DE1025095B - Device for warm stretching of synthetic threads made of thermoplastic high polymers - Google Patents

Device for warm stretching of synthetic threads made of thermoplastic high polymers

Info

Publication number
DE1025095B
DE1025095B DEP9277A DEP0009277A DE1025095B DE 1025095 B DE1025095 B DE 1025095B DE P9277 A DEP9277 A DE P9277A DE P0009277 A DEP0009277 A DE P0009277A DE 1025095 B DE1025095 B DE 1025095B
Authority
DE
Germany
Prior art keywords
stretching
cylinder
high polymers
synthetic threads
thermoplastic high
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
DEP9277A
Other languages
German (de)
Inventor
Josef Pfenningsberg
Hans Richter
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.)
Josef Pfenningsberg & Co
Original Assignee
Josef Pfenningsberg & Co
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 Josef Pfenningsberg & Co filed Critical Josef Pfenningsberg & Co
Publication of DE1025095B publication Critical patent/DE1025095B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • H05B6/10Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/14Tools, e.g. nozzles, rollers, calenders
    • H05B6/145Heated rollers
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/224Selection or control of the temperature during stretching
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02JFINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225Mechanical characteristics of stretching apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

DEUTSCHESGERMAN

Gegenstand des Patents 960 578 ist unter anderem eine Vorrichtung zum Warmstrecken von synthetischen Fäden aus thermoplastischen Hochpolymeren unter Anwendung von hohen Streck- bzw. Fadengeschwindigkeiten, die sich dadurch kennzeichnet, daß der erste Zylinder des Streckwerkes von innen oder außen geheizt ist und der zweite Zylinder des Streckwerkes konisch oder stufenförmig ausgebildet ist. Die Beheizung des ersten Streckzylinders erfolgt dabei mittels eines im Inneren des Zylinders angeordneten feststehenden oder mitumlaufenden Heizkörpers oder, für das Strecken von Fäden oder Fadenbündeln großer Stärke, zusätzlich durch einen den ersten Zylinder des Streckwerkes in einem gewissen Abstand umschließenden Heizkörper. Bei der verhältnismäßig großen Anzahl (150 bis 300) von zu beheizenden Zylindern an einer Maschine sowie infolge der zu erreichenden Temperatur (110 bis 200°) ergibt sich bei einer elektrischen Widerstandsheizung ein erheblicher Aufwand an elektrischer Energie für die ganze Maschine. Zudem ist die Unterbringung der erforderlichen Widerstandsheizungsaggregate innerhalb der Streckzylinder mit erheblichen Schwierigkeiten verbunden.The subject of patent 960 578 is, inter alia, a device for hot stretching synthetic Threads made of thermoplastic high polymers using high stretching or thread speeds, which is characterized in that the first cylinder of the drafting system from the inside or is externally heated and the second cylinder of the drafting system is conical or step-shaped. the The first stretching cylinder is heated by means of one arranged in the interior of the cylinder fixed or rotating radiators or, for stretching threads or bundles of large threads Starch, in addition, by a cylinder that encloses the first cylinder of the drafting system at a certain distance Radiator. With the relatively large number (150 to 300) of cylinders to be heated a machine and as a result of the temperature to be reached (110 to 200 °) results in an electrical one Resistance heating means a considerable amount of electrical energy for the entire machine. In addition is the accommodation of the necessary resistance heating units within the stretching cylinder associated considerable difficulties.

