EP0556386B1 - Verfahren und vorrichtung zum ermitteln des durchmessers einer spule an einer spinnstelle einer spinnmaschine - Google Patents

Verfahren und vorrichtung zum ermitteln des durchmessers einer spule an einer spinnstelle einer spinnmaschine Download PDF

Info

Publication number
EP0556386B1
EP0556386B1 EP92922746A EP92922746A EP0556386B1 EP 0556386 B1 EP0556386 B1 EP 0556386B1 EP 92922746 A EP92922746 A EP 92922746A EP 92922746 A EP92922746 A EP 92922746A EP 0556386 B1 EP0556386 B1 EP 0556386B1
Authority
EP
European Patent Office
Prior art keywords
spinning
bobbin
thread
yarn
speed
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.)
Expired - Lifetime
Application number
EP92922746A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0556386A1 (de
Inventor
Gerhard Hoeber
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.)
Rieter Ingolstadt GmbH
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0556386A1 publication Critical patent/EP0556386A1/de
Application granted granted Critical
Publication of EP0556386B1 publication Critical patent/EP0556386B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/082—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to a predetermined size or diameter of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a method for determining the diameter of a bobbin at a spinning station of a spinning machine, in which a sliver of known strength is fed to the spinning station at a certain speed, spun there into a thread and then from there at a defined ratio to the sliver feed speed Take-off speed is drawn off and wound onto the spool with a winding speed matched thereto, and a device for carrying out this method.
  • variable stop is a mechanical measure to determine the changing coil diameter at the desired times.
  • the use of mechanical sensors that continuously or discontinuously contact the coil surface is common.
  • An optical sensor continuously determines the changing diameter of the coil without having to mechanically touch the surface.
  • An optical scanning (DE-OS 36 17 151, Fig. 3) has the disadvantage that the optics on the textile machine can become dirty with dust, fibers and other particles, which has the consequence that the signal obtained is falsified.
  • a third possibility (US-A-3 877 209) according to the prior art consists in the detection of the rotational speed of the take-off roller or winding roller, on the basis of which the yarn length and thus the diameter of the package are determined.
  • the object of the present invention is to provide a method and a device which avoid these disadvantages and make it possible to determine their respective diameters in a simple manner without directly scanning the coil.
  • the yarn thickness corresponding to a certain bobbin diameter is empirically determined, that taking into account possible production interruptions at this spinning station, the yarn length generated is measured, that from the product of the tape thickness with the quotient Tape feed speed and thread take-off speed, the yarn thickness is determined, that from the quotient of the wind-up speed and the take-off speed, a parameter for the winding hardness of the bobbin is determined, that the determined yarn strength and the winding tension corresponding to the determined winding hardness with the yarn thickness and the winding tension, that of the empirical yarn length determination for the specific bobbin diameter have been compared, and any deviation that may arise is used as a correction factor for the yarn length when determining the actual bobbin diameter.
  • the empirical determination of the yarn length serves to create a reference value.
  • the length of the yarn can be measured during the production of a bobbin by directly scanning the yarn fed to the bobbin; Of course, even after the production of a bobbin, ie after it has reached its desired size, the yarn can be unwound from this bobbin and measured in a suitable and customary manner.
  • the bobbin diameter also depends on how tightly the bobbin is wound, ie on the winding tension, which is why this is also determined from the quotient of the winding speed and the take-off speed. Now the yarn thickness specified as the reference value and the winding tension specified as the reference value are compared with the corresponding measured values actually present below Compared values.
  • a correction value is then formed from the deviations that result, which is taken into account when determining the actual bobbin diameter and leads to an increase or decrease in the yarn length - in comparison to the reference yarn length - which corresponds to the determined bobbin diameter. It goes without saying that the computer which carried out the corresponding correction had previously been programmed accordingly - when entering the reference values - that the corrections lead to the correct end values.
  • the correction values are to be determined empirically once and can then be entered in the same way for all machines.
  • the actual yarn length for a certain bobbin diameter is checked at predetermined time intervals and the correction factor is corrected if the actual yarn length deviates from the theoretical yarn length to be expected taking into account the correction factor.
