US1470927A - Device for regulating the cut of rod-forming cigarette machines - Google Patents

Description

Get. 16,1923. E,4?0,927

E. KOERNER DEVICE FOR REGULATING' THE OUT OF ROD FORMING CIGARETTE MACHINES Filed Nov. '25, 1921 2 Sheets-Sheet 1 glwuemtoz i .ZwaZdffUernen abtovnws,

EAWEZ? @ctt. 16 9 1923.

E. KQERNER DEVICE FOR REGULATING THE cm." OF ROD FORMING CIGARETTE MACHINES Filed Nov. 25, 1921 2 Sheets-Sheet 2 relative motion of thecam disc which ac.

Patented Oct; 16, 1923.

' Leer? EWALD KoEauER, or Dn-Esnrims RarsNv, assrenoa TO UNITED oreertarrn MA-V CHINE 00., INQ, or LYNGI-IBURG, vr'ae rma, A eoRPortA'rIoN o1? IRGJNIA; c

EDEVICE roa REGULA'IING Tit-incur or Ron-romaine CIGARETTE MACHINES.

Application filed November 25, 1921 To all whom it mayconcem: Be it known that I, EWALD KOERNER, a citizen ofthe Republic of Germany, and resident of Dresden, Germany, have invented certain new and useful Improvements-in Devices for Regulating the Cut of Rod- Forming Cigarette Machines, of which the following is a specification.

The object of the invention is a device for regulating the cut of rod-forming cigarette machines, consisting in the provision of an oscillable ring in which is guided the actuating lever of a two-part displaceable lock coacting with a worm drive, which lever when the ring is swung out of its middle position effects movement of'this lock and effects a tuates the cutting means. I The cut adjustingmechanism for rod cigarette machines are known, wherein by displacement of the carriage actuating means or by turning a wheel fixed on a countershaft, or by the interposition of a planetary gearing the cut may be manually adjusted corresponding to the advance or retardation of'the mouth piece in consequence of the stretching or gliding ofthe cigarette rod. These known devices have the following disadvantages :The displacement of the carriage actuating means provides but a very limited adjustment capability and loads the reciprocating parts, resulting in rapid wear of the driving members. The adjustment capability is also very much limitedrinth'e case where a wheel is'driven on a counter; shaft, whereby inclined claws are advanced to cause the counter-shaft to rotate. The interposition of a planetary drive in which the planetary wheels maybe displaced in a circle unlimited by hand has the disadvan= ta'ge that the motion and power tobe transmitted to thecam shaft is conducted through several wheels whereby loss of power through the interposed wheels results. In this case wear is also large and the free play,

the so-called lost motion, between the drive ing shaft of the machine and the cutting shaft is unnecessarily large even in new ma.-

chines. This lost motion-. causes noise and also affects accuratecuttlng, sotthatfrequently cigarettes uneven inleng th are cut off. By the present invention these disadvantages are obviated.

Serial No. 517,773.

The subject matter. of the invention is illustrated on two sheets of drawings in two forms, by Fig. 1 inside elevation and by Fig. .L-in partial longitudinal section. Fig. 3 1s aspecial view of the feed lock and the worm connected therewith in plan, Fig. 2

is the same along-the-section aa. Fig. 5

is a schematic representation of the guide ring with the feedlock and the worm drive in three different positions IIII.

Revoluble inthe bearing block 1 is the shaft 2-upon which is fixed the cam member 3 for actuating the carriage which supports the cutting'means. Loose on the shaft 2 is the hub 40f a gear wheel 5 which is con.- tinuously driven from thelmaehine shaft 26 by the gear wheel 27. The hub 4 carries a opposite directions. to form two arms 8 and 8 which serve as a bearing for the shaft 6 upon which is fixed a worm 6 and a locking wheel 10. The arm 7 mounted on the hub 4 carries a counterweight '20 to obtain motion without shock. The-worm 6 engages a wormwheel 9 fixed on the shaft 2. Engaging into the teeth of the, locking wheel 10 are oppositely arrangedpawls 11 and 11 under the action of springs 13, which pawls are revoluble about'studs 14. The studs are mounted on a double armed lever 12 which is oseillable on the shaft 6 of the locking wheel 10. In the iriiddle of the double armed lever 12 is an arni15 at the free end of which there is revolub'ly mounted a ball-like roller 16. The roller 16 is guided in an upright ring 17- which is oscillable about a stud 21 carried clamp the arms "7 and 8 ofwhich extend in,

