JPH09278284A - Abnormality warning device for thread line automatically peeling-off device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To warn the occurrence of abnormality at an early time with an alarm by providing a abnormality recording means for recording peeling-off mistakes and an abnormality determining means for outputting a warning signal when the number of times of making recording mistakes reaches a preset deter mination reference value. SOLUTION: A signal indicating the success of peeling off sent in for each operation is recorded time sequentially for each peeking-off operation in a computer as one-dimensional arrangement information. Then, the total number of operation mistakes in this one-dimensional arrangement is compared with a preset value, and if the total number of operation mistakes is a set value abnormality, an abnormality signal is transferred to a host computer. Also, operation mistake flags are only counted, a processing signal is transmitted to a counter cleared by operation success flags, and when an integrated value reaches a preset value, an abnormality signal is transferred to the host computer. Such an abnormality signal is processed by the host computer, an alarm lamp is turned on and thereby an operator is warned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in an automatic yarn stripping device for automatically stripping the outermost yarns from a yarn package. Regarding the alarm device.

[0002]

2. Description of the Related Art In recent years, a method of winding continuously running yarns using an automatic winder has become popular in the process of producing synthetic fiber yarns. Such an automatic winder is used for forming yarn packages.
The bobbin holder of the book is provided, and the turret type winding method of automatically switching between the empty bobbin and the bobbin on which the yarn package is formed is adopted.

However, in the outermost layer of the yarn package wound by such a winding machine, when the bobbin is switched, the yarn of which the quality is changed due to the fluctuation of the winding tension is taken up. For this reason, it is necessary to peel off the outermost layer yarn of which quality has changed.

In recent years, a stripping device for automatically winding the outermost layer yarn whose quality of the yarn package is not guaranteed on the pin roller as described above has been put into practical use (Japanese Patent Laid-Open No. 61-140473). ).

In the normal operation of such an automatic stripping machine as information to the outside, the situation of the yarn during stripping and after stripping is checked by a contact type or non-contact type detector. It informs the upper device and the operator of the success or failure of the stripping process. Also, as an alarm, an abnormal signal from a device equipped with an alarm function such as a trip of a servo motor is once received by a sequencer controlling the relevant machine base, and then the sequencer outputs an abnormality indication, and the corresponding machine is also displayed. The operation of the stand is stopped.

[0006]

However, there is no alarm function such that the hole of the suction tube for drawing the outermost layer of the yarn package to the pin roller is clogged with waste thread or the pin of the pin roller is broken. When trouble occurs due to the uncertain factor in the device, the peeling process fails one after another because the device is in an abnormal state, but it is quite difficult to provide detection means for detecting the uncertain factor such as waste thread. Therefore, there was no alarming means, and the operator was not aware of any trouble, and the line utilization rate was greatly reduced. Moreover, since it was difficult to detect one trouble at an early stage, it sometimes caused another trouble.

As a device that counts the processing results of such an automatic machine and outputs an abnormal alarm, a winding unit having a large number of weights is arranged in parallel to form one machine stand, in which the thread splicing state is set. Disclosed is an abnormality alarm device for an automatic winder (Japanese Patent Laid-Open No. 2-81878) having means for outputting an alarm signal to turn on a warning lamp when the number of dead weights reaches an arbitrarily set predetermined weight number. Has been done. However, the abnormality alarm device only outputs the alarm by counting the number of units that have missed processing among the units that are configured, and when the same unit continuously repeats processing errors, or when processing errors occur. It does not output an alarm when it occurs frequently in a certain period.

An object of the present invention is to frequently monitor the occurrence of troubles in the above-mentioned conventional stripping apparatus without a warning function in the automated manufacturing line before the line operation rate is greatly reduced. It is about early detection without resorting to the above.

[0009]

An abnormality alarm device for an automatic yarn stripping device according to the present invention is provided when an outermost yarn is automatically stripped from a yarn package by using the automatic yarn stripping device. If an abnormality occurs in the stripping process, the abnormality alarm device for the automatic yarn stripping device that outputs an alarm signal for the occurrence of an abnormality detects the stripping error and the abnormality detection means for detecting the occurrence of the stripping error. An abnormality recording unit that records the occurrence of a mistake when detected, and an abnormality determination unit that outputs an alarm signal when the number of occurrences of the error recorded in the abnormality recording unit reaches a preset determination reference value It is characterized by that.

