DE1208872B - Device for the continuous production of pipes made of thermoplastics - Google Patents

Device for the continuous production of pipes made of thermoplastics

Info

Publication number
DE1208872B
DE1208872B DEW32819A DEW0032819A DE1208872B DE 1208872 B DE1208872 B DE 1208872B DE W32819 A DEW32819 A DE W32819A DE W0032819 A DEW0032819 A DE W0032819A DE 1208872 B DE1208872 B DE 1208872B
Authority
DE
Germany
Prior art keywords
guide tube
thermoplastics
continuous production
conveyor belts
pipes
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
DEW32819A
Other languages
German (de)
Inventor
Karl-Heinz Walter
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEW32819A priority Critical patent/DE1208872B/en
Publication of DE1208872B publication Critical patent/DE1208872B/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
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
    • B29C41/26—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on a rotating drum
    • B29C41/265—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on a rotating drum on the inside of the drum
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Description

Vorrichtung zur kontinuierlichen Herstellung von Rohren aus thermoplastischen Kunststoffen Die Erfindung betrifft eine Anlage zur kontinuierlichen Herstellung von Rohren aus thermoplastischen Kunststoffen, insbesondere mit gewebe- oder geflechtartigen Einlagen.Device for the continuous production of pipes made of thermoplastic Plastics The invention relates to a plant for continuous production of pipes made of thermoplastics, especially those made of woven or braided materials Insoles.

Es sind bereits Anlagen zur Herstellung von Kunststoffrohren bekannt. Bei ihnen muß das aus der Extruderdüse heraustretende Rohr durch Druckluft gestützt werden, da es noch weich und plastisch ist. Systems for the production of plastic pipes are already known. With them, the pipe emerging from the extruder nozzle must be supported by compressed air because it is still soft and plastic.

Es können hierbei ober nur Rohre bis zu bestimmten Rohrdurchmessern hergestellt werden.In this case, only pipes up to certain pipe diameters can be used getting produced.

Es sind auch bereits Anlagen zur Herstellung von Kunststoffrohren bekannt, bei denen zur Erhöhung der Festigkeit ein Gewebe oder Geflecht in das Kunststoffrohr eingebettet wird. There are already plants for the production of plastic pipes known, in which a fabric or braid in the plastic pipe to increase the strength is embedded.

Bei anderen Anlagen wird das erzeugte Rohr mit Hilfe der Zentrifugalkraft verdichtet und entlüftet. In other systems, the pipe produced is made with the help of centrifugal force compressed and vented.

Bei diesen Anlagen können aber die Rohre nicht kontinuierlich hergestellt werden.In these systems, however, the pipes cannot be manufactured continuously will.

Der Erfindung liegt also hiermit die Aufgabe zugrunde, kontinuierlich Rohre bis zu den größten Durchmessern (z. B. für Behälter usw.) aus thermoplastischen Kunststoffen herzustellen, deren Werkstoff verdichtet und entlüftet ist. Werden Gewebe oder Geflechte zur Ehöhung der Festigkeitseigenschaften verwendet, so sollen diese vom thermoplastischen Kunststoff vollständig eingehüllt sein. The invention is therefore based on the object, continuously Pipes up to the largest diameters (e.g. for containers, etc.) made of thermoplastic Manufacture plastics whose material is compressed and vented. Will Fabrics or braids used to increase the strength properties should be used this be completely encased by the thermoplastic material.

Die Erfindung besteht also in folgendem: In dem Führungsrohr 1 befinden sich zwei oder mehr Transportbänder 2, die sich in Richtung der Rohrachse von einem Ende des Rohres zum anderen bewegen. The invention thus consists in the following: Located in the guide tube 1 two or more conveyor belts 2, which extend in the direction of the pipe axis from one Move the end of the pipe to the other.

Sie stoßen an ihrem seitlichen Rand so aneinander, daß die ganze Innenwand des Rohres von ihnen bedeckt wird. Damit sie sich nicht übereinander verschieben, befinden sich an der Innenwand des Führungsrohres entsprechende Nuten und an der Außenwand der Transportbänder Ansätze. Sie sind außerdem so gestaltet, daß sie sich an die Innenwand des Führungsrohres anschmiegen. Sie sind als endlose Bänder gearbeitet und laufen außerhalb des Führungsrohres zurück. Dabei werden sie über ein Rollensystem 3 geführt und angetrieben. Dlas Führungsrohr mitsamt den Transportbändern und dem Rollenksystem rotiert um die Mittelachse des Führungsrohres.They abut one another on their lateral edge so that the entire inner wall of the pipe is covered by them. So that they don't shift on top of each other, there are corresponding grooves on the inner wall of the guide tube and on the Outer wall of the conveyor belts approaches. They are also designed to be cling to the inner wall of the guide tube. They are worked as endless ribbons and run back outside the guide tube. In doing so, they are using a role system 3 guided and driven. The guide tube including the conveyor belts and the Roller steering system rotates around the central axis of the guide tube.

