EP0331639B1 - Cap-type spinning machine - Google Patents

Cap-type spinning machine Download PDF

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Publication number
EP0331639B1
EP0331639B1 EP89810151A EP89810151A EP0331639B1 EP 0331639 B1 EP0331639 B1 EP 0331639B1 EP 89810151 A EP89810151 A EP 89810151A EP 89810151 A EP89810151 A EP 89810151A EP 0331639 B1 EP0331639 B1 EP 0331639B1
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EP
European Patent Office
Prior art keywords
belt
spinning machine
accordance
cap
thread guide
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 - Lifetime
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EP89810151A
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German (de)
French (fr)
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EP0331639A1 (en
Inventor
Louis Vignon
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP0331639A1 publication Critical patent/EP0331639A1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/06—Spinning or twisting machines in which the product is wound-up continuously cap type
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
    • D01H1/241—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles driven by belt

Definitions

  • the invention relates to a bell spinning machine according to the preamble of patent claim 1.
  • an auxiliary drive is provided for the bell-shaped thread guide members, which initially enables the machine to start up faster (acceleration of the relatively sluggish thread guide member) and, if necessary, can also help to overcome the friction during operation.
  • speed of the thread guide member it has been proposed in DE-A-3046180 to arrange whorls on the thread guide members which are in contact with a drive belt and each are coupled with the associated thread guide member via a freewheel.
  • the thread guiding member which has a relatively large inertia, shows the tendency to continue turning longer than the spindle.
  • the object of the invention is now, in a bell spinning machine of the type mentioned, the auxiliary drive, which when the machine starts Drives thread guide elements to be designed in such a way that when the machine is switched off, the thread guide elements are braked more quickly - and with the same delay as the spindles. It should also be possible for the speed of the thread guide members to adapt to the growing yarn package diameter during operation.
  • the spindle drive element and the belt are expediently driven by a common drive at speeds which are in a fixed relationship to one another, in such a way that the belt runs somewhat slower in operation than the circumference of the whorls on the thread guide elements entrained by the thread.
  • the thread guide members are then slightly braked by the belt during operation by means of friction, the braking force depending on the adjustable pressing force exerted on the belt.
  • the pressing force is then increased, so that the thread guide members, despite their relatively large inertia, run out almost synchronously with the belt and come to a standstill.
  • the device for pressing the belt can be implemented in a simple manner with pressure rollers which can be moved transversely to the belt and are moved by a common control element.
  • the control element can expediently be a control rod that can be moved parallel to the belt between two end positions.
  • the bell spinning machine shown has a spindle bank 2, which is guided vertically displaceably on columns 1 and carries a row of spindles 3.
  • the spindles 3 are each rotatably mounted about a vertical axis in a bearing 4 arranged on the spindle bench 2 and are driven by a drive element, e.g. from a drive belt 5, which rests against a whorl 6 of each spindle 3, or instead from individual drive motors.
  • Each spindle 3 is assigned a bell-shaped thread guide member 7 which can be rotated about the spindle axis.
