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EP0363662A2 - Vorrichtung zum Transportieren von plattenförmigen Gegenständen in einer Rotationsdruckmaschine - Google Patents

Vorrichtung zum Transportieren von plattenförmigen Gegenständen in einer Rotationsdruckmaschine Download PDF

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Publication number
EP0363662A2
EP0363662A2 EP89116903A EP89116903A EP0363662A2 EP 0363662 A2 EP0363662 A2 EP 0363662A2 EP 89116903 A EP89116903 A EP 89116903A EP 89116903 A EP89116903 A EP 89116903A EP 0363662 A2 EP0363662 A2 EP 0363662A2
Authority
EP
European Patent Office
Prior art keywords
plate
driving rollers
driving
rollers
series
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
EP89116903A
Other languages
English (en)
French (fr)
Other versions
EP0363662B1 (de
EP0363662A3 (en
Inventor
Charles Stark
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4263879&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0363662(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bobst SA filed Critical Bobst SA
Priority to AT89116903T priority Critical patent/ATE91462T1/de
Publication of EP0363662A2 publication Critical patent/EP0363662A2/de
Publication of EP0363662A3 publication Critical patent/EP0363662A3/fr
Application granted granted Critical
Publication of EP0363662B1 publication Critical patent/EP0363662B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • 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
    • 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
    • B65H29/241—Suction devices
    • B65H29/243—Suction rollers
    • 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
    • B65H2406/30—Suction means
    • B65H2406/31—Suction box; Suction chambers
    • B65H2406/312—Suction box; Suction chambers incorporating means for transporting the handled material against suction force
    • B65H2406/3122—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the present invention relates to a device for transporting plate elements in a rotary printing machine in several colors for plate elements, more particularly for thick or corrugated cardboard elements.
  • Such machines have large dimensions of the order of 5 m long by 3 m wide and may include a feeding station, several printing stations for a full color result, and, if necessary, a cutting station, an ejection station and a final station for receiving plate elements.
  • a feeding station may include a feeding station, several printing stations for a full color result, and, if necessary, a cutting station, an ejection station and a final station for receiving plate elements.
  • the device currently used comprises a horizontal frame carrying a series of striated trees orthogonal to the direction of movement of the leaves.
  • Two side members carry transport rollers arranged opposite each striated shaft. These two beams are kept symmetrical in a lateral function defined with respect to the longitudinal axis of the machine. These beams are supported by two transverse shafts intended, on the one hand, to maintain the vertical position of the beams and, on the other hand, to drive the transport rollers.
  • the lateral movement of the side members is ensured by threaded pins acting in pairs on each of the side members.
  • threaded pins acting in pairs on each of the side members.
  • the latter device has many drawbacks. As can easily be understood, it is obvious that the two lateral edges or the places on which the transport rollers and the ridged shafts act must be free to print if the transported sheet is not to be smudged.
  • the width of the sheet should be increased so as to obtain transport over a free printing area. This of course corresponds to an undesirable waste.
  • a third drawback lies in the fact that in use it appears that the adjustments of this device as a function of the width and of the thickness of the sheet are tedious. Indeed, if it is easy to motorize the lateral movement of the side members, the adjustment of the vertical position of the cradle cannot be done with sufficient precision than mechanically, by a large set of cams, pinions and levers. As with any adjustment, several tests should be carried out followed by corrections to obtain a satisfactory result. Even after such adjustments made with seriousness, it is not impossible that the longitudinal and lateral adjustment of certain sheets may change during production. Last but not least, this device involves significant mechanics, thereby increasing the production costs and reducing in a certain way the accessibility in the upper part of the printing stations precisely at the level of the contact between the pressure roller and the door roller. - shots.
  • the object of the present invention is to provide a device for transporting plate elements in a rotary machine for printing plate elements which is efficient, that is to say rapid and without any possibility of longitudinal and lateral deviation. plate elements. It is moreover desirable that the operator is freed from any adjustment on the transport device itself, or that, if an adjustment is necessary, it is directly carried out by an adjustment normally applied to the corresponding printing stations. Finally, this device must give off a better volume of accessibility between the cylinders of the printing stations, this volume possibly being able to be used to carry out additional operations such as drying for example.
  • the present invention relates to a device for transporting plate elements in a rotary machine for printing plate elements, characterized in that it comprises a horizontal frame constituted by two lateral beams connected to each other by crosspieces, at least one transverse shaft supported at its ends in said lateral beams, said transverse shaft being provided with a series of driving rollers arranged side by side, a perforated lower plate fixed on the bottom of each lateral spar, at least one suction means comprising a collector such as a hood connecting together the upper faces of each spar lateral, means for rotating the transverse shaft or shafts, in that said driving rollers are arranged inside the horizontal frame so that the lower part of their circumference exceeds the plane defined by the perforated lower plate, in that the openings of the perforated lower plate are arranged so as to leave a gap all around the protruding part of the driving rollers, in that the downstream edge of each opening of the perforated lower plate is folded up towards the driving rollers, in that the lower part of the circumference of each
  • the suction means consist of a fan operating so as to create a vacuum inside the assembly defined by the collector and the horizontal frame closed by the perforated plate
  • the collector may advantageously be constituted by a plurality of separate boxes and the fan of the variable flow type.
