EP0754095B1 - Düse zum dosierten auftragen von klebstofftropfen - Google Patents
Düse zum dosierten auftragen von klebstofftropfen Download PDFInfo
- Publication number
- EP0754095B1 EP0754095B1 EP95913854A EP95913854A EP0754095B1 EP 0754095 B1 EP0754095 B1 EP 0754095B1 EP 95913854 A EP95913854 A EP 95913854A EP 95913854 A EP95913854 A EP 95913854A EP 0754095 B1 EP0754095 B1 EP 0754095B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesive
- nozzle
- coating
- drops
- 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.)
- Expired - Lifetime
Links
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
Definitions
- the metering device arranged in the positioning unit of the SMD placement machine is lowered until the spacer sits on the printed circuit board, the shock caused by this being absorbed by the adhesive cartridge being deflected.
- an adhesive drop is then pressed onto the circuit board by pressurized air with the adhesive cartridge, the amount of adhesive metered in depending on the metering time and the pressure applied to the adhesive cartridge by depends on the nozzle geometry and the viscosity of the adhesive.
- the dynamic viscosity in turn depends on the temperature of the adhesive.
- a cooling and / or heating device for temperature stabilization of the adhesive passed through can therefore also be assigned to the dosing nozzle (cf. EP-A-0 282 748).
- the influence of the nozzle geometry on the amount of adhesive added is achieved by using nozzles of different sizes consciously exploited.
- the dosing nozzles must therefore be carried out regularly Intervals are cleaned or exchanged.
- plastic nozzles are also used, which according to contamination caused by adhesive residues sticking easily thrown away and replaced with new nozzles.
- WO-A-91 12 921 describes a device for metering Applying drops of adhesive known to a substrate, at which the adhesive continuously in an annular Metal pipe is circulated.
- glue in the metal tube is its inner wall with an anti-adhesive, adhesive-repellent coating provided, for example, from polytetraflurethylene consists.
- This anti-adhesive, adhesive-repellent coating however, does not extend to the actual one Dosing nozzle in the lower area of the annular metal tube is appropriate.
- the invention specified in claim 1 is based on the problem a nozzle for the dosed application of adhesive drops to create a substrate that is lighter from adhesive residue can be exempt and also an extension which enables cleaning intervals.
- the advantages achieved by the invention are, in particular, that the anti-adhesive coating of the nozzle is not or only slightly wetted by the adhesive and that, in addition to improved metering accuracy, it is also possible to achieve a considerable extension of the cleaning intervals.
- the good heat conduction of the metal facilitates the temperature stabilization of the adhesive passed through the nozzle with the aid of a cooling and / or heating device. It is to be regarded as surprising that with the small outlet-side inner diameters of the nozzles, which for example are 0.3 mm, 0.44 mm and 0.6 mm in an adhesive application station of an SMD production line, an anti-adhesive coating which achieves the desired effect on the Inner wall of a nozzle made of metal can be applied at all.
- polytetrafluoroethylene can only be exploited by applying it as a surface layer to a base layer made of nickel or a nickel alloy.
- a base layer enables the surface layer made of polytetrafluoroethylene to be adapted to the inner wall of the nozzle body, which is otherwise not or only difficult to coat.
- the design according to claim 5 enables permanent anti-adhesive coating, even after several cleaning processes is still fully effective.
- a layer thickness of the whole Coating of about 10 microns according to claim 6 has it was found to be optimal.
- Figure 1 shows a dosing nozzle labeled DD, which as exchangeable nozzle in the adhesive application station SMD production line is used.
- DD dosing nozzle labeled
- existing dosing nozzle DD has in the shown Embodiment an inner diameter in the entry area of 4.2 mm. At the outlet end of the dosing nozzle DD the inner diameter is 0.44 mm. These are around a medium-sized metering nozzle.
- the other two in the dosing nozzles used in the same adhesive application station have an inside diameter of 0.3 at the outlet end mm and 0.6 mm.
- the longitudinal section shown in Figure 2 through the exit area the dosing nozzle DD shows that the inner wall and the End face in the exit area with a coating B are provided. It is an anti-adhesive, adhesive-repellent coating B, which is shown in FIG those areas where it is shown to improve the function and to simplify the maintenance of the Dosing nozzles DD are required. In fact, the coating B all over the inside and outside of the dosing nozzle DD applied.
