US1307171A - Sheet metal feeding mechanism - Google Patents

Description

1. E. ABRAMS AND-G. E. 0. PARKER.

SHEET METAL FEEDING MECHANISM.

APPLICATION FILED 650.1. 1917.

Patented June 17, 1919.

5 SHEETS-SHET 1.

' Lmwl,

.J. E. ABRAMS AND G. E. D. PARKER.

SHEET METAL FEEDING MECHANISM.

APPLICATION FILED DEC. l9l7' l' v Patented JI1I1617, 1919.

5 SHEETS-SHEET 2@ J. E. ABRAMS AND G. E. D. PARKER. SHEET METAL FEEDING MECHAN|{SM.

' APPLICATION FILED DEC. I, l9l7- V 1 ,SU'YJ 71 Patented J une 17, 1919.

5 SHEE TSSHEET 3.

J. E. ABRAMS AND G. E. D. PARKER.

SHEET METAL FEEDING MECHANISM.

APPLICATION FILED DEC. I. 1917.

Patented June 17, 1919.

5 SHEETSSHEET 4.

J. E. ABRAMS AND G. E. D. PARKER. SHEET METAL FEEDING MECHANISM.

APPLICATION FILED DEC. l. I917.

Patented June 17, 1919.

5'SHEETSSHEET 5- liEsss E. ABRAMS, on canonsecae, i nnri SYLVANIA, Al i-D E. D. PAPFEQ,

SYIEACUSE, HEX? YORK, ASSIQNOIRS T CDNLIN CAN CGMPAHY, 153%., Ill? GUSZE, NEW YORK, A COIt-PORATIGN 0?? NEW YQRLEL SHEET-1TETA L-FEEDING MECHANISILYL State of Pennsylvania, and at Syracuse,

county of Onondaga, and State of New York, have i vented certain new and useful Improvements in Sheet-Metal Feeding Mechanisms, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

't The invention relates to new and useful improvements in sheet metal feeding mecha nism, and more particularly to a feeding mechanism which is adapted to feed sheets of metal to a slitter.

An object of the invention is to provide a feeding mechanism which operates automatically to present the sheets to the slitter disks and which also operates to position the sheet relative to said slitter disk, so that the sheet is fed evenly and that the resulting strips may be uniformly shaped.

In the drawings which show by way of illustration one embodiment of the inventi0n,

Figure 1 is a plan view showing a portion of a. slitter having our improved feeding mechanism applied thereto;

Fig. 2 is a detail showing the mechanism for reciprocating the pusher in side elevation;

Fig. 3 is an enlarged plan view showing the automatic means for'delivering the sheet 7 to the pusher and for squaring the sheet on the pusher prior to the delivery of the same by the pusher to the slitter disk;

Fig. 4 is an end view of the parts shown in Fig. 23, viewed Irom the right of the figure;

Fig. 5 is an end view of the parts shown in Fig. 3 from the other side of the machine; and

Fig. 6 is a front view showing the feedingin rolls for delivering the sheet through the pusher and the supporting bed therefor.

The invention consists in an automatic feeding mechanism, wherein the sheets of metal are delivered to a slitter, 0r soi ieother mechanism adapted to operate upon the Specification oiLetters Patent.

Patented dune 1, aw. Serial no. 204,326.

metal, by a pusher which recigrccatee back and forth on the feedingun table in proper timing for delivering the sheets o the mechanism which operates-n on same. This pusher is provide i w. a Pay gaging wall and an end gagin wall, so the sheet may be god and properly pre sented'to the operatingmechanism. The sheet is brought against the end gage by reciprocating lever which eiig the opposite end or side edge otti V to or while the pusher is movingfor This seats the sheet metal agains he gage. The sheet is seatedagain gage 'by yielding lingers which lie in the path of travel of the sheet as the pusher moves forward. The sheet is presented to the pusher by feeding-in rolls which operate continuously but which are intermittently separated, so as to intermittently operate upon the sheet. The sheet is placed between the feed rollsand in proper timing the feed rolls grip the sheet and feed it forward to the pusher.

Referring more in detail to the drawings, Fig. 1 shows in plan view a slitter consisting of a supporting frame having end brackets 1, in which is mounted a shaft carrying the slitter disks 2, The sheet to be cut is supported by the flexible supports These parts are of the well known construction and further description thereof is not thought necessary. Y

The sheet to be cut is placed on a feedin in table 4 and is slid along said feeding-in table to the slitter disk. The sheet is shoved on the table by a pusher 5, which is formed with a supporting ledge 6,11 rear gaging wall '7 and a side gaging wall The pusher is also provided with slotted lugs 9 which are clamped by suitable bolts 10-10to bars 11. These bars 11 are mounted to slide in grooves 12 formed in the table 4. The bars are provided with a series of holes 13 which receive the bolts 10, so that the pusher may be adjusted or shifted from one position to another to accommodate sheets of dillerent sizes.

