US947288A - Machine for bending metal bars. - Google Patents

Description

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R. ANDERSON.

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APPIJOAHOI TILED 007.31. "OI.

Patented Jan. 25, 1910.

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I g' u E UNITED. STATES PATENT OFFICE.

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T am it y m; t, moves with the worm ,wheel. A nationlic it known that l, ltmairr'haoaaaoa, a ary iaw, l), with a longitudinal way, 0!, ia citizen of the United States of America, and supported one end by a atandanl, d,

reaident of. tinciiinati, county of Hamilton, \Vltlt'll l8 aupliorted by the shell, 0'. l'he o i- State of (thin. have invented certain new postte eiid o the aw, D, ban a downward y and useful Iiu rovementa in .\lnchiuea for yprogecting pin, which extends into an Bending Mtfill llllhi, of which the-following axial bore in thc bending arm, as indii,. -m tt 1 cated in up. 1 and 3. The bending arm, The object of n invention in a machine 5 t. has in ittwo rows of perforations, 0', for bending metal liars in any direction de- 5 which may be engaged by the arm. e, of a Q8 sired, and which may be set to .ntop antowz-baigli l, upon the opposite arm. 6,0! which matically when the bond has reached the del a shoe, 1'. o rotatab y mounted. 'lhe bar to sired angle, in order that u large number of be bent isihid iii the way. (I. whilethe bendaimilurly bent barn may he had in ii short ling nrm, C, in in axial alinement therewith, 1 period of time. I

Referring to the auaniipanyipf drawii the bar. By the rotation of the arm, t, the in which like parts are indicat by aimi ar shoe, if), bends the metal bar. reference letters wherever they occur I will now ducribe the means for actuatthroinrhont the various views, Figure 1 i i n mg thebendms arm, and for automatically :0 plan view of the metal bending machine regulating the cgreo of the bend the bar. embodying my invention, iart of the nia- Meshing with the worm wheel, B iaaworni, chine being shown brokeno I upon lines l--l F, whose ahaft, carriea a fixed pulloy,-] of Fig. 5. Fig. 2 is n rapective view of the and two idle pul eye, i, From the main ulioe which en ages I ie metal bar to impart driving drum, I, ll straight belt, and a 2n the bendin time to it. Fig. 3 in a side croec belt, {one over the pulle a upon the w elevation o the machine. Fig. 4 in a aecuhatt, he lt, f,ia engaged y a finger, tional view taken upon line ir-a of Fig. l. a pro octn (ruin the belt ahitmg arm, Fig. 4' in a die mmaticui view of the Bet, I, is engaged by a linger, p11:- vo iii the ey inder which actnateii the ecting from the belt ahiftin varm, e so it shitting iiicchaiiiiim. Fig. .i is n plan movements of the arms, G,'( are regulated a view of the parta ahown in Fir. 4, but with by the rotation of a cylinder. g, into the the enlarged worm wheel whic i actnatea the groove of which arm, (3, haa projecting a bending arm, ahown in section. Fig. 6 is a pin, F, and arm, G, has projectin a pin, rnpectivc view of the cam for stop iin i7. he groovo, in the cylinder, 9, aa two so he momentum of the pulley u'pon the a in ongitudmal branches, g g, connected by cc of the worm. Fig. 7 in. a detail sectional atranaveree branch,g'. en the two belto, view taken upon line o--c of F ig. 4. Fig. 8 f and f, are upon the idlera, the pine, g is a perspective view of the grooved cylinder and g, stand at the uncturea of the tram foi' regu ting the. bell shilling mechanism. verge part, y',,ot the groove with the lon i- 40 Referring to the ports: the bane. .\,'ot the tudmal parts, and so tliat a rotation 98) machine has anenlurged shallow cylindrical of the cyl nder, 9', iii one direction, aa, for

' holli lll which is made of two ahella, a a, matanoe, in the direction indicated by the con l together at. the flanges, a. ie arrow Fig. 4;, would carry the in, 9, down ah have vertical axial bearm o, a. the tranavom member, g ,of e vo a0 Within the houaing formed by he shells. alto move the belt,f' on tothe wor in; pultoo a, a, ia an enlarged worm wheel B which ley, I, while this same motion of cylinder, haa a hollow ahatt which extenda through 9 would aiiiiply cauae the groove, 9', to the bearing, a. and terminates in vertical travol'aloni the'piii, 9', without moving the teeth, 6. I arm G. moton m a direction tippoaite a0 Thobonding II'lll,-C,lllfl a ahatt,a,wliiob to the direction of the arrow in I. 4', extends downward through the hub of the would cauao the pina, an 9', to reaume worm wheol into the bearing. 0', aa inditheir normal poaitionn, that ia, would carry rated in Fig.- 8. Shaft. c. has a collar,-o', the arm, G, back to the poaition wherein the with teeth, 0'- at its low'ereud which engage belt I, waa on the loose pulle f.

