WO1996026066A1 - Blister packages sealing device - Google Patents

Blister packages sealing device Download PDF

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Publication number
WO1996026066A1
WO1996026066A1 PCT/DE1996/000141 DE9600141W WO9626066A1 WO 1996026066 A1 WO1996026066 A1 WO 1996026066A1 DE 9600141 W DE9600141 W DE 9600141W WO 9626066 A1 WO9626066 A1 WO 9626066A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
roller
feed roller
cylinder
heat
Prior art date
Application number
PCT/DE1996/000141
Other languages
German (de)
French (fr)
Inventor
Klaus Reum
Eberhard Krieger
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 JP8525285A priority Critical patent/JPH09512237A/en
Priority to EP96900878A priority patent/EP0757620A1/en
Publication of WO1996026066A1 publication Critical patent/WO1996026066A1/en

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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
    • B29C66/80—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
    • B29C66/822—Transmission mechanisms
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
    • B29C66/82265—Eccentric mechanisms
    • 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
    • B29C66/80—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
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/005—Safety-devices
    • 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

Definitions

  • the invention is based on a device for heat sealing a heat-sealable cover film with a thermoformed blister for receiving objects containing thermoplastic container film according to the
  • the heat sealing device according to the invention with the characterizing features of claim 1 has the advantage that no packs with leaky or unclean spots are generated by the double sealing of the area of the cover film which was in contact with the sealing roller when the operation was interrupted, so that on
  • FIG. 1 shows a first exemplary embodiment of a roll heat sealing device in the operating position in a side view
  • FIGS. 2 and 3 show the roll heat sealing device according to FIG. 1 in a safety and recommissioning position in a side view
  • FIGS. 4 and 5 show a second exemplary embodiment of a roll heat sealing device in the operating position. and safety position in side view.
  • a heat sealing device In a machine for thermoforming blisters 2 in a thermoplastic film 1 and for filling the blisters 2 with objects to be packed, a heat sealing device is arranged, which has a feed roller 11 and a heatable sealing roller 12 pressed against its circumference.
  • the film 1 with the filled blisters 2 is fed to the feed roller 1 in a horizontal plane and deflected downward on the feed roller 11 in an arc of approximately 100 degrees.
  • a heat-sealable cover film 3 is fed to this sheet path from above, which is pressed linearly against the film 1 by the sealing roller 12 and which is sealed by the transfer of heat and pressure with the film 1 during continuous conveying (FIG. 1, FIG. 4).
  • the sealing roller 12 is, in order to prevent the part of the cover film 3 and the film 1 acted upon by the sealing roller 12 from overheating and possibly burning when the machine is at a standstill, can be lifted off the feed roller 11, and is moved out of the working position when the machine is at a standstill placed in a safety position ( Figure 2 and Fig ⁇ .r 5).
  • the sealing roller 12 is rotatably mounted on a pivotable lever 15.
  • the area of the cover film 3 which was previously acted upon when the sealing roller 12 was lifted is sealed without defects and leaks when the sealing roller 12 is put back on when the sealing is resumed, the sealing roller 12 or the feed roller 11 to each other by one certain angle adjusted so that when operation resumes, the sealing roller 12 rests on an area of the cover sheet 3 which has already been sealed and is then sealed a second time.
  • the lever 15 carrying the sealing roller 12 is mounted on an eccentric pin 16 of a bearing pin 17, which in turn is mounted in a stationary bearing block 18.
  • the bearing pin 17 By rotating the bearing pin 17 by a quarter to a half turn by means of an arm 19, the axis of rotation of the eccentric pin 16 is thereby adjusted to the position of the feed roller 12.
  • the bearing pin 17 is slowly turned back into its initial position, so that the sealing roller 12 returns to its working position.
  • the sealing end region is covered by the sealing roller 12 in that in the drive system or gearbox of the feed roller 11, the feed roller 11 is turned back by an angle ⁇ of the order of 5 to 15 degrees (FIG 5). This reverse rotation of the preferred roller 11 can be superimposed on the transmission or the drive
  • Reverse rotation can be carried out. After the machine has been started up, this reverse rotation is slowly corrected again, so that the sealing roller 12 returns to its working position after a certain time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

