EP0971058B1 - Saugluftanlage einer Textilmaschine - Google Patents
Saugluftanlage einer Textilmaschine Download PDFInfo
- Publication number
- EP0971058B1 EP0971058B1 EP99107226A EP99107226A EP0971058B1 EP 0971058 B1 EP0971058 B1 EP 0971058B1 EP 99107226 A EP99107226 A EP 99107226A EP 99107226 A EP99107226 A EP 99107226A EP 0971058 B1 EP0971058 B1 EP 0971058B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction unit
- unit according
- source
- control
- spark sensor
- 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.)
- Revoked
Links
- 239000004753 textile Substances 0.000 title claims description 6
- 230000003287 optical effect Effects 0.000 claims description 27
- 238000007383 open-end spinning Methods 0.000 claims description 21
- 238000011156 evaluation Methods 0.000 claims description 15
- 238000012360 testing method Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims 2
- 239000000835 fiber Substances 0.000 description 12
- 239000002699 waste material Substances 0.000 description 6
- 230000002950 deficient Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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
- D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
- D01H4/36—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls with means for taking away impurities
Definitions
- the invention relates to a suction air system of a textile machine, especially a rotor spinning machine, with at least one suction air duct and with at least a spark sensor for the detection of a spark flight within a measuring section of the suction air system, the includes a measuring device, the sensing area at least partially overlaps the measuring section, and the at least one electromagnetic receiver Has waves that when a spark occurs in the sensing area generates an output signal, and a control and evaluation circuit for the Measuring device.
- Suction air systems of the generic type are known.
- a fire sensor described the one in a suction air system Rotor spinning machine is arranged.
- the task such a fire sensor is inside of a suction air duct transported fiber flight the rotor spinning machine for possible sparking to monitor.
- sparking can for example, arise from the fact that a rotor of Rotor spinning machine is overheating and this causes it to inflammation of fibers can occur.
- Inflamed fibers can pass through the suction air duct relatively large distances, for example in a Air conditioning, to be transported, making it too substantial Fire damage can occur.
- spark sensors with an optical receiver for to equip electromagnetic waves, in particular infrared signals emitted by a spark sensed.
- a photo element for example a photodiode
- electromagnetic waves in an electrical signal convert.
- This electrical signal is controlled by a and evaluation circuit can be evaluated.
- the photo elements with a quiescent current energized, which after incidence of an electromagnetic Wave changes into a switching current, the Switching current triggers an event-dependent action. This action can, for example, alert you Operator of the rotor spinning machine or an automatic Switch off the rotor spinning machine, the Activation of an extinguishing device or the like his.
- the invention is therefore based on the object To create suction air system of the generic type, which in a simple way increases operational reliability given is.
- this object is achieved by a suction air system with the features mentioned in claim 1 solved.
- the optical receiver at least a source for generating electromagnetic Waves is assigned, and the at least one source can be controlled in such a way that targeted triggering of the spark sensor can be advantageous check the optical components of the spark sensor, so that in addition to checking the electrical or electronic components of the Spark sensor, the optical components can be checked are, so that a spark detection of the spark sensor becomes much safer.
- the at least one source of electromagnetic Waves can be switched on periodically, whereby preferably during the periodically repeating Self test of the optical components of the Spark sensor the triggering function of the control and Evaluation circuit is hidden. This leaves in a simple manner at determinable intervals a check of the optical components of the spark sensor perform, triggering the Switching current (alarm current) of the spark sensor as a result checking the optical components of the measuring device not to trigger an alarm signal (False alarm) leads.
- the source be electromagnetic Waves is a luminescent diode, which is preferred via the control and evaluation circuit of the measuring device is controllable. This makes it easier Way the periodic activation of the source combine with hiding the alarm function, without a large amount of circuitry necessary is.
- the source for generating electromagnetic Waves and the spark sensor in one Housing are arranged. This will make it possible to have a compact design of the spark sensor create, preferably a common electrical Interface with the control and evaluation circuit the spark sensor can be used. hereby this results in a simplified assembly effort because the Arrangement and electrical connection additional Components is therefore not necessary.
