EP0423388A1 - Electrically heated glue - Google Patents

Electrically heated glue Download PDF

Info

Publication number
EP0423388A1
EP0423388A1 EP89119354A EP89119354A EP0423388A1 EP 0423388 A1 EP0423388 A1 EP 0423388A1 EP 89119354 A EP89119354 A EP 89119354A EP 89119354 A EP89119354 A EP 89119354A EP 0423388 A1 EP0423388 A1 EP 0423388A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
glue gun
guide channel
gun according
heater
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Withdrawn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
EP89119354A
Other languages
German (de)
French (fr)
Inventor
Heinrich W. Steinel
Heinz-Joachim Kroll
D.F. Dr. Schulze-Fröhlich
Arno Lassahn
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.)
Steinel Entwicklungs-Gmbh fur Elektrotechnik und Elektronik
Original Assignee
Steinel Entwicklungs-Gmbh fur Elektrotechnik und Elektronik
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 Steinel Entwicklungs-Gmbh fur Elektrotechnik und Elektronik filed Critical Steinel Entwicklungs-Gmbh fur Elektrotechnik und Elektronik
Priority to EP89119354A priority Critical patent/EP0423388A1/en
Publication of EP0423388A1 publication Critical patent/EP0423388A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • B05C17/00526—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 the material being supplied to the apparatus in a solid state, e.g. rod, and melted before application
    • 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
    • B05C17/00546—Details of the heating means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54

Definitions

  • the invention relates to an electrically heated glue gun according to the preamble of claim 1.
  • thermoplastic adhesive is pushed into the guide channel under slight pressure, heated in the metal block and ejected under the pressure exerted, usually by the thumb, from the nozzle screwed into the metal block and thus also heated. Since the thermoplastic adhesives normally used have a working temperature of approx. 230 o C and in the known glue guns the entire metal block of approx.
  • the present invention has for its object to provide an adhesive gun with low energy consumption. This object is achieved according to the present invention by the characterizing features of claim 1.
  • the arrangement of the electric heater directly in the guide channel of the adhesive and in the immediate nozzle area makes it possible to start the glue gun with a relatively low energy consumption just a few seconds after switching on, because the amount of thermoplastic adhesive that is heated up for operational readiness must be very low and the energy transfer from the radiator into the adhesive material takes place without additional heat-conducting bodies and thus with low heat capacity losses.
  • the preferred development according to claim 3 has the advantage that the entire nozzle area can be heated uniformly.
  • the development according to claim 5 ensures that the heating is brought up directly to the parts of the adhesive that are being carried out.
  • the development according to claim 6 prevents liquid adhesive from escaping to the rear and the adhesive sticking in the guide channel or jamming there.
  • the development according to claim 7 serves to limit the energy consumption to the case of need.
  • the essential parts of the glue gun consist of a central tube section 1, into which a nozzle 2 is inserted on one side and a guide tube 3 is inserted on the other side.
  • a sleeve 4 made of silicone rubber, which is provided with two spaced-apart annular lips 5.
  • the nozzle 2 is conical, its largest inside diameter being somewhat larger than the inside diameter of the guide tube 3. This largest diameter is equal to the inside diameter of the sleeve 4 made of silicone rubber, while the inside diameter of the lips 5 correspond to the inside diameter of the guide tube 3.
  • a hood 6 with a U-shaped cross section is inserted, which has a circular opening 9 with a diameter of approximately 2 mm at its foremost end.
  • the nozzle 2 and the hood 6 are made of metal, while the pipe section 1 and the guide tube 3 are preferably made of plastic, although metal tubes can also be used there.
  • the nozzle 2 is lined with a thin layer of mica insulation 7.
  • a spirally coiled heating wire 8 the electrical resistance of which is dimensioned with respect to the material used, its diameter and its length such that the total resistance at a given supply voltage provides the required heat output.
  • the end of the heating wire 8 assigned to the nozzle outlet side is bent in a U-shape and protrudes into the hood 6 in order to be able to sufficiently heat its interior and in particular the immediate area around the outlet opening 9.
  • the connection ends of the heating wire are led out of the nozzle in order to be connected to a suitable electrical energy source.
  • the glue gun is operated in the low-voltage range, for example from a battery or a rechargeable battery
  • the other end of the heating wire 8 is led through the nozzle wall, care must be taken to ensure that electrical insulation is present there.
  • the battery or the rechargeable battery can be accommodated in the handle (not shown) of the gun. It makes sense to accommodate the necessary electrical switch in this handle.
  • the fact that the glue gun is ready for operation just a few seconds after switching on opens up the possibility of switching the device off during work breaks.
  • the electrical switch can therefore be designed as a work button that connects the heating wire 8 only when necessary with the energy source.
  • the nozzle 2 with its hood 6 is filled with cooled thermoplastic adhesive material. So many glue sticks are inserted from behind through the guide tube 3 and into the silicone sleeve 4 that material can be pushed in with the thumb.
  • the heating wire 8 is heated over its entire length. It melts the material in the immediate area of the heating wire, whereby the melting takes place fastest where the heating wire is closest, namely in the front nozzle area and in the hood 6. If you now press on the inserted glue sticks from behind, it becomes easier Pressure is exerted on the already plastic material and the material is expelled at the nozzle opening, the part of the heating wire arranged in the immediate vicinity of the nozzle opening ensuring that the material is discharged at maximum temperature.
  • the liquefaction of the adhesive continues with increasing operation in the space adjacent to the nozzle 2 in the pipe section 1.
  • the front lip 5 on the sleeve 4 made of silicone rubber prevents liquid material from escaping to the rear. This lip 5 forms a barrier to the liquid adhesive. Since the liquid adhesive does not bond with the silicone rubber, it is ensured that, once the thermoplastic has cooled and restarted, the required pressure from the solid part of the adhesive material onto the already liquefied part immediately can be exercised.

