DE19504219C1 - Packaging machine - Google Patents

Packaging machine

Info

Publication number
DE19504219C1
DE19504219C1 DE19504219A DE19504219A DE19504219C1 DE 19504219 C1 DE19504219 C1 DE 19504219C1 DE 19504219 A DE19504219 A DE 19504219A DE 19504219 A DE19504219 A DE 19504219A DE 19504219 C1 DE19504219 C1 DE 19504219C1
Authority
DE
Germany
Prior art keywords
packaging machine
web
roller
film
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE19504219A
Other languages
German (de)
Inventor
Rolf Dipl Ing Benz
Eberhard Dipl Ing Krieger
Siegfried Dipl Ing Wentsch
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19504219A priority Critical patent/DE19504219C1/en
Priority to PCT/DE1996/000101 priority patent/WO1996024523A1/en
Priority to EP96900848A priority patent/EP0760781A1/en
Priority to JP8523883A priority patent/JPH09511727A/en
Priority to CN96190041A priority patent/CN1146755A/en
Application granted granted Critical
Publication of DE19504219C1 publication Critical patent/DE19504219C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B29C66/80—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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • 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
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • 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
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B65B9/045—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material for single articles, e.g. tablets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7162—Boxes, cartons, cases
    • B29L2031/7164—Blister packages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

The invention concerns a packaging machine for sealing a cover foil strip (30; 30a) onto a plastics web (11; 11a) which comprises cups (12). The packaging machine comprises a roller arrangement (20; 40) which plastically deforms the plastics web (11; 11a) according to the distances (a) between the cups. The packaging machine can be adapted particularly easily to modified foil parameters or machine tolerances by means of the roller arrangement (20; 40). It is also possible to further process a cooled foil web (11; 11a) located in the packaging machine after pauses in production.

Description

Die Erfindung geht aus von einer Verpackungsmaschine nach dem Oberbegriff des Anspruchs 1.The invention is based on a packaging machine the preamble of claim 1.

Bei der Bearbeitung einer Näpfe aufweisenden und mit einer Deckfolie versiegelten Folienbahn können insbesondere zwei Probleme auftreten: zum einen kommt es zu nicht mittig geprägten, perforierten oder gestanzten Verpackungsstreifen was sich bzw. in zerdrückten Näpfen oder Tabletten äußert. Zum anderen kann ein Versatz zwischen der Folienbahn und der Deckfolie bestehen, so daß Druckbilder der Deckfolie nicht mehr positionsgerecht auf der Folienbahn erscheinen. Diese beiden Probleme sind insbesondere durch Vorzugsschwankungen der Folienbahn infolge von Maschinentoleranzen, Schrumpfen der Folienbahn durch Abkühlen entlang ihres Förderwegs, geänderte Foliengeometrie nach dem Wiederanlaufen nach einer Produktionspause oder sich ändernde Folienparameter, beispielsweise bei Verwendung einer Folie mit anderem Wärmeausdehnungskoeffizienten, bedingt.When editing a Containing bowls and sealed with a cover film In particular, two problems can arise in film web: for one is not perforated or embossed in the center punched packaging strips what was crushed or in Bowls or tablets. Second, an offset exist between the film web and the cover film, so that Print images of the cover film no longer in the correct position the film web appear. These are two problems in particular due to preferred fluctuations in the film web due to machine tolerances, shrinkage of the film web by cooling along their path, changed Foil geometry after restarting after a Production break or changing film parameters, for example when using a film with another Coefficient of thermal expansion.

Bezüglich der nicht mittig geprägten, perforierten oder gestanzten Verpackungsstreifen ist es bekannt, zum Ausgleich der Vorzugsschwankungen der Folienbahn eine zusätzliche, napforientierte Transportwalze vorzusehen, die unmittelbar vor der Prägeeinrichtung oder der Perforiereinrichtung angeordnet ist. Weiterhin ist es möglich, mittels einer Messung der Napfabstände die Vorschubeinrichtungen der Folienbahn entsprechend zu regeln. Beide Lösungen führen zu einem Mehraufwand der Verpackungsmaschine und benötigen zusätzlichen Einbauraum.Regarding the non-center embossed, perforated or Die-cut packaging strips are known to compensate the preferred fluctuations of the film web an additional,  nap-oriented transport roller to provide the immediately in front of the embossing device or the Perforating device is arranged. Furthermore it is possible by measuring the cup spacing To regulate feed devices of the film web accordingly. Both solutions lead to an additional effort of Packaging machine and require additional installation space.