Eine beachtenswerte Einsparung an elektrischer Energie sowie eine bedeutende Erleichterung des Einbaues der Heizaggregate läßt sich jedoch erreichen, wenn gemäß der vorliegenden Erfindung an Stelle der bekannten elektrischen Widerstandsheizung eine induktive Heizvorrichtung zur Anwendung gelangt, bei der der Mantel des ersten Zylinders des Streckwerkes selbst den Kurzschlußleiter und somit die Sekundärwicklung für die induzierte elektrische Energie bildet. Hierdurch gelangt das von der Induktionsspule erzeugte elektrische Kraftfeld in vollem Umfang zur Einwirkung auf den die Sekundärwicklung bildenden Streckzylindermantel. Diese Ausbildung des Heizaggregates erleichtert auch seine Unterbringung im Innern des zu beheizenden Streckzylinders insofern, als die Induktionsspule nur einen Teil des Streckzylinderhohlraumes einzunehmen braucht und sich ohne Schwierigkeiten an jeder beliebigen Stelle im Innern des Streckzylinders unterbringen läßt.A notable saving in electrical energy as well as a significant simplification of the installation the heating units can, however, be achieved if, according to the present invention, instead of the known electrical resistance heating an inductive heating device is used in the jacket of the first cylinder of the drafting system itself is the short-circuit conductor and thus the secondary winding for the induced electrical energy. This gets what is generated by the induction coil electric force field in full to act on the secondary winding forming Stretching cylinder jacket. This design of the heating unit also facilitates its placement in the Inside the stretching cylinder to be heated insofar as the induction coil is only part of the stretching cylinder cavity needs to take and can be accommodated at any point inside the stretching cylinder without difficulty.

Eine vorteilhafte Steigerung des Wärmewirkungsgrades läßt sich ferner erzielen, wenn der Zylindermantel ganz oder zum Teil aus elektrisch leitendem Material, die eine Abschlußfläche des Zylinderhohlraumes dagegen aus nichtleitendem Werkstoff ausgeführt sind.An advantageous increase in the thermal efficiency can also be achieved if the cylinder jacket wholly or partly made of electrically conductive material, which forms an end surface of the cylinder cavity however, are made of non-conductive material.

Die Anwendung induktiver Heizmittel ist an sich bekannt. Sie hat z. B. zum Erwärmen der Spinnschmelze aus Kunststoffen Anwendung gefunden, indem die Induktionsspule außen um die Schmelzkammer der Spinnvorrichtung herumgelegt worden ist, so daß die Erwärmung der Schmelzkammer-Vorrichtimg zum WarmstreckenThe use of inductive heating means is known per se. She has z. B. for heating the spinning melt Made of plastics found application by placing the induction coil around the outside of the melting chamber the spinning device has been laid around, so that the heating of the melting chamber device for warm stretching

von synthetischen Fäden
aus thermoplastischen Hochpolymeren
of synthetic threads
made of thermoplastic high polymers

Zusatz zum Patent 960 578Addendum to patent 960 578

Anmelder:
Josef Pfenningsberg & Co., M. Gladbach
Applicant:
Josef Pfenningsberg & Co., M. Gladbach

Josef Pfenningsberg, M. Gladbach,
und Hans Richter, Furth im Wald,
sind als Erfinder genannt worden
Josef Pfenningsberg, M. Gladbach,
and Hans Richter, Furth im Wald,
have been named as inventors

wandungen durch die in ihr erzeugten Induktions- und Wirbelströme erfolgt. Hierbei gelangt aber nur ein verhältnismäßig geringer Teil des von der Induktionsspule erzeugten Kraftfeldes auf die im Innern der Spule gelegenen Schmelzkammerwände zur Einwirkung, so daß nur mit einem geringen elektrischen Wirkungsgrad zu rechnen ist. Demgegenüber wird bei einer Unterbringung der Induktionsspule im Innern des zu beheizenden Streckzylinders gemäß vorliegender Erfindung das Kraftfeld voll ausgenutzt und zur Erzeugung von Induktions- und Wirbelströmen unmittelbar in dem zu beheizenden Teil, nämlich in dem die Sekundärwicklung des elektrischen Systems bildenden Streckzylindermantel selbst herangezogen, so daß dieser mit einem Mindestmaß an Aufwand von elektrischer Energie auf die erforderliche Temperatur erwärmt wird.walling takes place through the induction and eddy currents generated in it. But only one comes here relatively small part of the force field generated by the induction coil on the inside of the Coil located melting chamber walls for action, so that only with a low electrical Efficiency is to be expected. In contrast, if the induction coil is housed inside of the stretching cylinder to be heated according to the present invention, the force field is fully exploited and for Generation of induction and eddy currents directly in the part to be heated, namely in the the stretching cylinder jacket forming the secondary winding of the electrical system is used, so that this with a minimum of electrical energy to the required temperature is heated.

