JPS6365587B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for controlling the suction action of a suction pipe for holding yarn ends in an automatic winder, and more specifically, a method for controlling the suction action of a suction pipe for holding yarn ends in an automatic winder. Reduces intake energy loss in the intake pipe, which constantly provides intake action to maintain suction.
The present invention relates to a method for controlling the suction action that can minimize the yarn end holding action without impairing it and achieve a remarkable energy saving effect.

Each winding unit of an automatic winder equipped with an automatic thread splicing machine has a thread splicing machine that takes out the thread end (hereinafter referred to as the bobbin thread end) that is connected to the yarn feeding side when a thread breakage occurs. In order to facilitate It functions to suction the end and hold the bobbin thread end while the thread splicing machine repairs the thread breakage. However, in this type of automatic winder, in order to cope with irregular yarn breakage during yarn winding, the opening of the above-mentioned suction pipe is always provided with suction action, and therefore a large number of suction pipes are provided with the desired suction action. It takes an enormous amount of suction energy to maintain the suction force all the time, and since the time when the bobbin thread is not held is longer than the time when the bobbin thread end is held, most of the above suction energy is essentially wasted. The reality is that time that is needed is wasted.

The present invention has been made for the purpose of effectively controlling the intake action of the intake pipe described above, and minimizing the loss of intake energy without causing any hindrance to the function of the intake pipe itself.
In order to suction and grip the bobbin thread end, an opening/closing device for the suction action is provided at the opening of the suction pipe or the suction passage provided for each winding unit, and during normal winding, the opening of the suction pipe or the suction passage is provided. The intake passage is maintained in a closed state, and the opening/closing device is actuated in response to a thread breakage signal to open the opening of the intake pipe or the intake passage, and more preferably, the opening/closing device that has been opened in response to the thread breakage signal is closed after a short period of time has elapsed. It is characterized in that the opening/closing operation is performed again immediately before and immediately after the yarn splicing machine repairs the yarn breakage.

Embodiments of the method of the present invention will be described below with reference to the drawings. FIG.
2 is a winding drum for thread tying inserted into the peg, and 2 is a winding drum for thread 3 taken out from the thread 1.
The yarn passes through an unwinding accelerator 4, a gate filler 5, a tension motor 6, and a yarn clearer 7, and is then wound into a cheese-like package 9. If yarn breakage occurs between the yarn clearer 7 and the winding drum 2, the yarn is taken up by the suction action of the suction pipe 9, which has an opening 8 facing the yarn passage path above the yarn clearer 7. The bobbin thread end 3a continuous to the first side is sucked through the opening 8 and held as shown by the broken line. The yarn breakage is detected by a yarn breakage detector 10 made of a feeler, a photoelectric element, etc., and a yarn breakage signal is transmitted to the control amplifier 11, which instructs the counter 12 to count the number of yarn breakages and to control the winding drum 2. Brake to a stop. Reference numeral 13 denotes an intake main duct into which the intake pipe 9 of each winding unit is branched, and the main duct 13 is communicated with an intake fan 14.

The present invention provides an automatic winder in which a large number of winding units as described above are arranged in parallel and is equipped with an automatic yarn splicing machine. Inside, the opening/closing device 15 is held in a closed state, and the opening/closing device 15 is operated in response to a thread breakage signal to open the intake passage of the intake pipe 9.

To explain more specifically the opening/closing device 15 and its operating procedure, for example, as shown schematically in FIG. will be established. This opening/closing device 15 is composed of an electromagnetic solenoid 16, a movable piece 17, and a stationary piece 18, and is configured to open and close the intake passage of the intake pipe 9 from the outside.
A movable piece 17 is fixed to one side and a stationary piece 18 is fixed to the other side so as to sandwich the intake pipe 9 between the parts.
When the movable piece 17 is moved forward by the plunger 19 due to the excitation of the electromagnetic solenoid 16, the internal passage of the intake pipe 9 is closed as shown in the figure.
When the movable piece 17 is moved back by demagnetizing the electromagnetic solenoid 16 or by reversely excitation, the internal passage of the intake pipe 9 is opened as shown in FIG. 3. This electromagnetic solenoid 16 is connected to an appropriate thread breakage detector 10 disposed in each winding unit.
In response to the thread breakage signal from the thread breakage detector 10, the movable piece 17 and the plunger 19 are energized in the direction of retreat (hereinafter referred to as opening operation). After a few seconds, the plunger 19 will demagnetize.
is magnetized in the forward direction.
(Hereinafter, this will be referred to as a closing operation.) Thus, during normal winding of each winding unit, the opening/closing device 15 maintains the closed state, and the state in which no air intake is performed from the opening 8 of the intake pipe 9 continues. ing. When a thread breakage occurs in one of the winding units and the thread breakage detector 10 detects it, a thread breakage signal from the thread breakage detector 10 is transmitted to the opening/closing device 15, and the electromagnetic solenoid 16 is energized. The suction force from the suction main duct 13 is applied to the opening 8 of the suction pipe 9, and the yarn end 3a on the pipe yarn 1 side, which has broken above the opening 8, is immediately removed from the opening. It is sucked and held in the conventional manner by the suction action from 8. Thereafter, if a yarn splicing device is provided for each winding unit, the opening/closing device will remain open until the thread splicing device completes the yarn breakage repair operation, and the yarn splicing device will repair the yarn breakage. The time required to complete the operation or repair yarn breakage by the yarn splicing device is set in the timer 20, and the operation of the timer 20 causes the opening/closing device 1 to
5, perform the closing operation. In addition, in an automatic winder that does not have a yarn splicing device for each winding unit and is equipped with a traveling yarn splicing machine that is commonly provided to 8 to 10 units, for example, the opening/closing device 15 is opened in response to a yarn breakage signal. Then, after a short time (2 to 3 seconds) has elapsed via the timer 20, the opening/closing device 15 is once closed, and then when the yarn splicing machine arrives and stops, the opening/closing device 15 is opened again, and after the desired time has elapsed. The intake pipe 9 is closed by the timer 20 or when the yarn splicing machine starts moving to the next winding unit.
Controls the intake action of.

