EP3578700B1 - Verfahren zum einstellen einer axialen position eines rotorantriebs, rotorspinnvorrichtung und spinnmaschine - Google Patents

Verfahren zum einstellen einer axialen position eines rotorantriebs, rotorspinnvorrichtung und spinnmaschine Download PDF

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Publication number
EP3578700B1
EP3578700B1 EP19173538.0A EP19173538A EP3578700B1 EP 3578700 B1 EP3578700 B1 EP 3578700B1 EP 19173538 A EP19173538 A EP 19173538A EP 3578700 B1 EP3578700 B1 EP 3578700B1
Authority
EP
European Patent Office
Prior art keywords
rotor
drive
spinning
support
cover element
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.)
Active
Application number
EP19173538.0A
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German (de)
English (en)
French (fr)
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EP3578700A3 (de
EP3578700A2 (de
Inventor
Markus Kübler
Siegfried Krohmer
Bernd Loos
Matthias Lauer
Constantin RIEGER
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.)
Rieter Ingolstadt GmbH
Original Assignee
Rieter Ingolstadt GmbH
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Publication date
Application filed by Rieter Ingolstadt GmbH filed Critical Rieter Ingolstadt GmbH
Publication of EP3578700A2 publication Critical patent/EP3578700A2/de
Publication of EP3578700A3 publication Critical patent/EP3578700A3/de
Application granted granted Critical
Publication of EP3578700B1 publication Critical patent/EP3578700B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01H4/12—Rotor bearings; Arrangements for driving or stopping
    • D01H4/14—Rotor driven by an electric motor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering devices
    • 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
    • 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
    • D01H4/12—Rotor bearings; Arrangements for driving or stopping

Definitions

  • the present invention relates to a method for adjusting an axial position of a drive of a spinning rotor of a rotor spinning device in relation to a cover element of the rotor spinning device, wherein the spinning rotor has a shaft and a rotor pot arranged on it, which the drive of the spinning rotor rotates about its axis and wherein the rotor pot is arranged in a rotor housing which is closed by the cover element and the drive is mounted on a carrier of the rotor spinning device.
  • the invention further relates to a rotor spinning device of a spinning machine, with a spinning rotor which has a shaft and a rotor pot arranged thereon, with a drive for rotating the spinning rotor about its axis and wherein the rotor pot is arranged in a rotor housing which is closed by a removable cover element and the drive is mounted on a carrier of the rotor spinning device, as well as a spinning machine with a large number of such rotor spinning devices, a setting gauge for carrying out the setting process and a sensor for carrying out the setting process.
  • an open-end spinning device with a spinning rotor that can be driven by a single motor is known, the rotor cup of which rotates in a rotor housing that can be subjected to negative pressure and which can be closed by a cover element during the spinning process.
  • the rotor housing is designed as a central component that can be fixed to the machine frame of a textile machine, to which both the drive of the spinning rotor and the carrier for a cover element having a sliver opening device are connectable.
  • the disadvantage of this open-end spinning device is that the assembly and adjustment process is very complex. The stability of the device is crucially dependent on the rotor housing, which is why it has to be made very solid.
  • the drive of the spinning rotor can only be exchanged from the rear, so that the rotor housing must first be dismantled from the carriers in order to be able to exchange the drive.
  • the DE 10 2005 023 517 A1 discloses an open-end spinning device with a spinning rotor, the rotor cup of which rotates during the spinning operation at high speed in a rotor housing that can be subjected to negative pressure.
  • the rotor housing can be closed by a cover element, with an attachment having the mouth of a fiber guide channel being positioned inside the rotor cup of the spinning rotor when the cover element is closed.
  • a positioning device ensures that, after a thread break, the attachment having the opening of the fiber guide channel is positioned at a distance from the rotor cup of the spinning rotor. An exact and adjustable positioning of the drive of the spinning rotor for the spinning operation is not disclosed.
  • the DE 10 2014 001 627 A1 relates to an open-end rotor spinning device with a rotor housing in which a spinning rotor can be arranged and a pivotable cover element for closing the rotor housing.
  • a measuring coil and a measuring element are arranged in such a way that the measured values of the measuring coil change due to a relative movement between the rotor housing and the cover element.
  • the position of the spinning rotor can only be determined indirectly. An exact position of the rotor drive is assumed, but not measured.
  • the DE 10 2005 062 196 A1 describes an open-end spinning rotor for a textile machine producing cross-wound bobbins with a rotor shaft rotatably supported by a magnetic bearing arrangement and a rotor cup which has a has a front rotor opening, a fiber slide wall extending from the rotor opening, a so-called rotor groove and a rotor base with an integrally formed connecting collar.
