EP1300494A2 - Surveillance de la qualité de la nappe dans la cardeuse - Google Patents

Surveillance de la qualité de la nappe dans la cardeuse Download PDF

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Publication number
EP1300494A2
EP1300494A2 EP02028598A EP02028598A EP1300494A2 EP 1300494 A2 EP1300494 A2 EP 1300494A2 EP 02028598 A EP02028598 A EP 02028598A EP 02028598 A EP02028598 A EP 02028598A EP 1300494 A2 EP1300494 A2 EP 1300494A2
Authority
EP
European Patent Office
Prior art keywords
card
drum
roller
working
working width
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02028598A
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German (de)
English (en)
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EP1300494B1 (fr
EP1300494A3 (fr
Inventor
Olivier Wüst
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
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to EP05020314A priority Critical patent/EP1612303A3/fr
Priority to EP05020313A priority patent/EP1612302B1/fr
Publication of EP1300494A2 publication Critical patent/EP1300494A2/fr
Publication of EP1300494A3 publication Critical patent/EP1300494A3/fr
Application granted granted Critical
Publication of EP1300494B1 publication Critical patent/EP1300494B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • D01G15/32—Framework; Casings; Coverings
    • 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 method and a device for monitoring the fleece quality in the card, especially but not exclusively on the card Customer.
  • card also includes “card”.
  • Scheinblin (e.g. in US-B-4953265 / EP 331 039) has a nit sensor on Customers described.
  • the sensor according to Scheinblin includes a housing that is extends essentially over the working width of the machine, the housing with Window is provided through which individual photo sensors cover the customer surface "watch". These photo sensors each deliver an output signal, which is as a function of time depending on the changing on which each photo sensor, light intensity changes.
  • the evaluation is designed to deliver the (at least quasi) continuous signal from everyone Evaluate the photo sensor.
  • the present invention provides an optoelectronic device for monitoring the fleece quality in a running textile machine ("on-line"), especially in one Card, in front.
  • the device is preferably a rotatably mounted, garnished Assigned roller. This roller is preferably the customer of the card, could but also for example the carding roller.
  • the device is assigned to an area of the roller where (during the processing of fibers) a fleece is not transported Roll formwork is provided.
  • the device is then preferably with a such a distance from the outer surface of the roller that the quality of the nonwoven is not is influenced, especially impaired, by the facility itself.
  • the above-mentioned area lies below the take-off roller, upstream from the point where the fleece passes onto the take-off roller.
  • Pickup roller may be the area on the bottom of the roller, upstream from the point where the fleece separates from the clothing of the take-off roller.
  • the device is assigned to an element that a function regardless of the facility (e.g. a management or control function) in connection with the processing or transport of the fleece.
  • the element can e.g. perform an air or fiber guidance function in the area where the fleece is delivered by the customer to the take-off roller.
  • a card which has at least one drum is provided, wherein a cylindrical surface of the drum is provided with a clothing is or can be provided, which defines the working width of the card.
  • the card includes both a feed means for evenly feeding the drum carding fibers over the entire working width, as well as a removal agent for Even removal of carded fibers across the entire working width. It is also a cover assembly for carding fibers on the drum over the whole working width available.
  • the card is characterized in that the Drum diameter between 700 mm and 1000 mm e.g. between 700 mm and Measures 900 mm. This diameter can advantageously be between 750 and 850 mm to get voted.
  • the working width is preferably more than 1300 mm, e.g. 1500 mm.
  • the invention provides a card, in particular a card with a working width greater than 1000 mm, with the card working elements (e.g. rotatably mounted rollers), drive units (e.g. electric motors) and one Sheathing comprises, characterized in that the drive units in are essentially housed in an area within the vertical Side planes of the working width, and that transmission elements (e.g. belts or gears) of the drive units between the working elements and the Sheathing are performed.
  • the transmission elements can be among several "Drive levels” or “Transmission levels” can be divided.
  • the invention provides a card, in particular a card a working width greater than 1000 mm, characterized in that a Outlet and / or an inlet module is provided which in (about) a pivot axis the working position opposite the drum, or away from this position, adjusted can be.
  • the invention provides a card, in particular a card Card with a working width greater than 1000 mm, characterized in that at least one roller module is provided and the one module guide in the card is installed to guide the module into or out of a standby position.
  • the standby position can be selected so that the module is on in this position the machine frame is attached and then brought into a working position can be.
  • Fig. 1 there is a known known revolving flat card 1, e.g. the card C51 the Applicant, shown schematically.
  • the one supplied by the flake feed Fiber material is fed into the filling shaft 2 in the form of flakes a licker-in 3 (also called breeze) as a wadding template, one Drum 4 (also called drum) passed and through the cooperation of Drum with a revolving lid assembly 5 further dissolved and cleaned. It forms there is a layer of fibers on the garnished drum surface.
  • the lid of the Units 5 are by a suitable drive via pulleys 6, a along the closed path (in the same direction or opposite to the direction of rotation of the Drum).
  • Card 1 Fibers from the layer on the drum Taken from a garnished customer 7 and in one of different Rolling existing outlet section 8 transformed into a sliver 9.
  • This Card sliver 9 is transferred from a sliver holder 10 into a transport can 11 cycloidal turns.
  • Card 1 has its own programmable controller 12 and it is also a suitable one "User interface" (e.g. a keyboard or a display) 21 for the input of Data and / or the release of status reports provided.
  • Card 1 is with a casing, e.g. according to US-B-5419016, provided, but not specifically in Fig. 1 is indicated because it is not essential for the present invention plays.
  • Fig. 2 shows on a larger scale part of the customer 7, the curve 7A shows the lateral surface of the clothing tips.
  • This figure also shows the Take-off roller 13 (also called a doctor roller) and take-off rollers 14, 15 of the preferred arrangement of an outlet section 8. The directions of rotation of these rollers are each indicated by arrows. The arrangement corresponds approximately to that in DE-Gbm-297 11 657 was shown.
  • a fleece guide element 16 is in the space between the customer 7, Removal roller 13 and pair of draw rollers 14, 15 are provided.
  • the guide element 16 comprises at least a first (formwork) surface 17 in the vicinity of the lateral surface 7A and a second (fleece guide) surface 18 below the take-off roller 13.
  • the surfaces 17, 18 can together form a "nose" 19 (indicated by dashed lines) in the gusset gap Form rollers.
  • the surfaces 17, 18 can also be part of a hollow profile, which is shown in FIG. 2 is indicated by the dashed connecting lines.
