US3004726A - Winding machines, particularly cross-winding machines - Google Patents

Description

J. KUPPERS Oct. 17, 1961 WINDING MACHINES, PARTICULARLY CROSS-WINDING MACHINES Filed June 3, 1958 6 Sheets-Sheet 1 Fig. I

llvw wro MM? J. KUPPERS Oct. 17, 1961 WINDING MACHINES, PARTICULARLY CROSS-WINDING MACHINES Filed June 3, 1958 6 Sheets-Sheet 2 IN VEN r0 J. KUPPERS Oct. 17, 1961 WINDING MACHINES, PARTICULARLY CROSS-WINDING MACHINES 6 Sheets-Sheet 3 Filed June 5, 1958 Fig. 6

INVEII'I "r01 WW Oct. 17, 1961 J. KUPPERS WINDING MACHINES, PARTICULARLY CROSS-WINDING MACHINES Filed June 3, 1958 6 Sheets-Sheet 4 IN VEN r01? OW W Oct. 17, 1961 J. KUPPERS 3,004,726

WINDING MACHINES, PARTICULARLY CROSS-WINDING MACHINES Filed June 5, 1958 V 6 Sheets-Sheet 5 I I9. I0

, lNl/EN TOR w M M Oct. 17, 1961 J. KUPPERS 3,004,725

WINDING MACHINES, PARTICULARLY CROSS-WINDING MACHINES Filed June 3, 1958 6 Sheets-Sheet 1 Fig. 71

IN VEN TOR United rates The present invention relates to winding machines in general and to cross-winding machines with split drums in particular.

It is known to use so-called split drums for the drive of cross-winding machines and for the simultaneous shifting of the thread in cross-winding machines having a high winding velocity. Such split drums have a threading slot, so that the thread feeds itself into the split drums. Furthermore these split drums are mounted on a common axle and have mostly also at their inner side compensating ellipses, which serve the purpose to compensate irregular thread tensions during the winding of the spool.

Due to the always more increased winding velocity, for instance up to 1000 meters/min. and more, a drawback arises, however, in the split drums of the described structure due to the fact that the fiber fiy deposits itself inside 7 of the split drums in the smallest corners and edges, which drawback is still more increased the higher the winding velocity which is used. These fiber fly accumulations are carried away from time to time by the passing thread and reach the. cross-winder in the form of naps or adhering It is further known to provide such tension during the winding process, that for instance pointed places in the thread are broken. Due to the increased winding velocity it occurs sometimes that the not yet wound end of the thread is caught and winds itself then inside of the drum over the compensating ellipses or around the driving axle of the split drum, if the thread tears in the immediate vicinity of the winding spool. A removal of such a ball requires, however, that the entire machine must be stopped, which causes not only a reduction in the production, on the one hand, but also a loss of thread, on the other hand.

' It is, therefore, one object of the present invention to provide a winding machine, particularly a cross-winding machine with split drums which avoids the drawbacks of such known machines.

It is another object of the present invention to provide a cross-winding machine with split drums which are quite superior in their operation when compared with the known machines of this type.

It is still a further object of the present invention to provide a cross-winding machine with split drums wherein the split drums of the cross-winder comprise partdrums separated from each other by a separating split extending therethrough and which part drums are not connectcd on their inside, each of the drum parts being mounted and driven on its outside and are equipped with preferably smooth drum bottoms on their inside.

" By" providing the novel structure of the split drums, the

freely the inside of the drums due to this advantageous structure. Furthermore, it is now no longer possible that a torn oif end of the thread forms a ball since it hangs freely immediately after such break. Also the collecting slotis eliminated in this novel drum structure, so that I 3,004,726 Patented Oct. 17, 196i no fiber accumulations can occur at this point. Last, but not least, these drums operate safely and securely.

It is still a further object of the present invention to provide a cross-winding machine with split drums to arrange a cylindrical outer surface for each of the drum parts forming the drum and to drive these drum parts by means of drive shafts of equal cross section.

It is also a further object of the present invention to provide a cross-winding machine wherein instead of split drums discs scutchers are formed by reduction of the wall thickness of the drum parts in axial direction towards the separating split, which disc scutchers are not connected inside thereof on the one hand and likewise are driven only from the outside on the other hand and are mounted in such a manner that each of the two individual scutchers is driven by an adjacent drive.

