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EP0364737B1 - Dispositif de soufflage pour mangeurs de rotatives d'impression - Google Patents

Dispositif de soufflage pour mangeurs de rotatives d'impression Download PDF

Info

Publication number
EP0364737B1
EP0364737B1 EP89117084A EP89117084A EP0364737B1 EP 0364737 B1 EP0364737 B1 EP 0364737B1 EP 89117084 A EP89117084 A EP 89117084A EP 89117084 A EP89117084 A EP 89117084A EP 0364737 B1 EP0364737 B1 EP 0364737B1
Authority
EP
European Patent Office
Prior art keywords
fans
sheets
loosening
pile
adjustable
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
EP89117084A
Other languages
German (de)
English (en)
Other versions
EP0364737A2 (fr
EP0364737A3 (fr
Inventor
Arno Wirz
Dieter Bergmeier
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 EP0364737A2 publication Critical patent/EP0364737A2/fr
Publication of EP0364737A3 publication Critical patent/EP0364737A3/fr
Application granted granted Critical
Publication of EP0364737B1 publication Critical patent/EP0364737B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/48—Air blast acting on edges of, or under, articles
    • 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
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/121—Fan
    • 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
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles

Definitions

  • the invention relates to the formation of the loosening blower for sheet feeders of sheet-fed rotary printing presses, which are adjustable in height on the frame of the sheet feeder behind and to the side of the sheet stack and are adjustable in terms of the blowing power.
  • Loosening blowers are known from height-adjustable nozzles on the suction head of a sheet feeder in addition to blowers for carrying air during transport of the upper sheet lifted from the stack at the height of the upper sheets of a sheet stack and supplied with blown air from a rotary compressor of the standard air system for supplying the suction head with suction air and blown air. Accordingly, air is supplied to the nozzles of the loosening blowers at the pressure required for the operation of the suction head and a correspondingly high flow rate.
  • the object of the invention is to improve the loosening of the sheet stack and the paper run in the feeder, especially in the case of thinner paper from the pallet, foils and the like, by means of loosening blowers which can be individually regulated and individually directed onto the sheet stack independently of the air supply system of the machine.
  • the invention solves this problem by means of training features according to claim 1.
  • Fans are independent of the machine's standard air system because each fan has its own paddle wheel with an independent drive by an electric motor. Fans can therefore be regulated independently of each other in the blown air and can be directed individually with their blown air flow at different angles against the side surfaces of the sheet stack. The number of fans provided is independent of the standard air supply and can therefore be increased as required.
  • the arrangement of the fans is advantageous not only on the rear edge of the sheet stack in the sheet feeder, but also on the two sides of the sheet stack.
  • the upper ones can be adjusted approximately at the level of the air blowers at the rear edge of the sheet stack and blow additional air from the sides under the upper sheet lifted off the stack when it is being transported in the feeder. This leads to Especially with thin paper, foils and comparable substrates for increased security in the paper flow.
  • the number of fans to be arranged on the rear edge and the two sides of the sheet stack perpendicular to it, their blowing direction and their blowing power are adapted to the respective printing material.
  • the fans can not only be arranged next to one another, but also one above the other in height and blow air against the sheet stack in order to improve the pre-loosening effect, in particular in the case of pallet stacks. By pre-loosening the stack in deeper areas, the processing of statically charged papers can also be facilitated.
  • the pre-loosening can also be controlled cyclically by a valve.
  • a pivoting possibly also in the work cycle of the machine, can be provided by a motor, for example with a controlled electrical or pneumatic drive.
  • each fan can have a tubular attachment nozzle made of an elastic material, one end of which is firmly connected to the fan housing and the other end of which forms a nozzle cross section which is adjustable in size and in its position relative to the fan axis.
  • This attachment nozzle can be formed from an elastically deformable hose and protrude with the free end into a clamping device which can be rotated about the fan axis and is adjustable to regulate the nozzle cross section. This creates a slot for the air outlet of the fan, the slot being rotatable about the blowing direction.
  • the clamping device enables the slot to be enlarged or reduced to regulate the emerging air speed in addition to the regulation by Change in fan speed.
  • the air flow can be directed at any angle against the side surface of the sheet stack.
  • the air flow can be directed obliquely upwards from the bottom or from the back to the front in the running direction of the arch.
  • several fans can be arranged on a common carrier, which is adjustably attached to guides of the sheet feeder frame.
  • the adjustment of the fan power can be programmed in accordance with the needs of certain user groups, for example label printers, plastic printers, etc., and carried out by a common adjusting element, combinations of such programs with program adjustments of the entire printing machine being possible.
  • FIGS. 1 and 2 show in FIGS. 1 and 2 the arrangement of a plurality of fans 1 as loosening blowers on the rear edge of a sheet stack 2 and on the two sides running perpendicular thereto.
  • a plurality of fans 1 are arranged next to one another and optionally also one above the other both on the rear edge of the sheet stack 2 and on its sides. Above all on the rear edge of the sheet stack, the arrangement of several fans one above the other can lead to a considerable improvement in the pre-loosening of the sheet stack 2 on the stacking table of the feeder.
  • guides 4 are provided on the frame 3 of the feeder, on which the fans 1 are fastened with supports 5 in an individually adjustable manner. The arrows shown in FIGS.
  • FIGS. 1 and 2 illustrate the individual adjustability of the fans 1 in height, width and around the horizontal axis of the fans 1.
  • the fans arranged laterally next to the sheet stack 2 are also about a vertical and a horizontal axis adjustable to direct the air flow of the fans to support the air in the direction of the sheet transport of the upper sheet.
  • the suction head 6 with the suction cups 7 and the suction cups 8 is shown schematically in FIGS. 1 and 2.
  • Each fan consists of a paddle wheel 9 with an independent electromotive drive 10 in a housing 11, which is advantageously closed on the suction side by a dust filter 12.
  • a housing 11 tubular attachment nozzle 13 around the fan axis 14 tight, but rotatable, connected.
  • the attachment nozzle 13 consists of a hose made of an elastic material, one end of which is connected with a seal to the connecting part 15 on the housing 11 and the other end of which engages in a clamping device 16 composed of two clamping strips 17 and 18, which are attached to the thread by a clamping screw 19 screwable wing nut 20 engages.
  • the cross-section of the hose of the attachment nozzle 13 which is round in the open state, can be reduced to a flatly squeezed opening cross-section according to FIG. 5 and possibly closed.
  • the rotatable mounting of the connecting part 15 with the attachment nozzle 13 allows the setting of a flat air flow at a certain angle of rotation to the axis 14 of the fan against the sheet stack.
  • FIGS 3 to 5 show only schematically an embodiment for controlling the air flow from the fan.
  • Other control elements for the air flow from a fan are known and can also be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Claims (8)

