US1981486A

US1981486A - Turret index and suction control for cigar machines

Info

Publication number: US1981486A
Application number: US657847A
Authority: US
Inventors: Henry H Wheeler
Original assignee: International Cigar Machinery Co
Current assignee: International Cigar Machinery Co
Priority date: 1933-02-21
Filing date: 1933-02-21
Publication date: 1934-11-20
Anticipated expiration: 1951-11-20

Description

Nov. 20, 1934. H. H. WHEELER TURRET INDEX AND SUCTION CONTROL FOR CIGAR MACHINES Filed Feb. 21, 1933 3 Sheets-Sheet l w W 1 mm mm m m in T R w F m m E W m %N Fa Q B 1-4 Q E u c q m a. k V m Q E k x mw ....H @b N M v am NOV. 20, 1934. LE 1,981,486

TURRET INDEX AND SUCTION CONTROL FOR CIGAR MACHINES Filed Feb. 21, 1933 3 Sheets-Sheet 2 FIG. 2

INVENTO fi #M ATTORNEY Nov. 20, 1934.

H. H. WHEELER TURRET INDEX AND SUCTION CONTROL FOR CIGAR MACHINES Filed Feb. 21, 1933 3 Sheets-Sheet 3 @QC EN mw V QN Patented Nov. 29, 1934 TUBRET INDEX AND SUCTION CONTROL FOR CIGAR MACHINES ienry H. Wheeler, Brooklyn, N. Y., assignor to Cigar Machinery Company, a corporation of New Jersey International Application February 21, 1933, Serial No. 657,84?

'7 Claims.

This invention relates to cigar machines equipped with a turret carrying two wrapper cutting-dies for high-speed wrapper serving, its main object being to provide a simple, positively locking indexing device having a low ratio of maximum to minimum velocity of motion, thereby insuring smooth running of the turret at high speed.

In duplex-die cigar machines, such as disclosed in Patent No. 1,888,788, granted Nov. 22, 1932, to S. Clausen, the die turret turns one-half revolution after a leaf section is laid on one wrapper cutting-die, each wrapper being cut from the leaf on the cutting-die while the latter is in transit and then picked up by the suction head of the wrapper carrier while the next leaf is being served by the operator. With the present invention the wrapper is out while the die turret is stationary; accordingly, a further object of this invention is the production of a novel device operating to advance the tobacco leaf from leaf serving to wrapper cutting position and cut the wrapper therefrom while it is stationary.

Each die is mounted on a leaf supporting suction bed on which the leaf section is held by suction while being carried by the turret to wrapper cutting position, where the wrapper is cut and transferred from the die by being lifted to the carrier head and then held by suction to the lat-' ter during its transfer to the wrapper-applying device in which it is wound on the cigar bunch. For the purpose of effecting the various suction conditions, the intermittently rotating turret table and its stationary support frame are provided with axial ports so that the motion of the turret produces the different port combinations required, and the suction is further controlled by a cam-operated slide valve. Therefore, a further object of the invention is to provide novel suction means.

Indexing devices heretofore employed to impart the intermittent motion of the die turret, due to the nature of the mechanism used, had the disadvantage of running at a comparatively high speed during a portion of each revolution, thereby producing a more or less jerky motion of the turret, and impairing the proper action of the indexing mechanism. The present turret index overcomes this objection, having a much more even motion throughout its cycle, resulting in much smoother running of the turret. This is accomplished by mounting on the turret shaft a disk carrying two diametrically opposite rollers, these rollers engaging with the divided tract: of a cam rotated by suitable gearing from the main shaft of the cigar machine. During eachrevolution of this cam, the divided track causes a reversal in the position of the said rollers, thereby producing a half turn of the turret shaft. With these and other objects not specifically mentioned} in view, the invention consists in certain constructions and combinations hereinafter fully described and then specifically set forth in theclaims hereunto appended.

