US2776610A - Cutting and creasing press - Google Patents

Description

Jan. 8, 1957 w. ROSELIUS CUTTING AND CREASING PRESS 4 Sheets-Sheet 1 Original Filed July 29, 1952 m mm L. W. ROSELIUS CUTTING AND CREASING PRESS Jan. 8, 1957 Original Filed July 29, 1952 4 Sheets-Sheet 2 W hw Jan. 8, 1957 L. w. ROSELIUS CUTTING AND CREASING PRESS Original Filed July 29, 1952 4 Sheets-Sheet 3 IN I ENTOR. 440/5 144 P0621 /US 47 ra/e NH;

L. w. ROSELIUS 2,776,610

QUTTING AND CREASING PRESS 1 Sheets-Sheet 4 W W L HW INVENTOR (do/s 049164:

MM gm Jan. 8, 1957 Original Filed July 29, 1952 u l I United States Patent 2,776,610 CUTTING AND CREASING PRESS Louis W. .Roselius, LakeSuccess, N. Y., assignor to S & S Corrugated- Paper Machinery Co., Inc., Brooklyn, N. Y., acorporation ofNew York This. application is a continuation of my copendi'ng application, Serial-No.- 301,451 filed July 29, 1952, now

abandoned;

My present invention relates-tohigh speed cutting and creasings 'presses and more particularly to a cuttingand creasing press: arranged to operate continuously on blank sheets ofcorrugated board, cardboard, solid fiber or other:boards to produce b'ox' blanks or other blanks with appropriate creases defining fold lines and appropriate slots and cuts-defining panels.

Heretoforecutting and creasing presses in commercial use have: been primarily of the platen type similar to platenprinting presses where' appropriate blades were placed. in 1a. die and supported on a platen which then moved toward and away from a plate on which the paper blank :to. be :1 treated was laid.

In anieifort to 'devis'emeans which'would increase'the 1 rat-eof productiomattempts were made to utilize rotary dies. in which the entire die was curved'around a roll with respect to which the blank was moved.

This was'difiicultto achieve with accuracy, however,

owing. toth'e curvature of the roll and the making of-the die-fora :curvedsurfaceinvolved problems of production and maintenance rnot--present in a fiat die.

The objectof my invention is .the formation of a cutting andcreasing press wherein a flat die may be used but where nevertheless the sheet. to. be formed maybe 1 and creasing press showing the same in the position where j a sheet ftosnbef out has beerrfed in.

Figure 2 is-a viewsimilar to that of Figure 1 showing the sheet being cut and creased.

. Figure3I--is.,a view. similar..to thafaofTFigures-I and 2 showing the-(completion...ofrthe. operation andfiith'ei 'sheet about to be unloaded.

Figure 4 is a top plan view of my novel cutting and creasing press taken from line 4-4 of Figure 1 looking in the direction of the arrows.

Figure 5 is a fragmentary view showing a detail of the sheet removal apparatus.

Referring to Figures 1 to 4, my novel cutting and creasing press is supported on a suitable frame 10. A motor 11, shown schematically, drives a pulley 12 which through belt 13 drives pulley 14. Shaft 15 drives the paper feed assembly indicated generally at 20. Sprocket 16 keyed to shaft 15 drives sprockets 17 and 18 by means of chain 19. Sprocket 17 on shaft 21 drives the paper feed out elements 22 of the mechanism. Sprocket 18 keyed to shaft 23 drives the cutting and creasing assembly 25.

2,776,610 Patented. Jan. 8, 1957 The interconnection of'the. sprockets 16, 17 and 18 ensures a simultaneous synchronous drive so that'the paper feed mechanism 20, the feed out mechanism 22 and the cutting and creasing mechanism 25 operate at all times in appropriate timed relation to each other.

The cutting and creasing mechanism 25 is the-heart of the .machine. A bed 30 is provided on which a plate or die 31, see especially Figure 4, may be secured; The die 31' has appropriate blades for making the desired creases or cuts in aebox blank 32 placed thereon.

