EP0748657B1 - Auftragskopf zur dosierten Abgabe von strömenden Medien - Google Patents
Auftragskopf zur dosierten Abgabe von strömenden Medien Download PDFInfo
- Publication number
- EP0748657B1 EP0748657B1 EP96108311A EP96108311A EP0748657B1 EP 0748657 B1 EP0748657 B1 EP 0748657B1 EP 96108311 A EP96108311 A EP 96108311A EP 96108311 A EP96108311 A EP 96108311A EP 0748657 B1 EP0748657 B1 EP 0748657B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- rocker
- valve member
- applicator head
- applicator
- 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
- B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/877—With flow control means for branched passages
- Y10T137/87708—With common valve operator
- Y10T137/87748—Pivoted or rotary motion converted to reciprocating valve head motion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/877—With flow control means for branched passages
- Y10T137/87708—With common valve operator
- Y10T137/87772—With electrical actuation
Definitions
- the invention relates to an application head for metered delivery of flowing media, in particular Hot melt adhesive, cold glue, lubricants, paints or Like., With a housing in which a pivotable, on at least one valve member acting rocker available which is over two sides of one Piezo elements arranged in a rocker joint are driven becomes.
- Such an order head is already from the DE-GM 94 05 600.5 of the applicant known. He serves for example to apply hot glue to a made of cardboard, paper, textile, fleece or the like existing substrate. We do the web-shaped Substrate passed the fixed application head.
- the valve described there has the advantage that the piezoelectric valve actuator is present automatic temperature compensation from only two Piezo elements exist, being through the transmission the movement emanating from the two piezo elements the minor by means of a rocker construction Length increase of each individual piezo element in a relatively large valve lift is converted. Of another becomes a big one with this valve drive Valve force of approx. 3000 N provided, the time for an opening and closing cycle only 0.8 to 0.25 msec. is.
- the object of the invention is now to create a new order head, the one has greater throughput and order capacity as well as an even application of glue.
- the solution according to the invention has the basic one Advantage that the design of the valve drive the theoretical order performance as a double rocker is more than doubled, all at the same time Advantages of the aforementioned prior art also for the application head according to the invention be valid.
- the additional valve member serves not to control another order valve, but acts on a valve which is inside a closed circulation system equipped with a pump is arranged for the liquid medium.
- This preferred embodiment of the invention has particular advantages if within a Unit of time a larger number of individual substrates, e.g. Cardboard blanks to be coated. It is partly necessary that the gaps between the individual cardboard blanks or between areas coated with glue dots should be bridged.
- the application valve a certain Keep time closed, at the same time as when the order valve closes Hot glue circulation valve a pressure increase in the hot glue system prevented. Reaches the next one now coating area or the next box cut the position of the order valve can do this be opened again, at the same time the Hot melt circulation valve closes.
- the same pressure at the application valve and thus the hot melt flow rate is also essentially constant.
- rocker construction driving piezo elements with a Connected online power supply, which in essentially of an accumulator and an associated one Electronics exist, which in the event of a power failure the respective position of the order valve is determined and corrected the closed state.
- This invention offers particularly preferred embodiment at the same time an automatic leakage protection, as a result it is guaranteed that even in the event of a power failure Order valve is always in the fully closed state located.
- an application head is metered Total delivery of hot glue with the reference number Designated 10.
- the application head has a housing 11 Housing parts 12 and 13. Between Housing parts 12 and 13 is a thermal separation layer 14 available.
- a Double rocker valve drive 15 not illustrated electronic components and a electrical supply and control line 16 arranged.
- the double rocker 15 has two rocker arms 17 at the free ends of each a rod-shaped Valve member 18 is arranged, which by the thermal separation layer 14 into the Housing part 13 protrudes into a valve head 19.
- a heating device 20 In the housing part 13 there is also a heating device 20 and the common feed channel 21 arranged for hot glue.
- the feed channel 21 is each with hot glue channels 22 with the valve heads 19 connected. Ultimately, is below the hot glue channels 12 to recognize a temperature sensor T.
- valve head 19 While which contains a valve head 19 an order valve 23, the other valve head 19 serves as a closure valve 24 for a hot glue return line 25, the one Connection to a hot glue pump, not shown manufactures.
- This hot glue pump is again connected to the feed channel 21 so that a closed Hot glue system is in place.
- connecting parts 32 which are in turn glued to the piezo elements 30 each over a flexible, narrow material bridge (Joint 29) connected to the double rocker 15, wherein here, too, a narrow one on both sides of the material bridge Gap 31 is present.
- the piezo elements 30 are on both sides of a vertical, through the joint 27 running axis x each articulated at a distance d with the double rocker 15 connected. This results in connection with the resilient mounting of the piezo elements 30 automatic temperature compensation through the cover plate 33.
- Double rocker 15 times clockwise or counterclockwise Clockwise torque through which a rocker arm 17 and the each associated valve member 18 upwards and a rocker arm 17 is moved down.
- the Double rocker arrangement can in the embodiment alternately the application valve 23 and the closure valve 24 are opened, in which case the opposite each other valve is closed.
