EP0137070B1 - 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
EP0137070B1
EP0137070B1 EP83110111A EP83110111A EP0137070B1 EP 0137070 B1 EP0137070 B1 EP 0137070B1 EP 83110111 A EP83110111 A EP 83110111A EP 83110111 A EP83110111 A EP 83110111A EP 0137070 B1 EP0137070 B1 EP 0137070B1
Authority
EP
European Patent Office
Prior art keywords
air
air outlet
circular member
slot
nozzle
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.)
Expired
Application number
EP83110111A
Other languages
German (de)
English (en)
Other versions
EP0137070A1 (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
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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Priority to DE8383110111T priority Critical patent/DE3380966D1/de
Priority to EP83110111A priority patent/EP0137070B1/fr
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 contains at least one line pressurized with compressed air, which leads to at least one slit-like air outlet which is arranged above the workplaces to be cleaned and periodically blows the air out over the workplaces .
  • 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 carried by the weft. Flight entered into the tissue reduces the tissue quality to an undesirable extent.
  • FR-PS 65 058 (1st addition to 984 097) cleaning devices for spinning machines are shown and described. With these devices, the machines are periodically blown off zone by zone in the longitudinal direction. In one of these constructions, the blow-off is carried out by air jets directed straight downward, that is to say similarly to the JP patent right mentioned above. In another of the devices there, reciprocating air jets are used for cleaning, with which, as already described, it is not possible to remove the flight from the machine in one direction.
  • 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 has a continuously rotating round body which runs parallel to the air outlet which is stationary in the room and is arranged transversely to the thread running direction, and in that, over an angular range in the circumferential direction of the rotary body, a one-sided periodic deflection for the from a narrow slit-like Air outlet nozzle is provided.
  • the periodically one-sided deflected air jets "sweep" the fiber flight away to one side like a broom, whereas, in contrast to devices with stationary air jets, no dead spaces for flight accumulations can be formed.
  • the flight is transported away in a defined direction without any special purpose It is necessary to control the air supply, and a drive for a continuously rotating round body is simpler than a swivel mechanism.
  • the air outlet in which the air outlet does not contain any moving parts, can be directed rigidly towards one end of the work area 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 particularly advantageously consist of circular cylinder sectors with the same radii that are displaced with respect to one another along a diameter, expediently having two to four steps on the circumference of the step body.
  • the round body is arranged as a hollow cylinder with the slot-like blow-out nozzles distributed around the circumference in a fixed housing concentrically surrounding it, which closes off the pressure line and for the air jet extends over an angular range of its circumference, whereby the angular range of the blow-out nozzles is narrow relative to that of the air outlet in the fixed housing.
  • the "reversal" is also permissible, in which the round body as a hollow cylinder with narrow, slit-like blow-out nozzles distributed around the circumference concentrically and tightly surrounds a stationary housing that closes the pressure line and has an air outlet for the air jet that extends over an angular range of its circumference, whereby the angular range of the blow-out nozzles is narrow relative to that of the air outlet in the fixed housing.
  • the round body can be driven either by a motor or by the air to be deflected itself, the speed of the round body being controlled by an adjustable friction brake to limit the number of deflections per minute - advantageously 1-60, preferably up to 30, deflections / min can.
  • the air outlet of the device can be installed in a whole system of cleaning nozzles;
  • the above-mentioned system which is the subject of EP application 0 137 069, can be completed by a slit nozzle which is arranged downstream of the air outlet in the weft thread direction and which places a vertical air curtain between thread scissors and weft mechanism.
  • a cover plate delimits the air curtain on the weaving side on the thread inlet side of the thread scissors.
  • a further improvement can be achieved if an air blow-out nozzle is arranged in the weft thread running direction between the air outlet and the slot nozzle, the air jet of which is directed obliquely opposite the weft thread path from above onto the weft area.
  • 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.
  • part of the round body 5 is designed as a gear-like air turbine 10, which represents a self-drive for rotating 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 is adjustable, which is not expressly shown.
  • the round body is a Drucklei device 12 connected hollow cylinder 13 which, driven by the shaft 17 by the air to be deflected or by an electric motor, can rotate. 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, does 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. H. 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, passes thread tensioner 44, thread brake 45 and weft spool 46.
  • the air curtain is bounded against the fabric 47 by a cover plate 48 which is open at the bottom; air of the air curtain deflected from the vertical enables the projectile lubrication, not shown, to be blown off. Blowing off the projectile lubrication can be further improved if the cover plate 48 is partially closed on the side. 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 which are moved in the direction of the shed 53 promote the tendency for the flying material (fluff) to move with a component in the direction of the weft thread run; on the other hand, 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 “sweeping” air outlet 1 also has the effect that flight blown from the air discharge nozzle 31 into its area of action is removed 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” in the entire system must be selected 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 blown air.

Claims (12)

