GB2401118A - Apparatus for winding rope-dyed indigo yarn for knitting - Google Patents

Abstract

Rope-dyed indigo yarns 2 are wound on bobbins for knitting by the steps of first separating the yarns into smaller groups which are wound simultaneously on sections 4 on a beam 5, then unwinding the yarns from each section 4 and winding them individually on reels 20 and finally unwinding the yarns from the reels 20 and winding them on bobbins (50, Fig 11) ready for knitting. A device 13 detects broken yarns. Fans 18 remove dirt. A weight 28 applies tension when unwinding from the section 4. A pivoting yarn guide frame is mounted in front of the reels 20.

Description

2401 1 18

A DEVICE FOR PRESETTING DYED INDIGO YARNS FOR KNITTING

TECHNICAL FIELD

The present invention relates to reeling on bobbins rope-form yarns, which are dyed with indigo techniques, in order to let such yarns manufactured as a result of knitting.

The present invention particularly relates to winding yarns on small and grouped tops and transferring them onto bobbins so as to involve such bobbins in knitting units, whereas such yarns, which are to be used as warps/wefts, are primarily dyed and joined in a rope form.

BACKGROUND OF INVENTION

Because of the characteristic of indigo dying processes, yarns are dyed as bobbins. The improvements under the scope of this invention aim to reel such yarns onto bobbins, after they are dyed under indigo dying techniques, in order to supply such bobbins for knitted and woven fabric sector.

Is Yarns are dyed in two ways according to the indigo dying technique: 1Rope dying technique; 2- Warp dying technique.

By means of this improvement, yarns are reeled onto bobbins as following: - Bobbin-type yarns are joined in rope making machines in order to obtain ropes.

Preferably 300 yarns are joined together under this process to obtain such ropes.

- Yarns, which are turned into ropes, are wound onto tops (beams) and dyed at indigo dying systems.

as - Such dyed ropes are willowed in rope willowing machines.

- Such dyed ropes are directly turned into fabrics in looms.

The processes expressed above are the same in all facilities performing indigo dying operations with this rope dying system.

DESCRIPTION OF INVENTION

Under the light of the foregoing, it is aimed to reel indigo dyed yarns onto bobbins for subsequent knitting operation.

An objective of the present invention is to wind yarns onto reels in a rope willowing operation in a single unit by the use of separator beam system.

Another objective of the present invention is to make ready such reeled yarns for knitting, after they are wound on bobbins.

A further objective of the present invention is to kniVweave such yarns, which are primarily reeled on bobbins and dyed with the use of indigo dying techniques.

to Whilst such ropes, dyed under indigo dying techniques, are willowed in rope willowing machines, they are primarily wound on separator beams and then such reeled yarns are wound -on a reel as a single yarn- and then transferred directly onto bobbins. Finally, such bobbin-type yarns are subjected to knitting/weaving operations.

Is Here, such ropes consisting of 300 yarns are wound onto 5 separator beams so that each rope consists of 60 yarns. These yarns can be changed depending on the number of yarns in a rope to be processed in such facilities. The number of separators and reels can further be altered depending on the number of yarns making up such ropes.

no The objectives, characteristics, and advantages of the present invention shall be made clear by a description of an exemplary embodiment, as illustrated in the annexed figures.

BRIEF DESCRIPTION OF FIGURES

Figure 1 illustrates an aeration unit and winding unit set up for rope willowing as operation.

Figure 2 gives a front view of an assembled separator beam.

Figure 3 gives a perspective view of a reeling unit, where separator ropes reeled on separator beams are wound onto reels.

Figure 4 gives a perspective and front view of a beam unwinding apparatus.

Figure 5 gives a top and side view of a reeling unit.

Figure 6 gives a front view of an assembled motion distribution mechanism.

Figure 7 illustrates carrier shafts and mobile vertical side couplings.

Figure 7a gives a view of piston chassis and the piston of mobile vertical side couplings and carrier shafts.

Figure 7b gives a view of the assembly of separator frame on chassis.

to Figure 8 gives a view of the assembly of pivoting mechanism on lower platform.

