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公开(公告)号：US4596276A
公开(公告)日：1986-06-24
申请号：US716610
申请日：1985-03-28
IPC分类号： D03D47/30
CPC分类号： D03D47/302
摘要： A weft picking device of an air jet loom, comprises a plurality of air guide members spaced one from the other and in alignment with the direction of weft insertion. Each air guide member is formed with an air guide opening which forms part of a weft guide channel. Additionally, a plurality of auxiliary nozzles are disposed at certain intervals along the weft guide channel. Each auxiliary nozzle is in the shape of a hollow rod and formed at the wall thereof with an air ejection opening. The outer diameter of each auxiliary nozzle is smaller than the thickness of the air guide member. At least an upper part, having the air ejection opening, of the auxiliary nozzle is located between two opposing planes defining the thickness of the air guide member, thereby preventing the warp yarns from rubbing contact with the auxiliary nozzles.
摘要翻译： 喷气织机的纬纱拾取装置包括彼此间隔开并与纬纱插入方向对准的多个空气引导件。 每个空气引导构件形成有形成引纬通道的一部分的空气引导开口。 另外，多个辅助喷嘴沿纬纱引导通道以一定间隔设置。 每个辅助喷嘴为中空杆的形状，并在其壁上形成有空气喷射口。 每个辅助喷嘴的外径小于导气部件的厚度。 至少具有空气喷射口的辅助喷嘴的上部位于限定空气引导构件的厚度的两个相对平面之间，从而防止经纱与辅助喷嘴摩擦接触。
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公开(公告)号：US4401139A
公开(公告)日：1983-08-30
申请号：US250005
申请日：1981-04-01
IPC分类号： D03D47/30
CPC分类号： D03D47/302
摘要： A weft picking device of an air jet loom, comprises a plurality of air guide members in alignment with the direction of weft picking, each air guide member being spaced predetermined distances from adjacent air guide members to define respective spaces therebetween, the air guide members being respectively formed with air guide openings to define a weft guide channel to which a weft yarn from a weft inserting nozzle is inserted, at least one auxiliary nozzle being disposed in a first section of a space between two adjacent air guide members, the space having a second section which is located opposite the first section relative to the axis of the weft guide channel, the width of the second section being less than that of the first section, thereby preventing the weft yarn from getting out of the weft guide channel to effectively accomplish weft picking.
摘要翻译： 一种喷气织机的纬纱拾取装置，包括与引纬方向对齐的多个空气引导构件，每个空气引导构件与相邻的空气引导构件隔开预定的距离，以在它们之间限定相应的空间，空气引导构件为 分别形成有空气引导开口以限定纬纱引导通道，来自纬纱插入喷嘴的纬纱插入到纬纱引导通道中，至少一个辅助喷嘴设置在两个相邻空气引导构件之间的空间的第一部分中，该空间具有 第二部分，其相对于引纬通道的轴线与第一部分相对，第二部分的宽度小于第一部分的宽度，从而防止纬纱从引纬通道离开以有效地完成 纬纱采摘
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公开(公告)号：US4458731A
公开(公告)日：1984-07-10
申请号：US420841
申请日：1982-09-21
IPC分类号： D03D47/30
CPC分类号： D03D47/306 , D03D47/302
摘要： An air distributor construction for auxiliary nozzles of an air jet loom, comprises an air passage which extends along the direction of weft picking and communicates with all the auxiliary nozzles, the air passage being supplied with pressurized air. Additionally, a certain number of sealing members are detachably disposed at certain locations of the air passage to divide the air passage into a certain number of air distribution passages each of which communicates with each group of auxiliary nozzles, thereby constituting an independent air supply system for each group of auxiliary nozzles. Accordingly, the number of auxiliary nozzles corresponding to each air supply system becomes variable.