Um den Versatz zwischen der Deckfolie und der Folienbahn zu vermeiden ist es weiterhin aus der DE 39 12 054 A1 bekannt, den Vorzug der Folienbahn in einen Regelkreis dem Abstand der Deckbilder anzupassen. Bei der DE-41 22 903 A1 hingegen werden Deckfolie und Folienbahn zusammen vor dem Siegeln der Deckfolie gezielt erwärmt, so daß es durch die unterschiedlichen Wärmeausdehnungskoeffizienten von Deckfolie und Folienbahn zu einem entsprechenden Ausgleich des Versatzes kommt. Auch diese beiden Lösungen führen zu einem Mehraufwand an der Verpackungsmaschine und vermeiden nicht das außermittige Prägen an einer nachgeordneten Prägestation.To compensate for the offset between the cover film and the film web avoid it is also known from DE 39 12 054 A1, the preference of the film web in a control loop the distance to adapt the cover images. In DE-41 22 903 A1, however cover film and film web are sealed together before sealing the Cover film specifically heated so that it through the different coefficients of thermal expansion of Cover film and film web for a corresponding compensation of the offset comes. These two solutions also lead to an additional effort on the packaging machine and avoid not off-center stamping on one downstream stamping station.

Aus der DE 30 26 856 A1 ist ferner eine Vorrichtung bekannt, die zwei in einem gewissen Abstand voneinander beabstandete Walzenpaare aufweist, zwischen denen eine Folienbahn gelängt werden kann. Die Längung erfolgt dadurch, daß die beiden Walzenpaare mit unterschiedlichen Drehzahlen angetrieben werden, so daß es infolge der dadurch in der Folienbahn auftretenden Zugspannung zur gewünschten Längung kommt. Die Regelung der Drehzahlen der Walzenpaare ist relativ aufwendig. Außerdem ist für dieses Verfahren eine reißfeste Folienbahn erforderlich, da es ansonsten zum Einreißen der Folienbahn kommen kann.From DE 30 26 856 A1 a device is also known two spaced apart from each other Has pairs of rollers, between which a film web is stretched can be. The elongation takes place in that the two Roller pairs are driven at different speeds, so that it occurs as a result of the thereby occurring in the film web Tension comes to the desired elongation. The regulation of The speed of the roller pairs is relatively complex. Also is for this process required a tear-resistant film web as it otherwise the film web can tear.

Außerdem ist allen bekannten Vorrichtungen gemeinsam, daß der nach einer Produktionspause in der Verpackungsmaschine zwischen der Formstation für die Näpfe und der Siegelstation befindliche, abgekühlte Folienbahnabschnitt nicht, oder nur mit zusätzlichen Aufwand weiterbearbeitet werden kann. Dies deshalb, weil die Napfabstände nach dem Abkühlen der Folienbahn an den jeweiligen Bearbeitungsstationen gegenüber dem kontinuierlichen Normalbetrieb verkürzt sind.It is also common to all known devices that after a production break in the packaging machine between the forming station for the bowls and the sealing station located, cooled film web section not, or only can be further processed with additional effort. This This is because after the cooling of the Film web opposite at the respective processing stations continuous normal operation are shortened.

