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WO1994025869A1 - Procede permettant de diagnostiquer des erreurs dans le processus de fabrication d'un fil synthetique - Google Patents

Procede permettant de diagnostiquer des erreurs dans le processus de fabrication d'un fil synthetique Download PDF

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Publication number
WO1994025869A1
WO1994025869A1 PCT/EP1994/001316 EP9401316W WO9425869A1 WO 1994025869 A1 WO1994025869 A1 WO 1994025869A1 EP 9401316 W EP9401316 W EP 9401316W WO 9425869 A1 WO9425869 A1 WO 9425869A1
Authority
WO
WIPO (PCT)
Prior art keywords
thread
parameter
parameters
thread tension
generated
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.)
Ceased
Application number
PCT/EP1994/001316
Other languages
German (de)
English (en)
Inventor
Jörg Spahlinger
Manfred Mayer
Ulrich Enders
Bernd Neumann
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 Barmag AG
Original Assignee
Barmag AG
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, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Priority to DE4492654D priority Critical patent/DE4492654D2/de
Priority to DE4492654A priority patent/DE4492654B4/de
Publication of WO1994025869A1 publication Critical patent/WO1994025869A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0229—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions knowledge based, e.g. expert systems; genetic algorithms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/006—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B65H63/062—Electronic slub detector
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/36—Textiles
    • G01N33/365—Filiform textiles, e.g. yarns
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
    • G05D15/01—Control of mechanical force or stress; Control of mechanical pressure characterised by the use of electric means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • G07C3/14—Quality control systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/60—Details of processes or procedures
    • B65H2557/65—Details of processes or procedures for diagnosing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • the object of the invention is to obtain data in a running spinning process for a synthetic thread by measurement which is meaningful for the quality of the thread and the bobbin produced.
  • the data should therefore allow a quality statement about the product produced and / or the process management and process correction by control or regulation. Also - in an emergency while accepting a poor quality - the early interruption of the manufacturing process and the avoidance of rejects should be made possible.
  • fault diagnosis is also to be understood as meaning the process monitoring and execution carried out on the basis of fault diagnosis.
  • errors should be understood to mean any deviations from normal process and thread parameters.
  • a first process parameter which is dependent on the process control is first continuously measured.
  • the measured value curve measured in this way is continuously evaluated, and an indication signal is generated as a function of this evaluation or a curve derived from the measured value curve.
  • at least a second process parameter dependent on the process control is also continuously measured and evaluated. If an error-typical behavior is found in the first and at least one further process parameter, an indication signal is generated generated.
  • the first and at least the second process parameter can be interdependent. An error in the sense defined here will disrupt this dependency, which forms the basis for a detection.
  • the first and at least the second process parameter can be independent of one another. An error can disturb this independence, ie the error forming the basis for the detection will be noticeable in a simultaneous change in both process parameters. Certain errors lead to typical changes in the at least two process parameters, ie the process parameters show behavior typical of the error.
  • the method compares the at least two process parameters simultaneously or correlates them in time, and an indication signal is generated if the behavior typical of the error indicates a deviation from the normal course of the process.
  • the at least two process parameters are linked. If this link indicates an error-typical behavior with regard to the normal course of the process, an indication signal based on it is generated.
  • the method can be used in particular when spinning a synthetic thread.
  • the winding speed can be higher than 2000 m / min and the thread can be drawn off directly from the spinneret by the winding device.
  • a pre-oriented yarn (POY) is created on this ice.
  • a godet can also be inserted to create a POY.
  • a full constant orientation can be achieved, in particular by interposing a heater, so that a fully oriented, drawn thread is produced (fully oriented yarn).
  • one-dimensional monitoring is no longer carried out by evaluating only one parameter. Rather, at least two parameters are evaluated and in this respect - so to speak - a two-dimensional or multi-dimensional examination of the method is carried out by the observation results relating to the two or more parameters e.g. B. again compared or correlated with one another in time and / or linked to one another and the error signal is obtained from the linkage.
  • the parameters in particular are the thread tension, the bobbin weight, the thread thickness, the thread temperature, or any other setting parameters such as spinning head pressure, pump speed, spinning head temperature, godet speed, godet temperature.
  • the programmed setting parameters are also considered as reference parameters if no constant course of these setting parameters is specified.
