US2263967A - Inking device - Google Patents

Description

NQW i941 R'L. GREENLEAF INKING DEVICE 2 Sheeis-Sheet 1 Filed March 15', 1940 4 12-2. Green/ear.

UN TED Si.

NKINGDEVICE ert L. Greenleaf, Anbilrn mg fl pplication- Mat-1 .011315, 19 .s f Nfl- 3249 .75

I (Cl. El e-305)? This..-sinvention. relates to an improvedinking device for use with stampingand embossin g ma chinesof the type. shown in my application, Se rial No. 294,941, filed Sptembenlh 19393 One :objectof the sinvention is to provide an inkingiadevice which will be operative. fen uni formly :inkin'gni the striking: surface: :of; a die so thatsaidxdie ;lWi]]. .be properly; inked. Lpreliminary toiaz-markin'geoperatiorrs Another sobjectzofa theinventionx is to provide ancinking .zdevioewhichlwiil Link .the. die: in such a :manner that IheI BLWiuilbQ-nOLSul/DhlS rofsink: on the: die; 1 with thetresnlt that; a- ;clean .line will be assuredand; waste of inkiobviated;

Aifurther obj eot'; of ..-the;=invention. is .to .provide an inking device which; will; inoludeian rink: .rollwhich is mounted-so that; whemthe; strikinglhead employed .is:-.movedirear.-wardly,- said inki-ngnroll will .be released.:-.and.-.will travel ;over .theiaoeeof the: die.asrthe'strikingohead moved forwardly for: completelyg-and:efiectivelyqinkingxsaids die;

A further: obj ectof. the-invention ,isitmprovide an inking: device including. improvedrmounting mechanism which; will: beioperative:forsholding the ;-ink:-roll iin-ian inoperative: position except at suoh'time' wlienlsaid;v inkalroll' isnactuallyginking the.face.:of1.the die;

Ari-still"furtherpobject of: tIIB iIlVEIIDiOIIJJiS to provide: an inking -;.de.vice remploying simproved latch mechanism for :releasing. thesinkerollasosas to permit: it .to. engage; the; face. ofi; the; :die fonaan inkingpp eration.

Still. another. obiect of: the inventiongisz to; pro: vide an ink-ingdevice employingim-proved means for mounting the inkarolhsaid meansl'beingzoni erative for. urging the ink. roll into engagement with the; face-f. the;-.die during m inking operation.-

And a still-1 further. :objeot of 1 the invention {is to provide ea-deviees 10f; this character employing raiisonrthezdie; holder; whichrails :will be effective" for: automatically; returning; the ink; roll to inoperative position after the face of the die has been inked, said rail including means for auto matically releasing the inle rolln preliminary :to a die -inking;;operation..

And :another' object of: the invention-is to pro-v vide:- an inking idevice employing? an. ink well for inking; the roll :when necessary.

Other objects. .ofrthe invention willrbe made known :as-Lthea description proceeds;

In the drawings:

Figure:.1.is:.a perspective .view-o-f .agmarking maohine andnshowingmimmoved inkinggdevice position with. theqink roll ofitmy inkingvdevice in en-gagement' with the-die,

Figure 3 151a;side-elevation showing the marking machine :with;the-striking headin its ere-are most: positionand-showing in section; therelease dogin engage ent -with.;.the-latoh ;for -,releasing the. inkrroll'; preparatoryytman ink ing ,-operation and Figl l-llei'4 -isamen1arged detai-l vertical-sectional View showing; the method of: mounting the-plung erswhich support therends of" theiinkwrolll Referring. now to thadrawingsrwhereinyas will be seen, similar reference numerals r{designate similar parts throughout the-,several-.views,} the numeral I indicatesginageneral4 a-..marking..- mas chine-of the type; shewndn my pendi-ng, applica: tion heretofore referred to.-;- Thee marking; ma, chine i. l includes a zframe. .2 -which-dis preferably formed as a single unit casting; 'I'heframeLZ-inscludes .-a work-sunportingitable .3 andva platform 4, saidplatform-being disposed in a rparallel plane above thatiof the. work-supnortingetable 3.", As will be noted, the .workesupportingatable extends substantial-1y, halfzthellength of the framefl while the platform extends substantially -the otherxhalf of the: length vof said-frame. Feet-,R-are'formed onthe. opposite. endsoftheframevand are taper-e turedior receiving; fastening. devices.-- AI 3181 1 11: 03.113 extending shoulder 6 is defined. between the.work-supportingtabl. 3.. and. the, platform 4'. Side. walls .1 V and Bareprovided .for. the frame. .2-.

