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Publication numberUS3633352 A
Publication typeGrant
Publication dateJan 11, 1972
Filing dateDec 19, 1969
Priority dateDec 19, 1969
Publication numberUS 3633352 A, US 3633352A, US-A-3633352, US3633352 A, US3633352A
InventorsThomas E Marriner
Original AssigneeThomas E Marriner
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Splicer for nonwoven fibers
US 3633352 A
Abstract
Apparatus having opposable, relatively oscillating surfaces between which the overlapped ends of bundles of fiber strands or slivers are placed for splicing. The splice produced is characterized by the tangling of generally parallel fibers resulting from the action of a component of the oscillation transverse to their direction, and also from the presence of crimp in the fibers.
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Description  (OCR text may contain errors)

United States Patent [56] References Cited UNITED STATES PATENTS 1/1936 Cavanagh.....................

[72] Inventor Thomas E. Marriner RFD, Tyngsboro, Mass. 01879 [21] AppLNo. 886,583

2,449,349 9/1948 Waugh et al.. 1; 3,492,181 1/1970 Riseley.........................

Primary Examiner- Donald E. Watkins fittorney-Kenway, Jenney & Hildreth [22] Filed Dec. 19,1969 [45] Patented Jan.l1,

[54] SPLICER FOR NONWOVEN FIBERS 9 Claims, 3 Drawing Figs. [52] ABSTRACT: Apparatus having opposable, relatively oscillat- F. l akl aw SMRS P m n yeml b T te 0 .rfm 01 I. kfimm emrnf d oo e P Wmhma f o h c I n D 6 838 v f Q a-mom l h mfi 6 u e amm SdShC .cn v Ca S fin [SC- m U US1- f f e en mr- O .lri fidu 57/22 ...B65h 69/06, B65h 69/08 57/22, 23,

[51] Int.Cl...................

[50] FieldofSearch..................

' -ofcrin1p in the fibers.

PATENIEU JAM I I972 FIG. 3

INVENTOR THOMAS E. M RINER SPLICER FOR NONWOVEN FIBERS BACKGROUND OF THE INVENTION The field of this invention generally relates to the manufacture of yarn. More particularly, it relates to means for splicing or hitching together the nonwoven, nontwisted fibers, strands or slivers as they pass through the stages of the manufacturing process from the preliminary state (the greasy state in the case of wool, for example) to the finished yarn.

The fibers, strands or slivers, which pass through a sequence of carding machines, fiber drafting and combing machines, frequently break at various points in the sequence, which necessitates constant attendance by machine operators. Several methods for splicing have been employed but have been found objectionable for various reasons. One method is to tie the ends to be spliced with a knot. While a knot has sufficient strength to carry the fibers into a fiber-drafting machine, also called a pin drafter or a gill box, it cannot pass successfully through the machine and has a tendency to pull out its pins or otherwise cause machine damage. A further objection is that a knot introduces a defect in the form of neps in the fibers that may require removal at a later stage of manufacture. Machines of this type are generally inoperative with most kinds of knots.

Another splicing method requires the use of an adhesive to join the fiber ends. This also tends to result in defects and has other disadvantages.

A third method, which can be performed successfully, is to overlap and hold together the leading and trailing ends of the fibers to be joined, and to hand-feed them as they enter the next processing machine in the sequence. However, this method is not reliable because it may result in machine damage when incorrect practices are employed in overlapping the strands.

Fibers of wool, for example, have a diameter generally between 18 and 34 microns, and also possess a natural crimp. Ideally, such fibers should be spliced by a straight-line tangle that is by overlapping them while maintaining them in closely parallel positions, causing them to tangle as a result of their close proximity and the mutual engagement of their crimps. This should be accomplished with minimum fiber breakage and minimum formation of neps or conditions leading to an increase in the nep count. The strength of the splice should be adequate to carry the fibers into the next succeeding machine. Moreover, the splicing should be accomplished with speed to avoid a machine shutdown.

Similar criteria apply to the splicing of other kinds of fibers, either natural or synthetic, and whether the crimps are naturally occurring or synthetically produced.

The methods hitherto commonly used in splicing are heavily dependent on manual steps and fail to satisfy many of the foregoing criteria.

