DE1175867B - Method and device for the continuous production of packaging - Google Patents

Method and device for the continuous production of packaging

Info

Publication number
DE1175867B
DE1175867B DER24780A DER0024780A DE1175867B DE 1175867 B DE1175867 B DE 1175867B DE R24780 A DER24780 A DE R24780A DE R0024780 A DER0024780 A DE R0024780A DE 1175867 B DE1175867 B DE 1175867B
Authority
DE
Germany
Prior art keywords
nozzle
edge
tape
edges
spray head
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.)
Pending
Application number
DER24780A
Other languages
German (de)
Inventor
Franz Sommerfeld
Dr Justus Luther
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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 Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to DER24780A priority Critical patent/DE1175867B/en
Priority to DK435664AA priority patent/DK107058C/en
Priority to SE16260A priority patent/SE205339C1/sv
Priority to CH34560A priority patent/CH378767A/en
Priority to GB1791/60A priority patent/GB936670A/en
Publication of DE1175867B publication Critical patent/DE1175867B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
    • 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
    • B29C66/40—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
    • 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
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • 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
    • B29C66/8221—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
    • B29C66/83—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
    • 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
    • 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
    • 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
    • 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
    • B65B9/2056—Machines for packages of special type or form

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Making Paper Articles (AREA)

Description

Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Verpackungen Zusatz zum Patent: 1 088 223-Die Erfindung bezieht sich auf eine weitere Ausbildung und Verbesserung des Verfahrens und der Vorrichtung zur kontinuierlichen Herstellung von Verpackungen durch Erzeugen eines an der Innenseite mit thermoplastischem Kunststoff kaschierten Rohres oder Schlauches aus Pappe, Papier oder sonstigen für die Verpackung von flüssigem, pulverförmigem oder körnigem Gut, insbesondere von Lebensmitteln, geeigneten Werkstoffen, wobei der Werkstoff für das Rohr bzw. den Schlauch in Form eines Bandes kontinuierlich einem Rundungswerkzeug zugeführt und dort zu dem Rohr bzw. Schlauch mit sich überlappenden Längskanten, die miteinander verbunden werden, verformt wird, nach Patent 1088223.Method and device for the continuous production of packaging Addendum to the patent: 1 088 223-The invention relates to a further development and improvement of the method and apparatus for continuous manufacturing of packaging by creating a thermoplastic on the inside laminated pipe or hose made of cardboard, paper or other for packaging of liquid, powdery or granular goods, especially food, suitable materials, the material for the pipe or hose in the form a band is continuously fed to a rounding tool and there to the pipe or hose with overlapping longitudinal edges that are connected to one another, is deformed, according to patent 1088223.

Nach dem Hauptpatent wird das Werkstoffband dem Ringspalt des Spritzkopfes einer Strangpresse für thermoplastischen Kunststoff mit der gleichen Geschwindigkeit zugeführt, mit der gleichzeitig in demselben Ringspalt in bekannter Weise ein Schlauch aus thermoplastischem Kunststoff solcher Art kontinuierlich gebildet wird, daß er von dem Rohr bzw. dem Schauch aus Pappe, Papier od. dgl. eng anliegend umhüllt und hierbei auf die Innenfläche des Werkstoffrohres aufkaschiert wird. According to the main patent, the material strip is attached to the annular gap of the spray head a thermoplastic extrusion press at the same speed fed, with the same time in the same annular gap in a known manner a hose is continuously formed from thermoplastic material of such a type that he from the tube or the hose made of cardboard, paper or the like. Wrapped tightly and this is laminated onto the inner surface of the material pipe.

