US2467897A - Condenser winder - Google Patents

Description

April 19, 1949, -T. T. LOGIE ETAL CONDENSER WINDER 4 Sheets-Sheet 1 Filed July 6, 1945 uvvslvroks Thomas T Logic Joseph J. GaIIa A TTORNE Y April 19, 1949. T. T. LOGIE ET AL CONDENSER WINDER 4 Sheets-Sheet 2 Filed July 6, 1945 47 INVENTORS Thomas '1'! Logic Joseph J. Gal/a A TORNEY April 19, T T, LQG|E ETAL CONDENSER WINDER I Filed July 6, 1945 4 Sheets-Sheet 3 INVENTORS e3 Thomas TLogie I Joseph J.Ga1Ia BY AT RNEY April 19, 1949. T. T. LOGIE ETAL CONDENSER WINDER Filed July 6, 1945 4 Sheets-Sheet 4 INVENTORS Thomas I'Logie Joseph J; Galla BWW.

ATTDRNEY Patented Apr. 19, .1949

UNITED STATES PATENT OFFlCE CONDENSER wmnna Thomas T. Logic, Bridgeport, and Joseph J. Galla,

Falrfleld, Conn., asslgnors, by mesne assignments, to 'Sprague Electric Company, North Adams, Mass., a corporation of Massachusetts Application July 6, 1945, Serial No. 603,558

satisfactory embodiment of-the invention is shown. However, it is to be understood that the inventionis not limited to the details disclosed but includes all such variations ang modifications as fall within the spirit of the invention and the scope of the appended claims.

In the drawings:

Fig. 1 is a side elevational view of the machine of the invention;

Fig. 2 is a side elevational view of the operating means of the machine, the view being of that side of the machine opposite to that shown in Fig. 1;

Fig. 3 is a top plan'view of that part of themachine shown in Fig. 2; r

Fig. 4 is a front elevational view of the mechanism of Fig. 3; Fig. 5 is a sectional view along the line 5-5. of Fig. 4;

' Claims. ((1242-56) strips l5 and 16, while reel ll carries metal foil Hi. This arrangement is substantially duplicated at the lower portion of the uprights where reels l3 .and ZIl-carry strips of insulating material, as

the paper'strips 2| and 22, while reel 23 carries a strip r metal foil 24. It will be noted that the paper strips l5 and l6together with the foil 1 8 provide a laminated structure of which the foil in an intermediate layer while the strips 2|, 22

Fig. 6 is a detail sectional view on an enlarged scale illustrating a step in the a condenser;

Fig. 7 is a view similar to Fig. 6 a subsequent position of the parts;

Fig. 8 is asimilar view showing the relation of the parts as the condenser is cut from the strips of stock;

Fig. 9 is an enlarged front elevational view of a cam employed;

Fig. 10 is a side elevational'view and Fig. 11 is a detail elevational view showing the parts of the arbor separated and showing tile ejector or stripper means in an advanced posi ion.

Referring in detail to the drawings, the complete machine, shown in Fig. 1, comprises a frame including uprights I'D and H and a forwardly extending horizontal member l2. The actual mechanisms, having to do with winding of the condensers, are mounted either directly or indirectly on the forward portion of the horizontal arm I 2 while the uprights I0 and II prooperation of making but showing of said cam vide for the mounting of reels carrying the strip stock from which the'condensers are to be wound. Of the six reels shown, those numbered l3 and I 4 carry strips of insulating material, as the paper layer. I

and 24 provide a second laminated structure of which the metal foil strip 24 is the intermediate The two described laminated structures are wound one within the other about an arbor 25 and, for the purpose oflaterv convenience in the description, the respective laminated structures,

are designated 26 and 2]. Arbor 25 is of a split construction or is of a longitudinal divided construction comprisingia part 28 held in a chuck or coilet 29 at the inner end of a shaft 30, which latter is mounted in suitable supports orframe plates 3 l and 32 and driven as will be described.

