US353190A

US353190A - Machine for drawing cartridge-shells

Info

Publication number: US353190A
Authority: US
Publication date: 1886-11-23
Anticipated expiration: 1903-11-23

Description

(No Model.) 2 Sheets-Sheet 1.

E. WHITE.

MACHINE POR DRAWING CARTRIDGE SHELLS.

Patented Nov. 23, 1886'` N. PtTERs, Phnm-Lnhegnpdwf. washington, t'. c

(No Model.) v 2 sheetsneet 2.

R. WHITE. MACHINE POR DRAWING CARTRIDGE SHELLS. N0. 353,190. Patented NO VQZS, 1886.

if ,up f7 l ,W71 W' ff] ff 5 Mx @i f w35/ :i @-L H @y 1| :i (fg/5F26 W UNITED STATES PATENT OFFICE.

ROLLIN VHITE, OF LOWELL, MASSACHUSETTS.

iViACHlNE FORDRAWING CAR'lRlDGE--SHELLS-` SPECIFICATION forming part of Letters Patent No. 353490, dated November 23, 1886.

Application filed May 17, 1885. Serial No. 202,469. (No model.)

To @ZZ whom it may concern.-

Be it known that I, RoLLr-N YVETTE, a citizen of the United States, residing at Lowell, in the county of Middlesex and Commonwealth of Massachusetts, have invented a new and useful Improvement in Machines for Drawing Cartridge-,Shells and Similar Articles Drawn from Metal, of which the following is a specication.

My invention relates to an improved construction and arrangement of the drawing-dies and their correspondingpunches, whereby they can be more easily adjusted.

In `machines for drawing cartridge-blanks and similar articles drawn from metal, where the partiallydrawn blanks are conveyed from die to die by automatically-moving carriers, much difficulty is experienced in bringing the line of the axes of the contiguous dies in either a stationary die or in another carrier in exactly the required line one with the other, and if any changeis necessary in any two dies all the other dies or carriers on one or both sides of the one first altered must be changed. I obviate this defect by arranging the dies and their corresponding punches in a zigzag line, whereby any carrier, with its dies, can be brought into the required line with the next die without changing the position of more than two carriers, and frequently requiring the change of but one.

In the accompanying drawings, Figure l is a side elevation of my improved machine; Fig. 2, a top view of head, the stationary dieplates, and side pieces or nprights on the line .e in Fig. 1,'the uprights being in cross-section; Fig.'3, a top view on the liney g/in Fig. l, showing the carriers and stationary dieplates, the uprights onlybeing in cross-section Fig. 4, a top view on theline z z in Fig. l, showing the manner of operating the shafts;

Fig. 5, a section elevation on the line u u in Fig. 4; Fig. 6, a view on the line coin Fig. 3,

Y showing the upper end of the carrier-spindle,

the upper j ournal-box', carrier, stationary dieplate, and the die-rail, the die being in crosssection; Fig. 7, a top view on the line w w in Fig. G.

In the accompanying drawings, the letter A refers to thev frame of a machine, which consists of two uprights connected at the top by a cross-girt and at the bottoni by the base.

Themain shaft A is provided with suitable bearings in the frame, and is rotated by the driving-pulley A. The required number of punchcsP P P2 l?3 PL Pare secured in the head, which slides in vertical ways a a a c, secured to the inner side of the uprights by screws a a a a a. A reciprocating motion is given to the head B by means of the ecccntrics c c, secured to the main shaft A through the eccentric-straps c c', eccentric-rods c2 c3, and the wrist-pins b b.

In operating the machine the first operation is to feed,either byhand or by any wellknown feeding device, cupped disks ot'1netaloicups7 between the first punch, Rand the die D. The descent of the head B, carrying with it the punches, causes the first punch,P,to force the disk down through the die D and into the carrier K. The die D has a downwardlyslightly decreasing taper, so that as the disk is forced downward it is reduced in diameter and elongated.

The carrier K is mounted on avertical shaft, S', and after the punch I is withdrawn by the upward motion of the head the carrier is caused to make about half a revolution by" means of the movement of the rack H, which takes into a gear or mutilated gear, G', secured" to the shaft S. (See Figs. 4 and 5.)

