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DE19601598A1 - Device for producing tubular bag packs - Google Patents

Device for producing tubular bag packs

Info

Publication number
DE19601598A1
DE19601598A1 DE1996101598 DE19601598A DE19601598A1 DE 19601598 A1 DE19601598 A1 DE 19601598A1 DE 1996101598 DE1996101598 DE 1996101598 DE 19601598 A DE19601598 A DE 19601598A DE 19601598 A1 DE19601598 A1 DE 19601598A1
Authority
DE
Germany
Prior art keywords
sealing
jaws
pairs
devices
tubular bag
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.)
Granted
Application number
DE1996101598
Other languages
German (de)
Other versions
DE19601598C2 (en
Inventor
Willi Dipl Ing Stirnkorb
Martin Dipl Ing Beck
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 DE1996101598 priority Critical patent/DE19601598C2/en
Priority to PCT/DE1996/002503 priority patent/WO1997026189A1/en
Priority to ZA97374A priority patent/ZA97374B/en
Publication of DE19601598A1 publication Critical patent/DE19601598A1/en
Application granted granted Critical
Publication of DE19601598C2 publication Critical patent/DE19601598C2/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
    • 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
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • 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
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8227—Transmission mechanisms using springs
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself

Landscapes

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

Abstract

The invention concerns a machine for filling and sealing plastic bags, the machine producing two sealed bags (6) per operating cycle. The machine has a cross-weld sealing device (20) with two sealing units (21, 22). Each sealing unit (21, 22) has a pair of sealing heads (31, 32 and 131, 132) as well as pairs of grippers (33, 34; 35, 36 and 133, 134; 135, 136) located immediately above and below the sealing heads. In order to produce a high-quality seal across the bags (6), each of the sealing heads has its own drive in the form of a hydraulic cylinder (44, 45, 50 and 144, 145, 150), whereas the gripper arms which are moved in the same direction (33, 35 and 134, 136 plus 133, 135 and 34, 36) in the two sealing units (21, 22) have common drives in the form of pneumatic cylinders (65, 66 and 165, 166).

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einer Vorrichtung zum Herstellen von Schlauchbeutelpackungen nach der Gattung des Anspruchs 1.The invention is based on a device for manufacturing of tubular bag packs according to the preamble of the claim 1.

Außer den vielfach bekannten Vorrichtungen mit einer einzigen Schlauchformeinrichtung (sogenannte Simplex- Maschinen) und dementsprechend einer einzigen Quernahtsiegeleinrichtung sind auch sogenannte Duplex- Maschinen mit zwei parallel zueinander angeordneten Schlauchformeinrichtungen bekannt, auf denen bei jedem Arbeitszyklus jeweils zwei Schlauchbeutelpackungen gefertigt werden. Diese Maschinen haben, wie die Simplex-Maschinen, nur ein Siegelbackenpaar, das jedoch durch beide Schlauchformeinrichtungen deckend verlängert ist, oder auf einem Tragbalkenpaar zwei Siegelbackenpaare, die von gemeinsamen Linearantrieben betätigt werden. Diese Maschinen haben zwar einen einfachen Aufbau. Wegen der Maßtoleranzen und dem Wärmeverzug ihrer Bauteile erfullen sie jedoch nicht die erforderliche und gleichbleibende Dichtigkeitsqualität der Quersiegelnähte der Schlauchbeutelpackungen. In addition to the widely known devices with a single tube forming device (so-called simplex Machines) and accordingly one Cross seam sealing devices are also so-called duplex Machines with two arranged parallel to each other Hose forming devices known on each Working cycle manufactured two packs of tubular bags will. These machines, like the simplex machines, have only one pair of sealing jaws, but by both Hose forming devices is extended to cover, or a pair of supporting beams two pairs of sealing jaws, the common linear drives can be operated. These machines have a simple structure. Because of the dimensional tolerances and they do not meet the heat distortion of their components the required and constant tightness quality the transverse sealing seams of the flow packs.  

