US1812666A

US1812666A - Machine for gluing cartons

Info

Publication number: US1812666A
Application number: US302497A
Authority: US
Inventors: Charles G G Schmidt
Original assignee: PINAUD Inc
Current assignee: PINAUD Inc
Priority date: 1928-08-28
Filing date: 1928-08-28
Publication date: 1931-06-30
Anticipated expiration: 1948-06-30

Description

June 3o, 1931. C, 'Q G. SCHMIDT 1,812,666

IACHINE FOR GLUING CARTONS Filed Aug. 28, 1928 ,5 Sheets-Sheet l June 30, 1931. c. G. G. SCHMIDT MACHINE FOR GLUING -CARTONS 3 Sheets-Shet 2 F'led Aug. 28, 1928 June .30, 1931. c. G. G. SCHMIDT UACHINE FOR GLUING CARTONS Filed Aug. 215. 1928 3 Sheets-Sheet 3 555%@ btomud WWK@ Patented June 30, 1931 UNITED' STATES 12M-*ENT .ori-"ics-l i CHARLES; G. G. SGIIIWUID'I,` 0F NEW YORK, N. Y. ASSIGNOR T PINAUD INCORPQRATED,

OF NEW YORK, ZN. Y., A; CORPCRATION OF NEW YORK MACHINE FOR GLUING CAR'JIONSv Application filed August 28, 1928. Serial N0. 302,497.

This invention relates to an improved machine for gluing cartons and more particularly triangular cartons. i

' Hitherto, in this art, it has been found irnpossible to developa machine to turn out satisfactorily a triangular carton. No machine, up to the present invention, has been devised for gluing and forming a. triangular carton with three creases only, so that the finished package is a perfect triangle without any side being broken by additional scoring. In all previous practices, an additional crease had to be added so as toglue under a press as is done with rectangular cartons.

`The present invention produces a machine for gluing a triangular carton with three creases only which occur at the corners and sothat the finished article presents a perfect trianglefwith smooth'sides unbroken by an additional scoring. The invention thus lls a long-felt need in the'industry, as vit provides for the first time a machine for making satisfactorily a triangular carton.

Further objects and advantages of the in- A vention will appear as the description proceeds.

In the drawings:

Figure 1 is aside elevation of a machine constructed `in accordance with the present invention.

Figure 2 is a plan view thereof. Figure 3 is a transverse sectional view taken as on the line 33 of Figure 2.

Figure 4 is a section on an enlarged scale, in elevation, of a carton as operated upon in the practice of the invention. Y

Figure 5y is a side elevation of,` a fragment of the construction, illustrating the means for removing the finished carton from the machine.

Y Figure 6 is a plan view of a modification. Figure 7 is a. side elevation of a modification.

In detail, the invention is embodied in a construction which, as shown in Figures 1 to 5, may be in the form of a machine having frame members 10 such as angle irons or beams positioned at four corners as shown in Figure 3 and supported by suitable legs 11 5 9 and braces'lZ. The machine includes an and.

'describedare also optional and these conless belt 13 of leather or such material which is arranged in a vertical plane andv extends over pulleys 14. The pulleys are mounted on horizontal pivots 15 supported by journal members 16, the latter being carried'by the frame members 10 and attached thereto as-by bolts 17. The pulley mounting construction may be as shown in Figure 3 with the pulleys positioned between the pointed pivots" or bearings 15 which are carried on the journal members. This construction reduces friction Iand allows easy rotation of the pulleys. The

bolts 17 extend thru slots 18" in the members 10, thus providing for adjustment of the.V

journal members 16' whereby they belt tension may be varied and adjusted at will.` The journal members `may be maintained at the desired separation by means such as blocks 19 with adjusting screws 2,0. These blocks` i may, for example, be mounted between the framey members 1 0 as shown in Figure 1 and Vattachedin position by suitable fastening elements 21. j

Means for continuously driving the belti and preferably for causing a constant movement thereof, are provided, and7 as shown,

`includes a sprocket 22 on the end of a pulley shaft. The sprocket is driven by a chain 23 from another sprocket 24 which derives its" motion or rotation from; an electric motor unit 25.V The latter may be mounted on a Aplatform 26 beneath the belt and supported in any desired manner on the legs 11 and on other vertical elements or columns 27. course,l this type of drive is purely optional and may be altered at will and any means for moving the belt may be employed in the practice of the invention. The pulley mounts structions may also be varied or altered in the practice of the invention. The rotation of the sprocket 22 in the construction illus-- ytrated causes the rotation of the pulley shaft and also of the pulley mounted on the shaft and, consequently, the belt is driven by friction by the pulley and thus caused to move.

