EP0443397A1 - Margeur de feuilles - Google Patents

Margeur de feuilles Download PDF

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Publication number
EP0443397A1
EP0443397A1 EP91101867A EP91101867A EP0443397A1 EP 0443397 A1 EP0443397 A1 EP 0443397A1 EP 91101867 A EP91101867 A EP 91101867A EP 91101867 A EP91101867 A EP 91101867A EP 0443397 A1 EP0443397 A1 EP 0443397A1
Authority
EP
European Patent Office
Prior art keywords
suction
sheet feeder
vacuum
carrier
closing
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
EP91101867A
Other languages
German (de)
English (en)
Other versions
EP0443397B1 (fr
Inventor
Rudolf Liepert
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.)
Georg Spiess GmbH
Original Assignee
Georg Spiess GmbH
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 Georg Spiess GmbH filed Critical Georg Spiess GmbH
Publication of EP0443397A1 publication Critical patent/EP0443397A1/fr
Application granted granted Critical
Publication of EP0443397B1 publication Critical patent/EP0443397B1/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
    • 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

Definitions

  • the invention relates to a sheet feeder according to the preamble of claim 1.
  • the suction devices are ventilated via a central suction air control valve which is arranged in the suction head and is controlled by means of its own cam disc.
  • this suction air control valve In the area of this suction air control valve, however, only comparatively small ventilation cross sections are normally available.
  • due to the large distance of the suction air control valve from the drag vacuums there is also a large line volume that must be ventilated.
  • there is therefore a very slow breakdown of the vacuum especially since this is comparatively low.
  • a simple adjustability of the ventilation time is possible by changing the position of the control member attached to the suction head.
  • this can be arranged in an easily adjustable manner. Since the ventilation opening or openings is or are provided in the area of the suction cup carrier, there is advantageously a very small line volume which has to be ventilated. In addition, comparatively large ventilation cross sections can be provided in the area of the vacuum cleaner carrier. The measures according to the invention therefore advantageously result in vacuum degradation taking place so rapidly that the time at which the sheet is handed over to the clock rollers is practically sufficient for this. Ventilation of the vacuum cleaner therefore only needs to be very close to or directly at the front end position of the vacuum cleaner carrier.
  • the sheets can be double guided for a comparatively long time, which ensures particularly high accuracy.
  • the measures according to the invention accordingly also enable an increase in machine speeds.
  • the ventilation opening with the associated closing element and / or the control element can expediently be designed and arranged in such a way that the control element is effective for actuating the closing element, irrespective of a pivoting position of the vacuum cleaner carrier. This ensures that the vacuum cleaner carrier can be pivoted to accomplish a so-called inclined arch adjustment, by means of which inclined arches are aligned, without this having an effect on the ventilation of the drag vacuum cleaner.
  • control element can, as already mentioned, be arranged to be adjustable. This enables simple fine adjustment of the ventilation time depending on different boundary conditions, such as the paper quality and the like.
  • a further, particularly advantageous measure can consist in the fact that the closing member has a closing surface that can be pressed from the outside onto the assigned seat, preferably by a closing spring. This ensures that the closing member is held in contact with the closing surface by the vacuum when the vacuum is applied, which ensures high operational reliability.
  • the closing element can have a pivoting lever which is provided with a valve plate and which interacts with the closing spring and which runs onto the control element.
  • the ventilation opening can be provided in the area of a central bearing piece of the vacuum cleaner carrier provided with lateral arms.
  • a particularly large ventilation cross section can advantageously be provided.
