EP0392279B1 - Bobbin gripping device - Google Patents

Bobbin gripping device Download PDF

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Publication number
EP0392279B1
EP0392279B1 EP90106078A EP90106078A EP0392279B1 EP 0392279 B1 EP0392279 B1 EP 0392279B1 EP 90106078 A EP90106078 A EP 90106078A EP 90106078 A EP90106078 A EP 90106078A EP 0392279 B1 EP0392279 B1 EP 0392279B1
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EP
European Patent Office
Prior art keywords
housing part
gripping device
longitudinal support
bobbin gripping
bobbin
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
Application number
EP90106078A
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German (de)
French (fr)
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EP0392279A1 (en
Inventor
Norbert Städele
Martin Hoffmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Zinser Textilmaschinen GmbH
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Publication date
Application filed by Zinser Textilmaschinen GmbH filed Critical Zinser Textilmaschinen GmbH
Publication of EP0392279A1 publication Critical patent/EP0392279A1/en
Application granted granted Critical
Publication of EP0392279B1 publication Critical patent/EP0392279B1/en
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H9/00Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/001Bobbin-taking arrangements
    • D01H9/003Graspers operating under the action of a fluid

Definitions

  • the invention relates to a bobbin gripping device which is arranged on a longitudinal member of an automatic bobbin changing machine of a ring spinning machine, at least a part of the compressed air-operated bobbin gripping device being able to be moved out of the bobbin gripping area under external force.
  • Coil gripping elements cantilevering from longitudinal beams are subject to the risk of damage if they start up against unrelenting obstacles.
  • the object of the present invention is to design a bobbin gripping device of the type mentioned at the outset in such a way that no air loss occurs when the gripping element is pivoted out of the active region.
  • This object is achieved in that all compressed air-carrying parts of the pneumatic working element actuating the bobbin gripping device are rigidly attached to the longitudinal member carrying the bobbin gripping device. This has the advantage that there is no leakage loss when the gripping elements are pivoted out of the effective area, since the parts leading to the carrying out of the gripping function are rigidly fastened to the side member.
  • the bobbin gripping device can consist of a housing part rigidly fastened to the longitudinal member and of a movable housing part, the compressed air-carrying parts of the pneumatic working element being arranged exclusively in the rigidly fastened housing part.
  • the movable housing part can be arranged via a latching connection on the housing part fastened to the longitudinal member, the housing part fastened to the longitudinal member having a cylindrical region with at least one latching element, in which a counter-latching element of the movable housing part engages. This makes it possible for the movable housing part to disengage from the latching element of the housing part fastened to the longitudinal member when it encounters an obstacle.
  • a roller membrane which can be pressurized with air and which has a base plate connected to the pin-like gripping element can be fastened within the cylindrical region of the housing part fastened to the longitudinal member.
  • the compressed air-carrying parts are in turn attached to the longitudinal beam and are not involved in a release movement of the movable housing part from the effective area.
  • a truncated cone area can be connected to the cylindrical area of the housing part fastened to the side member, which is provided on the front side with a bearing point for the gripping element.
  • the movable housing part can enclose the housing part fastened to the side member in the area facing away from the side member.
  • the gripping element consists of two coupling parts which can be coupled together, one part of which is connected to the rolling membrane and the base plate in the housing part fastened to the longitudinal member and the other part is mounted in the movable housing part.
  • the compressed air-carrying parts are attached to the side member, so that only the movable housing part can be moved out of the effective area with a part of the gripping element.
  • the movable housing part is pivotably arranged on the housing part fastened to the longitudinal member via at least one horizontal pin and is held in its operative position by means of a latching element.
  • the movable housing part can be designed like a fork, the abutment for the gripping element being mounted in the fork center. With such a construction, if the movable housing part runs against an obstacle, it is simply pivoted away from the effective area, so that no disadvantageous damage to the coil gripping device can occur.
  • each fork arm has two bolts arranged at a distance from one another, one bolt being part of a latching element and the other bolt being spring-loaded in a horizontal guide of the housing part fastened to the longitudinal member.
  • the movable housing part is not only pivoted out of the effective range, but after a certain angular position is released from the housing part fastened to the side member.
  • the bobbin gripping device consists of a housing part fastened to the longitudinal member and of a movable housing part, the movable housing part also being mounted on the longitudinal member.
  • a bellows can be mounted on the housing part fastened to the longitudinal member, via which bellows an actuating lever connected to at least one gripping element of the coil gripping device can be acted upon, the actuating lever being mounted on the movable housing part.
  • Fig. 1 shows a first embodiment of the bobbin gripping device 1, which is arranged on a longitudinal member 2 of an automatic bobbin changer of a ring spinning machine, not shown.
  • This longitudinal beam 2 is part of a gripper bank of the automatic bobbin changer, not shown in detail.
  • the object of the bobbin gripping device is to move a pneumatically actuatable working element 4 to the right with the aid of a compressed air-guiding part 3 in order to act on the upper region of a sleeve 21, this region of the sleeve 21 being located in a receiving funnel 20 and with the aid of the pneumatic working element 4 can be pressed against an abutment 15.
  • the compressed air-carrying part 3 is in the embodiment according to Fig.
  • the pneumatic working element which is designed, for example, as a pin-like gripping element 13, is located on this base plate 12.
  • the compressed air-carrying part 3 is arranged within a housing part 5 which is fastened to the side member 2 and which has a cylindrical region 8 with at least one latching element 9.
  • a truncated cone region 14 Connected to the cylindrical region 8 of the housing part 5 fastened to the longitudinal member 2 is a truncated cone region 14, which is provided on the end face with a bearing point 31 for the gripping element 13.
  • a compression spring 33 is supported on the one hand against the end face of the frustoconical region 14 and on the other hand against the base plate 12.
  • the receiving funnel 20 with the abutment 15 is arranged on a movable housing part 6, which in turn engages via a counter-locking element 10 in the locking element 9 of the housing part 5 fastened to the side member 2.
  • Locking element 9 and counter-locking element 10 form a locking connection 7 between the housing parts 5 and 6.
  • the rolling membrane 11 moves to the right, as a result of which the peg-like gripping element 13 is moved to the right via the base plate 12 and thus presses the upper region of the sleeve 21 against the abutment 15 and detects the sleeve for further transport.
  • the movable housing part 6 disengages from the latching element 9 of the housing part 5 fastened to the side member 2 via the counter-latching element 10 and thus does not cause any damage to the compressed air-carrying part of the the pneumatic gripping device actuating the coil gripping device 4.
  • the coil gripping device 1 consists of a housing part 5 fastened to the side member 2 and of a movable housing part 6, the compressed air-carrying parts of the pneumatic working element 4 being arranged exclusively in the fastened housing part 5.
  • the housing part 5 fastened to the longitudinal member 2 is only designed as a cylinder jacket 34, a connection being again created between the housing part 5 fastened to the longitudinal member 2 and the movable housing part 6 via a latching connection.
  • the gripping element 13 ' consists of two pin parts 16 and 17 which can be coupled in terms of their effectiveness, one part 16 of which is mounted with the roller membrane 11 and the base plate 12 in the housing part 5 fastened to the longitudinal member 2.
  • the other part 17 of the gripping element 13 ' is supported by a bearing 22 on the movable housing part 6, which in turn carries the receiving funnel 20 with the abutment 15.
  • Fig. 2 shows the bobbin gripping device in the active position, in which the two detachable parts 16 and 17 of the pin-shaped gripping element 13 'are operatively connected to one another and pressurize the upper region of the sleeve 21 against the abutment 15 and the sleeve via the roller membrane 11 capture with it.
  • Fig. 3 it is shown how, after acting on an obstacle, the movable housing part 6 is separated from the housing part 5 fastened to the side member 2, namely by the counter-latching element 10 of the movable housing part 6 being released from the latching element 9 of the housing part 5.
  • the two parts 16 and 17 of the pin-like gripping element 13 ' are separated, the part 16 remaining on the housing part and the part 17 being separated together with the housing part 6.
  • a spring 35 is used, which is supported on the one hand on the front end of the truncated cone region 14 'and on the other hand on a plate 36, which can also be designed as a coupling part for the front end of the part 16 of the pin-shaped gripping element 13'.
  • the movable housing part 6 ' is pivotably arranged via at least one horizontal pin 18 on the housing part 5 fastened to the side member 2 and is held in its operative position by means of a locking element 25.
  • the housing part 5 attached to the side member 2 in turn consists of a cylindrical region 8 and a truncated cone region 14.
  • the receiving funnel 20 and the abutment 15 are arranged.
  • a locking element 25 is provided between the housing part 5 and the housing part 6 ', which disengages as soon as the movable housing part 6' e.g. hits an obstacle from above.
  • the movable housing part 6 'again consists of two fork arms 23 and 23' in whose intersection the abutment 15 and the receiving funnel 20 are fastened. These two fork arms 23 and 23 'are each equipped with two bolts 26 and 26', the bolts 26 being mounted in a horizontal guide 27 of the housing part 5 and through a spring 28 is loaded and the bolts 26 'are embedded in a counter-latching 37 on the fixed housing part 5.
  • the movable housing part 6 ' first pivots with its two fork arms 23 around the pivot bolts 26, the bolts 26' sliding out of their counter-detents 37.
  • the springs 28 then push the bolts 26 out the guides 27.
  • the movable housing part 6 'with the two fork arms 23 is then no longer guided and held, but - analogously to the design according to FIGS. 1 to 3 - completely separated from the housing part 5 rigidly fastened to the side member 2.
  • FIG. 7 A further embodiment of the invention is shown in FIG. 7, wherein the bobbin gripping device 1 consists of a housing part 5 fastened to the side member 2, within which a bellows 29 is mounted.
  • the housing part 6 ′′ is also fastened to the side member 2 via latching elements 32 and has a bearing point 31 in which an angle lever 30 is rotatably mounted.
  • this angle lever 30 has two arms 38 and 39, the arm 38 being in the effective area of the bellows 29 and the arm 39 being connected at the end to the pin-like gripping element 13.
  • the lever 30 pivots about its pivot point 31, as a result of which the pin-shaped gripping element 13 is moved to the right via the arm 38 and the arm 39 and thus grips and holds the upper region of a sleeve .
  • the two housing parts are divided in such a way that when the movable housing part 6 or 6 'or 6''is thrown or pivoted away, none Leakage of the parts actuated by compressed air occurs. In this case, the full functionality of the coil gripping device is ensured even after hitting an obstacle.

