US1033043A - Machine for making collapsible-tube caps. - Google Patents

Description

.R. L. WILOOX. MACHINE FOR MAKING 'GOLLAPSIBLE TUBE GAPS. APPLICATION FILED SEPT. 5, 1911.

1,033,043. PatentedJuly 16, 1912.

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IJB wigs-- WIT/158858: l/WE/VIOR wwew MMy A A TTORNE V R; L. WILOOX. MACHINE FOR MAKING QOLLAPSIBLE TUBE GAPS. APPLICATION FILED arm. a, 1911.

1,033,043. I Patented July 16, 1912.

WITNESL'SES: I INVENTOR 721W M I wdxuh awa By I A TTOR/VE Y R. L. vmcox. MACHINE FOR MAKING GOLLAPSIBLB TUBE GAPS APPLICATION FILED SEPT. 5, 1911.

1,033,043. Patented July 16,1912

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R. L. WILCOX. MACHINE FOR MAKING COLLAPSIBLE TUBE CAPS.

APPLICATION FILED $11M. 5, 1911.

Patehted July 16, 1912.

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[1 IIVVENTOR wwx my A TTORIVE V R. L- WILGOX. MACHINE FOR MAKING 'GOLLAPSIBLB TUBE GAPS. APPL'IOATION FILED SEPT. 5, 191 1.

' Patented July 16, 191.2.

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IWITNESSESE INVENTOR tinrrnn sra'rns PATENT ost ich RICHARD LESTER WILCOX, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE WATER- BURY FARR-EL FOUNDRY AND MACHINE CUT, A CORPORATION OF CONNECTICUT.

COMPANY, OF \VATERBURY, CONNECTL MACHINE sou MAKING COLLAPSIBLE-TUBE oars.

Specification of Letters Patent.

Patented July 16, 1912.

Application filed September 5, 1911. Serial No. 647,750.

To all whom it may concern I Be it known that-I, RICHARD Lnsrnn 71L- cox, a citizen of the United States, residing at Waterbury, in'the county ofn ew Haven and State of Connecticut, have invented certain new and usefulImprovements in Machines for Making Collapsible-Tube Caps,

of which the following is a specification,

' ed out in the claims.

view of the slide table with the .cent thereto; Fig. 8 1s a sectional plan view reference being had therein to the accompanying drawings.

My invention relates to a new and improved machine for making collapsible tube caps, and has for its object, an'iong other things, to construct a machine for this pur-.

pose that will be entirely automatic in its operation and capable of producing these caps complete, including the thread, in substantially a single operation.

To these, and other ends, my invention consists in the collapsible tube making nia chine, having certain details of construction and combinations of parts, as will be hereinafter described and more particularly point- -Refei ing to the drawings, in which like numerals of reference designate like parts in the several figures; Figure 1 is a front view of my improved machine, partly in section; Fig. 2 is an elevation ofa fractional line A-B of Fig. 1; Fig. (3 1s a fragmentary elevation of one'cnd of'theslide table with the feed stop mechanism; Fig. 7 1s a plan parts ad a of the punch block; Fig. 9 is an elevation of the slide cam; Fig. 10 is a fragmentary plan view of the mechanism for rotating the punch with the mechanism adjacent thereto; Fig. 11 is an elevation of the feed slide cam -Fig. 12 is an elevation of the punch lifter cam, with the rock lever actuated thereby; and Fig. 13 is an end view of the rack slide.

- In the practice of my invention I provide a frame 1, which is mounted upon a suitable standard '2, and within which is rotatably mounted the crank shaft 3, and the reel; shaft 4, said crank shaft having a plate 5 upon one end thereof, and the rock shaft having a similar plate 6. These plates may be made integral with the shafts cit-separate, as desired. Slidable within the ways? is the upper gate 9, and slidable within the ways 8 is the lower gate 10, said upper gate being operated from the crank shaft 3 through the connection 11, and the lower gate 1 0 from the rock shaft 4 through the connection 12. A balance wheel 17, driven- -in the usual manner by a belt, and mounted upon a. shaft 18, upon which is fixed a pinion 19,-that meshesinto and drives a gear 20 fixed upon the shaft 3, is the means by Move which said crank shaft is rotated. ment is imparted to therock shaft 4 from the crankshaft 3 through the connection rods 13 and 14,-the rod 13 being secured at its upper end to the plate 5 nected attheir inner endsto an oscillating plate 15, thatis mounted upon a fixed stud 16.

