EP0534931A1 - Installation d'enduction d'une substance liquide visceuse - Google Patents

Installation d'enduction d'une substance liquide visceuse Download PDF

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Publication number
EP0534931A1
EP0534931A1 EP92890200A EP92890200A EP0534931A1 EP 0534931 A1 EP0534931 A1 EP 0534931A1 EP 92890200 A EP92890200 A EP 92890200A EP 92890200 A EP92890200 A EP 92890200A EP 0534931 A1 EP0534931 A1 EP 0534931A1
Authority
EP
European Patent Office
Prior art keywords
substance
boundary wall
collecting space
application
doctor element
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.)
Granted
Application number
EP92890200A
Other languages
German (de)
English (en)
Other versions
EP0534931B1 (fr
Inventor
Johannes Zimmer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0534931A1 publication Critical patent/EP0534931A1/fr
Application granted granted Critical
Publication of EP0534931B1 publication Critical patent/EP0534931B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/08—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating from outlets being in, or almost in, contact with the textile material

Definitions

  • the invention relates to a device for applying a, in a closed system within the device to the application area under pressure, flowable viscous substance on flat surfaces, webs, rollers and the like.
  • a substance supply device which distributes the viscous flowable substance uniformly over the application width, the outlet openings of which open into a collecting space, the boundary walls of which form a slot forming the application area.
  • Such devices are, for example. known from the two Austrian patents 379,526 and 382,091 and from the European patent 147 536 based on these two Austrian patents.
  • the device described therein are characterized in that the slot rests sealingly on all sides against the template or the surface to be applied, and that this sealing contact is brought about by a magnetizable mass or magnetized by a magnetic field.
  • This all-round sealing of the slot leads to the following undesirable behavior when working with a template in practice.
  • the substance film remaining after application to the template is removed through the other side of the slot.
  • the object of the present invention is to provide a device in which these defects do not occur.
  • the inventive idea is to use dynamic sealing through the movement of the template and the web, which is particularly feasible for viscous substances. That means through the movement and the adhesion a force acts on the substance in the slot, which keeps the supply pressure in balance.
  • the object was achieved in that there is a dynamically sealing gap between the front boundary wall of the collecting space and the template or the surface to be applied, as viewed in the direction of movement, whereas the rear boundary wall with one adjacent to this boundary wall and the template or to the surface Squeegee element seals the collecting space.
  • the dynamic seal prevents substance from escaping through the gap.
  • Another object is to provide such a doctor device which can apply vertically upwards. It was no longer possible or necessary in printing and coating technology to create units that work against gravity. The previous machines either work with gravity or they work with nozzle devices. However, in order to create printing machines that require little space, it is advantageous to create printing stations that can work in any spatial position, including from bottom to top or diagonally from bottom to top.
  • the device according to the invention has a special device which constantly conveys the substance, a highly sensitive control device and a corresponding width-distributing substance supply device, which are also the subject of the invention.
  • FIGS. 1 and 2 show different embodiments of the invention, namely FIG. 1 a device with a doctor blade, the device working from bottom to top and FIG. 2 a device with a squeegee.
  • the substance according to the invention is fed via a feed line 14, which at the same time is also support beam of the device according to the invention.
  • the substance is then passed from the feed line 14 through a branching channel system of a substance supply device 8 and then reaches a collecting space 9.
  • the channels of the branching system can be thin-walled tubes which are connected to one another via distribution system openings 12.
  • a covering such as a square tube, in which a body 18 provided with channels 21 on its outer surfaces is preferably inserted from plastic.
  • the channels 21 are connected to one another at the distribution points 12 and it is thus possible to design a lightweight, width-distributing substance feed device 8 in a space-saving manner.
  • the collecting space 9 ends in a slot designed as an application area.
  • the front boundary wall 2 in the direction of movement is shorter than the rear boundary wall 1 in the direction of movement. That is, there is a gap between the application area and the template 3 or the application surface 4.
  • a doctor element is a roller doctor which is made of magnetizable material and can be pressed against the template 3 or, in FIG. 2, against the application surface 4 via a magnetic device 7.
  • the magnet 7 is switched off and a holding magnet 13 in the rear boundary wall 1 then comes into action. That is, when the magnet 7 is switched off, the holding magnet 13, which can be a permanent magnet, comes into effect and lifts the roller doctor blade 5 off the support surface.
  • the pressure inside the collecting space 9 on the substance is kept as low as possible, ie as low as the substance supply requires until application. It should be set so low that no passage of the substance through the openings of the template 3 is brought about by this pressure.
  • the arrangement according to the invention makes it possible to also work against gravity. To optimally adjust the pressure according to the invention To enable and to keep constant is, for example. a pump with a control device available.
  • a measuring device 10 is integrated in the collecting space 9, ie a measuring probe, the sensitivity of which responds to the special requirements of the substance supply in the low pressure range.
  • the substance supply can also be in the form of a pressure vessel from which the application substance is supplied in a pressure-adjustable manner.
  • FIG. 2 Another embodiment of the invention is shown in FIG. 2, in which a cavity 15 is incorporated into the rear boundary wall 1, in which a rod 16 made of magnetizable material is inserted.
  • This rod 16 carries a doctor blade 6 and is raised and lowered by a magnetic device located in the upper wall.
  • a device is created by the invention which is constructed similarly to a nozzle slot doctor blade device, that is with a limited i.e. defined substance exit area, with such a minimal substance pressure that there is no substance application.
  • the substance pressure should be as close to zero as possible in connection with a highly sensitive measuring probe and is set as low as is necessary for the measuring and control process. There is no pressure control here, i.e. thus no control in order to be able to set different pressures, as is the case for slot nozzle devices according to the known prior art.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coating Apparatus (AREA)
EP19920890200 1991-09-23 1992-09-22 Installation d'enduction d'une substance liquide visceuse Expired - Lifetime EP0534931B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1916/91 1991-09-23
AT191691A AT401622B (de) 1991-09-23 1991-09-23 Vorrichtung zum auftragen einer fliessfähigen viskosen substanz

