阅读说明：本技术 气流纺纱装置的操作方法、导纱通道和包括这种导纱通道的气流纺纱机 (Method for operating an open-end spinning device, yarn guide channel and open-end spinning machine comprising such a yarn guide channel ) 是由 迈克尔·莫尔 海因茨-约瑟夫·波伊克 C·赛沙伊尔 拉尔夫·西韦特 J·索布克瓦克 保罗· 于 2018-07-13 设计创作，主要内容包括：本发明涉及用于在纺纱中断后操作气流纺纱装置的方法、导纱通道和包括这种导纱通道的气流纺纱机。在气流纺纱装置的纤维带移动方向上在上游连接有用于牵拉条子的牵伸系统,可被单个马达驱动的用于抽出借助气流纺纱装置纺成的纱线的纱线牵拉装置接设在下游。根据本发明,在纺纱中断后,纺成纱线的存留在卷绕筒子上的纱线头通过吸嘴被接收并被送至在条子移动方向上布置在气流纺纱装置下游的纱线头准备装置,纱线头在纱线头准备装置中被加工处理且随后被送至纺纱锥的出口区域,纱线头被气流输送至纺纱锥的入口并且在那里在入口前有一段距离地就位在气流纺纱装置内,相关工位的牵伸系统被抬起并且条子经由喷嘴组件的条子引导机构被送入纺纱锥的入口区域并在那里被纺到纺成纱线的准备好的纱线头上。(The invention relates to a method for operating an open-end spinning device after a spinning interruption, a yarn guide channel and an open-end spinning machine comprising such a yarn guide channel. A drafting system for drawing the sliver is connected upstream in the direction of movement of the fiber band of the open-end spinning device, and a yarn drawing device which can be driven by a single motor and which draws out the yarn spun by the open-end spinning device is connected downstream. According to the invention, after a spinning interruption, the thread end of the spun thread remaining on the winding bobbin is taken up by the suction nozzle and fed to a thread end preparation device arranged downstream of the rotor spinning device in the sliver displacement direction, the thread end is processed in the thread end preparation device and then fed to the outlet region of the spinning cone, the thread end is conveyed to the inlet of the spinning cone by an air flow and is located in the rotor spinning device at a distance before the inlet, the drafting system of the relevant station is raised and the sliver is fed via the sliver guiding device of the nozzle assembly into the inlet region of the spinning cone and is spun there onto the prepared thread end of the spun thread.)

1. A method for operating an open-end spinning device (5) after a spinning interruption, in which a drafting system (4) for drafting a sliver (25) is connected upstream of the open-end spinning device (5) in the direction (R) of the sliver and a yarn-drawing device (6) which can be driven by a single motor in order to draw off a yarn (36) spun by the open-end spinning device (5) is connected downstream, characterized in that, after a spinning interruption, a yarn end (37) of the spun yarn (36) which travels onto the winding bobbin (9) is taken up by a suction nozzle (39) and fed to a yarn end preparation device (40) which is arranged downstream of the open-end spinning device (5) in the direction (R) of sliver movement, the yarn end (37) being processed in the yarn end preparation device (40) and subsequently being fed into the outlet region of the spinning cone (19), the thread end (37) is fed by the thread pulling device (6) to an inlet (35) of the spinning cone (19), which is driven reversibly by a single motor and is there seated in front of the inlet (35) at a distance in the open-end spinning device (5), the drafting system (4) of the associated station (2) is raised, and the sliver (25) is fed by means of a sliver guide (18) of the nozzle assembly (17) into the region of the inlet (35) of the spinning cone (19) and is there spun onto a prepared thread end (37) of the spun thread (36).

2. Method according to claim 1, characterized in that the thread end (37) of the spun thread (36) which has advanced onto the winding bobbin (9) is received by a suction nozzle (39) which is part of each station (2) of the rotor spinning machine.

3. Method according to claim 1, characterized in that the thread end (37) of the spun thread (36) which has travelled onto the winding bobbin (9) is received by a suction nozzle (39) which is part of a mobile maintenance unit (10) for the supply to a plurality of stations (2) of the rotor spinning machine.

4. Method according to claim 1, characterized in that the thread end preparation device (40) has a small hold-open tube (31) for preparing the thread end (37) of the spun thread (36) for the splicing operation.

5. Method according to claim 1, characterized in that the drawing system (4) of the respective station (5) drawing the sliver (25) can be driven, in particular reversibly, by a single motor.

6. A yarn guiding channel (60; 90) for arrangement between a spinning device (5) and a winding device of a spinning machine (1) for producing wound bobbins (9), in particular for carrying out a method according to one of the preceding claims, wherein the yarn guiding channel (60; 90) forms a path of travel for a yarn (36) moving between the spinning device (5) and the winding device, characterized in that the yarn guiding channel (60; 90) has a plurality of interconnected channel segments (62,64, 66; 92,94,96) which can be acted upon by an air flow, comprising at least a first channel segment (62; 92), a second channel segment (64; 94) and a channel connecting segment (66; 96) arranged between the first channel segment (62; 92) and the second channel segment (64; 94), wherein the channel connecting segment (66; 96) has a mouth (68; 98) for supplying compressed air into the yarn guiding channel (60; 90) To generate an overpressure of the gas flow in the first channel section (62; 92) in relation to the suction of the gas flow in the second channel section (64; 94).

7. Yarn guide channel (60) according to claim 6, characterized in that the yarn guide channel (60; 90) and in particular the channel connecting section (66) has a yarn deflection section (67) for deflecting the yarn (36).

8. The thread guiding channel (60) according to claim 7, characterized in that the travel axis of the mouth (68) extends parallel and in particular congruent to the thread guiding axis of the first channel section (62) and transversely to the thread guiding axis of the second channel section (64).

9. Yarn guide channel (60; 90) according to one of claims 6 to 8, characterized in that the yarn guide channel (60; 90) has a fastening section for fastening the yarn guide channel (60; 90) to a housing or frame section (100) of a station (2) of the spinning machine (1), which fastening section in particular forms a housing (70) for accommodating at least one yarn deflection section (67).

10. Yarn guiding channel (60; 90) according to one of the claims 6 to 9, characterized in that a yarn end preparing device (40) is provided having at least one small holding open tube (31) for preparing the yarn end (37), wherein the small holding open tube (31) is arranged or formed at the end (64B) of the yarn guiding channel (60; 90) near the winding package (9).

11. A yarn guide channel (60; 90) according to claim 10, characterised in that the small hold-open tube (31) forms the second channel section (64; 94).

12. Yarn guide channel (60; 90) according to one of claims 6 to 11, characterized in that the end (62B) of the yarn guide channel (60; 90) close to the spinning device (5) is of a nozzle-like structure or adjoins an element (74) in a nozzle-like structure.

13. Yarn guiding channel (60; 90) according to claim 12, characterized in that the nozzle-like end (62B) of the yarn guiding channel (60; 90) or the nozzle-like element (74) close to the spinning device (5) is arranged at a spacing from a funnel inlet (76) of a yarn guiding funnel (76,77,78) leading to the spinning device (5), the spacing being selected such that a yarn end (37) leaving the yarn guiding channel (60; 90) close to the end of the spinning device (5) or the nozzle-like element (74) close to the end of the spinning device (5) can be guided at least into the funnel inlet (76) and in particular also into at least one yarn passage (77; 78) bordering the funnel inlet (76) by means of compressed air generated in the channel connecting section (66; 96), the at least one yarn passage (77; 78) is arranged spaced apart from the funnel inlet (76).

14. A rotor spinning machine (1) comprising:

an open-end spinning device (5), the open-end spinning device (5) being used for spinning a yarn (36) from a supplied sliver (35);

a yarn drawing device (6), the yarn drawing device (6) being driven by a single motor to draw the yarn (36) from the open-end spinning device (5); and

a winding device for winding the spun yarn (36),

characterized in that a yarn guiding channel (60; 90) according to any one of the preceding claims is arranged between the open-end spinning device (5) and the winding device downstream, in particular between the open-end spinning device (5) and the single-motor-driven yarn pulling device (6) connected upstream of the winding device, wherein the yarn pulling device (6) can be driven reversibly and can be controlled accordingly, in addition to supplying the yarn (36) in the direction of the open-end spinning device (5).

15. Rotor spinning machine (1) according to claim 14, characterised in that the rotor spinning machine (1) has a drafting system (4) for the sliver (35) for defined drafting and supply driven by a single motor, the driving of the drafting system (4) being controllable independently of the driving of the fibre winding device (6).