- valve electronics 34 which is essentially shown in Fig. 1 Housing part 12 is arranged.
- the one Block circuit diagram shown in Fig. 2 valve electronics 34 enables alternating on the one hand Voltage application to the two piezo elements 30 and on the other hand a special energy saving and thus also operation with low heat losses of the application head 10.
- the valve electronics 34 have an energy consumption so-called charge pump arrangement 35, which is basically shown in FIG. 2.
- the Charge pump arrangement 35 has an intermediate store 36 and several power field effect transistors 37, with the intermediate storage 36 as well as the power field effect transistors 37 each are connected to both piezo elements 30.
- the intermediate store 36 contains a coil 38 and a capacitor 39.
- the energy saving is at Operation of the piezo elements 30 by the so-called Push-pull arrangement of the piezo elements 30 usable Reloading principle achieved.
- this reloading principle means that each stored in a piezo element 30 Energy (charge) "in portions" in each other piezo element 30 is transformed. Basically this takes place within the charge pump arrangement 35 in that on the one hand the charge of a Piezo element 30 is temporarily stored in the buffer 36 and that on the other hand the power field effect transistors 37 step by step targeted switching of different networks stored energy on the other piezo element 30 transform.
- the timing of the Reloading processes and the respective switching status of the Power field effect transistors 37 is by a programmable controller 40 determines. On the programmable Controller 40, however, operates one more Control circuit 41, which constantly the target-actual value comparison the state of tension of the individual Piezo elements 30 queries.
- valve electronics 34 a clock generator 44 and a status display 45 on, however, arranged outside of the application head 10 are. While the clock generator 44 - like that Name says - the beat for the expiring electronic Processes, the status display is concerned 45 around an optical display for the operator.
- the valve electronics 34 also have one Temperature controller 46 on, the valve temperature on that specified on a setpoint potentiometer 47 Temperature regulates. This means that an above the heating cartridge 20 arranged, not shown Temperature sensor constantly measures the valve temperature. Only if this temperature with that on the setpoint potentiometer 47 existing temperature matches and thus the working temperature is reached, the valve released by programmable controller 40.
- valve electronics 34 ultimately with an online power supply 48 provided, which essentially consists of an accumulator and electronics that determined the respective state of the order valve and ensures complete closure.
Description
Claims (6)
- Auftragskopf zur dosierten Abgabe von strömenden Medien, insbesondere Schmelzkleber, Kaltleim, Schmierstoffe, Farben od. dgl., mit einem Gehäuse (11), in dem eine schwenkbare , auf mindestens ein Ventilglied (18) einwirkende Wippe (15) vorhanden ist, welche über zwei beidseitig eines Wippengelenks (27) angeordnete Piezoelemente (30) angetrieben wird, dadurch gekennzeichnet, daß die Wippe (15) beidseitig des Wippengelenks (27) jeweils wenigstens einen Wippenarm (17) aufweist, an welchem jeweils mindestens ein Ventilglied (18) angeordnet ist.
- Auftragskopf nach Anspruch 1, dadurch gekennzeichnet, daß die Ventile gegenläufig geöffnet und geschlossen werden.
- Auftragskopf nach Anspruch 1, dadurch gekennzeichnet, daß jedes Ventilglied (18) auf ein Auftragsventil (23) einwirkt.
- Auftragskopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Ventilglied (18) auf ein Auftragsventil (23) und ein Ventilglied (18) auf ein Ventil (24) einwirkt, welches innerhalb eines geschlossenen, mit einer Pumpe versehenen Umlaufsystems für das flüssige Medium angeordnet ist.
- Auftragskopf nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß beide Ventile (23, 24) einen gemeinsamen Zuführungskanal (21) für das Medium aufweisen.
