DE102017128333B3 - Adapter and method of manufacturing a container using the adapter and container with the adapter - Google Patents
Adapter and method of manufacturing a container using the adapter and container with the adapter Download PDFInfo
- Publication number
- DE102017128333B3 DE102017128333B3 DE102017128333.1A DE102017128333A DE102017128333B3 DE 102017128333 B3 DE102017128333 B3 DE 102017128333B3 DE 102017128333 A DE102017128333 A DE 102017128333A DE 102017128333 B3 DE102017128333 B3 DE 102017128333B3
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- DE
- Germany
- Prior art keywords
- adapter
- container
- thermoplastic material
- thermoplastic
- wall
- 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.)
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
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- 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
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
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- 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
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- 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
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- 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
- B29C66/712—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 the composition of one of the parts to be joined being different from the composition of the other part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
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- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/03177—Fuel tanks made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material
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- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
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- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5872—Non-integral spouts
- B65D75/5877—Non-integral spouts connected to a planar surface of the package wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
- B29C2049/2017—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements outside the article
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
- B29C2049/2021—Inserts characterised by the material or type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
- B29C2049/2021—Inserts characterised by the material or type
- B29C2049/2047—Tubular inserts, e.g. tubes
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
- B29C2049/2086—Means for verifying or keeping the position of the insert, e.g. sensors, or attachment on mould wall
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/20—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
- B29C2049/2095—Means for preparing or treating the inserts, e.g. cutting, deforming, heating, cooling or applying adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
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- B60K2015/03453—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together
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- B60K2015/03542—Mounting of the venting means
Abstract
Die Erfindung betrifft einen Adapter (1) zur Befestigung eines in einen Behälter aus thermoplastischem Kunststoff einzusetzenden Anschlusselements, insbesondere zur Befestigung eines in einen Kraftstoffbehälter aus thermoplastischem Kunststoff einzusetzenden Ventils, umfassend wenigstens einem ersten und einem zweiten thermoplastischen Kunststoff, umfassend einen Stützkörper (2) mit einem einstückig angeformten, außen umlaufenden Kragen (4), der eine Fügefläche zur Verbindung mit dem Behälter bildet, wobei der Stützkörper (2) aus dem ersten thermoplastischen Kunststoff besteht und die Fügefläche eine Schweißauflage zur Verschweißung mit dem Behälter aufweist, die mit dem Stützkörper (2) einteilig ausgebildet ist und wobei die Schweißauflage aus einen Mischung von thermoplastischen Kunststoffen besteht, die den ersten und den zweiten thermoplastischen Kunststoff umfasst (Fig.1).The invention relates to an adapter (1) for fastening a connection element to be inserted into a container made of thermoplastic material, in particular for fastening a valve to be inserted into a thermoplastic fuel tank comprising at least a first and a second thermoplastic material, comprising a support body (2) an integrally formed, outer circumferential collar (4), which forms a joining surface for connection to the container, wherein the support body (2) consists of the first thermoplastic material and the joining surface has a welding pad for welding to the container, which with the supporting body ( 2) is formed in one piece and wherein the welding pad consists of a mixture of thermoplastic materials comprising the first and the second thermoplastic material (Fig.1).
Description
Die Erfindung betrifft einen Adapter zur Befestigung eines in einen Behälter aus thermoplastischem Kunststoff einzusetzenden Anschlusselements. Die Erfindung betrifft weiterhin ein Verfahren zur Herstellung eines Behälters mit einem solchen Adapter sowie einen Behälter mit dem Adapter.The invention relates to an adapter for fastening a connection element to be inserted into a container made of thermoplastic material. The invention further relates to a method for producing a container with such an adapter and a container with the adapter.
Die Erfindung betrifft insbesondere einen Adapter zur Befestigung eines in einen Kraftstoffbehälter aus thermoplastischem Kunststoff einzusetzenden Anschlusselements.In particular, the invention relates to an adapter for fastening a connection element to be inserted into a fuel tank of thermoplastic material.
