EP0978581B1 - Textilverarbeitende Maschine mit einer Streckwerkseinheit - Google Patents

Textilverarbeitende Maschine mit einer Streckwerkseinheit Download PDF

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Publication number
EP0978581B1
EP0978581B1 EP99810622A EP99810622A EP0978581B1 EP 0978581 B1 EP0978581 B1 EP 0978581B1 EP 99810622 A EP99810622 A EP 99810622A EP 99810622 A EP99810622 A EP 99810622A EP 0978581 B1 EP0978581 B1 EP 0978581B1
Authority
EP
European Patent Office
Prior art keywords
processing machine
drawing unit
textile material
material processing
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.)
Expired - Lifetime
Application number
EP99810622A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0978581A2 (de
EP0978581A3 (de
Inventor
Walter Slavik
Viktor Pietrini
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0978581A2 publication Critical patent/EP0978581A2/de
Publication of EP0978581A3 publication Critical patent/EP0978581A3/de
Application granted granted Critical
Publication of EP0978581B1 publication Critical patent/EP0978581B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01G19/08—Feeding apparatus
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G21/00—Combinations of machines, apparatus, or processes, e.g. for continuous processing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/06—Arrangements in which a machine or apparatus is regulated in response to changes in the volume or weight of fibres fed, e.g. piano motions

