Kautex Textron Gmbh & Co. Kg

Matthias Borchert

Dirk Eulitz

Harald Lorenz

Gerd Wolter

Timo Kramer

Christoph Mehren

Deniz Bienhuls

Timo Kraemer

Klaus Gebert

Carsten Elsasser

Robert Lower

Markus Hutzen

Deniz Bienhuels

Thomas Buchholz

Steffen Frey

Klaus Esser

Jochen Hild

Joachim Eckhardt

Thomas Froitzheim

Cristoph Mehren

Marcus Schmitz

Markus Huetzen

Robert Loewer

Timo Krämer

Markus HÜTZEN

Deniz BIENHÜLS

Robert LÖWER

Deniz Bienhüls

Robert Löwer

An article enclosing at least one built-in fitment component in the form of a hollow body of thermoplastic material. The hollow body is preferably in the form of a fuel tank. The built-in fitment component is pressed against the inside wall of the article while still plastic so that the plastic material of the hollow body penetrates through at least one recess or opening of the built-in fitment component and flows therebehind.

Container of thermoplastic material

The invention relates to a method for producing hollow bodies from thermoplastic material comprising the shaping of at least one tubular preform or at least two two-dimensional, web-like preforms of plasticated thermoplastic material into a substantially closed hollow body, for example in the form of a fuel tank for motor vehicles.

Method of producing a hollow body from thermoplastic material

The invention concerns a process for the production of a container, in particular a fuel tank of thermoplastic material, by extrusion blow molding, wherein during shaping of the container within a multi-part tool the container is provided with at least one connecting element passing through the wall thereof, wherein with at least a part of the connecting element as a lost shaping male die the wall of the container is displaced from one side into a tool placed on the oppositely side of the container wall and removed. The invention further concerns a fuel tank with at least one connecting element which is connected to the tank wall at least in region-wise manner by intimate joining of the materials involved.

Process for the production of a fuel tank and fuel tank

The invention relates to a method for producing hollow bodies from thermoplastic material by using an at least three-part blow-molding tool with at least two blow-mold halves (), which define a mold impression, have part-cavities () and can be displaced toward one another and away from one another in the sense of an opening and closing movement, and also with at least one central tool (), which is displaceable transversely in relation to the opening and closing movement of the blow-mold halves (), the method comprising the extruding or providing and arranging of at least two molten performs () of thermoplastic material in web form between the blow-mold halves () in an opened receiving position, the bringing to bear of the preforms () in the part-cavities () of the blow-mold halves () and molding of them into shells () using sealing elements which are provided on the central tool and are extended from the central tool for the purpose of sealing off the part-cavities before or while the part-cavities are subjected to differential pressure; the joining of at least one insert () in at least one shell () by using the central tool () arranged between the blow-mold halves () and the joining of the shells () to form the closed hollow body by closing the blow-mold halves () while applying clamping force and, if appropriate, the final blow molding of the hollow body.

Method for producing hollow bodies from thermoplastic materials by using an at least three-part blow-molding tool and apparatus for carrying out the method

The invention relates to a method for producing hollow bodies from thermoplastic material, comprising the molding of at least two sheet-like, web-shaped preforms of plasticated thermoplastic material in a multi-part tool forming a cavity to form two complementary shells, and also the joining together of the shells to form a substantially closed hollow body, wherein the preforms are brought between open parts of the tool which each have part-cavities, the parts of the tool are then closed against a tool separator arranged between the preforms, and the preforms are inserted into the part-cavities with the use of differential pressure and molded. In a subsequent separate method step, the tools are reopened and internal components of the hollow body to be produced are fastened to the shells. Finally, the shells are joined together by reclosing the tools to form a closed hollow body.

Method for producing hollow bodies from thermoplastic material and device for carrying out the method

The invention concerns a process for the production of an article enclosing built-in fitment components in the form of a hollow body of thermoplastic material. The hollow body is preferably in the form of a fuel tank. The process includes the extrusion of one or more preforms in web or tube form of plasticized material between the opened portions of a mold tool forming a cavity, wherein at least one built-in fitment component to be enclosed by the finished article is placed between the portions of the mold tool and the tool is closed around the preforms and the built-in fitment component, wherein the preforms within the cavity enclosed by the tool acquire the external configuration of the article. The built-in fitment component is pressed during or directly after the shaping operation against the inside wall of the article while still plastic so that the plastic material of the hollow body penetrates through at least one recess or opening of the built-in fitment component and flows therebehind.