  • a thread 8 coming from a drafting system enters the thread guide member 7 from above, then passes through a guide opening at the lower edge of the thread guide member 7 and runs to the bobbin sitting on the spindle 3.
  • the thread guide members 7 are rotatably mounted in the upper neck region of the same in bearings 9 in a bracket 10 carried by the columns 1 and carry whorls 11, against which a belt 12 rests, which is pressed against the whorls 11 by a pressing device with an adjustable force.
  • the pressing device contains pressure rollers 13, each of which bears against the belt 12 between two adjacent whorls 11.
  • a pressure roller 13 is sufficient as shown for two whorls 11; but there could also be more pressure rollers.
  • the bearing 14 of each pressure roller 13 is in each case fastened to a flexible plate 15, i.e. a plate with a flexible, elastic section, the end of which is fastened to a stationary mounting rail 16. In this way, each pressure roller 13 is movably guided transversely or approximately transversely to the belt 12.
  • a common control element in the form of a control rod 17 which can be displaced parallel to the belt 12 is provided.
  • a cam 18 is mounted on the control rod 17 for each of the plates 15.
  • the plates 15 are inclined to the belt 12 and thus represent a surface inclined to the belt 12, and one of the cams 18 engages on their rear surfaces. If the control rod 17 is moved with the cams 18 in the direction of arrow P parallel to the direction of travel of the belt 12, the pressure rollers 13 are thereby moved against the elastic bending force of the plate 15 towards the belt 12 and press the latter more strongly against the whorls 11.
  • the control rod 17 is moved by a double-acting cylinder-piston unit 19. The displacement of the control rod 17 is limited in both directions by an adjustable stop 20 and 21, respectively.
  • the spindle drive belt 5 and the belt 12 are driven by a drive, not shown, at speeds which are in constant relation to one another, in such a way that the linear speed of the belt 12 is set somewhat less than the tangential speed of the peripheral surfaces of the whorls 11, which sit on the thread guide members 7 dragged by the threads.
  • the belt 12 therefore exerts a small braking force on the whorls 11 due to friction.
  • the magnitude of the braking force depends on the force with which the pressure rollers 13 press the belt 12 against the whorls 11.
  • the control rod 17 stands during the spinning as drawn in its lower end position in FIG.
  • the cylinder-piston unit 19 is also actuated when the drive for the belts 5 and 12 is switched off and, if necessary, braked, and the control rod 17 is thereby adjusted, shifted or moved sufficiently quickly into its other end position at the end stop 21.
  • the cams 18 move the pressure rollers 13 further towards the belt 12 via the inclined plates 15. The force with which the belt 12 is pressed against the whorls 11 becomes so great that the belt 12 has the braking force required to brake the thread guiding elements 7 - by friction or even by eliminating the slippage between the belt 12 and whorls 11 - on the Whorls 11 can transmit.
  • each pressure roller 13 could be carried by one arm each of a two-armed lever pivotally mounted in the mounting rail 16, the other arms of these levers being articulated on a control rod which can be moved parallel to the belt 12.
  • the bearings 14 of the pressure rollers 13 could be guided displaceably in the carrier rail 16 transversely to the belt 12 and supported on a ramp arranged on the displaceable control rod 17 and inclined to the belt 12.
  • the cams 18 can also have a wedge shape.
  • the belt 12 can of course also only be used for starting and stopping the machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

