US909341A - Machine for working sheet metal. - Google Patents

Description

I. J. SHIFLEY.

MAGHINE FOR. WORKING SHEET METAL.

APPLICATION FILED JUNE 24, 1907.

Patented Jan. 12,1909.

3 SHEETS-SHEET 1 Zoaac J 1/ r v 1w My I. J. SHIPLEY.

MACHINE FOR WORKING SHEET METAL.

APPLICATION FILED JUNB24,1907.

Patented Jan. 12, 1909.

3 8HEBTSSHBET 2.

Yeah M .lraac JM@ wi l I. J. SHIPLEY.

MACHINE FOR WORKING SHEET METAL.

APPLIUATIOH FILED JURI124, 1907.

:1? ml 10 T 3 BHEETSSHBET 3.

f I Z Z/ 672 [Jane Patented Jan. 12, 1909.

W a d r and declare the followin ISAAC J. SHIFLEY, or CHICAGO, ILLINOIS.

' macrmvn ron wonKme smear METAL.

Specification of Letters Patent.

Patented Ian. 12, 1909.

Application flledlune 1907. Serial No. 880,492.

To all whom it may concern:

Be it known that I, ISAAC J. SHIFLEY a citizen of the United States, residing at Chicago, county of Cook, State of Illinois, have invented a certain new and useful Im rovement in Machines for Working Sheet 1 etal, to be a full, clear, and exact description 0' the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference bein had to the accompanying drawin s, whic 1 form apart of this specification.

y invention relates in eneral to the art of shapin sheet metal and partieularly to a machine or giving to strips of sheet metal any desired configuration and forming thereon a head or beads; In my rior patents 759,480 and 803,85 9, I have lscl osed machines oi this general character, the particular machines illus trated being adapted to form eaves-troughs with one or both edges headed and in one of its aspects the present invention may be regarded as consisting of improvements in such prior machine.

. The primary object of my invention is to provide means whereby the beads, in devices of the character specified may be quickly and easily formed in such a manner that they shall be of uniform size and shape through out their is th.

A further b vide means whereby head or beads of any'desired cross-section may be p re ssively f rmed onthe sheet metal devices uring the aping of the devices, without danger of failureon the part of the bead forming devices to form a perfect head.

A further object of my invention is to rovide a simple and compact machine w 'ch will operate quickly and positive] to give to strips of sheet metal an desire shape and provident one or bo'h dges thereof a head of an' desired configuration.

A ihrther object of my invention is to provide meansfor progressively forming a strip into a head or tube of any desired cross-section irrespective of whether the head or tube is formed as a se arate-device or as a part of some other device.

Specifically s caking, my invention com- -prises rolls for s raping a strip of material so as to give itthe desired form and 'at the same time start the bead or beads by bending one ject of my invention is to pro-.

or both of the edges of the strip backwards so as to produce a flange at one or both sides of the stri s; together with a second series of rollswhic progressively act upon the flan e or flan es to produce the head or beads of tEe desire configuration. The flanges need not necessarily be formed by the main rolls but this is the most convenient way of forming,

them. Associated with the second series rolls is an elongated mandrel, the cross-section of which gradually diminishes so that as the strip of material passes through the machine a flange is rogressively formed and is then progressive y bent about the mandrel so as to form it into a tube of gradimlly diminishing diameter. The shape of the bead defiends, of course, upon the shape of the sma er and of the mandrel.

My invention will be more fully understood and its various objects and advanta es will be more clearly ap )arent from the ollowing detailed description taken in connection with the accompan ing draw' The various features of nove ty which c iaracterize my inventionwill however, be hereinafter pointed out with particularity in the claims.