The belt may also travel over idle pulleys 2S supported on the frame members 10, the idle pulleys being provided to prevent sagf ging of the belt and to maintain a tension thereon.

The construction, as thus far described, is analogous to the usual conveyor of the belt type. This construction is therefore to be construed as optional and illustrative. The machine is, however, designed for the gluing' of triangular cartons, as represented by numeral 29 in Figure 4. The belt is provided with retaining members 30 which are spaced at intervals along its length and held in place by fastening elements 32. These members may, for instance, be of sheet metal with upturned ends forming resilent fingers 31, bent to closely embrace the lowerends of the cartons. The fingers exert a light, resilient grip upon the cartons and hold them e1;- actly as the human hand would hold them if the gluing were done by hand. The cartons are formed 'as shown in Figure 4 with three creases only which occur at the corners and so that the finished article is a perfect triangle with all the sides smooth and unbroken b v an additional scoring. One end of the sheet from which the carton is formed terminates at a corner of the cart-on and the other end is folded beneath it. The folded end is glued to the side under which it is placed by hand and the attendant then 'places the carton in a freshly glued state in the machine and between the fingers, 3l, as shown in Figure 4, so that the glued side is firmly held and the carton maintained in a fixed position between the fingers. These fingers hold the carton i ust like a human hand would and the carton isnotsubject to any appreciable pressure but comes out of the machine uncrushed and a perfect triangle with smooth sides unmarred by additional creases or scorings. In the carton shown, one of the corners is a right angle, so that the finger engaging this corner is at a right angle or perpendicular to the belt, while the finger engaging the other corner having the glued ends isat an angle less than a right angle to the belt. In the travel of the belt, the perpendicular end is in advance, which facilitates removal of the cartons as sho-wn in Figure 5.

The cartons travel to the right as seen in Figure l and are taken mi the belt at the right hand side of the machine just after passing over the pulley. By this time, the glue of the cartons has suiiiciently dried to maintain the carton formations and shapes. The ejection of the cartons may be by a stop 33 which is shown carried on abracket 34 secured and attached to the frame members 10. The stop projects in the path of the cartons and as shown in Figure 5, forces them out of engagement with the angular ends 31 permitting the cartons to fall. The Cartons may be guided by the curved portion 35 of the bracket 34 int-oa chute or other repository therefor which may be provided beneath the guide 35.

A modification of the invention is shown in Figures 6 and 7 which differs from the former in all practical purposes only in that the belt passes over pulleys having vertical shafts. fn this case, the belt is arranged in a horizontal plane and the fingers exert sufficient grip upon the cartons to hold them horizontally. The motor unit 25a in this modification is supported between the frame members 10a and drives a sprocket 24a which connects thru a chain 23a to the sprocket 22a, the latter driving, thru bevel gears 36, the shaft of the pulley. The stops or carton ejecting means are herein shown at 33:L and, of course, differ somewhat in construction from the former design. Otherwise, the modification is similar to the former and is provided with legs 11' and braces l22L for supporting the appa ratus.

lVhile the specific constructions shown are preferred, it will be understood that varia tions and alterations may be made therein in the practice of the invention and without departing from the scope thereof or of the ap pended claims.

ltfhat I claim is l. A machine for gluing triangular cartons formed from sheet material with three creases only and with one end of the sheetterminating at corner and the other end folded beneath the first end and glued thereto, comprising retaining fingers between which two corners of a. carton are gripped, one of said corners being the corner of thev glued ends of the sheet material, said fingers acting to lightly urge the glued ends together while firmly retaining the carton therebetween without crushing.

2. A. machine for gluing triangular cartons formed from sheet material with three creases only and with one end of the sheet terminating at a corner and the 4other end folded beneath the first end and glued thereto, comprising a sheet metal member. with up-turned ends forming resilient fingers betweenwhich two corners of a `carton are gripped, one of said corners bein the corner of the glued ends of the sheet material, said fingers acting to lightly urge the glued ends together while firmly retaining the carton therebetween without crushing.

3. A machine for gluing triangular cartons formed from sheet material with three creases only and with one end of the sheet terminating at a corner and the other end folded beneath the first end and glued thereto, comprising means forming fingers between which two corners of a carton are gripped, one of said corners being the corner of the glued ends ofthe sheet material, said fingers acting 'to lightly urge the glued ends together while firmly retaining the carton therebetween Without crushing, a belt on which the fingers are mounted, means for moving the belt, and

means for removing the cartons therefrom after a predetermined amount of travel.

4. A machine for gluing cartons formed from sheet material with one end of the sheet terminating at a corner and the other end folded beneath the first and glued thereto, comprising retaining lingers between Which two corners of a carton are gripped,oneof said corners being the corner of the glued ends of the sheet material, said fingers acting to lightly urge the glued ends together While firmly retaining the carton therebetween Without crushing.

