US349225A - Safety-pin-heading machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

J. JENKINS.

SAFETY PIN HEADING MACHINE.

No. 349,225. v Patented Sept. 14, 1886.

flyz 7 72.

a V 23 g N. Firms. PhuiwLllhognpher, wnsmn wn. n. c.

(No Model.) 2 Sheets-Sheet' 2.

J. JENKINS.

SAFETY PIN HBADING MACHINE. No. 349,225. Patented Sept. 14, 1886 Q a. 2% M M! "k w/KM' M a mcx WW iffy.-

N. Pains Pmwumo m hw. Washingmn, D. c.

UNITED STATES PATENT OFFICE.

JOEL JENKINS, OF MONTCLAIR, NEW JERSEY.

SAFETY-PlN-HEADING MACHINE.

SPECIFICATION forming part of Letters Patent N0. 3%9225, dated September 14, 1886.

Application filed June 12, 1886.

T0 aZZ whom it may concern:

Beit known that I, J OEL JENKINS, of Montclair, in the county of Essex and State of New Jersey, have invented a new and useful Improvement in Machines for Heading Safety- Pins; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reterence marked thereon, making a part of this specification, in which Figure 1 is a front elevation of my improved satety-pin-heading machine; Fig. 2, a side elevation thereof; Fig. 3, a longitudinal section in line 1; o of Fig. 1; Fig. 4, a plan view 011 an enlarged scale of the bed of the machine; Fig. 5, a section in line x no of Fig. 4.; Fig. 6, ascetion in line y g of Fig. 4; Fig. 7, a detached view in perspective of the intermittently-rotating carrier in which the capping-plungers are made to reciprocate; Fig. 8, a detached sectional view in line 2 z of Fig. 4 of the pawl by which the carrier is actuated, and Fig. 9 a view in perspective of one of the cappingplungers detached.

Similar letters indicate like parts in all of the figures.

My invention relates to an improved ma chine for forming the heads or shields for safety-pins, and for automatically placing and fastening the head or shield upon the wire blank to constitute the pin.

The object of my invention is to produce a more compact and simple machine than those heretofore devised.

In the accompanying drawings, 10 10 represent the base and frame of my machine.

11 is the main driving-sh aft, and 12 the shaft actuating the punches. This shaft 12 is supported in the upper part of the frame 10, centrally over a fixed circular bed,A,and parallel with the main shaft 1], to which it is geared by a train of spunwheels, 13, let, and 15, as shown in Fig. 2.

16 16 are the rotating shafts formed with the customary spiral grooves m m,for conveying the wire pin-blanks 17 17 (see Fig. 3) from the bending-machine to the anvil18 of the headingmachinc. These shafts are mounted parallel with the main driving-shaft. Their upper surfaces are brought on a level with the Serial No. 205,006. (No model.)

top of the anvil 18, and at a point in front thereof their spiral conveyinggrooves are made to follow a direction at a right angle to the length of the shaft, in. order to arrest momentarily at the anvil the blanks carried theretov by said shafts. A si'ipporting-block, 19, is placed in front of the anvil,in which bearings are provided for the two shafts 16 16, and a plate or projection, 20, is fitted or formed at the outer edge of said supportingblock, against which the outer end of each wire blank finds support when a head or shield is being fitted thereon over the anvil. The circular bed A is formed with an annular recess in its upper side encircling a central stud or spindle, A, and the base of the stud A is encircled by a groove, a, cut in the bottom of the recess, as shown in Fig. 5.

Within the annular recess in the bed A is fitted a circular carrier, B, (see Fig. 7,) formed with a central opening, whereby itis adapted to fit upon and rotate about the stud A. This carrier is shouldered upon its upper rim, as shown at d, Fig. 7, and diametrie grooves 11 b b are cut on its under face. A plunger, 0, (see Figs. 9, 5, and 6,) is fitted in each radial groove 7), each plunger being so proportioned in length as to extend from the stud A,against which its inner end bears, nearly to the outer periphery of the carrier B. (See Figs. 5 and 6.) Alug, G, (see Fig. 9,) projects from the under side of each plunger 0 at its inner end to fit into the annular groove a in the bottom of 1 the annular recess in the bed A, as shown in Figs. 5 and 6.. The forward end of the plunger is made with a projection, r, on its upper edge and slopes back thence for a distance equal to the length of a finished pin head or shield. A diametrie groove, H, is cut on the under side of the bed A in line with the anvil l8 and at a right angle with the conveyingshafts 16 16. The bottom of this groove is in line with the bottom of the annular recess in the bed-plate. Within this groove or extended recess H a re ciprocating slide-bar, H, is fitted. The upper face of the bar near its front end is transversely grooved with a recess, a (see Fig. 6,) corresponding in its form and dimensions with the annular groove a in the bed A, so that it may register therewith and form, in connection vdth it, when the two are brought into regismovement ot' the bar in its reciprocation.

