US2319491A - Sheet warp vibrator - Google Patents

Description

May 18, 1943 R. R, coNE 2,319,491

SHEET wARP VIBRATOR v Filed July 9, 1942 2 Sheets-Sheet l .1|IllIIIlIIIIIIIIIIIIIIII'IIH"'- Bnnentor.'

RALPH E. C UNE Gttorneg 5 May 18, 1943 R. R. coNE SHEET WARP VIBRATOR Filed Jul'y 9, 1942 2 sheets-sheet 2 Summer. EAL/2H E. CONE Cittorneg 5 Patented May 18, 1943 SHEET' WARP VIBRATOR Ralph R. Cone, Gastonia, N. C., assignor to Threads, Incorporated, Gastonia, N. C., a corporation of North Carolina Application July 9, 1942, Serial N0. 450,296

2 Claims.

This invention relates to the treatment of warp yarn and more especially to an apparatus wherein the individual ends of the warp are maintained in a separated position while the same are traveling from one point to another.

During processing, cotton yarns pass through various solutions and are subject to many treatments which tend to cause the adjacent ends in the warp to stick or adhere to each other. As a means for separating these ends, it is a conventional practice to pass the warp through a reed, which reed comprises a plurality of spaced splits between which the ends travel. When adjacent yarn ends are adhesively secured together for a considerable distance and are caused to pass on opposed sides of a split in a reed, the ends will often break before becoming separated, and thereby make it necessary to repair the broken ends.

As another example of the conventional practice, let us consider the processing of yarn for thread. In this process the gassing, mercerizing,

dyeing, drying, glazing, and waxing are all handled in warp form. In many instances each warp has 378 ends, and each end is 6,000 yards long. After the mercerizing, drying, dyeing, glazing, and waxing are completed, it is usually necessary to perform a quilling operation which separates the ends of the warp by a reed and winds each individual end on a separate package.

Sometimes, as heretofore stated, difficulties are encountered in this quilling operation because the above-mentioned operations tend to cause the yarn ends to stick together so that they do not easily separate when passing through the reed. Heretofore, in order to overcome this sticking or adhering of the adjacent ends, the operator or quiller has been accustomed to rake or vibrate the warp ahead of the reed by taking an empty quill or stick and moving the same, back and forth, transversely of the moving warp. Usually this warp is about 12 feet in width, and consequently, it is impossible for one operator to rake the entire width of the warp. As a result, some of the adhered ends break while passing through the reed.

It is an object of this invention to provide an automatic warp vibrator for separating the individual yarnends prior to the same passing through the reed.

It is another object of this invention to provide a transverse rake having a plurality of flexible teeth therein, which teeth are adapted to be disposed adjacent the moving warp and which,

-when moved transversely thereof, will tend to vibrate the individual ends and maintain them in a separated state.

It is another object of this invention to provide a toothed rake of the class described, with means for swinging the rake in an arc so that the individual teeth will penetrate the warp at a constantly varying depth. During this penetration, the ends of the teeth move from a position completely above the warp to the point of maximum penetration. Therefore, each tooth strums the individual ends, releasing the same approximately one at a time as it moves upwardly from its lowermost position to its uppermost position.

It is another object of this invention to provide a yarn vibrating means of the class described having means for adjusting the height of the vibrating means relative to the warp, and also having means for adjusting the amount of transverse arcuate travel of the vibrating means.

Some ofthe objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings in which:

Figure 1 is a side elevation of a textile quiller with my improved warp vibrating apparatus associated therewith;

Figure 2 is an enlarged sectional detail ViewA taken along the line 2-2 in Figure l illustrating the stroke adjustment feature;

Figure 3 is a transverse vertical sectional view taken along the line 3-3 in Figure 1, showing the rake or yarn vibrating means in lowermost bold Vline position and uppermost dotted line position;

Figure 4 is a sectional view taken along the line 4-4 in Figure 3 showing a detail of the connection between the rake and its supporting means;

Figure 5 is an exploded isometric view of one end of the rake and the supporting means therefor;

Figure 6 is a sectional view taken along the line 6-6 in Figure 5, showing the means employed for mounting eacn of the flexible yarn lingers in the rake. A

Referring more particularly to the drawings, the numerals I 0 and II denote the side frames of a quiller, which quiller has conventional drums I2, drive belts I 4, whorls I5, and quills I6, said quills being adapted to have yarn ends I'I wound thereon. This quiller also has a conventional reed I9, a waxing roller 20, and a guide roller 2|.