Aus der
Aus der
Als Anschlusselemente im Sinne der vorliegenden Erfindung kommen beispielsweise Ventile, Ventilgehäuse, Anschlussstutzen, Nippel oder dergleichen in Betracht.Suitable connection elements for the purposes of the present invention are, for example, valves, valve housings, connecting pieces, nipples or the like.
Insbesondere an Kraftstoffbehälter werden erhöhte Anforderungen an deren Beständigkeit und Undurchlässigkeit für Kohlenwasserstoffe gestellt. Moderne Kraftstoffbehälter umfassen daher in der Regel einen Wandaufbau aus einem Laminat an thermoplastischen Kunststoffen mit einer oder mehreren für Kohlenwasserstoffe schwer permeablen Barriereschichten, die eine direkte Diffusion von Kohlenwasserstoffen durch die Wand des Kraftstoffbehälters verhindern. In dieser Hinsicht problematisch sind jedoch Anschlussöffnungen in dem Kraftstoffbehälter, die einen Dichtsitz für Stutzen, Ventile oder dergleichen bilden. Anschlussöffnungen in der Wand des Kraftstoffbehälters stellen zwangsläufig Unterbrechungen des Barrieresystems dar. Es sind verschiedene Möglichkeiten bekannt, Anschlusselemente in im Kraftstoffbehälter vorgesehene Anschlussöffnungen spielfrei und im Wesentlichen für den Durchtritt von Kohlenwasserstoffen abgedichtet einzusetzen. Beispielsweise besteht die Möglichkeit, die Anschlusselemente mit der Behälterwand zu verschweißen. Häufig bestehen Anschlusselemente wie beispielsweise Anschlussstutzen oder Ventilgehäuse aus einem thermoplastischen Kunststoff, der nicht im Sinne einer Verschweißbarkeit mit der Behälterwand kompatibel ist. Dann kommt ein Verschweißen mit der Behälterwand nicht ohne weiteres in Betracht, insbesondere für Ventile und Anschlussstutzen, die aus Materialien wie POM (Polyoxymethylen) oder ABS (Acrylnitril-Butadien-Styrol-Copolymer) bestehen. Es ist bekannt, dass Polyethylen und Polyoxymethylen nicht miteinander verschweißbar sind. Deswegen ist es bekannt, aus POM bestehende Ventile oder Nippel mit einem aus PE oder HDPE angespritzten Schaft zu versehen, der im Bereich der Anschlussöffnung des Behälters mit diesem verschweißt wird, beispielsweise im Heizelement-Schweißverfahren.Especially on fuel tanks are made more stringent demands on their durability and impermeability to hydrocarbons. Modern fuel tanks therefore typically include a wall structure of a laminate of thermoplastics having one or more barrier layers which are difficult to permeate hydrocarbons and which prevent direct diffusion of hydrocarbons through the wall of the fuel tank. In this regard, however, problematic are connection openings in the fuel tank, which form a sealing seat for nozzles, valves or the like. Connection openings in the wall of the fuel tank inevitably constitute interruptions of the barrier system. There are various ways known to use connection elements in connection openings provided in the fuel tank clearance and essentially sealed for the passage of hydrocarbons. For example, it is possible to weld the connection elements with the container wall. Often there are connecting elements such as spigot or valve body made of a thermoplastic material that is not compatible in terms of weldability with the container wall. Then a welding with the container wall is not easily considered, in particular for valves and connecting pieces, which consist of materials such as POM (polyoxymethylene) or ABS (acrylonitrile-butadiene-styrene copolymer). It is known that polyethylene and polyoxymethylene are not welded together. It is therefore known to provide valves or nipples made of POM with a shaft injection-molded from PE or HDPE, which is welded to the latter in the region of the connection opening of the container, for example in the heating element welding method.
