Патент USA US2092480код для вставки
Sept. 7, 1937. ` H, H, TALBOT 2,092,480 ROLLING MIL-L FEEDING APPARATUS Filed Jan. s, 1954 s sheets-sheet 1 203 ï 1_ __-_.» ;_~\ ¿'69 »l ¿267 '265 'l 266 246 0 I I Q . : 4a _Q52 2F53 2/2 ul 4MM _1_ :l illn‘înh‘l ___:P “nä ß \ , ‘ f ’ “ 206 243' 2.54 » I g: s. .F î. y " ‘,n «è 3 122g £3/ r 2.56 I' O l 32 ‘u 2.34 sept. 7, 1937. . H_ H TALBOT ROLLING MIL-L FEEDING APPARATUS Filed Jan. 8, 1954 2,092,480 - y s sheets-smet 2 WITNESSES ' INVENTOR MW . Sept. 7, 1937. |-|_ H, TALBOT 2,092,480 ROLLING MILL FEYEDING APPARATUS ’ Filed Jan. s, 1934 mnìnrïü‘nín n nn 5 sheets-sheet 3 Patented Sept. 7, 1937 l 2,002,480 ` UNITED STATES rrfrrzNTí ` OFFICE ” ¢ 2,092,480 ROLLING MILL reEpING APPARATÚS Howard H. Talbot, Pittsburgh; Pa., assignorkto United Engineering & Foundry Company, Pittsburgh, Pa., a corporation of »Pennsylvania Application January s, i934, sei-iai Nd. '105,701 13 Claims'. This invention relates to an improvement >in rolling» mill equipment and more particularly to apparatus for feeding relatively thin flexible stock into a mill and tensioning itwhile it is 5 (ci. ¿s0-i3) ~ „ ' vcordance with the invention; Fig. 2 a front ele vational view of the same apparatus; Fig. 3 a plan view and Fig. 4 a horizontal _section taken on the line IV-IV, of Fig. l showing the feeding In the operation of the more modern rolling and leveling apparatus removed. f Referring in detail to the drawings, the numer mills; and especially mills of the backed-up type _als 20|! and 202 designate the working and back being worked by the mill. ' _ » in which relatively small. working rolls are em- ' ing rollsv respectively of a rolling mill of the ployed,` difûculty is -frequently. encountered in 10 entering the material between the working rolls. backed-up type, which is _the ’E_Ype of mill more particularly contemplated by this invention, al' 10 `This is due principally, to the f_act that the bite angle of the small working rolls is _such that- it does not provide sufficient grip to Areadily pull »though it is not necessarily so limited in its use.v the stock into the rolls byv mere engagement with between which the feeding- apparatus designated ' it. Alsofbecause-of the nature of the bite angle,_ if the end of- the lstock is 'at all deformed or These rolls, as shown, aresupported in the cus tomary manner inra" pair of »roll housings 203, generally by the numeral 200 is in the most part 15 located. \» ~ ' ` - In the single embodiment -of 'the invention il__-_l 'lustrated this feeding apparatus comprises a mill. vIn fact, such mills 'are incapable of pick ing up -stock which is as thick as they are capable ‘ main stock and roll-supporting -frame 205 which warped; it makes it diiiicult to enter it.` in the of eiîiciently and effectively Working without the . stock being positively forced into them. Because of this and because of the lack of suitable feed ing apparatus__for such mills in the past they have inthe most part been operated 'very inem- ‘ cieritly'. . With these difficulties and the desirability of ’ tensioning the material While it isbelng rolled in mind, it_ is the primary objectvof this inven tion,l generally stated, to provide' an improved 30 . and novel form of mill feeding'apparatus which is capable of 'positively feeding into the Working rolls of a rolling mill of the type employing small Í working rolls material thatis too thick to be entered into the roll pass formed thereby with is of an' oblong shape and mounted to ride on a 20 pair of bars orrails 206 attached to the inner faces of the roll housings 203. For receiving these rails this frame is provided with a pair of oppo sitely disposed grooves 20l in its side walls which adapt it to be reciprocated ba'ck Jand forth in 25 and opposeduto the ‘direction _of travel of the stock into the mill for feeding purposes.v In the upper central portion of s_uch frame there is mounted in suitable bearings 200 a plu rality of spaced transversely extending rolls 200. 30 Opposite these there are se'cured front and rear stock-supporting aprons Íor tables 2i!! and 2l2 which are preferably made of some suitable soft material, suchasbrass or wood, and projected out the application >of a positive pressure .and beyond the ends of the` frame `205. The forward 35 which is also adapted to tension the material 'of these aprons, as will be described more in- de wtail hereinafter, is 'employed more particularly after it is engaged in the mill. . ` Another object is to provide an apparatus of to guide the forward ends of the stock into the this character which is adapted to maintain the -roll pass formed by the working rolls 20H’ of the stock in proper alignment as it is being rolled