EP1536046A2 - Procédé d'ourdissage - Google Patents

Procédé d'ourdissage Download PDF

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Publication number
EP1536046A2
EP1536046A2 EP04013584A EP04013584A EP1536046A2 EP 1536046 A2 EP1536046 A2 EP 1536046A2 EP 04013584 A EP04013584 A EP 04013584A EP 04013584 A EP04013584 A EP 04013584A EP 1536046 A2 EP1536046 A2 EP 1536046A2
Authority
EP
European Patent Office
Prior art keywords
section
thickness
increase
master
winding
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.)
Withdrawn
Application number
EP04013584A
Other languages
German (de)
English (en)
Other versions
EP1536046A3 (fr
Inventor
Martin Fuhr
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.)
Karl Mayer Textilmaschinenfabrik GmbH
Original Assignee
Karl Mayer Textilmaschinenfabrik GmbH
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 Karl Mayer Textilmaschinenfabrik GmbH filed Critical Karl Mayer Textilmaschinenfabrik GmbH
Publication of EP1536046A2 publication Critical patent/EP1536046A2/fr
Publication of EP1536046A3 publication Critical patent/EP1536046A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H3/00—Warping machines
    • D02H3/02—Sectional warpers
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H13/00—Details of machines of the preceding groups
    • D02H13/12—Variable-speed driving mechanisms