Within the-lower gate 10 is the hunter collet 21 that is secured in its several ad-- justable positions bythe nuts 22, which are threaded on the shank of said collet and and that-(sai at its lower end to the plateG, and both cone contact with the opposite faces of the opening 23 in said gate (see Fig. 5). Held win in the said collet by a screw24, or other similar means, is the hunter 25. The upper face of the hunter is usually concaved, as shown in Figs. 2 and '3, but it may bemade in any other desired shape, and provided with such recesses or depressions as may be necessary to produce the proper form or design for the'top of the cap.

Within the upper gate 9 is the spindle holder 26 that is secured in its adjusted positions by the nuts 27, which are threaded upon the shank thereof and abut against the opposite faces of the slot 28 in said gate. Adjustable transversely in the head of said spindle holder is :theblock 29, which is held against movement in its adjusted position by the screws 3030,. which are threaded in the gate 9, with their heads impin ing against the opposite ends. of said "b ock. The punch block designated by the nuteeth of win and a shank portion that projects through :lr 29 into the opening in the lower 1 'ie holder 26, of slightly larger diameter than th spindle shank. A punch 39 ed in the spindle 36, and is formed d at its lower end, of the same to thread upon the inside of the A limited lateral adjustment o PUSI ion Oil the spindle 36 is made possible by shifting the block 29- within the spindle holder through the manipulation of the screws 30, and of the punch block 31, through {the manipulation of the screws 33.

The mechanism for importing a rotary love.

mile on comprises a slide bracket 4a) that i ct -ed to the frame 1, and having mounts a rack slide d1, the vh mesh into the teeth of a pinion rotatably mounted upon a stud 218d in said bracket l0 and the cap 44 fined thereto; and a gear l5 fixed to the pinion t2, the teeth of which mesh into the teeth of pinion l6, rotatable upon a stud 45'", also fixed in the bracket 40 and cap lat and having connected therewith a gear 48, the teeth of which mesh into the teeth on the toothed portion 3? of the spindle 36. A reciproratory movement is imparted to the rack slide ll and a rotary movement to the spindle 38 through a cam ltlthat is fixed upon a shaft 50, rotatably mounted in the frame 1, and having a gear 51 thereon, that is driven from the pinionlt), a roll 52 on the rash slide 41 entering the cam groove 53 in the cam/l9. A downward movement is given the spindle 136 by the gate 9, but it is moved upwardly, independently thereof, through the rock lever 54, that is pivotally secured to the frame 1, and having a yoke 55 mounted in its inner end, which projects into. the annular groove in the spindle 36. The spring 56 connecting said roclt lever with a fixed stud on the side of the frame 1,

end of the rock lever 54 by the adjustable connecting rod 63. The spring 56, which actuates the lever 54, is only of sufficient strength to raise the spindle 36 Without creatin undue pressure upon the thread in the finis ed cap, while the same is being withdrawn: therefrom. For this reason the spindle is not moved upwardly by a positive cam motion, which-would be liable to strip the thread.

' Fixed to the frame 1, between the sides thereof, is the slide table 64:, within which is mounted the slide 65, beneath the caps 103, and secured in said slide by the screws 67 is the die 66. This method of securing the die in a fixed position is only one 0ft many ways by which the same result may be accomplished, and I do not therefore, limit myself to this form of securing means.