Die Herstellung von spritzgegossenen Mehr-Komponenten-Bauteilen aus beispielsweise POM und HDPE ist verhältnismäßig aufwendig, insbesondere ist es aufwendig, die betreffenden Bauteile nach Fertigstellung des Behälters mit der Behälterwand zu verschweißen, beispielsweise mittels Schweißrobotern durch Rotationsschweißen oder im Heizelement-Schweißverfahren unter Verwendung von Schweißspiegeln.The production of injection molded multi-component components such as POM and HDPE is relatively expensive, in particular it is expensive to weld the relevant components after completion of the container with the container wall, for example by welding robots by spin welding or in the heating element welding process using welding mirrors ,
Der Erfindung liegt daher die Aufgabe zugrunde, einen kostengünstig herzustellenden Adapter zur Befestigung von in einen Behälter aus thermoplastischem Kunststoff einzusetzende Anschlusselemente bereitzustellen, der verhältnismäßig einfach mit dem Behälter zu verbinden ist.The invention is therefore an object of the invention to provide an inexpensive to manufacture adapter for mounting in a container made of thermoplastic material to be used connecting elements, which is relatively easy to connect to the container.
Der Erfindung liegt weiterhin die Aufgabe zugrunde, ein einfaches Verfahren zur Herstellung eines Behälters aus thermoplastischem Kunststoff bereitzustellen, dass eine Verbindung des Adapters mit dem Behälter während des Verfahrens ermöglicht.The invention is further based on the object of providing a simple method for producing a container made of thermoplastic material that allows a connection of the adapter to the container during the process.
Die Aufgabe wird gelöst mit den Merkmalen der unabhängigen Ansprüche. Vorteilhafte Ausgestaltungen der Erfindung ergeben sich jeweils aus den Unteransprüchen.The object is solved with the features of the independent claims. Advantageous embodiments of the invention will become apparent from the dependent claims.
Nach einem Gesichtspunkt der Erfindung ist ein Adapter zur Befestigung eines in einen Behälter aus thermoplastischem Kunststoff einzusetzenden Anschlusselements vorgesehen, wobei der Adapter wenigstens einen ersten und einen zweiten thermoplastischen Kunststoff und einen Stützkörper mit einem einstückig angeformten, außen umlaufenden Kragen umfasst, der eine Fügefläche zur Verbindung mit dem Behälter bildet, wobei der Stützkörper aus dem ersten thermoplastischen Kunststoff besteht und die Fügefläche eine Schweißauflage zur Verschweißung mit dem Behälter aufweist, wobei die Schweißauflage mit dem Stützkörper einteilig ausgebildet ist und wobei die Schweißauflage aus einer Mischung von thermoplastischen Kunststoffen besteht, die den ersten und den zweiten thermoplastischen Kunststoff umfasst.According to one aspect of the invention, an adapter is provided for fastening a connection element to be inserted into a container made of thermoplastic material, wherein the adapter has at least one first and one second thermoplastic material and a support body with an integrally formed, outer circumferential collar, which forms a joining surface for connection to the container, wherein the supporting body consists of the first thermoplastic material and the joining surface has a welding pad for welding to the container, wherein the welding pad with the support body is integrally formed and wherein the welding pad consists of a mixture of thermoplastic materials, comprising the first and the second thermoplastic material.
Einteilig im Sinne der vorliegenden Erfindung ist im Sinne von „monolithisch“ zu verstehen. Die Schweißauflage und der Stützkörper sind durch molekulare Durchdringung der beteiligten Kunststoffe zumindest im Bereich ihrer Grenzflächen miteinander verbunden.One-piece in the sense of the present invention is to be understood in the sense of "monolithic". The welding pad and the support body are connected to each other by molecular penetration of the plastics involved at least in the region of their interfaces.
Ein solcher Adapter lässt sich durch ein Mehr-Komponenten- Spritzgussverfahren herstellen.Such an adapter can be produced by a multi-component injection molding process.
