US1691891A - Sheet-handling mechanism - Google Patents

Description

Nov. 13, 1928.

' c. A. MEISEL smam HANDLING MECHANISM Filed March 1927 2 Sheets-Sheet 1 In verzZa 7'. LizarZes flMe/ise Z, a @fifiw %?r a.

c. A. MEISEL SHEET HANDLING MECHANISM Filed March 1927 2 Sheets-Sheet 2 Nov. 13, 1928.

Patented Nov, 13, 19289 "UFAWilli???13. CHUSETTS.

renon tro MEESEL rr rsss raunc-onronarron o -mess SHEET-HANDLING IVIE CYAIJIQAM.

' v Application filed March 2, 192?. semi no. 1725204.

This invention relates to sheet handling mechanismanrh While various features here in disclosed are capable or more extenced application, I have herein disclosed as a specific example or" my invention a mechanism adapted to cut sheets from a Web, to accumulate a desired number them in superposed relation and to deliver this number to some suitable cooperating mechanism. The specific embodin'ient or my invention disclosed Will be Well understood by reference to the followingdescription taken in connection with the accompanying drawings wherein: Y

Fig. 1 is a simplified and more or less schematic View showing in side elevations series of cylinders by means of which a pile of sheets is accumulated;

l is an elevation ot a cam co troll the operation of mechanism associ ted with the cylinder which appears 1 in diately above 1 and shown as it llii bid from its normal position nearer the reader in F 1 anddisposed doW \rardlv to the position shown. in other irords, 1S simplified by the omission or the parts shown in Fig. l and consequently the parts lying behind them are more clearly disclosed;

Fig. 2 is a radial section through-the cut-- ting knife cylinder disclosing the knife mechanism hi 3 is a radial section through the cutting die cylinder disclosing the pin mechanism carried thereby;

i is asect-i'on through accumulatin'g cylinder disclosing the pin mechanism thereof and the strippers; and

5 is a detailed section on the line 5 5 otl ig. 4t.

Referring to Fig. 1 Web of paper w such as a printed Web coining from a printing press is led over a guide ro l 7 and around a cutting die cylinder 9 with which cooperates a cutting hnite cylinder 11 carrying the radially projectingkni'le 1 9 On each revolution otthe' cylinder 11 the Web 0t paper overlying the cylinder-Q is severed and by suitable means on the cylinder 9,, such as the pin mechanism hereinafter to be vde; scribed, the edge of the paper at the rear or the cut is engaged with the cylinder 9 and carried around thereby in a counterclockwise direction to a substantially diametrical cylinder 3 circumference of the oi the drawings, a

point at Which' is located the accumulating l The cylinder 9 is twicethe circumference of the cylinder 11 ELIlClWl'lGIl this edge of the paper reaches the position illustrated in 1 oorrespondingto half past one on a clock dial the blade 13 operates again, severing ironi the Web a sheet or paper substantially halt the z rollil) and the leading edge of this sheet is then delivered by the cylinder 9 to so ehle mechanism, herein shown as pins, on the cylinder 'lhis operation' takes place at each half revolution of the cylinder 9 and series 0'15 sheets is thus deliyeredto accumulating cylinder 15 in,su' ierposed relation until after a desired nu1n- 'er of cycles mechanism is set in action to re lease the accumulated pile of sheets from the cylinderlfiand deliver them to suitable carfry-ing off mechanism, not shown.

