by sheet guide plates 38 11
  • a powder apparatus 50 is arranged above the same in the space 52 between the conveyor run 30 and the empty run 36.
  • the powder apparatus 52 dustes the upper side of the pressurized sheets held by the sheet grippers 18 of the conveying strand 30 with a fine powdered starch powder to prevent the sheets from sticking together (applying)
  • the powder apparatus 50 essentially consists of a tube 54 which runs transversely to the direction of movement of the chain conveyor 20 through the intermediate space 52 and has a plurality of powder outlet slots on its underside.
  • the starch powder is supplied by means of a blower (not shown) connected to the pipe 54, the dosage depending on the size and color intensity of the printed areas.
  • a blower not shown
  • the paper sheets carried by the chain conveyor 20 are deflected from the inclines into the horizontal in the direction of movement of the conveyor run 30 directly behind the powder apparatus 50. This leads to the whip or flag effect already mentioned at the outset, that is to say, the back edges of the paper sheets 1 rock up or flutter. This in turn 12
  • a combined suction and air deflection tray 56 which can be acted upon from above through the empty run 36 with fresh air, is arranged in the intermediate space 52 between the conveyor run 30 and the empty run 36.
  • the fresh air which is not contaminated with powder, is supplied through a nozzle box 58, which is inserted above the powder suction and air deflecting tub 56 into the upper wall of the housing 24, which is closed in the area of the nozzle box 58, and blows the fresh air downwards in the direction of the printing press interrupting the flow of powder-laden air, thus preventing the powder from being carried in the direction of the printing press.
  • the powder suction and air deflection trough 56 and the nozzle box 58 are arranged behind the point at which the conveying strand 30 is deflected into the horizontal, in the embodiment shown in FIGS. 1 and 2 in the direction of movement of the conveying strand 30 in front of the sheet outlet opening 44 and the Display fans 46 arranged above are arranged, while in the exemplary embodiment shown in FIG. 3 with a shorter sheet delivery 22 they are located directly above them. 13
  • the suction and air deflection tray 56 is carried by a transverse drive shaft 60 of the lifting mechanism 48 arranged in the intermediate space 52 between the empty strand 36 and the conveying strand 36.
  • the suction and air deflection tray 56 essentially consists of a thin-walled flat housing 62.
  • the housing 62 extends below the lateral guides of the empty run 36 over the entire inside width of the housing 24 Sheet delivery 22 and forms a continuous partition between a lower flow path running along the conveyor strand 30 and a movement path of the empty strand 36 arranged above it. This partition prevents the passage of air from top to bottom and vice versa over its entire extent.
  • the housing 62 has an upper housing wall 64 which is kinked several times in the direction of movement of the chain conveyor 20, so that two flat troughs 66 are formed which are separated from one another by an elevation 68 arranged between them.
  • the upper housing wall 64 is further provided with rows of suction slots 70 arranged at a distance from one another. While adjacent middle rows of suction slots 70 are located at the deepest points of the troughs 66, outer rows are in the immediate vicinity of the opposite
  • Each of the rows of slots is connected by a suction channel 72 arranged inside the housing 62, each with a suction nozzle 74, which are arranged on one of the outer edges.
  • the suction nozzles 74 are each connected via a directional and pressure control valve to control the extracted air quantities and the negative pressure applied to a suction fan, which is preceded by a dust separator with a centrifuge and a fine filter (not shown).
  • a dust separator with a centrifuge and a fine filter (not shown).
  • a cleaning brush 76 which extends over the entire inside width of the housing 62, its bristles 78 pointing upwards and slightly angled in the direction of movement of the empty strand 36 extending into the movement path of the empty strand 36 .
  • the brush 76 is located in that trough 66 which is first swept by the empty run 36 of the chain conveyor 20 which passes over the housing 62.
  • the housing 62 further has a lower housing wall 80, which is provided between the two troughs 66 and below the elevation 68 of the upper housing wall 64 with an upwardly recessed bulge 82, the cross section of which has the shape of an inverted U.