  • the traversing movement and the traversing speed which have a decisive influence on the course of the thread tension measured in the winding zone, are particularly suitable as such a programmed parameter. In all these cases, it is necessary to relate the measured values or the quantities derived therefrom, which initially differ in their dimensions, and to determine their interdependency. This is superfluous in the method according to claim 7.
  • a similar parameter eg the thread tension measured at different points in the spinning process, for example within the drawing zone between two godets on the one hand and in the winding zone on the other.
  • FIG. 1 schematically shows the process sequence, namely a spinning process for producing and drawing a chemical thread, in which one of the exemplary embodiments is used.
  • Fig. 2 shows another embodiment of the invention, for which the description of Fig. 1 applies accordingly.
  • a thread 1 is spun from a thermoplastic material.
  • the thermoplastic material is fed to the extruder 3 through a filling device 2.
  • the extruder 3 is driven by a motor 4.
  • the motor 4 is controlled by a motor controller 8.
  • the thermoplastic material is melted in the extruder. This is done on the one hand by the deformation work which is introduced into the material by the extruder.
  • a heating device 5 is provided in the form of a resistance heater, which is controlled by a heating control 50.
  • the pump motor is controlled by the pump controller 45 in such a way that the pump speed can be set sensitively.
  • the pump 9 conveys the melt flow to the heated spin box 10, on the underside of which the spinneret 11 is located.
  • the melt emerges from the spinneret 11 in the form of fine filament strands 12.
  • the filament strands pass through a cooling shaft 14. In the cooling shaft 14 by blowing 15 an air flow transversely or radially on the
  • Filament cluster directed. This cools the filaments.
  • the filament sheet is combined into a thread 1 by a preparation roller 13 and provided with a preparation liquid.
  • the thread is drawn out of the cooling shaft and from the spinneret through a take-off godet 16.
  • the thread wraps around the trigger godet several times.
  • an overflow roller 17 is arranged which is limited to the godet 1.
  • the overflow roller 17 is freely rotatable.
  • the godet 16 is driven by the godet motor 18 and frequency transmitter 22 at a presettable speed. This withdrawal speed is many times higher than the natural exit speed of the filaments from the spinneret 11.
  • the deduction godet 16 is followed by a pair of stretch godets 19.1. and 19.2. with another overflow roller 20.1. and 20.2.
  • the structure of both corresponds to the take-off godet 16 with overflow roller 17.
  • the input frequency of the frequency transmitter 22, 23.1. and 23.2. is predetermined uniformly by the controllable frequency transmitter 24. In this way, the frequency transmitters 22, 23.1. and 23.2. individually the speed of the take-off godet 16 or the stretching godets 19.1. and 19.2. can be set.
  • the speed level of trigger godet 16 and stretch godets 19.1., 19.2. is, however, set collectively on the frequency generator 24.
  • the first stretch godet 19.1. has a heating device 53 through which the godet jacket is heated and the thread is warmed up accordingly can be. In this way, the thread properties achieved by stretching can be influenced to a large extent.
  • the temperature of the heating device 53 can be controlled by the heating control 52.
  • the thread 1 arrives at the so-called "head thread guide" 25 and from there into the traversing triangle 26.
  • the traversing device 27 shown as a reversing thread roller and a traversing thread guide guided therein, which travels the thread over the length of the bobbin 33 leads (traverse stroke, double stroke).
  • the thread loops behind the traversing device 27 around a contact roller 28 only shown in FIG. 1.
  • the contact roller 28 lies on the surface of the bobbin 33. It is used to measure the surface speed of the coil 33.
  • the coil 33 is formed on a sleeve 35.
  • the sleeve 35 is clamped on a winding spindle 34.
  • the spindle 34 is driven by the spindle motor 36 and spindle control 37 in such a way that the surface speed of the coil 33 remains constant. As a result, the spindle speed decreases hyperbolically in the course of the winding travel.
  • the speed of the freely rotatable contact roller 28 on the contact roller shaft is sensed as a control variable by means of a ferromagnetic insert and a magnetic pulse generator, and the spindle motor 36 as a function of the output signal of the pulse generator controlled.
  • the traversing device 27 is driven by a traversing motor 56.
  • the traversing motor 56 is controlled by a traversing control device 57 (FIG. 2).
  • the signal output by the thread tension sensor is smoothed before it is fed to the computer.
  • the output signal is first applied to the filter 61. Periodic changes in the thread tension corresponding in frequency to the traversing frequency are smoothed in the filter 61. Therefore, only those changes appear in the output device of the thread tension that are caused by events other than short-term events of high frequency.
  • the thread tension force smoothed in this way now includes such thread tension force fluctuations which are based on a change in the traversing speed.
  • Changes in the thread tension are also caused by the traversing movement itself, ie by the thread being moved back and forth along the bobbin.
  • the thread path between the head thread guide 25 and the traversing device is lengthened and shortened periodically with the result of a corresponding change in the thread tension.
  • These changes in thread tension have the same frequency as the traversing.
  • the traversing frequency is specified by the number of double strokes (one back and forth movement of the traversing thread guide) per time unit. Typical values are between 500 and 1500 double strokes / min.
