US1143434A - Punching and shearing machine. - Google Patents

Description

1. P. REARDON.

PUNCHING AND SHEARING MACHINE. AP1j11cAT1oN 111511 nic. 23. 1911.

1 ,143,434. Patented June 15, 1915.

2 SHEETS-SHEET l.

77251165565- 44` Jermfzfw@ THE MORRIS PETERS Ca, FHom-LITHD.. WASHINGTON, D4 C.

I. P. REARDON.

PUNCHING AND SHE/RING MACHINE. APPLICATION FILED DEC. 23. 191|.

2 sHEETs'-sHEr 2.

Patented June 15, 1915.

VJ'IERElVlIIAH P. REARDON, COATESVILLE, PENNSYLVANIA.

PUNGHING AND SHEARING MACHINE.

To' all 'whom t may concern c Be it known that I, JEREMIAH P. REARDON, a citizen ofthe United States, and a resident of Coatesville, Chester county, Pennsylvania, have invented certain Improvements in Punching and Shearing Machines, of which the following is a specification.

My invention relates to machines for punching and shearing metal;l and the object of my invention is to provide a machine of this character for operation on metal stock for the production of corset steel or busks employed at the front of corsets; such steels or buslzs having or carrying the fastening devices for securing the corset to the body of the wearer.

The structure forming the subject of my invention is inthe form of a rotary shear with punch and die elements placed at intervals within the rotary knives and operating radially therein to properly aperture the sections of metal forming the busks or steels, with strippers disposed within the dies and acting radially to expel waste pieces formed in the punching operation.

These and other features of myl invention are more fully'described hereinafter, reference being had to the accompanying drawings, in which:

Figure 1,'is a side elevation of a punching and shearing machine embodying my invention; Fig. 2, is a plan view of the same; Fig. 3, is a sectional elevation on the line a-a, Fig. 1, and Fig. 4, is a cross sectional view on the line b-b, Fig. 3.

The present machine is designed to be fed automatically, and the rotating punching and shearing members may carry three sets of punching and shearing elements so that three steels or busks will be produced for every rotation of the same. The punches and shearing elements in themselves present no particular featureof novelty beyond their assembly in the relationship shown, so that the metal fed will be simultaneously cut the proper width and punched as it is fed forward.

Automatic feedingmeans are provided, which may be carried at the front of the machine, and it will be understood that the metal operated upon may be fed from a roll, or may be in the form of strips sufficiently long to produce three finished steels.

The punches are carried by thel upper rotatable element in fixed relation with respect thereto, and comprise radially disposed Specification of Letters Patent.

Patented June 15, 1915.

Application led December 23, 1911. Serial No. 667,474.

pieces of metal of proper character suitably backed, so that proper `pressure can be applied axially to the operating point. The lower structure, carrying the dies against which the punches act, is provided with ejector plungers in said dies; such members being disposed radially in the rotatable element and controlled by a cam which causes the plungers to protrude when they are in their lowered position in order to eject punched material from the dies.

My improved machine comprises suitable frames or housings 1, having suitable journal bearings 2 and 3, for the reception of shafts 4 and 5, carrying the upper and lower cutting elements 6 and 7, respectively. Power from a suitable source, (not shown) maybe applied to the shaft 4 by means of a pinion 8 carried by a shaft 9, which pinion meshes with a gear wheel 10 carried by said shaft 4; the shafts 4 and 5 being geared together by suitable gear wheels 12 and 13 having the same pitch diameter and number of teeth, in order that the movements of said cutting elements will be uniform.

Each of the cutting elements comprises a series of members; being preferably made in separate sections to facilitate assembly and ease of repair, and the several parts being secured together rigidly by bolts so as to be substantially of solid form. v

The outer part of the lower or die element 6, indicated at 15, is slotted at 16 to receive dies 17, each having lips 18 for engagement with an annular recess 19 formed in the surface of the 'inner part 20 of the die element, over which fits the ring 15 with the inserted dies. Each of said dies carries a plunger 21 which is readily movable in and out of the same for the purpose of expelling the material punched from the metal strips. This movement of the plunger is accomplished by means of a cam or eccentric 22 journaled on one of the bearings and arranged to engage said plungers. This eccentric or cam is provided with a series of projections or studs. 23 extending radially therefrom and disposed in engagement with the die carrier 6 so as to be driven thereby.

The upper or punch element 7 is constructed in a manner substantially similar to the die element; there being two rings or lplate members 25 and 26 arranged to embrace the punches 27, which are disposed annular recess 28, and the punches have lips 29 which hook into this i'ecess. The hub of the upper gear wheel serves as an abutment or backing support Afor these punches to take the thrust during the punching operation.