  • the housing wall 80 encloses the transverse drive shaft 60, which is arranged between the empty strand 36 and the conveying strand 30 and the upper side of which supports the housing 62. To reduce the friction between the slow-running drive shaft 60 and the lower housing wall 80, this is in the area of
  • suction and air deflection tray 56 is supported on the drive shaft 60, so that it only has to be fastened to opposite side cheeks of the chain conveyor 20 with a few fastening screws in order to hold them in position.
  • the nozzle box 58 serving as the air supply device consists of a flat metal housing which is provided on its flat underside facing the empty run 36 with a multiplicity of air outlet nozzles 86 through which the sheet grippers passing under the nozzle box 58 18 of the chain conveyor 20 can be showered with air.
  • Air outlet nozzles 86 are arranged in parallel rows, 15
  • An edge 88 of a smaller lower part of the nozzle box 58 adjoining the flat underside is chamfered and is provided on its narrower end faces with a row of nozzle openings 90, which serve to shower the chains of the chain conveyor 20.
  • the larger upper part of the nozzle box 58 is provided with a circumferential shoulder, the narrow ends of which are on the side cheeks of the
  • a brush 92 is attached to the underside of the shoulder, the bristles 94 of which extend down into the path of the empty strand 36.
  • the brush 92 also extends over the entire clear width of the chain arm or the housing 24 and is in
  • the suction and air deflection trough 56 in the space between the empty run 36 and the conveying run 30 and the two side walls of the sheet delivery 22 carrying the guides 28 is below the nozzle box 58 a flow path is limited, which is completely blocked transversely to the direction of movement of the empty run 36 by the brushes 76, 92 and an air curtain flowing from the nozzle box 58 to the suction and air deflection trough 56, the limitations of the flow path preventing the powder-laden air flow from escaping sideways.
  • Pressurized air with a pressure between 1.5 and 3.5 bar is applied to the nozzle box 58 by two air supply nozzles 96 on the top of the nozzle box 58, each of which communicates with a part of the nozzle rows 86.
  • the amount of air supplied is dimensioned such that only a part can be sucked in again through the suction slots 70 of the suction and air deflection tub 56, while the rest 16
  • Air at the top of the suction and air deflection tray 56 is deflected towards the printing press.
  • the air is supplied at a relatively low pressure of 1.5 to 2 bar, while the air pressure is increased to 3 to 3.5 bar during a subsequent cleaning of the sheet delivery 22.
  • Directional control valves in the air supply lines (not shown) leading to the air supply ports 96 allow a clocked air supply or an optional air supply to each of the two air supply ports 96 or to both together, i.e. to a part of each of the nozzles 86 or to all of the nozzles 86.
  • the air blown down from the nozzle box 58 flows past the sheet grippers 18 and past the chains of the chain conveyor 20, and showered them with clean fresh air, adhering powder particles being carried downward, so that they did not move any further from the empty run 36 in the direction of the printing press 2 can be transported.
  • the downward flow of air in this area of the sheet delivery 22 forms a barrier between the closed upper side of the housing, the side walls of the sheet delivery 22 and the suction and air deflecting tub 56 on the underside, which prevents powder-laden air that has passed through the brushes 76, 92 from passing along of the empty run 36 flows in the direction of the printing press 2.
  • the sheet delivery 22 shown in FIG. 2 is at the upper end of the oblique section of the housing 24 in the upper wall of the 18th
  • a ventilation grille 95 is arranged, through which air not contaminated with powder from the surroundings of the sheet delivery 22 can be sucked into the interior of the housing 24. Most of the air sucked in is carried along by the suction of the empty run 36 in the direction of the printing press 2, while a smaller part flows downward behind the air suction pipe 75, which acts as an air switch, and down along the powder machine 50 on the press side.
  • an air inlet opening arranged above the suction and air deflection trough 56 (not shown) can also be provided.
  • air can also be sucked out in front of the brushes 76, 92, so that a smaller part of the air supplied behind the brushes 76, 92 is sucked forward through the brushes 76, 92 by a negative pressure which arises there.
  • the brushes 76, 92 can also be omitted and the air flow running along the empty run 36 can be interrupted solely by supplying and / or extracting air.
  • the fresh air cushion accelerates between the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Printing Methods (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

