EP2789717B1 - Method for spinning-in on a spinning machine, particularly on an air-jet spinning machine or an open-end spinning machine - Google Patents

Method for spinning-in on a spinning machine, particularly on an air-jet spinning machine or an open-end spinning machine Download PDF

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Publication number
EP2789717B1
EP2789717B1 EP14161096.4A EP14161096A EP2789717B1 EP 2789717 B1 EP2789717 B1 EP 2789717B1 EP 14161096 A EP14161096 A EP 14161096A EP 2789717 B1 EP2789717 B1 EP 2789717B1
Authority
EP
European Patent Office
Prior art keywords
spinning
units
power supply
load
spinning units
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
EP14161096.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2789717A1 (en
Inventor
Jiri Ing. Stancl
Vladimir Ing. Skrivanek
Ladislav Ing. Hajek
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 CZ sro
Original Assignee
Rieter CZ sro
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Publication date
Application filed by Rieter CZ sro filed Critical Rieter CZ sro
Publication of EP2789717A1 publication Critical patent/EP2789717A1/en
Application granted granted Critical
Publication of EP2789717B1 publication Critical patent/EP2789717B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/32—Driving or stopping arrangements for complete machines
    • 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
    • D01H4/42—Control of driving or stopping

Definitions

  • the invention relates to a method for spinning-in on a spinning machine, particularly on an air-jet spinning machine or an open-end spinning machine, containing a plurality of spinning units arranged next to each other and provided with individual drives.
  • the aim of the invention is therefore to eliminate the disadvantages of the background art and to propose a method for spinning-in on a spinning machine, especially on an air-jet spinning machine or an open-end spinning machine, which would reduce the peak load of its power supplies and thus enable to use power supplies with lower output.
  • the goal of the invention is achieved by a method for spinning-in on a spinning machine during start-up of the spinning machine, particularly on an air-jet spinning machine or an open-end spinning machine, containing a plurality of spinning units arranged next to each other and provided with individual drives, which are divided into groups, wherein the spinning units of each group are supplied by a common power supply, whereby spinning-in of each of the spinning units is carried out either by at least one service device capable of moving along the row of spinning units and spinning-in of each of them, or by manual service.
  • the principle of this method consists in the fact that during a process of sequential spinning-in the actual load of the power supplies for individual groups of spinning units is monitored and after achieving or exceeding a predetermined value, the spinning-in process of spinning units of a given individual group is interrupted, whereupon the spinning-in of spinning units of another group is started, in which the actual load of the power supply is lower than the predetermined value.
  • the peak performance of the whole spinning machine is reduced and is distributed into a longer time interval, which enables to design power supplies to lower nominal output, and so, having lower capacity, the power supplies can be physically smaller and therefore usually also more cheaper.
  • the predetermined value of the power supply load equals the sum of all the power requirements of all the spinning units of particular group during steady-state of spinning, or it is lower, or, by way of contrast, higher, namely up to a value of short-time overload capacity of the particular power supply.
  • Fig. 1 schematically represents an example of embodiment of an open-end spinning machine on which the method for spinning-in according to the invention is applied.
  • FIG. 1 The method of spinning-in on a spinning machine according to the invention will be explained using simplified embodiment of an open-end spinning machine schematically shown in Fig. 1 .
  • This spinning machine contains a row of 12 identical spinning units 11 to 34, each of which is provided with an not shown individual drive. These units 11 to 34 are divided into three groups 1 , 2 , 3 of four, whereby all the units 11 to 34 of each group 1 , 2 , 3 are supplied by common power supply 10 , 20 , 30 .
  • Each power supply 10 , 20 , 30 is provided with monitoring device 100 , 200 , 300 , which monitors its load and/or temperature and/or output and/or supplied electrical current, or, as the case may be, another value which corresponds to its actual load.
  • the monitoring devices 100 , 200 , 300 of all the power supplies 10 , 20 , 30 and all the spinning units 11 to 34 are connected to the control unit 4 of the spinning machine.
  • the open-end spinning machine is further provided with at least one automatic service device 5 for servicing the spinning units 11 to 34 , which is movably mounted along the row of these spinning units 11 to 34 and which can arrive to any of them.
  • the automatic service device 5 is responsible for activities leading to the spinning-in of the spinning units 11 to 34 during the start-up of the spinning machine or upon a yarn rupture in one of them, etc. However, apart from that, it performs also other functions periodically or irregularly - in case of need.
  • control unit 4 of the spinning machine at any time point has information about the actual position of the service device 5, the state of spinning-in of each spinning unit 11 to 34 and the load of individual power supplies 10 , 20 , 30 . On the basis of this information it then controls the movement and function of the service device 5 during the start-up, as well as during steady-state operation of the spinning machine.
  • the service device 5 moves along the row of the spinning units 11 to 34 and sequentially carries out predetermined number of attempts to spin-in (usually 1 to 3) by each of them.
  • predetermined number of attempts to spin-in usually 1 to 3
  • such a predetermined value is the sum of the outputs of all the spinning units 11 to 34 connected to this power supply 10 to 30 in steady-state spinning, although it can also be a value which is lower or, by way of contrast, higher, namely up to the value of short-time overload capacity of the particular power supply 10 to 30 .
  • the output that is determined by the maximum current of relevant components of the power supply 10 to 30 , and as to the time, it is determined by the increase in the temperature of the power supply 10 to 30 or its components, whereby the value permitted (by the producer) must not be exceeded.
  • the service device 5 regardless the actual state of spinning-in and the attempts to spin-in performed, moves to the nearest spinning unit 21 of the nearest group 2 , in which the actual load of the power supply 20 is lower than the predetermined value - i.e. no attempt to spin-in has been carried out yet in it, or the actual load of the power supply 20 has dropped below the predetermined value as a result of achieving steady-state spinning in the spun-in spinning units 21 to 24 or as a result of interrupting the spinning in any of them.
  • the service device 5 proceeds in the same manner as in the first group 1 and sequentially spins-in its spinning units 21 to 24 not yet spun-in, or carries out the predetermined number of attempts to spin-in by its spinning units 21 to 24 not yet spun in.
  • the service device 5 After achieving or exceeding the predetermined value of load of the power supply 10 , 20 , 30 in all groups 1 , 2 , 3 of the spinning units 11 to 34 for the first time, the service device 5 then returns to yet un-serviced spinning units 11 to 34 or spinning units 11 to 34 not yet spun-in, which are supplied by the power supply 10 , 20 , 30 , in which the load has decreased below the predetermined value, e.g.
  • the advantages of this method consist especially in the fact that the peak power requirement of the whole spinning machine is during spinning-in reduced and distributed into longer time interval.
  • This enables to design power supplies 10 , 20 , 30 for lower nominal output, which corresponds to the total power requirement of supplied spinning units 11 to 34 in steady-state spinning, and, as a result, these supplies 10 , 20 , 30 can have a lower capacity and can be even physically smaller, and therefore usually also cheaper.
  • Another advantage is energy saving, which also plays a significant role.
  • the supplies designed in this manner 10 , 20 , 30 are optimally exploited during the whole operation of the spinning machine, or their performance equals or is nearing their nominal output, and so they work with greater efficiency.
  • the method of spinning-in according to the invention can be applied to every spinning machine, which contains at least one row of spinning units 11 to 34 with individual drives.
  • this procedure can also be applied to spinning machines which contain a plurality of rows of spinning units 11 to 34 and/or a plurality of attending devices 5 , as well as to spinning machines, in which the process of spinning-in is carried out manually, whereby the current load of the power supplies 10 , 20 , 30 , or possibility/impossibility of performing an attempt to spin-in of each spinning unit 11 to 34 and/or a group of spinning units 11 to 34 is signalled to the machine operator, for example by giving a visual and/or acoustic signal, or otherwise.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP14161096.4A 2013-04-09 2014-03-21 Method for spinning-in on a spinning machine, particularly on an air-jet spinning machine or an open-end spinning machine Active EP2789717B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2013-275A CZ2013275A3 (cs) 2013-04-09 2013-04-09 Způsob zahájení předení na spřádacím stroji, zejména vzduchovém dopřádacím stroji nebo rotorovém dopřádacím stroji

