EP0453810B1 - Vorrichtung zur Arretierung der Saugdüse von Trennsaugern am Saugkopf eines Bogenanlegers - Google Patents

Vorrichtung zur Arretierung der Saugdüse von Trennsaugern am Saugkopf eines Bogenanlegers Download PDF

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Publication number
EP0453810B1
EP0453810B1 EP91104985A EP91104985A EP0453810B1 EP 0453810 B1 EP0453810 B1 EP 0453810B1 EP 91104985 A EP91104985 A EP 91104985A EP 91104985 A EP91104985 A EP 91104985A EP 0453810 B1 EP0453810 B1 EP 0453810B1
Authority
EP
European Patent Office
Prior art keywords
suction
suction nozzle
bearing
sheet
feeder
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
EP91104985A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0453810A3 (en
EP0453810A2 (de
Inventor
Jochen Renner
Peter Sobotta
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 EP0453810A2 publication Critical patent/EP0453810A2/de
Publication of EP0453810A3 publication Critical patent/EP0453810A3/de
Application granted granted Critical
Publication of EP0453810B1 publication Critical patent/EP0453810B1/de
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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0825—Suction grippers separating from the top of pile and acting on the rear part of the articles relatively to the final separating direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0883—Construction of suction grippers or their holding devices

Definitions

  • the invention relates to a device for locking the suction nozzle of separating suction devices on the suction head of a sheet feeder.
  • Such a device is known from DE-A-23 09 013. It is used when so-called jumping vacuums are used as separating suction devices and special drive means for the lifting movement of the separating suction device are dispensed with.
  • a lever pivotally mounted about a horizontal axis is provided on the suction head, which lever has a cam roller which interacts with a control cam and, at its free end, a crossbar holding the separating nozzles.
  • the support is formed by rollers which are supported at the ends of the crossbar and which cooperate with flanges which extend horizontally on the suction nozzles of the separating suction devices.
  • the means for locking the suction nozzle of the separating suction device thus have a separate drive with its own control curve, through which the suction nozzle of the separating suction device is forcibly guided downwards when the rear edge of the sheet conveyed into the feeder has left the area of the suction nozzle of the separating suction device.
  • a device for locking the suction nozzle of a vibrating movement separating suction device on the suction head of a sheet feeder in which a pawl in the form of a double lever is pivotally mounted on the separating suction device, one arm of which is an abutment for a nose on the suction nozzle has and the other arm cooperates with a stop which is arranged on a stack button.
  • the separating vacuum is as a jumping vacuum executed so that the suction nozzle jumps up in its rear swivel position after sucking the top sheet in the sheet stack, whereupon the abutment of the pawl engages behind the nose on the suction nozzle and holds it in the upper position until the sheet conveyed into the feeder with it Trailing edge has left the area of the now ventilated suction nozzle.
  • the stop arranged on the pushbutton releases the lock, so that the suction nozzle falls down.
  • US-A-3,071,371 the subject matter of which corresponds to the preamble of claims 1 and 7, finally shows a sheet feeder in which a plurality of shafts extending across the width of a sheet stack are arranged in two laterally arranged frames. On one of these shafts there are both curve segments for driving at least one sensing foot and curves for locking a vacuum cleaner stop at regular intervals.
  • a suction nozzle has a laterally arranged support, which is supported in a raised position by a movably arranged counter bearing. The counter bearing is movable by coupling to the drive of a sensing foot in the working cycle of the suction head.
  • the disclosed solution takes up a lot of installation space and at least partially obscures the view of the front area of the sheet stack.
  • the object of the invention is to provide a locking device for a separating suction device designed as a jumping suction device in the upper end position with a forced release of the suction nozzle in a suction head in the suction stroke of the machine with a touch foot resting on the rear edge of the sheet stack.
  • the link body is mounted on the axis of a toggle joint between drive members for the movement of the feeler foot.
  • Embodiments of the invention are shown schematically in the drawing.
  • the exemplary embodiments show a suction head in which a feeler foot 1 can be placed on the rear edge of the uppermost sheet 2 in the sheet stack 3 in the work cycle of the machine and can be pivoted back into a raised end position.
