• 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:
    The invention is concerned with an electronic weft or filling thread monitoring device on a gripper shuttle weaving machine provided with means for moving the gripper shuttle, at the end of the shuttle insertion, back from a stop position to a yarn releasing position, and simultaneously tensioning the thread. The monitoring device comprises thread sensing means responsive to thread travel as well as to thread tensioning and provides machine stopping signals when neither continuous thread travel nor thread tensioning occurs in predetermined, machine-controlled monitoring intervals.
    公开号:SU1168096A3
    申请号:SU782681698
    申请日:1978-10-31
    公开日:1985-07-15
    发明作者:Лепфе Эрих；Вайдманн Эрих
    申请人:Гебрюдер Лепфе А.Г. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the textile industry, more specifically to the control of breakage, undershoot, etc. weft yarns on weaving looms .5
    A known method of controlling the weft yarn on a weaving loom with a shuttle clamp, consisting in controlling the weft yarn in the area between the weft yarn brake and the hook-capture mechanism, in the formation of a clock signal, the duration of which is no more than the movement time of the weft yarn from one extreme position in another, and in determining the correctness of laying the weft yarn by the absence or disappearance of a signal about the movement of the weft yarn during the presence of a clock signal.
    A device is known for controlling a weft thread on a hook-grip loom, comprising a weft thread control unit, an switching lever, at one end of which a weft motion sensor is mounted, and the other is rigidly connected to a weaving machine, a clock generator, kinematically connected with the main shaft of the weaving machine and having a unit for controlling the duration of the output signal, and a logic unit, the first and second inputs of which are connected respectively to the motion sensor of the weft thread and to the unit of duration yhodnogo signal and logic unit output is connected to block lj stop the weaving machine.
    The main disadvantage of the known technical solution is the low Q reliability of controlling the integrity of the weft yarn, since it does not take into account the specifics of its movement in the various phases of the loom operation.
    The purpose of the invention is to monitor the reliability of control.
    The goal is achieved by the method of controlling the weft thread on a loom with a hook-grip, consisting in controlling the weft-50 of the weft thread in the area between the weft-thread brake and the hook-trapping mechanism, forming a clock signal, the duration of which is no more the movement time of the 55 yenin weft yarn from one extreme position to the other, and in determining the irregularity of laying
    the weft thread, by the absence or disappearance of the motion signal of the weft thread during the presence of the clock signal, controls the tension of the weft thread, which is injected by the movement of the nitrate of the dwelling, form an additional clock signal, starting after the onset of the movement of the nitrate of the dwelling at the time of the tensioning of the weft yarn and ending the end of the movement of the nitenate of the inhabitant, and the irregularity of laying the weft yarn is additionally determined by the absence or disappearance of a signal about the tension of the weft yarn during the presence of an additional clock signal.
    In a weft yarn control device on a loom with a hook clamp, containing a weft yarn control unit, including a lever, at one end of which a weft yarn motion sensor is mounted, and the other is rigidly connected to the loom bed, a kinematically connected generator shaft of the loom and having a setpoint for the duration of the output signal, and a logic unit, the first and second inputs of which are connected respectively to the motion sensor of the weft thread and to the setpoint for the duration of the output signal The output of the logic unit is connected to the weaving machine stop unit, the control unit for the presence of the weft thread has a tension sensor for the weft thread installed on the lever, the clock generator has an additional setpoint for the output signal duration, while the outputs of the weave tension sensor and the additional setter duration output signal, respectively, are connected to the third and fourth inputs of the logic unit.
    The motion sensor of the weft yarn is made in the form of an annular triboelectric converter, and the tension sensor of the weft yarn is in the form of a piezoelectric transducer.
    Figure 1 shows the block diagram of the device in figure 2, the control unit of the weft thread, in figure. Section A-A in figure 2.
