EP1880164A1 - Procede de mesure sans contact et dispositif integre dans une machine textile - Google Patents

Procede de mesure sans contact et dispositif integre dans une machine textile

Info

Publication number
EP1880164A1
EP1880164A1 EP06721925A EP06721925A EP1880164A1 EP 1880164 A1 EP1880164 A1 EP 1880164A1 EP 06721925 A EP06721925 A EP 06721925A EP 06721925 A EP06721925 A EP 06721925A EP 1880164 A1 EP1880164 A1 EP 1880164A1
Authority
EP
European Patent Office
Prior art keywords
components
voltage
distance
component
discharge
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.)
Withdrawn
Application number
EP06721925A
Other languages
German (de)
English (en)
Inventor
Emil Medvetchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter 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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1880164A1 publication Critical patent/EP1880164A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
    • 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
    • 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
    • D01G31/006—On-line measurement and recording of process and product parameters

Definitions

  • the invention relates to a non-contact measuring method and to a device on a textile machine, in particular a spinning preparation machine according to the preambles of the independent claims.
  • Optical sensors are used, for example, as band-stop sensors at the output of lines.
  • an inductive sensor is disclosed, which is associated with the lid of a card and the roller assembly is opposite.
  • DE 39 13 996 A1 also discloses non-contact sensors, in which case capacitive, inductive and optical sensors are mentioned for use on cards.
  • the advantages of the invention are in particular that a direct measurement between the projecting surfaces formed as electrodes, for example Gamitur tip and other tips, the two components by inducing electrical discharges in the form of voltage and / or current discharges between these protruding surfaces, the next Defining the distance between the components is possible.
  • the components themselves serve as sensors, between which by means of the voltage generator such a high field strength is generated that an electrical breakdown is caused. From the phenomenon of electrical discharges different conclusions can be drawn.
  • the spatial position of the projecting surfaces and thus possibly the components to each other to name, for example, the distance. It may also be inferred, if the distance is known, that certain geometry properties of the component tips are present or that geometric changes due to wear due to fiber processing have occurred.
  • the electrical discharges can alternatively or additionally be used to obtain information about the micro-operating climate in the area of the components.
  • the term "micro-operating climate” is to be understood in particular as the air temperature, the air humidity, the air velocity, the presence of ionizing particles and / or residual ionizations If the smallest distance between the components has knownly barely changed or hardly changed, but nevertheless different discharge voltages occur This can be an indication of an increased humidity in the gap between the components.Also, conclusions can be drawn from the electrical discharges on certain fiber conditions in the area of the components, for example on a fiber distribution over a larger area on which fibers are processed and / or or transported.
  • the electrical discharges can be evaluated in such a way that the shortest distance between the components is determined from the frequency and / or the number and / or the type of discharges and / or at least one electrical quantity with respect to the electrical discharges.
  • collision warnings derived from the distance thus obtained can be used to avoid touching the components.
  • an adjustment of the distance can be made to an optimal value.
  • corresponding transducers be provided, for example, pulse counter, which each register a voltage discharge or the then flowing current flow.
  • the measurement of the discharge voltage comes into consideration as the electrical measured variable, since this corresponds directly to the smallest distance between the opposing components.
  • the distance between the two components or their protruding surfaces is reduced until a voltage discharge occurs. From the discharge voltage at this distance, an accurate calculation of this distance can be performed. Alternatively, the distance between the two components is increased until the number of voltage or spark discharges becomes smaller or voltage or spark discharges are completely prevented.