  • the feeler foot 1 is articulated on the one hand with the free end of one arm 4a of a double lever 4 and on the other hand on a guide lever 5, both of which are pivotally mounted about axes 6 and 7 extending transversely to the conveying direction on the housing 8 of the suction head, these levers being so on one another are coordinated that the feeler 1 swings back and forth again from the position shown with full lines to the position shown with dash-dotted lines.
  • the other arm 4b of the double lever 4 is articulated to one end of a coupling 9, the other end of which is articulated to a roller lever 10, one end of which is articulated on the housing 8 and which carries a cam roller 11, which by means of a to the other end of the roller lever 10 engaging spring 12 is pressed against the circumference of a driven cam 13.
  • This cam 13 thus controls the movement of the feeler 1 in the working cycle of the suction head.
  • a link body 15 can be pivoted, which with a fork-shaped link 16 onto the blow pipe 17 fixed to the housing 8 for the supply of blowing air to loosening fans or the like is pushed on, so that this link body 15, 16 is moved synchronously with the feeler 1 from the position shown in full lines in FIG. 1 to the position shown in broken lines and back.
  • the separating suction device 18 is designed as a jumping suction device and is attached to the housing 8.
  • the lower part of this jumping vacuum cleaner with the suction nozzle 19 falls through due to its own weight and possibly with support at atmospheric internal pressure an inner spring 30 (Figure 2) in the lower end position so that the suction nozzle rests on the top sheet 2 in the sheet stack 3.
  • an inner spring 30 Figure 2
  • the suction nozzle 19 jumps into the upper end position and lifts the rear end of the uppermost sheet 2 off the sheet stack 3.
  • the feeler is swiveled back to the rear position indicated by a dash-dotted line. Now, vacuum cleaners not shown in the drawing take over the lifted sheet 2 and transport it towards the feeder.
  • the feeler foot 1 returns to the position shown in full line, the link body 15 being pivoted into the position shown in full line.
  • a counter bearing 20 fastened to the link body 15 engages under a support 21 which is arranged on the side of the suction nozzle 19. Characterized the suction nozzle 19 is locked in the upper position so that it does not fall back into the lower position when the vacuum in the suction nozzle is released.
  • the feeler foot 1 is pivoted into the position drawn with a full line.
  • the feeler foot 1 swings back into the position shown with a dash-dotted line, and at the same time the link body 15 with the counter bearing 20 attached to it releases the support 21 on the suction nozzle 19, so that it also falls back into the lower end position shown with a dash-dotted line and for lifting of the next sheet from sheet stack 3 can be subjected to negative pressure again.
  • FIG. 2 illustrates the arrangement of a pair of separating suction cups, which can be arranged symmetrically to the central longitudinal plane of the machine at a distance from one another.
  • This figure also shows conventional guide springs 22 which secure the suction nozzles of the separating suction devices against rotation and mark the lower end position for the suction nozzle.
  • the arrangement of the tactile foot 1 and the means of the drive for the tactile foot 1 correspond to the description of the exemplary embodiment in FIGS. 1 and 2.
  • a position is provided as a counter bearing for the support 21, a leaf spring 23 which is fastened to a plate 24 which extends downward on the housing 8 of the suction head next to the separating suction device 18.
  • a nose-shaped profile of the leaf spring 23 in the side view passes through a recess in the plate 24 and forms the counter bearing for the support on the suction nozzle 19 of the separating suction device 18.
  • the engagement position of the counter bearing and the support shown in full line on the drawing corresponds to the relaxed state of the leaf spring 23.
  • a release lever 25 is provided which engages with one end in the design profile of the leaf spring 23 and is attached at the other end to a pivot shaft 26 which is connected to the roller lever 10 via a pivot lever 27 and a coupling plate 28 .
  • the leaf spring is relieved, so that it returns to a waiting position for the locking mechanism to take effect.
  • the profiling of the leaf spring 23 has an oblique sliding surface, so that the support 21 can move past the leaf spring 23 past the latter into the upper end position of the suction nozzle 19 while being elastically deformed.
  • the pivot shaft 26 is mounted in a tube 29 which is fixedly connected to the housing 8 of the suction head at one or more points and has slot-shaped recesses on the circumference which penetrate through the pivot lever 27 connected to the pivot shaft 26 becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Manipulator (AREA)
EP91104985A 1990-04-21 1991-03-28 Vorrichtung zur Arretierung der Saugdüse von Trennsaugern am Saugkopf eines Bogenanlegers Expired - Lifetime EP0453810B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012779 1990-04-21
DE4012779A DE4012779C1 (es) 1990-04-21 1990-04-21