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Vorrichtung zum Herstellen von Schlauchbeutelpackungen mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, daß bei jedem Quernahtsiegelvorgang der gleiche Anpreßdruck der Siegelbacken auf beide Schlauchbeutelpackungen gewährleistet ist. Dadurch ist es möglich, bei jedem Arbeitszyklus jeweils zwei hochdichte Schlauchbeutelpackungen herzustellen, die gas- und flüssigkeitsdicht sind.The inventive device for producing Tubular bag packs with the characteristic features of claim 1 has the advantage that with each Cross seam sealing process the same contact pressure Sealing jaws guaranteed on both tubular bag packs is. This makes it possible to do each cycle to produce two high-density tubular pouches that are gas and liquid tight.

Weitere Vorteile und vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung zum Herstellen von Schlauchbeutelpackungen ergeben sich aus den Unteransprüchen und der Beschreibung.Further advantages and advantageous developments of Device according to the invention for producing Tubular bag packs result from the subclaims and the description.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher beschrieben. Es zeigenAn embodiment of the invention is in the drawing shown and is described in more detail in the following description described. Show it

Fig. 1 eine Duplex- Schlauchbeutelmaschine stark vereinfacht in Vorderansicht und Fig. 2 die Quernahtsiegeleinrichtung der Duplex- Schlauchbeutelmaschine nach Fig. 1 in Draufsicht, wobei Teile teilweise gebrochen dargestellt sind. Fig. 1 shows a duplex tubular bag machine greatly simplified in front view and Fig. 2 shows the cross-seam sealing device of the duplex tubular bag machine according to Fig. 1 in plan view, parts are shown partially broken.

Beschreibung des AusführungsbeispielsDescription of the embodiment

Zwei Schlauchformeinrichtungen 11, 12 sind nebeneinander angeordnet, die je ein heißsiegelfähiges Packstoffband 1, 2 um je ein Formrohr 13, 14 zu einem Schlauch 3, 4 formen. Die einander überdeckenden Ränder der Packstoffbänder 1, 2 werden von Längsnahtsiegeleinrichtungen 15, 16 zu Längsnähten 5 verbunden. Unterhalb der Schlauchformeinrichtungen 11, 12 ist eine Quernahtsiegeleinrichtung 20 mit zwei Siegeleinheiten 21, 22 angeordnet, welche die beiden Schläuche 3, 4 abteilen, quersiegeln und abtrennen, wobei Schlauchbeutelpackungen 6 gebildet werden. In die Schlauchbeutelpackungen 6 wurde zuvor bei verschlossenem unterem Ende durch das jeweilige Formrohr 13, 14 je eine bestimmte Füllgutmenge eingefüllt. Zum taktweisen Vorziehen der Schläuche 3, 4 wird die Quernahtsiegeleinrichtung 20 auf- und abbewegt. Die Quernahtsiegeleinrichtung 20 kann aber auch stationär angeordnet werden, wenn der Vorzug der Schläuche 3, 4 von an sich bekannten Vorzugeinrichtungen durchgeführt wird.Two tube forming devices 11 , 12 are arranged side by side, each forming a heat-sealable packaging material strip 1 , 2 around a shaped tube 13 , 14 to form a tube 3 , 4 . The overlapping edges of the packaging material strips 1 , 2 are connected by longitudinal seam sealing devices 15 , 16 to form longitudinal seams 5 . A transverse seam sealing device 20 with two sealing units 21 , 22 , which separate, cross-seal and separate the two tubes 3 , 4 , is arranged underneath the tube-forming devices 11 , 12 , tubular bag packs 6 being formed. In the tubular bag packs 6 , a certain amount of filling material was previously filled through the respective shaped tube 13 , 14 with the lower end closed. The cross-seam sealing device 20 is moved up and down in order to advance the tubes 3 , 4 in cycles. The transverse seam sealing device 20 can, however, also be arranged stationary if the preference of the hoses 3 , 4 is carried out by preferred means known per se.

