JPH0281878A - Abnormality alarm device in automatic winder - Google Patents

Abstract

PURPOSE:To provide prompt measures against abnormality in a piecing control device by making an alarm indication when a winding unit which indicates yarn piecing failure occurs in one winder by more than a given number. CONSTITUTION:The signal from the setter 25 where the repeated number of piecing operation is preset is inputted into a piecing control device 24 of each winding unit 4. The control device 24 counts the trigger signals from the microswitch which turns on once during one cycle of yarn connecting operation and detects a piecing failure and when it has reached the frequency specified by the setter 25, a button differential signal is outputted to turn on a rotary solenoid SO. As a result, a lever 22 turns clockwise and pushes a yellow button shaft 18 to the left on a figure to make a yellow button 3 come out and turn off the microswitch MS1, stopping piecing operation and winding operations. It is thus possible to take prompt measures against an abnormality.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a yarn splicing control device in an automatic winder.

[Prior Art] In an automatic winder in which a single machine is constructed by installing multiple winding units in parallel, each winding unit is forced to shut down when a defective part such as a slab is detected in the running yarn. Yarn defects are removed by cutting the yarn and splicing the upper yarn on the package side and the lower yarn on the yarn supply bobbin side. Further, even in the case of tension breakage other than the slab, or when there is no yarn on the yarn supply bobbin, the same yarn splicing operation as described above is performed by detecting that the yarn is not running.

If the yarn splicing is successful with the above yarn splicing operation, normal winding will start again. If the yarn splicing is not successful even after the set number of yarn splicing operations, it will be determined that the unit is unable to splice the yarn, and the unit will press the yellow button. By protruding it, it indicates that yarn splicing is not possible, stops winding, and waits for the operator to take action.

This is because there is a high probability that the yarn splicing will not be successful even if the yarn splicing is attempted any further, and the operator must go around to the unit where the yellow button is protruding and make repairs.

[Problems to be Solved by the Invention] However, since a large number of each winding unit are installed in parallel, the operator has to constantly go around to check whether the yellow button, which is the means for indicating that thread splicing is not possible, is in the protruding state. If it cannot be identified and the patrol is neglected, the operating rate of the winder unit that has stopped winding will decrease. In addition, if there are many indications that thread splicing is not possible,
There is a possibility that a common cause of the abnormality exists, and prompt action by the operator is required.

The present invention aims to solve the above problem.

[Means for Solving the Problems] The present invention provides a system in which a large number of winding units are arranged in parallel.
In an automatic winder, the machine is configured such that when each winding unit repeats a set number of thread splicing errors, the winding unit stops and a thread splicing impossible display is displayed. The present invention includes a detection means for outputting an alarm signal when a predetermined number or more of winding units occur in one winder, and an alarm display means.

[Function] When more than a predetermined number of winding units in one winder become in a state where yarn splicing is not possible due to protrusion of yellow buttons, etc., the detection means outputs an alarm signal and alarm display means such as a warning light is activated. .

This allows the operator to confirm that the cause of the abnormality is at a location common to the winder machines, and to promptly eliminate the abnormality. Therefore, even if the operator does not carry out similar patrol monitoring, the operating rate will not be significantly reduced.

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

In FIG. 1, 1 indicates a plurality of winding units 2.
Each winding unit 2 is equipped with a yellow button 3 that projects when a yarn splicing error is repeated a predetermined number of times to indicate that yarn splicing is not possible. Reference numeral 4 denotes a fixed length device capable of grasping and storing the winding length of the yarn to the package P and the number of times of rewinding due to yarn splicing errors, and a warning light 5 is provided at the top of the device.

FIG. 4 shows an example of a winding unit, in which the yarn is wound from the yarn feeding bobbin B to the package P. Tensor 1 after 9
Appropriate tension is applied by 0, and the slab catcher 1
1, the package P is rotated by the traversing drum 12.
It is wound up.

At this time, when the slab catcher 11 detects a defect in the yarn, the force/jitter built into the slab catcher 11 operates to forcibly cut the running yarn, and winding is stopped. The suction mouth 13 operates to guide the upper thread of the package P@ to the splicing device 14, and the relay pipe 15 guides the bobbin B side bobbin thread to the splicing device 14, where it is spliced by the optical device 14, and the yarn is spliced by the optical device 14. If the splicing is successful, winding is started again. Winding unit 4 like this
A large number of winders are arranged in parallel in a direction perpendicular to the plane of the paper in FIG. 4 to form one automatic winder.

In FIG. 2, the yellow button 3 is slidably supported by a support member 17 on a frame 16 on the operator's side of the wine day unit. The axis 18 of the yellow button 3 is 1 axis 1
A pin 21 at the other end of the lever 20 is connected to a lever 20 that can swing around a point 9. Located within. Further, FIG. 3 shows a normal winding state, that is, a state in which the yellow button 3 is pushed in, and the actuator 32 of the micro switch (MS 1 'I) is pushed by the lever 20 and the switch MSI is turned OFF.
Winding is performed in the N state.

