EP0001790A1 - Wire tension device, in particular for winding machines - Google Patents

Wire tension device, in particular for winding machines Download PDF

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Publication number
EP0001790A1
EP0001790A1 EP78101186A EP78101186A EP0001790A1 EP 0001790 A1 EP0001790 A1 EP 0001790A1 EP 78101186 A EP78101186 A EP 78101186A EP 78101186 A EP78101186 A EP 78101186A EP 0001790 A1 EP0001790 A1 EP 0001790A1
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EP
European Patent Office
Prior art keywords
wire
brake
nut
cylinder
plate
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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.)
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EP78101186A
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German (de)
French (fr)
Inventor
Reinhold Seipp
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Seipp & Co KG GmbH
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Seipp & Co KG GmbH
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Publication of EP0001790A1 publication Critical patent/EP0001790A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material

Definitions

  • the invention relates to a wire brake and tensioning device, in particular for wire drains, which includes the wire to be braked and tensioned.
  • Wire drains of the type mentioned above are used in conjunction with winding machines and essentially have the task of maintaining a constant tension of the wire from the wire reel to be unwound to the spool on the winding machine. Furthermore, these devices are intended to prevent the wire from being unwound further from the coil in an uncontrolled manner due to the moment of inertia of the rotating parts when the wire tension decreases.
  • the pretension given to the wire by the tensioning device must not exceed a certain value, which must be matched to the respective wire thickness, in order to ensure that there is no stretching of the wire which can lead to cracks in the insulating layer.
  • a certain value which must be matched to the respective wire thickness
  • the most commonly processed wire thicknesses of approx. 0.05 'to 2.0 mm require maximum tension of 24 to 15 kg.
  • this area cannot be covered, so that for the processing of wires from 0.04 to 0.45 mm, for wires from 0.17 to 0.90 mm and for those from 0.25 to 2.0 mm separate unwinding and braking and tensioning devices must be used.
  • the invention is based on the object of designing a wire brake and tensioning device of the type mentioned at the outset in such a way that it can be used for all practically occurring wire diameters and is also inexpensive to manufacture.
  • the device has at least one flexible brake band which is arranged essentially parallel to the wire and the ends of which are fastened in holders of the device, at least one of which is displaceable in the longitudinal direction of the wire and rotatable about the latter.
  • the brake or tension band can e.g. consist of textile or plastic fabrics.
  • the brake band is wound and tensioned around the wire by rotating and moving one of the brackets.
  • the braking effect transferred to the wire is adjusted depending on the number of times the wire is wrapped and the tension of the belt.
  • a device according to the invention can be used equally for round wires as well as for those with square, rectangular or polygonal cross sections.
  • the device consists of a cylinder, the one opening tion is closed by a plate provided with a centrally arranged hole and in the other opening a nut provided with a centrally arranged hole is screwed, wherein in the plate and in the mother several symmetrical to the wire fastening points are provided for the brake bands.
  • Two brake bands are advantageously used, which are fastened in the form of an endless band in the device.
  • the wire brake and tensioning device 1 shown in the figures consists of a cylinder 2, which is closed at one end by a plate 3.
  • the plate 3 is welded to the cylinder 2.
  • the other side of the cylinder 3 has an internal thread 4 and is closed with a nut 5.
  • Both the plate 3 and the nut 5 have a central bore 6 and 7, in which guide tubes 8, 9 are inserted, which are made of a soft material and are intended to prevent the insulation layer of the wire 10 from being damaged.
  • the plate 3 and also the nut 1 each have two further bores 11 and 12 through which a brake band 13 shown in broken lines is guided. Furthermore, the mother as well as the plate opposite cutouts 14 and 15, Brake band attached is.
  • the fastening and guiding of the brake band can be seen in FIGS. 1 and 2.
  • To insert the brake band it is first clamped behind the plate 3 and then pulled through the cutouts 14 and inserted through the bores 11 into the interior of the device 1 and then through the bores 12 to the outside and then through the cutouts 14 behind the nut 5 connected with each other.
  • the brake band is thus self-contained.
  • the cylinder 1 also has a fastening bolt 16 for its fastening e.g. on a wire drain. Furthermore, two viewing windows 17 are cut out in the cylinder 2, which facilitate the threading of the wire 10 into the device 1.
  • the device according to the invention is suitable for both the smallest and the largest occurring wire diameters. Furthermore, the braking force is continuously adjustable over a wide range.
  • the device according to the invention is characterized by an uncomplicated structure and, compared to the known braking and tensioning devices, is extremely inexpensive to manufacture.

