EP0523336A1 - External gripper for gripping yarn bobbins on spinning or twisting machines - Google Patents
External gripper for gripping yarn bobbins on spinning or twisting machines Download PDFInfo
- Publication number
- EP0523336A1 EP0523336A1 EP92107836A EP92107836A EP0523336A1 EP 0523336 A1 EP0523336 A1 EP 0523336A1 EP 92107836 A EP92107836 A EP 92107836A EP 92107836 A EP92107836 A EP 92107836A EP 0523336 A1 EP0523336 A1 EP 0523336A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holder
- external gripper
- elements
- releasable
- clamping
- 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.)
- Granted
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
- B65H67/064—Supplying or transporting cross-wound packages, also combined with transporting the empty core
- B65H67/065—Manipulators with gripping or holding means for transferring the packages from one station to another, e.g. from a conveyor to a creel trolley
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S294/00—Handling: hand and hoist-line implements
- Y10S294/902—Gripping element
Definitions
- the invention relates to an external gripper for gripping fiber yarn carriers on spinning or twisting machines, with an adjustable clamping element and a stationary clamping element, the clamping surfaces of which are aligned with a centering axis of a spindle or a pin for receiving the fiber yarn carrier.
- a cop pulling device is known (DE-AS 25 42 222), in which a stationary clamping element consists of a ring, the diameter of which is larger than the head sleeve diameter.
- a piston which can be moved radially in the direction of the axis of symmetry of the ring and which has a frontally arranged clamping surface forms the deliverable clamping element.
- the ring In the working position, the ring is guided over the cop until the desired clamping position is reached.
- the cop is then clamped by moving the piston between its clamping surface and the inside of the ring opposite the piston.
- a disk-shaped gripper device in which two gripper elements are integrated.
- Each gripper element has a vertical recess provided, which is approximately circular and on the circumference of which two stationary clamping elements are arranged offset by 120 °.
- the stationary clamping elements are assigned an adjustable clamping element which is offset by a further 120 ° and provided with a clamping surface and which is part of a pneumatically adjustable piston.
- the invention has for its object to provide an external gripper for gripping fiber yarn carriers on spinning or twisting machines, which allows sufficient centering of fiber yarn carriers with different diameters with little technical effort.
- a stationary clamping element is formed from a holder and a releasable element attachable thereto, that a set of releasable elements is provided, the fastening means assigned to the holder are the same in each case and the clamping surfaces are at different distances from a centering axis.
- an external gripper which makes it possible to clamp different nominal diameter ranges of fiber yarn carriers with an external gripper and to hold them in a centered position by assigning a corresponding detachable element to a specific nominal diameter range, which can be exchanged in a simple manner in the holder.
- the releasable elements are made of plastic, which enables inexpensive production of the releasable elements, for example by means of an injection molding process.
- the detachable elements can be provided in a corresponding color.
- the releasable element of the stationary clamping element has two flat clamping surfaces inclined to one another, whereby an exact centering of the fiber yarn carriers to be clamped is ensured.
- the holder of the stationary clamping element has a pocket-shaped receptacle for the releasable elements. With such a holder, a simple fastening possibility for the releasable element in the holder is created.
- the releasable element has an extension protruding from the holder, whereby identification of the releasable element used in the external gripper, e.g. by means of optical sensors, even in the operating state.
- the detachable elements of a nominal diameter range are of the same color to one another and differ from the detachable elements of another nominal diameter range by a different color. This provides an uncomplicated way of clearly identifying the detachable elements and assigning them to a specific nominal diameter range.
- the external gripper according to the invention shown in figures has a stationary and an deliverable clamping element (15), which can hold a fiber yarn carrier (1), in the exemplary embodiment a sleeve, between them and hold them in a clamping manner.
- the stationary clamping element is formed from a holder (2) integrated in the external gripper and a detachable element (3).
- the holder (2) has a pocket-shaped receptacle (4) into which the detachable element (3), as shown in FIG. 1, is inserted.
- the contour of the detachable element (3) on the holder side corresponds to the contour of the pocket-shaped receptacle (4).
- the detachable element (3) On the side facing the fiber yarn carrier (1), the detachable element (3) has two flat clamping surfaces (5) inclined to one another, which form an opening angle ( ⁇ ).
- the clamping surfaces (5) of the detachable element (3) are arranged symmetrically and parallel to the centering axis (6) of a spindle or a pin (not shown) for receiving the fiber yarn carrier (1).
- the pocket-shaped receptacle (4) has a vertical rib (7) on each of its side faces.
- the detachable element (3) has a stop (8) on both sides.
- a stop (9) in the holder (2) serves to position the detachable element (3) in the horizontal plane.
- one entry slope (10) which adjoins the lower ends of the clamping surfaces (5) and is inclined in the direction of the receptacle (4), serves both for centering the fiber yarn carrier (1) and for guiding against the clamping surfaces (5).