  • the wear that has occurred in the meantime is taken into account from time to time, so that the spool size, despite wear, affects the diameter of the spool Drive elements can be kept constant within relatively small tolerances.
  • the measurements of the yarn length can in principle be carried out with any bobbin diameters, which is particularly useful when determining the reference values. When checking the coil diameter later, however, it is usually sufficient if the desired diameter of the full coil is selected as the specific coil diameter.
  • the yarn twist is taken into account, for which purpose the twist of the yarn per unit length is determined from the quotient of the speed of the spinning element and the take-off speed and the deviation from a predetermined reference value is taken into account as a correction factor when determining the actual coil diameter.
  • the predefined reference value has already been fed during the programming of the computer, so that a comparison with this known reference value is now possible.
  • the measurement of the yarn twist can be carried out in addition to the determination of the yarn thickness, since - as said - the actual yarn thickness depends not insignificantly on the twist contained in the yarn.
  • the speed of the spinning element is exactly the same as the number of rotations generated in the thread per unit of time.
  • the diameter of which is a multiple of the diameter of a thread and the rotation of which occurs when the thread unrolls on the peripheral surface of at least one friction spinning element, on the other hand - based on the speed of the friction spinning element - a much higher speed is generated in the thread, which must be taken into account when determining the yarn twist per unit length.
  • the yarn twist and thus the hardness of the yarn depends on the strength of the excess pressure which is brought to bear on the thread.
  • This also applies to a pneumatic open-end spinning process, in which the individual fibers are integrated in a rotating yarn end, as well as to a pneumatic false-wire spinning process, in which a fiber ribbon is drawn into a fiber ribbon, incorrectly rotated and fixed in the wrongly rotated position by means of spread and integrated fiber ends becomes.
  • the overpressure which causes the yarn rotation and acts in the spinning element is measured and the deviation from a predetermined reference value is taken into account as a correction factor when determining the actual bobbin diameter.
  • the overpressure does not have a directly proportional effect on the yarn twist and thus on the hardness and thickness of the yarn.
  • the size of the feed hole for the compressed air supplied to the spinning element, the position of these feed holes with respect to the central passage in the spinning element and their Inclination with respect to the longitudinal axis of the spinning element cause the overpressure in the spinning element to have a greater or lesser effect, so that the overpressure more or less influences the yarn thickness accordingly.
  • This different intensity of influence of the overpressure due to different geometric modifications of the spinning element is taken into account according to the invention in that when the spinning element is replaced by one with a different geometry, the geometric deviations from a given geometry of the spinning element are taken into account as a correction factor in determining the actual spool diameter.
  • the size of the correction factor is determined empirically beforehand and can then be entered directly if necessary without further attempts by providing appropriate markings at the entry point for the correction factor or by taking the corresponding value from a table and entering it as a numerical value.
  • Another factor that can affect the bobbin diameter is the properties of the fiber material that is spun. Natural fibers are usually much more elastic and fuller than synthetic fibers. Here, too, a reference value is formed when feeding the computer. Furthermore, according to the invention, it is later provided during production that fiber material properties which have an effect in the bobbin diameter are taken into account as a correction factor for determining the actual bobbin diameter.
  • Determining the current coil diameter is important for a wide variety of purposes.
  • a signal for initiating a coil change is triggered, for example, as a function of reaching a predetermined coil diameter, taking the correction factors into account.
  • determining the bobbin diameter is also very important in connection with the removal of a broken thread.
  • the determined bobbin diameter is fed to the drive of a thread take-up device as a signal parameter for determining an actuating value, and the thread take-up device is brought into a defined distance from the outer surface of the bobbin under construction.
  • the thread take-up device and its drive can also show signs of wear, which have an effect on the individual spinning positions as adjustment inaccuracies and thus also impair the thread take-up safety. According to the invention, it is therefore expediently provided that such a play occurring at the individual spinning positions and acting at a distance from the thread take-up device to the outer surface of the bobbin is taken into account as a correction factor.
