JPS6315350Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a fuzz detection device that electrically detects the fuzz of raw yarn during the warping or sizing process, and records the number of fuzz occurrences while determining the size relationship of the fuzz. Regarding.

For example, fluff is generated from the raw yarn during the warping process, and this fluff is detected by a fluff detector and used as information for the subsequent processing process.

By the way, the size of the fluff that can be detected is
As seen in No. 65063, it can be set appropriately by adjusting the sensitivity adjuster of the fluff detector. However, since conventional devices are equipped with only one such detection means and sensitivity adjustment means, it is difficult to distinguish between the size of fluff, and it is therefore difficult to obtain the appropriate information necessary for the next process. I'm in a state where I can't. For example, in the sizing process, information on small fluffs is important, whereas in the weaving process, only large fluffs are of concern. Despite this situation, conventional detection devices cannot distinguish between the sizes of fluff, and therefore cannot separate counts for each size of fluff.
In the weaving process or sizing process, individual measures cannot be taken for large or small fuzz.

Therefore, the purpose of the present invention is to distinguish the size of fluff, count each small fluff and large fluff, and record the counted contents in relation to the length of the raw yarn, for example, on a recording paper. .

Hereinafter, the structure and operation of the present invention will be specifically explained based on an embodiment shown in the drawings.

First, FIG. 1 shows the configuration of a fuzz detection device 1 of the present invention. This fuzz detection device 1 is a yarn 2
a detection means 3 for detecting fluff; a first discrimination circuit 41 for identifying the size relationship of fluff;
A discrimination circuit 42, a counting circuit 5 for separately counting pulses as outputs thereof, and a printer 6 for recording the counted contents.

The detection means 3 includes a light projector 31 and a light receiver 32.
The two are optically compatible with each other by sandwiching the yarn 2 between them. The light receiver 32 is connected to the input end side of a first discrimination circuit 41 and a second discrimination circuit 42, respectively. These discrimination circuits 4
Reference numerals 1 and 42 connect a signal amplifier 43, a comparison circuit 44, a Schmitt circuit 45, and a relay drive circuit 46 in series, respectively.
4 is connected to a sensitivity adjuster 47.

The relay drive circuits 46 on the output side are connected to counters 51 and 52 inside the counting circuit 5, respectively. One counter 52 is
Although it is an integration type, the other counter 51 is
It is an up/down counter, and its up input end is connected to the relay drive circuit 46, and its down input end is also connected to the input end of the other counter 52. These counters 51, 52
are connected to the printer 6 at their output ends. This printer 6 has a rotation detector 7,
The rotation of the feed roller etc. is detected, thereby indirectly detecting the length of the raw yarn 2, and the contents of the counters 51 and 52 of the counting circuit 5 are classified in relation to the length while recording paper etc. will be recorded sequentially.

Next, the operation of the fuzz detection device 1 will be explained.

When the plurality of yarns 2 are traveling in a sheet form, the light projector 31 is projecting light toward the light receiver 32 . Therefore, the light receiver 32 detects the occurrence of fuzz, generates an electric pulse detection signal proportional to the size of the fuzz, and sends it to the first discrimination circuit 41 and the second discrimination circuit 42. Therefore, those signal amplifiers 43 amplify the detection signals,
It is sent to the input end side of the comparator circuit 44. Here, the comparison circuit 44 compares the output level of the sensitivity adjuster 47 with a signal level corresponding to large fluff or small fluff contained in the detection signal,
Pulses corresponding to large fluff or small fluff are detected from the detection signal. The first discrimination circuit 41 detects a pulse that is equal to or higher than the signal level of a small fluff, and the second discrimination circuit 42 detects a pulse corresponding to a large fluff. Therefore, the first discrimination circuit 41
In addition to pulse signals corresponding to small fluff, pulse signals corresponding to large fluff are also detected at the same time. The detection signal of the comparator circuit 44 is sent to the relay drive circuit 46 via the Schmitt circuit 46 and becomes an output signal necessary for counting.

