EP4335954A1 - Unité d'engrenage pour une peigneuse et peigneuse dotée d'une telle unité d'engrenage - Google Patents

Unité d'engrenage pour une peigneuse et peigneuse dotée d'une telle unité d'engrenage Download PDF

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Publication number
EP4335954A1
EP4335954A1 EP23184694.0A EP23184694A EP4335954A1 EP 4335954 A1 EP4335954 A1 EP 4335954A1 EP 23184694 A EP23184694 A EP 23184694A EP 4335954 A1 EP4335954 A1 EP 4335954A1
Authority
EP
European Patent Office
Prior art keywords
gear
input shaft
tear
camshaft adjuster
gear unit
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.)
Pending
Application number
EP23184694.0A
Other languages
German (de)
English (en)
Inventor
Dr. Andreas Sobotka
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.)
Truetzschler Group SE
Original Assignee
Truetzschler Group SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Truetzschler Group SE filed Critical Truetzschler Group SE
Publication of EP4335954A1 publication Critical patent/EP4335954A1/fr
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/26—Driving arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/16—Nipper mechanisms

Definitions

  • the invention relates to a gear unit for a combing machine in spinning preparation according to claim 1, and a combing machine 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 has a tear-off cylinder gear, which to drive at least one tear-off cylinder and can be driven via a drive train from the drive input shaft, the tear-off cylinder gear being designed to set the at least one tear-off cylinder into a
  • the main challenge in designing such a gear unit is the generation of a so-called vocational step movement for the tear-off cylinders of the combing machine.
  • the planetary gear is initially driven via a gear input with a continuous rotary movement, which is driven at least indirectly by the drive input shaft.
  • another component of the planetary gear for example its sun gear, planet carrier or ring gear, is driven in an oscillating manner via a cam gear, which ultimately creates the vocational step movement at a gear output of the planetary gear, which is introduced into the tear-off cylinder.
  • the reciprocating movement of the pliers apparatus is generated with the pliers gear, which comprises a crank rocker with an eccentric, the crank rocker usually being accommodated on a central shaft, which is also at least indirectly connected to the drive input shaft in a driven manner, for example via at least one or another gear stage.
  • a round comb roller can be driven in rotation with the gear unit, with which the fiber beard of the torn textile strand is combed out.
  • other moving components are driven via the gear unit, for example a cleaning brush and/or further rollers, for example table calender rolls, delivery rolls and/or upper tongs shafts as well as winding shafts.
  • a secondary gear is used for this purpose, which is also connected to the drive input shaft and is subordinate to the actual drive train for the pliers and the tear-off cylinders.
  • the tear-off cylinders must first be rotated backwards through a certain angle during each combing cycle, i.e. usually during each revolution of the round combing roller, and then rotated in the opposite direction and forwards again at a slightly larger angle, which is referred to as the mit step movement and in sum the sliver conveyed forward out of the combing machine.
  • this movement of the tear-off cylinder is generated mechanically in the gear unit with the features described above and is derived via a clutch from the rotation of the drive input shaft, in this respect directly from the central shaft and thus also from the round comb roller, the latter shafts being used to operate the pliers gear operated synchronously.
  • a necessary adjustment requirement in the gear unit results from the phase position of the mit step movement of the tear-off cylinders relative to the oscillatory movement of the pliers and the rotational position of the round comb roller.
  • a coupling unit can be provided which forms a driving connection between the tear-off cylinder gear and the pliers gear.
  • the clutch is usually opened by a fitter using a tool in order to also manually change a phase position of the tear-off cylinder gear relative to the phase position of the pliers gear by rotating the two parts of the central shaft of the drive train against each other become. If the rotation has taken place with the appropriate phase position, the coupling unit is usually closed again by the fitter using a tool, which involves considerable effort, since a gearbox housing often also has to be opened and closed again after the adjustment, and the Adjustment requires some skill from the fitter as well as a longer downtime of the combing machine.
  • a possible version of such a coupling is shown, for example, in: EP 3 514 274 A1 .
  • Another version of an adjustable coupling is shown in: DE 10 2020 109 813 A1 , in which it is provided that the clutch unit has an electrically actuated adjusting means with which the state of the clutch unit can be changed.
  • the coupling unit has a first coupling part and a second coupling part, the coupling parts being operatively connected to one another and the operative connection between the coupling parts being temporarily detachable and/or changeable using the adjusting means is.
  • the coupling parts can be connected to one another in a torque-transmitting operating state, the actuating means being designed as a switching element, with which the operating state can be transferred from the torque-transmitting operating state to a switching state of the clutch unit when the switching element is electrically connected, in which the coupling parts can be rotated relative to one another in their angular position are, insofar as they are separated from each other.