Die Erfindung bezieht sich auf eine Glockenspinnmaschine nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a bell spinning machine according to the preamble of patent claim 1.

Glockenspinnmaschinen mit angetriebenen Spindeln und um die Spindelachsen drehbaren, glockenförmigen Fadenführungsorganen sind seit langer Zeit bekannt. Die drehbaren Fadenführungsorgane benötigen in solchen Maschinen im Prinzip keinen eigenen Antrieb, sondern können von dem Faden, der durch eine Oeffnung beim freien Rand des Fadenführungsorgans hindurchtritt und auf die auf der Spindel sitzende Spule aufgewickelt wird, mitgeschleppt werden, ähnlich wie der Läufer in einer Ringspinnmaschine.Bell spinning machines with driven spindles and bell-shaped thread guide members which can be rotated about the spindle axes have been known for a long time. In such machines, the rotatable thread guide members in principle do not require their own drive, but can be dragged along by the thread that passes through an opening at the free edge of the thread guide member and is wound onto the spool seated on the spindle, similar to the runner in a ring spinning machine .

Häufig wird jedoch für die glockenförmigen Fadenführungsorgane trotzdem ein Hilfsantrieb vorgesehen, der zunächst einen schnelleren Anlauf der Maschine (Beschleunigung des relativ trägen Fadenführungsorgans) ermöglicht und der gegebenenfalls auch im Betrieb beim Ueberwinden der Reibung mithelfen kann. Damit sich im Betrieb die Drehzahl des Fadenführungsorgans ― bei konstanter Spindeldrehzahl und konstanter Fadenzuliefergeschwindigkeit ― an den wachsenden Garnpackungsdurchmesser anpassen kann, ist in der DE-A-3046180 vorgeschlagen worden, auf den Fadenführungsorganen Wirtel anzuordnen, die mit einem Antriebsriemen in Berührung stehen und die jeweils mit dem zugehörigen Fadenführungsorgan über einen Freilauf gekuppelt sind.Often, however, an auxiliary drive is provided for the bell-shaped thread guide members, which initially enables the machine to start up faster (acceleration of the relatively sluggish thread guide member) and, if necessary, can also help to overcome the friction during operation. In order for the speed of the thread guide member to adapt to the growing yarn package diameter - at constant spindle speed and constant thread delivery speed - it has been proposed in DE-A-3046180 to arrange whorls on the thread guide members which are in contact with a drive belt and each are coupled with the associated thread guide member via a freewheel.

Bei solchen Maschinen ergeben sich jedoch Probleme beim Abstellen. Das Fadenführungsorgan, das eine relativ grosse Trägheit hat, zeigt die Tendenz, länger weiterzudrehen als die Spindel.With such machines, however, problems arise when parking. The thread guiding member, which has a relatively large inertia, shows the tendency to continue turning longer than the spindle.

Die Aufgabe der Erfindung besteht nun darin, in einer Glockenspinnmaschine der eingangs angegebenen Art den Hilfsantrieb, der beim Anlauf der Maschine die Fadenführungsorgane antreibt, derart auszubilden, dass beim Abstellen der Maschine die Fadenführungsorgane rascher ― und etwa mit der gleichen Verzögerung wie die Spindeln ― abgebremst werden. Dabei soll die Möglichkeit ebenfalls gegeben sein, dass sich im Betrieb die Drehzahl der Fadenführungsorgane an die wachsenden Garnpackungsdurchmesser anpasst.The object of the invention is now, in a bell spinning machine of the type mentioned, the auxiliary drive, which when the machine starts Drives thread guide elements to be designed in such a way that when the machine is switched off, the thread guide elements are braked more quickly - and with the same delay as the spindles. It should also be possible for the speed of the thread guide members to adapt to the growing yarn package diameter during operation.

Die Aufgabe wird erfindungsgemäss mit der im kennzeichnenden Teil des Patentanspruchs 1 definierten Einrichtung gelöst.The object is achieved according to the invention with the device defined in the characterizing part of patent claim 1.

Das Spindelantriebsorgan und der Riemen werden zweckmässig von einem gemeinsamen Antrieb mit Geschwindigkeiten angetrieben, die in einem festen Verhältnis zueinander stehen, und zwar derart, dass der Riemen im Betrieb etwas langsamer läuft als der Umfang der Wirtel auf den vom Faden mitgenommenen Fadenführungsorganen. Die Fadenführungsorgane werden dann im Betrieb durch den Riemen mittels Reibung leicht gebremst, wobei die Bremskraft von der auf den Riemen ausgeübten, einstellbaren Andrückkraft abhängt. Für das Abstellen der Maschine wird dann die Andrückkraft erhöht, so dass die Fadenführungsorgane trotz ihrer relativ grossen Trägheit annähernd synchron mit dem Riemen auslaufen und zum Stillstand kommen.The spindle drive element and the belt are expediently driven by a common drive at speeds which are in a fixed relationship to one another, in such a way that the belt runs somewhat slower in operation than the circumference of the whorls on the thread guide elements entrained by the thread. The thread guide members are then slightly braked by the belt during operation by means of friction, the braking force depending on the adjustable pressing force exerted on the belt. When the machine is switched off, the pressing force is then increased, so that the thread guide members, despite their relatively large inertia, run out almost synchronously with the belt and come to a standstill.