Thus the present invention is based on the concept to form the drums or disc scutchers on their insides Without any obstacles which brings about very advantageous and effective results. In addition it must be emphasized that the arrangement of the drums or of the disc scutchers with equal axles leads not only to appreciable constructive advantages, but it shows also great advantages in connection with the drive means. Due to the novel construction in accordance with the present invention and the arrangement of the drum parts in cylindrical form, the manufacture of these parts is appreciably simplified.

It is, however, also another object of the present invention to provide a cross-winding machine with split drums wherein the axles of the two split drum parts are disposed angularly towards each other by forming an angle which is smaller than The relative position is arranged preferably in such a manner that the driving axles diverge strongly towards the winding spool. It is furthermore of advantage to form conically the drum parts cor-.

responding to the inclined angle between the axles in such a manner that the surface line engaged by the winding spool is a straight line. By this arrangement the axle of the thread input is flattened out due to the downwardly widening slot, which leads again to the advantage that too strong tension diiferences during the winding and in particular during the winding of the spool edges are avoided.

In order to achieve now a completely equal run of the two independently driven drum parts, in accordance with the present invention thedrive of these drum parts takes place over a joint gear drive, whereby the two driving gears are mounted on a common drive shaft and cooperate with the driven gears of the drive axles of the drum parts. Thereby the total run of the machine and of its drum parts, respectively, is throughout equalized and without any fluctuations.

In accordance with a further advantageous development of the present invention the split drums and the disc scutchers, respectively, are disposed between a pair of driving elements, whereby the drive may take place in such a manner that each drum part or each disc scutcher part is driven by the adjacent drive.

Due to this clever driving combination for the split drums or for the disc scutchers, in accordance with the present invention, not only an appreciable space saving is brought about concerning the entire arrangement of the machine in longitudinal direction, but also relative to the drive and its organs is it possible to provide less drive parts, namely gears and drive shafts and a completely reliable winding process may be achieved. Due to the drive of two adjacent drum parts or disc scutcher parts by means of a single drive element is it possible to accommodate many drums or discs within a comparatively small space. As to the driving technique this double drive of each of the drive units brings about the advantage that each drive shaft which carries at its end portions a 3 "part drum or a part scutcher is supported on both sides, "so that any unfavorable forces which may occur are properly and effectively balanced and received, respectively, by this two sided mounting. Any overloading which is experienced in a one sided mounting is completely exeluded due to this novel arrangement.

With these and other objects in view which will become apparent in the following detailed description, the present invention will be clearly understood in connection with the accompanying drawings, in which:

FIGURE 1 is an end view of a cross-winding machine showing the thread run;

FIG. 2 is a fragmentary schematic end view indicating the substitution of disc scutchers for the split drums and also indicating the thread run;

FIG. 3 is a front elevation of the machine, partly in section;

FIG. 4 is a schematic showing of the drive of the machine indicating an individual drive for each machine side;

FIG. 5 is a schematic showing of the drive of the 'machine indicating a joint drive for both machine sides;

FIG. 6 is a fragmentary front elevation of the drive 'with the split drum parts;

FIG. 7 is a schematic showing of the machine drive by means of spur gears;

FIG. 8 is a front elevation of the drive shown in FIG. 7;

FIG. 9 is a schematic showing of the machine drive by means of sprocket gears;

FIG. 10 is a front elevation of the drive indicated in FIG. 9; and I FIG. 11 is a front elevation of another embodiment of the present invention with split drum parts formed as truncated cones, the individual drum parts being disposed on driving axles which are arranged angularly towards each other.

Referring now to the drawings and in particular to the cross-winding machine disclosed in FIG. 1, a frame 10 has projecting arms 11 arranged above the bottom portion of :the frame 10, while the center portion of the frame 16 is "formed to a carrier 12 arranged above the projecting arms 11, the carrier 12 forming a bearing for the split drums 13 and 13 and of their drive means 14 and 14, respec- *tively. The winding spools 15 are driven in conventional manner on the split drums 13 and 13', which are of cylindrical shape in accordance with the present invention and are mounted and driven on their outside.

The run of the thread 16 takes place, thereby, in the following manner:

I The thread is taken at first from a standing running-off spool 17 and a standing cop 18, respectively, which are adjustable as to their height, whereby the balloon formed during the unwinding of the thread is broken by a balloon breaking device, as by a so-called balloon breaker 19. The thread 16 runs behind the balloon breaker 19 in the direction of the thread run through two slot thread cleanem 20 and 21 successively and reaches then the disc yarn brake 22 wherein the last fly or the like which still adheres to the thread 16 is removedby suction and:is fed into the suctionpipe 23.

