Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
  • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
  • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
  • D01H4/10—Rotors

Definitions

• DE-A 38 15 182 discloses a spinning rotor known, in which the rotor pot with the rotor shaft via a Coupling assembly is connected.
• the clutch arrangement is either formed on the rotor pot or on the rotor shaft.
• this consists of two elastic hook, which when joining the rotor pot and rotor shaft into one Engage the undercut on the rotor pot. This undercut is in the form of a inclined surface formed.
• the hooks press as a result the centrifugal force on these inclined surfaces, whereby the pot of the spinning rotor in Direction on the rotor shaft is pulled, so that the connection between Rotor pot and rotor shaft is intensive and safe even when the spinning rotor is in operation.
• the clutch arrangement is on the rotor plate appropriate.
• the object of the present application is to address the disadvantages of the prior art to avoid and an open-end spinning device with a spinning rotor to propose that is simpler in construction and cheaper to manufacture.
• the present problem is solved by the features of claim 1.
• At least one receptacle of the coupling in the form of a Screw head which cooperates positively with the rotor pot, to train. This ensures that the rotor pot is securely fixed to the coupling reached. It is particularly favorable if the rotor pot has a central bore for this purpose possesses through which the coupling is passed so that they can with their screw head-shaped part pulls the rotor base against the carrier part. Especially It is advantageous if the locking body has inclined surfaces work together if they are so inclined that pressing the The locking body generates an axial force component as a result of the centrifugal force, whereby the rotor pot and the carrier part are pressed against each other.
• both the first recording of the clutch, which grips the rotor pot, with Locking bodies is formed, as well as the second receptacle, which the Support part captured. It is then particularly favorable for both opposing surfaces, both the on the rotor pot as well as on the carrier part, than against the axis of rotation of the rotor pot to form inclined surface in such a way that a force component caused by the locking body on these surfaces that rotor pot and Support part are pressed against each other. This makes a particularly high Speeds secure connection between the two parts achieved. In cheaper Design of the clutch, this has a handle or an approach for a Tool, e.g. B.
• a coupling point for coupling a trigger device so that the clutch can be easily removed to put the spinning rotor in its To dismantle components or to separate the coupling from the rotor pot.
• the puller used may change when removing the coupling on Support the rotor pot. This is particularly advantageous for open-end spinning devices, in which the support part from the storage of the spinning rotor is not readily available can be taken, e.g. B. in storage where the shaft of the spinning rotor is mounted by means of ball bearings.
• the Invention connects the clutch rotor pot and support part with each other in such a way that at the same time a form fit between the coupling to the rotor pot and the carrier part is created.
• This advantageously ensures that no relative movement in The circumferential direction takes place between the carrier part and the rotor pot. This is especially when accelerating the spinning rotor and when braking it to Standstill is important.
• the positive connection is made via the coupling, for which purpose this both with the rotor pot and with the carrier part in the circumferential direction of the Spinning rotor is positively connected.
• this is designed to achieve the same purpose that the The rotor pot is designed in relation to the carrier part in the circumferential direction so that both cannot twist with respect to each other.
• FIG. 1 shows an open-end spinning rotor 1 designed according to the invention, consisting of a rotor pot 11, a carrier part 12 and a coupling 2.
• the rotor pot 11 and the carrier part 12 are connected to one another via the coupling 2.
• the Clutch 2 is for this purpose through a bore 111 of the rotor pot 11 into the Support part 12 passed through.
• the coupling With their first recording 21, which is similar to a Screw head is formed, the coupling is supported on the bottom 110 of the Rotor pot 11.
• the second receptacle 22 of the coupling 2 engages the carrier part 12 via two locking bodies 25, which are designed as balls.
• the inclined Surface 3 is the lateral surface of a conically widened bore 121 of the Support part 12.
• the elastic element 26 is in the form of a rubber block formed, which is arranged between the locking bodies 25. in the In the assembled state shown in FIG. 1, the elastic element 26 is below Pressure and presses the locking body 25 outwards on the inclined surface 3, whereby the clutch 2 via the first receptacle 21 the rotor pot 11 in the direction pulls onto the carrier part 12.