Abstract

Glue gun having a guide channel (1, 2, 3) for thermoplastic plastic, a nozzle (2) for discharging the liquified plastic and an electrical resistance heating element (8) for melting the plastic, with the special feature that the heating element (8) is arranged directly in the guide channel (1, 2, 3) and in the direct area of the nozzle (2) in order to shorten the heating-up time and to minimise energy consumption. <IMAGE>

Description

Die Erfindung bezieht sich auf eine elektrisch beheizte Klebepistole nach dem Oberbegriff des Anspruchs 1.The invention relates to an electrically heated glue gun according to the preamble of claim 1.

Bekannte Klebepistolen dieser Art weisen üblicherweise einen Metallkörper auf, in dem zwei zueinander parallele Kanäle ausgebildet sind. Der eine Kanal dient zur Aufnahme eines patronenförmigen elektrischen Heizkörpers, während der andere Kanal als Führungskanal für den thermoplastischen Kunststoff ausgebildet ist und an seinem einen Ende mit einer Düse abgeschlossen ist. Der thermoplastische Kleber wird dabei unter leichtem Druck in den Führungskanal eingeschoben, in dem Metallblock aufgeheizt und unter dem ausgeübten Druck, meist durch den Daumen, aus der in den Metallblock eingeschraubten und damit ebenfalls beheizten Düse ausgestoßen. Da die normalerweise verwendeten thermoplastischen Kleber eine Arbeitstemperatur von ca. 230oC besitzen und bei den bekannten Klebepistolen der gesamte Metallblock von ca. 5 cm Länge und der darin eingeschlossene Kleber auf diese Temperatur aufgeheizt verden müssen, liegt einerseits der Energiebedarf relativ hoch und es beträgt die Aufheizzeit unangenehm lange. Auch wenn bei netzbetriebenen Klebepistolen der Energiebedarf eine nur untergeordnete Rolle spielt, sind die bekannten Klebepistolen für den Batterie- oder Akkubetrieb ungeeignet. Der Akkubetrieb wäre aber wünschenswert, um die Klebepistole unabhängig vom Netz und ohne das beim Hantieren lästige Netzkabel betreiben zu können.Known glue guns of this type usually have a metal body in which two parallel channels are formed. One channel is used to hold a cartridge-shaped electric heater, while the other channel is designed as a guide channel for the thermoplastic and is closed at one end with a nozzle. The thermoplastic adhesive is pushed into the guide channel under slight pressure, heated in the metal block and ejected under the pressure exerted, usually by the thumb, from the nozzle screwed into the metal block and thus also heated. Since the thermoplastic adhesives normally used have a working temperature of approx. 230 o C and in the known glue guns the entire metal block of approx. 5 cm in length and the adhesive enclosed therein must be heated to this temperature, on the one hand the energy requirement is relatively high and it is the heating-up time is uncomfortably long. Even if the energy requirement plays only a minor role in the case of mains-operated glue guns, the known glue guns are unsuitable for battery or rechargeable battery operation. Battery operation would be desirable in order to be able to operate the glue gun independently of the mains and without the annoying mains cable when handling.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Klebepistole mit geringem Energiebedarf anzugeben. Diese Aufgabe wird gemäß der vorliegenden Erfindung durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.The present invention has for its object to provide an adhesive gun with low energy consumption. This object is achieved according to the present invention by the characterizing features of claim 1.

