EP0824607A1 - Verfahren und vorrichtung zum erkennen und ausscheiden von fremdstoffen in fasermaterial - Google Patents
Verfahren und vorrichtung zum erkennen und ausscheiden von fremdstoffen in fasermaterialInfo
- Publication number
- EP0824607A1 EP0824607A1 EP96903866A EP96903866A EP0824607A1 EP 0824607 A1 EP0824607 A1 EP 0824607A1 EP 96903866 A EP96903866 A EP 96903866A EP 96903866 A EP96903866 A EP 96903866A EP 0824607 A1 EP0824607 A1 EP 0824607A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- presentation channel
- presentation
- fiber material
- channel
- sensor
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
- B07C5/366—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means during free fall of the articles
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B3/00—Mechanical removal of impurities from animal fibres
- D01B3/02—De-burring machines or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B3/00—Mechanical removal of impurities from animal fibres
- D01B3/02—De-burring machines or apparatus
- D01B3/025—Removing pieces of metal
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
- D01G31/003—Detection and removal of impurities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
- B07C2501/0036—Sorting out metallic particles
Definitions
- the invention relates to a method for recognizing and eliminating foreign substances in fiber material according to the preamble of claim 1, and a device for expediently carrying out such a method according to the preamble of claim 7.
- Such methods and devices are described in primarily used in spinning mills to clean raw cotton.
- Raw cotton is often with foreign substances such as Cords, jute scraps or other fabric scraps, plastic parts, etc. are interspersed, which are processed into yarn in the spinning process like the cotton fibers themselves and which can only be removed again with considerable effort. It is therefore endeavored to remove these foreign substances as completely as possible in the blow room.
- the cleaning of fiber material can also be carried out in other processing processes, e.g. play a role in the processing of mineral, synthetic or animal fibers.
- Another object of the invention is to provide a device of the type mentioned at the outset, which can be installed in a space-saving manner in a production line and which, depending on the application, allows the use of different detection methods. According to the invention, this object is achieved with a method which has the features in claim 1. In terms of the device, the object is achieved with a device having the features of claim 7.
- the fiber material is particularly advantageously guided past the sensor field on a presentation path which is inclined to the vertical by 0 ° to 50 °. In certain cases, however, a certain curvature or another inclination to the vertical would also be conceivable.
- the flow in the presentation channel can be achieved in different ways. It is conceivable to blow air in upper end of the presentation channel with the help of a ventilator. However, a negative pressure can also be maintained after the presentation channel, for example by connecting the pressure side of a fan to the lower end of the presentation channel via a suction nozzle. A negative pressure is generated according to the Venturi principle. However, the negative pressure can also be generated by a fan which is arranged on the transport line for the further transport of the fibers, air being additionally drawn in after the presentation duct.
- the continuous flow in the presentation channel is preferably maintained cumulatively by various means in order to achieve the most uniform possible speed. By means of fixed or adjustable throttles, a uniform air speed can be maintained over the entire channel cross section. It is also conceivable to regulate the throttles or the fans used mechanically or electronically.
- the flow can be diverted under the presentation channel, the contaminated portion being excreted in the area of change of direction or immediately thereafter.
- the inertia of the foreign substances is optimally used for a more targeted excretion. Elimination is also possible before the deflection in the vertical area.
- a distribution device is particularly advantageously arranged above the presentation channel, for the uniform metering of the fiber material into the presentation channel. It is conceivable to arrange a condenser directly above the presentation channel, which may feed the channel via a cellular wheel or the like. However, it is also possible to arrange a filling shaft above the presentation channel, in which a certain amount of fibers is always kept in stock. Dosing takes place from the filling shaft via discharge or opening rollers. Optimal speed of the fiber materials can largely be achieved by the tangential speed of the cell wheel or the opening rollers. The top speed is thus defined by mechanical and pneumatic means in combination.
- the sensor arrangement has an electronic line scan camera with color sensors, with which the entire width of the presentation channel can be detected.
- the sensor field can be kept very small, which enables space-saving accommodation.
- the linear scanning also enables easier programming and control of the entire system and shorter reaction times.
- line scan cameras also enable the fiber material in the presentation channel to be illuminated in incident light and in transmitted light to avoid shadow effects.
- the illumination output can be reduced and, in contrast to matrix cameras, disruptive reflections can easily be avoided.
- the CCD cameras are programmed in such a way that they are adjusted to the color tone, brightness and saturation of the cotton fibers within a certain tolerance range. Any change in the color spectrum outside the tolerance range is registered as a deviation and can generate a control signal after appropriate evaluation. Foreign substances whose color lies within the tolerance range cannot be recognized in this way.
- the sensor arrangement can also have sensors that react to other parameters, such as different densities, different substances, etc.
- sensors for example, X-rays, ultrasonic waves, electromagnetic fields, etc. can be used.