Definitions

  • the invention relates to a textile processing machine for processing Textile fibers, the amount of fibers formed after processing being passed on to a subsequent at least two-stage drafting unit to form a uniform Sliver is discharged and between the first and second drafting stage Measuring element is provided for recording that combined after the first drafting stage Fibers and that delivered by the measuring element to the control unit Measurement signal for the intervention in the drive of the second drafting unit stage Compensate for short-term fluctuations in mass in relation to specified ones Setpoints are used, the long-term detected by the measuring element Mass fluctuations in the amount of fibers in the area behind the measuring element compensated become.
  • the term "behind the measuring element" is in relation to the direction of conveyance of the fiber mix.
  • a combing machine can be found in EP-B1 376 002, the combing units a regulating drafting device is arranged downstream, in which a uniform sliver is formed from the fiber material released by the individual combing heads, which is then placed in a receptacle via a storage device becomes.
  • a measuring element is arranged in front of this regulating drafting device to record the to the subsequent drafting system. This measuring organ captured the unevenness of the supplied fiber mass and solves in connection with one Setpoint comparison a control intervention in the drive unit from with a corresponding Distortion changes to compensate for unevenness in the fiber mass.
  • the speed of the pair of output rollers of the second drafting stage must be be adjusted so that the draft ratios in the second drafting stage not be changed by it. This requires an increased control requirement in the second drafting stage, especially the short-term mass disturbances (e.g. solder joints) must be compensated.
  • the object of the invention is therefore to improve the known devices, to get a device to do with simple and inexpensive means to enable the production of a high quality and even sliver.
  • This object is achieved in that the speed of the input roller pair of second drafting stage is controlled according to the signal of the measuring element and a sliver store is provided between the drafting units.
  • the pair of output rollers is driven with an adjustable drive and the input roller pair with is coupled to the drive of the textile machine, the tensioning of the textile material kept constant between the textile machine and the drafting unit.
  • the drafting units each have a separate one Drive motor to be driven.
  • the textile processing machine is proposed as a combing machine form, the winding rollers of the combing heads with a separate drive motor be driven, the speed of which corresponds to the signal of the measuring element is regulated.
  • Such an embodiment for controlling drifting in the fiber mass has already been described in EP-PS 558 719. This allows long-term regulation done directly on the comber.
  • the memory between the two drafting units is equipped with a monitoring device with the control of the drive motor of the second drafting unit is connected.
  • the control of the drive motor of the second drafting unit, or the basic speed of the drafting unit II, by the signal of Monitoring device of the memory can be overridden.
  • the readjustment of the speed of the Drive motor step by step (e.g. in steps of 3% of the speed) until itself the loop is again within the tolerance range.
  • a timer can also be provided be that the machine switches off if the loop is longer than a predetermined one Time is outside the tolerance range.
  • the storage between the drafting units can be implemented as a sag storage be, wherein at least one scanning element is provided to the fiber ribbon slack scan.
  • a monitoring element for the sliver delivered is arranged between the tape storage and the second drafting stage.
  • This monitoring element more or less adjusts last control instrument before the sliver is placed in a subsequent jug becomes.
  • the monitoring element is with a limit range or tolerance field fitted. As soon as the delivered sliver is outside this tolerance range the entire system is switched off.
  • timers can also be used be provided, the function of the monitoring element over a certain period of time Shut down. This is particularly necessary if the textile processing Machine is started with a new batch of material and started again must become. Instead of a timer, it would of course be conceivable to start up perform this monitoring element manually.
  • the storage device have a separate electric drive motor is driven with the drive motor of the second Drafting stage is controlled by a common frequency converter.
  • Fig. 1 the longitudinal part of a combing machine 1 is shown, on which cotton roll 4th for unrolling and combing out by subsequent combing devices.
  • cotton roll 4th for unrolling and combing out by subsequent combing devices.
  • eight such coils are placed on a combing machine for unrolling.
  • the slivers formed in the individual combing heads are placed on a conveyor table FT (schematically indicated) combined on the longitudinal part 2 to form a fiber composite 8 and in the conveying direction F of a first drafting stage I of one Drafting unit 6 fed.
  • the delay in the first drafting stage 1 takes place between the pair of input rollers 10 and the pair of output rollers 11 instead.
  • the lower rollers of these roller pairs are connected to a drive. So the input roller pair 10 by one Motor M2 driven by a gear 13.
  • the motor M2 is via a control line 14 connected to a frequency converter 20, which is controlled by a control unit S. becomes.
  • the frequency converter 20 is also used via the line 16 Main motor M1 driven, which drives the combing machine 1 via a gear 17.
  • the lower roller of the output roller pair 11 is driven by a motor M3 and a transmission 24, the motor M3 via the control line 26 with the control unit S is connected.
