KR20060046136A - Weft-insertion-condition display unit for loom - Google Patents

Abstract

It is easy to identify the time-series changes in the weft non-weft situation of the loom.

Weft arrival time based on the weft arrival time detection means 30 for detecting the weft arrival time based on a real signal obtained by detecting the weft yarn on the weft non-maintenance path, and the weft arrival time based on the weft arrival time detected over a predetermined number of picks. The weaving situation of the loom is displayed by the statistical value calculating means 40 for calculating the statistical value of and the display means 41 for storing the statistical value calculated by the statistical value calculating means 40 and displaying the statistical value graphically on the time series axis. Configure the device 20.

Description

Weaving situation display device of the loom {WEFT-INSERTION-CONDITION DISPLAY UNIT FOR LOOM}

1: is explanatory drawing of the principal part of the weaving machine 1 of a loom.

Fig. 2 is a block diagram of the weft filling state display device 20 of the weaving machine according to the present invention, and the first weft filler 21 related thereto.

3 is a block diagram of a configuration example of the display means 41 of the present invention.

4 is an explanatory diagram showing an example of displaying statistical values by the display means 41 of the present invention.

5 is an explanatory view of an example of setting an alarm by the display means 41 of the present invention.

6 is an explanatory view of an example of display of an alarm by the display means 41 of the present invention.

7 is an explanatory diagram showing an example of displaying statistical values by the display means 41 of the present invention.

<Description of Symbols for Main Parts of Drawings>

1: Weaving machine of the loom 2: Holder

3: thread feeder 4: weft

5: length measurement storage device 6: rotation guide

7: drum 8: stop pin

9: manipulator 10: main nozzle

11: sub nozzle 12: pressure air

13 slope 14 opening

15: pressure air 16: body

17: woven fabric 18: before weaving

19: supply yarn cutter 20: weaving state display device of the loom

21: first weft filler 22: second weft filler

23: switch 24: sensor

25 sensor 26 amplification circuit

27: comparator 28: amplification degree setter

29: threshold setting device 30: weft arrival time detection means

31: Weft insertion judgment circuit 33: Spindle

34: encoder 35: timing signal generator

36: reset circuit 37: timing setting circuit

38: judgment circuit 39: logic signal generator

40: statistical value calculation means 41: display means

42: Weft select signal generator 43: Sample number selection button

44: scroll button 45: reset button

46: storage unit 47: screen display

48: port 49: processing unit

A: bend line graph of average value

B: bar graph connecting maximum and minimum values

C: Graph of bending line of standard deviation S1: Real signal

S2: Loom stop signal S3: Weft insertion abnormal signal

S4: arrival timing signal S5: weft insertion detection timing signal

S6: Threadless signal S7: Timing signal

S8: Weft selection signal S9: Display data signal

θ: angle of rotation

The present invention relates to an apparatus for calculating the statistical values of the wefting situation and displaying those statistical values in a loom.

In looms, especially fluid weaving looms, during weft adjustment, the pressure or injection timing of the weft injection nozzle is adjusted based on the weft arrival time. As a criterion of this adjustment, there is a method of numerically displaying the weft arrival time on the setting device of the loom based on the actual signal of the weft filler (Patent Document 1).

In addition, the display of the arrival angle may be displayed for each weft pick, or a statistical value (average value, etc.) obtained over a predetermined pick may be displayed by numerical values (Patent Document 2). In displaying the angle of arrival for each weft pick, since the numerical value changes for each pick, its characteristics are difficult to understand. As described above, in the conventional loom setting device, there is no present effective display of statistical values over time.

[Patent Document 1]

Japanese Patent Application Laid-Open No. 62-231057

[Patent Document 2]

Japanese Patent Application Laid-Open No. 9-195145

Therefore, the subject of this invention is making it easy to grasp | ascertain the time-series change of the weft non-pillar situation of a fluid injection loom.

Therefore, the present invention is based on the weft arrival time detection means for detecting the weft arrival time based on the real signal obtained by detecting the weft on the weft non-maintenance path, and based on the plurality of weft arrival times detected over a predetermined number of picks. Statistical value calculating means for calculating the statistical value at the time of weft arrival; and storing a plurality of statistical values calculated by the statistical value calculating means in response to the operation progress; Correspondingly, the weft weaving status display device of the loom is constituted by display means for graphic display over time (claim 1).

The statistical value is one or more of the maximum value, the minimum value, and the standard deviation, and the average value (claim 2). Further, the sampling element in calculating the statistical value can be selected in plural, and the graphic display can be switched in accordance with the sampling element. (Claim 3).

