EP1295835A2 - Procédé pour fixer une limite d'épuration dans un épurateur de fil électronique - Google Patents

Procédé pour fixer une limite d'épuration dans un épurateur de fil électronique Download PDF

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Publication number
EP1295835A2
EP1295835A2 EP02017290A EP02017290A EP1295835A2 EP 1295835 A2 EP1295835 A2 EP 1295835A2 EP 02017290 A EP02017290 A EP 02017290A EP 02017290 A EP02017290 A EP 02017290A EP 1295835 A2 EP1295835 A2 EP 1295835A2
Authority
EP
European Patent Office
Prior art keywords
curve
yarn
cleaning
limit
setting
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.)
Granted
Application number
EP02017290A
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German (de)
English (en)
Other versions
EP1295835B1 (fr
EP1295835A3 (fr
EP1295835B2 (fr
Inventor
Martin Zipperer
Ladislav Hajek
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.)
Rieter Ingolstadt GmbH
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau AG
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Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP1295835A2 publication Critical patent/EP1295835A2/fr
Publication of EP1295835A3 publication Critical patent/EP1295835A3/fr
Publication of EP1295835B1 publication Critical patent/EP1295835B1/fr
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Classifications

    • 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
    • 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 for setting a cleaning limit with an electronic yarn cleaner, the possible yarn errors in a sorting scheme sorted by error value and error length and where the cleaning limit is selected using a curve and on Yarn cleaner is set.
  • a cleaning limit is in this Coordinate system with at least two points, where between a predefined connection line as the course of the cleaning limit is pulled. Outside of the outermost points, a definable becomes Course of the cleaning limit selected. To choose as freely as possible With this method, it is possible to allow the course of the cleaning limit necessary to use a variety of points and in the coordinate system determine what an elaborate setting of the cleaning limit requires. If, on the other hand, only very few points are used, then setting the cleaning limit by using the specified defined connection line not flexibly adaptable.
  • the possible yarn errors in arranged in a sorting scheme sorted by error value and error length is, for example, a table, a table-like coordinate system, a coordinate system or the like. About the interested The sorting scheme covers areas of error value and error length the possible yarn defects, so that the cleaning limit in the scheme is definable. The cleaning limit then separates the tolerable Yarn defects from the intolerable errors. Preferably gives the thread cleaner after setting the cleaning limit during the current thread examination an error message if the determined Thread errors above or below the cleaning limit or lies on the cleaning limit. Based on the error signal z. B. in an open-end spinning machine, the cutting out of a thread section caused with the error. Or the yarn produced is the Errors and the location of the error are registered so that an error statistic is created.
  • the error value is a measure of the size of the error. This can, for example the error cross-section, e.g. falling below or exceeding a target yarn cross section. Or the error value is a deviation from a predetermined target color, the yarn spectrally from a sensor is analyzed. Or it becomes the hairiness of the yarn that is continuously produced registered, the density or number of fiber ends protruding from the thread is registered.
  • Other examples of error values are an error mass, e.g. can be detected with a capacitive sensor, foreign matter components, e.g. with an optical sensor through absorption and / or reflection is detected, or the like.
  • the cleaning limit is indicated by a curve with exactly one point in the Sorting scheme defined, whereby the curve course of the curve itself is arbitrary but is defined. This makes it particularly quick and easy Set the cleaning curve by the user of the electronic Yarn cleaner possible.
  • the user is not only a set curve is available, but it can be the optimal one Curve course from a given set of curves with different Select curve shape. This enables quick and flexible adjustment the cleaning limit to the desired course.
  • z. B the user on a selection screen two or more of selectable waveform displayed, which he simply by entering a selection number or select by clicking with a pointer element can.
  • the scalability of the curve selected in this way means that the Curve shape can be influenced to the desired curve shape to approximate as optimally as possible. Due to the scalability, too any existing tolerances when determining the error length or the error value can be easily compensated. For example, if the Error value or length determination a relative error over the entire Area. The error value and / or the are therefore advantageous Error length scalable.
  • the curve is advantageous through the Scaling factor compressed or stretched. Also by turning or tilting the curve is easily adapted to the desired curve Course. The scaling starting from the point becomes particularly advantageous with which the curve is defined in the sorting scheme.
  • a ring spinning machine or one Rewinding machine is the running yarn in a conventional manner Thickness measurement pulled through a measuring slot of a sensor.
  • the sensor registered z. B. optically, the thickness or capacitive the mass of the solid yarn. Because of the known speed and the measured diameter of the yarn Errors classified according to the error cross section and the error length. This is e.g. B. also known from DE 40 20 330 C2. Within a tolerance range the errors classified in this way should be continuously drawn by the sensor Yarns are tolerated, d. H. the yarn corresponds to the desired one Quality. However, if the classified errors are outside of this range, so these errors must be at a later processing stage or in the current processing stage by cutting out of the yarn become. The tolerable and the intolerable range are separated by a cleaning limit.
  • the setting is made by selecting the course of the Cleaning curve RG and setting point P.
  • Selection and setting can e.g. B. on an input device of the yarn cleaner. To is either a table or a coordinate system two-dimensional displayed on a screen.
  • the setting and selection can also e.g. on a multi-line LCD display by entering the appropriate parameters respectively.
  • the input device can be an input device for the yarn cleaner be or an input device that z. B. with the machine control is connected to a textile machine. With the input device are by appropriate Software implementation queried the parameters and if necessary after completing the entry via a communication link to Transfer yarn cleaner.
  • Figures 1 to 5 is the selection and setting of the cleaning limit shown graphically in two dimensions for illustration. The corresponding However, setting and selection can also be easily made using an alphanumeric parameterization and alphanumeric input on an input device.
  • FIG. 1 shows a diagram of yarn defects in which the length of the defect L is plotted on the x-axis and the diameter ⁇ of the thread defect on the y-axis.
  • the standard value of the desired yarn diameter is intended ⁇ .
  • the upper curve RG + denotes the upper cleaning limit, beyond which a yarn defect is cut out.
  • the cleaning limit RG + is a curve that was selected from a set of predetermined curve shapes (see FIG. 3).
  • the position of the cleaning limit RG + is determined in the diagram by moving the setting point P +.
  • the point P + can be moved in the x and y axis direction.
  • the curve shape of the cleaning limit RG + goes beyond the lower limit of the yarn defect length L min and beyond the upper limit of the maximum yarn defect length L max .
  • the cleaning curve shape RG 0 can be stretched or compressed in the x direction by a factor.
  • the cleaning limit RG x is obtained by stretching the basic shape RG 0 .
  • the cleaning curve can be stretched or compressed in the y direction by a factor.
  • the cleaning limit RGy is generated by stretching the basic curve shape RG 0 .
  • a tilted cleaning limit RG ⁇ is obtained if the basic cleaning shape RG 0 is rotated by an angle ⁇ . The stretching and / or tilting takes place in FIG. 2 around the setting point P, but can optionally be set in relation to any point on the diagram or the basic shape RG 0 .
  • FIG. 3 shows various, selectable curve profiles of the cleaning limit.
  • the curve profile RG 0 has a relatively large tolerance for large cross-sectional errors up to the lower third of the maximum length.
  • the rest of the course is roughly staircase-shaped, with transitions flowing between the steps.
  • curve shape RG 1 large thickness errors are only tolerated up to a small length range and the error classes are then also gradually reduced, with ramp-shaped transitions being selected here.
  • large error cross-section deviations are tolerated up to the mean error length, until a continuous transition to a small error cross-section takes place with long lengths.
  • thick cross-sectional defects are tolerated only up to very short lengths.
  • the curve shape RG C is a customer-defined curve shape, which can be individually specified and can also be selected as a selection option from the curve shapes.
  • This curve course RG C a larger error diameter is tolerated in the middle length range than immediately to the left and right of this length range. This setting is useful, for example, if, due to production, there is often a larger error cross-section in this length range and production should not be stopped continuously because this error occurs.
  • there is a tolerable result including the mean error lengths over all lengths in the middle range, so that overall the averaged error specifications must be observed even with this error.
  • the course of the upper (lower) detergent limit is only falling (increasing) or sectionally constant, since the longer the yarn defect, the more noticeable is a defect in a fabric.
  • FIG. 4 illustrates the entry of the cleaning limit on the basis of a curve course RG 0 in a tabular error classification.
  • this tabular error classification this does not take place continuously as in the diagram in FIG. 1, but rather discrete error classes are defined, each of which summarizes a certain range of error lengths and error diameters.
  • the curve shape RG 0 is also fixed with the setting point P + within the tabular matrix and then converted by the input device to border areas between the error classes.
  • the curve RG 0 thus finally results in the cleaning limit RG + used, which has a step-like curve.
  • the curve shape RG 0 is assigned to the cleaning limit RG + for each matrix element, whereby the section of the cleaning limit RG + runs below the respective class if the curve shape RG 0 intersects less than half of the area of the class below this class.
  • FIG. 5 shows a further example of setting a cleaning limit for a yarn cleaner which examines for optical color defects in the yarn produced.
  • this yarn cleaner for example, foreign fibers of a different color are recognized and removed by the yarn cleaning.
  • the yarn is scanned by a wavelength-sensitive sensor and the wavelength is plotted over the defect length L in the diagram.
  • the yarn produced is to maintain two wavelength bands ⁇ A and ⁇ B of tolerable yarn errors.
  • the upper cleaning limit RG A + and the lower cleaning limit RG A- are set by the corresponding setting points P. 5 shows, for example, the setting point P A + for setting the upper cleaning limit RG A + .
  • the upper cleaning limit RG B + and the lower cleaning limit RG B- are specified for the lower, tolerable wavelength band ⁇ B. All color-length errors outside of these two wavelength band ranges are recognized by the electronic yarn cleaner and, if necessary, separated from the running yarn.
  • an adjustment unit for adjusting the Cleaning limits according to Fig. 1 also the setting routine implemented for setting a color error according to FIG. 5.
  • the Parameters are transferred to the electronic twine cleaner, both of which Defects types (color and thickness errors) and corresponding error signals supplies.
  • the data evaluation can be done e.g. B. with a fast digital Signal processor done. Only for optical signal acquisition different optoelectronic components are required, which the Register the thread diameter on the one hand and the color of the thread on the other.
  • Figure 6A shows a yarn cleaner system consisting of the machine center or yarn cleaner control unit 10 for setting the detergent limit and a yarn detergent base system 20.
  • Setting the detergent limit according to The method described above takes place in a first embodiment in the machine center 10 of the spinning machine, which also processes the spinning machine controls and controls. Or the setting takes place at a second embodiment in a yarn cleaner central unit 10, which is independent from the machine center of the spinning machine for setting Yarn cleaners 22, whose control and evaluation is used. In this case it says then the yarn cleaner central unit 10 with a machine center Spinning machine in connection to exchange control commands or other data.
  • the central unit 10 comprises a CPU as a curve and parameter generator.
  • the CPU is connected to a display device or a display 12 on which the parameter curves are shown in graphic form.
  • the CPU 11 is connected to an input device 14, for example an alphanumeric keyboard, or the input device 14 is integrated as a so-called touch screen on the display 12.
  • the input device 14 is used to select the basic form of the cleaning limits RG 0-3 or the form RG C predefined by the customer, to determine the point P in the coordinate system for the yarn errors and to adapt the selected curve (scaling factors as described above, so that modified curves RG x, y, ⁇ arise).
  • the CPU 11 fetches the predetermined basic forms of the cleaning limit RG 0-3 or already pre-edited form RG c , mod from a memory 15 and stores the edited curves there for intermediate storage. Furthermore, parameter data are temporarily stored in the memory 15, which are temporarily stored due to the already edited cleaner limit that is to be set for the yarn cleaners 22. After the user of the yarn cleaner system has defined the finally edited cleaner curve and determined it for (later) setting on the yarn cleaner, the parameter data are generated by the CPU 11, for example, by transforming the defined cleaner curve. During the transformation, the defined cleaner curve is scanned by means of a predetermined rasterization and "closest" value pairs are determined, see, for example, the "actual" cleaning curve RG + used by the yarn cleaner and FIG. 4. The value pairs are temporarily stored in the memory 15 and then at the setting of the yarn cleaner is retrieved from the memory 15 and transmitted to the yarn cleaner 22 by a communication device 13 via the communication path of the basic systems 20, 30. This also applies correspondingly to FIG. 6B.
  • the parameters are finally transferred edited cleaning curve for setting the yarn cleaner 22 via a yarn cleaner Communication system.
  • This has a cleaner bus 21 with which the yarn cleaners 22 each individually via a data interface are connected.
  • the twine cleaner setting is preferably made before commissioning the spinning machine or before the production of a new batch, can also take place during the ongoing spinning operation, so that here a change in the cleaning limit during production he follows.
  • Data and status parameters measured continuously are reversed from the yarn cleaners 22 via the cleaner bus 21 to the yarn cleaner central unit 10 transferred.
  • FIG. 6B shows a second embodiment of the yarn cleaning system, in which integrated the communication structure into that of the spinning machine is.
  • the setting is made either via the machine control center or a thread cleaning central unit 10.
  • the parameters for programming the cleaner curve in the yarn cleaners 22 become a machine bus here 31 transmitted, transmitted by this to section controllers 32, which in turn parameters the yarn cleaners via a section bus 33 22 transmitted.
  • section controllers 32 There are several spinning stations on each section controller 32 connected to the spinning machine, this by the section controller controlled and monitored.
  • the yarn cleaners 22 can also be used directly with the section controller 32 be connected.
  • the number of yarn cleaners is 22 and the number of section controllers 32 given only as an example, where it goes without saying that their number can be significantly higher.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP02017290.4A 2001-08-28 2002-08-01 Procédé pour fixer une limite d'épuration dans un épurateur de fil électronique Expired - Lifetime EP1295835B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001141963 DE10141963A1 (de) 2001-08-28 2001-08-28 Verfahren zum Einstellen einer Reinigungsgrenze bei einem elektronischen Garnreiniger
DE10141963 2001-08-28

Publications (4)

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EP1295835A2 true EP1295835A2 (fr) 2003-03-26
EP1295835A3 EP1295835A3 (fr) 2003-08-27
EP1295835B1 EP1295835B1 (fr) 2006-03-08
EP1295835B2 EP1295835B2 (fr) 2013-09-25

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1521085A1 (fr) * 2003-09-13 2005-04-06 Saurer GmbH & Co. KG Procédé et dispositif pour la détermination sans contact de la vitesse d'un fil
WO2005047155A1 (fr) * 2003-11-10 2005-05-26 Saurer Gmbh & Co. Kg Nettoyeur de file
WO2009076782A1 (fr) * 2007-12-18 2009-06-25 Uster Technologies Ag Procédé et dispositif d'évaluation de substances étrangères dans un objet textile en mouvement à contrôler
WO2010034131A2 (fr) 2008-09-29 2010-04-01 Uster Technologies Ag Surveillance de la qualité d'épissures dans un article textile allongé à contrôler
BE1018992A3 (de) * 2008-08-14 2011-12-06 Oerlikon Textile Gmbh & Co Kg Verfahren zur qualitatsuberwachung eines langsbewegten garnes an einer arbeitsstelle einer kreuzspullen herstellenden textilmaschine.
CN102965786A (zh) * 2012-12-03 2013-03-13 吴江市科时达纺织有限公司 纱线处理量大的清纱器
EP3290371A1 (fr) * 2016-08-29 2018-03-07 Murata Machinery, Ltd. Dispositif de réglage de limite de nettoyage et machine de bobinage de fil
EP3527520A1 (fr) * 2018-02-14 2019-08-21 Murata Machinery, Ltd. Dispositif de réglage de limite d'épuration et machine de bobinage de fil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012102576A1 (de) 2012-03-26 2013-09-26 Maschinenfabrik Rieter Ag Verfahren zur Garnüberwachung
JP2015140252A (ja) * 2014-01-30 2015-08-03 村田機械株式会社 糸状態表示装置、糸処理装置、及び、糸状態表示方法

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1521085A1 (fr) * 2003-09-13 2005-04-06 Saurer GmbH & Co. KG Procédé et dispositif pour la détermination sans contact de la vitesse d'un fil
CN100422745C (zh) * 2003-09-13 2008-10-01 绍勒有限责任两合公司 无接触测定一根运动中的纱线速度的方法和装置
WO2005047155A1 (fr) * 2003-11-10 2005-05-26 Saurer Gmbh & Co. Kg Nettoyeur de file
CN100415622C (zh) * 2003-11-10 2008-09-03 欧瑞康纺织有限及两合公司 清纱器
US7424800B2 (en) 2003-11-10 2008-09-16 Oerlikon Textile Gmbh & Co. Kg Yarn cleaner
WO2009076782A1 (fr) * 2007-12-18 2009-06-25 Uster Technologies Ag Procédé et dispositif d'évaluation de substances étrangères dans un objet textile en mouvement à contrôler
CN101648660B (zh) * 2008-08-14 2012-09-05 欧瑞康纺织有限及两合公司 在纺织机械的工位上监控纱线质量的方法
BE1018992A3 (de) * 2008-08-14 2011-12-06 Oerlikon Textile Gmbh & Co Kg Verfahren zur qualitatsuberwachung eines langsbewegten garnes an einer arbeitsstelle einer kreuzspullen herstellenden textilmaschine.
EP2338819A1 (fr) 2008-09-29 2011-06-29 Uster Technologies AG Surveillance de la qualité d'épissures dans un produit de test textile longitudinal
WO2010034131A3 (fr) * 2008-09-29 2010-09-30 Uster Technologies Ag Surveillance de la qualité d'épissures dans un article textile allongé à contrôler
WO2010034131A2 (fr) 2008-09-29 2010-04-01 Uster Technologies Ag Surveillance de la qualité d'épissures dans un article textile allongé à contrôler
CN102965786A (zh) * 2012-12-03 2013-03-13 吴江市科时达纺织有限公司 纱线处理量大的清纱器
CN102965786B (zh) * 2012-12-03 2015-09-30 吴江市科时达纺织有限公司 纱线处理量大的清纱器
EP3290371A1 (fr) * 2016-08-29 2018-03-07 Murata Machinery, Ltd. Dispositif de réglage de limite de nettoyage et machine de bobinage de fil
CN107794738A (zh) * 2016-08-29 2018-03-13 村田机械株式会社 清纱门限设定装置、纱线卷绕机以及处理部
EP3527520A1 (fr) * 2018-02-14 2019-08-21 Murata Machinery, Ltd. Dispositif de réglage de limite d'épuration et machine de bobinage de fil
CN110155809A (zh) * 2018-02-14 2019-08-23 村田机械株式会社 清纱门限设定装置及纱线卷绕机
EP3702306A1 (fr) * 2018-02-14 2020-09-02 Murata Machinery, Ltd. Dispositif de réglage de limite d'épuration et machine de bobinage de fil

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Publication number Publication date
EP1295835B1 (fr) 2006-03-08
EP1295835A3 (fr) 2003-08-27
DE50205990D1 (de) 2006-05-04
DE10141963A1 (de) 2003-03-20
EP1295835B2 (fr) 2013-09-25

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