mill and the rearward one» to guide the stock 40 into- the feeding apparatus or over the main and'also tensioning it without in ‘any Way mark stock-supporting frame 200. _ v _ ing or mari-ing its surface._ Above this main stock-supporting frame 205 A further object is to provide a combined there is provided a clamping frame 2l3 which sticker and-dragwhich is capable of also _straight consistses'senti'ally of a pair vof side walls 2id 4'5 ening the material and at the same time oper ating to feed new: pieces of stock into the mill and a plurality of cross ribs 2l5 so fabricated at a very rapid speed. _ ._ '_ A as to form a rigid structure similar to the main ' A still further object is torprovide an appara tusembodying the aforementioned advantages which is simple andsturdy of construction, de pendable in operation and capable of being readilyJapplied to a `mill in operation as well as one under construction. . _ ,_ frame 205. On the bottom of this latter frame directly above the rolls 209 located in the center of the lower frame there is provided a pair of 50 similar rolls „2HE which are mounted in suitable bearings 2 i l with their axes disposed midway be tween the axes of the rolls 200 so that they will >form with the latter rolls a stock-engaging and various other novel features and advantages oi' leveling pass for resisting the movement of thel 55 the invention, will be apparentyvhen the follow- . stock through `the feeder to thereby tension it ing detailed description is read' in conjunction afterit is engaged in the k_mill and straighten it . These and various other objects, as Well as the withthe accompanying drawings of which Fig. 1 is a sectional view taken von the line i-i of 60 Fig. 3 of a feeding apparatus constructed in ac before it reaches the mill. ’ ’ lV On the side walls 2M of such clamping frames ir of vertically disposed guid 60 2 2,092,480 ing plates 2|8 which are extended downwardly along the sides of the main frame 205 and ar ranged to slide in two pairs of guides 2|9 secured to the sides of the latter` frame which prevent any endwise movement of the upper frame when lowered and raised to engage and disengage the the material so as to resist its movement there stock mounted on the lower frame. " 10 236 and the levers 242 and 243 are rotated to ward the mill. During the first part of this move ment the upper frame 2 I3 is moved into operative engagement with the lower frame, that is with the upper rolls 2|6 projecting below the surfaces of the lower rolls 209 and in a position to flex For raising and lowering the upper frame 2|3 and also reciprocating the entire apparatus to through, and hence tension it and straighten it ward and from the mill a hydraulic motor 22| is provided, being mounted for convenience on a into and pulled through the mill. ._ 10 As soon as the stock is properly gripped in the pedestal 222 located directly below the feeder. While not shown, any suitable source of power supply may be utilized for operating this motor which consists essentially of a cylinder 223 and a plunger 224 and any suitable control for con trolling its operation may be employed. To the plunger 224 of this motor there is at tached a connecting rod 225 which in turn is ~ connected to a cross head`226 located at’the mill as Well as hold it in alignment as it is pushed feeder the continued movement of the plunger 224 in the same direction causes the feeder to be moved forward toward the mill eventually reaching its foremost position indicated by the dotted lines 25| in Fig. l. To prevent the feeder passing beyond this latter position a pair of re siliently mounted stops 252 is secured in suitable brackets- 253 to the two sides of the lower frame 205 adjacent the rear end thereof, being so ar- ~ end of the compression cylinder. From this cross head a pair of connecting rods 221 is extended on opposite sides of the engine through guides 228 to the forward end of the cylinder 223 and joined ranged that they engage the sides of the mill housings 203 when the frame is moved suffi ciently in the forward direction. To accomplish the same result when the feeder is moved away 25 together by a, shaft 229 on which a bifurcated from the mill the rails or bars 206 on which the connecting link -23| is pivotally mounted. The arms 232 of this connecting link are pivotally connected to the free ends of a pair of cranks 233 which are keyed to a shaft mounted in spaced 30 bearings 235 located on an extension 240 of the engine pedestal 222. On the outer ends of this latter shaft 234 outside of the bearings 235 there is secured a second and longer pair of cranks 236 which are extended upwardly toward the main 35 stock-supporting frame 205. Secured to the under side'of the lower stock supporting frame 205 in suitable bearings 231 and 238 located adjacent the opposite ends thereof is a pair of shafts 239 and 24|. On the -ends of 40 these there are keyed two pairs of levers 242 and 243 respectively. The latter of these, which are located at the rear end of the frame are some what L-shaped and longer than the ~former and connected by pairs -of links 244 with the upper 45 ends of the cranks 236 secured to the outer ends of the shaft 234 mounted on the extension 240 of the pedestal 222 to which the plunger 224 of the engine 22| is operably connected as previously described. 