US2238680A

US2238680A - Punch

Info

Publication number: US2238680A
Application number: US367692A
Authority: US
Inventors: Charles C Cruzan
Original assignee: TRUSSELL Manufacturing CO
Current assignee: TRUSSELL MANUFACTURING Co
Priority date: 1940-11-29
Filing date: 1940-11-29
Publication date: 1941-04-15
Anticipated expiration: 1958-04-15

Description

April 15, 1941. c. c. CRUZAN PUNCH Filed Nov. 29, 1940 2 Sheets-Sheet 1 u m7 am T WW M /VZ T w m m mu 0 DAN C w 6 m TN M 3 H Mm Q C. C. CRUZAN April 15, 1941.

PUNCH 2 Sheets-Sheet 2 Filed Nov. 29, 1940 INVENTOR. if 6. 611121112 on a vertical stud Patented Apr. 15, 1941 2.238.380 PUNCH Charles C. CruIanQHyde Park. N. ,Y., assignor to Trussell Manufacturing (lompalmllonghkeepsie, N. Y., a corporation of New York I Application November 29, 1940, Serial No. 367,692

. 16 Claims.

The invention here disclosed relates particularly to punches of the type designed for per-.

forating sheets vused inbinders, as coveredin the patent issued to. C..D. Trussell, No. 2,114,259 of April 12.11938.

Special objects of the present invention are to simplify and improve the mechanism for gaging, feeding and positioning the sheets in respect to the punch mechanism and to enable the operator to exercise desirable control of the speed and operation of the-machine.

Other objects and thenovel features of invention by which the purposes of the invention are attained will appear or are definitely set forth in the course of the following specification.

The drawings accompanying and forming part of the specification illustrate one of the present commercial embodimentsof the invention. Ac-

tual structure however may be modified and changed in respect to this disclosure; all within the true intent of the invention aswill appear from the broad scope ofthe claims. i i

Fig. 1 is a side elevation of the machine with parts of the, press head broken away and appearing in section.

Fig.2is a broken rear. view of the machine,

with the clutch casing shown in section.

Fig. 3 is anenlarged broken sectional view, taken on substantially the plane of line .3-3 of Fig. 1. i I i Fig. 4 is a broken part sectional view as on substantially theplane of line H of Fig. 1.

Fig. 5 .is a broken sectional detail as on substantially the plane of line 3-5 of Fig. 3.

Fig.6 is a broken sectional detail of the pane feeding finger construction.

Fig; '7' is an end view of the same.

Figs.8 and 9,are broken part sectional; detail views ofthe clutch, control lever and releasable lock for the same. i i

The machine illustratedis. like that of the patent identified, involving a feed table i0, over whichoperate opposed-side gages ll, l2, and a back gage l3, Fig. 3, for centering and advancing the, sheets It, to the. frontgage l5, and by which cooperative action, a stack of sheets may be registered and accurately registered for perforation by the punches it. I

In thepresent invention, the slides l1, l8, l9, which carry the side and back gages are core lated by connectin g them by links 29, 2|, 22,

on studs 25, projecting from the slides down through slots 23, in the table and as pivotally engaged at their inner ends on studs 21, carried by member 23, which at such point is in the nature of a crank disc. j

The lower, sleeve portion of member 23, as shown in Fig. 5, is developed into apinion 28, bearing on: the bracket 29, which. carries the pivot stud 24. l i i Tensionsprings 30,.are connected between the lower ends of the slide carried studs 25 and hooks 3|, on a ring 32, sleeved over the hub portion of the crank member 23. Thesesprings thus'have theeffect of drawing the'slides in-. wardly to close the side gages .against. opposite sides ofthe sheets and to advance the back gage to square up the back edges and feed the sheets a up to the front gage. a Theopening or retractive movement of the gages is effected by a rack 33, slidably guided in the bracket 29, said rack being carried. by

or formed on the front end of a rearwardly projecting plunger 34, carrying a roll 35,.in engagement with a cam 33, on shaft 31, iournalled in bearings 38, at the back of the machine, Fig. 2.

