EP1041029B1 - Méthode et dispositif pour extraire des inclusions d'air pendant la formation de piles de feuilles - Google Patents

Méthode et dispositif pour extraire des inclusions d'air pendant la formation de piles de feuilles Download PDF

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Publication number
EP1041029B1
EP1041029B1 EP00105265A EP00105265A EP1041029B1 EP 1041029 B1 EP1041029 B1 EP 1041029B1 EP 00105265 A EP00105265 A EP 00105265A EP 00105265 A EP00105265 A EP 00105265A EP 1041029 B1 EP1041029 B1 EP 1041029B1
Authority
EP
European Patent Office
Prior art keywords
air
sheets
stack
stacks
arrangement according
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
EP00105265A
Other languages
German (de)
English (en)
Other versions
EP1041029A3 (fr
EP1041029A2 (fr
Inventor
Bernd Ramcke
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.)
ECH Will GmbH and Co
Original Assignee
ECH Will GmbH and Co
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 ECH Will GmbH and Co filed Critical ECH Will GmbH and Co
Publication of EP1041029A2 publication Critical patent/EP1041029A2/fr
Publication of EP1041029A3 publication Critical patent/EP1041029A3/fr
Application granted granted Critical
Publication of EP1041029B1 publication Critical patent/EP1041029B1/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
    • B65H31/00—Pile receivers
    • B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
    • B65H31/08—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another
    • B65H31/10—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another and applied at the top of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4217—Forming multiple piles
    • B65H2301/42172—Forming multiple piles simultaneously
    • 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
    • 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
    • B65H2406/35—Other elements with suction surface, e.g. plate or wall
    • B65H2406/352—Other elements with suction surface, e.g. plate or wall facing the edge of the handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/21—Dynamic air effects
    • B65H2601/211—Entrapping air in or under the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the invention relates to a method for removing entrapped air when forming stacks of sheets, which are successively fed to a stack to be formed and deposited on it, wherein in the feed region of the arc air is sucked out of gaps of the sheet.
  • the invention also relates to an arrangement for the removal of trapped air in forming stacks of sheets with a feed device for feeding the sheets successively to the stack to be formed, on which they are deposited, wherein in the region of the supply means at least one suction device for removing air from gaps is provided between sheet.
  • Arches should be understood to mean sheets of paper, cardboard or plastic, such as foils. The size of the bow can vary within wide limits. So can be z. B.
  • these sheets are often accumulated in stacks (also called giant) and then fed to a further processing in which they z. B. are enveloped with wrapping material.
  • stacks also called giant
  • the transportation of uncoated stacks requires particular care because, as a result of the air trapped between the sheets forming the stacks, there is a tendency for individual sheets or entire sheet layers to move, causing a stack to lose its desired generally cuboidal configuration. This can lead to damage during further transport, which can make the entire stack useless.
  • To remove such air inclusions z. B. DE 195 23 699 A 1 or DE 34 03 209 A 1 method known according to which the air pockets are pressed out of the finished stack or struck.
  • the effect of the extraction of interfering air can be further improved in a further embodiment of the invention in that air is sucked above the feed area, because then disturbing of the sheet with supplied air is gently removed.
  • air can be sucked through openings of boundary walls into cavities of suction devices, so-called vacuum chambers.
  • a particularly advantageous embodiment of an extraction of air from the side surfaces of two juxtaposed stack can be achieved in that boundary walls of the cavity (vacuum chamber) arranged between two stacks suction approach each other and touch in places and are connected to each other. If it is ensured that air can flow through further openings with larger cross-sections in the areas of the contacting boundary walls, then adjusting undesirable differences in air pressure on both sides of the hollow body can be compensated.
  • the homogenization of the suction can also be used if the flow of air in the cavity is at least partially throttled or interrupted.
  • a suction device may comprise an air-aligned alignment surface for the sheets of a stacking surface.
  • Such an alignment surface may preferably be connected to an oscillating drive that vibrates the surface.
  • an alignment surface may be formed as a boundary wall of a cavity connected to a vacuum source.
  • boundary walls can then preferably be provided in the contact areas with further openings whose cross sections are larger than those of the air openings.
