US3521827A

US3521827A - Winding control device for continuous spinning frames and the like

Info

Publication number: US3521827A
Application number: US686985A
Authority: US
Inventors: Jean-Frederic Herubel
Original assignee: N Schlumberger SAS
Current assignee: N Schlumberger SAS
Priority date: 1966-12-09
Filing date: 1967-11-30
Publication date: 1970-07-28
Anticipated expiration: 1987-07-28
Also published as: FR1550066A; DE1710004A1; GB1200218A; CH457214A; BE706874A

Description

Jul 23, 1970 Filed Nov. 30, 195

JEANFREDERIC HERUBEL WINDING CONTROL DEVICE FOR CONTINUOUS SPINNING FRAMES AND THE LIKE 2 Shams-Sheet l 1NVENTOK u y 1970 JEAN FREDERIC HERUBEL 2 WINDING CONTROL DEVICE FOR CONTINUOUS SPINNING FRAMES AND THE LIKE 2 Sheets$heet 1.

Filed NOV. 30. 1967 IN VENTOR FREDE/RIC HERUBEL A JEHN W M hM w' Maw/mp United States Patent 3,521,827 WINDING CONTROL DEVICE FOR CONTINUOUS SPINNING FRAMES AND THE LIKE Jean-Frdric Herubel, Guebwiller, France, assignor to N. Schlumberger & Cie, Guebwiller, Haut-Rhin,

France, societe a responsabilite limitee Filed Nov. 30, 1967, Ser. No. 686,985 Claims priority, application France, Dec. 9, 1966,

Int. Cl. B6sh 54/36 U.S. Cl. 242-264 4 Claims ABSTRACT OF THE DISCLOSURE Winding control means for a continuous spinning frame or the like comprising a driving member capable of being driven with an alternating movement and constituting an element of a first differential and a driven member permanently connected with the ring rail and constituting an element of a second differential, an element common to the two differentials, a further element of the first differential being connected to a ratchet wheel in engagement with a pawl carried by the driving member while a further element of the second differential may be either held fixed or driven to ensure to bring about overwinding or underwinding, while a pivoting element carries a second pawl co-operating with this ratchet wheel and a fixed stop limits the amplitude of pivoting movement of the pivoting element to bring about the fundamental movement.

The invention relates to automatic winding control means in continuous ring spinning frames and the like, for example, continuous twisting frames.

In forming wound bobbins, the ring-carrying rails have imparted to them an up and down movement of constant amplitude permitting the winding of the thread in truncated layers; this movement is called periodic movement. The length of the thread wound during one run of the ring-carrying rails is called a needleful. After each needleful, the ring-carrying rails are displaced upwards relative to their middle position to permit the Staggering of the layers of threads; this movement is called fundamental movement. The combination of these two movements constitutes the actual winding movement of the spinning frame.

In addition, for subsequent unwinding of the bobbins of continuous ring or continuous twisting frames, and more particularly when working on automatic winders, it is necessary, on the one hand, to dispose, on the upper end of the bobbin tube, a few spirals of reserve threads quite distinct from the body of the bobbin to facilitate the work of the automatic piecing means. The formation of these spirals of reserve threads is what is called hereinafter the overwinding phase.

On the other hand, it is advantageous to complete the winding by disposing, on the collar of the spindle which carries the bobbins, a few turns of thread to enable the winding to be carried on, without interruption, on the newly mounted bobbin tube. The formation of these turns will be called hereinafter the underwinding phase.

The invention has, as an object, the provision of means adapted to effect the automatic carrying out of one, at least, of these two phases of overwinding and underwindmg.

For this purpose, according to the invention the winding control device, that is to say, control of the up and down movements of the ring-carrying rails of the frame, comprises, on the one hand, a driving member capable of being operated by an alternating movement and constituting an element of a first differential and, on the other 3,521,327 Patented July 28, 1970 hand, a driven member permanently connected to the rails and constituting an element of a second differential, the two differentials having a common element, a further element of the first differential being connected to a ratchet wheel in engagement with a pawl carried by the driving member while the further element of the second differential may be either held fixed or be driven in one direction to ensure the overwinding, or in the other direction to ensure the underwinding, while an element pivoting coaxially with the ratchet wheel carries a second pawl co-operating with this ratchet wheel and a fixed stop limits the pivoting amplitude of the pivoting element in the direction of ascent of the rails to cause an advance of the driven member in respect of the driving member so as to ensure the fundamental movement, the pivoting element being brought to its initial position by a stop integral with the driving member.

