US1284771A - Machine for corrugating paper. - Google Patents

Description

J. N. QUINN. MACHINE FOR CORRUGATING PAPER.

APPLICATION FILED MAR. 27. |916. 1 ,284,771 Patented Nov. 12, 191s.

3 SHEETS-SHEET 2- 1. N. QmNN. MACHWE FUR CURRUGATENG PAPER.

APPLHIATIQN FREI] MAR. 27. HHG.

Patented Nov. 12, 12H8.

3 SHEETS-SHEET 3.

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ru gatin g JOHN N. QUIN'N, 0F CINCINNATI, OHIO.

MACHINE FOR GORE'UGATING YAPER.

l Bpecication of Letten Intent. Patented Nov. 12, 1918.

Application tiled March 27, 1916. Serial No. 88,884.

To all whom it may concern:

Be it known that I, JOHN N. QUINN, a citizen of the United States, and residing at Cincinnati, in the county of Hamilton and State of Ohio, haveinvented a new and useful Im rovement in Machines for Coraper, of which the following specification is a full disclosure.

My invention relates to devices adapted to operate upon a continuously travelin web of paper or paper-board for manuf turing a corrugated, embossed or iuted product. or otherwise appropriately shaping the Inaterial as for forming folding packing containers.

An object of the invention is to provide opposing die members traveling as endless carriers, arranged to progressively coperate, whereby they successively engage a traveling web of n'laterial, drawing the saine therewith, and in a feeding or traversing direction of the material graspingly compressing the material between tlie'dies, with` out. rupture or injury thereto in the process of forming and separating the dies and material in an analogous manner for a free withdrawal of the finished product.

Another object of the invention is to provide opposing dies arranged in two series, with the dies of each series coupled and supported to travel as endless carriers, and as carriers adapted to intersect cach gother for bringing the dies progressively itito overlapping degrees `to positions of interlnesh and adjacent registry in a corresponding direction of motion with that of a traveling web for engaging the web between the dies, and cooperatively continue their travel in a tangential plane for a 'determined period and under a latcralor clamping pressure for compressingly confining the material between the dies until it assumes a permanent set.

Another object of the invention is to provide a series of die members of one class, arranged and supported to travel as an endless carrier and each relatively staggered to the die of a second class of a series, and each die of said second class fulcrumed to swing independently of its next adjacent die, and upon axes located diametric to the axes of the respective dies of the first class, whereby two adjacent dies of ,the second class as companions segmentally register and coperate with a respective die of the other class. In corrugating a web of material the opposing dies operate alternately upon the opposite sides or surfaces of the web and progressively in a folding-like or embracing action converts the material to the shape of the dies, whereby the material is not subjected to any Wedging `or stam ing infinences which rupture or weaken t e finished spective view showing thework-accomplished by the corrugating mechanism of a preferred form. Fig. 3 is a partial longitudinal section of thecorrugating or fluting devices. Fig. 4.- is an. 4enlarged end elevation of a section ofthe upper. endless carrier and former dies.4 Fig. 5 is an enlarged bottom plan view partially in sectionshowing a portion of the lower endless carrier and former dies. V 6 is an enlarged section on line tie-6, Fig. 3. Fig. 7 is enlarged section on line 7-7. Fig. 3.

` As illustrated, the machine is adapted to opera-te upon a web of paper for printing, perforating and corrugating the same for manufacturing egg carriers m a continuous performance. The invention herein, howover, is tnore principally directed to the means for corrugating or iluting the paper or card-board and therefore will be treated as separate from a complete organized machine.

The printing devices may be of any wellknown type Vof construction operating upon a web of paper and driven at a proper ratio with respect to the perforating or punching devices and corrugating devices in order to properly feed the paper to the corrugating devlces. y

`'Referring to Fig. 1 of the drawings, 1 indicates a web of paper or caloboard suitably journaled bymeans of a spindle 2 supported` in bracket extensions 3, projecting from the mam side frame 4 of the machine. The paper is fed between a pair of rolls 5, 6,

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suitably supported and journaled, from whence' it is fed to the rotary printing mechanism for printing upon leither one or both' of the sides of the strip. The printing mechanism may be of any well-known form. From the printing mechanism the strip s between perforator devices com ris'l pa er durin the ccperation of the punch,

an die mem ers.

