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EP3638428A1 - Buse d'application - Google Patents

Buse d'application

Info

Publication number
EP3638428A1
EP3638428A1 EP18725453.7A EP18725453A EP3638428A1 EP 3638428 A1 EP3638428 A1 EP 3638428A1 EP 18725453 A EP18725453 A EP 18725453A EP 3638428 A1 EP3638428 A1 EP 3638428A1
Authority
EP
European Patent Office
Prior art keywords
channels
outlet
nozzle body
channel
nozzle according
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.)
Withdrawn
Application number
EP18725453.7A
Other languages
German (de)
English (en)
Inventor
Sten Mittag
Heiko Bitzel
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.)
Atlas Copco IAS GmbH
Original Assignee
Atlas Copco IAS GmbH
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 Atlas Copco IAS GmbH filed Critical Atlas Copco IAS GmbH
Publication of EP3638428A1 publication Critical patent/EP3638428A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • 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

Definitions

  • the invention relates to an application nozzle for applying viscous material to a workpiece according to the preamble of claim 1.
  • Such an application nozzle is known, for example, from US Pat. No. 6,695,923 B1 and US Pat. No. 7,332,035 B1. It has a nozzle body with a material inlet opening, to which a metering valve is connected, via which viscous material metered into a cavity in the nozzle body forming distribution chamber can be introduced. Towards the bottom, the distribution chamber is delimited by an application plate in which material outlet openings are arranged in one or more rows. Such application nozzles enable a flat material application.
  • the outlet channels extend substantially parallel to one another. It is furthermore advantageous if the inlet channel, optionally together with partial inlet channels, the distributor channels and the outlet channels form a cavity in the nozzle body that is symmetrical with respect to a median plane. Material application is further enhanced when the distribution channels are located at any location at a distance from the material outlet surface that is at least 1.5 times, and preferably at least 2 times, the diameter of the material outlet ports. It is possible that all Materialauslasso réelleen are equal. However, it is also possible that the Materialauslasso réelleen have different sizes, wherein the preferred ratio of distance of the distribution channels to Materialauslass construction to the diameter of the Materialauslasso réelleen refers to the respective largest material outlet.
  • the outlet channels each have an initial region branching off from one of the distributor channels and an end region extending to the associated material outlet have, wherein the diameter of the end portion is smaller than the diameter of the initial region. It is preferred that the diameter of each of the outlet channels at the transition from the starting region to the end region decreases in a stepwise manner.
  • the material outlet surface is preferably formed by abrading a surface of the blank, the abrading preferably occurring after drilling the end portions of the outlet channels. Since the drilling of the end portions can be done only with great effort with such precision that the initial areas bounding inner walls are exactly aligned with the end walls bounding inner walls, the end portions are formed with a smaller diameter than the initial areas, so that no offset of End regions is formed with respect to the initial areas, if their central axes do not coincide exactly.
  • the end areas extend substantially perpendicular to the material outlet area. This can be achieved with high precision by the preferred manufacturing method with 3D printing of the blank and subsequent drilling of the end regions and grinding with optional subsequent hardening of a surface of the blank to form the material outlet surface, so that the inner surfaces of the end regions with the material outlet as accurate as possible Include ° angle.
  • each of the distribution channels has at least two successive, curved in different directions sections.
  • each of the distribution channels starting from the branching point, first narrows and then widens again. It is further preferred that each of the distribution channels narrows again towards its end.
  • the nozzle body is suitably in one piece and preferably made of metal, in particular made of stainless steel or aluminum.
  • the nozzle body has only one cavity formed by the inlet channel, the distribution channels and the outlet channels.
  • the nozzle body it is also possible for the nozzle body to have two or even more cavities of identical geometry, each formed by an inlet channel, two distributor channels and a plurality of outlet channels. As a result, the width of the material strip to be applied to the workpiece can be further increased if the row of further material outlet openings adjoins the row of outlet openings.
  • the material outlet openings and possibly the further material outlet openings of each row are arranged at equal distances from each other. It is further preferred that the respective last of the material outlet openings or the further material outlet openings of each row are arranged at a distance from an edge of the nozzle body that corresponds to half the distance between the material outlet openings or between the further material outlet openings. It is then possible to attach several such application nozzles to one another. to extend the series of material outlet openings while maintaining the mutual distance.
  • Figure 1 is ascribeddüse in a perspective view.