5. A machine for gluing triangular cartons Jformed from sheet material With one end of the sheet terminating at a corner and the other end folded beneath the lirst and glued thereto, comprising means forming a pair of lingers between Which two corners of a carton are gripped, a belt on Which the lingers are carried, one of said lingers being perpendicular to the surface of the belt, and the other at an angle less than a right angle With respect thereto, the perpendicular end being in advance in the travel of the belt, means for moving the'belt, and means for removing the carton therefrom after a predetermined amount of travel.

6. A machine for gluing triangular cartons comprising a belt on Which is mounted a gripping means compri-sing a sheet metal member with ends up-turned to form resilient retaining lingers, one of said fingers forming a right angle with the central portion of said member and the other nger forming an acute angle with said central portion, means for moving the belt so that the perpendicular linger precedes the other finger, and means for removing the carton from said gripping means comprising a stop against Which the carton strikes.

7. A machine. for gluing triangular cartons comprising a belt on Which are mounted a plurality of gripping means comprising sheet metal members With ends up-turned to form resilient retaining fingers, one of said fingers forming a right angle with the central portion of said member and the other finger forming an acute angle With said central portion, means for moving the belt so that the perpendicular linger of each member precedes the other finger, and means for removing the cartons from said gripping means comprising a stop against Which the carton strikes.

8. A machine for gluing triangular cartons comprising a belt on Which are mounted a plurality of gripping means comprising sheet metal members with ends up-turned to form retaining lingers, one of said fingers forming a right angle with the central por tion of said member and the other finger forming an acute angle With said central portion, means for moving the belt so that the perpendicular finger of each? memberl precedes: the other finger, Vandi-means for removing: theA cartons froml said gripping means comprising' astopi against` which the carton strikes.` A

9a A machine: for gluing triangular'cartons; comprising a belt, pairs*` of resilient retaining lingers proj ectingfrom said belt, one

of said fingers in eaclrpair being substantially perpendicular to said belt and; the other at such. an angie that it firmly presses the carton against the belt and against said perpendicular linger Without distorting the car-` tially perpendicular tofsaidr belt and the other at such an angle that'it lirmly presses the carton against the bel-t and against said perpendicular finger Without distorting the car ton,I mea-ns for moving the belt so that the perpendicular finger of each pair precedes the otherfinger, and: means for removing the carton'VV from, sa'idr gripping means comprising a Vstop against which the'carton strikes- V 11.; A machine for gluingtriangular cartons comprising a belt, pairs of retaining lingers projecting from said belt,'one of said fingersin each pair being substantially perpendicular to said belt and the other at such an angle thatV it firmly presses the carton against the belt andv against sai-d perpendicular linger Without distorting the carton, means for moving the belt, and means for removing the carton from said gripping means comprising a stop against Which the carton strikes.

l2. A machine'for gluing triangular cartons comprising a belt, pairs of resilient retaining lingers projecting from said belt, one

of said fingers in each pair being substantially perpendicular to said belt and the other at such an angle that it firmly presses the car-- ton against the belt and Vagainst said perpendicular finger Without distorting the carton, means for moving the belt, and means for removing the carton fromV said gripping means.

13. A machine for gluing triangular cartons comprising a belt on Which are mounted a plurality of gripping means comprising sheet metal members with ends upturned to form resilient retaining fingers, one of said fingers forming a right angle With the central portion of said member and the other nger forming an acute angle With said central portion, means for moving the belt so that the perpendicular finger of each member precedes the other linger, .and means for removing the cartons from said gripping means.

14. A machine for gluing triangular cartons comprising a belt on which are mounted a plurality of gripping means comprising sheet metal members with ends up-turned to form resilient retaining ingers, one of said lingers forming a right angle with the central portion of said member and the other finger forming an acute angle with said central portion, means for moving the belt, and means for removing the cartons from said gripping means comprising a stop against which the cartons strike.

15. In a machine for gluing triangular cartons a sheet metal member with up-turned ends forming resilient retaining lingers between which the carton is gripped, one of said lingers forming a right angle with the central portion of said member and the other forming an acute angle with the central portion of said member.

16. In a machine for gluing triangular cartons a sheet metal member with 11p-turned ends forming resilient retaining fingers between whioh the carton is gripped, said re taining fingers forming such angles with the central portion of said member that they retain the carton in the desired shape.

17. A machine for gluing cartons comprising a belt, retaining fingers projecting from said belt, means for moving said belt, and means for removing the cartons from said lingers comprising a stop against which the carton strikes.

In testimony whereof, I have signed my name to this specification this 21 day of August, 1928.

CHARLES G. G. SCHMIDT.