  • the rotor cup can be connected to the rotor shaft in a non-rotatable manner via a connection shaft that can be fixed in the connection collar and can be easily detached if necessary.
  • Nothing is disclosed about the suitability of the rotor cup as a setting gauge for the position of the rotor cup drive.
  • the object of the present invention is therefore to create an open-end spinning device which is easy to assemble and maintain, and in which, in particular, the replacement and positioning of the drive can be carried out quickly and easily.
  • the spinning rotor has a shaft and a rotor pot arranged thereon.
  • the drive turns the spinning rotor around its axis.
  • the rotor pot is arranged in a rotor housing which is closed by the cover element. During the spinning operation, there is negative pressure in the rotor housing, but this can be turned off if necessary.
  • the setting of the axial position of the drive of the spinning rotor is usually carried out without negative pressure.
  • the drive is mounted on a carrier of the rotor spinning device.
  • the shaft of the spinning rotor is connected to an adjusting gauge for adjusting an axial position of its drive.
  • a mechanical or electronic measuring head preferably a sensor, is arranged on the carrier or on the cover element.
  • the distance between the setting gauge and the measuring head is measured and, according to the measured distance, the axial position of the drive in the carrier is changed until the distance corresponds to a predetermined target value. Then the position of the drive in Fixed in relation to the carrier. Because the sensor and the setting gauge are arranged on the shaft and cover element components arranged in the rotor spinning device, they are able to measure the actual distance between the measuring head and the rotor shaft. This distance is in turn representative of the distance between the cover element and the rotor pot that they have during the spinning operation.
  • the setting gauge is arranged on the shaft of the spinning rotor and the measuring head or the sensor is located in a defined position.
  • This defined position can be in the cover element or on the carrier. If the cover element is moved into the closed position, this corresponds to the position of the cover element in the spinning mode. In this position, the measurement is carried out when the measuring head is fastened in the cover element and a value is obtained which is representative of the position of the corresponding components in the spinning operation.
  • the measuring head can also be arranged on the carrier, in particular when the thread take-off nozzle is again also in a defined position relative to the carrier.
  • the measurement can be carried out particularly quickly and easily and is therefore suitable for being carried out in a very time-saving and yet precise manner after replacing the rotor drive, and without the use of special assembly devices.
  • the rotor drive can thus be exchanged and readjusted directly on the spinning device. It is not necessary to dismantle the entire spinning device from the spinning machine. It is particularly advantageous if, during the measurement, the shaft is put into a floating state, in particular also into a rotary movement, by the drive.
  • the floating condition which corresponds to the condition of the shaft during the spinning operation, enables a very good measurement.
  • the measurement made here is therefore representative of the position of the rotor in relation to the cover element during the spinning operation.
  • the measurement takes place without the mounted rotor housing, there is enough space to arrange the setting gauge and the measuring head or sensor on the rotor shaft or the cover element. Since the measurement can be carried out without a negative pressure which is applied to the rotor housing, it can be carried out without any problems without the rotor housing.
  • the setting gauge is the rotor pot inserted into the shaft or the setting gauge inserted into the shaft instead of the rotor pot and / or the measuring head or sensor instead of an adapter, which can be provided for adaptation to different rotor diameters, in the cover element is inserted or attached to the carrier or frame.
  • the rotor pot and the shaft are detachably connected to one another. If the setting gauge is thus arranged on the shaft instead of the rotor pot, it offers a defined position against which the sensor can measure the distance. The measured distance corresponds to the rotor pot used later during the spinning operation.
  • the measuring head or sensor can be inserted into the cover element, but alternatively also be fastened to the carrier or frame.
  • the measuring head or sensor is used in the cover element instead of the adapter.
  • the adapter is advantageous in order to enable adaptation to different rotor pot diameters which are used in the spinning device.
  • the feeding of fibers, which takes place via the cover element and through the adapter, can thus be optimally adapted to the corresponding rotor diameter.
  • This adapter which is arranged interchangeably in the cover element, can be removed from the cover element for the measurement and replaced by the measuring head or sensor.
  • the sensor advantageously has a shape which corresponds to the adapter or its fastening elements for fastening in the cover element. If the cover element is closed, the measuring head or sensor is seated instead of the adapter in a position corresponding to the spinning position and can measure the distance to the setting gauge, which is also arranged on the rotor shaft as a representative of the rotor pot. Constant differences in distance between the rotor pot and adapter compared to the setting gauge and measuring head or sensor can be taken into account during the measurement.
