US242280A

US242280A - de beautais

Info

Publication number: US242280A
Authority: US
Publication date: 1881-05-31
Anticipated expiration: 1898-05-31

Description

(No Model.) 28h t -Sh t 1.

J. DE BEAUVAIS. e ee Machine for Cutting Gard Board. No. 242,280. Patented May 31,1881.

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J. DE BEAUVAIS." Machine for Cutting CardBoard.

No. 242,280. Patented May 31,1881.

PETERS Pnawumogmpher. washington, DA c,

NITE STATES y ATnNT Trice,

MACHINE FOR CUTTING CARD-BOARD.

SPECIFICATION forming part of Letters Patent No. 242,280, dated May 31, 1881.

Application filed November 19, 1880.

To all whom it may concern:

Be it known that I, JULES DE BEAUVAIS, of the city, county, and .State-of New York, have invented' a new and useful Improvement in Machines for Dividing Gard-Board, Paper, and Similar Materials, which improvement is fully set forth in the following specification.

The invention has for its general object to divide a sheet or web of au y suitable material both longitudinally and transversely at one continuous opera-tion, and is more particularly intended to cut single sheets of card-board or Othercmnparatively stiff material, although it can also be used in order to sever a web of paper or other flexible material, and to act upon more than one sheet or web at a time. [n severing several thicknesses of card-board at the same cut a bead is apt to be formed on the edges of the cards, so that they are of inferior quality.

In the manufacture of postal and playing cards and the best quality of cards for other purposes each sheet is cut singly, it being first divided lengthwise and then crosswise. The rst operation, or slitting, is effected by one or more pairs of rotary cutters or shears, which are combined with suitable feed-rollers on both sides of said cutters. The second operation is usually performed by operators using small hand-shears, the strip being held while cutting against a suitable gage. Attempts have also been made to cut a single strip from the slitting-machine into cards by a series of rotary cutters. In either case there is difficulty, without greater care on the part of the attendants than they can or are accustomed to give, in holding the strips to the cutters, so as to make the cuts exactly on the right lines, thus causing great waste of material. There is also great disadvantage attending the number of operations requiredthat is, after the slitting or division into longitudinal strips is effected one operation for each card, or with the series of cutters for each strip of moderate length, is

necessary.

In the present invention these difficulties are overcome, and vthe sheet of card-board, after being slit by suitable cutters,is divided. transversely wit-hout interfering with the continuous operation of those cutters, and while the several strips are so held as to insure that the (No model.)

severing takes place ou exactly the line desired.

It maybe here observed that in web-perfecting presses for printing newspapers, and in some other machines, devices have been and are now used to divide a continuously-fed web or sheet transversely, and also in some large presses for dividing the web into two parts longitudinally. The devices are not, however, adapted to the making of postal and other cards, where each piece or card must be regular and exactly of a determined size.

This invention consists in mechanism for severing transversely one or more sheets, strips, or webs of card-board or other material as it is fed forward continuously,in which the transverse shear is, while cutting, carried forward with the material to be divided, in combination with cutters for slitting or longitudinally dividing one or more sheets or webs into strips, which are then divided by said mechanism.

The invention consists, also, in transverseclit-ting mechanism comprising, in combination, a reciprocating shear-frame, a fixed and a movable shear-blade, carried by said frame, and one or more cranks and connections independent of the devices for reciprocating the shear-frame, for operating the movable shearblade, and alsoin the construction and combination of parts in the machine, as hereinafter more fully described, and set forth in the claims.

The transverse-cutting mechanism, comprising the elements enumerated, can'be used in connection with printing-cylinders and other devices acting upon a continuouslymoving strip or sheet.

In the improved machine the speed is but little or not at all diminished from that of the usual slitting-machines by the addition of the transverse-cutting mechanism.

In'order that the invention and the manner of carrying it into effect may be well understood, the same will now be described in connection with the accompanying drawings, which form a part of this speciiication. l

Figure 1 is a plan view of a machine for dividing card-board into squares constructed in accordance with this invention g Fig. 2, aview in vertical section; Fig. 3, a view in side elevation, partly in section 5 Fig. 4, a partial view in perspective of the transverse shear; andFig.

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5, views in front and edge elevation, illustrating the preferred means for supporting the movable transverse shear-blade, so as to avoid friction.

A is the supporting-frame; B B', upper and lower shafts, havin gbearin gs in said frame and carrying the rotary cutters b b for dividing the sheet into strips C C', two pairs of feedrollers for controlling the sheet in its passage between said cutters; and D, a table for sustaining the pile of sheets, which are to be passed one at a time through the machine. These parts may be of any ordinary or suitable construction.

E represents an additional pair of feed-rollers, which, like the other two pairs, have their bearings in the supporting-frame, and they are revolved at the same speed as the other rollers.

Between the feed-rollers C and E are placed the transverse cutters or shears F F', F being the upper and F the lower cutter or blade. Both of them are carried by a reciprocating sheanfranie, G. This frame, as shown, consists of a plate, g, which moves in guides a attached to Ithe machine-frame, and an upright part, g', which supports the cutters. tis represented as operated by a heart-shaped cam, H, on the shaft h, the cam working in contact with anti-friction rollers upon pins g2 or projections attached to the bar g3. The bar is fastened at one end to the plate g, and is slotted at the other so as to fit over the shaft h. It is held laterally bythe cam on one side and a collar on the shaft on the other side.

Instead of making the shear-frame reciprocate in right lines or move in guides, it can be supported on pivots and made to vibrate; but in this case the radius should be so great that the arc of vibration does not materially depart from a straight line. One or more cams could be used; but with a vibratory frame one cam on each side, arranged rather nearer the top of the frame than the pivot, so as to avoid as far as possible jarring action, is preferred.

