• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a gear unit (1) for a combing machine in spinning preparation, the gear unit (1) having a drive input shaft (10) which can be brought into operative connection with a drive motor (11), and the gear unit (1) being a pincer gear (12) which is drivingly connected to the drive input shaft (10) and is set up to drive a tong apparatus, the gear unit (1) further comprising a tear-off cylinder gear (14) which is set up to drive at least one tear-off cylinder (15, 16) , and wherein the tear-off cylinder gear (14) is drivingly connected to the pincer gear (12) by means of a coupling unit (17). According to the invention, the coupling unit (17) has an electrically actuatable adjusting means with which the state of the coupling unit (17) can be changed. The invention is also directed to a combing machine with such a gear unit (1).
    公开号:CH717318A2
    申请号:CH00356/21
    申请日:2021-04-07
    公开日:2021-10-15
    发明作者:Thomas Schmitz Dr
    申请人:Truetzschler Gmbh & Co Kg；
    IPC主号:
    专利说明:

    The invention relates to a gear unit for a comber in the spinning preparation according to claim 1, and a comber with a gear unit according to claim 11. The gear unit has a drive input shaft which can be brought into operative connection with a drive motor, and wherein the gear unit is a pincer which is drivingly connected to the drive input shaft and is set up to drive a tong apparatus, the gear unit also having a tear-off cylinder gear set up to drive at least one tear-off cylinder, and wherein the tear-off cylinder gear is drivingly connected to the tong gear by means of a coupling unit.
    For example, DE 10 2012 011 030 A1 discloses a gear unit for a combing machine in spinning preparation, and the gear unit has, as essential structural components, a drive input shaft that drives a pincer gear, the pincer gear serving to drive a pincer apparatus. Furthermore, the gear unit has a tear-off cylinder gear for driving two tear-off cylinders, the tear-off cylinder gear being designed in a manner known per se as a planetary gear.
    The main challenge in the design of such a gear unit is the generation of a so-called pilgrim step movement for the tear-off cylinder of the combing machine. For this purpose, the planetary gear is initially driven with a continuous rotary movement via a gear input. Accompanying this continuous drive of the gear input of the planetary gear, another component of the planetary gear, for example the sun gear, the planet carrier or the ring gear of the planetary gear, is driven in an oscillating manner via a cam gear, which finally results in the pilgrim step movement at a gear output of the planetary gear, which is introduced into the tear-off cylinder .
    The reciprocating movement of the pincer apparatus is generated with the pincer gear, which comprises a crank arm with an eccentric, the crank arm is usually received on a central shaft that is at least indirectly connected to the drive input shaft, for example via a Gear pairing. The gear unit can also be used to drive a circular comb roller with which the tuft of the torn-off textile strand is combed out. In addition, further driven components are driven via the gear unit, for example a cleaning brush and / or further rollers, for example table calender rollers, delivery rollers and / or upper nipper shafts, as well as winding shafts. A secondary transmission is used for this purpose, which is also drivingly connected to the drive input shaft.
    The tear-off cylinders have to be rotated backwards through a certain angle and then moved forward again through another, larger certain angle, which is referred to as the pilgrim step movement, at each comb game, that is, as a rule, during each revolution of the circular comb roller. In known combing machines, this movement of the tear-off cylinder is generated mechanically in the gear unit with the features described above and is derived via a coupling from the rotation of the drive input shaft, so to that extent directly from the central shaft and thus analogously also from the circular comb roller, the latter shafts being used to operate the pincer gear operated synchronously.
    A necessary adjustment requirement in the gear unit results from the phase position of the pilgrim step movement of the tear-off cylinder relative to the oscillating movement of the tong apparatus and the rotational position of the circular comb roller. In order to enable such an adjustment or setting, a coupling unit is usually provided which forms a driving connection between the tear-off cylinder gear and the pincer gear. To adjust the phase position of the pilgrim step movement relative to the movement of the tong apparatus, the clutch is usually opened with a tool by a fitter in order to also manually change a phase position of the tear-off cylinder gear relative to the phase position of the tong gear. Once the change has taken place, the clutch unit is usually closed again by the fitter with a tool, which involves considerable effort, since a gear housing often also has to be opened and closed again after the adjustment. In particular, a gear housing of the gear unit has to be opened in order to reach the coupling unit, and the adjustment requires both some skill on the part of the fitter and a longer downtime of the combing machine.
