US2510208A

US2510208A - Channeling and lip setting machine

Info

Publication number: US2510208A
Application number: US784866A
Authority: US
Inventors: Frederic E Bertrand
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1947-11-08
Filing date: 1947-11-08
Publication date: 1950-06-06
Anticipated expiration: 1967-06-06

Description

June 6, 1950 F. BERTRAND 0 CHANNELING AND LIP SETTING mcums I 4 Sheets-Shea 1 Filed NOV. 8, 1947 fnvenfor mdericEBer'frand Jim: 6, 1950 F. E. BERTRAND 2,510,208

CHANNELING AND LIP SETTING MACHINE 7 Filed Nov. 8, 1947 4 Sheets-Sheet 2 Inventor Frede z'aEBer tmna I Y I June 6, 1950 F. E. BERTRAND CHANNELING AND LIP SETTING MACHINE 4 Sheets-Sheet 3 Filed Nov. 8, 194'? Inventor 'FrederZcEBerzmnd June 6, 1950 F. E. BERTRAND CHANNELING AND LIP SETTING MACHINE 4 Sheets-Sheet 4 Filed Nov. 8, 1947 Inventor FredericEBer franc! Patented June 6, 1950 ED STATES ATENT QFFliCE.

FredericE. Bertrand, East Lynn, Mass, assignor to United ingt'on,.l I. J., a

Shoe Machinery corporation of New Jersey Gorporation, Flem- ApplicationNovember 8, 1947', SeriaLNo. 784,866

fllaims. 1.

This invention" relates". to machines for. operating'uponshoe'solesiand' is herein illustrated and described as embodied in:achanneling and lipgsetting machine of the type disclosed'inUnited States Letters Patent No. 984,773, granted February 21', 1911; upon the application'of W. C. Meyer. Such'machines; are provided with apair of channeling" knives which form and partially raiserchannel lipswuponthe. surface of an insole and with.a-device'forpressing these lips together back-to-back. to forma sewing rib, the material from which the lips, have .heenformed having previously been coated by cement to cause. the lips to. adhereJOgetherj to form an. upstanding rib. Inasmuch as the; outlineof, a sole is curved, it'isimportant in thesemachines toprovidefor such an arrangementoffthe.workreng aging meme bers as to. avoid interferencewith the feedingof. the soleby reason oisuch curvature.

It is an object'of the present inVentin,to pr.0- vide an improvedmachine'or the type. under: consideration so arranged; astoenable the sole. to feed freely, and without. damagetothe. channel lips, notwithstanding. the curvature. above. mena tioned.. In accordance. with this-,.o.bject, a.feature of. the. invention. consists. in..the; provision of. a. lip setting. device: in. the form of. a. pair of gripper. jawswhich. area pivotally mounted upon a common fulcrum and-'whichare swungtogether to :setthe -lips andthen .separated'to remove .bothjawsfrom? the vicinity of that portion: of; therib which; has just been formed; therebyavoiding interference between the gripper-jaws and the rib asthesole;is%beingfed. As: shown herein, the lip-setting gripper jaws; are spaced}. in the direction of; feed ofi the.- work; 23501088 to; the channeling. knivesv as permittedi by: considera;- tions; of reasonable clearance: Because: of such close: spacing: oft: the: gripper:- j awsg: to: the. knives; thewturning, of; the: sole around? the'imflr sharply. curved: portions-2 will not appreciably. swing; the raised channel lipszlaterallyrfrom' the common centerslin'e'.ofitheichanneling knives andithegripper'iaws.

These:andiotherefeaturesiof the invention will appear more fully from the following detaileddescriptiont-t'osbe rea'd -inzconnectiom with the accompanying drawings -ian'd' will he -pointed out inthe appended claims;

Referring now to the ac'companying-' drawings:

Fig: 1% i512. .front elevation of thework engaging' instrumentalities oi an illustrative machine embodying the: invention;

Fig; 2 is .assidelelevation; lookingin a direc- 2 tion opposite to that in which the work isied; of the parts shown in Fig. 1; v

Fig. 3 is an angular view'of various work engaging members and a carrier slide-upon which they. are mounted;

Fig. 4 is a side elevation, looking;inthedirec tion of feed, showing the presser gage and the channeling knives; and v V Fig. 5 is a sectional viewtaken onthe-line'-V-V of Fig; 1;

The work-engaging instrumentalities of the illustrated machine comprise a work table I0 upon which a. workpiece W inthe form of'an insole is intermittently advanced while in" engagement with a pairof channeling knives. If and Hi. These. channeling knives serve to cut and also partially to raise; a' pair of. channel lips from the surface of the insole; which lips are further raised and pressed together back -to-back, by'a pair of gripper. jaws l6 and 1.8; to; form at sewing-rib R. In order to cause the channel lips to adhere together to. formthe rib R; the portion of the surface of the sole from'which these. lips are cuthas previously been coated with cement; The height of the. knives i2 and M" in relation to the'upper surface. of the work piece W is'determined by, a presser gage 20. The feeding of the work piece is effected by a toothed" feed foot 22 (Fig. 1). An edge gage 23 (Fig. 2) guides the workpiece in its progress past the knives iz'and- Hl. The work table Miami the edge-gageof the illustrated machine are similar. to corresponding portions of the machine disclosed in Letters Patent No. 984,773 above mentioned, except for the fact that in the machine herein illustrated the worktableyis not driven but'is allowed to rotate freely as the work is-fed;

The supporting structure of the illustrated machine comprises a frame 24.

The'feed foot 22. which feedsthe'soleW step by step, is-mounted upon-thelower'end of a.tele= scoping spring-yielding rod 26 which recipro cates in a pair ofbearings 28 carriedEby-a-bracket 3B. The component of movement ofithe" feed foot 22 in the direction of feed is. provided" by a crank pin 32- eccentrically' mounted in* the: end" of a driven shaft'and rotatably engagingalbearfing in-the bracket 3B; The heightwise component isderived from a crank arm 34 extending from a rock shaft 33; Thefeed foot 2'2ftogetlierrwith' its operating mechanism is sirnilanto'the'feed foot 4 disclosed'in United states LettersPatent No. 1 252348; granted-'Januaryl; 1918'; uponztiie application of A; E. Johnson; The crank pin: 32 and=the rock shaft-36 ofv the' 'machinehereiir illustrated correspond respectively to the crank pin 50 and the rock shaft 54 disclosed in Letters Patent No. 984,773 already mentioned and referred to in the patent to Johnson.

The channeling knives I2 and I4 are mounted indirectly upon a slide 38 which is positioned over the work table II! and guided for heightwise movement in a block 40 secured to the frame 24 by screws 42. The slide 38 is retained in its guideway by a cover plate 44 which is secured to the block 48 by screws 45. A gib 45 (Fig. 5), which may be tightened by screws 41, prevents looseness between the slide and its guideway. Housed within a bore in the slide 38 and having its lower end pressing downwardly against the slide is a coil compression spring 48, the upper end of which bears against a washer 58 which is backed by a screw 52 threaded for adjustment down through a lug 54 extending from the cover plate 44. The pressure of the spring 48 can be varied by turning the screw 52. A lock nut '56 holds the screw 52 in adjusted position. The extent to which the spring 48 can urge the slide down in the absence of a work piece on the work table I is determined by a stop screw 58 indirectly carried, as will later appear, by the slide 38 and having its lower end engageable with the top of the guide block 40. The operating level of the slide 38 is determined by the presser gage 20, which is carried by the slide and has its 1ower end resting upon the upper surface of the work piece W. The presser gage 20 thus determines the heightwise position of the knives I2 and I4 and, therefore, the depth of out which they make with respect to the upper surface of the work piece. To facilitate insertion and removal of the work piece, the slide 38 may be raised by a lever 80 which is fulcrumed upon a pin 82 extending between a pair of ears 64 formed on the guide block 40. The lever 80 extends forwardly into a slot formed in the guide block 40 and carries upon its forward end portion three gear teeth 68 which mesh with gear teeth 88 extending rearwardly from the slide 88. Connected to the lever 60 is the upper end of a treadle rod I0 the lower end of which is connected to a treadle (not shown) by means of which the operator can raise the slide 38 when he so desires.

The presser gage 20 (see Figs. 1, 4 and is mounted upon a block I2 which is integral with and extends laterally from the guided portion of the slide 38. The presser gage 20 has a sliding, dovetailed engagement with the block I2 to provide for heightwise adjustment. A gib I4, dovetailed complementally to the presser gage and secured to the block I2 by screws 76, engages one side of the presser gage. Heightwise adjustment of the presser gage is effected by means of a pin 18 which is eccentrically mounted in the end of a shaft 80 rotatably mounted in the block 12. The pin I8 extends through a horizontal slot 82 formed in the presser gage to force the presser gage to partake of the heightwise component of move ment of the pin, the slot 82 serving also to accommodate the horizontal component of movement of the pin. Capstan holes 83 (Fig. 5) in the pin 78 facilitate turning of the pin and its shaft 80 to adjust the height of the presser gage 20 relatively to the slide 38. A set screw 85 holds the shaft 80 in adjusted position. Formed in the lower end portion of the presser gage 20 is a recess 84, the purpose of which is to provide room for'the foremost point of the feed foot 22 a the latter is completing its feeding stroke. Formed in the under or work-contacting surface of the 4 presser gage 20 are a plurality of grooves 86 extending in the direction of feed of the work, the purpose of these grooves being to leave as much of the surface of the work piece untouched as possible and thereby avoid scraping off the cement which has previously been applied.

The channeling knife I2 (Fig. 3) is mounted in a guideway formed in a block 88, this guideway being inclined and having components which are heightwise and transverse with respect to the direction of feed of the work, The knife is clamped in its guideway by a clamping screw 90, the precise adjustment of the knife in its guideway being determined by a screw 92 threaded through a portion of the block 88 and having its end in abutting engagement with the upper outer end of the shank of the knife I2. The block 88 has a dovetailed engagement with a block 94 whereby the block 88 can be adjusted in a direction parallel to the line of feed of the work. The block 88, which is partially split by a kerf 95, is secured in its adjusted position by a clamping screw 96 threaded into the block 88. A locating screw 300 (Fig. 4), threaded into the block 94 and having a head the inner surface of which is engageable with the block 88, determines the position to which the block 88 is to be adjusted. The block 94 has a dovetailed engagement with the block portion '52 of the slide 38 for the purpose of enabling it to be adjusted transversely with respect to the line of feed of the work. The transverse adjustment of the block 94 is determined by a locating screw 404 (Fig. 4) threaded into the block and having its end engageable with a lug 402 depending from the block portion I2. The arrangements for clamping the block 94 in its adjusted position, while not shown in the drawings, are similar to the clamping arrangements of the block 88, except that the clamping screw of the block 94 is countersunk.

The channeling knife I4 is mounted in a block 98 with provision for inclined adjustment of the knife in a direction having components which are heightwise and transverse with respect to the direction of feed of the work. The knife I4 is clamped in its adjusted position by a screw 91 (Figs. 1 and 4) similar to the screw 90. and its precise adjustment is determined by a screw 99 similar to the screw 92. The block 98 is similar to the block 88 and is carried by a block I00, being dovetailed thereto to provide for its adjustment parallel to the line of feed of the work; and it is clamped in its adjusted position on the block I00 by a screw I III. The adjusted position of the block 98 is determined by a locating screw 30I similar to the screw 300. The block I00 is similar to the block 94 and is similarly carried by the block 12 with provision for adjustment transverse to the line of feed of the work. A locating screw 400 (Fig. 4) similar to the screw 404 determines the adjusted position of the block I00. It is thus evident that the knives I2 and I4 can each be adjusted independently of the other heightwise, transversely of the direction of feed of the work, and parallel to the direction of feed of the work.

The gripper jaw I6 is integral with a block I02 and is connected thereto by a shank I03 (Fig. 3) which extends toward the knife I2. The jaw I6 extends down from the shank I03 and has a workengaging face I05. The block I02 is in tongueand-groove engagement with a block I04 to provide for its adjustment transversely of the feed of the work, being secured in adjusted position on the block I04 by a clamping screw 93 threaded lntmthe; block; H121 and: .extendingrthmughr a1 slot in the: block; I84: .Tihaeblock; I04:.hass aat-ongjiee andvgrooyer engagement: withi aiblockr I061 ene able 'bhBrblQOkl I04: toibeza'diusted parallehto the direction: 06. feed of; thework, .thesblock I041; beingi.secunedaimitsradjustedzpositiomcn the block I=86r-birawlampingzscrew: IUZIr. Integral with: and extendingrfromi,the-block: I06:- are. au pair: of: ears I418 whichxpivotallytengageza-apin II'0;..

Thetgripperjawrlilriszsimilar to: theigripperjaw I64 andi'hasi a work engagingsface; I 09 opposed to the: worle-engagingrface I05. The jaw." I8-is instegralljt' connectedrto; aeblock: .I2I2xb'y azsha-n'kz M I similar; to: the: shank: I035- 'Iiha. block I:'I'=2 has:- a tongue-andegroove engagement withax block; N34 to; enable :the gripper: jawto: .be a adjusted: transverfieiyiofithfi'finfiiflf 'fEd'OfithBlJNOlkl A- clamping. screw:- I I3: secures-the; bloclc H25 in. adjusted positiom on the-block; M14; The 'block' I I4. has a tongue-andgroovesengagement with .ablock. I I6 toaen'abla-themlock: I I4: to; be; adjusted parallel-to the: direction of. feed: of' the; work. A clamping SOLGW? I -I 51 maintains; theblock. I I4: inadjusted position Ol'lLlShGi-blOCkilI 5;. Theeblock: I I6 has a pair 01- cars:- I I8 which: are pivotally-i mounted upon the pin I I0.