Durch die Anordnung des elektrischen Heizkörpers unmittelbar im Führungskanal des Klebers und im unmittelbaren Düsenbereich wird die Möglichkeit geschaffen, die Klebepistole bei relativ geringer Energieaufnahme bereits wenige Sekunden nach dem Einschalten in Betrieb nehmen zu können, weil die Menge an thermoplastischem Kleber, die zur Betriebsbereitschaft aufgeheizt werden muß, sehr gering ist und die Energieübergabe vom Heizkörper in das Klebematerial ohne zusätzliche Wärmeleitkörper und damit mit geringen Wärmekapazitätsverlusten erfolgt.The arrangement of the electric heater directly in the guide channel of the adhesive and in the immediate nozzle area makes it possible to start the glue gun with a relatively low energy consumption just a few seconds after switching on, because the amount of thermoplastic adhesive that is heated up for operational readiness must be very low and the energy transfer from the radiator into the adhesive material takes place without additional heat-conducting bodies and thus with low heat capacity losses.

Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.Advantageous further developments can be found in the subclaims.

Durch die konische Ausbildung des Innenraums der Düse gemäß Anspruch 2 wird dort ausreichender Raum geschaffen, um den Heizkörper unterzubringen, die Wärmekapazitäten, die zum Aufheizen erforderlich sind, auf einem Minimum gehalten und trotzdem dafür Sorge getragen, daß der noch feste Teil des Kleberstabs auf den bereits verflüssigten Teil gedrückt werden kann, um ein kontinuierliches Nachführen zu gewährleisten.Due to the conical design of the interior of the nozzle according to claim 2, sufficient space is created to accommodate the radiator, the heat capacities required for heating are kept to a minimum and still ensure that the still solid part of the adhesive rod on the already liquefied part can be pressed to ensure continuous tracking.

Die bevorzugte Weiterbildung nach Anspruch 3 hat den Vorteil, daß der gesamte Düsenbereich gleichmäßig aufgeheizt werden kann.The preferred development according to claim 3 has the advantage that the entire nozzle area can be heated uniformly.

Die bevorzugte Weiterbildung nach Anspruch 4 führt zu einer deutlichen Verringerung des Leistungsbedarfs im Betrieb.The preferred further development according to claim 4 leads to a significant reduction in the power requirement in operation.

Die Weiterbildung nach Anspruch 5 gewährleistet, daß die Heizung bis unmittelbar an die Teile des Klebers herangeführt wird, die gerade ausgetragen werden.The development according to claim 5 ensures that the heating is brought up directly to the parts of the adhesive that are being carried out.

Die Weiterbildung nach Anspruch 6 verhindert, daß flüssiger Kleber nach hinten austritt und der Kleber im Führungskanal verklebt oder sich dort verklemmt.The development according to claim 6 prevents liquid adhesive from escaping to the rear and the adhesive sticking in the guide channel or jamming there.

Die Weiterbildung nach Anspruch 7 dient dazu, die Energieaufnahme auf den Bedarfsfall zu beschränken.The development according to claim 7 serves to limit the energy consumption to the case of need.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird die Erfindung im folgenden näher erläutert.

  • Die einzige in der Zeichnung dargestellte Figur zeigt eine Klebepistole mit den erfindungswesentlichen Merkmalen im Querschnitt.
Based on an embodiment shown in the drawing, the invention is explained in more detail below.
  • The only figure shown in the drawing shows a glue gun with the features essential to the invention in cross section.

