EP0052304A1 - Gripping device for a ring-spinning machine or a ring-twisting machine - Google Patents

Gripping device for a ring-spinning machine or a ring-twisting machine Download PDF

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Publication number
EP0052304A1
EP0052304A1 EP81109473A EP81109473A EP0052304A1 EP 0052304 A1 EP0052304 A1 EP 0052304A1 EP 81109473 A EP81109473 A EP 81109473A EP 81109473 A EP81109473 A EP 81109473A EP 0052304 A1 EP0052304 A1 EP 0052304A1
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EP
European Patent Office
Prior art keywords
pin
extension
sleeve
sleeves
ring
Prior art date
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Granted
Application number
EP81109473A
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German (de)
French (fr)
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EP0052304B1 (en
Inventor
Peter Oswald
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Priority to AT81109473T priority Critical patent/ATE10517T1/en
Publication of EP0052304A1 publication Critical patent/EP0052304A1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/001—Bobbin-taking arrangements

Definitions

  • the present invention relates to a gripper device on a ring spinning or ring twisting machine for grasping empty and / or spooled tubes by means of pins attached to a carrier extending along the machine, which pins can be immersed in the cylindrical interior spaces of the tubes by a predetermined movement of the carrier.
  • a pin is provided for each sleeve and the pins are tapered at their front ends when immersed and the detected sleeves are held by pressing one sleeve against the other and the pin immersed in the interior thereof.
  • cores or bobbins are automatically detected in various operations in order to be moved from one location to another location.
  • a large number of such sleeves or bobbins often have to be detected simultaneously, particularly in ring spinning or ring twisting machines.
  • gripping members attached to a carrier are inserted into the cylindrical interior spaces of the sleeves or coils and the sleeves are gripped by pressing these gripping members together and the inner sleeve wall.
  • This is characterized in that a cylindrical extension made of elastically flexible material is provided on each pin, which extends away from the front, conically tapered pin end.
  • the front end of the extension abuts against this sleeve edge in the embodiment according to the invention.
  • the extension and then the pin slide along the edge of the sleeve; whereby the sleeve is pushed sideways and damage is avoided.
  • the pin either plunges into the sleeve or bumps past it outside of the sleeve.
  • a large number of spindles are usually lined up along their length on ring spinning and ring twisting machines.
  • a conveyor belt and a carrier with gripping members extend the length of the machine.
  • the carrier serves to move sleeves from the conveyor belt to the spindles or coils (spooled sleeves) from the spindles to the conveyor belt.
  • FIG. 1 shows such a carrier 11.
  • a pin 13 is fastened to it by means of a screw 12. This consists of a hard material, e.g. Metal.
  • a screw 12 In the longitudinal direction of the beam 11, i.e. perpendicular to the plane of the drawing, there are a large number of such pins 13 at intervals from one another.
  • a flexible hose 14 also extends in the longitudinal direction of the support 11. This is fastened to the support 11 and to a support member.
  • An extension 17 is inserted into a bore that is coaxial with the longitudinal axis 16 of the journal 13. This consists of an elastic, flexible material. 18 with a sleeve is designated, in which the pin 13 is immersed. The pin 13 is tapered at its front end when immersed in the sleeve 18.
  • the carrier 11 In order, for example, to lift sleeves from the conveyor belt (not shown) and place them on the spindles, the carrier 11 is moved against the sleeves located on the conveyor belt in such a way that a pin 13 is inserted into the cylindrical interior of each sleeve 18. After the pin 13 has reached its maximum immersion position, the air pressure inside the hose 14 is increased. The latter thus expands against the pin 13, as a result of which the latter and the sleeve 18 are pressed against one another. As a result, the sleeve 18 of the pin 13 and this held adjacent piece of tubing. In this way, all the sleeves placed on the conveyor belt of the spinning or twisting machine can be gripped at the same time and placed on the spindles by a corresponding movement of the carrier 11.
  • extension 17 has the result that, in the circumstances just described, incorrect positioning of the extension 17 on the upper edge of the sleeve can occur. In this case, as the carrier 11 sinks further, the extension bends through in its free part. He pushes the sleeve 18 either in its correct position or to the side. As a result, costly damage cannot occur.
  • FIG. 2 shows a carrier 21 which carries a row of pins running perpendicular to the plane of the drawing, all of which are identical to the pin 23.
  • the pins are fastened by means of screws 22.
  • a portion extends away from the front, conically tapered section 26 Extension 27 further forward.
  • the extension consists of a coil spring.
  • the pin 23 is also surrounded by a jacket 28, the surface of which has a relatively strong adhesive power. This is intended to ensure that a sleeve pressed onto the pin 23 is held stronger than in a system, for example on a smooth metal surface.
  • FIG. 1 shows a carrier 21 which carries a row of pins running perpendicular to the plane of the drawing, all of which are identical to the pin 23.
  • the pins are fastened by means of screws 22.
  • a portion extends away from the front, conically tapered section 26 Extension 27 further forward.
  • the extension consists of a coil spring.
  • the pin 23 is also surrounded by a jacket
  • FIG. 3 in turn shows a carrier 31, a pin 33 fastened with a screw 32, a hose 34 and a support member 35 forms a uniform piece of material, is surrounded.
  • a unitary piece of material has the advantage of being relatively simple to manufacture.
  • the end of the extension 37 is rounded, so that when the end of the extension 37 strikes the edge of the sleeve, the extension 37 slides away and thus the sleeve moves away more safely.
  • FIG. 4 shows a carrier 41. Pins are fastened to this, each of which, like the pin 43 shown, has a cavity 46 delimited by a cylinder made of elastic material.
  • the pin 43 and the extension 47 also consist of a single piece of material in this embodiment.
  • the carrier 41 has a chamber 44 extending over its entire length.
  • Each of the cavities 46 of the pins 43 arranged in the longitudinal direction of the carrier is connected to the chamber 44 via the channel 45.
  • the front end of the extension 47 is delimited by a surface which is oblique to its longitudinal axis. With this last-mentioned embodiment, the sliding of the extension 47 is again facilitated.
  • the pins 43 are immersed in the cylindrical interior of the sleeves. D a-raufhin the air pressure is increased in chamber 44, thereby also increases the air pressure in the cavity 46: Since the walls of the pins 43 are elastic, they expand thereby laterally so far out that they are on the inner walls of the sleeves, in which the pins 43 are immersed, come to rest and pins and sleeves are pressed together. These sleeves can thus be gripped and transported.
  • the extension 47 results in the mode of operation described with reference to the preceding exemplary embodiments. However, this embodiment is not primarily about avoiding damage to the carrier. An impact of the front end of the pin 43 on the upper edge of a sleeve in the absence of an extension 47 primarily results in the formation of cracks on the pin 43. As a result, the excess pressure in the chamber 44 also collapses, which among other things entails costly business interruptions.
  • the extensions 17, 27, 37, 47 preferably have the following characteristics: the length of the piece, which from the front apfenende Z extends away to the front, is at least equal to 1/10 and at most equal to half the stem length. Their elasticity is between 25 ° and 90 ° shore. They are advantageously made of rubber or thermoplastics.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

