WO1998041466A1 - Metodo de inspeccion de bobinas de hilatura y sistema para su puesta en practica - Google Patents
Metodo de inspeccion de bobinas de hilatura y sistema para su puesta en practica Download PDFInfo
- Publication number
- WO1998041466A1 WO1998041466A1 PCT/ES1997/000070 ES9700070W WO9841466A1 WO 1998041466 A1 WO1998041466 A1 WO 1998041466A1 ES 9700070 W ES9700070 W ES 9700070W WO 9841466 A1 WO9841466 A1 WO 9841466A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coil
- image
- sensors
- sector
- images
- Prior art date
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
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
- G01N21/8915—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined non-woven textile material
-
- 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
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
-
- 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 present invention relates to a spinning coil inspection method, as well as a system for its implementation.
- the method and system according to the invention are applied to the exploration of bobbins of yarn after its winding process on a core, materializing in one or more stations interspersed in a transport line of said bobbins, newly made towards a point of use or of storage.
- the proposed method and system are suitable for the treatment of coils of different sizes, colors and material, comprising a phase of acquisition (acquisition and illumination) of images of the surface of the coil, a second stage of treatment of said images by digitization and a final treatment by means of an analysis computer program applied to extract and evaluate the defects.
- the system according to the invention makes it possible to detect a large number of defects likely to appear in the spinning reels and in particular erasures, loops, coarse, scratches and bumps, stains on the extreme faces of the coil and on its sides, scratches, bumps and spit (bulging parts) deformations, sinking and density of the coil, color of the tube and thread of the rope, as well as the rings or spots on the extreme faces of the coil.
- the system is based on a performance, generally sequential and combined of a plurality of image acquisition sensors, several of them mobile so that they can be placed at predetermined points, before the start of each image-taking cycle of a corresponding detection phase, generally specific to each of the defects, and in which it is explored, sector by sector a whole area of the coil and the acquired images are also treated one by one. It is also provided, in each of said detection stages, an illumination specially adapted to each case whose arrangement, combined with an adequate optics, provides an effect of sufficient depth of field so that the defects present in the sector are perfectly focused on the resulting image.
- JP-A-07-134105 US.AA-5,359,408 discloses devices for inspecting spinning reels comprising image acquisition means of matrix camera type, described in the second of said background describing provisions applied to the detection of various defects with the use of various types of lighting sources such as ultraviolet, fluorescent or other rays.
- lighting sources such as ultraviolet, fluorescent or other rays.
- this background the possibility of carrying out a complete exploration of all the surfaces of the coil is not contemplated, carrying out an inspection of multiple and different defects, in some cases verified two or more times and by means of one or two stations interspersed in a transport line of freshly made coils, with the particularity of being adaptable to different sizes of the coils and regardless of the color and material characteristics of said coils.
- the method according to the invention is characterized by scanning the coil, by sequentially taking a plurality of images from different areas of said coil, under lighting conditions with a relative position of the means for acquiring particular images. , which facilitate in each case the identification-extraction of specific defects to be detected, displacing for it either the coil, and the means of image acquisition or both, to sweep, sector by sector, the entire surface of interest.
- the inspection of the extreme faces of the coil is carried out by an image acquisition by means of at least three arrangements of the data acquisition sensors and sources of different lighting, two of them lateral and a third located above the extreme faces of the coil, with the particularity that the lateral sensors are mobile, moving parallel to the axis (2) of the coil to cover defects of the end faces and on its side wall by the actuation of automatically controlled drive means.
- the system comprises one or more work stations that integrate a plurality of image acquisition sensors such as a matrix camera, with at least one image sensor above each of the end faces, with its optical axis approximately parallel to the axis (2) of the coil, but displaced 95 laterally with respect to it, and other image sensors installed in association with columns parallel to the axis (2) of the coil winding, with its optical axis oriented perpendicularly to said coil and movable along said columns in order to position themselves flush, or slightly above each of the end faces or covering the area
- image acquisition sensors such as a matrix camera
- Means are also provided in this system for rotating the coil, at a constant speed, in order to make a sequential take of a plurality of images thereof feasible, and also comprising a plurality of lighting sources associated one by one. to corresponding image sensors, and if applicable, movable with
- Fig. 1 schematically shows the arrangement of two Matrix chambers associated with lateral columns in order to cover the end face of the coil or part or all of its lateral surface.
