JPS5813643B2 - Jidou Sou Shihouhou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention mechanically senses when the raw silk thread being reeled reaches the fineness limit splicing point, and thereby automatically feeds and splices a large number of reeling threads. When reeling yarn using an automatic reeling machine, a freely movable fineness equivalent value detector is used to detect changes in the fineness of the yarn during reeling.
This is an automatic silk reeling method that adjusts the fineness sensor in accordance with changes in boiling cocoons, reeling conditions, etc., and its purpose is to detect changes in raw materials, cocoons, reeling conditions, etc. consciously or unconsciously during reeling. When the fineness sensor detects a change in the fineness joining point, the change in the fineness bonding point detected by the fineness sensor can be detected economically in a short period of time without interrupting reeling, and moreover, for an extremely large number of reeled yarns, It is possible to correct the correct fineness limit welding point, and it is possible to extremely improve the raw silk quality, especially the fineness performance.

As is well known, the automatic silk reeling machines currently in practical use use constant fineness sensing, which is a machine that detects when the raw silk being reeled has reached the fineness limit point. This system senses the situation and automatically feeds and attaches the cocoon.

For example, when reeling raw silk of size 27, the fineness sensor is manufactured so that there is a fineness joining point between 25.8d and 26.1d, and automatic reeling is performed using this. .

However, as is well known, the silk reeling process involves changing the type of raw cocoons used, changing the cocoon boiling conditions, or changing the reeling conditions. It has been found that when the conditions change, the fineness limit contact point of the fineness sensor also changes automatically.

Therefore, if such a change in the fineness limit junction point of the fineness sensor does not occur, the desired central fineness can be achieved with high precision by strictly adjusting the fineness sensor, and the fineness can be adjusted precisely. The maximum deviation will be small, but in order to cope with such changes in the fineness junction point, in an actual automatic reeling factory, from an equipment perspective, it is necessary to add a chain balance to the fineness sensor. This allows fine adjustment of changes in the fineness joining point due to changes in conditions as described above, and also allows fineness yarn (tested yarn) to be adjusted when replacing a small frame during reeling. The material is sampled, dried, weighed, and tested for fineness.

However, the fineness test requires manpower and time to collect the fineness yarn, and the fineness yarn after the test cannot be used as a commercial product and must be discarded as a matter of course.

In addition, since fineness thread is usually collected when replacing the small frame,
The limit is once a day, and it would be unthinkable to adopt modern management methods such as discovering abnormal fineness, investigating the cause, and taking countermeasures.

From this point of view, the present inventors have conducted various studies on how to efficiently and economically perform fineness control, which is the most important control item in automatic yarn reeling. Using a fineness equivalent value detection and display device that is integrated and movable with a detector that detects changes in capacitance and a device that converts the capacitance of this detector into a numerical value and displays or records it, or records it together with the display. , the fineness of a group of reeled yarns of the entire automatic reeling machine is detected by moving the fineness equivalent value detection display device to detect the fineness equivalent value for some yarns among a large number of reeled yarns. This purpose was successfully achieved by reeling the yarn while monitoring the state of change.

Next, an example of implementation of the present invention will be described in more detail with reference to the drawings.

Now, in the automatic reeling machine used in the method of the present invention, 20 yarns are taken as one group, and this group is made up of 20 yarns back to back, with a total of 400 yarns in one group.
An example of what is used as a stand will be explained.

A is a reeling thread group consisting of 20 threads, adjacent to which B to K are arranged, and back to back with these reeling thread groups are reeling threads A'-K'. Groups are arranged, totaling 40
0 together make up one unit.

Automatic cording machines and automatic cording machines M are disposed at both ends of this reeling yarn group, respectively.

Furthermore, an automatic cocoon feeding machine N circulates around this area,
Cocoons are fed and spliced to the reeled threads when the need arises.

Even if automatic reeling is performed in this way, the above-mentioned phenomenon may occur, such as when the raw material cocoon is changed, the cocoon boiling conditions are changed, or the reeling conditions are changed. There is no way to confirm the change in the point, and the fineness sensor is only fine-tuned based on the small amount of data accumulated from past experience, and even then, there is no way that the fine-tuning will match accurately. It was not possible to confirm whether this was done or not.