  • the set (not special shown) of the customer transports the nonwoven and thereby tears air out of the Environment with.
  • the fiber / air flow is formed in the vicinity of the transfer area out of the customer and take-off roller through the surface 17 in this area.
  • the Distance also called “working gap", not specifically indicated in Fig. 2
  • the Distance between the Surface 17 and the outer surface 7A is small, e.g. at the narrowest point in the field of Nose 19 e.g. in the order of 4 mm.
  • Below the element 16 is the Lateral surface 7A of the vicinity of the customer 7 (within the aforementioned, not sheath shown) open, i.e. the lateral surface area below the element 16 is not provided with any formwork.
  • Fig. 3A now shows a first embodiment of the invention, the already in Connection with Fig. 2 described parts with the same reference numerals are designated.
  • Fig. 3A is a fleece monitoring device 20A below the Element 16 provided.
  • the device 20A comprises a housing 22 for a optoelectronic device, here schematically by a light-collecting optics 23 and a photosensor system 24 is shown, on which the light collected by the optics 23 incident. Suitable optoelectronic devices are explained in more detail below, Fig. 3A but deals more with the overall arrangement.
  • the front of the housing 22 is provided with a translucent window 25 through which the device can "observe" predetermined spot 26 on the lateral surface 7A.
  • the optics 23 is like this designed that the spot 26 on the beam path 27 indicated by dashed lines on the Photosensor 24 is shown.
  • Device 20A also includes a light source (not shown) for exposure of the spot 26 with light, which is partly reflected in the optics 23.
  • the facility but does not differ significantly from the aforementioned in this respect US-B-4953265 known arrangement, which is why the light source is not shown in the figures is shown.
  • the light source can be above, below or next to the device 23, 24 to be ordered.
  • For a given intensity of the spot 26 Light depends on the amount of the remitted light collected by the optics 23 current "content" of the spot 26. This "content" depends on its part (under other) from the nature of the nonwoven part, which is currently in the stain located.
  • the housing 22 is mounted in the machine frame (not shown) such that the stain 26 is in the above-mentioned area below the element 16, where the outer surface 7A has no casing.
  • the carrier (not shown) for the housing is also arranged relative to the customer so that a minimum distance S between the housing 22 and the outer surface 7A remains free.
  • This distance S is so large chosen that the presence of the housing 22 does not affect the Fleece transport exercises.
  • the distance S is expediently so large that the housing 22 also has no significant influence on the air flowing to the lateral surface 7A exercises.
  • the monitoring device 20A is so shown in FIG Machine assembled that it does not affect the technology of fiber processing exercise, especially not cause impairment.
  • the distance S is at least 20 mm.
  • the converging lens can do that itself Form "window" of the device, or (and preferably) a separate window 25 be placed in front of the lens. Larger lenses have the advantage of being there adhesive parts, e.g. Fibers or dust particles, a smaller interference on the Exercise image quality than with smaller lenses.
  • the element 16 is to be formed as a hollow profile are, which is why the corresponding dashed lines according to FIG. 3A through solid lines have been replaced.
  • the hollow profile 16 now forms the housing for the optoelectronic device, which in turn has optics 23A and sensors 24A includes.
  • the surface 17 now forms the front of the housing and is with a provided translucent window 28 through which the device marks 29 can observe the lateral surface 7A.
  • the spot 29 should correspond to the spot 26 be the same size, since this size is the size of the one to be determined in the fleece Form depends and the two alternative arrangements the same form in the fleece should find out.
  • the distance (not indicated) between the optics 23A and the spot 29 is much smaller than the corresponding distance in the arrangement according to FIG. 3A, can be in the optics 23A with a smaller lens diameter (e.g. of approx. 10 mm.) can be worked.
  • the "cone" 30 in Fig. 3B is correspondingly smaller than that 3A and window 28 (FIG. 3B) is smaller than window 25 (FIG. 3A).
  • the required light source is also not shown in Fig. 3B, the Description of the light source for the embodiment according to FIG. 3A also for the embodiment 3B applies.
  • FIG. 4A shows the housing 22 viewed from the pickup 7. Since the arrangement for 3B is effectively the same, no special representation for the latter embodiment shown, but it is in Fig. 4A after the reference numerals for Fig. 3A, in parentheses the reference numerals for the corresponding parts of Fig. 3B been set.
  • the elongated housing 22 (16) extends substantially across the entire working width AB of the card, i.e. over the entire width of the garnished surface of the Buyer 7.
  • This working width AB is normally about 1000 mm. in which Cards and cards with larger working widths (e.g. 1500 mm. Or even more) are known.
  • Such a wide card is shown in particular in EP-A-866 153 and the corresponding description is hereby an integral part of included this description.
  • the housing 22 (16) is provided with a plurality of windows 25 (28), each window 22 or 28 is assigned to a respective device 23, 24 (23A, 24A). So it won't scanned across the entire working width AB, but only at several predetermined ones Test centers that are distributed over the working width (preferably symmetrically). It could of course still have a single window (not shown) in housing 22 (16) be provided.
  • the number of inspection bodies are not limited to four (as shown) limited. The suitable number depends on the working width AB as well on the required information content of the surveillance. especially the Marginal zones can be disregarded.
  • FIG. 4B shows a modification of the arrangement according to FIG. 4A, after which a (opposite the housing 22) relatively short housing 22A with a single window 25 (and a single optoelectronic device, not visible in Fig. 4B) back and forth over the Working width AB is "changed", as indicated by the double arrow.
  • the purpose is (at least) one guide rod 31 in the machine frame (not shown) permanently mounted, whereby a drive (not shown, e.g. by means of a cable) is provided must be to the housing 22A at an appropriate linear speed of To move rod 31 along.
  • a drive not shown, e.g. by means of a cable
  • FIG. 5 shows a further modification of the embodiment according to FIG. 3A (for the The arrangement according to FIG. 3B is not suitable, but in this case also not necessary).
  • the The front 32 of the housing 22B is curved (likewise the window 25, of course) and the housing is supported by a pivot axis 33 which is not in the machine frame shown) is rotatably mounted.
  • the axis 33 can thus be rotated around the Front 32 to move along a curved path 34 between an operating position (already described and shown again in FIG. 5) and one Maintenance point, where the window 25 on a cleaning device (schematically with 35 indicated). By touching the window 25 with the device 35 dust and dirt is wiped away from the window.
  • the front 32 lies preferably in an imaginary cylinder, the longitudinal axis of which corresponds to the length of the The axis of rotation of the housing 22B coincides.