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  • Tension Adjustment In Filamentary Materials (AREA)

Abstract

In this device, the wire to be braked or tensioned is grasped by the device. So that the device can be employed for virtually any wire diameter, it has at least one flexible braking band (13) which is arranged essentially parallel to the wire (10) and whose ends are fastened in holders (3, 5) of the device, of which at least one (5) is arranged displaceably in the longitudinal direction of the wire (10) and rotatably about the latter. As a function of the desired tensioning or braking of the wire, the braking band is more or less often wound around the wire and more or less tautened. <IMAGE>

Description

Die Erfindung betrifft eine Drahtbrems- und Spannvorrichtung insbesondere für Drahtabläufe, die den abzubremsenden und zu spannenden Draht einschließt.The invention relates to a wire brake and tensioning device, in particular for wire drains, which includes the wire to be braked and tensioned.

Drahtabläufe der vorstehend genannten Art werden u.a. in Verbindung mit Wickelmaschinen eingesetzt und haben im wesentlichen die Aufgabe, eine konstante Spannung des Drahtes von der abzuwickelnden Drahtrolle zur Spule auf der Wickelmaschine aufrechtzuerhalten. Desweiteren sollen diese Vorrichtungen verhindern, daß beim Nachlassen des Drahtzuges der Draht infolge des Trägheitsmomentes der drehenden Teile unkontrolliert weiter von der Spule abgespult wird.Wire drains of the type mentioned above are used in conjunction with winding machines and essentially have the task of maintaining a constant tension of the wire from the wire reel to be unwound to the spool on the winding machine. Furthermore, these devices are intended to prevent the wire from being unwound further from the coil in an uncontrolled manner due to the moment of inertia of the rotating parts when the wire tension decreases.

Die durch die Spannvorrichtung dem Draht gegebene Vorspannung darf einen bestimmten Wert nicht übersteigen, der auf die jeweilige Drahtstärke abgestimmt sein muß, damit sichergestellt ist, daß keine Dehnung des Drahtes auftritt, die zu Rissen in der Isolierschicht führen kann. Bereits die am häufigsten verarbeiteten Drahtstärken von ca. 0,05 ' bis 2,0 mm verlangen maximale Drantvorspannungen von 24 g bis 15 kg. Mit herkömmlicher Brems- und Spannvorrichtungen kann dieser Bereich nicht abgedeckt werden, so daß für die Verarbeitung von Drähten von 0,04 bis 0,45 mm, für Drähte von 0,17 bis 0,90 mm und für solche von 0,25 bis 2,0 mm gesonderte Abspul- und Brems- und Spannvorrichtungen verwendet werden müssen. Es wäre zwar technisch möglich, nach den herkömmlichen Prinzipien Brems- und Spannvorrichtungen zu bauen, die den gesamten Bereich abdecken, jedoch würden derartige Vorrichtungen unverhältnismäßig teuer werden.The pretension given to the wire by the tensioning device must not exceed a certain value, which must be matched to the respective wire thickness, in order to ensure that there is no stretching of the wire which can lead to cracks in the insulating layer. Already the most commonly processed wire thicknesses of approx. 0.05 'to 2.0 mm require maximum tension of 24 to 15 kg. With conventional braking and tensioning devices this area cannot be covered, so that for the processing of wires from 0.04 to 0.45 mm, for wires from 0.17 to 0.90 mm and for those from 0.25 to 2.0 mm separate unwinding and braking and tensioning devices must be used. Although it would be technically possible to build braking and tensioning devices that cover the entire area according to the conventional principles, such devices would become disproportionately expensive.

Der Erfindung liegt die Aufgabe zugrunde, eine Drahtbrems-und Spannvorrichtung der eingangs genannten Art so auszubilden, daß diese für alle praktisch vorkommenden Drahtdurchmesser einsetzbar und zudem kostengünstig in der Herstellung ist.The invention is based on the object of designing a wire brake and tensioning device of the type mentioned at the outset in such a way that it can be used for all practically occurring wire diameters and is also inexpensive to manufacture.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Vorrichtung zumindest ein flexibles Bremsband aufweist, das im wesentlichen parallel zum Draht angeordnet ist und dessen Enden in Halterungen der Vorrichtung befestigt sind, von denen zumindest eine in Längsrichtung des Drahtes verschiebbar und um diesen drehbar angeordnet ist. Das Brems- bzw. Spannband kann z.B. aus Textil- oder aber Kunststoffgeweben bestehen. Für die Erzielung der Bremswirkung wird das Bremsband durch Drehen und Verschiebung einer der Halterungen um den Draht gewickelt und gespannt.This object is achieved in that the device has at least one flexible brake band which is arranged essentially parallel to the wire and the ends of which are fastened in holders of the device, at least one of which is displaceable in the longitudinal direction of the wire and rotatable about the latter. The brake or tension band can e.g. consist of textile or plastic fabrics. To achieve the braking effect, the brake band is wound and tensioned around the wire by rotating and moving one of the brackets.

