EP2465800B1 - Individual cleaning system for winding units - Google Patents

Individual cleaning system for winding units Download PDF

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Publication number
EP2465800B1
EP2465800B1 EP20110194240 EP11194240A EP2465800B1 EP 2465800 B1 EP2465800 B1 EP 2465800B1 EP 20110194240 EP20110194240 EP 20110194240 EP 11194240 A EP11194240 A EP 11194240A EP 2465800 B1 EP2465800 B1 EP 2465800B1
Authority
EP
European Patent Office
Prior art keywords
thread
nozzles
aspirator
blowing
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.)
Active
Application number
EP20110194240
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2465800A1 (en
Inventor
Roberto Badiali
Mauro Ceolin
Simone Sacilotto
Mauro Querenghi
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.)
Savio Macchine Tessili SpA
Original Assignee
Savio Macchine Tessili SpA
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Publication date
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Publication of EP2465800A1 publication Critical patent/EP2465800A1/en
Application granted granted Critical
Publication of EP2465800B1 publication Critical patent/EP2465800B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/702—Arrangements for confining or removing dust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention refers to an individual device for cleaning winding units that make up an automatic spooler.
  • spoolers consist of a plurality of winding units aligned along the front of the machine and equipped with common control and service apparatuses.
  • FIG. 1 The diagram of a winding unit is illustrated in its essential components in figure 1 that shows the path of the thread 2 from the lower spool 1 to the upper collecting reel 11, as follows:
  • the mouth 8 sucking on the side of the spool is capable of making the angular movement ⁇ that takes the suction nozzle of the mouth itself firstly to catch the end of the thread 2 from the unwinding group 3, to raise according to the rotation ⁇ , taking the end to the thread joiner 6.
  • the mouth 9 sucking on the side of the reel is capable of making the angular movement ⁇ that takes the suction nozzle of the mouth itself firstly to catch the end of the thread 2 from the reel 11, to lower with the rotation ⁇ , until said end of the reel side is taken to the thread joiner 6.
  • the mouths 8 and 9 are connected to a high vacuum generating device that, during the interventions for restoring the continuity of the thread 2 between spool 1 and reel 11, provides the necessary suction for catching and managing the ends on the side of the spool and on the side of the reel.
  • the winding processing substantially consists of unwinding the feed yarn and of cleaning it of its defective parts in terms of mechanical consistency or of size.
  • the yarn 2 is checked by the slubcatcher 10 that detects its size defects, both in terms of transversal size and in length.
  • the slubcatcher 10 orders the cutting of the thread whenever the detected size of the thread 2 is not within the range of acceptable sizes of the thread according to its calibration.
  • the thread cutting member can be incorporated in the same slubcatcher 10 or, as in figure 1 , it can be separate as a knife 7, shown arranged between the sensor 4 of the thread and the thread tightener 5.
  • control unit 16 After breaking, or cutting the thread 2 ordered by the slubcatcher 10, the slubcatcher itself signals the absence of the thread to the control unit 16 of the spooling station.
  • a control unit 16 comprises, amongst its functions, the control program for the reattachment procedure, with the example connections indicated with a broken line.
  • the winding units that form the spooler individually require a significant suction service with the mouths 8 and 9 in the steps of restoring the continuity of the yarn that has been interrupted, both due to it breaking and to replace its empty spools with new spools.
  • the discontinuous and high head aspiration service for recovering the ends with the mouths 8 and 9 is carried out with an individual aspirator, one for each of the winding units aligned along the front of the machine, which starts operating to catch the aforementioned ends of thread.
  • the individual aspirator provides both the discontinuous high vacuum aspiration service, with winding stopped during the intervention, and the continuous low vacuum service, during winding.
  • the amount of dust that develops during the course of the unwinding of the spool depends both on the progress of the unwinding and on the linear winding speed. At the start of the spool little sliding occurs and a smaller amount of dust develops, whereas at the end of the spool greater sliding occurs and more dust is developed. The development of the dust also depends on the linear winding speed, essentially by centrifugal effect.
  • a cleaning apparatus is commonly provided travelling along the front of the machine. It is provided with nozzles that blow, against the front of the machine, a pressurised fluid, for example compressed air at 100-200 mm H 2 O, at the level of the devices 3 for guiding the thread, of the thread tightener 5 and of the slubcatcher 10, which are the devices most affected by the dust.
  • a pressurised fluid for example compressed air at 100-200 mm H 2 O
  • Such travelling cleaning equipment carries an on-board air compressor to feed its blowing nozzles and patrols the front of the machine with a determined frequency, passing in sequence before each winding unit.
  • Such a device serves its purpose, but involves substantial installation and operating costs and is not without drawbacks.
  • the efficiency of the compressed cleaning air is quite low because the blowing nozzles coincide for a brief period with the axial coordinate of the devices of the winding unit that they must clean.
  • the travelling cleaning equipment also has a substantial bulk and can be a hindrance on the front of the machine.
  • a completely different spooling architecture is provided. According to such an architecture, the winding stations are not absolutely autonomous because, in the case of the thread breaking, they still need external intervention. It describes the use of a service trolley that patrols the front of the spooler to serve the various winding stations that need it. On said trolley various winding devices are placed, like the knotter of the thread and the suction mouth of the thread on the side of the reel.
  • the present invention is aimed at a new cleaning device serving the winding units that make up the spooler, which overcomes the drawbacks described up to now of collective aspiration cleaning systems both with travelling equipment, and those having fixed installation.
  • the present invention in its most general form of a cleaning device for the winding units that make up the spooler is defined in the first claim. Its variants or preferred embodiments are defined in the dependent claims 2 to 3.