A hot-sealing device for a hot-sealable covering foil (3) with a thermoplastic container foil (1) having a heat-shaped blister (2) for receiving objects has a feed cylinder (11) and a heated sealing cylinder (12) whose axis is parallel to the axis of the feed cylinder (11) and that is pressed against the latter. In order to prevent the foils (1, 3) from overheating during standstill of the device, the sealing cylinder (12) is lifted off the feed cylinder (11), that acts as a counterpressure cylinder, when the device is at a standstill. In addition, to avoid untight areas or other sealing defects of the sealed foils (1, 3) when the sealing cylinder (12) is again applied on the feed cylinder (11) when the device resumes operation, the sealing cylinder (12) is positioned in relation to the feed cylinder (11) so that the previously sealed end section of the foil be sealed once again. Alternatively, the feed cylinder (11) is rotated backwards over a determined angle, against the direction of transport, when the sealing cylinder (12) is lifted off the feed cylinder (11) during standstill.

Description

Vorrichtung zum Versiegeln von BlisterpackungenDevice for sealing blister packs
Stand der TechnikState of the art
Die Erfindung geht aus von einer Vorrichtung zum Heißversiegeln einer heißsiegelfähigen Deckfolie mit einer thermogeformten Blister zur Aufnahme von Gegenständen aufweisenden thermoplastischen Behälterfolie nach demThe invention is based on a device for heat sealing a heat-sealable cover film with a thermoformed blister for receiving objects containing thermoplastic container film according to the
Oberbegriff des Anspruchs 1. Um zu verhindern, daß bei einer Vorrichtung dieser Art bei einem durch eine Maschinenstörung bedingten Stillstand der Vorrichtung die Siegelschicht der Deckfolie bzw. die Behälterfolie durch die Wärmeeinwirkung der Siegelwalze in deren Kontaktbereich überhitzen oder verbrennen, wird bei bekannten Vorrichtungen der oben angeführten Art die Siegelwalze aus der Arbeitsstellung in eine Sicherheitsstellung verschwenkt, in der die Siegelwalze von der Deckfolie beabstandet ist. Bei Wiederinbetriebnahme der Vorrichtung wird die Siegelwalze dann wieder in die Arbeitsstellung verbracht und die Vorzugwalze wieder angetrieben, so daß die Produktion weitergeführt wird. Es zeigt sich aber, daß Blisterpackungen, die durch eine unterbrochene Siegelung verschlossen worden sind, undichte und unsaubere Stellen aufweisen. Diese Packungen werden dann registriert und als Ausschuß ausgeschieden.Preamble of claim 1. In order to prevent a device of this type from overheating or burning the sealing layer of the cover film or the container film due to the heat of the sealing roller in its contact area when the device comes to a standstill due to a machine malfunction, known devices use the above mentioned type, the sealing roller is pivoted out of the working position into a safety position in which the sealing roller is spaced from the cover film. When the device is put back into operation, the sealing roller is then brought back into the working position and the feed roller is driven again, so that production is continued. It turns out, however, that blister packs which have been sealed by an interrupted seal have leaky and unclean spots. These packs are then registered and discarded as a committee.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Heißsiegelvorrichtung mit den kennzeichnenden Merkmalen des Anspruch 1 hat den Vorteil, daß durch die doppelte Siegelung des Bereichs der Deckfolie, der bei der Unterbrechung des Betriebs im Kontakt mit der Siegelwalze war, keine Packungen mit undichten oder unsauberen Stellen erzeugt werden, so daß auf einThe heat sealing device according to the invention with the characterizing features of claim 1 has the advantage that no packs with leaky or unclean spots are generated by the double sealing of the area of the cover film which was in contact with the sealing roller when the operation was interrupted, so that on
