DE2218287A1 - Bonding thermoplastic mouthpieces and bottles - by friction-welding - Google Patents

Bonding thermoplastic mouthpieces and bottles - by friction-welding

Info

Publication number
DE2218287A1
DE2218287A1 DE19722218287 DE2218287A DE2218287A1 DE 2218287 A1 DE2218287 A1 DE 2218287A1 DE 19722218287 DE19722218287 DE 19722218287 DE 2218287 A DE2218287 A DE 2218287A DE 2218287 A1 DE2218287 A1 DE 2218287A1
Authority
DE
Germany
Prior art keywords
mouthpiece
filler neck
face
head
container
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
DE19722218287
Other languages
German (de)
Inventor
Pier Luigi Presezzo Bergamo Machi (Italien)
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.)
SMIT STAMPAGGIO MATERIE IND TE
Original Assignee
SMIT STAMPAGGIO MATERIE IND TE
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 SMIT STAMPAGGIO MATERIE IND TE filed Critical SMIT STAMPAGGIO MATERIE IND TE
Publication of DE2218287A1 publication Critical patent/DE2218287A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • 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
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin welding
    • 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
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/069—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding the welding tool cooperating with specially formed features of at least one of the parts to be joined, e.g. cooperating with holes or ribs of at least one 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7844—Holding or clamping means for handling purposes cooperating with specially formed features of at least one of the parts to be joined, e.g. cooperating with holes or ribs of at least one 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
    • B29C66/01—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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • 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
    • 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
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/065—HDPE, i.e. high density polyethylene
    • 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
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0063—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Each mouthpiece is fitted with flange and three inside ribs. After its insertion into the bottle opening, a tool enters the mouthpiece and rotates it, engaging at the ribs and also pressing its flange down on the lip of the opening. Heat generated by the friction welds the mouthpiece and opening together.

Description

Verfahren und Vorrichtung zur Verstärkung von zylindrischen Einfüllstutzen an Behältern aus thermoplastischem Kunststoff und für das Verfahren besonders geel.gnetesMundstück Bei größeren nach dem Spritzverfahren hergestellten Behältern aus thermoplastischem Kunststoff ist es bekannt, den Einfüllstutzen durch ein Mundstück zu verstärken. So ist es bekannt, den Einfüllstutzen gewindeartig zu verformen und auf diesen ein mit zugeordneten Gewindeanformungen versehenes Mundstück auf- oder in diesen einzuschrauben. Insbesondere bei größeren Behältern führen Schrumpfspannungen im Bereich des Einfüllstutzens oftmals dazu, daß bei Verwirklichung dieser vßnahmen die erforderliche Abdichtung nicht gewährleistet ist. Besteht z. B. eines der Teile aus Polyäthylen großer wld hoher Dichte und das andere Teil aus Polypropylen, so stehen keine geeigneten Klebstoffe zur Verfügung, um Verbund mit Abdichtung durch Kleben herbeizuführen. Method and device for reinforcing cylindrical filler necks on containers made of thermoplastic material and especially suitable for the procedure In the case of larger thermoplastic containers manufactured using the injection molding process Plastic, it is known to reinforce the filler neck with a mouthpiece. It is known to deform the filler neck in the manner of a thread and to insert it on it Mouthpiece provided with associated thread projections to be screwed on or into this. In the case of larger containers in particular, shrinkage stresses occur in the area of the filler neck often to the fact that the necessary sealing is achieved when these measures are implemented is not guaranteed. Is there e.g. B. one of the parts made of polyethylene large wld high density and the other part made of polypropylene, there are no suitable ones Adhesives available to create a bond with sealing by gluing.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren sowie eine Vorrichtung zur Durchführung des Verfahrens anzugeben, mit der auf einfache Weise ohne aufwendige Gewindeanformungen, sowie unter Verzicht auf den Einsatz von Klebstoff eine Verstärkung von zylindrischen Einfüllstutzen mittels Mundstück herbeiführbar ist.The invention is based on the object of a method and a Specify device for carrying out the method, with which in a simple manner without time-consuming thread formations and without the use of glue a reinforcement of cylindrical filler necks can be brought about by means of a mouthpiece is.

