JPS594048Y2 - Lifting device for ring rail in spinning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic lifting device for a ring rail of a ring spinning machine or a ring twisting machine.

As is well known, the purpose of this device is to automatically lower the ring rail just before the machine stops when the machine is full and wind the thread to the bottom of the full bobbin, and to lower the ring rail when the machine starts operating. The purpose is to swing the rail up and down and wind the thread around the bare bobbin.

Conventionally, in this type of device, there is a means to remove the feed claw of the saver wheel by an external force such as an electromagnet, or a clutch or the like to separate the saver wheel and the saver shaft, and a clutch is also installed on the drive source side for raising and lowering the ring rail. Alternatively, a friction plate or the like was required.

However, such means for releasing conduction not only requires a complicated mechanism, but also has the disadvantage of causing malfunctions and burnout of the electromagnet.

The present invention attempts to achieve this objective by a simple mechanism without using any means for opening these conductions.

Next, the present invention will be specifically explained with reference to embodiments shown in the drawings.

Reference numeral 1 designates a well-known edge lever, which moves up and down using a heart cam 3 and a cam bowl 4 with a shaft 2 as a fulcrum.

On the other hand, a chino (or tape) 6 whose one end is fixed to the drum 5 is fixed at the other end to the drum 8 via a pulley 7, and the drum 8 is moved by the up and down movement of the lifter lever 1.
performs reciprocating rotation.

As a result, a chino (or tape) 10, one end of which is fixed to a drum 9 that is concentric with the drum 8 and is integral with the drum 8, raises and lowers a ring rail (not shown) within a predetermined range.

Arrow A is the upward direction of the ring rail, and arrow B is the downward direction.

The above is well known. On the other hand, 11.12, 13.1
3 is a bevel gear constituting the differential gear device A, and the revolving shaft 14 of the planetary gear 13.13 is fitted into the drum 5,
A worm wheel 15 is attached to the gear 11, and a worm 16 that meshes with the worm wheel 15 is fitted onto a saver shaft 17.

18, 19, and 20 are known saver foils, feed pawls, and reverse prevention pawls, respectively.

A worm wheel 21 is attached to the gear 12 via a one-way clutch 25 and meshes with a worm 24 fitted onto a shaft 23 of a motor 22.

The one-way clutch 25 engages with the worm wheel 21 in the direction of arrow C from the gear 12 side.

Further, the advance angle of the worm 24 is sufficiently small so that the worm 24 is not rotated from the worm wheel 21 side.

Next, the operation will be explained.

Since the direction in which the drum 5 attempts to release the chain (or tape) 6 is the direction in which the one-way clutch 25 engages,
The gear 12 is not rotated by the weight of the ring rail.

On the other hand, the gear 11 is also prevented from being rotated by the weight of the ring rail due to the anti-reverse claw 20.

In this way, the ring rail will not fall under its own weight.

During normal operation of the spinning machine, the heart cam 3 is driven from the spinning machine side.
As a result, the lifter lever 1 moves up and down using the shaft 2 as a fulcrum, and the ring rail moves up and down with a predetermined amplitude.

Saver foil 1 is removed for each vertical movement of lifter par 1.
8 is a known method in which the saver shaft 17 is rotated by a predetermined angle in the direction of the arrow by the feed pawl 19 and the reverse prevention pawl 20.

This rotation is transmitted to the worm wheel 15 by the worm 16, and the gear 11. The revolution shafts 14 rotate in the directions of arrows E, and the drum 5 winds up the chain (or tape) 6 against the weight of the ring rail.

In this way, the ring rails are raised one after another.

Ring rail lowering signal (not shown) when the spinning machine is full, etc.
The motor 22 is activated to rotate the worm wheel 21 in the direction of arrow C.

As a result, the ring rail falls while being controlled by the rotational speed of the worm wheel 21.

At this time, since the gear 11 is not rotated by the anti-reverse claw 20, the descending speed of the ring rail is controlled only by the rotation of the worm wheel 21.

When the ring rail descends to the winding start position, the drum 5 is stopped by a stopper or the like (not shown) fixed to the lifter puller 1, and the one-way clutch 25 idles, so the timing of stopping the motor 22 requires precision. do not.

On the other hand, when raising the ring rail, the motor 22 rotates the worm wheel 21 in the direction opposite to the arrow C.

Note that regardless of the rotational direction of the worm wheel 21, the saver wheel 18 is always about to be rotated in the direction of meshing with the anti-reverse claw 20 due to the weight of the ring rail, so the gear 11 is restrained.

Therefore, the rotation of the worm wheel 21 is transmitted to the gear 12.13 and the revolving shaft 14 through the one-way clutch 25, the drum 5 rotates in the direction of arrow E, and the chino (or tape) 6
Wind it up and raise the ring rail.

By stopping or reversing the motor 22 while the ring rail is rising, the ring rail can be stopped or lowered.

Rocking the ring rail at the start of the spinning machine is obtained in this way.

The amplitude of this oscillation is determined by electrically detecting the rotation angle of the drums 5, 8, etc., or by controlling the motor 22 with a signal from a timer (not shown) or the like.

Further, the number of swings is determined by a signal from a timer (not shown), a counter (not shown), or the like.

A known method may be used to control the motor 22 using these electrical signals.

Incidentally, at the end of the swinging movement, the ring rail may be lowered to the winding start position using the above-described lowering method.

In addition, when manually raising and lowering the ring rail, the one-way clutch 25 is always engaged due to the weight of the ring rail, so the gear 12 is restrained, and the handle (not shown) is inserted into the saver shaft. By removing the pawl 19 and anti-reverse pawl 20 and rotating the handle in any direction, the worm 16, worm wheel 15, and gear 11 can be removed.
．． The drum 5 rotates in the order of the shaft 13 and the shaft 14, and the ring rail moves up and down.

In the present embodiment, the entire device is mounted on the lift cutter parr 1, but the cam bowl 4 and pulley 7 may be left on the lift cutter parr 1, and the others may be attached to the machine base or the like.

The present invention is as described above, and unlike conventional devices, the claws do not have an operating mechanism using external force such as an electromagnet for sushi, a clutch, or a friction clutch mechanism, so the mechanism is simple and stable, without operation errors or coil burnout. I made it possible.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of this embodiment, and FIG. 2 is a developed view of the main parts. 1... Lifting Dale Parr, 4... Heart Cam, 5... Cheno Winding Red Drum, 18...
... Saver wheel, 22 ... Motor, A ... Differential gear device.

Claims (1)

[Scope of utility model registration request] By the rotation of the heart cam, the lift winder is swung, the saver foil is sent by the feed pawl, and the means for winding up the chenos, etc. wound around the drum, and the drum is rotated from another drive source to wind up the chenos, etc. In a ring rail automatic lifting device for a spinning machine etc. that has a means for unwinding,
The rotation of the saver wheel and the rotation of the drive source are input independently to the differential gear device, and the output is the rotation of the drum, and from the drum side, at least the direction in which it is intended to rotate due to the weight of the ring rail is input. By preventing each human power axis from rotating, the surface input is
A ring rail elevating device for a spinning machine, characterized in that the drum can be independently rotated without mechanically separating other inputs from each other.