  • the electrically actuated adjusting means is designed, for example, as an adjustment actuator with which the angular position of the coupling parts relative to one another can be changed in a targeted manner.
  • the structural design of the clutch unit with such an adjustment actuator is complex and no standard parts from other clutches, such as those used in car construction, can be used.
  • the object of the invention is to develop a gear unit for a combing machine for textile preparation, with the aim of creating the possibility of adjusting the phase position of the vocational step movement in a simplified manner relative to the phase position of the pliers gear and thus to the phase position of the round comb roller. Furthermore, it is the object of the invention to create a combing machine with an improved gear unit, which allows an improved adjustment of the said phase position and, for this purpose, in particular uses standard components available on the market.
  • the invention provides that a camshaft adjuster of an internal combustion engine is set up in the drive train between the drive input shaft and the tear-off cylinder gear, with which the phase position of at least one input shaft feeding the tear-off cylinder gear can be adjusted.
  • the invention makes use of the camshaft adjusters known for internal combustion engines of passenger cars for the gear unit for a combing machine from spinning preparation, since camshaft adjusters for internal combustion engines of passenger cars are designed to change the phase position of a camshaft relative to the phase position of a crankshaft of the internal combustion engine.
  • the change in the phase position of the camshaft occurs during the rotation of the crankshaft driving the camshaft and the camshaft itself, i.e. during ongoing operation.
  • the invention provides for such a camshaft adjuster, as is known from internal combustion engines for cars, to be set up in the drive train between the drive input shaft and the break-off cylinder gear, so that the camshaft adjuster can be used to adjust the phase position of at least one input shaft feeding the break-off cylinder gear.
  • the input shaft can do this Be part of the drive train or the break-off cylinder gear itself.
  • the camshaft adjuster can be designed in a manner known per se and essentially unchanged in the way that it is used in internal combustion engines or is generally known from these.
  • Camshaft adjusters for internal combustion engines are known in various modes of operation and structural designs.
  • the camshaft adjuster can have helical teeth or a trapezoidal thread spindle, or the camshaft adjuster has a vane cell system, which also allows adjustment of two parts of the input shaft, in which the camshaft adjuster is integrated and can rotate the two parts relative to each other.
  • an electrical adjusting means can be set up which axially displaces either the trapezoidal thread spindle or a spindle nut relative to the trapezoidal thread spindle.
  • the axial displacement can of course also take place hydraulically or in another way, so that a corresponding actuator can be set up.
  • the camshaft adjuster has a vane cell system
  • a first chamber in the vane cell system can be acted upon in order to adjust a phase position in a first direction, and a second chamber can be set up which is acted upon with fluid in order to achieve an adjustment in a second direction to reach.
  • Such vane cell systems are operated with hydraulic oil, for example, in that the respective chambers formed by the vane cells are alternately supplied with hydraulic oil. Consequently, depending on the design, the camshaft adjuster can be connected to an electrically actuated adjusting means and to a hydraulic adjusting means in order to adjust the phase position in the input shaft of the break-off cylinder gear.
  • the main effect of the invention is to set up the connection between the parts of the input shaft via a camshaft adjuster from an internal combustion engine and to adjust the phase position relative to one another, so that a fitter no longer has to open and close a clutch unit manually or with a tool and If necessary, no gearbox housing of the gearbox unit has to be opened and closed again.
  • the camshaft adjuster used according to the invention the phase position of the input shaft on the side of the tear-off cylinder gear can be changed by a simple electrical or fluid actuation of the camshaft adjuster in such a way that the desired phase position and thus the soldering time can be adjusted remotely relative to the pliers play.
  • a structural unit standardized for internal combustion engines can be used in a textile machine with a camshaft adjuster.
  • the gear unit has a cam gear which is arranged or designed on the input shaft of the tear-off cylinder gear or as a component thereof, the camshaft adjuster being arranged on the input shaft or at least indirectly drivingly interacting with it.
  • the camshaft adjuster When the camshaft adjuster is actuated, the phase position of the break-off cylinder gear can be adjusted relative to the leading drive train, whereby the arrangement of the camshaft adjuster in conjunction with the cam gear causes the camshaft adjuster to carry out a continuous movement, so that the phase position of the second part of the input shaft also occurs in the oscillating movement can be adjusted in the same way as with a continuously rotating movement.
  • the electrically actuated adjusting means or the hydraulic adjusting means can be designed such that the angular position of the input shaft relative to a drive element of the drive train can be changed even during rotation or oscillation of the camshaft adjuster and/or during torque transmission via the camshaft adjuster.
