US2672631A - Auxiliary wiping mechanisms - Google Patents

Description

March 23, 1954 E. H. SIMMS ET AL 2,672,631

AUXILIARY WIPING MECHANISMS Filed March 5, 1955' Inventors Ernest H Simms Jfin Az'nswo'r't/a Patented Mar. 23, 1954 UNITED E GF'F ICE -2,c'z2,c3r

AUXILIARY WIPING MECHANISMS Ernest" Harry Simms" and Jblfin' Richard Ains worth; Leicester,v England, as'si'gncrs to United ShoeMachinery Gorporati'on; Flemington; N. Jr, a corporation: ofNew Jersey ADpIication Marcli. '5; 1953,,SeniaLNo. 340,602=

Glaimss'priority;application Great Britain April 8, 1952-:

structedso-that thaturning; up ofthe work marginiisiaccomplishedhbyy the use of an oscillatory finger movable nearly heightwise to press the margin: against theside 0132 a dependingcreaserfoot. 'This'upturnedtwork is then-pressed down bite hammer and gripped againstan-v anvil. The feeding, ofi theworh isaccomplished by a swing;- ing: of th ihammer and-anvil together; It has. long; beenrecognized; however, that there is apossibility that; the upturned. margin will "draw back between the time when it leaves the folding, finger ands before: it is; gripped: by the hammer. The. fact remains, howeventhat; altight fold is: thesmarkiofl good workaand various attachments have been, provided for such; excellence.

It is an object of the invention to provide: an

improved wipermechanism lwhich' willibe 'efiective to-make-a-tight foldi.

In some forms of womenfs-shoet fl it is not-uh common to have-two or more straps-which extend acrossthe top oftheifoot: and between which there is a rather narrow throat. In order to work ef-- fectivelyuponiwork of this type it is essential that there. shall bend-machine parts which'will interfere with the swinging ofthe: work around the throat (Zine feature of the-invention,therefore. is to: provideaxw-iper mechanismzwhich isv hung upon the machine at appoint above the work. In the illustratedv machine r this suspension of. .the wiper involvesa swingable: member having, a. ballshapeidend upon which the, wiper itself is pivoted.

. 1 heactuation of the wiper'isi efiectediby: a link connection. tothe hammer and,. in accordance withianother" feature of the. invention, the: arrangement is such that the wiping movement takesfplace during, movement of. theLhammer toward the: anvil,,. thereby to: tighten a portion oi? the: work before: the work :isgripped: between the hammer andianvil. With thisimechanism, also, the wiperisicarried through-afour motion path im which it wipesis raised moves toa forward position and then is carried downward to wipeaeain as the; hammermoves forwardto-itsinitiahpositiont 7i Claimsr (Cl..'1-2 --55)i still another feature of the: invention: Will -be roundzzin-i an: arrangement such that/a liiting ot the creaser' foot: toadmit: a: new-pieceat work"- is; accompanied by a lifting of the wiper.

This: and: other features of'the invention will; best: be understood from. a considerationrof the following specification. taken in; connection-with theaccompanyingdrawings in which Fig. 1. is a; rearelevation: of the head or the:

folding machine. showing the hammerim raisedi position:

Eig.. 2 is: a': fragmentahy view of-i'parts oi the same :portionof the machine but viewed from-the: other side, i; e., the frontrotftheimachine, andshowing the hammer in engagement: with the work; just as: the wiper member" completes its traverse of. the folded edge; and" Fig; 3 is avertical section-on the-line ofFig. 2..

