US1608693A - Box-making machine - Google Patents

Description

Nov. 30 1926.

C. BURNHAM BOX MAKING MACHINE Filed Nov. 18, 1925 4 Sheets-Sheet 1 m W n m 1 MN m a r1 IFII al@ y. m N Hm. Saw.. mw m NN Sw Q L. Nm Nw O J 1%" Y- m i N u o o :QN h NN NQ ,mw .Nm um m u wn wnm A L NSN wm !\1 m N.W\ @lq .IH IIHHIIHHUHIIII: Mq hu Il L@ N .D .lll l I l I l I l I I l I I l l l l l l Il NK x l QH NNW@ QQN Nov. 30 1926.

C. BURNHAM BOX MAKING MACHINE 4 Sheets-Sheet 2 IH/venten led Nov. 1 8, 1925 abboz nur Nov. 30 1926.

C. BURNHAM BOX MAKING MACHINE Filed Nov. l8 1925 4 Sheets-Sheet 5 Nov. 30 1926.

C. BURNHAM BOXMAKING MACHINE Filed Nov. 18I 1925 4 Sheets-Sheet 4 S11/munten i* @i Q ri @manege Patented Nov. 3G, 1926.

CHARLES BURNHAM, F VASLINGTON,

BOX-MAKING MltC-IINE.

application ined November is, reas.

rlhis invention has relation to that type of machine covered by former patents of mine; for example, Patents 1,119,340, De-

cember 1, 1914, and 1,252,546, January 8,

1918. The present invention has to do with the removal 'from the machine ot the completed box, and the object is, lirst, to priovide an improved ejectingdevice adapted to lift the completed boxes out oit the carlu rier turret and deliver them to a horizontal nesting-conveyor; secondly, to count the boxes by separating' them into batches ot say one hundred each; and, thirdly, to automatically deliver these separated batches of a predetermined number of bones into a drying apparatus where they are dried and seasoned and then delivered in separate batches, as more fully hereinafter set forth.

In the drawings- Fig. 1 is a plan view of my improved apparatus;

Fig. 1"t is a plan view of the nesting; part of the conveyor;

Fig. 1b is an enlarged plan of some details of the nesting part ot the conveyor;

Fig. 2 is a side elevation ot my improved apparatus Fig. 3 is `an end elevation of a part of the counting mechanism;

4 is a vertical sectional view taken through the conveyor at a point adjacent the drier;

Fig. 4a is a perspective view of the pusher mechanism;

Fig. 5 is an enlarged side elevation partly in section;

Fig. 6 is another transverse section taken through the conveyor, looking toward the ejector mechanism; Y

Fig. 7 is an end elevati-on ot the ejector mechanism v Fig. 8 is a view partly in plan and partly of a detail in cross-section oi a part of the ejectorV m chanism;

9 is a side elevation of the ejector mechanism.

Referring to the drawings annexed by reference-characters, 10 designates the tur ret-like carrier in which the boxes loosely rest after they are made by the mechanism illustrated in my aforesaid Patent No. 1,119,340, numeralll designating one of the completed boxes. 1

The turret carrier is intermittently ro- Serial No. 69.835.

tated, and at each dwell ot the carrier the last-completed box is lifted upwardly out ot' the carrier and carried laterally and delivered to a conveyor' by which the boxes are nested. The box-engaging member is designated by the numeral 12, this member being provided with flanges which embrace the bottom of the boi; and thus form a seat ior the boi; which holds the box until it is delivered to the conveyor. This boxeeat 12 is pivotally supported on two pivots 13 and 14. The pivot 13 is supported on the end oit a lever 15 which is pivoted at 16 on the tree ends ot a pair oit goose-neck arms 1'?, the lower ends ot these ,goose-neck arms beingv pivotally mounted on the fname oit the machine at 18. The pivot 14 is supported in a pair ot lugs 19 depending fromthe bor;- seat 12. Pivotally connected to the pivot 14 a depending` rod 20 whose lower end is pivotally connected at 21 to one end ot a lever 22 pivotally mounted on a pivot 23 supported on the lower ends of the {rooseneclr arms 17, the other end of this arm 22 beine' provided with a roller 24 which works on the vface of a cam 25 stationarily affixed to the frame.

