EP0634507B2 - System zur Produktionssteigerung von Spinnereimaschinen - Google Patents

System zur Produktionssteigerung von Spinnereimaschinen Download PDF

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Publication number
EP0634507B2
EP0634507B2 EP94110331A EP94110331A EP0634507B2 EP 0634507 B2 EP0634507 B2 EP 0634507B2 EP 94110331 A EP94110331 A EP 94110331A EP 94110331 A EP94110331 A EP 94110331A EP 0634507 B2 EP0634507 B2 EP 0634507B2
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EP
European Patent Office
Prior art keywords
parameters
control
measurable
fuzzy
variables
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Expired - Lifetime
Application number
EP94110331A
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German (de)
English (en)
French (fr)
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EP0634507A1 (de
EP0634507B1 (de
Inventor
Christoph Kaufmann
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Zellweger Luwa AG
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Zellweger Luwa AG
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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 present invention relates to a system for Production increase of spinning machines, with sensors for Measurement of parameters that influence production, and with a controller that is connected to the sensors Control stage, one with the manipulated variables Control for the spinning machine and between control stage and control has a fuzzy controller for derivation of controlled variables from these parameters and for the formation of Control variables for the spinning machine from the obtained Control variables, taking those parameters that are unique mathematical relationship with the respective controlled variable exhibit through conventional algorithms in the regulation are involved and an input station is provided by the other in the scheme, especially not or only with difficulty measurable parameters can be entered, and those parameters that have no clear mathematical connection with the have the respective controlled variable by means of a fuzzy logic of the Fuzzy controllers are included in the control.
  • the invention is now intended to be a system for increasing the production of Specify spinning machines where it is still possible further, also subjectively felt by humans Influences on production, for the extraction of Record controlled variables.
  • FC Fuzzy controller
  • fuzzy logic is not a model of the process to be controlled and that the parameters are not just a single defined value, but several fuzzy ones Show quantities called fuzzy sets.
  • the system according to the invention thus has two major advantages: On the one hand, not all parameters have to be mathematical defined function of the control variables are present, and on the other hand All parameters do not necessarily have to be with one sensor be measurable. Both advantages lead to the system parameters perceived by the operating personnel are also entered can be, and that means again Pages 1, 2 and 2a add a significant expansion to the range of usable Parameter.
  • FIG. 1 shows a block diagram representation of a control system for a ring spinning machine RS, the control system preferably on the known data system USTER RINGDATA (USTER - registered trademark der Zellweger Uster AG) and from this also uses known components.
  • This known components are in particular a so-called Machine station MS to which the various Sensors connected for parameters to be recorded are a machine input station ES for data entry, like changing articles, or specifying dates, like Creep spindle report, and a motor control MA the ring spinning machine RS.
  • the sensors mentioned are, for example, a provided on each machine side and on the ring bench walking sensor, an underwind sensor and a production sensor.
  • the production sensor detects the revolutions of the discharge cylinder on Drafting system and provides basic information about production quantities and delivery speeds, frequency and duration of long downtimes and the like.
  • With the underwind sensor the underwind position the ring bench to record the number and duration of the Cops registered.
  • the hiking sensor is once per machine side and will be on the Ring bench led along. It detects contactlessly the rotation of the ring traveler and provides information about thread breaks at each spinning position and the mean time to correct them and the mean time Speed of the ring traveler and thus via the spinning positions at too low speed.
  • the machine station MS is on via a line 1 one with the USTER RINGDATA data system also as Central unit designated control stage ST connected, in which, among other things, the line 1 of the Machine station MS received information about processes the measurable parameters into control variables become.
  • the configuration of the control system described so far is from USTER News Bulletin No. 27 from August 1979 "The detection of thread breaks in der Ringspinnerei ".
  • the motor control MA receives on one line 2 a manipulated variable for adjusting the drive of the Ring spinning machine RS based on the in the control stage ST obtained standard sizes.
  • Essential to the in Fig. 1 shown control system is now the circumstance that the control stage ST is not just information about the measurable parameters, but also information about non-measurable parameters, and that too the latter parameters when obtaining the control variables be taken into account.
  • the control stage ST receives the information about the measurable parameters of those connected to the machine station Sensors and the information about non-measurable Parameters from that with the machine station MS over a line 3 connected input station ES.