  • a further advantageous development of the method according to the invention provides that the play occurring at the individual spinning positions and acting at a distance from the thread take-up device to the lateral surface is checked at predetermined time intervals and the corresponding correction factor is corrected when this play changes.
  • a speed pick-up device which determines their speed of rotation is assigned, which is associated with a common control device are connected in terms of control, into which the yarn length corresponding to a specific bobbin diameter can be entered, which can be corrected in the form of correction factors which are calculated on the basis of the determined speeds of the tape feed device, take-off device and winding device.
  • the spinning element or its drive is assigned or deliverable a measuring element measuring its speed, which can be adjusted with the control device is connected for tax purposes in order to generate a correction factor.
  • the spinning element rotates.
  • the invention can also be used when the spinning element is of a non-rotating nature and in it an air vortex rotates for yarn production, which is kept rotating by a compressed air supply with a tangential component.
  • This can be an open-end spinning element or just a spinning element in which a false twist is given to a fiber ribbon to form a thread.
  • control element has at least one compressed air supply opening opening laterally into a thread formation zone from which the thread forming is drawn off and a compressed air line ending in this at least one compressed air supply opening or a compressed air source generating the compressed air Overpressure-determining signal transmitter is assigned, which is connected in terms of control to the control device for generating a correction factor.
  • the control device is preferably connected in terms of control to a bobbin changing device, so that an exchange of a full bobbin for an empty tube can be initiated when a predetermined bobbin size is reached.
  • control device is connected in terms of control to a drive for a thread take-up device, by means of which the latter can be brought into a defined distance from the respective outer surface of the bobbin under construction. Since a wide variety of correction values can be entered into the control device - in addition to the reference values - the thread take-up device can always be brought into an optimal position in relation to the bobbin under construction in order to take up the thread end required for re-spinning.
  • the invention expediently provides that the control device is assigned an input device for the manual input of correction factors.
  • the input device is advantageously subdivided into several partial input devices, one of which is used to input fiber material properties that affect the bobbin diameter and another is used to input a game at the respective spinning station that affects the delivery of the thread take-up device to the bobbin.
  • control device has a separate memory for each spinning station, to which the input device can optionally be assigned.
  • Corection factor in the sense of the present invention is understood to mean any value that changes the values entered as the basic setting in the control device. It does not matter whether the theoretical yarn length, any play, wear in the transport and transmission elements, etc. Like. takes into account.
  • the bobbin diameter is required as a signal parameter for the control of both the bobbin change at the right time and for the control of a thread take-up device.
  • the method according to the invention and the device according to the present invention enable a precise and precise determination of the current spool diameter in a simple and safe contactless manner and in adaptation to the most varied variables including different wear, which is essential for various tasks during the spinning process . So the spool change can be carried out exactly in time.
  • the thread length required for piecing can be measured more precisely if the bobbin size is known than if it is not known.
  • the bobbin size is known so that the thread take-up nozzle is set precisely in relation to the bobbin for the take-up in order to be able to bring the thread take-up nozzle as close as possible to the bobbin surface without the risk of bobbin damage .
  • the inventive solution can be used both in open-end spinning devices with mechanical and in fiber sliver spinning devices with pneumatic twist. It is not even necessary for the spinning device to be one that works on the open-end spinning principle, e.g. Rotor spinning, friction spinning or electrostatic spinning, but the invention can also be used in false wire spinning with pneumatic twisting.
  • the object of the invention can be realized in an economical manner since, as a rule, all driven elements have a central drive to which the rotary knives can be assigned. As a result, the subject of the invention can also be retrofitted inexpensively to existing machines with a large number of similar workplaces.
