EP1663511A1 - Adhesive-fluid dispenser - Google Patents

Adhesive-fluid dispenser

Info

Publication number
EP1663511A1
EP1663511A1 EP04764865A EP04764865A EP1663511A1 EP 1663511 A1 EP1663511 A1 EP 1663511A1 EP 04764865 A EP04764865 A EP 04764865A EP 04764865 A EP04764865 A EP 04764865A EP 1663511 A1 EP1663511 A1 EP 1663511A1
Authority
EP
European Patent Office
Prior art keywords
adhesive fluid
cartridge
adhesive
dispensing device
heating
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Withdrawn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
EP04764865A
Other languages
German (de)
French (fr)
Inventor
Klaus Becker-Weimann
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.)
Kleiberit SE and Co KG
Original Assignee
Klebchemie MG Becker GmbH and Co KG
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 Klebchemie MG Becker GmbH and Co KG filed Critical Klebchemie MG Becker GmbH and Co KG
Publication of EP1663511A1 publication Critical patent/EP1663511A1/en
Withdrawn legal-status Critical Current

Links

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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/001—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces 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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00523—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the 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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like

Definitions

  • the present invention relates to an adhesive fluid dispensing device.
  • cartridges for silicone sealing compound are known, for example, in which the cartridge has a piston which can be actuated by a stamp provided thereon when it is inserted into a correspondingly formed dispensing device, so that the sealing compound flows out of a tip ,
  • the object of the present invention is to provide an adhesive fluid dispensing device in which the use of hot-melt adhesives is possible without the need for compressed air.
  • an adhesive fluid dispensing device with an adhesive fluid dispensing tip flowing from an adhesive fluid cartridge and a manually actuable adhesive fluid cartridge actuating stamp, it being provided that the adhesive fluid cartridge has a heating cartridge for heating the adhesive fluid onto a Stamp actuation is assigned sufficient temperature for the adhesive fluid dispensing tip flow.
  • An essential aspect of the present invention is therefore to be seen in the fact that it is used for hot-applied adhesive fluids and dispensing devices for manually operated ones
  • the adhesive fluid cartridge is primarily and / or exclusively heated by a heating cartridge arrangement, since the hot adhesive fluid that flows through the tip when the stamp is actuated is sufficient, if necessary after preheating by heat flow from the heating cartridge to heat a temperature sufficient for the flow.
  • This allows a very simple design of the adhesive fluid dispensing device, since heating is only required at defined points and thus a simple design of an adhesive fluid dispensing device is also made possible if it is to be used for adhesive fluids such as hot melt adhesives, in particular PUR adhesives, which are only sufficiently low-viscosity when heated ,
  • the dispensing tip can and will preferably consist of a highly thermally conductive material such as metal. This not only ensures a sufficiently high temperature resistance, but also ensures that the dispensing tip is preheated when heated by the flow of heat from the cartridge or heating cartridge and then when the adhesive fluid is dispensed by the adhesive fluid heated by the heating cartridge to a temperature sufficient for dispensing, that is pushed out of the cartridge, heated so much that there is no risk of solidification in the tip. At the same time, there may be lower temperatures at the tip due to contact with cold or colder material to be bonded.
  • the dispensing tip is positively connected to the adhesive fluid dispensing device or the cartridge, in particular by screwing.
  • the provision of a positive connection increases the thermal contact or the thermal contact areas and thus contributes to the quasi passive heating of the metal tip in adhesive fluid cartridges.
  • the actuating plunger which presses the piston in the adhesive fluid cartridge in the direction of the tip in order to cause the heated adhesive fluid to flow out, does not act on the piston over the entire area, but only acts on it in a small area.
  • the small area attack will preferably take place in the middle of the cartridge. This individually and / or in particular together contributes to the fact that only a small amount of heat is transferred to the stamp, which thus keeps the heat losses via the stamp low.
  • this contributes to a reduced temperature at the end of the actuation, even if there are high temperatures inside the cartridge and / or at the tip; on the other hand, it also improves occupational safety and ease of handling and also enables longer work after switching off the heating or, with the same heating output, shorter heating-up times and / or a weaker design of the heating cartridge.
  • a pistol-like or plier-like handle can be assigned to the stamp, which leads to further reduced actuation temperatures at the actuation end. Handling is also made easier.
  • the heating cartridge is usually arranged around the cartridge in such a way that the cartridge content is heated not only from one side, but in particular from diametrically opposite sides and / or from several locations along the surface of the cartridge. In this way, uneven heating of the cartridge contents and thus local overheating can largely be avoided.
