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EP2397584B1 - Kämmmaschine - Google Patents

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Publication number
EP2397584B1
EP2397584B1 EP11169410.5A EP11169410A EP2397584B1 EP 2397584 B1 EP2397584 B1 EP 2397584B1 EP 11169410 A EP11169410 A EP 11169410A EP 2397584 B1 EP2397584 B1 EP 2397584B1
Authority
EP
European Patent Office
Prior art keywords
shafts
motor
driven
gears
roller
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
EP11169410.5A
Other languages
English (en)
French (fr)
Other versions
EP2397584A3 (de
EP2397584A2 (de
Inventor
Masami Shinbara
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.)
Toyota Industries Corp
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Toyota Industries Corp
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Filing date
Publication date
Application filed by Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP2397584A2 publication Critical patent/EP2397584A2/de
Publication of EP2397584A3 publication Critical patent/EP2397584A3/de
Application granted granted Critical
Publication of EP2397584B1 publication Critical patent/EP2397584B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/26—Driving arrangements

Definitions

  • the present invention relates to a comber, and more specifically, to a comber characterized in the structure of detaching rollers.
  • a comber includes a nipper device and a combing cylinder. Supplied lap is held by the nipper device at a retreat position of the nipper device. The distal end of the combed lap is combed with the combing cylinder. This removes short fibers from the lap, turning the lap into fleece.
  • the fleece is moved toward detaching rollers.
  • the detaching rollers are rotated in a reverse direction in response to the advance of the fleece, and fleece that has been taken before (preceding fleece) is retreated. Then, the trailing end of the preceding fleece and the advancing end of the newly combed fleece (succeeding fleece) are overlapped. Thereafter, the detaching rollers are rotated in a forward direction, so as to take the fleece from the nipper device for joining the succeeding fleece to the preceding fleece. The trailing end of the succeeding fleece is combed with a top comb.
  • Detaching rollers are typically driven by rotation of the drive shaft of a combing cylinder driven by a main motor, which rotation is transmitted via a gear device.
  • the gear device has a very complicated structure, and an object having a relatively great mass needs to be pivoted back and forth by the detaching rollers. Accordingly, a comber has been proposed in which detaching rollers are driven by a dedicated motor (see Japanese Laid-Open Patent Publication No. 2-216225 ).
  • gears 53a, 54a are fixed to first ends of shafts 53, 54 of detaching rollers 51, 52 as shown in Fig. 4 .
  • the gears 53a, 54a are integrally rotatable with the shafts 53, 54.
  • the gears 53a, 54a are meshed with a gear 57, which is driven by an electric motor 55 via a belt transmission device 56.
  • the electric motor 55 can be rotated in a forward direction and in a reverse direction.
  • the detaching rollers 51, 52 are rotated in a forward direction or in a reverse direction in accordance with the rotation direction of the electric motor 55.
  • Japanese Laid-Open Patent Publication No. 2-216225 also discloses a structure in which the shafts 53, 54 are driven by different electric motors 55. Specifically, the structure shown in Fig. 4 is modified by removing the gear 54a of the shaft 54, such that the motor 55 drives only the shaft 53 via the belt transmission device 56 and the gears 57, 53a. On the other hand, a second electric motor, which rotates in forward and reverse directions, is provided at a second end of the shaft 54. The shaft 54 is driven by the second electric motor via a belt transmission device and a gear that are similar to the ones provided at the first end.
  • Chinese Patent Publication No. CN100999837A proposes a configuration in which a single detaching roller is driven by motors each provided at one of the ends.
  • a first detaching roller 61 is driven by servomotors 62, 63 at both ends as shown in Fig. 5 , and a second detaching roller 64 is driven via timing belts 65.
  • Atypical comber has an operational portion in which eight combing heads are arranged, and the shafts of detaching rollers have a length extending over the entire length of the operational portion.
  • one end of the shaft of each detaching roller is driven. This configuration is likely to generate torsion in the shaft.
  • the speed of combers has been desired to be increased to raise the productivity.
  • increased speed of a comber creates greater torsion.
