US1827186A - Winding machine - Google Patents

Description

5-. E. BORGESON WINDING MACHINE Oct. 13, 1931.

a speets-sheet' 1 Filed Dec.

f mvemar 574/ Oct. 13, 1931. s. EJBORGESON WINDING MACHINE s Sheets-Sheet "5 Filed Dec.

Patented Get. 13, 1193!.

TATES SIDNEY ELMER BORGESON, OF CHICAGO, ILLINOIS, ASSIGNOR T0 WESTERN ELEGIRIC COMPANY, INCORPORATED, OF NEW YORK, NZ'Y A CORPORATIUN 015 NEW YORK WINDING MAGHINE Application filed December 19, 1928. Serial No. 326,868.

This invention relates to winding machines, and more particularly to a machine for winding material spirally upon annular objects.

Winding machines have been found particularly useful in winding wire spirally upon closed annular cores, such as are used in loading coils of telephone circuits. Such a w1nding machine may consist of a rotary winding ring and a. spool or shuttle rin which pass through the center of the core w ile the same is. oscillated about its axis, the wire bein drawn from a stationary supply and woun upon the shuttle and then applied to the core in a well known manner.

The primary object of this invention is to provide an improved winding machine wherein annular articles may be wound with great facility at a high speed and with the winding material at all times maintained under a substantially constant and uniform tension. y

In one embodiment of this invention as applied to a telephone loading coil winding machine a spool or shuttle ring and a winding ring are mounted concentrically and in spaced relation for rotation inde endently of each other, the rings bein a apted to be interlinked with an annularloading coil core. Carried by the winding ring is a tension device comprising two sheaves, one a fixed sheave and the other a movable sheave carried by a yieldably and slidably mounted member. The winding material is guided from the spool ring over a guide block attached to the winding ring and plurally looped from The guide to the yieldable sheave and over the first sheave to the core. As the winding ring is rotated the yieldable sheave will move and thus maintain the material being wound under a substantially constant and uniform tension. Due to the doubling or looping of the material between the guide and the core the movement of the vieldable sheave and consequently theelongation of the spring associated therewith are materially reduced.

Cooperating with the tension devi e to permit the winding of coils at a high rate of speed is a friction drive and a manual control therefor which provides the operator with accurate control of speeds both during the winding of the shuttle with wire and the subsequent application thereof to the core to be wound, and also for ositive and smooth starting and stopping o the mechanism. A motor driven driving disk drives a friction wheel adapted to be shifted across the face of the disk to drive the winding mechanism at a predetermined s eed in either a forward or reverse direction y the downward movement of a foot treadle, the direction and speed of the winding mechanism being controlled by a hand lever movable to a plurality of calibrated positions.

Other objects and advantages of this invention will more full appear from the following detailed description taken in connection with the accompanying drawings, wherein Fig. 1 is a fragmentary elevation of a windmg machine embodying the features of this invention, with portions removed or in section for the purpose of'more clearly illustrating certain elements of the'machine;

Fig. 2 is aside view thereof, partly in section;

Fig. 3 is an enlarged fragmentary vertical section taken on the line 33 of Fig. 1, showing in detail the winding ring with the improved tension device;

Fig. 4 is an enlarged section on the line 4-4 of Fig. 3, showing in detail the manner of supporting and guiding the shuttle and winding rings during rotation;

Fig. 5 is a vertical detail section on th line 5-5 oflFig. 2; and c Fig. 6 is an enlarged section on the line 66 of Fig. 3.

Referring now to the drawings in detail wherein like reference numerals indicate simsprocket chain 17.

a in line with the horizontal axis of the disc 11, the shaft 26 having splined thereto for longitudinal adjustment a friction wheel 21 which normally is positioned opposite a recess 22 formed in the friction driving face of the disc 11 (Fig. 1). It will be apparent that upon rotary motion being imparted to the disc 11 and then shifting the wheel 21 upon the shaft from the recess 22 of the disc and toward the periphery of the latter, the shaft 20 may be rotated at varying speeds in either direction, depending onthe extent of movement of the wheel 21 from the recess and whether it is moved upwardly or downwardly as viewed in Fig. 1.

