US1164656A - Punching and shearing machine. - Google Patents

Description

C. E. MACBETH & F. C. STIENING.

PUNCHING AND SHEARING MACHINE.

APPLICATION FILED AUG.27, 191s.

mnmnn. Patented Dec. 21, 1915.

3 SHEETS-SHEET I.

Witness: Inventors J10. WM

7 9) Attorney coLuMHlA PLANOGRAPH C0,,wAsHINGToN. D. c

CHARLES E. MACBETH ANDiFBEDE-RIGK C. STIENING, 0F HAMILTON, OHIO, ASSIGNORS TO THE LONG & ALLSTATTER COMPANY, OF HAMILTON, OHIO.

PUNCI-IING AND SHEABING MACHINE.

Specification of Letters Patent.

Patented Dec. 21, m5.

Application fi1ed August 27, 1915. Serial No. 47,582.

To all whom it may concern Be it known that we, Unannns E. MAG- BETH and FREDERICK (J. Srmnrne, citizens of the United States, residing at Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in Punching and Shearing Machines, of which the following is a specification.

The invention pertains to machines designed for the punching of holes in metallic plates and for the transverse shearing of plates either before or after punching has been done.

Our invention will be readily understood from the following description taken in connecti on with the accompanying drawings in which Figure 1 is a front elevation of a punching and shearing machine exemplifying our invention, portions being broken away and a portion appearing in Vertical longitudinal secton in the plane of line a of Figs. 3 and 5: Fig. 2 a rear elevation of the sheangag: Fig. 3 an elevation of the left side of the general main parts of the machine, the bridgetree appearing in vertical section in the plane of line 6 of Figs. 1, 2, 6, and 7, and a punch-holder appearing in section in the same plane: Fig. =1 a plan of a punchholder: Fig. 5 an elevation of the righthand side of the machine with the righthand housing omitted, the bridgetree appearing in vertical transverse section in the plane of line 7) of Figs. 1, 2, 4, 6, 7 and 8: Fig. 6 a rear elevation of half of the shear-gate: Fig. 7 a plan of half of the shear-gate: Fig. 8 a front elevation of half of the bridgetree: Fig. 9 an end elevation of the bridgetree: Fig. 10a horizontal sectionof a portion of the bridgetree in the plane of line 0 of Figs. 3, 5, 8 and S): Fig. 11 a front elevation of the in erlocking rods: and Fig. 12 a plan of the interlocking mechanism.

We have seen fit to illustrate an exemplificat on of our invention in the form of a multiple punching machine having two side housings for the guidance of the ends of a punch-gate above a plate or sheet passing between the housings, but our invention is equally appl cable to a machine in which there is a single body or housing provided with a throat through which the plate or frame of the machine, consisting, in the illustrated exemplification, of a pair of side housings, a base piece, and a top brace connecting the tops of the housings: 2, a dieholder secured to the base piece of the frame and supporting punch dies secured to it inany appropriate number and disposition along the dle-holderz 3, a camshaft journaled in the frame over the die-holder and adapted to be rotated in any usual or suitable manner: 4, pitmen extending down ward from the cams on the cam-shaft: 5, the punch-gate connected with the lower ends of the pitmen and having its ends guided in the housings of the frame: 6, punch-hold ers secured to the bottom of the punch-gate and adjustable along the same was to cooperate with the punch-dies in the dieholder: 7, a punch secured in each punchholder and adapted for vertical movement therein: 8, a punch-gag mounted to slide in each puncl1holder and take position over the upper end of the punch in such manner that when the gag is over the punch the punch will be operative to cooperate with its punchdie, and when the gag is withdrawn from over the punch the punch will be at liberty to slide upwardin its holder and become inoperative for the punching operation or, in other words, gagged out of action: 9, a series of punchgag-shafts, illustrated as four in number, journaled in the front of the punch-gate: 10, punch-gag arms secured to the punch-gagshafts and adjustable along the shafts so as to be in line with the punch-holders with which they are to cooperate, thelower ends of these arms being connected with appro'-' priate ones of the punch-gags: 11, ahandle on each of the punch gag-shafts: and 12, a link connecting each of arms 10 with its appro riate punchgag.

There may be as many of the dies and punches as desired, within the lineal capacity of the punch-gate and they may be spaced apart as desired. The arms 10 of given" shafts 9 may be connected with such of the punch-gags as the work calls for. When the handles 11 are in inward position then the punch gags are over the punches. as seen in Fig. 8. but. by moving one of the hand es 11 outward, the "punch-gag vconnected with the shaft belong ng to that handle will be withdrawn from over the upward in its holder and thus"b'e'come' ga ged outof'action. Inthis manner selected ones or all of the punches may be gagged out of action by appropriate manipulation of the handles 11.