  • the heating cartridge will preferably also isolate the adhesive fluid cartridge against heat loss and be designed such that it can be disconnected from a power supply during the adhesive fluid dispensing. This makes it possible to first heat the adhesive fluid dispensing device to a temperature at which an adhesive fluid cartridge content, such as a sufficient amount of polyurethane hot-melt adhesive or other hot-melt adhesives for certain bonds, is completely heated to the required temperature and, after heating, will ensure that the adhesive fluid dispensing device is not impaired by Power cord is good to use. At the same time, no heavy power supplies such as accumulators and the like have to be moved.
  • an adhesive fluid cartridge content such as a sufficient amount of polyurethane hot-melt adhesive or other hot-melt adhesives for certain bonds
  • Fig. 2 the representation of an adhesive fluid dispensing device with exemplary temperature information and pliers-like handle.
  • FIG. 1 shows an adhesive fluid dispensing device 1 with an adhesive fluid dispensing tip 3 flowing from an adhesive fluid cartridge 2 and a manually operable one
  • Adhesive fluid cartridge actuating stamp 4 the adhesive fluid cartridge 2 being assigned a heating cartridge 5 for heating the adhesive fluid to a temperature sufficient for the adhesive fluid dispensing tip flow when the stamp is actuated.
  • the adhesive fluid dispensing device 1 is provided with a front handle 1 a, which is formed in one piece with a covering 1 b of the heating cartridge 5 and the adhesive fluid cartridge 2 located therein.
  • a front opening lc is provided in the casing 1b, through which the adhesive fluid dispensing tip 3 protrudes.
  • a guide (not shown in FIG. 1) for the adhesive fluid cartridge actuating stamp 4 is provided.
  • the adhesive fluid cartridge 2 is a tinplate cartridge which is at least largely solid in the cold state and which has a screw thread 2a at its discharge end and which has a piston 2b on the side facing away from it, against which the adhesive fluid cartridge actuating stamp 4 rests.
  • the piston 2b lies tightly against the inner wall of the cartridge without play and is slidable in it. It also seals the heated adhesive fluid against the ingress of air.
  • the dispensing tip 3 is screwed onto the thread 2a of the adhesive fluid cartridge, as a result of which, when the cartridge is fixed in the adhesive fluid dispensing device 1, it is fixed relative to the latter and thus to the adhesive fluid dispensing device.
  • the adhesive fluid dispensing tip 3 is formed of metal and has an adhesive fluid-flow channel 3 a, which has a shape required for a desired application width. This can favor spraying or spreading.
  • the length of the adhesive fluid dispensing tip 3 is selected such that it can be flowed through when the adhesive fluid heated to operating temperature flows through it, without the risk of clogging, due to adhesive fluid cooling in the channel 3a.
  • the walls 3b around the channel 3a have a sufficient thickness, and at the same time the mechanical stability is ensured.
  • the walls can be formed, in particular to facilitate screwing onto or detachment from the adhesive fluid cartridge, in a shape that is easily attackable by tools, in particular hexagonal.
  • the adhesive fluid cartridge actuating stamp 4 is formed from a sufficiently long metal rod 4a and a rear actuating transverse rod 4b and acts centrally on the adhesive fluid cartridge piston 2b over a small area, as indicated at 4c.
  • Adhesive fluid cartridge actuating stamp 4 is slidably mounted for pressing the piston 2b in the direction of the arrow 7 towards the tip 3; As can be seen in FIG. 2, pistol-like pliers handles known per se can be used in addition to or instead of the manual actuating transverse rod 4b.
  • the heating cartridge 5 is guided around the adhesive fluid cartridge in the form of a single heating winding.
  • the arrangement around the adhesive fluid cartridge casing is designed such that the entire contents of the adhesive fluid cartridge are heated as uniformly as possible when the heating cartridge 5 is heated.
  • the heating cartridge 5 is to be connected to an electrical power supply via a short connecting line 5b.
  • a full adhesive fluid cartridge with adhesive fluid that is still solid is inserted into the adhesive fluid dispensing device 1 and the tip 3 is screwed on.
  • the heating element 5 is connected via line 5b to an energy source and thus heats up to an operating temperature of, for example, 130 ° C.
  • the adhesive fluid in the The adhesive fluid cartridge melts evenly from all sides without fear of local overheating.
  • the line 5b can be disconnected from the power supply and the adhesive fluid dispensing device can be carried to a place of use.
  • adhesive fluid can be pressed out of the tip 3 by manually actuating the adhesive fluid cartridge actuating stamp 4.
  • the heating cartridge insulates the cartridge against heat loss and is therefore also an insulating agent.
  • the temperature values determined on the adhesive fluid dispensing device after heating can be seen in FIG. 2. It can be seen that the temperatures at the
  • Adhesive fluid dispenser are such that the hottest exposed location is the adhesive fluid dispenser tip. If necessary, additional insulation can be used to ensure that certain limit temperatures, such as those prescribed for occupational safety reasons, are not exceeded. Even then, however, nothing changes in the fact that the adhesive fluid dispensing tip 3 has a sufficiently high temperature for the adhesive fluid dispensing.
  • the cartridge can be removed, any adhesive fluid still present can be removed from the tip 3 by inserting a cleaning cartridge, and the adhesive fluid dispenser 1 can be put aside until the next use.

