US2181535A - Production of sliver - Google Patents

Description

Patented Nov. 28, 1939 PATENT-orifice monucrron or suvnn Ludwig Schlipp, K'assel, and mamas, Kassel- Bettenhausen, Ge

rmany faser Aktiengesellschaft, Kassel-Bettenhauaen,

' Germany, a corporation of Germany 1 assignors to Spinn- Application July '1, 1938, sci-m No. 217,878

Germany February 14, 1938 8 Claims. (oi,- 19-99) This invention relates to apparatus for'manuiacturing from cellulose wool a sliver which is capable of being drawn and can be spun directly without a subsequent combing operation.

As is well known, the longer and better sortsof wool are worked and spun in the so-called worsted yarn process and the so-called top or combed material islthe most important trade product. After the wool :has been steeped,-

washed, cleaned and prepared in any other'suitable manner, it is treated in a roller card to ob tain a card sliver which is capable of being drawn and is combed in the combing machine while permanently doubling and drawing it, so as to lay the fibres parallel, to remove the neps and nits; such as impurities, undesirable formations'small knots and the like and to re'niove'the comber waste or noils. The ideal sliver rso obtained, the so-called top or combed material, which consists only of relatively longfwell-loosened and parallelly arranged fibres and lends itself very well for drawing, is now usually subjected to the draw-' spinning process.

This invention has for its object the production from cellulose wool of a sliver which is equivalent to this combed wool material.

Ariother object of the invention is to produce a sliver which renders the combing operation un-.

necessary, and forms avery voluminous yam.

With these and further objects in view .which will hereinafter appear, our invention consists not only of the structures herein pointed out and illustrated by the drawing, but relates to further structures as hereinafter may be claimed.

The-character of the invention, however, may be best understoodby reference to one of its structural forms, as illustrated by the accompanying drawing, showing in Fig. 1 a schematic side view of our no'v'el machine and in Figs. 2 and 3 details of Fig. 1, on a larger scale.

Referring to the drawing, it will-- bepseen a support or table It carries by. means of rollers' IS an endless feed lattice" I for the'card which comprises a machine frame I5 carrying pairsof f --fluted rollers 2 and a shell feeder plate 3 for feeding the cellulosewool to pickingroller's 11 which in turn transfer the material to a taker in or licker-in 4 which'feeds thematerial to themain cylinder or swift 5 of a specially constructed card.- This card-in accordance with the invention, is

a "mixed or combined cardcomprising'a roller and clearer card portion (which is sometimes also referred to as a worker and stripper card) anda revolving flat card portion,- and the worker and clearer rollers I and't being arranged before the flats with normal flat chain 6, which is guided, in the manner .inary loosening of the long-fibred spinning mate- 5 rial and to prevent'larger fibre balls from entering between main cylinder and flat. The fiat-card portion'in' turn is. mainly constructed to parallelize and. straighten the-fibres and to remove neps and nits therefrom. Hence it rather takes 10 over the function which in the wool industry is carried out, by the combing machine. It will thus be understood that we do not use the revolving flat card which is practically used exclusively in the cotton fine yarn industry, nor 1 the roller card used in the wool industry and in the cotton coarse spinning, nor a combination half roller card, half flat card having stationary .24 the ends of which are inclinedat angles of,

for example, 74, with respect to the fiat surface,

against the pins of the main cylinder, as best seen 80 inFlg. 2,.while the other type of covering, 91;, is fitted with pins 23 theends of which are directed at angles of substantially 90 to the flat surface, as best seen in Fig. 3. Thus, the flats so will exert a normal carding action, while the flats 9b will exert-only a slight carding action or rather a stroking and straightening action.a- One or more flatsab are arrangedbetween two successive flats 9a which are spaced from each other at intervals corresponding at least to the maximum length of 40 staple of the fibres; Thus, it will be understood that a singlefibre in spite of its relatively great length will not be acted upon by two flats 90 at the same time, whereby. dimculties would 1 be caused in view of the said great length of the I fibres, but the fibres are rather guided and held parallel only between two successive flats'la, by

' theiutermediate flat or flats 911'.

I' when workingmaterial of medium length, e. g. of 50,- or mm. length, one net with the new 50 stroking'clothin'g is arranged. between two -llats having normal clothing; in the case of still longer fibre material .two, three or several flats with stroking clothing may be inserted between two inder. I stroking out rapid clogging of the flat cards takes inthe fact that the flats with the stroking clothing have a carding action to a limited extent without these flats however preventing those fibres which are held back on one of the carding flats, being able to be smoothly stroked out by the cyl- When there is no possibility of smooth place; Since-the vertically disposed hooks, exerting more of a stroking action, also maintain a carding action, although a weakened one, the

7 working of fibres having a staple shorter than 50 mm. is also possible on the same machine. There is in addition suflicient carding action, impairment of the fibres, moreover, being particularly well avoided. In this connection it is of importance that the curling of the fibre, which plays an important part for the working of cellulose "wool, is extremely well-protected when using the new cards. Y Arranged at the rear end of the fiat is a flat stripping apparatus 25 and a dofling comb 22 for removing the material from the flat.