In the drawings Figure 1 is a plan view of a machine arranged in accordance with a preferred form 0 my invention, a part of the machine which may take any usual or preferred form omitted; Fi 2 is a section taken on line 2-2 Fig. 1 loo ing in the direction of thearrows; Fig. 3 is asection taken on line 3-3 of Fig. 1 looking in the direction.

of the arrows and showing only the two cooperating rolls and a strip of material between them; Fi 4 is a section takcn on line 4-4 of Fi 2; lg. 5 is a section taken on line 5-5 0% Fi 2; Fig. 6 is a section taken on line. 66 0 Fig. 2; and Figs. 7, 8, and 9 are details. a

Referrin to the drawing, A and A indicate the 'si' e frames of a machine having a base A of any suitable form. Mounte'l upon shafts journaled in the members A and A are grou s of rolls B and other groups of rolls C. Ticse rollsnre driven in an suitable manner, as by means oi driving u leys D and D and trains of gearing E. lhe particular arrangement of supporting those rolls and of driving them forms no part of the presentinvcntiou and may be varied in any way desired.

Each group of rolls B V shown.

consists of three similar rolls 1), b and l) two groups of rollers I and 1; these rollers or, in other words, the machine is adapted to i being arranged on horizontal axes, the one operate on three strips at a time. Although i above and tlie other below the mandrel. this is a convenient arrangement, since wide F The depth of the mandrels is slightly less at sheets may be run througi the machine and l this point than immediately adjacent the cut into stri )8 thereby, it will, of course, be l rollers H and therefore the lower ends of the understood [Hint my invention is not confined flanges are carricd'still further beneath the to machines opt-rating upon a plurality of mandrels. The molding ol' the llanges is strips simultaneously; and in describing the I efi'ected by the rollers l, the rollerslserving present invention reference will be had to to hold the material firmly down upon the only one set of the triplicate mechanisms mandrels and preventing the'slipping or The rolls B, the mandrels F with springin" thereof out of )osition. The rollwhich they cooperate, and all of the other ers I an 1' are'prel'erah y arranged as close parts to the left of these rolls may take any as practicable to the rollers [I in order that usual or preferred form. The present inthe material may he firmly supported adjavent on has to do with that portion of the cent the rollers l and 1. After leaving the maritime to the right of the rolls B, namely rollers I and l, a further set of rollers H is with the completion of the trough or other I reached; these rollers being exactly the same dev.ce a l'tcr it has been partially formed as the rollers 11, except that they are shorter and provided with one or nnre dmvnwai'dly on account of the decreasing depth of the project 11; llanges at the edges thereof. mandrels. It will be seen that the rollers H In Fig. 3 there is sh an the preferred serve to still further bend the flanges around shape of the (Xdtlllt ll ht hand at of rolls the lower edges of the mandrels. The next. for use in a machine adapted to form a set of rollers to he encountered are the rollers roug in cross-section and i and 1, corresponding to the rollers I and l l semi-circular havm cyl ndacal he ds at each edge. I, and being exactly similar thereto. The

rollers l" and I G nnhcatesthestrip of material iihich is however, than the rollers l and 1, because of being,' operated rpon; and, it will b seen,

that. the edges thereot'have been bent dow the decreasing depth of the mandrcls and ward over the in ndrels to as to to in de they act to mold the inturncd ends of the prndmg tlangcs y. ln this condition the flanges still further inwardly and upwardly. strip approaches the second set of rolls As the stri continues through the machine These rolls are. )relerably arranged at some it. passes other rollers H to 11, res ectivelv, dis anoe i om the lirsl set oi rolls in order corresponding to the rollers 11, TN 1 to I are arranged closertogether,

l l that the flanges may be partially formed 1 respectively, corresponding to the rollers I into beads before the strip reaches the sec- 1 am I; the one set ofrollers becoming gradu- 0nd set of rolls. ally shorter and shorter and the other set" The mandrels F may be circular in crossl gradually approaching each other 'as the a I depth of the lnandrels'diminishes.

is shown the condition of the trough -a passing the rollers H. the flan es have been bent so as to form complete to es and it creasing the number of the small rollers and varying the size of the ends of the nmnd rels In Fip. 6

be still further. continued so as o give desired degree of stiffness.

