EP1026295A2 - Procédé et dispositif pour le frisage à boíte de bourrage d'un fil - Google Patents

Procédé et dispositif pour le frisage à boíte de bourrage d'un fil Download PDF

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Publication number
EP1026295A2
EP1026295A2 EP00100230A EP00100230A EP1026295A2 EP 1026295 A2 EP1026295 A2 EP 1026295A2 EP 00100230 A EP00100230 A EP 00100230A EP 00100230 A EP00100230 A EP 00100230A EP 1026295 A2 EP1026295 A2 EP 1026295A2
Authority
EP
European Patent Office
Prior art keywords
thread
plug
thread plug
speed
control device
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Withdrawn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
EP00100230A
Other languages
German (de)
English (en)
Other versions
EP1026295A3 (fr
Inventor
Manfred Mayer
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Barmag AG
Saurer GmbH and Co KG
Barmag Barmer Maschinenfabrik 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 Barmag AG, Saurer GmbH and Co KG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP1026295A2 publication Critical patent/EP1026295A2/fr
Publication of EP1026295A3 publication Critical patent/EP1026295A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/167—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam including means for monitoring or controlling yarn processing
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/125—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including means for monitoring or controlling yarn processing
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets

Definitions

  • the invention relates to a method for upsetting a multifilament thread according to the preamble of claim 1 and a device for Implementation of the method according to the preamble of claim 11.
  • a Crimping device for example, designed as a texturing nozzle, which one Thread channel in which a thread through a hot medium, preferably air.
  • the thread channel opens into one Stowage chamber.
  • the thread plug is formed within the stuffer box.
  • the thread is deposited in loops on the surface of the thread plug and is compacted by the conveyor, which is above the thread plug can escape from the stuffer box through slots.
  • the thread plug will then led out of the stuffer box and by means of a subsequent Cooling device cooled down. After cooling, the thread plug becomes curled thread dissolved.
  • the crimp of the thread is in its intensity and stability mainly due to the formation of plugs and the thermal treatment of the Thread plug affected.
  • the temperature and pressure of the Funding also includes the dwell time of the thread plug during the thermal Treatment parameters that significantly influence the ripple result.
  • the supply and / or the has long been known Control the speed of withdrawal of the thread in such a way that a uniform Formation of the thread plug is observed during the process.
  • a such a device and such a method are for example in DE 1 236 126. This is used to monitor the thread plug Detection point at the end of the thread plug detected in its position and on a predetermined level by changing the take-off speed of the thread regulated.
  • the known method is only suitable to a limited extent with a thread to produce even crimp as there is no direct interference in the Formation of the thread plug enables. For example, fluctuations too considerable in the temperature or the pressure of the pumped medium Differences in the crimp of the thread lead.
  • DE 23 24 827 proposed a method and a device for which the heat supply for thread plug depending on the location of the Dissolution point of the thread plug is regulated.
  • the object is achieved by a method with the features according to claim 1 and solved by a device with the features according to claim 11.
  • the invention is characterized in particular by stable process control controlled and controlled plug formation. This will change the Take-off speed both for regulating the thread plug length and for Control of thread plug formation used.
  • the inventive combination between the position control of the opening point of the thread plug and the Control of thread plug formation has the advantage that regardless of that Wear of the crimping device the fluctuations in the parameter setting the crimping device are constantly compensated. The location of the thread plug remains unaffected by such fluctuations and leads to a stable Process flow.
  • a signal is given when the take-off speed changes to control at least one influencing the formation of the thread plug Parameters of the crimper generated.
  • the temperature and pressure of the pumped medium as Controlled parameters. For example, the Feed speed of the thread or the exit speed of the Thread plug can be made controllable from the crimping device.