The other part of arbor 25 is designated 33 and is mounted in a chuck or head portion 34 carried by a shaft 35 turnable and slidable in a sleeve 36 mounted by a sup rt 31. Aknob 38 on the outer end of shaft 35 provides means whereby the said shaftand the arbor part 33 may be drawn outwardly to move such arbor part longitudinally of the arbor part 28 to take such parts out of overlapping relation. Thereafter, shaft 35 may be given a reverse movement to bring the arbor parts back into overlapping relation. The purpose of this arrangement will later be described.

Arbor 25 is driven by crank 39 through suitable intermediate gears and shafts. Such crank is fixed to the end of the shaft 40 having bearing in the frame parts 4| and mounting a relatively large gear 42. Also disposed about the said shaft and fixed to the frame of the machine is a plate 43 having an arcuate outer edge about which I stop devices 44 and 44a may be adjusted. Such devices comprise blocks 45 and 4511 each having a groove receiving the edge portion of the plate 43 and mounting stop pins 46 and 46a respectively. Nuts 41 and 41a provide means for lock-.

tively small gear on a shaft 52. Shaft 52 exslightly in order to pass such stops.

Mounted on the shaft 49 are cams 56 and 51 of which the cam 56 (seeFig's. 9 and com prises a pair of similar cam-shaped plates58 and 59 provided with raised bearing surfaces 69 and lower surfaces 6|. Mounted between the plates 58 and 59 is a relatively thin plate 62 having an outer diameter or bearing surface 63 corresponding with the surface 69. All of these plates are clamped between a pair of nuts 64 and a collar 65 which latter may be fixed on the shaft as by means of a set screw 66.

On loosening of the nuts 64, the plate 62 may be adjusted about the shaft 49 so as to expose more or less of its surface 63 which in effect comprises a continuation of the surfaces 69 of the plates 58 and 59. The purpose of this will later be described but here attention is directed to the drop-01f or shoulders 61 between the surfaces 69 and BI of the plates 58 and 59.

Riding on the surface of cam 56 is a foot portion or shoe 69 of a lever 69 pivoted at one end as on a pin 19. At its inner end, lever 69 has the lower end of a push rod II passing therethrough and on such rod at opposite sides of the lever are nuts I2. It will be clear (see Fig. 5) that as the cam 56 turns in a clockwise direction the push rod II will be supported in an upper position while the foot portion 68 of lever 69 is riding on the high surface of cam 56 and that the push rod will be dropped down at the shoulder 61 of the cam and will remain down until the rise of the cam again enters under the said foot portion of the lever.

Bearing on the upper end of the rod II is a head or buttonlike portion 13 of a pin I4 fixed to the underside of a bar I5 connecting the forward ends of a pair of arms 16 pivoted at 11. Toward their forward ends, arms 16 carry a pivotally mounted roller 18 and on the upper side of the bar is a plate I9. A bracket 89 fixed to the underside of the bar I5 includes a lip-like portion 8| inclined upwardly at the forward side of. th bar.

Mounted at one end on a side of frame plate 32 and extending laterally from the latter over the plate I9 is a wedge-shaped dividing means or anvil 82. A roller 83 is mounted on a shaft 84 and is located at the upper side of the anvil 82 but slightly rearwardly thereof and an idler pin or roller 85 is disposed on the upper side of the anvil between the latter and the roller 83. Shaft 84 extends to the outer side of the machine frame where a crank 86, capable of flexing as will be set forth, is fixed to it.

A stop pin 81 is located in the path of turning movement of the crank 86 and is carried by an adjustable slotted arm 88 adapted to be clamped to a bracket 89 as by bolt and nut means 99. This bracket is supported on the frame plate 3| as best shown in Figs. 2 and 3. A second stop device for the crank 86 is provided and the same comprises a substantially L- '4 shaped arm 9| fixed to the frame plate 3| by means of a screw 92 and having its free arm 93 disposed with its end in the path of movement of the crank 86. The cooperation between these stops and the crank will be fully set forth.

