EP1588967B1 - Table de transport - Google Patents

Table de transport Download PDF

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Publication number
EP1588967B1
EP1588967B1 EP05007702A EP05007702A EP1588967B1 EP 1588967 B1 EP1588967 B1 EP 1588967B1 EP 05007702 A EP05007702 A EP 05007702A EP 05007702 A EP05007702 A EP 05007702A EP 1588967 B1 EP1588967 B1 EP 1588967B1
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EP
European Patent Office
Prior art keywords
air
sheet
conveying table
vent openings
guiding
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.)
Active
Application number
EP05007702A
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German (de)
English (en)
Other versions
EP1588967A2 (fr
EP1588967A3 (fr
Inventor
Harald Bayer
Georg Herzan
Frank Seidel
Bernd Ullrich
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.)
Manroland AG
Original Assignee
Manroland 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
Priority claimed from DE200420006615 external-priority patent/DE202004006615U1/de
Application filed by Manroland AG filed Critical Manroland AG
Publication of EP1588967A2 publication Critical patent/EP1588967A2/fr
Publication of EP1588967A3 publication Critical patent/EP1588967A3/fr
Application granted granted Critical
Publication of EP1588967B1 publication Critical patent/EP1588967B1/fr
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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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/228—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by air-blast devices
    • 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
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • 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
    • B65H2406/321—Suction belts integral in feed table

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • the sheets are first separated from the top of a sheet stack in a sheet feeder and offset from one another output as a sheet current. Furthermore, as a rule, after the separation of a sheet, its transport is required over a certain distance up to a contact area of the sheet-processing machine. Usually, the sheets of increased throughput are transported because of in a scale flow to the sheet processing machine. But it is also possible a single sheet feed.
  • belt tables are in use, which allow a stream of sheets that are underschuppt against each other, or even sheets safely. Particularly advantageous in this case are so-called suction belt tables.
  • Suction tapes are below the bow leading top of at least one box-shaped cavity, are guided over the conveyor belts in the form of suction belts.
  • Suction belts are usually in the form of apertured flat belts.
  • the suction belts are driven by at least one shaft arranged at one end of the suction belt, a first so-called belt roller, deflected by a second shaft or belt roller at the other end of the suction belt table and held in a straight position by a tensioning device ,
  • a suction air supply is arranged for holding the sheet to the suction belts on the underside of the suction belt, by means of which the cavity is acted upon in the suction belt table.
  • This suction air supply can be designed as a simple fan or as a blower connection.
  • a so-called investment table is provided on the front or top marks for aligning the sheet leading edge are arranged in the transport direction and a so-called side mark for lateral alignment of the sheet.
  • additional conveyor belts also called support belts, are designed as simple flat belts and are not subjected to suction.
  • the additional conveyor belts or support belts usually run around with the surface above the table surface around the belt table and thus facilitate the transport of the sheet in the outside of the suction belts resting on the belt table area.
  • the suction belt tables known in this way have various disadvantages. Since the laterally arranged additional conveyor belts, depending on the sheet size in the region of the edge of the sheet to be conveyed, it may already come during normal sheet transport disruption. Therefore, a complicated lateral adjustment of the conveyor belts may be required to remove them from the area of the sheet edges. This is especially important if the sheet edge used for the page orientation of the sheet comes to rest in the area of the conveyor belts. There is a great danger that the sheet edge will hang in the direction of the page orientation on one of the conveyor belts and the sheet warps during the shift. Proper alignment before feeding the sheet to the sheet processing machine is then no longer possible. In addition, the auxiliary belts tend to scratch sensitive sheets on their underside.
  • a method and an apparatus for the shallow feeding of sheet-shaped substrates to a printing press known.
  • a conveyor table which has exhaust openings in the area between and adjacent to the suction belts. This is intended to produce an air flow counter to the conveying direction of the conveyor table in order to reduce adhesion or electrostatic charging of the underfolded sheet guided on the conveyor table on the surface of the conveyor table.
  • a disadvantage of the device is that the exhaust openings are only selectively or linearly arranged in the front, the printing press facing area of the conveyor table. It has proved to be very disadvantageous that the outflowing air is directed against the conveying direction of the conveyor table, since in this way the air is supplied to the leading edge of each sheet. This air flow acts particularly strong at the exit point. Therefore, in this case, the sheets tend to flutter because the blast air enters between the leading edges of the sheets.
