EP4029978B1 - Structure autonettoyante de dispositif de filature à rotor, machine textile et procédé de fonctionnement autonettoyant - Google Patents

Structure autonettoyante de dispositif de filature à rotor, machine textile et procédé de fonctionnement autonettoyant Download PDF

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Publication number
EP4029978B1
EP4029978B1 EP22150970.6A EP22150970A EP4029978B1 EP 4029978 B1 EP4029978 B1 EP 4029978B1 EP 22150970 A EP22150970 A EP 22150970A EP 4029978 B1 EP4029978 B1 EP 4029978B1
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EP
European Patent Office
Prior art keywords
rotor
cleaning
cleaning rod
self
condensing groove
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
EP22150970.6A
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German (de)
English (en)
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EP4029978A1 (fr
Inventor
Alexander Kistner
Hongmin Qu
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.)
Saurer Jiangsu Textile Machinery Co Ltd
Original Assignee
Saurer Jiangsu Textile Machinery Co Ltd
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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
    • 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
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor

Definitions

  • the invention relates to the technical field of textile equipment, and in particular to a rotor spinning device self-cleaning structure, a textile machinery and a self-cleaning operation method.
  • Rotor spinning is one of the open-end spinning methods. Rotor spinning is referred to as rotor spinning because of the use of rotor-condensation single fibers. Rotor spinning has a high spinning speed, large winding capacity, and a good ability to spinning low-grade cotton and waste cotton, and labor-intensive environment is, wherein the rotor-spinning device is an important part to realize such process.
  • a fiber strip is fed and loosened into a single fiber by a rotary carding roller coated with a card clothing, to be transported with the air flow to the inner wall of the high-speed rotating rotor, to form a yarn tail in the condensing groove, and simultaneously to be twisted into yarn to be led out, to be directly wound into a bobbin.
  • the main difference between rotor spinning and other open-end spinning methods is the mechanism and function of condensing and twisting.
  • the fibers Due to the high surface velocity of the inner wall of the rotor, the fibers are arranged in parallel along the circumference of the inner wall, and under the action of centrifugal force, they slide into the condensing groove at the maximum diameter of the inner wall, where they are overlapped and formed into annular fiber strands, which is the process of condensation of fibers.
  • the fibers are circularly arranged in a circumferential direction to form a wound fiber of the air-flow yarn.
  • US 5,609,015 A refers to an apparatus for cleaning the rotor, wherein that apparatus comprises a cleaning device having a scraper to be positioned in a predetermined position in the fiber collecting groove of the rotor.
  • the scraper is made by a flexible scraper strip which is stored in a reservoir and frictionally engaged by a displacement device causing the scraper strip to automatically extend from the reservoir an optimal length independently of its abrasion into the rotor.
  • DE 100 231484A1 describes an open-end spinning device wherein a rotor-spinning machine is cleaned by means of a removable maintenance unit.
  • the maintenance unit comprises a cleaning device including a cleaning head including a mechanical cleaning element, such as a scraper, or including a compressed air nozzle.
  • the maintenance unit In order to clean the spinning rotor, the maintenance unit is positioned in front of the relevant spinning equipment, the rotor of the spinning device is opened, and the cleaning head is pushed towards the spinning rotor and then cleans the rotor.
  • the cleaning device in the prior art must open the rotor of the spinning device to interrupt the spinning, and cannot perform the cleaning under the working condition, which affects the spinning efficiency.
  • the invention aims to provide a rotor spinning device self-cleaning structure in a textile machinery as well as a self-cleaning operation method, which can realize the cleaning of the rotor without stopping the machine and has a good cleaning effect, and at the same time can ensure the production efficiency of the textile machinery with the self-cleaning structure and improve the production benefit.
  • the invention provides a rotor spinning device self-cleaning structure having the features of claim 1.
  • the driving device automatically adjusts the length of the cleaning rod that extends into the condensing groove of the rotor as needed.
  • the guide channel includes a first end and a second end in the entry direction of the cleaning rod, the second end is provided with a guiding portion that has a guiding arc surface.
  • the cleaning rod enters from the first end and arrives at the second end, it bends under the guidance of the guiding arc surface and moves towards the condensing groove.
  • the invention further comprises a control device for controlling the driving device and a detection device for detecting the amount of residue to be cleaned in the condensing groove of the rotor.
  • the control device is designed to control the frequency at which the cleaning rod enters the rotor according to the detection result of the detection device.
  • the invention further comprises a control device for controlling the driving device.
  • the control device is preset with a preset frequency for cleaning the rotor.
  • the control device is designed to control the frequency at which the cleaning rod enters the rotor according to the preset frequency.
  • the present application further provides a textile machinery comprising a number of rows of stations arranged side by side, each of the stations comprising a rotor spinning device self-cleaning structure as described above.
  • the present application further provides a rotor self-cleaning operation method, comprising a rotor spinning device self-cleaning structure as described above, when the rotor is to be cleaned, the driving device drives the cleaning rod to move from an initial operating position to a cleaning operating position in which the cleaning rod is in contact with the condensing groove of the rotor in the rotating operating state.
  • the cleaning rod is moved away from the rotor cleaning operating position and returned to the initial operating position.
  • the rotor spinning device self-cleaning structure and the textile machinery as well as the self-cleaning operation method provided by the invention can achieve an efficient cleaning of the condensing groove of the rotor of the rotor spinning device without opening the rotor in the state that the machine is not stopped, can ensure the spinning quality and meanwhile effectively guarantee the production efficiency of the textile machinery having the self-cleaning mechanism described above, such that the production efficiency is always maintained at a high level.
  • the embodiment describes a rotor spinning device self-cleaning structure, as shown in FIGs. 1 and 2 , comprising a spinning device which includes a cup insert 2 for conveying cotton fibers, and a rotor 1.
  • the rotor 1 includes a condensing groove for forming a yarn, and also includes a cleaning rod 4 which can extend into and clean the condensing groove of the rotor 1 when the rotor 1 is in an operating state, and a driving device 5 for driving the cleaning rod 4 to operate.
  • the driving device 5 can automatically adjusts the length of the cleaning rod that extends into the condensing groove of the rotor as actually needed.
  • the cup insert 2 is provided with a guide channel 3 for the cleaning rod 4 to extend into the rotor 1.
  • the guide channel 3 includes an arc-shaped segment for guiding the cleaning rod 4 to the condensing groove.
  • the guide channel 3 includes a first end and a second end in the entry direction of the cleaning rod 4.
  • the second end is provided with a guiding portion that has a guiding arc surface.
  • the cleaning rod 4 is made of a flexible material.
  • the control of the cleaning of the rotor 1 by the cleaning rod 4 can be performed in accordance with the yarn conditions in the condensing groove, or the cleaning frequency can also be controlled by a preset periodic time, as follows:
  • the self-cleaning mechanism is provided with a control device and a detection device.
  • the control device is used for controlling the operation of the driving device 5.
  • the detection device is used for detecting the amount of residue to be cleaned in the condensing groove of the rotor 1.
  • the residue to be cleaned refers to dust, impurities and short fibers, etc.
  • the control device controls the frequency at which the cleaning rod 4 enters the rotor 1 according to the detection result of the detection device.
  • the amount of residue to be cleaned in the condensing groove of the rotor 1 is monitored in real time.
  • the cleanliness of the condensing groove is not high and there are abnormal conditions, there is an abnormal change in the amount of residue to be cleaned in the condensing groove, e.g., it is detected that the accumulated matter to be cleaned in the condensing groove exceeds a certain value. In this way, the condensing groove can be cleaned timely and efficiently.
  • the self-cleaning mechanism is provided with a control device.
  • the control device is preset with a preset frequency for cleaning the rotor 1. That is, the control device controls the frequency at which the cleaning rod 4 enters the rotor 1 according to the preset frequency. For example, if the rotor 1 is set to be cleaned once every ten minutes, then the control device controls the cleaning rod 4 to enter the rotor 1 every ten minutes, to achieve a timed and efficient cleaning of the rotor 1.
  • the embodiment provides a textile machinery comprising a number of rows of stations arranged side by side, each of the stations comprising a rotor spinning device self-cleaning structure as described in the embodiment 1.
  • the textile machinery can achieve an efficient cleaning of the rotor 1 in the rotor spinning device without opening the rotor and without the machinery being stopped. This can ensure the spinning quality and meanwhile effectively guarantee the production efficiency of the textile machinery having the self-cleaning mechanism described above, such that the production efficiency is always maintained at a high level.
  • the embodiment provides a rotor self-cleaning operation method, comprising a rotor spinning device self-cleaning structure as described in the embodiment 1, wherein the rotor spinning device self-cleaning structure includes a spinning device that includes a cup insert 2 for conveying cotton fibers, and a rotor 1.
  • the rotor 1 includes a condensing groove for forming a yarn, and includes a cleaning rod 4 which can extend into and clean the condensing groove of the rotor 1 when the rotor 1 is in an operating state, and a driving device 5 for driving the cleaning rod 4 to operate.
  • the driving device 5 can automatically adjusts the length of the cleaning rod that extends into the condensing groove of the rotor as actually needed.
  • the driving device 5 drives the cleaning rod 4 to move from an initial operating position to a cleaning operating position in which the cleaning rod 4 is in contact with the condensing groove of the rotor 1 in the rotating operating state. After the cleaning rod 4 completes the cleaning of the rotor 1, the cleaning rod 4 is moved away from the rotor 1 from the cleaning operating position and returned to the initial operating position.
  • the cleaning rod 4 is controlled to extend into the guide channel 3 in the rotor 1.
  • the guide channel 3 includes a first end and a second end in the entry direction of the cleaning rod 4, and the second end is provided with a guiding portion.
  • the guiding portion in the embodiment has a guiding arc surface.
  • the method controls the cleaning rod 4 to enter from the first end and arrive at the second end.
  • the cleaning rod 4, which is made of a flexible material, bends under the guidance of the guiding arc surface and moves towards the condensing groove.
  • the cleaning rod 4 can be quickly and accurately guided to and in contact with the inner wall of the condensing groove, thereby quickly achieving effective cleaning of the condensing groove, shortening the cleaning beat, and improving the cleaning efficiency.
  • the guiding portion in other embodiments may also be a guide groove, a guide hole, or the like, as long as that the cleaning rod 4 is guided to the inner wall of the condensing groove for efficient cleaning of the condensing groove via the rotating of the rotor, which are within the scope of protection of the invention.
  • the rotor self-cleaning operation method provided in the embodiment realizes control of the cleaning of the condensing groove of the rotor 1 by the cleaning rod 4, and the control can be performed in accordance with the amount of residue to be cleaned in the condensing groove, or the cleaning frequency can also be controlled by a preset periodic time, as follows:
  • the operation of the driving device 5 is controlled by detecting the amount of residue to be cleaned in the condensing groove of the rotor 1.
  • the amount of residue to be cleaned in the condensing groove of the rotor 1 is detected by the detection device, and then the control device controls the frequency at which the cleaning rod 4 enters the rotor 1 according to the detection result of the detection device.
  • the amount of residue to be cleaned in the condensing groove of the rotor 1 is monitored in real time.
  • the cleanliness of the condensing groove is not high and there are abnormal conditions, there is an abnormal change in the amount of charge in the condensing groove. In this way, the condensing groove can be cleaned timely and efficiently.
  • the cleaning frequency of rotor 1 is preset, and cleaning is performed regularly.
  • the self-cleaning mechanism is provided with a control device.
  • Control software of the control device is preset with a preset frequency for cleaning the rotor 1. That is, the control device controls the frequency at which the cleaning rod 4 enters the rotor 1 according to the preset frequency. For example, if the rotor 1 is set to be cleaned once every ten minutes, then the control device controls the cleaning rod 4 to enter the rotor 1 every ten minutes, to achieve a timed and efficient cleaning of the rotor 1.
  • the cleaning rod 4 used in the present application is a consumable material.
  • the cleaning rod 4 is flexible but has a certain rigidity strength, for example resin materials such as high molecular polyethylene, polypropylene and the like, or rubber materials, nylon materials and the like.
  • resin materials such as high molecular polyethylene, polypropylene and the like, or rubber materials, nylon materials and the like.
  • the cleaning rod 4 can come into contact with the inner wall of the condensing groove and the end portion can be worn away.
  • the cleaning rod 4 is fed after each cleaning, to ensure that the cleaning rod 4 can get into contact with the inner wall of the condensing groove and clean it.
  • the cleaning rod 4 can also be made of other wear-resistant materials, and can be maintained or replaced after a certain period.

Landscapes

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

Claims (8)

  1. Structure autonettoyante de dispositif de filature à rotor, comprenant
    un dispositif de filature qui comporte un insert à coupelle (2) permettant d'acheminer des fibres de coton,
    un rotor (1), qui comporte une rainure de condensation permettant de former un fil, une tige de nettoyage (4) qui est conçue pour s'étendre dans, et pour nettoyer, la rainure de condensation du rotor (1) lorsque le rotor (1) est dans un état de fonctionnement en rotation, et
    un dispositif d'entraînement (5) permettant d'entraîner la tige de nettoyage (4) pour la faire fonctionner, dans laquelle la tige de nettoyage (4) est constituée d'un matériau flexible,
    caractérisée en ce que
    l'insert à coupelle (2) est pourvu d'un canal guide (3) pour permettre à la tige de nettoyage (4) de s'étendre dans le rotor (1), moyennant quoi le canal guide (3) comporte un segment en forme d'arc permettant de guider la tige de nettoyage (4) vers la rainure de condensation.
  2. Structure autonettoyante de dispositif de filature à rotor selon la revendication 1, caractérisée en ce que, le dispositif d'entraînement (5) ajuste automatiquement la longueur de la tige de nettoyage (4) qui s'étend dans la rainure de condensation du rotor (1) selon le besoin.
  3. Structure autonettoyante de dispositif de filature à rotor selon la revendication 1, caractérisée en ce que, le canal guide (3) comporte une première extrémité et une seconde extrémité dans la direction d'entrée de la tige de nettoyage (4), moyennant quoi la seconde extrémité est pourvue d'une partie de guidage qui a une surface d'arc de guidage, en fonction de laquelle, lorsque la tige de nettoyage (4) entre à partir de la première extrémité et arrive au niveau de la seconde extrémité, la tige de nettoyage (4) fléchit sous le guidage de la surface d'arc de guidage pour se déplacer en direction de la rainure de condensation.
  4. Structure autonettoyante de dispositif de filature à rotor selon la revendication 1, caractérisée en ce qu'elle comprend en outre un dispositif de commande permettant de commander le dispositif d'entraînement (5) et un dispositif de détection permettant de détecter la quantité de résidu à nettoyer dans la rainure de condensation du rotor (1), dans laquelle le dispositif de commande est conçu pour commander la fréquence à laquelle la tige de nettoyage (4) entre dans le rotor (1) selon le résultat de détection du dispositif de détection (5).
  5. Structure autonettoyante de dispositif de filature à rotor selon la revendication 1, caractérisée en ce qu'elle comprend en outre un dispositif de commande permettant de commander le dispositif d'entraînement (5), moyennant quoi le dispositif de commande est préréglé avec une fréquence préréglée pour le nettoyage du rotor (1) et est conçu pour commander la fréquence à laquelle la tige de nettoyage (4) entre dans le rotor (1) selon la fréquence préréglée.
  6. Machine textile comprenant un nombre de rangées de stations agencées côte à côte, caractérisée en ce que, chacune des stations comprend une structure autonettoyante de dispositif de filature à rotor selon l'une quelconque des revendications 1 à 5.
  7. Procédé de fonctionnement d'autonettoyage de rotor, caractérisé en ce que le procédé utilise une structure autonettoyante de dispositif de filature à rotor selon l'une quelconque des revendications 1 à 5, dans lequel, lorsque le rotor (1) doit être nettoyé, le dispositif d'entraînement (5) entraîne la tige de nettoyage (4) pour qu'elle se déplace d'une position de fonctionnement initiale à une position de fonctionnement de nettoyage dans laquelle la tige de nettoyage (4) est en contact avec la rainure de condensation du rotor (1) dans l'état de fonctionnement en rotation.
  8. Procédé de fonctionnement d'autonettoyage de rotor selon la revendication 7, caractérisé en ce que, après que la tige de nettoyage (4) a achevé le nettoyage du rotor (1), la tige de nettoyage (4) est éloignée du rotor (1) à partir de la position de fonctionnement de nettoyage et ramenée à la position de fonctionnement initiale.
EP22150970.6A 2021-01-19 2022-01-11 Structure autonettoyante de dispositif de filature à rotor, machine textile et procédé de fonctionnement autonettoyant Active EP4029978B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110070207.6A CN112760764A (zh) 2021-01-19 2021-01-19 一种转杯纺纱器自清洁结构、纺织机械及自清洁操作方法