Jede Siegeleinheit 21, 22 der Quernahtsiegeleinrichtung 20 hat ein Siegelbackenpaar mit je zwei gegeneinander bewegbaren Siegelbacken 31, 32 und 131, 132, die in einem Zwischenraum zwischen je zwei Klemmbackenpaaren 33, 34; 35, 36 und 133, 134; 135, 136 angeordnet sind. Ein Trennmesser 37, 137 ist bei zurückgezogenen Siegelbacken 31, 32 und 131, 132 in den Zwischenraum einführbar.Each sealing unit 21 , 22 of the transverse seam sealing device 20 has a pair of sealing jaws, each with two sealing jaws 31 , 32 and 131 , 132 which can be moved relative to one another and which are located in an intermediate space between two pairs of clamping jaws 33 , 34 ; 35 , 36 and 133 , 134 ; 135 , 136 are arranged. A separating knife 37 , 137 can be inserted into the intermediate space when the sealing jaws 31 , 32 and 131 , 132 are withdrawn.

In ihrer Ausgangsstellung sind die Siegelbacken 31, 32 und 131, 132 und die Klemmbacken 133, 134; 135, 136 der einzelnen Paare auseinandergezogen, so daß das mit einer Füllgutmenge gefüllte Ende der Schläuche 3, 4 dazwischen durchgeführt werden kann. Zum Herstellen der Quernähte 7 bzw. der Kopf- und Bodennähte werden zunächst die Klemmbacken 33, 34; 35, 36 und 133, 134; 135, 136 zusammengeführt und -gedrückt, so daß je eine Schlauchbeutelpackung 6 von den Schläuchen 3, 4 abgeteilt wird. Kurzzeitig danach werden auch die Siegelbacken 31, 32 und 131, 132 der einzelnen Paare geschlossen, so daß unter der Einwirkung von Druck und Wärme Quernähte 7 an den Schläuchen 3, 4 gebildet werden. Nach dem Zurückfahren der Siegelbacken 31, 32 und 131, 132 fährt ein Trennmesser 37 und 137 in den Zwischenraum zwischen den Klemmbacken 33, 35 bzw. 133, 135 und durchschneidet die jeweilige Quernaht 7 der Länge nach, wobei an der gerade gefertigten Schlauchbeutelpackung 6 eine Kopfnaht, und am neuen Schlauchende eine Bodennaht gebildet wird. Danach werden die Trennmesser 37, 137 und die Klemmbacken 33, 34, 35, 36 und 133, 134; 135, 136 wieder in die Ausgangsstellung zurückgezogen. Solange die Klemmbackenpaare 33, 34; 35, 36 und 133, 134; 135, 136 die Schläuche 3, 4 festklemmen, wird die Quernahtsiegeleinrichtung 20 um eine Beutellänge nach unten bewegt, wobei die Schläuche 3, 4 vorgezogen werden. Nach dem Öffnen der Klemmbacken kehrt die Quernahtsiegeleinrichtung 20 in die obere Lage zurück, und es kann ein neuer Arbeitszyklus beginnen.In their initial position, the sealing jaws 31 , 32 and 131 , 132 and the clamping jaws 133 , 134 ; 135 , 136 of the individual pairs pulled apart so that the end of the tubes 3 , 4 filled with a quantity of product can be passed between them. To produce the transverse seams 7 or the top and bottom seams, the clamping jaws 33 , 34 ; 35 , 36 and 133 , 134 ; 135 , 136 merged and pressed so that a tubular bag pack 6 is divided from the tubes 3 , 4 . Shortly thereafter, the sealing jaws 31 , 32 and 131 , 132 of the individual pairs are closed, so that transverse seams 7 are formed on the tubes 3 , 4 under the action of pressure and heat. After the sealing jaws 31 , 32 and 131 , 132 have been moved back , a separating knife 37 and 137 moves into the space between the clamping jaws 33 , 35 and 133 , 135, respectively, and cuts through the respective transverse seam 7 along the length, with one on the tubular bag pack 6 just produced Head seam, and a bottom seam is formed at the new hose end. Then the separating knives 37 , 137 and the jaws 33 , 34 , 35 , 36 and 133, 134; 135, 136 pulled back into the starting position. As long as the pairs of jaws 33 , 34 ; 35 , 36 and 133 , 134 ; 135 , 136 clamp the hoses 3 , 4 , the transverse seam sealing device 20 is moved down by one bag length, the hoses 3 , 4 being advanced. After the jaws have been opened, the transverse seam sealing device 20 returns to the upper position and a new working cycle can begin.

