EP0423274A1 - Rakelgerät zum auftragen fliessfähiger oder pulverförmiger substanzen auf ebene flächen. - Google Patents
Rakelgerät zum auftragen fliessfähiger oder pulverförmiger substanzen auf ebene flächen.Info
- Publication number
- EP0423274A1 EP0423274A1 EP90906046A EP90906046A EP0423274A1 EP 0423274 A1 EP0423274 A1 EP 0423274A1 EP 90906046 A EP90906046 A EP 90906046A EP 90906046 A EP90906046 A EP 90906046A EP 0423274 A1 EP0423274 A1 EP 0423274A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- doctor
- squeegee
- doctor blade
- squeegee device
- joint
- 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
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
Definitions
- Squeegee device for applying flowable or powdery substances to flat, flat surfaces.
- the subject of this invention is a doctor device or doctor element for applying or for spreading or spreading flowable or powdery substances onto flat surfaces, webs or the like. in connection with or without the use of stencils, preferably in connection with magnetically effected squeegee pressure.
- the squeegee device presented here is equipped with a squeegee element, which consists of a roller, a profile bar, a professional bar, an elastically deformable squeegee blade or the like. can exist. It can also be a squeegee application element (squeegee).
- a squeegee element which consists of a roller, a profile bar, a professional bar, an elastically deformable squeegee blade or the like. can exist. It can also be a squeegee application element (squeegee).
- the length of the doctor device or doctor element usually extends transversely to the direction of movement or running of the web or the like. and, depending on their width, can be less than one or even several meters.
- roll squeegee which is made of steel or another magnetizable material and is pressed on by magnetic force; This is mainly because this squeegee element does not require any mechanical mounting, fastening or clamping, but only loosely placed or inserted and then magnetically pressed and held or rolled in the magnetic field.
- this device Compared to other devices that work magnetically, squeegee-pressed, this device has a disadvantage that impairs its function: the squeegee contact pressure is so great due to the weight of the squeegee device that the magnetic contact pressure can only be used as a reinforcing force and that the adjustment or Applying only a small doctor pressure is therefore not possible.
- Squeegee devices which consist of a support, spar, tube or the like which is constructed to be as rigid as possible are still as before. exist and which are mounted at the ends, on both sides of the application surface or web or the like, fixed in height or attached to the machine frame, in practice the most widespread.
- the second type which is widespread in practice, is the magnetically pressed roll doctor devices described above, or, more correctly, roll doctor elements.
- Roll akelele ene because the magnetically pressed squeegee rollers are usually only loosely inserted or laid on and held magnetically.
- the object of the invention presented herewith is to provide a doctor blade device which is mounted in a height-fixed manner or fixed to the machine frame in accordance with the conventional prior art with the ends of the doctor blade carrier construction, the doctor blade spar, the doctor blade tube or the like. that, however, with regard to its working function, the doctor element attached to this doctor device carrier is advantageously designed - compared to the previously known prior art - so that the bending stiffness of the tool carrier construction cannot be transferred to the doctor element and the doctor element, door acting alone, unimpeded by the inherent rigidity of the squeegee device, parallel to the surface and allowing the working edge or contact surface of the squeegee element or, if appropriate, including a squeegee element retaining strip, to lie evenly over the entire application width or squeegee element length.
- the object of this invention is essentially characterized by an auxiliary device integrated in the doctor device constructed according to the invention for the plane-parallel adjustment of the doctor element or a profile bar holding the doctor element or possibly only touching or loosely encompassing the application surface or the template or the like.
- auxiliary device integrated in the doctor device constructed according to the invention for the plane-parallel adjustment of the doctor element or a profile bar holding the doctor element or possibly only touching or loosely encompassing the application surface or the template or the like.
- FIGS. 1 and 2 each show a complete cross section through a doctor device 1 designed according to the invention.
- the reference numeral 2 designates a preferably rigid bending-shaped squeegee cross member, support beam, support tube or the like. If tubular, this support beam or the like can. can also be used for substance delivery, which is indicated in the drawing in FIGS. 1 and 2.
