US1468549A - Die - Google Patents

Description

C. T. WOOTTEN sept. 1s, 1923.

DIE

4 Sheets-Sheet 2 Filed Dec. 24, 1920 sept. 18,1923.

A C. T. WOOTTEN DIE Filed Dec. '24 1920 4 Shets-Shet 3 Sept. 181923,

I. c. T. WQ01-TEN DIE 4" sheets-Sheet 4 Filed Deo. 24 1920 I Il. il

Patented Sept. l, 1923.'

narran stares K tisana earner erstes.

CHARLESvT. WOOTTEN, DECEASED, LATE OF PHILLDELPHIA, PENNSYLVANIA; BY DAVID BOWERS, EXECUTOR, OF- LAITREJLV SFRINGS, NEW JERSEY, ASSIGNOR TO MANUFACTURING COMPANY OF AMERICA, OF PHILADELPHIA, IENNSYLVANIA,

A COlltl?ORATION 0F PENNSYLVANIA..

DIE.

Application filed December 24, 1920. Serial No. 433,001.

T 0 all wh-omit may concern:

Be it known that @Harmes T. lVoor'rnN, formerly a citizen of the UnitedStates, residing in Philadelphia, Pennsylvania, 'but now deceased, did during his'litetime invent the Die of which the following is a specilication. A

This invention relates to a novel combination et parts constituting a die particularly designed to shape the bodies of sheet metal boxes from previously formed, box-like blanks, and one object of said, invention is to provide arelatively simple and substantial device for bulging or pressing out- `wardly a portion of the sides of the box `blank in order to Yprovide the same with a neck for the reception of a flanged cover the arrangement ot parts being substantial, durable and so designed and assembled aste perform their desired `functions without wrinkling or cutting the sheet material ot the blank. Y

It is further desired to provide a die having the above characteristics which will 'draw the metal of the bottom ot the box blank in such manner as to provide the latter with a panel either at the same time that its sides are drawn to form a neck for the reception ot the flangesotl a cover or at some. other time, the whole being so constructed and designed that the linished box body shall be perfect in form, i. e.,-without tendency to buckle or warp and free from wrinkles or folds.

These Aobjects and other advantageous ends I attain as hereinafter set'forth, refer ence being had tothe accompanying draw A ings, inv which,

Fig. l 1s a side elevation of a die constructed in accordance with my invention;

Fig-2 is a side elevation of the die used with the die otlFig. l;

Fig. 3 is an inverted plan ot thecde `shown in Fig. l;

Figs. 4 and 5 are vertical sections on the lines 4t-4 and 5 5, Fig. 3;

Fig. 6 is a central vertical section of the lower die shown in Fig. 2;

Figs. 7 and 8 are perspective views of one fof thetour outer die'elements forming part of my invention; y i

Figs; 9 and 10 are perspective views off' one ot the our'mner die elements;

extending undercut guideways.

i Figs. 1l and 12 are vertical sections on the lines ll-ll and 12-12, Fig. 3;

Fig. is a fragmentary plan of the lower die;

Fig. 14 is a plan of the sheet metal blank as cut from flat sheet material;

vFig.vl5 is a perspective view of the bonv blank upon which my in-vention is designed to operate; and

Fig. 16 is a perspective view of the finished box body.

In the above drawings, the die constituting my invention -is shown in the present instance as having a head 1 of cylindrical form and provided with an outwardly Vextending rectangular iange .2 which has a two part rectangular depending sleeve 3 rigidly held to it by a series ot bolts 1l. The lower inner edge oit said sleeve is inwardly and upwardly bevelled as indicated at 5 and in the chamber defined by it and by the flange 2 or" the head is mounted a vertically slidable block 6 acted on by springs 7 between it and said flange, tending to force said block downwardly. Studs 8 having heads counter-sunk in the flange Q, extend through the latter into the block 6 to limit its downward movement under the action of the springs.

The block G has a central opening through x which extends a square pyramidal member where it has mounted on it a pair ofretaining nuts l1. These rigidly hold said member with its diagonals midway between the diagonals of the sleeve 3.

The pointed or pyramidal end of the member 9 extends below the block 6 which has formed in its under face two diagonally In each guideway Vare mounted two pairs of forming dies of which the dies l2 and 13 of each pair are operative between the pyramidal member 9 and the inclined face 5 ot the sleeve 3, being normally pressed apart by springs 14 and ot such dimensions that their adjacent portions are spaced apart as long as the supporting block 6 is in its lower position.

Each of the outer die blocks 13 has an L- shaped forni and its outer edges are bevelled or inclined so as to lie parallel and Cooperate with theinclined face of the sleeve 3. Similarly the inner sides or taces ot the die blocks 13 are likewise inclined to he parallel and cooperate with the inclined sides ot the member 9. The arrangement of lparts is "such that Vwhen 'the die blocks 12, and 13,

with vtheir supporting block` (3, are 'forced upwardly toward the head 1, the sleeve 3 Y and pyramidal member 9 act to iorce the ldie blocks ot each pair toward earch other,

against the action of the springs 14, and when said parte more away from the head, the die blocks oit each pair are'separated by said springs. The tour die blocks 13 when moved toward each other bythe action ot the springs 1/1, are of such dimensions as to freely enter box blank or" the construction shown in F 15, 'and they project below the plane ot the under faces oi the outer die blocks 13 is formed with a blocks 12.

