• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    WEFT BREAK DETECTION DETECTION DEVICE IN A FLUID JET Loom Into Which Multiple Weft Threads Are SIMULTANEOUSLY INSERTED A weft yarn break detection device is provided in a fluid jet loom which has several weft thread inserters. Each of the weft inserters has a weft measuring drum equipped with a balloon sensor. The ball sensors are electrically connected to a controller which has an element for determining whether or not a weft yarn break is occurring based on a weft yarn detection signal transmitted by each of the balloons. balloon catchers.
    公开号:BE1021171B1
    申请号:E2013/0005
    申请日:2013-01-08
    公开日:2015-05-26
    发明作者:Yoichi Makino；Fumio Yasuoka；Taijirou Okuda
    申请人:Kabushiki Kaisha Toyota Jidoshokki；
    IPC主号:
    专利说明:

    DEVICE FOR DETECTING FRAME WIRE BREAK IN A FLUID JET WIRE MACHINE IN WHICH MULTIPLE FRAME WIRES ARE SIMULTANEOUSLY INSERTED
    BASIS OF THE INVENTION
    The present invention relates to a device for detecting a weft yarn break in a fluid jet type loom in which a plurality of weft yarns are simultaneously inserted into a host of warp yarns.
    A fluid jet type loom is known in which two or more weft yarns are simultaneously inserted into a host of warp yarns to weave a fabric having a high strength. An example of such a fluid jet loom is disclosed in Japanese Unexamined Patent Application Publication 2002-155452. The loom is a multiple weft insertion weaving loom in which two weft yarns extracted from two weft yarn windings are introduced into a weft measuring and storing device and then inserted simultaneous from a single weft insertion nozzle in a host of warp yarns.
    When a weft yarn break occurs in a normal fluid jet type loom into which a single weft yarn is inserted into a host of warp yarns, the weft break can be detected using a tip sensor provided downstream from the direction of insertion of the weft yarn leading to the shutdown of the loom. However, when one weft yarn is broken while the other weft yarn is normal in the multiple weft yarn insertion type loom mentioned above, the weft breakage can not be detected. using a tip sensor as is the case in the normal loom.
    The loom disclosed in Publication No. 2002-155452 is equipped with a weft breakage detecting device having photoelectric detectors for the respective weft threads. The detector is provided between the weft yarn winding and a yarn guide through which the weft yarns extracted from the respective weft yarn windings are guided towards the weft yarn storage and measurement device. The weft yarn extracted from the weft yarn winding forms a balloon. The detector detects such a balloon and transmits a weft detection signal to a controller. For example, when the weft yarn extracted from a weft yarn winding is broken, no yarn detection signal is transmitted by the associated detector. The controller then determines that a weft break has occurred and transmits a control signal to stop the loom.
    In the multi-weft insertion type weaving loom disclosed in Publication No. 2002-155452, wherein the two weft threads are inserted from the weft insertion nozzle into the shed With warp yarns, it may be difficult to generate a force that is sufficient to propel the weft yarns, especially in the case where a special weft yarn such as a thick weft yarn is used. The maximum fluid pressure such as air injected from the nozzle is limited, resulting in a reduction in the versatility of the loom. To prevent this phenomenon, for example in Japanese Unexamined Patent Publication 61-646, there is provided a method for the simultaneous insertion of two weft yarns by using two weft insertion nozzles in one trade. weaving machine of the water jet type.
    In the water jet loom disclosed in Publication 61-646, the nozzles are fed with pressurized water from a water supply pump. The weft yarns are inserted simultaneously from the respective nozzles in a host of warp yarns under the influence of the water jet. The use of the nozzles for the respective weft yarns provides a force that is sufficient to propel the weft yarns for simultaneous insertion purposes, unlike in the case of the publication 2002-155452. However, as is the case in the publication 2002-155452, when one of the two weft threads is broken, the breakage of the weft thread can not be detected using a tip sensor, as is the case. in the normal loom. Thus, a detector as disclosed in Publication No. 2002-155452 is needed for the detection of a weft break.
    In the weft yarn break detecting device disclosed in the publication 2002-155452, when a weft break appears between the weft insertion nozzle and the storage and measuring device of the weft yarn, since the weft yarn presumably continues to be stored by the weft yarn storage and measuring device, the weft yarn is normally extracted from the weft yarn winding and therefore the break weft thread can not be detected. In particular, in the case where a tandem nozzle is provided between the weft insertion nozzle and the frame wire storage and measurement device, since the weft wire receives the pulling force emitted by the tandem nozzle, it is impossible to detect a weft break that occurs between the weft insertion nozzle and the tandem nozzle.