  • the drive means of the shafts can include: - a toothed wheel at each end of the shaft located on the same side of the machine, - a series of gears mounted on the corresponding spar and coupling each toothed wheel to its neighbor or neighbors, - a drive member applying a torque through a reduction gearbox to the first gear or to the first pinion.
  • the drive means of the shafts comprise a first series of pinions coupling each toothed wheel which belongs to a first upstream group of shafts to its or its two neighbors, a second series of pinions also coupling to its neighbors, so identical, each toothed wheel which belongs to a second downstream group of shafts.
  • the motor unit applies a torque through a transmission bar to two reduction boxes, each of the boxes animating a series of gears respectively.
  • FIG. 1 the upper downstream part of a rotary flexographic printing station (100) is illustrated on the right side.
  • a plate cylinder (110) with its corresponding pressing cylinder (120) arranged parallel above.
  • the inkwell and the associated dispensing cylinders are arranged in the lower part of the station.
  • an element (130) passes between the plate cylinder (110) and the pressing cylinder (120), it is printed on its underside by the plate (111).
  • the next downstream printing station is not immediately attached to this upstream printing station (100), but an access space (50) provided with the transport device according to the invention is Reserve.
  • This transport device first comprises a frame essentially consisting of two lateral beams (200, 201) connected together by a series of crosspieces (202). This frame connects the upper part of the consecutive flexography printing stations.
  • These side rails (200, 201) carry a series of shafts (230), mutually parallel and orthogonal to the direction of movement of the elements (130). So that these shafts (230) are rotatable, their ends are respectively engaged in bearings (210) integrated in the side rails (200, 201).
  • These shafts (230) have, cut in the mass, a series of driving rollers (240).
  • the surface of these driving rollers can be smooth, ridged or have a projection of ceramic similar to sandpaper.
  • the shafts (230) pass through the lateral spar (201), opposite the conductive side, and are provided, at their respective ends, with a toothed wheel (250) allowing them to be driven in rotation as will be described by the after.
  • the frame comprises 14 trees (230) with a diameter equal to 7 cm.
  • Each of the shafts (230) carry 9 long rolls of 10 cm, spaced every 5 cm and having an outside diameter of about 9 cm.
  • a plate (260) is provided to cover the underside of the frame except at the level of rectangular openings through which the lower portion of the drive rollers (240) pass in correspondence.
  • the bearings (210) are located in the side rails (200, 201) of the frame so that the drive rollers (240) emerge downward from the plate (260).
  • the driving roller (240) emerges from this plate (260).
  • the downstream edges (265) of these openings are folded upwards, that is to say in the direction of the axis of rotation of the rollers (240). This particular shape of the downstream edge of the opening prevents the front edge of the element (130), driven by the roller (240), from being embedded in the plate at this location.
  • this plate (260) covers in the lower face of the frame the intervals between the rollers (240) leaving a clearance around each emerging lower part of these drive rollers (240).
  • the toothed wheels (250) located at the end of the shafts (230) and at the rear of the side member (201) are driven by a series of pinions (247) which connect them to the toothed wheels neighbors.
  • This gear train is arranged along the beam (201).
  • a driving member such as an independent electric motor or a shaft for transmitting the driving force of the previous printing station or the driving force coming from the central engine of the machine, is connected by a reduction box to either the first toothed wheel ( 250) or to the first pinion (247).
  • the number of trees (230) to be animated is greater than approximately 10, it becomes preferable to separate them into two groups, an upstream, a downstream, having a distinct set of gears.
  • the same driving force must be split, to activate two Separate reduction boxes each meshing with a group of pinions (247) and cogwheels (250). This duplication can be achieved conventionally by a transmission bridge.
  • the device further comprises a manifold in the form of a hood (300) covering the upper face of the frame. Directly mounted at the top of this hood, there is a fan (310) which can discharge air through a duct (320). Alternatively, only the duct (320) is connected to the top of the hood (300), and the fan (310) is installed in another more accessible part of the machine. Given the small passage for air, limited to the interstices between the plate (260) and each lower part of the rollers (240), this fan creates in regular operation a depression inside this hood. After numerous tests in the workshop, it turned out that a depression of the order of three millibars is sufficient for the proper functioning of the device.
  • this hood (300) can be subdivided into several smaller boxes, each having its own outlet for extracting air (320) associated with the fan (310) or else with a respective fan.
  • the lower parts of the driving rollers (240) lie in the same horizontal plane as the lower part of the pressure roller (120) of the upstream and downstream rotary printing stations. , that is to say in a plane corresponding to the plane defined by the upper part transported items.
  • the conveyor device operates in the following manner: when the printing machine starts, the fan (310) is also put into operation very quickly creating a vacuum. Then, when the machine is switched on, so that the elements (130) start to advance, the shafts (230) are rotated clockwise. Then, when an element (130) starts to come out of the printing station (100), as illustrated in FIG. 1, its front edge is sucked against the rollers (240). By their rotation, therefore by the forward friction force which they exert, these rollers advance the element. As can best be seen in FIG. 2, the element (130), which is sufficiently rigid, never comes into contact with the plate (260). At most, this element is shaped slightly around driving rollers (240) which increases the thrust force imparted by these rollers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Discharge By Other Means (AREA)
  • Handling Of Cut Paper (AREA)
  • Rotary Presses (AREA)
  • Making Paper Articles (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP89116903A 1988-10-12 1989-09-13 Vorrichtung zum Transportieren von plattenförmigen Gegenständen in einer Rotationsdruckmaschine Expired - Lifetime EP0363662B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89116903T ATE91462T1 (de) 1988-10-12 1989-09-13 Vorrichtung zum transportieren von plattenfoermigen gegenstaenden in einer rotationsdruckmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3807/88 1988-10-12
CH3807/88A CH678413A5 (de) 1988-10-12 1988-10-12

