DE1938568A1 - Hose forming device for the production of hoses from material webs consisting at least on one side of thermoplastic material - Google Patents

Hose forming device for the production of hoses from material webs consisting at least on one side of thermoplastic material

Info

Publication number
DE1938568A1
DE1938568A1 DE19691938568 DE1938568A DE1938568A1 DE 1938568 A1 DE1938568 A1 DE 1938568A1 DE 19691938568 DE19691938568 DE 19691938568 DE 1938568 A DE1938568 A DE 1938568A DE 1938568 A1 DE1938568 A1 DE 1938568A1
Authority
DE
Germany
Prior art keywords
web
hose
heating
lower run
pressure
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
DE19691938568
Other languages
German (de)
Other versions
DE1938568C (en
DE1938568B2 (en
Inventor
Gottfried Espel
Martin Mindel
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to DE19691938568 priority Critical patent/DE1938568C/en
Priority claimed from DE19691938568 external-priority patent/DE1938568C/en
Priority to FR7027171A priority patent/FR2055516A5/en
Publication of DE1938568A1 publication Critical patent/DE1938568A1/en
Publication of DE1938568B2 publication Critical patent/DE1938568B2/en
Application granted granted Critical
Publication of DE1938568C publication Critical patent/DE1938568C/en
Expired 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
    • B29C66/40—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
    • 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
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
    • B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—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
    • B29C66/49—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
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—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
    • B29C66/83—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
    • B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/851—Bag or container making machines
    • B29C66/8511—Bag making machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • 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
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0012—Flexible containers made from webs by folding webs longitudinally having their openings facing in the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations

Description

EDUARD LORENZ · BERNHARD SEIDLER · MARGRIT SEIDLER DIPL. ING. HANS KARL GOSSEL · DR. JUR. LÜDER WITTEDUARD LORENZ BERNHARD SEIDLER MARGRIT SEIDLER DIPL. ING. HANS KARL GOSSEL DR. JUR. LÜDER WITT

8 München 22, Widenmoyerstraee 23 Windmöller & HölSCher Telefon [081U 297194/297834 8 Munich 22, Widenmoyerstraee 23 Windmöller & HölSCher Telephone [081U 297194/297834

Postscheck: München 170280 Lengerich i.W. Bankkonto: Bayerische Vereinsbank Postal check: Munich 170280 Lengerich iW Bank account: Bayerische Vereinsbank

Ihr Zeichen Unser Zeichen TagYour symbol Our symbol day

Schlauchbildevorrichtung zur Herstellung von Schläuchen aus mindestens einseitig aus thermoplastischem Kunststoff bestehenden WerkstoffbahnenHose forming device for the production of hoses from material webs consisting at least on one side of thermoplastic material

Die Erfindung betrifft eine insbesondere fUr Beutelherstellungsmaschinen bestimmte Schlauchbildevorrichtung mit einer Einrichtung zum kontinuierlichen Bilden der Längsnaht von aus thermoplastischem Material oder innenseitig mit thermoplastischem Material beschichtetem anderen Werkstoff bestehenden Schläuchen mittels einer Überlappungsschweißnaht. Insbesondere liegt der Erfindung die Aufgabe zugrunde, eine thermoplastische Innenbahn innerhalb einer nicht verschweißbaren Außenbahn mittels einer durch Schweißen hergestellten Schlauchlängsnaht zum Schlauch zu schließen.The invention relates to a tube-forming device, particularly intended for bag-making machines, with a device for continuously forming the longitudinal seam of tubes made of thermoplastic material or other material coated on the inside with thermoplastic material by means of an overlap weld seam. In particular, the invention is based on the object of providing a thermoplastic inner web within a non-weldable outer web by means of a Welding to close the longitudinal hose seam to the hose.

Durch die deutsche Patentschrift 1 066 348 der Anmelderin ist eine Vorrichtung bekannt geworden, die zum Herstellen einer Oberlappungsschweißnaht an einer mindestens einseitig aus thermoplastischem Material bestehenden Werkstoffbahn dient/ wobei die miteinander zu verschweißenden Ränder der in Längsrichtung um einen Dorn oder Bleche herum kontinuierlich zu einem Rohr oder flachen Schlauch geformten Werkstoffbahn aufeinanderliegen und mittels eines mit einen lediglich eine günstige Wärmeübertragung gewährleistenden Preßdruck auf dem vorbeibewegten, zu verschweißenden SchlauchbahnteilBy the German patent specification 1 066 348 of the applicant is a Apparatus has become known which is used to produce an overlap weld seam on at least one side made of thermoplastic The existing material web serves / with the edges to be welded together in the longitudinal direction around a mandrel or Sheet metal around continuously to form a tube or flat hose formed material web on top of each other and by means of a with a only a favorable heat transfer ensuring pressure on the moved past, to be welded part of the tubular web

109809/1684109809/1684

19335681933568

gleitenden, ortsfest eingeordneten Heizbandes von auBen durch das mit der thermoplastischen Folie beschichtete Trägermaterial hindurch erhitzt werden. Die thermoplastische Schicht der überlappten Ränder wird damit in einen teigigen Zustand versetzt und im Anschluß daran durch eine unbeheizte Anpreßeinrichtung geführt.sliding, stationary heating tape from the outside through the with the thermoplastic film coated carrier material are heated through. The thermoplastic layer of the overlapped edges is thus put in a doughy state and in the Connection to it passed through an unheated pressing device.

