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公开(公告)号：US4050226A
公开(公告)日：1977-09-27
申请号：US730593
申请日：1976-10-07
摘要： An arrangement for timing the initiation of a spinning-in operation of an open-end textile machine is described. A sequencer is coupled to the take-up bobbin to provide an indication proportional to the increase in diameter of the yarn package during the take-up operation. The sequencer converts changes in such indication to a variable delay of signals to be applied to at least the take-up rollers and yarn-distributing rollers of the machine. The thus-delayed signals, whose delay is continually updated as the diameter of the yarn package increases, are applied to the appropriate rollers upon the detection of yarn breakage or other suitable initiation signal for the spinning-in mode.
摘要翻译： 描述了用于定时开始开端纺织机的纺纱操作的布置。 定序器耦合到卷取筒管，以提供与卷取操作期间纱线卷装的直径增加成比例的指示。 定序器将这种指示的变化转换为至少应用于机器的卷取辊和分配辊的信号的可变延迟。 随着纱线包装的直径不断更新的延迟信号在纱线断裂检测或纺纱模式的其他合适的起始信号时被施加到适当的辊子上。
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2.发明授权
公开(公告)号：US4246749A
公开(公告)日：1981-01-27
申请号：US29371
申请日：1979-04-12
申请人： Karel Mikulecky , Jiri Elias , Frantisek Burysek , Stanislav Esner , Stanislav Skoda , Miloslav Tyl , Jan Janousek
发明人： Karel Mikulecky , Jiri Elias , Frantisek Burysek , Stanislav Esner , Stanislav Skoda , Miloslav Tyl , Jan Janousek
CPC分类号： D01H4/50
摘要： A method of and an apparatus for piecing yarn in open end rotor spinning units. The returning of the yarn end into the spinning rotor for piecing is performed in two stages, in the first of which the yarn is stopped immediately upon breakage within the sucking range of the spinning rotor, and is brought immediately thereafter into a withdrawal chamber in which the yarn end is retained. In the second stage the yarn end is separated and deposited in said withdrawal chamber, and the new yarn end is introduced by further reverse motion into the spinning rotor. The apparatus has a withdrawal chamber interposed between the inlet of the withdrawing channel and a cutting mechanism. In one embodiment said chamber is connected to the withdrawing channel, opposite which there is mounted a nozzle connected to a controlled pressure air source. In another embodiment there is provided a nozzle communicating with the withdrawal chamber, said nozzle being connected to a controlled source of underpressure.
摘要翻译： 用于在开放式转子纺纱单元中接头纱线的方法和装置。 将纱线端部返回到用于接头的纺丝转子中进行两个阶段，其中第一个纱线在旋转转子的吸入范围内立即停止，并立即被引入到抽出室中，其中 纱线端部被保持。 在第二阶段中，纱线端部被分离并沉积在所述抽出室中，并且新的纱线端部通过进一步的反向运动引入纺丝转子中。 该设备具有介于抽出通道的入口和切割机构之间的抽出室。 在一个实施例中，所述腔室连接到抽出通道，与之相对的是安装有与受控压力空气源连接的喷嘴。 在另一个实施例中，提供了一个与抽出室连通的喷嘴，所述喷嘴连接到受控的负压源。
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公开(公告)号：US4369620A
公开(公告)日：1983-01-25
申请号：US233398
申请日：1981-02-11
申请人： Frantisek Burysek , Karel Mikulecky , Jiri Elias , Stanislav Esner , Stanislav Skoda , Jan Janousek
发明人： Frantisek Burysek , Karel Mikulecky , Jiri Elias , Stanislav Esner , Stanislav Skoda , Jan Janousek
CPC分类号： D01H4/50
摘要： The invention relates to an apparatus for the spinning-in of yarns in an open-end rotor spinning unit. The apparatus includes a spinning-in device for returning yarn end through a take-off duct into the spinning rotor, a severing device for shortening the yarn end to a predetermined length, and a withdrawing duct which communicates with the take-off duct and which is designed, on the one hand, for holding the yarn end by the action of a vacuum which, in the contact region of the two ducts, exceeds the working vacuum in the take-off duct, and, on the other hand, for withdrawing the severed yarn end. In accordance with an essential feature of the invention, at least one air nozzle opens into the withdrawing duct which during both spinning and spinning-in processes is connected to a subatmospheric pressure source, which nozzle is designed for introducing a fresh yarn end into the take-off duct by a controlled air outflow in a particular phase of the spinning-in process. The invention expediently utilizes the subatmospheric pressure air for both the spinning-in process and the withdrawal of impurities from the yarn in the take-off duct of the spinning rotor during the spinning process.