Bei dem Verfahren nach dem Hauptpatent wird zum Verkleben der zusammengebogenen Längskanten des Bandes ein Faden aus dem gleichen Kunststoff benutzt, der aus einer seitlichen Düse des Spritzkopfes heraustritt und zwischen diese Bandkanten eingeführt sowie durch Druck mit diesen verschweißt wird. Dieses Verfahren wird gemäß der Erfindung dadurch abgewandelt und verbessert, daß der zum Verkleben der Ränder des rohrförmig zusammengebogenen Bandes abgezweigte Spritzmassenstrom unmittelbar auf die eine Längskante an der inneren Seite des an dieser Stelle vorbeheizten Bandes in Form eines dünnen und schmalen Klebestreifens aufgetragen wird. Zu diesem Zweck wird die betreffende Kante des Bandes unter elastischem Druck an der Düse vorbeigeführt, wobei sie den Klebstoff aufnimmt. Diese Arbeitsweise ermöglicht eine bessere Dosierung des als Klebmittel dienenden Kunststoffes sowie eine dünne und auf die gewünschte Kantenbreite genau begrenzte Auftragung des Klebematerials in einer Stärke von etwa 0,05 mm Dicke und 0,08 mm Breite. In the method according to the main patent is to glue the bent together Longitudinal edges of the tape use a thread made from the same plastic that is made from a emerges from the side nozzle of the spray head and is inserted between these belt edges as well as being welded to them by pressure. This method is according to the invention modified and improved in that the for gluing the edges of the tubular The bent band of the spray mass flow branched off directly onto the one Longitudinal edge on the inner side of the strip preheated at this point in shape a thin and narrow adhesive strip is applied. To this end, will the relevant edge of the tape is guided past the nozzle under elastic pressure, where it picks up the adhesive. This way of working enables better dosing of the plastic used as an adhesive as well as a thin and desired one Edge width exactly limited application of the adhesive material in a thickness of about 0.05 mm thick and 0.08 mm wide.

Bei einer Vorrichtung zur Durchführung dieses Verfahrens ist die seitlich im Spritzkopfkörper angeordnete Spritzdüse radial nach außen gerichtet, wobei unmittelbar durch diese Düsenöffnung eine Kante des gebogenen Bandes unter elastischer Anpressung gegen die Düsenöffnung an dieser vorbeigeführt und hierbei mit dem zur Verklebung dienenden Kunststoff versehen wird. Zur Erzeugung des elastischen Anpreßdruckes ist gegenüber dieser seitlichen kleinen Spritzdüse für das Aufbringen des Klebstreifens eine unter Federdruck stehende einstellbare Vorrichtung angeordnet, welche die Kante des vorbeilaufenden gebogenen Bandes ständig gegen die Düsenöffnung anpreßt. In a device for performing this method is Spray nozzle arranged laterally in the spray head body directed radially outwards, with an edge of the bent strip underneath directly through this nozzle opening elastic pressure against the nozzle opening passed this and here is provided with the plastic used for gluing. To generate the elastic Contact pressure is opposite this small side spray nozzle for the application an adjustable device under spring pressure is arranged on the adhesive strip, which the edge of the curved strip running past constantly against the nozzle opening presses on.

Zur Regelung der für die Aufbringung des Klebestreifens benötigten Materialmenge dient gemäß der Erfindung eine Regulierschraube, die in dem Spritzkopfkörper so angeordnet ist, daß sie in den seitlichen Spritzkanal hineinragt und dessen Querschnitt je nach ihrer Stellung mehr oder weniger verengt. To regulate the required for the application of the adhesive tape The amount of material used according to the invention is a regulating screw in the spray head body is arranged so that it protrudes into the lateral spray channel and its cross section more or less narrowed depending on their position.

Zwischen der seitlichen Düse für die Kaschierung der einen Längskante des Bandes und den Druckrollen für das Zusammenpressen der Kanten ist ein kreisringförmiger Körper für die Führung bzw. Verformung des Bandes zu einem rohrförmigen Körper angeordnet, der an der Innenseite einen die beiden Bandkanten voneinander in Abstand haltenden Absatz besitzt, so daß bei der beginnenden Überlappung der sich infolge der Biegung zu einem Rohr immer mehr nähernden Kanten die kaschierte Kante mit der nichtkaschierten Kante nicht vorzeitig in Berührung kommt. Between the side nozzle for the lamination of one long edge of the belt and the pressure rollers for pressing the edges together is a circular ring Body arranged for guiding or deforming the band to form a tubular body, the one on the inside that keeps the two band edges at a distance from one another Has paragraph, so that at the beginning of the overlap as a result of the bend the laminated edge with the non-laminated edge for an increasingly closer edge to a pipe Edge does not come into contact prematurely.

