DE1063956B - Device for dividing individual containers from a fluid-filled hose or similar containers made of thermoplastic material - Google Patents

Device for dividing individual containers from a fluid-filled hose or similar containers made of thermoplastic material

Info

Publication number
DE1063956B
DE1063956B DEA23284A DEA0023284A DE1063956B DE 1063956 B DE1063956 B DE 1063956B DE A23284 A DEA23284 A DE A23284A DE A0023284 A DEA0023284 A DE A0023284A DE 1063956 B DE1063956 B DE 1063956B
Authority
DE
Germany
Prior art keywords
pressing
conductive material
thermoplastic material
electrode
electrodes
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
DEA23284A
Other languages
German (de)
Inventor
Helmut Lang
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Priority to DEA23284A priority Critical patent/DE1063956B/en
Publication of DE1063956B publication Critical patent/DE1063956B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/26Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis

Description

Vorrichtung zum Abteilen von Einzelbehältern aus einem flüssigkeitsgefüllten Schlauch oder ähnlichen Behälter aus thermoplastischem Kunststoff Es ist bekannt, aus flüssigkeitsgefüllten Schläuchen aus thermoplastischen Kunststoffen durch Anlegung von Querschweißnähten Einzelpackungen abzuteilen, wobei als Schweiß- und Preßwerkzeuge Hochfrequenzelektroden verwendet werden, die mit ihrer Arbeitsfläche unmittelbar auf den Kunststoffschlauch aufgesetzt werden und nur an ihren seitlichen Begrenzungsflächen durch Schichten elektrisch nichtleitenden Materials abgedeckt sind. Es ist ferner bekannt, heim flächenmäßigen Verschweißen von Schichten aus thermoplastischen Kunststoffen zu mehrschichtigen Verbundmaterialien mittels Hochfrequenzelektroden, deren Arbeitsfläche mit einer wärmebeständigen isolierenden Schicht eines geeigneten, gegebenenfalls Luftzellen enthaltenden Kunststoffes zu belegen. Device for dividing individual containers from a liquid-filled one Hose or similar container made of thermoplastic material It is known from liquid-filled hoses made of thermoplastics by application to separate individual packs from transverse welds, using as welding and pressing tools High-frequency electrodes are used that are directly connected to their work surface be placed on the plastic hose and only on its lateral boundary surfaces are covered by layers of electrically non-conductive material. It is further known, home welding of layers of thermoplastics to multi-layer composite materials using high-frequency electrodes, their working surface with a heat-resistant insulating layer of a suitable, optionally To occupy plastic containing air cells.

Die Erfindung bezieht sich auf eine Preß- und Schweißvorrichtung zum Abteilen von Einzelbehältern aus einem mit Flüssigkeit gefüllten Schlauch oder ähnlichen, aus aufeinandergelegten Folien gebildeten Behälter aus thermoplastischem Kunststoff, bestehend aus einem Hochfrequenzelektrodenpaar, von denen wenigstens eine der Elektroden in einem ihre seitlichen Begrenzungsflächen umgebenden und an der Pressung teilnehmenden Körper aus elektrisch nichtleitendem Material über die Preßfläche hinaus verschiebbar geführt ist. Erfindungsgemäß ist diese bekannte Vorrichtung in der Weise ausgebildet, daß zur Aufrechterhaltung einer geschlossenen Preßfläche, unter Anwendung einer an sich bekannten Abschirmung Ider Arbeitsflächen der Elektroden zur Schonung der Kunststoffflächen, der die Elektrode umgebende Preßkörper aus elektrisch nichtleitendem Material eine zur Schweißstelle hin durch eine dünne Wand abgeschlossene, axial verlaufende längliche Kammer aufweist, in der die Elektrode in Richtung zu und von der Preßstelle beweglich verschiebbar ist. The invention relates to a pressing and welding device for dividing individual containers from a hose filled with liquid or similar thermoplastic containers formed from superimposed films Plastic, consisting of a pair of high-frequency electrodes, at least of which one of the electrodes in one of its lateral boundary surfaces surrounding and on the pressing participating body made of electrically non-conductive material over the Press surface is also guided displaceably. This known device is according to the invention designed in such a way that to maintain a closed pressing surface, using a known shield I of the working surfaces of the electrodes to protect the plastic surfaces, the pressed body surrounding the electrode is made of electrical power a non-conductive material closed off by a thin wall towards the welding point, having axially extending elongated chamber in which the electrode in the direction of and is movably displaceable from the press point.

