JPS6151045B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a monitoring device for a yarn plying and twisting machine.

Conventional yarn combining and twisting machines are known in which the yarns from N yarn feeding bobbins are aligned, combined, twisted by a ring, and wound into a winding tube, but this machine does not cut the yarn. Since a large number of pipe threads are removed (doffing) at a given time regardless of the presence or absence of the threads, it is normal for the lengths of the large number of pipe threads to vary by about 10%. Therefore, this large number of tube threads (e.g. 120
When weft yarn is produced by further twisting the yarn by twisting the spindle (weight) all at once, the weight of one spindle of the tube yarn is 2500
g, if the thread is 60 denier, the total thread length L is L=
2500 x 9000/60 = 375000 meters, the winding speed is 25 meters/minute, and it takes 15000 minutes to finish.
If the irregularity is assumed to be 10%, there will be a difference of about 25 hours, so it will take about 25 hours of unnecessary rotation of the spindle to finish all the pipe threads. There was an inconvenience that the electricity bill became expensive. In addition, when a large number of threads are used as warp threads, the lengths of the threads are not uniform, so it is necessary to dispose of the remaining threads, and there is an inconvenience that the winding pipes cannot be replaced all at once.

The present invention eliminates the above-mentioned inconvenience by eliminating uneven yarn lengths of the tube yarns, and also stops the yarn plying and twisting operation when there is no yarn running in even one of the N yarn supply bobbins, thereby preventing the production of defective products. This purpose is to align and combine the threads of N yarn feeding bobbins, and transfer the threads to a thread sending roller driven by a driving motor and a swinging motion for thread pressing that can freely approach and separate from the thread. In a yarn combining/twisting machine that winds yarn onto a winding tube while delivering and twisting yarn using a roller, N yarn travel detectors each detect the travel of the yarn of the N yarn feeding bobbins, and It has a signal generator that generates a number of pulse signals proportional to the rotation, and outputs the pulse signal generated by the signal generator when all of the N yarn travel detectors detect yarn travel. A good yarn delivery amount detection means, a good yarn delivery amount measurement means for counting the pulse signal outputted by the good yarn delivery amount detection means, and at least one of the N yarn running detectors detects the running of the yarn. When the yarn runs out, or when the good yarn delivery amount measuring means counts the number of pulse signals corresponding to the fullness of the winding tube, the rotation of the winding tube is stopped and the swinging roller for pressing the yarn is removed from the yarn feeding roller. It is characterized by comprising a stop means for stopping feeding of the thread by releasing the thread.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram of the mechanism of one embodiment, and FIG. 2 is an electrical circuit diagram thereof.

In Figure 1, 1 is the yarn feeding bobbin, which is N
The yarn 9 pulled out from these is combined via a tensor 2 that applies tension to the yarn, and a yarn sending roller 3 driven by a motor and a yarn pressing device that can freely approach and separate from the yarn sending roller 3 are driven by a motor. The yarn is sent out by a swinging roller 4, guided by a yarn guide 5, fitted into a yarn twisting ring 6, twisted by a rotatable traveler 7, and wound into a yarn winding tube 8.

Although the above is not particularly different from the conventional yarn combining and twisting machine, according to the present invention, N yarn running detectors each detecting the traveling of the yarn of the N yarn feeding bobbins, and rotation of the yarn sending roller. The quality yarn has a signal generator that generates a number of pulse signals proportional to , and outputs a pulse signal generated by a time signal generator in which all of the N yarn travel detectors detect yarn travel. A feeding amount detecting means, a good yarn feeding amount measuring means for counting pulse signals outputted by the good yarn feeding amount detecting means, and at least one of the N yarn running detectors no longer detect yarn running. or when the good yarn delivery amount measuring means counts a number of pulse signals corresponding to the fullness of the winding tube, the rotation of the winding tube is stopped and the swinging roller for pressing the yarn is separated from the yarn sending roller. and a stop means for stopping feeding of the yarn.

Therefore, to explain the configuration of the illustrated one in detail, the yarn running detector 10 is composed of a contact type detector such as a micro switch or a non-contact type detector using light beams or capacitance, and detects the amount of good yarn delivered. The means includes a signal generator consisting of a permanent magnet 13 eccentrically fixed to a yarn sending roller 3 driven by a belt by a driving electric motor 12 via a transmission 11, and a detection coil 14 fixed opposite to the permanent magnet 13. , as shown in the second figure, there is a first contact 16a ₁ connected in series with the output side of the detection coil 14, and the first contact 10 of the four thread travel detectors 10 connected in series.
a, 10a, 10a, 10a via power supply (+
V), and when all four yarn travel detectors 10 detect the yarn travel and each contact 10a is closed, the relay 16 is operated to close the relay 16. It is configured such that a number of pulse signals proportional to the amount of yarn fed out generated by the detection coil 14 are outputted via one contact 16a as the amount of fed out four good quality yarns.

