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EP2353731A1 - Buse d'application électrique destinée à déposer un produit fluide et dispositif doté d'une telle buse d'application électrique - Google Patents

Buse d'application électrique destinée à déposer un produit fluide et dispositif doté d'une telle buse d'application électrique Download PDF

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Publication number
EP2353731A1
EP2353731A1 EP10151806A EP10151806A EP2353731A1 EP 2353731 A1 EP2353731 A1 EP 2353731A1 EP 10151806 A EP10151806 A EP 10151806A EP 10151806 A EP10151806 A EP 10151806A EP 2353731 A1 EP2353731 A1 EP 2353731A1
Authority
EP
European Patent Office
Prior art keywords
membrane
drive
applicator head
applicator
lever arm
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Withdrawn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
EP10151806A
Other languages
German (de)
English (en)
Inventor
Hanspeter Felix
Roman Kappeler
Heinz Müller
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.)
Robatech AG
Original Assignee
Robatech AG
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 Robatech AG filed Critical Robatech AG
Priority to EP10151806A priority Critical patent/EP2353731A1/fr
Priority to US13/575,397 priority patent/US20130026197A1/en
Priority to ES11700695.7T priority patent/ES2553142T3/es
Priority to CN201180016182.6A priority patent/CN102821870B/zh
Priority to DE202011000179U priority patent/DE202011000179U1/de
Priority to BR112012018895A priority patent/BR112012018895A2/pt
Priority to EP11700852A priority patent/EP2528696A1/fr
Priority to PCT/EP2011/050991 priority patent/WO2011092163A1/fr
Priority to EP11700695.7A priority patent/EP2528695B1/fr
Priority to PCT/EP2011/050993 priority patent/WO2011092164A1/fr
Priority to BR112012018890A priority patent/BR112012018890A2/pt
Priority to CN2011800162585A priority patent/CN102883821A/zh
Priority to US13/575,414 priority patent/US20130026198A1/en
Priority to US13/981,854 priority patent/US9296008B2/en
Publication of EP2353731A1 publication Critical patent/EP2353731A1/fr
Priority to HK13106110.7A priority patent/HK1179207A1/zh
Priority to US14/339,831 priority patent/US20140332569A1/en
Withdrawn 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
    • B05C5/0225—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
    • 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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • 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
    • 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
    • B05C5/0237—Fluid actuated valves

