EP0071893B1 - Procédé et dispositif de nettoyage de rotors de filature - Google Patents

Procédé et dispositif de nettoyage de rotors de filature Download PDF

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Publication number
EP0071893B1
EP0071893B1 EP82106859A EP82106859A EP0071893B1 EP 0071893 B1 EP0071893 B1 EP 0071893B1 EP 82106859 A EP82106859 A EP 82106859A EP 82106859 A EP82106859 A EP 82106859A EP 0071893 B1 EP0071893 B1 EP 0071893B1
Authority
EP
European Patent Office
Prior art keywords
rotor
air
cleaning
blower head
passage
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
EP82106859A
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German (de)
English (en)
Other versions
EP0071893A3 (en
EP0071893A2 (fr
Inventor
André Lattion
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25693476&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0071893(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to AT82106859T priority Critical patent/ATE13320T1/de
Publication of EP0071893A2 publication Critical patent/EP0071893A2/fr
Publication of EP0071893A3 publication Critical patent/EP0071893A3/de
Application granted granted Critical
Publication of EP0071893B1 publication Critical patent/EP0071893B1/fr
Expired 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
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/22—Cleaning of running surfaces
    • D01H4/24—Cleaning of running surfaces in rotor spinning

Definitions

  • the present invention relates to a method for cleaning spinning rotors for open-end spinning, each rotor of which is located in a rotor housing with a rotor housing opening provided for external suction, in which method the rotor housing of the rotor to be cleaned is opened and opened by a this rotor housing mounted cleaning device is covered, and the cleaning device generates by means of a rotatable blower body at least one rotating air jet which essentially acts on the collecting groove of the rotor.
  • German Offenlegungsschrift No. 2613180 discloses an open-end spinning machine in which the means for cleaning the spinning rotor contain a combined blowing and suction device which can be moved towards the latter.
  • the suction part has a flange, which rests in the manner of a cover on the housing surrounding the spinning rotor. The cleaning is carried out by alternately blowing out and suctioning off the spinning rotor.
  • US Pat. No. 4,211,063 two air jets are shown which blow air against the collecting groove or into the interior of the rotor which is in rotation at predetermined, different angles. According to these two patents, the spinning rotors are rotating during the cleaning process. This means that the impurities accumulated in the collecting groove of the rotor adhere relatively firmly as a result of the centrifugal force. This makes it difficult to get proper cleaning.
  • German Offenlegungsschrift No. 2648066 shows a method in which a rotating cleaning brush is immersed in the rotating rotor in order to carry out the rotor cleaning and comes into contact with its inner surface and in particular also with the collecting groove.
  • a flexible probe is provided as a mechanical cleaning element for entering the spinning rotor to be cleaned.
  • the relatively strong adhesion of the impurities due to the centrifugal force plays a subordinate role.
  • there is a risk that the inner wall of the rotor will be scratched when such solid cleaning agents are used. It should also be added that this danger also exists when using scrapers. This affects the uniformity of the fibers to be spun collected in the collecting groove of the rotor. Fibers and thread remnants can also get caught on the brushes or wind up on them, reducing their effectiveness.
  • the wear of brushes is relatively high.
  • the invention also relates to a cleaning device for carrying out the method, which comprises a cleaning cover which can be placed on the rotor housing of the rotor to be cleaned and the rotatable blow head, the axis of rotation of which essentially coincides with that of the rotor, and which is characterized in that a cleaning cap is passed through the cleaning cover Suction channel is provided that the blow head parallel to its axis of rotation from its working position, in which its end facing the rotor is located near the free edge of the rotor and with its free edge forms the round gap, in a second working position, in which the blow head is immersed in the interior of the rotor, is movable, and that it has at least one cleaning duct which serves to generate an air jet and which is connected to a compressed air line which is used to selectively supply compressed air to the cleaning duct.
  • the thorough cleaning resulting from this invention is essentially due to the fact that the fibrous impurities accumulated in the collecting groove are transported away by the suction process which occurs first and then the relatively strongly adhering impurities consisting of fine dust particles through a sharp, d. H. the shortest possible jet should be blown away. In this way, a cleaning process that is specific and effective for each type is provided for both types of impurities.
  • a spinning rotor 11 is shown, which is rotatably supported by an axle bearing 12.
  • the spinning rotor 11 is located in the interior of a rotor housing 13.
  • the latter is provided with a rotor housing opening 14, which is provided in normal operation for the external suction used to feed the sliver.
  • the rotor housing 13 is normally closed with a cover during operation. However, this cover is not shown in the drawing and a cleaning device 15 is placed on the rotor housing 13 in its place.
  • the device 15 comprises a suction line 16, a cylinder 17, a blow head 18 and a cleaning cover 19. The latter can be placed on the open rotor housing 13 with a tight fit.