The rack H is adj ustably secured to the bar H by vertical screws h, which pass through longitudinal slots hand into screw-threaded holes in the bar H', so that when the screws are turned down their heads will bear upon the upper surface of said rack and hold it in place on the bar. Then the holdingscrews are loosened the rack may-be adjusted longitudinally by means of the longitudinal screws I I, which turn in screwthreaded holes in the ears i t' at the ends of the bar H and thrust against the ends of the rack. The bar H', having the rack H secured thereto, as described, has a reciprocating longitudinal motion imparted to it by the cam J, which is secured to the camshaft J. The cam-shaft Jis provided with a gear, J2, which engages with a pinion, A3, on the main shaft A. The arrangement of the gears Ji and the pinion A3 is such that two revolutions of the main shaft are required to make one full revolution of the cam, and the IOO form of the groove of the cam is such that the bar H' moves forward as the head B descends, remaining at rest while the punches are in the dies and returning as the head again descends.

The carrier may be of any preferred form and contain any number of dies. In the drawings they are represented as of an oblon g form, and containing two dies.

By the movementof the rack H the carrier K', containing in one of its dies the cupped disk, as before described, is brought over the die-opening in the stationary die D', and the descent of the head B causes the punch P' to drive the cupped disk out of the carrier K into and through the stationary die in the dieholder Dand into the carrier K". At the same time another disk is cut by the punch P and forced into the other die of the carrier K.

rIhe die-carrier K is supported on a shaft provided with a gear, G2, which engages withy the rack H, and is operated in the same manner as the carrier K', already described, the only difference in the two carriers being that the dies in the carrier K2 are somewhat smaller than the dies in the carrier K', so that the cupped disk is reduced in its diameter and elongated..

The cupped disk, which after passing the stationary die-plate D' becomes a blank, is driven in the manner above described through the stationary dies and carriers,being reduced in diameter and elongated as it passes through each die until it has been reduced Ato the required size, and is discharged from the last carrier or stationary die into any convenient receptacle.

By referring to Figs. l and 2 it will be seen that the stationary dies and the carriers are arranged in steps, one below the other, there being only about the thickness of the carrier between two stationary dies,and that the carriers are constructed with a die in each end,

`so that at every descent of the head B a new disk is forced into the die D, and at each descent, after all the carriers are full of blanks, a blank is driven out of one end of a carrier and another blank received in the other end and a blank discharged.

The lower ends of the shafts S' S2 S3 S* S5 lit into boxes in the cross-piece A5, the bottoms of these boxes being preferably fitted with a strip of Babbitt metal, against which thrusts vertical screws N'N N3 N4 N5,turn1ng in screw-threaded holes in the cross-piece,and provided with check-nuts a. By means of these screws the vertical position of the carriers may be easily adj usted. Theupper parts of the carrier-shafts are provided with boxes M. These boxes M areinserted in holes in the cross-girts M', between the die-rails, the holes being somewhat larger than the body of the box, the box being prevented from dropping through by the enlarged collar m. Three or p more screws, m', (four being shown in the drawings) turning in screw-threaded holes in the dierail,thrust against the boxes M,ior the purpose of adjusting them in a horizontal direction. The dies in the stationary die-plates are all adj ustably secured therein, the adj ustment being accomplished by means of three or more screws, d d d, turning radially to the axes of the dies in screw-threaded holes inthe die-plates, and thrusting against the die.

Iprefer to secure the dies in the die-plates by counterboring about the opening in the plate which receives the die, and letting in a plate, d', which may be secured therein by screws d" d" d". the die-carriers in the same manner, or they may be in one piece therewith, as shown in the drawings.

f The punches l? P P2 P3 P* P5 are secured in externally screw-threaded sockets p, said sockets being provided with nuts p' p and checknuts p"p" above and below the socket-rail B on the head B. The holes in the socket-rail The dies may be secured in` which receive the sockets are made somewhat larger than the sockets, so that the sockets may be moved about to allow the punch contained therein to be adj usted to its corresponding die. Vhen the punch is properly adjusted, or to aid in its adjustment, three or more screws, b' b b', turning radially to the sockets in screw-threaded holes in the socket-rail and thrusting against the socket, may be used.

