US2435739A - Mechanism for applying adhesive to blanks in jacket forming machines - Google Patents

Description

Feb. 10, 1948, I J, CUTLER 2,435,739 MECHANISM FOR APPLYING ADHESIVE 1'0 BLANKS IN JACKET FORMING MACHINES Original Filed July 10, 1945' 5 Sheets-Sheet l Feb. 10, 1948. CUTLER I 2,435,739,

MECHANISM FOR APPLYING ADHESIVE TO BLANKS IN JACKET FORMING MACHINES Original Filed July 10, 1943 5 Sheets-Sheet 2 fl. -E- 67 I 11 I a a, ."v{ |'43" Ja /cob Cullen www- Feb. 10, 1948. CUTLER 2,435,739

MECHANISM FOR APPLYING ADHESIVE TO BLANKS' IN JACKET FORMING MACHINES Original Filed July 10, 1943 5 Sheets-Sheet 3 Jacob Cullen Gum M Feb. 10, 1948. CUTLER 2,435,739

MECHANISM FOR APPLYING ADHESIVE TO BLANKS IN JACKET FORMING MACHINES Original Filed July 10, 1943 5 Sheets-Sheet 4 Jacob. Guile Feb. 10, 1948. J, CUTLER I 2,435,739

MECHANISM FOR APPLYING ADHESIVE T0 BLA NKS IN JACKET FORMING MACHINES Original Filed July 10, 1943 5 Sheets-Sheet 5 Ja cob Guile);

Patented Feb. 10,1948

MECHANISM FOR APPLYING ADHESIVE TO BLANKS IN JACKET FORMING MACHINES Jacob Cutler, Matapan, Mass., assignor to Maryland Baking Company, Inc., Baltimore, Md., a corporation of Maryland Original application July 10, 1943, Serial No.

494,239. Divided and this application November 6, 1944, Serial No. 562,182

7 Claims. 1

My present invention relates to the adhesive applying mechanism used in a machine to form frusto-conical jackets for covering the stems of ice cream cones.

Primarily, the invention of the present appliinvention is especially adapted to be employed, cation has for its object to provide a new and embodies a supporting frame, a drive motor, a improved apparatus for applying, to the edges of vacuum pump, a magazine for the jacket blanks, the jacket blanks which are to be stuck together, a means to apply adhesive to the banks as they spots Or lines of adhesive. are withdrawn from the magazine, a means The invention also has for its object to provide for conveying the blanks from the magazine an adhesive applying means which is especially to the mandrel, a means to fold the blanks adapted to be used as a part of the complete around the mandrel and cause the gummed parts jacket forming machine which forms the subject to adhere, and .a mechanism for stripping the matter of, and is fully illustrated in, my applicajackets from the mandrel and discharging them tion filed July 10, 1943, Ser. No. 494,239, now Patfrom the machine. ent No. 2,420,417, of which application the pres The frame of the machine comprises vertical ent application is a division. corner angle bars 1, bottom side and end angle Other objects will in part be obvious and in part bars 2, top angle bars 3, intermediate side angle be pointed out hereinafter. bars 4, vertical supports 5 and horizontal sup- To the attainment of the aforesaid objects and ports 6, 6a, 6b, 6c, 6d. ends the invention still further resides in "the Mounted on the support 6 is a driving electric novel details of construction, combination and motor 1 and a vacuum pump H. The motor 1 arrangement of parts, all of which will be first has a drive pulley 9 and a smaller drive pulley 10 fully described in the following detailed descripsecured to its shaft 8 (see Fig. 3), while the pump tion, and then be specifically pointed out in the shaft I2 carries a large driven pulley l3. The appended claims, reference being had to the acpulleys 9 and I3 areconnected by a belt l4, therecompanying drawings, in which by constituting a reduction-speed drive .for the Fig. 1 is a top plan view of the machine of my pump. The small pulley I0 is connected by a belt aforesaid application, showing the present in- I! to a large pulley I6 on a stub shaft ii, The vention therein. pulley I6 is secured to the stub shaft l5 as is also Fig. 2 is a side elevation of the same, parts bea pinion l8 which meshes with a master gear 20. ing omitted. on a cam-shaft [9.

Fig. 3 is an elevational view of the machine, The cam-shaft I9 is journaled in suitablebearparts being omitted, looking at the side opposite ings 2| that are mounted on supports 22 which Fig. 2. are carried by the side bars 2 of the frame.

