US2569618A - Winding machine - Google Patents

Description

Ogt. 2, 1951 M. ROSE 2,569,618

WINDING MACHINE Filed March 25, 1947 4 Sheets-Sheet 1 Moe/21s Ease:

Oct. 2, 1951 M, ROSE 2,569,618

WINDING MACHINE Filed March 25, 1947 4 Sheets-Sheet 2 HEW Is-5 Oct. 2, 1951 M. ROSE 2,569,618

WINDING MACHINE Filed March 25, 1947 4 Sheets -Sheet 5 Opt. 2, 1951 M. ROSE WINDING MACHINE 4 Sheets-Sheet 4 INVENTOIE Maze/s Rose Filed March 25, 1947 Patented Oct. 2, 1951 UNITED STATES PATENT OFFICE WINDING MACHINE Morris Rose, Chicago, Ill., assignor to Kellogg Switchboard and Supply Company, Chicago, r 111., a corporation of Illinois Application March 25, 1947, Serial N 0. 736,952

9 Claims. 1

This invention relates in general to winding machines and has particular reference to machines of the type which are employed for making layer wound coils, such as may be found in the electrical arts.

Machines for making layer wound coils such as solenoid coils are generally of the type employing a spindle which drives a coil form upon which the coil is wound. By means of a gear train and a cam arrangement, reciprocal motion is imparted to a strand or wire guide, which enables the coil form to be wound with layers of wire. Means may be employed for varying the amplitude of movement of the wire guide a small amount to take care of minor differences in longitudinal dimension of the coil form, that the Wire will not crowd or build up at the ends of the coil form.

The machines of the prior art, however, will not readily wind coils of greatly different lengths, only small changes in length being accommodated by the means for varying the amplitude of the wire guide. To change from coils of one length to a coil of a substantially larger length requires a great man changes, which cannot be made rapidly or easily.

With the foregoing considerations in mind, it is a principal object of this invention to provide an arrangement which will give a large amplitude of movement to the wire guide means when it is desired to wind coils of greater length.

A further object is to provide a pair of reciprocating members, one of which may be rapidly adjusted to allow for small variations in the length of the coil form, the second reciproeating member being connected to the first member in such a fashion that its amplitude of movement may be greater or less than the first reciprocating member.

A yet further object is to provide a pair of reciprocating members, one deriving its movement from a rotating driving spindle, the other deriving its movement from the first and supporting a wire or strand guide, the second being connected to the first and in such a fashion that its amplitude is some ratio of the amplitude of the first.

Still another object is to provide in a winding machine, a pair of reciprocating racks, the first rack deriving its motion from the rotation of a driving spindle which rotates a coil form, the second rack deriving its motion from the first and supporting a wire guide, the second rack deriving its motion by means of a cluster gear, and having an amplitude some ratio of the amplitude of the first rack bar.

Other objects and important features of the' 2 invention will be understood from a study of th' description .taken hereinafter, taken together with the drawings which illustrate a preferred embodiment which the invention may assume in practice. The embodiment shown is not intended to limit the scope of the invention, the scope being limited only by the terms of the claims appended.

In the drawings, Fig. 1 is a front elevation of the winding machine according to the present invention;

Fig. 2 is a top view of the winding machine shown in Fig. 1;

Fig. 3 is an end view of the winding machine shown in Fig. 1 from the right end thereof looking toward the left;

Fig. 4 is a section taken substantially along the lines 4-4 of Fig. 2, showing details of the mechanism for level winding and the coil form holding mechanism;

Fig. 5 is a sectional view of the winding machine looking down into the interior of the enclosing casing which is in section to illustrate another view of the mechanism;

Fig. 6 is a section taken along the lines 66 of Fig. 4 in the direction of the arrows;

Fig. 7 is a section taken along the lines 'l---'! of Fig. 6;

Fig. 8 is a fragmentary sectional view illustrating the adjusting means in association with the rocker arm;

Fig. 9 is a fragmentary sectional view of the cam mechanism for giving reciprocating movement to the strand guide;

Fig. 10 is a sectional view showing the construction of the revolution counter;

Fig. 11 is an enlarged elevation view showing the details of the strand guide associated with the level winding means;

Fig. 12 is a sectional view along the line I2l2 of Fig. 4;

Fig. 13 is an enlarged isometric view showing details of the adjustable bearing supporting the rack for the strand guide.

