US1561468A

US1561468A - Coiling or winding apparatus

Info

Publication number: US1561468A
Application number: US474141A
Authority: US
Inventors: Jordan James Denny; Dowd Archie Joseph
Original assignee: Western Electric Co Inc
Current assignee: AT&T Corp
Priority date: 1921-06-01
Filing date: 1921-06-01
Publication date: 1925-11-17
Anticipated expiration: 1942-11-17

Description

Nov. 17,1925. l 1

J. D. JORDAN ET AL CDILING-v 0R WINDING APPARATUS Filed June l, 1921 2 Sheets-Sheiet 1` Patented Nov. 17, 1925.

UNITED STATES PATENT oF-F1c1-z. i

JAMES DENNY JORDAN, OF RIVERSIDE, AND ARCHIE JOSEPH.' DOWD, OF CICERO, ILLINOIS, ASSIGNORS TO WESTERN ELECTRIC COMPANY, INCORPORATED, OF NEW YORK, Y., A CORPORATION 0F NEW YORK.

COILING OR WINDING APPARATUS.

Application filed June 1,

To all whom t may concern:

Be it lmown that we, JAMES DENNY Jon- DAN and ARCHIF. JOSEPH Down, citizens of the United States, residing at Riverside, in the county of Cook and State of Illinois, and at Cicero, in the county of Cook and State of Illinois, respectively, have invented certain new and useful Improvements in Coiling or Winding Apparatus, of which the following is a full, clear, concise, and exact description.

This invention relates to coiling or winding apparatus, and more particularly to an apparatus for coiling wire or similar material around an arbor with the adjacent coils or turns lying close together.

The object of the invention is -to provide an automatically operated mechanism for winding a continuous strip or coil with separated portions of a predetermined length located at predetermined positions in the length of the coil.

In accordance with the general features of this invention, there is provided a mechanism in which a rotatable arbor receives the wire or material from a supply reel located adjacent to the arbor and fed longitudinally thereof by means of a feed screw. A guide arm movable independently of the supply reel is adapted to be advanced independently of the supply reel at certain predetermined positions along the length of the arbor and at a speed which will provide an interruption in the close formation of the helix upon the arbor.

In the drawings:

Fig. 1 is a view in front elevation of a mechanism embodying the features of the invention;

Fig. 2 is a fragmentary plan view of parts shown in Fig. 1;

Fig. 3 is an enlarged detail sectional view of a chuck for holding the arbor wire;

Fig. 4 is an enlarged end view in section taken upon line 4-4 of Fig. 1;

Fig. 5 is an enlarged view showing the coil or helix upon the arbor; and

Figs. 6 and 7 are views of miniature incandescent lamps supporting wires illustiating an application of the coil produced by the mechanism of this invention.

As shown in the drawings, 5 designates a base plate having mounted at opposite ends thereof

upright frame members

6, 7, 8, and

1921. seriai No. 474,141.

9. The mechanism as a whole is driven from a belted pulley 10 mounted upon a shaft l1 which is journalled between the upright frame members 8 and 9. Upon the inner end of the shaft 11 isa chuck 12 adapted to clamp and hold one end of an arbor wire 13, the other end of which is secured in a similar chuck 14 carried by a shaft 15 journalled between the uprights 6 and 7. Mounted upon the shafts 11 and 15 are pinions 16-16 meshing with gears 17-17 upon spindles 18-18, which spindles also carry pinions 19-19 meshing with gears 20-20 upon opposite ends of a feed screw 21 journalled between the

upright members

7 and 8.