  • the aim of the invention is therefore to improve the belt table so that the sheet transport can be designed easily in a simple manner, with large formats no delivery resistances occur and the sheets are not damaged by the delivery process.
  • the object of the invention is to further develop a generic belt table such that the sheet transport in any operating position, especially in the application of very large sheet sizes safely designed and easily readjusted, while the risk of scratching the sheet should be eliminated.
  • the conveyor table is equipped, at least in its lateral guide areas, with a pneumatic device for the planar production of a thin air cushion.
  • a pneumatic device for the planar production of a thin air cushion.
  • blast air supplies and areal distributed blowing openings are provided in the guide areas.
  • the sheet guide does not require the use of lateral support bands and designed in a very simple manner and can be readjusted.
  • the sheets are guided in a very advantageous manner over the side table area, without the risk of scratching on sensitive sheet surfaces. This applies in particular to film materials, for example.
  • the device of a planar blast air supply can also be provided in the region between the conveyor belts, so that the advantageous effect of the scratch-free guidance is also shown here.
  • blow-suction nozzles can be used in the blowing openings. These are to be supplied with blown air under higher pressure but at a lower flow rate.
  • Excess air from the air cushion can be removed at the front end of the conveyor table facing the sheet-processing machine via special openings in the table surface from all guide areas. At the same time this can be done via aeration devices parallel to any suction belts used within the surface of the conveyor table. Venting can also be done actively by suction.
  • FIG. 1 is a conveyor table or Saugb fortisch 1 shown.
  • the conveyor table or suction belt table 1 has a box-shaped cavity 7, not visible here (see FIG. 2 ) on. About this cavity 7, one or more conveyor belts are guided in the form of apertured suction belts 2.
  • the suction belts 2 are arranged on the two in the transport direction and here not shown belt rollers 4.1, 4.2 supported and driven. Furthermore, 2 arrangements of tension rollers 4.3 may be provided in the path of the suction belts.
  • the cavity 7 in the conveyor table or suction belt table 1 is directly with a fan 3 (see Fig. 2 ) or by means of a vacuum hose with a blower and is vented from this.
  • Ventilation belts 2 Air is drawn through the suction belts 2 and their openings and each resting on the conveyor table or suction belt table 1 sheet B is held there firmly and moved in the stroke of the suction belts 2 forward.
  • Parallel to the suction belts 2 1 ventilation means may be provided in the conveyor table or suction belt table. These essentially serve to prevent suction air effects emanating from the suction belts 2 into the guide areas of the conveyor table or suction belt table 1 in addition to the suction belts 2.
  • a guide region 5 is provided in each case in the outer region of the conveyor table or suction belt table 1.
  • the guide areas 5 are made of low-friction material with possibly structured surface.
  • the guide areas 5 serve to better guide the area of the sheet B overhanging outside the suction belts 2 on the conveyor table or suction belt table 1 - which grinds on the conveyor table or suction belt table 1. This is especially important for very large sheet sizes. Furthermore, there is also a guide area between the suction belts 2, on which the sheets B are ground.
  • the sheet B in front of the conveyor table or suction belt table 1 usually a sheet feeder (not shown here) is arranged, in which the sheet B are separated from the top of a sheet pile.
  • the sheets B are then fed to the conveyor table or suction belt table 1 via a guide plate 11.
  • a sheet-processing machine eg a printing press
  • a delivery table 12 can be connected to the delivery table or suction belt table 1 with a delivery table 12 as shown here.
  • a side mark 13 is indicated.
  • the page mark 13 guides the sheet B with its side edge against a stop to set the lateral position before the supply of the sheet B to the sheet processing machine.
  • Another side mark 13 may also be arranged on the opposite side of the investment table 12.
  • FIG. 1 Furthermore, a sheet B to be processed is shown in its position before the page orientation on the side mark 13. Visible is an edge used to B.1 about in the middle of the Leit Schemees 5. In the sheet transport on the conveyor table or Saugb fortisch 1 but also in a Soausrichtschi in the direction of the arrow in the direction of the page mark 13 of the arc B is thus a relative be large contact surface on the conveyor table or suction belt table 1 to move.
  • ventilation openings 6 are provided in the conveyor table or suction belt table 1 in the guide areas 5 substantially over the entire area of the guide areas 5.
  • These ventilation openings 6 can be designed as circular openings or as nozzle-shaped openings.