Die Erfindung betrifft ein Verfahren zur Verstärkung von zylindrischen Einfüllstutzen mittels Mundstück an Behältern aus thermoplastischem Kunststoff, insbesondere für mittels Verschlußstopfen verschließbare Behälter. Die Erfindung besteht darin, daß in dem Einfüllstutzen das zugeordnete Mundstück eingeführt wird sowie anschließend Einfüllstutzen mit Behälter und/oder Mundstück um ihre gemeinsame Achse bis zur teilweisen Thermoplastifizierung durch Reibungswärme in Rotation versetzt und beim anschließenden Abkühlen miteinander verschweißt werden. Zweckmäßig wird so vorgegangen, daß der Behälter mit dem Einfüllstutzen fest eingespannt und dem Mundstück eine Rotationsbewegung erteilt wird.The invention relates to a method for reinforcing cylindrical Filler neck by means of a mouthpiece on containers made of thermoplastic material, especially for containers that can be closed by means of sealing plugs. The invention consists in that the associated mouthpiece is inserted into the filler neck and then filler neck with container and / or mouthpiece around their common Axis set in rotation through frictional heat until it is partially thermoplasticized and welded to one another during the subsequent cooling. Will be expedient proceeded so that the container with the filler neck firmly clamped and the The mouthpiece is given a rotational movement.

Die durch die Erfindung erzielten Vorteile sind vor allem darin zu sehen, daß auf einfache Weise ein Verbund zwischen Mündstück und EinfUlitutzen herbeigeführt wird, ohne daß aufwendige bewindeanformungen oder der Einsatz von Klebestoffen errorderlich sind. Insbesondere lassen sich somit auch thermoplastische Kunststoffe miteinander verbinden, die bislang nicht durch Klebstoffe miteinander verbindbar sind.The advantages achieved by the invention are mainly to be found therein see that a connection between the mouthpiece and EinfUlitutzen is brought about in a simple manner becomes necessary without the need for complex deformations or the use of adhesives are. In particular, thermoplastic plastics can thus also be combined with one another connect, which so far could not be connected to one another by adhesives.

Die Erfindung betrifft auch eine Vorrichtung zur Durchführung des Verfahrens die dadurch gekennzeichnet ist, daß eine an einen Drehantrieb angeschlossene sowie axial verstellbare Welle mit einem in ein Mündstück einführbaren sowie diese mit axialem Druck beaufschlagbaren Einsteckkopf versehen ist und im Einsteckkopf Aufnahmen für Teile des Mundstücks vorgesehen sind. Nach einem besonderen Vorschlag der Erfindung ist der Aufbau so getroffen, daß der Einsteckkopf umfangseitig an dem in ein Mundstück einführbaren Teil mit in der Stirnfläche ausmündenden Aufnahmenuten versehen ist, und einen Anschlagbund zur stirnseitigen Beaufschlagung des Mundstückes aufweist.The invention also relates to an apparatus for performing the Method which is characterized in that one connected to a rotary drive as well as axially adjustable shaft with an insertable into a mouthpiece as well as this is provided with axially pressurizable plug-in head and in the plug-in head Recordings for parts of the mouthpiece are provided. According to a special suggestion of the invention, the structure is made so that the plug-in head on the circumference the part that can be inserted into a mouthpiece and has receiving grooves opening into the end face is provided, and a stop collar for frontal loading of the mouthpiece having.

