US948710A - Machine for making flexible boxes. - Google Patents

Description

B. G. STAUDE.

MACHINE FOR MAKING FLEXIBLE BOXES.

APPLICATION FILED H28. 13, 1903.

Patented Feb. 8, 1910.

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MACHINE FOR MAKING FLEXIBLE BOXES.

urucumx nun mm 13, 1903 Patented Feb. 8, 1910. I 2 SHEETS8HEET 2.

6 10 iiarneya UNITED. STATES PATENT OFFICE.

EDWIN G. STAUDE, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO E. G. STAUDE MANUFACTURING COMPANY, A CORPORATION OF MINNESOTA.

MACHINE FOR MAKING FLEXIBLE BOXES.

Specification of Letters Patent.

Patented Feb. 8, 1910.

Application filed February 13, 1903. Serial No. 143,179.REIS

To all whom it may concern:

.Be it known that I, EDWIN G. STAUDE, of Minneapolis, county of Hennepin, State of Minnesota, have invented certain new and useful Improvements in Machines for Making Flexible Boxes, of which the following is a specification.

My invention relates to machines for making flexible boxes and particularly those designed for containing cereal foods.

The object of the invention is to improve the apparatus shown and described in certain Letters Patent of the United States issued to me on the 9th day of December, 1902, No. 715620.

The invention consists generally in providing means for separating the waste pieces that are cut out by the action of the knives from the finished blanks.

Further, the invention consists in improved means for holdin the blanks firmly upon a traveling belt uring the pasting and folding operation, and

Further, the invention consists in means for placing suitable printed matter upon the blanks, and

Further, the invention consists in various constructions and combinations, all as hereinafter described and particularly pointed out in the claims. In the accompanying drawings forming p'art of this specification: Figure 1 is a plan view of a box-making machine embodying my invention. Fig. 2 is a longitudinal section. Fig. 3 is a plan view of a portion of the discharge end of the machine, showing the mechanism for operatin the printing rolls and the devices for hol ing the blanks upon the belt at that point. Fig. 4 is a perspective showin the cutting rolls and the means employed for detaching the waste portion from the blanks.

In the drawings, 2 represents a suitable frame whereon a table 3 is arranged. Near the receiving end of said table, said frame is provided with standards 4, between which the cuttin and scoring rolls 5 are mounted. These rol s are provided on their peripheries with scoring or cutting knives 6 and groups of severing and transverse cutting or slitting kni es 7 and 8, that fit snugly within sockets in said peripheries, the severing knives extending lengthwise of the rolls, and the slitting knives substantially at right arm gles with the severing knives and conforming to the rounded surfaces of the rolls. These knives are substantially the same as those shown anddescrihed in my application, No. 134903, filed December 12th, 1902, which has eventuated in F'atent No. 837,853 dated Dec. 4:, 1906, and hence need no detailed illustration or description herein.

The cutting rolls in this machine are designed particularly for turning out blanks 9 having tongues 9 at the ends of the cartons that are adapted to enter slits 9" in the opposite flap and interlock to prevent accidental opening, and said rolls are therefore provided with irregularly shaped cutting knives 10 for forming the said tongues, and straight knives 10' for cutting the slits 9". The shaft of the lower roll is provided with a driven pulley 10", and both of said shafts have gears 11 that mesh with each other and are of the same size, to cause the rolls to be driven at the same peripheral vs eed. In front of the cutting rolls I provide a roll 12, mounted in hearings, in the frame of the machine and provided on its periphery with longitudinally arranged ribs 13 and with a transverse rib 14 and a raised irregular portion or projection 15 that corres onds m its outline to the shape of the knives 10. The roll 12 is driven from the shaft of the upper roll 5 by means of a sprocket chain 16, and has the same periph-- eral speed as said cutting rolls. I prefer to provide the roll 12 with two sets of the ribs 13 and 14 and the raised portion 15, and these parts are arranged to engage and press or push the waste pieces of the blanks out from between their abutting ends, as the blanks pass between the roll 12 and the table. Beneath the roll 12, I prefer to provide a slot 17 in the table through which the said waste pieces are discharged. In this machine the roll 12 will pass over two blanks with each revolution, but it may be arranged, of course, in the manufacture of longer cartons, to pass over but one blank, and in that event it would be provided with but one set of the ribs and the raised portion. At each end of the table 3, I provide rolls 18 and 18', over which a belt 19 is adapted to travel, its

upper half resting upon the surface of thetable. The roll 18 is driven from the shaft of the roll 12 by a gear 20. A gear '21 is sccured on the shaft of the roll 18 and meshes with a similar gear 22 on a shaft 23 that is mounted in hearings on the table near its revolving end. All these parts operate at the same speed, so that the blanks will pass through the machine at a uniform speed, and the maximum capacity of the machine can be maintained. 7