beads having any ier and using sufficiently section. After passing the lastof the fol near enough toget the strip is engaged bysmall rollers I on large numbers thereof, theformation'of the ranged on vertical axes 'ust outside. --'.the beads will be efi'ectd smoothl and posimandrels so that the anges are ssed tively so that all of the heads will be of. unifirnlly against the mandrels. Thejtgo le'i's H form size and all dan or of spoiling a trough are so a taped that they also press upon the on account of an i -shaped bond will 0 material passing across the upper 3 do of the obviated.

mandrels and at the same time bend t;he ex,- :Since the bed treme lower ed es f fb 'fianges beneath the ceivedjts final s m 0 when it lower edges'fo the mandrels."' 'Thus ithei Bythqsecond soto flanges are per molded. about the: rolls beingarranged; however, to not solely mandrels n suchla1 man crtgat fthere'is-no one the dyportion of thetroughs soas to dan 'erof s or istor 'ngfthe, metal gra uallyincreasethe cun 'atnre theneof.

of t e troug in anyway. This operation is. n the machines shown illustrated in Fi g4. y prior atents these latter rnlls are provided Irhmediatelyi gllowing the rollers H are with stages for aiding-in the formation of It will be seen that,

will be evident that by inthe recess of rolhng the metal of the'fl'an es could Furthermore, by lacing the small rollers brats tron h hesnot ref l eaves the rolls Trolls Cisprovided, these in 'i'ny' hfti-Fesaid 'drels.

ends eccentrics h and h.

; brackets It so that the beads, but I refer to form the beads wholly by means the auxiliary rollers after the troughs have been flan ed; and therefore the rolls 0 need be shape only so as to enga e the body portion of the troughs.

t is, of course, not essential that the flange forming devices be arranged in the exact rolation to the two sets of main rolls as indi cated in the drawings but this arrangement is, the preferable one, since the machine may be made of a minimum length and at the same time all of the forming devices may eri'orm their functions efliciently without interference with each other.

It will now be understood that a blank stri of'material is inserted into the machine ancPas it is drawn along by the various rolls ,it ispartially formed into the desired shape and its edges are progressively folded down over the converging mandrels; thereafter the dependin edges are pro ressivel molded into the desired shape am the b0 y ortion of the stri is molded and set into t e nal form in which it emerges from the machine.

The smell bead-forming rollers need not be driven by power but maybe revolubl slipported in such relation to the mandre s that the ,strip, as it is drawn through, causes them I In order that the proper pressure i to rotate. may be obtained, the rollers are preferably adjustably supported whereby they may be carried toward or away from the mandrels as conditions may require.

A convenient arran ement for supporting the rollers is to provi e channel-sha ed subframes A, each of which is arrange parallel with and incloses one of the tapered man- The rollers H to H may'conveniently be supported in brackets h which are secured ;in any suitable wayzto the webs of the members A. In order that these rollers may be adjusted laterally with respect to the mandrels they are preferably mountedupon shafts such as h which have at their opposite These eccentrics fit into circular o enings. h and h in the rotati the eccentrics the axes of the rol are are s 'fted laterally with respect to the mandrels. The rollers may bcretained in their adjusted together.with their eccentric bearings, may

' besu ported fromthe top) flan es a. of the.

' orted a 'o've the mandrelsin him are i which ave stems i projecting'n war y through {'the flanges a.

' tively Nuts '8' an i winch respecengage the upper and lower sides of the anges a servo to adjust the hangers into any desired position. The hangers are ositioris, by means of set-screws hf. ,The e site h,

prevented from rotating by bein ehgaged m slots i in brackets i supporte from the flan es a as clearly shown in Figs. 2 and 5.

'1 e rollers I and the other rollers corresponding thereto are preferably supported in such a manner that they may not only be adjusted vertically as are the rollers I, but so that they may be tilted slightly so as to move them within a small angle about the lower edges of the mandrcls. To this end each roller may conveniently supported upon a shaft k which is arran ed to be vertically movable within a slot in a bracket k; the bracket k' being supported from the lower flange a of the member A. Two rods, k and k, respectively, sup ort the shaft 7c from the flan e a. is secured to the em of'the shaft opposite to that on which the wheel is mounted; while the other rod passes through an openin k in the shaft at a point near the .wheel. he opening is so arranged that the shaft ma rock about a horizontal axis on this rod. t

will be seen that the wheel may be vertically adjusted by adjusting the nuts k and k on the upper ends of the two rods respectivel by equal amounts. 'If it is desired to tilt e roller slightly, either of the rods may be adjusted vertically inde endentl of the other, thereby causing the shaft of t e roller to be oscillated slightly so as to bring it into any desired. posit on with respect, to the lower edge of the corres onding mandrel.

