EP0806389B1 - Dispositif pour transporter un courant de feuilles se chevauchant - Google Patents

Dispositif pour transporter un courant de feuilles se chevauchant Download PDF

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Publication number
EP0806389B1
EP0806389B1 EP97105895A EP97105895A EP0806389B1 EP 0806389 B1 EP0806389 B1 EP 0806389B1 EP 97105895 A EP97105895 A EP 97105895A EP 97105895 A EP97105895 A EP 97105895A EP 0806389 B1 EP0806389 B1 EP 0806389B1
Authority
EP
European Patent Office
Prior art keywords
suction
sheet
distance
conveyor table
suction box
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
EP97105895A
Other languages
German (de)
English (en)
Other versions
EP0806389A3 (fr
EP0806389A2 (fr
Inventor
Maren Greive
Heiner Luxem
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 EP0806389A2 publication Critical patent/EP0806389A2/fr
Publication of EP0806389A3 publication Critical patent/EP0806389A3/fr
Application granted granted Critical
Publication of EP0806389B1 publication Critical patent/EP0806389B1/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
    • B65H11/00—Feed tables
    • B65H11/002—Feed tables incorporating transport belts
    • B65H11/005—Suction belts
    • 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
    • B65H2406/322—Suction distributing means
    • 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
    • B65H2406/322—Suction distributing means
    • B65H2406/3223—Suction distributing means details of the openings in the belt, e.g. shape, distribution

Definitions

  • the invention relates to a device for conveying a scaled in particular Stroms from sheet to a sheet processing machine, with a conveyor table that is provided with at least one endless conveyor belt which can be driven all around it, with a vacuum box under the conveyor table, which is pressurized is connected to the underside of the conveyor belt via suction openings in the conveyor table, which is provided with continuous suction holes.
  • suction belt tables the general lies Problem in that the first and the last sheet must be transported safely.
  • the promotion of a shingled stream of sheets on the suction belt table can be divide it into three phases.
  • the first phase can be characterized in that the first Sheet that is pushed onto the suction belt by a separating device, should be sucked onto the perforated conveyor belt with as little slip as possible.
  • the suction power is fundamentally reduced by that only a certain area of the conveyor belt is covered by the first sheet and thus a lot of incorrect air is sucked in, so that the suction effect is limited.
  • the third phase of the promotion of a shingled arc stream concerns the promotion the last arc of the shingled stream.
  • This bow is about his entire length sucked onto the conveyor belt and is therefore much stronger on the Conveyor belt fixed when the partially overlapping sheets of the scaled Arc current.
  • the overlapping of the individual sheets causes the sheets are only in contact with the conveyor belt with a fraction of their surface and are therefore subject to a lower suction effect.
  • the last sheet remains its transport against the front brands, the one prevailing in the vacuum belt table Exposed to negative pressure, the front edge of the last sheet can on the one hand Front marks pressed in or, on the other hand, the lateral alignment is not insignificant be hindered.
  • DE 44 16 289 A1 is a device for conveying a particular scaled stream of sheets to a sheet processing machine known.
  • the at DE 44 16 289 A1 provided suction box is in by means of profiles arranged therein individual suction chambers divided so that they are further away from the suction source Arranged areas can apply an effective vacuum, which is not due to the Influence of leaks is influenced.
  • DE-A 11 81 240 is a device for conveying sheets to an arc processing machine with a suction channel known, the two spaced apart Suction openings are assigned. The cross section of the suction channel is over the entire Transport route constant.
  • the invention has for its object a device for conveying a in particular to create shingled stream of arches, in which also the first and the last sheet to be processed is transported safely.
  • the advantage of the invention is in particular that in the invention Single chamber suction box a small space-saving size can be realized.
  • suction sources e.g. blowers
  • low power can be used.
  • a particular advantage is that a complex subdivision of the Suction box seen in several in the sheet transport direction, arranged one behind the other Chambers is not necessary.
  • a conveyor table 1 is provided with two parallel conveyor belts 2 running around it between a stack 4 and alignment means 6 in the form of front marks 7 and / or Side marks 8 arranged.
  • the conveyor belts 2 are by means of a deflecting roller 9 and Belt drive roller 11 deflected, this a non-slip, z. B. rubberized surface having.
  • the conveyor belts 2 have through openings 12 and one coated underside 13 with a small coefficient of friction.
  • the described Embodiment has two conveyor belts 2, as is the sheet transport large format sheets required.
  • Conveyor tables 1 can be used with only one conveyor belt 2 if they are correspondingly small Sheet formats are to be processed.
  • the openings 12 of the conveyor belts 2 are in the sheet transport direction (arrow) guided over the conveyor table 1 that they are in register with openings 14 at the Top 16 of the conveyor table 1 arrive.
  • the openings 12, 14 connect the top of the conveyor belts 2, each with one arranged under the conveyor table 1 Suction chamber 17 of a one-chamber suction box 18.
  • Each suction box 18 has two - in Sheet transport direction seen - spaced apart Suction ports 19, 21.
  • a cross-sectional area A of the suction port 19; 21 is the same size as a cross-sectional area B of the suction box 18.
  • a distance A of the rear, i.e. H. seen first in the sheet transport direction Suction port 19 of upstream funding, in the form of Belt drive roller 11 in cooperation with an arranged clock roller 22, is equal to the smallest preselectable scale length 1 (e.g. 200 mm).
  • a distance b of the front, d. H. seen in the sheet transport direction - second suction port 21, of the Front marks 7 correspond at most to the length of the smallest format.
  • the Suction ports 19 and 21 are in an outer side wall of the suction box 18 attached and by means of air hoses 23 to 26 provided with a housing 27 connected.
  • a suction source in the form of a radial fan 28 is attached to the housing 27 flanged.
  • Inside the housing 27 there is a pivotably arranged one Air-guiding flap 29 is arranged, which is infinitely variable from a first end position I into a second end position II is transferable.
  • a remotely controllable control element in the form of a working cylinder 31 provided, which engages with its piston rod 32 on the air guide flap 29.
  • the air guide flap 29 is brought into the first end position I, so that the total suction power of the radial fan 28 switched to the rear suction port 19 is.
  • a first sheet 33 of the clock roller 22 and with this interacting belt drive roller 11 so far in the sheet transport direction (arrow) transported until the leading edge of the sheet 33 the suction port 19th covered.
  • a is covered in the area covered by the sheet 33 Vacuum in the suction chamber 17 of the suction box 18 according to the diagram in FIG. 1 generated. This has the effect that the first sheet 33 to be transported is already safely on the Conveyor belt 12 is sucked.
  • the second and the further sheets 33 are now from the Transport elements 11,22 continuously transported in cycles until a flow is formed from shingled arches 33, the conveyor table 1 and thus the Fully covers openings 12 of the conveyor belt 2.
  • the position of the air guide flap 29 can here assume both the first and the second end positions I; II. It is also possible that any other position is continuously set between the end positions.
  • the air guide flap 29 spent in the second end position II.
  • the suction air source is turned off. Now ambient air can come on the rear edge of the sheet 33 flow into the suction chamber 17 of the suction box 18. This causes the suction force on the underside of the sheet 33 to decrease and only in a small area between the suction port 21 and the start 34 of the suction box 18th is effective. By this measure, the bow 33 can be easily laterally Align the transport direction.
  • suction box 18 in to provide its front area with a variably adjustable suction chamber 17.
  • the bottom of the suction box 18 is designed as a pivotable flap 36, wherein the pivot point is in the area of the front suction opening 21.
  • a length L of Flap 36 is designed so that a distance c between the front marks 7 and End 37 of the flap 36 is larger than the largest format length to be processed Sheet 33.
  • Swiveling the flap 36 leads to an increase in the suction space in the front Area and favors the ventilation of the suction box 18 during transportation of the last one processing bow.