The free end ot the lever 15 is connected by a linlerod 26 to one end of a lever 27 pivotally mounted on the aforesaid pivot 23 and having` on its tree end a roller 28 which worlrs on the `face oi a cam 29 stationarily aiiixed to the trame alongside thD aforesaid cam 25. To tend to hold the boz-`-seat 12 normally in a horizontal position, ready to engage the bottom portion of the bof; when the box-seat is raised, I provide two coil contractile springs 30 and 31; spring: 30 connects the outer ends of the lungs 19 to the goose-neck arms at a connectinpfbolt 32, while the other spring 31 connects the outer end of lever 15 to a pin 33 carried by one of the atoresaid ygoose-neel; arms 17.

To intermittently rock the shaft 18 and thus actuate the ejector mechanism. I aiiizr to one end of the sha'tt 18 a toothed segment 34 and mesh therewith a companion segment 35 journalled `on a short shaft 36 mounted on the tram-e; and this latter segment is rocked through the i'nediui'n et a link-rod 37 which is vertically reciprocated by cam devices located at the base ot the machine, these devices in the present instance consisting ot a cam 3S carried by the main driveshaft 39 arranged to actuate an arm 40 affixed to a rock-shafted which carries another arm 42 pivotally Vconnected to the lower end of the link-rod 37. This mechanism is timed s0 that when the completed basket arrives over the basket-seat l2 and the turret "carri-er stops for an instant, the box-seat will be thrown upwardly and `to the right to thus deliver the completed box to the conveyor nest-ing devices hereinafter described. The object of the cams and 29'and theirassociated devices is to tilt lthe box-'seat =o r zholder 12 to a vertical position `by the timeyit arrives atthe receiving-'end of the conveyor mechanism, to thus yinsure .the boxes being delivered 'to the conveyor mechanism withtheir rims and bottomsin a vertical position, this verticalp'ositionbeing `.maintained during' the 'entire movement re- Lquired Yfor-deliveringv each box Linto the re- 'ceivingeend -o'f the conveyonthereby `insur- :ingproper nesting'of theboxes. The shape 4of the cams-25-and 29 gives to the rods 20, 26 the `essential l:differential movement re V quired forthus tilting-the box-seat -12,'fand, when the mechanism -isfreturned to restposition, the springs 30'and 3l 'normally're- Yturn the :box-seat to a horizontal position -beneaththe turret carrier.

Thei nesting conveyorf consists of a 'pair vof opposite'lyLarranged `belts 43 set vertically 'edgew-iseandleaeh runningover'a pair of `vertically-arranged rollers '44e fand 44. These' belts 43 are yarranged apartfa distance r v'slightlylessthan equal to the width ofthe boxes. *Their inner boxengaging faces-are driven vto Ithe right, e., aw-ay from rthe ejector members. Vertical side rollers rservefto assist in V'sustaining Aand guiding the belts. VThe belts are simultaneously, inter- 'mittently vdriven Aby 'the following- =mecha nism: "The vertical shafts i5 Aof the two `outermost rollers liiare providedon their lower vends 'respectively with a bevel-'gear 546. vThese 4two I bevelegears mesh with companion gears 'fi-7 afiixed to a horiZontal'sh-aft 43. At one "'end,thisshaft 43 is' provided Awith smallvgear Li91which meshes with a llargefgear afliixed to the adja-cent'end of fa I parallel "shaft 5l. The I ether' endof the 'shaft 5l `isaiiixed to ratchet-wheelf52,fand eladapted to lactuate 'fthis fratchet-w'l'ieel is a f-pawl 53 carried by a pair of arms 54 pivotally mounted on the aforesaid 'shaft l5l. These 'arms are `intermittently actuated, up and down, by means of a link-rQd '56 'which at its lower -end ispivotally connected to a linlrv57 carried 'by an eccentric strap'S 'embracing yanV eccentric "on the yaforesaid VmainV shaft 39. I

' -l/Vith the aforesaid mechanism,` it will lbe kobserved that `the nesting-belts 4&3 will receive an intermittentlfeed. `This feed will be "timed `so f that Y the massl of nested boxes V`held between the belts `will'be Afed .a distance vpawl 53.