  • an operator can advantageously carry out an optical control of the voltage discharges if the discharge energy is high enough and the ambient lighting is suitably selected. For this purpose, for example, to provide a visible gap through which the gap between the components can be observed.
  • Voltage discharges is possible if the voltage source is designed as a pulse generator capable of generating a variable voltage, for example a DC voltage with sawtooth-shaped peaks (so-called peaks).
  • the breakdown is expediently caused during the voltage increase in order to pick up the currently prevailing voltage during the spark discharge and to evaluate the distance between the component tips. Either one of the two components is grounded here or both components have a potential different from zero compared to ground.
  • This phenomenon can be exploited by determining the voltage required to maintain the plasma current (also covered by the term “electrical discharge” in the terminology of the invention.) This voltage is also called the plasmal extinction voltage A function of this erase voltage and the plasma current and thus also by computational evaluation easily determined.
  • This potential difference in the low voltage range is dependent on the component spacing and is not affected by the residual moisture of the fibers.
  • an evaluation unit which includes the aforementioned
  • Measured values are evaluated.
  • Such a computer-assisted evaluation can give the operator - in particular on a machine display - an indication of how he has to make an optimal setting of the machine, for example the distance between the components.
  • a component spacing determined by the method according to the invention can be used to automatically set the optimum distance.
  • appropriate adjustment means are provided, which set, for example, the distance between two opposing trimmings on the basis of the arithmetical evaluation.
  • the evaluation unit after determining the
  • Set spacing control commands to the adjustment for example, appropriately trained actuators.
  • a further development of the method according to the invention is characterized in that statistical calculations are carried out by means of the evaluation unit in order to eliminate effects of fibers in the intermediate space between the two components on the measurement results.
  • the statistical evaluation thus provides in the result Measured values for electrical discharge in fiber-free air, which contain an accurate statement about the actual component spacing.
  • the maximum distance-related potential difference generated between the components or their tips is adjustable in the range between 1000 and 10 000 V. It has proven to be advantageous if this range is adjustable between 2,000 and 5,000 V, and preferably between 2,500 and 3,500 V. At a distance of about 0.4 mm, the calculated breakdown voltage is about 1 280 V.
  • the discharge energy during a voltage discharge should amount to less than 10 mJ, otherwise there would be a fire and electric shock hazard. Also, the protruding surfaces could be worn by electroerosion over masses.
  • the discharge energy is even less than 5 mJ and preferably less than 1 mJ. With these discharge energies, there is no danger to the operator if he accidentally short circuits the circuit with his body.
  • the two components have a plurality of opposing electrodes or tips.
  • a spatial resolution of the voltage or spark discharges can then be carried out. Assuming an equal distance between all opposing electrodes from each other, different spark discharges (in particular with regard to the respective discharge voltages and / or their frequency) give an indication that there is an uneven fiber distribution between the two components.
  • measurements are made with fibers and measurements without fibers in order to conclude from a comparative analysis, in particular by differentiation of the measured values of the two measurements, on the actual influence of the fibers.
  • determination of the fiber occupancy it is thus possible, for example, to calculate out the influences of non-uniform distances of the electrodes over the measuring surface.
  • the device according to the invention has at least one reference component pair with mutually directed, electrically conductive tips, between which voltage discharges are provoked.
  • This reference component pair serves as a reference measuring unit, wherein the distance between the tips (reference electrodes) of these two components is known. This distance can be changed defined according to a preferred embodiment, in which case the new distance between the tips of the reference component pair must be known.
  • the additional reference component pair preferably has a similar surface geometry as the directly opposite sections of the actually interesting components of the spinning preparation machine. Due to the known distance between the reference electrodes and the comparable surface geometry can
