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EP4172391B1 - Boîte à engrenages pour une peigneuse et peigneuse comprenant une boîte à engrenages - Google Patents

Boîte à engrenages pour une peigneuse et peigneuse comprenant une boîte à engrenages Download PDF

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Publication number
EP4172391B1
EP4172391B1 EP21729836.3A EP21729836A EP4172391B1 EP 4172391 B1 EP4172391 B1 EP 4172391B1 EP 21729836 A EP21729836 A EP 21729836A EP 4172391 B1 EP4172391 B1 EP 4172391B1
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EP
European Patent Office
Prior art keywords
gear
gear unit
unit
shaft
main drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21729836.3A
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German (de)
English (en)
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EP4172391A1 (fr
Inventor
Dirk Meier
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
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Truetzschler Group SE
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Publication date
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Publication of EP4172391A1 publication Critical patent/EP4172391A1/fr
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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
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously
    • D01G19/20—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously operating to draw-off fibres intermittently
    • 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

Definitions

  • the invention relates to a gear unit of a combing machine for spinning preparation according to the preamble of claim 1.
  • the invention relates to a gear unit comprising a main drive shaft which can be driven via a main drive wheel by means of a drive motor, a tongs shaft which can be set into an oscillating back and forth rotational movement by means of a crank rocker connected to the main drive wheel, a coupling rocker which is connected to the tongs shaft in such a way that the coupling rocker can be rotated in an oscillating manner by the tongs shaft, and wherein the gear unit further comprises a tear-off cylinder gear which is designed to drive at least one tear-off cylinder, and wherein the tear-off cylinder gear is continuously driven via the main drive shaft, and wherein the oscillating movement can be introduced into the tear-off cylinder gear by means of the coupling rocker, which can be superimposed on the continuous drive by means of the main drive shaft in the tear-off cylinder gear, so that a
  • a gear unit for a combing machine for spinning preparation has, as its essential structural components, a main drive shaft that drives a pincer gear.
  • the pincer gear serves to drive a pincer apparatus with an upper pincer and a lower pincer.
  • the gear unit has a detaching cylinder gear for driving two detaching cylinders, which, together with counter-detaching cylinders, form respective cylinder pairs between which the fiber product to be combed is guided.
  • the detaching cylinder gear is usually designed as a planetary gear in a manner known per se.
  • the CN 202954168 U and CH 714582 A1 disclose combing machines in which the angular velocity and angular acceleration of the phase progression of the detaching cylinders is changed over the comb clearance by using non-circular gears or cam discs to drive the detaching cylinders.
  • DE 19612808 A1 discloses a combing machine in which the mit step movement of the tear-off rollers can be changed by a modulation drive.
  • the key challenge in designing such a gear unit is generating a so-called pilger-step motion for the combing machine's detaching cylinders and influencing the motion curve of the pilger-step motion as simply as possible.
  • the planetary gear is permanently driven with a continuous rotary motion via the main drive shaft.
  • This continuous drive motion is superimposed with a further oscillating motion, which is also introduced into the detaching cylinder gear by means of a sliding-rod unit, for example, via another component of the planetary gear such as the sun gear.
  • the oscillating motion is picked up by the sliding-rod unit from the oscillating tongs shaft.
  • the pickup is made via the coupling rocker and other components, which is energetically advantageous since the oscillating tongs shaft is necessary to drive the tongs apparatus anyway.
  • the coupling rocker which oscillates over the pliers shaft, is mounted on an eccentric bushing which is rotatably mounted on the main drive shaft.
  • the pliers shaft is set into an oscillating back and forth movement by means of a crank rocker, whereby the crank rocker is connected to the main drive wheel in a rotating manner, and the main drive wheel is drivingly connected to the main drive shaft, which is ultimately driven by the drive motor.
  • the breakaway cylinder gear can be designed as a planetary gear, and the breakaway cylinders are driven equally via a distribution stage, for example consisting of spur gears, via the output shaft of the breakaway cylinder gear, whereby the breakaway cylinders execute a fixed movement curve of the vocational step movement, which directly follows the movement curve on the output shaft of the breakaway cylinder gear.
  • a distribution stage for example consisting of spur gears
