US1771656A - Textile machine - Google Patents

Description

July 29, 1930. E. o. ROTE 1,771,656

TEXTILE MACHINE Filed June l, 1927 22 I7 2s 17 loI 28 3o 3| la um I woemtoz ZM @t 351% @11m/MW iw @L v M Y Patented luly 29, 1.930

' UNIT-r5.1jf STATES PATENT- v EDWIN fo. nongOFNnw BEnTjOnD, MASSACHUSETTS, AssIG'NOR To NTTIONALk SPUN u SILK co., INC., or NEW BEDFORD, MASSACHUSETTS, A CORPORATION `or MASSA- y 1 onosnT'Ts TEXTILE MACHINE Applicatioiiy flied June 1, 1927. serial N. 195,615.`

`Thisinventitm relates generally to textile spinning machines and has particular reference to mechanisms for forming into a roving the sliversand the likecoming from carding, combing and similar machines.

One object of the invention is to provide a mechanism which will serve satisfactorily to gather the material coming from carding, combing and similar machines into a roving which is substantially twistless, but in which the iibers have suliicient mutual adhesion to make possible subsequent handling, drawing and spinning operations without the fibers separating or pulling apart. This is effected by giving the material a falsetwist as it is being converted into a roving without retaining any appreciable lpart of the twist in the roving. u y

In the present embodiment the invention is shown applied to or embodied in a rotary trumpet such as has heretofore been used to gather a ribbon-like sliver into a roving. The rotary movement ofthe prior trumpets is largely effected to minimize and distribute wear upon the interior of the trumpet by the material drawn through a passage extending axially through the trumpet. Any twist given to the material by the rotary movement of the prior trumpetsis'more or less acci` dental and is always so slight as to have no function in the formation of the roving. In applying the present'invention to the prior trumpets, the trumpet is so constructed that the material, in going through the trumpet, passes through or over a portion which is eccentric to the axis of the trumpet.

The material is drawn from the delivery devices through the trumpet and eccentric portion by a pair of rollers. As a result of the construction of the new trumpet, the material vbetween the delivery devices and the rollers is given a twist in opposite directions at either side of the eccentric portion. However, the rollers are spaced far enough from the outlet end of the trumpet and are driven at such a speed with reference to the rotations of the trumpet that one twist is offset by the other before the twist can be retained by the rollers and the roving therefore enters the nip of the rollers in untwisted condition.

The false or temporary twist serves, however, to Vcompact Y the roving and cause better mutual adhesion of the bers,so that iii-subsequent Operations the roving may be handled as safely as if it had a twist. The untwisted OFFICE i i condition is, however, much better forfollowing operations, such as drawing, particularly if thematerial is composed of long fine fibers. With the `foregoing 'and other Objects in view, the invention consists in a novel construction and arrangement of parts, the novel featuresv of which are pointed out in the appended claim, and a preferred embodiment of which is hereinafter described with reference to the drawings `accompanying and forming a part of this specification. In said drawings l Fig. 1 is a top plan view of the improved trumpet and some ofthe parts supporting and associated with it. y

Fig. 2 is a section on the line 2 2 of Fig. l. Fig. 3 is avsection on the line 3*?) of Fig. 2. In theV construction illustrated in the drawings the rotary trumpet 10 is supported by a suitable frame, such as the frame 11, having an elongated'slot 12 to accommodate a bolt or similar device wherebythe frame may be adjustably secured toa carding or similar machina Theframe 11 is formed as at 13 and 14 to produce the lower halves of journals or bearings to acconnnodate the trumpet 10. The upper halves of the journals orbear- `ings are carried Vby plates or caps 15 and 16 secured by screws 17 to extensions 18 on the lowerhalves of the bearing. Y u Y The plates or capsl and 16 are provided with oil holes 19 and clamped between the plateslv and 16 and the extensions 18 are pieces 20 of Vflannel, or` other suitable material, extending `over the trumpet 10 and under the oil holes l19. This construction provides a wayof oiling the bearing for the trumpet which requires the use of very little oil and prevents the'oil spreading along the trumpet anddamaging the silk or other material passing through the trumpet. 1 Rollers 21 and 22 (Fig. 1) arethe delivery or `nip rollers of a carding vor combing machine, one of which may be connected by a belt 23 to suitable driving mechanism. The

nip rollers k2l and 22 deliver the combed or carded material 24 in the form of a ribbon- 1 like sliver in which the fibers are all substantially parallel. The material delivered by the rollers 21 and 22 is drawn into the enlarged end 25 of the trumpet lOrand a bore or passage 26 'extending axially Vof the trumpet and t-hen through a bore or passagean angle to the axis of the truinpet'from 'an inclined shoulder 30 on the periphery of the trumpet, and then into a short boreY 31fextending axially of the ltrumpet to the exit or delivery'end of the trumpet. After leavingV the trumpet the material enters the nip of rollers 34: and 35. Y

Secured to the ,trumpet 10 ris a vpulley 36 constructed to accommodate any suitable beltv or tape (not'rshown) connecting the Y trumpet to the driving mechanism. Y

The rollers 34 and 35 are respectively the usual drivenV roller and co-operating weight roller, although the rollers maybe geared together if desired.V The roller 34 is driven by any suitable connection to the driving mechanism of the machine to whichy the mechanism is applied, and preferably at a peripheral speed somewhat greater than the speed of the rollers 21 and 22., .This difference in speed is sufficient to produce a slight relative bodiments, all of which come within the scope of the following claim.

I claim:

In combination with a sliver delivering mechanism, a rotary trumpet having a portion of its peripheryy reduced to form shoulders oppositely inclined with respect to the axis of the trumpet and. an inclined passage leadingfrom each of the shouldersto a bore extending axially ofthe trumpet to the lend thereof, means for rotating the trumpet, and means comprising a pair of drivenrollers fordrawing the material through said bores and passages and over the reduced portion intermediate the outer ends of said shoulders while the trumpet is rotating and at a speed whichprevents retaining the twist in the material. f I.

VIn testimony whereof I hereto aiix my signature. Y Y Y EDWIN O. ROE.

or drawing movement of the fibers in the material in addition to pulling the material through the trumpet, therebyinsuring a uniform movementof the material. y

In the operation of the device, the rotations of the trumpet l0 will cause the eccentric portion 38` (Fig, 2) to give a twist in one r direction to the material at the right of that portion and a twist in the opposite direction to thematerial at the left of such portion.

This has the effect of compacting the material in the roving' and causing, greater mutual adhesion of the bers than would be the case if the material was drawn straight through a tubular interior in the trumpet. However, the speed of the rollers 34 and 35 with reference to the rotations of the trumpet is sufficient to cause the twist at the left of the eccentric portion 38to oiiset or release the twist Vat the rightbefore the rollerscan retain the twist so that the bers are again in parallelism when the roving enters the nip Y ofthe rollers 34 and 35.

lVhen starting'the machine, a iexible wire Vhaving a hook or eye on one end is inserted through the trumpet and the sliver pulled through and engagedwith the rollers 34: and 35.

From the foregoing it is apparent that while the embodiment shown anddescribed is admirably adapted to Vfulfill the purposes Y stated, the inventionis capable of various em-

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