- a total coating B having a layer thickness of approximately 10 ⁇ m from an unrecognizable base layer and one anti-adhesive, adhesive-repellent surface layer.
- the Base layer consists of a chemically applied nickel-phosphorus alloy, while polytetrafluoroethylene as the surface layer is applied, which is usually briefly called PTFE referred to as.
Landscapes
- Coating Apparatus (AREA)
- Materials For Medical Uses (AREA)
Description
Die besonders guten antiadhäsiven Eigenschaften von Polytetrafluorethylen können dabei erst dadurch ausgenutzt werden, daß dieses als Oberflächenschicht auf eine Grundschicht aus Nickel oder einer Nickel-Legierung aufgebracht wird. Eine derartige Grundschicht ermöglicht eine Anpassung der Oberflächenschicht aus Polytetrafluorethylen an die sonst nicht oder nur schwer beschichtbare Innenwandung des aus Metall bestehenden Düsenkörpers.
Es zeigen
Claims (6)
- Düse zum dosierten Auftragen von Klebstofftropfen auf ein Substrat, insbesondere für die Klebstoffauftragsstation einer SMD-Fertigungslinie, miteinem aus Metall bestehenden Düsenkörper, und miteiner zumindest im Austrittsbereich auf die Innenwandung aufgebrachten antiadhäsiven, klebstoffabweisenden Beschichtung (B), wobeidie Beschichtung (B) eine Grundschicht aus Nickel oder einer Nickel-Legierung und eine Oberflächenschicht aus Polytetrafluorethylen umfaßt.
- Düse nach Anspruch 1,
dadurch gekennzeichnet,
daß sich die Beschichtung (B) auch über die Stirnfläche im Austrittbereich erstreckt. - Düse nach Anspruch 1 oder 2,
gekennzeichnet durch einen Düsenkörper
aus Aluminium oder einer Aluminium-Legierung. - Düse nach Anspruch 1 bis 3,
gekennzeichnet durch eine Grundschicht
aus einer chemisch aufgebrachten Nickel-Phosphor-Legierung. - Düse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Beschichtung (B) mit einer Schichtstärke von 5 bis 15 µm aufgbracht ist. - Düse nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Beschichtung (B) mit einer Schichtstärke von ca. 10 µm aufgebracht ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9405332U DE9405332U1 (de) | 1994-03-29 | 1994-03-29 | Düse zum dosierten Auftragen von Klebstofftropfen |
DE9405332U | 1994-03-29 | ||
PCT/DE1995/000387 WO1995026237A1 (de) | 1994-03-29 | 1995-03-22 | Düse zum dosierten auftragen von klebstofftropfen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0754095A1 EP0754095A1 (de) | 1997-01-22 |
EP0754095B1 true EP0754095B1 (de) | 1998-11-11 |
Family
ID=6906693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95913854A Expired - Lifetime EP0754095B1 (de) | 1994-03-29 | 1995-03-22 | Düse zum dosierten auftragen von klebstofftropfen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0754095B1 (de) |
DE (2) | DE9405332U1 (de) |
WO (1) | WO1995026237A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11165115A (ja) * | 1997-12-04 | 1999-06-22 | Fuji Photo Film Co Ltd | 光ディスク製造用スピンコート装置 |
JP5465168B2 (ja) * | 2010-12-27 | 2014-04-09 | 日本発條株式会社 | 粘性液体供給ノズルへの潤滑性メッキ層の形成方法及び粘性液体供給ノズル |
DE102020127868A1 (de) | 2020-10-22 | 2022-04-28 | Baumer Hhs Gmbh | Klebstoffauftragsvorrichtung mit verbesserter Düse |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1219843A (en) * | 1982-11-15 | 1987-03-31 | Robert A. Kidder | Adhesive dispenser |
DE3903897A1 (de) * | 1989-02-10 | 1990-08-16 | Continental Ag | Vorrichtung zum herstellen, ver- und/oder bearbeiten von kautschukmischungen |
SE465756B (sv) * | 1990-03-02 | 1991-10-28 | Qenico Ab | Anordning foer flaeckvis applicering av loedpasta, lim, e d, paa ett substrat |
-
1994
- 1994-03-29 DE DE9405332U patent/DE9405332U1/de not_active Expired - Lifetime
-
1995
- 1995-03-22 WO PCT/DE1995/000387 patent/WO1995026237A1/de active IP Right Grant
- 1995-03-22 DE DE59504226T patent/DE59504226D1/de not_active Expired - Fee Related
- 1995-03-22 EP EP95913854A patent/EP0754095B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59504226D1 (de) | 1998-12-17 |
