JP2009516085A - Ring spinning machine with stretching mechanism - Google Patents

Abstract

【Task】
To provide a device in which torque can be guided in a simple manner between the ends of a very long extension mechanism to prevent or at least reduce twisting.
[Solution]
The present invention includes a stretching mechanism that has a stretching roller that can be driven by a number of rotations that have a predetermined delay by the stretching mechanism main drive device, and the stretching roller auxiliary drive device is attached to the stretching roller away from the stretching mechanism main drive device With respect to the ring spinning machine, the stretching rollers (2, 3, 4) are distributed over the length of the stretching mechanism (1) and are provided with a plurality of stretching roller auxiliary driving devices (12). A torque is applied to the roller to at least reduce its twist. Thereby, the section of the ring spinning machine at this point is increased or the sequence is not interrupted and in this case without having to be returned to the use of a synchronous motor, Torque is guided between the ends of the two to prevent or at least reduce its twist.
[Selection] Figure 1

Description

  The present invention relates to a ring spinning machine including a stretching mechanism having a plurality of stretching rollers.

  For example, a large length extension mechanism with more than 500 working points has the problem that the extension roller is twisted differently under different rotational resistance than the torque exerted on the roller. From this length, this problem arises based on a variety of factors such as roller diameter, bearing friction, and interference with drawn belts. These different twists do not have a disadvantage when the stretching roller rotates. However, when these different twists are generated or eliminated, during acceleration or delay of stretching roller rotation, such as start and stop, this leads to delay errors. Depending on whether the twisting of the stretching roller precedes or follows the stretching roller connected to the front or back, this can be a thin portion of the twisted yarn that can cause property loss or yarn breakage or Twist the thick part.

  Therefore, the same (auxiliary) gear transmission as the gear transmission means of the extension mechanism electric device is arranged at the end of the extension roller facing away from the extension mechanism transmission, and each of the extension rollers is arranged by the gear transmission. Can be obtained upright in the starting, stationary, or stopped state of the extension roller, thereby preventing or at least reducing harmless values in large length extension mechanisms. . The twist is not increased, but rather is held in a delayed relationship [DE 2641434 (Patent Document 1)].

  In this case, as a matter of course, it must be confirmed that the change in the delay relationship of the extension mechanism main transmission device is also properly attempted in the auxiliary transmission device when the number of twisted yarns is changed. This not only means complex work, but also a dangerous source of error that can damage the stretching mechanism when this change is not performed in the same direction and no safety is generated against it.

  Therefore, without using an auxiliary transmission device with gear transmission means, rather than being blocked by an auxiliary motor whose torque is guided to the expansion roller at the end facing away from the expansion mechanism transmission device of the expansion roller, at least critically It has been proposed to use a twist in the stretching mechanism when obtaining below the value. Patent Document 1 discloses a stretching mechanism having a large length for a ring spinning machine, and a stretching mechanism transmission device in which all stretching rollers are driven accurately with a delay is arranged at a substantially longitudinal center of the stretching mechanism. Each of the long stretch rollers is driven by an auxiliary motor that guides the torque to reduce at least the twist that occurs at the free end.

  However, the arrangement of the extension mechanism within the longitudinal range of the extension roller has the disadvantage that the sequence of the work parts is interrupted at this point. It only complicates the assembly of the ring spinning machine. A device that replaces the roving bobbin and / or cup, especially when special treatment is provided, because the automatic supply device for such a replacement device has an empty space at this location It is because it must have.

  Even in the case of using a connecting transmission device at the end, for example, in a very long extension mechanism having 750 or more work points, the twisting condition of the extension mechanism occurs in the central region of the work part, and the generated twisted yarn May cause at least a delay error.

German Patent Application No. 10040420 (Patent Document 2) discloses an extension mechanism arrangement in which at least one lower roller of an extension mechanism lower roller is driven along its length at two or more drive points. It was. In this arrangement, the extension mechanism main drive means at the end of the extension mechanism is clearly abandoned, and the extension mechanism is driven exclusively by a plurality of individual drive means. Spur gears, screw gear devices or linear motors (FIGS. 1 to 3) are provided as driving means. It is clear that the gears (27, 29, 31) shown have no space at a distance determined by a slight mutual processed fiber length in the stretching mechanism. All of these are very expensive.
German Patent 2641434 German Patent Application No. 10040420

  The object of the present invention is therefore to provide a device in which torque can be guided in a simple manner between the ends of a very long extension mechanism, preventing or at least reducing twisting.

  The solution according to the invention is mentioned in claims 1, 14 and 20.

  In the long extension mechanism, the extension mechanism main drive mechanism disposed at one end of the extension mechanism, which is delayed and applied with an accurate rotational speed, may also have a plurality of extension rollers distributed depending on the length of the extension roller. The auxiliary drive is also provided, so that the gradient of the stretching roller is counteracted to twist over its entire length. In this case, the driving means of the extension roller auxiliary drive device is used so that it does not exert the same number of rotations on the extension roller as the drive means of the extension roller auxiliary drive device, which substantially influences the embodiment and the action of electrical energy. To simplify.

  The preferred embodiment contemplates that the extension mechanism of a short foundation ring spinning machine where the extension mechanism does not twist is provided with an extension mechanism main drive that compensates for the torque demand of the extension mechanism. Each ring spinning machine having a length greater than the base ring spinning machine is supplemented by an appropriate number of stretching roller auxiliary drive units for the additional torque demand to accurately drive the stretching roller speed.

