EP1880046B1 - Machine de preparation de filature et procede de mesure sans contact - Google Patents

Machine de preparation de filature et procede de mesure sans contact Download PDF

Info

Publication number
EP1880046B1
EP1880046B1 EP06721951A EP06721951A EP1880046B1 EP 1880046 B1 EP1880046 B1 EP 1880046B1 EP 06721951 A EP06721951 A EP 06721951A EP 06721951 A EP06721951 A EP 06721951A EP 1880046 B1 EP1880046 B1 EP 1880046B1
Authority
EP
European Patent Office
Prior art keywords
voltage
card
tips
clothing
distance
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.)
Active
Application number
EP06721951A
Other languages
German (de)
English (en)
Other versions
EP1880046A1 (fr
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36603498&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1880046(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1880046A1 publication Critical patent/EP1880046A1/fr
Application granted granted Critical
Publication of EP1880046B1 publication Critical patent/EP1880046B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

Definitions

  • the invention relates to a spinning preparation machine and a non-contact measuring method according to the preambles of the independent claims.
  • Indirect measuring methods are those in which the immediate distance of the opposing clothing tips is not measured.
  • An example of this is in the above DE 42 35 610 A1 which discloses a distance measurement of the drum set to a flat bar in which only the sensors are accommodated.
  • DE 39 13 996 A1 are provided on the front sides of the fittings sensor, which are associated with the card drum and measure the distance to opposite counterparts on the lid. It is also known to determine the distance between the sliding shoes, which are attached via cover heads to the flat bars, to the flat fitting. From these indirect distance measurements is then closed on the immediate distance of the clothing tips.
  • DE100 53 139 A1 discloses a device on a spinning preparation machine, e.g. B. card, cleaner o. The like., For setting distances to trimmings, in which a garnished roller with a garnished counter surface, z. B. lid, cooperates and in which the distance between the garnished areas is changeable.
  • a contact between the tips of the set of at least one flat bar and the tips of the drum set by displacement of the flat bars can be produced and released again and the contact can be detected by a device.
  • the aforementioned devices and methods have the disadvantage that on the one hand they are expensive and on the other hand often provide averaged distance values only over a larger number of clothing needles or clothing teeth. In addition, a calibration based on a hand measurement is necessary.
  • the advantages of the invention are in particular that a direct distance measurement between the tips of relatively moving sets can be performed.
  • the clothing tips themselves are used as sensors, also an extremely cost-effective solution is realized.
  • the provoked electrical discharges in the form of voltage and / or current discharges make it possible, in particular, to deduce from the potential difference between the clothing tips prevailing during the voltage discharge, how great the distance between the said tips is.
  • the frequency and / or the number and / or the type of discharges can be observed and / or evaluated.
  • such direct distance measurements can also be realized in the smallest distance ranges, in particular between 0 and 0.5 mm.
  • the invention allows individual distance measurements between each lid to the drum set and / or between certain zones of the flat set to the drum set, as will be explained later.
  • the invention offers the advantage that measurements can be performed regardless of material properties, humidity and temperature, if these effects are averaged out.
  • an evaluation unit which evaluates the inventive distance determination between clothing tips on the basis of the aforementioned parameters (frequency, number, type of discharges and evaluation of the electrical parameters in electrical discharge).
  • a computer-aided evaluation provides fast and precise values for improved adjustment of the Clothing tips to each other, which increases the performance of the machine.
  • the evaluation unit evaluates the measured values and gives the operator - for example on a machine display - instructions on how he has to change the distance between the sets.
  • the operator can alternatively or additionally be issued information about the current state of wear of the trimmings and / or about the inclination angle (tightening angle) of the flat clothing over the drum, as will be explained later.
  • the voltage value is registered immediately before a voltage discharge from a voltage measuring device.
  • This voltage value is in direct functional relationship to the smallest distance of the opposing clothing tips in the voltage discharge, so that a precise determination of this distance is possible.
  • the voltage source is designed as a pulse generator which is capable of generating a variable voltage, for example a sawtooth-shaped voltage or a DC voltage with sawtooth-shaped tips.
  • the constant component i. the DC voltage
  • the maximum tension preferably corresponds at least to the largest expected clothing spacing.
  • the breakdown is expediently caused in each case during the voltage increase in order to pick up the currently prevailing voltage during the voltage discharge and to evaluate the spacing of the clothing tips.
  • the machine according to the invention has an additional pair of electrodes, between which voltage or spark discharges are provoked.
  • This electrode pair serves as a reference measuring unit, wherein the distance of the two electrode tips is known. This distance can be changed defined according to a preferred embodiment, whereby here, too, the new distance of the electrode tips must be known.
  • the additional electrode pair preferably has a similar surface geometry as the trimmings. Due to the known distance between the reference electrodes and the comparable surface geometry, influences of the surface geometry on the measured values of the voltage discharges between the sets can be reduced by means of the evaluation unit. This procedure thus increases the accuracy of the distance calculation between the clothing tips.
  • the additional reference electrode pair may alternatively or, preferably, be used in addition to calculate the influences of the micro-operating environment and / or the set geometries on the electrical discharge measurements between the sets.
  • the reference electrodes are to be placed in the same micro-operating climate as the sets.
  • 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.
  • the geometry of the clothing should be understood to mean the values of the point angles of the clothing and the values of the peak radii. The The aforementioned parameters have an influence on the corona effect and thus on the magnitude of the discharge voltage.