The arm 8 is forked in the bearingblocks 22; The guide ring '17 surrounds the worm 6, the worm wheel 9 and the counter-weight 2 0 and is provided above with ahandle23. Consequently the ringinay be swung manually from its middle position laterally to the right or to the left. In its middle position the ring is held bypres'sure springs 24 which act upwardly againstthe arms of a double lever 25 pro- -videdon the ring; Stops 26 provided on the arms of thedouble lever 25 prevent the ringjfrom being swung out too far laterally The operation 'of the device is as follows:

By means of the gear wheel 2'7 mounted on i the machine shaft 26, the gear wheel 5 which isloose on the shaft2 is continuously rotated. The gear wheel entrains the arms 8 and 8 connected with its hub, also the worm 6 which bearsbetween these arms and the worm wheel 9" which" engages with the rotated about its axis.

gear wheel 5 entrams the arm 7 which is worm 6, without however the Worm being Furthermore the .tlien the guide ring 17 is moved by actuation of the handle 23 so far to the right or to the left until this movement-is limited by one or" the stops 26. The roller 16 running inthe guide ring is deflected in the upper part of its course in the ringtothe right or to the left from its middle position by reason of the inclination of the ring to the extent that the ring is laterally oscillated (positions I j and HI, Fig.5) ZIn'thelower part of its course however, the roller 16, following the guide path of thering, always returns to the middle position (Fig. 5, position 2) so that by thecoursing'of the roller 16 in the inclined ring 17 the double lever-l2- con nected therewith is swung aboutits axis and always to that side to which the ring 17 Was oscillated. By this movement of the double lever 12 in the inclined position of the same one or the otherofthe pawls 11 and 11 attached thereto is actuated and locking wheel 10 is advanced by one of the pawls to the right or to the left dependent upon-whether the guide ring wasgoscillated tothe right .or to the left, while the opposite pawl is raised by a nose 18 provided on a fixed bearing arm 8. The resulting rotation of the ratchet wheel 10 is imparted to'the worm 6 fixedto the shaft of such wheel 10, and the rotation of this worm effects rotation of the worm wheel 9 fixed to the shaft 2. Inasmuch as thecam member 3 is fixed to the shaft 2"ro'- tation of such cam member 3 also results'in relation to sleeve 4, in a direction which depends on the direction ofo'scillation-of the ring 17. It is thus possible to impart to the rotary motion of theica'm member 3, which actuates thecarriage ofthe' cutting knives,

an advance motion or a retardation depend ent on whether thesring 17 is swung to'the right or to the left. By virtue of the fact that the inclination of the ring 17 is limited by the stops 26 an excessively: rapid dis placement of the cam-member 3 and'of the cutting means is not'possible, although this is possible with the devicesof the'priorart which leads to the production of defective cigarettes. Upon releasing the-handle 23 of the guide ring 17 the latter snaps under the influence of the pressure springs 24L into'its middle position and the displacement of the cam member 3 ceases. l u I claimi I 4 1;. In mechanism of the class described, a rotary actuating member, a rotary driving member therefor,- the actuating andQdr1vmg members being angularly movable in relation to eachother, gear ng arranged to rotate'with said members and connecting them to ether andop eraole to vary the angular relation of the members, said gearing having an operating member and a manually operated controlling ,member, said con trolling vmember being adjustable .and co operating with said operating memberto causesald gearing towary the relative an gular position of theactuating member and driving member.