- the sensor arrangement additionally has at least one sensor which operates in the ultraviolet or infrared or near infrared range.
- sensors can also be used to determine foreign bodies that are approximately have the same color as the cotton fibers, but are made of a different fabric.
- the foreign substances can be eliminated in different ways. It is conceivable e.g. the use of a nozzle strip for blowing out impurities from the flow. However, mechanical deflection flaps could also be used, as are also known for separating metal parts.
- a particularly advantageous construction of the device results if it has at least one feed module, one sensor module and one separation module, it being possible for further modules to be installed between these modules.
- the modular construction enables easy assembly and maintenance of the device.
- other components can also be installed later, e.g. additional sensors etc.
- FIG. 1 shows a cross section through a device according to the invention in a highly schematic representation
- FIG. 3 shows a cross section through an alternative exemplary embodiment with an inclined presentation channel.
- the device shown in FIGS. 1 and 2 has a housing 22 in which a vertical presentation channel 1 with a rectangular cross section is arranged.
- the two parallel side walls 7, 7 'of the presentation channel are designed as transparent panes, but could possibly also have a filter effect for certain light wavelengths.
- Lighting fixtures 3 are arranged on both sides of the presentation channel.
- the sensor arrangement consists of the two CCD cameras 2, 2 ', which, however, act indirectly on the presentation channel via the two mirrors 8, 8' to save space.
- the optical planes 27, 27 ' are arranged slightly offset from one another. Viewed from the observation side, behind the presentation channel there is a background strip 6 each in the row plane which corresponds to the set parameters for the fibers, so that the camera does not respond even when the presentation channel is empty.
- An intermediate module 26 is arranged above the actual presentation channel 1, the channel cross section of which, however, is the same as that of the presentation channel.
- This intermediate module serves on the one hand as a drop section and on the other hand could also be used with other sensors such as Metal detectors or infrared sensors can be equipped.
- the air flow in the presentation channel is generated by a fan 4, the pressure side of which is connected to an air inlet module 5.
- This module could be omitted if the flow is generated only in a different way.
- the flow can be supported by a fan, not shown here, which is arranged after the presentation channel in the transport line and which primarily serves to transport the material. Additional air is drawn in via an air inlet duct 16. The suction effect generated in this way obviously causes a negative pressure in the presentation channel.
- the device is loaded with fibers via a Condenser 9, to which a flake feed 10 leads.
- Condensers are already known to the person skilled in the art. They have a rotating sieve drum 12 on which the flakes are condensed out of the conveyed air. The exhaust air, which in some cases still contains dust, is discharged via the exhaust connection 11. The flakes fall off again from the outside of the sieve drum 12 due to the action of the centrifugal force and are then metered into the shaft through a rotary valve 13.
- a blowing nozzle strip 17 is arranged, specifically above an ejection opening 18, which leads to a collecting container 20.
- a rotating cell wheel 19 can be arranged in the ejection opening 18 in order to avoid backflow.
- the blowing nozzle strip 17 is activated, the cellular wheel 19 is also set in rotation.
- the ejection opening and the blowing nozzle strip could, however, also be arranged in the vertical shaft area directly below the presentation channel. Instead of the cellular wheel, a flap that opens briefly could be provided. If the pressure conditions permit, the discharge opening does not have to be closed at all.
- the cleaned fibers are removed via the transport pipe 21 and thus reach the next machine.
- the device is constructed in a modular construction and contains a feed module 23, a sensor module 24 and a separation module 25. These modules form the basic equipment. They can be exchanged or supplemented.
- the partially contaminated cotton fibers thus first enter the condenser 9 from the direction of arrow a, then fall down against the presentation channel 1, bringing them to the desired conveying speed.
- the fibers then pass the sensor in an optimal presentation form. field, whereby different foreign objects are detected in color.
- the blowing nozzle strip is activated with compressed air when there is a signal on the sensor arrangement, precisely matched to the remaining drop distance.
- the blowing nozzle strip can operate in a linear or point-like manner, so that only a certain segment can be separated from the width of the delivery flow. Of course, this requires a corresponding evaluation of the sensor signals on the sensor arrangement.
- Figure 3 shows an alternative embodiment in which the presentation channel 1 is inclined at an angle of slightly less than 45 ° to the vertical. Otherwise, the sensor module 24 is constructed approximately the same as in the exemplary embodiment according to FIG. 1.
- the fibers from the condenser 9 are also metered in via a cellular wheel 13.
- the air 4 is added at an angle to the conveying direction of the fan 4 here Flakes.
- the separation of the foreign bodies in the separation module 25 is also solved somewhat differently.
- the ejection opening 18 is arranged vertically opposite the blowing nozzle strip 17 and leads directly to the collecting container 20 without a cellular wheel or the like.
- the flakes are passed on to the transport tube 21 via an open funnel 14 , whereby room air is sucked in at the entrance of the funnel.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Treatment Of Fiber Materials (AREA)
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1376/95 | 1995-05-12 | ||
CH137695 | 1995-05-12 | ||
CH137695 | 1995-05-12 | ||
PCT/CH1996/000082 WO1996035831A1 (de) | 1995-05-12 | 1996-03-07 | Verfahren und vorrichtung zum erkennen und ausscheiden von fremdstoffen in fasermaterial |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0824607A1 true EP0824607A1 (de) | 1998-02-25 |
EP0824607B1 EP0824607B1 (de) | 2000-06-07 |
EP0824607B2 EP0824607B2 (de) | 2005-07-27 |
Family
ID=4208984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96903866A Expired - Lifetime EP0824607B2 (de) | 1995-05-12 | 1996-03-07 | Verfahren und vorrichtung zum erkennen und ausscheiden von fremdstoffen in fasermaterial |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0824607B2 (de) |
KR (1) | KR19990008396A (de) |
AT (1) | ATE193736T1 (de) |
BR (1) | BR9608125A (de) |
DE (1) | DE59605408D1 (de) |
WO (1) | WO1996035831A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6421883B1 (en) | 1999-11-24 | 2002-07-23 | Maschinenfabrik Rieter Ag | Selective cleaning line |
US7335847B2 (en) | 2004-04-27 | 2008-02-26 | Hauni Primary Gmbh | Method and apparatus for foreign-body separation from a material flow |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29604552U1 (de) * | 1995-05-05 | 1996-05-23 | Trützschler GmbH & Co KG, 41199 Mönchengladbach | Vorrichtung in einer Spinnereivorbereitungseinrichtung (Putzerei) zum Erkennen und Ausscheiden von Fremdstoffen, z.B. Gewebestücke, Bänder, Schnüre, Folienstücke, in bzw. aus Fasergut |
DE19716792A1 (de) * | 1997-04-22 | 1998-10-29 | Rieter Ag Maschf | Spinnereivorbereitungseinrichtung |
EP0877104A1 (de) * | 1997-05-07 | 1998-11-11 | Jossi Holding AG | Vorrichtung zum Behandeln eines Fasergutstroms in einer Faseraufbereitungsanlage |
EP0879905A1 (de) * | 1997-05-20 | 1998-11-25 | Jossi Holding AG | Verfahren und Vorrichtung zum Erkennen und Ausscheiden von Fremdstoffen in Fasermaterial |
IT1306941B1 (it) * | 1998-02-19 | 2001-10-11 | Truetzschler & Co | Dispositivo nella preparazione alla filatura,per la separazione dicorpi estranei su un cilindro in rapida rotazione per l'apertura di |
DE19806892A1 (de) * | 1998-02-19 | 1999-08-26 | Truetzschler Gmbh & Co Kg | Vorrichtung in der Spinnereivorbereitung zum Abscheiden von Fremdstoffen an einer schnellaufenden Walze zum Öffnen von Fasermaterial, z. B. Baumwolle u. dgl. |
DE59808078D1 (de) * | 1998-09-07 | 2003-05-28 | Jossi Holding Ag Islikon | Verfahren und Vorrichtung zum Ausscheiden von Fremdstoffen in Fasermaterial, insbesondere in Rohbaumwolle |
EP0987355A1 (de) * | 1998-09-14 | 2000-03-22 | Jossi Holding AG | Vorrichtung und Verfahren zum Erkennen und Ausscheiden von Fremdmaterial |
EP1233086A1 (de) * | 2001-02-16 | 2002-08-21 | Jossi Holding AG | Verfahren und Vorrichtung zum Erkennen und Ausscheiden von Fremdstoffen in Fasermaterial, insbesondere in Rohbaumwolle |
EP1959039A3 (de) | 2001-02-16 | 2009-05-27 | Jossi Holding AG | Abscheidevorrichtung für Fremdstoffe |
DE10121421A1 (de) * | 2001-04-27 | 2002-10-31 | Rieter Ag Maschf | Verfahren und Vorrichtung zum Erkennen und Ausschneiden von Fremdstoffen in Fasermaterial |
EP1300493A1 (de) * | 2001-10-05 | 2003-04-09 | Jossi Holding AG | Vorrichtung zum Erkennen und Ausscheiden von Fremdstoffen an einem durch eine Karde gebildeten Faservlies |
DE102004020777A1 (de) * | 2004-04-27 | 2005-11-24 | Hauni Primary Gmbh | Verfahren und Einrichtung zur Fremdkörperabscheidung aus einem Materialstrom |
DE102008034385A1 (de) * | 2008-07-23 | 2010-01-28 | TRüTZSCHLER GMBH & CO. KG | Vorrichtung in der Spinnereivorbereitung, Ginnerei o. dgl. zum Erkennen von Fremdstoffen in oder zwischen Fasermaterial, insbesondere Baumwolle |
CH699123B1 (de) * | 2008-07-03 | 2013-07-15 | Truetzschler Gmbh & Co Kg | Vorrichtung zur Verwendung in der Spinnereivorbereitung oder Ginnerei zum Erkennen von Fremdteilen aus Kunststoff. |
CN101979729B (zh) * | 2010-08-31 | 2012-07-04 | 洛阳方智测控股份有限公司 | 籽棉异纤清除机 |
DE102010055523A1 (de) * | 2010-12-22 | 2012-06-28 | Trützschler GmbH & Co Kommanditgesellschaft | Vorrichtung in der Spinnereivorbereitung zum Erkennen von Fremdteilen aus Kunststoff, wie Prolypropylenbändchen, -gewebe und -folien u. dgl. |
EP2728042B1 (de) * | 2012-11-03 | 2015-10-14 | Reinhold Thewes | Verfahren zur Vereinzelung von Naturfasern |
DE102014009690A1 (de) * | 2014-07-02 | 2016-01-07 | TRüTZSCHLER GMBH & CO. KG | Vorrichtung in der Spinnereivorbereitung, Ginnerei o. dgl. zum Erkennen und Ausscheiden von Fremdstoffen in oder zwischen Fasermaterial, insbesondere Baumwolle |
DE102017121359A1 (de) * | 2017-09-14 | 2019-03-14 | TRüTZSCHLER GMBH & CO. KG | Vorrichtung zum Erkennen und Ausscheiden von Fremdteilen in oder zwischen Fasermaterial |
DE102017121838A1 (de) | 2017-09-20 | 2019-03-21 | Helms Technologie Gmbh | Optische Verlesevorrichtung |
JP6275911B1 (ja) * | 2017-10-02 | 2018-02-07 | 株式会社服部製作所 | 色彩選別機 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT394453B (de) * | 1987-03-25 | 1992-04-10 | Oesterr Forsch Seibersdorf | Verfahren und vorrichtung zum erkennen und entfernen von fremdstoffen aus rohbaumwolle |
JP2672358B2 (ja) † | 1987-08-28 | 1997-11-05 | コモンウェルス・サイエンティフィック・アンド・インダストリアル・リサーチ・オーガニゼイション | 気送材料選別装置 |
EP0369786A1 (de) † | 1988-11-16 | 1990-05-23 | Unisearch Limited | Selbstblockierendes Reibungsgelenk für eine Schiene des ganzen Beines |
JPH0735616B2 (ja) * | 1990-02-26 | 1995-04-19 | フジディバイス株式会社 | 異物除去装置 |
DE9017759U1 (de) * | 1990-09-17 | 1992-01-16 | Trützschler GmbH & Co KG, 4050 Mönchengladbach | Vorrichtung zum Abscheiden metallischer Verunreinigungen aus einer Fasertransportstrecke in der Spinnereivorbereitung |
CH685503A5 (de) * | 1992-08-24 | 1995-07-31 | Jossi Hans Praezisionsmechanik | Verfahren und Vorrichtung zum Ausscheiden von Metallteilen aus einem Materialstrom. |
DE4340173A1 (de) * | 1993-11-25 | 1995-06-01 | Hergeth Hubert A | Verfahren zum Erkennen und Ausschleusen von andersfarbigen Fremdteilen in Faserverarbeitungslinien |
-
1996
- 1996-03-07 DE DE59605408T patent/DE59605408D1/de not_active Expired - Lifetime
- 1996-03-07 KR KR1019970707923A patent/KR19990008396A/ko not_active Application Discontinuation
- 1996-03-07 BR BR9608125A patent/BR9608125A/pt not_active Application Discontinuation
- 1996-03-07 WO PCT/CH1996/000082 patent/WO1996035831A1/de not_active Application Discontinuation
- 1996-03-07 AT AT96903866T patent/ATE193736T1/de not_active IP Right Cessation
- 1996-03-07 EP EP96903866A patent/EP0824607B2/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9635831A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6421883B1 (en) | 1999-11-24 | 2002-07-23 | Maschinenfabrik Rieter Ag | Selective cleaning line |
US7335847B2 (en) | 2004-04-27 | 2008-02-26 | Hauni Primary Gmbh | Method and apparatus for foreign-body separation from a material flow |
Also Published As
Publication number | Publication date |
---|---|
ATE193736T1 (de) | 2000-06-15 |
KR19990008396A (ko) | 1999-01-25 |
DE59605408D1 (de) | 2000-07-13 |
EP0824607B2 (de) | 2005-07-27 |
WO1996035831A1 (de) | 1996-11-14 |
BR9608125A (pt) | 1999-02-09 |
EP0824607B1 (de) | 2000-06-07 |
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