Description

Die Erfindung bezieht sich auf eine Spulengreifvorrichtung, welche an einem Längsträger eines Spulenwechselautomaten einer Ringspinnmaschine angeordnet ist, wobei mindestens ein Teil der druckluftbetätigten Spulengreifvorrichtung unter äußerer Krafteinwirkung aus dem Spulengreifbereich herausbewegbar ist.The invention relates to a bobbin gripping device which is arranged on a longitudinal member of an automatic bobbin changing machine of a ring spinning machine, at least a part of the compressed air-operated bobbin gripping device being able to be moved out of the bobbin gripping area under external force.

Von Längsträgern, beispielsweise Greiferbalken, abkragende Spulengreifelemente unterliegen der Gefahr der Beschädigung, wenn sie gegen unnachgiebige Hindernisse anlaufen sollten. Es zählt in diesem Zusammenhang bereits zum Stand der Technik, die Spulengreifelemente ausklinkbar am Längsträger anzuordnen (Prospekt 666169000 9/83). Stoßen hier die Spulengreifelemente gegen ein Hindernis, so schwenken diese Spulengreifelemente aus ihrem Wirkbereich heraus, wobei ein Federelement aus einer Halterung herausgleitet. Hierbei kann die Druckluftzufuhr gestört werden, so daß nach dem Einschwenken der Greifelemente in den Wirkbereich nicht mehr die einwandfreie Funktion dieser Greifelemente gewährleistet ist.Coil gripping elements cantilevering from longitudinal beams, for example gripper bars, are subject to the risk of damage if they start up against unrelenting obstacles. In this context, it is already part of the state of the art to arrange the bobbin grip elements on the side member so that they can be released (brochure 666 169 000 9/83). If here the bobbin grip elements hit an obstacle, these bobbin grip elements pivot out of their effective range, a spring element sliding out of a holder. This can disrupt the compressed air supply, so that after the pivoting of the gripping elements into the effective area, the proper functioning of these gripping elements is no longer guaranteed.