  • the pivotability of the device between an operating position and a "Standby position" is also a valuable one Measure if there is no automatic cleaning of the front (or parts of which). Because of the small distance to the customer, it usually does not possible to clean the window 25 or the optics while the device is in the Operating position. Such cleaning will, however, in most cases prove essential.
  • the cleaning can be done in the standby point, e.g. manual cleaning can be performed, with access to the Readiness point must be guaranteed.
  • a suitable solution will be described below. The cleaning could be done using blown air, at most, even in the operating position, with the risk of a malfunction of the technology must be accepted.
  • FIGS. 5A, B and C show schematically further cleaning variants.
  • Figure 5A shows part of a "measuring bar" 22 (similar to the arrangement of FIG. 4A) a single window 25 in the bar part shown.
  • the top 500 of the bar In this case, 22 carries a carriage or carriage 502, which by a suitable means (not shown) can be moved back and forth in the longitudinal direction of the bar.
  • the carriage or carriage 502 is provided with a cleaning element 504, e.g. in the shape of a brush or a wiper (similar to a wiper for a Automobile). As the carriage or carriage 502 reciprocates, the element 502 wipes it Window 25 and any other window that is within its traversing stroke.
  • the variant according to FIG. 5B comprises two channels 506, 508 above and below the Measuring bar 22. These channels 506, 508 extend in the longitudinal direction of the Bar. There are two nozzles or tubes 510, 512 for each window 25 provided, which are each connected to a channel 506, 508. Channels 506, 508 can now be designed as suction channels, whereby the air flows in the Area of each window. This is intended to contaminate the Window can be prevented. Alternatively, channels 506, 508 can be blow channels be carried out. These options can be combined with each other the use of compressed air can be limited to a period of time if no fiber material is processed.
  • the variant according to FIG. 5C comprises a cloth 513 which is secured against the by means of a “rope” 514 Effect of a spring 516 by means of a piston-cylinder unit 518 upwards is pulled. When the unit 518 is no longer supplied with compressed air, it pulls Spring 516 the cloth down over the window 25. Pressing the Cleaning cloth could be done by an electric motor.
  • Fig. 6 shows schematically the example of the spot 26 and the device 20A, the Representation can be easily adapted for the spot 29 and the device 20B can, so that a repetition for the alternative arrangement is dispensed with.
  • the optics 23 here comprise a single converging lens 36 with a Diameter D, although of course a more complex optic could be used.
  • On Photosensitive element 37 converts the incident light energy into electrical Energy and forwards a corresponding signal to an evaluation 38.
  • the Element 37 and the evaluation 38 represent parts of the aforementioned “photosensor technology” 24
  • the evaluation 38 can be connected to the controller 12 (FIG. 1), at most, even for bidirectional signal exchange.
  • the controller 12 can a display 39 and / or an actuator 40 are connected, the actuator e.g. according to EP-A-801158, EP-A-810309 or DE-A-3702588.
  • the spot 26 creates an image spot 41 with a on the photo element 37 Diameter d1.
  • the ratio d / d1 depends on the distance L between the spot 26 and the element 37 as well as the design (in particular the focal length) and the Position of the optics 23.
  • the optics 23 are preferably positioned such that the Spot 26 and the image spot 41 lie essentially in the axis of the optics.
  • the The device 20A is then preferably positioned in this way (opposite the roller 7), that the spot 26 is "at the height" of the fleece transported by the clothing, i.e. the optics 23 is rather on the fleece than e.g. on the underlying cylindrical surface the roller 7 focused.
  • the light source (not shown) can be arranged that the emitted light is concentrated on the spot 26 or it may be the emitted Scatter light enough to encompass the spot 26 in the scatter area.
  • the "condition" of the working elements in particular the card clothing and the mode of operation of carding parameters of the card, indirectly monitored.
  • the meaning of this condition is e.g. from the professional article "Effects of Mechanical Cleaning on Cotton Fibers; Part III, Effects of Card Wire Condition on White Specks "in the Textile Research Journal, 67 (12), 857-865 (1997) seen.
  • the fleece quality can be displayed according to FIG. 6, so that the Operating personnel can take measures at a suitable time, and / or it can intervene directly by means of a controlled actuator 40 become.
  • the proposed monitoring is based on the fact that changes in the Carding parameters or changes in the state of the work elements (sooner or later) in changes in the quality of the nonwoven produced or in changes in one corresponding quality indicator.
  • the optimal design of the monitoring device depends on the required "Determination” in pursuing these goals depends on what is ultimately from the end user must be defined as a function of the monitoring costs. If, e.g. each Individual event should be detected early (automatically), the fleece must be over its entire breadth, be continuously monitored. If it is enough, the Track the effects of normal wear and tear and only "bad" Damage can be found, few devices can be distributed across the width provide, as they have already been described with reference to Figure 4A, these devices preferably in continuous operation (during the processing of fibers). If it turns out to be unnecessary to detect damage (individual events), At most, it is sufficient to periodically check the current status of the work elements check so that (e.g.) the equipment can be carried from card to card. in the latter case should ensure the simple installation or removal of the facility become. In this context, it is particularly important that the establishment does not affect the technology of the machine, such an influence is also undesirable when monitoring is used continuously.
  • Such monitoring focuses on the detection of predetermined "single bodies" in the fiber flow through the observed (each) spot.
  • a single body can form a coherent group of fibers (e.g. a nit) or a foreign particle (trash including shell parts with attached fibers).
  • the predetermined body must of course be based on it (In) ability to reflect light, recognizable against the background brightness his.
  • Photo sensors which can be directly coupled to the signal evaluation or memory elements can be provided in between.
  • the photo sensors form a "camera” and the evaluation as Image processing can be designed.
  • the "condition" of a set depends not only on signs of wear and tear "Accidents". For example Particles trapped between the clothing tips so that they get caught in the clothing. If such particles from the Monitoring are detected, they can be “counted” several times and the Falsify results.
  • the clothing spaces or grooves can but also with (fiber) material, which changes with time Background brightness causes the evaluation of the output signal from the Surveillance could also falsify.
  • the "condition" of the trimmings in the broadest Senses also include their mutual attitudes. Monitoring should if possible can also detect incorrect settings, e.g. if the working distance the cover set on one side of the card is larger than on the other side. The distribution of the test centers should be chosen accordingly.
  • the basic brightness can either be averaged between those to be detected Individual objects (e.g. nits) existing brightness values can be determined or by a calibration run, like the one in connection with stuck particles was mentioned.