Should the dies in any of the carriers not come in the required line with the die in a stationary die-plate, the position of the stationary die may be somewhat altered by means of the three adj usting-screws d d d, and the position of the dies in the carrier may be made to conform to the die in the stationary plate by adj usting the position of the box M ,in which the upper end of the carrier-shaft turns. Thus the axes of the contiguous dies may be made to conform one to the other. If, for example,

the dies of the carrier K3 should not exactly` line with the die in the stationary die-plate D3, a rod fitting the dieopenings could be thrust through the carrier K', through the stationary die D', and into one of the dies of the carrier K3, thus keeping the axes of these three dies in line. The free end of the carrier K3 may now be moved through a segment of a circle by moving the box M, in which the upper part of the carrier-shaft S3 turns. If this motion should not be sufficient to bring the dies contained therein into the required line, one end of the car-rier KA1 may be secured, as the carrier K3 was secured, by thrusting a rod through the die contained therein, through the die in the stationary die-plate D", and into the diein the carrier K5. K3 and K'L may now be moved through segments of circles, having the confined ends as centers, by changing the position of their respective boxes until the axes of their dies come in the required line one with the other. The

position of the die in the stationary die-plate kmay now be changed, by means of the adj ustingscrews d d d, to conform to the dies in the IOO IIO

The free ends of the carriers carriers. When all the dies are properly adjusted, their corresponding punches may be brought into line therewith by means of the screws b b b.

It will be evident that were the stationary dies dispensed with and only movable dieplates or carriers used the manner of adjust-v ing would be substantially the same.

In this construction the stationary die-plates D, D', D, D, and D4 would be dispensed with and the thickness of the carriers preferablyincreased, so that there would be little or no space between the lower side of ione and the upper side of the one below it.

I claim as my invention- 1. The combination and arrangementof a series of dies and a series of punches in zigzag lines, whereby any die with its corresponding punch may be adjusted independently ofthe other dies and punches of the series, and oneor more carriers for conveying the partiallydrawn blanks from die to die, substantially as shown and described.

2. The combination and arrangement of a series of dies and a series of punches in zigzag lines, whereby any die and its corresponding punch may be adjusted independently of the other dies and punches of the series, and carl riers adapted to convey blanks from die to die of such series, substantially as herein shown and described.

3. The combination of a series of stationary dievplates containing dies, said dies being arranged inzigzaglines, and carriers having one or more perforations for the purpose of con-' veying the partially-drawn blanks from one stationary die to another, as and for the purpose specified.

4. The combination of the intermittentlymoving carrier, its shaft, and the journal-box adj ustablelaterally,substantiallyas shown and described.

y 5. In an automatic machine for drawing blanks, two or more carriers providedwith shafts, said shafts turning in boxes having a lateral adjustment, in combination with a series of dies and a series of punches arranged in zi gzaglines, as and for the purpose specied. l

6. The combination of a series of punches and a series of dies, one or more carriers supported on shafts provided with gears, a rack engaging with said gears secured to a bar having a reciprocating motion, and said bar, said rack being so secured to said bar that it may be moved to adjust it to the required motion of the carriers7 substantially as described.

7. Th'e combination of a series of punches and a series of dies, the carriers supported on carrier-shafts, said shafts provided with gears, and a rack adapted to engage with said gears and having an intermittent vibratory motion imparted to it, whereby the carriers are oscillated to and fro, substantially as shown and described.

8. The combination of a series of punches and a series of dies arranged in zigzag lines, carriers adapted to convey the partially-drawn blanks from die to die, said carriers being supported on carrier-shafts having an intermittent oscillating motion communicated to them through an intermittently-moving rack which engages with gears secured to said shafts, the rack, the carriershafts and their gears, and a cam adapted to move said rack only when the punches are raised out of the dies, substan tially as shown and described.

ROLLIN WHITE.

Witnesses:

ALBERT M. MOORE, HERBERT It. WHITE.