- This support beam is - which is not shown in the drawing, but is easily imaginable - attached to its two ends, if at all, in a vertically movable manner.
- This support beam 2 can also be thought of as being position-changeable in any other spatial direction depending on the requirement, but usually there is no change in position during a respective operating state. Changes in location are only carried out for the purpose of handling, installation and removal or cleaning and exchange for other doctor blades, or changes in location to be handled in accordance with the setting are made only for the purpose of setting or changing the setting of application parameters.
- the spatial arrangement of the doctor device can be done as desired.
- Doctor devices constructed in accordance with the invention are therefore not conceivably arranged in a free-standing manner, but, in addition to being in contact with the work surface, application surface, stencil, magnetic bar, magnetic roller or the like, need a location fixation of the support beam, cross member or the like. 2, it being possible in an advantageous, additionally characterizing embodiment according to the invention to change the position of the cross member or the like. 2 to derive changes in the application parameters by causing changes in the angular position of the doctor element or of the professionals contacting, surrounding or holding the doctor element.
- U-shaped support profile part 3 designates a U-shaped support profile which is fastened to the cross beam support member 2 with parts 4, but a one-piece design - ie parts 2, 3 and 4 together a support profile - is also possible.
- the length of the U-shaped support profile part 3 is shorter than the cross member support beam 2, can correspond to the application width in order to increase the transverse rigidity of the cross member 2, but can also be arbitrarily shorter, for example only as a fork piece, or can also be divided into two or more pieces, arranged and fastened in the area of the working width.
- part labeled 3 in at least one such part 3 there is - preferably in the middle of the application area - at least one rotary or rotary sliding joint or the like labeled 5. used, whose axis is designated 6.
- the part 7 is designated by the part which is hooked into the part 5 or fastened to it with a rotary or, if necessary, a rotating and sliding seat connection, or thereby also with the parts 3, 4 and 2 being rotatable or rotating and sliding seat movable on the other hand, connected or adhered to.
- the part 7 can either be a professional bar or a relatively narrow, preferably centrally arranged swivel arm, or it can be two or more parts which are divided over the working width and have the same cross-section in FIGS. 1 and 2 and are distributed over the working width his; a continuous professional bar is also conceivable, the length of which corresponds approximately to the working width, whereby - analogous to part 5 of the description - it is in turn possible to place this profile bar 7 only once in the middle region on a e.g. To fix swivel 5 or to e.g. two rotary sliding joints which are arranged approximately in the area of the two outer thirds or quarters of the profile strip length 7. It is also conceivable to use a centrally arranged, e.g. Swivel joint 5 to be combined with two swivel and slide joints arranged in the end region.
- a centrally arranged, e.g. Swivel joint 5 to be combined with two swivel and slide joints arranged in the end
- FIG. 7 A simple example of a rotary and sliding joint connection of the type described above is shown in FIG. It can be seen here that the part 7 is provided with a bore which is widened as a longitudinal slot instead of a bore which fits centrally on the swivel joint 5, as a result of which the part 7 in FIG. 3 has an additional relative mobility, indicated by an arrow, with respect to the part 3 obtained. According to a further embodiment of the invention, this embodiment is also suitable for the function of the pivoting or sliding mobility of the profile strip or of the parts or of the part 7 in relation to the doctor device 1.
- a leg of a hinge joint 8 - it can also be several hinge joints of shorter overall length - attached. 5 On the second leg of this hinge joint or this hinge joint, a profile bar forming or holding the doctor element or touching or possibly encompassing doctor element, profile bar is fastened, the length of which is preferably equal to the working width. 4 shows a variant of this, in which the hinge joint 8 is not designed as a rotary joint hinge, as shown in FIGS. 1 and 2, but rather as a flexible joint or flexible joint strip.
