DE8336307U1 - Trennschweißeinrichtung für übereinanderliegende Kunststoffolienbahnen - Google Patents

Trennschweißeinrichtung für übereinanderliegende Kunststoffolienbahnen

Info

Publication number
DE8336307U1
DE8336307U1 DE19838336307 DE8336307U DE8336307U1 DE 8336307 U1 DE8336307 U1 DE 8336307U1 DE 19838336307 DE19838336307 DE 19838336307 DE 8336307 U DE8336307 U DE 8336307U DE 8336307 U1 DE8336307 U1 DE 8336307U1
Authority
DE
Germany
Prior art keywords
plastic film
separating
welding tool
film webs
plastic
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
Application number
DE19838336307
Other languages
English (en)
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.)
ECH Will GmbH and Co
Original Assignee
ECH Will GmbH and Co
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 ECH Will GmbH and Co filed Critical ECH Will GmbH and Co
Priority to DE19838336307 priority Critical patent/DE8336307U1/de
Publication of DE8336307U1 publication Critical patent/DE8336307U1/de
Expired 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7439—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for continuously and longitudinally welding and severing webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members
    • 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
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
    • B29C65/787—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains
    • B29C65/7873—In-line machines, i.e. feeding, joining and discharging are in one production line using conveyor belts or conveyor chains using cooperating conveyor belts or cooperating conveyor chains
    • 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
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • 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
    • B29C66/849—Packaging machines
    • 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
    • B29C66/87—Auxiliary operations or devices
    • B29C66/874—Safety measures or devices
    • B29C66/8744—Preventing overheating of the parts to be joined, e.g. if the machine stops or slows down
    • B29C66/87443—Preventing overheating of the parts to be joined, e.g. if the machine stops or slows down by withdrawing the heating 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
    • B29C66/912—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
    • B29C66/91211—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 with special temperature measurement means or methods
    • B29C66/91212—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 with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in 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
    • B29C66/90—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
    • B29C66/91231—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 of the joining tool
    • 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
    • B29C66/81417—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 being V-shaped
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • 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
    • B29C66/90—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Making Paper Articles (AREA)

Description

5tu.: Kunststoff-Folien-Trennschueißeinrichtung Uill-Akte 128 - Hamburg, den 5. Dezember 1983
TrennschueiQeinrichtung für übereinanderliegende Kunststoffolienbahnen
Die Erfindung betrifft eine TrennschueiQeinrichtung für zwei übereinanderliegende Kunststoffolienbahnen zur Verpackung von Gegenständen.
Bei derartigen bekannten Trennschueißeinrichtungen erfolgt der Transport der Kunststoffolienbahnen zum Trennschueißuerkzeug meistens zwischen Endlosbänderpaaren.
Diese dienen neben der Zuführung der Folienbahnon gleichzeitig zu deren Festhalten, um eine gleichmäßige, faltenfreie Schweißnaht zu erreichen.
Zuischen den Oberbändern der Endlosbänderpaare ist meist das Trennschueißuerkzeug angeordnet, uelches in vielfältigster Ausbildung als ein elektrisch beheiztes Messer bekannt ist. So sind beispielsueise kreisförmige rotierende Messer, vertikal angeordnete Fiesser u.a. Trennschueißmesser bekannt.
Probleme treten bei derartigen Trennschueißeinrichtungen in der Hinsicht auf, daß die beim Trennschweißvorgang erwärmte ueiche Kunststoffolie an den Trennschweißuerkzeugen anhaftet oder die abgetrennten Kungtstoffolienabschnitte wieder mit der noch uarmen Schweißnaht verkleben.
Um das zu vermeiden, sind Kühleinrichtungen bekannt, die beispielsueise mittels Blasluft die Schweißnaht abkühlen. Außerdem sind Einrichtungen bekannt, bei denen den Trennschuieißmessern zusätzlich zu ihrer Relativbewegung zur Kunstetoffolienbahn sine oszillierende Bewegung erteilt wird* Hierdurch sollen die Trennschweißmesser ständig in einor das Anhaften der Folie vermeidenden Bewegung
I * C ·
Stw.s Kunststoff-Folien-TrennschueiSeinrichtung Ulli-Akte 12Θ - Hamburg, den 5. Dezember 19Θ3
gehalten werden.
Abgesehen von dem damit verbundenen hohen technischen Aufwand ist mit diesen Einrichtungen meist nur die Ausführung einer seitlichen LMngsschweiQnaht möglich« Das bedeutet, daß sie für eine mehrnutzige Arbeitsweise, IQ bei der mehrere parallel angeordnete Reihen von Gegenständen gleichzeitig in Kunststoffolien eingeschweißt werden, nicht geeignet sind.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Ig TrennschweiQeinrichtung zu schaffen, die unter Vermeidung der genannten Nachteile eine mehrnutzige Arbeitsweise gestattet.
Erfindungsgemäß wird das dadurch erreicht, daß das TrennschweiQwerkzeug eine zur Ebene der Kunststoffolienbahnen schräg verlaufende, angespitzte und zwei symmetrische Sehweißflächen bildende Worderkante aufweist und es aus der Folienbahnebene ausschwenkbar ist.
Das Ausschwenken des Trennschweißwerkzeuges erfolgt dabei gemäß der Erfindung mittels eines pneumatischen An triebes.
Zur Beheizung des Trennschweißwerkzeuges ist eine Heizpatrone vorgesehen. Die Kontrolle erfolgt über einen Temperaturfühler. Für beides sind erfindungsgemäß im Trennschweißwerkzeug entsprechende Aufnahmen vorgesehen. Die Endlosbänder für den Folientransport sind zur Erreichung der Schlupffreiheit nach der .Erfindung als Zahnriemen ausgebildet.
Die Ausbildung des Trennschueißwerkzeuges mit zwei
Schweißflächen ermöglicht die gleichzeitige Herstellung von zwei Längsschueißnähten und somit eine mehrnutzige
• · · ί
• . ι
Stu.: Kunststoff-Folien-TrennschueiQainrichtung Uill-Akte 128 - Hamburg, den 5. Dezember 1963
Arbeitsweise der Einrichtung.
Durch die Ausschuenkbarkeit des TrennschueiQuerkzeuges bei einem Maschinanstop uird ein eventuelles Ankleben der Kunststoffolie an diesem sicher verhindert. Die Weruendung von Zahnriemen als Transportmittel fUr die Kunststoffolienbahnen gewährleistet deren schlupf- und somit faltenfreie Zuführung.
Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert uerden.
In den Zeichnungen zeigen
Fig. 1: eine Seitenansicht der erfindungsgemäOen TrennschueiQeinrichtung in vereinfachter Darstellung,
Fig. 2: das TrennschueiGuerkzeug in einer Ansicht aus Richtung χ nach Fig. 1 und in gegenüber der Fig. 1 vergrößerter Darstellung,
Fig. 3: das Trennschueißuerzeug in einer Ansicht aus Richtung y nach Fig. 1.
.!■III i · · ·
Stu.: Kunststoff-Folien-Trennschueiüeinrichtung Uill-AktB 128 - Hamburg, den 5. Dezember 1983
Mittels als Zahnriemen ausgebildeter Endlosbänderpaare, von denen in Fig. 1 nur ein oberes Sand 1 dargestellt ist, werden die beiden Kunststoffolienbahnen, von denen ebenfalls nur die obere Kunststoffolienbahn 2 strichpunktiert angedeutet ist, in Richtung des Pfeiles A zu- geführt.
Das über Rollen 3;4 und eine Spannrolle 6 laufende Band 1 gleitet im Bereich der Folienstrecke in einer Führung 7. Ebenso läuft das hierzu parallel angeordnete, in Fig. 1 nicht sichtbare zweite Oberband.
Zwischen den beiden oberen Bändern 1 ist ein beheiztes TrennschueiQwerkzeug θ angeordnet, welches in Arbeitsstellung in die Folienstrecke ragt und bei einem Maschinenstop mittels eines pneumatischen Antriebes 9 aus dieser um die Achse 11 ausschwenkbar ist.
Das TrennschweiQwerkzeug θ weist eine zur Ebene der Kunststoffolienbahnen 2 schräge V/orderkante 12 auf« Diese schräge Vorderkante 12 ist über ihre gesamte Länge so angespitzt, daß sich zwei symmetrische SchueiGflä· chen 13;14 bilden (Fig. 2 und 3), so daß es möglich ist, gleichzeitig mit einem Trennschnitt zwei LängsschweiQ- nähte herzustellen. Das ermöglicht eine sogenannte mehrnutzige Arbeitsweise der Einrichtung.
Zur Beheizung des TrennschweiOwerkzeuges 8 ist eine nicht dargestellte Heizpatrone vorgesehen, die in eine im TrennschweiQwerkzeug θ vorhandene Aufnahme 16 eingebracht wird. Oberhalb der Aufnahme 16 ist eine weitere Aufnahme 17 für einen nicht dargestellten Temperaturfühler angeordnet.
• · ■ ·
« ■