Thelower: endloi theipresser gage bears upon that portion of the insole R which is just about to be formedinto-channel lips by the knives I-Zand; l4,- and: the gripper jaws I6 and I8 operate upon the channel lips close-to thelocality at which theyhavebeencut-andpartially raised by the knives. The spacing in the direction of feed of the work, between the presser gage, the knives;- and the gripper jaws; is as close asparmitted-byconsiderations-ofreasonable clearance.

The=pir1- I I0 is-secured betweena pairof ears I20 (Fig;- 3) which depend from a block I2 2. For-med omthe-upper-pertion of-ithe block. I22 is dovetail slide1('Fig;'2)1 whichvengages a dovetail guideway in the lower portion of a foot I24 to enable the block I22 to be adjusted in the direction of f'edi'df'the work. This'dovetailislide has a l'ongitutlinafkerfto permit itto be expanded laterally by a screw I25 (Fig. 3) having a conical point engaging a conical end of a bore in which the screw is threaded. When the screw is tightened in the block I22, the two halves of the dovetail Slide are forced into clamping engagement with their guideway to hold the block in adjusted position. A stem I26 (Fig. 2) integral with the foot I24 extends upwardly therefrom into an oversized bore I2'I provided in the slide 38. A bore of smaller diameter coaxial with the bore I21 is formed in the upper portion of the slide 38 to guide the stem I26. The stem I26 has an upper portion I28 of reduced diameter which is guided in a bore of still smaller diameter extending downwardly from the top of the slide 38. The portion I28 extends up above the top of the slide 38 and has threaded upon its upper end a nut I30 which supports the pin H0 and adjustably determines the height of the pin relatively to the slide 38. A washer I32 is interposed between the top of the slide 38 and the nut I30. A set screw I33 bearing against a fiat surface on the reduced portion I28 of the stem I26 holds the stem in adjusted position.

The mechanism for operating the gripper jaws I6 and I8 includes a pair of pins I34 and I36 which extend, respectively, from the blocks I06 and H6 in a direction parallel to the line of feed of the work. A tension spring I38 having one end anchored to the pin I34 and its other end anchored to the pin I36 extends transversely of the knives I2 and theilirre of; feed: of? theworlca-nd .-,urgesithe;;iaws ISiandHMapartas vfar aszpenmitted by; the emgagementofrtheupper portionssofi thezblocks I06 ands-I48? withlthe" block I22... Mounted:;for free rotation: upomtheqshanlc of: the-pin I34 isaroll I4I1*(Fig- 2)) and-similarlymountedzon ;the shank OfrthGfQiIli I 36 aissaroll: I 42-. Recessesrareprovided in thezblocks; I06? and; H16: to. accommodate the rolls; I40; and. I42, respectively-,1 the periphery of each: roll extending somewhat. above th'esupper mostmortion of its associated block. A foot I44 carried..by-- a? tubular. stem I46 has an undersurface which; is engageable with both.:,the' rolls I40 and; I421. The stem I46 .is integral withandi-extends upwardly frompthe. foot I44 and is guided in-thebore; I2'I ..v ThGrIOWGI'UDOI'fiOIITOf' the stem I26wfits the-interior. of the tubularstem I46 and isguidedfiherein: v

Pivotally; attached to-the foot.- I44 is the lower endzofaa connecting rod I48, (Figs. 1 and 2) havingitsvupper en'd. pivotally attached to a horizontal arm of a bell crank I50. This bellcrank I510;. whichispivotally mounted upon. a tulcrum pin: I52, has an upwardly; extending ar-m pivotally attached to one end of a rhorizontaleccnnecte ing; rod; I54.. The opposite: endoftheconnecting rod I54 is pivotally attached to azcrank arm I56 extending; from the rock; shaft 36.. The fulcrum pin; I52=is carried by a bracket I58. which issecnredby screws I60 toithe'slide38i Therstop screw- 58, already; mentioned, .for limiting the downward-movementoi' the [slide 38; is threaded down through a. horizontal: portion of thesbracket. I58