  • the axial position of the drive is preferably fixed with a screw. After the drive has been correctly positioned and fixed in the predetermined position, this screw is preferably sealed in order to avoid inadvertent loosening. The position of the drive is thus fixed for the spinning operation and only needs to be released again to replace the drive.
  • the cover element is aligned with respect to the carrier in such a way that the adapter with a thread withdrawal nozzle arranged therein is axially aligned with the rotor pot, the setting is optimal for spinning operation.
  • a drive ensures the rotation of the spinning rotor around its axis.
  • the rotor pot is arranged in a rotor housing that is closed by a removable cover element.
  • the drive preferably with its housing, is releasably attached to a carrier of the spinning device.
  • the carrier is designed in relation to the drive in such a way that the drive can be removed in the axial direction towards the rotor pot or can be inserted towards the shaft.
  • the drive can thus be removed from the carrier and reassembled very easily.
  • the drive which is fastened directly to the carrier in particular via the housing of the drive, is therefore stable and arranged in a defined position in the spinning device. There are no other interposed components between the drive and the carrier that would create additional tolerances or instabilities. As a result, the drive is very reliable, quiet in operation and, above all, very easy to assemble and disassemble in the spinning device.
  • the carrier when the carrier is arranged transversely to the axis of the spinning rotor is particularly advantageous. This creates a particularly simple and stable attachment of the drive to the carrier.
  • the carrier can be arranged below, to the side and / or above the spinning rotor.
  • the carrier is a frame which has an opening through which the drive can be removed in the axial direction towards the rotor pot or inserted towards the shaft.
  • the drive is thus attached to or in the frame.
  • the drive can be removed or inserted from the frame through the opening in the frame. It is therefore not necessary to dismantle the frame from the rotor spinning device.
  • the drive can be dismantled and changed independently without major assembly work having to be carried out.
  • the rotor spinning device can be made very inherently stable as a result.
  • the frame ensures that important add-on parts can be accommodated without their position having to be readjusted when the drive is removed.
  • the assembly or disassembly work can be carried out from the front, that is to say from the side of the cover element or the rotor housing.
  • the drive is moved transversely to the carrier or through the frame. While the drive in the mounted position is arranged at the rear, that is, from the perspective of an operator standing in front of the spinning device installed in the spinning machine, essentially behind the carrier or the frame, it is for dismantling to the front, i.e. towards the Operator, or for assembly to the rear, ie away from the operator, while at the same time an opening in the framework contract can remain free through which the drive can be removed from the spinning device and re-installed in it.
  • the drive can be positioned in a stable manner on the carrier or in the frame.
  • the drive lies in the shell and can be safely positioned there. This is used in particular for a first, provisional arrangement of the drive on the carrier or in the frame, from which the exact positioning and subsequent fixation of the drive on the carrier or in the frame can take place.
  • a groove is advantageously arranged on the carrier or in the frame, in particular in the receiving shell, which, for the rotational alignment of the drive, corresponds to a tongue of the housing of the drive.
  • the groove serves to accommodate the spring of the drive housing. This brings about a first rough positioning of the drive in relation to the carrier or frame.
  • the tongue and groove also serve to ensure that the drive can be properly positioned with respect to its rotational alignment with respect to the carrier or frame. To do this, the drive with the tongue is pushed into the groove.
  • the tongue and groove connection thus creates a form-fitting connection between the drive and the frame, which can in particular absorb torques that can arise when the drive is started up or when it is braked.
  • the tongue and groove connection can also be provided the other way round, that is to say that the groove is arranged on the drive and the tongue is arranged on the carrier or the frame.
  • the drive or the housing of the drive is preferably screwed onto the receiving shell. This creates a stable and, above all, easily releasable connection between the drive housing and the receiving shell. In addition, this makes it particularly easy to set the drive in the axial direction.
  • a housing for a controller is arranged on the drive or the housing of the drive.
  • the control can also be removed from the frame or from the carrier in a particularly simple manner. This enables a very simple exchange of not only the drive but also the control if one of the two elements should be defective. Further dismantling of permanently attached parts of the spinning device is not necessary. Only the removal of the rotor pot and the rotor housing may be necessary. However, this does not require dismantling in the actual sense, since these parts can easily be removed from the spinning device even in normal everyday spinning, for example for cleaning purposes.
  • the opening in the frame is designed in such a way that, in addition to the drive, the housing for the control can also be removed forwards, i.e. in the direction of the rotor pot . Drives and controls can thus be exchanged in a particularly simple manner.
  • the cover element in particular releasably, is rotatably and / or displaceably mounted in a bearing on the carrier or the frame.
