JPH0627365B2 - Fineness yarn measuring device - Google Patents

Description

Detailed Description of the Invention

[0001]

[Industrial applications]

The present invention measures the fineness distribution, the average value of the fineness, the standard deviation, the maximum deviation, etc. of a plurality of fineness yarns sampled to detect whether or not the reeling machine has reeled a yarn of a predetermined fineness. The present invention relates to a measuring device for fineness yarn.

[0002]

[Prior art]

As a means of knowing whether the yarn to be reeled in a yarn manufacturing factory has a predetermined target fineness, the reeled-up yarn is wound for a certain length from a small frame, and the fineness is detected by measuring its weight. .

For the fineness measurement for the purpose of fineness management in this yarn manufacturing plant, from 10 to 20 small frames in which the yarn is rolled up,
10 to 20, a total of 100 to 200 fine yarns around the frame 1,125
It depends on the central fineness using a measuring instrument of m, but it is 100
It was wound up at each rotation number of 200 times, 400 times and 400 times, stopped after cutting and collected. For a fineness of 33 denier or less, 200 fine yarns (225 m) 200 are required, and the fineness is detected by measuring the weight one by one after air drying. For the measurement of fineness yarn by the calibrator, the fineness yarn is hung on the calibrator one by one and the value when the pointer is stable is recorded. In the case of 200 times fineness yarn, the yarn length is 225 m, and when the weight is 0.02 g, it is 1 denier, so it is possible to easily know the number of denier by measuring the weight of the fineness yarn. It would be good if the yarn length and the weight of the yarn at that time could be measured.

However, the weight of the yarn is measured in an air-dried state. There is no fine standard for the moisture content of raw silk to be air-dried, but the moisture content of raw silk is almost 8 to 11
It is said to be about%. In order to become air-dried, it is desirable to leave it for one day and night, but even if it is left for one day and night, the moisture content of raw silk is affected by 1% or more depending on the climatic condition at that time, and as a result, the measured denier It will also affect the number.

Then, the measured values of a large number of fineness yarns measured above are obtained by hand calculation of the average value, standard deviation, maximum deviation and fineness distribution of fineness. For this reason, it takes 40 minutes to 1 hour at the earliest to calculate the statistical value from as many as 200 fineness yarns, and it takes half a day to adjust the fineness of the reeling machine after knowing the measurement results. The result cannot be obtained until later or the next day.

As described above, there has been a situation in which the fineness measurement for the purpose of fineness management requires labor and time, and the response time for making the reeling machine correspond to a predetermined desired fineness is considerably slow.

[0007]

[Problems to be Solved by the Invention]

In view of the above points, an object of the present invention is to obtain a fineness yarn measuring device which eliminates the labor required for measuring the fineness yarn and can measure the fineness yarn and calculate data in an extremely short time. To do.

[0008]

[Means for Solving the Problems]

A fineness yarn that has a dry yarn device, a yarn length measuring device, a yarn feeding device, and a weight measuring device, and continuously feeds a yarn having a constant moisture content into the weight measuring device without cutting it into predetermined unit lengths and measures the weight. In the measuring device, the weight measuring device and the personal computer were electrically connected so that the values of fineness distribution, average fineness, standard deviation, maximum deviation, etc. could be calculated and displayed.

[0009]

[Action]

An appropriate number of fineness yarns are collected from the plurality of small frames, the small frames are placed on the small frame base, and the yarns are pulled out. The drawn yarn is dried to a predetermined moisture content by a dry yarn device, and while it is being held at a predetermined tension by a tensor, the length of the yarn is measured and jetted into a jet air, and the yarn is sent to a measuring instrument. When the meter is sent for a predetermined length, the metering is performed, and the data is sent to the personal computer and stored. Next, the yarn of the predetermined length is again sent to the weighing machine and weighed, and this is repeated. After repeating this process for the set number of times, the personal computer performs statistical processing such as the average value, standard deviation, maximum deviation, and fineness distribution of the fineness, and displays and prints the result.

[0010]

【Example】

 An example of implementation of the device of the present invention will be described below with reference to the drawings.

