US2783506A - Lint collecting apparatus for drawing frames - Google Patents

Description

March 5, 1957 c, DELLINGER 2,783,506

LINT COLLECTING APPARATUS FOR DRAWING FRAMES Filed Aug. 22, 1955 INVENTORI DAV": C.D-ELL1NG-R.

BY 6mm 4 m ATTORNEYS United States Patent LINT COLLECTING APPARATUS FOR DRAwm FRAMES David C. Dellinger, Gastonia, N. C., assignor to Gossett Machine Works, Inc, Gastonia, N. C., a corporation of North Carolina Application August 22, 1955, Serial No. 529,766

1 Claim. (Cl. 19*159) This invention relates to means for collecting lint on drawing frames and more particularly to means for preventing excessive build-up of lint and fly about the trumpet which directs sliver into a coiler mechanism disposed about a can in which the sliver is deposited. Heretofore, the passage of sliver through the trumpet has resulted in lint building up about the mouth of the trumpet to such an extent as to clog the trumpet, thus requiring repeated stoppage of the drawing frame to free the trumpet.

It is therefore the object of this invention to provide means on a drawing frame adjacent the trumpet which will collect the lint that has heretofore formed on the trumpet and thus prevent the lint from fouling the trumpet or sometimes going back into the sliver to form slubs and thick places.

It is another object of this invention to provide lint collecting means for a drawing frame which has a minimum of moving parts, may be economically manufactured and easily installed on an existing drawing frame, and which is easily removable and replaceable during operation of the drawing frame for removing accumulations of lint thereon.

Some of the 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 transverse sectional somewhat schematic view of a drawing frame showing the invention applied thereto;

Figure 2 is a top plan view of the right-hand portion of Figure 1;

Figure 3 is an enlarged isometric detail view, with parts broken away, of the left-hand portion of Figure 1;

Figure 4 is a vertical sectional view along the line 4-4 in Figure 2;

Figure 5 is a vertical sectional view and taken along the line 55 in Figure 2.

Referring more specifically to the drawings, it will be observed that the lint collecting means of the present invention is illustrated in association with a drawing frame having top rolls 10, 11, 12 and 13 and bottom rolls 15, 16, 17 and 18. The top and bottom rolls are mounted in suitable roll stands such as 20 supported by a beam 21 which has secured thereto brackets 22 for supporting coiling mechanisms, not shown, but the covers of which are indicated at 23. Each coiling mechanism is disposed above a can 24 into which sliver S is delivered by calender rolls 25 and 26 disposed beneath a suitable cover 27. The sliver S is fed to the calender rolls 25 and 26 through trumpets 31, each of which is supported adjacent the calender rolls 25 and 26 by a portion 29 of a trumpet holding mechanism 30 pivotally connected intermediate its ends to a pivot pin 32 connected to the drawing frame. The mechanism 36 includes a bar 33 which extends from the pivot point 32 in opposite direction from the trumpet 31 and has a weight W adjustably mounted thereon. The bar 33 has an extension 34 which extends toward the 2,783,506 Patented Mar. 5,1957

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trumpet 31 from its juncture with the bar 33 adjacent are pivot pin 32 and terminates in spaced relation thefefroiit against the lower surface of the portion 29"whereby up" ward movement of the portion 29 will cause mues i-sading downward movement of the bar 33 and weightW.

The trumpet holding mechanism is also'equipped with a feeler 35 which is movable upwardly when the can becomes too full to bear against a set screw 3611cpending from the portion 29 of the trumpet holding'ifiecl'i anism 30. Upward movement of the feeler 35 serves to raise the portion 29 and trumpet 31 and consequently lower the weight W and bar 33 to activate a stop motion mechanism, not shown, to stop the machine. The above described parts are conventional and illustrate an err vironrnental embodiment of my invention.

.It might be stated that several slivers S are fed through the same trumpet after passing the drawing rolls as is clearly shown in Figure 2.