The stored statistical value is each of the above statistical values of the sampling pick amount corresponding to one package of the actual supply body (claim 4), and the statistical value is calculated based on the plurality of weft arrival times sampled for each color of the weft yarn. (Claim 5).

The display means stores a plurality of statistical values outputted from the statistical value calculating means in correspondence with a sampling pick number, and reads the plurality of statistical values from the storage portion upon request of the screen display. And a processing unit for displaying on the screen display a graphic display corresponding to the size of the plurality of statistical values (claim 6).

In addition, in the processing unit, a threshold for alarm is set in advance for at least one of the statistical values. During weaving operation, the processing unit compares the statistical value from the statistical value calculating means with the corresponding threshold value, An alarm is output when the corresponding threshold is exceeded (claim 7).

The processing unit displays at least one of the alarm output situation or the occurrence status of the weft-injection miss over time and on the same screen together with a graphic display corresponding to the size of the statistical value (claim 8).

In the present invention, a plurality of statistical values of the weft arrival time calculated by the statistical value calculation means and stored in correspondence with the operation progress are graphically displayed corresponding to the size of the statistical values on the time series axis, and thus the time values of the statistical values of the weft arrival angle are changed. You can easily see the change visually. Therefore, it is possible to estimate factors on the basis of the time-lapse change of these statistics, for example, to improve the quality of the weft supply chamber, or to reset the wefting condition so that weft filling is stabilized. Advantageous (claim 1).

Since one or more of the maximum, minimum, and standard deviation as a statistical value and the average value are displayed, the time-dependent change in the degree of deviation of the weft arrival time from the standard deviation value can be known, and the variation range of the weft arrival time from the maximum and minimum values is known. Since it is possible to know from the form of temporal change of both the mean value and the degree of deviation, for example, whether the cause of weft trouble, such as weft weft miss, is due to the quality of the weft thread feeder or the weft wetting device. It is advantageous in that it is possible to determine whether or not it is due to the adjustment of, and to immediately adjust the loom as a treatment corresponding to this, for example, to change the pressure of the weaving nozzle (Claim 2). By selecting a plurality of sampling elements (sampling numbers) for calculating the statistical values and switching the display of the statistical values in accordance with the sampling elements, it is possible to determine the trend for each sampling element (claim 3).

By storing each value of the amount of pick water corresponding to one package of the actual supplier as the statistical value to be stored, it is possible to determine the tendency for each actual supplier (claim 4). For example, by comparing the temporal change in the statistical value of the weft arrival time at the time of weft trouble occurrence with that of one package of good quality at the time of good quality of the weft thread feeder, Detailed information feedback for the degree of defects and the quality improvement to the actual feed body manufacturing process can be performed. In addition, although the number of sampling picks for one package varies greatly depending on the yarn type, the physical properties, and the winding diameter, the number of sampling picks per one package is specifically in the range of thousands to hundreds of thousands of picks. By calculating the statistical value based on the data sampled for each color of the weft yarn, it is possible to know the change over time of the statistical value at the time of arrival of the weft yarn for each weft color, and correspondence for each kind is made possible (claim 5).

Since a plurality of statistical values are stored in correspondence with sampling pick numbers, and a plurality of statistical values are displayed graphically in correspondence with their sizes, the temporal trend of the statistical values can be visually grasped on the screen (claim 6).

When the statistics exceed the corresponding threshold, an alarm is output. By this alert, the operator can recognize the abnormality of the weft inlet situation and can grasp the change in detail over time, so that the root cause of the weft can be identified and solved more quickly. (Claim 7).

In the graphic display process corresponding to the size of the statistical value, at least one of the alarm output situation or the occurrence of the weft inlet miss is displayed on the same screen in time and on the same screen. The occurrence can be confirmed and the root cause can be identified more accurately (Claim 8).

Embodiment of the Invention

FIG. 1: shows the principal part of the weft injector 1 of a fluid (air) injection type loom as a loom. In this FIG. 1, the weft thread 4 drawn out from the thread supply body 3 supported by the holder 2 is led to the rotary thread guide 6 of the drum-type length measuring storage device 5, for example. To be wound on the outer circumferential surface of the drum 7 by the rotational movement of the rotary chamber guide 6 while being stopped by the stop pin 8 on the outer circumferential surface of the drum 7 in a stationary state. By this, the length is measured to the length required for one weft weaving and stored until weft weaving.