- Auftragskopf nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Piezoelemente (30) mit einer Online-Stromversorgung (48) verbunden ist, welche im wesentlichen aus einem Akkumulator und einer dazugehörigen Elektronik besteht, welche bei Stromausfall die jeweilige Stellung des Auftragsventils (23) ermittelt und den Schließzustand korrigiert.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19521478A DE19521478C1 (de) | 1995-06-13 | 1995-06-13 | Auftragskopf zur dosierten Abgabe von strömenden Medien |
DE19521478 | 1995-06-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0748657A2 EP0748657A2 (de) | 1996-12-18 |
EP0748657A3 EP0748657A3 (de) | 1998-01-07 |
EP0748657B1 true EP0748657B1 (de) | 1999-08-11 |
Family
ID=7764265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96108311A Expired - Lifetime EP0748657B1 (de) | 1995-06-13 | 1996-05-24 | Auftragskopf zur dosierten Abgabe von strömenden Medien |
Country Status (3)
Country | Link |
---|---|
US (1) | US5730359A (de) |
EP (1) | EP0748657B1 (de) |
DE (2) | DE19521478C1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29713744U1 (de) * | 1997-08-01 | 1998-12-03 | Planatol Klebetechnik Gmbh | Leim- und/oder Befeuchtungseinrichtung |
US6315049B1 (en) * | 1998-10-07 | 2001-11-13 | Baker Hughes Incorporated | Multiple line hydraulic system flush valve and method of use |
US6157115A (en) * | 1998-10-13 | 2000-12-05 | Nordson Corporation | Mechanical amplifier |
DE19848358A1 (de) * | 1998-10-21 | 2000-04-27 | Edf Polymer Applikation Maschi | Ventileinrichtung |
FR2794210B1 (fr) * | 1999-05-28 | 2001-08-31 | Crouzet Automatismes | Dispositif de detection de la fermeture simultanee de deux organes mobiles et son application a un systeme coupe-feu a clapet |
DE19946839B4 (de) * | 1999-09-30 | 2006-07-27 | Robert Bosch Gmbh | Verstelleinrichtung zum Ansteuern einer Regel- und/oder Absperrvorrichtung |
US6321948B1 (en) | 2000-04-04 | 2001-11-27 | Rieke Corporation | Tap and valve assembly |
AU6700601A (en) * | 2000-06-19 | 2002-01-02 | Hygrama Ag | Intrinsically safe microprocessor controlled pressure regulator |
US6799702B1 (en) | 2000-11-22 | 2004-10-05 | Gopro, Inc. | Device for dispensing viscous liquids |
ATE421388T1 (de) * | 2002-09-13 | 2009-02-15 | Windmoeller & Hoelscher | Bodenlegevorrichtung für papiersäcke |
US7694855B2 (en) | 2004-04-23 | 2010-04-13 | Nordson Corporation | Dispenser having a pivoting actuator assembly |
ITMI20041472A1 (it) * | 2004-07-21 | 2004-10-21 | Fabrizio Nobili | Doccetta per docce in genere ed in particolare per docce manuali per lavelli e simili |
ITMI20051252A1 (it) * | 2005-07-01 | 2007-01-02 | Fabrizio Nobili | Gruppo per l'erogazione differenziabile di acqua trattata e di acqua di rete |
ITMI20060357A1 (it) * | 2006-02-28 | 2007-09-01 | Fabrizio Nobili | Doccetta per lavello con variazione del getto di erogazione e regolazione della portata |
EP1884693A1 (de) * | 2006-08-03 | 2008-02-06 | Fabrizio Nobili | Wasserhahn |
US20090107398A1 (en) * | 2007-10-31 | 2009-04-30 | Nordson Corporation | Fluid dispensers and methods for dispensing viscous fluids with improved edge definition |
DE102012109123A1 (de) | 2012-09-27 | 2014-03-27 | Vermes Microdispensing GmbH | Dosiersystem, Dosierverfahren und Herstellungsverfahren |
CN105312190B (zh) * | 2015-11-26 | 2018-05-25 | 河北鹏冠科技股份有限公司 | 一种流体点胶喷射阀组件 |
CN107303753B (zh) * | 2016-04-22 | 2020-11-24 | 北京派和智能装备技术有限公司 | 压电喷射打印头和具有该打印头的打印装置 |
CN106423747B (zh) * | 2016-08-30 | 2018-10-16 | 杭州特工包装机械有限公司 | 防锈涂膜装置 |
CN106269390B (zh) * | 2016-08-30 | 2018-10-16 | 杭州特工包装机械有限公司 | 加工异形钢用的刷油系统 |
US11433418B2 (en) * | 2017-04-21 | 2022-09-06 | Nordson Corporation | Dispensing system |
CN108160409A (zh) * | 2017-12-27 | 2018-06-15 | 苏州华控注胶技术有限公司 | 一种用于多种胶水混合的流道结构 |
CN112303290B (zh) * | 2019-07-31 | 2021-11-09 | 惠州市唐群座椅科技股份有限公司 | 集成式开关装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS586101B2 (ja) * | 1978-01-17 | 1983-02-03 | アイシン精機株式会社 | 電磁弁装置 |
DE3342951C2 (de) * | 1983-11-26 | 1986-12-18 | Daimler-Benz Ag, 7000 Stuttgart | Betätigungseinrichtung für zwei abhängig voneinander betätigbare Ventile |
DE3739048C2 (de) * | 1987-11-17 | 2001-08-09 | Buerkert Gmbh | Mehrwegeventil |
DE4220177A1 (de) * | 1992-06-19 | 1993-12-23 | Marco Systemanalyse Entw | Vorrichtung zur Betätigung eines Ventilelementes |
DE9405600U1 (de) * | 1994-04-02 | 1994-06-16 | Itw Dynatec Klebetechnik Holdi | Auftragskopf zur dosierten Abgabe von strömenden Medien |
-
1995
- 1995-06-13 DE DE19521478A patent/DE19521478C1/de not_active Expired - Fee Related
-
1996
- 1996-05-24 DE DE59602698T patent/DE59602698D1/de not_active Expired - Lifetime
- 1996-05-24 EP EP96108311A patent/EP0748657B1/de not_active Expired - Lifetime
- 1996-06-13 US US08/664,069 patent/US5730359A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0748657A2 (de) | 1996-12-18 |
DE59602698D1 (de) | 1999-09-16 |
US5730359A (en) | 1998-03-24 |
EP0748657A3 (de) | 1998-01-07 |
DE19521478C1 (de) | 1996-09-12 |
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