    The object of the invention is to develop a gear unit for a combing machine for the preparation of textile fibers, whereby the possibility is to be created to set the phase position of the pilgrim step movement relative to the phase position of the pincer gear and thus to the phase position of the circular comb roller in a simplified manner. Another object of the invention is to create a comber with an improved gear unit.
    This object is achieved based on a gear unit according to the preamble of claim 1 and based on a combing machine according to claim 11 with the respective characterizing features. Advantageous further developments of the invention are given in the dependent claims.
    The invention includes the technical teaching that the coupling unit has an electrically actuatable adjusting means with which the state of the coupling unit can be changed.
    The core idea of the invention is the development of the coupling unit in such a way that a fitter no longer has to open the coupling unit manually or with a tool in order to adjust the phase position of the tear-off cylinder gear relative to the phase position of the pincer gear, to close the coupling unit again manually and, if necessary, to open the gear housing of the gear unit and to close it again. With the coupling unit developed according to the invention, the coupling unit can be controlled by a simple electrical actuation of the actuating means so that it either directly releases the tear-off cylinder gear from the pincer gear or the coupling unit can even be directly electrically adjusted with the electrically actuated actuating means.
    Advantageously, the coupling unit has a first coupling part and a second coupling part, wherein the coupling parts are operatively connected to one another and wherein the operative connection between the coupling parts with the actuating means is temporarily releasable and / or changeable. One coupling part is connected to the tear-off cylinder gear, and the other coupling part is connected to the pincer gear. If the two coupling parts are connected to one another in a torque-proof manner in the operating state of the gear unit, the tear-off cylinder gear is also rigidly connected to the pincer gear.
    If the coupling is released by electrically activating the actuating means, the angular position of the first coupling part can be changed relative to the angular position of the second coupling part. The angular position change can take place, for example, from the outside of the gear unit and in particular its housing, for example with a scaled setting wheel or manually using a hand wheel formed in some other way.
    In an operating state of the coupling unit, the coupling parts are connected to one another in a torque-transmitting manner and, in particular, rigidly. According to a possible embodiment of the invention, the actuating means is designed as a switching element with which, when the switching element is electrically connected, the operating state can be converted into a switching state of the coupling unit by the angular position of the coupling parts being rotatable relative to one another. The actuating means according to the invention can be designed in a simple manner according to an advantageous embodiment as a simple switching element, for example by releasing a connecting means, which is designed as a bolt or the like, between the two coupling parts. For example, the switching element easily forms a lifting magnet which, when electrically connected, moves the bolt in order to release the coupling parts from one another in order to convert the operating state of the coupling unit to the switching state. A coupling part can then be rotated manually with respect to the further coupling part, for example using the handwheel, which can in particular be operated from the outside of a housing of the gear unit. If the electrical wiring of the switching element is withdrawn again, the switching element preferably automatically returns to the operating state so that the coupling parts are rigidly connected to one another again.
    According to a further embodiment, the electrically actuatable adjusting means is designed as an adjustment actuator with which the angular position of the coupling unit can be actively changed with respect to one another when the adjustment actuator is electrically actuated accordingly. For example, the adjustment actuator is designed in such a way that the angular position of the coupling parts relative to one another can also be changed during rotation of the coupling unit and / or during permanent torque transmission between the coupling parts, simply during operation of the combing head.
    For example, the adjustment actuator is set up for this purpose on or in connection with the coupling unit that it at least partially rotates with the coupling unit when it rotates. There is also the possibility that the adjustment actuator is designed in several parts, and that parts of the adjustment actuator are arranged in a stationary manner in the transmission unit, while other components of the adjustment actuator rotate with the rotation of the clutch unit. If the actuating means is designed as an adjustment actuator, there is the advantage that the coupling parts are not only released from each other by only energizing the electrically actuatable actuating means, for example, and can thus be transferred from a first to a second switching state, but a specific adjustment can already be achieved with an adjustment actuator Adjustment of the coupling parts to each other are generated so that no manual intervention is necessary to change the angular position of the coupling parts against each other.