Definitions

  • the invention relates to an applicator head for dispensing a flowable medium and an applicator device with at least one such applicator head.
  • it concerns the dispensing of adhesives and the use of hot glue.
  • the corresponding application heads must be robust and allow a precise, highly accurate delivery of the medium.
  • the application heads should be able to be switched quickly in order to be able to portion portions of adhesive or to apply spot or line precision.
  • the guns should not be too large, since there is often limited space available in the respective applicators.
  • the object is achieved by an applicator head according to claim 1 and by an applicator device according to claim 5.
  • a first application head is specially designed for dispensing a flowable medium. It comprises a nozzle chamber in the interior of the application head and a nozzle needle which is movably mounted in the interior of the nozzle chamber. The nozzle needle performs an opening movement and releases an outlet opening for a short time.
  • There is a supply channel which is connected to the nozzle chamber and fluidly connectable to a supply line. Through the supply line and the supply channel, the flowable medium can be introduced into the nozzle chamber.
  • a drive generates the opening movement of the nozzle needle.
  • the applicator head comprises a membrane suspension with a membrane.
  • the lever arm extends through the membrane suspension membrane which serves to movably connect the lever arm to the applicator head.
  • the membrane suspension serves as a seal to prevent leakage of the flowable medium from the nozzle chamber.
  • the membrane may comprise at least one sealing ring, which serves as a seal and for elastic clamping of the membrane in the applicator head.
  • This embodiment provides an improved seal, for example against leaking adhesive.
  • an embodiment in which it is a metallic membrane that can perform particularly fast back and forth movements and thus allows a quick opening and closing of the outlet opening.
  • a metallic membrane is particularly suitable for high frequency alternating load, i. for embodiments in which a very fast opening and closing is required.
  • the invention is particularly suitable for thermoplastic (hotmelt) adhesives.
  • FIG. 1 For example, an applicator 100 having a plurality of applicator heads 15, nozzle outlets 12, and individually switchable adhesive supply lines 16 is shown.
  • Each of the exit openings 12 is formed on or in a respective application head 15.
  • Each applicator head 15 is designed especially for dispensing a flowable medium M, preferably of adhesive, and comprises a nozzle chamber 10 in the interior of the applicator head 15.
  • a nozzle needle 11 is mounted in the interior of the nozzle chamber 10 movable up and down, wherein they by an opening movement P of Nozzle needle 11, the outlet opening 12 releases.
  • an arrow P is shown pointing upwards.
  • An opening movement in the direction of the arrow raises the nozzle needle 11 and this releases the outlet openings 12, so that the medium M can escape from the nozzle chamber 10 through the outlet openings 12.
  • four application heads 15 simultaneously permanently emit a medium M in strip-like tracks (caterpillars).
  • the strip shape arises due to the passing of, for example, a paper web K.
  • the corresponding direction of movement is marked V.
  • a supply channel 13 is provided, which is connected to the nozzle chamber 10.
  • the supply channel 13 can be fluidically connected to a supply line 16 in order to be able to introduce the flowable medium M into the nozzle chamber 10.
  • a supply line 16 In Fig. 1 four separate supply lines 16 are indicated. But it can also be a common Supply line 16 for a plurality of application heads 15 are used.
  • a drive 20 for generating the opening movement P of the nozzle needle 11 is provided.
  • the drive 20 is attached to the applicator heads 15 or flanged.
  • the drive 20 includes its own drive 20 per applicator head 15, so that each outlet opening 12 can be opened and closed individually (ie independently of the others).
  • Fig. 2 a section through a single applicator head 15 is shown, in which the drive 20 spaced (ie, spatially separated) is arranged.
  • the application head 15 according to the invention comprises per drive 20 a lever arm 30, the first extreme end 31 is movably attached to a rear end 14 of the nozzle needle 11 and the second extreme end 32 is connected to the drive 20.
  • a membrane suspension 33 with a membrane 34 is used, with the lever arm 30 extending through the membrane 34 of the membrane suspension 33.
  • the membrane suspension 33 serves to connect the lever arm 30 movably with the applicator head 15.
  • the membrane suspension 33 serves as a seal to prevent leakage of the flowable medium M from the nozzle chamber 10. That is, the membrane 34, respectively the membrane suspension 33 has a dual function.
  • the nozzle chamber 10 is designed so that in its lower region near the outlet opening 12, a stop point 17, respectively, a stop surface for the tip 18 of the nozzle needle 11 is provided.
  • a stop surface for the tip 18 of the nozzle needle 11 is provided in Fig. 2 .
  • the nozzle needle 11 is shown in the closed position, ie the tip 18 of the nozzle needle 11 is seated close to the attachment point 17 and it can no medium M escape through the outlet opening 12.
  • the outlet opening 12 is released and medium M can emerge.
  • the nozzle needle 11 is movable in the region of the rear end 14 connected to the lever arm 30.
  • the nozzle needle 11 "dangles" quasi in the nozzle chamber 10. Because the nozzle chamber 10 in the lower region (near the attachment point 17) is conically rotationally symmetrical, the nozzle needle 11 is guided centered in a downward movement.