  • the pivoting lever of the closing member can expediently be designed here as a one-armed lever which extends in the direction of movement of the vacuum cleaner carrier and carries at its front end a run-up element which runs onto a control surface of the control member designed as an overrun skid.
  • a further advantageous measure can consist in the vent opening being provided in the region of this pivot axis in the case of a suction cup carrier which can be pivoted about a vertical pivot axis. This ensures that the influence of a pivoting angle of the vacuum cleaner carrier on the time of ventilation is negligible.
  • the drag vacuum carrier can have a plurality, preferably two, of ventilation openings provided in the region of its lateral arms with associated closing members.
  • This configuration is particularly suitable for retrofitting in existing sheet feeders. Another advantage can be seen in the fact that, due to the majority of the ventilation openings, a particularly large overall ventilation cross section can be achieved.
  • the control elements can expediently be designed simply as a plunger, by means of which a closing element designed as a two-armed lever can be actuated.
  • the plungers can simply be received on a rocker pivotally mounted on the suction head, the pivot axis of which is arranged parallel to the pivot axis of the drag vacuum carrier.
  • This rocker is advantageously automatically parallel to the vacuum cleaner carrier, so that all ventilation openings are opened at the same time even in the event of an inclined arch adjustment.
  • the sheet feeder on which FIG. 1 is based consists of a portal-shaped frame 1, in which a stacking table, not shown, which accommodates a stack 2 is suspended and can be raised and lowered.
  • a suction head 3 Above the stack 2 there is a suction head 3 which is provided with separating suction devices 4 which can be moved up and down and reciprocating suction devices 5 or auxiliary suction devices 6 which can be moved back and forth.
  • the separating suction devices 4 arranged in the form of a row are received on a separating suction device support 7 which is provided with laterally projecting, tubular arms and can be moved up and down.
  • the teats 5 and auxiliary teats 6, which are also arranged in rows, are received on a to-and-fro drag suction support 8 which, as can best be seen from FIG. 2, has cantilevers which project laterally from a central bearing piece 9. tubular arms 10 is provided for receiving the respectively assigned suction cups.
  • the suction cups 4 and the suction cups 5 and auxiliary suction cups 6 are connected to the respective assigned support 7 or 8, which is each designed as a vacuum line section, and via adjoining hoses 11 indicated by dashed lines in FIG. 1 with a vacuum control valve 13 accommodated on the suction head 3 connected, which is connected via a vacuum manifold 14 to a vacuum source and by means of which the suction air can be controlled.
  • the top sheet is lifted from the stack 2 with the aid of the suction cups 4. This sheet is then taken over by the teats 5 and auxiliary teats 6 and advanced by them so far that they can be taken over by transport rollers 12 arranged in the area of the leading edge of a belt table, which are used intermittently.
  • the vacuum cleaner carrier 8 included in the vacuum line itself can be provided with a ventilation opening 15 with a large cross section, to which a closing member 16 accommodated on the vacuum cleaner carrier 8 is assigned, which normally is closed by means of a closing spring 17 in FIG Is held in the closed position and is brought into its open position in the front end position of the vacuum cleaner carrier 8 by means of a control member 18 fixed to the suction head 3 in relation to the latter, in which the ventilation opening 15, which has a large cross section, is accessible from the outside for ventilation of the vacuum line.
  • a ventilation opening 15 is provided, which is arranged in the region of the support piece 9 of the suction cup carrier 8.
  • the closing member 16 assigned to this ventilation opening 15 can, as can best be seen from FIG. 2, contain a one-armed pivot lever 19 which interacts with the closing spring 17 and is mounted on the support piece 9 and is provided with a valve disk 20 which, in the closed position, on a by the end face of a closing surface 21 formed by the connection piece containing ventilation opening 21.
  • the pivot lever 19 is provided with a thrust element 22, here in the form of a thrust roller.