  The narrow configuration of the extension roller auxiliary drive or the transmission member to the extension roller extends this configuration without having to increase the working interval of the ring spinning machine or omit the working location. It is allowed to act between work points on the roller. This initiates the possibility of launching the extension roller auxiliary drive at any location along the extension roller in any number and guiding additional torque to the extension roller to reduce twist.

  The drive motor of the extension roller auxiliary drive device can be formed as a rotating area magnet, as an asynchronous motor with variable or adjusted rotation speed, or as a synchronous motor or reluctance motor. In particular, rotating area magnets and variable speed asynchronous motors offer the advantage that they often do not require a function-dependent change in the action of the supplied energy.

  Since the extension roller auxiliary drive device can be fitted into the extension mechanism at any position without difficulty, the extension roller auxiliary drive device is provided in an arbitrary number, and each extension roller is provided in a different number. They can be equipped with a slight output, and it deals with a slim configuration.

  For the sake of uniformity, the transmission of the extension roller auxiliary drive for all extension rollers can be formed in unison. However, since the rotational speeds of the entrance roller and the exit roller are usually very different, it is preferable to apply an extension roller auxiliary drive device having transmissions having different speed ratios for at least these extension rollers.

  In particular, an intermediate roller for moving the belt to overcome high resistance when sliding over the turning edge of the belt cage is provided with an extension roller auxiliary drive. However, it is recommended that all the extension rollers of the extension mechanism have an extension roller auxiliary drive. The number of rotations of the extension roller driven by this extension roller auxiliary drive is still determined by the extension roller auxiliary drive.

  By inducing the supply frequency of the extension mechanism drive motor, it is contemplated to guide the rotation speed to the extension roller auxiliary drive device on the basis of the start and stop characteristic curves of the extension mechanism drive means to accelerate and decelerate. Thereby, a delay error is avoided when the extension mechanism is started and when it is stationary.

  An extension mechanism in which the extension roller is not driven by a gear transmission, but rather by another precisely controlled (synchronous) motor, has an energy supply that supplies the motor with the appropriate frequency. In this case, the drive motor of the extension roller auxiliary drive device is operated at a frequency which coincides with the frequency of the attached extension roller motor or is emitted from the extension roller motor. In this case, the exact number of rotations that cause the delay of the stretching roller is determined by the stretching roller synchronous drive motor, so it is common for the stretching roller auxiliary drive device to have a sufficient reduction in twist by the introduction of torque. Use of an asynchronous motor is sufficient.

  It will be appreciated that the extension roller auxiliary drive may be equipped with a synchronous motor or a reluctance motor.

  For the driving mechanism of the extension mechanism, an electric motor consisting of a reference train having a defined output stage is usually used. Since suitable electric motors are often provided, the following powerful electric motors are often used, but they are expensive and rotate only at partial loads in an inconvenient form. Also in the case of this invention, it is easy to provide a unified output of the electric motor. But here, adapting the number of unified stretch roller auxiliary drives used very closely to the total power consumption required does not cause a problem, so the motor is loaded near its rated output. Yes.

  For practical reasons, it is recommended to have an extension roller auxiliary drive adjacent to all extension rollers of the extension mechanism. This simplifies the wiring. However, on the other hand, it is never mentioned that a stretching roller having a higher twist than the other stretching rollers is provided at a short distance thereby providing a large number of stretching roller auxiliary drives. In this form, different twists can be compensated for by the stretch roller with the fewest number of stretch roller auxiliary drives with arbitrarily loaded drive motors.

  Often in the extension mechanism the exit roller and the intermediate roller are driven by separate synchronous motors, while the entrance roller is driven by the intermediate roller by a gear transmission, which often changes the delay between the entrance roller and the intermediate roller Because it is done. In this case, the drive motor of the outlet roller and intermediate roller extension roller auxiliary drive can be induced by a frequency guided from the (master) frequency of the intermediate roller master motor.

  A transmission member for transmitting the driving energy of the extension roller auxiliary drive device to the extension roller according to the narrow structure proposed in claim 14 is provided between the two working points without increasing the spindle section of the ring spinning machine. It is possible to eliminate the need for the operation part to be operated or omitted.

  This initiates the possibility of guiding additional torque along the stretching roller at any point to the stretching roller to prevent or at least reduce twisting. In this case, according to the present invention, the tendency of the stretching roller is removed to twist, i.e. at least substantially compensate for them. This is done depending on the number of extension roller auxiliary drive devices attached to the extension roller, by applying electrical energy, in particular a supply frequency or supply voltage, to the extension roller auxiliary drive device or by transmitting torque.

  The choice of supply frequency or supply voltage can be applied to the operating state of the stretching roller. It can be raised temporarily at the start of the machine or selected higher at higher speeds.

  Since the extension roller auxiliary drive can be fitted into the extension mechanism at any location and / or in any number without difficulty, the extension roller auxiliary drive can be equipped with a slight output, which is its narrow configuration Be treated. The extension roller auxiliary drive can be implemented uniformly, and at higher torque demands, the extension roller auxiliary drive can be used for a larger number.

  If there is not enough space for the connection of the transmission member of the extension roller auxiliary drive device under the support arm and the load arm of the extension mechanism, this upper roller attached between two adjacent support load arms It has been proposed to place pairs. The extension roller auxiliary drive is more preferably arranged between the corrugated areas located beside the second and third right or left stand.