Die Erfindung betrifft ferner ein Mundstück welches zur Durchführung des Verfahrens besonders geeignet ist, mit der Kennzeichnung, daß an einem Hohlzylinder ein die Stirnseite eines zugeordneten Einfüllstutzens abdeckender Bund oder Flansch vorgesehen ist sowie innenseitig im Bereich der in einem Einfüllstutzen einzuführenden Stirnseite federartige sich in axialer Richtung erstreckende Vorsprünge angeordnet sind.The invention also relates to a mouthpiece which is used for implementation of the method is particularly suitable, with the indication that on a hollow cylinder a collar or flange covering the end face of an associated filler neck is provided and on the inside in the area to be introduced into a filler neck End face arranged spring-like projections extending in the axial direction are.

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert; es zeigen: Fig. 1 die Seitenansicht eines Mundstückes, welches für das Verfahren besonders geeignet ist, Fig. 2 eine Aufsicht auf den Gegenstand nach Fig. 1, Fig. 3 einen Schnitt durch den Gegenstand nach Fig. 2 in Richtung der Pfeile III-III und Fig. 4 einen Schnitt durch einen Behälter mit eingesetztem Mundstück sowie den zugeordneten Teil einer Vorrichtung zur Befestigung des Mundstückes im Einfüllstutzen des Behälter.In the following the invention is based on only one embodiment illustrative drawing explained in more detail; 1 shows the side view of a Mouthpiece, which is particularly suitable for the method, Fig. 2 is a plan view of the object according to FIG. 1, FIG. 3 shows a section through the object according to FIG. 2 in the direction of arrows III-III and Fig. 4 is a section through a container with inserted mouthpiece and the associated part of a device for fastening the mouthpiece in the filler neck of the container.

In dem Ausführungsbeispiel ist ein Mundstück 1 aus thermoplastischem Kunststoff mit einem Flansch oder einem einen großen Durchmesser aufweisenden Bund 2 versehen, wobei innen federartig profilierte Vorsprünge 3 vorgesehen sind.In the exemplary embodiment, a mouthpiece 1 is made of thermoplastic Plastic with a flange or large diameter collar 2 provided, with spring-like profiled projections 3 being provided on the inside.

Das Mundstück wird an einen Behälter 4 aus thermoplastischem Kunststoff angesetzt.The mouthpiece is attached to a container 4 made of thermoplastic material scheduled.

Der Behälter kann beispielsweise eine Kanne für Brennstoffe sein, beispielsweise Kerosin, in parallelpipedischer Form.The container can, for example, be a can for fuel, for example kerosene, in parallelepiped form.

Aufgrund der Abmessungen und der Form des Behälters 4 ist die Verformung des Querschnittes des Einfüllstutzens durch Schrumpfspannungen gewöhnlich mehr oder weniger regelmäßig.Due to the dimensions and the shape of the container 4, the deformation is the cross section of the filler neck usually more or more due to shrinkage stresses less regularly.