  • the control member 18 is designed as a runners provided with a control surface 23, on which the starting element 22 in the front end position of the vacuum cleaner carrier 8 so runs that the pivot lever 19 pivots against the closing spring force and pressure difference acting on it and thus the valve plate 20 is lifted from the closing surface 21.
  • the ventilation opening 15, which is comparatively large in comparison to the line cross section of the vacuum line, is opened, so that when the connection to the vacuum source is switched off, the vacuum is rapidly released within the vacuum line leading to the vacuum cleaners 5 or auxiliary vacuum cleaners 6.
  • the overrun skid forming the control element 18 can be fixed in the direction of movement of the suction cup support 8 on the suction head 3, as indicated by an elongated hole connection. This enables a fine adjustment of the ventilation time.
  • the control surface 23 is provided with a start-up chamfer. However, this has a high gradient to ensure short switching times.
  • the suction cup support 8 is arranged so as to enable a so-called inclined arch adjustment to be pivoted about an approximately vertical axis a.
  • the vacuum cleaner carrier 8 also changes its orientation relative to the control member 18 which is accommodated stationary on the suction head 3.
  • the ventilation opening 15 and, accordingly, the closing member 16 associated therewith are here Area of the pivot axis a of the vacuum cleaner carrier 8 is arranged.
  • the nozzle containing the ventilation opening 15 protrudes downward from the suction cup support 8 for the sake of clarity of the drawing.
  • the ventilation opening 15 can be arranged coaxially with the axis a.
  • the ventilation opening 15 is designed as a side exit. This can be located in the region of a web 24 of the vacuum cleaner carrier 9 which connects the legs 10 associated with the tubular arms.
  • the ventilation opening 15 is located on the side of the web 24 closer to the pivot axis a of the vacuum cleaner carrier 8 and thus still in such close proximity to the axis a that in the event of an inclined position of the vacuum cleaner carrier 8 there is no significant influence on the switching time.
  • two ventilation devices are arranged in the area of the lateral arms 10 of the vacuum cleaner carrier, which hold the suction cups, expediently in the area of the arms 10 assigned to the actual vacuum cups 5, and are arranged in close proximity to the respectively assigned suction cups, not shown here intended.
  • the tubes forming the arms 10 are provided with radial recesses, each of which is overlapped by a valve block 25 which is provided with a ventilation opening 26, as can best be seen from FIG. 4.
  • the ventilation opening 26 can be closed by means of a valve plate 27, which is received on a two-armed pivot lever 28 which extends transversely to the direction of movement of the vacuum cleaner carrier 8 and which is located in its middle Area on the valve block 25 is pivotally mounted and its arm remote from the plate cooperates with an associated closing spring 29.
  • each swivel lever 28 is assigned a plunger 30 fastened to the suction head 3, with respect to which the drag suction cup carrier 8 can be moved.
  • the plunger 30 assigned to the individual ventilation openings 26 can be fastened to the suction head 3 separately from one another.
  • all tappets 30, which are assigned to the valve blocks 25 arranged in alignment with one another, are received on a common rocker 31, which is pivotally mounted on the suction head 3, as indicated in FIG. 3 by the bearing block 32.
  • the plunger 30 tracks the pivoting movement of the suction cup carrier 8, so that all ventilation openings 26 provided on both sides of the pivot axis of the suction cup carrier 8 are provided simultaneously be opened.
  • the resistance initially emanating from the associated closing spring 29 when a cam 30 runs onto the associated pivot lever 38 is sufficient for the rocker 31, the pivot axis of which runs parallel to the pivot axis of the vacuum cleaner carrier 8, to be set automatically parallel to the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
EP91101867A 1990-02-17 1991-02-11 Margeur de feuilles Expired - Lifetime EP0443397B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005144A DE4005144C2 (de) 1990-02-17 1990-02-17 Bogenanleger
DE4005144 1990-02-17