  • the additional electrode pair is arranged outside the carding area of the spinning preparation machine designed as a carding machine in order not to influence the carding process or to reduce its efficiency. It has also proved to be advantageous if the additional pair of electrodes is arranged in a space in which substantially no fibers can penetrate during operation of the spinning preparation machine, so that these no fiber-related breakdowns or other influence on the measurement results with the reference electrodes including a flight of the measuring space can cause. Further, when passing through the measuring space an air stream containing substantially no fibers and originating from the carding area, the micro-operating climate in the measuring space is substantially identical to that between the two sets.
  • a user may additionally or alternatively perform optical control of the spark discharges provided they are bright enough to observe them more closely. For this purpose, for example, provide a visible gap through which the gap between the trimmings can be observed.
  • one set is designed as a flat set of a card and the other set as an associated drum set. 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 method according to the invention is advantageously applicable, since due to the movements of the components involved and the carding the risk of a rapid change in distance exists and thus by adjusting the sets to each other can be reacted quickly.
  • each lid comes into electrical contact during its movement.
  • each short sliding contacts or brushes are provided at the measuring points, which detect only a single cover.
  • the advantage lies in the possibility of monitoring individual lids, for example, to determine any damage and / or the individual clothing wear.
  • the traveling lid is measured over a larger, possibly even over the entire, the drum opposite running area.
  • a long sliding contact or a long grinding brush which extends over the entire raceway of the revolving cover.
  • An electrical insulation between the two sets is advantageously designed such that the flat bars rest on the front side on two sliding arcs, said sliding arches are made of electrically non-conductive plastic or provided with such a plastic layer.
  • Such bends are preferably flexible bows on which the lid heads of the flat bars are guided while passing on the drum set. This electrical insulation ensures the voltage discharge between the clothing tips.
  • a high accuracy of the distance detection can be obtained when the potential differences for the voltage discharge between the sets over the entire carding width are generated.
  • the device according to the invention or the method according to the invention thus make possible a large-area sensor which covers a substantially larger measuring area than the known sensors. If a spark discharge is triggered on this surface, the operator receives an indication of the smallest available distance of all opposing clothing tips and can react accordingly.
  • the above-described sliding contact on the flat bar usually has electrical contact with all clothing tips due to the Garniturnadelanbringung the clothing strip. Therefore, in this case, the exact location of the spark discharge can not be located. In contrast, a spatially resolved measurement provides more precise statements.
  • at least one at least partially electrically conductive surface element may be provided, which has electrical contact with the clothing tips facing away from the clothing ends. With spark discharges thus current flows from the clothing tips over the Contact the trimmings with the electrically conductive surface element to the voltage source to close the circuit.
  • This at least one electrically conductive surface element can be localized, for example, at locations of the clothing strip which are known to be relevant on the flat rod.
  • the at least one surface element has a plurality of electrically isolated guide zones distributed on the surface element. It is advisable to distribute these guide zones over the length and / or across the width of the associated clothing strip in order to make special location statements about the voltage discharges and thus about the smallest distance between the associated clothing tips in the respective sections. About appropriate taps and signal lines, these control zones are each connected to the voltage source and the voltage measuring device, which is at voltage discharges, the evaluation unit due to the different circuits capable of distinguishing the control zones from each other.
  • the condition of the tips in the various carding zones can be assessed.
  • the state of the flexible sheet can be assessed on the basis of signals of such electrical taps, which are assigned to different carding zones of the cover, when these carding zones are arranged one behind the other in the direction of rotation.
  • the trimmings are moved relative to each other, advantageously a voltage having a repeat sequence of a plurality of successive rising and falling edges is used.
  • the repetition sequence is set to the maximum expected relative speed between the clothing tips and to the largest expected clothing peak density.
  • a maximum distance-related potential difference produced between the clothing tips is adjustable, which exceeds the dielectric strength of the air (about 3 200 V / mm) and, depending on the desired measurement range, lies 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 carding gap of about 0.4 mm, the calculated breakdown voltage is about 1 280 V.
  • the discharge energy at spark discharge should amount to less than 10 mJ, otherwise there would be a fire and electric shock hazard. Also, the clothing tips would be worn by electroerosion over masses. Preferably, 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.
  • a further development of the method according to the invention is characterized in that statistical calculations are carried out by the evaluation unit in order to eliminate the effects of fibers in the clothing gap on the measurement results.
  • the statistical evaluation provides measured values for spark discharge in fiber-free air, which contain an accurate statement about the actual clothing tip spacing.
  • it is alternatively or additionally possible to perform measurements without the presence of fibers in order to make such or similar statements.
  • the clothing tip spacing determined by the method according to the invention can be used to automatically optimally adjust the distance.
  • corresponding adjustment means are provided which set the clothing spacing on the basis of the arithmetic evaluation and / or the optical control on the part of the operator.
  • the evaluation unit after determining the clothing spacing control commands to the adjustment.
  • These adjustment means are, for example, actuators, which act on the curve of the flexible bend around the sliding blocks of the flat bars raise or lower, so as to increase the clothing tip distance or to reduce.
  • a successive adjustment of the two flat-top end faces be carried out.
  • the distance is initially reduced on the first side such that a desired distance value ⁇ is set on the basis of the registered and / or observed spark discharges. Under certain circumstances, this can be controlled by means of the conventional techniques of the measuring rods to be introduced into the carding nip.
  • the lid is now parallel to the drum. This procedure ensures a substantially equal distance over the entire carding width of the flat bar.