In addition to the electromagnetic solenoid type described above, an electromagnetic shutter 21 as shown in FIG. 15 does not require any particular limitation. Further, the installation location of the opening/closing device 15 is not limited to the intake passage of the intake pipe 9, but may be installed at the opening 8 of the intake pipe 9 as shown in FIG.

Furthermore, as described above, as a means for controlling the opening/closing device 15 when the traveling type yarn splicing machine stops and starts moving, for example, as shown in FIG. In other words, the wing plunger 23 is projected by the displacement action of the drop wire 24 when the thread breaks, and is retracted by the return of the drop wire 24 to its normal position after the thread break is repaired. Utilizing the retracting motion, as schematically shown in FIG. 7, when the wing plunger 23 protrudes, the switch 25 is turned on and the sensitive switch 26 is energized to detect the arrival of the yarn splicing machine 22 using a magnet installed in the yarn splicing machine 22. 27, the detecting operation of the sensitive switch 26 commands the opening operation of the opening/closing device 15, and then when the wing plunger 23 is retracted as the yarn splicing machine 22 finishes the yarn breakage repair operation. , the switch 26 is turned off and the switching device 1 is turned off.
This can be done by instructing the closing operation in step 5.

As described above, the method for controlling the suction action of the suction pipe according to the present invention uses the opening of the suction pipe provided in each winding unit or the suction A suction opening/closing device is provided in each passage to keep the opening of the suction pipe or the suction passage closed during normal winding, and when the thread breaks, the opening/closing device is activated by a thread breakage signal from the thread breakage detector. is operated to open the opening of the intake pipe or the intake passage, and then close it after a short period of time has elapsed, and when the traveling type yarn splicing machine arrives and stops, the opening/closing device is operated to open the opening of the suction pipe or the suction passage after a predetermined period of time or when the yarn splicing machine stops. Since the opening/closing device is closed at the start of movement, the amount of air taken in from the above-mentioned intake pipe per winder is small, and the intake fan 14 for each intake main duct 13 of each winder is no longer required, which was previously used. A single intake fan with a capacity of 200 kW can perform the function of the intake pipe in several winders.
Therefore, in an automatic winder where a large number of winding units are arranged in parallel and each winding unit is equipped with an intake pipe for suctioning and holding the yarn end on the yarn feeding side when the yarn breaks, the intake energy for the intake pipe is significantly reduced. savings are achieved.

[Brief explanation of drawings]

The drawings show embodiments of the invention,
Figure 1 is a schematic side view of the main parts of the winding unit, Figures 2 and 3 are side views schematically showing aspects of the intake control section, with one part omitted, and Figures 4 and 5 are the intake control unit. FIGS. 6 and 7 are side views schematically showing other aspects of the invention, with some parts omitted, and FIGS. 6 and 7 are side views and electrical wiring explanatory diagrams schematically showing control procedures by the yarn splicing machine. 1 is a tube yarn, 2 is a winding drum, 3 is a yarn, 8 is an opening, 9 is an intake pipe, 10 is a yarn breakage detector, 1
5 is an opening/closing device, and 22 is a yarn splicing machine.

Claims (1)

[Scope of Claims] 1. An opening/closing device for suction operation at the opening of the suction pipe or suction passage provided in each winding unit for suctioning and gripping the yarn end connected to the yarn feeding side when the yarn breaks. is provided to keep the opening of the intake pipe or the intake passage closed during normal winding, and when the thread breaks, the opening/closing device is actuated by the thread breakage signal from the thread breakage detector to open the intake pipe. After opening the opening or intake passage, it is closed after a short period of time has elapsed, and then the opening/closing device is opened when the traveling yarn splicing machine arrives and stops, and the opening/closing device is closed after a predetermined time or when the yarn splicing machine starts moving. A method for controlling the suction action of a suction pipe for holding yarn ends in an automatic winder, characterized in that: 2. A suction action control method for holding a yarn end in an automatic winder according to claim 1, wherein the opening/closing device is constituted by an electromagnetic valve or an electromagnetic shutter operated by excitation.