ter, a continuation thereof. At a distance from the groove a equal to the diameter of the central stud, A, a second recess, a, (see Fig. 6,) is cut in the upper face of the bar H of a length equal to the distance from the front end of one of the plungers 0 when brought opposite to the anvil 19 out to the anvil, and which corresponds to the stroke or extent of A lateral opening, L, is cut through the side of the bed A next to the anvil in line with the slide-bar H and on alevel with the top of the anvil 1S. and with the bottom of the recess bin the head, as shown in Fig. 6. This opening L is of suitable dimensions to permit the plnngers 0 when brought into registry there with to work out through it. The slide-bar H is actuated by means of an eccentriewheel, 21, on the main shalt 11, the bar being eonnectcd to a strap on the eccentric by in has of a link, 22, as shown in Fig. 8. \Vhen the rotating head or carrier Bis titted in place upon the axial stud A, its upper face is on a level with the upper face of the rim of the circular bed A. This rim is shouldered internally at 91, (see Figs. 5 and 6,) and upon the annular offset thus formed a curved iilling-plate, l, is titted ot' a length sullicient to extend about twothirds (more or less) of the circumference of the recess, and of a width which is so much wider than the offset as to overlap and cover the shoulder d, Fig. 7, ot' the rotating head 11%. The rim of the bed-plate A for the remaining third of the circumference is cut away to the level of the offset, and the space filled by a die-plate, E, (see Figs. 4 and 5,) adapted to fit therein, and which is made fast to the bed-plate by screws ii. (See Fig. 4.) A drawing-die, c, is formed in said plate E in position over the outer rim of carrier B, so that a head or shield drawn through the die will drop in the outer end of one of the recesses b in the carrier. An annular plate, F, of an external diameter corresponding with that of the curved plate I, but of an inner diameter so far greater as that when placed upon the plate I it will overlap the top of the carrier B, is fitted over the plates I and E, and is secured to the carrier to rotate with it over said plates by means of screws 8 s, as shown in Figs. '3, r, 5, and 6. Six openings, U U, are cut at diametrically-opposite points and at equal distances apart in this annular plate F, each in shape conforming to the form of sheetmetal blanks required to make a safety-pin head or shield. These openingsU Uare in position to pass centrally over the drawingdie e in the plate E, and are closed at the bottom by the plates I and E, so that they constitute recesses to receive and contain the blanks for the heads or shields. A die-plate, G, for cutting the blanks, is mounted to extend radially over the carrying-plate F, being supported at one end upon the top of the central stud, A, of the bed-plate, and at the other upon the rim of the bed-plate, and secured to each as shown in Figs 4 and 5. A cutting-die, 1?,is formed in said plate in position so that i t may register with the recesses U U in the blankcarrying plate 1 beneath it, whereby when the blank is cut in the die it will drop into one of said recesses. A strip of sheet metal, 23, (see dotted lines, Figs. 2 and 3,) is fed forward with an intermittent movement transversely over said die-opening l" in the plate I! by means of rollers in the customary manner, which need not herein be described. The cutting and drawing dies are so located with relercnee to the radial grooves b b of the rotating head B as that when one of said grooves is in front of the anvil 18, so that the plunger 0 in the groove is in. line to move out toward the anvil, the radial groove containing the plunger next preceding will be under the drawing-dio in position to receive the head or shield drawn and formed in said die from the blank, while the second radial groove next preceding it; will be under the cutting die P. The carrying plate 1: is also so fitted as that when at rest the recesses U U therci 11 shall each be over one ol'the pluugcrs C, so that when any one plunger is in line with the anvil one of the recesses will be over the drawing-dieand anot her under the cut ting-die, as illustrated in Fig. 4-. The upper i'aceot' the head Bis recessed at equal intervals with inclined notches R It it, the lower end of each termimtting in line with the center of the recesses U U in. the plate 1 these notches eonstituting a rateh to be, engaged by a beveled l'ace tooth or pawl, S, (shown in. detail in Fig. 8.) fitted in a lever, I), pivoted upon the stud A by means of an annular plate or collar, .l V. (see Figs. 5 and 6,) to which the lever is socured. This lever is made to oscillate upon the. stud A as its axis by means ol' :1 pitman, D coupled to the. outer end 01' the lever .l) by a universal joint, as shown in Figs. 3 and and which is connected to the strap 21 ol an eccentric-wheel, 2!"), upon the main shal't'll, as shown in Fig. 2. The pawl S is forced down upon the plate B, and therebymade to engage automatically the notches It It therein by means 01' a spring, T, on the. lever I). (See Fig. 4.)

The cutting, drawing, and clamping punches are all secured to a block, 26, mounted to slide vertically to and from the bed A and anvil 18 in suitable ways in the standards 27 27 of the frame 10 10 ot' the machine, as shown in Fig. 1. The reci )rocating movement of this block 26, by which the punches are operated simultaneously, is obtained by means of a crank, 28, on the upper shalt, 12, to which the block 26 is coupled by an adjustable pitman, 30. (See Fig. l.)

The cutting-punch 31 is made to descend vertically into the cutting-die .P in the plate (1, the drawing-punch 32 into the drawing-die e, and the (damping-punch 33 upon theanvil 18.

The movement of all parts 01 the machine, except the main shalt, are intermittent.