- this has a locking lug (11).
- the pocket-shaped receptacle (4) has a horizontal rib (12) which extends through the receptacle (4).
- the visible profile-like design of the detachable Element (3) makes this elastically deformable in the vertical direction, so that the locking lug (11) can engage behind the rib (12). This prevents the detachable element (3) locked in the holder (2) from sliding out.
- An extension (13) shown in FIG. 3 and protruding from the holder (1) serves to identify the detachable element (3) locked in the external gripper.
- a clamping element (15) which is pneumatically adjustable in the direction of the axis of symmetry (14) of the detachable element (3) is arranged opposite the stationary clamping element in such a way that it can be moved back into an initial position which allows the taking up of fiber yarn carriers (1) with a maximum diameter (see Fig. 3).
- a certain infeed area must still be present in order to ensure that the outer gripper runs securely onto the fiber thread carrier (1).
- FIGS. 1 and 3 relate to a detachable element (3) for the nominal diameter range 26 to 28 mm.
- An opening angle ( ⁇ ) of 90 ° was chosen for the arrangement of the prismatic surfaces (5).
- the design-related fixed distance between the centering axis (6) and the pocket base (16) is 34 mm in the exemplary embodiment.
- releasable elements (3) can be inserted into the holder (2) in order to clamp fiber thread carriers (1) of different nominal diameter ranges with a single external gripper.
- the elements (3) differ either by different distances (a) between the intersection of the clamping surfaces (5) and the pocket base (16) of the receptacle (4) or due to different opening angles ( ⁇ ).
- a variation between the distance (a) and the opening angle ( ⁇ ) is also within the scope of the invention.
- a reduction in the distance (a) with a constant opening angle ( ⁇ ) results in an increase in the clampable nominal diameter range.
- a corresponding increase in the distance (a) means a reduction in the clampable nominal diameter range.
- An increase in the opening angle ( ⁇ ) with a constant distance (a) results in an increase in the clampable nominal diameter range.
- a corresponding reduction in the distance (a) means a reduction in the clampable nominal diameter range.
- the variation of the position of the clamping surfaces (5) can be carried out on the holder side in such a way that reaching behind the rib (7) is still ensured by the stop (8) and the fiber yarn carrier (1) in the clamping position on the clamping surfaces (5) and not on the Ribs (7) abuts.
- FIG. 2 shows an exemplary embodiment for receiving fiber yarn carriers (1) with a maximum diameter.
- the in Fig. 2 shown external gripper differs from the external gripper according to FIGS. 1 and 3 essentially in that the releasable element (3 ') has clamping surfaces (5') which are at a greater distance from the centering axis (6) (not shown) ) Have a spindle as the clamping surfaces (5) of the detachable element (3). Due to this increased distance between the clamping surfaces, the outer gripper fiber yarn carrier (1) with max. Grip diameter without the gripper central axis migrating with respect to the centering axis (6) of the spindle.
- the detachable element (3 ') is fixed on the holder (2) in principle in the same way as in the embodiment shown in FIG. 1.
- the latching lug (11) can engage behind the rib (12), thereby preventing the detachable element (3, 3') from emerging vertically from the holder (2).
- the external gripper In the operating state, the external gripper is guided over the end of the fiber yarn carrier (1, 1 ')).
- the inlet slope (10) is placed on the edge of the fiber yarn carrier (1, 1 '), whereby this is centered and guided against the surfaces (5, 5').
- the deliverable clamping element (15) is then fed in and the fiber yarn carrier (1, 1 ')) is clamped, as a result of which it can be removed from the spindle (not shown in the drawing) or placed on a pin.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
Abstract
Description
Die Erfindung betrifft einen Außengreifer zum Greifen von Fasergarnträgern an Spinn- oder Zwirnmaschinen, mit einem zustellbaren Klemmelement und einem stationären Klemmelement, dessen Klemmflächen zu einer Zentrierachse einer Spindel oder eines Zapfens zur Aufnahme des Fasergarnträgers ausgerichtet sind.The invention relates to an external gripper for gripping fiber yarn carriers on spinning or twisting machines, with an adjustable clamping element and a stationary clamping element, the clamping surfaces of which are aligned with a centering axis of a spindle or a pin for receiving the fiber yarn carrier.
Es ist eine Kopsabziehvorrichtung bekannt (DE-AS 25 42 222), bei der ein stationäres Klemmelement aus einem Ring besteht, dessen Durchmesser größer als der Kopshülsendurchmesser ist. Ein radial in Richtung der Symmetrieachse des Ringes bewegbarer Kolben mit einer frontal angeordneten Klemmfläche bildet das zustellbare Klemmelement. In Arbeitsstellung wird der Ring über den Kops geführt, bis die gewünschte Klemmposition erreicht ist. Anschließend wird der Kops durch Zustellen des Kolbens zwischen dessen Klemmfläche und der dem Kolben gegenüberliegenden Innenseite des Ringes geklemmt.A cop pulling device is known (DE-AS 25 42 222), in which a stationary clamping element consists of a ring, the diameter of which is larger than the head sleeve diameter. A piston which can be moved radially in the direction of the axis of symmetry of the ring and which has a frontally arranged clamping surface forms the deliverable clamping element. In the working position, the ring is guided over the cop until the desired clamping position is reached. The cop is then clamped by moving the piston between its clamping surface and the inside of the ring opposite the piston.