In the accompanying drawings which form a part of this specification and in which like characters of reference indicate the same or like parts:

Fig. 1 is a sectional end elevation showing a die turret of a high speed cigar machine equipped with the improved indexing device and suction control;

Fig. 2 is a detail sectional view taken on line 2-2 of Fig. 1, showing the operation of the turret index;

Fig. 3 is a horizontal cross-section onthe line 3-3 of Fig; 1, showing the suction ports in the turret support;

Fig. 4 is a detail view from line 4-4 of Fig. 1, showing a stationary suction distributing valve attached to the turret support;

Fig. 5 is a detail view on line 5-5: of Fig. 1, showing the suction'ports in the turret head;

Fig. 6 is a plan view of Fig. 1; and

Fig. 7 is a sectional View on the line '7-'l of Fig. 6 showing details of the leaf supporting suction heads.

In carrying the invention into effect there is provided a rotatable carrier, two leaf supporting suction beds mounted in diametrically opposite positions on said carrier, each bed having a wrapper cutting die thereon, means for intermittently rotating said carrier in 180- degree steps to carry each suction bed successively from leafserving to wrapper cutting position, a cutting roller adapted to coact with the cutting die of the suction bed while it is at wrapper cutting position to cut a wrapper from a leaf thereon and mechanism for moving said roller over the cutting die of the suction bedat wrapper cutting position to cut a wrapper from a leaf thereon while the carrier is at rest. In the-best forms of construction contemplated said means includes a shaft on which the carrier is mounted, a disk on said shaft provided with two rollers on its outer face at diametrically opposite points thereof, a rotatable cam provided with a circular cam track receiving both of said rollers to lock said shaft against rotation, said track being provided with anon-circular portion, and said cam having a by-pass connecting opposite portions of said track and adapted to receive one of said rollers while the other roller is engaged by a non-circular portion of the track, and mechanism for continuously rotating said cam to successively cause each of said rollers to enter the non-circular portion of said track and rotate said shaft one half turn. In the best forms of construction there is also provided suction means controlled by the rotation of said carrier and connected to said beds for holding a leaf thereon and releasing the cut wrapper while each suction bed dwells at wrapper cutting position, and including a camoperated slide valve actuated independently of the movement of said carrier. These various means and parts may be widely varied in construction within the scope of the claims, for the particular device selected to illustrate the in vention is but one of many possible concrete embodiments of the same. The invention, therefore, is not to be restricted to the specific construction shown and described.

WReferring to the drawings, the turret head or ohtiier 6 is mounted on a shaft 7 turnable in bearihgs" 6 'of a support frame 9 having suction connections, hereinafter described, supported from the upper part of main frame 10 of the cigar matures by a tie bolt 11, and having a bracket 12 near its bottom secured to a tie bolt 13 of frame IOJtli-latter also having a tie bolt 14 symmetrical with bolt 13. At diametrically opposite points of tlie carrier 6 are mounted two leaf supporting suction beds consisting of die holders 15 in bearis s rs of which are slidably mounted rods 17 supportin the hollow die blocks 18 which loosely flt ih'to plates 19 fastened to the holders 15 and supporting the die shells 20. To each plate 19 i's attached a wrapper cutting die 21 held thereon by' cla mps 22.

The frame 10 of the cigar machine supports the "a'ih ishaft 23 and the fulcrum shaft 24, and ashes the table plate 25 on which is pivoted an arm 26 carrying the cutting roller unit '78 which cutS the wrapper on the rearward die shown in outline in Fig. 1, While the operator serves the forward die shown in cross section, at standstill of the turret.