  • the angular position of the input shaft describes in particular the part of the input shaft that is connected to the tear-off cylinder gear.
  • the camshaft adjuster can have a displacement element that runs in particular axially to the input shaft and is connected to a spindle nut in an axial force-transmitting manner via a pivot bearing.
  • an adjusting means can be set up that is connected in a stationary manner to the displacement element, which is also arranged in a stationary position, and only via the pivot bearing can the axial displacement movement of the displacement element be transmitted to rotating parts of the camshaft adjuster, for example to the spindle nut, which, together with the trapezoidal thread spindle, has the same rotation - or oscillatory movement.
  • the trapezoidal thread spindle and thus also the spindle nut can be set up coaxially with the input shaft of the tear-off cylinder gear or the trapezoidal thread spindle forms an extension of the input shaft, on which the camshaft adjuster is ultimately mounted. If the input shaft of the camshaft adjuster carries out an oscillating movement, the camshaft adjuster or its rotating components can also carry out an oscillating movement, which is transmitted to the tear-off cylinder gear.
  • the spindle nut is connected in a rotationally rigid manner to the drive element of the drive train or is at least designed in one piece with it, the drive element being at least indirectly operatively connected to a crank rocker of the gear unit and being continuously driven by means of this.
  • a control unit is set up by means of which the camshaft adjuster can be controlled at least indirectly and/or the control unit is connected to a machine control of the combing machine or is designed as part of the machine control of the combing machine.
  • the phase position of the input shaft of the tear-off cylinder gear can be adjusted via the control unit of the camshaft adjuster or directly via the machine control of the combing machine by directly controlling the camshaft adjuster with the machine control or the control unit.
  • the control can be carried out by means of the electrically actuated actuating means or by means of a hydraulic actuating means, depending on the design of the camshaft adjuster, i.e. based on helical gearing or a trapezoidal thread or based on a vane cell system or a wave gear.
  • the invention is further directed to a combing machine for textile preparation with a gear unit according to the invention as described above.
  • the combing machine can have several combing heads with respective gear units, the control unit being set up centrally and preferably designed to control all camshaft adjusters of each gear unit.
  • the gear unit 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 being shown as an example via a gear stage 28.
  • the drive input shaft 10 drives via a gear stage 29 on a central shaft 35 seated pliers gear 12, to which a pliers shaft 31 driven via a crank rocker 30 is connected, which ultimately drives an upper pliers gear 36.
  • an upper pliers can be operated via a pliers output shaft 32 and a lower pliers of the pliers apparatus of the combing head can be operated on the pliers shaft 31.
  • the drive input shaft 10 is connected to further transmission shafts of an auxiliary gear 40, via which further shafts or rollers can be operated, in particular for transporting the fiber web after the combing process, for example a table calender roller, a delivery roller and the like can be used via the auxiliary gear 40 are driven, so that this is also the case Drive power of the drive motor 11 can be used.
  • the rotational mass moment of inertia increases, which means that the transmission runs more smoothly; in particular, the central drive can better balance the dynamics of the oscillating masses.
  • the transmission unit 1 also has, as part of the drive train 13, a tear-off cylinder gear 14, which includes 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 into a component of the planetary gear 33. This results in the required vocational 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 as shafts and without counter-cylinders, are connected to the shaft output.
  • the central shaft 35 extends through the pliers gear 12 and through part of the tear-off cylinder gear 14, the operative connection of the tear-off cylinder gear 14 from the pliers gear 12 being separable according to the invention by a camshaft adjuster 17 of an internal combustion engine.
  • the camshaft adjuster 17 is set up to rotate two separate parts of the central shaft 35 in the angular position relative to one another, so that the phase position of the mit step movement of the tear-off cylinder gear 14 can be changed relative to the phase position in the movement of the pliers apparatus in order to be able to adjust the soldering time of the fiber material relative to the pliers cycle .
  • FIG. 2 shows a replacement diagram of the gear unit 1 of the combing machine with the arrangement of the camshaft adjuster 17.
  • the gear unit 1 is used to drive the tear-off cylinders 15, 16, the tong shaft 31 and the round comb 41 of the combing machine.
  • the drive motor 11 drives the central shaft 35 via the gear stage 28, for which the central shaft 35 is operatively connected to the central shaft 35 by means of a crank rocker 30 in order to generate the corresponding movement in the pliers.
  • the round comb 41 is also driven via the central shaft 35 via a further gear stage 42.
  • a drive train 13 is formed from the central shaft 35 via further gear stages 43, which ultimately drives the tear-off cylinder gear 14 by means of a drive element 23.
