EP0137070A1 - Dispositif pour nettoyer ou souffler des parties d'une machine à tisser - Google Patents

Dispositif pour nettoyer ou souffler des parties d'une machine à tisser Download PDF

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Publication number
EP0137070A1
EP0137070A1 EP83110111A EP83110111A EP0137070A1 EP 0137070 A1 EP0137070 A1 EP 0137070A1 EP 83110111 A EP83110111 A EP 83110111A EP 83110111 A EP83110111 A EP 83110111A EP 0137070 A1 EP0137070 A1 EP 0137070A1
Authority
EP
European Patent Office
Prior art keywords
air
thread
weft
air outlet
round body
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.)
Granted
Application number
EP83110111A
Other languages
German (de)
English (en)
Other versions
EP0137070B1 (fr
Inventor
Andreas Dr. Schachenmann
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Priority to EP83110111A priority Critical patent/EP0137070B1/fr
Priority to DE8383110111T priority patent/DE3380966D1/de
Priority to US06/655,211 priority patent/US4566497A/en
Priority to JP59211200A priority patent/JPS6099045A/ja
Publication of EP0137070A1 publication Critical patent/EP0137070A1/fr
Application granted granted Critical
Publication of EP0137070B1 publication Critical patent/EP0137070B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/002—Climatic conditioning or removing lint or dust

