Патент USA US2265191код для вставки
Dec. 9, 1941. ‘ J_ F, PETERS 2,265,191 FEEDING DEVICE Filed Aug. 2, 1940 2 Sheets-Sheet l INVENTOR. ATTcSRNEYs . Dec. 9, 1941. J_ F, PETERS 2,265,191 FEEDING DEVICE Filed Aug. 2, 1940 2 Sheets-Sheet 2 ‘ BY 3mm INVENTOR. f4 raw“ . ATTORNEYS 2,265,191 Patented Dec. 9, 1941 ‘ UNITED ‘STATES PATENT aim: ' 2.265.191 ‘ ‘ FEEDING DEVICE John F. Peters, Leonia, N.‘ J., assignor to Amer ican Can Company, New York, N. Y., I’ cum I ration of New Jersey ~ - Application August 2, 1940, Serial No. 349,783. 4 Claims. (01. 271-710) The present ‘invention relateslto feeding de Fig. 2 is a vertical sectionaldview taken sub vices of the reciprocating character for advanc stantially along the line 2'—2"-’inf l, with ing can parts along a predetermined path of parts broken away; , _ I ' travel and has particular reference to retaining Fig. 3 is an enlarged transverse section taken the fed can parts in an advanced position so 5 substantially along the line H inll'ig; 1,"with that they will be prevented from slipping back parts broken away; and . I along their line of travel with the feed ele Fig. 4 is a vertical longitudinal sectiontaken ments. This is an improvement on the Can end substantially along_the_line ,H in 3. assembling machine disclosed in United States As a preferred embodimentof the invention Patent 2,200,276, issued May 14, 1940, to J. M. 10 the drawings illustrate principal parts of a fibre can end feeding and ‘assembling station of a In feeding devices of the reciprocating char machine of the character disclosed inthe above mentioned Hothersall patent. ‘ acter the articles to be fed along a path of travel are usually engaged by spring held feed In such a machine the can end members indi dogs carried in a reciprocating feed bar or the 16 cated by the numeral A are fed along a curved path of travel into position adjacent the open like. On the return stroke of the feed bar the dog is pressed down by the article following end of rectangular fibre can bodies B and are the one just advanced and travels therealong to inserted within the bodies and subsequently sealed in place to produce the well known milk its original position behind the article so that it will be in readiness to engage and advance 20 containers of the character disclosed in United States Patent 2,085,979, issued July 6, 1937, to this article on the next feed stroke. Numerous devices have been designed to prevent retrograde J. M. Hothersall.‘ The can bodies 13 are carried through the movement of the article with the feed ?nger as machine in a horizontal position on a suitable it returns to its rearmost position but it ap intermittently moving conveyor which brings the pears that such devices are sometimes of com plicated and expensive construction. bodies to rest at successive working stations lo The instant invention contemplates the pro cated along the conveyor. When a-body comes to rest at the assembly station shown in Fig. 1 vision of a feeding device having a rear move vment stop which is simple and inexpensive in it is shifted endwise, transversely of 'the con construction and which may be readily attached 30 veyor, into a can holding head II. This head is provided with radially movable jaws l2 which to most any feeding device. move inwardly and around the inserted and of An object therefore of the invention is the the body and temporarily hold it against dis provision of a can part feeding device of a placement for the reception of a can end mem reciprocating character having a rear movement stop wherein can parts fed along a predeter 35 ber A. The can end member A adapted to be inserted mined path of travel are prevented from return within the open held end of the body B is brought ing with the feed elements on their rearward into position adjacent the end of the body by a stroke. feeding device generally indicated by the nu Another object is the provision of such a feeding device wherein the guide rails adjacent 40 meral I4. This device includes an inclined mag azine l5 which retains a stack of, the end mem the path of travel of the can parts are formed bers A. The magazine is supported on a sub with spaced notches which engage behind an advanced article and thereby hold it against re frame [6 which is bolted to a machine main frame, IT. turn with the feed elements on their rearward 45 The end members A are fed from the bottom stroke. Hothersall et al. Numerous other objects and advantages of of the magazine, the lowermost member in the stack ?rst being separated from the stack and the invention will be apparent as it is better then completely ejected from the magazine. understood from the following description, Separation of the lowermost end member is pref which, taken in connection with the accompa nying drawings, discloses a preferred