Publications (2)

Publication Number Publication Date
EP4029978A1 EP4029978A1 (fr) 2022-07-20
EP4029978B1 true EP4029978B1 (fr) 2024-08-21

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Application Number Title Priority Date Filing Date
EP22150970.6A Active EP4029978B1 (fr) 2021-01-19 2022-01-11 Structure autonettoyante de dispositif de filature à rotor, machine textile et procédé de fonctionnement autonettoyant

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EP (1) EP4029978B1 (fr)
CN (1) CN112760764A (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1560301A1 (de) * 1966-08-11 1972-04-06 Schubert & Salzer Maschinen Vorrichtung zur Reinigung von Spinnturbinen in Offen-End-Spinnvorrichtungen
DE4411343A1 (de) * 1994-03-31 1995-10-05 Schlafhorst & Co W Vorrichtung zum Reinigen eines im Rotorgehäuse einer Offenend-Spinneinheit umlaufenden Rotors
DE10023148A1 (de) 2000-05-12 2001-11-22 Hohlbein Renate Vorrichtung zur Berechnung des Alkoholgehalts im Blut des menschlichen Körpers
DE10227123A1 (de) * 2002-06-13 2003-12-24 Rieter Ingolstadt Spinnerei Vorrichtung zum Reinigen eines stillstehenden Offenend-Spinnrotors
CN103541058B (zh) * 2013-09-25 2016-02-24 上海捷春进出口贸易有限公司 一种转杯纺纱机的自清洁结构
DE102016009278A1 (de) * 2016-07-29 2018-02-01 Saurer Germany Gmbh & Co. Kg Verfahren und Reinigungsvorrichtung zum Reinigen des Spinnrotors einer Rotorspinnvorrichtung
DE102018133367A1 (de) * 2018-12-21 2020-06-25 Maschinenfabrik Rieter Ag Arbeitsstelle einer Rotorspinnmaschine mit einer Reinigungseinheit sowie Verfahren zum Betrieb einer solchen Vorrichtung
CN214328007U (zh) * 2021-01-19 2021-10-01 卓郎（江苏）纺织机械有限公司 一种转杯纺纱器自清洁结构、纺织机械

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Publication number Publication date
CN112760764A (zh) 2021-05-07
EP4029978A1 (fr) 2022-07-20

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