EP0730052A1 - Arrangement de codeurs dans une machine de peignage commandée électroniquement - Google Patents

Arrangement de codeurs dans une machine de peignage commandée électroniquement Download PDF

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Publication number
EP0730052A1
EP0730052A1 EP96102844A EP96102844A EP0730052A1 EP 0730052 A1 EP0730052 A1 EP 0730052A1 EP 96102844 A EP96102844 A EP 96102844A EP 96102844 A EP96102844 A EP 96102844A EP 0730052 A1 EP0730052 A1 EP 0730052A1
Authority
EP
European Patent Office
Prior art keywords
combing
rollers
motor
tearing
tearing rollers
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.)
Withdrawn
Application number
EP96102844A
Other languages
German (de)
English (en)
Inventor
Fabio Volk
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.)
VOUK MACCHINE TESSILI SpA
Original Assignee
VOUK MACCHINE TESSILI SpA
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 VOUK MACCHINE TESSILI SpA filed Critical VOUK MACCHINE TESSILI SpA
Publication of EP0730052A1 publication Critical patent/EP0730052A1/fr
Withdrawn legal-status Critical Current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

Definitions

  • This object of this invention is an electronically managed combing machine comprising a plurality of combing groups enclosing a combing sector roll (comb cylinder) and at least a couple of tearing rolls that can move in a clockwise and/or anti-clockwise rotation to accompany advancing slivers to be combed and torn, in counter-rotation, associated to alternative movement linear comb and to nippers reapproaching the tufts torn of said slivers on said tearing rolls to obtain again a continuity of the sliver by reinversion of the rotation of said tearing rollers in the advancement direction to accompany the sliver thus joined and comb it while it advances.
  • comb cylinder combing sector roll
  • tearing rollers are generally in couples and move substantially with a movement that is defined as "pilgrim pitch", that is forwards and backwards.
  • This forward and backward movement of said tearing rollers associates more particularly to a combing roll also known as comb cylinder, that rotates continuously towards the advancing sliver and comprises a circular sector comb that for a certain rotation angle, combs in a downwards direction the tuft of the sliver end left torn at the top.
  • a combing roll also known as comb cylinder
  • comb cylinder that rotates continuously towards the advancing sliver and comprises a circular sector comb that for a certain rotation angle, combs in a downwards direction the tuft of the sliver end left torn at the top.
  • the nippers open and move by sliding the combed tuft towards the mouth of the tearing rolls.
  • the system with more electric motors therefore works substantially as the drive gears system, replacing them, but with no possibility of modifying their parameters, all being managed and determined by said encoders and rigid processing means of the data supplied by these encoders.
  • the first motor that is the one operating the combing roll, also operates the drawing system of all the rollers and the movement of the combs (linear and circular) and of said nippers, by means of complex oil bath mechanical drives.
  • the first motor that is the one operating the combing roll, also operates the drawing system of all the rollers and the movement of the combs (linear and circular) and of said nippers, by means of complex oil bath mechanical drives.
  • VOUK IT-83324A/90 and WO-91/11548 solutions in respect to EP-A-0374723 regards the fact that the electric motors by VOUK have an interdependent movement programmable and modifiable by means of computerised hardware system that, by software, determines on the basis of the angular rotation impulses supplied by the encoders of the drive system of the combing roll and by the drive system of the tearing rollers, the movement of the tearing rollers motor in respect to the first one.
  • the tearing rollers are operated directly by only one intermediate motor pinion (isosceles triangle drive) keyed and coaxial with the axis of the respective motor, to vary the rotation of the tearing rollers as desired with a minimum of errors.
  • This system makes it possible to make the machine work as desired and according to the type of sliver and fiber treated, by adjusting and operating both on the difference of acceleration and/or speed of the tearing rollers that at the moment of gear inversion and/or at their moment of gear re-inversion to come into unison with the advancement of the sliver for its advancement re-starting, this, therefore, occurring substantially with a step-by-step advancement - stop - advancement .... movement.
  • the encoders need to be placed on the axes of the rollers or rolls, for a correct functioning, wherefore the solving of the problem from a planning point of view is difficult and out of the reach of the common designer .
  • a combing machine comprising a plurality of combing groups including a combing roll and at least a couple of tearing rollers that can move in a clockwise and anti-clockwise rotation to accompany the advancing slivers to be combed and/or torn in one direction and bringing back of the torn tuft for an adequate portion, clamped between them, associated to linear comb and nippers that move for clamping the tuft of the end of the sliver left at the top and bringing it forwards overlapping the tuft at the bottom for rejoining the sliver and making it advance, combing it by reinversion of the rotation of the tearing rolls, and by using:
