US1296690A

US1296690A - Blank-feeding mechanism.

Info

Publication number: US1296690A
Application number: US20313617A
Authority: US
Inventors: Abraham Novick
Original assignee: F L SCHMIDT Co
Current assignee: F L SCHMIDT Co
Priority date: 1917-11-21
Filing date: 1917-11-21
Publication date: 1919-03-11
Anticipated expiration: 1936-03-11

Description

. A. Novica,- y stmk 'moms mscnmusls.` APPL-ICMIQM FILED KQSLZI. 1915..4

' v Patented Mar. 11, 191%.

2 snEsTs-sHEEr 2. l

ofNew York, borough ofManhattan,

ABRAHAM Novica, orNEw Yoan, N. Y., AssIeNoa 'ro r. L. scnmn'r comm, or

NEW Yonx, N.

Y., -A CRPORATION y0l? NEW YGBK.

BLANK-FEEDING MECHANISM.

.pplicationled November 2 To all whom 'i may concern Be it knownthat I, ABRAHAM Novicis, a citizen of the United States, and aI resident in the county of New York and State of New A`York, have invented certain new and useful Improvements 1n Blank A -Feeding Mechanisms, of which thefollowing is a specification. This invention relates to blank/feeding mechanisms and has for its object to provide means of the'c'lass specified characterized by simplicity and accuracy of operation at high speed. p

To these ends my improvements comprise features illustrated in their preferred embodiment in the drawings accompanying this lspecification wherein i the leading ends of said Figure Irisa diagrammatic side elevation of so much of a blank feeding mechanism.

to, clearly illustrate my improyements. Fig. 2 is a view similar to that of Fig. 1 and showing the parts in different relative positions.

Fig. 3 is a similar side elevation to those of Figs. 1 and 2, illustrating the lcams and gears of the mechanism. Fig. ai. is a plan view ofone form of blank which the machine is adapted to feed. All of the figures of the drawings are to one scale.

A pile of blanks 2 ma be arranged .with lanks conveniently disposed relatively to the parts of the meclianism designed t0 operate upon those blanks. Said pile may be guided by rods 3 and 4; in engagement with rentrant corners on said blanks, Fig. 4, and may be supported by table 38. Also, preferably, said blanks are elevated at their rearward ends, so that gravity assists in keeping them in engagement with said rods 3 and 4. Said table38 may 'be elevated from time to time, through the instrumentality of link 14, by some convenient known means, not shown, to maintain the top of the pile at a convenient position relatively to the lower position of picker 6. Said picker'may be of some accepted character, which for convenience. is here illustrated as a pneumatic picker. Also said picker is carried by oscillating frame.7 turning on the fixed axis of shaft 8 and air may be exhausted therefrom at suitable times through pipe 9 vby some known means, not shown.

Mounted on rotatable shaft 10 having a of its periphery 12 'for coaction with roll 11.

vit as shown.

l Specification of Letters Patent. Patqlgnjed Mar. 11, 1919.

i, 1917. serial No. 203,136.

fixed axis a short distance above the leading ends of the blanks in pile 2, is large, upper, segmental feed roll 11, the operative portion extending about half the circumference thereof and the remaining portion 13 being of less radius. Oscillatable shaft 8, to which frame 7 is fixed, also has fixed thereto bell-crank 18, arm 19 of which .is pivotally connected at 2O to bar 21, earrying roll 22 for engagement with cam 23, turning about the f ixed axis of shaft 24. Saidarm 19 is slotted at 39, so that pivot 20 of bar 21 may be shifted toward and from shaft 8 and the stroke of bell-crank 18 and picker thereby adjusted. Said rol-l may be urged to engagement with. said cam by spring 36. vBy this means said picker 6 may be'oscillated from thel position of Fig. 1, in engagement .with upper blank 5 of pile 2, to the position of Fig. 2, for lifting the lead ing end -ofthe said blankv intoA engageable position adjacent to or against the under Side of feed roll 11. To the other armof bell-crank 18 link 14 is pivotallyA connected.