At the time of weft insertion, when the stop pin 8 is driven by the manipulator 9 and retracted from the outer circumferential surface of the drum 7, the weft 4 wound around the outer circumference of the drum 7 is It is released on the drum 7 by the length necessary for one wefting and led to the main nozzle 10 as the wefting nozzle.

The main nozzle 10 is a weft yarn having a length necessary for one weft filling by injecting the pressure air 12 into the opening 14 of the inclined 13 over the injection period for the weft filling operation. 4) weft into the opening (14). As a result, the weft yarns 4 run along the weft non-circumferential path in the opening 14. In addition, the pressure air 12 is set to an appropriate pressure value by pressure adjustment means (not shown).

In the process in which the weft yarn 4 moves along the non-circumferential path in the opening 14, the plurality of groups of sub-nozzles 11 spray the pressure air 15 in the weft non-circumferential direction in the non-circumferential direction at the same time in the weft insertion direction. Alternatively, a force is applied in the weft direction in the weft yarns 4 in the non-circumferential direction in the passage 14 by carrying out a relay spray in harmony with the specific speed of the weft yarns 4. In addition, the pressure air 15 is also set to an appropriate pressure value by pressure adjusting means (not shown).

The weft yarn 4 which is normally wefted by the injection operation of the main nozzle 10 and the plurality of sub-nozzles 11 as the weft inlet nozzles is before the weaving of the woven fabric 17 by the body 16. After being squeezed into the woven fabric and incorporated into the woven fabric 17, it is cut by the supply chamber cutter 19 on the weft side and cut out from the weft yarn 4 inside the main nozzle 10.

The first weft filler 21 for determining whether weft is appropriate together with the weft weaving has a sensor 24, and this sensor 24 is located in the weft non-mains in the vicinity of the weaving end of the opposite side of the weft weaving. On the contrary, the weft yarn 4 which has been normally wefted is installed at a position where it can reach, and the weft yarn 4 is detected there. The first weft filler 21 determines whether the weft is properly inserted from the change in the output signal of the sensor 24 in the predetermined detection period, but when the arrival of the weft 4 is detected, the first weft filler 21 detects the actual signal ( S1) is generated and the real signal S1 is sent to the weft filling situation display device 20 of the loom according to the present invention, but when the real signal S1 has not occurred within the predetermined weft detection period, that is, weft filling When the arrival of the weft yarn 4 cannot be detected due to the occurrence of a defect, the loom stop signal S2 is output and the loom stop signal S2 is sent to a loom control device (not shown). The loom control device (not shown) stops the loom at a predetermined angle when the loom stop signal S2 is received.

Moreover, the 2nd weft filler 22 has the sensor 25, This sensor 25 opposes at the position away from the weaving end on the opposite side of the weft, and is a part of the weft 4 which was blown off by blowing. (* Cut cut end) or the front end of the long weft yarn (4) is detected. When the second weft filler 22 detects the blown end of the weft yarn 4 or the front end of the weft yarn 4 of the long pick as an input of the output signal from the sensor 25, the weft filling abnormality corresponding to them is detected. Generate signal S3.

Further, the sensors 24 and 25 of the first weft filler 21 and the second weft filler 22 are body grooves (deformation body) of the body 16 so as not to interfere with the body 16 at the time of body stroke. It is usually configured as a transmissive light detector which incorporates a light transmitting element and a light receiving element. The transmission light-type sensors 24 and 25 have a detection area on the weft non- main line, and when detecting the weft 4 on the weft non-main line, an electrical signal that increases according to the amount of reflected light from the weft 4. Fires the output. Of course, the sensors 24 and 25 can also be configured as transmissive and other forms of sensors.

Fig. 2 shows the internal structure of the first weft filler 21 together with the weft filling state display device 20 of the loom according to the present invention. In Fig. 2, the output signal of the sensor 24 of the first weft filler 21 is amplified by the amplifying circuit 26, and becomes the input of one input terminal of the comparator 27 as the signal S0. In addition, the amplification degree of the amplification circuit 26 is previously adjusted by the amplification degree setter 28 by the amplification degree suitable for a real kind. The comparator 27 inputs the threshold for identifying the presence or absence of a thread suitable for the yarn type by the threshold setter 29 from the other input terminal in advance, so that the output of the amplification circuit 26 and the yarn are available. Compare the thresholds for identification.