Gegenüber der seitlichen Spritzdüse für die Kaschierung des Bandrandes ist ein Halter an der Spritzmaschine, z. B. einem Extruder, befestigt, der eine Feder, z. B. eine Blattfeder, zum Anpressen der Bandkante gegen die Düsenöffnung und unterhalb derselben eine Gegendruckrolle trägt, während die gefederte, gegenüberliegende Druckrolle in einer Ausnehmung des Spritzkopfkörpers eingelassen ist. Opposite the side spray nozzle for lamination of the tape edge is a holder on the injection molding machine, e.g. B. an extruder attached, the one Spring, e.g. B. a leaf spring, for pressing the strip edge against the nozzle opening and underneath it carries a counter-pressure roller, while the spring-loaded, opposite one Pressure roller is embedded in a recess of the spray head body.

Zur weiteren Aufheizung des zusammengebogenen Papierbandes auf die für die Kaschierung der Innenflächen mit dem Kunststoffschlauch erforderliche Temperatur ist gemäß der Erfindung im Bereich zwischen der seitlichen Spritzdüse für den Klebestreifen und dem Zentrierring eine das Papierband an der Außenseite mantelförmig umhüllende elektrische Strahlungsheizung angeordnet. Diese Heizung hat außerdem die Aufgabe, den Klebestreifen auf der einen Längskante des Papierbandes auf die erforderliche Temperatur zu bringen, so daß die Längsnaht nach dem Vorbeiführen an dem Druckrollenpaar dauerhaft verklebt ist. Die Strahlungstemperatur beträgt hierbei etwa 300 bis 3500 C. For further heating of the bent paper tape on the temperature required for lamination of the inner surfaces with the plastic tube is according to the invention in the area between the side spray nozzle for the adhesive strip and the centering ring enveloping the paper tape on the outside in a jacket-like manner electric radiant heating arranged. This heater also has the task of the adhesive strip on one long edge of the paper tape to the required Bring temperature so that the longitudinal seam after passing the pair of pressure rollers is permanently glued. The radiation temperature is around 300 to 3500 C.

In der Zeichnung ist ein Ausführungsbeispiel einer Vorrichtung zur Durchführung des Verfahrens gemäß der Erfindung veranschaulicht, und zwar zeigt F i g. 1 eine Ansicht des Spritzkopfes mit dem darin geführten Band, Fig. 2 einen senkrechten Längsschnitt durch den Spritzkopf, F i g. 3 einen Querschnitt durch das kreisförmig zu einem Zylinder zusammengebogene Band nach der Linie III-III der F i g. 2, F i g. 4 einen Querschnitt nach der Linie IV-IV der Fig. 2, Fig. 5 einen Querschnitt nach der Linie V-V der Fig. 2, F i g. 6 einen Querschnitt nach der Linie Vl-VI der Fig. 2, Fig.7 einen Querschnitt nach der Linie VII-VII derFig. 2, F i g. 8 einen Querschnitt nach der Linie VIII-VIII der Fig. 2, F i g. 9 eine Ansicht der fertigen Verpackung. In the drawing is an embodiment of a device for Implementation of the method according to the invention illustrated, namely shows F i g. 1 shows a view of the spray head with the tape guided therein, FIG. 2 shows a vertical longitudinal section through the spray head, FIG. 3 shows a cross section through the circular band bent together to form a cylinder along the line III-III of F i g. 2, fig. 4 shows a cross section along the line IV-IV of FIG. 2, FIG. 5 shows a Cross section along the line V-V of Fig. 2, F i g. 6 shows a cross section along the line VI-VI of FIG. 2, FIG. 7 shows a cross section along the line VII-VII of FIG. 2, F i G. 8 shows a cross section along the line VIII-VIII of FIG. 2, F i g. 9 is a view the finished packaging.

Der Spritzkopfkörper 1 besitzt einen zentralen von dem Düsenrohr 5 begrenzten Ringkanal 2, welcher der Zuführung der Spritzmasse zur Ringdüse 3 dient. The spray head body 1 has a central one from the nozzle tube 5 delimited annular channel 2, which is used to supply the injection molding compound to the annular nozzle 3.

