US2563032A - Cigar bunching machine - Google Patents

Description

1951 K. E. GRANSTEDT 2,563,032

CIGAR BUN CHING MACHINE Filed Feb. 21, 1946 4 Sheets-Sheet l liq-i 10 f I o Aug. 7, 1951 K. E. GRANSTEDT CIGAR BUNCHING MACHINE 4 Sheets-Sheet 2 Filed Feb. 21, 1946 ,1951 K. GRANSTEDT 2,563,032

CIGAR BUNCHING MACHINE Filed Feb. 21, 1946 4 Sheets-Sheet 4 ,MZQ' 26" 45 "9 fill 44. 4/ i M J 4b 5 L'Lyi Patented Aug. 7, 1951 S" ATENT OFFICE CIGAR BUNCHING MACHINE Karl Erik Granstedt, Stockholm, Sweden, assignor to Arenco Aktiebolag, Stockholm, Sweden, a Swedish joint-stock company Application February 21, 1946, Serial No. 649,317

' 1 Claim. (01. 131 44) This invention relates to improvements in cigar bunching machines and it' is concerned particularly with machines of the type in which the tobaccofiller is rolled over alead plate or table by a looped apron and roller cooperating therewith.

It is-an object of the invention to provide a machine of the kind referred to. with a perfectly operating-safety device, preventing accidents which are likely to occurat manually served parts of said machine. The nature and characteristic features of the invention will be more readily understood from the following description taken in connection with the accompanying drawings in which:

Fig. 1 is a front elevational view of a cigar bunching machine embodying the main features of the invention;

Fig. 2 is a vertical sectional view on the line II-II of Fig. 1;

Fig. 3 is a plan view on an enlarged scale of the machine;

Fig. 4 is a front view on a still more enlarged scale of the main features of the invention;

Fig. 5 is a sectional view on line VV of Fig. 4; and Fig. 6 is a sectional view similar to Fig. 5 but showing some parts in other operating positions.

Referring to the drawings, the machine has a bunch rolling table upon which is placed a bunch rolling apron 2. At its front end the apron 2 is by means of wing nuts 3 secured to the front end of the table I. At its rear end the apron 2 is by means of wing nuts 4 secured to a bar 5 extending across the machine and formed integral with two rocking arms 6 which are pivoted on a pin 55 in the machine frame I and controlled by a rocking mechanism not shown, because it does not form part of this invention.

A mechanism for delivering measured quantities of filler tobacco to the pocket 8 formed by the apron 2 comprises a funnel 9. The funnel 9 is raised and lowered at predetermined intervals, and for this purpose it is mounted on brackets I E] which in turn are mounted upon vertical rods I. The rods H are slidably mounted at their upper ends in extensions l2 projecting from a bracket 54 on the machine frame I and at their lower ends in said frame. The lowermost end of one of the rods II is rigidly secured in a socket l3 to which a link I4 is pivoted as at I5, which link is pivoted at its other end as at l6 to the outer free end of a arm ll. The other end of the arm I! is journalled on a transversely extending shaft l8 and on the outer free end of said arm I! there is mounted a roller l9 which engages in a groove 20 in a cam 2| which is secured to the main shaft 22 of the machine. It

will be seen that the funnel 9 will make one complete cycle of movements for each rotation of the main shaft 22.

To obtain the delivery of a measured quantity of filler tobacco at the proper time a block 23 is mounted within the funnel 9 in such manner as to be capable of vertical movement with respect thereto. The upper end-of the block 23 is connected by means of a rod 24 to a yoke bracket 25" which is carried by the uppermost ends of two vertical rods 26 which are s'lidably mounted in a manner similar to the rods II at their upper ends in the bracket l2 and at their lower ends in the machine frame 1. The lowermost end of one of the rods 26 is secured to a socket 21 to which a link 29 is pivotally connected as at 28 the other end of which link being pivotally connected as at 3%] to the outer free end of a lever 3|. The other end of the lever 3| is pivotally mounted on the transversely extending shaft i8 and between the ends of said lever 3| there is mounted a roller 32 which engages in a groove 33 in a cam 34 which cam is also secured to the main shaft 22 of the machine.

The tobacco filler delivered from the funnel 9 to the pocket 8 of the apron 2 is in usual manner wound up by a bunch roller 3'5 into a binder placed on the apron 2 on the table I. The bunch roller 35 is vertically adjustably and rotatably mounted on two brackets 36 each of which are secured to one of the upper ends 31 of a bifurcated lever arm 38 which ends project upwards through slots 53 in the machine frame. The lever arm 38 is pivotally journalled on a shaft 50 and provided with a roller 5| which engages in a groove 49 in a cam 39 secured to the shaft 22 so that the bunch roller 35 performs a movement forth and back over the bunch rolling table I after each delivery of a filler tobacco to the pocket 8 of the bunch rolling apron 2.

Each bracket 36 has a pair of lugs 49 in which is slidabiy mounted a rod 4|. To the front ends of both the rods 4| is secured a yoke 42 to which is secured a plate 43. The rearmost lugs and the front ends of the rods 4| are interconnected by tension springs 44. When the bunch roller 35 and thereby also the brackets 36 occupy the retracted position as shown in Figs. 3 and 5 the rear ends of the rods 4| abut each a shoulder on the machine frame. Thereby the springs 44 are tensioned and the plate 43 remains in a position in front of the lower end of the funnel 9 and the pocket 8 of the apron 2 so that the operator cannot put his fingers into the pocket 8 below the raised funnel 9. Any risk of accident will thus be obviated. When the funnel 9 has delivered a filler tobacco to the pocket 8 and been raised the bunch roller 35 starts advancing whilst the plate 43 serving as a protective shield will still remain in its position as shown in Fig. 5. Thereby the springs 44 are contracted until the ends 46 of the foremost lugs 40 abut the shoulders 41 of .the heads .48 of therods- 4|. At this moment the bunch roller 35 has advanced into a position close behind the plate 43. Consequently, the operators fingers cannot be jammed between the bunch roller '35 and the rear end ofsthezbimch rolling table. On continued forward movement of the roller 35 to the position'showninriigfifi, the rods 4] and consequently-also the protective shield 43 will advance over the bunch rolling table I. When the bunch roller 35 reaches its foremost position the arms 6 are swung hack in known manner so that theapron 2 is straightened as shown in Fig. 6. When retracting the bunch roller' 3 5 the'protective'shield 43 -wil1 follow'same until the rear ends of thero'ds l l I abut theshoulders 45. At this moment the protective shieldhas reached its initial position-as *sho-wn in FigsJZ and 5 *and -on continued retractive movement the springs-=44 aretensioned and the'arms iiareswung forward to 's1acken= the aproni. Thereby-acornplete' cycle of operation has-been :performe'd.

LI claim:

In a "cigar bunchingmachine, *a"bunchro1ling table, a bunching apron, a bunching roller cooperating with said apron by reciprocating movement over said table from and into a retracted position, movable mounting means for said bunching roller, distributing means movable towards said apron for depositing filler tobacco thereon, an uprightprotective shield comprising a plate movably mounted on an'clzrelative1to..sai'd1mounting means, meansfor moving said shield in advance of said bunching roller closely above said -apron and for retracting said shield into an up- ;right pmtective position in front of said distributing means and closely above said apron, and tmeansi'for'thenimoving said distributing means .towardssaid apron tbiehind said shield.

KARL ERIK GRANSTEDT.

REFERENCES CITED The following references are of record in the file vof this patent:

UNITED snares ,PATENTS

Images