The quality yarn delivery amount measuring means, the AC amplifier 1
It is connected to the quality yarn delivery amount detection means through 7 and counts the pulse signals output from the detection means, and is composed of, for example, fixed frequency dividers 15-1, 15-3 and variable frequency divider 15-2. It is composed of a counter 15.

This counter 15 is well-known and has a counting pulse input terminal, a preset terminal, a reset terminal, and when the number of counting pulses reaches the preset number (the number corresponding to a full winding tube), it issues a stop command signal and an alarm. A terminal that outputs a signal that can be used as a signal (not shown)
It has the following.

In the drawing, reference numeral 18 denotes a polarized relay, which is connected to a terminal of a counter 15 that outputs a signal when the number of counted pulses reaches a preset number, and when the winding tube 8 is full, its output is A contact 18a is provided which is energized by and opens at that time. 19 is a solenoid coil that presses the swinging roller 4 against the yarn delivery roller 3 against a spring 20, and 21 is a clutch that connects and separates the winding tube 8 and the power source.

The contact 18a of the polarized relay 18 is connected to the contacts 10a, 10 of four yarn travel detectors 10 connected in series.
a, 10a, 10a and relay 16 power supply (+
V), the second contact 16a2 of the relay 16 is connected to the input terminal of a NAND gate ₂₂ , the output terminal of which is connected to the relay 2
3 through solenoid coil 19 and clutch 2
1. The above circuit configured to be connected to the transistor 25 that controls the electromagnetic switch coil 24 is activated when at least one of the N thread running detectors 10 no longer detects running of the thread or when the winding Thread tube 8
When the winding tube is full, the rotation of the winding tube is stopped and the feeding of the yarn is stopped. Polarized relay 1 when open or full
When the contact 18a of 8 is opened, the electrode switch coil 24 is deenergized via the relay 16, NAND gate 22, transistor 25, and relay 23, and the solenoid coil 19 is deenergized and the swing roller 4 spring 20 is deenergized. The force causes the thread to separate from the thread delivery roller 3 and the delivery of the thread is stopped, and at the same time, the clutch 21 is deenergized and the winding tube 8 is stopped.

In FIG. 2, 26 is an alarm such as a lamp that is energized through the b contact when the polarized relay 18 is activated, and 27 is the b contact 16b when the relay 16 is deenergized.
An alarm such as a lamp is energized through the winding tube 8 when the winding tube 8 is full, and the N yarn travel detectors 10.
An alarm means is configured to generate an alarm when the running of at least one thread of the thread is no longer detected.

In the drawing, reference numeral 28 denotes an oscillating roller position detection microswitch that is activated when the oscillating roller 4 is pressed against the yarn delivery roller 3, and its contact 28a is connected in series with the contact 10a of the yarn travel detector 10.

29 is a start switch connected in parallel with the contacts 10a and 28a, and 30 is a reset switch.

Next, its operation will be explained.

When the start switch 29 is closed, the relay 16 is energized and its No. 216a ₂ is closed, so the transistor 25 is turned on via the NAND gate 22, and the solenoid coil is turned on via the relay 23 and the electromagnetic switch coil 24. 19. The clutch 21 is energized and the swinging roller 4 presses against the yarn sending roller 3 to start collecting the four good quality yarns which have been combined. At the same time, the winding tube 8 begins to rotate, and the twisting ring 6 operates at the same time. The thread is twisted by a traveler 7 which can be inserted into the thread and wound into a winding tube 8. At this time, the first contact 16a ₁ of the relay 16 is closed, so this contact 16a ₁
A number of electric pulses corresponding to the amount of fed-out four-paired good quality yarn are outputted through the AC amplifier 17, and these electric pulses are inputted to the counter 15 via the pre-AC amplifier 17, and the number of pulses is counted. It can be done. If, for example, one yarn 9 is cut before the winding tube 8 is full, the contact 10a of the yarn travel detector 10 opens, and the yarn travel detector 10 no longer detects yarn travel, the relay 16 is deenergized. The alarm 27 is activated and the contact 1 is
When the contact 16a ₁ is opened, the counting of the counter 15, that is, the measurement of the delivery amount of good quality yarn (the yarn in which the number of yarns in the yarn feeding bobbin are combined) is stopped, and when the contact 16a ₂ is opened, the winding tube 8 is stopped. At the same time, thread delivery is stopped.
When the yarn runs normally and a good quality yarn is sent out, the yarn combining and twisting operation is performed again, and the counter 15 is activated.
When the number of windings of the good quality yarn in the winding tube 8 reaches the set value, the counter 1 counts up to the preset value.
The output from 5 activates the polarized relay 18, which opens the contact 18a and deenergizes the relay 16.
At the same time, the counting is stopped, the winding tube 8 is stopped, and the swinging roller 4 is separated from the thread delivery roller 3. At the same time, the closing of the contact 18b activates the alarm 26 to notify that the pipe is full.