PCT No. PCT/EP81/00174 Sec. 371 Date Jul. 1, 1982 Sec. 102(e) Date Jul. 1, 1982 PCT Filed Oct. 31, 1981 PCT Pub. No. WO82/01727 PCT Pub. Date May 27, 1982.The present invention relates to a gripper apparatus on a ring spinning or ring twisting machine for gripping empty and/or wound bobbin tubes using pegs mounted on a support beam extending along the machine and inserted into the interior space of the bobbin tubes, the bobbin tubes being gripped by pressing each bobbin tube and the peg inserted into it against each other. The pressing generally is effected using compressed air. According to the invention at each peg a cylindrical extension made of elastically bendable material is provided, which extension extends from the front end of the peg towards the tip thereof. This arrangement yields the advantage that in case of faulty positioning of bobbins, tubes a head-on collision of the peg front end on the upper bobbin tube rim, with accordingly grave consequences, such as e.g. damage to the support beam or blowout of the compressed air, no longer can occur.

Description

Die vorliegende Erfindung bezieht sich auf eine Greifervorrichtung an einer Ringspinn- oder Ringzwirnmaschine zum Erfassen von leeren und/oder bespulten Hülsen mittels an einem sich längs der Maschine erstreckenden Träger angebrachter Zapfen, welche durch eine vorgegebene Bewegung des Trägers in die zylindrischen Innenräume der Hülsen eintauchbar-sind, wobei für jede Hülse ein Zapfen vorgesehen ist und die Zapfen an ihren beim,Eintauchen vorderen Enden konisch verjüngt ausgebildet und die erfassten Hülsen durch ein gegenseitiges Aneinanderpressen je einer Hülse und des in deren Innenraum eingetauchten Zapfens gehalten sind.The present invention relates to a gripper device on a ring spinning or ring twisting machine for grasping empty and / or spooled tubes by means of pins attached to a carrier extending along the machine, which pins can be immersed in the cylindrical interior spaces of the tubes by a predetermined movement of the carrier. are, wherein a pin is provided for each sleeve and the pins are tapered at their front ends when immersed and the detected sleeves are held by pressing one sleeve against the other and the pin immersed in the interior thereof.

