US832593A - Press for punching, shearing, stamping, and other purposes. - Google Patents

Description

No. 832,593. PATENTBD 0011-9, '1906.

J. OLIPFBL.

PRESS FOR PUNOHING, SHEARING, STAMPING, AND OTHER PURPOSES. APPLIGATION rum we. a, 190m 3 SHEETS-SHEET 1.

m: NORRIS PETERS co, WASNINGYON, n. c

No. 832,593. PATENTED OCT. 9,1906.

J. GLIPFBL.

PRESS PoE PUNGHING, SHEARINGSSTAMPING, AND OTHER PURPOSES.

I APPLICATION FILED AUG. 8, 1906.

3 SHEETS-SEEET 2.

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No. 832,593. PATENTED OCT. 9, 1906.

J. CLIPPEL. PRESS FOR. PUNGHING, SHEARING, STAMPING, AND OTHER PURPOSES.

APPLICATION FILED AUG. 8, 1905.

a 3 SHEETSSHEET 3.

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v 1 UNITED STATES PATENT ornron.

JULES CLIPFEL, OF

PRESS FOR PUNGHING; SHEARING;

Specification of Letters Patent.

Patented Oct. 9,1906.

Application filed August 8, 1905. Serial ITo. 273,284.

To all whom it may concern:

Be it known that LJULEs CLIPFEL, a citizen of the Republic of France, residing at Rue Charles Fourier, Besancon, Doubs, France, have invented new and useful Improvements in Presses for Punching, Shearing, Stamping, and other Purposes, of which the following is a specification.

In presses for punching, shearing, stamping, and other purposes now in common use it is necessary that the tool, which must accomplish its work in a single stroke, should be subjected to a considerable effort. The machine-tools of this class are somewhat cumbersome, and, moreover, they necessitate the use of powerful motors.

The improved press which forms the subject of the present invention is considerably less cumbersome, and the power of the motor necessary to accomplish the work is reduced.

To this end in a press constructed according to this invention the work of the tool is effected in stages. In place of accomplishing itswork in a single stroke the tool accomplishes it in a series of consecutive reduced strokes, demanding, consequently, lesser efforts. This result is obtained, on the one hand, by the aid of an extensible tool-c arri er, and, on the other hand, by means of improved driving mechanism, which transforms the continuous circular movement of a'shaft into an oscillating movement of abeam having different phases of speed, a slow-working stroke, and a rapid-return stroke of the tool.

A practical form of execution of the invention is represented in detail in the accompanying illustrative drawin s, in which Figure 1 is an elevation of the whole press. Fig. 2 is a sectional elevation thereof corresponding to the line A A of Fig. 1. Fig. 3 is a sectional plan, and Fig. 4 is a partial section corresponding to the line B B of Fig. 1.

Mounted between two checks at the upper part of the machine-frame 7 is a shaft 1, upon which are keyed toothed wheels 9 and 11, that gear, respectively, into wheels 12 and 10, carried by the shafts 2 and 3. The shaft 2 is furnished with a pulley 13, adapted to be driven by the motor. The frame 7 also carries three shafts f, 4, and 50 and afixed axle 47.

The gear-wheel 10 is provided withacrankpin 14, to which is pivoted one end of a connecting-rod 15, whose other end is jointed to the sleeve 5 of an operating-lever 8. To the sleeve 5 is fixed a spring 6, that bears upona I handle 18, carried bya catch 16 17 ,which op.- eratesaratchet 19, cast inone with a toothed wheel 20, that is keyed upon a shaft 50, carrying a crank (1 adapted to be operated by hand, Fig. 3. .by a rod 21 to a rod- 22, that is provided with a short axle or pin 24, on which is pivoted an arm 23. A spring 25, fixed upon an abutment 26 at the extremity of the rod 22, tends constantly to thrust the arm abutment. The arm 23 is formed with a shoulder 27, adapted to be en aged by the finger 28 ofan engagement or c utch fork 29. A beam 30, oscillating about the shaft 4, is provided at one end with and at its other opposite end it is subjected to the action of a spring-buffer I), mounted on the frame. The sector 31 gears with a pinion 32, that is integral with a I toothed wheel 0,

Wheel 0 gears into the wheel 20.

