US2324486A - Wrapper paster roll - Google Patents

Description

July 20, 1943. s. CLAUSEN WRAPPER FASTER ROLL Filed Sept. 16, 1939 2 Sheets-Sheet 1 mm mm SEGURD cLAUsEN ATTORNEY July 20, 1943. s. CLAUSEN WRAPPER FASTER ROLL Filed Sept. 16. 1939 2 Sheets-Sheet 2 NWN NWN www IINVENTOR SEGURD CLAUSEN )1, ,l v I I ATTORNEY Patented July 20, 1943 WRAPPER ras'r'an non. Sigurd Clausen, Brooklyn, N.-:Y., assignor to International Cigar Machinery poration of New Jersey I Application September 16, 1939, Serial No. 295,173

14 Claims. (cl. 131-21) This invention relates to the fabrication of cigars, especially to the application of wrappers to the cigars, and more particularly to a wrapper paster mechanism for use in conjunction with a cigar machine of the type embodying a suctional transfer head provided with means to maintain the suctional effect and with mechanism to move the transfer head in a cycle during which the wrapper is carried from a cutting and shaping die to a rolling mechanism. Various machines of this type are known to those who are skilled in the art, and the present invention is applicable to the several machines.

The operation of applying the flag end of a wrapper to the pointed end of a cigar involves the provision of mechanism for supplying paste to the inner side of the flag end of the wrapper, and it is desirable that such mechanism shall not apply paste indiscriminately to the entire inner surface of the flag end, with the result that an excessive amount of paste exists upon the flag during the pasting operation and subsequent steps incidental to finishing the complete cigar.

Another disadvantage in operation of some makes of conventional wrapper pasters is that in some distances when the suctional transfer head hasfailed to pick up a wrapper, or the wrapper has been incorrectly spread over the perforated under surface of the transfer head, or is of insuiiicient size to cover the perforations in the head, the paster mechanism has acted to daub paste against the exposed perforated surface of the head, rendering the same undesirably adhesive and clo ging the perforations so that the suctional effect is impaired, wrappers are misplaced and spoiled and considerable waste of material and loss of time ensues.

Under such conditions it is an object of the present invention to provide means for applying paste by a roller exclusively to the portion or portion of the flag end of a wrapper where it is necessary to accomplish proper adhesion to the pointed end of the cigar, without leaving any excess of paste, and preferably to apply the requisite paste in a substantially curvilinear trace conforming to the curved margin of the flag end of the wrapper, and leaving paste-free the area of, the flag end within such marginal trace of paste, and which is to enwrap the point of the cigar.

A further object of the invention is to avoid the application of undesiredpaste to the'exposed perforated surface of the transfer head in the absence of a wrapper thereon or if a wrapper be improperly shaped or positioned, and thus to ompany. l 001'- prevent soiling of the perforated surface of the head and clogging of its perforations.

Bearing in mind the above objects, the invention consists in the provision of a wrapper paster mechanism with a roller paster devic for use in conjunction with a cigar machine of the type provided with a suctional transfer head havin means to maintain it suctional effect and means to move said head through a predetermined transfer cycle preferably operating with a dwell at a given point, the wrapper paster mechanism comprising a paster roller and means to engage said paster device operatively with a cigar wrapper. carried by said head, at said dwell; the invention consisting alsb in applying to the flag end of the wrapper a paste carrying salient constructed and arranged to be engaged with the flag end in a substantially curvilinear-trace conforming to the marginal contour of the flag end and leaving paste free the central area of the flag end bounded by said trace. f

As ancillary features, the invention consists in associating the paste-applying roller with a paste reservoir which is moved bodily to cause traverse of the roller in its paste-applying position; and the invention consists also in means to incapacitate the elevating mechanismin the absence of a leaf upon the suction transfer head.

Other objects and features of the invention will appear as the description of the particular physical embodiment selected to illustrate the invention proceeds.

In the accompanying drawings, like characters of reference have been appl ed to corresponding parts throughout the several views which make up the invention, in which:

Fig. l is a view in elevation, partly in section, of a wrapper pasting mechanism in the construetion of which the present invention has been embodied, and shown in conjunction with associated parts of a cigar machine;

Fig. 2 is an end elevation of the same;

Fig. 3 is a fragmentary detail view in end elevation taken on the line 3-3 of Fig. 1;

Fig. 4 is a development of the periphery of the paster roll, showing the paste-applying salient: and

Fig. 5 is a fragmentary detail view in plan showing the flag end of a cigar wrapper, with a curvilinear trace of paste applied to the under side thereof, as indicated in dotted lines.

