US2016190A - Spinning or twisting machine - Google Patents

Description

Y R T U 0 B P SPINNING OR TWISTING MACHINE Filed April 25, 1933 2 Sheets-Sheet l Inverztor: I Pierre Boutzy,

P. BOUTRY ZNGJQO SPINNING OR TWISTING MACHINE Filed April 25, 1955 2 Sheets SI et 2 Pierre B6 r Irwemr:

Patented Oct. 1, 1935 UNITED STATES PATENT OFFICE Socit Anonyme dite Filatures Boutry- Droulers, Fives-Lille, France Application April 25,

1933, Serial No. 667,888

In Germany May 7, 1932 3 Claims.

Two kinds of spinning or twisting machines are generally distinguished, namely, the continuous machines in which twisting and winding of the yarn take place simultaneously, and the mules 5 in which twisting and winding follow each other.

The object of the present invention is so to transform existing mules that they may be utilized in continuous spinning, and consists in adjustably attaching the framework of the modified mule, to provide said framework with ring rails and to impart to said rails an upwards and downwards movement.

The modified spinning mule preferably comprises one or more of the following features:

(1) the yarn leaving the delivery rollers is wound upon the spindle by means of a traveller, either after some turns thereof have been wound upon the end of the spindle, or after passing through a thread guide.

(2) the plane inwhich are located the axes of the last pair of delivery rollers is substantially perpendicular to the direction of the yarn leaving the said rollers.

(3) the path of the traveller is centered with respect to the corresponding spindle, for instance by the displacement of the ring carriers on the rails.

(4) the friction connection used in the spinning mule prior to its transformation for backing off, is employed for braking the modified machine.

(5) a tension'device, advantageously located above the rim pulley enables changing of the same.

(6) the drawing rollers are stopped a little before the machine in order to strengthen the yarn and facilitate restarting.

An embodiment of the invention is diagrammatically illustrated in the accompanying drawings, but solely by way of example.

Figure 1 illustrates the side view of a spinning mule changed to continuous spinning frame according to the invention.

Figure 2 illustrates the gearing of the building motion.

Figure 3 illustrates the fastening of the rings on the ring rail.

Figure 4 illustrates the tension device in a view takenat right angles to Figure 1.

Figure 5 shows the stopping mechanism of the drawing rollers.

The carriage or framework I from which the rolls have been removed rests on feet 2 and is adjustably attached on the said feet at a selected point along the rails or slips 46, according to the counts of the yarn to be spun.

The set of drawing rollers 3 is inclined substantially in the direction of the yarn.

The drive of the tin roller 8 is simplified the carriage I being now fixed. It is no longer necessary to provide an intermediate drive. The tension device 2 I, remains however necessary to permit changing of the rim pulley. To save space the tension device 2| is arranged above the pulley.

The spindles 4 are provided as usual with a foot step 5 and a bolster 6. The rotation of the spindles is effected by a cord which is passed round the warve I belonging to each spindle and round the tin roller 8. The tin roller 8 receives its drive from the rim pulley 9. The latter is keyed upon the main driving shaft.

The winding of the yarn upon the spindles 4 can no longer be effected as on the usual spinning mules because the carriage I is stationary. On the contrary winding is effected as in the continuous spinning machines. Should warp yarn be spun, a thread guide 44 is moved towards a so that the yarn is guided above the spindle and in the extension thereof as is the usual practice, for instance, in continuous spinning frames.

Should weft yarn be spun, the thread guide 44 is moved to b in such a way that the yarn is directly led to the spindle point and subsequently winds upon the spindle by means of a traveller;

as is also the practice in a special embodiment of the continuous spinning frames.

In both cases the yarn runs to a traveller, not specially shown here, carried upon a ring l0 secured upon a ring rail II, and is then wound upon the spindle.

The rings ID are secured upon the ring rails l l by the aid of the ring holders 52 (Figure 3). The ring holders l2 are provided with ears l3 in the form of flat hooks and secured by these ears to the ring rail II by screws l4. Owing to this arrangement the ring H] can be exactly centered relatively to the spindle 4, the ears l3 of the ring holders I2 being secured or clamped in the desired position by the screws Hi.

The ring rails II must be moved up and down relatively to the spindles 4. This movement is imparted to the ring rails in the following manner. The main shaft driving the drawing rollers 3 through spur and bevel pinions not shown, should effect the up and down movement of the ring rails through a train of gearing of which only the last two bevel wheels I5, l6 (Figure 2) are shown. On the stud of the wheel I6 is keyed a cam of suitable shape. A roll I8 is held against the rim of this cam IT. The roll I8 is on a lever 19 rocking at 20 and held upwards by the weight of the ring rails ll. Lever i9 carries at its free end a shaft 22l On said shaft 22 a worm wheel 23 is keyed, with which meshes a worm 24. Fixed on the shaft of the worm 24 is a ratchet wheel 25 rotatable by a pawl 25. On the other hand a roll 2'! is keyed on the shaft 22. To this roll is secured one end of a' chain 28. The chain 28 is secured by its other end to a second roll 29 with fixed shaft.