The hunter and die, when together, form substantially a two-part die, separable upon a line at a right angle to the axis of said hunter and the opening in said die.

i l-reciprocating movement is imparted to the slide from the cam 68 that is fixed upon the shaft 50; a rock arm 69 secured to the frame 1 upon the stud 70 and having a cam roll 71 thereon, which enters the groove 72 in said cam. 68; the bracket 73 fixed to the slide 65 and having a stop screw 7-1 therein, which abuts against the outer end of the table 64, to limit the inward movement of said slide; and a connecting rod 75 hinged at one end to the bracket 7 3, and at the other end secured to the free end of the rock arm 69 by the block 76, which is adjustably se-- cured to said rock arm by the bolt 78 that passes through the slot 79 in said arm, and within which the connectin rod 75 has an cndwise adjustment througl the manipula tion of the nuts 77.- Also'slidably mounted in the said slide table, under the cups 104, is the plate 80 that derives its movement in one direction through the action of the sprin 81 connected with the cap 34 and the arm 2 fixed on said plate. Its movement in the other direction is derived from the cam 83 fixed upon the shaft 3, through a rock lever S l pivotally'sccurcd to the trams 1, having a roll 85 thereon that rests upon the periphery of said cam, a roclr shaft 86 mounted in the depending cars 87 upon the slide'tablc 64, having an arm 88 fixed thereon that is connected with the rock lever 84 through the connection rod 89 that has a limited adjustment in the direction of its length by the turn buckle-90, an urrmfll also fixed to the shaft 86, and a link 92 connected with said arm 91 and the yoke stud 93% fixed in said. plate 80. livotally connectcrl to the inner end of the plate 80 by the screws 95 are the fingers 94 that are 'n'ovidm l'with, curved recesses 96 near their outer 'trce ends, which, when thuliufrcrs are togcthcrflvifli their inner faces abutting against cachother,

form a circle slightly less than the diameter of the blank to be operated upon. Said fingers are drawn toward each other by the spring 97 and are prevented fronrmoving out of their central position by the stud 98, which is fixed in the plate 80 and projects bet-ween the inner faces of said fingers.

Secured in the lug 99, integral with the,

cap 34, is the tube holder 100, and fixed in the upper end thereof is the feed 'tube 101.

In the enter position of the plate 80, the

curved recesses 96 in the fingers 9-1 are concentric with the tube holder 100, the fingers being held open or apart, as shown in Fig. 7, by the contact of the pins 102 in said fingers with the outside of said tube holder. In the inner position of said plate the recesses 96 are concentric with the spindle 36.

I have provided means for holding the' feed slide 80 against movement, so as to stop the feeding of blanks when desired, which means comprises a stop lever 105 fixed on the root shaft 86, and movable in the path of the stop arm 106 pivotally secured to the side of the feed table (lion the stud 107, a stud 108 fixed in said table, and by reason= of its engagement of the opposite ends of the groove 109 in the outer edge of said stop arm, limits the movement thereof, and aspring 110 holding said stop arm in either i of its extreme positions.

When the plate is moving so as to feed blanks, the end of the lcver105 and the stop arm 106 are in the relative positions shown by broken lines in Fig. 6. To stop the movement of said plate, thearm 106 is brought into the path of the end of the lever 105 by moving the same manually from the position shown by broken lines to the position shown by full lines, and for convenience, a handle 111 is fixed thereto for this purpose, which also furnishes convenientmeans to secure one end of the spring 110. I

The knockout mechanism comprises a slide 112 mounted in the puiich block 31 having a knockout pin 113 securedin its lower end, a lever 11 1 pivotally mounted in the bracket 115 that is fixed to the slide bracket 10, and having a roll 116 upon its outer end, which enters a groove in the face of the cam 117, that is fixed upon the shaft 50. The knockout pun sh is located coincident with the up perend of the discharge tube 118 fixed to the underside of the slide table 6 1.

In operation, the blanks, in the form of circular disks, are dropped into the feed tube 101, from which they enter.the tube tightly in the recesses 96 and it is thus carried into a position under the spindle 36.