  1. Souffleurs de déliassage pour margeurs de rotatives à imprimer des feuilles, qui sont montés, de manière réglable en hauteur, sur le bâti du margeur, derrière et à côté de la pile de feuilles et dont la puissance de soufflage peut être régulée, caractérisés en ce qu'ils sont constitués de ventilateurs (1) dont le courant d'air, orienté contre une face latérale de la pile de feuilles (2), est réglable angulairement par rapport à cette face latérale.
  2. Souffleurs de déliassage selon la revendication 1, caractérisés en ce que des ventilateurs (1), réglables en hauteur et en largeur, sont prévus sur le bord arrière de la pile de feuilles (2), dans le margeur et sur les côtés de la pile de feuilles (2), s'étendant perpendiculairement à celui-ci.
  3. Souffleurs de déliassage selon la revendication 2, caractérisés en ce qu'il est prévu comme souffleurs d'air de support des ventilateurs (1), montés sur les côtés de la pile de feuilles (2), perpendiculaires au bord arrière de celle-ci, qui en plus de l'air de support provenant des souffleurs d'air de support, placés sur la pile de feuilles (2), soufflent de l'air de support sous les feuilles supérieures, lors de leur transport dans le margeur.
  4. Souffleurs de déliassage selon l'une des revendications 1 à 3, caractérisés en ce que les ventilateurs (1) comportent une buse de tête (13) réalisée dans un matériau élastique, dont la section transversale est réglable en dimension et en position par rapport à l'axe (14) du ventilateur.
  5. Souffleurs de déliassage selon la revendication 4, caractérisés en ce que la buse de tête (13) est formée dans un tuyau et est placée avec son extrémité libre dans un dispositif de serrage (16), qui peut tourner avec le tuyau autour de l'axe (14) du ventilateur et qui est déplaçable pour régler la section transversale de la buse.
  6. Souffleurs de déliassage selon l'une des revendications 1 à 5, caractérisés en ce qu'il est prévu plusieurs ventilateurs (1) sur un support (5) commun qui est déplaçable sur des organes de guidage (4) du bâti (3) du margeur.
  7. Souffleurs de déliassage selon la revendication 6, caractérisés en ce que les ventilateurs (1) avec leur axe (14) sont réglables individuellement, verticalement et horizontalement, contre la face d'arrivée du courant de la pile de feuilles.
  8. Souffleurs de déliassage selon l'une des revendications 1 à 7, caractérisés en ce que plusieurs ventilateurs (1) sont superposés en hauteur.
EP89117084A 1988-10-10 1989-09-15 Dispositif de soufflage pour mangeurs de rotatives d'impression Expired - Lifetime EP0364737B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3834400A DE3834400A1 (de) 1988-10-10 1988-10-10 Lockerungsblaeser fuer bogenanleger von bogenrotationsdruckmaschinen
DE3834400 1988-10-10