In Fig. 2 I have shown the construction mechanism carried by cylint i ll be seen that th lower portion otttheflinite 13 is held, between the opivhose length equa s posed faces of two carrier bar-s1 secin d t: ether by means otscr-ews 19 and set in su ble longitudinal reces' in the cylii'ider 11. Along the bottom of, these bars the op 12o faces are recessed to PlOi hlQlilPPGCl +Qies to receive set screws 23 on which rests the bottom of the knifev blade adjustment ot-these screws providing for radial 'adjustment of the knife. ()n either side of the. kn te ad acent the periiniery o'f theoyhnder fl l in slots 31 in the blocks 25 retain them in position inthefrec'esses provided therefor in thebars 111 As is customaryin 'suchconstructions, the bars 1? (see Fig.1) are secured by holts 33 at the ends of the 'cylinder,' As

, the cylinder 11 rolls in contact with cylinder '9, the block's engagethe web, of paperand pressed back clamping the Web otpaper and exposing the knife 13' which severe the Web transversely. v

Referring, now to Fig. 3,111 the embodiof; the cylinment of the invention shown the knife blade 13, as distinguished from priorconstructions, operates against a die surface carried by cylinder 9 of relatively soft rubber and which may be provided with a grooi e 37 which receives the edge of the knife. As the knife 13 projects beyond the plane of tangency of the two rolls, it is withdrawn from the cooperating die surface with a twisting motion and in the present instance the yielding character of the rubber and of the wallsot the groove 35 permits this disengagement of the knife edge. There is no necessity for a clearance as the knife rolls and the use of mechanically moving parts is done away withr On groove in cylinder 9. Each pin 39 conveniently is a sharpened piece of wire and is "length of the pin at the inner end.

mounted in a screw 47 tapped intothe end of a pin carrier 49 slidably mounted as shown in a counterbored hole in a bar 51 set in the radial groove in the cylinder, the pin carrier 49 having a collar 53 with which cooperates, a spring 55 normally tending to withdraw the pin tromthe position shown in Fig. 3. Suitable spacers 57 .may be utilized between'the inner ends of the pin carriers 49 where they project inwardly beyond the inner surface of the bar 51; The screw 47 serves as a chuckto hold the pin tightly but permitsthe latter to be readily adjustedas the outer end wears,

conveniently when the screw'is withdrawn;

The carrier 49, as shown in the dotted lines of Fig; 3, may be bored to receive the surplus To thrus t the pins outwardly to the position shown in Fig. 3 against the force of thesprings the inner ends of the carriers 49 may rest on a bar 59, the ends of whlch are secured to slides 61 which move between guides 63 at each end of the cylinder. A cam roll 65 is carried by a slide 61 and by means of a suitable' cam presently to be described the bar .59 may be reci'procated positively to vforce the pin carriers outwardly against the force of springs 55 to the position shown in Fig. 3 or to retract springs.

To effect this action (see Fig; 1) cam roll 65 may runin the cam groove 67 of a stationary cam organized at the end of the cylinder. In the position shown in Fig. 1, the knife 13 has just severed the web, the pins 39 are just at the rear of the point of tangency' of the cyling longitudinally bar 59 to permit the pin carriers to be retracted inwardly by the action of the inwardlyof the circumference of the cylinder.

At this point the cam roll 65 moves to the part of the cam track 67 which is of greater radius and the pin is projected to engage the paper and remains in that position until it and es at the diametrical point when the cam roll moves inward, releasingthe pins from the paper, at which time the paper is deliver-ed to the cylinder 15.

The parts shown in Fig. 3 are, as indicated in Fig. 1, duplicated'at diam'etrical points 01 the cylinder 9 so that on each half revolution of the cylinder 9 a set of pins isengagingthe web or paper at by knife 13 and another set of pins is delivering a severed sheet to a cooperating mechanism on the accumulating roll 15. The successive sheets are delivered by the cutting die cylinder 9 from its pins 39 to pins 69 on accumulating cylinder 15 and this action is repeated until a desired number of sheets have been superposed upon one another on the cylinder 15, let us say, for convenience, ten. i

