US1888774A - Oblique cut-off - Google Patents

Description

Nov. 22, 1932.

R. E. RUNDELL OBLIQUE CUT-OFF File'd Feb. .4. 1931 4 Sheets-Sheet 1 NOV. 22, 1932. RUNDELL 1,888,774

OBLIQUE CUT-OFF Filed Feb. 4, 1951 4 Sheets-Sheet 2 FIG. 2

Nov. 22, 1932. R. E. RUNDELL OBLIQUE CUT-OFF Filed Feb. 4, 1 931 Sheets-Sheet 3 INVENT War /2Wm% ATTORNEY Patented Nov. 22, 1932 UNITED STATES MACHINE & FOUNDRY COMPANY, A OQRPORA'FION' or. new JERSEY,

" OIBLIQUE GUT-OFF Application filed February 4, 1931. Serial No. 513,399.

This invention relates to cutoffs for continuous rod cigarette machinesfand particularly to cutoffs of the type in which the cut- 1 off knife travels in an orbitalpath oblique to the cigarette rod so that the cutting edge of the knife has a movement along the rod sufficient to compensate for themovement of the rod. An example of such a cutoff is that disclosed in my prior Patent No. 1,487,028,-granted March 18, 1924:. Themain object of the present invention is to'improve this type of cutofi. To this end it is an object of the invention to provide a cutoff which has simple rotary motion without any reciprocating parts while permitting ready fiIld'COIIVEIllQIlfi adjustment of the cutofi knife for wear; and

with adjustment, and in which a relatively simple construction is employed. Stillanother object of the invention is to'provide a l I v construction in: which the above mentioned rotating disk type knife can be readily-interchanged with a blade of the type lmown asa wafer or eccentric blade which is fixedly secured to a carrier rotating on an axis oblique to the cigarette rod. To this end the disk. cutoff knife is driven from a stationary gear coaxial with the carrier and about which the carrier rotates thus driving gearing on the 7 any radial movement during operation; "Still another object is to reduce the weight ofjthe.

parts which are radially adjusted to compensate for wear thereby reducing the weight which is movedoif center and therefore is to some extent unbalanced. A further object is to equip the cutofl with a force feed lubrication system and to provide it with an oil tight connection between the carrier andthe bearing for thecarrier shaft.

With these and other objects invention consists in certain constructionsand combinations which will be hereinafter fully described and then specifically set [forthin the claims hereunto appended. V

In the accompanying drawings which a part of this specification and in whichlike characters of reference indicate the same like parts: U p 7 Fig. 1 isa frontelevation'in sectionof the improved cutoff; i

Fig.2 is asideelevatioxipartly in section of the cutoff 'shownin Fig. 1;

Fig.3 is a plan view'ofthe cutofi inFig .1

Fig. 4 is a" f'ront awash 10f uif knife carrier .disk and associated parts shown in Fig. 1;

P ENTfoFFm f RUPERT E. RUNDELL, 0F ROCKVILLE CENTER, ivnw YonxLAssreNon To "AM RIC N in view, the

Fig. ,5 is a1 sectional side elevation ofthe device shown in Fig. 4;

. Fig. 6 is aidetail view onthe line of Fig. 4 of certain parts shown therein; s

..Fig. 7 is an end view of a modification of j thedisk carrier head also having a circular knife;

Fig. 'Sais a sectional side elevation of-the .mechanism shown in Fig. 7, taken on line 9 is anend view of another modification of the disk carrier head carrying a wafer lmife blade; V 1 I j Fig." 10 is a sectional side elevation of the disk carrier shown in'Fig. 9, taken on line 10,10;and m l Fig. 11 is a detailed view taken on line of Fig. 9 showing the manner of supporting :the wafer knife and'thecarrier disk. I