  • the blow head 18 is supported by a shaft 21 at one end and the shaft 21 is rotatably supported in bearings 22.
  • the axes of rotation of the rotor 11 and the shaft 21 coincide.
  • the bearings 22 are carried by a piston 23 which can be moved in the cylinder 17 in its axial direction. By means of a return spring 24, the piston 23 is directed to the left, ie. H. exposed to a bias directed against the face of the cylinder 17 facing away from the blow head 18.
  • a cleaning channel 25 for generating an air jet which ends at one end in a longitudinal bore 26 provided in the shaft 21.
  • drive channels 27 formed by air lines are provided, which serve to set the blow head 18 in rotation.
  • the channels 27 extend radially outward from the longitudinal bore 26 in opposite directions and bend at right angles to the cylindrical surface of the blow head 18 in mutually opposite directions.
  • these angled channel plate pieces 27 ′ of the drive channels 27 run approximately tangentially to their surface at their point of exit from the blow head 18.
  • the air emerging from the duct pieces 27 ′ must have at least one movement component tangential to the surface of the head 18 in order to be able to set the blow head 18 in rotation.
  • FIG. 3 of a blow head 18 in a plane perpendicular to its axis of rotation and thus also to the shaft 21 shows a possible arrangement of channels.
  • a single cleaning channel is not provided, but there are three cleaning channels 25 arranged around the longitudinal bore 26 at equal angular distances from one another, all of which essentially against the collecting groove 32 of the spinning rotor 11, which is particularly soiled by pieces of fiber and dust particles is exposed.
  • cleaning channels 33 designed as air lines can additionally be provided. These serve to give the rotor edge 34 of the rotor 11, to which fibers adhere relatively strongly, a particularly strong cleaning.
  • the cleaning channels 33 are directed towards the edge 34.
  • On the end face of the cylinder 17 facing away from the blow head 18 there is a compressed air line 29 which serves for the optional introduction of compressed air into the interior of the cylinder 17.
  • compressed air is introduced into the interior of the cylinder 17 through the compressed air line 29.
  • This causes a pressure on the piston 23, which is directed against the bias generated by the return spring 24 and is greater than this.
  • the piston 23 is moved to the right.
  • the blow head 18 is taken along so that it dips into the interior of the rotor 11, assuming the position shown in FIG. 2.
  • compressed air penetrates into the longitudinal bore 26 and from there into the cleaning channel 25 or into the channels 25 and into the drive channels 27 with the channel sections 27 ′.
  • the air flowing through the channels 27, 27 'sets the blower body 18 in rotation and the air flowing through the channels blows the last remnants of the in the spinning rotor 11 or the 6 collecting groove 32 remaining impurities out of this.
  • These are primarily fine dust particles adhering relatively firmly in the collecting groove 32.
  • a strong and sharp air jet must be formed through the channels 25. These dust particles are also carried away by the suction channel 16.
  • the drive channels 27 with the sections 27 ′ are so far against the free end of the blow body 18 (to the right in FIG. 2) that they also blow into the interior of the rotor 11, in particular into the collecting groove 32 and thus also contribute to its cleaning. In this case, they serve both to drive the blow head 18 and to clean the collecting groove 32, but can also contribute to cleaning the rotor edge 34.
  • the air jet is sharper the shorter it is.
  • the air outlet points of the channels 25 are located on the lateral surface of the blow head 18, which in the example shown is of essentially circular cylindrical shape. Therefore, if the diameter of the lateral surface is chosen to be as large as possible so that the space between it and the rotor edge 34 is small, the air outlet points are brought as close to the parts of the rotor 11 to be cleaned, in particular to the collecting groove 32, as this is practically possible.
  • a further improvement in the cleaning of the rotor 11 is obtained if the strength of the rotating air jet is varied, in particular if it is formed by successive air pulses.
  • three successive blowing pulses are generated for cleaning the rotor 11.
  • the duration of these blowing pulses or the duration of the generation of each of these pulses is between 0.3 and 1.5 seconds and the pauses between the blowing pulses are between 0.2 and 0.4 seconds.
  • a pulsating air jet has a stronger cleaning power than an air jet of the same size but of constant strength.
  • a pulsating air jet in the example shown in FIGS. 1 and 2 also causes a reciprocation of the piston 23 in the cylinder 17 and thus a change in the immersion depth of the blow head 18 in the rotor 11.
  • This change in the immersion depth causes, in addition to the effect of pulsating air jet, a further, additional improvement in cleaning, so that in the embodiment of FIGS. 1 and 2, the pulsating air jet is of particular advantage.
  • a pulsating air jet can be generated, for example, by means of a controllable valve 36 which is installed in the air pressure line 29 and is opened and closed again in accordance with the desired time intervals.
  • a bore is provided which extends from the atmosphere to the chamber containing the blow head 18.
  • the bore is dimensioned so that it allows a steady flow of air into the chamber under the influence of the suction applied via the channel 16. The air flow around the die is therefore directed outward from the chamber, reducing the tendency for dirt to be drawn into the chamber by the rotor during die movements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (14)

1. Procédé pour nettoyer des rotors de filage pour le filage à bout ouvert, dans lequel chaque rotor se trouve dans un carter de rotor qui possède chacun une ouverture de carte prévue pour l'aspiration secondaire, procédé dans lequel le carter de rotor du rotor à nettoyer est ouvert, et qu'un dispositif de nettoyage recouvre l'ouverture de ce carter de rotor et que le dispositif de nettoyage produit au moins un courant d'air en rotation lequel balaye principalement la rainure collectrice du rotor, caractérisé par le fait que, avant la production du courant d'air, le rotor (11) est mis à l'arrêt, que, avec l'application du dispositif de nettoyage (15) sur le carter de rotor (13), il se forme une fente annulaire (35) comprise entre deux plans parallèles, constitués d'un côté par la face frontale d'une tête de soufflage (18), dirigée vers le rotor, et de l'autre côté par le bord libre (34) du rotor (11), fente par laquelle, par un processus d'aspiration, de l'air est aspiré depuis l'ouverture (14) du carter de rotor, et passe à travers le volume intérieur du rotor (11), et que par la suite la tête de soufflage (18) pénètre dans le volume intérieur du rotor (11) et est mise en rotation et produit le courant d'air en rotation pendant que le processus d'aspiration est maintenu.
2. Procédé selon revendication 1, caractérisé par le fait que d'autres endroits du rotor (11) qui nécessitent un nettoyage spécialement énergique sont balayés par un courant d'air.
3. Procédé selon revendication 1 ou 2, caractérisé par le fait que le courant d'air en rotation est varié dans sa puissance.
4. Procédé selon une des revendications précédentes, caractérisé par le fait que le courant d'air en rotation est formé par des impulsions d'air se suivant les unes après les autres.
5. Procédé selon revendication 4, caractérisé par le fait que le courant d'air en rotation est formé par trois impulsions d'air qui sont produites pendant des laps de temps d'une durée de chacune de 0,3 à 1,5 secondes, et que des pauses de 0,2 à 0,4 secondes sont prévues entre ces laps de temps.
6. Dispositif de nettoyage pour l'exécution du procédé selon les revendications 1 et 2 qui comprend un couvercle de nettoyage qui s'assied sur le carter de rotor du rotor à nettoyer, et la tête de soufflage rotative dont l'axe de rotation coïncide principalement avec celui du rotor, caractérisé par le fait qu'un canal d'aspiration (16) traversant le couvercle de nettoyage (19) est prévu, que la tête de soufflage (18) est mise dans un mouvement parallèle à son axe de rotation, d'une première position de travail dans laquelle sa face frontale, opposée au rotor (11), se trouve dans les alentours du bord libre (34) du rotor (11) et forme avec ce bord libre (34) la fente annulaire (35), dans une deuxième position de travail dans laquelle la tête de soufflage (18) pénètre dans le volume intérieur du rotor (11), et qu'elle possède au moins un canal de nettoyage (25) servant à la production d'un courant d'air, canal qui est en liaison avec une conduite d'air comprimé (29) qui sert à l'alimentation selon le choix d'air comprimé vers le canal de nettoyage (25).
7. Dispositif selon revendication 6, caractérisé par le fait que celui-ci comprend un cylindre (17) et un arbre rotatif (21), disposé coaxialement avec ce cylindre (17), arbre qui porte sur l'une de ses extrémités la tête de soufflage (18) et qui est maintenu dans un palier de rotation (22) qui est porté par un piston (23) mobile à l'intérieur du cylindre (17) dans le sens longitudinal de ce dernier et mobile avec celui-ci, procédé dans lequel la tête de soufflage (18) peut être mise en mouvement à l'intérieur du rotor (11) depuis la position qui forme une fente (35) avec le bord libre (34) du rotor.
8. Dispositif selon revendication 7, caractérisé par le fait que l'arbre (21) possède un trou central allongé (26) qui débouche dans le volume intérieur du cylindre avec son extrémité opposée à la tête de soufflage (18), que la conduite d'air comprimé (29) débouche aussi dans le volume intérieur du cylindre du côté frontal du cylindre (17) opposé à la tête de soufflage (18), et que le canal de nettoyage (25) débouche avec ses extrémités dans le trou allongé (26).
9. Dispositif selon une des revendications 6 à 8, caractérisé par le fait que l'embouchure du canal d'aspiration (16) dans le carter de rotor (13) et l'ouverture (14) du carter de rotor, par rapport au rotor (11), sont disposées diamétralement et opposées l'une par rapport à l'autre.
10. Dispositif selon une des revendications 6 à 9, caractérisé par le fait que le point de sortie du canal de nettoyage (25) se trouve à un endroit de la surface extérieure de la tête de soufflage (18) qui se trouve relativement près de la rainure collectrice (32), lorsque la tête de soufflage (18) pénètre dans le volume intérieur du rotor (11).
11. Dispositif selon une des revendications 7 à 10, caractérisé par le fait que le piston (23) est pré-tendu élastiquement contre le côté frontal du cylindre (17) qui est opposé à la tête de soufflage (18) et que la pression de l'air amené par la conduite d'air comprimé (29) sur le piston (23) est plus grande que la pré-tension agissant sur lui.
12. Dispositif selon une des revendications 7 à 11, caractérisé par le fait que, pour l'obtention d'un mouvement rotatif de la tête de soufflage (18), celle-ci possède au moins un canal de commande (27) formé comme canal d'air qui est en liaison avec le trou allongé (26) et dans lequel l'air sortant du canal de commande (27), ou au moins une composante de mouvement de celui-ci par rapport au trajet circulaire suivi par le point de sortie d'air lors du mouvement de rotation, est orienté(e) tangentiellement.
13. Dispositif selon revendication 12, caractérisé par le fait que le courant d'air formé par le canal de commande (27) est dirigé, lors de sa sortie de la tête de soufflage (18), vers des endroits à nettoyer, spécialement vers la rainure collectrice (32).
14. Dispositif selon revendication 11, caractérisé par le fait que, dans la conduite d'air comprimé (29), se trouve une vanne réglable, qui sert à la régulation de l'air qui traverse cette conduite (29).
EP82106859A 1981-08-11 1982-07-29 Procédé et dispositif de nettoyage de rotors de filature Expired EP0071893B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82106859T ATE13320T1 (de) 1981-08-11 1982-07-29 Verfahren zum reinigen von spinnrotoren und einrichtung zu dessen durchfuehrung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH5150/81 1981-08-11
CH515081 1981-08-11
CH3631/82 1982-06-11
CH363182 1982-06-11

