EP0928637A2 - Buse de distribution pour un extrudeur à filière - Google Patents

Buse de distribution pour un extrudeur à filière Download PDF

Info

Publication number
EP0928637A2
EP0928637A2 EP99810004A EP99810004A EP0928637A2 EP 0928637 A2 EP0928637 A2 EP 0928637A2 EP 99810004 A EP99810004 A EP 99810004A EP 99810004 A EP99810004 A EP 99810004A EP 0928637 A2 EP0928637 A2 EP 0928637A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
adhesive
nozzle plate
dispensing nozzle
feed channel
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
Application number
EP99810004A
Other languages
German (de)
English (en)
Other versions
EP0928637A3 (fr
EP0928637B1 (fr
Inventor
Luca Baraldi
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.)
Besi Switzerland AG
Original Assignee
Esec AG
Oerlikon Assembly Equipment AG
Esec Management SA
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
Priority claimed from EP98100386A external-priority patent/EP0928634A1/fr
Application filed by Esec AG, Oerlikon Assembly Equipment AG, Esec Management SA filed Critical Esec AG
Priority to EP19990810004 priority Critical patent/EP0928637B1/fr
Publication of EP0928637A2 publication Critical patent/EP0928637A2/fr
Publication of EP0928637A3 publication Critical patent/EP0928637A3/fr
Application granted granted Critical
Publication of EP0928637B1 publication Critical patent/EP0928637B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05C5/027—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