Associated withthe frame 2..is. a striking head 9;to which is. removably' connected the. dieghold-l er HL'. Thedie holder l0 supports,aldie whioh is to. be engaged with :the upper surface of work [on thework-supporting. table 3,; Pairs...of Icon necting rods IZ-and l3' operativelv'connectthe striking head. 9 with theframe v2i; As .the..,co'n.- struction. of. the...striking .head,;..the.. connecting rods,.-.andthei-fiame. are set. forthiully ,in. the pending applieationheretofore mentioned,.it is not believed necessary 1 to. discuss this construe.- tionin .more detail, in this. application.v My, im' proveddnk-ing device includes .an ink roll .I 4. which is formed .of sponge rubberor other suitablema, teriaL; The-ink :rollqld isrmountedmabovethe platform :4 at the -forward end thereof and-near theshoulder-i5; The-inkmo-lll 4 is, mounted onfa shaft; 1 iii-which iextendsgthroughout the :width ;of thegframe. ...and; pastz-athe sidewalls .7 and rfi; Mounted on; the-.oppositdends of theeshaftzli xare rollers l6 which are rotatably engageable with tracks l1 on the sideedges of the die holder Hi. It will be understood that the rollers IE will roll along the tracks I! when the striking head is shifted forwardly for effecting a stamping or embossing operation. Small rollers l'l are carried on the corresponding inner ends of the track H and engage the rollers l6 so as to reduce wear and provide smoother operation for the rollers IS on the track l1. Outwardly extending trunnions l8 are formed on the rollers l6 axially thereof. These trunnions are engageable with the latch mechanism, to be described in more detail hereinafter.

In order to mount the ink roll, I employ plungers l9 and 20. The plungers l9 and 20 are of identical construction so that a description of one will suffice for both. As seen in Figures 1, 2 and 4 of the drawings, the plungers are mounted in the platform 4 at the forward end thereof adjacent the shoulder 6. The plunger 20 is typical and includes a stem 2| which has a counterboredupper end which is internally threaded to define a socket 22. The lower end of the stem 2| extends through a boss 23 on the platform 4 and into the frame beneath said platform. A flange 24 is fitted on the stem, near its lower end, and serves a two fold function of limiting 'upward travel of the stem and of providing a seat for the upper end of a coil spring 25. The coil spring 25 is mountedin a guide cylinder 26 which extends throughout the height of the frame. Screwed into the socket 22 is a supporting screw 21 which is formed with an arcuate upper end 28. The upper end 28 receives the shaft l of the ink roll [4 at a point between the end of said ink roll and the inner surface of the roller l6.

It-will now be seen that the plungers 29 effectively support the ink roll in operative position. The springs 25 will urge: said plungers upwardly for urging the ink roll into engagement with the under surface of the die on the die holder during an inking operation. The position of the ink roll on the plungers 20 may be adjusted by temporarily removing the ink roll from the screws 21, and then rotating said screws to the desired position with respect to the stems. In order to retain the plungers in inoperative position, in which position the ink roll will be retained except when actually inking the face of the die, I provide latches which are shown generally at 29. Two of the latches 29 are employed, one on each of the side walls 1 and 8 of the frame. As will be seen by referring to the drawings, the latches are mounted on the side walls near the shoulder 6 and directly beneath the trunnions l8. Inasmuch as the latches are of identical construction, a description of one will be suflicient. A typical latch includes a base 30 which is substantially rectangular in shape. The base is held in place on the side walls of the frame by means of screws 3i. A portion of the upper end of the base 39 is turned outwardly at a right angle to define a bracket 32. An adjusting screw 33 is extended through the bracket. A post 34 is mounted on the base near its upper corner and serves to mount one end of a spring 35. A latch member 36 is associated with the base 29 and is pivotally mounted thereon by means of a pin 31, said pin extending through the lower end of said member. The spring has its opposite end connected with the latch member, near its mid portion, by means of a pin 38. It will be seen that the spring 35 urges the latch member forwardly toward the adjusting screw 33. At its upper end, the latch member is formed with an arcuate latch face 39 which is shaped to receive a portion of one of the trunnions l8.

As seen in Figure 3 of the drawings, the rails of the track I! are each provided with depending pivoted dogs 40. The dogs are limited against forward movement by pins 4| which are extended into the rails. It should be understood that the dogs 40 will extend laterally so as to be in the same longitudinal path with the upper end of the latch members 36.

