EP2282846A1 - Breitschlitzdüse - Google Patents
BreitschlitzdüseInfo
- Publication number
- EP2282846A1 EP2282846A1 EP09753950A EP09753950A EP2282846A1 EP 2282846 A1 EP2282846 A1 EP 2282846A1 EP 09753950 A EP09753950 A EP 09753950A EP 09753950 A EP09753950 A EP 09753950A EP 2282846 A1 EP2282846 A1 EP 2282846A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slot
- outlet nozzle
- tube
- medium
- housing
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 230000009969 flowable effect Effects 0.000 claims abstract description 8
- 230000004323 axial length Effects 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
- B05C5/0258—Coating heads with slot-shaped outlet flow controlled, e.g. by a valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
- B05C5/0229—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet the valve being a gate valve or a sliding valve
- B05C5/0233—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet the valve being a gate valve or a sliding valve rotating valve, e.g. rotating perforated cylinder
Definitions
- the invention relates to a device for applying a flowable medium to a flat workpiece surface with a housing an elongated outlet nozzle for the medium forming and rotatably disposed in the housing arranged as a cylindrical tube media distributor, which has a running in the axial direction of the tube slot, which by rotating the medium distributor changes its position to the outlet nozzle, and whose outer surface forms sealing surfaces which sealingly abut against counter-surfaces, wherein the interior of the tube forms a feedable from a feed opening with the medium reservoir, the slot extends such that it passes through Rotating the medium distributor from an open position in which it forms a substantially over its entire length open passage from the reservoir to the outlet nozzle, in a closed position can be brought, in which the passage opening completely closed is.
- a device of the type in question is known from DE 33 22 154.
- a tubular media distributor is mounted in a two-part housing with a slot extending in the axial direction of the tube.
- the tube having a circular cross-section is rotatably mounted in a congruent inner cylinder.
- the two housing parts each form two halves of the inner cylinder, wherein a lower housing part has an outlet slot which is flanked by two outlet lips.
- the lower housing part has in the region of the inner cylinder extending along the edge of the exit slot recess with a wedge-shaped tapered bottom.
- the recess forms a throttle, so that the flow rate through the gap can be adjusted by varying the rotational position of the tube.
- DE 19757237 C2 describes a device in which a longitudinal slot is located in a substantially rectangular housing, which forms an outlet nozzle extending over substantially the entire length of the housing. Inside the housing there is a roller with a slot running in the form of a spiral on the roller surface. Between the outer wall of the roller and the inner wall of the housing, there is a reservoir for receiving a flowable medium, which may be a liquefied thermoplastic or a melted hot-melt adhesive. The roll surface lies in sealing engagement with a bottom surface of the housing in which the outlet nozzle formed by a longitudinal slot is located.
- the helical slot of the medium distributor thus crosses the outlet nozzle at a plurality of spaced-apart locations. At these intersections, the flowable medium can escape from the outlet nozzle. If the medium distributor is rotated, this exit point migrates further in the nozzle extension direction. With the rotary application head described there, separate adhesive threads can be applied to a flat workpiece surface.
- the invention has the object of developing a generic device such that low to medium-viscosity media closed area on a flat workpiece surface can be applied, the mass flow of the medium is precisely on and off.
- the counter-sealing surfaces do not come from the housing but from a housing in a recess in the housing. lying sealing strip are formed with a slot aligned with the outlet nozzle.
- a high sealing effect can be achieved, in particular by targeted application of a local pressure, so that the mass flow can be precisely switched on and off.
- the interior of the tube forms a reservoir which can be fed with a medium from a feed opening.
- the tube has a slot. This runs in such a way that it can be brought from an open position into a closed position by rotating the tube. In the open position, a passage opening which is open essentially over the entire length of the outlet opening forms from the reservoir to the outlet nozzle.
- the housing is preferably formed by a half-pipe.
- This half pipe runs centrally the outlet nozzle.
- the half tube forms a shell which receives the medium distributor.
- the half tube forms the sealing strip arranged in the region of the outlet nozzle.
- the material thickness of the sealing strip is preferably greater than the depth of the recess, so that the sealing strip protrudes like a base from the recess.
- the inner wall of the housing thus has a distance from the outer wall of the media distributor.
- the width of the sealing strip is limited to the immediate apex area of the tube.
- the sealing surfaces formed by the sealing strip run on an inner cylinder surface.