  • they can be adjustable in their effective direction in the plane of the surface of the conveyor table or suction belt table 1 or relative to its surface.
  • the blowing direction is essentially aligned in the transport direction T, but can also be oriented transversely thereto.
  • the nozzles can also be designed as so-called blow-suction nozzles.
  • it can be provided that even in a central guide region 5.1 between the suction belts 2 distributed ventilation openings 6 or nozzles are arranged.
  • FIG. 2 now the structure of the conveyor table or Saugb selectedticians 1 is shown in longitudinal section.
  • the ventilation openings 6 are only in the cutout view of FIG. 3 shown.
  • the supply of the ventilation openings 6 with blown air takes place according to FIG. 3 preferably in groups, but it can also be provided individually.
  • individual or combined blast air feeds 8 and / or air chambers 9 are arranged on the underside of the conveyor table or suction belt table 1, but in the region of the guide areas 5.
  • the air chambers 9 are then assigned again single or combined Blas Kunststoffzu entryen 8.
  • the air chambers 9 can On the other hand, be designed as part of the table surface of the conveyor table or suction belt table 1.
  • the air chambers 9 are arranged laterally of the cavity 7 for supplying the suction belts 2 with air.
  • the cavity 7 could extend over the entire table surface and the air chambers 9 can be separated from the cavity 7.
  • the air chambers 9 is associated with a common system of air ducts 8. Dashed line, the position of the fan 3 for supplying the suction belts 2 with suction air through the cavity 7 is shown.
  • the ventilation openings 6 are arranged within each of the guide portions 5 in parallel to the suction belts 2 arranged rows.
  • the blast air supply 8 may be summarized in any form for each row.
  • the Blas mobilisation 8 can be switched on or switched off to the rows of ventilation openings 6.
  • a control of the Blas Kunststoffzu entry 8 is provided for example via electrically switchable valves 15 (see FIG. 4 ). This control can be performed influenced by the machine control when entering the sheet format.
  • the arrangement and grouping of the air supply devices can be carried out in the middle guide region 5.1 between the suction belts 2 in the same way as described above.
  • FIG. 3 is a section of the conveyor table or Saugb selectedtisch 1 after Fig. 2 shown. Shown is the table surface in the region of the guide area 5. In this guide area 5, the ventilation openings 6 are provided. An air chamber 9 is connected to the conveyor table or suction belt table 1 in the area of the ventilation openings 6. This is parallel to the cavity 7 at the bottom of the conveyor table or Saugb selectedticians 1. At the air chamber 9 is a Blasluftzu entry 8 connected. The Blas Kunststoffzu operation 8 includes a switchable valve 15 for connecting or disconnecting the Blas povertyzuschreib.
  • the exiting blown air forms only a relatively thin layer, virtually a film, on carrying air. It is also important that no blowing air enters between the sheets B. Therefore, the blast air is to blow at low pressure with relatively high volume
  • the direction of the blast air emerging from the ventilation openings 6 can be used to convey the sheet B in the transport direction T. Furthermore, when the blowing direction of the ventilation openings 6 is oriented in the direction of the opposite lateral edges of the conveyor table or suction belt table 1 or at an angle between 0 and 90 degrees to the direction of the outer edges of the conveyor table or suction belt table 1, a tightening effect on the sheets B can be achieved ,
  • the nozzles can be designed for this purpose in their direction of action individually or in groups adjustable.
  • the nozzles can also be made adjustable in their discharge angle to the plane of the conveyor table or suction belt table 1. For example, for heavier materials or materials with a relatively rough surface, a steeper jet angle for the nozzles may be selected.
  • FIG. 4 the conveyor table or suction belt table 1 is shown from below.
  • the cavity ventilating fan 3 is arranged centrally.
  • the band rollers 4.1 and 4.2 for guiding the suction belts 2 are shown.
  • groups of air chambers 9, 10 are arranged laterally of the fan 3.
  • air chambers 9 are arranged in two rows parallel to the transport direction T. These air chambers 9 each hold small partial surfaces of the guide regions 5 for air supply together. The size of these air chambers 9 can be varied, for example, in the transport direction T.
  • the air chambers 9 are provided with each other with a Blas Kunststoffzu arrangement 8.
  • the one blast air supply 8 additionally has remote-controllable valves 15 (flaps), to be able to limit or switch on or off the air supply quantitatively or locally.