Method for producing a container of thermoplastic material

A blow molding tool () for producing a plastic article, in particular a fuel tank, comprising at least one clamping frame () with mold clamping devices () and at least two blow mold halves, which are formed such that they can be moved together and apart by means of an opening and closing movement of the clamping frame () and which respectively have at least one cavity () for the forming of the plastic article, the blow molding tool () being distinguished by the fact that the mold clamping devices () respectively have at least one tool holder (), in which a mold insert () is in each case exchangeably inserted, and in that the tool holders () respectively form a peripheral sealing edge ().

Blow molding tool and method for producing extrusion blow molded plastic articles

The invention concerns a process for the production of hollow bodies of thermoplastic material, in particular a process for the production of fuel tanks of plastic material. In the process according to the invention preforms in web or band form of plasticized plastic material are shaped in a multi-part tool forming a mold cavity by expansion of the preforms and causing them to bear against the internal contour of the mold cavity. The process firstly includes the production of two mutually complementary intermediate products in the form of shell portions. Then respective built-in fitment components are secured to the respective insides of the shell portions, which face towards each other in the installation position, wherein at least some built-in fitment components of mutually complementary shell portions are respectively of mutually complementary configuration, in the sense that they can be joined to provide an assembled component or to provide a functional unit. The shell portions are assembled in such a way that the mutually complementary built-in fitment components engage into each other and/or come into operative connecting relationship with each other.

Procedure for producing hollow bodies of thermoplastic material

Process for the production of a fuel tank and a fuel tank

The invention concerns a mold tool for the production of extrusion blow molded products, comprising at least three mold portions () which define a mold cavity () and of which two are in the form of outer molds () and one is in the form of a central mold (). The outer molds () and the central mold () are displaceable from and towards each other in the sense of an opening and closing movement of the tool. The central mold () is provided with component holders () which can be moved out of and into the tool plane defined by the central mold and are arranged in turn on a carrier () which is also displaceable with respect to the central mold ().

Mold tool for the production of extrusion blow molded products

The invention concerns a process for the production of hollow bodies of thermoplastic material. In the process according to the invention preforms in web or band form of plasticized material are shaped in a multi-part tool forming a mold cavity comprising two outer molds and at least one central mold which perform an opening and closing movement relative to each other. The central mold is provided with at least one component holder which can be moved of and into the tool plane defined by the central mold. In a first step the component holder is fitted with at least one insert portion, then the insert portion is placed by means of the component holder against the inside wall of an outer mold. In a further step introduction and shaping of the preforms within the tool is effected in a two-stage procedure, wherein firstly the preforms are respectively applied against a contour forming a part of the mold cavity by means of increased pressure and/or reduced pressure and shaped and then the intermediate products forming respective parts of the hollow body are joined together to form a finished product.

Process for the production of hollow bodies of thermoplastic material

The invention concerns a process for the production of hollow bodies of thermoplastic material, in particular a process for the production of fuel tanks of plastic material. In the process according to the invention preforms in web or band form of plasticised plastic material are shaped in a multi-part tool forming a mould cavity by expansion of the preforms and causing them to bear against the internal contour of the mould cavity. The process firstly includes the production of two mutually complementary intermediate products in the form of shell portions. Then respective built-in fitment components are secured to the respective insides of the shell portions, which face towards each other in the installation position, wherein at least some built-in fitment components of mutually complementary shell portions are respectively of mutually complementary configuration, in the sense that they can be joined to provide an assembled component or to provide a functional unit. The shell portions are assembled in such a way that the mutually complementary built-in fitment components engage into each other and/or come into operative connecting relationship with each other.

The invention concerns a process for the production of hollow bodies of thermoplastic material by extrusion blow molding. In the process according to the invention continuous extrusion of at least two preforms in web form of plasticized material is effected by means of a plurality of extrusion devices. The preforms are jointly shaped to form a hollow body in the still plastic condition, that is to say in the first heat, within a multi-part tool forming a mold cavity. In that case a wall thickness profile is imparted to at least one preform during the extrusion operation independently of the respective other preform by continuous nozzle gap adjustment during the extrusion operation.

Process for the production of hollow bodies of thermoplastic material by extrusion blow molding

The invention concerns a fuel tank () of thermoplastic material, comprising functional installation fitments for air intake and venting, for fuel take-off or the like, which is distinguished in that at least one functional installation fitment is connected to the inside wall () of the container in material-bonded relationship in such a way that the functional installation fitment defines with the container wall a volume separated from the filling volume of the container in such a way that the inside wall () of the container serves directly as a boundary wall of said volume.

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Bonn, Germany

Matthias Borchert