A pressure quadrant 35 is arranged so that as it rolls over a blank 32 on the die 31 it presses on the blank on'the die and causes the blank to be appropriately cut and creased. Resilient pads on the die, as is well known in the art, then raise the blank up on the. upper surface of the blades to permit its withdrawal.

The quadrant 35 is shown in Figure l in position to receive the blankto be cut. Figure 2 shows the cutting process being performed by rolling the quadrant over 'the die. Figure 3 shows-the process completed and the blank ready to be removed.

The quadrant 35 essentially is a heavy member having a smooth part cylindrical surface and, therefore, corresponds' to alarge roller which is rolled over the blank on the die 31.

Quadrant 35 is rotatably carried by shaft 36 in blocks 37, 37 which ride in slots 38, 38 in the upper guide members 39, 39.

Sprocket 18 drives shaft 23 which in turn drives crank 41 keyed thereto. Crank 41 is connected. by pin 42 to link43. which is connected'to either shaft 36 or blocks 37. Shaft23 may be carried'across the machine and have a crank 41 and link 43 on each side.

Rotationof crank 41will' asseenby a comparison of Figures 1, 2 and 3.produce an oscillatory rotation of quadrant 35 to create the. necessary cutting pressure.

To avoid any slippage of quadrant 35 with respect to die-31, gear teeth 50 are provided at the lower outer edges of quadrant 35 meshing with the stationary racks 51. on the. bed 30 oneachside of the die 31.

While .it isobvious that, to remove overhead structure, the bed 30 anddie.31 may beinverted with the quadrant 35 underneath, the position of the elements here shown is preferred since conventional feed in and delivery, elements may be used without the need for special means for supportingthe paper blank after it is fed in, while it is being'cut and during delivery.

The paper feed-section 20 comprises .a hopper 60 with frontgauges-61, back gauges-62 and side gauges 63, adjustable to the size of the blanks32 to be cut. The front gauges 61 are raised above table 65'at 66 by a distance equal to morethan the height of one blank 32 but less than the height of two such blanks so that only one blank may befed'out'at a time.

The feedslat 70." is supported on posts 72 which extend up. through slots in table 65. The front edge 74 of "slat 70is adaptedto engage the trailing edge of the lowest blank 32 in the hopper, see Figure 3. Slat 70 is adjustably mounted on posts 72 by bolts 76 passing through openings 77, see Figure 4. Slat 70 may rock on bolts 76 and is guided upwardly by compression springs 78. Slat 70 may also be of resilient material and is chamfered at 80 to ensure its moving back under the pile in hopper 60 during the return strokes on short sheets.

Not only may slat 70 be adjusted by bolts 76 as above pointed out but its stroke may be adjusted by appropriate arrangement of the drive mechanism described below.

Posts 72 which carry feed slat 70 are supported on slide blocks 81 which ride on rods 82. Crank 83 on shaft 15 drives link 84 on each side connected to pin 85 on lug 86 of each block 81. Rotation of crank 83 thus causes link 3 84, blocks 81 and slat 70 to oscillate as seen in Figures 1 to 3. Link 84 is connected to crank 83 by pin 90 in block 91 carried in slot 92 by screw 93 which may be adjusted and locked by lock nut 94 to adjust the efiectrve length and hence the throw of crank 83 and slat 70.

Since shaft is driven as above described in synchronism with quadrant and all other elements of the machine, slat moves the blank 32 into the die 31 when the quadrant 35 is in the position of Figure 1. Slat 70 then moves back as quadrant 35 rolls to make the impression. When quadrant 35 reaches the Figure 3 position, the impression is made and the feed out mechanism operates.

The die 31 is cut out at the delivery end at the two points 100, to permit the pull-out or feed elements in section 101, hereinafter described, to grasp the blank 32 and pull it out.

The pull-out elements, of which there are preferably two, comprise as seen particularly in Figure 5 (but see also Figures 1 to 3) a pair of spring fingers 102, 103 on each side. Finger 102 is secured to block 104 and slidable therewith. Finger 103 is hinged at 105 on lug 106 carried by finger 102 and its end is biased by tension spring 107 to the position shown at the right of Figure 5. Finger 103 also carries rigidly secured thereto the lever arm 110 with roller 111 at the end thereof.