  • the drive train 13 includes an input shaft 21, which is driven by the drive element 23 and on which the camshaft adjuster 17 is arranged.
  • the camshaft adjuster 17 is followed by a cam gear 34, which initiates an oscillatory movement into the tear-off cylinder gear 14 and is also driven by the input shaft 21 via the camshaft adjuster 17.
  • the movement function of the cam gear 34 is picked up via a cam lever 44, and a sun gear shaft 45 of the tear-off cylinder gear 14 is arranged on the cam lever 44, which also includes the planetary gear 33.
  • the continuous movement of a planet carrier 46 of the planetary gear 33 and the oscillating movement of the sun gear shaft 45 is summed up by the planet gears 47 and transmitted to the driving sun gear 48. Finally, this movement is transmitted to the tear-off cylinders 15, 16 via a further gear stage 49.
  • the soldering time indicates the time difference between the movement of the pliers shaft 31 and the tear-off cylinders 15, 16. This can also be described as a phase offset between the two motion functions of the respective elements. Since the pliers shaft 31 is driven by the crank rocker 30 via the central shaft 35 and the tear-off cylinders 15, 16 are driven via the cams of the cam gear 34 and the sun gear shaft 45, the input shaft 21 and the central shaft 35 are crucial for the phase offset. In order to adjust the combing machine to different materials to be processed, this phase offset must be adjustable. This adjustment is made possible with the camshaft adjuster 17.
  • Figure 3 shows a schematic view of the transmission unit 1 with a camshaft adjuster 17 and with a control unit 27, via which the camshaft adjuster 17 can be acted upon with an adjusting means 18.
  • the view 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 pliers gear 12 via the gear stage 28, the pliers gear 12 being used to drive a pliers shaft 31.
  • the pliers gear 12 is connected to the tear-off cylinder gear 14 via the camshaft adjuster 17, and the tear-off cylinder gear 14 includes the planetary gear 33 and serves to drive the tear-off cylinders 15 and 16.
  • the camshaft adjuster 17 has an electrically actuated adjusting means 18 with which the state of the camshaft adjuster 17 can be changed.
  • the adjusting means 18 is designed, for example, to change the operating state of the camshaft adjuster 17 when electrically connected and thus to adjust the phase position of the first and second parts 21a, 21b of the input shaft 21 relative to one another.
  • the actuating means 18 has been electrically activated, for example in the form of an actuator, the first part 35a of the central shaft 35 can be rotated relative to the second part 35b of the central shaft 35.
  • the control unit 27 is used to activate and control the actuating means 18, which is arranged in particular outside the gear unit 1 and can be connected to a central control of the textile machine, forms part of it or is itself formed by a central control of the textile machine.
  • Figure 4 shows a cross-sectional view of a camshaft adjuster 17 in the version with a trapezoidal thread spindle 19.
  • the trapezoidal thread spindle 19 is located in an extension of the input shaft 21 of the tear-off cylinder gear and can be made in one piece with it, with a drive element 23 being rotatably but not torque-transmitting on the input shaft 21 via the additional gear stage 43, as in Figure 2 shown is driven.
  • the drive element 23 is connected in a torsionally rigid manner to a spindle nut 26, which is finally brought into threaded engagement with the trapezoidal thread spindle 19, while the drive element 23 is rotatably seated on the input shaft 21 by means of a bearing 55.
  • a displacement element 24 is axially displaceable in the direction of extension of the input shaft 21, with a rotary bearing 25 being provided to form a rotary feedthrough, so that the spindle nut 26 can carry out the rotary movement together with the trapezoidal thread spindle 19, while the displacement element 24 does not carry out any rotary movement and is only axially displaceable .
  • the adjusting means 18, shown only schematically, is used to generate the axial displacement, for example in the form of an actuator, an adjusting motor or the like. If the adjusting means 18 is activated, the displacement element 24 and thus also the spindle nut 26 carry out an axial movement according to the double arrow shown, whereby the phase position of the drive element 23 changes to the phase position of the input shaft 21.
  • the cams of the cam gear 34 are also received on the input shaft 21 by means of a feather key 56, so that the camshaft adjuster 17 forms a structural unit with the cam gear 34.
  • FIG. 5 and 6 show a further and therefore alternative embodiment of a camshaft adjuster 17 based on a vane cell system 20.
  • Figure 5 shows a view of the vane cell system 20 with an outer part 50 and with an inner part 51 with respective inwardly and outwardly projecting wings 52 and 53, between which fluid chambers 54 are formed. If the fluid chambers are alternately subjected to fluid pressure, a rotation of the inner part 51 relative to the outer part 50 can be generated.
  • the inner part 51 is connected to the input shaft 21, and drives the gear of the gear stage 43 according to Figure 2 or Figure 4 the outer part 50, the phase position of the input shaft 21 relative to the gear of the gear stage 43 can also be changed in a simple manner.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP23184694.0A 2022-08-31 2023-07-11 Unité d'engrenage pour une peigneuse et peigneuse dotée d'une telle unité d'engrenage Pending EP4335954A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022122036.2A DE102022122036A1 (de) 2022-08-31 2022-08-31 Getriebeeinheit für eine Kämmmaschine und Kämmmaschine mit einer solchen Getriebeeinheit