Mounted in suitable bearings in the frame "is a shaft 14. This shaft has two ,upwardly' projecting arms 15 and these arms are'connected respectively by links 16 toy-an ear 17 clamped to the bars 11 on the underface thcre j f. "he table is slotted to a certain extent, so as to permit these cars to slide back and forth and,v therefore, when the shaft 14: is oscillated the bars will be simultaneously moved toward and from the slitter disk. The shaft. l-l is oscillated by a link 18, which is connected to a crank pin 1!) on the face of disk 20, which disk is mounted on the shaft carrying the upper slitter disk. The other end of the link 18 is connected to-an arm 21 fixed to the shaft ll. The shaft 14 may, 7 therefore, be oscillated in proper timing to the speed of the shaft car rying the slitter disk.

The slitter mechanism, together with this feeding-in table and pusher, above described, is well known in the art and further detail description of the construction and operation of the same is not. thought necessary. The invention consists primarily in the feeding mechanism for placing the sheet on the pusher and the gaging mechanism which causes the sheet to engage the rear and end gages of the pusher, so that it will be properl y presented to the slittcr disks.

Referring more in detail to Figs. 3 to 6, inclusive, there is shown means for moving each sheet sidewise in order to cause the same to engage the end gage 8 on the pusher This means includes a swinging rock lever I Said rock lever is pivoted at to a suitable bracket mounted on the table 4-. The arm 25 of the rock lever carries a. bumper 26 which is pivoted at 27 to the arm and is normally forced outwardly by a spring A pin 25) carried by the bumper and extemling into a slot 30 in the arm 25, limits the outward movement, of this bumper. The other arm 31 of the rock lever 22 is forked at. 32 to engage a pin 33 on a sliding bar 3%. This sliding bar moves back and forthin suitable lmwkets 35 and 36. (.lamped to the bar 34 is :1. depending arm 37; This-arm carries a sleeve through which extends the rod 39. Said rod is secured in the sleeve by a set-screw 40. The rod 38 also slides in suitable hearings in the brackets 35 and filth A spring 41 is disposed between the sleeve on the arm 37 and the bracket, 35 and normally forces the rod in the direction of the arrow. tr- At ifS inner end said rod carries a. roller 42 which bears against a cam 43 on the shaft 44, which supports the lower slitter disk. This cam is provided throughout a greater portion of its circumference with a concentric surface which leads into a depressed surface ,5. As the cam rotates, the rod 39 will at times be given a, quick forward and backward movement and said movement of the rod will impart. a quick oscillation to the rock lever 22. This causes the bumper 26 to engage the side of the sheet and move the same against the side gage 8. Inasmuch as the bumper is yieldingly mounted, the rock lever may have a positive throw Without bending the sheet: t

The shcet moved against the rear gage 7 by yielding fingers -56. These fingers are carried by a cross-shaft L7, and, as clearly shown in Fig. 5, there are two fingers one adjacent each end of the sheet. These fingers are secured to the cross-shaft. :-7 by suit able screws 48'. This cross-shaft 47 is mount ed in suitable brackets 50, one at each side of the table -l. The cross-shaft extends through one of these brackets and carries an arm 51 which is rigidly secured thereto. A spring 51" secured at; one end to this arm and at its other end to an extenjon at the base of the bracket 50, norn'ially moves the arms, so that the same are held in contact with av stop pin The lower ends of the fingers ll} extend into the grooves 12 in the table. As the pusher moves forward, carrying the sheet along "with it, the front edge of the sheet, will strike t se yielding fingers and this will move the sheet back until it comes in contact with the rear gage 7. The fingers then yield to permit the sheet to slide underneath the same and be fed to the slitter disks.

it. will be notedfrom the above that there is means provided for automatically gaging the side edge of the sheet and for bringing the sheet. into contact with said gage; also for gaging the rear edge of the sheet and for bringing the sheet into contact with sai l rear gage. If, thercforc, a. sheet of metal is placed on the feeding-in table. apywhere in advance of the pusher, the machine wall automatically position the sheet on the pusher and convey the samet0 the slitters. -vsa means for feeding the sheet on to the feeding-in table. there are provided feeding rollcrs 5' These feeding rollers are mounted on a shaft (oopcrating with the two outer fecding rollers 5i arc. upper feeding rollers 56. which are nmunted on a shaft 57 suitably driven. The shaft 55 is mounted in fixed hearings in the standard 58 which are sccllrc l to the feeding-in table 4. The