Die Siegelbacken 31, 32 und 131, 132, die Klemmbacken 33, 34; 35, 36 und 133, 134; 135, 136 sowie die Trennmesser 37 und 137 sind an einem Träger 23 angeordnet, der die Form eines Rechteckrahmens aus je zwei parallelen Balken 24, 25 und Traversen 26, 27 aufweist, von denen spiegelbildlich Gabeln 28, 29 nach innen vorstehen. Der Träger 23 ist mittels eines Adapters 30 mit einer nicht näher dargestellten vertikalen Hub- und Führungseinrichtung für den Träger 23 verbunden.The sealing jaws 31 , 32 and 131 , 132 , the clamping jaws 33 , 34 ; 35 , 36 and 133 , 134 ; 135 , 136 and the separating knives 37 and 137 are arranged on a carrier 23 which has the shape of a rectangular frame made up of two parallel beams 24 , 25 and crossbeams 26 , 27 , of which forks 28 , 29 project inward in mirror image. The carrier 23 is connected by means of an adapter 30 to a vertical lifting and guiding device for the carrier 23 , not shown in detail.

Die beiden gleichartig aufgebauten Siegeleinheiten 21, 22 sind im Träger 23 spiegelbildlich zu einer Ebene angeordnet, die mittig zwischen den Traversen 26, 27 liegt, wobei die beiden Siegelebenen im Abstand zueinander und zur Spiegelebene parallel verlaufen. Die beiden inneren Siegelbacken 32, 132 sind an zwei Stangenpaaren 41, 141 befestigt, welche in Lageraugen 42, 142 der Gabeln 28, 29 und in den Traversen 26, 27 längs verschiebbar sind. Die äußeren Enden der Stangen 41, 141 sind je mittels eines Jochs 43, 143 miteinander fest verbunden, gegen das die Kolbenstangen 44, 45 und 144, 145 von je zwei in den Traversen 26, 27 sitzenden Hydrozylindern 46, 47 und 146, 147 drücken. Die beiden äußeren Siegelbacken 31, 131 haben an ihren Enden Führungsbohrungen 48, 148, mit denen sie auf den Stangen 41 verschiebbar sind. Gegen die äußeren Siegelbacken 31, 131 drückt die Kolbenstange 49 je eines in den Traversen 26, 27 sitzenden Hydrozylinders 50, 150 im entgegengesetzten Sinne wie die Hydrozylinder 46, 47 und 146, 147. Das Auseinanderbewegen in die Ruhestellung der einzelnen Siegelbacken 31, 32 bzw. 131, 132 jeder Siegeleinheit 21, 22 bewirken je zwei Schraubenfederpaare 51, 52 und 151, 152, deren einzelne Federn mit ihrem einen Ende mit den Traversen 26, 27 fest verbunden sind und auf Zug wirken. Das andere Ende der Schraubenfedern der Schraubenfederpaare 51, 151 ist an Winkeln 53, 153 aufgehängt, die an den Jochen 43, 143 befestigt sind. In ähnlicher Form sind die zweiten Enden der Federn der Schraubenfederpaare 52, 152 an Haltern 54, 154 aufgehängt, die fest mit den Enden der äußeren Siegelbacken 31, 131 