So far as the parts thus far referred to are concerned, there is nothing new; See The Long &- Allstatter Companys Patent No. 931781 of August 24th, 1909, for punch-gag mechanism, granted on the application of the present inventors.

Proceeding with the drawings: 13, indicates a bridgetree disposed at the rear of the punch-gate and having its ends rigidly secured to the housings of the frame: 14, a shear-gate disposed at the rear of the punch-gate, between the punch-gate and the bridgetree: 15, the upper shear-blade secured to the front of the shear-gate: 16, the

lower shear-blade secured to the base-pieee of, the frame in position to cooperate with the ,upper shear-blade: 17, vertical guides connecting the shear-gate with the bridgetree in such manner that the shear-gate may havefirm support and be capable of sliding vertically in order that it may cooperate with the lower lshear-blade: 18, counterbalancing mechanism connected with the shear-gate and over-balancing it in such mannerthat the shear-gate will be held normally in its uppermost position: 19, rigid stops carried by the frame, being illustrated as projecting forwardly from the bridgetree, to limit the upward motion of the shear-gate: and 20, a projection rearwardly and rigidly from the punch-gate over the shear-gate.

In the drawings the punch-gate is seen in its lowermost position, the punches having completed their punching work. When the punch-gate is in this position the projection 20 is above and free from the sheargate, and when the punch-gate rises the shear-gate will remain in its normal upward position against stop 19, being held there by its counterba-lancing mechanism. In this position of the shear-gate the upper shear-blade occupies an idle position above the; lower shear-blade, and sheets to be punched maybe passed freely through the frameand between the upper and'lower shear-blades. In this condition of the machine the punching members may operate precisely'as though the parts of the shearing mechanism were not present.

".Proceeding with the drawings: 21, inclieates a shear-gag-block mounted to slide fore-and-aft on the projection 20 at the rear of the punch-gate'and occupying a. normal position to the rear of the shear-gate: 22, the guides, of a dovetailed character, connecting the'shear-gag-bloek with projection 20 of the punch-gate: 23, rods projecting through the punch-gate and having their rear ends secured in the shear-gag-block: 24, a sheargag-shaft journaled in the front of the punch-gate: 25, arms secured on this shaft and having their lower ends connected with the front ends of rods 23: and 26, a handlever on shaft 2st;

If, now, it be desired to put the shear into operation, without doing any punching, it can be done, through suitable means, by pulling shear-gag-block 21 forward so as to occupy a position between the top of sheargate 14 and the projection 20 of the punchgate. When this has been done then the shear-blades become operative, it being understood that the punches will be gagged. The shear-gag-block 21 is pulled forward by the operation of hand-lever 26. It is our preference, having due regard for the length of stroke usually given to punch-gates, to arrange that the shear-gate be normally up in such position that the shear-gag block cannot be placed in active position without first depressing the shear-gate. This preference is founded on the fact that the preferred normal high position for the sheargate brings the upper shear-blade at such level that the shear-blades are normally entirely open so as not to interfere with the operation of punching.

Proceeding with the drawings: 27, indicates lugs projecting forward of the sheargate: 28, a vertically n'ioving rod resting on each of these lugs: 29, a depression shaft journaled in the frame: 230, arms projecting from this shaft and resting on collars on rods 28: 31, an arm fast on shaft 29: and 82, a handle for depressing arm 31.

Taking the parts as they are indicated in Figs. 3 and 5, and understanding that ball ancing mechanism 18 holds the shear-gate in its uppermost position, and so close to pio jection 20 that there is no room for the shear-gag-block over the shear-gate, if handie 32 be depressed the shear-gate will be forced down a proper distance, and'thereupon handle 26 may be operated to draw the shear-gag-block in over the shear-gate. When this has been done then the reciprocations of the punch-gate will operate the shear-gate and cause the machine to become effective as a shearing machine. The shearing members of the machine may thus be employed in transversely shearing sheets passed through the machine between the housings, either with or without regard to the punching members of the machine. The housings may be throated in the usual man her, and they are so illustrated, and this permits sheets being passed through the ma.- chine in a direction parallel with the shears so :1". to do slitting.

While it is manifest that our machine may "do punching while the shear is inactive and that it may do shearing while the punches till are inactive, We consider it of high importance that provision be made for insuring that the shearing members cannot operate while, the punching members are operative,

. and viceversa..