  • the pair of output rollers 11 is another pair of rollers 5 downstream, which is coupled via the path 36 to the drive of the pair of rollers 11 is.
  • the roller pair 5 provides the input roller pair to a subsequent sliver store 3 that.
  • the roller pairs 10, 11 each have a speed sensor 18 or 22 assigned to the signals via the lines 19 and 39 to the control unit S submit.
  • the sliver storage 3 is designed as a sag storage and at its output provided with a further pair of rollers 40.
  • the Memory 3 equipped with sensors S1 and S2, each of which the position of the sliver loop Monitor FS.
  • the sensors S1 and S2 are connected via line 35 to the Control unit S connected.
  • the drive of the pair of rollers 40 is via the drive path 27 removed from the drive path 38, which for the controlled drive of the Input roller pair 42 of the subsequent drafting stage II is responsible.
  • the roller pair 40 is followed by a measuring element 30, which has its signals determined outputs to the control unit S via the path 31.
  • the measuring element can be used with a inductive sensors or be equipped with grooved rollers.
  • the second drafting stage II is arranged on the measuring element 30 and is equipped with a Input roller pair 42 and an output roller pair 43 is provided.
  • the lower one Roller of the pair of input rollers 42 is driven by a differential gear 45, which is connected to a gear 47.
  • the differential gear 45 can by a Control motor M4 can be overridden.
  • the control motor M4 is via the control line 48 controlled by the control unit S.
  • the drive of the lower roller of the pair of rollers 43 takes place via a drive path 37, from the transmission 47, which is via the motor M5 is driven.
  • the motor M5 is connected to the control unit via the control line 70 S connected.
  • the transmission 47 drives the transmission 50 via the drive path 52, from which the calender rolls are shown via the schematically illustrated drive path 51 53 the funnel wheel 54 and the can plate 55 of a depositing device 60 are driven become.
  • the drive paths are shown only schematically on the representation of others Translation or reduction elements have been omitted for reasons of clarity.
  • the sliver assembly 8 released by the combing machine 1 becomes the drafting stage 1 fed and warped there for example five times.
  • the speeds of the roller pairs 10 and 11 are scanned by the speed sensors 18 and 22 and the Control unit S transmitted.
  • the synchronism between the combing machine units is via the same frequency converter 20 and the input roller pair 10 ensures a constant Tension delay in the fiber ribbon composite 8 is maintained.
  • the drive motor M1 for the comber represents the setting of the basic speeds of the Systems represents the "master", which, via the control unit S, the motor M3 for the drive the first drafting stage I and the motor M5 for driving the second drafting stage II and the tape storage device 60 as a "slave" with a predetermined basic speed ratio be tracked.
  • the ratio between The engines M1 and M3 are determined by the level of control intervention in the engine M3 changed, this deviation from the ongoing tracking of the Base speed of motor M3 is added (with a positive or negative sign).
  • the nonwoven fabric 28 formed in the first drafting stage 1 becomes a fiber band 12 summarized and passes through the pair of rollers 5 in the sliver storage 29.
  • the sliver is guided in the sag as a loop FS and over the roller pair 40 is withdrawn from this memory 29.
  • the position of the loop FS is monitored by sensors S1 and S2. As soon as one of the sensors S1 and S2 if the sliver loop FS is detected, a signal is sent via line 35 to the control unit S delivered.
  • the basic speed of the M5 motor is corresponding changed and thus also the withdrawal speed of the pair of rollers 40th This changed speed of the motor M5 is maintained until the Loop is again within the range of the two sensors S1 and S2. If no feedback is possible, there is a fault in the overall system and the system (combing machine 1 and drafting unit 6) is shut down. This can be about a timer not shown take place, which is integrated in the control unit S and The task is to monitor the time in which the sliver loop FS is outside the area of sensors S1 and S2. Will be a given time exceeded, this leads to the shutdown of the system described above.
  • the sliver storage 3 could (not shown) be provided with a closable delivery opening.
  • the values determined in the measuring element are sent to the control unit S via the path 31 dissipated and compared there with a target value (target).
  • target value target
  • the deviations (long-term) Regarding compliance with the sliver number the control unit S determined and depending on the size of the deviation corresponding control pulses delivered to the motor M3 for changing the speed of the output roller pair 11. Resulting changes in the conveying speed of the sliver 12 are caught in the storage 3 via the sag of the sliver loop FS.
  • the tracking of the basic speed of the M5 engine when recording the changed Loop FS through sensors S1 or S2 has already been described previously.
  • the Change of warpage between rollers 10 and 11 in the first drafting stage 1 again serves to return the sliver mass to a predetermined one Setpoint within a tolerance range.
  • Sampling the speeds over the Sensors 18 and 22 of the roller pairs 10 and 11 are used for monitoring and compliance of predefined delay ratios and thus determines the drive ratio of motors M3 to motors M1 and M2.
  • M1 is used as "Master led, which the motors M3 and M5 with respect to the basic speed as "Slave" to be tracked. After passing through the measuring element 30, this arrives Sliver 12 in the draft zone of the second drafting stage II between the Roller pairs 42 and 43.
