EP0518181A1 - Unité de préhension réglable dans des machines d'impression - Google Patents

Unité de préhension réglable dans des machines d'impression Download PDF

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Publication number
EP0518181A1
EP0518181A1 EP92109269A EP92109269A EP0518181A1 EP 0518181 A1 EP0518181 A1 EP 0518181A1 EP 92109269 A EP92109269 A EP 92109269A EP 92109269 A EP92109269 A EP 92109269A EP 0518181 A1 EP0518181 A1 EP 0518181A1
Authority
EP
European Patent Office
Prior art keywords
curve
gripper unit
unit according
controllable
gripper
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
EP92109269A
Other languages
German (de)
English (en)
Other versions
EP0518181B1 (fr
Inventor
Volkmar Rolf Schwitzky
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert AG
Koenig and Bauer 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 Koenig and Bauer Albert AG, Koenig and Bauer AG filed Critical Koenig and Bauer Albert AG
Publication of EP0518181A1 publication Critical patent/EP0518181A1/fr
Application granted granted Critical
Publication of EP0518181B1 publication Critical patent/EP0518181B1/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
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • 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
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/045—Details of grippers
    • 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
    • B65H29/683—Slowing-down from chain delivery
    • 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
    • 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 controllable gripper unit for sheet delivery in printing machines according to the preamble of claim 1.
  • the conveying speed of the sheet to be deposited must be reduced at the moment the sheet is deposited or must be decelerated to zero in order to obtain an evenly deposited, well-stacked stack .
  • a sheet delivery device for slowing the depositing of sheets in which gripper carriages are attached to circulating transport chains via coupling and the speed is reduced by separating the path of the gripper carriages from the chain conveyor in that an eccentric for deflecting the transport chain Circular arc-shaped gripper carriage deflection path is provided, the axis of the deflection wheel being arranged below the center of the gripper carriage deflection path.
  • the transport chain with the articulation point is the coupling of the gripper carriage from the gripper carriage track through the deflection wheel arranged eccentrically to the gripper carriage track distracted.
  • the transport chain travels a larger distance than the gripper carriage, which reduces the speed of the gripper carriage and thus the speed of the sheet to be deposited.
  • a disadvantage of this sheet delivery device is that two guideways must be used, one for the transport chain and the other for the gripper carriage.
  • the slowing of the grippers in the depositing area which is brought about in this way, is about 20 to 30 percent of the machine running speed and remains constant, since the chain has only a limited possibility of deflection in relation to the gripper carriage in the deflection area, which leads to the differential speed between the gripper carriage and chain mentioned.
  • a suction roller or similar suction elements must also be used to brake the printing material, which is particularly disadvantageous if printing is done using the perfecting method and thus the printed back is damaged.
  • the high suction forces required in cardboard processing, which are necessary due to the large kinetic energy of the sheets, are not achieved in most cases.
  • the sheets are deposited on the sheet stops with a relatively high residual speed, which leads to damage to the leading edge of the sheet.
  • the invention has for its object to provide a gripper control in sheet delivery of printing machines for slowing the depositing of sheets, the speed of the gripper during the depositing process can be varied from the full transport chain speed to almost zero and reduces the effect of inertia forces on the transport chains will.
  • the controllable gripper unit according to the invention has made it possible to deposit the sheet at the desired speed. Due to the adjustability of the curve part of the curve, it is also possible to curve the sheet over the entire speed range of the machine at the same speed to file. By delaying the grippers, reduced suction power can be used on the suction roller or other suction elements, which has a particularly favorable effect on the perfecting. In addition, less blown air is applied to the sheet, which facilitates stacking as a result of reduced air cushion formation and counteracts the signs of smearing when the sheets are deposited. Likewise, overshooting of the sheets over the sheet stop shaft is avoided, or the sheet front edges are no longer deformed when being deposited due to the inertia of the printed material.
