US3150480A

US3150480A - Spinning apparatus

Info

Publication number: US3150480A
Application number: US262000A
Authority: US
Inventors: Ortmans Emile
Original assignee: Individual
Current assignee: Individual
Priority date: 1962-03-06
Filing date: 1963-03-01
Publication date: 1964-09-29
Anticipated expiration: 1981-09-29
Also published as: NL289537A; DE1881072U; BE614756A

Description

P 1964 E. oRTMANs 3,150,480

SPINNING APPARATUS Filed March 1, 1963 3 Sheets-Sheet 1 FIG.1

SPINDLE SPEED 1 L POSITIONS INYENT'OR:

[/v/ LE ORTM/VVS JmM- AWRNE Y p 9, 1964 E. ORTMANS 3,150,480-

SPINNING APPARATUS Filed March 1, 1963 3 Sheets-Sheet 2 INVENTOR- fmmg ORTMHNS P 1964 E. ORTMANS 3,150,480

SPINNING APPARATUS Filed March 1, 1963 3 Sheets-Sheet 3 IvvE'NraR f'pqmi Gem/9N United States Patent Oh ice 3,150,480 SPlNNlNG APPARATUS Emile @rtrnans, 52 Rue de Liege, Verviers, Belgium Filed Mar. 1, 1963, Ser. No. 262,5)09 Claims priority, application Belgium, Mar. 6,1 62,

In the textile industry frames are already known which spin and produce cops on bobbins simultaneously which, in principle, include a feeding system supplying the material to be spun in the form of slivers, a cone for forming the cop which rotates at a constant speed to give the twist to make the yarn, a member which is concentrically disposed to the cone and turns with the same speed thereof and has at the same time a reciprocating movement, a spindle carrying the bobbin, the spindle having a rotational speed differing as to that of the cone to cause the winding of the yarn onto the spindle while the member moving up and down causes the yarn to twist from bottom to top and from top to bottom on the head of the bobbin located in the formation cone.

In the known frames for spinning and producing cops, the rotational speed of the spindle carrying the bobbin is constant. Also the formation cone, the member moving up and down and the spindle carrying the bobbin are driven by means which do not allow any slipping like that as caused by gears or possibly by a chain.

The known frames for spinning and producing cops have several disadvantages.

The increase in the twist in the yarn is obtained by increasing the speed of the spindle and the decrease of the twist is obtained by slowing the speed of the spindle, that is, in decreasing or increasing respectively the speed of winding the yarn, which for a given speed of the formation cones causes a decrease or an increase of the speed of the feed system. Furthermore when the frame is set in motion, the speed of the feed system is jerking to such an extent that before it is running smoothly, it often causes yarn breakages by over or under tension which results in loss of time and material. It can also occur that the speed chosen for the spindle produces a synchronism in the winding of the yarn on the bobbin which will cause an exact juxtaposition of the layers of yarn, one on the other, and thereby produce a cop having no rigidity and which will eventually crumble and be difficult to handle. Actually one tries to suppress this fault as soon as it is noticed by slightly modifying, by degrees, the speed of feed.

During the formation of the cop on the bobbin, the differences in the speed of the winding of the yarn produced by the winding from a small to a large diameter and vice versa are corrected by causing the speed of the entry of the yarn into the formation cones to vary correspond ingly, which is actually brought about by a correcting balance lever over which the yarn passes and which is located between the feed system and the cone. However, this balance lever limits the speed of the feed and, in view of the difiiculty encountered in moving it rapidly, it continuously modifies the length of the yarn being twisted and thereby prevents the rational utilization of the draw rollers.

The present invention, which proposes to eliminate the disadvantages of known frames for spinning and producing cops on bobbins, consists in making interdependent,

the controls of each of the groups of parts whose respective movements, indispensable for making the yarn and winding it into cops, are thus constantly co-ordinated in such a way that a modification of one of these movements reacts on the others which are thus automatically modified in a corresponding manner.

3,159,480 Patented Sept. 29., 1964 In other words, according to the present method the control of the parts forming one group is caused-to act on the control of the parts forming another group in order to maintain a continuous reciprocal co-ordination of their respective movements.

Accordingly, an essential characteristic of the application of the above method to a frame for spinning and pro ducing cops on bobbins is that the main control shaft drives at given speeds the driving shaft for the cones and the primary shaft of a first differential and at different speeds, obtained by changes in the gearing, the planet wheel carrier of the said first differential and the primary shaft of a second difierential which has a planet wheel carrier mounted on the output shaft which drives the spindles and which in turn is controlled by a cam mounted on the output shaft of the first differential which simultaneously reciprocates the member of the feed system.

ther characteristics will become apparent in the following description of the attached drawings which show, by way of example only, an embodiment of the invention.

