JPS6081322A - Apparatus for distributing compressed air in air twisting type spinning machine - Google Patents

Abstract

PURPOSE:The titled apparatus having main ducts branched through solenoid valves to the respective spinning units, the respective pipelines between the solenoid valves and the spinning units connected to a pressure monitor for each main duct, and capable of detecting the abnormality in internal pressure of the pipelines and operating the solenoid valves and eliminating the wasting of air. CONSTITUTION:An apparatus for distributing compressed air having main ducts 2 and 2, provided along the row of spinning units 3 provided on both sides in the longitudinal direction of a machine frame, and branched through solenoid valves 8 to the respective spinning units, a pressure monitor 10 for each main duct to operate the corresponding solenoid valves 8 directly on detecting an abnormality in pipelines for cutting off the supply of the compressed air. Thus, the air supply is restarted in the desired timing by connected driving with the yarn ending operation.

Description

Description: TECHNICAL FIELD The present invention relates to a distribution device for working compressed air in a spinning machine. Furthermore, the present invention relates to a device for distributing compressed air to each spinning unit in an air heating type spinning machine such as a binding spinning device that heats a fiber bundle using compressed air as a working medium and spins it into yarn.

In conventional binding spinning devices, a large number of spinning units are arranged in parallel on one or both sides along the longitudinal direction of the machine, and a swirling flow of air is created by supplying compressed air into air false twisting nozzles provided in each unit. The fiber bundles are grown and heated to form binding threads. A compressed air supply device in a conventional device is provided with a main duct connected to a compressed air source along a row of spinning units, and branches from the main duct to each spinning unit via a subduct. Although a manual valve was provided between the spinning units, it was not possible to control the air supply to each spinning unit individually. Therefore, even if a yarn breakage occurs, compressed air will continue to be supplied into the air false twisting nozzle and will not contribute to yarn production.
＼It was wasted. Furthermore, since a swirling flow is always generated in the air false twisting nozzle during yarn splicing, it is difficult to feed the yarn end on the package side back through the nozzle. It was impossible to splice the threads by hand. For this reason, in the prior art, thread splicing was performed exclusively by knotting using the knock method.
According to this, there were many problems such as knots causing troubles in subsequent processes 〇Object and structure of the invention The present invention was made in order to solve the problems in the prior art of slanting, thread breakage, etc. When an abnormality occurs, the supply of compressed air is immediately cut off to only that unit to prevent wastage of air, and the air supply can be restarted at the desired timing in conjunction with the thread splicing work of the automatic thread splicing machine. The present invention provides a compressed air supply device that does the following.

Furthermore, the present invention provides a device that can constantly monitor the presence or absence of pressure abnormalities using a pressure monitor connected to the air pipe line of each spinning unit, and can immediately stop the spinning units.

That is, the present invention provides an air-heated spinning machine having a large number of spinning units arranged in parallel in the longitudinal direction of the machine, in which a main duct connected to a compressed air source is provided along the spinning unit row, and a main duct connected to a compressed air source is provided along the spinning unit row. After branching into a plurality of subtacts, the system branches to each spinning unit via a solenoid valve, and further connects each pipe line between the solenoid valve and the spinning unit to a pressure monitor to detect an abnormality in the pressure inside the pipe line. This is a compressed air distribution device characterized in that, when a compressed air is released, the corresponding solenoid valve is immediately operated to cut off the supply of compressed air.

Example The present invention will be explained in more detail based on the drawings.

FIG. 1 is a plan view schematically showing the piping of the compressed air distribution device of the present invention. Compressed air is supplied from a compressed air source such as a compressor (not shown), passes through Tuntai 1, and then goes into two main ducts 2,
It is branched into 2. The main ducts 2 and 2 are each tied together with M
Spinning unit 3 installed on both sides of the machine in the longitudinal direction of MLT
A regulator 4 is interposed between the electric valve 1 and the electric valve 1 to maintain the required pressure. Reference numeral 5 is a pressure gauge that indicates the pressure on the output side of the regulator 4. The body B1 of each main duct 2 (from which the subducts 6 of the count are paired in pairs + valve train 7
It is branched from the main duct 2 via. Furthermore, power supply pipes 9 branch from each subduct 6 to a plurality of (three in this case) spinning units 3 via electromagnetic valves 8, respectively. Therefore, the compressed air is transferred from the compressed air source to the main duct 2.
．． After passing through the subduct 6 and the air supply pipe 9, it is distributed to each spinning machine L2 and SOTO3.

