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DE2242179A1 - Heissiegelwerkzeug - Google Patents

Heissiegelwerkzeug

Info

Publication number
DE2242179A1
DE2242179A1 DE2242179A DE2242179A DE2242179A1 DE 2242179 A1 DE2242179 A1 DE 2242179A1 DE 2242179 A DE2242179 A DE 2242179A DE 2242179 A DE2242179 A DE 2242179A DE 2242179 A1 DE2242179 A1 DE 2242179A1
Authority
DE
Germany
Prior art keywords
sealing bar
elastic
heat sealing
sealing
heat
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.)
Pending
Application number
DE2242179A
Other languages
English (en)
Inventor
Peter Lau
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.)
FR Hesser Maschinenfabrik AG
Original Assignee
FR Hesser Maschinenfabrik AG
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 FR Hesser Maschinenfabrik AG filed Critical FR Hesser Maschinenfabrik AG
Priority to DE2242179A priority Critical patent/DE2242179A1/de
Priority to CH1167773A priority patent/CH551857A/de
Publication of DE2242179A1 publication Critical patent/DE2242179A1/de
Pending legal-status Critical Current

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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated 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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8182—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects
    • B29C66/81821—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects of the welding jaws
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8187—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects
    • B29C66/81871—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects of the welding jaws
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

  • "Heißsiegelwerkzeug" 3 (ZusatzánmeIdung zu Patent 1 912 294) Die Erfindung betrifft ein Heißsiegelwerkzeug zum Herstellen von Nähten an Folien aus thermoplastischen Werkstoffen, welches aus einem mit Niederspannung betriebenen Heizleiter, einer von diesem erwärmten Siegelleiste. und einem diese Siegelleiste umgreifenden Halter besteht, wobei letzterer gegen die Siegeileiste wärmeisoliert eingerichtet ist, bei dem gemäß dem Patent 1 913 294 der als Band ausgebildete Heizleiter gegen eine der Arbeitsfläche der Siegelleiste gegenüberliegende, mit einer dünnen elektrischen Isolierschicht versehenen ~längs seite der Siegelleiste durch elastische unter Vorspannung stehende Mittel auf ganzer Länge gleichmäßig angepreßt wird.
  • Als solche elastische unter Vorspannung stehende Mittel zum Andrücken des Bandes an die Siegelleiste wurden bisher Leisten aus Silikongummi verwendet.
  • Beim Einbau in Hochleistungsmaschinen müssen solche Heißsiegelwerkzeuge wegen der kürzeren Taktzeiten auf höhere Temperaturen erhitzt werden. Dabei zeigte sich, daß bei dieser erhöhten Temperaturbeanspruchung der Silikongummi vorzeitig altert und seine Elastizität verliert. Die Silikongummileisten erfüllen dann nicht mehr in der gewUnschten Weise die ihnen übertragene Aufgabe des Andrückens des Bandes an die Siegelleiste.
  • Um diesen Nachteil zu vermeiden, wird ein Heißsiegelwerkzeug vorgeschlagen, das erfindungsgemäß dadurch gekennzeichnet ist, daß die elastischen unter Vorspannung stehenden Mittel aus einer mit einer elektrischen Isolierschicht versehenen Metalleiste und mindestens einer auf diese wirkende Metallfeder bestehen.Die Metalleiste besteht vorzugsweise aus Aluminium und ist an ihrer Oberfläche eloxiert.
  • Zusätzlich zu einer verbesserten Temperaturbeständigkeit und Lebensdauer erbringt die Verwendung der metallischen Federn eine bessere Vorausbestimmbarkeit derjenigen Kräfte, die das Heizband gegen die Siegelleiste drücken sollen.
  • Dadurch werden die Anpaßarbeiten, die bei der Verwendung von Gummileisten viel Zeitaufwand beanspruchen, weitgehend vermieden.
  • Ein Ausbildungsbeispiel des erfindungsgemäßen Heißsiegelwerkzeugs ist nachstehend anhand einer Zeichnung näher erläutert.
  • Es zeigen: Fig. 1 das Heißsiegelwerkzeug in teilweise aufgeschnittener Darstellung und Fig. 2 das Heißsiegelwerkzeug gemäß Fig. 1 im Querschnitt.
  • Das Heißsiegelwerkzeug besteht im wesentlichen aus einer Siegelleiste 1, einem Heizband 2 und einem aus zwei Spannblechen 3 und einer dazwischenliegenden Befestigungsleiste 4 bestehenden Halter 5 sowie zwei plattenförmigen Isolierelementen 6, einer schlanken Metalleiste 17 und Metallfedern 18.
  • Die Metalleiste 17 und die Siegelleiste 1 bestehen vorzugsweise aus Aluminium. Die Siegelleiste 1, die Befestigungsleiste 4 sowie die Spannbleche 3 und die Isolierelemente 6 w#erden von Bolzen 11 zusammengehalten. Um einen unerwünschten Wärmeübergang von der Siegelleiste 1 über die Bolzen il in Richtung der Befestigungsleiste 4 zu vermeiden, sind die Bolzen 11 von Buchsen 12 umgeben, die aus einem wärmeisolierenden Werkstoff bestehen.
  • Die Siegelleiste 1 weist eine Arbeitsfläche 8 auf, welche sich beim Heißsiegeln gegen die miteinander zu verbindenden Folien legt. Eine dieser Arbeitsfläche 8 gegenüberliegende Längsseite 9 weist eine elektrisch isolierende Schicht 10 auf, die durch Oxydieren der Oberfläche der Siegelleiste 1 erzeugt sein kann. Gegen diese Schicht 10 wird das Heizband 2 angedrückt mittels der Metalleiste 17 und den Metallfedern 18, wobei die Metallfedern 18 von der Befestigungsleiste 4 abgestützt werden. Eine zwischen dem Heizband 2 und der Metalleiste 17 erforderliche weitere elektrische Isolierschicht 19 kann ebenfalls durch Oxydieren der Oberfläche der Metalleiste 17 hergestellt sein.
  • Statt der schraubenartig gewickelten Metallfedern 18 könnte auch ein nicht dargestelltes, wellenförmig gebogenes, aus einem Pederwerkstoff bestehendes Band vorgesehen werden.