- the sealing strip forms sealing surfaces adapted to the outer wall of the pipe forming the medium distributor.
- the medium distributor Against these sealing surfaces of the medium distributor is pressed with An für Kunststoffen, so that in the closed position no medium can escape from the reservoir. If the medium distributor is rotated into the open position, the medium can flow through the slot of the tube and the slot of the sealing strip into the slot forming the outlet nozzle in order to emerge uniformly from the outlet nozzle.
- To increase the stability of the slot of the sealing strip may be interrupted by a plurality of webs. The webs are spaced apart, wherein the distance between the webs corresponds to at least ten times the slot width. The extension direction of the Exit nozzle measured length of the webs corresponds approximately to the slot width.
- the medium distributor has a substantially circular cross-sectional contour. Against the running on this contour outline lateral surface press rollers of An für Kunststoffe.
- the An für Republice are spaced apart and have an arcuate shape.
- the ends of the elbows are bolted to the edges of the half tube with adjusting screws.
- the pressure rollers of the outlet nozzle are opposite, forming an acute-angled isosceles triangle.
- the force with which the An für Republice act on the sealing surfaces of the pipe against the sealing surfaces of the sealing strip can be adjusted locally by means of the adjusting screws.
- the medium distributor forming tube is closed at its ends with storage plugs.
- One of the two bearing plugs forms an extension, which is connected to a shift lever, with which the medium distributor can be rotated.
- the bearing plug opposite this bearing plug forms the feed opening.
- the feed opening lies in the center of rotation of the medium distributor.
- the two ends of the half-tube are connected to headers, which slide the bearing plugs.
- the half tube may consist of two quarter tubes, which are connected to each other by means of the two head pieces but also with the help of the sealing strip and in particular glued.
- the pipe forming the medium distributor can be axially slotted over the entire length.
- the front ends of the tube can be glued to the bearing plug.
- the slot die according to the invention allows the application of low to medium-viscosity media and consists essentially of a slotted tube, which simultaneously forms a material reservoir.
- This tube has one or two side ports for media supply.
- the outlet nozzle forms the mating contour to the slot of the roller.
- the sealing strip has two mutually spaced by a slot sealing surfaces, which abut sealingly adjacent to the slot outer wall sections of the tube. The sealing strip thus lies between the slotted roller and the outlet nozzle. With the pressure pieces, the media distributor forming the slotted roller locally targeted to be pressed against the flanks of the outlet nozzle.
- the material reservoir is dimensioned such that a uniform pressure prevails in the slotted hollow roller, preferably of the order of magnitude of 0.5 to 6 bar.
- FIG. 1 is an enlarged view of the end shown in Fig. 1 right
- FIG. 3 is an enlarged view of the left end shown in FIG. 1 in the direction of arrow III in Fig. 1,
- FIG. 5 shows the section according to FIG. 4 with a view of the sectional plane in the open position
- FIG. 6 is a representation according to FIG. 5 in the closed position
- FIG. 6 is a representation according to FIG. 5 in the closed position
- FIG. 11 shows a section according to line XI in FIG. 10.
- the slot die illustrated in FIGS. 1 and 9 is an elongate, substantially cylindrical body with a length of between 500 and 1000 mm.
- This shell-like housing 1 forms the nozzle carrier.
- the shell which extends approximately over a semicircle, has in its center a longitudinal slot which forms an outlet nozzle 4.
- the longitudinal slot extends over the entire length of the half pipe 1, so that the half pipe 1 is composed of two quarter pipe sections.
- the two front ends of the half tube 1 are connected to head pieces 24 and 17, respectively.
- the head pieces 17, 24 form substantially cylindrical bodies and a bearing recess 17 ', 24'.
- the inner wall of the half tube 1 has a recess 7 having the shape of a rectangular groove.
- a sealing strip 3 is inserted in this recess 7.
- the sealing strip 3 extends essentially over the entire length of the half tube 1 and has a longitudinal direction. fenden, central slot.
- the material thickness of the sealing strip 3 is greater than the depth of the recess 7, so that the back of the Leckicht 3 'forming head portion of the sealing strip 3 protrudes like a socket over the inner wall of the housing 1.
- the slot 6 of the sealing strip 3 has interruptions in the form of spaced-apart webs 15.
- the slot 5 also does not extend to the respective ends of the sealing strip 3, so that these sections have a stabilizing effect.