  • air chambers 10 are arranged in a row parallel to the transport direction T. These air chambers 10 each hold larger partial surfaces of the guide regions 5 than the air chambers 9 for air supply together. The size of the air chambers 10 has been varied in the transport direction T.
  • the air chambers 10 are also provided with each other with a Blas Kunststoffzu entry 8.
  • the one Blas Kunststoffzu entry 8 additionally has remotely controllable valves 15 (flaps) to limit the air supply quantity or local or to be able to switch off or on. By means of the valves 15 so the air supply is controlled by an air chamber 9, 10 to the next possible. In addition, it may be possible, for example, to supply the foremost air chamber 9, 10 with increased air pressure. Depending on the arrangement of the valves 15 and their controllability various operating modes are possible.
  • one or more arrangements of relief bores 14 can be provided in the region of the outlet-side end of the conveyor table or suction belt table 1 near the transition to the feed table 12 following the guide areas 5 and 5.1.
  • These relief bores 14 are preferably below the conveyor table or Saugb basicticians 1 connected to the environment and without pressure. By means of the relief bores 14, excess carrying air can escape from the region below the foremost sheet B to be aligned. This ensures that the sheet B safely reaches all the required alignment elements in the feed table 12.
  • the guide areas 5 and 5.1 are vented in a simple manner along the suction belts 2, if the suction belts 2 ventilation devices are assigned to eliminate creeping suction, as described above.
  • the arrangement of the relief bores 14 may also be provided with an air discharge device in order to actively remove the remaining air cushion from the area under the arch B.
  • the active air removal can be controlled and switched off and on in the bow cycle.
  • control of the air supply to the conveyor table or suction belt table 1 can be designed so that the blast air is switched off in the guide areas 5 and 5.1 during transport of the last to be processed sheet B sequentially from the inlet end to the downstream end. This avoids that the no longer fully lying under sheet B are lifted off the conveyor table or suction belt table 1 and are conveyed inaccurate.
  • valves 15 are opened or closed in the process of casserole of the first sheets B or when draining the last sheets B from the conveyor table or suction belt table 1 respectively corresponding to the area just covered. This ensures that in the surface parts of the guide area 5, which is covered by arch B, still carrying air is blown. On the other hand, the supply of blown air is interrupted in the free or just released area, so that individual sheets B are not excited to flutter.
  • the blowing air can be applied to the Exposed ends of the sheets B, ie at the beginning of the bow of the first sheet B or at the end of the sheet of the last sheet B are reinforced, so as to increase the tension effect of the bow B for a short time.
  • the last nozzles can also be designed as so-called blow-suction nozzles.
  • blow-suction nozzles as a result of the special contour, an intake effect is additionally achieved by the outflowing air next to the air cushion, which effect is limited to the area of the blow-suction nozzle.
  • nozzles in further surface parts or else all nozzles in the guide regions 5 and 5.1 can also be designed as blow-suction nozzles.
  • Blow-suction nozzles are operated with higher air pressure at lower volume flow. Therefore, the air supply for the blow-suction nozzles can be made separately from other ventilation holes 6. This can be done as described in a simple manner by a group arrangement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Escalators And Moving Walkways (AREA)

Claims (24)

  1. Dispositif placé au niveau d'une table transporteuse (1), de préférence au niveau d'une table à bandes d'aspiration, pour le transport de matériau en feuilles dans un flux de feuilles en disposition imbriquée depuis un margeur jusqu'à une machine de traitement de feuilles, notamment une machine d'impression rotative de feuilles, comportant une ou plusieurs bandes transporteuses, par exemple des bandes d'aspiration (2) pouvant être sollicitées avec de l'air d'aspiration et qui sont guidées autour de la table transporteuse (1) avec possibilité d'entraînement et en continu, un dispositif de soufflage qui souffle de l'air sous le flux de feuilles en dehors de la zone de guidage des bandes transporteuses au niveau de zones conductrices (5) disposées latéralement et parallèlement aux bandes transporteuses de la table transporteuse (1),
    caractérisé en ce que,
    au moins dans les zones conductrices (5), sur la face extérieure des bandes transporteuses (2), il est prévu une pluralité d'orifices d'aération (6) distincts répartis sensiblement sur toute la surface des zones conductrices (5) et qu'une conduite d'alimentation en air de soufflage (8) est prévue de manière à être au moins partiellement couplée pour les orifices d'aération (6) de manière à ce que les zones conductrices (5) puissent être sollicitées à l'air de soufflage sensiblement sur des sous-surfaces ou sur toute leur surface.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que,
    dans les zones conductrices (5) et/ou dans une zone conductrice centrale (5.1) qui est disposée entre les bandes transporteuses (2), des orifices d'aération (6) sont prévus.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que les orifices d'aération (6) se présentent sous forme de buses.
