EP2481700B1 - System zum Sammeln von Wickelabfällen - Google Patents

System zum Sammeln von Wickelabfällen Download PDF

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Publication number
EP2481700B1
EP2481700B1 EP20120152946 EP12152946A EP2481700B1 EP 2481700 B1 EP2481700 B1 EP 2481700B1 EP 20120152946 EP20120152946 EP 20120152946 EP 12152946 A EP12152946 A EP 12152946A EP 2481700 B1 EP2481700 B1 EP 2481700B1
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EP
European Patent Office
Prior art keywords
filters
fluffs
aspirator
winding
collecting
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
EP20120152946
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English (en)
French (fr)
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EP2481700A1 (de
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
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Savio Macchine Tessili SpA
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Publication of EP2481700A1 publication Critical patent/EP2481700A1/de
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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
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • 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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/707—Suction generating system
    • 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 a device for collecting scraps produced in the course of the winding process by the units that make up the automatic winder.
  • spoolers consist of a plurality of winding units aligned along the front of the machine and equipped with common control and service apparatuses.
  • common service apparatuses there are devices for preparing the spools to be unwound in the winding units.
  • both the discontinuous and high head suction service, for recovering the ends through the mouths 9 and 10, and the continuous low head service, for dust removal through the mouths 20 are carried out through an individual aspirator 22, one for each of the winding units aligned along the front of the machine.
  • Such a suction unit consists of a rotary aspirator with a centrifugal impeller 25 actuated through a brushless electric motor 26 controlled in frequency by the control unit 16 of the winding unit.
  • the mouth 20 of the dust removal service with continuous low depression suction is connected through a duct 30 to the suction unit of the winding unit, intercepted by a slide valve 31, controlled by the control unit 16 of the winding unit and normally kept open during the normal winding process.
  • the mouths 9 and 10 work discontinuously with high depression suction during the interruptions to normal winding. They are respectively connected through a duct 34 to the suction unit 22 of the winding unit, intercepted by a slide valve 35, controlled by the control unit 16 of the winding unit and normally kept closed during the normal winding process.
  • the slide valve 35 is opened on occasion of the joining interventions.
  • the individual suction unit 22 that equips the single winding unit 23 serves either the duct 30 of the low depression dust removal service or the duct 34 of the high depression suction.
  • the different depression values required for the two alternative suction services are obtained by actuating the centrifugal aspirator 22 at different speeds, which has characteristic curves of the suction depression ⁇ P that varies inversely to the flow rate in volume, according to a band of parallel curves increasing with the increase in rotation speed, as already described in the quoted application IT 2009A2013 in the name of the same Applicant.
  • the two ducts 30 and 34 of each winding station are each equipped with own filter that has the function of holding the material drawn and transported through the suction.
  • an individual filter 51 is placed with coarser mesh filtering septum that has the function of holding upstream the lengths of thread, the so-called “fluffs", removed by the high depression suction by the aspirator 22 when it is connected to the mouths 9 and 10 and actuated at high depression.
  • the linear size of the fluffs can range from tens of centimetres, in the normal preparation of the joining of the thread, up to tens of metres and even more, due to long defects of the count of the yarn detected with the slubcatcher.
  • the two individual filters 50 and 51 are connected to the suction manifold of the aspirator 22 through two fittings 30' and 34' respectively and they operate alternately. During the filtering of the sucked air, the material transported is stopped by their filtering septums and, once the suction stops, falls and collects on the bottom of the filter.
  • the material thus collected is periodically discharged, respectively through two ducts 53 and 54, intercepted with two slide valves 57 and 58, which then join up in a common discharge duct 59.
  • the two filters 50 and 51 are equipped with venting valves 60 and 61 for the discharging operations of the collected material.
  • the opening of such venting valves 60,61 preferably isolates their filter 50,51 from the aspirator 22.
  • Figure 2 illustrates the assembly of the system for collecting winding scraps.
  • All of the individual discharges 59 of the winding units 23 are connected to a common collector 70, which collects all of the separated material in the respective filters 50 and 51.
  • To the collector 70 can also advantageously be connected the devices 63 for preparing the spools, for example as described in patent application IT 2009 A 2011 and here shown schematically.
  • Such devices generate a significant quantity of residual yarn lengths, sucked through an individual aspirator 64, deposited in mesh filters 65 and discharged through a duct 68, with a scheme equipped with discharge and venting slide valves 66 and 67 entirely analogous to that of the filters 51 of the winding unit according to figure 1 .
  • All filters 50, 51 and 65 are connected through the collector 70 to a collective system for collecting their scraps, consisting of a small sized duct that is arranged along the machine and that receives the flow coming from all winding units 23 and, preferably, also the devices 63 for preparing the spools.
  • the collector 70 is served by a high depression aspirator 71, which provides for the periodical discharging of the material of the filters through pneumatic transportation to an inertial filter 80 that is described in greater details in figures 3A and 3B .
  • the needs of discharging the material held by the filters is highly variable, according to the yarns treated in the winder. As a general rule, a greater frequency of discharging is required by devices for preparing the spools that require the cleaning of their filters even every 10-20 minutes, in the order of magnitude of a few hundreds of spools prepared.
