JPS60213670A - Automatic winder having pneumatic ending device - Google Patents

Abstract

PURPOSE:To achieve excellent winding work by interrupting air supply upon dropping of the air pressure in a pressure air supply tube for a pneumatic ending device below setting level. CONSTITUTION:A pressure switch 14 is provided to a pressure air supply tube 19 for pneumatic ending devices 81, 82 to switch between the changeover valves 161, 162 upon dropping of the air pressure in said tube 19 below setting level thus to interrupt air supply and discharge to the outside. Since defective ending due to low pressure air supply is prevented, excellent winding is achieved.

Description

Detailed Description of the Invention The present invention provides an automatic wine goo having a pneumatic yarn splicing device, in which when the air pressure to the yarn splicing device falls below a certain value, the air with decreased pressure is removed and the air pressure decreased. This invention relates to an automatic wine gooter that prevents the occurrence of defective yarn splicing parts as a result of pneumatic yarn splicing.

Automatic wine machine with pneumatic splicing device.

Pressurized air is supplied from a compressor attached to the wine goo or from a pressure air source installed in the production area so that threads can be spliced automatically when thread breaks occur during normal operation, and abnormal threads can be spliced automatically. When cutting or splicing all spindles, the & machine automatically stops and splices each spindle in sequence, so that the splicing can be performed using sufficient air pressure.

However, the condition of yarn splicing using air pressure varies depending on the type, strength, appearance, diameter, fuzziness, etc. of the yarn even when the air pressure is the same.If the supplied air pressure decreases, the splicing will fail or the yarn splicing will fail even if the splicing is performed. It has the disadvantage of causing thread splicing.

In order to prevent the above-mentioned defective yarn splicing portions from occurring, the present invention is designed to detect a decrease in the pressure of the air supplied to the yarn splicing device due to an increase in the number of yarn splicing weights and fluctuations in the pressure air source. The purpose of this device is to stop the supply of low-pressure air and release the low-pressure air to the outside of the device, and it is used as a pressure switch to supply air to the pressure air supply pipe to the pneumatic piecing device. The embodiment shown in the accompanying drawings will be described in reference to *Q"M', which is characterized in that a switching valve is provided to discharge the air 41 supplied to the yarn splicing device out of the pipe when the air pressure is below a certain value.

Fig. 1 shows an automatic winder equipped with the device of the present invention, in which yarns b? r A tension mechanism (1), a yarn running detector 121 k A slab catcher with 1 grooved traverse 9 drums (3), and a cage (4) that rotates in contact with the drum to wind it up. A thread running detector (2) detects when the thread is missing.
) The operating cam (5) engages with the driving shaft and starts when the clutch mechanism is switched by a signal from the motor (5). The entire thread, that is, the upper thread, is suctioned by the needle thread suction tube (6), the bobbin thread is suctioned and held by the bobbin thread suction tube (7), and each is conveyed to the splicing device (8) for splicing. , the winding operation is started again, and if the paternal deletion is when the supply pipe yarn a runs out, the operation cam (5) is activated and the empty pipe yarn upper actuating piece (9
) is released from the bedding αQ at the supply position and exchanged with the preparation pipe yarn, and the new pipe yarn is conveyed to the opening thread and child thread splicing device (8) on the thread cage side (4) and spliced. The winding operation is restarted, and when the winding progresses 17 and the package (4) grows to a predetermined diameter, and the number of yarns is reached, that is, when the winding operation is fully wound, the winding operation is automatically stopped. let

The thread splicing operation when the thread is missing is set in advance to repeat a predetermined plurality of cycles, with one rotation of the operating cam (5) as one cycle, and the thread splicing is completed within the set number of cycles. 11. When the yarn splicing cycle is completed, the winding is restarted, and if the yarn splicing is not completed within the set number of times, 'f! r; When the yarn splicing cycle of re-end ends, the yarn running detector (2) detects this.1. It is configured to cause the winding operation to continue in the stop state F for the entire length of time.

The yarn splicing device (8) utilizes a Senriki pneumatic mechanism, for example, the pneumatic yarn splicing device proposed by the applicant in Japanese Patent Application No. 58-fi7866 or other known devices may be used.
1-Thread suction tube (6) and bobbin thread suction tube 17)K
Therefore, the upper thread and bobbin thread, which are each suctioned and held, are conveyed to the splicing device (8) and each thread end is cut, *I! In this method, the ends of the twisted yarns are overlapped with each other, and the yarn splicing is performed by injecting pressurized air from a nozzle into the overlapping yarn ends for a short period of time.

As shown in Figure 2, the yarn splicing device (81'+82...)
Pressure air supply pipes (11, 112...) for
An on-off valve az1, a mist cenogrator αJ, a pressure switch 0, a reduced field valve (+51) and a switching valve (161°162...) are installed in order from the pressure air source side, and the air in the pipe a9 is The switching valve (1611162... is designed to switch between pressure and pressure based on the signal from the pressure switch I that detects air ETh.

That is, as shown in the operation circuit in Fig. 3, the power supply circuit (2
When power is supplied to [11CI'l) and the air pressure in the □pipe "0" is below the set pressure, the magnetic switch (+41 is shown as a solid line in the figure) and the magnetic switch Mlk is
Since the closed circuit t1 and the magnet switch M2 are opened, the switching valves (16+, 162...) do not operate and pressurized air is supplied to the yarn splicing device (81182...) VC, so if yarn breakage occurs. Yarn splicing work is performed by the rotation cycle of the operation cam (5) at any time, but the pipe OI
When the air pressure inside falls below the set pressure, the power switch O
n; i times 1 dotted line □ state VC is replaced, magnet switch M2 is closed, normally open contact rn* is closed, alarm lamp 1 is lit, and the switching valve (161° 162...
・) Close the valve on the supply air side (1711172...) and open the valve on the atmosphere communication side (18t, lfh...). If thread breakage occurs during this release period, the operating cam (5) will release the set cycle rL! The thread splicing operation is performed by rotating the thread as much as possible, but the thread splicing is not completed.
The winding work also stops. The cause of fluctuations in supply air pressure has been removed and there are no pipes! When the air in ll is restored to more than the setting of E, the switch 04tfi is restored to the original state shown by the solid line, magnet switch M2 is opened, alarm lamp L is turned off, and the selector valve (161° 1.6 ), pressurized air is supplied to the splicing device (8t+8*...), making splicing possible and restarting the yarn winding.

In this way, according to the present invention, when the air pressure in the pressure air supply pipe to the pneumatic yarn splicing device W installed in the automatic winder drops below a set value, this is detected by the pressure switch and the switching valve is activated. This prevents low-pressure air from being supplied to the yarn splicing device and releases it outside the device, eliminating the occurrence of defective yarn splicing due to the supply of low-pressure air and ensuring high-quality winding. It has the effect of being able to perform thread work.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; Fig. 1 is a side view showing an example of an automatic winder according to the invention, Fig. 2 is a system diagram of the main parts, and Fig. 3 is a circuit diagram for explaining the operation. It is. (81, (8+), (82)...Pneumatic splicing device (Ill, (lit), (11+)...
・Pressure air supply pipe 04)... m switch (1, 61), (162)... switching valve patent applicant
2 people outside Oshikazu Seisakusho Co., Ltd.

Claims (1)

[Claims] For a pressure air supply pipe line to a pneumatic yarn splicing device. A pneumatic yarn splicing device characterized by being equipped with a control switch as well as a switching valve that cuts off the air supplied to the yarn splicing device and discharges the air to the outside of the pipe when the supply air pressure falls below a certain value. An automatic wine goo that will take care of you.