JPH059844A - Method for correcting stopping cause of loom - Google Patents

Abstract

PURPOSE:To heighten the reliability of data on the control of a loom by referring the cause of the preceding stopping and the subsequent operation state of the loom at the this time stopping and, if necessary, correcting the cause of the preceding stopping. CONSTITUTION:When it is judged that the this time stopping is caused by a warp and further when it is judged that an operation period from a re-operating time after the subsequent stopping to the next stopping time is shorter than a prescribed period and that the subsequent stopping is caused by a weft, the cause of the preceding stopping is corrected by the cause of the stopping by the warp, on this occasion in a process for recording at least the cause of the stopping generated by the warp or weft as the stopping cause for each loom in a weaving operation. The correction of the preceding stopping cause plural times permits the more accurate judgment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically correcting the recorded contents of the previous stop cause in the process of storing the stop cause of the loom.

[0002]

2. Description of the Related Art Generally, the causes of stoppage of a loom can be roughly classified into a weft cause caused by a weft thread and a weft insertion device and a warp cause caused by a warp thread. Each of these can be detected by a known weft insertion detection feeler, dropper device, or the like.

Occurrence of a stop cause during weaving is detected by the above-mentioned weft insertion detecting feeler, etc., and as a result, the loom is automatically stopped and can be restarted by a weaving machine or waiting for restoration by the weaver. Is set to a different state. At this time, the cause of the stop is recorded from the viewpoint of maintenance and inspection management of the loom and quality control of the woven fabric.

By the way, there are various detailed causes of the stoppage. For example, there are show topics, long picks, bent topics, tip troubles, dead ends, warp yarn fluffs, etc. If these detailed stop causes can be detected directly by the feeler, the detailed stop causes will be reliable. However, at present, a sensor can roughly detect the cause of the sideways movement, the cause of the warp, etc., but a sensor that can accurately determine the detailed cause of the stop has not been put into practical use.

Therefore, Japanese Patent Laid-Open No. 54-42461 discloses manually inputting a detailed stop cause that cannot be grasped by a sensor.

[0006]

[Problems of the above technology] According to the above technology, the detailed cause of the stoppage may be erroneously input.
There was a problem that the reliability of management data was low. In other words, even if the result is that the weft insertion detection feeler detects an abnormality, the true cause may be the warp thread.If you do not notice this, you may erroneously enter the detailed stop cause related to the weft thread. I had to do it.

For example, loose warp yarns, fluffs generated on the warp yarns and the fluffs interfering with the adjacent warp yarns, or the defective opening device causes defective opening, resulting in poor weft insertion. May occur. In this case, even if an abnormality is detected by the weft insertion detection feeler, the cause of the stop should be input as warp yarn looseness, warp yarn fluff associated with the warp yarn, or opening device failure.

After a weft insertion failure occurs and the loom is stopped, an operator checks the weaving front, and if the weft thread is stopped with the warp thread hanging, it is apparent that the opening failure due to loose warp thread or the like is the cause. Can be determined. However, in the case of poor opening, it often happens that the tip of the weft thread is bent or the tip of the weft thread is entangled. Since this is not different from the state of normal weft insertion failure such as bent topic or tip entanglement, it is very difficult to determine that it is due to an abnormality in the warp thread.

Further, according to the prior art, when a mistake in the input of the detailed cause of the stop is noticed, it is presumed that the input is corrected manually. However, according to the artificial setting input,
Incorrect judgments and input errors cannot be avoided, and it is not possible to accurately grasp the cause of the stop.

When the warp yarn breakage detector such as the dropper device is activated, it can be determined that the warp yarn is loose or the warp yarn is broken. At this time, based on the output signal of the warp yarn breakage detector, the cause of the stop may be warp yarn looseness or warp yarn breakage, and no correction is necessary in the future.

[0011]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to determine the cause of the last stop by referring to the cause of the present stop, the cause of the last stop, and the operation state after the last stop when the loom is stopped this time. To improve the reliability of the administrative data.

[0012]

According to the present invention, in the process of recording at least the warp cause and the weft cause as stop causes for each stop during weaving, the present stop cause is a warp cause.
In addition, when the operating period from the restart time after the previous stop to the current stop time is shorter than the predetermined period, and the cause of the previous stop was determined to be the cause, the cause of the previous stop is I am trying to automatically correct the cause.

Generally, even if the result is that the machine is stopped due to poor weft insertion, if the true cause is warp thread loosening, warp thread fluff, etc. After starting, it will stop again with the same phenomenon within a relatively short time. The present invention focuses on this fact. If the true cause is loosing warp yarns, and the poor weft insertion caused by the poor opening caused by it, the operator could not discriminate it and erroneously made a detailed stop cause, for example, entanglement at the tip. Suppose you typed it. At this time, according to the present invention, when it is possible to determine that the operation period due to the subsequent restart is shorter than the predetermined period and the cause of the present stop is warp yarn looseness, the previous detailed The cause of the stop is also determined to be warp thread looseness, and the detailed cause of the previous stop is automatically corrected to be warp thread looseness, like the cause this time.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows a system configuration for carrying out the method of the present invention. Recording device for the cause of the loom stop 1
Is a horizontal feeler 2, a vertical feeler 3, another feeler 4 for detecting a catch cord break, a comparator 5,
It is connected to a detailed stop cause determination / input device 6.
The comparator 5 includes a setter 7 and a memory 8 for a predetermined period.
Is connected to the measuring device 9 for the operation period via.

