DE896972C - Electrically heated rotating roller - Google Patents

Electrically heated rotating roller

Info

Publication number
DE896972C
DE896972C DEL10734A DEL0010734A DE896972C DE 896972 C DE896972 C DE 896972C DE L10734 A DEL10734 A DE L10734A DE L0010734 A DEL0010734 A DE L0010734A DE 896972 C DE896972 C DE 896972C
Authority
DE
Germany
Prior art keywords
roller
electrically heated
rotating roller
heated rotating
elements
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
DEL10734A
Other languages
German (de)
Inventor
Torsten Guenther
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.)
FRITZ LUNDBERGS SKINNBEREDERI
Original Assignee
FRITZ LUNDBERGS SKINNBEREDERI
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 FRITZ LUNDBERGS SKINNBEREDERI filed Critical FRITZ LUNDBERGS SKINNBEREDERI
Application granted granted Critical
Publication of DE896972C publication Critical patent/DE896972C/en
Expired 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
    • H05B3/00Ohmic-resistance heating
    • H05B3/0095Heating devices in the form of rollers

Landscapes

  • Control Of Resistance Heating (AREA)

Description

Die Erfindung bezieht sich auf solche elektrisch beheizte,, umlaufende Walzen, bei denen die Heizwiderstände in längs verlaufenden Bohrungen der Walze angeordnet sind.The invention relates to such electrically heated, circulating Rollers, in which the heating resistors in longitudinal bores of the roll are arranged.

Bei ider gebräuchlichen Vorrichtung zur elektrischen Erhitzung der Walze einer Bügelmaschine für Pelze erfolgt die Erhitzung durch gegen die Innenseite des Walzenmantels anliegende Widerstandselemente. Auf Grund der verhältnismäßig schlechten Wärmeübertragung solcher Elemente auf die Walze werden die Widerstandselemente leicht überhitzt und brennen durch. Bei einer solchen Vorrichtung ist die Erhitzungszeit für die Walze ziemlich lang, weshalb es zweckmäßiger ist, eine Walze zu verwenden, deren Heizvorrichtung aus Widerstandselementen besteht, die in längs verlaufenden Bohrungen der Walze selbst liegen. Die bereits bekannten Walzen dieser Art sind aber mit dem Nachteil behaftet, daß die Widerstandselemente in ihrer Lage fixiert sind, weshalb keine Längenänderung beim Erhitzen und Abkühlen stattfinden kann, was erfahrungsgemäß zu einer kurzen Lebensdauer solcher Elemente führt.In the common device for electrical heating of the The roller of an ironing machine for furs is heated by against the inside of the roll shell adjacent resistance elements. Due to the proportionate poor heat transfer of such elements to the roller become the resistance elements easily overheated and burn out. In such a device, the heating time is quite long for the roller, which is why it is more convenient to use a roller, whose heating device consists of resistance elements that run in longitudinal Holes in the roller itself. The already known rollers of this type are but has the disadvantage that the resistance elements are fixed in their position are, which is why no change in length can take place during heating and cooling, experience has shown that such elements have a short service life.

Die angeführten Nachteile werden durch die Erfindung vermieden, die sich auf eine Walze der angegebenen Art bezieht und dadurch gekennzeichnet ist, daß die Heizwiderstände aus durch Rohre isolierten Spiralen bestehen, die sich unter der Wirkung der Temperaturschwankungen frei ausdehnen und zusammenziehen können.The cited disadvantages are avoided by the invention refers to a roller of the specified type and is characterized by that the heating resistors consist of spirals insulated by pipes, which are located below expand and contract freely under the effect of temperature fluctuations.

Eine als Beispiel gewählteAusführungsform einer Walze gemäß der Erfindung soll im folgenden an Hand der Zeichnung beschrieben werden. IE's zeigt Fig. i eine mit Heizkörpern versehene, bereits bekannte Bügelwalze in Ansicht, Fig. z einen Querschnitt durch eine erfindungsgemäße Bügelwalze, die mit Bohrungen für Widerstandselemente versehen ist, und Fig. 3 eine Seitenansicht von in den Bohrungen anzubringenden Widerstandselementen.An exemplary embodiment of a roller according to the invention is to be described in the following with reference to the drawing. IE's shows Fig. 1 a already known ironing roller provided with heating elements in a view, FIG Cross-section through an ironing roller according to the invention, which has holes for resistance elements is provided, and Fig. 3 is a side view of to be mounted in the bores Resistance elements.

Die vorbekannte Bügelwalze gemäß Fig. i ist eine Ringwalze i, gegen deren Innenseite eine Anzahl von Heizelementen anliegt.The previously known ironing roller according to FIG. I is a ring roller i, against the inside of which rests on a number of heating elements.

Laut Fig. 2 ist die Ringwalze i gemäß der Erfindung in schon bekannter Weise mit einer Anzahl längs verlaufender Bohrungen 3 versehen. In diesen Bohrungen werden die Widerstandselemente 4, 5 nach Fdg. 3 angeordnet. Diese Elemente bestehen aus Widerstandsspiralen 4, die von Isolierrohren 5 umgeben sind und sich unter der Wirkung der vorkommenden Temperaturschwankungen frei zusammenziehen und ausdehnen können. Die Widerstandsspiralen 4 werden mit einer Stromquelle 6 verbunden, um während des Umlaufs der Walze i diese erhitzen zu können.According to FIG. 2, the ring roller i according to the invention is already known Way provided with a number of longitudinal holes 3. In these holes the resistance elements 4, 5 are arranged according to FIG. These elements exist from resistance spirals 4, which are surrounded by insulating tubes 5 and located under the The effect of the occurring temperature fluctuations contract and expand freely can. The resistance spirals 4 are connected to a power source 6 to during the rotation of the roller i to be able to heat it.

Claims (1)

PATENTANSPRUCH: Elektrisch beheizte, umlaufende Walze mit in längs verlaufenden Bohrungen der Walze angeordneten Heizwiderständen, dadurch gekennzeichnet, daß die Heizwiderstände aus durch Rohre isolierten Spiralen bestehen, die sich unter der Wirkung der Temperaturschwankungen frei ausdehnen und zusammenziehen können. PATENT CLAIM: Electrically heated, rotating roller with heating resistors arranged in longitudinal bores of the roller, characterized in that the heating resistors consist of spirals insulated by pipes, which can expand and contract freely under the effect of temperature fluctuations.
DEL10734A 1948-01-13 1951-11-14 Electrically heated rotating roller Expired DE896972C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE896972X 1948-01-13

Publications (1)

Publication Number Publication Date
DE896972C true DE896972C (en) 1953-11-16

Family

ID=20378083

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL10734A Expired DE896972C (en) 1948-01-13 1951-11-14 Electrically heated rotating roller

Country Status (1)

Country Link
DE (1) DE896972C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1038208B (en) * 1957-06-26 1958-09-04 Kleinewefers Soehne J Electrical heating device housed inside relatively thin-walled steel rollers, in particular calender rollers
EP0156790A2 (en) * 1984-03-29 1985-10-02 Lenzing Aktiengesellschaft Heated roll

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1038208B (en) * 1957-06-26 1958-09-04 Kleinewefers Soehne J Electrical heating device housed inside relatively thin-walled steel rollers, in particular calender rollers
EP0156790A2 (en) * 1984-03-29 1985-10-02 Lenzing Aktiengesellschaft Heated roll
EP0156790A3 (en) * 1984-03-29 1987-10-28 Lenzing Aktiengesellschaft Heated roll

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