  • FIG. 2 shows a cross section through a work or spinning station of such a rotor spinning machine with only the essential elements that are absolutely necessary for understanding the invention; however, the other elements required for spinning or piecing have been omitted for the sake of clarity in the drawing.
  • the spinning device 1 of the rotor spinning machine has a feed device 2, a dissolving device 3 and a spinning element designed as a spinning rotor 4. Downstream of the spinning device 1 are a take-off device 5 and a winding device 6.
  • the feed device 2 has a driven feed roller 20 and a feed trough 21 which cooperates with it.
  • a sliver B stored in a can 22 is fed to it.
  • the feed roller 20, which usually extends over a plurality of spinning stations, is at a suitable location, e.g. in the drive end frame of the machine, a sensor 23 is assigned, which detects the speeds of the feed roller 20.
  • the opening device 3 has a opening roller 30 which is arranged in a housing 31, from which a fiber feed channel 40 extends into the spinning rotor 4, around the fibers F which come from the leading end of the sliver B fed to the rotating opening roller 30 through the feeding device 2 are combed out to feed the spinning rotor 4, where they are tied into the end of a thread G.
  • the thread G leaves the spinning rotor 4 arranged in a housing (not shown) through a thread draw-off tube 41, for which purpose it is continuously drawn out of the spinning rotor 4 by the draw-off device 5.
  • the take-off device 5 consists in the usual way of a driven take-off roller 50, which extends over a large number of spinning positions, and one pressure roller 51 per spinning position.
  • the thread G is fed through the take-off device 5 to the winding device 6, which has a winding roller 60 which extends over a plurality of spinning positions and on which the forming bobbin 61, which is held rotatably between two swivel arms 62, rests for each spinning position.
  • the winding device 6 has a traversing thread guide 63 for shifting the thread G.
  • the spinning rotor 4, the take-off device 5 and the winding device 6 are each assigned a sensor 42, 52 or 64.
  • the sensor 42 scans the spinning rotor 4 itself or its shaft 43 or its drive (e.g. support disks - not shown - which rotate in a fixed speed ratio to the spinning rotor 4).
  • the sensors 52 and 64 sense the take-off roller 50 and winding roller 60, respectively, which extend over a plurality of spinning positions and are located at a suitable location, e.g. as well as the sensor 23, arranged in the drive end frame of the machine.
  • the sensors 23, 42, 52 and 64 are connected via lines 24, 44, 52 and 65 to a control device 7, which control various processes, such as, for example, the replacement of a full bobbin 61 for an empty tube or a piecing process after a machine stoppage or a thread break .
  • An input device 70 with several setting devices 71, 72 and 73 is connected to the control device 7 via a line 74, the meaning of which will be described in detail below.
  • the thickness of the incoming sliver B is determined by a sensor 25 for thickness measurement.
  • the sensor 25 is connected to the control device 7 via a line 26.
  • Various constants that influence the coil size are manually entered via a keyboard or by means of rotatable adjusting knobs (input devices 71 to 74) of the input device 70.
  • These include e.g. Material constants that influence the thread size. These material constants result from the diversity of the material to be processed, e.g. B. elasticity and strength of the cotton or plastic fibers.
  • the signals coming in via the sensors 23, 25, 42, 52 and 64 are detected and sent for further processing.
  • the signal detection SE2 detects the number of the sliver B being fed (sensor 25), the speed of the feed roller 20 (sensor 23) and the speed of the take-off roller 50 (sensor 52).
  • the yarn strength can be determined as the product P from the number of the sliver B and the quotient of the feed roller speed to the speed of the take-off roller 50.
  • the properties of different materials influencing the yarn strength are known material parameters which are also taken into account as a signal parameter in the signal formation for the yarn strength .
  • These material parameters are entered manually via a keyboard or another type of setting device 71 of the input device 70, for which purpose the memory has a separate memory for each spinning station, to which the input device 70 can be optionally assigned.
  • a numerical keyboard is provided, with the help of which the desired spinning position can be set.
  • the starting point for determining the winding tension which is a measure of the winding hardness of the bobbin 61, is the rotational speed for the take-off roller 50 (sensor 52) and the rotational speed of the winding roller 60 (sensor 64).
  • the signals obtained via the signal detection SE1 are processed into a quotient Q1 from the speed of the winding roller 60 to the speed of the take-off roller 50.
  • the signal parameter SK1 for this quotient forms the wind-up voltage.
  • the starting point for determining the yarn twist is the detection of the rotor speed (sensor 42) and the speed of the take-off roller 50 (sensor 52) in the signal detection SE3.
  • a signal parameter is determined by forming the quotient Q2 from the rotor speed to the speed of the take-off roller 50 SK3 determined, which represents the yarn twist.