Auf dem Textilgebiet werden Hülsen oder Spulen bei verschiedenen Operationen automatisch erfasst, um von einem Standort zu einem anderen Standort versetzt zu werden. Wie beispielsweise aus der deutschen Patentschrift Nr. 1 282 526 und der schweizerischen Patentschrift Nr. 500 303 bekannt ist, müssen insbesondere bei Ringspinn-oder Ringzwirnmaschinen oft eine Vielzahl solcher Hülsen bzw. Spulen gleichzeitig erfasst werden. Zu diesem Zweck werden an einem Träger angebrachte Greiforgane in die zylindrischen Innenräume der Hülsen bzw. Spulen eingeführt und durch Aneinanderpressen dieser Greiforgane und der inneren Hülsenwand die Hülsen erfasst.In the textile field, cores or bobbins are automatically detected in various operations in order to be moved from one location to another location. As is known, for example, from German Patent No. 1 282 526 and Swiss Patent No. 500 303, a large number of such sleeves or bobbins often have to be detected simultaneously, particularly in ring spinning or ring twisting machines. To this end gripping members attached to a carrier are inserted into the cylindrical interior spaces of the sleeves or coils and the sleeves are gripped by pressing these gripping members together and the inner sleeve wall.

Bei dieser Art des Erfassens der Hülsen bzw. der Spulen tritt mehr oder weniger häufig der Fall ein, dass eines der Greiforgane nicht vorschriftsgemäss in den zylindrischen Hohlraum der Hülse eingeführt wird. Dieser Nachteil wird, wenn eine Vielzahl von Hülsen gleichzeitig erfasst werden soll, vor allem deshalb verursacht, weil es immer wieder vorkommt, dass eine der Hülsen ungenau positioniert ist, wobei die Wahrscheinlichkeit einer solchen ungenauen Positionierung mit der Zahl der gleichzeitig zu erfassenden Hülsen zunimmt. Um ein vorschriftsgemässes Eintauchen des Greiforgans in eine Hülse auch bei etwas ungenauer Positionierung der letzteren doch noch zu erreichen, ist es bekannt, das beim Eintauchen in den Innenraum der Hülse vordere Ende des Greiforgans konisch zu verjüngen.With this type of gripping of the sleeves or the coils, the case occurs more or less frequently that one of the gripping members is not inserted correctly into the cylindrical cavity of the sleeve. This disadvantage is caused when a multiplicity of sleeves is to be gripped at the same time, mainly because one of the sleeves is repeatedly positioned inaccurately, and the probability of such an inaccurate positioning increases with the number of sleeves to be gripped at the same time. In order to achieve a proper immersion of the gripping member in a sleeve even with somewhat inaccurate positioning of the latter, it is known to taper the front end of the gripping member when immersed in the interior of the sleeve.

Diese Massnahme ergibt eine Verbesserung der Verhältnisse. Es kann aber immer noch der Fall eintreten, dass die Spitze des konisch verjüngten vorderen Endes des in die Hülse einzutauchenden Greiforgans voll auf den oberen Rand der Hülse auftrifft. In diesem Fall können bei der Verwendung von Zapfen aus hartem Material die Hülse, der Zapfen oder auch der Träger für die Greiforgane bzw. die den Träger führenden und bewegenden Teile beschädigt werden; an aufblasbaren, biegsamen Greiforganen entstehen Risse, so dass diese Greiforgane ersetzt werden müssen. Wegen der Risse strömt ausserdem die zum Aufblasen der Greiforgane benötigte Druckluft aus, was einen längeren Betriebsstillstand zur Folge haben kann. Solche Beschädigungen können daher schwerwiegender Natur sein.This measure improves the situation. However, it can still happen that the tip of the conically tapered front end of the gripping member to be immersed in the sleeve hits the upper edge of the sleeve. In this case, the sleeve, the pin or the carrier for the gripping members or the parts guiding and moving the carrier can be damaged when using pins made of hard material; There are cracks on inflatable, flexible gripping members, so that these gripping members must be replaced. Because of the cracks, the compressed air required to inflate the gripping members also flows out, which can result in a longer downtime. Such damage can therefore be serious.

Diese Nachteile sollen gemäss vorliegender Erfindung vermieden werden. Diese ist dadurch gekennzeichnet, dass an jedem Zapfen ein zylinderförmiger Fortsatz aus elastisch biegsamem Material vorgesehen ist, welcher sich vom vorderen, konisch verjüngten Zapfenende weg nach vorne erstreckt.These disadvantages are to be avoided according to the present invention. This is characterized in that a cylindrical extension made of elastically flexible material is provided on each pin, which extends away from the front, conically tapered pin end.