Nach der DE-OS 36 40 002 ist eine scheibenförmige Greifervorrichtung bekannt, in die zwei Greiferelemente integriert sind. Jedes Greiferelement ist dabei mit einer vertikalen Ausnehmung versehen, die etwa kreisförmig ausgebildet ist und an deren Umfang zwei um 120° versetzte stationäre Klemmelemente angeordnet sind. Den stationären Klemmelementen ist ein um weitere 120° versetztes, mit einer Klemmfläche versehenes zustellbares Klemmelement zugeordnet, welches Bestandteil eines pneumatisch verstellbaren Kolbens ist. Beim Erfassen des Fasergarnträgers wird das zustellbare Klemmelement in Richtung des sich in der Ausnehmung befindlichen Fasergarnträgers bewegt und dieser zwischen den stationären Klemmelementen und der zustellbaren Klemmfläche des Klemmelementes geklemmt.According to DE-OS 36 40 002, a disk-shaped gripper device is known, in which two gripper elements are integrated. Each gripper element has a vertical recess provided, which is approximately circular and on the circumference of which two stationary clamping elements are arranged offset by 120 °. The stationary clamping elements are assigned an adjustable clamping element which is offset by a further 120 ° and provided with a clamping surface and which is part of a pneumatically adjustable piston. When the fiber yarn carrier is gripped, the deliverable clamping element is moved in the direction of the fiber yarn carrier located in the recess and the latter is clamped between the stationary clamping elements and the deliverable clamping surface of the clamping element.
Der Erfindung liegt die Aufgabe zugrunde, einen Außengreifer zum Greifen von Fasergarnträgern an Spinn- oder Zwirnmaschinen zu schaffen, der bei geringem technischen Aufwand eine ausreichende Zentrierung von Fasergarnträgern mit unterschiedlichen Durchmessern erlaubt.The invention has for its object to provide an external gripper for gripping fiber yarn carriers on spinning or twisting machines, which allows sufficient centering of fiber yarn carriers with different diameters with little technical effort.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß ein stationäres Klemmelement aus einem Halter und einem daran anbringbaren, lösbaren Element gebildet ist, daß ein Satz lösbarer Elemente vorgesehen ist, deren dem Halter zugeordnete Befestigungsmittel jeweils gleich sind und dessen Klemmflächen unterschiedliche Abstände zu einer Zentrierachse aufweisen.According to the invention the object is achieved in that a stationary clamping element is formed from a holder and a releasable element attachable thereto, that a set of releasable elements is provided, the fastening means assigned to the holder are the same in each case and the clamping surfaces are at different distances from a centering axis.
Mit der erfindungsgemäßen Lösung wird ein Außengreifer geschaffen, der es ermöglicht, unterschiedliche Nenndurchmesserbereiche von Fasergarnträgern mit einem Außengreifer zu klemmen und in einer zentrierten Position zu halten, indem einem konkreten Nenndurchmesserbereich ein entsprechendes lösbares Element zugeordnet ist, welches auf einfache Weise im Halter austauschbar ist.With the solution according to the invention, an external gripper is created which makes it possible to clamp different nominal diameter ranges of fiber yarn carriers with an external gripper and to hold them in a centered position by assigning a corresponding detachable element to a specific nominal diameter range, which can be exchanged in a simple manner in the holder.
Bei einer vorteilhaften Ausgestaltung der Erfindung bestehen die lösbaren Elemente aus Kunststoff, wodurch eine kostengünstige Herstellung der lösbaren Elemente, zum Beispiel mittels Spritzgießverfahren ermöglicht wird. Durch Verwendung farbiger Plastgranulate können die lösbaren Elemente entsprechend farbig bereitgestellt werden.In an advantageous embodiment of the invention, the releasable elements are made of plastic, which enables inexpensive production of the releasable elements, for example by means of an injection molding process. By using colored plastic granules, the detachable elements can be provided in a corresponding color.
Bei einer weiteren vorteilhaften Ausgestaltung der Erfindung weist das lösbare Element des stationären Klemmelementes zwei ebene zueinander geneigte Klemmflächen auf, wodurch eine exakte Zentrierung der zu klemmenden Fasergarnträger gewährleistet ist.In a further advantageous embodiment of the invention, the releasable element of the stationary clamping element has two flat clamping surfaces inclined to one another, whereby an exact centering of the fiber yarn carriers to be clamped is ensured.