The present mechanism includes an automatic cut-off device and the same is here shown as a blade 94 fixed to the outer end of an arm 95 pivoted on a post 96. Pivoted at 91. to an intermediate part of thearm 95 is the upper end of an operating bar 98, the lower end of which rides on the cam 51. Such cam has a sharp shoulder or drop-off 99. A screw or other means I99 serves to attach the bar 98 to the forward end of a lever |9| pivoted intermediate its ends as at I92 to the frame member I2. Anchored to the lower end of bar 99 is riding on the higher portions of cam 51 the arm 95 is held in the upper position of Figs. 2, 3, 4' and 5 and the spring I93 is stretched or under tension. Then, when the arm 99 drops off the shoulder 99 of the cam 51, the spring I 93 pulls upwardly on the inner end of lever |9| with the result that the bar 98 is snapped downwardly and rocks the arm 95 about its pivotal connection with the post 96 giving the blade 94 a cutting movement.

In the use of the machine the laminated structures 26 and 21 are fed to the arbor 25 by passing of the elements of the structure 26 under a guide or idler means I95 and over the pivoting means I'I under the rollers 83 and 85 and over the Gil anvil 82. The elements of the structure 21 pass over the roller 18 and at the under side of the anvil 82 and beyond the anvil both structures go directly to the arbor 25.

Following the completion of a condenser the forward ends of structures 26 and 21 are positioned as shown in Fig. 8 where the blade 94 has just been given a cutting stroke. This leaves a partially formed condenser I96 on the arbor and with the cut end portion of the structure 26 of said condenser extending beyond the cut end portion of the structure 21 of said condenser. As the arbor is further turned each cut end will flop over against a label guide I91 fixed below the arbor. At this point the upper end portion of the chute is against the partially formed condenser so that the latter is prevented from opening up or partially uncoiling on the arbor.

Now a label is wetted or made adhesive and is disposed against the inner faces of the cut ends while the arbor is stationary. When the label has been positioned, turning of the arbor is resumed and the label being longer than the cut ends of the condenser is wrapped about the outer side of the latter. The upper end portion of chute I91 yields slightly to permit of the winding up of the end portion of the condenser and the label. Now through use of the knob 38 the arbor portion 33 is moved longitudinally from overlapping relation with the arbor portion 28. 3

Then a stripper device is manually operated to eject the completed condenser from the arbor portion 28. Such stripper device comprises a plate I98 mounted at its upp r end on a bar or rod I99 and kerfed or grooved at its lower end to straddle the arbor, as best shown in Fig. 6. The bar or rod I99 is slidably mounted in a guide H9 and is normally kept in retracted position by coil spring III. Clearly, when the arbor portion 33 is drawn from overlapping relation with the arbor portion 29, shifting of rod I09 toward the right will cause the plate N18 to strip the completed condenser from the arbor portion 28.

Now to proceed with the formation of the next condenser, the operator flexes the crank arm 86 outwardly to free it from the edge of the stop arm 93 and moves the crank in a counter-clockwise direction until it engages the stop pin 81. This results in a turning of the roller 83. Such roller has the laminated structures 26 and 21 clamped against its under side by the roller 18 and thus turning of roller 83 results in a feeding of the laminated structures toward the arbor.

The amount of this feed is controlled by the location ofstop pin 81, which location is readily variable within the limits of adjustment provided for by the slot in the arm 88. At this time, the parts of the arbor are separated and the leading ends of the laminated structures 26 and .21 are simply fed over the arbor part 28. When the preliminary feed has been made, as, shown in Fig. 6, a folding device I I2 is swung up as to the position of said Fig. 6. I This device is of sheet metal and is pivotally mounted as at H3 and includes a lip or presser portion H4; a handle H5 and a flat finger-like holder portion H8.

When the device H2 is positioned as in Fig. 6,

it is holding the leading end portions of laminated structures 21 and 26 together and against the anvil 92 so that the leading end of structure 26 is drawn rearwardly of the leading end of structure 21. Additionally, the holder portion I I8 is drawing both the laminated structures 26 and 21 closely over the arbor portion 28. While the device H2 is held in this upper position the operator presses the knob 38 to move the arbor portion 33 back into overlapping relation with the arbor portion 28. Portion I [8 of device H2, durin this operation helps to keep the laminated structures together so that the return movement of the arbor portion 33 is such as to dispose the latter over both laminated structures. During all of the time the rollers 18. and 83 occupy the relative positions in which they are shown in Fig. 6.