  • Influences of the surface geometry on the measured values of the electrical discharges between the components of interest of the spinning preparation machine be taken into account, for example, to increase the accuracy of a distance calculation between these components.
  • the additional at least one reference component pair can alternatively or additionally be used to eliminate the influences of the micro-operating climate on the measured values of the electrical discharges between the components of the spinning preparation machine of interest.
  • the reference component pair is to be placed in the same micro-operating climate as the components.
  • the two components of the spinning preparation machine used for the measurement according to the invention move relative to one another, wherein an identical or opposite movement is possible.
  • a voltage having a repetition sequence of several successive rising and falling edges is advantageously used.
  • one component is stationary and another component is moved past this component.
  • a spark discharge is produced at the moment of the shortest distance between the two components.
  • one or both of the opposing components have a sawtooth.
  • one of the two components comprises a Sge leopardgarnitur and the other a needle assembly (also known as flexible clothing or wire clothing).
  • a needle assembly also known as flexible clothing or wire clothing.
  • here is the saw tooth gambit one
  • Card drum and the flat cover with flexible or semi-rigid wires called a revolving lid arrangement of the card.
  • a revolving lid arrangement of the card Especially the distance between these two sets is relevant for the carding result, so that an optimal setting is of great advantage. Since virtually all the clothing tips involved in the carding process can be used as sensors, an extremely precise distance determination and thus distance adjustment is possible.
  • the invention can also be used in a machine in which one of the two opposing components has a SAge leopardgarnitur and the other has a knife.
  • both components are e.g. made of roller can be dressed with the same or different sets.
  • the trimmings can i.a. Sawtooth or needle sets, the exact set depends on the use in the card.
  • the licker-on roller has a licker-in rake in the form of a saw tooth or a needle roller and the other component of the drum is a drum set, usually a saw tooth set.
  • the one component may be a roller with clothing, while one or more shell blades and / or slotted plates and / or perforated plates represent the at least other component.
  • Drum set are arranged opposite. Again, electrical discharges between the sets of Kardiersegmente and opposite sets can cause.
  • the invention can also be used on a carding machine, in which one component is the drum set and the other component is the pickup assembly.
  • the distance between the electrodes of the two components is coupled to a device forming a gap through which fiber material is transported.
  • the diameter of the gap changes due to the thickness variations of the fiber material.
  • These thickness variations or the absolute thickness of the fiber material can now be measured by the fact that from the frequency and / or the number and / or at least one electrical size (preferably the discharge voltage) on the instantaneous thickness of the fiber material in the gap can be concluded.
  • the opposing tips or electrodes must in this case be so close to each other that voltage or spark discharges are very frequent in order to obtain a high spatial resolution with respect to its thickness variations as a function of the transport speed of the fiber material
  • Figure 1 is a schematic side view of a card
  • Figure 2 is a schematic representation of the spark generation between two shegeieregarnituren of drum and customer on a carding machine
  • FIG. 3 shows a voltage-time diagram and a current-time diagram for
  • Figure 4 is a reduced view of the card of Figure 1;
  • Figure 4a - 4d five enlarged illustrations of details of the card; 5 shows a voltage-time diagram and a current-time diagram for
  • Figure 6 shows a cleaning machine in a schematic side view
  • 7 shows a schematically illustrated measuring arrangement for measuring the
  • Figure 8 shows a fiber guide in side view with integrated
  • FIG. 1 shows a known carding machine 1, wherein flakes are fed from a feed chute 2 to a feed roller 3 and a subsequent licker-in 4.
  • the carding machine 1 comprises a single drum 5 (master cylinder or so-called drum), which is rotatably supported in a frame.
  • the drum 5 operates in a known manner with a moving lid assembly 6, a fiber feeding system 7, which in particular includes the feed roller 3 and the breeze 4, and a fiber pickup 8 together, the latter in particular a so-called.
