US1335908A - Die - Google Patents

Description

FOE; MUELLER.

\ DIE.

APPLICATION FILED JAN. 3, I919.

Patented Apr. 6,-

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APPLICATION FILED JAN. 3, 1919- v Patented Apr. 6, 1920.

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. 55 l a if .3968 4? 5"? 2 I r 55:47 5% A UNITED SATES PANT OFFICE.

FREDERICK E. MUELLER, OF MOUNT VERNON,

NEW YORK, ASSIGN OR TO THE NORMA COMPANY OF AMERICA, OF LONG ISLAND CITY, NEW YORK, A. CORPORATION OF NEW YORK.

DIE.

Application filed January 3, 1919. Serial No. 269,484. 7

To all whom itmayconcern: Be it known that-I, FREDERICK E. MUEL- LER, a citizen of Germany, and a resident of the city of Mount Vernon, in the county of estchester and State of New York, have invented certain new and useful Improvements in Dies, of which the following is a specification. o

The present invention relates to improvements in dies, and the particular embodiment disclosed herein, has for an object to provide a die for finishing. lateral flanges on tubular articles, in such manner as to preserve. the shape of the tubular portion without buckling or bulging, and without the formation of any ridges or other marks thereon. A further o'bjectis to provide such a die by which the flanges will form a' square corner with the tubular portion both exteriorly and interiorly.

Whilein the present disclosure, a machine is shown adapted to perform a particular shaped article, it will be understood that the principle of the invention may be employed in the formingof other shaped articles.

With these and other objects in view, an embodiment of my invention is shown in the accompanying drawing, and this embodiment will be hereafter more fully described with reference thereto, and the invention will be finally pointed out in the claims.

In the accompanying drawings;

Figure 1 is a vertical sectional view through the line M (Fig. 2) and showing the press and punch raised and the lateral formingmembers retracted;

Fig. 2 is a plan view of the die member and showing the lateral forming members moved in;

Figs. 3 and 4 are enlarged vertical sec tional views with parts broken away and showing the press and punch engaged with the die member, and the completion position, respectively; and

Figs. 5 and 6 show, respectively, the forms of the article before and after being acted upon .by the machine.

Similar reference characters indicate corresponding parts throughout the several figures of the drawings.

Referring to the drawings. and more par-' ticularly to Figs. 1 and 2 thereof, the die member comprisesa base plate '10, having a central opening 11 therein surrounded by an annular recess 12, in which is set a Specification of Letters Patent.

spaced from the block 13,

Patented Apr. 6. 1920.

flanged central post or block member 13, se-

cured by screw bolts 14. A movable plate the upper surface of the plate, whilethe opening 19 is spaced from the said block.

along a portion of its length, as at 19*. Guide posts 20 are provided upon the base plate 10 and extend upwardly through passages 21 in the plate 15, the said passages being provided with a bushing 22 Adjustable lock nuts 23 are provided upon the upper ends of the guide posts, and an oil groove 24 extends spirally along the length of the said posts. I

Within the rim 16, and upon the plate 15, there are secured by! means of screw bolts 25 segmental plates 26, 27 and 28, conform- .ing at their curved sides with the inner side of the rim 16, and having their apices thus providing three slots, 29, 30 and 31, extending radially from the said block, and in which there are mounted slide pieces 32. A stop 33 having projecting side portions, 34 and 35 disposed adjacent to plates 26, 27 and 28 is secured in the ends of a screw bolt 36, and the slide is'forced toward the same by means of a spring 37, dlsposed in a passage 38 in the slide, a slide pin 39 engaging the block 13.

1 Upon the upper side of the slide pieces, there are secured by means of screws 40 and dowels 41, chuck plates 42, the front ends of which project beyond the ends of the said of the slots by means pieces and are circumferentially recessed as provided at their upper and lower surfaces with lateral circumferential recesses 46 and 47, which form continuous annular recesses in the moved-in position of the slides. The

chuck plates are narrower than the slide are secured upon the said plates by screw bolts 25, the projecting side portions of the said plates 26, 27 and 28 engaging over the projecting portions of the slide pieces and holding them in place.

