US2441110A - Creel structure for spinning and roving frames - Google Patents

Description

May 4, 1948 M. COTCHETT 2,441,110

CREE L STRUCTURE FOR SPINNING AND ROVING FRAMES Filed Feb. 3, 1945 3 Sheets-Sheet l May COTCHETT 2,441,110

CREEL STRUCTURE FOR SPINNING ,AND ROVING FRAMES Filed Feb. 5, 1945 5 sheets-sheet 2 May 4, 1948.

L. M. COTCHETT CREEL STRUCTURE FOR SPINNING AND ROVING FRAMES- Filed Feb. 3, 1945 3 Sheets-Sheet 3 Patented May 4,, 1948 CREEL STRUCTURE FOR SPINNING AND ROVING FRAMES Louis Cotchett, Hingham, Mass., assignor to Saeo-Lowell Shop, Boston, Mass., a corporation of Maine Application February 3, 1945, Serial No. 575,998

7 Claims. (Cl. 242-131) This invention relates to spinning frames and similar machines in which essentially the same bobbin arrangements may be used. The invention is more especially concerned with the creel structure, and it aims to improve apparatus of this type with a view to providing an organization which will be exceptionally simple, will be more convenient for the'operators to use, and will eliminate a high percentage of the labor involved in cleaning.

The nature of the invention will be readily understood from the following description when read in connection with the accompanying drawings, and the novel features will be particularly pointed out in the appended claims.

In the drawings,

Fig. 1 is a plan view of the creel section of a spinning frame embodying features of this.invention;

Fig. 2 is a side elevation of the structure shown in Fig. 1;

Fig. 3 is a vertical, transverse section through the creel of the machine shown in Figs. 1 and 2; and

Fig. 4-is a sectional view showing a detail of construction of the bobbin-supporting arms.

Referring first to Figs. 1 and 3, the construction there shown comprises a spinning frame of the duplex type. That is, it includes two rows of spindles with cooperating rows of drawing rolls 3 and 4, respectively, mounted at opposite sides of the frame, and a creel positioned between and above them. The present invention is particularly concerned with the latter structure,

As best shown in Figs. 1 and 3, it comprises a main central support, roughly of pyramidal form in transverse section, and extending throughout the entire length of the creel, although it may be made in sections, if desired, for manufacturing and assembling convenience, or for any other reason. This central structure forms the main sup-port for two banks of bobbins located at opposite sides of it. It includes two metal plates, indicated at 5 and 6, respectively, both secured at their upper edges in the opposite grooved sides of a circular rod 1. For this purpose they may be spot-welded, screwed, or riveted to the rod and their outer surfaces merge smoothly with the upper rounded surface of the rod. At their lower edges these plates are connected by foot pieces 9 and 10 of the weighting mechanisms for the rolls to the respective roller beams H and I2.

It should be observed that the upper portions ofthe two plates 5 and 6 are spaced apart by only relatively short distances but that their lower portions diverge rapidly from each other as they extend toward the opposite edges of the frame. To the narrower portions of the central structure formed mainly by these plates several series of laterally projecting arms ii are secured. Preferably these arms are streamlined, as best shown in Fig. 4, throughout the greater part of their length, but'each arm also has a pin M at its outer end to support a bobbin. The arms may be secured to theplates before they are assembled in the machine, either by spot-welding, or by screws, or similar fastenings I5, Fig. 4, driven through the plates from the inner surfaces thereof. They are arranged in horizontal rows extending lengthwise of the frame, and they are so spaced as to support the bobbins of each bank in staggered relationship to each other, not only in a vertical plane extending lengthwise of the machine, as shown in Fig. 2, but also in a transverse vertical plane, as illustrated in Fig. 3, and additionally in a horizontal plane, as shown in Fig. 1. This makes the maximum use of the space available, while still holding the over-all lateral dimensions of the creel within exceptionally narrow limits. At the same time it provides means for supporting the bobbins in a compact relationship which is far more convenient for the operator than is the customary arrangement. As shown, the bobbins overlap slightly in a vertical direction, and this overlap will be increased with bobbins of greater axial length.

At points spaced suitably along the length of the central supporting structure 5-6, additional arms I1 and 18, Figs. 2 and 3, are secured to the respective plates 5 and 6 and extend laterally in'opposite directions away from said support. At their free ends they are equipped with fittings l9 and 20,respectively, through'which vertical bars 2| and 22 extend and in which they are secured by pins or set screws; and each of these sets of bars supports three guide rods for the strands drawn from the respective banks of bobbins. The rods for the right-hand bank, Fig. 3, are indicated at 23, and those for the left-hand bank at 24. Strands of yarn drawn from the respective bobbins run over them and ultimately are guided on the bottom bars to the bites of the rear rolls of the two lines of draw ing rolls 3 and 4. A machine so organized can readily be made with a maximum height of five feet and four inches from the floor to the top rods 23 and 24, so that all of the bobbins are within convenient reach of the operator.