2. In mechanism of theclass described, a rotary actuating member for ,the cut-off mechanism of cigarette machines, a rotary driving membertherefor, the actuating and driving members beingangularlymovable in relation .toeach' other, gearing arranged torotate withsaid members and connecting them together and operable to relatively rotate the'niembers, said gearing having an operating 1l1C111bQ1,tl1tl a manually operated non-rotating controlling member, said controlling member cooperating with said gear ing-op'erating member and being adjustable I to di'llereutplanes intersectingtheaxis of rotation of said actuating and driving members tocause said gearing to vary the relative tingular'positions thereof;

3.;In mechanism of the class described, a V

rotary actuating member for the cut-off mechanism of cigarette machines and a driving member therefor arranged torotate on a common axis v gearing'iconnecting said members and serving to connect and adjust them angu-larly in relation to each other and also rotating. with said. members, ratchet "mechanism for driving said gearing and mechanismof cigarette machines and a driving membert-hereior arranged torotate on a common; axis,"gearmg connecting said members and serving to connect and adjust them"angularly in relation to each other and also rotating-withsaidmembers, a two-way ratchet mechanism for driving said gearing 1n either of two directions and having an operating member projecting radially and arranged to oscillate in a plane of said axis of rotation, and a controlling ring engaged by said operating member, throughout its rotative movement, said ring being manu-' ally ad ustable in different planes to cause oscillation of said operatingmember during its rotation to advance or retard said actuating member in relation to its driving member.

5. In mechanism of the class described, a shaft, an actuating member secured thereon, a driving member rotatably mounted on the shaft, a Worm and, Worm gear connecting r said driving member and shaft, ratchet mechanism arranged to oscillate in a plane of the shaft axis and to drive the Worm to adjust said actuating member angularly in relation to the driving member, an operating arm extending from said ratchet mecha-,

nism and normally moving in afplane per pendicular to the shaft axis, and a controlling annulus engaging said arm and pivoted at one side of the shaft axis and movable on its pivot to cause said arm to reciprocate during its rotation and vary the angular relation of said actuating member and its driving member. 7

6. In mechanism of the class described, a

shaft, an actuating member secured thereon, a driving member rotatably mounted on the shaft, a Worm and Worm, gear connecting said driving member and shaft, two-Way ratchet mechanism arranged to oscillate in a plane of the shaft axis and to drive the Worm one Way or the other to adjust-said actuating member angularly in relation to the driving member, an operating arm extending radlally from sald ratchet mechanism and normally moving in a plane perpendicular to the shaft axis, and a controlling annulus engaging said arm throughout its rotative movement and pivoted in said plane at one side of the shaft axis and movable on its pivot to cause said arm to reciprocate during its rotationand vary the angular relation of said actuating member and its drlvlng member in either dlrection. I

7. In mechanism of the class described, a

' shaft, an actuating cam body secured thereon, a sleeve rotatablymounted on the shaft,

means for driving the sleeve constantly, a

Worm gear on said shaft, aworm rotatably mounted on said sleeve and engaging the Worm gear, ratchet mechanism fordriving the Worm, an operating arm extending from the ratchet mechanism and-normally revolving in a plane perpendicular to the shaft axis, and a controlling ring surrounding the g shaft and having a track for said arm, said a ring being pivoted in the plane last mentloned at one side of the shaft and adjustable about its pivot in oblique planesateither' Worm gear, oscillata-ble ratchet mechanismu for driving the Worm in either rotative direction, an operating arm extending from the ratchet mechanism and normally revolving in a plane perpendicular to the shaft axis, and a controlling ring surrounding the shaft and having a track for said arm, said ring being pivoted in the plane last mentioned at one side of the shaft and adjustable about its pivot in oblique planes at either side of said perpendicular plane to cause oscillation of said operating arm to advance or retract said actuating member rotarily in relation to the driving sleeve in accordance With the positionin of said controlling'ring.

Signed at Dresden, Germany, this 28th day of October, A. D. 1921.

- EWALD KOERNER.

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