  • the signal parameters for yarn count SK2, winding tension SK1 and yarn twist SK3 are determined.
  • appropriate correction values are determined.
  • the correction values result from reference methods, by comparing the yarn strength, winding tension and yarn twist determined at any later point in time with the respective variables that were the basis for the initial start-up for the specific bobbin diameter, and deviations as correction factors for the yarn length when determining the actual coil diameter are used as a basis.
  • the correction values of the winding tension KF1, the yarn thickness KF2 and the yarn twist KF3 obtained by reference methods are linked to determine the yarn length SK-GL. Taking into account possible production interruptions at a spinning station, the yarn length generated must be determined.
  • the signal parameter SK-GL for the yarn length is checked in the reference process with regard to the formation of a correction factor.
  • this is taken into account in the subsequent determination of the bobbin diameter.
  • the bobbin diameter which can be corrected in this way is used as a signal parameter SK-SD for the control S of the bobbin change in due time or the control S of a thread take-up device 66 (FIG. 2) with respect to the bobbin surface, the bobbin target size for the bobbin change by the setting device 73 via a line 73 is entered.
  • Such a thread take-up device 66 is shown in broken lines in FIG. 2 and is usually used as a suction nozzle formed, which is arranged on a maintenance device which is movable along the spinning machine.
  • the suction nozzle is pivotally mounted and can be pivoted from a rest position, in which it is pivoted away from the spool 61, into a working position in which its mouth is arranged at a predetermined distance from the circumferential surface of the spool 61, in order to after a thread break while simultaneously turning back the Bobbin 61 to suck the thread end located on the bobbin 61.
  • the suction nozzle of the thread take-up device 66 is connected via a coupling housing 67 to a drive 68 which can bring the suction nozzle into a defined position with respect to the bobbin 61.
  • a drive and a slip clutch are assigned to the drive 68, the stop being set by the control device 7 via a line 69 in accordance with the current coil size.
  • the suction nozzle is also movably mounted at its end facing the suction air source via a pivotable intermediate tube piece.
  • this game can be done in the distance positioning by manually entering a correction value via the keyboard (setting device 72, line 74a) directly opposite the control Getting corrected.
  • the method and / or the device can be modified in a variety of ways within the scope of the present invention by exchanging individual characteristics with equivalents or with other combinations. For example, it is possible to distribute the setting device 71, 72 and 73 to different input devices 70 which are arranged at different locations and / or are formed differently from one another.
  • the input devices can also be designed for the input of digitally selectable numbers or as rotary knobs for the input of analog values.
  • the invention is not limited to spinning machines with mechanical twist distribution. Rather, it can be used on all spinning machines on which a sliver B is spun into a thread G.
  • a spinning machine is e.g. also a wrapping spinning machine, on which a core yarn is produced, around which a wrapping yarn is looped.
  • the strength of the wrapping yarn, the number of wraps per unit length and the tension with which the wrapping thread is wrapped around the core yarn must be taken into account. Appropriate sensors and / or setting devices must be provided for this.
  • the spinning element for example a spinning rotor 4
  • receives rotation which it then passes on to the thread G which is being produced
  • the yarn rotation can be determined very easily directly from the speed of the spinning element.
  • the number of rotations is predetermined directly by the rotor speed.
  • the ratio between the diameter of the driven friction spinning element and the thread G must be taken into account when calculating the yarn twist.
  • the diameter ratio in question must also be taken into account when calculating the quotient from the speed of the spinning element and the take-off speed.
  • this means that the rotation transmission ratio must be taken into account for the transmission of twist from the circumference of the spinning element to the thread rolling on it, which is being formed, for the determination of the yarn twist per unit length.
  • the method can also be used in spinning machines, in which the thread is twisted in a pneumatic way.
  • a spinning device is shown in FIG. 3.
  • Serving as a feeding device 8 here is a drafting system which, with its pairs of rollers 80, 81 and 82, warps the sliver B fed into a sliver which is spun into a thread G in the spinning element 9.
  • the spinning element 9 consists of a first nozzle, an injector nozzle 90, and a swirl nozzle 92 arranged downstream of it, leaving a gap 91.