Definitions

  • the invention relates to a device for a die bonder for dosing and applying a predetermined amount a viscous adhesive, with a dispensing nozzle, which has a feed channel surrounded by a wall surface, through which the adhesive can be directed to a nozzle plate, in which there is at least one outlet opening, wherein the feed channel into the at least one outlet opening opens and a cross-sectional area of the Feed channel is larger than a cross-sectional area of the at least one exit opening.
  • the Invention a specific use of the device.
  • the viscous Die Bonding adhesive is this from a storage container in a more or less cylindrical receiving area of a so-called Dispensing nozzle promoted. Is on a discharge side of the nozzle at least one outlet opening through which the Adhesive is dispensed in doses. It is often too provided that several, in a certain pattern arranged outlet openings are present, so that a predetermined adhesive pattern can be applied. Around dosing a certain amount of the adhesive is on the adhesive, for example in the storage container certain pressure pulse applied. Since between the required size and duration of the pressure pulse and the Viscosity of the liquid, the cross-sectional area of the Outlet opening and other parameters a dependency exists, the required pressure pulse can essentially be predetermined.
  • the Publication “Dispensing Technology, The Key to High-quality / High Speed Die Bonding, ESEC Process Information" referenced, the content of which is hereby incorporated by reference becomes.
  • the invention is therefore based on the object To further develop the dispensing nozzle so that the dripping behavior of the nozzles and the predeterminability of the parameters of the required pressure pulses can be improved.
  • the nozzle plate can be designed differently be. However, it has proven to be useful if the Forced guidance one in the feed channel opposite the Has nozzle plate arranged baffle. Under “chicane” is to be understood as a flow guiding element with which the for cross-sectional area usable for the flow of the adhesive of the feed channel is reduced. With the chicane it can Adhesive in the positive guidance at least in sections get a flow direction that of that Direction of flow deviates, which the adhesive in the would have forced control without bullying.
  • the liquid front due to the forced operation first meets the nozzle plate in the areas that the greatest distance to a longitudinal axis of the nozzle plate exhibit.
  • the forced control then leads this Adhesive on a central longitudinal axis or the center of the Nozzle plate too. This makes it possible for the Impact of the adhesive on the nozzle plate in total Feed channel still existing air through the adhesive enclose and to at least one of the outlet openings to lead.
  • the adhesive can thereby Get flow direction, the one component orthogonal to the longitudinal axis of the nozzle plate.
  • FIG. 1 shows a section of a die bonder 1 the dispensing nozzles according to the invention can be used.
  • the dispensing nozzle 2 "shown on the die bonder it is a known nozzle with a single nozzle Outlet opening.
  • a Storage container 3 introduced an adhesive. One of them required pressure is indicated by a time and in its Amplitude of predetermined compressed air blast in the reservoir 3 exerted on the adhesive. The one needed for this Air volume is supplied via a line 4.
  • a dispensing nozzle 2 ' shown in more detail in FIG. 2 explained in the from a not shown Storage container an adhesive 5 'is inserted.
  • the Dispensing nozzle has a circular cross section and itself feed channel 7 'widening towards a nozzle plate 6', which by a substantially conical wall surface 8 ' Insert 9 'of the dispensing nozzle 2' is formed.
  • the nozzle plate 6 ' are within a circular area introduced a total of seventeen outlet openings 10 'of which can be seen in the illustration of FIG. 2 seven. There is one in each of the outlet openings 10 ' Dispensing tube 11 'arranged.
  • the front 12 ' of the adhesive already on the center of the nozzle plate 6 ', i.e. to the one provided with outlet openings 10 ' Circular area of the nozzle plate 6 'struck.
  • the front has 12 ' already between the outlet openings 10 'and Wall surface 8 'air 15' included.
  • This air 15 ' can no longer flow on the front 12' escape and remains in the area between that of the Nozzle plate 6 'and the wall surface 8' formed edge 16 ' and the outlet openings 10 'included.
  • these air pockets are all the more be larger than the distance of the outlet openings 10 'to Edge 16 'increases.
  • a device according to the invention is in a essentially cylindrical housing 17 of a dispensing nozzle 2 an insert 9 is arranged in which a feed channel 7 is trained. Is located above the feed channel 7 a storage container filled with an adhesive 5 3. In this is a pressure piston 18 is arranged by a Control not shown and by a corresponding mechanism of Die Bonders 1 is operated. This makes it possible to use the piston 18 within one to execute a certain stroke at a certain time, whereby a predetermined amount of the adhesive 5 in the direction of the Dispensing nozzle 2 can be promoted.
  • the Feed channel 7 of the dispensing nozzle 2 essentially has circular cross section.
  • a plurality of outlet openings 10 are introduced, which in arranged in an approximately symmetrical pattern to each other are (see also Fig. 5).
  • the outlet openings 10 there is a cylindrical dispensing tube 11.
  • FIGS. 4 and 5 illustrate that the Feed channel 7 immediately in front of the outlet openings 10 Cross-sectional area that is much larger than one Cross-sectional area of one outlet opening each.
  • a chicane 21 is arranged in the feed channel 7 is along the longitudinal and Axis of symmetry 20 .
  • the chicane 21 in the essentially than arranged concentrically in the feed channel 7 Cone formed, which is towards the nozzle plate 6 broadened.
  • the chicane with three struts 22 on the nozzle plate 6 attached As can be seen in particular in FIG the chicane with three struts 22 on the nozzle plate 6 attached.
  • the dispensing nozzle 2 has an essentially annular shape closed first section 23, which is characterized by the distance between the wall surfaces 8 of the feed channel 7 and the outer surface of the chicane 21 results.
  • a second Section 24 of the positive guidance results from the distance the nozzle plate 6 to the base 25 of the chicane 21.
  • the illustrated embodiment is a width B of first and second sections 23, 24 of the positive guidance essentially constant and of equal size.
  • the positive control should be designed so that the annular front 12 directly above, but at least in Area of one of the outlet openings 10 closes. in the The present exemplary embodiment closes the front above the outlet opening 10a, which runs along the longitudinal axis 20 the nozzle 2 runs. In this regard, below “Close” to understand that both a top of the Nozzle plate 6 and the base 25 essentially are completely wetted. Once the adhesive is in all dispensing tube 11 is the Die Bonder ready for use.
  • Fig. 6 further possible variant according to the invention is shown.
  • the exemplary embodiment consists of the chicane 21 is in the form of a disc. Because here all outlet openings 10 outside the center of the Nozzle plate 6 are located, has the positive guidance in the Baffle 21 along the longitudinal axis 20 also one additional central third section 26. This is formed in the form of a continuous recess, by the adhesive also reaches the nozzle plate. Consequently two are formed when this dispensing nozzle is filled Flow fronts 12 out once the adhesive on the Chicane 21 hits.
  • One flow front also passes through here existing first section 23 between the wall surface 8 of the feed channel and the chicane 21 in the second Section 24, in which they are closed towards the ring flows to the center of the nozzle plate 6.
  • the second Flow front arrives through the third section 26 the nozzle plate 6 and then flows in the second section 24 radially outward from the center of the nozzle plate opposite flow front.
  • the housing 17 consists of an upper one Housing part 17a and the nozzle plate 6.
  • the housing part 17a includes the shape-determining function of the insert 9.
  • the housing part 17a has four recesses 30 into which Engage cams 31 of the chicane 21. So the location of the Baffle 21 with respect to the housing part 17a and thus also the Width of the positive guidance clearly defined in section 23.
  • a sealing ring 32 is a concave surface corresponding to radius 14 (FIG. 4) 33 provided.
  • the sealing ring 32 is made, for example Rubber.
  • a locking piece 34 with a bayonet lock provided so that, after inserting the chicane 21, the Sealing ring 32 and the nozzle plate 6 in the housing part 17a, the closure piece 34 by means of a rotation on Housing part 17a can be attached. So that the width of the Forced operation is also clearly defined in section 24, has the chicane 21 four pins 35 against which the Presses nozzle plate 6 in the assembled state.