SUMMARY OF THE INVENTION This invention provides novel apparatus capable of satisfying the criteria for ideal splices on natural and synthetic fibers, strands and slivers which for purposes of the following description are referred to simply as fiber bundles. This apparatus is preferably hand-held and includes a pair of opposable pressure plates and drive means for causing relative oscillation of the plate surfaces. The fiber bundles to be spliced are overlapped and placed between the plates which apply pressure to the fibers transversely to their direction of extent while providing an appreciable component of oscillatory movement that is perpendicular to both the direction of the fibers and the direction of the applied pressure.

This apparatus rapidly performs a splice of sufficient strength for the above purposes, without making knots or significantly increasing the nep count. Any defects produced by the machine are generally of such nature that they can be gilled out in one pass through a fiber-drafting machine. Splicing may be performed without stopping the machine, thereby tending to facilitate a more fully automatic manufacturing process.

This apparatus takes full advantage of any available crimp in the fibers and also any lateral surface protuberances, irregularities and discontinuities thereon, such as the serrations on wool fibers, whether naturally occurring or artifical, to give strength to the splice. It also does not break the fibers.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a side elevation of a preferred embodiment of the invention of the open position.

FIG. 2 is a similar elevation showing the same embodiment in the closed position.

FIG. 3 is a detail elevation showing the positions of the fibers to be spliced in the closed machine.

DESCRIPTION OF THE PREFERRED EMBODIMENT The apparatus of FIGS. 1 and 2 is supported on a metal frame 12 which may be hand held by a handle 14 attached thereto by a bolt and nut 16. The frame may be fabricated in any convenient manner and may comprise one or more parts fastened together by welding or in any other convenient way. The bottom of the frame comprises a rectangular baseplate 18 at one end of which is an integral backplate 20 for fastening the handle, braced by side gussets 22. These latter have holes for pivotally attaching a pair of arms 24 by means of pins 26.

The other ends of the arms 24 are pivotally attached at 28 to a bracket 30 which is rigidly attached by bolts 32 to a motor housing 34. The same bolts 32 fasten a thumb plate 35 to the housing 34. The housing internally supports an electrical motor (not shown) having an armature shaft 36 with an eccentrically positioned, headed drive pin extension 38 freely turnable in a hole in a rectangular upper plate 40. The upper plate is thereby supported on the shaft 36 and is driven eccentrically by it. The upper plate is restrained from rotation as a whole, while every point of its surface is caused to describe a circular path of the identical small diameter. It has been found that a diameter of about oneor two-tenths of an inch is successful, for example. The housing, motor and plate may be constructed in substantially the same manner as the corresponding parts of an orbital sanding machine of the type now in common use for furniture finishing and the like. A power cord 42 extends to an electrical outlet. An off-on switch 44 has connections extending from the housing 34, and is fastened to the backplate 20 and completes a circuit from the cord 42 to the motor.

The bracket 30 has two limit pins 46 projecting from it on each side in position to limit the pivotal movement of the arms 24 relative to the housing 34. As shown in FIG. I, the pins are located so as to insure a sufficient wide opening for easy insertion of the overlapped ends of fiber bundles 48 and 50 to be spliced when the thumb plate 35 is depressed. As shown in FIG. 2, the pins are also located so as to permit self-leveling of the upper plate 40 on the baseplate 18 when the thumb plate is released.

The base and upper plates are preferably both covered with sheets of sandpaper 52 and 54, respectively (FIG. 3), either clamped by conventional means or adhesively attached to their respective surfaces. Sandpaper of 60 grit has been found satisfactory. In the alternative other coverings may be employed, such as card clothing, felt pads, rubber or plastic material, leather, steel or combinations of the foregoing or similar materials, with flat surfaces or with ridged or otherwise textured surfaces.

In operation, the machine is carried to the location where a splice is required, the thumb plate 35 is depressed to move the parts to the open position shown in FIG. 1, the overlapped, parallel fiber bundles 48 and 50 are manually inserted in the position shown with the overlapping region entirely within the machine as shown in FIG. 3, and the machine is closed to the position shown in FIG. 2. In this position, the pressure of the upper plate is brought to bear directly upon the overlapped fiber bundles and is produced by the weight of the pivoted parts, principally including the housing 34 and the motor. By the use of auxiliary springs (not shown) this gravitational pressure may be either augmented or diminished in order to produce the optimum net pressure to hold the fibers close together while the machine is operating.