Claims (3)

Patentansprüche:Patent claims: 1. Vorrichtung zum Warmstrecken von synthetischen Fäden aus thermoplastischen Hochpolymeren, nach Patent 960 578, dadurch gekennzeichnet, daß der erste Zylinder des Streckwerkes dadurch induktiv beheizt wird, daß sein Mantel als Sekundärwicklung für die induzierte elektrische Energie dient.1. Device for warm stretching of synthetic threads made of thermoplastic high polymers, according to patent 960 578, characterized in that the first cylinder of the drafting system thereby is inductively heated that his jacket as a secondary winding for the induced electrical Energy serves. 709 907/329709 907/329 3 43 4 2. Vorrichtung nach Anspruch 1, dadurch ge- eine Abschlußfläche des Streckzylinderhohlraumes kennzeichnet, daß die Induktionsspule einen Teil dagegen aus nichtleitendem Werkstoff bestehen, des Streckzylinderhohlraumes einnimmt. 2. Apparatus according to claim 1, characterized in an end surface of the stretching cylinder cavity indicates that part of the induction coil is made of non-conductive material, occupies the stretching cylinder cavity. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch In Betracht gezogene Druckschriften: gekennzeichnet, daß der Mantel des Streckzylinders 5 Deutsche Patentschrift Nr. 834 420;3. Device according to Claim 1 or 2, characterized in that the documents considered: characterized in that the jacket of the stretching cylinder 5 German Patent No. 834 420; ganz oder zum Teil aus elektrisch leitendem, die USA.-Patentschrift Nr. 2 455 173.made wholly or in part of electrically conductive, U.S. Patent No. 2,455,173. © 709 907/329 2. 58© 709 907/329 2. 58
DEP9277A 1952-01-04 1953-02-26 Device for warm stretching of synthetic threads made of thermoplastic high polymers Pending DE1025095B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE320708X 1952-01-04

Publications (1)

Publication Number Publication Date
DE1025095B true DE1025095B (en) 1958-02-27

Family

ID=6156850

Family Applications (2)

Application Number Title Priority Date Filing Date
DEP7820A Pending DE1033370B (en) 1952-01-04 1952-02-14 Device for stretching synthetic threads made of thermoplastic high polymers
DEP9277A Pending DE1025095B (en) 1952-01-04 1953-02-26 Device for warm stretching of synthetic threads made of thermoplastic high polymers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEP7820A Pending DE1033370B (en) 1952-01-04 1952-02-14 Device for stretching synthetic threads made of thermoplastic high polymers

Country Status (4)

Country Link
CH (1) CH320708A (en)
DE (2) DE1033370B (en)
FR (1) FR1069409A (en)
GB (1) GB741876A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083486B (en) * 1954-08-04 1960-06-15 Karlsruhe Augsburg Iweka Winding device on winding machines, especially for synthetic thread bobbin spinning machines
US2884679A (en) * 1955-07-06 1959-05-05 Whitin Machine Works Yarn stretching apparatus
JPS557588Y2 (en) * 1974-09-10 1980-02-20

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455173A (en) * 1946-05-25 1948-11-30 Du Pont Yarn treating apparatus
DE834420C (en) * 1942-10-21 1952-03-20 Glanzstoff Ag Method and device for spinning meltable plastics

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE521566C (en) * 1927-08-10 1931-03-23 Scient Fa Machine for spinning rayon with a frictional bobbin drive device
FR662600A (en) * 1928-10-20 1929-08-08 Textiles Artificiels Ing A Mau Machine for spinning artificial silk with automatic reel change
DE554811C (en) * 1929-02-08 1932-07-14 Siemens Schuckertwerke Akt Ges Artificial silk spinning machine with several switchable spools per spinning position
DE527376C (en) * 1929-10-26 1931-06-17 Paul Alfred Nikles Bobbin spinning machine for rayon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE834420C (en) * 1942-10-21 1952-03-20 Glanzstoff Ag Method and device for spinning meltable plastics
US2455173A (en) * 1946-05-25 1948-11-30 Du Pont Yarn treating apparatus

Also Published As

Publication number Publication date
DE1033370B (en) 1958-07-03
GB741876A (en) 1955-12-14
CH320708A (en) 1957-04-15
FR1069409A (en) 1954-07-07

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