US1445940A - Machine for making set-up boxes - Google Patents

Description

Feb. 20, 1923. 1,445,940 H. J. G055 MACHINE FOR MAKING SET-UP BOXES Filed Nov. '7, 1921 5 sheetssheet 1 INVENTOR ATTORNEY Feb. 2 0, 1

H. J. GOSS v MACHINE FOR MAKING SET-UP BOXES 3 sheets-S 2 Filed Nov- ATTORNEY Feb. 20, 1923. 1,445,940 H. J. GOSS MACHINE FOR MAKING SET-UP BOXES Filed Nov. '7, 1921 5 sheets-sheet 5 ENVENTOR ATTORNEY Patented Feb. 20, 1923.

UNITED s A r" PATENrfoFF-lcE.

HAROLD J. GOSS, 0E NASHUA, NEW HAMPSHIRE, ASSIGNOR To THE rNTERNATIoNAL PAPER Box MACHINE COMPANY, or NASHUA, NEW PsHIR A CORPORATION OF NE.

' MACHINE FOR MAKING SET-UP BOXES.

- Application filed November 7, 1921. Serial No. 513,275.

State of New Hampshire, have invented certain new-and useful. Improvements in Machines for MakingSet-Up Boxes, of which the following is a specification.

This invention relates to the manufacture of paper board boxes and has particular reference to machines for making rectangular boxes in set up form, ready to have goods placed therein. The boxes made by this machine are referre reason that, when made, they present upright side portions which serve as walls to retain goods.

The object of the invention is to provide an improved machine which is rapid and automatic in operation, the blanks belng fed singly and successively to the machme,

folded therein, and delivered therefrom in firmly set-up condition.

l/Vith this object in view the invention conas hereinafter described similar reference characters indicate similar parts in all of the views:

Figure 1 is'a plan view of the machine. Figure 2 representsa section on.l1ne 22 of Figure 1.

Figure 3 is a detail view on a larger scale looking inthe direction of arrow 3 in Figure 2.

Figure 4 represents a section on llne 4--4 of Figure 3, on.a still larger scale.

Figure 5 is a detail sectional view hereinafter referred to.

Figure 6 is a detail plan view illustrating how each blank is stopped and registered in position for the plunger to operate on it. 1

F igure 7 is a detail sectional elevation looking in the direction of arrow 7, Figure 6. p

Figure 8 is a perspective view of a box made by the machine, partially broken out blanks. p

Similar reference characters indicate simito more clearly show the folds.

Figure 9 is a plan view of'oneof the flat lar parts in all of the views. v A suitable framework of the machine comprises side members 12 and tie rods some c d (Z which latter when the box to as .wall boxes for the erate upon blanks substantially of the shape shown in Figure 9, to make boxes illustrated by Figure 8. Each blank comprises a central portion a,.wa1l portions b b, and flaps form its end walls. I

From a suitable table, not shown, the blanks are fed singly and successively by a pair of friction feed wheels 14 carried by a shaft 15. Below the feed wheels and cooperating with them are rolls 16 carried by a shaft 14, the two shafts 15, 17, having suitable intermeshing gears the upper one of which is indicated at 18 in F igure. 1. I

Each blank fed passes onto a platform comprising horizontal stationary strips 19 (Fig. 1),-lateral portions of the blank passis completed,

ing into andthrough restricted throats or guideways existing between two pairs of .upper and lowervertical strips 20, 21, (Figs.

' l and 2). sists in the construction and combination of Two endless chains 22 having spaced lugs. 23 are mounted on sprockets. carried by shaft"17,=a forward shaft 24, and a lower shaft 25, the latter being mounted'in arms 26 supported by one of the tie rods 13. The

sprocketson shaft 24 run loosely thereon. .As soon as-the rear edge of a blank passes from between the wheels or rolls 14, 16, so

as to be no longer advanced thereb the I friction between the blank and the strips 19,

20, 21, causes it to stop until its rear edge is engaged by a pair of lugs 23 of the chains 22 the upper stretches of which travel in a plane slightly below the plane of the guideways between the strips 20,21. The blank is not only squared up by the pair of lugs, but is positively advanced thereby. This positive feed, in connection with the restricted ornarrow guideways, is important because of the resistance ofiered'by the flap deflectors or breakers presently described.