Next, the motor switch 44 is turned on, causing the upper plate 40 to oscillate at a substantial rate, thereby shaking or rubbing the fibers together. In normal use, the machine is left on for a few seconds only, after which it is shut off and opened to remove the completed splice 56 (FIG. 2). The splice has sufficient strength for the purpose indicated above as a result of the fact that a component of the oscillation, produced in the fibers by their frictional engagement with the upper and baseplates, is normal to their direction of extent, in addition to being normal to the direction of applied pressure.

It has been noted that various factors have an influence on the character and strength of the splice obtained. One of these is the speed of oscillation. Experiments were conducted on machines ranging in speed from 4,200 rpm. to 9,000 r.p.m. with good results. In general, slower speeds resulted in an increase in the time of operation required for an acceptable splice. The machines used in successful tests had diameters of oscillation ranging from about 0. 109 inch to about 0.181 inch.

A further influence on the time required for splicing is the grade of the fiber bundles being spliced. In general, woolen card slivers required more time than strands of wool top, and the finer diameter grades of wool required less time. As typical examples, for a 66's grade wool and using a 4,200-r.p.m. machine, top required about 5 seconds as against about seconds for a card sliver. For 80s grade wool, top required about 2 seconds and for 50s grade wool, top required about seconds.

The pressure on the fibers is also a factor as noted above. It should be sufficient to hold the fibers in intimate contact but not so great as to interfere with vigorous partially random fiber agitation laterally to their direction of extent.

The extent of the overlap of the fiber bundles has a bearing on the strength of the splice when the overlap is small. For example, the strength of a typical splice increases substantially with increasing overlap of wool slivers, up to about 3 inches. Above this figure, increasing overlap does not significantly increase strength and is therefore usually unnecessary.

The moisture content of the fibers has also been shown to influence the strength of the splice and the time required to make it. This is particularly true in the case of wool, with which it has been shown that fibers with about 15 percent moisture content will splice substantially more readily than fibers with about 5 percent moisture content. To increase the moisture content, a variety of means may be readily employed. These means may be integral with or fastened to the machine of FIGS. 1 and 2, or they may be entirely separate. They include, for example, various dispensers for water in the form of drops, spray, vapor or steam jets, such as those used on domestic steam irons, and such means may be fitted with dials to control the dispensers as a function of the grade of wool being processed. The moisture may impinge directly on the fibers in the overlapped region when the device is open as in FIG. 1, or it may reach the fibers when the device is in closed position through suitable holes in the opposing plates.

In a similar manner, provision may be made to introduce heat to produce an optimum condition for forming the splices.

Various modifications may be made in the foregoing apparatus, if desired. For example, while a circular orbital or two-dimensional type of motion is used in this embodiment, a straight reciprocal or one-dimensional motion may also be employed, in which case the dimension in which the motion occurs lies transverse or normal to the direction of extent of the fibers. Also, while only the upper plate reciprocates in this embodiment, both plates may be made to reciprocate but in opposite directions or out of phase with one another. Further, the surfaces of the plates may be congruently curved.

While the device shown is electrically driven, other kinds of power may be employed in the alternative. For example, compressed air or hydraulics may be used to drive the motor, this form of power being readily available in or near the processing machines in present use.

The foregoing machine and process may be used to splice such diverse fibers as wool and synthetics, including Dacron, nylon, rayon, polypropylenes and polyesters of the type used in yarns.

I claim: I

1. Apparatus for splicing fiber bundles, including a pair of plate members,

means for separating and closing together opposed surfaces of said plate members, and

means for oscillating said plate members relatively in the plane of said opposed surfaces including a motor having a shaft with means for oscillating one plate relatively to the other.

2. The combination of claim 1, with means for urging the plate members together while the means for oscillating are operative.

