US1555733A - Die-separating means - Google Patents

Description

Sept. 29, 1925. 1,555,733

R. L. WILCOX DIE SEPARAIING MEANS Filed Oct. 51, 1921 Patented Sept. 29, 1925.

RIGHARD- LESTiER" wILcoX, or WATERBURY," commonest} renames To *rH-n WATERBURY BARREL FQUNDRY'ANFMMHINEooIvrrAnY; or WAT-smile c'oia NEGTIGUT, A consort-Arron cor mn-snrana'rms MEANS.

Application filed October 31, 1921. Serial Nb. 511,805.

To cgZZcv/rom it" may concern Be it known that I, RICHARD 'Lns'rnn "W11;-

ooX, a'*citizen of theUiiited State's, residing at lvaterhury, in'ithe' county" of' New Haven and State of Connecticut; have invented certain new and, useful linprovelnents in Die'Sepa'rating Means, of Whiclrthe' fol lowing is a. specification, rei'er'ence being had therein to the accompanying drawings.

My invention relates to die separating means; its prin'cipal object bein to" pro vi'de'siinple mechanism for separating the dies of an-open die header or upsetting machine:

Among other aims and objects of my; in V6I1t1011 he recited" the" provision of a device ofthe character mentioned with a View th compactness and in which the numher of parts are few, the construction 811111316, the c'ost of production small," and efficiency and operationhighi-' a The improvements in the details and arrangament of parts Will lee-apparent from aninspection of the" accompanying drawings, in -connectioir with the description here iria fter contained, andWh-ere'in anemnodt merit of" theinventioh is disclosed for the purpose of 'impa rting a" full understanding ofthe same? I Having more particular reference to the drawings and in connection withwhich like referencecharacters refer to' corresponding parts in the several figures Figure 1 is a front elevation of a pair of'dies' for" a heading machine or the like with a portion of the supportlng mechanism thereforand With'fniy improved sepmating means connectedtherewith;

Figure 2 1sttransversesecnonal V16W thereof taken 1 generallyupon line 2-2" of" Figure 1; p Figure 3"is a persp ectlvewlew of the cam loloc'k i and l Figiire' '4 1s" a from; elevation of a pair of dies, similar to F1gure1, With theseparating mechanlsin apphed to the underside thereof.

It has-heretofore been the practice to separate the dies of an opendie header or upsetting machine atthewire feedline by parting pins,separating pinsor the like, an illustration of such means being shown in Letters Patent {N'ol 1,104,090, dated July 21, 191 1 particularly in Figure 1- thereof, and alsoiin 'lietters Patent No. 1,108,958, dated September 1,1914, a heavy fiat spring-not hown in either of the above patents, bear mg upontheupper end of each of the" part in'g pins or sep'aratin x pins, .Which move in a'path statesmen-L115; a right angle to the movement of the dies. lVith such mech anism the die cap or other part or parts that support the pins must be machined with gr-eat care and exactness and each must be incorrect alignment With each other and the groove formed by the angular corner faces of the dles, When the dies are in proximity to the Wire feed line. If the pins are not so arranged, the lower pointed end thereof will not registerl with said groove,- thus having a tendency w cramp the dies and apply" an unequal pressure thereto 'atdfiferent points" throughout their length. If this occurs, the dies may be separated mo'r'ea-t one end than at theother,

and if perchance themin imuin separation is at'the' in'n'erfend' oftho dies-a defective feedof' the Wire'r'esults' and the endof the Wire'may abut against" the dies and stop the teed-e With the use' ofsuch'pinsthe spring resMS sare'upon'the end thereohis'constant, t1erefore it requires "not only; a pressure sufii'cient to move thefdies and cut off the wire but alsoto resist the pressure of the pin actiiatin'g springs, which pressure is constant" upon the 'top-o'f'on'e of 'the'di'es duringlits entire movement. There is no use for thisfpressure except when the dies: are to1be'--sepa rated at'theywirefed'line, hence more power is necessarily required to actuate the dies.