  • the medium M which flows from the supply channel 13 through the nozzle chamber 11 in the direction of the outlet opening 12, contributes to a stabilization or self-centering of the nozzle needle 11.
  • the lever arm 30 is here designed so that it comprises a flat, rectangular or strip-shaped rod, which is provided here with holes 39. These holes 39 serve to make the rod lighter in order to reduce the mass to be accelerated. In addition, the holes 39 allow the starting point A of the drive 20 to be displaced. Thus, if the effective lever arm is to be extended, the drive 20 (or the starting point A) can be moved further in the direction of the second extreme end 32 and vice versa. In the example shown, the drive 20 sits almost at the extreme end 32, i. the effective lever arm is relatively large. The closer the drive 20 (or the starting point A) in the direction of the diaphragm suspension 33 is displaced, the shorter the effective lever arm.
  • a cylindrical rod 40 is provided on the lever arm 30 in the embodiment shown.
  • This cylindrical rod 40 clamps or clamps the diaphragm 34 and thus provides a suspension of the lever arm 30 on the diaphragm 34. Details of an exemplary arrangement are the Fig. 4 refer to.
  • the diaphragm 34 may include one or two seal rings 35 which allow the diaphragm 34 to be resiliently clamped in the applicator head 15.
  • the applicator head 15 may comprise a removable part or lid (not shown in detail). If this part or this cover is removed, the membrane 34 can be inserted together with the sealing rings 35. Then the said part or lid is re-attached and the membrane 34 is clamped.
  • an optional pressure support 38 which serves as a mechanical stop for the diaphragm 34, is provided at the rear of the diaphragm 34, ie on the side which faces away from the nozzle chamber 10.
  • an overstretching of the diaphragm 34 is prevented at an overpressure in the nozzle chamber 10.
  • the diaphragm 34 is preferably designed and arranged so that it is stressed only on bending, which increases the service life.
  • a metallic diaphragm 34 is used, which is particularly suitable for high-frequency alternating load.
  • Fig. 3A Details of an embodiment of a membrane 34 are shown.
  • the membrane 34 includes slots 36 to increase the elasticity.
  • a central opening 37 is provided through which the lever arm 30 extends in the assembled state.
  • the location of the sealing ring (s) 35 is in Fig. 3A indicated.
  • Fig. 3B are details of one embodiment of a Membrane suspension 33 shown.
  • the attachment of the lever arm 30 can be seen on the diaphragm 34.
  • This attachment is made by the rod 40 as described.
  • the rod 40 is hollow inside to reduce the weight. So that no medium M can escape through the interior of the rod 40, the rod 40 can have caps 43 or sealing elements at both ends, for example.
  • the position of the virtual pivot axis VA is also in Fig. 3B indicated. In the Fig. 3B Details shown apply to all embodiments.
  • Fig. 5 shows details of another embodiment of the invention. The arrangement of the elements is different here, but the function is the same. A linear movement of the drive 20 is translated into an opening movement of the nozzle needle 11 in the interior of the application head 15.
  • an electro-magnetic drive 20 which is constructed according to the principle of a voice coil motor or a Lorentz coil.
  • As an effective translation is especially a 1: 1 1 translation.
  • a voice coil motor or a Lorentz coil can be used in all embodiments.
  • the stroke in the region of the nozzle tip 18 is preferably between 0.1 mm and 1 mm. With a 1: 1 ratio, the drive 20 must therefore make a correspondingly opposite movement P1 with a stroke of 0.1 mm to 1 mm.
  • a driver module 21 which may be arranged in the vicinity of the drive 20, as in Fig. 5 indicated by way of example, the movement behavior of the nozzle needle 11 can be adjusted or even regulated. If desired, a suitable movement profile can be deposited, so that the nozzle needle 11 is decelerated just before it hits the attachment point 17. This measure increases the service life of the nozzle needle 11 and of the application head 15.
  • a corresponding driver module 21 can be used in all embodiments.
  • an intelligent driver e.g., in the form of the driver module 21
  • the drive 20 is designed to monitor the current being fed to the driver 20. If the current increases, then this is an indication that the nozzle needle 11 is present at the stop point 17.
  • a creeping adaptation of the motion profile stored in the driver module 21 can be undertaken, which compensates for a wear of the needle tip 18 by successively increasing the movement P1 on the drive side if the current signal indicates that the current increase occurs later than in the past , The later occurrence of a current increase means namely that the needle tip 18 is present later than at the stop point 17. This is a sign of wear.
  • the use of such an intelligent drive increases the service life of the application head 15, since the nozzle needle 11 has to be replaced later.
  • a intelligent control eg in the form of the driver module 21
  • the drive 20 designed so that the movement of the nozzle needle 11 is regulated according to a predetermined movement profile.
  • the switching times and the stroke of the nozzle needle 11 can be monitored and the application image of the application head 15 can be automatically corrected by this control.
  • the driver module 21 is located directly on each drive 20 so that the drive 20 can be controlled directly with a 24 VDC signal (also directly from a PLC). This has the advantage that each application head 15 can be controlled individually.
  • a corresponding driver module 21 can be used in all embodiments.
  • an intelligent control of the drive 20 is designed on the drive side so that error, warnings, service or maintenance displays are issued. This approach can be used in all embodiments.