Referring now to the drawings, particularly Figs. 1 to 4, the winding machine according to the present invention is indicated generall by the ordinal 2|], and comprises a base 22 which supports a casing 24. A standard 26 is suitably secured to the base 22 and has mounted thereon strand guide means indicated generally by the ordinal 28. The housing 24 has journaled therein, at 30 and 32, a rotating spindle 34 which is driven at a pulley 36, see Fig. 1, and a hand braking wheel 38 is secured to one end of the spindle 34 for braking or retarding the rotation is threaded at 40 and has threaded thereat a headstock 42 for supporting one end of a coil form CF, shown in dotted outline. The other end of the coil form CF is held in a tailstock indicated generally by the ordinal 44, so arranged that the tailstock 44 is constantly biased toward the headstock 42 with the coil form CF held between.

Secured to the casing 24 is a stud and rack 46 which slidably supports a tailstock body'ihember 48, the rack and stud 40 being threaded at 50 to receive a stop member 52, which'als'o gives support to the tailstock body member 48. Envircling the stud and rack member46 is a spr n 54 which bottoms at one end against the stop member 52 and at the other end on the interior of the tailstock body member 48, thereby constantly urging the member48 in 'a direction to hold the coil formCF between the tailstock and the headstock 42. The casing 24 also supports a stud 56 which forms a guide for the tailstock tailstock body member 48 supports a freely rotatable chuck 60 which is journaled in bearings 62.

Means are provided for moving the tailstock 44,

shown in Fig. 4, to the left for a completed coil wound upon the coil form CF and for reinserting a new coil form CF between the headstock 42 and the tailstock 44.. To this end, the stud and rack body member 48, which is slotted as at 58. The

The strand guide means 28, see Figs. 1, 3, andv 11, which is adapted to move longitudinally of the axis of rotation of the coil form CF, layer winding a coil thereon, by means as will be presently described,. comprises a pair of supports I2 which are press fitted to a rack bar 74, which is slidably supported in a pair of adjustable bearings I6, see also Fig. 2. The supports I2 are spanned by a member I8 which is held tothe supports I2 by means of bolts 80 threaded into the supports 12. The member I8 supports a member 82 which is secured thereto by means of a bolt 84 threaded into one ofthe split ends thereof. An arm 88 is provided with a collar 86 surrounding the member I8. The arm 88 has hingedly connected thereto at 90, an arm 92 which sup- 7 ports a pair'of freelyturning sheaves 94 and 96 I00, the other end of the spring I00 being bottomed against the arm 92 to provide some restraint of movement at the hinge at 90. The arm 88 is provided with an adjusting screw I02 which limits the amount of counterclockwise movement of the arm 92 with respect to the arm 88, a restrained amount of clockwise movement to the arm 92 with respect to the arm 88 being permitted by means of the spring I00.

An interiorly threaded boss 81 on the arm 88 cooperates with a knurled head screw 89, the boss 81 being encircled by a spring 9| bottomed at one end on the arm 82 and at the other end upon the knurled head of the screw 89, whereby the arm 88 may be adjusted in position with reference to the coil form CF'at the start of a winding operation.

Means are provided for reciprocating the rack CF, whereby u oirretaudfiar the coilforin CF be- 4 tween the headstock 42 and the tailstock 44, the strand guide means 28 supported on the rack bar I4 will layer wind the coil form CF. To this end, see Figs. 1 and 4, the spindle 34 is provided with a worm portion I08 which engages a worm wheel IIO. Fast to the worm wheel H0 is a pinion II2 which, through a gear train comprising gears and pinions, H4, H6, II8 imparts rotation to a bevel gear I20. The bevel gear I20 meshes with a beveled gear I22 fast on a shaft I24 supported in bearing I26 and I28. The gear I I4 which meshes with pinion H2 and the attendant pinion II6 of the gear I I6 are journaled, see Fig. 12, on a stub shaft III which may be adjustably positioned in a'slot II3 of an arm II5 mounted near its split end on a stud II! in the casing 24. The pinion I I6 and gear II4 are held to the arm by a member II9 threaded to the stub III with the pinion H6 and gear II4 between and locked by means of a spanner adapted to engage holes I 2I therein. By the arrangement just described, the gear II4 and pinion can be brought into proper engagement, respectively, with pinion H2 and gear II8.

