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DE556500C - Core for the production of any curved pipes and other fittings - Google Patents

Core for the production of any curved pipes and other fittings

Info

Publication number
DE556500C
DE556500C DEE40893D DEE0040893D DE556500C DE 556500 C DE556500 C DE 556500C DE E40893 D DEE40893 D DE E40893D DE E0040893 D DEE0040893 D DE E0040893D DE 556500 C DE556500 C DE 556500C
Authority
DE
Germany
Prior art keywords
core
wire
production
fittings
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.)
Expired
Application number
DEE40893D
Other languages
German (de)
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.)
Eduard Esser & Co GmbH
Original Assignee
Eduard Esser & Co 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 Eduard Esser & Co GmbH filed Critical Eduard Esser & Co GmbH
Priority to DEE40893D priority Critical patent/DE556500C/en
Application granted granted Critical
Publication of DE556500C publication Critical patent/DE556500C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/44Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • B29C33/505Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible cores or mandrels, e.g. inflatable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00Producing tubular articles
    • B29D23/001Pipes; Pipe joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56Winding and joining, e.g. winding spirally
    • B29C53/58Winding and joining, e.g. winding spirally helically
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00Layered products
    • B29L2009/003Layered products comprising a metal layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • B29L2023/004Bent tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • B29L2023/18Pleated or corrugated hoses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Description

Kern zur Herstellung von beliebig gekrümmten Rohren und anderen Formstücken Es ist bei der Herstellung von Gummischläuchen bekannt, als Kern entweder einen aus schraubenförmig gewundenem Stahlband bestehenden Wickel oder eine Spule aus mehreren sich überkreuzenden Lagen von mit Leimwasser, lackartigen Flüssigkeiten o. dgl. Steifmitteln getränktem Bindfaden zu verwenden.Core for the production of any curved pipes and other fittings It is known in the manufacture of rubber tubing, either as a core consisting of a coil or a coil consisting of helically wound steel strip several intersecting layers of glue water, lacquer-like liquids o. The like. To use stiffening means soaked string.

Die Erfindung sucht die Aufgabe ztt lösen, einen Kern zu schaffen, der bei der Herstellung von Formkörpern aus plastischer erhärtender Masse, wie z. B. Kunstharz, verwendbar ist auch in den Fäl en aus geometrischen Gründen der Formkörper nicht vom Kern abgezogen werden kann. Bisher hat man bei solchen aus Kunstharz oder mit Kunstharz getränktem Textilmaterial hergestellten Formkörpern zusammengesetzte Kerne oder aus Stoff- oder Papierschläuchen mit entfernbarer Füllung bestehende Kerne oder Kerne aus einer Masse verwendet, die durch mechanische Zerkleinerung oder Herausschmelzen entfernbar sind.The invention seeks to solve the task ztt to create a core, in the production of moldings from plastic hardening mass, such. B. synthetic resin, can also be used in the Fäl s for geometric reasons of the molded body cannot be withdrawn from the core. So far one has with those made of synthetic resin or with synthetic resin impregnated textile material produced molded bodies composed Cores or fabric or paper tubes with removable filling Cores or kernels from a mass used by mechanical crushing or melt-out are removable.

Die Erfindung besteht nun darin, daß der Kern aus schraubenförmig verlaufenden, dicht nebeneinanderliegenden Drahtwindungen besteht, also die Form eines Drahtspiralschlauches besitzt.The invention consists in that the core is made of helical shape running, closely spaced wire windings consists, so the shape a wire spiral hose.

Diese Drahtschraube ist itn Gegensatz zu den bisher bekannten Kernen besonders gut verwendbar als Kern bei der Herstellung von aus Kunstharz bestehenden Formkörpern, die aus geometrischen Gründen nicht vom Kern abgezogen werden können. Der Spiralschlauch widersteht nämlich ohne weiteres der erheblichen radial nach innen gerichteten Schrumpfung_ttnd dem Bindüngsdrück- der hunstharzwand und behält seine kreisrunde Form- @äüch - dänn bei, wenn die -Schraubenachse in die verlangte gewundene Achse des späteren Kunstharzrohres gebracht wird. Ferner ist die Drahtschraube selbst so steif, claß eine Verkittung durch Überziehen mit Lack und anderen von der Härtungshitze zerstörbaren Stoffen nicht nötig ist.This wire screw is in contrast to the previously known cores particularly useful as a core in the manufacture of synthetic resin Moldings that cannot be removed from the core for geometric reasons. The spiral hose withstands the considerable radially inwardly directed shrinkage_ttnd the bond pressure of the resin wall and retains its circular shape- @ äüch - danish when the screw axis in the demanded winding axis of the later synthetic resin pipe is brought. Further is the wire screw even so stiff that a putty by covering with varnish and other things removes it the hardening heat of destructible substances is not necessary.

