EP0315657B1 - Agencement d'application de substances fluides au moyen de machines de compression et de revetement - Google Patents

Agencement d'application de substances fluides au moyen de machines de compression et de revetement Download PDF

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Publication number
EP0315657B1
EP0315657B1 EP88904383A EP88904383A EP0315657B1 EP 0315657 B1 EP0315657 B1 EP 0315657B1 EP 88904383 A EP88904383 A EP 88904383A EP 88904383 A EP88904383 A EP 88904383A EP 0315657 B1 EP0315657 B1 EP 0315657B1
Authority
EP
European Patent Office
Prior art keywords
applicator roller
plates
roller
recesses
substance
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
EP88904383A
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German (de)
English (en)
Other versions
EP0315657A1 (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
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88904383T priority Critical patent/ATE70222T1/de
Publication of EP0315657A1 publication Critical patent/EP0315657A1/fr
Application granted granted Critical
Publication of EP0315657B1 publication Critical patent/EP0315657B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors
    • B41F15/426—Inking units comprising squeegees or doctors the squeegees or doctors being magnetically attracted

Definitions

  • the invention relates to a device for applying flowable substances in printing and coating machines with a magnetically pressed application roller, wherein contact surfaces are provided for the ends of the application roller, which converge in the direction of movement of the lower part of the application roller.
  • Such a device is disclosed in AT-B-347 388.
  • the contact surfaces described are intended to prevent a case-by-side inclination of the application roller leading to its lateral migration. According to AT-B-347 388, this is achieved by contact surfaces attached to fixed guide bodies, whereas the application roller itself lies loosely in the device and can only be removed from it by hand.
  • support plates on a support spar running parallel to the application roller, which have recesses which loosely encompass the journal of the application roller.
  • Such support plates have the function of facilitating the insertion of the roller, in particular in a circular template, and the removal of the same.
  • a major advantage of the magnetic pressing of roller doctor blades is that no significant forces are introduced over the ends of the doctor blade, so that there is no systematic deflection of the same.
  • the support plates provided are not designed as a bearing which fixes the position of the axle journals, but as a kind of cage which limits horizontal deflections and enables lifting and transport. Due to the play of the squeegee roller in the support plates and due to operational reasons occasionally inclined the round stencil to the running direction, the squeegee roller is sometimes not at right angles to the running direction, which, due to rolling and pressing, can cause a malfunction due to lateral migration. This creates a considerable thrust in the axial direction of this roller, which, especially with long rollers, leads to thrust plates which are intended to limit the transverse movement of the roller boring into and damaging the thrust plates which are perpendicular to the roller axis.
  • the object of the invention is to combine the advantages of the two known devices and at the same time to solve the problem which arises in that the height of the support plates is determined by the thickness of the application roller used in each case, so that the support plates cannot be used at the same time for substance limitation .
  • the object is achieved in that the contact surfaces are provided on support plates carried by a support bar, which have recesses for receiving axle journals of the application roller, and in that lateral substance limitation plates between the support plates and the application roller are arranged, which are penetrated by the journal of the application roller.
  • the support plates themselves can preferably be made of steel, since they hardly come into contact with the application roller during operation, while their recesses can be provided with closure plates, preferably formed as plastic bodies, which have the contact surfaces and are screwed to the support plates .
  • journal holder While it was previously customary to store the limiting plates serving to limit the substance lying in front of the application roller in the supporting plates, the journal holder according to the invention allows these substance limiting plates to be positioned exclusively by means of the journal of the doctor roller.
  • the boundary plates are placed on the journal so that they penetrate them and are aligned in the direction of movement on the one hand by the application roller and on the other hand by the support plate.
  • the lateral substance limiting plates are each provided with at least one slot, it being possible to insert or insert a limiting strip running parallel to the application roller, which also delimits the substance at the front, into two corresponding slots.
  • the spar for the roller is also used as an ink supply tube.
  • this may require such a large diameter of the support beam that there is considerable loss of color when changing colors. This can significantly reduce this be that not the support beam itself, but a further tube arranged in this serves as a substance supply tube.
  • this idea is preferably realized in such a way that a substance feed pipe is arranged in the carrying beam, the outlet openings of which open into openings in the carrying beam, wherein the supply pipe can preferably be welded to the carrying beam along the openings.
  • FIG. 1 shows the parts of a screen printing machine for circular stencil printing that are essential for the invention.
  • an application roller 6 is arranged, which is pressed against the inside of the circular stencil 16 by a magnet (not shown) arranged below a printing blanket 18, whereby substance in front of the application roller 6 is pressed into the web 17 to be printed.
  • the position of the application roller 6 is determined per se by the magnet arranged below the printing blanket 18, so that storage in the actual sense is not necessary.
  • Recesses 9 in support plates 8 and 8 ', which are arranged on both sides of the application roller 6, therefore only serve as a type of cage for journal 7 of the application roller 6 and in particular have the purpose of allowing the application roller 6 to be lifted out of the interior of the circular template 16.
  • the recesses 9 open horizontally in the hand of the support plates 8, 8 '. Excessive deflection of the application roller 6 in the horizontal direction (for example when the magnetic field is switched off) is prevented by a recess 20 in the recesses 9.
  • contact surfaces 11 are provided, which are on closure plates 10 are attached.
  • the latter close off the recesses 9 in the support plate 8.
  • the arrangement in the area of the left-hand support plate 8 ' is analog.
  • the function of these contact surfaces is based on the fact that an inclined application roller 6 shifts in the axial direction and thereby comes to rest on the contact surface 11, which returns the application roller 6 to the direction of movement 19 of the web 17.
  • a lateral substance limiting plate 12 is arranged on each side between the support plate 8 (or 8 ') and the application roller 6. Such an arrangement is much simpler than the usual storage of such strips on the support plates themselves.
  • their supply is not carried out directly by the support beam 1, but by a feed pipe 2 arranged in it smaller diameter.
  • the substance passes through outlet openings 3 in the feed pipe 2 and openings 4 in the support beam 1 onto a drip plate 5 and from there into the area in front of the application roller 6.
  • the feed pipe 2 and support beam 1 are connected by welds which run along the edge of the openings 4.
  • FIGS. 3 and 4 differs from that according to FIGS. 1 and 2 in that the oblique contact surfaces, which serve to align the roller 6, are now provided in recesses 22 in the roller 6.
  • the axle journals 25 interacting with the contact surfaces 11, on the other hand, are not arranged on the roller 6, but on the support plates 8.
  • substance limiting plates 24 are provided, each of which slidably encompass one end of the roller 6, whereas there is sufficient play between the shoulder of the journal 25 and these substance limiting plates 24 in order for the contact surfaces 11 to interact with those in the axis 23 of the roller 6 arranged axle pin 25 to enable.
  • the invention is equally suitable for the application of substances with or without the use of flat or round stencils.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Screen Printers (AREA)
  • Printing Plates And Materials Therefor (AREA)