    For example, the adjustment actuator can comprise a servomotor for this purpose, with which a coupling part can be adjusted in the angular position relative to the further coupling part.
    According to a particular embodiment of the transmission unit according to the invention, the actuating means is designed as a harmonic drive. Wave drives have the advantage that a rapidly rotating central control shaft changes the angular position of an internal gear relative to an external gear of the wave drive only slightly with a larger number of revolutions. In this way, an exact adjustment of the angular position of the coupling parts to one another can be achieved, so that, as a result, an exact adjustment of the phase position of the pilgrim step movement relative to the phase position of the tong apparatus and thus to the phase position of the circular comb shaft can also be set.
    For this purpose it is provided in particular that the harmonic drive has an internal gear which is in operative connection, for example, with the first coupling part or forms part of it, and that the harmonic drive has an external gear, which is connected, for example, to the second coupling part or a part thereof forms.
    According to the invention, a control unit is also set up, by means of which the electrically actuatable adjusting means can be controlled remotely from the clutch unit. If the adjusting means is designed as an adjustment actuator, the angular position of the two coupling parts can be adjusted with respect to one another by means of the control unit, for example in connection with a main control of the combing machine.
    Further measures improving the invention are illustrated in more detail below together with the description of a preferred exemplary embodiment of the invention with reference to the figures. 1 shows a perspective view of a gear unit of a comber with a clutch between a tear-off cylinder gear and a pincer gear, FIG. 2 shows a schematic view of the gear unit with a clutch unit with an adjusting means and with a control unit, FIG. 3 shows a schematic view of the clutch unit with an adjusting means in the form of an adjustment actuator, FIG. 4 a schematic view of the coupling unit with an adjusting means in the form of a harmonic drive, and FIG. 5 a schematic view of the coupling unit with an adjusting means in the form of an adjustment actuator, comprising a servomotor.
    The gear unit 1 according to Figure 1 is driven by a drive motor 11 which is connected to a drive input shaft 10 of the gear unit 1, the operative connection between the drive motor 11 and the drive input shaft 10 is shown as an example via a gear stage 28. The drive input shaft 10 drives A pincer gear 12, which is seated on a central shaft 35 and is connected to a pincer shaft 31 driven by a crank rocker 30, which finally drives an upper pincer gear 13, connects via a gear stage 29. By means of the upper nipper gear 13, upper nippers can be operated via a nipper output shaft 32 and lower nippers of the nipper apparatus of the combing head can be operated on the nipper shaft 31.
    The drive input shaft 10 is followed by further transmission shafts of an auxiliary transmission 40, via which further shafts or rollers can be operated, in particular for transporting the batt after the combing process, for example a table calender roller, a delivery roller and the like can be driven via the auxiliary transmission 40 so that the drive power of the drive motor 11 can also be used for this purpose. In addition, the rotational mass moment of inertia increases, as a result of which the gearbox operation becomes smoother, in particular the dynamics of the oscillating masses can be better balanced by the central drive.
    The gear unit 1 also has a tear-off cylinder gear 14 which comprises a planetary gear 33 as an essential component. Furthermore, the tear-off cylinder gear 14 has a cam gear 34 which initiates a back and forth movement in a component of the planetary gear 33. This results in the required pilgrim step movement at the shaft output of the planetary gear 33, and the tear-off cylinders 15 and 16, which are shown in simplified form and without an opposing cylinder, are connected to the shaft output.
    The central shaft 35 extends through the pincer gear 12 and through part of the tear-off cylinder gear 14, the operative connection of the tear-off cylinder gear 14 being separable from the pincer gear 12 by a coupling unit 17. The coupling unit 17 has a first coupling part 19 and a second coupling part 20, and the coupling unit 17 is set up to separate the two parts of the central shaft 35 from one another, so that the parts of the central shaft 35 can be rotated relative to one another in the angular position, so that the phase position of the Pilgrim step movement is variable relative to the movement of the forceps apparatus.
    Figure 2 shows the gear unit 1 with the essential components schematically in a block diagram, and the drive motor 11 is shown, which is drivingly connected to the pincer gear 12 via the gear stage 28, the pincer gear 12 serving to drive a pincer shaft 31 . The pincer gear 12 is connected to the tear-off cylinder gear 14 via the coupling unit 17, and the tear-off cylinder gear 14 serves to drive the tear-off cylinders 15 and 16.
