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1. 发明授权

US4969489A Weft threading system for fluid jet loom using the storage drum winding arm 失效
标题翻译：使用存储鼓卷绕臂的流体喷射织机纬纱系统
公开(公告)号：US4969489A
公开(公告)日：1990-11-13
申请号：US359797
申请日：1989-06-01
申请人： Kazuhiro Tanaka , Shinji Wakai , Masayuki Koriyama , Keizo Shizuka , Jotaro Uehara
发明人： Kazuhiro Tanaka , Shinji Wakai , Masayuki Koriyama , Keizo Shizuka , Jotaro Uehara
IPC分类号： D03D47/34
CPC分类号： D03D47/34
摘要： A weft threading system for threading a weft yarn prior to restart of weaving operations of a fluid jet loom. The weft threading system is comprised of a weft winding arm forming part of a weft storage unit, arranged to wind the weft yarn on a drum under relative rotation between the weft winding arm and the drum. The weft winding arm is pipe-shaped so that an air jet is passed therethrough and ejected from its tip end section. The tip end section of the weft winding arm is bent so that the air jet ejected therefrom is directed to a weft guide disposed separate from the weft storage unit and on the upstream side of a weft inserting or main nozzle. The weft guide ejects an air jet in order to suck the weft yarn and project it therefrom, so that the weft yarn from the weft winding arm is automatically passed through the weft guide into the weft inserting nozzle.

2. 发明授权

US4989644A Automatic mispicked weft yarn removal system for a fluid jet loom 失效
标题翻译：用于流体喷气织机的自动错纬纬纱去纱系统
公开(公告)号：US4989644A
公开(公告)日：1991-02-05
申请号：US341403
申请日：1989-04-21
申请人： Kazuhiro Tanaka , Masayuki Koriyama , Jotaro Uehara , Keizo Shizuka , Kimimasa Onishi
发明人： Kazuhiro Tanaka , Masayuki Koriyama , Jotaro Uehara , Keizo Shizuka , Kimimasa Onishi
IPC分类号： D03D51/00 , D03D47/34 , D03D51/08
CPC分类号： D03D47/34 , D03D51/085
摘要： A weft treatment system and method for removing a mispicked weft yarn from a weft path of a fluid jet loom of the type wherein a weft yarn from a weft supply member is introduced through a weft storage unit to a weft inserting nozzle to be picked. With this system and method, a mispicked weft yarn is detected when mispick occurs. Then, the operation of a cutter and weaving operation of the loom are stopped. Subsequently, the loom is reversely run to expose the mispicked weft yarn at the cloth fell of a woven fabric. More specifically, the weft winding arm is reversely rotated around the storage drum to unwind the weft yarn on the drum. The thus exposed mispicked weft yarn is drawn through the weft storage unit by a weft traction device disposed between the weft supply member and the weft storage unit.

3. 发明授权

US4915142A Weft insertion control system for jet loom responsive to inserted weft end behavior 失效
标题翻译：喷丝织机的纬纱插入控制系统响应于插入的纬纱行为
公开(公告)号：US4915142A
公开(公告)日：1990-04-10
申请号：US340746
申请日：1989-04-20
申请人： Jotaro Uehara
发明人： Jotaro Uehara
IPC分类号： D03D47/28 , D03D47/30 , D03D47/36 , D03D51/34
CPC分类号： D03D47/3073 , D03D47/3033
摘要： A weft insertion control system for a jet loom includes a weft yarn sensor for sensing a behavior of a forward end of an inserted weft yarn accurately, and a controlling system for controlling a weft inserting condition such as a fluid jet in accordance with the sensed behavior. The weft yarn sensor is arranged to detect at least one of the following first, second and third conditions. The first condition is a condition in which the picked weft yarn is elongated to a greatest length, and the weft forward end is farthest from a main fluid jet nozzle. The second condition is a condition in which the weft end is pulled back most by shrinkage of the weft yarn after the first condition is reached. The third condition is a condition in which the weft yarn is elongated again to a relative maximum length.
摘要翻译：用于喷气织机的引纬控制系统包括用于精确地感测插入的纬纱的前端的行为的纬纱传感器，以及用于根据所感测的行为来控制诸如流体喷射的纬纱插入条件的控制系统。纬纱传感器布置成检测以下第一，第二和第三条件中的至少一个。第一个条件是这样的条件，其中拾取的纬纱被拉伸到最大长度，纬纱前端距主流体喷嘴最远。第二个条件是在达到第一个条件之后纬纱的收缩最大程度地拉回纬纱端的情况。第三个条件是纬纱再次伸长到相对最大长度的条件。

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