- the sealing strip 3 can be glued into the recess 7. It forms a slot 5 flanking sealing surface 3, which is arched inwardly arcuate in cross-section, wherein the arc curve of the sealing surface 3 'of the outer contour of a tube 2 is adjusted.
- the angle ⁇ over which the sealing surface extends may preferably be in a range of 30 to 60 °.
- the support of the tube 2 in the region of the slot 5 thus extends only over a limited peripheral region, which is formed by the curved surface 3 'of the socket-like inner wall 26 of the housing 1 superior sealing strip 3.
- an arcuate clearance 28 is formed between the outer wall 27 of the tube 2 and the inner wall 26 of the housing 1 extending on an inner cylinder surface.
- the tube 2 forms a medium distributor and is mounted in the cavity of the half-tube.
- the tube 2 has a over the entire length of the tube 2 extending longitudinal slot 6.
- the longitudinal slot 6 is flanked by sealing surfaces T, the laugh in sealing contact with the symbolsdichtf 3 'of the sealing strip 3.
- the sealing strip 3 extends with Their on a réellezy linder formula extending counter-sealing surfaces 3 'only ü- over the immediate apex of the tube 2.
- only small radial forces are required in order to achieve a sufficiently high surface pressure in the area of the contact surfaces (sealing surfaces T 1 3').
- the tube 2 is closed at its front ends with bearing plugs 16, 21.
- the bearing plugs 16, 21 may be glued to the tube 2.
- the bearing plug 21 forms a central projection 22 which is mounted with the interposition of a bearing ring in the bearing recess 24 'of the head piece 24.
- a section of the bearing extension 22 projects over the front side. Thereof a shift lever 14 is attached.
- the bearing plug 16 is mounted with the interposition of a bearing ring in the bearing recess YI 'of the head piece 17.
- the bearing plug 16 forms a central opening 19 into which a coupling piece 20 is screwed.
- the coupling piece 20 can be connected to a supply hose or supply pipe, so that through the feed opening 19, the interior 25 of the tube 2 can be filled with a flowable medium.
- the interior of the tube 2 thus forms a reservoir 25.
- each Anyak Gland 9 forms two each about a bearing axis 12 rotatable pressure rollers 10.
- the two ends of the An für Seae 9 are connected by means of clamping screws 13 with the two edges of the half tube. They complement the cross section of the half tube 1 to form a full tube, wherein the pressure rollers 10 can be brought into exciting engagement with the outer wall of the tube 2 by means of the clamping force which can be applied and adjusted with the clamping screws 13.
- the a pressing piece 9 forming elbow has an inner wall facing the tube 2, which is spaced from the outer wall 27 of the tube 2.
- the pressure rollers 10 have sections which penetrate into this spacing space.
- the pressure rollers 10 are laterally offset to a running through the radial slot 4 diametrical, so that the bearing axis 12 and the outlet nozzle form 4 points of an isosceles triangle.
- the pressing pieces 9 which are substantially uniformly spaced from one another in the axial direction, a force can be exerted on the tube 2 in the radial direction, which force is discharged into the sealing surfaces 2 " , 3 'resting on one another.
- the clamping screws 13 the force can be adjusted locally, so that manufacturing tolerances in the course of the sealing surfaces T, 3 'can be compensated locally. If it comes to longer leaks to local leaks, they can be fixed by tightening the clamping screws 13 of the local An horraus 9.
- the operation of the device is the following:
- the reservoir 25 is fed with a flowable, in particular low to medium viscosity medium.
- this medium it is preferably a textured paint to be applied to a flat surface of a workpiece.
- the slot die is installed in a device, not shown, so that it can be displaced with respect to the workpiece or the workpiece relative to the slot die at a uniform speed.
- the medium 25 can emerge from the outlet nozzle 4. It first enters through the slot 6 into the slot 5 of the sealing strip 3, which is only slightly interrupted and cursing thereto, and from there into the longitudinal slot of the outlet nozzle 4 which is also aligned.
- the opening of the outlet nozzle 4 is formed by radially extending lips 8 flanked, which are formed by mutually parallel cutouts.
- the application of the medium takes place either from top to bottom on horizontal surfaces or sideways in the vertical direction on vertical surfaces. But it is also possible to work with the slot die overhead, so that horizontal surfaces can be coated from below.