  • the transport chain 1 is guided over a chain wheel 2 and a chain deflection wheel 3 and is supported by chain guides, not shown.
  • the transport chain 1 is equipped at certain intervals with gripper units 4, the gripper units 4 u. a.
  • Known grippers 7, which are seen in a case according to FIG. 1 in the direction of movement A of the transport chain 1, just before the chain deflection wheel 3.
  • the gripper 7 runs with a roller lever 8 against a gripper opening curve 9, the sheet 11 being released and placed against the sheet stops 12 on the sheet stack 13.
  • FIG. 1 The detail D according to FIG. 1 is shown in an enlarged view in FIG. 2.
  • FIG. 2 the perspective view of a gripper unit 4 is shown.
  • Fig. 3 shows the schematic representation of a gripper unit 4 according to the invention in the rest position.
  • two plates 14 are arranged laterally, which are articulated by means of bearing pins 16 on the transport chains 1 according to FIGS. 1 and 2.
  • the signs 14 have two guides 17 arranged parallel to the direction of movement A, in which a slide 18 is arranged so as to be displaceable.
  • Located on the carriage 18 are the grippers, identified overall by 7, which consist of the gripper stop 19, the gripper lever 21, the roller lever 8 and the gripper shaft 22.
  • a tension spring 25 is arranged between the joint 23 on the shield 14 and the joint 24 on the slide 18.
  • toggle lever 26 consisting of two couplings are supported.
  • the toggle lever 26 has a cam roller 27 on the knee joint.
  • the gripper unit 4 is shown in the working position, ie the toggle lever 26 was actuated via the cam roller 27 and the slide 18 was counter to the force of the tension spring 25 against the transport direction A in the Guides 17 moved in direction B.
  • the angle of the toggle lever 26 has increased from the value x to the value y.
  • FIG. 5 the enlarged representation of the chain deflection is shown, without showing the chain deflection wheel 3.
  • a gripper unit 4 which has a compression spring 32, i. H. the carriage 18 is moved in the direction of arrow B against the force of the compression spring 32.
  • the compression spring 32 is fastened between the joint 24 and a fixed point 33 on the shield 14.
  • equivalent means can also be used, e.g. B. gas springs or leg springs.
  • the use of a leg spring would then take place in the knee joint, at the seat of the cam roller 27 and act against the two couplers.
  • a torsion bar spring can also be used, which are arranged in hollow cross members between the plates 14.
  • a curve 29 is formed such that at the time of the curve entry of the lower gripper unit 4 and the passage of the curve roller 27 in the curve entry 31, the previous gripper unit 4 'seen in the direction of transport A simultaneously passes the curve entry 31' with its curve roller 27 '.
  • FIG. 7 shows a further embodiment variant according to FIG. 5, the details of the gripper units being omitted for simplification.
  • the Curve 28 articulated with an adjustable curve part 34.
  • the curve part 34 is adjusted via an actuating element 35, which consists of an actuating motor or can be actuated otherwise mechanically, pneumatically, hydraulically or the like.
  • the control element 35 can also be controlled independently of the speed via the machine control.
  • the function is as described below.
  • the transport chain 1 rotates in the direction of arrow A. 7, the gripper unit 4 runs into the area of the movable cam part 34.
  • the cam roller 27 is acted upon in the knee joint of the knee lever 26 and spreads the knee lever 26, so that the angle between the coupling of the knee lever 26, as shown in FIGS. 3 and 4, changes from the value x to the value y.
  • the carriage 18 moves in the guides 17 in the direction of arrow B, that is, counter to the direction of transport A.
  • This relative movement delays the gripper 7 to the chain circulation speed, allows it to open and the sheet 11 is brought onto the sheet stack.
  • a depositing speed of approximately zero compared to the chain circulation speed is possible.
  • the curve part 34 in the direction of arrow C according to FIG. 7 the deceleration of the carriage 18 increases. The deceleration of the carriage 18 can thus be readjusted as a function of the machine speed. As a result, the same sheet depositing speeds can be achieved for different machine speeds.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
EP92109269A 1991-06-11 1992-06-02 Unité de préhension réglable dans des machines d'impression Expired - Lifetime EP0518181B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4119188 1991-06-11
DE4119188A DE4119188C1 (fr) 1991-06-11 1991-06-11