The thread '16 runs upon leaving the ,disc yarn brake 22 -over a yarn guide rod 24 andthereafter through the thread guide . drums 13 and 13 which are constructed without ;inner connection and thus permit a free passing of the thread. These thread guided rums13 and 13 are driven by the drives 14 and 14, the structure of which will be set forth below. .The winding or-cross spools 15, which are detained in the spool holder 25 engage directly these thread guide drums 13 and 13'.

Referring now to the embodiment disclosed inFIGS. 2

-g2lIld 3 disc scutchers 27 and 27 are provided instead of :the thread guide drums 13 and 13' byreducing the wall thickness in axial direction looking towards the slit 26,

, which disc'scutchers 27 and 27' are not connected on their inside .on the one hand, and are merely mounted and driven on their outside, on the other hand. The drive of these disc scutchers 27 and 27' is brought about in accordance with the embodiment shown in the drawing by means of a screw drive whereby transmission gears 29 are provided on the main drive shaft 28 at the respective drive stations, which transmission gears 29 are for instance, screw gears. The drive is transmitted to an intermediate shaft 30 by means of the gears 29, which intermediate shaft 31 cooperates in turn with the drive shaft 32 of the disc scutchers 27 and 27' by means of intermediate gears 31.

These disc scutchers are arranged in such a manner that two scutcher parts are disposed always between two drive stations, that means that always a complete disc scutcher 27 and 27 is disposed therebetween and each individual scutcher 27 and 27, respectively, is driven by the adjacent drive, whereby each individual scutcher of a disc scutcher is driven separately from the other, however, from a common main drive shaft 28. Each machine side can thus be driven individuallyror if desired both sides may be driven jointly.

Referring now to the embodiment disclosed in FIGS. 4 to 6, such a machine drive is disclosed. As indicated in FIG. 4 of the drawings, two main drive shafts 33 and 34 are provided whereby the shaft 33 drives one side of the machine and the shaft 34 drives the other side of the winding machine. The drive transmission takes place again by means of a pair of screw gears 35 mounted on the main drive shaft 33 and 34, respectively, to the intermediate gears 36 and to the shaft 37 of the split drum.

The drive in accordance with FIG. 5 is arranged in such a manner that a single main drive shaft 38 is provided which drives both machine sides which have a common intermediate shaft 39 which transmits the drive to the drive shaft 37 of the split drums. Here again is the drive performed by means of screw gear transmission. As shown in FIG. 6, the individual drum parts 1.3 and 13' are disposed between each pair of adjacent drive stations in such a manner that always one drum part is driven from its adjacent drive. Furthermore, FIG. 6 indicates also quite clearly the cylindrical formation of the drums 13 and 13 on the one hand, and the coaxial arrangement of all drums 13 and 13.

Referring now to FIGS. 7 and 8 where a different drive arrangement of the machine is disclosed, which may be set either with one or if required, with two maindrive shafts 40 and 41, whereby the drive is transmitted by means of spur gears 42 to the intermediate gear pairs 43 which in turn cooperate with the drive gears 44 of the split drums 13 and 13 and of the disc scutchers 27 and 27', respectively. This arrangement of the spur gear drive is shown in FIG. 8 in a front elevation, whereby one split drum 13 and 13, is disposed between each pair of adjacent drive stations. The gear arrangement is preferably made along an inclined plane (FIG. 7), so that as to its height little space is required for the machine.

Referring now to FIGS. 9 and 10, an embodiment for a drive of a cross-winding machine is disclosed, whereby two main drive shafts 45 and 46, respectively, are provided which may be substituted, however, also by a single main drive shaft (not shown). The drive takes place in this arrangement directly from the'drive shaft to the split drums 13 and 13', and the disc scutchers 27 and 27', respectively, by means of a sprocket chain 47.

Referring finally to FIG. 11, an embodiment of a split drum 48, 49 is disclosed wherein both drum parts are of t uncated cone shape and each drum part is slidingly mounted and driven. The drive shafts'50 which carry thedrum parts 48 and 49 are angularly displaced towards each other and form an angle ,8 which is slightly less than These drive shafts 50 are laterally inserted into the drum parts 48 and 49 and are equipped outside of the drum parts with a drive gear 51. The mounting 52 for the shafts 50 is disposed outside of the drive gears 51. The drive of these gears 51 is brought about by additional gears 54 which are keyed to a common shaft 53.

