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1. 发明授权

US4628684A Method of piecing a yarn in an open-end spinning machine 失效
标题翻译：在开放纺纱机中接纱的方法
公开(公告)号：US4628684A
公开(公告)日：1986-12-16
申请号：US540824
申请日：1983-10-11
申请人： Takayuki Morita , Akira Tanaka , Takahiko Tsunekawa , Hisao Amano
发明人： Takayuki Morita , Akira Tanaka , Takahiko Tsunekawa , Hisao Amano
IPC分类号： B65H69/06 , D01H4/50 , D01H15/02
CPC分类号： D01H4/50
摘要： A yarn piecing method in an open-end spinning machine comprises stopping a yarn piecing machine in front of a spinning unit suffering a yarn breakage, reversing a package with a rewinding roller to rewind a yarn therefrom, cutting off the yarn to provide a yarn end having a predetermined length, moving the yarn end to a position upwardly of an outlet of a withdrawal tube in the spinning unit, reversing the rewinding roller again to feed the yarn end through the withdrawal tube to a fiber collecting surface of a spinning rotor in the spinning unit, supplying a sliver with a feed roller into the spinning unit, piecing the yarn end to the sliver on the fiber collecting surface, continuously drawing a pieced yarn from the spinning rotor, and moving the pieced yarn to a position between a presser roller and a draw-off roller which are being rotated while drawing the pieced yarn from the spinning rotor. The presser roller and the draw-off roller are mounted on the open-end spinning machine and adjustable in speed dependent on the yarn number count used for yarn winding operation during a yarn piecing process.
摘要翻译：在开放式纺纱机中的接头方法包括：在接头断纱的纺纱单元的前方停止接头机，用再卷绕辊反转卷装，使纱线从其上倒带，切断纱线，提供纱线端具有预定长度，将纱线端部移动到纺纱单元中的抽出管的出口向上的位置，再次使再卷绕辊反转，以将纱线端部通过抽出管送入纺纱转子的纤维收集表面纺纱单元，将带有进料辊的条子供给到纺纱单元中，将纱线端部接合到纤维集合表面上的条子上，从纺丝转子连续拉伸接头纱线，并将接头纱线移动到压辊以及在从纺丝转子牵引接头纱线的同时旋转的抽出辊。压辊和排纸辊安装在开口纺纱机上，根据用于纱线接头过程中的纱线卷绕操作的纱线数量而可调节速度。

2. 发明授权

US4494371A Method and apparatus for yarn piecing in a ringless spinning machine 失效
标题翻译：无纺纱机中纱线接头的方法和装置
公开(公告)号：US4494371A
公开(公告)日：1985-01-22
申请号：US521601
申请日：1983-08-09
申请人： Takayuki Morita , Takahiko Tsunekawa , Hisao Amano
发明人： Takayuki Morita , Takahiko Tsunekawa , Hisao Amano
IPC分类号： B65H65/00 , D01H4/48 , D01H4/50 , D01H15/00
CPC分类号： D01H4/48
摘要： Method and apparatus for yarn piecing in a ringless spinning machine is provided, according to which yarn piecing is accomplished by unwinding a yarn from its package, rewinding a portion of the unwound yarn on to the package at one, definite position, cutting off the yarn end to a predetermined length, then introducing the cut end of the yarn into the spinning mechanism of the spinning unit, and then withdrawing the yarn from the spinning unit after the yarn end is connected with the fibers in the spinning mechanism.
摘要翻译：提供了一种无纺纱机中的接头方法和装置，根据该方法和装置，通过从其包装中退绕纱线来实现纱线接头，在一个确定的位置将退绕纱线的一部分重新卷绕到包装上，切断纱线然后将纱线的切断端引入到纺纱单元的纺丝机构中，然后在纱线端部与纺丝机构中的纤维连接之后从纱线单元中取出纱线。

