EP2500306B1 - Textilmaschine sowie Verfahren zu deren Betrieb - Google Patents

Textilmaschine sowie Verfahren zu deren Betrieb Download PDF

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Publication number
EP2500306B1
EP2500306B1 EP12153558.7A EP12153558A EP2500306B1 EP 2500306 B1 EP2500306 B1 EP 2500306B1 EP 12153558 A EP12153558 A EP 12153558A EP 2500306 B1 EP2500306 B1 EP 2500306B1
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EP
European Patent Office
Prior art keywords
fiber material
sensor
storage device
contact
textile machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12153558.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2500306A9 (de
EP2500306A2 (de
EP2500306A3 (de
Inventor
Michael Strobel
Dr. Klaus-Uwe Moll
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 GmbH
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Publication date
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Publication of EP2500306A2 publication Critical patent/EP2500306A2/de
Publication of EP2500306A9 publication Critical patent/EP2500306A9/de
Publication of EP2500306A3 publication Critical patent/EP2500306A3/de
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Publication of EP2500306B1 publication Critical patent/EP2500306B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/76—Depositing materials in cans or receptacles
    • B65H54/80—Apparatus in which the depositing device or the receptacle is rotated
    • 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
    • B65H2701/311—Slivers

Definitions

  • the present invention relates to a method for operating a textile machine, in particular a spinning preparation machine, preferably a track, carding or comber, is deposited in the fiber material in the region of an output of the textile machine by a storage device, such as a storage tray with a defined conveying speed in a pot and a corresponding textile machine, in particular spinning preparation machine, preferably in the form of a line, carding or combing machine, with an output for fiber material and arranged in the region of the output storage device, such as a storage tray for depositing the fiber material at a defined conveying speed in at least one pot.
  • a storage device such as a storage tray with a defined conveying speed in a pot
  • spinning preparation machine preferably in the form of a line, carding or combing machine
  • Spinning preparation machines such as, for example, stretching, carding machines or combers, are used, inter alia, to uniformize the fiber material presented.
  • the spinning preparation machine usually has a number of drafting elements, usually in the form of a plurality of mutually arranged rollers between which the fiber material is guided along the respective so-called nip lines in the transverse direction of the strip. Between the rollers, the fiber material is finally stretched and at the same time evened out.
  • the fibrous material which is usually in the form of a sliver, is finally deposited in a corresponding container, a so-called jug, whereby the fibrous material is usually looped through a depositing device, for example a storage tray, in a circular or elliptical manner.
  • a depositing device for example a storage tray
  • the filled cans are then replaced by appropriately empty cans and sent to a subsequent textile machine, such. B. a spinning machine, passed.
  • the cans used usually have one or more coil springs, which press from below against the can bottom and should always keep it in an optimal position for storage.
  • cans of rectangular cross section are known in which usually two coil springs are arranged side by side in the can longitudinal direction.
  • a pantograph or safety lattice system is usually provided in these cans.
  • the can bottom of an empty jug is ideally raised at least to the upper jug edge when the tray is started in order to ensure guidance of the fiber material by the said friction.
  • the can bottom is finally lowered continuously during the storage process by the weight of the contents, so that the guide is always maintained.
  • the fiber material deposited at the beginning of the filling process has a relatively low quality in the cases mentioned, since there is no sufficient frictional engagement between the fiber material and the depositing device or the can bottom.
  • the WO 2006/008011 discloses a method of operating a textile machine according to the preamble of claim 1 and a textile machine according to the preamble of claim 9.
  • This object is achieved in terms of the method in that during the deposition of the fiber material by means of a sensor, an electrical signal is generated as soon as a contact between the deposited in the pot fiber material and the storage device, and that the conveying speed of the storage device is controlled taking into account the signal.
  • the fact can be taken into account in a simple yet reliable manner that a controlled storage from a certain conveying speed is only possible if a contact between the storage device, for. B. in the area of the underside of a storage tray, and the already stored in the pot fiber material, since the fiber material only from this point learns from all sides an appropriate leadership.
  • the time of contact is a crucial factor, which can now be considered with the help of the method according to the invention directly in the control of the conveying speed.