- Proceeding with the drawings: 33, indicates the bearings carried by the punch-gate for shear-gag-shaft 24: 3a, a plate ca ried by the punch-gate and exemplifying an upwardly projecting surface carried by the punch-gate: 35, arms projecting rearwardly from shearegag-shaft- 24c: 36, rods depending from arms 35: 37, lugs projecting rearwardly from rods 36 and adapted to engage over plate 34: so as to prevent the descent of the rods: and 38, links connecting each of the handles 11 with one of rods 36.

Assuming the parts in the relative position indicated in Fig. 3, in which the shear-gate is gagged out of action while a punch-gag is so adjusted that the punch will be effective, if it be desired to ungag the shear-gate so that the shear may become effective, it must be done by the outward movement of hand lever 26. Such outward movement of the lever will be prevented by lugs 37. Therefore, before lever 26 can be moved outwardly to make the shear effective, all of the handles 11 pertaining to the punchgags must be pulled outwardly in order to release lugs 37 from plate 34. Vhen all of the punch-gag handles have been moved outwardly then the shear-gag may be gotten into position to make the shear effective, and the arrangement is obviously such that this cannot be done until all of the punches are rendered ineffective. And it is also manifest that while the shear is effective no punch can be rendered effective, there thus being present an interlocking system of mechanism insuring that a punch and the shear cannot be effective at one time.

The term gag, as used in punching and shearing machinery, calls for something in the way of definition in view of the fact that the gagging takesplace when the agent is out of action. By the terms gag or gagging we therefore means a device or function in which when the gag is removed from its active field the member controlled bv that gag is inoperative. In other words, the gag acts by reason of its absence, to so express it. I

' It is to be understood that the particular construction set forth is merely a single exemplification of our invention. We have sought to set forth the principle of our invention and the best mode in which we at present contemplate applying that principle.

We claim 1. A punching and shearing machine comprising in its mechanism, a' frame, a die. a punch, punch-moving means connected with the punch, a punch-gag adapted to render the punclrmoving means inoperative upon the punch, a-fixed shear-blade disposed near the die, a movable shear-blade adapted to be nism, a shear-gag adapted to render the punch-moving mechanism inoperative upon the movable shear-blade, means for moving said gags, and interlocking means operatively connected with said gags and adapted to prevent either of the gags being moved out of gagging position while the other gag is out of active position, combined substantially as set forth.

3. A punching and shearing machine comprising in its mechanism, a frame, a. die, a punch-gate, mechanism for moving the punch-gate, a punch nwvably mounted upon the punch-gate, a punch-gag associated} with the punch-gate and punch and adapted to be adjusted to such position as willcause the punch-gate to impart the full measure of its stroke to the punch or to be adjusted to such position as to be ineffective of the punch, thus the punch out of action, a fixed shear-blade disposed below the operative face of the die and near the die, a shear-gate, a. movable shear-blade carried by the shear-gate, a projection carried by the punch-gate and extending over the sheargate, a normally gagging shear-gagblock adapted to be interposed between said projection. and the shear-gate to cause the punch-gate to become effective in moving the Shem-gate, and mechanism for adjusting said gags, combined substantially as set forth.

i. A punching and shearing machine comprising in its mechanism, a frame, a die, a punch-gate, mechanism for moving the punch-gate, a punch movably mounted upon the punch-gate a punch-gag associated with the punch-gate and punch and adapted to be adjusted to such position as will cause the punch-gate to impart the full measure of its stroke to the punch or to be adjusted to such position as to be inoperative with the punch, thus gging the punch out of action, a fixed shear-blade disposed below the op erative face of the die and near the die. a

shear-gate, a movable shearblade carried by the shear 'ate a )rojection carried by the 1:: 9 I V v punch-gate and extending over the sheargate, a normally gagging shear-gag-block' adapted to be interposed between said projection' and the shear-gate to cause the punch-gate to become effective in moving the shear-gate,mechanism for adjusting said gags, and interlocking means operatively connected with said gags and adapted to prevent either of the gags being moved out of gagging position while the other gag is out of active position, combined substantially as set forth.

5. A punching and shearing machine comprising in its mechanism, a pair of movable gates disposed near each other, mechanism operatively connected with the gates for moving them, a tool carried by each gate, and a gag for each gate to serve in throwing either selected tool out of action, combined substantially as set forth.

6. A punching and shearing machine comprising in its mechanism, a pair of movable gates disposed near each other, mechanism operatively connected with the gates for moving them, a tool carried by each gite, a gag for each gate to serve in throwing either selected tool out of action, and interlocking means connected with the gags to serve in throwing either selected tool out of action, combined substantially as set forth.