  • the discharge voltage is used as a collision warning when falling below a predetermined distance of the clothing tips. If the tips are very close to each other, the discharge voltage is correspondingly low, so that in particular when falling below a predetermined discharge voltage, a collision indication by means of a corresponding signal apparatus, z. B. acoustically and / or visually, and / or a suitable measure is taken to prevent the Kolission.
  • FIG. 1 a known carding machine 1 is shown, wherein flakes F are fed from a hopper 2 to a feed roller 3 and a subsequent brush cutter 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 works in a known manner with a traveling 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 has a so-called.
  • Carding elements 10 can be arranged in the front, rear and lower carding zones of the carding machine 1. Between the revolving lid arrangement 6 and the carding elements 10, fiber guiding elements not shown in detail are arranged, which will be discussed in more detail later.
  • the fiber-receiving system 8 conveys the sliver FB to a schematically indicated sliver storage 11.
  • a plurality of flat bars 13 is provided, wherein in the FIG. 1 only individual bars 13 are shown schematically.
  • traveling lid assemblies 6 include closely spaced a plurality of flat bars 13 that rotate.
  • the flat bars 13 in the vicinity of their respective end faces of endless belts 18 (see FIG. 3 ) and moved against the direction of rotation of the drum 5 and passed on the underside of the traveling lid assembly 6 to the drum 5.
  • FIG. 2 shows a flat bar 13 viewed from the front side.
  • a central portion 14 of the flat bar 13 is formed as a hollow profile.
  • a central web 15 is provided to increase the stability of the flat bar 13.
  • On the underside of the central portion 14 is a clothing strip 20 with a flat clothing 21, consisting from a multiplicity of clothing needles, fastened by means of clips or clamps 16.
  • the flat bar 13 is guided in the direction of movement D on a provided with a drum set 25 outer surface of a drum 5, which rotates in the direction T.
  • the drum assembly 25 has a plurality of schematically illustrated clothing tips which are circumferentially distributed over the drum surface.
  • FIG. 3 shows the flat bar the FIG. 2 in a broken longitudinal view. He has at its two end faces in each case a lid head 17, which is inserted into the lower hollow portion of the flat bar 13. Each lid head 17 is provided on its underside with a sliding shoe 19 which rests on the two respective end face of the flat bar 13 arranged flexible sheet 12 to form a sliding surface G and slides along these flexible sheets 12. In the lid heads 17 also engage the upper side, the two endless belts 18 a. For clarity, the brackets 16 in the FIG. 3 not shown.
  • FIG. 4 schematically shows the spark generation and the measurement of the discharge voltage.
  • a voltage generator 41 is connected via a line to a stationary sliding contact 42.
  • the sliding contact 42 comes successively into electrical contact with the upper side of the respective, surrounding flat bars 13, which are guided past the sliding contact 42 in the working direction D.
  • the already mentioned clothing strip 20 is provided, in which the clothing 21 is inserted in the form of clothing needles.
  • the clothing needles penetrate the clothing strip 20, wherein the ends of the needles facing away from the clothing tips rest on the underside of the flat rod 13 with electrical contact formation.
  • the flat bar 13 is electrically insulated from the two flexible sheets 12; the flexible bows are for this purpose made for example of plastic.
  • the voltage generator 41 is further connected via a line with a stationary sliding contact 43, which rests against the drive shaft 5 a of the only partially illustrated drum 5. About the drum shaft 5a and the walls of the drum 5, the generator 41 is electrically connected to the drum set 25.
  • a spark discharge can be generated from the tips 22 of the flat clothing 21 to the tips 26 of the drum assembly 25, which bridges the carding gap 6 between the tips 22, 26 and causes a short circuit in the circuit.
  • the discharge voltage is measured by a parallel to the transformer 41 connected voltmeter 49 and transmitted to an evaluation unit 50.
  • the evaluation unit 50 calculates, by means of a stored algorithm, the instantaneous distance ⁇ (carding gap) between the clothing tips 22, 26 which exists during the voltage or spark discharge.
  • this distance can be displayed, for example. If the carding gap ⁇ is too small, which causes a fear of a collision of the tips 22, 26, an optical and / or acoustic warning signal can be output via a signal device 53. Alternatively and / or additionally, the traveling lid arrangement 6 and / or the drum 5 stopped. Likewise, it may be provided that the evaluation unit 50, which may be designed as a microcomputer, outputs a control command to an actuator 51, which re-sets the flexible bend, which in turn affects the distance ⁇ of the tips 22, 26 (see also FIG. 3 ).
  • the carding nip ⁇ can be viewed from the side of the machine, so that an operator can also optically control the generation of spark and possibly use it for manually setting the carding gap ⁇ by means of the flexible bends 12.
  • FIG. 5 a simple measuring arrangement for generating the sparks and measuring the discharge voltage is shown.
  • 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 the clothing 21 via a stationary sliding contact 42.
  • a stationary sliding contact 43 which rests against the drive shaft 29 of the only partially illustrated drum 5, is grounded.
  • the capacitor 103 discharges, wherein the discharge voltage is measured by a voltage measuring arrangement 104, which has a high-impedance input.
  • FIG. 6 is the time course of the voltage applied to the tips 22 voltage shown (more precisely, the potential difference between the tips 22, 26), in which case a repetition sequence is selected from a plurality of successive rising and falling edges in the form of a sawtooth. This increases linearly from zero to the voltage U max , and then abruptly drops to zero. In this area A, in which no spark discharges occur, the actual distance ⁇ A (measuring distance) of the clothing tips 22, 26 is greater than the maximum measurable carding gap ⁇ MAX .
  • the measuring distance ⁇ B is between 0 and ⁇ MAX , so that spark discharges occur at a breakdown voltage of U E , ie the potential difference between the clothing tips 22, 26 is so great that a Spark 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.
  • the frequency of the sawtooth voltage is set so that it always - even at large instantaneous relative speeds between flat set 21 and drum set 25 - detects all possible peak and thus discharge positions.
  • the discharge voltage U E for subsequent electrical discharges (spark discharges) is substantially the same, provided that the distances to be measured are also identical.
  • the measuring distance ⁇ C is smaller than ⁇ B , so that the breakdown voltage U E , is smaller than the breakdown voltage U E in the region B. Therefore, the frequency of breakdowns or the occurrence of spark discharges in the region C is greater than in Area B.
  • a measuring arrangement is shown, with which a measurable plasma current is generated.
  • a voltage source 201 for generating a low voltage to a voltage regulator 202 is connected to the controllable input of the output of a switching unit 203 is connected.