An geeigneter Stelle des Spritzkopfes oberhalb der Ringdüse ist, radial nach außen den Spritzkopfkörper durchdringend, eine Spritzdüse 8 für den Austritt eines Teiles der Spritzmasse vorgesehen. Die Menge der durch diese Hilfsdüse 8 austretenden Spritzmasse kann durch die Regulierschraube 9 je nach Bedarf verlängert werden. Die aus der Hilfsdüse 8 austretende Spritzmasse kaschiert die eine Kante des zusammengebogenen über den Spritzkopf geführten Bandes 10 aus Papier oder sonstigen geeigneten Werkstoffen, wobei zum Anpressen dieser Papierkante eine Blattfeder 11 vorgesehen ist, die auf der gegenüberliegenden Seite sich von außen gegen die Papierkante legt. Unterhalb dieser Kaschiervorrichtung für die Kante des Papierbandes ist an dem gleichen Halterl2, der auch die Anpreßfeder 11 trägt, und der an dem Spritzgußkörper in geeigneter Weise befestigt ist, eine feste Druckrolle 13 vorgesehen, die vorzugsweise entsprechend der Krümmung des Papierrohres konvex gestaltet ist. Gegenüber dieser Druckrolle 13 und an der Innenseite der sich überlappenden Bandnaht ist in einer Ausnehmung 14 des Düsenkörpers eine Gegendruckrolle 15 vorgesehen, die an dem Ende eines gefederten Hebels 16 liegt.At a suitable point on the spray head above the ring nozzle is radial penetrating the spray head body to the outside, a spray nozzle 8 for the outlet a part of the spray compound is provided. The amount of exiting through this auxiliary nozzle 8 Injection compound can be extended as required using the regulating screw 9. The spray compound emerging from the auxiliary nozzle 8 conceals one edge of the bent one tape 10 made of paper or other suitable materials, guided over the spray head, wherein a leaf spring 11 is provided for pressing this paper edge, which on the opposite side lies against the edge of the paper from the outside. Below this lamination device for the edge of the paper tape is on the same holder which also carries the pressure spring 11, and the one on the injection molded body in a suitable manner Way is attached, a fixed pressure roller 13 is provided, which is preferably accordingly the curvature of the paper tube is convex. Opposite this pressure roller 13 and on the inside of the overlapping tape seam is in a recess 14 of the nozzle body a counter-pressure roller 15 is provided, which is at the end of a sprung Lever 16 is.

Diese Druckrolle ist entsprechend der inneren Krümmung des zusammengebogenen Papierbandes 10 konvex ausgebildet. Die Zusammenführung der beiden Bandkanten zu einem gekrümmten rohrförmigen Körper sowie die Überlappung der Kanten wird durch eine den Spritzkopfkörper umfassende Kreisring- führung 17 bewirkt, die in der Höhe zwischen der seitlichen Spritzdüse und den Druckrollen angeordnet ist. Diese Kreisringführung ist so gestaltet, daß die kaschierte Kante und die nichtkaschierte Kante des Papierstreifens in Abstand gehalten werden, damit sie sich nicht vorzeitig bzw. vor dem Eintritt zwischen die Druckrollen 13, 15 berühren. Der Spritzkopfkörper 1 ist zur Vorbeheizung des über ihm geführten Papierstreifens 10 mit einer elektrischen Heizung 18 versehen, die gegenüber dem Papierstreifen durch einen Metallschutzmantel 19 abgedeckt ist.This pressure roller is corresponding to the inner curvature of the bent one Paper tape 10 is convex. The merging of the two tape edges too a curved tubular body as well as the overlap of the edges is through a circular ring encompassing the spray head body Guide 17 causes that in height is arranged between the side spray nozzle and the pressure rollers. This circular guide is designed so that the laminated edge and the non-laminated edge of the paper strip be kept at a distance so that they do not move prematurely or before entry touch between the pressure rollers 13, 15. The spray head body 1 is for preheating of the paper strip 10 guided over it is provided with an electrical heater 18, which is covered by a protective metal jacket 19 with respect to the paper strip.

Im Bereich zwischen der Spritzdüse 8 und dem Zentrier- bzw. Führungsring 17 ist ferner eine das zu einem Rohr zusammengebogene Papierband 10 mantelförmig umhüllende elektrische Strahlungsheizung 20 vorgesehen, welche die Aufgabe hat, dieses Papierband auf die für die nachfolgende Innenkaschierung mit dem Kunststoffschlauch erforderliche Temperatur zu bringen und außerdem den Klebestreifen auf der einen Längskante des Papierbandes so hoch zu erhitzen, daß die nachfolgende Verklebung zu einer Längsnaht zwischen dem Druckrollenpaar 13, 15 eine dauerhafte ist. In the area between the spray nozzle 8 and the centering or guide ring 17, a paper tape 10 bent together to form a tube is also jacket-shaped enveloping electrical radiant heater 20 is provided, which has the task of this paper tape on for the subsequent inner lamination with the plastic tube to bring the required temperature and also the adhesive strip on one Heat the long edge of the paper tape so high that the subsequent gluing to a longitudinal seam between the pressure roller pair 13, 15 is a permanent one.

Die Arbeitsweise der Vorrichtung ist folgende: Der zunächst glatte, von einer Rolle ablaufende Papierstreifen (vgl. F i g. 1) wird über den Spritzkopfkörper hinweggeführt und hierbei allmählich zu einem offenen Zylinder zusammengebogen (vgl. F i g. 3). Dieses Zusammenbiegen erfolgt unter dem Zwang der Kreisringführung. Die einzelnen Phasen der Zusammenbiegung sind aus den Fig. 3 bis 8 erkennbar. Zunächst stehen die Kanten des gebogenen Papierstreifens noch verhältnismäßig weit auseinander (vgl. The operation of the device is as follows: The initially smooth, Paper strips running off a roll (see FIG. 1) are placed over the spray head body led away and gradually bent into an open cylinder (cf. F i g. 3). This bending takes place under the constraint of the circular ring guide. the individual phases of the bending together can be seen from FIGS. 3 to 8. First the edges of the bent paper strip are still relatively far apart (see.

Fig. 3), sodann gelangt die eine Kante des Papierstreifens vor die seitliche Spritzdüse (vgl. F i g. 4) wo diese Kante mit Klebstoff belegt wird. Sobald die Stelle des Schnittes V-V erreicht ist, also die Stelle, wo sich die Kreisringführung befindet, liegen sich die beiden Kanten des Papierstreifens bereits gegenüber, werden jedoch durch die Kreisringführung noch in bestimmtem Abstand gehalten. An der Stelle des Schnittes VI-VI, wo also die Druckrollen angeordnet sind, erfolgt dann das Zusammenpressen der Bandkanten und Verkleben zu einer Naht, wobei ein geschlossener rohrförmiger Körper (vgl. F i g. 7) entsteht.Fig. 3), then one edge of the paper strip arrives in front of the side spray nozzle (see Fig. 4) where this edge is covered with adhesive. As soon the point of the section V-V has been reached, i.e. the point where the circular ring guide is the two edges of the paper strip are already facing each other but kept at a certain distance by the circular ring guide. At the point of the section VI-VI, where the pressure rollers are arranged, the compression then takes place the tape edges and gluing into a seam, being a closed tubular Body (see Fig. 7) is created.

Unmittelbar danach gelangt dieses Papierrohr in den Bereich der Spritzdüse 3, aus welcher ein Kunststoffschlauch austritt, der sich fest an die Innenwand des Rohres anlegt und dieses mit einem geschlossenen Kunststoffüberzug kaschiert. Immediately afterwards this paper tube arrives in the area of the spray nozzle 3, from which a plastic tube emerges, which is firmly attached to the inner wall of the Pipe creates and this is covered with a closed plastic coating.

Claims (7)