    Thread 1 is unwound from feed box 2 and passes through brake 3 of the weft thread, unit 4 controls the presence of the weft thread and nitenate resident 5. Positions b and 7 designate respectively the trigger and gripping mechanism of the hook-pickup 8. Output unit 4 through the driver 9 signals It is connected with one input of the logic unit 10, the other input of which is connected to the output of the clock generator 11, and the output is connected to the input of the weaving machine 12 stop unit. The clock generator 11 comprises a disk 13, kinematically associated with a main shaft (not shown) of the loom. Permanent magnets 14 and 15 are mounted on the plane of the disk 13 with the possibility of transposing one relative to another along the periphery of the disk t3. The magnets 14 and 15 are in common with the sensor 16 pulses (the sensor 16 carries signals when the magnets 14 and 15 pass around it) form two output signal output signal durations of duration t (and t2 pulses. Unit 4 includes a housing 17, having walls 18 and 19 and an annular yarn feeder 20. Inside the case 17, a lever 21 is mounted, on one end of which is installed a piezoelectric transducer 22, and on the other - an annular triboelectric transducer 23, also acting as a yarn feeder 20. The conditional converters 22 and 23 are respectively tensioners and movement of the weft yarn 1. The lever 21, made in the form of a flat spring, is installed in the cavity 24 of the housing 17 and connected to it by walls 18 and 19. by means of an elastic rubber-type material 25. The method is implemented as follows. B, located in the start-up mechanic 6. The clock generator 11 64 generates a clock signal with a duration t, the value of which is not more than the time of movement of the weft thread, which is set in motion of the shuttle clamp, from one extreme position to the other (approximately "a machine width). Block 4 generates a signal about the movement of the weft thread moved by the hook-grip. If the signal FL (or LJ - driver 9 output) from the output of block 4 is present during the presence of a clock signal with a duration t, then the logical block 10 does not cause a signal to stop the machine. If the signal FL (LJ) is missing or disappears in the specified period of time t |, then logic unit 10 generates a signal, including the unit 12, to stop the weaving machine. During braking or the rest of the shuttle-capture 8 in the throat clock signal is missing. Then, the clock generator 11 generates an additional clock signal with a duration t starting after the beginning of the movement of the nitrate of the inhabitant 5 at the time of the tensioning of the weft thread and ending before the end of the movement of the nitrate of the inhabitant. During the presence of an additional clock signal, the presence of the FS signal (or SJ - driver 9 output) from the output of block 4 indicates the integrity of the weft thread. The absence of the FS signal (SJ) at time t indicates that the weighted thread is broken or incorrectly inserted. In this case, the logic unit 10 generates a signal to stop the machine. The technical and economic efficiency of the invention is determined by the higher reliability of the control.
    2: 5
    fig, 1 hf-
    Fi8.d
    权利要求:
    Claims (3)
    [1]
    1. A method of controlling the weft yarn on a weaving machine with a hook-grip, which consists in controlling the movement of the weft yarn in the area between the brake of the weft yarn and the pick-up mechanism of the hook-grip, in the formation of a clock signal, the duration of which is no more than the movement time of the weft yarn from one extreme position to another, and
    In determining the incorrectness of laying the weft thread by the absence of ^ or the disappearance of the signal about the movement of the weft thread during the presence of a clock signal, ρ differs in that, in order to increase the Reliability of control, the tension of the weft thread caused by the movement of the thread tensioner is controlled to form an additional clock signal starting after the start of the movement of the thread tensioner at the moment of occurrence of the tension of the weft thread and ending before the end of the movement of the thread tensioner, and the incorrectness of 'laying the weft thread They are carefully determined by the absence or disappearance of the weft thread tension signal during the presence of an additional clock signal.
    [2]
    2. A device for controlling the weft yarn on a weaving machine with a shuttle grip, comprising a control unit for the presence of the weft yarn, including a lever, at one end of which a motion sensor for the weft yarn is installed, and the other is rigidly connected to the bed of the loom, a clock generator kinematically connected to the main shaft weaving machine and having a dial for the duration of the output signal, and a logic unit, the first g and second inputs of which are connected respectively to the motion sensor of the weft thread and with the dial for the duration of 1 output signal ala, and the output of the logical unit is connected to the stop unit of the loom, about t and - ; characterized in that, in order to increase the reliability of the control, the control unit for the presence of the weft thread has a weft tension sensor mounted on the lever I. The clock generator is an additional output signal duration adjuster, while the outputs of the weft thread tension sensor and an additional adjuster of the duration of the output signal, respectively, associated with the third and fourth inputs of the logical block.