  • the present invention in its most general form of a method for cleaning winding units is defined in the fourth claim. Its variants or preferred embodiments are defined in claims 5 to 6.
  • an individual aspiration unit 22 is provided, one for each of the winding units that make up the machine.
  • Such an aspiration unit consists of a rotary aspirator with a centrifugal impeller actuated with a "brushless" electric motor controlled in frequency by the control unit 16 of the winding unit.
  • Such an actuation system is already illustrated in the quoted patent applications EP 1.950.162 and IT 2009A2013 in the name of the same Applicant.
  • the mouths 8 and 9 which catch and move the end on the spool side and on the reel side, respectively, to cooperate with the thread joiner 6 to restore the continuity of the thread, work discontinuously with high vacuum aspiration just to restore the continuity of the thread during the interruptions of normal winding. They are respectively connected to the aspiration side of the aspirator 22 with a duct 24.
  • a filter is placed on said aspiration duct 24 that has the essential function of holding the pieces of thread removed by the action of the aspirator 22 connected to the mouths 8 and 9 and actuated in high vacuum upstream of the aspirator 22, so as not to involve the impeller.
  • Such an operation of catching the end with the mouths 8 and 9 lasts short time periods (about 1-4 seconds per intervention) and requires vacuums, i.e. suction heads, of the order of 600-900 mm H 2 O.
  • the catching of the ends and the joining of the thread, due to the interruption of the thread during the course of the unwinding of a spool, can take place in a variable number, but they definitely occur at each spool change.
  • the spooling station is equipped with a series of fixed nozzles 30 blowing in its points most sensitive to dust, for example at the guiding devices 3, the thread tightener 5 and the slubcatcher 10, as already known from the abstracts of patent applications JP 3143874 and 6100239 .
  • Such nozzles are oriented directly towards the parts to be cleaned and so as to remove the dust out of the path of the thread, for example as illustrated in the arrangement shown in figure 2 .
  • the blowing nozzles 30 are connected to the delivery side of the aspirator 22 by means of a duct 31 and fed with the delivery flow of the aspirator 22, individually equipping each unit or spooling station, so as to reuse such a delivery flow that constitutes the discharge of the aspirator 22, at every intervention thereof to serve the mouths 8 and 9 that are actuated to take the ends of the thread to be joined.
  • the aspirator device 22 is placed in the rear part of the spooling station, having the fixed support structure 20. It is connected to the suction mouths 8 and 9 with its aspiration side 24. Its delivery side, on the other hand, feeds the blowing nozzles 30 and duct 31; such nozzles 30 provided with diffuser terminal 34, oriented towards the outside of the spooling station and arranged, respectively, near to the slubcatcher 10, the thread tightener 5 and the tip of the spool 1, arranged immediately below the devices 3 for guiding the thread. In this way the direction of the flow of cleaning air removes the impurities towards the outside of the winding unit and out of the path of the thread 2.
  • blowing nozzles 30 thus periodically carry out the cleaning of the devices of the spooling station when the thread is interrupted, in other words in the absence of thread and with the spooling station stopped.
  • the cleaning of the path of the thread is much easier, for example since the slubcatcher 10 is free from the thread and the plates of the thread tightener 5 are open: it is possible to inject air into them efficiently and without drawbacks.
  • the action of injecting air into such devices with the presence of the thread in motion during winding is more difficult and less efficient.
  • a silencer 33 is installed on the duct 31 to reduce the noise of the aspirator 22 that operates with high aspiration head with a high number of revolutions.
  • Figure 3 illustrates an exemplifying embodiment wherein the aspirator 22 is mounted with its delivery side directly connected to a distributor container 42 that can also perform the function of the silencer 33 with the adoption of damping internal parts.
  • the blowing nozzles 30 with the terminals 34 are directly connected to the container 42, for example on the wall opposite the delivery of the aspirator.
  • a gate valve 43 is placed, actuated with a piston 44 controlled by the control unit 16 of the winding unit.
  • the gate valve 43 allows the delivery of the aspirator 22 to discharge in a common collector 45 that runs parallel to the axis of the spooler, collecting the discharges of the aspirators 22 that individually equip the winding units.
  • the gate valve 43 performs the function of regulating the pressure and the blowing flow rate in the nozzles 30, partialising the delivery of the aspirator 22 deviating a part thereof towards the discharge in the collector 45 partially opening the gate valve 43.
  • Such an embodiment is also particularly suitable for use of the aspiration device according to patent application IT 2009A2013 in the name of the same Applicant, wherein the aspirator 22 alternatively provides either the high vacuum, for service to the suction mouths 8 and 9, or the low vacuum for services to other uses.
  • the gate valve 43 can be completely opened thus completely discharging its entire flow rate into the collector 45 and leaving the nozzles 30 substantially inactive, or it can be left closed allowing the low flow rate to flow with low vacuum to provide a continuous anti-dust barrier that does not disturb the winding process.
  • the gate valve 43 regulates the blowing with the nozzles 30, remaining closed or modulating the pressure and flow rate in the nozzles 30.
  • the cleaning system according to the present invention offers substantial advantages.
  • the installation and operating costs of travelling equipment are saved and its bulk on the front of the machine is avoided, or the distribution of compressed air for blowing at the fixed nozzles.
  • the winding stations receive a much more efficient cleaning service of the dust-sensitive devices, since it is carried out with the station stopped and with the path of the thread free.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Soil Working Implements (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP20110194240 2010-12-20 2011-12-19 Individual cleaning system for winding units Active EP2465800B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2010A002330A IT1403276B1 (it) 2010-12-20 2010-12-20 Sistema di pulizia individuale per unita' di roccatura