Bei einer bevorzugten Variante des Adapters gemäß der Erfindung ist vorgesehen, dass der erste thermoplastische Kunststoff aus einem Polyoxymethylen besteht und dass der zweite thermoplastische Kunststoff aus einer Mischung von Polyoxymethylen und Polyethylen besteht. Die Mischung kann als Polyethylen beispielsweise ein LDP oder ein HDPE umfassen.
Der Stützkörper und die Schweißauflage sind vorzugsweise ausschließlich oder überwiegend stoffschlüssig miteinander verbunden, d.h., der erste thermoplastische Kunststoff und die Mischung aus dem ersten und zweiten thermoplastischen Kunststoff sind durch gegenseitige molekulare Durchdringung miteinander verbunden.In a preferred variant of the adapter according to the invention it is provided that the first thermoplastic consists of a polyoxymethylene and that the second thermoplastic consists of a mixture of polyoxymethylene and polyethylene. The mixture may include as polyethylene, for example, an LDP or a HDPE.
The support body and the welding pad are preferably exclusively or predominantly materially bonded to each other, ie, the first thermoplastic material and the mixture of the first and second thermoplastic materials are interconnected by mutual molecular penetration.
Der Stützkörper umfasst zweckmäßigerweise eine Durchführung für ein Ventilgehäuse, welches mit dem Stützkörper verrastet oder verschweißt ist.The support body expediently comprises a passage for a valve housing, which is locked or welded to the support body.
Eine Durchführung im Sinne der Erfindung ist eine durchgängige Öffnung in dem Adapter, die beispielsweise in Form eines zylindrischen Kanals ausgebildet sein kann, der beidseitig geöffnet ist.A passage in the context of the invention is a continuous opening in the adapter, which may be formed for example in the form of a cylindrical channel which is open on both sides.
Der Stützkörper kann im einfachsten Fall als Ringscheibe ausgebildet sein, die eine Einfassung für das Anschlusselement, beispielsweise in Form eines Ventilgehäuses bildet.The support body may be formed in the simplest case as an annular disc, which forms a border for the connection element, for example in the form of a valve housing.
Beispielsweise kann der Stützkörper auf seiner der Schweißauflage abgewandten Seite mit einer Schweißfläche für das Anschlusselement versehen sein.For example, the support body may be provided on its side facing away from the welding pad with a welding surface for the connecting element.
Bei einer bevorzugten Variante der Erfindung ist der Adapter zur Aufnahme eines Ventilgehäuses für ein Be- oder Entlüftungsventil des Behälters ausgebildet.In a preferred variant of the invention, the adapter is designed to receive a valve housing for a ventilation or venting valve of the container.
Vorzugsweise bildet der Stützkörper eine stutzenförmige Einfassung für ein zylindrisches Ventilgehäuse.Preferably, the support body forms a nozzle-shaped enclosure for a cylindrical valve housing.
Bei einer weiteren vorteilhaften Ausgestaltung des Adapters gemäß der Erfindung kann vorgesehen sein, dass die Schweißauflage und der Kragen des Stützkörpers ineinandergreifende profilierte Verbindungsflächen aufweisen, die eine innige Verzahnung zwischen der Schweißauflage und dem Kragen bilden. Dadurch wird die Haftung zwischen dem Stützkörper und der Schweißauflage zusätzlich verbessert.In a further advantageous embodiment of the adapter according to the invention can be provided that the welding pad and the collar of the support body have interlocking profiled connecting surfaces which form an intimate toothing between the welding pad and the collar. As a result, the adhesion between the support body and the welding pad is additionally improved.
Zweckmäßigerweise erstreckt sich der Kragen rechtwinklig zu einer Längsmittelachse des Adapters. Die Schweißauflage kann eine ringscheibenförmige, flache Fügefläche zur Verbindung mit dem Behälter bilden.Conveniently, the collar extends at right angles to a longitudinal center axis of the adapter. The welding pad may form an annular disk-shaped, flat joining surface for connection to the container.
