US1140297A - Box-blank machine. - Google Patents

Description

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H. BROWN.

BOX BLANK MACHINE. APPLIcATloN FILED Qcns. 1913.

Eaten May 18, 1915.

4 SHEETS-SHEET l.

H. BROWN.

BOX BLANK MACHINE.

APPLICATIGN FILED ocT.6.1913.

lQM-@ Patented May 135 i915.

' Y 4 SHEETS-SHEE 2.

Il Ill j m. @f2/...

H. BROWN.

BOX BLANK MACHINE.

APPLICATION FILED OCT. 6. 1913.

191.4@929'70 Patented May 189 MM5.

4 SHEETS-SHEET 3.

ATTORI/Ey H. BROWN.

BOX BLANK MACHNE. APPLICATION man ocr. 6. 191s.

Patented May 18, 1915.

4 SHEETS-SHEET 4.

an erstens retentir carriere.

HUGH BROWN, F BATTLE CREEK, MICHIGAN, ASSIGNOR T0 THE GREENSTREET FOLD- ING BOX MACHINE COMPANY, OF INDIANAPOLIS, INDEANA, E. CORPORATION 0F BOX-BLANK MACl-INE.

l Specification of Letters Fatent.

Patented May i8., i915?.

Application led Uctober 6, 1913. Serial No. 793,786.

Ta @ZZ whom it may concern Be it known that I, HUGH BROWN, a citizen of the United States, residing at Battle Creek, in the county of Calhoun and State of Michigan, have invented a new and nsetul B0X-Blank Machine, of which the following is a specification.

The object of my invention is to produce a machine by means of which boX blanks, cemprising one or more series of cordinatable cleats and associated sheet material may be assembled into a box blank.

The accompanying drawings illustrate my invention; Fig. 1 being a side elevation of a machine embodying the same; F ig, 2 a horizontal section immediately above the work table on line 2-2 of Fig. 3; .Fig 3 vertical section on line 3 3 of Fig. 2; Fig. i a fragmentary section through one of the feed-chain-carrying shafts; Fig. 5 a diagram o a portion of the feed-chains and associated cleats; Fig. 6 a transverse frag .mentary section of the feed-chains, associated cleat and sheet guides, and a cleat i and sheet; Fig. i a fragmentary section on iine 7 3? of Fig. 2; and Fig. 8 a fragmentary section on line 8 8 of Fig. 1.

1n the drawings, 10 indicates a main rame carrying an anvil bar 11, ani/'ils 12, stapling mechanism 13, a shaft 14, eccentrics i5, eccentric strap 16, and pitman 17 connecting the eccentric shafts 16 with the reciprocating portion 13 of the stapling mechanism. Leading to the anvils 12 are cleat guides 21, 21 through which cleats 22 are delivered to the anvils and projected through the stapling plane.

rFlins far the parts are ci? airy 'torni and the drawing is intended t i J. these parts merely in a typicai manner ev well. k roy-rn and commoniy new "cialiy in use machines fer proA soir run so, 2?--2 eted .cross 2e, 25', and 27, respectively, the cross bars 26, and 27 extending bver the intermediate chains without interfering with the movement of the same, although no cross bar can pass beneath any other cross bar so aste alter the proper sequence of the bars. The outer two chains 27#27 are con- In the present drawings, l have shown the several pairs of chains connected each with a single cross bar and in most instancessuch an arrangement is preferable although it will be readily understood that each pair of chains may be provided with several cross bars so that there will be two or more series of the same. rihe cross bars 24, 25@ 26", and 27 are carried by blocks 28 one of each pair of which carries an upwardly projecting sheet gage finger 29 which serves to properly space the sheet sections of the blank, and the cross bars are of suchthickness as to properly space the cleats in endto-end relation, as clearly indicated in Figs. 2, 3, and 5. lf a single feed-chain were used instead of a pair, the overhanging of the cleat-,engaging bars would result in a buckling of the feed-chains which is most readily the machine they are supported upon idlers 31. Beyond the stapling plane chains 21-2d are carried by gears 32 keyed to shaft 33; chains 25-25 are carried by gears 3i, keyed to shaft 35; chains 2(526 are car- "by gears 3G, keyed to shaft 37; and 27-2? are carried by gears 38, keyed te shaft 33, 35, 37, and 39 are parallel with .each other and it will be readily linde teod that it is not material which shaft drives any particular pair of chains. dournaled upon each sha'jt 33, 35, 37, and 39, adjacent the gears which are to it, are idler gears f1.1 which sup* port the chains which are positively driven by the other shafts so that each pair of chains is controlled its movement by a single shaft. y