On shaft 15, having a fixed axis below feedl roll 11 and alsoy below the level of the top of the pile of blanks, is oscillatably mounted arm 16, carrying on its free upper end small lower feed roll 17. Said arm 16 may be oscillated by means of roll 25 in engagement with cam 26 fixed to shaft 24, to which cam 23 also is fixed. Said roll 25 is carried by arm 27 fixed to shaft 15, to which arm 16 also is fixed. Said roll 25 may be urged to` engagement .with said cam 26 by spring 37, one end of which is fixed to arm 16 other end to a fixed art of the machine. Small lower ,feedroll 1R( is mounted for bod-V ily movement from its idleposition of Fig. 1 at the left of the pile of blanks, to its operativeposition over the leading end of the pile of blanks and under the leading end of lifted upper blank 5 of that pile, Fig. 2,

Upper roll 1l may be in the form of two disks, only yone of which is shown, and picker 6 may swing up between said disks; or roll 11 vmay have a relatively narrow face and picker 6 may swing upwardly close beside Referring now particularly to Fig. 3, the

gearing for my improved mechanism is illustrated -diagrammatically by' dot and dash pitch lines, wherein gear 28 is fixed to shaft 24 and which shaft may be considered the and the y driving shaft. Said gear is twice the size of and meshes with and drives gear 29 fixed to shaft 10, whereby roll 11, also fixed to said shaft, .is caused to make two revolutions for each revolution of shaft 24 and the cams thereon. Thus roll 11 makes one idle revolution between each two operative revolutions in coacption with roll 17. Also fixed to shaft .10 is gear 30, two and one half times the size of gear 31, with which it meshes and which it drives. Said gear 31 turns freely on oscillatable shaft 15.

Coaxial with and fixed to gear 31 is small gear 32.- Said gear 32 meshes with intermediate gear 33, mounted on arm 16, which in turn meshes with gear 34, fixed to shaft 35, to which feed roll 17 is fixed.

Gears

32, 33 and 34 are-of equal size. Roll 11, in its operative segment, 1s two and one half times the diameter of roll 17, so that, by means of .the gearing just described said rolls will be driven in opposite directions at the same surface s eed, roll 11 in clockwise direction and roll 1 in anti-clockwise direction.

The operation of my improved blank feeding mechanism is as follows: A pile of blanks being" so positioned, against rods 3' and 4', that upper blank 5 thereof is inen- 'gaging relation with picker 6 when that icker is in itslower position, Fig. 1, and the eading end ofhigh portion 12 of upper feed l roll 11 being about three-eighths of a revolution from engaging position with lower feedroll 17, and saidy lower feed roll being in its retracted position, cam roll 22, of bar 21., is engaged by the rising portion of cam 23, whereby bell-crank 18 is oscillated in clockwise direction and picker 6,'from which the air .is at this time exhausted, is swung upwardly, carrying top blank 5 tl'lerewith, thus "delivering the leading end of that blank against the under side of said roll 11, just as the leading end of the high portion 12 thereof rotates to a position contiguous to said leading -end of said blank. Shortly after picker 6 has started on its upward movement, cam roll 25 is engaged by the rising portion of cam 26 and lower `feed roll 17 is swung toward the right, Fig. 2, and passes under the lifted top blank 5, over the remaining blanks on the pile and into coaction with upper feed roll 11 just as the leading-end of the high portion 12 of that roll engages blank 5.` rlhe leading end of Jsaid blank is thereby gripped between said .Y feed rolls and air is supplied to picker 6,

tions on said blank. Said delivery to other mechanism should be accomplished before, or not later than, the arrival of the following" end of high portion 12 of roll 11 opposite roll 17, as at that time said rolls complete their period of coaction in control of said blank.

Coincidently with or directly after said rolls complete their period' of coaction, cam roll 25 will be engaged lby the succeeding lower portion of cam 26 and lower feed roll 17 will be swung to the left, off and away from the pile of blanks, from the position ,of Fig. 2 to that of Fig. 1. At about the same time cam roll 22 will be engaged by the falling portion of cam 23, and bar 21 will swing picker 6 downwardly, just as lower feed roll 17 recedes to permit it to` pass therebehind. Said picker will then pass again into engagement with the uppermost blank on the pile and the recited operation will be repeated.

I claim:

1. A. blank feeding mechanism including 1n combinatlon, means for supporting and guiding a pile of blanks, a pair of feed rolls one of which is mounted on a fixed axis and is intermittently operable and the other of which is mounted on a movable axis, means for moving said movable axis roll into coacting relation with said fixed axis roll, during the operable period of said .fixed axis roll. means for lifting the leading. end of the upper blank info engageable relation with said fixed axis roll while said movable axis roll is ont of enacting relation with said fixed axis` roll. and means for rotating said feed rolls in opposite directions, respectively. at the same periliheral speed.