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  • Coating Apparatus (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP10151806A 2010-01-27 2010-01-27 Buse d'application électrique destinée à déposer un produit fluide et dispositif doté d'une telle buse d'application électrique Withdrawn EP2353731A1 (fr)

Priority Applications (16)

Application Number Priority Date Filing Date Title
EP10151806A EP2353731A1 (fr) 2010-01-27 2010-01-27 Buse d'application électrique destinée à déposer un produit fluide et dispositif doté d'une telle buse d'application électrique
PCT/EP2011/050991 WO2011092163A1 (fr) 2010-01-27 2011-01-25 Tête d'application pour distribuer un fluide et dispositif d'application pour distribuer un fluide
BR112012018890A BR112012018890A2 (pt) 2010-01-27 2011-01-25 cabeçote e dispositivo de aplicação para dispensar um meio de escoamento livre
CN201180016182.6A CN102821870B (zh) 2010-01-27 2011-01-25 用于涂敷可自由流动介质的电涂敷喷头以及涂敷可自由流动介质的涂敷设备
DE202011000179U DE202011000179U1 (de) 2010-01-27 2011-01-25 Membranaufhängung zur Verwendung in einem Klebstoff-Auftragskopf und Klebstoff-Auftragskopf mit Membranaufhängung
BR112012018895A BR112012018895A2 (pt) 2010-01-27 2011-01-25 cabeçote e dispositivo de aplicação para dispensar um meio de escoamento livre
EP11700852A EP2528696A1 (fr) 2010-01-27 2011-01-25 Tête d'application électrique pour distribuer un fluide et dispositif comportant une telle tête d'application électrique
US13/575,397 US20130026197A1 (en) 2010-01-27 2011-01-25 Application head for dispensing a free-flowing medium and application device for dispensing a free-flowing medium
EP11700695.7A EP2528695B1 (fr) 2010-01-27 2011-01-25 Buse d'application destinée à déposer un produit fluide et dispositif destiné à déposer un produit fluide
PCT/EP2011/050993 WO2011092164A1 (fr) 2010-01-27 2011-01-25 Tête d'application électrique pour distribuer un fluide et dispositif comportant une telle tête d'application électrique
ES11700695.7T ES2553142T3 (es) 2010-01-27 2011-01-25 Cabezal de aplicación para dispensar un medio fluido y dispositivo para dispensar un medio fluido
CN2011800162585A CN102883821A (zh) 2010-01-27 2011-01-25 用于涂敷可自由流动介质的电涂敷喷头以及包含电涂敷喷头的涂敷设备
US13/575,414 US20130026198A1 (en) 2010-01-27 2011-01-25 Electric application head for dispensing a free-flowing medium, and device comprising such an electric application head
US13/981,854 US9296008B2 (en) 2010-01-27 2011-06-07 Lever arm suspension for use in an adhesive application head and adhesive application head with lever arm suspension
HK13106110.7A HK1179207A1 (zh) 2010-01-27 2013-05-23 用於塗敷可自由流動介質的電塗敷噴頭以及塗敷可自由流動介質的塗敷設備
US14/339,831 US20140332569A1 (en) 2010-01-27 2014-07-24 Electric application head for dispensing a free-flowing medium, and device comprising such an electric application head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10151806A EP2353731A1 (fr) 2010-01-27 2010-01-27 Buse d'application électrique destinée à déposer un produit fluide et dispositif doté d'une telle buse d'application électrique

Publications (1)

Publication Number Publication Date
EP2353731A1 true EP2353731A1 (fr) 2011-08-10

Family

ID=42078945

Family Applications (3)

