DE1239838B - Wiper nozzle for removing excess resin from fiberglass strands soaked with synthetic resin - Google Patents

Wiper nozzle for removing excess resin from fiberglass strands soaked with synthetic resin

Info

Publication number
DE1239838B
DE1239838B DEL48671A DEL0048671A DE1239838B DE 1239838 B DE1239838 B DE 1239838B DE L48671 A DEL48671 A DE L48671A DE L0048671 A DEL0048671 A DE L0048671A DE 1239838 B DE1239838 B DE 1239838B
Authority
DE
Germany
Prior art keywords
nozzle
wiper nozzle
resin
removing excess
synthetic resin
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
DEL48671A
Other languages
German (de)
Inventor
Siegfried Thiele
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL48671A priority Critical patent/DE1239838B/en
Publication of DE1239838B publication Critical patent/DE1239838B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/12—General methods of coating; Devices therefor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Reinforced Plastic Materials (AREA)

Description

Abstreiferdüse zum Entfernen des Harzüberschusses aus mit Kunstharz getränkten Glasfasersträngen Die vorliegende Erfindung betrifft eine Abstreiferdüse zum Entfernen des Harzüberschusses aus mit Kunstharz getränkten Glasfasersträngen mit einem sich in Durchlaufrichtung der Glasfaserstränge konisch verjüngenden Querschnitt.Wiper nozzle for removing excess resin from synthetic resin impregnated glass fiber strands The present invention relates to a wiper nozzle to remove excess resin from fiberglass strands soaked with synthetic resin with a cross section that tapers conically in the direction of passage of the glass fiber strands.

Diese bekannten Düsen weisen im Inneren eine glatte, geschlossene Oberfläche auf. Da bei größerer Strangdicke der Staudruck erheblich wird, so daß mit einer Zerstörung der außenliegenden Fasern des Glasfaserstranges zu rechnen ist, hat man schon versucht, diese Schwierigkeit dadurch zu beheben, daß der Strang durch mehrere hintereinander angeordnete Teildüsen mit gestuften Endquerschnitten gezogen wird. These known nozzles have a smooth, closed interior Surface on. Since the back pressure is considerable with a larger strand thickness, so that Expect the external fibers of the glass fiber strand to be destroyed attempts have already been made to remedy this difficulty by removing the strand by several sub-nozzles arranged one behind the other with stepped end cross-sections is pulled.

Mit einer derartigen Anordnung kann zwar der Druck in verhältnismäßig günstigen Grenzen gehalten werden, jedoch bleibt auch bei dieser abgestuften Düsenanordnung die Schwierigkeit des Einfädelns des Glasfaserstranges durch die Düse, insbesondere bei Arbeitsbeginn oder bei Spulenwechsel der Stränge oder bei Störungen, wenn z. B. der Strang oder Teilstränge unterbrochen werden. With such an arrangement, the pressure can be in proportion favorable limits are kept, but this staggered nozzle arrangement remains the difficulty of threading the fiberglass strand through the nozzle, in particular at the start of work or when changing the bobbins of the strands or in the event of malfunctions, e.g. B. the strand or sub-strands are interrupted.

Die angedeuteten Schwierigkeiten werden mit der Abstreiferdüse gemäß der vorliegenden Erfindung weitgehend behoben. Dies wird dadurch erreicht, daß die Wandung der Abstreiferdüse aus einer Drahtwendel gebildet ist. The indicated difficulties are with the wiper nozzle according to of the present invention largely resolved. This is achieved in that the Wall of the wiper nozzle is formed from a wire helix.

In weiterer Ausbildung der Erfindung hat es sich in bestimmten Fällen als besonders zweckmäßig erwiesen, zwei oder mehrere Drahtwendeldüsen ineinanderzudrehen. Dadurch wird die Mantelfläche der Düse dichter, bzw. die durch die Wendel gebildete Spaltöffnung wird verringert. In a further development of the invention, it has been found in certain cases proved to be particularly expedient to twist two or more wire helix nozzles into one another. This makes the outer surface of the nozzle more dense, or that formed by the helix Gap opening is reduced.