  • the object of the invention is to further develop a gear unit of a combing machine for spinning preparation, wherein the motion curve of the piling step movement is to be easily influenced by a gear structure according to the preamble of claim 1.
  • the influence is to be executable by means of an electrical control unit.
  • the object of the invention is to provide a combing machine with such an improved gear unit.
  • the invention includes the technical teaching that an actuating gear unit and a control motor are provided, wherein the output shaft of the tear-off cylinder gear is operatively connected to the actuating gear unit and wherein the control motor is designed to introduce a rotary movement into the actuating gear unit, which can be superimposed on the output shaft of the tear-off cylinder gear with the actuating gear unit.
  • the core idea of the invention is the further development of the gear unit of a combing head of a combing machine with an adjusting gear unit that is operatively connected to a control motor.
  • This allows the electrically actuated control motor to influence the curve of the vocational step movement in the detaching cylinders, while the curve of the basic mit step movement on the output shaft of the detaching cylinder gear can remain unchanged.
  • the angular velocity and angular acceleration of the phase curve of the detaching cylinders can be changed over the comb clearance.
  • One advantage of the inventive arrangement of an actuating gear unit on the output shaft of the breakaway cylinder gear is its retrofit capability, since the connection between the output shaft and the breakaway cylinders can be easily removed, and the actuating gear unit according to the invention can be connected to the output shaft, ultimately arranging the breakaway cylinders at the gear output of the actuating gear unit.
  • the control motor can be designed as a structural unit with the actuating gear unit, and the control motor can be used to introduce a defined rotary motion into the actuating gear unit, similar to the defined oscillating motion introduced into the breakaway cylinder gear by the tongs shaft via the coupling rocker.
  • the actuating gear unit is designed as a planetary gear located in the drive train between the breakaway cylinder gear and the breakaway cylinders.
  • the design of the planetary gear forming the actuating gear unit can be identical to the design of the breakaway cylinder gear, which can also be designed as a planetary gear.
  • two actuating gear units according to the invention can be arranged downstream of the breakaway cylinder gear, preferably in the form of a planetary gear, on the output shaft of the breakaway cylinder gear.
  • These actuating gear units are driven equally by the output shaft but have respective control motors, so that a front and a rear breakaway cylinder can be controlled separately and can have a different phase position relative to each other.
  • the adjustment can be made such that the phase position of the rear breakaway cylinder lags behind the phase position of the front breakaway cylinder, which is made possible by the two control motors on the respective actuating gear units.
  • the output shaft can be operatively connected to a sun gear of the planetary gear forming the actuating gear unit.
  • the control motor can be operatively connected to a planetary carrier of the planetary gear forming the actuating gear unit.
  • the coupling rocker is rotatably mounted on an eccentric bushing through which the main drive shaft extends and is connected to a circular pinion shaft for driving a circular pinion roller.
  • the actuating gear unit according to the invention has a shaft set whose shafts extend parallel to the main drive shaft and/or parallel to the circular pinion shaft. This allows the gear unit to be designed with a particularly compact construction.
  • the breakaway cylinder gear can be coupled to the main drive shaft by means of a gear stage and further coupled to the coupling rocker by means of a sliding rod unit.
  • the basic structure of the gear unit can be implemented in a conventional design, and the actuating gear unit according to the invention, together with the control motor, can be easily retrofitted.
  • a control unit can be set up with which the control motor can be controlled to carry out a continuous or discontinuous, a periodic and/or repetitive rotary movement.
  • the control unit can be formed by an operating unit already present on the combing machine, or the control unit can be an integral part of the existing operating unit.
  • the control unit which is particularly designed as an interactive interface, can, for example, be used to control the control motor in order to adjust the phase position of the piling motion of the detaching cylinders relative to the piling motion of the output shaft of the detaching cylinder gear.
  • the invention further relates to a combing machine for spinning preparation with a gear unit as described above.
  • the combing machine can have multiple combing units with respective gear units, wherein the control unit can be arranged centrally and can be designed to control all control motors of each gear unit.
  • the multiple gear units can be adjusted equally, in particular with regard to the phase position of the detachment rollers, by means of the identical control of the control motors in each of the combing heads, in particular via uniform operation of a control unit common to all combing heads.