it with the teeth. b.lo that the bending arm, The rotation of the cylin err'o'. ia of- I10 and the shoe, E, is brought to bear against I tler is set-anal n am the end M a lhatt,

monnteil rotatah y in the statnlartltaa am It". Shaft. ti-', t'ttt'l'lt'a at its opposite end a putter. y. whit-h haauraaaing around it. in oppot-ite directions at secured to it atrapa, It, It, which are weared to an actuating lei-er. ll, so that by a reeiprtx-ation of the let-or. II, in one il'n'rrtion or the other the shaft. ti", mar he rotatetl an as to carr either one or t to other of the belts, I, or on to the pulley, j", which Cllttl'l i the hemling arm. (1 to he rotated either in one (lirt-etiuli or the other.

The rotation of the hendin arm is antoamtically stopped by the fol owin means. Shaft, U, carries a gear, y", whici is engaged h a rat-k. K. upon the eml of n lottfitmlinal power .eont rolling arm, K, which as 0 am it hha-lia. K". K. 'llit'll may he ail-- jttatet upon the arm, K. so aa to he t-ltltttlt the hetaliag arm. t. 'l' aarms. .\l, M, have at their inner t'lltla aplit rings, m, m. whieh may he ulnmpetl hy 'mt-nno of when, m, rlttttt'tt in Fig. l anti Fig. -l. an as to regnlate the lmaitiott ol' the arms. .\I. M. relatively to the annling arm. t. lly the relative niljnotmrnla of the nrma. .\l. .l', atnl tlte hlorlte. K. K, the nnmherot tlegreea through trhieh the hrmling arm will more la-lore one of the arms. .\l.-or .\l'. eome in eontaet with one of the Morin. K". K. ia regnlattal. 'l'hr artna. M. .\l. atal th'e Morita. K. Ki. are atljnstetl so that when one ol' the hlorlta' is; atrneh he one of the arm-. It will push the Nllltl hell from the liXt'tl pulley on to tltlt' of T the ltul'lh eontaet 9' la-ake .-hoe. ll. amt earry it against the ltP-luttttl' ot' Fpringsrr. 0''. into eontart with pulley. t". at the neanrnt the ln'lla' are shifted lt'utn mlle,\'. l". n|am either of the itllera. for the pnrpta-e of stopping the mo- Shaft. ti. earriea a ram. y'". to

' Milt set-anal arm for setting What I claim in 1. In a machine for heading metal bar-i the combination of a tixeil jaw for holding the bar to be bent, a heading arm, meant for mounting the bending arm rotatably ailjaneat to t a: jaw. a alum rarrietl by the hemling arm atnl adapted to contact the bar. means 1for adjusting the shoe toward, and awav from the jaw. to vary the bond to be non e in the bar, meana for rotating the arm and an antomatie means for arroating the rotation of the arm at a prrtletermitaal point.

2. In a nntehine for handing metal liar. aml mmpriaing a tixril jaw antl a rotatable hemling arm, aeata fin-anal in the arm, a Z-har adapted to he jonrnaletl in the mats in the arm mat a .-hoe nanmtetl rutatahly upon the Z -imr for eontaeting the bar to laa'nl.

:t. In a maehine tor he'mling metal latra the eomhination ot a tixetl 'an' for llflldlltli the lntl to laheat. a rotatah e arm jotmtalet mljmrent to Mill jaw for engaging and handing the bar, lltt't'ltnttinttth for rotating aaitl arm. a power eoatrolling arm for controlling the operation ot' aaili meohaniama a eontaet tleriee wentzetlqto ant] adjttltatlo relatively. at mid rolatahle arm for ergragpower. eoat ing aml nrtnnting anal ling arm to en! tilt the power at. a pretletennined point. amt a"hrake aetnateil hy Mill powereontmliing arm for retarding the motion ol'raaitl rinatahle arm after the power in cat til t, In n'tnnrll'mefor bending metal ha the eomhitmtion of, a fixetl jaw for hcldin the lair-ti; he beat, a rotatively mount heading m'matl'aeent to aaiil jaw and adapted to engage tie har. meana for rotating said arm. n reromLarm for controlling the operation of Hill means. an atl'natahle eontttrl tlerire l'tlll'lt'tl lay aaitl hem tng arm and adapted to enga atal aetnate aaitl aeooml arm for eontrolli ng the o|agration of aaitl lttentta. a hrahe for eetanling the motion of unit] Ia'ndingnrm amt means actuated by said brake. iltilil'llt'l ANDERSON- Wit nrarm

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