EP3168335B1 - Vorrichtung zur messung der höhe eines drahts eines wanderdeckels einer karde - Google Patents

Vorrichtung zur messung der höhe eines drahts eines wanderdeckels einer karde Download PDF

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Publication number
EP3168335B1
EP3168335B1 EP16198056.0A EP16198056A EP3168335B1 EP 3168335 B1 EP3168335 B1 EP 3168335B1 EP 16198056 A EP16198056 A EP 16198056A EP 3168335 B1 EP3168335 B1 EP 3168335B1
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EP
European Patent Office
Prior art keywords
carriage
guide track
grinding
height
flat
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Active
Application number
EP16198056.0A
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English (en)
French (fr)
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EP3168335A1 (de
Inventor
Mehul Kunjbihari TRIVEDI
Ashok Kumar PAL
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Indian Card Clothing Co Ltd
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Indian Card Clothing Co Ltd
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Publication of EP3168335A1 publication Critical patent/EP3168335A1/de
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/28—Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/16—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli
    • B24B19/18—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli for grinding carding equipment, e.g. card-clothings

Definitions

  • the present invention relates to a device for measuring a single as well as multiple number of flat tops fitted on flat bar in working position of a carding machine in particular, but not exclusively of clothing of flat tops of a revolving flat card in a textile machine.
  • the measured height data thus collected is analysed on a computer and is used for undertaking Resharpening of the complete set of flat tops in situ.
  • this device also can be used after replacing the height measurement device with cleaning, brushing wheel and a resharpening wheel to undertake cleaning and brushing of the flat tops as well as resharpening of the flat tops.
  • this invention relates to a device for measuring height of wire fitted on revolving flat bar on card of a carding machine
  • Spinning process of yarn involves cleaning and removing of impurities present in the fibre, aligning i.e. parallelizing of fibres and then spinning of fibre strands in a yarn.
  • Various machineries are used in the spinning process to perform all these operations.
  • the cleaning and aligning of fibres are mainly done on the first two process machineries i.e. Blow room and carding machines.
  • Carding process involves extensive cleaning of impurities in the fibre mixing and separation of fibres to individual level.
  • To facilitate separation of fibres to almost individual level the rollers and bars in the carding machine are clothed with clothing which comprises of wire teeth of various size and shapes according to requirements. These rollers and bars also work at a very close proximity and with different surface speed.
  • a prior art carding machine is illustrated in Fig 1 .
  • the main working roller and bars are mentioned in the figure 1A .
  • the carding machine mainly has three rollers known as Licker in 1, Main Cylinder 2, Doffer 4 shown in fig 1A .
  • the flat bars 3a or 3c are clothed with Flat top 3b or 3d shown in fig 1B on enlarged scale and known as "revolving flat".
  • the flat tops comprises of a flexible foundation on which wire staples of different type of cross section i.e. elliptical, ovoid or flat are pressed in.
  • the end of the wire projecting from flexible foundation is bent in the intended direction so that it is opposite to that on main cylinder of motion of the revolving flats.
  • the tip of the wire is ground on the top as well as sides to create a sharp wire points.
  • These flat tops are mounted on the flat bars known as "bare flats" 3a.
  • the revolving flats covered with fine wire points of flat tops It is also possible that the Flat bar 3c is clipped with metallic top i.e. saw tooth wire instead of flexible wire 3d.
  • the relative direction of wire points on different components particularly rollers are provided on the basis of the action between two set of wire points. As shown in Fig 1A the direction of wire points in licker in and cylinder are same. Hence it performs stripping action.
  • the wire points in main cylinder and flat tops are opposite. Hence it performs carding action.
  • the cylinder should rotate at high speed i.e. with a high surface speed while the revolving flats move at a lower surface speed.
  • the transfer of fibre from Licker in to cylinder depends on various factors e.g. the angle of wire points, relative surface speed of the two components and most importantly the gap/gauge between the two clothed surfaces.
  • the evenness of the gap between cylinder and licker in 6, between cylinder and flat tops 5 and between cylinder and doffer 7 are very crucial and important to achieve good and consistent performance from a carding machine.
  • GB 2447352 A discloses an apparatus on a carding machine for grinding a fibre processing clothing on a roller or a card flat.
  • the grinding equipment includes at least one grinding element and a feeding-in device to position the grinding element against the clothing.
  • CN 2595822Y discloses a wrapped mill cover plate card clothing machine with a root difference measuring and controlling device, which comprises a main machine frame, cover plate card clothing measuring brackets, an abrasive machining and positioning platform, a detection device for needle surface height, a feeding detection device of an abrasive grinding wheel, the abrasive grinding wheel, a transmission mechanism of the abrasive grinding wheel, a control disc and a control system.
  • EP 2781632 A1 discloses a device for processing of revolving flats.
  • the device has two cutting processing means which are seen in the direction of the longitudinal axis outside the clamping means and that for receiving the clamping means in the device a sliding guide is provided in it.
  • the processing means are milling cutters which are designed as form cutters and are arranged with their axis orthogonal to the longitudinal axis of the device and thus also orthogonal to a longitudinal extension of the traveling lid.
  • WO 2009/036584A1 disclosing a grinding device for a clothing of a traveling cover with a drive set in motion by abrasive elements equipped carrier and with a feed device which a change in the distance between the grinding elements and the clothing, characterized in that there are means for measuring a grinding performance during a grinding operation.
  • a further reference is DE 269638 C teaching a device for adjusting sanding rollers and polishing brushes mechanically by means of a sensor that can be moved along an axis.
  • One of main objects of this invention is to mitigate above mentioned drawbacks.
  • Further object is to measure the height of the wires and accordingly grinding stone is adjusted and life of wires of flat is more compared to earlier.
  • Another object is stoppage time reduced and evenness of wires is uniformly maintained.
  • Another object is measuring, cleaning and grinding is done simultaneously to reduce the down/stoppage time
  • a device for measuring height of a revolving flat wire/top on card of a carding machine according to claim 1.
  • the device comprises of a support mechanism as explained in Fig 2 .
  • Two supporting brackets are fitted on right and left side bend of a carding machine.
  • a guide track is fitted which is parallel to the revolving flat of carding machine.
  • the guide track supports a carriage which is moved along the length of flat tops fitted on the flat bar 3A.
  • the linear drive mechanism allows the carriage to move at controlled speed, which can be manually adjusted as desired.
  • the movement of the carriage can have differential speed while it moves from one end to other and returns back.
  • the extent of travel of the carriage 10 can be adjusted by sensors 12 & 12a fitted on both end of the guide track.
  • the carriage supports a dial indicator 9.
  • the dial indicator is preferably a digital dial indicator.
  • the Dial indicator has a support bracket on which dial indicator is fitted. Reading in the dial is shown according to the movement of anvil which is fitted on the bottom portion of bracket.
  • the anvil has a smooth hardened flat surface which rests on the flat tops wire points. During working of this device the anvil presses on the tops wire point.
  • the whole assembly of the track along with the carriage and the dial indicator can be moved in up or down position by means of a precision slide 13 shown in Fig 2 .
  • the slide has a screw along with dialed knob 14. By rotating the knob in clockwise or anticlockwise the whole guide track can be brought in up or down position.
  • the Guide track can be precisely adjusted on the revolving flat top by adjusting the slide. Once the height reading at both ends of the flat tops are adjusted to same value, the setting button on the dial can be pressed to make the reading zero.
  • the carriage starts moving from one end of the revolving flat to the other end measuring the height of the flat bar mounted with tops. On reaching the end position of the flat tops the sensor 12 gets activated.
  • Arrangements are made so that data is collected during movement of the dial only in one direction at a specified time gap. Hence it is assumed that it takes 10 second for the dial to travel from one end of flat top to the other end, the arrangements in the processor can be made so that the dial reading data can be collected every 2 seconds once the dial starts moving from right to left direction. Hence the tops height data at five distinctive places of all flat tops can be collected.
  • the data gets logged in the processor.
  • the whole set of data from the processor gets transmitted by WIFI router Fig 4 to any laptop or computer for its recording, analysis and storage.(The inter connectivity of the components is required to be mentioned with corresponding drawing)
  • the data can be analysed to find lowest and highest reading of the whole tops set.
  • the direct data logging is also possible from Bluetooth enabled dials, where the data is transmitted without any cable directly to the computer through specially designed software.
  • the carriage 10 in addition to the dial can have provision of a motor holding bracket where motor is mounted.
  • the carriage 10 is provided with the motor holding bracket 21 where the motor 22 is mounted.
  • Further grinding wheel 23 is driven by the motor via a shaft.
  • This grinding wheel can be also replaced with a cleaning Brush when cleaning of wires of flat bar is necessary.
  • the precision entry of data in the system is carried out for feeding of analyzed data to a system where it is provided with a cam 26 which can be rotated by a servo controlled motor or a stepper motor drive system.
  • the exact amount of grinding cut can be provided by means of rotation of the cam controlled by the processor Further grinding and cleaning are done simultaneously with measuring of wires of flat bars.
  • the guide track 8 is supported on slide 31 fitted on guide 33 and Z bracket 34 arrangement shown in fig 11 is provided on each of supporting brackets 29 at both sides.
  • Each slide 31 on the bracket is driven by servo motor or stepper motor through belt and ball screw arrangement.
  • the input to the servo motor or steeper motor is provided by individual controller 30 as shown in fig 10 .
  • the guide track 8 with carriage 10 is provided with a provision for assembling of dial and motor holding bracket with motor.
  • the device of the present invention comprises a support mechanism as explained in Fig 2 .
  • the supporting brackets 15 & 16 are fitted on RH and LH side bend of a carding machine.
  • a guide track 8 is fitted which is parallel to the revolving flat 3.
  • the guide track 8 supports a carriage 10 which can move along the length of flat tops 3b shown in fig 1B fitted on the flat bar 3A shown in fig 1B .
  • the linear drive mechanism allows the carriage 10 to move at controlled speed, which can be manually adjusted as desired.
  • the movement of the carriage 10 can have differential speed while it moves from one end to other and returns back.
  • the extent of travel of the carriage 10 can be adjusted by sensors 12 & 12a fitted on both end of the guide track.
  • the carriage supports a dial indicator 9.
  • the dial indicator preferably a digital dial indicator in detailed is shown in Fig3 .
  • the Dial indicator have a support bracket or stem 9 a, a dial which shows the readings 9b, a bottom stem 9c supporting an anvil 9d.
  • the anvil has a smooth hardened flat face which rests on the flat tops wire points. During working of this device the anvil presses on the tops wire point.
  • the whole assembly of the track8 along with the carriage and the dial indicator can be moved in up or down position by means of a precision slide 13 shown in Fig 2 .
  • the slide has a screw along with dialed knob 14. By rotating the knob in clockwise or anticlockwise the whole guide track can be brought in up or down position.
  • the Guide track can be precisely adjusted on the revolving flat top by adjusting the slide.
  • the setting button on the dial can be pressed to make the reading zero.
  • the carriage on the guide track On receiving the signal from sensor the carriage on the guide track starts movement along the length of the revolving flat.
  • the dial starts measuring the readings at five predetermined points.
  • five sensors 35 in Fig 10 are placed at five predetermined points. While the dial passes over the points, it sends signal through control panel to capture reading of height on that particular point. Hence the top height data at five distinctive places can be collected...
  • the Tops height data are transmitted through the data cable to a data processor with data logging software and PLC System. Arrangements are made so that data is collected during movement of the dial only in one direction at a specified time gap. Hence say it takes 10 second for the dial to travel from one end of flat top to the other end, the arrangements in the processor can be made so that the dial reading data can be collected every 2 seconds once the dial starts moving from right to left direction. Hence the tops height data at five distinctive places of all flat tops can be collected. In another arrangement five sensors are placed at five predetermined points as shown in fig 10 .
  • the dial While the dial passes over the sensors at these points, it sends signal through control panel to capture reading of height on that particular point. Hence the top height data at five distinctive places is collected.
  • the data gets logged in the processor.
  • the whole set of data from the processor gets transmitted by WIFI router 19 Fig 4 to any laptop or computer 20 for its recording, analysis and storage.
  • the data can be analysed to find lowest and highest reading of the whole tops set. Based on the data collected decision can be taken on selection of the first top from which the grinding operation to be started and the exact amount of grinding cut to be given.
  • the direct data logging is also possible from Bluetooth enabled dials, where the data is transmitted without any cable directly to the computer through specially designed software.
  • Fig 5 In another embodiment in detailed is shown in Fig 5 where the carriage 10 in addition to the dial can have provision of a motor holding bracket where motor is mounted.
  • Fig 6 the carriage 10 have the motor holding bracket 21 with the motor 22.in enlarged scale.
  • Fig 7 the motor is fitted with a grinding wheel 23.
  • This grinding wheel can be also replaced with a cleaning Brush.
  • the precision feeding system for feeding of analyzed data as shown in fig8 can have a cam 26 which can be rotated by a servo controlled motor or a stepper motor drive system. The exact amount of grinding cut can be provided by means of rotation of the cam controlled by the processor.
  • the precession feeding system as shown in FIG 8 comprises the slide 13 mounted a plate 28 which extends outside. These plates have rollers 27 which are in point contact with a cam 26. The arrangements are made in such a way that when the cam 26 is rotated the roller 27 will move the whole plate with slide in upward or downward direction. If the offset of the cam is 2.5mm, then for 90-degree rotation of the cam the plate with slide on which the guiding track with carriage is fitted, can move 2.5mm in up or downward direction. Once the total grinding cut and the depth of cut is fed in the processor shown in FIG 8 , the servo / stepper motor rotates the cam suitably to start the grinding process.
  • the servo / stepper motor After one complete revolution of the revolving flat as sensed by the sensor 17 in FIG 4 , the servo / stepper motor once again provides the next grinding feed. Once the total grinding cut is provided, the servo / stepper motor retract back the track with carriage by rotating the cam in reverse direction to original position.
  • FIG 11 the precision feeding system is shown in FIG 11 which comprises the brackets 29 on which guide 33 is fitted.
  • Slide 31 moves on guide 33 by means of a ball screw arrangement driven by a belt drive through a servo or stepper motor 32.
  • Input to the servo/ stepper motor is provided by controller 30. Input to the controller can be given manually or through the main Electronic Controller.
  • Guide track 8 is fitted on the slide 31 by means of "Z" brackets 34.
  • the Guide track 8 with carriage 10 have provision for assembling of the digital dial as shown in FIG 9 and motor holding bracket with motor and grinding wheel is shown in FIG 10 .
  • the guide track 8 is to be set parallel to the tops.
  • the measurement is taken on both ends of the top. Based on the readings on both ends, required amount of adjustment is to be fed in the controller 30 to make dial reading equal at both ends.
  • the calibrated rotation of motor shaft moves the slide 31 through a belt drive and ball screw arrangement. The slide moves the desired distance over the Guide 33.
  • the servo / stepper motor moves the slide 31 suitably to start the grinding process.
  • the servo / stepper motor After one complete revolution of the revolving flat as sensed by the sensor 17 as shown in FIG 4 , the servo / stepper motor once again provides the next grinding feed. Once the total grinding cut is completed, the servo / stepper motor retract back the track with carriage by moving the slide in reverse direction to original position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (11)

  1. Eine Vorrichtung zur Messung in situ der Höhe einer drehenden, flachen Oberseite mit Drahtseillitze auf der Karde einer Kardiermaschine, wobei die Vorrichtung Folgendes umfasst:
    einen Haltemechanismus mit zwei Stützauslegern (15, 16) die an der Kardiermaschine zu befestigen sind und auf denen eine Führungsschiene (8) befestigt ist;
    Diese Führungsschiene (8) kann im Wesentlichen parallel zu der sich drehenden flachen Oberseite mit der Drahtseillitze der Kardiermaschine angeordnet werden, wo die Führungsschiene (8) eine Beförderungsbaugruppe trägt, die entlang der Länge der Führungsschiene (8) bewegbar ist, um sich entlang der Länge der drehenden, flachen Oberseiten zu bewegen, die auf einer Flachstange (3A) angebracht sind wenn sie auf der Kardiermaschine befestigt sind;
    wobei diese Beförderungsbaugruppe einen Schlitten (10), eine Messuhr (9) in einer betrieblichen Kupplung mit diesem Schlitten (10) umfasst;
    wobei diese Messuhr (9) einen Stützausleger oder eine Spindel (9c) umfasst, die/der betriebsmäßig mit einem Amboss (9d) verbunden ist, so dass die Messuhr (9) angepasst ist, um die Ablesungen zu messen, die der senkrechten Bewegung des Ambosses (9d) entsprechen, um ihn auf den oberen Drahtspitzen der drehenden flachen Oberseite aufstützen zu lassen; die senkrechte Bewegung entspricht einer so genannten Höhe;
    wobei die Führungsschiene (8) sich zusammen mit der Beförderungsbaugruppe mittels einer Präzisionsschiene (13), die mit einer Nocke (26) verbunden ist, die von einem elektronisch gesteuerten Motor (25) angetrieben wird, in Auf- und Abwärtsrichtung bewegen kann; wobei die Vorrichtung, wenn sie an der Kardiermaschine angebracht ist, so betrieben wird, dass, wenn die Höhe an beiden Enden der drehenden flachen Oberseiten durch die Präzisionsschiene (13) auf den gleichen Wert eingestellt ist, die Messuhr (9) auf null gesetzt wird; wobei sich der Schlitten von einem Ende zu den anderen Enden der drehenden flachen Oberseiten bewegt und wobei die Höhe der auf ihrer jeweiligen Flachstange angebrachten drehenden flachen Oberseiten gemessen wird und die Höhenmessungen an den vorbestimmten Punkten entlang der Höhe der drehenden flachen Oberseite in der Uhr aufgezeichnet werden;
    wobei die Daten der Höhenmessungen der drehenden flachen Oberseiten, die an diesen vorbestimmten Punkten gesammelt werden, zu einem Prozessor übertragen werden, der die gesamten, von allen flachen Oberseiten gesammelten Daten, zur Aufzeichnung, Analyse und Speicherung in einem Computer (20) verarbeitet und wobei aufgrund der Daten eine notwendige Mengen des Abschliffs der drehenden flachen Oberseiten bestimmt wird und wobei die bestimmte Menge des Abschliffs einem elektronisch gesteuerten Motor (22) einesPräzisionszuführungssystems zur Zuführung von Analysedaten übertragen wird, die eine genaue Höheneinstellung einer Schleifscheibe oder einer Reinigungs- und Bürstscheibe ermöglichen.
  2. Vorrichtung nach Anspruch 1, wobei diese Präzisionsschiene (13) eine Schraube zusammen mit einem Drehknopf der Ablesescheibe umfasst, der im oder gegen den Uhrzeigersinn gedreht wird und durch den die gesamte Führungsschiene (8) nach oben oder unten bewegt wird.
  3. Vorrichtung nach Anspruch 1 oder 2, bei der eine Vielzahl von Sensoren an vorbestimmten Punkten angeordnet sind, und wenn der Schlitten (10) mit der Messuhr (9) über die Sensoren fährt, dem Prozessor durch ein Bedienpult ein Signal zur Sammlung der Höhenmessung dieser bestimmten Punkte zugesandt wird.
  4. Die Vorrichtung nach Anspruch 1, wobei dieser Schlitten (10) eine unterschiedliche Geschwindigkeit haben kann, während er sich von einem Ende zum anderen Ende der Führungsschiene (8) bewegt.