Now, in the passing of the slivers S through the trumpet 31 lint from the slivers has a tendency to build up about the edge of the trumpet remote from the drawing rolls causing slubs and thick places and oftentimes fouling the trumpet. The present invention provides means for collecting lint to prevent the same from building up about the trumpet and also provides means for repeatedly removing lint from the collecting means without the necessity of stopping the machine. Said means comprises an elongated steel rod 40 extending the length of the drawing frame and rotatably and releasably connected to the cover 27 at spaced points by brackets or clips 42. The rod 40 has spaced reduced portions 43 engageable by clips 44 which prevent endwise movement of the rod 40.

The rod 40 is disposed adjacent the edges of the trumpets 31 remote from the drawing rolls where lint L normally accumulates, and it has been found that by so positioning and rotating the steel rod 40 lint L will be attracted thereto and collect thereon rather than accumulate about the trumpet 31.

Step-by-step rotation is imparted to the rod 40 by a ratchet mechanism operatively connected to the rod 40 and to an oscillating shaft 55, which shaft 55 is a conventional part of the stop motion mechanism on drawing frames of the type disclosed herein. The ratchet mechanism comprises a ratchet wheel 45 fixedly secured on the rod 40 and a pawl 46 pivotally mounted as at 43 adjacent one end between the legs of a U-shaped bracket 47, the free end of the pawl 46 being releasably engageable with the ratchet wheel 45. The end of the pawl 46 adjacent the pivot point 48 has a square end spaced closely adjacent the web of the bracket 47 whereby downward movement of the pawl is limited. Removal and replacement of the bar 40 is facilitated by limiting downward movement of the pawl 46.

The bracket 47 is threadedly connected to one end of a link 50 and secured by a lock nut 51. The other end of the link 50 is pivotally connected by a bolt 60 between depending lugs 57, 58 of a circular bracket 54 secured about the shaft 55' by a set screw 56. Oscillation of the shaft 55 causes the pawl 46 to engage successive elements of the ratchet wheel 45 to impart step-by-step rotation in one direction to the rod 40.

The legs of the bracket 47 rest upon the rod'40 adjacent opposite sides of the ratchet wheel 45 and thus serve to support one end of the link 50 which is otherwise unsupported except by the bracket 54 on the oscillating shaft 55.

During operation of the machine, the lint L from slivers S accumulates on the rotating rod 40 and forms into clumps and when these clumps have reached certain proportions, the rod 40 can be quickly removed from the brackets 42, 44 by merely picking up the U-shaped bracket 47 to disengage the pawl 46 from the ratchet wheel 45. The, bunches of lint L may then be wiped from the rod 40 and the rod 40 again installed.

In the drawing 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 purposes of limitation, the scope of the invention being defined in the claim.

, I claim:

In a drawing frame having drafting rolls, calender rolls, acoiling mechanism and a trumpet disposed between said drafting rolls and calender rolls through which sliver is fed to the calender rolls, the combination of a lint collecting member for preventing lint from accumulating about said trumpet, said lint collecting member comprising a rod connected to the drawing frame adjacent the upper edge of the trumpet remote from the drafting rolls, bearing brackets fixed on said drawing frame and said rod having spaced reduced portions thereon releasably on said rod, an oscillating shaft on said drawing frame, a rigid link pivotally connected at one end to said oscillating shaft and having a bifurcated portion on the other end adapted to rest on the rod astracldle said ratchet wheel, a pawl pivotally supported by said bifurcated portion and engageable with said ratchet wheel for imparting step-by-stepvrotation thereto in one direction responsive to movement of said oscillating shaft, and means for limiting downward movement of the pawl whereby said rod may readily be removed and replaced.

References Citedin the file of this patent UNITED STATES PATENTS 532,405 Threlfall Jan. 8, 1895 638,975 Mills et a1 Dec. 12, 1899 1,529,148 Taylor Mar. 10, 1925 1,745,151 Comber Jan. 28, 1930

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