  • Fig. 2 shows the application nozzle of FIG. 1 in a plan view of its front side
  • Fig. 3 is a representation of the application nozzle of FIG. 1, 2 in section along the line A-A.
  • the application nozzle 10 shown in the drawing serves to apply a viscous material to a workpiece. It has a nozzle body 12, which is made in one piece from stainless steel or aluminum, and in which a cavity 14 is arranged. Via a material inlet opening 16, to which a metering valve can be connected, the viscous material can be introduced into the cavity 14. Downstream of the nozzle body 12 is bounded by a Materialauslass Structure 18, in which a plurality of Materialauslassö réelleen 20 are arranged in a row. From the material inlet opening 16, an inlet channel 22 extends to a branching point 24, from which two distributor channels 26 extend in opposite directions. From each of the distribution channels 26, a plurality of outlet channels 28 extend to the material outlet surface 18, each of the outlet channels 28 terminating at one of the material outlet openings 20.
  • the cavity 14 formed by the inlet channel 22, the distribution channels 26 and the outlet channels 28 is symmetrical with respect to a median plane 30 perpendicular to the plane of the drawing of FIG.
  • Each of the distribution channels 26 has a substantially S-shaped curvature with a first portion 32 curved in a first direction and a second portion 34 curved in a second direction opposite the first direction.
  • the transverse Section of the distribution channels 26 initially narrows starting from the branching point 24, before it widens again and narrows again to one end 36 of the distribution channel 26. All of one of the distribution channels 26 branching outlet channels 28 have a different length, which is measured between the respective distribution channel 26 and the Materialauslass Design 18. The length of the outlet channels 28 is the lower, the farther the respective outlet channel 28 is removed from the branching point 24.
  • the length of the outlet channels 28 corresponds to at least 1.5 times, in the embodiment shown even more than 3 times the diameter of the material outlet openings 20, which are all identical in size.
  • Each of the outlet channels 28 also has an initial region 38 branching directly from the respective distributor channel 26 and an end region 40 extending to the associated material outlet opening 20, the end regions 40 having a smaller diameter than the initial regions 38. The transition between the starting region 38 and the end region 40 each of the outlet channels 28 takes place at a stage 42.
  • the application nozzle 10 has in its nozzle body 12 a further cavity 14 ', which is formed identically with the cavity 14.
  • the additional cavity 14 ' is formed by a further inlet channel 22', two further distributor channels 26 'and further outlet channels 28' and can be filled with viscous material via a further material inlet opening 16 '.
  • the further outlet channels 28 ' terminate at further material outlet openings 20' which are arranged in the material outlet area 18 in a row which represents a continuation of the row formed by the material outlet openings 20.
  • a metering valve can also be connected to the further material inlet opening 16 '.
  • the Materialauslassö Maschinenen 20 and the other Materialauslassö Maschinenen 20 ' are arranged at equal mutual distances.
  • a blank of the nozzle body 12 is first produced by means of a 3D printing process.
  • These are introduced in a second process step by drilling into the blank.
  • the material outlet surface 18 is formed by abrading the downwardly facing surface of the blank.
  • the invention relates to an application nozzle 10 for applying viscous material to a workpiece, comprising a nozzle body 12 having a material inlet opening 16 and a plurality of material outlet openings 20 arranged in a material outlet area 18 in at least one row.
  • an inlet channel 22 extends from the material inlet opening 16 to at least one branching point 24 in the nozzle body 12 such that at each branching point 24 two distributor channels 26 extend in opposite directions from the inlet channel 22 in the nozzle body 12, the distributor channels 26 are each arranged over their entire length at a distance from the material outlet surface 18, and that at least one outlet channel 28 in the nozzle body 12 extends from each distributor channel 26 to one of the material outlet openings 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne une buse d'application (10) destinée à appliquer une matière visqueuse sur une pièce, comportant un corps de buse (12), qui présente une ouverture (16) d'entrée de matière et plusieurs ouvertures (20) de sortie de matière, qui sont disposées en au moins une rangée dans une surface (18) de sortie de matière. Selon l'invention, un canal d'entrée (22) s'étend, dans le corps de buse (12), de l'ouverture (16) d'entrée de matière à au moins un point de ramification (24); en chaque point de ramification (24), deux canaux de répartition (26) s'étendent dans des directions opposées l'une à l'autre du canal d'entrée (22) dans le corps de buse (12), chacun des canaux de répartition (26) étant, sur toute sa longueur, disposé à distance de la surface (18) de sortie de matière ; et au moins un canal de sortie (28) s'étend, dans le corps de buse (12), de chaque canal de répartition (26) à une des ouvertures (20) de sortie de matière.
EP18725453.7A 2017-06-12 2018-05-14 Buse d'application Withdrawn EP3638428A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017112892.1A DE102017112892A1 (de) 2017-06-12 2017-06-12 Auftragsdüse
PCT/EP2018/062320 WO2018228761A1 (fr) 2017-06-12 2018-05-14 Buse d'application