In einer weiteren Ausgestaltung der Erfindung wird vorgesehen, daß der Halter des stationären Klemmelementes eine taschenförmige Aufnahme für die lösbaren Elemente aufweist. Mit einem derartigen Halter wird eine einfache Befestigungsmöglichkeit für das lösbare Element im Halter geschaffen.In a further embodiment of the invention it is provided that the holder of the stationary clamping element has a pocket-shaped receptacle for the releasable elements. With such a holder, a simple fastening possibility for the releasable element in the holder is created.
In weiterer Ausgestaltung der Erfindung weist das lösbare Element einen aus dem Halter herausragenden Fortsatz auf, wodurch eine Identifikation des im Außengreifer eingesetzten lösbaren Elementes, z.B. mittels optischer Sensoren, auch im Betriebszustand ermöglicht wird.In a further embodiment of the invention, the releasable element has an extension protruding from the holder, whereby identification of the releasable element used in the external gripper, e.g. by means of optical sensors, even in the operating state.
In weiterer Ausgestaltung der Erfindung wird vorgesehen, daß die lösbaren Elemente eines Nenndurchmesserbereiches untereinander gleichfarbig sind und sich von den lösbaren Elementen eines anderen Nenndurchmesserbereiches durch eine unterschiedliche Farbe unterscheiden. Dadurch ist eine unkomplizierte Möglichkeit gegeben, die lösbaren Elemente eindeutig zu kennzeichnen und einem konkreten Nenndurchmesserbereich zuzuordnen.In a further embodiment of the invention it is provided that the detachable elements of a nominal diameter range are of the same color to one another and differ from the detachable elements of another nominal diameter range by a different color. This provides an uncomplicated way of clearly identifying the detachable elements and assigning them to a specific nominal diameter range.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben.Embodiments of the invention are shown in the drawing and are described in more detail below.
Es zeigen:
- Fig. 1
- eine teilweise geschnittene Draufsicht auf einen erfindungsgemäßen Außengreifer mit einem geklemmten Fasergarnträger (Schnitt I-I der Fig. 3),
- Fig. 2
- eine andere Ausführungsform in einer ähnlichen Darstellung wie Fig. 1 und
- Fig. 3
- den Schnitt längs der Linie III-III gemäß Fig. 1.
- Fig. 1
- 3 shows a partially sectioned plan view of an external gripper according to the invention with a clamped fiber yarn carrier (section II of FIG. 3)
- Fig. 2
- another embodiment in a similar representation as Fig. 1 and
- Fig. 3
- the section along the line III-III of FIG. 1st
Der in Figuren dargestellte erfindungsgemäße Außengreifer weist ein stationäres und ein zustellbares Klemmelement (15) auf, die einen Fasergarnträger (1), im Ausführungsbeispiel eine Hülse, zwischen sich aufnehmen und klemmend festhalten können.The external gripper according to the invention shown in figures has a stationary and an deliverable clamping element (15), which can hold a fiber yarn carrier (1), in the exemplary embodiment a sleeve, between them and hold them in a clamping manner.
Das stationäre Klemmelement wird aus einem im Außengreifer integrierten Halter (2) und einem lösbaren Element (3) gebildet. Der Halter (2) besitzt eine taschenförmige Aufnahme (4), in die das lösbare Element (3), wie in Fig. 1 dargestellt, eingesetzt ist. Die halterseitige Kontur des lösbaren Elementes (3) korrespondiert mit der Kontur der taschenförmigen Aufnahme (4). Auf der der dem Fasergarnträger (1) zugewandte Seite weist das lösbare Element (3) zwei ebene zueinander geneigte Klemmflächen (5) auf, die einen Öffnungswinkel (α) bilden. Die Klemmflächen (5) des lösbaren Elementes (3) sind symmetrisch und parallel zu der Zentrierachse (6) einer nicht dargestellten Spindel oder eines Zapfens zur Aufnahme des Fasergarnträgers (1) angeordnet.The stationary clamping element is formed from a holder (2) integrated in the external gripper and a detachable element (3). The holder (2) has a pocket-shaped receptacle (4) into which the detachable element (3), as shown in FIG. 1, is inserted. The contour of the detachable element (3) on the holder side corresponds to the contour of the pocket-shaped receptacle (4). On the side facing the fiber yarn carrier (1), the detachable element (3) has two flat clamping surfaces (5) inclined to one another, which form an opening angle (α). The clamping surfaces (5) of the detachable element (3) are arranged symmetrically and parallel to the centering axis (6) of a spindle or a pin (not shown) for receiving the fiber yarn carrier (1).
