JPH05270737A - Automatic winder drive method - Google Patents

Abstract

PURPOSE:To resume the operation of an automatic winder automatically, if retention of empty bobbin is cancelled, even when the automatic winder stops due to retention of empty bobbin. CONSTITUTION:In an automatic winder in which an empty bobbin conveyance passage 2 is provided along winding units U1 to U30 of multi-spindle, retention of an empty bobbin B2 is detected by an empty bobbin detection sensor PHO1 which is provided in the empty bobbin conveyance passage 2, and a command to stop notching is given to the winding units U1 to U30 in accordance with its retention time. Then, a command to resume notching is given to the winding units U1 to U30 in accordance with the elapsed time from the time when retention of empty bobbin B2 is not detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding unit for stopping notching of an empty bobbin when the empty bobbin is congested on the path.
The present invention relates to an automatic winder driving method that enables efficient restart.

[0002]

2. Description of the Related Art In an automatic winder, a winding unit is provided in multiple weights, an actual bobbin transfer path and an empty bobbin transfer path are arranged in front of and behind the winding unit, and the empty bobbin transfer path and the actual bobbin transfer path are provided. A continuous automatic bobbin supplying device (preparation area) is provided by connecting the paths. The actual bobbin from the continuous automatic bobbin feeder is carried out to the actual bobbin transfer path in the state where the tray is erected, and is properly taken into the winding unit where it is wound into a package and made into an empty bobbin to the empty bobbin transfer path. Be carried out. The empty bobbin from the empty bobbin carrying path is taken out from the tray by the continuous automatic bobbin supplying device, a new actual bobbin is mounted on the tray, and the new bobbin is ejected and carried out to the actual bobbin carrying path.

In this automatic winder, there is a problem with an empty bobbin removing device, a feeding device, etc., and the empty bobbin is congested in the empty bobbin transport path. The picking unit cannot discharge empty bobbins. For this reason, an empty bobbin detection sensor that detects an empty bobbin is installed in the empty bobbin transport path.
When the sensor detects the retention of the empty bobbin, the winding unit of the predetermined weight is not knotted (the bobbin is not replaced).

[0004]

However, in the conventional automatic winder, even if the empty bobbin is no longer retained after the stopping of the notching, the operation cannot be resumed without waiting for an artificial operation, resulting in an increase in operating efficiency. There was a problem that was bad.

The present invention has been made in consideration of the above circumstances, and even if the automatic winder is stopped due to the retention of the empty bobbin, the operation can be automatically restarted if the retention of the empty bobbin is eliminated. An object is to provide a driving method of an automatic winder.

[0006]

In order to achieve the above object, in the method of driving an automatic winder of the present invention, when the retention of empty bobbins discharged from the winding unit is detected, they are provided in the empty bobbin transport path. The empty bobbin detection sensor detects the stay of the empty bobbin, commands the winding unit to stop the knotting according to the stay time, and then takes up the reel depending on the elapsed time from the time when the empty bobbin stay is no longer detected. Command the unit to restart knotting.

[0007]

According to the above method, the empty bobbin detection sensor detects the stay of the empty bobbin, and according to the stay time,
For example, as the staying time becomes longer, by sequentially instructing each winding unit to stop knotting, only the winding unit at the location where the staying occurs stops knotting, and the operation can be continued for the other weights. Further, after the knotting is stopped, depending on the elapsed time from the time when the retention of the empty bobbin is no longer detected, for example, by sequentially instructing many winding units to restart the knotting as the elapsed time becomes longer, The operation can be automatically restarted sequentially from the winding unit at the location where the retention of the empty bobbin is resolved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view of an automatic winder. In the figure, U1 to U30 are winding units provided on multiple spindles.
1st span SP1 and 2nd span SP2 every 10 units
And the second span SP3. Winding unit U
1 to U30, an actual bobbin transfer path 1 and an empty bobbin transfer path 2 are provided, and a preparation area S is provided on the side of the winder W.
Is provided.

The actual bobbin transfer path 1 and the empty bobbin transfer path 2
Are connected in the preparation area S to form a closed loop.
In the preparation area S, a withdrawal station 3 such as an empty bobbin, a real bobbin supply station 4, and a yarn bobbin end station 5 of the real bobbin are provided in the above order along the transport path. Reference numeral 6 is a bypass line branched from the actual bobbin transfer path 1, and joins the empty bobbin transfer path 2 again. In the line 6, defective bobbins are temporarily stocked. That is, the bobbin transferred on the empty bobbin transport path 2 has an empty bobbin having no yarn layer, a bobbin having a small amount of yarn but unable to be re-supplied to the winder W, and a large amount of yarn. There is a bobbin with a residual thread that has layers and can be re-supplied to the winder W, and these are mixed and conveyed.