- each column will have at least one of these
- Fig. 2 is a block diagram of the means for acquisition and treatment of the images captured by said matrix cameras, and comprising a signal processing and analysis circuit
- the following figures show one by one the arrangement of image acquisition sensors and lighting sources, depending on the defect to be detected on a coil of thread.
- Figure 3a shows a coil, indicating on its face
- Figs. 3b and 3c superior the existence of some coarse and in Figs. 3b and 3c are shown in side elevation and plan, respectively, the arrangement of the image acquisition sensor and lighting source used in this case according to the proposed system. In the case of Fig. 3c, an alternative arrangement of the lighting source has also been indicated.
- Figure 4a is a perspective view of a bobbin in which it has been highlighted on the upper portion of the winding core, protruding from the bobbin, a cape thread and Figs. 4b and 4c illustrate in a side elevation view and plan the arrangement of the image acquisition sensor and the lighting source used to detect this defect
- a coil is shown in perspective which has loops and erasures on its upper face, and in Figs. 5b and 5c have been illustrated in side elevation and plan the arrangement of the image acquisition sensor and the lighting source used according to the system
- a coil with spots on its lateral surface has been plotted in perspective, shown in Figs. 7b and 7c the provisions of the image acquisition sensor and lighting sources used for inspection of this particular defect.
- the camera used can be the same one used for inspection of the defects of Figs. 3rd
- FIG. 8a a coil with deformation of its body is shown in perspective and Figs. 8b and 8c illustrate the acquisition and image sensor arrangement and lighting source used, for
- the system comprises two lateral columns (20, 21) in which two image sensors (3, 4) are located, such as a matrix camera, intended to cover the upper and lower end faces of the coil, susceptible to displacement by means
- a functional diagram of the means for processing each of the images has been schematically represented, comprising an image acquisition block (30), an improvement block 170 of said image (31), a filtering stage (32), a binarization stage (33) of the image, a feature extraction block (34) and a final classification stage (35).
- Each of the acquired images is converted into a digital image in two colors, from which two-color image elements are extracted those geometric characteristics, particular to each
- the system comprises for the detection of the erasures, loops or other protrusions emerging from the surface of one of the ends of the
- an image sensor (3) whose optical axis is approximately parallel to the plane defined by the end face of the coil (1), and is disposed approximately flush with said face, and a elongated lighting source (9), for adaptation to different coil lengths, located in a sector between 135 to 180
- 190 applied to the detection of erasures and loops is capable of operating for the detection of coarse, scratches and bumps, on the end faces of the coil (1), whose detection stage is shown in Figs. 3a to 3c, for which the optical axis of said sensor (3) is displaced, in elevation with respect to the plane that defines the end face of the coil (1), so that in the field
- an alternative lighting source (10) is illustrated, also suitable for the detection of coarse, located within a remote area about 45 to 90 degrees, clockwise, elongated, but parallel to one of the end faces of the coil (1, the), with a shield such that
- Figs. 4a to 4c show the stage of detection of the yarn, and the color of the winding core protruding from the coil by