  • the injector nozzle 90 and the swirl nozzle 92 each have compressed air supply openings 900 and 920, respectively, of which the injector nozzle 90 or the annular duct 901 or 921 surrounding the swirl nozzle 92 and open substantially tangentially with the axial component in the axial bores 902 or 922 of the injector nozzle 90 or the swirl nozzle 92.
  • the two ring channels 901 and 921 are above two.
  • Lines 903 and 923 with a common line 93 and via this with a common pressure source 94 in connection.
  • a manometer 95 is connected to the line 93 and is connected to the control device 7 for control purposes via a line 96.
  • Two sensors 83 and 85 are also connected to the control device 7 via lines 84 and 86, each of which has a roller at the outlet or at the inlet of the drafting system Scan the 8 pairs of rollers 82 or 80 located. Furthermore, sensors 25, 52 and 64 are connected via lines 26, 53 and 65, which - as explained using the example in FIG. 2 - scan the fiber sliver B, the take-off roller 50 and the winding roller 60.
  • An input device 70 is also in control connection with the control device 7 via lines 74, 74a, 74b, 74c, which has an adjusting device 71 (line 74b) for adjusting the processed material, an adjusting device 72 (line 74a) for adjusting a correction factor for the Mechanism of the thread take-up device 66 (see FIG. 2) influences wear, an adjusting device 73 (line 74) for setting the desired desired bobbin diameter for the full bobbin 61 and an adjusting device 76 (line 74c) for setting a correction factor to take into account the geometry of the the injector nozzle 90 and the swirl nozzle 92 existing spinning element 9.
  • the manometer 92 measures the overpressure that prevails in the line 93 and is therefore present in the compressed air supply opening 900 or 920, which opens laterally into the thread formation zone.
  • the thread formation zone is formed by the two axial bores 902 and 922 of the injector nozzle 90 and the swirl nozzle 92.
  • the manometer 95 thus detects the excess pressure applied to the spinning element 9 and emits a corresponding signal to the control device 7.
  • This signal transmitter (manometer 95) which determines the level of the effective overpressure, can - as shown - be assigned directly to the line 93 or the overpressure source 94.
  • the control device 7 continuously - apart from the signals coming from the sensors 25, 85, 83, 52 and 64 - from the manometer 95 signals are supplied, which are compared with a value registered in the control device 7 as a reference value. If the signal from the manometer 95 deviates from the target value, a corresponding correction factor is formed to correct the value for the coil diameter.
  • the distortion of the fiber sliver B is calculated from the signals coming from the sensors 85 and 83 and can be corrected by the signal coming from the sensor 52.
  • the reference values, for the setting of which only the setting device 73 is shown in the input device 70, are all set in the input device 70 by means of additional setting devices, wherein the input device 70 or a part thereof can be an integral part of the control device 7.
  • the spinning element 9 is replaced - either completely or only the injector nozzle 90 or the swirl nozzle 92 - with a spinning element of a different geometry with regard to the dimensioning and / or arrangement or orientation of the compressed air supply openings 900 and / or 920, the effect of the compressed air on the naturally also changes Thread G, and there is a different twist. This must be taken into account when calculating the bobbin size, since this changes the yarn hardness and thus the yarn cross-section.
  • the value of a specific surface line is used as the reference value.
  • any surface line can be used for this, but it has proven expedient to select the diameter of the length range as the reference, on which the drive takes place, for coils 61 which are driven via their outer circumference.
  • rollers conveying the fiber material or the rollers driving them are subject to wear, deviations occur over time between the desired nominal value for the coil diameter and the actual coil diameter. In order to keep these deviations within acceptable limits, it is checked from time to time, preferably at predetermined time intervals, whether deviations occur and how large they are. If necessary, a correction factor is to be entered by means of an adjusting device (not shown) of the input device 70.
  • any coil diameter is suitable for the definition of setpoints.
  • the scatter is smaller when a longer yarn length is selected, it is particularly expedient to use the full bobbin 61 to determine the bobbin size to be assigned to a specific yarn length.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
EP92922746A 1991-11-05 1992-10-29 Verfahren und vorrichtung zum ermitteln des durchmessers einer spule an einer spinnstelle einer spinnmaschine Expired - Lifetime EP0556386B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4136360 1991-11-05
DE4136360 1991-11-05
DE4235450 1992-10-21
DE4235450A DE4235450A1 (de) 1991-11-05 1992-10-21 Verfahren und vorrichtung zum ermitteln des durchmessers einer spule an einer spinnstelle einer spinnmaschine
PCT/EP1992/002466 WO1993009280A1 (de) 1991-11-05 1992-10-29 Verfahren und vorrichtung zum ermitteln des durchmessers einer spule an einer spinnstelle einer spinnmaschine

