IL27196A - Spinning apparatus with winding arrangement - Google Patents

Description

SPINNING APPARATUS WIfH WINDING ARRANGEMENT KARL FISCHER Apparate-und RohrleltungsTjau Berlin-Borsigwalde The present invention relates to a spinning aparatus provided with means for winding up the filaments, such apparatus being of the type that is composed of a plurality of adjacent units each comprising a spinning head having at least one row of spinning nozzles, a shaft leading downwardly from said row, godet rollers mounted below said shaft for rotation about horizontal axes, reels for winding up the filaments issuing from said nozzles} said filaments issuing from the downwardly facing spinning nozzles are fed downwardly through the spinning shaft and past applicator pads in contact therewith. These pads are soaked with a suitable agent for treatment of the filaments. Below these pads the filaments pass across godet rollers and after having transversed these rollers, the filaments are wound up by driven reels forming part of the winding means.

In prior spinning apparatus of this type the horizontal axes of the godet rollers extend at right angles to the horizontal row or rows of the spinning nozzles and, consequently, to the vertical plane in which the filaments issuing from the nozzles are fed downwardly past the applicator pads.

For this reason it is a requirement in the prior spinning apparatus that a guide for the filaments be provided below the applicator pads, such guide ensuring that the filaments will move in contact with the applicator pads even though most of the filaments are so diverted below the guide as to leave the afore-mentioned vertical plane. This diversion is necessary in order to enable the filaments to be evenly distributed across the godet rollers longitudinally thereof, these rollers being disposed at right angles to said vertical plane.

In this prior apparatus the number of the spinning nozzles that may be provided in each unit is limited to a maximum of about 4 nozzlejf bodies, each body being provided either with 2 orifices producing monofilaments or with a multiplicity of orifices cooperating to produce a multifilament. With this prior apparatus the set of nozzles in eaoh unit produces either 4 multifilaments Or 8 monofilaments. Where it he attempted to increase the number of nozzles per unit beyond these limits, the angle of diversion of the filaments below the guide would become excessive.

It is the primary object of the present invention to provide an improved apparatus of the type described hereinabove in which the numbe of spinning nozzles in each unit can be increased considerably beyond the afore-atated limits without jeopardizing a uniform distribution of the filaments across the godet rollers. Further objects ware to eliminate the guides referred to hereinbefore to thereby simplify the structure of the apparatus and to attain the afore-stated primary object of the invention without rendering the apparatus more expensive and complex.

Further objects of the present inventio will appear from a detailed description of some preferred embodiments of the invention following hereinafter with reference to the accompanying drawings. It is to be understood, however, that the present invention is in no way limited or restricted to such details but is capable of numerous modifications within the scope of the appended claims.

According to one aspect of the present invention the spinning apparatus of the type, composed of a plurality of adjacent units each comprising a spinning head having at least one row of spinning nozzles, a shaft leading doanwardly from said row, godet rollers mounted below said shaft for rotation about horizontal axes, reels for winding up the filaments having issued from said nozzles and passed over said godet rollers and extending from there to said reels, and means for driving said reels, the axes of the godet rollers extending parallel to said row of spinning; nozzles, whereas heretofore they extended at right angles thereto.

Therefore, the godet rollers are also disposed parallel to the vertical plane in which the filaments leaving the nozzles pass downwardly through the spinning shaft and past the applicator pads. As a result, the guide above referred to can be dispensed with because all the filaments after having passed across the applicator pads are no longer diverted hut remain substantially vertical moving tangentially into contact with and across the first godet roller.

Therefore, the present invention offers the advantage of enabling the capacity of the spinning unit to he increased.

In a prior spinning aparatus of the type above referred to, the spinning nozzles of the different units are disposed on a common horizontal straight line which extends parallel to the axis of the machine. The present invention is primarily applicable to a spinning apparatus of this type. In this event the axes of the godet rollers extend parallel to the axis of the machine and parallel to the afore-mentioned straight horizontal line on which the spinning nozzles are located. It is also possible, however, to dispose the individual spinning units one behind the other, so that the row or rows of the spinning nozzles of each unit extend parallel to those of the other units and transversely to the machine axis. In this event the axes of the godet rollers are likewise disposed transversely to the machine axis.

In the spinning apparatus of the conventional type a lower godet roller and an upper godet roller are provided and each filament, after passing across the applicator pads, is first fed across the lower godet roller and then upwardly towards and across the upper godet roller and then downwardly again to the driven reels.

Since the capacity of a spinning apparatus constructed in accordance with the invention can he increased by increasing the number of nozzles in each unit, it is obviously desirable to so construct the apparatus that the number of reels can be increased accordingly. This specific object is attained by the equipment of each unit with a plurality of upper godet rollers.

In the accompanying drawings- Pig. 1 is a side view of a unit of a spinning apparatus constructed in accordance with the invention, said unit being provided but with a single upper godet roller, Fig. 2 Is a partial front view of the spinning apparatus, two of its units being visible in this figure, Pig. 3 is a side view similar to that in Pig. 1 of a modified uni having a pair of upper godet rollers and Pig. 4 is a partial plan view of a spinning apparatus having units of the type shown in Pig. 3, two of such units being visible in Fig. 4.