Referring now to Fig. 4', the pins 69 of the accumulating cylinder 15 may be secured by screws 71 in pin-carrying rods 73 slidingin the block 7 5 mounted lengthwise of the cyl inder. Since the pins 69 mustv pierce ;ten sheets andmust be withdrawn from this pile of sheets to free the same when the accumulat d pile is to be released to the carrying-oil mechanism, the mechanism for operating the pins is different. I have here shown extendrcc lr shaft 77 with arms 85 through which project screws 87' which may make contact with the trunnionr; 89 ofthe cylinder 15 to limit movemcntot the shaft in one direction. At one end of the cylinder, herein the nearer end viewing Fig. 1, the arm 85 forms a portion of a lever 91 which carries a cam roll 93 by means of which the rock shaft may be operated. To this lever 91 I have also shown connected a r d 95 passing through a fixed lug 97 atthe side of the cylinder and surrounded by a strong helical spring 99 interposedbetween this lug and a collar on the rod and stronglytending to rock lever 91 clockwise viewing Fig. 1 and i the rear of the out just made A f rectilinear retraction 10" through the cylinder a here shown as having a hollow square body, from which project; arms 7 9. which are suitably engaged with the pin carv positive mechanical holding the screws 87 against the stops provided by the trunnions 89 and the pins (59 projected in the position shown in Fig. 4: to

receive successive sheets from the cylinder 9.-

lated pile of sheets and this eliected by actlonthrough the rock shaft 7 as it will be understood that a rela-- tiveiy powerful action is desirable to release Cli till

the pins from the restraining friction the pile of sheets. F or this purpose I utilize a suitable cam which may be moved into posi tion to cooperate with roll 93. in Fig. l the cam surface 101 whichcooperates with roll '93 is shown as adjustably mounteden a swinging arm 103 depending "rom the center 105 in such manner that when the parts are in position'the surface 191 is presented gener ally in an angular position relative to the cylinder 15 corresponding to the space between three and four oclock on a clock dial. The arm 103ma y be :more or less angular presenting at the angle in about two oclocl: position a cam follower roll 107 which is adapted to be operated on'by an edge earn 109 on a shaft 111 which is rotated at a fractional speed relative to the cylinder 15, 1 to 10. Thus, on every "tenth revolution of the cylinder the arm 103 is swung clockwise and the surface 101 is brought into position to act on cam roll 93 to rock shaft 77 and retract the pins. 7

Suitable stripper means are provided to lift the-sheets from the pins and from the surface of the cylinder and to hold the leading edges extended away therefromto be guided to the carrying-off mechanism. In Fig. 4 I have shown stripper arms 113, the full line position being the active position when they serve to strip the paper and the dotted line position being the inactive position which they occupy for the major portion of the time. The full'line showing is somewhat inconsistent with the showing of the pins 69, the position of which in Fig. 1 corresponds to the dotted line position of the stripper arms 113. of the pins 69 is the normal position which they occupy the major portion of the time and because of the position of the arms 113 inwardly of the circumference of the cylinder, they in their normal position would in any instance show dotted. Consequently I have adopted the full lines for the operating position of arms 113 by way of contrast. These arms 113 may be attached to a rock shaft 115 extending lengthwise of the cylinder in a position rearward of the position ofthe pins 69 and extend toward the same through suitable grooves in the position of a secant and thTair ends cross the line of pins and may be terminally directed downwardly, as indicated at 117, to'guard against the introduction of anything beneath the same. From the time However, the position rock shaft 115 is operated,which is actually at the time thejpins 69 are withdrawn, the arms 113 are lifted from the dotted line 'po sition, liftingthe leading edge of the pile-of sheets and holding itextended fromfthe edge of the cylinder-tobe shotolf at an'angle thereto "to suitable carrying away mechanism, such, for instance, asdelivery tapes and cooperating fly sticks. For-this purpose shaft 115 (see l ig. 1') carriesjat oneend of the cylinder, that is, the one opposite that-on which lever 91 is located, a lever 119 carryin'g caln roll 121. Suitable spring means similar to those attached to lever 91 may be utilized for returning the stripping arms to'the nei' tra'l or dotted line position of big. 4 but to simplify the drawings they have been omitted from Fig. 1 as they are conventional and readily understood.- The cam surface c0- operating with cam roll 119 should be located with respect to-cylinder 15 at such an angle at the rear of the location of thecam surface 101 as corresponds with the angle between the rolls 93 and 121. I have herein shown this surface 123 as carried on a swinging arm 125 located at the further end of'th'ecylinder 15 and projecting upwardly from itsp'ivot 127; The cam surfa'c'e'123 may extend substantially from the one o clock to the two oclook position. This arrangement of the arms 103 and 125 at opposite ends of the cylinder 15, one depending from its pivot and the other projecting upwardly therefrom, provides for a proper positioning of thecam surfaces and permits the organization of a cam follower 129 at the angle of arm 125 which may be operated on by an edge earn 131 mounted on the shaft lllwhich carries cam 109, these cams being suitably timed on sheets from the cylinder 15 suitable stripper 1 ngers 133 may be provided which may be swung in in advance of the leading edge of the pile of sheets, their ends being received as customary in suitable grooves in the cylinder to provide a surface extending angularly from the roll along which the pile of sheet-s is directed, Herein I have shown these fingers as mounted on a rock shaft 135 which may be operated by link-work diagrammatically shown in Fig. 1 from a cam 137 on the fractional speed shaft 111.