While I have 'escribed in detail a preferred construction and arrangement of (parts for carrying out myiinvention, I do not 'esire to be limited-to t s particular construction and arrangement, since in its broader aspect my invention contemplates various other mechanisms and devicesas will be apparent from the definitions of my invention constitutingihe appended claims.

Having now fully described my invention, what I claim as new and desire to secure by Letters Patent is:

'1. In a machine for formin a trough with a beaded edge, rolls forpartia y shaping the trough and bending one edge backward so as to form a flange, a ta cred mandrel adapted to pass between the 0d of the trough and the flange, a plurality o rollers distributed lengthwise of and about the mandrelfor progressively" rnolding said flange about the mandrel andiolls for completing the shaping of the trough.

2. In a machine for shaping a strip of material, and forming a head at its edge, a plurality of rolls for gradually shaping said strip, a mandrel, meanson said. rolls for bending one ede of said strip over the mandrel to form a ange, a second mandrel havin a rogressively decreasing cross-section, an r0 lers cooperating with said latter mandrel to mold the flange into a behd having a progressively decreasing diameter.

One of t 'ese rods.

3. in a machine for shaping a strip of metal and fUIllllilg a bead thereon at one edge, a set of rolls for partially shaping said st rip, a mandrel, means on said rolls for bending one edge 01' said stri I over said mandrel 10 form a flange, a second set of rolls for compleling' lhr: shaping of said strip, a second mandrel having: it gradually decreasing cross- Section, and means inde iendcnt of said sec and set of rolls for lnolc ing said flange proressivoly about said mandrel as the strip is (1 through the machine.

4. In a machine for forming a bead at one ed do of a strip of material, means for bending one edge of said strip laterally to form a Flange, a mandrel of progressively decreasing cross-section, means for moving said strip along said mandrel, and rollers distributed along and about said mandrel for progressivel nmldinp; the flange so as to cause it to conidrm t0 the shape of the mandrel at-vari we oints throughout the length of the manih'el.

b. In a sheet-metal working machine, a tapered inandrehhaving its larger endof greater width than thickness, rollers distrib uted about and along the mandrel, certain of the rollers engaging an edge of the mandrel, and means for adjusting said latter rollers so as to cause them to assume various angular positions with respect to said edge.

6; In a machine or s 4 metal and forming a bead thereon at one edge, a lurality of rolls arranged one in advance oi the other for changing, the shape of said stri a tapered mandrel extending along said rolls transversely to the axis thereof, ands plurality of rollers arranged about and.

raping a strip of along; said mandrel for bending the edge of pered mandrel extending along said rolls transversely.. to theaxis thereof and U1 position to pass between said flange and the main portion oi the strip, and a plurality of rollers distributed along, and about the mandrel for progressively moldin said flange about the mandrel as the strip is fed through the machine.

S. In. a sheet metal-working machine, a. tapered mandrel having its larger end of greater depth than thickness, a plurality of rollers distributed along the top edge of said mandrel to hold a strip of metal firmly against the mandrel, a plurality of rollers distributed along one side of the mandrel and arranged to force the strip against that side of the mandrel and bend it progressively around the under side of the mandrel, and a plurality of rollers arranged along the bottom edge of the mandrel for forcing said strip a' ainst the mandrel and bending the free e( ge thereof upwardly along the side of the mandrel and toward the top ed In testimony whereof, I tion in the presence of two witnesses.

ISAAC J. SHIFLEY. Witnesses:

HARRY S. GAITHER, RUBY V. NASH.

pa. sign t iis speoifica-

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