EP0427015B1 - Dispositif pour le guidage flottant de bandes ou feuilles de matériaux - Google Patents

Dispositif pour le guidage flottant de bandes ou feuilles de matériaux Download PDF

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Publication number
EP0427015B1
EP0427015B1 EP90119819A EP90119819A EP0427015B1 EP 0427015 B1 EP0427015 B1 EP 0427015B1 EP 90119819 A EP90119819 A EP 90119819A EP 90119819 A EP90119819 A EP 90119819A EP 0427015 B1 EP0427015 B1 EP 0427015B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
nozzles
nozzle body
blowing
air
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
EP90119819A
Other languages
German (de)
English (en)
Other versions
EP0427015A2 (fr
EP0427015A3 (en
Inventor
Hilmar Vits
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 EP0427015A2 publication Critical patent/EP0427015A2/fr
Publication of EP0427015A3 publication Critical patent/EP0427015A3/de
Application granted granted Critical
Publication of EP0427015B1 publication Critical patent/EP0427015B1/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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • 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
    • B65H2406/111—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along a curved path, e.g. fluidised turning bar
    • 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
    • B65H2406/112—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along preferably rectilinear path, e.g. nozzle bed for web

Definitions

  • the invention relates to a device for the suspended guiding of material webs or sheets of material to be conveyed, with nozzles fed by blown air in a nozzle body, each of which has a sunk surface in the nozzle body and inclined to the outside of the nozzle body, for the blowing air jet emerging from the nozzle opening.
  • the nozzles can be designed so that they not only guide the material web or the sheet of material without contact, but also exert a tensile force that can be used for conveying the material web or the sheet of material or for spreading.
  • a tensile force that can be used for conveying the material web or the sheet of material or for spreading.
  • Such requirements cannot be met with simple nozzle openings in a nozzle body, because they do not define any of them Outflow of the blowing air can be achieved.
  • nozzles have been developed which, due to their geometric design, guarantee a defined outflow of the blown air (DE-C-19 07 083). These nozzles are formed by an arcuate incision in the nozzle body, the area lying within the arc being lowered in a trough-like manner.
  • U.S. Patent 4,500,229 discloses an apparatus for conveying cylindrical objects. Blast air jets emerge through nozzles arranged in a table surface in a nozzle body and blow on the cylindrical objects to be conveyed and then separated, the nozzle bodies being countersunk in the nozzle body (1) and inclined to the outside (2) of the nozzle body (1) arranged guide surface (3a) for the blown air jet emerging from the nozzle opening (4) and the guide surface (3a) is part of the lateral surface (3b) of a conical recess (3) in the nozzle body (1) and the nozzle opening (4) eccentrically in the recess (3) is arranged.
  • the cylindrical objects are in contact with the table surface with one of their end faces.
  • the object of the invention is to create, based on DE-C-19 07 083, a device for the suspended guiding of material webs and sheets to be conveyed, which has a higher contact security than the known device.
  • the device according to the invention lacks the tongue-shaped nozzle lips required in the prior art for the shaping and alignment of the blowing air jet direction, which led to frictional contact with the material web.
  • the eccentric arrangement of the nozzle opening in a conical depression with a correspondingly directed blowing air jet direction alone means that the blowing air emerges from the nozzle as a source flow in a defined sector.
  • the choice of the blowing angle makes it possible to determine whether the focus of the device should be more on conveying or more on suction. The larger the blowing angle, the larger the sector of the source flow, so that the suction forces increase and the delivery forces decrease. The maximum conveying effect is achieved if the blowing air jet direction runs parallel to the guide surface.
  • each nozzle has a plurality of nozzle openings, each with a tangential component of the blowing air jet direction, the tangential components of the blowing air jet directions of all nozzle openings being in the same direction.