verbunden sind. In der Arbeitsstellung sind bei beaufschlagten Hydrozylindern 46, 47, 50 und 146, 147, 150 die Siegelbacken 31, 32 und 131, 132 der beiden Siegeleinheiten 21, 22 jeweils gegeneinander gedrückt (Fig. 2). Sie werden beim Entlasten der Hydrozylinder 46, 47, 50 und 146, 147, 150 von den Schraubenfederpaaren 52, 53 und 152, 153 in die Ruhestellung auseinandergezogen, so daß sie einen breiten Spalt zum Durchführen eines Schlauchendes freigeben.The two similarly constructed sealing units 21 , 22 are arranged in the carrier 23 in mirror image to a plane which lies centrally between the cross members 26 , 27 , the two sealing planes running parallel to one another and to the mirror plane. The two inner sealing jaws 32 , 132 are fastened to two pairs of rods 41 , 141 which are longitudinally displaceable in bearing eyes 42 , 142 of the forks 28 , 29 and in the cross members 26 , 27 . The outer ends of the rods 41 , 141 are each firmly connected to one another by means of a yoke 43 , 143 against which the piston rods 44 , 45 and 144 , 145 are pressed by two hydraulic cylinders 46 , 47 and 146 , 147 each seated in the cross members 26 , 27 . The two outer sealing jaws 31 , 131 have guide bores 48 , 148 at their ends, with which they can be displaced on the rods 41 . The piston rod 49 presses one of the hydraulic cylinders 50 , 150 seated in the cross members 26 , 27 against the outer sealing jaws 31 , 131 in the opposite sense to the hydraulic cylinders 46 , 47 and 146 , 147 . Moving apart into the rest position of the individual sealing jaws 31 , 32 and 131 , 132 of each sealing unit 21 , 22 cause two pairs of coil springs 51 , 52 and 151 , 152 , the individual springs of which are firmly connected at one end to the cross members 26 , 27 and act on train. The other end of the coil springs of the coil spring pairs 51 , 151 is suspended at angles 53 , 153 which are attached to the yokes 43 , 143 . Similarly, the second ends of the springs of the coil spring pairs 52 , 152 are suspended on holders 54 , 154 , which are firmly connected to the ends of the outer sealing jaws 31 , 131 . In the working position, when hydraulic cylinders 46 , 47 , 50 and 146 , 147 , 150 are acted upon, the sealing jaws 31 , 32 and 131 , 132 of the two sealing units 21 , 22 are each pressed against one another ( FIG. 2). When the hydraulic cylinders 46 , 47 , 50 and 146 , 147 , 150 are relieved, they are pulled apart by the coil spring pairs 52 , 53 and 152 , 153 into the rest position, so that they release a wide gap for the passage of a hose end.