  • the detection of the signal does not necessarily have to result in the immediate change of the conveying speed. So it is also conceivable that the signal strength is taken into account and only after a certain signal strength or after a certain period of time from the detection of the signal, a corresponding adjustment takes place. This ensures that the conveying speed is not increased too soon and reliable storage of the fiber material can be ensured.
  • the conveying speed is increased as soon as there is contact between the deposited fiber material and the depositing device.
  • the fiber material from this point in time is guided essentially from all sides, so that the sliver can no longer slip uncontrollably into the jug during storage or, in the worst case, can be thrown out of the jug.
  • the storage device is at the beginning of the filing of the fiber material, in particular in an empty can, operated at a first conveying speed and from the detection of the contact with at least a second conveying speed, wherein the first conveying speed is less than the at least second conveying speed.
  • the conveying speed of the depositing device is now kept at a first low level only until a contact between deposited fiber material and depositing device is actually detected.
  • the achievement of this contact finally serves as a trigger signal to increase the conveying speed to a second value, which finally allows the highest possible production speed of the textile machine.
  • the conveying speed can of course be increased in any finely divided individual steps to their final amount. For example, it would be conceivable to initially store the sliver at a first, low conveying speed in order to increase the conveying speed gradually or gradually until the sensor signals contact between the depositing device and the fiber material. From this point on, finally, an increase to the maximum conveying speed is possible because the necessary guidance of the sliver is ensured.
  • the signal is generated with the aid of a force measuring and / or pressure sensor, a touch sensor, a proximity sensor, an optical sensor and / or a sensor for determining the friction between fiber material and depositing device.
  • sensors are available in various designs and can thus be selected depending on the type of textile machine.
  • other sensors such as sensors that respond to bending, conceivable, as far as it allows the design of the storage device.
  • different sensors can be used together to increase the reliability of the detection.
  • the sensors it should also be made clear in general that they send a signal for controlling the conveying speed to the controller when the fiber material comes into contact with the depositing device, since this is an indication that a guide of the fiber band passes through the depositing device or is imminent.
  • the sensors may be configured to generate a signal as soon as they come into contact with the fiber material deposited in the pot.
  • a contactless monitoring of the fiber material is possible.
  • corresponding transmitting and / or receiving units of an optical sensor preferably a light barrier, may be placed just above the can or just below the output of the depositing device. As soon as the sensor generates a permanent signal, it is this is an indication that the fiber material deposited in the jug is in contact with the depositing device.
  • the pressing force is taken into account, which exerts the deposited fiber material on the depositing device.
  • a certain frictional engagement between the fiber material and the can bottom or depositing device must be present.
  • this frictional engagement is proportional to the contact pressure exerted by the deposited fiber material on at least one component of the storage device, wherein the contact force in turn results from the spring force with which the can bottom is pressed in the direction of storage device.
  • the contact pressure is determined continuously or at defined time intervals. While continuous measurement allows for the most accurate adjustment of the conveying speed, in some cases it may also be sufficient to determine the contact force only at the beginning or end of the tray, especially to monitor these critical phases.
  • the sensor which detects the contact between the fiber material and the depositing device, is designed to determine the contact force, so that no additional measurement is required to measure this size Sensor is necessary.
  • a pressure sensor can be used. This in turn provides a signal as soon as the sliver comes into contact with the depositing device, wherein the signal strength or type finally changes proportionally to the contact force of the fiber material and thus allows a conclusion about the amount of contact force.
  • the contact force is averaged over a certain period of time and the resulting mean value used as the basis for the control of the conveying speed. Since the fiber material is usually stored in loops, this has an uneven surface in the pot, so that the contact pressure on the sensor is subject to fluctuations. If, however, the contact force is determined over a certain period of time, a large number of measured values are obtained, which can finally be averaged so that a meaningful measured variable is available.
  • the determined contact pressure is processed by means of a controller and from this a corresponding course of the conveying speed is calculated.
  • this results in the advantage that the most uniform regulation of the conveying speed can be realized.