Each shaft 33, and 39 is under the control of a step-bj/step or intermittently active driving mechanism 42, and a continuonsly active, conveniently friction, drivingmechanism Each friction driving mechanism comprises a gear, or sprncret, e4 giournaled'on ried f which may be engaged by a clutch memberv the gears is a chain 54 which may be carried over either one of a pair of gears 55, 56, keyedl to a counter-shaft 57. Shaft 57 also carries a gear 58 which is connected by a chain 59 With a gear 61 journaled on the drivel shaft 51 and provided with a clutch member 62 63 splined upon the' shaft 51 and controlled through link 64, lever 65, and link 66, by a foot lever 67. The arrangement is such that, by shifting chain 54 to the proper gear 55, or 56, the friction driven speed of the feed-chains may be varied. It should be understood that any yieldingdriving mechanism may be substituted for the friction drivingmechanism shown.

The ratchet driving mechanism for eachA shaft 33, 35, 37, and 39 comprises a ratchet wheel 71, a pawl-carrying leverV 72, and a pawl 7 3 engaging the ratchet, and the several paul-carrying levers are so proportioned and connected by the llinks 74 that simultaneous reciprocation of the paWl-car--.

rying levers will produce simultaneous and uniform advancement of the several shafts 33, 35, 37, and 39. ln order to obtain this ratchet advancement of the several feedvchain-carrying shafts, I connect a lever 75 to a link 75', attached to one of the pawl levers 72, said lever 75 having a slot 7G which receives the fulcrum 77'. The lever is swung'by means of a pitman 78 operated by an eccentric 7S on shaft 14 and this pitman may be connected at number of points to the lever 75, as shown in Fig. l. l

It is desirable at times to temporarily prevent the vratchet driven movement of the feed-chains and it is for that reason that the slot 76 is provided, a link 7) being pivoted to lever 7 5 and to an arm 80,'carried by a rock shaft 81 provided with a hand lever 82, the arrangement being such that by shifting the lever 7 5 to the left '(Fig. 1) its effect o n the pawl levers may be so diminished as t'o produce no advancement of -the ratchet wheels. It will be readily understood that any desired form of 4intermittently-active advancing means may be substituted for that vwhich has been described.

The pawls 7 il are conveniently formed to co-act with springs 7 3 in such manner that y they may be held in active o'r inactive position so that, When ini-nactive position, the adj acnt shaft may be-freely turned by hand `bar 25 brought up passes beyond the any one of aV providing operative to place orally toward and from in order to bring the cross bar of the feedchains controlled by that shaft, into any.

desired position. y V

In operation, the rear cross bar 27 will be brought to a position just in advance of the stapling plane and the proper cleat inserted in the cleat guide behind it. Bar 24 will then be brought up behind that cleat, a second cleat inserted behindfbar 24;

behind the second ci t a third cleat inserted; bar 26 -behind the third cleat, and a fourth cleat the bar '-2,6'. Thereupon laid upon the first cleat, the the staples driven in inserted behind sheet material is machine is started, and the ordinary manner. 1n this condition of parts the friction driving mechanisms, which are being advanced at a speed exceeding the speed of the ratchet driving mechanisms, will be incapable of advancing any of the chains whose cross bars lie behind cleats whose forward movement is sisted but the vadvancement of these feedchains andthe cleats and sheets Will be due solely to the ratchet driving mechanisms and willtl'ierefore be synchronous, positive and step-by-step in coordination with the stamaterially repling mechanism,v but chain 27, whose crossv barl lies in l will be free to be driven forwardly continuously at a somewhat high speed so as to be brought up behind the fourth cleat and serve ,toA keep this fourth cleat up against the cross bar of chain 26. Shortly after the appearance lof the cross bar 27 at the receiving end of the cleat guide the cleat-providing operative will place a cleat in the cleat guide behind the cross bar 27 and,