To hold the follower of the rack bar 34, at

all times in smooth engagement with the cam 36, an expansion spring 39, Fig. 4, is located in i said bar back of a plunger 40,:seated in the w end of a bar and thrusting against a fixed abutment II. t i

The cam operated rack and pinion, with link connections to theslides, provides a mechanically simple, compact, direct and reliable means.

.for quickly opening orretracting the gages and the spring connections at 30, serve as a means.

constantly acting to close the gages on the sheets, as fast as permitted by retreat of the rack bar. The shape of the cam- 36, therefore determines both the opening, and closing action of the gages and can be designed to meet variwith a common actuator 23, mounted to oscillate 24, Fig. 5. These links are shown as pivotally engaged at their outer ends ous requirements. The springs 30, take up any lost motion that may be present in the rack and pinion and linkage system and the spring 39, assists in taking up ,any lost motion and keeps the rack bar in smooth following engage-- ment with the actuating eam. The links are shown in Fig. 4 as having elbows 42, to afford clearance in the gage closing movement when the crank disc 23, rotates clockwisein Fig. 4,

upon rearward movement of the rack bar 34. i i

The feed gage I3 is shown inFigs. 6 and 7,

as of special construction having incorporated in the front faceof the same resilient pushers in the form of discs 43, carried by plungers N. 1

permitted by the adjustable screw abutments 46. Pins 41, carried by said discs and sliding in seats 48, in the front of the gage hold the yielding sheet pushers against any rotary movement and lugs 49, dependent from the discs. and sliding in the grooveways 50, in the table, at opposite sides of the gage slide is, assure these pusher plates'engaging the edge of the lowermost sheet or'a single sheet that may be somewhat wrinkled or curled.

The punches I6, operate in die blocks 5|, held down on the bed of the machine by the forward ends of clamp levers 52, mounted to rock on a fixed shaft 53, and carrying the screws 54, at their rearward ends bearing on a clamp bar or abutment piece 55. This construction enables quick and accurate individual adjustment and the ram, said rocker carrying a pivot stud 53, at

its rearward end engaged by pitman 64, actuated by theeccentric or crank pin 65, on theend of shaft 31.

The combination cam and crank shaft 31, is

, operated in the present disclosure from a combination motor and variable speed drive unit 66, secured at 61, on the back of the machine base and terminating in a drive shaft 68, coupled at 69, with a shaft 10, parallel to shaft 31, and connected with the latter by pinion 1| and gear 12.. A hand wheel 13, on the end .of shaft 10, enables hand operation of the punch for setting up theparts, etc., and a hand wheel at 14, provides for adjustment of the variable speed drive unit to control speed of operation of the press at any time.

To enable instant starting and stopping of the machine, there is incorporated with the gear 12, a one revolution clutch indicated at 15, and having a trip pin' at-16, controlledby a latch lever 11. A foot pedal 18, projecting at the front of the machine and pivotally supported at 19, is connected with latch lever 11,'by link 80. A spring 8|, adjustably connected at 82, with link 80, exerts tension to rock the inner end of latch lever 11, upwardly into the open clutch position and to rock the clutch pedal 18, into itsupper position.

The clutch is tripped to start the machine by stepping on the pedal 18, and the machine may be instantly stopped at any time then, by simply removing pressure from the foot pedal.

When it is desired to feed the machine with the machine running continuously, the clutch pedal may be locked down, in the running position by a latch shown in Figs. 1, 8 and 9, in the form of a lever 83, pivoted on the base at 84, in position to swing over the pedal lever 85, when depressed and having a hook 86, then engageable over such lever to hold it downward in the running position, Fig. -9. The latch lever 83, is shown as-weighted at 81, so that it will release the pedal lever by simply depressing the latter sufllciently to clear the hook 86, whereupon the latch will drop dow'n'in the Fig. 8 position. For lifting the latch up intothe holding position, said latch is shown provided with an upstanding kick lug 88,

. 2,238,680 pressed outwardly by springs 45, to the extent which may be placed so as to enable the clutch pedal to be depressed and locked down by a downward and sidewise twisting movement of one foot.