  • Carding elements 10 can be arranged in the front, rear and lower carding zones of the carding machine 1.
  • the fiber-removing system 8 conveys the sliver FB to a schematically indicated fiber sliver tray 11.
  • a plurality of flat slats 13 are provided on the above slidable cover arrangement 6, wherein only individual slats 13 are shown schematically in FIG.
  • Currently used traveling lid assemblies 6 include closely spaced a plurality of flat bars 13 which circulate in a circle.
  • the flat bars 13 are supported in the vicinity of their respective end faces of endless belts 18 and moved against the direction of rotation of the drum 5 and guided past the drum 5 on the underside of the traveling lid assembly 6.
  • a high voltage source 101 charges a capacitor 103 via a variable resistor 102, the magnitude of the set resistance determining the discharge frequency and the capacitance of the capacitor 103 determining the discharge energy.
  • the high voltage source 101 is connected to a stationary sliding contact 28, which has electrical contact with the drive shaft 29 of the pickup 9.
  • a stationary sliding contact 26, which rests on the drive shaft 27 of the only partially illustrated drum 5, is grounded.
  • a voltage discharge can be generated from the protruding surfaces 19a formed as tips 19a (second component in the sense of the invention) to the projecting surfaces 25a of the drum set 25 (first component according to the invention) formed as tips, which bridges the gap between the tips 19a, 25a and causes a short circuit in the circuit.
  • the capacitor 103 discharges.
  • the discharge voltage is measured with the voltage measuring arrangement or the measuring sensor 104, which has a high-impedance input, and transmitted to an evaluation unit 50.
  • the evaluation unit 50 calculates, by means of a stored algorithm, the instantaneous distance between the protruding surfaces or tips 19a, 25a which exists during the voltage discharge. Via a display 52, this distance can be displayed, for example.
  • an optical and / or acoustic warning signal can be output via a signal device 53 and / or appropriate measures can be taken, for example production and / or or the whole machine stopped and / or new settings made automatically.
  • FIG. 3 shows the time profile of the voltage applied to the projecting surfaces or tips 19a, 25a of the fittings 19, 25-more precisely, the potential difference between them-here a repetition sequence consisting of a plurality of successive rising and falling edges in FIG Shape of a sawtooth voltage is selected. It increases linearly from zero to the voltage Um ax , and then drops abruptly to zero. In this area A, in which no spark discharges occur, is the actual distance ⁇ A (measuring distance) of the clothing tips 19a, 25a greater than the maximum measurable distance 5MAX-
  • the measuring distance ⁇ B between O and 5MAX, SO that voltage discharges occur at a breakdown voltage of UE, ie the potential difference between the protruding surfaces or Gamiturspitzen 19a, 25a is so large that a voltage discharge occurs, a short circuit occurs and Therefore, the voltage drops quickly to zero, then to rise again linearly according to the predetermined voltage curve.
  • account is taken of the relative speeds of the pickup assembly 19 and of the drum set 25 and of the sets of tip densities of the above-mentioned elements.
  • the discharge voltage UE for subsequent spark discharges substantially the same size, provided that the distances to be measured are also identical.
  • the measuring distance ⁇ c is smaller than OB, so that the breakdown voltage UE- is smaller than the breakdown voltage UE in the region B. Therefore, the frequency of breakdowns and the occurrence of spark discharges in the region C is greater than in the region B.
  • the discharge currents are shown shortly after the spark discharges as a function of time.
  • Short-circuit currents only flow for a short time, since the voltage U has also dropped to zero.
  • the maximum flowing current is designated here by IE. From the size of the current value, conclusions can also be made on the clothing spacing ⁇ . Finally, in the area D, the situation of a short circuit is shown in which a constant short-circuit current flows.
  • Figures 4a - 4d illustrate further possible applications of the invention on a carding machine 1, which is shown in Figure 4 again in a smaller representation than in Figure 1.
  • Carding plates or carding rods can be used in front of the inlet-side carding segment 31 'and between the two carding segments 31', 31 ", in each case a shell knife 32 'or 32" of spark discharges between the tip-shaped protruding surfaces 31 'a, 31 "a of FIG