7. A punching and shearing machine comprising in its mechanism, a frame. a punchgate guided therein, a punch carried by the punch-gate, means for operating the punchgate, a punchgag to serve in rendering the punch inoperative while the punch is moving, a downwardly presenting projection on the rear of the punch-gate, a shear-gate disposed below said projection and guided in the frame, a gag-bar carried by said projection and adapted for movement to and from a position between said projection and the shear-gate, rods projecting from the sheargag through the punch-gate, and mechanism connected with said rods for adjusting the shear-gag to selected position, combined substantially as set forth.

8. A punching and shearing machine comprising in its mechanism, a first gate, means for moving the gate, a second gate carried by the first gate and adapted to be moved therewith, and a gag cooperating with the gates and adapted to cause the second gate to remain stationary while the first gate is in motion, combined substantially as set forth.

9. A punching and shearing machine comprising in its mechanism, a first gate, means for moving the gate. a second gate carried by the first gate and adapted to be mo ed therewith, a gag operating with the gates and adapted to cause the second gate to remain stationary while the firstgate is in motion, and manually controlled mechanism for moving the second gate relati e to the first one prior to the adi-ustment of the gag to, position corresponding with conjoint movement of the gates, combined substantially as set forth.

10. A aunching and shearing machine comprising in its mechanism, a first gate, means for moving the gate, a second gate carried by the first gate and adapted to be moved therewith, a gag operating with the gates and adapted to cause the second gate to remain stationary while the first gate is in motion, manually controlled mechanism for moving thesecond gate relative to the first one prior to the adjustment of the gag to position corresponding with conjoint movement of the gates, and counterbalancing mechanism connected to the second gate to serve in elevating that gate when gagged out of action, combined substantially as set forth.

11. A punching and shearing machine comprising in its mechanism, a first gate, means for moving the gate, a second gate carried by the first gate and adapted to be moved therewith, a gag operating with the gates and adapted to cause the second gate to remain stationary while the first gate is in motion, manually controlled mechanism for moving the second gate relative to the first one prior to the adjustment of the gag to position corresponding with conjoint movement of the gates, counterbalancing mechanism connected to the second gate to serve in elevating that gate when gagged out of action, and a stop to limit the elevation of the second gate, combined substantially as set forth.

12. A punching and shearing machine comprising in its mechanism, a pair of gates each carrying a tool, mechanism for actuating the gates, a gag cooperating with the first gate of the pair and the tool carried by that gate, mechanism for causing the second gate to be moved by the first gate, a gag cooperating with both gates, a handle for adjusting the first gag, a handle for adjusting the second gag, a projection carried by one of the gates, a lug ope 'atively connected with one of the handles and engaging said projection, and operative connections between the other handle and said lug and adapted to prevent both gags being put to ungagging position at the same time, combined substantially as set forth.

13. A punching and shearing machine comprising in its mechanism, a frame, a die carried by the frame, a lower shear-blade carried by the frame at the level of the top of the die. a punch-gate, a puncli carried by the punch-gate, a punch-gag cooperating between the punch and punch-gate. a sheargate carrying the upper shear-blade and movab e relative to the punch-gate. counterbalancing mechanism for normally holding the shear-gatein upward open position. a

stop to limit the upward motion of the sheargate, manually operated means for depressing the shear-gate relative to the punch-gate, and means for connecting the two gates after the shear-gate has been moved downwardly relative to the punch-gate so that the gates may move in unison, combined substantially as set forth.

14. A punching and shearing machine comprising in its mechanism, a punch-gate, a punch carried thereby, a gag cooperating With the punch and punch-gate, a shear-gate adapted to be moved by the punch-gate, a

shear-gag-block cooperating With the tWo gates and carried by the punch-gate, a sheargag handle carried by the punch-gate, and operative connections from said handle to the shear-gag-block, combined substantially as set forth.

15. A punching and shearing machine comprising in its mechanism, a frame having side housings, a punch-gate having its ends guided in said housings, a bridgetree disposed at the rear of the punch-gate and connecting the two housings, a shear-gate disposed between the punch-gate and the bridgetree, and guiding devices connecting the shear-gate and bridgetree, combined substantially as set forth.

16. A punching and shearing machine comprising in its mechanism, two gates, a tool carried by each gate, a gag cooperating with one of the gates and the tool carried by it, and a gag adapted to be moved into such position as Will connect the tWo gates and cause them to move in unison, combined substantiaily as set forth.

CHARLES E. MAGBETH. FREDERICK C. STIENING. Witnesses:

Geo. JOHNSON, J. E. MARK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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