At this time, the abnormality recording means records the number of occurrences of the stripping error as an integrated value. When the error occurrence is detected, the integrated value of the error occurrence is increased and conversely the error occurrence occurs. When the stripping process is performed without any error, the recorded cumulative value of error occurrences is returned to the initial value so that the mistakes occur continuously and the cumulative value of the number of error occurrences becomes the preset judgment reference value. It is more preferable that the abnormality determining means outputs an alarm signal when it reaches.

Alternatively, the abnormality recording means records the detection result of the presence or absence of an error in time series for each stripping process, and the recorded information is recorded in a one-dimensional array format. The number of digits m of the one-dimensional array is set in advance. Regarding the j-th processing result Kj, if j ≦ m, the processing result is recorded at the j-th digit in the one-dimensional array.
When j = m + 1, the first value in the one-dimensional array is deleted,
Further, the information recorded in the one-dimensional array is shifted by one digit to the leading value side, the latest processing result Kj is recorded in the m-th digit of the blank one-dimensional array, and further processing is performed. Is the same procedure and the latest processing result Kj is m in the one-dimensional array.
The process of recording at the digit is repeated, and when the abnormality determining means has reached a preset determination reference number in the one-dimensional array in which the processing result is recorded, the number of occurrences of errors is recorded. It is more preferable to output an alarm signal.

Further, it is more preferable that the warning light is turned on when the warning means outputs the warning signal.

According to the present invention, it is possible to use a conventional one as the abnormality detecting means itself for detecting the occurrence of a stripping error because it is determined whether or not the apparatus is in an abnormal state based on the history of processing results. That is, it is preferable that the abnormality detecting means itself does not need to be newly provided with a special object.

Further, the set value of the counter for checking whether or not processing mistakes continuously occur can be set arbitrarily.
Furthermore, since the size of the array and the set value for checking the occurrence frequency of processing errors at a fixed number of times of processing can be arbitrarily set, there is also an advantage that the monitoring level can be freely set according to the operating condition.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a stripping device equipped with an abnormality alarm device according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a peeling device main body, a ball screw 4 having a motor 3 as a driving means is horizontally provided on a machine frame 2, and the peeling device main body 1 is attached via a bearing 5 and a plate 6. . A yarn suction device 7 is rotatably supported on the plate 6 via a bearing 8. Reference numeral 9 is an auxiliary suction device that is positioned by the bracket 10 so that the axis of the yarn suction device 7 is horizontal.

A pin roller 11 for winding the outermost layer yarn of the yarn package P is arranged at a position slightly laterally between the yarn suction device 7 and the auxiliary suction device 9. A yarn detector 18 for stripping monitoring is installed in a yarn traveling path portion between the pin roller 11 and the yarn suction device 7.

Reference numeral 12 is a computer for controlling the stripping apparatus 1, to which a counter 13 for integrating the processing results is connected. The computer 12 is connected to a host computer 14 that processes a plurality of signals collectively, and turns on a warning lamp 15 when an abnormality occurs in any of the plurality of devices.

In the apparatus having such a structure, when the yarn package P loaded on the peg of the tray 16 is transferred onto the conveyor 17 and reaches the front position of the stripping apparatus main body 1, it stops.

Next, the motor 3 is driven to move the stripping device main body 1 forward by the ball screw 4, and the yarn suction device 7 sucks and pulls out the yarn end of the outermost layer of the yarn package P.
After that, the stripping device main body 1 retracts, and the yarn end reaches the auxiliary suction device 9 in a straight line. Next, the pin roller 11 is advanced by a fluid pressure cylinder (not shown) to a position where it crosses the yarn, and the yarn passes through between the pins. After that, the pin roller 11 is rotated by a driving motor (not shown). The rotation amount of the pin roller 11 is controlled by the built-in or external timer of the computer 12 and the rotation amount measurement counter, and the peeling amount of the outermost layer yarn of the yarn package P is quantitatively peeled off, and the yarn for peeling monitoring is peeled off. The strip detector 18 detects the success or failure of the stripping process, and transfers the result to the computer 12.