  5. Vorrichtung nach Anspruch 1 und 2, wobei diese Führungsschiene (8) eine Vielzahl von Sensoren an jedem Ende der Führungsschiene umfasst, die angepasst sind, um die Umkehrbewegung des Schlittens (10) zu steuern.
  6. Vorrichtung nach Anspruch 1 oder 4, wobei diese Beförderungsbaugruppe auch einen Motorhalteausleger (21) umfasst, der angepasst ist, um den Motor (22) zu befestigen.
  7. Die Vorrichtung nach Anspruch 1, wobei das Präzisionszuführsystem zur Zuführung der analysierten Daten für den Abschliff der flachen Oberseiten eine Nocke (26) aufweist, die durch ein gesteuerten Servomotor oder ein Antriebssystem des Motors mit einer ruckartigen Bewegung gedreht wird.
  8. Vorrichtung nach Anspruch 7, wobei die genaue Menge des Abschliffs durch die vom Prozessor gesteuerte Drehung der Nocke geliefert wird.
  9. Vorrichtung nach Anspruch 7 oder 8, wobei das Präzisionszuführsystem die Präzisionsschiene (13) umfasst, die auf einer sich nach außen einem Aufleger (29) erstreckenden Platte (28) eingebaut ist und Rollen (27) aufweist, die mit der Nocke (26) in Kontakt stehen, und wobei bei Drehung der Nocke diese Rolle (27) die Bewegung der gesamten Platte mit dem Präzisionsschiene (13) in Aufwärts- und Abwärtsrichtung erleichtert.
  10. Vorrichtung nach Anspruch 9, wobei das Präzisionszuführsystem den Aufleger (29) umfasst, an dem eine Führung (33) funktionsfähig eingebaut ist, mittels dessen ein Führungsschlitten (31) auf der Führung (33) durch ein System mit Kugelschrauben beweglich befestigt wird, die durch einen Antriebsriemen über einen Servo- oder Schrittmotor mit einer ruckartigen Bewegung angetrieben wird.
  11. Vorrichtung nach Anspruch 10, bei der diese Führungsschiene (8) mittels einem im wesentlichen "Z" -förmigen Aufleger (34) an den Führungsschlitten (31) befestigt ist.
EP16198056.0A 2015-11-09 2016-11-09 Vorrichtung zur messung der höhe eines drahts eines wanderdeckels einer karde Active EP3168335B1 (de)

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IN4281MU2015 2015-11-09

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EP3168335B1 true EP3168335B1 (de) 2021-08-18

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Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE269638C (de) *
DE229595C (de) *
DE19923419A1 (de) * 1999-05-21 2000-11-23 Truetzschler Gmbh & Co Kg Vorrichtung an einer Spinnereivorbereitungsmaschine, z. B. Karde, Reiniger o. dgl., zur Messung von Abständen an Garnituren
CN2595822Y (zh) * 2002-10-31 2003-12-31 青岛绿环工程有限公司 具有根值差测控装置的包磨盖板针布机
DE10251574A1 (de) * 2002-11-06 2004-05-19 Trützschler GmbH & Co KG Vorrichtung an einer Spinnerei Vorbereitungsmaschine, z.B. Karde, Reiniger o. dgl., zur Messung von Abständen an Deckelgarnituren
GB2404200B (en) * 2003-07-24 2007-11-14 Indian Card Clothing Co Ltd Cleaning, brushing & resharpening device for the flat tops of a carding machine
DE102007011984A1 (de) * 2007-03-09 2008-09-11 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Karde oder Krempel zum Schleifen einer Faserverarbeitungsgarnitur, die auf einer rotierenden Trommel oder einem Deckel angeordnet ist
WO2009036584A1 (de) * 2007-09-20 2009-03-26 Maschinenfabrik Rieter Ag Schleifgerät für garnituren
CH707775A1 (de) * 2013-03-18 2014-09-30 Rieter Ag Maschf Vorrichtung zur Bearbeitung von Laufflächen an Kopfendstücken von Wanderdeckeln.

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* Cited by examiner, † Cited by third party
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