Registrieren und Ausscheiden von Packungen verzichtet werden kann. Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen der im Anspruch 1 angegebenen Heißsiegelvorrichtung möglich. Besonders vorteilhaft ist die Ausbildung nach Anspruch 2, die eine besonders einfache mechanische Lösung darstellt. Aber auch die Ausbildung nach Anspruch 4 beruht auf einem einfachen steuerungstechnischen Prinzip.Registering and eliminating packs can be dispensed with. The measures listed in the subclaims allow advantageous developments of the heat sealing device specified in claim 1. The embodiment according to claim 2, which represents a particularly simple mechanical solution, is particularly advantageous. But also the training according to claim 4 is based on a simple control principle.
Zeichnungdrawing
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und werden im folgenden näher beschrieben. Es zeigen Figur 1 ein erstes Ausführungsbeispiel einer Walzen-Heißsiegelvorrichtung in Betriebsstellung in Seitenansicht, Figuren 2 und 3 die Walzen-Heißsiegelvorrichtung nach Figur 1 in einer Sicherheits- und Wiederinbetriebnahmestellung in Seitenansicht und Figur 4 und 5 ein zweites Ausführungsbeispiel einer Walzen-Heißsiegelvorrichtung in Betriebs- und Sicherheitsstellung in Seitenansicht. Two embodiments of the invention are shown in simplified form in the drawing and are described in more detail below. 1 shows a first exemplary embodiment of a roll heat sealing device in the operating position in a side view, FIGS. 2 and 3 show the roll heat sealing device according to FIG. 1 in a safety and recommissioning position in a side view, and FIGS. 4 and 5 show a second exemplary embodiment of a roll heat sealing device in the operating position. and safety position in side view.
Beschreibung der AusführungsbeispieleDescription of the embodiments
In einer Maschine zum Thermoformen von Blistern 2 in einer thermoplastischen Folie 1 und zum Befüllen der Blister 2 mit zu verpackenden Gegenständen ist eine Heißsiegelvorrichtung angeordnet, die eine Vorzugwalze 11 und eine gegen deren Umfang angepreßte, beheizbare Siegelwalze 12 aufweist. Die Vorzugwalze 11, in deren Umfang Mulden 13 zur Aufnahme der Blister 2 der Folie 1 angeordnet sind, ist in einem Drehlager 14 horizontal gelagert und wird während des Betriebs kontinuierlich angetrieben. Die Folie 1 mit den gefüllten Blistern 2 wird der Vorzugwalze 1 in waagrechter Ebene zugeleitet und auf der Vorzugwalze 11 in einem Bogen von etwa 100 Grad nach unten umgelenkt. Dieser Bogenstrecke wird von oben eine heißsiegelfähige Deckfolie 3 zugeleitet, welche durch die Siegelwalze 12 gegen die Folie 1 linienförmig angedrückt wird und welche dabei durch Übertragung von Wärme und Druck mit der Folie 1 beim kontinuierlichen Fördern versiegelt (Figur 1, Figur 4) wird. Die Siegelwalze 12 ist, um zu verhindern, daß bei einem Stillstand der Maschine der von der Siegelwalze 12 beaufschlagte Teil der Deckfolie 3 und der Folie l überhitzt und gegebenenfalls verbrennt, von der Vorzugwalze 11 abhebbar angeordnet, und wird bei Stillstand der Maschine aus der Arbeitsstellung in eine Sicherheitsstellung verbracht (Figur 2 und Figμ.r 5) . Die Siegelwalze 12 ist dazu auf einem schwenkbaren Hebel 15 drehbar gelagert.In a machine for thermoforming blisters 2 in a thermoplastic film 1 and for filling the blisters 2 with objects to be packed, a heat sealing device is arranged, which has a feed roller 11 and a heatable sealing roller 12 pressed against its circumference. The feed roller 11, in the circumference of which troughs 13 for receiving the blisters 2 of the film 1 are arranged, is mounted horizontally in a rotary bearing 14 and is continuously driven during operation. The film 1 with the filled blisters 2 is fed to the feed roller 1 in a horizontal plane and deflected downward on the feed roller 11 in an arc of approximately 100 degrees. A heat-sealable cover film 3 is fed to this sheet path from above, which is pressed linearly against the film 1 by the sealing roller 12 and which is sealed by the transfer of heat and pressure with the film 1 during continuous conveying (FIG. 1, FIG. 4). The sealing roller 12 is, in order to prevent the part of the cover film 3 and the film 1 acted upon by the sealing roller 12 from overheating and possibly burning when the machine is at a standstill, can be lifted off the feed roller 11, and is moved out of the working position when the machine is at a standstill placed in a safety position (Figure 2 and Figμ.r 5). For this purpose, the sealing roller 12 is rotatably mounted on a pivotable lever 15.
