EP0443397B1 - Margeur de feuilles - Google Patents

Margeur de feuilles Download PDF

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Publication number
EP0443397B1
EP0443397B1 EP91101867A EP91101867A EP0443397B1 EP 0443397 B1 EP0443397 B1 EP 0443397B1 EP 91101867 A EP91101867 A EP 91101867A EP 91101867 A EP91101867 A EP 91101867A EP 0443397 B1 EP0443397 B1 EP 0443397B1
Authority
EP
European Patent Office
Prior art keywords
drag
carrier
sheet feeder
suckers
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.)
Expired - Lifetime
Application number
EP91101867A
Other languages
German (de)
English (en)
Other versions
EP0443397A1 (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.
  • a sheet feeder with suction cups is known with which the sheets are lifted from a stack and guided to downstream conveyor rollers.
  • a three-way valve attached to the suction cup support is provided to control the suction air.
  • This comprises a housing in which a valve rod is guided so as to be displaceable in or against the sheet transport direction.
  • a valve plate In the middle of the valve rod there is a valve plate, which can alternately fit tightly against a seat of an outside air chamber of small diameter or a suction air chamber of large diameter. Between the two chambers a room is provided in which a line leads to the suction cups.
  • the three-way valve is controlled by the valve rod alternately starting at a front and a rear stop during the reciprocating movement of the suction cups.
  • valve disk is brought into contact either with its seat on the outside air chamber or with its seat on the suction air chamber.
  • this ends the movement of the suction cups in or against the transport direction of the sheets.
  • a pressure spring also acts on the valve plate, the force of which is dimensioned such that it is greater than the force exerted by the air in the outside air chamber in one position, but smaller than the force of the outside air acting on the entire valve plate surface in the other position.
  • valve rod must be guided on both sides of the valve disk with as little play as possible.
  • the two valve seats must run exactly parallel to the valve plate and perpendicular to the valve rod. This requires high machining accuracy.
  • the force exerted by the compression spring must be within very narrow limits so that the desired function is ensured.
  • the valve is switched over by starting the valve rod at one of the two stops.
  • this since this not only controls the movement of the valve plate of the three-way valve, but also stops the movement of the entire suction arrangement, strong impacts occur in particular at higher arc speeds when placing the valve plate on one of the valve seats. This leads to increased wear.
  • the control member is preferably arranged on the suction head in an adjustable manner. This enables a simple fine adjustment of the ventilation time depending on different boundary conditions, such as the paper quality and the like.
  • valve plate of the closing member can be pressed from the outside against an assigned closing surface to close off the ventilation opening. This ensures that the closing member is kept in contact with the closing surface when the suction is applied to the vacuum, which ensures high operational reliability.
  • 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 locking 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 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, also arranged in rows, are received on a to-and-fro drag suction support 8 which, as can best be seen in 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 suction cups 4 With the help of the suction cups 4, the top sheet is lifted from the stack 2. 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 suction devices 5 or auxiliary suction devices 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 with respect to the control member 18 which is 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 pivot axis a of the vacuum cleaner carrier 8 side of the web 24 and thus still in such close proximity to the axis a that in the case 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 intended.
  • the tubes forming the arms 10 are provided with radial recesses which are each overlapped by a valve block 25 which is provided with a ventilation opening 26, as can best be seen from FIG.
  • 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 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 accommodated on a common rocker 31 which is pivotably 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)

Claims (9)

