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EP0270793A1 - Dispositif à progression des feuilles vers des piles - Google Patents

Dispositif à progression des feuilles vers des piles Download PDF

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Publication number
EP0270793A1
EP0270793A1 EP87115462A EP87115462A EP0270793A1 EP 0270793 A1 EP0270793 A1 EP 0270793A1 EP 87115462 A EP87115462 A EP 87115462A EP 87115462 A EP87115462 A EP 87115462A EP 0270793 A1 EP0270793 A1 EP 0270793A1
Authority
EP
European Patent Office
Prior art keywords
suction
conveyor
belt
sheets
transport direction
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.)
Withdrawn
Application number
EP87115462A
Other languages
German (de)
English (en)
Inventor
Horst Kriefall
Helmut Rohrbach
Siegfried Fischer
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.)
Grenzebach GmbH and Co KG
Original Assignee
Babcock BSH 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 Babcock BSH AG filed Critical Babcock BSH AG
Publication of EP0270793A1 publication Critical patent/EP0270793A1/fr
Withdrawn legal-status Critical Current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
    • B65H29/26—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
    • B65H29/32—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles from pneumatic, e.g. suction, carriers
    • 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
    • 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
    • B65H2406/32—Suction belts
    • B65H2406/323—Overhead suction belt, i.e. holding material against gravity

