US853650A - Cigarette-making machine. - Google Patents

Description

110,853,650. PATBNTED MAY 14, 1907; E. SGHURMANN.

CIGARETTE MAKING MAGHINB. v

APPLIOATION FILED ran. a. 1906.

2- SHEETSSHEBT 1.

rm: ucnms Pnsws co., wAsl-lmcrnm b. c

PATENTED MAY 14, 1907.

B. SOHfiRMANN, CIGARETTE MAKING MACHINE.

APPLIGATION rum) EEB.8,1906. 2 Sumksnm UNTTED STATES PATENT FFIQE.

CIGARETTE-MAKING MACHINE.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed February 8, 1906. Serial No. 300,031.

' ing is a specification.

My invention relates to a cutting mechanism for cigarette making machines.

In machines to which my invention relates and particularly in the cutting devices thereof, it is obviously necessary that the cutterboth when entering and when leaving the continuously progressing cigarette-strips,

should follow the longitudinal movement of the latter in order to obtain a straight and clean rectangular cut. Therefore it is important, even when the speed of the machine is great, and great variations in the working are required, that any tilting or inclination of the cutter-frame and the carriage should be prevented or reduced to a minimum.

Furthermore it is absolutely necessary in order to obtain an exact cut, that the movement of the cutter frame, attained by means of a cam device, should correspond to the different lengths of cigarettes which are to be cut from the continuously progressing strip, without necessitating an exchange of operating cams. Finally, it is necessary in order to obtain a clean cut that the swinging movement of the cutter should take place at the right moment and in such a manner, that after the out has been made the progressing strip will in no way be injured.

- In thecutting devices of cigarette making machines in so far as I am aware, the carriage has heretofore been moved in a longitudinal direction by means of a single cam device, a tilting or setting at an inclination of the cutter frame could only be prevented by having a very tight fit of all the parts, thereby increasing the friction and consequently the wear and tear of the parts, and consuming more power to drive the machine than would otherwise be required.

Now according to my present invention, a tilting or inclination of a cutter carriage or support whose parts are properly fitted together, is prevented by means of a face cam ring employed to effect the longitudinal movement being provided with two or more a corresponding number of rollers or equivalent devices adapted to bear symmetrically against the cam ring in such a manner that the ring will act simultaneously against all of the rollers and thereby cause the travel of the cutter carriage to be uniform in all parts thereof. These rollers are preferably mounted in a closed dust proof casing or cylinder, which is arranged slidably over the operating cam ring on suitable guides provided therefor. Further these rollers are so arranged that the feeding movement of the cutter carriage can be increased or reduced by an adjustment of the rollers which are mounted eccentrically in suitable bearings, and the structure is such that this, if necessary, may be accomplished while the machine is runnln Iiiorder to effect the swinging movement of the cutters, I employ a tappet cam which receives its rotary motion from the main driving shaft by means of gear wheels prefer ably of equal diameter and which may be adjusted in relation to the cam ring for eiiecting the displacing of the carriage in such a manner that the cutter will on each altered movement of the carriage enter the strip at the right moment, and a coiled spring is employed to move the cutter out of the path of the progressing strip before the backward movement of the carriage takes place.

In the drawings a constructional form of the cutting-device according to the present invention is shown in which Figure 1 represents a front elevation partly in section. Fig. 2 is a longitudinal section with the cutters and their supports omitted. Fig. 3 is an end elevation partly in cross section, and Fig. 4 is a detailed view.-

a is the main driving shaft on which a face cam ring a is mounted. This cam ring is I projections, resulting in such movement, and 5 5 provided with two or more similar projections and is surrounded by a casing or carriage b, on which circular cutters together with guide tubes i for the strip "L to be out, are arranged as shown. The casing b besides being slidably mounted on the shaft a and the cam ring a, is also supported on rods 6 b and is longitudinally movable thereon and carries two or more rollers 0 corresponding in number with the number of projections on the cam ring a, the cam surface of which is kept in contact continuously with all the rollers by means of a spring or otherwise, for the purpose of effecting an absolutely uniform reciprocating movement of the carriage. The casing I) will be partly filled with oil, whereby a tight closure excluding any dust or dirt, and. providing for a permanent oiling of the parts is secured, thus reducing as much as possible the wear and tear of such parts.