In the present invention, the S valve 8 of each air supply pipe 9 is further specified as nil.
and the spinning unit 30 with pressure monitors lO and l'
; *;t L, is constantly monitoring the pressure in the limb canal K? If an abnormality in pressure is detected by the monitor 10, the market 8 corresponding to the pipe line and the trough 147 of the spinning unit 3 described below
It is electrically wired so that this signal is transmitted to the '45B clutch 25 of No. 1.

As shown in Fig. 2, the draft device of the spinning unit has three pairs of draft arms, 1411 and front rollers 22° and 22'.
;Middle apron 23.23': and pack roller 24
, 24', of which pack bottom row 22
4 is driven from a drive shaft common to all units via a t[fl clutch 25 so that spinning unit 4 can be operated and stopped independently of other spinning units. code 2
6 indicates an air false twist nozzle. In this structure, when the electromagnetic clutch 25 is actuated to stop the rotation of the pack rollers 24 and 24', the draft device A that is gripped by the pack rollers 24 and 24' is braked, while the middle apron 23.2
3', the part gripped by the front rollers 22 and 22' continues to move forward, so the Slyno (is)
(The sliver supply is cut between the crawler and the middle apron, and the sliver supply is substantially stopped.) By the above-described configuration of the present invention, during normal spinning, the compressed air is regulated to a certain redundant pressure by the regulator 4, and the sliver supply is substantially stopped. If an abnormality is discovered in the pressure in the air supply pipe 9 corresponding to a specific spinning unit in the zero pressure monitor 10 which is distributed to each spinning unit 3 according to the above piping system and the necessary heating work is performed, this The signal is immediately transmitted to the electromagnetic valve 8 corresponding to the spinning unit 3 and actuated to shut off the pipe.

In this case, the pressure abnormality is mainly caused by two factors: a decrease in the air pressure supplied to the spinning unit (II) due to foreign matter clogging in the air supply pipe 9, which has a relatively small diameter, and an increase in air pressure due to an abnormality in the air false twisting nozzle of the spinning unit. In a spinning machine that directly heats the fibers with air flow, this abnormal air pressure is a serious matter and immediately affects the quality of a single yarn, so if it exceeds a certain limit, it will be called an abnormality. A signal is made to be emitted.

This abnormality signal is simultaneously transmitted to the electromagnetic clutch 25 of the draft device, so the back rollers 24, 2
4' is stopped immediately and the supply of sliver is stopped. Therefore, it is possible to avoid spinning yarns of poor quality and also to prevent waste of compressed air.

The solenoid valve 8 and the electromagnetic clutch 25 may be connected to a yarn breakage sensing device provided in each spinning unit, and when a yarn breakage occurs, both can be activated by the same operation as described above.

After the problem is corrected and the thread is spliced, the solenoid valve 8 and the electromagnetic clutch 25 are restored by a signal issued from the thread M machine at an appropriate time according to the splicing operation. , spinning is restarted again.

Furthermore, does the solenoid valve 1 located upstream of the main duct 2 stop supplying air to the entire machine? The manual valve 7 is also used when the spinning units 3 are stopped in groups of several for periodic inspection.

In the diagonally upper fruit &lJ, the main duct 2 is once branched into the tube duct 16 and further distributed to the air supply pipe 9 corresponding to each spinning unit 3, but this is simplified in the present invention shown in Figure 8g3. The trachea 9 may be branched directly from the main duct 2 by omitting the duct 6, as in the case of ``The trachea 1''.

[Brief explanation of drawings]

Fig. 1 is an air distribution diagram of one embodiment of the present invention, Fig. 2 is a schematic side view showing the mechanism of the draft device of the spinning unit, and Fig. 3 is a schematic side view showing the mechanism of the draft equipment of the spinning unit. The piping diagram is shown. 2...Main tact, 3...Spinning unit.
Nod, 4...Regulator, 6...Zandact, 8...\Lm square, 9...Air supply pipe,
10--Pressure monitor, 25--Electric clutch. Ken i1 output kF1 person Toyota Automobile Co., Ltd. 6λ wall) ν operation patent application agent Patent attorney Akira Inuki Patent attorney Kazuyuki Nishidate Patent attorney Akira Yamaguchi Patent attorney Masaya Nishiyama Figure 1 Figure 3 Figure 2

Claims (1)

[Claims] 1. In an air-heated spinning machine having a large number of spinning units arranged in parallel in the longitudinal direction of the machine, a main duct connected to a compressed air source is provided along the spinning unit row, and After branching into multiple subducts, it branches to each spinning unit via a solenoid valve, and each pipe between the solenoid valve and the spinning unit is connected to a pressure monitor, and an abnormality in the pressure inside the pipe is detected. A compressed air distribution device characterized in that the compressed air distribution device is configured to immediately operate a corresponding solenoid valve to cut off the supply of compressed air when the situation occurs.