DE2845652A1 - Hot air welding gun control - by air temp responsive PTC resistor controlling triac for heating element - Google Patents
Hot air welding gun control - by air temp responsive PTC resistor controlling triac for heating elementInfo
- Publication number
- DE2845652A1 DE2845652A1 DE19782845652 DE2845652A DE2845652A1 DE 2845652 A1 DE2845652 A1 DE 2845652A1 DE 19782845652 DE19782845652 DE 19782845652 DE 2845652 A DE2845652 A DE 2845652A DE 2845652 A1 DE2845652 A1 DE 2845652A1
- Authority
- DE
- Germany
- Prior art keywords
- heating element
- temp
- triac
- welding gun
- hot air
- 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- Withdrawn
Links
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/012—Soldering with the use of hot gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/04—Heating appliances
- B23K3/047—Heating appliances electric
- B23K3/0478—Heating appliances electric comprising means for controlling or selecting the temperature or power
-
- 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
- B29C66/73921—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 characterised by the materials of both parts being thermoplastics
-
- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
- B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
-
- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
- B29C66/9131—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the heat or the thermal flux, i.e. the heat flux
- B29C66/91311—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the heat or the thermal flux, i.e. the heat flux by measuring the heat generated by Joule heating or induction heating
- B29C66/91317—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the heat or the thermal flux, i.e. the heat flux by measuring the heat generated by Joule heating or induction heating by measuring the electrical resistance
-
- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
- B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
-
- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Control Of Resistance Heating (AREA)
- Thermistors And Varistors (AREA)
Abstract
Description
Beschreibung und Patentansprüche 2845652 Description and claims 2845652
Titel: Temperaturregelung von Heizelementen Anwendungsgebiet: Regeln von luftdurchströmten Heizelementen und Schutz der-- selben vor Übertemperatur, hier für Warmgasschweißgeräte.Title: Temperature control of heating elements Area of application: Control of heating elements through which air flows and protection of the same from excess temperature, here for hot gas welding machines.
Zweck: Die Leistung von Warmgasschweißgeräten in Abhängigkeit der Zuluftmenge ohne direkte Messung der Luftaustrittstemperatur zu regeln.Purpose: The performance of hot gas welding equipment as a function of the To regulate the supply air volume without direct measurement of the air outlet temperature.
Stand der Technik: Derartige Regelung ist dem Anmelder nicht bekannt.State of the art: The applicant is not aware of any such regulation.
Kritik des Standes der Technik: Durch das Fehlen einer entsprechenden Schaltung entsteht ein sehr schneller Verschleiß der Heizelemente durch unsachgemäßen Gebrauch, insbesondere zu geringer Zuluftmenge bei hoher Leistungseinstellung.Criticism of the prior art: Due to the lack of a corresponding The heating elements wear out very quickly due to improper switching Use, especially too little supply air at a high power setting.
Aufgabe: Der Erfindung liegt die Aufgabe zugrunde diesen.Verschleiß zu mindern und das Gerät anwendungsfreundlicher zu machen.Task: The invention is based on the task of these wear to reduce and to make the device more user-friendly.
Lösung: Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß eine in Abhängigkeit der Zuluftmenge sich verändernde Temperatur eines Widerstandes mittels Heißleiter gemessen, ausgewertet und auf die elektronische Steuerung gegeben, ein zurücksteuern der Leistung bewirkt.Solution: This object is achieved according to the invention in that a depending on the amount of supply air changing temperature of a resistor by means of NTC thermistors measured, evaluated and sent to the electronic control control back the performance causes.
Erzielbare Vorteile: Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß ein hoher Verschleiß von Heizelementen durch falsche Bedienung des Warmgasschweißgerätes, hier zu hohe Temperatureinstellung bei ungenügender Luftzufuhr, vert hindert wird. Der spezifische Widerstand eines Heißleiters sinkt bei steigender Temperatur. Verringert sich die Menge der Luftversorgung eines Warmgasschweißgerätes, so steigt die Temperatur des in der Spannungsversorgung eingebauten Vorwiderstandes der elektronischen Leistungsregelung. Der vor genannte Heißleiter befindet sich mit dem Vorwiderstand in thermischen Kontakt, d.h. eine Temperaturänderung des Vorwiderstandes, zieht eine Widerstandsänderung des Heinleit ters nach sich. Diese Änderung bewirkt wiederum durch Einwirken auf den integrierten Schaltkreis eine Verringerung der Zündimpulse des elektronischen Schalters" Triac, was wiederum die Heizwendeltemperatur des Heizelementes herabsetzt. Da die Heizwendeltemperatur das wichtigste Kriterium für die Lebensdauer der Heizelemente ist, bedeutet eine möglichst tiefe Temperatur eine max. hohe Lebensdauer. Die insbesondere dadurch, da bei Heizwendeltemperaturen von mehr als 1000 Celsius die Heizwendel umgebende Keramik leitend wird und somit eine Zerstörung durch schmelzender Keramik und Kurzschluß entsteht.Achievable Advantages: The advantages that can be achieved with the invention exist especially that high wear and tear of heating elements due to incorrect operation of the hot gas welding device, here too high temperature setting with insufficient air supply, vert is prevented. The specific resistance of an NTC thermistor decreases as it increases Temperature. If the amount of air supply to a hot gas welding device is reduced, this increases the temperature of the series resistor built into the power supply the electronic power control. The thermistor mentioned before is located with the series resistor in thermal contact, i.e. a temperature change of the series resistor, pulls a change in resistance of the Heinleit age. This change causes in turn, by acting on the integrated circuit, a reduction in Ignition pulses of the electronic switch "Triac, which in turn the heating coil temperature of the heating element. Because the heating coil temperature is the most important criterion for the service life of the heating elements means the lowest possible temperature a long service life. Especially because of the heating coil temperatures of more than 1000 Celsius, the ceramic surrounding the heating coil becomes conductive and thus destruction by melting ceramics and a short circuit occurs.
