DE966703C - Device for cutting and welding hoses made of organic thermoplastics - Google Patents

Device for cutting and welding hoses made of organic thermoplastics

Info

Publication number
DE966703C
DE966703C DED5048A DED0005048A DE966703C DE 966703 C DE966703 C DE 966703C DE D5048 A DED5048 A DE D5048A DE D0005048 A DED0005048 A DE D0005048A DE 966703 C DE966703 C DE 966703C
Authority
DE
Germany
Prior art keywords
welding
cutting
welded
jig
hoses made
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.)
Expired
Application number
DED5048A
Other languages
German (de)
Inventor
Dr Walter Maier
Fritz Reber
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Degussa GmbH filed Critical Degussa GmbH
Priority to DED5048A priority Critical patent/DE966703C/en
Priority to FR1037251D priority patent/FR1037251A/en
Application granted granted Critical
Publication of DE966703C publication Critical patent/DE966703C/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7433—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • 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
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of 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
    • B29C66/70—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
    • 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
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/222—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip comprising at least a single heated wire
    • 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
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/224—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip being a resistive ribbon, a resistive band or a resistive strip
    • 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
    • B29C65/38—Impulse heating
    • 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
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • 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
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Vorrichtung zum Zerschneiden und Verschweißen von Schläuchen aus organischen thermoplastischen Kunststoffen Die Erfindung betrifft eine Vorrichtung zum Zerschneiden und Verschweißen von Schläuchen aus organischen thermoplastischen Kunststoffen.Device for cutting and welding hoses made of organic thermoplastics The invention relates to a device for cutting and welding of hoses made of organic thermoplastics.

Zur Herstellung von Schweißnähten an Filmen, Folien oder anderen Gebilden aus thermoplastisehen Kunststoffen sind eine Reihe von Vorrichtungen bekanntgeworden. Bei den Vorrichtungen, hei denen direkt übertragene Wärme zum Verschweißen zur Anwendung kommt, wird eine heizbare Rolle oder ein Keil gegen die zu verbindenden Teile gepreßt und durch die übertragene Wärme die Verschweißung der freien Folienenden bewirkt. In solchen Vorrichtungen ist jedoch die Verschweißung von Polyäthylenfolien oder -filmen nicht möglich, da das bis zum Erweichungspunkt erhitzte Material an dem heißen, der Wärme- und Druckübertragung dienenden Organ anklebt und somit der kontinuierlichen Durchführung des Schweißvorgangs außerordentliche Schwierigkeiten entgegenstehen. Man hat versucht, diesem Nachteil dadurch zu begegnen, daß entlang der Schweißnaht eine nicht klebende Beilauffolie, wie beispielsweise Cellulosehydrat, zwischen dem die Wärme übertragenden Schweißorgan und der Polyäthylenoberfläche eingeführt wurde. For the production of weld seams on films, foils or others A number of devices are known to be formed from thermoplastic plastics. In the case of devices that use directly transferred heat for welding comes, a heated roller or a wedge is pressed against the parts to be connected and the heat transferred causes the free ends of the film to be welded together. In such devices, however, the welding of polyethylene films or -films not possible because the material, which has been heated to the softening point, is attached to the hot, the heat and pressure transfer serving organ sticks and thus the continuous Execution of the welding process oppose extraordinary difficulties. Attempts have been made to counter this disadvantage in that along the weld seam a non-stick liner, such as cellulose hydrate, between the the heat-transferring welding element and the polyethylene surface was introduced.

Um die umständliche Verwendung einer Beilauffolie zu vermeiden, hat man die zu verschweißende Polyäthylenfolie auf einer Unterlage etwa mittels Klappbügel, der an der unteren Seite ein Heizband trägt, zusammengepreßt. Sodann wird durch einen kurzen Stromstoß die Folie zum Verschmelzen gebracht und der Heizbügel zur Entnahme der Folie erst wieder ;entfernt, wenn die gesamte Vorrichtung abgekühlt ist. Derartige Schweißorgane sind infolge des dauernden Wechsels zwischen Erhitzung und Abkühlung einer sehr starken. Abnutzung ausgesetzt und erfordern außerdem nicht nur eine hohe mechanische Genauigkeit zur Erzeugung eines gleichmäßigen Andrucks der zu verschweißenden Flächen, sondern auch eine umfangreiche, kostspielige lelektrische Einrichtung zur richtigen Bemessung der dauernd wechselnden Stromimpulse. In order to avoid the awkward use of a foil, has the polyethylene film to be welded is placed on a base, for example by means of a folding bracket, which carries a heating tape on the lower side, pressed together. Then through a short current surge caused the film to fuse and the Heating bar to remove the film only again; removed when the entire device has cooled down. Such welding organs are due to the constant change between Heating and cooling a very strong. Exposed to wear and tear and require as well not only a high mechanical accuracy for generating an even pressure the surfaces to be welded, but also an extensive, costly electrical one Equipment for the correct dimensioning of the constantly changing current pulses.