  • the encoders are placed only on the axes of the combing roll and tearing roll devices, wherefore it is not possible to know the exact position of the motor because of the transmission clearance and the consequent inversion of the rotation causes the feared phase displacements.
  • the sliver at the top advances at a step-by-step movement, that is forwards, stop, forwards, ..., while the sliver at the bottom advances at vocational pitch, that is forwards, backwards, forwards, ..., coinciding substantially between the two, only one portion of the forward movement, that is only the one in which the two sliver tufts have been overlapped and therefore rejoined for advancing the assembly, therefore the solution of putting one encoder on the drive and one on the motor of the tearing rollers is really the safest and most reliable if compared to other solutions.
  • a further problem in the combing machines consists in the -fact that when there is a lack of current, there is the great need of restarting the work in a correct way, and with the cycle perfectly synchronized, otherwise there would be a continuous breaking of slivers or joints without adequate section for the overlapping of the tufts.
  • This problem is solved as claimed by using a storage system which maintains the current tension, preferably with battery, that stores in any way the angular rotation position of said encoders, to determine with this a correct restart of the cycle.
  • the electric motor that operates the tearing rollers will not move at a pilgrim's pitch, as the previous ones, but will possibly be a simpler and less powerful electric motor, and therefore less expensive, having to perform only rotation and stopping movements in one direction and not in inversion of the rotation as the previous ones.
  • the present techniques substantially provides the use of only one electric motor for the whole drive system of the sliver and therefore this moves not only said combing roll, but all the other members in complex mechanical drive, therefore even said comb, said nippers, and of the other deflecting rollers, drive ones etc.
  • said system with linear comb and nippers is driven by a separate electric motor.
  • the system with nippers is operated by a separate motor that, together with an encoder, rotates in both directions.
  • all said five electric motors function by rotating unidirectionally, only one of them rotates in direction opposite to the advancement rotation direction and is keyed to said detaching rollers.
  • the work-stations comprise towards the top, a couple of leading rollers 2, a group 3 with couple of leading rollers 31,32, a tearing group 4 that comprises the couple of tearing rollers 411,412, associated to idle counter-rolls 411',412', the first being operated by the gear box 41 with motor axis pinion (420) in direct mesh with 1 to 1 ratio, directly from the axis of the electric motor 42 that comprises in axis even the encoder 420.
  • the nipper group 51,54 moves by coming and going:
  • sliver unwinding rollers that is support and rotation rollers of the sliver bobbin to be combed 8 in step-by-step unwinding.
  • said motor can rotate only in the opposite direction by clutch disengagement and/or freewheel (F), while the rotation in advancement direction is obtained by the main drive 6,6' (see Fig. 1A and 1B).
  • the motor for nipper moving and linear comb 80 that rotates in both directions, with respective encoder 800, by means of the axis 8 that operates the mechanical drive (not shown) of the nipper system 51-53 and linear comb 52 of the nipper group 5.
  • the bobbin for unwinding the sliver is mounted on support rollers 81,82 for unwinding the sliver by means of motor-gear system 830-83-84 where the operating electric motor 83 involves a respective control encoder 830.
  • the different motors are operated by the hardware system as indicated in Figure 10, where, for the sake of simplicity, only the motor group of the tearing rollers system 42 are indicated with respective encoder 420, and the encoder of the combing roll 690, while "D" indicates the hardware card of power control to operate one of the feeding motors.
  • All other feeding motors will have analogous connections and in particular even motor 42 besides motor 67 that operates the combing roll.
  • Multipliers 931 and 932 multiply the impulses received from the encoders for a value not lower than 4, and send the received data to the CPU (93) for respective calculation and management by means of management software.
  • This multiplication system is very important because it reduces the errors due to a count done on encoder impulse values too wide because of a mechanical derivation, thus substantially improving the setting up system in perfect synchrony the system for restarting the cycle.
  • a free wheel RL is provided to satisfy the necessity to continue the rotation in advancement direction of the respective parts in direct mesh (brush or combing roll), eventually with flywheel.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP96102844A 1995-02-28 1996-02-26 Arrangement de codeurs dans une machine de peignage commandée électroniquement Withdrawn EP0730052A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT95UD000030A IT1280136B1 (it) 1995-02-28 1995-02-28 Macchina pettinatrice a gestione elettronica con sistema perfezionato nella disposizione degli encoders
ITUD950030 1995-02-28

Publications (1)