  • the cover element can thus be arranged in a precisely positioned manner on the carrier or the frame. A centering of the cover element in relation to the carrier or frame and thus also in relation to the drive and the rotor can thus be carried out very easily without complex adjustment work.
  • the cover element can be moved in the pivot bearing in order to allow easy access to the rotor pot in the spinning operation.
  • the cover element can be pivoted into an open or closed position. This makes it possible to simply exchange the rotor pot in the open position or to carry out cleaning work on the rotor pot. If the entire cover element is to be removed from the frame, it is particularly advantageous if the bearing is designed in such a way that it can be removed from the bearing and thus from the frame by lateral displacement.
  • the cover element has a receiving opening for a detachable and exchangeable adapter for adaptation to different rotor diameters
  • the cover element can be used very flexibly and variably.
  • the cover element can be used for different rotor diameters.
  • a corresponding adapter is inserted into the cover element in order to optimally equip the intended rotor diameter for the spinning operation.
  • the receiving opening for the adapter in the cover element can simultaneously accommodate and attach a Serving measuring head or sensor, which can be provided to adjust the position of the drive.
  • a drive of an opening device and / or an opening device itself is preferably arranged on the cover element. This results in a compact design for the spinning device, which also enables easy access to the opening device or its drive.
  • an opening for the drive of the opening device is arranged in the frame.
  • the opening device can be built very close to the frame, since the drive can protrude through the frame.
  • a pivoting device for the cover element is arranged on the carrier, in particular on the frame, then it is possible for the cover element to be opened and closed automatically, by means of a motor. By attaching this swivel device to the frame, a compact design of the entire rotor spinning device is made possible.
  • a positioning device for the cover element is arranged on the carrier, in particular on the frame.
  • the positioning device is preferably a cam or a cam guide.
  • the positioning device for the cover element makes it possible that the cover element can also be closed without the rotor housing and is thus in the same position as if the rotor housing were arranged. This makes it easier for the measuring head or sensor to be arranged on the cover element and thus to deliver values which are representative of the spinning operation.
  • the positioning device also ensures that the cover element is in relation is always in the same position on the carrier, even after frequent opening and closing, and so that the thread withdrawal nozzle is correctly aligned with the rotor.
  • the carrier or the frame is furthermore suitable for all essential components of the spinning device to be positioned on the frame.
  • the rotor housing can in this case, for example, be spread in projections and spring elements, all or some of them being arranged on the carrier or frame and thus with regard to the carrier or the frame and thus also with regard to the drive of the spinning rotor and the Cover element be exactly positioned.
  • a spinning machine has a plurality of rotor spinning devices each arranged in a section wall of the spinning machine.
  • Each of the rotor spinning devices has a spinning rotor which has a shaft and a rotor pot arranged on it, as well as a drive for the spinning rotor.
  • the rotor pot is arranged in a rotor housing which is closed by a removable cover element.
  • openings are provided on the section wall, on which supports, in particular frames of the spinning devices, are arranged, in particular releasably fastened.
  • Each of the supports or frames corresponds to one of the openings in the section wall, so that the drive can be removed in the direction of the rotor pot or inserted in the direction of the rotor shaft.
  • the drive can thus be mounted and dismantled through the opening in the section wall and across the frame or carrier. Removal of the carrier or
  • the frame from the section wall is not necessary.
  • the drive By attaching the drive to the carrier or frame, it can be attached and adjusted with very precise positioning.
  • the adjustment of the drive can be done largely independently of manufacturing tolerances of the section wall or of the carrier or frame.
  • the drive and thus the rotor shaft and the rotor pot are aligned with respect to the cover element, which is particularly important for spinning operations in order to be able to spin a high-quality yarn. It is also possible that adjustment work and the exchange of drives can be carried out very quickly and easily without the need for highly specialized personnel. Further adjustment devices, which can only be brought into effect outside of the spinning machine, are also not required.
  • the setting of the position of the rotor drive can take place in the spinning machine or in the spinning device.
  • the carrier or frame can thus be roughly positioned.
  • the exact setting takes place between the rotor drive and the cover element, which are both arranged or at least positioned on the carrier or frame.
  • a displacement of the carrier or frame on the section wall would not change the setting between the drive and the cover element.
  • the frame has an opening which corresponds to one of the openings in the section wall and through which the drive can be removed in the direction of the rotor pot or inserted in the direction of the rotor shaft.
  • the drive can thus be assembled and disassembled through the opening in the section wall and the opening in the frame.
  • the setting gauge has a pin which is suitable for receiving in an axial bore in the rotor shaft. It also has a measuring surface which is used to measure the distance between this measuring surface and a measuring head or sensor. This measuring area is representative of the rotor pot that will later be arranged at this point.