In the processing of yarn it is usually in a warp form prior to passing through this machine. For the sake of clearness, this warp will be broadly designated by the reference character 22. As the warp moves from left to right in the direction of the arrow in Figure 1, it passes through reed I9, over waxing roll 20, over a guide roll 2l, and then downwardly onto quills I6. When the warp leaves the guide roller, the ends I1 follow a divergent path to individual quills I6. As the drums I2 are rotated, the individual yarn quills I6 are likewise rotated through the medium of belts I4 and whorls I 5 to thereby wind the individual ends I1 there around.

Very often, the ends I'I of the Warp 22 become adhered to each other and are not easily separated by the splits in the reed I9. For this reason it is necessary to constantly strum or vibrate the individual ends I1 of the moving warp so that the same will be maintained in a separated position, thus permitting the ends to easily pass through the reed I9. Figure 3 shows the position of the individual ends I1 in warp 22 prior to the same reaching the reed I9. This warp will vary in width, and is usually too wide for one operator to manually vibrate all of the `ends and prevent some of the adhered ends from reaching the reed I9 in an unseparated condition. In order to insure that all of the ends I1 in the warp 22 will be constantly vibrated, uniformly -and automatically, a transversely disposed rake,

broadly designated by the reference character 26, has been provided. This rake 26 comprises a horizontally disposed bar 21, which bar is rectangular in cross-section and has its lower edge disposed substantially in parallel relation to the warp 22. Also this bar is positioned transversely of the warp and has a plurality of flexible loop teeth 29 projecting downwardly from the lower -i 29, there being a support 29 adjacent each side of the nger or tooth 2S for the purpose of supporting that portion of the finger immediately below bar 21 while thev finger is deflected during its movement across the warp. The doubled ends of the finger 28, together with the two associated reinforcing supports 29, are secured in the bar 21 by any suitable means such as semi-circular dowel pins Sil. (See Figures 5 and 6.) rIhe supports 29 are extended downwardly for a substantiai distance below the bar 21 alongside the opposed sides of the looped finger 28 and consequently, as the finger 28 is deflected, rst in one direction and then in another as it moves transversely of the warp, the finger will be caused to bend about a longer radius and therefore, will not become fatigued as quickly as would be the case were the reinforcing splints 29 not provided.

It can be seen by observing Figure 3 that these fingers are spaced along the bar 2,1 so that the lower ends thereof will penetrate the warp at varying depths while being moved from bold to dotted line positions. It is to be understood that the dotted line position of the rake 26 illustrates the position at one end of thefrake swing, whereas the bold line position illustratesl its midway ofi the swing. The rake will swing as far to the left of the warp 22 in Figure 3 when itoscillates to the left as the rake is shown in dotted line position to the right.

Each end of the bar 21 has a metallic plate 35 secured thereto by any suitable means such as bolts 26. The plate 35 and the end of the bar 2 1 have a hole 31 therein, which hole is penetrated by a collar 38, said collar having integral therewith a flange 39. The collar 38 is provided with a hole 40 which receives a bolt 4I when the parts are in an erected position. By observing Figure 4 it can be seen that the restricted portion of collar 3B extends the entire length of hole 31 and thus penetrates the bar 21 and the plate 35. The small end of collar 38 is adapted to fit against a hanger 43, and is held in position by means of bolt 4I, wing nut 5i) and a washer 53, said bolt being adapted to penetrate a slot 5I in the hanger 43. This type of construction permits each end of the bar 21 to be pivotally secured to the lower ends of hangers 43 without any binding between the face of the hangers and the face of plates 35,

'or without any binding between the flange portions 39 and the faces cf the bar 21.

This construction also permits the elevation of the rake 26 to be varied to suit operating conditions. For example, if it is desired that the fingers 26 penetrate the warp 22 a very slight amount, the wing nut 59 may be loosened and the rake 25 raised accordingly; or if desired to entirely lift the rake out of Contact with the warp to a non-obstructing position, this may be done also by manipulating the wing nut and moving the rake 25 to the upper extremities ofv slots 5I.

The upper ends of hangers 43 are pivotally secured as at 5ft and 55 to brackets 56 and 51 respectively, said brackets 56 and 51 being supported by quiller frames l0 and II. In order to cause the hangers 53 to oscillate `about pivots 54 and 55, it is necessary to provide scme suitable means such as shown in Figures 2 and 3. The shaft of pivot 5ft extends through the upper end of bracket 55, and the projecting end of this shaft has a laterally extending lever 59 keyed thereon.

Lever 59 has a slot 56 therein which is penevtrated by a bolt 6I', said bolt having a head portion 62 abutting one face of the lever 59 and a washer 63 abutting the opposite face. A nut 64 is threadably secured uponl the end of the bolt 6I which projects beyond the washer, and thus the bolt is adjustably secured in the slot 6i.