50 l » - In substantial alignment with the shafts 239 and 24| mounted on theunder side of the main frame 205 oppositely disposed' pairs of trunnions 245 and 246 are secured to the inner'faces of the. side walls 2|4 of the upper clamping frame 2|3 55 and to these there are secured two pairs of con ..60 necting or lifting' rods 241 and 248 which are also connected to the free ends pf the levers 242 and to the levers 243 near their free ends, while between such latter levers at points directly op posite the points where the lifting rods 241 and 248 are connected there is secured a pair of side links 249. - With this arrangement whenever the plunger 224 of the engine 22| is moved away from the mill it causes the cranks 236 and the levers 242 and 243 to be rotated in the same direction, and l thereby lifts the clamping frame 213 away from the lower frame 205 and also moves both frames away from the mill. When so operated, the up 70 per frame 2|3- is adapted to support the upper leveling rolls 2|6 clear of the lower rolls 209, as shown in Fig.' 2, so that the stock can be readily fed into the sticker which is thus disposed to a position for receiving the stock prior to feeding. 75 On the reverse stroke of the engine the cranks main roll and stock-supporting frame 205 slide are provided with lugs 254 on their outer'ends which are disposed to engage the rear end of such frame. A difficulty encountered in forcing flexible ma 30 terial of the nature contemplated by the inven tion into the working rolls of a backed-up mill or mill having a roll pass 0f the same character is that the material buckles when it is pushed against the rolls unless the force is applied- to 35 it very close to the mill and when 'such buckling develops it is` practically impossible to enter into the mill if any appreciable force is required for such purpose. A further difficulty is to apply the force to the material sufñciently close to the 40 roll pass of the mill to prevent this buckling. To overcome these difficulties and at the same time permit a roller leveler to be used as a feeder and tensioning drag, a clamping shoe 255 is pro vided on the forward end of the upper roll-sup 45 porting frame 2 |3 to cooperate with the platform or apron 2|| on the lower frame 205 in forming means for gripping and clamping the material sufficiently close to the mill to prevent its buckling .when forced toward the rolls. Another purpose 50 of such >shoe is to straighten the end of the ma terial and thereby accurately register it with the roll pass. As shown, the shoe, which, like the apron`2| |, is preferably made of brass or some other suitable soft material, is attached to a 55 frame 256 which is equipped at its rear'upper corners with a pair of lugs 251 in which vertical slots 258 are provided. In these slots a pair of pins 259 secured to the side walls'2l4 of the upper frame 2| 3 is engaged, the slots being pro vided to permit the shoe 255 to be moved relative to the frame 2|3 so that it may be released as soon as the material isv engaged in the mill. As will be appreciated it is desirable to so release this shoe at such time so that the material can 65 be drawn without injury'through the feeder or drag. ï For operating the shoe 255 in the manner re ferred to its supporting frame 256 is connected -at its two ends by- toggle links 26| and 2624 to the walls 2 |4 of the clamping frame 2|3. 