Die Einrichtung zum Andrücken des Riemens kann in einfacher Weise mit quer zum Riemen bewegbaren Andruckrollen realisiert werden, die von einem gemeinsamen Steuerelement bewegt werden. Das Steuerelement kann dabei zweckmässig eine parallel zum Riemen zwischen zwei Endlagen bewegbare Steuerstange sein.The device for pressing the belt can be implemented in a simple manner with pressure rollers which can be moved transversely to the belt and are moved by a common control element. The control element can expediently be a control rod that can be moved parallel to the belt between two end positions.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigen:

  • Fig. 1 schematisch eine Seitenansicht einer Glockenspinnmaschine, teilweise im Schnitt, und
  • Fig. 2 einen Horizontalschnitt nach der Linie II-II in Fig. 1.
An embodiment of the invention is explained below with reference to the drawing. In this show:
  • Fig. 1 shows schematically a side view of a bell spinning machine, partly in section, and
  • Fig. 2 shows a horizontal section along the line II-II in Fig. 1.

Die dargestellte Glockenspinnmaschine besitzt eine an Säulen 1 vertikal verschiebbar geführte Spindelbank 2, die eine Reihe von Spindeln 3 trägt. Die Spindeln 3 sind je in einem an der Spindelbank 2 angeordneten Lager 4 um eine vertikale Achse drehbar gelagert und werden von einem Antriebsorgan angetrieben, z.B. von einem Antriebsriemen 5, der an einem Wirtel 6 jeder Spindel 3 anliegt, oder stattdessen von Einzelantriebsmotoren.The bell spinning machine shown has a spindle bank 2, which is guided vertically displaceably on columns 1 and carries a row of spindles 3. The spindles 3 are each rotatably mounted about a vertical axis in a bearing 4 arranged on the spindle bench 2 and are driven by a drive element, e.g. from a drive belt 5, which rests against a whorl 6 of each spindle 3, or instead from individual drive motors.

Jeder Spindel 3 ist ein um die Spindelachse drehbares, glockenförmiges Fadenführungsorgan 7 zugeordnet. Ein von einem Streckwerk kommender Faden 8 tritt von oben in das Fadenführungsorgan 7 ein, tritt dann durch eine Führungsöffnung beim unteren Rand des Fadenführungsorgans 7 hindurch und läuft zu der auf der Spindel 3 sitzenden Spule.Each spindle 3 is assigned a bell-shaped thread guide member 7 which can be rotated about the spindle axis. A thread 8 coming from a drafting system enters the thread guide member 7 from above, then passes through a guide opening at the lower edge of the thread guide member 7 and runs to the bobbin sitting on the spindle 3.

Die Fadenführungsorgane 7 sind im oben liegenden Halsbereich derselben in Lagern 9 in einer von den Säulen 1 getragenen Konsole 10 drehbar gelagert und tragen Wirtel 11, an denen ein Riemen 12 anliegt, der von einer Andrückeinrichtung mit einer einstellbaren Kraft gegen die Wirtel 11 gedrückt wird.The thread guide members 7 are rotatably mounted in the upper neck region of the same in bearings 9 in a bracket 10 carried by the columns 1 and carry whorls 11, against which a belt 12 rests, which is pressed against the whorls 11 by a pressing device with an adjustable force.