- Figure 1 is a section of a suction air system 10 for at least one rotor spinning machine.
- the suction air system 10 can have several rotor spinning machines each with a large number of spinning units be connected. Structure and mode of operation of Suction air system and the rotor spinning machines are known so that within the scope of the present description this should not be discussed in more detail.
- through the suction air system 10 become the rotor spinning machines applied with a vacuum by means of the fiber waste, Dirt or the like from the rotor spinning machines be sucked off.
- the suction air system 10 has a so-called End unit 12, in the one with a not shown Suction air source connected suction air duct 14 empties. Furthermore, the end unit 12 leads to the suction air ducts leading individual rotor spinning machines 16. A section 18 of the suction air duct 14 forms a measuring section 20 for a spark sensor 22, the Structure and operation with reference to Figure 2 in more detail is explained.
- the spark sensor 22 is via a electrical connecting line 24 with a control unit 26 connected, which is a control and evaluation circuit for the spark sensor 22 includes.
- the fiber waste accumulating on the rotor spinning machines is guided with the suction air flow to a filter or separating device.
- a sliver of the rotor spinning machine is not switched off, the rotor of the rotor spinning machine can be over-fed so that it overheats.
- the resulting frictional heat can be sufficient to ignite the fiber waste carried away by the suction air flow. This would then lead as glowing fiber waste via the suction channels 16 and 14 to the filter or separating device and can lead to ignition of the collected fiber waste there.
- the fiber flight is monitored in the area of the measuring section 20 by means of the spark sensor 22, wherein electromagnetic waves emitted by glowing fibers are detected in the infrared area by an optical receiver.
- This makes it possible to detect flying sparks within the suction air system 10 and to initiate appropriate countermeasures via the control unit 26.
- These can consist, for example, of an optical and / or acoustic alarm so that operating personnel of the rotor spinning machines can initiate targeted countermeasures.
- the rotor spinning machines can be switched off automatically.
- the air duct direction of the suction air system 10 can be switched such that when glowing fiber fly occurs, it is not transported in the direction of the filter and separating device, but can be brought into a separate storage room, which may be equipped with extinguishing agents.
- the spark sensor 22 is shown in a block diagram in FIG. This comprises an optical receiver 28, the sensing area of which is directed into the measuring section 20.
- the sensing area includes, for example, a detection angle of 110 °, within which glowing fiber waste transported in the measuring section 20 is recognized.
- the spark sensor 22 is connected via the electrical connecting line 24 to a control and evaluation circuit 30, which is only shown in part here.
- the connecting line 24 is designed as a four-wire line, a first wire 32 being used to provide a supply voltage U V of, for example, 24 V DC voltage.
- a second wire 34 and a third wire 36 serve to tap an electrical signal from the optical receiver 28.
- the optical receiver 28 is, for example, a photodiode, which drives a quiescent current, for example 20 mA, via a current interface. If a spark occurs in the measurement section 20, the optical receiver 28 receives infrared, electromagnetic waves emitted by the spark and converts it into an electrical signal. This electrical signal switches the quiescent current into an alarm current (switching current), for example 4 mA, which can be evaluated by the control unit 26.
- An amplifier circuit 38 can be provided to amplify the electrical signals generated by the optical receiver 28.
- the spark sensor 22 also includes a source 40 for Generation of electromagnetic waves, the Source 40 operates in a wavelength range that the receivable wavelengths of the optical receiver 28, in the example in the infrared range.
- the source 40 is a luminescent diode (LED diode), educated.
- the Connection line 24 is the source 40 with a Control pulse controllable.
- an amplifier circuit 44 may be provided his.
- the Control and evaluation circuit 30 comprises a timer 48, on the one hand a defined pulse length and on the other hand a pulse interval adjustable is. The.