DE9405332U1 (de) | 1994-07-28 |
WO1995026237A1 (de) | 1995-10-05 |
EP0754095A1 (de) | 1997-01-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0266843B1 (de) | Vorrichtung zum Aufbringen tropfenförmiger Lotmengen Weichlot auf zu benetzende Flächen | |
EP1214154B1 (de) | Verfahren und vorrichtung zum herstellen einer abziehbaren schutzschicht für oberflächen, insbesondere für lackierte oberflächen von kraftfahrzeugkarosserien | |
DE3227910A1 (de) | Vorrichtung zum schmelzen und zum abgeben von thermoplastischem material | |
EP0290869B1 (de) | Vorrichtung zum auswechselbaren Anschliessen | |
EP0282748B1 (de) | Vorrichtung zur dosierbaren Klebstoff-Applikation | |
DE4108489C2 (de) | Verfahren und Vorrichtung zum Aufbringen einer gleichförmigen Klebstoffschicht auf einen harzbeschichteten Dorn | |
EP0754095B1 (de) | Düse zum dosierten auftragen von klebstofftropfen | |
DE3729206A1 (de) | Verfahren zum ausbilden von tintenkanaelen in einem schreibkopf fuer eine tintenmosaikschreibeinrichtung | |
DE68902168T2 (de) | Vorrichtung und verfahren zum herstellen einer rotationssiebdruckschablone. | |
DE102009013379A1 (de) | Vorrichtung zum Beschichten eines Substrats | |
DE4012879C2 (de) | ||
DE2724888C3 (de) | Vorrichtung zur Reinigung von Tuscheschreiberspitzen | |
EP0082248A1 (de) | Vorrichtung zum Einspritzen eines plastischen Dichtmittels | |
DE8113028U1 (de) | Vorrichtung zur rueckgewinnung der vorbeigespritzten spruehmittelmenge in einer automatischen spritzanlage | |
DE10261576B4 (de) | Vorrichtung zum Beschichten einer Leiterplatte | |
DE10101056A1 (de) | Leitung | |
AT404686B (de) | Sprühnebelführungshülse | |
DE19909245B4 (de) | Einrichtung zum Aufbringen von viskosem Material auf eine zu beschichtende Fläche | |
DE102010047924A1 (de) | Verfahren und Vorrichtung zum Erzeugen einer Oberfläche einer aushärtenden Flüssigkeit | |
EP0888826B1 (de) | Vorrichtung zum Auftragen von Kleber auf Bahnmaterial | |
CH646458A5 (de) | Oberflaechenschutz an teilen einer heissverzinnungsanlage. | |
DE3542848A1 (de) | Beheizbare pumpe fuer zaehfluessige medien, insbesondere klebstoff | |
DE19607224A1 (de) | Schwenkbare Flachstrahl-Sprühdüse | |
DE2058180B2 (de) | Spritzpistole zum Auftragen flüssiger Schleif- oder Poliermittel | |
DE2107081C3 (de) | Vorrichtung zum Auftragen mikrodünner Streifenüberzüge auf die Oberfläche eines isolierenden Trägers mit einer auswechselbaren Auftragkammer für eine fließfähige, insbesondere zur Herstellung elektrischer Widerstände geeignete Kunststoffmasse |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19960917 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB IT LI NL |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19980113 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI NL |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: SIEMENS SCHWEIZ AG Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 59504226 Country of ref document: DE Date of ref document: 19981217 |
|
ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN P. & C. S.N.C. |
|
ET | Fr: translation filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19990119 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20050303 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20050316 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20050331 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20050519 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20050607 Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060322 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20060331 Year of fee payment: 12 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061003 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20060322 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20061001 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20061130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070322 |