US2477288A - Gutting die for printing presses of the platen type - Google Patents

Description

July26, 1949. w QCRQSSLEY 2,477,288 I I CUTTING DTE FOR PRINTING PRESSES OF THE PLATEN TYPE Filed Feb. 11, 1946 3 Sheets-Sheet 1 JNVENTOR M fl/Mm a Cross A519 ATTORNEY J ly 26, 1949- w. o. CROSSLEY 2,477,288 I CUTTING DI E FOR PRINTING PRESSES OF THE PLATEN TYPE Filed Feb 11, 1946 3 Sheets-Sheet 2 INVENTOB VV/W/am 0 C/"oss/ey Filed Feb. 11, 1946 July 26, 1949.

W. O. CROSSLEY CUTTING DIE FOR PRINTING PRESSES OF THE PLATEN TYPE 3 Sheets-Sheet 3 INVENTOR. VV/W/am 0. 6f'055 /eg I v avg g,

ATTORNEY Patented July 26, 1949 CUTTING DIE FOR, PRINTING =BRESSES .OF DHE. PLATEN TYPE Williamz'O': Gi'osslemTTMedo, Ohio:

Application February 11, 1346,,Seri2iLNo.46,809-

This invention relates to a combination in a printingformor plate and. a die and'press ofthe platen type in which the inking. rollers. do not contact-the cutting'or impressing die in the operation of the press, therebyavoiding 'cutting'of the inking rollers and also avoiding. inking'of. the die cuttingedge.

An object of the-invention is. togprovide in a machine of the classindicated, anarrangement inwhich agreatnumber-of different die impressing elements-such as; for example, a cutting rule, perforating; scoring, or-creasing rule may be=readily applied to meet the requirements for die" wheninking, but whenthe-pressis operated -the-same acts to print and'to effect a die impression-in one operation of the press.

This invention, therefore, relatesto the positionofidie which -is outsideof the course of ink roller travel and between the platen and the press bed and separate and apart from the chase in whichithe usual conventional cutting die is now-locked up when -in-use.

The object of the invention is to--provide an improved cuttingdieadapted to bemovably secured to the gripper arms of" aprinting press, whereby the paper or cardboard to be operated upon may be die-cut simultaneously with the printing of the same without inking the cutting die and without damage'to the inkingrollers.

Another object has to do with the method, of securing the component operationalparts of the cutting die to its flat sheet-metal base, which means is obtained by, the use of, a suitable adhesive, by so1cleri11g,welding, brazing, or by, similar means; said means allowing for extreme maneuverability inplacing into any desired positionthe cutting rule pieces and other relatedoperational die parts, after formingbyrbending, and mounting saidcutting die operational parts; upon its fiat sheet-metal base.

Still another object is the use of: auxiliary-operations such asperforating, scoring, creasing, or embossing, Withdie-cutting and printing, or combinations of two or more of these operations simultaneously with printing Without inking the die form and without damage to the inking rollers, but allowing the inking of the printing form, and with one impression. action of, the printing 2 press without the use of specially prepared-imachined" parts.

Still another "object is' the savings'ingcostsusually incurred-when ordering the cutting die made outside the plant; wliichidiecannow be-"mad'e' Within a printing plant by "anyone without previous experience, thus-addingtothe profits-of the 'plant as well'as making rushorderspossible;

Still another object of this inventionis; the savings in production costs f by the elimination of expensive; equipment generally used in die construction; such'asa;jig saw, a'rule benderyand special rule cutter: Cutting'dies'made'by-"this improved method can be easily made-byutilizing 'theregular slug cutter 'foundin all printingshops for 'cuttihg the small special cutting rule; avise anda pair of-smal1*nosed* pliers can-be usedfor bending or forming the cutting rule; a; pair of tin shears for-cutting thedie-sheetemetar base upon which the cutting "die operational parts are secured as hereinafterset forth-and the die base is secured *to the gripper" arms, as hereinafter described and specifically illustrated.