Die wesentlichen Teile der Klebepistole bestehen aus einem mittlerem Rohrstück 1, in das auf der einen Seite eine Düse 2 und auf der anderen Seite ein Führungsrohr 3 eingesetzt sind. Im mittleren Rohrstück 1 befindet sich eine Hülse 4 aus Silikongummi, die mit zwei voneinander beabstandeten ringförmigen Lippen 5 versehen ist. Die Düse 2 ist konisch ausgebildet, wobei ihr größter Innendurchmesser etwas größer ist als der Innendurchmesser des Führungsrohrs 3. Dieser größte Durchmesser ist gleich dem Innendurchmesser der Hülse 4 aus Silikongummi, während die Innendurchmesser der Lippen 5 dem Innendurchmesser des Führungsrohrs 3 entsprechen. In den vordersten Teil der Düse 2 ist eine im Querschnitt U-förmige Haube 6 eingesetzt, die an ihrem vordersten Ende eine kreisförmige öffnung 9 mit einem Durchmesser von etwa 2 mm aufweist. Die Düse 2 und die Haube 6 bestehen aus Metall, während das Rohrstück 1 und das Führungsrohr 3 vorzugsweise aus Kunststoff bestehen, obgleich auch dort Metallrohre einsetzbar sind. Die Düse 2 ist mit einer dünnen Schicht Mica-Isolierung 7 ausgekleidet. In der Düse 2 liegt ein spiralförmig gewendelter Heizdraht 8, dessen elektrischer Widerstandswert bezüglich des verwendeten Materials, seines Durchmessers und seiner Länge derart dimensioniert ist, daß der Gesamtwiderstand bei vorgegebener Anschlußspannung die erforderliche Wärmeleistung aufbringt. Das der Düsenaustrittsseite zugeordnete Ende des Heizdrahts 8 ist U-förmig gebogen und ragt in die Haube 6 hinein, um auch dessen Innenraum und insbesondere den unmittelbaren Bereich um die Austrittsöffnung 9 ausreichend erwärmen zu können. Die Anschlußenden des Heizdrahtes sind aus der Düse herausgeführt, um mit einer geeigneten elektrischen Energiequelle verbunden zu werden. Für den Fall, daß die Klebepistole im Niedervoltbereich, beispielsweise aus einer Batterie oder einem Akku betrieben wird, ist es vorteilhaft das eine Ende des Heizdrahtes unmittelbar mit der metallischen Düse 2 zu verbinden und die Düse 2 als Stromleiter zu benutzen. Für den Fall, daß man, wie dargestellt, das andere Ende des Heizdrahtes 8 durch die Düsenwandung führt, muß allerdings dort dafür gesorgt werden, daß eine elektrische Isolation vorhanden ist.The essential parts of the glue gun consist of a central tube section 1, into which a nozzle 2 is inserted on one side and a guide tube 3 is inserted on the other side. In the middle pipe section 1 there is a sleeve 4 made of silicone rubber, which is provided with two spaced-apart annular lips 5. The nozzle 2 is conical, its largest inside diameter being somewhat larger than the inside diameter of the guide tube 3. This largest diameter is equal to the inside diameter of the sleeve 4 made of silicone rubber, while the inside diameter of the lips 5 correspond to the inside diameter of the guide tube 3. In the foremost part of the nozzle 2, a hood 6 with a U-shaped cross section is inserted, which has a circular opening 9 with a diameter of approximately 2 mm at its foremost end. The nozzle 2 and the hood 6 are made of metal, while the pipe section 1 and the guide tube 3 are preferably made of plastic, although metal tubes can also be used there. The nozzle 2 is lined with a thin layer of mica insulation 7. In the nozzle 2 is a spirally coiled heating wire 8, the electrical resistance of which is dimensioned with respect to the material used, its diameter and its length such that the total resistance at a given supply voltage provides the required heat output. The end of the heating wire 8 assigned to the nozzle outlet side is bent in a U-shape and protrudes into the hood 6 in order to be able to sufficiently heat its interior and in particular the immediate area around the outlet opening 9. The connection ends of the heating wire are led out of the nozzle in order to be connected to a suitable electrical energy source. In the event that the glue gun is operated in the low-voltage range, for example from a battery or a rechargeable battery, it is advantageous to connect one end of the heating wire directly to the metallic nozzle 2 and to use the nozzle 2 as a current conductor. In the event that, as shown, the other end of the heating wire 8 is led through the nozzle wall, care must be taken to ensure that electrical insulation is present there.

Beim Betrieb der Klebepistole durch eine Batterie oder einen Akku, kann die Batterie oder der Akku im (nicht dargestellten) Handgriff der Pistole untergebracht werden. Dabei bietet es sich an, in diesem Handgriff auch den erforderlichen elektrischen Schalter unterzubringen. Dadurch, daß die Klebepistole bereits wenige Sekunden nach dem Einschalten betriebsbereit ist, wird die Möglichkeit eröffnet, das Gerät in den Arbeitspausen abzuschalten. Der elektrische Schalter kann deshalb als Arbeitstaste ausgebildet sein, die den Heizdraht 8 nur im Bedarfsfall mit der Energiequelle verbindet.When the glue gun is operated by a battery or a rechargeable battery, the battery or the rechargeable battery can be accommodated in the handle (not shown) of the gun. It makes sense to accommodate the necessary electrical switch in this handle. The fact that the glue gun is ready for operation just a few seconds after switching on opens up the possibility of switching the device off during work breaks. The electrical switch can therefore be designed as a work button that connects the heating wire 8 only when necessary with the energy source.

Im folgenden wird die Arbeitsweise des Geräts kurz erläutert.The operation of the device is briefly explained below.

Im erkalteten Zustand des Geräts ist die Düse 2 mit ihre Haube 6 mit erkaltetem thermoplastischen Klebematerial ausgefüllt. Von hinten sind durch das Führungsrohr 3 und in die Silikonmanschette 4 so viele Klebesticks eingeführt, daß man mit dem Daumen Material nachschieben kann. Mit dem Einschalten des Geräts wird der Heizdraht 8 auf seiner ganzen Länge erwärmt. Es schmilzt das Material zunächst im unmittelbaren Bereich des Heizdrahtes, wobei das Aufschmelzen dort am schnellsten vor sich geht, wo der Heizdraht am dichtesten liegt, nämlich im vorderen Düsenbereich und in der Haube 6. Drückt man nun von hinten auf die eingeführten Klebesticks, wird leichter Druck auf das bereits plastische Material ausgeübt und das Material wird an der Düsenöffnung ausgestoßen, wobei der in unmittelbarer Nähe der Düsenöffnung angeordnete Teil des Heizdrahtes dafür sorgt, daß das Material mit maximaler Temperatur ausgetragen wird. Die Verflüssigung des Klebers setzt sich mit zunehmendem Betrieb in den zur Düse 2 angrenzenden Raum im Rohrstück 1 fort. Die vordere Lippe 5 an der Hülse 4 aus Silikongummi verhindert, daß flüssiges Material nach hinten austritt. Diese Lippe 5 bildet eine Sperre für den flüssigen Kleber. Da sich der flüssige Kleber nicht mit dem Silikongummi verbindet, wird gewährleistet, daß nach dem Erkalten des Thermoplasts und der Wiederinbetriebnahme der erforderliche Druck von dem festen Teil des Klebematerials auf den bereits verflüssigten Teil sofort ausgeübt werden kann.In the cooled state of the device, the nozzle 2 with its hood 6 is filled with cooled thermoplastic adhesive material. So many glue sticks are inserted from behind through the guide tube 3 and into the silicone sleeve 4 that material can be pushed in with the thumb. When the device is switched on, the heating wire 8 is heated over its entire length. It melts the material in the immediate area of the heating wire, whereby the melting takes place fastest where the heating wire is closest, namely in the front nozzle area and in the hood 6. If you now press on the inserted glue sticks from behind, it becomes easier Pressure is exerted on the already plastic material and the material is expelled at the nozzle opening, the part of the heating wire arranged in the immediate vicinity of the nozzle opening ensuring that the material is discharged at maximum temperature. The liquefaction of the adhesive continues with increasing operation in the space adjacent to the nozzle 2 in the pipe section 1. The front lip 5 on the sleeve 4 made of silicone rubber prevents liquid material from escaping to the rear. This lip 5 forms a barrier to the liquid adhesive. Since the liquid adhesive does not bond with the silicone rubber, it is ensured that, once the thermoplastic has cooled and restarted, the required pressure from the solid part of the adhesive material onto the already liquefied part immediately can be exercised.

Claims (7)