  If there is not enough space for the connection of the transmission member of the extension roller auxiliary drive between two adjacent work points of the extension mechanism, the spacing between the work points conditioned by the two identical upper roller pairs Has been proposed, so that the spacing between the work points conditioned by the other upper roller pair is increased during the simultaneous maintenance of the spindle sections. This forms a space for connecting the transmission members in the enlarged intermediate space.

  Free attachment to the stretching roller allows the stretching roller auxiliary drive to be fitted between the offset working locations of the stretching roller when several stretching rollers are equipped with this kind of stretching roller auxiliary drive And

  The extension roller auxiliary drive must be fixed to receive the reaction moment of the energy it transmits. Therefore, in a preferred form, the extension roller auxiliary drive is fixed to a stand or a roller bearing slider attached to the stand. This makes it unnecessary for the extension roller auxiliary drive to have to be newly adjusted when changing the roller spacing.

  In order to achieve an offset arrangement here, it has been proposed to arrange the extension roller auxiliary drive device alternately on the right and left on the stand.

  With as many stretching roller auxiliary drives as possible along the stretching roller, the diameter of the stretching roller can also be reduced, and when this seems to be desired, the increased risk of twisting is accompanied by a disadvantageous result. Without occurring, the diameter of the stretch roller can also be reduced.

  When the extension roller auxiliary drive device has a transmission member between the drive member and the extension roller, the extension roller auxiliary drive device protects against flight of the extension roller auxiliary drive device and contamination of the processed material. In such a closed casing.

  Since the rotational speeds of the entrance roller and the exit roller are typically very different, at least for both of these stretching rollers, a common stretching roller auxiliary drive must be provided with a transmission with different gear ratios for both stretching rollers. Is preferred.

  In the extension roller auxiliary drive device, the drive motor can be used in the form of a synchronous motor that can be formed as a reluctance motor, or it can be used in the form of an asynchronous motor whose rotation speed is adjusted.

  In the case of the extension roller motor according to claim 20, the maximum value of the axial length is the stator and the rotor, and the bearings provided on both sides of the stator and the rotor by both components are never abandoned or made as thin as possible As it forms, both components fully adopt the internal spacing between two adjacent corrugated regions.

  This is possible by the fact that the rotor is supported on the extension roller and does not produce a radial force on one side between the stator and the rotor.

  The minimum value of the outer diameter of the stator is to make full use of the minimum dimensions using the extension rollers adjacent to the stator. This is possible by reducing the diameter of the stretching roller that supports the stretching roller motor in the region where the rotor is fixed to the stretching roller. Thereby, not only the motor-effective component is stored inward again, but also the stator component is stored. Stretch roller gradient is avoided or reduced to be twisted by the used stretch roller motor.

  It should be noted that at this maximum or minimum value, the applied torque of the stretch roller motor remains at a maximum.

  Since bearings of this kind, in particular end shields, are required to have an axial configuration length, the abandonment of the rotor's own bearing can increase the axial length of the rotor. This abandonment is made possible by the fact that the rotor is fixed on the stretching roller, which is attached to the rotor and is used by the existing bearing. This bearing is connected to the rotor via an extension roller only indirectly and spaced from the rotor.

  The stretching roller of the stretching mechanism has a very slight eccentricity for fiber technology reasons. Unsmoothness during the rotation of the stretching roller leads to cyclic delay errors, and the quality of the twisted yarn generated contributes to the unusability. Straightening the stretch roller for precise rotation without eccentricity represents another work step during manufacture.

  By inserting the protruding journal of the rotor into the stretch roller section that connects to the stretch roller motor, extremely precise and eccentric rotation of the rotor is achieved. Optionally, one of the stretch roller portions has a cylindrical journal to which the rotor is fixed. If a screw that can be screwed into the extension roller portion to which the extension roller portion is connected is connected to the journal, the rotor is fastened and fixed to the journal.

  The stator of the extension roller motor preferably does not have a bearing. The stator is fixed to a stationary component where the support of the extension mechanism, the support of the support load arm, or the belt turning rail is important. Preferably, the component containing the stretch roller bearing to which the stretch roller motor is attached is important. In particular, the stator can be arranged on the stand of the extension mechanism or on one roller slider of the extension roller arranged in front of the outlet roller.

  The synergistic action of the stator and rotor requires the precise axial position of both motor members. In order to make this possible, the stator can be adjusted with respect to the rotor and is adjustable and fixed to the component.

  For this purpose, in another configuration of the invention, an installation gauge is proposed, by which the stator is very accurately aligned with the rotor and in this state can be fixed to the components provided on it. . Preferably, two identical installation gauges are provided and can be inserted into the ring gap between the stator and the rotor from both front sides of the motor.

  A ring gap between the stator and the rotor is provided with a packing in order to prevent the dust and flying objects that are strongly loaded by this contamination from entering the motor.

  If the motor is arranged far away from the stand or roller slider, so that the fixing has a large overhang length, the motor is provided with a support bearing on one side. It is not a problem to install a motor, but rather a problem to prevent the stator from coming into contact with the rotor during an unintended one-side load.

  In an alternative embodiment, since no radial or axial force is generated between the rotor and the stator, a bearing that can be formed with low strength is arranged in the rotational gap between the stator and the rotor. This provides the advantage that the stator is not fixed and does not need to be adjusted and cannot contact the rotor. The stator must be supported only by non-rotating components in order to absorb the reaction back into torque. In this case, for example, the holding rod of the lower belt tension hanger is important.