' The punching` mechanism is reciprocated in proper time movements cordinately to a preferred operation preferably by the folowing devices 9 indicates the main driving shaft receiving its rotation and power from an suitable source. A inion 10 is fixed lto t4 's shaft meshin wit a gear 11 upon a shaft 12 sai shaft being suitably'journaled in the side frame 4. The shaft 12 hasa gear 13 fixed-thereon in mesh with a gear 14 fixed on a shaft l-journaled in the sidek frames. Said gear 14 connects with a train of glears leading to the printing cylinders. The s aft 15 is provided with a cam 16 adaptedin its rotation to engage the lever 17 suitably fulcrumed upon the side frame. This lever 17 connects. with an extensible connecting rod 18 and said rod connects with' the die carrierl. 4Thus the cam 16 ineach cycle will rock the lever 17 to reciprocate the punching mechanism.

19 indicates a s ring1 connecting with the lever 17 for yic ding y urging the lever against tHe cam. A second cam 20 is fixed upon the Ashaftl coperating with a lever 21 suitably fulcrurned in the side frame of the machine. ,Said lever at its fnlcrum end is provided with a crank disk 22, which pivotally connects withan extensible pitman 23,4

said itman in turn connecting with the vertical yy reciprocating punch head 8. Thus, whenever t e lever i21 is rocked, it will impart motion to the crank diskand pitrnan for operating the punch carrying heads.

From the punching mechanism. the paper passes y y n feedingl the strip to the corruati flutlng mechanism. These feed rolls 'ave t eir peripheries frictionally engaged and positively rotated',"and in driving connection with the transmission of the machine. The shaft 15 has a .bevel gear 26y fixed thereon meshing with a bevel 'gear 27 fixed upon a shaft 28.

Y Said., shaft r28 is supported .and journaled in the bracket,bearin y 29-29,v connected to the side framie 4. t e shaft 28 extends rearture Afold to between coasting rfeed `rolls 24, 25, for

wardly to the corrugating or ilutin mechanism. The opposite end of the sha t is provided with a bevel gear 30 in mesh with a bevel gear-31 fixed upon a shaft 32 suitably journaled in the sidc'frames of the machine, and the shaft 32 has a gear fixed thereon, in mesh with a gear 34 fixed uponl a shaft 35, the shaft 35 being journaled in the side frames of the machine.

The gear 34 is in mesh with a ear 36 and the gear 36 connects in train wit the ears 37, 38. The feed'rollers 24, 25 each ave their shafts suitably journaled in slide blocks, sliding within guide brackets or bearings 89, supported upon the side frames.

In the manufacture of corrugated or uted v. l

card-,board it is desirable in the finished product that each corrugation be molded or formed to a permanent set and without rupture or injury to the paper stock in the roces's of formi The pa er stock usua ly is in a tempore or treats condition as it is operated upon by the forming mechanism, and thus is of a delicate texture and easily ruptured or injured if subjected to any undue pulling or stretching strains in forming each corrugation.

Corrugated aper board as largely used for paclng has t ecorrugations usually uniorm and of small radius so that the ru ture in the paper stock is not as perce tib e or detrimental to effect its commercie utility.

When the corrugations are of large proportion and join each other with an abrupt old, as shown in Fi 2, wherein the product represents a sca oped coniguration in cross-section 'rupture of the `material while forming must be avoidedffor otherwise the product would be unduly weakened at the fold. With the semi-circular secticnsjadapted to swing u on each other at their juncflrm cylinder containers, and weakening or rupture of the paper stock 'at such hingmg points renders them easily torn apart, destroying the usefulnessof the package. In operating upQn pre rinted stock, stretching of the material is etrrnental to Vand mars theprinting finish, .and destroys the `article as a product of quality.

With 41n improvement ,the forming re- 'solves itsel into a process, progressively operating upon the stock in the direction of lts fedin traverse longitudinally comparative to a ro ling motion so that'the stock is not subjected to .strain transverse and resisting to the feed. The opposing forming dies in their coperation en age the paper in a feeding direction an in an alternate relation with respect to each other. That is to say, in for-min the upper die raws the material in t e direction of feedin traverse and in a sector proportion tower the die surface of asega semi-circular corru ation mental lower die; the engaged dies continuing in travel in a line of paper feed, and followed by companion segmental lower die moving to close toward the other, graspingly compressing the iiiaterial in shape by drawing the material over the upper die coinplating a corrugation.