Signal level of signal S0 from threshold ≤ amplification circuit 26

When it is determined, the comparator 27 determines that there is a thread, and generates, for example, a real signal S1 of H level, which is input to one input terminal of the decision circuit 38 of the weft-injection judgment circuit 31 and It is sent to one input end of the weft arrival time detection means 30 in the weft weaving status display device 20 of the loom of the present invention. In addition, in the example of FIG. 2, although the signal S0 itself in which the output signal of the sensor 24 was amplified is used as a determination object of the presence or absence of a seal, neither is shown between the amplifying circuit 26 and the comparator 27. FIG. The presence or absence of a seal may be determined based on the differential signal of the signal S0 or the integral signal obtained over a predetermined detection period via a differentiator or integrator. In this case, the output signal from the differentiator or the integrator can be treated as a real real signal.

On the other hand, the encoder 34 connected to the main shaft 33 of the loom generates a signal of the angle θ of rotation of the main shaft 33, and the timing signal generator 35 which inputs the signal of the angle θ is input. In the weft detection period, for example, at 200 ° to 290 ° with an angle θ, the weft detection timing signal S5 in the on state (H level) is generated, which is input to the other input terminal of the determination circuit 38. And the reset circuit 36 and the timing setting circuit 37 in the weft decision circuit 31 are sent. The signal of angle θ is also sent to the weft arrival time detection means 30.

The determination circuit 31 inputs the real signal S1 and the timing signal S5, and when the real signal S1 of the H level is input during the generation period of the weft detection timing signal S5, the weft yarn It is judged that the load is normal, and the output of the output stage is kept at the L level. On the contrary, when the real signal remains at the L level during the generation period of the timing signal S5, the determination circuit 31 determines that the weft is miss and sets the output of the output stage to the H level. When the logic signal generator 39 is receiving the output of the determination circuit 38, the loom stop signal S2 at the start timing of the signal output from the timing setting circuit 37 after the end angle 290 ° between the weft detectors. ) Is sent to a loom controller (not shown) to stop the loom at a predetermined angle. Further, the determination circuit 38 is reset by the operation timing of the reset signal output from the reset circuit 36 at the end angle 290 degrees between the weft detectors, and is prepared for the next weft insertion cycle. In addition, the logic signal generator 39 is reset by the switch 23 operated by the weaving machine after repair of the cause of stopping the loom.

In addition, in the above example, the determination circuit 31 determines that the weft is normal when the real signal S1 reaches the H level even once in the timing signal S5 for weft detection. It is not limited to the above. For example, with respect to the determination condition for determining that the weft is normal, the condition is that the real signal S1 is at the H level at the end of the timing signal S5, or the period for which the H level is continued for a predetermined period. These plurality of determination conditions may be appropriately selected according to the thread type of the weft yarn 4, or may be combined two or more. The amplification degree set in the amplification degree setter 28 and the threshold value set in the threshold setter 29 may be appropriately set according to the thread type (color, thickness, etc.) of the weft yarn 4. In the multi-color weft loom, the above-described determination condition, amplification degree and threshold value can also be configured so that the circuit can be selected corresponding to the selection signal of the weft yarn 4. Further, the processing relating to the determination of whether or not to weft the comparator 27 and the weft wetting determination circuit 31 can be realized by microcomputer and software processing. In such a case, the amplification degree, threshold value and determination condition may be set by the display means 41 which is used in combination with the setting machine of the loom.

By the way, the weft weave situation display apparatus 20 of the loom which concerns on this invention is equipped with the weft arrival time detection means 30, the statistical value calculation means 40, and the display means 41. As shown in FIG. The weft arrival time detection means 30 detects the weft arrival time from the real signal S1 obtained by detecting the weft yarn 4 on the weft non-maintenance and the signal of the rotation angle θ, and reaches the arrival timing signal within the cycle. (S4) is generated, and this arrival timing signal S4 is outputted to the statistical value calculating means 40. The arrival timing signal S4 is a signal of the angle θ of the weft arrival timing (weft arrival timing) in the rotation of the main shaft 33. Since the angle θ in the rotational phase of the main shaft 33 is proportional to the passage of time, the arrival timing signal S4 is, for example, on the time series axis that measures the elapsed time from the reference angle (0 °). It is also a signal. The real signal S1 may be an output signal of the sensor 24 or the amplifying circuit 26.

The statistical value calculating means 40 inputs the timing signal S7 and the arrival timing signal S4 which are generated for each passage of the reference angle (0 °) from the timing signal generator 35 to input the frequency of the timing signal S7. By counting, the number of picks is counted, and the number of picks does not reach the preset sampling number based on the weft reaching angle θ as the weft reaching time inputted over a predetermined predetermined number of samples (number of picks). At this point in time, the statistical value of the weft arrival time is calculated. The statistical value here is one or more values of the maximum value (fastest weft angle θ), minimum value (latest weft angle θ), and the standard deviation of the weft time, and weft arrival time. Is the average value of the angle θ.