Um außerdem sicherzustellen, daß nach Beendigung des Stillstands der Maschine der zuvor beim Abheben der Siegelwalze 12 gerade beaufschlagte Bereich der Deckfolie 3 ohne Defekt und Undichtheit beim Wiederanlegen der Siegelwalze 12 bei der Wiederaufnahme der Siegelung gesiegelt wird, wird zu Beginn der Stillstandszeit der Siegelwalze 12 oder der Vorzugwalze 11 zueinander um einen bestimmten Winkel verstellt, so daß bei Wiederaufnahme des Betriebs die Siegelwalze 12 auf einem Bereich der Deckfolie 3 anliegt, der bereits zuvor gesiegelt worden ist und darauf ein zweites Mal gesiegelt wird.In addition, to ensure that after the machine has come to a standstill, the area of the cover film 3 which was previously acted upon when the sealing roller 12 was lifted is sealed without defects and leaks when the sealing roller 12 is put back on when the sealing is resumed, the sealing roller 12 or the feed roller 11 to each other by one certain angle adjusted so that when operation resumes, the sealing roller 12 rests on an area of the cover sheet 3 which has already been sealed and is then sealed a second time.
Beim Ausführungsbeispiel nach den Figuren 1 bis 3 ist dazu der die Siegelwalze 12 tragende Hebel 15 auf einem Exzenterzapfen 16 eines Lagerbolzens 17 gelagert, welcher seinerseits in einem ortsfesten Lagerbock 18 gelagert ist. Durch Verdrehen des Lagerbolzens 17 um eine viertel bis halbe Umdrehung mittels eines Armes 19 wird dadurch die Drehachse des Exzenterzapfens 16 zur Lage der Vorzugwalze 12 verstellt. Die Anordnung wird so gewählt, daß beim Wiederanlegen der Siegelwalze 12 an der Vorzugwalze 11, die als Gegenlager beim Siegeln wirkt, die Beaufschlagungslinie im Bereich der vor dem Abheben der Siegelwalze 12 bereits gesiegelten Fläche um eine Länge von A = 5 bis 10 mm liegt. Dadurch entsteht eine Siegelungsüberdeckung, die eine gleichmäßige Siegelung am Ansatzbereich sicherstellt. Während des weiteren Betriebs wird der Lagerbolzen 17 langsam wieder in seine Auεgangslage zurückgedreht, so daß die Siegelwalze 12 wieder ihre Arbeitsstellung einnimmt.In the exemplary embodiment according to FIGS. 1 to 3, the lever 15 carrying the sealing roller 12 is mounted on an eccentric pin 16 of a bearing pin 17, which in turn is mounted in a stationary bearing block 18. By rotating the bearing pin 17 by a quarter to a half turn by means of an arm 19, the axis of rotation of the eccentric pin 16 is thereby adjusted to the position of the feed roller 12. The arrangement is chosen so that when the sealing roller 12 is re-applied to the feed roller 11, which acts as a counter-bearing during sealing, the line of action in the area of the surface which has already been sealed before the sealing roller 12 is lifted is by a length of A = 5 to 10 mm. This creates a sealing overlap that ensures an even seal at the attachment area. During further operation, the bearing pin 17 is slowly turned back into its initial position, so that the sealing roller 12 returns to its working position.
Beim Ausführungsbeispiel nach den Figuren 4 und 5 wird eine Überdeckung des Siegelendbereichs durch die Siegelwalze 12 dadurch erzielt, daß im Antriebssystem oder -getriebe der Vorzugwalze 11 eine Rückdrehung der Vorzugwalze 11 um einen Winkel α in der Größenordnung von 5 bis 15 Grad eingesteuert wird (Figur 5) . Diese Rückdrehung der Vorzugwalze 11 kann durch eine dem Getriebe oder dem Antrieb überlagerteIn the exemplary embodiment according to FIGS. 4 and 5, the sealing end region is covered by the sealing roller 12 in that in the drive system or gearbox of the feed roller 11, the feed roller 11 is turned back by an angle α of the order of 5 to 15 degrees (FIG 5). This reverse rotation of the preferred roller 11 can be superimposed on the transmission or the drive
Rückdrehung durchgeführt werden. Nach Inbetriebnahme der Maschine wird diese Rückdrehung wieder langsam korrigiert, so daß die Siegelwalze 12 nach einer bestimmten Zeit wieder ihre Arbeitsstellung einnimmt. Reverse rotation can be carried out. After the machine has been started up, this reverse rotation is slowly corrected again, so that the sealing roller 12 returns to its working position after a certain time.