Bei Anwendung dieser bekannten Vorrichtung zur Lösung der eingangs erwähnten besonderen Aufgabenstellung ergibt sich aber der Nachteil, daß die Wärmeübertragung votri Widerstandsband durch die Außenbahn hindurch zu den beiden überlappt übereinanderliegenden, z*u verschweißenden Foliehränderti der Innaiibaim erfolgen müfl, wodurch eine genaue Kontanthaltung der SchweißteisBparatir" im Bereich der Schweißnaht sehr erschwert wird. Infolge des gx'öBen Wärmeübertragungsweges ergeben sich bei Anwendung der bekannten Vorrichtung für diesen Fall auch starke Anpassung s^teierigkeiten der Schweißtemperatur an wechselnde Maschinenfssctiwindigkeiten. Da die Härme über das Außenbahnmaterial an dia eigentliche Schweißstelle herangeführt werden muß, erwärmt sich die Außenbahn, was zu einen erhöhten und ungenutzten Energiebedarf der Einrichtung führt. Auch ist die Temperatur des Widerstandsbasideü durch die der Außenbahn zumutbare Temperatur begrenzt. Ferner hat die bekannte kontinuierlich arbeitende Vorrichtung wegen der für die Wärmeleitung erforderlichen Zeit eine große Baulänge, warn zu einem entsprechenden erhöhten Platz- und Kostenaufwand führt.When using this known device to solve the above-mentioned special task, however, there is the disadvantage that the heat transfer from the resistance band through the outer track to the two overlapping, superimposed, welded foil edges of the Innaiibaim must take place, whereby an exact constant maintenance of the welding ice supply " Due to the large heat transfer path, when the known device is used in this case, the welding temperature is also very difficult to adapt to changing machine speeds. the outer track heats up, which leads to an increased and unused energy requirement of the device.The temperature of the resistance base is also limited by the temperature that is acceptable for the outer track Device because of the time required for heat conduction has a large overall length, warning leads to a correspondingly increased space and cost.

Durch die französische Patentschrift 1 246 745 ist eine Vorrichtung zur Herstellung von Kunststoffschläuchen aus doppelt gelegten Materialbahnen bekannt geworden, bei weicher eine Heizeinrichtung zwischen die miteinander zu verschweißenden Ränder der doppelt gelegten Kunststoffbahn eingreift und diese an ihren miteinander zu verschweißenden Flächen auf Schweißtemperatur erhitzt. Erst anschließend werden die beiden Lagen zusammengeführt und durch Preßrollen miteinander verbunden. Die Anwendung einer der-The French patent specification 1 246 745 discloses a device for producing plastic hoses from double-laid webs of material, in which a heating device engages between the edges of the double-laid plastic web to be welded and heats them to welding temperature on their surfaces to be welded together. Only then are the two layers brought together and connected to one another by pressure rollers. The application of one of the

109809/168 4 BAD109809/168 4 BATH

artigen Vorrichtung für die Herstellung der überlappungsschweißnaht in oiner Schlauchbildevorrichtung würde erhebliche konstruktive Schwierigkeiten mit sich bringen. Darüber hinaus ist die Erzielung oiner für die Verschweißung beim anschließenden Zusammenführen noch ausreichenden, andererseits aber das Kunststoffmaterial und gegebenenfalls öle Außenlage nicht gefährenden Erhitzung besonders schwierig. Außerdem ergibt sich auch hier ein verhältnismäßig großer Platzbedarf. wenn in der Andrüekstatlon nicht nur ein einziges Andrückrollenpaar vorgesehen werden soll, dai zur Erzielung einwandfreier Schweißnähte oft nicht ausreichen wird.like device for the production of the overlap weld in a hose-forming device would entail considerable structural difficulties. In addition, the achievement is oiner for the welding during the subsequent merging still sufficient, but on the other hand the plastic material and if necessary oils outer layer not dangerous heating particularly difficult. In addition, there is also a proportionate effect here Big need of space. if not only in the Andrüekstatlon a single pair of pressure rollers should be provided to achieve this flawless weld seams will often not be enough.

Durch die Erfindung soll nun eine Schweißeinrichtung für eine Schlauchbildevorrichtung geschaffen werden, die ohne erheblichen zusätzlichen Platz- und Kostenaufwand die Erzielung einwandfreier Uberlappungsschweißnähte, insbesondere bei den eingangs erwähnten thermoplastischen Innenbahnen innerhalb nicht verschwelßbarer Außenbahnen ermöglicht.The invention is now a welding device for a Hose forming device can be created, the achievement of flawless without considerable additional space and expense Overlap welds, especially those mentioned at the beginning thermoplastic inner webs within non-weldable External tracks made possible.