Publications (2)

Publication Number Publication Date
EP0556386A1 EP0556386A1 (de) 1993-08-25
EP0556386B1 true EP0556386B1 (de) 1995-05-10

Family

ID=25908802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92922746A Expired - Lifetime EP0556386B1 (de) 1991-11-05 1992-10-29 Verfahren und vorrichtung zum ermitteln des durchmessers einer spule an einer spinnstelle einer spinnmaschine

Country Status (5)

Country Link
EP (1) EP0556386B1 (cs)
JP (1) JPH06507455A (cs)
CZ (1) CZ281632B6 (cs)
DE (2) DE4235450A1 (cs)
WO (1) WO1993009280A1 (cs)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3750030B2 (ja) * 1995-07-19 2006-03-01 ウステル・テヒノロジーズ・アクチエンゲゼルシヤフト 紡績機において繊維物質の質量を検出するための方法及び装置
US5870890A (en) * 1995-07-19 1999-02-16 Zellweger Luwa Ag Method and apparatus for detecting the mass of fiber material in a spinning machine
DE19642705A1 (de) * 1996-10-16 1998-04-23 Hamel Ag Verfahren zur Herstellung einer mit einer vorgegebenen Garnmenge bewickelten, spindelgetriebenen Fadenspule
DE102007015695A1 (de) 2007-03-31 2008-10-02 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Betreiben einer Kreuzspulen herstellenden Textilmaschine
DE102008008083A1 (de) * 2008-01-28 2009-07-30 Wilhelm Stahlecker Gmbh Verfahren und Vorrichtung zum Herstellen von Kreuzwickelspulen
CZ306287B6 (cs) * 2015-04-07 2016-11-16 Rieter Cz S.R.O. Způsob ukončení předení na pracovním místě rotorového dopřádacího stroje
EP3828325A1 (de) * 2019-11-29 2021-06-02 Saurer Intelligent Technology AG Spinnstelle und luftspinnmaschine umfassend eine solche spinnstelle und verfahren zur erfassung einer einen soll-wert unterschreitenden fadenfestigkeit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147210A (en) * 1962-03-19 1964-09-01 Union Oil Co Two stage hydrogenation process
US3846278A (en) * 1971-09-02 1974-11-05 Lummus Co Production of jet fuel
US3767562A (en) * 1971-09-02 1973-10-23 Lummus Co Production of jet fuel
CS164449B1 (cs) * 1972-09-15 1975-11-07
US3988879A (en) * 1974-07-08 1976-11-02 Nuova San Giorgio S.P.A. Method and apparatus for yarn length measuring
DE3732966A1 (de) * 1987-09-30 1989-04-20 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum messen der laenge von von einem lieferwerk einer textilmaschine geliefertem material
DE3810365A1 (de) * 1988-03-26 1989-10-05 Schlafhorst & Co W Verfahren und vorrichtung zum ermitteln des spulenumfangs von kreuzspulen und zum verwerten des ergebnisses