Claims (5)

1. Dispositif pour appliquer des substances fluides dans des machines d'impression et d'enduction, avec un cylindre d'application (6) pressé magnétiquement en application, des surfaces d'arrêt (11) étant prévues pour les extrémités du cylindre d'application (6), surfaces qui convergent dans le sens de déplacement (19) de la partie inférieure du cylindre d'application (6), caractérisé en ce que les surfaces d'arrêt (11) sont prévues sur des plaques de support (8) qui sont portées par un longeron porteur (1) et qui présentent des évidements (9) destinés à recevoir des tourillons axiaux (7) du cylindre d'application (6), et en ce que des plaques latérales (12) de délimitation de substance sont disposées entre les plaques de support (8) et le cylindre d'application (6), et sont traversées par les tourillons axiaux (7) du cylindre d'application (6).
2. Dispositif selon la revendication 1, caractérisé en ce que les évidements (9) des plaques de support (8) réalisées en acier sont pourvus de plaques d'obturation (10), qui présentent les surfaces d'arrêt (11).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les plaques de délimitation (12) sont chacune pourvues d'au moins une fente (13, 14) pour l'insertion d'une barre avant de délimitation de substance (15).
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce qu'un tube d'amenée de substance (2) est disposé dans le longeron porteur (1) et ses ouvertures de sortie (3) débouchent dans des ouvertures (4) du longeron porteur (1), le tube d'alimentation (2) étant de préférence soudé au longeron porteur (1) le long des ouvertures (4) de ce dernier.
5. Dispositif pour appliquer des substances fluides dans des machines d'impression et d'enduction, avec un cylindre d'application (6) pressé magnétiquement en application et dont les extrémités présentent des évidements (22) qui convergent en direction de l'axe (23) du cylindre d'application (6), des tourillons axiaux (25) disposés sur les côtés du cylindre d'application (6) pénétrant dans les évidements (22), caractérisé en ce que les tourillons axiaux (25) sont prévus sur des plaques de support (8) assemblées à un longeron porteur (1), et en ce que des plaques latérales de délimitation de substance (24) sont disposées entre les plaques de support (8) et le cylindre d'application (6), et entourent en glissement une extrémité du cylindre d'application (6).
EP88904383A 1987-06-03 1988-06-03 Agencement d'application de substances fluides au moyen de machines de compression et de revetement Expired - Lifetime EP0315657B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88904383T ATE70222T1 (de) 1987-06-03 1988-06-03 Einrichtung zum auftragen fliessfaehiger substanzen in druck- und beschichtungsmaschinen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8708044U 1987-06-03
DE8708044 1987-06-03
DE8713787U DE8713787U1 (de) 1987-06-03 1987-10-10 Einrichtung zum Auftragen fließfähiger Substanzen in Druck- und Beschichtungsmaschinen
DE8713787U 1987-10-10