A frame 24 is mounted on the shaft 23 and carries a series of idle wheels 25 that are arranged to bear upon the surface of the blanks, and upon each side of said frame on said shaft, I arrange wheels 26 secured thereon and adapted to bear upon the blanks near the edge of the traveling belt, to pre= vent any possibility of the blanks curling up as they leave the rolls. I also prefer to provide idle wheels 27 in advance and in line with the wheels 2". The idle wheels on each side of the frame are driven by means of belts 28, which connect them with the wheels '26. The forward end of the frame is provided with a pivoted arm 29- mounted on a shaft 30, on. the. ends of which the idle wheels :25, at that oint, are supported, and said shaftis provi ed with a wheel 31 over which a belt 32 asses to a Series of idle wheels 33, mounted on the arm 29 and gradually decreasing in size toward its free end. The forward end of the arm 29 is provided with several idle wheels 3%. The weight of 35 the frame and arm and the wheels carried thereby, will hold the blanks down upon the belt with a yielding pressure and prevent their slipping while the edges are being folded. I prefer to taper the arm 29 and provide idle wheels thereon that gradually decrease in diameter toward the free end of the arm, so that, as the edges of the blanks are folded over the middle portions thereof, and during such folding operation are carried along by the belt, the wheels bearing on the middle portions of the blanks.

will extend beneath the folded portions and not interfere with the action of the folder arms 35. As in my patent above referred to, I prefer to extend the pivoted arm to a pointoppositeto the termination of the inwardly turned portion of the folders. so that. during the folding operation, the blanks will be vieldingl v held on the traveling belt. and the weight of the arm and the wheels carried thereby, will be sntiicicnt to prevent any danger-of slippin s ,f

llpon the tablcf near the dtsclmrg'e end of the machine, I provide a shaft 36. whcreon wheels 37 and 38 are secured. the former beon the shaft 41 of the adjacent roll l3. T he wheels 38 engage the box blank after it leaves the folders 35 and serve to complete mg connected bv a belt 39 with a pulley' -lfl the folding operation. A frame 42 ismouuted on the shaft 36 and is provided with a series of idle wheels l l. connected b lit-its l-l with the wheels 38. and said belt also pass over smaller idle wheels 45, provided at the forward end of said frame and below the level of the wheels 43. Rolls 46 and 4?, having printing type on their peripheries, are supported in bearings at the discharge end of the machine in a suitable frat-1e 4S. and are arranged to receive the ends of the blanks as the) are discharged from between the traveling belt and the idle wheels The roll 46 is driven by a chain 49 from the shaft 41, and a gear 50 is provided or. the shaft of the roll 46 meshing with a similar gear on the adjacent printing roll, and above he printing roll '47 are ink rolls 51 and 52, the latter being in engagement with the surface of the roll 47 and driven therebv. is an ink reservoir provided near the roll 52. A similar inking mechanism is provided near the roll 46. Beneath the discharge end of the machine is a transverse shaft 5% driven by a belt 55 from the shaft of the roll 18',

.and beveled gears 56 are provided on the said shaft 5- meshing with similar gears 57 on the shaft 58, whereon spirals 59 are arranged. These spirals are above a trough (l0, and the blanks discharged from between the printing rolls pass between the spirals and are advanced thereby into the trough,

and packed, one against another, in an up-.

right position. Any suitable matter may be provided on the printing rolls, according to the size and shape of the carton, it being essential, however, to regulate the speed of the same according to that of the belt and the other mechanism of the machine, so that the printing on the blanks will be uniform and regular.

The following is a brief description of the operation of my machine: The machine having been set in motion. the roll of paper is fed to the cutting and scoring rolls in the usual manner, and as the paper passes l)8- tween the rolls, the cotiperation of the knives thereon. will slit and sever the blanks. as shown in Fig. 4. The knives will cut the stock to form the tongues in the ends of the flaps and also the slits, to receive said tongues when the ends of the.cartons are closed. The waste strip between the blanks will be engaged and pressed through the slot 17 by the action of the roll 12. and the blanks passing from between said roll and the table, will be engaged by the wheels '26 and the endless belt and carried along toward the folilersz' After being thus folded. the blanks will be engaged by the wheels 33 to complete the folding o )eration and after passing through the printing rolls, will be delivered to the spiral-conveyers and packed in the trough (lgi' The machine is extremely simple of constrnction. quick in operation, and will turn out blanks that are uniform and regular, even when driven at a high rate of speed.