Ein Ausführungsbeispiel einer Abstreiferdüse nach der vorliegenden Erfindung ist in der Zeichnung dargestellt. Sie besteht aus einer sich von der Eingangsseite aus konisch verjüngenden Drahtwendel, durch welche der harzgetränkte Glasfaserstrang hindurchgezogen wird. Die Windungen am Düsenende sind jedoch mit gleichem Durchmesser ausgeführt. Sie gewährleisten den gewünschten Endquerschnitt des Stranges; überschüssige Harzmasse tritt am Ende der Düse nur noch in geringem Maß aus. An embodiment of a wiper nozzle according to the present invention Invention is shown in the drawing. It consists of a down from the entrance side made of conically tapered wire helix through which the resin-soaked fiberglass strand is pulled through. However, the windings at the nozzle end are of the same diameter executed. They ensure the desired end cross-section of the strand; excess Resin compound only emerges to a small extent at the end of the nozzle.

Die erfindungsgemäße Düse bietet den Vorteil, daß ein Strang in die Wendel eingedreht werden kann und nicht mit einem Ende durch die Düsenöffnung eingefädelt werden muß. Ein weiterer Vorteil der Düse besteht darin, daß sie die Möglichkeit bietet, zusätzlich weitere Stränge während des Betriebes der Düse zuzuführen. Beim Durchziehen durch die wendelförmige Düse erfolgt das Abquetschen des Harzes bei verhältnismäßig niedrigen Einzeldrücken fortlaufend in den enger werdenden Wendelringen. The nozzle of the invention has the advantage that a strand in the Helix can be screwed in and not threaded through the nozzle opening with one end must become. Another advantage of the nozzle is that it has the ability to offers to feed additional strands during operation of the nozzle. At the By pulling it through the helical nozzle, the resin is squeezed out relatively low individual pressures continuously in the spiral rings that are becoming narrower.

Claims (2)

Patentansprüche: 1. Abstreiferdüse zum Entfernen des Harzüberschusses aus mit Kunstharz getränkten Glasfasersträngen mit einem sich in Durchlaufrichtung der Glasfaserstränge konisch verjüngenden Querschnitt, dadurch gekennzeichnet, daß die Wandung der Abstreiferdüse aus einer Drahtwendel gebildet ist. Claims: 1. Wiper nozzle for removing excess resin made of fiberglass strands impregnated with synthetic resin with a running direction the glass fiber strands conically tapering cross-section, characterized in that the wall of the wiper nozzle is formed from a wire helix. 2. Abstreiferdüse nach Anspruch 1, dadurch gekennzeichnet, daß zwei oder mehr Drahtwenden ineinandergedreht sind. 2. Wiper nozzle according to claim 1, characterized in that two or more wire turns are twisted into one another. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 2 911. References considered: U.S. Patent No. 2,911.
DEL48671A 1964-08-31 1964-08-31 Wiper nozzle for removing excess resin from fiberglass strands soaked with synthetic resin Pending DE1239838B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL48671A DE1239838B (en) 1964-08-31 1964-08-31 Wiper nozzle for removing excess resin from fiberglass strands soaked with synthetic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL48671A DE1239838B (en) 1964-08-31 1964-08-31 Wiper nozzle for removing excess resin from fiberglass strands soaked with synthetic resin

Publications (1)

Publication Number Publication Date
DE1239838B true DE1239838B (en) 1967-05-03

Family

ID=7272580

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL48671A Pending DE1239838B (en) 1964-08-31 1964-08-31 Wiper nozzle for removing excess resin from fiberglass strands soaked with synthetic resin

Country Status (1)

Country Link
DE (1) DE1239838B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871911A (en) * 1953-01-13 1959-02-03 Glastrusions Apparatus for producing elongated articles from fiber-reinforced plastic material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871911A (en) * 1953-01-13 1959-02-03 Glastrusions Apparatus for producing elongated articles from fiber-reinforced plastic material

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