Abstract

The invention relates to an adhesive-fluid dispenser (1) comprising an adhesive-fluid distribution device with an adhesive-fluid distribution tip (3) that is supplied by an adhesive-fluid cartridge (2) and a manually-operated adhesive-fluid cartridge actuation plunger (4). According to the invention, a heating cartridge (5), which heats the adhesive fluid to a sufficient temperature permitting the flow of adhesive fluid through the distribution tip when the plunger is actuated, is allocated to the adhesive-fluid cartridge.

Description

Klebefluidausgabevorrichtung Adhesive fluid dispenser
Die vorliegende Erfindung betrifft eine Klebefluidausgabevorrichtung.The present invention relates to an adhesive fluid dispensing device.
Es gibt eine Reihe von Anwendungen, bei denen zu verarbeitende Fluide in Kartuschen abgefüllt und dann ausgegeben werden müssen. Im Heimwerker- bzw. kleinen Handwerkerbetrieb sind dazu etwa Kartuschen für Silikon-Dichtmasse bekannt, bei denen die Kartusche einen Kolben aufweist, der bei Einlegen in eine entsprechend gebildete Ausgabevorrichtung von einem daran vorgesehenen Stempel betätigt werden kann, so dass die Dichtmasse aus einer Spitze ausströmt.There are a number of applications in which fluids to be processed have to be filled into cartridges and then dispensed. In the home improvement or small handicraft business, cartridges for silicone sealing compound are known, for example, in which the cartridge has a piston which can be actuated by a stamp provided thereon when it is inserted into a correspondingly formed dispensing device, so that the sealing compound flows out of a tip ,
Es ist auch bereits bekannt, nur heiß zu verklebende Klebemassen in einer Vorrichtung zu erwärmen und als Fluid unter Verwendung von Druckluft durch eine Ausgabespritze auszutreiben. Derartige Vorrichtungen sind jedoch auf Grund des Erfordernisses, Druckluft zu verwenden, sehr teuer und daher für den typischen Heimwerker oder Kleinhandwerker nicht geeignet, insbesondere dann nicht, wenn die Vorrichtung auf einer Baustelle möglichst frei beweglich eingesetzt werden soll und keine Pressluft zur Verfügung steht. Dort werden schon deswegen typisch Kaltklebstoffe eingesetzt.It is also already known to heat only hot-melt adhesives in a device and to expel them as fluid using compressed air through an output syringe. However, due to the requirement to use compressed air, such devices are very expensive and are therefore not suitable for the typical handyman or small handyman, especially not if the device is to be used as freely as possible on a construction site and no compressed air is available. For this reason alone, cold adhesives are typically used.
Die Aufgabe der vorliegenden Erfindung besteht darin, eine Klebefluidausgabevorrichtung bereitzustellen, bei der die Verwendung von heiß zu verklebenden Klebemassen möglich ist, ohne dass hierzu Druckluft erforderlich wäre.The object of the present invention is to provide an adhesive fluid dispensing device in which the use of hot-melt adhesives is possible without the need for compressed air.
Diese Aufgabe wird gelöst durch eine Klebefluidausgabevorrichtung mit einer aus einer Klebefluidkartusche angeströmten Klebefluidausgabespitze und einem manuell betätigbaren Klebefluidkartuschenbetätigungsstempel vor, wobei vorgesehen ist, dass der Klebefluidkartusche eine Heizpatrone zur Erwärmung des Klebefluids auf eine bei Stempelbetätigung zur Klebefluidausgabespitzendurchströmung ausreichende Temperatur zugeordnet ist.This object is achieved by an adhesive fluid dispensing device with an adhesive fluid dispensing tip flowing from an adhesive fluid cartridge and a manually actuable adhesive fluid cartridge actuating stamp, it being provided that the adhesive fluid cartridge has a heating cartridge for heating the adhesive fluid onto a Stamp actuation is assigned sufficient temperature for the adhesive fluid dispensing tip flow.
Ein wesentlicher Aspekt der vorliegenden Erfindung ist somit darin zu sehen, dass es bei heiß aufzubringenden Klebefluiden und Ausgabevorrichtungen für manuell betätigteAn essential aspect of the present invention is therefore to be seen in the fact that it is used for hot-applied adhesive fluids and dispensing devices for manually operated ones
