• 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:
    1510422 Weft stop motions SULZER BROS Ltd 5 March 1976 [21 March 1975] 08934/76 Heading DIE A weft stop motion comprises a radiation transmitter 2, a number of receivers 6 arranged across the path of a weft 4 so that movement of the weft sequentially obscures the receivers 6 and an electrical circuit which counts the pulses from the receivers 6, compares the number of pulses for a given time with a preset number and stops the loom if the number of pulses is less than the preset figure. In a jet loom the receivers and transmitter may be arranged around a confusor.
    公开号:SU845794A3
    申请号:SU762333201
    申请日:1976-03-15
    公开日:1981-07-07
    发明作者:Целени Клаус
    申请人:Гебрюдер Зульцер Аг (Фирма)；
    IPC主号:
    专利说明:

    the input of the second element I, the second input of which through the inverter is connected with the output of the clock pulse generator, and the output is connected to the loom stopping unit or to the weft break signaling device.
    FIG. Figure 1 shows the structural uncogram of the device for automatically stopping a CTaHKat on an IG. 2 (a, b, c, d) - graphics, illustrating the work of the elements of the spreading block; in fig. 3 is a block diagram of a clock generator and a logic unit; in fig. 4 (a, b, c, d, d, e, g) are graphs explaining the operation of a logical locus; in fig. 5, b and 7 are the variants of positioning the sources and detectors of radiation along the periphery of the guide ring.
    The device for automatic shutdown of the weaving machine (Fig. 1) consists of a current source 1 connected to the radiation source 2, for example a fluorescent lamp. Radiation detectors 3 and 4 are connected to the measuring unit 5, consisting of a series-connected comparison element, a form generator 7, a sucmator 8 and an amplifier 9, captured by negative feedback 10. The output of the amplifier 9 via logic unit 11 is connected with the unit .12 stopping the loom. (Or.,;. Signaling device for breaking the weft thread); ...--. .
    t; 6 comparisons, shaper 7, sumM; Trp.8, and amplifier 9 have output-.-signals 13 and 14, 15 and 16, 17, 18, respectively.
    The generator 19 (FIG. 3) of clock pulses includes a disk 21 mounted on the main shaft 20, having a flag 22, and an inductive converter 23.
    The logic unit 11 contains an element 24, the inputs of which are connected to an inductive converter 23 and a measuring unit 5. At the same time, the output of the converter 23 is connected to the input of the pulse element 24 through the differentiating element 25 and the counter input 24. The output of converter 23 through inverter 27 is connected with the first input of element 28, the second input of which is connected to the output of counter 26 via a setpoint generator 29, and the output under keys to a block 12 for stopping a weaving machine ...
    Converter 23, differentiating element 25 and inverter 27 have output signals 30, 31 and 32, respectively.
    Radiation source 2 is mounted on guide ring 33 1 fig. five) . Opposite the radiation source 2 are radiation detectors 3 and 4.
    Two sources of radiation 2 and two radiation detectors 3 and 4 (Fig. 6) or four sources of radiation 2 and four pairs of radiation detectors 3 and 4 (Fig. 7) can be used to measure the vibrations of the thread.
    The device works as follows.
    When laying, the weft thread 34 (FIGS. 1 and 5) oscillates in a cone-shaped light flux 35 formed by the radiation source 2 (conicity). Changes in the intensity of the light flux caused by vibrations of the filament are sensed by radiation detectors 3 and 4. As a result, signals 13 and 14 shifted in time appear at the outputs of the comparison element 6 (Fig. 2a). Shaper 7 alters the waveform as shown in FIG. 2 6.15, 16). As a result of the summation of the signals 15 and 16 in the adder 8 (Fig. 2 to 17) and the gain in the amplifier 9, trapezoidal pulses 18 appear in the output of the latter (Fig. 2 g). The use of the element of comparison 6 makes it possible to eliminate interference into the logic block 11 caused, for example, by fluctuations in the intensity of the light flux. This is explained by the fact that interference signals are not shifted in time, but have the same amplitude. Therefore, the passage through the reference element 6, they are mutually destroyed.
    The operation of logic block 11 (Fig. 3 consists in comparing the number of pulses caused by oscillations of the weft yarn over a given period of its construction with the number of pulses given for this type of threads.
    The period of laying the weft yarn is set by means of a clock pulse generator 19. The duration of this period is determined by the speed of the main shaft 20 of the machine and the size of the flag 22 (angle f,} (Fig. 46, 30.). The output signal 30 of the converter, passed through the differentiating element 25, has the form shown in Fig. 4 g (31 ) .The signal 31 sets the counter 26 to the initial state.
    The pulse counter 26 can be made in the form of a shift register containing n serially connected storage cells. Using the setting device 29, the number of pulses is set corresponding to the number of vibrations of the thread when it is properly laid.
    At the beginning of the monitoring period (monitoring periods I, II, I, IV, and V, Fig. 4) all register cells are set to state 1. As a result: 1 is received at the first input of And 28, and the second input (input inverter 27), O. As a result, the output element And 28 is equal to. About and therefore the unit 12 stop the machine is de-energized.