embodi 50 erably brought about by a continuously rotating ment thereof. separator screw 2| (Fig. 2) having a long lead Referring to the drawings: thread 22 which supports one edge of the stack Figure 1 is a vertical sectional view of a feed of the end members in the magazine. The screw ing device embodying the instant invention, 5 is mounted on the upper end of an inclined shaft . with parts broken away; 5 23 carried in a bearing bracket 24 secured to 2 9,265,191 the are-rm It. The lower end of the mm carriesabevelgearflwhichmayberotatedin any suitable manner in time with the other mov Hencethe r er frame 4| carries the feed ?ngers II bac and forth along the runway 49 for a stroke slightly greater than the length of ing parts of the machine. one can end. On the forward stroke a feed ?n Hence as the shaft 23 rotates, the separator 5 ger engages behind a can end and pushes it along screw thread 22 works its way in between the the runway one step. 0n the backward stroke lowermost end member A and the one next above in the stack. Rotation of the screw thus brings _ the can end remains stationary in its advanced position and the ?nger is thus depressed by the can endnext in line and travels back along this the lowermost end member into a horizontal po sition as shown in Fig. 2 as the edge of the end 10 can end. At the completion of the return stroke member travels downwardly with the screw the ?nger snaps up behind the can end and is 'thread. The remaining end members in the thus ready for the next forward stroke. This is stack are in supported position on top of the a usual feed device construction. screw and hence a space 26 is created’ between In order to hold the advanced can ends from the lowermost end member and the one next 15 retrograde movement on the return stroke of ' ' _ the ?ngers, the outer rails I52 of the runway 49 Ejection of this separated end member A from are formed with a plurality of spaced notches 65 the magazine is effected by a reciprocating hori which set off stop shoulders 66 in the rails. zontal slide bar 3| formed with a stationary feed Th’ese notches are located just above the under dog 32 which travels back and forth under the 20 cut clearance recesses 54 in the rails. magazine ii. The slide bar‘operates in a slide The can ends while traveling along the run above in the'stack. way 33 formed in the. sub-frame It. A rack 35 way 49 are closely con?ned between the inner on the bottom of the slide bar meshes with a and outer rails 53, 52 and thus assum‘e a curved segment gear 36 formed on an arm 31 mounted character which corresponds to the curvature of on a pivot pin 39 carried in the sub-frame. 25 the runway. When an advanced can end comes The arm 31 is connected by a link 39 to a to rest at the end of the feeding stroke its rear rocker frame 4| which is keyed to a shaft 42 carried in the sub-frame IS. A lever 43 also keyed to the shaft 42 is connected to an oper ating link .45. This link is reciprocated in any suitable manner in time with the other moving parts of the machine and preferably in the man ner disclosed in the Hothersall patent above edge is adjacent a pair of the notches 65. - Hence the natural spring in the ?bre stock of which the can ends are made permits the can end to return to its ?at straight condition and this snaps its rear edge outwardly into a notch where it is adjacent the stop shoulders 66. Thus when the feed ?ngers move rearwardly the can mentioned. _ ends are held against displacement by the stop Reciprocation of the link 45 rocks the rocker 35 shoulders and are thus prevented from moving frame 4| and this through the connecting link back with the ?ngers. 39 rocks the arm 31 and the segment gear 36. The last stepped advancement of a can end A Rocking of the gear thus reciprocates the slide brings it into a vertical position, on edge and in bar 3| in its slideway 33. When the slide moves front of the held can body B in the holding head inwardly its feed dog 32 engages the separated 40 II. The can ‘end is thereupon pushed into place can end A and pushes it out from under the within the body by a reciprocating pusher ele magazine. The moving can end rides along an ment ‘II which is disposed rearwardly of the can inclined sloping surface 43 on the bottom of the holding head and in endwise alignment with the magazine‘ and is thus directed into a curved held can. This pusher element may be recipro runway 49 disposed adjacent the outer edge of cated in any suitable manner operating in time the rocker frame 4|. with the other moving parts of the machine. The curved runway 49 extends inwardly and Insertion of the can end into the body and a downwardly toward the can holding head I l and partial folding inwardly of the body ?ange to terminates adjacent the open end of the held can body B. This guideway