JP3006822U - Operation monitoring device in clearer - Google Patents

Abstract

(57) [Abstract] [Purpose] When measuring and inspecting a thread with a clearer, even if the thread has substantially no thread unevenness, such as filament thread, the thread is positioned in the sensor slot and the thread moves and moves. Provide an operation monitoring device that can confirm that the [Structure] A static FW mechanism for confirming that a yarn is positioned in the sensor slot based on a yarn signal electrically formed from a change in weight of a yarn traveling in a sensor slot, and a traverse mechanism for traveling direction. A static traverse sensor mechanism for detecting the reciprocating movement of the yarn reciprocally moved in a direction intersecting with the static F
This is a configuration in which a detection mechanism for monitoring the operation state of the yarn is provided based on the AND condition of the detection signal of the W mechanism and the detection signal of the traverse sensor mechanism.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an operation monitoring device for enabling the measurement of a yarn having substantially no yarn unevenness such as filament yarn in a clearer for detecting yarn defects in a spinning process or the like.

[0002]

[Prior art]

 Conventionally, in a spinning process, for example, in a yarn being wound, nep, slab, sick place, thin place, and other yarn defects contained in the yarn are detected by a clearer, and the defective portion can be cut and removed. Has been done.

Such a clearer has a sensor slot that allows a moving yarn to pass therethrough, and a pair of electrodes arranged to face the slot causes a yarn signal based on the electric capacity detected from the weight change of the yarn. Is formed and the peak portion appearing in the waveform of the thread signal is compared with the allowable value to judge the thick unevenness and / or the thin unevenness.

As described above, the clearer needs to pass the traveling yarn through the sensor slot, and if the yarn travels in a state where the yarn is out of the sensor slot, the purpose cannot be achieved.

[0005] Furthermore, if a yarn breakage occurs during winding, and the drum continues to rotate even when the yarn is not supplied, the yarn on the surface of the winding package (cheese or corn) that comes into contact with the drum becomes rough, The drum must be stopped immediately, or if the drum cannot be stopped, measures must be taken to lift the package from the drum.

Therefore, conventionally, FW mechanisms called a static FW mechanism and a dynamic FW mechanism have been known as yarn traveling detection means of a clearer.

The static FW mechanism determines whether or not there is a yarn in the sensor slot of the clearer based on the presence or absence of the yarn signal. Therefore, in this case, the presence or absence of yarn breakage cannot be detected as long as the yarn is in the sensor slot.

The dynamic FW mechanism can detect that the yarn is located in the sensor slot and is traveling based on the waveform fluctuation of the yarn signal. That is, when the yarn is stopped, the yarn signal is constant and flat, but when the yarn runs, it becomes a signal having an amplitude proportional to the unevenness of the yarn.ー Determine that you are driving in a slot.

[0009]

[Problems to be solved by the device]

 The conventional FW mechanism cannot be applied to a yarn having substantially no yarn unevenness such as a filament yarn. That is, check whether the thread is not out of the sensor slot, and even if the thread is located in the sensor slot, whether it is not stopped due to thread breakage and is traveling while being wound normally. , Oversight of such operations is not possible.

First, in the case of the static FW mechanism, it is possible to determine whether or not there is a thread in the sensor slot of the clearer, but as described above, as long as the thread is in the sensor slot, the presence or absence of thread breakage cannot be detected.

Next, in the case of the dynamic FW mechanism, with respect to a yarn having substantially no yarn unevenness, such as a filament yarn, the yarn signal is always flat and it is not possible to detect whether or not the yarn is running. That is, in the case of filament yarn such as silk yarn, the yarn unevenness is very small compared to general spun yarn, and is practically equal to zero, so even if the sensitivity of the dynamic FW mechanism is raised and improved. , Practically difficult.

By the way, for example, in the case of a yarn having substantially no yarn unevenness such as a filament yarn, for example, a silk yarn, in a monofilament, there are partially lumpy defects, and in a multifilament, Since some filaments are broken and there are so-called crispy defects, it is necessary to measure these with a clearer and remove the defects, but as mentioned above, it passes through the clearer sensor slot. There is a problem that it is not possible to monitor the operation in a tight condition.