1. Dispositif respectivement destiné au nettoyage ou au décrassage pneumatique de postes de travail dans un métier à tisser, ce dispositif comprenant au moins une conduite qui est alimentée en air comprimé et même au moins à une sortie d'air en forme de fente, disposée au-dessus des postes de travail devant être nettoyés, et projetant périodiquement de l'air sur ces postes de travail, caractérisé par le fait que la sortie d'air (1, 16, 26) présente un corps rond (6, 13, 23) tournant en continu, qui s'étend parallèlement à la sortie d'air (1, 16, 26) fixe dans l'espace et disposée transversalement par rapport au sens de défilement du fil ; et par le fait qu'il est par ailleurs prévu sur une plage angulaire, dans le sens périphérique du corps rond (6, 13, 23), une déviation périodique d'un côté pour le courant d'air projeté sortant d'une buse soufflante étroite (3, 14, 23), du type fente.
2. Dispositif selon la revendication 1, caractérisé par le fait que la sortie d'air (1) est dirigée rigidement vers une extrémité des postes de travail devant être nettoyés et le corps rond (6) est disposé à côté de l'orifice de sortie (3), avec décalage dans le sens de déviation, en vue d'engendrer un effet Coanda.
3. Dispositif selon la revendication 2, caractérisé par le fait que le corps rond (6) est réalisé sous la forme d'un corps étagé, comprenant des secteurs cylindriques droits de rayons identiques, mutuellement décalés le long d'un diamètre (8).
4. Dispositif selon la revendication 1, caractérisé par le fait que le corps rond (6) est automatiquement entraîné par l'air devant être dévié.
5. Dispositif selon la revendication 4, caractérisé par un frein à frottement (11) réglable, qui freine le corps rond (6) entraîné automatiquement.
6. Dispositif selon la revendication 1, caractérisé par le fait que le corps rond (6) est logé, en tant que cylindre creux (13) muni de buses soufflantes (14) du type fente, réparties sur le pourtour, dans un boîtier fixe (15) qui l'entoure concentriquement, obture la conduite de pression (12) et possède, pour le courant d'air projeté, une sortie d'air (16) s'étendant sur une plage angulaire de son pourtour, la plage angulaire des buses soufflantes (14) étant étroite comparativement à celle de la sortie d'air (16) dans le boîtier fixe (15).
7. Dispositif selon la revendication 1, caractérisé par le fait que le corps rond entoure étroitement et concentriquement, en tant que cylindre creux (23) muni de buses soufflantes (24) du type fente, réparties sur le pourtour, un boîtier fixe (25) qui obture la conduite de pression (22) et possède, pour le courant d'air projeté, une sortie d'air (26) s'étendant sur une plage angulaire de son pourtour, la plage angulaire des buses soufflantes (24) étant étroite comparativement à celle de la sortie d'air (26) dans le boîtier fixe (25).
8. Dispositif selon la revendication 1, caractérisé par le fait que la fréquence de déviations du courant d'air projeté, influencé par le corps rond (6, 13, 23) et sortant par la buse soufflante (3, 14, 24) du type fente, est de 1 à 60 par minute.
9. Métier à tisser présentant un dispositif selon l'une des revendications précédentes, caractérisé par le fait que ce dispositif sert au nettoyage d'une partie de la zone d'insertion de la trame dudit métier à tisser.
10. Métier à tisser selon la revendication 9, caractérisé par le fait qu'une buse fendue (30), s'étendant transversalement par rapport à la direction du fil de trame et située en aval de la sortie d'air (1, 16, 26) du dispositif, dans le sens du défilement de ce fil de trame, interpose un rideau d'air vertical entre le coupe-fil (33) et le mécanisme (34) d'insertion des duites.
11. Métier à tisser selon la revendication 10, caractérisé par le fait que, côté pénétration du fil dans le coupe-fil (33), une plaque de recouvrement (48) délimite le rideau d'air côté battant.
12. Métier à tisser selon la revendication 10 ou 11, caractérisé par le fait qu'une buse (31) d'insufflation d'air est implantée dans le sens de défilement du fil de trame, entre la sortie d'air (1, 16, 26) et la buse fendue (30), buse d'insufflation dont le courant d'air projeté, dirigé à l'oblique en sens inverse du défilement du fil de trame, est orienté de haut en bas sur le mécanisme (34) d'insertion des duites.
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
DE8383110111T DE3380966D1 (de) 1983-10-11 1983-10-11 Vorrichtung zum reinigen bzw. ausblasen von arbeitsstellen in einer webmaschine.
EP83110111A EP0137070B1 (fr) 1983-10-11 1983-10-11 Dispositif pour nettoyer ou souffler des parties d'une machine à tisser
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 EP0137070A1 (fr) 1985-04-17
EP0137070B1 true 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)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1000903A4 (nl) * 1987-09-02 1989-05-09 Picanol Nv Kanteninlagapparaat voor weefmachines.

Family Cites Families (14)

* 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
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
US3304570A (en) * 1964-05-14 1967-02-21 Parks Cramer Co Traveling cleaner for looms
GB1124341A (en) * 1965-05-18 1968-08-21 Carrier Engineering Co Ltd Improvements in or relating to textile machines
US3422481A (en) * 1966-08-23 1969-01-21 Parks Cramer Co Crane mounted loom cleaner with synchronized oscillation
US3400423A (en) * 1966-08-23 1968-09-10 Parks Cramer Co Air outlet suspension system for textile traveling cleaners
CH473926A (de) * 1967-03-17 1969-06-15 Luwa Ag Pneumatische Reinigungseinrichtung an einer Webmaschine
US3571840A (en) * 1968-07-11 1971-03-23 Eaton Yale & Towne Cleaning apparatus for looms
SU494463A1 (ru) * 1974-01-17 1975-12-05 Московский Ордена Трудового Красного Знамени Текстильный Институт Устройство дл чистки ткацкого станка
JPS554305Y2 (fr) * 1976-10-21 1980-01-31
DE2712983C2 (de) * 1977-03-24 1979-01-11 Guenne Webmaschinenfabrik Gmbh & Co Kg, 4773 Moehnesee Reinigungsvorrichtung für eine Webmaschine
CH624438A5 (fr) * 1977-11-07 1981-07-31 Sulzer Ag
NL7907050A (nl) * 1979-09-21 1981-03-24 Rueti Te Strake Bv Pneumatische weefmachine.

Also Published As

Publication number Publication date
DE3380966D1 (de) 1990-01-18
EP0137070A1 (fr) 1985-04-17
JPS6099045A (ja) 1985-06-01
US4566497A (en) 1986-01-28

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