Fig. 6 is a view in plan showing the transfer head and the mechanism for moving the head, shown in conjunction with the wrapper cutting die and the wrapping device.

In a now-preferred embodiment of the invention selected for illustration and description, the part designated by the reference character I8 is the base or a part of the supporting structure of a cigar machine of the type which is provided with a suctional transfer head 23 provided with means, indicated generally at 22, of conventional, or otherwise suitable form, for maintaining the suctional effect, and means (not shown) to move the transfer head in a predetermined transfer cycle for transferring a cut and shaped wrapper W from a cutting and shaping station to a rolling station, (not shown), the moving mechanism being suitably controlled to cause the head 23 to dwell at a pasting station defined by the position of the paster mechanism, as indicated in Fig. 1.

The supporting base l8 carries brackets I3 and I4, and a housing I2 with an enclosure |5 which supports a shaft |6 carrying a walkingbeam lever l1,"one arm of which is connected pivotally to a piston rod l3 and piston l9 working in a cylinder 28 which is in communication through a pipe 2| with the suction system of the cigar machine, and is in communication through a pipe 22 with the suction chamber of the transfer head 23, these parts being shown in somewhat fragmentary form, as they are wellknown to those skilled in the art of fabricating cigar machines.

The other arm of lever I1 is provided with a nose 24 adapted to engage a step 25 of a cam lever 26 and in this'latched position it retains the paster roll 21 in the position shown in Fig. 1. The lower end of lever 26 is equipped with a cam follower 28 held in engagement with a cam 29 by a tension spring 38. The cam 29 is fixed on a countershaft 3| supported by the brackets l3 and I4, said countershaft also carrying a bevel gear 32 meshing with a bevel gear 33 fixed on a driving shaft 34 carried by the stand I I. The shaft 34 is driven by suitable means from the maindrive shaft of the machine (not shown).

The extending arm 35 of lever 26 supports one end of an adjustable rod 36 connected to an arm 31 of a bell crank lever 38 attached to a pivot shaft 39 mounted in hubs of a paste receptacle 48. The opposite end of shaft 39 supports an arm 4| which at its upper end, carries one end of a shaft 42. The shaft 42 at its other end is carried by the upper portion of lever 38. When the members 24- 25 become unlatched by means to be hereinafter described, the cam 29, through link 36, allows arm 31 to ascend under the influence of spring 38 and turn shaft 39 thereby causing lever 33 and arm 4| to swing and raise the roll 21 to a position allowing the hump 43 of the roll to contact the wrapper and apply paste at the fiag end of the same.

A cam 44 fixed on countershaft 3| actuates a cam follower 45 provided on a lever 46 pivotally mounted on another countershaft 41 carried by the brackets I3 and I4. The upper end of lever 46 supports one end of an adjustable rod 43 connecting to a lug 49 of a cross bar 58, said bar being attached to one end of-shafts 5| and 52 slidably mounted in hubs of the stand The adjustment of rods 48 and 33 may be accomplished by turning them in a conventional manner in their end shackles, the latter having right-- and-left threads as usual in providing for such adjustments. The paste-reservoir carriage 48 is attached to shafts 5| and 52 by means of lugs 53, a depending arm 54 of the reservoir-carriage supporting a shaft 55 having a gear 56 fixed thereto and adapted to mesh with a stationary rack 51 carried by brackets 66 attached to the stand The other end of shaft 55 is equipped with a gear 53 mounted loosely on a bushing 69 fixed in bearing 54, the gear 53 meshing with a gear 59 fixed on a sleeve 63 turning on shaft 33, the gear 59 meshing with a gear 68 loose on shaft 42. The paster roll 21 is adjustably mounted on the hub of gear 68 by a set screw 61, providing means for setting the portion 43 correctly in respect to the fiag end of the wrapper. Shaft 55 also carries a loosely mounted ratchet wheel 6| which is attached to gear 53, said ratchet wheel being provided with a tooth 62 adapted to be engaged and driven by a pawl 63 attached to an arm .64 fixed on shaft 55.