  • the corresponding electrical taps, connections and the other electronic components (evaluation unit, etc.) are not shown, since they can be constructed according to the situation according to FIG.
  • the desired parameters can be determined by means of spark discharge and corresponding voltage detection.
  • the distance between the projecting surfaces 21a of the flat clothing 21 (first component in the sense of the invention) formed as tips is the flat bars 13 and the projecting surfaces 25a formed as tips the sawtooth set 25 (second component according to the invention) of the drum 5 can be determined.
  • it can be provided to effect spatially resolved spark discharges (with respect to set spacing, fiber occupation, etc.) across the width of the flat bars 13 by appropriate subdivision of the flat bar garniture area, in order thus to produce e.g. Inclined positions of the flat bars 13 or uneven wear of the flat bar sets 21 or the drum sets 25 to determine.
  • FIG. 4d shows a shell blade 34, which is set at a small distance from the drum 5 and belongs to a suction channel 35. Foreign parts stripped off the drum surface enter the suction channel 35 and are removed via a collecting chamber 36.
  • a fixed carding segment 37 is arranged below the shell blade 34.
  • the upper Drum cover plate 38 and below the carding 37 the lower drum cover plate 39 located.
  • the invention can be used at this point in such a way that the first component according to the invention, the drum set 25 and the second component either the shell blade 34 or the carding segment 37. In both cases, distance, wear etc.-as described above for the other scenarios-can be determined by spark generation and corresponding measured value recording and evaluation between the respective projecting surfaces 25a, 34a or 37a formed as tips.
  • FIG. 5 shows a voltage-time diagram and a current-time diagram for the case of plasma generation for non-contact distance determination between two components of a textile machine.
  • a sawtooth-shaped voltage U is also applied here.
  • the regions A and D correspond to those in FIG. 3.
  • UE, B (for the region B) or UE, C (for the region C) lie below the maximum voltage U ma ⁇ Spark discharges with the discharge current IE, B and l E , v caused.
  • the voltage is then adjusted in such a way to a voltage value U P , B or Up, c, that in each case a substantially constant plasma current Ipfliesst.
  • FIG. 6 shows a coarse cleaner 40 as an example of one
  • Spinning mill preparation machine with a cleaning device It has a driven opener roller 41, which rotates in the direction of rotation DR, and is occupied in the usual way with striker 42.
  • the outer ends 42a of the strike pins 42 move on the beat circle SR.
  • the coarse cleaner 40 has an inlet E to Supply of to be cleaned fiber material FM ZU and an outlet A for the cleaned fiber material FM ger .
  • the supplied fiber material FM ZU is in the form of fiber flakes FF, which are transported by a conveying air flow. In this case, the conveying air flow is guided around the opening roller 41. Due to the mechanical action of the impact pins 42 on the fiber flakes FF they are continuously refined. In this case, dirt material is extracted from the fiber flakes FF.
  • a large part of this dirty material passes with a portion of the fiber flakes FF as a departure AG through the spaces between grate bars 43 through into a collecting tray M.
  • the invention can be used in this machine to z.
  • FIG. 7 shows schematically how the strip thickness or the strip cross section of a fiber strand FB can be determined by means of the invention.
  • the fiber structure FB which may consist of several slivers, runs at least in sections with the least possible friction on a pad 44.
  • a tactile finger 45 is pressed by spring force or other force (related means not shown) against the sliver FB, so that between Pad 44 and finger 45, a gap S is formed.
  • the sensing finger 45 is in this case pivotally mounted about an axis A, so that it is deflected more or less in accordance with the band fluctuations. When scanning, for example, a thick point of the feeler finger 45 is deflected more.
  • a first component 46 is arranged with a tip 46a (projecting surface in the sense of the invention), which is located opposite a stationary component 47 with a tip 47a (projecting surface) on a cantilever 48.
  • spark discharges can be generated to determine from the discharge voltage to the distance of the tips 46a, 47a and thus - using an evaluation unit 50 - continuously the thickness of the fiber structure FB. For this the must Frequency of the sawtooth voltage to be matched to the Faser claim horrilia to obtain a sufficiently high spatial resolution.
  • FIGS. 8 and 9 show an embodiment with which reference measurements can be made. An additional
  • Reference component pair 71, 75 is mounted within a Faserleitelements 60, which thus has a double function.