Allen diesen Vorrichtungen ist das Schweißen der Kunststoffolien durch Berühren des Heizorgans unter Druck gemeinsam, von dem die Wärme unmittelbar durch Leitung auf die Schweißstelle und ihre Umgebung übertragen wird. All these devices are the welding of the plastic films by touching the heating element under pressure jointly, from which the heat immediately is transmitted by line to the welding point and its surroundings.

Es ist ferner bekannt, Folien aus Naturkautschuk mit Hilfe einer Apparatur zu zerschneiden und zu säumen, bei welcher die Folien über eine gegebenenfalls geheizte Rolle unter einem auf die Rolle aufgedrückten Rad hindurchgeführt werden. Ebenso ist es bekannt, Folien aus thermoplastischem Material mittels entsprechend geformter Elektroden unter Verwendung eines elektrischen Hochfrequenzfeldes zu verschweißen und an den Schweißkanten abzuschneiden, wobei die miteinander zu verbindenden Stoffe zwischen einer Einspannvorrichtung eingeklemmt werden und dann zusammengepreßt werden. Schließlich ist es auch schon vorgeschlagen worden, Kunststoffolien, vorzugsweise aus Polyäthylen, derart zu Verpackungen, Beuteln od. dgl. zu verschweißen, daß sie zwischen zwei gekühlte Formteile gelegt und die vorstehenden Kanten durch stark erhitzte Wärmeträger aus Metall in kurzer Zeit verschweißt werden. It is also known, films made of natural rubber with the help of a Apparatus to cut up and to hem, in which the foils over a possibly heated roller are passed under a wheel pressed onto the roller. It is also known to use foils made of thermoplastic material accordingly weld shaped electrodes using a high frequency electric field and cut off at the welding edges, whereby the materials to be joined together are clamped between a jig and then pressed together. Finally, it has already been proposed to use plastic films, preferably Made of polyethylene, such as packaging, bags or the like. To be welded that they placed between two cooled moldings and the protruding edges through strongly Heated metal heat transfer media can be welded in a short time.

Gemäß der Erfindung ist die Vorrichtung zum Zerschneiden und Verschweißen von Schläuchen aus organischen thermoplastischen Kunststoffen unter Verwen dung einer Einspannvorrichtung, zwischen deren Klemmbacken die zu verschweißende Schlauchfolie eingelegt ist, derart ausgebildet, daß die Einspannvorrichtung mit einem Schlitz versehen ist, in welchem ein elektrisch beheiztes Heizorgan in Gestalt eines Metalldrahtes, Blechstreifens od. dgl. beweglich geführt ist. In diese Vorrichtung wird ein Schlauch. eingespannt, worauf- die aufeinanderliegenden Teilflächen des Schlauches durchschnitten und die dabei entstehenden Schlauchabschnitte an den Schnittkanten verschweiß werden. Die Erhitzung des Schweißorgans kann entweder durch Stromstoß diskontinuierlich vorgenommen werden, oder es wird dauernd erhitzt. Auf diese Art können bequem und einfach Beutel, Säcke od. dgl. hergestellt werden. According to the invention the device is for cutting and welding of hoses made of organic thermoplastics in use a clamping device with the tubular film to be welded between its clamping jaws is inserted, designed such that the jig with a slot is provided, in which an electrically heated heating element in the form of a metal wire, Sheet metal strip or the like. Is movably guided. A hose is inserted into this device. clamped, whereupon the superimposed partial surfaces of the hose cut through and the resulting hose sections are welded to the cut edges. The heating of the welding organ can be discontinuous either by electric shock or it is continuously heated. In this way you can conveniently and simply bags, sacks or the like. Are produced.

