DE4119137C1 - Welding appts. for thermoplastic material - includes heatable advancing chamber, drive for an advancing element and air heater for pre-warmed air - Google Patents

Welding appts. for thermoplastic material - includes heatable advancing chamber, drive for an advancing element and air heater for pre-warmed air

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Publication number
DE4119137C1
DE4119137C1 DE4119137A DE4119137A DE4119137C1 DE 4119137 C1 DE4119137 C1 DE 4119137C1 DE 4119137 A DE4119137 A DE 4119137A DE 4119137 A DE4119137 A DE 4119137A DE 4119137 C1 DE4119137 C1 DE 4119137C1
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DE
Germany
Prior art keywords
air
drive
welding
advancing
blower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE4119137A
Other languages
German (de)
Inventor
Erich 5432 Wirges De Munsch
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.)
Munsch Chemie-Pumpen 5412 Ransbach-Baumbach De GmbH
Original Assignee
Munsch Chemie-Pumpen 5412 Ransbach-Baumbach De GmbH
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Priority to DE4119137A priority Critical patent/DE4119137C1/en
Application granted granted Critical
Publication of DE4119137C1 publication Critical patent/DE4119137C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B05C17/0053—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 the driving means for the material being manual, mechanical or electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/02—Small extruding apparatus, e.g. handheld, toy or laboratory extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/6801—Barrels or cylinders characterised by the material or their manufacturing process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B29C65/12—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined and welding bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A welding appts. for thermoplastic material, includes a heatable advancing chamber, a drive for an advancing element and an air heater for the prewarmed air. The drive is also coupled with a blower which feeds the air heater. The blower is pref. flanged axially onto the advancing element opposite end, and is driven by a drive shaft extension. The blower is pref. a radial blower. ADVANTAGE - The appts. is simple and does not suffer from the problems of existing welding units.ti

Description

Die Erfindung bezieht sich auf ein Schweißgerät gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a welding machine according to the Preamble of claim 1.

Derartige Schweißgeräte sind aus der DE-OS 28 23 171 und in einer Weiterentwicklung aus der DE-PS 38 08 723 bekannt.Such welding devices are from DE-OS 28 23 171 and known in a further development from DE-PS 38 08 723.

Diese Schweißgeräte werden für die unterschiedlichsten Schweißaufgaben verwendet und werden sowohl zum Verschweißen reinen Plattenmaterials als auch von Rohren verwendet. Obwohl diese Geräte schon sehr stark vereinfacht wurden und insbesondere bei Verwendung von Schweißdraht universell einsetzbar sind, ist die Zufuhr der Luft zum Lufterhitzer für die Vorwärmluft beim Schweißen über einen Schlauch von einem Kompressor recht hinderlich.These welding machines are for the most varied Welding tasks are used and are used both for welding pure sheet material as well as pipes. Even though these devices have been greatly simplified and especially universal when using welding wire can be used is the supply of air to the air heater for the preheating air when welding via a hose from quite a hindrance to a compressor.

Aufgabe der Erfindung ist es, diesen Mangel zu beseitigen.The object of the invention is to remedy this deficiency.