Die Steifigkeit der Drahtschraube hält auch beim Biegen der Achse die einzelnen Windungen am inneren Radius so stark zusammen, daß es eine leichte Arbeit wird, die Schraube dann mit den mit Kunstharz getränkten Asbestfäden zu belegen und zu bewickeln. Dabei ist die Oberfläche der Drahtschraube so glatt und ganz ohne Poren, daß die mit Kunstharz getränkte Umhüllung weder in sie eindringen kann noch erheblich an ihr kleben bleibt. Die Drahtschraube ist außerdem so fest und steif, daß sie sich mit Sicherheit ohne Abreißen auch aus dem größten und längsten Rohr nach dein Erhärten gut herausziehen lält. Es ist daher möglich, erheblich große und lange Rohre mit Ililfe des Kernes gemäß der Erfindung herzustellen.The rigidity of the wire screw holds even when the axle is bent the individual turns on the inner radius so tightly together that it is a light one The work is then to cover the screw with the asbestos threads soaked with synthetic resin and wrap. The surface of the wire screw is so smooth and completely without Pores so that the synthetic resin-impregnated envelope can neither penetrate into them nor sticks to it considerably. The wire screw is also so strong and stiff that they can be safely removed from the largest and longest pipe without tearing off after it has hardened, pull it out well. It is therefore possible to be considerably large and to manufacture long tubes with the aid of the core according to the invention.

Die Drahtschraube wird dadurch aus dein ferti-een Formkörper herausgebracht, daß der Drahtanfang auf einen kleineren Durchmesser `zusammengedreht und dann herausgezogen wird. Dabei gibt der Draht nur durch seine Elastizität caach und verbiegt sieh bleibend nicht. Infolgedessen kann dieselbe Drahtschraube viele Male verwendet werden.The wire screw is thereby brought out of your finished molded body, that the beginning of the wire is twisted to a smaller diameter and then pulled out will. The wire only gives caach due to its elasticity and bends permanently not. As a result, the same wire screw can be used many times.

Iin Gegensatz zu einer Bandwicklung können heim Biegen in irgendeine Raumform keine größeren Zwischenräume zwischen den einzelnen Windungen auftreten, weil sich die Vergrößerung auf der Außenseite der Drahtschraube nicht nur gleichmäßig, sondern auch auf eine erheblich größere Zahl von Windungen pro Längeneinheit verteilt.In contrast to a tape winding, you can bend in any Spatial shape there are no larger gaps between the individual turns, because the enlargement on the outside of the wire screw is not only evenly, but also distributed over a considerably larger number of turns per unit of length.

Die Zeichnung veranschaulicht den Drahtschrauhenkern gemäß der Erfindung und seine Verwendung bei der Herstellung von Rohren, und zwar zeigt Fig. i einen Längsschnitt durch den Drahtkern nach Aufbringen der zur Herstellung des Formkörpers verwendeten Masse; Fig.2 ist ein Querschnitt auf der Linie II-II der Fig.i.The drawing illustrates the wire screw core according to the invention and its use in the manufacture of pipes, namely Fig. 1 shows a Longitudinal section through the wire core after the application for the production of the shaped body used mass; Fig.2 is a cross section on the line II-II of Fig.i.

Fig. 3 zeigt' das fertige Formstück nach Krümmung in die gewünschte Form.Fig. 3 shows' the finished fitting after curving into the desired Shape.

Zur Herstellung eines Rohres, welches eine beliebig gekrümmte Form haben soll, wird erfindungsgemäß ein aus schraubenförmig--gewickeltem Draht bestehender __ Spiralschlauch a. benützt, dessen-Außendurchmesser und Umrißform dem Innendurchmesser und der Umrißforin der Innenwand des Rohres oder sonstigen Formkörpers entspricht. Han-Jelltes sich uin ein zylindrisches Rohr, so erfolgt die Herstellung des aus Draht bestehenden Schlauches a durch Aufwickeln auf einen schwach konischen Dorn. Es muß dafür gesorgt werden, daß die Windungen dicht heieinanderliegen. Je dünner der verwendete Draht ist, desto glatter wird die Außenfläche des Spiralschlauchkernes a. In den Kern ;vird zweckmäßig vor dein Aufbringen des Textilmaterials ein Dorn b aus Holz oder ähnlichem Baustoff eingeschoen, der eckigen, insbesondere quadratischen' (Querschnitt hat (Fig. 2). Infolge dieser. Form läßt sich der Dorn leicht wieder aus dem Kern herausziehen.For the production of a tube, which can be of any curved shape is supposed to have, according to the invention, a wire consisting of a helically wound wire is used __ spiral hose a. used, whose outer diameter and outline shape the inner diameter and the contour shape corresponds to the inner wall of the pipe or other shaped body. Han-Jelltes himself uin a cylindrical tube, so the manufacture of the takes place Wire existing hose a by winding it onto a slightly conical mandrel. It must be ensured that the turns are close together. The thinner the wire used, the smoother the outer surface of the spiral tube core will be a. In the core; a mandrel is expediently placed before the textile material is applied b made of wood or similar building material, the angular, especially square ' (Cross-section has (Fig. 2). As a result of this. Shape the mandrel can easily be again pull out of the core.