  • a particularly preferred development of the method according to claim 2 has the advantage that the effects of control to form the Thread stopper are controllable. To do this, change the Take-off speed recurring at specified times by a Comparison between a setpoint and an actual value of Take-off speed determined.
  • the setpoint of the take-off speed can correspond to a stored optimal setting, for which corresponding Parameter settings of the crimps include.
  • the particularly preferred embodiment variant of the invention is characterized in that the position of the Resolution point and thus the controlled variable directly for the control of the parameter the crimping device is used. For this, the Take-off speed recurring at specified times on one specified setpoint. At the same time, the resolution point of the Thread stopper detected in its position. If there is a change in the location of the Resolution point, a corresponding signal for controlling the Parameters of the crimper generated.
  • the type of change in position of the thread plug corresponding Parameter changes generated.
  • the signal causes a parameter change that leads to a reduction in the Packing density of the thread plug leads.
  • an extension of the Thread plug causes the signal to change parameters, resulting in a Increasing the packing density of the thread plug leads.
  • the change in the pull-off speed can be done directly by a Take up device so that the thread without major Tension fluctuations are wound into a coil.
  • the thread is threaded using one of the Subtracting cooling device subtracted. There is a thread tension controlled winding of the thread.
  • control of the crimping device and the regulation of the thread plug length is in the invention Device realized in that a control device for control at least one parameter influencing the formation of the thread plug Crimping device is provided.
  • the control device is by a Signal line connected to the control device, so that for example Controlled variable, a command variable, a manipulated variable or one of the variables modified signal of the control device can be given.
  • the development of the device according to the invention is according to claim 13 particularly advantageous to monitor the effects of the control.
  • the situation is briefly regulated at a certain point in time of the dissolving point or the length of the thread stopper. Doing so the position of the resolution point continues to be detected by the sensor.
  • the sensor delivers thus directly a measured variable, which is used as a measure of the parameter change of the Crimping device can be used.
  • the further education enables thus the production of a crimped thread in which the Ripple quality kept iteratively to a uniform high quality becomes.
  • the device according to claim 14 is particularly good suitable.
  • the control device is continuously given a sensor signal, so that the control is superimposed on the control at the same time is executable.
  • FIGS. 1 to 3 each belong to one Spinning plant for the production of a crimped multifilament thread. It was in Figures 1 to 3 dispensed with the representation of the spinning device.
  • a thread is made from a thermoplastic melt in the spinning device a variety of filaments extruded and spun. The thread becomes after Cooling of the filaments withdrawn from one or more supply plants and if necessary stretched.
  • the Thread 1 shows a first exemplary embodiment of a device according to the invention shown to carry out the method according to the invention.
  • the Thread 1 through a feed mechanism 8 to a crimping device 2.
  • the Delivery unit 8 can thread 1 directly from a spinneret or from one Subtract upstream delivery plant.
  • the delivery plant 8 consists of a driven godet 5 and a freely rotatable overflow roller 6.
  • the thread 1 loops around the godet 5 and the overflow roller 6 several times before the thread 1 of the godet 5 runs to the crimping device 2.
  • the thread 1 becomes a thread plug formed by placing the thread in loops and compacting it.
  • the one from the Crimping device 2 emerging thread plug 3 is then in a Cooling device 4 guided along a cooling section.
  • the cooling section is through a cooling tube 7 is formed.
  • the cooling tube preferably has an air-permeable Wall on a sensor 18 is arranged in the end region of the cooling tube 7.
  • the Sensor 18, which is preferably designed as an electro-optical position detector, is used to determine the position of the release point of the thread plug 3. In Dissolution point, the thread plug 3 dissolves into a thread 1.
  • the thread 1 is withdrawn from the thread plug 3 by means of a withdrawal device 9.
  • the Discharge device 9 consists of a driven godet 10 and a free one rotatable overflow roller 12, both wrapped several times by the thread are.