  • the output of the voltage regulator 202 is connected to the input of a first Kommutationsblocks 204, whose other input is fed by a pulse shaper 207.
  • a second commutation block 205 also receives corresponding signals from the pulse shaper 207.
  • the second commutation block 205 is further connected to a signal shaper 206, which outputs a sawtooth-shaped voltage.
  • the respective output of the two commutation blocks 204, 205 is connected to a measuring resistor 208, which is connected between two inputs of the mentioned switching unit 203.
  • a measuring channel 209 is connected to one of these two inputs, with which the height of the low or low voltage for the maintenance of the plasma flow is measured.
  • a third input of the switching unit 203 is the voltage tap of an adjustable resistor 210, with which the desired plasma current is adjusted.
  • the operation of the circuit arrangement according to the FIG. 7 is as follows:
  • the two Kommutationsblöcke 204, 205 are controlled by the pulse shaper 207 alternately. If the commutation block 205 in the in FIG. 7 illustrated position is the sawtooth voltage from the signal shaper 206 between the sets of flat bar 13 and drum 5 at. If breakdown occurs, the voltage breaks, which is registered by the switching unit 203. This gives a signal to the pulse shaper 207, which now switches the two Kommutationsblöcke 204, 205 in the other switching state. Now the voltage from the voltage regulator 202 is applied to the measuring resistor 208 and is registered by the measuring channel 209. The magnitude of this voltage (the voltage for maintaining the plasma current across the clothing gap .delta.) Is determined by the switching unit 203, which processes the setpoint plasma current set at the resistor 210 for this purpose.
  • FIG. 8 a voltage-time diagram and a current-time diagram for the case of plasma generation for Kardierspaltbeées is reproduced.
  • a sawtooth-shaped voltage U is applied.
  • the areas A and D correspond to those in the FIG. 6 .
  • spark discharges are generated with the discharge current I E, B or I E , V caused.
  • the voltage is then adjusted in such a way to a voltage value U P, B or U P, C , that in each case a substantially constant plasma current I P flows.
  • FIGS. 9 and 10 an embodiment is shown, by means of which reference measurements can be made.
  • a reference electrode pair 71, 75 is mounted within a fiber guiding element 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 see FIG 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.
  • this opening 62 prevent fibers from entering the interior 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 successively in a line or offset (see the supervision according to the FIG. 10 ) can be arranged.
  • a closed space is defined by walls 65 and the removable cover 66 (shown in FIG. 9, in FIG. 10 decreased).
  • the reference electrode pair on the one hand a fixed electrode 71 which is arranged on an insulator 72 and an electrode tip 73 made of a platinum alloy, and on the other hand by hand at a distance from the electrode 71 adjustable electrode 75 with an electrode tip 76th also comprising a platinum alloy.
  • the electrode 75 is pivotally attached to a leg 79. The said distance is set by a leg 79 passing through the adjusting screw 77, which acts on the acted upon by a spring 78, pivotable electrode 75.
  • the electrode 75 is z. Example, electrically to the ground and the electrode 71 by means of a guided through an insulator 67 in the cover 66 cable 68 to a measuring unit or a voltmeter 49 (s. FIG. 4 ) connected.
  • the electrode tips 73 and 76 have the main geometry features of the tips 26 of the drum set 25 (radius R 1 , angle ⁇ 1 ) and the tips 22 of the flat clothing 21 (radius R 2 , angle ⁇ 2. ). These geometric properties have a direct effect on the corona effect and thus allow comparable results between the reference discharges between the electrodes 71, 75 on the one hand and the Me touchtladept between the tips of the flat clothing 21 and the drum set 25 on the other.
  • ⁇ v ⁇ comparison
  • the known distance between the reference electrodes 71, 75 and the comparable surface geometry of the reference electrodes 71, 75 is used.
  • 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.
  • Under Design geometries are to be understood in particular the values of the point angles of the sets 21, 25 and the values of the tip radii.
  • FIG. 11 is an example of an electromechanical solution for adjusting the distance of the reference electrode pair 71, 75 reproduced.
  • an electric motor 177 acts on the electrode 75.
  • the distance ⁇ V can also be adjusted during the carding operation to a new set desired spacing by the motor 177 is driven by a controller, not shown.
  • the distance between the reference electrodes 71, 75 is adjusted by means of piezoelectric components.
  • two piezoelectric, equal sized actuators 81 and 82 are arranged on the electrically non-conductive support plate 80.
  • the thermal expansion of the two actuators 81, 82 is compensated. If the two piezo actuators 81, 82 are subjected to the same control voltage in a parallel circuit with a reverse polarity, the distance ⁇ V of the two electrodes 71, 75 from each other during production to a new set desired spacing can be adjusted.
  • FIG. 13 Another embodiment of the invention is shown to measure the discharge voltage U E.
  • the flat bar 13 serves as a conductor, but between flat bar 13 and clothing strip 20 arranged surface element 30 which is at least partially formed electrically conductive on its underside, but has no electrical contact with the flat bar 13 at the top.
  • surface element 30 and clothing strips 20 shown in exploded view. When used in the machine these elements abut each other and are by means of brackets 16 (see FIG. 2 ) held together.
  • FIG. 14 a portion of a clothing strip 20 is shown from the side through which the clothing needles of the clothing 21 are pushed from above.
  • the clothing strip 20 is usually made of a textile or leather material.
  • the rear legs 23 of the clothing needles 21 bear against electrically conductive sections, the conductive zones 34 designated here as such, so that current can flow from the tips 22 of the clothing 21 to the conductive zones 34: the conductive zones 34 are embedded in the planar element 30, imprinted, glued or otherwise provided on the surface element 30.
  • FIGS. 15 and 16 show two different embodiments of surface elements 30 and 30 'from the bottom.
  • the embodiment of the FIG. 15 has three guide zones 31, 34, 37, which are arranged electrically isolated from one another in the longitudinal direction of the surface element 30. These guide zones 31, 34, 37 are connected via signal lines 32, 35, 38 with contacts 33, 36, 39 at the end faces of the surface element 30, which correspond to stationary, opposite sliding contacts. Each of these contacts 33, 36, 39 is connected to the voltmeter 49 (s. FIG. 4 ) to spatially resolved to detect the voltage discharges in the region of the respective guide zones 31, 34 and 37, respectively. This makes it possible, for example, to make statements about the state of the tips in the carding zones assigned to the various guiding zones.
  • the embodiment according to the FIG. 16 also offers the possibility of a spatially resolved measurement across the width of the surface element 30 and thus the clothing strip 20.