Figure 9 gives a view of the assembly of pivoting mechanism drive.

Figure 9b illustrates the yarn-break control guides on the pivoting mechanism.

Figure 10 gives a detail of shifting action transmitted to the pivoting mechanism.

Figure 11 gives a perspective view of bobbin making unit.

Figure 12 illustrates the unit where bobbin-type yarns are knitted/woven to obtain batch parties.

REFERENCE NUMBERS

1- Rope bucket; 2- rope; to 3- rope willowing unit; 4- separator beam; 5separator rope; 6- reeling unit; 7- aerating unit; 8- stationary rings; 9bar; 10- aerating reel; 11- aerating cylinder; 12- pull-back unit; 13pull-back cylinders; 14- redirecting reels; 15- shaft; 16- main beam stopper; 17- mean beam body shaft; to 18- particle removing elements; 19separator beam stopper; 20- PVC reel; 21- yam; 22- beam unwinding apparatus; 23- winding mechanism; 24- base; 25- foot; 26- shaft; 27weight mechanism; 28- weight; 29- weight rope; 30- fastening arm; 31ceramic yarn guides; 32- pivoting mechanism; 33- carrier shaft; 34- motion distribution mechanism; 35- chain gear; 36- motor; 37- pivoting mechanism drive motor; 38- mobile vertical side couplings; 39- stationary vertical central couplings; 40- lower platform; 41- pivoting mechanism feet; 42roller and bearings; 43- separated frame;

44- unwinding table;

45- reel table;

s 46- readers; 47- guide; 48- paraffin plate; 49- winding shaft; 50bobbin; lo 51- bobbin carrying arms; 52- circular knitting machine; 53warping creels; 54- mobile fans; 55- bobbin winding unit; 56- knitting unit; 57- fixation platform; 58- chain-chain gear; 59- guiding motion elements; 60- bearing cylinder; to 61- contacting element; 62- support; 63- needle and lifter; 64- winding unit; 65- side coupling pressing piston; 66- side coupling piston and side coupling shaft chassis; 67- side coupling shafts; 68- yarn-break control guide; and 69- stopping mechanism.

The present invention is described with an exemplary embodiment by referring to so annexed figures.

DETAILED DESCRIPTION OF INVENTION

The present invention consists of four parts in general: 1- winding unit to reel ropes on separator beams; 2- winding unit to wind separator beams on reels; 3- bobbin winding unit; and 4- knitting unit.

The rope (2), which is formed preferably from 300 yarns and previously dyed in dying units and let stay in a rope bucket (1) thereafter, is wound on separator beams (4) here, namely in the rope willowing unit (3). This winding operation is to realized preferably by winding this 300-yarn rope (2) on 5 separator beams (4), by separating the former into 5 ropes (2), each containing 60 yarns. For the descriptions hereinafter, the term separator rope (5), shall replace the term, yarn wound on separator beams (4). The reason why such a separation operation is carried out here can be explained on the basis of keeping small the reel winding unit (6) of ropes (2) wound on a single beam.

Such rope (2), which is removed from said rope bucket (1) is subjected to a series of aeration processes in order to aerate, humidify it, and to prevent any break-offs, while it is wound on separator beams (4), and also to provide the yarns in separate forms, instead of stuck with each other.

go Figure 1 illustrates an aeration unit (7) and a winding unit set up for such aeration process. Said rope (2) is firstly passed through two lower and one upper positioned, preferably a total of three stationary rings (8) so that the winding process on said separator beams (4) is carried out flawlessly. Said rope (2) is further passed through nine bars (9), which are fixed on the floor as well, and redirected thereby continuously. It is then passed through two aeration cylinders (11), preferably arranged one after the other, and is conveyed to a pull- back unit (12). The reason why it is passed through this pull-back unit (12) can be explained on the following basis: if one of the yarns (21) breaks off, whilst the rope (2) is willowed, the willowed rope (2) is pulled back to allow such broken yarn to be so knotted. Such a pull-back unit is involved to mechanically carry out this process.

And finally, thanks to redirecting reels (14), the rope (2) is further redirected by a final aeration reel (10) and is fed to the rope willowing unit (3).