  • Individual objects e.g. nits
  • existing brightness values can be determined or by a calibration run, like the one in connection with stuck particles was mentioned.
  • a simple evaluation consists in measuring the light intensity with a Compare switching threshold.
  • the switching threshold can, at least partially, to the Basic brightness can be adjusted. But the basic brightness exceeds one maintenance value can be output.
  • the preferred arrangement is based on a simple evaluation. There are e.g. the Number of signals exceeding the switching threshold determined and as "key figure" spent, i.e. no steps are taken to differentiate between Distinguish disruptive particles. Reliable results from such a number Information about the "condition of the card”.
  • the key figure represents a quality parameter which is independent of an absolute value. If the threshold value is exceeded or Call out below to act. The course of the values of this key figure above the time provides a reliable indication of changes in condition in a card and it is also possible to combine the key figures of different cards compare and draw conclusions, at least if the same card settings can be used in the same card line.
  • the basic brightness can either be averaged between the nits existing brightness values or can be determined by a calibration run. With the Changes during production cannot be recorded in the calibration run. On the other hand, this is simpler in terms of signaling, since none during production additional signal processing to determine the basic brightness is required.
  • the adjustment of the switching threshold to the basic brightness is up to a certain point Degrees possible. If the difference between basic brightness and nits is too small this method also fails. Then, however, the customer is so strong soiled that cleaning is inevitable anyway. If the value exceeds the Basic brightness a certain value, so a maintenance warning can be issued become.
  • each window there is a respective strip on the outer surface of the customer observed. This is done e.g. by means of a photodiode array that has 10 to 12 photodiodes may include. This results in a strip width of approx. 20 mm, for example on the roll surface.
  • the preferred evaluation comprises averaging over a number of preferably all photodiodes of an array with a predetermined time constant e.g. longer than 5 Minutes.
  • a comparison threshold is formed from the mean.
  • the optimal location the threshold compared to the mean can be determined empirically. she lies preferably a certain percentage (e.g. about 50%) higher than that Average.
  • the photodiode voltage of each individual diode is with the threshold compared, a digital pulse being generated when the threshold is exceeded (cf. Fig. 7). If the mean is too high, a maintenance warning can be issued become.
  • a processor is preferably used as the bar calculator 54 (FIG. 8) is powerful enough to run the pulses of all (five) observation units simultaneously capture. Units of. Can be used as the basis for the evaluation. serve for approx. 5 min. after every 5 minutes the counting results of each measuring point are shown together with the in same time produced weight stored in memory. After this A new "current value" can be calculated in the smallest unit of time of 5 minutes (see below). So that this value can often be recalculated and so too is really up to date, this time should not be chosen too long. On the other hand, should this time should not be made so short that the determined values due to the static particle distribution fluctuate very strongly. For the present application a value of 5 minutes seems reasonable. So many of the last 5 min results in a ring buffer can be saved as required for further evaluations.
  • the 5 min results can be combined into larger blocks (e.g. 8 h blocks) in order to Save space.
  • a result referred to as the "current value" can automatically turn on with every change the machine control system can be supplied for display. It is e.g. the sum of the last 12 complete 5 min pieces of all measuring points, extrapolated to the whole Machine width and based on the weight produced. In the same way the averages over the last shift, the last 8 hours, the last day (0:00 to 24:00), the last 7 days and the last 30 days and are transmitted on demand. For each measuring point, the chronological development over the last 90 days (1 base per 8 hours) can be called up can.
  • the cross distribution can be queried for each of the last 90 days.
  • the curve can either be a linear interpolation or, depending on the possibilities of the computer, with a square or cubic "least square" approximation being represented.
  • an analysis can be carried out at each measuring point to determine in the Set of particles to discover. For this, e.g. the pulses on an interrupt is switched and the time in between is measured. There are particles which return exactly in the rotation rhythm of the customer, so these are from Count the counting result. If too many such particles are found, one can Maintenance warning are issued.
  • the preferred arrangement comprises a measuring bar with individual optoelectronic ones Devices.
  • a bar 50 is shown schematically in FIG. 8. It includes a elongated housing 22 (see Fig. 3A), e.g. in the form of a hollow profile with a open side 51, which is directed towards the customer during operation.
  • the bar 50 also includes five optoelectronic devices ("measuring heads") 52, each measuring head a respective housing 53 (indicated by dashed lines), an optical system 23 (see FIG. 3A) and contains a sensor / electronics unit 24. All units 24 are with one Bar processor 54 connected to which a memory 55 is assigned.
  • the processor 54 is connected to the card controller 12.
  • the bar 22 is in this case Assigned speed sensor 48, which supplies a signal to the processor 54, which the Speed of the pickup 7 corresponds. This measure is not necessary if the the same information is available from the card controller 12.
  • the measuring heads 52 can each be put together separately and individually predetermined locations can be mounted in the housing 22. The assembly is done in such a way that the optics of each measuring head of the open front 51 of the housing is opposite.
  • the processor 54 (including its memory 55) is also called Unit built into the beam behind the measuring heads 52.
  • the connection of a measuring head 52 with the processor 54 can automatically "plug in" the Measuring head in the measuring bar or another suitable one Connection possibility can be provided so that the measuring heads 52 are replaced individually can be done without having to dismantle the entire facility. This can e.g. after the measuring bar has been pivoted into the above-mentioned standby position has been. It is of course not absolutely necessary to have a swiveling movement use to move the bar to the standby position, which will pivot but in most cases prove to be the most suitable solution.
  • each measuring head 52 not only include the converging lens (see lens 36, 6) but also a respective light source ("transmitter”), e.g. a diode for Detect infrared light.
  • the geometry of the elements of the optics 23 can be such be chosen for the intended distance from the customer (e.g. 30 to 40 mm) the light beam from the transmitter and the remitted ones collected by the lens Radiate each a predetermined angle to a passing through the measurement spot Have tangents.
  • the angle for the collected light rays is preferably about 90 ° (for example 80 ° to 100 °).
  • the angle for that of the The light source can be determined empirically, but lies for example near 45 °.