Vorrichtungen zum Abteilen von flüssigkeitsgefüllten Kunststoffschläuchen in Einzelpackungen müssen folgende Funktionen erfüllen: 1. den flüssigkeitsgefüllten Schlauch an der beabsichtigten Schweißstelle so weit zusammenpressen, daß die Flüssigkeit nach der Seite ausweicht und die gegenüberliegenden Wände des Kunststoffschlauches miteinander in Berührung gebracht werden; 2. in der Preßzone eine Schweißnaht herstellen; 3. während der Herstellung der Schweißnaht die Preßfläche flüssigkeitsfrei halten und den Anpreßdruck aufrechterhalten. Devices for dividing liquid-filled plastic hoses in single packs must fulfill the following functions: 1. the liquid-filled Compress the hose at the intended welding point so far that the liquid dodges to the side and the opposite walls of the plastic tube be brought into contact with each other; 2. Create a weld seam in the press zone; 3. Keep the pressing surface free of liquid during the production of the weld seam and maintain the contact pressure.

Zu diesem Zweck sind zahlreiche, mehr oder minder komplizierte Apparaturen entwickelt worden. Die Vorrichtung nach der Erfindung erfüllt die vielseitigen Aufgaben mit einer Einfachheit des apparativen Aufwandes, die bisher noch nicht erreicht war. Sie beruht auf der Kombination einer die Schweißelektrode nicht nur seitlich, sondern auch an ihrer schmalen, als Arbeitsfläche dienenden Unterseite umgebenden Hülse oder Scheide aus elektrisch nichtleitendem Material mit der freien Verschiebbarkeit des Schweißwerkzeuges gegenüber dieser Hülse oder Scheide über eine längere Wegstrecke. Aus der schweizerischen Patentschrift 288 038 war eine Verschiebbarkeit der Elektrode gegenüber der ihr zugeordneten Hülse aus nichtleitendem Material nur um die winzige Wegstrecke der unter der Wärmeentwicklung der Elektrode eintretenden Dickenverminderung der Folienschlauchwandung bekannt. Außerdem war hier die nichtleitende Hülse des Schweißwerkzeuges an dessen Arbeitsfläche offen, so daß das Schweißwerkzeug unmittelbar auf die Schlauchwandung auftraf. Numerous, more or less complicated apparatuses are used for this purpose has been developed. The device according to the invention fulfills the versatile tasks with a simplicity of the equipment that has not yet been achieved was. It is based on the combination of the welding electrode not only on the side, but also on its narrow underside serving as a work surface Sleeve or sheath made of electrically non-conductive material that can be moved freely of the welding tool compared to this sleeve or sheath over a longer distance. From the Swiss patent 288 038 a displaceability of the electrode was compared to its assigned sleeve made of non-conductive material only by the tiny one Distance of the decrease in thickness that occurs when the electrode heats up the tubular film wall known. Also here was the non-conductive sleeve of the Welding tool open at its work surface, so that the welding tool immediately hit the hose wall.

In der Zeichnung ist eine Ausführungsform der Vorrichtung nach der Erfindung dargestellt. Einem Gegenlager 4 aus elektrisch leitendem Material ist ein Preßwerkzeug 1 aus elektrisch nichtleitendem Material gegenübergestellt, das einen axial verlaufenden länglichen Hohlraum 2 aufweist, der an seinem dem Gegenlager zunächstliegenden Ende mit einer nur dünnen Wandung abgeschlossen ist. Innerhalb des Hohlraumes 2 ist die als Schweißwerkzeug dienende Hochfrequenzelektrode 3 selbständig in axialer Richtung verschiebbar angeordnet. In the drawing is an embodiment of the device according to Invention shown. A counter bearing 4 is made of electrically conductive material a pressing tool 1 made of electrically non-conductive material compared, the has an axially extending elongated cavity 2, which at its the counter bearing nearest end is finished with only a thin wall. Within of the cavity 2, the high-frequency electrode 3 serving as a welding tool is independent arranged displaceably in the axial direction.