Die erfindungsgemäße Verpackungsmaschine mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß unabhängig von der Vorschubgeschwindigkeit der Folienbahn oder nach Produktionspausen die Abstände der Näpfe und die Lage der Folienbahn zur Deckfolie an der Siegelstation und nachgeordneten Bearbeitungsstationen stets konstant sind. Dadurch kann nach einer Produktionspause eine bereits abgekühlte Folienbahn weiterbearbeitet werden, wodurch Abfall vermieden wird. Vorteilhaft ist außerdem, daß die Regelung der Napfabstände sehr rasch erfolgt, was insbesondere nach einer Produktionspause von Vorteil ist. Weiterhin können Folienmaterialien mit verschiedenen Materialeigenschaften ohne langwierige Einstellungen an der Verpackungsmaschine verarbeitet werden.The packaging machine according to the invention with the characteristic features of claim 1 has in contrast the advantage that regardless of the feed rate the film web or after breaks in production the distances between  Cups and the position of the film web to the cover film on the Sealing station and downstream processing stations always are constant. This can result in a already cooled film web can be processed further, thereby avoiding waste. It is also advantageous that the regulation of the cup spacing is done very quickly, which is particularly advantageous after a production break. Furthermore, film materials with different Material properties without lengthy adjustments to the Packaging machine can be processed.

Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.Advantageous further developments result itself from the subclaims.

Ein besonders einfacher Aufbau der Vorrichtung läßt sich erzielen, wenn die Siegelwalze selbst kraftbeaufschlagt und als Walzeinrichtung ausgebildet ist.A particularly simple structure of the device can be achieve when the sealing roller itself is subjected to force and is designed as a rolling device.

Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden in der nachfolgenden Beschreibung näher erläutert.Two embodiments of the invention are in the Drawing and are shown in the following Description explained in more detail.

Es zeigen:Show it:

Fig. 1 eine erfindungsgemäße Verpackungsmaschine in einer vereinfachten Seitenansicht und Fig. 1 shows a packaging machine according to the invention in a simplified side view

Fig. 2 einen Teil der Verpackungsmaschine nach Fig. 1 in abgewandelter Form, ebenfalls in vereinfachter Seitenansicht. Fig. 2 shows a part of the packaging machine of FIG. 1 in a modified form, also in a simplified side view.

Die in der Fig. 1 dargestellte Verpackungsmaschine hat eine Formstation 10, die in eine endlose Kunststoffbahn 11 aus thermoplastischem Material Näpfe 12 einformt. Die Kunststoffbahn 11 ist auf einer Vorratsrolle 1 bevorratet und wird mittels Abzugsrollen 2, 3 der Formstation 10 zugeführt. Mittels einer Dosiereinrichtung 15 werden Gegenstände, insbesondere Tabletten 16, Kapseln, Dragees o. ä., in die Näpfe 12 der Bahn 11 abgegeben. Der Dosiereinrichtung 15 nachgeordnet ist eine erste optisch arbeitende Meßeinrichtung 18 zur Erfassung der Napfabstände a von in Förderrichtung hintereinander geförderten Näpfen 12. Die Meßeinrichtung 18 ist mit der Steuereinrichtung 19 der Verpackungsmaschine gekoppelt. An die Meßeinrichtung 18 schließt sich in Förderrichtung der Bahn 11 eine kombinierte Walz- und Siegeleinrichtung 20 an. Die Walz- und Siegeleinrichtung 20 hat eine Siegelwalze 21, in der der Form der Näpfe 12 angepaßte Ausnehmungen 22 ausgebildet sind. Dabei ist die Größe der Ausnehmungen 22 etwas größer als die Größe der Näpfe 12. Die Siegelwalze 21 wirkt mit einer Heizwalze 23 zusammen, deren Temperatur auf ein bestimmtes, konstantes Niveau eingeregelt ist. Die Heizwalze 23 ist über einen Hebel 24 zum Beispiel mit der Kolbenstange 26 eines Stellzylinders 27 verbunden. Die Kolbenstange 26 wirkt mit einer Kraft F auf den Hebel 24, der somit die Heizwalze 23 gegen die Siegelwalze 21 drückt. Die von dem Stellzylinder 27 erzeugte Kraft F ist abhängig von den Napfabständen a, wobei die Steuereinrichtung 20 den Stellzylinder 27 entsprechend ansteuert.The packaging machine shown in FIG. 1 has a molding station 10 which molds cups 12 into an endless plastic web 11 made of thermoplastic material. The plastic web 11 is stored on a supply roll 1 and is fed to the forming station 10 by means of take-off rolls 2 , 3 . Objects, in particular tablets 16 , capsules, coated tablets or the like, are dispensed into the cups 12 of the web 11 by means of a metering device 15 . Downstream of the metering device 15 is a first optically operating measuring device 18 for detecting the cup spacings a of cups 12 which are conveyed one behind the other in the conveying direction. The measuring device 18 is coupled to the control device 19 of the packaging machine. A combined rolling and sealing device 20 connects to the measuring device 18 in the conveying direction of the web 11 . The rolling and sealing device 20 has a sealing roller 21 , in which recesses 22 adapted to the shape of the cups 12 are formed. The size of the recesses 22 is somewhat larger than the size of the cups 12 . The sealing roller 21 interacts with a heating roller 23 , the temperature of which is adjusted to a certain, constant level. The heating roller 23 is connected via a lever 24 to the piston rod 26 of an actuating cylinder 27 , for example. The piston rod 26 acts with a force F on the lever 24 , which thus presses the heating roller 23 against the sealing roller 21 . The force F generated by the actuating cylinder 27 is dependent on the cup spacing a, the control device 20 actuating the actuating cylinder 27 accordingly.