2. A blank feeding mechanism including in combination, means for supporting and guiding a pile of blanks, an intermittently operable rupper feed roll, means for lifting the leading end of the upper blank into engageable relation with said upper feed roll, a lower feed roll mounted for movement' into and outof the path of the leading end of said blank from the pile to its lifted position, said upper feed roll being adapted for coaetion with said lower feed roll when that Y lower roll is moved into said path` of the leading end of the blank, meansfor moving said4 lower feed roll into coasting relation with said upper'feed roll after said blank has been lifted, and means for rotating said feed rollsV in opposite directions, respectively, at the same peripheral speed.

3. A blank feeding mechanism including in eon'lbination, means for Support-ing and guiding a. pile of blanks, an intermittently operable upper feed roll, an oscillating picker for lifting the leading end of the upper blank into engageable relation with said upper feed roll, a4 lower feed roll mounted for movement into and out of the path of the leadin l end ofsaid blank from the pile to its lift' position, means for moving said lower feed roll into coasting relation with said upper feed roll after sald blank has been lifted, said upper feed roll bein'g adapted for coaction with said lower feed roll when that lower roll is moved into said path of the leading end of the blank, and means for rotating said feed rolls in oppositedirections, respectively, at `the same peripheral speed.

' 4. A blank feeding mechanism including in combination, means for supporting and guiding a pile of blanks, an upper feed roll means for lifting the leading end of the upper blank into engageable relation with said upper feed roll, a lower feed roll mounted for movement into and out of the path of the leading end of said blank from .the pile to its lifted position, means for movin combination, means for supporting and guiding a pile of blanks, an intermittently operable upper feed roll, a picker for lifting the leading end of the upper blank into engageable relation with said upper feed roll, means for adjusting the stroke of said picker, a lower feed roll mounted for movement into and out of the path o f the leading end of said blank from the pile to its lifted position, said upper feed roll being adapted for coaction with said lower feed roll when that lower roll is movedinto said ath of the leading end of the blank, means or moving lsaid lower feed roll into coacting relation with said upper feed roll after said blank has been lifted, and means for rotating said. feed rolls in opposite directions, repectively at the same peripheral speed.

6. A blank feeding mechanism including in combination, means for supporting and,

- guiding a pile of blanks, a pair of feed rolls mental periphery adapted for'coactipn with the other roll, means for moving said mov able axis roll into and out of coacting relation with the other roll, and means for rov tating said feed rolls in opposite directions, respectively, at the same peripheral speed.

7. A blank feeding mechanism 'including in combination, means for supporting and guiding a pile of blanks, an intermittently operable upper feed roll, means vrfor lifting the leading end of the upperl blank into engageable relation with said upper feed roll, a lower feed roll carried on the free end of an oscillatable arm for swinging said roll into and out of the path ofthe leading end of said blank from the pile to its lifted position, said upper feed roll bping 'adapted for coaction with said lowerl roll when that lower roll is swung -into said path of the leading end of the blank, means for oscillating said arm for swinging said lower roll into coaction with said upper roll, and means for rotating said feed rolls at the same peripheral speed, but in opposite directions,

respectively, during their coaction.

8. A blank feeding mechanism including in combination, means for supporting and guiding a pile of blanks, an upper intermittently acting feed roll, means for lifting the leadingend of the upper blank into engageable relation with said upper' roll, a lower feed roll mounted vfor movementinto and out of the path of the leading end of 'said blank from the pile to its lifted position, Ameans for moving said lower roll into coacting relationwith said upper roll after` said blank has been lifted, means for rotating said feedrolls at the same peripheral speed but in opposite directions, respectively, during their coaction, and means for timing the movement of said lower roll with the intermittent action of said upper roll.

9. A blank feeding mechanism including in combination, means for supporting and guiding a pile of blanks, a pair of f eed rolls, one of which is intermittently operable and. the other of which is movable into coaeting relation with said intermittently operable roll during its period of operability, means for lifting the leading end of the upper blank into engageable relation with said intermittently operable roll when the other roll is out of coacting relation therewith, and means for rotating said feed rolls in opposite directions, respectively, at the same peripheral speed during their period of coaction.

Signed at New York, in the county of New York-and State of New York, this 20th day of November, 1917.

ABRAHAM NOVICK.