I claim as my invention:

1. In a machine having cutting and scoring rolls, the combination, with a suitable frame, of a table, a shaft near said rolls above said table, and means for driving the same, wheels secured on said shaft, a frame hinged on said shaft, a series of idle wheels carried by said frame, and belts passing over said shaft wheels and said idle wheels, substantially as described.

2. In a machine having cutting and scoring rolls, the combination of a table, a revolving shaft mounted thereon, wheels secured on said shaft between which and said table the blanks pass from said rolls, a frame hinged on said shaft between said wheels,

-idle wheels carried by said frame, belts connecting said idle wheels and said shaft wheels, an arm pivoted on said frame, and a series of idle wheels carried by said arm.

3. In a machine having cutting and scoring rolls, the combination of a table, an endless belt operating over the same, revolvin shaft wheels secured thereon, a frame hinged on said shaft, idle wheels carried by said frame and adapted to bear upon said belt, and belts connecting said idle wheels and said shaft wheels.

4. In a machine having cutting and scoring rolls, the combination of a table, an endless belt operating over the same, revolving shaft wheels 26 secured. thereon, a frame hinged on said shaft between said wheels, idle wheels mounted in said frame, belts connecting said idle wheels and said wheels 26, and idle wheels 27 mounted on said shaft and said frame and adapted to bear upon said belt near the edges thereof, substantially as described.

5. In a machine having cutting and scoring rolls, the combination of a table, an endless belt operating over the same, a revolving shaft, a frame hinged thereon, idle wheels carried by said frame and adapted to bear upon said belt, an arm hinged on said frame, idle wheels carried by said arm, and folder arms provided on said table upon each side of said frame.

. 6. In a machine having cutting and scormg rolls, the combination of a table, a belt operating over the same, a frame hinged a ove said table, idle wheels carried by said frame and adapted to bear upon said belt, an arm pivoted upon said frame, idle wheels carried by said frame and arran ed to bear upon said belt near the middle t ereof, and

said wheels gradually decreasing in size toward the discharge end of said table.

7. In a box-making machine having a table and an endless belt operating over the same, a frame hinged above said belt near the discharge end of saidtable, and having its free end toward the discharge end of the table, a series of id le wheels carried by said frame, and belts connecting said wheels.

8. The combination, with a table, of an endless belt operating over the same, a revolving shaftprovidod near the discharge end of said table, wheels secured on said shaft, a frame hinged on said shaft, idle wheels carried by said frame, and belts connecting said idle wheels and said shaft wheels, substantially as described.

9. In a box making machine having a table, an endless belt operating over the table, means for folding a box blank and printing rolls located at the discharge end of said table and below the top thereof; gripping means located above said table and printing rolls at the discharge end thereof and having an overhanging part beyond the end of the table to direct a blank from the belt downwardly to the printing rolls, substantially as described.

10. In a box making machine having a table, an endless belt operating over the table, means for folding a box blank and printing rolls located at the discharge end of the table and below the top thereof; a frame above the discharge end of the table, and above the printing rolls anda series of idle wheels mounted in said frame and cooperating with the belt to deliver blanks from the table to the printing rolls.

11. The combination with means for folding a box blank, of means for printing on the folded blank, means for ho ding down the folded portions of the box blank while the latter is passing to the printing means, and means for delivering the blanks from said printing means to a receptacle.

12. In a box-making machine having a feed belt, and means for folding a box blank thereon; rinting rolls located at the end of said feed belt, and means located above said belt for gripping the blanks and delivering them to said printing rolls, substantially as described.

13. The combination, with a suitable frame, of a belt mounted therein, a table over which said belt operates, folding devices arranged to engage blanks on said belt, means for pressing the edges of the blank together, and printin rolls to receive the blanks from said belt and said pressing means.

14. In a box making machine, an endless carrier for conveying blanks while being folded, means above said carrier for partially folding a blank, and positively driven folding wheels situated above said carrier and at the discharge end of said f lding means for engagin said blank to complete its fold, substantially as described.

15. In a pa er-box making machine, the arranged to be brought into register there- 10 combination with scoring and severing rolls, with and with the opening in the table, snbof a table to receive the blank from said 1 stantially as described. rolls, said table having an opening therein In Witness .vhereof, I have hereunto set adjacent to said rolls, for the discharge of E niyhand, this 3d day of February, 1903. the severed portion of the blank, and a roll EIHVIN G. STAUDE. above the table, said r011 provided with g1 In presence of-- raised portion corresponding to the out por- RICHARD PAUL, tion of the blank which is to be removed and E S. V. GRIFFIN.

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