US1279886A

US1279886A - Punch.

Info

Publication number: US1279886A
Authority: US
Inventors: Otto P Leinhauser
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-06-01
Filing date: 1917-06-01
Publication date: 1918-09-24
Anticipated expiration: 1935-09-24

Description

0. P. LEINHAUSER.

. PUNCH.

APPLICATION FILED JUNE 1. I917. 1,27 9,886. Patented Sept. 24,1918.

UZtOPLeZ'I Ihauser fi 1w: mwms PEI-Ens can Puumu'rna. WAsumuwn. 1;. in

chine from punching.

stantially horizontal position. A set collar 24 is adjustably mounted on the plunger rod 21, and carries the bearing members 20 aforesaid, through the medium of which the rod 21 is forced downwardly, against the tension of the spring 23, when the lever arm 15 is actuated by the cam 17 to face the bifurcated end of said lever down. A collar 25 is adjustably secured on the plunger rod 21 adjacent the lower end of the latter, and is provided with a lug 26? adapted for coiiperation with an electrically actuated latch 40 controlled by the member 26, the latter beinginthe form of a solenoid, and whose operationwill be hereinafter ex plained. A' bearing bracket 27 is attached to the face plate of the punch and has journaled therein a rock shaft 28 one end of which is in a bearing 29 in the bracket 30. An arm 31 is attached to one end of the shaft 28 and is pivotally connectedto the plunger rod 21 while the opposite end of the shaft 28 carries 'a bifurcated lever 32 which is pivotally and slidably connected to the head 33, of a bolt 34, which is threaded into the block 35. For this purpose the head 33 is provided with the vertical slot 33 as clearly seen in Figs. 2 and 3. Depending from the bolt 3 4 is a tongue or bar 36 for supportin the stem portion of-a stripper member 3 the latter having abeveled end 38,.which is adapted to be moved into and out of engagement with the notch 13,

formed in the punch stock 12, and when engaged therein, is to be positively actuated for withdrawing the punch from the work during the upward movement of the head.

The member 37 is mounted for 'endwise movement throu h its opening in the. tongue or bar 36, and a out said'member, is'a coil spring 37, see Figs, 2 and 3, which is disposed between the adjacent faces of the tongue or bar 36 and the shoulder '38 of the beveled end 38 of the stripping member.

With the parts constructed and arranged operation,'briefly stated is as follows:

Normally the block 35 is removed from over the punch stock 12 to prevent the malVhen ready forope ration. the operator presses a push button 39 electrically connected with the solenoid 26 which completes an electric circuit, energizing the solenoid 26 and withdrawing the latch tO from contactwith the lug 26', on the collar 25 carriedloy the plunger rod 21. As soonas this is done the'spring 23, acting upon the collar 22 lifts the plunger rod 21 raising the endof the. arm 31 which is .piv-

'otally connected with said rod, thus actuating 'the'rock shaft 28 so as to throw the lower end of lever; 32 tothe right in Fig. 2,

carrying with it the 'block 35,.the tongue, or

bar 36 movin, z; with said lever 32 and the distended. Further revolution of the shaft 7 2 causes the cam 17 which is properly timed in itsaction to engage the roller 16 raising the same and consequently the adjacentportion of the lever arm 15 and forcing the other end downward against the tension'of the spring 18 'so that the-bifurcated end of the lever arm engaging the members 20 forces the plunger rod downward.

. When the cam 17 has moved upward to the point where it engages the rollers 16 the punch has been withdrawn from the mateger rod causes the lever 32 to move outward and withdraw the block 35 from over'the "punch stock 12. i

When the tongueor bar 36 has moved out.-

ward sufficiently to engage the nut 38? it pulls the beveled endj38 of the stripper out of engagement with the, notch 13 of the punch stock 12 and the parts are in position for another'set of operations. ,7

Itwill be evident that the outward movement of the block 35 brings the samevout of alinement with the punch stock 12, so that the latter may move upwardly, and the stripper 38 serves as an automatic means for removingv the punch from the hole in the material, the said stripper being, automatically withdrawn from engagement with the notch 13'ofthe punch stock 12.

rial by'the'upward movement of the head and the downward movementvof the plun-' n win he understood thatthe gag block 35,.the bar 36 and the stripper 1nembers'37, 38 move upward with the head, the'slot'33 in the he'ad133 ofthe bolt 34 permitting this movement, r I The head-3 isof the floating type, be

ing reciprocated back and forth continually in a well-known way and by any suitable form of eccentric'a'nd cOiSperating parts' on the shaft 2, which it 'is not thought necessary to illustrate or to describe in detailr Having thus fully described the invention, what is claimed is; i i

1 In a punch, a meted punch stock," 'a.

punch head associated therewith, aga

v bl veffthe 'punch stock, a stripper sliding movement with the stripper, means for controlling the movement of said rocker shaft and means whereby the gag moves for a portion of its movement independently of the stripper,

2. In a punch action, a notched punch stock, a punch head associated with said punch stock, a gag, a stripper movable with said gag and adapted for engagement with the notch in said punch stock, a rocker shaft, an arm carried by said rocker shaft and connecting said stripper for actuating the latter during the movement of said rocker shaft, a plunger'rod for imparting a rocking movement to said rocker shaft, and means for controlling the movement of said plunger rod.

3. In a punch action, a notched punch stock, a punch head associated with said punch stock, a gag, a stripper adapted for engagement with the notch in said punch stock, a rocker shaft, an arm carried by said Gap!" 0! this patent may be obtained for flve eents each, by addressing the commissioner of Patents,

rocker shaft and connecting said stripper for actuating the latter during the movement of said rocker shaft, a plunger rod for imparting a rocking movement to said rocker shaft, a rocker arm for controlling the movement of said. plunger rod, and

means for actuating said rocker arm.

4. In a punch action, a notched punch stock, a punch head associated with said punch stock, a gag, a stripper movable with said gag and adapted foreengagement with the notch in said punch stock, a rocker'shaft, an arm carried by said rocker shaft and connecting said stripper for actuating the latter during the movement of said rocker shaft, a plunger 'rod for imparting a rock I mg movement to said rocker shaft, a rocker arm for controlling the movement of said plunger rod, and a cam for actuating said rocker arm. I

In testimony whereof I affix my signature.

OTTO P. LEINHAUSER.

washington, D. 0.