Beschreibung eines Ausführungsbeispieles:Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.Description of an exemplary embodiment: An exemplary embodiment of the The invention is illustrated in the drawing and will be described in more detail below.
Fig. a das Beispiel der Anwendung Fig. "b" das Blockschaltbild. Fig. A shows the example of the application. Fig. "B" shows the block diagram.
Die Figur a zeigt ein Warmgasschweißgerät wie es zum Schweißen von thermoplastischen Kunststoffen benutzt wird. Figure a shows a hot gas welding device as it is for welding is used by thermoplastics.
Hierbei sind in einem hohlen Griff die Teile 9 Steuerplatine; 3 Stellgleid (Poti); 4 Integrierter Schaltkreis; 5 Vorwiderstand; 6 Schaltglied (Triac); 7 Heizelement; 8 War luftaustritt; 10 Heißleiter NTC; 1 ist die Spannungsversorgung; 2 die Kaltluftversorgung.Here are the parts 9 control board in a hollow handle; 3 control unit (Poti); 4 integrated circuit; 5 series resistor; 6 switching element (triac); 7 heating element; 8 Was air outlet; 10 NTC thermistors; 1 is the power supply; 2 the cold air supply.
Die zugeführte Luftmenge (2) kühLt den Vorwiderstand (5).The amount of air supplied (2) cools the series resistor (5).
Ist die Luftmenge genügend (ca. 75 1/min) hat der HeiBleiter (10) einen hohen Widerstand, da er im kalten Zustand schlecht leitet. Wird die Zuluftmenge (2) ungenügend, bzw.If the air volume is sufficient (approx. 75 1 / min) the heat conductor (10) a high resistance, as it conducts poorly when cold. Will the supply air volume (2) insufficient or
unterliegt sie systembedingten Schwankungen wird der Vorwiderstand (s) nicht mehr so gut gekühlt, die Leitfähigkeit des Heißleiters (io) wird besser, die im integriertem Schaltkreis eingebaut Auswertschaltung vermindert die Zü impulse des Triac's (6) die Stromaufnahme des Heizelementes wird geringer. Somit sinkt die Wendel temperatur des Heizer mentes; ein schmelzen der Keramik wird verhindert und die Lebensdauer des Heizelementes verlängert.If it is subject to system-related fluctuations, the series resistance becomes (s) not so well cooled, the conductivity of the thermistor (io) is better, The evaluation circuit built into the integrated circuit reduces the Zü impulses of the triac (6) the power consumption of the heating element is lower. Thus the Coil temperature of the heater mentes; melting of the ceramic is prevented and extends the service life of the heating element.
L e e r s e i t eL e r s e i t e
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782845652 DE2845652A1 (en) | 1978-10-20 | 1978-10-20 | Hot air welding gun control - by air temp responsive PTC resistor controlling triac for heating element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782845652 DE2845652A1 (en) | 1978-10-20 | 1978-10-20 | Hot air welding gun control - by air temp responsive PTC resistor controlling triac for heating element |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2845652A1 true DE2845652A1 (en) | 1980-04-30 |
Family
ID=6052628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782845652 Withdrawn DE2845652A1 (en) | 1978-10-20 | 1978-10-20 | Hot air welding gun control - by air temp responsive PTC resistor controlling triac for heating element |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2845652A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0743164A2 (en) * | 1995-05-15 | 1996-11-20 | Hainsberger Metallwerk GmbH | Process and apparatus for hot gas welding of plastics |
DE19517752A1 (en) * | 1995-05-15 | 1996-11-21 | Hainsberger Metallwerk Gmbh | Plastic film hot gas welding for high precision temp. control |
-
1978
- 1978-10-20 DE DE19782845652 patent/DE2845652A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0743164A2 (en) * | 1995-05-15 | 1996-11-20 | Hainsberger Metallwerk GmbH | Process and apparatus for hot gas welding of plastics |
DE19517752A1 (en) * | 1995-05-15 | 1996-11-21 | Hainsberger Metallwerk Gmbh | Plastic film hot gas welding for high precision temp. control |
EP0743164A3 (en) * | 1995-05-15 | 1997-12-10 | Hainsberger Metallwerk GmbH | Process and apparatus for hot gas welding of plastics |
US6134387A (en) * | 1995-05-15 | 2000-10-17 | Toss; Ramon | Process and device for hot gas welding of plastic sheets with electrically heated tubular gas flow conduit |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |