US1125648A - Paper-cutting machine. - Google Patents

Description

W. 0. CARLSON. PAPER cu'rwme MACHINE.

APPLICATION FILED AUG. 7. 1913.

Patented Jan. 19, 1915.

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APPLIUATION IIL'ED AUG. 7, 1913. Patented Jain.

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W. G. GARLSON. PAPER CUTTING MACHINE. APPLICATION FILED 11111.7, 191a.

Patehted Jan. 19, 1915.

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Patented Jan. 19, 1915.

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W. 0. GARLSON.

PAPER CUTTING MACHINE.

APPLICATION FILED AUG. 7, 1913. r 1,1 25,648. Patented Jan. 19, 1915.

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W. G. GARLSON.

PAPER CUTTING MACHINE. APPLICATION FILED-AUG. 7, 1913.

Patented Jan. 19,1915.

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. W C W Witmeomzo @511 Jay, rflk W. C. CARLSON.

PAPER CUTTING MACHINE.

APPLICATION FILED AUG. 7, 191a,

Patented Jan. 19, 1915.

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glwuem toz Lv-Ltmeooeo WALTER o. 'cARLs'on, or MILWAUKEE, w soonslmnssreltonro STOKES &.SMITH (16M- PANY, or SUMMERDAJ3E, PENNSYLVANIA, A CORPQMTION or rn'nns'rnvanm.

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Specification of LettersPatent;

. Application fi1edAugust7,191:&. seriarno. reasee.

To all whom it may concern.

Be it known that I, WALTER C. GARLSON,

a citizen of the United States, residing at.

Milwaukee, inthe county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Paper-Cutting Machines, ofwhich the following is a specification.

This invention relates to paper cutting machines, and has for its special object to provide a'machine for cutting into sheets of equal size,a continuous web of paper woundinto a roll and drawn therefrom through themachine. by an intermittently operated rected to a simple device inconnection with thedeliveryctable, for'staekingthe sheets as they fall from the cutters in'asmooth, even pile Without overlapping edges.

A still further object of the-invention resides in an automatic trip mechanism for disconnecting the driving means from the feeding and cutting devices to stop the operation of said devices after apredetermined number of sheets have been out, said trip mechanism being adjustableat willto-tli'e number of sheets desired.

-With these-as the principal objects view the invention consists of the novel construction, combination and' anrangementof parts hereinafter described and pointedoutin the appended claims, reference being had,

to the accompanying drawing, in which-:-- Figure 1 is a 'plan view of the machine complete. .Fig; 2 is a sideelevation of the same. Fig. 3 is an elevation viewed from the delivery end of the machine. Fig. tisa vertical longitudinal sectional view of the machine. Fig. 5 is a detail view, enlarged, of one end of the paper straightening means.

Fig. 6 is a cross sectional view of the same on the line 66, Fig. 5. Fig. 7 is an underside view of aportion ofthe deliverytable showing thearrangement ofa parts for imparting motion to the sheet stacking or piling device. Fig.8 is a sectional View of the same on the line 8-i8, Fig. 7. Fig. 9:1s-v an.

elevation partlyv in section of the trip mechan sm for disconnecting the driving means after apredetermined number of sheets have been out. Fig. 10 is an end elevation of the saine. Flg. 11': is a view of a detail of the trip mechanism.

In the drawings, the frame byw-hich the parts ofthe machine are su ported comprises legs 15 rising from the oor, connect-- ed together at their upper ends by angle bars 16-011 the front, rear, and sides thereof and by similar bars 17 to a short. distance above their lower. ends. Mounted in bearmgsonthe side bars 17 is a horizontal shaft '18, driven by a pulley 19 or other power, and

having affixed' thereon a pinion 20 for rotatlnga gear wheel 21 on ashaft 22 parallel to the shaft 18, on which shaft 22 is fixed a cam 23xand a crank arm 24.

At the top of the machine and extending from side'toside thereof are' two rollers 25, 26 mounted at their ends in bearings bolted to the. side bars 16,. said. rollers forming guldes for the paper to be cut. Lying parallelto the roller 26-011 the'side opposite the roller is a feed roller 27 supported at each end, in upright brackets 28 rising from the side bars 16. Above the roller 27 is a small ro1ler29 carried in bearings; 30 slidable in the-brackets. 28- and forced downward by springsBlto maintain roller 29in contact with theroller 27; When desired the roller 29 may be liftedfrom the roller 27 by means of. cam blocks 32 carried. on the ends of a shaft. 33that extends from one bracket 28 to the other and hinged on the upper ends of short pins 34 connected to the bearing 30. A handle 35 projects from one of the cam blocks to permit said=bloeks to be turned for the purpose of raising and. lowering; the roller22.

Thefed roller'27 is driven positively but intermittently from. the cranlrQ-i b means new tobe: described. "On-one on of the shaft of roller 27 is-fixeda pinion 36 with which engages-a gear wheel 37 carrying on one side thereof pawls 38, said pawls. adapted; to engage a loose ratchet wheel 39 conrate tedraia. in, aera- T onion.

centric with the gear wheel, when said. 1

on the upper end of a link bar 42 pivoted at its lower end to a block 43 slidably mounted on" the crank 24. A screw 44 carried by the crank and threaded into the block 43 en ables the latter to be adjusted upon the crank a greater or less distance from the axis of the shaft 22 for the purpose of varying the throw or range of movement of the link bar 42 and consequently the distance turned by the feed roller 27.

A short distance from the feed roll- 27 is a stationary bar 45 extending from side to side of the machine and connected to the bracket 28, the upper surface of which bar is preferably inclined in an upward direction away from the roller 27 andfsupports a stationary knife 46 adjustably bolted thereon. From the bar 45 a plurality of fingers 47 project toward the roller 27 to serve as supports for the paper traveling toward the knife. Coacting with the stationar knife 46 is a movable knife 48 adjustably astened on a bar 49 carried by ears 50 projecting from a horizontal rail 51 bolted at its ends to the upper-ends of slides 52 carried in guides 53 projecting from the main frame and joined together attheir lower ends by a tie bar 54. The two slides 52, the rail 51 and the tie bar 54 together form a carrying frame for the movable knife 48. A link 55 connects the knife frame with one end of-a rocking lever 56 fulcrumed intermediate its ends at 67 and provided at its opposite end with a roller 68, held constantly in contact with the cam 23 by springs 59 connected each at one end to the guide bar 54, and at the other end'to pins projecting from the frame.

As thus constructed each rotation of the shaft 22 turns the crank 24 to givethe link bar 42 a double reciprocation. The upward movement of the link bar turns only the pinion 40 and ratchet wheel 39 in one direc tion, while on its downward movement these parts are turned in reverse direction with the result that pawls38 now engage said ratchet and the gear wheel 37 is turned, rotating the pinion 36 and the feed rollers 27 and 29. During the time the feed "rollers are immovable or not feeding the paper the depressed portion of the cam 23 is passing the roller 58 on the lever 56, thus permitting I the springs 59 to draw the knife frame with the-knife 48 downward, the cutting edge of which knife in connection with thestationary knife 46 severs the paper previously. fed between them.

The paper to be cut from the sheetis brought to the machine in a continuous web wound in rolls X, each of said rolls is mounted on a shaft 60 and the latter placedon bearings 61 carried on brackets 62 projecting from the rear of the machine. To prevent undue rotation of the relief paper, a brake 63 of well known form is provided,

the shoe 64 of said brake being held in contact with the periphery of theroll X by means of a spring 65. From the roll X a continuous web of paper A passes over the roller 25,- through a straightening device 66, beneath the roller 26 and then between the feed rollers 27 and 29, passing from thence to the knives 46 and 48.