Diese Aufgabe wird erfinäungggsraäß gelöst durch ein auf der Oberseite des Schlauchbild%er -Fonnbleches angeordnete® Heizband und ein über dem Heizband vorgesehenes,, die zu verschweißenden Folienränder gegen da» Heizband andrückendes,- mit Bahngeschwindigkeit umlaufendes endloses Andrückband» dessen auf der Bahn aufliegendes unteres Trum im Heisbanäbereich feder - oder gewichtsbelastet ist. Durch die erfindungsgeisSße Anordnung des Widerstandebandes auf der Oberseite des Schlaöchbilüfter -Formbleches, bei Vorhandensein zweier Fortableehe selbstverständlich auf der Oberseite des oberen Fossnbleches, kam* die tfäzme voa diesem direkt an die Schweißstelle herangeführt werden, was Schwierigkeiten bei eier Regelung der Schwelßteiaperaitur und bei der Anpassung derselben an unterschiedliche Laufgeachwlßdigkeiten der Maschine ausschließt.This task is erfinäungggsraäß achieved by a on top of the tube image he% -Fonnbleches angeordnete® heating tape and an intended over the heating tape ,, the andrückendes film to be sealed edges against as "heating tape - rotating at web speed endless pressure belt" which on the track resting lower Trum in the Heisbanäbereich is spring - or weight loaded. Due to the inventive arrangement of the resistance band on the top of the Schlaöchbilüfter -form plate, with the presence of two Fortableehe of course on the top of the upper footplate, the tfäzme came from this to be brought directly to the welding point, which difficulties in regulating the smelting device and in the adjustment excludes the same to different running equivalencies of the machine.

4 -4 -

103809/1684103809/1684

Die Verwendung der erfindungsgemäßen Anpreßeinrichtung gewährleistet dabei eine einwandfreie Anpressung der zu verschweißenden Folienränder an das Widerstandsband auf dessen gesamter Länge, was der optimalen Ausnutzung der Heizleistung dient. Die Anpressung erfolgt bereits im Bereich der Schweißstation, so daß der Raumbedarf der Vorrichtung auf ein Minimum verringert werden kann. Außerdem weist die erfindungsgemäße Anpresseinrichtung den Vorteil auf, daß zwischen άβ η Anpreßmitteln und der Schlauchbahnoberfläche keine Gleitreibung herrscht, die hemmend und dadurch faltenbildend wirken könnte, und außerdem Verletzungen der gegebenenfalls bedruckton Schlauchbahnoberfläche herbeiführen könnte. Die Anordnung der erfindungsgemäßen Schweißeinrichtung im Bereich der normalen SchlapchbiIdeeinrichtung ist überhaupt nur dadurch ermöglicht, daß das Erwärmen und Anpressen der zu verschweißenden Folie in ein und derselben Station erfolgt.The use of the pressing device according to the invention is guaranteed at the same time, perfect pressing of the foil edges to be welded onto the resistance band over its entire length, what serves to optimally utilize the heating power. The pressing takes place in the area of the welding station, so that the space requirement the device can be reduced to a minimum. In addition, the pressing device according to the invention has the advantage that between άβ η pressing means and the hose web surface no There is sliding friction, which has an inhibiting and thus wrinkling effect could, and could also cause injuries to the possibly printed hose track surface. The arrangement of the Welding device according to the invention in the area of normal SchlapchbiIdeeinrichtung is only made possible at all by the fact that the heating and pressing of the film to be welded takes place in one and the same station.

In weiterer Ausgestaltung der Erfindung kann das Heizband in die Oberseite des Schlauchbildri -Formbleches so weit eingelassen sein, daß es gegenüber der Formblechoberfläche nur noch so weit vorsteht, daß noch eine einwandfreie Härmeübertragung an die Schweißstelle möglich ist. Die zur Unterbringung des Heizbanctes im Formblech vorgesehene Ausnehmung kann nach einem weiteren Erfindungsvorschlag mit wänaeisolierendcm Asbestzement ausgekleidet sein. Hierdurch wird erreicht, daß das Widerstandsband die erzeugte Wärme vorwiegend in Richtung der zu verschweißenden Folienränder abgibt. Ferner ist es zweckmäßig, wenn das Heizband zur Verhinderung des Festhaftens der zu verschweißenden Folie in an sich bekannter Weise mit Polytetrafluoräthylen-Seide abgedeckt ist.In a further embodiment of the invention, the heating tape can be let into the top of the hose-forming sheet metal to such an extent that that it only protrudes so far from the sheet metal surface, that still a perfect heat transfer to the welding point is possible. The one provided for accommodating the Heizbanctes in the shaped sheet According to a further proposal of the invention, the recess can be lined with insulating asbestos cement. Through this it is achieved that the resistance band emits the generated heat mainly in the direction of the foil edges to be welded. Further it is useful if the heating tape to prevent the film to be welded from sticking in a known manner Polytetrafluoroethylene silk is covered.