    The coupling unit 17 has an electrically actuatable adjusting means 18 with which the state of the coupling unit 17 can be changed. The actuating means 18 is designed, for example, as a switching element 21 which, when electrically connected, can convert the operating state of the coupling unit 17 into a switching state in which the coupling parts 19 and 20 can be rotated relative to one another in their angular position. For example, the switching element 21 can serve to temporarily cancel the torque transmission between the coupling parts 19 and 20 when there is appropriate electrical shading.
    If the actuating means 18 has been electrically activated, for example in the form of the switching element 21, and the coupling parts 19 and 20 are separated from one another, a first part 35a of the central shaft 35 can be rotated relative to a second part 35b of the central shaft 35. A control unit 27, which is arranged in particular outside the transmission unit 1, is used to activate and control the actuating means 18, in particular in the form of the electrical switching element 21.
    If the coupling unit 17 with the coupling parts 19 and 20 is separated, and this is thus in the switching state, a rotary movement can be initiated in the central shaft 35 via a handwheel 36, shown as an example in Figure 1, to an angular position of the first To rotate coupling parts 19 relative to the second coupling part 20.
    Figure 3 shows an alternative embodiment of the actuating means 18 in the form of an adjustment actuator 22, and the adjustment actuator 22 is in operative connection with the second coupling part 20 so that the rotational position of the second coupling part 20 relative to the first coupling part 19 can be rotated automatically when the adjustment actuator 22 is supplied with current accordingly. It is thus possible in a simple manner to rotate the rotational position of the second part 35b with respect to the first part 35a of the central shaft 35.
    The illustration in FIG. 3 shows the arrangement of the coupling unit 17 with the actuating means 18 only schematically. The adjustment actuator 22 in the form of a servomotor 23 with a corresponding operative connection to the second coupling means 20 can be designed so that the adjustment actuator 22, for example, rotates with the coupling unit 17 when the gear unit 1 is in the operating position and when the central shaft 35 rotates.
    For example, it is conceivable that electrical contacts designed as sliding contacts are brought up to corresponding slip rings of the rotating coupling unit 17 with a further mechanical adjusting means in order to activate the adjustment actuator 22 at the moment of contact. If the desired angular position between the parts 35a and 35b of the central shaft 35 has been adjusted, the sliding contacts can be removed from the coupling unit 17 again and the servomotor 23 is deactivated again. The servomotor 23 can be designed as an operative connection between the coupling parts 19, 20 and have a self-locking so that when the servomotor 23 is not energized, the two coupling parts 19 and 20 are connected to one another in a torsionally rigid manner.
    Figure 4 shows a further embodiment for the configuration of the adjusting means 18 as part of a coupling unit 17, and the adjusting means 18 forms a harmonic drive 24. The harmonic drive 24 has a control disk 37 as a central adjusting means, which can be rotated about an axis of rotation 38, wherein the axis of rotation 38 can coincide with the axis of rotation of the central shaft 35. The control disk 37 has an elliptical outer circumference, and a rotary movement of the control disk 37 is transmitted via rolling elements 39 to an elastically deformable external gear 26, which executes the elliptical movement in an elastically deforming and circumferential manner when the control disk 37 rotates. The external gear wheel 26 is thereby in engagement with an internal gear wheel 25 at diametrically opposite positions, the tooth engagement rotating radially at the two diametrically opposite positions.
    By a different number of teeth of the internal gear 25 and the external gear 26 results as a result of the rotation of the control disk 37, a slight change in the angular position of the internal gear 25 relative to the external gear 26 with continuous rotation of the control disk 37. For example, a first coupling part 19 with the external gear 26 and a second coupling part 20 are connected to the internal gear 25. The control disk 37 can be controlled with a servomotor and, for example, set in rotation through a hollow shaft with an adjusting shaft until the desired angular adjustment between the first and second coupling parts 19 and 20 has taken place. The torque transmission between the first and second coupling parts 19 and 20 results from the meshing of the teeth between the internal gear 25 and the external gear 26. Such a so-called harmonic drive 24 is also known as a “harmonic drive”.