  • DE 195 09 209 A1 discloses a device for providing a synchronized drive to several spindles in a combing machine with several individual electric drives whose position and rotational-speed control signals are supplied by an electronic control unit through power converters.
  • the drive device comprises a first drive motor having an actual-position sensor for the driven assembly which is intended for operation under high dynamic loads and has a torque curve characteristic of the machine.
  • a drive motor is associated with each of a first group of additional driven assemblies of the combing machine, the motors being fitted with field-oriented control which assigns target position-control values, derived from the actual-position signals from the first drive motor, to each drive motor, the rotational speed of the first drive motor being adjustable as a function of position-dependent torque values.
  • DE 43 12 041 A1 also discloses a combing device quite similar to that of DE 195 09 209 A1 .
  • a comber that includes first and second detaching rollers arranged forward of and rearward of each other.
  • the first and second detaching rollers are rotated in a forward direction and a reverse direction in synchronization with swinging motion of a nipper frame.
  • a first roller shaft of the first detaching roller is driven at both axial ends by two first motors, which can rotate in a forward direction and a reverse direction.
  • a second roller shaft of the second detaching roller is driven at both axial ends by two second motors, which can rotate in a forward direction and a reverse direction.
  • the first motors and the second motors are driven in synchronization with each other.
  • a typical comber has an operational portion, in which eight combing heads are arranged.
  • a combing head 11 includes a nipper device 14 having a pair of lap rollers 12 and a feed roller 13, a combing cylinder 15, and two pairs of detaching rollers 16, 17, each pair of which are arranged along the front-back direction.
  • the nipper device 14 has a nipper frame 18, which is located above the combing cylinder 15 to be swingable along the advancing and retreating directions.
  • a bottom nipper 19 is provided at the bottom of the nipper frame 18.
  • a nipper arm 20 is pivotably connected to the nipper frame 18 with a support shaft 18a, and a top nipper 20a is fixed to the distal end of the nipper arm 20.
  • the top nipper 20a opens and closes at predetermined timing to pinch lap L in cooperation with the bottom nipper 19.
  • Atop comb 21 is attached to the nipper frame 18. The top comb 21 is located forward of the bottom nipper 19 and performs a predetermined action in synchronization with the nipper frame 18.
  • a nipper shaft 22 that is pivoted back and forth is located rearward of the combing cylinder 15 and below the nipper frame 18.
  • a first end of a nipper frame driving arm 23 is fixed to the nipper shaft 22 to pivot integrally with the nipper shaft 22.
  • the rear end of the nipper frame 18 is pivotally supported by a second end of the nipper frame driving arm 23 with a support shaft 23a.
  • the nipper frame 18 is configured to be swung back and forth such that the distal end of the bottom nipper 19 approaches and separates from the detaching rollers 16, 17 by back-and-forth pivoting (swinging motion) of the nipper shaft 22.
  • a gear box 24 is provided at each end of the comber along the longitudinal direction (left-right direction as viewed in Fig. 2A ).
  • Shafts 25, 26 of the detaching rollers 16, 17 are arranged to be parallel to each other between the gear boxes 24.
  • the ends of the shafts 25, 26 protrude into the gear boxes 24 and rotatably supported by the gear boxes 24 via bearings (not shown).
  • Gears 27, 28 are fixed to the ends of the shafts 25, 26, respectively, to rotate integrally with the shafts 25, 26.
  • the gears 27, 28 are formed to have the same number of teeth and the same diameter.
  • Two servomotors 29, 30 are attached to each gear box 24 to correspond to the shafts 25, 26, respectively.
  • the servomotors 29, 30 have motor shafts 29a, 30a projecting into the gear boxes 24, respectively.
  • Drive gears 31, 32 are fixed to the motor shafts 29a, 30a to rotate integrally, respectively.
  • the drive gears 31, 32 are formed to have the same number of teeth and the same diameter with the gears 27, 28.
  • Each gear box 24 has in it an idle gear 33, which is meshed with the gear 27 and the drive gear 31, and an idle gear 34, which is meshed with the gear 28 and the drive gear 32.
  • the idle gears 33, 34 are formed to have the same number of teeth and the same diameter.
  • the shafts 25, 26 are driven via gear trains between the motor shafts 29a, 30a and the shafts 25, 26, and the gear trains include the idle gears 33, 34.