摘要翻译： 本发明涉及一种用于在开放式转子纺纱单元中纺纱的装置。 该装置包括用于将纱线端部通过引出管道返回到纺丝转子中的纺纱装置，用于将纱线端部缩短到预定长度的切断装置和与取出管道连通的抽出管道， 一方面设计用于通过在两个导管的接触区域中超过起飞管中的工作真空度的真空的作用来保持纱线端，另一方面，为了抽出 切断纱线末端。 根据本发明的基本特征，至少一个空气喷嘴通向抽出管道，在两个纺纱和纺纱过程中，两个喷嘴连接到一个低于大气压的压力源，该喷嘴被设计用于将新鲜的纱线端部引入到卷取装置 在纺纱过程的特定阶段通过受控的空气流出。 本发明在纺丝过程中方便地利用低于大气压的空气进行纺丝过程和纺丝转子的送出管中的纱线中的杂质的抽出。
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公开(公告)号：US4104854A
公开(公告)日：1978-08-08
申请号：US730416
申请日：1976-10-07
申请人： Karel Mikulecky , Miloslav Tyl , Jan Janousek , Frantisek Burysek , Stanislav Skoda , Stanislav Esner
发明人： Karel Mikulecky , Miloslav Tyl , Jan Janousek , Frantisek Burysek , Stanislav Skoda , Stanislav Esner
CPC分类号： D01H4/48
摘要： An improved technique for stopping the advance of spun yarn through the draw-off rollers and distributing cylinder of an open-end spinning machine in response to a detected yarn breakage condition is described. A reversible clutch is selectively interposed between first and second oppositely rotating drive shafts and the cylinder, which in turn is coupled to the draw-off rollers. The clutch is operated from a normal forward advance condition to an operated reverse condition for a duration corresponding to a variable-duration control pulse generated in response to a yarn breakage condition upstream of the discharge end of the machine withdrawal tube. The duration of the control pulse is adjusted to dynamically brake the forward motion of the advancing yarn to a stop. The control pulse is removed soon enough to prevent reverse movement of the yarn.
摘要翻译： 描述了一种改进的技术，用于响应于检测到的纱线断裂状况，停止纺纱通过抽出辊和开口纺纱机的分配筒的进行。 可逆式离合器选择性地插入在第一和第二相对旋转的驱动轴和气缸之间，气缸又连接到抽出辊。 离合器从正常的向前进给状态操作到操作的反转状态，持续时间对应于响应于机器提取管的排出端上游的断纱条件产生的可变持续时间控制脉冲。 控制脉冲的持续时间被调整以动态地将前进纱线向前运动地制动到停止位置。 控制脉冲被足够快地移除以防止纱线的反向移动。
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公开(公告)号：US4083507A
公开(公告)日：1978-04-11
申请号：US728838
申请日：1976-10-01
申请人： Frantisek Pospisil , Stanislav Skoda , Stanislav Esner , Miroslav Tyl , Karel Mikulecky , Miloslav Jiskra
发明人： Frantisek Pospisil , Stanislav Skoda , Stanislav Esner , Miroslav Tyl , Karel Mikulecky , Miloslav Jiskra
CPC分类号： B65H54/50 , B65H2701/31
摘要： An improved construction of a rotary yarn-distributing cylinder cooperable with a yarn take-up bobbin at the output of an open-end spinning machine or similar textile apparatus is described. The major portion of the periphery of the distributing cylinder is formed by or covered with a smooth material having a high coefficient of friction to promote efficient driving engagement with the adjacent bobbin. The boundaries of the first surface region are separated from the respective edges of the inclined distributing grooves on the cylinder periphery by second surface regions in the form of smooth strips. The strips exhibit a coefficient of friction considerably lower than the coefficient of the material of the first surface region to permit smooth and unretarded payoff of the yarn in the grooves to the bobbin as the cylinder rotates.
摘要翻译： 描述了在开口纺纱机或类似纺织设备的输出处与纱线卷取筒管配合的旋转纱线分配筒的改进结构。 分配筒的周边的主要部分由具有高摩擦系数的光滑材料形成或覆盖，以促进与相邻绕线筒的有效驱动接合。 第一表面区域的边界与圆柱体周边的倾斜分布槽的相应边缘以平滑条带形式的第二表面区域分开。 这些条带显示出比第一表面区域的材料的系数显着地低的摩擦系数，以允许当圆筒旋转时纱线在凹槽中对纱管的平滑和无延伸的收益。
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