In carrying the invention into effect, there is providedia cutofl' having a reciprocating ledger tube, a cutoff knife',a carrier for said knife, means'for rotating said carrier on an axis inclined to the cigarette, and means for adjusting saidknife radially of the carrier'to compensate for, wear. In the best construetionscontemplated; the cutoff knife may have the form of'a' disk knife or a waferxblade,

andjthe means for adjusting the cutofl knife may include a knife carryingrslide adjustably mounted on the carrier and adjusted-by means ofself locking mechanism. In the preferred form of construction, the knife may be rotated by gearing on the carrier -which is driven from a stationary gear through the rotation'of the carrier; These possible concrete embodiments of the same.

various means and parts maybe widely varied-in construction within the scope of the claims, for the particular} device selected 5 to illustrate the invention is but one of many The invention, therefore, is not to be limited to the particular construct-ion shown and described. i T

.The'entire cutoffis mounted on a bed plate lOislidably supportedin the main frame 11 of the cigarette machine. The plate is ad- "justable by means of the screw 12 supported in frame 11 and engaging with thethrea'ded adjusting bracket 13 attachedj to plat'ef10.

' The cu'tofi' is driven from the main shaft' 14 I ing which is adapted-to hold a supply of (lrears 21 and22, through conduit in'plate 24, suck the oil from i the housing 20 and of thecigar'ette machine on which is mount eda gear 15 driving a gear 16 on a counter shaft 17 supported by bearings 18 and 19in the gear housing 20 mounted on the under side ofplate 10. Shaft 17 carries agear 2'1 inmesh with a gear 22 on shaft 23 thesegears,jin combination with the pump plate 24,

forming a gear; pump attached :to the houslubricating oil; and serves as" an oil'reservoir.

pump the samethrough pipe 26 to the highest moving part of the cutoff from where it 7 will come down by gravity and again collect inthe housing-20. Y

' Onshaft17is mounted alb evel gear 27 drivinga bevel gear 28,0n shaft 29 mounted in bearings 30 and 31'of the housing 32 which is attached to the top face of bed platef10.' Housing '32 is closed oil tightby meansof jcover 33equipped with 'a glass look hole 34 which enables 'the :Operator to seeif the oil isflowing freely and thus to discover pump trouble. Shaft 29,'which is set at an angle,

carries the spiral gear 35 meshing with spiral gear 36 on shaft 37 mounted in bearings" 38 1 I land 39"of housing 32. "Shaft 37 carries an eccentric counter balance 40' having'a crank pin 41 which, through connectingrod 42' pivoted t o'lug 43,;actuates theslide 44 supported on guide rods 45 fastened to housing32.

Slide 44 has the lug 46 carrying guide plate 47 to which are fastenedthe lugs'48 and '49,

"theformer holding'the ledger tube 50 while [the latter holdsthe guide tube'51, The slide l 44 and the parts connected with it receivere- 'cipro'cating motion .:throu'gh connecting rod- 42"from shaft57 "at the same speed as vthat of the cigarette rod C which, through a'sta-f 'tio'nary-mouth tube52, enters the 7' ledger tube 50 and theguidejtube51 The mouth tube 52is-mounted in lug533'fastenedto cover plate54on'housing-32.

On the upper endof shaft 29 is mounted va spiral gear 55 driving a spiral gear 56 on knife 58 clamped tli'ereon by flanges 62' and I 63. The knife shaft 61 is driven from'spiral gear 64. meshing with spiral gear .65 'journaledf on theslide'GO and slidably mounted on square end 92 of shaft 66. The latter car- 'r'ies'the bevel gear 67 which, bythe rotation,

of carrier-59 is rotate by its-engagement with a stationary bevel gear 68 fastened to the stationarybea'ring "69 of the housing 32, ;This

bearing is provided with an annular flange." surrounding an annular flange on the innerface of the carrier 59, and-"a packing engaging the carrier flange In' thisma'nner an 011 tight connection-between the carrier 59' and the stationary bearing 69 ispro-vided.

