US1510729A - Cutting mechanism for cigarette machines - Google Patents

Description

c. E. WEIsNER CUTTING MECHANISM FOR CIGARETTE MACHINES Filed April 26. 1923 2 Sheets-Sheet l @les E.Wzisne INVENroR,

WITNESSEB C. E. WElSNER CUTTING MECHANISM FOR CIGARETTE MACHINES Filed -April 26 1923 Sheets-Sheet 2 INV'ENTOR ClvrZesEI/Vezsner ATTRNEY Patented Cet.. 7, 1924'.

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CHARLES EMMETT WISNER, OF DURMID, VRGINIA;

CUTTING MECHANISM FOR CIGARETTE MACHINES.

Application filed April 26, 1923. Serial No. 634,808.

T 0 all whom t may concern Be it known that I, CHARLEs E. VEISNER, a citizen of the United States, residing at Durmid, in the county of Campbell and State of Virginia, have invented new and useful Improvements in Cutting Mechanism for Cigarette Machines, of which the lfol'- lowing is a specification.

This invention relates to la cutting mech anism for cigarette machines and it has for its object to provide an improved cutting mechanism adapted to be used in connection with any type of cigarette machine in which the cigarette is discharged in the form of a continuous rod or roll, means being provided whereby the roll isneatly cut perpendicular to its longitudinal axis into uniform lengths by a revoluble helical cutter, the axis of which is inclined both horizontally and vertically with respect to thecigarette roll to be cut. The roll is positively fed in unison with the operation of the revoluble cutter, and the carrier which feeds the roll is provided With ledger blades which cooperate with the helical cutter' and may be adjusted towards or from the same to vary the tendescribed in connection with the accompanying drawings, in which l Figure 1 is a side elevation of the rear portion of a cigarette machine embodying the invention.

Fig. 2 is a plan view of the same.

Fig. 3 is a front elevation of the. same.

Fig. 4 is a detail view of the means for adjusting the cutter.

Fig. 5 is a detail view showing the relation of the helical cutter to the cigarette roll.

Fig. 6 is a detail sectional view lof one of the ledger blades.

Fig. 7 is a detail view ofthe same.

In the drawings, 10 designates the rear part of a cigarette machine which may be of any desired vconstruction wherein the cigarette is delivered in the form of a continuous roll. Journaled in the frame 10 are two spa-ced parallel shafts 11 and 12 on which are mounted sprocket wheels. 13 and 14, respectively. The shaft 12 is provided with a spur gear 15 by means of which it is positively driven from a gear 16 connected with the cigarette making machinery. A sprocket chain 17 is carried by the sprocket wheels 13 and 14, and a suitable means may be provided for tightening the chain by adjusting the bearing 18 for the shaft 11.'

The chain 17 is provided with a series of blocks 19, each of which has a semi-cylindrical groove 20, formed in its outer face, which grooves form throughout the upper lap of the chain a substantially continuous groove which receives the continuous cigarette roll 21, as it is delivered from the machine. The upper lap of the chain 17 passesv over the upper surface of a support 22 which maintains the blocks 19 and grooves 2O in horizontall alinement, and alguide plate 23 extends over the chain to. insure the proper feeding of the cigarette roll to thecutter to be hereinafter described.

. Certain of the blocks 19,.preferably each alternate one, is provided .with a ledger blade 24 extending transversely across its front face and `supported` by a4 spindle 25 slidably mounted in a recess 26 in the block.

The inner end of the spindle 25 is pro-l vided with a threaded bore 27 withA which arotatable threaded pin 28 cooperates to ad- Vance or retract the ledger blade.

Cooperating `with the successive ledger blades 24 is a heli-cal cutter 29 secured to a shaft 30 which is journaledin the arms of a yoke 31 and provided at one end with a drive piniony 32. The yoke is fulcrumed atl 33 and 34 in brackets supported by the frame 10, and is provided at its rear endv with an adjusting screw vby means `of which the cutter- 29 may beadjusted upwardly or downwardly into proper relationA to the cigarette roll. The pinion 32 is driven by a gear 36 secured to a stub shaft 37, which, in turn, is driven through the worm gear 38 by a countershaft 39 connected by bevel gearing 40 withthe shaft 12.- The ratio between the several parts of the mechanism` for driving the cutter shaft 30 is such that one complete revolution of the cutl cigarette roll 21 and gradually cuts intothe same during substantially two complete revolutions of the cutter, at which time 4the cigarette is completely severed at right anf gles to its longitudinal axis. The lateral inclination of the periphery of the cutting plate 29, due to its pitch, is corrected by inclining the axis of the cutter laterally with respect to the cigarette roll, as will be understood from an inspection of Fig. 5. ln order to permit this inclination of the cutter shaft and at the same time drive the latter properly from the stub shaft 37', the teeth of the driving pinion 3:2 may bel slightly skewed.