Definitions

  • the invention relates to a warping method for producing a chain with several tapes in succession wrapped the circumference of a rotating warping drum each of which is covered by a plurality of threads is formed, which simultaneously deducted from a gate become.
  • a chain used to make textile sheet materials is usually a big one Number of threads that lie parallel to each other. It is practically impossible with reasonable effort, a number of threads corresponding to this number of threads To keep coils in a gate. Divided therefore, the chain in a series of ribbons and wraps the tapes one after the other. One must accordingly only have as many coils in a gate as Threads are to be wound in a tape.
  • the individual bands should be one another as much as possible have appropriate structure. It is therefore common that form the first band as a master band, whose winding course is monitored and stored, and the following Then drive belts so that the winding course in These bands follow the course of the master band. Although this method has largely been used in practice enforced. Nevertheless, it can be observed that it sometimes significant thread tension differences of Band to band gives. This leads to an uneven Building a chain.
  • the invention is based on the object as possible to achieve uniform construction of a chain.
  • the radial section is selected as the master section innermost section of the first volume.
  • the master rhombus lies on the foot the cone of the warping drum when using a cone warping machine. If you're right at the beginning of the wrapping process set the master diamond, then you can all following rhombuses, so the following rhombuses of the first Bandes and all diamonds of the following bands, so wikkeln, that their winding course the winding course of the master rhombus essentially follows.
  • a press roll is used to increase the thickness of the dikk to control the sections. This has changed especially when winding the master diamond as advantageous proved.
  • the master rhombus is the radially farthest inside rhombus of the first volume is, then it is wound from thread sections, which in the Supply spools in the gate are outside and therefore in usually are provided with a lower voltage. In this case, there is a risk that the thickness increase at the master rhombus is relatively large, so that he no longer reproduced without problems from the following rhombuses can be. If you, however, a press roll used, then you can increase the thickness with the help limit the press roll, so that in the subsequent diamonds the corresponding increase in thickness achieved without problems can be.
  • the increase in thickness is too small a line load generated by the press roll.
  • a line load generated by the press roll At the episode rhombuses or episode sections that out Thread sections are wound out further inside lying areas of the supply spools, have the threads a greater tension and thus a little lower Volume.
  • This reduced volume causes that the thickness increase may be in the individual diamonds not as big as in the master rhombus.
  • This effect can be reduced by a reduction counteract the line load.
  • the line load of the press roll i.e. the force per length when winding the master diamond is greatest.
  • suitable Cases can also be the master rhombus with a Wind load, which is not the maximum Line load corresponds.
  • the final line load of the previous one Section Preferably used as a start-line load for a section the final line load of the previous one Section. It is assumed that the line load primarily of the state of the current gewikkelten Thread section depends. This condition changes but between the end of a rhombus, i. the End of a section, and the beginning of the next rhombus or the next section is not.
  • the control process So it is greatly simplified, if you have the Maintain line load when changing a section can.
  • a thread tension control is used, to control the increase in thickness of a section.
  • a thread tension control can be done centrally at the gate, from which the threads are deducted. If determines that the increase in thickness of a rhombus or a section is too big, then you can this growth rate decrease by adjusting the thread tension elevated. At an increased thread tension is reduces the volume of the threads. This results in a less increase in thickness.
  • the thread tension is lowered after an increase in the thread tension
  • the thread tension before you reduces the line load of the press roll. You drive So with a predetermined thread tension. If the Thickness increase is too large, then you increase the thread tension, until the thickness increase again the desired Value has, the thickness of the diamond per thread layer so by one certain value increases. If you realize then that you went too far in the regulation and the Thickness increase is too small, then first the thread tension lowered again until the increase in thickness again corresponds to the given course. This lowering takes place until the thread tension returns has assumed its original value. Only if this measure is not yet to the desired Success has led to the line load of the press roll reduced.
  • the radially outer portion can Although a reduced thickness compared to the other sections, especially the master section. His winding course, however, corresponds to this Dikke the winding course of the master section, i. of the Master diamond.
  • Fig. 1 shows a warping device 1 with a warping drum 2, which has a cone 3.
  • the warping drum 2 is driven by a drive, not shown, so she can turn while winding.
  • a gate 4 In a gate 4 is a plurality of coils 5. Of each spool 5, a thread 6 is withdrawn and fed via a Riet 7 of the warping drum 2. Between the coil 5 and the reed 7 is a central Voltage regulating device 8 for the threads 6.
  • a press roll 13 is provided which under the Effect of a pressure device 14 on the outermost Location of the last wound tape 12 rests.
  • the Pressing device 14 generates a force 15 on the tape 12.
  • This contact pressure 15 divided by the width of the Band 12 gives a line load.
  • This line load affects the increase in thickness of the tape 12, i. she is one of the criteria by which measure the Diameter of itself on the circumference of the warping drum. 2 forming coil 16 at each revolution of the warping drum 2 enlarged.
  • the diameter is indicated by an in Fig. 1 sensor 9 shown schematically continuously detected.
  • the first volume 10 as a master band to wrap and the winding process during winding to capture.
  • the following bands 11, 12 are then called Copy of the master tape 10 generated.
  • This master diamond 18 is over a predetermined order height 19 defined when they reach then the number of turns is stored.
  • the order level can be determined, for example, by that over yarn parameters and order data one theoretical band application height 20 determined. This one will then by a given number of diamonds per band divided. As a result, the diamond application height can be calculated. As the previous estimate of the theoretical Tape application height 20 does not always match reality can it happen that the last rhomb 21? has a reduced diamond application height.
  • the order height 19 of the master diamond 18 Upon reaching the order height 19 of the master diamond 18 is determined by the order height 19 and the number of turns defines a straight line, for example, in Fig. 3 can be seen.
  • An order height 19 corresponds then a number of turns n.
  • One number of turns nz should then correspond to a lower order height HNz.
  • the press roll 13 When winding the master diamond 18 is only the press roll 13 is used.
  • the press roll 13 is with used a line load, the maximum contact pressure equivalent. In some cases, however, it can be low, the contact pressure when winding the master diamond 18 to reduce a reserve, so that in a later stage of winding the possibility has to increase the line load.
  • the master diamond 18 When winding the master diamond 18 so waived the regulation of Thread tension. This is set at the beginning of the winding and then stays unchanged.
  • the line load of the press roll 13 is at the beginning of winding and then remains unchanged. However, the press roll 13 is only from a preset Order level switched on, as they do not open the empty warping drum 2 should run.
  • the press roll 13 prevents the increase in thickness at the master diamond 18 is too big. This can be in observe many cases and in particular, if you have new coils 5 when winding the master rhombus used. Namely, the master diamond 18 will turn off Wrapped sections of threads 6, which under a diminished Have been suspense and therefore under Circumstances are somewhat more voluminous than thread sections, which were wound inside the coils 5. From these inner thread sections could be found in copy diamonds 21-23 may no longer have the same thickness increase to reach.
  • Fig. 4 shows the turns n is a curve 24 representing the line load, a curve 25, which represents the thread tension, and a Curve 26, which shows the deviation between the in Fig. 3 shown straight line and the actual thickness increase a rhombus 21-23 represents.
  • the line load (curve 24) and the thread tension (Curve 25) are at the beginning of the winding process, such as mentioned above, kept constant. If at this Constellation exposes that the thickness increase to small fails (deviation 27), then you reduce first the line load (curve 24) for so long until no deviation between the in Fig. 3rd shown straight line and the increase in thickness of the individual Rhombus yields. This situation is at a point 28 occurred. However, now results in a faster Thickness increase of a sequence diamond 21-23, than this by the curve of Fig. 3 is predetermined (deviation 29). In In this case, the thread tension (curve 25) is increased, so that the increase in thickness decreases again and at a Point 30 again reaches the setpoint curve.
  • too little increase in thickness a lozenge reduces the pressing force of the press roll 13. If the increase in thickness is too large, the pressing force not increased, but the thread tension increased. But you can also provide the option, the Press roll 13 with an increased line load on the Wrap 16 to work.
  • Start Line Load for Copy Diamonds 21-23 is always the End-line load of the previous rhombus. This applies even with a band change, i. the final line load the press roll 13 on the last diamond 21 of the first Bandes 10 corresponds to the starting line load of the press roll 13 on the first rhombus 23 of the second band 11th
  • a software PID controller is used at the first copy diamond 22 by an autotuning method optimally adjusted.
  • the normally time-dependent components of the control behavior (I, D) should here to be a dependency on speed to avoid being related to the way traveled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Of Webs (AREA)
  • Warping, Beaming, Or Leasing (AREA)
EP04013584A 2003-11-28 2004-06-09 Procédé d'ourdissage Withdrawn EP1536046A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003155732 DE10355732B4 (de) 2003-11-28 2003-11-28 Schärverfahren
DE10355732 2003-11-28