Die taschenförmige Aufnahme (4) besitzt an ihren Seitenflächen jeweils eine vertikale Rippe (7). Korrespondierend dazu besitzt das lösbare Element (3) beidseitig jeweils einen Anschlag (8). Ein Anschlag (9) im Halter (2) dient der Positionierung des lösbaren Elementes (3) in der horizontalen Ebene. Jeweils eine, sich an die unteren Enden der Klemmflächen (5) anschließende, in Richtung der Aufnahme (4) geneigte Einlaufschräge (10) dient sowohl der Zentrierung des Fasergarnträgers (1) als auch der Führung gegen die Klemmflächen (5). Am halterseitigen Ende der Einlaufschräge (10) weist diese eine Rastnase (11) auf. Korrespondierend dazu besitzt die taschenförmige Aufnahme (4) eine horizontale, die Aufnahme (4) durchziehende Rippe (12). Die in der Zeichnung ersichtliche profilartige Ausbildung des lösbaren Elementes (3) macht dieses in vertikaler Richtung elastisch verformbar, so daß die Rastnase (11) die Rippe (12) hintergreifen kann. Dadurch wird ein Herausgleiten des im Halter (2) arretierten, lösbaren Elementes (3) verhindert.The pocket-shaped receptacle (4) has a vertical rib (7) on each of its side faces. Correspondingly, the detachable element (3) has a stop (8) on both sides. A stop (9) in the holder (2) serves to position the detachable element (3) in the horizontal plane. In each case one entry slope (10), which adjoins the lower ends of the clamping surfaces (5) and is inclined in the direction of the receptacle (4), serves both for centering the fiber yarn carrier (1) and for guiding against the clamping surfaces (5). At the holder end of the run-in slope (10), this has a locking lug (11). Correspondingly, the pocket-shaped receptacle (4) has a horizontal rib (12) which extends through the receptacle (4). The visible profile-like design of the detachable Element (3) makes this elastically deformable in the vertical direction, so that the locking lug (11) can engage behind the rib (12). This prevents the detachable element (3) locked in the holder (2) from sliding out.
Ein in Fig. 3 dargestellter aus dem Halter (1) herausragender Fortsatz (13) dient der Identifikation des im Außengreifer arretierten lösbaren Elementes (3).An extension (13) shown in FIG. 3 and protruding from the holder (1) serves to identify the detachable element (3) locked in the external gripper.
Ein in Richtung der Symmetrieachse (14) des lösbaren Elementes (3) pneumatisch zustellbares Klemmelement (15) ist dem stationären Klemmelement gegenüberliegend derart angeordnet, daß es in eine Ausgangsposition zurückfahrbar ist, die das Aufnehmen von Fasergarnträgern (1) mit maximalem Durchmesser gestattet (siehe Fig. 3). Bei zu klemmenden Fasergarnträgern (1) mit maximalem Durchmesser muß jedoch noch ein gewisser Zustellbereich vorhanden sein, um ein sicheres Einlaufen des Außengreifers auf den Fasergarnträger (1) zu gewährleisten.A clamping element (15) which is pneumatically adjustable in the direction of the axis of symmetry (14) of the detachable element (3) is arranged opposite the stationary clamping element in such a way that it can be moved back into an initial position which allows the taking up of fiber yarn carriers (1) with a maximum diameter (see Fig. 3). In the case of fiber thread carriers (1) with a maximum diameter to be clamped, however, a certain infeed area must still be present in order to ensure that the outer gripper runs securely onto the fiber thread carrier (1).
Das in Fig. 1 und 3 dargestellte Ausführungsbeispiel bezieht sich auf ein lösbares Element (3) für den Nenndurchmesserbereich 26 bis 28 mm. Für die Anordnung der prismatischen Flächen (5) wurde ein Öffnungswinkel (α) von 90° gewählt. Der konstruktionsbedingte feststehende Abstand zwischen der Zentrierachse (6) und dem Taschengrund (16) beträgt im Ausführungsbeispiel 34 mm. Unter Zugrundelegung eines mittleren Nenndurchmessers von 27 mm ergibt sich dabei ein Abstand (a) von≈15 mm zwischen dem Schnittpunkt der verlängerten ebenen zueinander geneigten Flächen (5) und dem Taschengrund (16).The embodiment shown in FIGS. 1 and 3 relates to a detachable element (3) for the nominal diameter range 26 to 28 mm. An opening angle (α) of 90 ° was chosen for the arrangement of the prismatic surfaces (5). The design-related fixed distance between the centering axis (6) and the pocket base (16) is 34 mm in the exemplary embodiment. On the basis of an average nominal diameter of 27 mm, there is a distance (a) of ≈15 mm between the intersection of the elongated flat surfaces (5) and the pocket base (16).