- a strip 10 made of one or more parts and made of magnetizable material is attached to the squeegee holding strip 9, by means of which the squeegee element 120 is magnetically pressed. 5
- the magnetisable profile strip 10 is embedded in the profile strip 9 — in one part or in several parts — and has a smaller cross section than in FIG. 1. This is because, in FIG. 2, a roll made of a magnetizable round profile
- squeegee element 121 is used, so that in this Fig.2, embodiment variant of a squeegee device according to the invention the magnetizable profile 10 does not have to press on the squeegee elements 121, but only the squeegee element profile strip 9 surrounding this squeegee element, counteracting a susceptible substance back pressure, on the squeegee element
- 35 121 has to hold tight.
- This magnetizable or permanently magnetic slide-in bar 11 - can also be slide-in parts of the same cross-section as shown - can be used in addition to strengthening the magnetic contact pressure of the doctor blade element profile 9 to the doctor blade element 121 when the doctor blade device is out of operation and by the contact surface or work surface or template is lifted off, on the surrounding or contact surfaces of the doctor element profile strip 9 closest to the magnetizable parts 11 or at most 10 and / or 11.
- this embodiment, shown in FIG. 2 of a doctor unit which is two-part for its function (operating state) is converted into a doctor unit which is one part for the idle state or for handling purposes.
- FIG. 3 shows the subject matter of the invention in connection with a slot-type doctor element consisting of two doctor-element profile strips 122 and 123 which are connected to one another by plug-in connections.
- the hinge or flexible joint 8 which extends the main subject of the invention was dispensed with, i.e. no such joint is required for this embodiment.
- the device parts 3 and 7 connecting sliding joint or rotating and sliding joint parts 5 according to the invention are either arranged only once in the middle or twice in the end areas or three in the case of very large working widths or overall lengths - arranged up to five times over the entire length to think.
- FIG. 4 it should also be said that the magnetizable profile strip 10, which is made in one or more parts, is inserted loosely and accordingly also interchangeably into the doctor element profile strip 9.
- 13 in FIG. 1 is a fastening gill strip for the squeegee strip 12, the arrow 14 the direction of movement, 15 a conveyor belt with a web lying thereon, 16 in FIGS. 1, 2 and 3 a circular template and 17 and 18 in Fig. 1 to 3 called a so-called magnetic bar.
- FIG. 4 denotes a magnetic roller and 20 denotes the material web to be coated by the doctor device according to the invention.
- the arrows denoted by 21 in FIGS. 1, 2 and 4 denote the preferred position-changeable direction for the device setting.
- the change in the position of the squeegee device according to the invention in its preferably flexurally stiff with 2 and 3 or possibly also 7 device parts, which are brought about by the end fastenings for the squeegee carrier spar 2, which are not shown in this direction and can be moved, is considered an important one Functional advantage expanding the main idea of the invention, quantity control of the application performance is effected by the change in the angle of the doctor element profile strip or the substance accumulation area located between it and the application surface or template depending on this change in position.
- This change in the angular position which is important for the control of the application quantity output, is represented by the arrow 22 in FIG.
- the same as previously explained, also applies to the embodiment variants FIGS. 1 and 4, but not to FIG. 3.
- a further, particularly advantageous embodiment, or a functional advantage which extends the main idea of the invention, can be achieved in that it is now possible for the first time by the rotary or sliding joint connection integrated in a doctor device constructed according to the invention in accordance with the main idea of the invention is to manufacture such a squeegee device, the crossmember or supporting beam of which can be constructed to be flexurally stiff - and thus also exposed to the unavoidable dangers of bending and bending - without the doctor element also subjecting these bending or bending risks to the suspension of the disadvantageous consequences arising from this for the application process.
- doctor blade construction parts which are suitable for the respective application requirements, independently of the other doctor blade construction parts, either in a manner that is inherently rigid due to their inherent strength, or to a desirable extent with flexible or slackness.
