JPH01104573A - Method for measuring length of yarn and detecting constant length wind-up and end breaking in winder process of spinning - Google Patents

Abstract

PURPOSE:To facilitate the measurement of the length of yarn by integrating the number of times at which the yarn is reciprocated on a drum surface with the length of one reciprocation on the drum by the yarn at the time of winding up the yarn which is wound on one pipe to the other pipe via the drum having guide grooves on the whole width of its peripheral face. CONSTITUTION:Yarn A wound on a pipe shaft 11 is wound up on a pipe shaft 12 via a photo-sensor 1 and the grooves 14 of a drum 13 having the guide grooves 14 on the whole width of its peripheral face. From the number of times at which the yarn A passed through the photo-sensor 1, the number of times at which the yarn A is reciprocated through the guide groove 14 of the drum 13 is inputted into a counter 2, and this number of reciprocations is integrated with the previously obtained length of the one reciprocation of the yarn A, to obtain the length of the yarn A and indicate 3 it. Also, if the delay of input into the counter 2 is detected by e delay circuit 5, it is judged end breaking and a stop signal 6 is outputted. When a defined length is indicated on an indicating part 3, the stop signal 6 is outputted. Thereby, measurement of length and constant length wind-up can be carried out only with one photo- sensor enabling emergency stop at the time of cutting, and simplifying a structure.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a method for manufacturing cheese or other products by passing a thread wound around one tube shaft through a drum having a guide groove formed over the entire width of its circumferential surface. relates to a method for measuring the length of yarn, winding it to a fixed length, and detecting yarn breakage in the winding process of spinning, in which the yarn is wound around the other tube shaft called a cone.

(Prior art) Conventionally, when measuring the length of yarn in the winder process of this type of spinning, as shown in Figure 2, the drum is
3. The rotation speed of the supported rotating shaft 7 or the pulley 8 attached to the rotating shaft 7 is detected by a rotation detecting section 9 such as a proximity switch, micro switch, photoelectric switch, etc., and this detection signal is used for calculations set in advance. It is calculated and measured using a formula.

In addition, in order to determine whether the thread wound from one tube shaft 11 to the other tube shaft 12 has reached the desired length, it is necessary to check that the diameter of the outer circumferential surface of the corn or cheese is a predetermined size. At this stage, a microswitch or the like is activated and a fixed length winding means is used which is configured to output a stop signal.

In addition, if a thread breakage occurs while winding a desired length of thread from one tube shaft 11 to the other tube shaft 12, stop the device, tie the thread, and then start the winding operation again. However, in order to detect this thread breakage, a thread breakage detection section 10 such as a photoelectric switch is disposed at a position where the thread passes.

(Problems to be Solved by the Invention) A technical problem to be solved by the present invention is that when measuring the length of yarn using the above-mentioned conventional technique, especially when yarn breakage occurs, the length of the wound yarn cannot be measured. There is a point where a considerable error occurs.

That is, in the prior art means described above, if a thread breakage occurs while winding a desired length of thread from one tube shaft 11 to the other tube shaft 12, the thread breakage detection section 1o, such as a photoelectric switch, detects this. The drum 13 and the rotating shaft 7 that supports it output a stop signal and then stop the device.
Even if the stop signal is output and the drive unit stops, the drum 1 will continue to rotate due to its inertia for a while.
The rotation speed of the rotating shaft 7 supporting the rotary shaft 3 or the pulley 8 attached to the rotating shaft 7 can be controlled by a proximity switch, a micro switch,
In the conventional method, which detects with a rotation detecting section 9 such as a photoelectric switch and calculates and measures this detection signal using a calculation formula set on the vehicle surface, the calculated length is smaller than the winding length at the time when the thread actually breaks. This means that you have wound up a lot.

Therefore, tie the broken thread and rewind it,
Calculatedly, when winding of the desired length is completed, the length of the actually wound yarn will be short, and if a woven fabric is knitted using this corn or cheese, the desired area of the woven fabric will be The thread runs out before it can be used, resulting in a defective product.

Also, drums? 3. :, Support 1. Proximity switches, microswitches, photoelectric switches, etc. are installed at two locations, one for each, in order to detect the rotation speed of the pulley 8, etc. attached to the rotary shaft 7 or the rotating shaft 1, and to detect thread breakage. It is necessary to provide a detection means, and also a means for determining whether the thread wound from one tube shaft 11 to the other tube shaft 12 has reached the desired length. As a whole, there are a large number of component parts, and as a result, not only the cost of the entire device becomes high, but also the maintenance management becomes troublesome.

(Means for Solving the Problems) The present invention deals with such problems, and
In the winding process of spinning, the number of position changes of the yarn A guided by the guide groove 14 on the circumferential surface of the drum 13 and reciprocating on the circumferential surface of the drum 13 is detected by a detection means such as the optical sensor 1,
By integrating the number of times of this detection signal and the length of the thread A that makes one reciprocation around the drum 13, the length of the thread A wound around the other tube shaft 12 can be measured, and the sum of the detection signals can be calculated. When a preset number of times is reached, a stop signal is output, and among the detection signals, the time between the previous detection signal and the detection signal immediately after that is the time required for the thread A to make one round trip around the drum 13. If the thread exceeds this limit, it is determined that the thread has broken, and a signal to stop the device is output.

(Example) An example of the present invention will be described with reference to the accompanying drawings.
It is an optical sensor consisting of a phototube and a light receiving element, and when a thread wound around one tube shaft 11 is wound onto the other tube shaft 12 via a drum 13, an abbreviation formed on the outer peripheral surface of the drum 13 is used. It is arranged to output a detection signal when the thread A passing through the spiral guide groove 14 is located at the most side end of the reciprocating motion.