For this reason, the present invention includes a detector that detects a change in the diameter of the reeled yarn as a change in capacitance as described above;
A device that converts the capacitance of this detector into a numerical value and displays it is integrated with a movable fineness equivalent value detection display device, which is used to move about 1 part of 400 strands, for example 20 strands, which is 5%. By detecting this, it is possible to confirm the state of change in fineness of the reeled yarn group of the entire automatic reeling machine, and this will be explained in more detail.

The principle for detecting the change in the diameter of the reeled yarn and displaying the fineness equivalent value is as follows.

A reeling thread 3 is run between a light source 1 and a photoelectric element 2 that receives light from the light source.

At this time, the yarn 3 is made to alternately repeat positions a and b.

When the thread 3 is at position a, when the light ray from the light source 1 is incident on the photoelectric element 2, the shadow of the thread is projected on the photoelectric element 2, so the light ray is reduced by that amount.
When the thread 3 is at position b, the entire amount of light from the light source 1 will be incident because the thread 3 is not present.
The output voltage from the photoelectric element 2 naturally differs depending on whether a thread exists between the light source 1 and the photoelectric element 2.

This output voltage is amplified by an amplifier 4 and applied to one input of a differential amplifier 5.

The output of this differential amplifier 5 is sent to an analog-to-digital converter 6.
It is also connected to an amplifier γ having a high amplification factor.

The output of this high amplification factor amplifier 7 is coupled to a voltage holder 10 via a switch 8 and an integrator 9.

Therefore, when the thread 3 is not present between the light source 1 and the photoelectric element 2, that is, in the state b, the switch 8 is closed, and the noise signal without a thread signal is transferred to the integrator 9. is charged, the output of the voltage holder 10 is added to the other input of the differential amplifier 5, and the servo mechanism is operated so as to make the output zero.

Furthermore, when the yarn 3 is present between the light source 1 and the photoelectric element 2, that is, in state a, the switch 8 is opened and the servo mechanism is excluded. It appears as an electrical signal proportional to volume.

Further, the output of the amplifier 5 applied to the analog-to-digital converter 6 is converted into a four-digit digital quantity at intervals of, for example, 0.1 seconds, and is displayed as a number on the fineness equivalent value display 11.

Along with this, the output from the analog-to-digital converter 6 is sent to a numerical recorder 1 such as a printer via a gate circuit 12.
3 and is recorded as a numerical value, but at this time, for example, a timer 1 that can adjust the time limit of the gate circuit 12 in 1 second increments.
By opening the output signal 4 intermittently for a short time at a desired time interval, the numerical recorder 13 records a 4-digit numerical value indicating the thickness of the reeled yarn at a desired time interval. Become.

Furthermore, the digital signal that has passed through the gate circuit 12 is sent to the arithmetic unit 15.
After the values are added sequentially, the average value or variance value over a certain period of time is calculated and recorded in the numerical value recorder 13.

When the numerical value recorder 13 records a value that deviates from the set value, it passes through a comparator (not shown) that checks this, and in the case of an abnormal value, the color of the printing ink is changed, or the recording is performed. It is even better if an appropriate symbol is recorded at the head or tail of the numerical value.

In this way, the value equivalent to the fineness of the running yarn is displayed on the display, or recorded, or recorded together with the display, but these displays and records can be moved at any time in the required reeling cord of the automatic reeling machine. To do so, do the following:

The above-mentioned components, namely the light source 1, the photoelectric element 2, and the computing device 1
All the equipment up to step 5 can be mounted on a moving trolley (not shown) and the moving trolley can be moved to the required reeling line, but in this case, the connection with the reeling machine is as follows. Just do it like this.

Among the above-mentioned components on the movable trolley, the light source 1, the photoelectric element 2, and other necessary parts associated therewith can be freely carried from the trolley.

For example, a detection rod 17 is provided at the tip of the upright rod 16.