  • the sensors of each measuring head include e.g. a light receiver in the form of a Arrays of (several) photodiodes.
  • the array can e.g. be in the form of a "line” the "line” extending parallel to the axis of the customer.
  • the measuring spot on The customer can have a corresponding ("line-shaped") shape.
  • the length of the Measuring spot is, for example, 3 to 7, preferably approx. 5 mm, and it has e.g. a width in the range 0.2 to 0.4 mm.
  • the optics 23 can be designed such that the image generated on the receiver of the measuring spot is larger than the measuring spot itself. An enlargement between 1 and 2, for example about 1.5 is suitable.
  • the distance between the receiver and the lens can be chosen such that the image is somewhat "out of focus” so that the "fields of view” of the individual photodiodes overlap slightly.
  • the device is able to in the customer set Detect stuck parts and take them into account when evaluating.
  • the encoder measures the speed of the customer and is also on Processor connected.
  • the signal from the encoder is processed so that the speed is measured and a Angle information can be derived. This is also a stable known Frequency necessary to establish the relation to time.
  • One of the main tasks of the processor in the measuring bar is to receive external signals - from Impurities recorded on the measuring heads - provided with a time stamp in the To store memory.
  • a discrete solution would consist of one or more Counter groups have their counter value interrupt-controlled when an event occurs is read out and saved. This still requires a way of Identification of the triggering measuring head.
  • the processor software takes the data provided by the measuring heads Defects and processes them.
  • the higher-level control of the card is by means of BUS or a point-to-point connection is connected and receives results. she can query statistics and provides certain operating values.
  • a part of the program essentially consists of the measurement evaluation, the fault points collects.
  • the measuring heads generate an interrupt at each fault point, which is followed by the Processor immediately has to read the bit pattern of the 5 measuring heads.
  • the Angle information (the relative angle on the customer) and the time information (the how many revolutions it is). Both are stored in a ring buffer written.
  • the ring buffer should rotate a few dozen turns Seconds.
  • the main program can save these stored defects independently of the real one Search time and track the counters. It decides when thresholds are exceeded and sends messages to the controller. It reports regularly the current meter reading.
  • the communication device mainly from external interrupts keep the connection with the card control upright.
  • the speed can be determined by a period measurement. This measurement must be done relatively rarely because the speed is very constant. The so The speed information obtained is used to find a suitable one from the processor clock Derive frequency. A counter is operated at this rate, each time after one full revolution is zeroed and then starts up. So this is an angle information available, the resolution of which is somewhat dependent on the speed.
  • each measuring head 52 preferably comprises a means for generating a "switching threshold" (see FIG. 7).
  • the garnished surface of the customer (without fleece) reflects relatively little light into the converging lens of the Measuring head.
  • the switching threshold should accordingly be significantly higher than that Signal level are generated by the customer without processed material.
  • the (normal) fleece (in the set) will increase the remission.
  • the signal level will at most be a function of the fleece density, i.e. at most it depends on the production (the card).
  • the switching threshold should be chosen slightly higher than the highest Level that can be generated by a normal fleece.
  • a "defect" in the fleece e.g. a nits or a dirt particle - "white spots" will have a much higher reflection than the normal fleece e.g. at least about 80% more.
  • the switching threshold can therefore e.g. approx. 40% to 50% higher than the signal level generated by the normal fleece. The higher the better because Attenuation of the signal level due to contamination must be expected.
  • the signal level from the measuring head is not only dependent on the measuring spot, however also of the condition of the measuring head itself. Accordingly, it can change over time to change.
  • the switching threshold can be considered as one Function of an "average” can be defined using the electronics of the measuring head itself is arranged such that the average of the output signal from all diodes of the array is determined continuously or periodically and to determine the effective Switching threshold is used. When the "drift" of the mean over time becomes accordingly the switching threshold is tracked. Such migration can either through changes in the state of the measuring head and / or in the measuring spot are caused. Migration outside a predetermined limit can be considered Serve triggers for an alarm.
  • the switching threshold should be selected so that the measuring head is on every fault with a minimum size or larger.
  • the minimum size can e.g. one Correspond to a diameter of 0.2 mm. Every fault location should be counted once, i.e. in the preferred arrangement, no measures are taken to distinguish between Impurities of different sizes or impurities of different types differ. Disturbances that are very close to each other are rare occurrence. They can therefore only be counted once, as they are for the static Evaluation of the results can hardly be considered.
  • the number of defects is preferably in relation to the effective production brought, because basically with higher production with a higher number of defects is to be expected per gram.
  • Effective production information is provided by the card control 12 delivered. In principle it would be possible to determine the number of defects only in relation to production in the card control. But this poses a requirement for the card control, which is not absolutely necessary for them because the "quality sensor" according to this invention for the basic function of the card is not necessary is.
  • the "Q device” forms one according to its mode of operation unit that is as autonomous as possible, but uses signals that are definitely in the Carding itself are available.
  • a possible "disruptive factor" depends on differences in the tooth height of the Customer set together.
  • the change in tooth height due to wear and tear Regrinding is low (L 0.1 mm) and therefore has no significant impact particle detection.
  • there are sets of different heights (4 ... 5 mm). This fact must be taken into account by making the optics a has sufficient depth of field or the bar must be so towards the customer be shifted so that the image quality is retained.
  • Fig. 9 shows a part of the drum 4 (Fig. 1) with its cylindrical surface 64 and Drum bottoms 66.
  • the surface 64 is provided with a set, which in this example in the form of wire 70 with saw teeth 72 is provided.
  • the sawtooth wire 70 is "wound” on the drum 50, i.e. in close to each other Windings, between side flanges 68, wrapped around a tipped one to form a cylindrical "work surface”.
  • the axial dimension B of this work surface can referred to as the "working width".
  • the general Material flow direction (left to right in Fig. 1) can be considered the longitudinal direction of the Carded be called.
  • the shaft W of the drum 4 is also shown.