- FIGs. 8a to 8c an additional image detection sensor (6) has been represented which allows the complete image of the coil (1, the) to be captured with an adequate resolution, providing a focus depth of field such that the silhouette of the coil is detected by contrasting it with respect to a source of illumination (12), facing, located behind said coil, allowing the calculation of the dimensions and density of the coil, thus as the determination of sinking and deformation in the coil.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97908297A EP0934897B1 (en) | 1997-03-19 | 1997-03-19 | Method for inspecting spinning bobbins, and system for implementing such method |
DE69705532T DE69705532T2 (de) | 1997-03-19 | 1997-03-19 | Verfahren zur überprüfung von textilspulen und vorrichtung für seine durchführung |
PCT/ES1997/000070 WO1998041466A1 (es) | 1997-03-19 | 1997-03-19 | Metodo de inspeccion de bobinas de hilatura y sistema para su puesta en practica |
ES97908297T ES2160929T3 (es) | 1997-03-19 | 1997-03-19 | Metodo de inspeccion de bobinas de hilatura y sistema para su puesta en practica. |
US09/197,089 US6216432B1 (en) | 1997-03-19 | 1998-11-19 | Method for inspecting spinning bobbins and system for implementing such method |
GR20010401662T GR3036800T3 (en) | 1997-03-19 | 2001-10-04 | Method for inspecting spinning bobbins, and system for implementing such method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES1997/000070 WO1998041466A1 (es) | 1997-03-19 | 1997-03-19 | Metodo de inspeccion de bobinas de hilatura y sistema para su puesta en practica |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/197,089 Continuation US6216432B1 (en) | 1997-03-19 | 1998-11-19 | Method for inspecting spinning bobbins and system for implementing such method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998041466A1 true WO1998041466A1 (es) | 1998-09-24 |
Family
ID=8297879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES1997/000070 WO1998041466A1 (es) | 1997-03-19 | 1997-03-19 | Metodo de inspeccion de bobinas de hilatura y sistema para su puesta en practica |
Country Status (6)
Country | Link |
---|---|
US (1) | US6216432B1 (es) |
EP (1) | EP0934897B1 (es) |
DE (1) | DE69705532T2 (es) |
ES (1) | ES2160929T3 (es) |
GR (1) | GR3036800T3 (es) |
WO (1) | WO1998041466A1 (es) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000020318A1 (es) * | 1998-10-01 | 2000-04-13 | Cognivision Research, Sl | Instalacion para inspeccion optica de bobinas |
ES2277710A1 (es) * | 2004-10-06 | 2007-07-16 | Asociacion De Investigacion De La Industria Textil | Sistema para la deteccion de mezclas en conos de hilo en crudo, en linea de produccion, transporte y/o almacenamiento. |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20218115U1 (de) * | 2002-11-22 | 2004-04-01 | Autefa Automation Gmbh | Vermessungseinrichtung für Filamentspulen |
WO2006122722A1 (de) * | 2005-05-14 | 2006-11-23 | Oerlikon Textile Gmbh & Co. Kg | Verfahren und vorrichtung zur simulation eines visuellen flächenmusters eines faserproduktes sowie verfahren und vorrichtung zur herstellung eines bcf-garnes |
FR2887237B1 (fr) * | 2005-06-21 | 2007-09-21 | Rieter Textile Machinery Fr | Methode de pilotage d'un procede de transformation de fils |
DE102009058720A1 (de) * | 2009-12-17 | 2011-06-22 | Oerlikon Textile GmbH & Co. KG, 42897 | Verfahren und Vorrichtung zur Ermittlung der Orientierung einer Kreuzspulenhülse |
KR101537552B1 (ko) * | 2015-05-28 | 2015-07-17 | 금오공과대학교 산학협력단 | 4분원 이미지 처리기법을 이용한 Type-I 원사 패키지 권취불량의 자동검출 장치 및 방법 |
CN109187370B (zh) * | 2018-08-10 | 2021-04-02 | 江苏恒神股份有限公司 | 一种碳纤维颜色差异检测方法 |