shaft .57 is mounted in hearing sleeves 59,

which are mounted to slide vertically in the upper poitions of the standard Gears 5!) conncct the shafts 55 and 57. A spring W) carricd hr ea h standard bears against the upper face of the hearing sleeve and normally tends to force the feeding rollers 56 into gripping contact with the feeding rollers 6%. The tension of the spring 6O may be varied by the abutment screws 61. Mounted on each standard is a laterally projecting bracket 62. Mounted in th' bracket 6:2 is a shaft, 63. The shaft 63 carries two arms 64 which project rearwardly under ncath the v-ispective bearing sleeves at the ends of the shaft 57. The extreme ends of these arms 64 are rounded to' engage the ii-easing sieeves suostentia-iiy dii'ectiy sneer mash the center of thy she-ft we the spring 60. By eseiiieting ii'se shaft 63 these rms 64 may 33s so as to raise the 'b and at its other end to the bracket 69, normeiiy holds the roller 70 in contact with the cam. This cam is shapeti so as to normally hold therod 6'? moved to the left untii substantially a hsif rotation of the shaft 4 1,

and while said rod is at ies extreme left 1am: position, the shaft- 57 will be held fliSBfi, that the feeding rolls 56 are infieeive. During she remainder of the re oi. the shaft 44;, the feeding rolis 56 21E 0! se dropped into cooperativ seuion with the "eciing rolls 5% and will giip a sheet pieced etween the rolls. and deliver the same on. "to the feeciing-in wine in advance of the pusher. in f o nt of the feeding soils is a raised sheet supporter 73. This sheet suppoi 'cer has an end gaging piste 74 acijnsnably secured thereto by bolts 75 which pass through slots 2 6 into sheet supporter. The sheets may be staoifed on this sheet supporter and are fed by sin operator one at e time between the feeding roiis 54 and 56. No particular skiii is required in feeding the sheet enden unskilled opemior may, es therefei'e, piece the sheets one as is time between the feeding mils. In proper timing to the operation of the pusher the feeding i'oiis iii. the sheet and will quiekiy mo e the same forward on to the fQECiillg-ill ieoie eriwmee ofet he pusher. As the pusher moves forwei'i the bumper e6 Wiii be nteeiwith the side edge of i 1 the 1e istei'eiiy ilntii it outset with side Ti1e 01 meet pusher will causeflie eh 16 and this will retire; die n overlie-1t of the m unt l it fifitizifit with the II ibei 7 we the siieei p ope'my preio tiie si ister disks-f i 3 it is obvious that minor changes the iei lid ei'mnge'ment of k ps-tin sei', 'if-Jfilh in i; 's Patent, is:

i. A. shee ee m fsheet 101' me :2 id yieizilii "11mm".

eifi'ge J'iie shes/3; .uuu so bi -Lees Wii-il pwiie moves foswerii,

vding mecii ashes S139, M. the same 1 .7 the 3. sneee 'ie em. I 2i reciprocating pusher gages, a swinging arm bumper mounted iieieon Ion en sicie e 398 of the sheet "for me ietei'siii to cause the same '54: cm L s the side gage, yielding fingers ie-ee in,

Jsth of movement of the sheet IJ the front edge thereof am} missing sai. i'o ooiiteetwltii ssl. rear 5,, the moves forward.

1 shee'i-feeiiing iiieeh" ipiising' e reciprocating pesher having 4m: and side gages, a swinging; rock: lever, s pivoted bumper eeiifieoi. by one arm reek le /er, e spring nennaiiy ioi'eing said bumper outwardly, e sto iimitm g the ouswsia'i movement of the amp-er, means; osci1- lasing said rook lever, said-"bumper being disposed so co engage the side so '"es of the sheet-e116. move the same, lasers-fly to cause the sheet to contact with the side on the push-e1.

5. A sheet mechanism compris a reciprocating pusher having re gages, a swinging rock ieveig. e pivoted bumper carriedby one arm saici lever, is spring; moi mil; bumper ouswsrdiy, s step iimiting ward movement of the bumper, means. 01 1 osoiiletmg said level, bumpei' being disposed so as to engage side o? the sheet and move the same let. emise the she We the s pusnsheets, on having the same to contact with the side gage, means for engaging the front edge of the sheet for causing the sheetto contact with the rear gage, opposed feed rollers for feeding the 15 sheet on to the feed ta l'ile in advance of the pusher, and means for intermittently rendermg said feed rollers ineffective.

tures.

JESSE E. ABRAMS. GEORGE E. D. PARKER.

In testimony whereof we aflix our signa-

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