3. 发明授权

US4489544A Method of piecing yarns in a spinning machine utilizing an air stream 失效
标题翻译：使用空气流在纺纱机中接纱的方法
公开(公告)号：US4489544A
公开(公告)日：1984-12-25
申请号：US521110
申请日：1983-08-08
申请人： Takayuki Morita , Takahiko Tsunekawa
发明人： Takayuki Morita , Takahiko Tsunekawa
IPC分类号： B65H65/00 , D01H4/48 , D01H4/50 , D01H15/02
CPC分类号： D01H4/50
摘要： Yarns are pieced in a spinning machine utilizing an air stream, such as an open-end spinning machine or an air-jet spinning machine. For yarn piecing, an end of a yarn unwound from a bobbin is inserted into a twisting mechanism, and a sliver is newly supplied as a fleece so as to intertwine with the yarn end forming a pieced yarn portion. The thickness of the unwound yarn is detected by a detector and stored in a memory prior to insertion into the twisting mechanism. After the yarn and the sliver have been joined, the thickness of the pieced yarn portion is detected by the detector, and the detected thickness is compared with the stored thickness of the unwound yarn. If the thickness of the pieced yarn portion exceeds an allowable value as a result of such comparison, then the yarn is severed by a cutter, and thereafter a cut end of the yarn is pieced again with the fleece. Preferably, the sliver starts being supplied into the twisting mechanism at a timing advanced or delayed with respect to the previous timing of starting of the supply of the sliver when the yarn is to be pieced again with the fleece.
摘要翻译：纱线在使用空气流的纺丝机中接合，例如开放式纺纱机或喷气纺纱机。对于接头，将从线轴展开的纱线的端部插入到扭转机构中，并且作为绒毛新提供条子，以便与形成接头纱线部分的纱线端缠绕。退绕纱线的厚度由检测器检测并在插入扭转机构之前存储在存储器中。在纱线和纱条接合之后，通过检测器检测接头纱线部分的厚度，并将检测到的厚度与存放的退绕纱线的厚度进行比较。如果由于这样的比较，接头纱线部分的厚度超过允许值，则用切割机切断纱线，然后再用绒毛再次接合纱线的切割端。优选地，当用羊毛再次接合纱线时，条子开始以相对于纱条的供应开始的先前时间提前或延迟的时间被提供给扭转机构。

4. 发明授权

US4550560A Method for piecing fasciated yarn 失效
标题翻译：拼接纱线的方法
公开(公告)号：US4550560A
公开(公告)日：1985-11-05
申请号：US593633
申请日：1984-03-26
申请人： Akira Tanaka , Takahiko Tsunekawa , Kazuo Seiki , Haruyoshi Nakamura
发明人： Akira Tanaka , Takahiko Tsunekawa , Kazuo Seiki , Haruyoshi Nakamura
IPC分类号： D01H15/00
CPC分类号： D01H15/002
摘要： A method for yarn piecing in a fasciated yarn spinning unit, in which an air nozzle for twisting a fiber bundle to form a fasciated yarn is displaced from the normal spinning position to the threading position where the air nozzle can escape from the front roller pair, whereby a free space is prepared for applying a suction means having a sufficient suction force to reversely thread a yarn to be pieced through the air nozzle.
摘要翻译：一种用于将纤维束扭曲形成折叠纱线的空气喷嘴从正常纺丝位置移动到空气喷嘴可以从前辊对逸出的穿线位置的纺丝纱线纺纱单元中的接头方法，由此制备用于施加具有足够抽吸力的抽吸装置以通过空气喷嘴反向穿过待拼接的纱线的自由空间。