Figure 2 illustrates a front view of assembled separator beams (4). Said rope willowing unit (3) operates so that the separator beams (4), which are rotated forcedly and positioned side by side, are wound. Such separator beams (4) are assembled on a shaft (15) with a preferred number and are stopped with two main beam stoppers (16) in order to keep them from making right and left shifting actions during improper (i.e., winding) on a main beam body shaft (17) separated by plurality of separators. The main beam stoppers (16) can both be positioned to with screws on the main beam body shaft (17) and with fixation elements to be fastened externally. Foreign particles (dust, etc) are unwanted on separator beams (4) during a winding operation, and therefore particle removing elements (18) are used. Such particle removing elements are two fans, which are positioned facing one another. A suction fan can also be utilized here to cover the top of the rope willowing unit (3).

Figure 3 gives a perspective view of the reel winding unit (6), where separator ropes (5) wound on separator beams (4) are wound on reels (20). The separator rope (5) wound on separator beams (4) in the rope willowing unit (3) is a rope, which consists preferably of 60 yarns. Before such ropes are reeled, they are to wound on reels (20) in the form of a single yarn (21). The reeling unit (6) consists of two parts. The first part is the beam unwinding apparatus (22) and the other is the winding mechanism (23), where such winding operations are carried out.

Figure 4 gives a perspective and front view of the beam unwinding apparatus (22).

As it can also be seen from this Figure, a shaft (26) is supported by two feet (25) on a base (24). This supported shaft (26) makes counterclockwise and clockwise rotations around its own axis. Thus the separator beam (4) fastened on this shaft (26) rotates as well. The separator beam (4) is assembled so that it can be demounted by means of a fastening arm (30). The separator beam (4) is not desired to rotate in -Q- direction. A weight mechanism (27) is involved to prevent such circumstances. Said weight mechanism (27) ensures a weight (28) to exert pressure on the shaft (26). A weight rope (29) wound on the shaft (26) comprises a weight component at one end thereof and the other end is attached to other weight (28) the weight quantity of which can be adjusted so that it only compensates the inertia of a wound separator beam (4).

The ropes (5) to be wound on reels (20) are passed through a stationary ring (8), after being passed through the beam unwinding apparatus (22). Each of such yarns (21) passed through this stationary ring (8) is wound on one reel (20). A pivoting mechanism (32) is involved that displaces on x and -x directions and that accommodates ceramic yarn guides (31) to provide a smooth winding on said reels (20).

to Figure 5 gives a top and side view of the reeling unit (6). This reeling unit (6) preferably comprise a carrier shaft (33) supported by 6 pairs with 10 reels on it.

There are two motors (36) involved in this system, one of such motors driving the pivoting mechanism (32) and the other the motion distribution mechanism (34).

Figure 6 gives a front view of an assembled motion distribution mechanism. The motion distribution mechanism (34) is driven (36) with said motor (36) preferably by means of a chain gear (35) and transfers this action to symmetrically lined carrier shafts (33) by means of chain gears (35) again. There are two chain gears (35) on carrier shafts (33), one of them being used for the rotational motion that it performs around its own axis and the other used for the action transfer it provides go to the other carrier shaft (33).

The pivoting mechanism (32) accommodating said ceramic guides (31) makes shifting actions on x and -x directions with the drive it receives from the motor.

Thanks to such shifts and the ceramic guides (31), a smooth winding is obtainable on said reel (20).

Figure 7 illustrates the carrier shafts (33) and mobile vertical side couplings (38).

The carrier shafts (33) are assembled so that they can be demounted by means of such mobile vertical side couplings (38) and stationary vertical central couplings (39). Side couplings (38) and central couplings (39) are gathered on a lower platform (40). -9 -

Figure 7a illustrates the system that ensures an easy assembly/disassembly of separators (19) on said carrier shafts (33). Mobile vertical side couplings (38) and side coupling pistons (65) assembled on a side coupling chassis (66) and the side coupling piston (65) move the side coupling shafts (67) thereon to fasten said separators (19) in the working position. Once the piston (65) charge is removed, the separator (19) can easily be demounted.

