EP0853502B1 - Method and device for metering viscous material - Google Patents
Method and device for metering viscous material Download PDFInfo
- Publication number
- EP0853502B1 EP0853502B1 EP96933417A EP96933417A EP0853502B1 EP 0853502 B1 EP0853502 B1 EP 0853502B1 EP 96933417 A EP96933417 A EP 96933417A EP 96933417 A EP96933417 A EP 96933417A EP 0853502 B1 EP0853502 B1 EP 0853502B1
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- EP
- European Patent Office
- Prior art keywords
- valve
- proportional
- proportioning
- temperature
- metering
- 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.)
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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
- 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
- B05C11/1047—Apparatus or installations for supplying liquid or other fluent material comprising a buffer container or an accumulator between the supply source and the applicator
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- 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
Definitions
- the invention relates to a method according to the preamble of claim 1 and on a device according to the preamble of claim 6.
- This application can be done by hand as well as by program-controlled Handling machines, as described for example in DE-C 32 36 647 is done.
- Adhesive beads can be produced in the visible area, who place higher demands on the uniformity of the adhesive bead than Adhesive beads which are arranged in the invisible area.
- the problems, that arise due to different viscosity differences, can however, cannot be solved satisfactorily.
- the invention has for its object a method and an apparatus therefor To provide through which the flow behavior of thick matter in a simple manner can be influenced in such a way that the nozzle openings are always the same Quantity to be output per unit of time.
- a temperature control device for flowable masses is known from EP 0316315 B, However, this temperature control unit is used in the delivery line for the flowable Bulks to be built in from one reservoir to one Proportional container leads. Integrating the proportional dispenser and that Exhaust valve in this temperature control circuit is not known from this.
- a strengthening of the walking through or shearing of the thick materials is achieved by the Providing a mixing section, for example by installing a static mixing tube in the Enema of the proportioner, achieved as proposed in claim 2.
- the development according to claim 7 has the advantage that the previously known Switching valve at the outlet of the proportioner can be omitted and the outlet valve be connected directly to the pressure chamber of the proportional metering device can. This further minimizes the control effort.
- the advantage is achieved that the thick materials be promoted discontinuously in the proportional meter, so that not there Thick matter must be stored over longer waiting times, which in turn increases Lead to differences in viscosity. This ensures that immediately before Order the thick materials to be sufficiently tumbled or sheared.
- the development according to claim 10 describes a preferred embodiment for Tempering.
- Claim 11 records a simple possibility of a volumetric control to provide.
- the Thixotropy can be kept constant.
- the development of the invention according to claim 13 increases the mixing or walking through the thick matter to be dosed.
- the invention is explained on the basis of the application of an adhesive to a component 1, which can be part of a motor vehicle, but need not be.
- the adhesive is provided in two drums 2 and 3. Every barrel is with one Feed pump 4, 5 provided. Your two pressure lines unite in the Node 6, from which a return line 7, 8 branches off for each barrel 2, 3. A pressure relief valve 9, 10 is installed in each return line. Both feed pumps are operated one after the other, so that only ever a barrel is delivered.
- a delivery line 11 runs from the node 6 to a proportional metering device 12th
- the delivery line 11 can through the pressure relief valves 9, 10 during the Downtime / standby time of the system can be relieved of pressure, so that a constant thixotropy is achieved.
- the proportional metering device 12 is connected directly to an outlet valve 13. Both proportional dosing device 12 and outlet valve 13 are operated by an automatic handling machine 14 worn and according to a pre-programmed path guided along the application surfaces of the workpiece 1. The control of the proportional dispenser and the outlet valve is controlled by the handling machine, so that no separate control is necessary.
- This Heat transfer circuit 15 includes a heating device 16 and a recooling device 17 and a feed pump, not shown. So that's it possible to keep the adhesive at a constant temperature.
- the entire delivery line 11 is not tempered, but only part of it. It turned out to be sufficient is to temper about 30 times the volume of the order, which in practice in corresponds to about 6 m delivery line.
- FIG. 2 shows the proportional metering device with a flanged outlet valve.