  4. Dispositif selon la revendication 1,
    caractérisé en ce que les orifices d'aération (6) se présentent sous forme de buses de soufflage/succion.
  5. Dispositif selon les revendications 1 à 4,
    caractérisé en ce que les orifices d'aération (6) se présentent partiellement sous forme de buses de soufflage/succion.
  6. Dispositif selon les revendications 3 à 5,
    caractérisé en ce que les orifices d'aération (6) se présentent, au niveau de l'extrémité située côté sortie de la table transporteuse (1), sous forme de buses dirigées respectivement du centre de la table transporteuse (1) vers les bords latéraux.
  7. Dispositif selon les revendications 3 à 5,
    caractérisé en ce que les orifices d'aération (6) se présentent, au niveau de l'extrémité située côté arrivée et dans la surface située avant l'extrémité côté sortie, de la table transporteuse (1), sous forme de buses dirigées dans le sens de transport (T) de la table transporteuse (1).
  8. Dispositif selon les revendications 1 à 7,
    caractérisé en ce que les orifices d'aération (6) se présentent sous forme de buses réglables individuellement ou par groupe dans leur sens de soufflage dans le plan de la table transporteuse (1) et/ou par rapport au plan de la table transporteuse (1).
  9. Dispositif selon les revendications 1 à 8,
    caractérisé en ce que les orifices d'aération (6) de chaque zone conductrice (5) peuvent être alimentés en commun en air de soufflage.
  10. Dispositif selon les revendications 1 à 8,
    caractérisé en ce que les orifices d'aération (6) de chaque zone conductrice (5) peuvent être alimentés en commun par groupes en air de soufflage.
  11. Dispositif selon les revendications 1 à 10,
    caractérisé en ce que
    les orifices d'aération (6) sont disposés en rangées parallèlement aux bandes transporteuses et que chaque rangée peut être alimentée en commun en air de soufflage.
  12. Dispositif selon les revendications 1 à 11,
    caractérisé en ce que,
    à chaque orifice d'aération distinct(6) ou aux orifices d'aération rassemblés en groupes (6) est associée du côté alimentation une chambre à air (9, 10), chaque orifice d'aération (6) communiquant avec une chambre à air (9, 10), et que chaque chambre à air (9, 10) peut être alimentée séparément ou que des groupes de chambres à air (9, 10) peuvent être alimentés en commun en air de soufflage.
  13. Dispositif selon la revendication 12,
    caractérisé en ce que
    les chambres à air (9, 10) font partie de la surface de table transporteuse de la table transporteuse (1).
  14. Dispositif selon les revendications 1 à 13,
    caractérisé en ce que,
    au niveau de l'extrémité située côté sortie dans le sens de transport (T), la zone conductrice (5) ou (5.1) de la surface de table transporteuse de la table transporteuse (1), il est prévu un ou plusieurs orifices de délestage (14) à travers lesquels l'air excédentaire peut s'écouler hors de la zone des feuilles à transporter (B) en dessous de la surface de table transporteuse.
  15. Dispositif selon la revendication 14,
    caractérisé en ce que
    les orifices de délestage (14) sont pourvus d'un dispositif d'évacuation d'air.
  16. Dispositif selon les revendications 14 et 15,
    caractérisé en ce que
    le dispositif d'évacuation d'air des orifices de délestage (14) aspire de l'air et peut fonctionner suivant une cadence de transport.
  17. Dispositif selon une des revendications précédentes,
    caractérisé en ce que
    il est prévu un dispositif de commande grâce auquel, après détection du format d'une feuille à traiter (B) au niveau de la position des bords de la feuille (B) dans son positionnement dans les zones conductrices (5), un dispositif de positionnement permettant d'influer sur l'alimentation en air peut être commandé de manière à ce que, en cas de constatation d'une approche du bord (B.1) de la feuille (B) jusqu'à une limite d'une zone conductrice associée (5), l'alimentation en air des orifices d'aération (6) ou des groupes d'orifices d'aération (6) peut être activée ou désactivée.