Above a tube 1 forming the spinning shaf of the unit shown in Pig. 1, a spinning head 10, as shown in Fig. 4, provided with a horizontal row of eight spinning nozzles is disposed, the axis of each nozzle coinciding with the vertical plane E which extends parallel to the axis A of the machine shown in Fig. 4* Where the spinning apparatus serves to produoe synthetic filaments from a plastic fed to the nozzles in molten condition, the filaments after issuing from the nozzles are fed downwardly through the spinning shaft which is traversed by a horizontal stream of air which cools the filaments rapidly causing them to solidify. For further cooling the filaments are fed downwardly through the tube 1 and pass across and into oontact with applicator pads 2 mounted therebelow. These pads may be formed by rotary disks. Below these pads the filaments move over a godet roller 3. On their way between the nozzles and the godet roller 3 the filaments remain substantially vertically disposed within a plane 5, the godet roller 3 being disposed tangen ially to this plane E. The horizontal axis o the roller 3, therefore, extends parallel to the row of spinning nozzles. The godet roller is mounted for easy rotation. The filaments passing around the roller 3 are divetrted to move upwardly within a vertical plane B into contact with an upper godet roller 3* which is mounted parallel to the godet roller 3 an tangentially to the plane P. Afte passing around the roller 3* the filaments move downwardly towards the reels 4, 4* which are driven in the conventional manner by rollers 5 and are adapted to be stopped by brakes 6.

As shown in Figs. 1 and 2 each unit includes an upper group of reels 4 and lower group of reels 4*» the groups being disposed on either side of the vertical central plane G of the unit. The filaments after leaving the upper roller 3* are laterally diverted, the four filaments on the left of the plane G moving towards the left with reference to Pig. 2, whereas the four filaments at the right of plane G are diverted to the right. Hence it will appear that each of the reels 4 or 4% respectively, is coordinated to one of the eight nozzles. As the group of reels 4* is located On a lower level than the group of reels 4 it is possible to mount the individual units in closeby to each other without interference of one group of reels with the other, as shown in Pig. 2.

The unit described differs from the conventional design by the disposition of the horizontal axes of the rollers 3, 3* parallel instead of transversely to the plane E and by the disposition of the axes of the reels transversely instead of parallel to the plane E. Apart from this distinction the spinning apparatus embodying ottr invention may be constructed ^us as the conventional spinning apparatus. Therefore, the details of such apparatus need not to be described.

The embodiment illustrated in Figs. 1 and 2 may be modified in numerous ways. Thus, in Pig, 4 a spinning apparatus is illustrated in which each unit includes a row of sixteen nozzles. The units are so disposed adjacent to each other along the machine axis A, that all of the nozzles are located on a horizontal straight line 1 extending parallel to the machine axis A.

Moreover, this unit differs from that shown in Pigs. 1 and 2 also by the provision in each unit of a second upper godet roller 3* on a higher level than that of the godet roller 3» and by the inclusion in each of the groups filaments 4 and 4* of eight coaxially disposed reels. Eight of the sixteen §4e¾©sea4s fed upwardly within the vertical plane P into contact with the upper godet y move alon the same paths as desoribed with reference to Fig. 1. The remaining eight filaments are fed from the roller 3*» through an angle of 90°, in a horizontal direction towards the roller 3" and from this second roller downwardly to the reels. it will he noted that the second upper roller 3" s mounted for rota-* tion about a horizontal axis extending parallel to that of the roller 3* at the same upper level.

As each filament, when on its way from the applicator pad 2 to the roller 3 moves within the vertical plane B without being diverted therefrom, as it occurs in the prior art spinning apparatus, each filament is subjected to the same stress as the other filaments on its way from the spinning noazle to the roller 3. T is results in the production of filaments of uniform quality which is of great importance for producing threads composed of a multiplicity of filaments.

T e embodiments described can he modified in numerous ways. Thus, the number of nozzles per unit cay be increased as desired.

Moreover, each unit may be provided with two or more closely adjacent rows of nosszles extending parallel to the straight line H.

From the foregoing it will be seen that this invention is one well adapted to attain all of the ends and objects hereinabove set forth, together with other advantages which are inherent to the apparatus.

While the invention has been described in connection with various preferred embodiments thereof, it will be understood that it is capable of further modification, and this application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains, and as fall within the scope of the invention or the limits of the appended claims.

Claims (6)

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1. A spinning apparatus composed of a plurality of adjacent units each comprising a spinning head having at least one row of spinning nozzles, a shaft leading downwardly from said row, gode rollers mounted below said shaft for rotation about horizontal axes, reels for winding up the filaments issuing from said nozzles, said filaments passing over said godet rollers and extending from there to said reels, and means for driving said reels, the axes of said godet rollers extending parallel to said row of spinning nozzles.

2. A spinning apparatus composed of a row of adjacent units as the axes of the godet rollers extend claimed in claim 1 in which f ifl row of units. cattondo parallel to an axis which is parallel to said row of nozzles.

3. A combination claimed in claim 1 In which said godet rollers include one lower roller disposed on a lower level, and at least two upper rollers disposed on a higher level, said reels comprising groups of coaxial reels, each group being disposed below one of said upper rollers.

4. A unit in a spinning apparatus as claimed in claim 1 in which the axes of said reels extend horizontally at right angles to said row of nozzles.

5. Apparatus substantially as illustrated in Figures 1 and 2 and described with reference thereto.

6. Apparatus as illustrated in Figures 5 and 4 and described substantially with reference thereto.