Aufgabe der vorliegenden Erfindung ist es demgegenüber, eine Spulengreifvorrichtung der eingangs genannten Art so auszubilden, daß bei aus dem Wirkbereich herausgeschwenktem Greifelement kein Luftverlust eintritt.In contrast, the object of the present invention is to design a bobbin gripping device of the type mentioned at the outset in such a way that no air loss occurs when the gripping element is pivoted out of the active region.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß alle druckluftführenden Teile des die Spulengreifvorrichtung betätigenden pneumatischen Arbeitselementes an dem die Spulengreifvorrichtung tragenden Längsträger starr befestigt sind. Hierdurch ergibt sich der Vorteil, daß beim Ausschwenken der Greifelemente aus dem Wirkbereich kein Leckverlust auftritt, da die zur Durchführung der Greiffunktion führenden Teile starr am Längsträger befestigt sind.This object is achieved in that all compressed air-carrying parts of the pneumatic working element actuating the bobbin gripping device are rigidly attached to the longitudinal member carrying the bobbin gripping device. This has the advantage that there is no leakage loss when the gripping elements are pivoted out of the effective area, since the parts leading to the carrying out of the gripping function are rigidly fastened to the side member.

In weiterer Ausgestaltung der Erfindung kann die Spulengreifvorrichtung aus einem am Längsträger starr befestigten Gehäuseteil und aus einem beweglichen Gehäuseteil bestehen, wobei die druckluftführenden Teile des pneumatischen Arbeitsorgans ausschließlich im starr befestigten Gehäuseteil angeordnet sind. Hierbei kann das bewegliche Gehäuseteil über eine Rastverbindung an dem am Längsträger befestigten Gehäuseteil angeordnet sein, wobei der am Längsträger befestigte Gehäuseteil einen zylinderförmigen Bereich mit mindestens einem Rastelement aufweist, in welches ein Gegenrastelement des beweglichen Gehäuseteils eingreift. Damit besteht die Möglichkeit, daß bei Auftreffen auf ein Hindernis das bewegliche Gehäuseteil über die Gegenraste aus dem Rastelement des am Längsträger befestigten Gehäuseteils ausklinkt.In a further embodiment of the invention, the bobbin gripping device can consist of a housing part rigidly fastened to the longitudinal member and of a movable housing part, the compressed air-carrying parts of the pneumatic working element being arranged exclusively in the rigidly fastened housing part. Here, the movable housing part can be arranged via a latching connection on the housing part fastened to the longitudinal member, the housing part fastened to the longitudinal member having a cylindrical region with at least one latching element, in which a counter-latching element of the movable housing part engages. This makes it possible for the movable housing part to disengage from the latching element of the housing part fastened to the longitudinal member when it encounters an obstacle.

In weiterer Ausgestaltung der Erfindung kann innerhalb des zylinderförmigen Bereichs des am Längsträger befestigten Gehäuseteils eine druckluftbeaufschlagbare Rollmembran befestigt sein, welche eine mit dem zapfenartig ausgebildeten Greifelement verbundene Grundplatte aufweist. Damit sind erfindungsgemäß wiederum die druckluftführenden Teile an dem Längsbalken befestigt und nicht an einer Ausklinkbewegung des beweglichen Gehäuseteils aus dem Wirkbereich beteiligt. An dem zylinderförmigen Bereich des am Längsträger befestigten Gehäuseteils kann ein Kegelstumpfbereich anschließen, welcher stirnseitig mit einer Lagerstelle für das Greifelement versehen ist. Hierbei kann das bewegliche Gehäuseteil den am Längsträger befestigten Gehäuseteil im dem Längsträger abgewandten Bereich umschließen.In a further embodiment of the invention, a roller membrane which can be pressurized with air and which has a base plate connected to the pin-like gripping element can be fastened within the cylindrical region of the housing part fastened to the longitudinal member. Thus, according to the invention, the compressed air-carrying parts are in turn attached to the longitudinal beam and are not involved in a release movement of the movable housing part from the effective area. A truncated cone area can be connected to the cylindrical area of the housing part fastened to the side member, which is provided on the front side with a bearing point for the gripping element. Here, the movable housing part can enclose the housing part fastened to the side member in the area facing away from the side member.

In weiterer Ausgestaltung der Erfindung besteht die Möglichkeit, daß das Greifelement aus zwei, miteinander kuppelbaren Zapfenteilen besteht, deren einer Teil mit der Rollmembran und der Grundplatte verbunden im am Längsträger befestigten Gehäuseteil und deren anderer Teil im beweglichen Gehäuseteil gelagert ist. Wiederum sind die druckluftführenden Teile am Längsträger befestigt, so daß nur der bewegliche Gehäuseteil mit einem Teil des Greifelements aus dem Wirkbereich herausbewegt werden kann.In a further embodiment of the invention, there is the possibility that the gripping element consists of two coupling parts which can be coupled together, one part of which is connected to the rolling membrane and the base plate in the housing part fastened to the longitudinal member and the other part is mounted in the movable housing part. Again, the compressed air-carrying parts are attached to the side member, so that only the movable housing part can be moved out of the effective area with a part of the gripping element.