  • six guide zones are provided, with two guide zones 31 'and 34' and 37 'in the direction of movement of the flat bar 13 next to each other.
  • These paired guide zones 31 ', 34' and 37 ' are - as in the embodiment according to the FIG. 15 - Distributed over the length of the surface element 30 '.
  • This arrangement makes it possible to measure the voltage discharges in six different areas in a spatially resolved manner.
  • the arrangement of the lines 32 ', 35', 38 'and the contacts 33', 36 ', 39' at the end faces of the surface element 30 ' correspond to those of FIG. 15 , By the Arrangement according to FIG. 16 if necessary, an assessment of the state of the flexible sheet 12 (s. FIGS. 1 . 3 . 19 ) possible.
  • the frequency and / or the number and / or the type of discharges for the evaluation; the necessary counting or measuring devices are not shown in detail. For example, based on a statistical evaluation of the signals can be closed to the conditions in the carding, for example, on the fiber assignment. If necessary, this information can also be used to more accurately determine the clothing tip spacing ⁇ and / or the wear state of the clothings in different carding areas.
  • FIG. 17 an embodiment of the invention is shown to realize individual distance measurements between individual flat clothings 21 and the drum set 25.
  • FIG. 17 provided three stationary measuring points for measuring the discharge voltages, via the flexible sheet 12 (s. FIG. 1 ) are distributed and at each of which a sliding contact 44, 45, 46 with the respective just transported over the flat bar 13.
  • Each sliding contact detects only one flat bar 13.
  • Each successive flat bars 13 are in the region of the sliding contact 44 with i-1, i, i + 1, in the region of the sliding contact 45 with j-1, j, j + 1 and in the region of Sliding contacts 46 with k-1, k, k + 1 called.
  • the sliding contacts 44, 45, 46 of the three measuring points are connected via connecting lines to independent measuring channels, which are designated here by Roman numerals I, II and III and part of a measuring and evaluation unit 50. Alternatively, only one measuring channel is present, which commutatively processes the signals from the sliding contacts 44, 45, 46.
  • the sliding contacts 44, 45, 46 are - as based on the FIGS. 4 . 5 . 7 already explained - connected to voltage sources not shown here.
  • the execution according to the FIG. 17 also has two further measuring points 47, 48.
  • this is a non-contact detection (eg, inductive, optical, ultrasound, etc.) on the top of the revolving lid assembly 6 (measuring point 47), with a with "1" marked flat bar 13 is detected from the total number n of the flat bars by means of a sensor 91, which allows an assignment of the measured distances to the respective flat bars i, j, k.
  • a non-contact detection eg, inductive, optical, ultrasound, etc.
  • the further measuring point 48 with a non-contact measuring sensor 92 is provided in the region of the axis of rotation of the drum 5 and reports the instantaneous angular position of the drum 5 on the basis of a cam 5a placed on the axis 5b to the geometric inaccuracies of the drum outer surface (such as roundness error) from the using the measuring channels I, II and III to calculate distance measurements.
  • the distance ⁇ of the respective flat clothing 21 of each flat bar 13 from the drum set 25 can be determined with the aid of the voltage measured values (see FIG. FIG. 6 or FIG. 8 ) be determined.
  • FIG. 18 these detected values are shown in more detail, wherein on the y-axis for each flat bar k, k + 1, k + 2, ..., j, j + 1, j + 2, ..., i, i + 1, i + 2, ... the measured carding gap ⁇ is plotted as a function of time for the three measurement channels I, II and III.
  • the degree of wear of each individual flat garniture 21 or any damage thereto can also be determined. Also, in this way the tightening angle or inclination angle of the flat clothing 21 relative to the drum 5 (s. FIG. 2 ) are measured.
  • FIG. 19 a further embodiment is shown, in which case over almost the entire carding area, ie here over a measuring range with an angle ⁇ , the course of the carding gap ⁇ is measured by means of the measurements of the discharge voltages. At least one long sliding contact 144 stretches over this measuring range ⁇ , which comes into electrical contact along the upper side of a specially prepared reference flat bar 13 along the latter. Thus, the carding gap 6 can be measured over the entire path of this flat bar 13.
  • a spatial resolution of the Kardierspalt lies across the width of this flat bar 13, that is provided transversely to its direction of rotation.
  • a respective sliding contact provided, for this purpose, for example, a surface element 30 with three distributed over the width of guide zones 31, 34, 37 corresponding to FIG. 15 can be provided.
  • the contacting of these conductive zones can be realized for example via three adjacent sliding contacts, wherein in the FIG. 19 only such a sliding contact 144 is shown; are accordingly in the FIG. 19 However, three connecting lines are shown leading to a "measuring channel left", a "measuring channel center” or a "measuring channel right". Again, a commutating measuring channel can alternatively be provided.
  • the measuring points 47 and 48 with their sensors 91 and 92 correspond to those of FIG. 17 ,
  • the size of the carding gap 6 is plotted over the measuring range ⁇ for the three measuring channels.
  • These hypothetical curves would give a user of the card hints in which areas of the measuring range ⁇ of the carding nip ⁇ should be readjusted, in particular by replacing flat bars 13 and / or by readjustment of the flexible sheet 12 (s. FIGS. 1 and 3 ).
  • the present invention is not limited to the illustrated and described embodiments.
  • the distance measurement between the clothing tips 22, 26 of flat clothing 21 and sawtooth assembly 25 of a carding drum 5 has been described.
  • the described measuring principle is also for distance measurement between the shege leopardgarnituren the drum 5 and a breeze (see FIG. 1 ) transferable.
  • others are Possibilities for electrical contact formation possible, for example drum side by tapping on an annular flange of the drum 5 instead of the drum shaft.
  • a stationary busbar can be arranged at least on one end face, which is in sliding contact with the flat bar (in the embodiment according to FIGS FIG. 4 ) or with the contacts 33, 36, 39 and 33 ', 36' and 39 '(in the embodiments according to the FIGS. 15, 16 ) come.
  • sliding contacts instead of sliding contacts other voltage taps can also be used.
  • 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 spinning preparation machine, e.g. Carding, carding, cleaning or the like.
  • the tips (22, 26) of the trimmings are in this case made electrically conductive
  • a voltage source (41, 101, 201, 206) is connected to tips of at least one of the trimmings, and electrical voltages can be generated by applying a variable potential difference between the tips of the two trimmings ,
  • These give an indication of the current distance ( ⁇ ) and / or the distance to be set between the clothing tips and / or the degree of wear of at least one of the trimmings and / or the positioning of one clothing to the other clothing, in particular their inclination angle ( ⁇ ) to each other.
  • the invention relates to a corresponding non-contact measuring method.