Je nach der Anzahl der Umschlingungen des Drahtes und der Spannung des Rremsbandes wird die auf den Draht übertragene Bremswirkung eingestellt. Eine erfindungsgemäße Vorrichtung ist gleichermaßen für Runddrähte als auch für solche mit quadratischen, rechteckförmigen oder vieleckigen Querschnitten einsetzbar.The braking effect transferred to the wire is adjusted depending on the number of times the wire is wrapped and the tension of the belt. A device according to the invention can be used equally for round wires as well as for those with square, rectangular or polygonal cross sections.

Semäß einem vorteilhaften Ausführungsbeispiel der Erfindung besteht die Vorrichtung aus einem Zylinder, dessen eine Öffnung durch eine mit einer mittig angeordneten Bohrung versehenen Platte verschlossen ist und in dessen andere Öffnung eine mit einer mittig angeordneten Bohrung versehene Mutter eingeschraubt ist, wobei in der Platte und in der Mutter mehrere symmetrisch zum Draht liegende Befestigungsstellen für die Bremsbänder vorgesehen sind. Vorteilhaft werden zwei Bremsbänder verwandt, die in Form eines endlosen Bandes in der Vorrichtung befestigt werden.According to an advantageous embodiment of the invention, the device consists of a cylinder, the one opening tion is closed by a plate provided with a centrally arranged hole and in the other opening a nut provided with a centrally arranged hole is screwed, wherein in the plate and in the mother several symmetrical to the wire fastening points are provided for the brake bands. Two brake bands are advantageously used, which are fastened in the form of an endless band in the device.

Weitere vorteilhafte Ausgestaltungen der Erfindung gehen aus den Unteransprüchen hervor.Further advantageous embodiments of the invention emerge from the subclaims.

Ein Ausführungsbeispiel der Erfindung ist im folgenden anhand der Zeichnung näher beschrieben, in dieser zeigen:

  • Figur 1 einen Längsschnitt durch eine erfindungsgemäße Drahtbrems- und Spannvorrichtung, Figur 2 eine Stirnansicht der in Figur 1 gezeigten Vorrichtung und Figur 3 die erfindungsgemäße Vorrichtung im Längsschnitt mit gespanntem Bremsband.
An embodiment of the invention is described in more detail below with reference to the drawing, in which:
  • 1 shows a longitudinal section through a wire brake and tensioning device according to the invention, FIG. 2 shows an end view of the device shown in FIG. 1 and FIG. 3 shows the device according to the invention in longitudinal section with the brake band tensioned.

Die in den Figuren dargestellte Drahtbrems- und Spannvorrichtung 1 besteht aus einem Zylinder 2, der an seiner einen Stirnseite über eine Platte 3 verschlossen ist. Die Platte 3 ist mit dem Zylinder 2 verschweißt.The wire brake and tensioning device 1 shown in the figures consists of a cylinder 2, which is closed at one end by a plate 3. The plate 3 is welded to the cylinder 2.

Die andere Seite des Zylinders 3 weist ein Innengewinde 4 auf und ist mit einer Mutter 5 verschlossen. Sowohl die Platte 3 als auch die Mutter 5 haben eine zentrale Bohrung 6 bzw. 7, in die Führungsrohre 8, 9 eingesetzt sind, die aus einem weichen Material gefertigt sind und verhindern sollen, daß die Isolationsschicht des Drahtes 10 beschädigt wird.The other side of the cylinder 3 has an internal thread 4 and is closed with a nut 5. Both the plate 3 and the nut 5 have a central bore 6 and 7, in which guide tubes 8, 9 are inserted, which are made of a soft material and are intended to prevent the insulation layer of the wire 10 from being damaged.