Publications (1)

Publication Number Publication Date
EP3638428A1 true EP3638428A1 (fr) 2020-04-22

Family

ID=62196545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18725453.7A Withdrawn EP3638428A1 (fr) 2017-06-12 2018-05-14 Buse d'application

Country Status (6)

Country Link
US (1) US20200086340A1 (fr)
EP (1) EP3638428A1 (fr)
KR (1) KR20200017400A (fr)
CN (1) CN110730691A (fr)
DE (1) DE102017112892A1 (fr)
WO (1) WO2018228761A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102721359B1 (ko) * 2022-11-11 2024-10-25 주식회사 티앤알바이오팹 대면적 프린팅을 위한 슬릿 노즐

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08266939A (ja) * 1995-03-30 1996-10-15 Kawasaki Steel Corp ヘッダ装置
WO2016037842A1 (fr) * 2014-09-11 2016-03-17 Huntsman International Llc Procédé de conception et de fabrication d'une rampe distributrice pour appliquer un mélange liquide expansible visqueux à un dispositif de stratification
EP3127619A1 (fr) * 2015-08-05 2017-02-08 Cannon S.p.A. Procédé, dispositif et appareil de distribution de mélanges de polyuréthane

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687137A (en) * 1986-03-20 1987-08-18 Nordson Corporation Continuous/intermittent adhesive dispensing apparatus
US5334247A (en) * 1991-07-25 1994-08-02 Eastman Kodak Company Coater design for low flowrate coating applications
US6695923B1 (en) 2000-11-21 2004-02-24 Sealant Equipment & Engineering, Inc. Multiple orifice applicator system and method of using same
US20030131791A1 (en) 2000-11-21 2003-07-17 Schultz Carl L. Multiple orifice applicator system and method of using same
DE10256641A1 (de) * 2002-12-03 2004-06-17 Kiener Maschinenbau Gmbh Verfahren zur Einstellung einer Arbeitsbreite einer Düsenanordnung zum Auftragen eines fließfähigen Mediums auf eine Materialbahn und eine Vorrichtung zur Durchführung des Verfahrens
GB0312974D0 (en) * 2003-06-06 2003-07-09 Spencer Alan Dispensing apparatus and a dispensing nozzle for use therewith
US7041171B2 (en) * 2003-09-10 2006-05-09 Kastalon, Inc. Nozzle for use in rotational casting apparatus
DE102006021309A1 (de) * 2006-05-02 2007-11-08 Hauni Maschinenbau Aktiengesellschaft Leimauftragsdüse
DE102008047266A1 (de) * 2008-09-12 2010-04-15 Nordson Corp., Westlake Vorrichtung zum Auftragen von Fluiden
DE102009048820A1 (de) * 2009-10-09 2011-04-14 Andritz Küsters Gmbh Vorhang-Auftragswerk

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08266939A (ja) * 1995-03-30 1996-10-15 Kawasaki Steel Corp ヘッダ装置
WO2016037842A1 (fr) * 2014-09-11 2016-03-17 Huntsman International Llc Procédé de conception et de fabrication d'une rampe distributrice pour appliquer un mélange liquide expansible visqueux à un dispositif de stratification
EP3127619A1 (fr) * 2015-08-05 2017-02-08 Cannon S.p.A. Procédé, dispositif et appareil de distribution de mélanges de polyuréthane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018228761A1 *

Also Published As

Publication number Publication date
KR20200017400A (ko) 2020-02-18
US20200086340A1 (en) 2020-03-19
DE102017112892A1 (de) 2018-12-13
CN110730691A (zh) 2020-01-24
WO2018228761A1 (fr) 2018-12-20

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