The invention likewise relates to forms of construction comprising one, at least, of the following features:

(a) The driving member, the element integral with the ratchet wheel, and the common element forming, respectively, the satellite carrier and the two sun gears of the first differential, as well as the driven element and the further element of the second differential forming respectively, the two sun gears of the second differential the satellite carrier of which is formed by the aforementioned common element, and the aforementioned pivoting element are all mounted in coaxial rotation.

(b) The first differential comprises an intermediate gear in simultaneous engagement with the planetary gears and with the pinion integral with the ratchet wheel so as to ensure a rotation of the planetary gears and the pinion in the same direction.

(0) Between the further planetary element and the planetary gears of the second differential, there is interposed a reduction gear train which does not modify the direction of rotation.

One embodiment of a winding control mechanism according to the invention for a continuous ring spinning frame will now be described by way of example with reference to the accompanying drawings in which:

FIG. 1 is a profile view of the ring carrying rails in a winding control mechanism according to the invention;

FIG. 2 is a plan view, partly in section, of portions of the winding control mechanism of FIG. 1;

FIG. 3 shows a detail of FIG. 1;

FIG. 4 is a profile view of the winding mechanism with the ring carrier rails in a raised position; and

FIG. 5 shows a frame spindle carrying a finished bobbin.

In FIG. 1 can be seen a part only of a continuous ring spinning frame 1 carried by a rail 2 fixed on the upper end of small pillars 3 mounted to slide vertically in guides 7, 8 of the frame 9.

The ascending and descending movement of the ring carrying rails 2 is effected by a horizontal rod 12 to which is attached one end of a belt 13 which passes over an idler roller 17 with a horizontal axle and the other end of which is attached at 18 to the lower end of the corresponding pillar 3. The rod 12 is mounted so as to be capable of being operatedwith a horizontal toand-fro movement in the frame 9 of the machine, under the action of a winding control means 21.

At 24 is indicated a finished bobbin of thread mounted on a vertical rotating spindle 25 (see also FIG. 5) which is driven in conventional manner by a strap or belt (not shown) passing over a pulley 28 secured to the said, spindle. The winding control device 21 comprises a rotating horizontal shaft 31 (see also FIG. 2) supported by the bearings 32, 33 mounted on two

supports

34, 35 secured to the frame 9 of the machine.

On the shaft 31 are loosely mounted for rotary movement the following parts: a sprocket 41 integral with a pinion 42, a gear 43 integral with a plate 44 which hereinafter will be called, for this reason, the plate wheel, a toothed wheel 45 integral with a pulley 46, a ratchet wheel 48 integral with a pinion 49 and an oscillatory lever 53 held, by a washer 52 and a nut 51, screwed on one screw-threaded end of the shaft 31. A part 47 having three arms, and which will be called hereinafter a star, is fixed to the shaft 31, for example, by keying. There is also shown a ring 54 pinned to the other end of the shaft 31 to hold the assembly of adjacent parts axially on the shaft.

In engagement with the pinion 42 is a gear 61 (see also FIG. 3) integral with a pinion 62 loosely mounted for rotation on an axle 63 fixed in the plate 44 parallel to the shaft 31. The pinion 62 is in engagement with a gear 64 secured to one end of a shaft 65 rotatably mounted in the plate 44, likewise parallel to the shaft 31. On the other end of the shaft 65 is fixed a pinion 66 which is in engagement with the gear 45 loosely mounted on the shaft 31. Planetary pinions or

gears

64 and 66 constitute satellite elements of the second differential.

The plate wheel gear 43 is in engagement with a pinion 7.1 secured to one end of an axle 72 rotatably mounted in an arm of the star 47 and lying parallel to the shaft 31. On the other end of the axle 72 is fixed a gear 73 which is in engagement with a gear 74 loosely mounted on an axle 75 fixed in the star 47 and likewise parallel to the shaft 31. The gear 74 is also in engagement with the central pinion 49. Planetary pinions or

gears

71 and 73 constitute satellite elements of the first difierential.

On one arm of the star 47 is fixed an axle 77 which serves as a pivot for a pawl 78 in engagement with the ratchet wheel 48. The star 47 executes, on the shaft 31, an oscillating movement of an amplitude of the order of 50, such that the pawl 78 always remains above the horizontal plane passing through the axle of the ratchet wheel 48; furthermore the shape of the pawl is such that it has on the left hand side (looking'at FIG. 1) a protuberance forming a head so that the pawl 78 is always urged against the ratchet wheel by the action of gravity.

W th the ratchet wheel 48 there also co-operates, likewise under the action of gravity, a pawl 81 mounted on a pivot 82 carried by the oscillatory lever 53. The direction of inclination of the teeth of the ratchet wheel 48 is that shown on the drawing, that is to say, such that each of the two aforementioned pawls opposes clockwise rotary movement of the ratchet wheel relative to the members which carry the pawls.

In the following, in order to simplify the description, clockwise rotation will be referred to as rotation to the right and rotation in the opposite direction will be referred to as rotation to the left.

Pivoting movement of the oscillatory lever 53 in the direction of rotation to the right is limited by a corner piece of a stop 85 which can be secured by means of a bolt 86, in any desired position of adjustment along a guide 87 which has an arcuate groove 88 concentric with the shaft 31. A scale 89 enables the position of the corner piece of the stop 85 to be conveniently determined. The guide 87 is fixed on a support 91 secured to the frame 9.

Another arm of the star 47 carries a rod 92 parallel to the shaft 31 and adapted to lift the oscillatory lever 53 at a convenient time.

On the sprocket 41 is engaged a chain 95 which also passes over a sprocket 96 on the shaft 97 of an electric brake motor 98.

On the pulley 46 is attached one end of a chain 101 the other end of which is attached to the control rod 12 which effects the up and down movement of the ring carrier rails. The chain 101 passes over a horizontal sheave pulley 102 mounted loose on an axle 103 carried by the frame 9.

On the hub of the star 47 is attached one end of a chain 106 the other end of which is attached, preferably in an adjustable manner by a slide 107, to the vicinity of one end of a lever 108 which can oscillate, about its other end, on a horizontal axle 109 carried by a fixed support 111. The lever 108 carries, at an intermediate point of its length, and an axle .114 on which is mounted a roller 115. The roller is pressed, under the influence of the weight of the movable equipment associated with the ring carrying rails acting through the control mechanism 21, against a cam 116 secured to a shaft -117 rotatably driven by means of an electromagnetic clutch 119 from the general control of the machine, which, to simplify the explanation, has been replaced here by an electric motor 1.18. The cam 116 has a positioning cavity 120 in which the roller .115 is located when the rails are in their down position.

Finally in FIG. 1, there are indicated six

switches

121, 122, 123, 124, 125, 126 controlled by corresponding catches 13.1, 132, 133, 134, 135, 136 carried by a carriage 137 fixed relative to control rod 12 of the up and down movement of the ring carrying rails. These six switches are arranged to effect automatic control of the control device of the rod 12 so as to bring about the correct winding with corresponding overwinding and underwinding.

It will be noticed that the whole of the up and down control mechanism is constituted fundamentally by two differentials. The first differential is constituted by the sun gear 49, the planetary gears or

satellite elements

73 and 71 and the second sun gear 43, the satellite carrier being constituted by the star 47. The second differential is constituted by the sun gear 42, the planetary gears or satellite elements 64 and 66 (the

pinions

61 and 62 being only intermediary) and the second sun gear 45, the satellite carrier being constituted by the plate wheel 43 which is no other than the second sun gear of the first differential. The plate wheel 43 is therefore an element common to the two differentials. The driving member or star 47 is the satellite carrier of the first differential while the driven member or pulley 46 is a sun gear of the second differential.

The operation of the whole of the device is as follows:

When the whole assembly is at rest, the weight of the rails and of the whole movable equipment which is connected therewith exercises, by means of the belt 13 and the rod 12, a traction force on the chain 101. This latter tends therefore to cause the pulley 46 to turn to the left (according to the agreed direction defined above) when one looks at FIGS. 1 and 2. The electric motor 98 being stopped, the chain 95 and the sprocket 41 are kept immobile. The pinion 42 integral with the sprocket 41 is therefore also immobile. The tendency of the pulley 46 to rotate to the left tends to cause the pinion 66 and the gear 64 to turn to the right, and consequently tends to turn the pinion 62 and the gear 61 to the left. Now, since the gear 61 is in engagement with the fixed pinion 42 it can, in trying to roll against pinion 42 only cause its axle 63 and the plate 44 to which it is fixed to rotate around the axle 31 in the direction of rotation to the left.

The pinion 71 in engagement with the plate wheel gear 43 therefore tends to turn to the right. The gear 73, fixed in relation with the pinion 71, therefore also tends to turn to the right. The gear 74 in engagement with the gear 73 therefore tends to turn to the left, and the pinion 49 in engagement with the gear 74 to the right. This results in the ratchet 'wheel 48, integral with the pinion 49, likewise being urged to turn to the right by the star 47. Now, the pawl 78 opposes this movement. This has the result, under the conditions which have just been contemplated, that all the elements carried by the star 47 are locked and form a single body with the latter. Now, the plate wheel 44 has a tendency to turn to the left so that, through its gear 43, it tends to cause the locked pinion 71 to descend and consequently cause the star 47 likewise to pivot to the left which has the effect of tensioning the chain 106.