At this time the lower gate moves n wardly and the hunter 2.5 moves into. the position shown in Fi 's. 2 3 and 5 that is with its' upper surface in contact-with the lower face of the die 66. At the same'tilne thespindlc 3(3is1noved downwardly and forces the disk through the opening in the .dieand forms the completed blank, as shown in Figs. 2- and? As soon ast-he punch 39 engages the 94. After the blank is formed, the upper gate mdves upwardly without the"spindle 36, which is returned by the action of the lever as, as above described, and while he.-

ing returned is rotated through the engagement of the gear 48 with the toothed portion 37, this action unscrewing the punch from the thread formed in the cap. While these arts are niovin' as 'ust described the lower gate, and with it the hunter, is I moved to its down posit-ion. After the punch has been withdrawn so that the lower '95 end thereof is above the top of the slide (35,

movement is imparted to said slide so as to bring the die 66 into register with the knockout pin 113, which then moves downwardly and knocks the finished cap out of the die into the discharge tube 118, from which it drops into a receptacle c0nv-en-' iently arranged to receive it. The slide'65 is now returned to the position wherein the die is in register with the spindle 36. The bore at the lower end of the die 66 is provided with grooves so as to produce a knurled periphery upon the finished cap and the lo'weredge of said die is coincident with the edge of said knurled portion, so

that there will be no marring of said knurled portion by reason of the failure of She banter to register exactly with the said In Fig. 2 I have shown one type of cap that may be constructed in my machine, and in Fig. 3 a modified form thereof with an inwardly projecting valve, but other forms may be produced equally as well by merely changing the form of the lower end of the punch and the upper end of the hunter.

There are minor changes and alterations that can be made within my invention, aside from those herein suggested, and 1f would therefore have it understood that ldo; not limit myself tothe exact construction herein shown and described, but claim all that:

falls fairlv within the spirit and'scbpe of Having described my invention, what I l merit and operation of the several parts being such that at the completion of the movement of said punch-- toward said hunter, a cup or similar-structure will have been formed within said die and in part surrounding said punch, with a portion thereof of larger diameter than the body thereof,

.said enlarged portion being at the end of said die opposite to the end through which the blank enters;

2. In a machine of the character described, the combination with a die, having anopening therethrough, enlarged at that end thereof opposite to the end through which the blank enters said opening; of a movable hunter, arranged so as to abut against the. face oi said die and close the said opening at its enlarged end; and a punch, threaded at its lower end, movable .in and out of said die and entering said opening at its smaller end.

. 3. The combination with a; two-part the, one of said parts having an opening-therethrough that is enlarged at that end thereof opposite to the end through which the blank enters said opening, and the other part of said die being movable toward and away from the first part and closing said enlarged open end; and a punch movable 1n and. out; of said opening through its smaller end and toward and away from the said second part of said two-part the, the ar- Jnagement and operation of the several 45 parts being such that atthe completion of the movement of said punch toward the second part ot said twopart-die, a cup or similar structure will have been' formed within said die and in part surrounding said punch, with a portion thereof of larger diameter than the body thereof, said enlarged portion being at the end of said die .opposite to the end through which the blank enters.

4.111 a machine of the character described, the combination with a die, having.

an opening therethrough, said openiiiig being enlarged at the bottom thereof; of ti hunter arranged so as to abut against the bottom face of said die and close the opening'therethrougxh; 'a punchmovahle in and out of said die toward and away from said hunter; means for moving said punch into said die without rotation; and means for moving said punch out of said die and im ing an openingtherethrough, said opening being enlarged at the bottom thereof; of'a bunter arranged so as to abut againr'st the bottom face of said die and close the opening thereth-roi'lghg a punch movable in'and out of said die toward and away from said bunter: means for moving said punch into said die without, rotation; and yielding means for moving punch out of die and imparting; a rotary movement thereto at one and the same time. 1

6. In a machine of the character dc scribed, he combination with a die, having an opening therethrough, said o iieningheenlarged at the bottom thereof; oi? a lmnter arranged so as to abut against the bottom face of said die and close the opening therethrough; a punch movable in and out of said die toward and away from said hunter: means "for moving; said punch into said die without rotation; a spring actuated lever, for withdrawing said punch from said die; and means for rotating said punch while being withdrawn.

