US1552559A - Calendering machine - Google Patents

Description

Sept. 8, 1925. 1,552,559

G. i... HAMMOND ET AL CALENDERING MACHINE Filed July 6, 1922 3 Sheets-Sheet 1 Eg, j

Sept 8,' 1925.

G. L. HAMMOND ET AL CALENDERING MACHINE Filed July 6. 1922 3 Sheets-Sheet 2 IN VEN TORS ,Afa/mond and BY VMWW ATTORNEYS.

Sept. 8, l19125.

G. L. HAMMOND ET AL CALENDERING MACHINE Patented Sept. 8, 1925.

unirse stares 1,552,559 PATENT QEFQ.

GUY L. HAMMOND eNn winnen marrones. er nmnsnronr, coNNnc'rroufr, AssrGNons To THE BLACK noon ce., or BnIDenPoR/r, CONNECTICUT, a con- PORATION 0F CONNECTICUT.

CALENDERING MACHINE.

Application filed July 6, 1922. Serial No. 573,218.

T 0 all whom t may con/cern:

Be it known that GUY L. HAMMOND and WILLIAM Nici-loisirs, a citizen of the United States and a subject of the King of Great Britain, respectively, and residents of Bridgeport, in the county of Fairiield and .State of Connecticut, have invented certain new and useful Improvements in Calendering lVachines, of which the following is a specification.

This invention relates to improvements in calendering machines, and particularly ma.- chines of this character for shaping, forming and calendering material such as rubber composition, asbestos and the like, into strips, bars or sheets, for instance, like that employed on brake linings or sheet packing, asbestos or the like.

An object is to provide a machine in which the material may be-shaped or finished with a high degree of accuracy, as todimensions and uniformity, and in which the density and surface desired may be maintained or regulated to any desired standard.

A further object is to provide a calibrated gauge, by which the accuracy of the calendering may be adjusted and maintained within the closest limits, and to permit of the adjustment of such means as desired, to accommodate and calender sheets and strips of varying thicknesses and Widths.

Another object is to enable the adjustment and setting of the machine so asto insure the reliable production of materials of definite and standard dimensions and uniform quality, further to provide any desired degree of compression upon the stock by the calendering rolls and particularly to adjustably position the several rolls in cooperating relation, to the end that the strip produced will have both perfect edges and side faces.

Other objects are simplicity, freedom from parts liable to get out of order and the easy removal and replacement of wearing elements.

TVith the above and other objects in view, an embodiment of the invention is shown in -the accompanying drawings, and this em- Fig. 1 is a front elevation of a calendering machine embodying the invention;

Fig. 2 is an end view thereof;

Fig. 3 is a fragmentary detail view, partially in front elevation andV partially in vertical section of the upperA calendering roll, and the mounting, driving and adjustment means therefor; and i Fig. 4f is a horizontal sectional view along the line H of Fig. l.

Similar reference characters indicate corresponding parts throughout the several iigures of the drawings.

`The machine, according to the present embodiment of the invention, comprises a` rectangular bed-plate 10, supported upon end standards 11 and mounting a pair of vertically-disposed bearing frames v12 and 13, braced and connected at their upper ends by a tie-beam or brace 14.

An electric driving motor lvis mounted upon a support 16 that, may be secured to the end standards and in spaced relation to the floor. The driving shaft 17 has a bearing in the end of a housing 18, bolted to the standard 11 at one end, the shaft being provided within the housing with a bevel pinion 19, meshing with a bevel gear 20, mounted upon a vertical shaft 21; The shaft 21v has a flanged thrust-bearing ,adjacent its reduced end 22 that is journaled in the base of the housing, the bore of the bearing being bushed, as at 23. This shaft is also journaled in a bushed bearing portion`24V in the top of the housing and includes a` collar 21 that is positioned against the housing and forms a thrust bearing against any lifting tendency of the gear 2O and its shaft. The housing is of the two-piece separa-ble type, to permitaccess to the gears whendesired.