An dem Eingangsende des Führungsrohres wird kontinuierlich thermoplastisches Material auf die Transportbänder gebracht und dort erwärmt, so daß es plastifiziert. Man kann es rauch im plastischen Zu- stand aus einer Extruderdüse 4 auf die Transportbänder bringen. At the inlet end of the guide tube, thermoplastic becomes continuously Material brought onto the conveyor belts and heated there so that it plasticizes. You can smoke it in a plastic stood from an extruder nozzle 4 onto the conveyor belts bring.

Bei der Rotation und gleichzeitiger Fortbewegung der Transportbänder in Richtung Achse des Führungsrohres fließt das plastifizierte thermoplastische Material ineinander. During the rotation and simultaneous movement of the conveyor belts The plasticized thermoplastic flows in the direction of the axis of the guide tube Material in each other.

Durch die Zentrifugalkraft wird das Material an die Wandung des Führungsrohres, also auf die Transportbänder gedrückt, dabei blasenfrei entlüftet und verdichtet zu einer homogenen Masse. Die Festigkeitseigenschaften sind daher besser als bei den Kunststoffrohren, die ohne Anwendung der Zentrifugalkraft hergestellt werden. The centrifugal force causes the material to stick to the wall of the guide tube, So pressed onto the conveyor belts, vented and compressed without bubbles to a homogeneous mass. The strength properties are therefore better than with the plastic pipes, which are manufactured without the use of centrifugal force.

Während des Durchlaufens durch das Führungsrohr wird das Material von außen gekühlt, so daß es - am Ende des Führungsrohres angekommen -zu einem Kunststoffrohr erstarrt und fest geworden ist. Am hinteren Ende, außerhalb des Führungsrohres, lösen sich die Transportbänder von dem nun fertigen Kunststoffrohr 5 und laufen zurück. Das Kunststoffrohr selbst bewegt sich weiter fort und wird vorn beispielsweise durch eine Säge abgetrennt. As it passes through the guide tube, the material becomes cooled from the outside, so that it - arrived at the end of the guide tube - to a plastic tube has frozen and solidified. At the rear end, outside the guide tube, the conveyor belts detach from the now finished plastic pipe 5 and run return. The plastic pipe itself continues to move and is in front, for example severed by a saw.

Claims (1)

Patentanspruch: Vorrichtung zur kontinuierlichen Herstellung von Rohren aus thermoplastischen Kunststoffen, dadurch gekennzeichnet, daß in einem um die Rohrachse rotierenden Führungsrohr (1) sich in Richtung Rohrachse Transportbänder (2) bewegen, die über ein Rollensystem (3) geführt und angetrieben werden und auf die thermoplastisches Material aufgebracht wird. Claim: Device for the continuous production of Tubes made of thermoplastics, characterized in that in one The guide tube (1) rotating around the tube axis moves in the direction of the tube axis with conveyor belts (2) move, which are guided and driven via a roller system (3) and on the thermoplastic material is applied. In Betracht gezogene Druckschriften: Schweizerische Patentschrift Nr. 296748; USA.-Patentschrift Nr. 2614 058. Publications considered: Swiss patent specification No. 296748; U.S. Patent No. 2614 058.
DEW32819A 1962-08-22 1962-08-22 Device for the continuous production of pipes made of thermoplastics Pending DE1208872B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW32819A DE1208872B (en) 1962-08-22 1962-08-22 Device for the continuous production of pipes made of thermoplastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW32819A DE1208872B (en) 1962-08-22 1962-08-22 Device for the continuous production of pipes made of thermoplastics

Publications (1)

Publication Number Publication Date
DE1208872B true DE1208872B (en) 1966-01-13

Family

ID=7600148

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW32819A Pending DE1208872B (en) 1962-08-22 1962-08-22 Device for the continuous production of pipes made of thermoplastics

Country Status (1)

Country Link
DE (1) DE1208872B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614058A (en) * 1948-06-03 1952-10-14 Richard J Francis Methods of forming reinforced hollow plastic articles
CH296748A (en) * 1951-04-12 1954-02-28 Ciba Geigy Process for the production of a body with a rotationally symmetrical cavity from a synthetic resin mass which can be hardened by means of heat and hollow bodies obtained by the process.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614058A (en) * 1948-06-03 1952-10-14 Richard J Francis Methods of forming reinforced hollow plastic articles
CH296748A (en) * 1951-04-12 1954-02-28 Ciba Geigy Process for the production of a body with a rotationally symmetrical cavity from a synthetic resin mass which can be hardened by means of heat and hollow bodies obtained by the process.

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