- Pulse length determines the on time of the Source 40 and is at least 1.1 times, in particular at least 1.5 times a response time of the optical receiver 28. This ensures that the generated infrared flash 46 from the optical receiver 28 is actually recognized.
- the Distance between successive pulses can be specified selectively and is, for example, in Seconds, minutes, hours or the like.
- Simultaneously with the pulse signal is from the timing element 48 generates a control signal 50.
- the control signal 50 gives the control unit 26 information, that an infrared detected by the spark sensor 22 Signal is not caused by flying sparks within the Suction air system was caused, but this through targeted and defined switching on of the Source 40 was generated. This can trigger an alarm by the control unit 26 for the pulse duration hidden, that is, suppressed.
- targeted control of the source 40 can thus a self-test of the spark sensor 22, in particular of its optical components, i.e. the optical receiver 28, take place.
- a periodic check of the test impulses the function of the spark sensor 22 possible, without this, for example, from the suction air system 10 must be removed.
- the optical function of the spark sensor 22 can Checking the electrical function in a known manner Way by monitoring the quiescent current becomes. If the quiescent current exceeds a set one A value, for example 20 mA, can be set to one Short circuit within the connecting line 24 or be closed within the spark sensor 22. the quiescent current is interrupted, for example, can be due to an open circuit of an electrical line be recognized.
- the control unit 26 comprises, for example, an optical one Indicator indicating a failure of the spark sensor 22 displays. A corresponding one can then be made by the operating personnel Replacement of the defective spark sensor 22 be prompted. Furthermore, an automatic error signal to a central processing unit, which the Control of the rotor spinning machines is used to be given so that in addition to documentation of the error signal at the same time on the defective spark sensor 22 can be pointed out.
- the source 40 instead of providing the test impulses via the Timing element 48 or additionally can be activated the source 40 also via a separate switching means done by an operator. This will always a manual check, in addition respectively regardless of the set repetition frequency of the test impulses possible. For example during an inspection tour by pressing of the switching means the function of the spark sensor 22 can be tested.
- the control unit 26 can corresponding acknowledgment signals, for example optically, provide for the operator so that this detects whether the spark sensor 22 is OK or is defective.
- the optical receiver 28 as well as the source 40 and the Amplifier circuits 38 and 44 are in common Housing 52, for example by a cylindrical plastic tube is formed, arranged. This is a very compact design possible.
- the connection of the spark sensor 22 with the Control unit 26 takes place via only one, here four-wire connection line 24, so that a simple Connecting the spark sensor 22 via a Interface is possible.
- the source 40 to be arranged independently of the spark sensor 22, for example the spark sensor 22 in the measuring section 20 diametrically opposite. This is also a self-test of the spark sensor 22 possible, the mode of operation the same remains.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Treatment Of Fiber Materials (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Description
- Figur 1
- eine schematische Ansicht der Anordnung eines Funkensensors an der Saugluftanlage einer Rotorspinnmaschine und
- Figur 2
- ein Ersatzschaltbild eines Funkensensors.
Mittels des Funkensensors 22 wird im Bereich der Meßstrecke 20 der Faserflug überwacht, wobei von glimmenden Fasern abgestrahlte elektromagnetische Wellen im Infrarotbereich durch einen optischen Empfänger erfaßt werden. Hierdurch wird es möglich, einen Funkenflug innerhalb der Saugluftanlage 10 zu erkennen und über das Steuergerät 26 entsprechende Gegenmaßnahmen einzuleiten. Diese können beispielsweise in einer optischen und/oder akustischen Alarmgebung bestehen, so daß Bedienpersonal der Rotorspinnmaschinen gezielte Gegenmaßnahmen einleiten kann. Ferner kann eine automatische Abschaltung der Rotorspinnmaschinen erfolgen. Darüber hinaus kann eine Umschaltung der Luftführungsrichtung der Saugluftanlage 10 derart erfolgen, daß bei Auftritt von glimmendem Faserflug diese nicht in Richtung der Filter- und Abscheideeinrichtung transportiert werden, sondern in einen separaten, gegebenenfalls mit Löschmitteln ausgerüsteten Vorratsraum bringbar sind.