Dies wird mit dem kennzeichnenden Merkmal des Anspruchs gelöst. Dadurch daß das Schweißgerät mit seinem Antrieb zusätzlich ein Leistungsfähiges Gebläse antreibt, kann das Schweißgerät seine Vorwärmluft selbst erzeugen und ist somit frei von der Verbindung zu einem Kompressor. Dabei war die häufig notwendige lange Verbindungsleitung besonders hinderlich und führte zu hohen Druckabfällen, dadurch war es erforderlich, einen entsprechend starken Kompressor zu verwenden. Dadurch, daß das Gebläse nun unmittelbar am Schweißgerät angeflanscht ist, sind nur sehr kurze Luftwege mit optimaler Luftführung notwendig, wodurch ein weitaus geringerer Leistungsbedarf besteht. Das relativ geringere Mehrgewicht des Schweißgerätes wird bei weitem dadurch aufgewogen, daß kein Luftzuführungsschlauch mehr mitgezogen werden muß. Zudem wird die Führung des Schweißgerätes beim Arbeiten derartig stark verbessert, daß ein deutlich sichtbarer Qualitätsgewinn bei den Schweißnähten erzielt wird.This is with the characteristic feature of the claim solved. Characterized in that the welding machine with its drive that can also be driven by a powerful blower Welder generate its preheating air itself and is therefore free from the connection to a compressor. It was there the long connection line that is often necessary is particularly cumbersome and caused high pressure drops, which made it necessary to use a suitably strong compressor. Thereby, that the fan is now flanged directly to the welding machine are only very short airways with optimal air flow necessary, which means a much lower power requirement consists. The relatively lower additional weight of the welding machine is outweighed by the fact that no Air supply hose must be pulled more. In addition  becomes the guidance of the welding machine when working greatly improved that a clearly visible quality gain is achieved with the weld seams.

Weitere Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen. So wird durch die axiale Anflanschung des Gebläses eine besonders schlanke Bauform des Schweißgerätes erreicht.Further embodiments of the invention are the subclaims refer to. This is due to the axial flange mounting of the fan achieved a particularly slim design of the welding machine.

Die Ausbildung des Gebläses als Radialgebläse und insbesondere die Verwendung von Rotationsbremsstegen bringt einen hohen Wirkungsgrad. Weiter kann über dieses Gebläse zusätzlich die Kühlung des Antriebs verbessert werden. Da für derartige Schweißgeräte häufig serienmäßige Bohrmaschinen als Antrieb verwendet werden, ist die in diesen Maschinen eingebaute Kühlung bei Dauerbetrieb als Schweißgerät nicht ausreichend. Die Versorgung mit zusätzlicher Kühlluft bringt eine höhere Zuverlässigkeit des Schweißgerätes. Desweiteren kann Luft aus diesem Gebläse zur Kühlung der Lagerung des Förderelementes beziehungsweise des Einlaßbereiches des Schweißmaterials, insbesondere bei Verwendung von Schweißdraht verwendet werden. Eine weiter Maßnahme zur Verkleinerung des Gerätes liegt darin, daß die Gebläseluft zunächst zur Antriebs- und Lagerkühlung verwendet wird, um dann vorgewärmt in den Lufterhitzer geführt zu werden. Dadurch wird eine zusätzliche Steigerung des Wirkungsgrades erreicht.The design of the blower as a radial blower and in particular the use of rotary brake bars brings a high Efficiency. Furthermore, this blower can also be used the cooling of the drive can be improved. As for such Welding machines often have standard drilling machines as drives used is the one built into these machines Cooling during continuous operation as a welding machine is not sufficient. The supply of additional cooling air brings a higher Reliability of the welding machine. Furthermore, air can from this blower for cooling the storage of the conveyor element or the inlet area of the welding material, be used especially when using welding wire. Another measure to downsize the device is in that the fan air is first used to drive and Bearing cooling is used to then preheated in the Air heater to be led. This creates an additional Efficiency increased.

Einige Ausführungsbeispiele der Erfindung werden im folgenden an Hand der Zeichnungen näher erläutert.Some embodiments of the invention are as follows explained in more detail with reference to the drawings.

Es zeigen:Show it:

Fig. 1 eine Gesamtansicht eines Schweißgerätes teilweise geschnitten, Fig. 1 is an overall view of a welding apparatus partly in section,

Fig. 2 eine erste Alternativlösung und Fig. 2 shows a first alternative solution and

Fig. 3 eine weitere Alternativlösung in gleicher Ansicht. Fig. 3 shows another alternative solution in the same view.