Patentansprüche: 1. Verfahren zum kontinuierlichen Herstellen eines an der Innenseite mit thermoplastischem Kunststoff kaschierten Rohres oder Schlauches aus Pappe, Papier oder aus sonstigen, für die Verpackung von flüssigem, pulverförmigem oder körnigem Gut, insbesondere von Lebensmitteln, geeigneten Werkstoffen, wobei der Werkstoff für das Rohr bzw. den Schlauch in Form eines Bandes kontinuierlich einem Rundungswerkzeug zugeführt und dort zu dem Rohr bzw. Schlauch mit sich überlappenden Längskanten verformt wird, wobei das Werkstoffband den Ringspalt des Spritzkopfes einer Strangpresse für thermoplastischen Kunststoff mit der gleichen Geschwindigkeit zugeführt wird, mit der gleichzeitig in demselben Ringspalt in bekannter Weise ein Schlauch aus thermoplastischem Kunststoff solcher Art kontinuierlich gebildet wird, daß er von dem Rohr bzw. dem Schlauch aus Pappe, Papier od. dgl. eng anliegend umhüllt und hierbei auf die Innenfläche des Werkstoffrohres aufkaschiert wird wobei ein Teil des Massestromes des Kunststoffes vor dem Düsenauslaß abgezweigt und als Klebemasse zwischen die sich überlappenden Längskanten des Rohres bzw. Schlauches aus Pappe od. dgl. eingebracht wird, nach Patent 1088223, dadurch gekennzei chnet, daß der zum Verkleben der Ränder des rohrförmig zusammengebogenen Bandes abgezweigte Massestrom unmittelbar auf den einen Rand an der inneren Seite des Bandes in Form eines dünnen und schmalen Streifens aufgetragen und diese Stelle des Bandes beheizt wird. Claims: 1. A method for continuously producing a on the inside with thermoplastic laminated pipe or hose Made of cardboard, paper or other, for the packaging of liquid, powdery or granular material, especially of food, suitable materials, whereby the material for the pipe or the hose in the form of a band is continuous fed to a rounding tool and there to the tube or hose with overlapping Longitudinal edges are deformed, with the material strip forming the annular gap of the spray head a thermoplastic extrusion press at the same speed fed is, with the same time in the same annular gap in a known manner a hose is continuously formed from thermoplastic material of such a type that he encased tightly by the tube or tube made of cardboard, paper or the like and this is laminated onto the inner surface of the material pipe, a Part of the mass flow of the plastic branched off in front of the nozzle outlet and used as an adhesive between the overlapping longitudinal edges of the tube or tube made of cardboard Od. Like. Is introduced, according to patent 1088223, characterized in that the Mass flow branched off for gluing the edges of the tubularly bent band immediately on one edge on the inner side of the tape in the form of a thin and narrow strips are applied and this part of the tape is heated. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß die seitlich an dem Spritzkopfkörper angeordnete Spritzdüse (8) nach außen gerichtet ist und unmittelbar vor dieser Düsenöffnung eine Randkante des gebogenen Bandes unter elastischer Anpressung gegen die Düsenöffnung vorbeigeführt und hierbei mit dem zum Verkleben dienenden Kunststoff versehen wird. 2. Apparatus for performing the method according to claim 1, characterized characterized in that the spray nozzle arranged laterally on the spray head body (8) is directed outwards and an edge immediately in front of this nozzle opening of the curved strip is guided past the nozzle opening under elastic pressure and is provided with the plastic used for gluing. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß gegenüber der seitlichen Spritzdüse für das Aufbringen des Klebestreifens eine unter federndem Druck stehende, einstellbare Vorrichtung (11) zum Anpressen der Bandränder gegeneinander bzw. gegen den seitlichen Düsenkopf vorgesehen ist. 3. Apparatus according to claim 2, characterized in that opposite the side spray nozzle for applying the adhesive tape is a springy one Pressurized, adjustable device (11) for pressing the tape edges against each other or is provided against the side nozzle head. 4. Vorrichtung nach Anspruch 2 und 3, dadurch gekennzeichnet, daß in dem Spritzkopf- körper eine in den seitlichen Spritzkanal (8) hineinragende Regulierschraube (9) zur Steuerung der Menge der gegen die Kante gespritzten Kunststoffes angeordnet ist. 4. Apparatus according to claim 2 and 3, characterized in that in the spray head body a regulating screw protruding into the side spray channel (8) (9) arranged to control the amount of plastic injected against the edge is. 5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwischen der seitlichen Düse (8) für die Kaschierung der einen Längskante des Bandes und den Druckrollen (13, 15) für das Zusammenpressen der Kanten ein kreisringförmiger Körper(17) für die Führung des Bandes angeordnet ist, der an der Innenseite einen die beiden Bandkanten voneinander in Abstand haltenden Absatz besitzt, so daß bei der beginnenden Überlappung der Kanten die kaschierte Kante mit der nichtkaschierten Kante nicht vorzeitig in Berühmag kommt. 5. Apparatus according to claim 1, characterized in that between the side nozzle (8) for the lamination of one longitudinal edge of the tape and the pressure rollers (13, 15) for pressing the edges together a circular ring-shaped Body (17) is arranged for guiding the tape, which has a on the inside the two band edges from each other has a spaced paragraph, so that at the beginning of the overlap of the edges, the laminated edge with the non-laminated edge Edge does not get into celebrity prematurely. 6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß seitlich der Düse ein Halter (12) an dem Spritzkopf befestigt ist, der eine Feder (11) zum Anpressen der Bandkante gegen die Düse und unterhalb derselben eine Gegendruckrolle (13) trägt, während die gefederte, gegenüberliegende Druckrolle (15) in einer Ausnehmung (14) des Spritzkopfkörpers eingelassen ist. 6. Apparatus according to claim 1, characterized in that the side the nozzle a holder (12) is attached to the spray head, which has a spring (11) for Press the belt edge against the nozzle and a counter-pressure roller underneath it (13) carries while the spring-loaded, opposite pressure roller (15) in a recess (14) of the spray head body is embedded. 7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß im Bereich der seitlichen Spritzdüse für den Klebestreifen eine das gebogene Papierband an der Außenseite mantelförmig umhüllende elektrische Strahlungsheizung (20) vorgesehen ist. 7. Apparatus according to claim 1, characterized in that in the area Apply the bent paper tape to the side spray nozzle for the adhesive strip the outside of a jacket-shaped enveloping electrical radiant heater (20) is provided is. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 858 771; deutsche Auslegeschrift Nr. 1 028 325; französische Patentschrift Nr. 1 106 628; schweizerische Patentschrift Nr. 308 956. Documents considered: German Patent No. 858 771; German interpretative document No. 1 028 325; French patent specification No. 1 106 628; Swiss patent specification No. 308 956.
DER24780A 1959-01-17 1959-01-17 Method and device for the continuous production of packaging Pending DE1175867B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DER24780A DE1175867B (en) 1959-01-17 1959-01-17 Method and device for the continuous production of packaging
DK435664AA DK107058C (en) 1959-01-17 1960-01-06 Method and apparatus for continuous production of plastic-lined packaging inside.
SE16260A SE205339C1 (en) 1959-01-17 1960-01-09
CH34560A CH378767A (en) 1959-01-17 1960-01-14 Method and device for the continuous production of a tubular packaging casing laminated on the inside with thermoplastic material
GB1791/60A GB936670A (en) 1959-01-17 1960-01-18 Method of and apparatus for the continuous manufacture of packing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER24780A DE1175867B (en) 1959-01-17 1959-01-17 Method and device for the continuous production of packaging

