EP0754253A1 - Systeme d'entrainement synchronise de plusieurs arbres de machines de peignage - Google Patents

Systeme d'entrainement synchronise de plusieurs arbres de machines de peignage

Info

Publication number
EP0754253A1
EP0754253A1 EP95915748A EP95915748A EP0754253A1 EP 0754253 A1 EP0754253 A1 EP 0754253A1 EP 95915748 A EP95915748 A EP 95915748A EP 95915748 A EP95915748 A EP 95915748A EP 0754253 A1 EP0754253 A1 EP 0754253A1
Authority
EP
European Patent Office
Prior art keywords
drive
motor
drive motor
speed
arrangement according
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Withdrawn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
EP95915748A
Other languages
German (de)
English (en)
Inventor
Peter-Klaus Budig
Andreas Eckstein
Andreas Hermeyer
Helmut Schnabel
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.)
SPINNEREIMASCHINENBAU LEISNIG GmbH
Original Assignee
SPINNEREIMASCHINENBAU LEISNIG GmbH
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
Priority claimed from DE19509209A external-priority patent/DE19509209A1/de
Application filed by SPINNEREIMASCHINENBAU LEISNIG GmbH filed Critical SPINNEREIMASCHINENBAU LEISNIG GmbH
Publication of EP0754253A1 publication Critical patent/EP0754253A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/04—Arrangements for controlling or regulating the speed or torque of more than one motor

