US2201233A - Means for controlling the power drive in a winding or other machine - Google Patents

Description

May 21, 1940. R. McC. JOHNSTONE 1, MEANS FOR CONTROLLING THE POWER DRIVE {N -A WINDING OR OTHER MACHINE ori inal Filed sept; 10, 1937 4 Sheets-Sheet '1 INVENTOR i ATTORNEY May 21, 1940. R. we. JOHNSTONE 2,201,233

MEANS FOR CONTROLLING THE POWER DRIVE IN A WINDING OR OTHER MACHINE Original Filed Sept. 10. 19:57 4 She ets-Sheet 2 ATTORNEY R. M C. JOHNSTONE 2,201,233

MEANS FOR CONTROLLING THE POWER DRIVE IN A WINDING OR OTHER MACHINE May 21, 1940. I

Original Filed Sept. 10, 1937 4 Sheets-Sheet 5 INVENTO R Fokr/flf/fl/mshne ATTQRN E Y May 21, 1940.

R. M C. JOHNSTONE MEANS FOR CONTROLLING THE POWER DRIVE IN A WINDING OR OTHER MACHINE 4 Sheet-Sheet 4 Original Filed Sept. 10, 1937 ATTORNEY Patented May ZI, 1940 endless MEANS FOR, CONTROLLING THE rowan l mlvn IN A WINDING on orrnaa MA-.

Robert McC. Johnstone, Short mus, N. a, asignor'to Gamer-on Machine Company, Brooklyn, N. Y., a 'corporation of New York Original application September 10, 1937, Serial power to be supplied to said machine under difextends through and projects beyond side frame ferent operating conditions thereof. 33. Mounted at the outer end of'shaft 35 is a This application is a division of one filed Seplever 3'1 whereby the head and spool supports tember 10, 1937, Ser. No. 163,190. are shifted through arcs of 180 degrees after each In the accompanying drawings the invention spooling operation. Keyed to shaft 36 'at the is disclosed in a concrete and preferred form in outer surface of side frame 33 is a locking disk which 38 which, as shown in Fig. 4, is provided with Fig. 1 is a side elevation of the machine lookdiametrically opposite notches 39 for receiving ing in the direction of arrow 1 of Fig. 3; a spring-pressed bolt or detent 40 in a housing Fig. 2 is a fragmentary section on the line 4| mounted on the dde frame, the head being 2-2, Fig. 1; thereby locked in a stationary position after each Fig. 3 is a top plan view of the same, parts rotational shift. Oppositely presented cutter being broken away and parts shown insection; blades 42 are suitably arranged on the head for Fig. 4 is a side' elevation of an upper fragsevering the tapes or strips between theillled and mentary portion of Fig. 1 taken from the opposite empty spools in the manner described in parent side of the machine; 1 application Ser. No. 163,190. Rigidly connected Fig. 5 is a longitudinal vertical section of the to head 35 at opposite ends within side frames machine on the line 5-5, Fig. 3; 33 and 34 are bearing frames or spiders 43 which Fig. 6 is an enlarged vertical section on the carry fixed bearing members 44 and removable line 66 of 'Fig. 3, showing the slip friction bearing caps 45 for journaling the spool-supportclutch whereby increased power is applied to the ing arbors 48, said bearing caps being pivotally tapes at the beginning of each winding operation; mounted on spider frames 43, under the con- Fig. 7 is a fragmentary front elevation 9; the straint of toggles 46 which are stabilized in either machine showing the power-controlling devices; position of the cap bearings by means of tension Fig. 8 is an enlarged front elevation of the springs 41. I I lower left-hand portion of Fig. 7, with the con Suitable means for supplying power to the trols in changed positions and 1 machine, may be provided by a belt-driven pul- Fig. 9 is a view similar to Fig. 8, showing the icy '16 (Figs. 1, 3 and 'l) constructed and arranged controls in other positions. to transmit power intermittently through aclutch Referring to the drawings, it will be seen that l6ato a spur pinion 11. An axial thrust cam Fig. 1 shows a roll or web of material 25 which, 18 for actuating said clutch may be operated by passes over a power-driven roller 26 to a spreader a sprocket 19 over which a chain 80 is movable 21. As shown in Fig. 5, said web passes from ,by a treadle 8|. A gear 92 is driven by pinion spreader 21 to and over a guide roller 28 and 11, said gear being keyed to a transverse shaft from thence under a slitter drum .29 between 83 upon which drum 29 of the web-slitting device which and a transverse series of cutters 39, the is mounted. Keyed to shaft 83 'on the opposite 40 web is slitted longitudinally to form a multiplicity side of the machine, is a power-distributing gear of strips or tapes. As the strips or tapes pass 84' which meshes with a gear 85 (Figs. 1, 3 and upwardly with their contiguous lateral edges in 5). A driving sprocket 86 which is driven by juxtaposition, alternate strips or tapes are dispur gear 85 is connected by a chain 8'|,to a verted over a lower guide roller 31 to a lower follower sprocket 88. Afriction coupling 89 (Fig. spooling mechanism to be hereinafter described 2) is interposed between sprocket 88 and roller while the remaining strips or tapes continue their 26 (Fig. 1). A spur gear 90 (Figs. 1 and 6), drivmovement upwardly about an upper guide'roller en by spur gear 84, transmits power through a 32 to an upper spooling mechanism. In this way slip friction clutch 9| to a spur gear 92. A small the strips or tapes are formed into separate pinion 93 (Fig. 1)-which is driven by gear 92, is groups of laterally-spaced tapes arranged in a keyed to a spindle 34 Journaled in side frame 34, predetermined order in which they are to be sepa spurpinion 95 being also keyed to spindle 94 arately spooled. n on the inner side of said frame for driving the The upper and lower spooling mechanisms are upper spooling mechanism. A similar train of substantially similar in construction so that a gears comprising gear 96, slip friction clutch 9'1 63 Divided and this application May 11, 1938, Serial No. 207,259