Publications (3)

Publication Number Publication Date
EP0364737A2 EP0364737A2 (fr) 1990-04-25
EP0364737A3 EP0364737A3 (fr) 1991-02-20
EP0364737B1 true EP0364737B1 (fr) 1993-08-11

Family

ID=6364748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117084A Expired - Lifetime EP0364737B1 (fr) 1988-10-10 1989-09-15 Dispositif de soufflage pour mangeurs de rotatives d'impression

Country Status (5)

Country Link
US (1) US5110110A (fr)
EP (1) EP0364737B1 (fr)
JP (1) JPH02144338A (fr)
CN (1) CN1013758B (fr)
DE (2) DE3834400A1 (fr)

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US7988717B2 (en) 1995-03-01 2011-08-02 Boston Scientific Scimed, Inc. Longitudinally flexible expandable stent
US8663313B2 (en) 2011-03-03 2014-03-04 Boston Scientific Scimed, Inc. Low strain high strength stent
US8790388B2 (en) 2011-03-03 2014-07-29 Boston Scientific Scimed, Inc. Stent with reduced profile

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DE3534036A1 (de) * 1985-09-24 1987-03-26 Meyer Masch App Herbert Vorrichtung zum aufnehmen flaechiger werkstuecke
JPS62140948A (ja) * 1985-12-12 1987-06-24 Seiko Epson Corp Ｉｃ用パレツトの分離方法
DE3609550A1 (de) * 1986-03-21 1987-10-01 Mabeg Maschinenbau Gmbh Nachf Vorrichtung zum vorlockern
JPS63171724A (ja) * 1986-12-27 1988-07-15 Konica Corp 記録シ−ト搬送装置
JPH07108737B2 (ja) * 1987-02-12 1995-11-22 富士写真フイルム株式会社 可撓性ワ−クの分離取り出し装置
DE3706058A1 (de) * 1987-02-25 1988-09-08 Heidelberger Druckmasch Ag Anleger fuer eine druckmaschine
JPS63242843A (ja) * 1987-03-27 1988-10-07 Ricoh Co Ltd エア−給紙装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7988717B2 (en) 1995-03-01 2011-08-02 Boston Scientific Scimed, Inc. Longitudinally flexible expandable stent
US8663313B2 (en) 2011-03-03 2014-03-04 Boston Scientific Scimed, Inc. Low strain high strength stent
US8790388B2 (en) 2011-03-03 2014-07-29 Boston Scientific Scimed, Inc. Stent with reduced profile

Also Published As

Publication number Publication date
CN1041924A (zh) 1990-05-09
EP0364737A2 (fr) 1990-04-25
DE58905249D1 (de) 1993-09-16
DE3834400A1 (de) 1990-04-19
JPH02144338A (ja) 1990-06-04
EP0364737A3 (fr) 1991-02-20
CN1013758B (zh) 1991-09-04
DE3834400C2 (fr) 1992-10-29
US5110110A (en) 1992-05-05

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