In this way, the first and second discrimination circuits 4
The output signals of 1 and 42 are sent to the input terminal of the counting circuit 5. Therefore, the counter 51 counts the output signal of the first discrimination circuit 41, and similarly, the counter 52 sequentially adds up the number of large fluffs. By the way, as already mentioned, the first discrimination circuit 41
This results in outputting not only small-fuzz pulses but also large-fuzz pulses at the same time. Therefore, the input signal of the counter 52 corresponding to the large fluff, that is, the output of the second discrimination circuit 42, is also output to the down input terminal of the counter 51, and when counting the pulse "1" of the large fluff, Make an action to subtract "1" from the fluff count value. As a result, the counter 51 increments only when the detection signal is greater than the signal level for small fluffs and smaller than the signal level for large fluffs. In this way, only the determination of pulses above a certain level is performed, but the numbers of small fluffs and large fluffs are respectively accumulated accurately.

On the other hand, the printer 6 detects the running length of the raw yarn 2, inputs the counting contents of the printers 51 and 52 for each certain length or each divided length, and sequentially records it on recording paper. I will record it. In this way, the occurrence of fuzz is sequentially recorded for each divided length or constant length of the yarn 2, while being identified as large fuzz or small fuzz.

On the other hand, the recording format of the printer 6 is to sequentially record the number of occurrences of large fuzz and small fuzz for each fixed length of the raw yarn 2, with large fuzz and small fuzz being distinguished. At the end, the total number is recorded. Therefore, by reading and statistically analyzing the number of fluffs generated, the operator can set or change the working conditions for the next process to the most appropriate values.

When the next step is a sizing step, small fuzz is mainly a problem. In addition, when the next process is a weaving process, the occurrence of large fuzz can be accurately grasped.
Based on this, conditions for stopping the loom are set. In this way, the conditions necessary for the next process are set depending on the content of the next process, so that operations such as stopping the loom and removing small fuzz during the sizing process can be performed in ideal conditions. This measure ultimately increases the operating rate of the machine, prevents deterioration of yarn quality, and means that quality control can be carried out in an ideal manner.

In addition, since such record contents indicate the characteristics of the raw yarn product at that rod through the warper process, etc., it can also be used as information to understand the characteristics and take appropriate measures in the original process. It can be useful.

In the above embodiment, the counting circuit 5 is composed of an up-down counter 51 and a counter 52, but as shown in FIG.
This can also be done by combining 3 and AND gate 54. In this embodiment, the counter 51 corresponding to the small fluff counts only when "H" level signals are input to both input terminals of the AND gate 53, that is, when there is a small fluff and it is not a large fluff. I will do it. Furthermore, the first
Although the circuit of the illustrated embodiment performs the subtraction inside the counting circuit 5, this function can also be performed by using a CPU (central processing unit).

In this invention, the size relationship of the fuzz in the raw yarn is electrically identified, the number of fuzzes generated is accumulated, and it is recorded by a printer, so there is a large amount of information, and therefore it is possible to Appropriate conditions can be set, and product quality can be controlled under ideal conditions. In particular, according to the present invention, although the first discrimination circuit and the second discrimination circuit discriminate only the signal level of the detection signal corresponding to large and small fluff, the subsequent two parallel counters Since the counter corresponding to small fluff increments only when a pulse corresponding to small fluff is generated, it is possible to count the generation of large and small fluff while separately separating them by setting only two signal levels. On the other hand, if two signal levels are set on the first discrimination circuit side and configured to identify only detection signals within those ranges, then the first discrimination circuit side will have two signal levels.
One comparator circuit and two regulators are required.
This increases the complexity of the circuit configuration.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the fuzz detection device of the present invention, and FIG. 2 is a block diagram of a counting circuit of another embodiment. DESCRIPTION OF SYMBOLS 1... Fuzz detection device, 2... Raw yarn, 3... Detection means, 41... First discrimination circuit, 42... Second discrimination circuit, 5... Counting circuit, 51, 52... Counter, 6...Printer, 7...Rotation detector.

Claims (1)

[Scope of utility model registration request] a fluff detection means 13 that detects fluff in the yarn and generates an electrical detection signal proportional to the size of the fluff;
A first discrimination circuit 41 that detects a pulse higher than a signal level corresponding to small fluff from the detection signal.
and a second discrimination circuit 4 that detects a pulse having a signal level higher than the signal level corresponding to large fluff from the detection signal.
2, a counter 51 that increments and counts the pulses of the first discrimination circuit only when the detection signal is higher than the signal level corresponding to small fluff and lower than the signal level corresponding to large fluff; 2
a counter 52 that adds up the pulses of the discrimination circuit;
A fuzz detection device 1 comprising a printer 6 that records the counts of these counters 51 and 52 as a function of the length of the yarn.