Zwischen der Siegelwalze 21 und der Heizwalze 23 ist über der Bahn 11 noch eine Deckfolienbahn 30 angeordnet. Zur Erkennung der Deckbilder ist vor der Heizwalze 23 ein Druckmarkensensor 37 angeordnet. An die Siegel- 21 und Heizwalze 23 schließen sich eine Transportwalze 34 und eine kombinierte Präge-, Perforier- und Ausstanzeinrichtung 35 an, wobei vor der Transportwalze 34 eine zweite Meßeinrichtung 38 zur Erkennung der Lage der Druckmarke angeordnet sein kann. Die Ausstanzeinrichtung 35 trennt von der Bahn 11 Verpackungsstreifen 36 ab, die jeweils die Breite von zwei Napfreihen aufweisen. Between the sealing roller 21 and the heating roller 23 , a cover foil web 30 is arranged above the web 11 . A print mark sensor 37 is arranged in front of the heating roller 23 in order to recognize the cover images. The sealing roller 21 and heating roller 23 are followed by a transport roller 34 and a combined embossing, perforating and punching device 35 , it being possible for a second measuring device 38 to be arranged in front of the transport roller 34 to detect the position of the print mark. The punching device 35 separates packaging strips 36 from the web 11 , each of which has the width of two rows of naps.

Die oben beschriebene Verpackungsmaschine arbeitet wie folgt: im Normalbetrieb der Verpackungsmaschine gelangen die Näpfe 12 mit bekannter Fördergeschwindigkeit von der Formstation 10 zur Siegelwalze 21 und von dort zur Präge-, Perforier- und Ausstanzeinrichtung 35. Das bedeutet, daß sich die Napfabstände a während des Förderweges der Bahn 11 in bekannter Weise durch Schrumpfung infolge Abkühlung nach der Formstation 10 längs und quer zur Erstreckungsrichtung der Bahn 11 verkürzen. In diesem Fall genügt es, die Heizwalze 23 lediglich mit solch einer Kraft F gegen die Siegelwalze 21 anzudrücken, daß die Deckfolienbahn 30 auf die Oberseite der Bahn 11 aufgesiegelt wird.The packaging machine described above works as follows: during normal operation of the packaging machine, the cups 12 arrive at the known conveying speed from the forming station 10 to the sealing roller 21 and from there to the embossing, perforating and punching device 35 . This means that the Napfabstände a while the conveying path of the web 11 cut in a known manner by shrinkage due to cooling after the forming station 10 along and transverse to the extension direction of the web. 11 In this case, it is sufficient to press the heating roller 23 against the sealing roller 21 only with such a force F that the cover film web 30 is sealed onto the top of the web 11 .