2 is a counter that integrates the detection signal of the optical sensor 1, and a count display section 3 is connected thereto. Reference numeral 4 denotes a setting digital switch used to set the desired length of the yarn to be wound around the other tube shaft 12, and the setting digital switch 4 includes a display section. 5 is a delay circuit, and the time from the detection signal outputted by the optical sensor 1 to the detection signal immediately after that is determined by the delay circuit when the thread A
If the time for reciprocating is exceeded, it is determined that the yarn has broken, and this signal is transmitted to the stop signal output section 6.

The stop signal output section 6 outputs a stop signal upon receiving the signal from the delay circuit 5, and stops the count display section 3 and the apparatus.

When the desired yarn length is set using the setting digital switch 4 and the device is driven, the yarn wound around one tube shaft 11 is guided into the guide groove 14 formed on the outer peripheral surface of the drum 13. At the same time, it is wound up on the other tube shaft 12.

At this time, M key? As this work progresses, the device stops when the desired yarn length is reached.

In addition, if the thread breaks midway, the optical sensor 1 will no longer output a detection signal, so the time between the previous detection signal and the detection signal immediately after that is the time it takes for the thread to make one round trip around the drum. At the stage where the thread has exceeded the limit, the delay circuit 5 determines that the yarn has broken, and transmits this signal to the stop signal output section 6.

Then, the stop signal output section 6 receives the signal from the delay circuit 5 and outputs a stop signal, thereby stopping the count display section 3 and stopping the entire apparatus.

After that, tie the broken thread and wind it again.
The device stops when the desired length of winding is completed.

In this embodiment, a case has been described in which the optical sensor 1 is used to detect the positional fluctuation of the yarn A reciprocating on the drum 13.
Even if other detection means such as a limit switch or a microswitch are used, the gist of the present invention will not change in any way.

(Effects of the Invention) The present invention provides a spinning method in which a yarn wound around one tube shaft 11 is wound onto the other tube shaft 12 via a drum 13 in which a guide groove 14 is formed over the entire width of the circumferential surface. In the winding process, the drum 1 is guided by the guide groove 14 on the circumferential surface of the drum 13.
The number of position changes of the thread A reciprocating on three circumferential surfaces is detected by a detection means such as the optical sensor 1, and the sum of the number of times of this detection signal is
Measuring the length of the yarn wound around the other tube shaft 12 by integrating the length of the yarn A that makes one reciprocation around the drum 13;
and outputting a stop signal when the sum of the detection signals reaches a preset number of times, and among the detection signals,
The time between the previous detection signal and the detection signal immediately after that is yarn A.
If the time for one round trip around the drum 13 is exceeded, it is determined that the thread has broken, and a stop signal is output, so that the count display section 3 immediately stops when thread breakage occurs. Unlike conventional means, calculation errors do not occur.

In addition, since the length measurement, fixed length winding, and yarn breakage detection means can be processed by only the detection means such as the optical sensor 1, the number of components of the entire device is reduced, and manufacturing costs can be kept low. This is an extremely excellent invention that exhibits various effects, such as keeping maintenance costs low.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, and FIG. 2 is a schematic diagram showing a conventional example. Code Table 1 Optical sensor 2 Counter 3 Count display section 4 Digital switch 5 Delay circuit 6 Stop signal output section 7 Rotation axis
8 Pulley 9 Rotation detection section 10 Yarn breakage detection section 11, 12 Tube Shaft 13 Drum 14 Guide groove A Yarn Fig. 1

Claims (3)

[Claims] (1) In the spinning winder process in which the yarn A wound around one tube shaft 11 is wound around the other tube shaft 12 via the drum 13, which has a guide groove 14 formed over the entire width of its peripheral surface. The drum 13 is guided by the guide groove 14 on the circumferential surface of the drum 13.
The optical sensor 1 detects the number of position changes of the thread A reciprocating on the circumferential surface.
The length of the thread A wound around the other tube shaft 12 is measured by integrating the sum of the number of detection signals and the length of the thread A that makes one round trip around the drum 13. A method for measuring the length of yarn in the winding process of spinning, which is characterized by: (2) In the spinning winder process in which the yarn A wound around one tube shaft 11 is wound onto the other tube shaft 12 via the drum 13 in which the guide groove 14 is formed over the entire width of the circumferential surface. The drum 13 is guided by the guide groove 14 on the circumferential surface of the drum 13.
The optical sensor 1 detects the number of position changes of the thread A reciprocating on the circumferential surface.
The length of the thread A wound around the other tube shaft 12 is measured by detecting the number of times of this detection signal and integrating the length of the thread A that makes one round trip around the drum 13. A method for winding a yarn to a fixed length in a winder process of spinning, characterized in that a stop signal is output when the sum of detection signals reaches a preset number of times. (3) In the spinning winder process in which the yarn A wound around one tube shaft 11 is wound around the other tube shaft 12 via the drum 13, which has a guide groove 14 formed over the entire width of its peripheral surface. The drum 13 is guided by the guide groove 14 on the circumferential surface of the drum 13.
The optical sensor 1 detects the number of position changes of the thread A reciprocating on the circumferential surface.
The time between the previous detection signal and the immediately following detection signal among the detection signals is determined by the detection means such as
3. A yarn breakage detection method in a winder process of spinning, characterized in that when the time for one round trip is exceeded, the yarn is determined to be broken and a stop signal is output.