In diesen Einfüllstutzen 5 des Behälters 4 wird ein Mundstück 1 eingesetzt, so daß die Außenfläche des eingeschobenen Teils des Mundstückes 1 mit der Innenseite des zylindrischen Einfüllstutzens 5 in Berührung kommt. Außerdem ist ein Einsteckkopf 6 mit einer Welle 7 gekuppelt, welche mittels eines Motors in Drehung versetzt wird. Der Einsteckkopf 6 wird in das Mundstück 1 eingeführt und einige Ausnehmungen 8 des Einsteckkopfes 6 kommen mit den inneren Vorsprüngen 3 des Mundstückes 1 in Wirkverbindung. Wenn daher die Welle 7 in Umdrehung versetzt wird, wird das Mundstück 1 aufgrund des Eingriffs der Vorsprünge 5 mitgenommen. Der Behälter 4 wird dagegen festgehalten. Da nun die beiden Oberflächen des Mundstückes und des Einfüllstutzens 5 miteinander in Berührung sind, entwickelt sich durch die Umdrehung Reibungswärme. Auch die Innenseite des Flansches 2 kommt mit der Stirnseite B des Einfüllstutzens 5 in Berührung. Daher werden. aufgrund der entstehenden Reibungswärme die in Berührung befindlichen Oberflächen plastifiziert, wenn ein bestimmter Grad an Plastifizierung erreicht ist, wird der Einsteckkopf 6 zum Stillstand gebracht, also die Drehung des Einsteckkopfes 6 und des Mundstücks 1 wird eingestellt. Das System kühlt sich damit ab und es wird letzten Endes die Verschweißung zwischen dem Mundstück 1 und den Einfüllstutzen 5 erzielt. Die Innenseite des Mundstückes 1 ist genau zylindrisch und kann daher einen geeigneten Verschlußstopfen für einen einwandfreien Verschluß aufnehmen.A mouthpiece 1 is inserted into this filler neck 5 of the container 4, so that the outer surface of the inserted part of the mouthpiece 1 with the inside of the cylindrical filler neck 5 comes into contact. There is also a plug-in head 6 is coupled to a shaft 7 which is set in rotation by means of a motor. The plug-in head 6 is inserted into the mouthpiece 1 and some recesses 8 of the plug-in head 6 come into operative connection with the inner projections 3 of the mouthpiece 1. Therefore, when the shaft 7 is rotated, the mouthpiece 1 is due the engagement of the projections 5 taken along. The container 4 is held against it. Since now the two surfaces of the mouthpiece and the filler neck 5 with each other are in contact frictional heat through the rotation. The inside of the flange 2 also comes with the end face B of the filler neck 5 in touch. Hence be. due to the resulting frictional heat that comes into contact existing surfaces plasticized when a certain degree of plasticization is reached, the insertion head 6 is brought to a standstill, so the rotation the plug-in head 6 and the mouthpiece 1 are adjusted. The system is cooling so from and it is ultimately the weld between the mouthpiece 1 and the filler neck 5 achieved. The inside of the mouthpiece 1 is exactly cylindrical and can therefore use a suitable sealing plug for a perfect seal take up.

Es wird bemerkt, daß die Vorsprünge 3 kein Hindernis darstellen, da sie im unteren Teil der Innenfläche des Mundstücks 1 vorgesehen sind, Insbesondere sind Mittel vorgesehen, wodurch, wenn sich der Einsteckkopf 6 in Drehung befindet, dieser einen Druck auf das Mundstück 1 erteilt, welches sich mit seinem Flansch 2 an der Stirnseite B des Einfüllstutzens abstützt.It is noted that the projections 3 are not an obstacle because they are provided in the lower part of the inner surface of the mouthpiece 1, in particular means are provided whereby, when the plug-in head 6 is in rotation, this issued a pressure on the mouthpiece 1, which is with its flange 2 is supported on the face B of the filler neck.

Claims (5)