Alternativ besteht darüberhinaus erfindungsgemäß die Möglichkeit, daß das bewegliche Gehäuseteil über mindestens einen horizontalen Zapfen schwenkbar an dem am Längsträger befestigten Gehäuseteil angeordnet und über ein Rastelement in seiner Wirkstellung gehaltert ist. Hierbei kann das bewegliche Gehäuseteil gabelartig ausgebildet sein, wobei im Gabelzentrum das Widerlager für das Greifelement gelagert ist. Läuft bei einer derartigen Konstruktion das bewegliche Gehäuseteil gegen ein Hindernis, so erfolgt ein einfaches Abschwenken aus dem Wirkbereich, so daß keine nachteiligen Beschädigungen der Spulengreifvorrichtung auftreten können.Alternatively, according to the invention, there is also the possibility that the movable housing part is pivotably arranged on the housing part fastened to the longitudinal member via at least one horizontal pin and is held in its operative position by means of a latching element. The movable housing part can be designed like a fork, the abutment for the gripping element being mounted in the fork center. With such a construction, if the movable housing part runs against an obstacle, it is simply pivoted away from the effective area, so that no disadvantageous damage to the coil gripping device can occur.

In weiterer Ausgestaltung der Erfindung besteht auch die Möglichkeit, daß jeder Gabelarm zwei im Abstand voneinander angeordnete Bolzen aufweist, wobei der eine Bolzen Teil eines Rastelements ist und der andere Bolzen in eine horizontale Führung des am Längsträger befestigten Gehäuseteils federbeaufschlagt lagert. Bei dieser Alternative erfolgt nicht nur ein Abschwenken aus dem Wirkbereich, sondern nach einer bestimmten Winkelstellung eine Lösung des beweglichen Gehäuseteils vom am Längsträger befestigten Gehäuseteils.In a further embodiment of the invention, there is also the possibility that each fork arm has two bolts arranged at a distance from one another, one bolt being part of a latching element and the other bolt being spring-loaded in a horizontal guide of the housing part fastened to the longitudinal member. In this alternative, the movable housing part is not only pivoted out of the effective range, but after a certain angular position is released from the housing part fastened to the side member.

In einer weiteren Ausführungsform der Erfindung besteht die Möglichkeit, daß die Spulengreifvorrichtung aus einem am Längsträger befestigten Gehäuseteil und aus einem beweglichen Gehäuseteil besteht, wobei der bewegliche Gehäuseteil ebenfalls am Längsträger gelagert ist. Hierbei kann am am Längsträger befestigten Gehäuseteil ein Balg gelagert sein, über welchen ein mit mindestens einem Greifelement der Spulengreifvorrichtung verbundener Betätigungshebel beaufschlagbar ist, wobei der Betätigungshebel am beweglichen Gehäuseteil gelagert ist.In a further embodiment of the invention, there is the possibility that the bobbin gripping device consists of a housing part fastened to the longitudinal member and of a movable housing part, the movable housing part also being mounted on the longitudinal member. In this case, a bellows can be mounted on the housing part fastened to the longitudinal member, via which bellows an actuating lever connected to at least one gripping element of the coil gripping device can be acted upon, the actuating lever being mounted on the movable housing part.

Die Erfindung wird nachfolgend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher beschrieben. In der Zeichnung zeigen:

Fig. 1
eine Ausführungsform der Erfindung in schematischer Seitenansicht im Schnitt
Fig. 2 und 3
eine andere Ausführungsmöglichkeit der Erfindung in schematischer Seitenansicht mit Fig. 2 in Wirkstellung und Fig. 3 in gelöster Stellung des beweglichen Gehäuseteils;
Fig. 4
eine weitere Ausführungsmöglichkeit der Erfindung mit schwenkbarem, beweglichem Gehäuseteil;
Fig. 5
eine Draufsicht auf die Ausführungsmöglichkeit nach Fig. 4;
Fig. 6
eine Teilansicht einer anderen Ausführungsform in Seitenansicht, teils gebrochen;
Fig. 7
eine weitere Ausführungsmöglichkeit der Erfindung in schematischer Seitenansicht im Schnitt.
The invention is described below with reference to exemplary embodiments shown in the drawing. The drawing shows:
Fig. 1
an embodiment of the invention in a schematic side view in section
2 and 3
another embodiment of the invention in a schematic side view with Figure 2 in the active position and Figure 3 in the released position of the movable housing part.
Fig. 4
a further embodiment of the invention with a pivotable, movable housing part;
Fig. 5
a plan view of the embodiment of FIG. 4;
Fig. 6
a partial view of another embodiment in side view, partly broken;
Fig. 7
a further embodiment of the invention in a schematic side view in section.

Fig. 1 zeigt eine erste Ausführungsform der Spulengreifvorrichtung 1, welche an einem Längsträger 2 eines Spulenwechselautomaten einer nicht näher dargestellten Ringspinnmaschine angeordnet ist. Dieser Längsträger 2 ist Teil einer nicht näher dargestellten Greiferbank des Spulenwechselautomaten. Aufgabe der Spulengreifvorrichtung ist es, mit Hilfe eines druckluftführenden Teils 3 ein pneumatisch betätigbares Arbeitselement 4 nach rechts zu bewegen, um den oberen Bereich einer Hülse 21 zu beaufschlagen, wobei sich dieser Bereich der Hülse 21 in einem Aufnahmetrichter 20 befindet und mit Hilfe des pneumatischen Arbeitselements 4 gegen ein Widerlager 15 gedrückt werden kann. Das druckluftführende Teil 3 ist bei der Ausführungsform nach Fig. 1 als Rollmembran 11 ausgebildet, welche einerseits am Längsträger 2 befestigt und andererseits vorderseitig mit einer Grundplatte 12 verbunden ist. An dieser Grundplatte 12 befindet sich das pneumatische Arbeitselement, welches beispielsweise als zapfenartig ausgebildetes Greifelement 13 gestaltet ist.Fig. 1 shows a first embodiment of the bobbin gripping device 1, which is arranged on a longitudinal member 2 of an automatic bobbin changer of a ring spinning machine, not shown. This longitudinal beam 2 is part of a gripper bank of the automatic bobbin changer, not shown in detail. The object of the bobbin gripping device is to move a pneumatically actuatable working element 4 to the right with the aid of a compressed air-guiding part 3 in order to act on the upper region of a sleeve 21, this region of the sleeve 21 being located in a receiving funnel 20 and with the aid of the pneumatic working element 4 can be pressed against an abutment 15. The compressed air-carrying part 3 is in the embodiment according to Fig. 1 designed as a rolling membrane 11 which is attached to the side member 2 on the one hand and is connected to a base plate 12 on the front side. The pneumatic working element, which is designed, for example, as a pin-like gripping element 13, is located on this base plate 12.