Fig. 4 is an enlarged detail elevation of the ad- Secured to the bars 4 is a transverse angle bar hesive mechanism proper, looking from left to 23, there being another such bar 23 mounted .beright in Fig. 5. low and secured to the supports 22. Secured, at

Fig. 5 is a section on the line 5-5 of Fig. 4. suitably spaced intervals, to the bars 23 are verti- Fig. 6 is a top planview of the mechanism cal supports 24 for the pivots 255 of the several shown in Fig. 4. cam levers shown in detail in Figs. 10 and 11 Fig. 7 is an enlarged detail plan view of the inclusive. blank-removing and carrying fork member of The operating cams the Jacket formin machine, showing how it carg ries the blank and illustrating the position of the ri g o t a ly to F1gs. 8 to 11 i adhesive applicator with respect to the fork, clusive, it will be seen that the several cams com- Figs. 8 to 11 inclusive are detail views of the pr pl la ps that carry the various rollers. cams and cam levers for operating the several n Fig. 8 is shown the cam 42 and its lever 43 parts of t mechanism or apparatus of the preswhich serves to effect the raising and lowering of ent invention the jacket-blank carrier when the carrier fork is Fig, 12 is a detail elevation of the adhesive apbeneath the magazine. Fig. 9 shows the j plicator shaft and its fingers and cam. blank carrier advancing cam 31, the jacket-blank Fig. 13 is a cross section on the line l3|3 of carrier retracting cam 39 and the respective arms F 12, 38 and 40 of the lever II which cooperate with the In the drawings, in which like numerals and cams 31 and 39. Fig. 10 shows the vacuum conletters of reference indicate like parts in all the figures, thesame reference characters have been employed as in my original application aforesaid.

In general, the machine in which the present 3 trol cam 44 and its lever 45. Fig. 11 shows the cam 3| and lever 32 which effect the operation of the glue (or other suitable adhesive) applicator. In Fig. l the mandrel is indicated by I9 and the folding blades by 55 and 53 respectively; as they form no part of the present invention, they will not be further referred to or described.

The rod 95, between the upper and lower bearings 94, carries a spring 97 and a spring-tension-adjusting collar 99. The shaft or rod 95 is held from turning on its axis by means of an arm 258 whose end is slidable in a vertically slotted stud 259 that is secured to the bracket 89 (Fig. 3).

The jacket blank transfer member 99 includes converging arms IIlI having along their upper faces longitudinal grooved portions I 92. Ducts I94, I95 are formed in the member 99 and communicate with ports I93 in the grooved portions I62 (Fig. '7). The duct I95 is connected to a flexible duct I91 by means of a nipple I99. The duct I01 is connected to the suction regulating valve I25 that communicates with the suction pump II via fitting I27, flexible duct I24, rigid duct I23, suction control valve II9, and flexible duct I22 (Figs. 2 and 3).

Brackets I98, secured to the frame of the machine, carry a rock shaft I09 having an arm II9. A connecting rod I I4 connects arm III! with cam lever 43 (Figs. 2 and 8). Secured to the shaft I99 is a lever or rocker arm III having a beveled edge H2. The lever III lies in the plane in which the rod 95 is moved by the carriage 9| so that when the carriage is in its retracted or back position the rod 95 will have ridden up onto the end of lever III (Fig. 3). A spring H3 connects the rear end of lever III with the frame of the machine and constantly tends to urge the lever III to lower its beveled end.

The sliding carriage 9| also has a slotted lug II5 to which is pivoted one end of a link II6, the other end of which is pivoted to the cam lever 4|. I

The suction control (on and off) valve II!) has its stem I linked to lever II8. One end of the lever H8 is pivoted to a bracket III, while the other end thereof is joined by a spring I32, constituting a yieldable connection, to the connectmg rod'l3l that joins to cam lever 45. The valve I I9 is of a special kind in order to effect properly the timely action of the suction means. The valve is moved to to its open position by a spring I2I. A vacuum regulating valve I is provided to ifregliiilate the degree of vacuum in the transfer The adhesive applying mechanism Referring now more particularly to Figs. 1, 2, 4 and 5, it will be observed that a plate I 9i is mounted n the frame of the machine. The pot I98 for adhesive is secured on this plate and the power transmitting mechanism therefor is also mounted on the plate.

The pot I98 has a cover I99 which is cut away,

4 at 2! to provide a filling opening and at 299 to allow clearance of the adhesive rollers.

Journaled in suitable bearings 299, supported on plate I9! is a shaft 293 which passes through the pot and carries the lower adhesive-gathering roller 292. Outside the pot the shaft 293 carries a gear 294 and a driven gear 295, the latter gear meshing with a gear 291 on a shaft 298 which is journaled in a bearing 209 (which bearing is supported on plate I91).