3. The combination of claim 1, in which the plate members are generally flat.

4. The combination of claim 1, in which the plate members are pivotally attached.

5. The combination of claim 1, in which the plate members have frictional means on said opposed surfaces thereof.

6. The combination of claim 1, in which the plate members have abrasive sheets attached to said opposed surfaces thereof.

7. The combination of claim 1, in which the shaft drives the said one plate eccentrically.

8. The combination of claim 7, in which every point in the driven plate describes a path congruent with that of every other point therein.

9. The combination of claim 1, in which a linkage connects the plates.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2028144 *Apr 23, 1931Jan 21, 1936John F CavanaghThread splicing device
US2449349 *Jul 15, 1947Sep 14, 1948Wauregan Mills IncDevice for connecting yarn ends
US3492181 *Mar 25, 1966Jan 27, 1970Edwin RiseleyJointing of thermoplastic yarn
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4125989 *May 2, 1977Nov 21, 1978Fritz StahleckerMethod and apparatus for treatment of pieced places in a yarn
US4355498 *Jun 11, 1981Oct 26, 1982Mesdan S.P.A.Device for splicing textile yarns with the aid of compressed air
US4361003 *Jun 9, 1981Nov 30, 1982Mesdan S.P.A.Device for splicing textile yarns with the aid of compressed air
US4577459 *Nov 3, 1982Mar 25, 1986Officine Savio S.P.A.Process and apparatus for mechanically splicing yarns
US4583356 *Nov 3, 1982Apr 22, 1986Officine Savio S.P.A.Splicer device to disassemble and recompose yarn mechanically
US4637205 *Sep 17, 1984Jan 20, 1987Officine Savio SpaSplicer device for the mechanical splicing of textile yarns
US4720966 *Nov 4, 1982Jan 26, 1988Officine Savio S.P.A.Procedure for splicing yarns
US4798045 *Oct 7, 1987Jan 17, 1989Teresio BottarelliProcess for splicing fibers in strips, and a machine for feeding a textile machine incorporating such a process
US4947635 *Oct 8, 1987Aug 14, 1990Officine Savio S.P.A.Yarn splice
US5626512 *May 4, 1995May 6, 1997Minnesota Mining And Manufacturing CompanyScouring articles and process for the manufacture of same
US6360519Feb 13, 2001Mar 26, 2002American Linc CorporationApparatus and methods for splicing silvers of yarn during yarn formation and processing
US6733608Mar 30, 1998May 11, 2004Kimberly-Clark Worldwide, Inc.Methods for making and processing high bulk tissue webs
US6737141Jul 9, 2002May 18, 2004Kimberly-Clark Worldwide, Inc.Usable splice for a stabilized absorbent and method for making the splice
US6863945Dec 31, 2001Mar 8, 2005Kimberly-Clark Worldwide, Inc.Usable splice for a stabilized absorbent
US7150077 *Jan 15, 2002Dec 19, 2006American Linc CorporationApparatus and method for splicing sliver of yarn during yarn formation and processing
US7273646Jan 30, 2004Sep 25, 2007Kimberly-Clark Worldwide, Inc.Personal care absorbent article having spliced absorbent material
US7311792Jan 30, 2004Dec 25, 2007Kimberly-Clark Worldwide, Inc.Process for making a splice for a stabilized absorbent
US20040182498 *Jan 30, 2004Sep 23, 2004Kimberly-Clark Worldwide, Inc.Process for making a splice for a stabilized absorbent
US20040185214 *Jan 30, 2004Sep 23, 2004Kimberly-Clark Worldwide, Inc.Personal care absorbent article having spliced absorbent material
US20060150373 *Jan 15, 2002Jul 13, 2006Hoover Donald LApparatus and method for splicing sliver of yarn during yarn formation and processing
EP0039609A1 *May 5, 1981Nov 11, 1981Officine Savio S.p.A.Method and apparatus for splicing two twisted staple yarns
WO1998046509A1 *Apr 14, 1998Oct 22, 1998Kimberly-Clark Worldwide, Inc.Methods for making and processing high bulk tissue webs
Classifications
U.S. Classification57/22
International ClassificationB65H69/06, D04H1/44
Cooperative ClassificationB65H2701/311, B65H2402/414, D04H1/44, B65H69/06
European ClassificationB65H69/06, D04H1/44