    [3]
    3. The device pop.2, characterized in that the motion sensor of the weft thread is made in the form of an annular triboelectric transducer, and the tension sensor of the weft thread is in the form of a piezoelectric transducer.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1168096A3|1985-07-15|Method of checking weft thread on loom with gripping shuttle and device for effecting same
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    US4673004A|1987-06-16|Adjustable control of the weft on a weaving loom
    CZ287733B6|2001-01-17|Method of controlling thread feed and apparatus for making the same
    FR2408543A1|1979-06-08|PROCEDURE FOR CONTROL OF A WIRE DELIVERY DEVICE AND DEVICE FOR IMPLEMENTING THIS PROCESS
    KR890000561B1|1989-03-21|Weft inserting control method and it's apparatus
    US4178590A|1979-12-11|Electronic weft thread monitor for shuttleless weaving machines
    US4359068A|1982-11-16|Electronic weft stop motion on a gripper shuttle weaving machine
    US4924917A|1990-05-15|Weft thread break monitor and movement limiting device
    FR2217451A1|1974-09-06|Shuttleless loom - with improved weft yarn control and motion systems
    GB988415A|1965-04-07|Improvements in shuttleless looms
    US6279619B1|2001-08-28|Method for preliminarily storing yarn and feeding device
    US4942909A|1990-07-24|Weft-feeder with automatic adjustment of the delay time, for weft feeders of shuttleless looms
    US4421143A|1983-12-20|Inductive projectile sensor on a gripper shuttle weaving machine
    US4909286A|1990-03-20|Method for regulating the supply of weft thread on weaving machines, and a device which uses this method
    US4290461A|1981-09-22|Yarn feed controlling device
    SU1194923A1|1985-11-30|Apparatus for monitoring weft breakage
    SU539996A1|1976-12-25|Device for detecting underflow weft on shuttleless weaving machines
    ES8503743A1|1985-03-16|Method of and apparatus for selectively releasing a predetermined length of weft thread in shuttleless looms
    GB1532034A|1978-11-15|Stopping device for weaving looms
    KR910006258B1|1991-08-19|Weft yarn measuring method for a picking device
    SU757615A1|1980-08-23|Automatic weft stopper of shuttleless loom
    RU1784684C|1992-12-30|Method of controlling weft filament on loom with grip shuttle and device therefor
    JP3020552B2|2000-03-15|Loom weft insertion control device
    US20030140979A1|2003-07-31|Method for the control of a power-loom yarn feed device
    同族专利:
    公开号 | 公开日
    DE2845940A1|1979-05-03|
    US4228828A|1980-10-21|
    DE2845940C2|1982-07-01|
    CH622561A5|1981-04-15|
    JPS5473966A|1979-06-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1992009731A1|1990-12-03|1992-06-11|Mezhotraslevoi Nauchno-Tekhnichesky Komplex 'textil'|Method for control of weft thread breakage elimination in shuttle-free loom|CH399354A|1962-12-07|1965-09-15|Sulzer Ag|Process for weft thread monitoring on rapier shuttle looms and weft thread monitors for carrying out the process|
    CH431415A|1965-02-25|1967-02-28|Sulzer Ag|Loom|
    CH437163A|1965-05-28|1967-05-31|Sulzer Ag|Weft thread monitor on a rapier shuttle loom|
    CH479478A|1968-06-17|1969-10-15|Loepfe Ag Geb|Method and device for monitoring the movement of a textile thread|
    DE1928783C3|1968-06-17|1974-07-25|Aktiengesellschaft Gebrueder Loepfe, Wetzikon |Process for converting the relative movement of two bodies that are in frictional contact with one another into an electrical quantity|
    CH489642A|1968-10-24|1970-04-30|Loepfe Ag Geb|Device for weft thread monitoring on weaving machines with gripper guards|
    CH580533A5|1974-07-12|1976-10-15|Loepfe Ag Geb|
    CH583656A5|1974-11-29|1977-01-14|Loepfe Ag Geb|
    CH587974A5|1975-04-23|1977-05-31|Loepfe Ag Geb|
    JPS5738706B2|1975-08-26|1982-08-17|
    SU539996A1|1976-01-04|1976-12-25|Ивановский текстильный институт им.М.В.Фрунзе|Device for detecting underflow weft on shuttleless weaving machines|
    JPS5714457B2|1976-02-17|1982-03-24|JPS6229538B2|1978-12-30|1987-06-26|Toyoda Jido Shotsuki Seisakusho Kk|
    CH639152A5|1979-05-04|1983-10-31|Loepfe Ag Geb|ELECTRONIC WIFE GUIDE ON A WEAVING MACHINE WITH GRIPPER GUARDS.|
    US4326564A|1980-01-31|1982-04-27|Lessona Corporation|Loom stop motion system and method|
    CH643614A5|1980-04-01|1984-06-15|Loepfe Ag Geb|ELECTRONIC WIFE GUARD.|
    CH647279A5|1980-10-14|1985-01-15|Loepfe Ag Geb|ELECTRONIC Weft Monitor on an Air Jet Weaving Machine.|
    US4471817A|1981-01-07|1984-09-18|Leesona Corporation|Fluid weft insertion loom monitoring system|
    JPS59106543A|1982-12-13|1984-06-20|Nissan Motor|Weft yarn feeder of segment loom|
    DE10117879A1|2001-04-10|2002-10-17|Iro Patent Ag Baar|Yarn monitor, for weft yarns at a loom, has guides to lead the yarn through a deflected path with a converter to generate signals for yarn movement and tension from mechanical loading to an electronic evaluation unit|
    EP1918437A1|2006-11-02|2008-05-07|Sultex AG|Method and device for weft insertion|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH1337477A|CH622561A5|1977-11-01|1977-11-01|
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