  • the coarse mesh filters 51 that hold the fluffs, produced by the joining of the threads and by the elimination of defective sections, generally require cleaning with a period of the order of magnitude of an hour.
  • the filters 50 for fine dusts - unless it concerns very hairy yarns - require cleaning with a period of the order of magnitude of a work shift.
  • the periodic cleaning of the filters is carried out firstly for one kind of material, for example the fluffs for all filters 51 and 63, and then for the other material.
  • Such cleaning is preferably carried for one filter at a time while its winding unit 23 is operating.
  • the operation takes a few seconds and is carried out, for the winding units 23, firstly by opening the venting valves 60 or 61, closing the valves towards the winding unit 31 or 35, thus preventing the cleaning of the filter 50,51 from affecting the winding in its normal operation, and then opening the venting valve, 57 or 58, of the duct 53 or 54, with the aspirator 71 in action. Its suction draws air from the vents, 60 or 61, and empties the filters of the material collected taking it into the inertial filter 80.
  • figure 3A illustrates an outer isometric view of the inertial filter 80
  • figure 3B shows the casing of the filter in section to show its internal separation into two filtering parts, one for the fluffs and the other for the fine dust.
  • the filter 80 consists of a parallelepiped casing divided into two filtering chambers, respectively indicated with 81 for the fluffs and with 82 for the dusts and separated with a hermetic wall 83.
  • the two filtering chambers 81 and 82 are placed under depression by the aspirator 71 alternately, opening or closing the intercepting valves 84 and 85 arranged on the ducts 86,87 which connect the two filtering chambers 81,82 to the suction side of the aspirator 71.
  • the two valves 84 and 85 are actuated through the relative actuators 84A,85A by the control unit of the winder for the cleaning operation of the individual filters that equip the winding stations that make up the winder.
  • the left filtering chamber 81 for the fluffs is divided into a central part 91 and into two side parts 92, separated by two coarse mesh filtering walls 93 that hold the lengths of thread.
  • the two side parts 92 are connected to the aspirator 70 through the opening 94.
  • the individual filters 51 are cleaned one at a time by opening their valves 58 and their respective venting valves 61 in sequence.
  • the procedure is totally analogous.
  • a suction depression of 10-13 kPa or 1000-1300 mm of water column is applied.
  • Such depression values refer to the depression applied in the filters 50, 51 and 65 to be cleaned, whereas the depression values in the members downstream are affected by the load losses of the overall circuit.
  • the transport speed in the ducts is kept around 20 m/sec.
  • the duct 70 splits into two branches 73 and 74.
  • the branch 73 enters the filtering chamber 81 of the fluffs on the opposite side to the blind separating wall 83 and ends with a converging nozzle 75 to accelerate the speed of the transport air and of the material transported, i.e. the fluffs.
  • the material thus accelerated hits the blind bottom of the wall 83, loses its kinetic energy and falls onto the bottom of the chamber 81, whereas the transport air passes through the filtering walls 93, enters the two side parts 92, passes through the openings 94 and the discharge ducts 86 towards the aspirator 71 and discharges from the delivery side 95 of the aspirator 71.
  • the filtering walls 93 are arranged parallel to the direction of the flow and are not directly hit by the material transported.
  • an opening gate 97 is placed for periodically discharging the filtered material consisting of the fluffs.
  • the filtering surface consisting of the meshes 93 can be further increased by joining the two side spaces 92 in the upper part with an upper space 96 delimited through a mesh septum 93 arranged in the upper part of the space 91, as shown schematically in figures 2 and 3A .
  • the right filtering chamber 82 for the dusts is also divided into three parts: a central part 101 and two side parts 102, separated by two fine mesh filtering walls 103 that holds the dusts and the hairs of the thread.
  • the two side parts 102 are connected to the aspirator 70 through the opening 104.
  • the individual filters 50 are cleaned one at a time by opening their valves 57 and their respective venting valves 60 in sequence.
  • opening their valves 57 and their respective venting valves 60 in sequence.
  • the branch of duct 74 In order to obtain a lower speed of the fluid arriving into the filtering chamber 82 of the dusts it is sufficient for the branch of duct 74 to be made with a greater diameter, for example to obtain a transport speed in the ducts of around 10 m/sec.
  • the branch 74 of the transport duct enters from the upper side the filtering chamber 82, which constitutes a calm area wherein the transport air of the dusts slows down substantially: a part of the dust deposits immediately in the bottom of the chamber 82 and the rest of the dusts deposits onto the fine mesh filtering septums 103, whereas the transport air passes beyond through the openings 104 and the discharges 87 towards the aspirator 71 and discharges from the delivery side 95 of the aspirator 71.
  • an opening gate 107 is placed for periodically discharging the filtered material consisting of the dusts.
  • the suction device 71 is equipped with an impeller that can be actuated in counter-rotation to generate a counter-pressure, for example with a lateral channel impeller.
  • a counter-pressure facilitates the fall of the material still sticking to the mesh filtering septums 93 and 103.
  • the filtering meshes 93 and 103 which make up the separating septums of the transported material, are not hit directly by the material to be separated, thus giving both a greater and constant filtering efficiency and a greater possibility of collecting sedimented material prior to the periodic discharge.
  • the two materials, fluffs and dusts, are processed separately under conditions specifically suited to the two materials, both in terms of filtering septums and in terms of speed.
  • the device for discharging the winding scraps according to the present invention also permits to carry out such discharging through a single duct, and moreover with a small diameter, and with low suction powers installed, since the discharging of one filter at a time is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treating Waste Gases (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (8)