Wenn bei einer fehlerhaften Position einer Hülse ein volles Auftreffen eines vorderen Zapfenendes auf den oberen Hülsenrand stattfinden würde, so stösst bei der erfindungsgemässen Ausführungsform das vordere Ende des Fortsatzes gegen diesen Hülsenrand. Beim Fortschreiten der Eintauchbewegung gleitet der Fortsatz und anschliessend der Zapfen längs des Hülsenrandes; wodurch die Hülse seitwärts geschoben wird und Beschädigungen vermieden werden. Dabei taucht der Zapfen unter Anstossen an den Hülsenrand entweder in die Hülse hinein, oder er bewegt sich ausserhalb derselben an dieser vorbei.If, in the case of a defective position of a sleeve, a front pin end would fully hit the upper edge of the sleeve, the front end of the extension abuts against this sleeve edge in the embodiment according to the invention. As the immersion movement progresses, the extension and then the pin slide along the edge of the sleeve; whereby the sleeve is pushed sideways and damage is avoided. The pin either plunges into the sleeve or bumps past it outside of the sleeve.

Im folgenden sei die Erfindung anhand von Ausführungsbeispielen und der Zeichnung näher erläutert. In der letzteren stellen die Figuren Querschnitte dar, von denen

  • Fig. 1 einen an einem Träger befestigten Fortsatz,
  • Fig. 2 eine Ausführungsform mit einem als Feder ausgebildeten Fortsatz,
  • Fig. 3 einen Fortsatz, der mit der Zapfenwand ein einheitliches Materialstück bildet, und
  • Fig. 4 eine Ausführungsform mit einem dehnbaren Zapfen zeigt.
The invention is explained in more detail below with the aid of exemplary embodiments and the drawing. In the latter, the figures represent cross sections, of which
  • 1 is an extension attached to a support,
  • 2 shows an embodiment with an extension designed as a spring,
  • Fig. 3 shows an extension that forms a unitary piece of material with the pin wall, and
  • Fig. 4 shows an embodiment with an expandable pin.

Wie bereits bekannt ist, sind normalerweise an Ringspinn-und Ringzwirnmaschinen über deren Länge eine grosse Zahl von Spindeln nebeneinander gereiht. Ausserdem erstrecken sich ein Transportband und ein Träger mit Greiforganen über die Länge der Maschine. Dabei dient der Träger dazu, Hülsen vom Transportband zu den Spindeln oder Spulen (bespulte Hülsen) von den Spindeln zum Transportband zu versetzen.As is already known, a large number of spindles are usually lined up along their length on ring spinning and ring twisting machines. In addition, a conveyor belt and a carrier with gripping members extend the length of the machine. The carrier serves to move sleeves from the conveyor belt to the spindles or coils (spooled sleeves) from the spindles to the conveyor belt.

Die Fig. 1 zeigt einen solchen Träger 11. Mittels einer Schraube 12 ist an diesem ein Zapfen 13 befestigt. Dieser besteht aus einem harten Material, z.B. Metall. In der Längsrichtung des Trägers 11, d.h. senkrecht zur Zeichenebene, befinden sich in Abständen voneinander eine Vielzahl solcher Zapfen 13. Ebenfalls in der Längsrichtung des Trägers 11 erstreckt sich ein biegsamer Schlauch 14. Dieser ist am Träger 11 und an einem Stützglied befestigt.FIG. 1 shows such a carrier 11. A pin 13 is fastened to it by means of a screw 12. This consists of a hard material, e.g. Metal. In the longitudinal direction of the beam 11, i.e. perpendicular to the plane of the drawing, there are a large number of such pins 13 at intervals from one another. A flexible hose 14 also extends in the longitudinal direction of the support 11. This is fastened to the support 11 and to a support member.

In eine zur Längsachse 16 des Zapfens 13 koaxialen Bohrung ist ein Fortsatz 17 eingesetzt. Dieser besteht aus elastisch biegsamem Material. Mit 18 ist eine Hülse bezeichnet, in welche der Zapfen 13 eingetaucht ist. Der Zapfen 13 ist an seinem beim Eintauchen in die Hülse 18 vorderen Ende konisch verjüngt.An extension 17 is inserted into a bore that is coaxial with the longitudinal axis 16 of the journal 13. This consists of an elastic, flexible material. 18 with a sleeve is designated, in which the pin 13 is immersed. The pin 13 is tapered at its front end when immersed in the sleeve 18.

Um beispielsweise Hülsen vom (nicht gezeigten) Transportband abzuheben und auf die Spindeln aufzusetzen, wird der Träger 11 in der Weise gegen die sich auf dem Transportband befindlichen Hülsen bewegt, dass in den zylindrischen Innenraum jeder Hülse 18 je ein Zapfen 13 eintaucht. Nachdem der Zapfen 13 seine maximale Eintauchposition erreicht hat, wird der Luftdruck im Innern des Schlauches 14erhöht. Damit dehnt sich der letztere gegen den Zapfen 13 hin aus, wodurch dieser und die Hülse 18 gegeneinander gepresst werden. Dadurch wird die Hülse 18 vom Zapfen 13 und dem diesem benachbarten Schlauchstück gehalten. Auf diese Weise können alle auf dem Transportband der Spinn- oder Zwirnmaschine aufgestellten Hülsen gleichzeitig erfasst und durch eine entsprechende Bewegung des Trägers 11 auf die Spindeln aufgesetzt werden.In order, for example, to lift sleeves from the conveyor belt (not shown) and place them on the spindles, the carrier 11 is moved against the sleeves located on the conveyor belt in such a way that a pin 13 is inserted into the cylindrical interior of each sleeve 18. After the pin 13 has reached its maximum immersion position, the air pressure inside the hose 14 is increased. The latter thus expands against the pin 13, as a result of which the latter and the sleeve 18 are pressed against one another. As a result, the sleeve 18 of the pin 13 and this held adjacent piece of tubing. In this way, all the sleeves placed on the conveyor belt of the spinning or twisting machine can be gripped at the same time and placed on the spindles by a corresponding movement of the carrier 11.