Publications (3)

Publication Number Publication Date
EP0363662A2 true EP0363662A2 (de) 1990-04-18
EP0363662A3 EP0363662A3 (en) 1990-07-18
EP0363662B1 EP0363662B1 (de) 1993-07-14

Family

ID=4263879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116903A Expired - Lifetime EP0363662B1 (de) 1988-10-12 1989-09-13 Vorrichtung zum Transportieren von plattenförmigen Gegenständen in einer Rotationsdruckmaschine

Country Status (10)

Country Link
US (1) US5004221A (de)
EP (1) EP0363662B1 (de)
JP (1) JPH0729713B2 (de)
AT (1) ATE91462T1 (de)
AU (1) AU623935B2 (de)
BR (1) BR8905158A (de)
CA (1) CA1324623C (de)
CH (1) CH678413A5 (de)
DE (2) DE68907547T2 (de)
ES (1) ES2041382T3 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0491110A1 (de) * 1990-12-18 1992-06-24 DeMoore, Howard W. Vacuum Transportvorrichtung für Bogenrotationsdruckmaschinen
EP0495320A1 (de) * 1990-12-31 1992-07-22 Printing Research, Inc. Zuführvorrichtung mit Saugluft für Bogenrotationsdruckmaschinen
WO2010086087A1 (fr) 2009-02-02 2010-08-05 Bobst Sa Dispositif de positionnement d'un element en plaque dans une station d'introduction d'une machine de traitement
WO2013060416A2 (fr) 2011-10-24 2013-05-02 Bobst Mex Sa Procede et agencement de reglage pour une machine d'impression
CN103144919A (zh) * 2013-03-08 2013-06-12 苏州新协力特种工业模板有限公司 自动运板架
WO2018167343A1 (es) * 2017-03-17 2018-09-20 Simon Corrugated Machinery, S.L. Dispositivo y procedimiento para el transporte de láminas flexibles