4 Claims.

This invention relates to a method of and means for controlling the power drive in a winding or other machine, and has for its main object and feature the regulation ofthe amount of description of the upper one will serve for both. Journaled in opposite side frames 33 and 34 is a transverse head 35, said head being provided at one end with a shaft or journal 36 (Fig. 3) which (Fig. 3), gear 88, and gear 88, connects power distributing gear 84 to a pinion I00 for driving the lower spooling mechanism. Driving pinions 85 and I00 are suitably lccatedto mesh with gears 66 on the outer ends of winding arbors 48 as said arbors are moved successively into winding position in the upper and lower spooling mechanisms by successive rotational movements of spider frames 48. Keyed to drum shaft 88 is a spur gear IOI (Figs. 3 and 4), said gear being connected to pull rollers 8I and 32 for the upper and lower spooling mechanisms, respectively, through a gear I02 on an intermediate shaft I08, friction block I04 keyed to shaft I08, pinion I08 freely rotatable on shaft I08 under the adjustable pressure of a disk I06, an idler I01, and pinions I08 and I08, the latter of which are carried by pull rollers 8| and 82 (Figs. 3 and 4).

In machines of the character described above, I

whenever the winding operation is interrupted for any purpose such, for example, as the replacement of filled winding cores or spools by empty ones, there is a tendency during the rest periods for the materiaito cling to the rollers and drums which guide said material through the machine.

This condition is especially noticeable in cases where the materialis. coated with adhesive and the tacky surfaces are permitted to come to rest in contact with said rollers and drums. conapplication of power to a running normal when the material is running freely through the machine. For this purpose; a cam-operating treadie I I0 shown at theleft in Fig. 7 to be normally held in elevated position by a yieldable hanger III, is connected by an inclined link II2 to one arm'of a bellcrank II8, the other arm of said bellcrank being connected by a link rod I I4 to one arm of a second bellcrank I'I5. Extending upwardly from the other arm of the second Bellcrank is a rod II8 which is connected at its upper end to the outer end of a cam actuating arm -III. As shown in Fig. 3, the arm I" when depressed imparts an angular displacement to a cam member I I8 and a consequent axial displacement to a complementary cam member 8., As

shown in Fig. 6, the outward displacement of cam member II8 compresses a spring I and thereby increases the pressure between friction disks 8i and thus provides for momentarily increasing the driving power delivered to the gear 82 whenever the treadle II 0 is depressed for delivering more power to the driving gear 83 for the upper spooling mechanism. As the machine accelerates,