A gears: mounted on shaft 23 drives a gear 28 ,on a shaft 29 supported by a bracket 36 on the tt'irr et'- frame 9. Shaft 29 has a bevel gear 31 meshing with a bevel gear 32 on a shaft 33 journaled in a bearing 34 of turret frame 9. To the lbwei end of shaft 33 is affixed a cam 35 engagiiigWfith rollers 36 and.37 carried by a disk 38 attfhed to turret shaft 7. Ijli'

rollers

36 and 37, Fig. 2, are mounted on sti'id's 39 carried at diametrically opposite points fiy tli disk 38. The cam track of cam 35 is circultarexoept at one portion 40 at which it extends outwardly for a distance equal to half the distanceb'etween the

rollers

36 and 37 less the height o'f an arc formed by the roller distance on the iiitchfircle of cam track 35, the maximum displacement of the non-circular portion of the cam tr'fdk being'equal to the displacement of the roller iiiif from said pitch circle when either roller enters the non-circular portion of the cam track. Pfiiidicular to the radius at the outgoingpoint 4t? nii at a center-distance from that point equal t'o tli distance between the

rollers

36 and 37, a by' 'l fiass 41 extends across the cam from one side fl th'e circular track to the other. In position lofl'of 'the cam, shown in full lines in Fig. 2, the toll S236 and 37 are both in the circular track, i'Ilri-fBS being in the rear and roller 37 in the froiitflthereby locking the turret shaft against rotation. In position 40', shown in dotted lines, the roller 36 by the clockwise advance of point 40 has been carried into position 36 and the roller 37 has been forced to enter and travel along by-pass 41, now in position 41, thereby turning the disk 38 through onenuarter of a revolution in the clockwise direction. In position 40" of the cam, the roller 36 is in position 36" previously occupied by roller 3'? and roller 37 has emerged by by-pass 41, now in position 41", and is in position 3'7 formerly occupied by roller 36, so that now their positions are exactly reversed, that is, the. disk 38 has turned through 180 degrees resulting in a half-turn of turret shaft '7. Thereupon the engagement of the

rollers

36 and 37 in the circular portion of the cam track holds the turret shaft locked until the portion 40 of the cam returns to engage the roller 37 and rotate the turret shaft another half-turn. In this manner the turret is intermittently rotated in 180 degree steps.

The suction for holding the wrapper is sup-plied through a box 42 attached to chamber 43 of turret frame 9 and connected by a pipe outlet 44 to the hose connection 45 of the suction source (not shown). The chamber 43 has a vertical division wall, dividing it into two ducts 46 and 47, Fig. 3, each duct leading to one of the suction beds through the vertical ports 48 and 49, Fig. 1. From suction box 42, openings lead to the ducts 46 and 47 of chamber 43 and to a suction duct 50 in main frame 10, which communicates with a suction bracket 51 leading to the wrapper carrier, not shown, mounted on table plate 25. Between the suction box 42 and chamber 43 and duct 50 are inserted slide valves 52 and 53 designed to control the suction in the die blocks 18 and wrapper carrier, respectively, and connected by links 54 and 55 to a cam lever 56 fulcrumed on shaft 24 and having a roller 57 held in engagement with a cam 58 on shaft 23 by aspring59 attached to bracket 51. The valve 53 controls the supply of suction to each suction bed when it carries a leaf section into wrapper cutting position, the valve 53 operating to cut off the supply of suction to the die. block to release the out wrapper thereon while the suction bed dwells in wrapper cutting position, through means presently described. Between the stationary frame 9 and the turret head 6, attached fixedly to the former, is inserted a disk valve 60 having a number of port openings 61, Fig. 4, communicating with the ports 48 and 49 in the frame 9. The turret head 6 has two pairs of

ducts

62, 63, and 62', 63, Fig. 5. The ducts 62 and 62' communicating with the interior of the die blocks 18, and the ducts 63 and 63' communicating with the interior of the die shells 20 of the two suction beds through ports in the holders l5 and in support plates 19. To hold the leaf sections on the suction beds after they are laid thereon, the die blocks and shells are provided with holes communicating with their interiors. The rotation of the turret head 6 against the stationary valve 60, in conjunction with the timed action of valves 52 and 53, produces all the different suction conditions required at different stages for the proper operation of the mechanism, the port openings in valve 60 being arranged to register with the