The difference between the two values of the maximum value and the minimum value indicates the width of the deviation, and each value represents the actual value of the deviation range in the sampling period. In addition, since it is an actual value, it helps to adjust a loom as much as it knows the range of a deviation compared with a standard deviation. It can be concluded that the cause of the weft stop (vacant stop) is in the instability of the weft inlet (deviation of the arrival) from the change in the numerical value and the average value indicating such a deviation. According to such maximum value and minimum value, such fluctuation ranges can be known, which is advantageous in that the pressure of the weaving nozzles (main nozzle 10 and subnozzle 11) can be changed, for example, in the adjustment of the loom. The standard deviation numerically displays the degree of deviation and corresponds to the degree of dispersion in the binary distribution, the so-called acid height. On the other hand, the average value is literally the average value of a predetermined number of picks, for example, 32 picks, and it is possible to know the approximate fluctuation of the weft angle from now on.

In the process of calculating the statistical value, a plurality of sampling elements (sampling numbers) are set to be selectable in advance, and the number of sampling picks, which is the number of display data when displaying a large number of the calculated statistical values, automatically corresponds to the sampling number. It is selected or can be selected from a plurality by the setting screen which is not shown in figure. For this reason, the operator can select an appropriate sampling number or sampling pick number from among them. In addition, the sampling number here is the number of actual values based on calculating the statistical value of the weft arrival timing, and the statistical value calculating means 40 when the sample number (sampling pick number) is set to 32 picks as in the later-described embodiment. ) Calculates the statistical value for one sampling pick based on the measured value of the weft arrival timing for 32 picks. In addition, as the statistical value to be stored, each value of the sampling pick quantity corresponding to one package portion of the actual supply body 3 is stored.

In addition, since the statistical value calculating means 40 calculates the statistical value based on the data sampled for each weft color, the weft selection signal S8 from the weft selection signal generator 42 is inputted, and the weft arrival by each weft color is input. One or more of the maximum value of the time period, the minimum value of the weft arrival time, the standard deviation of the weft arrival time, and the average value of the weft arrival time are calculated and output to the display means 41 as the display data signal S9. In addition, the weft selection signal generator 42 receives the timing signal S7 as an input, generates a weft selection signal S8 based on a preset weft selection procedure, and outputs it to the statistical value calculating means 40. In addition to this, the wefting device 1 (length measurement storage device 5 or main nozzle 10) selected by the weft selection signal S8 is operated.

The display means 41 stores a plurality of statistical values calculated by the statistical value calculating means 40 in response to the operation progress, and stores the plurality of statistical values stored at the request of the screen display of the display means 41. Graphically displays as time passes, corresponding to size.

3 shows an example of the configuration of the display means 41. In FIG. 3, the display means 41 has a storage unit 46, a touch panel display 47, a port 48, and a processing unit 49. The port 48 receives the display data signal S9 or the like output from the statistical value calculating means 40, and transmits a signal between the processing unit 49 and the external statistical value calculating means 40 or the screen display 47. In addition to sending and receiving, an alarm signal is output to the outside according to the alarm processing.

The storage unit 46 stores the plurality of statistical values of the display data signal S9 in correspondence with the sampling pick numbers. The touch panel display 47 is a display capable of displaying a graphic corresponding to the size of a plurality of statistical values and inputting a request for screen display, various commands, and data. Then, the processor 49 controls the input / output to the port 48 in accordance with the software described later, and the plurality of the processor 49 from the storage unit 46 in response to a request for display of the screen from the touch panel display 47. In addition, the statistical value of is read out, and a graphic display corresponding to the magnitude of the plurality of statistical values is displayed on the screen display 47.

The storage unit 46 is rewriteable, and includes a program for controlling the touch panel display 47 functioning as an input device, a program for calculating the statistical value of the weft and timing timing, and a program for performing alarm processing. Software is stored, and the average value, standard deviation, etc. as calculated statistical values are stored in association with the sampling pick number.

The processing unit 49 is a CPU, a so-called microprocessor, and controls the screen display 47 according to the software stored in the storage unit 46.