Anwendung zur Erzielung guter Klebeergebnisse bereits ausreicht, wenn primär und/oder ausschließlich die Klebefluidkartusche von einer Heizpatronenanordnung erwärmt wird, da das heiße Klebefluid, das bei Stempelbetätigung durch die Spitze strömt, ausreicht, diese, gegebenenfalls nach Vorerwärmung durch Wärmefluss von der Heizpatrone her, auf eine für die Durchströmung ausreichende Temperatur zu erwärmen. Dies erlaubt eine sehr einfache Ausbildung der Klebefluidausgabevorrichtung, da lediglich an definierten Stellen eine Erwärmung erforderlich ist und somit eine einfache Ausbildung einer Klebefluidausgabevorrichtung auch dann ermöglicht wird, wenn diese für nur erwärmt hinreichend niedrig viskose Klebefluide wie Schmelzklebstoffe, insbesondere PUR- Klebstoffe, eingesetzt werden soll.Application for achieving good adhesive results is sufficient if the adhesive fluid cartridge is primarily and / or exclusively heated by a heating cartridge arrangement, since the hot adhesive fluid that flows through the tip when the stamp is actuated is sufficient, if necessary after preheating by heat flow from the heating cartridge to heat a temperature sufficient for the flow. This allows a very simple design of the adhesive fluid dispensing device, since heating is only required at defined points and thus a simple design of an adhesive fluid dispensing device is also made possible if it is to be used for adhesive fluids such as hot melt adhesives, in particular PUR adhesives, which are only sufficiently low-viscosity when heated ,
Die Ausgabespitze kann und wird bevorzugt aus gut wärmeleitfähigem Material wie Metall bestehen. Dies gewährleistet nicht nur eine hinreichend hohe Temperaturbeständigkeit, sondern stellt auch sicher, dass die Ausgabespitze beim Aufheizen durch Wärmefluss von der Kartusche bzw. Heizpatrone her schon vorerwärmt wird und dann bei Klebefluidausgabe durch das von der Heizpatrone auf eine zur Ausgabe hinreichende Temperatur erwärmte Klebefluid, das aus der Kartusche nachdrängt, so stark erwärmt wird-, dass keine Gefahr des Erstarrens in der Spitze besteht. Zugleich können gegebenenfalls an der Spitze geringere Temperaturen durch Berührung mit kaltem oder kälterem, zu verklebendem Material vorliegen.The dispensing tip can and will preferably consist of a highly thermally conductive material such as metal. This not only ensures a sufficiently high temperature resistance, but also ensures that the dispensing tip is preheated when heated by the flow of heat from the cartridge or heating cartridge and then when the adhesive fluid is dispensed by the adhesive fluid heated by the heating cartridge to a temperature sufficient for dispensing, that is pushed out of the cartridge, heated so much that there is no risk of solidification in the tip. At the same time, there may be lower temperatures at the tip due to contact with cold or colder material to be bonded.
Besonders bevorzugt ist es, wenn die Ausgabespitze formschlüssig mit der Klebefluidausgabevorrichtung oder der Kartusche verbunden ist, insbesondere durch Verschraubung. Das Vorsehen einer formschlüssigen Verbindung erhöht den Wärmekontakt bzw. die Wärmekontaktflächen und trägt somit zur quasi passiven Erwärmung der Metallspitze bei Klebefluidkartuschen bei. Es ist besonders bevorzugt, wenn der Betätigungsstempel, der den Kolben in der Klebefluidkartusche in Richtung auf die Spitze vorpresst, um ein Ausströmen des erwärmten Klebefluids zu bewirken, nicht vollflächig auf den Kolben wirkt, sondern lediglich kleinflächig daran angreift. Der kleinflächige Angriff wird bevorzugt in der Mitte der Kartusche erfolgen. Dies trägt jeweils einzeln und/oder insbesondere zusammen dazu bei, dass auf den Stempel nur eine geringe Wärmemenge übertragen wird, was somit die Wärmeverluste über den Stempel gering hält. Dies trägt einerseits zu einer verringerten Temperatur am Betätigungsende bei, auch wenn hohe Temperaturen innerhalb der Kartusche und/oder an der Spitze vorliegen; es verbessert andererseits auch die Arbeitssicherheit bzw. die Bequemlichkeit der Handhabung und ermöglicht zudem ein längeres Arbeiten nach Ausschalten der Heizung bzw., bei gleicher Heizleistung, geringere Aufheizzeiten und/oder eine schwächere Auslegung der Heizpatrone.It is particularly preferred if the dispensing tip is positively connected to the adhesive fluid dispensing device or the cartridge, in particular by screwing. The provision of a positive connection increases the thermal contact or the thermal contact areas and thus contributes to the quasi passive heating of the metal tip in adhesive fluid cartridges. It is particularly preferred if the actuating plunger, which presses the piston in the adhesive fluid cartridge in the direction of the tip in order to cause the heated adhesive fluid to flow out, does not act on the piston over the entire area, but only acts on it in a small area. The small area attack will preferably take place in the middle of the cartridge. This individually and / or in particular together contributes to the fact that only a small amount of heat is transferred to the stamp, which thus keeps the heat losses via the stamp low. On the one hand, this contributes to a reduced temperature at the end of the actuation, even if there are high temperatures inside the cartridge and / or at the tip; on the other hand, it also improves occupational safety and ease of handling and also enables longer work after switching off the heating or, with the same heating output, shorter heating-up times and / or a weaker design of the heating cartridge.