There has been no attempt to show inthe drawings the relation of the parts transversely of the machine but it will be understood that there are longitudinal series of pins, stripper arms and the like and that various of the cooperating parts, as, for instance, the stripper arms 113 and the stripper lingers 133, are placed out of alignment at different planes and that suitable clearance slots or grooves are provided in the various speed. The relative timing of cams 101 and a 123 is illustrated, however, in Figs. 1 and 1 7 g the latter and the right hand portion of Fig.

1 being sections through the shaft lllin different planes and showing the parts at the same moment of the cycle.

I have described in detail the construction illustrated in order that it might be well understood and without any definitive or limit-- ing intention.

Vihat I claim as new and desire to secure by Letters Patent I shall express in the following claims:

1. In paper handling mechanism, an accumulating cylinder having reciprocating pins, a rock shaft longitudinal of the cylinder connected to said pins to reciprocate the same, a lever on the rock shaft atone end'of the cylinder,.a second rock shaft. longitudinal of the cylinder, stripper arms carried thereby, a lever on the said secondshaft at the other end of the cylinder,followers on said levers, swinging arms cooperating therewith and a shaft adjacent the cylinder having cams for positioning said arms.

2. In paper handling mechanism, an accumulating cylinder having reciprocating pins, a rock shaft. longitudinal of the cylinder connected to said pins to reciprocate the same, a lever on the rock shaft at one end of the cylinder, a second rock shaft longitudinal of the cylinder, stripper arms carried thereby, a lever on the said second shaft at the other end ofthe cylinder, followers on said levers, swinging arms cooperating there.-

with and means for intermittently moving said arms to act on said followers. 7

3. In paper handling mechanism, an accumulating cylinder having reciprocating pins, a rock shaft longitudinal of the cylinder connected. to said pins to reciprocatethe same, a lever on the rock shaft at one end of the cylinder, a second rock shaft longitudinal of the cylinder rearwardly of the first, stripper arms carried thereby and extending over the line of the pins, a lever on angular positions about the cylinder, and a.

shaft parallel to the cylinder having cams presented to intermediate portions of said.

arms to position the same'for operation of said surfaces on said followers.

4. In paper handling mechanism, an accumulating cylinder having means for engaging the sheets, a rock shaft longitudinal of the cylinder for operating the same, a lever for the shaft, a second shaft longitudinal of the. cylinder carrying stripper arms, a lever for the said second shaft, stripper fingers adapted to be moved toward the cylinder to divert the sheets therefrom, movable cams adapted to be shifted into the path of said levers, a fractional speed shaft adjacent the cylinder and cams thereon for moving said movable cams and for operating the fingers. p

In testimony whereof, I have signed my name to this specification. r

CHARLES A, MEISELQ.

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