Definitions

  • the invention relates to an arrangement for the synchronized driving of several axes on combing machines with several electrical individual drives, which receive control information on position and speed values from an electronic control unit via converters.
  • Such drives are driven in a controlled manner with regard to their movement program and execute the specified program with high precision and feedback.
  • Such drives include through EP 0360 064 AI and EP 374 723 A2 also known on combing machines with a vibrating pliers unit.
  • the object of the invention is to propose a drive arrangement for combing machines which is suitable for coordinating a large number of individual drives on the machine in such a way that overloads caused by acceleration and incorrect coordination are largely avoided.
  • the synchronicity of all drives should be maintained to the extent necessary.
  • the effort to implement this task should be low.
  • the total energy requirement for the control and operation of the individual drives should not exceed an acceptable level.
  • this object is achieved by the arrangement defined in claim 1.
  • the total load on the network and the important units of the machine is reduced to a reasonable level by the rotational speed, which is adapted to the torque curve within each cycle of a drive characteristic of the machine and the use of its actual position values for the synchronous control of the other drives reduced.
  • the first drive motor as a motor with elastic torque characteristic according to claim 2 and its control, without internal speed control, an optimal drive behavior of all individual drives is achieved at the lowest cost.
  • the resultant inertia forces are reduced to a minimum, particularly on position-controlled servo drives.
  • load peaks of other position-controlled drives can also be used for the design of the guide speed.
  • the coupling of the round comb roller with the relatively light comb roller and its synchronous drive with discontinuous circumferential speed on the one hand ensures the saving of an individual drive and on the other hand a particularly effective drive movement of the comb roller.
  • the drive of the take-off rollers shown avoids an oscillating movement of large masses.
  • the vibratory drive for the conveyor belt via crank and position-controlled motor allows the movement form to be optimally adapted to the other moving combing elements involved.
  • Fig. 2 is a schematic representation of the path-time diagrams of the drive movements of individual units, the average torque and speed curve of the first drive motor and
  • FIG. 3 shows a schematic representation of the control system of the machine in a block diagram.
  • the combing machine has the basic structure of a wool combing machine.
  • fleece layers are fed from a fleece roll, which is supported on and driven by winding rolls, to an essentially positionally stable pliers 11.
  • These pliers 11 each provide a fiber beard in a rhythmic sequence and clamps it at its feed end.
  • This fiber beard is combed by a disc comb rotating circular comb 2. After combing, this is lifted out of the combing zone by the so-called underslider 13 (part of the pliers 11), is placed with its free end onto the returned end of the already combed fleece, and is drawn into the nip of the take-off rollers 3.
  • a vibrating driven comb 12 engages in the rear end of the fiber beard.
  • the take-off rollers 3 pull the fibers of the fiber beard through the needles of the fixed comb 12 and detach it from the supplied fleece.
  • the take-off rollers 3 are driven for this purpose with a crawl movement.
  • a brush roller 8 is assigned to the circular comb 2 and removes the combed short fibers from the clothing of the circular comb 2. This brush roller 8 is in turn cleaned by the comb roller 21, which may interact with a chipper or scraper and with a stream of suction air.
  • the soldered fleece is fed from the take-off rollers 3 to a funnel via the conveyor belt 31, which is called a manchon or trolley on these machines.
  • the conveyor belt is also driven with a mit step movement.
  • the aforementioned funnel combines the fleece in connection with a pair of delivery rollers 6 to form a sliver.
  • This fiber sliver is fed to a rotating mechanism 7 by means of guide rollers, with the aid of which the fiber sliver is deposited cycloidally or in another manner in a storage container (can).
  • motors 10, 20, 30, 40 that are controlled in a synchronized manner are provided according to the invention.
  • motors 10, 20, 30, 40 must be designed in such a way that they can control the specified laws of motion in synchronized position at comb numbers of 200 to 250 per minute.
  • the movements of the pliers 11, the oscillating movement of the lower slide 13, the oscillating movement of the feed unit 14, and the oscillating movement of the fixed comb 12 are controlled by an eccentric shaft 1 which, in a manner known per se, cam mechanisms, multi-unit coupling mechanisms and / or pinions are assigned for the named work elements.
  • This complex of working elements is driven via the eccentric shaft 1 by a first drive motor 10, which can be referred to as a master drive.
  • this first drive motor 10 is an asynchronous motor with an inclined speed-torque characteristic.
  • This first drive motor 10 is assigned actuating means for specifying a specific speed. According to a first example, these adjusting means give the motor a certain voltage at which a certain average speed is set.
  • a controller for securing the predetermined working speed is not provided.
  • the actual speed 17 (diagram n 1 - in FIG. 2) is established on the basis of the respectively acting torque 16 (diagram OMEGA 1 in FIG. 2) according to the torque-speed characteristic of the first drive motor 10.
  • the instantaneous expansion number 17 is therefore essentially directly dependent on the particular torque 16 to be applied.
  • the basic curve of the torque of this first drive motor 10 compensates - at least partially - with the acceleration and deceleration curve caused by it, the torque curve of the circular comb 2, the take-off rollers 3 and the oscillating movement of the conveyor belt 31.
  • the eccentric shaft 1 driven in this way, pulsed with red, with its actual position values removed, is predestined for the sequence of the programs for the motor 20 of the rotary chamber 2, the motor 30 for the To control the drive of the take-off rollers 3 and the motor 40 for the vibratory drive 4 of the conveyor belt 31 (carriage).
  • These motors 20, 30, 40 which are synchronously tracked to the first drive motor are preferably provided with a field-oriented controlled synchronous control which, based on the current actual position values of the first drive motor 10, modified nominal position values for each of these motors 20, 30 , 40 provides.
  • a drive concept designed in this way ensures that the individual working elements in synchronous operation reliably follow the specified movement path synchronously, even with a high number of combing cycles.
  • the circular comb 2 is directly coupled to the comb roller 21 via gear wheels or toothed belts.
  • the motor 20 is preferably arranged within the circular comb. This saves mass transfer elements.
  • the take-off rollers 3 are driven by a fixedly mounted motor 30. Its rotational movement is transmitted via the imaginary pole (four-link mechanism 41, 42, 45,) of the oscillating movement of the lower feed roller 3, which has its bearing on the coupling 45, to the take-off roller 3 via a toothed belt gear 32.
  • the conveyor belt 31 is also guided on the coupling 45. This unit is called the "wagon".
  • the rotary movement of the lower take-off roller 3 is continued with known means on the roller combinations arranged there.
  • the vibratory drive 4 for the conveyor belt 31 on the coupling 45 is preferably generated via a crank drive 43, 44, 46, 47.
  • crank drive 43, 44, 46, 47 With a simple, non-illustrated crank arm drive, the necessary rest phase can be achieved by periodically adjusting the speed of the motor 40 - similar to the drive for the circular comb 2.
  • the drives of this first group are equipped with a so-called feedback. This means that the manipulated variables executed by the motors 20, 30, 40 are detected, compared with the specified target variables and the motors are caused to make a corrective movement.
  • Each of these individual drives can be assigned a control unit 91 which has memories for movement programs which are repeated in each comb play.
  • the actual position values of the first drive motor 10 are recorded and converted by the master computer 90 or decentralized control units 91 into desired speed values for the drive units mentioned. 12
  • the motors used for the individual drives can have a very different design.
  • Field-oriented, position-controlled synchronous motors 20, 30, 40 are preferably used for the design of the position-controlled drives, which must be designed as drives that are subject to very high dynamic loads.
  • the drive motors 50, 60, 70, 80 of the third group are simpler and less expensive in their drive concept. It is important for their selection that they follow the speed of the main shaft with given gear ratio or gear ratio within acceptable tolerances.
  • the overall electrical diagram of the motor assignment is shown schematically in FIG. 3.
  • the first drive motor 10 has a falling torque-speed characteristic which almost automatically adjusts the speed to the level of the torques.
  • This form of adaptation can also be replaced by a program that may have been determined empirically.
  • a deceleration of the first drive motor 10 will automatically lead to a deceleration of the tracked drives.
  • Fig. 2 From Fig. 2 it can be seen, for example, that in the area in which the pliers 11 closes (diagram Sll left section) and applying great forces the fiber beard.
  • feed apparatus 14 and fixed comb 12 are heavily loaded. This fact leads to a delay in the rotary movement of the first drive motor 10. This delay is also followed by the motor 20 of the circular comb 2.
  • the motor 20 also follows this deceleration.
  • the extreme deceleration which the circular comb 2 must carry out from a technological point of view at this point is significantly reduced in its absolute value.
  • the combing process can be optimized in a fraction of a second, if necessary by pressing a button or by using sensors that are used in a targeted manner Adjust conditions.
  • a very decisive advantage of this drive arrangement is that the noise pollution caused by the large number of mechanical gears can be restricted in an extremely extreme way.
  • This new drive arrangement also has advantages in terms of maximum working speed on the basis of the reduced masses to be moved, which adhere to the mechanical gears.