As described above, the display means 41 receives the statistical value calculated by the statistical value calculating means 40 at the end of each sample period, and stores it in the memory together with the number of samples (sampling number) and the sample number (sampling pick number). And the time scale on the display screen of the display, that is, on the time series where the sampling pick is the horizontal axis and the sampling pick number of the current weft is set to "0". Graphic display such as bar graph and bend line graph. The operator switches the display of the statistical values in accordance with the number of samplings and the number of sampling picks, or checks the non-weft non-critical situation for each real type and performs appropriate correspondence.

The processing unit 49 can also be configured to perform an alarm operation as necessary. For this reason, in the processing part 49, the threshold value for an alarm is set previously with respect to 1 or more of the said statistical value, and during the weaving operation, the processing part 49 is a statistical value from the statistical value calculating means 40 and the threshold value corresponding to this. In comparison with the above, it is also possible to output an alarm when the statistical value exceeds the corresponding threshold. In addition, the processing unit 49 displays a graphic display corresponding to the size of the statistical value, and displays at least one of the alarm output situation or the occurrence of weft-injection miss over time and on the same screen. ).

4 shows an example of display during operation by the screen display 47. On the screen, bend line graph A of the average value of the weft arrival time (weft reaching angle θ) in the number of 32 picks, the bar graph which connected the maximum value and the minimum value of the weft reaching time (the weft reaching angle θ) in the number of 32 picks B and a curve graph C of the standard deviation of the weft arrival time (weft arrival angle θ) are illustrated. The number of samples can be selected by the sample number selection button 43 of &quot; 32 &quot;, &quot; 100 &quot; and &quot; 1000 &quot; The display portion on the screen of the screen display 47 can be scrolled by 50 samples by the triangle mark scroll button 44 in the left and right directions. When the reset button 45 on the lower right of the screen is pressed, the displayed display data is erased, new display data is received and displayed. Preferably, the screen display 47 can be multi-colored (colored), and the display of the graphs A, B, C, axes, etc. can be displayed in different colors. . In addition, in the case of the multi-color weft loom, it is also possible to switch to the time-series statistical graph display of the weft of the selected yarn type by the selection operation of the thread type of the weft yarn 4 on the display means 41.

Thus, from the display contents of the screen display 47, the operator can visually confirm the time course change of the statistical value of the weft angle of arrival. Therefore, based on the change state of the graphical value displayed graphically in response to the progress of the exercise in this way, As a result, it is possible to reset the wefting condition so as to improve the quality of the weft supplying chamber or to stabilize the wefting, which is advantageous in the management of the wefting.

In the field of the loom factory, the cause can be easily identified by the time series change of two or more values of the display contents. For example, 1) If the average, maximum and minimum values of weft angles fluctuate slowly, and the fluctuations fluctuate upwards or downwards for several tens of minutes or several hours, it is assumed that it is due to the compressor pressure fluctuation of the weft inlet nozzle. can do. 2) When the weft stop is frequent, the pressure shortage of the sub-nozzle 11 can be considered because the average value, the maximum value, and the minimum value are different from each other (larger), so that the pressure can be solved by increasing the pressure. 3) The maximum value and the minimum value do not change much, but when the average value changes and the standard deviation increases, the quality of the supply body can be predicted to be abnormal, which can solve the supply body 3 by exchange. 4) As the diameter of the thread feeder 3 decreases, the average value of the angle of arrival should decrease (advanced), but when it is increased (delayed), it is considered to be higher than the quality of the thread feeder 3 The supply body 3 can be eliminated by exchange. In this way, there is a display function by the weft weaving status display device 20, that is, when there is a problem in weft weaving, there is a graphic display function of the weft reaching timing statistics up to the present accumulated point. Thus, for example, a weft non-stationary status display / analysis device configured independently of the setting machine of the loom is connected after a problem occurs in wefting, so that it is not necessary to continue operation as it is for the cause identification. It is advantageous in that the cause can be immediately identified from the display contents of the display device 20.

In addition, the loom may stop due to thread break during sampling of the weft arrival time. However, the weft angle at the time of restarting (when the loom rotation speed becomes excessive) is often different from the normal operation state, and the statistical value is inaccurate when calculating the statistical value including this data. Therefore, when a problem occurs, except for the data at the excessive state or the weft stop occurrence, the statistical value is calculated, so that such an irrationality can be avoided.