Landscapes

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

Claims (37)

  1. Machine de préparation de filature, par exemple cardeuse, carde, débourroir ou analogue, comportant un dispositif pour la mesure et/ou le réglage de paramètres sans contact pour deux garnitures opposées (21, 25), caractérisée en ce que les pointes (22, 26) des garnitures (21, 25) sont conductrices de l'électricité, en ce qu'une source de tension (41; 101; 201, 206) est reliée à des pointes (22, 26) d'au moins une des garnitures (21, 25), et en ce que l'on peut produire, en appliquant une différence de potentiel variable entre des pointes (22, 26) des deux garnitures (21, 25), des décharges électriques qui fournissent une indication sur la distance actuelle (δ) et/ou la distance à régler entre les pointes de garnitures (22, 26) et/ou le degré d'usure d'au moins une des garnitures (21, 25) et/ou le positionnement d'une garniture (21) par rapport à l'autre garniture (25), en particulier leur angle d'inclinaison (Θ) l'une par rapport à l'autre.
  2. Machine selon la revendication précédente, caractérisée en ce qu'il est prévu une unité d'évaluation (50), qui permet de déterminer la distance (δ) entre les pointes de garnitures (22, 26) à partir de la fréquence et/ou du nombre et/ou de la nature enregistrés des décharges et/ou d'au moins une grandeur électrique relative à au moins une décharge électrique.
  3. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que la valeur de tension (UE) immédiatement avant la décharge électrique (décharge disruptive) peut être enregistrée par un appareil de mesure de la tension (49; 104; 209), dans laquelle cette valeur de tension correspond à une valeur associée à la plus petite distance (δ) des pointes de garnitures lors de la décharge disruptive.
  4. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que la source de tension (41; 101+102+103; 206) se présente sous la forme d'un générateur de tension (générateur d'impulsions) pour générer une tension variable, par exemple une tension en dents de scie ou une tension continue avec des pointes en dents de scie.
  5. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu une paire d'électrodes supplémentaire (71, 75) pour la décharge électrique comme unité de référence, dont la distance éventuellement variable est connue et qui présente aux pointes (73, 76) une géométrie de surface analogue à celle des pointes de garnitures (22, 26).
  6. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que la paire d'électrodes supplémentaire (71, 75) est disposée à l'extérieur de la zone de cardage de la machine de préparation de filature (1) se présentant sous la forme d'une cardeuse.
  7. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que la paire d'électrodes supplémentaire (71, 75) est disposée dans une chambre, dans laquelle il ne peut pénétrer essentiellement aucune fibre pendant le fonctionnement de la machine de préparation de filature (1).
  8. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que la paire d'électrodes supplémentaire (71, 75) est disposée dans une chambre, dans laquelle un courant d'air (L) est dirigé pendant le fonctionnement de la machine de préparation de filature (1).
  9. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que les deux garnitures (21, 25) ainsi que leur espace intermédiaire sont visibles pour un opérateur, de telle manière que les décharges électriques puissent être contrôlées visuellement.
  10. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une garniture (21) est la garniture du couvercle d'une cardeuse (1) et l'autre garniture (25) est la garniture de tambour associée.
  11. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que les deux garnitures (21, 25) tournent soit dans le même sens soit en sens contraire.
  12. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que les barres de couvercle (13) sont électriquement isolées par rapport aux deux arcs de glissement (12), sur lesquels les faces frontales des barres de couvercle (13) sont appliquées temporairement pendant une révolution.
  13. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que des différences de potentiel entre les garnitures (21, 25) peuvent être produites sur toute la largeur de cardage (B).
  14. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu chaque fois au moins un contact frottant (42, 43; 44, 45, 46; 144) pour la mise en contact sur les barres de couvercle (13) et/ou l'arbre de tambour (46), dans laquelle au moins un des contacts frottants (42, 43; 44, 45, 46; 144) est relié à une source de tension (41).
  15. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu plusieurs contacts frottants (43, 44, 45), qui ne sont pas en liaison électrique les uns avec les autres, le long de la course de cardage pour la mise en contact avec différentes barres de couvercle (13).
  16. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu au moins un contact frottant allongé (144) le long d'au moins une région partielle de la course de cardage, avec lequel au moins une barre de couvercle (13) est en contact électrique pendant le transport le long du tambour (5).
  17. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu, vus sur la largeur d'une barre de couvercle (13), plusieurs contacts frottants allongés (144), qui sont en contact électrique avec différentes zones électriquement séparées de la garniture (21) de l'au moins une barre de couvercle (13).
  18. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu entre une barre de couvercle (13) et une bande de garniture (20) au moins un élément plat (30) électriquement conducteur au moins par portions, qui est en contact électrique avec les extrémités de garnitures (23) situées à l'opposé des pointes de garnitures (22) et par lequel circule le courant de décharge apparaissant lors de la décharge électrique.
  19. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que l'au moins un élément plat (30) présente plusieurs zones conductrices (31, 32, 33; 31', 32', 33') électriquement isolées les unes des autres, qui sont réparties sur la longueur et/ou sur la largeur de la bande de garniture associée (20).
  20. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que l'on peut régler une différence de potentiel maximale selon la distance, qui dépasse la rigidité diélectrique de l'air, entre lesdites pointes (22, 26) des deux garnitures (21, 25) en fonction de la plage de mesure souhaitée, dans le domaine compris entre 1 000 et 10 000 V, de préférence entre 2 000 et 5 000 V, et de préférence encore entre 2 500 et 3 500 V.
  21. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que les garnitures (21, 25) et l'impédance de la source de tension sont accordées entre elles de telle manière que l'énergie de décharge pendant la mesure soit limitée à moins de 10 mJ, de préférence à moins de 5 mJ, et de préférence encore à moins de 1 mJ.