Patentansprüche:Patent claims: 1. Verfahren zur Verstärkung von zylindrischen Einfüllstutzen mittels Mundstück an Behältern aus thermoplastischem Kunststoff, insbesondere für mittels Verschlußstopfen verschließbare Behälter, d a d u r c h g e k e n n z e i c h n e t, daß in den Einfüllstutzen das zugeordnete Mundstück eingeführt wird sowie anschließend Einfüllstutzen mit Behälter und/oder Mundstück um ihre gemeinsame Achse bis zur teilweisen Thermoplastifizierung durch Reibungswärme in Rotation versetzt und beim anschließenden Abkühlen miteinander verschweißt werden.1. Method for reinforcing cylindrical filler necks by means of Mouthpiece on containers made of thermoplastic material, in particular for means Sealing plugs for closable containers, that is not indicated e t that the associated mouthpiece is introduced into the filler neck and then Filler neck with container and / or mouthpiece around their common axis up to partial thermoplastic caused by frictional heat in rotation and at subsequent cooling are welded together. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Behälter mit dem Einfüllstutzen fest eingespannt und dem Mundstück eine Rotationsbewegung erteilt wird.2. The method according to claim 1, characterized in that the container with the filler neck firmly clamped and the mouthpiece a rotational movement is granted. 3. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß eine an einen Drehantrieb angeschlossene sowie axial verstellbare Welle (7) mit einem in ein Mundstück (1) einführbaren sowie dieses mit axialem Druck beaufschlagbaren Einsteckkopf (6) versehen ist, und daß im Einsteckkopf (6) Aufnahmen (8) für Teie (3) des Mundstückes (1) vorgesehen sind.3. Apparatus for performing the method according to claim 1, characterized characterized in that one connected to a rotary drive and axially adjustable Shaft (7) with a mouthpiece (1) that can be inserted and this with axial pressure loadable plug-in head (6) is provided, and that in the plug-in head (6) recordings (8) are provided for part (3) of the mouthpiece (1). 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Einsteckkopf (6) umfangseitig an dem in ein Mundstück (1) einführbaren Teil mit in der Stirnfläche ausmündenden Aufnahmenuten (8) versehen ist und einen Anschlagbund zur stirnseitigen Beaufschlagung des Mundstückes (1) aufweist.4. Apparatus according to claim 3, characterized in that the insertion head (6) on the circumference of the part that can be inserted into a mouthpiece (1) with the end face opening grooves (8) is provided and a stop collar to the end face Has loading of the mouthpiece (1). 5. Mundstück, dadurch gekennzeichnet, daß an einem Hohlzylinder ein die Stirnseite eines zugeordneten Einfüllstutzens (5) abdeckender Bund oder Flansch (2) vorgesehen sowie innenseitig im Bereich der in einen Einfüllstutzen (5) einzuführenden Stirnseite federartige sich in axialer Richtung erstreckende Vorsprünge (3) angeordnet sind.5. mouthpiece, characterized in that a hollow cylinder the end face of an associated filler neck (5) covering collar or flange (2) and on the inside in the area of a filler neck (5) to be introduced End face spring-like projections (3) extending in the axial direction are arranged are.
DE19722218287 1971-05-19 1972-04-15 Bonding thermoplastic mouthpieces and bottles - by friction-welding Pending DE2218287A1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105858A2 (en) * 1982-10-01 1984-04-18 Cosden Technology Inc. Container and method for manufacture
FR2544407A1 (en) * 1983-04-18 1984-10-19 Legris METHOD AND DEVICE FOR ASSEMBLING MULTIPLE ORGANS, IN PARTICULAR LINK ORGANS FOR FLUID FITTINGS
EP0239248A2 (en) * 1986-03-26 1987-09-30 CMB Foodcan plc Method of spin-welding
FR2653378A1 (en) * 1989-10-24 1991-04-26 Bosch Siemens Hausgeraete LINK BETWEEN FRICTION WELDED ELEMENTS AND A SURFACE.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105858A2 (en) * 1982-10-01 1984-04-18 Cosden Technology Inc. Container and method for manufacture
EP0105858A3 (en) * 1982-10-01 1985-07-31 Cosden Technology Inc. Container and method for manufacture
FR2544407A1 (en) * 1983-04-18 1984-10-19 Legris METHOD AND DEVICE FOR ASSEMBLING MULTIPLE ORGANS, IN PARTICULAR LINK ORGANS FOR FLUID FITTINGS
WO1984004069A1 (en) * 1983-04-18 1984-10-25 Legris Method and device for assembling a plurality of members, particularly connection members for fluid connectors
US4712809A (en) * 1983-04-18 1987-12-15 Societe Anonyme Styled Legris Method and device for assembling several components, particularly connection fittings for fluid couplings
EP0239248A2 (en) * 1986-03-26 1987-09-30 CMB Foodcan plc Method of spin-welding
EP0239248A3 (en) * 1986-03-26 1989-09-27 CMB Foodcan plc Method of spin-welding
FR2653378A1 (en) * 1989-10-24 1991-04-26 Bosch Siemens Hausgeraete LINK BETWEEN FRICTION WELDED ELEMENTS AND A SURFACE.

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