L'invention concerne un procédé d'impression de feuilles, selon lequel des feuilles imprimées dans une machine à feuilles (2) sont transportées au moyen d'un dispositif de transport de feuilles (20) à travers une sortie de feuilles (22) située au-dessus d'une pile de sortie (26), et sont poudrées. Ce procédé permet d'éviter une propagation incontrôlée de poudre en excès. L'invention concerne en outre un procédé pour empêcher une propagation incontrôlée de poudre dans un boîtier (24) d'une sortie de feuilles (22) d'une machine à feuilles (2), ledit boîtier entourant une unité de transport (20) pour le transport des feuilles imprimées au-dessus d'une pile de sortie (26) et entourant une unité de poudrage (50) pour poudrer les feuilles imprimées. L'invention vise à réduire la formation de poussière due à la propagation de poudre en excès, à proximité de la machine à feuilles (2), et à empêcher dans une large mesure la formation de dépôts de poudre à l'intérieur du boîtier (24). A cet effet, un écoulement d'air chargé de poudre, circulant dans le boîtier (24) de la sortie de feuilles (22) le long d'un brin vide (36) de l'unité de transport (20) en direction de la machine à feuilles (2), est interrompu en au moins un point situé entre l'extrémité libre de la sortie de feuilles (22) et la machine à feuilles (2), pour empêcher le transport de poudre entraînée, en direction de la machine à feuilles (2).
EP99908798A 1998-01-20 1999-01-19 Procede et dispositif pour empecher une propagation incontrolee de poudre dans une machine a imprimer Expired - Lifetime EP1049584B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19801949 1998-01-20
DE19801949 1998-01-20
DE19852714 1998-11-16
DE19852714 1998-11-16
PCT/EP1999/000271 WO1999037484A1 (fr) 1998-01-20 1999-01-19 Procede et dispositif pour empecher une propagation incontrolee de poudre dans une machine a imprimer