includes a pair of 50 hold the end in place completes the assembling operations at this station and the can is there spaced and parallel outer ?at rails 52 which are' upon released and withdrawn from the can hold secured at one end to the sub-frame l6 and a ing head II and advanced by the conveyor to pair ofsim-iiar inner ?at rails 53 which are se other stations for subsequent operations. cured to the outer rails. The outer rails 52 are It is thought that the invention and many of formed with an undercut recess 54 in which the 55 its attendant advantages will be understood from can ends slide and which con?nes them against the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts with ' For this purpose the rocker frame H is formed 60 out departing from the spirit and scope of the lateral displacement. A can end deposited in the runway 49 is ad vanced therealong in a step-by-step manner. with a curved outer face which carries a plurality of spaced feed ?ngers 55 mounted on pivot pins I. secured in the frame. The outer ends of the feed ?ngers extend into the path of travel of the can ends in the runway. Adjacent the pivot pins 56 the ?ngers carry depending lugs 58 which extend down into clearance recesses 59 formed in the‘rocker frame. Each of these lugs is en gaged by a spring barrel 6! backed up by a. com pression spring housed in the rocker frame. The 70 invention or sacri?cing all of its material advan tages, the form hereinbefore described being merely a preferred embodiment thereof. I claim: 1. A can end feeding device, comprising in combination, a plurality of spaced feed ?ngers adapted to be reciprocated in unison for advanc ing can ends along a predetermined path of travel in a step-by-step motion, and a curved runway disposed adjacent the path of travel of said ?ngers for guiding the can ends, said run way having a plurality of spaced notches setting engaging against the rocker frame adjacent one on‘ stop shoulders into which the rear edges of side of the recess and thereby serving as stops the can ends ?ex and engage, thereby preventing 75 retrograde movement of the can ends with the to limit the outer travel of the feed ?ngers. spring barrels thus normally maintain the feed ?ngers in position in the runway, the lugs 59 3. 2,265,191 ?ngers when the latter move back on their re posed adjacent the outer face of said rocker frame, said outer bars having undercut recesses for con?ning and guiding the can ends and hav ing a plurality of spaced notches setting off stop turn stroke. 2. A can end feeding device, comprising in combination, a rocker frame having a curved outer face, means for rocking said frame through 5 shoulders against which an edge of a can end a forward stroke and through a return stroke, a engages and thereby prevent retrograde move feed ?nger mounted in said rocker frame for ment of the can ends with the ?ngers when the advancing can ends along a curved path of travel latter move rearwardly on their return stroke. in a step-by-step motion, and a curved runway 4. A can end feeding device, comprising in disposed adjacent the outer face of said rocker 10 combination, a magazine for retaining a stack of frame for guiding a can end while holding it in curved shape corresponding to the shape of said curved runway, said runway having a notch which allows said can end to assume its original ?at form and to engage a stop shoulder set off can ends, a separator screw adjacent said maga zine for separating the lowermost can end from the others in the magazine, a feed dog alsoad jacent said magazine for ejecting said separated can end from the magazine, a plurality of spaced in said notch to prevent retrograde movement of the can end with the said feed ?nger when feed ?ngers adapted to be reciprocated in unison and in time with said feed dog for picking up the the latter moves rearwardly on its return stroke. ejected can ends and for advancing them along a 3. A can end feeding device, comprising in predetermined path of travel in a step-by-step combination, a rocker frame having a curved 20 motion, anda curved runway disposed adjacent outer face, means for rocking said frame through the path of travel of said ?ngers for guiding the a forward stroke and through a return stroke, a can ends, said runway having a plurality of plurality of spaced feed ?ngers mounted in said rocker frame for advancing can ends along‘a curved path of travel in a step-by-step motion, spaced notches setting off stop shoulders into and a curved runway including a pair of spaced and parallel inner bars and a similar pair of outer bars superimposed on said inner bars dis which the rear edges of the can ends ?ex and en gage, thereby preventing retrograde movement of the can ends with the fingers when the latter move back on their return stroke. JOHN F. PETERS.