Wird das Schweißorgan längs des in der Einspannvorrichtung ausgesparten Schlitzes durch die aufeinanderliegenden Folien geführt, so wird die zugeführte Wärme lediglich auf die unmittelbar jeweils in der Nähe des Heizorgans liegenden Folienteile übertragen, die in dessen nächster Umgebung zum Schmelzen gelangen, so daß links und rechts vom beheizten Schweißorgan Schnittnähte entstehen und die Schnittkanten beiderseitig miteinander verschweißen, ohne daß eine Wärmeübertragung und damit ein Ankleben an den Einspannr vorrichtungen erfolgt. Es entstehen dabei gleichzeitig zwei Beutel oder Säcke. In ähnlicher Weise können auch bereits gefüllte Beutel verschweißt werden, indem das obere Beutelende mittels einer geeigneten Klammer geschlossen und festgehalten wird und die überstehenden Folienenden mittels eines bewegten Heizorgans durchgetrennt und gleichzeitig durch Schweißung geschlossen werden. The welding organ is recessed along the length of the jig Slit passed through the stacked foils, the fed Heat only to those in the immediate vicinity of the heating element Transfer film parts that melt in the immediate vicinity, so that cut seams arise to the left and right of the heated welding organ and the Weld cut edges together on both sides without any heat transfer and thus sticking to the clamping devices takes place. It is created in the process two bags or sacks at the same time. In a similar way, you can also use already filled Bags are sealed by holding the top end of the bag using a suitable clamp is closed and held and the protruding film ends by means of a moving heating element separated and at the same time closed by welding will.

Die Schweiß- und Schneideinrichtung gemäß der Erfindung kann vielgestaltig ausgeführt werden. The welding and cutting device according to the invention can take many forms are executed.

Es kann beispielsweise ein unmittelbar durch elektrischen Strom geheizter Draht vorgesehen sein, dessen Stärke sich nach der Stärke der zu bearbeitenden Stoffe, also der Folien oder Filme, richtet; stets jedoch muß die Drahtstärke im Vergleich zur Stärke des zu versdiweißenden Materials so gewählt sein, daß die Wärmeübertragung nur jeweils auf einer kleinen Fläche erfolgt. An Stelle eines Drahtes läßt sich auch ein Blechstreifen als Schweiß- und Schneidorgan verwenden.For example, it can be directly heated by an electric current Wire should be provided, the strength of which depends on the strength of the materials to be processed, that is, of foils or films, aligns; however, the wire size must always be compared to the strength of the material to be welded be chosen so that the heat transfer only takes place on a small area at a time. Instead of a wire you can also use a metal strip as a welding and cutting device.

Oder man führt es ähnlich einem Lötkolben aus, bei dem der zur Wärmeübertragung dienende Teil selbst stromlos ist und der an dem dem Wärmeübergang abgekdirten Ende durch eine elektrische Heizwiddung beheizt wird. Schließlich kann insbesondere beim Verschließen von Säcken oder Beuteln die Einispannvorrichtung, die die Enden der zu verschweißenden Folie hält, mit Vorteil nach Art einer einfachen Verschluß zange ausgeführt sein.Or you can do it in a similar way to a soldering iron, with the one used for heat transfer serving part itself is de-energized and the end that is cut off from the heat transfer is heated by an electric Heizwiddung. Finally, especially when Closing sacks or bags using the clamping device that holds the ends of the Holds film to be welded, with advantage in the manner of a simple closure pliers be executed.

Claims (1)

PATENTANSPRUCH: Vorrichtung zum Zerschneiden und Verschweißen von Schläuchen aus organischen thermoplastischen Kunststoffen für die Herstellung von Beuteln, Säcken od. dgl. unter Verwendung einer Einspannvorrichtung, zwischen deren Klemmbacken die zu verschweißende Schlauchfolie eingelegt ist, dadurch gekenn, zeichnet, daß die Einspannvorrichtung mit einem Schlitz versehen ist, in welchem ein elektrisch beheiztes Heizorgan in Gestalt eines Metalldrahtes, Blechstreifens od. dgl. beweglich geführt ist. PATENT CLAIM: Device for cutting and welding Hoses made from organic thermoplastics for the manufacture of Bags, sacks or the like. Using a jig between the Clamping jaws the tubular film to be welded is inserted, characterized by that the jig is provided with a slot in which an electrical heated heating element in the form of a metal wire, sheet metal strip or the like. Movable is led. In Betracht gezogene Druckschriften: Schweizerische Patentschrift Nr. I6I 620; USA.-Patentschriften Nr. 2 117 452, 2 224 OI7, 2372737, 2 40I 99I, 24882I2; Preisblatt 65 »Der Engel-Löter« der Firma Ing. Publications considered: Swiss patent specification No. I6I 620; U.S. Patents Nos. 2 117 452, 2 224 OI7, 2372737, 2 40I 99I, 24882I2; Price sheet 65 "The Angel Solder" from Ing. Erich & Fred Engel, Wiesbaden, Sept. I949; Zeitschrift »Chemistry and Industry« v. 15. 7.Erich & Fred Engel, Wiesbaden, September 1949; Journal »Chemistry and Industry «v. 15. 7. I950, S.555/556; Walter K r a n n i eh, »Kunststoffe im technischen Korrosionsschutz«, München, 1949, S. I75/ 176.I950, pp. 555/556; Walter K r a n n i eh, »Plastics in the technical field Corrosion protection ", Munich, 1949, pp. 175/176.
DED5048A 1950-07-19 1950-07-20 Device for cutting and welding hoses made of organic thermoplastics Expired DE966703C (en)