[0013]

[Means for Solving the Problems]

 The present invention provides an operation monitoring device in a clearer which solves the above-mentioned problems, and is configured as a means for electrically generating a yarn signal from the weight fluctuation of the yarn traveling and moving in the sensor slot, In a clearer equipped with a yarn defect detection mechanism that detects a yarn defect based on the waveform of a yarn signal, a traverse mechanism that reciprocates the traveling yarn in a direction intersecting the traveling movement direction, and a reciprocating movement of the yarn. A traverse sensor mechanism for detecting the movement, and a static FW mechanism for detecting that the yarn is located in the sensor slot based on the yarn signal are provided, and the detection signal of the traverse sensor mechanism and the detection of the static FW mechanism are provided. Detects that the yarn is located in the sensor slot and is traveling based on the signal Bae lies in comprising constitute a configuration detection mechanism.

[0014]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a state in which a filament yarn 1 such as a silk yarn having substantially no yarn unevenness is wound around a winder. That is, the yarn 1 is unwound from the bobbin 2 and wound on the package 3.

A sensor slot 5 of a clearer 4 is arranged in the traveling movement path of the yarn 1 between the bobbin 2 and the package 3. Therefore, the yarn 1 travels inside the sensor slot 5. Such a clearer 4 forms a thread signal based on the electric capacity detected from the weight variation of the thread by a pair of electrodes arranged opposite to the sensor slot 5, and allows the peak portion appearing in the waveform of the thread signal. By comparing with the value, the detection of a lump defect where the yarn 1 is a monofilament, and a so-called crease-like defect due to a partial breakage of the filament when the yarn 1 is a multifilament are detected. The mechanism 6 is provided, and the configuration at this point is almost the same as that of a conventionally known clearer.

The clearer 4 is also provided with a static FW mechanism 7 for detecting whether or not the yarn 1 is positioned in the sensor slot 5 based on the yarn signal. This static FW mechanism 7 is turned on based on the presence of a yarn signal when the yarn 1 is located in the sensor slot 5, and outputs a detection signal. On the other hand, if the thread 1 is out of the sensor slot 5, there is no thread signal, so the thread 1 is off. Such a configuration is almost the same as the conventionally known static FW mechanism provided in the clearer.

The winder is provided with a drum 8, and the drum 8 is provided with a guide groove 9 extending spirally. The guide groove 9 of the drum 8 constitutes a traverse mechanism 10 that guides the yarn 1 and reciprocates the yarn 1 to the full width of the package 3 by the rotation of the drum 8. As a result, the yarn 1 is evenly wound in the width direction of the package 3.

Therefore, the yarn 1 constantly repeats the reciprocating movement (traverse movement) as shown by the arrow T during winding on the package 3, and the reciprocating movement of the yarn 1 is observed at the location where this traverse movement is observed. A traverse sensor mechanism 11 for detecting movement is provided. The traverse sensor mechanism 11 is ON when detecting the reciprocating movement of the yarn 1, for example, and outputs a detection signal. On the other hand, it is OFF when the reciprocating movement of the yarn 1 is not detected.

FIG. 2 shows an embodiment of a sensor forming the traverse sensor mechanism 11.

FIG. 2A shows a photo interrupter type sensor 11 a, in which a light receiving element 13 a and a light emitting element 14 a are arranged in a slot 12 so as to face each other. As shown in FIG. 1, the sensor 11a is arranged so as to enter the slot 12 when the yarn 1 comes to a turning point when the yarn 1 reciprocates, and the yarn 1 moves to receive the light receiving element 13a. A pulse is output every time the light emitting element 14a is blocked.

FIG. 2B shows a photoreflector type sensor 11b, in which the light receiving element 13b and the light emitting element 14b are arranged substantially in the same direction. This sensor 11b is provided at an arbitrary position in the reciprocating path of the yarn 1 described above, and when the yarn 1 passes through the sensor 11b, a pulse is output every time the light receiving element 13b receives the reflected light of the yarn 1. To do.

The detection signal from the static FW mechanism 7 and the detection signal from the traverse sensor mechanism 11 described above are input to the operation detection mechanism 15 provided in the clearer 4, and the AND condition is taken there, whereby the yarn 1 Is located in the sensor slot 5 and is traveling.

That is, for example, when the yarn 1 is out of the sensor slot 5, the detection signal from the static FW mechanism 7 is not input to the operation detection mechanism 15. On the other hand, even when the yarn 1 is located in the sensor slot 5, when the yarn 3 is not wound around the package 3 due to yarn breakage or the like and is not traveling and moving in the sensor slot 5, the operation detection mechanism 15 does not operate. , The detection signal from the traverse sensor mechanism 11 is not input. Therefore, in any of these cases, the operation detection mechanism 15 determines that the operation state is “abnormal”.

Incidentally, although not shown, it is preferable to provide a device for automatically stopping the winder when it is determined to be “abnormal” although not shown.