It is clear that as the shafts 5| and 52 are moved to and fro by cam 44, the gear 56, in engagement with the rack 51, when turning in one direction will cause the.pawl 63 to engage and turn ratchet 6| one revolution and thereby turn gear 58 and gears" and 68. With the roll 21 in its raised position the turning of the same imparts rolling contact of the paste carrying salient 43 with the wrapper W, thus applying paste P to the same, as indicated in Fig. 5. When the gear 56 turns in the opposite direction, the pawl 63 becomes disengaged from its tooth 62 whereby the ratchet 6| and its gear 53 will remain stationary and consequently gears 59 and 68 will remain inactive during this cycle of the machine.

It is to be understood that in the wrapping operation the wrapper leaf W is suspended by suction from the carrier 23 which halts for a short time on its way to the wrapping device as already noted, to receive the paste; hence the latter is applied at this dwell position.

The salient or raised portion 43 of the paster roll 21 receives adhesive from a roller 65 fixed on sleeve 63 and which is partly submerged in the adhesive stored in reservoir 48.

When in the normal operation of the cigar machine, a wrapper covers the suction holes provided in the bottom of the carrier 23, the suction in chamber 28 is strong enough to pull down the piston I9 and thus unlatch members 24 and 25, permitting the cam 29 to allow the paster roll 21 to rise to a position in which its raised portion 43 will engage the wrapper. On the other hand, when the suction holes of the carrier 23 are open, as when running idle, or through the failure of the head to pick up a proper wrapper, or to pick up a wrapper properly, most of the suction in pipe 2| is spent through pipe 22, leaving in chamber 28 an insufficient amount to depress piston l9 and thus the members 24-25 will remain latched and the roll 21 will not be lifted, thereby preventing paste from being smeared onto the carrier 23, and so avoiding also the clogging of the perforations with paste.

Referring to Fig. 4, the raised portion 43 of the paster roll 21 is shaped to conform to the flag end of the wrapper W shown in Fig. 5. The outline of portion 43 is preferably slightly smaller so as to apply the paste P close to the edge of the wrapper and yet avoid smearing the carrier. The central area bounded by the substantially curvilinear trace P is thus left paste-free.

It is to be noted that the shaft 55 is free to turn in bushing 69 in order to prevent trans-' mission of an undesired turning effect therefrom which might cause improper lifting of the roll 66.

There will now be described suitable mechaasaame nism for moving the transfer head from the cutting die to the rolling mechanism by referring to Fig. 6, wherein is shown mechanism similar to that disclosed in my prior Patent No. 2,215,461, issued September 24, 1940.

Columns I01 and I03 of the cigar machine, the latter having a base I03, respectively support vertical shafts IIII and I20. On shaft II! are mounted a horizontal cam Ill having a track (not shown), in its upper face, and a horizontal cam I I6 having a track I I1 in its upper face, and tracks (not shown) in its lower face.

Vertical shaft I20 has attached thereto a horizontal arm I2I provided with a roller I22 engaging the track in the upper face of cam Ill. The free end of arm I2I carries a-vertical stud I23 which, by means of suitable bearings supports the forked ends of a horizontal arm I21 for pivotal movement thereon. The wrapper carrier head 23 is rotatably mounted on the free outward end of arm I21. The upper fork end I23 of arm I21 is extended inwardly and carries two rollers I29 and I30 engaging the tracks in the lower face of cam H6. A boss I3I on arm I21 supports a stud I32 on which is pivoted ahorizontal arm I33 having a roller I34 in engagement with track H1 of cam IIG.

Carrier 23 is attached to the lower end of a flanged sleeve I35- turnably held in the free end of arm I21 by a cap I36, whileto the upper flange end of sleeve I35 is aflixed a gear I31 meshing with a gear sector I38 carried by the free end of arm I33. The gear I31 is preferably made in two coaxial relatively turnable adjustable narrow parts in order to take up the slack of the meshing teeth. Into sleeve I35 is loosely inserted a flanged sleeve I39 provided with a flange field held therein by a disk I40 attached to gear I31 and overlapping the flange portion of the sleeve which forms the delivery end of a flexible tube Ill carrying the suction to the suction holes of the carrier head 23. Sleeve I39 passes through an aperture I43 provided in arm I33, this aperture being of the proper lateral extent to permit the required annular movement of arm I33. The other end of tube Ill is attached tothe pipe 22 shown in Figs. 3 and 5.