Das druckluftführende Teil 3 ist innerhalb eines am Längsträger 2 befestigten Gehäuseteils 5 angeordnet, welches einen zylinderförmigen Bereich 8 mit mindestens einem Rastelement 9 aufweist. An den zylinderförmigen Bereich 8 des am Längsträger 2 befestigten Gehäuseteils 5 schließt sich ein Kegelstumpfbereich 14 an, welcher stirnseitig mit einer Lagerstelle 31 für das Greifelement 13 versehen ist. Eine Druckfeder 33 stützt sich einerseits gegen die Stirnfläche des kegelstumpfförmigen Bereichs 14 und andererseits gegen die Grundplatte 12 ab.The compressed air-carrying part 3 is arranged within a housing part 5 which is fastened to the side member 2 and which has a cylindrical region 8 with at least one latching element 9. Connected to the cylindrical region 8 of the housing part 5 fastened to the longitudinal member 2 is a truncated cone region 14, which is provided on the end face with a bearing point 31 for the gripping element 13. A compression spring 33 is supported on the one hand against the end face of the frustoconical region 14 and on the other hand against the base plate 12.

Der Aufnahmetrichter 20 mit dem Widerlager 15 ist an einem beweglichen Gehäuseteil 6 angeordnet, welches seinerseits über ein Gegenrastelement 10 in das Rastelement 9 des am Längsträger 2 befestigten Gehäuseteils 5 eingreift.The receiving funnel 20 with the abutment 15 is arranged on a movable housing part 6, which in turn engages via a counter-locking element 10 in the locking element 9 of the housing part 5 fastened to the side member 2.

Rastelement 9 und Gegenrastelement 10 bilden eine Rastverbindung 7 zwischen den Gehäuseteilen 5 und 6.
Bei Druckluftbetätigung bewegt sich die Rollmembran 11 nach rechts, wodurch über die Grundplatte 12 das zapfenartige Greifelement 13 nach rechts bewegt wird und damit den oberen Bereich der Hülse 21 gegen das Widerlager 15 drückt und die Hülse zum Weitertransport erfaßt.
Locking element 9 and counter-locking element 10 form a locking connection 7 between the housing parts 5 and 6.
When compressed air is actuated, the rolling membrane 11 moves to the right, as a result of which the peg-like gripping element 13 is moved to the right via the base plate 12 and thus presses the upper region of the sleeve 21 against the abutment 15 and detects the sleeve for further transport.

Sollte die Spulengreifvorrichtung 1 beim Absenken auf den oberen Bereich der Hülse 21 auf ein Hindernis stoßen, so klinkt der bewegliche Gehäuseteil 6 über das Gegenrastelement 10 aus dem Rastelement 9 des am Längsträger 2 befestigten Gehäuseteils 5 aus und verursacht damit keinen Schaden an dem druckluftführenden Teil des die Spulengreifvorrichtung betätigenden pneumatischen Arbeitselements 4.If the bobbin gripping device 1 encounters an obstacle when lowering onto the upper region of the sleeve 21, the movable housing part 6 disengages from the latching element 9 of the housing part 5 fastened to the side member 2 via the counter-latching element 10 and thus does not cause any damage to the compressed air-carrying part of the the pneumatic gripping device actuating the coil gripping device 4.

Auch bei dem Ausführungsbeispiel nach Fig. 2 und 3 besteht die Spulengreifvorrichtung 1 aus einem am Längsträger 2 befestigten Gehäuseteil 5 und aus einem beweglichen Gehäuseteil 6, wobei die druckluftführenden Teile des pneumatischen Arbeitsorgans 4 ausschließlich im befestigten Gehäuseteil 5 angeordnet sind. Bei dieser Ausführungsform nach Fig. 2 und 3 ist das am Längsträger 2 befestigte Gehäuseteil 5 lediglich als Zylindermantel 34 ausgebildet, wobei wiederum über eine Rastverbindung 7 eine Verbindung zwischen dem am Längsträger 2 befestigten Gehäuseteil 5 und dem beweglichen Gehäuseteil 6 geschaffen wird.2 and 3, the coil gripping device 1 consists of a housing part 5 fastened to the side member 2 and of a movable housing part 6, the compressed air-carrying parts of the pneumatic working element 4 being arranged exclusively in the fastened housing part 5. In this embodiment according to FIGS. 2 and 3, the housing part 5 fastened to the longitudinal member 2 is only designed as a cylinder jacket 34, a connection being again created between the housing part 5 fastened to the longitudinal member 2 and the movable housing part 6 via a latching connection.

Bei dieser Ausführungsform besteht das Greifelement 13' aus zwei wirkungsmäßig miteinander kuppelbaren Zapfenteilen 16 und 17, deren einer Teil 16 mit der Rollmembran 11 und der Grundplatte 12 im am Längsträger 2 befestigten Gehäuseteil 5 gelagert ist. Der andere Teil 17 des Greifelements 13' ist über eine Lagerstelle 22 am beweglichen Gehäuseteil 6 gelagert, welches seinerseits wiederum den Aufnahmetrichter 20 mit dem Widerlager 15 trägt.In this embodiment, the gripping element 13 'consists of two pin parts 16 and 17 which can be coupled in terms of their effectiveness, one part 16 of which is mounted with the roller membrane 11 and the base plate 12 in the housing part 5 fastened to the longitudinal member 2. The other part 17 of the gripping element 13 'is supported by a bearing 22 on the movable housing part 6, which in turn carries the receiving funnel 20 with the abutment 15.