Definitions

  • the invention relates to a device for cleaning or blowing out workplaces in a weaving machine, which device consists of at least one line pressurized with compressed air with at least one slot-like air outlet, the air emerging from the air outlet being routed periodically over the work stations.
  • a problem area in this regard is the area of yarn feed and weft insertion in looms. If flight accumulation is not prevented in this zone, the flight gets into the shed together with the weft thread and there leads to fabric contamination. This is particularly serious if the flight has already been contaminated with lubricating oil in the weft before it is taken along by the weft. Flight entered into the tissue reduces the tissue quality to an undesirable extent. .
  • the object of the invention is to provide a structurally simple device which can be implemented with little effort and with which fiber fly can be transported away from the work stations to one side, for example from the weft mechanism against the direction of the thread.
  • This object is achieved according to the invention in that the air outlet comprises a continuously rotating round body, which periodically generates one-sided deflections of the air jet emerging from the nozzle.
  • the periodically one-sided deflected air jets "sweep" the fiber flight away like a broom to one side, whereby in contrast to devices with stationary air jets no dead spaces for flight accumulations can form.
  • the flight is transported away in a defined direction without the need for special control of the air supply.
  • a drive for a continuously rotating round body is simpler than a swivel mechanism.
  • the air outlet can be directed rigidly against the work place to be cleaned and the round body can be arranged next to the outlet opening in the deflection direction to produce a Coanda effect.
  • the round body is, for example, a step body with at least one step; however, it can be particularly advantageously displaced relative to one another along a diameter Circular cylinder sectors with the same radii exist, where expediently there are two to four steps on the circumference of the step body.
  • a further advantageous possibility for the construction of the new device is provided if the cylinder closes off the pressure line as a hollow cylinder and has blow-out nozzles distributed over the circumference in its jacket, it also being mounted in a fixed housing provided with an opening directed towards the work station can.
  • the round body can be driven either by a motor or by the air to be deflected itself, limiting the number of deflections per min. - Advantageously 1-60, preferably up to 30, deflections / min. -
  • the speed of the round body can be controlled by an adjustable friction brake.
  • the new air outlet for cleaning the weft insertion area of a weaving machine, it is advantageous to install the new air outlet in a whole system of cleaning nozzles, the air outlet expediently being arranged in the area of the thread tensioner and the thread brake or being displaced out of it in the direction of the thread transfer zone.
  • the system mentioned can be completed by a slit nozzle arranged downstream of the air outlet in the direction of the weft thread and extending transversely to the weft thread direction, which places a vertical air curtain between the thread scissors and the weft mechanism.
  • a cover plate delimits the air curtain on the weaving side on the thread inlet side of the thread scissors.
  • Another perfection can be achieved if an air blow-out nozzle is arranged between the air outlet and the slot nozzle in the weft running direction, the air jet of which is directed obliquely opposite the weft running at the weft area from above.
  • a compressed air line ends at the air outlet 1 according to FIG. 1 in a housing which is closed at its free end by a rear wall, not shown; this creates a pressure chamber 2 in it.
  • This has a tangential, narrowing funnel-shaped outlet slot 3, which is formed by a side wall 4 of the housing and a molded body 5 in its interior.
  • a round body 6, which can rotate about its axis 7, is provided after the outlet slot 3 below the shaped body 5, an electric motor (not shown) being used for its drive, for example.
  • the axis 7 is laterally offset against the outlet slot 3 such that the curved surfaces of the round body 6, which in the example shown consist of two halves of a circular cylinder jacket separated and shifted along a diameter 8, protrude into the air stream emerging from the outlet slot 3 and this deflect on one side towards the round body 6.
  • the steps 9 of the round body 6 produced by the displacement of the cylinder halves cause the flow lying against the curved surface to break off after half a turn of the round body 6, as a result of which the deflection of the air jet is canceled and the air flow "springs back" in the direction of the outlet slot 3 . If there is a uniform and continuous rotation of the round body 6, which is partially encompassed on one side by a wall 18 of the housing opposite the wall 4, a periodically one-sided deflected air jet is generated in this way, which acts as an "air broom" on one side of the weaving machine "turns away".
  • part of the round body 5 is designed as a gearwheel-like air turbine 10, which represents a self-drive for the rotation of the round body 6.
  • This self-propulsion would, however, leave itself too high speeds for the round body 6, which, as already mentioned, with a two-stage design a maximum of 30 rpm. may be; the self-propulsion is therefore braked by a friction brake 11 acting only schematically and acting on the axle 7. Since the braking force required to maintain a certain speed changes during operation - for example due to contamination in the fan of the "air drive" and / or in the bearing of the round body 6, this braking force can be set, which is not expressly shown.
  • the round body is a hollow cylinder 13 connected to a pressure line 12, which can rotate, driven by the air to be deflected or by an electric motor, via the shaft 17. It has two diametrically opposed air outlet slots 14 and is seated in a likewise hollow cylindrical housing 15 which closes off the pressure line 12. In the circumference of the housing 15, an angular range 16 is excluded over the width of the slots 14, which, when the hollow cylinder 13 rotates, the necessary one-sided deflection of the air jet for the "air broom" effect.
  • Fig. 4 is the inverse of Fig. 3; here is a rotating hollow cylinder 23, which in turn has slots 24, on the outside on a housing 25 which closes off the pressure line 22 and in which there is a recess 26 for the “sweeping area of the air brush”.
  • Fig. 5 shows a view of the weft insertion area of a weaving machine in the direction opposite to the weft thread run, i.e. seen from the machine, to an air supply, not shown, which expediently consists of a fan assigned to the individual machine and possibly driven by it - or by a separate electric motor - which draws in air from the weaving room and a compressed air distribution line, also not shown
  • an air supply not shown
  • a slot nozzle 30 which is transverse to the weft direction and an air blow nozzle 31 directed obliquely against the weft mechanism 34 are connected.
  • the two nozzles 30 and 31 are located at the end of a common distribution line 32; the slot nozzle 30 is arranged and directed so that it places a vertical air curtain between the thread scissors 33 and the weft mechanism 34.
  • the air flow emerging from the inclined air outlet nozzle 31 is directed primarily at the guides 43 of the projectile 42 and the thread transfer, while the air outlet 1 with its periodically deflected air jet Thread tensioner 44, thread brake 45 and weft spool 46 handed over.
  • the air curtain is bounded against the fabric 47 by a cover plate 48 which is open at the bottom; Blowing off the projectile lubrication 49 is made possible by air of the air curtain deflected from the vertical. Blowing off the projectile lubrication 49 can be further improved if the cover plate 48 is partially closed laterally. In the case of yarns which cause relatively little flight formation, it is also possible for the cover plate 48 to be closed or extended downward so that it forms a closed wall in which only the passage opening 50 for the projectile 42 is present. The shielding of the air curtain towards the shed 53 is improved with a cover plate 48 closed at the bottom.
  • cam plate 51 for controlling the thread scissors 3 and the centering wing 52 in front of this cam plate are shown under the cover plate 48.
  • the parts of the weft insertion mechanism that are moved in the direction of the shed 53 promote the tendency in the flying material (fluff) to move with a component in the direction of the weft thread run; in contrast, the air curtain acts as a "lock".
  • the cover plate 48 In cooperation with the cover plate 48, it shields the shed 53 and thus the fabric 47 against the flight generated in the weft mechanism 34.
  • the fibers entering the air curtain are guided downwards out of the machine.
  • the air discharge nozzle 31 and the air outlet 1 - supported by the air curtain - clean the weft mechanism 34 including thread tensioner 44 and thread brake 45, where a substantial part of the flight is created by thread transfer, thread transport and thread braking.
  • the "periodic" air outlet 1 causes moreover, d is ass from the Lucasaustragsdüse 31 blown in its area of influence air from the machine.
  • the arrangement of a number of individual elements blowing in different directions ensures that there are no "dead” corners in the entire weft insertion area and that the flight is safely transported away from this area by the blowing air.
  • the speeds and energies of the "cleaning air jets" are to be selected in the entire system so that on the one hand the flight material is transported as far as possible, but on the other hand the guidance and position of the thread are not impaired by the blowing air.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP83110111A 1983-10-11 1983-10-11 Dispositif pour nettoyer ou souffler des parties d'une machine à tisser Expired EP0137070B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP83110111A EP0137070B1 (fr) 1983-10-11 1983-10-11 Dispositif pour nettoyer ou souffler des parties d'une machine à tisser
DE8383110111T DE3380966D1 (de) 1983-10-11 1983-10-11 Vorrichtung zum reinigen bzw. ausblasen von arbeitsstellen in einer webmaschine.
US06/655,211 US4566497A (en) 1983-10-11 1984-09-27 Air discharge device for a weaving machine
JP59211200A JPS6099045A (ja) 1983-10-11 1984-10-08 織機に対する空気排出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83110111A EP0137070B1 (fr) 1983-10-11 1983-10-11 Dispositif pour nettoyer ou souffler des parties d'une machine à tisser