  • the setting gauge is preferably a pin with a flattened head as a measuring surface.
  • a rotor pot with a base can also be used as a measuring surface.
  • the setting gauge which is a conventional rotor pot itself or a standardized rotor pot manufactured as precisely as possible, can also be used to measure the distance.
  • the setting gauge has drivers which ensure a non-rotatable connection with the shaft.
  • This advantageous embodiment is used for an exact measurement of the position of the drive or of the rotor shaft in relation to the cover element.
  • the drivers can be designed like the drivers of the rotor pot.
  • a measuring head in particular a sensor for carrying out the method, has receiving elements which are suitable for receiving in the receiving opening of the cover element for a detachable and exchangeable adapter.
  • the receiving elements thus essentially correspond to a fastening device for the adapter on the cover element.
  • These receiving elements can be tabs which hook into openings in the cover element.
  • the measuring head can have centering surfaces which center it in the receiving opening of the cover element center. The position of the measuring head thus corresponds to the position of the adapter in the cover element and hereby simulates the assembly of the spinning device as it is present during the spinning operation.
  • a particular advantage of the invention is that the carrier, a traverse or the frame, forms the base according to which the cover element and the motor align.
  • the receiving shell for the motor, the positioning device, in particular a stop cam and receiving bores for the bearing of the cover element are machined in one set-up so that the axes of the thread take-off nozzle in the cover element and the motor in the receiving shell when the cover element is closed Align the rotor spinning device and form a line.
  • the cover element is received in the pivot points of the bearing in the frame, the cross member or the carrier and is supported on the positioning device, which is preferably designed as a conical stop cam.
  • This positioning device or the stop cam specifies the pivoting position of the closed cover element and aligns it axially into the correct position.
  • the cover element is centered in the axial position by the positioning device or the stop cam and fixed at the pivoting angle.
  • the rotor plate must be aligned as precisely as possible in the axial direction of the thread take-off nozzle.
  • the position of the thread withdrawal nozzle depends on the position of the cover element in which it is arranged. Therefore, the rotor motor is moved axially to the cover element in the receiving shell and brought into the correct position.
  • the axial position of the rotor can be determined mechanically or electronically.
  • the measuring head or the sensor can be received in a receiving holder which is aligned on the carrier or frame.
  • the measuring head is advantageously integrated in a plate which is fixed in place of the adapter in the cover element.
  • a sensor which is, for example, a laser measuring head working according to the triangulation principle. With this measurement signal, the rotor motor can be brought into the correct axial position and fixed accordingly.
  • FIG. 1 shows the plan view of a spinning machine 1 in a schematic representation.
  • the spinning machine 1 has a drive frame 2 and an end frame 3.
  • Several sections 4 are arranged between the drive frame 2 and the end frame 3.
  • Between two sections 4 feet 5 are arranged, which serve to support the spinning machine 1 on a hall floor.
  • a section wall 6 is arranged between two feet 5.
  • a plurality of rotor spinning devices 7 on both sides of the spinning machine 1 are attached to the section walls 6.
  • FIG. 2 shows a section through a rotor spinning device 7 and a section wall 6.
  • the spinning device 7 protrudes through this opening 8 of the section wall 6.
  • the spinning device 7 is fastened by means of a frame 9 which is arranged on the section wall 6.
  • a plurality of units of the rotor spinning device 7 are fastened to the frame 9.
  • the frame 9 carries the drive 10 of a spinning rotor 11, the drive 10 being screwed to the frame 9 via a housing 12.
  • a cover element 13 is rotatably attached to the frame 9.
  • a rotor housing 14 is clamped to the frame 9 between the cover element 13 and the drive 10.
  • the drive 10 lies with its housing 12 on a receiving shell 15 of the frame 9. This enables the drive 10 to be roughly positioned.
  • a screw 16 is provided which presses the housing 12 onto the receiving shell 15 of the frame 9.
  • a groove 17 is provided, which is located in the receiving shell 15.
  • a tongue 18, which is arranged on the housing 12 of the drive 10 corresponds to the groove 17.
  • the drive 10 is thus on the shell 15 and is located in an opening 19 of the frame 9.
  • the drive 10 is located in the opening 8 of the section wall 6, since both the opening 8 of the section wall 6 and the opening 19 of the frame 9 correspond to one another when the frame 9 is properly installed on the section wall 6.
  • the spinning rotor 11 comprises a shaft 20 and a rotor pot 21 which is detachably attached to the shaft 20.