1. Klebepistole, mit einem Führungskanal (1, 2, 3) für thermoplastischen Kunststoff, einer Düse (2) zum Austragen des verflüssigten Kunststoffs und einem elektrischen Widerstands-Heizkörper (8) zum Schmelzen des Kunststoffs, dadurch gekennzeichnet, daß der Heizkörper (8) unmittelbar im Führungskanal (1, 2, 3) und im Bereich der Düse (2) angeordnet ist.1. glue gun, with a guide channel (1, 2, 3) for thermoplastic, a nozzle (2) for discharging the liquefied plastic and an electrical resistance heater (8) for melting the plastic, characterized in that the heater (8 ) is arranged directly in the guide channel (1, 2, 3) and in the region of the nozzle (2). 2. Klebepistole nach Anspruch 1, dadurch gekennzeichnet, daß Die Düse (2) von ihrer Öffnung zur Verbindung mit dem Führungskanal (1, 2, 3) konisch ausgebildet ist und der Heizkörper (8) in diesem Bereich angeordnet ist.2. Glue gun according to claim 1, characterized in that the nozzle (2) from its opening for connection to the guide channel (1, 2, 3) is conical and the heater (8) is arranged in this area. 3. Klebepistole nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Heizkörper als Heizspirale (8) ausgebildet ist.3. Glue gun according to claim 1 or 2, characterized in that the heater is designed as a heating coil (8). 4. Klebepistole nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Innenraum der Düse (2) mit einer Wärmeisolation (7) versehen ist.4. Glue gun according to one of claims 1 to 3, characterized in that the interior of the nozzle (2) is provided with thermal insulation (7). 5. Klebepistole nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Düse (2) mit einem haubenförmigen Fortsatz (6) versehen ist, in dessen äußerer Berandung die Düsenöffnung (9) ausgebildet ist und daß in dem Fortsatz (6) ein Teil des Heizkörpers (8) bis in unmittelbare Nähe zur Austrittsöffnung herangeführt ist.5. Glue gun according to one of claims 1 to 4, characterized in that the nozzle (2) is provided with a hood-shaped extension (6), in the outer edge of which the nozzle opening (9) is formed and that in the extension (6) Part of the radiator (8) is brought up in close proximity to the outlet opening. 6. Klebepistole nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß in dem an die Düse (2) angrenzenden Bereich des Führungskanals (3) eine Hülse (4) aus Silikongummi mit wenigstens einer umlaufenden Dichtlippe (5) vorgesehen ist.6. Glue gun according to one of claims 1 to 5, characterized in that a sleeve (4) made of silicone rubber with at least one circumferential sealing lip (5) is provided in the region of the guide channel (3) adjacent to the nozzle (2). 7. Klebepistole nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß zur Stromversorgung des Heizkörpers (8) wenigstens eine Batterie oder ein Akku vorgesehen ist, und daß ein Tastenschalter vorhanden ist, mit dem die Stromversorgung nur im Bedarfsfall einschaltbar ist.7. Glue gun according to one of claims 1 to 6, characterized in that at least one battery or a rechargeable battery is provided for the power supply of the radiator (8), and that a key switch is provided with which the power supply can only be switched on when necessary.
EP89119354A 1989-10-18 1989-10-18 Electrically heated glue Withdrawn EP0423388A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP89119354A EP0423388A1 (en) 1989-10-18 1989-10-18 Electrically heated glue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89119354A EP0423388A1 (en) 1989-10-18 1989-10-18 Electrically heated glue

Publications (1)

Publication Number Publication Date
EP0423388A1 true EP0423388A1 (en) 1991-04-24

Family

ID=8202038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119354A Withdrawn EP0423388A1 (en) 1989-10-18 1989-10-18 Electrically heated glue

Country Status (1)

Country Link
EP (1) EP0423388A1 (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0699484A3 (en) * 1994-08-02 1996-09-04 Steinel Gmbh & Co Kg Apparatus for melting and metered dispensing of thermoplastic adhesive
FR2753888A1 (en) * 1996-10-02 1998-04-03 Seb Sa HAND MELT DISPENSER, IN PARTICULAR HAIR REMOVAL
US5747102A (en) * 1995-11-16 1998-05-05 Nordson Corporation Method and apparatus for dispensing small amounts of liquid material
EP0860212A1 (en) * 1997-02-21 1998-08-26 Sofragraf Industries Hot melt adhesive applicator and adhesive stick for feeding this applicator
WO2000012223A1 (en) * 1998-08-26 2000-03-09 Rocafix Hotmelt applicator and adhesive stick for supplying same
US6253957B1 (en) 1995-11-16 2001-07-03 Nordson Corporation Method and apparatus for dispensing small amounts of liquid material
US6267266B1 (en) 1995-11-16 2001-07-31 Nordson Corporation Non-contact liquid material dispenser having a bellows valve assembly and method for ejecting liquid material onto a substrate
US6794612B2 (en) * 2000-04-05 2004-09-21 Furtwaengler Bernhard Modeling device
EP2277632A1 (en) * 2009-07-21 2011-01-26 Fundació Privada Ascamm Device for selectively depositing molten plastic materials
ES2357265A1 (en) * 2008-05-14 2011-04-20 Jesus Francisco Barberan Latorre Fuser for thermophusable fuel feeders (Machine-translation by Google Translate, not legally binding)
US20120070523A1 (en) * 2010-09-22 2012-03-22 Stratasys, Inc. Liquefier assembly for use in extrusion-based additive manufacturing systems
US8815141B2 (en) 2010-09-22 2014-08-26 Stratasys, Inc. Method for building three-dimensional models with extrusion-based additive manufacturing systems
US9050753B2 (en) 2012-03-16 2015-06-09 Stratasys, Inc. Liquefier assembly having inlet liner for use in additive manufacturing system
CN104713755A (en) * 2015-01-12 2015-06-17 苏州赛力菲陶纤有限公司 Multifilament tensile test sample preparation apparatus
EP2988572A1 (en) * 2008-03-06 2016-02-24 STEINEL GmbH Apparatus for applying adhesives
CN107159530A (en) * 2017-06-16 2017-09-15 奉化市威优特电器有限公司 A kind of heater of thermosol gelgun
DE102016008847A1 (en) 2016-07-23 2018-01-25 Florian Eichenhofer glue gun
CN114173941A (en) * 2019-08-02 2022-03-11 诺信公司 Dispensing tip and method of making a dispensing tip

