US998736A - Mechanism for cutting wrappers from strips. - Google Patents

Description

H. Y. ARMSTRONG. MECHANISM FOR CUTTING WRAPPBRS PROM STRIPS.

APPLIGA-TIONIILED NOV.10, 1909. RENEWED DEC. 31, 1910.

Patented July 25, 1911 Z SHEETS-SHEET 1.

H. Y. ARMSTRONG.

MECHANISM FOR CUTTING WRAPPERS FROM STRIPS.

' APPLICATION TILED NOV. 10, 1909. RENEWED D110. 31, 1910. 9,36, Patented July 25,1911.

2 SHEETS-SHEET 2.

, jmzm "till CHAKETISM FOR CUTTING- JL Z PMLRPPERS FELL.

998,?363. spec fication of Letters Irate st.

Application filed November 10, 1909, serial 1 10. 527,191. Renewed Becenibcr 31, 3.918.

To all whom it may concern:

Be it known that L HARRY iiniisrnono,

a citizen of the United States, and a resident of Elgin, in the county of Kane and h tate of Illinois, have invented certain new and useful Improvements in lhlechnnisinttor Cutting Wrappers from Strips, (iiase lilo. 2;) and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters oi reference I marked thereon, which form a portof this specifihtion.

This invention relates to improvements in paper feeding and cutting devices forcatting individual Wrappers or other short sections from a continuous strip of paper or like material.

The invention is herein shown as designed for use in connection with a Wrapping inachine for Wrapping chewing gum and like thin cakes or sticks of material, such, for instance, as that shown in my prior United States Letters Patent, Number 890,953, granted June 16th, 1908, but may be e1nployed Wherever it is desired to cut from a. continuous strip a SUCCQSE-JliG SQIlQS of short sections or Wrappers.

Among the objects oithe invention is to provide a feeding cutting mechanism which is exceedingly simple in its const ue-- tion and efiicient and positive in operation, and to otherwise improve devices having the general characteristics herein set forth for the above and other uses. The invention consists of the nastiest; hereinafter set forth and more particularly pointed out in the appended claims.

As shown in the the ings, rigors l is a side elevation of a wrspnerleeding cutting mechanism embodying my invention. Fig. 2 is a vertical section thereof. Fi 3 is a front elevation of the mechanisi'n, loch-- ing in the direction of the arrow, on line 3-3 of Fig. 1. Figs. a} and 5 perspective views of the cutting" knives. Fig. 6 isa detail horizontal section on the line nndersides or": inwardly extendinq All No.

and operates to cut from the lower end of a continuous strip a the wrappers and to discharge them into said recess, the strip being intermittently fed or advanced to the as the ra'rappers are severed since. The cutting and feeding devices are carried by these it They comprise end. members 16, 17, resoectiveiy', end ineinlicrs OfffiCh frame being connected by connecting bars or Webs 18, 19. The lower ends of the end members 16, 16 are provided with base supports 20 nines, and they are here Which are attached in any suitable manner to the nniin frame 21 of the machine proper, and said supports also carry the hearings for certain of the/feed roller shafts, as will hereinafter more fully appear. The swinging mom is i5 is pivoted at its upper end by means of pivot rod or pin 22 to the upper end of the fixed or stationary jaw, he said being provided with inwardly attending overlapp' ng lugs 23,-24- which are apertnred to we the pivot rod or pin. She said stationary and movable jaws any at their lower ends cutting knives 26, respectively, the cutting edges 27, 0t Whll. cooperate with each other with shearing engagen'ient. The fixed. knife extends between the end members of the fined jaw and is secured at its ends to the lugs 29 ot the end members of said fixed by incsns of screws 30 upwardly through titted knife an l Said kn through which hereby the station: nay ar and from the mo abl it I ed by rceson knives action ine the niovaole manner h to ClGSCIilJ. Lo noted above said knives, and carried my said jaws, strip feed rollers 36,respecit or termed the fixed and movable jaws] iio tively, between which is fed the strip a from which the wrappers or other sections are cut. The rollers are fixed to shafts 38, 89, respectively, which extend trgnsversely'across the fixed and movable aws and are mounted in bearings carried by the end members of said jaws. Said shafts are provided at their ends, at one side of the machines, with meshing pinions-40, 4-1 by which one shaft is driven from the other, and one of the shafts, thev shaft'38 as herein shown, may be driven in any suitable manner from the machine, as for instance, through the medium of a pulley 42. Located below the cutting knives, between the same and the wrapper receiving recess 14, are parallel coacting wrapper delivery rollers 43,- 44 that are fixed to shafts 45, 46 which extend transversely across the machine and are rotatively mounted in bearings carried'by the supporting base 20 of the fixed jaw. One of the shafts, the shaft 46 as herein shown, is adapted to be driven-from the shaft 38 of the strip feeding rollers by means of meshing gear wheels 48, 49 fixed to the shafts 38 and 46 respectively. The shaft 45 is driven from the shaft 46by intermeshing pinions 46 fixed to said shafts at one side of the mechanism.