  • the traditional control technology be it state controllers, P controller (controller with proportional component, with a setting parameter), PI controller (controller with Proportional and integral part, i.e. with two setting parameters), PID controller (controller with proportional, integral and differential component, i.e. with three setting parameters) or the like assumes that the relationships of the process to be regulated and are writable and depicted in a model can be.
  • This modeling also includes Disturbances such as temperature drift, where it is also known to include the disturbance variables in the scheme to integrate that they are not on the regulatory process have a negative impact. But here, too, a math Relationship between disturbance variable and controlled variable available. If this is not the case, then the Regulations, apart from coincidences, fail.
  • the ring spinning machine significantly determining speed of the spindles not only of the ones mentioned Sensors monitored and measured parameters dependent, but also on influencing factors such as climate, dust, airflow or subjective and individual parameters of the operating personnel, such as its workload.
  • influencing factors such as climate, dust, airflow or subjective and individual parameters of the operating personnel, such as its workload.
  • the first criterion is technical Select measurability of the influencing variables or parameters, then you can convert the parameters into technically measurable and divide it into technically non-measurable ones. Taking as a criterion the possibility of producing a mathematical Relationship between parameters and controlled variables, then you can change the parameters in those with and in those without a mathematical context divide with the relevant control variable.
  • the control system shown in Figure 1 should now enable all four classes of parameters mentioned in to include the regulation. This is done by a Synthesis of conventional adaptive control and Fuzzy logic reached.
  • fuzzy logic the meantime extensive literature on this subject for example on the book “Fuzzy Set Theory and its Applications "by H.-J. Zimmermann, Kluwer Academic Publishers, 1991.
  • fuzzy sets were Introduced 25 years ago to be inaccurate and incomplete Data records that often occur in the real world (Pictures, subjective descriptions) mathematically to describe.
  • the classic control logic only the two sharp values yes or no, Has 0 or 1
  • the fuzzy logic knows a membership function, to describe the affiliation of an object to a certain amount within in the range 0 to 1 can take any value.
  • control system is designed that defines further parameters that are not yet known be technically measurable or not technically measurable.
  • control system entered what relationship between parameter and controlled variable is expected.
  • Every class is for Example of a trapezoidal fuzzy set with the tendency to thunderstorms GN on the abscissa and with the weighting G on the ordinate. Typical of these sets is that they overlap of the individual states exist in which clear values of the tendency to thunder Several states can be assigned on the x-axis can.
  • a fuzzy controller FC arranged in the control system shown in Fig. 1 is between the control ST and the motor control MA a fuzzy controller FC arranged.
  • This consists of a rule base 4 and an interference machine 5 for the premises and from an action interface 6 for the Conclusions. Strictly speaking, the as User interface acting input station ES component of the fuzzy controller FC.
  • FIG. 1 shown control system in the definition of the input variables and their relationship to the controlled variable between clearly describable and not mathematical distinguishable relationships.
  • the relationships are clearly describable relationships and the climate.
  • the Systen limits for the speeds entered within of which the regulation may move (minimum below maximum upper speed).
  • the entered speed change i.e. lowering or increasing the speed, used per control step and per acquisition size.
  • Fig. 3 shows a graphical representation of the control the speed of a ring spinning machine based on the number of broken threads.
  • Speed D in revolutions per minute
  • FDB thread break rate
  • the permissible maximum upper speed Do the permissible minimum lower speed Du
  • the target thread break level FBs as well as symmetrical to them, each around 5% spaced limits for deviations from the Thread breakage rate shown.
  • the ring spinning machine runs at a time D 1 at a speed D 1 , the thread break rate being just above the desired thread break level FB s .
  • the thread break rate exceeds the limit FB s + 5%, whereupon the speed is reduced by the set amount.
  • the speed D is reduced again by the set amount at this time , and so on.
  • climate air temperature, air humidity
  • the control is carried out analogously to the thread breaks. If the target temperature is exceeded or fallen below or the target humidity becomes the speed step by step within the permissible speed interval changed.
  • the speed is regulated based on the entered Rules a to e, the calculation of the Initial variables preferably by means of center of gravity (CoA-Center of Area) or formation of the maximum value average (MoM - Mean of Maximum).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Feedback Control In General (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Incineration Of Waste (AREA)
EP94110331A 1993-07-14 1994-07-04 System zur Produktionssteigerung von Spinnereimaschinen Expired - Lifetime EP0634507B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH02108/93A CH687994A5 (de) 1993-07-14 1993-07-14 Vorrichtung zur Produktionssteigerung von Spinnereimaschinen.
CH2108/93 1993-07-14
CH210893 1993-07-14