' as the blank material is fed through the machine and the rear end of the'first cleat gears on shaft 33, the cross bar 24 will space between the first and second cleats, as clearly indicated in friction driving mechanism on shaft 33 Will lserve to rapidly advance chain 24 and bring its cross bar 24 up behind the first cleat of the next blank. above, that it is only necessary for the cleata proper' cleat in the cleat guide between the cross bars of each two feed chains, and that it is not nee.- essary for him to pay any further attention to the cleats so placed. By this arrangement, the feed chains are acted upon by the ratchet feeding mechanism to positively drive theblank material through the machine for the stapling action and the friction driving mechanism operates to 125 advance the chains through theirnactive portions of necessary travel. y

Asis customary in machines of this type, one of the cleat guides 21 is'adjustable latthe other cleat guide and for this purpose I provide the usual front of the foremost cleat,l

be drawn outfrom the.

lig. 3, whereupon thev It will be seen from thel Vist screw threaded adjusting Shafts 90, 90 connected by a sprocket chain 91. Some of these screw threaded shafts engage suitable nuts 92 carried by the cleat guide, and others engage nuts in a bracket or plate 93 whichv connects the several groups of sprocket Wheels associated with the chains of that cleat guide. In order to permit this lateral movement of the groups of sprocket Wheels each of the shafts 33, 35, 37, a'nd 39 has splined upon it a sleeve 94 upon Which the appropriate sprocket `Wheels will be keyed and the remainder journaled, as indicated in the center of Fig. i and these sleeves 94 are journaled in thel bracket 93 but connected so as to partake in its lateral movement.

l claim as my invention l. The combination ofv material-guiding means, means for operating upon the material, a plurality of independently movable material-feeding members traversing to the same eXtent the guiding means, and two driving mechanisms for each material-feeding member, one of said driving mechanisms operating through the feeding members to drive the material in the guiding means, and the other of said driving mechanisms operating to move the feeding member through a portion of its path of travel.

2. The combination of material-guiding means, means for operating on the material, a plurality of feed-chains each carrying a member traversing the material-guiding means, and a plurality of driving couples, one couple for each feed-chain, one member of each driving couple comprising intermittently operating driving mechanism operating to drive its feed-chain and material engaged thereby intermittently through the guiding means, and the other member of each couple comprising yielding driving mechanism capable of driving its feed-chain when suticiently vunopposed.

3. n a box blank machine, the combination of stapling mechanism, a cleat guide leading thereto, and a plurality of feed. chains each having a portion traversing the cleat guide, a plurality of driving couples for the said feed-chains, each couple comprising driving mechanism operating upon its feed-chain to drive the same positively step-by-step, and the other member of each driving couple comprising yielding driving means acting upon its feed-chain to advance the same when suiiiciently unopposed at an average speed greater than the speed of the step-by-step driving mechanism, and means for synchronizing tWo or more of the stepby-step driving means.

,4. In a box blank machine, the combination of a stapling mechanism, a cleat guide leading thereto, a plurality of independently moving feed-chains each having a portion traversing the cleat guide to the same extent, ratchet mechanism operating at times upon the feed-chainsfto positively advance the same step-by-step, and other yielding driving means operating upon the feedchains to drive the same when sufficiently unopposed at an average speed greater than that obtained by the step-by-step driving means.

5. In a box blank-machine, the combination of stapling mechanism, cleat guides leading thereto, a pluralityy of feed-chains each having a portion traversing the cleat guide, a plurality of driving shafts each supporting and controlling one of the feedchains, ratchet driving mechanism operating upon each drive shaft to advance the same step-by-step, and friction driving lmeans operating upon each drive shaft to advance the same when sufiiciently unopposed at an average speed greater than the speed of the ratchet mechanism.

6. In a box blank machine, the combination of stapling mechanism, `a cleat guide leading thereto, a plurality of independent ,movable material-feeding members traversing the cleat guide, each arranged to drive material therethrough, and two driving mechanisms for each material-feeding menu ber, one of said driving mechanisms operating through the feeding members to drive the material at one speed, and the other of said driving mechanisms operating to vdrive the material at a greater speed when unopposed by preceding material under the con` trol of the first mentioned driving mechanism.

In Witness whereof, l have hereunto set my hand atv Rattle Creek, Michigan. this 3rd day of October, A. D. one thousand nine hundred and thirteen.

0. M. FOWLER, E. NICHOLSON.

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