Engaging with the screw 21 is a frame 22 having a threaded portion and adapted to be fed longitudinally of the feed screw by the rotation thereof. The frame 22 is provided with an opening, throughl which a supporting rod 23 secured at opposite ends to the

upright members

7 and 8 extends and upon which the frame freely slides. At the rear of the fra-me is an upwardly extending fork member 25, between the arms of which is supported a supply spool or reel 26 carrying the material which is to be coiled. At its forward end the frame member 22 carries a bracket member 30 having a platform 31 upon which is slidably supported a plate 32 provided upon its upper face with an arcuated toothed portion 33 and being connected by means of a post 34 with a guide arm 35 pivotally supported at 36 upon the fork member 25. This pivotal guide arm 35 carries rollers or

pulleys

37 and 38 under and over which the material from the supplj spool 26 is led to the arbor 13. the arcuated portion 33 is pivotally mounted upon the upper end of a bell crank lever 41 which is pivotally secured to the bracket 30. At its other end the bell crank lever is connected with a spring actuated plunger member 42 slidably mounted in the lower end of a bracket 43 and provided with a portion 44 adapted to co-operate with surfaces of

cams

45 and 46. These cams are adjustably mounted upon

parallel bars

48 and 49 secured to the

upright frame members

7 and 8.

An upwardly extending arm 50 upon the frame 22 supports the pivotal guide arm 35 midway of its ends and provides a friction which retards the free movement of the arm 35.

The

chucks

12 and 14 are similar in structure and comprise the

tapered jaws

55 and 56 which are backed by a spring 57 located within a shell 58 tapered at its end and adapted to engage the

chuck jaws

55 and 56 to clamp them upon the arbor 13 by the action of the spring 57. perating

pins

59 and 60 secured to the jaws and extending through slots 61 and 62 arel provided for the purpose of releasing the jaws of the chuck from the arbor in a well-.known manner. i

A spindle 65 upon which the supply reel 26 is supported has its' advancing end surrounded by a spring, which normally tends to hold the supply reel 26 against a bushing 71 upon the opposite end of the spindle. K

The surfaces 4of the ca ins'45 and 46 are provided with ditferentslopes, the purposes of which will be apparent from the following description of the operation of this invention.

Referring now to its operation, it is assumed that the arbor 13, which is in the form of a wire, is secured in place between the

chucks

12 and 14, The end of the material from the supply reel 26 will be wrapped around a lug upon vthe chuck 12. rlhe plunger arm 42I will be adjusted so that the lower point thereof is just engaging-the lowest point on the cam 45. The. speed of the feed screw 21 is such that the arbor 13 will make approximately fifteen revolutions to one revolution of the feed screw. As the arbor 13 is driven :from the pulley 1() it will cause the material from the supply reel 26 to be wrapped around it in close spiraled relation, and the frame 22 carrying the reel 26 andv the *guide arm 35 will be advanced longitudinally of the arborlby the operation of the feed screw 21. As this advance oftheframe takes'place theplunger member 42 will be gradually raised by the face of the cam 45, thus swinging thcbell crank lever 41 and moving the pawl 4() backwardly over the teeth of the toothed plate A32v until the end 44 of the plunger member 42 drops overv the forward edge of the cam 45.v whereupon the pawl will be swungforward at a greater speed than the yspeed ofy the movement of the frame, therebyv advancingthe toothed plate 32 guide arm 35 connected therewithrapidly over a space equal to the amount that the pawl was moved backwardly during the time that the plunger was in engagement with the face of the cam 45.. As shown in F 5, this will produce a bre-ak in the close relation of the spirals of the coil, such as is indicated atl on the drawing. As there is a certain amount of friction between the pivotal guide arm 35 and the upper end of the upwardly extending member 50, this arm will remain in practically this position relative to the frame 227 so that as the feed screw continues to advance, the coiling` of the i'naterialr in close spiral relation will be repeated until the plunger member 42 again drops over the front edge of the succeeding cam.

lAs will be noted from the drawing, the faces of the cams 46-46 are longer than those of the. cams 4545 and are hi gher at their rear edges, which will cause the bell crank lever 41 to swing the pawl 4() backwardly over a larger number of 'teeth than in the case of the cam 45, thereby causing the advance of the guide arm to be greater than it was in the case of the cam 45. y The result of this is that withv the combination of cams shown on the drawing there will be three intervals of the length indicated at 85 for each one interval ofthe length of separation indicated at S6 on Fig. 5.