When the weaving machine is stopped during weaving due to a weft cause, a warp cause, or another stop cause corresponding to the feeler 4, the recording device 1 outputs the weft feeler 2, the warp feeler 3 or the other feeler 4. Input the signal directly and record it on paper or a floppy disk.

On the other hand, the worker confirms the cloth fell of the stopped loom, judges the detailed cause of the stop, and inputs it to the detailed stop cause determination / input device 6. The judgment / input device 6 sends it to the recording device 1. Therefore, the recording apparatus 1 records the stop cause that can be directly detected by the horizontal feeler 2, the vertical feeler 3, and the other feeler 4, and also records the detailed stop cause determined from the factors. It will be different.

On the other hand, the operation period measuring device 9 measures the period from the last stop time to the current stop time, that is, the operation period, by inputting the operation signal of the loom as shown in FIG. It is sent to the container 8 and stored there.

After that, when the loom restarts weaving and the cause of stop occurs again, the same operation as described above is repeated, and the cause of stop and the detailed cause of stop are recorded together.

After that, the recording apparatus 1 executes the program of the correction function based on FIG.

First, the cause of this stop = vertical cause? If the determination is YES and the result is YES, the operating period ≦ the predetermined period? Is made by the comparator 5, and when the result is YES, the cause of the previous stop = the horizontal cause? Is judged. YES here
In this case, the cause of the previous stop is based on an erroneous judgment, and the cause of the previous stop is corrected to the vertical cause that is the cause of the present stop. In addition, in each of the above judgment processes, when NO, the cause correction program is terminated without correcting the cause of the previous stop.

[0021]

[Embodiment 2] FIGS. 4 and 5 are for making the judgment of the above embodiment more accurate by correcting the cause of the past stop based on a plurality of operation periods in the past. That is, as in the above-described embodiment, it is possible that the fact that the driving period was short in the judgment based on the past driving period only happened to be the true cause. On the other hand, this phenomenon can be excluded by determining the operation period of the past several times, and a more accurate determination can be performed.

After the flow chart for correcting the cause is started, the cause of this stop = the vertical cause? Is judged, YE
If S, then the previous operating period T1 ≦ predetermined period? ,
Pre-preceding operation period T2 ≦ predetermined period? If both are determined and YES, then the previous stop cause = horizontal cause? , The cause of the last stop = horizontal cause? When the judgments are made sequentially and both are YES, it is judged that correction is necessary and the cause of the previous and previous stop is corrected and recorded as the previous stop cause → vertical cause, before-previous stop cause → vertical cause. It If NO in these judgment processes, the judgment of the previous time and the time before the previous time is considered to be highly reliable, and the correction is not performed.

In the above embodiments, the operation period may be the number of weaving picks instead of the time. In addition, instead of manually inputting the detailed stop cause, the applicant separately applied the proposal, and automatically determines it based on the repair operation specific to the detailed stop cause, and automatically inputs this. You may

[0024]

According to the present invention, in the process of recording the cause of the stop of the loom, the cause of the previous stop is determined based on the result of comparison between the cause of the present stop and the cause of the previous stop, and the operation period from the last time to the present time. Since the data is automatically corrected, the reliability of management data is improved.

Further, when the cause of stoppage and the operating period over a plurality of past times are used, more accurate correction becomes possible.

[Brief description of drawings]

FIG. 1 is a block diagram of a system for performing the method of the present invention.

FIG. 2 is a time chart diagram of driving progress.

FIG. 3 is a flow chart of correcting the cause of a stop.

FIG. 4 is a time chart diagram of the progress of operation.

FIG. 5 is a flowchart of a stop cause correction program according to the second embodiment.

[Explanation of symbols]

1 Recording device 2 Horizontal feeler 3 Vertical feeler 4 Other feeler 5 Comparator 6 Detailed determination / input device of the cause of stop 7 Setting device for a predetermined period 8 Storage device 9 Measuring device for operating period

Claims (2)

[Claims] 1. In the process of recording at least the warp cause and the weft cause as stop causes for each stop during weaving, the present cause of stop is due to the warp and the next cause from the restart time after the previous stop. A loom characterized by correcting the cause of the previous stop to the vertical cause of the present stop when the operating period up to the stop time is shorter than the predetermined period and it was determined that the cause of the previous stop was the horizontal cause. How to correct the cause of the stop. 2. The method of correcting the cause of the stop of the loom according to claim 1, wherein the cause of the previous stop is set a plurality of times.