'Ir'hese links 10 are so designed that when they are in alignment, Y and the clamping frame is operated to its stock engaging position by the motor 22|, they firmly clamp the shoe againstthe apron 2| |. To hold 75 2,092,480 3 them in alignment when the material is being minimum of dimculty gear racks 212 are secured clamped against the _apron 2H by the shoe 255l to the lower side edges of the main supporting frame and meshed with a pair of >pinions 213 and to break the toggle so as to release the shoe after the material is engaged in the mill, a pair of rods 263 is connected to their central joints 264 and'extended to the rear of the upper frame 2I3Jthrough the cross braces 2I5. At their rear ends these rods are equipped withîcoil springs 265 which are disposed to bear against the rear 10 brace 2|5 and suitable stops 266 secured 'to them at‘a point spaced from such brace. These springs both hold the toggle links 26| and 262 in .align ment under normal conditions and return them to such position whenever the toggle is broken 15 and the forces breaking themare released. To provide for automatically releasing the shoe which are employed to move the appa-ratus after its ,link connections are removed out beyond the face of the mill so that the repairs can be made with ease. 4As shown, these pinions are keyed to a shaft 214 carried in bearings 215 attached to the mill housings 203, the ends 216 of the‘ shaft boing made non-circular to receive a turning tool 10 for effecting its rotation. Among'the advantages of the invention is the provision of a feeding apparatus for forcibly feed ing iiexible material into a rolling mill and ten sioning it after it is engaged in the mill, which 15 is simple and sturdy of constructon, efficient and 255 as the sticker reaches the forward end of its \ easy to operate at any desired speed, and at the i feeding travel-under the inñuence of they operat same time adapted to both maintain the end `ing motor 22|, a pair of triggers _251 is pivotally -20 mounted on the rear upper corners of the side and the axis ,of the material in proper alignment, as well as tension it without marring or impair 20 walls of the clamping frame and so arranged that` ing its surface.~ In addition, as will'be appre- l their lower ends bear against the rear ends of the ~ ciated, it may be adapted for use with any shape _ toggle operating lrods 263. The upper ends of of material which is contemplated bythe ap ‘these triggers are in turn disposed to engage a pended claims, as well as the fact that it may 25 pair of adjustable stops 268 mounted on the in be modified in various ways as will be understood 25 ner walls of the roll housings 203 of the mill as by those skilled in the art without departing` the sticker approaches the forward end of its from the spirit .of the invention. feeding travel. As a result theycause the trigger I claim: ` ' i to rotate above their pivots 269 forcing the v 1. A combined sticker and drag for forcibly'I 30 toggle rods 263 forward relative to the clamping feeding thin metallic strip into a rolling mill 30 frame 2 i3 and thereby break the toggles as shown and tensioning it after it is engaged in the mill, by the dotted lines 2li in Fig. l and lift the shoe. comprising a-roller leveler mounted for_move _ In the event the stock or material is picked up ment toward and away from the mill in the plane bythe millbefore the shoe 255 is released by the of the working pass of the mill and adaptedto to ' Ur triggers 261 it will, by friction, cause the shoe tension the strip, means for positively moving said 35 255 to bepulled forward over the stationary apron leveler in both of said directions, means secured 2li thereby causing the toggle to be broken and to the forward end of said leveler for gripping yin such way relieve the pressure on the shoe, thus the material and sticking the forward end there preventing any damage to the material under of in the mill as the leveler is moved toward’the ' mill, and means for releasing said gripping 40 such conditions. In operation with the feeder in its released means when thel material is engaged in the mill. position )a piece of material is fed through it 2. A combined sticker and drag 'for forcibly feeding material to be rolled into a rolling mill until the forwardend thereof is against or sub stantially against the `mill rolls. The operating, and- tensioning it after it is engaged4 in the mill. . motor 22H is, then actuated to effect the feeding comprising a roller leveler'consisting of a lower operation which consists essentially of three and a vertically adjustable upper roll supporting movements: First, the clamping frame 2i3 is frame mounted for conjoint movement toward ‘ moved into clamping engagement with the main and away from the mill in the plane of the supporting frame 205, causing 'the shoe 255 to Working pass of the mill, a single power unit for adjusting said upper rollsupporting frame and 50 50 firmly engage the end of the material between it and the apron 2li and rolls Zit to move to a positively moving both of said frames in both of position with respect to the rolls 209 providing said directions, means secured to the forward end a strengthening and tensioning pass; second, as of. said leveler for gripping the material and soon as the clamping frame is moved to its stock sticking _the forward end thereof in the mill as ‘ engaging position the entire apparatus is moved the leveler is moved toward the mill, and means towardy the mill; and third, as the apparatus for releasing said gripping means when thema nears the end of its feeding stroke the triggers terial is engaged in the mill. ' 261i engage the stops 268 breaking the toggles 3. A combined sticker and drag for forcibly 26l and 262 and lifting the shoe-255 to its re feeding thin metallic strip into a rolling mill . 