  • the fiber guiding element 60 is located between the traveling lid arrangement 6 and a carding element 10 (both not shown here, but FIG. 1).
  • a narrowing drum in the direction of rotation gap 61 is provided to compress the entrained by the drum 5 air L (dashed dotted line).
  • This is followed in the flow direction of the air L an opening 62, through which the air L penetrates into the interior of the Faserleitelements 60.
  • the concave shape and size of this opening 62 prevent fibers from entering the interior space of the fiber guiding element 60.
  • the substantially fiber-free air in the housing of the fiber guiding element 60 continues to circulate through a downstream opening 63 on the underside of the fiber guiding element 60, wherein an additional dynamic negative pressure, which arises in the widening, subsequent column 64, supports the air flow movement.
  • the openings 62 and 63 can be arranged one after the other in a line or offset (see the plan view according to FIG.
  • a closed space is defined by walls 65 and the removable cover 66 (placed in Fig. 9, removed in Fig. 10).
  • this space is the reference pair of components, on the one hand a fixed component 71 which is disposed on an insulator 72 and an electrode tip 73 made of a platinum alloy, and on the other hand by hand or with a corresponding actuator in the distance to the component 71 adjustable component 75 with an electrode tip 76 also made of a platinum alloy.
  • the component 75 is pivotally attached to a leg 79. The said distance is adjusted by a leg 79 passing through screw 77, which acts on the acted upon by a spring 78, pivotable component 75.
  • the component 75 is For example, electrically connected to the ground and the component 71 by means of a guided through an insulator 67 in the cover 66 cable 68 to a measuring unit or a voltmeter.
  • the electrode tips 73 and 76 have in the illustrated embodiment, the main geometry features (each radius and angle) of the tips of the drum set 25 and the tips of the pickaxe 19. These geometric properties have a direct impact on the corona effect and thus allow comparable results of Reference spark discharges between the tips 73, 76 on the one hand and the spark discharges between the tips of the
  • micro-operating climate is to be understood as meaning, in particular, the air temperature, the air humidity, the air velocity, the presence of ionizing particles and / or residual ionization, in particular the values of the tip angles of the trimmings 19, 25 and the values of the tip radii.
  • spark discharge was used in the preceding, it also includes voltage discharges that are barely or not visible to the naked eye.
  • the invention therefore relates to a contactless measuring method by means of at least two opposing components of a textile machine, wherein the components (25, 19, 30, 31 ', 31 ", 32', 32", 25, 30, 25, 21, 25, 34, 37, 42, 43, 46, 47) has at least one electrically conductive surface, in particular projecting surface, tip (25a, 19a, 30a, 31'a, 31'a, 32'a, 32'a, 25a, 30a, 25a, 21a, 25a, 34a, 37a, 42a, 43a, 46a, 47a) and by applying a variable potential difference per se opposing projecting surfaces at least one electrical discharge between them is provoked, from which on spatial relationships and / or on geometry properties of opposing protruding surfaces and / or on the operating microclimate and / or on fiber ratios in the area of the components is concluded.
  • the invention also relates to a corresponding device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Procédé de mesure sans contact à l'aide d'au moins deux parties structurales opposées d'une machine textile, lesdites parties structurales (25, 19; 30, 31', 31'', 32', 32''; 25, 30; 25, 21; 25, 34, 37; 42, 43; 46, 47) possédant au moins chacune une surface électro-conductrice, en particulier une surface en saillie ou pointe (25a, 19a; 30a, 31'a, 31''a, 32'a, 32''a; 25a, 30a; 25a, 21a; 25a, 34a, 37a; 42a, 43a; 46a, 47a). Par application d'une différence de potentiel pouvant être modifiée sur des surfaces saillantes opposées, au moins une décharge électrique est provoquée entre lesdites surfaces, et des relations spatiales et / ou des caractéristiques géométriques de surfaces saillantes opposées et /ou le microclimat de fonctionnement et / ou l'état des fibres dans la zone des parties structurales sont déduits de cette décharge électrique. La présente invention concerne en outre un dispositif correspondant.
EP06721925A 2005-05-11 2006-04-24 Procede de mesure sans contact et dispositif integre dans une machine textile Withdrawn EP1880164A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8322005 2005-05-11
PCT/CH2006/000223 WO2006119655A1 (fr) 2005-05-11 2006-04-24 Procede de mesure sans contact et dispositif integre dans une machine textile

