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1. 发明专利

JP2531412B2 失效
公开(公告)号：JP2531412B2
公开(公告)日：1996-09-04
申请号：JP1256188
申请日：1988-01-25
申请人： MURATA MACHINERY LTD
发明人： UEDA YUTAKA , YOSHIKAWA SHU
IPC分类号： B65G47/49 , B07C5/342 , B65H67/06

2. 发明专利

JPH0428811B2 失效
公开(公告)号：JPH0428811B2
公开(公告)日：1992-05-15
申请号：JP1614788
申请日：1988-01-27
申请人： MURATA MACHINERY LTD
发明人： MATSUI ISAMU , UEDA YUTAKA
IPC分类号： D01H1/24 , D01H1/30 , D01H1/34 , D01H7/86 , D01H13/32

3. 发明专利

JPH0314927B2 失效
公开(公告)号：JPH0314927B2
公开(公告)日：1991-02-27
申请号：JP12311987
申请日：1987-05-20
申请人： MURATA MACHINERY LTD
发明人： MATSUI ISAMU , UEDA YUTAKA
IPC分类号： D01H7/86 , D01H1/24 , D01H1/241 , D01H1/32 , D01H13/20 , D01H13/32

4. 发明专利

JPH0240578B2 失效
公开(公告)号：JPH0240578B2
公开(公告)日：1990-09-12
申请号：JP9876386
申请日：1986-04-29
申请人： MURATA MACHINERY LTD
发明人： UEDA YUTAKA , KAWAMURA SHUZO
IPC分类号： B65H59/38 , B65H54/40

5. 发明专利

JPH01192833A APPARATUS FOR SETTING TWIST NUMBER IN DOUBLE TWISTER 失效
公开(公告)号：JPH01192833A
公开(公告)日：1989-08-02
申请号：JP1614788
申请日：1988-01-27
申请人： MURATA MACHINERY LTD
发明人： MATSUI ISAMU , UEDA YUTAKA
IPC分类号： D01H1/24 , D01H1/30 , D01H1/34 , D01H7/86 , D01H13/32
摘要： PURPOSE:To provide a double twister furnished with a means for inputting a preset twist number, a means for measuring the rotational speed of a spindle, a means for measuring the yarn speed, a particular operation means and a speed-varying means operated by the output of the above means, capable of accurately changing the twisting number and enabling the production of a variety types of products in small quantities. CONSTITUTION:When a desired twisting number (T) is inputted through an input board 64, a yarn speed (Y) is calculated in a control board 65 according to the formula Y=2S/T based on the twisting number (T) and the rotational speed (S) of the spindle. The output of a control motor 58 of a variable speed belt apparatus 50 is controlled in such a manner as to attain a yarn speed equal to the calculated value.

6. 发明专利

JPS6434875A TRAVEL CONTROL METHOD FOR DOFFING CARRIAGE 失效
公开(公告)号：JPS6434875A
公开(公告)日：1989-02-06
申请号：JP18551487
申请日：1987-07-27
申请人： MURATA MACHINERY LTD
发明人： UEDA YUTAKA , WAKABAYASHI MASAHIRO , NAKADE KAZUHIKO , IKEMOTO TOMONARI
IPC分类号： B65H67/04
摘要： PURPOSE:To shorten the doffing waiting time of each weight by deciding, in consideration of the stand-by position of a doffing carriage, which weight, a predicted next full pipe weight or an already full charged weight, is indicated to the doffing carriage as a doffing weight. CONSTITUTION:A CPU 12 at an automatic winder control unit 11 has a length fixing device watching the rolling away length of the package of each rolling away unit, and detects a fully charged weight and lights a full charge indication pilot lamp, and at the same time, predicts a next fully charged weight. Also, the signal of a weight NO. detection sensor 17 is inputted from a doffing carriage AD10, and a distance l1 from AD10 to the fully charged weight and a travel time T1, a distance l2 from AD10 to the next fully charged weight and a time TF when the next fully charged weight is in a full state, are sought. And the fully charged weight when it is l1 l2 and T1>TF and the fully pipe spindle when it is l1>l2 and T1

7. 发明专利

JPS63306169A ENDING METHOD FOR AUTOMATIC WINDER 失效
公开(公告)号：JPS63306169A
公开(公告)日：1988-12-14
申请号：JP14135887
申请日：1987-06-08
申请人： MURATA MACHINERY LTD
发明人： UEDA YUTAKA , IKEDA ISAMU , SUZUKI TADASHI
IPC分类号： B65H69/00 , B65H69/06 , D01H4/48
摘要： PURPOSE:To efficiently carry out an ending operation by detecting that the yarn end on a bobbin side and the yarn end on a package side are both drawn out by means of a yarn detector and starting a drum only at the time of detecting the draw-out of both yarn ends. CONSTITUTION:If either of lower yarn 11, i.e., the yarn on a bobbin 10 side or upper yarn, i.e., the yarn of a package 12 side fails to be drawn out, a drum 15 is not started. The drum 15 is started only when the draw our of both yarns 11, 13 is detected by a yarn detector 14. The ending is always unsuccessful if even either of the yarn ends 11, 13 fails to be drawn out. Hence, by prohibiting the start of the drum 15 at this time, it can be prevented that the yarn end is beaten against the drum 15 disturbing the yarn on the package 12 side or that the pick finding of yarn fails for some time in the second operation which is continuously carried out. On the other hand, when both yarn ends 11, 13 are drawn out, the ending operation proves successful with an extremely high probability.

8. 发明专利

JPS63288227A DEVICE FOR DETECTING ABNORMALITY IN ROTATION OF SPINDLE 失效
公开(公告)号：JPS63288227A
公开(公告)日：1988-11-25
申请号：JP12311987
申请日：1987-05-20
申请人： MURATA MACHINERY LTD
发明人： MATSUI ISAMU , UEDA YUTAKA
IPC分类号： D01H7/86 , D01H1/24 , D01H1/241 , D01H1/32 , D01H13/20 , D01H13/32
摘要： PURPOSE:To obtain the titled device, consisting of a means for detecting the number of revolutions of a spindle in a double twister, means for comparing the detected results with a given number of revolutions and display plate for indicating an abnormality in rotation on the basis of the comparison results and capable of providing yarns without dispersion in yarn twisting. CONSTITUTION:A magnetic sensor 10 for detecting rotation of a detectable plate 8 mounted to the bottom of a rotating disk 4 integrally fixed to a spindle 2 is provided as a means for detecting the number of revolutions of the spindle 2 of a double twister 1 for introducing a yarn (Y) taken out of a yarn feed bobbin 6 from the top of a tension device 12 and twisting the yarn (Y) by rotation of the spindle 2 and rotating disk 4. An output from an input output circuit 28 of the sensor 10 is compared in a (ratio) comparator 32 as a means for comparing the detected results by the detecting means with a given number of revolutions and the comparison results are inputted to an arithmetic circuit 33 and indicated on a display plate 35 to detect an abnormality in rotation.

9. 发明专利

JPS62285876A WINDING UNIT 失效
公开(公告)号：JPS62285876A
公开(公告)日：1987-12-11
申请号：JP13101686
申请日：1986-06-05
申请人： MURATA MACHINERY LTD
发明人： UEDA YUTAKA , KAWAMURA SHUZO , YAMAUCHI TOSHIO , ICHIBA YOSHIYUKI
IPC分类号： B65H59/00 , B65H63/024 , D01H20060101
摘要： PURPOSE:To make an amount of cut yarn to be wound around a drum as smaller as possible, by dispoing a tension sensor in a yarn traveling passage between a bobbin on the yarn feed side and a package on the yarn winding side. CONSTITUTION:When traveling yarn is cut by high tension, high tension outside of a permissible range is applied to the yarn and a low tension outside of a permissible range is applied just after it has been cut. Therefore, when a tension sensor 7 senses the high tension, the low tension or both the high and low tension, a cutter 16 disposed in a yarn passage is actuated to cut the yarn. With the arrangement, when the yarn is cut at d drum, only a yarn of a length corresponding to a length between the cutter 16 and the drum 8 is wound around the drum 8 and no yarn is further taken out from a bobbin 2 even if the yarn would be wound around the drum. This is because that the yarn is forcibly cut at an intermediate position between the bobbin 2 and the extreme end of the yarn on a bobbin side.

10. 发明专利

JPS62255366A YARN DEFECT DETECTING METHOD 失效
公开(公告)号：JPS62255366A
公开(公告)日：1987-11-07
申请号：JP9614486
申请日：1986-04-25
申请人： MURATA MACHINERY LTD
发明人： UEDA YUTAKA , YAMAUCHI TOSHIO
IPC分类号： B65H63/06
摘要： PURPOSE:To detect the extent of yarn defect length accurately as well as to prevent the occurrence of unnecessary end breakage, by automatically compensating the setting reference value to be compared with detection value of the yarn defect length in response to a variation in yarn speed, and discriminating a yarn defect. CONSTITUTION:During take-up operation of a yarn filament Y out of a spinning bobbin 1 onto a package 4, a thickness variation in yarn to be passed through a slub catcher 2 is always inputted into a clearer controller 5 as an electric signal 6 and compared with the reference value. When it is out of this reference value, it is considered that a yarn defect has been passed through, and an operating signal 8 is outputted to a cutter driver 7 at once, performing yarn cutting, and the controller 5 outputs a stop command of a drum driving motor 9. In addition, rotation of a traverse drum 3 is detected by a pulse generator 14, and with the signal 18, a constant sizing mechanism 17 finds a yarn speed, compensating the reference value corresponding to yarn defect length, thus it discriminates the yarn defect. Doing like this, the yarn defect length is accurately detected and a quality package is securable without entailing any unnecessary yarn cutting work.

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