  Finally, it is possible to attach a thin sheet shield next to the stator and rotor, which does not substantially increase the axial length of the component, and that the bearing that directly supports the extension roller is placed. Can be done.

  In the drawings, embodiments of the invention are shown purely and schematically.

  1 to 3 of the drawings show the initial regions of the three stretching rollers 2, 3 and 4 by the stretching mechanism 1, which extend further to the right. These rollers are supported on the stand 5 at uniform intervals. In the embodiment of FIGS. 1 and 2, these rollers are drive-coupled in an integral manner at the left end in the form of a transmission gear transmission 8 driven by an electric motor 7 by an extension mechanism main drive 6. The transmission gear transmission provides angular rotation to the extension rollers to achieve the intended delay stage between the rollers.

  The drive motor 7 is energized from the network 9. This network supplies energy to the energy supply device 10 and the drive motor 11 of the extension roller auxiliary drive device 12. The extension roller auxiliary drive device acts on the transmission member 13 in the lower rollers 2, 3, 4 to transmit torque to the transmission member. Since the energy supply device 10 is connected to the drive motor 11 via separate conductors 14, 15, 16, the conductor can be applied to the drive motor with a different supply voltage and / or supply frequency.

  Since the rotational speed of the stretching rollers 2, 3 and 4 and the relationship with each other are accurately determined by the gear transmission 8, it is sufficient if the stretching roller auxiliary driving device 12 applies only torque to the stretching roller. Therefore, the extension roller auxiliary drive is in the simplest embodiment a rotating area magnet, which supports the rotational movement imparted to the extension roller by the gear transmission 8 and thereby twists the roller. Decrease. Greater or lesser torque can be achieved with different supply voltages and / or supply frequencies.

  In the embodiment of FIG. 2, the extension rollers 2, 3, 4 are not twisted here, especially in the vicinity of the gear transmission 8, so that the rotational speed detectors 17, 18, 19 are arranged. The output unit is connected to the energy supply device 10. In this case, since this output is applied to the drive motor 11 of the extension roller auxiliary drive device 12 by adjusting the rotation speed, the drive motor drives the extension roller at the intended rotation speed.

  In this embodiment, it is illustrated that installation of the extension roller auxiliary drive device 12 on different extension rollers 2, 3, 4 is different. It starts from the fact that the lower roller pulls the lower belt, which is slid and guided by turning, so that the twist of the intermediate lower roller 3 is greater than the twist of the other lower rollers. Thus, the intermediate lower roller is provided with, for example, an extension roller auxiliary drive 12 on each second stand 5, while the other lower roller has such an extension roller auxiliary drive on each third stand, for example. .

  In the embodiment of FIG. 3, the extension rollers 2, 3, 4 have one synchronous motor 20, 21, 22 as the extension mechanism main drive 6. The energy supply device 10 causes the synchronous motor to supply its supply frequency so that the stretching roller is driven at exactly the intended rotational speed. With this frequency, the drive motor 11 formed here as a synchronous motor of the extension roller auxiliary drive device 12 is actuated and driven synchronously.

  4 to 7 of the drawings schematically show another embodiment of the invention.

  FIG. 4 shows three lower rollers 1, 2, and 3 of the extension mechanism 4, and these lower rollers are supported on the stand 5. The support load arm 6 can be recognized on the right side of the stand, and three upper roller pairs 7, 8 and 9 are supported on this arm, and these upper roller pairs press against the lower roller. Although another supporting load arm 6 can be recognized on the left of the stand, the upper roller pair is disassembled apart. In the main delay region between the lower rollers 2 and 3, a belt turning rail 10 is shown.

  As can be recognized from FIG. 5, the drive motor 12 of the extension roller auxiliary drive device 13 is fixed to the stand 5 via the arm 11 below the output roller pair 3/9. The drive motor drives a transmission member 15 formed as a spur gear transmission through the spur gear 14, and the other spur gear 16 is positioned on the lower roller 3. The transmission member likewise acts on a region of the lower roller 3, which region is located to the left between the upper roller 9 of the left support load arm 6 and the upper roller of the next support load arm which is no longer shown. . This prevents the transmission member 15 from coming into contact with the support load arm 6.

  The spur gear transmission 14/16 of the extension roller auxiliary drive 13 is preferably housed in a dust-tight casing 17.

  The extension roller auxiliary drive unit 13 attached to the intermediate roller pair 2/8 is fixed to the roller slider attached to the roller pair on the right side of the stand 5 and acts on the lower roller 2 beside the upper roller 8. The Thereby, when the roller pairs 2/8 and 3/9 are pressed together at a slight interval, the transmission members 15 of the extension roller auxiliary driving device 13 attached to the lower rollers adjacent to each other are obstructed. Is avoided.

  The extension roller auxiliary drive device 13 attached to the input roller pair 1/7 is again placed on the left side of the stand 5 on the roller slider attached to this roller pair. The arrangement with the roller slider offers the advantage that the extension roller auxiliary drive 13 is adapted to shift when adjusting the roller spacing and does not require another setting.

  The transmission member 15 of the extension roller auxiliary drive device 13 does not require that the corrugated area and thus the working part of the extension mechanism be omitted so that they can act on this extension roller between adjacent corrugated areas 18 of the extension roller. It is formed thinly.