- the medium distributor 2 can be displaced from the open position shown in FIG. 5 into the closed position shown in FIG. In this closed position, the slot 6 of the tube 2 opens against a sealing surface 3 'of the sealing strip 3, so that the longitudinal slot of the tube 3 is closed. In this position, no medium can escape through the outlet nozzle 4. This is only possible again when the medium distributor 2 has been turned back into the open position shown in FIG. 5 by means of the shift lever 14.
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008026147A DE102008026147A1 (de) | 2008-05-30 | 2008-05-30 | Breitschlitzdüse |
PCT/EP2009/056589 WO2009144295A1 (de) | 2008-05-30 | 2009-05-29 | Breitschlitzdüse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2282846A1 true EP2282846A1 (de) | 2011-02-16 |
EP2282846B1 EP2282846B1 (de) | 2016-08-31 |
Family
ID=41020756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09753950.6A Active EP2282846B1 (de) | 2008-05-30 | 2009-05-29 | Breitschlitzdüse |
Country Status (5)
Country | Link |
---|---|
US (1) | US8468967B2 (de) |
EP (1) | EP2282846B1 (de) |
DE (1) | DE102008026147A1 (de) |
ES (1) | ES2594435T3 (de) |
WO (1) | WO2009144295A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014212940A1 (de) | 2014-07-03 | 2016-01-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Modul, System und Verfahren zum Auftragen eines viskosen Mediums auf eine Oberfläche und Verfahren zum Herstellen des Moduls |
USD815263S1 (en) * | 2015-07-14 | 2018-04-10 | Sussman Automatic Corporation | Steamhead for steam generator |
CN109311046B (zh) * | 2016-05-31 | 2021-04-09 | 3M创新有限公司 | 凸轮模涂系统 |
CN114833016B (zh) * | 2022-06-06 | 2023-03-24 | 广东越海集成技术有限公司 | 一种涂胶装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3220653A (en) * | 1963-08-22 | 1965-11-30 | Amchem Prod | Liquid spraying device |
GB1169973A (en) * | 1967-03-03 | 1969-11-12 | Berisfords Ltd | Apparatus for rendering Adhesives into Coherent Form |
AT357505B (de) * | 1972-12-21 | 1980-07-10 | Zimmer Peter Ag | Mehrteilige spaltrakel fuer filmdruckmaschinen |
DE3322154A1 (de) * | 1982-08-21 | 1984-02-23 | Wolfgang Dipl.-Ing. 5000 Köln Breynk | Dosiervorrichtung |
JPH09327645A (ja) * | 1996-06-10 | 1997-12-22 | Kiroku Kobayashi | 高粘性塗料類の塗装用吐出ノズル装置 |
DE19757237C2 (de) | 1997-12-22 | 2000-05-11 | Wolfgang Puffe | Rotationsauftragskopf |
DE10216356C1 (de) * | 2002-04-13 | 2003-09-18 | Wolfgang Puffe | Rotationskopf mit Abstreifleisten |
DE10306884B3 (de) * | 2003-02-18 | 2004-06-03 | Wolfgang Puffe | Auftragskopf mit Drehschieberverschluss |
DE102004034422B4 (de) * | 2004-07-15 | 2006-12-28 | Nordson Corp., Westlake | Auftragskopf mit im Gehäuse federnd abgestütztem Düsenblock |
DE202006016674U1 (de) * | 2006-10-27 | 2007-02-22 | Nordson Corporation, Westlake | Auftragsvorrichtung zum Auftragen von flüssigem Material |
-
2008
- 2008-05-30 DE DE102008026147A patent/DE102008026147A1/de not_active Ceased
-
2009
- 2009-05-29 WO PCT/EP2009/056589 patent/WO2009144295A1/de active Application Filing
- 2009-05-29 EP EP09753950.6A patent/EP2282846B1/de active Active
- 2009-05-29 ES ES09753950.6T patent/ES2594435T3/es active Active
-
2010
- 2010-11-30 US US12/956,790 patent/US8468967B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2009144295A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2594435T3 (es) | 2016-12-20 |
EP2282846B1 (de) | 2016-08-31 |
US20110132940A1 (en) | 2011-06-09 |
DE102008026147A1 (de) | 2009-12-03 |
WO2009144295A1 (de) | 2009-12-03 |
US8468967B2 (en) | 2013-06-25 |
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