60 leased position.` Thereafter the passage of the and tensioning it after it is engaged in the mill, 60 stock through the mill is resisted by the effect comprising- a roller leveler consisting of a mam thereon of the rolls 200 and 2i6 which in addi lower roll supporting frame equipped with leveler tion to tensioning the stock strengthens it and . rolls and a verticallyadjustable upperroll sup porting frame equipped with cooperating leveler ' . maintains it in alignment without in any way ; marking or marring its surface. rolls which are mounted for conjoint movement 65 After a piece of stock has passed through the toward. and away- from the mill in the plane of the working pass of the mill, means for adjust , mill the motor 22| is reversed to return the ap ing said upper frame to engage and disengage a paratus to its original position. During this vop eration ofthe motor the clamping frame is first >piece of stock placed on said lower frame, means moved to its released or elevated position and for positively moving both of vsaid frames inthe 70 then rearwardly. As the triggers 2li?`~ move away manner described, means secured to the forward from the stop'268 thesprings onthe toggle op end of said leveler in spaced relation to said erating rods 263f1retrieve these rods and return leveler rolls for gripping the material and ,stick the toggles to their aligned clamping position. _ ing the forward end thereof in the mill as the 75 To provide for repairing the apparatus with a leveler is moved toward the mill, and means auto 75 4 2,092,480 matically operable at a predetermined point in mounted on said lower frame in front of and in line with the rolls thereof, a clamping shoe ad justably supported on said upper frame opposite said apron, a toggle connection securing said shoe to said upper frame, means for breaking said toggle connection to release said shoe, means dis posed to actuate said toggle breaking means after a predetermined forward movement of said upper with cooperating leveler rolls` mounted for move- . frame, a motor disposed below said lower frame, and means connecting said motor to said two 10 ment toward and away from the mill in the plane frames in such a` way as to operate said upper v of the working pass of the mill, means for posi frame into and out of operative relation with said tively moving said leveler in both of said direc tions, cooperating means secured to the forward lower frame and both said frames toward and from the mill with which they may be used. end of said leveler frames for gripping the ma 8. A combined sticker and drag for «forcibly terial and sticking the forward end thereof in feeding material to 'be rolled into a rolling mill the mill as the leveler is moved toward the mill, and tensioning it after it is engaged in the mill, and means disposed to engage the mill andy auto the movement ofthe carriage toward the mill for releasing said gripping means. 4. A combined sticker and drag for forcibly feeding thin metallic strip into a rolling mill and tensioning it after it is engaged in the mill, com prising a roller leveler consisting of a lower and an upper roll supporting frame each equipped matically release said gripping means when the material is engaged in the mill. 5. A combined sticker and drag for forcibly feeding thin metallic strip into a rolling mill and tensioning it after it is engaged in the mill, com prising a lower roll supporting frame equipped with a plurality of leveler rolls mounted for move ment toward and away from the mill in the plane of the working pass of the mill, an upper comprising a carriage equipped with cooperating rolls disposed and adapted to engage a piece of stock and resist the passage thereof through them, means for positively moving said carriage toward and from the mill, cooperating means se ?cured to the forward end of said carriage for gripping and feeding the material into a mill, and means for releasing said gripping means. 