The post or block 13 is provided at its upper end with a pocket or recess 48, within which there is provided a projecting and depressible head 49, the stem 50 of which extends downwardly throughan opening 51 in the post and base plate 10, a shoulder 52 being provided in the opening above which there is provided on the stem a spring 53, and below which there is provided at the end of the stem a washer 54, or other suitable enlargement, which limits the upper movement of the head. The head in its raised position forms a holder for the article to be shaped, and upon which the same isplaced prior to its being acted upon by the dies. Fig. 5 shows the form of the article at this stage.

he press and punch member comprises a reciprocating head 55, having three depending bars 56 secured thereto by screws 57 provided upon their lower ends with beveled surfaces 58, adapted to enter behind and force the slide pieces 32, and the chuck plates 42 carried thereby, forwardly into engagement with the article, as shown in Fi 3. I

entrally of the head there is provided a punch 59, having a passage 60 therethrough within which there is disposed a shaft 61, provided at its screw threaded upper end with a retaining nut 62, and provided at its lower end with a head 63 of smaller diameter than the'lateral surface 64 of the die. The head 63 substantially corresponds in shape to the head 49- and is of such dimensions as to enter snugly and entirel within the article as shown in Fig. 3 epressing the head 49.

In thefposition shown in Fig. 3, the cylindrical portion A of the article is rigidly held between the head 63 and the chucks, the cylindrical surface of the head and the recessed portions constituting continuous circumferential holding and supporting means for both the inner and the outer surfaces of the said portion A. Sufficient space is rovided between the recessed portion 47 o the chuck plates and the upper surface of the block 13 to accommodate the curved lower flange B of the article, while the upper curved flan e C is disposed between the recessed portion 46 and the lateral surface 64 of the punch.

Upon the further downward movement of the press and punch (Fig.- 4) the movable plate 15 is depressed, moving the chuck plates downwardly relatively to the block 13, while the punch is moved downwardly 'head 63 is projected into the article, whereupon it may be removed, and the next article to be formed placed in position.

I have illustrated and described a preferred and satisfactory embodiment of my invention, but it is obvious that changes may be made therein within the spirit and scope thereof, as defined in the appended claims.

I claim: 1. In a die for shaping lateral configurations on tubular articles, a stationary lower die member, an upper member, a resilient bed adapted to have up and down movement and surrounding said lower die member, holding members supported on said bed and adapted to be moved into engagement with said article to support the same exteriorly during the forming operation, a preliminary depressible positioning means on said lower die member adapted to position the article thereon and means on said upper member adapted to enter within the article, disengaging said positioning means therefrom and supporting said article interiorly during the forming operation.

2. In a die for shaplng lateral configurations on the ends of tubular articles, a stationary lower die member, constituting a support for the article and having an annular shaping portion, an upper die member having an annular shaping portion, a resilient bed adapted to have up and down movement and surrounding said lower die 'member, a plurality of radially disposed stantially continuous annular holding means adapted to support the said article exteriorly during the. orming operation and means carried by said upper member adapted to enter within said article'and form a substantially continuous support for supporting said article interiorly during the forming operation.

3. In a die for shaping lateral configurations on the ends of-tubular articles, a stationary lower die member constituting a support for the article, and having an annular shaping portion, an upper die member having an annular shaping portion, a resilient bed'adapted to have up and down movement, and surrounding said lower die member, a plurality of radially disposed holding means adapted to be projected into engagement with the article to hold the same durillg' the forming operation and provided with holding surfaces constituting a substantially continuous annular holding means adapted to support said article exteriorly during the forming operation, depressible preliminary positioning means on said lower member, and means on said upper member adapted to enter and support said article interiorly during the forming operation, and adapted to remove said preliminary positioning" ;means. from said article.

member, aplurality of radially disposed holding means adapted to be projected into engagement with the article to hold the same during the forming operation, and having at their upper and lower sides annular Sl'lEP ing surfaces adapted on engagement with said article to engage said flanges of said article interiorly, and to cooperate with said shaping-portions of said upper and lower die members engaging said flanges exteriorly to shapesaid flanges .upon the compression of the. parts, said annular shaping surfaces constituting substantially continuous surfaces in the engaged position of said holding means, and means adapted to support said article'interiorly during the forming operation. i

In testimony that I claim the foregoing as my invention I have signed. my name hereunder. 1

FREDERICK E. MUELLER.

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