Zweckmäßigerweise ist die Durchführung des Stützkörpers als zylindrischer Stutzen oder Rohrfortsatz ausgebildet, der wenigstens eine Dichtfläche bildet oder der wenigstens eine Aufnahme für wenigstens ein Dichtelement aufweist. Beispielsweise kann innerhalb der Durchführung ein Ventilgehäuse eines Entlüftungsventils mittels O -Ringen abgedichtet sein.Appropriately, the implementation of the support body is designed as a cylindrical neck or pipe extension, which forms at least one sealing surface or which has at least one receptacle for at least one sealing element. For example, can be sealed by means of O-rings within the implementation of a valve housing of a vent valve.
Ein weiterer Gesichtspunkt der vorliegenden Erfindung betrifft ein Verfahren zum Extrusionsblasformen eines Behälters aus thermoplastischem Kunststoff mit wenigstens einer Durchführung durch eine Wand des Behälters, wobei das Verfahren folgende Verfahrensschritte umfasst:
- -Bereitstellen eines Adapters mit einem oder mehreren Merkmalen der vorstehend beschriebenen Art,
- -Einbringen eines Vorformlings aus thermoplastischem Kunststoff in ein Blasformwerkzeug mit einem Formnest, welches die Kontur des Behälters definiert,
- -Ausformen des Vorformlings innerhalb des Formnestes, wobei der Vorformling formnestseitig gegen den in das Werkzeug eingelegten Adapter ausgeformt und mit dem Adapter im Bereich der Fügefläche des Adapters verschweißt wird und
- - Herstellen einer Öffnung in der Wand des Behälters mittels eines Werkzeugs, welches von außen durch eine Durchführung des Adapters hindurch geführt wird.
- Providing an adapter having one or more features of the type described above,
- Introducing a preform made of thermoplastic material into a blow molding tool having a mold cavity which defines the contour of the container,
- Forming the preform within the mold cavity, wherein the preform is molded on the Formnestseitig against the adapter inserted in the tool and welded to the adapter in the region of the joining surface of the adapter, and
- - Making an opening in the wall of the container by means of a tool which is guided from the outside through a passage of the adapter.
Unter „formnestseitig“ im Sinne der vorliegenden Erfindung ist diejenige Seite zu verstehen, welche dem Inneren des Formnestes zugekehrt ist, wohingegen unter „werkzeugseitig“ im Sinne der vorliegenden Erfindung diejenige Seite zu verstehen ist, die der Wandung der Kavität des Blasformwerkzeugs zugekehrt ist."Formnestseitig" in the context of the present invention is that side to understand which is facing the interior of the mold cavity, whereas "tool side" in the sense of the present invention is to be understood as that side which faces the wall of the cavity of the blow mold.
Der Adapter gemäß der Erfindung wird bei dem Verfahren nach der Erfindung vorzugsweise als Einlegeteil in ein Blasformwerkzeug verwendet.The adapter according to the invention is preferably used in the method according to the invention as an insert in a blow mold.
Das Verfahren gemäß der Erfindung umfasst weiterhin vorzugsweise das Herstellen einer Öffnung in der Wand des Behälters mittels eines Werkzeugs, welches von außen durch die Durchführung des Adapters hindurch geführt wird.The method according to the invention further preferably comprises making an opening in the wall of the container by means of a tool, which is guided from the outside through the passage of the adapter.
Das Verfahren gemäß der vorliegenden Erfindung kann als Extrusionsblasformverfahren im herkömmlichen Sinne vorgesehen sein, d.h. dass das Verfahren das Extrudieren und Bereitstellen eines schlauchförmigen Vorformlings aus plastifiziertem thermoplastischen Kunststoff umfasst. Die Durchführung des Verfahrens unter Verwendung von bahnförmigen Vorformlingen, beispielsweise als sogenanntes „Twin Sheet Blow Moulding Verfahren“ ist jedoch grundsätzlich nicht ausgeschlossen.The process according to the present invention may be provided as an extrusion blow molding process in the conventional sense, i. that the method comprises extruding and providing a tubular plasticized thermoplastic preform. The implementation of the method using web-shaped preforms, for example, as a so-called "twin-sheet blow molding process" is not excluded in principle.