Fig. 2 stellt die Spulengreifvorrichtung in Wirkstellung dar, in welcher die beiden kuppelbaren Teile 16 und 17 des zapfenartig ausgebildeten Greifelements 13' wirkungsmäßig miteinander verbunden sind und unter Druckeinwirkung über die Rollmembran 11 den oberen Bereich der Hülse 21 gegen das Widerlager 15 drücken und die Hülse damit erfassen.Fig. 2 shows the bobbin gripping device in the active position, in which the two detachable parts 16 and 17 of the pin-shaped gripping element 13 'are operatively connected to one another and pressurize the upper region of the sleeve 21 against the abutment 15 and the sleeve via the roller membrane 11 capture with it.

In Fig. 3 ist dargestellt, wie nach Einwirkung auf ein Hindernis eine Trennung des beweglichen Gehäuseteils 6 von dem am Längsträger 2 befestigten Gehäuseteil 5 erfolgt, nämlich indem das Gegenrastelement 10 des beweglichen Gehäuseteils 6 aus dem Rastelement 9 des Gehäuseteils 5 ausgeklinkt ist. Hier erfolgt eine Trennung der beiden Teile 16 und 17 des zapfenartigen Greifelements 13', wobei das Teil 16 an dem Gehäuseteil verbleibt und das Teil 17 gemeinsam mit dem Gehäuseteil 6 abgetrennt wird. Hier findet eine Feder 35 Anwendung, welche sich einerseits am vorderen Abschluß des Kegelstumpfbereichs 14' abstützt und andererseits an einer Platte 36, welche zugleich als Kupplungsteil für den stirnseitigen Abschluß des Teils 16 des zapfenartig ausgebildeten Greifelements 13' ausgebildet sein kann.In Fig. 3 it is shown how, after acting on an obstacle, the movable housing part 6 is separated from the housing part 5 fastened to the side member 2, namely by the counter-latching element 10 of the movable housing part 6 being released from the latching element 9 of the housing part 5. Here, the two parts 16 and 17 of the pin-like gripping element 13 'are separated, the part 16 remaining on the housing part and the part 17 being separated together with the housing part 6. Here, a spring 35 is used, which is supported on the one hand on the front end of the truncated cone region 14 'and on the other hand on a plate 36, which can also be designed as a coupling part for the front end of the part 16 of the pin-shaped gripping element 13'.

Bei der Ausführungsform nach Fig. 4 und 5 ist das bewegliche Gehäuseteil 6' über mindestens einen horizontalen Zapfen 18 schwenkbar an dem am Längsträger 2 befestigten Gehäuseteil 5 angeordnet und über ein Rastelement 25 in seiner Wirkstellung gehaltert.In the embodiment according to FIGS. 4 and 5, the movable housing part 6 'is pivotably arranged via at least one horizontal pin 18 on the housing part 5 fastened to the side member 2 and is held in its operative position by means of a locking element 25.

Aus Fig. 4 ist ersichtlich, daß hier das am Längsträger 2 befestigte Gehäuseteil 5 wiederum aus einem zylindrischen Bereich 8 und einem Kegelstumpfbereich 14 besteht. Das bewegliche Gehäuseteil 6' kann aus zwei gabelartig verlaufenden Armen 19 bestehen, welche im vorderen Bereich jeweils über einen Zapfen 18 an den zylindrischen Bereich 8 des Gehäuseteils 5 drehbar gelagert sind. Im Schnittbereich der beiden Gabelarme 19 sind der Aufnahmetrichter 20 und das Widerlager 15 angeordnet. Um das bewegliche Gehäuseteil 5 in seiner in Fig. 4 dargestellten Wirkstellung zu haltern, ist ein Rastelement 25 zwischen dem Gehäuseteil 5 und dem Gehäuseteil 6' vorgesehen, welches ausklinkt, sobald das bewegliche Gehäuseteil 6' z.B. von oben gegen ein Hindernis stößt. In diesem Fall schwenkt das bewegliche Gehäuseteil 6' um den Zapfen 18 im Gegenuhrzeigersinn, so daß keine Beschädigung des am Längsträger 2 befestigten Gehäuseteils 5 und damit der druckluftführenden Teile möglich ist.From Fig. 4 it can be seen that here the housing part 5 attached to the side member 2 in turn consists of a cylindrical region 8 and a truncated cone region 14. The movable housing part 6 'can consist of two fork-like arms 19 which are each rotatably supported in the front area by a pin 18 on the cylindrical area 8 of the housing part 5. In the intersection of the two fork arms 19, the receiving funnel 20 and the abutment 15 are arranged. In order to hold the movable housing part 5 in its operative position shown in Fig. 4, a locking element 25 is provided between the housing part 5 and the housing part 6 ', which disengages as soon as the movable housing part 6' e.g. hits an obstacle from above. In this case, the movable housing part 6 'pivots counterclockwise around the pin 18, so that no damage to the housing part 5 fastened to the side member 2 and thus to the compressed air-carrying parts is possible.

Bei der Ausführungsform nach Fig. 6 besteht wiederum das bewegliche Gehäuseteil 6' aus zwei Gabelarmen 23 und 23' in deren Schnittpunkt das Widerlager 15 und der Aufnahmetrichter 20 befestigt sind. Diese beiden Gabelarme 23 und 23' sind jeweils mit zwei Bolzen 26 und 26' ausgerüstet, wobei die Bolzen 26 in einer horizontalen Führung 27 des Gehäuseteils 5 gelagert und durch eine Feder 28 beaufschlagt und die Bolzen 26' in einer Gegenrastung 37 am festen Gehäuseteil 5 eingebettet sind.In the embodiment according to FIG. 6, the movable housing part 6 'again consists of two fork arms 23 and 23' in whose intersection the abutment 15 and the receiving funnel 20 are fastened. These two fork arms 23 and 23 'are each equipped with two bolts 26 and 26', the bolts 26 being mounted in a horizontal guide 27 of the housing part 5 and through a spring 28 is loaded and the bolts 26 'are embedded in a counter-latching 37 on the fixed housing part 5.