Publications (2)

Publication Number Publication Date
EP1049584A1 true EP1049584A1 (fr) 2000-11-08
EP1049584B1 EP1049584B1 (fr) 2003-01-15

Family

ID=26043223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99908798A Expired - Lifetime EP1049584B1 (fr) 1998-01-20 1999-01-19 Procede et dispositif pour empecher une propagation incontrolee de poudre dans une machine a imprimer

Country Status (5)

Country Link
US (1) US6802256B1 (fr)
EP (1) EP1049584B1 (fr)
JP (1) JP4436564B2 (fr)
DE (2) DE19859246A1 (fr)
WO (1) WO1999037484A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859246A1 (de) * 1998-01-20 1999-07-22 Koch Hans Peter Bogenoffsetdruckverfahren und Bogenoffsetdruckmaschine
DE10161267B4 (de) * 2001-12-13 2007-08-09 Koenig & Bauer Aktiengesellschaft Einrichtung zur Puder- und Warmluftabsaugung im Ausleger einer Bogenrotationsdruckmaschine
DE10161269B4 (de) * 2001-12-13 2005-03-17 Koenig & Bauer Ag Ausleger einer Bogenrotationsdruckmaschine
JP4096624B2 (ja) * 2002-05-23 2008-06-04 コニカミノルタホールディングス株式会社 用紙スタッカー
DE10227242A1 (de) * 2002-06-19 2004-02-05 Koenig & Bauer Ag Anordnung zum Pudern von Flächengebilden in einer Druckmaschine
DE10316472A1 (de) 2003-04-09 2004-10-28 Heidelberger Druckmaschinen Ag Verfahren zum Trocknen einer Druckfarbe auf einem Bedruckstoff in einer Druckmaschine und Druckmaschine
JP5595823B2 (ja) 2010-07-30 2014-09-24 富士フイルム株式会社 画像形成方法及び画像形成装置
JP5202663B2 (ja) 2011-02-21 2013-06-05 富士フイルム株式会社 マット剤塗布装置およびインクジェット記録装置
JP7139591B2 (ja) * 2017-10-05 2022-09-21 セイコーエプソン株式会社 液体噴射装置、および液体噴射装置のメンテナンス方法
JP2022112986A (ja) * 2021-01-22 2022-08-03 株式会社リコー シート積載装置、印刷装置