Kommt es hingegen zu einem Produktionstop der Verpackungsmaschine, so kühlt die Bahn 11 innerhalb der Verpackungsmaschine gegenüber dem Normalbetrieb stärker, eventuell sogar vollständig ab. Das bedeutet, daß die Napfabstände a an der Siegelwalze 21 und der Präge-, Perforier- und Stanzeinrichtung 35 gegenüber dem Normalbetrieb geringer sind. Infolgedessen kann es beim Aufsiegeln der Deckfolienbahn 30 zu einem Versatz dieser mit der Bahn 11 kommen, so daß die Druckbilder der Deckfolienbahn 30 nicht mehr positionsgerecht auf der Bahn 11 erscheinen. Weiterhin kann es durch die geringeren Napfabstände a in der Präge-, Perforier- und Ausstanzeinrichtung 35 zu fehlerhaft geprägten oder beschädigten Packungsstreifen 36 kommen. Sobald nun beim Wiederanlaufen der Verpackungsmaschine durch die Meßeinrichtungen 18, 38 die geringeren Napfabstände a erfaßt werden, erzeugt der Stellzylinder 27 aufgrund des Meßsignals der Meßeinrichtungen 18, 38 und einer entsprechenden Ansteuerung der Steuereinrichtung 19 eine erhöhte Kraft F. Der Zusammenhang zwischen der Kraft F, den Dicken D und d der Bahn 11 sowie den Napfabständen a wurde in Meßreihen ermittelt, so daß in der Steuereinrichtung 19 in Abhängigkeit von den Napfabständen a eine zugeordnete Kraft F ermittelt wird, die zu den gewünschten Sollnapfabständen a führt. Diese Abstände a können über die Meßeinrichtung 38 erfaßt werden. Die Kraft F wirkt über den Hebel 24 auf die Heizwalze 23, so daß die zwischen Heiz- 23 und Siegelwalze 21 befindliche Bahn 11 plastisch verformt wird. Demgegenüber wird die Deckfolienbahn 30 nicht oder nur in sehr geringem Umfang verformt. Die Verformung der Bahn 11 bewirkt, daß sich die ursprüngliche Dicke D der Bahn 11 auf die Dicke d reduziert und gleichzeitig die Bahn 11 gelängt wird (Anmerkung: Dicken d und D der besseren Erkennbarkeit in den Figuren nicht maßstäblich dargestellt). Mit der Dickenreduzierung geht somit gleichzeitig eine Vergrößerung der Napfabstände a auf das gewünschte Sollmaß einher. Dieses Sollmaß entspricht den Napfabständen a beim normalem, nicht unterbrochenem Betrieb der Verpackungsmaschine. Infolgedessen kann die gesamte abgekühlte Bahn 11, die sich zwischen der Formstation 10 und der Siegel- 21 und Heizwalze 23 befindet, weiterverarbeitet werden. Bei den üblichen Größenverhältnissen derartiger Verpackungsmaschinen kann diese Folienbahnlänge einige Meter betragen.If, on the other hand, there is a production stop of the packaging machine, the web 11 cools more, possibly even completely, within the packaging machine compared to normal operation. This means that the cup distances a on the sealing roller 21 and the embossing, perforating and punching device 35 are smaller than in normal operation. As a result, when the cover film web 30 is sealed, it can be offset with the web 11 , so that the printed images of the cover film web 30 no longer appear in the correct position on the web 11 . Furthermore, the smaller cup spacings a in the embossing, perforating and punching device 35 can result in incorrectly embossed or damaged packing strips 36 . As soon as during restarting of the packaging machine by the measuring devices 18, 38, the lower Napfabstände a are detected, the actuating cylinder of the measuring devices 18, 38 and a corresponding control of the control means 19 generates 27 due to the measuring signal an increased force F. The relationship between the force F the thicknesses D and d of the web 11 and the bowl spacing a were determined in series of measurements, so that an assigned force F is determined in the control device 19 as a function of the bowl spacing a, which leads to the desired target bowl spacing a. These distances a can be detected via the measuring device 38 . The force F acts on the heating roller 23 via the lever 24 , so that the web 11 located between the heating roller 23 and the sealing roller 21 is plastically deformed. In contrast, the cover film web 30 is not or only to a very small extent deformed. The deformation of the web 11 has the effect that the original thickness D of the web 11 is reduced to the thickness d and at the same time the web 11 is elongated (note: thicknesses d and D are not shown to scale in the figures for better visibility). The reduction in thickness is accompanied by an increase in the bowl spacing a to the desired target size. This nominal dimension corresponds to the cup spacing a during normal, uninterrupted operation of the packaging machine. As a result, the entire cooled web 11 , which is located between the forming station 10 and the sealing roller 21 and heating roller 23 , can be processed further. With the usual proportions of such packaging machines, this length of film web can be a few meters.