Die Andrückeinrichtung enthält im dargestellten Ausführungsbeispiel Andruckrollen 13, die je zwischen zwei einander benachbarten Wirteln 11 an dem Riemen 12 anliegen. Eine Andruckrolle 13 genügt wie gezeichnet für jeweils zwei Wirtel 11; es könnten aber auch mehr Andruckrollen vorhanden sein. Das Lager 14 jeder Andruckrolle 13 ist jeweils auf einem biegsamen Plättchen 15, d.h einem Plättchen mit einem biegsamen, elastischen Abschnitt, befestigt, dessen Ende an einer stationären Tragschiene 16 befestigt ist. In dieser Weise ist jede Andruckrolle 13 quer oder annähernd quer zum Riemen 12 bewegbar geführt.In the exemplary embodiment shown, the pressing device contains pressure rollers 13, each of which bears against the belt 12 between two adjacent whorls 11. A pressure roller 13 is sufficient as shown for two whorls 11; but there could also be more pressure rollers. The bearing 14 of each pressure roller 13 is in each case fastened to a flexible plate 15, i.e. a plate with a flexible, elastic section, the end of which is fastened to a stationary mounting rail 16. In this way, each pressure roller 13 is movably guided transversely or approximately transversely to the belt 12.

Zum Bewegen der Andruckrollen 13 ― und damit zur Aenderung der Kraft, mit welcher der Riemen 12 gegen die Wirtel 11 gedrückt wird ― ist ein gemeinsames Steuerelement in Form einer parallel zum Riemen 12 verschiebbaren Steuerstange 17 vorgesehen. Auf der Steuerstange 17 ist für jedes der Plättchen 15 je ein Nocken 18 montiert. Die Plättchen 15 sind zum Riemen 12 geneigt und stellen so eine zum Riemen 12 geneigte Fläche dar, und an ihren Rückseitenflächen greift jeweils einer der Nocken 18 an. Wenn die Steuerstange 17 mit den Nocken 18 in Richtung des Pfeiles P parallel zur Laufrichtung des Riemens 12 verschoben wird, werden dadurch die Andruckrollen 13 entgegen der elastischen Biegekraft der Plättchen 15 zum Riemen 12 hin bewegt und drücken denselben stärker gegen die Wirtel 11. Die Steuerstange 17 wird von einem doppeltwirkenden Zylinder-Kolben-Aggregat 19 bewegt. Der Verschiebeweg der Steuerstange 17 ist in beiden Richtungen durch je einen einstellbaren Anschlag 20 bzw. 21 begrenzt.To move the pressure rollers 13 - and thus To change the force with which the belt 12 is pressed against the whorls 11 - a common control element in the form of a control rod 17 which can be displaced parallel to the belt 12 is provided. A cam 18 is mounted on the control rod 17 for each of the plates 15. The plates 15 are inclined to the belt 12 and thus represent a surface inclined to the belt 12, and one of the cams 18 engages on their rear surfaces. If the control rod 17 is moved with the cams 18 in the direction of arrow P parallel to the direction of travel of the belt 12, the pressure rollers 13 are thereby moved against the elastic bending force of the plate 15 towards the belt 12 and press the latter more strongly against the whorls 11. The control rod 17 is moved by a double-acting cylinder-piston unit 19. The displacement of the control rod 17 is limited in both directions by an adjustable stop 20 and 21, respectively.