  • the cavity may be provided in some embodiments of the invention in places with throttle elements for the air.
  • the air conditions in the supply region of the sheet in the sense of reducing the air inclusions can be improved in that a suction device is arranged above the sheet supply area, so that even over the stack with the bow conveyed air can be sucked.
  • the advantage associated with the invention is that the formation of air pockets already largely suppressed during stacking, so that later pressing of the stack, which always requires a considerable effort, unnecessary.
  • the boundary surfaces of the suction devices, if they are vibrated, in addition as alignment surfaces for the stack serve.
  • Figures 1 and 2 show schematically a pallet 1, the two stacks 2 and 3 from Bow 4 is wearing.
  • the sheets can be sheets of normal copy paper size or a smaller or larger format.
  • the bows can also made of cardboard or plastic.
  • the sheet 4 with represented large spaces 13 that they do not have in reality. Much more The bows in the stacks are close together. They are supplied by supply facilities 6 in the form of conveyor belts 7 (only one can be seen in FIG. 1) in FIG Direction of the arrow 8 consecutively fed laterally and on the stacks. 2 and 3 filed.
  • the conveyor belts 7 are delivery belts of a not shown Machine for producing the sheet, z. B.
  • the pallet 1 is not shown by a usual Lowered lifting device, so that the stacking surfaces at least approximately maintain the same heights relative to the conveyor belts 7.
  • Below the conveyor belts 7 is an alignment plate 9, by an oscillating drive 11 in oscillating movements to align the sheets 4 in the stacks 2 and 3 in the Area 12 of the sheet feed is offset.
  • suction devices for removal d. H. Suction of harmful air inclusions arranged from the spaces 13 between the sheets 4. Hereinafter is spoken of the sucked air inclusions only as air ".
  • a first suction device 14 is located opposite the supply device 6 and has a vacuum box 17 associated with the surfaces 15 of the stacks 2 and 3 and provided with air openings 16, which is connected to a vacuum source 18 in the form of a fan 19.
  • the sucked from the spaces 13 air (air pockets) passes according to the arrows 21 through the air openings 16 in the vacuum box 17 and from there according to arrows 20 to the fan 19th 2, further suction devices 22, 23 and 24 which are assigned to those surfaces 25 or 26 or 27 or 28 of the stacks 2 and 3, which are parallel to the feed direction of the sheets 4, are located in the feed region 12 (as indicated by arrow 8).
  • suction devices also have vacuum box 29, 31 and 32, which are provided with not shown in Figure 2 air openings and connected via lines corresponding to the arrows 20 with the fan 19, so that the extracted air according to the arrows 21 in the vacuum box and from there according to the arrows 20 can flow to the fan 19.
  • the vacuum boxes 29, 31 and 32 are caused by oscillating actuators 33 and 34 and 36 respectively for performing vibrations, so that their suction surfaces 37 and 38 a, 38 b and 39 except for sucking the air inclusions and for aligning the stack side surfaces 25th or 26 or 27 or 28 can serve.
  • the formation of the suction devices 22 and 24 acting on the outer side surfaces 25 and 28 of the stacks 2 and 3, respectively, may be substantially the same.
  • the vacuum box 31 of the suction device 23 is shown in the in a first suction 40 through air openings 41, 42 in the suction surfaces 38 a, 38 b formed boundary walls 43 and 44, air from the interstices 13 of the stack second and 3 flows in accordance with the arrows 46.
  • a further suction 47 above the stack 2 and 3 are more air openings 41 a and 42 a, is sucked from the entrained by the arc air, which also reduces the risk of the formation of trapped air.
  • the boundary walls 43, 44 which simultaneously serve as alignment surfaces for the side surfaces 26, 27 of the stacks 2 and 3, are partially retracted and siege.
  • the boundary walls 43, 44 which serve simultaneously as alignment surfaces for the side surfaces 26, 27 of the stacks 2 and 3 respectively, are locally drawn in and approach each other until they touch each other in the areas 48, 49. In these areas, the boundary walls can be connected to each other. In the contact areas there are air openings 52 with cross-sections that are significantly larger than those of the air openings 41, 42. They allow pressure equalization, as a result of different conditions when shaking the boundary walls and suction of air undesirably different pressures on both sides of the suction device 23 form.
  • a barrier 53 also serves to improve the air flow in the suction device 23rd
  • the used with suction openings boundary walls the suction devices may advantageously in addition to the alignment the stacking surfaces can be used if it puts shaking motion become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Materials For Photolithography (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Pile Receivers (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Claims (16)