  18. Dispositif selon une des revendications précédentes,
    caractérisé en ce que
    il est prévu un dispositif de commande grâce auquel un dispositif de positionnement permettant d'influer sur l'alimentation en air peut être commandé de manière à ce que, en cas de transport de la première ou dernière feuille à traiter (B) par la table transporteuse (1), l'alimentation en air des orifices d'aération (6) ou des groupes d'orifices d'aération (6) pour les zones conductrices (5) associées en conséquence peut être désactivée séquentiellement sensiblement en fonction de la surface se libérant de la table transporteuse ou reste activée dans la zone couverte de la table transporteuse (1).
  19. Dispositif selon la revendication 18,
    caractérisé en ce que,
    dans les conduites d'alimentation en air (8), associés à des groupes d'orifices d'aération (6) ou à des chambres à air distinctes (9, 10) ou à des groupes de chambres à air (9, 10), des soupapes (15) sont prévues et que les soupapes (15) peuvent être activées par une commande en fonction de l'état de fonctionnement de la table transporteuse (1) pour activer ou désactiver l'alimentation en air des zones conductrices (5) ou de parties des zones conductrices (5).
  20. Dispositif selon une des revendications précédentes,
    caractérisé en ce que
    l'alimentation en air de soufflage peut être modifiée en fonction du type de matériau d'impression suivant le grammage et/ou les propriétés surfaciques et/ou la perméabilité à l'air et/ou la sensibilité au grattage au moins pour ce qui est de la pression d'alimentation et/ou de la quantité d'air apportée.
  21. Dispositif selon une des revendications précédentes,
    caractérisé en ce que
    l'alimentation en air de soufflage peut être modifiée différemment localement au niveau de l'emplacement de la surface de transport dans une zone conductrice (5) au moins pour ce qui est de la pression d'alimentation et/ou de la quantité d'air apportée.
  22. Procédé de transport de feuilles au niveau d'une table transporteuse (1), de préférence au niveau d'une table à bandes d'aspiration, dans un flux de feuilles en disposition imbriquée depuis un margeur jusqu'à une machine de traitement de feuilles, au moins d'une ou plusieurs bandes d'aspiration (2) pouvant être sollicitées avec de l'air d'aspiration et qui sont guidées autour de la table transporteuse (1) avec possibilité d'entraînement et en continu, de l'air étant soufflé sous le flux de feuilles au moyen d'un système pneumatique en dehors de la zone de guidage des bandes transporteuses au niveau de zones conductrices (5, 6) disposées latéralement et parallèlement aux bandes transporteuses de la table transporteuse (1),
    caractérisé en ce que,
    au moins dans les zones conductrices (5), sur la' face extérieure des bandes transporteuses (2), au moyen d'une pluralité d'orifices d'aération (6) distincts répartis sensiblement sur toute la surface des zones conductrices (5), un coussin d'air régulier est généré sous le flux de feuilles, tandis que, au moyen d'orifices d'aération (6) couplés au moins partiellement par des conduites d'alimentation en air de soufflage (8), les zones conductrices (5) peuvent être sollicitées différemment à l'air soufflé sensiblement sur des sous-surfaces.
  23. Procédé selon la revendication 22,
    caractérisé en ce que,
    dans les zones conductrices (5) situées sur la face extérieure des bandes transporteuses et/ou dans des zones conductrices centrales (5.1) entre les bandes transporteuses, au moyen d'une pluralité d'orifices d'aération distincts (6), sensiblement sur toute la surface des zones conductrices (5), un coussin d'air régulier est généré sous le flux de feuilles, tandis que, au moyen d'orifices d'aération (6) couplés au moins partiellement par des conduites d'alimentation en air de soufflage (8), les zones conductrices (5) ou (5.1) peuvent être sollicitées différemment à l'air soufflé sensiblement sur des sous-surfaces.