Besonders vorteilhaft ist es, wenn die Heizwalze 23 schon während des Normalbetriebs der Verpackungsmaschine mit einer derartig hohen Kraft F beaufschlagt wird, daß die Bahn 11 geringfügig plastisch verformt wird. Das bedeutet, daß die Napfabstände a nach der Heizwalze 23 um ein bestimmtes Maß vergrößert sind. In diesem Fall sind selbstverständlich nachgeordnete Einrichtungen, wie die Präge-, Perforier- und Ausstanzeinrichtung 35 den geänderten geometrischen Verhältnissen der Bahn 11 anzupassen. Das eben beschriebene Verfahren hat den Vorteil, daß die Napfabstände a nicht nur vergrößert, sondern bei reduzierter Kraft F, auch verkleinert werden können. Somit können also auch Maschinentoleranzen oder Toleranzen bei geändertem Material der Bahn 11 ausgeglichen werden. Weiterhin ist es denkbar, mittels einer der Präge-, Perforier- und Ausstanzeinrichtung 35 nachgeordneten Kontrolleinrichtung zur Erfassung der geometrischen Daten ausgestanzter Packungsstreifen 36 die Kraft F zusätzlich zu regeln.It is particularly advantageous if the heating roller 23 is already subjected to such a high force F during normal operation of the packaging machine that the web 11 is slightly plastically deformed. This means that the cup distances a after the heating roller 23 are increased by a certain amount. In this case, of course, subordinate devices such as the embossing, perforating and punching device 35 must be adapted to the changed geometric conditions of the web 11 . The method just described has the advantage that the cup spacings a can not only be increased, but also reduced with a reduced force F. Thus, machine tolerances or tolerances in the changed material of the web 11 can also be compensated for. Furthermore, it is conceivable to additionally regulate the force F by means of a control device arranged downstream of the embossing, perforating and punching device 35 for detecting the geometrical data of punched-out packing strips 36 .

Bei dem Ausführungsbeispiel nach der Fig. 2 ist zwischen der Meßeinrichtung 18a und der Siegel- 21a und Heizwalze 23a eine Walzeinrichtung 40 angeordnet. Die Walzeinrichtung 40 hat eine Transportwalze 41 und ein Andrückwalze 42. Die Andrückwalze 42 ist wie die Heizwalze 23 beim Ausführungsbeispiel nach Fig. 1 über einen Hebel 24a mit einer Kraft F kraftbeaufschlagt. Die Funktions- und Arbeitsweise der Transportwalze 41 und der Andrückwalze 42 entspricht der der Siegel- 21 und Heizwalze 23 beim ersten Ausführungsbeispiel. Im Gegensatz zum ersten Ausführungsbeispiel dienen die Siegel- 21a und die Heizwalze 23a bei der Fig. 2 lediglich zum Aufsiegeln der Deckfolienbahn 30a auf die Bahn 11a, so daß in diesem Bereich keine oder lediglich eine geringe Verformung der Bahn 11a stattfindet. Ferner ist im Bereich der noch ungesiegelten Deckfolienbahn 30a ein Druckmarkenerkennungssensor 37 angeordnet. Der Druckmarkenerkennungssensor ist über die Steuereinrichtung der Verpackungsmaschine mit der Walzeinrichtung 40 gekoppelt. Bei diesem Ausführungsbeispiel ist es ebenfalls möglich, über eine gezielte Beeinflussung der Napfabstände a die Position der Druckbilder der Deckfolienbahn 30a zu regeln. Weiterhin besteht wie beim ersten Ausführungsbeispiel weiterhin die Möglichkeit, die Napfabstände a über die Meßeinrichtung 18a wie oben beschrieben, zum Beispiel nach Produktionspausen, zu beeinflussen.In the embodiment according to FIG. 2, a rolling device 40 is arranged between the measuring device 18 a and the sealing roller 21 a and heating roller 23 a. The roller device 40 has a transport roller 41 and a pressure roller 42 . The pressure roller 42 , like the heating roller 23 in the exemplary embodiment according to FIG. 1, is subjected to a force F via a lever 24 a. The function and operation of the transport roller 41 and the pressure roller 42 corresponds to that of the sealing roller 21 and heating roller 23 in the first embodiment. In contrast to the first embodiment, the sealing serve 21a and the heat roller 23 a in Fig. 2 only for sealing the top film web 30 a on the track 11 a, so that in this area no or only a slight deformation of the web 11 a takes place . Furthermore, a print mark detection sensor 37 is arranged in the region of the still unsealed cover film web 30 a. The print mark detection sensor is coupled to the roller device 40 via the control device of the packaging machine. In this exemplary embodiment, it is also possible to regulate the position of the printed images of the cover film web 30 a by specifically influencing the cup spacing a. Furthermore, as in the first exemplary embodiment, there is also the possibility of influencing the cup spacings a via the measuring device 18 a as described above, for example after production breaks.