5. 发明授权

US4099297A Method and apparatus for controlling the sliver-thickness variation in a carding machine 失效
标题翻译：用于控制梳理机中纱条厚度变化的方法和装置
公开(公告)号：US4099297A
公开(公告)日：1978-07-11
申请号：US720351
申请日：1976-09-03
申请人： Junzo Hasegawa , Yasutaka Hayashi , Yasuhiko Suzuki , Takashi Katoh , Takahiko Tsunekawa , Akira Tanaka
发明人： Junzo Hasegawa , Yasutaka Hayashi , Yasuhiko Suzuki , Takashi Katoh , Takahiko Tsunekawa , Akira Tanaka
IPC分类号： D01G15/36 , D01G23/06 , D01H5/38
CPC分类号： D01G23/06
摘要： A method and apparatus for controlling the sliver thickness variation in a carding machine. The thickness variation of the sliver delivered from the carding machine is measured and an electrical signal corresponding to the thickness variation of the carded sliver is issued. A difference signal is created by comparing the above-mentioned electric signal, and a control pulse signal in accordance with the difference signal is intermittently created at predetermined time intervals, each of said time intervals being shorter than a time required for a length of the carded sliver which length corresponds to a long term variation of the carded slivers thickness. The supply amount of fiber tufts to the carding machine is intermittently adjusted for reducing the above-mentioned control signal toward zero by said control pulse signal at each of said time intervals.
摘要翻译：一种用于控制梳理机中的条子厚度变化的方法和装置。测量从梳理机输送的条子的厚度变化，并且发出与梳理纱条的厚度变化相对应的电信号。通过比较上述电信号产生差分信号，并且以预定时间间隔间歇地创建根据差分信号的控制脉冲信号，每个所述时间间隔短于梳理长度所需的时间条子长度对应于梳理纱条厚度的长期变化。间歇地调整到梳理机的纤维簇的供给量，以便在上述时间间隔的每个时间段，通过所述控制脉冲信号，将上述控制信号朝向零减少。

6. 发明授权

US4266324A Silver weight unevenness correcting apparatus 失效
标题翻译：银重量不均匀校正装置
公开(公告)号：US4266324A
公开(公告)日：1981-05-12
申请号：US107571
申请日：1979-12-27
申请人： Junzo Hasegawa , Susumu Kawabata , Hiroshi Niimi , Yasuhiko Suzuki , Masaki Akatsuka , Takahiko Tsunekawa
发明人： Junzo Hasegawa , Susumu Kawabata , Hiroshi Niimi , Yasuhiko Suzuki , Masaki Akatsuka , Takahiko Tsunekawa
IPC分类号： D01H5/42 , D01H5/38
CPC分类号： D01H5/42
摘要： Sliver weight unevenness correcting apparatus of a feed-forward type has: a sliver weight measuring section for detecting the variations in weight of a bundle of slivers; a correcting draft device having front rollers disposed downstream of the sliver weight measuring section relative to the direction of advancement of slivers, the front rollers being rotated at a constant speed, and back rollers disposed between the sliver weight measuring section and the front rollers, the back rollers being rotated at a variable speed; a rotation detector for detecting the number of revolutions of the front rollers; an unevenness correcting circuit having a ratio circuit for operating a ratio (E.sub.0 /E.sub.1) between a reference sliver weight (E.sub.0) and the detected weight (E.sub.1) thereof, a delay circuit for delaying the speed control of the back rollers of the correcting draft device for a predetermined period of time, and a contrasting operational circuit for multiplying the ratio (E.sub.0 /E.sub.1) and a ratio (N.sub.F /k) between the number (N.sub.F) of revolutions of the front rollers and a reference draft value (k) and for producing a multiplied signal (E.sub.0 /E.sub.1 .multidot. N.sub.F /k); and a speed control circuit for producing a speed control signal responsive to the multiplied signal to control the speed of back rollers through a rotation transmitting mechanism. This arrangement enables accurate correction of sliver weight unevenness even short in wavelength in a drawing frame running at a high speed.
摘要翻译：前馈式的条子重量不均匀性校正装置具有：条子重量测量部分，用于检测条束重量的变化; 校正牵伸装置，其具有相对于条子前进方向设置在条子重量测量部分的下游的前辊，前辊以恒定速度旋转，以及设置在条子重量测量部分和前辊之间的后辊，后辊以可变速度旋转; 旋转检测器，用于检测前辊的转数; 不平坦校正电路，具有用于操作参考条子重量（E0）与检测到的重量（E1）之间的比率（E0 / E1）的比率电路，延迟电路，用于延迟校正纸张的后辊的速度控制装置，以及用于将前轮的转数（NF）与参考吃水值（k）之比（E0 / E1）和比（NF / k）之比的对比运算电路，并产生相乘信号（E0 / E1x NF / k）; 以及速度控制电路，用于响应于相乘的信号产生速度控制信号，以通过旋转传递机构来控制后滚筒的速度。这种布置使得能够精确地校正在高速运行的绘图框中甚至短波长的条子重量不均匀性。

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