Family Cites Families (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1360753A (en) * 1918-11-25 1920-11-30 Johnson Perfection Burner Comp Burner
US1944946A (en) * 1931-08-11 1934-01-30 Anton G E Nordquist Static eliminator and ink drier for printing presses
GB1052362A (fr) * 1964-08-28
US3399872A (en) * 1967-05-18 1968-09-03 Henry R. Dickerson Jet manifold ink oxidizer
SE319969B (fr) * 1969-02-14 1970-01-26 Svenska Flaektfabriken Ab
US3717408A (en) * 1970-08-19 1973-02-20 Gaf Corp Flash flat-bed wet copier
US3677224A (en) * 1970-09-18 1972-07-18 Electroprint Inc Toner charging and feeding machine
DE2148757B1 (de) * 1971-09-30 1972-09-07 Roland Offsetmaschf Reinigungsgeraet fuer eine Bogenauslegevorrichtung
US3881653A (en) * 1971-12-22 1975-05-06 Vitek Research Corp Powder deposition system
US3915737A (en) * 1973-11-21 1975-10-28 Gen Tire & Rubber Co Method and apparatus for removing foreign particles from a calendered sheet by neutralization of static on the sheet
US3882818A (en) * 1973-12-17 1975-05-13 Electro Sprayer Systems Inc Powder collector construction
US4040616A (en) * 1976-01-14 1977-08-09 Xerox Corporation Sheet turn around/inverter
US4212266A (en) * 1978-12-21 1980-07-15 The Continental Group, Inc. Catcher and return device for oversprayed powder
US4207833A (en) * 1978-12-28 1980-06-17 Protectaire Systems Co. Protected conveyor system
US4514779A (en) * 1983-06-09 1985-04-30 Therm-O-Type Corporation Methods and apparatus for neutralizing a static electrical charge on powder particles
US4611989A (en) * 1985-08-28 1986-09-16 Erik Kersting Horizontally extending curing devices
US4946718A (en) * 1985-12-31 1990-08-07 Protectaire Systems Co. Air curtain housing for conveyor mechanism
CA1300960C (fr) * 1985-12-31 1992-05-19 Stanley Charles Napadow Rideau d'air pour la protection du mecanisme d'un convoyeur
US4902315A (en) * 1987-11-30 1990-02-20 Spicer R Christopher Negative pressure asbestos removal with localized make-up air
US4888200A (en) * 1988-04-21 1989-12-19 W. R. Grace & Co.,-Conn. Process and machine for electrostatic coating
JPH02150177A (ja) 1988-12-01 1990-06-08 Matsushita Electric Ind Co Ltd ビデオカメラ装置
US4960200A (en) * 1989-08-04 1990-10-02 Mepaco, Inc. Conveyer belt cleaning and sanitizing apparatus
FR2656571B1 (fr) * 1989-12-29 1992-05-07 Oce Graphics France Dispositif pour le guidage secondaire d'un support d'impression sur une machine a dessiner.
US5245925A (en) * 1990-04-19 1993-09-21 Ryco Graphic Manufacturing Inc. Dry brush cleaning apparatus and method for cleaning printing press blanket cylinders
JPH0733080B2 (ja) * 1990-06-08 1995-04-12 板坂 征夫 印刷機の集麈装置
US5086700A (en) * 1990-09-10 1992-02-11 Eduard Van Den Berg Drying/curing apparatus for printing presses
DE9115032U1 (fr) * 1991-12-04 1992-01-16 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE4207118C2 (de) * 1992-03-06 2001-05-10 Hans G Platsch Bestäubungsgerät
US5293985A (en) * 1992-05-11 1994-03-15 Alvarez Rick E Cleaning device for dry cleaning conveyor
US5484061A (en) * 1992-08-04 1996-01-16 Advanced Electrostatic Technologies, Inc. Electrostatic sieving apparatus
EP0662927A1 (fr) * 1992-10-05 1995-07-19 Frigoscandia Equipment Aktiebolag Appareil de lavage de bande transporteuse
US5265536A (en) * 1993-01-11 1993-11-30 Millard James S System for collecting airborne powder, mists, and fumes
US5743958A (en) * 1993-05-25 1998-04-28 Nordson Corporation Vehicle powder coating system
US5537925A (en) * 1993-09-03 1996-07-23 Howard W. DeMoore Infra-red forced air dryer and extractor
US5397394A (en) * 1993-09-09 1995-03-14 The Fishing Group Powder coating booth
DE19549589B4 (de) * 1995-02-01 2005-11-17 Heidelberger Druckmaschinen Ag Bogenleiteinrichtung für Druckmaschinen
US5540152A (en) * 1995-04-10 1996-07-30 Demoore; Howard W. Delivery conveyor with control window ventilation and extraction system
US5634401A (en) * 1995-04-25 1997-06-03 Electric City Printing Company Printing press powder removal system
JPH08295009A (ja) * 1995-04-27 1996-11-12 Mitsubishi Heavy Ind Ltd フレキソ印刷機
JPH0957945A (ja) * 1995-08-25 1997-03-04 Kinki Seiko Kk 印刷機用集塵装置
US5713285A (en) * 1995-10-06 1998-02-03 Oxy-Dry Corporation Powder spray systems and methods for their use
US5758580A (en) * 1996-03-13 1998-06-02 Heidelberger Druckmaschinen Ag Printing unit using various ink types
US5671838A (en) * 1996-04-02 1997-09-30 Bowman; John H. Apparatus for cleaning of conveyors
US5746302A (en) * 1996-04-02 1998-05-05 Bowman; John H. Apparatus for cleaning conveyors
US5649616A (en) * 1996-04-11 1997-07-22 Stecklow; Richard L. Conveyor chain cleaning apparatus
DE19617194C2 (de) * 1996-04-29 2000-09-14 Ltg Lufttechnische Gmbh Luftabsaugvorrichtung für Druckmaschinen
DE19648227A1 (de) * 1996-11-21 1998-05-28 Hans Georg Platsch Verfahren und Vorrichtung zum Bestäuben von Produkten, insbesondere Druckprodukten
US6170427B1 (en) * 1997-01-15 2001-01-09 Optimum Air Corporation Radiation curing system
US5782183A (en) * 1997-03-07 1998-07-21 Ward Holding Company, Inc. Pressurized machine for processing blanks
JP3568086B2 (ja) * 1997-03-28 2004-09-22 株式会社前川製作所 低温食品加工装置
US5966836A (en) * 1997-04-11 1999-10-19 Howard W. DeMoore Infrared heating apparatus and method for a printing press
US6220693B1 (en) * 1997-09-29 2001-04-24 Colorspan Corporation Overspray adaptation method and apparatus for an ink jet print engine
DE19859246A1 (de) * 1998-01-20 1999-07-22 Koch Hans Peter Bogenoffsetdruckverfahren und Bogenoffsetdruckmaschine
DE19901245A1 (de) * 1998-02-17 1999-08-19 Heidelberger Druckmasch Ag Vorrichtung zum Pudern bedruckter Bogen
JPH11314347A (ja) * 1998-03-24 1999-11-16 Heidelberger Druckmas Ag 作動装置を有する印刷機
IT1301697B1 (it) * 1998-06-12 2000-07-07 Cml Handling Technology S P A Apparecchiatura per la pulitura dei tappetini rotanti in macchinesmistatrici e macchina smistatrice dotata di detta apperecchiatura.
DE10007249A1 (de) * 1999-03-29 2000-10-05 Heidelberger Druckmasch Ag Ausleger für eine Bogen verarbeitende Druckmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9937484A1 *