Much of the labor of cleaning required in a spinning frame is occasioned by the shedding of lint and fiy from the bobbins and the strands drawn from them, as the latter travel to the drafting rolls. This fly ordinarily collects on the creel boards between the lines of drawing rolls and on the other numerous horizontal surfaces in the immediate neighborhood of the bobbins. According to the present invention, however, these horizontal surfaces are substantially eliminated. -The arms I:- are streamlined, as above explained, and the arms l1 and I8 preferably are made of a similar form so that they offer a minimum of surface on which lint can collect.

Moreover, each of the plates 5 and 8 underlies its respective bank of bobbins, and it has surfaces sloping downwardly and outwardly which cooperate with the down-draft of air, normally created by the motion ofthe bobbins, to guide this lint to the adjacent edge of the machine frame where it is discharged and ultimately falls on the floor. Thus these plates act as shields on which the lint collects and from the surface of which it is swept by the down-draft above mentioned. a

It will be seen from an inspection of Fig. 3 that the bobbins are supported at their lower ends only, each pin l4 carrying a bushing M which is mounted to rotate freely on it. The bushing, in turn, fits into the bore in the lower end of the bobbin and has a shoulder to limit the downward movement of the bobbin. Thus the supporting structure required for the bobbins is reduced to a minimum and is almost entirely devoid of surfaces on which lint or fly can collect. This fact will be particularly noticeable from an inspection of Fig. 1.

The invention provides a creel structure of exceptionally simple form, which is compact and capable of being manufactured economically,

while at the same time being exceptionally convenient for the operator to use.

While I have herein shown and described a preferred embodiment of my invention, it will be evident that the invention may be embodied in other forms without departing from the spirit or scope thereof.

Having thus described, my invention, what I desire to claim as new is:

1. In a spinning frame, a creel structure comprising means for supporting a multiplicity of bobbins in positions for the feeding of the yarns drawn from them to the spinning instrumentalities, and a shield underlying said bobbins and having an inclined surface for catching the greater part of the lint shed by the bobbins and guiding it laterally toward one side of the frame, said means including arms extending laterally from said shield and the arms being provided with pins adapted to support said bobbins at their lower ends only in approximately upright positions.

2. In a spinning frame of the type comprising rows of spinning instrumentalities located at opposite sides of the machine, a central creel structure having surfaces inclined laterally toward the opposite sides of said frame, arms extending laterally from said central structure, and rotary bobbin supporting pins mounted on said arms and adapted to support the bobbins in substantially upright positions by engagement with their lower ends only.

3. In a spinning frame of the type comprising rows of spinning instrumentalities located at opposite sides of the machine, a central creel structure having broad surfaces inclined laterally toe ward the opposite sides of said frame, arms extending laterally from said central structure, right and left banks of bobbins supported on said arms and arranged in rows at opposite sides of said central structure and above said surfaces.

additional arms extending from said central structure, and devices supported by the latter arms for guiding the strands drawn from said banks of bobbins, the aforesaid arms being substantially devoid of flat, horizontal surfaces, whereby they shed lint or fly coming in contact with them. i

4. In a spinning frame of the type comprising two rows of spinning instrumentalities located at opposite sides of the machine and right and left banks of bobbins positioned in cooperative relationship to said instrumentalities, a creel structure for supporting said bobbins and including plates having upper portions, steeply inclined and positioned closely adjacent to each other, said plates also including lower portions sloping more gradually away from each other toward opposite edges of the machine frame, the creel structure including means supporting said banks of bobbins above said plates in such positions that lint and fly shed from them will fall on said plates and be guided by them outwardly toward the opposite edges of the machine.

5.. In a spinning frame of the type comprising rows of spinning instrumentalities located at opposite sides of the machine, a central creel structure having .broad surfaces inclined laterally toward the opposite sides of said frame, arms extending laterally from said surfaces, and right and left banks of bobbins supported on said arms and arranged in rows at opposite sides of said central structure, said broad inclined surfaces gnderlying the entire space occupied by said bobins.

6. A spinning frame according to preceding claim 5, in combination with horizontal guide bars for the slivers drawn from said banks of bobbins, and additional arms extending from said central structure and supporting said bars.

7. In a spinning frame of the type comprising two rows of spinning instrumentalities located at opposite sides of the frame, right and left banks of bobbins and right and left rows of drawing mechanisms through which slivers drawn from said bobbins are fed to said instrumentalities, a creel structure comprising two shields inclined in opposite directions toward the edges of said frame, said shields underlying said bobbins and the sections of said slivers running from the bobbins to said drawing mechanisms, whereby said shields collect lint and fly falling from said bobbins and said slivers and guide it to the opposite sides of said frame; said shields forming thesupporting body of the creel structure and said body having a transverse, vertical, sectional form of triangular shape, with the apex of said body located between the two banks of bobbins and its base portions extending in opposite directions under the respective banks of bobbins substantially to the opposite edges of the machine frame.

LOUIS M. COICHE'IT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS

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