Die jeweils einen einzelnen Siegelbacken 31, 32 und 131, 132 oben und unten begrenzenden Klemmbacken 33, 35; 34, 36 und 133, 135, 134, 136 sind seitlich miteinander fest verbunden und auf zwei parallelen, in den Traversen 26, 27 verankerten Führungsstangen 61, 62 parallel zu den Siegelbacken 31, 32 und 131, 132 verschiebbar gelagert. Im Gegensatz zu den Siegelbacken 31, 32 und 131, 132, von denen jeder seinen eigenen Antrieb hat, werden die jeweils in gleicher Richtung bewegten Klemmbacken 33, 35 und 134, 136 bzw. 133, 135 und 34, 36 gemeinsam angetrieben. Dazu sind die Enden der jeweils äußeren Klemmbacken 33, 35 bzw. 133, 135 mit der Kolbenstange 63, 64 von je zwei Pneumatikzylindern 65, 66 und 165, 166 fest verbunden, die paarweise in den Traversen 26, 27 befestigt sind, und jeweils die äußeren Klemmbacken 33, 35 bzw. 133; 135 jeder Siegeleinheit 21, 22 direkt betätigen. Die Enden der inneren Klemmbacken 34, 36 bzw. 134, 136 sind mittels Verbindungsstangen 67, 68 mit den Enden der äußeren Klemmbacken 33, 35 bzw. 133, 135 fest verbunden, so daß die inneren Klemmbacken 34, 36 bzw. 134, 136 der einen Siegeleinheit 21 bzw. 22 über die Klemmbacken 133, 135 bzw. 33, 35 der anderen Siegeleinheit betätigt werden.The respective individual jaws 31 , 32 and 131 , 132 upper and lower clamping jaws 33 , 35 ; 34 , 36 and 133 , 135 , 134 , 136 are laterally firmly connected to one another and slidably mounted on two parallel guide rods 61 , 62 anchored in the cross members 26 , 27 parallel to the sealing jaws 31 , 32 and 131 , 132 . In contrast to the sealing jaws 31 , 32 and 131 , 132 , each of which has its own drive, the clamping jaws 33 , 35 and 134 , 136 or 133 , 135 and 34 , 36 , which are moved in the same direction, are driven together. For this purpose, the ends of the respective outer jaws 33 , 35 and 133 , 135 are firmly connected to the piston rod 63 , 64 of two pneumatic cylinders 65 , 66 and 165 , 166 , which are fastened in pairs in the cross members 26 , 27 , and each outer jaws 33 , 35 and 133 ; 135 Actuate each sealing unit 21 , 22 directly. The ends of the inner jaws 34 , 36 and 134 , 136 are connected by means of connecting rods 67 , 68 to the ends of the outer jaws 33 , 35 and 133 , 135 , so that the inner jaws 34 , 36 and 134 , 136 of the a sealing unit 21 or 22 are actuated via the jaws 133 , 135 or 33 , 35 of the other sealing unit.

Ergänzend wird darauf hingewiesen, daß es in Abänderung des oben beschriebenen Ausführungsbeispiels selbstverständlich auch möglich ist, für die der Schlauchformeinrichtung 11 zugeordneten Klemmbackenpaare 33, 34, 35, 36 sowie für die der Schlauchformeinrichtung 12 zugeordneten Klemmbackenpaare 133, 134, 135, 136 jeweils einen eigenen Antrieb vorzusehen. Das bedeutet, daß die jeweiligen Klemmbackenpaare 33 bis 36 bzw. 133 bis 136 nicht mittels der oben beschriebenen Verbindungsstangen 67, 68 zwangsgekoppelt sind. Vielmehr sind die jeweils gegenüber angeordneten Klemmbacken jedes Klemmbackenpaares 33, 34; 35, 36; 133, 134; 135, 136 beispielsweise mittels eines Kettentriebes oder mittels Zahnstangen so gekoppelt, daß bei der Bewegung einer mit einem Pneumatikzylinder gekoppelten Klemmbacke zwangsläufig die dem Klemmbackenpaar zugeordnete Gegenbacke zu- oder wegbewegt wird. Mit der beschriebenen Modifikation der Vorrichtung ist es möglich, die Bewegung der Klemmbackenpaare 33 bis 36 unabhängig von der Bewegung der Klemmbackenpaare 133 bis 136 zu steuern.In addition, it is pointed out that, in a modification of the exemplary embodiment described above, it is of course also possible for the pairs of clamping jaws 33 , 34 , 35 , 36 assigned to the tube shaping device 11 and for the pairs of jaws 133 , 134 , 135 , 136 assigned to the tube shaping device 12 each to be separate Provide drive. This means that the respective jaw pairs 33 to 36 and 133 to 136 are not forcibly coupled by means of the connecting rods 67 , 68 described above. Rather, the jaws of each pair of jaws 33 , 34 ; 35 , 36 ; 133 , 134 ; 135 , 136 coupled, for example, by means of a chain drive or by means of toothed racks in such a way that, when a clamping jaw coupled to a pneumatic cylinder is moved, the counter-jaw assigned to the pair of clamping jaws is inevitably moved in or out. With the described modification of the device, it is possible to control the movement of the pairs of jaws 33 to 36 independently of the movement of the pairs of jaws 133 to 136 .