The shaft I24 has fast thereon a cylindrical cam I30, which is secured to the shaft by means of a pin I32, see Fig. 9, passing through its hub I34 and the shaft I24. The cam I30 cooperates with a follower I 32 which is slidable with respect to the shaft I24 and mounted upon a bushing I36 which provides a ball race for ball bearings I88 to minimize the friction between the shaft I24 and the cam follower I32. The cam follower I32 has secured thereto a member I40 which is provided with a, pair of bosses I42 which support bearings I44. The cam follower is constantly urged to the right as seen in Fig. 9 by means of a spring I25 which bottoms at one end against the bearing I26 and a disk I21, the other end of the Spring I25 abutting the member I40. A toggle arm I46 cornprising two matching portions secured together by machine screws I45, is slotted at I4'I and is adjustably pivoted at I48, and is provided with a cylindrical recess I50 adapted to engage the outer races of the bearings I44. The upper end of the toggle arm I45 is formed with a clevis I52 which straddles a block I54, see also Figs. 6 and 7. The block I54 is bored as at I56, and the block I54 is slidable on a stud I58 which'is fixedly supported at I60, one end of the stud being supported in the casing 24 by means of a bore or a hole therein at I62.

The block I54is formed with a pair of stub shafts I64 and I66, the stub shafts I64 and I66 being respectively fitted with shoes I88 and I10 which respectively ride on channels I72 and IT4 formed in the casing 24. The shoe I68 has integrally therewith an extension I16 which is bored to receive a reciprocating member I18, which is connected to the eir'ten'sio'n I16 by means of a pin [80. The reciprocating'member I78 passes through an opening in the casing 24 and exteriorly of the casing 24' is provided with a rack member I82 mounted thereon in any convenient manner, see Fig. l. The rack member I 82 meshes with a pinion I84 of a cluster gear I86 mounted ona stub shaft I88 supported by the standard 26. The cluster gear I86 also includes a larger pinion I90 which is engaged by the rack I4, the ends of which are supported in the sliding bearing T6 which 'may be adjusted to proper position by means 'of set screws I92, see Fig. 13, according to th diameter of the pinion I90 of the cluster gear I86. 'It' will thus beseen that upon rotation of the spindle 34 that rotating motion will be imparted to the shaft I24 through the gear train comprising gear elements H0, H2, H4, H6, H8, I20,- and I22, which will rotate the cylinder cam I30. The cam follower I32 which is constantly urged to the right as seen in Fig. 9 by means of the spring I25 will be alternately moved to the left and then to the right by the rotation of the cylinder cam I30, thereby imparting rotative movement in one direction and then in the other direction of the cluster gear I86. The pinion I90 which engages the rack 14 will then cause the rack I4 to have reciprocal movement, the amplitude of which, as compared to th amplitude of movement of the rack I82, will be in the same ratio as the ratio of number of teeth of the pinion I90 to the number of the teeth on the pinion I84. The strand guide 28 which i mounted to move with the rack I4 will thus have the same ratio of amplitude of movement to th rack I82.

It will be seen also that by a suitable selection of the teeth ratio in the cluster gear I86 that almost any desired ratio of amplitude of movement to the rack bar I82 can be maintained.

It will also be apparent that by a suitable selection of gearing in th gear train comprising gears and pinions H0, H2, H4, H6, H8, I20, and I22 that the speed of rotation of the cam I30 may be increased or decreased. If the speed of the cam I30 is increased, it will be seen that the speed of reciprocation of the member I78 will also be increased, and that th wire guide 28 will also increase in reciprocal speed that wires,of

larger diameter may be layer wound on the coil form CF. For smaller diameter wires, the gear train is so close in that a smaller speed is given to the cam I30 and consequently a lower speed to the wire guide 28.