  • a spiral-shaped source flow is generated on the entire circumference of the conical depression.
  • the nozzle body is made of sheet metal and the nozzles are molded into the sheet.
  • the nozzle body is solid and the nozzles are formed in the nozzle body by machining.
  • each nozzle is formed by a shaped body which is used in the nozzle body, which is composed in particular of sheet metal. This alternative is particularly suitable for large quantities.
  • the nozzle body can be designed as a blow strip with nozzles arranged in a row transversely to the guide direction. If the aim is to achieve a spreading effect at the same time, the blowing jet direction of the nozzles in the central section of the bar is essentially perpendicular to the longitudinal axis of the nozzle body and passes from this section in a graduated manner in a direction parallel to the ends. If a conveying effect is to be exerted on the material sheets, then the blowing jets of all nozzles are directed essentially in the conveying direction.
  • the intensity of the guidance or conveyance can be influenced by a more or less dense fitting of the nozzle body with nozzles.
  • the nozzle bodies can also be designed according to the air cushion principle.
  • An application according to the invention consists, for example, in that the nozzle body, as an arcuate deflecting body, has at least one row of nozzles arranged on each of its two edges running transversely to the conveying direction. If several rows are arranged on each edge, the nozzles of the two rows should be offset from one another.
  • the nozzle body can also be used in the case of a sheet deposit with a conveyor track arranged above a sheet stack, in particular with a slide bar arranged downstream of a cross cutter, for the overlap of the sheets to be deposited one after the other.
  • a nozzle body is used, in which each nozzle has blow-out openings arranged symmetrically around the center.
  • the nozzle is formed by a shaped body F which is inserted in a recess in the nozzle body 1 made of sheet metal.
  • the Blas povertystrahlraum S is not parallel to the guide surface 3a, but includes therewith a blowing angle ⁇ of less than 60 o.
  • the exemplary embodiment of FIGS. 2, 2a also differs from that of FIGS. 1, 1a in that the upper region of the conical recess 3 has a larger opening angle than the lower region.
  • FIGS. 3, 3a corresponds to that of FIGS. 1, 1a with the difference that not one nozzle opening but three nozzle openings 4a, 4b, 4c are provided and the blowing air jet directions S a , S b , S c additionally have a tangential component, where the tangential components are in the same direction.
  • nozzle bodies corresponding to FIGS. 1 to 2a are designed as parallel strips.
  • Each bar 11, 12, 13 carries a row of nozzles, the resulting jet direction of which is aligned with the source flow.
  • nozzles according to one of the exemplary embodiments 1 to 2a are used.
  • the resulting blowing directions are not directed in the same direction, but are arranged in the area of the center of the strip substantially perpendicular to the axis of the strip and then gradually move towards the ends in a direction parallel to the axial direction of the strip.
  • a spreading effect is exerted on the material web.
  • the gradation of the direction down to parallel to the axial direction and to the ends is chosen because otherwise the additive lateral forces exerted by the individual nozzles in the middle would be too great.
  • the nozzle body extends perpendicular to the conveying direction and has two rows of nozzles on each of its two edges extending transversely to the conveying direction, whereby the nozzles of adjacent rows are offset by half a pitch.
  • 6 shows no nozzle designs according to the invention; however, the nozzle designs according to the invention can be used without Insert another in the nozzle body. Between the edges, the nozzle body has an arcuate deflecting body B. The blowing air jet direction of the nozzles is at the two edges directed towards each other so that an air cushion carrying the material web M builds up between the edges in connection with the material web M to be guided.
  • the nozzles on one edge and the nozzles on the other edge are transverse to the conveying direction and open to the material web M channels N 1, N 2, which have the task of contributing to the Bernoulli effect of air flowing out between the nozzles to counteract the small material web distance.

Landscapes

  • Advancing Webs (AREA)

Claims (8)