Auf den gestreckten Kern wird nun gemäß Fig. i zuerst eine Lage von axial laufenden, mit Kunstharz (Phenolformalclehydkondensationsprodukt) getränkten Fäden, Schnüren oder Bändern aus Faserstoffen, insbesondere aus Asbest aufgelegt. Auf diese Schicht wird dann eine zweite Schicht gleichen oder ähnlichen, ebenfalls mit Kunstharzinasse getränkten Textilmaterials, z. B. Fäden d, aufgewickelt. Die Aufwickelung dieser Schicht erfolgt in solcher Stärke und so, daß das Formstück die gewünschte äußere Form erhält.According to FIG. I, a layer of axially running, impregnated with synthetic resin (phenol formal hydrogen condensation product) Threads, cords or ribbons made from fibrous materials, in particular made from asbestos. A second layer, the same or a similar one, is then placed on top of this layer textile material impregnated with synthetic resin, e.g. B. threads d wound. the This layer is wound up to such a degree and strength that the molding receives the desired external shape.

I,Tachdem das Textilmaterial in der geschilderten Weise auf den Drahtkern aufgebracht worden ist, wird Gier Holzdorn b herausgezogen, und es 'wird nunmehr das Formstück mitsamt dem Spiralschlauchkern in die gewünschte Form gebogen. In dieser Lage wird der Formkörper fixiert, und es erfolgt dann das Härten der Kunstharzmasse in irgendeiner Weise.I, Tachdem the textile material in the manner described on the wire core has been applied, greed wooden thorn b is pulled out, and it is now the fitting together with the spiral hose core is bent into the desired shape. In The molded body is fixed in this position, and the synthetic resin compound is then hardened in some way.

Nach dem Erhärten wird die Drahtschraube an einem Ende auf einen kleineren Durchmesser zusammengedreht und dann durch Herausziehen äbgewickelt. Auf diese einfache Weise läßt sich der Kern selbst aus solchen Formstücken entfernen, die mehrfach gekrümmt sind.Once hardened, the wire screw is turned onto a smaller one on one end Twisted together diameter and then unwound by pulling it out. On this simple one Way, the core itself can be removed from such molded pieces, which are repeated several times are curved.

Claims (1)

PATENTANSPRUCH: Kern zur. Herstellung von beliebig gekrümmten Rohren und anderen Formstücken, insbesondere aus mit einer säurebeständigen, erhärtenden Masse getränktem Textilmaterial, dadurch gekennzeichnet, daß der Kern aus schraubenförmig verlaufenden, dicht neheneinanderliegenden Drahtwindungen besteht.PATENT CLAIM: Core for. Manufacture of pipes with any curvature and other moldings, especially made with an acid-resistant, hardening Mass impregnated textile material, characterized in that the core is made of helical running, closely spaced wire turns.
DEE40893D 1931-03-25 1931-03-25 Core for the production of any curved pipes and other fittings Expired DE556500C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE40893D DE556500C (en) 1931-03-25 1931-03-25 Core for the production of any curved pipes and other fittings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE40893D DE556500C (en) 1931-03-25 1931-03-25 Core for the production of any curved pipes and other fittings

Publications (1)

Publication Number Publication Date
DE556500C true DE556500C (en) 1932-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEE40893D Expired DE556500C (en) 1931-03-25 1931-03-25 Core for the production of any curved pipes and other fittings

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Country Link
DE (1) DE556500C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012002841A1 (en) * 2012-02-11 2013-08-14 Daimler Ag Method for manufacturing curved fiber reinforced plastic pipe for use as cooling water pipe for motor car, involves impregnating helical spring with curable resin matrix, and curing resin matrix to form pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012002841A1 (en) * 2012-02-11 2013-08-14 Daimler Ag Method for manufacturing curved fiber reinforced plastic pipe for use as cooling water pipe for motor car, involves impregnating helical spring with curable resin matrix, and curing resin matrix to form pipe

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