Now the crank 39 is positioned against the stop 46a as in Fig. 1. The operator releases the folding device H2 and grips the handle of the crank flexing the latter to pass the end of stop pin 46a and move the crank about until it engages stop pin 46. As the crank is so. moved it turns the ear 42 and shaft 40 and through the previously described intermediate gearin drives the arbor, whereby the elements of the laminated structures are drawn from their respective reels and the laminated structures wound onto the arbor one within the other.

The amount of material wound onto the arbor is determined by the relative positions of the stops 44 and 44a-on the plate 43. Obviously, when stop 44 is adjusted from the position of Fig. 1 in a counterclockwise direction along the edge of the plate 43 the movement of the crank 39 between the stop pins 46a and 46 will be substantially lessened. When the stop 44 is adjusted the plate 62 of the cam 56 is adjusted accordingly so that the high surface of said cam will correspond with the distance from stop pin 46a to stop pin 46.

At the beginning of the described movement of the crank, turning of the shaft 48 in a clockwise direction results in a corresponding movement of the cam 56 with the shaft 40 and at such time the shoe 68 of arm 69 while on the high surface of the cam is closely adjacent the shoulder there-- '6 of, thus as the operator moves the crank the initial movement carries the cam 56 from under the foot 68 permitting the lever 69 to rock down to the position of Fig. 5. This, results in a drop- 5 ping of the push rod 1| and a swinging movement of the arms 16 and parts carried thereby to a lower position as in Figs. 5 and 7. From these figures it'will be apparent that at this time the rollers 18 and 83 are no longer clamping the 10 strips of paper and foil so that there is no excessive drag as the latter are wound about the arbor. At this same time the rod 98 is on a higher portion of the cam 51 so that the blade 94 is in elevated position. As the crank 39 approaches the stop pin 46 the high portion of cam 56 enters under the foot 68 shifting the push rod 'H upwardly and rocking the arms 16 on pivot 11 to carry the roller 18 into a position to clamp the 20 various strips of the two laminated structures against the roller 83. As this is accomplished the high portion of cam 51 moves from under rod 98 and the spring I63 having been tensioned acts through the lever III! to draw said rod downwardly and cause the blade '94 to cut the strips.

This cutting-of the respective laminated structures 26 and 21 takes place at the upper and lower forward corners ll6 and II! respectively of the anvil 82. Due to the presence of this anvil the 30 respectively laminated structures are separated and caused to travel paths of different lengths. Thus at the time of cutting operation the corner 6 of the anvil is a greater distance from the arbor 25 than is the comer portion I I1. There- 5 fore, when the cut is made the cut end of laminated structure 26 extends beyond the cut end of laminated structure 21 as in Fig. 8 and when such ends are wound into the condenser proper there is no danger of a short between the foil of laminated structure 26 and that of laminated structure 21.

At the time of the cut, roller.18 is clamping the various strips against'the roller 83 so that there is no danger of the strips falling out from between the various guides when the pull through the arbor is released. Now the operator springs the crank arm 39 to pass the stop pin 46 and moves the crank arm over until it again engages the stop pin 46a. This movement results in the wrap- 50 ping of the label into and about the condenser so that the latter iscompleted andfurther results in a shifting of the cam 51 for such a distance 'as to raise the blade or knife 94 to an elevated and inoperative position. 1

Since the laminated structures were cut at different points in their length, it will be apparent that as they are again fed forward by operation of the crank 86 their lead ends also will be disposed one beyond the other. Thus the lead end of the laminated structure 21 will extend beyond the lead end of the laminated structure 26 so that there is no danger of a short circuitbetween the foils ofthese structures at their leading ends.

Thus it will be seen that with the present machine 5 the cutting of the laminated structures at different distances -from the arbor results in the lead end of the laminated structure 21 being ahead of the lead end of the laminated structure 26 of each condenser and the tail end of the laminated structure 26 of each condenser extending beyond the tail end ofthe laminated structure 21.