Im Betrieb der Spinnmaschine werden der Spindelantriebsriemen 5 und der Riemen 12 von einem nicht dargestellten Antrieb mit Geschwindigkeiten angetrieben, die in einem konstanten Verhältnis zueinander stehen, und zwar derart, dass die Lineargeschwindigkeit des Riemens 12 etwas kleiner eingestellt ist als die Tangentialgeschwindigkeit der Umfangsflächen der Wirtel 11, die auf den von den Fäden nachgeschleppten Fadenführungsorganen 7 sitzen. Der Riemen 12 übt daher auf die Wirtel 11 durch Reibung eine geringe Bremskraft aus. Die Grösse der Bremskraft ist abhängig von der Kraft, mit der die Andruckrollen 13 den Riemen 12 gegen die Wirtel 11 drücken. Die Steuerstange 17 steht während des Spinnens wie gezeichnet in seiner in Fig. 2 unteren Endlage am Endanschlag 20, so dass sich die Andruckrollen 13 nur wenig in die Bahn des Riemens 12 hineinerstrecken, d.h., nur eine kleine Druckkraft auf den Riemen 12 ausüben. Durch Verstellen des Endanschlages 20, wodurch die Nocken 18 längs der geneigten Plättchen 15 in eine andere Lage kommen, kann die von den Andruckrollen 13 auf den Riemen 12 ausgeübte Druckkraft und damit die vom Riemen 12 auf die Wirtel 11 durch Reibung ausgeübte Bremskraft geändert und an die im besonderen Fall vorliegenden Gegebenheiten, z.B. an die Art des Fadens 8, angepasst werden.In operation of the spinning machine, the spindle drive belt 5 and the belt 12 are driven by a drive, not shown, at speeds which are in constant relation to one another, in such a way that the linear speed of the belt 12 is set somewhat less than the tangential speed of the peripheral surfaces of the whorls 11, which sit on the thread guide members 7 dragged by the threads. The belt 12 therefore exerts a small braking force on the whorls 11 due to friction. The magnitude of the braking force depends on the force with which the pressure rollers 13 press the belt 12 against the whorls 11. The control rod 17 stands during the spinning as drawn in its lower end position in FIG. 2 at the end stop 20, so that the pressure rollers 13 extend only a little into the path of the belt 12, ie only exert a small compressive force on the belt 12. By adjusting the end stop 20, whereby the cams 18 along the inclined plates 15 come into a different position, the pressure force exerted by the pressure rollers 13 on the belt 12 and thus the braking force exerted by the belt 12 on the whorls 11 by friction can be changed and, in the special case existing conditions, for example to the type of thread 8, are adapted.

Beim Abstellen der Spinnmaschine wird mit dem Ausschalten und gegebenenfalls Abbremsen des Antriebes der Riemen 5 und 12 auch das Zylinder-Kolben-Aggregat 19 betätigt und dadurch die Steuerstange 17 ausreichend schnell in ihre andere Endlage am Endanschlag 21 verstellt bzw. verschoben bzw. bewegt. Dabei bewegen die Nocken 18 über die geneigten Plättchen 15 die Andruckrollen 13 weiter zum Riemen 12 hin. Die Kraft, mit welcher der Riemen 12 gegen die Wirtel 11 gedrückt wird, wird dadurch so gross, dass der Riemen 12 die zum Abbremsen der Fadenführungsorgane 7 erforderliche Bremskraft ― durch Reibung oder sogar unter Aufhebung des Schlupfes zwischen Riemen 12 und Wirtel 11 ― auf die Wirtel 11 übertragen kann.When the spinning machine is switched off, the cylinder-piston unit 19 is also actuated when the drive for the belts 5 and 12 is switched off and, if necessary, braked, and the control rod 17 is thereby adjusted, shifted or moved sufficiently quickly into its other end position at the end stop 21. The cams 18 move the pressure rollers 13 further towards the belt 12 via the inclined plates 15. The force with which the belt 12 is pressed against the whorls 11 becomes so great that the belt 12 has the braking force required to brake the thread guiding elements 7 - by friction or even by eliminating the slippage between the belt 12 and whorls 11 - on the Whorls 11 can transmit.

