JP2854989B2 - Monitoring method and processing method of yarn breakage, and yarn winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a bobbin
The present invention relates to a yarn break monitoring method and a yarn break processing method for a winding device that winds a plurality of yarns.

[0002]

2. Description of the Related Art An example of a yarn winding device capable of carrying out the method of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a yarn winding device 10, and FIG. To R
1 is a winder, 2 is a bobbin, 3 is a thread break detector, 4 and 5 are guides, 6 and 7 are roller devices, 8 and 9 are guides, 20 is a thread, and 30 is a side view as viewed from the direction. Each of the yarn cutting devices is shown.

[0003] The yarn is spun from an upper spinning nozzle (not shown) and passes through roller devices 6 and 7 to guide 4.
Traverse (indicated by reference numeral 41) from the position
It is wound up.

[0004] The yarn break is monitored by a yarn break detector 3. The yarn breakage detecting section is provided with a light projecting section and a light receiving section, and emits light from the light projecting section to the light receiving section, and is configured so that the traversing yarn passes through the light. When the yarn is passing, the light is intermittently shielded by the traversing yarn,
The yarn break output signal is turned off, indicating that no yarn break has occurred. When the yarn breaks, the light always hits the light emitting part because the yarn does not pass. When the traverse stops again,
Depending on the position of the thread, either the state where the light is always shielded or the state where the light is always applied to the light receiving unit is obtained. When the thread breaks or the traverse stops, the light is not regularly and intermittently shielded, and at that time, the output signal of the thread break detector is turned on, indicating the occurrence of some abnormality.

FIG. 3 is a front view of the thread breaker 30 in a normal state, FIG. 4 is a side view of the apparatus during operation, and FIG. 5 is a front view of the apparatus during operation, and 31 is an aspirator (a yarn suction unit) 32. Is a bundle guide, 33 is a yarn cutter, and 34 is a guide plate. In a normal state, the yarn spun from the spinning nozzle passes through the front surface of the thread breaker as shown in FIG.

FIG. 6 shows the relationship between the focusing guide 32 and the guide plate 34. In a normal state, the yarn runs downward along the front edge of the guide plate 34. The focusing guide 32 is located right and left below the guide plate 34 and the aspirator 31 as shown by a two-dot chain line in FIG. Now from thread detector 3
When the signal of N is issued, the aspirator 31 starts to operate, and the focusing guide 32 retreats backward while rotating inward while holding the thread 20 as shown by the arrow R as shown by 32 'in FIG. , 20 'collectively pulls in front of the aspirator. This situation is shown in FIGS. 4 (shown in side view) and 5 (shown in front view). Then the yarn 20 'which is gathered by the yarn cutter 33
, The yarn is sucked by the aspirator. The winder is also stopped, and the winding operation is interrupted. Then, the focusing guide and the yarn cutter return to the original positions, and prepare for the next operation.

[0007] These devices are commonly used in this type of technology and will not be described in detail. There is no problem as long as the yarn is wound on all the bobbins mounted on one bobbin holder. However, in practice, the yarn is wound on half of the bobbins under various working conditions, for example, plying. In many cases, the winding operation is performed under conditions such as winding or winding the yarn around a small number of bobbins with a missing weight.

In the conventional apparatus, if all bobbins are monitored by the yarn breakage detector even if the position and number of bobbins to be wound are changed, the yarn is not wound by the twine or the missing weight. Regarding the bobbin, it is determined that the thread is broken even though the thread is not actually broken. Since this is inconvenient, the following has been conventionally performed.

That is, a bobbin selected to be wound (which is referred to as a winding condition) is determined by a switch operation (first switch operation) input to the control device and a winder. A thread operation is monitored by an output signal of a yarn break detector, and when a yarn break occurs, a switch operation for inputting to the control device that a yarn break processing for suctioning and cutting the upstream yarn should be performed (No. Two-switch operation). After the operation of the first and second switches, the control device determines that the yarn is broken based on the output signal of the yarn break detector only for the bobbin selected to be wound, and based on the determination, A thread breaking process is performed. As a result, the above-mentioned problem does not occur.