  • the draft ratio between these two roller pairs the second drafting stage can be influenced via the differential gear 45, which is overridden by the M4 control motor. This override then occurs if the short-term fluctuations determined by the measuring element 30 are outside move a predetermined tolerance range and must be adjusted.
  • the control motor M4 receives its control pulses via path 48 and changes via the gear 45, the speed of the input roller pair 42 of the second drafting stage II. Highly dynamic control motors are used for this control intervention.
  • the regular use is delayed. That means time has to be taken into account be, which the measured and to be regulated point of the sliver 12 from Measuring element 30 up to a control point of use between the roller pairs 42 and 43 has traveled.
  • the sliver 9 formed in the second drafting stage II passes through a monitoring device 57 to the calender rolls 53 of a tape storage 60, where there is a Funnel wheel 54 is placed in a can K in the form of a loop.
  • Fig. 2 shows a similar device as in Fig. 1, wherein instead of the electrical coupling of the two motors M1 and M2 via the frequency converter 20 there is a mechanical drive linkage.
  • the Driving the input rollers 10 of the first drafting stage via the drive path 15 removed directly from the gear 17 of the combing machine. This makes it constant Drive ratio guaranteed.
  • the other facilities correspond to the example 1 and have already been described there. An additional speed monitoring
  • the two pairs of rollers 10 and 11 are not provided here, especially since one is fixed mechanical coupling of the input roller 10 is present.
  • Fig. 3 another embodiment is shown, where the drafting stage 1 with a constant working delay. This means that there is no rule intervention to compensate for long-term drift in the sliver mass.
  • the drive the drafting stage I takes place here via the motor M3, which drives a gear 24, from which the drive connections 23 and 29 to the roller pairs 10 and 11 to be led. From the drive path 29, the drive path 36 is removed, the one makes firm drive coupling between the pairs of rollers 11 and 5.
  • the aggregates, which follow the pair of rollers 5 correspond to the embodiment already described in Fig. 1, whereby reference is made here.
  • Is behind the pair of input rollers 10 schematically a combing head 7 (of a total of 8 combing heads) of the combing machine 1 is shown.
  • the combing head 7 is 90 ° with respect to the subsequent drafting unit 6 drawn in the horizontal twisted, which is particularly evident from the representation of the Fiber composite 8 can be seen in a triangular shape.
  • the long-term mass deviation is compensated (see Fig. 5) by changing the speeds of the winding rollers 58 and 59, which driven via the drive path 61 by the gear 62 or by the drive motor MW become.
  • the drive motor MW receives its control pulses via line 77 by the control unit S and is readjusted according to the signal of the measuring element 30.
  • By changing the speeds of the winding rollers 58 and 59 changes the tension in the wadding W, which is unwound from the winding 4 and one subsequent pliers unit 63 is supplied.
  • the pliers unit 63 will driven by the main motor M1 via the transmission 17 and the drive path 66.
  • the drive motor M1 is controlled via the control line 16 by a frequency converter 20, which also the drive motor M3 already described controls.
  • the drive 1 likewise drives the drive 17 via the drive path 65 Round comb 64 and the tear-off cylinder pair 67 following the pliers unit via the drive path 68. That of the tear-off cylinder pair 67 (as a rule, two such Tear-off cylinder arranged one behind the other) delivered fiber fleece 71 is over transfers a fleece table 72 to a funnel 75, in which a sliver is formed the fleece 71 is formed.
  • This sliver is on the conveyor table shown schematically FT filed and forms with those given off by the other combing heads Sliver a sliver composite 8, which to the pair of input rollers 10 subsequent drafting unit I is transferred.
  • the term that the long-term mass fluctuations in the amount of fibers in the area to be compensated "behind" the measuring element is in relation to the conveying direction F based.
  • the Drafting stage I can be operated with a constant draft ratio.
  • FIG. 4 is based on an evaluation diagram of a measured fiber sliver 12 depicts what is termed short-term and long-term fluctuations in mass is to be understood.
  • the mass m is plotted over time t.
  • the brief mass fluctuations (e.g. due to the soldering points on the combing machine) generate certain peaks in the diagram but essentially move around that horizontal tolerance field T.
  • the tolerance field T migrates from a horizontal plane, as shown by the Dashed area is shown schematically.
  • This long-term stripping of the sliver does not occur suddenly (except in the event of a belt break) but moves for a long time. That means the regulation of such a long-term drift does not require highly dynamic readjustment of the drive of the drafting rollers.
  • FIGS. 1 to 3 shows a reduced partial section corresponding to FIGS. 1 to 3 with a modified drive guide for the tape storage 60.
  • the drive of the Transmission 50 from a separate drive motor M6, which via the control line 78th is controlled by a frequency converter 79.
  • this frequency converter 79 via the control line 76, the drive motor M5 for the second Drafting unit stage II driven.
  • the other units already correspond to the version, as described for example in Figures 1 to 3.
  • a constant drive ratio is established via the same frequency converter 79 guaranteed between the tape storage 60 and the pair of output rollers 43.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP99810622A 1998-08-05 1999-07-12 Textilverarbeitende Maschine mit einer Streckwerkseinheit Expired - Lifetime EP0978581B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19835372A DE19835372A1 (de) 1998-08-05 1998-08-05 Textilverarbeitende Maschine mit einer Streckwerkseinheit
DE19835372 1998-08-05