The straightening device'in the present instance comprises a horizontal bar 67 from the ends of which project pins 67 that are carried in upright supports 69 bolted to the side bars 16 of the frame, said bar 67 having a deep groove 67 formed in its upper side. Through the top of the supports 69 are threaded hand screws 7 O that bear upon the pins 67. Coiiperatihg with the bar 67 is.

a second bar 68 formed with a tongue (2 on its under side that enters the groove 67 in the bar 67. From the ends of the bar 67 brackets 71 project upwardly therefrom and over the ends of the bar 68 through holes in which brackets hand screws 73 extend, their lower ends being threaded in the cross bar 68 for the purpose of adjusting the space between the bars through whlch the paper passes. Jam nuts 74 are threaded on the screws 73 on opposite sides of the brackets 71 to lock said screws in place after the bar 68 has been adjusted as described. The paper Web passes over the roller 25 thence between the bars 67 and 68 passing into the groove 67 and around the tongue 72. By thus causing the paper to be drawn through the narrow space between the two bars, all wrinkles, creases, and irregularities in said paper are straightened and the paper passed to the knives perfectly smooth.

As previously mentioned the web passes from the roll of paper X over the roller 25 through the straightening bars 66 under the roller 26 thence between the feed rollers 27, 29 to the knives which at each operation cuts a sheet from the web. A Said sheets fall upon a table 75 secured to the frame below the knives and preferably inclined downwardly at its outer end. The sheets as they drop fall between abutting boards 76 that move simultaneously to stack' the sheets in a smooth even and regular pile upon the table. The abutting boards 76 are operated by an oscillating lever 77 pivoted against the underside of the table 76 and having four arms 7 8 arranged in the form of a Greek cross. Each arm 78 is pivotally connected to a link 79, that, in connection with another link 80 pivoted at 81 to the table 75, forms a toggle from which a shorter link 82 hinged at one end to the toggle at the connecting pivot 83 between the links has at its other end, an' upwardly projecting pin 84 that passes through a slotin the table andis connected to a rod 85seated in a groove 86 out in the upper surface of the table 75. There are four of these grooves 86 which form a cross, at the intersection of which is inserted a guide plate 87 to support the inner ends of the rods 85 which rods are provided'with heads to prevent withdrawal from the guide plate. Firmly fastened to each abutting board 76 is a sleeve 88 slidable on one of the rods 85 and provided with a thumbscrew 89, by means of which said sleeve and board are rigidly connected to the rod 85 to be moved thereby. When the cruciform lever 77 is oscillated the rods 85 through their connection with the toggle links 79 and 80 are moved longitudinally, thus causing all the abutting boards to be moved simultaneouslytoand from the intersection of the groove 86 whereby said boards engaging the edges of any displaced sheet returns the same to the pile, and vas said boards move the same distance at all times the pile of sheets will have the edges thereof arranged smoothly and in perfect order.

While any suitable means may be em: ployed for oscillating the lever 77, a very simple and efficient one is shown in the drawings, and comprises a rock shaft 90 carried in brackets extending from the underside of the table 75, and having on each end a slotted lever 91. A pin 92 projects from a collar 93 adjustably mounted on each slide 52 that forms a part of the movable knife frame, said pins engaging the slots in the levers 91. An arm 94'on the shaft 90 is connected by a rod 95 with one of the arms 7 8 of the lever 77. At each operation of the knife, the shaft 90 and levers 91 thereon are rocked by the collars 93, and through the connecting rod 95, the lever 77 is oscillated. The collars 93 are adjustably secured to the slides 52 so that upon raising or lowering said collars the relative position of the le"- vers 91 and rock shaft 90 are changed, thus causing an increase or decrease of space inclosed by the abutting board 76 to provide for slight changes in the size of the cut sheets. sheets is provided for y the adjustable connection between the boards andthe rods 85.