Dem Stempel kann ein pistolen- oder zangenartiger Griff zugeordnet sein, was am Betätigungsende zu weiter reduzierten Betätigungstemperaturen führt. Überdies wird die Handhabung erleichtert. Die Heizpatrone wird üblicherweise so um die Kartusche herum angeordnet, dass der Kartuscheninhalt nicht nur von einer Seite, sondern insbesondere von diametral entgegengesetzten Seiten her und/oder von mehreren Stellen längs der Kartuschenmantelfläche erwärmt wird. Auf diese Weise kann eine ungleichmässige Erwärmung des Kartuscheninhaltes und somit eine lokale Überhitzung weitgehend vermieden werden.A pistol-like or plier-like handle can be assigned to the stamp, which leads to further reduced actuation temperatures at the actuation end. Handling is also made easier. The heating cartridge is usually arranged around the cartridge in such a way that the cartridge content is heated not only from one side, but in particular from diametrically opposite sides and / or from several locations along the surface of the cartridge. In this way, uneven heating of the cartridge contents and thus local overheating can largely be avoided.
Die Heizpatrone wird bevorzugt die Klebefluidkartusche auch gegen Wärmeverluste isolieren und so ausgebildet sein, dass sie während der Klebefluidausgabe von einer Leistungsversorgung abtrennbar ist. Dies ermöglicht es, die Klebefluidausgabevorrichtung zunächst auf eine Temperatur zu erwärmen, bei der ein Klebefluidkartuscheninhalt wie eine für bestimmte Verklebungen hinreichende Menge Polyurethanschmelzklebstoff oder anderer Schmelzklebstoffe vollständig auf die erforderliche Temperatur aufgeheizt ist und wird nach dem Erwärmen dafür Sorge tragen, dass die Klebefluidausgabevorrichtung ohne Beeinträchtigung durch Netzkabel gut einsetzbar ist. Zugleich müssen keine schweren Leistungsversorgungen wie Akkumulatoren und dergleichen mit bewegt werden. Die Erfindung wird im Folgenden nur beispielsweise an Hand der Zeichnungen erläutert, ohne dass die Erfindung auf diese beschränkt wäre. Es zeigtThe heating cartridge will preferably also isolate the adhesive fluid cartridge against heat loss and be designed such that it can be disconnected from a power supply during the adhesive fluid dispensing. This makes it possible to first heat the adhesive fluid dispensing device to a temperature at which an adhesive fluid cartridge content, such as a sufficient amount of polyurethane hot-melt adhesive or other hot-melt adhesives for certain bonds, is completely heated to the required temperature and, after heating, will ensure that the adhesive fluid dispensing device is not impaired by Power cord is good to use. At the same time, no heavy power supplies such as accumulators and the like have to be moved. The invention is explained below only by way of example with reference to the drawings, without the invention being restricted to these. It shows
Fig. 1: eine erfindungsgemäße Klebefluidausgabevorrichtung und1: an adhesive fluid dispensing device according to the invention and
Fig. 2: die Darstellung einer Klebefluidausgabevorrichtung mit beispielhaften Temperaturangaben und zangenartigem Griff.Fig. 2: the representation of an adhesive fluid dispensing device with exemplary temperature information and pliers-like handle.
Fig. 1 zeigt eine Klebefluidausgabevorrichtung 1 mit aus einer Klebefluidkartusche 2 angeströmten Klebefluidausgabespitze 3 und einen manuell betätigbaren1 shows an adhesive fluid dispensing device 1 with an adhesive fluid dispensing tip 3 flowing from an adhesive fluid cartridge 2 and a manually operable one
Klebefluidkartuschenbetätigungsstempel 4, wobei der Klebefluidkartusche 2 eine Heizpatrone 5 zur Erwärmung des Klebefluids auf eine bei Stempelbetätigung zur Klebefluidausgabespitzendurchströmung ausreichende Temperatur zugeordnet ist.Adhesive fluid cartridge actuating stamp 4, the adhesive fluid cartridge 2 being assigned a heating cartridge 5 for heating the adhesive fluid to a temperature sufficient for the adhesive fluid dispensing tip flow when the stamp is actuated.