  Since the extension roller auxiliary drive device 13 can be fitted between almost any working points of the extension mechanism due to its narrow configuration, the advantage is that the extension roller auxiliary drive device is small and can be implemented with little output. The required output can be achieved by an appropriate number of members.

  It also provides the advantage that the extension roller auxiliary drive 13 attached to the lower rollers 1, 2, 3 can be adjusted to twist the tendency of the extension roller by its number of members. A stretch roller auxiliary drive that rotates without full power is not used.

In many cases, the interval corresponding to the section interval T of the ring spinning machine is very small between the two work points of the extension mechanism 4, and the transmission member 15 of the extension roller auxiliary drive device 13 can be operated. To do. In such a case, as is apparent from FIG. 6, the distance between the three working points of the extension mechanism is reduced to the distance t ₂ on the one hand or increased to the distance t ₁ . At the interval t ₁ , the extension roller auxiliary drive 13 can be mounted between the corrugated areas 18. The action of the extension roller auxiliary drive device 13 is preferably performed at the joining point of the roller portions. In this case, as is apparent from FIG. 6, it is not necessary for each connecting portion to be equipped with an auxiliary drive device.

  In this case, the division interval of the work location of the ring spinning machine can be applied to the division interval T of the spindle 19 and remain unchanged. In this case, the work location is not omitted. At this time, one thread of the thread 20 passes through the thread guide 21 slightly obliquely.

As is apparent from FIG. 7, the increase in spacing can be distributed between two adjacent corrugated region spacings. Here the interval 3T three waveforms regions distributed in the interval t ₃ when the enlarged more strongly with distance t ₄ when being two reduction, wider stretching roller auxiliary drive 13 is arranged. At this time, the two yarns 20 pass obliquely to the yarn guide 21.

  Figures 8 to 13 of the drawings schematically show two alternative embodiments of the invention.

  As can be seen from FIG. 8, the extension roller motor 1 is fitted between the two corrugated areas 2, 3 of the two parts 4, 5 of the lower roller 6 of the extension mechanism. In this case, an arbitrary lower roller of the extension mechanism is important. The length L in the axial direction of the extension roller motor is small so that the application section interval T between the extension mechanism and the ring spinning machine can be used without being increased.

  The extension roller motor 1 has a rotor 7 and a stator 8. A rotor 7 is fixed to the extension roller 6. This is done by having a cylindrical journal 9 with a screw journal 10 to which the roller portion 4 connects, as shown in FIG. 8, and screwing the journal into the hole of the roller portion 5 by the screw journal. A sleeve-like rotor is positioned on the cylindrical journal 9 and is clamped between the roller parts 4 and 5.

  FIG. 9 shows a solution in which the drum-shaped rotor has two holding journals 11 on both sides, by which the journal can be force-inserted into the holes of the adjacent roller parts 4 and 5, Or it is screwed. As not shown in detail, the rotor 7 can be divided into one plane parallel to the axis and can be placed and fixed in a region between the two corrugated regions 2 and 3.

  The rotor 7 is long so that its front surface is in contact with the corrugated regions 2 and 3 that are directly connected. The stator 8 and the rotor 7 are utilized to the maximum by the member that transmits the torque in the space between the adjacent corrugated regions.

  In the embodiment of FIG. 8, the stator 8 does not have a bearing. The stator has a seam plate 12 by means of which the stator is typically fixed to a twisting component 15 by means of a screw indicated by a center line 14 via a spacer member 13, which component member of the lower roller 6. The bearing 16 is connected. In this case, as usual, bearings that can be moved on a stand of an extension mechanism or on this stand of a roller slider containing an extension roller are equally important. The coupling with the roller slider offers the advantage that the coupling with the stator components does not have to be newly adjusted when the extension roller is moved in the course of changing the roller spacing.

  However, it will be appreciated that the stator may be coupled with other components that cannot be fixedly rotated. Thus, approximately the extension mechanism is provided with another holding device for the stator 8.

  The extension roller motor 1 itself does not have a specific bearing as described above. The rotor 7 is fixed to a rotatable extension roller 6, and the stator 8 is fixedly connected to a component 15 in a preferred form with a bearing 16 of the extension roller 6 with an extension roller motor attached. The extension rollers of the ring spinning machine allow a very narrow gap between the stator 8 and the rotor 7 in this form and have a slight eccentricity to ensure the correct operation of the extension roller motor.

  Of course, it is necessary to install the stator 8 accurately in the axial direction with respect to the rotor 7. For this purpose, for example, an installation gauge 17 shown in FIG. 13 is provided. The installation gauge has three wedge-shaped seam plates 21 on the grip 18 and the circular arm 19 which are shifted by 120 ° and coincide with the progress of the gap 20 between the stator 8 and the rotor 7. As shown in FIG. 12, the joint plate is pushed into the gap 20 in the direction of the arrow P, and in this case, the stator is aligned with the rotor. In a preferred form, two installation gauges are provided, and the seam plate 21 can be inserted into the gap 20 from both sides. In the achieved coaxial state of the stator with respect to the rotor, the stator can be fixed to a fixed location or torsional component 15.

  In particular, the stretching mechanism for processing cotton yarn is strongly loaded with short fibers and dust. Since these flying objects do not enter the inside of the motor 1, the packing 22 is provided around both the gaps 20 between the stator 8 and the rotor 7. The packing is preferably formed as a felt ring and can be located in the groove 23 of the stator or rotor 7.