  • This wave W is in a in Fig. 9 frame not shown, so that the drum by a not shown Drive about the longitudinal axis A-A of the shaft W can be rotated.
  • the Diameter ( ⁇ ) of cylindrical surface 64 i.e. twice that shown Radius R
  • the Diameter ⁇ between 700 mm and 1000 mm, preferably one Diameter between 750 mm and 850 mm is selected.
  • the preferred Diameter range is 800 to 820 mm.
  • the present invention is particular but not exclusively intended for use in such a card.
  • One card after EP-A-866 153 preferably has a working width B greater than 1300 mm, e.g. 1500 mm. on.
  • the present invention is in particular but not exclusive designed for use in such a card.
  • the drive system (not shown) must be designed accordingly.
  • the peripheral speed of a (today) conventional card (in normal operation) is in the range of 20 to 40 m / s, which corresponds to a speed of 300 to 600 rpm.
  • the drum Around to maintain this peripheral speed in the new (smaller) card, the drum must be driven at a speed in the range of 500 to 1000 rpm become.
  • the drum is preferably designed with an even higher one Speed to be driven without strength, rigidity or To raise vibration problems.
  • licker-in 3 according to Fig. 1 can e.g. replaced by several pioneers e.g. according to the principles explained in DE-A-33 46 092 and DE-A-43 31 284 were. This may result in a higher degree of opening of the fiber material before delivery to the drum.
  • An angle ⁇ of at most 90 °, preferably 60-75 ° is sufficient for the purpose mentioned.
  • the ratio of the diameter D of the drum 150 to the diameter d of the Pickup 62 is also an important feature of the preferred embodiment of the card according to EP-A-866 153. This ratio is preferably in the range 1.1-1.8 and is thus significantly lower than the corresponding ratio for conventional cards.
  • the solution according to FIG. 10 also comprises three licker-ins 58, 58A and 58B.
  • the the latter licker 58B cooperates with the feed roller 56, which the Fibers from a cotton wool, which is formed by the filling shaft F.
  • the shaft is preferably provided with a cleaning device RE according to EP-A-810 309.
  • the lickerins in Fig. 10 are "on one line” or "in a common Level ", with alternative arrangements in our Swiss Patent Application No. 1811/98 of September 4, 1998 have been shown.
  • the revolving lid assembly 152 in FIG. 10 comprises approximately 70-90 flat bars 53, of which about 20 - 35 at the same time in the working position opposite the drum 150 stand. Only one flat rod 153 is shown in FIG. 10.
  • the revolving cover arrangement 52 can be replaced by a fixed cover, e.g. according to the principles described in US-B-3,604,062; US-B-3,044,475 and US-B-3,858,276.
  • a drum diameter in the range of 750 to 850 mm results in one improved (increased) centrifugal force effect (compared to the conventional one today) Card), with enough space to accommodate the required.
  • Attach counter elements revolving cover, fixed cover, etc.
  • a modern card must be covered with a jacket, for example a casing 201 (see schematic FIG. 11) according to EP-B-585 196.
  • This Casing comprises a main part with two side doors 204, 205 and parts 202, 203 for the entry and exit areas. Rectangular suction openings 209,210 with Bars 211 are provided in the doors and air (212, Fig. 12) flows through these openings into the encased space. This air is to be drawn off through suction tubes 213 and suction supports 214 flow into a collecting duct 215 (see also FIG. 13) and also remove dirt particles and waste separated by the card.
  • the entire side of the card opposite the doors 204, 205 is formed as a roller box 216 which is on the floor by means of rollers (not shown) can roll.
  • This box contains a filter 217, a fan 218 with Drive motor 219, a central suction pipe 220 and a control device 222 for the whole card.
  • the box 216 is connected to the by means of a rod 221 Card frame connected and when swung away from the frame and the Control lines are routed along the bar 221 from the device 222 to the Working elements of the card, or guided on their drives.
  • a working width B (Fig. 9) of 1000 mm is the entire width of the closed sheathed Space (i.e. the width across the material flow direction) e.g. approx. 2300 mm.
  • FIG. 14 shows parts of a conventional ("large-volume") card in assembly.
  • the substructure 230 can be seen, whereupon the Drum shields 231 (see FIG. 15) can be mounted, which are the drum bearings take up.
  • the substructure comprises two side walls 232 (only one in FIG. 15 can be seen), each offering an upward support surface 233.
  • On this Carrier surfaces support the working elements such as drum, licker-in, taker and they are individually adjusted along the support surfaces in relation to each other to achieve the set the required working columns.
  • the drum is by means of two plates 231 (only one shown in Fig. 15) carried with a hub 234 each.
  • the hub 234 is out cast in one piece with a plate-shaped wall 235, the various after has protruding ribs on the outside, only the Ribs 236 have been shown.
  • the ribs 236 form two support legs 239 which on the Sitting area 233.
  • 16 shows the arrangement of various setting elements 237, according to EP-A-790 338 for adjusting work elements behind the Drum shield can be used, with the adjustment elements between the Ribs need to be positioned. Access to these elements is in one Fully assembled card of conventional design is not possible.
  • Fig. 14 also shows both the main motor 240, which drives the drum 50, and the motor 242 for the Outlet. These motors are attached to the base 230 and jump off to the side Substructure, i.e. there must be space between the substructure 230 and the Jacket 201 (not shown in Fig. 14) can be left free.
  • the main engine as well other motors are therefore in the conventional card between the substructure and the side doors 204, 205 (Fig. 11).
  • the "box" K shown in FIG. 17 does not represent a special working element but merely is the working width (e.g. 1500 mm) of the new card. This width is between two vertical side planes E1 and E2.
  • the vertical levels S1 and S2 represent the Side walls of the casing.
  • the width in between (e.g. 2300 mm) corresponds to the already known width for a cotton card.
  • One machine side (on the right in FIG. 17) is provided with a box 300, which contains the machine control (electronic elements; computer). This page is too provided with an operating console (not shown).
  • the other side of the machine is provided with air-guiding sheet metal parts, which form guide channels 302 and with the Work the dirt drainage tube (e.g. according to CH 1153/98 from May 26, 1998).
  • the arrangement will be described in more detail below with reference to FIG. 22. It stays smaller gaps F1, F2 between the casing and the working width defining elements freely.
  • Fig. 17 also shows the main motor 304 which drives the drum of the new card.
  • This engine 304 is essentially (for the most part) within the Area that is defined laterally by the side planes E1, E2.
  • This engine is 304 connected by means of a belt 306 to a wheel 308 which is connected to the shaft of the Drum (not shown) is attached.
  • the strap 306 is within the aforementioned Column F1 led.
  • the belt guide must be designed so that the belt can run past the suction supports (not shown in FIG. 17, see FIG. 12).
  • the motor 304 can e.g. below the slide R (Fig. 1), which the Fibers feed from the feed chute into the card. It can be in the same area additional motors can be accommodated, e.g. a drive motor for the runaways and another motor for the feed roller. Both can be used for the transmission belt Columns F1 and F2 are used.
  • a drive motor 310 is for the outlet section connected to various elements in this section via a gear mechanism.