In the embodiment shown in FIG. 1, the yarn defect detection mechanism 6, the static FW mechanism 7, and the operation detection mechanism 15 are shown separately for each block for convenience of description, but these are not shown. It is to be understood that the figure is only intended to clarify the function and not to limit the structure, because it is configured by the circuit in the device of the clearer 4.

[0027]

[Effect of device]

 According to the present invention, since the clearer 4 is provided with the static FW mechanism 7, the thread 1 is a sensor slot even if the thread 1 is a filament thread 1 having substantially no thread unevenness such as silk thread. If it deviates from 5, it can be detected immediately. On the other hand, since the traverse sensor mechanism 11 for detecting the reciprocating movement of the yarn 1 by the traverse mechanism 10 is provided, even if the yarn 1 is located in the sensor slot 5, if the traveling movement is stopped due to a yarn breakage or the like, It can be detected immediately.

Then, based on the detection signal of the traverse sensor mechanism 11 and the detection signal of the static FW mechanism 7, for example, based on an AND condition, the operation detection mechanism 15 of the clearer 4 detects that “the yarn 1 is a sensor It can be immediately determined that "the thread 1 is located in the slot 5" and "the yarn 1 is traveling and moving". Therefore, it can be suitably judged whether the operation state of the clearer 4 is normal or abnormal with respect to the filamentous yarn 1 which does not substantially have unevenness of yarn such as silk yarn which has been conventionally impossible to judge. effective.

[Submission date] July 19, 1994

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

Such a clearer has, for example, a sensor slot that allows a moving yarn to pass therethrough, and a pair of electrodes arranged to face the slot causes an electric capacitance detected based on a variation in the weight of the yarn. The yarn signal is formed by a warp, and the peak portion appearing in the waveform of the yarn signal is compared with the allowable value to determine thick unevenness and / or thin unevenness.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

[0013]

[Means for Solving the Problems]

The present invention provides an operation monitoring device in a clearer that solves the above-mentioned problems, and is configured as a means for electrically generating a yarn signal from unevenness of a yarn traveling and moving in a sensor slot, In a clearer equipped with a yarn defect detection mechanism that detects a yarn defect based on the waveform of a signal, a traverse mechanism that reciprocates the traveling yarn in a direction intersecting the traveling movement direction, and a reciprocating movement of the yarn. And a static FW mechanism for detecting that the yarn is located in the sensor slot based on the yarn signal. The detection signal of the traverse sensor mechanism and the static FW mechanism are provided. Based on the detection signal of the operation, the operation that detects that the yarn is located in the sensor slot and is traveling is detected. Lies in comprising constitute Shon detection mechanism.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

A sensor slot 5 of a clearer 4 is arranged in the traveling movement path of the yarn 1 between the bobbin 2 and the package 3. Therefore, the yarn 1 travels inside the sensor slot 5. Such a clearer 4 forms a thread signal based on the electric capacity detected from the weight change of the thread by a pair of electrodes arranged to face the sensor slot 5, and the peak portion appearing in the waveform of the thread signal is detected, for example. By comparing with the permissible value, thread defect detection that detects lumpy defect points when thread 1 is a monofilament and so-called crispy defect points due to partial fracture of the filament when thread 1 is a multifilament The mechanism 6 is provided, and the configuration in this respect is almost the same as that of a conventionally known clearer.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention.

2A and 2B show an embodiment of a traverse sensor constituting the present invention, FIG. 2A is a sectional view of a photointerrupter type sensor, and FIG. 2B is a sectional view of a photoreflector type sensor.

[Explanation of symbols]

 1 Thread 4 Clearer 5 Sensor Slot 6 Thread Defect Detection Mechanism 7 Static FW Mechanism 10 Traverse Mechanism 11 Traverse Sensor Mechanism 11a Photointerrupter Sensor 11b Photoreflector Sensor 15 Operation Detection Mechanism

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[Procedure amendment]

[Submission date] July 19, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

Claims (1)

[Scope of utility model registration request] 1. A clearer comprising a yarn defect detecting mechanism for electrically forming a yarn signal from a weight change of a yarn traveling in a sensor slot and detecting a yarn defect based on a waveform of the yarn signal, A traverse mechanism that reciprocates the traveling yarn in a direction intersecting the traveling movement direction, a traverse sensor mechanism that detects the reciprocating movement of the yarn, and the yarn is located in the sensor slot based on the yarn signal. A static FW mechanism for detecting that the yarn is located, and detects that the yarn is located in the sensor slot and is traveling based on the detection signals of the traverse sensor mechanism and the static FW mechanism. An operation monitoring device in a clearer characterized by comprising an operation detection mechanism.