More preferably, as described above, the processing unit 48 is preset with alarm thresholds for at least one of four kinds of statistical values (maximum value, minimum value, average value, and standard deviation), and during the weaving operation, the processing unit ( 49 compares the statistical value from the statistical value calculating means 40 with a threshold value corresponding thereto, outputs an alarm when the statistical value exceeds the corresponding threshold value, and together with the graphic display corresponding to the size of the statistical value, At least one of the alarm output situation or the occurrence of the weft miss is displayed on the screen display 47 on the same screen as time passes.

Fig. 5 shows a so-called setting screen of &quot; weft reaching status / alarm setting &quot; of the touch panel type screen display 47. Figs. In Fig. 5, in order to set the threshold value for the alarm for the weft color 1, when the failure message mark &quot; 1 &quot; corresponding to the actual supply body 3 displayed on the screen is touched, the selected failure message (real supply body ( 3)] mark is displayed by another unselected failure key mark and a different state (hatching on the drawing), so that the state of the alarm can be input to the weft color 1. In addition, wesacal 1, wesacal 2, wesacal 3, and wesacal 4 are the thread types of the weft yarn 4, and the numbers correspond to the numbers of the main nozzles 10 of the multi-color weft yarn.

'Alarm ON / OFF' in the left column of the screen of FIG. 5 designates the weft color 1 (hatching display), and is a part for specifying the alarm selection or non-selection for each pick, average value, and standard deviation. By touching the corresponding column of the rectangle, x is displayed and the alarm ON is selected. By touching this column again, the x is no longer displayed and the alarm OFF is selected. By selecting 'Alarm ON / Alarm OFF', it is possible to select whether to output an alarm when the target statistical value exceeds the threshold during weaving. At the alarm ON, for example, the loom can be stopped or an external tower lamp can be turned on to alert the operator.

With respect to the average value, the upper limit value and the lower limit value can be set for each pick from the viewpoint of monitoring the allowable range, and the upper limit value can be set for the standard deviation. More specifically, the "macro" monitors whether or not the weft arrival timing of one sampling number detected based on the measured value over the sampling number is outside the allowable range. Specifically, the maximum requested value is the upper limit value. The alarm is triggered by crossing over or below the minimum. With respect to the "average value", an alarm is generated when the requested average value exceeds the upper limit value or falls below the lower limit value. For the "standard deviation", an alarm is generated when the requested standard deviation exceeds the upper limit. The upper and lower limits for the "pick" and the "average value" are numerically set with the angle of rotation of the main shaft 33 corresponding to the weft arrival time as a measure. On the other hand, the "standard deviation" is set with numerical values as a measure. In addition, it is not necessary to monitor the lower limit of the "standard deviation". The setting of these values can be set as a unique numerical value similarly to the other wesa color 2, wesa color 3, and wesa color 4. In setting these thresholds, an operator first displays a numeric pad (not shown) for numerical input by touching a corresponding input field on a touch panel type screen, and then inputs numerical values by touching the corresponding numbers in order. can do.

The right column of the mean value and the standard deviation is a column for setting the average value and the number of sampling when the standard deviation is calculated. Select or enter by numeric keys (not shown). The sampling number can be set as a unique value for the other wesa color 2, wesa color 3, and wesa color 4.

6 is an example of the "macro" "alarm" output screen of the screen display 47, and is an example of display of the screen when the average value of the weft arrival timing exceeds the upper limit threshold, that is, at the time of arrival delay. In either of ON state and ON state, when the target statistical value exceeds the threshold, the alarm contents and occurrence time are stored in the storage unit 46, and the alarm occurrence status is displayed on the screen. . As described above, when the alarm is ON, the loom is stopped or an alarm signal is output and an external stop lamp display tower lamp or the like is turned on to alert the operator.

Next, FIG. 7 shows another display example of the screen display 47. FIG. In this display example, the statistical values of the weft non-spinning situation are graphically displayed corresponding to the size of the yarn type [weft color 1] of the weft yarn 4 selected on the screen. Further, if necessary, detailed information such as the stopper of the weft-injection miss, the contents of the alarm, and the time of occurrence thereof may be displayed on the same screen on the graphic display screen. This display can be switched for each thread type in the same manner for the other wesa color 2, wesa color 3, and wesa color 4.

In addition, instead of, or in addition to, the alarm output and the weft inlet occurrence situation, the same screen display is used to cope with the adjustment of the weft injector and the replacement of the actual supply for the alarm or the weft inlet miss. In this case, the time and the countermeasure contents can be displayed in a customized manner. When such information display is performed, they can be displayed in a form added to the conventional display contents by operation of a screen not shown.