24 is a yarn splicing control device for the winding unit 4, 25
6 control device 2 which is a setter for the number of repetitions of yarn splicing operation;
4 counts trigger signals from microswitches that are turned on once during one cycle of yarn splicing operation to detect yarn splicing errors. When the yarn splicing operation is repeated by the set value (once) determined by the setting device 25, a button differential signal is output from the control device 24, and the rotary solenoid SO is turned on. As a result, the lever 22 turns clockwise by a certain angle, the yellow button shaft 18 is pushed to the left, and the yellow button 3 protrudes. At the same time, the microswitch MSI is turned OFF, and thereafter the yarn splicing operation and winding operation are stopped, and the unit becomes a stop table.

Therefore, if the setting value (n) is set to 3, the number of thread splicing mistakes will be reduced to 3.
When the thread splicing is completed, the counter (CNT) counts up, the contact (CNTa) in the circuit to the thread splicing failure display solenoid (SO) closes, and the solenoid (So) is energized.
A yellow button 3 for indicating that thread splicing is not possible in FIG. 4 protrudes. still,
The set value n is set to n=4 or n=5 when it is difficult to pull out the yarn end with a fine yarn count, or set to n=2 or n=1 when the yarn is easy to join with a large yarn.

The pulses indicating the number of yarn splicing errors in each of the winding units are inputted to the length fixing device 4 of the winder together with the pulses indicating the winding yarn length of the package. The fixing length device 4 recognizes which spindle's winding unit has a yellow button based on the number of thread splicing errors, and outputs an alarm signal when the number of spindles with a yellow button display is m spindles or more. , lights up the patrol light 5 on the machine base to notify the operator.

FIG. 3 shows the alarm control flow of this fixed length device 4.

The CPU built into the fixed length device 4 receives the pulses sent from each winding unit 2, and identifies whether or not the pulses are continuous repeating pulses (steps ■ to ■).
If the pulse is continuous, it means that winding is continuing, so this pulse is counted and added up as the number of windings (step
), if the pulse is a sporadic one, it is determined that it is caused by a thread splicing error, the yellow counter is incremented by 1, and the yellow counter is waited for to count up to a predetermined value n (here, n=3) (
Steps ■■ to ■), when the yellow counter counts up to n=3, the yellow button 3 protrudes and the winding unit 2 enters the above-mentioned yarn splicing disabled state. When the winding unit 2 becomes incapable of yarn splicing in this way, the statistical counter common to each winding unit 2 is incremented by 1 (step ■). Each time a new winding unit 2 is generated, its contents are updated.

In the flow shown in FIG. 3(b), the CPU inputs the contents of the above-mentioned statistical counter at predetermined time intervals in order to know the number of units in the yarn splicing impossible state that has occurred in the winder, and the CPU inputs the contents of the statistical counter at predetermined time intervals, Check whether the number of spindles has reached m (steps ■ to ■).

When a winding unit with a predetermined number of spindles (m), for example three spindles, becomes unable to splice, the warning light 5 is turned on to notify the operator of this fact (step (2)).

When the warning light 5 is turned on, the operator goes around to the winding unit 1 concerned, removes the cause of the winding failure in the three-spindle winding unit 2 which is in a state where yarn splicing is not possible, and starts the winding unit 2. When one spindle of the winding unit enters the winding operation, the yellow counter belonging to that unit is cleared, and when all three spindles enter the winding operation, the contents of the statistical counter are cleared and a warning is displayed by the warning light 5. goes out.

The protruding state of the yellow button 3 is a natural result of a thread splicing error and is not artificially caused to protrude. Therefore, the warning display by lighting the warning light 5 eliminates frequent patrol monitoring by the operator. At the same time, if there is a cause of an abnormality in a common part of the winder machine base, it can be quickly removed.

[Effects of the Invention] As described above, according to the present invention, it is possible to confirm that the cause of the abnormality is at a common location in the winder machine base, and to quickly eliminate the abnormality. Therefore, the need for frequent patrol monitoring by the operator is reduced.

[Brief explanation of the drawing]

Figure 1 is a front view of an automatic winder showing an embodiment of the present invention, Figure 2 is a diagram showing the relationship between the yarn splicing control device and the constant length device, and Figures 3 (a) and (b) are abnormality warning devices. control flow diagram,
FIG. 4 is a schematic side view showing an example of a winding unit. In FIG. 6, 1 is an automatic winder, 2 is a winding unit, 3 is a yellow button, 4 is a fixed length device, and 5 is a warning light.

Claims (1)

[Claims] 1. A single machine is constructed by arranging a large number of winding units in parallel, and each winding unit is configured so that when a yarn splicing error is repeated a set number of times, the winding unit stops and a yarn splicing failure display is displayed. The automatic winder is characterized by having a detection means for outputting an alarm signal when a predetermined number or more of winding units displaying an indication that thread splicing is not possible occur in one winder, and an alarm display means. Abnormality warning device for winders.