  • the shaft 20 and the rotor pot 21 can be set in rotary motion by means of an electric motor 22 of the drive 10.
  • the rotor pot 21 is non-rotatably connected to the shaft 20 with a connecting device 23. However, it can be removed from the shaft 20 in the direction of an axis A.
  • the spinning rotor 11 and the rotor pot 21 are arranged in the rotor housing 14, which is subjected to negative pressure during the spinning operation.
  • the rotor housing 14 is held in a holder 24 which is located on an arm 25 of the frame 9.
  • a spring element 26 acts on the rotor housing 14, which is fastened to the frame 9. The spring element 26 clamps the rotor housing 14 in such a way that it is pressed into the holder 24 and against the frame 9.
  • the cover element 13 is fastened to the arm 25 of the frame 9 in a swivel joint.
  • the cover element 13 can in the double arrow direction in one Bearing 27 can be pivoted.
  • the pivoting can take place manually, but it is also possible that a pivoting device, which operates pneumatically or electrically, takes over the opening and closing of the cover element 13.
  • An opening device 28 and its drive 29 are arranged in the cover element 13.
  • the opening device 28 dissolves a fed, not shown sliver into individual fibers and guides them in a channel arranged in the cover element 13, but not shown for reasons of clarity, to an adapter 30, which is also arranged in the cover element 13 and in the Rotor pot 21 opens.
  • the adapter 30 is held in the cover element 13 in an easily exchangeable manner. This makes it possible to insert different adapters 30 optionally into the cover element 13 in order to be able to adapt to different diameters of the rotor pot 21 used.
  • a thread withdrawal nozzle 44 is arranged in the adapter 30, through which the thread generated in the rotor pot 21 is withdrawn from the spinning device 7. The thread withdrawal nozzle 44 must be arranged concentrically with respect to the axis A to the rotor pot 21 for a good spinning result.
  • a positioning device 31 for the cover element 13 is provided so that the cover element 13 and thus the adapter 30 and the thread withdrawal nozzle 44 are correctly positioned in relation to the rotor pot 21.
  • the positioning device 31 can be a stop which is arranged on the cover element 13 and interacts with the arm 25.
  • the positioning device 31 can be permanently set. However, it is also possible for an adjustable stop to be provided, which is adapted to a predetermined dimension or a predetermined position of the cover element 13 depending on requirements and possibly manufacturing tolerances.
  • the positioning device 31 can alternatively also be provided on the cross member 37 or at another point on the carrier 38 in order to interact with the cover element 13 to be able to.
  • the positioning device 31 is preferably designed in the form of a conical cam in order to bring about a centering in relation to the axis A and to establish the pivoting angle of the cover element 13.
  • connection 23 between the shaft 20 and the rotor pot 21 is designed in such a way that an axial bore 32 of the shaft 20 receives a pin 33 of the rotor pot 21.
  • a driver 34 is provided which forms a form fit between the rotor pot 21 and the shaft 20 in the circumferential direction.
  • the connection 23 also ensures that the rotor pot 21 is in a defined axial position in relation to the shaft 20.
  • a control 35 is arranged on the drive 10.
  • the control 35 can be provided for the drive 10 or also for the complete spinning device 7. It is connected to the drive 10 and can be moved through a corresponding opening 8 of the section wall 6 as well as through the opening 19 of the frame 9 easily possible.
  • the cover element 13 is opened and, if necessary, the rotor housing 14 is removed.
  • the drive 10 with the housing of the controller 35 arranged thereon is pushed onto the receiving shell 15 in the axial direction R1, towards the shaft 20, from a front side V to a rear side R.
  • the spring 18 engages in the groove 17 of the frame 9 or the receiving shell 15.
  • the cover element 13 is again opened, the rotor housing 14 removed and the drive 10 moved in the direction of the rotor pot 21, in the direction R2, from the rear side R to the front side V of the spinning device 7 after the screw 16 has been loosened .
  • the installation and removal of the drive 10 can thus be carried out very easily.
  • the opening 8 of the section wall 6 is also designed in such a way that the drive 29 of the opening device 28 can protrude through the opening 8. Unlike here in Figure 2 As shown, it is thus possible that either a larger drive 29 of the opening device 28 is selected, or that further components are attached to the drive 29 and can protrude through the opening 8. In the case of a different construction, it is also possible for the cover element to be attached closer to the section wall 6 and for the drive 29 to protrude through the opening 8 as a result.
  • FIG 3 a front view of the frame 9 is shown. From this illustration it can be seen that the frame 9 has the opening 19 in which the drive 10 as well as the control 35 can be accommodated or passed through.