  • the godet 10 is predetermined by the godet drive 11 Speed driven.
  • the take-off device 9 is a winding device 13 subordinate. In the winding device 13, the thread 1 becomes a bobbin 14 wound up.
  • the coil 14 is formed on a winding spindle 15 which is driven.
  • a pressure roller 16 bears against the circumference of the coil 14.
  • the length of the Thread stopper 3 regulated.
  • the sensor 18 is with a Control device 17 connected.
  • the control device 17 is in turn with the Godet drive 11 coupled so that the sensor 18, the control device 17 and the godet drive 11 form a closed control loop. Furthermore, it is Control device 17 through a signal line 19 with a control device 20 coupled.
  • the control device 20 is for controlling the formation of the Thread plug connected to the crimping device 2.
  • the optimum setting data for the crimp, thread stopper length and the take-off speed are determined at the beginning of a process and stored in the control device 17 and the control device 20. With these setting data, the thread 1 is crimped and wound into a bobbin. If the case now occurs that the thread plug is too loose, so that the thread is too weakly crimped, the length of the thread plug will inevitably increase. As a result, the position of the opening point of the thread plug 3 will shift towards the end of the cooling tube 7. This change in position is detected by the sensor 18 and displayed to the control device 17.
  • the positional deviation between a solo position L target and an actual position L actual is converted into a manipulated variable which is given to the godet drive 11 as a control variable.
  • the control variable causes a higher speed of the godet 10, so that the Pull-off speed of thread 1 increases. This shifts the Dissolution point of the thread plug in the direction of the target position. An overflow of the Thread plug from the cooling tube 7 is avoided.
  • the Control device 17 a signal which through the signal line 19 of the Control device 20 is abandoned.
  • the control device 20 is then change at least one parameter of the crimping device 2 such that the thread plug volume decreases.
  • the packing density of the thread plug increases so that a greater crimp of the thread is achieved. Regardless of the change in packing density remains throughout Time the dissolving point of the thread plug in a determined by the regulation Target position. However, the increased controlled take-off speed is due to the changed packing density now slowly returned to the original value.
  • the Winding device 13 preferably in dependence on the thread tension regulated.
  • a is in the thread run in front of the winding device 13 Thread tension sensor 37 arranged.
  • the thread tension sensor 37 is in FIG. 1 shown in dashed lines.
  • the measurement signal of the thread tension sensor 37 is the Rewinder 13 abandoned.
  • the drive of the winding spindle 15 is then regulated such that the Thread tension remains essentially constant.
  • FIG Control device 17 has a timer 23.
  • the Control device 17 specified a time sequence in which to determine At times, the control is interrupted briefly to a during this time to be able to control the formation of plugs in a controlled manner.
  • the thread 1 by the Crimping device 2 led to a thread plug 3.
  • the thread plug 3 will to a cooling device 4, which acts as a rotating cooling drum 21 is trained.
  • the stopper 3 on the circumference of the cooling drum 21 stored and passed over a portion of the cooling drum.
  • the cooling drum 21 has an air-permeable jacket.
  • the cooling drum 21 is a Vacuum generated so that the ambient air through the on the porous Scope of thread stopper 3 is passed.
  • the crimped thread 1 will at the dissolving point of the cooling device 4 by the winding device 13 withdrawn and wound into a coil 14.
  • the winding spindle 15 is through a spindle drive 22 driven.
  • the spindle drive 22 is on the Control device 17 controlled.
  • the control device 17 is provided with a sensor 18 connected.
  • the sensor 18 is in the area of the opening point of the thread plug 3 arranged in the vicinity of the cooling drum surface.
  • the crimping device 2 is controlled by the control device 20.
  • the control device 20 is connected to the Control device 17 and via a separate line with the sensor 18 connected.
  • FIG. 2 The operation of the device shown in Fig. 2 is essentially the same as the operation of the device from FIG. 1 already described. In this respect, reference is made to the description of the exemplary embodiment in FIG. 1 taken.
  • the control device 17 has a timer 23.
  • the spindle drive 22 is set by the timer 23 to a desired value V Soll of the withdrawal speed at a point in time which occurs repeatedly due to a predetermined time sequence.