ducts

62, 62 and 63, 63 for full suction hold on the leaf section from the time the suction bed leaves the leaf serving position until after the wrapper is out. While the turret dwells in the wrapper cutting position the suction in the die block is cut off by the valve 53 to release the cut wrapper so that it may be transferred to the wrapper carrier, but-the suction within the-die shell is maintained' until shortly before the die returns to'leaf serving position whereupon the operator removes the wrapper scrap before'laying another leaf sec-1, tion on the suction bed.

The die block support rods 17 on their lower ends carry rollers 64 by which they rest on a circular cam surface 65 surrounding the turret frame 9. This cam surface raises the die blocks above the wrapper cutting die 21 in the leaf serving position to protect the operators fingers, and causes the die blocks to descend slightly below the cutting edge of the die in the cutting position to ensure a sharp and clean cut when the cutting rollerunit moves over thedie. While the suction bed is moving into wrapper cutting position, an extension 65 of the studs of rollers 64 engages with a pocket 67 at the upper end of a rod 68' slidably supported in lugs 69 extending from turret frame chamber 43. The rod 68 is connected by a link '70 with cam lever 71 fulcrumed on shaft 24 and carrying a roller '72 held against the surface of a cam '73 on shaft 23 by a spring '74 fastened to a lug of cam 65. As the cam roller 72 engages with the low point of the cam '73 at the proper time, the rod 68 ascends, raising the die block 18 into engagement with the suction head of the wrapper carrier (not shown). The cam surface 65 is part of a bracket 75 attached to a pad 76 on turret frame 9 and supporting a die-serving table (not shown) abutting the housing 77 of the turret.

The cutting roller unit 78 is mounted on arm 26 which turns on a stud '79 attached to table 25 and is operated in synchronism with turret shaft 7 by a rod 80 connected to a lever 81 provided with a cam roller 82 engaging with a drum cam 83 on shaft 23. By performing the wrapper cutting operation by movable rollers while the turret stands still, the advantage is gained that a much greater portion of the turret cycle can be utilized for the cutting operation than when cutting the wrappers by stationary rollers during the motion of the turret, the ratio of dwelling to motion time with the present index being 2 to 1. The slower cutting motion prevents possible sliding of the wrapper on the die and reduces wear of the dies, promoting longer life of the same.

What is claimed is:

1. In a cigar machine, the combination with a rotatable carrier, of two leaf supporting suction beds mounted in diametrically opposite positions on said carrier, each bed having a wrapper cutting die thereon, means for intermittently rotating said carrier in 180 degree steps to carry each suction bed successively from leaf serving to wrapper cutting position, a cutting roller adapted to coact with the cutting die of each suction bed while it is at wrapper cutting position to cut a wrapper from a leaf thereon, and mechanism for moving said roller over the cutting die of the suction bed at wrapper cutting position to cut a wrapper from a leaf thereon while said carrier is at rest.

2. In a cigar machine, the combination with a rotatable carrier, of two leaf supporting suction beds mounted in diametrically opposite positions on said carrier, each bed having a wrapper cutting die thereon, means for intermittently rotating said carrier in 180 degree steps to carry each suction bed successively from leaf serving to wrapper cutting position, a cutting roller adapted to coact with the cutting die of each suction bed while it is at wrapper cuttingposition' to cut awra-pper-from a leaf thereon, and mechanism for moving said roller over the cuttingdi'e of the suction bedat wrapper cutting position to out awrapper from a leaf "thereon while said carrier is at rest, said means including a-shaft on which said carrier is mounted, a disk-- on said shaft provided with tworollers mounted on its outer faceat diametrically opposite points thereof, a rotatable cam provided with a circular cam track receiving both of said rollers to lock said shaft against rotation, said track being provided, with a non-circular portion, and said cam having a by-pass connecting opposite portions of said track and adapted to receive one ofsaid rollers while the other roller is engaged by the non-circular portion of 'the track, and mechanism for continuously rotating said cam to successively cause each of said rollers to enter the'non-circular portion of the-said track and rotate said shaft one half-turn.