EP3718939B1 (en) | 2019-04-03 | 2023-01-04 | Fitesa Nãotecidos S.A. | Device and method for detecting the presence of abnormalities in a reel |
IT201900009636A1 (it) * | 2019-06-20 | 2020-12-20 | Thema 2 S R L | Dispositivo e relativo metodo per il controllo automatico della tonalità di colore di una bobina di filo |
WO2021229344A1 (en) * | 2020-05-12 | 2021-11-18 | Thema 2 S.R.L. | Device and method for automatically checking the quality of a spool of thread for fabrics |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6186370A (ja) * | 1984-10-01 | 1986-05-01 | Toray Ind Inc | パツケ−ジ自動検査装置 |
JPS6413376A (en) * | 1987-07-06 | 1989-01-18 | Teijin Ltd | Yarn package appearance checker |
DE4211985A1 (de) * | 1991-04-09 | 1992-10-15 | Murata Machinery Ltd | Spulenpruefvorrichtung |
JPH07125925A (ja) * | 1993-11-04 | 1995-05-16 | Murata Mach Ltd | パッケージ検査装置 |
EP0693451A1 (de) * | 1994-07-11 | 1996-01-24 | B a r m a g AG | Verfahren zur optischen Vermessung der Spulenoberfläche von Fadenspulen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6262937A (ja) * | 1985-09-10 | 1987-03-19 | Murata Mach Ltd | 巻糸パツケ−ジの巻形検査装置 |
JPH02265867A (ja) * | 1989-04-04 | 1990-10-30 | Murata Mach Ltd | パッケージの異常部検出方法 |
DE4216729A1 (de) * | 1991-05-23 | 1992-11-26 | Murata Machinery Ltd | Vorrichtung zum kontrollieren von fadenspulen |
CH686779A5 (de) * | 1993-10-29 | 1996-06-28 | Luwa Ag Zellweger | Vorrichtung zur Ueberpruefung der Wickelqualitaet von Garnspulen und Verwendung der Vorrichtung an einer Spul- oder Spinnmaschine. |
US5815198A (en) * | 1996-05-31 | 1998-09-29 | Vachtsevanos; George J. | Method and apparatus for analyzing an image to detect and identify defects |
-
1997
- 1997-03-19 ES ES97908297T patent/ES2160929T3/es not_active Expired - Lifetime
- 1997-03-19 EP EP97908297A patent/EP0934897B1/en not_active Expired - Lifetime
- 1997-03-19 DE DE69705532T patent/DE69705532T2/de not_active Expired - Lifetime
- 1997-03-19 WO PCT/ES1997/000070 patent/WO1998041466A1/es active IP Right Grant
-
1998
- 1998-11-19 US US09/197,089 patent/US6216432B1/en not_active Expired - Fee Related
-
2001
- 2001-10-04 GR GR20010401662T patent/GR3036800T3/el not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6186370A (ja) * | 1984-10-01 | 1986-05-01 | Toray Ind Inc | パツケ−ジ自動検査装置 |
JPS6413376A (en) * | 1987-07-06 | 1989-01-18 | Teijin Ltd | Yarn package appearance checker |
DE4211985A1 (de) * | 1991-04-09 | 1992-10-15 | Murata Machinery Ltd | Spulenpruefvorrichtung |
JPH07125925A (ja) * | 1993-11-04 | 1995-05-16 | Murata Mach Ltd | パッケージ検査装置 |
EP0693451A1 (de) * | 1994-07-11 | 1996-01-24 | B a r m a g AG | Verfahren zur optischen Vermessung der Spulenoberfläche von Fadenspulen |
Non-Patent Citations (3)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 010, no. 261 (M - 514) 5 September 1986 (1986-09-05) * |
PATENT ABSTRACTS OF JAPAN vol. 013, no. 183 (M - 820) 28 April 1989 (1989-04-28) * |
PATENT ABSTRACTS OF JAPAN vol. 095, no. 008 29 September 1995 (1995-09-29) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000020318A1 (es) * | 1998-10-01 | 2000-04-13 | Cognivision Research, Sl | Instalacion para inspeccion optica de bobinas |
ES2277710A1 (es) * | 2004-10-06 | 2007-07-16 | Asociacion De Investigacion De La Industria Textil | Sistema para la deteccion de mezclas en conos de hilo en crudo, en linea de produccion, transporte y/o almacenamiento. |
Also Published As
Publication number | Publication date |
---|---|
EP0934897A1 (en) | 1999-08-11 |
DE69705532T2 (de) | 2002-05-16 |
EP0934897B1 (en) | 2001-07-04 |
US6216432B1 (en) | 2001-04-17 |
ES2160929T3 (es) | 2001-11-16 |
DE69705532D1 (de) | 2001-08-09 |
GR3036800T3 (en) | 2002-01-31 |
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