EP0153350A1 - Verfahren und vorrichtung zur überwachung der arbeitsstellen einer textilmaschine. - Google Patents
Verfahren und vorrichtung zur überwachung der arbeitsstellen einer textilmaschine.Info
- Publication number
- EP0153350A1 EP0153350A1 EP84903046A EP84903046A EP0153350A1 EP 0153350 A1 EP0153350 A1 EP 0153350A1 EP 84903046 A EP84903046 A EP 84903046A EP 84903046 A EP84903046 A EP 84903046A EP 0153350 A1 EP0153350 A1 EP 0153350A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal processing
- processes
- yarn
- processor
- monitoring points
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000012544 monitoring process Methods 0.000 title claims abstract description 51
- 239000004753 textile Substances 0.000 title claims description 11
- 238000009434 installation Methods 0.000 title 1
- 238000012545 processing Methods 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 9
- 230000007547 defect Effects 0.000 claims description 5
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000009987 spinning Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007383 open-end spinning Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
Definitions
- the invention relates to a method for the simultaneous monitoring of the yarn quality at a plurality of similar monitoring points of a textile machine, in which a measuring element and processors assigned to the measuring elements are used for processing the signals delivered by the measuring elements for each monitoring point, whereby the different signal processing processes for the individual monitoring stations are carried out at different repetition rates.
- Methods of this type are used, inter alia, on yarn cleaning and yarn quality monitoring systems for alternative spinning processes such as rotor spinning and the like.
- alternative spinning processes such as rotor spinning and the like.
- yarn defects such as short thick spots, coarse threads and thin spots, periodic and aperiodic error chains, number deviations and deviations in yarn uniformity can occur. Since the yarn speed in alternative spinning processes is only about 10% of that in rewinding, the error rates per unit length are about one order of magnitude smaller and less about two orders of magnitude less per time unit.
- the invention is intended to enable inexpensive monitoring of all types of errors.
- this object is achieved by assigning a common processor to several measuring devices, and by combining signal processing processes with the same repetition rates into classes and nesting classes into one another in such a way that the corresponding ones are related to the individual monitoring points Repeat signal processing processes at least approximately periodically. It is obvious that the replacement of one evaluation unit per measuring element by a processor assigned to several measuring elements represents a cost-effective solution which creates the conditions for monitoring all types of errors. In addition, the combination of signal processing processes with the same repetition rate into classes and their specified nesting enables a uniform utilization of the capacity of the processor, or in other words, this capacity does not need to be aligned to the load peaks, but to a value which is significantly below them.
- the individual classes of signal processing processes are interleaved in such a way that processes with the highest repetition rate run cyclically for all and those with a slow repetition rate only for a maximum of a few monitoring points.
- the invention further relates to a device for performing the above-mentioned method, each with a measuring element for the individual monitoring points and with processors for processing the signals supplied by the measuring elements.
- each processor is assigned to a plurality of measuring devices and that the processors are assigned a common central device and connected to them via a communication channel, and that each processor has a multiplexer controlled by a timer for cyclical use Sampling of the output signals of the measuring elements assigned to this processor.
- Fig.la, lb, lc a schematic section of a chronological sequence of the most important signal processing processes
- Fig.2 the block diagram of a possible embodiment of a device according to the invention.
- FIGS. 1 to 1 c which are to be thought of as lined up on their narrow sides, shows the most important signal processing processes running in a processor. It is assumed that this processor is assigned to a group of 24 monitoring points and thus measuring heads.
- zone 100 The processes shown in zone 100 are according to legend 30 in Fig.la
- OMPI divided into three classes characterized by different hatching: in processes 31 of class I, in processes 32 of class II and in processes 33 of class III.
- the synchronization symbol 402 triggers the time-critical processes 31 (class I), the synchronization symbol 502 the time-critical processes 32 (class II) and the synchronization symbol 602 the time-critical processes 33 (class III).
- These synchronization characters 402, 502 and 602 occur periodically, with a periodicity T corresponding to a yarn length of 5 mm.
- the processes in class I relate, among other things, to the analysis of short yarn errors which require a scanning rate of 5 mm yarn run, for example, short thick spots and periodic and aperiodic error chains.
- the processes 32 of class II which are designated 701, 702 and 703, run with respect to the individual monitoring points at a repetition rate that is only that of the processes 31. These processes include analyzes for coarse threads and long thin spots. In relation to the thread run, they therefore run at a repetition rate of 4 cm. This reduced repetition rate is achieved (while maintaining the periodicity per monitoring point) by alternating the monitoring points 1 to 3, 4 to 6, 7 to 9,, 22 to 24.