  Since there is a corrugated area there, the extension roller motor 1 is not arranged directly beside the component stand 15. The extension roller motor acts on the extension roller 6 during the working point used by the first upper roller pair 24 beside the stand and is therefore located on the short spacer member 13. However, in this case, the extension roller motor often acts on the axial region of the upper roller pair 24 or the upper roller support load arm 25, so that the extension roller motor often has to be further pressed against the intermediate corrugation region. Don't be. For this purpose, a long spacer member 26 is required, and it is drawn widely to the extension roller motor. In this case, a bearing 27 is provided between the stator 8 and the rotor 7 so as to prevent the contact of the sensing member of the extension roller motor when the bearing is an unintended one-side load of the stator 8. To do. Spacing bearings 27 are not used to support the rotor 7 on the stator or to support the stator 8 on the rotor, but rather to maintain a spacing or gap 20 between the stator and the rotor.

  In FIG. 9, the spacing bearing 27 is illustrated as a ball bearing. In consideration of the slight rotation speed of the stretching roller and the exceptional load, the spacing bearing is formed as a sliding bearing. Due to the arrangement of the gap 20 between the stator 8 and the rotor 7, it does not require a bearing shield and is kept narrow so that the spacing bearing is not substantially extended to the length of the motor.

  FIG. 10 shows an embodiment in which two bearings 28 are provided in the gap 20 between the rotor 7 which can rotate with the extension roller 6 and the stator 8 which is held without rotation. Since the force generated between the rotor and the stator is small, the bearings are made narrow, thereby slightly reducing the achievable torque.

  The stator 8 supported on the rotor 7 must be supported by the twisted member so as to transmit the reaction force of the extension roller motor 1. In FIG. 10, this is the holding rod 29 of the belt tension hanger 30. The seam plate 12 in the stator surrounds the holding rod 29 in a fork shape. The seam plate 12 remains working with the holding rod 29 during the movement of the extension roller 6.

  According to FIG. 11, in the embodiment, the stator 8 has a thin plate-shaped end shield 31 at a thin end, and similarly a thin bearing 32 is arranged, and the extension roller 6 rotates on the bearing. In particular, the bearing 32 can be formed as a sliding bearing on the input shaft which rotates only slowly and in some cases on the intermediate roller. The end shield 31 is thin so as not to reduce the electric motor effective force between the stator 8 and the rotor 7.

  In order to minimize the outer diameter of the stator 8, it is provided to reduce the diameter of the cylindrical journal 9 to which the rotor 7 is fixed. As a result, the diameter of the extension roller motor 1 is expanded inward to some extent, the constituent members of the rotor slide inward, and the stator can be expanded inward as well. Thereby, the outer diameter of the stator 8 is maintained at the minimum dimension, and the torque applied by the extension roller motor 1 is maximized.

  The invention can be realized with all types of electric motors which are problematic for the driving means of the extension roller; synchronous motors and reluctance motors, asynchronous motors with or without rotational speed adjustment, step switching motors, rotating magnets . The supply of the stator is carried out in such a way that the rotational speed is adapted in particular with a controlled frequency. Typically, the stator contains an excitation winding, the rotor contains a permanent magnet, the permanent magnet is not shown in detail in the figure, and the rotor 7 and the stator 8 are shown in the figure by line shadows.

The top view in the start area | region of the expansion | extension mechanism provided with the expansion | extension mechanism main drive device and the expansion | extension roller auxiliary drive device is shown. FIG. 2 shows a display as shown in FIG. 1 with control of the number of revolutions of the driving means of the extension roller auxiliary driving device. FIG. 2 shows a display as shown in FIG. 1 including main driving means for a stretching roller by a synchronous motor. FIG. 6 shows a plan view of a part of the extension mechanism. The front view of the expansion | extension mechanism of FIG. 4 is shown. The front view of one form of an expansion | extension mechanism is shown. The front view of another form of an expansion | extension mechanism is shown. FIG. 3 shows a partial view of an extension mechanism comprising an extension roller motor shown in cross section fitted into a roller continuum. FIG. 9 illustrates one form of the embodiment of FIG. 4 shows another form of a stretch roller motor with a bearing. 6 shows yet another form of a stretch roller motor with a bearing. The details of the extension roller motor are shown. A gauge for aligning the stator with the rotor is shown.

Explanation of symbols

1 to 3:
1. . . . Extension mechanism 2,3,4. . . Lower roller 5. . . . Stand 6. . . . 6. Extension mechanism main drive device . . . Drive motor 8. . . . Gear transmission 9. . . . Circuit network 10. . . Energy supply device 11. . . Drive motor 12. . . Stretch roller auxiliary drive device 13. . . Transmission member 14, 15, 16. . . Conductor
4 to 7:
1,2,3. . . Lower roller 4. . . . Extension mechanism 5. . . . Stand 6. . . . Load arm 7, 8, 9. . . Upper roller pair 10. . . 10. Belt turning rail . . Arm 12. . . Drive motor 13. . . Stretch roller auxiliary drive device 14. . . Spur gear 15. . . Transmission member 16. . . Spur gear 17. . . Casing 18. . . Waveform area 19. . . Spindle 20. . . Thread 21. . . Thread guide