Claims (4)

1. Verpackungsmaschine mit einer Einrichtung (10) zum Einformen von Näpfen (12) in einen aus thermoplastischem Material bestehenden Folienstrang (11; 11a), einer Einrichtung (15) zum Abgeben von Gegenständen (16), bzw. von Tabletten, Kapseln, Dragees o.a. in die Näpfe (12) des Folienstrangs (11; 11a), einer Siegeleinrichtung (21, 23; 21a, 23a) zum Verschließen des Folienstrangs (11; 11a) mit einer Deckfolie (30; 30a), mindestens einer Einrichtung (18, 38; 18a) zur Erkennung von Napfabständen (a), sowie mit mindestens einer der Siegeleinrichtung (21, 23; 21a, 23a) nachgeordneten Einrichtung (35, 35a) zur Bearbeitung des Folienstrangs (11; 11a), dadurch gekennzeichnet, daß die Einrichtung (18, 38; 18a) zur Erkennung der Napfabstände (a) mit einer Walzeinrichtung (20; 40) zur plastischen Verformung des Folienstrangs (11; 11a) gekoppelt ist, welche eine erste beheizte Walze (23; 42) umfaßt, die mit einer Gegenwalze (21; 41) zusammenwirkt, und daß die Walzen (23; 42) entsprechend der Napfabstände (a) mit einer auf den Walzspalt wirkenden Kraft (F) beaufschlagt werden.1. Packaging machine with a device ( 10 ) for molding cups ( 12 ) into a film strand ( 11 ; 11 a) consisting of thermoplastic material, a device ( 15 ) for dispensing objects ( 16 ), or tablets, capsules, Dragees or the like in the wells ( 12 ) of the film strand ( 11 ; 11 a), a sealing device ( 21 , 23 ; 21 a, 23 a) for closing the film strand ( 11 ; 11 a) with a cover film ( 30 ; 30 a), at least one device ( 18 , 38 ; 18 a) for detecting well spacing (a), and with at least one device ( 35 , 35 a) downstream of the sealing device ( 21 , 23 ; 21 a, 23 a) for processing the film strand ( 11 ; 11 a), characterized in that the device ( 18 , 38 ; 18 a) for detecting the cup spacing (a) is coupled to a roller device ( 20 ; 40 ) for plastic deformation of the film strand ( 11 ; 11 a), which one comprises first heated roller ( 23 ; 42 ) with a counter roller ( 21 ; 41 ) cooperates, and that the rollers ( 23 ; 42 ) are subjected to a force (F) acting on the roll gap in accordance with the cup spacing (a). 2. Verpackungsmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die erste Walze (23; 42) über einen Hebel (24; 24a) mit einem Stellzylinder (27) verbunden ist.2. Packaging machine according to claim 1, characterized in that the first roller ( 23 ; 42 ) via a lever ( 24 ; 24 a) is connected to an actuating cylinder ( 27 ). 3. Verpackungsmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Walzeinrichtung (20) Bestandteil der Siegeleinrichtung (21, 23) ist.3. Packaging machine according to claim 1 or 2, characterized in that the rolling device ( 20 ) is part of the sealing device ( 21 , 23 ). 4. Verpackungsmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Walzeinrichtung (40) in Förderrichtung vor der Siegeleinrichtung (21a, 23a) angeordnet ist.4. Packaging machine according to claim 1 or 2, characterized in that the rolling device ( 40 ) is arranged in the conveying direction in front of the sealing device ( 21 a, 23 a).
DE19504219A 1995-02-09 1995-02-09 Packaging machine Expired - Fee Related DE19504219C1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19504219A DE19504219C1 (en) 1995-02-09 1995-02-09 Packaging machine
PCT/DE1996/000101 WO1996024523A1 (en) 1995-02-09 1996-01-25 Packaging machine for sealing a cover foil strip onto a plastics web which comprises cups
EP96900848A EP0760781A1 (en) 1995-02-09 1996-01-25 Packaging machine for sealing a cover foil strip onto a plastics web which comprises cups
JP8523883A JPH09511727A (en) 1995-02-09 1996-01-25 Packaging machine
CN96190041A CN1146755A (en) 1995-02-09 1996-01-25 Packaging machine for sealing a cover foil strip onto a plastics web which comprises cups