The: machine? shown in the drawings 1 oon'i'prises; a lower work-supporting arm NJ in wh'ichthere is: mounted; an: oscillatory hollow shaft 52' car-ry ingi-ani anvili 1:41 and: azha'mme'r t6. Execptt forthe shape; of. the: hammer these parts arelikethose found in the Dixon- Patent No. 2,301,202 andioperate. in; the same way: Simil'arlytoo; there is; provided-2a olding1'finger l 8-: carried by an arm 20" which-is pivoted at: 22. 'I-he machine isa'ls'o providedrwith: an overhanging arm" (not shown-I om whichzthere is m0unted a= stationaryplate 2"4; The-lower end' 26-05 this plate carries a pivoti pin 281 which supports" a: finger lever 30 having at its" outer end-alink 32 connected-to the upperend of ax-slidably mountedacreaser: foot 34', and when a piece of work I is: tov be i presented to the machine, this creaserfoot is. lifted: by a depression oftheleft; end of: the lever 30, as viewed in Fig. l-as dis closed more in the Dixon 'patent.- The wiper. mechanism includes a thin plate m having a rounded-corner 41 (Fig; 2) and the-lower end of this plate i's swung across the folded' margin ofthe-work to wipe-it" tightly. In the drawings, the; workris shownas comprising aportion of" an" upper- 44; having attached to it a; French 'bindingf 46' which is? shown in. Fig. r as standing-up be tween: the: folding finger it" and the side c'fithe creaser foot- 31' and is shown in Fig; zaswipe'd' over upo'n tlie worka'n'dgrippedagainst the'anv'il It by the hammer it;

In order to -provide-forth'e support ofthe' vviper' dil from'a point on the machine abovethework; the hand lever 30* has mounte'd thereon abracket: 5t -which is attached to" the lever by means or screws- 52 and which has an overhanging, end' SI" bored for the reception of a pivot pm"56*extend ing laterally from a housing 58. This pivot pin is provided with a retaining collar 60 and the housing is bored for the reception of a plunger 52, having on its lower end a ball 64. The plunger is slidable in the housing 58 as far as is permitted by a collar 66 and is normally held down by a spring 68 inside the housing and tensioned between a shoulder therein and an enlarged portion of the plunger.

The upper end of a split carrier link 12 is provided with a ball socket surrounding the ball 64 of the plunger 62. The lower end of the carrier 72 is bifurcated to receive one end of a link [4 connected to it by means of a transverse bolt 16. The other end of the link 74 is joined to a forked upper portion 78 of the hammer l6 and is attached thereto by a pivot pin 80. The wiper blade 4!) is mounted on the side of this carrier link 12 by means of a screw 82 and the head of the bolt 15. The length of the wiping member is preferably such that the lower edge projects slightly below the face of the hammer when the hammer is in contact with the anvil and no work is in the machine. At that time also the ballplunger 32 and the carrier link i2 are substantiah ly alined (when viewed from the end of the machine), the spring 58 allowing the wiping member to yield upwardly. The position of the lower edge of the wiper can be regulated by adjusting the heightwise position of the bracket on the lever 36. The left hand lower corner 42 of the wiping member as, as seen in 2, is rounded to avoid damage to the binding strip, and the binding engaging end of the wiping member may be serrated if desired.

It will thus be understood that the arrangement is such that movement of the hammer downwardly and to the left, as viewed in Fig. 2, as it closes upon the work, moves the actuating link ifto cause the carrier link 72 and the wiping member 48 fixed thereto to swing in a clockwise direction about the ball at the end of the plunger 62. This movement effects a wiping of the binding substantially at right angles to the direction of the work feed, the wiping member having moved off the binding (or substantially so) by the time the hammer presses upon the work. As the hammer and anvil swing rearwardly to feed the work, the carrier link 12 is canted rearwardly breaking its alinement with the plunger 62 (as shown in Fig. 3) by swinging the plunger 62 rearwardly owing to the pivoting of housing 58 on its pivot pin in the bearing arm 54. This foreshortening of the linkage causes the wiping member lfl (Fig. 3) to be lifted from the work, and the hammer, as it recedes upwardly, again draws back the wiping member, then out of engagement with the work, away from a position over the margin of the work in readiness for the next wiping movement.

The wiping member thus has a four-way motion, namely: (a) a movement from right to left as seen in Fig. 2 (i. e. substantially at right angles to the direction of the work feed) in engagement with the work (thereby tightening the binding around the edge of the work, as the hammer is moving down on to the work to grip it), (b) a rearward and upward movement to the position shown in Fig. 3 (out of engagement with the work) as the hammer feeds the work in cooperation with the anvil, (c) a left to right (Fig. 2) return movement as the hammer is raised and (d) a final movement to the front and then downward as the hammer moves forward to its initial position.