Um Fasergarnträger (1) verschiedener Nenndurchmesserbereiche mit einem einzigen Außengreifer zu klemmen, können verschiedenartige lösbarer Elemente (3) in den Halter (2) eingesetzt werden. Die Elemente (3) unterscheiden sich entweder durch unterschiedliche Abstände (a) zwischen dem Schnittpunkt der Klemmflächen (5) und dem Taschengrund (16) der Aufnahme (4) oder durch unterschiedliche Öffnungswinkel (α). Auch eine Variation zwischen dem Abstand (a) und dem Öffnungswinkel (α) liegt im Bereich der Erfindung.Various types of releasable elements (3) can be inserted into the holder (2) in order to clamp fiber thread carriers (1) of different nominal diameter ranges with a single external gripper. The elements (3) differ either by different distances (a) between the intersection of the clamping surfaces (5) and the pocket base (16) of the receptacle (4) or due to different opening angles (α). A variation between the distance (a) and the opening angle (α) is also within the scope of the invention.
Aus einer Verringerung des Abstandes (a) bei gleichbleibendem Öffnungswinkel (α) resultiert eine Vergrößerung des klemmbaren Nenndurchmesserbereiches. Eine entsprechende Vergrößerung des Abstandes (a) bedeutet eine Verkleinerung des klemmbaren Nenndurchmesserbereiches.A reduction in the distance (a) with a constant opening angle (α) results in an increase in the clampable nominal diameter range. A corresponding increase in the distance (a) means a reduction in the clampable nominal diameter range.
Aus einer Vergrößerung des Öffnungswinkels (α) bei gleichbleibendem Abstand (a) resultiert eine Vergrößerung des klemmbaren Nenndurchmesserbereiches. Eine entsprechende Verkleinerung des Abstandes (a) bedeutet eine Verkleinerung des klemmbaren Nenndurchmesserbereiches.An increase in the opening angle (α) with a constant distance (a) results in an increase in the clampable nominal diameter range. A corresponding reduction in the distance (a) means a reduction in the clampable nominal diameter range.
Auch bei einer Variation von Öffnungswinkel (α) und Abstand (a) ergibt sich, daß aus einer Vergrößerung des Öffnungswinkels (α) bei gleichzeitiger Verkleinerung des Abstandes (a) eine Vergrößerung des klemmbaren Nenndurchmesserbereiches und aus einer Verkleinerung des Öffnungswinkels (α) bei gleichzeitiger Vergrößerung des Abstandes (a) ein kleinerer klemmbarer Nenndurchmesserbereich resultiert. Bei Mischvarianten, wie z.B. Vergrößerung des Öffnungswinkels (α) gleichzeitig mit einer Vergrößerung des Abstandes (a) richtet sich der resultierende klemmbare Nenndurchmesserbereich nach der erheblicheren Veränderung entsprechend dem vorstehend beschriebenen.Even with a variation of the opening angle (α) and distance (a) it follows that increasing the opening angle (α) while simultaneously reducing the distance (a) increases the clampable nominal diameter range and decreasing the opening angle (α) while simultaneously Increasing the distance (a) results in a smaller clampable nominal diameter range. For mixed variants, such as Increasing the opening angle (α) at the same time as increasing the distance (a), the resulting clampable nominal diameter range depends on the more significant change corresponding to that described above.
Die Variation der Position der Klemmflächen (5) kann halterseitig maximal derart erfolgen, daß ein Hintergreifen der Rippe (7) durch den Anschlag (8) noch gewährleistet ist und der Fasergarnträger (1) in Klemmposition an den Klemmflächen (5) und nicht an den Rippen (7) anliegt.The variation of the position of the clamping surfaces (5) can be carried out on the holder side in such a way that reaching behind the rib (7) is still ensured by the stop (8) and the fiber yarn carrier (1) in the clamping position on the clamping surfaces (5) and not on the Ribs (7) abuts.
In Fig. 2 ist ein Ausführungsbeispiel zur Aufnahme von Fasergarnträgern (1) mit maximalem Durchmesser dargestellt. Der in Fig. 2 dargestellte Außengreifer unterscheidet sich von dem Außengreifer gemäß der Fig. 1 und 3 im wesentlichen dadurch, daß das lösbare Elemente (3') Klemmflächen (5') besitzt, die einen größeren Abstand von der Zentrierachse (6) einer (nicht dargestellten) Spindel aufweisen als die Klemmflächen (5) des lösbaren Elementes (3). Durch diesen vergrößerten Abstand der Klemmflächen kann der Außengreifer Fasergarnträger (1) mit max. Durchmesser greifen, ohne daß die Greifermittelachse in bezug auf die Zentrierachse (6) der Spindel auswandert. Die Festlegung des lösbaren Elementes (3') an dem Halter (2) erfolgt in prinzipiell gleicher Weise wie bei dem in Fig. 1 dargestellten Ausführungsbeispiel.2 shows an exemplary embodiment for receiving fiber yarn carriers (1) with a maximum diameter. The in Fig. 2 shown external gripper differs from the external gripper according to FIGS. 1 and 3 essentially in that the releasable element (3 ') has clamping surfaces (5') which are at a greater distance from the centering axis (6) (not shown) ) Have a spindle as the clamping surfaces (5) of the detachable element (3). Due to this increased distance between the clamping surfaces, the outer gripper fiber yarn carrier (1) with max. Grip diameter without the gripper central axis migrating with respect to the centering axis (6) of the spindle. The detachable element (3 ') is fixed on the holder (2) in principle in the same way as in the embodiment shown in FIG. 1.