The rollers c are mounted eccentrically on supports d rotatably arranged within the casing?) and the rollers may be adjusted when the machine is working, by turning their supports (Z, either toward. the cam ring a or away from the same, for the purpose of obtaining a variation of the travel of the carriage 1), corresponding at any time to the desired length of cigarette, without making an exchange of cam rings necessary.

The adjustment of any roller 0 may be effected by means of a block (1 attached to the support (Z and sliding in a groove 7c in a mem ber provided for this purpose on the outside of the carriage. This grooved member can, if desired, and as shown for instance .in Figs. 3 and 4, be brought by means of a rack and pinion Z from its horizontal position into an inclined position, and when the grooves k are horizontal as shown in Fig. 4 in full lines, no alteration in the position of the rollers will take place when the carriage is moved, but if the grooves 76 are in an inclined position as shown in Fig. 4, in dotted lines, the blocks (1, on the movement of the carriage will move upward within the grooves 7r, whereby a turning of the bearing or support (I will be effected in such a manner that the rollers a will move toward the cam ring a, and the travel of the carriage will be increased. On the other hand if the grooves 7c be inclined in the opposite direction, the rollers a will on the moving of the carriage, be moved further from the driving cam ring a, whereby the travel of the carriage will be reduced. It will be understood that means other than the spring j may be employed to maintain the rollers c in contact with the face cam ring a.

It is obvious that in turning the drive shaft together with the cam ring, the carriage will be moved to and fro as many times as there are cam faces on the ring.

I also employ an auxiliary shaft 0 and this shaft is preferably connected with the drive shaft a by means of gear wheels 0 a which are desirably of the same diameter and on the auxiliary shaft 6 a tappet cam c is fixed.

7L, h, are circular cutters, each of which is revolubly mounted in suitable bearings at one extremity of an arm g pivotally mounted at m in the lug m integral with or secured to the carriage l), and these cutters 7L may be revolved by any suitable means, which how ever, form no part of my present invention. m is an adjustable frame member also pivotally mounted at m in the lug m and at the free end of the frame at is a shaft m on which a rollerfis mounted, the rollerfbeing adapted to be engaged by the t appet cam 0 fixed on the auxiliary shaft 6 and the frame member m is maintained in position with the. rollerf in contact with the said tappetatm c by means of a helical spring or otherwise.

Each arm 9 is made adjustable in order to take up the wear on the cutters /1, by means of the end g thereof being provided with a, slot 9 through which a clamp bolt g is passed to secure the said arm to the frame member m and in order to effect an adjustment between the movement of the cutters l1 and that of the reciprocating carriage, the gear wheel a" may be fixed on. the drive shaft (1 and the gear wheel 6 secured to the auxiliary shaft 0 by means of a set screw or otherwise .in order that the said gear wheel c may be easily removed and adjusted in its relation to said gear wheel c I claim as my invention:

1.. In a cutting mechanism for cigarette making machines, the combination with a reciprocating slide and a cutter carried thereby, of a plurality of rollers mounted on the said reciprocating slide, a shaft and a ring fixed on said shaft and provided with a plurality of projections on one face thereof corresponding in number with the said rollers which are engaged simultaneriusly by the said projections, substantially as and for the purposes specified.

2-. In a cutting mechanism for cigarette making machines, the combination with a drive shaft, of a slide thereon, means for imparting a reciprocating movement to said slide andv means for varying the travel of said slide while the machine is in operation, substantially as and for the purposes speci tied.

3. In a cutting mechanism for cigarette making machines, the combination with a reciprocating slide and a cutter carried thereby, of a plurality of rollers mounted on said reciprocating slide, a shaft, a ring fixed on said shaft and provided with a plurality of projections on one face corresponding to the number of said rollers which are engaged simultaneously by the said projections and means for adjusting the positions of the said rollers to vary the travel of the said reciproeating slide, substantially as and for the purposes specified.

4. In a cutting mechanism for cigarette making machines, the combination with a reciprocating slide and. a cutter carried thereby, of a drive shaft, a cam ring fixed on said drive shaft and placed within the said reciprocating slide, rollers mounted interiorly of the said reciprocating slide and adapted to be engaged by the said cam ring and m \ans operated exteriorly of the slide for adjusting the positions of the said rollers to determine the travel of the said reciprocating slide, substantially as and for the purposes speci lied.

Its

5. In a-cutting mechanism for cigarettemaking machines, the combination With a drive shaft, a reciprocating slide and a cutter carried thereby, of a cam ring fixed on the said drive shaft and Within the said reciprocating slide, supports journaled in the said reciprocating slide, rollers mounted on the said supports and adapted to be engaged by said cam ring and means for shifting the positions of the said supports to adjust the positions of the said rollers, in order to determine the travel of the said reciprocating slide, substantially as and for the purposes specified.

6. In a cutting mechanism for cigarette making machines, the combination with a drive shaft, a reciprocating slide and a cutter carried thereby, of a cam ring fixed on the said drive shaft and Within the said reciprocating slide, supports j ournaled in the said reciprocating slide, rollers eccentrically mounted on the said supports and adapted to be engaged by said cam ring, means for shifting the positions of the said supports to adjust the positions of the said rollers, in order to determine the travel of the said reciprocating slide, and means for maintaining the said cam ring in contact With the said rollers, substantially as and for the purposes specified.

7. In a cutting mechanism for cigarette making machines, the combination With a slide and oscillating cutter, of means for imparting 'a reciprocating movement to said slide, means for varying the travel of the said slide While the machine is'in operation, means for oscillating the cutter and means for adjusting the normal position of the said cutter to take up the Wear on the same, substantially as and for the purposes specified.

8. In a cutting mechanism for cigarette making machines, the combination With a reciprocating slide and a cutter carried thereby, of a drive shaft, a cam ring fixed on said drive shaft and placed Within the said reciprocating slide, rollers mounted interiorly of the said reciprocating slide and adapted to be engaged by the said cam ring, means operated exteriorly of the slide for adjusting the positions of the said rollers to determine the travel of the said reciprocating slide, an auxtions of the said iliary shaftand means operated by the said auxiliary shaft for oscillating the said cutter,

gulcolstantially as and for the purposes speci- 9. In a cutting mechanism, for cigarette making machines, the combination with a drive shaft, a reciprocating slide and a cutter carried thereby, of a cam ring fixed on the said drive shaft and Within the said reciprocating slide, supports journaled in the said reciprocating slide, rollers mounted on the said supports and adapted to be engaged by said'cam ring, means for shifting the positions of the said supports to adjust the positions of the said rollers in order to determine the travel of the said reciprocating slide, an auxiliary shaft driven by said main shaft, a cam thereon, means operated by the said cam for lowering the said cutter and means for returning the said cutter to its normal position, substantially as and for the purposes specified.

10. In a cutting mechanism for cigarette making machines, the combination With a drive shaft, a reciprocating slide and a cutter carried thereby, of a cam ring fixed on the said drive shaft and Within the reciprocating slide, supports j ournaled in the said reciprocating slide, rollers eccentrically mounted on the said supportsand adapted to be engaged by said cam ring, means for shifting the posisupports to adjust the positions of the said rollers in order to determine the travel of the said reciprocating slide, means for maintaining the said cam ring in contact with the said rollers, an auxiliary shaft driven by said main shaft, a cam thereon, means operated by the said cam for lower ing the said cutter and means for returning the said cutter to its normal position, substantially as and for the purposes specified.

In testimony, that I claim the foregoing as my invention I have signed my name in presence of tWo Witnesses, this 24th day of J anuary 1906.

EDUARD SCHURMANN. Witnesses:

PAUL E. SOHILLING, PAUL ARRAS.

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