Es kann nun, wie bereits eingangs erwähnt, der Fall eintreten, dass nicht alle auf dem Transportband aufgestellten Hülsen sich genau in ihrer vorgeschriebenen Position befinden. Durch das konisch verjüngte, beim Eintauchen in den Innenraum der Hülse vordere Ende des Zapfens 13 wird erreicht, dass auch bei gewissen Abweichungen einer Hülse von ihrer vorgeschriebenen Position ein Eintauchen des Zapfens 13 noch störungsfrei stattfindet. Es kann aber, unter der Annahme des Fehlens des Fortsatzes 17, der Fall eintreten, dass der vorderste Teil des Zapfens 13 genau auf den oberen Rand der Hülse 18 aufsetzt. Dadurch können der Zapfen 13, die Hülse 18, aber auch der Träger 11 und dessen Bewegungselemente beschädigt werden.As already mentioned at the beginning, the situation may arise in which not all the sleeves placed on the conveyor belt are exactly in their prescribed position. The conically tapered end of the pin 13, which is at the front when immersed in the interior of the sleeve, ensures that the pin 13 can still be immersed without problems even with certain deviations of a sleeve from its prescribed position. However, assuming the absence of the extension 17, the case may occur that the foremost part of the pin 13 touches exactly on the upper edge of the sleeve 18. This can damage the pin 13, the sleeve 18, but also the carrier 11 and its movement elements.

Das Vorsehen des Fortsatzes 17 hat zur Folge, dass bei den soeben beschriebenen Umständen einer fehlerhaften Positionierung der Fortsatz 17 auf die obere Hülsenkante auftreten kann. In diesem Fall knickt mit dem weiteren Absinken des Trägers 11 der Fortsatz in seinem freien Teil durch. Dabei schiebt er die Hülse 18 entweder in ihre richtige Position oder zur Seite. Dadurch können kostspielige Beschädigungen nicht vorkommen.The provision of the extension 17 has the result that, in the circumstances just described, incorrect positioning of the extension 17 on the upper edge of the sleeve can occur. In this case, as the carrier 11 sinks further, the extension bends through in its free part. He pushes the sleeve 18 either in its correct position or to the side. As a result, costly damage cannot occur.

Die Fig. 2 zeigt einen Träger 21, welcher eine senkrecht zur Zeichenebene verlaufende Reihe von Zapfen trägt, welche alle dem Zapfen 23 gleich sind. Die Befestigung der Zapfen erfolgt mittels Schrauben 22. Vom vorderen, konisch verjüngten Teilstück 26 weg erstreckt sich wiederum ein Fortsatz 27 weiter nach vorn. In diesem Beispiel besteht der Fortsatz aus einer Schraubenfeder. Der Zapfen 23 ist zudem von einem Mantel 28, dessen Oberfläche ein relativ starkes Haftvermögen besitzt, umgeben. Damit soll erreicht werden, dass eine an den Zapfen 23 angepresste Hülse stärker gehalten wird als bei einer Anlage z.B. an einer glatten Metalloberfläche. Die Fig. 3 zeigt wiederum einen Träger 31, einen mit einer Schraube 32 befestigten Zapfen 33, einen Schlauch 34 und ein Stützglied 35. Der Zapfen 33 besteht aus einem Teilstück aus festem Material, welches von einem Mantel 38, welcher zusammen mit einem Fortsatz 37 ein einheitliches Materialstück bildet, umgeben ist. Ein solches einheitliches Materialstück hat den Vorteil einer relativ einfachen Herstellung. Das Ende des Fortsatzes 37 ist abgerundet, wodurch bei einem Auftreffen des Endes des Fortsatzes 37 auf den Hülsenrand das Weggleiten des Fortsatzes 37 und damit das Wegbewegen der Hülse sicherer vor sich geht.FIG. 2 shows a carrier 21 which carries a row of pins running perpendicular to the plane of the drawing, all of which are identical to the pin 23. The pins are fastened by means of screws 22. In turn, a portion extends away from the front, conically tapered section 26 Extension 27 further forward. In this example, the extension consists of a coil spring. The pin 23 is also surrounded by a jacket 28, the surface of which has a relatively strong adhesive power. This is intended to ensure that a sleeve pressed onto the pin 23 is held stronger than in a system, for example on a smooth metal surface. FIG. 3 in turn shows a carrier 31, a pin 33 fastened with a screw 32, a hose 34 and a support member 35 forms a uniform piece of material, is surrounded. Such a unitary piece of material has the advantage of being relatively simple to manufacture. The end of the extension 37 is rounded, so that when the end of the extension 37 strikes the edge of the sleeve, the extension 37 slides away and thus the sleeve moves away more safely.