Das Preßwerkzeug kann aus Preßmasse, Kunststoff, Keramik, Hartgummi od. dgl. hergestellt sein und hat die Form eines schmalen Rechtkants, das zweckmäßig an seinem in Berührung mit dem flüssilgkeitsgefüllten Schlauch zu bringenden Ende verjüngt wird, wie dies in der Zeichnung dargestellt ist. Der flüssigkeits füllte Schlauch 5, 5' wird horizontal über das Gegenlager 4 geführt, und das Preßwerkzeug 1 wird in regelmäßigen Abständen so weit von oben auf den Schlauch herabgesenkt, daß an der Berührungsstelle die Schlauchwandungen unter seitlicher Verdrängung der Flüssigkeit einander genähert und schließlich zur Berührung miteinander gebracht werden. Diese Phase ist in der Zeichnung dargestellt. 5 ist ein bereits einseitig durch eine gleiche Operation abgeteilter Behälter, der nunmehr unter dem Druck des Preßwerkzeuges von dem freien flüssigkeitsgefüllten Schlauchende 5' abgequetscht ist. In diesem Stadium wird die Hochfrequenzelektrode 3 nach abwärts bis zur Kammerunterwand geführt und unter Strom gesetzt, so daß die aufeinandergepreßten Schlauchwandungen an der Berührungsstelle verschweißt werden. The pressing tool can be made of molding compound, plastic, ceramic, hard rubber Od. The like. Be made and has the shape of a narrow square edge that is appropriate at its end to be brought into contact with the liquid-filled tube is tapered like this is shown in the drawing. The liquid filled hose 5, 5 'is guided horizontally over the counter bearing 4, and the pressing tool 1 is lowered from above onto the hose at regular intervals that at the point of contact the hose walls with lateral displacement of the Liquid approached each other and finally brought into contact with each other will. This phase is shown in the drawing. 5 is an already one-sided by the same operation divided container, which is now under the pressure of the Pressing tool squeezed off the free liquid-filled hose end 5 ' is. At this stage, the high-frequency electrode 3 is lowered down to the lower wall of the chamber guided and energized so that the hose walls pressed together be welded at the point of contact.

Claims (1)

PATENTANSPRUCH: Preß- und Schweißvorrichtung zum Abteilen von Einzelbehältern aus einem mit Flüssigkeit gefüllten Schlauch oder ähnlichen, aus aufeinamdergelegten Folien gebildeten Behälter aus thermoplastischem Kunststoff, bestehend aus einem Hoch- frequenzelektrodenpaar, von denen wenigstens eine der Elektroden in einem ihre seitlichen Begrenzungsflächen umgebenden und an der Pressung teilnehmenden Körper aus elektrisch nichtleitendem Material über die Plreßfläche hinaus verschiebbar geführt ist, dadurch gekennzeichnet, daß zur Aufrechterhaltung einer geschlossenen Preßfläche, unter Anwendung einer an sich bekannten Abschirmung der Arbeitsflächen der Elektroden zur Schonung der Kunststoffflächen, der die Elektrode umgebende Preßkörper aus elektrisch nichtlleitendem Material eine zur Schweißstelle hin durch eine dünne Wand abgeschlossene, axial verlaufende längliche Kammer aufweist, in der die Elektrode in Richtung zu und von der Preßstelle verschiebbar ist. PATENT CLAIM: Pressing and welding device for dividing individual containers from a tube filled with liquid or similar, from one on top of the other Foil formed container made of thermoplastic material, consisting of a High- frequency electrode pair, of which at least one of the electrodes in one of their lateral boundary surfaces surrounding and participating in the pressing body Made of electrically non-conductive material, it can be moved beyond the pressing surface is performed, characterized in that to maintain a closed Pressing surface, using a known shielding of the working surfaces the electrodes to protect the plastic surfaces, the compacts surrounding the electrode made of electrically non-conductive material one towards the welding point through a thin one Wall closed, axially extending elongated chamber in which the electrode is displaceable in the direction of and from the press point. In Betracht gezogene Druckschriften: Cisterreichische Patentschriften Nr. 178 854, 183691; schweizerische Patentschrift Nr. 288 038; britische Patentschriften Nr. 577 474, 577 719; USA.-P-atentschnften Nr. 2 142 50S, 2 294 215; Zeitschrift »Modern Plastics«, Bd. 27, Juli 1950, 5. 166. Documents considered: Cisterreichian patents No. 178,854, 183691; Swiss Patent No. 288 038; British patents No. 577 474, 577 719; U.S. Pat. No. 2,142,50S, 2,294,215; magazine "Modern Plastics", vol. 27, July 1950, p. 166.
DEA23284A 1954-08-06 1954-08-06 Device for dividing individual containers from a fluid-filled hose or similar containers made of thermoplastic material Pending DE1063956B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA23284A DE1063956B (en) 1954-08-06 1954-08-06 Device for dividing individual containers from a fluid-filled hose or similar containers made of thermoplastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA23284A DE1063956B (en) 1954-08-06 1954-08-06 Device for dividing individual containers from a fluid-filled hose or similar containers made of thermoplastic material