Referring now to Figs. 1, 4, and 6, means are provided for giving a small amount of adjustment to the amplitude of movement to the rack I82 and the strand guide 28. To this end, the pivot point I48 of the toggl arm I46 may be suitably lowered or raised. The pivot point I40 comprises a shaft I96 journaled in a bushing I98 which rides in the slot I41 of the toggle arm I46, the shaft I96 being enlarged at 200 and adapted to be shouldered against a member 202 provided with a rack 204 whereby it may be raised or lowered by means of a pinion 206 journaled in the casing 24, and turned by means of a knurled hand wheel 203. The right end of the shaft I96 is provided with a nut and washer assembly 2I0, and the left end has threaded thereto a handle 2I2 which bears against the collar 2I4 which is I slidable upon an elongated slot 2 I 6 in the housing 24. The collar 2l4 carries a pointer 2I8 cooperating with a suitable index scale 220 which will indicate to the operator whether to raise or lower the pivot point I48 to take care of minor changes in length of the coil form CF.

In operating the adjusting means just described,the operator turns the handle 2I2 to the left unlocking the shaft I96 which is in firm engagement with the rack member 202. By suitably turning the knurled wheel 208, the pointer 2 I 8 is raised or lowered a desired amount according to the longitudinal dimensions of the coil form CF and then looked into position by turning the handle 2 I 2 a small amount to the right thereby bringing the shouldered portion of the shaft I96 into firm engagement with rack member 202.

It will thus be seen by lowering or raising the pivot point I48 that the amplitude of movement of the reciprocating member I18 will be suitably 6 increased or diminished, and that the amplitude ofmovement of wire or strand guide will be cor,- respondingly increased or diminished.

Referring now to Fig. 4, means are provided for indicating the total number of turns wound upon the coil form CF. To this end, the housing 24 is provided with a substantially semicircular extension 222 for housing a revolution counter generally indicated by the ordinal 224. Referring now to Figs. 4 and 10, the worm I08 of the spindle 34 cooperates with a worm wheel 226 secured to a shaft 228 by means of a pin 230, the right end of the shaft 228 being journaled in a cover plate 232 which encloses the revolution counter 224. The left end of the shaft 228 is journaled in a bushing 234 in the casing 24, and has secured thereto in any suitabl manner, as shown, an indicator 236.

The shaft 228 is suitably enlarged at 238 and has pinion teeth out therein which mesh with a large gear 240 having a pinion 242 fast therewith, the large gear 240 and the pinion 242 being suitably journaled at 244 in the casing 24. The pinion 242 meshes with a gear 246 which is fast to the bushing 234 and rotates therewith, the bushing 234 having a reduced portion 248 which supports in any suitable manner an indicator 250. Referring now to Fig. 1, the revolution counter 224 has a suitable calibrated dial 252, the outer scale which may read from 1,000 to 10,000, and the other scale which may read from 1 to 100, said readings corresponding to the turns made by the spindle 34 and the coil form CF. For each revolution of the worm wheel 226, the pinion 238 on the shaft 228 will rotate one revolution and will cause the gear 240 to make onetenth of a revolution, and since the pinion 242 is secured to gear 240, it also makes one-tenth of a revolution. Since gear 246 is in mesh with the pinion 242, it will make one-tenth of a revolution as the pinion 242 makes one revolution, thereby making a ratio of movement of the worm wheel 226 (and the indicator 250) to the indicator 236 of one hundred to one. In operating the winding machine according to the present invention, the operator inserts a coil form CF between the headstock 42 and the tailstock 44 by operating the handle I0. A strand W is started on the coil form CF. and the indicator set at zero. Power is applied to the spindle 34 at the pulley 38, and the strand guide 28 is caused to move reciprocally of the axis of the coil form CF. By selecting a suitable cluster gear I86, which cooperates with the rack I82 and the rack I4, any desired amplitude of movement of the rack I4 with respect to the rack I82 may be had, and the winding machine is thus not limited by the amplitude of movement of the rack I82 alone. By suitable selection of the ratio of pinion I92 to pinion I84, the wire guide 28 and its rack 14 may have larger or smaller total movement than the rack I82.