Die Platte 3 und auch die Mutter 1 weisen je zwei weitere Bohrungen 11 und 12 auf, durch die ein strichpunktiert dargestelltes Bremsband 13 geführt ist. Desweiteren weisen die Mutter als auch die Platte

Figure imgb0001
gegenüberliegende Aussparungen 14 bzw. 15 auf,
Figure imgb0002
Bremsband eingehängt ist.The plate 3 and also the nut 1 each have two further bores 11 and 12 through which a brake band 13 shown in broken lines is guided. Furthermore, the mother as well as the plate
Figure imgb0001
opposite cutouts 14 and 15,
Figure imgb0002
Brake band attached is.

Die Befestigung und Führung des Bremsbandes ist aus Figur 1 und 2 zu entnehmen. Für das Einlegen des Bremsbandes wird dieses zunächst hinter die Platte 3 geklemmt und dann durch die Aussparungen 14 gezogen und durch die Bohrungen 11 in das Innere der Vorrichtung 1 eingeführt und anschließend durch die Bohrungen 12 nach außen und dann durch die Aussparungen 14 hinter der Mutter 5 miteinander verbunden. Das Bremsband ist somit in sich geschlossen.The fastening and guiding of the brake band can be seen in FIGS. 1 and 2. To insert the brake band, it is first clamped behind the plate 3 and then pulled through the cutouts 14 and inserted through the bores 11 into the interior of the device 1 and then through the bores 12 to the outside and then through the cutouts 14 behind the nut 5 connected with each other. The brake band is thus self-contained.

Der Zylinder 1 hat weiter einen Befestigungsbolzen 16 für seine Befestigung z.B. an einem Drahtablauf. Desweiteren sind in dem Zylinder 2 zwei Sichtfenster 17 ausgespart, die das Einfädeln des Drahtes 10 in die Vorrichtung 1 erleichtern.The cylinder 1 also has a fastening bolt 16 for its fastening e.g. on a wire drain. Furthermore, two viewing windows 17 are cut out in the cylinder 2, which facilitate the threading of the wire 10 into the device 1.

In Figur 1 sind die beiden Bremsbänder 13 in ungespanntem Zustand gezeigt, d.h. die Mutter 5 ist ganz in den Zylinder 2 eingeschraubt. In Figur 3 hingegen ist die Mutter 5 aus dem Zylinder 2 ein Stück herausgeschraubt, dies bewirkt, daß sich die beiden Bremsbänder um den Draht 10 herumlegen und gespannt werden. Je weiter die Mutter 5 aus dem Zylinder 2 herausgeschraubt wird, desto öfter schlingen sich die Bremsbänder 13 um den Draht 10 und desto mehr werden diese gespannt. Mit steigender Anzahl der Umschlingungen und der Spannung der Bremsbänder wird die Bremswirkung auf den Draht 10 gesteigert.In Figure 1 the two brake bands 13 are shown in the untensioned state, i.e. the nut 5 is screwed completely into the cylinder 2. In Figure 3, however, the nut 5 is unscrewed from the cylinder 2 a bit, this causes the two brake bands to wrap around the wire 10 and be tensioned. The further the nut 5 is screwed out of the cylinder 2, the more often the brake bands 13 wind around the wire 10 and the more they are tensioned. With an increasing number of loops and the tension of the brake bands, the braking effect on the wire 10 is increased.

Die erfindungsgemäße Vorrichtung ist sowohl für die kleinsten als auch die größten vorkommenden Drahtdurchmesser geeignet. Desweiteren ist die Bremskraft stufenlos in einem großen Bereich einstellbar. Die erfindungsgemäße Vorrichtung zeichnet sich durch einen unkomplizierten Aufbau aus und ist, verglichen mit den bekannten Brems- und Spannvorrichtungen, äußerst kostengünstig in der Herstellung.The device according to the invention is suitable for both the smallest and the largest occurring wire diameters. Furthermore, the braking force is continuously adjustable over a wide range. The device according to the invention is characterized by an uncomplicated structure and, compared to the known braking and tensioning devices, is extremely inexpensive to manufacture.