7. In a machine of the character described, the combination with a die, having an opening therethrough, said opening being enlarged at the bottom thereof; of a hunter arranged so as to abut against the'hottom face of said die and close the opening there" die toward and away from said hunter; nean s for moving said punch into said die without rotation; a spring actuated lever, for withdrawiu said much from said die and a means for witlulrawing sa d punch from 195 scribed, the combination with a solid die,

having an opening therethrough enlarged at its lower end; of a hunter movable toward and away from said die, and when in. contact therewith, closing said,enlarged open end; a punch, that enters said die without 5 rotation and rotates while beingwithdrawn therefrom; and means for ejecting the tin: ished artielefrom said die.

9. In means for forming metal caps, or

c r o a l similar articles, having an enlargement ad 1 ncent'to the end thereof, and anintcrnally threaded shank, the combination with a solid die, having an opening therethrongh of substantially the same shape as a hection of saidarticle up to the end of said enlarge- 12s ment, said enlarged portion of said opening being at the lower end of said die; of a bi liter, having a depression; in the upper face thcrcnt' corresponding in hhape with the'end of said article; means for moving 13o through a punch movable in and out off said 103 said bunter toward and away "from said die; and a punch-having a threaded lower end, movable into said die without rotation, and withdrawn therefrom with a rotary movement.

10. in a machine of the character described, the coml'iiinition witha die; of a punch: means "for moving said punch into said die without rotationfand means for rotating said punch while the same is being withdrawn from the said die, said. means cinnprising a reciprocating rack and intermediate gears and. pinions between said rack and said punch.

11. In a machine of the character described, the combination with a slide; of means for imparting a reciprocat'ory movement thereto at predetermined periods a die fixed therein; a plate, having a reciprocatory movement parallel with said slide but independently thereof; a spindle mounted in a fixed part; a punch connected with said spindle; means for moving said spindle in one direction without rotation; means for rotating said spindle while being moved in the opposite direction; means, for deliver ing blanks to said slide; carrier lingers pivotally connected with said plate, having recesses near their outer free ends; means" tor separating said fingers to receive a blank from said blank delivering means; a hunter, with its axis substantially coincident with the aXis of sz-id punch; and means for moving the same toward and away from said die.

12. In a machine of the character described, the combination with a die; of a punch; means for moving said punch into said die without rotation; and means for rotating said punch while the same is being withdrawn from the said die.

13. In a machine of the character described, the combination with a die; of a punch; means for moving said punch into said die without rotation; and cam means for rotating said punch while the same is being withdrawn from the said die.

lak'lhe combination with a die, having. an opening tlu-rethrtmgh, enlarged at one end; of a hunter; a punch; means for moving said punch into and out of the opening in said die, and through the smaller end thereof; and means tor actuating said end; of a hunter; a punch; means for n1ov-',65

ing said punch into and out of the opening in said die, and through the smaller end thereof; means for actuating said bunter whereby it may be moved toward and away from said die and held against the face thereof and cover thesaid opening at its enlarged end while saidipunch is moving in said opening in one direction, whereby the metal as it is forced through said opening by said punch will be spread outwardly to fill the enlarged portion of said Openin after it contacts with said banter; il-IIC means for ejecting the finished articles from the die, at the end thereof opposite to the end from which the blank enters said die.

1b. 1' n a machine for forming, from a piece of llat metal, cups, or similar articles,

having a plurality of out-side diameters, the' larger or said diameters being adjacent to the end thereof opposite to the open end,

the combination with a die having an opening therethrough, enlarged at that end thereof opposite to the end through which the blank enters said opening; of a movable hunter arranged so as to abut against the face of said the and close the said opening at its enlarged end; and a punch movable in and out of said die and entering the said opening at its smaller end, so thatatthecompletion of its stroke toward said buntei, the said cup is completed, with that portion thereof having the enlarged diameter adjacent to the end of said punch and that portion thereof of smaller diameter surrounding said punch.

in testimony whereof I allix my signature in presence of two witnesses. Y

RICHARD LESTER \VHJCOX. Witnesses Gmrroiu) ln'rrra nAN,

Gno. F. BYAM,

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