DE4202343A1 - Vorrichtung zum versiegeln einer blisterverpackung - Google Patents

Vorrichtung zum versiegeln einer blisterverpackung

Info

Publication number
DE4202343A1
DE4202343A1 DE4202343A DE4202343A DE4202343A1 DE 4202343 A1 DE4202343 A1 DE 4202343A1 DE 4202343 A DE4202343 A DE 4202343A DE 4202343 A DE4202343 A DE 4202343A DE 4202343 A1 DE4202343 A1 DE 4202343A1
Authority
DE
Germany
Prior art keywords
sealing
frame
electrode
cooling
metal plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE4202343A
Other languages
English (en)
Inventor
Guenther Kiefer
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.)
Adolf Illig Maschinenbau GmbH and Co KG
Original Assignee
Adolf Illig Maschinenbau GmbH and Co KG
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 Adolf Illig Maschinenbau GmbH and Co KG filed Critical Adolf Illig Maschinenbau GmbH and Co KG
Priority to DE4202343A priority Critical patent/DE4202343A1/de
Publication of DE4202343A1 publication Critical patent/DE4202343A1/de
Withdrawn legal-status Critical Current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
    • B29C65/242—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 the heat transfer being achieved by contact, i.e. a heated tool being brought into contact with the welding tool and afterwards withdrawn from it
    • 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
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • 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
    • B29C66/70—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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/748—Joining plastics material to non-plastics material to natural products or their composites, not provided for in groups B29C66/742 - B29C66/746
    • B29C66/7486—Paper, e.g. cardboard
    • 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
    • B29C66/814—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
    • B29C66/81431—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 cavity, e.g. a groove
    • 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
    • B29C66/8167—Quick change joining tools or surfaces
    • 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
    • B29C66/8181—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 cooling constructional aspects
    • B29C66/81811—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 cooling 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
    • B29C66/8181—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 cooling constructional aspects
    • B29C66/81815—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 cooling constructional aspects of the 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
    • B29C66/83—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
    • B29C66/8322—Joining or pressing tools reciprocating along 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/32—Cooling, or cooling and pressing, package closures after heat-sealing
    • 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
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
    • B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on 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
    • B29C66/812—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Package Closures (AREA)
  • Basic Packing Technique (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Versiegeln einer Blisterverpackung, bestehend aus einer Blisterhaube aus thermoplastischem Kunststoff, dem Verpackungsgut und einem Träger, ebenfalls aus thermoplastischem Kunststoff, nach der Gattung des Hauptanspruches.
Aus der DE 37 22 214 A1 ist eine Vorrichtung bekannt, bei der umlaufende Paletten zum Einlegen und Transportieren der Blisterhauben vorgesehen sind. Diese liegen auf einer ebe­ nen, dünnen Metallfolie auf. Beim Siegeln der Blisterhaube gegen einen Träger aus Karton wird eine unter den Paletten angeordnete, beheizte Siegelelektrode gegen die Metallfolie gepreßt, als Gegenlage dient eine Platte.
Die Anordnung der beheizten Siegelelektrode unterhalb eines Trägers für die Blisterhauben bringt sowohl bei linearen Systemen wie auch bei der Anordnung auf einem Drehteller einen höheren konstruktiven Aufwand mit sich als wenn die beheizte Siegelelektrode oberhalb der Blisterhaube angeord­ net ist. Bei der DE 37 22 214 wurde diese Ausführung deshalb gewählt, weil das Siegeln von der Blisterseite her beim Siegeln der Blisterhaube gegen einen Karton Vorteile bringt hinsichtlich Verzug.
Wenn anstelle des Trägers aus Karton eine Kunststoffolie eingesetzt wird, können die Vorteile der Anordnung der Sie­ gelelektrode oberhalb der Blisterhaube ausgenutzt werden, weil es bezüglich des Verzuges gleich ist, von welcher Seite gesiegelt wird. Dieser Verzug tritt allerdings bei den Ver­ siegelungen deshalb auf, weil nach dem Siegeln und nach dem Wegfahren der Siegelelektrode eine warme Zone ohne Einspan­ nung und ohne direkte Kühlung abkühlen muß.