Zur Erzeugung des Anpreßdruckes können besonders vorteilhaft Blattfedern vorgesehen sein, die in einem ortsfest angeordneten, in Richtung auf die Bahn verstellbaren Balken verankert sind und mit einstellbarer Vorspannung das untere Trum des umlaufenden Andrtickbandes To generate the contact pressure, leaf springs can be particularly advantageous be provided, which is arranged in a stationary, in the direction adjustable bars are anchored on the web and the lower run of the circumferential pressure strip is anchored with adjustable pretensioning

109809/168 4109809/168 4

BAD OBIGtNALBAD OBIGtNAL

über dem Heizband gegen die.laufende Werkstoffbahn drücken. In Abwandlung dieses Erfindungsvorschlages kann der Anpreßdruck auf' einen auf dem Untertrüm des umlaufenden Andrückbandes gleitenden Balken aufgebracht werden, det mittels einstellbarer Druckfedern gegen das Untertrum gedrückt wird.Press against the moving material web above the heating tape. In Modification of this inventive proposal, the contact pressure on ' a beam sliding on the underside of the rotating pressure belt can be applied by means of adjustable compression springs is pressed against the lower run.

Die Erfindung ist in der nachstehenden Beschreibung anhand der Zeichnung näher erläutert, in welcher Ausführungsbeispiele gezeigt ^ sind. Inder Zeichnung zeigen?The invention is in the following description with reference to FIG Drawing explained in more detail, in which embodiments shown ^ are. Indians drawing show?

Fig.l eine Seitenansicht einer Ausführungsform der erfindungsgemäßen Vorrichtung mit einer ersten Variante der Anpreßeinrichtung , *Fig.l is a side view of an embodiment of the invention Device with a first variant of the pressing device, *

Fig.2 eine Ansicht in Richtung des Pfeiles A in Fig.l,FIG. 2 is a view in the direction of arrow A in FIG.

Fig.3 einen Schnitt nach den Linien III-III in Fig.2 in vergrößertem Maßstab,3 shows a section along the lines III-III in FIG. 2 on an enlarged scale Scale,

Fig.4 einen Schnitt nach den Linien IV-IV der Fig.2, ebenfalls in vergrößertem Maßstab undFIG. 4 shows a section along the lines IV-IV of FIG. 2, likewise on a larger scale and

Fig.5 eine Seitenansicht eines Ausschnittes einer erfindungsgemäßen Vorrichtung mit einer aweiten Variante der Anpreßeinrichtung im Schnitt.5 shows a side view of a section of an inventive Device with a wide variant of the pressing device in section.

über die in nicht dargestellten Maschinenseitengestellen drehbar gelagerte Leitwalze 1 (Fig.l und 2) wird die Werkstoffbahn 2 in die Schlauchbildeeinrichtung 3 geführt. Die Werkstoffbahn 2 besteht aus einer Papierbahn 4 (Fig.2), auf die beispielsweise eine Polyäthylenbahn 5 aufkaschiert ist, welche zu der Papierbahn 4 seitlich so weit versetzt angeordnet ist, daß sich bei der Schlauehbilduag die Ränder der zu verschweißenden Folie 5 in der Schlauchbahnraitte überlappen und daß die Längeklebenaht der Papierbahn aus optischen und drucktechnischen Gründen an einer Längskante des Schlauche® liegt. Die Schlauchbildeeinrichtung 3 weist einen in derrotatable via the machine side frames, not shown in mounted guide roller 1 (Fig.l and 2), the material web 2 is guided into the tube forming device 3. The material web 2 consists from a paper web 4 (Figure 2), on which, for example, a Polyethylene web 5 is laminated, which laterally to the paper web 4 is so far offset that the Schlauehbilduag the edges of the film to be welded 5 in the tubular track rail overlap and that the length glued seam of the paper web is optical and printing reasons on one longitudinal edge of the Schlauche® lies. The hose forming device 3 has one in

109809/1684109809/1684

Maschine festverankerten Haltefuß 6 auf t der zur Bildung eines Seitenfaltenschlauches zwei übereinander angeordnete Formblecho 7 und 8 trägt, die mittels nicht dargestellter Distanzstücke auf Abstand gehalten werden. Durch eine Abbiegung des vorderen Enden 9 des unteren F ormbleches 8 kann die schräg von oben koitmende Werkstoffbahh 2 in die für die Schlauchbildung bevorzugte horizontale Ebene umgelenkt werden. Die in Richtung des Pfeiles 10 bewegte Werkstoffbahn 2 wird dann mittels nicht dargestellter Schlauchbildewerkzeuge, wie Guramisehrägrollcn usw., über das obere Forrableeh 7 zum Schlauch gefalzt. Gleichzeitig erfolgt die BildungMachine firmly anchored holding foot 6 on t which carries two shaped sheets 7 and 8 arranged one above the other to form a side-gusseted tube, which are kept at a distance by means of spacers (not shown). By bending the front end 9 of the lower metal sheet 8, the material web 2 co-operating obliquely from above can be deflected into the horizontal plane preferred for the formation of the hose. The material web 2 moved in the direction of the arrow 10 is then folded over the upper Forrableeh 7 to form a hose by means of hose-forming tools, not shown, such as Guramisehrägrollcn etc. Education takes place at the same time