  • the transmission includes a first transmission with gears 312, 314 in a first "Transmission level” and a second transmission with gears 316, 318 in one second "transmission level”. Both "transmission levels” are in the gap F1 between the casing and the working elements defining the working width.
  • the drum is again schematic with the reference number 150 indicated.
  • the outlet module 352 comprises a carrier 354 and the inlet module 356 comprises a carrier 358.
  • the axis of rotation 360 of the doffer 62 is fixed in the Carrier 354 and the axis of rotation 362 of the pickup 58 are fixed in the carrier 356 arranged.
  • the carriers 354, 356 each have a pivot axis 364 and 366, respectively the respective carrier with a base plate of the frame (not shown in FIG. 19, cf. Fig. 21) connects.
  • Each carrier 352, 356 is between about the respective axis 364, 366 a standby point (not shown in FIG. 19) and the illustrated working point pivotable.
  • the licker-in 58 has one predetermined distance (working gap) at the transfer position UV compared to the Drum 150, while in the work station of module 352, the pickup 62 opposite its predetermined distance (working gap) at the transfer position UA drum 150.
  • the adjustment of a module 352 or 356 about the respective pivot axis 364, 366 is influenced by the leverage between the axis and a respective one of the Swivel axis remote location 365, 367 accomplished.
  • a screw 368 is shown at every location 365, 367.
  • This representation is only schematic to visualize the principle - it can be any kind of adjustable elements between the carrier 354 and 358 and a stationary stop 370 can be provided on the machine frame. It could e.g. a controllable actuator system can be provided for this (e.g. according to EP-A-386 551).
  • the inlet module 356 includes all three licker-in 58, 58A and 58B as well as the Feed roller 56 together with its associated trough and motors for the licker-ins and Feed roller. Rollers 58A, 58B and 56 can be linear in the longitudinal direction of the Module are moved to the respective working gap until the next roll in to set the row.
  • the outlet module 352 is also schematic in FIG. 20 displayed. It includes all working elements of the outflow section, so (except the aforementioned customers 62) also the take-off roller 372, two fleece conveyor rollers 374, 376, a band-forming organ 378 and a band pull 380. Certain elements but must be movably mounted on the carrier 354 in order to access the to ensure other elements.
  • the elements shown schematically are all pivotally attached to the carrier 354, but this is not essential to the invention.
  • the take-off roller 372 can e.g. a pivot axis 373 above the pickup 62 be provided.
  • a pivot axis 375 next to the Removal roller 372 for the lower conveyor roller 376 an axis 377, which is next to the side the customer is provided in the side walls of the carrier 354, and for the Units 378, 380 each have an axis 379, 381 below the unit itself.
  • each module 352, 356 is also equipped with means for Provide cooperation with the respective leadership.
  • this means is provided in the form of rollers 386, each carrier 354, 356 could be provided with sliding elements to accommodate the respective guide to work together as a sled.
  • Module 352 or 356 When the module 352 or 356 is at work, the roles or Lubricant no longer in contact with the respective guide 382 and 384.
  • the respective mechanisms 368 can, however, be actuated to remove the carriers 354 and 358 from to let the drum 50 swing away until the rollers come into contact with the guide to step.
  • the guide is ideally integrated in the machine base.
  • Module 352 or 356 is then in its standby position. From this position it can be in the Longitudinal direction of the machine are moved along the respective guide 382, 384, if the connection on the respective pivot axis 364, 366 is loosened.
  • the Removing module 352 is not a particular problem, module 356 but must be routed below the filling shaft F, or the shaft itself must be able to be removed to "backwards” the movement of the inlet module to enable (against the material flow direction).
  • the modules 352, 356 can therefore how “drawers” are moved into or out of the standby position. In this They can be connected to or detached from the frame.
  • FIG. 21 schematically shows the support structure for the drum 150.
  • This consists of of the above-mentioned base plate 390 extends from side to side over the whole Working width.
  • a pair of support legs 392 is attached to each end (only one pair in FIG. 21 visible) and each pair of legs carries a respective end shield 394, which the Bearing (not shown) for the drum shaft.
  • Every sign 394 is also with protruding "ears" 396 provided as attachment points for a Serving cover module (not shown).
  • a Serving cover module is shown in principle in EP-A-446 796 (Fig. 12) and is not explained in more detail here.
  • the electronic parts of the control and also certain power elements, e.g. Frequency converters can now be placed in box 300 (Fig. 17).
  • This box can be hinged (not shown, but see Fig. 13) to the frame be connected so that the box can be pivoted away from the machine can to allow access to the work items.
  • This box can form a side cover for the drum / taker / licker-in rollers.
  • the Box 300 can be provided with ribs 400 which protrude into gap F1 and thus the air flow flowing into the suction system overflows them, which causes cooling of the electronics / power units.
  • doors 402, 404 (FIG. 22) are provided, the air-guiding sheet metal parts on both doors 402 and 404 be provided and work together with the doors closed to form channels 302 (Fig. 17).
  • the channel 302 is with an extension 406 (Fig. 22), which is the air discharge in the filler shaft F adjoined.
  • the cleaning system RE (Fig. 10) allows the air systems to be combined well. It is no longer necessary to provide special air supply openings in the doors. The required air can be introduced from below.
  • the invention is also possible in machines for the production of Use non-wovens.
  • the preferred application is in the "cotton card" (Staple fiber spinning).
  • the cotton card differs from the non-wovens card at least in that a sliver is formed in the outlet of the cotton card must be, i.e. that the fleece supplied by the rollers extends across the working width (or part of the working width) pulled together to form a sliver or must be summarized.
  • the "length" of the transfer zone is between the Drum and the customer not significantly shortened (compared with that today conventional card).
  • This "transfer zone” can be called the zone of the Be considered drum circumference where the distance between the drum and the Customer is smaller than a predetermined value (e.g. 0.2 mm).
  • a predetermined value e.g. 0.2 mm.
  • a measuring bar according to Fig. 8 can e.g. integrated in module 352 (Fig. 19 or Fig. 20) are, namely according to the principles that have been explained with reference to Figures 3 to 6.
  • the good accessibility to the pick-up area of the new card makes any easier Maintenance work on the beam, e.g. cleaning the viewing window.
  • modules 352, 356 in their standby positions can be introduced.
  • you can the modules are attached to mobile maintenance devices (e.g. sledges) outside the card be, for each module first the device in a predetermined position is brought opposite the card and fastened and then the module in its working position is moved relative to the device. In In this case, the module is already in its place when the device is attached Standby position.
  • mobile maintenance devices e.g. sledges