l l liile"'1nore powerna mechanismis required to move the dies from thewire feed line to the upsetting line, the dies are usually returned by spring pressure, the strength the heretofore"conventional method for separating the dies are obviated in my im proveddevloe, which occupies the minimum amount of not otherwise required space, pressure is applied only when the dies are to be separated, the necessity of line machm-' ing of the parts is entirely eliminated, and in these, and many other ways, produces results that are advantageous and insure certainty and elliciency in operation, and with mechanism that is of comparatively simple design. 7

Having more particular reference to the drawings, numerals 10 and 11 represent the dies, which are of the usual form with corner angular faces 12 which unite to form a V shaped groove substantially as shown in Figures 1 and 1, wherein the dies are near the wire feed line, this being coincident with the line 22 of Figure 1. A. piece of wire designated 13 is shown in section at this feed line.

' feed line to the upsetting line the dies are positively actuated by relatively powerful mechanism to cut off a piece of the wire rod but are usually returned from the upsetting line by spring mechanism.

Referring now particularly to Figures 1 and 2, there is associated with the cover 15 a cam plate 16 which is preferably dovetailed therein and having a cam face 17 thereon which inclines downwardly from the direction of the upsetting line toward the wire feed line. The use of this cam plate as shown is not necessary to the successful op-,

eration of the machine, nor the means for mounting the same in the cover, because the cam face may be formed upon the cover itself or may be secured in any other convenient manner.

The cam block 18 has two faces 19 which meet at their lower ends and are in substantially the same angular relation to each other as the faces 12 of the dies and a cam face 20, which has substantially the same angle as the cam face 17.

This cam block is mounted so that the meeting faces 19 point downwardly and rest against two of the faces 12 of the dies substantially as shown in Figure 1 with the cam face 20 thereon in contact with the cam face 17, when the dies are at-the wire feed line, at which time the dies are separated slightly so as to permit the incoming wire to pass therebetween. hen the dies move from the wire feed line to the upsetting line the cam block 18 travels therewith, and the space, pressure is only applied when required, that is, when the dies are at ornear the wire feed line, and in these and other ways the objections to the mechanismsheretofore commonly utilized for separating the dies are eliminated and many obvious advantages secured.

I have shown in Figures 1 and 2 my improved mechanism as applied to the top side of the dies but obviously it will operate equally as well if applied to the underside thereof as shown in Figure 4:, or if desired, it may be used upon both top and bottom. If used upon the bottom, the cam plate 16 is mounted in the bed plate 1 1 instead of the cap 15*, and the cam face 20 will remain in contact with the fixed cam face 17 instead of moving away from it as when used upon the top of the dies. Otherwise the construction and operation of the mechanism is the same as when the cam plate is above the dies.

There are minor changes and alterations that can be made within my invention, aside from those herein suggested, and I would therefore have it understood that I do not limit myself to the exact construction herein shown and described, but claim all that falls fairly within the spirit and scope of the appended claims. I

Having described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In combination with the dies of a heading machine or the like, of means, for separating the dies,'wherein each die has a face thereon that co-operates with a similar face upon another die to form a groove when the dies are in operative relation to each other; a block having angular faces thereon that move with the dies. and project into said groove when the dies are substantially in line with the wire feed line; and a part having a cam face thereon in the path of movement of said block when the same is substantially in register with the wire feed line.

2. In combination with the dies of a heading machine or the like, of means, for separating the dies, wherein each die has a face thereon that co-operates with a similar face upon another die to form a groove when the dies are in operative relation to eachother; a part having a cam face; and a non-rotat able block that projects into said groove and having contact with said cam face When the dies are substantially in line with the wire feed line.

3. In combination with the dies of a heading machine or the like, of means, for separating the dies, wherein each die has a face thereon that co-operates with a similar face upon another die to form a groove When the 10 dies are in operative relation to each other;

a part having a cam face; and a non-rotatable block that projects into said groove and having contact with said cam face when the dies are substantially in line With the Wire feed line, said cam being formed so as to prevent endWise movement of the block.

In testimony whereof, I have hereunto affixed my signature.

RICHARD LESTER WVILCOX.

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