Publications (1)

Publication Number Publication Date
EP1880164A1 true EP1880164A1 (fr) 2008-01-23

Family

ID=36609481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06721925A Withdrawn EP1880164A1 (fr) 2005-05-11 2006-04-24 Procede de mesure sans contact et dispositif integre dans une machine textile

Country Status (3)

Country Link
EP (1) EP1880164A1 (fr)
CN (1) CN101175969A (fr)
WO (1) WO2006119655A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3564420B1 (fr) 2018-05-02 2021-07-07 Trützschler GmbH & Co. KG Procédé et dispositif de traitement de fibres

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699538B1 (de) * 2006-01-19 2010-03-31 Truetzschler Gmbh & Co Kg Vorrichtung an einer Spinnereivorbereitungsmaschine, insbesondere Karde oder Krempel, zur Überwachung und/oder Einstellung von Abständen an Bauteilen.
EP2743385B1 (fr) * 2012-12-14 2014-07-23 Maschinenfabrik Rieter Ag Procédé et dispositif de surveillance de contacts d'un composant rotatif d'une machine textile
CN103837779B (zh) * 2014-03-17 2016-08-17 王荣春 提花织机组件的动态检测仪
DE102017101863A1 (de) * 2017-01-31 2018-08-02 TRüTZSCHLER GMBH & CO. KG Detektionsvorrichtung an einer Spinnereivorbereitungsmaschine und dafür vorgesehene Deckelstabgarnitur
CH713459A1 (de) * 2017-02-15 2018-08-15 Rieter Ag Maschf Verfahren zum Betreiben einer Karde sowie Karde.
DE102018112053A1 (de) * 2018-05-18 2019-11-21 TRüTZSCHLER GMBH & CO. KG Verfahren zur Ermittlung der Trommelbelegung an einer Karde sowie Karde mit einer zugehörigen Steuerung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2063477A (en) * 1979-11-14 1981-06-03 Plessey Co Ltd Measuring Clearance Gap Between Turbine Blades and Surrounding Duct
DE3937912C2 (de) * 1989-11-15 2000-07-27 Rolls Royce Deutschland Abstandsmeßeinrichtung
WO1993021368A1 (fr) * 1992-04-08 1993-10-28 Bruno Pirone Detecteur de profil mobile, en particulier pour detecter des aiguilles abîmees de machine a tricoter
GB2312957A (en) * 1996-05-09 1997-11-12 Rotadata Ltd Alternating current spark discharge probe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006119655A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3564420B1 (fr) 2018-05-02 2021-07-07 Trützschler GmbH & Co. KG Procédé et dispositif de traitement de fibres

Also Published As

Publication number Publication date
WO2006119655A1 (fr) 2006-11-16
CN101175969A (zh) 2008-05-07

Similar Documents

Publication Publication Date Title
EP1880046B1 (fr) Machine de preparation de filature et procede de mesure sans contact
DE4235610C2 (de) Vorrichtung an einer Spinnereivorbereitungsmaschine, z. B. Karde, Reiniger o. dgl., zur Messung von Abständen an Garnituren
EP1880164A1 (fr) Procede de mesure sans contact et dispositif integre dans une machine textile
DE102006002812B4 (de) Vorrichtung an einer Spinnereivorbereitungsmaschine, insbesondere Karde, Krempel o. dgl., zur Überwachung und/oder Einstellung von Abständen an Bauteilen
EP1454133B1 (fr) Utilisation de micro-ondes dans l'industrie de la filature
DE10214955B4 (de) Spinnereivorbereitungsmaschine
EP1304933A1 (fr) Procede et dispositif pour la detection et la selection de corps etrangers dans des cigarettes
EP2097564B1 (fr) Machine textile et procédé de mesure sans contact
EP2743385B1 (fr) Procédé et dispositif de surveillance de contacts d'un composant rotatif d'une machine textile
DE3622520A1 (de) Verfahren und einrichtung zur ueberwachung eines funkenerodier-prozesses in einer funkenerodiermaschine
DE102005019760B4 (de) Spinnereimaschine mit einem Streckwerk zum Verstrecken eines Faserverbandes und entsprechendes Verfahren
EP1316630B1 (fr) Dispositif et procédé pour mesurer la masse et l'humidité d'une matière fibreuse dans une machine de préparation de filature
EP0485881B1 (fr) Procédé et dispositif pour commander une carde
DE1933640B2 (de) Einrichtung zur kontaktlosen Messung der Längsbewegung eines Materials
CH694054A5 (de) Vorrichtung an einer Spinnereivorbereitungsmaschine zur Messung von Abständen an Gegenflächen.
EP0927887A1 (fr) Procédé pour détecter des défauts d'un échantillon en mouvement
EP3583257B1 (fr) Procédé de fonctionnement d'une carde, et carde
WO2014020119A9 (fr) Procédé d'évaluation et capteur de fil
WO1998018985A1 (fr) Organe de mesure d'entree pour dispositif d'etirage
DE102014109651B4 (de) Mikrowellenhohlraumresonator sowie damit ausgerüstete Spinnereivorbereitungsmaschine
EP3564420B1 (fr) Procédé et dispositif de traitement de fibres
CH694330A5 (de) Vorrichutng an einer Spinnereivorbereitungsmaschine zur Messung von Abständen an Garnituren.
EP4227455A1 (fr) Carde
CH719417A1 (de) Karde mit einem Beschleunigungssensor zur Messung von Körperschall.
WO2008151454A1 (fr) Dispositif et procédé de contrôle d'un fil

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20071018

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE IT LI

RBV Designated contracting states (corrected)

Designated state(s): CH DE IT LI

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20091103