Journaled in a bearing 2I2 (which bearing is supported on plate I91) is a drive shaft 2I I. The shafts 2H and 293 are connected by bevel gears 2I9 and are driven by a sprocket and chain connection 2I3, 2M, 2I5 from cam shaft I9.

Cast with the pot I98 are side posts 2I9 between which, at 2I'I, is pivoted a skeleton frame 2I8' which carriesthe shaft 222 of the upper adhesive-spreading roller 223. The frame 2I8 has an ear 2I9 which is adjustably connected to the rigid threaded post 22I to hold the rollers 292 and 223 in contact or so close together as to provide a thin layer of adhesive on the surface of roller 223. The post 22l is secured to the base extension 220 of the adhesive pot I98, as best shown in Fig. 5.

A gear 224, fast to shaft 222, meshes constantly with gear 294.

Standards 225 are fastened to the pot I98 and carry a shaft 227 on which is secured a skeleton frame 229, in the free ends of Whose arms is journaled a shaft 232 which has a back 233 and a clamp plate 234 between which the applicator finger-plates 239 (preferably metallic) are secured by means of screws 235 (Fig. 12). The frame 229 has an arm 229 to which is pivoted a connecting rod 229 that connects to the cam lever 32 (Figs. 3 and 11) A spring 249 connected to lever 32 and anchored to the frameof the machine continuously tends to swing the frame 226 5 counter clockwise in Fig. 5.

The shaft 232 carries a gear 23'! that normally meshes with gear 224. A cam 238, fixed to the shaft 232, cooperates with the fixed cam track 239 that is mounted on the posts 2I9.

As the blank transfer member is raised to contact the lowest blank in the magazine, the' ap' plicator shaft 292 is also raised and the fingers 239'move alongside the adjacent furcation II of the member 99 so as to contact the blank as it is being pulled down by suction onto the member 99 in order to give a wiping action of the blank over the edges of the applicator fingers to brush on the adhesive. If desired, the fingers may be timed to apply the paste before the blank is sucked down.

Operation Assumethe parts to be in the positlon shown in Figs. 1, 2 and 3. At this time the blank transv draw down the bottom blank from the magazine. As soon as the blank has adhered totheqarms ll of the fork '99, the fork is instantly lowered, whereupon the carriage 89 is advanced toward the mandrel 10.

Upon the parts leaving the position shown in Figs. 1,2 and 3, cam 3|, acting on lever 32, causes frame 226 to be moved on its pivot from the full line to the dotted line position of Fig. 5. In doing so gear 231 is unme'sh'ed from gear 224, cam 238 is engaged with track 239 and the blades 236, which were previously rotated to contact roller 223, are brought to vertical position and raised alongside an arm of the fork 99 into contact with the bottom blank of the stack to deposit two spaced lines of adhesive on the blank. The fingers are so positioned that the lines of adhesive will register with the spaces between the furcations of the folding plate when the blank is on the mandrel. Having raised the applicator to the blank, the cam then releases lever 32' and the spring 240, assisted by the cam, restores the lever 32 to its rest position (Fig. 11) and permits gear 231 to drop into mesh again with gear 224. Gears 224 and 202 turn constantly during the operation of the machine.

By adjusting the connection between the ear 219 and the bolt 221, the distance between rollers 202 'and 223 can'be varied to adjust the thickness of the film of adhesive adhering to roller 223 and hence adjust the amount which will be taken off on the ends of the applicator fingers.

From the foregoing description, taken in connection with the accompanying drawings, it is thought that the construction, operation and advantages of the invention will be clear to those skilled in the art.

What I claim is:

1. In a machine wherein is provided a magazine for stacked blanks, the combination of an adhesive applicator, means to raise the applicator to a position beneath the stack of blanks and apply adhesive to a portion of the underside of the lowermost blank in the stack, a blank transfer device and means to raise the end transfer device into contact with the underside of the blank to which the adhesive has been applied and including means to draw said blank down from the magazine and into wiping engagement with said applicator while said applicator is still in the raised position.

2. In a machine of the class described wherein jacket blanks are spotted with an adhesive, removed from a magazine and shaped around a mandrel: the combination of a magazine for holding a stack of flat blanks; a jacket blank transferring mechanism for lowering blanks one at a time from the bottom of the stack; and means including an adhesive applicator to apply adhesive to the underside adjacent the longitudinal edge of the blank in the magazine, said blank transferring mechanism having provision for drawing the blank over the said adhesive applicator to effect a brushing action on the adhesive as the blank is withdrawn from the magazine.