- the proportional metering device 12 is driven pneumatically. He has one Piston 18, which is movably arranged in a pressure chamber 19 and via a Proportional valve 36 is supplied with compressed air in a controlled manner.
- the piston is connected to a piston rod 20 and via the pressure chamber 19 is also extended into a metering chamber 22.
- the delivery line 11 is interposed with a shut-off valve 23 and a static mixing tube 35 connected to the metering chamber 22.
- An outlet 24 from the metering chamber 22 opens directly into the outlet valve 13 above a valve needle 25.
- a nozzle 26 is with the outlet valve open 13 the adhesive is discharged.
- the outlet valve 13 is also controlled pneumatically. For this is the nozzle needle 25 connected to a control piston 27 which acts against the force of a spring 28 opens.
- the outlet valve 13 is controlled via a 2/2-way valve 29.
- the proportional metering device 12 has three proximity switches for volume control 30, 31 and 32 on which detect the piston travel.
- the proximity switch detects 30 the rest position of the piston 18. In this position the shut-off valve 23 are opened and the metering chamber 22 are filled.
- the proximity switch 31 detects the minimum order quantity, i.e. reaches the Piston 18 in this position, the piston rod 20 has the in the metering chamber 22nd introduced adhesive but only rolled over a small amount of adhesive the opened outlet valve 13 pushed out.
- the proximity switch 32 indicates the maximum discharge amount, i.e. reached the piston 18 of this proximity switch, the piston rod 20 is located near the lower end of the metering chamber 22. This is the largest possible Amount of adhesives have been pushed out through the opened outlet valve 13.
- the amount of adhesive can be applied be monitored and regulated.
- the proximity switches 30 to 32 arranged according to the desired order quantity to each other.
- the pistons When the pistons are applied, they reach a position between the proximity switch 31 and 32, i.e. it runs over the proximity switch 31 but does not get there up to the proximity switch 32, the order quantity is in order.
- the dosing pressure can be set for the subsequent order the proportional valve 36 can be increased.
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Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren nach dem Oberbegriff des 1. Anspruchs
und auf eine Vorrichtung nach dem Oberbegriff des 6. Anspruchs.The invention relates to a method according to the preamble of claim 1
and on a device according to the preamble of
Auf vielen Gebieten der Technik, insbesondere bei der automatisierten Fertigung von Kraftfahrzeugkarosserien, ist es erforderlich, Dickstoffe, insbesondere Dicht- und Klebmittel, auf irgendwelche Flächen aufzubringen. Beispielsweise werden bei Kraftfahrzeugen entlang Kanten, Falzen oder Nähten von Karosserieteilen Dicht- und Klebstoff-Fäden bzw. dünne Streifen aufgebracht.In many areas of technology, especially in automated manufacturing of motor vehicle bodies, it is necessary to use thick materials, especially sealing and adhesive to apply to any surface. For example, at Motor vehicles along the edges, folds or seams of body parts and adhesive threads or thin strips applied.
Dieses Aufbringen kann sowohl von Hand als auch von programmgesteuerten Handhabungsautomaten, wie es beispielsweise in der DE-C 32 36 647 beschrieben ist, erfolgen.This application can be done by hand as well as by program-controlled Handling machines, as described for example in DE-C 32 36 647 is done.
In der Praxis sind derartige Auftragsvorgänge mit erheblichen Schwierigkeiten verbunden, weil einmal eine schnelle Fertigung gewünscht und zum anderen eine genügend und möglichst gleichmäßige Auftragung des Dickstoffes verlangt wird. Hierbei ist zu berücksichtigen, daß gleiche Dickstoffe immer wieder unterschiedliche Fließeigenschaften infolge unterschiedlicher Viskosität haben und zwar auch dann, wenn es sich um Dickstoffe derselben Herstellungscharge handelt, die in kürzester Zeit verarbeitet werden. Dadurch wird die gleichmäßige oder dosiert veränderbare Ausgabe der Dickstoffe erheblich beeinträchtigt.In practice, such order processes are associated with considerable difficulties, because on the one hand a quick production is wanted and on the other hand a sufficient and as even as possible application of the thick material is required. It must be taken into account here that the same thick matter is always different Have flow properties due to different viscosity and indeed when it concerns thick matter of the same production batch, which in processed in the shortest possible time. This will make the dosage even or even changeable output of the thick matter considerably impaired.
