US1258744A

US1258744A - Feeding-machine.

Info

Publication number: US1258744A
Application number: US12880516A
Authority: US
Inventors: Carl E Christophel
Original assignee: Dexter Folder Co
Current assignee: Dexter Folder Co
Priority date: 1916-10-31
Filing date: 1916-10-31
Publication date: 1918-03-12
Anticipated expiration: 1935-03-12

Description

c. E.'cHrnsTQr-HLl FEEn'mG MACHINE. APPLIGATIOI( FILED OCT- 3h ISIS.

Patented Mar. 12, 1918.

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FIEEDING MACHINE.

APPLICATION FILED 0CT3I|19I6 5 SHEETS-SHET 2.

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FEED'ING MACHINE.

APPLCATION FILED OCT-31| IBIS.

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'FEEDING MACHINE.

. APPLICATION FILED 0CT.3|. 1916. 1,258,744.

Patented Mar 12, 1918 5 SHEETS-SHEET 4 I @umh/coi" 4 4 130cm Il. W MW 4 4 9 .J

8 4 A i W im 7 M c. E. CHmsToPHeL. FEEDING MACHINE* APPLICATION FlLiD 0CT.3. H316.

Patente Mur. 12, 1918.

.'JA'RL E. CHRISTOPHEL, OF PEARL RIVER, NEW COMPANY, OF PEARL RIVER, NEW YORK,

YORK, ASSIGNOR T0 DEXTER FOLDER CORPORATION 0F NEW YORK.

FEEDING-MACHINE.

Specification of Letters Patent.

Patented Mar. 12, 1918.

Application led October 31, `1916. Serial No. 128,805.

To all whom t may concern:

Be it known that I, CARI. E. CHRISTOPHEL, a subject of the German Emperor, residing at Pearl River, county of Rockland, and State of New York, have invented certain new and useful Improvements in Feeding- Machincs, of which the following is a speciication.

rlhis invention relates to sheet-feeding machines and more especially to that class of feeding 'machines which are peculiarly, serviceable for feedinor sheets of cardboard or the like. The primary object of this inve ition is to provide an improved device for separatingpsheets of cardboard from a pile as they are being fed one b-y one from the pile. One of the objects of the present invention is to provide an improved construction in whichthe several coperating parts are more closely related to each other. lAnother object is to provide an improved sheet-separating mechanism that will be simple, durable and eflicient.

Other and further objects will appear in the specification and be pointed out in the appended claims, reference being had to the accompanying drawings which exemplify my invention in its preferred embodiment. In the drawings,

Figure 1 is a side elevation of sheet-separating mechanism, constructed .in accordance with the principles of the present invention.; parts being broken away and parts shown in section;

Fig. 2 is a similar' side elevation showing the parts in changed positions.

Fig. 3 is a similar side elevation showing a further stage of the operation;

Fig. l is a rear elevation of the mechau nisni correspondingto Fig; 1, the fixed support being shown inscction;

Fig. 5 is a top plan view of the same;

j Fig. 6 is a top plan view of the suction cylinder, on an enlarged scale, parts being shown in section; and

Fig. 7 is a fragmentary rear elevation of the foot or lower end of the sliding frame,

parts being broken away and parts shown 1n section.

Referrlnff more articularl t0 the draware connected collars kment of a sleeve 24 which is pressed ings, the vembodiment or my invention shown therein, includes a fixed bracket 'or support l to which a guide is adjustably connected by means of a. stud or bolt 2. Said guide comprises a block 3 provided with a rearwardly projecting lug 4 which pivots onstud or bolt 2. Depending from the block 3 are spaced guide rods 5. to which 6 which constitute stops. for limiting the downward movement of a slide or frame which. is rcciprocably mounted on the rods 5 and comprises a block 7 which carries a forwardly presentedk bracket S provided with a laterally project ing depending foot 9 and an upwardly vforwardly projecting bracket Iarm 10. As

shown best in Figs. 1 and 7, the 'foot 9 is provided with a pin or extension 11 which is adapted to rest on a pile of sheets when the slide or frame is lowered. Foi this purpose, the bottom surface of said foot comprises a facet 12 which in lowered position lies flat on the pile and a facet 1.3 which 1s angularly disposed thereto and against `which a portion of the top sheet is drawn in the manner to be hereinafter pointed out. `It will appear from Figs. 1 and 7 that foot 9 is provided with an annular slot for circular-ly 'formed plate 14 which projects laterally from the shank 15 of a cradle which includes a strap or band 16 for mounting a; cylinder 17 provided at its lower end with. a sucker 18. A screw 19 secures said strap or band around the cylinder. Secured to the top wall of foot 9, is the curved plate 2O of a bracket arm 21 which engages the lateral face of the shank 1.5 and prevents the lateral displacement of the cylinder-'carrying cradle. A piston (not shown on the drawings) is provided with a piston rod 22 which carries aV rigid abutment or collar 23 which limits the moveupon from above by a spring 25 which surrounds the `rod 22 and is confined between the sleeve 24 and an abutment 26 which is adjustably connected to the rod 22. The sleeve 24 is pivotally connected at 27 with one end of a rod or lever 28 which has its upper end pivotally connected at 29 with the swinging journaling a rearwardly is permitted by the cam` 40,