The friction wheel 21 is shifted by the actuation oil a foot treadle 23 and associated mechanism to be presently described. llhe extent and direction of movement or the wheel 21 inresponse to an actuation of the loot treadle 23 is predetermined by the adjustment of a hand lever 24 movable to a pluralit ofcalibrated positions, the movement 0 the foot treadle 23-bein the same for all adjustments of the ban lever for limiting the s eed of the wheel 21. hub portion 27 of t e wheel 21 is formed with an annular groove 28 into which project at diametrically opposite points pins 29 (Fig. 1) carried by a forked end of a shifting ever 30 pivoted at 31 to a depending lever 33, in turn pivoted to the frame 13 at 34. Extending from the lever 30, through an arcuate slot 35 in the frame 13, at a point intermediate the pivot 31 and the wheel 21 is a pin 36 upon which is pivoted one end of a link 37, disposed outside of the frame 13, the opposite end thereof being pivoted to a pin 38 fined to the frame 13 and centered with but at a right angle to the longitudinal axis of the shaft 20. p The foot treadle 23 is pivoted at 41 to the frame 13 and at one end is provided with a serrated portion 42 to be engaged by an operators foot. At each side of its pivot 41 the treadle 23 is provided with an arc-shaped.

portion 43 formed with a similarly shaped "slpt 44 in its forward vertical face, the longitudinal' center of the slot being coincident with the axis of the pivot 41. Interconnecting the treadle 23 and the link 37 is a link 45 which at its upper end is pivoted at 48 to the link and at its lower end is provided with a shouldered pin 49 equipped with a slide lug 50 at its left end (Fig. 5) which is adapted to be freely moved alon the slot 44 from one end thereof to the ot er, the radiant point aeamee ends to the frame 13 and the left end of the arc-shaped portion 43 serves to maintain the treadle 23 in its upper normal position (Fig. 2) in which position through the links 45 and 37' the periphery of the friction wheel 21 is dispose opposite the recess 22 of the friction disc 11 and therefore the shaft 20 will be idle. To insure that the wheel 21 will stop opposite the recess 22 when the treadle is released under the action of the spring 57, a stop lug 58 provided on the frame 13 is engaged by an adjustable stop member 59 carried by the treadle 23, the member 59 being equipped with a leather pad 60 to deaden the impact when the member 59 engages the sto lug 58. Likewise, when the treadle 23 is epressed the movement thereof is limited by cooperatmg stop surfaces 62 and 63 provided on the frame '13 and the treadle, respectively, to the right of the pivot 41 of the treadle.

To relieve the o erator of the duty of holding the treadle 23 depressed during a winding operation against the action of the spring 57, a spring dpressed v latch 64 carried by the treadle an co-operating with a latching surface 65 formed upon a lug 66 fixed to the frame 13 serves to automatically hold the treadle in its depressed or operative position as fragmentarily shown in dotted out-- line (Fig. In depressing the treadlc .23 the right hand angular face of the latch 64 first moves into engagement with a surface 67 ofthe lug 66, the latch 64 moving towardthe left and com ressing a 5 ring 70 associated therewith an finally latc es under the latching surface 65. When it is desired vto trip the latch 64 the operator depresses a foot treadle 71 carried hy and pivoted at 72 to the foot treadle'23, the latch 64 which is reciprocably mounted in a housing 73 formed on the treadle 23 and connected to the treadle 71 by a link 74 is thus moved to the left (Fig. 2) and unlatched fromthe surface 65 of the lug 66. The spring 57 then acts to move upwardly the treadle 23, thus returning the friction wheel 21 to its normal position by means of the interconnecting levers and links hereinbefore referred to. A counterweight 77 is fixed to the right end of the treadle 23 for the purpose of counter-balancing the action of the spring 57. Cooperating stop surfaces 78 and 79 upon the treadles 23 and 71, respectively, serve to limit the counterclockwise movement of the treadle 71 relative to the treadle 23 when withdrawing the latch 64. U on the operator releasing the foot treadle ?1 after unlatching the treadle 23, the compressed sprin returns the treadle 71, the link 74 and t e latch 64 to their normal position, a stop surface on the treadle' 71 engaging a similar surface on the housing 73.