Claims (6)

1. Vorrichtung zum Formen, Füllen und Verschließen von Schlauchbeutelpackungen (6), mit zwei parallel zueinander ausgerichteten Einrichtungen (11, 12) zum Formen je eines Schlauches (3, 4) aus je einer Packstoffbahn (1, 2), und mit zwei, die am vorderen Ende mit je einer Füllgutmenge gefüllten Schläuche (3, 4) in Schlauchbeutelpackungen (6) unterteilenden Quernahtsiegeleinrichtungen (21, 22), die gegeneinander bewegbare, einen Zwischenraum belassende Klemmbackenpaare (33, 34; 35, 36 und 133, 134; 135, 136) und je ein in einem der Zwischenräume bewegbares Siegelbackenpaar (31, 32 und 131, 132) aufweisen, wobei die Klemmbacken und die Siegelbacken von Linearantrieben (46, 47, 50; 65, 66 und 146, 147, 150; 165, 166) betätigt werden, dadurch gekennzeichnet, daß jede der Quernahtsiegeleinrichtungen (21, 22) je ein unabhängig von der anderen Siegeleinrichtung betätigbares Siegelbackenpaar (31, 32 und 131, 132) aufweist, und daß die Siegelebenen der Quernahtsiegeleinrichtungen (21, 22) parallel im Abstand zueinander verlaufen.1. Device for forming, filling and closing tubular bag packs ( 6 ), with two devices ( 11 , 12 ) oriented parallel to one another for forming a tube ( 3 , 4 ) from a respective packaging material web ( 1 , 2 ), and with two, the cross-seam sealing devices ( 21 , 22 ), which at the front end are filled with tubes ( 3 , 4 ) each in a tubular bag pack ( 6 ), and the mutually movable clamping jaw pairs ( 33 , 34 ; 35 , 36 and 133 , 134 ; 135) , 136 ) and each have a sealing jaw pair ( 31 , 32 and 131 , 132 ) which can be moved in one of the intermediate spaces, the clamping jaws and the sealing jaws of linear drives ( 46 , 47 , 50 ; 65 , 66 and 146 , 147 , 150 ; 165 , 166 ) are operated, characterized in that each of the transverse seam sealing devices ( 21 , 22 ) each has a pair of sealing jaws ( 31 , 32 and 131 , 132 ) which can be actuated independently of the other sealing device, and that the p The sealing planes of the transverse seam sealing devices ( 21 , 22 ) run parallel and at a distance from one another. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß jede der Siegelbacken (31, 32 und 131, 132) einen eigenen Antrieb (46, 47; 50 und 146, 147; 150) hat.2. Device according to claim 1, characterized in that each of the sealing jaws ( 31 , 32 and 131 , 132 ) has its own drive ( 46 , 47 ; 50 and 146 , 147 ; 150 ). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die jeweils in gleicher Richtung bewegten Klemmbacken (33, 35 und 134, 136 sowie 133, 135 und 34, 36) beider Siegeleinrichtungen (21, 22) einen gemeinsamen Antrieb (65, 66 und 165, 166) haben.3. Apparatus according to claim 1 or 2, characterized in that the clamping jaws ( 33 , 35 and 134 , 136 and 133 , 135 and 34 , 36 ) of the two sealing devices ( 21 , 22 ), each moving in the same direction, have a common drive ( 65 , 66 and 165 , 166 ). 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die in jeweils gleicher Richtung bewegten Klemmbacken (33, 35; 134, 136 und 34, 36; 133, 135) der beiden Siegeleinrichtungen (21, 22) mittels Stangen (68, 67 und 168, 167) miteinander verbunden sind und daß alle Klemmbacken auf zwei parallelen Führungsstangen (61, 62) verschiebbar sind.4. The device according to claim 3, characterized in that the jaws ( 33 , 35 ; 134 , 136 and 34 , 36 ; 133 , 135 ) of the two sealing devices ( 21 , 22 ) moved in the same direction by means of rods ( 68 , 67 and 168 , 167 ) are connected to one another and that all clamping jaws can be moved on two parallel guide rods ( 61 , 62 ). 5. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Klemmbackenpaare (33, 34; 35, 36) der einen Siegeleinrichtung (21) und die Klemmbackenpaare (133, 134; 135, 136) der anderen Siegeleinrichtung (22) jeweils einen eigenen Antrieb haben.5. Apparatus according to claim 1 or 2, characterized in that the pairs of jaws ( 33 , 34 ; 35 , 36 ) of the one sealing device ( 21 ) and the pairs of jaws ( 133 , 134 ; 135 , 136 ) of the other sealing device ( 22 ) each have one have their own drive. 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Antriebe für die Siegelbacken (31, 32 und 131, 132) und die Klemmbacken (33, 34; 35, 36 und 133, 134; 135, 136) Hydrozylinder (46, 47, 50; 146, 147, 150) bzw. Pneumatikzylinder (65, 66; 165, 166) sind.6. Device according to one of claims 1 to 5, characterized in that the drives for the sealing jaws ( 31 , 32 and 131 , 132 ) and the clamping jaws ( 33 , 34 ; 35 , 36 and 133 , 134 ; 135 , 136 ) hydraulic cylinders ( 46 , 47 , 50 ; 146 , 147 , 150 ) or pneumatic cylinders ( 65 , 66 ; 165 , 166 ).
DE1996101598 1996-01-18 1996-01-18 Device for forming, filling and closing tubular bag packs Expired - Fee Related DE19601598C2 (en)