What is claimed is:

1. In a punch of the character disclosed, the combination of a table, a front stop for gaging material on said table, a punch element for operating on material against saidfront stop, opposed side gages mounted for sliding movement over the table, a back gage slidingly mounted on .the table in opposition to the front stop, a rotatably mounted actuator for said gages, links pivotally connected between said gages and actuator and means'for oscillating said actuator.

2. In apunch of the character disclosed, the combination of a table, a front stop for gaging material on said table, a punch element for operating on material against said front stop, opposed side gages mounted for sliding movement over the table, a back gage slidingly mounted on the table in opposition to the front stop, a rotatably mounted actuator for said gages, links pivotally connected between said gages and actuator,

means for oscillating said actuator, including springs connected between said gages and actuator for shifting the gages in one direction and rotating the actuator in one direction and means for rocking the actuator in the opposite direction and for shifting the gages in the opposite direction.

3. In a punch of the character disclosed, the combination of a table, a front stop for gaging material on said table, a punch element for operating on material against said front stop, opposed side gages mounted for sliding movement over the table, a back gage slidingly mounted on the table in opposition to the front stop, a rotatably mounted actuator for said gages, links pivotally connected between'said gages and actuator, means for oscillating said actuator, including springs connected between said gages and actuator for shifting the gages in one direction and rotating the actuatorin one direction, means for rocking the actuator in the opposite direction and for shifting the gages in the opposite direction, said latter means including a cam, a rack actuated by said cam and a pinion engaged by said rack and connected with said actuator.

4. In a punch of the character disclosed, the combination of a table, a front stop for gaging material on said table, a punch element for operating on material against said front stop, opposed side gages mounted for sliding movement over the table, a back gage slidingly mounted on the table in opposition to the front stop, a rotatably mounted actuator for said gages, links pivotally connected between said gages and actuator, means for oscillating said actuator, including springs connected between said gages and actuator for shifting the gages in one direction and rotating the actuator in one direction, means for rocking the actuator in the opposite direction and for shifting the gages in the opposite direction, said latter means including a cam, a rack actuated by said cam and a pinion engaged by said rack-and connected with said actuator, said actuator having a hub portion and a ring rotatably engaged on said hub portion and forming an anchorage for the inner ends of said springs.

combination of a table, a front stop for gaging material on said table, a punch element for op- 5. In a punch of the character disclosed, the

on the table in opposition to the front stop. a

rotatably mounted actuator for said gages, links pivotally connectedbetween said gages and actu-' ator and means for oscillating said actuatonineluding a rotary shaft, a cam on said shaft, operating connections from said cam to said actuator and operating connections from, said shaft to said punch element.

6. In a punch of the character disclosed, the combination of a table, a front stop for gaging material on said table, a punch element for operating on materialagainst said front stop, op-

posed side gages mounted for sliding movement over the table, a back gage slidingly mounted on the table in opposition to the front stop, a rotatably mounted actuator for said gages, links pivotally connected between said gages and actuator and means for oscillating said actuator, including a rotary shaft. a cam on said shaft,

operating connections from said cam to said actuator, operating connections from said shaft to said punch element and clutch mechanism for controlling instant stopping and starting of said shaft. '7. In a punch of the character disclosed, the

combination of a table, a front stop for gaging material on said table, a punch element for operating on material against said front stop, op-

1 posed side gages mounted for sliding movement ator and operating connections from said shaft to said punch element, a variable speed drive for said shaft and controllable clutch means interposed between said variable speed drive and shaft for effecting instant stopping and starting of said shaft.

8. In a punchof the character disclosed, the combination of a table, a front stop for gaging material on said table, a punch element for operating on material against said front stop, opposed side gages mounted5for sliding movement over the table, a back gage slidingly mounted on the table in opposition to the front stop, a rotatably mounted actuator for said gages, links pivotally connected between said gages and actuator and means for oscillating said actuator, including a rotary shaft, a cam on said shaft, operating connections from said cam to said actuator and operating connections from said shaft to said punch element, clutch mechanism for controlling instant stopping and starting of said shaft, including a foot pedal and a foot operable latch for retaining said foot pedal in one relation.