The success / failure signal of the stripping process sent for each process is stored in the process result storage / holding unit in the computer 12.
It will be stocked as information in the dimensional array format. That is, the detection result of whether or not an error has occurred is recorded in time series for each stripping process. At this time, the recorded information is recorded in a one-dimensional array format. The number of digits m of this one-dimensional array is preset, and j is the result j of the j-th processing.
When ≦ m, the processing result is recorded at the j-th digit in the one-dimensional array. Then, when j = m + 1, the head value in the one-dimensional array is erased, and the information recorded in the one-dimensional array is further shifted by one digit to the head value side, so that the blank one-dimensional array The latest processing result Kj is recorded at the m-th digit. When the processing is further continued, the processing of recording the latest processing result Kj at the m-th digit in the one-dimensional array is sequentially repeated in the same procedure. As a result, the latest m pieces of information are recorded in the one-dimensional array.

The total number of processing errors in such a one-dimensional array is compared with a preset setting value n for each processing. If the total number of processing errors is equal to or larger than the setting value p, an abnormal signal is transferred to the host computer 14. To do.

Further, the processing success / failure signal is transmitted to the counter 13 which counts only the stripping processing error flag and is cleared by the processing success flag, and when the integrated value of the counter reaches the preset set value q, the abnormal signal is set to the higher order. Transfer to computer 14.

As described above, when processing errors occur stochastically or continuously, the abnormal signal output from the computer 12 is processed by the host computer 14 and the warning light 15 is turned on to notify the operator. After the maintenance of the device in which the abnormality has occurred, the abnormality signal is cleared by a restart button (not shown).

[0024]

According to the present invention, even if the automatic processor is composed of a device that does not have an alarm function or is difficult to add an alarm function, an abnormality occurs without frequent patrols by the operator. Since it is possible to give an early warning of the fact that the operation is being carried out, the line operating rate will not be significantly reduced.

Further, there is a remarkable effect that it is possible to prevent the normal device or the adjacent device from being abnormally caused by continuing the processing even though the abnormality has occurred.

[Brief description of drawings]

FIG. 1 Stripping device equipped with an abnormality alarm device

[Explanation of symbols]

 1 Peeling device main body 7 Yarn suction device 9 Auxiliary suction device 11 Pin roller 12 Computer 15 Warning light 16 Tray 17 Conveyor 18 Yarn detector

Claims (4)

[Claims] 1. When an automatic yarn stripping device is used to automatically strip the outermost yarn from the yarn package and an abnormality occurs in the stripping process, an alarm signal indicating the occurrence of an abnormality is generated. In the abnormality alarm device for the automatic yarn stripping device that outputs, the abnormality detecting means for detecting the occurrence of the stripping error, the abnormality recording means for recording the error occurrence when the stripping error is detected, and the abnormality recording means An abnormality alarm device for an automatic yarn stripping device, comprising: abnormality determination means for outputting an alarm signal when the recorded number of mistakes reaches a preset determination reference value. 2. The abnormality recording means records the number of times of occurrence of a stripping error as an integrated value, and when the error occurrence is detected, the integrated value of the error occurrence is increased and, conversely, no error occurs. When the peeling process is performed, the accumulated accumulated error occurrence value is returned to the initial value, so that consecutive mistakes occur and the accumulated error frequency reaches the preset judgment reference value. Then, the abnormality determination means outputs an alarm signal, and the abnormality alarm device for the automatic yarn stripping device according to claim 1. 3. The abnormality recording means records the detection result of the presence or absence of a mistake in time series for each stripping process, and the recorded information is recorded in a one-dimensional array format. The number of digits m of the one-dimensional array is preset,
Regarding the j-th processing result Kj, if j ≦ m, the processing result is recorded at the j-th digit in the one-dimensional array, and j = m + 1.
In the case of, the first value in the one-dimensional array is erased, the information recorded in the one-dimensional array is further shifted by one digit to the first value side, and the latest m-th column is left in the blank one-dimensional array. The processing result Kj is recorded, and when the processing is continued, the processing of sequentially recording the latest processing result Kj at the m-th digit in the one-dimensional array is repeated. The yarn according to claim 1, wherein an alarm signal is output when the total number of recorded errors in the one-dimensional array in which the results are recorded reaches a preset determination reference number. Abnormality alarm device for automatic stripping device. 4. The warning light is turned on when the warning means outputs an alarm signal.
An abnormality alarm device for an automatic yarn stripping device according to any one of 3 above.