Bolt 6I also has a. larger projecting portion 66 extending from the head portion 62 and laway from the lever 53. Around this portion 66 a fitting 61 is mounted, said tting extending downwardly and having pivotally secured thereto as at 69 the upper end of a link 19. It is seen that the longitudinal axis of portion 66 is disposed substantially at right angles tothe longitudinal vaxis of pivot 69, and therefore, a universal connection is provided between lever 59 and link 19.

The lower end ofv link 1'0 has a tting' 1I secured thereto. Pivotally secured to this link 1I asat 12 is a second fitting 13, said fittingy E3-being pivoted as at 14' to a sprocket-wheel 15'. Likewise, the longitudinal axes of pivots 12 and 14' are disposed substantially at right angles to each other, therebyV providing a second universal connection. Especial attention is' called to the fact that the pivot It is eccentrically" located relative tothe stud shaft 16, which shaft serves'as -an axis of rotation. for sprocket .15. Figure 3 shows the Imanner in. which stud shaft i6 is attached to the quiller framel I5.

Sprocket I5 has ai chainr 158 mounted thereon,

'and thisfch'ain isi mountedup'on' another sprocket 'I9 which is driven by one of the drums I2 of the quilling machine. When the machine is in operation, the drums I2 are driven by any suitable source of power, not shown, to cause the quills I6 to rotate, and thus draw the warp ends I'I of warp 22 downwardly onto individual packages. During this winding the warp 22 is passing eneath the transversely disposed rake 26, through reed I9, over waxingr roll 2S, and over guide roll ZI. The rotation of sprocket 'I9 will, in turn, impart rotation 'to sprocket 'I5 through the medium of chain i8. It is therefore seen that as sprocket 'I5 rotates, the link 'I will be reciprocated up and down, thereby causing the hangers 43 to oscillate about pivots 54 and 55. This oscillation of hangers 33 will cause the rake 26 to swing back and forth and thus cause the ngers 28 to strum or vibrate the individual yarn ends IT to separate any ends Il which may be stuck together.

Figure 3 clearly illustrates by arrows the approximate path of travel of the lower ends of iingers 23. In the bold line positions, the lingers 28 are penetrating the Warp 22, the maximum amount for this particular adjustment of the rake. When the rake swings to right-hand dotted line position, it follows the arcuate path of the arrows and, at the same time, gradually rises out of the warp, releasing the warp ends one at a time. When the rake reaches the end of its stroke, all of the ends have been released by each tooth 28, at which time the lower end of each tooth is disposed above the Warp. During the swing in the opposite direction, the teeth gradually move downwardly to bold line position through the warp 22, and then the teeth again gradually rise until they assume an elevation at the left of the warp substantially the same as shown in dotted lines to the right.

It is therefore seen that I have provided a simple and ecient Vautomatic: means for maintaining the ends of yarn in separated or unattached positions. Also means have been provided whereby the length of the stroke and the amount of penetration of the warp can be regulated as desired. By providing these :Ilexible iingers 28, the vibration of the warp can be effected without any material damage thereto.

A suitable board or cover is provided directly beneath the warp 22 and rake 26 so that the packages of yarn therebeneath will be shielded from dirt, dust, and lint which. falls from the Warp.

In the drawings and specification, there has been set forth a preferred embodiment of the invention and although specific terms are employed, they are used in a generic and descriptive sense only and not for the purposes of limitation, the scope of the invention being dened in the claims.

I claim:

l. Apparatus for separating the ends of a sheet of moving Warp comprising a framework, a transversely disposed rake having teeth therein for penetrating said warp, a pair of spa-ced levers pivotally secured vto said rake, said levers being pivotally secured to said framework, means for adjusting the positions of said rake pivots on said levers to thereby vary the amount of warp penetration by said teeth, means connected to one of the levers for oscillating said levers about the framework pivots to thereby cause each tooth in said rake to follow an arcuate path as it oscillates transversely of the warp and thus penetrate the warp at constantly varying depths, and means for varying the length of stroke of said lever oscillating means.

2. Apparatus for vibrating or strumming the ends of a sheet of moving warp to separate the ends from each other, comprising a'framework, a bar disposed above the sheet of Warp and having a plurality of Warp engaging elements therein, a pair of links having their upper ends pivoted in. the framework and having their lower ends connected to the bar for swingably supporting the same, means imparting swinging movement to one of the links for simultaneously moving the bar transversely and vertically of the Warpto cause the elements to depress and move the ends laterally and to release the ends, each of said elements having a rounded end portion to cause the ends to roll over and past the elements as the elements move transversely and vertically of the ends.

RALPH R. CONE.

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