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DE1175867B true DE1175867B (en) 1964-08-13

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DER24780A Pending DE1175867B (en) 1959-01-17 1959-01-17 Method and device for the continuous production of packaging

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DE (1) DE1175867B (en)
DK (1) DK107058C (en)
GB (1) GB936670A (en)
SE (1) SE205339C1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11388909B2 (en) * 2018-10-02 2022-07-19 Pure Nature Foods, LLC Apparatus and method for post-extrusion filling and closure of an extrudate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE858771C (en) * 1951-04-25 1952-12-08 Basf Ag Process for the production of clear, tack-free hollow bodies, foils or the like from polyethylene
CH308956A (en) * 1953-05-26 1955-08-15 Uni Tubo S A Installation for shaping plastic tubes.
FR1106628A (en) * 1953-08-26 1955-12-21 Basf Ag Process for manufacturing hollow bodies from thermoplastic materials
DE1028325B (en) * 1954-11-13 1958-04-17 Lissmann Alkor Werk Method and device for the production of tubular films

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE858771C (en) * 1951-04-25 1952-12-08 Basf Ag Process for the production of clear, tack-free hollow bodies, foils or the like from polyethylene
CH308956A (en) * 1953-05-26 1955-08-15 Uni Tubo S A Installation for shaping plastic tubes.
FR1106628A (en) * 1953-08-26 1955-12-21 Basf Ag Process for manufacturing hollow bodies from thermoplastic materials
DE1028325B (en) * 1954-11-13 1958-04-17 Lissmann Alkor Werk Method and device for the production of tubular films

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SE205339C1 (en) 1966-06-14
GB936670A (en) 1963-09-11
DK107058C (en) 1967-04-17

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