% der Seitenfalten 11 und 12 mittels der bekannten, beiderseits der Schlauchbildeeinrichtung 3 angeordneten, nicht dargestellten Rollen, die die Werkstoffbahn 2 in gewünschter Weii-je in den zwischen den Formblechen 7 und 8 verbleibenden Raum drücken. Die Anordnung der Schlauchbildewerkzeuge ist so gewählt, daß Ial der Bildung des Schlauches, wie oben erwähnt, die Ränder 13 und 14 der Polyäthylenbahn 5 sich in der Mitte der Schlawchbahn 15 überlappen und die Ränder 16 und 17 der Papierbahn 4 zwecks Bildung einer Klebenaht an der Längskante 18 der Schlauchbahn 15 überlappt aufeinander liegen. Die so vorbereitete Schlauchbahn 15 durchläuft nun zwecks kontinuierlicher Herstellung einer Schweißnaht 19 die am Ausgang der Schlauchbildeeinrichtung 3 angeordnete erfindungsgemäße Schweißvorrichtung 20 in Richtung des Pfeiles 10. Die % of the side folds 11 and 12 by means of the known rollers, not shown, which are arranged on both sides of the tube forming device 3 and which press the material web 2 in the desired manner into the space remaining between the shaped sheets 7 and 8. The arrangement of the hose forming tools is chosen so that Ial the formation of the hose, as mentioned above, the edges 13 and 14 of the polyethylene web 5 overlap in the middle of the tubular web 15 and the edges 16 and 17 of the paper web 4 to form an adhesive seam on the Longitudinal edge 18 of the tubular web 15 overlap one another. The hose web 15 prepared in this way now runs through the welding device 20 according to the invention arranged at the outlet of the hose forming device 3 in the direction of the arrow 10 for the purpose of continuously producing a weld seam 19

" Schweißvorrichtung besteht im wesentlichen aus einem Heizband 21, das geringfügig in das obore Formblech 7 der Schlauchbildeeinrichtung 3 eingelassen ist. Das Formblech 7 ist hierfür mit einer Ausfräsung 22 versehen, die mit wämelscHsreiädem Asbestzement 23 ausgekleidet ist. In dieser Auskleidung 22 ist das Heizband 21 so eingebettet, daß es gegenüber der Oberfläche des Formbleches 7 geringfügig vorsteht, und zwar gerade so weit, daß eine einwandfreie Wärmeübertragung an die Schweißstelle gewährleistet ist."The welding device consists essentially of a heating band 21, the slightly in the upper forming plate 7 of the hose forming device 3 is embedded. For this purpose, the shaped sheet 7 is provided with a cutout 22 which is lined with wämelscHsreiädem asbestos cement 23 is. The heating band 21 is embedded in this lining 22 in such a way that it is opposite the surface of the shaped sheet 7 protrudes slightly, just so far that a flawless Heat transfer to the weld is guaranteed.

109809/1684109809/1684

BAD ORfQfNALBAD ORfQfNAL

Um ein Verschmieren des Heizbandcs 21 mit ahgeschmolzenen Teilen der zu verschweißenden Folie S zu vermeiden!» ist das Heizband 21 mit einem anti-adhäsiv wirkenden seibstklebenden Teflon-Seideband 24 abgedeckt. Die Zu- und Ableitung des elektrischen Stromes zum und vom Heizband 21 erfolgt durch zwei Leitungen 25 und 26, die durch die Bohrungen 27 und 28 im oberen Formbleeh 7 hindurch In den Raum zwischen den Formblechen 7 und 8 geführt werden. Dabei ist die Zuleitung 26 in nicht dargestellter Weise an einen Schweißtrafo angeschlossen, während die Rückleitung des Stromes an den Trafo über die an Masse angeschlossene Ableitung 25 erfolgt*In order to avoid smearing of the heating tape 21 with melted parts of the film S to be welded! the heating tape 21 is covered with an anti-adhesive self-adhesive Teflon silk tape 24. The supply and discharge of the electrical current to and from the heating band 21 takes place through two lines 25 and 26 , which are led through the bores 27 and 28 in the upper molding sheet 7 into the space between the molding sheets 7 and 8. In this case, the supply line 26 is connected to a welding transformer in a manner not shown, while the return of the current to the transformer takes place via the discharge line 25 connected to ground *

Die Regelung der Heizleistung erfolgt in nicht dargestellter Weise über geeignete Regelgeräte, die eine Regelung in Abhängigkeit von der Maschinengeschwindigkeit nach einem älteren Vorschlag der Anmclderin durchführen. Die Ist-Werte der Heizbandtemperatur werden mittels eines unter dem oberen Forssblech 1 befestigten, das Heizband 21 abtastenden Thermoelementes 29· gemessen. The heating power is regulated in a manner not shown using suitable regulating devices which carry out regulation as a function of the machine speed according to an older proposal by the applicant. The actual values of the heating band temperature are measured by means of a thermocouple 29 which is fastened under the upper measuring plate 1 and which scans the heating band 21.