The upper end portionof the shaft 21 is connected by a coupling 37 with a Worm shaft 37 which is provided with a pairof spaced right and' left worms 25 and 26v (Fig. 2). The worm 25 is enclosed in a cylindrical housing 27, having an integral gearenclosing extension 28, ,and also provided with integral plate portions 29 and 30 bolted to the frame 12. A removable cover plate 81 is mounted upon the outer side of the eX- tension 28; and at its inner side, there is provided a bearing portion 32. in which is'journaled one end of a horizontally-disposed shaft 33, provided Within the housing with a worm gear 34C, meshing. with. the lower worm.25. ylllhegother'end ofthe'y shaft 33v is journaled in a bearing portion 35 of the frame 13, and adjacent said frame, and be-f tween=it andthe Hamel-3, thereV is mountedy thereon an -adjusta-blelowercalender roll" A tubular. post27a having a` flanged lower l endportionfis secured-to the. lower end ofthe housingg27 byrmeansofscrews27b, and ex tends-:through and above. said` housing to forma guideupon which. a-second cylindrical"v housing 38 is,.slidably mounted. This post also: servesfas. a: bearing. and inclo'sure for the worm shaft 37 a. andworms 25 and26.- A. gearfenclosing.. extension 39 isl formed upon. oneside ofthe hou-sing'38, being enclosed at its outer side by avremovable coverplatelO. A slide-block.41. forming anVV adjustablebe'aring is secured'v toithe inneri side off theextension 39 byy screws 12and is vertically movable ina. slideway 13 pro-vided inftheframe12.l Guide flanges 415and46 yare formed Aupon-the slide block, which engage the lforward edgesof. the slide-way, while removable.b guide platesA 47 and 48- are securedltothe inner. side'ofthe block 49, and engage. the inner edges of the slideWay.

Alcal'ender roll'shaft 50 is j ournaledat one `end. in the4- Slideebloclr 41 .being provided at'its. projecting reducedextremity 51 with a worm. gear 52,that'meshes with. and is driven by the. worm 26. The other end of the shafit()A isnjournaledina slidefblock 53, guidedv toliave;verticalmovement in. a slideway 5.4i oflth'ei frame13.; f

An; upper vertically adjustable calender roll'. 5.6 is .adjustablymounted: upon the l shaft 5.0;? in: superimposedfandf adj ustabl'y` spaced relationto the roll` 36positioned therebene'atli.. Both the rolls. 36 and 56' are adjustable:lengthwise upon. their respective shafts by .means ofthe shafts being.V threaded as. at Mylandfprovided with. nuts. 55 which are threadably mountedupon the portions 44; 4of the shaftand are.. set againstthe sides ofthe rolls.. These roll'sare idriven to. cooperate as surfacing andcom'pressing rollstheir spacing-X b'eing. .adjustable through.` raisingE or lowering the. upper roll 5.6, .by meansipresently to. bede'scribed.

` edge-.fonming calendering. roll` 57 spa-ns: the z space..between.` the. rolls 36and 56, engagingl the: side surfaces.- thereof, and is mountedupon a. vertical shaft .58., ysupported inf laterally disposedl'bracliets v59 and. 60 secured'. to. tha frame. 12;V A'. bevelgear16l. is elevated linea-the lbwen end; ofi the Shaft 55.. e bevel? @tive geerf 62.

securedupon the ylower rollshaft 33, todrive the roll 57. at a surface speed corresponding to the surface speed of the rolls 36 and 56.

