USRE6745E - Improvement in paper-box machines - Google Patents

Description

Y, -4sh`keets-sheet1. H. R. HEYL & A. BRE-HME PAPER-Box MACHINE.

Ressued Nov. 16, 18 75.

FIGL

.. ...lll M r, Q lllmlllmlllumw a il 4Sheets-Sheet3- H. R. HEYL &. A. BREHMER.

PAPER-BOX MACHINE.

Ressued Nov. 15, 1875.

iNVENTOR f `4 sheets-sheet 4. H. P.. HEYLl & A. BREHMER.

PAPER-BOX MACHINE. NO.I5,7.45. Ressued Nov. 16, 1875.

y l Y',

' WITNESSES :e 6 |NVENTR6 gl! v Z1 'l2 lthe machine which forms the boxes.

UNITED I STATES l PATENT OFFICE., y

HENRY R. HEYL AND-AUGUST BeEHMER, 0F PHILADELPHIA, PENNsYn- VANIA, AssIGNoEs `To THE NOVELTY PAPER-Box coMrANY.

vlmpnovnwnsnrl' IN PAPER-Box MAcHlnEs.

Specification forming part of Lett-ers Patent No. 132,078, dated October 8, 1872; reissue No. 6,7475, datedv .I

NoYember'16,'1875; application filed July 30, 1875.

Boxes of Paper, Pasteboard, and other mate#r rial, 'of which the following isa specification:

The machine is intended primarily for mak-- ing boxes of paper or pasteboard without cement, the fastening being effected by wire staples, which are producedand applied'by The box blanks are placed Ain .a receptacle provided with a sliding bottom, which is drawn up by a weight and cord applied to a fuseepulley adapted to graduate the power of the weight to correspond with the number. and Weight of the blanks remaining in 'the receptacle. The weight-pulley is detained by a ratchet, which prevents the drawing up of the sliding bottom, excepting when the said ratchet is retracted. The blanks are taken one'by one from the top of the pile by a pneumaticl or section' feeder, provided with automatic valves to adapt it to seize a'ud drop the blanks at the proper moments. The said feeder, in its descent, retracts the detent-ratchet, and receives a slight upward pressure from the pile of blanks. c As the feeder rises again with one blank the detent, being released, catches.v

the weiglit-pulley, so. that, whether the quantitv of blanks be greater or less, the top of the pile alwaysrests at one level to receive' the feeder.

it is forced by a plunger, the bottom flaps being first bent up, and the end aps next foldedover them as the plunger descends. The wire to forin staplesis, in continuous lengths, contained on reels, vequal inl number to thestaf ples used in each box. rlhe wires being fed forward by rollers at each` stroke yof the ina- Y chine, the necessary length' to form a staple is out' from each wire by an annular or forked cutter is formedwith internal lobgitudina'll grooves, which receive the staple as it is The blank, being deposited on a ta-I ble by the feeder,- is carried forward by a fol-` lower toa position over the mold, into which formed,and hold it securelyv while it is carried by the motion of the cutter tothe proper position to be driven. The mandrel then recedes, and the staple is driven through the Y lapped sides of the box by a hammer or pushrod, working concentrically within the Vannul'ar cutter. Cavities in the plunger receive in- ,-,wardly-projecting ends of the staple, which ends are then bent in opposite directions, ieither toward or away from each other, by slides or clinchers working in .the sides of the plunger, while the head of the staple is still held by the driver. The plunger is then withdrawn, and its descent with a new box discharges that which was previously formed. The various parts are made changeable or adjustable, to adapt them for the manufacture of boxes of various sizes or forms.

In the accompanying drawing, Figure lis a plan or top view of a machine illustrating the invention, with some of vthe upper works emitted. Fig. 2 is afront elevation.- Fig. 3 is a vertical section ata a, Fig. 1. Fig. 4 is a plan of the upper part' omitted 'in Fig.`1.

Fig. 5 represents a vertical section of the'boxmold at b b, Figf, and an elevation ofthe plunger thatworks therein,'as 'hereinafterd'escribed. Fig. 6 is a vertical section of the same parts in the same position in the plane indicated by the line c c, Fig. 5. Fig. `'7 is a section atb b`, fg. 6, showing ythe parts-in' a different position.v Fig. 8 is a horizontal section at d d, Figs. 9 and 1l), of the devicesfemployed to cut,` the wire 'and form' and drive staples to fasten the parts of vthe box together. Fig. 9 is a vertical section of the same at .e c, Figs. 8- and 10., Fig. 10 is avertical section thereof at f f, Figs. 8 and 9. Fig.

A11 is a Vsectional elevation Vof the mechanism femployed for feedingV the wire.

Fig. 12 is a horizontal sectionA of the same at g g, Fig. 11.