    Pulses 18 (Fig. 4a, b, for simplicity are pointed), caused by vibrations of the laid thread (output of the measuring unit 5), with a signal 30, the output of the converter 23) are fed to the input of the counter 26 (register) from the output of the And 24 element With the advent of each pulse 18, the cells of the register are sequentially rearranged from state 1 to state O. If the number of oscillations of the weft yarn during the monitoring period is equal to or greater than the specified one, then the corresponding cell of the register (Fig. 3, cell ij takes a zero value (Fig. 4 and at the entrance Therefore, despite the fact that at the end of the monitoring period, the output of the inverter 27 will take state 1 (Fig. 4 d, 32), the element 28 will not work and will not turn on the stop unit 12 (see Fig. 4) In the control period II (Fig. 4) with a given number of oscillations of the weft yarn three, only two yarn oscillations occur during the laying period. In this case, 1 is stored in the register ig cell 1 and after the monitoring period ends, the output of the inverter 27 is also 1. Output And 28 takes the value 1 and the stop unit 12 is activated. FIG. 4 shows cases of control when the thread oscillations occur both before and after the control period (period III), the thread oscillations are completely absent during the control period (period IV), the thread oscillations are present both during the control period and after it (the period V) As follows from FIG. 4, the machine stops only if during the control period the number of yarn oscillations is less than the specified one (period I I) or they are completely absent (period IV), which indicates either the weft thread is broken or it is underfed. Possible embodiments of the weave yaw sensor are shown in FIG. 5, 6 and 7. All of these sensor designs are not fundamentally different from each other. An increase in the number of radiation sources (LEDs) reduces the likelihood of the weft thread leaving the control zone. To increase the control accuracy, it is necessary that each radiation source interact with an even number of radiation detectors. The economic effect from the use of the proposed device is determined by the high reliability of the control of the breakage or failure of the weft thread. connected to the measuring unit, and the unit of the weaving loom or weft break indicator, characterized in that, in order to provide Ensuring the reliability of control of the applied weft threads, it has a logic unit and a pulse generator, the emitter contains at least one radiation source, and the photoreceiver has an even number of radiation detectors, the sources and radiation detectors are located along the periphery of the KOJIJ guide and opposite each source An even number of radiation detectors is installed, and the outputs of the measuring unit and the clock pulse generator are connected via a logic unit with a loom stopping or alarm unit. torus weft yarn. 2. The device according to claim 1, characterized in that the measuring unit consists of a series-connected reference element, a driver, an adder and an amplifier. 3. The device according to claim 1, differing in that the logic unit contains a differentiating element, a pulse counter, a pulse setter, two elements AND and an inverter, wherein the outputs of the measuring unit and the clock generator through the first element AND are connected to the first input of the counter pulses, the second input of which through the differentiating element is connected with the output of the clock pulse generator, and the output of the pulse counter through the pulse generator is connected to the first input of the second element I, the second input of which is connected via an inverter with the output of the clock pulse generator, and the output is connected to a weaving stopping unit, a machine, or a weft thread break indicator. Sources of information taken into account in the examination 1. US patent 3688958, cl. 226-11, 1972.
    18W gksh No.-x
    权利要求:
    Claims (3)
    [1]
    Claim
    1. A device for automatically stopping a weaving machine with a pneumatic laying of weft yarns, comprising a guide ring, a radiator perpendicular to the direction of movement of the weft yarn, a photodetector connected to the measuring unit, and a stop unit of the weaving machine or a weft break signaling device, characterized in that , in order to ensure the reliability of control of the weft threads being laid, it has a logic block and a clock pulse generator, the emitter contains at least one source radiation detector, and the photodetector - an even number of radiation detectors, and the radiation sources and detectors are located on the periphery of the guide ring and an even number of radiation detectors is installed opposite each radiation source, and the outputs of the measuring unit and the clock pulse generator are connected through the logic unit to the weaving stop unit the machine or the breakage indicator of the weft thread.
    [2]
    2. The device pop. 1, characterized in that the meter! The first unit consists of series-connected comparison element, shaper, adder and amplifier.