The structure l have shown, provided with punches and dies to complete three steels for every revolution, is also provided with suitable cutting-off elements, comprising blades 30 carried bythe lower element 6, and anvils 31, carried by the upper element 7. Y

During passage through thefmachine, the strips of'metal are shaped and punched and cut Vinto lengths which emerge from between the cutting elements as a finished product. To economize material, it is desirable to time the strips as they approach thev rotating cutting elements so that an end of each long strip will meet a pair of theA cutting-off elements 30 and 31, and this result isaccomplished automatically by the device shown-to the right ofthe punching elements in Figs. 1 and 2.

lThe `feed mechanism is driven bya pinion 35 in mesh with the gear wheel Vl0, and is carried by 'a shaft 3.6 which carries other pinions 37v and 38, which in turn transmit movement to pinions39 and 40 driving feed rolls 41 and 42. Tliese gears, and their relation to the feed rolls 41V and 42, are clearly indicated in Fig. 2. The shaft 36 carries pinions 35, 37 and 38; the pinions 37 and 38 driving the lower roll 41 through pinions 39 on a shaft 43 carrying said roll, and said pinions' and 38 drivingthe upper roll 42 through the medium of intermediate pinions 44 meshing with the pinions 40; the latter being mounted on a shaft 4 5 carrying said upper roll. The shaft 43 carrying the feed Yroll 41 andthe pinions 39 is journaled in a lever 48, pivoted at 49 to the frame and having its opposite end forked at 50 to receive a small roller 51, shown in Fig. 2. The shaft 36 carries a cam 52 directly. under said lever 48, whose purpose is to lift that end of the lever and raise the roller 5l. As

this cam rotates, it strikes thelever yonce every revolution, causing said rollerto rise through the plate-andjallowing, a strip of metalto passundei' the same and over a bridging member 55. delivering said strip intoengagementy with the rotating die ele'- ments.

When a strip has Ypassed from under the roller 51, the latter -drops .to the position shown by dotted lines, blocking the progress Yof the next strip until a pair of cuttingfofl" elements 30 and 31 are ready for it just beyond thebridging member thusavoid-V ing a waste piece .which would otherwise occur. When the roller 51 is raised, the lower feed roll 41 is also raised, holdingthe strip against the upper feed roll 42 and propelling it forward, but. when the roller frame l by bolts '61, as indicated. The Y housings l are also connected together by suitable bolts 62, and the cap member of the upper bearing is clampedto the lower bearing by bolts 64.-, insuring rigid C011: struction.

The several parts forming the punch and die elements are confinedtogether bybolts and 7l respectively and directly secured to the gears `12 and 13.

l claim:

1. In apunching and cutting, machine, the combination o f a pair of rotating elements, means for driving' the saine in unison, fixed radially disposed punches carried by oneof said eleinents,.iiired radially disposed dies carried by the other element, the latterhav` ing an annular recess, coacting stripping members ,movably mounted within said dies,V mounted,

an annular member eccentrically within the recess of. said rotating member and adapted to move said stripping members through the diesduriiig'movement of said rotatingelemeiits, and. means for driving said annular 'member on its eccentric airis with one of said rotating,A elements.

. 2. In a punching vand cutting machine, the combination` of a; rotating lmemberhaving teeth-and a hub, a'nannularly groovedplate adapted to said hub, a punch .plate radially grooved also adapted. of punches adapted to ,the registering grooves ofl therespective plates and havinglips in ioo to said hub, a series engagement Withtlie vannular'groove of the firstnamed plate, said punches having their inactive ends in engagement withthe hub whereby the latter'formsfa backing or anviltotake the thrust of thepunches, means for locliingsaid plates `to said rotating member, a second rotating member.. mounted below. the first, fixedladially disposed dies carried by said member, coacting stripping members slid'ably mounted withinV said dies, an eccen-y tric'allymounted rotating meinberfor mov'- ing said strippingmeinbers through thedies during movement of said rotating elements, A

mi mais for. driving sa@ mating e1@- meiits and the eccentrioally mounted member simultaneouslytherewith.v

3. In a. punching and cuttingmachine, the combination of a. feeding device. comprising a table, a plurality vof feedrolls, meansV for driving said feed' rolls,

for mQV-ng Sd'SUPpQiT te raisesa'id rollY at intervals.. Y. .Ina punching Mld.- Cllttllg machine, the

a positioningroll,V a Plvoted Suppert for thasame, and'means.

combination of a feeding device comprising a table, a plurality of feed rolls, shafts upon which said feed rolls are mounted, means for driving said shafts, a positioning roll, a pivoted support for the same, and a cam carried by one of said roll shafts and turning therewith for moving said support to raise said roll at intervals.

5. In a punching and cutting machine, the combination of a feeding device comprising a table, a plurality of feed rolls mounted above and below the plane of said table, means for driving said feed rolls, shafts upon which said rolls are mounted, a positioning roll, and a pivoted support for the latter having its roll carrying end verticallyT movable with respect to thejvork, said pivoted support being operated from one of the feed rolls.

6. n a punching and cutting machine, the combination of a pair of rotating elements, means for driving the same in unison, fixed radial punches carried by one of said elements and disposed in sets, the punches of each set bearing a definite relation to each other, fixed radial dies carried by the other element and disposed for proper coaction with said dies, registering cutting means carried by said rotating elements and disposed between the sets of punches and dies, coacting stripping members movably mounted within said dies, and means for moving said stripping members through the dies vduring movement of said rotating elements.

7. In a punching and cutting machine, the combination of a feeding device comprising a table, a plurality of feed rolls, shafts upon which said feed rolls are mounted, means for driving said shafts, a positioning roll, a pivoted support for the same, and a cam for moving said support to raise said roll at intervals.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

J. P. REARDON.

Witnesses:

MURRAY C. BOYER, Jos. H. KLEIN.

Copies of this patent may be obtained for ve cents each, by addressing' the Commissioner of Patents,

Washington, D. C.

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