Die Klebefluidausgabevorrichtung 1 ist im vorliegenden Fall mit einem vorderen Haltegriff la versehen, der mit einer Umhüllung lb der Heizpatrone 5 und der darin befindlichen Klebefluidkartusche 2 einstückig gebildet ist. In der Umhüllung lb ist ein vorderer Durchbruch lc vorgesehen, durch den die Klebefluidausgabespitze 3 ragt. Auf der von der Spitze 3 abgewandten Seite der Klebefluidausgabevorrichtung ist eine (in Fig. 1 nicht gezeigte) Führung für den Klebefluidkartuschenbetätigungsstempel 4 vorgesehen.In the present case, the adhesive fluid dispensing device 1 is provided with a front handle 1 a, which is formed in one piece with a covering 1 b of the heating cartridge 5 and the adhesive fluid cartridge 2 located therein. A front opening lc is provided in the casing 1b, through which the adhesive fluid dispensing tip 3 protrudes. On the side of the adhesive fluid dispensing device facing away from the tip 3, a guide (not shown in FIG. 1) for the adhesive fluid cartridge actuating stamp 4 is provided.
Die Klebefluidkartusche 2 ist im vorliegenden Fall eine mit in kaltem Zustand zumindest weitgehend festem Polyurethanschmelzklebstoff gefüllte Kartusche aus Weissblech, die an ihrem Ausgabeende ein Schraubgewinde 2a aufweist und die auf der davon abgewandten Seite einen Kolben 2b aufweist, an dem der Klebefluidkartuschenbetätigungsstempel 4 anliegt. Der Kolben 2b liegt spielfrei dicht an der Innenwand der Kartusche an und ist in dieser gleitfähig. Er dichtet zugleich das erwärmte Klebefluid gegen Eindringen von Luft ab.In the present case, the adhesive fluid cartridge 2 is a tinplate cartridge which is at least largely solid in the cold state and which has a screw thread 2a at its discharge end and which has a piston 2b on the side facing away from it, against which the adhesive fluid cartridge actuating stamp 4 rests. The piston 2b lies tightly against the inner wall of the cartridge without play and is slidable in it. It also seals the heated adhesive fluid against the ingress of air.
Die Ausgabespitze 3 ist auf das Gewinde 2a der Klebefluidkartusche aufgeschraubt, wodurch sie bei in der Klebefluidausgabevorrichtung 1 fixierter Kartusche relativ zu dieser und somit zur Klebefluidausgabevorrichtung fest steht. Die Klebefluidausgabespitze 3 ist aus Metall gebildet und weist einen klebefluiddurchströmten Kanal 3 a auf, der eine für eine gewünschte Auftragebreite erforderliche Form besitzt. Diese kann ein Sprühen oder flächiges Auftragen begünstigen.The dispensing tip 3 is screwed onto the thread 2a of the adhesive fluid cartridge, as a result of which, when the cartridge is fixed in the adhesive fluid dispensing device 1, it is fixed relative to the latter and thus to the adhesive fluid dispensing device. The adhesive fluid dispensing tip 3 is formed of metal and has an adhesive fluid-flow channel 3 a, which has a shape required for a desired application width. This can favor spraying or spreading.
Die Länge der Klebefluidausgabespitze 3 ist so gewählt, dass sie bei Durchströmen des auf Betriebstemperatur erwärmten Klebefluids ohne die Gefahr von Pfropfenbildung durch im Kanal 3a erkaltendes Klebefluid durchströmbar ist. Dazu haben die Wände 3b um den Kanal 3 a eine hinreichende Dicke, wobei zugleich die mechanische Stabilität gewährleistet ist. Die Wände können insbesondere zur Erleichterung des Aufschraubens auf die Klebefluidkartusche oder des Lösens von dieser in einer für Werkzeuge gut angreifbaren Form, insbesondere sechseckig, gebildet sein.The length of the adhesive fluid dispensing tip 3 is selected such that it can be flowed through when the adhesive fluid heated to operating temperature flows through it, without the risk of clogging, due to adhesive fluid cooling in the channel 3a. For this purpose, the walls 3b around the channel 3a have a sufficient thickness, and at the same time the mechanical stability is ensured. The walls can be formed, in particular to facilitate screwing onto or detachment from the adhesive fluid cartridge, in a shape that is easily attackable by tools, in particular hexagonal.
Der Klebefluidkartuschenbetätigungsstempel 4 ist aus einem hinreichend langen Metallstab 4a und einer hinteren Betätigungsquerstange 4b gebildet und greift am Klebefluidkartuschenkolben 2b zentral kleinflächig an, wie bei 4c angedeutet. DerThe adhesive fluid cartridge actuating stamp 4 is formed from a sufficiently long metal rod 4a and a rear actuating transverse rod 4b and acts centrally on the adhesive fluid cartridge piston 2b over a small area, as indicated at 4c. The
Klebefluidkartuschenbetätigungsstempel 4 ist zum Pressen des Kolbens 2b in Richtung des Pfeiles 7 auf die Spitze 3 hin gleitfähig verschiebbar gelagert; es können, wie in Fig. 2 ersichtlich, neben oder an Stelle der manuellen Betätigungsquerstange 4b auch per se bekannte pistolenartige Zangengriffe verwendet werden.Adhesive fluid cartridge actuating stamp 4 is slidably mounted for pressing the piston 2b in the direction of the arrow 7 towards the tip 3; As can be seen in FIG. 2, pistol-like pliers handles known per se can be used in addition to or instead of the manual actuating transverse rod 4b.