Publication Number Publication Date
EP0730052A1 true EP0730052A1 (fr) 1996-09-04

Family

ID=11421749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102844A Withdrawn EP0730052A1 (fr) 1995-02-28 1996-02-26 Arrangement de codeurs dans une machine de peignage commandée électroniquement

Country Status (2)

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EP (1) EP0730052A1 (fr)
IT (1) IT1280136B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641979A1 (de) * 1996-10-11 1998-04-16 Chemnitzer Spinnereimaschinen Verfahren zum Steuern der Antriebsbewegungen einer Kämmaschine insbesondere Baumwollkämmaschine
EP1384799A1 (fr) * 2002-07-26 2004-01-28 N. Schlumberger S.A. Dispositif et procédé de pilotage et de consultation des paramètres de marche de machines textiles
EP1496143A3 (fr) * 2003-07-08 2005-12-21 Rieter Ingolstadt Spinnereimaschinenbau AG Machine textile, particulièrement une machine préparatoire pour la filature, comprenant un banc d'étirage
CN102704053A (zh) * 2012-06-11 2012-10-03 经纬纺织机械股份有限公司 精梳机车尾单独试车传动机构
IT201900008709A1 (it) * 2019-06-12 2020-12-12 Officine Gaudino S P A Macchina pettinatrice rettilinea munita di manicotto strappatore perfezionato

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360064A1 (fr) * 1988-09-21 1990-03-28 Maschinenfabrik Rieter Ag Entraînement à moteur d'un cylindre d'alimentation, machine de peignage
JPH02175925A (ja) * 1988-12-28 1990-07-09 Osaka Kiko Co Ltd コーマ
EP0573121A1 (fr) * 1992-06-03 1993-12-08 FRATELLI MARZOLI & C. S.p.A. Procédé et appareil pour commander une machine de peignage
WO1995027817A1 (fr) * 1994-04-07 1995-10-19 Spinnereimaschinenbau Leisnig Gmbh Systeme d'entrainement synchronise de plusieurs arbres de machines de peignage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360064A1 (fr) * 1988-09-21 1990-03-28 Maschinenfabrik Rieter Ag Entraînement à moteur d'un cylindre d'alimentation, machine de peignage
JPH02175925A (ja) * 1988-12-28 1990-07-09 Osaka Kiko Co Ltd コーマ
EP0573121A1 (fr) * 1992-06-03 1993-12-08 FRATELLI MARZOLI & C. S.p.A. Procédé et appareil pour commander une machine de peignage
WO1995027817A1 (fr) * 1994-04-07 1995-10-19 Spinnereimaschinenbau Leisnig Gmbh Systeme d'entrainement synchronise de plusieurs arbres de machines de peignage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 446 (C - 0763) 25 September 1990 (1990-09-25) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641979A1 (de) * 1996-10-11 1998-04-16 Chemnitzer Spinnereimaschinen Verfahren zum Steuern der Antriebsbewegungen einer Kämmaschine insbesondere Baumwollkämmaschine
DE19641979B4 (de) * 1996-10-11 2007-01-04 Maschinenfabrik Rieter Ag Verfahren und Vorrichtung zum Steuern der Antriebsbewegungen einer Kämmaschine, insbesondere einer Baumwollkämmaschine
EP1384799A1 (fr) * 2002-07-26 2004-01-28 N. Schlumberger S.A. Dispositif et procédé de pilotage et de consultation des paramètres de marche de machines textiles
FR2842833A1 (fr) * 2002-07-26 2004-01-30 Schlumberger Cie N Dispositif et procede de pilotage et de consultation des parametres de marche des machines textiles
EP1496143A3 (fr) * 2003-07-08 2005-12-21 Rieter Ingolstadt Spinnereimaschinenbau AG Machine textile, particulièrement une machine préparatoire pour la filature, comprenant un banc d'étirage
CN100503915C (zh) * 2003-07-08 2009-06-24 利特;英格纺织机械制造股份公司 纺织机械，尤其是带有牵伸装置的纺织预备机械
CN102704053A (zh) * 2012-06-11 2012-10-03 经纬纺织机械股份有限公司 精梳机车尾单独试车传动机构
IT201900008709A1 (it) * 2019-06-12 2020-12-12 Officine Gaudino S P A Macchina pettinatrice rettilinea munita di manicotto strappatore perfezionato

Also Published As

Publication number Publication date
ITUD950030A0 (it) 1995-02-28
IT1280136B1 (it) 1998-01-05
ITUD950030A1 (it) 1996-08-28

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