  • the frame 9 is fastened with fastenings 36 to the section wall 6 (not shown here).
  • On the frame 9 on the arms 25 are the holders 24 for the rotor housing 14 ( Figure 2 ) arranged.
  • the spring elements 26 are arranged, with which the rotor housing 14 can be clamped.
  • the bearing 27, in which the cover element 13 can be suspended and rotated, is arranged on the frame 9. For this purpose, the cover element 13 can also be moved linearly in the axial direction of the bearing 27 and thus removed from the bearing.
  • the housing 12 of the drive 10 is inserted in the receiving shell 15.
  • the housing 12 is provided with the spring 18 which protrudes into the groove 17 of the frame 9.
  • the final position of the drive 10 is fixed with the screw 16.
  • the frame 9 is designed here in such a way that it has a cross member 37 on which the receiving shell 15 is arranged.
  • the traverse 37 bridges the opening 8 of the section wall 6 and forms a stable support for the drive 10.
  • the traverse 37 can, however, alternatively also be arranged laterally or above the drive 10.
  • FIG Figure 4 a simplified embodiment of the attachment of the drive 10 is shown.
  • the fastening is according to FIG Figure 4 carried out only with a carrier 38.
  • the carrier 38 like the frame 9, is provided with a traverse 37 on which the tongue 18 of the housing 12 of the drive 10 can be received in the groove 17. It is fixed by means of the screw 16, which clamps the drive 10 on the cross member 37.
  • the drive 10 is located in the receiving shell 15.
  • the carrier 38 is fastened to the section wall 6 by means of the fastening 36.
  • a holder 24 for the rotor housing 14 is arranged on each of two arms 25 on the carrier 38.
  • the carrier 38 can only be removed from the crossbeam 37 or even only one fastening element, in particular with a receiving shell 15, which is arranged for the drive 10 on the section wall 6, exist.
  • the arms 25 can then also be screwed separately to the section wall 6 or otherwise fastened.
  • the spring elements 26 are arranged on the section wall 6. The rotor housing 14 can thus be clamped in a precisely positioned manner between the holders 24 and the spring elements 26.
  • the attachment of these individual parts is just as possible as the use of the frame 9 described.
  • the frame 9 or at least the carrier 38 are the preferred designs because they are particularly easy to assemble.
  • the opening 8 of the section wall 6 is in turn designed in such a way that the drive 10 and the control 35 protrude through and thus simply forward, in the direction of the viewer Figure 4 , can be taken.
  • FIG 5 the front view of a section wall 6 with feet 5 is shown.
  • the section wall 6 has four openings 8, into each of which a spinning device 7 can be inserted.
  • Figure 5 shows four different stages of the assembly of a spinning device 7. Starting from right to left, only the opening 8 of the section wall 6 can be seen at first.
  • fastening holes 43 are shown, to which the frame 9 or the carrier 38 will later be attached.
  • the frame 9 is installed around the opening 8.
  • the frame 9 surrounds part of the opening 8, so that the opening 8 corresponds to the opening 19 of the frame 9. This creates a common opening into which the rotor drive 10 can be inserted.
  • the lower part of the opening 8 can be seen below the cross member 37, which can be provided for supply lines and / or for the drive 29 of the opening device 28.
  • the drive 10 and the controller 35 are inserted into the frame 9.
  • the drive 10 is screwed to the cross member 37 of the frame 9 with the screw 16. Both the drive 10 and the control 35 can be moved through the two openings 8 and 19.
  • Figure 6 is a cut similar to the Figure 2 represented by the spinning device 7.
  • Figure 6 shows the setting of the position of the drive 10 in relation to the cover element 13.
  • the rotor housing 14 has been removed for this purpose.
  • a setting gauge 39 is inserted into the shaft 20.
  • the cover element 13 instead of the adapter 30, there is now a measuring head or a sensor 40, for example a laser measuring head.
  • the sensor 40 is inserted into a receiving opening 42 of the cover element 13, which is provided for the adapter 30 and the thread withdrawal nozzle 44.
  • the sensor 40 is now able to measure a distance L between the sensor 40 and the setting gauge 39.
  • the measuring head can also be arranged on the cross member 37, the carrier 38 or the arm 25.
  • the measuring head can, for example, also be designed mechanically, in particular in the form of a button with a measuring display.
  • the drive 10 can be moved in the double arrow direction P for the correct position. If this distance L corresponds to a predetermined target value, the screw 16 can be tightened and thus the position of the drive 10 in relation to the cover element 13 can be fixed.