This detection rod 17 is composed of a horizontal arm 18 and an upper and lower arm 19, forming a cross shape. One end of the horizontal arm 18 is connected to the upright rod 16, and the other end is connected to the third drum wheel 2 of the reeling machine. It can be screwed onto the mounting arm 21 of.

On the other hand, a drum wheel 22 is attached to the upper and lower ends of the upper and lower arms 19 of the detection rod 17.
, 23, and an eccentric roll 24 is rotatably mounted in the middle.

Further, a light source 1 and a photoelectric element 2 are attached below the upper and lower arms 19 with a gap between them, and the reeling thread can run freely within this gap.

A current from a power source (not shown) to the light source 1 is supplied to the upright rod 16 and the detection rod 17 by appropriate means, such as inserting a cord inside the rod, and output from the photoelectric element 2 to the amplifier 4. The voltage may be delivered by similar means.

Therefore, when it is desired to perform a detection display on a desired reeling yarn, the movable cart is stopped in proximity to the desired reeling yarn of the reeling machine, and the upright rod 16 having the detection rod 17 is connected to the reeling machine.
Remove the end of the horizontal arm 18 and the third drum wheel 2 of the reeling machine.
At the same time, the upright rod 16 is also fixed with a magnet to the handrail angle (not shown) of the reeling machine.

Thereafter, as indicated by the arrows in FIG. 3, the reeling thread 3 passes from the third drum wheel 20 to the fourth drum wheel 25, and then passes through the drum wheels 23 of the upper and lower arms 19 of the detection rod 17. The traverse 2 passes from the drum wheel 22 in contact with the eccentric roll 24, passing between the light source and the photoelectric element.
6 and is wound up into a small frame (not shown).

Due to the tension of the reeling thread 3 being wound around the small frame, the drum wheels 23 and 22 provided on the upper and lower arms 19 rotate, and the eccentric roll 24 is also rotated, so that the thread is rotated according to the rotation of the eccentric roll 24. Since the path is displaced as shown in a and b, when the thread 3 comes to the position a, the thread 3 is under the influence of the light ray from the light source 1, and when it comes to the position b, the light ray from the light source 1 comes under the influence of the thread 3.
This is to escape from being under the influence of the rays of light.

When the detection and display of the desired time is completed, the yarn 3 is removed from the drum wheels 22, 23 and the eccentric roll 24, and guided from the fourth drum wheel 25 to the traverse 26 for winding. At the same time, remove the screws between the third drum wheel mounting arm 21 and the horizontal arm 18, and remove the magnets between the upright rod 16 and the handrail angle of the reeling machine. All you have to do is move the movable cart to the location and repeat the above operations to fix it.

As described above, the movable cart detects and displays the value equivalent to the fineness of the reeled yarn, but as mentioned at the beginning of this explanation, the
To explain an example applied to one automatic reeling machine with 00 yarn, if this automatic reeling machine is reeling yarn of, for example, 21, the fineness limit junction point of the fineness sensor is 19.3d to 1.
9.6d, the target fineness is 20.5d, the standard deviation is 0.9d, and the maximum deviation is 1.5d. When the cocoon conditions are changed, the average fineness of raw silk reeled from newly supplied cocoons becomes either thick or thin, and this is because the fine fineness joining point This is because the denier has deviated from the adjusted denier.

Therefore, even though the fineness sensor has adjusted the fineness limit junction point with the target fineness as 20.5d, for example, it seems that the fineness limit junction point has been adjusted with the target fineness as 20.9d. The standard deviation and maximum deviation at the incorrect target fineness indicate the state in which it is working correctly.

In other words, the fineness sensor is functioning properly when the fineness is different from the initially adjusted fineness, that is, when the fineness is moved in parallel to either thick or fine.

If this incorrect fineness is large enough to affect the number of grains, such as 2d, 3d, 5d, etc., an abnormality in the number of grains will be discovered by the eyes of the staff, but 1d, etc. Small errors such as those shown below do not easily appear as an abnormality in the number of grains, and are difficult to discover.