Die bereits bekanntgewordenen Vorrichtungen mit sehr feinfühligen Regelkreisen führen trotz großem Aufwand aufgrund ihrer großen Anfälligkeit zu dem dauerhaft gewünschten Ergebnis.The already known devices with very sensitive control loops lead to this in the long term despite great effort due to their great vulnerability desired result.
Aus dem KUKA Sonderdruck der Deutschen Fachzeitschrift Maschinenmarkt 1988, Heft 49, "Raupen legen" ist es bekannt, mit Hilfe von Robotern Klebstoffe aufzutragen. Hierbei wird ein sogenannter Volumendosierer verwendet, der direkt an der Roboterhand montiert sein kann. Das Auslaßventil ist direkt mit dem Volumendosierer verbunden, so daß die bisher übliche Schlauchleitung entfallen kann.From the KUKA reprint by the German trade magazine Maschinenmarkt 1988, Booklet 49, "Laying caterpillars", it is known with the help of robots adhesives to apply. Here, a so-called volume dispenser is used, which is directly on the robot hand can be mounted. The outlet valve is directly with the Volume metering connected so that the hoses that have been customary up to now are eliminated can.
Mit dieser Anordnung können Klebstoffraupen im Sichtbereich hergestellt werden, die höhere Anforderungen an die Gleichmäßigkeit der Klebstoffraupe stellen als Klebstoffraupen, die im nichtsichtbaren Bereich angeordnet werden. Die Probleme, die aufgrund unterschiedlicher Viskositätsunterschiede entstehen, können damit allerdings nicht zufriedenstellend gelöst werden.With this arrangement, adhesive beads can be produced in the visible area, who place higher demands on the uniformity of the adhesive bead than Adhesive beads which are arranged in the invisible area. The problems, that arise due to different viscosity differences, can however, cannot be solved satisfactorily.
Ausgehend von dem obengenannten Verfahren zum dosieren von Dickstoffen liegt der Erfindung die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung hierfür bereitzustellen, durch welche in einfacher Weise das Fließverhalten von Dickstoffen so beeinflußt werden kann, daß bei gleich großen Düsenöffnungen immer gleiche Menge pro Zeiteinheit ausgegeben werden.Based on the above method for dosing thick matter the invention has for its object a method and an apparatus therefor To provide through which the flow behavior of thick matter in a simple manner can be influenced in such a way that the nozzle openings are always the same Quantity to be output per unit of time.
Gelöst wird diese Aufgabe dadurch, daß eine Temperierung sowohl für die Proportionierung als für das Auslaßventil vorgesehen ist. Damit werden die Viskositätsunterschiede, die durch Temperaturänderungen hervorgerufen werden, vermieden. Somit können immer gleichmäßig starke Dickstoffraupen erzeugt werden.This problem is solved in that a tempering for both Proportionation than is provided for the outlet valve. With that, the Differences in viscosity caused by temperature changes, avoided. This means that thick caterpillars of uniform thickness can always be produced become.
Zwar ist aus der EP 0316315 B ein Temperiergerät für fließfähige Massen bekannt, dieses Temperiergerät dient jedoch dazu, in die Förderleitung für die fließfähigen Massen eingebaut zu werden, die von einem Vorratsbehälter zu einem Proportionalbehälter führt. Das Einbinden das Proportionaldosierers und das Auslaßventils in diesen Temperierkreislauf ist daraus jedoch nicht bekannt.A temperature control device for flowable masses is known from EP 0316315 B, However, this temperature control unit is used in the delivery line for the flowable Bulks to be built in from one reservoir to one Proportional container leads. Integrating the proportional dispenser and that Exhaust valve in this temperature control circuit is not known from this.