Publications (3)

Publication Number Publication Date
EP0978581A2 EP0978581A2 (de) 2000-02-09
EP0978581A3 EP0978581A3 (de) 2001-04-04
EP0978581B1 true EP0978581B1 (de) 2004-01-21

Family

ID=7876551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810622A Expired - Lifetime EP0978581B1 (de) 1998-08-05 1999-07-12 Textilverarbeitende Maschine mit einer Streckwerkseinheit

Country Status (3)

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EP (1) EP0978581B1 (zh)
CN (1) CN1168863C (zh)
DE (2) DE19835372A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10004604B4 (de) * 2000-02-03 2018-04-05 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung zum Zuführen von Faserbändern an einer Spinnereimaschine, insbesondere Strecke, z.B. Regulierstrecke
US6453513B2 (en) * 2000-02-03 2002-09-24 TRüTZSCHLER GMBH & CO. KG Apparatus for introducing sliver into a textile processing machine
DE10236778B4 (de) * 2002-08-10 2011-05-05 Rieter Ingolstadt Gmbh Verfahren und Vorrichtung zum Verstrecken von mindestens eines Faserband
DE102005037836A1 (de) * 2005-08-08 2007-02-15 Maschinenfabrik Rieter Ag Verfahren zum Ablegen eines Faserbandes, Steuervorrichtung und Textilmaschinenkombination
CH700285A2 (de) * 2009-01-26 2010-07-30 Rieter Ag Maschf Antriebsvorrichtung für die Abreisswalzen einer Kämmmaschine.
DE102009050264A1 (de) * 2009-10-21 2011-05-12 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Karde, Strecke, Kämmmaschine oder Flyer, mit einem Tastwalzenpaar
JP5201234B2 (ja) * 2011-03-22 2013-06-05 株式会社豊田自動織機 コーマにおけるラップ供給制御装置及びラップ供給制御方法
DE102016119983A1 (de) * 2016-10-20 2018-04-26 Maschinenfabrik Rieter Ag Pneumatisches Fadenspeicherorgan, Arbeitsstelle einer Textilmaschine mit einem Fadenspeicherorgan und Textilmaschine mit einer Vielzahl von Arbeitsstellen mit einem Fadenspeicherorgan
DE102017102623A1 (de) * 2017-02-09 2018-08-09 TRüTZSCHLER GMBH & CO. KG Verfahren und Anlage zur Bearbeitung von Fasern
CN107745997B (zh) * 2017-11-14 2023-07-07 经纬纺织机械股份有限公司 纤维条输送装置单元
DE102020109963A1 (de) * 2020-04-09 2021-10-14 TRüTZSCHLER GMBH & CO. KG Anlage und Verfahren zur Herstellung eines gekämmten Faserbandes
CN113913978B (zh) * 2021-11-15 2023-01-31 常州宏大智能装备产业发展研究院有限公司 一种须条自调匀整装置及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403426A (en) * 1966-07-27 1968-10-01 Maremont Corp Textile sliver evening apparatus
DE1931929C3 (de) * 1969-06-24 1980-08-07 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Vorrichtung zum Vergleichmäßigen von textlien Faserbändern
DE2543839B1 (de) * 1975-10-01 1976-11-25 Graf & Co Ag Vorrichtung zum erzeugen eines gleichmaessigen textilen faserbandes
DE58907408D1 (de) 1988-12-22 1994-05-11 Rieter Ag Maschf Kämmaschine.
JPH05502701A (ja) * 1990-09-20 1993-05-13 マシーネンフアブリーク　リーテル　アクチエンゲゼルシヤフト 制御式フィードローラを備えたドラフト装置用駆動装置
CH683847A5 (de) 1991-09-20 1994-05-31 Rieter Ag Maschf Gesteuerter Wickelwalzenantrieb einer Kämmaschine.
GB2261884A (en) * 1991-11-26 1993-06-02 Hollingsworth Method and apparatus for forming sliver
US5943740A (en) * 1996-04-02 1999-08-31 Rieter Machine Works, Ltd. Combing machine with an autoleveller drafting arrangement

Also Published As

Publication number Publication date
DE19835372A1 (de) 2000-02-10
DE59908347D1 (de) 2004-02-26
CN1243893A (zh) 2000-02-09
CN1168863C (zh) 2004-09-29
EP0978581A2 (de) 2000-02-09
EP0978581A3 (de) 2001-04-04

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