Um eine Verschweißung der Übereinanderliegenden erhitzten Folienränder 13 und 14 zu erzielen« ist eine Anpressung erforderlich; die Über ein mitlaufendes Andrückband 30 erfolgt. Das endlose umlaufende Andrückband 30 wird von einer auf der Welle 31 der Vorzugeinrichtung 32 verankerten Bandrolle 33 angetrieben und läuft noch über die Bandrollen 34 und 35, die so angeordnet sind, daß das Untertrum 36 des Andrückbandes 30 auf der Schlauchbahnmitte aufliegt und damit die zu verschwelSenden Folienränder 13 und 14 im Bereich des Heizbandes 21 überdeckt. Zur Erzeugung des eigentlichen Anpreßdruckes ist über dem Ontertrum 36 des Bandes 30 eine ortsfeste Anpreßeinrichtung 37 vorgesehen, die aus einer Schiene 38 besteht, in der mehrere in gleichmäßigen Abständen auf einer der Länge des Heizbandes 21 entsprechenden Länge angeordnete Blattfedern 3S verankert sind, deren Enden 40 auf dem Untertrum 36 des umlaufenden Andrückbandes 30 gleiten und zu diesem Zweck in Rieh-Around a weld of the heated foil edges lying on top of one another 13 and 14 «a pressure is required; the It takes place via a pressing belt 30 that runs along with it. The endless revolving Pressure belt 30 is from one on the shaft 31 of the preferential device 32 anchored tape roll 33 is driven and still runs over the tape rolls 34 and 35, which are arranged so that the The lower run 36 of the pressure belt 30 rests on the middle of the hose web and thus the film edges 13 and 14 to be welded in Area of the heating tape 21 covered. To generate the actual Contact pressure is fixed over the ontrum 36 of the belt 30 Pressure device 37 is provided, which consists of a rail 38 consists in which a plurality of leaf springs arranged at equal intervals on a length corresponding to the length of the heating tape 21 3S are anchored, the ends 40 of which on the lower run 36 of the circumferential pressure belt 30 slide and for this purpose in Rieh-

109809/168109809/168

tung des Pfeiles IO abgebogen sind. Zwecks Einstellung des erforderlichen Anpreßdruckes an die Vorspannung der Blattfedern 39 durch eine entsprechende Zu- oder Abstellbewegung der Schiene 38 in Richtung des Doppelpfeiles 41 verändert Werden.direction of the arrow IO are turned. For the purpose of setting the required Contact pressure on the bias of the leaf springs 39 by a corresponding closing or closing movement of the rail 38 in the direction of the double arrow 41 can be changed.

Die Figur 5 zeigt eine weitere mögliche Äusführungsform der deckeinrichtung. Diese Einrichtung besteht im wesentlichen aus einer auf dem Untertrum 36 des umlaufenden Andrückbandes 30 gleitenden Schiene 42. Die Erzeugung des Anpreßdruckes erfolgt hierbei über zwei auf der Oberseite der Schiene 42 angeordnete Druckfedern 43 und 44, die sich gegen eine ortsfest angeordnete/ aber in Richtung des Doppelpfeiles 45 verstellbare Schiene 46 abstützen. Damit bei der Verstellung der Schiene 46 in Richtung des Doppelpfeiles 45 zwecks Änderung der Federvorspannung und damit der Änderung des Anpreßdruckes die untere Schiene 42 einwandfrei geführt ist, sind die Schäfte von Zylinderkopfschrauben 47 und 48 durch die in der Schiene 46 angebrachten Bohrungen 49 und 50 und die-darunter angeordneten Schraubendruckfedern 41 und 44 hindurchgesteckt und in die entsprechenden, in der Schiene 42 angeordneten Gewindelöcher 51 und 52 eingeschraubt. Um ein überstehen der Köpfe 53 und 54 der Schrauben 47 und 40 gegenüber der Oberfläche der Schiene 46 zu vermeiden t sind sie in koaxial zu den Bohrungen 39 und 50 angeordneten Senkbohrungen 55 und 56 versenkt. Die Ti6fe der Senkbohrungen 55 und 5G ist so bemessen, daß bei annähernd entlasteten Druckfedern der Bund des entsprechenden Schraubenkopfes 53 bzw. 54 im Grunde der Senkbohrungen 55 bzw. 56 anliegt.FIG. 5 shows a further possible embodiment of the deck device. This device essentially consists of a rail 42 sliding on the lower run 36 of the revolving pressure belt 30 Support double arrow 45 adjustable rail 46. So that when the rail 46 is adjusted in the direction of the double arrow 45 for the purpose of changing the spring preload and thus the change in the contact pressure, the lower rail 42 is guided properly, the shafts of cylinder head screws 47 and 48 are through the holes 49 and 50 and in the rail 46 The helical compression springs 41 and 44 arranged underneath are pushed through and screwed into the corresponding threaded holes 51 and 52 arranged in the rail 42. A of the heads 53 and 54 through the screws 47 and 40 relative to the surface of the rail 46 to avoid t they are 55 and 56 sunk in coaxial with the bores 39 and 50 disposed counterbores. The depth of the countersunk bores 55 and 5G is dimensioned so that when the compression springs are approximately relieved, the collar of the corresponding screw head 53 or 54 basically rests against the countersunk bores 55 and 56, respectively.