Unter Temperieren im Sinne der Erfindung wird das Erzielen einer konstanten Temperatur verstanden, d.h. je nach Umgebungseinflüssen ein Heizen oder Kühlen.Achieving a constant temperature control in the sense of the invention Understood temperature, i.e. Depending on the environmental influences, heating or cooling.
Eine Verstärkung des Durchwalkens bzw. Scherens der Dickstoffe wird durch das
Vorsehen einer Mischstrecke, bspw. durch Einbau eines statischen Mischrohres im
Einlauf des Proportionieres, erreicht, wie Anspruch 2 vorschlägt.A strengthening of the walking through or shearing of the thick materials is achieved by the
Providing a mixing section, for example by installing a static mixing tube in the
Enema of the proportioner, achieved as proposed in
Als besonders vorteilhaft hat sich die Weiterbildung nach Anspruch 3 herausgestellt.
Dadurch wird der Regelaufwand minimiert und trotzdem werden ausgezeichnete
Ergebnisse erzielt.The further development according to
Durch die Weiterbildung nach Anspruch 4 werden Viskositätsunterschiede,
hervorgerufen durch Temperaturänderungen, vermieden.Through the development according to
Die Weiterbildung nach Anspruch 7 hat den Vorteil, daß das sonst bisher bekannte Schaltventil am Auslaß des Proportionieres entfallen kann und das Auslaßventil dirkekt an der Druckkammer des Proportionaldosierers angeschlossen werden kann. Dadurch wird der Steuerungsaufwand weiter minimiert.The development according to claim 7 has the advantage that the previously known Switching valve at the outlet of the proportioner can be omitted and the outlet valve be connected directly to the pressure chamber of the proportional metering device can. This further minimizes the control effort.
Durch die Weiterbildung nach Anspruch 8 wird der Vorteil erzielt, daß die Dickstoffe
diskontinuierlich in den Proportionaldosierer gefördert werden, so daß dort nicht
Dickstoffe bevorratet werden müssen über längere Wartezeiten, die wiederum zu
Viskositätsunterschieden führen. Damit ist sichergestellt, daß unmittelbar vor dem
Auftrag die Dickstoffe ausreichend gewalkt bzw. geschert werden.Through the development according to
Durch die Weiterbildung nach Anspruch 9 werden Viskositätsunterschiede aufgrund von Temperaturunterschieden in der Förderleitung vermieden. Hierbei ist es allerdings nicht erforderlich, die gesamte Förderleitung zwischen dem Vorratsbehälter und dem Proportionaldosierer zu temperieren. Ausreichend ist, das 30fache Auftragsvolumen zu temperieren.The further development according to claim 9 causes viscosity differences of temperature differences in the delivery line avoided. Here it is however, the entire delivery line between the To temper the storage container and the proportional dispenser. It is sufficient that Temperature control 30 times the order volume.
Die Weiterbildung nach Anspruch 10 beschreibt eine bevorzugte Ausgestaltung zum Temperieren.The development according to claim 10 describes a preferred embodiment for Tempering.
Anspruch 11 zeichnet eine einfache Möglichkeit auf, eine volumetrische Regelung
vorzusehen.
Durch die Druckentlastung der Förderleitung bei Produktionsstillständen kann die Thixotropie konstant gehalten werden.By relieving the pressure on the delivery line during production downtimes, the Thixotropy can be kept constant.
Die Weiterbildung der Erfindung gemäß Anspruch 13 erhöht die Durchmischung
bzw. Durchwalkung des zu dosierenden Dickstoffes.The development of the invention according to
Im folgenden wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels näher erläutert. In the following the invention is based on a preferred embodiment explained in more detail.
Es stellt dar:
- Figur 1
- eine schematisierte Anordnung einer Anlage zum Dosieren von Dickstoffen;
Figur 2- einen schematisierten Querschnitt durch den Proportionaldosierer mit angeflanschtem Auslaßventil.
- Figure 1
- a schematic arrangement of a system for dosing thick matter;
- Figure 2
- a schematic cross section through the proportional meter with flanged outlet valve.
Erläutert wird die Erfindung anhand der Auftragung eines Klebstoffes auf ein Bauteil 1, das ein Teil eines Kraftfahrzeuges sein kann, aber nicht sein muß.The invention is explained on the basis of the application of an adhesive to a component 1, which can be part of a motor vehicle, but need not be.