Die Heizpatrone 5 ist um die Klebefluidkartusche in Form einer einzelnen Heizwicklung geführt. Die Anordnung um den Klebefluidkartuschenmantel herum ist so ausgebildet, dass eine möglichst gleichmäßige Erwärmung des gesamten Klebefluidkartuscheninhaltes bei Aufheizung der Heizpatrone 5 erfolgt. Die Heizpatrone 5 ist über eine kurze Verbindungsleitung 5b mit einer elektrischen Stromversorgung zu verbinden.The heating cartridge 5 is guided around the adhesive fluid cartridge in the form of a single heating winding. The arrangement around the adhesive fluid cartridge casing is designed such that the entire contents of the adhesive fluid cartridge are heated as uniformly as possible when the heating cartridge 5 is heated. The heating cartridge 5 is to be connected to an electrical power supply via a short connecting line 5b.
Die Anordnung nach Fig. 1 kann wie folgt verwendet werden.1 can be used as follows.
Zunächst wird eine volle Klebefluidkartusche mit noch festem Klebefluid in die Klebefluidausgabevorrichtung 1 eingesetzt und die Spitze 3 aufgeschraubt. Danach wird die Heizpafrone 5 über die Leitung 5b mit einer Energiequelle verbunden und erwärmt sich somit auf eine Betriebstemperatur von beispielsweise 130°C. Das Klebefluid in der Klebefluidkartusche schmilzt dabei gleichmäßig von allen Seiten her, ohne dass eine lokale Überhitzung zu befürchten ist. Nach einer vorgegebenen, kurzen Zeit kann die Leitung 5b von der Energieversorgung getrennt werden und die Klebefluidausgabevorrichtung zu einem Ort der Benützung getragen werden. Hier kann durch manuelles Betätigen des Klebefluidkartuschenbetätigungsstempels 4 Klebefluid aus der Spitze 3 ausgepresst werden. Die Heizpatrone isoliert dabei die Kartusche gegen Wärmeverluste und stellt somit zugleich ein Isoliermittel dar.First, a full adhesive fluid cartridge with adhesive fluid that is still solid is inserted into the adhesive fluid dispensing device 1 and the tip 3 is screwed on. Then the heating element 5 is connected via line 5b to an energy source and thus heats up to an operating temperature of, for example, 130 ° C. The adhesive fluid in the The adhesive fluid cartridge melts evenly from all sides without fear of local overheating. After a predetermined, short time, the line 5b can be disconnected from the power supply and the adhesive fluid dispensing device can be carried to a place of use. Here, adhesive fluid can be pressed out of the tip 3 by manually actuating the adhesive fluid cartridge actuating stamp 4. The heating cartridge insulates the cartridge against heat loss and is therefore also an insulating agent.
Die nach Erwärmen bestimmten Temperaturwerte an der Klebefluidausgabevorrichtung sind in Fig. 2 zu erkennen. Es ist ersichtlich, dass die Temperaturen an derThe temperature values determined on the adhesive fluid dispensing device after heating can be seen in FIG. 2. It can be seen that the temperatures at the
Klebefluidausgabevorrichtung so sind, dass die heißeste freiliegende Stelle die Klebefluidausgabespitze ist. Gegebenenfalls kann eine Isolierung zusätzlich verwendet werden, die sicherstellt, dass bestimmte Grenztemperaturen, die etwa aus Gründen der Arbeitssicherheit vorgeschrieben sind, nicht überschritten werden. Auch dann ändert sich jedoch nichts daran, dass die Klebefluidausgabespitze 3 eine hinreichend hohe Temperatur für die Klebefluidausgabe besitzt.Adhesive fluid dispenser are such that the hottest exposed location is the adhesive fluid dispenser tip. If necessary, additional insulation can be used to ensure that certain limit temperatures, such as those prescribed for occupational safety reasons, are not exceeded. Even then, however, nothing changes in the fact that the adhesive fluid dispensing tip 3 has a sufficiently high temperature for the adhesive fluid dispensing.
Nach der Klebefluidausgabe kann die Kartusche entfernt werden, gegebenenfalls noch vorhandenes Klebefluid durch Einsetzen einer Reinigungskartusche aus der Spitze 3 entfernt werden und die Klebefluidausgabevorrichtung 1 bis zur nächsten Verwendung bei Seite gelegt werden.After the adhesive fluid has been dispensed, the cartridge can be removed, any adhesive fluid still present can be removed from the tip 3 by inserting a cleaning cartridge, and the adhesive fluid dispenser 1 can be put aside until the next use.
Es ist auch möglich, Klebefluid in der Kartusche zu belassen und für eine spätere Verwendung neuerlich zu erwärmen.It is also possible to leave adhesive fluid in the cartridge and rewarm it for later use.
Anders als vorliegend ausgeführt, ist es weiter möglich, an Stelle einer separaten Klebefluidausgabespitze auch eine Spitze vorzusehen, die fest mit der Klebefluidkartusche verbunden ist. In contrast to the present embodiment, it is also possible to provide a tip instead of a separate adhesive fluid dispensing tip, which tip is firmly connected to the adhesive fluid cartridge.