Unmittelbar nach Durchlaufen der Schweißvorrichtung erreicht die Schlauchbahn 15 die Vorzugeinrichtung 32, die die Schlauchbahn 15 zwecks Durchführung weiterer Arbeitsgänge an entsprechende Einrichtungen weiterleitet. Die Vorzugeinrichtung 32 besteht im wesentlichen aus zwei mit gekordelter bzw. gerändelter Oberfläche versehenen, auf einer angetriebenen, drehbar in den nicht dargestellten Maschlncnseltengestollen gelagerten V/elle 31 befestigten Rollen 57Immediately after passing through the welding device, the Hose web 15, the preferred device 32, which the hose web 15 for the purpose of carrying out further operations on appropriate devices forwards. The preferred device 32 consists essentially of two with a corded or knurled surface, on a driven, rotatable in the not shown Maschlncncncncnfollen mounted wheels 31 fixed rollers 57

109 8 0-9/1684 109 8 0-9 / 1684

und 58, die in Verbindung mit den entsprechend auf einer weiteren» angetriebenen, in den Maschinenseitengestellen drehbar gelagerten Welle 59 befestigten Gegondruckrollen 60 und 61 ein zusätzliches Falzen der Schlauchbahn 15 und das Abziehen der Schlauchbahn ermöglichen. and 58, which in connection with the corresponding on a further » driven, in the machine side frames rotatably mounted shaft 59 attached counter pressure rollers 60 and 61 an additional Fold the hose web 15 and allow the hose web to be pulled off.

Claims (7)

- Io -- Io - PatentansprücheClaims j1J Schlauchbildevorrichtung, insbesondere für Beutel-" ^ herstellungsmaschine^mit einer Einrichtung zum kontinuierlichen Bilden der Längsnaht von aus thermoplastischem Material oder innenseitig mit thermoplastischem Material beschichtetem anderen Werkstoff bestehenden Schläuchen mittels einer Überlappungsschweißnaht, gekennzeichnet durch ein auf der Oberseite des Schlauchbildner-Formbleches (7) angeordnetes Heizband (21) und ein über dem Heizband vorgesehenes, die zu verschweißenden Folienränder (13,14) gegen das Heizband andrtikkendes, mit Bahngeschwindigkeit umlaufendes endloses Andrückband (3o), dessen auf der Bahn aufliegendes unteres Trum im Hetzbandbereich feder-j1J Hose forming device, especially for bag " ^ manufacturing machine ^ with a device for continuous formation of the longitudinal seam from thermoplastic material or on the inside with thermoplastic material coated other material existing hoses by means of a Overlap weld, characterized by a on the top of the hose former forming plate (7) arranged heating band (21) and one provided above the heating band, the one to be welded Foil edges (13,14) pressing against the heating tape, Endless pressure belt (3o) rotating at web speed, the one that rests on the web lower run in the chasing belt area spring- oder gewichtsbelastet 1st.or weighted 1st. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Andrückband (3o) mit Bahngeschwindigkeit angetrieben ist.2. Device according to claim 1, characterized in that that the pressure belt (3o) is driven at web speed. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Heizband (21) in die Oberseite des Schlauchblldner-Formhleches (7) so weit eingelassen wird, daß es gegenüber der Formhiechoberflache3. Apparatus according to claim 1 or 2, characterized in that the heating band (21) in the top of the hose connector-shaped hole (7) let in so far is that it is opposite the Formhiechoberflache BAD ORIGINALBATH ORIGINAL - ii -- ii - nur noch so weit vorsteht, daß noch eine einwandfreie \.'ärmeübertragung an die Schweißstelle möglich ist.only so far projecting that even a perfect \ .'ärmeübertragung is possible to the welding point. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daü die zur Unterbringung des Heizbandes im Formblech vorgesehene Ausnehmung (22) mit wärmeisolierendem Asbestzement (23) ausgekleidet 1st.4. Apparatus according to claim 3, characterized in that daü the recess (22) provided for accommodating the heating tape in the shaped sheet with heat-insulating Asbestos cement (23) lined 1st. 5. Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß das Heizband (21) zur Verhinderung des Festhaftena der zu verschweißenden Folie (5) in an sich bekannter Weise mit Polytetrafluorethylen-Seide (24) abgedeckt 1st.5. Device according to one of claims 1-4, characterized in that the heating tape (21) for prevention of Festhaftena the film to be welded (5) in a manner known per se with polytetrafluoroethylene silk (24) covered 1st. 6. Vorrichtung nach einem der Ansprüche 1-5, dadurch gekennzeichnet, daß zur Erzeugung des Anpreßdruckes Blattfedern (39) vorgesehen sind, die in einem ortsfest angeordneten, in Richtung auf die Bahn verstellbaren Baiken (36) verankert sind und mit einstellbarer Verspannung das untere Trum des umlaufenden Andrückbandes (3o) über dem Heizband (21) gegen die laufende Werkstoffbahn (2) drücken.6. Device according to one of claims 1-5, characterized characterized in that leaf springs (39) are provided to generate the contact pressure, which are fixed in a arranged, adjustable in the direction of the web Baiken (36) are anchored and with adjustable tension the lower run of the circumferential Press the pressure band (3o) above the heating band (21) against the moving material web (2). 7. Vorrichtung nach einem der Ansprüche 1-5, dadurch gekennzeichnet, daß der Anpreßdruck auf einen auf dem Untertrum des umlaufenden Andrückbandes (3o) gleitenden Balken (42) aufgebracht wird, der mittels einstellbarer Druckfedern (43,44) gegen das Untertxum gedrückt v?ird.7. Device according to one of claims 1-5, characterized in that the contact pressure on one on the The lower run of the circulating pressure belt (3o) sliding bar (42) is applied, which is pressed against the lower run by means of adjustable compression springs (43, 44) v? ird. 1 0 9 F1$ I ' 6 8 U 1 0 9 F 1 $ I ' 6 8 U
DE19691938568 1969-07-29 1969-07-29 Hose forming device, in particular for bag manufacturing machines, with a device for continuously forming the longitudinal seam of other material made of thermoplastic material or coated on the inside with thermoplastic material Expired DE1938568C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19691938568 DE1938568C (en) 1969-07-29 Hose forming device, in particular for bag manufacturing machines, with a device for continuously forming the longitudinal seam of other material made of thermoplastic material or coated on the inside with thermoplastic material
FR7027171A FR2055516A5 (en) 1969-07-29 1970-07-23 Tube-forming appts for plastic bags manu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691938568 DE1938568C (en) 1969-07-29 Hose forming device, in particular for bag manufacturing machines, with a device for continuously forming the longitudinal seam of other material made of thermoplastic material or coated on the inside with thermoplastic material