Der Klebstoff wird in zwei Fässern 2 und 3 bereitgestellt. Jedes Faß ist mit einer
Förderpumpe 4, 5 versehen. Ihre beiden Druckleitungen vereinigen sich in dem
Knotenpunkt 6, von dem auch zu jedem Faß 2, 3 eine Rücklaufleitung 7, 8 abzweigt.
In jeder Rücklaufleitung ist ein Druckentlastungsventil 9, 10 eingebaut.
Beide Förderpumpen werden hintereinander betrieben, so daß immer nur aus
einem Faß geliefert wird.The adhesive is provided in two
Vom Knotenpunkt 6 aus verläuft eine Förderleitung 11 zu einem Proportionaldosierer
12.A
Die Förderleitung 11 kann durch die Druckentlastungsventile 9, 10 während der
Stillstandszeit/Bereitschaftszeit der Anlage druckentlastet werden, so daß eine
konstante Thixotropie erreicht wird.The
Der Proportionaldosierer 12 ist mit einem Auslaßventil 13 unmittelbar verbunden.
Beide, Proportionaldosierer 12 und Auslaßventil 13, werden von einem Handhabungsautomaten
14 getragen und entsprechend eines vorprogrammierten Weges
entlang den Auftragsflächen des Werkstückes 1 geführt. Die Steuerung des Proportionaldosierers
und des Auslaßventils geschieht über die Steuerung des Handhabungsautomaten,
so daß keine separate Steuerung notwendig ist.The
Ein Teil der Länge der Förderleitung 11 sowie des Proportionaldosierers 12 und
des Auslaßventils 13 sind Bestandteil eines Wärmeträgerkreislaufes 15. Dieser
Wärmeträgerkreislauf 15 beinhaltet eine Heizeinrichtung 16 sowie eine Rückkühleinrichtung
17 und eine nicht näher dargestellte Förderpumpe. Damit ist es
möglich, den Klebstoff immer auf konstante Temperatur zu halten.Part of the length of the
Wie in Figur 1 deutlich sichtbar ist, ist nicht die gesamte Förderleitung 11 temperiert,
sondern nur ein Teil von ihr. Es hat sich herausgestellt, daß es ausreichend
ist, etwa das 30fache des Auftragsvolumens zu temperieren, was in der Praxis in
etwa 6 m Förderleitung entspricht.As can be clearly seen in FIG. 1, the
In Figur 2 ist der Proportionaldosierer mit angeflanschtem Auslaßventil näher dargestellt.FIG. 2 shows the proportional metering device with a flanged outlet valve.
Der Proportionaldosierer 12 wird pneumatisch angetrieben. Er weist hierzu einen
Kolben 18 auf, der in einem Druckraum 19 beweglich angeordnet ist und über ein
Proportionalventil 36 gesteuert mit Druckluft versorgt wird.The
Der Kolben ist mit einer Kolbenstange 20 verbunden und über den Druckraum 19
hinaus verlängert ist bis in eine Dosierkammer 22.The piston is connected to a
Die Förderleitung 11 ist unter Zwischenschaltung eines Absperrventiles 23 und
eines statischen Mischrohres 35 an die Dosierkammer 22 angeschlossen.The
Ein Auslaß 24 aus der Dosierkammer 22 mündet direkt in das Auslaßventil 13
oberhalb einer Ventilnadel 25. Durch eine Düse 26 wird bei geöffnetem Auslaßventil
13 der Klebstoff ausgetragen.An
Das Auslaßventil 13 wird ebenfalls pneumatisch angesteuert. Hierzu ist die Düsennadel
25 mit einem Steuerkolben 27 verbunden, der gegen die Kraft einer Feder
28 öffnet. Gesteuert wird das Auslaßventil 13 über ein 2/2-Wegeventil 29.The
Zur Volumensteuerung weist der Proportionaldosierer 12 drei Näherungsschalter
30, 31 und 32 auf, die den Kolbenweg erfassen. Hierbei erfaßt der Näherungsschalter
30 die Ruhelage des Kolbens 18. In dieser Stellung kann das Absperrventil
23 geöffnet werden und die Dosierkammer 22 gefüllt werden. The
Der Näherungsschalter 31 erfaßt die minimale Auftragsmenge, d.h. erreicht der
Kolben 18 diese Stellung, hat die Kolbenstange 20 den in der Dosierkammer 22
eingebrachten Klebstoff durchgewalkt aber nur eine geringe Klebstoffmenge über
das geöffnete Auslaßventil 13 ausgeschoben.The
Der Näherungsschalter 32 kennzeichnet die maximale Austragsmenge, d.h. erreicht
der Kolben 18 diesen Näherungsschalter, befindet sich die Kolbenstange 20
nahe dem unteren Ende der Dosierkammer 22. Somit ist die größtmöglichste
Menge an Klebstoffen durch das geöffnete Auslaßventil 13 ausgeschoben worden.The
Dementsprechend kann auch mit diesen drei Näherungsschaltern die Klebstoffauftragsmenge
überwacht und geregelt werden. Dazu werden die Näherungsschalter
30 bis 32 entsprechend der gewünschten Auftragsmenge zueinander angeordnet.
Erreicht bei einem Auftrag der Kolben eine Stellung zwischen dem Näherungsschalter
31 und 32, d.h. er überfährt den Näherungsschalter 31 gelangt aber nicht
bis zum Näherungsschalter 32, so ist die Auftragsmenge in Ordnung.Accordingly, with these three proximity switches, the amount of adhesive can be applied
be monitored and regulated. To do this, the proximity switches
30 to 32 arranged according to the desired order quantity to each other.
When the pistons are applied, they reach a position between the
Erreicht der Kolben 18 nur den Näherungsschalter 31, so ist nur die Minimalmenge
ausgetragen worden, der Dosierdruck kann für den nachfolgenden Auftrag über
das Proportionalventil 36 erhöht werden.If the piston 18 only reaches the
Erreicht der Kolben nach dem Klebstoffauftrag den Max.-Schalter, so ist die etwas
mehr als die notwendige Menge ausgeschoben worden. Für den nächsten Auftragsvorgang
wird dann der Dosierdruck im Druckraum 19 erniedrigt. Werden bei
einem Auftragsvorgang der Näherungsschalter 31 nicht erreicht bzw. fährt der Kolben
über den Näherungsschalter 32 hinaus weiter nach unten, so ist die Austragsmenge
in beiden Fällen nicht in Ordnung und die Anlage meldet einen Störfall.If the piston reaches the max. Switch after applying the adhesive, it is something
more than the necessary amount has been pushed out. For the next order process
the metering pressure in the
In Figur 2 ist weiterhin noch bei der Förderleitung 11 eine Möglichkeit der Temperierung
dargestellt, indem nämlich die Förderleitung 11 doppelwandig ausgebildet
ist. Hierbei kann dann zwischen ihrer inneren Wandung 33 und ihrer äußeren
Wandung 34 ein Wärmeträger zirkulieren und so diesen Förderleitungsabschnitt
auf konstante Temperatur halten. Selbstverständlich kann auch das Schaltventil 23
in den Wärmeträgerkreislauf eingebunden sein, ebenso wie die Dosierkammer 22
des Proportionaldosierers und der Bereich um die Düsennadel 25 des Auslaßventiles
13.In Figure 2 there is still a possibility of temperature control in the
Claims (13)
- A method of metering thick substances which are conveyed from a supply under pressure, then proportioned and discharged through a controlled valve at a place of application, each amount applied being separately proportioned immediately in front of the discharge valve,
characterised in that the proportioning means and the discharge valve are temperature-controlled. - A method according to claim 1,
characterised in that the thick substances are thoroughly mixed before proportioning. - A method according to claim 1 or claim 2,
characterised in that proportioning is effected by purely volumetric control, in that if there are deviations in the amount applied during one discharge process, the next discharge process is adjusted to the set value. - A device according to any of the preceding claims,
characterised in that the feed line between the supply and the proportioning device is temperature-controlled over a length corresponding to about 30 times the volume applied by the proportioning device. - A method according to any of the preceding claims, characterised in that the delivery pressure is switched off when the device is on standby.
- A device for metering thick substances, comprising at least one storage container (2, 3) and one delivery pump (4, 5) connected by a delivery line (11) to a proportional metering device (12) directly attached to a controlled discharge valve (13), characterised in that temperature control means are provided and comprise both the proportional metering device (12) and the discharge valve (13).
- A device according to claim 6,
characterised in that the discharge valve (13) can be separately actuated via a control valve. - A device according to claim 6 or claim 7,
characterised in that a shut-off valve (23) is disposed in the delivery line (11) in front of the proportional metering device (12). - A device according to any of claims 6 to 8,
characterised in that the delivery line (11), starting from the proportional metering device (12), can be temperature-controlled over a length equal to about 30 times the volume applied by the proportional metering device (12). - A device according to claim 9,
characterised in that the temperature-control means comprises a heat transfer medium circuit incorporating means for heating and cooling the heat transfer medium. - A device according to any of claims 6 to 10,
characterised in that the proportional metering device (12) is equipped with a stroke control means. - A device according to any of claims 6 to 11,
characterised in that a pressure-relief valve is incorporated in the delivery line (11). - A device according to any of claims 6 to 12,
characterised in that a static mixer tube (35) is provided between the shut-off valve (23) and the metering chamber (22) of the proportional metering device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19536623A DE19536623C1 (en) | 1995-09-30 | 1995-09-30 | Device for metering out thick substances |
| DE19536623 | 1995-09-30 | ||
| PCT/EP1996/004238 WO1997012692A1 (en) | 1995-09-30 | 1996-09-27 | Method and device for metering viscous material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0853502A1 EP0853502A1 (en) | 1998-07-22 |
| EP0853502B1 true EP0853502B1 (en) | 2001-08-22 |
Family
ID=7773777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96933417A Revoked EP0853502B1 (en) | 1995-09-30 | 1996-09-27 | Method and device for metering viscous material |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6092691A (en) |
| EP (1) | EP0853502B1 (en) |
| DE (2) | DE19536623C1 (en) |
| ES (1) | ES2161376T3 (en) |
| WO (1) | WO1997012692A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11027496B2 (en) | 2018-02-01 | 2021-06-08 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Adhesive bonding and sealing of seams and joints |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE508434C2 (en) * | 1996-02-23 | 1998-10-05 | Scanrex Automation Ab | Method and system of dosing |
| AUPO247496A0 (en) | 1996-09-23 | 1996-10-17 | Resmed Limited | Assisted ventilation to match patient respiratory need |
| DE19742711C1 (en) * | 1997-09-26 | 1999-05-20 | Intec Bielenberg Gmbh & Co Kg | Device for applying adhesive dots on a substrate |
| DE19907166A1 (en) * | 1999-02-19 | 2000-08-24 | Loctite Deutschland Gmbh | Regulating predefined liquid product temp. and predefined product output pressure involves heating pre-heated product in heating tube with additional heating element using PID regulation |
| US6540104B1 (en) * | 2000-06-30 | 2003-04-01 | Fanuc Robotics North America, Inc. | Integral pneumatic dispenser and method for controlling same |
| CN100457290C (en) * | 2001-10-17 | 2009-02-04 | 武藏工程株式会社 | Liquid material delivering method and device therefor |
| DE10306387B4 (en) * | 2003-02-15 | 2005-12-15 | Robatech Ag | Apparatus and method for the controlled provision of a flowable medium |