  22. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que les garnitures (21, 25) sont disposées l'une par rapport à l'autre et ladite différence de potentiel peut être appliquée par une source de tension (201) de telle manière qu'il se forme un plasma entre les garnitures (21, 25) pendant une courte durée à la suite d'une décharge de tension.
  23. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que l'on peut enregistrer la tension pour le maintien d'un courant de plasma ou la tension d'extinction du plasma (UP).
  24. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que l'unité d'évaluation (50) pour la détermination de la distance (δ) des garnitures (21, 25) ou pour l'évaluation de la décharge électrique est reliée à des moyens de réglage (51) pour le réglage de la distance (δ) des deux garnitures (21, 25) et peut transmettre à celles-ci une instruction de réglage de la distance.
  25. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que, en cas de descente en dessous d'une distance prédéterminée (δ) des pointes de garnitures (22, 26), on peut émettre un avertissement de collision au moyen d'un dispositif de signalisation (53) et/ou on peut prendre une mesure appropriée, pour empêcher une collision.
  26. Procédé de mesure sans contact dans la région de deux garnitures opposées (21, 25) dans une machine de préparation de filature, en particulier une cardeuse (1), un débourroir ou analogue, dans lequel les pointes de garnitures (22, 26) sont constituées d'un matériau électriquement conducteur, caractérisé en ce que l'on produit une différence de potentiel entre les pointes (22, 26) des deux garnitures (21, 25), afin de provoquer une décharge électrique entre les pointes (22, 26), dans lequel on détermine, à partir de la fréquence et/ou du nombre et/ou de la nature des décharges et/ou d'au moins une grandeur électrique relative aux décharges électriques, la distance (δ) entre au moins une partie des pointes de garnitures (22, 26) et/ou le degré d'usure d'au moins une des garnitures (21, 25) et/ou le positionnement d'une première garniture (21) par rapport à l'autre garniture (25), en particulier leur angle d'inclinaison (Θ) l'une par rapport à l'autre.
  27. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu une paire d'électrodes supplémentaire (71, 75), dont on connaît la distance (δV) éventuellement variable entre les pointes, et qui se trouve dans le même microclimat de fonctionnement que lesdites garnitures (21, 25), dans lequel on utilise cette paire d'électrodes supplémentaire (71, 75) comme unité de référence pour en déduire les influences du microclimat de fonctionnement sur les valeurs de mesure des décharges électriques entre les garnitures (21, 25).
  28. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce qu'il est prévu une paire d'électrodes supplémentaire (71, 75), dont on connaît la distance (δV) éventuellement variable entre les pointes et qui présente aux pointes (73, 76) une géométrie de surface analogue à celle desdites garnitures (21, 25), dans lequel on utilise cette paire d'électrodes supplémentaire (71, 75) comme unité de référence pour tenir compte des influences de la géométrie de surface sur les valeurs de mesure des décharges électriques entre les garnitures (21, 25).
  29. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce que l'on utilise comme tension une séquence de répétition composée de plusieurs flancs ascendants et descendant successifs, dans lequel on adapte la fréquence de cette séquence de répétition à la vitesse de rotation d'une ou des deux garnitures (21, 25).
  30. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce que l'on utilise comme tension une séquence de répétition composée de plusieurs flancs ascendants et descendants successifs, dans lequel on adapte la fréquence de cette séquence de répétition au nombre de pointes de garnitures (22, 26).
  31. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce que l'on mesure la valeur de tension (UE) immédiatement avant une décharge de tension.
  32. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce qu'à la suite d'une décharge de tension, on produit un plasma pendant une durée de l'ordre des millisecondes ou moins dans l'espace intermédiaire entre les deux garnitures, dans lequel on détermine ou on règle une tension de plasma pour le maintien d'un courant de plasma ou, à partir de la tension d'extinction, la distance entre les pointes de garnitures (22, 26).
  33. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce que l'on opère, par des calculs statistiques, une séparation de valeurs de mesure lors de décharges en présence de fibres et de valeurs de mesure lors d'une décharge dans l'air exempt de fibres.
  34. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce que, en vue du réglage de la distance des pointes de garnitures (22, 26) sur toute la largeur de la garniture de couvercle (21), on règle un premier côté de la garniture de couvercle (21) de telle manière que la tension mesurée (UE) corresponde à une distance des garnitures souhaitée (δ) de ce premier côté immédiatement avant les décharges électriques, et en ce que l'on abaisse et éventuellement on relève ensuite le deuxième côté jusqu'à ce que la même tension (UE) et dès lors la même distance (δ) des garnitures que sur le premier côté soit présente sur ce deuxième côté.
  35. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce que l'on émet un avertissement de collision, sur la base de la tension déterminée (UE), en cas de descente en dessous d'une distance prédéterminée (δ) des pointes de garnitures (22, 26).
  36. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce que l'on exploite des signaux de prises électriques associées à un couvercle, électriquement isolées les unes des autres, qui sont associées à des zones de cardage différentes du couvercle, pour apprécier l'état des pointes dans les différentes zones de cardage.
  37. Procédé selon l'une quelconque des revendications de procédé précédentes, caractérisé en ce que l'on exploite des signaux de prises électriques associées à un couvercle, électriquement isolées les unes des autres, qui sont associées à des zones de cardage différentes du couvercle disposées les unes derrière les autres dans la direction périphérique, pour apprécier l'état des arcs flexibles (12).
EP06721951A 2005-05-11 2006-05-09 Machine de preparation de filature et procede de mesure sans contact Active EP1880046B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8332005 2005-05-11
PCT/CH2006/000249 WO2006119658A1 (fr) 2005-05-11 2006-05-09 Machine de preparation de filature et procede de mesure sans contact