Publications (1)

Publication Number Publication Date
DE1063956B true DE1063956B (en) 1959-08-20

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DEA23284A Pending DE1063956B (en) 1954-08-06 1954-08-06 Device for dividing individual containers from a fluid-filled hose or similar containers made of thermoplastic material

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1479821B1 (en) * 1960-09-15 1970-10-22 Wilhelm Will Fa Device for welding and separating plastic films lying on top of one another
DE102023103721B3 (en) 2023-02-15 2024-02-22 Alfmeier Präzision SE Welding tool for producing a bladder system and method for producing a fluid-fillable bladder system using the welding tool
DE102023103722B3 (en) 2023-02-15 2024-02-22 Alfmeier Präzision SE Welding tool for producing a bladder system and method for producing a fluid-fillable bladder system using the welding tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2142505A (en) * 1936-10-15 1939-01-03 John R Gammeter Method and apparatus for packaging fluid and semifluid materials
US2294215A (en) * 1939-10-02 1942-08-25 Stokes & Smith Co Apparatus for making containers
GB577474A (en) * 1944-04-22 1946-05-20 British Insulated Cables Ltd Improvements relating to apparatus for heating insulating material by subjecting it to a high frequency field of electric force
GB577719A (en) * 1944-04-22 1946-05-29 British Insulated Cables Ltd Improvements relating to apparatus for heating insulating material by subjecting it to a high frequency field of electric force
CH288038A (en) * 1950-04-05 1952-12-31 Rado Leopold Process for the continuous manufacture of flexible, filled and hermetically sealed containers formed from thermoplastic materials, and machine for carrying out this process.
AT178854B (en) * 1948-11-19 1954-06-25 Leopold Rado Machine for the production of containers filled with liquids or pastes
AT183691B (en) * 1945-09-19 1955-11-10 Leopold Rado Method and device for the production of containers filled with liquids or pastes from a beige non-metallic material of a thermoplastic type, such as vinyl resin and in particular polyvinyl chloride or the like.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2142505A (en) * 1936-10-15 1939-01-03 John R Gammeter Method and apparatus for packaging fluid and semifluid materials
US2294215A (en) * 1939-10-02 1942-08-25 Stokes & Smith Co Apparatus for making containers
GB577474A (en) * 1944-04-22 1946-05-20 British Insulated Cables Ltd Improvements relating to apparatus for heating insulating material by subjecting it to a high frequency field of electric force
GB577719A (en) * 1944-04-22 1946-05-29 British Insulated Cables Ltd Improvements relating to apparatus for heating insulating material by subjecting it to a high frequency field of electric force
AT183691B (en) * 1945-09-19 1955-11-10 Leopold Rado Method and device for the production of containers filled with liquids or pastes from a beige non-metallic material of a thermoplastic type, such as vinyl resin and in particular polyvinyl chloride or the like.
AT178854B (en) * 1948-11-19 1954-06-25 Leopold Rado Machine for the production of containers filled with liquids or pastes
CH288038A (en) * 1950-04-05 1952-12-31 Rado Leopold Process for the continuous manufacture of flexible, filled and hermetically sealed containers formed from thermoplastic materials, and machine for carrying out this process.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1479821B1 (en) * 1960-09-15 1970-10-22 Wilhelm Will Fa Device for welding and separating plastic films lying on top of one another
DE102023103721B3 (en) 2023-02-15 2024-02-22 Alfmeier Präzision SE Welding tool for producing a bladder system and method for producing a fluid-fillable bladder system using the welding tool
DE102023103722B3 (en) 2023-02-15 2024-02-22 Alfmeier Präzision SE Welding tool for producing a bladder system and method for producing a fluid-fillable bladder system using the welding tool

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