  • the shafts 25, 26 are rotated at the same rotational speed as the motor shaft 29a, 30a, respectively (a ratio of rotational speed of 1:1).
  • the servomotors 29, 30 are driven in synchronization by a controller (not shown) to rotate in a forward direction or a reverse direction.
  • the nipper shaft 22 is swung (pivoted back and forth) by a main motor (not shown).
  • the bottom nipper 19 is swung back and forth, and the top nipper 20a is swung up and down. Accordingly, the lap L is held and released between the top nipper 20a and the distal end of the bottom nipper 19.
  • the servomotors 29, 30 provide drive force, the detaching rollers 16, 17 are swung integrally with the shafts 25, 26 via the gear trains.
  • the swinging motion of the detaching rollers 16, 17 is synchronized with advance and retreat of the bottom nipper 19.
  • the detaching rollers 16, 17 are rotated in the reverse direction when the bottom nipper 19 advances, and are rotated in the forward direction when the bottom nipper 19 retreats.
  • the shaft 25 is driven at both axial ends by two servomotors 29.
  • the shaft 26 is driven at both axial ends by two servomotors 30.
  • the servomotors 29 and the servomotors 30 are driven in synchronization with each other so that the shafts 25, 26 are driven to be synchronized with each other.
  • the two shafts 25, 26 are driven by four motors.
  • the shafts 25, 26 Since the shafts 25, 26 are swung (pivoted back and forth) at a high speed (for example, 300 rpm), the shafts 25, 26 have greater torsion than a case in which the shafts 25, 26 are rotated in one direction at a constant speed. However, since both ends of the shafts 25, 26 are driven by the servomotors 29 and the servomotors 30, respectively, the amount of torsion is quarter the torsion generated in a structure where shafts 25, 26 are driven only at one side. If the lengths of the shafts 25, 26 are not changed, the resonance frequency of the structure in which the shafts 25, 26 are driven at both ends is higher than the resonance frequency of a structure in which shafts 25, 26 are each driven at one end. Therefore, when the speed of the comber is increased, the rotational speed of each of the shafts 25, 26 will be different from the resonance frequency.
  • the present embodiment has the following advantages.
  • the present invention is not limited to the embodiment described above, but may be embodied as follows, for example.
  • the shafts 25, 26 may be coupled to each other via gears.
  • a coupling gear 35 may be provided to mesh with the gears 27, 28.
  • the shafts 25, 26 can be rotated in synchronization since the shafts 25, 26 are coupled to each other via a gear even if the accuracy of the synchronization between the servomotors 29, 30 is relatively low.
  • the coupling gear 35 is preferably provided at both ends of the shafts 25, 26, but may be provided only at one end.
  • gears 27, 28 meshed with the drive gears 31, 32 may be omitted.
  • gears that rotate integrally with the shafts 25, 26 may be provided separately from the gears 27, 28, and a coupling gear meshed with the additional gears may be provided.
  • the use of the gears 27, 28 is easier.
  • the gear for coupling the shafts 25, 26 to each other does not provided at ends of the shafts 25, 26, but may be provided at an intermediate part of the shafts 25, 26.
  • providing the coupling gear at ends of the shafts 25, 26 makes it easier to secure the space for the coupling gear and facilitates the maintenance.
  • the rotational speed ratio of the motor shafts 29a, 30a and the shafts 25, 26 does not need to be 1:1. That is, the rotational speed the motor shafts 29a, 30a may be faster or slower than the rotational speed of the shafts 25, 26.
  • the gear trains for transmitting the rotation of the motor shafts 29a, 30a to the shafts 25, 26 do not necessarily have the idle gears 33, 34. Instead, gears fixed to the motor shafts 29a, 30a may be directly meshed with gears fixed to the shafts 25, 26.
  • a comber includes first and second detaching rollers arranged forward of and rearward of each other.
  • the first and second detaching rollers are rotated in a forward direction and a reverse direction in synchronization with swinging motion of a nipper frame.
  • a first roller shaft of the first detaching roller is driven at both axial ends by two first motors, which can rotate in a forward direction and a reverse direction.
  • a second roller shaft of the second detaching roller is driven at both axial ends by two second motors, which can rotate in a forward direction and a reverse direction.
  • the first motors and the second motors are driven in synchronization with each other.