Publications (2)

Publication Number Publication Date
EP0443397A1 true EP0443397A1 (fr) 1991-08-28
EP0443397B1 EP0443397B1 (fr) 1993-12-15

Family

ID=6400473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101867A Expired - Lifetime EP0443397B1 (fr) 1990-02-17 1991-02-11 Margeur de feuilles

Country Status (4)

Country Link
US (1) US5076565A (fr)
EP (1) EP0443397B1 (fr)
JP (1) JPH04213527A (fr)
DE (2) DE4005144C2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511296C2 (de) * 1995-03-28 1999-07-15 Gremser Masch Franz Vorrichtung zum Anheben und Abtransportieren flächiger Gegenstände
US5803447A (en) * 1996-09-25 1998-09-08 D&K Custom Machine Design, Inc. Method and apparatus for feeding sheets
DE19911273C2 (de) * 1999-03-13 2003-07-31 Ltg Mailaender Gmbh Verfahren und Vorrichtung zum Vereinzeln flächiger Güter
DE19947573A1 (de) 1999-10-01 2001-04-05 Heidelberger Druckmasch Ag Hub-Schleppsaugergetriebe für Bogen verarbeitende Maschine
US6231040B1 (en) * 1999-12-13 2001-05-15 Graphic Management Associates, Inc. Sucker height adjustment mechanism
DE10338192B4 (de) * 2002-09-06 2009-03-26 Heidelberger Druckmaschinen Ag Vorrichtung zum Vereinzeln von Bogen von einem Stapel
AT500466A2 (de) * 2004-07-12 2006-01-15 Bm Battery Machines Gmbh Vorrichtung zum vereinzeln von plattenförmigen gegenständen, insbesondere batterieplatten
JP2006213437A (ja) * 2005-02-02 2006-08-17 Komori Corp シート状物搬送装置
DE102007005403A1 (de) * 2007-02-03 2008-08-07 Man Roland Druckmaschinen Ag Trennsaugereinrichtung für eine Bogendruckmaschine
DE102007005404A1 (de) 2007-02-03 2008-08-07 Man Roland Druckmaschinen Ag Bogenführungseinrichtung, insbesondere für eine Bogendruckmaschine
US7976013B1 (en) * 2008-02-22 2011-07-12 Young Ronald J Cyclically controlled paper feeder with optical stack level control
CN108750769B (zh) * 2018-07-24 2023-10-27 东莞市华著机械有限公司 一种传纸机构及其清废机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6923357U (de) * 1969-06-11 1970-07-09 Heidelberger Druckmasch Ag Saugkopf an bogenanlegern fuer bogenverarbeitende maschinen
DE2163083B2 (de) * 1971-12-18 1973-10-18 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Saugkopf einer Bogenanlegevorrichtung für Druckmaschinen
DE2802475A1 (de) * 1978-01-20 1979-07-26 Windmoeller & Hoelscher Saugluftsteuerung fuer bogenanlegemaschinen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338050A (en) * 1941-09-03 1943-12-28 Continental Can Co Sheet supporting means for tin plate sheet feeders
DE1786165A1 (de) * 1968-08-26 1972-01-20 Harris Intertype Corp Steuerung fuer einen Bogenzufuehrer
US3724687A (en) * 1971-03-26 1973-04-03 Marguip Inc Panel board feeding apparatus
US4002332A (en) * 1975-04-09 1977-01-11 Acme Steel Door Corporation Automatic feed mechanism for power brake or the like
IT1149632B (it) * 1982-02-12 1986-12-03 Car Ventomatic Spa Dispositivo di prelievo e separazione dei sacchida pacco per il servizio di infilasacchi automatici
JPS6121897A (ja) * 1984-07-10 1986-01-30 株式会社東芝 人工衛星の三軸姿勢制御装置
CS253506B1 (en) * 1985-10-10 1987-11-12 Jaroslav Jiruse Loading equipment
IT1208270B (it) * 1987-04-08 1989-06-12 Zanasi Nuova Spa Apparato interruttore parzializzatore dell'aspirazione nelle ventose di alimentazione degli astucci vuoti nelle cosidette astucciatrici automatiche

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6923357U (de) * 1969-06-11 1970-07-09 Heidelberger Druckmasch Ag Saugkopf an bogenanlegern fuer bogenverarbeitende maschinen
DE2163083B2 (de) * 1971-12-18 1973-10-18 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Saugkopf einer Bogenanlegevorrichtung für Druckmaschinen
DE2802475A1 (de) * 1978-01-20 1979-07-26 Windmoeller & Hoelscher Saugluftsteuerung fuer bogenanlegemaschinen

Also Published As

Publication number Publication date
DE59100702D1 (de) 1994-01-27
US5076565A (en) 1991-12-31
DE4005144C2 (de) 1994-02-10
EP0443397B1 (fr) 1993-12-15
DE4005144A1 (de) 1991-08-22
JPH04213527A (ja) 1992-08-04

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