  • the conveying speed is reduced again when a defined contact pressure is reached. So will the Pressing force when approaching the maximum filling level of the pot significantly increase, so this is a sign of reaching the storage end. Also at this stage, it may be advantageous to throttle the conveying speed to achieve a clean completion of the tray.
  • the decisive event here may be the sudden increase in the contact force or a specific maximum value thereof.
  • the filing of the fiber material is completely stopped upon reaching a defined contact pressure, wherein the corresponding contact force can be set either in advance as an absolute value or as a difference to an initial value when filling the pot, so that the actual spring force of respective pot is considered.
  • the textile machine according to the invention is finally distinguished by the fact that the storage device is assigned at least one sensor which is designed to generate an electrical signal as soon as there is contact between the fiber material deposited in the can and the storage device, the sensor having a control in FIG Connection is formed, the conveying speed of the storage device under consideration of the signal.
  • the result is a textile machine that allows a particularly efficient and reliable storage of the fiber material.
  • the controller is designed to increase the conveying speed as soon as there is contact between the deposited fiber material and the depositing device.
  • an additional guidance of the fiber material by the storage device arises from this point on. An increase in the conveying speed therefore does not result in an uncontrolled filing, as would be the case at the beginning of the filing process. Rather, the additional guidance allows a significant increase in the production speed of the textile machine, since from the contact time a faster storage is possible.
  • the depositing device to be operable with at least one second conveying speed at the beginning of depositing the fiber material, in particular into an empty can, with a first conveying speed and upon detection of the contact between deposited fiber material and depositing device, wherein the first conveying speed is lower as the at least second conveying speed.
  • the depositing device operable with at least one second conveying speed at the beginning of depositing the fiber material, in particular into an empty can, with a first conveying speed and upon detection of the contact between deposited fiber material and depositing device, wherein the first conveying speed is lower as the at least second conveying speed.
  • the senor is designed to determine the contact pressure, which exerts the deposited fiber material on the storage device.
  • the conveying speed can always be adjusted by the consideration of the contact pressure to the actual filling level of the pot, the counterforce, which acts by a the can bottom associated spring system on the can bottom, does not have to be known directly. Rather, this counterforce is indirectly taken into account by the contact pressure, the conveying speed of the storage device can always be kept at a maximum value, which just allows a clean filing.
  • the controller is designed to reduce the conveying speed or to stop the filing of the fiber material as soon as the deposited fiber material exerts a defined contact pressure on the depositing device. As a result, it can always be ensured in this way that the conveying speed is always only so high that a clean filing of the fiber material is possible.
  • the senor is a force measuring and / or pressure sensor, a touch sensor, a proximity sensor, an optical sensor and / or a sensor for determining the friction between the fiber material and the storage device, with respect to the advantages of the above statements is referenced.
  • the at least one sensor is arranged in or on an underside of a component of the storage device, so that it can be brought into contact with an upper layer of the fiber material deposited in the can.
  • a reliable and direct measurement of the contact force is possible, of course, other placements are conceivable.
  • the contact force can be detected over a certain period of time with the aid of the controller and converted into a mean value, and the resulting mean value can be used as a basis for regulating the conveying speed.
  • measuring fluctuations of the sensors can be effectively compensated, so that particularly reliable values for controlling the conveying speed are available.
  • statistical data can be taken into account, so that the measured values can also be included in the regulation of the conveying speed for any length of time.
  • the textile machine has further sensors that are in contact with the controller and with the help of additional sizes, such as type and / or dimensions of the jug, the type of fiber material, the length and / or the mass of the fiber material deposited in the pot, the production speed of the textile machine and / or environmental conditions, such as temperature or humidity, are detectable and can be taken into account in the regulation of the conveying speed.
  • additional sizes such as type and / or dimensions of the jug, the type of fiber material, the length and / or the mass of the fiber material deposited in the pot
  • the production speed of the textile machine and / or environmental conditions such as temperature or humidity