An important feature of the invention is the mechanism for automaticallydiscon nesting the driving means from feeding and cutting devices for the aper whenever a predetermined number of sheets have been cut. By means of this mechanism the machine requires very little attention, as the same after being set to cut a certain number of sheets will, as soon as said sheets have been cut, cease to operate. This mechanism comprises a horizontal shaft 96 mounted in hearings in the frame above the shaft 22 and driven by the gear wheel 21 on the latter shaft meshing with-a gear wheel 97 on the shaft 96. The shaft 96 has an exterior screw thread 98 cut thereon throughout its whole length' between the gear wheel 97 and the Greater chan e in; the size of the bearing for the opposite end ofthe shaft. At one side of the shaft 96 is .a guide bar 99 the ends of which are mounted in suitable brackets, and slidable on said guide bar is a sleeve 100 from which projects an arm 101 toward the shaft 96, .said arm terminating in a traveler 102 threaded on its under side to engage the thread 98 on said shaft and be moved longitudinally along said shaft as the latter rotates, the traveler being guided in its movement by the bar 99 and sleeve 100. Above the shaft 96 is a'rod 103 slidable longitudinally in bearings 104 bolted on the frame bars 17. The rod 103 is adapted to be moved in one direction by a spring 105, and in the opposite direction by the traveler 102upon which is a lug 106 adapted to engage the end of a downwardly projecting stop finger 107 adjustably mounted on the rod 103. Upon said rod is marked a scale each graduation of which indicates a certain number of Sheets, and when it is desired that each pile of sheets shall contain a certain number, the finger. 109 is moved to the graduation indicating that number and there secured by a thumb screw 108. One end of the sliding rod 103 engages the upper end of a swinging-lever 109 pivoted at its lower end to the main frame and provided near said lower end'with a shoulder 110. A horizontal lever 111 is also pivoted intermediate its ends to the main frame, and extends across the vertical lever 109 near its lower end, one end of said lever when depressed engaging beneath the shoulder 110 on the lever 109. Theopposite end 112 of the lever 111 is curved to engage a circumferential groove 113 in one member 114 of a clutch by means of which the driving pulley 19, rotating loosely upon the shaft 18- may be coupled thereto. The clutch member 114 carries a sliding pin 115, which by means of a spring 116 causes. the engagement of said pin with a hole in the hub of a pulley 19, whereby said pulley is coupled to the shaft. The other end of the pin 115 is bent at right angles and stands in such position that when the lever 111 is disconnected from-the shoulder 110 a spring 117 causes the end 112 of said lever to enter the groove 113, so that, as the shaft 18 rotates, the bent end of the pin 115 encounters the lever end 112 which having a beveled side slides said pin endwise to withdraw it from the hole in the'hub of the pulley 19. The stop finger 107 having been set as described, the lever 111 is turned on its pivot .until it engages beneath the shoulder 110 of the lever 109. This disconnects the end 112 of the lever 111 fromthe sliding pin 115 which through its spring 116 connects the rotating driving pulley '19 with the clutch member 114 to drive the machine. The threaded shaft 96 is also rotated and the traveler 102 because of its engagement with said shaft Will ;.be Slowly moved longitudinally thereof, and in due course of time the lug 106 thereon encounters the finger 107 and slides the rod 103 in its bearings. This movement 'of the rod 103 swings the lever 109 sufficiently far to disengage the shoulder 110 thereon from the lever 111, permitting the latter, through its spring 117, to turn on its pivot, the end 112 of said lever entering the groove 113 in the clutch member 114. The sliding pin 115 as it rotates engages. the inclined side of said end and is withdrawn from connection to the hub of the driving pulley. The latter.

continues to rotate upon the shaft 18 with out turning said shaft, whereupon all movement of the various parts of the cutting machine ceases and said parts Will remain inactive until the trip mechanism has again been reset. To reset the lever 111 a hand lever 118 is pivoted to the side of the machine, or one may be provided on each side, from which lever an arm 119 projects that engages the end of lever 111 opposite its end 112. On moving the hand lever in the proper direction the arm 119 depresses the end of the lever connected thereto until it is below the shoulder 110, whereupon the spring 105 slides the graduated rod 103 in the proper direction to move the lever 109 until its notch 110 engages with the lee ver 111,,

For the purpose of keeping record of the number of sheets cut, acounter 120 is mounted upon the movable knife frame and reciprocates with said frame. The operating lever 121 of the counter is connected to the frame of the machine by a rod 122.