  1. Procédé pour éliminer des inclusions d'air lors de la formation de piles (2, 3) constituées de feuilles (4) qui sont successivement amenées à une pile à former et déposées sur celle-ci, de l'air étant aspiré d'espaces intermédiaires des feuilles dans la zone d'amenée des feuilles, caractérisé en ce que les feuilles sont amenées à deux piles disposées l'une à côte de l'autre, et en ce que de l'air est aspiré sur une face latérale respective (26, 27) de chaque pile, par un dispositif d'aspiration (23) placé entre les piles.
  2. Procédé selon la revendication 1, caractérisé en ce que des dispositifs d'aspiration effectuent, pour aspirer l'air, des mouvements oscillants de dressage pour des faces de la pile.
  3. Procédé selon la revendication 1 et/ou 2, caractérisé en ce que de l'air est aspiré au-dessus de la zone d'amenée.
  4. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que de l'air est aspiré à travers des ouvertures (41, 42) dans des cavités (31) de dispositifs d'aspiration (23).
  5. Procédé selon la revendication 4, caractérisé en ce que des parois de délimitation (43, 44) de la cavité d'un dispositif d'aspiration (23) placé entre deux piles (2, 3), se rapprochent mutuellement, entrent en contact par endroits et sont reliées l'une à l'autre en ces endroits, et en ce que dans les zones des parois de délimitation mutuellement en contact, de l'air s'écoule à travers d'autres ouvertures (52) de sections transversales plus grandes que celles des ouvertures (41, 42).
  6. Procédé selon la revendication 5, caractérisé en ce que l'écoulement de l'air dans la cavité est au moins partiellement diminué par étranglement ou interrompu.
  7. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que de l'air est aspiré depuis les faces de pile, qui sont opposées à celle où s'effectue l'amenée de feuilles (6), et depuis les deux faces latérales des piles.
  8. Agencement pour éliminer des inclusions d'air lors de la formation de piles (2, 3) constituées de feuilles (4), comprenant un dispositif d'amenée (6) pour amener successivement les feuilles à une pile à former, sur laquelle elles sont déposées, au moins un dispositif d'aspiration (14, 22...24) pour éliminer de l'air d'espaces intermédiaires (13) entre les feuilles (4), étant prévu dans la zone (12) du dispositif d'amenée 6), caractérisé en ce qu'entre deux piles auxquelles sont amenées des feuilles, est disposée une cavité (31) d'un dispositif d'aspiration (23) dont les parois de délimitation (43, 44) pourvues d'ouvertures d'air (41, 42) sont respectivement adjacentes à une face latérale (26, 27) d'une pile.
  9. Agencement selon la revendication 8, caractérisé en ce que les parois de délimitation (43, 44) sont mutuellement en contact par endroits et sont reliées l'une à l'autre en ces endroits.
  10. Agencement selon la revendication 9, caractérisé en ce que les parois de délimitation (43, 44) sont pourvues, de préférence dans les zones de contact mutuel (48...51), d'autres ouvertures (52) dont les sections transversales sont plus grandes que celles des ouvertures d'air (41, 42).
  11. Agencement selon l'une ou plusieurs des revendications 8 à 10, caractérisé en ce que la cavité (31) est munie, par endroits, d'éléments d'étranglement (53) pour l'air.
  12. Agencement selon l'une ou plusieurs des revendications 8 à 11, caractérisé en ce que des dispositifs d'aspiration (14, 22, 23, 24) sont associés à la face (15) de la pile, qui est opposée à celle où s'effectue l'amenée de feuilles (6), ainsi qu'à ses deux faces latérales.
  13. Agencement selon l'une ou plusieurs des revendications 8 à 12, caractérisé en ce qu'au moins un dispositif d'aspiration présente des surfaces de dressage (37...39) munies d'ouvertures d'air (41, 42), pour les feuilles (4) d'une face de pile.
  14. Agencement selon la revendication 13, caractérisé en ce que les surfaces de dressage sont reliées à un entraínement oscillant (33...36) engendrant des oscillations.
  15. Agencement selon la revendication 13 et/ou 14, caractérisé en ce qu'au moins une surface de dressage est réalisée en tant que paroi de délimitation d'une cavité (29...32) reliée à une source de dépression (19).
  16. Agencement selon l'une ou plusieurs des revendications 8 à 15, caractérisé en ce qu'au-dessus (47) de la zone (12) du dispositif d'amenée (6), est prévu au moins un autre dispositif d'aspiration (41a, 42a).
EP00105265A 1999-03-27 2000-03-14 Méthode et dispositif pour extraire des inclusions d'air pendant la formation de piles de feuilles Expired - Lifetime EP1041029B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914068 1999-03-27
DE19914068A DE19914068A1 (de) 1999-03-27 1999-03-27 Verfahren und Anordnung zum Entfernen von Lufteinschlüssen beim Bilden von Stapeln aus Bogen