series of upper and lower dies arranged in the forni of endless carriers coperating for a given length of travel compressing and confining the material to its molded form for suhjcctii'ig the material to a setting period in the process and released from the dies when in a. permanently set condition. The withdrawing operation is similar to the forming operation in that the dies separate or move apart progressively in the line of paper traverse so that the material is not subjected to withdrawing strains. The material as it is fed from the printing and per forating devices is aided over the roller 40 journaled between t e side framesvof the machine (see Fig. 3), from which it is fed to the forming dies. A feeding ratio between the forming mechanism and printing or performing mechanism is established so that its traverse is relatively faster through `the punching and printing mechanism than through the forming mechanism to accommodate for the variance in the lineal .measurements of the material before and after foi-ming. This difference in feed, loops the material to allow sullicient slack to the material between the forming and punching mechanism so that no pullin strains will be imparted as the material is rawn or formed over the cooperating upper and lower dies. The upper dies arranged as an endless earrier for sha'pin the material into the particular design illustrated comprise a. series el rollers 4l in spaced relation and connected by links 42. Y

The arrangement for mounting, supporting and tracking the dies may be variously modified, hut as disclosed, the upper dies are linked together in the form of an endless carrier, engaged over sprocket wheels at the ends of the carrier runs. The upper dies in their forward carrier run cooperating withV the lower dies in a corresponding carrier run. The sprocket wheels are arranged in sets or pairs, although other forms of transmitting support are adaptable. As illustrated, the carrier transmitting supports are the duplicates of each other, each comprisI ing a pair of sprocket wheels i3-43, fitted upon a shaft 44. The shaft at its ends is journaled in hearing blocks 45 each vertically adjustable in a bearing bracket 46 respectively horizontallyY adjustably secured -to the side frames 47 of the machine. Each bearing bracket 46 is supported and secured upon its side frame between opposing set screws elli-48, engaged respectively with lugs projecting from the side frame.

A travel to avoid any This enables the bearin brackets to be horizontallyv adjusted for iiringiiig the upper and lower dies into mesh or registry and controlling the tension of the die carrier runs.

The dies 411 axially have a stud 49 project ingfrom each end which connects with the links 42 forming endless chains at the epposite ends of the dies, and as the construction of each is the duplicate of the other and similar as to both of their opposite ends detail reference will be made in the singular.

The stud 49 is engaged through an en.- larged bore of a collar or bushing 50 (sec Figs. l, 6 and 7) which loose union provides for a slight lateral play of the die axis independentl of the chain or carrier.

An annular flange 51 is formed around the periphery of the bushing 50 as a division wall for the oppositely rojectin links 42, and the bushing and lin rs are heigd in place hy a washer 52 and a screw 5.3 screw-threaded into the end of the stud.

Beneath the return run of the upper die carrier l provide a support or track 5l suitably supported upon the side frames of the machineand upon which 4the roller dies Ll1 intermediate sagging of the carrler run, which would strain the sprocket wheel carrying shafts l4-ll, or exert undue counter resistance to the transmittin motion of the carrier.

The ower dies comprise a plurality of die members 55, directly linked together to form an endless carrier, looping and engaging over sprocket wheels to provide forward and return runs, with the dies comprised in the forward run cooperating with roller dies comprised in the forward run of the upper carrier.

Each of the lower die members is the duplicate of the other, each having ears 56, 57 Vrojected from their lower opposite edges, an referably arranged at or toward the longitudinal ie. ends, with the ears in a staggered relation with res ect to the ears projecting from a next adjacent die. The ears of each individual die at one edge are also in staggered relation with respect to the ears at the opposite edge in the particular design of die so that the dies are universal for assembling.

The ears of two a jacent dies fulcrum or swivel upon a pivot rod 58 with the axis of the rod as a Jfulci'um axis for the dies diametrie with the adjoining die side faces. This abuts and parts two adjacent lower dies along a line diametri@ with the axis of a eoperating upper die, so that such two lower dies are adapted to segmentally, or in profile, register with such upper dies, eacli lower die in the instance herein having a die surface area of one. half of the die oigforming sur-face of its upper companion die. Each lower die therefore comprises two oplll) posite hnlfldie segments enacting with the die sin-faces of two adjacent upper dies. In the process of forming the material into a corrugntion at the receiving end of the cnrriers, assuming that the lower` die a, Fig. 3, advanced to approximately its carrier run pinne, und before tl.\ upper die b has advanced lo the position shown, the materiel entends upproximately in o, straight. line. from the upper surface of the lower die at its reress edge c to the guide roller 40. As the opposing upper and lower dies continue in their forward feeding direction the upper die b will tangenti-ally engage the. upper surece of the material and in its rotary motion about the exis of shaft 44 rollerdke lap the material over a portion of its periphery, and with its, continued motion draw therewith the material beyond the u per die. The' materiel isrth'us initially shaped uround the upper die, and as the upper advances into registry with the cooperating segmental die portion of the lower die a the material is compressed between said meshing die members, and thus retained throughout the run length of seid dies. The forming operation is completed by a, successive lower die .member d movin into registry with` the upper die member in e feeding direction, clasping, embracing and compressing the mnteriol over seid upper die member. The up per and lower dies therefore successively and relatively alternately, and in n staggered relation, engage the material and thereby approximately relieve the material from any Interni or wedging strains which have a tenldencjl7 of tearing or rupturing the materie It will bc noticed that the progressive motion of one die over that of the other opposing die is the result of the dilerence in motion due to the angular .feiocfty of the die when movin around the sprocket Wheels. This ennh es one die to function or transform the material before that of the next opposingr die, so that there is no forcing of the materiel between two edge points. At the discharge or delivery end of the die curriers the dies separate and Withdraw from the formed material in u manner analogous to thnt When they move into registry, which provides e free withdrawal of the molded or formed material.