In these drawings:

FIG. 1 is a schematic front view, partly in elevation, and partly in section, showing the first differential to control the feed of the formation cones and the reciprocating members and the second differential to control the spindles.

FIG. 2 is a diagram showing the variation of the speed of the spindles according to the position of the reciprocating members.

FIG. 3 is a schematic view in elevation of the head of a bobbin in a formation cone shown in section.

FIG. 4 is a schematic View partially in side elevation to show the control of the formation cone and of the reciprocating member.

FIG. 5 is a schematic view partially in side elevation to show the control of the spindles.

FIG. 6 is a partial schematic view of the movement control of the traversing member.

FIG. 7 is a partial view in plan of the arm bearing the fingers activating the traversing members.

FIG. 8 is a partial schematic view of the conventional cop-forming mechanism.

The figures show only the parts necessary to understand the invention and for clarity certain parts have been omitted as in the FIGS. 4 and 5.

Referring now to the figures, it will be seen that the strands 2b of the web of textile fibres pass from the feed roller 2 to the delivery rollers 3 from where they are guided towards the rotating formation cones 4 ending in the sleeves 4-0 on whose upper end the gears 5 are mounted. These gears engage the pinion 6 which is carried by the control shaft t t: which is driven by the shaft '7 from the bevel gears 7a. The shaft 7 which forms the main control shaft of the frame is driven by the grooved pulley 8a which in turn is driven by the transmission belt 8 passing over the grooved pulley 9a: mounted on the shaft 9 driven by the motor ll.

This shaft 7 carries on its other end the pinion 1%) driving the pinion 11, which drives the pinion 12 mounted on the primary shaft 13 of the first differential. This first difierential consists of a primary pinion 14 which drives the part 15a of a planetary wheel having a part 1511 driving a secondary output pinion 16 mounted on an output shaft 17. A pinion 18 is located on this shaft 17 and meshes with the pinion 19 which drives the pinion 29 mounted on the shaft 21. The shaft 21 carries the pinion 21a which drives the pinion 2a of the feed roller 2, and the pinion 3a of the delivery rollers 3 by a flexible transmission means 21b. Two

cams

22 and 23 are also mounted on the shaft 21. The first of the cams 22 serves as a track for the follower 24 carried by the lever 25 pivoted at a in relation to the frame. To lever 25 is articulated a connecting rod 26 which is articulated in the opening 271: of the pivoting toothed sector 27. When cam 22 pushes the lever in the direction of arrow X, sector 27, pivoting around 27a clockwise, entrains, by means of its teeth 27c, sector 28 which pivots around 28a in a counterclockwise direction. This pivoting urges the teeth 231), which engage with rack 29, to slide arm 29a upward. This arm 2% supports a series of fingers, each of which fits in a groove in the reciprocating members 31. These members 31 are thus moved upwardly as they slide over the sleeves 4a. As a result of this movement, the thread which was wound on the large diameter d of the end of the cocoon is gradually induced to wind on an ever smaller diameter until it reaches the diameter d1. As soon as these members have reached the end of their upward stroke, cam 22 returns lever 25 in the direction opposite to X and all the other parts act in the opposite way as heretofore mentioned, so that the members 31 are returned downwardly and the thread gradually returns to wind on the large diameter of the end of the cop. As a result of these necessary movements of the members 31, the spindles have to rotate at variable speeds. This is achieved by a second differential. With this in mind, the drive shaft 7 supports the pinion 10 which engages with the pinion 11 mounted on the shaft 32 mounting the pinion 33 which in turn drives the pinion 34 which engages with the pinion 37 mounted on the shaft 33 bearing the primary pinion 39 which engages with the pinion 40a which drives 4% engaging the pinion 41, which drives shaft 42 which, by pinions 49 and 5t), drives the spindles 48.

A pinion 4C: is fixed on the primary shaft 33 of the second differential and drives the

pinions

44, 45 and the pinion 46 fixed on the bushing 47a of the planet wheel carrier 47 of the first differential (FIG. 1). The

parts

40a, 40b forming the planet wheel gear of the second differential are mounted on the planet wheel carrier 51 which has a sleeve 52 coaxial to the shaft 4-2 around which it can oscillate due to the ball bearings 53. This sleeve 52 has an arm 54 (FIG. 5) at the end of which is articulated an arm 55 which is articulated at its upper end in a slot 56 provided in the lever 57 pivoted at 58 on the frame and carrying the follower 59 rolling on the cam 23 fixed to the shaft 21 which is driven by the output shaft of the first differential and thus driving as explained above the feed system for the reciprocating member.