Claims

Ansprüche Expectations
1. Vorrichtung zum Heißversiegeln einer heißsiegelfähigen Deckfolie (3) mit einer thermogeformte Blister (2) zur Aufnahme von Gegenständen aufweisenden thermoplastischen Behälterfolie (1), mit einer Ausnehmungen (13) für die Blister (2) aufweisenden, kontinuierlich angetriebenen Vorzugwalze (11) für die Behälterfolie (1) , mit einer parallelachsigen, gegen den Umfang der Vorzugwalze (11) gedrückten beheizten Siegelwalze (12) , die die Deckfolie (3) mit der von der Vorzugwalze (11) unterstützten Behälterfolie (1) in Kontakt hält und diese durch Übertragung von Wärme und Druck mit der Behälterfolie (1) während des Vorzugs der Folien (1, 3) versiegelt, und mit einer Sicherheits- Einrichtung zum außer Kontakt bringen der Siegelwalze (12) mit der Deckfolie (3) bei Stillstand der Vorzugwalze (11), gekennzeichnet durch eine Stelleinrichtung (16, 17) zum Verstellen der Siegelwalze (12) und/oder der Vorzugwalze1. Device for heat sealing a heat-sealable cover film (3) with a thermoformed blister (2) for receiving objects containing thermoplastic container film (1), with a recesses (13) for the blister (2) having continuously driven feed roller (11) for the container film (1) with a parallel-axis, heated sealing roller (12) pressed against the circumference of the feed roller (11), which keeps the cover film (3) in contact with the container film (1) supported by the feed roller (11) and through it Transfer of heat and pressure with the container film (1) while the films (1, 3) are being sealed, and sealed with a safety device to bring the sealing roller (12) out of contact with the cover film (3) when the preferred roller (11 ), characterized by an adjusting device (16, 17) for adjusting the sealing roller (12) and / or the feed roller
(11) relativ zueinander um einen bestimmten Winkel zur Drehachse der Vorzugwalze (11) , derart, daß die Siegelwalze(11) relative to each other by a certain angle to the axis of rotation of the feed roller (11), such that the sealing roller
(12) bei Wiederaufnahme des Betriebs mit einem Bereich der Deckfolie (3) in Kontakt kommt, der bereits vor dem(12) comes back into operation with an area of the cover film (3) that comes before
Stillstand der Vorrichtung mit der Behälterfolie (1) versiegelt worden ist.Standstill of the device with the container film (1) has been sealed.
2. Heißsiegelvorrichtung na,ch Anspruch 1, dadurch gekennzeichnet, daß die Stelleinrichtung (16, 17) an der Halterung (15) der Siegelwalze (12) angreift und diese bei Stillstand der Vorzugwalze (11) in deren Förderrichtung um einen bestimmten Weg verschiebt und nach Wiederaufnahme des Betriebs bei gegen die Vorzugwalze (11) gedrückter Siegelwalze (12) diese wieder in die normale Arbeitsstellung verbringt. 2. Heat sealing device na, ch claim 1, characterized in that the actuating device (16, 17) on the holder (15) of the sealing roller (12) engages and moves this when the preferred roller (11) in its conveying direction by a certain path and after resuming operation with the sealing roller (12) pressed against the feed roller (11), the roller returns to the normal working position.
3. Heißsiegelvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Stelleinrichtung eine Exzenterlagerung (16, 17) an der Halterung (15) der Siegelwalze (12) aufweist.3. Heat sealing device according to claim 2, characterized in that the adjusting device has an eccentric bearing (16, 17) on the holder (15) of the sealing roller (12).
4. Heißsiegelvorrichtung nach Anspruch l, dadurch gekennzeichnet, daß die Stelleinrichtung (16, 17) dem Antrieb der Vorzugwalze (11) zugeordnet und derart ausgebildet ist, daß bei Stillstand der Vorzugwalze (11) diese zugleich um einen bestimmten Drehwinkel entgegengesetzt zur Förderrichtung zurückgedreht wird. 4. Heat sealing device according to claim l, characterized in that the actuating device (16, 17) is assigned to the drive of the feed roller (11) and is designed such that when the feed roller (11) is at a standstill, the feed roller (11) is rotated back at the same time in a direction opposite to the conveying direction .
PCT/DE1996/000141 1995-02-23 1996-02-01 Blister packages sealing device WO1996026066A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP8525285A JPH09512237A (en) 1995-02-23 1996-02-01 Sealing device for recess type packaging container
EP96900878A EP0757620A1 (en) 1995-02-23 1996-02-01 Blister packages sealing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19506283A DE19506283A1 (en) 1995-02-23 1995-02-23 Device for sealing blister packs
DE19506283.3 1995-02-23