  • a further advantage is when the storage device has a drive whose drive speed can be varied continuously or stepwise to allow the most accurate adjustment of the storage speed.
  • the at least one sensor can be activated or deactivated.
  • FIG. 1 shows schematically a route in side view as an example of a textile machine according to the preamble of the independent claims.
  • a sliver 2 is taken from several so-called feed cans 1 and fed to the actual drafting system 3 of the route.
  • the drafting system 3 usually consists of three or more pairs of rollers 4, each comprising a lower roller and a top roller and cause by different speeds a delay and thus a homogenization of the sliver 2.
  • the stretched fiber material 5 is finally fed by means of a pair of calender rollers 6 to a rotating storage tray 7 and placed in a can 8 in the shape of a loop.
  • this has a spring system 9, with the help of the can bottom 10 is pressed in the direction of storage tray 7.
  • This frictional causes a leadership of the fiber material 5, so as to ensure that this can be stored in uniform loops in the can 8.
  • the can bottom 10 is finally moved steadily downwards by the weight of the fiber material 5, so that the contact force which acts on the fiber material 5 or the storage tray 7 remains, in the ideal case, constant.
  • the can bottom 10 can no longer be in its uppermost filling position even when the jug 8 is empty Fig. 1 shown is brought. If now the fiber material 5 with too high conveying speed discharged into the can 8, then there is an uneven storage or in the worst case to a spinning out of the fiber material 5, so that a machine stop is inevitable.
  • the conveying speed of the depositing device is preferably initially kept at a first low level until a certain contact pressure, resulting in a defined signal strength, is achieved by the initially deposited fiber material 5.
  • the achievement of this previously defined contact force finally serves as a start signal to increase the conveying speed to a second value, which finally allows the highest possible production speed of the textile machine.
  • the measurement of the contact force is expediently carried out with the aid of a sensor 11, in particular with the aid of a force measuring sensor, such as FIG. 2 shows, for example, is integrated in the bottom of the storage tray 7.
  • a sensor 11 in particular with the aid of a force measuring sensor, such as FIG. 2 shows, for example, is integrated in the bottom of the storage tray 7.
  • the aid of this sensor 11 it is finally possible to determine the contact force either continuously or at defined time intervals via a control, whereby the measured values can also be correlated with other variables, such as the type or size of the can, before controlling the conveying speed.
  • FIG. 2 shows only a single sensor, it is also possible to equip the storage tray 7 with a plurality of similar or different types of sensors.
  • FIG. 3 a possible curve of contact pressure F (curve A) and conveying speed v (curve B) as a function of time t shown.
  • the conveying speed of the depositing plate 7 at the beginning of the can filling (t 1 ) is first increased up to a time t 2 to a constant value v 1 , which ensures that the fiber material 5 is deposited cleanly in the can 8 Even if the can bottom 10 should not have reached its intended filling level.
  • a time t 3 is finally reached, in which the fiber material 5 comes into contact with the storage tray 7 and generates a contact force, resulting in a signal detected by the sensor 11.
  • the conveying speed of the storage device and thus the production speed of the track can be increased by a controller until this reaches an amount v 2 (time t 6 ), which corresponds to a maximum possible production speed.
  • FIGS. 4 to 6 a further possibility to monitor the progression of the fiber material deposit and in this case a possible contact between the fiber material 5 already deposited in the can 8 and the depositing device, which in FIG. 5 is designed as a storage tray 7 (on the representation of constructive details of Ablagetellers7, which of course also has a corresponding opening for the passage of the fiber material supplied from above 5, was deliberately omitted).
  • the senor 11 may be formed as a light barrier, which includes a light source 12 and a corresponding reflector 13 in the example shown. With the help of the light barrier is thus detectable whether in the beam path (dashed line) is fibrous material 5 or not.
  • the light reflected by the reflector 13 is detected by means of a detector (not shown) which is placed in the example shown together with the light source 12 on one side of the storage device (of course, the reflector 13 can also be replaced by a detector, so that detector and light source 12 are disposed on different sides of the storage device).
  • the light beam is permanently interrupted, so that the relevant for the control of the conveying speed of the tray 7 contact between fiber material 5 and storage device can be reliably detected.
  • the tray 7 it would eventually be possible to rotate the tray 7 only about a stationary axis of rotation and to realize the filing of the fiber material 5 by a superposition of the rotation of the tray 7 with a corresponding rotation of the pot 8.
  • the axis of rotation of the pot 8 would be in this case preferably parallel to the axis of rotation of the tray 7, resulting in the in FIG. 6 shown loop shape of the discarded sliver.