Publications (1)

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EP4335954A1 true EP4335954A1 (fr) 2024-03-13

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EP23184694.0A Pending EP4335954A1 (fr) 2022-08-31 2023-07-11 Unité d'engrenage pour une peigneuse et peigneuse dotée d'une telle unité d'engrenage

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EP (1) EP4335954A1 (fr)
DE (1) DE102022122036A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010083618A1 (fr) * 2009-01-26 2010-07-29 Maschinenfabrik Rieter Ag Dispositif d'entraînement destiné aux cylindres arracheurs d'une peigneuse
DE102012011030A1 (de) 2012-06-05 2013-12-05 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Kämmmaschine mit einer Antriebsvorrichtung zur Erzeugung einer Pilgerschrittbewegung für die Abreißwalzen
EP3514273A1 (fr) * 2018-01-23 2019-07-24 Maschinenfabrik Rieter AG Dispositif d'entraînement pour une machine de peignage
EP3514274A1 (fr) 2018-01-23 2019-07-24 Maschinenfabrik Rieter AG Engrenage doté d'un dispositif de réglage pour une machine de peignage
DE102020109813A1 (de) 2020-04-08 2021-10-14 Trützschler GmbH & Co Kommanditgesellschaft Getriebeeinheit für eine Kämmmaschine und Kämmmaschine mit einer solchen Getriebeeinheit
WO2022002488A1 (fr) * 2020-06-30 2022-01-06 TRüTZSCHLER GMBH & CO. KG Boîte à engrenages pour une peigneuse et peigneuse comprenant une boîte à engrenages

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010083618A1 (fr) * 2009-01-26 2010-07-29 Maschinenfabrik Rieter Ag Dispositif d'entraînement destiné aux cylindres arracheurs d'une peigneuse
DE102012011030A1 (de) 2012-06-05 2013-12-05 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Kämmmaschine mit einer Antriebsvorrichtung zur Erzeugung einer Pilgerschrittbewegung für die Abreißwalzen
EP3514273A1 (fr) * 2018-01-23 2019-07-24 Maschinenfabrik Rieter AG Dispositif d'entraînement pour une machine de peignage
EP3514274A1 (fr) 2018-01-23 2019-07-24 Maschinenfabrik Rieter AG Engrenage doté d'un dispositif de réglage pour une machine de peignage
DE102020109813A1 (de) 2020-04-08 2021-10-14 Trützschler GmbH & Co Kommanditgesellschaft Getriebeeinheit für eine Kämmmaschine und Kämmmaschine mit einer solchen Getriebeeinheit
WO2022002488A1 (fr) * 2020-06-30 2022-01-06 TRüTZSCHLER GMBH & CO. KG Boîte à engrenages pour une peigneuse et peigneuse comprenant une boîte à engrenages

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