Das Beispiel gemäss Fig. 4 zeigt einen Träger 41. An diesem sind Zapfen befestigt, von denen jeder, wie beim gezeichneten Zapfen 43, einen durch einen Zylinder aus elastischem Material begrenzten Hohlraum 46 aufweist. Der Zapfen 43 und der Fortsatz 47 bestehen auch bei dieser Ausführungsform aus einem einheitlichen Materialstück. Der Träger 41 besitzt eine sich über seine ganze Länge erstreckende Kammer 44. Jeder der Hohlräume 46 der in der Längsrichtung des Trägers angeordneten Zapfen 43 ist über den Kanal 45 mit der Kammer 44 verbunden. Das vordere Ende des Fortsatzes 47 ist durch eine zu dessen Längsachse schräge Fläche begrenzt. Mit dieser zuletzt genannten Ausgestaltung wird wiederum das Gleiten des Fortsatzes 47 erleichtert.The example according to FIG. 4 shows a carrier 41. Pins are fastened to this, each of which, like the pin 43 shown, has a cavity 46 delimited by a cylinder made of elastic material. The pin 43 and the extension 47 also consist of a single piece of material in this embodiment. The carrier 41 has a chamber 44 extending over its entire length. Each of the cavities 46 of the pins 43 arranged in the longitudinal direction of the carrier is connected to the chamber 44 via the channel 45. The front end of the extension 47 is delimited by a surface which is oblique to its longitudinal axis. With this last-mentioned embodiment, the sliding of the extension 47 is again facilitated.

Um mit der in Fig. 4 gezeigten Vorrichtung eine Hülse bzw.In order to use the device shown in FIG.

eine Mehrzahl von solchen zu erfassen, werden die Zapfen 43 in den zylindrischen Innenraum der Hülsen eingetaucht. Da-raufhin wird der Luftdruck in der Kammer 44 erhöht, wodurch auch der Luftdruck im Hohlraum 46 erhöht wird: Da die Wände der Zapfen 43 elastisch sind, dehnen sie sich dabei seitlich so weit aus, dass sie an den Innenwänden der Hülsen, in welche die Zapfen 43 eingetaucht sind, zum Anliegen kommen und Zapfen und Hülsen zusammengepresst werden. Damit können diese Hülsen erfasst und transportiert werden.To detect a plurality of such, the pins 43 are immersed in the cylindrical interior of the sleeves. D a-raufhin the air pressure is increased in chamber 44, thereby also increases the air pressure in the cavity 46: Since the walls of the pins 43 are elastic, they expand thereby laterally so far out that they are on the inner walls of the sleeves, in which the pins 43 are immersed, come to rest and pins and sleeves are pressed together. These sleeves can thus be gripped and transported.

Bei einer fehlerhaften Position einer Hülse ergibt sich durch den Fortsatz 47 die anhand der vorhergehenden Ausführungsbeispiele beschriebene Wirkungsweise. Bei dieser Ausführungsform handelt es sich aber nicht vor allem darum, eine Beschädigung des Trägers zu vermeiden. Ein Auftreffen des vorderen Endes des Zapfens 43 auf den oberen Rand einer Hülse beim Fehlen eines Fortsatzes 47 hat vor allem das Entstehen von Rissen am Zapfen 43 zur Folge. Dadurch bricht zusätzlich der Ueberdruck in der Kammer 44 zusammen, was unter anderem kostspielige Betriebsunterbrüche nach sich zieht.If the position of a sleeve is incorrect, the extension 47 results in the mode of operation described with reference to the preceding exemplary embodiments. However, this embodiment is not primarily about avoiding damage to the carrier. An impact of the front end of the pin 43 on the upper edge of a sleeve in the absence of an extension 47 primarily results in the formation of cracks on the pin 43. As a result, the excess pressure in the chamber 44 also collapses, which among other things entails costly business interruptions.