What I claim is 1. In a machine for cutting a continuous feeding forward the web of paper, a knifeframe to carrya knife adapted to sever the web into sheets, a table for receiving the severed sheets, means on the table for engaging the edges of the sheets for alining them, actuating means beneath the table for actuating said alining means, and a connection from the said knife frame to said actuating means for moving the same.

2. In a machine for cutting a continuous web of paper into sheets in combination, a frame, a feed roller for periodically feeding forward the web of paper, a rotating crank, a member connected with said crank and having means associated therewith for rotating said feed roller, means for adjustablyattaching said member in different positions along said crank to change the amount of movement of said feed roller, a knife frame having a knife for severing sheets from said web, and means for auto-- matically actuating said knife frame to sever sheets from said web. I

3. In a machine for cutting a continuous 'web of paper into sheets in combination, a

frame, a feed roller for feeding forward the web, a crank adapted to rotate, a rack attached to said crank and adjustable radially thereupon to change the movement of .i

said rack by said crank, a pinion, means for guiding said rack to mesh with said pinion, a one-way drive connection between said pinion and said feed rollerfor driving said feed roller periodically, the knife frame having a knife for severing the sheets and means for actuating said knife automatifeed roller periodically, the knife frame having a knife for severing the sheets and means for actuating the same automatically between the feeding periods when said feed roller is rotated, said automatic meansineluding a cam rotating when said crank rotates, and a cam lever actuated thereby and connected with said knife frame.

5. In a machine for cutting a continuous web of paper into sheets in combination, a frame, a feed roller for feeding forward the web, a crank adapted to rotate, a rack attached to said crank and adjustable radially thereupon to change the movement of said rack by said crank, a pinion, means for guiding said rack to mesh with said pinion, a one-way drive connection between said pinion and said feed roller for driving said feed roller periodically, the knife frame having a knife for severing the sheets and actuated automatically between the feeding periods when said feed roller is rotated, a presser roller cobperating with said feed roller, and means for raising and lowering said presser roller at will. 7

6. In a machine for cutting a continuous web of paper into sheets in combination, feeding mechanism, a movable actuating frame carrying a knife, means for periodically actuating said feed mechanism to advance the web to said knife, means for actuating said knife frame to sever the web into sheets, a feed screw adapted to be rotated when said feeding mechanism is actuated, a nut moving on said feed screw, a trip device for disconnecting the driving means for said feeding mechanism and arranged to be actu ated by said'nut.

7 In a machine for cutting a continuous web of paper into sheets in combination, feeding mechanism, a movable actuating frame carrying a knife,

meaesa means for periodically actuating said feed mechanism to advance the web to said knife, means for actuatingisaid knife frame to sever theweb into sheets, a feed screw adapted to berotated when said feeding mechanism is actuated, a

nut moving on said feed screw,-a trip device for disconnecting the driving means for said feeding mechanism and arranged to be actuated by said nut, said nut being adapted to engage the side of said feed screw, and

means for mounting said nut'to be moved out of-engagement therewith to permit the movement of said nut along said screw and independently of the rotation of said screw. 8. In a machine for cutting a continuous web of paper into sheets in combination, a feed roller for advancing the web of paper, a paper straightening device through which the paper passes before passing to said feed roller, said straightening device comprisin a pair of substantially straight parallel bars in close relation, one of said bars having a longitudinal groove therein, and the other bar having a tongue thereon prpiiecting into said groove and slightly space therefrom to form a space through which the web of paper passes, meansfor adjusting said bars relatively to each other, a supply roll from which the Web passes, a movable knife frame having a knife for severing the web into sheets, means for periodically actuating said feed roller to advance the web, automatic means for actuating the knife'frame to sever a sheet from the web between the periods of rotation of said-feed roller, and a brake on said supply'roll for preventing the rotation of the supply roller by its own momentum when said feed roller is inactive and the knife is descending.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WALTER C. CARLSUN.

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