- doctor blades manufactured according to the invention enables high-quality application processes in larger working widths and with greater economy than before.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- Lubricants (AREA)
- Paper (AREA)
- Accessories For Mixers (AREA)
- Detergent Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0092489A AT399832B (de) | 1989-04-18 | 1989-04-18 | Rakelgerät mit einem das rakelgerät haltenden quer- oder tragholm zum auftragen bzw. zum auf- oder einstreichen fliessfähiger oder auch pulverförmiger substanzen auf ebene flächen, bahnen oder dgl. |
AT924/89 | 1989-04-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0423274A1 true EP0423274A1 (de) | 1991-04-24 |
EP0423274B1 EP0423274B1 (de) | 1993-11-03 |
Family
ID=3502975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90906046A Expired - Lifetime EP0423274B1 (de) | 1989-04-18 | 1990-04-17 | Rakelgerät zum auftragen fliessfähiger oder pulverförmiger substanzen auf ebene flächen |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0423274B1 (de) |
JP (1) | JPH03502909A (de) |
AT (2) | AT399832B (de) |
AU (1) | AU5442590A (de) |
BR (1) | BR9006721A (de) |
DE (1) | DE59003336D1 (de) |
WO (1) | WO1990012687A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19736563C1 (de) * | 1997-08-22 | 1998-10-22 | Trans Textil Gmbh | Vorrichtung zum Auftragen von Schmelzkleber auf Bahnen |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3187718A (en) * | 1962-05-28 | 1965-06-08 | Black Clawson Co | Flexible doctor blade coating apparatus |
US3302610A (en) * | 1963-10-10 | 1967-02-07 | Beloit Corp | Inverted trailing blade |
AT296927B (de) * | 1967-01-31 | 1972-03-10 | Peter Zimmer | Vorrichtung zum Auftragen von flüssigen oder pastösen Massen |
IT999822B (it) * | 1973-11-26 | 1976-03-10 | Belcit Italia Spa | Dispositivo per la regolazione dello spessore dello strato di sospensione di patinatura deposto su un nastro continuo di carta in una macchina patinatrice |
AT328402B (de) * | 1974-04-30 | 1976-03-25 | Zimmer Peter | Einrichtung zum behandeln von warenbahnen auf druckmaschinen |
GB1561858A (en) * | 1977-02-07 | 1980-03-05 | Vickerys Ltd | Doctors for paper-making machines |
DE2825907B2 (de) * | 1978-06-13 | 1981-02-26 | Jagenberg-Werke Ag, 4000 Duesseldorf | Vorrichtung zum Aufbringen einer Beschichtung auf eine Materialbahn |
AT376399B (de) * | 1981-12-07 | 1984-11-12 | Zimmer Johannes | Rakelvorrichtung |
ATE86546T1 (de) * | 1987-10-10 | 1993-03-15 | Johannes Zimmer | Rakelgeraet. |
-
1989
- 1989-04-18 AT AT0092489A patent/AT399832B/de not_active IP Right Cessation
-
1990
- 1990-04-17 WO PCT/AT1990/000032 patent/WO1990012687A1/de active IP Right Grant
- 1990-04-17 JP JP2505896A patent/JPH03502909A/ja active Pending
- 1990-04-17 BR BR909006721A patent/BR9006721A/pt not_active IP Right Cessation
- 1990-04-17 DE DE90906046T patent/DE59003336D1/de not_active Expired - Lifetime
- 1990-04-17 EP EP90906046A patent/EP0423274B1/de not_active Expired - Lifetime
- 1990-04-17 AU AU54425/90A patent/AU5442590A/en not_active Abandoned
- 1990-04-17 AT AT90906046T patent/ATE96734T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9012687A1 * |
Also Published As
Publication number | Publication date |
---|---|
AT399832B (de) | 1995-07-25 |
EP0423274B1 (de) | 1993-11-03 |
ATE96734T1 (de) | 1993-11-15 |
WO1990012687A1 (de) | 1990-11-01 |
AU5442590A (en) | 1990-11-16 |
BR9006721A (pt) | 1991-08-06 |
ATA92489A (de) | 1994-12-15 |
JPH03502909A (ja) | 1991-07-04 |
DE59003336D1 (de) | 1993-12-09 |
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