    The present invention relates to providing reliable detection of a weft yarn break in a fluid jet loom in which a plurality of weft yarns are inserted simultaneously.
    SUMMARY OF THE INVENTION
    According to one aspect of the present invention, a weft breakage detection device is provided in a fluid jet loom which has a plurality of weft insertion devices for the simultaneous insertion of a plurality of threads. frame. Each of the different weft insertion devices has a weft yarn winding, a weft yarn insertion nozzle and a weft yarn measuring drum equipped with a balloon sensor. The balloon sensors of the different weft insertion devices are electrically connected to a controller provided in the fluid jet loom and the controller has a determining element to determine whether or not a weft yarn break occurs based on a weft yarn detection signal transmitted by each balloon sensor. Other aspects and advantages of the invention will become apparent from the following description when taken in conjunction with the accompanying drawings illustrating by way of example the principles of the invention.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Fig. 1 is a schematic plan view of an air jet loom having a plurality of weft insertion devices for simultaneous insertion of a plurality of weft yarns; Fig. 2 is a graph showing a pattern of weft detection signals when the weft insertion is proceeding normally; Fig. 3 is similar to Fig. 1, but represents an example of a weft break that occurs in one of the weft insertion devices; Fig. 4 is a graph showing a pattern of weft detection signals in the case of the weft break in Fig. 3; Fig. 5 is similar to Fig. 1, but shows another example of a weft break that occurs in one of the weft insertion devices; Fig. 6 is a graph showing a pattern of weft detection signals in the case of the weft breakage of FIG. 5.
    DETAILED DESCRIPTION OF THE EMBODIMENTS
    Hereinafter, the embodiment of a weft yarn breakage detection device is described in a fluid jet loom according to the present invention with reference to FIGS. 1 to 6. The fluid jet of the embodiment is an air jet loom in which a plurality of weft yarns are simultaneously inserted via an air jet. It should be indicated that the terms "upstream" and "downstream" that are used in the following description are defined with respect to the insertion direction of the weft yarn.
    Referring to Figure 1, the air jet loom has two weft insertion devices 1, 2 each for inserting a weft yarn and having a similar structure. Identical reference numerals are used for identical components of the weft insertion devices 1, 2, and the description of such components will be made only for the weft insertion device 1. The insertion device weft yarn 1 has a weft insertion nozzle 4 on a wing 3 of the air jet loom which oscillates back and forth with the wing 3. A tandem nozzle 5, a weft yarn measuring drum 6 and a weft yarn winding 7 are provided upstream of the weft insertion nozzle 4 and are permanently mounted on a frame (not shown) of the jet loom air or on a frame (also not shown) disposed on the ground.
    The weft insertion nozzle 4 and the tandem nozzle 5 are supplied with compressed air from an air reservoir (not shown) via a selection valve (not shown) which is activated. in response to a control signal from a controller 12 provided in the air jet loom. Compressed air is injected from the weft insertion nozzle 4 and from the tandem nozzle 5 to insert a weft yarn Y1 into a host of warp yarns. The weft insertion weft insertion nozzle 4 of the weft insertion device 2 is oriented so that its nozzle end comes to be disposed near the end of the weft insertion nozzle 4. of the weft insertion device 1. The weft thread unwound and extracted from the weft winding 7 of the weft insertion device 2 is designated by the reference symbol Y2.
    The weft measuring drum 6 includes a stationary drum 8, a winding tube 9 rotatable about the drum 8, an electromagnetically driven pin 10 which is movable towards and away from the outer surface of the drum 8 and a photoelectric balloon sensor 11 which detects a balloon formed by the weft yarn Y1 extracted from the drum 8. The winding tube 9 is driven by an electric motor (not shown) provided in the weft measuring drum 6, so that the weft yarn Y1 is extracted from the weft yarn winding 7 and is wound on the outer surface of the drum 8.
    In response to a control signal from the controller 12 which consists of a computer, the pin 10 deviates from the outer surface of the drum 8 to thereby release the weft yarn Y1 then wound on the outer surface of the drum 8 thus triggering the insertion of the weft thread. When inserting the weft yarn, the weft yarn Y1 is extracted from the drum 8 while forming a balloon. The balloon sensor 11 is electrically connected to the controller 12 and transmits a weft detection signal to the controller 12 when such a balloon of the weft yarn Y1 is detected by the balloon sensor 11. The controller 12 counts the signal signals. detecting the weft yarn emitted by the round balloon sensor and transmitting a control signal to the pin 10 when the calculated number of the weft detection signal reaches a predetermined value (three in the present embodiment). In response to a command issued by the controller 12, the pin 10 moves toward the outer surface of the drum 8 to contact the weft yarn Y1, thereby terminating insertion of the weft yarn.
    The counting of the balloons by the balloon sensor 11 is carried out, not for the detection of the existence of a weft yarn Y1, but for the measurement of a predetermined length of the weft yarn Y1 which represents a function related to inserting the weft yarn into an air jet loom. When the insertion of the weft yarn takes place normally, the balloon sensor 11 transmits weft detection signals S2 in the form of a pulse signal at a regular interval as shown in FIG. weft detection signals S2 for the weft yarn Y1 when the weft thread insertion takes place normally is stored beforehand in the memory 13 of the controller 12. Such a pattern of the weft detection signals S2 will be hereinafter referred to as "ground of reference".
    In the present embodiment, in the reference pattern for the weft yarn Y1, the weft detection signals S2 appear at the time T1 and also at the time interval T2 with respect to the forward signal S1 transmitted by a signal. encoder (not shown) provided in a main shaft (not shown) of the air jet loom as shown in Fig. 2. The reference pattern for the weft yarn Y2 is similar to that of the weft yarn Y1. The controller 12 furthermore has a comparator 14 which compares the pattern of the weft detection signals S2 transmitted by the balloon sensor 11 during the commissioning of the air jet loom with the reference pattern and a determining element 15 which determines whether a weft breakage occurs based on the result of the comparison in the comparator 14. When the presence of a weft break is recognized, the determining element 15 may transmit a control signal for stopping the air jet loom. The operations performed by the comparator 14 and by the determination element 15 are stored in the form of a program in the memory 13.
    The weft insertion devices 1, 2 are configured to work simultaneously. As a result, the weft yarns Y1, Y2 are simultaneously inserted from weft yarn insertion nozzle 4 into a weft yarn guiding passage 18 of a comb 17 in a host of warp yarns 16. and sustained in their flight through the crowd by jets of air emitted by the secondary nozzles 19. At the end of the insertion of the weft thread, the weft yarns Y1, Y2 are packed by the reign 14 and are cut by the cutting device 20 for weaving a fabric 21.
    Hereinafter, the manner of detecting a weft breakage will be described using the balloon sensors 11 of the weft insertion devices 12 during the weaving operation of the air jet loom. Figure 1 shows the air jet loom during a normal operation. During the weaving operation of the air jet loom, the controller 12 causes the pins 10 of the weft yarn measuring drums 6 of the respective weft inserting devices 12 s outside of their associated drums 8 to release the stored weft yarns Y1, Y2 when a given period of time has elapsed since the moment corresponding to the transmission of the signal before S1 (as can be seen in FIG. ). The weft yarns Y1, Y2 are extracted from the drums 8 by means of the air jet emitted by the respective tandem nozzles 5 and by the weft insertion nozzles 4, before being inserted into the crowd. of warp threads 16.
    The weft yarns Y1, Y2 released by the spindles 10 of the drums 8 form balloons 8. The balloon sensors 11 detect said balloons and transmit the weft detection signals S2 to the controller 12. The controller 12 counts the signal signals. detecting the weft yarn S2 as a pulse signal for the weft yarns Y1, Y2 (as can be seen in FIG. 2). When a predetermined number of pulse signals, for example three pulse signals in the present embodiment, are counted, the controller 12 causes the pins 10 to move away from the drums 8 to contact the wires. weft Y1, Y2, so that the insertion of the weft son is completed.
    Then, the controller 12 causes the comparator 14 to read the reference pattern previously stored in the memory 13 and compares the patterns of the weft detection signals S2 for the respective weft yarns Y1, Y2 shown in FIG. on the ground of reference. When the time T1 and the time interval T2 in the pattern of the weft detection signal S2 are identical to those of the reference pattern, the determining element 15 determines that the insertion of the weft yarn has occurred. performed in a normal manner and allows the air jet loom to continue its weaving operation.
    FIG. 3 shows the case of a breakage of the weft thread Y2 between the tandem nozzle 5 and the weft measuring drum 6 in the weft insertion device 2, but in the absence a breakage of the weft yarn Y1 in the weft insertion device 1, so that the weft insertion device 1 operates in a normal manner. The pattern of the weft detection signals S2 for the weft yarn Y1 as shown in FIG. 4 is compared to the reference pattern via the comparator 14 and a normal pattern is determined via the determination element 15. However, in the weft insertion device 2, since the broken weft yarn Y2 collapses with respect to the drum 8, no balloon is formed and therefore no weft detection signal S2 is transmitted by the balloon sensor 11.
    The frame yarn detection signal-free pattern S2 for the weft yarn Y2 as shown in FIG. 4 is detected by the controller 12 and is compared to the reference pattern by the comparator 14. Since the pattern without the signal of detection of weft yarn S2 for the weft yarn Y2 is different from the reference pattern when compared by the comparator 14, the determining element 15 determines a breakage of the weft yarn Y2 and transmits a control signal to stop the air jet loom. Such a pattern without a weft detection signal S2 can also be observed when the weft yarn Y2 is broken between the weft measuring drum 6 and the weft yarn winding 7. Thus, the element determination 15 may determine a weft breakage occurs upstream of the tandem nozzle 5 with respect to the weft insertion direction in the weft insertion device 2 in which the pattern compared to the reference pattern is free of S2 weft detection signal.
    FIG. 5 shows the case in which the weft yarn Y2 is broken between the weft insertion nozzle 4 and the tandem nozzle 5 in the weft insertion device 2, but in which no breakage of the weft yarn Y1 in the weft insertion device 1, so that the weft insertion device 1 is working normally. The pattern of the frame lead detection signals S2 for the weft yarn Y1 as shown in FIG. 6 is compared to the reference pattern by the comparator 14 and is determined to be normal by the determination element 15.
    In the weft insertion device 2, in which the weft yarn Y2 is broken, while being held by the tandem nozzle 5, the weft yarn Y2 is extracted from the drum 8 by the air jet emitted by the tandem nozzle 5. Thus, the weft yarn Y2 forms balloons, so that weft detection signals S3 as shown in FIG. 6 are transmitted as a pulse signal by the sensor. balloons 11 to the controller 12 to be counted. Since the weft yarn Y2 receives no pulling force through the weft insertion nozzle 4, the extraction rate of the weft yarn Y2 from the drum 8 decreases. In the pattern of the weft detection signals S3 as shown in FIG. 6, the moment T3 is delayed by the value ΔΤ with respect to the moment T1 in the weft detection pattern S2 for the weft yarn Y1, and also the time interval T4 is greater than the time interval T2 in the weft detection pattern S2 for the weft yarn Y1. Since the pattern of the weft detection signals S3 for the weft yarn Y2 is different from the reference pattern with respect to the corresponding moment and the time interval when the comparison is made by the comparator 14, the determining element 15 determines a breakage of weft yarn Y2 and transmits a control signal to stop the air jet loom. The determining element 15 may determine a weft breakage occurs between the tandem nozzle 5 and the weft insertion nozzle 4 in the weft insertion device 2 in which the pattern compared to the reference pattern is different from the reference pattern with respect to the timing corresponding to the appearance of the weft detection signal S3 and also with respect to the time interval of the weft detection signal S3. The determination of a weft break can be made based on whether or not the pattern of the weft detection signals S3 for the weft yarn Y2 is different from the reference pattern, that either for the moment corresponding to its appearance or for the corresponding time interval.
    As described above, the embodiment of the weft breakage detection device according to the present invention wherein the controller 12 is operative to detect a weft breakage using the pattern of the detection signals of the weft thread S2, S3 transmitted by the balloon sensor 11 allows reliable detection of any weft warp breakage that occurs at any point between the weft insertion nozzle 4 and the weft insertion nozzle 4. In particular, in the case where each weft insertion device 12 has a tandem nozzle 5, whereas a weft breakage occurs between the tandem nozzle 5 and the weft thread insertion nozzle 4, while the weft yarns Y1, Y2 continue to be extracted from the drum 8 as is the case in a normal operation, the present embodiment reliably detects such weft breakage by comparing the reference pattern to the pattern of the weft detection signals S3 finally to recognize any difference between them. The use of weft insertion nozzles 4 for the respective weft yarns Y1, Y2 provides a force which is sufficiently intense to propel the weft yarns Y1, Y2 to achieve simultaneous insertion. It also makes it possible to use various types of weft threads giving rise to a better versatility of the loom.
    It will be understood that the present invention is not limited to the embodiment described above, and may be modified in various ways as indicated below by way of example, without departing from the scope of the present invention. invention. (1) The present invention is applicable not only to a loom having two sets of weft insertion devices as is the case in the previous embodiment, but also to a loom having three sets or more of weft insertion devices for simultaneous insertion of three or more weft threads. (2) Each of the weft insertion devices 1, 2 need not necessarily have the tandem nozzle 5. (3) The weft detection signals S2 of the reference pattern need not necessarily appear at the moment T1 and at the time interval T2. For example, a predetermined number of weft detection signals S2 of the reference pattern may occur in a given period of time from the moment corresponding to the transmission of the signal before S1. In this case, it is determined that a weft yarn break occurs in either one of the weft insertion devices 1,2. In both when the indicated number of weft detection signals S2 is not detected by the balloon sensor 11 in the given period of time. (4) In the preceding embodiment, the determining element 15 determines the presence of a break in the weft yarn based on the comparison by the comparator 14 between the reference pattern previously stored in the memory 13 and the pattern of the weft detection signals S2, S3 transmitted by the balloon sensors 11 of the respective weft insertion devices 1, 2. Alternatively, the determining member 15 can determine that a break of wire in the presence of a predetermined difference between the patterns of the weft detection signals S2, S3 compared to one another by the comparator 14. In this case, the patterns of the wire detection signals of the wefts S2, S3 transmitted by the balloon sensors 11 respective weft insertion devices 1,2 represent the reference patterns for one and the other. (5) The determining element 15 may be configured only to issue a warning upon a weft break instead of directly stopping the loom. (6) The balloon sensor 11 may be provided not only with a photoelectric sensor but also with any other appropriate electrical or mechanical sensor. (7) The present invention is applicable not only to an air jet loom but also to a water jet loom.
    权利要求:
    Claims (4)
    [1]
    A weft yarn break detecting device in a fluid jet loom which has a plurality of weft insertion devices for the simultaneous insertion of a plurality of weft yarns, each of the different weft insertion devices. weft yarn having a weft yarn winding, a weft yarn insertion nozzle and a weft yarn measuring drum equipped with a balloon sensor, characterized in that the balloon sensors of the different yarn insertion of weft yarn are electrically connected to a controller provided in the fluid jet loom and the controller has a determining element for determining whether or not a weft breakage occurs in based on a weft detection signal transmitted by each balloon sensor.
    [2]
    The weft break detecting device according to claim 1, wherein the controller has a memory for storing a reference pattern of the weft detection signal when the weft insertion is proceeding normally and has a comparator for comparing the pattern of the weft detection signal to the reference pattern, the determining element determining that a weft break occurs in the weft insertion device when the pattern compared to the reference pattern by the comparator is different from the reference pattern.
    [3]
    The weft yarn break detecting device according to claim 2, wherein the weft inserting device has a tandem nozzle between the weft insertion nozzle and the thread measuring drum. frame, the determining element determining that a weft breakage occurs upstream of the nozzle in tandem with respect to the weft insertion direction when the pattern compared to the reference pattern is free of weft detection.
    [4]
    A weft yarn break detecting device according to claim 2, wherein the weft inserting device has a tandem nozzle between the weft insertion nozzle and the thread measuring drum. the determination element determining that a weft break occurs between the tandem nozzle and the weft insertion nozzle when the pattern compared to the reference pattern differs from the reference pattern with respect to the moment corresponding to the occurrence of the weft detection signal or the interval corresponding to the weft detection signal.
    类似技术:
    公开号 | 公开日 | 专利标题
    CN101376474B|2012-06-20|Method for controlling the tension of the yarn unwinding, and apparatus for carrying out such method
    BE1005204A3|1993-05-25|Method and apparatus for preventing the generation of a bar in weaving loom injection.
    JP6135731B2|2017-05-31|Method of monitoring weft flying condition in air jet loom
    BE1021171B1|2015-05-26|DEVICE FOR DETECTING FRAME WIRE BREAK IN A FLUID JET WIRE MACHINE IN WHICH MULTIPLE FRAME WIRES ARE SIMULTANEOUSLY INSERTED
    BE1024064B1|2017-11-10|A method of detecting a weft yarn in a jet loom of the air jet type.
    KR20070070180A|2007-07-03|Thread feeding device with return operation
    FR2568277A1|1986-01-31|WEAVING EQUIPPED WITH A SYSTEM FOR ADJUSTING THE LAUNCH OF THE FRAME
    BE1023604B1|2017-05-12|DEVICE FOR DETECTING FRAME WIRE FOR AN AIR JET TYPE WEAVING
    JP6281475B2|2018-02-21|Weft detection method in air jet loom
    BE1026923B1|2021-02-22|AIR JET TYPE WEAVING LOBBY INCLUDING A WEFT DETECTION APPARATUS
    JP6558348B2|2019-08-14|Weft running state detection device for air jet loom
    BE1006086A4|1994-05-10|Business jet fluid and method to ensure its functioning.