The hinge. pivot rods 58 project beyond the ends of the dies, as shown in Figs. 5, 6 and 'l'. to serve as n gudgeon forsupporting the dies around the sprocket wheels end upon guides or bridge lbars @#59, (l0-60, along the carrier runs. The lower dies as e carrier similar to the upper dies is transmittingly engaged over sprocket Wheels. The sprocket wheels engage with the projecting ends ot' the pivot rods 58. The projectin ends of the pivot rods 58 are euch provi ed with e sleeve roller 61, (see Fig. 5),

retained upon the rod by e screw- 62 screwthreaded into the end of the rod. A pair of sprocket wheels 3- 63, in spaced relation, and ut the forward end of the carrier are fixed upon a shaft 35 journaled in bea-rin s (il-64, respectively mounted upon the si e frames of the machine. The sprocket Wheels meshing with the rollers 61 respectively rojecting from the opposite sides cf the dies, and the shaft 35 constitute the prime mover for transmitting the lower dies es a, carrier, which in turn transmit motion, through the inlermesh, of the upper und lower dies, to the upper dies es a carrier. The shaft 35, es heretofore described, being rotated by gear 34 fixed upon one end of said shaft. A second pair of sprocket wheels (l-453, at the opposite end of the lower die casing, respectivel meshing with the rollers of the pivot r s 5S and fixed in e spaced relation upon the shalt 65, journaled in the bearings 66-66, mounted upon the side frames.

Y To prevent sagging of the die carrier runs which would displace the lower dies of the forward carrier run, engaged with the die comprised in the forward run of the upper dies, l provide bridge bars 59-59 at the opposite end of the dies, upon which the rollers 61 travel, as shown in Fi 3 and 7. The bars are suitably supporte frein and mounted upon the side frame in any ap proved manner. The dies comprised in the return run of the lower die carrier are like- Wise supported by bridge bers 60-60, disposed at the opposite ends of the dies over which their carrier rollers 61 travel to support the weight of the dies as a carrier end relieve the transmitting shaft of any carrier sa 'ng strains.

he die carriers as a unit through their journal bearings are mounted upon carrie supports 672-6?, extending lon 'tudinal y 'with the carrier runs and tracke u on the side frames oithe machine with t e rear end of said supports connected as a unit and provided with a dependin arm 68 as a Journal bracket for the han wheel screw 69 having its screw shank end engaged with a crossbar 70 as a web connected with the side frames. This provides means for longitudinally adjusting 'the die carriers toward and from the punching and printing machine, for lining up the machine for a proper relative registry of printing, punching and corrugations in the finished pr'oduot.

After each corrugation has been initially formed, for some grades of stock, it is desirable to maintain the formed material under compression between the diesA for e period allowing for e permanent set before withdrawal. This I accomplish in providing tension means between the forward run of the upper die carrier engaging the dies, anl, as shown, at their opposite axle or exis en s.

As a duplicate construction is followed for each end, the descriptlon will be confined to the singular and will comprise a rigid supporting bar Tl suitably supported and extending longitudinally with the cI rier runs. A series of screw ferrules 72 1n a spaced relation engage through the har 71, cach slidably supporting a plunger rod T3 connecting to and dependingly yieldingly supporting a shoe 74 extending longiludi nally with the carrier run. The shoe en- `gages against the links of the carrier chain coupling the upper dies` a. coil spring encircles the plunger engaged between the cud of the ferrule and shoe for exerting a downward Pressure upon the shoe compressingly maintaining the upper dies 1n their interniesh with the lower dies in their forward carrier runs. The ends of the shoes are flared to provide guides over the chain links. Any number of spring actuated plungers may be employed, depending upon the length of the carrier runs or as may be required for applying and maintaining the dies under compression under constant or varying; cie-- grecs for a given length of travel.