Publications (3)

Publication Number Publication Date
EP0071893A2 EP0071893A2 (fr) 1983-02-16
EP0071893A3 EP0071893A3 (en) 1983-10-12
EP0071893B1 true EP0071893B1 (fr) 1985-05-15

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ID=25693476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106859A Expired EP0071893B1 (fr) 1981-08-11 1982-07-29 Procédé et dispositif de nettoyage de rotors de filature

Country Status (4)

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US (1) US4403472A (fr)
EP (1) EP0071893B1 (fr)
CS (1) CS252810B2 (fr)
DE (1) DE3263534D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008037000A1 (de) 2008-08-07 2010-02-11 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Reinigen eines Spinnrotors einer Offenend-Spinneinheit
EP3276056A1 (fr) * 2016-07-29 2018-01-31 Maschinenfabrik Rieter AG Dispositif de nettoyage destiné à nettoyer un disque d'un rotor de filage
DE102016009275A1 (de) * 2016-07-29 2018-02-01 Saurer Germany Gmbh & Co. Kg Reinigungsvorrichtung für einen Spinnrotor

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198516B1 (fr) 1983-05-20 1990-04-18 Maschinenfabrik Rieter Ag Dispositif de rattachement pour une machine de filature à bouts libérés
CS240753B1 (en) * 1983-06-13 1986-02-13 Oldrich Kase Spinning unit's rotor cleaning device
DE3929892C2 (de) * 1989-09-08 1995-01-05 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung
DE4131666C2 (de) * 1991-09-23 1996-02-29 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zum Reinigen eines Offenend-Spinnrotors
CZ281244B6 (cs) * 1994-08-03 1996-07-17 Maschinenfabrik Rieter Ag Způsob čištění rotoru rotorového dopřádacího stroje a zařízení k provádění způsobu
DE10314936A1 (de) * 2002-08-03 2004-02-12 Rieter Ingolstadt Spinnereimaschinenbau Ag Reinigungsvorrichtung zur Reinigung eines Spinnrotors
DE102012100674A1 (de) * 2012-01-27 2013-08-01 Maschinenfabrik Rieter Ag Luftspinnmaschine mit einem Reinigungsorgan sowie Verfahren zum Reinigen der Wirbelkammer einer Luftspinnmaschine
DE102018103876A1 (de) * 2018-02-21 2019-08-22 Maschinenfabrik Rieter Ag Verfahren zum Betreiben einer Spinnvorrichtung einer Rotorspinnmaschine und Spinnvorrichtung einer Rotorspinnmaschine
CN114635205A (zh) * 2022-03-21 2022-06-17 浙江奥佳纺织有限公司 一种气流纺纺杯自动除尘装置及工作方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2327127A1 (de) * 1973-05-28 1974-12-19 Zinser Textilmaschinen Gmbh Vorrichtung zum reinigen von spinnrotoren an oe-spinnmaschinen
DE2410269A1 (de) * 1974-02-28 1975-09-11 Fritz Stahlecker Vorrichtung zum reinigen eines spinnrotors
CH594078A5 (fr) * 1975-06-03 1977-12-30 Nuova San Giorgio Spa
CH606534A5 (fr) * 1975-11-24 1978-11-15 Nuova San Giorgio Spa
DE2613180C2 (de) * 1976-03-27 1986-04-30 Stahlecker, Fritz, 7347 Bad Überkingen Offenend-Spinnmaschine mit einer Vielzahl von Spinnaggregaten und mit wenigstens einer Wartungseinrichtung
DE2648066C2 (de) * 1976-10-23 1986-09-04 Fritz 7347 Bad Überkingen Stahlecker Offenend-Spinnmaschine mit einer verfahrbaren Wartungsvorrichtung
DE2735311C2 (de) * 1977-08-05 1989-08-10 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Vorrichtung zur Reinigung von Spinnrotoren in Offenend-Spinnvorrichtungen
DE2811960C2 (de) * 1978-03-18 1984-05-17 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Vorrichtung zum individuellen Anspinnen einzelner Spinnvorrichtung einer Offenend-Spinnmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008037000A1 (de) 2008-08-07 2010-02-11 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Reinigen eines Spinnrotors einer Offenend-Spinneinheit
EP3276056A1 (fr) * 2016-07-29 2018-01-31 Maschinenfabrik Rieter AG Dispositif de nettoyage destiné à nettoyer un disque d'un rotor de filage
DE102016009275A1 (de) * 2016-07-29 2018-02-01 Saurer Germany Gmbh & Co. Kg Reinigungsvorrichtung für einen Spinnrotor
DE102016114082A1 (de) * 2016-07-29 2018-02-01 Maschinenfabrik Rieter Ag Reinigungsvorrichtung zur Reinigung eines Rotortellers eines Spinnrotors
US11035057B2 (en) 2016-07-29 2021-06-15 Maschinenfabrik Rieter Ag Cleaning device for cleaning a rotor disk of a spinning rotor

Also Published As

Publication number Publication date
EP0071893A3 (en) 1983-10-12
CS252810B2 (en) 1987-10-15
DE3263534D1 (en) 1985-06-20
US4403472A (en) 1983-09-13
EP0071893A2 (fr) 1983-02-16

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