- The slide is adjusted by a pair of axially fixed right and left hand screw shafts 7O hav i ing right and lefthand threads, respectively,

on their lower ends which are "threaded into the slide-60 and provided at their otherlends :7

with the spiraljgears71 and'72; The latter are actuated by spiral gear 73 'on shaft 74 which is equipped with aknob 75 forturn ing the same. This arrangement has the advantage ofacting as an" automatic locking device for anyad ustment vmade, since any radial'mo'vement ofithe slide 60 due to the i centrifugal forceron the slide while the c'ar- V rier- 59 is rotating, "or for any ctherreason, would tend to turnthe adjustingfshafts 70 in the same direction'and thus lock 'against the adjusting-gear 73. r- 'r In order toprevent the cutofi knife 58 E from dulling during its'operation, the cut-0E is equipped with a grinding wheel 76 loosely mounted on shaft 77 adjustably supported in bracket 78 attached to plate 79. The latter' is slida-bly supported bracket 80 having 1 a lug 81 inwhich is axially secured an adjusting screw 82 engaging lug 83 of plate 7 9 andequipped witha knob'84 by whichit can 7 be turnedto bring the grinding wheel 7 nearer to or farther away from the kni fe 58;

"To remove any burrs which vmay be pro- 'duced by the wheel 7 6, the knife is" madam engage-a burring stone 85 adjustably mounted on-anextension 86 ofthe ledgerj plate.

lo ck48. ,7 -To facilitate the" proper adjustment of the cutofi, the latter is arranged to beftur'n'able byhand. A hand wheel87, conveniently lo on a vertical shaft 88 having a spiral gezmsa engaging'wi-th' spiral gear 55 on shaft 29 which controls the entire mechanisr'm; Shaft lwQ 'catedo n the top of the cutoff, is mounted 88; is loosely mountedin an eccentric sleeve90 equipped with ahandle 91- through whichit is other with a left hand thread. 1 On theother ends of shafts 95 are "mounted spiralgears 97 and 98. The latter are actuated byspiral gear 99 on stud 100 equipped w-th a-knob 191" for turning the same. This arrangement acts as aself locking devic'efor any adjustment made, similar to the arrangement in the knife carrier 59' described heretofore. The

disk cutoff knife 102 is mounted on knife shaft 103 supported by bearings in the lower part-1010f the slide 9 1.. Knife shaft 103 carries thebevel gear 105 driven by bevel gear 106 on shaft 107 supported by slide 94.

on shaft 107 is mounted gear 108 engaging 'with a gear 109 on'stud 110. Gear 109 is driven from gearlll'on stud 112 which carries the bevel gear 113 which by the rotating 2. of carrier. 93 is rotated by its engagement with the stationary bevel gear ll lmounted Ion flange 69. All the gears in thiscarrier are so arranged that they will'be in mesh at all times, whether the slide 94: be in its inner or outer position. I Y r I Referring to Figs. 9,10, and 11, which show another modification of the cutoff carrier, the carrier 115, which is also adapted to'be mounted on shaft 57 carries a cutoff knife having the form of a wafer blade 116 secured to the carrier by clamp bridge 117 held by thumb'screws 118 and rece ving tension from the springs; 119. fIn order to adjust theknife116 radially of the carrier 115, the former is provided wlth' two hol'es into which are fitted pins 120, which project 'into aligned slots incarri'er 115 and plate 117 and are mounted on slide 121 in engagement with axially 'fixed screw shafts 122 carrying spiral gears123 and 12 1. ,One of the shafts 95engages with a'right hand andthe. other with a left hand thread in the slide 121. Spiral gears 123 and 12 1"are actuated-by spiral gear 1250n stud 126' equipped with a knob 127 for turning the same By this means it will be observed that the knife-116 may be adjusted while itris clamped to the I carrier 115 andslide 121 by theclamp bridge .117. This arrangement for the adjustment of the cutofi knife is the. same as in the othericarriers described, and has the same purpose of automatically locking anyadjust- Vment made. I The carrier 115 is equipped with ,a groove 128 to accommodate a belt 129 which drives the grinding wheel, the .rotation of knife shaft. 4;.In a cutoff v I machines, the combination withgarotary cutwhich is essential for a wafer blade cutoff knife. I I I -What is claimed is: 1 V