The upper calender roll 56 is adjustable vertically, byl means ofy a pairy ofV vlifting screws 63` and 6&1,v threadedy to" engage the body of the gears/'71' and 72 mounte'di'in the bevelfgears76 and-7 7 mounted upon a hori.-

zontalz shaft 73 rotatably. Vmounted in bear; ing.,A bracketsV 74.. and 7 5, abovethe brace' beam. 14.-. This shaftff 7.3 is provided at its outer end with a'removable crank 78. adapt ed for manual turning of theshaft. which operation through the` bevel. gear and. screw connections raises or lowers the calender roll. 56,. depending upon the. operationqof turning..

rPhe shaft 73 hasmountedthereon a disk 793 andv is provided.` at its'r periphery with calibrations over which ai fixed -indeX-80, mounted upon the brace-beanr 14, is disposed to indicatefthez'degree of turning of theshaft,Y and thereby,jthe relative spacing of. the. calender rolls andv consequent thickness of product when rolled.A

A support 81V is mounted upon the frame 13 anda standard 82,.being provided along its upper. surface witlr a longitudinal slotted slideavay 83., inwhicha slide 84 is'disposed andretained by means of removable retainingstr-ips85 and 86. A feed screw 87 is se cured to the headVand extends. throughl a longitudinally fixed nut 88., rotatably mounted in.- a bearing 89y ofy thel support 81, a Y

graduated crank-wheel 90 being fixed to thenut` to permit its. manuall turning. AV pointer. 67 is securedto the slide and-isdisposed toward `the crankwheelinpositionto bereadin connection withthe graduations upon. thewheel 96 to. determine the proper adjustment for certain widthsofstrips to be rolled... Y A

Al. plate.91 is-secured ltothe head 311 and extends inspacedy relation above the projecting baseportion ofthe slide and formfing with said portion a support for thein.- tercihangeable.y horizontal.y roll A that. isremovably positionedinthe. recess.92\,.the ini vpin.9.3 is. positioned to. form.r a bearing upon which rolls A fof i diiferentsize and thickness are removably supported. to. -ca1 e1i1.-l2f11?y Strips ner. operativeedge portion. of saidroll open ating between the before mentioned calen-v of b-rake lining and other material of different thickness and widths, the pin 93 being held in position by means of a set screw 95, as shown in Fig. 1.

The roll A is interchangeable with similar rolls of different thicknesses and as the degree of its insertion between the rolls 36 and 56, permits of the production of any desired width of strip or sheet it is possible by changing this one element of the machine to produce strips or sheets of any de.

sired thickness.

In operation, the strip or sheet of material which may be of any suitable compressible material, as rubber composition, asbestos, or the like, is continuously fed through the pass, formed by the upper and lower rolls 36 and'56, and the edging rolls 57 and A, thereby compressing and forming it.

The product of the machine is uniform, as to finish and density, and its 'upper and lower surfaces and edges are calendered to an exact standard or uniformity. The formation of burs, fins, or other irregularities is entirely prevented. The parts are such that they will not readily get out of order, they may be easily dismounted and replaced and their adjustment may be brought about with the greatest precision.

I have illustrated and described a preferred and satisfactory embodiment of the invention, but it is obvious that changes may be made therein within the spirit and scope thereof, as defined in the appended claims:

l. In a machine of the character described, a pair of spaced calendering or forming rolls, adapted to receive a strip of work between them, and an edge calendering or forming roll having its periphery spanning the space between the first rolls, and engaging the side surfaces thereof, and a second edge forming roll having its edge disposed between the peripheries of the pair of spaced rolls and adjustable between them and toward and from the first edge forming roll.

2. In a machine of the character described, a pair of spaced calendering or forming rolls, adapted to receive a workpiece between them, means adapted to simultaneously and equally rotate said rolls in opposite directions, an edge calendering or forming roll spanning the space between said first rolls and engaging the side surfaces thereof, and means for driving said edge forming roll at a surface speed corresponding to the surface speed of said first rolls.

8. In a machine of the character described, a pair of spaced calendering or forming ro-lls, adapted to receive a workpiece between them, means adapted to simultaneously and equally rotate said rolls side surfacesthereof, means for adjusting f one of said Vrolls relatively to the other to vary their spacing, and-meansidriving said edge forming means at a surface speed equal to t-he surface speeds of the forming rolls.

5. In a machine of the character described a pair of spaced calendering or forming elements inc uding a roll, adapted to receive awork-piece between them, one of said elements being fixed against bodily transverse movement, edge-forming means having its surface extending between the perpheries of the elements, andl means for moving said non-fixed firstf element toward or away from said fixed element, andl means interchangeably Vmounting' the edge forming means and providing for its ladjustment between the rolls. 1

6. In a-machine of the character described, a pair of spaced calenderingor forming rolls, adapted to receive a work-piece between them, parallel shafts supporting said rolls, spiral gears upon said shafts, a drive shaft at right angles to said parallel shafts, and right and left worms upon said drive shaft meshing with said spiral gears, an edge calendering roll spanning the space between the said first rolls and engaging the side surfaces thereof, and gearing between said edge calendering roll and one of said first rolls for driving said edge calendering roll at a surface speed corresponding to the surface speeds of said first rolls.

7. In a machine of the character described, a pair of spaced calendering or forming rolls, adapted to receive a work-piece between them, parallel shafts supporting said rolls, one of said rolls being adapted to be adjust-ed toward or away from said other roll, spiral gears upon said shafts, a drive shaft at right angles to said parallel shafts, and right and left worms upon said drive shaft meshing with said spiral gears, one of said gears adapted to roll upon its worm during adjusting movement of the roll connected therewith, an edge calendering roll spanning the space between the said first rolls and engaging the side surfaces thereof, and gearing between said edge calendering roll and one of said first rolls for driving said edge calendering roll at a surface speed correspondingto the surface speeds of said firstA rolls. Y'

8l In a machine Iof thefcharacterdescribed, a pair of spaced calendering or forming rolls, adapted to receive aV work-piecebetween them, parallel shafts supporting said rolls, one of said rolls being adapted to be adjusted toward or away from-said other. roll, spiral gears upon said shafts, a drive shaft at right anglesto said parallelshafts, right' and left worms upon said drive shaft mesh. ing with said spiral gears, one of said'gears adapted to roll.- upon its worm, during adj usting` movement of the roll connected therewith, and housings for said worms and gears, one ofsaid housings being-movable with the adjusting movement ofv said roll, an edge calenderingroll spanning lthe space between the said `first rolls and'engagingthe side surfaces thereof, and. gearing between said edge calendering rollv and one of said first rollsfor driving saidedge calendering rolllat a surface speed corresponding to the surfacespeeds ofsaid 'first rolls.v

9. Ina machine of theI characterdescribed, a pair of spacedcalenderingor forming elements, adapted to receive a work-piecebetween them, an edge. calendering or formingelement having its surface spanning the space between said first elements, edge cal.; endering or forming; means. rotatably supp'orted'between saidelements, and means for shiftingsaid last means to Avary thespace between said elements and said edge forming' elements.

10. In a machine. of'V the character dev scribed, a plurality-ofspaced calendering, or

forming elements, adapted to receive a,workpieceL between them, edge` calendering or forming means, Van adjustable supportthere-z fore, and a pair of cooperating separable members. carried by said support andadapted to rotatably mount said last means.vv l

11;.In a machine offthe/ vcharacter def scribed,V a pair of spacedcalendering or forming elements each including aroll, and

adapted to receive a worlrzpiece' between them, edge forming means at theside of said f i rolls, means for rotatingsaid elementsand forming elements each including` a roll, t

means for rotating said elements and with the-m the rolls, an edge' forming means at one side of the rolls, and7 meansto drive the edge-forming' element from onevof said call endering or forming elements and at the same rateofsurface `speed as4V that of the rolls. Y' f Signed at Bridgeport in 1 the county of Fairfield and State of Connecticut this 24th Y day of'June, AD., 1922.

. e-UY L. HAMMoND.-

WILLIAM NICHOLAS;

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