| DE102006047658B4 (en) * | 2006-09-29 | 2009-03-19 | Ing. Erich Pfeiffer Gmbh | Microdosing device for a liquid medium |
| US7980197B2 (en) * | 2006-11-03 | 2011-07-19 | Illinois Tool Works, Inc. | Method and apparatus for dispensing a viscous material on a substrate |
| US9162249B2 (en) * | 2008-10-01 | 2015-10-20 | Panasonic Intellectual Property Management Co., Ltd. | Paste dispenser for applying paste containing fillers using nozzle with pin and application method using the same |
| US10407234B2 (en) * | 2012-09-05 | 2019-09-10 | Henkel IP & Holding GmbH | Two component fluid metering and mixing system |
| CN114502289A (en) * | 2019-10-07 | 2022-05-13 | 三键有限公司 | Discharge device, moving member, and flow control method |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662927A (en) * | 1970-01-21 | 1972-05-16 | Eric H Cocks | Hot-melt adhesive systems |
| DE3236647C2 (en) * | 1982-10-04 | 1985-02-28 | Intec Bielenberg GmbH & Co KG, 5014 Kerpen | Device for dispensing thick materials, in particular sealants and adhesives |
| FR2535627A1 (en) * | 1982-11-08 | 1984-05-11 | Vigan Sa | Heating device for the application of a pasty substance, especially an adhesive or a mastic. |
| US4530862A (en) * | 1983-04-29 | 1985-07-23 | Spraymation, Inc. | Control system and method for dispensing a liquid |
| DE3510110A1 (en) * | 1985-03-20 | 1986-10-02 | Walter Graf U. Co Gmbh & Co, 6980 Wertheim | Precision metering appliance and process for the precision metering of liquid media |
| DE3620875A1 (en) * | 1986-06-21 | 1988-01-21 | Intec Bielenberg Gmbh & Co Kg | Process for the dispensing of viscous substances, in particular sealants and adhesives |
| DE3624844A1 (en) * | 1986-07-23 | 1988-01-28 | Josef Schucker | TEMPERATURE DEVICE FOR LIQUID ADHESIVES |
| EP0412978B1 (en) * | 1988-04-20 | 1992-11-11 | Lenhardt Maschinenbau GmbH | Device for dispensing high-viscosity pasty compressible substances |
| DE3912920A1 (en) * | 1988-04-20 | 1989-12-28 | Lenhardt Maschinenbau | Device for delivering highly-viscous, pasty substances, in particular for applying sealants and adhesives to bodywork parts in bodywork construction |
| DE3935709A1 (en) * | 1989-10-26 | 1991-05-02 | Electronal Ges Fuer Elektronik | METHOD AND DEVICE FOR APPLYING SMALL QUANTITIES OF A PASTOUS MASS TO CIRCUIT BOARDS |
| IT1243378B (en) * | 1990-07-27 | 1994-06-10 | Loctite Corp | PROCEDURE AND PLANT FOR THE DISPENSING PARTICULARLY OF A SEALANT / ADHESIVE PRODUCT |
| DE4209065C2 (en) * | 1992-03-20 | 1994-01-13 | Opco Oberflaechentechnik Gmbh | Valve and dosing device |
| DE4440243A1 (en) * | 1994-11-11 | 1996-05-15 | Schwerdtel Ludwig Gmbh | Dosing device for viscous materials |
-
1995
- 1995-09-30 DE DE19536623A patent/DE19536623C1/en not_active Expired - Fee Related
-
1996
- 1996-09-27 DE DE59607545T patent/DE59607545D1/en not_active Revoked
- 1996-09-27 EP EP96933417A patent/EP0853502B1/en not_active Revoked
- 1996-09-27 ES ES96933417T patent/ES2161376T3/en not_active Expired - Lifetime
- 1996-09-27 WO PCT/EP1996/004238 patent/WO1997012692A1/en not_active Application Discontinuation
- 1996-09-27 US US09/043,673 patent/US6092691A/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11027496B2 (en) | 2018-02-01 | 2021-06-08 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Adhesive bonding and sealing of seams and joints |
| DE102018102238B4 (en) | 2018-02-01 | 2022-06-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Process for gluing and sealing seams and joints and application of a process |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19536623C1 (en) | 1996-10-02 |
| DE59607545D1 (en) | 2001-09-27 |
| WO1997012692A1 (en) | 1997-04-10 |
| US6092691A (en) | 2000-07-25 |
| EP0853502A1 (en) | 1998-07-22 |
| ES2161376T3 (en) | 2001-12-01 |
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