  1. Dispositif de guidage flottant de bandes de matière ou de feuilles de matière devant être transportées, comprenant des buses alimentées en air de soufflage et situées dans un corps de buses (1) qui comporte pour chaque buse une surface directrice (3a) qui est noyée dans le corps de buses (1) et inclinée sur le côté extérieur (2) du corps de buses (1) et qui est destinée au jet d'air de soufflage émergeant de l'orifice (4) de la buse, caractérisé en ce que la surface directrice (3a) fait partie de la surface d'enveloppe (3b) d'une cavité conique (3) que comporte le corps de buses (1), en ce que l'orifice (4) de la buse est excentré dans la cavité (3) et en ce que le jet d'air de soufflage est orienté sur la surface directrice (3a) et sa direction inscrit avec cette surface directrice (3a) un angle de soufflage (β) qui est inférieur à 60°.
  2. Dispositif selon la revendication 1, caractérisé en ce que chaque buse comporte plusieurs orifices de buse (4a, 4b, 4c) dont chacun présente une composante tangentielle de la direction du jet d'air de soufflage (Sa, Sb, Sc), la composante tangentielle de la direction du jet d'air de soufflage (Sa, Sb, Sc) de tous les orifices de buse (4a, 4b, 4c) étant orientée dans le même sens.
  3. Dispositif selon la revendication 1, caractérisé en ce que chaque buse est formée d'un corps moulé (F) qui est inséré dans le corps de buses (2).
  4. Dispositif selon la revendication 1, caractérisé en ce que le corps de buses (1) est conformé en baguette comportant des buses disposées en rangée.
  5. Dispositif selon la revendication 4, caractérisé en ce que la direction des jets d'air de soufflage (5) de toutes les buses est orientée sensiblement dans le même sens.
  6. Dispositif selon la revendication 4, caractérisé en ce que la direction des jets d'air de soufflage des buses est perpendiculaire à l'axe longitudinal du corps de buses dans la partie médiane de la baguette et elle diverge progressivement à partir de cette partie pour prendre une direction parallèle à l'axe longitudinal du corps de buses (1) et orientée vers les extrémités.
  7. Dispositif selon la revendication 4, caractérisé en ce que le corps de buses est conformé en corps de déviation (B) en arc de cercle comprenant suivant le principe du coussin d'air au moins une rangée de buses disposée sur chacun des deux bords perpendiculaires à la direction de transport (R).
  8. Dispositif selon la revendication 7, caractérisé en ce que plusieurs rangées de buses décalées les unes par rapport aux autres sont prévues sur chaque bord.
EP90119819A 1989-11-06 1990-10-16 Dispositif pour le guidage flottant de bandes ou feuilles de matériaux Expired - Lifetime EP0427015B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3936846 1989-11-06
DE3936846A DE3936846C1 (fr) 1989-11-06 1989-11-06

Publications (3)

Publication Number Publication Date
EP0427015A2 EP0427015A2 (fr) 1991-05-15
EP0427015A3 EP0427015A3 (en) 1991-08-21
EP0427015B1 true EP0427015B1 (fr) 1995-05-17

Family

ID=6392930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119819A Expired - Lifetime EP0427015B1 (fr) 1989-11-06 1990-10-16 Dispositif pour le guidage flottant de bandes ou feuilles de matériaux

Country Status (3)

Country Link
US (1) US5102118A (fr)
EP (1) EP0427015B1 (fr)
DE (2) DE3936846C1 (fr)

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DE4406848C2 (de) * 1994-03-03 1997-11-06 Koenig & Bauer Albert Ag Blaskasten zum schwebenden Führen von Bogen oder Bahnen
DE4406847C2 (de) * 1994-03-03 1997-07-10 Koenig & Bauer Albert Ag Vorrichtung zum schwebenden Führen von Bogen oder Bahnen
US5485325A (en) * 1994-04-04 1996-01-16 Minnesota Mining And Manufacturing Company Magazine storage system for recording strips
DE4447963B4 (de) * 1994-08-03 2005-12-29 Heidelberger Druckmaschinen Ag Einrichtung zum berührungsfreien Führen bogenförmigen Materials
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DE19628620A1 (de) * 1995-08-08 1998-01-29 Heidelberger Druckmasch Ag Leiteinrichtung für einen frisch bedruckten Bogen
DE19635629B4 (de) * 1996-09-03 2006-08-17 Heidelberger Druckmaschinen Ag Vorrichtung zur berührungslosen Bogenführung in einer Bogendruckmaschine
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EP2053663A1 (fr) * 2007-10-25 2009-04-29 Applied Materials, Inc. Transport de toile avec coussin d'air dans un processus de revêtement de toile
EP2216831A1 (fr) * 2009-02-05 2010-08-11 Applied Materials, Inc. Système PVD modulaire pour PV flexible
US20100266766A1 (en) * 2009-04-21 2010-10-21 Stefan Hein Guiding devices and methods for contactless guiding of a web in a web coating process
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Also Published As

Publication number Publication date
EP0427015A2 (fr) 1991-05-15
DE59009090D1 (de) 1995-06-22
US5102118A (en) 1992-04-07
EP0427015A3 (en) 1991-08-21
DE3936846C1 (fr) 1991-04-18

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