Claims (8)

  1. Dispositif pour transporter une suite de feuilles, notamment en chevauchement, jusqu'à une machine de traitement des feuilles, comportant une table de transport (1), qui est équipée d'au moins une bande de transport sans fin (2) pouvant être entraínée tout en circulant autour de la table, une boíte aspirante placée en dépression, qui est disposée au-dessous de la table de transport et est reliée à la partie inférieure de la bande de transport par l'intermédiaire d'ouvertures d'aspiration (14) formées dans la table de transport et qui comportent des trous traversants d'aspiration (12) et dans lequel une seule boíte aspirante (18) formée par une seule chambre d'aspiration (17) est associée à chaque bande de transport (2) et - vu dans la direction de transport des feuilles - la boíte d'aspiration (18) comporte au moins deux raccords d'aspiration (19, 21) distants l'un de l'autre, caractérisé en ce qu'une partie avant de la boíte d'aspiration (18) possède une chambre d'aspiration dont la section transversale et le volume sont accrus.
  2. Dispositif selon la revendication précédente, caractérisé en ce que le raccord d'aspiration avant (21), qui est tourné vers la machine de traitement des feuilles, est disposé à une distance (b) de moyens prévus d'orientation (7, 8), qui correspond au maximum à la longueur du format de la plus petite feuille devant être traitée.
  3. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la tubulure d'aspiration (19), qui est disposée dans une partie arrière tournée à l'opposé de la machine de traitement des feuilles, est située à une distance (a) de la pile de feuilles (4), qui correspond à la longueur la plus faible de chevauchement (1) devant être traitée.
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les raccords d'aspiration (19, 21) peuvent être chargés par de l'air d'aspiration et qu'à chaque fois l'un des raccords d'aspiration (19, 21) peut être débranché.
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu un volet commutable (29) de guidage de l'air.
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la boíte d'aspiration (18) possède une section transversale (B) qui correspond à la section transversale (A) d'un raccord d'aspiration (19;21).
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que pour accroítre l'espace d'aspiration, il est prévu un clapet monté pivotant (36).
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'accroissement de l'espace d'aspiration est situé à une distance (c) des marques avant (7), qui est supérieure à la longueur de format devant être traitée.
EP97105895A 1996-05-10 1997-04-10 Dispositif pour transporter un courant de feuilles se chevauchant Expired - Lifetime EP0806389B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19618870 1996-05-10
DE19618870A DE19618870A1 (de) 1996-05-10 1996-05-10 Vorrichtung zum Fördern eines insbesondere geschuppten Stroms von Bogen zu einer bogenverarbeitenden Maschine