Publications (2)

Publication Number Publication Date
EP0315657A1 EP0315657A1 (fr) 1989-05-17
EP0315657B1 true EP0315657B1 (fr) 1991-12-11

Family

ID=25951842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88904383A Expired - Lifetime EP0315657B1 (fr) 1987-06-03 1988-06-03 Agencement d'application de substances fluides au moyen de machines de compression et de revetement

Country Status (5)

Country Link
US (1) US4989509A (fr)
EP (1) EP0315657B1 (fr)
AT (1) ATE70222T1 (fr)
DE (2) DE8713787U1 (fr)
WO (1) WO1988009726A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9003129U1 (de) * 1990-03-15 1991-07-18 Zimmer, Johannes, Klagenfurt, Kärnten Rollrakelgerät, insbesondere für Rundschablonen-Auftragungen
US5285724A (en) * 1990-08-31 1994-02-15 Ricoh Company, Ltd. Ink scraper for a stencil printer
US5235394A (en) * 1992-09-02 1993-08-10 Eastman Kodak Company Push-pull wicking device for fixing roller
NL9300338A (nl) * 1993-02-24 1994-09-16 Stork Brabant Bv Inrichting voor het ophangen van een rakel in een cilindrische zeef van een rotatie-zeefdrukmachine.
JP3276239B2 (ja) * 1994-03-22 2002-04-22 理想科学工業株式会社 孔版印刷ドラム
DE4447123C1 (de) * 1994-12-29 1996-04-11 Koenig & Bauer Albert Ag Kammerrakel für eine Rotationsdruckmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US628651A (en) * 1898-11-18 1899-07-11 George W Cummings Rotary stenciling-machine.
FR2159764A5 (fr) * 1971-11-08 1973-06-22 Gall Jean Paul
US3988986A (en) * 1972-04-10 1976-11-02 Peter Zimmer Anti-drooling device for screen-printing machine
DE2305443C3 (de) * 1973-02-03 1981-01-15 Mitter & Co, 4815 Schloss Holte Vorrichtung zur Begrenzung des Farbtümpels vor einer im Inneren einer Siebdruckschablone angeordneten Auftragsrolle
DE2336734C3 (de) * 1973-07-19 1979-01-18 Mitter & Co, 4815 Schloss Holte Vorrichtung zum beidseitigen Antrieb einer Rundschablone jnit einer Walzenrakel in einer Druckmaschine für Warenbahnen
AT337644B (de) * 1975-08-29 1977-07-11 Zimmer Johannes Rakelrolle, insbesondere fur den schablonendruck
US4216716A (en) * 1975-09-12 1980-08-12 Johannes Zimmer Apparatus for squeegee guidance in screen printer
DE3032345C2 (de) * 1980-08-28 1984-06-28 Mathias 4815 Schloss Holte Mitter Lagerung einer Rakel mit seitlich außerhalb der Schablone eines Siebdruckwerkes angeordneten Lagern
DE3108963C2 (de) * 1981-03-10 1983-10-20 Mathias 4815 Schloss Holte Mitter Auftragsvorrichtung zum Aufbringen von Chemikalien in verschäumter Form

Also Published As

Publication number Publication date
WO1988009726A1 (fr) 1988-12-15
US4989509A (en) 1991-02-05
DE8713787U1 (de) 1988-09-29
ATE70222T1 (de) 1991-12-15
DE3866857D1 (de) 1992-01-23
EP0315657A1 (fr) 1989-05-17

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