Figure 7b gives the assembled view of separated frames (43) on the mobile vertical side couplings (38) and lower platform (40).

Figure 8 gives the assembled view of the pivoting mechanism on the lower to platform (40). The pivoting mechanism (32) makes a linear motion on the lower platform (40) and on the feet (41) of said pivoting mechanism. The pivoting mechanism (32) is modularly assembled to said feet (41) by means of roller and bearings (42).

Figure 9 illustrates the mechanism, which is realized for the x and -x direction i5 motion of the pivoting mechanism (32). The pivoting mechanism is positioned on a fixation platform (57) of a drive motor (37). The pivoting mechanism drive motor (37) transmits its action to guiding motion elements (59) by means of a chain-chain gear (58) without redirecting it. Said guiding motion elements (59) consists of two supporting cylinders (60) and a chain-chain gear (58). The pivoting mechanism to (32) is moved by means of the chain- chain gear (58) fastened on said supporting cylinder (60). A contact element (61) is used as a base and is moved on a support (62). One end of this contact element (61) is fastened to the bush on the chain (58) and the other end onto the pivoting mechanism (32). Though the motor (37) rotates in one direction only, said pivoting mechanism moves both to right and left.

This condition is given under Figure 10 in details. The ceramic guides (31), which are used to smoothly wind up the yarns (21) on reels (20), are positioned on a separated frame (43). This separated frame (43) is as long as the series of carrier shafts (33; preferably 6 reels in this case) carrying said reels (20).

Once the yarns (21) are wound on the reels (20) and are finished, the reels are So removed from the carrier shafts (33). -lo-

lf one of such yarns (21) breaks off in any stage of manufacture, the system is to be stopped. This condition is controlled by a yarn-break control guide (68) illustrated under Figure 9b. When any of the yarns (21) is broken off, the yarn- break control guide (68) makes a downward motion and makes a contact with a stopping mechanism (69). Thanks to this contact, the system is stopped and undesired circumstances, where entire yarns are broken and/or get tangled, for instance, are prevented.

The following operations include the steps, where said reels (20) are turned into bobbins. This process is realized on unwinding tables (44) and is illustrated under to Figure 11. A reel (20) is positioned on a reel table (45) and before all else, the yarn is passed between two optic readers (46) by means of a guide (47). This makes sure the yarn is within the winding. Commercially available sensors can also be used in place of such optic readers (46). Before the yarn (21) is wound on bobbins, it is treated with paraffin on a paraffin plate (48). Then it is wound on a Is bobbin (50), which makes a rotational motion on bobbin carrying arms (51) by means of a winding shaft (49). The bobbin (50) is driven by said winding shaft (49) Figure 12 illustrates the unit, where the yarns (21) on the bobbin (50) are woven to manufacture cloth batches. Such bobbins (50) are positioned on a warping creel no (53) lined up around three sides of a circular knitting machine (52) and whilst said knitting machine (52) is operated, mobile fans (54) are continuously used to remove any unwanted particles. The yarns on such bobbins (50) are turned into fabrics by means of a needle and lifter (63) and are wound in the winding unit (64).

Claims (21)

1. A device for obtaining yarns from ropes which are dyed according to indigo dying techniques for winding the yarns on bobbins for subsequent knitting operation, comprising; a rope willowing unit having a plurality of separator s beams on which said ropes are simultaneously wound; a reeling unit for transferring the yarns wound on said beams to reels; a bobbin winding unit for providing the yarns being ready for the knitting; and a knitting unit for obtaining knitted fabrics by the indigo yarns wound on the bobbins.

2. A device according to claim 1, characterized in that the ropes comprise three to hundred yarns divided by five so that five separator beams each have sixty yarns.

3. A device according to any one of the preceding claims, characterized in that a rope bucket comprises the rope having three hundred yarns which are wound on the separate beams in the reeling unit.

Is

4. A device according to any one of the preceding claims, characterized in that the separator beams are positioned coaxially and rotated forcedly.

