EP0546644A1 - Dispositif d'aspiration pour les machines textiles, en particulier pour un métier à filer à anneaux - Google Patents

Dispositif d'aspiration pour les machines textiles, en particulier pour un métier à filer à anneaux Download PDF

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Publication number
EP0546644A1
EP0546644A1 EP92203877A EP92203877A EP0546644A1 EP 0546644 A1 EP0546644 A1 EP 0546644A1 EP 92203877 A EP92203877 A EP 92203877A EP 92203877 A EP92203877 A EP 92203877A EP 0546644 A1 EP0546644 A1 EP 0546644A1
Authority
EP
European Patent Office
Prior art keywords
suction
column
spinning
ducting
spinning machine
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Withdrawn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
EP92203877A
Other languages
German (de)
English (en)
Inventor
Alessandro Mirri
Vittorio Vernocchi
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 SpA
Savio Macchine Tessili SpA
Original Assignee
Savio SpA
Savio Macchine Tessili SpA
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 Savio SpA, Savio Macchine Tessili SpA filed Critical Savio SpA
Publication of EP0546644A1 publication Critical patent/EP0546644A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H11/00—Arrangements for confining or removing dust, fly or the like
    • D01H11/005—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices

Definitions

  • This invention relates to a suction system arranged to remove trash, fibre fluff and broken threads along the spinning faces of ring spinning machines which produce yarn to be deposited on rod-shaped tubes to obtain wound yarn packages.
  • Said ring spinning machines normally comprise a plurality of working positions on two opposing faces, and are therefore very long.
  • Textile machines comprise suction ducts for the most varied purposes, for example to clean determined parts of the machine, to remove fibre trash and to draw off excessive yarn ends or pieces of cut yarn or the like. It is well known that in drafting systems of spinning machines, a fibre bundle consisting of an assembly of fibres of varying lengths is subjected to considerable traction stresses resulting in separation of a certain quantity of in particular short fibres and the formation of trash. It is therefore necessary to clean the drafting members and remove the flying fibrillae and fibres and the trash from the various machine parts and from the yarn under formation. It is also necessary to draw off and remove any pieces of broken yarn.
  • the suction action has to be effective and uniform along the entire spinning face.
  • the spinning faces of ring spinning machines are of considerable horizontal extension of some tens of metres, as the spinning spindles can be present in a quantity of the order of a thousand, one following the other.
  • the cross-sectional area of the air suction duct and the power of the Pneumatic system therefore become relatively large, with consequent high system and operating costs.
  • the continuous draw-off of trash, fibres and broken threads in known systems is insufficient in those regions farthest from the motor-driven suction fan or other type of suction device which provides the suction action.
  • the air throughput in a central suction system, in which a suction duct extends along the entire spinning face to serve all the spinning spindles via suction nozzles or slits is represented by the total air quantity necessary in order to achieve an energetic suction action at the spinning spindles.
  • the air speed within the ducts and through the suction slits must be sufficiently high, and the vacuum level produced must take account of the continuous and local pressure drops.
  • Fibres, dust and broken threads which have not been properly drawn off from the suction tubes often trigger their clogging, so blocking the suction action required for continuous cleaning of the spindles, which are hence subjected to progressive deposition of fibre trash on their various parts and on the yarn under formation.
  • the causes of this are the presence of a single suction duct from which all the suction tubes extend, of which there are more than one for each spinning spindle, and also the presence of a single motor-driven suction fan located at the headstock of the spinning machine.
  • the slits in the suction tubes which are of small cross-section, are easily and frequently clogged because the suction action is weak, so that the suction effectiveness falls off considerably after a few hours of working, making frequent maintenance and cleaning of the suction slits necessary.
  • An object of the present invention is to provide a suction system for removing fibre trash and broken fibre pieces in spinning machines which is free of the aforesaid drawbacks and is able to perform its function with greater effectiveness and for a longer time, without requiring frequent maintenance.
  • a further object of the present invention is to rationalize the construction of the suction system of a ring spinning machine, both in terms of its capacity and of its suction efficiency in effectively removing fibrils and floating yarn pieces from the suction spindles.
  • a further object of the present invention is to provide a pneumatic suction system of new while at the same time simple concept, which makes it possible to put under suction several regions which integrate and complete the entire suction operation with further functions required for the particular application underway.
  • suction system of the present invention arranged on a spinning machine of considerable longitudinal extension, in particular a ring spinning machine, wherein said suction system comprises two manifold channels which extend along the entire spinning face one above the other, the manifold channel in the lower position comprising a suction column which connects it, along the entire length of the spinning machine, to floor ducting and which is put under vacuum by at least one motor-driven axial suction fan positioned in the end part in proximity to where the converging mouth of the column enters the ducting, said connection mouth comprising considerable lateral apertures.
  • the said converging mouth between the column and the ducting is coaxial and central so as to comprise substantially equal lateral apertures, said converging mouth acting as an ejector to energetically draw through the apertures the surrounding air below the spinning machine, and also to convey the air blown by the mobile blower which moves along the machine to be cleaned.
  • the said lateral apertures are substantially shaped to converge both along the entry portion and frontally at the end part of the mouth between the column and the ducting.
  • FIG. 1 shows a schematic front sectional view of the suction system of the invention, the sectional view showing the upper manifold channel operating on the drafting roller and the lower manifold channel operating on the spinning spindles, the figure also schematically showing the suction column of the lower manifold channel, which opens into the factory floor ducting, with the presence of an axial suction flow.
  • the machine headstock ie at the end of the spinning machine, there is a suction fan which puts the manifold channel 2 under vacuum.
  • the fibre trash and the dust present around the drafting unit 15 are drawn off by the slit in the tube 14 and conveyed into the manifold channel 2 which conveys them within its air stream to the end of the spinning machine 10 where they are retained by filtering surfaces, as is well known.
  • the fibre trash, dust and broken yarn pieces present in proximity to the spinning spindle 11 are drawn off through the suction mouths 8 of the hoses 9 and conveyed into the air stream of the suction column 3, put under vacuum by the action of the axial suction fan 1, to be fed into the factory suction ducting system 6.
  • Said forced air stream deriving from the fan 1 leads to a considerable draw-in of the surrounding air below the spinning machine, and also energetically draws in the air blown by the projections 7 of the mobile blower, to achieve an optimum result in cleaning the entire spinning machine in that the trash and dust are removed with the greatest possible care and rapidity during the spinning process.
  • the result is a better environment for the service personnel, a better product yarn quality and improved cleaning of the machinery, which no longer requires frequent and costly maintenance.
EP92203877A 1991-12-13 1992-12-11 Dispositif d'aspiration pour les machines textiles, en particulier pour un métier à filer à anneaux Withdrawn EP0546644A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI913351A IT1252210B (it) 1991-12-13 1991-12-13 Impianto aspiratore per macchinario tessile e in particolare per filatoio ad anello.
ITMI913351 1991-12-13