In order to provide means for inking the ink roll l4, when necessary, I employ an ink trough 42 which is of U-shaped formation. The ink trough is provided with end walls 43 and A l which are formed with bearing slots 45. The bearing slots receive the shaft l5 of the ink roll H for permitting said ink roll to have a portion thereof immersed in ink carried in the trough. In order to ink the ink roll, it is only necessary to rotate said roll in the trough until said ink roll is inked throughout its circumference. The operation of my improved inking device will now be described in more detail. After the work I I has been placed on the worksupporting table 3 of the frame 2, the striking head 9 is shifted rearwardly to the position shown in Figure 3 of the drawings. In this position, the dogs 40 will engage the upper ends of the latch members 38 for releasing said latch members from engagement with the trunnions l8. When this takes place, the springs 25 will urge the stems 2| upwardly, with the result that the ink roll will be urged upwardly into engagement with the forward end of the die holder 10. As the striking head is swung upwardly and forwardly, as shown in Figure 2, the plungers will retain the ink roll in engagement with the face of the die on the die holder, for effectively inking said die. As the striking head is further moved forwardly, it will begin to swing downwardly. As the striking head moves downwardly and forwardly, the ink roll M, with the plunger 20, will be forced downwardly against the tension of the springs 25. It will, of course, be understood that the rollers 16 will roll along the tracks l'l while the ink roll is inking the face of the die. The tracks H are of sufficient length so that, when the striking head swings clear from above the platform 4, the tracks will have urged the rollers downwardly to such a position that the latch members 36 will engage the trunnions 18 for retaining the ink roll in inoperative position. In other words, as heretofore mentioned, the ink roll will be in the position shown in Figure 1 at all times, except when actually inking the face of the die. Movement of the ink roll into and out of operative positions is entirely automatic and is controlled by themovement of the striking head and the die holder. It should be understood that, if desired, but one of the latches 29 may be employed. The use of two of said latches will assure uniform holding action for the opposite ends of the ink roll.-

As the matter of inking the ink roll H has been described hereinbefore, it is not thought necessary to describe it further. It is accordingly believed that the construction and operation of my improved inking device will be thoroughly understood from the foregoing description.

Having thus described the invention, what is claimed as new is:

l. A device of the class described including, in combination with a marking machine having a striking head, a frame, means swingingly connecting the striking head with the frame, a die holder having tracks, and a die on the die holder, an ink roll, plungers operatively connecting the ink roll with the frame, means for resiliently mounting the plungers, a latch for holding the ink roll in a retracted position, and a dog on the track of the die holder, said dog being engageable with the latch upon rearward swinging movement of the striking head for releasing the ink roll whereby said ink roll will be urged to engage the face of the die during forward swinging movement of the striking head, further forward movement of said striking head shifting said ink roll to retracted position and in engagement with the latch.

2. In an inking device, in combination with a frame, a striking head, means operatively connecting the striking head with the frame, a die holder on the striking head and having a track and a dog on the track, an ink roll having a shaft, rollers on the shaft, said rollers being engageable with the track, means resiliently mounting the ink roll on the frame and normally urging the ink roll toward an extended position above the frame, and a latch carried by the frame and having a latch member engageable with the ink roll for retaining the ink roll in a retracted position near the frame, said striking head being shiftable for engaging the dog with the latch member for freeing the ink roll whereby said roll will be urged to engage the die on the die holder for inking said die holder during forward movement of the striking head, further forward movement of said striking head shifting said ink roll downwardly for engagement with the latch member as the striking head is moved clear of the ink roll.

3. In combination with a marking machine having a striking head, a frame, means swingingly connecting the striking head with the frame, a die holder on the striking head, and a die on the die holder, said striking head being movable from an inoperative position above the frame forwardly to a stamping position and rearwardly to a position for inking, an ink roll on the frame, means for resiliently mounting the ink roll, means for retaining the ink roll in lowered retracted position, means on the die holder and engageable with said last mentioned means for releasing the ink roll whereby said ink roll will engage the face of the die as said striking head is moved forwardly toward a stamping position, and means for urging said third mentioned means into engagement with the roll for relatching the roll after the striking head has moved past said roll toward operative position.

4. In combination with a marking machine having a striking head, a frame, means swingingly connecting the striking head with the frame, a die holder having tracks, and a die on the die holder, said striking head being movable from an inoperative position above the frame to a retracted position for inking and also being movable to a stamping position, an ink roll, means movably connecting the ink roll with the frame, means for normally urging the ink roll upwardly from the frame, means for holding the ink roll in a lowered retracted position against the tension of said last mentioned means, means on the track of the die holder and engageable with said last mentioned means upon rearward swinging movement of the striking head for releasing the ink roll whereby said ink roll will be urged to engage the face of the die during forward swinging movement of the striking head, and means urging the third mentioned means to relatching position upon further forward movement of the striking head for relatching the roll in lowered retracted position.

RUPERT L. GREENLEAF.

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