The blank body shown in 15 is formed by a suitable machine from a flat sheet metal stamping ai having the outline shown in F lll, and-by said machine its four projecting parts are turned at right -angles and their adjacent edges are interflocked as indicated at :132.

The bottoni fc3 and sides aft are plane and id blank, in order to be operated on by the die above de-V scribed, is mounted ina suitably supported lower die 15 having a. cciuiralrectangular recess, at the bottom of which is mounted a die block 17 (Figs. Gand 13) formed with a marginal depression extending around its four-sides.V y

In accordance with my invention, the upper portions of the outer sides of each ot' the die blocks 13 have a iat marginal depression 20 in each of theirtwo operative sides, and the lat faces ot these depressions he 1n planes including the adjacent bottom edgesV 21 respectively. The portion of the two die blocks ot' each pair is'such that when they are moved togethenthe laces 2-1 and 25 of the block. 12 cooperate with the faces 2O and 22 oi the block to form the box vbody side between them. Y

The under 'face of cach ot the in nerdie 26 adjacent its two outer edges and .has Vthe fremainder otite under tace fdepre'sscd, so

placed in the hollow of that after a, box blank m1, Fig. 15, has 4been the lower die 15, the

tions, as indicated at acj limshed box body Vhas a neck formed by its proJecting rib depression ot the upper die bymeans of a suitable press'ram'or plungercauses therinnerA die blocks V13 to enter-said blank and en- ,gage the bottom thereof, at the Sametime that the dat lower faces ofthe die blocks 12 engage the fiat upper face ot the lowerdie 15. Thereafter the continued descent of the upper Vdie causes the bottom x3 of the blank to -be compressed between the die block 17 and the die blocks 13, so that taisV is not only formed Vwith a panel as shown in Fig. 16, but it is rigidly gripped and held dat, so that any warping or irregularities of its surface are eiiectually removed.

Prior to this final action, however, the inclined surfaces of the sleeve 3 and central member 9 have acted on the pairs of'die blocks 13 and 12'. Vso that while the upper portion x5 of each sideof the box blank is rigidly held between the die faces 25and 20,

the lower or Vmain portion :a'oteach side ot' the blank is bulged or forced beyond the plane including the bottom edge oit the side and saidunaltered upper pori As aresult the portions fc5, belowV which is a shoulder m7 whose width is such that inthe present instance (though'not necessarily) the flange of the lid or cover tted onto said neck has its outer surface substantially Hush or in "outwardly Y the same plane with the outer surface of the Y y adjacentportion :06 of said side,fbelo w which it is inclined inwardly to the bottomf edge of said side. -The raising of the upperldie permits the springs 14- to separate the die blocks 12 and v13 of each pair so that the iin'- ished box body shown in F 16 is released and may be removed.

I claim:

slidably mounted in vsaid undercut guide- *ways; asleeve on the head formed to actuateone set of the dieV blocks; and a centrally placed member for actuating the dieblocks of the inner set toV cause thepsides ofa box body outwardly beyond an unaltered marginal strip extending around the'top edge ofsaid body.

2. The combination 'of a head; a block mounted to move verticallyon-the head' having undercut guideways; two sets of coact- V ing die blocks slidably mounted in said un-v dercutguldeways; a sleeve mounted on the a Y YYY l. The combination of a headhavingVY Vundercut gu1deways;.two'sets of die Vblocks them to co-act withV VVthe die blocks of the outerfset in bulging headand Vhaving an inclined portion coactingwith the die blocks of one set; aeentr'al- Y ly placed pyramidalgmember positioned to cooperate withY thejdie blocks of the inner set; andmeansfor supporting a boxV body inf position to beV gripped' between the Ydie 1 blocks of said two'sets v p 3. Thecombinationof a supporting vstructure; a block yieldably mounted thereon and formed with undercut guideways; two sets of cooperating die blocks having doyetail portions slide-bly mounted on said guideways; a sleeve carried by the supporting structure and formed With an inclined surface coacting with the die blocks of one set; a pyramidal structure mounted to expand the die blocks of the inner set, and means for supporting a box body. Y

4. The combination of a supporting,` head; an outer and an inner set of die blocks, slidably supported by said head, said head and die blocks having coactingoverliung and undercut portions Wbereby said blocks are lield to the head; means for simultaneousl expanding the inner die blocks and contracting the outer die blocks, the inner die blocks being` formed to project beyond the faces of the outer die blocks; and a structure for supporting` a box body in position to be acted on by the die blocks.

5. The combination of a supporting head; an outer and an inner set of die blocks slidably supported by said head; means for simultaneously expanding the inner die blocks and contracting the outer die blocks,

the inner die blocks being formed to project beyond tbe faces of the outer die blocks; and a. structure for supporting a box body in position to be acted on by the die blocks, the latter being formed to cooperate with the inner die blocks to iform a panel in the bottoni of the box body` 6. The combination of a supporting head g an outer and an inner set of die blocks slidebly supported by said head; means for simultaneously expanding the inner die blocks and contracting the outer die blocks, the inner die blocks being formed to project beyond the Jfaces or" the outer die blocks; and a structure for supporting a box body in position to be acted on by the die blocks, the latter being formed to cooperate with the inner die blocks to Jforni a panel in the bottom of the box body at the same time that the two sets of dies cooperate to bulge outwardly the sides of said body below an unaltered top marginal portion.

DAVD BOX/VERS, Execute/r of the last will md testament of Charles T, "Wootten, deceased.

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