  • the control device 17 will simultaneously signal this state of the control device 20 via the signal line 19.
  • the signals coming in from the sensor 18 are now evaluated directly in the control device 20. If an extension of the thread plug 3 is signaled by the sensor 18, a parameter change takes place in the crimping device 2, which results in an increase in the packing density. If, on the other hand, a shortening of the thread plug 3 is signaled, the control device will change at least one parameter of the crimping device 2 such that a loose thread plug 3 is generated.
  • the position control of the thread plug 3 is carried out again by adjusting the take-off speed.
  • the set parameters of the crimping device remain unchanged.
  • the change in parameters can therefore initially have an effect on the formation of plugs. Only after a steady state has occurred with the changed parameters of the crimping device does the control be interrupted again.
  • the process of controlling the parameters of the crimping device 2 is repeated. Controlled control of the crimping device 2 is achieved by this procedure. Interference from the formation of plugs can thus be compensated for in a very short time, so that a substantially uniform crimping quality of the thread is achieved.
  • the crimping device is as one Texturing nozzle 24 with a pair of rollers 32 and 33 to form the thread plug 3 executed.
  • the texturing nozzle 24 has a central thread channel 25.
  • the Thread channel 25 consists essentially of two sections by one narrowest cross-section (not shown here) are separated from each other.
  • several nozzle bores 26 open into the thread channel 25.
  • the nozzle bores 26 have an annular chamber 27 connected.
  • the annular chamber 27 is connected via the supply line 28 to an outside the texturing nozzle 4 arranged pressure source 30 connected.
  • a heating device 29 is provided for heating the print medium.
  • Thread channel 25 with a very small opening angle.
  • Thread channel 25 is directly followed by an expansion chamber 31.
  • a pair of rollers is arranged below the expansion chamber 31.
  • the The pair of rollers consists of rollers 32 and 33.
  • the pair of rollers 32 and 33 is driven by the roller drive 36.
  • a cooling device 4 is provided below the pair of rollers.
  • the Cooling device 4 consists of a cooling tube 7, inside of which the Thread plug 3 for cooling purposes is guided up to one Resolution point. In the opening point, the thread plug 3 becomes the crimped one Thread 1 dissolved.
  • the thread 1 is by means of the cooling device 4th subordinate trigger device 9 deducted.
  • the trigger device 9 consists of a godet 10 and an overflow roller 12, the thread several times are entwined.
  • the godet 10 is driven by the godet drive 11.
  • two sensors 34 and 35 are arranged at a distance from one another in the thread running direction, which form the position sensor 18 and detect the point of dissolution of the thread plug 3.
  • a signal is generated by the sensor 34 when the thread plug 3 falls below a minimum length L min .
  • the sensor 35 generates a signal as soon as the thread plug 3 exceeds a maximum length of L max . As long as the thread plug is within the permissible range, no signal is generated by sensors 34 and 34.
  • the sensors 34 and 35 are connected to the control device 17.
  • the control device 17 is connected to the drive 11 of the trigger device 9 - as described for FIG. 1.
  • control device 17 via the signal line 19 with the Control device 20 coupled.
  • the control device 20 is used for control the heating device 29, the pressure source 30 and the roller drive 36 can one or all parameters such as temperature T of the print medium, the pressure P of the print medium or the Control the conveying speed F of the pair of rollers.
  • FIG. 3 The operation of the device shown in FIG. 3 is identical to that in FIG Fig. 1 described embodiment. It is therefore referred to the previous functional description.
  • FIGS. 1 to 3 Devices represent possibilities, such as the method according to the invention can be operated. Basically, the process can also be carried out in Combination of individual device parts of the illustrated embodiments operate.
  • cooling devices shown are exemplary and by others Device parts can be replaced.
  • the cooling tube can be, for example, by several Form rods arranged in a ring shape to one another.
  • the cooling drum could can also be replaced by a flat cooling screen.
  • Cooling effect can also be generated by fans on the cooling devices of a cooling air flow.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP00100230A 1999-02-06 2000-01-17 Procédé et dispositif pour le frisage à boíte de bourrage d'un fil Withdrawn EP1026295A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904973 1999-02-06
DE19904973 1999-02-06