The fineness yarn measuring device 1 of the present invention has a small frame 2 on which the yarn Y to be inspected is wound, a weight measuring device 3 such as an electronic balance, and a mounting table 5 on which a control box 4 and the like are mounted. The frame 6 is erected, and the frame 6 is provided with a yarn Y guide 7, a yarn traveling detection device 8, a dry yarn device 9, a tensor 10, a yarn length measuring device 11, a yarn feeding device 12, a yarn guiding device 13, and the like.

The yarn running detection device 8 is a U-shaped device having a slit formed in the center and runs the yarn in the slit portion to electrically detect the presence or absence of the yarn. The motor 14 of the yarn feeding device 12 is stopped when it cannot be pulled out.

The dry yarn device 9 is constructed as follows. Longitudinal dry yarn box 16 with air outlet 15 at the bottom
A plurality of drums 17 are provided in the upper part and the lower part, respectively, so that the yarn Y can meander and run. A door 18 is provided on the front surface of the dry thread box 16, and an air outlet 15 provided on the rear surface.
A baffle plate 19 for guiding the dry air blown from the air outlet 15 to above the dry yarn box 16 is provided on the front surface of the. A heater (not shown) is provided in the duct 20 continuing from the air outlet 15 so that the air from the sirocco fan 21 can be heated.

The tenser 10 presses two dish-shaped pressure plates 23, 23 inserted through the support shaft 22 with a spring 24, and adjusts a screw 25 screwed on the top of the shaft 21 as needed to adjust the yarn Y. Adjust the running tension.

The yarn length measuring device 11 has a drum-shaped detection pulley 26, which is designed to feed a yarn of a length of 1 m in 16 revolutions and emits one pulse signal in 16 revolutions. It is processed by the control box 4.

The yarn feeding device 12 comprises a drive pulley 27 having a V-shaped groove axially supported by the motor 14 and a driven pulley 28 fitted in the V-shaped groove. The driven pulley 28 has a ring 29 made of an elastic material such as rubber fitted in the center of the peripheral edge thereof.
The yarn Y is nipped between the innermost portion of the groove and the ring 29 to feed the yarn.

The motor 14 is preferably a variable rotation speed type brake motor, and more preferably a motor capable of slow start and slow down stop.

The yarn guiding device 13 includes the pair of pulleys 27, 28.
The yarn guide tube 31 and the yarn guide tube 31 which are opened at the upper end near the nip point of and are opened at the upper end of the weighing container 30 of the weight measuring device 3.
It is composed of a pressure air jet nozzle 32 opening to the upper opening of the.
Reference numeral 33 is a valve for connecting and disconnecting the pressure to the pressure air jet nozzle 32. Reference numeral 34 is a transparent cover surrounding the weight measuring device 3 and the weighing container 30, 35 is a data logging device, 36 is a personal computer, and 37 is a printer.

When the fineness yarn is collected by the above apparatus, it is carried out as follows. Small frame 2 for collecting fineness yarn
The thread pulled out from the length measuring device 11 is used to measure the thread length.
It is hung on the drum-shaped detection pulley 26. Then, by counting the number of pulses according to the number of rotations of the drum-shaped detection pulley 26 and incorporating it into the personal computer 36, the yarn length of 200 or 400 fineness yarns is measured by the personal computer 36, and when the constant yarn length is reached. The motor 14 is stopped to stop the yarn traveling. The weight of the yarn in the measuring container 30 at this time is taken into a personal computer and converted into a fineness and stored. Repeat this for the number of fineness yarns,
The next fineness yarn is continuously dropped as it is into the fineness yarn measuring container 30, and the weight difference from the accumulated weight up to the previous time is taken as the weight of the fineness yarn, and converted into fineness and stored. This fineness data can be saved as a data file.

The pulse signal from the yarn length measuring device 11 and the weight digital signal from the weight measuring device 3 are taken into the personal computer 36 by a cable via the data logging device 35.