Publications (2)

Publication Number Publication Date
EP1536046A2 true EP1536046A2 (fr) 2005-06-01
EP1536046A3 EP1536046A3 (fr) 2006-02-15

Family

ID=34442339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04013584A Withdrawn EP1536046A3 (fr) 2003-11-28 2004-06-09 Procédé d'ourdissage

Country Status (2)

Country Link
EP (1) EP1536046A3 (fr)
DE (1) DE10355732B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101906688A (zh) * 2010-07-05 2010-12-08 常州市第八纺织机械有限公司 立式弹力整经机的纱筒与罗拉之间压力的自动补偿方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018108944A1 (de) * 2018-04-16 2019-10-17 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung zum thermischen Behandeln einer textilen Warenbahn

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631573C3 (de) * 1976-07-14 1986-07-10 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal Verfahren und Vorrichtung zum Schären von Fäden
CH661061A5 (de) * 1983-10-06 1987-06-30 Benninger Ag Maschf Verfahren zum steuern des schaerschlittens einer schaermaschine und schaermaschine.
CH669409A5 (fr) * 1986-02-27 1989-03-15 Benninger Ag Maschf
CH675261A5 (fr) * 1987-05-14 1990-09-14 Benninger Ag Maschf
CH679935A5 (fr) * 1989-10-09 1992-05-15 Benninger Ag Maschf
DE19646087A1 (de) * 1996-11-08 1998-05-14 Sucker Mueller Hacoba Gmbh Verfahren und Vorrichtung zum Schären mit einer Konusschärmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101906688A (zh) * 2010-07-05 2010-12-08 常州市第八纺织机械有限公司 立式弹力整经机的纱筒与罗拉之间压力的自动补偿方法
CN101906688B (zh) * 2010-07-05 2011-09-07 常州市第八纺织机械有限公司 立式弹力整经机的纱筒与罗拉之间压力的自动补偿方法

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Publication number Publication date
DE10355732A1 (de) 2005-07-14
DE10355732B4 (de) 2007-11-29
EP1536046A3 (fr) 2006-02-15

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