Priority Applications (3)

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DE1996101598 DE19601598C2 (en) 1996-01-18 1996-01-18 Device for forming, filling and closing tubular bag packs
PCT/DE1996/002503 WO1997026189A1 (en) 1996-01-18 1996-12-21 Machine for filling and sealing plastic bags
ZA97374A ZA97374B (en) 1996-01-18 1997-01-16 Apparatus for producing tubular bag packages

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EP1522398A1 (en) * 2003-10-08 2005-04-13 Saldoflex S.R.L. Device for moving the welding assembly, particularly for machines for manufacturing plastic bags
EP1561688A1 (en) * 2004-02-06 2005-08-10 Masek, Jan Machine for forming tetrahedral bags

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DE1586029A1 (en) * 1967-02-10 1970-04-23 Leon Doyen Machine for packaging liquids
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US5369941A (en) * 1991-03-11 1994-12-06 Ica S.P.A. Vertical packaging machine with two opposite forming tubes

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US2837883A (en) * 1956-09-06 1958-06-10 Package Machinery Co Automatic packaging machine
DE1168819B (en) * 1961-03-02 1964-04-23 Packaging Frontiers Inc Machine for the production of tetrahedral packs
DE1223137B (en) * 1961-10-11 1966-08-18 Hamac Hansella Ag Maschinenfab Device for producing the cross weld seams in packaging machines

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DE1586029A1 (en) * 1967-02-10 1970-04-23 Leon Doyen Machine for packaging liquids
DE3905605A1 (en) * 1988-06-28 1990-01-04 Tokyo Automatic Mach Works METHOD AND DEVICE FOR PRODUCING, FILLING AND SEALING BAGS
US5369941A (en) * 1991-03-11 1994-12-06 Ica S.P.A. Vertical packaging machine with two opposite forming tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1522398A1 (en) * 2003-10-08 2005-04-13 Saldoflex S.R.L. Device for moving the welding assembly, particularly for machines for manufacturing plastic bags
EP1561688A1 (en) * 2004-02-06 2005-08-10 Masek, Jan Machine for forming tetrahedral bags

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DE19601598C2 (en) 1998-01-15
WO1997026189A1 (en) 1997-07-24

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