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
EP02028598A 1998-03-30 1999-03-30 Carde Revoked EP1300494B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05020314A EP1612303A3 (fr) 1998-03-30 1999-03-30 Carde avec carter
EP05020313A EP1612302B1 (fr) 1998-03-30 1999-03-30 Carde avec module guidé

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH75398 1998-03-30
CH75398 1998-03-30
CH193598 1998-09-23
CH193598 1998-09-23
EP99910071A EP1068380A1 (fr) 1998-03-30 1999-03-30 Surveillance de la qualite de la nappe dans la carde

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP99910071A Division EP1068380A1 (fr) 1998-03-30 1999-03-30 Surveillance de la qualite de la nappe dans la carde

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP05020314A Division EP1612303A3 (fr) 1998-03-30 1999-03-30 Carde avec carter
EP05020313A Division EP1612302B1 (fr) 1998-03-30 1999-03-30 Carde avec module guidé

Publications (3)

Publication Number Publication Date
EP1300494A2 true EP1300494A2 (fr) 2003-04-09
EP1300494A3 EP1300494A3 (fr) 2003-04-23
EP1300494B1 EP1300494B1 (fr) 2006-05-24

Family

ID=25685581

Family Applications (4)

Application Number Title Priority Date Filing Date
EP99910071A Withdrawn EP1068380A1 (fr) 1998-03-30 1999-03-30 Surveillance de la qualite de la nappe dans la carde
EP05020314A Withdrawn EP1612303A3 (fr) 1998-03-30 1999-03-30 Carde avec carter
EP02028598A Revoked EP1300494B1 (fr) 1998-03-30 1999-03-30 Carde
EP05020313A Revoked EP1612302B1 (fr) 1998-03-30 1999-03-30 Carde avec module guidé

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP99910071A Withdrawn EP1068380A1 (fr) 1998-03-30 1999-03-30 Surveillance de la qualite de la nappe dans la carde
EP05020314A Withdrawn EP1612303A3 (fr) 1998-03-30 1999-03-30 Carde avec carter

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP05020313A Revoked EP1612302B1 (fr) 1998-03-30 1999-03-30 Carde avec module guidé

Country Status (4)

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EP (4) EP1068380A1 (fr)
AU (1) AU2918899A (fr)
DE (2) DE59913470D1 (fr)
WO (1) WO1999050486A1 (fr)

Cited By (1)

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DE102011113390A1 (de) * 2011-09-16 2013-03-21 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde oder Krempel mit einer garnierten Trommel und mindestens einem garnierten benachbarten Abnehmer

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EP1167591A1 (fr) * 2000-06-23 2002-01-02 Maschinenfabrik Rieter Ag Facteur de transfert
DE102010018840A1 (de) 2010-04-29 2011-11-03 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Karde oder Krempel mit einer garnierten Trommel und mindestens einer benachbarten Walze
CH714818A1 (de) * 2018-03-21 2019-09-30 Rieter Ag Maschf Bandbildungseinheit für eine Karde.
CN108796681A (zh) * 2018-07-20 2018-11-13 青岛宏大纺织机械有限责任公司 一种梳理机上纤维疵点在线监测系统
DE102019115138B3 (de) * 2019-06-05 2020-12-10 TRüTZSCHLER GMBH & CO. KG Karde, Vliesleitelement, Spinnereivorbereitungsanlage und Verfahren zur Erfassung von störenden Partikeln
CN114990741B (zh) * 2022-07-01 2023-03-21 江苏迎阳无纺机械有限公司 一种非圆柱体锡林结构和控制方法

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GB936524A (en) * 1960-08-20 1963-09-11 Ezio Bettoni A carding machine for textile fibres
GB1317536A (en) * 1971-02-18 1973-05-23 Fehrer Ernst Gmbh Carding engine
US4566153A (en) * 1983-09-27 1986-01-28 Hollingsworth Gmbh Universal textile machine for optionally manufacturing longitudinally oriented or randomly oriented fibre fleeces
DE3907517A1 (de) * 1989-03-08 1990-09-13 Rieter Ag Maschf Verstelleinrichtung

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DE3365630D1 (en) * 1982-06-12 1986-10-02 Carding Spec Canada Improvements relating to carding engines
CH669401A5 (fr) * 1988-03-02 1989-03-15 Loepfe Ag Geb
DE3928279C2 (de) * 1989-08-26 1998-05-14 Truetzschler Gmbh & Co Kg Verfahren und Vorrichtung zum Erkennen von störenden Partikeln, insbesondere Trashteilen, Nissen, Schalennissen, Noppen u. dgl., in textilem Fasergut, z. B. Baumwolle, Chemiefasern u. dgl.
EP0606620B1 (fr) * 1993-01-11 2000-02-09 Zellweger Uster, Inc. Appareil et procédé de mesure et de classification de corps étrangers dans des échantillons fibreux
DE19604499B4 (de) * 1995-04-13 2009-01-08 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Karde zum Erkennen von störenden Partikeln, insbesondere Trashteilen, Nissen, Schalennissen, Noppen u. dgl.

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GB936524A (en) * 1960-08-20 1963-09-11 Ezio Bettoni A carding machine for textile fibres
GB1317536A (en) * 1971-02-18 1973-05-23 Fehrer Ernst Gmbh Carding engine
US4566153A (en) * 1983-09-27 1986-01-28 Hollingsworth Gmbh Universal textile machine for optionally manufacturing longitudinally oriented or randomly oriented fibre fleeces
DE3907517A1 (de) * 1989-03-08 1990-09-13 Rieter Ag Maschf Verstelleinrichtung

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Publication number Priority date Publication date Assignee Title
DE102011113390A1 (de) * 2011-09-16 2013-03-21 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Karde oder Krempel mit einer garnierten Trommel und mindestens einem garnierten benachbarten Abnehmer

Also Published As

Publication number Publication date
DE59914682D1 (de) 2008-04-17
EP1612302A3 (fr) 2006-09-20
EP1300494B1 (fr) 2006-05-24
EP1612303A2 (fr) 2006-01-04
EP1300494A3 (fr) 2003-04-23
WO1999050486A1 (fr) 1999-10-07
EP1612302A2 (fr) 2006-01-04
DE59913470D1 (de) 2006-06-29
AU2918899A (en) 1999-10-18
EP1612302B1 (fr) 2008-03-05
EP1068380A1 (fr) 2001-01-17
EP1612303A3 (fr) 2006-09-20

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