3. In a machine of the character described: a vertical magazine for a stack of flat blanks; and means to apply adhesive to the under side of the lowermost blank in the stack adjacent one edge of the blank, said means including a pot for fluid adhesive, a roller rotatable in the pot; a second roller above the first roller, an adjustable frame carrying said second roller, gears constantly connecting said rollers, a pivoted frame carried by said pot, a rotatable shaft carried by said pivoted frame, a gear on said shaft for meshing normally with the gear of said second roller, an applicator finger carried by said rotatable shaft, a cam on said rotatable shaft, a cam track cooperating with said cam for positioning said finger so as to engage the blank when raised thereto, and means to rock said pivoted frame to raise and lower said rotatable shaft and finger, the gear on said rotatable shaft unmeshing from the gear of the second roller when said finger-carrying shaft is raised, said finger rotating into contact with said second roller to pick up adhesive when in its lowered position, and means for turning said first mentioned roller.

4. In a machine of the class described wherein there is provided a magazine for stacked sheet blanks, and means for removing blanks successively from the magazine through the bottom thereof, the improvement which comprises: a glue pot; a glue roller journaled on the pot; a second glue roller; a member carrying said second glue roller; means for adjustably holding said second glue roller over said first mentioned glue roller in operative position with relation to the same; means for driving said rollers together constantly; an applicator shaft; applicator fingers carried by said applicator shaft; pivoted arms having bearings to carry said applicator shaft; means to rock said pivoted arms to apply the applicator fingers to said second glue roller; means for turning said applicator shaft while said applicator shaft is adjacent said second glue roller; and means for holding said applicator shaft against rotation with the applicator fingers in position to engage the blank and thus apply adhesive to the blank.

5. In a machine of the class described wherein there is provided a magazine for stacked sheet blanks, and means for removing blanks successively from the magazine through the bottom thereof, the improvement which comprises: a glue pot; a, glue roller journaled on the pot; a second glue roller; a member carrying said second glue roller; means for adjustably holding said second glue roller over said first mentioned glue roller in operative position with relation to the same; means for drivin said roller together constantly; an applicator shaft; applicator fingers carried by said applicator shaft; pivoted arms having bearings to carry said applicator shaft; means to rock said pivoted arms to apply the applicator fingers to said second glue roller; means for turning said applicator shaft while said applicator shaft is adjacent said second glue roller; and means for holding said applicator shaft against rotation with the applicator fingers in position to engage the blank and thus apply adhesive to the blank, said last named means including a cam on said applicator shaft and a fixed cam track for said cam.

6. In a machine of the class described wherein there is provided a magazine for stacked sheet blanks, and means for removing blanks successively from the magazine through the bottom thereof, the improvement which comprises: an adhesive reservoir; a first adhesive roller journaled in said reservoir; means for rotating said roller; a pivoted frame located above the reservoir; posts on which said frame is pivoted;-a secand adhesive roller carried by said pivoted frame to cooperate with said first adhesive roller; an adusting screw to adjust said frame to bring the rollers closer together or farther apart; gears connecting said rollers to turn together; standards;

adhesive applicator arms pivoted to said stan d ards; an adhesive applicator shaft journaled in said adhesive applicator arms; normally meshing gear connections between said second adhesive roller and said applicator shaft; applicator fingers carried by said applicator shaft to engage with said second adhesive roller when said applicator shaft is rotating; means for rocking said applicator arms tqunmesh the gear connection between said applicator shaft and said second adhesive roller; and means for holding said applicator shaft against rotation with the fingers in position to apply the adhesive to the blank after said applicator arms shall have been rocked.

7. In a machine of the class described wherein there is provided a magazine for stacked sheet blanks, and means for removing blanks successively from the magazine through the bottom thereof, the improvement which comprises: an adhesive reservoir; a first adhesive roller journaled in said reservoir; means for rotating said roller; a pivoted frame located above the reservoir; posts on which said frame is pivoted; a second adhesive roller carried by said pivoted frame to cooperate with said first adhesive roller; an adjusting screw to adjust said frame to bring the rollers closer together or farther apart; gears ards; adhesive applicator arms pivoted to said standards; an adhesive applicatorshaft journaled in said adhesive applicator arms; normally meshing gear connections between said second adhesiveroller andsaid applicator shaft; applicator fingers carried by said applicator shaft to engage with said second adhesive roller when said applicator shaft is rotating; means for rocking said applicator arms to unmesh the gear connection between said applicator shaft and said second adhesive roller; and meansfor holding said applicator shaft against rotation with the fingers in position to apply the adhesive to the blank after said applicator arms shall have been rocked, said last named means including a cam on said applicator shaft and a fixed cam track for engagement by said cam.

. JACOB CUTLER.

REFERENCES CITED Thefollowing references are of record in the file of this patenti 3 UNITED STATES PATENTS

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