The two drum parts 48 and 49 are formed conically corresponding with the inclined position of the driving shafts 50, so that the surface line 55 of the drum parts engaged by the winding spool 15 forms a straight line. The inner slightly arched drum bottoms 56 are completely smooth in accordance with the present invention so that no fly particles may set thereon. Any obstacles as axles, compensating ellipses, projections or the like are completely eliminated and thus any ball formation is excluded. The free space between the two drum parts 48 and 49 forms on the engaging point of the cross spool 15 a guide slot 57 for the thread of normal width, which is widened, however, in downward direction due to the annular displacement of the shafts 50, so that only at the winding point 58 the space between the two guide drums is of normal width, whereby the thread 16 engages the drum guide edges 59. A particular input slot is, thereby, eliminated since the widened space has sufficient width at the entrance point due to the fact that the drum parts 48 and 49 are inclined towards each other, in order to catch the thread 16. 1

As set forth above, the shown and described embodiments are merely examples for applications of the present invention and are not limited thereto, rather other embodiments and applications to the construction and to the formation of the split drums and of the disc scutchers, respectively, as well as to their drive means is possible within the scope of the present invention, which may be designed by embodiments different from those of the present invention.

Furthermore, it is also of advantage to provide a protection sheet peripherally around the split drums in order not to endanger the operator of the machine on one side and by providing an input slot in the protection sheet, the insertion of the thread is made easier and simplified. This protection sheet may be arranged in such a manner that it may be folded in order to permit of cleaning of the machine.

While I have disclosed several embodiments of the present invention, it is to be understood that these embodiments are given by example only and not in a limiting sense, the scope of the present invention being determined by the objects and the claims.

I claim:

1. In a cross-winding machine including winding spools, thread guide means, each of the latter comprising two parts separated from each other by a slit extending entirely throughout said guide means and being disconnected at the inside thereof, so that said slit runs through without any member extending across said slit, and each of said parts being mounted on its outside and means engaging the outside of each of said parts for individual driving of said parts.

2. In a cross-winding machine including winding spools, a plurality of split drums, each of the latter comprising two parts separated from each other by a slit extending entirely throughout said split drums and being disconnected at the inside thereof, so that said slit runs through without any member extending across said slit, and each of said parts being mounted on its outside and means engaging the outside of each of said parts for individual driving of said parts.

3. The cross-winding machine, as set forth in claim 2, wherein said parts forming jointly each of said drums are of cylindrical outer configuration, and coaxially disposed drive shafts for driving said drums.

4. The cross-winding machine, as set forth in claim 1, wherein each of said thread guide means comprises a pair of disc scutchers disconnected on their inside, and coaxially disposed drive shafts and driving means for driving each individual of said disc scutchers from the outside thereof by means of said drive shafts by means of an adjacent drive.

5. The cross-winding machine, as set forth in claim 1, wherein the inner bottom face of said parts is completely smooth.

6. The cross-winding machine, as set forth in claim 2, wherein the axes of said parts of each of said split drums are angularly displaced from each other and form an angle less than 7. The cross-winding machine, as set forth in claim 6, wherein said axes are inclined to diverge toward said winding spools.

8. The cross-winding machine, as set forth in claim 6, wherein said drum parts are of partial conical shape each coaxial with its axis, so that the surface line of said drum parts engaging said winding spools is a straight line.

9. The cross-winding machine, as set forth in claim 2, wherein each of said split drums is disposed between each pair of said driving means, and each of said parts being driven by the adjacent one of said driving means.

10. The cross-winding machine, as set forth in claim 1, wherein each of said individual driving means is disposed adjacent to and driving one of said parts of said thread guide means. a

11. The cross-winding machine, as set forth in claim 1, wherein said driving means have a common drive element operatively connected with each of said individual driving means for driving said parts of said thread guide means.

12. The cross-winding machine, as set forth in claim 1, wherein said driving means include main drive shafts and chain drives for driving said thread guide means.

References Cited in the file of this patent UNITED STATES PATENTS 1,161,284 Belz Nov. 23, 1915 2,605,053 Broden July 29, 1952 FOREIGN PATENTS 218,586 Germany Feb. 7, 1910 372,827 Germany Apr. 5, 1923 537,733 Germany Nov. 6, 1931 679,838 Germany Aug. 14, 1939 342,594 Italy Aug. 10, 1936 773,167 France Aug. 27, 1934 992,304 France July 11, 1951 1,082,462 France June 16, 1954

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