1. In a cutoff for continuous'rod o1 arette machines, the combination with a cuto knife,

70 i of a carr er for'said knife, means forrotating 'said'carrier on an. axls incl ned to the cigarette rod, and'mechanism for adjusting said f knife radially of saidcarrier, said mechanism including a slide on which said knife is mounted,- two axially fixed screw shafts supported by said carrierjand oppositely/ threaded into saidslide at one end and pro vided with gears at their other ends, and a' knob rotatably mounted in saidicarrier and 7 connected to a gear meshing with thelgears' on said screw shafts, wherebyro'tation of said carrier will lock said gears. I i

2. In a cutoff for continuous rod cigarette machines, the combination with a cutoff knife having the form of a Wafer bladeg' of-a' carrier. for said knife; means for rotating said carrier 'onani axis inclined to tlie 'cigarette rod, and mechanism for adjusting said knife radially'of said carrier, said mechanism in: cluding a radially adjustable slide mounted in said carrier and a clamp bridge 'yieldingly secured to said carrier. for clamping said.

knife against said slideandcarrier and per-' mitting, adjustment of said slide :and blade 3. In acutoff for continuous rodcigarette machines, the combination with a rotary cutoff knife, of a carrier for said knife, means for rotating said carrier on an axis inclined .05 I while said .slide is clamped tolsaid carrier. I

to the cigarette rod, gear meansforrotating said knife, and mechanism for moving. said knife radially-of said carrier, whereby to adjust it to compensate for wear, saidmechanism including a radially adjustable .slide, and-"said knife having its shaft mountedv in shaft, and said gear. means including a stationarygear and a shaft mounted in said slide and driven from said stationarygear said slide and having a gear "mountedon its and having :a gear driving the. gear on said for continuous rodcigarette off knife, of a carrier for said knife,'means for rotatingsaid carrier on an axis inclined to the cigarette rod, gear means for rotating said knife, and mechanism for moving said knife radiallyof said carrier, wherebytoad just it to compensate forfwea'r, said gear means includinga stationary gear and gearform, and said mechanismfincluding aslide on which saidknifeand gearing are rotatably mounted. V

.ing on said carrier driven from saidgear, and 7 driving said knife, said knifebeing ofdisk' 1 25 5. Ina .cuto fffor continuous rodr cigarette machines, the combination with arotaryijcut off knife, of-alcarrier for said knife, e ns-13o '-''for rotating said carrier} on an axis. inclined to the c'i arette rod, gear means for rotating said kni e, and mechanism formoving saidknife radially of said ca'rrier,ewhereby to ad-' just'iti'to compensate for wear, saidgear means including a stationary gear, a shaft rotatably mounted in saidcarrierand having agear on-one end meshing with said station- I ary-gear and a g'fear on its otheriendfor driv- 5 g d knife.

'7 {6: In a cutofffor continuous rod cigarette machines the combinationiwith a rotarycutoff knife, of a;carr1erfor said knife, means "just it to compensate for wear, said gear means including a stationary gear, a train of gearsgonsaid carrier driven. from said stationarygean, and a shafthaving a: gear np v knife, of acarrier for said knlfe, saidlca'rrier.

; "one end driven by said gear train and a gear 4' at its other end for driving said knife.

j 7.- In a cutoff for continuousrod cigarette machines, the j combination with, a cutoff knife, of a rotating carrier for. said; knife, 7 means mounting said knife on said carrier for rotation about its own axis and also for movement by the" carrier in-an orbital path t ravers-.

ing the cigaretterod, a-stationary gear I axial with said carrier, the axes of said gear and carrier being inalignment with each other," and gearing on said carrier driven by movement-of the carrier relative to thestationary gear for drivingsaidknife, theaxis Ofsaidcarrier beinginclined tothe cigarette 'rod and said knife being disposed in a'p'lane perpendicular to *the cigarette rod. r

