KR810001719B1 - Apparatus for stopping an open-end spinning machine - Google Patents

Abstract

A method of stopping an open-end spinning machine of the type comprises fibre feed means including a fibre feed roller, spinning means for forming a spunyarn from fibres fed thereto from the fibre feed means, and yarn delivery rollers for delivering a yarn formed by the spinning means, including the step of starting to decelerate the fibre feed roller and yarn delivery rollers so that they decelerate in synchronism, wherein the improvement comprises the step of stopping the fibre feed roller and whist continuing deceleration of the yarn delivery rollers and then stopping the decelerating yarn delivery rollers.

Description

Stopper of open end spinning machine

BRIEF DESCRIPTION OF THE DRAWINGS The schematic diagram of the open end spinning machine provided with the stop control apparatus of this invention.

The present invention relates to an open end spinning machine for producing yarn for textiles, and more particularly to an apparatus for stopping an open end spinning machine in a controlled state.

When stopping the operation of the radiator of the open end spinning machine, it is desirable to stop the spinning machine so that at all yarn positions, the end of the yarn is not drawn out of the doping tube and has the desired end of the yarn in the correct position.

This feature is desirable, so that when the spinning machine is used to resume the spinning operation, not only the ends of the yarns are effectively contacted at all yarn positions, but the ends of the yarns have the desired yarn properties at the joining positions.

Although methods for stopping open end spinning machines have been proposed in the past, there are many drawbacks that effective bonding at all locations of the spinning machine has not been carried out continuously.

British Patent No. 1,373,247 relates to a method of stopping an open end spinning machine, i.e., a fiber feed device, a spinning device, and a thread feeder, in such a state, decelerate from a spinning speed to a constant delay speed and simultaneously maintain a constant speed ratio. Keep it.

At this constant delay spinning speed, the feed to the thread feed stops after the fiber feeder stops.

This method was developed for the open end spinning machine with high manufacturing speed. It is easy to join the seal and replace the completed failure kit by reducing the spinning machine speed to a constant spinning speed and maintaining the speed ratio of spinning elements. I want to. Nevertheless, there should be a minimum spinning speed that can be used to satisfy the production of the yarn.

Since the lowest spinning machine speed is relatively high, the stopping of the fiber feeder at a constant speed and in particular the braking of the thread feed roller is very complicated. For this reason, this known apparatus could not satisfactorily stop the spinning machine.

As described in British Patent No. 1,419,440, a known stopping method is to stop the supply of fibers to the spinning machine in the spinning device by turning off the power of the motor running in the open end spinning machine and applying the braking to the fiber feeder. .

After stopping the supply of fibers in this way, the thread feed roller continuously pulls the yarn out of the spinning apparatus.

Non-contact detectors are installed to detect pulses on the scale appearing on the disc attached to one of the actual feed rollers and to emit these pulses to the counter. The pulse emitted by the detector thus corresponds to the amount of yarn supplied. Sufficient braking torque is applied to decelerate the feed roller after the fixed length of the thread as a counter is drawn out, and this braking torque is increased until the feed roller is stopped. There are also many drawbacks to this method of stopping because the spinning speed is interrupted in the transport of the fibers.

In other words, a test to confirm that the end of the thread was not drawn out from the spinning device showed that it is necessary to apply braking torque to the roller during the rotation of the thread feed roller rotating at a relatively high speed.

Since the problem of braking the supply roller completely arises as has been done in this known apparatus, in order to solve this problem, the first application of the braking torque to the supply roller has been carried out. However, this is because an additional component is added to the control device, so that the control device tends to be complicated, and thus it is difficult to ensure that the end portions of the seals are joined at predetermined positions. It is an object of the present invention to provide a stop means for controlling the sprayer so that an effective bonding at the spinning yarn station can be achieved in the operation of the open end spinning machine.

In order to solve this problem by the present invention, in the apparatus of the present invention which stops the open end spinning machine, after the fiber feed device and the thread feed roller start deceleration, that is, during the continuation of the deceleration, the thread feed roller stops, and then a predetermined time. The seal feed roller stops inside.

A preferred device is to have a means for releasing a predetermined rotational speed of the decelerated fiber feed device or the decelerated yarn feed roller and then emitting a signal to start the stop of the fiber feed device. A predetermined time after the response of the detector to detect the rotational speed of the fiber feed device or the thread feed roller to stop the fiber feed device and to stop the slow down the thread feed roller. It is an object of the present invention to provide an open end spinning device for producing yarn for textiles having a time delay set to start operation of the braking system.

An advantage of the present invention is that the end of the seal is stopped so that the open end spinning machine is stopped in a controlled state, the end of the seal in each spinning device is in a predetermined position, and the end of the seal can be effectively joined at the start of the spinning machine. It is a point with the shape of.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings, that is, a unique spinning station will be described below.