However, if the operation of the second switch is forgotten, even if a yarn break occurs, the process of sucking and cutting the upstream yarn is not performed, and the yarn is wound around the roller, and the yarn is swung by the rotation of the roller. There is a risk that the fly will fly and be wrapped in the package of the adjacent winder or produce defective products. Also, it takes a lot of time to recover. Also, it goes without saying that confusion occurs when the first switch operation is forgotten. As described above, the conventional method has a disadvantage that confusion occurs when the user forgets to operate the switch.

[0011]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional disadvantages, the present invention provides: "1. A winder capable of winding a plurality of yarns on a plurality of mounted bobbins; A winding device including a yarn break detector that monitors each of the yarns and detects the presence or absence of a yarn, and a control device that controls the winder and the yarn break detector. In the method of monitoring the breakage of the yarn when winding the yarn, the yarn detection of the bobbin is performed by detecting the presence or absence of the yarn for each bobbin by the output of the yarn breakage detector after the completion of the yarn hooking on the winder. A yarn breakage monitoring method, wherein the bobbin winding the yarn is stored by the control device, and only the stored bobbin is monitored for a yarn breakage based on an output of the yarn breakage detector.
1. A yarn winding device and In the yarn breakage processing method when a yarn breakage is detected by using the yarn breakage monitoring method according to claim 1, the control is performed when the yarn breakage is determined based on an output of a yarn breakage detector. A device for activating the thread cutting device, then stopping the winder, and erasing the memory in the control device, and repeating this process as necessary. Method. Are obtained.

[0012]

[Action] First, the yarn spun from the spinning nozzle is sucked by the aspirator 31.

2. The yarn spun from the spinning nozzle is suctioned by a suction gun, and the roller devices 6, 7 and the guide 4,
Hang the thread on 5, 8, 9, etc.

3. The winder is activated by operating the operation switch of the winder, and the thread is set. However, activation of the winder may be performed at an earlier stage.

4. When the winder starts, stop the aspirator. The stop of the aspirator may be performed after the end of 2, and may not be immediately after the winder is started.

5. Hang the thread on the thread guide of the winder while sucking the thread with the suction gun.

6. The operation of the operation switch of the winder causes the thread hook guide to move, and the thread is wound on the bobbin with the assistance of human power to start winding. It is done by a person until the threading is completed and the bobbin on which the thread is wound is confirmed.

[7] When the threading operation has been completed, a timer is set, and the monitoring of the yarn breakage is delayed until there is no loosening of the yarn immediately after the completion of the threading. This time is around 3 seconds.

8. Nashi seen as no longer loose by the time up of the timer, which is set in the above paragraph 7, start the monitoring of the cross-sectional thread for all of the bobbin.

9. When the timer expires, the bobbin on which the yarn is wound is detected by the output of the yarn break detector, and the information is stored by the control device.

10. The output signal of the subsequent thread detector,
The information is compared with the information of the bobbin on which the winding operation is being performed, which is stored in the item 9 above, and it is detected that the yarn is not wound on the bobbin that is to be wound. Regarded as a thread break.

11. If it is determined that the thread is broken, the signal is subjected to a thread breaking process. That is, the aspirator starts operating,
The yarn spun from the spinning nozzle is drawn by an aspirator, bundled in one place by a focusing guide, cut by a yarn cutter, and sucked into the aspirator.

12. The focusing guide and the yarn cutter return to their original positions after cutting, and prepare for the next operation.

13. Stop the winder.

14. The information stored in the above section 9 indicating which bobbin of the winder the yarn is wound on is deleted.

[0026]

FIG. 7 shows another embodiment 40 of the thread breaker different from that shown in FIGS. The yarn 20 is spun from the nozzle and descends in the pipe 41. Reference numeral 42 denotes a pressurized air cylinder, from which a shutter 44 having a cutting blade 43 is provided at the tip.