The left end of the hand lever 24 (Fig. 2) extends between and is laterally guided by arc-shaped plates 83 and 84'fixed to the frame 13. The left end of the lever 24 is formed with a right angular portion 85 positioned outside the peripheral surfaces of the plates 83 and 841 which extends over the peripheral surface of the plate 8; and is spaced therefrom (Fig. l). Between'the lever portion 85 and the peripheral surfaces of the plates 83 and 8 at the upper portions of the latter and spanning the space therebetween is an adjustable arc-shaped stop member 86. a similar stop member 87 being positioned at the lower end of the arc-shaped plates. The stop members 85 and 8? aria provided with apertures 88 and 89, respectively, into which is adapted to be entered a spring pressed pin 92 dotted. outline Fig". 2) reciprocable in the angular port-ion 85 of the lever 24 end fixed to a hand grip 93 reciprocably carried by the portion 85 of the lever 24. a sprint: {not shown) enclosed in the hand grip con tantly urging the hand grip'with the pin 92 toward the, right (Fig. 2) therebv holding" the hand lever 24 in a predetermined position with respect to either of the stop members 88 and 8?. The outer side of the arc-shaped plate 83 (Fig. is provided'with two sets of indices 9e and 95 reading upwardlv and downwardly. respectively. each beginning at a common point or mark intermediate the ends of the plate. Indicating marks 96 and 9? upon the outer side faces of the stop members 86 and 87, respectively. serve to facil'tatethe adjustment of the stop members alone the peripheral faces of the plates 83 and 84' to predetermined positions w th respect to the indices 94 and 95, respectively. for a purpose which will be made apparent hereinafter. Bolts 100 serve to secure the stop members 86 and 87 in their adjusted positions. the shanks of the bolts extending into the space between the plates 83 and 84 and at their inner ends are provided with lateral extensions 10]. (Fig. 2) for engagement with the inner curved faces of the plates 83 and 84. The outer ends of the shank portions of the bolts 100 are shouldered and threaded for the reception of clamping nuts and washers 102.

' be more fully described hereinafter.

The operation of the friction drive and of the manual control therefor, hereinbefore described, for driving the shaft 20 at varying predetermined speeds in either direction is as follows: With the friction disc 11 being driven through the motor drive hereinbefore discussed and the hand lever 24 in its upper latched position, as shown in full outline in Fi g. 2, the link 45'will be positioned as shown to the left of the pivotal point 41 of the foot treadle 23. Upon a depression of the treadle until the stop members 62 and 63 engage, the link 45 through its connection with the left end of the treadle, will move downwardly therewith and draw with it the right end of the link 37, the opposite end pivoting about the pin 36. The movement downwardly of the link 37 rocks the shifting lever 30 soon terclockwise about its pivot 31 and shifts the friction wheel 23. from itsnorme-l position opposite the recess .22 of the disc it downwardly into engagement with the driving sun face of the disc below the axis thereof. The

shaft 20 will therefore be. rotated in one dimaximum distance toward the periphery of the disc and thus the shaft 20 will be rot-eted at a maximum speed. Upon the stop surfaces 62 and 63 engaging as hereinbefore described. the latch 6% moves under the latch ing surface 65 and the treedle 23 will be held in its depressed position without any effort of the operator. To return the friction wheel 21 to the recess 22 of the disc 11 the operator trips the latch 84 and the treadle 23 with the associated lever and link mechanism under the action of the spring; and counterweight 77 are returned to their normal position (Fig. v

To cause a rotation of the shaft 20 in a reverse direction to that just described, the op erator first draws the spring pressed pin 92 from the aperture 88 of the stop member 86 by drawing outwardly on the hand grip 93 and thereafter rocks the hand lever 2% about its pivot 51 by pressing downwardly on the the lower stop member 87 the pin 92 then springing into the aperture 89 of-the stop member 87. This latter movement of the hand lever 24 will shift the arm 52 thereof along the slot 44 to a point at the right of the pivotal point 41 of thefoot treadle 23 carrying with it the link 45. the latter merelv pivoting about the point 48 without changing: the position of the link 37 or other members of the mechanism. Wit-h the hand lever 24 and the link 45 positioned as just deall Jr scribed and upon a depression of the foot treadle 23 to its latching position in a manner as hereinbefore described, the link 45 will be moved upwardly, since the right end of thetreadle was moved upwardly. The upward movement of the lin 45 moves the right end of the link 37 upwardly and rocks the shifting lever 30 clockwise about its pivot 31 and thus shifts the friction wheel 21 from its normal position opposite the recess 22 of the disc 11, upwardly into engagement with the driving surface of the disc above the axis thereof. It willbe apparent that the shaft 20 will now rotate in a direction reverse to its direction of rotation when the wheel 21 is positioned below the axis of the disc 11 as hereinbefore described.

Since the stop member 87 is positioned upon the plates 83 and 84 at a point which will permit the hand lever 24 to be rocked downwardly a maximum distance, the link 45 likewise will be shifted to the right of the pivotal point 41 of the treadle 23 a maximum distance and therefore the wheel 21 will be shifted across the disc 11 and close to the periphery thereof and consequently the shaft 20 will be rotated at a maximum speed.

it will be apparent that the shaft 20 may be rotated at identical or ditlerent predetermined speeds in either direction by merely adjusting the stop members 86 and 87 along the plates 83 and 84, which adjustments are facilitated by the indiccs 84 and provided ,on the plate 83 and the indicating marks 96 and 97 upon the members 86 and 87.