Trifft die Spulengreifvorrichtung 1 gemäß Fig. 6 gegen ein Hindernis, so schwenkt zunächst das bewegliche Gehäuseteil 6' mit seinen beiden Gabelarmen 23 um die Drehbolzen 26, dabei gleiten die Bolzen 26' aus ihren Gegenrastungen 37. Anschließend schieben die Federn 28 die Bolzen 26 aus den Führungen 27. Das bewegliche Gehäuseteil 6' mit den beiden Gabelarmen 23 ist dann nicht mehr geführt und gehaltert, sondern - analog der Bauform nach Fig. 1 bis 3 - vollkommen von dem am Längsträger 2 starr befestigten Gehäuseteil 5 getrennt.If the bobbin gripping device 1 meets an obstacle according to FIG. 6, the movable housing part 6 'first pivots with its two fork arms 23 around the pivot bolts 26, the bolts 26' sliding out of their counter-detents 37. The springs 28 then push the bolts 26 out the guides 27. The movable housing part 6 'with the two fork arms 23 is then no longer guided and held, but - analogously to the design according to FIGS. 1 to 3 - completely separated from the housing part 5 rigidly fastened to the side member 2.

Eine weitere Ausführungsform der Erfindung ist in Fig. 7 dargestellt, wobei die Spulengreifvorrichtung 1 aus einem am Längsträger 2 befestigten Gehäuseteil 5 besteht, innerhalb welchem ein Balg 29 gelagert ist. Das Gehäuseteil 6'' ist bei dieser Ausführungsform ebenfalls über Rastelemente 32 am Längsträger 2 befestigt und weist eine Lagerstelle 31 auf, in welcher ein Winkelhebel 30 drehbar gelagert ist. Hierbei weist dieser Winkelhebel 30 zwei Arme 38 und 39 auf, wobei der Arm 38 im Wirkbereich des Balgs 29 liegt und der Arm 39 endseitig mit dem zapfenartig ausgebildeten Greifelement 13 verbunden ist. Erfolgt nun ein Aufblähen des Balgs 29 über eine Druckluftleitung 40, so schwenkt der Hebel 30 um seinen Drehpunkt 31, wodurch über den Arm 38 und den Arm 39 das zapfenartig ausgebildete Greifelement 13 nach rechts bewegt wird und damit den oberen Bereich einer Hülse erfaßt und festhält.A further embodiment of the invention is shown in FIG. 7, wherein the bobbin gripping device 1 consists of a housing part 5 fastened to the side member 2, within which a bellows 29 is mounted. In this embodiment, the housing part 6 ″ is also fastened to the side member 2 via latching elements 32 and has a bearing point 31 in which an angle lever 30 is rotatably mounted. Here, this angle lever 30 has two arms 38 and 39, the arm 38 being in the effective area of the bellows 29 and the arm 39 being connected at the end to the pin-like gripping element 13. If the bellows 29 is now inflated via a compressed air line 40, the lever 30 pivots about its pivot point 31, as a result of which the pin-shaped gripping element 13 is moved to the right via the arm 38 and the arm 39 and thus grips and holds the upper region of a sleeve .

Auch bei dieser Ausführungsform liegt eine Trennung zwischen dem am Längsträger 2 befestigten Gehäuseteil 5 und dem Gehäuseteil 6'' vor, welches das zapfenartige Greifelement 13 lagert.In this embodiment too, there is a separation between the housing part 5 fastened to the longitudinal beam 2 and the housing part 6 ″, which supports the pin-like gripping element 13.

Allen Ausführungsformen der Erfindung ist gemeinsam, daß die beiden Gehäuseteile so geteilt sind, daß beim Abwerfen oder Abschwenken des beweglichen Gehäuseteils 6 bzw. 6' bzw. 6'' keine Undichtheit der druckluftbetätigbaren Teile entsteht. Damit ist in diesem Fall die volle Funktionsfähigkeit der Spulengreifvorrichtung auch nach Auftreffen auf ein Hindernis gesichert.It is common to all embodiments of the invention that the two housing parts are divided in such a way that when the movable housing part 6 or 6 'or 6''is thrown or pivoted away, none Leakage of the parts actuated by compressed air occurs. In this case, the full functionality of the coil gripping device is ensured even after hitting an obstacle.

Claims (13)