Bei dem Verfahren kann vorgesehen sein wenigstens einen schlauchförmigen Vorformling aus plastifiziertem thermoplastischem Kunststoff oberhalb eines zunächst geöffneten, zweiteiligen Blasformwerkzeugs in Schwerkraftrichtung zu extrudieren. Unter einem zweiteiligen Blasformwerkzeug ist im Wesentlichen ein Blasformwerkzeug mit zwei Blasformhälften zu verstehen, die in bekannter Art und Weise an Formaufspannplatten eines Schließgestells angeordnet sind.In the method, it may be provided to extrude at least one tubular preform made of plasticized thermoplastic material above an initially opened, two-part blow molding tool in the direction of gravity. A two-part blow molding tool is essentially a blow molding tool having two blow mold halves, which are arranged in a known manner on platens of a closing frame.
Das Verfahren gemäß der Erfindung umfasst die Extrusion eines mehrschichtigen Vorformlings auf der Basis von HDPE. Der Vorformling kann ein oder mehrere Barriereschichten für Kohlenwasserstoffe umfassen.The process according to the invention comprises the extrusion of a multilayer preform based on HDPE. The preform may comprise one or more hydrocarbon barrier layers.
Jede der Blasformhälften kann eine Kavität aufweisen, wobei die Kavitäten der Blasformhälften bei dem geschlossenem Blasformwerkzeug ein Formnest definieren, dass die Außenkontur des zu fertigenden Behälters definiert.Each of the blow mold halves may have a cavity, wherein the cavities of the blow mold halves define a mold cavity in the closed blow mold that defines the outer contour of the container to be manufactured.
Jede der Blasformhälften kann mehrere Teile, insbesondere auch Schieber oder dergleichen aufweisen.Each of the blow mold halves may have a plurality of parts, in particular slides or the like.
In wenigstens einer der Kavitäten kann wenigstens eine Ausnehmung zur Aufnahme des Adapters gemäß der Erfindung vorgesehen sein.In at least one of the cavities, at least one recess may be provided for receiving the adapter according to the invention.
Bei dem Verfahren gemäß der Erfindung umschließt der Vorformling den Adapter formnestseitig vorzugsweise so, dass der Vorformling bzw. die spätere Wand des Behälters aus thermoplastischem Kunststoff zunächst die von dem Adapter definierte vorzugsweise zylindrische Durchführung formnestseitig nach Art eines Sacklochs verschließt, wobei dieser Teil der Wand des Behälters mittels eines weiteren Werkzeugs von außen geöffnet wird. Von außen bedeutet in diesem Zusammenhang entweder nach Entnahme des Behälters aus dem Blasformwerkzeug oder innerhalb des Blasformwerkzeugs formnestseitig, d.h. beispielsweise mittels eines in den Vorformling eingeschossenen Blasdorns.In the method according to the invention, the preform preferably surrounds the adapter on the mold side such that the preform or the later wall of the thermoplastic container initially closes the preferably cylindrical feedthrough defined by the adapter in the manner of a blind hole, this part of the wall of the Container is opened by means of another tool from the outside. From the outside in this context means either after removal of the container from the blow mold or within the blow mold on the mold side, that is. for example, by means of a blowing mandrel inserted into the preform.
Das Verfahren gemäß der Erfindung hat den Vorzug, dass dieses im Vergleich zu den bekannten Verfahren verhältnismäßig einfach durchführbar ist und dass mittels des Adapters eine maßhaltige und bereits kalibrierte Öffnung in der Wand des Behälters bereitgestellt wird.The method according to the invention has the advantage that this is relatively easy to carry out in comparison to the known methods and that a dimensionally stable and already calibrated opening in the wall of the container is provided by means of the adapter.