An empty bobbin transport path 2 is provided with an empty bobbin detection sensor PHO1 such as a photoelectric tube on the downstream side of the span SP1. This sensor PHO1 has spans SP1 to SP3.
It is connected to the winder controller 10 that controls the drive of each winding unit U1 to U30. The winder control device 10 includes a control circuit for controlling the winder W based on the control method of the present invention.

In the above, the actual bobbin B from the preparation area S is in the state of standing upright on the tray, and the actual bobbin transport path 1
Is taken out from the actual bobbin transport path 1 and taken into each of the winding units U1 to U30 and wound into a winding package. At this time, a constant length control device (not shown) detects whether the winding packages of the winding units U1 to U30 are full, and the winder control device 10 performs a winding operation of each winding unit U1 to U30, that is, a drum. The rotation and stop of the yarn, the detection of defects in the winding yarn, and the knotting operation by the yarn joining device are controlled.

The empty bobbin B2 emptied by the winding units U1 to U30 is discharged to the empty bobbin transport path 2, returned from the empty bobbin transport path 2 to the preparation area S, and the empty bobbin is removed at the station 3 for removing the empty bobbin. Is removed from the tray, the actual bobbin is attached to the empty tray at the supply station 4, the yarn end of the actual bobbin is squeezed out at the yarn end outlet station 5, and the yarn is delivered to the actual bobbin transport path 1. It

When a trouble occurs in the preparation area S, the empty bobbin B2 is jammed and stays on the empty bobbin transport path 2 and its length increases.

The empty bobbin detection sensor PHO1 detects the degree of clogging of the empty bobbin B2. Then, the detection signal of the empty bobbin detection sensor PHO1 is input to the winder control device 10, and the winder control device 10 judges that the empty bobbin is clogged when the empty bobbin is detected for about 1 second in order to distinguish it from the normal passage of the empty bobbin B2. .. When the empty bobbin B2 is accumulated, the winder control device 10 sequentially passes through the output line 11 from the upstream span SP3 to the downstream spans SP2 and SP1 each time the residence time elapses, for example, 2 seconds. Outputs a knotting stop command. When the knotting is stopped on the span, the winding unit that winds up continues to wind up until the bobbin thread runs out or the thread is cut due to a thread defect, but a new actual bobbin is used. It stops without taking in or discharging the empty bobbin. In this way, by stopping the knotting in accordance with the retention of the empty bobbin, the number of winding units that can be operated as much as possible can be left and efficient operation can be performed.

The empty bobbin detection sensor PHO1 continuously detects an empty bobbin even after the knotting is stopped. When the empty bobbin is no longer detected after the knotting stop command is issued, the winder control device 10 outputs a knotting restart command to each of the spans SP1 to SP3 in accordance with the elapsed time from that point.

The knotting restart command is, for example, when all the spans SP1 to SP3 are not knotted and two seconds elapse from the time when the empty bobbin detection sensor PHO1 stops detecting empty bobbins, only the span SP3 is restarted. Then, the knotting is restarted in the order of the spans SP2 and SP1 every 2 seconds. As a result, as the empty bobbin is transported, the span S
Notting can be restarted in the order of P3 to 1.

In addition to the above, if the empty bobbin detection sensor PHO1 does not detect an empty bobbin for 20 seconds, the winder controller 10 determines that the empty bobbin has been completely retained, and restarts knotting for all spans SP1 to SP3. To restart the drive of the entire winder W. The restart of driving of the entire winder W is also executed by the operation of the reset switch by the operator.

[0019]

In summary, according to the present invention, the empty bobbin detection sensor detects the stay of the empty bobbin and commands the winding unit to stop the knotting in accordance with the staying time, thereby winding the staying location. By stopping knotting only in the unit, and after stopping knotting, by commanding the winding unit to restart knotting according to the elapsed time from the time when the retention of empty bobbins is no longer detected,
Since the operation can be automatically restarted sequentially from the winding unit at the location where the retention of the empty bobbin is resolved, the operation efficiency of the automatic winder can be improved.

[Brief description of drawings]

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

[Explanation of symbols]

 2 Empty bobbin transport path U1 to U30 Winding unit PHO1 Empty bobbin detection sensor B2 Empty bobbin

Claims (1)

[Claims] 1. In an automatic winder having an empty bobbin transfer path provided along a multi-weight winding unit, an empty bobbin detection sensor provided in the empty bobbin transfer path detects the stay of the empty bobbin and determines the stay time. The automatic winder is characterized in that the winding unit is instructed to stop knotting, and then the winding unit is instructed to restart knotting in accordance with the elapsed time from when the retention of empty bobbins is no longer detected. Driving method.