Publications (2)

Publication Number Publication Date
EP0137070A1 true EP0137070A1 (fr) 1985-04-17
EP0137070B1 EP0137070B1 (fr) 1989-12-13

Family

ID=8190740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110111A Expired EP0137070B1 (fr) 1983-10-11 1983-10-11 Dispositif pour nettoyer ou souffler des parties d'une machine à tisser

Country Status (4)

Country Link
US (1) US4566497A (fr)
EP (1) EP0137070B1 (fr)
JP (1) JPS6099045A (fr)
DE (1) DE3380966D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0306080A1 (fr) * 1987-09-02 1989-03-08 Picanol N.V. Dispositif de rentrage des fils de lisière pour métiers à tisser

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR65058E (fr) * 1952-11-06 1956-01-26 Continentale D Applic Tech Installation perfectionnée de filature
US2798825A (en) * 1950-12-27 1957-07-09 American Mono Rail Company Method of removing lint from textile machines
GB1124341A (en) * 1965-05-18 1968-08-21 Carrier Engineering Co Ltd Improvements in or relating to textile machines
CH475393A (fr) * 1966-08-23 1969-07-15 Parks Cramer Co Installation de nettoyage pneumatique pour enlever la charpie de rangées de métiers à tisser
CH483509A (fr) * 1966-08-23 1969-12-31 Parks Cramer Co Installation de nettoyage pneumatique de métiers à tisser
DE1919229A1 (de) * 1968-07-11 1970-03-12 Eaton Yale & Towne Verfahren und Vorrichtung zum Reinigen von Webstuehlen und anderen Textilmaschinen mittels pulsierender Luftstrahlen hoher Geschwindigkeit
DE1535894A1 (de) * 1964-05-14 1972-04-06 Parks Cramer Co Verfahren und Vorrichtung zum Reinigen von Webstuehlen
DE2712983B1 (de) * 1977-03-24 1978-05-18 Guenne Webmaschf Gmbh Reinigungsvorrichtung fuer eine Webmaschine
JPS554305Y2 (fr) * 1976-10-21 1980-01-31

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2400792A (en) * 1944-06-03 1946-05-21 Crompton & Knowles Loom Works Loom
CH473926A (de) * 1967-03-17 1969-06-15 Luwa Ag Pneumatische Reinigungseinrichtung an einer Webmaschine
SU494463A1 (ru) * 1974-01-17 1975-12-05 Московский Ордена Трудового Красного Знамени Текстильный Институт Устройство дл чистки ткацкого станка
CH624438A5 (fr) * 1977-11-07 1981-07-31 Sulzer Ag
NL7907050A (nl) * 1979-09-21 1981-03-24 Rueti Te Strake Bv Pneumatische weefmachine.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798825A (en) * 1950-12-27 1957-07-09 American Mono Rail Company Method of removing lint from textile machines
FR65058E (fr) * 1952-11-06 1956-01-26 Continentale D Applic Tech Installation perfectionnée de filature
DE1535894A1 (de) * 1964-05-14 1972-04-06 Parks Cramer Co Verfahren und Vorrichtung zum Reinigen von Webstuehlen
GB1124341A (en) * 1965-05-18 1968-08-21 Carrier Engineering Co Ltd Improvements in or relating to textile machines
CH475393A (fr) * 1966-08-23 1969-07-15 Parks Cramer Co Installation de nettoyage pneumatique pour enlever la charpie de rangées de métiers à tisser
CH483509A (fr) * 1966-08-23 1969-12-31 Parks Cramer Co Installation de nettoyage pneumatique de métiers à tisser
DE1919229A1 (de) * 1968-07-11 1970-03-12 Eaton Yale & Towne Verfahren und Vorrichtung zum Reinigen von Webstuehlen und anderen Textilmaschinen mittels pulsierender Luftstrahlen hoher Geschwindigkeit
JPS554305Y2 (fr) * 1976-10-21 1980-01-31
DE2712983B1 (de) * 1977-03-24 1978-05-18 Guenne Webmaschf Gmbh Reinigungsvorrichtung fuer eine Webmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0306080A1 (fr) * 1987-09-02 1989-03-08 Picanol N.V. Dispositif de rentrage des fils de lisière pour métiers à tisser
BE1000903A4 (nl) * 1987-09-02 1989-05-09 Picanol Nv Kanteninlagapparaat voor weefmachines.

Also Published As

Publication number Publication date
EP0137070B1 (fr) 1989-12-13
US4566497A (en) 1986-01-28
JPS6099045A (ja) 1985-06-01
DE3380966D1 (de) 1990-01-18

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