Bevorzugt wird der Adapter in eine hierfür vorgesehene Ausnehmung in einer Kavität des Blasformwerkzeugs eingesetzt. Dabei wird der Adapter bevorzugt vor dem Einsetzen in die Ausnehmung der Kavität des Blasformwerkzeugs erwärmt bzw. vorgewärmt beispielsweise mittels eines Infrarotheizstrahlers. Sodann erfolgt das Einbringen des Vorformlings aus thermoplastischem Kunststoff in das Blasformwerkzeug, wobei der Vorformling mit der Fügefläche des Adapters verschweißt wird. Durch das Vorwärmen oder Vorheizen des Adapters wird die Verschweißbarkeit des Adapters mit dem noch warmplastischen Vorformling verbessert.Preferably, the adapter is inserted into a recess provided for this purpose in a cavity of the blow molding tool. In this case, the adapter is preferably heated prior to insertion into the recess of the cavity of the blow molding tool or preheated, for example by means of an infrared heater. Then, the introduction of the preform made of thermoplastic material in the blow mold, wherein the preform is welded to the joining surface of the adapter takes place. By preheating or preheating the adapter, the weldability of the adapter is improved with the still warm plastic preform.
Ein weiterer Gesichtspunkt der vorliegenden Erfindung betrifft einen extrusionsblasgeformten Behälter aus thermoplastischem Kunststoff mit mindestens einer Durchführung in einer Wand des Behälters, wobei die Durchführung durch einen Adapter gemäß der Erfindung gebildet wird, der von der Wand des Behälters teilweise umschlossen ist, wobei die Wand des Behälters mit der Fügefläche des Adapters verschweißt ist.Another aspect of the present invention relates to an extrusion blow molded thermoplastic container having at least one passage in a wall of the container, the passage being formed by an adapter according to the invention partially enclosed by the wall of the container, the wall of the container is welded to the joining surface of the adapter.
Vorzugsweise besteht die Wand des Behälters aus einem thermoplastischen Kunststoff, der eine Außenschicht aus Polyethylen oder auf der Basis von Polyethylen aufweist, die mit der Schweißauflage des Adapters verschweißt ist. Die Außenschicht kann beispielsweise ein HDPE oder ein modifiziertes LDP umfassen.Preferably, the wall of the container is made of a thermoplastic material which has an outer layer of polyethylene or polyethylene-based, which is welded to the welding pad of the adapter. The outer layer may comprise, for example, an HDPE or a modified LDP.
Die Erfindung wird nachstehend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels erläutert.The invention will be explained below with reference to an embodiment shown in the drawings.
Es zeigen:
-
1 eine perspektivische Ansicht eines Adapters nach einem ersten Ausführungsbeispiel der Erfindung mit einem von dem Adapter aufgenommenen Ventil, -
2 eine Schnittansicht durch den Adapter und das Ventil gemäß1 , -
3 eine perspektivische Ansicht des Adapters nach dem ersten Ausführungsbeispiel der Erfindung, -
4 eine vergrößerte Ansicht des DetailsIV in3 , -
5 eine perspektivische Ansicht eines Adapters nach einem zweiten Ausführungsbeispiel der Erfindung mit einem von dem Adapter aufgenommenen Ventil, -
6 eine Schnittansicht durch den Adapter und das Ventil gemäß5 und -
7 eine Schnittansicht des Adapters gemäß dem zweiten Ausführungsbeispiel der Erfindung.
-
1 a perspective view of an adapter according to a first embodiment of the invention with a valve received by the adapter, -
2 a sectional view through the adapter and the valve according to1 . -
3 a perspective view of the adapter according to the first embodiment of the invention, -
4 an enlarged view of the detailIV in3 . -
5 a perspective view of an adapter according to a second embodiment of the invention with a valve received by the adapter, -
6 a sectional view through the adapter and the valve according to5 and -
7 a sectional view of the adapter according to the second embodiment of the invention.