Mounted on the mainframe 15 in series with the main roller 5 and in contact therewith is a doffer it which is acted upon by a dofllng comb for combing the web from the surface of the do!- fer it. A funnel 12 for condensing the web to a sliver is further mounted on the main frame 15. A separate coiler 28 serves for collecting the sliver.

' We do not propose to use a fancy or fly roller,

as we have found that in our novel machine the same would cause entangling of the fibres Inmachine as follows: The endless cellulose wool is advantageously" cut to a length of staple over 50 mm., dried, and fed over the lattice i, through the pairs of fluted rollers 2, theshell feeder plate 3 and the picking rollers I'I to the taker ln l which in turn delivers the material to the main roller 5. The spinning material is now first preliminarilyloosened in 50 the worker and clearer rollers l' and 8 and formed into a web, and is then straightened and freed from neps and nits between'the revolving flat 8 and the mainroller in such a manner that the flats so have, a more intensiveor normal carding action while the flats 9b have only a slight carding actio n and stroke and straighten only, as hereinbefore described.

The fleece or web is then transferred to the dollar l0 from which it is removed by the domng the fibres comb Ii and fed to the calendering apparatus or condensing funnel [2. v

The sliver so obtained may be collected in con ventional manner in a can 26 and packed or delivered directly to spinning-machines of the kind known, for instance, in worsted yarn manufacture, avoiding the use of vacombing machine.

The sliver prepared in this careful manner is well straightened, clean and free from new and nits so that it corresponds'at this stage of the process to a high quallty combed material and can be spun immediately, without being subjected to a combing process, and consequently. it preserves substantiallyits curliness and elongation and forms a very voluminous yarn.

The essential advantage of this process consists While we have herein shown and described certain preferred embodiments of our invention,

we wishit to be understood that we do not confine ourselves to all the precise details herein set forth by way of illustration, as modification and variation may be made without departing from' the spirit of the invention or exceeding the scope of the appended claims.

More particularly, we wish to make it clear that our invention is not' restricted to the special construction of the card portion which has been hereinbefore described. Fundamentally we use flats of normal type of :'covering havlngla strong combing or carding action, combined and alternating with flats having less combing or carding and more stroking or fibre guiding action, due to their books or pins or other members retaining the fibre material less intensively.

The coverings .of the flats are preferably constructed as hereinbefore described but they may be modified in any suitable manner provided only that aneifect similar to that which has been hereinbefore-described is attained.

We claim:

1.'In a machine for treating textile fibres, in combinatiom-a rotatable'main cylinder, means for feeding staple fibres thereto, a roller card portion comprising worker and clearer rollers cooperating with the cylinder to effect cardin of staple fibres fed thereto and a flat card portion comprising a card chain having flats spaced from each other at iintervals corresponding ,at least to the maximum length of fibre and covered with inclined pins, and flats intermediate said first flats. and covered with pins whose free end portionsare at substantially right angles to their base.

2. In a machine for treating fibres,-a main cylinder, worker and clearer rollers in co-acting relation with said main cylinder, a card chain following said rollers and having spaced first flats covered with inclined pins, andsecond flats between said first flats and covered with pins whose free end portions are. at substantially right angles to said second flats, a doffer following-said main cylinder and, following said doffer, means adapt ed to condense the web of flbre's to a sliver.

3; In a machine for treating fibres, a shell feeder plate, a taker-in, a main cyllnder,-worke r and clearer rollers in co-acting relation with said main cylinder, a cardchain following said rollers and having-spaced'first flats covered with inclined pins-andsecond flats between said first flats and covered with pins'whose free end portions are at substantially right angles to said sec- 0nd flats, a doflfer' following said main cylinder and, following said doifer, means adapted to condense the web of fibres to a sliver. I

4. In a. machine for treating fibres, a feed lattice, at least one pair of fluted. rollers, a shell feeder plate, a licker-in, a main cylinder, worker and clearer rollers in co-acting relation with said main cylinder, a card chain following said rollers and having spaced first flats covered with inclined pins and second flats between said first flats and covered with pins whose free end portionsare at substantially right angles to said second flats, a dofier following said main cylinder'and, following said doffer, means adapted to condense the webof fibres to a sliver.

5'. In a machine for treating fibres, a card chain having spaced first flats covered with pins whose free end portions are inclined obliquely thereto, and second flats arranged between the first fiats and covered with pins whose free end portions extend at substantially right angles to the surface of said second flats.

6. A card chain as set forth in claim 5, wherein the distance between; consecutive first fiat; is greater than the average length of the fibres worked upon. L

7. In a machine for treating fibres, in combination, a carding cylinder, a roller card portion comprising worker and clearer rollers cooperating with the cylinder, means for feeding fibres to said cylinder immediately in advance of said r011- ers, and a fiat card portion comprising a traveling card chain likewise cooperating with the cylinder and arranged to receive the web of fibres which with pins of difierent inclination and arranged to receive the web of fibres conveyed from the worker and clearer rollers. J

' L'UDWIGBCHLIPP.

MAX BOE'I'ILE.

- chain havingalternately arranged flats provided 10

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