gear 88 moves in a direction counter to the angular displacement of cam I I8 and operates thereon by friction to return it to its normal position and thus permits the spooling operationto continue under normal power. A similar increase in the driving power of the pinion I00 for the lower spooling mechanism, may be provided for as follows. A radial arm I2I on cam member H8 is connected by a rod I22 to a radial arm I23 on a cam member I24 of the lower spocling mechanism. Cooperating with cam member I24 is another cam member I25, a relative turnin movement between said cam members serving to increase the yieldable pressure applied to friction coupling 8! between spurgears 86 and 88. For the purpose of maintaining oscillatable cam members I I8 and I25 in definite rotational relation to each other while at the same time permitting them to be displaced axially to a limited extent, a rod I26 is mounted in sideframe 34 (Fig. 3), a perforated connection plate I2'I being mounted on the outer end of said rod with a limited amount of lateral play. An arm I28 projects radially from clutch member H8 and is pivotally connected at its outer end to plate I21 through one of the perforations at a distance fromone endof a connecting rod I28 which is connected thereto through another perforation. The other end of rod I28 is pivotally connected to the outer end of a radial arm I30 carried by cam member I 25.

The starting and acceleration controls are shown in Figs. 1, 7, 8 and 9. Pivotally mounted on a pin I8I at the bottom of the front end of side frame 33 is a rock bar I 32 to which is connected a spring I33 which tends to retain the rock bar in one or the other of two extreme positions assumed by said bar at diflerent times. Projecting normally from the rock bar is an arm I34 which is provided with an inclined upper edge I35 for temporarily preventing the downward movement of power treadle 8I until after cam-controlling treadle IIO has been depressed to increase the power transmitted to the spooling mechanisms in the manner described above. A stop pin I38 which projects forwardly from the side frame 38 in the angle between the left-hand arm of rock bar I32 and stoparm I34 is arranged to limit the movement of said rock bar in either a a clockwise or counterclockwise direction. 'Secured to the inner wall of side frame 33 is a bracket I31 with a stop or lug I38 for limiting the upward movement of treadle 8!, said bracket being further provided with a downwardly inclined shoulder I38 for retaining treadle 8Tin depressed position, while the machine .is running.

While the machine is at rest, the cam and power controls are in their relative positions shown in Fig. 7, the downward movement of power treadle BI being blocked. by stop arm I34 which is then in its extreme position toward the right. To

start the machine after installing empty spool assemblies to replace the filled spool assemblies, treadle H0 is depressed to increase the powertransmitting capacity of friction couplings 8| and 81 through which the spooling mechanisms are driven while at the same time removing stop arm I34 from the downward path oi treadle 8I. As indicated in Figs. 8 and 9, the downward movement of power-controlling treadle 8| moves rock bar I32 in a clockwise direction until the tension of spring I33 becomes active to the right of pivot I 3| when said rock bar is actuated thereby to come into engagement with stop pin I38. After treadle 8I has been sumciently depressed to be anchored below shoulder I38 where it remains until the spooling operation has been completed, treadle H0 is permitted to reassume its upper position topermit the winding operation to continue at normal running speed. The relative positions of the parts while the machine is running is shown in Fig. 9. As soon as the spoofing operation has been completed, a slight downward and lateral displacement of treadle 8| serves to release it from the shoulder I38. As the treadle moves upwardly to its initial position shown in Fig. '7 it imparts a slight counterclockwise movement to stop arm I34 which is immediately returned to its initial position (Fig. 7) by the spring I33.

Iclaimt; e Y

1. In a spooling machine for tapes and like articles, the combination with means for guiding the tapes through the machine for delivery to the spooling mechanism, means for starting the machine, spooling mechanism for said tapes, and means operating through the spooling mechanism for applying additional power only during the acceleration of said machine from rest.

2. In a machine for spooling tapes and the like, the combination with a power drive for the machine, spooling mechanism for the tapes, power-transmitting connections between said power drive and said spooling mechanism, means for controlling the transmission of power from said power drive to said machine, and means under the control of the power-controlling means for increasing the power-transmitting capacity 01 said power-transmitting connections, only during acceleration of said machine from rest.

stopping means for supplying additional power to the spooling mechanism only during the acceleration of said machine from rest. 1

4. Ina winding device in which a winding arbor for winding flexible material is alternately started and stopped at intervals, the combination with a slip friction clutch for driving said arbor, of cam means and connections to said clutch adjustable when the clutch is at rest to increase the frictional contact of the elements of said clutch, said cam means being automatically operated throughsaid connections-by angular displacement of said clutch regardless of speed to automatically decrease the frictional contact of said elements.

ROBERT McC. JOHNSTONE.

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