Der in
Der Adapter
Die Schweißauflage
Das Zusammenwirken des Nutprofils 6 A und des Rippenprofils 6 B ist auch aus
Die Schweißauflage
Wie dies insbesondere aus den
Bei dem Ausführungsbeispiel gemäß den
Das zweite Ausführungsbeispiel des Adapters
Wenn das Entlüftungsventil
Wie vorstehend bereits erwähnt, zeigt
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Adapteradapter
- 22
- Stützkörpersupport body
- 33
- Durchführungexecution
- 44
- Kragencollar
- 55
- Schweißauflagewelding edition
- 6A6A
- Nutprofil des KragensGrooved profile of the collar
- 6B6B
- Rippenprofil der SchweißauflageRib profile of the sweat pad
- 77
- Umfassungswand des StützkörpersSurrounding wall of the supporting body
- 88th
- Rastfederncatch springs
- 99
- Ventilgehäusevalve housing
- 1010
- Entlüftungsventilvent valve
- 1111
- Rastaufnahmenlocking receivers
- 1212
- O-RingeO-rings
- 1313
- Schweißflächewelding surface
- 1414
- Schweißkragenwelding collar
- 1515
- Vorsprüngeprojections
Claims (11)
Priority Applications (2)
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DE102017128333.1A DE102017128333B3 (en) | 2017-11-29 | 2017-11-29 | Adapter and method of manufacturing a container using the adapter and container with the adapter |
PCT/EP2018/082279 WO2019105846A1 (en) | 2017-11-29 | 2018-11-22 | Adapter and method for producing a container by using the adapter, and container having the adapter |
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DE102017128333.1A DE102017128333B3 (en) | 2017-11-29 | 2017-11-29 | Adapter and method of manufacturing a container using the adapter and container with the adapter |
Publications (1)
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DE102017128333B3 true DE102017128333B3 (en) | 2018-12-06 |
Family
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DE102017128333.1A Active DE102017128333B3 (en) | 2017-11-29 | 2017-11-29 | Adapter and method of manufacturing a container using the adapter and container with the adapter |
Country Status (2)
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DE (1) | DE102017128333B3 (en) |
WO (1) | WO2019105846A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102009034612A1 (en) | 2009-07-27 | 2011-02-10 | Mt Aerospace Ag | Connection device for containers utilized for e.g. retaining drinking water in e.g. submarine, has boundary region supported in groove or recess by flexible element that is inserted into groove or recess |
US20120074207A1 (en) | 2010-09-24 | 2012-03-29 | Bostwick Christopher C | Methods and apparatus to provide a protective barrier to fuel tank coupling apparatus |
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DE19535413C1 (en) * | 1995-09-23 | 1996-10-02 | Rasmussen Gmbh | Tube-like nozzle for connection to vessel of HDPE with thermoplastic part |
JP2002192663A (en) * | 2000-12-22 | 2002-07-10 | Polyplastics Co | Sheet for thermal welding, composite moldings using this sheet and manufacturing method for composite moldings |
JP2002339825A (en) * | 2001-03-16 | 2002-11-27 | Tokai Rubber Ind Ltd | Cylindrical body installing structure to fuel tank |
JP5179916B2 (en) * | 2008-03-27 | 2013-04-10 | 本田技研工業株式会社 | Plastic fuel tank structure in vehicles |
EP3124305A1 (en) * | 2015-07-31 | 2017-02-01 | Plastic Omnium Advanced Innovation and Research | A liquid vehicle tank comprising fastened component |
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DE102009034612A1 (en) | 2009-07-27 | 2011-02-10 | Mt Aerospace Ag | Connection device for containers utilized for e.g. retaining drinking water in e.g. submarine, has boundary region supported in groove or recess by flexible element that is inserted into groove or recess |
US20120074207A1 (en) | 2010-09-24 | 2012-03-29 | Bostwick Christopher C | Methods and apparatus to provide a protective barrier to fuel tank coupling apparatus |
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