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH231306A (en) * 1941-12-22 1944-03-15 Ortmann Hans Device for modeling with wax and other substances that soften when heated.
US3430816A (en) * 1967-08-17 1969-03-04 Daubert Chem Co Apparatus for dispensing adhesive materials
DE2248699A1 (en) * 1972-10-04 1974-04-18 Volker Frerk DEVICE FOR THE PROCESSING OF MELT ADHESIVES
WO1989001367A1 (en) * 1987-08-07 1989-02-23 Black & Decker Inc. Cordless adhesive dispensing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH231306A (en) * 1941-12-22 1944-03-15 Ortmann Hans Device for modeling with wax and other substances that soften when heated.
US3430816A (en) * 1967-08-17 1969-03-04 Daubert Chem Co Apparatus for dispensing adhesive materials
DE2248699A1 (en) * 1972-10-04 1974-04-18 Volker Frerk DEVICE FOR THE PROCESSING OF MELT ADHESIVES
WO1989001367A1 (en) * 1987-08-07 1989-02-23 Black & Decker Inc. Cordless adhesive dispensing system

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0699484A3 (en) * 1994-08-02 1996-09-04 Steinel Gmbh & Co Kg Apparatus for melting and metered dispensing of thermoplastic adhesive
US5725127A (en) * 1994-08-02 1998-03-10 Steinel Gmbh & Co. Kg Device for melting and dispensing metered amounts of thermoplastic adhesive
KR100319432B1 (en) * 1994-08-02 2002-07-31 스타이넬 게엠베하 운트 컴파니 카게 Apparatus for melting and dispensing measured amounts of thermoplastic resin adhesive
US6253957B1 (en) 1995-11-16 2001-07-03 Nordson Corporation Method and apparatus for dispensing small amounts of liquid material
US5747102A (en) * 1995-11-16 1998-05-05 Nordson Corporation Method and apparatus for dispensing small amounts of liquid material
US6267266B1 (en) 1995-11-16 2001-07-31 Nordson Corporation Non-contact liquid material dispenser having a bellows valve assembly and method for ejecting liquid material onto a substrate
EP0834266A1 (en) * 1996-10-02 1998-04-08 Seb S.A. Hand held distributor for thermofusible material, in particular for depilatory wax
FR2753888A1 (en) * 1996-10-02 1998-04-03 Seb Sa HAND MELT DISPENSER, IN PARTICULAR HAIR REMOVAL
EP0860212A1 (en) * 1997-02-21 1998-08-26 Sofragraf Industries Hot melt adhesive applicator and adhesive stick for feeding this applicator
FR2759925A1 (en) * 1997-02-21 1998-08-28 Sofragraf Ind APPLIATOR OF HEAT-MELT ADHESIVE AND ADHESIVE STICK DESIGNED TO SUPPLY SUCH AN APPLICATOR
WO2000012223A1 (en) * 1998-08-26 2000-03-09 Rocafix Hotmelt applicator and adhesive stick for supplying same
CN1098734C (en) * 1998-08-26 2003-01-15 罗卡菲克斯公司 Hotmelt applicator and adhesive stick for supplying same
US6794612B2 (en) * 2000-04-05 2004-09-21 Furtwaengler Bernhard Modeling device
EP2988572A1 (en) * 2008-03-06 2016-02-24 STEINEL GmbH Apparatus for applying adhesives
ES2357265A1 (en) * 2008-05-14 2011-04-20 Jesus Francisco Barberan Latorre Fuser for thermophusable fuel feeders (Machine-translation by Google Translate, not legally binding)
EP2277632A1 (en) * 2009-07-21 2011-01-26 Fundació Privada Ascamm Device for selectively depositing molten plastic materials
WO2012040150A1 (en) * 2010-09-22 2012-03-29 Stratasys, Inc. Liquefier assembly for use in extrusion-based additive manufacturing systems
US8647098B2 (en) 2010-09-22 2014-02-11 Stratasys, Inc. Liquefier assembly for use in extrusion-based additive manufacturing systems
US8815141B2 (en) 2010-09-22 2014-08-26 Stratasys, Inc. Method for building three-dimensional models with extrusion-based additive manufacturing systems
US9022771B2 (en) 2010-09-22 2015-05-05 Stratasys, Inc. Liquefier assembly for use in extrusion-based additive manufacturing systems
US20120070523A1 (en) * 2010-09-22 2012-03-22 Stratasys, Inc. Liquefier assembly for use in extrusion-based additive manufacturing systems
US9550327B2 (en) 2010-09-22 2017-01-24 Stratasys, Inc. Liquefier assembly for use in extrusion-based additive manufacturing systems
US9050753B2 (en) 2012-03-16 2015-06-09 Stratasys, Inc. Liquefier assembly having inlet liner for use in additive manufacturing system
CN104713755A (en) * 2015-01-12 2015-06-17 苏州赛力菲陶纤有限公司 Multifilament tensile test sample preparation apparatus
CN104713755B (en) * 2015-01-12 2018-03-20 苏州赛力菲陶纤有限公司 A kind of multifilament tensile testing samples preparation facilities
DE102016008847A1 (en) 2016-07-23 2018-01-25 Florian Eichenhofer glue gun
WO2018019398A1 (en) 2016-07-23 2018-02-01 Martin Eichenhofer Glue gun
US11141756B2 (en) 2016-07-23 2021-10-12 9T Labs Ag Glue gun
CN107159530A (en) * 2017-06-16 2017-09-15 奉化市威优特电器有限公司 A kind of heater of thermosol gelgun
US20180361421A1 (en) * 2017-06-16 2018-12-20 Fenghua Weilder Electric Appliance Co., Ltd. Heating device for hot melt glue gun
US11813638B2 (en) * 2017-06-16 2023-11-14 Ningbo Weilder Electric Appliance Co., Ltd. Heating device for hot melt glue gun
CN114173941A (en) * 2019-08-02 2022-03-11 诺信公司 Dispensing tip and method of making a dispensing tip
CN114173941B (en) * 2019-08-02 2023-06-09 诺信公司 Dispensing tip and method of manufacturing a dispensing tip