As previously mentioned, the shaft 20 serves to drive the winding machine elements comprising a rotary winding ring 107 and a spool. or shuttlering 108 mounted concentrically in spaced relation side by side and arranged to rotate either independentlyor as a unit, as will be explained hereinafter. The rings 107 and 108 are each rotatably supported upon and laterally guided by an independent set ofridler rollers 109 and 110 (Fig. 4), respectively, 'ournaled upon ball bearings 111 supported y'side frame members 114 and 115, respectively, fixed at their base portions to an inclined surface 116 of a housing 117 mounted upon the upper surface of the bench top 10. The inner peripheral surface of the winding ring 107 is provided with gear teeth 118 and at either side of the latter are annular tracks 119 engaged by the rollers 109, each of which is formed with an annular channel 120 for the purpose of clearing the teeth 118.

The shaft, referring to Figs. 1 and 2, extends upwardly through the bench top 10 and the housing 117 and into an auxiliary housing 123 carried by the side frame member 114. To the upper end of the shaft 20 is fixed a spiral pinion 124 which meshes with a spiral gear 125 fixed to a horizontal shaft 126 journaled in the side frame member 114 and the housing 123. The left end of the rings 107 and 108 is for the purpose of posil tioning the rings in a convenient position for removing removable segments thereof so that a closed core 131 may be interlinked therewith.

in F 3 and -6 is illustrated the removsurfaces 138 (Fig. 6) provided on the ring 107 at opposite ends of the segment. The ends of the segment 132 overlap the latch surfaces 138 of the ring 107 as indicated at 139, which overlapping taken with the latch members and surfaces 133 and 138, respectively, it will be apparent, securely lock the segment from relative movement in all directions on the ring 107. Guide pins 140 (Fig.

6) fixed to the ring 107 at opposite ends of the segment 132 cooperating with apertures formed in the segment serve to facilitate the removal and replacement of the segment from and on the ring. The latch members 133 are each provided with finger grip apertures 141 for manipulating the members when removing or replacing the segment 132.

To wind the winding material, which may in one form be a wire 142 (Figs. 3 and 4), on the spool ring 108 in preparation for the winding operation, the spool ring is clutched to the winding ring 107 by means of a reciprocable shouldered spring pressed pin 143 cooperating with which is a pivotal spring pressed latch 144, the pin and the latch being mounted in the ring 107 (Fig. 3). Upon pressing the pin 143 inwardly from the outer side surface of the ring 107 and against the action of a compression spring (not shown) inclosed in the ring, an intermcdiate portion of the pin is latched under the latch 144 with an inner reduced end of the pin entering a depression provided in the opposed face of the spool ring 108, which Was previously aligned with the pin by revolving the spool ring 108 by hand. ltt will be apparent that upon connecting the driving mechanism to the winding ring 107, as

previously described the spool ring. will also be rotated and viously its direction of rotation when the wire 142 is being wound thereon is in a direction opposite to that in which it will revolve when the wire is bem unwound therefrom by the winding ring 1 during its application to the core 131., to be more fully described hereinafter. When a supply of the wire 1&2 has been wound on the spool ring 108 the latter is unlatched from the winding ring 107 by rocking the latch 14A counterclockwise (F1 3) about its pivot 1&8 by pressing upon a nger piece 14.9 integral with the latch and disposed within the peripheries of the rings and 108 and between the opposed. inner side faces thereof. This movement of the latch 1 1d releases the pin 143 and the spring previously men: tioned acts thereon, withdrawing the reduced inner end thereof from the cooperating depression in the spool ring 108.

The core 1 1 to be wound is held in a plane parallel to the inclined surface 116 oi the housing int by clamp members 156 and 151 mounted upon a standard 152 fixed to a shaft 153 suitably journaled in a bearing car-- ried by the housing 11? in such way that the core may be oscillated about its axis during the winding operation to guide the wire M2 which is being applied to the core 131 through a semi-circumference thereof The standard 152 may be oscillated by hand or preferably by gearing (not shown) interconnecting the shaft with the shaft 153. When one-half of the core 131 has .loeen wound, it may he removed. from the clamping members and 151 and turned around, whereupon the other half may be wound in the same manner. Since the means for holding the core 131 and oscillating it during the winding operation form no part of this novention, a detailed description and disclosure thereof are not deemed necessary to a full understanding of the features of this invention.