The bunch B is delivered to the wrapping device I60. While the bunch B is being wrapped in the wrapping device I60, the wrapper W for the next following bunch is being cut on the die I1I by cutting rollers (not shown). The wrapper carrier head 23 picks up the wrapper W and carries it along the closed and irregularly curved path I59. As the carrier moves the wrapper to the wrapping position it is held stationary for a short period of time at the paster position thereof, designated 233 on the drawings. Following the application of paste the carrier moves on through its predetermined path in the wrapping position and the wrapper is completely applied to a bunch.

What is. claimed is:

1. A wrapper paster mechanism for use in conjunction with a cigar machine of the type provided with a suctional transfer head having means to maintain its suctional effect, and means to move said head through a predetermined transfer cycle, operating with a dwell at a given station, said mechanism comprising a paster roll having a raised paste-applying surface of substantially curvilinear contour, and means to cause said raised paste-applying surface to be engaged rotatively with said wrapper at said dwell. I!

2. A wrapper paster mechanism of the class described, for applying paste to the flag end of a cigar wrapper, preparatory to rolling, com-' prising a paste roller having a salient portion constructed and arranged to be applied rotatively to the flag end of a shaped cigar wrapper at a stationary position of the wrapper in course of transfer from a cutting and shaping station to a bunch-wrapping station, and means for rotating said roller while moving it rectilinearly along the stationary wrapper to apply paste to a predetermined area of the flag end of the wrapper.

3. A wrapper pasting mechanism having the features claimed in claim 2, wherein said salient portion has a substantially curvilinear contour conforming to the marginal contour of said flagend, and adapted to leave paste-free a central area of said flag end corresponding to the wrapper portion enwrapping the pointed end of a cigar.

4. A wrapper paster mechanism for use in conjunction with a cigar machine of the type provided with a suctional transfer head having means to maintain its suctional eifect and means to move said head through a predetermined transfer cycle, operating with a dwell at a given station on said cycle: said wrapper paster mechanism comprising a supporting structure defining said station, a driving shaft co-ordinate in operation with the cigar machine, a countershaft, a paste reservoir carriage mounted to slide bodily upon guides on said supporting structure, and provided with a set of gears including a first gear, a second gear and a third gear, intermeshing in the order named, a bearing carried by said reservoir-carriage, a bushing held in said bearing, upon which bushing said third gear is mounted loosely, a fourth gear mounted loosely on said bushing, a stationary rack on said structure and with which said fourth gear meshes, acting, when the reservoir-carriage moves slidingly, to rotate, and in turn to actuate relatively the countershaft, third gear, second gear and first gear, a paster-roller co-rotative with said first gear, a bell-crank lever having arms and a shaft movable swingingly around the second gear axis, a feed roller rotatable with said second gear and having a portion of the periphery running within the paste supply and serving to feed paste to said paster roller, a cam-shaft operated by said drive shaft and having a first cam with connections to impart an oscillating motion to 'said reservoir carriage, by virtue of which said fourth gear is rotated as it runs along said rack, serving to rotate in turn the set of gears, and also to operate the feed roller and paster roller, and a second cam on said cam shaft with connections acting to impart planetary motion to said first gear, thereby to move it to a pasting station adjacent to the path of the transfer head when i the reservoir carriage is moved in one direction, and acting to retract said first gear and paster roller to an inoperative position at said station when the reservoir-carriage is moved in reverse.

5. A wrapper paster mechanism for use in conjunction with a cigar machine of the type provrgled with a suctional transfer head having means to maintain its suctional effect and means to move said head through a predetermined transfer cycle; said wrapper paster mechanism including a paste reservoir carriage and a paster roller with operating gearing and a cam-shaft provided with cams, followers and connections constructed and arranged to operate said paster walking beam, said last-named means including a cylinder, a piston working therein, responsive to a fluid-pressure differential as between cylinder spaces at opposite faces of said piston, one of said spaces being connected by a duct to said suctional transfer head, and said piston being so controlled that with normal suctional effect prevailing in the low pressure side of said cylinder it will trip the detent, as when the suction head is substantially sealed by a wrapper in transit, whereas when the absence of a wrapper opens the suctional head to atmosphere and diminishes the suctional effect, the piston is released from suction of an order adequate to trip the detent, and means to bias said detent to its position of engagement with said'step to incapacitate said paster roller and hold it out of pasting position, thereby preventing said suction head from being soiled by paste in the absence of a wrapper to be pasted.