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DE19504219A DE19504219C1 (en) 1995-02-09 1995-02-09 Packaging machine

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DE19504219C1 true DE19504219C1 (en) 1996-06-05

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JP (1) JPH09511727A (en)
CN (1) CN1146755A (en)
DE (1) DE19504219C1 (en)
WO (1) WO1996024523A1 (en)

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WO1999040046A1 (en) * 1998-02-06 1999-08-12 Basf Aktiengesellschaft Film-coated fertilizer with targeted release of nutrients
WO2007107021A1 (en) * 2006-03-20 2007-09-27 Rohrer Ag Method for connecting covering film pieces to base film pieces
CN103373493A (en) * 2012-04-18 2013-10-30 天津市山佳医药科技有限公司 Three-roll linkage hot pressing sealing system for magnetic powder bagging
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DE102020005089A1 (en) 2020-08-19 2022-02-24 Romaco Pharmatechnik Gmbh Packaging machine for packaging pharmaceutical products in blister packs

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GB2438186A (en) * 2006-05-19 2007-11-21 Meadwestvaco Packaging Systems Blister packaging apparatus
BR112014021374B1 (en) * 2012-02-28 2021-02-09 The Procter & Gamble Company packaging forming apparatus
ES2805229T3 (en) 2016-10-28 2021-02-11 Multivac Haggenmueller Kg Deep Drawing Packaging Machine
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WO2019219967A1 (en) * 2018-05-18 2019-11-21 Gea Food Solutions Germany Gmbh Method for controlling the position of a material web edge
CN112319885B (en) * 2020-12-01 2022-05-17 广东顶鑫农业供应链集团有限公司 Food preservative film packaging guiding and covering device

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DE3912054A1 (en) * 1989-04-13 1990-10-18 Iwk Verpackungstechnik Gmbh Automatic confectionery packing machine - has pockets formed in strip of plastics film at same spacing as images on cover strip
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WO1999040046A1 (en) * 1998-02-06 1999-08-12 Basf Aktiengesellschaft Film-coated fertilizer with targeted release of nutrients
WO2007107021A1 (en) * 2006-03-20 2007-09-27 Rohrer Ag Method for connecting covering film pieces to base film pieces
CN103373493A (en) * 2012-04-18 2013-10-30 天津市山佳医药科技有限公司 Three-roll linkage hot pressing sealing system for magnetic powder bagging
CN103373493B (en) * 2012-04-18 2015-12-02 天津市山佳医药科技有限公司 Magnetic powder packed three-roller linkage hot pressing sealing system
DE102019005813B3 (en) * 2019-08-21 2020-12-17 Romaco Pharmatechnik Gmbh Heat sealing device
DE102020005089A1 (en) 2020-08-19 2022-02-24 Romaco Pharmatechnik Gmbh Packaging machine for packaging pharmaceutical products in blister packs

Also Published As

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CN1146755A (en) 1997-04-02
WO1996024523A1 (en) 1996-08-15
JPH09511727A (en) 1997-11-25
EP0760781A1 (en) 1997-03-12

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