r The means of mounting the movable knife 26 on the swinging aw are made as follows: The said movable knife 26 is supported from the shaft 39 of the roller 36 of the swinging jaw through the medium of hangers 50, 50,

one located at each side of the mechanism.

Said hangers are pivotally carried by the shaft 39 and are provided at their lower ends with inwardly extending studs 51, 51

\ tionary or fixed knife by means of springheld links 56, 56 which are pivoted at their lower ends to oppositely extending lugs 57 at the ends of the movable knife, between the pivot apertures 52 and the cutting edge of the knife. The said links are connected at their upper ends, through the medium of contractile springs 58, 58 with eye-bolts 59, 59 which extend upwardly through lugs (30 at the pivoted end of the movable'jaw and through adjusting nuts 61 lying on said lugs. The said links 56 are curved to pass around the strip feeding' roller 36.

The provision of'tlie guide arms 54, 54 at the ends of the stationary knife,v which extends inwardly toward the movable knife,- and against the under sides of which the movable knife is iyieldingly held and by which it is guideck affords means by which the cutting edges of the knives are maiir.

' tained in proper cutting relation whenthemovable knife is swung toward and from the fixed knife and also affords means for providing between said knives, when he movable knife is swung away from the stationary knife, a space through which the strip a may pass when said strip is .being fed downwardly by the feeding rollers 85, 36, the said guide arms 54 constituting the end boundarii of said space.

A feature of my invention resides in the provision of means for swinging the movable jaw toward and from the stationaryjaw to actuate the cutting knives in timed relation to the feeding movement of the strip a from which the wrappers are cut, so arranged that the feeding movement of the strip occurs when the knives. are separated and is arrested when the knives are brought together in cutting relation; the intermittent feeding movement of the strip and the cutting of the wrappers from the lower end thereof being alternately eifected. The construction herein shown for effecting this result is made as follows: One of the strip feeding rollers, to wit, the roller 36, as herein shown, is eccentric with respect to the axis of rotation of its shaft 89, while the other roller 35 is eccentric. The pinion 41 of the shaft of the eccentricroller is likewise eccentric and is arranged with its eccentric portion on the same side of the shaft is the eccentric portion of the roller. \Vhen the highest portion of the pinion 41 meshes with the mating pinion 40', therefore, the lower end of the swinging jaw will be moved outwardly and the cutting knives will be separated from each other as shown in Fig. 1, so that. at this time the strip of paper is free to pass between the cutting edges of the knives. The highest portion of the eccentric strip feed roller 36 is at this time between its shaft and the mating roller 35 so as to coact with the, latter'roller to feed or advance the strip between said rollers when the knives are so separated, as-will be apparent from an inspection of Figs. 1 and 2. When the lowest part of the eccentric pinion meshes with its mating pinion the swinging jaw is moved inwardly, under the force of a suitable actuating device, as a spring or weight, and when said aw swings inwardly the movable knife cooperates with the stationary knife to cut from the strip of paper a length or section that has been fed downwardly between the cutting knives at the time the highest part of the roller 36 cooperates with the roller 35. In order to interrupt the feed of the strip at thetime the knives are cooperating to cut a section or wrapper therefrom, the said eccentric feed reller is lowered or depressed in a part of its circumference, as indicated at 36. The engagement of the teeth of the lower portion of the pinion 41 limits the inward movement of the jaws and the roller 36 so as to leave i the roller 36 at this time clear or" the roller 35, whereby during the cutting action of knives-no adrance of the strip Wlil occur.