Bei der Montage des lösbaren Elementes (3, 3') im Halter (2) wird ein Fortsatz (13) des lösbaren Elementes (3, 3') in eine mit diesem korrespondierende Aufnahme des Halters (2) eingesetzt und das lösbare Element (3, 3') gegen den Anschlag (9) eingeschoben. Während des Einschubs wird das lösbare Element (3, 3') durch die Rippen (7) geführt und positioniert.When the detachable element (3, 3 ') is installed in the holder (2), an extension (13) of the detachable element (3, 3') is inserted into a receptacle of the holder (2) corresponding thereto and the detachable element (3 , 3 ') inserted against the stop (9). During the insertion, the detachable element (3, 3 ') is guided and positioned by the ribs (7).
Aufgrund der Elastizität des lösbaren Elementes (3, 3') kann dessen Rastnase (11) die Rippe (12) hintergreifen, wodurch ein vertikales Austreten des lösbaren Elementes (3, 3') aus dem Halter (2) verhindert wird.Due to the elasticity of the detachable element (3, 3 '), the latching lug (11) can engage behind the rib (12), thereby preventing the detachable element (3, 3') from emerging vertically from the holder (2).
Im Betriebszustand wird der Außengreifer über das Ende der Fasergarnträger (1, 1')) geführt. Die Einlaufschräge (10) setzt dabei auf den Rand des Fasergarnträgers (1, 1') auf, wodurch dieser zentriert und gegen die Flächen (5, 5') geführt wird. Anschließend wird das zustellbare Klemmelement (15) zugestellt und dadurch der Fasergarnträger (1, 1')) geklemmt, wodurch dieser von der in der Zeichnung nicht dargestellten Spindel abziehbar oder auf einen Zapfen aufsetzbar ist.In the operating state, the external gripper is guided over the end of the fiber yarn carrier (1, 1 ')). The inlet slope (10) is placed on the edge of the fiber yarn carrier (1, 1 '), whereby this is centered and guided against the surfaces (5, 5'). The deliverable clamping element (15) is then fed in and the fiber yarn carrier (1, 1 ')) is clamped, as a result of which it can be removed from the spindle (not shown in the drawing) or placed on a pin.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4122780A DE4122780A1 (en) | 1991-07-10 | 1991-07-10 | EXTERNAL GRIPPERS FOR GRIPPING FIBER YARN CARRIERS ON SPIDER OR TWIN MACHINES |
| DE4122780 | 1991-07-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0523336A1 true EP0523336A1 (en) | 1993-01-20 |
| EP0523336B1 EP0523336B1 (en) | 1996-04-17 |
Family
ID=6435804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92107836A Expired - Lifetime EP0523336B1 (en) | 1991-07-10 | 1992-05-09 | External gripper for gripping yarn bobbins on spinning or twisting machines |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5275453A (en) |
| EP (1) | EP0523336B1 (en) |
| JP (1) | JP3193773B2 (en) |
| DE (2) | DE4122780A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215707A (en) * | 2013-04-15 | 2013-07-24 | 常州市同和纺织机械制造有限公司 | Roving bobbin inserting structure of automatic doffing roving machine |
| EP3812328A1 (en) * | 2019-10-23 | 2021-04-28 | Saurer Spinning Solutions GmbH & Co. KG | Ring spinning machine and bobbin gripper |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH710261A1 (en) * | 2014-10-16 | 2016-04-29 | Rieter Ag Maschf | Mounting for a Doffergreifer. |
| CH719902A1 (en) | 2022-07-18 | 2024-01-31 | Rieter Ag Maschf | Method for operating a ring spinning machine, maintenance device for a ring spinning machine and ring spinning machine. |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2531283B1 (en) * | 1975-07-03 | 1976-06-16 | Schweiter Ag Maschf | Device for the individual transport of spinning cops on a winding machine |
| DE2542222B2 (en) * | 1975-01-09 | 1980-01-17 | Edera Officina Meccanica Tessile S.P.A., Mailand (Italien) | Cop puller for spinning and twisting machines |
| GB2042601A (en) * | 1979-02-10 | 1980-09-24 | Toyoda Automatic Loom Works | Bobbing holding devices for doffing and donning apparatuses |