Publications (2)

Publication Number Publication Date
EP2789717A1 EP2789717A1 (en) 2014-10-15
EP2789717B1 true EP2789717B1 (en) 2018-04-18

Family

ID=50342236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14161096.4A Active EP2789717B1 (en) 2013-04-09 2014-03-21 Method for spinning-in on a spinning machine, particularly on an air-jet spinning machine or an open-end spinning machine

Country Status (4)

Country Link
EP (1) EP2789717B1 (cs)
CN (1) CN104233529B (cs)
CZ (1) CZ2013275A3 (cs)
TR (1) TR201808631T4 (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019122609A1 (de) * 2019-08-22 2021-02-25 Maschinenfabrik Rieter Ag Verfahren zum Bestimmen einer elektrischen Leistung oder eines elektrischen Energieverbrauchs einer Spinn- oder Spulmaschine und Spinn- oder Spulmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH599364A5 (cs) * 1975-07-16 1978-05-31 Rieter Ag Maschf
CS251339B1 (en) * 1984-09-26 1987-06-11 Frantisek Burysek Spinning-in process control device in spinning units
EP1375709B1 (de) * 2002-06-21 2014-08-06 Maschinenfabrik Rieter Ag Ansetzverfahren oder Anspinnen für Spinnstellen von Luftspinnmaschinen
JP3791511B2 (ja) * 2003-05-21 2006-06-28 村田機械株式会社 紡績機における駆動制御システム
DE10346194B4 (de) * 2003-09-29 2014-07-24 Wilhelm Stahlecker Gmbh Verfahren und Vorrichtung zum Wiederherstellen eines unterbrochenen Spinnvorgangs
DE102004049250A1 (de) * 2004-09-30 2006-04-06 Wilhelm Stahlecker Gmbh Verfahren und Vorrichtung zur Synchronumschaltung eines Motors zwischen zwei Frequenzumrichtern
DE102004053505A1 (de) * 2004-11-02 2006-05-04 Wilhelm Stahlecker Gmbh Verfahren zum Optimieren der Produktionsleistung einer Spinnmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN104233529B (zh) 2017-12-22
CZ2013275A3 (cs) 2014-10-22
CN104233529A (zh) 2014-12-24
TR201808631T4 (tr) 2018-07-23
EP2789717A1 (en) 2014-10-15

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