Application Number Title Priority Date Filing Date
EP10151806A Withdrawn EP2353731A1 (fr) 2010-01-27 2010-01-27 Buse d'application électrique destinée à déposer un produit fluide et dispositif doté d'une telle buse d'application électrique
EP11700852A Withdrawn EP2528696A1 (fr) 2010-01-27 2011-01-25 Tête d'application électrique pour distribuer un fluide et dispositif comportant une telle tête d'application électrique
EP11700695.7A Active EP2528695B1 (fr) 2010-01-27 2011-01-25 Buse d'application destinée à déposer un produit fluide et dispositif destiné à déposer un produit fluide

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP11700852A Withdrawn EP2528696A1 (fr) 2010-01-27 2011-01-25 Tête d'application électrique pour distribuer un fluide et dispositif comportant une telle tête d'application électrique
EP11700695.7A Active EP2528695B1 (fr) 2010-01-27 2011-01-25 Buse d'application destinée à déposer un produit fluide et dispositif destiné à déposer un produit fluide

Country Status (8)

Country Link
US (4) US20130026197A1 (fr)
EP (3) EP2353731A1 (fr)
CN (2) CN102821870B (fr)
BR (2) BR112012018890A2 (fr)
DE (1) DE202011000179U1 (fr)
ES (1) ES2553142T3 (fr)
HK (1) HK1179207A1 (fr)
WO (2) WO2011092164A1 (fr)

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ES2764998T3 (es) 2009-09-21 2020-06-05 Nordson Corp Válvula dispensadora de líquido accionada neumáticamente
ES2571240T3 (es) * 2011-01-25 2016-05-24 Robatech Ag Suspensión de brazo de palanca para una cabeza de aplicación
US9120115B2 (en) 2012-10-25 2015-09-01 Nordson Corporation Dispensing systems and methods for monitoring actuation signals for diagnostics
US9314970B2 (en) * 2013-02-27 2016-04-19 CEL Technology Limited Fluid-dispensing head for a 3D printer
KR101614312B1 (ko) * 2014-11-18 2016-04-22 주식회사 프로텍 압전 디스펜서 및 압전 디스펜서의 작동 스트로크 보정방법
CN107635675B (zh) 2015-05-22 2023-06-13 诺信公司 具有放大机构的压电喷射系统和方法
CN113510049B (zh) * 2016-01-16 2023-07-14 武藏工业株式会社 液体材料吐出装置
US10798783B2 (en) * 2017-02-15 2020-10-06 Continuous Composites Inc. Additively manufactured composite heater
CN108745785B (zh) * 2018-07-25 2023-08-15 江苏一控真空注胶技术有限公司 一种模块式注胶头阀岛
CN109158261B (zh) * 2018-09-20 2024-01-09 旷泰科技(上海)有限公司 一种可调间距的点胶机构
JP7532384B2 (ja) * 2019-01-21 2024-08-13 ノードソン コーポレーション ディスペンサ制御のためのシステム及び方法
CN109909116B (zh) * 2019-04-10 2020-08-11 中南大学 模块式压电驱动精密喷射阀
CN112517336B (zh) * 2019-09-19 2023-07-21 深圳鼎晶科技有限公司 推拉式多针点胶阀及其点胶方法
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CN113714045A (zh) * 2021-10-11 2021-11-30 湖南贝尔动漫科技有限公司 玩具生产过程中多个胶点同步施胶的点胶机
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WO2011092163A1 (fr) 2011-08-04
BR112012018890A2 (pt) 2016-04-12
EP2528696A1 (fr) 2012-12-05
WO2011092164A1 (fr) 2011-08-04
CN102821870B (zh) 2016-05-04
DE202011000179U1 (de) 2011-06-09
US20140054331A1 (en) 2014-02-27
EP2528695B1 (fr) 2015-08-26
CN102821870A (zh) 2012-12-12
US20130026197A1 (en) 2013-01-31
CN102883821A (zh) 2013-01-16
US20140332569A1 (en) 2014-11-13
EP2528695A1 (fr) 2012-12-05
BR112012018895A2 (pt) 2016-04-12
HK1179207A1 (zh) 2013-09-27
US9296008B2 (en) 2016-03-29
US20130026198A1 (en) 2013-01-31
ES2553142T3 (es) 2015-12-04

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