By suitably manipulating the adjustment 208 and the handle 212, see Fig. 1, the amount of travel of the strand guide 28 may be suitably adjusted to allow for small variations in length of the coil form CF.

When the indicator 224 shows that a desired number of turns has been wound upon the coil form CF, the winding machine may be stopped, the wound coil removed from between the headstock 42 and the tailstock 44 by operation of the handle 10 and a new coil form CF inserted between the tailstock 44 and the headstock 42.

The winding machine, according to the pres ent invention, provides for the winding of coils on forms of greatly varying longitudinal dimension. The machines of the prior art would accommodate coil forms having small differences in longitudinal dimension. With the present machine, by selecting a suitablecluster gear for varying the total amount of travel of the strand guide, the longitudinal dimensions of the coil forms may be between wide limits, at the same time permitting of adjustment for minor variations in length of the coil form.

While the invention has been described, in terms of a preferable embodiment thereof, its scope is not limited in terms of the embodiment shown nor otherwise than by the terms of the claims here appended,

I claim:

1. A winding machine comprising a rotating spindle for driving a coil form, wire guide means moving reciprocally of the axis of rotation of said coil form, a rack bar adapted to move reciprocallyupon rotation of said spindle, a second rack bar supporting the wire guide means, a support for said second rack bar, a shaft journaled in said support, a cluster gear mounted on said shaft and connecting the rack bars for changing the amount of amplitude of movement of the Wire guide mean with respect to said first rack bar, and an adjustable bearing for said second rack bar mounted on said support, whereby the second rack bar may be raised or lowered according to the diameter of the cluster gear.

2. A winding machine comprising a rotating spindle for driving a coil form, wire guide means moving reciprocally of the axis of rotation of said 'coil form, a rack bar adapted to move reciprocally upon rotation of said spindle, a second rack bar supporting the wire guide means, a support for'said second rack bar, a shaft journaled in said support, a cluster gear mounted on said shaft comprising a pair of pini'ons, the smaller being in engagement with the first said rack bar, the larger pinion being in engagement with the second rack bar, whereby the amplitude of movement of the wire guide means is increased, and an adjustable bearing for said second rack bar mounted on said support, whereby the second rack bar may be raised or lowered according to the diameter of the larger pinion.

3. A winding machine comprisinga rotating spindle for driving a coil form, wire guide means moving reciprocally of the axis of said coil form, a shaft driven by said spindle and having a rotating cam mounted thereon, a reciprocating member following the contour of said cam, a sec- 0nd reciprocating member, a toggle connection between said last mentioned reciprocating members, means for adjusting the position of thepivot point of said toggle for adjusting the amplitude of movement of said second reciprocating member, a driving rack bar attached to said second reciprocating member, a driven second rack bar supporting the wire guide means, and meansconnecting the rack bars affording adjustment facilities forselecting a desired ratio between distances moved by said driving rack bar and correspond ing distances moved by said wire guide means, said connecting means including a pair of replaceable gears of relative size determined by said ratio, and a rotatable shaft to which said gears are fixedly secured, one of said rack bars being adjustably positionable according to the size of its associated'gear.

4. A winding machine comprising a rotating spindle for drivingapoilform, wire guide :means moving reciprocally 'of the axis of said cell form, a shaft driven by said spindle and having a rotating cam mounted thereon, a reciprocating member following the contour of said cam, a second reciprocating member, a toggle connection between said last mentioned reciprocating members, means for adjusting hte position of the pivot point of said toggle for adjusting the amplitude of movement of said second reciprocating member, a rack bar attached to said second reciprocating member, a second rack bar supporting the wire guide means, a support for said second rack bar, a shaft journaled in said support, a cluster gear mounted on said shaft and connecting the rack bars for changing the amplitude of movement of the wire guide means with respect to the said first rack bar, and means for adjusting the position of one of said rack bars according to the diameter of the cluster gear.