Landscapes

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

Abstract

L'invention concerne un système d'entraînement synchronisé de plusieurs arbres de machines de peignage, pourvues d'entraînements individuels électriques qui reçoivent, par l'intermédiaire de convertisseurs, des informations de réglage sous forme de valeurs de position et de vitesse de rotation, qui proviennent d'une unité de commande électronique. L'invention vise à prévoir plusieurs entraînements individuels soumis à de fortes charges dynamiques, où les forces d'accélération sont coordonnées. A cet effet, le système d'entraînement se présente de manière à ce qu'il y ait un premier moteur d'entraînement (10) pourvu d'un capteur de position réelle, pour un organe (1) fortement sollicité, dont l'entraînement requiert une dynamique élevée et dont la courbe de transmission de couple est caractéristique de la machine. Il est également prévu qu'un moteur d'entraînement (20, 30, 40) soit associé à chacun des organes (2, 3, 4) d'un autre groupe d'organes (2, 3, 4) de la machine de peignage, chaque moteur étant équipé d'une commande à régulation orientée zone, qui indique au moteur d'entraînement (2,3,4), sur la base des valeurs de position réelle présentes du premier entraînement (10), des valeurs de réglage, sous forme de valeurs de position théorique. La vitesse de rotation du premier moteur d'entraînement (10) peut être modulée en fonction des valeurs de couple obtenues.
EP95915748A 1994-04-07 1995-04-03 Systeme d'entrainement synchronise de plusieurs arbres de machines de peignage Withdrawn EP0754253A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4412022 1994-04-07
DE4412022 1994-04-07
DE19509209 1995-03-17
DE19509209A DE19509209A1 (de) 1994-04-07 1995-03-17 Anordnung zum synchronisierten Antreiben mehrerer Achsen an Kämmaschinen
PCT/DE1995/000463 WO1995027817A1 (fr) 1994-04-07 1995-04-03 Systeme d'entrainement synchronise de plusieurs arbres de machines de peignage

Publications (1)

Publication Number Publication Date
EP0754253A1 true EP0754253A1 (fr) 1997-01-22

Family

ID=25935440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95915748A Withdrawn EP0754253A1 (fr) 1994-04-07 1995-04-03 Systeme d'entrainement synchronise de plusieurs arbres de machines de peignage

Country Status (2)

Country Link
EP (1) EP0754253A1 (fr)
WO (1) WO1995027817A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011073942A1 (fr) 2009-12-18 2011-06-23 Marzoli Combing & Flyer S.P.A. Peigneuse à peigne circulaire à vitesse variable

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1280137B1 (it) * 1995-02-28 1998-01-05 Vouk Macchine Tessili Spa Macchina pettinatrice a gestione elettronica con sistema perfezionato nel rilevamento degli impulsi dagli encoders
IT1280136B1 (it) * 1995-02-28 1998-01-05 Vouk Macchine Tessili Spa Macchina pettinatrice a gestione elettronica con sistema perfezionato nella disposizione degli encoders
CN1090255C (zh) * 1996-03-29 2002-09-04 里特机械公司 精梳机的分离－和接合装置
DE19641979B4 (de) * 1996-10-11 2007-01-04 Maschinenfabrik Rieter Ag Verfahren und Vorrichtung zum Steuern der Antriebsbewegungen einer Kämmaschine, insbesondere einer Baumwollkämmaschine
FR2781507B1 (fr) 1998-07-24 2000-09-15 Schlumberger Cie N Dispositif de guidage du manchon d'arrachage d'une peigneuse rectiligne
EP2108720B1 (fr) * 2008-04-11 2011-06-15 Maschinenfabrik Rieter Ag Dispositif de formation d'une nappe de fibres peignées
IT201900011706A1 (it) * 2019-07-15 2021-01-15 Officine Gaudino S P A Macchina pettinatrice rettilinea munita di gruppo di alimentazione perfezionato

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2144422C2 (de) * 1971-09-04 1973-09-20 Siemens Ag Einrichtung zum Steuern oder Regeln einer Asynchronmaschine
IL90789A0 (en) * 1988-08-05 1990-01-18 Rieter Ag Maschf Textile machine with drawframes
DD275271A1 (de) * 1988-09-01 1990-01-17 Textima Veb K Speisewalzenantrieb fuer kaemmaschinen
DE4312041A1 (de) * 1993-04-13 1994-10-20 Elektrische Automatisierungs U Elektrischer Antrieb für Kämmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9527817A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011073942A1 (fr) 2009-12-18 2011-06-23 Marzoli Combing & Flyer S.P.A. Peigneuse à peigne circulaire à vitesse variable

Also Published As

Publication number Publication date
WO1995027817A1 (fr) 1995-10-19

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