  1. Margeur de feuilles comprenant une tête aspirante (3) qui est munie d'aspirateurs de séparation (4) logés sur un support (7) mobile de haut en bas et d'au moins une série d'aspirateurs d'entraînement (5) logés sur un support (8) mobile en va-et-vient, partiellement en synchronisation avec des moyens de transport procurant un guidage ultérieur, les aspirateurs d'entraînement étant alimentés avec du vide lors de la réception d'une feuille par les aspirateurs de séparation (4) et pouvant être alimentés avec de l'air lors de la livraison de la feuille aux moyens de transport procurant un guidage ultérieur, dans lequel le support (8) des aspirateurs d'entraînement mobile en va-et-vient et réalisé en une section de conduit de vide est muni d'au moins une ouverture d'aération (15 ou 26) et d'un organe d'obturation (16) attribué à cette dernière, l'organe d'aspiration pouvant être soulevé de son siège au sein du domaine de synchronisation des aspirateurs d'entraînement (5) et des moyens de transport (12) procurant un guidage ultérieur, au moyen d'un organe de commande (18 ou 30, 31) fixé à la tête aspirante (3), caractérisé en ce que l'organe d'obturation (16) est réalisé en un levier pivotant (19 ou 28) muni d'une tête de soupape (20 ou 27), qui se trouve sous l'effet d'un ressort de fermeture (17 ou 29) et qui peut pivoter dans la direction d'ouverture à l'intervention du démarrage de l'organe de commande (18 ou 30, 31).
  2. Margeur de feuilles selon la revendication 1, caractérisé en ce que l'organe de commande (18) est disposé de manière réglable sur la tête aspirante (3).
  3. Margeur de feuilles selon la revendication 1 ou 2, caractérisé en ce que la tête de soupape (20 ou 27) de l'organe d'obturation (16) peut être pressée depuis l'extérieur à des fins d'obturation de l'ouverture d'aération (15 ou 26) contre une surface d'obturation (21) qui lui est attribuée.
  4. Margeur de feuilles selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'ouverture d'aération (15) est prévue dans la zone d'un élément d'appui central (9) du support (8) des aspirateurs d'entraînement, muni de bras latéraux, dans lequel le levier pivotant (19) est réalisé de préférence en forme d'un levier à bras unique s'étendant dans la direction de mouvement du support (8) des aspirateurs d'entraînement, le levier portant, à son extrémité avant, un élément de démarrage (22) qui est réalisé de préférence en forme de rouleau de démarrage.
  5. Margeur de feuilles selon la revendication 4, caractérisé en ce que l'organe de commande (18) est réalisé en forme de patin de mise en contact muni d'une surface de commande (23), sur lequel l'organe d'obturation vient se mettre en contact avec son élément de démarrage (22).
  6. Margeur de feuilles selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'ouverture d'aération (15) est prévue dans la zone d'une traverse (24) de l'élément d'appui (9) du support (8) des aspirateurs d'entraînement, prévue entre les bras (10) attribués aux aspirateurs d'entraînement (5) et les aspirateurs auxiliaires d'entraînement (6) prévus parallèlement à ces derniers, de préférence en forme d'une sortie latérale tournée vers l'axe de pivotement du support (8) des aspirateurs d'entraînement.
  7. Margeur de feuilles selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'ouverture d'aération (15) est prévue dans la zone de l'axe de pivotement (a), à côté d'un support (8) des aspirateurs d'entraînement pivotant autour d'un axe de pivotement vertical (a).
  8. Margeur de feuilles selon l'une quelconque des revendications précédentes 1 à 3, caractérisé en ce que le support (8) des aspirateurs d'entraînement présente plusieurs ouvertures d'aération (26), de préférence deux dans la zone de ses bras latéraux (10), de préférence dans la zone de ses bras antérieurs (10) sur lesquels viennent se disposer les aspirateurs d'entraînement (5), ces ouvertures d'aération étant munies d'organes d'obturation correspondants et étant prévues pour être disposées de préférence à proximité immédiate des aspirateurs d'entraînement (5), dans lequel les organes de commande sont respectivement réalisés en forme de poussoirs (30) qui sont de préférence logés sur une bascule (31) montée en pivotement sur la tête aspirante (3), dont l'axe de pivotement est disposé parallèlement à l'axe de pivotement du support (8) des aspirateurs d'entraînement.
  9. Margeur de feuilles selon la revendication 8, caractérisé en ce que les organes d'obturation sont réalisés en forme de leviers à deux bras (28) s'étendant transversalement par rapport à la direction de mouvement du support (8) des aspirateurs d'entraînement, les leviers venant se mettre en contact avec leurs bras éloignés de la surface d'obturation sur l'organe de commande qui leur est attribué sous forme d'un poussoir (30) venant se loger sur une bascule (31) montée sur la tête aspirante (3).
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
DE4005144 1990-02-17
DE4005144A DE4005144C2 (de) 1990-02-17 1990-02-17 Bogenanleger

Publications (2)

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

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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
DE102007005404A1 (de) 2007-02-03 2008-08-07 Man Roland Druckmaschinen Ag Bogenführungseinrichtung, insbesondere für eine Bogendruckmaschine
DE102007005403A1 (de) * 2007-02-03 2008-08-07 Man Roland Druckmaschinen Ag Trennsaugereinrichtung 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

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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
DE6923357U (de) * 1969-06-11 1970-07-09 Heidelberger Druckmasch Ag Saugkopf an bogenanlegern fuer bogenverarbeitende maschinen
US3724687A (en) * 1971-03-26 1973-04-03 Marguip Inc Panel board feeding apparatus
DE2163083C3 (de) * 1971-12-18 1974-05-16 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Saugkopf einer Bogenanlegevorrichtung für Druckmaschinen
US4002332A (en) * 1975-04-09 1977-01-11 Acme Steel Door Corporation Automatic feed mechanism for power brake or the like
DE2802475C3 (de) * 1978-01-20 1981-01-22 Windmoeller & Hoelscher, 4540 Lengerich Saugluftsteuerung für Bogenanlegemaschinen
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

Also Published As

Publication number Publication date
EP0443397A1 (fr) 1991-08-28
JPH04213527A (ja) 1992-08-04
DE59100702D1 (de) 1994-01-27
DE4005144C2 (de) 1994-02-10
US5076565A (en) 1991-12-31
DE4005144A1 (de) 1991-08-22

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