3. In a cigar machine, the combination with a rotatable carrier, of two leaf supporting suction beds mounted in diametrically opposite positions on said carrier, each bed having a wrapper cutting die thereon, means for intermittently rotating said carrier in 180 degree steps to carry each suction bed successively from leaf serving to wrapper cutting position, a cutting roller adapted to coact with the cutting die of each suction bed while it is at wrapper cutting position to out a wrapper from a leaf thereon, mechanism for moving said roller over the cutting die of the suction bed at wrapper cutting position to cut a wrapper from a leaf thereon while said carrier is at rest, and suction means controlled by the rotation of said carrier and connected to said beds for holding a leaf thereon and releasing the cut wrapper while each suction bed dwells at wrapper cutting position.

4. In a cigar machine, the combination with a rotatable carrier, of two leaf supporting suction beds mounted in diametrically opposite positions on said carrier, each bed having a wrapper cutting die thereon, means for intermittently rotat- 1' L-e ing said carrier in 130 degree steps to carry each suction bed successively from leaf serving to wrapper cutting position, a cutting roller adapted to coact with the cutting die of each suction bed while it is at wrapper cutting position to cut a wrapper from a leaf thereon, mechanism for moving said roller over the cutting die of the suction bed at wrapper cutting position to cut a wrapper from a leaf thereon while said carrier is at rest, and suction means controlled by the rotation of said carrier and connected to said beds for holding a leaf thereon and releasing the cut wrapper while each suction bed dwells at wrapper cutting position, said suction means including a cam-operated slide valve actuated independently j of the movement of said carrier.

5. The combination with a rotatable carrier, of two leaf supporting suction beds mounted in diametrically opposite positions on said carrier each bed having a wrapper cutting die thereon, and

means for intermittently rotating said carrier in 180 degree steps, said means including a shaft on which said carrier is mounted, a disk on said shaft provided with two rollers mounted on its outer face at diametrically opposite points thereof, a rotatable cam provided with a circular cam track receiving both of said rollers to lock said shaft against rotation, said track being provided with a non-circular portion, and said cam having a by-pass connecting opposite portions of said track and'adapted to receive one of said rollers while the other is engaged by the non- -circular portion of the track, and mechanism for continuously rotating said cam to successively cause each of said rollers to enter the non-circular portion of said track and rotate said shaft one half-turn.

6. The combination with a rotatable carrier, of means for intermittently rotating said carrier in 180 degree steps, said means including a shaft onwhich said carrier is mounted, a disk on said shaft provided with two rollers mounted on its outer face at diametrically opposite points thereof, a rotatable cam provided with a circular cam track receiving both of said rollers to lock said shaft against rotation, said track being provided with a non-circular portion, and said cam having a by-pass connecting opposite portions of said track and adapted to receive one of said rollers while the other is engaged by the non-circular portion of the track, and mechanism for continuously rotating said cam to successively cause each ofsaid rollers to enter the non-circular portion of said track and rotate said shaft one halfturn.

. '7. In combination with a shaft, a disk on said shaft provided with two rollers mounted on its outer face at diametrically opposite points thereof, a rotatable cam provided with a circular cam track receiving both of said rollers to lockthe shaft against rotation, said track being provided with a non-circular portion and said cam having a by-pass connecting opposite portions of said track and adapted to receive one of said rollers while the other is engaged by the non-circular portion of the track, and mechanism for continuously rotating said cam to successively cause each of said rollers to enter the non-circular portion of said track and rotate said shaft one halfturn.

HENRY H. WHEELER.