Es besteht zudem die Gefahr, daß die Kunststoffolie an der heißen Siegelelektrode kleben bleibt, weil zur Erreichung einer kurzen Siegelzeit möglichst warm gefahren wird.
Der Erfindung liegt die Aufgabe zugrunde, die Vorrichtung so auszubilden, daß beim Versiegeln von Blisterpackungen, bei denen der Träger aus thermoplastischem Kunststoff besteht, ein möglichst geringer Verzug der Blisterverpackung ein­ tritt. Ein Kleben der Kunststoffolie an der heißen Siegel­ elektrode sollte nicht eintreten. Baumäßig sollte ein gerin­ ger Platzbedarf erforderlich sein und es sollten geringe Formatkosten anfallen. Auch bei Mehrfachpackungen sollte die Vorrichtung einsetzbar sein.
Zur Lösung der Aufgabe werden die kennzeichnenden Merkmale des Hauptanspruches vorgeschlagen. Dadurch, daß um die be­ heizte Siegelelektrode herum ein voreilender, gekühlter Kühlrahmen mit einer dünnen Metallplatte angeordnet ist und das Siegeln durch diese Metallplatte hindurch erfolgt, bleibt der versiegelte Rand der Blisterverpackung nach dem Abheben der Siegelelektrode noch eingespannt. Da der Rahmen gekühlt ist, kühlt die Metallplatte relativ rasch ab und kühlt dadurch den Siegelrand unter Einspannung ab. Eine Klebegefahr zwischen Metallplatte und Kunststoffolie ist damit weitgehend verhindert und kann durch eine entsprechen­ de Oberflächenbeschichtung weiter reduziert werden. Je nach Art des Antriebes der Siegelelektrode stoppt der Antrieb gegebenenfalls nach dem Abheben der Siegelelektrode. Bei einem Antrieb über einen Kniehebeltrieb verläuft das Abheben sowieso mit langsamer Geschwindigkeit, so daß die Abkühlzeit bei einem entsprechend großen Federweg des Kühlrahmens aus­ reichend lang ist.
Ein Ausführungsbeispiel der Erfindung und vorteilhafte Wei­ terbildungen sind anhand der schematischen Zeichnungen näher beschrieben.
Es zeigt:
Fig. 1 einen Querschnitt durch die Siegelstation bei ganz abgehobener Siegelelektrode,
Fig. 2 denselben Querschnitt beim Siegeln,
Fig. 3 denselben Querschnitt nach dem teilweisen Abheben der Siegelelektrode,
Fig. 4-5 verschiedene Varianten der Befestigung des Siegel­ rahmens am Kühlrahmen.
Die Vorrichtung zum Versiegeln der Blisterverpackungen 1 weist in ihrer Siegelstation eine Aufnahme für die Blister­ hauben 3 auf, die in den Fig. 1 bis 3 als Siegelpalette 2 dargestellt ist und die auf einem Drehteller 4 sitzt. Es kann sich bei der Aufnahme aber genauso um linear bewegte Paletten handeln, die z. B. aus Blech mit einem Durchbruch bestehen. Eine höhenbewegliche Siegelelektrode 5 ist über der Siegelpalette 2 angeordnet. Sie sitzt an einer über Heizpatronen 6 erwärmbaren Heizplatte 7, die über einen höhenbeweglichen Obertisch 8 und einen nicht dargestellten Antrieb vertikal verschoben werden kann. An der Heizplatte 7 ist ein gefederter Kühlrahmen 9 angeordnet, gehalten über Bundschrauben 10, beaufschlagt mit Federn 11. Sein Durch­ bruch 12 ist um das Maß "A" größer als die Außenmaße der Siegelelektrode 5. Diesen Abstand überbrückt ein Siegelrah­ men 13 aus dünnem Metallblech, der am Kühlrahmen 9 befestigt ist und der über die Breite "A" und die Breite "B" der Sie­ gelnaht verläuft. Seine Befestigung kann über einen Halterah­ men 14, wie in den Fig. 1 bis 3 dargestellt, erfolgen. In diesem Fall ist der Siegelrahmen 13 abgekröpft ausgeführt. Eine Befestigung durch Kleben, über Senkschrauben oder Senkniete, ist möglich (in Fig. 4 angedeutet). Eine Ausbil­ dung des Siegelrahmens 13 als Winkelrahmen, der an der Innen­ seite des Durchbruches 12 befestigt ist, z. B. durch Kleben, ist ebenso möglich (Fig. 5).
Die Oberfläche des Kühlrahmens 13 kann vorzugsweise beschich­ tet sein, z. B. teflonisiert, damit sie eine Antihaftwirkung aufweist. Im Kühlrahmen 9 verlaufen Bohrungen 15 zur Durch­ leitung eines Kühlmediums.
Die Arbeitsweise der Vorrichtung ist wie folgt.
Nach dem Eintransport einer Siegelpalette 2 in die Siegelsta­ tion - Blisterhaube 3, Verpackungsgut 16 und Trägerfolie 17 sind eingelegt bzw. aufgelegt - wird der Obertisch 8 abge­ senkt. Der Siegelrahmen 13 liegt zuerst auf der Trägerfolie 17 auf, die Siegelelektrode 5 trifft nach entsprechendem Federweg des Kühlrahmens 9 auf den Siegelrahmen 13 auf. Da der Siegelrahmen 13 sehr dünn ist, erwärmt er sich über die Siegelelektrode sehr rasch und versiegelt die Blisterverpac­ kung 1. Nach einer eingestellten Siegelzeit fährt die Siegel­ elektrode 5 aufwärts, der Siegelrahmen 13 drückt weiterhin auf den Siegelrand der Blisterverpackung 1. In dieser Zeit kühlt der Siegelrahmen 13 rasch aus, da er vom Kühlrahmen 9 aus gekühlt wird und kühlt auf diese Weise den Siegelrand unter Einspannung ab. Je nach Antriebsart und geometrischen Abmessungen erfolgt bei abgehobener Siegelelektrode 5 ein Zwischenstop des Antriebes oder er fährt durch.