8. "In a-cutoff for continuousrod cigarette machines, the combination with adisk cutofl' knife, of a rotating1carrier for saidkn-ife,

"means mounting said'knife on said carrier for rotation about its own axis andalso for movement the carrier inan orbital'pathtraversing the cigarette rod, a stationary gear coaxial [with said carrier, the axes of said gear and carrier being in alignment with each other and gearing on saidcarrier driven by moveiment ofthe carrier relative to the stationary gearfor driving 'said knife, said'mounting means: including self-locking mechanism for .adjustinggtheaxis of rotation-of the disk knife in'a radial direction on the carrier.

I '9. In a cutoff: for continuous rod cigarette maclnneathe comblnation with .a cutoff knlfe,

*of a rotating carrier'for said knife, means mounting said knife on said carrier for rotation about its own axis and-also for movement by the carrier ln an orbital path traversing the cigarette rod, a stationary gear coaxial with said carrier, and gearing on said carrier driven by movement of the carrier relative to j to said upper housing, said mechanism in cluding a pipe leadingfrom the lower housing to the upper housing, a eonduit connect- '1 the stationary gear. for driving said knife,

its inner end a gear ine'shingwith saids'ta- I I :tionary gear, and having another gear slid able on the outer end of said shaft, .and'said means including a. slide adjustable radially of said carrier and Onwhieh-said knife is mounted, the outer gear being journal-ed said slide and movable therewith. v

10. In a cutoff for continuous rod cigarette machines, the. combination with a perforated cutoff knife having the form ofa wafer blade,

OIl'

of a carrier fortsaid knife, and mechanisms for adjusting saidikni'fe radiallyjof said 7 carrier, said mechanism includinganl adj ustable slide having pins adapted to engagetin the perforations in said knife,jand alclamp :bri-dge yiel'dingly secured to said carrier,,for

clamping said knife to said slide and carrier, whereby said knife may be adjusted whi-le it is clamped to "said carrier. .fr: v;' 4,

11. Inraycutofi for continuous rod cigar re'tte machines, 'the combination with. a cutoff being-provided with a radiallyi-adjustable with a gear fixed on its outer end. I g

12. In a cigarette cutoff for continuous rod cigarette machinesi-the combination'with a [reciprocating ledgerftube, of a rotarycutoff knife, a carrier-for said knife, means vfor rotating said carrier on an axis'inclined to the cigarette rod, mechanism for ad uSting the .kni-fe onfsaid carrier and'gear means for rotating'said kn 1fe ,sa1d gear means including V a'stationary gear and'gearingon saidcarri er driven by said gear and driving said knife, 7

said mechanism being operative to' lock itself whensald carrier is rotating. 7

13; In a cutoff for continuousrod cigarette machines, the combination with anadjustable bed'plate, of a housing mounted on the under. side of said bedplateand adapted to hold a supply of lubricating oil, a'housing mounted on the top face of saidbed-plate, a cutoff ported by said housings andfbed'plate 'for rotating said carrier and *mechanism' for knife, a'carrier for said knife; means sup-V pumping lubricating oil from said lower a housing to said upper housing. j

14. In a cutoff for continuous rodcigarette I machines, the combin ation with an adjustable bed plate,'of a housing mounted on the under side of said bed; platefand adapted-to'hold aisupply of lubricating oil. a housingmounted on the top face of said bed plate,} a cutoff knife, .a. carrier for said knife, means supported by said housings andbed plate forrotating said carrier, and mechanism for p mp-r ing' lubricatingoil from said lower housing,

for supporting sai-d'carrier shaft, and means for providing an oil tight connection between sa1d carrier and sa1d stationary bearing, sa1d means including an annular flange projecting from the inner face of said carrier, an annular flange on said bearing surrounding said carrier flange, and a packing carried by one of said flanges and engaging the other.

In testimony whereof, I have signed my name to this specification.

RUPERT E. RUNDELL.

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