Depending on which structure travels the longer path and as to where the cut is made, either structure may have its cut end extending beyond the cut end of the other. The present mechanism so functions that it is not necessary for the operator to open a laminated structure at each end of the condenser and tear of! a portion of the foil. Thus the machine provides for the-rapid production of condensers and also for condensers of uniform capacity since in each condenser produced with the present machine the full predetermined amount of foil is present.

The crank arm 86 is easily sprung by the stop pin 81 and in fact the operation of the machine is such that when the crank 39 is in use, as in moving between the stop pin 46a and the stop pin 46, the crank 86 simply drops ofl or is moved from the stop pin 81 to a position against the stop arm 93. Thus the initial feeding of the laminated structure to the arbor by operation of the crank 86 is limited to a set amount and the feeding ofthe structure thereafter by operation of the crank 39 is for a fixed amount. For these reasons condensers made on the machine of the invention are of uniform capacity.

Since the machine of the invention cuts the laminated structures so that at each of its ends the end portion of one extends beyond the end portion of the other, the previous method of open ing the laminations and tearing out a portion of foil is unnecessary. Accordingly with the present machine foil and paper are not wasted as in the tear-out method previously practised and increased production speed is attained. Further, condensers made on the present machine are produced free .from finger moisture as the operations are entirely mechanical.

It is also noted that relative adjustments of the stops l4 and a will serve either to lengthen or shorten the winding movement of the crank and the amount of material wound onto the arbor.

Thus it will be seen simply by adjusting the stops the movement of laminated structures to said arbor, means to turn said arbor to wind said structures thereon one within the other, and means for cutting said structures at spaced edges of said anvil whereby the cut end of one structure extends beyond the cut end of the other structure.

2. In a condenser winding machine, an arbor, an anvil having a pair of surfaces of which one is closer to the center of said arbor than is the other, means for feeding a pair of laminated strips to said arbor one at each surface of said anvil, means for turning said arbor to wind said strips thereon one within the other, and means for cutting said strips at the respective surfaces of said anvil whereby the cut end of one strip extends beyond-the cut end of the other.

3. In a condenser Winding machine, a pair of rollers of which one is movable to and from clamping relation with the other, means for supplying a pair of laminated strips between said rollers, an arbor forwardly of said rollers, means for rotating one of said rollers while they are in clamping relation to feed said strips to said arbor, means for rotating the arbor to wind said strips thereon one within the other, means whereby the movable roller is moved out of clamping relation with the other roller as said arbor is turned, means to move said movable roller back into clamping relation with the other roller on predetermined rotation of the arbor, and means then automatically operable to out said strips at a point between said rollers and said arbor.

4. In a condenser winding machine, a horizontally disposed arbor, means for supplying a pair of laminated strips to said arbor, means for turning said arbor to wind said strips thereon one within the other, an anvil over, and under which said strips may be fed, means for cuttin said strips at the respective upper and lower forward corners of said anvil, and said anvil disposed with one of said corners at a greater distance than the other from said arbor whereby the cut end of one strip will extend beyond the cut end of the other strip.

5. In a condenser winding machine, an arbor, a pair of clamping and feeding rolls rearwardly of said arbor, means mounting one of said rolls for movement toward and from clamping and feeding relation with the other thereof, means for turning one of said rolls for feeding mate rial toward said arbor while said rolls are clamping such material between them, means for turning said arbor to wind such material thereon, means for moving said one of said rollers out of clamping relation with the other thereof while said arbor is being turned and to move it back into clamping relation on predetermined turning of said arbor, and means then operable to out said material at a point between said rolls and said arbor.

6. In a condenser winding machine, an arbor,

a pair of clamping and feeding rolls rearwardly of said arbor, means mounting one of said rolls for movement to and from clamping and feeding relation with the other thereof, means for turning one of said rolls to feed a pair of strips toward said arbor while said rolls are clamping said strips between them, means intermediate said arbor and said rolls and separating said strips, means for turning said arbor to wind said strips thereon one within the other, means for moving said one of said rollers out of clamping relation with the other thereof while said arbor is being turned and to move it back into clamping relation on predetermined turning of said arbor, means then operable to cut the strips at the place of separation intermediate the rolls and arbor, and said means effective to out said strips so that the cut end of one strip extends beyond the cut end of the other strip.