On the shaft of the last mentioned roll is set a roll 36, to which is'secured a chain 3|. Said chain 35 is passed round a roll 32, which rests on a rod 33 which can only be moved along its axis. The other end of the chain 31 is secured to a roll 34 with fixed shaft. To the rod 33 is secured one end of a chain 35. The other end of this chain 35 is attached to the lower end of a poker rod 35 supporting the ring rail ll. Now it will be obvious that during the rotation of the main shaft 45 and the reciprocating motion of the lever it caused by the cam ll, the poker rod 36 and with it the ring rail I I will be moved alternately up and down. Each swinging motion of the lever I 9 results in sliding of the part 41 carrying the pawl 25. The part 4'! held by the fixed shaft 48, takes an inclined position and thereby through the pawl 26 causes the ratchet Wheel 25 49 on the roll 34 enables the ring rails to be returned to their lowest position, the ratchet wheel being brought back to its starting, point, to prepare for the start of the next lifting movement of the ring rails.

The stopping of the spindles 4 and of the drawing rollers 3 must take place rapidly in order to reduce as far as possible the time lost in slowing down. Should such result not be attained, the travellers being very light are liable to release the yarns from tension and to allow the formation of snarls therein, which make it more difii cult to restart the machine. By braking the machine, the travellers will at all times keep under tension the yarn thus preventing the formation of snarls. The braking of the spindles is advantageously performed by means of the friction clutch shown at 31 and 38, said clutch being used I in mules for backing off and becoming of no use here since the latter is dispensed with. The said clutch is used as braking device as follows:

(a) The male part 31 of the clutch is prevented from rotating by a pin 43 and can only slide along its shaft. 7

(b) A pedal 39 on a crank lever 40 enables a lever 4| to be oscillated, so acting on the grooved collar 42 keyed to the shaft of the clutch part 31.

If the pedal 39 is depressed the male part 31, of the clutch is pressed against the female part marked 38 and mounted upon the main shaft 45,

, thus braking the rotary motion of the shaft 45 and therefore also the rotation of the spindles 4.

Furthermore, the drawing rollers 3 can be advantageously stopped before the other parts of the machine, in order to increase the twist of the length of yarn whichremains tensionless between the drawing rollers 3 and the spindles 4 and to increase in that way their strength thus facilitating doffing of the bobbins carried by the spindles 4 and restarting the frame. Such a result may be attained in any way such for instance as shown in Figure 5.

The pinion 50 driven by the main shaft 45, is carried loose by the shaft 5| of the drawing rollers 3 and may engage a catchbox 52 mounted on said shaft. Said catchbox 52 is operated by a lever 53 at the free end of which is secured a spring 54. A stop 55 integral with the plate 31 comes to the highest position (Figure 5), in order to maintain the lever 53 in the right position to engage the members 50 and 52. In the braking operation the plate 31 is pushed towards the left, the stop'55 draws back and the lever 53 under the action of the spring 54 disengages the catchbox 52 from pinion 50, the drawing rollers 3, thus being no longer driven, soon stop while the spindles 4 continue a slight rotation until their being braked.

It is understood that the present invention is not limited to the above disclosed embodiment. The invention applies as Well to spinning as to twisting frames, whatever kind of raw material (cotton, wool, etc.) be used.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed I declare that what I claim is:

1. A continuous spinning machine, comprising an adjustable frame, spindles on said frame, means for rotating said spindles, ring rails on said spindles, drawing rollers for feeding threads to said spindles, means for moving the ring rails step by step upwardly during the spinning process to Wind the bobbins which are on the spindles evenly and uniformly, and a clutch on said spinner for starting and stopping the drawing rollers, the said clutch being adapted to stop the 4 drawing rollers slightly before the spindles in order to increase the torsion of the threads.

2. A continuous spinning machine, comprising an adjustable frame, spindles on said frame, means for rotating said spindles, ring rails on said spindles, drawing rollers for feeding threads to said spindles, means for moving the ring rails step by step upwardly during the'spinning process to wind the bobbins which are on the spindles evenly and uniformly, and a thread guide adjustably disposed between the drawing rollers and spindles in such manner that it maybe brought into position for guiding the thread when warp yarn is being spun, and'may be moved into an inoperative position, out of contact with the 55 thread, during the spinning of weft yarn;

3. Spinning machine for the continuous production of yarn of the mule type and of the continuous type comprising mule frames, mule drawing rollers, a mule carriage, mule spindles, means for adjustably fixing the position of the said carriages relative to the said drawing rollers, means for imparting a continuous rotary movement to the spindles, said movement being constantly in the same direction, rings arranged around the said spindles, runners mounted on the said rings, bars for supporting the said rings, and means for imparting a reciprocatory movement to said bars.

PIERRE BOUTRY.

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