In the past, this abnormality in the target fineness could only be attributed to the results of a fineness test by sampling fineness threads when replacing the small frame (approximately once every 8 hours).

Furthermore, even if the fineness sensor was finely adjusted when the raw material cocoon was changed, it would not be known whether the fine adjustment was successful or not until a considerable amount of time had elapsed, as in the explanation just now.

However, according to the method of the present invention, about 5%, that is, about 20 threads out of 400 threads in one reeling machine are selected in a sampling manner, and the fineness equivalent value is detected and displayed as explained above. By reading these values, it is possible to estimate whether the entire yarn reeling machine does not deviate from the target fineness during reeling, or to check whether the fine adjustments made were correct. be.

Of course, it is not necessary to have one mobile cart for each automatic reeling machine, but one for every corresponding number of automatic reeling machines, and it goes without saying that the number of moving carts may vary depending on the type of intended work.

In the above explanation, the change in the diameter of the picked-up yarn is detected as a change in capacitance, and the detected capacitance is converted into a numerical value and displayed. Of course, it is also possible to record numerical values instead of displaying them, or to perform both displaying and recording.

Furthermore, numerical values may be displayed or recorded by displaying or recording numerical values that appear moment by moment, or by displaying or recording an average value within a certain period of time.

In particular, the inventors of the present invention were able to confirm through numerous experiments that the following relational expression holds between the average value of numerical values detected in raw silk and the yarn diameter, so we converted the yarn diameter from the average value. It goes without saying that it may be displayed and recorded.

Yarn diameter - AXM However, A = 2.52, M = 1.65 Conventionally, fineness tube filling, which is an important management issue, has been done by stopping the reeling operation to collect the fineness yarn, or by changing the small frame at regular intervals such as every 8 or 10 hours. Changes in the fineness of the yarn, which could only be known by sampling the fineness of the yarn, can be seen instantaneously using numerical values, or this situation can be kept as a record, so appropriate instructions can be given as needed based on this. Moreover, even in an automatic reeling machine that has a large number of reeling threads, for example, 400 or 480 threads, it is possible to detect the entire machine by extracting and detecting a few strands from among them. Trends can be estimated, and during this detection, a mobile trolley carrying detection and display equipment elements can be used to go to the necessary location.
Not only is it extremely easy to detect, but it also eliminates the need to fix expensive detectors to each reeling thread, making it possible to carry out fineness tube embedding extremely economically. It is also possible to inspect the fineness sensor of the reeling yarn, and it is also possible to change the raw material cocoon during reeling.
It is possible to know in a very short time whether or not fine adjustment of the fineness sensor is appropriate due to changes in cocooning conditions or reeling conditions, and also to check whether the fineness sensor has become defective due to deformation over time due to long-term use or, for example, the number of rotations of the small frame. This invention has a great impact on fineness control technology in reeling factories, as it is easy to detect that yarn reeling conditions such as the reeling water temperature and the reeling water temperature naturally change, and that the yarn is reeled at a deviation from the target fineness.

[Brief explanation of drawings]

The accompanying drawings are for explaining an example of the implementation of the present invention, and FIG. 1 is a plan view of an automatic reeling machine, FIG. 2 is a block configuration diagram for detecting, displaying, and recording fineness, and FIG. 3 is a diagram showing the detection. It is a side view when the device is attached to a reeling machine.

Claims (1)

[Claims] 1. A detector that detects changes in the diameter of reeled yarn as changes in capacitance and a device that converts the capacitance of this detector into a numerical value and displays or records it, or records it together with the display is integrated. Moreover, using a movable fineness equivalent value detector,
For any one of the many reeling yarn groups that senses changes in fineness and automatically feeds and weaves cocoons,
By detecting and displaying the value equivalent to the fineness of the yarn being reeled, or recording it together with the display, it is possible to detect changes in the fineness of the reeled yarn group of the entire automatic reeling machine to which the detected reeled yarn belongs. An automatic yarn reeling method characterized by reeling yarn while monitoring and detecting the condition.