| DE3518906A1 (en) * | 1985-05-25 | 1986-11-27 | W. Schlafhorst & Co, 4050 Mönchengladbach | HEAD TRANSPORT DEVICE |
| DE3640002A1 (en) * | 1986-11-22 | 1988-05-26 | Zinser Textilmaschinen Gmbh | METHOD AND DEVICE FOR THE AUTOMATIC SIMULTANEOUSLY REMOVAL OF COILS AND THE FOLLOWING SIMULTANEOUSLY PLACING SLEEVES ON SPINDLES OF A SPINDING OR TWINING MACHINE |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US713189A (en) * | 1902-04-16 | 1902-11-11 | Thomas J Yates | Pipe-vise. |
| US1070049A (en) * | 1912-04-06 | 1913-08-12 | Frank Machava | Vise. |
| US1283217A (en) * | 1916-03-15 | 1918-10-29 | Henry G Kurtzhals | Pipe-tongs. |
| US2284449A (en) * | 1939-08-23 | 1942-05-26 | Samuel C Rodess | Vise jaw attachment |
| US2814222A (en) * | 1956-07-16 | 1957-11-26 | Emmitt G Sanders | Ferrule crimping pliers with replaceable jaws |
| US2958556A (en) * | 1959-04-07 | 1960-11-01 | Samuelson Le Roy | Bottle take-out jaws |
| US3403901A (en) * | 1965-09-02 | 1968-10-01 | Servadio Robert | Screw clamp |
| US4036001A (en) * | 1975-03-31 | 1977-07-19 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Method and apparatus for doffing and donning bobbins in spinning machine |
| DE2722689C2 (en) * | 1977-05-18 | 1983-02-03 | Alfred Ing.(grad.) 8160 Miesbach Kinshofer | Clamshell grab that cannot be fitted with a gripper |
| DD158096A1 (en) * | 1981-05-07 | 1982-12-29 | Valentin Tener | GRIPPER BAKING FOR FEEDING ROBOT |
| DD203341A1 (en) * | 1982-04-01 | 1983-10-19 | Textilmaschinenbau Grossenhain | HOLLOWING GRIP WITH SELF-TOLERANCE |
| DD231815A1 (en) * | 1984-08-13 | 1986-01-08 | Textima Veb K | GRIPPERS FOR REMOVING COPS |
| US4681210A (en) * | 1984-08-23 | 1987-07-21 | Kabushiki Kaisha Komatsu Seisakusho | Apparatus for feeding bars through a bending or like processing station |
| DE3912332A1 (en) * | 1989-04-14 | 1990-10-18 | Zinser Textilmaschinen Gmbh | SPOOL GRIP DEVICE |
-
1991
- 1991-07-10 DE DE4122780A patent/DE4122780A1/en active Granted
-
1992
- 1992-05-09 EP EP92107836A patent/EP0523336B1/en not_active Expired - Lifetime
- 1992-05-09 DE DE59206000T patent/DE59206000D1/en not_active Expired - Fee Related
- 1992-07-01 JP JP17450592A patent/JP3193773B2/en not_active Expired - Fee Related
- 1992-07-08 US US07/910,614 patent/US5275453A/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2542222B2 (en) * | 1975-01-09 | 1980-01-17 | Edera Officina Meccanica Tessile S.P.A., Mailand (Italien) | Cop puller for spinning and twisting machines |
| DE2531283B1 (en) * | 1975-07-03 | 1976-06-16 | Schweiter Ag Maschf | Device for the individual transport of spinning cops on a winding machine |
| GB2042601A (en) * | 1979-02-10 | 1980-09-24 | Toyoda Automatic Loom Works | Bobbing holding devices for doffing and donning apparatuses |
| DE3518906A1 (en) * | 1985-05-25 | 1986-11-27 | W. Schlafhorst & Co, 4050 Mönchengladbach | HEAD TRANSPORT DEVICE |
| DE3640002A1 (en) * | 1986-11-22 | 1988-05-26 | Zinser Textilmaschinen Gmbh | METHOD AND DEVICE FOR THE AUTOMATIC SIMULTANEOUSLY REMOVAL OF COILS AND THE FOLLOWING SIMULTANEOUSLY PLACING SLEEVES ON SPINDLES OF A SPINDING OR TWINING MACHINE |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215707A (en) * | 2013-04-15 | 2013-07-24 | 常州市同和纺织机械制造有限公司 | Roving bobbin inserting structure of automatic doffing roving machine |
| CN103215707B (en) * | 2013-04-15 | 2016-03-23 | 常州市同和纺织机械制造有限公司 | The flyer bobbin plug-in mounting structure of automatic doffing roving frame |
| EP3812328A1 (en) * | 2019-10-23 | 2021-04-28 | Saurer Spinning Solutions GmbH & Co. KG | Ring spinning machine and bobbin gripper |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05195343A (en) | 1993-08-03 |
| JP3193773B2 (en) | 2001-07-30 |
| EP0523336B1 (en) | 1996-04-17 |
| US5275453A (en) | 1994-01-04 |
| DE4122780C2 (en) | 1993-04-08 |
| DE4122780A1 (en) | 1993-01-14 |
| DE59206000D1 (en) | 1996-05-23 |
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