Projecting from thebeam is a stop (1, which is located in the path of tappets'34 and 35, carried by a vertical rod 33, that is guided 1n a two tappets 34 and 35 there is free to turn upon the rod 33 a sleeve 36, provided with a' tappet g and an operating-handle h, that has fixed upon it a spring 37, which engages in The rod 33 is jointed at its upper end to one. of the arms of a knee or bell-crank lever 38, Fig. 4, keyed upon an axle 39, carried by the frame. This axle is also provided with two crank-arms 40 and 41, Fig. 1. arm 41 is connected by a stud'ito a connecting-rod 42, which operates the tail ofa stopratchet 43, while the crank-arm 40 actuates a piece 44. A slide 45 isconnected 'to the frame 7 is a movableframe comprising two plates 51 and g, which can turn about ,the standard or axle p. The two plates '51 andlq can be rendered independent the one of the other or be secured so as The sleeve 5 is also connected 6o 23 against the a toothed sector 31, 7o

keyed upon the shaft f. This bracket e on the frame 7. Between the *one of the notches made in the tappet 34,

The cranklever 38, the long arm of which is jointed to a 5 there can turn'a gear? Upon a standard or axle p on the' main 1 05 'to' move togetherby I 1 c the manipulation of a bolt or catch 52. They can also e tied to the main frame '7 by the manipulation of a second bolt or catch 53, Fig. 1.

The upper part 51 of the movable frame may carry different tools, such as shears, punches, stamps, or any other apparatus adapted to be actuated by pressure. The lower part 9 of the movable frame carries the corresponding counterparts of such tools. In thecase of the shearing-tool for cutting channel-irons the upper tool-carrier 54 comprises a hollow cylinder in which there is a sort of piston 55. 'The cylinder 54 carries also one or more blocks 56. A bolt 57 permits of coupling at pleasure the hollow cylinder andits piston. A small crank 58, with pinion 59, servesto bring back the tool carrier or cylinder to its initial position when the bolt 57 has disconnected it from its piston. For this purpose the cylinder 54 isprovided with a toothed groove 1", forming a rack. At its lower I art the hollow cylinder is provided with the lade-carrying jaws 60. The lower or counter part of this shear comprises a sort of table 61, upon which may be fixed the blades 62. At the ends of this table are slides 63, that guide the vertical movable blade-carrying shoes 64 65, wedges 66 keeping the shoes 64 65 the desired distance apart.

For the connection between the beam 30 and the tools the beam is provided with a piece 8, forming a jointed connecting-rod, at the lower part of which is attached a piston with claws 69, enabling it to embrace the uniform heads of the various tool-carriers. This piston is guided by a piece 70, fixed to the main frame.

To facilitate the rotation of the frames 51 and g, they rest at their lower part upon antifrictionballs 67, that are adjustable by screw-wedges 68.

To work the machine by hand, care must be taken to first disconnect the connectingrod from the sleeve 5. By then lowering the manipulating-lever 8 in the direction of the arrow, Fig. 1, the beam is oscillated, through the ratchet wheel-gear and the double gear, in .the same direction as the lever 8, and consequently a vertical pressure from above downward is transmitted to the piece 8 and to the particular tool-carriers, which are brought beneath the clawed piston by previously turning the frames 51 and After several successive oscillations of the hand-lever 8 the beam 30 arrives at the end of its stroke. It is then brought back again to its initial position by actuation of the crank a. The element 54 of the tool-carrier has, however, remained in place, Fig. 2, en-.

gaged in the pieces to be fashioned, the piston 55 alone being raised with its clawed piston 69. It is then that a block 56 is pushed beneath the piston 55, as shown in Fig. 2. The length of the tool-carrier is thus augmented by the thickness of the block or blocks. Another series of oscillations of the hand-lever 8 can then be commenced.

By the operation of the crank 58 the toolcarrier may be brought back again to its initial position after having first disconnected the block 56 by bringing it to its primitive position. (Indicated in dotted lines in Fig. 2.)