Claims (5)

4· · 5tu.: Kunststoff-Folien-Trennschueißeinrichtung Uill-Akte 128 - Hamburg, den 5. Dezember 1983 P-- - Ansprüche
1. TrennschueiQeinrichtung -Tür zuei übereinanderliegende Kunststoffolienbahnen zur Verpackung von Gegenständen zwischen diesen, wobei zur Zuführung der Kunststoffalienbahnen Endlosbänderpaare vorgesehen sind, zwischen denen ein beheiztes TrennschweiGuerkzeug angeordnet ist, dadurch gekennzeichnet^ daß das Trennschueißuerkzeug (θ) eine zur Ebene der Kunststoffolienbahnen (2) schräg verlaufende, angespitzte und zuei symmetrische Schueiöflächen (13;14) bildende Vorderkante (12) aufweist und es aus der Folienbahnebene ausschwenkbar ist.
2. Trenns-hueißeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zum Ausschwenken des Trennschweißwerkzeuges (θ) ein pneumatischer Antrieb (9) vorgesehen ist.
3. Trennschueißeinrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet, daß das Trennschueißuerkzeug (θ) mit einer Heizpatrone und einem Temperaturfühler versehen ist, uozu es entsprechende Aufnahmen (16 bzu. 17) aufweist.
4· Trennschueißeinrichtung nach Anspruch 1, gekennzeichnet durch als Zahnriemen ausgebildete Endlosbänder (i) für einen schlupffreien Folientransport.
DE19838336307 1983-12-17 1983-12-17 Trennschweißeinrichtung für übereinanderliegende Kunststoffolienbahnen Expired DE8336307U1 (de)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2718192A1 (de) * 2011-08-01 2014-04-16 Shanklin Corporation Schwenkbarer röhrenheizkörper für eine seitendichtungsmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2718192A1 (de) * 2011-08-01 2014-04-16 Shanklin Corporation Schwenkbarer röhrenheizkörper für eine seitendichtungsmaschine
EP2718192A4 (de) * 2011-08-01 2014-12-31 Shanklin Corp Schwenkbarer röhrenheizkörper für eine seitendichtungsmaschine

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