Similar Documents

Publication Publication Date Title
EP0423388A1 (en) Electrically heated glue
DE2940298C2 (en) Electric heating device for curling irons
DE102008016213A1 (en) Applicator device for applying a cosmetic and use of such a device
DE2614433B2 (en) Self-regulating heating element
DE4231826A1 (en) Device for atomizing liquids
DE2716862C3 (en) Galvanic battery made up of a large number of cells that can be quickly charged and discharged
DE2604847C2 (en) Method and device for producing a plastic part with a resistance element
EP0158097A1 (en) Device for spraying melted glue
WO1990010264A1 (en) Heating body for electrical heating appliances, in particular for a hot-melt adhesive gun, with at least one temperature-dependent resistor
DE2227118C3 (en) Inert gas welding gun with cooling by the inert gas
US20070007305A1 (en) Adhesive-fluid dispenser
EP2253180B1 (en) Apparatus for applying adhesives
DE637131C (en) Coupling socket made of soft rubber
DE4214813C2 (en) Hot air manual welding machine for manual welding of thermoplastic materials
DE3535831A1 (en) HAIRSTYLE
DE102007043700A1 (en) Hand device for e.g. igniting wood charcoal, has gas tank connected with mouth piece embedded in protection cap of housing through gas supply tube and connected with gas igniter provided on outside of housing pipe
EP2298669A1 (en) Cartridge with integrated device for heating a melting adhesive and method for using the cartridge
DE908041C (en) Glow igniter for igniting electric gas or vapor discharge lamps
DE8034755U1 (en) DEVICE FOR LIQUIDIFYING A MELTABLE ADHESIVE
DE102022211276A1 (en) Adhesive device
DE10052281A1 (en) Ice scraper device for removing ice from a surface
DE3302740A1 (en) Circuit arrangement for indicating the residual heat of a heat source after switching off the electrical heat generator
DE102022211279A1 (en) Adhesive device
DE8228634U1 (en) GUN-SHAPED HAND TOOL
DE2558314C2 (en) Device for connecting two thermocouple wires of a thermocouple by means of arc welding under protective gas

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19901227

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19910705