9. A sticker for forcibly feeding flexible stock roll supporting frame equippedV with cooperating `into a rolling mill comprising cooperating Aclamp leveler rolls and mounted for vertical movement ing elements disposed for movement into and out with respect to said lower frame as well as for horizontal movement therewith, means for rais ing and lowering said-upper frame` and positively ments towardand from- a mill, and means asso moving both of said frames'toward and from the mill, cooperating means secured to the forward ends of said frames for gripping a piece of ma ciated therewith disposed to engage the mill and ' terial disposed therebetween and sticking the for ward end thereof in the mill as the two frames are moved toward'the mill, and means disposed to engage the mill and automatically release said gripping means when the material is engaged in 40 of clamping engagement with a piece of stock, means for forcibly moving said clamping ele 30 the mill. ’ 6. A combined sticker and drag for forcibly feeding thin metallic strip into a rolling mill and tensioning it after it is engaged in the mill, com prising a lower roll and stock supporting frame equipped with one or more leveler rolls mounted for movement toward and away from the mill in the plane of the working pass of the mill, an upper roll supporting frame equipped with one or more cooperating leveler rolls mounted for automatically release said clamping elements when the material fed thereby is engaged in the mill. l 10. yFor use in combination with a rolling mill, means operable as aV drag for applying a tension to a piece of strip ‘being passed through the mill, releasable clamping means arranged in front of the tensioning means for gripping' the end of the strip, and means for actuating said clamping means to positively forcelthe end of the strip into ' the bite of the mill rolls. 11. For use in combination with a rollingy mill, a strip straightening device arranged in front of the mill and provided with means for resisting the passage of a piece of strip therethrough, means disposed between said straightening de Vice and the mill for gripping the end ‘of the strip, and \means for actuating said gripping ' movement with and relative to said lower frame, means for positively moving said upper frame - means to positively force the end of the strip into relative to said lower frame and both of said the bite of the mill rolls. 12. For use in combination with a rolling mill, frames toward and from the mill, means secured ‘a roller leveler arranged in front of the mill to to the forward ends of said frames for grip ping the front end of the material and sticking it engage and resist the passage of the stock into the millahead of the leveler'when itI is through ther mill, means arranged between said moved toward the mill, and means automatically leveler and the mill for gripping the end of the stock, and means for actuating said gripping operable at a predetermined point in the move ment of the roller supporting frames toward the means to positively force the end of the stock 60 mill for releasing said gripping means. into the bite of the mill rolls. 13. For use in combination with a rolling mill, '7. A combined sticker and drag comprising a lower roll and stock supporting frame equipped a roller leveler comprising opposed sets of work ing rolls for engaging a piece of strip and resist f on its upper surface with one or more leveler rolls and mounted for movement toward and away ing its passage through the mill, means for mov from the working pass of a rolling mill, an upper ing one of said sets of rolls into and out of op roll supporting *frame equipped with one or more erative position, means disposed between said leveler an’d the mill for releasably clamping the leveler rolls disposed to cooperate with the ñrst mentioned rolls in forming a roller leveler and end of the stock, and means for actuating said mounted for movement toward and from said clamping means to positively force the end of lower frame and also therewith toward and from a mill, a’stock supporting and clamping apron the stock »into the bite of the mill rolls. ` ~ HOWARD H. TALBOT. î 'CERTIFICATE '0R CORRECTION. ' _ September _?,f 1957. RCWARD H. TALBOT.v It is hèreby certified thaí: error appeàrs in the printed speciflcàtio'n. of the above mimbered- potent requiring correction as follows : Page Ll., second _ Column», line 18, elaim8,_aftez_~_the word "cooperating" insert sete of’ opposed I horizontalljdisposed; -line 19 „ ,éame Claim, for-_' "disposed and adapted" read arrangeçîg' same line and c1á‘im,'_.before "engage" insertßo; line. 20, same o1aim,for "and" re ad as to; end that the saidvLetters Patent shoùld be» vrea-d. with these'eorrecvti'ons therein _that the same'may conform to thel record '_ of> the case i'n the _Patent O_fí‘iee. A' ' . 1 ' Signed end sealed this 26th day of (_)c‘lÉobeI‘rl À. 'DQ -`1957. ` (Seal) _ _ " ` _ ’ Henry’v Van Arsdale,J Acting- Commissioner of Patents..