5. A device according to any one of the preceding claims, characterized in that the separator beams are mounted on a shaft; and in that each separator beam comprises a beam body shaft and each beam body shaft is separated by separators; and in that two main beam stoppers are provided for covering the both ends of the separator beams to prevent from making right- and leftward shifting actions of the yarns.

6. A device according to any one of the preceding claims, characterized in that the reeling unit comprises a beam unwinding apparatus and a winding mechanism.

7. A device according to any one of the preceding claims, characterized in that the beam unwinding apparatus comprises a shaft supported on a base by means of two feet; in that said supported shaft is capable of rotating on its own axis both in clockwise and counterclockwise directions; in that the separator beams fixed on said shaft is capable of making rotational motion; and in that the separator beam is modularly assembled by means of a fastening arm.

8. A device according to any one of the preceding claims, characterized in that s said separator beams are rotated only in clockwise direction during operation.

9. A device according to any one of the preceding claims, characterized in that a weight mechanism comprising a weight rope wound on the shaft and having weights at two ends thereof, whereby the weight mechanism is capable of compensating the inertia of the separator beam.

to

10. A device according to any one of the preceding claims, characterized in that the winding mechanism comprises a plurality of reels each having yarns passing through a stationary ring after the beam unwinding apparatus and the yarns are wound on the reels; and a pivoting mechanism comprising ceramic guides guiding the yarns to be wound on the reels and the pivoting mechanism is capable of making linear shifting motions to obtain a smooth winding on such reels.

11. A device according to any one of the preceding claims, characterized in that said winding mechanism comprises carrier shafts and the number of carrier shafts is six with ten reels thereon; two motors one of which drives said pivoting mechanism and the other drives a motion distribution mechanism.

12. A device according to any one of the preceding claims, characterized in that a chain gear is provided for transmitting the driving motion provided by the motor to the motion distribution mechanism and for transmitting the driving motion to the carrier shafts, which are symmetrically lined up, by means of chain gears, and in that two chain gears are provided on the carrier shafts, one of which rotates about its own axis, and the other transfers the driving motion to other carrier shafts.

13. A device according to any one of the preceding claims, characterized in that the pivoting mechanism accommodating ceramic guides performs a linear motion by the driving motion received from a pivoting mechanism drive motor.

14. A device according to any one of the preceding claims, characterized in that s said carrier shafts are detachably mounted to mobile vertical side couplings and stationary vertical central couplings and in that said side couplings and central couplings are positioned on a lower platform.

15. A device according to any one of the preceding claims, characterized in that coupling pistons drive the mobile vertical side couplings on side coupling to shafts in order to fasten said separators in their operation position.

16. A device according to any one of the preceding claims, characterized in that said pivoting mechanism performs linear motion on the lower platform and on the feet; and in that said mechanism is detachably mounted on its feet by means of roller and bearings.

17. A device according to any one of the preceding claims, characterized in that the pivoting mechanism drive motor is positioned on a fixation platform; the pivoting mechanism drive motor transmits its motion to guiding motion elements by means of a chain-chain gear without redirecting this motion; the guiding motion elements comprises two bearing cylinders and chain-chain no gear; the pivoting mechanism is driven by means of the chain-chain gear fixed on the bearing cylinder; a contact element is used as a base and is moved on a support; and one end of this contact element is coupled on the bush on the chain gear and the other end is coupled on the pivoting mechanism.

18. A device according to any one of the preceding claims, characterized in that said reels are wound on bobbins; said reels are positioned on a reel table; the yarns are passed through two optic readers by means of a guide; the yarns are contacted and treated with paraffin on a paraffin plate before being wound on the bobbins; the yarns are wound on bobbins, which rotate on bobbin carrying arms by means of a winding shaft; and in that said bobbin is driven by so said winding shaft.

19. A device according to any one of the preceding claims, characterized in that said bobbins obtained by indigo dying techniques are positioned on warping creels lined up on three sides of a circular knitting machine for knitting.

20. A device according to any one of the preceding claims, characterized in that a yarn-break control guide is provided for acting and the guide contacts with a stopping mechanism, once a yarn is broken off.

21. A device substantially as hereinbefore described with reference to or as shown in the accompanying drawings.