Referring particularly to Fig. 3 it will be noted that the wire 142 will be withdrawn from the spool ring 108 in the operation oi winding the core 131 at anon-uniform rate since the segment of the core around which the wire is being wound at any instant is not concentric with the winding and spool rings 10? and 108, respectively. Because of this, there is a progressive acceleration and retardation of the spool ring 108. The resistance of the weight of the spool ring 108 to this acceleration results in an intermittent tension on the wire 142, which varies with the weight of the spool ring and is proportional to the square of the speed of winding and therefore tends to set a very definite limit to the speed of winding. To overcome the limitations to the speed of =ni inherent in this general type of winding machines'the improved tension device hereinbefore mentioned and carried by the winding ring 107 is provided, which comprises the following mechanism.

threaded into the member and enga ing the inner side face of the winding ring 167 integral with the supporting member 155 at opposite ends thereof are laterally extending wire guides 159 and 160. Preparatory to the actual core winding operation the free outer end of the wire 1 212 is guided from the spool ring across the space between the spool ans winding rings 1G8 and 10?, respectively under the guide 159, through slot or aperture 163 (Fig. 3} therein to the outer peripheral surface thereof and along an oblique groove 164 formed the outer peripheral face-oithe guide 159 to a similar groove 165 provided in the guide 160. From the groove 165 the wire 1422 is guided through the space between the opposed inner walls of the rings illl'and 108 and looped around a sheave 166 journaled upon a yieldably and slidably mounted member 16 2', the sheave being arranged with respect to the rings 107 and 168 in a manner similar to that of the sheave .157 previously mentioned. The member 16? is provided with dove tailed side faces freely slidable along the dove tailed opposed inner walls of the channel 156. Attached to one end of the slidable member 167 is one end of a comparatively long coiled tension spring 170 lying in the channel 156 of the ring 16?, the opposite end of the spring being secured to a screw 171 threaded into the inner side face of the ring. After being looped around the sheave 166 as hereinbefore mentioned the wire 142 is looped around the sheave 15'? and the end of the wire is then fastened to the core 131.

1n the operation of Winding the core 131 the winding ring 107 rotates in the direction indicated by the arrow (Fig. 3), which, as hereinbefore mentioned, is in a direction reverse to that of the spool and winding rings 108 and 107, respectively, and as the sheave 166 travels away from the core 131, beginning at a point to the left of the core, as viewed in Fig. 3, the sheave supporting member 167 slides in the channel 156 and elongates the spring 170, due, it will be apparent, to the pull on the wire 142 being wound as the sheave moves away from the core. This pull on the wire M2 imparts tension thereto, and as the sheave 166 travels around and approaches the core again the sprin 170 contracts and pulling the member 16 with the sheave 166 thereon takes up any slack tending to term in the wire as the sheave approaches the core 131. The plural looping of the wire 14% between the guide 160 and the core 131 consisting of looping it around the yieldahle and slidable sheave 166 and then looping it around the relatively fixed sheave 157 provides a motion to the slidable sheave 16613 which is more nearly simple harmonic since toe movement of the sheave and the elongation of the spring 170 is reduced to a mini mum. This action it will be apparent imparts a substantially constant and uniform tension to the wire 142 being wound to maintain taut at all times, but without delet rious effect thereon.

lit is believed from the description herein: hetero given of the operation of the friction drive and the manual control therefor or driving the spool rings one of the wire tensioning device carried by the winding ring no further descri tion of operation Oil these cooperating devices will he necessary,

lt will be obvious from the accurate control of speeds and ease of reversing the direc-= tion of rotation of the rings both during the winding of the spool ring with a supply of wire and the subsequent application thereof to the core to be wound, by the winding ring, attorded by the friction drive and the manual control therefor, which also provides for positive and smooth starting and stoppingo't the winding mechanism, taken with t e substantially constant tension imparted to the wire as it is wound on the core by the improved tension device that annular objects, such as coils, may be wrapped or wound with great facility at a high speed and without any deleterious efiects thereon.

V W hat is claimed is:

1. In a machine for winding strand material around closed cores, a rotary spool ring and a winding ring, each having a segment removable in a direction parallel to the axis of the ring to permit the interlinkin of the ring with the core, and latch mem ers reciprocably mounted within the segment, each of the latch members cooperatin with a latch surface formed on a portion of t e rin which extends within and overlaps each en of the segment for locking the segment to the ring.

2. In a machine for winding strand material around closed cores, a rotary spool ring and a winding ring, each having a segment removable in a direction parallel to the axis of the ring to permit the interlinking of the ring with the core, latch members reci rocably mounted within a depressed guideway of the segment, each of the latch members cooperatnannies my name this 8th day of December, A. 1D.

SIDNEY ELMER BQRGESQN,

e latch surfaces of i

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