    [3]
    3. The device pop. 1, characterized in that the logic unit contains a differentiating element, a pulse counter, a pulse generator, two AND elements and an inverter, while the outputs of the measuring unit and the clock generator through the first AND element are connected to the first input of the pulse counter, the second input of which is through the differentiating the element is connected to the output of the clock generator, and the output of the pulse counter through the pulse generator is connected to the first input of the second element And, the second input of which is connected through the inverter to the output of the generator clock pulses, and an output unit connected to the stop of the weaving, machine or Warning breakage of the weft yarn.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU845794A3|1981-07-07|Automatic stopping device of loom with pneumatic weft thread guide
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    US4192243A|1980-03-11|Sewing machine thread monitor
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    US4362190A|1982-12-07|Method of sensing abnormality of weft detecting device in loom
    US4338032A|1982-07-06|Detection of faults in sheet and like materials
    GB1532854A|1978-11-22|Method and apparatus of stopping operation of a weaving loom
    US4566163A|1986-01-28|Automatic supervisory system for a warper
    SU1567682A1|1990-05-30|Device for monitoring break of parallel threads
    KR830000802B1|1983-04-15|Intrusion detection device of fluid injection loom
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    SU1335524A1|1987-09-07|Device for winding filamentary material
    US4549268A|1985-10-22|Apparatus for measuring the length of filamentary material, such as yarn or thread wound-up at individual winding or spinning locations of a textile machine
    SU941441A1|1982-07-07|System of automatic control of carded mat non-uniformity
    同族专利:
    公开号 | 公开日
    DE2513356B2|1978-03-23|
    DE2513356A1|1976-09-23|
    CS194743B2|1979-12-31|
    DE2513356C3|1978-11-23|
    CH589738A5|1977-07-15|
    JPS51143768A|1976-12-10|
    FR2304706B1|1980-04-30|
    GB1510422A|1978-05-10|
    JPS6047376B2|1985-10-21|
    AT344111B|1978-07-10|
    US4023599A|1977-05-17|
    IT1058606B|1982-05-10|
    FR2304706A1|1976-10-15|
    ATA226875A|1977-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES245405A1|1958-11-08|1959-05-01|Viaplana Guri Antonio|A photo-sensitive detecting system|
    CH431415A|1965-02-25|1967-02-28|Sulzer Ag|Loom|
    DE1535398B1|1965-04-14|1970-09-03|Engels Gmbh August|Thread monitor for monitoring the weft thread on weaving machines|
    CH485054A|1968-10-10|1970-01-31|Sulzer Ag|Optical weft thread monitor for a weaving machine|
    DE2105559A1|1971-02-06|1972-08-10|Elitex Zawody textilniho strojirenstvi generalni rzeditelstvi, Reichenberg |Weft thread detector - fitted to air jet shuttless looms|
    US3824401A|1971-11-16|1974-07-16|Enshu Seisaku Kk|Photoelectric type weft sensing process and weft sensor|
    CH547371A|1972-01-13|1974-03-29|Sulzer Ag|PROCESS FOR MONITORING THE ENTRY OF THE WEFT FEEDS IN A WEB MACHINE, DEVICE FOR CARRYING OUT THE PROCESS.|
    NL7206368A|1972-05-10|1973-11-13|
    JPS4914418A|1972-06-10|1974-02-07|
    JPS502672A|1973-05-12|1975-01-11|JPS5424505B2|1975-11-25|1979-08-21|
    JPS5714457B2|1976-02-17|1982-03-24|
    NL7603258A|1976-03-29|1977-10-03|Picanol Nv|METHOD AND DEVICE FOR CHECKING THE IMPACT ON A WEAVING MACHINE.|
    US4079250A|1976-12-16|1978-03-14|Jeffcoat James M|Programmable voltage sensing circuit|
    JPS6229538B2|1978-12-30|1987-06-26|Toyoda Jido Shotsuki Seisakusho Kk|
    JPS5760457B2|1979-05-02|1982-12-20|Toyota Tsusho Kk|
    US4473096A|1979-08-06|1984-09-25|Leesona Corporation|Weft end reception system|
    JPS5648619B2|1979-11-07|1981-11-17|
    JPH0246704B2|1982-06-30|1990-10-17|Tsudakoma Ind Co Ltd|
    JPS599246A|1982-07-07|1984-01-18|Nissan Motor|Weft yarn detecting method and apparatus of shuttleless loom|
    CH659672A5|1982-11-11|1987-02-13|Loepfe Ag Geb|Weft thread monitor.|
    JPH0413460B2|1983-04-01|1992-03-09|Tsudakoma Kogyo Kk|
    GB8415164D0|1984-06-14|1984-07-18|Beta Instr Co|Measuring temperature of object|
    IT1184759B|1985-04-22|1987-10-28|Roy Electrotex Spa|WEAPONS FOR WEAVING FRAMES|
    BE903115A|1985-08-26|1986-02-26|Picanol Nv|OPTICAL IMPACT GUARD FOR WEAVING MACHINES WITH A U-SHAPED REED|
    SE8600360L|1986-01-27|1987-07-28|Iro Ab|PREFERRED BY A TRADE OR YARN STORAGE DEVICE FOR AN INDICATOR OF THE MOVEMENT OF A TRAD RESP|
    DE4142356A1|1990-12-28|1992-07-02|Nissan Motor|WOMB MONITORING SYSTEM FOR A WEAVING MACHINE|
    JP2611700B2|1991-02-20|1997-05-21|株式会社豊田自動織機製作所|Weft detection display in jet loom|
    US5247184A|1992-04-03|1993-09-21|Wardwell Braiding Machine Company|Photoelectric bobbin sensor with retroreflective filament presence detection|
    US5352887A|1992-08-28|1994-10-04|Motorola, Inc.|Circuit for detecting a droplet in motion and method therefor|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH362375A|CH589738A5|1975-03-21|1975-03-21|
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