摘要翻译： 一种用于喷气织机的辅助喷嘴的空气分配器结构，包括沿着纬纱拾取方向延伸并与所有辅助喷嘴连通的空气通道，空气通道被供应加压空气。 此外，一定数量的密封构件可拆卸地设置在空气通道的某些位置处，以将空气通道分成一定数量的空气分配通道，每个空气分配通道与每组辅助喷嘴连通，从而构成独立的空气供应系统， 每组辅助喷嘴。 因此，与各空气供给系统对应的辅助喷嘴的数量变多。
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公开(公告)号：US4516610A
公开(公告)日：1985-05-14
申请号：US519396
申请日：1983-08-01
IPC分类号： D03D47/30
CPC分类号： D03D47/306 , D03D47/278 , D03D47/302 , D03D47/3053
摘要： An air guide member has therein an air guide opening and a slit through which the weft thread passes out of the opening. The opening has an inwardly projected land portion with first and second peripheral sides and includes an air induction section directly connected to the slit and a weft guiding section connected through the air induction section to the slit. The first peripheral side bounds partially the air induction section, while, the second peripheral side bounds partially the weft guiding section. An auxiliary nozzle is associated with one of the air guide members and has an air jet opening exposed to the air induction section so that the air jet from the opening advances toward the weft guiding section after passing through the air induction section. The opening is inclined toward the weft picking direction by a given angle with respect to the direction. An imaginary plane containing the second peripheral side of the land portion intersects the perimeter of the weft guiding section at a position away from the slit.
摘要翻译： 空气引导构件具有空气引导开口和缝线，纬纱通过该狭缝从开口中流出。 开口具有向内突出的陆部，其具有第一和第二周边，并且包括直接连接到狭缝的空气感应部和通过空气感应部连接到狭缝的引纬部。 第一周边部分限定空气感应部分，而第二周边部分限定纬纱引导部分。 辅助喷嘴与空气引导构件中的一个相关联，并且具有暴露于空气引导部分的空气喷射口，使得来自开口的空气射流在通过空气引导部分之后朝向引纬部分前进。 开口朝着纬纱拣选方向倾斜相对于方向的给定角度。 包含陆部的第二周边侧的假想平面在远离狭缝的位置处与引纬部的周边相交。
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公开(公告)号：US4481982A
公开(公告)日：1984-11-13
申请号：US518916
申请日：1983-08-01
IPC分类号： D03D47/34
CPC分类号： D03D47/34
摘要： In a jet weaving loom having a frame, a reed holder pivotally movable relative to the frame in the downstream and upstream directions with respect to the motion of the warp threads, a jet nozzle mounted on the reed holder to move therewith and ejecting the weft thread into the shed of the warp threads by the jet action thereof, and a weft gripper secured to the frame for selectively gripping and releasing the weft thread advancing toward the jet nozzle, so that when the reed holder moves in the downstream direction toward a first extreme position, the beating and the weft cutting are carried out, and when the reed holder moves in the upstream direction and comes to a second extreme position, the weft picking is actually carried out, there is provided a weft pull-back device which catches the weft thread extending between the weft gripper and the jet nozzle when the reed holder is positioned in the vicinity of the first extreme position, and holds the same for a predetermined period of time when the reed holder moves in the upstream direction toward the second extreme position after completing the beating and the weft cutting.
摘要翻译： 在具有框架的喷气织机中，相对于经线的运动在相对于框架的下游和上游方向可枢转地移动的簧片保持架，安装在簧片保持器上以与其一起移动并喷射纬纱的喷嘴 通过其喷射动作进入经纱的梭口，以及固定到框架上的纬纱夹持器，用于选择性地夹紧和释放朝向喷嘴喷射的纬纱，使得当筘座沿下游方向朝向第一极限移动时 位置，进行打纬和纬纱切割，并且当筘座沿上游方向移动并进入第二极限位置时，实际进行纬纱拾取，提供了一种纬纱拉回装置，其捕获 当纬纱保持器位于第一极限位置附近时，纬纱在纬纱夹持器和喷嘴之间延伸，并保持在预定时间段 在完成打纬和纬纱切割之后，簧片保持器在上游方向朝向第二极限位置移动的时间。
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公开(公告)号：US4989644A
公开(公告)日：1991-02-05
申请号：US341403
申请日：1989-04-21
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.
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7.发明授权
公开(公告)号：US4969489A
公开(公告)日：1990-11-13
申请号：US359797
申请日：1989-06-01
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.
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