It can be seen therefore that the whole weight of the equipment which is movable up and down is finally balanced by the tension of the control chain 106.

Under these circumstances, it can be seen that, if the electric motor 118 is started and if the electromagnetic clutch 1119 is engaged, on each turn of the shaft 117 the cam 116 ensures an oscillation movement of the lever 108 and consequently a corresponding to-and-fro move ment of the chain 106, that is to say, the up and down movement of the ring carrier rails or periodic winding movement.

The pinion 71, forming for the moment a solid body with the star 47, drives in rotation the plate wheel 44 and its gear 43, on the shaft 31, in the direction to the right at the same angular speed as the said star. The gear 61 therefore rolls on the pinion 42, now immobile, with the direction of rotation to the right in respect to the plate wheel. The pinion 62 therefore turns to the right, while the gear 64 and the pinion 66 turn to the left. This results in the gear 45 turning on the shaft 31, to the right at a speed a little higher than the angular speed of the plate wheel, but only a little higher, due to the triple reduction ensured by the gear couples 42-61, 62-64 and 66-45.

In the course of the descent the same ratio of angular speeds will be maintained but in the opposite direction, that is to say, the pulley 46 which holds the chain 101 turns to the left at a speed a little greater than that of the plate wheel '44 and its gear 43, and of the star 47 which turns at the same speed as plate wheel 44.

The oscillating lever 53 is driven to the right by means of the pawl 81 and the ratchet wheel 48. A moment comes when, towards the end of the up stroke of the rails, the end of the oscillating lever strikes the stop 85. From this moment the oscillating lever 53 is held immobile in space and is opposed by the ratchet 81 on any continuation of the movement of rotation to the right of the ratchet wheel 48, but the star 47 continues its movement, allowing the pawl 78 to slide on the back of the teeth of the ratchet wheel 48 (FIG. 4). The pinion 49 integral with the ratchet wheel 48 is therefore also held immobile so that the intermediate gear 74 rolls on the pinion 49 turning to the right on the star and causing the gear 73 to turn to the left with respect to the star. This results in that the pinion 71 turns to the left with respect to the star, imparting to the plate wheel 44 and its gear 43 an additional angular speed to the right with respect to that of the star.

The pulley 46 which drives the upward control chain 101 therefore, in respect to the star 47, performs an angular advance corresponding to the number of teeth of the ratchet wheel 48 which have been passed by the pawl 78 of the star while the ratchet wheel has been held immobile by the oscillatory lever 53 stopped by the stop 85.

This advance of the plate wheel, with respect to the star, at each up and down cycle ensures the fundamental movement, the amplitude of which may be easily adjusted by a suitable positioning of the stop 85 along the fixed slide 88.

When the boss of the cam 116 crosses the roller 115, the weight of the movable equipment causes the latter to descend, keeping the chain tightened, at that speed which permits decrease of radius of the cam 116. The chain 106 ascends, the star 47 is rotatably driven (always by the weight of the movable equipment) to the left, the stem 92 comes to strike the lower section of the oscillating lever 53 and from this moment drives the said lever and, consequently by means of the pawl 81, the ratchet wheel 48 in the same direction of rotation to the left.

When the rails have reached their lowest position the control mechanism occupies the position shown in FIG. 1.

In order to ensure that the overwinding and underwinding movement are effected, there is provided, quite simply, an angular unwedging, controlled by the pulley 46 to which is attached the chain 101, with respect to the star 47, the angular position of which is determined by the position of the chain 106. For this purpose, the electric motor 98 is turned in one direction or in the other, respectively, and, by means of the chain 95, brings about a corresponding rotation of the

gears

41, 42, 61, 62, 64 and 66.

Since the plate wheel 44 and its gear 43 are now fixed with respect to the star 47 (at this moment stopped) the rotation of the pinion 66 ensures a corresponding rotation of the gear 45 and consequently of the pulley 46 to which is attached the up and down control chain 101.

A more detailed description of these overwinding and underwinding movements will now be given:

After the bobbin winding phase, that is to say when the ring carrying rails reach the upper position A (FIG. 5) the switch 121 puts the automatic control circuit (not shown) under an electric potential but the movement of the rails is not interrupted.

When the ring carrying rails reach the lower position B, the roller is located in the cavity of the cam 116; the switch 122 interrupts the periodic movement and controls the starting of the motor brake 98 for the winding. The switch 122 controls also the disengaging of the cam 116 by the release of the clutch 119. The control of the winding spindles is not interrupted during the first phase.