If a thread break occurs, the solenoid valve is actuated by the control device, and the pressurized air in the cylinder pushes the shutter 44 rightward in the drawing, and the cutting blade 43 cuts the right end as shown by 43 'and 44'. Abutting against the part 45, cutting the thread 20,
The thread coming from above is accumulated at the top of the as shown at 46. In this embodiment, there is no aspirator.

Next, FIG. 8 shows that the yarn breaker 30 of the embodiment shown in FIGS. 3 to 6 processes all the yarns 20,... This is another embodiment in which a yarn breaker 30 'is provided for each yarn 20.

In the drawing, reference numeral 4 denotes a guide, reference numerals 6 and 7 denote roller devices, and reference numeral 8 denotes a guide.

Further, in the method of detecting the yarn breakage, it is possible to monitor the yarn at a place where the yarn is not traversing, which is a photoelectric type. Of course, in this case, the shading is not intermittent.

[0031]

According to the present invention, there is provided a method as described above, in which the operation of monitoring and processing of thread breakage is prevented from being erroneously performed by a relatively simple operation, and the occurrence of defective products is completely prevented. did it.

That is, using the signal indicating the presence or absence of the yarn of the yarn break detector, the fact that only the bobbin for which the yarn hooking is completed is wound up is stored in the control device, and only the bobbin is used for the yarn breakage. Since the monitoring and the processing are performed, the operation of the conventional first and second switches is not required, and the operational error can be eliminated. Since the completion of the threading is confirmed by a human as described above, the work does not proceed without the thread being wound on the bobbin to be wound.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of a yarn winding device.

FIG. 2 is a side view of FIG. 1 as viewed from an R direction.

FIG. 3 is a front view of the yarn breakage processing device in a normal state.

FIG. 4 is a side view in operation.

FIG. 5 is a front view during operation.

FIG. 6 is a diagram showing a relationship between a focusing guide and a guide plate.

FIG. 7 is an explanatory view showing another embodiment of the thread breaker.

FIG. 8 is an explanatory view showing another embodiment of the thread breaker.

Claims (5)

(57) [Claims] 1. A winder capable of winding a plurality of yarns on a plurality of bobbins mounted thereon, a yarn breakage detector for monitoring each of the yarns and detecting the presence or absence of the yarn, and the winder. And a winding device including a control device for controlling the yarn break detector, a method of monitoring the breakage of the yarn when winding the yarn on a bobbin at a required number and a required position. After the completion of the yarn hooking, the bobbin winding the yarn is detected by the output of the yarn breakage detector and detects the presence or absence of a yarn for each bobbin by the control device. And monitoring the yarn breakage based on the output of the yarn breakage detector. 2. A yarn breakage processing method in which a yarn breakage is detected by using the yarn breakage monitoring method according to claim 1, wherein the yarn breakage is regarded as a yarn breakage by an output of a yarn breakage detector. To
The above-mentioned control device operates the thread cutting device, then stops the winder, and further erases the above-mentioned memory in the control device. This process is repeated as necessary. Thread breaking method. 3. A plurality of bobbins mounted on a plurality of bobbins.
Winder capable of winding a yarn, each of the yarns
Yarn detector that monitors the presence and absence of yarn
And a winding device including a control device for controlling the yarn breakage detector
When winding the yarn on the required number and bobbin at the required position
In the method of monitoring yarn breakage,
After the completion of the threading, the output of the thread
To detect the presence or absence of a yarn for each bobbin, and wind up the yarn.
The stored bobbin is stored by the control device, and the stored
For the bobbin only, thread breakage
A yarn winding device for monitoring a thread. 4. A yarn winding device, comprising: Immediately after threading is completed, a timer is set.
When the time is up, the output of the thread
Detects the presence or absence of yarn for each bobbin, and
Wherein the bins are stored by the control device.
The yarn winding device according to claim 3. (5) In the yarn winding device, The set time of the timer is about 3 seconds.
Claim 4. A yarn winding device.