Definitions

  • the invention relates to a device for depositing sheets onto stacks according to the preamble of patent claim 1.
  • suction conveyors are preferably used, on which they are conveyed by vacuum and can be thrown off by interrupting the vacuum.
  • the required braking of the sheets in front of the stacking point is carried out by a braking device which engages the sheet ends and which conveys at a significantly lower speed than the suction conveyor.
  • the bow ends are pressed by a deflection device from the suction conveyor onto the braking device.
  • the suction conveyor consists of suction conveyor rollers or belts which are arranged at a distance from one another along the conveying path, the space being bridged by floating bars with blowing nozzles, so that the sheets are conveyed in a floating manner on this route.
  • a suction brake roller is arranged below the conveying plane, onto which the incoming sheet ends are pressed with a deflection device consisting of several cams arranged on a common shaft.
  • the last suction conveyor roller - in the direction of transport - is arranged at the beginning of the stacking point. Your vacuum is switched off periodically so that the detachment of the bow ends is promoted.
  • the sheets leaving the suction brake roller have a residual speed which allows them to slide against a stop of the tray until they strike.
  • the invention has for its object to provide a generic device with which large sheets can be deposited even at high speed.
  • the sheets are guided precisely at their beginning by the suction belt conveyor and at their end by the brake band.
  • the storage takes place in such a way that the ends of the sheets are simultaneously pulled off the suction belts during braking from the brake band.
  • the beginning of the sheet is held in place by the suction belts until the end of the stack is reached. At no time do the arches float freely.
  • a further advantage is that several successive sheets can be braked simultaneously by the brake band, the beginning of each sheet partially interrupting the negative pressure of the previous sheet on the suction belt conveyor and thus assisting its detachment from the suction belt conveyor.
  • the subclaims contain preferred embodiments of a stacking device according to the invention.
  • the friction of the arches on the underside of the suction box is significantly reduced.
  • the distribution of the vacuum between the suction box and the bends can be adjusted.
  • the friction of the arches on the underside of the suction box is further reduced by the feature of claim 3.
  • the pressure zones can be acted upon in the transport direction to save energy and to optimize the depositing process with a decreasing negative pressure.
  • the embodiment according to claim 6 enables a lower belt tension and thus a lower drive power without a pressure drop occurring due to the suction of false air.
  • the bow ends for pulling the sheets from the suction belt conveyor and for placing them on the stack are guided on an optimal path.
  • Claim 8 contains a deflection device with which the bow ends can be pressed gently and sufficiently long on the brake band.
  • braking and pulling the sheets from the suction belt conveyor is optimally matched to the speed of the incoming sheets.
  • a stacking device has a base frame 1, in which a suction box 2, which is divided into three suction zones 2.1-2.3 in the conveying direction, is suspended at a height above the maximum stacking height.
  • An independently controllable suction fan 3 is connected to each suction zone 2.1 - 2.3.
  • the width of the suction box 2 corresponds to the width of the sheets to be stacked.
  • it is encircled by three suction belts 5.1 - 5.3 driven by rollers 4 and provided with elongated holes on its underside in the conveying direction - from left to right in FIG. 1.
  • the lower run of each suction belt 5 lies against two parallel guide strips 6 attached to the underside of the suction box 2, between which the suction box underside is broken through along the entire conveying path by suction openings 7.
  • Two (5.1, 5.3) of the suction belts 5 run on the side edges, one (5.2) in the middle of the suction box 2. They are returned via deflection rollers 8 above the suction box 2. Between the pairs of guide strips 6, parallel spacer strips 9 are fastened to the underside of the suction box and keep the arches at a distance from the underside of the suction box.
  • the guide and spacer strips 6 and 9 do not run exactly horizontally along the conveyor path, but along a downward curved line in order to adapt to the sag of the suction belts 5. In the described embodiment, this is achieved in that the individual suction zones 2.1-2.3 do not come into contact with one another in an aligned but rather angled manner.
  • the guide strips 6 thus run along a section from a polygon circumference.
  • the outer suction belts 5.1, 5.3 can be displaced transversely, and there are also suction openings 10 between each inner one of the associated guide strips 6 and the respectively adjacent spacer strip 9.
  • the suction openings 7 and 10 can be closed with a perforated plate 11 which can be displaced transversely. which are each not covered by suction straps 5.
  • the adjacent spacer strips 9 thus take over the function of guide strips if sheets with a smaller width are to be stacked.
  • a stacking point 12 On the outlet side, below the suction box 2, there is a stacking point 12 with a height-adjustable stacking table, e.g. a scissor lift table.
  • the conveyor path of the suction belt conveyor 2, 5 thus extends over the entire length of the stacking point 12.
  • a braking device 13 is attached below the suction box 2 on vertical stands of the frame 1, which is shown enlarged in FIG.
  • the braking device 13 is built up from an evacuable suction chamber 14 which extends across the width of the suction box and is surrounded by three driven, perforated bands (brake bands 15).
  • the cross section through the suction chamber 14 has approximately the shape of a standing kite with rounded corners.
  • the two upper boundary surfaces 14.1, 14.2 - they support the upper runs 15.1 of the brake bands 15 - are angled at an obtuse angle.
  • the inlet-side upper boundary surface 14.1 slightly rises in the transport direction against the horizontal, the outlet-side upper boundary surface 14.2 either runs horizontally or - as in the present example, is slightly inclined in the transport direction.
  • the outlet-side deflection roller 16 of the upper runs 15.1 of the brake bands 15 is arranged directly in front of the stacking point 12.
  • the belts 15 are driven by a drive roller 17 below the suction chamber 14.
  • a driven shaft 17 is mounted transversely in the longitudinal members of the frame 1 which carry the suction box 2.
  • three rotary brushes 18 are distributed over the width of the suction box 2, which has cutouts at the corresponding points for this purpose.
  • Each rotary brush 18 is built up from a cylindrical base body 18.1, which is circumferentially at an angle between 180 ° and 270 °, in the present example 220 °, with radially protruding bristles 18.2 which become longer on one side.
  • the rotary brushes 18 are arranged in such a way that they completely disappear into the suction box 2 during one revolution and thus do not hinder the entry of an arc, and also extend with their most radially projecting bristles 18.2 to the brake bands 15.
  • FIG. 5 shows a snapshot during the laying down.
  • the sheets 19 to be stacked - in the present example impregnated sheets of paper of approximately 5300 mm in length and approximately 1800 mm in width - are continuously fed to the suction belt conveyor 2.5 at a certain distance from one another by a belt conveyor (not shown). From this, they are suspended from the vacuum on the suction belt 5, at a speed of approx. 240 m / min. transported to the stacking station 12.
  • the rotational speed of the rotary brush 18 is so synchronized with the speed of the suction belt 5 that when the sheets 19 enter the region above the brake band 15 the peripheral part not covered with bristles 18.2 points downwards, ie the brush 18 is immersed in the suction box 2.
  • the sheets 19 are braked at this moment to the speed of the brake belt 15, which is only 1/8 - 1/15, in the present case 1/10, of the suction belt conveyor is 2.5.
  • the sheets 19 are still held at their front part by the suction belt conveyor 2.5. Due to the downward-acting component of the braking force, they are withdrawn from the end of the suction belt 5 during further transport.
  • the detachment is supported by the subsequent sheets 19, which partially interrupt the underpressure of the preceding sheets 19 at their still unbraked entry into the area of the stacking point 12 and thus peel them off from the suction belts 5.
  • the individual zones 2.1-2.3 of the printing box 2 are subjected to a decreasing negative pressure in the transport direction.
  • the first negative pressure zone 2.1 with the greatest negative pressure extends into the region of the rotary brush 18 in order to compensate for the pressure losses occurring at the cutouts in the pressure box 2.
  • FIG. 1 Another preferred embodiment of a stacking device according to the invention, which is not shown, has two stacking points arranged one behind the other in the conveying direction, each with a brake band, in order to enable the full stack to be exchanged during operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP87115462A 1986-12-02 1987-10-22 Dispositif à progression des feuilles vers des piles Withdrawn EP0270793A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3641157 1986-12-02
DE19863641157 DE3641157A1 (de) 1986-12-02 1986-12-02 Vorrichtung zum ablegen von boegen auf stapel