  1. Vorrichtung zum Sammeln von Abfällen, die von einer Wickelmaschine erzeugt werden, die durch eine Vielzahl von Wicklungseinheiten (23) gebildet wird, die von einem Saugsystem, das durch eine Vielzahl von einzelnen Saugapparaten (22), die jede Wickeleinheit (23) einzeln ausstatten, gebildet wird, ausgerichtet und angeliefert werden, wobei jeder einzelne Saugapparat (22) abwechselnd einen kontinuierlichen niedrigen Unterdrucksog für den Dienst der Entfernung von Staub und Haaren von dem Garn oder den "Staubentfernungsdienst" liefert, wenn die Wicklung in Betrieb ist, oder einen diskontinuierlichen Sog mit hohem Unterdruck zum Entfernen von Fadenlängen oder Fusseln, die von den Wiederaufnahme- und Verbindungsarbeitsgängen des Garns herrühren, wenn das Wickeln einmal unterbrochen wird, liefert, wobei jeder einzelne Saugapparat (22) mit einem Paar von Filtern versehen ist, um das angesaugte Material zu trennen, wobei derartige Filter parallel und abwechselnd arbeitend angeordnet sind, und wobei ein Filter (50) von ihnen dafür gedacht ist, den Staub zurückzuhalten und ein Filter (51) dafür gedacht ist, die Fussel zurückzuhalten, und wobei alle Filter (50) und (51) der Wicklungsstationen (23), welche die Wickelmaschine bilden, durch einen gemeinsamen Kanal (17) mit einem gemeinsamen Trägheitsfilter (80) zum Sammeln von Wickelabfällen verbunden sind, welches das von den Filtern (50) oder (51) zurückgehaltene Material regelmäßig eines nach dem anderen und für jedes Material getrennt abgibt und aufnimmt, und wobei das Trägheitsfilter (80) durch zwei getrennte und abwechselnd arbeitende Filterkammern (81, 82) gebildet ist: eine Kammer (81) zum Sammeln von getrennten Fusseln durch Filter (51) und die andere zum Sammeln von getrenntem Staub durch Filter (50), wobei die zwei Filterkammern mit einem Saugapparat abwechselnd in Unterdruck versetzt werden.
  2. Vorrichtung zum Sammeln von Abfall, der durch eine Wickelmaschine erzeugt wird, nach Anspruch 1, dadurch gekennzeichnet, dass Vorrichtungen (63) zum Herstellen einiger Spulen, welche die Wickelmaschine ausstatten, ebenfalls mit ihr verbunden sind, um die jeweiligen Filter (65) abzugeben, welche eine erhebliche Menge von Restgarnlängen sammeln.
  3. Vorrichtung zum Sammeln von Abfällen, die durch eine Wickelmaschine erzeugt werden, nach Anspruch 1, dadurch gekennzeichnet, dass die Filterkammer (81) der Fussel durch einen Kanal (73) gespeist wird, der die Transportluft mit den transportierten Fusseln zu der Kammer (81) führt, bis sie mit dem verdeckten Boden einer Wand (83) kollidiert, so dass die Fussel kinetische Energie verlieren und auf den Boden der Kammer (81) fallen, während die Transportluft abgegeben wird, wobei sie die Filterwände (93) durchläuft, die parallel zu der Strömungsrichtung angeordnet sind und die nicht direkt von dem Material, das getrennt werden soll, belagert werden.
  4. Vorrichtung zum Sammeln von Abfällen, die von einer Wickelmaschine erzeugt werden, nach Anspruch 3, dadurch gekennzeichnet, dass der Kanal (73) mit einer konvergierenden Düse (75) endet, um die Geschwindigkeit der Transportluft und des transportierten Materials zu beschleunigen.
  5. Vorrichtung zum Sammeln von Abfällen, die von einer Wickelmaschine erzeugt werden, nach Anspruch 3, dadurch gekennzeichnet, dass die Filterkammer (81) für die Fussel in einen mittleren Teil (91) und in zwei seitliche Teile (92) geteilt ist, welche durch zwei Filterwände (93) getrennt sind und mit dem Saugapparat verbunden sind.
  6. Vorrichtung zum Sammeln von Abfällen, die von einer Wickelmaschine erzeugt werden, nach Anspruch 5, dadurch gekennzeichnet, dass die zwei seitlichen Räume (92) in dem oberen Teil mit einem oberen Raum (96) verbunden sind, der von einer Netztrennwand (93) begrenzt wird, die auf dem oberen Teil des Raums (91) angeordnet ist.
  7. Vorrichtung zum Sammeln von Abfällen, die von einer Wickelmaschine erzeugt werden, nach Anspruch 1, dadurch gekennzeichnet, dass beide Filterkammern (81) für die Fussel und für den Staub abwechselnd mit dem gleichen Saugapparat (71) verbunden werden, der die eine oder die andere Kammer bedient, indem Abfangventile (84) und (85), die auf den Verbindungskanälen (86, 87) der zwei Filterkammern (81, 82) angeordnet sind, zu der Ansaugseite des Saugapparats (71) geöffnet und geschlossen werden.
  8. Vorrichtung zum Sammeln von Abfällen, die von einer Wickelmaschine erzeugt werden, nach Anspruch 1, dadurch gekennzeichnet, dass die Saugvorrichtung (71) ein Saugapparat mit einem seitlichen Kanal ist.
EP20120152946 2011-01-31 2012-01-27 System zum Sammeln von Wickelabfällen Active EP2481700B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2011A000112A IT1403662B1 (it) 2011-01-31 2011-01-31 Sistema di raccolta degli sfridi di roccatura