Nach Fig. 1 besitzt ein Schweißgerät 1 eine längliche Förderkammer 2 in der ein Förderelement 3 angeordnet ist. Das Förderelement 3 ist als Schnecke ausgebildet und am Anfang mit einem nicht näher dargestellten Zerkleinerungsorgan versehen.According to Fig. 1, a welding apparatus 1 has an elongated conveying chamber 2 in which a conveyor element 3 is arranged. The conveying element 3 is designed as a screw and at the beginning is provided with a comminution element (not shown in detail).

An ihrem Anfang weist die Förderkammer 2 eine Einlaßöffnung 4 für einen Schweißdraht auf. Natürlich kann anstelle des Schweißdrahtes insbesondere bei stationär eingesetzten Geräten ein Trichter zur Zufuhr von Granulatmaterial aufgesetzt sein.At the beginning, the delivery chamber 2 has an inlet opening 4 for a welding wire. Of course, instead of the welding wire, a funnel for supplying granular material can be attached, particularly in the case of stationary devices.

Die Förderkammer 2 ist von einer Bandheizung 5 umgeben. Am Auslaß 6 der Förderkammer 2 ist ein Schweißschuh 7 mit einer Stauplatte 8 vorgesehen.The conveyor chamber 2 is surrounded by a band heater 5 . A welding shoe 7 with a baffle plate 8 is provided at the outlet 6 of the delivery chamber 2 .

Das Förderelement 3 wird über ein Mehrganggetriebe 9 mit Leerlauf und einer Zwischenwelle 10 von einem Antrieb 11, in aller Regel eine abgeänderte Bohrmaschine, angetrieben.The conveying element 3 is driven by a drive 11 , usually a modified drilling machine, via a multi-speed transmission 9 with idling and an intermediate shaft 10 .

Am entgegengesetzten Ende 12 des Förderelementes 3 ist axial ein Gebläse 13 angeflanscht. Das Gebläse besteht aus einem ringförmigen Lufteinlaufkanal 14, in dem Rotationsbremsstege 15 angeordnet sind, einem Radiallaufrad 16 und einem Auslaufkanal 17. Angetrieben wird das Radiallaufrad direkt von der Ankerwelle 18 des Antriebs 11.At the opposite end 12 of the conveying element 3 , a fan 13 is flanged axially. The fan consists of an annular air inlet duct 14 , in which rotary brake webs 15 are arranged, a radial impeller 16 and an outlet duct 17 . The radial impeller is driven directly by the armature shaft 18 of the drive 11 .

Der Auslaufkanal 17 steht über eine kurze Luftleitung 19 direkt mit einem Lufterhitzer 20 in Verbindung. Der Lufterhitzer 20 endet vor dem Schweißschuh 7 in einer Luftdüse 21 und dient der Vorwärmung der zu verschweißenden Platten.The outlet duct 17 is connected directly to an air heater 20 via a short air line 19 . The air heater 20 ends in front of the welding shoe 7 in an air nozzle 21 and serves to preheat the plates to be welded.

Der Antrieb 11, im vorliegenden Fall ein Elektromotor wird von einem kleinen Lüfterrad 22 gekühlt. Von diesem Lüfterrad 22 zweigt eine Kühlluftzuführung 23 zu einem Kühlmantel 24 ab, der die Lagerung 25 des Förderelementes 3 sowie den Bereich der Einlaßöffnung 4 kühlt. Die Einlaßöffnung 4 wird deshalb sinnvollerweise gekühlt, um zu verhindern, daß beim Leerlauf des Schweißgerätes der Schweißdraht in der Einlaßöffnung 4 schmilzt und dadurch abreißt. Der Kühlmantel 24 hat freie Öffnungen nach außen.The drive 11 , in the present case an electric motor, is cooled by a small fan wheel 22 . From this fan wheel 22 branches off a cooling air supply 23 to a cooling jacket 24 , which cools the bearing 25 of the conveying element 3 and the area of the inlet opening 4 . The inlet opening 4 is therefore expediently cooled in order to prevent the welding wire in the inlet opening 4 from melting and thereby tearing when the welding machine is idling. The cooling jacket 24 has free openings to the outside.