9. In a punch of the character disclosed, a re- ,ciprocating ram, a rocker for actuating the same,

a shaft, an eccentric memberon said shaft, a drive connection from said eccentric member to said rocker, a cam on said shaft, a rack bar actuated by said cam, a feed table associated with the ram, material gaging mechanism on said feed table, a pinion operated by said rack bar, connections from said pinion to said gaging mechanism, a clutch on said shaft and means for effecting instant operation of said clutch.

10. In a punch of the character disclosed, the combination of a table, a front stop for gaging material on said table, a punch element for operating on material against said front stop, opposed side gages mounted for sliding movement over the table, a back gage slidingly mounted on the table in opposition to the front stop, a 1'0- tatably mounted actuator for said gages, links pivotally connected between said gages'and actuator, means for oscillating said actuator, including a pinion connected with said actuator, a rack engaged with said pinion, arotary shaft, means on said shaft for effecting reciprocation of said rack and connections from'said same shaft for effecting actuation of said-punch element.

11. In a punch of the character disclosed, the

combination of a table, a front stop for gaging material on said-table, a punch element for operating on material against said front stop, opposed side gages mounted for sliding movement over the table, a back gage slidingly mounted on the table in opposition to the front stop, a rotatably mounted actuator for said gages, links pivotally connected between said gages and actuator, means for oscillating said actuator, including springs connected at their outer ends-with said gages and a ring rotatably centered on said actuator and to which the inner ends of said springs are secured.

12. In a punch of the character disclosed, the

combination of a table, a front stop for, gaging material on said table, a punch element for operating on material against said front stop, op-

posed side gages and a back gage, one at least of said side gages and said back gage being slidingly mounted on said table in cooperative relation to said other side gage and to said front stop, an actuator for said movable gages mounted on a vertical axis beneath said table, links pivotally connected between said movable gages and actuator, spring means for moving said movable side and back gages toward said other side gage and said front stop, a rack and pinion for tuming said actuator to efi'ect shifting of said movable gages through said links in the opposite directions and common means for effecting actuation of said rack and operation of said punch element.

13. In a punch of the character disclosed, the combination of a table, a front stop for gaging material on said table, a punch element for operating on material against said front stop, opposed side gages, one movable toward and away from the other and a back gage movable toward and away from said front stop, a rotatable actuator for said gages mounted beneath said table, lin'ks pivotally connected between said movable gages and actuator, a rotary shaft, operating connections from said shaft to said actuator and from said shaft to said punch element and clutch mechanism for controlling instant stopping and starting of said shaft.

14. In a punch of the character disclosed, the

posed side gages, one movable toward and away from the other and a back gage movable toward and away from said front stop, a rotatable actuator for said gages mounted beneath said table, links pivotally connected between said movable gages and actuator, a rotary shaft, operating connections from said shaft to said actuator and from said shaft to said punch element, and clutch mechanism for controlling instant stopping and starting of said shaft, including a foot pedal and a foot operable latch for releasably retaining said foot pedal in one relation.

15. In a punch of the character disclosed, the combination of a table, a front stop for gaging material on said table, a punch element for operating on material against said front stop, onposed side gages, one movable toward and away from the other anda back gage movable toward and away from said front stop, a yieldable pusher in the front face of said back gage in opposition to said front stop, a rotatable actuator for said gages mounted beneath said table, links pivotally connectedbetween said 'movable gages and actuator and means for oscillating said actuator.

16. In a punch of the character disclosed, the combination of a feed table, a front stop for gaging material on said table, a reciprocating punch element above said table for operating on material advanced against said front stop, a gage 1 for one side edge of material on said table, an

opposed side gage movable toward and from said first mentioned side gage, aback gage movable over the table in' opposition to said front stop, a rotatable actuator connected to said movable side and back gages and mounted on a vertical axis beneath said table, a pinion carried by said actuator, a horizontal shaft in back of said teed table, a slide operated from said shaft and extending forwardly beneath said table and provided with a rack in engagement with said pinion, operating connections from said shaft to said reciprocating punch element and clutch mechanism for controlling instant stopping and starting of said shaft.

. CHARLES C. CRUZAN.