- the processes 33 of class III run with a repetition rate that has been reduced even further, that is to say every 32 cm in relation to the yarn run.
- the following can be considered here: analyzes of number deviations as well as the sending and receiving of data packets in communication with the central control unit and possibly other groups.
- the sending and receiving of data packets with processes 33 of class III is to be understood such that a packet is exchanged (sent or received) each time in the rhythm of the repetition rate of class I.
- each can be a permanently formatted package from a structured stock of 64 such packages, which are exchanged cyclically one after the other.
- a packet that contains similar information is accordingly only transmitted every 64 times, ie every 32 cm cooking cycle. This principle can be varied within wide limits and adapted to current needs without departing from the inventive idea.
- the reduction of the data rate to - $ and the associated decimation is an auxiliary function that has to be carried out separately for the yarn signal of each monitoring point.
- a corresponding decimation algorithm must therefore be run before or after the respective algorithm for class I signal analysis in preparation for the class II signal analysis.
- the procedure is analogous for data reduction and preparation of class III signal analysis.
- the management of address pointers, of storage locations for the intermediate storage of intermediate results and the waiting for synchronization signals and their acceptance are mentioned as auxiliary and additional functions which cannot be assigned to the individual monitoring points.
- the auxiliary function 102 prepares the waiting character interval 302 for the synchronization character 402, which then triggers the processes 31 of class I for the 24 monitoring points.
- the next following synchronization symbol 402 for the processes 31 is then received after the period T corresponding to a yarn length of 5 mm, whereupon the processes 31 are triggered for all 24 monitoring points.
- the auxiliary function 103 prepares the waiting character interval 303 for the synchronization character 502, which triggers the processes 32 of class II, designated 701, for the monitoring points 1 to 3.
- the synchronization symbol 502 following after the period T then triggers the processes 32 designated 702 for the monitoring points 4 to 6, and so on.
- FIG. 2 shows a central processing unit 51 and a processor 53 connected to it via a communication channel 80, generally several processors 53 being connected to the communication channel 80 and each of these processors 53 serving a number of similar monitoring points.
- the processor 53 is fed by 24 (analog) yarn signals 55, which are supplied by sensors attached to the textile machine (Measuring heads) known technology.
- the processor 53 has on the machine side 24 outputs 56 for shutdowns and ⁇ times 24 outputs 57 for alarm signals.
- An output 56 for shutdown and n outputs 57 for alarm signals are therefore provided for each monitoring point.
- the outputs 56 serve to interrupt the fiber feed or to trigger a cleaner cut
- the outputs 57 serve to display the type of yarn defects discovered at the corresponding monitoring point, the state of the monitoring point and similar parameters and information.
- the processor 53 is constructed using known microprocessor technology and contains at its heart a microprocessor 58 which is connected to an address, data and control line bus (A, D, S) and receives its clock from an external timer 59.
- a decoder 60 is used to decode addresses of individual modules.
- the yarn signals are passed via an analog multiplexer 61 controlled by the timer 59 to an A / D converter 62, from where they are called up by the microprocessor 58.
- the shutdown and alarm signals 56, 57 are emitted to the outside world via a driver 63.
- a special communication processor 64 handles the packet-by-packet data traffic between communication channel 80 and microprocessor 58.
- Communication with the central unit 51 takes place serially on a separate line for transmission and reception, communication with the microprocessor 58 takes place in parallel via transmission and reception registers. which are loaded or read by the microprocessor 58. Transmission and reception are controlled by the timer 59.
- the functions carried out by the processor 53 are those which arise during the stationary running operation of the textile machine. If this textile machine is, for example, a rotor spinning machine with typically 200 or more spinning positions, then it processes the same yarn quality on all spinning positions, ie the values of the setting parameters for all spinning positions are the same.
- the rotor spinning machine is operated by a single moving piecing machine, so that piecing or splicing, that is to say a function during the start-up or in the beginning of the stationary running operation of the spinning machine, only takes place at a single spinning station. For this reason, the measuring head of the respective spinning station is connected to the central unit 51 in the start-up state and, after the stationary running mode has been reached, is switched off and switched back to the corresponding processor 53.
- the intrusion of Ueberwachungsstelle a machine position on the Gott ⁇ is located in the start-up state unit 51 via ei 'ne by the microprocessor 58 controlled relay bank 65; the yarn signal 66 is sent to the central unit 51 as an analog signal.