The ring carrying rails are brought above the upper level of the stroke, corresponding to the normal winding plate under the action of the motor brake 98 and up to the reserve winding position C (FIG. 5). The switch 123 stops the brake motor and energizes a time relay (not shown) previously regulated to the time required for a predetermined length of overwinding thread. The reserve is formed. The descent of the ring carrying rails is controlled by the time relay which ensures the connection of the brake motor for rotation in the direction to bring about descent of the rails.

In the course of the descent of the rails, the carriage 137 operates the switch 124, which controls the energization of the main motor, to bring about application of rotary drive to the spindles 25.

The catch 135 operates the switch 125 which controls, on the one hand, the braking device (not shown) of the spindles and, on the other hand, a time relay which keeps the braking circuit energized for a determined time.

The catch 136 operates the switch 126 which cuts the current supply to the brake motor 98, immobilising the ring carrying rails in the underwinding position F (FIG. 5).

The regulation of the

catches

134 and 135, as well as the regulation of the time relay of the braking circuit, are such that the spinning frame delivers just the necessary length of thread to constitute the underwinding reserve. This latter may be reduced with precision to the desired length. The same switch 126 short-circuits the automatic control circuit.

After the removal of the full bobbins and the loading of the empty tubes, the winding cycle is started up again automatically after operating the start button.

It is possible to regulate the machine so that it carries out either only overwinding or only underwinding as the case may be.

The invention is of course not limited to the embodiment described and shown, which has been given by way of example.

Thus, for example, the driving member (here the star 47), the fundamental movement backing-up member (here the gear 48) and the member (here the sun gear 43) of the first differential common to the second differential could be constituted by elements other than a sun gear, the satellite carrier and the other sun gear of this first differential, respectively.

Likewise, the driven member (here the pulley 46) the mobile backing-up member (here the pinion 42) used to ensure the overwinding and the underwinding and the member (here the satellite carrier 44) of the second differential common to the first differential could be constituted by elements other than a sun gear, the other sun wheel and the satellite carrier of this second differential, respectively.

What I claim is:

1. A winding control device for controlling up and down movement of the ring-carrying rails of a continuous ring spinning frame or the like, such as a continuous twisting frame: said device comprising, in combination, a first and a second differential, both differentials having at least three elements, including one element common to both; said first differential having a driving member as one of its elements; and the three elements thereof including a first sun gear, two satellite elements and a scond sun gear; said second differential having a driven member as one of its elements; and the three elements thereof including a first sun gear, two satellite elements and said driven member; said driving member being mounted for oscillation; said driven member being connected to the rails, and a further element of said second differential being arranged selectively to be held fixed, to be driven in one direction to effect overwinding, or to be driven in the other direction to effect underwinding; a ratchet wheel connected to a further element of said first differential; a first pawl carried by said driving member and engaged with said ratchet wheel; a pivoted element coaxial with said ratchet wheel; a second pawl carried by said pivoted element and cooperating with said ratchet wheel; a fixed stop limiting the amplitude of pivotal movement of said pivoted element in the upward direction of movement of the rails to effect an advance of said driven member with respect to said driving member so as to effect the fundamental movement of said pivoted element; and a second stop fixed to said driving member and engaged with said pivoted element to return said pivoted element to its initial position.

2. A device, as claimed in claim 1, wherein said driving member of said first differential and said element common to both differentials constitute satellite carriers, each carrying said satellite elements of the respective differential; one of the two satellite elements of the first differential being operatively connected to said further element of the first differential and the other being in mesh with said common element; one of the two satellite elements of the second differential being operatively connected to said further element of the second differential and the other being in mesh with said driven member.

3. A device, as claimed in claim 2, wherein the first differential includes an intermediate gear engaged with said further element of the first differential and a satellite element of said first differential, to insure rotation of said last named satellite element and said further element of said first differential in the same direction.

4. A device, as claimed in claim 3, further including a reduction gearing interposed between said further element and a satellite element of said second differential, and constructed and arranged so as not to modify the direction of rotation.

References Cited UNITED STATES PATENTS 2,675,972 4/1954 Goodwin et a1 -..l 242-26.42 3,072,350 1/ 1963 Anderson et a1 24226.1 3,325,109 6/1967 Pray et al 24226.1

FOREIGN PATENTS 907,155 2/ 1954 Germany.

STANLEY N. GILREATH, Primary Examiner W. H. SCHROEDER, Assistant Examiner US. Cl. X.R. 5799