Publications (3)

Publication Number Publication Date
EP0453810A2 EP0453810A2 (de) 1991-10-30
EP0453810A3 EP0453810A3 (en) 1992-12-30
EP0453810B1 true EP0453810B1 (de) 1994-11-02

Family

ID=6404832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91104985A Expired - Lifetime EP0453810B1 (de) 1990-04-21 1991-03-28 Vorrichtung zur Arretierung der Saugdüse von Trennsaugern am Saugkopf eines Bogenanlegers

Country Status (7)

Country Link
US (1) US5094439A (es)
EP (1) EP0453810B1 (es)
JP (1) JPH0725430B2 (es)
AT (1) ATE113562T1 (es)
CA (1) CA2037450C (es)
DE (2) DE4012779C1 (es)
ES (1) ES2064794T3 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553455B1 (de) * 1992-01-30 1998-03-25 Ferag AG Verfahren und Vorrichtung zum Abheben von Druckereierzeugnissen von einem Stapel
DE4312228A1 (de) * 1993-04-14 1994-10-27 Heidelberger Druckmasch Ag Taster zum zyklischen Abtasten der Stapelhöhe
JPH07251966A (ja) * 1994-03-10 1995-10-03 Canon Inc 記録または読み取り装置、及びシート吸着装置
DE4416287A1 (de) * 1994-05-07 1995-11-09 Heidelberger Druckmasch Ag Vorrichtung zur Signalerzeugung an einem Saugkopf
DK1149036T3 (da) * 1999-02-05 2004-04-13 Ferag Ag Indretning til aftagning af en stabel af genstande i fladeform, særligt trykkeriprodukter
DE19947573A1 (de) * 1999-10-01 2001-04-05 Heidelberger Druckmasch Ag Hub-Schleppsaugergetriebe für Bogen verarbeitende Maschine
US7080832B2 (en) * 2003-05-14 2006-07-25 Goss International Americas, Inc. Sheet material feeder
JP4338611B2 (ja) * 2004-09-17 2009-10-07 富士フイルム株式会社 フィルムシート枚葉機構及びこれを備えた熱現像記録装置
JP2006347701A (ja) * 2005-06-16 2006-12-28 Komori Corp シート状物押え装置
US20070138733A1 (en) * 2005-12-16 2007-06-21 Chris Gray Pick mechanism
DE102021115423A1 (de) 2021-06-15 2022-12-15 Koenig & Bauer Ag Anleger einer Bogenbearbeitungsmaschine und Verfahren zum Bogentrennen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR580769A (fr) * 1923-04-26 1924-11-15 Anoyme Marinoni Machines Et Ma Séparateur de feuilles pour margeurs automatiques
US2151941A (en) * 1935-02-26 1939-03-28 Measuring apparatus
DE891267C (de) * 1938-11-08 1953-09-28 Georg Dr-Ing Spiess Vorrichtung zum Abheben des obersten Bogens von einem Flach- oder Rundstapel mittelsschwingender Greiferduesen
US2476577A (en) * 1946-12-11 1949-07-19 Backhouse Headley Townsend Sheet separating mechanism
US2615713A (en) * 1948-04-22 1952-10-28 Backhouse Headley Townsend Sheet separating machine
US3071371A (en) * 1960-12-07 1963-01-01 Miehle Goss Dexter Inc Sheet feeding apparatus
DE6947980U (de) * 1969-12-11 1970-03-19 Helmut Dr Ing Spiess Vorrichtung zum vereinzeln und foerdern der bogen eines von senkrecht stehenden bogen gebildeten stapels
GB8515845D0 (en) * 1985-06-22 1985-07-24 Beecham Group Plc Treatment
DE4012778C1 (es) * 1990-04-21 1991-05-29 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De

Also Published As

Publication number Publication date
JPH04223941A (ja) 1992-08-13
US5094439A (en) 1992-03-10
ATE113562T1 (de) 1994-11-15
ES2064794T3 (es) 1995-02-01
JPH0725430B2 (ja) 1995-03-22
EP0453810A3 (en) 1992-12-30
CA2037450C (en) 1995-01-03
EP0453810A2 (de) 1991-10-30
DE59103387D1 (de) 1994-12-08
DE4012779C1 (es) 1991-05-02

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