Claims (16)
- Saugluftanlage einer Textilmaschine, insbesondere einer Rotorspinnmaschine, mit wenigstens einem Saugluftkanal und mit wenigstens einem Funkensensor zur Detektion eines Funkenfluges innerhalb einer Meßstrecke der Saugluftanlage, der eine Meßeinrichtung umfaßt, deren Sensierbereich zumindest teilweise die Meßstrecke überschneidet, und die wenigstens einen Empfänger elektromagnetischer Wellen aufweist, der bei Eintritt eines Funkens in den Sensierbereich ein Ausgangssignal generiert, und einer Ansteuer- und Auswerteschaltung für den Funkensensor, dadurch gekennzeichnet, daß dem optischen Empfänger (28) wenigstens eine Quelle (40) zum Generieren elektromagnetischer wellen zugeordnet ist, und die wenigstens eine Quelle (40) derart ansteuerbar ist, daß ein gezieltes Auslösen des Funkensensors (22) erfolgt.
- Saugluftanlage nach Anspruch 1, dadurch gekennzeichnet, daß die wenigstens eine Quelle (40) periodisch einschaltbar ist.
- Saugluftanlage nach Anspruch 2, dadurch gekennzeichnet, daß eine Einschaltzeit der Quelle (40) mindestens einer 1,1fachen, insbesondere mindestens einer 1,5fachen Ansprechzeit des optischen Empfängers (28) entspricht.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die wenigstens eine Quelle (40) und der Funkensensor (22) in einem gemeinsamen Gehäuse (52) integriert sind.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Empfänger (28) ein Photoelement, insbesondere eine Photodiode, ist.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Quelle (40) eine Sendediode (LED-Diode) ist.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Quelle (40) und der Empfänger (28) in einem Infrarotbereich arbeiten.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Quelle (40) über eine separate Steuerleitung (42) ansteuerbar ist.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Quelle (40) durch die Ansteuer- und Auswerteschaltung (30) ansteuerbar ist.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Quelle (40) und der Funkensensor (22) durch eine gemeinsame Verbindungsleitung (24) mit der Ansteuer- und Auswerteschaltung (30) verbindbar sind.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Quelle (40) manuell ansteuerbar ist.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß durch den Funkensensor (22) wenigstens eine Sicherheitseinrichtung der Textilmaschine aktivierbar ist.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß durch ein die Ansteuer- und Auswerteschaltung aufweisendes Steuergerät (26) wenigstens eine oder mehrere der nachfolgenden Aktionenein akustisches Alarmsignal,ein optisches Alarmsignal,eine Umschaltung des Saugluftkanales (14) der Saugluftanlage (10),eine automatische Abschaltung wenigstens einer Textilmaschine,eine automatische Dokumentation,eine Anzeige eines Fehlers in einer zentralen Steuereinrichtung der Textilmaschinen, auslösbar ist.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß durch die Ansteuer- und Auswerteschaltung (30) zusätzlich ein elektrischer Test des Funkensensors (22) durchführbar ist, wobei ein Ruhestrom des Empfängers (28) überwacht wird.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Ansteuerund Auswerteschaltung (30) ein Zeitglied (48) umfaßt, mittels dem ein Steuerimpuls (Testimpuls) zur Ansteuerung der Quelle (40) beeinflußbar ist.
- Saugluftanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Zeitglied (48) gleichzeitig mit jedem Steuerimpuls ein Steuersignal (50) generiert, mittels dem eine Alarmauslösung für die Impulsdauer des Steuerimpulses ausblendbar ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19830394A DE19830394A1 (de) | 1998-07-08 | 1998-07-08 | Saugluftanlage einer Textilmaschine |
| DE19830394 | 1998-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0971058A1 EP0971058A1 (de) | 2000-01-12 |
| EP0971058B1 true EP0971058B1 (de) | 2003-02-05 |
Family
ID=7873266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99107226A Revoked EP0971058B1 (de) | 1998-07-08 | 1999-04-14 | Saugluftanlage einer Textilmaschine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6317645B1 (de) |
| EP (1) | EP0971058B1 (de) |
| JP (1) | JP2000064134A (de) |
| CN (1) | CN1210450C (de) |
| DE (2) | DE19830394A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853907A (zh) * | 2012-08-29 | 2013-01-02 | 昆山市万丰制衣有限责任公司 | 一种用于纺织机器的火花检测设备 |
| EP3175025B1 (de) * | 2014-07-31 | 2018-12-19 | Camozzi Digital S.r.l. | Verfahren zur überwachung physikalischer parameter von textilmaschinen |
| DE102018126149A1 (de) * | 2018-10-22 | 2020-04-23 | Maschinenfabrik Rieter Ag | Verfahren zum Betreiben einer Spinnmaschine sowie Spinnmaschine |
| CN109295569B (zh) * | 2018-11-26 | 2021-09-28 | 江南大学 | 具有自清洁功能的负压风箱 |
| CN112127026A (zh) * | 2020-10-10 | 2020-12-25 | 安徽华茂纺织股份有限公司 | 清梳联设备故障自动报警装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3926665A (en) * | 1973-06-04 | 1975-12-16 | Parks Cramer Ltd | Method and apparatus for collecting fiber waste from open-end spinning machines |
| CH619991A5 (de) * | 1977-06-09 | 1980-10-31 | Rieter Ag Maschf | |
| CH676475A5 (de) * | 1988-10-28 | 1991-01-31 | Jossi Hans Praezisionsmechanik | |
| DE3930450A1 (de) * | 1989-09-12 | 1991-03-21 | Zinser Textilmaschinen Gmbh | Verfahren und vorrichtung zur ueberpruefung der funktionsfaehigkeit einzelner, arbeitselemente steuernder sensoren eines entlang einer textilmaschine, insbesondere spinnmaschine verfahrbaren bedienlaeufers |
| DD292076A5 (de) * | 1990-02-08 | 1991-07-18 | Textilmaschinenbau Grossenhain Bfsr,De | Verfahren zur opto-elektronischen ueberwachung fadenfoermiger materialien |
| DE29604552U1 (de) * | 1995-05-05 | 1996-05-23 | Trützschler GmbH & Co KG, 41199 Mönchengladbach | Vorrichtung in einer Spinnereivorbereitungseinrichtung (Putzerei) zum Erkennen und Ausscheiden von Fremdstoffen, z.B. Gewebestücke, Bänder, Schnüre, Folienstücke, in bzw. aus Fasergut |
| DE29719245U1 (de) * | 1997-10-29 | 1998-03-12 | Jossi Holding Ag, Islikon | Vorrichtung zum Erkennen und Ausscheiden von Fremdstoffen in Fasermaterial |
| US5936531A (en) * | 1998-03-06 | 1999-08-10 | Powers; Frank A. | Electrical fire sensing and prevention/extinguishing system |
-
1998
- 1998-07-08 DE DE19830394A patent/DE19830394A1/de not_active Withdrawn
-
1999
- 1999-04-14 DE DE59904205T patent/DE59904205D1/de not_active Revoked
- 1999-04-14 EP EP99107226A patent/EP0971058B1/de not_active Revoked
- 1999-07-07 JP JP11193151A patent/JP2000064134A/ja active Pending
- 1999-07-07 US US09/348,401 patent/US6317645B1/en not_active Expired - Fee Related
- 1999-07-08 CN CNB991103114A patent/CN1210450C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0971058A1 (de) | 2000-01-12 |
| JP2000064134A (ja) | 2000-02-29 |
| CN1240843A (zh) | 2000-01-12 |
| US6317645B1 (en) | 2001-11-13 |
| DE19830394A1 (de) | 2000-01-13 |
| CN1210450C (zh) | 2005-07-13 |
| DE59904205D1 (de) | 2003-03-13 |
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