Also Published As

Publication number Publication date
CZ281632B6 (cs) 1996-11-13
EP0556386A1 (de) 1993-08-25
CZ103893A3 (en) 1994-03-16
DE4235450A1 (de) 1993-05-06
JPH06507455A (ja) 1994-08-25
DE59202156D1 (de) 1995-06-14
WO1993009280A1 (de) 1993-05-13

Similar Documents

Publication Publication Date Title
EP0986659B1 (de) Verfahren und spinnmaschine zum herstellen von coregarn
EP2731898B1 (de) Spulmaschine
EP2831319A1 (de) Vorspinnmaschine mit einer anordnung zur detektion und entfernung von garnfehlern
DE102011053812A1 (de) Spinnmaschine und Verfahren zur Unterbrechung der Garnherstellung an einer Spinnmaschine
WO2007065506A1 (de) Verfahren zum anspinnen eines fadens sowie rotorspinnmaschine zur durchführung des verfahrens
DE3943600C2 (de) Verfahren und Vorrichtung zur Herstellung eines Mehrfachfadens sowie Mehrfachfaden
DE19917968B4 (de) Serviceaggregat für eine Kreuzspulen herstellende Textilmaschine
EP0556386B1 (de) Verfahren und vorrichtung zum ermitteln des durchmessers einer spule an einer spinnstelle einer spinnmaschine
EP2915910A1 (de) Verfahren und vorrichtung zum betreiben einer offenend-rotorspinnmaschine
DE3926227C2 (cs)
DE2227903C3 (de) Vorrichtung zum Herstellen bzw. Behandeln von textilem Garn
DE102007052190A1 (de) Qualitätsverbesserung eines ein Streckwerk verlassenden Faserverbandes
EP1975290B1 (de) Verfahren zum Betreiben einer Kreuzspulen herstellenden Textilmaschine
WO2009095043A1 (de) Verfahren und vorrichtung zum herstellen von kreuzwickelspulen
DE3928022A1 (de) Verfahren zum umspulen eines fadens mit einer festgelegten laenge in einer doppeldrahtzwirnmaschine
EP2626324A2 (de) Verfahren und Vorrichtung zur Ermittlung der erforderlichen Drehzahl einer Spulenantriebswalze
EP0947617B2 (de) Verfahren zum Herstellen eines Garnes und Spinnmaschine hierfür
DE3434873A1 (de) Oe-friktionsspinnmaschine
EP1225258A1 (de) Verfahren zum Herstellung eines Stapelfasergarnes
EP1377700B1 (de) Verfahren und vorrichtung zum betreiben einer zentrifugenspinn- und -zwirnmaschine
DE69114951T2 (de) Vorrichtung und Verfahren zum Auffangen und Vorbereiten des Fadenendes beim Wiederanspinnen in einer Offenendmaschine.
CH698280B1 (de) Verfahren und Vorrichtung zum Überwachen des Verschmutzungsgrades einer Rotorrille eines Spinnrotors einer Offenend-Spinnvorrichtung.
DE3932666C2 (de) Verfahren zum Betrieb einer Spinnmaschine, insbesondere Ringspinnmaschine, sowie Bedienroboter zur Durchführung des Verfahrens
DE2716017B1 (de) Fadenbremse an einem Fadenspeicher
EP3581687A1 (de) Verfahren bzw. vorrichtung zur beeinflussung des bewicklungszustandes von ringspinnkopsen

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: 19930507

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE IT LI

17Q First examination report despatched

Effective date: 19941011

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

REF Corresponds to:

Ref document number: 59202156

Country of ref document: DE

Date of ref document: 19950614

ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19951031

Ref country code: CH

Effective date: 19951031

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Payment date: 19971124

Year of fee payment: 6

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

Ref country code: DE

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

Effective date: 19990803

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 NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051029