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133255A (en) * 1990-12-31 1992-07-28 Howard W. DeMoore Vacuum transfer apparatus for rotary sheet-fed printing presses
US5228391A (en) * 1990-12-31 1993-07-20 Howard W. DeMoore Vacuum transfer apparatus for rotary sheet-fed printing presses
US5243909A (en) * 1990-12-31 1993-09-14 Howard W. DeMoore Vacuum transfer apparatus for rotary sheet-fed printing presses
US5509352A (en) * 1994-09-23 1996-04-23 Ward Holding Company Paperboard processing machine with vacuum transfer system
US5564693A (en) * 1995-02-01 1996-10-15 Ward Holding Company, Inc. Paperboard processing machine with vacuum transfer system
JP4156733B2 (ja) * 1998-12-08 2008-09-24 リンテック株式会社 貼付装置
US6179285B1 (en) * 1999-01-19 2001-01-30 Xerox Corporation Media transport assembly incorporating vacuum grooves to flatten sheet
AU757899B2 (en) * 1999-01-22 2003-03-13 Sun Automation, Inc. Box making machines and method of retrofitting
US6179763B1 (en) * 1999-01-22 2001-01-30 Sun Automation Inc. Box making machines and method of retrofitting
US6591749B2 (en) * 2000-11-08 2003-07-15 Ward, Inc. Printing machine with improved vacuum transfer
US7669530B2 (en) * 2003-05-16 2010-03-02 Printing Research, Inc. UV curing assembly having sheet transfer unit with heat sink vacuum plate
US6873821B2 (en) * 2003-06-26 2005-03-29 Xerox Corporation Thermally uniform sheet transport for printers
JP5342495B2 (ja) * 2010-04-15 2013-11-13 株式会社梅谷製作所 段ボールシート印刷機
US9126381B2 (en) * 2010-09-07 2015-09-08 Sun Automation, Inc. Box making machines
US8434761B2 (en) * 2011-02-04 2013-05-07 Xerox Corporation Alternating grooved beltless vacuum transport roll
US9493307B2 (en) 2014-03-11 2016-11-15 Sun Automation, Inc. Conveyors for box making machines
CN116568619A (zh) * 2020-11-19 2023-08-08 鲍勃斯脱里昂公司 具有反转传送模块的转换机
DE102022115649A1 (de) 2022-06-23 2023-12-28 Koenig & Bauer Ag Vorrichtung zum Transport von Bogen durch eine Bearbeitungsmaschine sowie Verfahren zum Bogentransport

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL275252A (de) *
DE724130C (de) * 1937-05-05 1942-09-25 E H Georg Spiess Dr Ing Vorrichtung zum Zufuehren der von einem Stapel vereinzelten Bogen zu einer Druckmaschine, Falzmaschine o. dgl.
US3845950A (en) * 1968-11-22 1974-11-05 B Kuzniak Material handling apparatus
DE2946960A1 (de) * 1978-11-21 1980-05-22 Ricoh Kk Blattzufuehreinrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1303056A (de) * 1969-09-19 1973-01-17
US4174104A (en) * 1977-07-27 1979-11-13 Garvey Corporation Conveyor for cards and similar articles
DE3710258A1 (de) * 1987-03-28 1988-10-13 Heidelberger Druckmasch Ag Vorrichtung zum transport von bogen, beispielsweise papierbogen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL275252A (de) *
DE724130C (de) * 1937-05-05 1942-09-25 E H Georg Spiess Dr Ing Vorrichtung zum Zufuehren der von einem Stapel vereinzelten Bogen zu einer Druckmaschine, Falzmaschine o. dgl.
US3845950A (en) * 1968-11-22 1974-11-05 B Kuzniak Material handling apparatus
DE2946960A1 (de) * 1978-11-21 1980-05-22 Ricoh Kk Blattzufuehreinrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0491110A1 (de) * 1990-12-18 1992-06-24 DeMoore, Howard W. Vacuum Transportvorrichtung für Bogenrotationsdruckmaschinen
EP0495320A1 (de) * 1990-12-31 1992-07-22 Printing Research, Inc. Zuführvorrichtung mit Saugluft für Bogenrotationsdruckmaschinen
WO2010086087A1 (fr) 2009-02-02 2010-08-05 Bobst Sa Dispositif de positionnement d'un element en plaque dans une station d'introduction d'une machine de traitement
WO2013060416A2 (fr) 2011-10-24 2013-05-02 Bobst Mex Sa Procede et agencement de reglage pour une machine d'impression
CN103144919A (zh) * 2013-03-08 2013-06-12 苏州新协力特种工业模板有限公司 自动运板架
WO2018167343A1 (es) * 2017-03-17 2018-09-20 Simon Corrugated Machinery, S.L. Dispositivo y procedimiento para el transporte de láminas flexibles

Also Published As

Publication number Publication date
DE68907547T2 (de) 1993-11-04
ATE91462T1 (de) 1993-07-15
BR8905158A (pt) 1990-05-15
CH678413A5 (de) 1991-09-13
CA1324623C (en) 1993-11-23
JPH02188364A (ja) 1990-07-24
US5004221A (en) 1991-04-02
AU623935B2 (en) 1992-05-28
DE68907547D1 (de) 1993-08-19
EP0363662B1 (de) 1993-07-14
JPH0729713B2 (ja) 1995-04-05
DE68907547T4 (de) 1996-08-01
AU4274789A (en) 1990-04-26
ES2041382T3 (es) 1993-11-16
EP0363662A3 (en) 1990-07-18

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