Publications (1)

Publication Number Publication Date
WO1996026066A1 true WO1996026066A1 (en) 1996-08-29

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EP (1) EP0757620A1 (en)
JP (1) JPH09512237A (en)
CN (1) CN1145601A (en)
DE (1) DE19506283A1 (en)
WO (1) WO1996026066A1 (en)

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DE10341450A1 (en) * 2003-09-09 2005-03-31 Robert Bosch Gmbh Machine for coding blister strip packages for tablets has sealing roller which attaches foil backing to plastic cover sheet which cooperates with counter-roller with embossing strips on its surface to code packages
DE102004010202B3 (en) * 2004-03-02 2005-03-10 Uhlmann Pac Systeme Gmbh & Co Sealing device for shaped foil with drawn cups has sensor to detect position of at least one drawn cup
DE102004012449B4 (en) * 2004-03-13 2006-07-13 Uhlmann Pac-Systeme Gmbh & Co. Kg Sealing station for a film with products contained in wells, to be covered by a sealing film, has a counter roller with recesses to take the film wells and a sensor to set the roller drive for an exact fit of wells into recesses
ITMO20080063A1 (en) * 2008-03-05 2009-09-06 Inovapak Srl EQUIPMENT AND METHODS FOR PRODUCING CONTAINERS
CN106314886A (en) * 2016-08-27 2017-01-11 浙江亚利大胶丸有限公司 Capsule plate sealing device

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FR2086004A3 (en) * 1970-04-13 1971-12-31 Jones & Co Inc R A
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EP0436476A1 (en) * 1989-12-29 1991-07-10 Massimo Marchesini Device carrying out the heat sealing of a film onto a blister band, particularly a polypropylene band

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Also Published As

Publication number Publication date
CN1145601A (en) 1997-03-19
EP0757620A1 (en) 1997-02-12
JPH09512237A (en) 1997-12-09
DE19506283A1 (en) 1996-08-29

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