For mechanical working the connecting rod 15 plays the part of the hand-lever 8. When the beam 30 oscillates, the stop 01 thereon strikes the fixed tappets 34 35 of the rod 33, or even the movable tappets with which the pin 36 is provided, according to the amplitude which it is desired to give the beam 30. The rod 33 is thereby caused to alternately move from below upward and from above downward and convey corresponding oscillating movements to the levers andcranks 38 40 41, the object of which is to put into engagement the catches 16 and 43 with their ratchet-wheel 19 or to cause them to be placed out of engagement. The rod 71', which is actuated by the longer arm of the lever 38, has for object to operate at the proper time the throwing out of gear the clutch-sleeves n and 0 of the gear- wheels 46 and 48 by its stop-tappet m striking the clutch-lever 29. It will be seen that when the rod 42 executes the movement from above downward, the sleeve of the lever 8 moving in the direction of the arrow, the crank 40 pushes the piece 44 beneath the rear shoulder 17 of the catch 16 the crank 41 lifts the stop-catch 43, and the lever 38 releases the clutch-lever 29 by its catch-rod 76 m. The catch 16 is lifted on the return of the sleeve 5, and in this return movement the stop 27 strikes the shoulder 28 of the clutch-fork and causes the engagement of the gears 20, 46, and 48, which brings back again the beam 30 and its stop (2 upwardly-that is to say, to its initial position. The reverse or upward movement. of the rod 33 is then produced by the pin d and tappet 35, and the return to their normal positions of all the unlatching and disengaging pieces is thereupon effected. The slide 45 in its upward movement disengages the arm 23, and the shoulder 27, with which this arm is provided, is thereupon moved away from the stop 28 of the clutchfork by the thrust of the spring 25.

What I claim is- 1 In a press for punching, shearing, stamping and other purposes, an extensible toolcarrier, a beam adapted tov operate such carrier, driving-gear adapted to move such beam slowly in an operative direction, other gear adapted to move the beam quickly inthe reverse direction, and mechanism operated by movement of the beam'whereby either such driving-gear is put into and out of operation at the desired times, substantially as set forth.

2. In a press for punching, shearing, stamp ing and other purposes, a toolcarrier comprising two parts adapted to slide relatively to each other, packing-pieces adapted to' be inserted between such parts so as to lengthen the carrier, a beam adapted to operate said carrier and with which one. of said carrier parts is in engagement, driving-gear adapted to move such beam slowly'in an operative direction, other gear adapted to move the beam quickly in the reverse direction, and mechanism operated by movement of the beam whereby either such driving-gear is put into and'out of operation at the desired times, substantially as set forth.

3. In a press for punching, shearing, stampingand other purposes,.a movable frame, a I

series of extensible tool-carriers on sai frame, a tool-operatingdevice, means for securing said frame with any one of said toolcarriers in position to be actuated by said operating device, means for moving said op erating device slowly in an operative direction, means for moving said device quickly in a reverse direction and mechanism whereby said means are placed in operation at the desired times, substantially as set forth.

4. In a press for punching, shearing, stamping and other purposes, an extensible toolcarrier, a pivoted beam adapted to operate such carrier, a toothed segment fixed to said beam, an oscillating bar, a ratchet-pawl pivoted to said bar, a ratchet-wheel into which said pawl engages, a toothed wheel gearing into said beam-segment, toothed gear connecting said toothed wheel to said ratchetwheel, means operated by the movement of said beam that lift said pawl out of engagement, and hand-gear for then rapidly rotating said ratchet-wheel in the reverse direction, substantially as set forth.

5. In a press for punching, shearing, stamping and other purposes, an extensible I tool-carrier, a pivoted beam adapted to operate such carrier, a toothed segment fixed to such beam, an oscillating bar, a motor-driven wheel, a crank-pin on said wheel, a rod connecting said crank-pin to said oscillating bar, a ratchet-pawl pivoted to said bar, a ratchet-wheel into which said pawl engages, a toothed wheel gearing into said beam-segment, toothed gear connecting said toothed wheel to said ratchet-wheel, means operated by the movement of said beam that lift said awl out of engagement, a motor-driven toothed wheel, a toothed wheel gearing with the said gear connecting the beam-operating gear to said ratchet-wheel, clutch mechanism between said last-mentioned wheel and said motor-driven toothed wheel and means controlled by the movement of said beam that places the clutch in engagement when said ratchet-wheel pawl is released and out of engagement when the return movement of :Ithe beam is effected, substantially as set orth.