    FIG. 5 once again shows, in a simplified form, a servomotor 23 for forming an adjustment actuator 22, with which an actuating means 18 is formed which can rotate with the coupling unit 17. For example, the servomotor 23 acts on a second coupling part 20, which can be rotated with the servomotor 23 relative to the rotational position of the first coupling part 19. In this embodiment, too, the possibility can advantageously be used to temporarily activate the servomotor 23 via slip rings through sliding contacts that can be moved closer, with the forward and backward adjustment of the angular adjustment of the coupling parts 19 and 20 to each other by a corresponding polarity reversal of the current supply to the sliding contacts can.
    The invention is not limited in its implementation to the preferred embodiment specified above. Rather, a number of variants are conceivable which make use of the solution shown even in the case of fundamentally different designs. All of the features and / or advantages arising from the claims, the description or the drawings, including structural details or spatial arrangements, can be essential to the invention both individually and in a wide variety of combinations.
    Reference number
    1 gear unit 10 drive input shaft 11 drive motor 12 pincer gear 13 upper pincer gear 14 tear-off cylinder gear 15 tear-off cylinder 16 tear-off cylinder 17 coupling unit 18 actuating means 19 first coupling part 20 second coupling part 21 switching element 22 adjusting actuator 23 servomotor 24 wave gear 25 internal gear 26 external gear 27 control unit 28 gear stage 29 gear 30 crank arm 31 Pincer shaft 32 Pincer output shaft 33 Planetary gear 34 Cam gear 35 Central shaft 35a, b, first, second part 36 Handwheel 37 Control disk 38 Axis of rotation 39 Rolling element 40 Auxiliary gear
    权利要求:
    Claims (12)
    [1]
    1. Gear unit (1) for a combing machine in spinning preparation, the gear unit (1) having a drive input shaft (10) which can be brought into operative connection with a drive motor (11), and the gear unit (1) having a pincer gear (12) which is drivingly connected to the drive input shaft (10) and is set up to drive a tong apparatus, the gear unit (1) further comprising a tear-off cylinder gear (14) which is set up to drive at least one tear-off cylinder (15, 16), and wherein the tear-off cylinder gear (14) is drivingly connected to the pincer gear (12) by means of a coupling unit (17), characterized in that the coupling unit (17) has an electrically actuated adjusting means (18) with which the state of the coupling unit (17) can be changed .
    [2]
    2. Transmission unit (1) according to claim 1, characterized in that the coupling unit (17) has a first coupling part (19) and a second coupling part (20), wherein the coupling parts (19, 20) are operatively connected to one another and wherein the operative connection between the coupling parts (19, 20) can be temporarily released and / or changed with the adjusting means (18).
    [3]
    3. Transmission unit (1) according to claim 1 to 2, characterized in that the coupling parts (19, 20) are connected to each other in an operating state to transmit torque, the actuating means (18) being designed as a switching element (21) with which in electrical Wiring of the switching element (21) the operating state can be converted into a switching state of the coupling unit (17) in which the coupling parts (19, 20) can be rotated relative to one another in their angular position.
    [4]
    4. Gear unit (1) according to one of claims 1 to 3, characterized in that the electrically actuable adjusting means (18) is designed as an adjustment actuator (22) with which the angular position of the coupling parts (19, 20) can be changed in a targeted manner.
    [5]
    5. Gear unit (1) according to claim 4, characterized in that the adjustment actuator (22) is designed so that the angular position even during a rotation of the coupling unit (17) and / or during a permanent torque transmission between the coupling parts (19, 20) of the coupling parts (19, 20) can be changed relative to one another.
    [6]
    6. Transmission unit (1) according to claim 4 or 5, characterized in that the adjusting actuator (22) is set up on or in connection with the coupling unit (17) that it rotates at least partially with the rotation of the coupling unit (17).
    [7]
    7. Gear unit (1) according to one of claims 4 to 6, characterized in that the adjustment actuator (22) comprises a servomotor (23) with which a coupling part (19) can be adjusted in the angular position against the further coupling part (20).
    [8]
    8. Gear unit (1) according to one of claims 4 to 7, characterized in that the adjusting means (21) is designed as a harmonic drive (24).
