US2464860A - Wire strand machine - Google Patents

Description

WIRE STRAND MACHINE Filed April 26, 1946 2 Sheets-Sheet 1' March 22, 14%. R. D. GREEN WIRE STRAND MACHINE Filed April 26, 1946 2 Sheets-Sheet 2 Patented Mar. 1949 2,464,860 WIRE STRAND MACHINE Richard Duane Green, Trenton, N. J., asslgnor to John A. Roeblings Sons Company, Trenton, N. J., a corporation of New Jersey Application April 26, 1946, Serial No. 665,269

3 Claims.

This invention relates to a wire strand machine of the type in which a number of wires or strands are twisted together, the object of the invention being to provide a simple, efficient and durable machine which shall be capable of operating at very high speed.

A further object is to provide such a strand machine in which a larger number of twists may be made than in previous machines of this type.

A machine embodying all the features of the invention in a preferred form will now be described in connection with the accompanying drawings forming a part of this specification and the features forming the invention then specifically pointed out in the claims.

in the drawings:

Figure l is a vertical diagrammatic view in section of the upper part of the machine in which the first twists are made;

Figure 1A is a similar view of the lower part of the machine for additional twists and spooling oi the strand.

Referring to the drawings, and now more especially to Figure 1, A is a part of the stationary frame which carries the operating mechanism, B the driving shaft mounted in the frame, C a rotating spool carrier in which are mounted the spools D supplying the wire for the strand, and E is a twisting fiyer to which the wires pass from the spool carrier C.-

The spool carrier C consists of upper and lower heads l0, H, connected by tie bars 12 and carries in its upper head it the twisting head l3 running in bearing I in head l8 and provided with separate passages for the wires 2 to be twisted, preferably, as shown, a central wire and several wires twisted about this central wire to form a strand. It will be understood that any desired number of tie bars it may be used to connect the heads Ill, ii.

The spool carrier and fiyer are broken so as to shorten the view of the machine and only four spools D are shown, but it will be understood that any number of wires and spools desired may be I used, a common arrangement being seven wires with six wires twisted about the seventh wire. The spools D are arranged in line to rotate on and concentrically with the carrier and the wires 2 are led from the spools outward and then upward over the guide rolls 3, shown as mounted on the tie bars I 2. The spool carrier E is mounted .on the bottom head of the fiyer E by bearing la and rotates on a central stud l4 carried by the Aver E and extending through a considerable portion or the central sleeve I5 of the carrier, so

as to form a firm support for high speed operation and the spool carrier carries at its lower end gear l6 through which it is rotated by the fiyer by gearing described hereafter.

The'fiyer E consists of the upper and lower heads ll, it connected by ties l9 shown as tubes through one of which the strand in. is led, the upper head ll carryingstud 20 mounted to rotate in bearing 28 carried by the frame A. The fiyer E carries, also, a cross plate or bar 22 mounted on the ties iii and on this plate or bar 22 is mounted a strand closing die 23 for the wires passing from the twisting head it, this die 23 being made adjustable on bolts d by which it is mounted. in bar 22, so that the die 23 may be adjusted as desired relatively to the twisting head i 3 suit the lay of the wires. The twisting The strand is guid tral sheave 2d and cute. etc on; .iG tubes i9, downward through the tube over guide sheaves and then inward at the lower end the fiyer to a central sheave 25 from which the strand passes downward and ,over a sheave 26 to the part of the machine shown in Figure 1A or to any common or suitable windup mechanism if additional twists are not desired.

The fiyer is driven from gear 21 on shaft B through pinion 28 and gear 29 on the lower end ofhollow stud 30 projecting downward from a frame 3! carried by the fiyer and through which hollow stud 3B the strand passes as above described. The spool carrier 0 is rotated from the fiyer throughstationary sun gear 32 carried bystud 30 andengaging planet gears 33 onshafts 34 mounted in the lower head of fiyer E and frame 3!, the upper ends of theseshafts 34 carryinggears 35 engaging gear E6 on the lower end of the spool carrier C.

It will be seen that through this driving gearing the spool carrier C and fiyer E are rotated in opposite directions and the gearing is shown as driving the spool carrier at the same speed as the fiyer. It will be understood, however, that the gearing may be varied when desired so as to drive the spool carrier at any speed desired relatively to the fiyer and that the production speed of the machine may be increased by increasing the speed of one relatively to the other.

With the machine shown in Figure 1, it will be seen that three twists are made per revolution of the flyer E if the wire is delivered from sheave 26 directly to a stationary wind-up roll, two twists being made between the spool carrier and the flyer by the rotation of the spool carrier with twisting head it and the upper sheave 24 in opposite directions and the third twist between the sheave 28 revolving with the fiyer and the wind-up roll. If no more than three twists are to be given in making the strand, such machine shown in Figure 1 is complete with non flyer means for receiving the strand.