It will be clear that in the arrangement herein described there is no upwardly projecting part which is likely to obstruct the passage of an upper past the folding, wiping and pressing instrumentalities of the illustrative machine even on narrow throated work.

In the operation of the machine, after a workpiece, for example a shoe upper 44, has been presented to the machine and the treadle (not shown) as described in the aforementioned Dixon patent, is operated to cause rotation of the drive shaft (not shown) the binding is turned up by the folding finger l8 against the adjacent surface of the creaser foot 34 through which adhesive is supplied and the hammer then at the forward end of its movement moves downward towards the anvil M to press the folded portion of the binding against the workpiece. As soon as this downward movement of the hammer commences, the wiping member commences to move across the binding at right angles to the direction of work feed and wipes the binding, under spring pressure, inwardly of the workpiece. The lateral movement of the wiping member is completed (as shown in Fig. 2) and the wiping member has traversed the full width of the turnedover binding by the time that the hammer has completed its downward movement. The hammer then moves rearwardly, still gripping the work against the anvil, to feed the work, and the wiping member is raised from the workpiece (see Fig. 3). The hammer is then raised returning the wiping finger, now out of engagement with the work, to the right beyond the edge of the workpiece, and finally moves forward, causing the linkage of the wiping mechanism to straighten and bring the wiping member into a position shown in Fig. 1 to repeat the wiping operation on a successive portion of the work- It will be understood that as the wiping operation of the illustrative machine is performed while the hammer is out of engagement with the work the effect of the wipe is likely to be both extensive and efiicient.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent of the United States is:

1. In a progressive folding machine, a folding mechanism, a work-gripping and feeding mechanism movable toward and away from the folding mechanism, a wiping member swingably supported on the machine from a point above the work, and a connection between part of said work-gripping mechanism and said wiping member arranged to swing it across the margin to be folded prior to the gripping of the Work to feed it.

2. In a progressive folding machine, a hammer and anvil movable toward each other to grip the margin of the work and swingable forward and back to feed the work, a hanging wiping member swingable across the margin of the work just ahead of the hammer, and a connection between the hammer and the wiping member to move the latter across the margin of the folded work.

mechanisms to cause the wiping member to move 5 across the margin of the work just after it has been folded.

4. In a French-binding folding machine, means for turning up the binding, a swingably mounted wiper member, a connection to an overhanging part of the machine to pivotally support said wiping member for movement from front to back and laterally, a hammer-and-anvil feed mechanism, and a link between said hammer and an intermediate part of said wiping member to swing it across the binding after the latter has been turned up and before it is gripped by the hammer.

5. A progressive folding machine provided with a frame, means carried by said frame for pivotally supporting a swingably mounted depending wiper member, means for turning up a margin of the work located ahead of the wiping member, means for feeding and pressing the work located beyond the wiping member, means for swinging the wiper member to move across the work just ahead of the gripping mechanism, the support for said wiping member including a ball and socket joint permitting movement of the wiping member with respect tothe work along a four-motion path.

6. In a progressive folding machine, a frame a member swingable about an axis extending transversely to the margin of the work, means carried by the frame for pivotally supporting said member, a ball yieldably carried thereby, a wiper member swingable on the ball, and a hammer and-anvil feeding mechanism, said hammer having a slotted portion carrying a link which is pivotally attached to said wiper member.

'7. A progressive folding machine provided with a frame, a hammer-and-anvil feeding mechanism for pressing the work and carrying it forward, folding mechanism for turning up the margin of the work, said folding mechanism including a creaser foot slidably mounted on the frame, a finger lever on said frame connected to said creaser foot to raise it for the insertion of a new piece of work, a wiper member swingably supported upon said finger lever, and a link connection between the wiper member and the hammer of the feeding mechanism whereby the raising of the creaser foot by actuation of the finger lever is also effective to raise the wiper away from the work.

ERNEST H. SIMMS. JOHN RICHARD AINSWORTH.

No references cited.

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