Publications (3)

Publication Number Publication Date
EP0806389A2 EP0806389A2 (fr) 1997-11-12
EP0806389A3 EP0806389A3 (fr) 1998-12-09
EP0806389B1 true EP0806389B1 (fr) 2002-07-24

Family

ID=7793951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105895A Expired - Lifetime EP0806389B1 (fr) 1996-05-10 1997-04-10 Dispositif pour transporter un courant de feuilles se chevauchant

Country Status (4)

Country Link
US (1) US5951007A (fr)
EP (1) EP0806389B1 (fr)
JP (1) JPH1045309A (fr)
DE (2) DE19618870A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6575450B2 (en) 2001-01-30 2003-06-10 Lockheed Martin Corporation Singulation mechanism
DE10129007C1 (de) * 2001-06-15 2002-10-17 Roland Man Druckmasch Vorrichtung zum unterschuppten Zuführen von Bogen
DE10146919C1 (de) * 2001-09-24 2003-05-15 Koenig & Bauer Ag Vorrichtung zur Ausrichtung von in einer Lage übereinander angeordneten Bogen
DE10229322A1 (de) * 2002-06-29 2004-01-15 Kolbus Gmbh & Co. Kg Vorrichtung zum Vereinzeln eines Schuppenstroms von Druckprodukten in eine Folge beabstandeter Druckprodukte
DE102004015335A1 (de) 2004-03-30 2005-10-20 Koenig & Bauer Ag Vorrichtung zum Zuführen eines geschuppten Bogenstromes
JP2006082923A (ja) * 2004-09-15 2006-03-30 Canon Inc シート処理装置及びこれを備えた画像形成装置
JP5111155B2 (ja) * 2008-02-26 2012-12-26 デュプロ精工株式会社 排紙装置
WO2024059112A2 (fr) * 2022-09-14 2024-03-21 Intpro, Llc Détection de gauchissement dans un produit en carton ondulé en déplacement

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE713529C (de) * 1938-11-05 1941-11-13 Koenig Werk G M B H Maschf Bogenfoerdervorrichtung, insbesondere an Bogenanlegern fuer Buchdruck- und aehnlicheMaschinen
DE1176672B (de) * 1962-08-29 1964-08-27 Johannisberg Ges Mit Beschraen Rueckfrontbogenausleger an Druckmaschinen
DE1181240B (de) * 1963-10-15 1964-11-12 Mabeg Maschb G M B H Nachf Hen Anlegetisch fuer Bogenanleger
DE2502668A1 (de) * 1975-01-23 1976-07-29 Mueller Forst C Kg Verfahren und vorrichtung zum abheben und seitlichen abfoerdern von furnierblaettern oder dergl. von einer stapelflaeche
DE3331662A1 (de) * 1983-09-02 1985-03-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Verfahren und vorrichtung zum passgenauen bogentransport in eine druckmaschine
DE3903389A1 (de) * 1989-02-04 1990-08-09 Mabeg Maschinenbau Gmbh Nachf Vorrichtung zum foerdern eines bogenstroms
DE4013302A1 (de) * 1990-04-26 1991-10-31 Koenig & Bauer Ag Vorrichtung zum foerdern eines insbesondere geschuppten stroms von bogen
DE4108397C2 (de) * 1991-03-15 1995-09-21 Roland Man Druckmasch Vorrichtung zur Bildung einer Folge von sich unterlappenden Gegenständen
DE4203511A1 (de) * 1992-02-07 1993-08-12 Roland Man Druckmasch Vorrichtung zum foerdern eines geschuppten bogenstroms zu einer bogen verarbeitenden maschine
DE4314756C2 (de) * 1993-05-05 1995-02-23 Vits Maschinenbau Gmbh Vorrichtung zum Schuppen und Ablegen von Bogen auf einen Stapel
DE4416286C2 (de) * 1994-05-07 1999-10-28 Heidelberger Druckmasch Ag Vorrichtung zur Anpassung des Unterdruckes in einem Saugbandzuführtisch eines Bogenanlegers
DE4416289C2 (de) * 1994-05-07 2003-06-05 Heidelberger Druckmasch Ag Vorrichtung zum Fördern eines geschuppten Bogenstromes

Also Published As

Publication number Publication date
DE59707763D1 (de) 2002-08-29
EP0806389A3 (fr) 1998-12-09
JPH1045309A (ja) 1998-02-17
US5951007A (en) 1999-09-14
EP0806389A2 (fr) 1997-11-12
DE19618870A1 (de) 1997-11-13

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