Publications (2)

Publication Number Publication Date
EP1026295A2 true EP1026295A2 (fr) 2000-08-09
EP1026295A3 EP1026295A3 (fr) 2003-11-26

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EP00100230A Withdrawn EP1026295A3 (fr) 1999-02-06 2000-01-17 Procédé et dispositif pour le frisage à boíte de bourrage d'un fil

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US (1) US6305059B1 (fr)
EP (1) EP1026295A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1607500A1 (fr) * 2004-06-16 2005-12-21 Maschinenfabrik Rieter Ag Dispositif de texturation avec démêlage étirage et freinage
WO2006076933A1 (fr) * 2005-01-22 2006-07-27 Oerlikon Textile Gmbh & Co. Kg Procede et dispositif pour friser un fil multifilament

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50206481D1 (de) * 2001-05-10 2006-05-24 Saurer Gmbh & Co Kg Vorrichtung zum stauchkräuseln eines synthetischen multifilen fadens
DE10202788A1 (de) * 2002-01-25 2003-07-31 Rieter Ag Maschf Texturieranlage und Texturierdüse hierfür
EP1583855B1 (fr) * 2003-01-15 2011-06-15 Oerlikon Textile GmbH & Co. KG Procede et dispositif pour filer et onduler un fil synthetique
US9896786B2 (en) * 2012-08-23 2018-02-20 Columbia Insurance Company Systems and methods for improving and controlling yarn texture
US9951445B2 (en) 2012-08-23 2018-04-24 Columbia Insurance Company Systems and methods for improving and controlling yarn texture
US11078606B2 (en) 2015-04-24 2021-08-03 Iropa Ag Method and device for producing crimped multifilament synthetic yarn

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
NL126454C (fr) 1959-04-30
GB1422949A (en) 1972-05-17 1976-01-28 Heathcoat & Co Ltd Process and apparatus for the production of bulked and crimped yarn
US3977058A (en) * 1973-05-24 1976-08-31 Phillips Petroleum Company Method and apparatus for controlling yarn plug length
US3961042A (en) * 1974-10-03 1976-06-01 Millmaster Onyx Corporation Quaternary ammonium co-polymers for controlling the proliferation of bacteria
US4369555A (en) * 1976-06-04 1983-01-25 Phillips Petroleum Company Yarn processing apparatus
US4118843A (en) 1976-07-16 1978-10-10 Barmag Barmer Maschinenfabrik Aktiengesellschaft Processes and apparatus for thermal treatment of filaments
EP0021573B1 (fr) * 1979-05-18 1983-03-23 JAMES MACKIE & SONS LIMITED Procédé et appareil de texturation de fil thermoplastique
US4399597A (en) * 1980-11-19 1983-08-23 Akzona, Incorporated Method and apparatus for production of textured yarn
RU2041981C1 (ru) 1989-11-11 1995-08-20 Бармаг АГ Фильера для текстурирования синтетической нити
DE4224454C2 (de) * 1991-07-30 1996-06-05 Barmag Barmer Maschf Verfahren zur Regelung der Temperatur eines Heizmediums zur Erhitzung eines synthetischen Fadens und Texturiereinrichtung für einen synthetischen Faden
GB9202397D0 (en) * 1992-02-05 1992-03-18 British Tech Group Texturing yarn
DE59206744D1 (de) * 1992-02-07 1996-08-14 Rieter Ag Maschf Verfahren und Vorrichtung zum kontinuierlichen Kräuseln von thermoplastischen Fäden
US5727293A (en) * 1994-11-29 1998-03-17 Maschinenfabrik Rieter Ag Method and apparatus for continuous crimping of thermoplastic threads

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1607500A1 (fr) * 2004-06-16 2005-12-21 Maschinenfabrik Rieter Ag Dispositif de texturation avec démêlage étirage et freinage
DE102004029219A1 (de) * 2004-06-16 2006-01-05 Maschinenfabrik Rieter Ag Texturiereinrichtung mit Entwirrstreckenbremse
WO2006076933A1 (fr) * 2005-01-22 2006-07-27 Oerlikon Textile Gmbh & Co. Kg Procede et dispositif pour friser un fil multifilament

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Publication number Publication date
US6305059B1 (en) 2001-10-23
EP1026295A3 (fr) 2003-11-26

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