6. In a press for punching, shearing,

stamping and other purposes, an extensible tool-carrier, a pivoted beam adapted to operate such carrier, a toothed segment fixed to said beam, an oscillating bar, 'a ratchet-pawl pivoted to said bar, a ratchet-wheel into which said pawl engages, a'stop-pawl engaging said ratchet-wheel, a toothed wheel gearing into said beam-segment, toothed gear connecting said toothed wheel to said ratchetwheel, means operated by the movement of said beam that lift both said pawls out of engagement and hand-gear for then rapidly rotating said ratchet-wheel in the reverse direction, substantially as set forth.

7. In a press for punching, shearing, stampingand other purposes, an-extensible tool-carrier, a pivoted beam adapted to operatesuch carrier, a toothed segment fixed to such beam, an oscillating bar, a motordriven wheel, a crank-pin on said wheel, a rod connecting said crank-pin to said oscillating bar, a ratchet-p awl pivoted to said bar, a ratchet-wheel into which said pawl engages, a stop-pawl engaging said ratchet-wheel, a toothed wheel gearing into said beam-segment, toothed gear connecting said toothed wheel to said ratchet-wheel, means operated by the movement of said beam that lift both said pawls out of engagement, a motordriven toothed wheel, a toothed wheel gearing with the said gear connecting the beamoperating gear to said ratchet-wheel, clutch mechanism between said last mentioned wheel and said motor-driven toothed wheel, and means controlled by the movement of said beam that places the clutch in engagement when said ratchet-wheel pawl is released and out of engagement when the return movement of the beam is effected, substantially as set forth.

8. In a press for punching, shearing, stamping and other purposes, an extensible tool-carrier, a pivoted beam adapted to operate such carrier, a toothed segment fixed to such beam, an oscillating bar, a ratchetpawl pivoted to said bar, a ratchet-wheel into which said pawl engages, a toothed wheel gearing into said beam-segment, toothed gear connecting said toothed wheel to said ratchet-wheel, a rock-shaft mounted in the machinefra'1ne, an arm on said shaft, a piece on said arm adapted to control said ratchet-pawl, a second arm on said rockshaft, a depending rod connected to said second arm, collars on said depending rod, a stop on said beam adapted to come 'in contact with said collars and thereby move said rockshaft, and gear for rapidly rotating said ratchet-wheel in the reverse direction when said pawl is released, substantially as set forth.

9. In a press for punching, shearing, stamping and other purposes, an extensible tool-carrier, a pivoted beam adapted to operate such carrier, a toothed segment fixed to such beam, an oscillating bar, a ratchet-pawl pivoted tosaid bar, a spring-pressed notched bar pivoted to'said oscillating bar, a ratchetwheel into which said pawl engages, a toothed wheel gearing into said beam-segment, toothed gear connecting said toothed wheel to said ratchet-wheel, a rock-shaft moiinted in the machine-frame, an arm on said shaft, a piece on said arm adapted to control said ratchet-pawl, a second arm on said rockshaft, a depending rod connected to said second arm, collars on said depending rod, a stop on said beam adapted to come in contact With said collars and thereby move said rock-shaft, a third arm on said rock-shaft, a reciprocating rod connected to said third arm, a contact-piece on one of said arms adapted to bear against said notched bar, a

'motor-driven toothed wheel, a toothed wheel 20 gearing with the said gear connecting the beam-operating gear to said ratchet-wheel, clutch mechanism between said last-men-' tioned wheel and said motor-driven toothed wheel, an operating-lever for said clutch mechanism, a tappet on said reciprocating rod adapted to move said clutch-operating lever to put the clutch out of engagement, a tooth on said clutch-operating lever adapted to be engaged by the notch of bar, substantially as set forth.

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

JULES CLIPFEL.

Witnesses:

M. TABOURDETTE, H. 0. Com

said notched 3o

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