Publications (3)

Publication Number Publication Date
EP0634507A1 EP0634507A1 (de) 1995-01-18
EP0634507B1 EP0634507B1 (de) 1997-10-15
EP0634507B2 true EP0634507B2 (de) 2001-10-04

Family

ID=4226063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110331A Expired - Lifetime EP0634507B2 (de) 1993-07-14 1994-07-04 System zur Produktionssteigerung von Spinnereimaschinen

Country Status (11)

Country Link
US (1) US5511371A (enExample)
EP (1) EP0634507B2 (enExample)
JP (1) JP3536263B2 (enExample)
CN (1) CN1048048C (enExample)
AT (1) ATE159304T1 (enExample)
BR (1) BR9402697A (enExample)
CH (1) CH687994A5 (enExample)
DE (1) DE59404316D1 (enExample)
ES (1) ES2108340T3 (enExample)
MY (1) MY130104A (enExample)
TW (1) TW277080B (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537694A1 (de) * 1995-10-10 1997-04-17 Schenck Ag Carl Verfahren zur Überwachung einer Maschine oder Anlage
CH691687A5 (de) * 1995-12-20 2001-09-14 Schlafhorst & Co W Verfahren zum Ueberprüfen des Fadenprofils beim Anspinnen in einer Offenend-Spinnmaschine.
US6047275A (en) * 1997-10-14 2000-04-04 Allen-Bradley Company, Llc Fuzzy logic winder analyzer
US20070044627A1 (en) * 2005-08-26 2007-03-01 Clem Todd L Speed and stroke control method and apparatus for a product table of a food slicer
US20070044621A1 (en) * 2005-08-26 2007-03-01 Rote Scott J Top mounted operator interface for a food slicer
EP3260584B1 (de) * 2016-06-15 2021-10-27 Rieter Ingolstadt GmbH Verfahren zum optimieren der produktion einer rotorspinnmaschine
US11459676B2 (en) * 2018-05-28 2022-10-04 Uster Technologies Ag Automatic ring spinning system and method for automatically operating same
JP7052683B2 (ja) * 2018-11-13 2022-04-12 株式会社豊田自動織機 紡機のスピンドル制御方法およびスピンドル制御装置
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4974296A (en) † 1990-02-23 1990-12-04 Platt Saco Lowell Corporation, Inc. Apparatus for correcting irregularities in a textile strand

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE153709C (enExample) *
CH683536A5 (de) * 1990-06-15 1994-03-31 Rieter Ag Maschf Ringspinn- oder Zwirnmaschine.
JP3075811B2 (ja) * 1991-11-12 2000-08-14 津田駒工業株式会社 ジェットルームの緯入れ制御装置
EP0548023A1 (de) * 1991-12-17 1993-06-23 Maschinenfabrik Rieter Ag Durchfluszsteuerung einer Putzereilinie
DE4202352A1 (de) 1992-01-29 1993-08-05 Rieter Ingolstadt Spinnerei Verfahren und vorrichtung zur regulierung eines streckwerkes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4974296A (en) † 1990-02-23 1990-12-04 Platt Saco Lowell Corporation, Inc. Apparatus for correcting irregularities in a textile strand

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Kontruktion & Elektronik, Vom Labor in die Praxis, 23. und 24. September 1992, Augsburg, Erfolgsbilanz für Fuzzy Logic, Referat Prof. Dr. Steffen F. Bocklisch †
Melliand Textilberichte 6/1995, Seite 400-403 †

Also Published As

Publication number Publication date
CN1048048C (zh) 2000-01-05
US5511371A (en) 1996-04-30
BR9402697A (pt) 1995-04-04
EP0634507A1 (de) 1995-01-18
EP0634507B1 (de) 1997-10-15
ATE159304T1 (de) 1997-11-15
JP3536263B2 (ja) 2004-06-07
CH687994A5 (de) 1997-04-15
DE59404316D1 (de) 1997-11-20
CN1117534A (zh) 1996-02-28
ES2108340T3 (es) 1997-12-16
JPH0748739A (ja) 1995-02-21
TW277080B (enExample) 1996-06-01
MY130104A (en) 2007-06-29

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