Also Published As

Publication number Publication date
JP2002500974A (ja) 2002-01-15
WO1999037484A1 (fr) 1999-07-29
JP4436564B2 (ja) 2010-03-24
EP1049584B1 (fr) 2003-01-15
DE19859246A1 (de) 1999-07-22
DE59904038D1 (de) 2003-02-20
US6802256B1 (en) 2004-10-12

Similar Documents

Publication Publication Date Title
DE19733691C2 (de) Bogen verarbeitende Rotationsdruckmaschine
EP1049584B1 (fr) Procede et dispositif pour empecher une propagation incontrolee de poudre dans une machine a imprimer
DE19901670C5 (de) Verfahren und Vorrichtung zum Sauberhalten und/oder Reinigen einer Bogenauslage einer Bogenoffsetdruckmaschine
CH397727A (de) Blattabgabemechanismus für eine Druckerpresse
EP1091855B1 (fr) Procede offset a feuilles et presse offset a feuilles
DE19648227A1 (de) Verfahren und Vorrichtung zum Bestäuben von Produkten, insbesondere Druckprodukten
DE19643987C1 (de) Bestäubungseinrichtung
DE4221527C2 (de) Vorrichtung zum Reinigen eines Walzenspaltes in Rotationsdruckmaschinen
DE19826083B4 (de) Puderabsaugung in Auslegern von Bogenrotationsdruckmaschinen
DE4424964A1 (de) Bogenleiteinrichtung zum Wenden von Bogen
EP1066160B1 (fr) Procede et machine d'impression offset
EP0947321B1 (fr) Poudreur dans une machine d'impression
EP1772265B1 (fr) Dispositif de décharge pour une machine d'impression
DE19647259A1 (de) Verfahren und Vorrichtung zur Reinigung von Transportmitteln
DE19631175C1 (de) Vorrichtung zur Bogenzufuhr zu einer Druckmaschine
DE19643747A1 (de) Einrichtung zur Applikation eines Trennmediums auf flächige Produkte
DE10161269B4 (de) Ausleger einer Bogenrotationsdruckmaschine
DE102011005887B4 (de) Einrichtung zur Absaugung von Puderresten in Druckmaschinen
DE10161267B4 (de) Einrichtung zur Puder- und Warmluftabsaugung im Ausleger einer Bogenrotationsdruckmaschine
EP0945268A1 (fr) Poudreur dans une machine à imprimer
DE10207865A1 (de) Ausleger für eine flächige Bedruckstoffe verarbeitende Maschine
DE10144165B4 (de) Vorrichtung zur Bogenführung
DE19703626A1 (de) Vorrichtung zum Bestäuben von bewegten flächigen Produkten
DE102004036538A1 (de) Vorrichtung zum sektionalen Auftrag von Flotte auf eine Warenbahn
DE19622234A1 (de) Bestäubungsgerät

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000630

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE FR GB LI NL

Kind code of ref document: A1

Designated state(s): BE CH DE FR GB IT LI NL

17Q First examination report despatched

Effective date: 20010312

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RBV Designated contracting states (corrected)

Designated state(s): BE CH DE FR GB IT LI NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE FR GB IT LI NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59904038

Country of ref document: DE

Date of ref document: 20030220

Kind code of ref document: P

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20030307

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030311

Year of fee payment: 5

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20030315

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20031016

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040131

BERE Be: lapsed

Owner name: *KOCH HANS-PETER

Effective date: 20040131

Owner name: *HEIDELBERGER DRUCKMASCHINEN A.G.

Effective date: 20040131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040801

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050119

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20091201

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20150122

Year of fee payment: 17

Ref country code: IT

Payment date: 20141224

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20150122

Year of fee payment: 17

Ref country code: FR

Payment date: 20150119

Year of fee payment: 17

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160119

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160131

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160119

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180131

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59904038

Country of ref document: DE