It is preferable in many cases, however, and one of the specific objects of the invention is, to provide for a larger number of twists and I have shown in Figure 1A an addition to the above machine, which provides for securing a total of six twists. In this construction A-l are stationary frame parts and B-l the driving shaft by which the mechanism is driven, which shaft may be an independent shaft, as shown, or a continuation of shaft B of Figure 1.

In this construction, an outer fiyer G, to which the strand passes from sheave 28 to Figure 1, encloses and drives a fiyer H, which carries a windup spool I on which the completed strand is wound, preferably with a usual traverse K. The outer and inner fiyers G and H are driven in opposite directions and the outer flyer in the op posite direction to the flyer E of Figure 1..

The fiyer G consists of upper and lower heads 81, 88 connected by ties 99 shown as tubes, through one of which the strand runs. and has secured on the ties 89 cross plates or bars '49, 4|,- providing mounting for the flyer H. The upper head 81 carries hollow stud 42 through which the strand enters and which runs in a bearing in frame A-l. The flyer G also carries central guide sheave 48, and sheaves over which the strand passes outward to the tube tie and over guide sheaves through the tube and inward to central sheave 43a, all arranged as the strand guide sheaves of Figure 1, except that the strand passes upward from sheave 43a.

The inner fiyer H consists of the upper and lower heads 44, 45, connected by frame bars 48 and is mounted for rotation incross bar 49"01 flyer G by stud 41 and by its lower head 45 running on cross bar 4| of fiyer C and hollow stud 48 extending upward from the cross bar.

sheave 28 of Figure 1 to sheave of Figure 1A, the strand will be given six twists per revolution, the third and fourth twists being between the sleaves 24, 48, as flyer G rotates in the opposite direction of fiyer E, and the fifth and sixth twists between the sheave 48a at the lower end of fiyer G and sheave or capstan 8|, as fiyers G and H rotate in opposite directions.

It will be understood that if only four twists are desired, this may readily be arranged by mounting the wind-up drum on the flyer G and I omitting the flyer H, so that no twist is given the a strand after the third and fourth twists given twisting head on the carrier carrying a plurality of spool wires and arranged to twist the plurality of wires into a twisted strand, 8, fiyer receiving the twisted strand and carrying it around the a spool carrier, and driving means for securing the rotation of the spool carrier from the flyer and in relatively opposite direction.

2. In a strand twisting machine, the combination of a spool carrier, a plurality of wire spools rotating on and concentrically with the carrier, a twisting head on the carrier carrying a plurality of spool wires and arranged to twist the plurality of spool wires into a twisted strand, a die receiving the twisted wires from the spools and adjustable toward and from the twisting head, a fiyer for receiving the twisted strand from the die and carrying the strand around the spool carrier, and driving means for securing the rotation of the spool carrier from the fiyer and in The driving mechanism for the fiyers and the parts carried by the inner fiyer H are as follows: The-gear 49 on shaft B-l drives the outer flyer G through gear 59 on stud 5| projecting downward fromhead 38 and the inner flyer H is driven by stationary or sun gear52 engaging gears 58 onshafts 54 carried by the flyer G, the shafts attheir upperends carrying gears 55 engaging gear 85 carried by lower head of inner flyer H. The gearing is shown as driving flyers G and H in opposite directions at the same speed, but it is understood that this gearing may be changed for. different relative speeds of the two flyers, as in the case of the gearing in Figure 1.

Flyer H carries ashaft 51 rotatedby a gear 58 engaging pinion 5 formed on the upper end of stud 48, andshaft 51 through bevel gears 59 drives shaft 68 carrying sheave or capstan 8i wind-up roll I. Shaft 60 is mounted in theside frames 46 of fiyer H and through pulleys 6 andbelt 1 drives a stub-shaft carrying gear 62 driving the traverse K through gear 63 and the wind-up spool I throughgear 64.

It will be seen that with the construction shown inFlgures 1 and 1A, and the strand lead from relatively opposite directions.

3. In a strand twisting machine, the combination of a spool carrier, a plurality of wire spools rotating on and concentrically with the carrier, a twisting head on the carrier removably mounted for change of heads and carrying a plurality of spool wires and arranged to twist the plurality of wires into a twisted strand, a die on the carrier receiving the twisted wires from the spools and from which the strand passes to traverse K and adjustable toward and from the twisting head, a flyer receiving the strand from the die and carrying the strand around the spool carrier, and driving means for rotating the spool carrier from the flyer and in relatively opposite directions.

RICHARD DUANE GREEN.

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

UNITED STATES PATENTS

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