  24. Procédé selon la revendication 23,
    caractérisé en ce que,
    dans des sous-zones situées dans les zones conductrices (5) ou (5.1), au moyen des conduites d'alimentation en air de soufflage (8), au début du transport des feuilles, avec la première feuille (B) chargée sur la table transporteuse (1) dans le sens de transport (T), l'alimentation en air est activée séquentiellement avec le recouvrement par la première feuille (B) successivement jusqu'à alimentation de l'ensemble des zones conductrices (5) et/ou que, dans les sous-zones situées dans les zones conductrices (5), au moyen des conduites d'alimentation en air de soufflage (8), à la fin du transport des feuilles, avec la dernière feuille (B) sortant de la table transporteuse (1) dans le sens de transport (T), l'alimentation en air est désactivée séquentiellement avec le dégagement par la dernière feuille (B) successivement jusqu'à désactivation de l'ensemble des zones conductrices (5) ou (5.1).
EP05007702A 2004-04-23 2005-04-08 Table de transport Active EP1588967B1 (fr)

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DE202004006615U 2004-04-23
DE200420006615 DE202004006615U1 (de) 2004-04-23 2004-04-23 Fördertisch
DE102004022694 2004-05-05
DE102004022694 2004-05-05

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EP1588967A2 EP1588967A2 (fr) 2005-10-26
EP1588967A3 EP1588967A3 (fr) 2008-09-10
EP1588967B1 true EP1588967B1 (fr) 2010-02-24

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Publication number Priority date Publication date Assignee Title
EP1739039A3 (fr) * 2005-06-28 2009-04-15 Heidelberger Druckmaschinen Aktiengesellschaft Méthode et dispositif pour le transport de feuilles vers une machine d'impression
ITMI20130731A1 (it) * 2013-05-06 2014-11-07 Meccanotecnica Spa Alimentatore di fogli piani con cuscino d'aria
EP3287282B1 (fr) * 2015-04-30 2018-09-26 Koenig & Bauer AG Procédé de traitement séquentiel de substrats en forme de feuilles comprenant appliquer un revêtement d'appret, sécher, imprimer et traiter
EP3288765B1 (fr) * 2015-04-30 2020-02-19 Koenig & Bauer AG Dispositif de transport pour transporter en séquence substrats en forme de feuille utilisant une bande d'aspiration
EP3190072A1 (fr) * 2016-01-11 2017-07-12 Hunkeler AG Unite de separateur pour blocs de livres
CN107444938A (zh) * 2017-09-01 2017-12-08 南京工业职业技术学院 一种相控气动送料工作台
DE102019118647B3 (de) 2019-07-10 2020-06-10 Koenig & Bauer Ag Produktionslinie zur Bearbeitung von Blechtafeln
DE102020114531A1 (de) 2020-05-29 2021-12-02 Koenig & Bauer Ag Produktionslinie zur Bearbeitung von Blechtafeln
DE102020125412A1 (de) 2020-09-29 2022-03-31 Koenig & Bauer Ag Vorrichtung zum Transport von jeweils bis an ihre auf ihre Transportrichtung bezogene Vorderkante und/oder Hinterkante lackierten Blechtafeln

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DE2054924B2 (de) * 1969-11-21 1973-11-15 O.R.M.A.G. S.R.L., Novegro Di Segrate, Mailand (Italien) Pneumatisch wirkende Vorrichtung an Bogenanlegern fur Druckmaschinen zur Aufhebung der durch elektrostatische Aufladung hervorgerufenen Anziehung
DE4012948A1 (de) * 1990-04-24 1991-10-31 Roland Man Druckmasch Vorrichtung zum foerdern von druckbogen
DE9004967U1 (de) * 1990-04-26 1990-06-28 Koenig & Bauer AG, 8700 Würzburg Vorrichtung zum Fördern eines insbesondere geschuppten Stroms von Bogen
JPH04211943A (ja) * 1990-07-13 1992-08-03 Sumitomo Heavy Ind Ltd 枚葉印刷機用排紙装置
JPH06239497A (ja) * 1993-02-15 1994-08-30 Matsushita Electric Works Ltd シート材の位置決め装置
DE4413089C2 (de) * 1994-04-15 1997-02-13 Roland Man Druckmasch Verfahren und Vorrichtung zum unterschuppten Zuführen von bogenförmigen Bedruckstoffen an eine Druckmaschine
DE202004006615U1 (de) * 2004-04-23 2004-08-05 Man Roland Druckmaschinen Ag Fördertisch

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DE502005009062D1 (de) 2010-04-08
ATE458684T1 (de) 2010-03-15
EP1588967A2 (fr) 2005-10-26
EP1588967A3 (fr) 2008-09-10
JP2005306611A (ja) 2005-11-04
JP4772370B2 (ja) 2011-09-14

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