To; operate: the. machine; the; treadle is' first depressed to raise: the slide 38; and with. it the presser gage 20; the knives I-2- and; I4-,.and' the gripper'jaws I6: and. I8; An insole W- is then placed uponqthe. work table; I0. with: theedge: of the; insolev against. the, edge gage. 23,- and: the treadlezis; released to permitthe members,- above mentionedto descend. into {their--. operating: positionss. Thevfeemfoota 2-2 operates-to advance/the insolesintermittently causing. the knives I2. and I4 to cut into the insole and, with each advancing movement of the sole, to extend the cuts they have already made to form the channel lips. The level, with respect to the upper surface of the insole W, at which the knives I2 and I4 operate is determined by the presser gage 20. The spring 48 holds the presser gage 20 in continual contact with the work piece during the operation. The work piece, during each feeding movement, slides against the presser gage 20. While the sole is thus being advanced, the gripper jaws I6 and I8 are held separated by the spring I38. While the feed foot 22 is raised in the course of its movement of retraction, the presser gage 28 holds the sole stationary and the foot I44 descends to engage the rolls I40 and I42, thereby positively swinging the jaws I6 and I8 toward each other about their common fulcrum pin Hi! to set the partially raised and adhesively coated lips, causing them to adhere together to form the sewing rib R.

Inasmuch as the jaws I6 and I8 of the illustrated machine are separated by moving them both away from the rib R, these jaws will not interfere with the feedin of the sole, particularly around sharply curved portions such as a pointed toe. Because of this freedom of interference from both gripper jaws, soles having pointed toes can be fed freely. Furthermore, the gripper jaws I6 and I8, being spaced as close to I4 as permitted by clearance,

are enabled to operate upon the lips close to the locality at which the lips have been partially raised by the knives and before the lips, as the sole is turned, can be swung any appreciable distance oif center with respect to the common center line of the jaws at sharply curved portions of the sole. The gripper jaws will therefore close upon the lips centrally without tending to pull the lips to the right or left of the line of feed, and will thereby avoid any danger of tearing the lips. The jaws l6 and 18, by reason of the fact that they reach all the way (allowing for slight clearance) down to the bases of the channels, are enabled to grip the lips over their entire height, thereby causin adhesion to take place over the entire areas of the opposed surfaces of the lips. The presser gage 20, having grooves 85 in its work-engaging under surface leaves a considerable portion of the coated surface of the work piece untouched and thereby avoids removing any considerable quantity of the cement.

Having described my invention, what I claim as new and desire to secure by Letters Patent 01' the United States is:

1. In a machine for operating on shoe soles, means for cutting and partially raising a pair of channel lips on a sole, a pair of pivoted gripper jaws positioned as close to said cutting means as clearance permits for gripping the lips between them to set the lips, a spring interposed between the gripper jaws for yieldingly holding the gripper jaws open, and means for intermittently closing said jaws positively to set the lips.

2. In a machine for operating on shoe soles, a work support, means for feeding a sole on said work support, a slide guided for heightwise movement above said work support, means for gaging the height of said slide relatively to the upper surface of the sole on the work support, a pair of knives carried by the slide for cutting channel lips in the sole as the sole is fed, a pair of gripper jaws for gripping the lips between them to set the lips, a pivotal mounting for said gripper jaws carried by said slide, and means for swinging said gripper jaws about said pivotal mounting to cause the jaws to close and open repeatedly for the purpose of setting the lips in closing and permitting the feeding of the sole while open.

3. In a machine for operating on shoe soles, a work support, means for feeding a sole on said work support, a slide guided for heightwise movement above said work support, a presser gage engageable with the upper surface of a sole on said work support and carried by said slide to gage the height of the slide, a pair of knives carried by the slide for cutting channel lips in the sole as the sole is fed, said presser gage being positioned to engage that portion of the sole which is just about to be operated upon by said knives, a pair of gripper jaws for gripping the lips between them to set the lips, said presser gage, said knives, and said gripper jaws being spaced as close in the direction of feed as clearance permits, a pivotal mounting for said gripper jaws carried by said slide, and means for swinging said gripper jaws about said pivotal mounting to cause the jaws to close and open repeatedly for the purpose of setting the lips in closing and permitting the feeding of the sole while open.

FREDERIC E. BERTRAND.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 843,975 Thoma Feb. 12, 1907 984,773 Meyer Feb. 21, 1911 1,404,200 Grush Jan. 25, 1922 1,778,963 Shaffer Oct. 21, 1930 2,086,232 Opie July 6, 1937 FOREIGN PATENTS Number Country Date 20,801 Great Britain 1912 211,776 Germany July 15, 1909