ln order that the cigarette machine may be adapted 'for cigarettes of different lengths, the chain 1i and sprocket wheels 13 and 14 may be replaced by a sprocket gear having the ledger blades spaced at different distances, and the spiral cutter may be replaced by a cutter of different pitch corresponding to the spaces between the ledger blades with which it cooperates. Each cutter shaft will be provided with gearing having the proper' ratio for it to operate in unison with the conveyer with which it is used. Provision is made for the easy removal of the cutter shaft by removably securing the bearing ll for the yoke by means of set screws 42 or the like.

The helical knife may be made right or left handed, according to the direction in which it is rotated by the particular machine with which it is to be used. rllhe movable ledger blades which are carried by the chain 17 are individually adjustable so as to secure their proper cooperation with the helical blade 29, and the edge of the latter is hollow ground to a razor edge, as shown in F ig. 6. Preferably, every alternate block 19 is provided with a ledger blade and each cigarette is supported by a pair of blocks until it is delivered from the machine.

lVhile l have shown and described specifically the structural features of what is at present 'the preferred form of my invention, it will be understood that various modifications may be made therein so long as such modifications embody the salient features of the invention, as defined by the claims.

vWhat is claimed is l. ln a cutting mechanism for cigarette machines, the combination of an endless carrier comprising a series of grooved links for receiving a continuous cigarette roll, certain of said links having ledger blades, a revoluble helical knife cooperating with said ledger blades and having its axis inclined horizontally and vertically with respect to the travel of the conveyer, the vertical inclination being such that after the knife first engages the roll substantially two rotations of the knife are required to complete the cut, and the horizontal inclination being such that the plane of the knife at its active point is perpendicular to the longitudinal axis of the cigarette.

2. In a cutting mechanism for cigarette machines, the combination of an yendless :micras carrier comprising a series of grooved links for receiving a continuous cigarette, certain of said links having ledger blades extending transversely across their respective front faces, a revoluble helical knife cooperating with said ledger blades and having its axis inclined horizontally and vertically with respect to the travel of the conveyer, said knife and carrier being so geared together that the carrier advances the distance between two consecutive ledger blades while the knife performs one revolution.

3. ln a cutting mechanism for cigarette machines, the combination of an endless chain, sprocket wheels on which the chain is carried, blocks secured to the links of the chain and having grooves for receiving a continuous cigarette roll, certain of said links having ledger blades extending transversely across their respective faces,a revoluble helical knife cooperating with said ledger blades, the successive convolutions of the knife being spaced the same distance apart as the distance between two consecutive ledger' blades, a common drive shaft for driving the sprocket gear and the knife in timed relation, and means for adjusting the knife toward and away from the chain.

t. In a cutting mechanism for cigarette machines, a positively driven endless belt having a. succession of substantially equally spaced transverse ledger blades, a revoluble helical cutter cooperating with said ledger 'blades and driven in timed relation with the endless belt, and means for individually adjusting the positions of the ledger blades forwardly or backwardly to adjust the tension between them and the helical cutter.

5. .ln a cutting mechanism for cigarette machines, a positively driven endless belt having a substantially continuous groove for supporting a continuous cigarette roll and having a succession of substantially equally spaced transverse ledger blades extending across the bottom of said groove, a revoluble helical cutter cooperating with said ledger blade and driven in timed relation with the endless belt, said cutter having substantially two complete convolutions which engage and cut the cigarette during its travel, and means for individually adjusting the positions of the ledger blades forwardly or backwardly.

6. ln a cutting mechanism for cigarette machines, a positively driven endless belt having a succession of substantially equally spaced transverse ledger blades, a revoluble helical cutter cooperating therewith and driven in timed relation with the endless belt, means for individually adjusting the positions of the ledger blades forwardly or backwardly, and means for adjusting the cutter toward and away from the belt.

7. ln a cutting mechanism for cigarette machines, an endless conveyer composed of links formed on their upper lap with a subtravel of the conveyer, and means for individually adjusting said ledger blades or- Wardly or baclrvvardly to vary the tension between the same and the helical knife.

In testimony that I claim the foregoing as my own, I have hereto aixed my signature,

CHARLES EMMETT WEIS-NER.

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