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1. 发明专利

JPH10236729A DOUBLER 失效
公开(公告)号：JPH10236729A
公开(公告)日：1998-09-08
申请号：JP4072097
申请日：1997-02-25
申请人： MURATA MACHINERY LTD
发明人： UEHARA MASAO , UNO TOMOYUKI , YAMAMOTO YUHEI
IPC分类号： B65H51/015 , B65H54/02 , B65H54/32 , D01H7/02
摘要： PROBLEM TO BE SOLVED: To make a synthetic fiber yarn applicable for a doubler, make individual operation possible in each weight when a plurality of weights are provided, so that a change of shrinkage degree of an elastic yarn and a traverse angle of a winding package can be performed by a simple speed change mechanism. SOLUTION: A width of traverse, when a yarn from each yarn feeder is wound while performing a traverse in a condition doubling the yarn, is adjusted, a taper end mechanism for forming an end face of a winding package P1 in a tapered shape and a creeping mechanism for changing a width of traverse in a pulsation manner are provided. A drive source 12 of a friction roller 8 of a winding mechanism is provided in each weight, a drive source 13 of the creeping mechanism of each weight is made in common by a plurality of weights. A drive source 12 driving the friction roller 8 of the winding mechanism and an elastic yarn delivering roller 7 of the yarn feeder and the roller 7, and the friction roller 8 and a traverse cam mechanism, are respectively connected through a speed change mechanism 14, 16 rewindably winding a belt to both step pulleys.

2. 发明专利

JPH11106130A THREAD WORKING METHOD 失效
公开(公告)号：JPH11106130A
公开(公告)日：1999-04-20
申请号：JP27107797
申请日：1997-10-03
申请人： MURATA MACHINERY LTD
发明人： UEHARA MASAO , YAMAMOTO YUHEI
IPC分类号： B65H51/015 , D02G1/02 , D02G1/16 , D02G3/28 , D02G3/32
摘要： PROBLEM TO BE SOLVED: To expand the area of double twisting as far as possible by forming a multiple wound yarn with sufficient confounding irrespective of the kinds of threads. SOLUTION: A multi-filament working thread Y2 is confounded with an elastic thread Y3 by spraying compressed air from an interlace nozzle so as to form a multiple wound yarn Y1 in which threads Y2 and Y3 are separated from each other and do not loose through the release by a double twister Z. Also it is prevented that, when the multiple wound yarn Y1 is applied to the double twister Z or released from a multiple wound yarn package P1, the multiple wound yarn Y1 is separated and loosened, resulting in the cutting of thread. In addition, the application of the multiple wound yarn Y1 capable of double twisting it by the double twister is expanded irrespective of the kinds of threads.

3. 发明专利

JP2001226839A SINGLE SPINDLE-DRIVING TYPE MULTIPLE TWISTER 失效
公开(公告)号：JP2001226839A
公开(公告)日：2001-08-21
申请号：JP2000035634
申请日：2000-02-08
申请人： MURATA MACHINERY LTD
发明人： YAMAMOTO YUHEI
IPC分类号： D01H7/86 , D01H1/244
摘要： PROBLEM TO BE SOLVED: To obtain twisted yarns having a uniform yarn quality over the whole spindles by suppressing the change with time and the difference among the spindles of the unwinding tension. SOLUTION: This single spindle-driving type multiple twister has spindle motors 2 for separately driving the spindle 1 at each of the spindles 1, a rotational speed-controlling means 23 of the spindle 1 for the feedback-control of the motors 2, winding drum-driving motors 11 for separately driving the winding part of each of the spindles 1, a winding speed-controlling means 22 for the feedback-control of the motors 11, yarn tension-detecting means 14 for detecting the tensions of the traveling yarns Y, and a correcting means 24 for correcting the targeting rotational speed (targeting spindle speed) of the spindle motors 2 and the targeting rotational speed (targeting winding speed) of the winding drum-driving motors 11 based on the detected tension signals t detected by the yarn tension-detecting means 14 and the targeting value of the yarn tension.