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Application Number Priority Date Filing Date Title
DED5048A DE966703C (en) 1950-07-19 1950-07-20 Device for cutting and welding hoses made of organic thermoplastics
FR1037251D FR1037251A (en) 1950-07-19 1951-05-18 Process for welding plastics, in particular polyethylene

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DE1037251X 1950-07-19
DED5048A DE966703C (en) 1950-07-19 1950-07-20 Device for cutting and welding hoses made of organic thermoplastics

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104169B (en) * 1957-02-27 1961-04-06 August Schwarzkopf Device for welding thermoplastic plastic films
DE1128631B (en) * 1957-02-20 1962-04-26 Ludwig Hermann Method and device for joining together profiles covered with plastic on the outside
DE1158238B (en) * 1955-12-08 1963-11-28 August Schwarzkopf Separation welding process for plastic foils and device to do so
DE1177801B (en) * 1960-12-30 1964-09-10 Lehmacher & Sohn M Device for separating welding of thermoplastic hose or folded foils
DE1256875B (en) * 1958-04-18 1967-12-21 Lyle F Shabram Device for the continuous production of objects, e.g. B. gloves, made from thermally welded plastic films along the edges

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH161620A (en) * 1931-02-11 1933-05-15 Lonza Ag Process to combine structures made of thermoplastic cellulose derivatives in themselves, with one another or with structures made of other materials.
US2117452A (en) * 1932-09-08 1938-05-17 Us Rubber Co Cut seaming machine
US2224017A (en) * 1937-06-16 1940-12-03 Shellmar Products Co Container and method of making same
US2372737A (en) * 1943-04-16 1945-04-03 Udylite Corp Torch for welding thermoplastic material
US2401991A (en) * 1942-02-25 1946-06-11 British Insulated Cables Ltd Machine for compressing and heating electrically thermoplastic materials
US2488212A (en) * 1945-10-18 1949-11-15 Visking Corp Method of sealing thermoplastic material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH161620A (en) * 1931-02-11 1933-05-15 Lonza Ag Process to combine structures made of thermoplastic cellulose derivatives in themselves, with one another or with structures made of other materials.
US2117452A (en) * 1932-09-08 1938-05-17 Us Rubber Co Cut seaming machine
US2224017A (en) * 1937-06-16 1940-12-03 Shellmar Products Co Container and method of making same
US2401991A (en) * 1942-02-25 1946-06-11 British Insulated Cables Ltd Machine for compressing and heating electrically thermoplastic materials
US2372737A (en) * 1943-04-16 1945-04-03 Udylite Corp Torch for welding thermoplastic material
US2488212A (en) * 1945-10-18 1949-11-15 Visking Corp Method of sealing thermoplastic material

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1158238B (en) * 1955-12-08 1963-11-28 August Schwarzkopf Separation welding process for plastic foils and device to do so
DE1128631B (en) * 1957-02-20 1962-04-26 Ludwig Hermann Method and device for joining together profiles covered with plastic on the outside
DE1104169B (en) * 1957-02-27 1961-04-06 August Schwarzkopf Device for welding thermoplastic plastic films
DE1256875B (en) * 1958-04-18 1967-12-21 Lyle F Shabram Device for the continuous production of objects, e.g. B. gloves, made from thermally welded plastic films along the edges
DE1177801B (en) * 1960-12-30 1964-09-10 Lehmacher & Sohn M Device for separating welding of thermoplastic hose or folded foils

Also Published As

Publication number Publication date
FR1037251A (en) 1953-09-15

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