Publications (1)

Publication Number Publication Date
EP0546644A1 true EP0546644A1 (fr) 1993-06-16

Family

ID=11361332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92203877A Withdrawn EP0546644A1 (fr) 1991-12-13 1992-12-11 Dispositif d'aspiration pour les machines textiles, en particulier pour un métier à filer à anneaux

Country Status (2)

Country Link
EP (1) EP0546644A1 (fr)
IT (1) IT1252210B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108193334A (zh) * 2018-03-28 2018-06-22 湖北天门纺织机械股份有限公司 一种环锭细纱机新型吸棉装置
EP3514275A1 (fr) * 2018-01-19 2019-07-24 Murata Machinery, Ltd. Structure de fusion pour tuyaux d'aspiration et unité d'enroulement de fil, machine à filer et machinerie textile l'incluant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116815375B (zh) * 2023-08-28 2023-11-24 常州虹纬纺织有限公司 一种竹节纱生产系统及其工作方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412545A (en) * 1967-05-22 1968-11-26 Luwa Ltd Pneumatic cleaner for roving frames and the like
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
JPS6262936A (ja) * 1985-09-13 1987-03-19 Nisshinbo Ind Inc 紡機における清掃装置
DE8908921U1 (fr) * 1989-07-22 1989-11-02 Zinser Textilmaschinen Gmbh, 7333 Ebersbach, De
EP0395591A1 (fr) * 1989-04-25 1990-10-31 Howa Machinery, Ltd. Dispositif de nettoyage pour machine de filature
EP0487119A1 (fr) * 1990-10-23 1992-05-27 SAVIO S.p.A. Métier à filer avec un système d'aspiration pneumatique pour l'élimination de poussière, de fibres volantes et de résidus de fil

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412545A (en) * 1967-05-22 1968-11-26 Luwa Ltd Pneumatic cleaner for roving frames and the like
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
JPS6262936A (ja) * 1985-09-13 1987-03-19 Nisshinbo Ind Inc 紡機における清掃装置
EP0395591A1 (fr) * 1989-04-25 1990-10-31 Howa Machinery, Ltd. Dispositif de nettoyage pour machine de filature
DE8908921U1 (fr) * 1989-07-22 1989-11-02 Zinser Textilmaschinen Gmbh, 7333 Ebersbach, De
EP0487119A1 (fr) * 1990-10-23 1992-05-27 SAVIO S.p.A. Métier à filer avec un système d'aspiration pneumatique pour l'élimination de poussière, de fibres volantes et de résidus de fil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 262 (C-442)(2709) 25 August 1987 & JP-A-62 062 936 ( NISSHINBO IND ) 19 March 1987 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3514275A1 (fr) * 2018-01-19 2019-07-24 Murata Machinery, Ltd. Structure de fusion pour tuyaux d'aspiration et unité d'enroulement de fil, machine à filer et machinerie textile l'incluant
CN110055641A (zh) * 2018-01-19 2019-07-26 村田机械株式会社 吸引配管的合流构造、具备其的纱线卷取单元及纺纱机械
CN108193334A (zh) * 2018-03-28 2018-06-22 湖北天门纺织机械股份有限公司 一种环锭细纱机新型吸棉装置
CN108193334B (zh) * 2018-03-28 2023-11-21 湖北天门纺织机械股份有限公司 一种环锭细纱机新型吸棉装置

Also Published As

Publication number Publication date
ITMI913351A1 (it) 1993-06-13
IT1252210B (it) 1995-06-05
ITMI913351A0 (it) 1991-12-13

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