Die Fortsätze 17, 27, 37, 47 besitzen vorzugsweise folgende Merkmale: Die Länge des Stücks, welches sich vom vorderen Zapfenende weg nach vorn erstreckt, ist mindestens gleich 1/10 und höchstens gleich der Hälfte der Zapfenlänge. Ihre Rücksprunghärte bzw. ihre Elastizität liegt zwischen 25° und 90° Shore. Sie bestehen vorteilhafterweise aus Kautschuk oder Thermoplasten.The extensions 17, 27, 37, 47 preferably have the following characteristics: the length of the piece, which from the front apfenende Z extends away to the front, is at least equal to 1/10 and at most equal to half the stem length. Their elasticity is between 25 ° and 90 ° shore. They are advantageously made of rubber or thermoplastics.

Claims (10)

1. Greifervorrichtung an einer Ringspinn- oder Ringzwirnmaschine zum Erfassen von leeren und/oder bespulten Hülsen mittels an einem sich längs der Maschine erstreckenden Träger angebrachter Zapfen, welche durch eine vorgegebene Bewegung des Trägers in die zylindrischen Innenräume der Hülsen eintauchbar sind, wobei für jede Hülse ein Zapfen vorgesehen ist und die Zapfen an ihren beim Eintauchen vorderen Enden konisch verjüngt ausgebildet und die erfassten Hülsen durch ein gegenseitiges Aneinanderpressen je einer Hülse und des in deren Innenraum eingetauchten Zapfens gehalten sind, dadurch gekennzeichnet, dass an jedem Zapfen (13,23,33,43) ein zylinderförmiger Fortsatz (17,27,37,47) aus elastisch biegsamem Material vorgesehen ist, welcher sich vom vorderen, konisch verjüngten Zapfenende weg nach vorne erstreckt.1. Gripper device on a ring spinning or ring twisting machine for gripping empty and / or spooled sleeves by means of pins attached to a carrier which extends along the machine and which can be immersed in the cylindrical interior spaces of the sleeves by a predetermined movement of the carrier, whereby for each sleeve a pin is provided and the pins are conically tapered at their front ends when immersed and the gripped sleeves are held by pressing one sleeve and the pin immersed in the interior thereof against each other, characterized in that on each pin (13, 23, 33 , 43) a cylindrical extension (17,27,37,47) made of elastically flexible material is provided, which extends away from the front, conically tapered pin end. 2. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass der Fortsatz (17) von kreiszylindrischem Querschnitt und in eine im Zapfen (13) angebrachte und zur Längsachse (16) des Zapfens (13) koaxiale Bohrung eingesetzt ist.2. Device according to claim 1, characterized in that the extension (17) of circular cylindrical cross-section and in a in the pin (13) and the longitudinal axis (16) of the pin (13) coaxial bore is inserted. 3. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass der Zapfen (13,23) einen metallischen Zylinder mit einem am vorderen Ende konisch verjüngten Teilstück (26) umfasst, in welches der Fortsatz (17,27) eingesetzt ist.3. Device according to claim 1, characterized in that the pin (13,23) comprises a metallic cylinder with a conically tapered portion (26) at the front end, in which the extension (17.27) is inserted. 4. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass der Zapfen (33,43) eine aus einem elastisch biegsamen Material bestehende Wandung (38) umfasst und der Fortsatz (37,47) mit dieser Wandung (38) ein einheitliches Materialstück bildet.4. Device according to claim 1, characterized in that the pin (33, 43) is a wall (38) consisting of an elastically flexible material. and the extension (37, 47) forms a uniform piece of material with this wall (38). 5. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass das vordere Ende des Fortsatzes (37) abgerundet ist.5. The device according to claim 1, characterized in that the front end of the extension (37) is rounded. 6. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass das vordere Ende des Fortsatzes (47) eine zu dessen Längsachse schräge Fläche bildet.6. The device according to claim 1, characterized in that the front end of the extension (47) forms a surface oblique to its longitudinal axis. 7. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass die Länge des Fortsatzes (17,27,37, 47) vom vorderen Zapfenende weg nach vorn mindestens gleich einem Zehntel und höchstens gleich der Hälfte der Zapfenlänge ist.7. The device according to claim 1, characterized in that the length of the extension (17,27,37, 47) from the front pin end to the front is at least equal to one tenth and at most equal to half the pin length. 8. Vorrichtung nach Patentanspruch 1, dadurch-gekennzeichnet, dass die Rücksprunghärte bzw. Elastizität des Fortsatzes (17,27,37,47) zwischen 25° und 90° Shore liegt.8. The device according to claim 1, characterized in that the resilience or elasticity of the extension (17,27,37,47) is between 25 ° and 90 ° shore. 9. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass der Fortsatz (27) aus einer Schraubenfeder besteht.9. The device according to claim 1, characterized in that the extension (27) consists of a helical spring. 10. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass der Fortsatz (17,37,47) aus Kautschuk oder Thermoplasten besteht.10. The device according to claim 1, characterized in that the extension (17,37,47) consists of rubber or thermoplastics.
EP81109473A 1980-11-13 1981-10-31 Gripping device for a ring-spinning machine or a ring-twisting machine Expired EP0052304B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81109473T ATE10517T1 (en) 1980-11-13 1981-10-31 GRIPPER DEVICE ON A RING SPINNING OR RING TWISTING MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH842880 1980-11-13
CH8428/80 1980-11-13