The state of the yarn Y in the above measurement process is as follows. The small frame 2 is sufficiently moistened, and this small frame 2
The yarn Y nipped by the pulleys 27 and 28 of the yarn feeding device 12 and pulled out and dissociated is introduced into the dry yarn device 9 through the guide 7 and the yarn traveling detection device 8. The yarn Y is meandered up and down by the drum 17 in the dry yarn device 9, and is sent to the duct 20 by the sirocco fan 21 during this period, heated by the heater (not shown), and heated by the air outlet 15. The yarn Y moistened with air is dried. The yarn Y exists in the dry yarn device 9 for a length of 4 m, and as an example, it takes 2 seconds at a yarn speed of 120 m / min to pass therethrough, and the moisture content of the yarn is 8% to 11% during this period.

The yarn Y dried to the above water division ratio is
Is applied with a predetermined tension, the drum-shaped detection pulley 26 of the yarn length measuring device 11 is rotated, a pulse is sent to the data logging device 35, and the yarn Y drawn out to the yarn sending device 11 is the weight of the yarn guiding device 13. The measurement container 3 of the measuring device 3 is dropped and accumulated. The compressed air jetted from the jet nozzle 32 assists the yarn Y in the yarn guide tube 31 to run downward, prevents the yarn Y from being entangled in the pulleys 27 and 28 of the yarn sending device, and measures the fineness. The yarn Y is randomly deposited in the container 30. Since the accumulated yarns Y are dried, they are not adhered to each other by sericin. While the above thread is running, the program (BASI
The pulse number, which is the original data for yarn length conversion, is read at intervals of about 1 / 10th of a second by C), and when the set length yarn length is reached, the pulleys 27, 28 of the yarn feeding device 12 Send a command to stop the rotation. When the pulleys 27 and 28 are stopped instantaneously by the brake motor 14, the weight measuring device 3
A data request command is sent to. When the display of the weight measuring device 3 becomes stable, the value data is sent to the personal computer 36. The personal computer 36 converts the data into a weight value and further converts the weight into a fineness and stores it. After repeating this repetition for the set number of fineness yarns, the personal computer performs statistical processing of the average value, standard deviation, maximum deviation, fineness distribution, etc., and the printer 37 displays and prints the results.

At this time, if a trouble occurs such that the yarn Y is cut in the middle, or the yarn Y for measuring the fineness is finished less than the set number of times, the yarn breakage detection signal of the yarn traveling detection device 8 forces Then, the yarn feeding device 12 is stopped.
At the same time, when the number of pulses from the thread measuring device 11 per unit time is increased (2 seconds is preferable) on the personal computer 36, and if the number of pulses is not increased, the personal computer 36 displays an input screen for selecting whether to stop or continue. Become. If it is cut, the fineness measurement is continued by selecting the continue command after knotting. If the yarn for measuring the fineness is finished, the fineness yarn count (thread length) up to that point is statistically processed.

[0025]

【The invention's effect】

Since the device of the present invention is configured as described above in detail, it is possible to measure the fineness by measuring the predetermined length with a conventional measuring instrument, cutting it with a predetermined unit length, stopping it, and observing it with a measuring instrument. It is possible to know the fineness distribution, the average value of the fineness, the standard deviation, the maximum deviation, etc. by continuously measuring the weight of the yarn unwound from the small frame for each predetermined unit length without requiring any complicated means. Therefore, it has become possible to know the state of fineness, which could not be known until the next day, in a sufficiently short time. Therefore, the fineness control such as the central fineness adjustment and the correction of the fineness deviation can be significantly speeded up, which greatly contributes to the quality control of raw silk.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a device of the present invention.

FIG. 2 is a plan view of a roller portion of the feeding device.

[Explanation of symbols]

 1 fineness yarn measuring device 3 weight measuring device 9 dry yarn device 11 yarn measuring device 12 yarn feeding device 36 personal computer Y yarn

Claims (1)

[Claims] 1. A dry yarn device, a yarn length measuring device, a yarn feeding device, and a weight measuring device are provided, and a yarn having a constant moisture content is continuously fed into the weight measuring device without being cut into predetermined unit lengths, and the weight is measured. A fineness yarn measuring device for measurement is characterized in that a weight measuring device and a personal computer are electrically connected so that the fineness distribution, the average value of the fineness, the standard deviation, the maximum deviation and the like can be calculated and displayed. Fineness yarn measuring device.