Publications (2)

Publication Number Publication Date
EP1880046A1 EP1880046A1 (fr) 2008-01-23
EP1880046B1 true EP1880046B1 (fr) 2010-01-27

Family

ID=36603498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06721951A Active EP1880046B1 (fr) 2005-05-11 2006-05-09 Machine de preparation de filature et procede de mesure sans contact

Country Status (4)

Country Link
EP (1) EP1880046B1 (fr)
CN (1) CN101175877B (fr)
DE (1) DE502006006043D1 (fr)
WO (1) WO2006119658A1 (fr)

Families Citing this family (11)

* 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.
CN101563488B (zh) * 2006-11-10 2011-05-25 里特机械公司 纺织机及无接触测量方法
CH704982A1 (de) * 2011-05-20 2012-11-30 Rieter Ag Maschf Vorrichtung zum Ausscheiden von Schmutz und Kurzfasern an einer Karde.
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
DE102017101863A1 (de) * 2017-01-31 2018-08-02 TRüTZSCHLER GMBH & CO. KG Detektionsvorrichtung an einer Spinnereivorbereitungsmaschine und dafür vorgesehene Deckelstabgarnitur
DE102017101865A1 (de) * 2017-01-31 2018-08-02 TRüTZSCHLER GMBH & CO. KG Karde mit einer Vorrichtung zur Einstellung des Kardierspaltes
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
DE102019110654A1 (de) * 2019-04-25 2020-10-29 TRüTZSCHLER GMBH & CO. KG Verfahren und Textilmaschine zur automatischen Einstellung und Konstanthaltung eines definierten Abstandes zwischen einer drehbar gelagerten Trommel und einem weiteren Bauteil
DE102019110699A1 (de) * 2019-04-25 2020-10-29 Trützschler GmbH & Co Kommanditgesellschaft Karde mit einer Vorrichtung zur Einstellung des Kardierspaltes
CN110470330B (zh) * 2019-08-27 2021-07-20 南京六合高新建设发展有限公司 一种无极转角传感器
CH720172A1 (de) * 2022-10-27 2024-05-15 Rieter Ag Maschf Vorrichtung und Verfahren zur Einstellung eines Kardierspaltes einer Karde

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826542C2 (de) * 1998-06-15 2001-05-31 Graf & Co Ag Kratzenbeschlag für Karden und/oder Krempelmaschinen
DE10037710A1 (de) * 2000-08-02 2002-02-14 Rieter Ag Maschf Vorrichtung zum Einstellen des Arbeitsspaltes zwischen den Spitzen von Deckelgarnituren und den Spitzen der Trommelgarnitur einer Karde
DE10046916A1 (de) * 2000-09-21 2002-04-11 Rieter Ag Maschf Verfahren und Vorrichtung zum Einstellen des Arbeitsspaltes zwischen den Spitzen von Deckelgarnituren und den Spitzen der Trommelgarnitur einer Karde
DE10053139B4 (de) * 2000-10-26 2018-08-02 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Karde, Reiniger o.dgl., zur Einstellung von Abständen an Garnituren
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

Also Published As

Publication number Publication date
CN101175877A (zh) 2008-05-07
EP1880046A1 (fr) 2008-01-23
WO2006119658A1 (fr) 2006-11-16
CN101175877B (zh) 2012-10-17
DE502006006043D1 (de) 2010-03-18

Similar Documents

Publication Publication Date Title
EP1880046B1 (fr) Machine de preparation de filature et procede de mesure sans contact
EP1783252B1 (fr) Dipositif et méthode de séparation d'un faisceau de fibres de carbone
DE2618745C3 (de) Verfahren und Vorrichtung zur Herstellung eines Faservlieses aus Kunststoff-Fasern
EP2097564B1 (fr) Machine textile et procédé de mesure sans contact
WO2006105676A1 (fr) Dispositif et procede pour controler un echantillon solide oblong
WO2006119655A1 (fr) Procede de mesure sans contact et dispositif integre dans une machine textile
DE19633256C1 (de) Vorrichtung zum Einstellen der Zugspannung eines Fadens bei dessen Ab- oder Aufwicklung von einer bzw. auf eine Spule
DE102006033699B4 (de) Drahtsäge mit kontrollierbarem Drahtfeld
WO2008144946A1 (fr) Procédé et dispositif pour cintrer des sections de tôles
EP2743385A1 (fr) Procédé et dispositif de surveillance de contacts d'un composant rotatif d'une machine textile
DE2753711C2 (fr)
WO2002016683A2 (fr) Procede de mise en fonctionnement d'un dispositif d'etirage, et dispositif d'etirage y relatif
EP0532865A1 (fr) Dispositif pour couper une bande textile, en particulier une bande à étiquettes
DE102008047713B4 (de) Verfahren und Vorrichtung zum Aufbringen von Puder auf einen bedruckten Bogen oder eine bedruckte Bahn
EP3610058B1 (fr) Dispositif d'alimentation
EP3583257B1 (fr) Procédé de fonctionnement d'une carde, et carde
DE10027442B4 (de) Verfahren und Vorrichtung zur Detektion von Bahnrissen
EP3959365A1 (fr) Dispositif et procédé de réglage d'au moins un cintre souple concentriquement par rapport à un tambour garni monté à rotation d'une cardeuse
EP1640485A2 (fr) Dispositif pour déterminer la tension du fil d'un fil individuel d'une nappe de fils dans le traitement de textile
WO2014020119A1 (fr) Procédé d'évaluation et capteur de fil
EP3610060B1 (fr) Auge d'alimentation et dispositif d'alimentation pourvu d'une auge d'alimentation
WO1998018985A1 (fr) Organe de mesure d'entree pour dispositif d'etirage
CH713690A1 (de) Speisemulde und Speisevorrichtung.
EP4227455A1 (fr) Carde
DE2224577A1 (de) Verfahren und vorrichtung zum feststellen von fehlern bei textilmaterialien

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: 20071023

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE IT LI

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): CH DE IT LI

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 502006006043

Country of ref document: DE

Date of ref document: 20100318

Kind code of ref document: P

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: TRUETZSCHLER GMBH & CO. KG

Effective date: 20100823

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20100525

Year of fee payment: 5

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100127

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20110801

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R100

Ref document number: 502006006043

Country of ref document: DE

Effective date: 20110801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110531

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230519

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230519

Year of fee payment: 18