Fig. 13 is a sectional elevation of the .blankfeeding apparatus hereinafter described, and Fig. 14 is a plan of a box-blank. Fig. 415 is a perspective view of a box.

` The main frame of the machine consists of Ava bed,1, standards 2, and table 3, of .proper construction to support and aord bearings for thev various working parts. The boxblanks 4 4 consist of simple rectangular e l i n.145

- iay bei-slightly bent into convex form to ncilitat/ e the separation of the uppermost as hereinafter described.

f Any desired ,number o these blanks are placed in a verf-l tical pile within a receptacle, 5,-resting' on a sliding bottom, 6, which -bottom is drawnup as fast as the blanks are removed bycords 7 7 passing over pulleys 8 8, attached to a shaft, 9, upon which is also keyeda inseepulle-y, 10, carrying a cord, 11, from'which is suspended a weigl1t, 12. These parts are so constructed and arranged that the weight 12 lwill more than counterbalance the box-blanks resting on the sliding bottom 6; and -as the reduction of the pile of blanks permits the weight112to descend smaller part of the fusee 10 will act with. less leverage on. .the elevating-cords?, and hence the upward pressure-of the bottour 6 may. be graduated approximately in .proportion to the -weight ofthe boxblanks resting thereon. '1 3is a detent-pawl'engaging witha ratchetwheel, legte-prevent the-elevation ofthe bottom 6, excepting at proper periods, when the detent is retracted.-

inzyokesl'l 17 on rods 18 18, attachedat top v The arrangement of the parteA is such to to a cross=head,-19, carrying, a horizontal arm,

2 0. ipo-which is-fattachcd the feeder 21.; This feeder-fis fori-ned with cavities 22 in its'nnder side; communicating with a nozzle,y 23, 'to

whit-,his attached a loose orfdexible tube, 24,

connecting with anairfpnmp, or any suitable exhaust apparatus. Vi'ithinl the .nozzle 23 is athrottlefvalve, 25, controlled by a bell-crank tappet, 2 6', one end of. descends and presses strikesa stud, 27 to open thevalve.

is thus exhainstedl beneath the feeder.

Att-he.

same timea stud, 28, o n the feeden 21-strikes the .heel o f the detent-pawl 13, retracting-it from fthe .ratch etwheel 14, and causing the weight 12 ,to pressthe blanksup against the feederasthe latter ascends, and to elevae the pile of blanksnntil the stud'28.

one or more of the projectionsor bars 21, Fig.

3, placed .between .thecavi-ties 22, or on one or both sides of a single tion shows suction-cavities at the ends-of the feeder, and a 'progccting ridge 4bet-Weenv them.

ity and ridges the cord 11 reaching. a

- in g connected -bya rod, 35.*-

' ilya"ca1n, 44, working in ya yoke-lever, to the stationary frame, and jointed' at47 to which, as the feeder 21, 'onthe topmostblank-4,A 'end'offy which isy jointed to a vertical -le- .I'velgt 49, which latter is .fulcrnmed :at its lower cavity. The illustra- We have used with good effect a central cavat the ends.- The months o r margins ot the suction-cavities'22 have dat faces, giving them an effective hold onthe blank, and the ,projection or. projections 21,

lby depressinganother part of the blank, prevent more than Lone blank following it. 29. .29

are pins upon the feeder, to limit themovement of the valve-tappet -26 in eitherA direction. (See Figs. 3 and 13.) Upon the table 3, directly over apart until the plunger has ascended with a 4blanlnvvhen the plates again close over the blank-receptacle and receive the blank, which drops from the feeder 2l as soon as the Valve 25 is closed by 4the lower striking the arm-27, The movement of these sliding plates is produced by'levers 31 and 33, the former being- 'fulcrume'd at its center'32, and the latter at one lend ,ulg andthe two be# The forward end of the lever 31 is jointed toa vertical lever, 36, which is fulcrumedf-to a stationary standard on the frame, vand is operated by a stud,-37, ou. the cross-head 19 working in -a slot-in said lever 36. Lips38, Figs. 1, 2, .and 3, attached to the sliding plates 30,- andl projecting over the same within recesses 39,-Fi g. 4, in-the:'si des of the feeder 21, insure-.the deposit ofthe blanks from the bottomof -thfe plungeronto the plates 30. A spring,

detent-pawl 13, to lcause it to act promptlyfin arresting themotion of the s'haft`9. The boxblank being deposited on the sliding plates 30,

is movedv forward,-car rying 'the blank centrally over. the mold 42 and be-A 2 neath-a plunger, 43,.projecting downward fromv the center of the cross-head 19. The sliding a s lidingrod, 41,-

on the main driving-shaft 15,

theforward end-of a' connecting-rod, 48, the

end'dto the stationary frame, and at its up per enda51` is jointed to the-rear end of theV .rod41r l 55 55 are guide-plates, projecting up'- w'ard, sufficiently 'to conduct the" blanks over 'the'ele'vated folders 54 54.` rfhe nextde'scent -of the crosshead 'carrvthe'blank the pawl- 13, when .the latter instantly. catches.:

19 causes Atheplunger 43 to downglinto .the mold 42, 'in

whichr the box 4i'sformeL..l This mold' consists lof :two bottomilap folders* and two end-flap vThe topmost blankbeing held folders, the latter with two inclined. dan ges eachA arranged inl combinatiom-'so' as tozfold the. box-blank around the plnngers'as-'the lat;

iter descends into the mold..- Thebottom-flap' {folders 54 54 are elevated alittle above the others, so .that the. plungerv rstforces the` j box blank. between them-fin its downward 'movement'.,therebyfolding-fthe bottom jilaps --Them as'the l plunger descends vstill farther, the box-blank 52v 52 up. against' the' plunger.

the blank-receptacle, is apair of sliding plates, 30 30, which recede from each other as the plunger descends, and remain end of the tappet 26 40, is applied to the 45, -fulcrumed at 461 anni.

is forced between the side folders 56 56,1vhich i causes the sides of the .box-blank 4 4to fold also up against the plunger. The next operation consists of folding' the end aps 58 53 also4 around the plunger, and over Vthe bottom flaps 52 52, which latter are still held .against .the plunger by the longl points of the -endl folders until the end aps 53 53 are foldedv around suicieutly to retain the bottom flaps 52 52 in place. .This folding of 'the end flaps -53'53 is done by the inclined flanges 56* 56",V

:enough between each opposite pair to admit the mechanism that inserts the wire staples into the4 box. The anges gradually assume ,a right angle with the side folders as they near the bottom. .so that, when the box is' .clear y'down into'the mold, the ilaps 53 53, to Vform the ends of the box, are bent aroundin position to receive the wire'staples. Euch air of opposite'danges-are so inclined in reation to 'each other that-the side flaps are folded around at the same time when their 4edges are intended to meet Hush, or oneilange should be inclined a little in advance of the other i'f-the side flaps are intended to overlap each other, as is the case in the form of .box

` here represented. s

v The boxis now completely shaped, and is held y .within the mold in readiness for the fastenings. The wire 7 is .wound in continuous lengths on reels A58 58, Figs. 1 and 2, from which it is drawn byfeed-rollers 59 59, driven intermittently bythe mechanism shown in` Figs. Il ancl l2. This mechanism consists of a horizontal yoke-lever, 60, fulcruxned at its center 61,. and incl'osing a wrist-pin, 62 on the' vertical shaft 63,' ldriven Iby bevel-pimons 64.

i (See Fig. 2.)` The yoke of the lever 60, in"

which -the wrist-pin 62 works,.is formed with two shoulders, 65 66, with which .the said wrist-pin engages alternately to move thelover in opposite directions. No effect is produced on the lever while the pin Apassesl over` the curves between the shoulders. A connecting-rod, 67, at the free end of the lever 60, is jointed to anf'arm, 68, carrying a pawl, 69, which ,engagesy with al ratchet-wheeL'FO, on one of the roller-shafts, 'the two rollers of each pair being geared to turnftogether.

It will thus appear that 'each forward movemen-t of the lever impartsA a slight rotary `movement to the'feed-rollers,y and the partsare so constructed and proportionedthat each t movement will feed forward a length of wire 'suicient to form a staple.

`One pair of feed-rollers, withf their .operating mechanism, may, as represented, feed all the wires used on one side of the machine.

4 The 'operationof cutting, forming, driving,

andclinehing Vwill be described with reference to a single staple-it being understood thatthisV operation. is performed simultaneously -in two, four. six, 'or more places, according to the dimensions of the box which the machine is at the time employed to make.. The drawing shows mechanism for applying Vfour staples-two on each side. The mechanism for cutting, forming, and driving the staples is shown in Figs. 8,'9, and 10. A proper length of wire is severed and bent around a .square mandrel, 7l,by an annular punch or cuttingfork, 72, formed to passtrausve'rsely over the mandrel 71, and having in its interior longitudinal grooves 73, Figs. 9 and 10, which receive the wire as it is bent around the mandrel, andhold the staple in properv position for driving.` The reciprocating movement of the punch or cutting-fork 72 is imparted by a cam,

`74, upon the shaft 63. Within the punch 72 is a sliding hammer, 75, which is held hack hy pins 76 and 77, and, when released by the retraction of the pin 76, is driven forward .by a spring, 78. Thapin 77 projects from the hammer 75. The mandrel 7l and pin76 are both attached to a crank-lever, 79, fnlcrumed at 80, and moved back and forth by a cam, 81, on theshaft As soon as the motion of this .lever withdrawsthe mandrel 7l from before I tliewstaple, the latter being still held lin position by the-grooves 73, the pin 76 releasesthe pin 77, permitting the spring78 tol'drive the hammer forwardfwith a sharp percussion -on the staple, driving it through the twolor three-thicknesses of paper, and thus connecting the laps of the box. The legs of -the staples are securely held and guided by the longitudinal grooves in the punch or fork 72, so

,as to prevent their bending while the staple is driven throughV the'paper. The ends f the staples are received inv suitable cavities in the edges of the plungen43. 4The mechanism for clinching or bending over the ends'of theV staples is'representedin-'Figs. 5, 6, and 7.

lFig; 5 and show the positionsof the parts when the-:staples are driven, andbeforethey are clinched.l Fig. 7 shows the position when they' are clinched. 0n the head of the vertical shaft 63 is a disk or wheel, 79, from the upper surface of which project two pins, 80* and* 8l, which operate a rock-shaft, 82, mounted horizontally in bearings under the cross-head. This rock-shafthas a pair of tap- Y pets, 83 and 84, on which thepins 80 and 81* act successively. Upon the shaft`82 are rigid arms 85 87 projecting in opposite directions,

and cach connectedto a slider, 86 88, which y two sliders constitute the plunger 43. 89 and 91 .represent horizontal lugs on the slider 86,

and-90 and 92 similar lugs on the slider' 88.

These lugs are arranged alternately asrepresented, so that the motion of the shaft82, in one direction, vby` depressing the slider 86'jand elevating the slider 8,8, withdraws the two lugs 89 and-90jtowardvieachother, andl the two lugs 91and 92'toward eachother.

As soon as the downward 'strokeof .the cross-head 19 has formed, the boxwithin the mold, and the staplesjhave" been driven, in the A.manner explaine'i, one offthem with its ends between the lugs 89 and 90, and the other with its ends between the lugs 91 and 92, the rotation of the shaft 63'throws the pin 80 against' the 'tappet 83, rocking the shaft 82 in' one di-j rection, bringing together each pair of lugs 89 90 and 91 92, so as to bend the twov ends of each staple toward each other flat against the surface of the material, and eifectually secure them, without the necessity o'f subsequent hammering. This position of the parts is shown in Fig. 7. The subsequent contact ofthe pin 81" with the tappet 84 rocks the shaft in the otherxdirection, so as .to open Vor separate the lugs in' readiness .for the `nent operan tion.' A spring, 93, catching over the top of the box prevents it rising with the plunger, and when the plunger again descends with a .new blank the previously-'finished box is ex.-

pelled thronghthe bottom of the mold. o

A-'modiication in the Vconstruction of the plunger is illustrated in Fig. 2. In this case the body'of lthe plunger is made in one piece with-a single slider working in it.-' The motion of the shaft in one direction throws down this slider, to lbend down the upper' part of each staple, and the reverse motion opens the cavity, as'before.

. This opening of the cavity is' performed `directly before the action of the'` hammer 75, and is followed by the clinching action just described. The elevation of the plunger itself then bends up the lower mem` berof each, staple, and thus completes the clinching action. V f' The following is claimed as new: 1. The blank-holder 5 6 and graduated counterbalance device 8 9 10 11 12, combined and arranged, substantially as herein described,

to elevate the blanks, as required,with aforce varied proportionally to the height of the pile of blanks.. c Y

2. The detent 13'14, and automatic device,

for temporarily releasing the same, substan-l tially as set forth.

inbefore explained.

3. The feeder 21, constructed with one or more cavities in its face, connected with a pipe for exhausting the air, in combination with the valve or valves operated by the descent and ascent of the feeder by mechanism, substantially as herein described. o

n 4. The annular punch or bending-fork 72, constructed with a cuttingiface, and with intex-nal longitudinal grooves 73, so as t'o sever a staple-blank, bend it around a suitable mandrel, and hold and guide it for driving, as here- 5, The reciprocating punch or bending-fork 72, operating to sever the wire to bend-it over a suitable mandrel or former, I staple forward into position tobe driven, substantiallyr as described.

o 6. The reciprocating punch or bending-fork having a longitudinal central openin g, through which a hammer or driving-rod may operate, substantially as described.

7. The punch or bending-fork 72 and mandrel 71, operating in combination, substantially as setforth, toform the staples.

8. The wireclinchers,vsliding in a plane par-f allel with'the material through which the stao ple is driven, so as-to clinch the staple ends fiat down on suchmaterial, as explained, without subsequent hammering.

9. The combination of a hammer or drivingrod, to force a'staple through the material,

and bending mechanism, operating, substantially as described, to turn the points lof the staple flat against the material while the hanfmer rests on the head thereof.

HENRY n. HEYL'. AUG. BREHMER.

l Witnesses GEO. L. PFoUT, v Wim/G. STEvENsoN.

and to carry the.

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