    CH663970A5|1988-01-29|WEAVING MACHINE EQUIPPED WITH A WEFT LAUNCH CONTROL DEVICE.
    BE1018921A5|2011-11-08|APPARATUS FOR ADJUSTING THE INSERTION OF THE FRAME WIRE FOR A JET WEAVING.
    US5345975A|1994-09-13|Multiple weft removing devices for a loom
    FR2642769A1|1990-08-10|DEVICE FOR DETECTING FRAME WIRE DEFECTS IN A WEAVING MACHINE
    FR2542335A1|1984-09-14|METHOD AND DEVICE FOR REMOVING, ON FABRICS, DEFECTS RESULTING FROM THE STOPPING OF THE WEAVING MACHINE
    JP2003129357A|2003-05-08|Method and apparatus for detecting weft yarn breakage of fluid jet loom
    JP2006299478A|2006-11-02|Weft unwinder of storage drum of fluid jet loom
    JPH0598539A|1993-04-20|Control device of weft inserting in jet loom
    EP3498902B1|2021-03-10|Method for diagnosing weft insertion in air-jet loom
    JP6447582B2|2019-01-09|Weft detection method and weft detection device for air jet loom
    JP2587961B2|1997-03-05|Weft length measuring method of weft insertion device
    FR3033322B1|2019-09-13|METHOD AND DEVICE FOR DETECTING THE END OF DEVIDING OF A FILIFORM ELEMENT
    JP2009249804A|2009-10-29|Weft-tucking device of jet loom
    同族专利:
    公开号 | 公开日
    JP2013147756A|2013-08-01|
    JP5821646B2|2015-11-24|
    CN103205849B|2015-03-04|
    CN103205849A|2013-07-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0354300A2|1988-08-06|1990-02-14|Nissan Texsys Co., Ltd.|Weft treatment system and method for fluid jet loom|
    EP0494051A1|1990-12-29|1992-07-08|Kabushiki Kaisha Toyoda Jidoshokki Seisakusho|Weft handling apparatus in a jet loom|
    JPH0978407A|1995-09-07|1997-03-25|Nissan Tecsys Kk|Device for detecting abnormality of yarn feeding of loom|
    JP2002227061A|2001-02-01|2002-08-14|Tsudakoma Corp|Detector for yarn breakage state of loom|
    WO2007057217A1|2005-11-21|2007-05-24|Picanol N.V.|Method for introducing a weft thread in an air weaving machine and air weaving machine|
    EP2163670A1|2008-09-12|2010-03-17|Picanol N.V.|Method for controlling transportation of a weft thread through a shed|
    DE3862670D1|1987-04-08|1991-06-13|Sulzer Ag|METHOD FOR THE OPERATION OF A Weft Thread Storage Device For A Weaving Machine.|
    JP3278874B2|1991-10-09|2002-04-30|株式会社豊田自動織機|Weft insertion control device in jet loom|
    JP3354490B2|1997-06-16|2002-12-09|津田駒工業株式会社|Weft processing equipment|
    JP2000073261A|1998-08-28|2000-03-07|Murata Mach Ltd|Fluid jet type loom|
    JP2001181945A|1999-12-27|2001-07-03|Tsudakoma Corp|Weft yarn sensor abnormality-detecting device|
    JP3630368B2|2000-11-15|2005-03-16|津田駒工業株式会社|Yarn breakage detection device|
    JP2003129357A|2001-10-22|2003-05-08|Tsudakoma Corp|Method and apparatus for detecting weft yarn breakage of fluid jet loom|
    JP2003221747A|2002-01-23|2003-08-08|Tsudakoma Corp|Method for controlling electrically driven selvage device of fluid jet loom|
    JP4128458B2|2003-01-22|2008-07-30|津田駒工業株式会社|Weft detection method in loom|CN107700045A|2017-11-15|2018-02-16|李天合|The staplings detection means and method of a kind of fly-shuttle loom|
    法律状态:
    2021-10-06| MM| Lapsed because of non-payment of the annual fee|Effective date: 20210131 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP012006710|2012-01-17|
    JP2012006710A|JP5821646B2|2012-01-17|2012-01-17|Weft breakage detection device for fluid jet loom that wefts multiple wefts simultaneously|
    [返回顶部]