At the end of an operation the frame 22 will be to the right of its startingI position. as shown in the drawings. After cutting the wire from the supply reel and suitably securing the end thereof, the arbor 13 with the helices wound thereon is removed from the machine by releasing the

chucks

12 and 14. To reset the mechanism for a second operation, the frame 22 is turned counter clock-wise about its pivot on the rod (as showny in Fig. 4) to disengage the threaded portion thereof from the feed screw 21, and thereafter the frame may be freel \v slid on the rod 23 toy its starting position as shown. During the operation of the machinethc toothed plate 32 will have move-:l counter clock-wisey about the pivot 36 (as shown in Fig. 2) independent of the movement of the carrier 22, and to reset it the pawl is merely raised from engagement with the teeth on the plate 327 which may then ybc'turnml about its pivot 36 clock-dseto itsy starting'position. A new arbor is next secured in place between the chucks 12 and 14iandthe end of the material from the supply reel 26 is wrapped around the lug'BO. Thereaftenthe mechanism opera-tes as before described.

In the particular applieation of this inyention which is illustrated the mechanism ls'used in the production of filaments vfor miniature incandescent lamps. The points of separa-tion in the coil are the points at which these filaments will be attached to their supporting wires or standards7 as illustrated in Figs. 6 and 7. In these particular lamps there are four points of support-two above and two below/hand the point 'of longer separation is provided as the cuttin' or spreading point between adjacent filaments, a large number of which may be lwound upon the same arbor by vmeans of this mechanism.

What is claimed is: l. In a coil winding mechanism in combination, an arbor means for forming material around said arbor in a close helix, driving means for causing relative rotative movement between said arbor and said forming means, and adjustable means for causing periodic interruptions of different lengths in the uniformity of the helix without interrupting the continuity of the material being wound.

2. In a coil winding mechanism in combination, an arbor, means for forming material around said arbor in a close helix, driving means for causing relative rotative movement between said arbor and said forming means, and adjustable means for causing periodic interruptions of different lengths in the uniformity of the helix Without interrupting the continuity of the material being wound, said means operating simultaneously with said driving means.

3. In a coil winding mechanism in combination, an arbor, means for forming material around said arbor in a close helix, driving means for causing relative rotative movement between said arbor and said forming means, and adjustable cam devices for causing periodic interruptions of different lengths in the uniformity of the helix without interrupting the continuity of the material being wound.

4. In a coil winding mechanism, in combination a rotatable arbor, a feed screw, a material supply reel, a support therefor to move longitudinally. of said arbor by said feed screw t0 wind the material upon the arbor in close spiraled relation, a guide means for the material pivotally supported upon the supply reel support, and means for automatically moving said guide arm independently of said reel support to increase the distance between adjacent spirals of the coil at predetermined points.

5. In a coil winding mechanism, in combination a rotatablearbor, a feed screw, a frame co-operating with said feed screw, a supply reel supported upon said frame and moved longitudinally of said arbor by the feed screw to apply the material from the supply reel to said arbor in close spiraled relation, a guide arm pivotally mounted upon the movable frame, a pawl and ratchet mechanism for moving said arm independently of the movement of its support, and means controlled in the movement of said support to actuate said pawl and ratchet mechanism.

6. In a coil winding mechanism, in combination a rotatable arbor, a feed screw, a frame operated by the feed screw, a supply reel supported upon said frame and moved longitudinally of said arbor by the feed screw to apply material from the supply reel to the arbor in close spiraled relation, a guide arm for the material pivotally supported upon the frame, a toothed rack movable with said guide arm, a pawl adapted to engage the toothed rack to move it independently of the movement of the frame, a plurality of cams, and means connected with said pawl and controlled by said cams in the movement of the frame to operate the pawl to move the guide arm independently of the movement of the frame.

7. In a coil winding mechanism in combination, an arbor, means including a guide for forming material around said arbor in a close helix, means for causing periodic interruptions in the uniformity of the helix without interrupting the continuity of the material being wound, and means for normally retarding the free movement of said guide relative to said forming means.

In witness whereof, we hereunto subscribe our names this 14th day of May A. D., 1921.

JAMES DENNY JORDAN. ARCI-IIE JOSEPH DOWD.