EP0315657A1 - Einrichtung zum auftragen fliessfähiger substanzen in druck- und beschichtungsmaschinen. - Google Patents
Einrichtung zum auftragen fliessfähiger substanzen in druck- und beschichtungsmaschinen.Info
- Publication number
- EP0315657A1 EP0315657A1 EP88904383A EP88904383A EP0315657A1 EP 0315657 A1 EP0315657 A1 EP 0315657A1 EP 88904383 A EP88904383 A EP 88904383A EP 88904383 A EP88904383 A EP 88904383A EP 0315657 A1 EP0315657 A1 EP 0315657A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substance
- plates
- application roller
- support
- support beam
- 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
Links
- 239000000126 substance Substances 0.000 title claims abstract description 77
- 238000007639 printing Methods 0.000 title claims abstract description 16
- 239000011248 coating agent Substances 0.000 title claims abstract description 11
- 238000000576 coating method Methods 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 title abstract 2
- 230000009969 flowable effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000004043 dyeing Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000010422 painting Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 abstract 1
- 239000003086 colorant Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010022 rotary screen printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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 support plates being attached to a support beam, which ends projecting into recesses in the support plates and preferably being formed as axle journals loosely include a magnetically pressed application roller.
- the application roller is pressed on by means of a magnetic bar arranged below the web to be printed.
- the support plates for such a doctor roller have the function of preventing unintentional deflections of the same from the normal position and of allowing the roller to be lifted out.
- An essential advantage of the magnetic pressure 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 supporting plates provided are not designed as a bearing that fixes the position of the axle journals, but as a kind of cage that, as mentioned, 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, occasional skewing of the circular 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, particularly in the case of long rollers, leads to start-up plates which limit the roll transverse movement are provided, drill into the thrust plates perpendicular to the roll axis and damage them.
- the supporting bar for the upward support means for example, a roller (Roll ⁇ doctor blade) or a coater (coating bar) can be used for substance delivery.
- a roller Roll ⁇ doctor blade
- a coater coating bar
- the invention has for its object, among Vermei ⁇ the disadvantages of the prior dung Tech ⁇ nik a functionally reliable device with support plates of the initially described kind as well as a sparingly arbei ⁇ tend to provide apparatus for applying flowable substances with carrier beam delivery.
- the support plates themselves can preferably be made of steel, since they hardly come into contact with the application roller during operation, while its recesses can be provided with closure plates, preferably designed as plastic bodies, which have the contact surfaces and are screwed to the support plates.
- the axle journal holder allows these substance boundary plates to be positioned exclusively by means of the axle journal of the doctor roller.
- the limiting plates are placed on the axle journals 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 delimitation plates are advantageously provided with at least one slot each, it being possible to insert or insert a delimitation strip running parallel to the application roller in two corresponding slots, which delimits the substance also at the front.
- the support bar 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.
- a further tube arranged in it serves as the 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 thereof.
- the relevant object directed towards the substance supply is achieved in that a substance supply line, preferably a substance supply pipe, with at least one in the support beam a substance outlet opening is arranged, which opens into the outlet opening of the support beam.
- a substance supply line preferably a substance supply pipe
- a substance outlet opening is arranged, which opens into the outlet opening of the support beam.
- the additional substance supply tube can be connected to the latter at least in the region of the outlet openings, and the connection in the carrier bar can be carried out by welding, gluing or similar, suitable measures. It is important that the interior of the carrying beam should and can serve to accommodate the substance supply tube, but must not be impaired by the leaking substance. For this reason the substance supply pipe along the Austritts ⁇ réelle (s) • the carrier beam should welded or glued with this also in other embodiments of the invention.
- the substance supply pipe can be held in the support beam in a force-locking manner.
- gill means are arranged in the supporting beam, which act on the outer surface of the substance feed pipe.
- These clamping means can expediently be formed by projections, such as webs, arms or tabs, which protrude into the interior of the carrying beam and which center the substance supply tube in its working position.
- the support beam can advantageously be designed as a profile tube, preferably as an aluminum profile tube, which results in advantages in terms of manufacture and in terms of weight, while with regard to the corrosion resistance of the substance supply tube and to the differently aggressive substances which this must be managed, the same can be made of stainless material.
- the materials for the spar and tube you will have to consider the need for the connection to be made.
- Fig. 1 shows an embodiment in a partially sectioned side view
- Fig. 2 is a plan view of that indicated in Fig. 1
- FIG. 5 shows a section of a substance carrier and FIG. 6 shows a modified embodiment of the device of FIG. 3.
- 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 inside a circular stencil 16, which is pressed against the inside of the round stencil 16 by a magnet (not shown) arranged below a printing blanket 18, as a result of which substance coming in front of the application roller 6 enters the substrate printing web 17 is pressed.
- 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 the journal 7 of the application roller 6 and in particular have the purpose of enabling the application roller 6 to be lifted out of the interior of the circular template 16.