Landscapes

  • Coating Apparatus (AREA)
  • Die Bonding (AREA)
EP19990810004 1998-01-12 1999-01-06 Buse de distribution pour un extrudeur à filière Expired - Lifetime EP0928637B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19990810004 EP0928637B1 (fr) 1998-01-12 1999-01-06 Buse de distribution pour un extrudeur à filière

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP98100386A EP0928634A1 (fr) 1998-01-12 1998-01-12 Buse de distribution pour un extrudeur à filière
EP98100386 1998-01-12
EP19990810004 EP0928637B1 (fr) 1998-01-12 1999-01-06 Buse de distribution pour un extrudeur à filière

Publications (3)

Publication Number Publication Date
EP0928637A2 true EP0928637A2 (fr) 1999-07-14
EP0928637A3 EP0928637A3 (fr) 2005-01-26
EP0928637B1 EP0928637B1 (fr) 2008-11-05

Family

ID=26148972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990810004 Expired - Lifetime EP0928637B1 (fr) 1998-01-12 1999-01-06 Buse de distribution pour un extrudeur à filière

Country Status (1)

Country Link
EP (1) EP0928637B1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1258792A1 (fr) 2001-05-16 2002-11-20 Esec Trading S.A. Régulateur de pression
EP1258716A1 (fr) 2001-05-16 2002-11-20 Esec Trading S.A. Capteur de pression
US6581436B2 (en) 2001-05-16 2003-06-24 Esec Trading Sa Pressure sensor with means for re-calibration
US6681797B2 (en) 2001-05-16 2004-01-27 Esec Trading Sa Pressure transducer
DE102005029130A1 (de) * 2004-06-30 2006-01-26 Unaxis International Trading Ltd. Vorrichtung und Verfahren zum Auftragen von Klebstoff auf ein Substrat
DE102013002413A1 (de) * 2013-02-11 2014-08-14 Dürr Systems GmbH Lochplatte für ein Applikationsgerät und entsprechendes Applikations- und Herstellungsverfahren
EP2888057A4 (fr) * 2012-08-24 2016-07-13 Adco Products Inc Appareil de distribution d'adhésif de toiture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010262A1 (de) * 1990-03-30 1991-10-02 Debatin Anton Gmbh Duese fuer viskose fluessigkeit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"dispensing technology, the key to high-quality / high speed die bonding, esec process information"

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1258792A1 (fr) 2001-05-16 2002-11-20 Esec Trading S.A. Régulateur de pression
EP1258716A1 (fr) 2001-05-16 2002-11-20 Esec Trading S.A. Capteur de pression
US6581436B2 (en) 2001-05-16 2003-06-24 Esec Trading Sa Pressure sensor with means for re-calibration
US6681797B2 (en) 2001-05-16 2004-01-27 Esec Trading Sa Pressure transducer
DE102005029130A1 (de) * 2004-06-30 2006-01-26 Unaxis International Trading Ltd. Vorrichtung und Verfahren zum Auftragen von Klebstoff auf ein Substrat
DE102005029130B4 (de) * 2004-06-30 2015-02-19 Unaxis International Trading Ltd. Vorrichtung und Verfahren zum Auftragen von Klebstoff auf ein Substrat
EP2888057A4 (fr) * 2012-08-24 2016-07-13 Adco Products Inc Appareil de distribution d'adhésif de toiture
DE102013002413A1 (de) * 2013-02-11 2014-08-14 Dürr Systems GmbH Lochplatte für ein Applikationsgerät und entsprechendes Applikations- und Herstellungsverfahren
WO2014121926A1 (fr) * 2013-02-11 2014-08-14 Dürr Systems GmbH Plaque à trous pour un appareil d'application ainsi que procédé d'application et de fabrication correspondant
US9643194B2 (en) 2013-02-11 2017-05-09 Durr Systems Gmbh Perforated plate for an application device and corresponding method
US10232400B2 (en) 2013-02-11 2019-03-19 Durr Systems Gmbh Perforated plate for an application device and corresponding method

Also Published As

Publication number Publication date
EP0928637A3 (fr) 2005-01-26
EP0928637B1 (fr) 2008-11-05

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