- T higher portion 36 of saicl feed roller 36 mode of a length equal to the length. of

Wrapper or section to he cut from thestrip, so that 111 each rotation of the roller 38 :1 length of the strip Wlil he feel dowm equal to the length of the Wrapper or sectionthe action of the teeth of the drivingpinions ting; action of the knives of said rollers, whereupon the feecling move ment of the strip is arrested during the out-- The means shown for holding the feed roller pinions pressed together and which also cooperates with the lower portion of the pinion 41 to move the knives into 611i?" ting relation, and oerniits the knives to sepw rate when the big est portion of the pinion 41 is engaged with its mating pinion. ere maclc as follows: 70, 'ZOdesignste two horizontalrods located one at each siole of the mechanism and extending" from front to rear thereof through la s 71, ally from the ens members of the jaws. Saicl rods are each provided at one end with a head 72 which heads engage the lugs '51 of one jaw and the rods have sliding engs ge-- ment With the lugs 71 of the other jaw, lnterposecl between the letter lugs enci screwthrcsded nuts or other suitabie heads *ZE ct the outer screw-threaded emis oi the res 70, are spiral expsnsively acting" springs M. These springs, as it will he oryvious tear to. press or force the jaws together to bring the knives in cutting relation, and tohoiri the strip roller pinions engaged with each other, and yield to permit the movable jaw and the knife carried thereby to he swung rearwardly when the highest portion or the pinion il engages with the mating pinion-9H).

In order, to guide the strip (lownwartlly to the space between the knives anal to prevent the strip from clinging or eolhering to the strip feed roilers, l have provided guirl' ing and clearing Wires 75, 76 the latter of which are fixecl in and cxtonfied downwardly from 2: her 77 that extencis across and connects the end members of the tionary jaw, and the former of which are fixed to a rocking bar 78 that is mounted at its ends in notched lugs 79 extending rear- Wardly from said her 77. 'l c said rocking bar 78 is held from rising in said notched lugs 79 by means of screws 80 extending transversely througi h the upper ends of the notches above saic bar 78. The wires 76 in the bar 77 and one old therein in any suitable manner, as for instance by the set screws 81 extending throu gh 2KeW-tl11f92tdB-Ll ooenings in said bar impinging at their 71 projecting inst the upper end s. The lower enoare geneother on opposit, ncl occupy groves er,

i rs,

a mechanism thus I i p iced rollers anti the loircr wrapper feed rollers are continoous y rotated and the strip, which. is unwound from a roll of paper {not shown) suitably supported above the cutting mechanism, is teat between tic upper feecl rollers clownwmsclly into the space between the knives at the time the highest portion of eccentric roller 36 coocts with the companion roller 35. A i; this time the highest portion of the pinion is coeotlng wi c its rooting pinion 4:0 to hold the cutting hTIk'lW QS separetetl so 38 to permit the strip to pass freely through the space between the knives. AS th higher portion of the eccentric pinion il leaves its mating pinion, the '7 or ct er equivalent rlevices swieg the movable 3m; inwardly to bring the knives relstiin 'Wi t. sch cth. rind hel brought into c l sting reiotion the olenrsnce deoression 36' of the roller 3'6 clearance W clcarzmcc Wi ollei with c oath of the a. .1. co lo me some so ssto afford as space between the roilers ftllii thus release the stri e from the gripping ction of the rollers and arrest its ieetl during; the cutting operation. it er Wrapper or section has oceii cut irons str n he so ion i the-res action the hi i

erstoocl that the structural details of the ed and cutting mechanism are capable of V time within the and scope o invention, sou. tion is not limited to'sucl'i details except hereinafter mode the subject of specific claims I claim as my invention:

1. Mechanism for feeding a st snfi'cutting sections from ec'ivcncc end thereof, comprising feeding means cutting messes members movable relativeiy toward esch other and carrying the cooperative parts of the feeding means and the cutting means and ooaptccl by such relative movement to bring the feeding and. cutting; moons into and, out of oper tive position, anti toes Ltor embers,

into cutting is brought opposite to its mating roller 35 the knive again separated, through 4. Mechanism for feeding a strip and cutting sections from the advance end thereof, comprising a fixed and a movable .jaw, cooperating knives carried by said aws, feed rollers carried one by'each jaw, and intermeshing'pinions on the shafts of said feed rollers, one of said pinions being an eccentric pinion.