Claims (5)

1. Drahtbrems- und Spannvorrichtung, insbesondere für Drahtabläufe, die den abzubremsenden bzw. zu spannenden Draht einschließt, dadurch gekennzeichnet,
daß die Vorrichtung (1) zumindest ein flexibles Bremsband (13) aufweist, das im wesentlichen parallel zum Draht (10) angeordnet ist und dessen Enden in Halterungen (3, 5) der Vorrichtung befestigt sind, von denen zumindest eine (5) in Längsrichtung des Drahtes (10) verschiebbar und um diesen drehbar angeordnet ist.1. wire brake and tensioning device, in particular for wire drains, which includes the wire to be braked or tensioned, characterized in that
that the device (1) has at least one flexible brake band (13) which is arranged essentially parallel to the wire (10) and the ends of which are fastened in brackets (3, 5) of the device, at least one of which (5) in the longitudinal direction of the wire (10) is slidable and rotatable about it. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwei symmetrisch zum Draht (10) angeordnete Bremsbänder (13) Verwendung finden.2. Device according to claim 1, characterized in that two brake bands (13) arranged symmetrically to the wire (10) are used. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet,
daß die Vorrichtung aus einem Zylinder besteht, dessen eine Öffnung durch eine mit einer mittig angeordneten Bohrung (6) versehene Platte (3) verschlossen ist, und in dessen andere Öffnung eine mit einer mittig angeordneten Bohrung (7) versehene Mutter (5) eingeschraubt ist, und daß in der Platte (3) und in der Mutter (5) mehrere symmetrisch zum Draht liegende Befestigungsstellen (11, 12) für die Bremsbänder (13) vorgesehen sind.3. Device according to claim 1 or 2, characterized in that
that the device consists of a cylinder, one opening of which is closed by a plate (3) provided with a centrally arranged bore (6), and in the other opening a nut (5) provided with a centrally arranged bore (7) is screwed , and that in the plate (3) and in the nut (5) several symmetrical to the wire fastening points (11, 12) for the brake bands (13) are provided. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß in die Bohrungen (6, 7) der Flatte (3) und der Mutter (5) Führungsrohre (8), (9) für den Draht eingesetzt sind.4. The device according to claim 3, characterized in that in the bores (6, 7) of the plate (3) and the nut (5) guide tubes (8), (9) are used for the wire. 5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß in der Zylinderwand des Zylinders (2) zwei gegenüberliegende Sichtfenster (17) angebracht sind.5. Apparatus according to claim 3 or 4, characterized in that in the cylinder wall of the cylinder (2) two opposite viewing windows (17) are attached.
EP78101186A 1977-10-29 1978-10-20 Wire tension device, in particular for winding machines Withdrawn EP0001790A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772748745 DE2748745A1 (en) 1977-10-29 1977-10-29 WIRE BRAKING AND TENSIONING DEVICES, IN PARTICULAR FOR WIRE EXECUTIONS
DE2748745 1977-10-29

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EP0001790A1 true EP0001790A1 (en) 1979-05-16

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EP78101186A Withdrawn EP0001790A1 (en) 1977-10-29 1978-10-20 Wire tension device, in particular for winding machines

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019133496A2 (en) 2017-12-28 2019-07-04 Wisconsin Alumni Research Foundation Otoscope providing low obstruction electronic display

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919145C2 (en) * 1979-05-11 1982-11-25 Siemens AG, 1000 Berlin und 8000 München Wire brake for a winding machine for electric coils
FR2578930B1 (en) * 1985-03-18 1988-09-02 Coflexip TRANSLATION DEVICE FOR BRAKING THE SCROLLING OF AN ELONGATED ELEMENT SUCH AS A PIPE OR CABLE
DE102006034848A1 (en) * 2006-07-27 2008-01-31 Siemens Ag Cord brake i.e. safety belt brake, for motor vehicle, has operating unit standing in active connection with bearing unit such that bearing units are movable relative to each other and brake cords come into frictional contact with brake pad

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099419A (en) * 1961-12-19 1963-07-30 Phelps Dodge Copper Prod Magnet wire tensioning device
US3291417A (en) * 1964-03-05 1966-12-13 Lincoln Tool And Mfg Co Wire tension device
DE1564959A1 (en) * 1966-12-29 1970-04-09 Telefunken Patent Device for generating a constant wire tension, especially for winding deflection coils for television receivers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099419A (en) * 1961-12-19 1963-07-30 Phelps Dodge Copper Prod Magnet wire tensioning device
US3291417A (en) * 1964-03-05 1966-12-13 Lincoln Tool And Mfg Co Wire tension device
DE1564959A1 (en) * 1966-12-29 1970-04-09 Telefunken Patent Device for generating a constant wire tension, especially for winding deflection coils for television receivers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019133496A2 (en) 2017-12-28 2019-07-04 Wisconsin Alumni Research Foundation Otoscope providing low obstruction electronic display

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