  • Figure 1 which shows a gear unit 1 of a combing machine for spinning preparation, wherein the described features are identified by the corresponding reference numerals in Figure 2 must also be taken into account, and in connection with Figure 2 not be written again.
  • FIGS. 1 and 2 each show a gear unit 1, wherein the gear unit 1 according to Figure 1 reflects the state of the art, whereas in Figure 2 the features of the invention are described separately.
  • the transmission unit 1 has a main drive shaft 10, which is driven via a main drive gear 11 by means of a drive motor 27.
  • the drive motor 27 initially drives a secondary shaft 30, which is part of a secondary transmission 31, wherein the secondary transmission 31 drives, for example, table calender rolls 32 and, for example, delivery rolls 33.
  • a gear 34 is mounted on the auxiliary shaft 30, which meshes with the main drive gear 11, and the main drive gear 11 has a rigid connection to the main drive shaft 10, which is consequently also continuously driven in rotation by the drive motor 27.
  • the main drive shaft 10 interacts via an intermediate gear 35 with a circular comb shaft 21, via which a circular comb roller 22 is driven. Furthermore, a gear stage 25 is connected to the main drive shaft 10, via which the tear-off cylinder gear 16 is continuously driven to drive the tear-off cylinders 17 and 18.
  • the tear-off cylinder gear 16 is designed as a planetary gear and drives the tear-off cylinders 17 and 18 directly with the vocational step movement.
  • a crank arm 13 is arranged at an off-center point on the main drive wheel 11, via which an oscillating movement is introduced into the tong shaft 12.
  • the oscillating movement is transferred from the tong shaft 12 to a tong apparatus (not shown in detail) in order to oscillate at least one upper tong of the tong apparatus relative to a lower tong in order to release the fiber strand between the upper tong and lower tong and to hold it again.
  • the tongs shaft 12 is further connected to the coupling rocker 14 via a coupling arm 36, and the oscillating movement of the tongs shaft 12 is transmitted to the coupling rocker 14 via the coupling arm 36, which is rigidly attached to the tongs shaft 12.
  • the coupling rocker 14 can execute the torsional oscillating movement on an eccentric bushing 15, which is rotatably mounted on the main drive shaft 10 itself.
  • the coupling rocker 14 On an opposite side of the connection of the coupling arm 36, the coupling rocker 14 is connected to the breakaway cylinder gear 16 by means of a sliding joint rod unit 26, so that the oscillating movement of the coupling rocker 14 introduces a discontinuous, yet periodic oscillating movement into the breakaway cylinder gear 16, which is superimposed on the continuous rotary movement from the main drive shaft 10 and the gear stage 25.
  • the breakaway cylinders 17 and 18 can be driven with the required vocational step movement.
  • a brush motor 37 for driving a cleaning brush 38, and a motor 39 is provided which serves to drive at least two winding rollers 40 on which the fiber winding is placed.
  • a coupling rod 28 is provided as a connection between the main drive gear 11 and the eccentric bushing 15. A rotational movement is introduced into the eccentric bushing 15 via the coupling rod 28, which creates a forced rotation of the eccentric bushing 15 depending on the rotation of the main drive gear 11.
  • Figure 2 shows in comparison to Figure 1 a gear unit 1 expanded according to the invention, which has an adjusting gear unit 20.
  • the adjusting gear unit 20 is connected to the output shaft 19 of the breakaway cylinder gear 16, so that a mit step movement is already initiated into the adjusting gear unit 20 via the output shaft 19.
  • the output shaft 19 is connected to a sun gear 29, which is part of the breakaway cylinder gear 16 designed as a planetary gear.
  • control motor 23 If the control motor 23 is activated, it rotates a planet carrier 41 of the actuating gear unit 20, which is designed as a planetary gear, via a control shaft 42, so that the breakaway cylinders 17 and 18 finally lead or lag behind the phase position P1 of the vocational step movement of the output shaft 19, depending on the setting.
  • the phase position P2 can be generated when the servo motor is activated, which deviates from the phase position P1, in particular between the reversal points U1 and U2, as in Figure 3 shown.
  • breakaway cylinders 17, 18 - in contrast to this invention - are each driven and controlled by a servo motor, so that the angular velocity and angular acceleration of the phase curve of each breakaway cylinder 17, 18 can be controlled separately, this has the disadvantage of high investment costs. Furthermore, energy consumption increases because the simulation of the vocational's step movement by the servo motors at speeds above 500 rpm consumes a lot of energy and heats up considerably due to the constant acceleration and deceleration. The invention is therefore based on the finding that only a small phase deviation by an intermediate actuating gear unit 20 with a control motor 23 is sufficient to achieve a phase deviation of up to +/- 10% from the nominal speed of the breakaway cylinders 17, 18.
  • the invention is not limited in its implementation to the preferred embodiment given above.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (8)

  1. Unité de transmission (1) d'une peigneuse pour la préparation de filature, comprenant :
    - un arbre d'entraînement principal (10) qui peut être actionné par le biais d'une roue motrice principale (11) au moyen d'un moteur d'entraînement (27),
    - un arbre à pinces (12) qui peut être mis en mouvement de rotation alternatif oscillant grâce à un mécanisme à manivelle et bielle oscillante (13) relié à la roue motrice principale (11),
    - une bielle d'accouplement (14) reliée à l'arbre à pinces (12) de telle sorte que la bielle d'accouplement (14) peut être déplacée en rotation oscillante par l'arbre à pinces (12),
    - une transmission du rouleau arracheur (16) aménagée pour l'entraînement d'au moins un rouleau arracheur (17, 18), et dans laquelle
    - la transmission du rouleau arracheur (16) peut être menée en continu par le biais de l'arbre d'entraînement principal (10) et dans laquelle
    - le mouvement oscillant peut être introduit dans la transmission du rouleau arracheur (16) au moyen de la bielle d'accouplement (14), mouvement qui peut être superposé à l'entraînement continu au moyen de l'arbre d'entraînement principal (10) dans la transmission du rouleau arracheur (16) de manière à pouvoir exécuter un mouvement à pas de pèlerin avec un arbre de sortie (19) de la transmission du rouleau arracheur (16),
    caractérisée en ce que
    une unité de transmission de réglage (20) et un moteur de commande (23) sont prévus, dans laquelle l'arbre de sortie (19) de la transmission du rouleau arracheur (16) est relié de façon opérationnelle avec l'unité de transmission de réglage (20) et dans laquelle le moteur de commande (23) pour introduire un mouvement de rotation dans l'unité de transmission de réglage (20) est paramétré pour se superposer au mouvement de rotation de l'arbre de sortie (19) de la transmission du rouleau arracheur (16) avec l'unité de transmission de réglage (20), dans laquelle l'unité de transmission de réglage (20) est réalisée comme un engrenage planétaire disposé entre la transmission du rouleau arracheur (16) et les rouleaux arracheurs (17, 18).
  2. Unité de transmission (1) selon la revendication 1, caractérisée en ce que l'arbre de sortie (19) est relié de façon opérationnelle avec un pignon planétaire de l'engrenage planétaire formant l'unité de transmission de réglage (20).
  3. Unité de transmission (1) selon l'une des revendications précédentes, caractérisée en ce que le moteur de commande (23) est relié de façon opérationnelle avec un support planétaire (41) de l'engrenage planétaire formant l'unité de transmission de réglage (20).
  4. Unité de transmission (1) selon l'une des revendications précédentes, caractérisée en ce que la bielle d'accouplement (14) est fixée de manière à pouvoir être tournée sur une douille d'excentrique (15), à travers laquelle s'étend l'arbre d'entraînement principal (10) et en liaison avec un arbre à peigne rond (21) pour l'entraînement d'un cylindre de peigne rond (22).
  5. Unité de transmission (1) selon l'une des revendications précédentes, caractérisée en ce que la transmission du rouleau arracheur (16) est couplée à l'arbre d'entraînement principal (10) au moyen d'un étage de transmission (25) et est en outre couplée à la bielle d'accouplement (14) au moyen d'une unité de bielles articulées (26).
  6. Unité de transmission (1) selon l'une des revendications précédentes, caractérisée en ce qu'une unité de commande (24) est prévue qui permet de piloter le moteur de commande (23) pour exécuter une rotation continue ou discontinue, périodique et/ou se répétant dans son déroulement.
  7. Peigneuse pour la préparation de filature avec une unité de transmission (1) conçue selon l'une des revendications précédentes.
  8. Peigneuse selon la revendication 7, caractérisée en ce que la peigneuse présente plusieurs unités de peignage avec des unités de transmission (1) correspondantes, dans laquelle l'unité de commande (24) est prévue de manière centralisée et conçue pour piloter tous les moteurs de commande (23) de chaque unité de transmission (1).
EP21729836.3A 2020-06-30 2021-05-26 Boîte à engrenages pour une peigneuse et peigneuse comprenant une boîte à engrenages Active EP4172391B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020117233.8A DE102020117233A1 (de) 2020-06-30 2020-06-30 Getriebeeinheit für eine Kämmmaschine und Kämmmaschine mit Getriebeeinheit
PCT/EP2021/063997 WO2022002488A1 (fr) 2020-06-30 2021-05-26 Boîte à engrenages pour une peigneuse et peigneuse comprenant une boîte à engrenages

Publications (2)

Publication Number Publication Date
EP4172391A1 EP4172391A1 (fr) 2023-05-03
EP4172391B1 true EP4172391B1 (fr) 2025-04-23

Family

ID=76269717

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21729836.3A Active EP4172391B1 (fr) 2020-06-30 2021-05-26 Boîte à engrenages pour une peigneuse et peigneuse comprenant une boîte à engrenages

Country Status (4)

Country Link
EP (1) EP4172391B1 (fr)
CN (1) CN115803486B (fr)
DE (1) DE102020117233A1 (fr)
WO (1) WO2022002488A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022122036A1 (de) * 2022-08-31 2024-02-29 Trützschler Group SE Getriebeeinheit für eine Kämmmaschine und Kämmmaschine mit einer solchen Getriebeeinheit

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610314C3 (de) * 1976-03-12 1979-01-25 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Antriebsvorrichtung für die AbreiBwalzen von Kämmaschinen
DE19536009A1 (de) * 1995-09-28 1997-04-03 Spinnereimaschinenbau Leisnig Antriebsvorrichtung für eine auf dem Zangenapparat einer Wollkämmaschine angeordneten, umlaufenden Speisekammanordnung
DE19612808A1 (de) * 1996-04-02 1997-10-09 Cetex Chemnitzer Textilmaschin Antriebsvorrichtung für die Abreißwalzen einer Kämmaschine
EP0936292B1 (fr) * 1998-02-12 2004-02-25 Maschinenfabrik Rieter Ag Entrainement de peigne circulaire
CH700285A2 (de) * 2009-01-26 2010-07-30 Rieter Ag Maschf Antriebsvorrichtung für die Abreisswalzen einer Kämmmaschine.
ITBS20110124A1 (it) * 2011-09-16 2013-03-17 Marzoli Spa Pettinatrice con pettine circolare a velocità variabile
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
CN202954168U (zh) * 2012-11-27 2013-05-29 江苏凯宫机械股份有限公司 棉纺精梳机锡林变速机构
CH714584A2 (de) * 2018-01-23 2019-07-31 Rieter Ag Maschf Getriebe mit einer Einstellvorrichtung für eine Pilgerschrittbewegung für eine Kämmmaschine.
CH714582A1 (de) * 2018-01-23 2019-07-31 Rieter Ag Maschf Antriebsvorrichtung für Abreisswalzen einer Kämmmaschine.
CN217173970U (zh) * 2022-02-22 2022-08-12 江苏金恒纺织有限公司 一种振荡式开松植物染纤维的梳理机构

Also Published As

Publication number Publication date
CN115803486A (zh) 2023-03-14
CN115803486B (zh) 2025-12-19
WO2022002488A1 (fr) 2022-01-06
EP4172391A1 (fr) 2023-05-03
DE102020117233A1 (de) 2021-12-30

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