5. Mechanism for feeding a strip and cutting sections from the advance end thereof, comprising a fixed and a movable jaw, co-

' operating knives carried by said jaws, strip feeding means carried by said jaws embracing an eccentric roller carried by one of said jaws, and an eccentric pinion fixed to the shaft of said eccentric roller for rotating the same and for controlling the cutting movement of said knives.

6. Mechanism for feeding a strip and cut ting sections from the advance end thereof,

. comprising a fixed and a movable jaw, co-

operating knives carried by said jaws, strip feeding means carried by said jaws embracing an eccentric roller carried by one of said jaws, and an eccentric pinion fixed to the shaft of said eccentric roller for rotating the same andforeontrolling the cutting movement of said ':i1ives, said eccentric roller being provided throughout a portion of its circumference with a .clearance depression for the purpose set forth.

7. Mechanism for feeding a strip and cutting sections from the advance end thereof, comprising a fixed and a movable jaw,.co' operating knives carried by said jaws, strip feeding means carried by said jaws embrac ing an eccentric roller carried by one of said jaws, an eccentric pinion fixed to the shaft of said eccentric roller for rotating the same and for moving one of the knives away from the other and a spring acting in opposition to the eccentric pinion for moving the mov able knife into cutting relation to the other knife.

8. Mechanism for feeding a strip and cutting sections from the advance end'thereof comprising, two feed rollers between which the strip is fed and fixed to shafts movable one toward and from the other, intermeshing pinions fixed to the shafts of said rollers one'of which is an'eccentric pinion, and cutfeed rollers between which the strip is fed and fixed to shafts, one of which is rotatively mounted in thefixed 'jaw and the other in the swinging jaw, one of said feed rollers being eccentric, and pinions on the shafts of said rollers one of which is eccentric, and cutting knives one of which is mounted. on the fixed jaw and the other of which is carried by the movable jaw.

10. Mechanism for feeding a strip and cutting sections from the advance end thereof, comprising a fixed and a movable jaw, two feed rollers between'which the strip is fed and fixed to shafts, one of which is rotatively mounted in the fixed jaw and the other in the swinging jaw, one of said feed rollers being eccentric, pinions on the shafts of said rollers one of which is eccentric, and cutting knives one of which is mounted on the fixed jaw and the other of which is carried by the movable jaw, and a springtending to press said jaws together.

11. Mechanism for feeding a strip and cutting sections from the advance end thereof, comprising a fixed and a movable jaw, two feed rollers between which the strip is fed and fixed to shafts which are rotatively mounted in said jaws, intermeshing pinions on said shafts, one of said feed rollers bein eccentric and the pinion on the shaft of sai latter roller being also eccentric and cutting knives one of which is mounted on the fixed jaw and the other of which is carried by the I movable jaw, one of said feed rollers being,

provided in its circumference with a clearance depression for the purpose set forth.

12. Mechanism for feeding a strip and cutting sections from the advance end thereof, comprising a fixedand a movable jaw, cooperating strip feed rollers carried one by each jaw between which the strip is fed, means for rotating said rollers arranged to control the movement of the jaws toward and from each other, a knife carried by the fixed jaw below said rollers and a cooperating knife pivoted to the movable jaw and having means for holding it yieldingly' pressed against the fixed knife.

13. Mechanism for feeding a strip and cutting sections from the advance end thereof, comprising a fixed and a movable jaw, cooperating strip feed rollers carried one by each jaw between which the strip is fed,

means for rotating said rollers arranged to control the movement of the jaws toward and from each other, a knife carried by the fixed jaw below said rollers, acooperating knife pivoted at its ends to the movable jaw and spring pressed links pivoted to the ends of the movable knife betweenv its cutting iae edge and its pivotal connection with the movable jaw for holding the movable'knife yieldingly pressed against the fixed knife.

14. Mechanism for feeding a strip and cutting sections from the advance end thereof, comprising a fixed and a swinging jaw, cooperating strip feed rollers carried one i by each jaw and between which the strip is fed, a knife carried by said fixed jaw below the rollers, and a coacting ltnife carried by the movable jaw, one of said knives being provided at its ends with arms which extend toward the other knife and upwardly HARRY YARRING'ION ARMSTRONG.

WVitnesses:

l V. L. HALL, WV. GOLDBERGER.

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