  • the setting gauge 39 has a pin 33 with which the setting gauge 39 is inserted into the axial bore 32 of the shaft 20. If the setting gauge 39 also has the driver 34, it is ensured that the setting gauge 39, like the rotor pot 21 with the shaft 20, can be set in rotary motion if necessary.
  • the setting gauge 39 is also provided with a measuring surface 41 against which the sensor 40 can measure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19173538.0A 2018-05-18 2019-05-09 Verfahren zum einstellen einer axialen position eines rotorantriebs, rotorspinnvorrichtung und spinnmaschine Active EP3578700B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018112081.8A DE102018112081A1 (de) 2018-05-18 2018-05-18 Verfahren zum Einstellen einer axialen Position eines Rotorantriebs, Rotorspinnvorrichtung, Spinnmaschine sowie Einstelllehre und Sensor

Publications (3)

Publication Number Publication Date
EP3578700A2 EP3578700A2 (de) 2019-12-11
EP3578700A3 EP3578700A3 (de) 2020-02-26
EP3578700B1 true EP3578700B1 (de) 2021-12-29

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Application Number Title Priority Date Filing Date
EP19173538.0A Active EP3578700B1 (de) 2018-05-18 2019-05-09 Verfahren zum einstellen einer axialen position eines rotorantriebs, rotorspinnvorrichtung und spinnmaschine

Country Status (3)

Country Link
EP (1) EP3578700B1 (zh)
CN (1) CN110499556B (zh)
DE (1) DE102018112081A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022103814A1 (de) * 2022-02-17 2023-08-17 Maschinenfabrik Rieter Ag Offenend-Spinnvorrichtung für eine Offenend-Spinnmaschine sowie Offenend-Spinnmaschine
DE102022103813A1 (de) * 2022-02-17 2023-08-17 Maschinenfabrik Rieter Ag Offenend-Spinnvorrichtung für eine Offenend-Spinnmaschine sowie Offenend-Spinnmaschine

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
DE4020518A1 (de) * 1990-06-28 1992-01-02 Schubert & Salzer Maschinen Offenend-spinnrotor
DE10340657A1 (de) * 2003-09-04 2005-03-31 Saurer Gmbh & Co. Kg Offenend-Spinnvorrichtung
DE102005023517A1 (de) * 2005-05-21 2006-11-23 Saurer Gmbh & Co. Kg Offenend-Spinnvorrichtung
DE102005062196A1 (de) * 2005-12-23 2007-06-28 Saurer Gmbh & Co. Kg Offenend-Spinnrotor für eine Kreuzspulen herstellende Textilmaschine
DE102006019224B4 (de) * 2006-04-26 2014-02-20 Rieter Ingolstadt Gmbh Offenend-Spinnvorrichtung
DE102006030187A1 (de) * 2006-06-30 2008-01-10 Oerlikon Textile Gmbh & Co. Kg Lagereinrichtung für einen Spinnrotor
DE102008049363B4 (de) * 2008-08-19 2022-10-13 Trützschler Group SE Vorrichtung für eine oder an einer Spinnereivorbereitungsmaschine, die ein Streckwerk zum Verstrecken von strangförmigem Fasermaterial aufweist
DE102008055845A1 (de) * 2008-11-04 2010-05-06 Oerlikon Textile Gmbh & Co. Kg Offenend-Spinnvorrichtung
CZ2013209A3 (cs) * 2013-03-22 2014-08-27 Rieter Cz S.R.O. Způsob zjišťování změn polohy bezhřídelového spřádacího rotoru rotorového dopřádacího stroje v dutině aktivního magnetického ložiska a spřádací jednotka rotorového dopřádacího stroje s aktivním magnetickým ložiskem pro uložení bezhřídelového spřádacího rotoru
DE102014001627B4 (de) * 2014-02-07 2022-03-24 Saurer Spinning Solutions Gmbh & Co. Kg Offenend-Rotorspinnvorrichtung und Verfahren zum Betreiben einer Offenend-Rotorspinnvorrichtung
DE102016003148A1 (de) * 2016-03-16 2017-09-21 Saurer Germany Gmbh & Co. Kg Offenend-Rotorspinnvorrichtung
DE102016120989A1 (de) * 2016-11-03 2018-05-03 Rieter Ingolstadt Gmbh Offenend-Spinnvorrichtung und Verfahren zum Betreiben einer Offenend-Spinnvorrichtung

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None *

Also Published As

Publication number Publication date
EP3578700A3 (de) 2020-02-26
EP3578700A2 (de) 2019-12-11
CN110499556B (zh) 2022-11-04
DE102018112081A1 (de) 2019-11-21
CN110499556A (zh) 2019-11-26

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