Publications (2)

Publication Number Publication Date
EP0518181A1 true EP0518181A1 (fr) 1992-12-16
EP0518181B1 EP0518181B1 (fr) 1995-09-13

Family

ID=6433668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109269A Expired - Lifetime EP0518181B1 (fr) 1991-06-11 1992-06-02 Unité de préhension réglable dans des machines d'impression

Country Status (5)

Country Link
US (1) US5179900A (fr)
EP (1) EP0518181B1 (fr)
JP (1) JPH0780296B2 (fr)
DE (3) DE4119188C1 (fr)
RU (1) RU2070113C1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4812033A (en) * 1985-02-26 1989-03-14 Canon Kabushiki Kaisha Ophthalmic apparatus
DE19516132C2 (de) * 1995-05-03 1997-04-17 Roland Man Druckmasch Probebogenentnahme
DE19642804C2 (de) * 1996-10-17 2002-11-07 Heidelberger Druckmasch Ag Einstellvorrichtung für eine Greiferöffnungskurve in einem Kettenausleger einer Bogendruckmaschine
DE102009008856B4 (de) 2008-03-10 2018-02-22 Heidelberger Druckmaschinen Ag Bogenausleger
DE102008034763A1 (de) * 2008-07-25 2010-01-28 Heidelberger Druckmaschinen Ag Verfahren zum Betreiben einer Bogenstanzmaschine
DE102010001805B4 (de) * 2010-02-11 2020-10-15 Koenig & Bauer Ag Vorrichtung zur Ablage von Bogen in Auslagen von bogenverarbeitenden Maschinen
JP2013039820A (ja) * 2011-08-19 2013-02-28 Fujifilm Corp 画像形成装置、画像形成方法
DE102012007606A1 (de) * 2012-04-16 2013-10-17 Heidelberger Druckmaschinen Aktiengesellschaft Verfahren zur Bogenübergabe und Stanzmaschinemit Greifer-Transportsystem
DE102013220052A1 (de) 2012-10-05 2014-04-10 Koenig & Bauer Aktiengesellschaft Auslagevorrichtung einer bogenverarbeitenden Maschine mit einem Bogenfördersystem zum Transport von Bogen zu einem Bogenstapel und Verfahren zum Transport von Bogen
JP2015059043A (ja) * 2013-09-20 2015-03-30 大日本印刷株式会社 排紙装置及びその方法
DE102015218130B4 (de) * 2015-09-22 2019-02-14 Koenig & Bauer Ag Auslageeinrichtungen und Verfahren zur Steuerung einer Ablage von Bedruckstoffbogen
US9840389B2 (en) * 2016-05-04 2017-12-12 Tecnau, Inc. Sheet stacker
US11174114B2 (en) 2016-08-18 2021-11-16 Hewlett-Packard Development Company, L.P. Clamps
CN111645415B (zh) * 2020-07-19 2021-02-12 深圳市汇亿丰印刷科技有限公司 一种包装纸箱用印刷设备及其工作方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1513438A (en) * 1920-11-06 1924-10-28 Wallace S Warnock Printing press
US1551678A (en) * 1922-02-09 1925-09-01 American Bank Note Co Sheet-delivery mechanism for printing machines
GB589389A (en) * 1944-06-29 1947-06-19 Frank Romeo Belluche Sheet delivery mechanism for printing presses and kindred machines
DE2149151A1 (de) * 1970-10-29 1972-05-10 Polygraph Leipzig Bogenauslageeinrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2040670B1 (de) * 1970-08-17 1971-08-05 Maschf Augsburg Nuernberg Ag Greifersteuerung an Kettenauslegern von Bogendruckmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1513438A (en) * 1920-11-06 1924-10-28 Wallace S Warnock Printing press
US1551678A (en) * 1922-02-09 1925-09-01 American Bank Note Co Sheet-delivery mechanism for printing machines
GB589389A (en) * 1944-06-29 1947-06-19 Frank Romeo Belluche Sheet delivery mechanism for printing presses and kindred machines
DE2149151A1 (de) * 1970-10-29 1972-05-10 Polygraph Leipzig Bogenauslageeinrichtung

Also Published As

Publication number Publication date
EP0518181B1 (fr) 1995-09-13
JPH05169629A (ja) 1993-07-09
DE59203636D1 (de) 1995-10-19
JPH0780296B2 (ja) 1995-08-30
RU2070113C1 (ru) 1996-12-10
DE4119188C1 (fr) 1992-12-10
DE9116357U1 (fr) 1992-07-30
US5179900A (en) 1993-01-19

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