In the operation of the machine a strip of sheet metal is fed forward in the customary punch-block 26. As the punch-block rises, the

carrying-plate F is carried forward one point bythe action of the oscillating lever D and its pawl S upon the ratchet-notches B R in the top of the carrier B, to which the plate F is secured. At the second move the blank is carried over the drawing-die e, and as the punchbloek 26 descends the blank is forced through the die by the drawing-punch 32, and is formed into a pin head or shield and drops in a vertical position with its open end up, in front of the plunger 0, inthe one radial recess of the head B which is under the die. At the next move of the head B the plunger, with thehead in front of it, is brought into line with the bar H and anvil 18. So soon as the movement of the head is completed and the punch-block is rising, this reciprocating bar H moves forward toward the anvil and carries with it the plunger 0. The projection r on the plunger first striking the upper end of the head tips it forward, and the head is then pushed forward in ahorizontal position through the opening in the rim of the head B, out upon the anvil 18, and onto the bent end of the pin 17, which has been brought to the anvil, and is momentarily arrested thereon by means of the conveying shafts 16 16, as hereinbefore described. So soon as the head is upon the pinblank, the. plunger 0 is withdrawn by the return of the bar H, and in the meantime the clamping-punch 33,descending simultaneously with the cutting and drawing punches, closes the head upon the wire blank and secures it firmly thereon. Thus as the block 26 descends a blank is cut at one point, drawn into a head at a second point, and a head is closed upon a pin-blank on the anvil, and while the block ascends the headed blank is carried from the anvil, another brought to its place thereon, and the head B is rotated one notch, thereby changing the position of the several recesses in the carrying-plate F and carrying a finished head with the plunger 0 back of it from the drawing-die 6 forward into line with the bar H, whose independent longitudinally-reciprocating movement then follows, and is completed during the downward movement of the block just before the cutting, drawing, and clamping operations are simultaneously performed by the several punches.

It is evident that a horizontal carryingwheel or an endless chain or other known devices for the purpose of conveying the wire blanks 17 17 to and from the anvil 18 may be used as equivalents for the spirally-grooved conveying-shafts 16 16 also, that a solderingmaehine may be employed to solder the heads fitted upon the wire blanks, in which case the clamping-punch 33 may be dispensed with; and, furthermore, that the heading-machine may be combined with any suitable devices for bending and pointing the wire blanks before or after they are headed in manner as described.

I claim as my invention- 1. The combination, in a machine for heading pins, of a single vertically-reciprocating block,a cutting and a drawing punclnboth carried by said block, a centrally-pivoted earrier-head rotating intermittently beneath the block, an annular carrying-plate secured to the head to move under said punches, and which is provided with a series of recesses in its upper face, one of which is brought when the plate is at restunder each punch, a cutting-die interposed between the cutting-punch and the recessed plate, a drawing-die placed under said plate in register with the thawingpunch, and with one of the series of receptive recesses formed in the carrier-head and brought by its movement under the die, and a device, substantially as described, for transferring and fitting upon a pin-blank on the anvil the head delivered from the drawing-die, substantially in the manner and for the purpose herein set forth.

2. In a pin-heading-machine, the rotating carrier-head provided with diametrie slots on its under face, mechanism, substantially as described, for producing an intermittent movement of the head, a recessed bed-plate within which said head rotates, a plunger fitted in each radial slot to move longitudinally therein, a reciprocating bar moving in a diametric slot cut in the under side of the bed-plate to intersect the annular groove and to c01n1nunicate with the radial slots in the head when brought into register therewith,a lug upon each plunger fitting and moving as the head revolves in an annular groove in the bed-plate under the head and into a transverse groove 011 the upper face of the bar in register with said annular groove, and mechanism, substantially as described, for actuating said bar, all substantially in the manner and for the purpose herein set forth.

3. The combination, in a pin-heading ma chine, of an anvil, 1S, mechanism, substantally as described, for carrying a pin-blank, 17 over the anvil, a recessed bed-plate, A, mounted in front of said anvil, a carrier-head, B, r0tating intermittently in said bed-plate A upon a fixed stud, A, at a right angle with the anvil, phmgers O G, fitted to play longitudinally in radial recesses in said head B and through an opening in the rim of the bed-plate opposite the anvil on a level with the top thereof, a longitudinally-remprocating bar, H,playing diametrically in a recess in the bed-plate under the plungers O C and in line with the pivotal axis of the head B and the center of the anvil, a lug, g, projecting from each plunger to engage a transverse groove, a in the bar H when brought into register therewith, and In testimony whercofI have signed mynmno 10 mechanism, substantially as described, for doto this specification in the presence of two Suhlivering a pin head or shield in front; of each scribing witnesses.

plunger G bet'ore it" nttnins itsposition in front 5 of the anvil 1S and ovvr the bar 11, and for JOEL JEYKINS.

producing an intermittent rotation of the head 13 and an iut'orlnittonti rovipromting inovolnt-nt \Vit nossvs: ot' the bar H, all substantially in tho lllflllllll' h. A. SIAIINS,

and for tho pin-pose llOl'Oll] Stl' t'orth. A. N. JI-ISUE'HA.

Images