Publications (2)

Publication Number Publication Date
EP0534931A1 true EP0534931A1 (fr) 1993-03-31
EP0534931B1 EP0534931B1 (fr) 1996-05-08

Family

ID=3523796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920890200 Expired - Lifetime EP0534931B1 (fr) 1991-09-23 1992-09-22 Installation d'enduction d'une substance liquide visceuse

Country Status (4)

Country Link
EP (1) EP0534931B1 (fr)
AT (1) AT401622B (fr)
DE (1) DE59206224D1 (fr)
ES (1) ES2089486T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404334B (de) * 1994-12-12 1998-10-27 Zimmer Johannes Hohlkörper-tragholm einer auftragungs-/rakelvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2134983A1 (de) * 1970-07-22 1972-02-03 Zimmer, Peter, Kufstein, Tirol (Österreich) Rakelvorrichtung
US3827397A (en) * 1971-06-29 1974-08-06 F Hebberling Apparatus for coating moving filamentary strands
WO1985001226A1 (fr) * 1983-09-12 1985-03-28 Johannes Zimmer Procede et dispositif pour appliquer un materiau sur un support
WO1987006504A1 (fr) * 1986-04-30 1987-11-05 Johannes Zimmer Dispositif pour appliquer de faibles ou tres faibles quantites de substances coulantes
EP0297528A1 (fr) * 1987-06-30 1989-01-04 Johannes Zimmer Dispositif de raclage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452833A (en) * 1982-02-08 1984-06-05 Consolidated Papers, Inc. Paper coating method
US4503804A (en) * 1983-01-17 1985-03-12 Consolidated Papers, Inc. Edge seal assembly for paper coating apparatus
FI71081C (fi) * 1984-05-11 1986-11-24 Waertsilae Oy Ab Bestrykningsanordning
SE467528B (sv) * 1988-09-27 1992-08-03 Btg Kaelle Inventing Ab Anordning foer bestrykning av en loepande bana

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2134983A1 (de) * 1970-07-22 1972-02-03 Zimmer, Peter, Kufstein, Tirol (Österreich) Rakelvorrichtung
US3827397A (en) * 1971-06-29 1974-08-06 F Hebberling Apparatus for coating moving filamentary strands
WO1985001226A1 (fr) * 1983-09-12 1985-03-28 Johannes Zimmer Procede et dispositif pour appliquer un materiau sur un support
WO1987006504A1 (fr) * 1986-04-30 1987-11-05 Johannes Zimmer Dispositif pour appliquer de faibles ou tres faibles quantites de substances coulantes
EP0297528A1 (fr) * 1987-06-30 1989-01-04 Johannes Zimmer Dispositif de raclage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404334B (de) * 1994-12-12 1998-10-27 Zimmer Johannes Hohlkörper-tragholm einer auftragungs-/rakelvorrichtung

Also Published As

Publication number Publication date
EP0534931B1 (fr) 1996-05-08
ES2089486T3 (es) 1996-10-01
DE59206224D1 (de) 1996-06-13
AT401622B (de) 1996-10-25
ATA191691A (de) 1996-03-15

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