Publications (2)

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EP0052304A1 true EP0052304A1 (en) 1982-05-26
EP0052304B1 EP0052304B1 (en) 1984-11-28

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ID=4340194

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EP81109473A Expired EP0052304B1 (en) 1980-11-13 1981-10-31 Gripping device for a ring-spinning machine or a ring-twisting machine

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US (1) US4438623A (en)
EP (1) EP0052304B1 (en)
JP (1) JPS57501960A (en)
AT (1) ATE10517T1 (en)
DE (1) DE3167498D1 (en)
ES (1) ES507496A0 (en)
IN (1) IN154453B (en)
WO (1) WO1982001727A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528455A1 (en) * 1982-06-10 1983-12-16 Schlumberger Cie N CONTINUOUS AUTOMATIC LIFTING DEVICE FOR SPINNING LARGE METRIC NUMBERS
EP0253284A2 (en) * 1986-07-18 1988-01-20 Maschinenfabrik Rieter Ag Bobbin tube magazines
DE4008796A1 (en) * 1989-03-17 1990-09-20 Murata Machinery Ltd Two-for-one twister - which is served by robot to give doffing at stations with automatic yarn end detection
CN107130322A (en) * 2017-06-09 2017-09-05 晋中经纬泓鑫机械有限公司 A kind of yarn clipping doffed and broken yarn device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009260591B2 (en) * 2008-05-28 2014-05-15 Lantech.Com, Llc Film clamp and related methods and apparatuses for wrapping loads

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DE1008645B (en) * 1954-01-18 1957-05-16 Holstein & Kappert Maschf Bottle gripper for a machine for emptying bottle crates
DE1532603A1 (en) * 1966-06-07 1970-02-05 Winterwerb Streng & Co Gmbh Ke Method and machine for the simultaneous cleaning of bottles and bottle crates
CH500303A (en) * 1969-12-18 1970-12-15 Rieter Ag Maschf Device for the joint removal and placement of a plurality of cops or sleeves placed on spindles on ring spinning and ring twisting machines
US4173368A (en) * 1978-05-01 1979-11-06 The Lodge & Shipley Company Apparatus for frictionally gripping the interior surface of a container during handling by an article transferring means

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US3327450A (en) * 1964-08-12 1967-06-27 Terry L Carter Case packer
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US3835633A (en) * 1973-04-30 1974-09-17 Zinser Textilmaschinen Gmbh Gripper for yarn carriers and the like
US3945486A (en) * 1974-10-15 1976-03-23 Glass Containers Corporation Container supporting and transporting device

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Publication number Priority date Publication date Assignee Title
DE1008645B (en) * 1954-01-18 1957-05-16 Holstein & Kappert Maschf Bottle gripper for a machine for emptying bottle crates
DE1532603A1 (en) * 1966-06-07 1970-02-05 Winterwerb Streng & Co Gmbh Ke Method and machine for the simultaneous cleaning of bottles and bottle crates
CH500303A (en) * 1969-12-18 1970-12-15 Rieter Ag Maschf Device for the joint removal and placement of a plurality of cops or sleeves placed on spindles on ring spinning and ring twisting machines
US4173368A (en) * 1978-05-01 1979-11-06 The Lodge & Shipley Company Apparatus for frictionally gripping the interior surface of a container during handling by an article transferring means

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528455A1 (en) * 1982-06-10 1983-12-16 Schlumberger Cie N CONTINUOUS AUTOMATIC LIFTING DEVICE FOR SPINNING LARGE METRIC NUMBERS
EP0253284A2 (en) * 1986-07-18 1988-01-20 Maschinenfabrik Rieter Ag Bobbin tube magazines
EP0253284A3 (en) * 1986-07-18 1988-12-07 Maschinenfabrik Rieter Ag Bobbin tube magazines
DE4008796A1 (en) * 1989-03-17 1990-09-20 Murata Machinery Ltd Two-for-one twister - which is served by robot to give doffing at stations with automatic yarn end detection
CN107130322A (en) * 2017-06-09 2017-09-05 晋中经纬泓鑫机械有限公司 A kind of yarn clipping doffed and broken yarn device

Also Published As

Publication number Publication date
ES8305435A1 (en) 1983-04-01
US4438623A (en) 1984-03-27
IN154453B (en) 1984-10-27
JPS57501960A (en) 1982-11-04
ATE10517T1 (en) 1984-12-15
ES507496A0 (en) 1983-04-01
WO1982001727A1 (en) 1982-05-27
EP0052304B1 (en) 1984-11-28
DE3167498D1 (en) 1985-01-10

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