Landscapes

  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Looms (AREA)
EP12153558.7A 2011-03-17 2012-02-02 Textilmaschine sowie Verfahren zu deren Betrieb Active EP2500306B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011005709A DE102011005709A1 (de) 2011-03-17 2011-03-17 Textilmaschine sowie Verfahren zu deren Betrieb

Publications (4)

Publication Number Publication Date
EP2500306A2 EP2500306A2 (de) 2012-09-19
EP2500306A9 EP2500306A9 (de) 2013-01-02
EP2500306A3 EP2500306A3 (de) 2013-08-28
EP2500306B1 true EP2500306B1 (de) 2014-09-17

Family

ID=45560756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12153558.7A Active EP2500306B1 (de) 2011-03-17 2012-02-02 Textilmaschine sowie Verfahren zu deren Betrieb

Country Status (6)

Country Link
EP (1) EP2500306B1 (enrdf_load_stackoverflow)
JP (1) JP5922436B2 (enrdf_load_stackoverflow)
CN (1) CN102674080B (enrdf_load_stackoverflow)
BR (1) BR102012003446B1 (enrdf_load_stackoverflow)
DE (1) DE102011005709A1 (enrdf_load_stackoverflow)
IN (1) IN2012DE00380A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014113000A1 (de) * 2014-09-10 2016-03-10 Rieter Ingolstadt Gmbh Beschichtung für einen Drehteller
CN106739007B (zh) * 2017-01-12 2019-04-26 张彤 一种纤维缠绕铺层的工艺设备
CN106712634A (zh) * 2017-02-11 2017-05-24 刘慧� 一种调速装置及纺织车间控制系统
TWI825325B (zh) * 2019-06-20 2023-12-11 義大利商潘泰克紡織機械公司 具有織物堆積站之類型的織物處理機以及用於控制織物處理機的堆積站上的堆積量的方法
CN113201826A (zh) * 2020-01-31 2021-08-03 邱丽遐 一种监控条筒须条状态的装置及其方法

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
JPS51109337A (ja) * 1975-03-17 1976-09-28 Toyoda Automatic Loom Works Bokinosokudoseigyosochi
GB2102034B (en) * 1981-06-24 1985-04-11 Wool Dev Int Yarn reservoir
DE3621794A1 (de) 1986-06-28 1988-01-07 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zur ablage eines faserbandes in einer spinnkanne bei einer spinnereivorbereitungsmaschine, insbesondere einer strecke
US5575040A (en) 1993-05-14 1996-11-19 Trutzschler Gmbh & Co. Kg Apparatus for controlling sliver deposition in a coiler can
DE19728202A1 (de) * 1997-07-02 1999-01-07 Schlafhorst & Co W Verfahren zur Kontrolle des Füllstands von Faserbandkannen
US6131785A (en) * 1998-08-27 2000-10-17 E. I. Du Pont De Nemours And Company Air jet piddling
US20010022072A1 (en) * 2000-03-14 2001-09-20 Howa Machinery, Ltd. Single-sided ring spinning frame with sliver accommodating cans, and method for supplying slivers to such frame
DE10147819A1 (de) * 2000-10-21 2002-07-25 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zur Höhenverstellung des Kannentellers einer Spinnkanne
JP2004277022A (ja) * 2003-03-12 2004-10-07 Yaskawa Electric Corp 糸を移すための糸振込方法および糸振込装置
DE102004035361A1 (de) * 2004-07-21 2006-03-16 Saurer Gmbh & Co. Kg Kannenstock zum schlingenförmigen, kreisförmig versetzten Ablegen von textilen Faserbändern in Kannen
DE102006044682A1 (de) * 2006-09-21 2008-03-27 Rieter Ingolstadt Spinnereimaschinenbau Ag Vorrichtung für eine Spinnereivorbereitungsmaschine sowie Spinnereivorbereitungsmaschine

Also Published As

Publication number Publication date
BR102012003446A2 (pt) 2014-01-07
EP2500306A9 (de) 2013-01-02
EP2500306A2 (de) 2012-09-19
DE102011005709A1 (de) 2012-09-20
JP2012193044A (ja) 2012-10-11
JP5922436B2 (ja) 2016-05-24
EP2500306A3 (de) 2013-08-28
CN102674080A (zh) 2012-09-19
CN102674080B (zh) 2016-09-14
BR102012003446B1 (pt) 2020-01-28
IN2012DE00380A (enrdf_load_stackoverflow) 2015-05-15

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