    [9]
    9. Gear unit (1) according to claim 8, characterized in that the harmonic drive (24) has an internal gear (25) which is in operative connection with the first coupling part (19) or forms part of it and that the harmonic drive (24) is a Has external gear (26) which is in operative connection with the second coupling part (19) or forms part of the same.
    [10]
    10. Gear unit (1) according to one of the preceding claims, characterized in that a control unit (27) is set up by means of which the electrically actuatable adjusting means (18) can be controlled remotely from the coupling unit (17).
    [11]
    11. Combing machine with a gear unit (1) for processing textile fibers according to one of the preceding claims.
    [12]
    12. Combing machine according to claim 11, characterized in that the combing machine has several combing units with respective gear units (1), the control unit (27) being set up centrally and being designed to control all electrically actuatable actuating means (18) of each gear unit (1).
    类似技术:
    公开号 | 公开日 | 专利标题
    EP0531648B1|1995-03-22|Device for folding and cutting a printed web
    EP0374723B1|1994-09-21|Combing machine
    EP1047874B1|2004-07-28|Electric motor with drive
    EP1127230B1|2002-09-18|Gearbox for a motor vehicle, especially a gearbox with a dual clutch and method for operating said gearbox
    DE102012011030A1|2013-12-05|Device on a combing machine with a drive device for generating a pilgrim movement for the Abreißwalzen
    DE19927521A1|2000-06-08|Electrical machine
    EP1930149A1|2008-06-11|drive for eccenter press
    DE102015209521A1|2015-12-24|Offset printing machine
    EP0453868B1|1994-06-15|Device to adjust the folding flaps of a folding flap cylinder
    EP2121293B1|2012-02-22|Device for the variable driving of a hollow shaft with an internal spindle
    DE102015013528B3|2017-01-26|Transmission arrangement and method for operating a motor vehicle
    DE102020109813A1|2021-10-14|Gear unit for a comber and comber with such a gear unit
    DE19511335A1|1995-10-12|Drive for underthread mechanism on sewing machine
    WO2017006196A1|2017-01-12|Individual drive for detaching rollers of a combing machine
    DE102015117200B4|2018-03-15|Embossing press and method for its operation
    DE102020112188A1|2021-11-11|Gear unit for a comber and comber with gear unit
    DE102020117233A1|2021-12-30|Gear unit for a comber and comber with gear unit
    DE69826926T2|2005-10-20|Reduction gearbox for a concrete mixer
    EP0254847B1|1991-08-14|Driving device for the front grippers of a printing machine
    WO2012052201A1|2012-04-26|Drive device
    EP2913427A1|2015-09-02|Combing machine with a feed cylinder driven by an electric motor
    EP1484272A1|2004-12-08|Drive for a paddle wheel or a an outlet conveyor
    DE1761389A1|1971-06-03|Device for adjusting the distribution cylinder stroke in inking units of rotary printing machines
    DE102018218054A1|2020-04-23|Fluid power valve device and method for operating a fluid power valve device
    EP0701013A1|1996-03-13|Drive apparatus in a combing machine
    同族专利:
    公开号 | 公开日
    DE102020109813A1|2021-10-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CS194869B1|1974-03-08|1979-12-31|Tomas Bohacek|Apparatus for stopping an electrically driven machine in a predetermined position of its operating element such as sewing machine needle|
    DE10355097A1|2003-11-24|2005-08-04|Volkswagen Ag|Torque transfer device|
    DE102005015657A1|2005-04-06|2006-10-12|Bayerische Motoren Werke Ag|Electric machine and method for field and armature position of a permanent-magnet electric machine|
    CH700285A2|2009-01-26|2010-07-30|Rieter Ag Maschf|Drive device for detaching a combing machine.|
    DE102012011030A1|2012-06-05|2013-12-05|Trützschler GmbH & Co Kommanditgesellschaft|Device on a combing machine with a drive device for generating a pilgrim movement for the Abreißwalzen|
    DE102014001528A1|2014-02-07|2015-08-13|Festo Ag & Co. Kg|Axle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102020109813.8A|DE102020109813A1|2020-04-08|2020-04-08|Gear unit for a comber and comber with such a gear unit|
    [返回顶部]