Publications (3)

Publication Number Publication Date
DE1938568A1 true DE1938568A1 (en) 1971-02-25
DE1938568B2 DE1938568B2 (en) 1972-07-13
DE1938568C DE1938568C (en) 1973-02-15

Family

ID=

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1586649B1 (en) * 1967-01-13 1970-12-03 Gruenzweig & Hartmann Stackable packaging container for wet and cold room goods
EP0224808A1 (en) * 1985-11-29 1987-06-10 Hoechst Aktiengesellschaft Apparatus for continuously welding or sealing seams of plastic films
DE4439104A1 (en) * 1994-11-02 1996-05-09 Rovema Gmbh Device for forming a longitudinal seam of a film tube
WO2012093112A1 (en) * 2011-01-07 2012-07-12 Packsys Global (Switzerland) Ltd. Device and method for producing tubes for packaging tubes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1586649B1 (en) * 1967-01-13 1970-12-03 Gruenzweig & Hartmann Stackable packaging container for wet and cold room goods
EP0224808A1 (en) * 1985-11-29 1987-06-10 Hoechst Aktiengesellschaft Apparatus for continuously welding or sealing seams of plastic films
DE4439104A1 (en) * 1994-11-02 1996-05-09 Rovema Gmbh Device for forming a longitudinal seam of a film tube
WO2012093112A1 (en) * 2011-01-07 2012-07-12 Packsys Global (Switzerland) Ltd. Device and method for producing tubes for packaging tubes
US9327463B2 (en) 2011-01-07 2016-05-03 Packsys Global (Switzerland) Ltd. Device and method for producing tubes for packaging tubes

Also Published As

Publication number Publication date
FR2055516A5 (en) 1971-05-07
DE1938568B2 (en) 1972-07-13

Similar Documents

Publication Publication Date Title
DE3136008A1 (en) HOT SEAL DEVICE FOR A PACKING MACHINE
DE2237475B2 (en) Device for producing a foamed, web-like, embossed surface covering
DE2721333A1 (en) METHOD FOR APPLYING PLASTIC STRIPS TO A COATED MATERIAL WEB AND DEVICE FOR CARRYING OUT THE METHOD
EP0498764A1 (en) Apparatus for producing tubular articles
DE1461907A1 (en) Process for the continuous production of rectangular hoses and suitable devices for carrying out these processes
EP0240827B1 (en) Device for the production of air cushion mailing bags
EP0627982A1 (en) Process for manufacturing tubular bodies for packaging tubes
DE2914696C2 (en) Device for applying rider tapes provided with an adhesive to the flat front edges of hose sections or sacks
DE3130090A1 (en) DEVICE FOR PERFORATING OR CUTTING FILMS
DE19612924A1 (en) Device for automatically feeding one end of a web of material
DE1938568A1 (en) Hose forming device for the production of hoses from material webs consisting at least on one side of thermoplastic material
DE2515053A1 (en) DEVICE FOR FOLDING A RAIL-SHAPED MATERIAL AND FORMING EDGE COVERS THAT CAN BE COMBINED WITH POCKET MANUFACTURING MACHINERY
DE1263022B (en) Device for attaching a flexible printing plate to the plate cylinder of a printing machine
DE1938568C (en) Hose forming device, in particular for bag manufacturing machines, with a device for continuously forming the longitudinal seam of other material made of thermoplastic material or coated on the inside with thermoplastic material
DE1293660B (en) Device for gluing different surfaces of workpieces
DE1479145C3 (en) Method and device for the production of bags with a partitioned reinforced hanger
DE1185045B (en) Machine for the production of tube sections with side gussets for folding bags
DE2129970C (en) Device for producing longitudinal weld seams on moving plastic film webs
DE2954251C2 (en) Device for applying rider tapes provided with an adhesive to the flat front edges of hose sections or sacks
DE2129970B1 (en) Device for creating longitudinal weld seams on running plastic film webs
DE1230299B (en) Feeding and welding device for plastic valve sheets
DE1560714C (en) Device for coating a porous sheet with a flexible, sticky plastic layer
DE2858362C2 (en)
DE1479927C (en) Device for joining foils made of non-thermoplastic material
DE1436857C (en) Method and hose machine for the manufacture of plastic side gusset valve bags

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee