WO2005031327A1 - Dispositif de detection des proprietes d'une nappe de tissu - Google Patents

Dispositif de detection des proprietes d'une nappe de tissu Download PDF

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Publication number
WO2005031327A1
WO2005031327A1 PCT/CH2004/000567 CH2004000567W WO2005031327A1 WO 2005031327 A1 WO2005031327 A1 WO 2005031327A1 CH 2004000567 W CH2004000567 W CH 2004000567W WO 2005031327 A1 WO2005031327 A1 WO 2005031327A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
computer
portable device
devices
stationary
Prior art date
Application number
PCT/CH2004/000567
Other languages
German (de)
English (en)
Inventor
Tim Palmer
Beat Emch
Original Assignee
Uster Technologies 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 Uster Technologies Ag filed Critical Uster Technologies Ag
Priority to EP04761907A priority Critical patent/EP1671111A1/fr
Publication of WO2005031327A1 publication Critical patent/WO2005031327A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/898—Irregularities in textured or patterned surfaces, e.g. textiles, wood
    • G01N21/8983—Irregularities in textured or patterned surfaces, e.g. textiles, wood for testing textile webs, i.e. woven material
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/10—Indicating, warning, or safety devices, e.g. stop motions
    • D04B35/20—Indicating, warning, or safety devices, e.g. stop motions responsive to defects, e.g. holes, in knitted products
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H3/00—Inspecting textile materials
    • D06H3/08—Inspecting textile materials by photo-electric or television means

Definitions

  • the invention relates to a device for recording properties of a web.
  • a device for the automatic monitoring of fabric webs which is attached to a weaving machine and continuously scans the fabric web just created there.
  • This device contains an electro-optical scanning head which sweeps over the fabric web and thereby detects properties such as fabric defects in the fabric or fabric web.
  • the device In order to be able to detect certain properties such as tissue defects, the device must be correctly set before use. This means that parameters of the tissue to be produced and limit or threshold values with which the device can work must be specified.
  • parameters or threshold values can often only be determined by carrying out a learning process with a part of the relevant web, in which case it is examined whether the device works satisfactorily with the values for the parameters and / or threshold values specified first, and wherein parameters or threshold values be adjusted or adjusted based on initial work results until the device solves the task satisfactorily ie for example, reporting errors that are not considered acceptable.
  • a disadvantage of such known devices can be seen in the fact that parameters and / or threshold values that have to be specified for the device either have to be known in advance or have to be determined by the device itself, for example in a test run or a learning process. This means that the device does this on the one hand trained and corresponding program parts and on the other hand, that the known device can not be used for productive purposes in the time in which such setting values are determined. Viewed overall, this means that the use of the device is more expensive.
  • the invention as characterized in the claims, thus solves the problem of avoiding the disadvantages mentioned and makes it possible to obtain setting values for the detection of properties of the web as quickly and easily as possible.
  • the stationary scanning device is permanently assigned to a web and a portable device which is used at a freely selectable location.
  • a computer and devices for transmitting data between the computer, the fixed scanning device and the portable device are also provided.
  • the portable device and the computer serve to determine setting values for the stationary scanning device.
  • Temporary connections and transportable electronic data carriers are conceivable as devices for the transmission of data.
  • the portable device and the stationary scanning device preferably each have at least one optically operating sensor, which are identical to one another.
  • Several stationary scanning devices and a portable device and a computer can be provided.
  • the stationary scanning device is attached to a machine for producing a textile web, for example a weaving machine, a knitting machine or a knitting machine, and is used to monitor a textile web thereon.
  • the stationary scanning device can also be attached to a machine for finishing a textile web and used to monitor a finished textile web. It is also conceivable to attach the stationary scanning device to a machine for testing a textile web and to use it to monitor a tested
  • a portable device can also be used for the same task on several similar machines or the fixed scanning devices attached to them, which contributes to the fact that the costs for the device, calculated per machine, are very low.
  • the setting values can be calculated in a central computer for all stationary scanning devices, which reduces the complexity of the stationary scanning device and thus saves costs. It is also unnecessary to cut out a piece of the material web, for example, in order to do this in one to investigate fixed known flatbed scanners.
  • optimal parameters or setting values for stationary scanning devices can be determined even before the material web reaches the scanning device arranged stationary on the machine.
  • the optimal setting values can be determined with the device at a perfect point on a web, even when the web is at a standstill. Wiring of the machines or the stationary scanning devices only for the transmission of parameters and setting values can be omitted, since these can also be transmitted from the portable device directly via temporary connections or via transportable data carriers provided for this purpose. With the portable device, additional tasks can be accomplished. For example, it can be used to examine a sample of a previously produced web that is objected to by a customer because it contains, for example, errors that have been approved by the stationary scanning device. By scanning this sample with the portable device, better setting values for the subsequent production can be determined.
  • FIG. 1 shows a part of a device according to the invention in a perspective view
  • Fig. 2 shows a second possible embodiment of the part according to Fig. 1 and
  • Fig. 3 shows a device in use on several machines for production.
  • a sensor 4 is installed in the housing 2, which can be, for example, a so-called “contact type image sensor”, such as is installed in a flatbed scanner or a fax machine, for example Sensor 4 makes it possible to come into contact with a web 6, of which only a part is shown here.
  • Sensor 4 and thus portable device 1 is connected to a control unit 8, shown schematically here, via a connection shown here as a flexible line 7
  • the control unit 8 controls the functions of the sensor and the data memory and can also be designed as a computer
  • the data memory stores images that the sensor 4 takes from the web 6 or values such as brightness values that the web 6 from the sensor 4
  • An impeller 9, which can roll on the web 6, can also be seen on the device or the device 1 and serves to provide information about a Delivered distance when the device 1 sweeps the web 6.
  • the impeller is connected to a length encoder in a manner known per se.
  • FIG. 2 shows another embodiment of part of the device according to the invention, namely a portable device 10, here also with a housing 11.
  • the device 10 also has a sensor 12, which can correspond to that of the embodiment according to FIG. 1.
  • a control unit 15 with a data memory can optionally also be accommodated in the housing 11, here, for example, in the upper part of the housing 11.
  • the mode of operation of this control unit 15 largely corresponds to that described for FIG. 1, but can additionally be designed to control the movement of the sensor 12.
  • Such a connection can be a detachable cable, a data bus or a wireless transmission option.
  • Fig. 3 shows the device according to the invention in a schematic representation.
  • One recognizes several machines for the production of material webs here for example three weaving machines 16, 17, 18 on which a material web 19, 20, 21 is produced.
  • Fixed scanning devices 22, 23, 24 are arranged in front of the webs 19, 20, 21 and fastened on the weaving machines 16, 17, 18.
  • a portable device 1, 10, as is known from FIGS. 1 or 2 is shown here in use on the web 20.
  • Sensors 35 which are preferably identical to sensors 4, 12 of portable device 1, 10, are shown in stationary scanning device 22.
  • the same properties of webs 19 are preferred in portable device 1 or 10 and in stationary scanning devices 22, 23, 24 , 20, 21 detected.
  • the portable device 1, 10 of the stationary scanning device 22, 23, 24 in each case previously.
  • the portable device 1, 10 is preferably only so long that it can accommodate a commercially available sensor 4, 12, for example designed as a sensor bar. In most cases, it can only cover part of the width of the webs 19, 20, 21.
  • Fixed scanning devices, as they are referred to here with 22, 23, 24, are known for example from patent application CH 1234/03.
  • a central computer 27 can also be seen, for example as so-called PC can be formed. Its task is to determine parameters and to derive setting values for the stationary scanning devices 22, 23, 24 from these parameters.
  • the computer 27 can also contain a so-called expert system.
  • Electronic data carriers 30 are preferably provided for communication between the central computer 27 and the stationary scanning devices 22, 23, 24, for which a writing device 27a is provided on the stationary scanning devices 22, 23, 24, reading devices 22a, 23a, 24a and on the computer 27 ,
  • Such data carriers 30 are transportable and have a memory, the content of which can be read in the reading devices 22a, 23a, 24a and written in the writing device 27. For example, they are transported by hand between the computer 27 and the reading devices.
  • the reading devices 22a, 23a, 24a and writing device 27a can also be designed to perform both functions, ie writing and reading.
  • a connection 29 can be designed as a temporary connection between the computer 27 and the portable device 1, 10.
  • the connection 29 is designed to be detachable or wireless in a manner known per se.
  • a so-called universal serial bus (USB) which is provided with a releasable connection to the control unit 8, 15, is particularly suitable as a releasable connection 29.
  • the computer 27 can also be temporarily connected on the one hand to the portable device 1, 10 and on the other hand permanently to the stationary scanning devices 22, 23, 24.
  • a data bus 28, for example a so-called Ethemet data bus, can be used for this purpose, which connects the computer 27 to the stationary scanning devices.
  • a detachable connection 31 connects the computer 27 to the portable device 1, 10 or its control unit 8, 15.
  • the portable device 1, 10 is shown here at the top left in FIG. 3, also shown in a different environment. It lies here on a section 32 of a web, which is isolated here, ie is not shown on the machine with which the web is produced.
  • the cutout 32 can be a sample of a material web from which the ideal setting values can be derived, or it can be a faulty part from which errors are to be recognized which, as already mentioned, one would like to have recognized in the subsequent production.
  • the computer 27 can also be integrated in the portable device 1, 10, which means that then only a preferably temporary, detachable or wireless connection to the stationary scanning units 22, 23, 24 is necessary.
  • the operation of the present invention is as follows: If a new web 19, 20 and / or 21 is to be generated, the machines 16, 17, 18 are put into operation in a manner known per se and therefore not shown here, so that they each produce a web 19, 20, 21 which are pulled under the fixed devices 22, 23, 24 and monitored by them in a known manner, whereby certain, preselected properties of the material webs are recorded. If the webs are the same, a single machine can be put into operation first. The device 1, 10 is then intended to capture a part of a web 20 which is typical. This can mean, for example, that a part of a web 20 that has, for example, no errors or only admissible errors has been selected with the human eye.
  • the movable, portable device 1, 10 on this selected part, so that the properties such. B. the web 20 detected.
  • the detection of the properties can consist, in a manner known per se and therefore not described in more detail here, in that a part of the surface of the web 20 is scanned by a sensor 4, 12 so that an image of a part of this surface can be obtained.
  • the sensor 4 must be moved in the direction of an arrow 33 in accordance with the embodiment in FIG. 1, which causes the sensor 4 to transmit a plurality of image lines to the control unit 8 and this in addition by an encoder that is actuated by the impeller 9 receives the path that the sensor 4 has traveled on the web 20.
  • control unit 8 can generate an image of the web 20 in its data memory, which image consists of electronic information.
  • This information consists of pixels that are derived from measured values. Such measured values can indicate intensities of reflected light, gray values, color values, etc.
  • This information is then fed to the computer 27, for example via the connection 29, which can use it to prepare setting values for the fixed devices 22, 23, 24, which it can use via a data carrier 30 or the data bus 28 and the connection 31 to the fixed scanning devices 22, 23, 24 or the reading devices 22a, 23a, 24a.
  • a data carrier 30 is described, for example, in patent application CH 0025/03.
  • Another machine web can also be produced on each machine 16, 17, 18.
  • the portable device 1, 10 must be placed on each product web 19, 20, 21, for example, so that the computer 27 can calculate setting values for each stationary scanning device 22, 23, 24 from the data thus determined. If a portable device is used, as shown in FIG. 2, it can also be placed on the stationary web, because the sensor 12 is driven so that it executes a movement in the direction of the arrow 13 and thus Area 14 sweeps over the web. This area 14 then corresponds to the image that the computer 27 prepares from the material web and uses to derive setting values for the fixed devices 22, 23, 24.
  • the device according to the invention makes it possible, for example, to carry out all of the computing work that is necessary to derive setting values in the central computer 27, which contains the necessary programs.
  • the machines 16, 17, 18 can also be stopped after a short production time in order to use the portable device 1, 10 according to the invention to search for a favorable location for recording the normal properties and then to record them and to process them in the computer 27 to set values. Then the quality of the recording is as good as possible, and one is certain that rejects are recognized very early. Since the movable, portable device 1, 10 basically has the same elements as the fixed devices 22, 23, 24, the same properties are also recorded identically.
  • the portable device 1, 10 can carry a battery which supplies it with the necessary energy. Guides can also be provided on the machines 16, 17, 18, as denoted in FIG. 3 by 34 for the machine 17, in order to guide a device in the configuration according to FIG. 1 during use.
  • the portable device 1, 10 can preferably also be specially designed, for example, to check the light and air permeability of the material web, the angles in thread systems, the uniformity of the appearance, color deviations or, for example, to recognize binding patterns.
  • the portable device can alternately be presented with several parts of material webs for image acquisition which contain acceptable and unacceptable errors in order to optimize the setting parameters more and more. This can also happen if the stationary scanning devices are already working. However, their setting values are then replaced periodically or continuously.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un dispositif de détection des propriétés d'une nappe de tissu. Pour obtenir facilement et rapidement des valeurs de réglage pour la détection des propriétés de la nappe de tissu. A cet effet, on utilise au moins un dispositif de balayage (22, 23, 24) stationnaire, affecté de manière fixe à la nappe de tissu (19, 20, 21), et un appareil portable (1, 10) pouvant être transporté pour être utilisé dans un lieu librement choisi. On utilise également un calculateur (27) et des équipements (29, 30) permettant la transmission de données entre le calculateur, le dispositif de balayage stationnaire et l'appareil portable.
PCT/CH2004/000567 2003-09-26 2004-09-09 Dispositif de detection des proprietes d'une nappe de tissu WO2005031327A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04761907A EP1671111A1 (fr) 2003-09-26 2004-09-09 Dispositif de detection des proprietes d'une nappe de tissu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1646/03 2003-09-26
CH16462003 2003-09-26

Publications (1)

Publication Number Publication Date
WO2005031327A1 true WO2005031327A1 (fr) 2005-04-07

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ID=34383949

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Application Number Title Priority Date Filing Date
PCT/CH2004/000567 WO2005031327A1 (fr) 2003-09-26 2004-09-09 Dispositif de detection des proprietes d'une nappe de tissu

Country Status (3)

Country Link
EP (1) EP1671111A1 (fr)
CN (1) CN1886647A (fr)
WO (1) WO2005031327A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103590231A (zh) * 2013-10-30 2014-02-19 吴江华宏软件有限公司 一种用于纺织布料检验的方法
CN108532119A (zh) * 2018-04-24 2018-09-14 武汉纺织大学 一种全自动立体伸缩式袜机转模与检测装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529058A1 (de) * 1985-08-13 1986-02-20 Zellweger Uster Ag, Uster Vorrichtung zur automatischen ueberwachung von textilen flaechengebilden, insbesondere gewebebahnen
CH663474A5 (de) * 1984-04-24 1987-12-15 Zellweger Uster Ag Verfahren und vorrichtung zur automatischen ueberwachung von gewebebahnen.
JPH08201311A (ja) * 1995-01-31 1996-08-09 Toyota Autom Loom Works Ltd 織布検反装置
WO1997027471A1 (fr) * 1996-01-26 1997-07-31 Zellweger Luwa Ag Dispositif de controle automatique de structures textiles planes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH663474A5 (de) * 1984-04-24 1987-12-15 Zellweger Uster Ag Verfahren und vorrichtung zur automatischen ueberwachung von gewebebahnen.
DE3529058A1 (de) * 1985-08-13 1986-02-20 Zellweger Uster Ag, Uster Vorrichtung zur automatischen ueberwachung von textilen flaechengebilden, insbesondere gewebebahnen
JPH08201311A (ja) * 1995-01-31 1996-08-09 Toyota Autom Loom Works Ltd 織布検反装置
WO1997027471A1 (fr) * 1996-01-26 1997-07-31 Zellweger Luwa Ag Dispositif de controle automatique de structures textiles planes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 12 26 December 1996 (1996-12-26) *

Also Published As

Publication number Publication date
EP1671111A1 (fr) 2006-06-21
CN1886647A (zh) 2006-12-27

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