Publications (2)

Publication Number Publication Date
EP2465800A1 EP2465800A1 (en) 2012-06-20
EP2465800B1 true EP2465800B1 (en) 2013-06-05

Family

ID=43736985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110194240 Active EP2465800B1 (en) 2010-12-20 2011-12-19 Individual cleaning system for winding units

Country Status (3)

Country Link
EP (1) EP2465800B1 (zh)
CN (1) CN102658995B (zh)
IT (1) IT1403276B1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20130115A1 (it) * 2013-04-30 2014-10-31 Savio Macchine Tessili Spa Roccatrice
DE102014008524A1 (de) * 2014-06-07 2015-12-17 Saurer Germany Gmbh & Co. Kg Verfahren und Vorrichtung zur Überwachung der Leerhülsenqualität
DE102015003552A1 (de) * 2015-03-19 2016-09-22 Saurer Germany Gmbh & Co. Kg Verfahren, Vorrichtung und Computerprogramm zur Zuteilung von Saugluft auf Saugluft anfordernde Arbeitsstellen einer Textilmaschine
CN109775446B (zh) * 2019-01-16 2023-11-10 浙江凯成智能设备股份有限公司 一种精密络筒机
CN111330917B (zh) * 2020-04-21 2024-01-02 南通芯盟测试研究院运营管理有限公司 微电子器件编带的除尘装置
CN111705389A (zh) * 2020-06-30 2020-09-25 张�浩 一种棉质纺织纱线制造去绒加工处理方法
CN112374277B (zh) * 2020-11-12 2022-07-05 海宁市华欣制衣有限公司 一种具有联动式挤压压紧功能的纺织加工用收卷装置
CN112441473A (zh) * 2020-11-25 2021-03-05 国网四川省电力公司南充供电公司 一种应用于城市地下输电线的回收装置
CN112707244B (zh) * 2021-02-02 2023-05-16 苏州市好迪医疗器械有限公司 一种医用绷带可适应多规格收卷辊及定长的收卷装置
CN114348782B (zh) * 2022-01-17 2023-06-30 东美(苏州)实业有限公司 一种特种纤维服装生产系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1188285A (fr) * 1956-12-13 1959-09-21 Bobinoir
BE603323A (fr) * 1960-05-19 1961-09-01 Leesona Corp Procédé de nettoyage à utiliser avec une machine textile
DE2419188C2 (de) * 1974-04-20 1984-07-05 Ltg Lufttechnische Gmbh, 7000 Stuttgart Reinigungseinrichtung für eine Flügelspinnmaschine
DE2903139A1 (de) * 1979-01-27 1980-08-07 Schlafhorst & Co W Verfahren und vorrichtung zum verhindern der abgabe von staub und faserteilen aus den arbeitszonen einer textilmaschine
JPH03143874A (ja) * 1989-10-27 1991-06-19 Murata Mach Ltd ワインダの風綿除去方法
JPH06100239A (ja) * 1992-09-18 1994-04-12 Murata Mach Ltd 自動ワインダーの清掃装置
IT1269702B (it) * 1994-01-11 1997-04-15 Savio Macchine Tessili Srl Metodo ed apparecchiatura per aspirare e per asportare automaticamente la lanuggine e il pulviscolo in una stazione di roccatura
ITMI20070133A1 (it) 2007-01-29 2008-07-30 Savio Macchine Tessili Spa Sistema di aspirazione per roccatrici
DE102009049389A1 (de) * 2009-10-14 2011-04-21 Oerlikon Textile Gmbh & Co. Kg Kreuzspulen herstellende Textilmaschine

Also Published As

Publication number Publication date
CN102658995A (zh) 2012-09-12
ITMI20102330A1 (it) 2012-06-21
IT1403276B1 (it) 2013-10-17
EP2465800A1 (en) 2012-06-20
CN102658995B (zh) 2016-01-20

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