Since glue must not be deposited on all the flaps c and (Z, means are provided-to cause them to shift to diflerent relative planes of travel. As soon as the blank starts to m'oveofi' from the platform strips 19 its two middle flaps c, c which are longer than the corner flaps d d ride onto inclined deflectors 27 supported by rods 28 projecting from the strips 21. These deflectors are lat- Y clined that (the flaps a passing above them as described) the flaps d, d will first pass under their higher outer-ends and then be bent or broken down to substantially vertical positions alongside of the outer sur-- faces of the strips '21. The lower inner ends of the rods 29 guide the flaps d, 'd, in vertical positions into narrow passageways between the outer faces of the strips 21 and the inner walls of two glue boxes 30, thereby ensuring complete breaking of said flaps on their crease lines.

As the longer flaps c 0 have only'been slightly deflected, they spring back to substantially horizontal positions after passing the deflectors, and said flaps ride over the tops of the glue boxes, thelatter having wide glue wheels 31 to apply a film of glue tothe under surface of each of the two flaps 0 0. To render it certain that the flaps c 0' will pass onto the glue boxes inclined guide fingers 32 project from said boxes. And to render it certain that said flaps will contact with the glue wheels, suitable up er rolls 33 are provided as indicated in igure 2. r

Each blank now, with its flaps d 0? broken down but usually inclined somewhat outwardly, and with its flaps 0 a standing out, passes between upper and lower belts 34, 35. By means of gearing not necessary to describe in detail the belts 34, 35, are speeded up to travel faster than thechains" 22, whereby the blanks are, drawn away from the chain lugs before the latter begin to move down around the sprockets of shaft 24. Said speed belts also act to increase the momentum of the blanks so as to aid in discharging them to position over the plunger hereinafter described. As illustrated in Figure 2, these belts are mounted and driven so that their contacting operative stretches first take each blank horizontally and then deliver it in a downwardly inclined direc-v tion above an upwardly movable Pllunger 36. One reason for this inclination is, as will be referred to again hereinafter, that upon the completion of the folding-of the blank to box form it automatically tips away in a. predetermined direction, which could not reliably occur if the movement was in a vertical direction. Another reason for the delivery of the blank in a downwardly in-'. clined direction is to cause it to automatocally gravitate to accurate position for fold-- ing, as will now be described. Each blank rapidly discharged by the belts 34, 35, slides down two inclined rods 37 (Figs. 2, 6 and 7), until the forward edges of the flaps 0 0 contact with} stops 38 carried by blocks 39 adjustably mounted on said rods. The upper ends of the rods are at a right angle and are clamped in blocks 40 having pins 41 secured in blocks 42 laterally adjustable upon a shaft or tie rod 43. lit is to be understood that the lower pulley for the belt 35 rotates on said shaft or tie rod.

It is important that the blank shall be laterally registered in position. To this end outwardly flaring guides 44 are pro- Ivided, each having its pin 45 adjustably fitting a bearing in a block 39. Each blank,

as its flaps c app-roach the stops 38, is guided to correct lateral position by the extreme edges of the flaps 0 contacting with the inner faces of the two flaring guides 44.

After a blank has been stopped in registered position it is lifted by the plunger 36.

(Fig. 2) the shank or red 46 of which is A mounted to reciprocate in bearings 47 supported by tie rods 48. A link 49 is connected at one end to the rod 46 and at the other end to a lever arm 50 pivotally mounted on a tie rod 51 and having a shorter arm 52 actuated by a cam (not necessary to illustrate) carried by shaft 53.

' When the plunger moves up, it engages the central portion of the blank and causes connected by webs or bars 57. The spacebetween these twoframes forms the chamher in which the box is compressed endw'ise after the blank has been folded toapproxi-f mate form. This folding is effected byfront and rear curved fingers 58 and side or end curved fingers 59. When the blank is pushed up, bottom first, by the rising plunger 36, the wall portions 5 b of the blank ride against the front and rear fingers 58 and are held back so that they swing down on their crease lines. Since the flaps 03 (Z of said portions 6 b have been already broken down, as previously described, this downward swinging of the portions 5 5 causes the flaps a? d to move in under the unbroken middle flaps '0, which flaps 0 carry glue. on their under surfaces. Continued flap 0 is by and depend froma bar 60 Figs. 2 and 4.

links 64 are pivotally shaft 70. A "spring The two bars are adjustable toward and from each other to suit different sizes of boxes to be made. It is to be understood of course that the plunger 36 is removably connected with its rod 46 to permit the substitution of one of different size or shape therefor. The bars 60 are mounted in brackets mounted on the tie rods 54, 55, and are adjustable relatively to the center of the forming space by screws 61.

The fingers of each series59 are carried by and depend from a the inner end of a slide 63 (Figs. 3 and 4) mounted to reciprocate in a bar 57. Toggle connected at one end to the slide 63 and at the other end to a bracket 65 rigidly connected with the outer bar 57. Mounted on the center pivot of the.

toggle links is a block 66 havin a pin 67 extending into a block 68 pivotal y mounted in the forked end of an arm 69 of a rock 71 surrounding the pin 67 and confined between the blocks 66, 68, causes the arm 69 to actuate the toggle yieldingly. As shown in Figures 1 and. 3 there are two of the tog 4 scribed so that, when the rock shaft is actuated, the two plates 62 are caused to press yieldingly on the overlapped flaps of the box, which flaps are then backed by the end walls of the plunger,v the result of which is to secure firm adherence of the entire gummed areas of said flaps. A rock shaft has an arm 72 at one end (Fig. 1,-2 and 3) said arm having a link 73 pivoted to it, the other end 'of the link being actuated by a suitable cam carried by the shaft 53.

After the blank has been folded over-the plunger as described, the pressing plates move apart and the plunger moves down. But the completed box does not move down with the plun r. It is stripped therefrom in the sense t at it is temporarily held .in the location where it was formed while the plunger descends out of it. This effect is obtained by a air of spring-pressed latches or pawls 74 igs. 4 and 5); Each awl 74 is pivoted at75 to-a block 76 mounted on one. of the bars 60, projecting upwardly and backed'by "a spring 77. The two pawls yield.- when the plunger moves up, with a blank mounted. thereom and the upper ends or tips; of the pawls are at a height to snap under the lower edge of I one of'the portions 6 of thefolded blank the plunger returns to lower position thebox is retained loosely, by the pawls, in the. upper portion of the chamber or spa'cein;

before the plunger moves down; Then when which it was formed.

When theplunger rises with another blank plate 62 carried by.

strips. stationary gle mechanisms just de-v ad ustably' the latter dislodgesf the formed box from its loose inclined posi-- fall over tion so that said formed box will the rod 55 into any suitable receptacle or onto, any suitable belt carrier not necessary to illustrate.

As indicated in Figure 4, the plunger 36 has grooves 78 in its side face to enable it to pass the strippers 74 on its reurn, without catching upon them.

In order that each box may be temporarily held under sufficient endwise pressure to ensure the setting of the glue, I may providev pressure devices such as indicated 1n spring strips 79 carried by upwardlyexported by two of the Figure 4, consisting of a pair of flat .of is unnecessary. It is sufficient to explain that;', r 1

When the machine is operated, blanks are successively delivered upon the platform Each blank so delivered remains until its rear edge is engaged by a pair of chain lugs 23' and carried forward thereby. The friction between the blank and said platform, aided by the friction on the blanks caused bythe narrow guideways or throats between to so hold the blank back against the chain lugs which are pushing it that the blank is advanced past the flap deflectors and breakers and gluers in accurate squared up position and so reaches the gripping and carrying belts 34, 35. During this portion of the travel of the blank, the rods 29 not only break down the corner flaps d, a, while the intermediate flaps 0 remain in outwardly extending positions or planes and receive glue, but said rods 29 also ensure such action on the corner flaps that they will pass along hanging down and ready to swing inside of the flaps c as soon as-the portions the strips 20, 21, tends b b are (later) bent down when the plum-- ger rises. i 7 p Each blank, with its cornerflaps hanging down and its flaps a standing out is rapidly delivered or shot by-the Speed belts 34, of the'plunger, and'down against the stops lateral position, is guided tothat position by the sldeguide's 44. I As- "the'operation" of the plunger, coacting described, further. reference thereto is unnecewary- Having now described myv invention, I claim: 4

A box -making instrumentalities and means folensuring delivery of blanks thereto in squared up po- 38 .and,,if not in accurate.

with the folding fingers 58, 59, has. been machine'having folding I I sitions, said means comprising a stationary platform for frictionally detaining blanks singly thereon and endless lug carriers for removing the blanks from said platform and forwarding them to be folded.

2. A box-making machine having folding instrumentalities and means for ensuring delivery of blanks thereto in squared-up positions, said means comprising a plurality of laterally spaced stationary strips for frictionally detaining blanks singly thereon, and endless chains having lugs to successively engage blanks on said strips and forward them to be folded.

3. A box-making machine having folding instrumentalities and means for ensuring de-- livery of blanks thereto in squared-up positions, said means comprising a stationary platform for frictionally detaining blanks singly thereon and endless lug carriers for removing the blanks from said platform and forwarding them .to be folded, narrow throats or guideways being provided for laterally projecting portions of the blanks.

4. A machine for making wall boxes, comprising a guideway formed to direct ablank having flaps with the flaps projecting laterally from the guideway, means for advancing the blank along said guideway, means-for deflecting the flaps into difierent paths of travel, means for applying glue to two oppositely projecting flaps, and means for folding the blank with its flap in overlapping relationship.

5. A machine for making wall boxes from blanks having corner flaps and intermediate flaps, comprising means for causing said blanks to travel, means for bending the corner flaps down while travelling, means for applying glue to the intermediate flaps while extending outwardly, and means for folding the blanks with said flaps in overlapping relationship.

6. A machine for making wall boxes from blanks having corner flaps and intermediate flaps, comprising means for causing said blanks to travel, a pair of gluers, means for directing the intermediate flaps over the gluers, means for breaking the corner flaps down and directingthem inside the inner walls of the gluers, and means for folding the blanks with theircorner flaps inside the intermediate flaps. 1

7. A machine of the characterdescribed, having two guideways for flat blanks, each of said guideways comprising straight upper and lower members in closely spaced relationship, means for advancing blanks along said guideways' with flap portions rojecting therefrom, and means for brea 'ng some of the flaps and applying glue to other fiapswhile the blanks are travelling along the guideways.

8. A .machine of the character described,

having means for causing blanks tortravel, means for causing flaps of the blanks to be broken and other flaps to receive glue while traveling, upper and lower fastertravelling belts for receiving the blanks after said action upon flaps thereof, and folding instrumentalities to which the blanks are delivered by said belts.

9. A machine of the character described having chains provided with lugs for causing blanks to travel, means for breaking some of the blank flaps and gluing others while traveling, upper and lower belts travelling faster than the chains for taking the blanks therefrom, and folding instrumentalities to which the blanks are delivered by said belts.

10. A machine of the character described having folding instrumentalities including a plunger, stop devices for determining the position of a blank relatively to the plunger, belts for forcibly discharging a blank against said stop devices, and means for delivering a blank to said belts with its flap portions in condition for treatment by the said. folding instrumentalities.

11. Ina. machine of the character described, an upwardly movable plunger, downwardly extending stationary fingers at two opposite sides of the path of movement of the plunger, pressers movable toward and from the plunger at the other two sides of its path of movement, downwardly extend ing fingers carried by said pressers, and

means for deliveringfoldable blanks above the plunger while the latter is in lower poscribed, an upwardly movable plunger,

means for delivering a foldable blank above v the plunger while it is down, downwardly extending stationary fingers spaced to coperate with two opposite faces of the plunger to fold portions of a blank when the plunger moves up, pressin platesspaced to cooperate with two other aces of the-plunger, means for moving said plates. toward the plunger when itis up, and downwardly extending fingers carried by said plates.

13. In a machine of the character described, an upwardly movable plunger, means for supporting a blank above the plunger, means including side pressers having downwardly extending fingers for coperating with the plunger to effect folding of the blank, means for delivering blanks singly-and successively onto said supports, and stop devices for registering the position of each blank on the supports.

14. In a machine of the character described, a plunger movable in an upwardly inclined direction, a pair of inclined rods to support a blank to be lifted therefrom by the plunger, means for folding portions of the blank against the sides of the plunger when the latter moves up, and stop devices adjustably mounted on said rods.

15. In a machine of the character described, a plunger movable in an upwardly inclined direction, a pair of inclined rods to support a blank to be lifted therefrom by the plunger, means for folding portions of the blank against the sides of the plunger 10 when the latter moves up, means for delivering a blank edgewise onto said rods stops carried by said rodsfor arresting the front edge of the blank, and guides carried by the rods to laterally register the blanks;

In testimony whereof I have aflixed my 15 signature.

HAROLD J. GOSS. Witnesses:

HAZEL M. JEWELL, EMMA A. GRAVES.

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