Claims (3)

  1. Patentansprüche
    Ü)Heißsiegelwerkzeug zum Herstellen von Nähten an Folien aus thermoplastischen Werkstoffen, welches aus einem mit Niederspannung betriebenen Heizleiter, einer von diesem erwärmten Siegelleiste und einem diese Siegelleiste umgreifenden Halter besteht, wobei letzterer gegen die Siegelleiste wärmeisoliert eingerichtet ist, bei dem gemäß dem Patent 1 913 294 der als Band ausgebildete Heizleiter gegen eine der Arbeitsfläche der Siegelleiste gegenüberliegen#de, mit einer dünnen elektrischen Isolierschicht versehenen Längsseite der Siegelleiste durch elastische, unter Vorspannung stehende Mittel auf ganzer Länge gleichmäßig angepreßt wird, dadurch gekennzeichnet, daß die elastischen unter Vorspannung stehenden Mittel aus einer mit einer elektrischen Isolierschicht (19) versehenen Metalleiste (17) und mindestens einer auf diese wirkende Metallfeder (1#8) bestehen.
  2. 2. Heißsiegelwerkzeug nach Anspruch 1, dadurch, daß die Metallfedern (18) in Form von Schraubenfedern an sich bekannter Art ausgebildet sind.
  3. 3. Heißsiegelwerkzeug nach Anspruch 1, dadurch gekennzeichnet, daß die Metallfeder (18) aus einem wellenförmig gebogenen Band besteht.
    L e e r s e i t e
DE2242179A 1972-08-26 1972-08-26 Heissiegelwerkzeug Pending DE2242179A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2242179A DE2242179A1 (de) 1972-08-26 1972-08-26 Heissiegelwerkzeug
CH1167773A CH551857A (de) 1972-08-26 1973-08-15 Heisssiegelwerkzeug.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2242179A DE2242179A1 (de) 1972-08-26 1972-08-26 Heissiegelwerkzeug

Publications (1)

Publication Number Publication Date
DE2242179A1 true DE2242179A1 (de) 1974-03-07

Family

ID=5854721

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2242179A Pending DE2242179A1 (de) 1972-08-26 1972-08-26 Heissiegelwerkzeug

Country Status (2)

Country Link
CH (1) CH551857A (de)
DE (1) DE2242179A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017906A1 (de) * 1990-06-02 1992-01-02 Stiegler Maschf Gmbh Vorrichtung zum querschweissen und quertrennen oder querperforieren einer kunststoffolienbahn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017906A1 (de) * 1990-06-02 1992-01-02 Stiegler Maschf Gmbh Vorrichtung zum querschweissen und quertrennen oder querperforieren einer kunststoffolienbahn

Also Published As

Publication number Publication date
CH551857A (de) 1974-07-31

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