Landscapes

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

Claims (5)

  1. Kämmmaschine mit einer ersten und einer zweiten Lösewalze (16, 17), die vor- und hintereinander angeordnet sind, wobei die erste und die zweite Lösewalze (16, 17) in einer Vorwärtsrichtung und einer Rückwärtsrichtung in Synchronität mit einer Schwingbewegung eines Zangenrahmens (18) gedreht werden,
    wobei die Kämmmaschine dadurch gekennzeichnet ist, dass eine erste Walzenwelle (25) der ersten Lösewalze (16) an beiden axialen Enden durch zwei erste Motoren (29, 29) angetrieben wird, welche sich in einer Vorwärtsrichtung und einer Rückwärtsrichtung drehen können, eine zweite Walzenwelle (26) der zweiten Lösewalze (17) an beiden axialen Enden durch zwei zweite Motoren (30, 30) angetrieben wird, welche sich in einer Vorwärtsrichtung und einer Rückwärtsrichtung drehen können, und die ersten Motoren (29, 29) und die zweiten Motoren (30, 30) in Synchronität miteinander angetrieben werden.
  2. Kämmmaschine nach Anspruch 1, dadurch gekennzeichnet, dass ein erster Getriebezug zwischen einer Motorwelle (29a) von jedem ersten Motor (29) und einer ersten Walzenwelle (25) vorgesehen ist; ein zweiter Getriebezug zwischen einer Motorwelle (30a) des zweiten Motors (30) und der zweiten Walzenwelle (26) vorgesehen ist; die erste und die zweite Walzenwelle (16, 17) jeweils durch die entsprechenden Getriebezüge angetrieben werden; und jeder von dem ersten und dem zweiten Getriebezug ein Zwischenzahnrad (33) hat.
  3. Kämmmaschine nach Anspruch 2, dadurch gekennzeichnet, dass jeder von dem ersten und dem zweiten Getriebezug eine Vielzahl von Zahnrädern (31, 32, 33, 34) aufweist, wobei die Anzahl der Zähne der Zahnräder derart eingestellt ist, dass das Drehzahlverhältnis der entsprechenden Motorwelle (29a, 30a) und der entsprechenden Walzenwelle (25, 26) 1:1 ist.
  4. Kämmmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die erste und die zweite Walzenwelle (25, 26) aneinander über Zahnräder (35) gekoppelt sind.
  5. Kämmmaschine nach Anspruch 4, dadurch gekennzeichnet, dass die Zahnräder (35), die die erste und die zweite Walzenwelle (25, 26) aneinander koppeln, vorgesehen sind, um mit den Zahnrädern (27, 28) zu kämmen, die an den Enden der ersten und der zweiten Walzenwelle (25, 26) fixiert sind.
EP11169410.5A 2010-06-16 2011-06-10 Kämmmaschine Active EP2397584B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010137221A JP5782683B2 (ja) 2010-06-16 2010-06-16 コーマ

Publications (3)

Publication Number Publication Date
EP2397584A2 EP2397584A2 (de) 2011-12-21
EP2397584A3 EP2397584A3 (de) 2015-01-14
EP2397584B1 true EP2397584B1 (de) 2016-04-20

Family

ID=44687521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11169410.5A Active EP2397584B1 (de) 2010-06-16 2011-06-10 Kämmmaschine

Country Status (3)

Country Link
EP (1) EP2397584B1 (de)
JP (1) JP5782683B2 (de)
CN (1) CN102286807B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020129406A1 (de) 2020-11-09 2022-05-12 Trützschler GmbH & Co Kommanditgesellschaft Kämmmaschine
WO2022096222A1 (de) 2020-11-09 2022-05-12 TRüTZSCHLER GMBH & CO. KG Kämmmaschine
DE102021126664A1 (de) 2021-10-14 2023-04-20 Trützschler Group SE Kämmmaschine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014034747A (ja) 2012-08-09 2014-02-24 Toyota Industries Corp コーマにおけるデタッチングローラ駆動装置
CH711289A2 (de) * 2015-07-03 2017-01-13 Rieter Ag Maschf Kämmmaschine.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2911379C3 (de) * 1979-03-23 1995-02-23 Zinser Textilmaschinen Gmbh Lange Spinnmaschine
CH676721A5 (de) * 1988-12-23 1991-02-28 Rieter Ag Maschf
DE4312041A1 (de) * 1993-04-13 1994-10-20 Elektrische Automatisierungs U Elektrischer Antrieb für Kämmaschinen
DE19509209A1 (de) * 1994-04-07 1995-10-12 Spinnereimaschinenbau Leisnig Anordnung zum synchronisierten Antreiben mehrerer Achsen an Kämmaschinen
DE10307603A1 (de) * 2003-02-22 2004-09-02 Rieter Ingolstadt Spinnereimaschinenbau Ag Textilmaschine
DE102004017025B4 (de) * 2004-04-02 2018-05-17 Maschinenfabrik Rieter Ag Spinnmaschine mit mehreren Steckwerksantrieben
DE102004062686A1 (de) * 2004-12-21 2006-07-06 Saurer Gmbh & Co. Kg Mehrköpfige Kämmmaschine
CN201006911Y (zh) * 2006-09-27 2008-01-16 苏拉有限及两合公司 用于精纺机的驱动装置
CN100557101C (zh) * 2006-11-10 2009-11-04 上海纺织机械总厂 伺服电机驱动精梳机后分离罗拉机构
JP5301500B2 (ja) * 2010-05-28 2013-09-25 アイダエンジニアリング株式会社 複数モータ駆動のサーボプレス装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020129406A1 (de) 2020-11-09 2022-05-12 Trützschler GmbH & Co Kommanditgesellschaft Kämmmaschine
WO2022096222A1 (de) 2020-11-09 2022-05-12 TRüTZSCHLER GMBH & CO. KG Kämmmaschine
WO2022096221A1 (de) 2020-11-09 2022-05-12 TRüTZSCHLER GMBH & CO. KG Kämmmaschine
DE102020129407A1 (de) 2020-11-09 2022-05-12 Trützschler GmbH & Co Kommanditgesellschaft Kämmmaschine
DE102021126664A1 (de) 2021-10-14 2023-04-20 Trützschler Group SE Kämmmaschine
WO2023061690A1 (de) 2021-10-14 2023-04-20 Trützschler Group SE Kämmmaschine

Also Published As

Publication number Publication date
JP5782683B2 (ja) 2015-09-24
JP2012001843A (ja) 2012-01-05
EP2397584A3 (de) 2015-01-14
EP2397584A2 (de) 2011-12-21
CN102286807A (zh) 2011-12-21
CN102286807B (zh) 2015-04-29

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