Reference numerals in FIGS. 8 to 13:
1. . . . Stretch roller motor 2,3. . . Waveform area of lower roller 4,5. . . Lower roller part 6. . . . Lower roller 7. . . . Stretch roller motor rotor 8. . . . 8. Stator of extension roller motor . . . Cylindrical journal of lower roller part 10. . . 10. Screw journal for lower roller section . . Rotor holding journal 12. . . Stator seam plate 13. . . Spacer member 14. . . Center line 15. . . Fixed location component 16. . . Lower roller bearing 17. . . Installation gauge 18. . . Grip 19. . . Circular arm 20. . . 20. Clearance between rotor 7 and stator 8 . . Seam plate 22. . . Packing in the gap 20 23. . . Groove for packing 22 24. . . Upper rotor pair 25. . . Upper rotor support load arm 26. . . Long spacer member 27. . . Spacing bearings in the extension roller motor 1 28. . . Bearing 29. . . Holding rod of belt tension hanger 30. . . Belt tension hanger 31. . . End shield 32. . . bearing

Claims (36)

  Stretching mechanism having a plurality of stretching rollers that can be driven by a stretching mechanism main drive device having a rotational speed with a predetermined delay, and the stretching roller auxiliary drive device is attached to the stretching roller at a certain distance from the stretching mechanism main drive device. A ring spinning machine comprising at least individual stretching rollers (2, 3, 4) distributed over the length of the stretching mechanism (1) and provided with a plurality of stretching roller auxiliary drives (12) The roller auxiliary drive device acts on the extension roller at a rotational speed that reduces its twist, and the extension roller auxiliary drive device (12) or the transmission member (13) acting on the extension roller (2, 3, 4) is a ring spinning machine. The auxiliary drive or transmission member of the extension roller can be moved without the need to increase the number of work sections or to eliminate the work frequency (FIGS. 1 to 3). One of such can act in this stretching roller between adjacent working portions, a ring spinning machine, characterized in that it is formed thin.   The extension mechanism main drive (6) is installed at the output of the extension mechanism so that it does not twist and the extra output requirement of the longer extension mechanism is the length of the corresponding number of extension rollers (2, 3, 4). 2. The ring spinning machine according to claim 1, wherein the ring spinning machine is applied by means of an extension roller auxiliary drive device (12) distributed over the entire area.   2. The ring spinning machine according to claim 1, wherein the extension roller auxiliary drive device (12) has a rotating magnet as the electric drive means (11).   2. The ring spinning machine according to claim 1, wherein the extension roller auxiliary drive device (12) has an asynchronous motor having a variable rotation speed as the electric drive means (11).   2. The ring spinning machine according to claim 1, wherein the extension roller auxiliary drive device (12) has an asynchronous motor whose rotational speed is adjusted as the electric drive means (11).   2. The ring spinning machine according to claim 1, wherein the extension roller auxiliary drive device (12) has a synchronous motor or a reluctance motor as the electric drive means (11).   The energy supply device (10) is designed to apply energy to the electric drive means (11) depending on the distance between each other along the stretching rollers (2, 3, 4). Item 2. A ring spinning machine according to item 1.   The energy supply device (10) is designed to apply energy to the electric drive means (11) of the extension roller auxiliary drive device (12) depending on the extension roller twist gradient with which the electric drive means is attached. The ring spinning machine according to claim 1, wherein:   The energy supply device (10) is characterized in that it is designed to apply energy to the electric drive means (11) depending on the time course of the drive means of the extension roller to which the electric drive means is attached. The ring spinning machine according to claim 1.   The energy supply device (10) is characterized in that it is designed to apply energy to the electric drive means (11) depending on the delay dependent drive means of the stretching roller to which the electric drive means is attached. The ring spinning machine according to claim 1.   The extension roller (2, 3, 4) is provided with a rotation speed detector (17, 18, 19) for reducing the rotation speed of the extension roller auxiliary drive device (12), particularly in the vicinity of the gear transmission mechanism (8), 2. The ring spinning machine according to claim 1, wherein the rotation speed converter causes the energy supply device (10) that releases energy depending on the rotation speed to act on the driving means of the extension roller auxiliary drive device (12). .   Resonance frequency that gives accurate rotational speed of each of the stretching rollers (2, 3, 4) is controlled by the synchronous motor (20, 21, 22) of the stretching mechanism main drive (6). 2. The ring spinning machine according to claim 1, wherein the ring spinning machine is used to actuate a synchronous motor or a reluctance motor to be driven.   The extension rollers (2, 3, 4) are simply driven by the extension roller auxiliary drive device (12) provided with a synchronous motor, a reluctance motor or an asynchronous motor whose rotation speed is controlled. 10. The ring spinning machine according to claim 1, wherein the ring spinning machine is acted on according to 10) to give a delay accurate rotational speed to the extension roller by the energy supply device.   The upper roller is formed as a pair of upper rollers loaded by a supporting load arm, and includes a stretching mechanism having a plurality of stretching rollers each having a plurality of stretching roller auxiliary driving devices spaced apart from each other. In the ring spinning machine, the distance (t1) between two work points of the extension mechanism adjacent to the extension mechanism (4) in the longitudinal direction of the extension mechanism (4) on which the extension roller auxiliary drive device (13) acts on the lower roller (3) is three. The total distance between adjacent work points is increased to match twice the reference distance (T) of the four work points (FIGS. 4-7) and the distance (t2) to the next adjacent work point of the extension mechanism The ring spinning machine according to claim 1, wherein the ring spinning machine is reduced so that the total distance between three adjacent work points is equal to twice the reference distance of the work points.   