Das Ausführungsbeispiel gemäß der Fig. 2 entspricht im wesentlichen dem Schweißgerät nach Fig. 1 im Grundaufbau. Abweichend davon ist von der Luftleitung 19 eine Zweigleitung 26 mit der Kühlluftzuführung 23 verbunden. Die restlichen Ausführungsdetails sind identisch dem Gerät nach Fig. 1.The basic embodiment of the exemplary embodiment according to FIG. 2 corresponds essentially to the welding device according to FIG. 1. In a departure from this, a branch line 26 is connected to the cooling air supply 23 from the air line 19 . The remaining design details are identical to the device according to FIG. 1.

Bei dem Ausführungsbeispiel gemäß der Fig. 3 ist der Auslaufkanal 17 des Gebläses 13 über eine Zwischenleitung 27 mit der Kühlluftzuführung 23 verbunden. Der Kühlmantelauslaß 28 wiederum ist über eine weitere Leitung 29 mit dem Lufterhitzer 20 verbunden. Dadurch erhält der Lufterhitzer 20 bereits vorgewärmte Luft, wodurch der Wirkungsgrad des Schweißgerätes weiter erhöht wird.In the exemplary embodiment according to FIG. 3, the outlet duct 17 of the fan 13 is connected to the cooling air supply 23 via an intermediate line 27 . The cooling jacket outlet 28 is in turn connected to the air heater 20 via a further line 29 . As a result, the air heater 20 already receives preheated air, which further increases the efficiency of the welding device.

Claims (4)

1. Schweißgerät zur Verarbeitung von thermoplastischem Kunststoffmaterial mit einer beheizbaren Förderkammer (2), einem Antrieb (11) für ein Förderelement (3) und einem Lufterhitzer (20) für die Vorwärmluft, dadurch gekennzeichnet, daß der Antrieb (11) zusätzlich mit einem Gebläse (13) zur Speisung des Lufterhitzers (20) gekoppelt ist.1. Welding machine for processing thermoplastic material with a heatable delivery chamber ( 2 ), a drive ( 11 ) for a delivery element ( 3 ) and an air heater ( 20 ) for the preheating air, characterized in that the drive ( 11 ) additionally with a blower ( 13 ) for feeding the air heater ( 20 ) is coupled. 2. Schweißgerät nach Anspruch 1, dadurch gekennzeichnet, daß das Gebläse (13) axial an das dem Förderelement (3) entgegengesetzte Ende (12) angeflanscht und von einer Verlängerung der Antrieb-Welle (18) angetrieben ist.2. Welding device according to claim 1, characterized in that the blower ( 13 ) is flanged axially to the end ( 12 ) opposite the conveying element ( 3 ) and is driven by an extension of the drive shaft ( 18 ). 3. Schweißgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Gebläse (13) als Radialgebläse ausgebildet ist.3. Welding device according to claim 1 or 2, characterized in that the fan ( 13 ) is designed as a radial fan. 4. Schweißgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Luftleitung (19) über eine Zweigleitung (26) mit der Kühlluftzuführung (23) verbunden ist.4. Welding device according to one of claims 1 to 3, characterized in that the air line ( 19 ) via a branch line ( 26 ) is connected to the cooling air supply ( 23 ).
DE4119137A 1991-06-11 1991-06-11 Welding appts. for thermoplastic material - includes heatable advancing chamber, drive for an advancing element and air heater for pre-warmed air Expired - Fee Related DE4119137C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4119137A DE4119137C1 (en) 1991-06-11 1991-06-11 Welding appts. for thermoplastic material - includes heatable advancing chamber, drive for an advancing element and air heater for pre-warmed air

Applications Claiming Priority (1)