• the rotor pot 11 For centering the rotor pot on the carrier part the rotor pot 11 has a centering surface 13 that forms the wall of the bore 110 corresponds to.
• the carrier part 12 also has a centering surface 14 that of the wall the bore 121 in its cylindrical part corresponds. They work for this Centering surfaces 13 and 14 together with the centering surface 27 of the coupling 2.
• the Centering surface 27 of clutch 2 corresponds to its cylindrical outer surface.
• the support part 12 of the spinning rotor 1 of Figure 1 is made of several parts composed. In particular, the part of the rotor pot 11 facing away from Support part 12 is used to store the spinning rotor 1 in a known manner and to drive.
• FIG. 2 shows a spinning rotor 1 which is mounted by means of a shaft 10.
• the Storage can be done in a known manner by supporting disks that are used for Example are arranged in two pairs or by direct storage of the Shank 10 via roller bearings or air bearings.
• the storage of the spinning rotor is in Not important to the present invention.
• the shaft 10 of the spinning rotor 1 of Figure 2 merges into the support part 12, the design of which like that of the Support part of Figure 1 is.
• the receptacle 21 of the coupling 2 has two holes 210, in which two mandrels of an extraction device, not shown, engage can to pull the coupling 2 out of the carrier part 12.
• the holes 210 form a coupling point for the trigger device, which is when pulling out the Coupling is supported against the bottom of the rotor pot 11, so that the removal of the Coupling without a load on the storage of the spinning rotor, such as. B. also train or Compressive forces, is possible.
• FIG. 3 shows a shaftless spinning rotor similar to that of FIG. 1.
• the clutch 2 has a second receptacle 22, which like that of Figure 1 with Locking bodies 25 is designed and over an inclined surface 3 of the Support part 12 cooperates with this.
• the first recording 21 is similar formed a screw head of a countersunk head screw. This has the advantage that the bottom 110 of the rotor pot 11 forms a flat surface which is below Certain circumstances can be advantageous for the spinning operation of the spinning rotor 1.
• the elastic element 26 consist here, unlike that of Figure 1, from a spring-loaded ball 260, which is pushed by the loading spring 261 towards the Locking body 25 is pressed so that it can also be used when the Put the spinning rotor on the inclined surface 3 and for a locking of Take care of the spinning rotor and rotor pot.
• the centering of the rotor pot on the carrier part at Figure 3 takes place over part of a conical surface 270 of the support part with which a corresponding centering surface 271 of the rotor pot 11 cooperates.
• the coupling 2 of FIG. 3 is shown enlarged in FIG.
• the Locking elements 25 are guided in transverse bores 250 and protrude this from the clutch 2 by the pressure of the elastic element 26 radially out.
• the lower edge 251 of the transverse bores is so in his Reduced diameter that the locking body 25 is not completely out of the Clutch 2 can emerge radially. This prevents the Locking elements can fall out of the coupling.
• the elastic Element 26 is seated in an axial bore 260 which, at its open end, has a Closure body 261 is closed, so that neither the elastic element 26 the locking body 25 can still fall out of the coupling 2.
• the Locking body 25 are in the representations of Figure 1 to Figure 4 as Balls formed, but can also act as cylinders or similar geometric bodies are formed.
• the clutch 2 can also be used as a be designed with a non-rotationally symmetrical part, e.g. with a square Cross-section.
• the openings in the rotor pot and support part are then trained accordingly.
• the same effect can also be achieved by that the contact surfaces between rotor pot 11 and support part 12 are designed so that a rotary movement relative to one another is not possible. It can do just as well Carrier part one or more pins inserted in the axial direction (not shown) that engage axially in the rotor pot to prevent twisting.

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

Applications Claiming Priority (4)

Publications (2)

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ID=26025417

Family Applications (1)

Country Status (4)

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Citations (5)

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• 1997
  • 1997-03-13 EP EP97104251A patent/EP0805224A3/fr not_active Withdrawn
  • 1997-04-17 CZ CZ19971171A patent/CZ288200B6/cs not_active IP Right Cessation
  • 1997-04-25 SK SK530-97A patent/SK53097A3/sk unknown
  • 1997-04-29 US US08/841,159 patent/US5832711A/en not_active Expired - Fee Related

Patent Citations (5)

Non-Patent Citations (1)

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