Even if the operator accidentally closes the start switch 29 in this state, since the contact 18a of the polarized relay 18 is open, the yarn will not be sent out, twisted, or counted.

When sending out, twisting and counting the yarn again, the reset switch 30 is closed, the polarized relay 18 is operated in reverse, the contact 18a is closed, and at the same time the counter 15 is turned off.
Reset.

As described above, according to the present invention, there are provided N yarn travel detectors each detecting the travel of the yarn of the N yarn feeding bobbins, and a signal generating a number of pulse signals proportional to the rotation of the yarn delivery roller. has a generator;
A good quality yarn delivery amount detection means for outputting a pulse signal generated by a time signal generator in which all of the N yarn travel detectors detect yarn travel, and a pulse outputted by the good quality yarn delivery amount detection means. When the good yarn delivery amount measuring stage for counting signals and at least one of the N yarn travel detectors no longer detect yarn travel, or the good yarn delivery amount measuring means detects when the winding tube is full. The yarn winding system is equipped with a stopping means that stops the rotation of the winding tube when a number of pulse signals corresponding to the number of pulse signals corresponding to the number of pulse signals for the yarn winding tube is counted, and also separates the yarn pressing rocking roller from the yarn delivery roller to stop the yarn feeding. When the yarn length of the tube yarn (good quality product) consisting of N twisted yarns wound around the tube 8 is no longer uneven, and the tube yarn is passed through the double twister,
The operation efficiency is high, reducing the number of work hours and electricity costs. Also, when using the pipe threads as warp threads, there is no need to dispose of the remaining threads, making it possible to replace the winding pipes all at once. However, when the thread breaks, it stops running, so it has the advantage of not producing defective products.

[Brief explanation of the drawing]

FIG. 1 is a diagram of a mechanical part of an example of implementation of the present invention,
FIG. 2 shows its electrical circuit diagram. 1... Yarn feeding bobbin, 3... Yarn sending roller, 4...
... Yarn pressure roller, 5... Yarn guide, 6... Twisting ring, 7... Traveler, 8... Yarn winding tube, 9...
Thread, 10... Thread traveling detector, 11... Transmission device,
12...Driving electric motor, 13...Permanent magnet, 14
...Detection coil, 5...Counter, 16...Relay, 17...Previous AC amplifier, 18...Polarized relay, 19...Solenoid coil, 20...Spring, 21...Clutch, 22... NAND gate, 23... Relay, 24... Electromagnetic switch coil, 25... Transistor, 26, 27... Alarm, 28... Rocking roller position detection micro switch, 29... Start switch, 30... Reset switch .

Claims (1)

[Claims] 1. The yarns of N yarn feeding bobbins are aligned and combined, and the yarns are sent out and twisted by a yarn sending roller driven by a driving electric motor and a swinging roller for pressing the yarn that can come into contact with and separate from the roller. A yarn combining/twisting machine that winds yarn into a yarn winding tube while winding the yarn in a winding tube includes N yarn travel detectors each detecting the travel of the yarn of the N yarn feeding bobbins, and a number of pulse signals proportional to the rotation of the yarn delivery roller. a good quality yarn delivery amount detection means, which has a signal generator that generates a signal, and outputs a pulse signal generated by the signal generator when all of the N yarn travel detectors detect yarn travel; When the good quality yarn delivery amount measuring means for counting the pulse signal outputted by the good quality yarn delivery amount detection means and at least one of the N yarn travel detectors no longer detect yarn travel, or the good quality yarn When the feeding amount measuring means counts the number of pulse signals corresponding to the fullness of the yarn winding tube, the rotation of the yarn winding tube is stopped, and the yarn crimping swinging roller is separated from the yarn feeding roller to stop feeding out the yarn. A monitoring device for a yarn plying and twisting machine, characterized in that it is equipped with a stopping means.