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DE4119137A DE4119137C1 (en) 1991-06-11 1991-06-11 Welding appts. for thermoplastic material - includes heatable advancing chamber, drive for an advancing element and air heater for pre-warmed air

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DE4119137C1 true DE4119137C1 (en) 1993-02-25

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577078A2 (en) * 2004-03-15 2005-09-21 WEGENER GmbH Hand held welding tool for welding synthetic parts
EP1637234A1 (en) * 2004-09-08 2006-03-22 Leister Process Technologies Handheld extrusion welding device
DE102004043376B4 (en) * 2004-09-08 2008-06-12 Leister Process Technologies Hand extruder welder and method of operating a hand extruder welder
ES2360996A1 (en) * 2008-12-23 2011-06-13 Asociacion De Investigacion Metalurgica Del Noroeste Semiautomatic welding equipment by extrusion for thermoplastics. (Machine-translation by Google Translate, not legally binding)
EP2376273A1 (en) * 2009-01-10 2011-10-19 Dohle Extrusionstechnik GmbH Hand-held extruder comprising a handle for single-handed operation
RU198817U1 (en) * 2019-01-28 2020-07-29 Сергей Владимирович Матвеев Manual Welding Extruder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823171A1 (en) * 1978-05-27 1979-11-29 Erich Munsch Thermoplastic welder attachment - where welding wire supplied is cut up and moved by driven shaft in heated tube
DE3808723C1 (en) * 1988-03-16 1989-06-01 Munsch Chemie-Pumpen Gmbh, 5412 Ransbach-Baumbach, De Welding device
DE3833677C1 (en) * 1988-10-04 1989-07-27 Zinser-Schweisstechnik Gmbh & Co, 7333 Ebersbach, De

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823171A1 (en) * 1978-05-27 1979-11-29 Erich Munsch Thermoplastic welder attachment - where welding wire supplied is cut up and moved by driven shaft in heated tube
DE3808723C1 (en) * 1988-03-16 1989-06-01 Munsch Chemie-Pumpen Gmbh, 5412 Ransbach-Baumbach, De Welding device
DE3833677C1 (en) * 1988-10-04 1989-07-27 Zinser-Schweisstechnik Gmbh & Co, 7333 Ebersbach, De

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577078A2 (en) * 2004-03-15 2005-09-21 WEGENER GmbH Hand held welding tool for welding synthetic parts
EP1577079A2 (en) * 2004-03-15 2005-09-21 WEGENER GmbH Hand held welding tool for welding synthetic parts
EP1577079A3 (en) * 2004-03-15 2008-01-23 WEGENER GmbH Hand held welding tool for welding synthetic parts
EP1577078A3 (en) * 2004-03-15 2008-01-23 WEGENER GmbH Hand held welding tool for welding synthetic parts
EP1637234A1 (en) * 2004-09-08 2006-03-22 Leister Process Technologies Handheld extrusion welding device
US7374067B2 (en) 2004-09-08 2008-05-20 Leister Process Technologies Handheld extruder welding device
DE102004043376B4 (en) * 2004-09-08 2008-06-12 Leister Process Technologies Hand extruder welder and method of operating a hand extruder welder
ES2360996A1 (en) * 2008-12-23 2011-06-13 Asociacion De Investigacion Metalurgica Del Noroeste Semiautomatic welding equipment by extrusion for thermoplastics. (Machine-translation by Google Translate, not legally binding)
EP2376273A1 (en) * 2009-01-10 2011-10-19 Dohle Extrusionstechnik GmbH Hand-held extruder comprising a handle for single-handed operation
EP2376273B1 (en) * 2009-01-10 2015-09-16 Dohle Extrusionstechnik GmbH Hand-held extruder comprising a handle for single-handed operation
RU198817U1 (en) * 2019-01-28 2020-07-29 Сергей Владимирович Матвеев Manual Welding Extruder

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