. rojects laterally from a of the pile.

end of. a link 30 which is pivoted at 31 upon the bracket 10. A fixed stop or pin 32 limits the downward movement of guide link 30. Said rod or lever is provided with a slot within which slides a pin 34 carried by a crank arm 35 which is lieyed to a cam shaft 36. Referring now to Figs. 4 and 5, the cam shaft 36 has keyed thereto a bevel gear 37 which meshes with a bevel4 gear B8 l-ke yed to a shaft 39 which receives its power throu rh universal connections which maintain tie power-transmission without interfering with the reciprocating movements of the slide or frame 8. Keyed to the cam shaft 36`is a cam 40 over which runs a cam roller 41 journaled in the outer end of a cam lever 42 which oscillates about a stud 43 but' has a portion thereof inclined forwai-'diy and downwardly to adapt it to hook under and to support the edge or corner of a sheet which has been lifted by an. upward movement of' the sucker 18. Projecting from the slide or frame 8 is an armor bracket 45 which supports a blow pipe or nozzle 46 which may receive compressed air from any suitable source.- In order tonimpart a `lifting movement to the clamping foot whenever such ay movement aspring 47 is connected at one end to a pln 48 carried by the cam lever 42, the other end of said spring being connected to a pin 49 which forwardly extending arm or bracket 50. The operation of my improved mechanism. may now be briefly explained as follows:

According to Fig. 1 of the drawings, cam 4() has justwpermitted the clamping to move upwardly, thus permitting the slide or frame 8 to fall on the guide rods 5 until the foot 11 rests upon the pile of sheets.

Spring 47 has also acted to elevate clamping foot 44. By means of the angular movement of slotted cam bar 28, the cylinder 17 has been moved into an upriht" position with the sucker 18 pressed rclose y to the top sheet of the pile, the piston being depressed in cylinder 17'-,l The cam shaft 36 rotates in an anti-clockwise direction,'tl'n1s movin the piston rupwardly in the cylinder 17 an causing the sucker 1.8 to grip the top sheet As the upward movement of the lpiston goes on, the cylinderris tilted to the left on the foot l1 asa pivot until it assumes the position shdwn in Figs. 2 and 3. lam 40 now begins toact upon cam lever 42, thus forcing the clamping foot 44 ydown on to the pile and eventually causing. said slide..

orV frame 8 to be move(v upwar ly ontY ide rods 5 andliftini the foot 11 fro t e pile, thus releasing t e top sheet as soon as the piston begins to move downwardly to break the action of sucker 18. The tilting movement of cylinder 17 haslserved to p foot 44 ered f a sheet-engaging instrumentality recipro-` cable toward and away `from a pile of sheets, a foot clamp movably lconnected to said sheet-engaging 1nstrumentality,A and means lfor moving said. :foot clamp down'on to saiffiY pile, the movement of said foot clamp beting adapted to reciprocate said sheet-engaging instrumentality.

2; 'In a sheet-feeding machine, a reciproc'able frame, a sheet-gripping instrumental.-

ity movable on said frame, means for movin g said' l frame into and out of engagement wlth said pile, and :means for moving said sheet-gripping instrumentality on. said Aframe to raise a portion of the top sheet,

said means for moving the frame inclieiding a clamp foot `movably mounted on saidv frame and adapted by its engagement with the pile to lift said `frame therefrom.

. 3. In a machine of the character described,

a reciprocable frame, means including a `clamp-ing foot for raising and lowering; lsaid frame, sheet-gripping means movablj,r mounted on said frame, and means for op-` erating said sheet-gripping means to adapt it to grip a sheet near one extreme "of :its movement relatively to said frame and to release said sheet near the other extreme of its movement.

4. In a machine of the character described, a reciprocable frame, means including a clamping foot for raising and lowering` said frame, sheet-gripping means rno'vablv mounted on said frame, and means for operating said sheet-gripping means to adapt it to grip `a sheet near onefextreme of its movement relatively' to said ,frame and to release said sheet near the other extreme of .its movement, said sheet-gripping means being oscillatableabout a portion of said reciprocable frame which rests upon the top sheet of a pile when said frame is in lowosition.

5. n a machine of the character described, 'a reciprocable frame, means including a clamping foot for raislng and lowering said frame, sheetripping means movably mounted on said rame, and means for operatingsaid sheet-gripping 'means to adapt fitto grip a sheet near one extreme el? its movement relatively to said frame and 'to release said sheet near the other extreme of its movement, said sheet-gripping means` 1ncllldng a cylinder pivotally connected` to lit said frame, a sucker carried b v said cylindei'. a piston niovalile in said c vlinder, and means for movin;r said piston in `said cylinder to sucw'i-ssivcllv make and break the snct-ion therein.