- the recesses 9 open horizontally in the edge 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 connected to the end 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 in
- a lateral substance limitation plate 12 is arranged on each side between the support plate 8 (or 8 1 ) and the application roller 6. Such an arrangement is much simpler than the hitherto customary mounting of such strips on the support plates themselves.
- 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.
- the embodiment shown in FIGS. 3 and 4 differs from that of FIGS. 1 and 2 in that the oblique contact surfaces, which serve to align the roller 6, are now provided in recesses 22 of the roller 6.
- the axle journals 25 interacting with the contact surfaces 11, however, 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 in accordance with the invention to interact with those in the axis 23 of the roller 6 arranged journal 25 allow.
- FIGS. 5 and 6 which can be used in general in machines for printing, coating, varnishing, dyeing, impregnation or similar application methods, becomes superfluous only on the basis of its functionally essential components, with omission Parts for the special application in round stencil printing are shown and explained by means of a round stencil 16.
- a holding element or profile 100 is attached to a hollow support bar 1, which has an application roller 6 for applying a flowable substance of the most varied viscosity a material path indicated by 17, moving in the direction of the arrow, or else pieces of material which are fed to the device in a suitable manner, leads.
- a substance feed tube 2 Inside the support bar 1, which is designed here as a profile tube 101 with a circular cross section, is located a substance feed tube 2. This has a substantially smaller diameter than the profile tube 101 and is provided with substance outlet openings 3 which open into outlet openings 4 in the profile tube 101. Profile tube 101 and substance supply tube 2 extend across the width of the machine. The openings 3 and 4 are arranged in such a way that a substance supplied through the substance supply tube 2, for example printing ink, is adjusted sufficiently on the stencil 16 in order to meet the application (printing) requirements.
- the latter is welded or glued to the inside wall of the profile tube 101 in the region of the outlet openings 4 (Fig. 5), or the substance supply tube 2 is clamped firmly against the outlet opening area, as can be seen from Fig. 4.
- webs or retaining tabs which can be part of the profile, are arranged in the profile tube 101 and exert sufficient pressure on the substance supply tube 2 in the direction of the outlet openings 4. This makes it possible to push the substance supply tube 2 laterally into the profile tube 101 or to pull it out of the latter.
- this arrangement allows the substance feed tube to be completely prefabricated, that is to say the substance outlet openings 3 are provided at suitable intervals for different outlet requirements, while the profile tube 101 can be subsequently drilled and in particular coated on its inner wall in order to ensure a tight fit of the substance feed tube .
- a substance outlet opening is formed with a mouthpiece or a neck-shaped outlet attachment, which each penetrate through the outlet opening of the carrying spar.
- the invention is equally suitable for applying 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)
- Screen Printers (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Printing Plates And Materials Therefor (AREA)
Description
Claims
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 | 1987-10-10 | ||
| DE8713787U DE8713787U1 (de) | 1987-06-03 | 1987-10-10 | Einrichtung zum Auftragen fließfähiger Substanzen in Druck- und Beschichtungsmaschinen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0315657A1 true EP0315657A1 (de) | 1989-05-17 |
| EP0315657B1 EP0315657B1 (de) | 1991-12-11 |
Family
ID=25951842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88904383A Expired - Lifetime EP0315657B1 (de) | 1987-06-03 | 1988-06-03 | Einrichtung zum auftragen fliessfähiger substanzen in druck- und beschichtungsmaschinen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4989509A (de) |
| EP (1) | EP0315657B1 (de) |
| AT (1) | ATE70222T1 (de) |
| DE (2) | DE8713787U1 (de) |
| WO (1) | WO1988009726A1 (de) |
Families Citing this family (6)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US628651A (en) * | 1898-11-18 | 1899-07-11 | George W Cummings | Rotary stenciling-machine. |
| FR2159764A5 (de) * | 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 |
-
1987
- 1987-10-10 DE DE8713787U patent/DE8713787U1/de not_active Expired
-
1988
- 1988-06-03 AT AT88904383T patent/ATE70222T1/de not_active IP Right Cessation
- 1988-06-03 WO PCT/AT1988/000043 patent/WO1988009726A1/de not_active Ceased
- 1988-06-03 DE DE8888904383T patent/DE3866857D1/de not_active Expired - Lifetime
- 1988-06-03 US US07/328,251 patent/US4989509A/en not_active Expired - Fee Related
- 1988-06-03 EP EP88904383A patent/EP0315657B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8809726A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE8713787U1 (de) | 1988-09-29 |
| US4989509A (en) | 1991-02-05 |
| DE3866857D1 (de) | 1992-01-23 |
| EP0315657B1 (de) | 1991-12-11 |
| ATE70222T1 (de) | 1991-12-15 |
| WO1988009726A1 (fr) | 1988-12-15 |
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