At the discharge or Withdrawal end of the carrier. the finished product travels over a table 75 located at a proper elevation with respect to the lower dies for' a free sepa ra tion of the dies from the. corrugations of the finished product.

The dies or forming` mechanism may be inclosed in a casing` 76 for forming the material Within a chamber for hvgrometrie purposes or material treatment beneficial to forming or shaping the material or in molding the same, and` as any process t'or material treatment other than that resulting from the functioning or operation ot the elements of the mechanical combination. may be treated as separate and apart thereof, no specilic mention thereof is made herein.

The relative number and arrangement of either upper and lower dies comprised in a carrier series may be variouslv modified and the upper carrier may be in the proportions of a wheel instead of that ot an endless chain. depending` chiefljr upon the degree of corrngation desired and the use for which the product is intended. The `configuration of the dies' may be variously modified to present any form appropriate for the result to be obtained. and the driving effected in anv convenient manner.

Having' described myinvention, I claim l. ln a device ofthe class described, an eudless carrier comprising a series of dies ot' one class in a .spaced relation. a second endless carrier eomprisingaserics of dies of a second class ii-='lcpendently fulcrumcd with respect to each ether, and a rranged with the die sur faces of )Vicent dies mating with a respective die ol the first class, said carriers having adjacent, forward carrier runs bringing the dies ot' bolli classes into coiipcration. progressi rely intersect ing: cach in a staggered and mating relation compressin;l a traveling web ot' nmlcrial to forni therebetween, and correspondingly .separating said dies, and ine-ans for longitudinally adjusting the dies of the irst class as a carrier unit` for aliningr its dies with the dies of the second class.

2. In a device 'of the class described, an endless chain carrier, a series of dies of one class in spaced relation. each loosely journaled upon and between said carriers, a second endless carrier comprising a series of dies of a second class, each independently swiveled from its next adjacent dies and segmentally mating with two adjacent dies of Ehe first class, adapting said dies to mate and interlock in a staggered relation in a coperating line of carrier travel, means for bridgingly supporting said dies of the second class along their carrier runs, and means for yieldingly maintaining said dies in their interloclred arrangement along their coperative line of travel.

3. In a device of the class described, an endless chain, carrier, chain transmitting wheels for supporting said carrier, a series of dies of one class in spaced relation carried by and swiveled upon said carrier, a series of dies of a second class fulcrumed upon one another to form an endiess'carrier and adapted to swing together and apart as the dies relatively approach and depart from a line of cooperation with the dies of the first class. the` dies of both classes re'atively arranged for bringing them alternately into line of coperation whereby the material to be formed is progressively engaged between saiddies md the relative dies of both classes alternatelv brought into and out of their mating relationship.

4. Tn a device of the class described. an endless chain carrier, chain transmitting wheels for supporting' said carrier, a series of dies of one class `in spaced relation carried hv and swiveled upon said carrier. n series of dies of a second class fulcrumed upon one another to form an endless carrier and adapted to swing together and apart as the dies relatively approach and depart from a line of eoneration with the dies of the first class. the dies of hoth classes relativelv arransved for bringing them alternatelv into line of coperation. said dies of the second class each arranged to segmentally mate with and interveningly between two adiacent. respective dies of'the first, liess. whereby the material to be formed is progressively engaged between said dies and the relative dies ofboth classes alternately brought into and out of their mating relationship.

5. In a device of the class described, an

endless chain carrier, chain transmitting wheels for supporting said carrier, e series of dies of one class in spaced relation carried by and swiveled upon said carrier, a series of dies of a second class ulcrmed upon one another to form an endless carrier and adapted to swing together and apart as the dies relatively approach and depart from a. line of coperatiton with the dies of the first class, the dies of both classes relatively arranged for bringing them alternately into line of coperation, said dies of the second class each arranged to segmentally mate with and intervenngly between two adjacent respective dies of the first class, whereby the material to be formed is rogressvely engaged between said dies an the relative dies of both classes alternately brought into and out of their matin relationshlp, and

means for supporting an( com ressiblymain- 2o Bring the co JOHN N. QUINN.

Witnesses:

CLARENCE B. FOSTER, L. A. BECK.

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