'7. In a condenser winding machine, an arbor adapted to be turned to wind laminated strips thereon one within the other, means for turning said arbor including a crank and intermediate gearing, a pair of stops of which at least one is adjustable relative to the other, a cutter having a normal retracted position and adapted for cutting the strips, means whereby as said crank is moved from. the first of said stops material from said strips is wound onto said arbor and as said crank approaches the second stop said cutter is actuated to out said strips, and means whereby as said crank is thereafter moved forwardly from the second'stop toward the first stop the cut ends of said strips are wound onto said arbor and said cutter is moved back to normal position.

8. The combination as in claim 6 including an adjustable stop mounted on said machine in the path of movement of said means for turning one of said rollers for determining the amount of turning of said one of said rolls and thereby the amount of feed of said strips bysaid rolls.

9. In a condenser winding machine, a longitudinally divided two part arbor, means at the mer tv to the blade.

inner endof one of said arbor parts and mount .ing the same for rotation, means to rotate said means and arbor-part, means mounting the other mentioned part and for rotation therewith when of said arbor parts for longitudinal'movement to and from overlapping relation with the first in overlapping relation therewith, an ejector ineluding a, plate extending radially from and straddling the first mentioned arbor part adjacent the inner end thereof, a rod connected with said plate and arrangedparallel with the arbor, means extending radially of said arbor and mounting said rod for longitudinal movement to permit the plate to be moved along said arbor part toward and from the outer end, thereof, and spring means for actuating saidrod in one direction.

10. The machine as inclaim 1 wherein said cutting means comprises a blade and a'loadand-fire mechanism for imparting cutting movel1. T he machine as in claim 5 wherein the V means for turning the arbor includes a shaft, a "cam; on said shaft, and means riding on said cam and controlling the position of the movable roller relative to the other roller.

' 2. The machine as in-claim 6 wherein the' I means for turning the arbor includes a shaft, a

cam on said shaft, and means riding on said cam. and controlling theposition-of the movable rollerrelative to the other roller. 13, In a condenser winding machine; an arbor adapted to be turned to wind laminated strips I thereon one within the other, a pair of clamping rolls rearwardly of said arbor, means mounting one of said rolls for movement to and from -clamping and feeding relation with the-other thereof, means for turning one of said rolls to feed. a pair of laminated strips toward said arbor while said rolls are clamping said strips between them, means for turning said arbor. including a cran'k', shafts and gearing, a pair of steps of which at least one is adjustable relative to the other, a-cutter having a normal retracted po- I 'sition and; adapted for cutting said strips at a a place between the rolls and the arbor, means n whereby :as said crank is moved from the first of said stops said movable roll moves from clamping relation with the other roll' and said arbor i's turned to wind said strips thereon and as the j approaches the second of said stops said file of this patent;

" lilumber 10 roll is moved back to clamping relation and said cutter is actuated to out said strips, and means whereby as'said crank is thereafter moved forwardly from the second stop toward the first stop the cut' ends ofsaid strips are wound onto said arbor and the cutter is moved back to normal position.

14. The machine as in claim 13 including a cam on a shaft of the means for turning the arbor, means riding on said cam and controlling the position of said movable roller, and said cam including a part adjustable in accordancewith the position of said adjustable stop.

15. In a condenser winding machine, an arbor, means for supplying a pair oflaminated strips to said arbor, said arbor 'comprisinga pair of elongated parts, means mounting one of saidpartsfor longitudinal movement -a from overlap-.

ping relation with the other part to permit said laminated strips to be carried over said other part, means to then fold said strips to draw the leading end of one rearwardly with respect to the other and to also press said strips toward said other arbor part, said one arbor part then movable back into overlapping relation with the other arbor part and over said strips, means to drive said other arbor part and thus the entire arbor when its parts are in overlapping relation to wind said strips thereon, and means automatically operable on predetermined turning of said arbor to out said strips at different points in their lengths whereby the end'of one strip extends beyond the end of the other.

.-JOBEPH JLGALLA. REFERENCES CITED The following references areof record in the I UNITED s'rA'rEs PATENTS

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