Publications (1)

Publication Number Publication Date
EP0270793A1 true EP0270793A1 (fr) 1988-06-15

Family

ID=6315287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115462A Withdrawn EP0270793A1 (fr) 1986-12-02 1987-10-22 Dispositif à progression des feuilles vers des piles

Country Status (3)

Country Link
US (1) US4824092A (fr)
EP (1) EP0270793A1 (fr)
DE (1) DE3641157A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353623A1 (fr) * 1988-08-03 1990-02-07 Hilmar Vits Dispositif pour déposer des feuilles sur une station d'empilage
WO1991008974A1 (fr) * 1989-12-12 1991-06-27 Jagenberg Aktiengesellschaft Procede et dispositif de freinage de feuilles a empiler, notamment de feuilles de papier ou de carton
DE102006009785A1 (de) * 2006-03-01 2007-09-06 E.C.H. Will Gmbh Vorrichtung, Verfahren und Anlage zum Ansammeln von Flachteilen zu Stapeln
EP2090534A3 (fr) * 2008-02-15 2011-12-21 Tocchio S.r.l. Dispositif et procédé pour déplacer des feuilles de papier imprégnées et/ou recouvertes de résine polymérique, en particulier pour le revêtement de sol ou le recouvrement de meubles, murs, etc.

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2516640Y2 (ja) * 1990-06-25 1996-11-06 株式会社小森コーポレーション 紙かわし装置
US5286016A (en) * 1992-09-16 1994-02-15 Brackett, Inc. Apparatus and method for inserting sheets into lapstream in a direction opposite to conveying direction
DE4316220A1 (de) * 1993-05-14 1995-01-26 Gremser Masch Franz Vorrichtung zum Ablegen von Bogen
WO1995001931A1 (fr) * 1993-07-09 1995-01-19 Ziegler & Herzinger Maschinenbau Gmbh Procede et dispositif pour le depot ou l'empilage de feuilles amenees en serie
US6145833A (en) * 1998-06-02 2000-11-14 Marquip, Inc. Rotary brush sheet deceleration device
US6494452B1 (en) 2000-10-19 2002-12-17 Krzysztof Karasiewicz Method and apparatus to decelerate printed product in a stacking process
EP1247771B1 (fr) * 2001-04-03 2004-12-08 Mars Incorporated Magasin pour des billets de banque
US20050028609A1 (en) * 2003-07-17 2005-02-10 Langemann Peter J. Flow-monitoring method and device
EP2711318B1 (fr) * 2012-09-25 2015-08-12 Multigraf AG Dispositif et procédé de transport de feuilles ainsi que le système de transport