)의 사이에서 개섬(開纖)로울러(4)가 작동할 수 있도록 전진한다.According to the drawing, the spinning station comprises a recessed part formed by a sliver 1, a conveying roller 2, and a conveying plate 3.

Advances the open rollers (4) in between.

The fibers are removed from the open rollers 4 and transported from the fiber feed pipe 5 into the air stream flowing downward of the spinning rotor 6.

The yarn 7 is drawn out of the spinning rotor 6 via a doping pipe 8 by a pair of feed rollers 9 and 10 and driven by a drive roller 12. (11).

The main drive motor 13 has a gear 14 fixed to the main shaft thereof. This tooth 14 was operably coupled like the tooth 15 mounted to the extension 16, and the tooth 15 was operably coupled to the supply roller 10 of each radiating unit. The electromagnetic clutch 17 is engaged between the gear 15 and the supply roller extension 16 when it is actuated.

The feed roller extension 16 extended through the clutch 17 and the gear 15 so as to form an attachment portion of the output gear 18. The output gear 18 is operably coupled with the gear 19 fixed to one end of the extension 20 operably coupled to the package drive roller 12 of each radiating unit.

In addition, the electronic brake unit 21 is installed in the package driving roller 20. The drive electric drive is connected to the tooth 22 in which the gear 15 is mounted on one end of the intermediate shaft 23, and the intermediate shaft 23 is connected to the other intermediate by the kettle clutch 25 of the fiber feed roller. The shaft 24 is coupled. The pulley 26 is mounted at the end of the intermediate shaft 24, and the pulley 28 fixed to one end of the letter shaft 27 is driven along the pulley 26 for driving the pulley shaft 27. do.

The pulley shaft 27 extends according to the spinning machine, and the pulley 29 is attached at regular intervals to the pulley shaft 27 so as to transmit a drive to the pulley 30 mounted on the pressure shaft of the gear box 31. .

The pulley 32 mounted on the output side of the gear box 31 transmits drive to the chain drive wheel 33 which drives the chain 34. The chain 34 is engaged with the chain wheel 35 of the transfer roller mounted on the transfer roller shaft 36 so as to transfer the drive to the transfer roller 2. A separate feed roller clutch 37 is installed on each feed roller shaft 36. The drive of the opener roller 4 is obtained by the motor 38 of the opener roller and the pulley 39 is mounted on the output shaft of the motor 38.

The pulley 39 drives the drive belt 40 extended according to the spinning machine, and the two-drive belt 40 is in contact with the open-wheel drive pulley 41 mounted on the open-roller shaft 42 by each spinning station, The open-roll roller shaft 42 transmits the drive to the open-roll roller 4 during operation.

In this manner, the spinning rotor 6 is driven by the motor 43 of the spinning rotor in which the pulley 44 is mounted on the output shaft.

The pulley 44 drives the drive belt 45 extended according to the spinning machine, and the drive belt 45 is in contact with the wheel drive pulley 46 mounted on the rotor shaft 47, and the shaft 47 is The drive is transmitted to the spinning rotor 6 during operation. Each spinning station is provided with a device for forming a holding loop and a holding length in the thread holding forming member 48 on which the thread guide bars 49 are fixed.

The thread holding forming member 48 is suppressed so that the thread 7 finds the extension path by the thread guide section 49, as indicated by the dotted line in the drawing, or is shortened as the seal 7 is indicated by the solid line in the drawing. It is possible to retreat to find the furnace.

The disc 50 is attached to the extension 16 of the feed roller, and the surface is marked with equal intervals.

At the time of rotation of the extension 16 of the feed roller, these symbols are detected by the detector 51, which in turn emits a pulse to the pulse counter 52. The counter 52 was in contact with the time delay device 53, which device 53 is operatively connected to the main control circuit 54.

A start button 56 and a stop button 56 are provided in the main control circuit 54, but a program device (not shown in the drawing) is sometimes provided in the electric operation device so as to be controllable in a predetermined order. The open end spinning machine according to the invention is operated as follows. In the radial operation, the sliver 1 is advanced by the transfer roller 2 which interacts with the transfer plate 3 so as to be opened by the retractor 4.

The fibers are conveyed downward from the fiber feed pipe (5) by the air flow in the spinning rotor (6) and the thread (7) twisted by the pair of feed rollers (9), (10) to be wound onto the package (11). It is withdrawn from the spinning rotor 6. The thread retention forming member 48 is in the retracted position, so that the seal 7 finds a short path indicated by the solid line between the doping tube 8 and the thread feed rollers 9 and 10.