5. A winding machine comprising a rotating spindle for driving a coil form, wire guide means moving reciprocally of the axis of said coil form, a

. shaft driven by said spindle and having a rotating cam mounted thereon, a reciprocating member adapted to follow the contour of said cam, a rack bar attached to said reciprocating member, a second rack bar supporting the wire guide means, a support for said second rack bar, a shaft journaled in said support, and a cluster gear mounted on said shaft and connecting the rack bars for changing the amplitude of movement of the wire guide means with respect to the first said rack bar, and an adjustable bearing for said second rack bar mounted on said support, whereby the second rack bar may be raised or lowered according to the diameter of the cluster gear.

6. A winding machine comprising a rotating spindle for driving a coil form, wire guide means moving reciprocally of the axis of said coil form, a shaft driven by said spindle and having a rotating cam mounted thereon, a reciprocating member adapted to follow the contour of said cam, a rack bar attached to said reciprocating member, a second rack bar supporting the wire guide means, a support for said second rack bar, a shaft journaled in said support, a cluster gear mounted on said shaft comprising a pair of pinions, the smaller being in engagement with the first said rack bar, the larger pinion being in engagement with the second rack bar for increasing the amplitude of movement of the second rack bar, and an adjustable bearing for said second rack bar mounted on said support, whereby the second rack bar may be raised or lowered according to the diameter of the larger pinion.

7. A winding machine comprising a rotating spindle for driving a coil form, wire guide means moving reciprocably of the axis of said coil form, a shaft driven by said spindle and having a rotating cam mounted thereon, a reciprocating member following the contour of said cam, a second reciprocating member, a toggle connection between said last mentioned reciprocating member, means for adjusting the position of the pivot point of said toggle for adjusting the amplitude of movement of said second reciprocating member, a rack bar attached to said second reciprocating member, .a second rack bar supporting the wire guide means, a support for said second rack bar, a shaft journaled in said support, a cluster gear mounted on said shaft comprising a pair of pinions, the smaller being in engagement with the first said rack, the larger being in engagement with the second rack bar, and adjustable positioning means facilities for positioning such bar according to the size of its respective pinion, whereby said cluster gear may be replaced by one having pinions of different relative size to effect a change in the amplitude of movement of the wire guide means.

8. A winding machine comprising a rotating spindle for driving a coil form, wire guide means moving reciprocably of the axis of said coil form, a shaft driven by said spindle and having a rotating cam mounted thereon, a reciprocating member following the contour of said cam, a second reciprocating member, a toggle connection between said last mentioned reciprocating members, means for adjusting the position of the pivot point of said toggle for adjusting the amplitude of movement of said second reciprocating member, a rack bar attached to said second reciprocating member, a second rack bar supporting the wire guide means, a support for said second rack bar, a shaft journaled in said support, a cluster gear mounted on said shaft and connecting the rack bars for changing the amplitude of movement of the wire guide means, and an adjustable bearing for said second rack bar mounted on said support, whereby the second rack bar may be raised or lowered according to the diameter of the cluster gear.

9. A winding machine comprising a rotating spindle for driving a coil form, wire guide means moving reciprocably of the axis of said coil form, a shaft driven by said spindle and having a rotating cam mounted thereon, a reciprocating member following the contour of said cam, a sec ond reciprocating member, a toggle connection between said last mentioned reciprocating members, means for adjusting the position of the pivot point of said toggle for adjusting the amplitude of movement of said second reciprocating member, a rack bar attached to said second reciprocating member, a second rack bar supporting the Wire guide means, a support for said second rack bar, a shaft journaled in said support, a cluster gear mounted on said shaft comprising a pair of pinions, one of pinions being in engagement with the first said rack bar, the other pinion being in engagement with the second rack bar, and an adjustable bearing for said second rack bar mounted on said support, whereby the second rack bar may be raised or lowered according to the diameter of the larger pinion.

MORRIS ROSE.

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

UNITED STATES PATENTS Great Britain 1920

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