The distance (t1) between two work points of the extension mechanism adjacent in the longitudinal direction of the extension mechanism (4) on which the extension roller auxiliary drive device (13) acts on the lower roller (3) is between four adjacent work points. And the distance (t2) between the two adjacent work points of the extension mechanism is equal to the total distance between the four adjacent work points. 15. The ring spinning machine according to claim 14, wherein the distance is reduced to coincide with three times the reference distance (T) of the four work points.   16. The stretching roller auxiliary drive device (13) acts between the working points of the stretching rollers (1, 2, 3) arranged offset from each other in the longitudinal direction of the ring spinning machine. The described ring spinning machine.   17. A ring according to any one of claims 14 to 16, characterized in that the extension roller auxiliary drive (13) is fixed to the bearing stand (5) or to an extension roller slider which is movable in the bearing stand. Spinning machine.   The extension roller auxiliary drive device (13) of the adjacent extension rollers (1/2, 2/3) is fixed to the bearing stand (5) or an extension roller slider movable in the bearing stand. Item 18. A ring spinning machine according to Item 17.   The extension roller auxiliary drive device (13) and the transmission member (15) to the extension roller (1/2, 2/3) or any one of them are housed in a casing (17) encapsulated in a particularly dust-tight manner. The ring spinning machine according to any one of claims 14 to 18, wherein the ring spinning machine is provided.   Stretching roller motors according to the maximum value of the axial length (L) of the rotor (7) and the stator (8) and the minimum value of the outer diameter (D) of the stator and the maximum value of torque applied from the stretching roller motor (1) Can be transmitted between two adjacent corrugated regions (2, 3) of the stretching roller (6) and in a distance dimension with respect to the adjacent stretching roller (FIGS. 8 to 13). An extension roller motor for an extension roller of a spinning machine comprising a stator and a rotor arranged on and between the extension rollers.   Since the rotor (7) of the extension roller motor (1) is fixed directly on the attached extension roller (6), the bearing slider is abandoned and the stator (8) of the motor (1) is extended. 21. Stretch roller motor according to claim 20, characterized in that it is fixed or supported (FIGS. 8, 9, 10) on torsional components (15, 29) of the roller.   The rotor (7) of the extension roller motor (1) is fixed directly on the attached extension roller (6), and the extension roller motor (1) rotates between the stator (8) and the rotor (7). 21. The extension roller according to claim 20, further comprising a bearing (27) for maintaining a gap in the gap (20), wherein the opposed contact between the stator and the rotor is prevented by the gap (FIG. 9). motor.   The rotor (7) of the extension roller motor (1) is fixed directly on the attached extension roller (6), and the extension roller motor (1) has a gap between the stator (8) and the rotor (7). A bearing (28) for supporting the stator on the rotor is provided in (20), and the extension roller motor is supported by the twisting component (29) of the extension mechanism (FIG. 10). The stretching roller motor according to 20.   The rotor (7) of the extension roller motor (1) is fixed directly on the attached extension roller (6), and the extension roller motor (1) has a thin plate-shaped end shield (31), and the end thereof A bearing (28) is arranged on the slider, the stator (8) is supported on the extension roller by the bearing, and the motor is supported by the twisting component (29) of the extension mechanism (FIG. 11). The extension roller motor according to claim 21.   The rotor (7) of the extension roller motor (1) is fixed directly on the attached extension roller (6), and the extension roller has a reduced diameter (d) in the area where the rotor is fixed. The extension roller motor according to claim 21, wherein the extension roller motor is provided.   The roller continuous portion (4) of the stretching roller (6) between the corrugated areas (2, 3) has a cylindrical housing portion (9) for fixing the rotor (7) of the stretching roller motor (1) and is cylindrically housed. 26. Stretch roller motor according to claim 25, characterized in that it can be screwed into the connecting roller part (5) by means of a screw (10) connecting to the part.   26. Extension according to claim 25, characterized in that the rotor (7) of the extension roller motor (1) has a holding journal (11) which can be inserted by a roller continuous part (4, 5) protruding on both sides and connected to the hole. Roller motor.   23. Stretch roller motor according to claim 22, characterized in that the twisting component (15) contains a bearing (16) for the stretch roller (6).   29. Stretching roller motor according to claim 28, characterized in that the twisting component is a stretching roller stand (15) or a roller slider supported on the stand.   23. The extension roller motor according to claim 22, wherein the component is a rod (29) holding a lower belt tension hanger (30).   23. The extension roller motor according to claim 22, wherein a lower belt deflection rail is used as the twist component.   The rotor (7) and the stator (8) adopt as completely as possible the inner spacing between two adjacent corrugated regions (2, 3) of the stretching roller (6). Stretch roller motor.   The stator (8) of the motor (1) can be adjusted and adjusted in a coaxial manner with the rotor on the component (15) having a bearing (16) of the extension roller (6). Stretch roller motor.   At least one installation gauge (17) is attached to the extension roller motor, and the installation gauge has three wedge-shaped seams (21) offset from each other by 120 ° on the partial circle (19). Can be inserted into the gap (20) between the stator (8) and the rotor (7) in the direction of the arrow P, and the stator is centered on the rotor at a position where the stator should be fixed to the component (15). The extension roller motor according to any one of claims 20 to 33.   A packing (22) is disposed in the gap (20) between the stator (8) and the rotor (7), and is characterized by preventing entry of dust and scattered matter into the motor (1). The extension roller motor according to any one of claims 20 to 34.   A ring spinning machine comprising the extension roller motor according to any one of claims 20 to 35.

Images