4. 发明专利

JPH11350266A DOUBLE TWISTER AND METHOD FOR DOUBLE TWISTING 失效
公开(公告)号：JPH11350266A
公开(公告)日：1999-12-21
申请号：JP13264099
申请日：1999-05-13
申请人： MURATA MACHINERY LTD
发明人： UEHARA MASAO , YAMAMOTO YUHEI
IPC分类号： D01H7/26 , D01H7/86
摘要： PROBLEM TO BE SOLVED: To provide a double twister hardly causing uneven twisting and yarn breakage, and to provide a method for double twisting hardly causing uneven twisting and yarn breakage when carrying out the double twisting of the double yarn prepared from mutual yarns having different elongations. SOLUTION: In this double twister, a flyer 50 is provided with a boss 51 placed at the center of rotation, the first yarn guide 53 at a position opposite to the lateral face of a yarn feed package, one or more yarn guides 54, 55 placed from said first yarn guide 53 to a cylindrical unit 22, and a counter weight 56 for positioning the center of gravity of the flyer 50 at the part of said boss 51. Further, a double yarn is unwound toward a position within the width of the yarn feed package by means of the flyer 50, and the unwound yarn is guided to said cylindrical unit 22 while applying tension to the yarn by the flyer 50. Said flyer 50 has a boss 51, and the center of gravity of the flyer 50 is positioned at the part of the boss by the counter weight 56, and thereby double twisting is carried out. The use of the counter weight 56 simplifies the structure and enables the smooth rotation of the flyer 50.

5. 发明专利

JPH0978368A DOUBLE TWISTER AND DOUBLE TWISTING 失效
公开(公告)号：JPH0978368A
公开(公告)日：1997-03-25
申请号：JP25184695
申请日：1995-09-04
申请人： MURATA MACHINERY LTD
发明人： UEHARA MASAO , YAMAMOTO YUHEI
IPC分类号： D01H7/86
摘要： PROBLEM TO BE SOLVED: To provide a method for double twisting of doubled yarn in which the unevenness of twisting or yarn breakage is hardly caused when carrying out the double twisting of the doubled yarn prepared from mutual yarns having different elongations. SOLUTION: This double twister is obtained by installing the first yarn guide part 53 at a position opposite to the lateral face of a yarn feed package P in a flyer 50 of the double twister capable of twisting yarn twice in a process for unwinding the yarn from the yarn feed package P through the flyer 50 freely rotating around a cylindrical unit 22 stood from the center of the yarn feed package P, leading the unwound yarn from the cylindrical unit 22 to a rotating disk 7 arranged under a stationary board 9, passing the yarn along the rotating disk 7 and leading the yarn to an upward balloon guide 39. The resultant doubled yarn is unwound toward a position (point D) located within a width of the yarn feed package P with the flyer 50 so as to be led to the cylindrical unit 22 while applying a tension to the yarn with the flyer 50. Thereby, the separation of the doubled yarn by the slackness and crossing of the unwound yarn on the package end face are eliminated.

6. 发明专利

JP2001040534A SINGLE SPINDLE DRIVING TYPE MULTIPLE YARN TWISTER 失效
公开(公告)号：JP2001040534A
公开(公告)日：2001-02-13
申请号：JP20574199
申请日：1999-07-21
申请人： MURATA MACHINERY LTD
发明人： YAMAMOTO YUHEI
IPC分类号： D01H7/86 , D01H1/34
摘要： PROBLEM TO BE SOLVED: To uniformly maintain a twist count applied to a yarn while preventing the dispersion of the twist counts between spindles and in the process of time. SOLUTION: In this single spindle driving type multiple yarn twister comprising spindles each provided with a motor 2 for driving the spindle and ballooning a yarn Y by rotation of the spindle 1 to carry out twisting and processing, the rotative speed of a rotation roller 12 to be brought into contact with the yarn Y is detected as a yarn speed by a rotation sensor 14. The rotative speed of the motor 1 for driving the spindle is controlled based on a pulse signal from the rotation sensor 14 by a control device 16 for each spindle individually.

7. 发明专利

JPH1181054A MULTIPLEX TWISTER 失效
公开(公告)号：JPH1181054A
公开(公告)日：1999-03-26
申请号：JP24362897
申请日：1997-09-09
申请人： MURATA MACHINERY LTD
发明人： KURODA YOSHIJI , YAMAMOTO YUHEI , TOYOSHIMA TAKAO
IPC分类号： B65H54/28 , D01H1/10 , D01H1/20 , D01H1/28 , D01H1/36 , D01H7/36 , D01H7/86
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of a failure in traversing and ribbon-like (or rope-like) winding from coming into being throughout a period of a shutdown process even in the case of driving both a traversing gear and a drum with a common drive by varying a traversing speed of the traversing gear with an infinitely variable gear so as to synchronize it with the revolution of the drum. SOLUTION: This multiplex twister 1 has a spindle 2 and a winder 3 in each working station. A drum-driving mechanism B and a traversing gear- driving mechanism C are driven by a drive motor 5 being an induction motor through a variable speed belt mechanism 12, a speed reducer 13 and an infinitely variable gear 14. A twisted yarn is wound into a package P while applying the disturbing function to the mechanism C. And when trying to stop the twister, the traversing speed of a traversing gear 11 is reduced under the maintenance of a predetermined relation with the revolution speed of the drum 9 to make both the traversing gear and the drum stop simultaneously.

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