6. In a machine of the character described, a guide, a slide reciprocalily mounted on said `guide and provided with n foot adapted to rest upon a pile of sheets, ai sheetgripping device oseillatalily mounted on said slide, land means for oscillating said sheet-gripping device and operating said device to alternately grip and release a sheet, said sheet-gripping device comprising a suction. cylinder pivotally mounted on said slidel and a piston reciprocable in said cylinder and connected up with said oscillating means.

7. 1n n machine of the character-described, a guide, a slide reciprocably mounted on -said guide and provided with afoot adaptlvd to rest upon n iile cfvsheets, a sheet-grip- 1 ping Ilevicc oscilatablymoiinted on said iniinte'd on 4-said slideg'fagiiston recprocable Iin'said cylinder,'afrtary shaft journalediii.. jsaid slide, and meansconnecting said shaft -land -said piston for-.reciprocating said pis- .sli de, and means foi-'oscillating said'sheet- 2.5..

'to alteri'iately grip-and .releasel a shee-gllsaid 'sheet-gripping device'ncomprising- 'a suction 'gripping device sind operating said device funds-ri pivoniiymounted on Isaid-laide raeaesc reciprocable `slide "i a ton: and oscillating said cylinder.

In a Adevice of thecharacter described,Y

a reciprocablc slide, ii

cylinder pivotally mounted on said slide, a. piston. reciprocable in said cylinder, a rotary shaft journaled in' said slide, and means connecting'said shaft and 'said piston for ,reciprocating said piston and oscillating said cylinder, said connecting means including a link connected to said piston' and a crank arin keyed to said shaft and having a pin and slot connectionl with said link.

10. In a. machine of the character described,a,reciprccable slide, a suction cyl-i inde'r pvotallymounted on said slide, a piston recipiocable in said cylinder, said piston being provided with n piston rod, a shaft journaled in saidslide, aA crank arzn keyed t `said Shaft, n slotted link oscillatebly connected to said piston rod and slidably connected to said cranlc. :ii-ni, and means adapted to liv operated by said shaft for periodicallyr raising said slide.

11. In a machine o1" the character dcscribed. a reciprocable Slide, a suction cylinder pivotally mounted on said slide, a' piston reciprocable in Said cylinder, Said piston being provided with a piston rod, a shaft i(.iurnaled `in said slide, a crank arm keyed in said shaft, a slotted link oscillatably connected to said piston rod-and slidnbly connected to Said crank arm. :ind means adapted to lie operated liv said .-luift for periodically raising,r said slide. said periodicalli` operated means including a lever pvotally mounted on said slide and provided with a clamping foot movablel into and out of engagement with a pile of sheets.

l2. In a niacliine of the character described, a reciprocable slide, a suction cylinder pivotally mounted on said slide, a piston reciprocable in said cylinder, said piston being provided with a piston rod, a shaft journaled in said slide, a crank arm keyed to said shaft', a slotted link oscillatably connected to Said piston rod and slidably connected to said crank arm, and means adapted to be operated by Said sliftior periodically raising 'said slide, said periodically Aoperated meansf includin .ai 'lever pivot-ally mounted on-said slide, an` i'prvided with a clamping. foot-movable 'into and out of en gerneiit: `iigitghV af4 p'ile'f'o'f' sheets, said clamping foot havin fa hooked? lower end 'ada t- Vnected todsaid piston'rod and Slidably connected tosaid crank arm, and means adapted to be operated by Said shaft for periodically raising'said slide, and a'blast p1 e nozzle mounted on said slide and s uita ly arranged to introduce a blanket of air under the edge ofa sheet which has been raised by said suction cylinder. f

1.4. In a' machine of the character described, a 'reciprocable slide provided with a depending foot adapting said slide to rest on a pile of sheets, a suction cylinder oscillatable on said foot, means for evaciiating said suction cylinder toadapt it to griptbe top sheet o n Said pile, and means for simultaneously oscillating-said suction cylinder to lift aportion of the top=sl1eet. Y,

15. In a machine o f the character described, a reciprocable slide rovded with a depending foot adapting said slide to rest on a pile of sheets, a snc ion cylinder oscillatable on said foot, means for evacuating said suction c vlinder to :idapt it to grip the top sheet on said pile, and means for siinultnneonsly oscillating said suction cylinder to lift a portion of the to sheet, said slide being provided with a clamping foot peon, and ada ted to rest on a pileof sheets, producing means oscillatable on saidA suctionslide into position to the top sheet of said pile and out of sai position to lift 10 a portion of sa-ld sheet, and means movable y .on said slide into position beneath the lifted portion of said top sheet and -adapted to lift seid slide from theV pile.

CARL OHRISTPHEL.