  1. A bobbin gripping device which is disposed on a longitudinal support (2) of an automatic bobbin changer on a ring spinning frame, wherein at least one part of the bobbin gripping device (1), which is actuated by compressed air, can be moved out of the bobbin gripping region under the effect of external force, characterised in that all parts (3) carrying compressed air of the pneumatic operating element (4) which actuates the bobbin gripping device (1) are rigidly secured to the longitudinal support (2) carrying the bobbin gripping device (1).
  2. A bobbin gripping device according to claim 1, characterised in that the bobbin gripping device (1) consists of a housing part (5) fixed to the longitudinal support (2) and of a mobile housing part (6), and that the parts carrying compressed air of the pneumatic operating element (4) are exclusively disposed in the fixed housing part (5).
  3. A bobbin gripping device according to claims 1 and 2, characterised in that the mobile housing part (6) is disposed on the housing part (5) fixed to the longitudinal support (2) via a catch connection (7).
  4. A bobbin gripping device according to claim 3, characterised in that the housing part (5) fixed to the longitudinal support (2) has a cylindrical region (8) with at least one catch element (9) in which a mating catch element (10) of the mobile housing part (6) engages.
  5. A bobbin gripping device according to claim 4, characterised in that a curled diaphragm (11), which can be acted upon by compressed air, is secured inside the cylindrical region of the housing part (5) fixed to the longitudinal support (2), which diaphragm has a base plate (12) attached to a gripping element (13) constructed in the form of a spigot.
  6. A bobbin gripping device according to claims 1 to 5, characterised in that a truncated cone region (14) is attached to the cylindrical region (8) of the housing part (5) fixed to the longitudinal support (2), the end face of which truncated cone region is provided with a bearing (15) for the gripping element (13).
  7. A bobbin gripping device according to claims 1 to 6, characterised in that the mobile housing part (6) surrounds the housing part (5) fixed to the longitudinal support (2) in the region of the fixed housing part remote from the longitudinal support (2) (Figure 1).
  8. A bobbin gripping device according to claims 1 to 5, characterised in that the gripping element (13') consists of two spigot parts (16, 17) which can be coupled to each other, one part (16) of which is mounted attached to the curled diaphragm (11) and the base plate (12) in the housing part (5) fixed to the longitudinal support (2), and the other part (17) of which is mounted in the mobile housing part (6) (Figure 2).
  9. A bobbin gripping device according to claim 1, characterised in that the mobile housing part (6') is disposed on the housing part (5) fixed to the longitudinal support (2) so that it can swivel via at least one horizontal spigot (18) and is held in its operating position via a catch element (Figures 4 and 5).
  10. A bobbin gripping device according to claim 9, characterised in that the mobile housing part (6') is of fork-like construction, wherein the bearing surface (15) for the gripping element (13) is mounted in the centre of the fork.
  11. A bobbin gripping device according to claims 9 and 10, characterised in that each fork arm (23, 23') has two pins (26, 26') disposed at a distance from each other, wherein one pin (26') is part of a catch element and the other pin (26) is mounted under spring pressure in a horizontal guide (27) on the housing part (5) fixed to the longitudinal support (2) (Figure 6).
  12. A bobbin gripping device according to claim 1, characterised in that the bobbin gripping device (1) consists of a housing part (5) fixed to the longitudinal support (2) and a mobile housing part (6''), wherein the mobile housing part (6'') is also secured to the longitudinal support (2).
  13. A bobbin gripping device according to claims 1 and 12, characterised in that a bellows (29) is mounted on the housing part (5) fixed to the longitudinal support (2), via which an actuating lever (30) can be acted upon, which actuating lever is attached to at least one gripping element (13) of the bobbin gripping device (1), and that the actuating lever (30) is mounted on the mobile housing part (6'') (Figure 7).
EP90106078A 1989-04-14 1990-03-29 Bobbin gripping device Expired - Lifetime EP0392279B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3912332A DE3912332A1 (en) 1989-04-14 1989-04-14 SPOOL GRIP DEVICE
DE3912332 1989-04-14

Publications (2)

Publication Number Publication Date
EP0392279A1 EP0392279A1 (en) 1990-10-17
EP0392279B1 true EP0392279B1 (en) 1993-06-23

Family

ID=6378705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106078A Expired - Lifetime EP0392279B1 (en) 1989-04-14 1990-03-29 Bobbin gripping device

Country Status (4)

Country Link
US (1) US5058372A (en)
EP (1) EP0392279B1 (en)
JP (1) JPH0768652B2 (en)
DE (2) DE3912332A1 (en)

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Publication number Priority date Publication date Assignee Title
US5172540A (en) * 1987-08-18 1992-12-22 Rieter Machine Works, Ltd. Apparatus for changing bobbin tubes and tube gripper therefor
DE4037312C2 (en) * 1990-11-23 1994-03-10 Zinser Textilmaschinen Gmbh Device for gripping an empty tube or a full spool
DE4115772C2 (en) * 1991-05-15 1994-10-20 Zinser Textilmaschinen Gmbh Device for automatic replacement of full bobbins for empty tubes on spinning machines
DE4117730A1 (en) * 1991-05-30 1992-12-03 Zinser Textilmaschinen Gmbh METHOD FOR REMOVING COILS AND FOR PLACING COIL SEALS ON SPINDLES ON A MACHINE SIDE OF A SPINDING OR TWINING MACHINE, AND DEVICE FOR CARRYING OUT THE METHOD
DE4122780A1 (en) * 1991-07-10 1993-01-14 Zinser Textilmaschinen Gmbh EXTERNAL GRIPPERS FOR GRIPPING FIBER YARN CARRIERS ON SPIDER OR TWIN MACHINES
DE4333179A1 (en) * 1993-09-29 1995-03-30 Lian Jia Ind Co Ltd Doffer device for a spinning machine
CH710323A1 (en) * 2014-11-03 2016-05-13 Rieter Ag Maschf Doffergreifer with zweigeteiltem housing.
DE102019128613A1 (en) * 2019-10-23 2021-04-29 Saurer Spinning Solutions Gmbh & Co. Kg Ring spinning machine and bobbin gripper

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DE1180285B (en) * 1962-04-18 1964-10-22 Eugen Maier C Pneumatic gripper for pulling devices on continuously working bobbin changers for spinning machines
DE1280107B (en) * 1963-07-04 1968-10-10 Deutscher Spinnereimaschb Ingo Method and device for the continuous withdrawal of bobbins on ring spinning and twisting machines
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
US3844099A (en) * 1972-09-13 1974-10-29 Toray Industries Method and apparatus for doffing full bobbins on textile machines such as draw-twister
CA961529A (en) * 1973-06-08 1975-01-21 Molson Companies Limited (The) Uncaser cup
JPS5647169Y2 (en) * 1979-02-10 1981-11-05
FR2466534A1 (en) * 1979-09-28 1981-04-10 Alsacienne Constr Meca DEVICE FOR GRIPPING WIRE SUPPORTS ON TEXTILE MACHINES WITH ROTARY PINS
SU1031868A1 (en) * 1982-03-04 1983-07-30 Проектно-Конструкторско-Технологическое Бюро С Опытным Производством Министерства Промышленного Строительства Бсср Load-engaging device
DD231815A1 (en) * 1984-08-13 1986-01-08 Textima Veb K GRIPPERS FOR REMOVING COPS
JPS6452827A (en) * 1987-08-18 1989-02-28 Rieter Ag Maschf Bobbin replacing apparatus in fiber machine such as ring fine spinning frame

Also Published As

Publication number Publication date
US5058372A (en) 1991-10-22
EP0392279A1 (en) 1990-10-17
DE3912332A1 (en) 1990-10-18
DE59001828D1 (en) 1993-07-29
JPH02289129A (en) 1990-11-29
JPH0768652B2 (en) 1995-07-26

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