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1931208B2 (de) * 1969-06-20 1973-10-04 Vits-Maschinenbau Gmbh, 4018 Langenfeld Vorrichtung zum Fördern und Ablegen von Bögen aus Papier und anderem blattförmigen Material in Stapeln
DE2348320B2 (de) * 1973-09-26 1978-04-20 Vits-Maschinenbau Gmbh, 4018 Langenfeld Vorrichtung zum stapelweisen Ablegen einzelner gleichlanger Bogen
DE2841658B1 (de) * 1978-09-25 1980-01-17 Vits Maschb Gmbh Vorrichtung zum Schuppen und Ablegen von Bogen auf einen Stapel
DE2903771A1 (de) * 1978-07-31 1980-08-07 Jagenberg Werke Ag Saugbremsvorrichtung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245702B (de) * 1961-06-02 1967-07-27 Jagenberg Werke Ag Vorrichtung zum Foerdern, UEberlappen und Ablegen von Bogen aus Papier od. dgl.
DE1252139C2 (de) * 1965-04-13 1968-04-25 C Mueller Kg Vorrichtung zum ablegen von Furnierblättern auf einem Stapel
DE1511266A1 (de) * 1966-07-22 1969-07-24 Paul Lippke Verfahren und Vorrichtung zum Foerdern und Ablegen bzw. zum Foerdern und Sortieren von Bogen aus Papier,Karton,Metallfolien od.dgl.
DE1282556B (de) * 1966-12-01 1968-11-07 Ungerer Irma Fuer verschiedene Blechgroessen geeignete Anlage zum selektiven Foerdern und Stapeln von aufeinanderfolgend zugefuehrten Blechtafeln
DE1906090C3 (de) * 1969-02-07 1978-12-07 The Bronx Engineering Co. Ltd., Lye, Stourbridge (Grossbritannien) Vorrichtung zum Fördern und Stapeln von flächigen Gütern mit empfindlicher Oberfläche, insbesondere solche aus Kunststoff und anderen empfindlichen Materialien
US3730517A (en) * 1971-05-03 1973-05-01 Harris Intertype Corp Sheet conveyor apparatus and method
DE2343678A1 (de) * 1973-08-30 1975-03-13 Schroeter & Bake Werk Fuer Mod Bogenablegevorrichtung
DE2460504A1 (de) * 1974-12-20 1976-07-01 Heidelberger Druckmasch Ag Bogenfoerdervorrichtung an druckmaschinen
DE2725547C2 (de) * 1977-06-07 1983-12-22 De La Rue Giori S.A., 1003 Lausanne Verfahren und Vorrichtung zum fächerartigen Übereinanderschieben von bogen- oder heftförmigen Gegenständen
FR2478047A1 (fr) * 1980-03-13 1981-09-18 Air Ind Dispositif pour la manutention d'un materiau sous forme de plaque
DE3343811A1 (de) * 1983-12-03 1985-06-13 Babcock-BSH AG vormals Büttner-Schilde-Haas AG, 4150 Krefeld Saugriemenfoerderer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1931208B2 (de) * 1969-06-20 1973-10-04 Vits-Maschinenbau Gmbh, 4018 Langenfeld Vorrichtung zum Fördern und Ablegen von Bögen aus Papier und anderem blattförmigen Material in Stapeln
DE2348320B2 (de) * 1973-09-26 1978-04-20 Vits-Maschinenbau Gmbh, 4018 Langenfeld Vorrichtung zum stapelweisen Ablegen einzelner gleichlanger Bogen
DE2903771A1 (de) * 1978-07-31 1980-08-07 Jagenberg Werke Ag Saugbremsvorrichtung
DE2841658B1 (de) * 1978-09-25 1980-01-17 Vits Maschb Gmbh Vorrichtung zum Schuppen und Ablegen von Bogen auf einen Stapel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353623A1 (fr) * 1988-08-03 1990-02-07 Hilmar Vits Dispositif pour déposer des feuilles sur une station d'empilage
WO1991008974A1 (fr) * 1989-12-12 1991-06-27 Jagenberg Aktiengesellschaft Procede et dispositif de freinage de feuilles a empiler, notamment de feuilles de papier ou de carton
US5265861A (en) * 1989-12-12 1993-11-30 Jagenberg Aktiengesellschaft Sheet braking method and device with downward deflection of sheet ends for shingling
DE102006009785A1 (de) * 2006-03-01 2007-09-06 E.C.H. Will Gmbh Vorrichtung, Verfahren und Anlage zum Ansammeln von Flachteilen zu Stapeln
EP2090534A3 (fr) * 2008-02-15 2011-12-21 Tocchio S.r.l. Dispositif et procédé pour déplacer des feuilles de papier imprégnées et/ou recouvertes de résine polymérique, en particulier pour le revêtement de sol ou le recouvrement de meubles, murs, etc.

Also Published As

Publication number Publication date
US4824092A (en) 1989-04-25
DE3641157A1 (de) 1988-06-09

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Inventor name: ROHRBACH, HELMUT