Of the transverse cutters one is lixed to the frame G, being shown as the lower cutter, 'attached to theupright g. The other is movable, and opens and closes upon the fixed cutter to sever the material between them. rIhe edge of the upper cutter is formed like a very broad inverted V, so as to giveashearing cut. (See Fig. 3.)

As represented in Figs. 1 to 4, the movable cutter F is fastened to the bars f, which work against the face of the upright g', and are held by the pressure of springs j", so as to allowa slight yielding to the cutter F. The bent pieces g4, fixed to the upright g', serve as guides to the bars f, and also carry set-screws f2 for adjusting the pressure of the springsj". In Fig. 5 the bars fare held against the up right part of frame Gr by the action of spring f', attached to the latter through the medium of a piece, g, which supports an anti-friction roller, f An anti-friction roller, f6, is also interposed between the bars f and the frame Gr. lated by the screw g5, and the tension of the springf by the screwj'z.

The bars fare connected by links if3 with the levers K, pivoted to the machine-frame. These levers are shown as operated in one direction by the cranks L through the medium of the connecting-rods l, and in the other by the springs M. In practice, however, it is better to operate the movable cutter positively in both directions for obvious mechanical reasons. The connecting rods l are slotted at their lower ends, and only act upon the levers when the pins on said levers are at the top of the slots.

The upward movement of the levers is limY ited by the stops m,f1xed to the machine-frame. rFliese stops and the other parts are so'arran ged that the cutter F is brought to rest after it has risen sufficiently to clear the card-board or other material fed through the machine, and when the cranks L have reached the middle of their upward stroke the slots in the connecting-rod allow the cranks to continue their revolution unimpeded until the middle of the downward stroke, when the levers are again depressed. The advantage of this arrangement is that there is no unnecessary movement ot the cutter F. It is obvious, however, that the connecting-rod Z could be hinged to the levers K, (the springs M and stops m being dispensed with but the cutter F would then he elevated after it has cleared the work on the return movement of the shear-frame.

The use of a movable cutter of the form shown, with the edge inclined from opposite sides toward the center and operated in right lilies, as described, is attended with advantages over an ordinary pivoted blade, although this could be used in connection with other parts of the invention, in that the action of the cuttin g-ed ge on the card-board on opposite sides of the center is balanced, and that less motion, and consequently less speed, of the cutter is required in severing the material in the limited time allowed.

The cranks L are fixed to the arbors L', journaled in the machine-frame. Secured to the top of the upright g of the shear-frame G is a guide, I, formed of upper and lower plates, t t', between which the material to be severed is passed, and by which it is held during the action of the transverse cutters.

Motion is communicated to the several parts of the machine by means of gearing-such, for example, as shown in Figs.1, 2, and 3. Power may be communicated to the cam-shaft h or the lower cuttershafts, B'.

The operation ofthe machine will be readily understood. After it has been set in motion a sheet of card-board or other material is fed between the first pair of feed-rollers, C, and passes on between the longitudinal rotary cutters or slitters b b', thence to the second pair of feed-rrollers,C, through the guide I and be- The outward movement ofcutter F is regu! IOO IOS

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tween the transverse cutters F F', and through the last pair of feed-rollers, E. As it passes between the rotary cutters b b it is slit into as many longitudinal strips as there are pairs ot' cutters, plus one. These strips are then acted upon by the transverse critters in the following way: The reciprocation of the frame Gis so timed that these cutters,when moving forward in the direction of the feed, have the same speed as the periphery of the feed-rollers, and it is during this forward movement that they close and sever the material, the operation of the movable cutter or shear-blade being effected by the cranks L and connecting-rods l, in the manner already explained. During the cutting, therefore, the shears and material to be cut are stationary with reference to each other. After the strips are severed the shearframe continues to advance at .equal pace with them until the shears open and the movablevcutter or upper shear-blade, F, has cleared itself from the card-board or other material. rlhe shearframe then returns and brings the shears into position for a new cut.

Modifications may be made in the materials, proportions, and mechanical devices employed in the machine without departing' from the spirit of this invention.

Having thus fully explained the said invention and the manner in which the same is or may be carried into effect, what I claim, and desire to secure by Letters Patent, is-

1. The combination of longitudinal cutters or slitters and feeding rollers or devices for feeding continuously one or more sheets or webs of suitable material with a shear-frame,

transverse shear-blades carried by said shearframe, and mechanism, as indicated, for opening and closing said blades, and for advancing them while cutting with a uniform speed corresponding with that of said feed rollers or devices, substantially as described.

2. The combination, with a reciprocating shear-frame, of a fixed and a movable shearblade carried by said frame, and one or more cranks and connected devices, as described, independent of the mechanism4 for reciprocating the shear-frame, for operating said movable shear-blade, substantially as described.

3. The combination, with a reciprocating shear-frame and transverse cutter or shearblade fixed thereto, ofa m ovable cutter or sh earblade working in guides on said frame, links connected with said movable cutter by means ot' hinge-joints, and mechanism, substantially as described, for raising and lowering said cutter or blade through said links, substantially as described.

4. rlhe combination'of the movable shearblade with bars or guide-pieces to which said blade is attached, the upright to which the iixed blade is secured, the spring, the antifriction rollers, and the adj Listing-screws, substantially as described.

In testimony whereofI have signed this specification in the presence of two subscribing Witnesses.

J. DE BEAUVAIS.

Witnesses:

PHILIP MAURO, l. J. HEDRICK.