A continuous co-ordination is established by the assembly which has just been described between the control shaft 6a of the formation cones 4, the control shaft 21 of the members 31 and the feed system 2 and the control shaft 42 of the spindles 48. If it is desired to increase the twist of the yarn, the

driving pinions

33 and 37 on the shaft 33 can be exchanged so as to cause shaft 38 to turn more quickly and consequently cause the

pinions

44, 45 and 46 and the planet wheel carrier 47 to turn more quickly. In this differential if the planet wheel carrier advances in the sense of the pinion of entry, a slowing down or even a stoppage of the output pinion is produced, and therefore, as the planet wheel carrier 47 turns faster, the output shaft 17 turns more slowly and the shaft 21 also turns more slowly so that the reciprocating member 31 and the feed system 2 are driven at a reduced speed.

When the yarn winds from the large diameter d of the cop to the small diameter d1 (FIG. 3), the members 31 should move upwardly and the cam 22 should be regulated to urge the lever 25 downwardly (FIG. 4), because the winding has to be maintained constant and therefore the rotational speed of the spindles 48 must decrease.

This is brought about automatically by the second differential whose planet wheel carrier 51 turns slightly in the sense of the pinion 39 and of the shaft 3, which results from the action of cam 23 on the follower 59 of the pivoted arm 57 driving the arm 55 joined to the arm 54 of the sleeve 52 provided with the planet wheel carrier 51. The operations take place in reverse when the yarn passes from the diameter d1 to the diameter d.

In the event that a cop with an outside diameter D (FIG. 3) is to be obtained, the members 31 must execute a greater displacement, corresponding to L which is the height of the end of the cocoon to be obtained, as compared to the displacement I when a diameter d is to be obtained, and the strand will have to be wound from diameter D to diameter di and vice versa. To extend the stroke of these members, the articulation of connecting rod 26 to the sector 27 is moved closer to the pivot point 27a. Inasmuch as the difference in the diameters of the end of the cocoon is increased, it will also be understood that the variations in speed of spindles 48 must be greater, so that the variations in speed of shaft 42 must be greater, which is accomplished by moving the arm 55 in the slot. 56 of lever 57 away from the pivot point 53.

The variations of the speeds of the spindles according to the reciprocating members are shown in FIG. 2 in which the speeds are in ordinate and the positions in abscissa. The curve A corresponds to the bobbin having an exterior diameter d and the curve B to that having a diameter D.

Apart from the foregoing, however, the formation of the cop on the bobbin is quite conventional. The strands 2b of the sheet of textile fibers, which come from the feed roller 2, pass to the delivery rollers 3 whence they pass into the inside of sleeves 4:: that terminate in the cones d. A slot. 4-1) is provided through cone 4 along a generatrix of the cone. Cone 4, by its rotation, twists the strand 2b and transforms it into a thread which passes through opening 31b and thence over rim 31a. The strand is secured at one end to bobbin head 48a which in turn slides axially on spindle 48 and rotates with spindle 48. The thread is thereafter twisted and wound on the cop holder in successive superposed layers in such a way as to form a cop whose end is conical, the winding being done back and forth between the large and the small diameter of the cop by the reciprocatory movement of member 31. The rotating cones 4 thus remain at a fixed level and do not reciprocate axially; and pinions 5 are thus carried by sleeves 4a and engage with pinion 6 mounted on shaft 7a rotating under the influence of pulley 8a which in turn is mounted on shaft 7, and so on back through the drive train including belt 8, shaft 9 and motor 1.

Therefore, cone 4 serves to twist the strand and transform it into thread, while spindle 48, rotating at a different speed from cone 4, winds the thread into a cop. Upon such winding, the cop grows in axial extent because it is formed of superposed layers of wound thread. These layers build up between the cop holder and the inner face of the cone, and automatically effect the axial displacement of the cop and the cop holder along the spindle, moving the cop holder away from the hollow cone as the cop extends. In FIGS. 1, 4, 5 and 8, this would be observed as a progressively downward movement of member 4301. In effect, therefore, the conical upper end of the cop remains at the same axial location relative to cone 4, the growth of the cop being accommodated by movement of the building cop away from the formation cone.

What I claim is:

1. Apparatus for spinning and winding filamentary material into cops, comprising means for feeding strands to the apparatus, a cone for forming a cop, drive means for rotating the cone at a constant speed to twist the strands, a member concentric with the cone, means mounting said member for rotation with and for axial reciprocatory movement relative to the cone, 2. spindle for carrying the cop, means for rotating the spindle at a speed different from that of the cone to cause the thread to be wound into a cop, first differential means for driving the feed means at varying speeds and for reciprocating said member, second differential means for driving the spindle at varying speeds, and drive means common to said first and second differential rheans and to said cone drive means.