Claims (5)

1. Vorrichtung zum Versiegeln einer Blisterverpackung, beste­ hend aus einer Blisterhaube aus Kunststoff, dem Verpackungs­ gut und einer Trägerfolie aus Kunststoff, bei der das Versiegeln mit einer Siegelelektrode durch eine dünne Metallplatte hindurch im Zusammenwirken mit einer Gegenla­ ge erfolgt, dadurch gekennzeichnet, daß die dünne Metall­ platte in Form eines Siegelrahmens (13) an einem gekühl­ ten Kühlrahmen (9) angeordnet ist, der sich um die Siegel­ elektrode (5) herum erstreckt und zu ihr verschiebbar ausgebildet ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die der Blisterverpackung (1) zugewandte Seite des Siegel­ rahmens (13) mit einer Antihaft-Beschichtung versehen ist.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeich­ net, daß der Siegelrahmen (13) plan ausgebildet und durch Kleben, Schrauben oder Nieten mit dem Kühlrahmen (9) verbunden ist.
4. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeich­ net, daß der Siegelrahmen (13) abgekantet und an der Innenseite des Durchbruches (12) am Kühlrahmen (9) befe­ stigt ist.
5. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeich­ net, daß der Siegelrahmen (13) abgekröpft ausgebildet und mit einem Halterahmen (14) am Kühlrahmen (9) befestigt ist.
DE4202343A 1992-01-29 1992-01-29 Vorrichtung zum versiegeln einer blisterverpackung Withdrawn DE4202343A1 (de)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3831581A1 (de) * 2019-12-06 2021-06-09 MULTIVAC Sepp Haggenmüller SE & Co. KG Verpackungsmaschine und verfahren mit einem passiven siegelelement für empfindliche folien

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3831581A1 (de) * 2019-12-06 2021-06-09 MULTIVAC Sepp Haggenmüller SE & Co. KG Verpackungsmaschine und verfahren mit einem passiven siegelelement für empfindliche folien
DE102019219063A1 (de) * 2019-12-06 2021-06-10 Multivac Sepp Haggenmüller Se & Co. Kg Verpackungsmaschine und Verfahren mit einem passiven Siegelelement für empfindliche Folien

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