Publications (2)

Publication Number Publication Date
EP2481700A1 EP2481700A1 (de) 2012-08-01
EP2481700B1 true EP2481700B1 (de) 2014-01-29

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EP (1) EP2481700B1 (de)
CN (1) CN102616610B (de)
IT (1) IT1403662B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700117533A1 (it) * 2017-10-18 2019-04-18 Futura Spa Impianto per la trasformazione di materiale cartaceo
DE102018131571A1 (de) * 2018-12-10 2020-06-10 Saurer Spinning Solutions Gmbh & Co. Kg Saugluftanlage
CN111387879B (zh) * 2020-03-19 2021-05-04 福建永荣锦江股份有限公司 一种纺丝车间废丝处理系统
IT202100018119A1 (it) * 2021-07-09 2023-01-09 Savio Macch Tessili Spa Roccatrice con impianto di aspirazione e raccolta sfridi perfezionato e relativo metodo di controllo

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1203739A (fr) * 1958-04-01 1960-01-20 Installation de dépoussiérage intégral par aspiration échelonnée avec chevauchement
JPH07118959A (ja) * 1993-10-19 1995-05-09 Japan Le-Wa Kk ワインダーにおける清掃装置
ITMI20070133A1 (it) * 2007-01-29 2008-07-30 Savio Macchine Tessili Spa Sistema di aspirazione per roccatrici
IT1396438B1 (it) * 2009-11-16 2012-11-23 Savio Macchine Tessili Spa Sistema di aspirazione individuale per unita' di roccatura.

Also Published As

Publication number Publication date
CN102616610A (zh) 2012-08-01
IT1403662B1 (it) 2013-10-31
CN102616610B (zh) 2016-01-20
EP2481700A1 (de) 2012-08-01
ITMI20110112A1 (it) 2012-08-01

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