2. Apparatus as claimed in claim 1, said first and second differential means being so interconnected as to drive said feeding means and said spindle at speeds Whose ratio to each other varies.

3. Apparatus as claimed in claim 1, said first and second differential means comprising planetary gearing.

4. Apparatus as claimed in claim 1, said last-named drive means comprising a main drive shaft, a shaft driven by said main drive shaft and driving said cone and said first and second differential means, said second differential means having planetary gearing including a planet wheel carrier and an output shaft on which said planet wheel carrier is mounted, said output shaft driving said spindle, said first differential means having an output shaft, and a cam driven by the output shaft of said first diiferential means and drivably interconnected with said planet wheel carrier to control the position of said planet Wheel carrier.

5. Apparatus as claimed in claim 4, and a further cam driven by said output shaft of said first ditferential means, a follower traveling on the profile of said furtherTain an arm carrying said follower, a crank arm articulated to said arm, a first toothed sector articulated to said crank arm, a second toothed sector sWingably driven by said first sector, a rack meshing with said second sector, an arm carried by said rack, and a rod on said arm for reciprocating said member.

6. Apparatus as claimed in claim 4, and a follower traveling on the profile of said cam, a lever carrying said follower, a rod pivotally articulated to said lever, and an arm connected to said rod, said arm being in unitary assembly with the planet Wheel carrier of the second difierential means which thus is given an oscillatory movement.

7. Apparatus as claimed in claim 4, and a further cam driven by said output shaft of said first differential means to reciprocate said member.

8. Apparatus as claimed in claim 7, said further cam being so disposed that on movement of said member in one direction, the planet Wheel carrier of the second differential means turns in the sense implied by the ratio of the pinions on said second differential means to ternporarily slow down the speed of rotation of the output shaft of said first differential means and on movement in the opposite direction the planet wheel carrier of the second differential turns in the opposite sense to temporarily increase the speed of rotation of the output shaft which controls the spindles.

9. Apparatus as claimed in claim 5, said first toothed sector having a slot, and means for selectively adjustably fixing said crank arm at any of a plurality of desired positions along the length of said slot thereby to alter the magnitude of the movements of said member.

10. Apparatus as claimed in claim 6, said lever carrying the follower on the second cam having a slot therein, and means for adjustably fixing said rod in any of a plurality of positions along said slot thereby to regulate the magnitude of the movement of said planet wheel carrier of said second diiferential means.

11. Apparatus as claimed in claim 4, the planet wheel carrier of said second differential means being mounted for oscillatory movement about said output shaft of said second diiferential means.

References Cited in the file of this patent UNITED STATES PATENTS 1,178,447 Hoenig Apr. 4, 1916 1,862,030 Oertel June 7, 1932 2,585,823 Norcross Feb. 12, 1952 2,785,527 Lewellen et a1 Mar. 19, 1957 2,946,244 Drtina June 14, 1960 2,996,870 Pornes et a1 Aug. 22, 1961 FOREIGN PATENTS 836,997 Great Britain June 9, 1960

Claims

1. APPARATUS FOR SPINNING AND WINDING FILAMENTARY MATERIAL INTO COPS, COMPRISING MEANS FOR FEEDING STRANDS TO THE APPARATUS, A CONE FOR FORMING A COP, DRIVE MEANS FOR ROTATING THE CONE AT A CONSTANT SPEED TO TWIST THE STRANDS, A MEMBER CONCENTRIC WITH THE CONE, MEANS MOUNTING SAID MEMBER FOR ROTATION WITH AND FOR AXIAL RECIPROCATORY MOVEMENT RELATIVE TO THE CONE, A SPINDLE FOR CARRYING THE COP, MEANS FOR ROTATING THE SPINDLE AT A SPEED DIFFERENT FROM THAT OF THE CONE TO CAUSE THE THREAD TO BE WOUND INTO A COP, FIRST DIFFERENTIAL MEANS FOR DRIVING THE FEED MEANS AT VARYING SPEEDS AND FOR RECIPROCATING SAID MEMBER, SECOND DIFFERENTIAL MEANS FOR DRIVING THE SPINDLE AT VARYING SPEEDS, AND DRIVE MEANS COMMON TO SAID FIRST AND SECOND DIFFERENTIAL MEANS AND TO SAID CONE DRIVE MEANS.