Claims

Patentansprüche claims
1. Klebefluidausgabevorrichtung mit einer aus einer Klebefluidkartusche angeströmten Klebefluidausgabespitze und einem manuell betätigbaren Klebefluidkartuschenbetätigungsstempel, dadurch gekennzeichnet, dass der Klebefluidkartusche eine Heizpatrone zur Erwärmung des Klebefluids auf eine bei Stempelbetätigung zur Klebefluidausgabespitzendurchströmung ausreichende Temperatur zugeordnet ist.1. Adhesive fluid dispensing device with an adhesive fluid dispensing tip flowing from an adhesive fluid cartridge and a manually operable adhesive fluid cartridge actuating stamp, characterized in that the adhesive fluid cartridge is assigned a heating cartridge for heating the adhesive fluid to a temperature sufficient for the adhesive fluid dispensing tip flow when the stamp is actuated.
2. Klebefluidausgabevorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Ausgabespitze aus gut wärmeleitfähigen Metrial besteht.2. Adhesive fluid dispensing device according to claim 1, characterized in that the dispensing tip consists of highly thermally conductive metrial.
3. Klebefluidausgabevorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Ausgabespitze im Wesentlichen nur durch das ausströmende Klebefluid erwärmt ist.3. Adhesive fluid dispensing device according to claim 1 or 2, characterized in that the dispensing tip is heated essentially only by the outflowing adhesive fluid.
4. Klebefluidausgabevorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Ausgabespitze auf ein Metallgewinde an der insbesondere aus Metall bestehenden Klebefluidkartusche geschraubt ist und/oder auf ein Metallgewinde auf der Ausgabevorrichtung und die Ausgabevorrichtung mit der Klebefluidkartusche verschraubt oder formschlüssig verbunden ist.4. Adhesive fluid dispensing device according to one of claims 1 to 3, characterized in that the dispensing tip is screwed onto a metal thread on the adhesive fluid cartridge consisting in particular of metal and / or screwed onto a metal thread on the dispensing device and the dispensing device is screwed to the adhesive fluid cartridge or is positively connected.
5. Klebefluidausgabevorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Stempel am Kolben angreift.5. Adhesive fluid dispensing device according to one of claims 1 to 4, characterized in that the stamp engages the piston.
6. Klebefluidausgabevorrichtung nach einem der Ansprüche 1.bis 5, dadurch gekennzeichnet, dass dem Stempel ein pistolen- und/oder zangenartiger Griff zugeordnet ist. 6. Adhesive fluid dispensing device according to one of claims 1 to 5, characterized in that a pistol-like and / or pliers-like handle is assigned to the stamp.
7. Klebefluidausgabevorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Heizpatrone um die Kartusche herum angeordnet ist.7. adhesive fluid dispensing device according to one of claims 1 to 6, characterized in that the heating cartridge is arranged around the cartridge.
8. Klebefluidvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Erwärmung des Kartuscheninhaltes von diametral entgegengesetzten Seiten erfolgt.8. adhesive fluid device according to one of claims 1 to 7, characterized in that the heating of the cartridge content takes place from diametrically opposite sides.
9. Klebefluidausgabevorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Heizpatrone die Klebefluidkartusche gegen Wärmeverluste isoliert und für das Trennen von einer Leistungsversorgung bei Klebefluidausgabe ausgebildet ist.9. adhesive fluid dispensing device according to one of claims 1 to 8, characterized in that the heating cartridge insulates the adhesive fluid cartridge against heat loss and is designed to separate from a power supply when dispensing adhesive fluid.
10. Klebefluidausgabevorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Leistungsversorgung durch elektrischen Strom erfolgt. 10. Adhesive fluid output device according to claim 9, characterized in that the power is supplied by electrical current.
EP04764865A 2003-09-04 2004-09-06 Adhesive-fluid dispenser Withdrawn EP1663511A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10341256A DE10341256A1 (en) 2003-09-04 2003-09-04 Adhesive fluid dispensing device has heating insert for adhesive fluid cartridge for heating adhesive fluid to temperature sufficient for plunger operation for adhesive fluid delivery point throughflow
PCT/EP2004/009916 WO2005023436A1 (en) 2003-09-04 2004-09-06 Adhesive-fluid dispenser

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EP1663511A1 true EP1663511A1 (en) 2006-06-07

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US (1) US20070007305A1 (en)
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CA (1) CA2537801A1 (en)
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CA2537801A1 (en) 2005-03-17
US20070007305A1 (en) 2007-01-11
DE10341256A1 (en) 2004-07-01
WO2005023436A1 (en) 2005-03-17

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