In addition, although the sensors 24 and 25 which detect the weft 4 and generate | occur | produce a real signal are arrange | positioned in the vicinity of the textile end of the opposite side to the weft, in the Example of FIG. 1, it is not limited to this, but it is upstream from this. A sensor disposed on the side, for example, a sensor disposed in the opening 14 of the inclined 13 may be used for the purpose of detecting the weft yarn 4 in the non-column state. In addition, the sensor is not limited to directly detecting the front end of the weft yarn 4 in the non-liquid state, but may be a sensor that detects indirectly. Specifically, by slowly loosening the weft yarn 4 times a predetermined number of times from the weft length measurement storage device 5, it is possible to grasp that the front end of the weft yarn 4 in the non-slip state reaches the position corresponding to the loose weft length. Use points. Therefore, for the weft length measurement storage device 5, a loosening sensor for detecting the passage of the loose weft yarn 4 is provided.

In addition, about the circuit structure shown in FIG. 2, after replacing the sensor 24 with the said unwinding sensor, after weft initiation starts between the comparator 27 and the weft arrival time detection means 30, 1 is carried out. When the above predetermined number of times of signals have been generated, a circuit for outputting the real signal S1 is fitted. By the generation of the real signal from this circuit, the weft yarn 4 of the length corresponding to the predetermined number of times is drawn out from the length measuring storage device 5 by the injection of the weft filling fluid, and the front end of the weft yarn 4 is removed. It is possible to indirectly detect that the position has reached the position corresponding to the unwinding winding number, that is, the front end of the weft yarn 4 has reached the predetermined position. The apparatus for detecting the gastrointestinal non-weapon situation using a sensor or a circuit provided in this way is included in the technical scope of the present invention.

2 and 3, the statistical value calculating means is configured as a block different from the display means 41, but may be modified so as to be processed into one block. This also applies to the weft arrival time detecting means 30 and further to the first weft filler 21 at the upper end thereof.

The function of the weaving state display device 20 of the loom according to the present invention can be realized by a program using a computer. Therefore, the weft arrival time detection means 30, the statistical value calculation means 40, and the display means 41 of the weft weaving status display device 20 of the loom are used for input / output means, storage means, arithmetic (control) means of a computer. It can be substituted by. The present invention is not limited to the air jet loom, but is also applicable to other fluid jet looms (water jet looms) capable of detecting the weft arrival time.

Claims (8)

On the basis of the weft arrival time detection means 30 for detecting the weft arrival time based on the real signal obtained by detecting the weft yarn 4 on the weft non-maintenance path; and based on the plurality of weft arrival times detected over a predetermined number of picks. And storing a plurality of statistical values calculated by the statistical value calculating means 40 in correspondence with the operation progress and storing the plurality of statistical values calculated by the statistical value calculating means 40 in response to the operation progress. And a display means (41) for graphically displaying a plurality of statistical values corresponding to the size thereof over time. 2. The weaving situation display device (20) of claim 1, wherein the statistical value is one or more of a maximum value, a minimum value, and a standard deviation and an average value. 2. The weaving situation display device (20) according to claim 1, characterized in that a plurality of sampling elements for calculating statistical values can be selected, and the graphic display can be switched in accordance with sampling elements. 2. The weaving situation display device (20) according to claim 1, characterized in that each of said statistical values of the number of sampling picks corresponding to one package supply is stored as said statistical value to be stored. The weft weaving status display device (20) of claim 1, wherein the statistical value is calculated based on the plurality of weft arrival times sampled for each color of the weft yarn (4). The display unit (41) according to claim 1, wherein said display means (41) includes a storage unit (46) for storing a plurality of statistical values output from said statistical value calculating means (40) in correspondence with sampling pick numbers, and said screen display means (41). In response to a request from the storage unit 46, the plurality of statistical values are read from the storage unit 46, and a processing unit 49 for displaying a graphic display corresponding to the size of the plurality of statistical values on the screen display 47 is provided. Weaving situation display device 20 of the loom characterized in that. The threshold value for an alarm is set in advance in the said processing part 49 with respect to one or more of the said statistical value, The said processing part 49 is made from the said statistical value calculation means 40 during a weaving operation. Weaving status display device (20) of the weaving machine, characterized in that the alarm value is output when the statistical value exceeds the corresponding threshold value, compared with the corresponding threshold value. 8. The processing unit (49) according to claim 7, wherein the processing unit (49) displays a graphic display corresponding to the size of the statistical value, and displays at least one of the alarm output situation or the occurrence of weft slipping over time and on the same screen. Weaving situation display device 20 of the loom, characterized in that for displaying.

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