Publications (3)

Publication Number Publication Date
EP1041029A2 EP1041029A2 (fr) 2000-10-04
EP1041029A3 EP1041029A3 (fr) 2001-10-31
EP1041029B1 true EP1041029B1 (fr) 2005-01-19

Family

ID=7902724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105265A Expired - Lifetime EP1041029B1 (fr) 1999-03-27 2000-03-14 Méthode et dispositif pour extraire des inclusions d'air pendant la formation de piles de feuilles

Country Status (10)

Country Link
US (1) US6364312B1 (fr)
EP (1) EP1041029B1 (fr)
JP (1) JP2000296963A (fr)
CN (1) CN1177744C (fr)
AT (1) ATE287372T1 (fr)
BR (1) BR0001428A (fr)
CA (1) CA2302002C (fr)
DE (2) DE19914068A1 (fr)
ES (1) ES2233234T3 (fr)
PT (1) PT1041029E (fr)

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DE50203751D1 (de) * 2002-05-02 2005-09-01 Siempelkamp Handling Sys Gmbh Vorrichtung zum Ablegen von dünnen Platten mit minimiertem Verrutschen zwischen den Platten
DE202006010955U1 (de) * 2006-07-14 2006-09-07 Man Roland Druckmaschinen Ag Absauganordnung für einen Ausleger einer Bogendruckmaschine
ES2385290T3 (es) * 2008-09-17 2012-07-20 Bielomatik Leuze Gmbh + Co. Kg Dispositivo de acumulación y transporte para pilas formadas por capas de hojas
DE102009040918A1 (de) * 2009-09-11 2011-03-17 Focke & Co.(Gmbh & Co. Kg) Vorrichtung und Verfahren zum Handhaben von Stapeln aus Druckträgern
CN102350805B (zh) * 2011-09-23 2012-10-31 张家港先锋自动化机械设备有限公司 薄膜压料装置
CN113734870A (zh) * 2020-05-27 2021-12-03 四川卡库机器人科技有限公司 片状物料挡料装置及堆叠装置
CN112454607B (zh) * 2020-12-04 2022-04-12 河南海格尔高温材料有限公司 一种用于预制块加工的负压式排气装置

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Also Published As

Publication number Publication date
CN1177744C (zh) 2004-12-01
ATE287372T1 (de) 2005-02-15
BR0001428A (pt) 2000-10-17
CN1269319A (zh) 2000-10-11
DE19914068A1 (de) 2000-09-28
DE50009252D1 (de) 2005-02-24
EP1041029A3 (fr) 2001-10-31
EP1041029A2 (fr) 2000-10-04
CA2302002C (fr) 2007-09-04
JP2000296963A (ja) 2000-10-24
CA2302002A1 (fr) 2000-09-27
US6364312B1 (en) 2002-04-02
ES2233234T3 (es) 2005-06-16
PT1041029E (pt) 2005-05-31

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