In the withdrawn and inoperative position of the right end of Figure 5 and in Figure 3, since roller 111 is not held up, the finger 103 is down and out of pinching engagement with finger 102. As the block 104 moves to the left as hereinafter described, roller 111 which extends from one side of arm 110 rides under track 115 and on track 116. As the fingers 102103 move into registry with the edge of blank 32, roller 111 rides up incline 117, raising the gripping end of finger 103 and moves up past the trap door in track 115, raising it. When roller 111 passes trap door 120, suitable means such as a coil spring at hinge 121 snaps it closed.

At this time, fingers 102, 103 on each side have pinched the blank 32 between them at gaps 100 in the die on each side. Then as block 104 is moved back to the right, roller 111 moves on top of track 115 maintaining the pinching or gripping engagement of fingers 1.02-103 to withdraw the blank 32.

At the completion of the withdrawal, roller 110 snaps off the end 125 of track 115 opening fingers 102, 103 and releasing the blank 32. Blank 32 then drops on transverse delivery belts operating over rollers 131 and is taken away from the machine; belts 130 are driven by any suitable means which may include a drive connection to shaft 132 carrying rollers 131 from motor 11.

Blocks 104 carrying fingers 102, 103 are mounted on each side on slide blocks movable along rails 141. Shaft 21 carries crank 143 connected by pin 144 to link 145 which is connected by pin 146 to lug 147 on side block 140.

Rotation of shaft 21 in synchronism with the other shaft drives the fingers 102, 103 (compare Figures 1, 2 and 3) in appropriate timed relation to the other operation.

Only the stroke of the feed slat 70 need be adjustable since it must vary for different lengths of blank 32 which must all reach the stop position at the end of die 31 having the notches 100, 100this stop position being determined by the open position (Figure l) of quadrant 35.

By this means, a simplified cutting and creasing press is provided making it possible to apply full pressure along successive lines by rolling action and thereby obviate the need for substantial weight as required in platen presses.

In the foregoing I have described my invention solely in connection with specific illustrative embodiments thereof. Since many variations and modifications of my invention will now be obvious to those skilled in the art, I prefer to be bound not by the specific disclosures herein contained but only by the appended claims.

I claim:

1. A cutting and creasing press comprising a bed; means for supporting a die on said bed; a quadrant positioned to roll on said die; means for feeding a blank to said die from one end of said die when the quadrant is positioned at the other end of said die; means for rolling said quadrant over said blank; said means for rolling said quadrant comprising a fixed body member having a slot, said quadrant having an axle slidable in said slot, a link secured to said axle, said link having combined pivotal and translatory motion, and means for actuating said link comprising an additional link pivoted thereto, including means for effecting rotation of said additional link; and means for withdrawing said blank from the other end of said die when the quadrant is positioned at the first-mentioned end of said die, a drive member; said drive member being connected to said three aforementioned means and driving them in synchronism with each other.

2. A press as set forth in claim 1, said drive member comprising a sprocket chain, said blank feeding means, Said quadrant rolling means, and said blank withdrawing means comprising sprocket wheels for driving respective elements, said sprocket chain engaging said sprocket wheels so as to cause rotation thereof in unison.

3. A press as set forth in claim 1, wherein said blank withdrawing means comprises a pair of finger elements to seize the edge of a blank between the tips thereof, one of said finger elements being pivoted, and means for moving said pivoted finger element toward and away from said other finger element, comprising a link pivotally secured to said pivotal finger element and being engageable therewith at a predetermined angle therefrom, to actuate said finger element toward the other of said finger elements, including cam means engageable by said link for actuation thereof at predetermined points in the path of motion of said finger elements when said finger elements are moving toward or away from said die, including means for causing said translatory motion, said cam elements being spaced along said path of motion.

Davis Nov. 3, 1857 Kuster May 19, 1908

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