When the weaving machine is to be stopped, pressing the stop button 56 causes the main control circuit 54 to automatically stop the operation of the machine in a predetermined order. Initially, the yarn holding member 48 is slowly moved left and right to move the yarn 7 to the extended position indicated by the dotted line between the thread guides 49.

In this position, the projection 57 of the seal retaining member 48 operates to actuate the micro switch 58 to cut off the power to the motor 1. When the motor 13 is decelerated, as a result, the feed roller 2, the feed rollers 9 and 10, and the closed package drive rollers 12 are also decelerated at the same speed. By operating the feed roller clutch 17 and the electromagnetic clutch 25 of the feed roller, the feed roller 2, the feed rollers 9 and 10, and the closed package drive roller 12 are both decelerated simultaneously.

The detector 51 and the pulse counter 52 are operated by cutting off the power supply of the main drive motor 13.

The sign on the disc 50 is converted into pulses by the detector 51, and the frequency of these pulses is the magnitude of the velocity of the supply rollers 9 and 10. The pulse counter 52 is configured to transmit a signal from the main control circuit 54 when the supply rollers 9 and 10 reach a predetermined speed.

A typical example is the region of 500 rpm, but since the normal manufacturing speed is lower than 100 rpm, the pulse counter 52 sends a signal to the control circuit 54, so that the contact of the electronic clutch 25 of the transfer roller is dropped, so that the transfer roller 2 Stops driving. The feed roller 2 momentarily stops rotating, so that the fiber supply to the spinning rotor 6 is stopped.

At this predetermined speed, the pulse coefficient 52 starts acting on the time delay device 53. The device 53 receives the main control circuit 54 after the supply rollers 9 and 10 reach the predetermined speed. To send a signal to

The supply rollers 9 and 10 and the closed package driving roller 12 control the separation of the supply roller clutch 17 and the operation of the brake 21 by a signal transmitted from the time delay device 53. The motor decelerates continuously until the set time starts.

As a result, the extensions 16 and 20 are stopped and discharge of the yarn from the spinning rotor 6 is stopped.

Next, the delay timer of the main control circuit 54 is used to cut off the switch of the motor 38 of the carding roller and the motor 43 of the spinning rotor, so that the carding roller 4 and the spinning circuit The electron 6 can be decelerated so that it can stop.

When the rotation of the supply rollers 9 and 10 is to be stopped, it is most important that the time delay device 53 releases the clutch 17 and at the same time connects the brake 21.

Preferably, when the brake 21 is operated, the speed of the feed rollers 9 and 10 is in the range of 10 rpm, and in no case exceeds 100 rpm. Therefore, it is the brake 21 which can apply a brake to the rotating part of this spinning machine, and this brake 21 is a seal | sticker 7 in the supply rollers 9 and 10 when the extension part 20 can stop. ) Acts on the extension 20 to stop the supply.

Thus, the action of the brakes on rotating mechanical parts effectively reduces the speed.

The operation of the brake 21 is operated by the data, and according to this data, the setting period during which the pulse counter 52 must emit a signal that operates to release the electronic clutch 25 of the feed roller is calculated. This setting time is calculated so that the rotating spindle 6 may twist the end of the yarn.

When the spinning machine stops operating, the end of the yarn is not drawn out of the doping tube at a distance from the fiber collecting surface of the spinning rotor 6, so that the yarn is held at the time of resuming spinning operation. When the member 48 is moved to the retracted position, the ends of the yarns are effectively joined to the fibers fed to the fiber collection surface.

It was recognized that the detector 51 may be provided so that the rotational speed of the spinning machine parts rotated by the motor 13 other than the extension 16 can be detected.

For example, the detector 51 may be installed at a position capable of detecting the speed of the fiber feeder, that is, the type shaft 27, or the speed of the main drive motor 13, and at this time, the speed of the gear 14 is detected. Also good.

The signal can be emitted to the time delay device 53 by detecting a predetermined speed of each element at the time of deceleration of such a component.

Claims (1)

Fiber conveying as it can stop the coop end spinning machine of the type equipped with a fiber feeder, a spinning device forming a combustible thread of fibers fed from the fiber feeder, and a thread feed roller for supplying the yarns formed in the spinning device. Equipped with a device in which the device and the thread feed roller can decelerate at the same time, the control device, the fiber feed device or the thread feed roller can detect the rotational speed and respond to a predetermined speed to stop the fiber feed device. After the detector responds to stop the feed roller and the decelerated thread stops the feed roller, a time delay device is set up to start the braking operation at a predetermined time.The fiber feed device and the thread feed roller start deceleration. After a certain time, the fiber feeder stops, while the thread feed roller continues to decelerate, but the fiber feeder Stop device of a value after the open-end spinning machine, characterized in that able to be stopped at a predetermined stop time.

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