6. In a cigar machine having a carrier for an outspread flagged wrapper, adhesive applying mechanism for pasting the flag end of the outspread flagged wrapper on said carrier comprising in combination, a rotatable pasting element having a cylindrical pasting surface of such configuration as to engage the marginal portions of the flag while leaving interior portions of the flag unpasted, paste supplying means coacting with said element to apply paste to said surface, and means cooperating with said element and carrier to roll said surface across the flag on said carrier and apply the paste to said marginal portions of the flag.

7. In a cigar machine having a carrier for an outspread flagged wrapper, adhesive applying mechanism for pasting the flag end of the outspread flagged wrapper on said carrier comprising in combination, a rotatable pasting element having a cylindrical pasting surface of such configuration as to engage the marginal portions of the flag while leaving interior portions of the fiag unpasted, paste supplying means coacting with said element to apply paste to said surface, and means cooperating with said element and carrier to roll said surface across the flag on said carrier and apply the paste to said marginal portions of the flag, said last-named means including mechanism imparting bodily movement of the axis of rotation of said element toward and away from said carrier to bring said surface in to and out of operating position relative to said flag.

8. In a cigar machine having a carrier for an outspread flagged wrapper, adhesive applying mechanism for pasting the flag end of the outspread flagged wrapper on said carrier comprising in combination, a rotatable pasting element having a cylindrical pasting surface of such configuration as to engage the marginal portions of k the flag while leaving interior portions of the flag unpasted, paste supplying means coacting with said element to apply paste to said surface, and means cooperating with said element and carrier to roll said surface across the flag on said carrier and apply the paste to said marginal portions of the fiag, said last-named means including mechanism for imparting bodily movement to the axis of said element relative to said carrier in a direction generally parallel to the plane of the flag in order to roll said surface over the flag.

9. A device 'for pasting the flagof a cigar wrapper comprising a rotatable pasting element having a cylindrical pasting surface of such configuration as to engag the marginal portions of the flag while leaving the interior portions of the flag unpasted, amember supporting said element for rotative movement, and means permitting circumferential adjustment of said element on said member for setting said pasting surface correctly with respect to the flag end of the wrapper to be pasted.

10. Adhesive applying mechanism for a cigar machine of the type having a movable supporting device adapted to position a tobacco leaf section, said mechanism comprising an adhesivereservoir; an adhesive-applying roller associated with said reservoir, means to move said reservoir bodily toward an adhesive-applying station adjacent to the path of said movable leaf supporting and positioning device,-and means for elevating said roller from adhesive-receiving to an adhesive-applying position.

11. In a cigar machine having suctional means for supporting a tobacco leaf section in a stationary position for application of adhesive to the leaf section, a rotary member having a salient on its periphery adapted to apply adhesive within the margin of the stationary leaf section supported by the suctional means, and means for moving said member into engagement with the stationary leaf section and rotating said member while advancing itrectilinearly alo the stationary leaf section to cause said 'sali t to apply adhesive within the margin of the stationary leaf section.

12. In a cigar machine having suctional means for supporting a tobacco leaf section in stationary postion for application of adhesive to one end of the leaf section, a rotary member having a salient on its periphery adapted to apply adhesive in a curvilinear trace within the margin of one end of the stationary leaf section supported by said means, and means for rotating said member while advancing it rectilinearly along the stationary leaf section to cause said salient to apply adhesive in a curvilinear trace within the margin of one end of the stationary leaf section.

13. Adhesive applying mechanism for a cigar machine of the type havinga movable leaf supporting and positioning device adapted to position a tobacco leaf section, said mechanism comprising means for applying adhesive to a tobacco leaf section on said device, an adhesive reservoir, an adhesive applying roller associated with said reservoir, means to move said reservoir bodily toward a paste applying station adjacent to the path of said movable leaf supporting and positioning device, means for elevating said paster roller from a paste receiving to a paste applying position, devices for locking said paster roll elevating means against operative movement, and means to make said locking devices ineffective when a leaf section is properly supported by said movable supporting device.

14. In a cigar machine, the combination with a perforated support for an outspread tobacco to receive paste upon its periphery from said device, means to move said paste roller into position to apply paste to the outspread leaf section on said support, a suction chamber connected to said support for applying suction to the perforations of said support, and thereby suctionally retaining the outspread tobacco leaf section on the support, and instrumentalities responsive to a change in suction created in said chamber by the absence of a leaf section on said support for preventing the operation of said means and thereby preventing the application of paste by said roller to the support.

SIGURD CLAUSEN.

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