'shaft .77.

of one box after each delivery of a box t0 the receiving-end of the belts.

From the reeeivingTandfnestmg-belts 4:3,

the nested boxes are delivered-onto a main Vnesting-belts they rest entirely Vupon l:the vconve-yor#belt 59. Side flanges `61 serve tto hold =the nested rboxes :upright t on the. :upper surface of the belt 59. For the purpose, however, .ofi separatinglthe `nested 4boxes :into batches having a :predetermined y'number of boxes, I provideaisupplemental feed device for the `main conveyor 59. This consists fof another `pair of -fpawlL'carrying farms' 62 -having a pawlf63 reversed with Yrespect toathe pawl 53, these farms 62 beingzactuated Vby "Jeans offa link-rodG' connectedito an:arm

65 attachedto a rockeshaftffo, which latter shaft is rocked fby anarm-Gattached v.to lsaid'shz-ft't and connectedfbyza/linkbSto a companion armA 69v aiiixedto av stubshaft L70,

this latter Larm 69 being` provided with Va roller 7l which is maintained in Contact with 'a 'cam 72 lby -ineans .of a cont .actile spring 73. As will be seen, the rotation-'of the' cam 72 intermittently 'reciprocates the link-rod G4 and thus imparts vto lthe 'main 'conveyor-59 an yintermittent feed in "addition to fthat vwhich it `receives .throughthe rThe cam 72 is affixed to a rotaryshaft 74: which has vaffixed toY it a large Agear 75 which meshes with a pinionxaiiixed 4:to a The shaft"77'carries:a large gear 78 which-'in-turnmeshes `with ia pinion 79 affixed to a. shaft 8O which is coupledztothe 'main ldrive-shaft 39. The lobjectloffthi-s reduction gearing -a-rrangementiis to limpart a slower'inovement 'to Athecam 72 '(wh-ich actuates the supplemental feed) thanthe'fec- 'centric -whichactuates the mainfeed, sothat `after a predetermined number df lnested boxes have been fed onto the'inainvv conveyor -59this 'conveyor -willbe given an addition al quick feed which results in separating lthe batch or mass of boxes that havevbeen de- Llivered't'o the 'conveyor 59 froinutheboxes have "been delivered vfrom the-se `belts rest lfreely and wholly `on `therconveyo; .59.

Therefore when Vthisrinain'conve'or 59 is `givenan 'extrawimpulse at a time'wheiiitlie nesting-belts are idle, this'jump or impulse will cause a separation between the mass of boxes'within'fthe` nesting-belts and-:thosethat are resting upon the main conveyor. This gap between succeeding batches of nested boxes divides the boxes oft1 into batches ot a predetermined number, Vsay one hundred in each. The separated batches ot boxes thus formed are delivered to the mechanism, hereinafter described, tor depositing thein separately into a drying mechanism. A `feature of importance in this manner ot nesting the boxes is that it lends itself nicely to 'properly spacing the boxes for drying purposes; that is to say, by properly adjusting and timing the feed of the nesting-belts a3, the last-deliveredbox will be carried tar enough away from the point of deposit ct the box to prevent the next-delivered box being jammed against it, leaving a slight space between the boxes for circulation of hot air in the drying apparatus.

The forward rollers 441 are mounted so as to virtually float, each roller being supported on a pair ot arms 81 extending toward the delivery-end ot the belts and each being pivotally connected to a bolt 82 at 83, the outer ends of these bolts being slidably extended through the respective upper and lower ends of a plate 84 bolted on the :trame of the machine, a nut 85 being provided on each bolt to limit the inward movement ot the bolt and a spring 8G being provided on each bolt to normally torce the arms 81 inwardly. Each pair ot arms 81 is connected by a plate 87 which lies between two plies of a belt and extends to near the rear roller'l-L, this plate being supported entirely on the arms 81 and these arms 81 being in turn entirely supported by the bolts 82. Each of the plates 87 is provided on its inner tace with a series of iiat springs 88 which press lightly against the inner tace ot the inner leg of the belt, these springs 88 together with the springs 86 serving to torce said inner leg of the belt inwardly for the purpose ot resiliently clamping the nested boxes as they travel, with the belt, inwardly. A supporting plate 89 is mounted between the belts Tith this mechanism, thc boxesare properly received and nested and maintained in separated condition unt-il they are deposited upon the main conveyor, slight variations in the dimensions of the boxes and wear in the ejector mechanis n being nicely taken care ot by the manner in which the belts are sup-` around by the cylinder 91 and finally delivered, after drying, to a point adjacent to the receiving-point, as shown in Fig. il.

The delivery ot the separate batches of boxes to the drier is accomplished by the following mechanism: A push-plate 98 is mounted upon a pair oit arms 9&1, and these arms are pivotally connected at 95 to the upper ends ot' arms 90 which are afiixed to a rock-shaft 97. Aliixed to the shat't 9T is an additional arm 98 which is provided 'with a roller 99 on its lower end and which runs upon a cani 100 affixed to the aforesaid shaft 74 which is extended so as to lie parallel with the main conveyor. A retractile spring 101 connects the arm 98 to a convenient part ot the :trame and serves to no1'- mally tend to pull down the arm 98, holding it against the operating tace of the cam 100. This cam 100 is so constructed that when a batch ot boxes reaches a point with reference to the drier so that they may be pushed into the adjacent pocket of the drier, the roller 99 drops oil'l the nose ot the cam and allows spring 101 to actuate the pusher mechanism and thus push the batch of boxes ofi the conveyor and into the drier. For the purpose of getting a straightline push of the batch ot boxes, I employ radius links 102 which are pivotally connected at the outer ends to the outer ends ot the arms 94 and at their lower y ends to a convenient point ot the trame.

In view of the fact that the shaft 74e is necessarily driven very slowly, the cam 100 cannot be relied upon to withdraw the pusher, since the pusher must be promptly withdrawn outwardly to a point outside of the main conveyor so as not to interfere with the next, oncoming hatch ot boxes. I therefore provide a special, quick withdrawing mechanism which consists, in the present instance, of a cam 103 atiixed to shaft Tl and adapted to engage a roller 1011 on the lower end ot an arm 105 pivotally mounted on the aforesaid roclshaift 97. `This roller 10iV is ltept pressed against the face ot the cani by means of a retractile soring 106 connected to a lateral extension 107 on said arm 105. The arm 105 is provided with a tappety 108 in position to strike against the adjacent end ot a set-screw 109 mounted on the arm 98. lThe cam 108 is so positioned with respect to the cam 100 that very quickly atter the pusher has operated, the roller 104e drops oil:1 the nose oit cani 108, `thus allowing spring 10G to come into operation. This spring quickly throws tappet 108 upwardly against the lower end ot a set-screw 109` thus rocking the shaft 97 through the medium ot the arms 98, thereby quickly withdrawing the pusher to its rest position. It will be observed that the springs 101 and 106 do all the worlr of pushing the batch of boxes into the drier and in withdrawing the pusher to rest position, the cams serving merely to tension the s )rines-and release the mechal s vmsm at proper times. y lt will ofcourse be understoodlthat it is within the spirit of my invention to deliver the batch ot Abaskets to any receiving` means other than a dryingiapparatus.

n order that one of the pockets 92 in the drier cylinder shall always be in position to Y receive the batch ot baskets when they are thrust in y'ardly by the pusher 93, it is necessary that the cylinder'be operated syn-V simple vway by a pairr ot long .pawls 110- which are actuated by cranks ill carried by the shaft 274. These pawisactnate the cylinder through-.the met-.inni .ot an annular series of pins 112 on each end of the cylin der and spaced apart distances equalto the width ot the pockets 92. The pawls are actuated to revolve the cylinder dui-ing the dwell in the operation oi the pusher mechanism. A spring 113 attached to each pawl holds the same in position aga-inst the pins, and each pawl is provided with a finger llel which prevents it being` pulled behind the pins, thereby holding the pawl's always in `position to engage the pins on their upward strokes. Y

ifvlhat l claim as new is:

'1. In a box-making machine, anl ejector mechanism embodying a box-engaging member adapted to engage the bottom portion of the boi; and litt the same out oi the carrier otthe boa-making appliances, and means for automatically moving-said box-engaging member upwardly and laterally, this mechanism embodyingl devices for tilting the boi:- engaging member during said movement to av vertical position and maintaining said verf' tical position during the delivery ot the box to the receivingl devices. Y

2. In a box-making machine, an ejector p mechanism embodying a box-seat and mechanism for raising' it into engagement with the box and carrying it laterally to the boxi'eceivin'g appliances, said mechanism embodying a rocking gooselneck arm pivotally supporting said box-seat, means wherebyV during the upward movement of the gooseneck arm the box-seat is tilted upwardly to vertical position and moved into the boi:-

-receiving appliances in that position.

Y S. In a box-making machine, an ejector mechanism embodying` a box-seat, gooseneck arm and means for actuating it, a lever lpivotallly supporting saidbox-seat on said gcoseeneck arm, cani-actuated means' tor i rocking saidlever, and cani-actuated means for simultaneoeusly tilting the boX-seat, for the purpose set forth.

el. In a box-making machine, an ejector vmechanism embodying a box-seat, a gooseneck arm andnieans for. actuating` it, a lever pivotally supporting said box-seat on said goose-neck arm, cani#actuatedV VmeansV for rocking said lever, and cam-actuated means for simultaneously tilting the box-seat, spring means .being provided for returning the parts'to normal position with the boi;- seat in horizontal position.

5. ln a box-making machine, anA ejector mechanism embodying a goose-.neck arm affixed to a. rock-shaft, a lever pivotedon said goosesneck arm, a box-seat pivoted on s= 'd lever, a pair oi" cams, a pair oit vlevers actuated by said cams, link rods connecting this latter pair otv levers respectively with the atoresaid lever and also with the boxseat, and springstor returiiingthe parts to normal position when the box-seat returns to rest position.

(i. ln a boxpmachine, a pair ot'opposing' nesting-belts 'for receiving the completed .boxes from the machine, a pair of rollers earring each belt,ineans for .tloatingly supporting the rollers at Vthe receiving-end ot the belts, means for intermittently driving the belts simultaneously, and spring means tending to press these rollers toward each other, forA the purpose set forth.

'i'. In a boay machine, a pair ot opposing .nesting-beltsv tor receiving' thecompleted boxes from the machine, a pair ot rollers carrying each belt, means for iioatingly supporting` the rollers at Vthe receiving-end of the belts, means tor intermittently driving the belts simultaneously and spring means tending to press these rollers toward each other, additional spring-actuated means being provided for pressing directlyagainst the inner opposing legs of the belts to torce the same toward each other.

S. in a box-making machine, a pair of opposing nestinf beltsV tor receiving the completed boxes. rollers for supporting these belts, means for intermittently driving these rollers to thereby actnate the belts, inwardly-moving members supporting' the rollers at the receivinneendsot the belts, adjustable springs means tor resi iently pressing these members inwardly, and a plate attached to each ot these members and extending rear- 'wardly parallel rto the inner leg ot the belt CHARLES BURNHAls/l.

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