  • the influencing of the thread tension force signal by these short-term fluctuations can also be eliminated by the output signal of the thread tension force meter 8 being passed through the filter 61.
  • This filter contains conventional electronic components which bring about the desired smoothing of the output signal which is as adjustable as possible.
  • a suitable setting of this filter ensures that even such thread tension changes that occur with the traversing frequency are eliminated and converted to an average value.
  • the continuously measured thread tension is output in the device 48 as a thread tension record (thread tension record).
  • the output signal of the device 48 is given to a computer unit 46.
  • the thread tension record for the entire winding travel or substantial — selected — parts of the winding travel can be stored in the computer 46.
  • the thread tension signal is processed in a manner which is the subject of this application and of the exemplary embodiments described later.
  • the computer structure for all exemplary embodiments is shown identically for both figures.
  • the computer initially has a comparison unit 58.
  • this comparison unit has the task of relating the traversing speed of the traversing law memory 47 and the thread tension force signal of the thread tension output device 48 to one another. This determines to what extent the thread tension curve is dependent on the curve of the traversing speed.
  • the temporal changes in the traversing speed are of particular interest. Both the amount of the change and the rate of change, that is to say the change derived over time, have an influence on the thread tension.
  • the course of the traversing speed can be converted into a hypothetical tensile force, as would be caused by changing the traversing speed, by means of previously determined conversion factors.
  • this thread tension signal is referred to as reference signal B in the context of this application.
  • the described production of the reference signal also takes place in the embodiment according to FIG. 2, but is not shown there. It should be expressly pointed out that this reference signal, which is related to the oscillation, already corresponds to the requirements of this application for multidimensional quality monitoring and is suitable for evaluation. Further dimensions of observation are described below. It should be mentioned that these further dimensions of observation can also be applied directly to the thread tension signal 48 and lead to a similar increase in the meaningfulness of this thread tension signal. However, the reference to the specified traversing law described here results in a refinement of the statement.
  • the reference signal B is therefore applied to a further comparison device 66 of the computer 46.
  • the reference signal obtained from the thread tensile force is possibly processed further to a variable derived therefrom, such as the mean value, the first or second derivative (change over time), the standard deviation, the roughness of the signal curve, etc.
  • the reference value or the size derived therefrom compared to another parameter. Basically, a process and / or a product parameter comes into consideration.
  • the diameter of the coil 33 is continuously detected as a further state parameter, or a quantity derived from the diameter. Weight is also considered as such a size. However, disturbing factors such as the density of the winding, trapped air, crossing angle or the like are then included.
  • the weight determined cannot be regarded as an absolute value.
  • the rotational speed of the spindle 34 and the rotational speed of the contact roller 28, which lies on the surface of the coil are measured.
  • ferromagnetic inserts 30, 38 in the spindle 34 as well as the contact roller 28 and corresponding pulse generators 31, 39 are used.
  • the speed of the contact roller 28 also serves as a control variable for the adjustment of the spindle motor 36 via spindle control 37 (see above)
  • the The speed of the spindle 34 is also used - as already mentioned in connection with FIG. 2 - to control the traversing device 27.
  • both signals are converted to diameter D.
  • a computer unit 67, to which both signals are applied, is used for this purpose.
  • the diameter signal is then given to the comparison device 66.
  • a further signal can be derived from the diameter signal, which is given to the comparison device 66 instead of the diameter signal or additionally.
  • the square of the diameter or the first mathematical derivation of the square of the diameter can be considered as such a derived signal. Since the thread speed is constant, this derivative must also be a constant. The first derivative is in fact proportional to the amount of thread supplied. Deviations therefore indicate a malfunction of the process. If it is determined in the comparison unit 66 that these deviations coincide with disturbances in the thread tensile force, it is possible to draw decisive conclusions about the procedure and the product it is the thread or the bobbin wound from it.
  • a comparison of two state parameters thus takes place in the comparison device 66.
  • the word "comparison” is to be understood in the broadest sense. This can be a difference.
  • a uniform order of magnitude must be established for both parameters.
  • it can also be a comparison in the non-mathematical sense. For example, crises, e.g. Extreme values are determined and ascertained whether the extreme values for both parameters coincide in time or at least have a temporal relationship. If such a temporal relationship arises, this allows conclusions to be drawn about certain errors.
  • the opposite can also apply in the same way; That is, if crises only occur with one of these variables, this can be an indication of certain errors or causes of errors.
  • the parameters are related to each other after a certain weighting.
  • the output signal of the comparison unit 66 is given to a further comparison unit 59.
  • a comparison can be made with a setpoint, which is specified by setpoint generator 60.
  • the quality signal is formed from this comparison and output by the computer.
  • the quality signals Q which have been generated as described above, are processed as follows:
  • the quality signal can be output as an optical or acoustic alarm or as a record. With the writing, the generated coil is marked and classified.
  • These output signals from the computer 46 can in particular be used as a controlled variable for controlling an adjustment parameter of the spinning and drawing process.
  • the output signals of the computer 46 can, however, also be used to identify the quality of the coils produced which have been generated by the method.
  • the setpoint generator defines tolerance values for the reference value or the quantities derived therefrom, as well as error limits, according to which it is measured whether a coil with A quality, B quality or as a committee is to be evaluated.
  • the quality signal Q can also only serve as an alarm signal and e.g. be used to interrupt the process and avoid waste production.
  • the quality signal can - alternatively or additionally - in particular one or more of the control devices
  • the extruder control is activated in particular when no metering pump 9 is used. In this case the extruder acts as a pump and by controlling the extruder control, ie the speed of the extruder can influence the output of the extruder.
  • the throughput through the spinning head 10 and the spinneret 11 can be controlled by the
  • Pump control 45 ie the speed of the metering pump 9, can be influenced.
  • the cooling is influenced by the control of the cooling air control 51. This affects the thread titer. In particular, it is also possible to influence the uniformity of the individual filaments by using special cooling devices by means of which the filament shares and / or the spinneret is cooled in sectors.
  • individual system parts may be interchangeable, in this case other parameters are controlled accordingly.
  • the extruder can be replaced by a discharge pump and there are also various other options for cooling the filament sheet.
  • a further heater can also be specified in or instead of the stretching devices.
  • the stretching by godets can also be omitted.
  • the thread is either drawn off from the spinneret by a single godet and conveyed to the winding head, or is immediately drawn off the spinneret by the winding device.
  • the stretching also by other elements, e.g. B. another heating device, in particular a heating pipe, to be replaced or supplemented.
  • the speed of the godet 16 and the godet 19.1. and 19.2. influenced without changing the speed ratio. In this case, the drawing remains constant, but the thread speed is changed. This can influence the titer.
  • the stretch control 23.1. or 23.2 By controlling the stretch control 23.1. or 23.2. the speed ratio between the godets 19.1./19.2./16 is influenced and thus the stretching ratio is changed. By changing the stretch ratio, the strength ratio of the thread, but also the titer, can be changed.
  • the spindle control can also control the circumferential speed of the coil 33, which is regulated by the contact roller 28, by means of the quality parameter. This results in particular in influencing the bobbin structure and the thread tension with which the thread is deposited on the bobbin.
  • the previously described influencing parameters can be detected more reliably than previously with the method according to this invention, if it is previously determined through tests that errors with regard to these influencing parameters lead to a characteristic course of the corrected parameters.
  • the following can be detected: change in the titer by adjusting the pump speed 44, the heater 5, by contamination of the nozzle, by changing the take-off speed of the godet 16 - lack of filaments, e.g. B. by filament breakage Lack of preparation (consumption of preparation liquid, disruption of preparation roll 13)
  • the quality signal can be obtained by looking at the thread tension and the bobbin weight, the thread tension and a thread tension measured at another point, the thread tension and the traversing law.
  • Other parameters are:
  • the bulging of the end faces of the coil which can be determined by optical or pneumatic scanning, noise generation and noise analysis, the coil weight.
  • FIG. 2 shows an exemplary embodiment in which the thread tension, as measured between the two stretching godets 19.1 and 19.2, is specified as a further parameter.
  • a thread tension meter 68 is arranged between the two godets. This thread tension meter determines the thread tension of the thread running in the drawing and fixing zone. This thread tension is determined on the one hand by the speed of the godets 19.1 and 19.2, but also by the heating action of the heating device 53 in the godet 19.1 and by other factors. However, the thread tension fluctuation caused by does not go into this thread tension IS
  • the thread tension force measurement by the thread tension force sensor 68 is therefore on the one hand much closer to the origin and processing of the thread, but on the other hand it is largely independent of the further processing, in particular winding.
  • the courses resulting from the thread tension force meter 68 and the thread tension force meter 8, possibly after clearing the traversing influences, are accordingly in the comparison device; 66 compared with each other. With this comparison, the temporal correlation of the course of crises etc. can be determined. Deviating trends can be observed. One can (identify singular events in one or the other zone). From all of this, quality statements can be obtained which are particularly meaningful for the procedure and the quality of the product.

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  • Engineering & Computer Science (AREA)
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  • General Physics & Mathematics (AREA)
  • Textile Engineering (AREA)
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  • Bioinformatics & Computational Biology (AREA)
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  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

L'invention concerne un procédé permettant de diagnostiquer des erreurs dans le processus de fabrication d'un fil synthétique. Selon ce procédé, un premier paramètre de processus dépendant de la conduite du déroulement du processus est mesuré et analysé. Un signal d'indication d'erreur est produit d'après l'analyse réalisée ou d'après une courbe dérivée. Au moins un second paramètre de référence dépendant également de la conduite du déroulement du processus est mesuré et évalué en continu. Le signal d'indication d'erreur est produit lorsqu'un comportement caractéristique d'une erreur est détecté dans le premier et au moins dans un autre paramètre.
PCT/EP1994/001316 1993-04-29 1994-04-26 Procede permettant de diagnostiquer des erreurs dans le processus de fabrication d'un fil synthetique Ceased WO1994025869A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4492654D DE4492654D2 (de) 1993-04-29 1994-04-26 Verfahren zur Fehlerdiagnose in einem Herstellungsprozess eines synthetischen Fadens
DE4492654A DE4492654B4 (de) 1993-04-29 1994-04-26 Verfahren zur Fehlerdiagnose in einem Herstellungsprozess eines synthetischen Fadens

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DEP4314049.1 1993-04-29
DE4314049 1993-04-29
DEP4320424.4 1993-06-21
DE4320424 1993-06-21
DEP4325632.5 1993-07-30
DE4325632 1993-07-30
DE4329213 1993-08-31
DEP4329213.5 1993-08-31

Publications (1)

Publication Number Publication Date
WO1994025869A1 true WO1994025869A1 (fr) 1994-11-10

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Application Number Title Priority Date Filing Date
PCT/EP1994/001316 Ceased WO1994025869A1 (fr) 1993-04-29 1994-04-26 Procede permettant de diagnostiquer des erreurs dans le processus de fabrication d'un fil synthetique

Country Status (4)

Country Link
CN (1) CN1047000C (fr)
DE (1) DE4492654B4 (fr)
IT (1) IT1269604B (fr)
WO (1) WO1994025869A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6110403A (en) * 1998-04-01 2000-08-29 Barmag Ag Method of producing a synthetic yarn
EP0751244A3 (fr) * 1995-06-30 2001-09-19 B a r m a g AG Procédé pour le réglage de la force de tension de fil
WO2001073171A1 (fr) * 2000-03-29 2001-10-04 Dienes Apparatebau Gmbh Dispositif de regulation, de commande et d'alimentation en energie pour machines textiles
EP1260617A1 (fr) * 2001-05-25 2002-11-27 Georg Sahm Gmbh & Co. Kg Procédé et dispositif pour la fabrication de fils multifilamentaires de polymères thermoplastiques
WO2005054551A1 (fr) 2003-12-05 2005-06-16 Saurer Gmbh & Co. Kg Procede et dispositif de gestion d'ordre dans un processus de fabrication d'un produit fibreux
WO2006013065A1 (fr) * 2004-07-31 2006-02-09 Saurer Gmbh & Co. Kg Procede et dispositif pour gerer la qualite lors de la fabrication d'un produit polymere de forme allongee
WO2008012093A3 (fr) * 2006-07-26 2008-03-27 Niederrhein Hochschule Procédé et agencement pour déterminer la qualité du fil et/ou la qualité de bobine d'un fil continu à l'aide d'anémometrie laser doppler
WO2020035415A1 (fr) * 2018-08-17 2020-02-20 Oerlikon Textile Gmbh & Co. Kg Procédé de surveillance d'un procédé de filage à l'état fondu et dispositif de filage à l'état fondu

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CN103060973A (zh) * 2012-12-26 2013-04-24 苏州昭人纺织有限公司 一种纺织机用断线报警装置
DE102016119866A1 (de) * 2016-10-18 2018-04-19 Reifenhäuser GmbH & Co. KG Maschinenfabrik Verfahren und Anlage zur Erzeugung eines Vlieses aus Fasern
DE102018109816B3 (de) * 2018-04-24 2019-10-24 Yxlon International Gmbh Verfahren zur Gewinnung mindestens eines signifikanten Merkmals in einer Serie von Bauteilen gleichen Typs und Verfahren zur Klassifikation eines Bauteils eienr solchen Serie
CN109884066A (zh) * 2019-01-22 2019-06-14 江苏恒力化纤股份有限公司 一种离线检测长丝丝卷油污疵点的方法

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EP0457450A1 (fr) * 1990-05-15 1991-11-21 Rieter Scragg Limited Méthode pour la graduation de la qualité d'un fil

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EP0751244A3 (fr) * 1995-06-30 2001-09-19 B a r m a g AG Procédé pour le réglage de la force de tension de fil
US6110403A (en) * 1998-04-01 2000-08-29 Barmag Ag Method of producing a synthetic yarn
WO2001073171A1 (fr) * 2000-03-29 2001-10-04 Dienes Apparatebau Gmbh Dispositif de regulation, de commande et d'alimentation en energie pour machines textiles
EP1260617A1 (fr) * 2001-05-25 2002-11-27 Georg Sahm Gmbh & Co. Kg Procédé et dispositif pour la fabrication de fils multifilamentaires de polymères thermoplastiques
US6884053B2 (en) 2001-05-25 2005-04-26 Georg Sahm Gmbh & Co. Kg Apparatus for producing a multifilament yarn from a thermoplastic polymer
WO2005054551A1 (fr) 2003-12-05 2005-06-16 Saurer Gmbh & Co. Kg Procede et dispositif de gestion d'ordre dans un processus de fabrication d'un produit fibreux
US7496421B2 (en) 2003-12-05 2009-02-24 Saurer Gmbh & Co. Kg Method and apparatus for order control in a production process for a fiber product
WO2006013065A1 (fr) * 2004-07-31 2006-02-09 Saurer Gmbh & Co. Kg Procede et dispositif pour gerer la qualite lors de la fabrication d'un produit polymere de forme allongee
WO2008012093A3 (fr) * 2006-07-26 2008-03-27 Niederrhein Hochschule Procédé et agencement pour déterminer la qualité du fil et/ou la qualité de bobine d'un fil continu à l'aide d'anémometrie laser doppler
CN101501490B (zh) * 2006-07-26 2013-12-04 威克股份有限公司 基于激光多普勒测速法确定运行线的纱线质量和/或卷轴质量的方法和装置
WO2020035415A1 (fr) * 2018-08-17 2020-02-20 Oerlikon Textile Gmbh & Co. Kg Procédé de surveillance d'un procédé de filage à l'état fondu et dispositif de filage à l'état fondu

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CN1108459A (zh) 1995-09-13
CN1047000C (zh) 1999-12-01
IT1269604B (it) 1997-04-08
DE4492654B4 (de) 2004-10-21
ITMI940835A1 (it) 1995-10-29
ITMI940835A0 (it) 1994-04-29

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