- the • • functions of error analysis and error handling in stationary operation can be divided into two categories: In processes of a first category that run synchronously with the yarn run, this is the analysis for suspected errors (processes of the three classes in zone 100 of Fig .l), and in processes of a second category that do not necessarily run synchronously with the thread run, these are the decisions about interventions to be initiated and alarms to be triggered.
- the processes in the first category are carried out by the processor 53, those in the second category by the central unit 51, which sends appropriate signals for an alarm 67 and commands for interventions 68 to the central control of the textile machine. - 10 -
- the central unit 51 is constructed using known microprocessor technology, so that a special explanation is unnecessary here. Connections to input stations, data systems, etc., which are known from the prior art and are readily possible, are not shown since they do not form the subject of the invention.
- the communication channel 80 is designed as a bus system according to FIG.
- the messages to be exchanged between processor 53 and central unit 51 (FIG. 1, line 201) are transmitted digitally in serial fashion on two directional lines 82, 83.
- a special clock line 81 is used for synchronization.
- the analog yarn signal 66 of a machine position in the start-up stage is transmitted to the central unit 51 as an analog voltage via a common line 84.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Treatment Of Fiber Materials (AREA)
- General Factory Administration (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84903046T ATE30748T1 (de) | 1983-08-19 | 1984-08-20 | Verfahren und vorrichtung zur ueberwachung der arbeitsstellen einer textilmaschine. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH4526/83A CH661913A5 (de) | 1983-08-19 | 1983-08-19 | Verfahren und vorrichtung zur gleichzeitigen ueberwachung der garnqualitaet an einer vielzahl gleichartiger ueberwachungsstellen einer textilmaschine. |
CH4526/83 | 1983-08-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0153350A1 true EP0153350A1 (de) | 1985-09-04 |
EP0153350B1 EP0153350B1 (de) | 1987-11-11 |
Family
ID=4277734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84903046A Expired EP0153350B1 (de) | 1983-08-19 | 1984-08-20 | Verfahren und vorrichtung zur überwachung der arbeitsstellen einer textilmaschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US4774673A (de) |
EP (1) | EP0153350B1 (de) |
JP (1) | JPH0651937B2 (de) |
CH (1) | CH661913A5 (de) |
DE (1) | DE3467378D1 (de) |
IN (1) | IN162286B (de) |
WO (1) | WO1985001073A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5799476A (en) * | 1993-10-18 | 1998-09-01 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Spinning station error signalling and qualifying device |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD260297A1 (de) * | 1987-05-06 | 1988-09-21 | Textima Veb K | Datenleitung fuer spinn- und zwirnmaschinen |
US5119308A (en) * | 1988-08-26 | 1992-06-02 | Murata Kikai Kabushiki Kaisha | Control system for spinning machine |
CH681077A5 (de) * | 1988-10-25 | 1993-01-15 | Zellweger Uster Ag | |
DE3910181A1 (de) * | 1989-03-29 | 1990-10-04 | Rieter Ag Maschf | Steuersystem fuer eine textilmaschine |
US5018390A (en) * | 1989-07-06 | 1991-05-28 | Barmag Ag | Method and apparatus for monitoring the tension and quality of an advancing yarn |
DE3940923A1 (de) * | 1989-12-12 | 1991-06-13 | Zinser Textilmaschinen Gmbh | Spinnereimaschine mit bei auftreten von fehlern fehlersignale abgebenden signalgebern |
CH680803A5 (de) * | 1990-01-26 | 1992-11-13 | Zellweger Uster Ag | |
EP0481033A1 (de) * | 1990-04-24 | 1992-04-22 | Maschinenfabrik Rieter Ag | Verfahren zum beheben von störungen, insbesondere an spinnmaschinen |