Die Verwendung des gemeinsamen Steuerelementes 17 zum Bewegen der Andruckrollen 13 ist zweckmässig. Die Uebertragung der Bewegung vom Steuerelement 17 auf die Andruckrollen 13 könnte aber natürlich auch anders als anhand der Zeichnung beschrieben erfolgen. Beispielsweise könnte jede Andruckrolle 13 von einem Arm je eines in der Tragschiene 16 schwenkbar gelagerten zweiarmigen Hebels getragen sein, wobei die anderen Arme dieser Hebel an einer parallel zum Riemen 12 bewegbaren Steuerstange angelenkt wären. Oder die Lager 14 der Andruckrollen 13 könnten in der Tragschiene 16 quer zum Riemen 12 verschiebbar geführt sein und sich an je einer auf der verschiebbaren Steuerstange 17 angeordneten, zum Riemen 12 geneigten Rampe abstützen. Auch andersartig bewegbare gemeinsame Steuerelemente zum Bewegen von quer zum Riemen 12 bewegbar geführten Andruckrollen sind denkbar. Die Nocken 18 können auch eine Keilform haben. Der Riemen 12 kann natürlich auch nur für das Anfahren und das Abstellen der Maschine verwendet werden.The use of the common control element 17 for moving the pressure rollers 13 is expedient. The transmission of the movement from the control element 17 to the pressure rollers 13 could, of course, also take place differently than described with reference to the drawing. For example, each pressure roller 13 could be carried by one arm each of a two-armed lever pivotally mounted in the mounting rail 16, the other arms of these levers being articulated on a control rod which can be moved parallel to the belt 12. Or the bearings 14 of the pressure rollers 13 could be guided displaceably in the carrier rail 16 transversely to the belt 12 and supported on a ramp arranged on the displaceable control rod 17 and inclined to the belt 12. Also differently movable common controls for moving pressure rollers which are movably guided transversely to the belt 12 are conceivable. The cams 18 can also have a wedge shape. The belt 12 can of course also only be used for starting and stopping the machine.

Claims (7)

1. Cap spinning machine having a series of rotatable spindles (3), each of these being associated with one cap-shaped thread guide member (7) rotatable about the spindle axis, further having a driving means (5) for rotating the spindles (3), and a belt (12) in contact with wharves (11) arranged on said thread guide members (7), characterized by a device (13, 17, 19) for pressing the belt (12) against the wharves (11) with an adjustable force.
2. Cap spinning machine in accordance with claim 1, characterized in that the device (13, 17, 19) comprises pressure rollers (13) which each are in contact with the belt (12) between two adjacent wharves (11) and which are movable transversely to the belt (12).
3. Cap spinning machine in accordance with claim 2, characterized in that a joint, movable control element (17) is provided for moving the pressure rollers (13).
4. Cap spinning machine in accordance with claim 3, characterized in that the control element (17) is a control rod movable parallel to the belt (12).
5. Cap spinning machine in accordance with claim 4, characterized in that the control rod (17) is coupled with each of the pressure rollers (13) via one surface (15) each, said surface being inclined to the belt (12).
6. Cap spinning machine in accordance with claim 4, characterized in that the control rod (17) is displaceable between two end stops (20, 21), preferably by means of a cylinder-piston unit (19), at least one of said end stops being adjustable.
7. Cap spinning machine in accordance with claim 1, characterized in that the spindle driving member (5) and the belt (12) can be driven at speeds that are in a constant relationship to one another.
EP89810151A 1988-02-29 1989-02-27 Cap-type spinning machine Expired - Lifetime EP0331639B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH74288 1988-02-29
CH742/88 1988-02-29

Publications (2)

Publication Number Publication Date
EP0331639A1 EP0331639A1 (en) 1989-09-06
EP0331639B1 true EP0331639B1 (en) 1991-10-02

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EP89810151A Expired - Lifetime EP0331639B1 (en) 1988-02-29 1989-02-27 Cap-type spinning machine

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US (1) US4947632A (en)
EP (1) EP0331639B1 (en)
JP (1) JPH01321924A (en)
DE (1) DE58900328D1 (en)

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DE3741430A1 (en) * 1987-12-08 1989-06-22 Zinser Textilmaschinen Gmbh SPIDER
JPH04272268A (en) * 1991-02-25 1992-09-29 Oosugi Seni Kk Carpet having good touch and production thereof

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DE3338834A1 (en) * 1983-10-26 1985-05-09 Fritz 7347 Bad Überkingen Stahlecker OE FRICTION SPIDER
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Also Published As

Publication number Publication date
JPH01321924A (en) 1989-12-27
US4947632A (en) 1990-08-14
DE58900328D1 (en) 1991-11-07
EP0331639A1 (en) 1989-09-06

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