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

IPC分类号： B65H69/06 ,  D01H4/50 ,  D01H15/02

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。

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

IPC分类号： D01H13/16 ,  D01H4/48 ,  D01H4/50 ,  D01H15/00

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。

公开(公告)号：US4329839A

公开(公告)日：1982-05-18

申请号：US139807

申请日：1980-04-14

申请人： Jaroslav Dykast ,  Karel Mikulecky ,  Miloslav Tyl

发明人： Jaroslav Dykast ,  Karel Mikulecky ,  Miloslav Tyl

IPC分类号： D01H4/42 ,  D01H15/00 ,  D01H1/30

CPC分类号： D01H4/42

摘要： Method of and apparatus for operating an open end spinning machine having a plurality of spinning units each including a sliver feeding device, a fiber separating device, a twist forming element, a yarn taking-off device, yarn winding device and a reversing mechanism for returning the yarn end back into the twist forming element. The twist forming element and the fiber separating device are set in operation; thereafter the fiber feeding is started simultaneously with the yarn end reverse travel to return same into the twist forming element in which a fibrous ribbon is formed of the fibers supplied. After spinning-in said yarn end with said fibrous ribbon the yarn is again set into a forward operative travel.

摘要翻译： 用于操作具有多个纺纱单元的开口纺纱机的方法和装置，每个纺纱单元包括纱条进给装置，纤维分离装置，加捻成形元件，纱线取出装置，纱线卷绕装置和用于返回的反转机构 纱线返回到扭曲成形元件中。 扭转形成元件和光纤分离装置设置在操作中; 此后，纤维进料与纱线端部反向行进同时开始，将其返回到由所供给的纤维形成纤维带的扭转成形元件中。 在所述纱线末端与所述纤维带纺丝之后，纱线再次设置为向前的操作行进。

公开(公告)号：US4408447A

公开(公告)日：1983-10-11

申请号：US254756

申请日：1981-04-16

申请人： Jiri Sloupensky ,  Miloslav Tyl

发明人： Jiri Sloupensky ,  Miloslav Tyl

IPC分类号： G05B15/02 ,  D01H1/20 ,  D01H4/42 ,  G06F3/04

CPC分类号： D01H4/42

摘要： The invention relates to a method of and a system for controlling the operation of open-end spinning machines comprising a plurality of spinning units, which method is based upon a permanent cyclic communication of a central unit of the system with the individual spinning units. According to the invention, at a given instant, a single spinning unit only is connected to the central unit of the control system, said central unit being supplied with information data about the condition of the spinning unit connected thereto while said central unit simultaneously transmits instructions for said spinning unit, the other spinning units operating automatically on the basis of the stored instruction the validity of which lasts for the time of one control cycle.

摘要翻译： 本发明涉及一种用于控制包括多个纺纱单元的开放式纺纱机的操作的方法和系统，该方法基于系统的中心单元与各个纺纱单元的永久循环连通。 根据本发明，在给定的时刻，单个纺纱单元仅连接到控制系统的中央单元，所述中央单元被提供关于与其连接的纺纱单元的状态的信息数据，同时所述中央单元同时传送指令 对于所述纺纱单元，其他纺纱单元基于存储的指令自动操作，其有效性持续一个控制周期。