DE4012930A1 (de) * | 1990-04-24 | 1991-10-31 | Rieter Ag Maschf | Verfahren zum beheben von stoerungen, insbesondere an spinnmaschinen |
JPH047269A (ja) * | 1990-04-24 | 1992-01-10 | Murata Mach Ltd | 紡績工場における品質管理システム |
DE4030100C2 (de) * | 1990-09-22 | 2000-03-23 | Schlafhorst & Co W | Verfahren und Einrichtung zum Bestimmen der Änderungen von Kriterien eines automatischen Anspinnvorgangs |
JP2611611B2 (ja) * | 1992-10-16 | 1997-05-21 | 村田機械株式会社 | 糸ムラ情報解析装置 |
KR0163217B1 (ko) * | 1993-04-29 | 1999-03-30 | 클라우스 퓌팅;디이터 핑슈텐 | 전진사의 감시방법 |
CH691687A5 (de) * | 1995-12-20 | 2001-09-14 | Schlafhorst & Co W | Verfahren zum Ueberprüfen des Fadenprofils beim Anspinnen in einer Offenend-Spinnmaschine. |
JP3520159B2 (ja) * | 1996-07-02 | 2004-04-19 | 計測器工業株式会社 | 糸むら検出方法 |
JP4756411B2 (ja) | 1998-03-25 | 2011-08-24 | ウステル・テヒノロジーズ・アクチエンゲゼルシヤフト | 長手方向に運動するテスト品の特性を測定する装置 |
DE10212712B4 (de) * | 2002-03-21 | 2017-03-16 | Rieter Ingolstadt Gmbh | Textilmaschine mit einer Vielzahl von Bearbeitungsstellen und einem Maschinenbus zur Kommunikation |
CN105401278B (zh) * | 2015-12-14 | 2017-12-05 | 江南大学 | 一种低功耗的纱线在线监测装置及节能控制方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA942870A (en) * | 1970-08-29 | 1974-02-26 | Tsutomu Tamura | Apparatus for detecting yarn quality information |
US3729635A (en) * | 1970-10-14 | 1973-04-24 | Lindly & Co | Yarn inspector |
US4030082A (en) * | 1972-03-24 | 1977-06-14 | Asahi Kasei Kogyo Kabushiki Kaisha | Apparatus for the treatment of yarn thickness variation signals |
JPS51116255A (en) * | 1975-04-07 | 1976-10-13 | Asahi Chemical Ind | Tester for yarn quality |
CH612152A5 (de) * | 1976-01-26 | 1979-07-13 | Rieter Ag Maschf | |
CH598374A5 (de) * | 1976-03-22 | 1978-04-28 | Zellweger Uster Ag | |
US4294065A (en) * | 1978-04-26 | 1981-10-13 | Parks-Cramer Company | Method and apparatus for facilitating maintenance of spinning machine information system |
US4194349A (en) * | 1978-04-26 | 1980-03-25 | Parks-Cramer Company | Apparatus and method for gathering and displaying information |
CS210059B1 (en) * | 1978-12-29 | 1982-01-29 | Karel Mikulecky | Device for the control,adjustment and regulation of the working place e.g.textile production unit or machine with the said units |
CH641422A5 (de) * | 1979-03-16 | 1984-02-29 | Zellweger Uster Ag | Verfahren zur bewertung von garnfehlern. |
DE3005746C2 (de) * | 1980-02-15 | 1983-10-06 | Ernest Scragg & Sons Ltd., Macclesfield, Cheshire | Einrichtung zur laufenden Überwachung einer Vielzahl von Fäden in einer Textilmaschine |
GB8407466D0 (en) * | 1984-03-22 | 1984-05-02 | Rieter Ag Maschf | Yarn quality monitoring system |
-
1983
- 1983-08-19 CH CH4526/83A patent/CH661913A5/de not_active IP Right Cessation
-
1984
- 1984-08-20 JP JP59503070A patent/JPH0651937B2/ja not_active Expired - Lifetime
- 1984-08-20 DE DE8484903046T patent/DE3467378D1/de not_active Expired
- 1984-08-20 WO PCT/CH1984/000130 patent/WO1985001073A1/de active IP Right Grant
- 1984-08-20 EP EP84903046A patent/EP0153350B1/de not_active Expired
- 1984-08-20 US US06/732,825 patent/US4774673A/en not_active Expired - Lifetime
- 1984-09-28 IN IN741/MAS/84A patent/IN162286B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8501073A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5799476A (en) * | 1993-10-18 | 1998-09-01 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Spinning station error signalling and qualifying device |
Also Published As
Publication number | Publication date |
---|---|
JPS60502058A (ja) | 1985-11-28 |
US4774673A (en) | 1988-09-27 |
DE3467378D1 (en) | 1987-12-17 |
CH661913A5 (de) | 1987-08-31 |
EP0153350B1 (de) | 1987-11-11 |
JPH0651937B2 (ja) | 1994-07-06 |
WO1985001073A1 (en) | 1985-03-14 |
IN162286B (de) | 1988-04-23 |
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