Another object ofthe 4 invention is the accomplishment ofa -simple means ofmake-ready of the die cutting form= or cutting die. Since the cutting *die is readilyaccessible on the gripper arm; it. is" no longennecess-ary to removethechase ankle-apply make -ready patches: behind the die block because the make-ready patches" can be :moreeasily applied; and better spotted in I the :correct places: by applying patches directly to the -r.ear:.sidesor bottom ofrthe cuttingdie on the die sheetz-metalcbase. Thisdsfaster, more accurate andiw-ithzcarma kiss fimpressionz is possible, thus adding life; t -Ithecutting; die .by keeping the cut- 'ting..edge of; the die sharp-much longer.

- Still anotlren object-oi this invention is the possible: usegof; these;.cuttingidies in' the ordinary 1165: press, if: desiredpby tacking or 1 otherwise securing; to awood: block of? predetermined height, andrlocking; the block with thedie on it in a chase and.- operating; from the press bed as usual.

Stilhanothen-object -ofithis invention is the sim- -pleemeanszemployed-ifor'firmly,butmovably securing thecutting die tothe gripper arm by making useofthe-extendedportion of: the cutting die sheet-"metalrbase; This eliminates the use of specially. manufacturedparts requiring machine shop practice as well as the use of skilled labor in; manufacturing these: parts, .thus reducing to a minimum thcsllse off materials as well as labor costs. It. makes. unnecessary. the many. sizes and variedtypes of.holders whichwould be necessary to,.hold.the E numerous sizes, and; shapesof tab cutters, punches, perforators, scoring and creasing rule forms as well as the varied shapes and sizes of embossing dies, thus attaining desirable simplification and a minimum of expense.

Further objects and advantages are within the scope of this invention such as relate to the arrangement, operation, and fimction of the related elements of the structure, to various details of construction and to combinations of parts, elements per se, and to economics of manufacture and numerous other features as will be apparent from a consideration of the specification and drawing of a form of the inventionywhich may be preferred, in which:

Figure I is a diagrammatic view showing the press open and illustrating the position of my die;

Figure II is a similar view showing the press closing and the relative position of the inking rollers, die and platen;

. 'F'igure III is a View showing the press closed;

Figure IV is an enlarged horizontal cross sectional view with the press closed;

- Figure V is an enlarged perspective view with the die shown in my invention;

Figure VI is a, detail partly in section of one means of supporting my die;

Figure VII is a sectional view through the die and supporting plate;

- Figure VIII is a perspective view of a modification in which both the printing and die operations are completed in one operation of the press in one run of the work;

Figure IX is an enlarged isometric view showing the action of the arrangement of Figure VIII.

In one embodiment of my invention, I provide a die It carried by one of the grippers [2 of the press as shown in Figures IV, V, VI and VII, where I have shown a platen type press with a chase I5 carried in the press bed 16, a pivoted platen I1, and the usual grippers l2 and I3.

One satisfactory die for carrying out my invention includes a carrying plate 20, bent in an offset manner as shown in Figure VI, to be suitably secured as by split rivets (see Figure VII) as indicated at 22 to the gripper [2 on one end and carry at the other end, the actual cutting or impressing rule 24 of the die itself, surrounding which is a resilient, releasing meansas a rubber work removing pad 26.

Instead of making the die ill of the entire thickness to extend from the bed of the press to the platen when the press is closed, in my invention I use a suitable backing means 25 located on the bed and locked up in the chase IS with the type 28 as indicated in Figure V. Then the die member ID proper may be formed by using thin sheet metal piece 20 referred to, and the cutting or impressing rule 24 is less than the height of the type 28. This working member or cutting rule 24 is suitably secured to the metal piece or carrying plate 20. In an embodiment of my invention, the die is constructed upon or built up upon and attached to the thin flat sheet base 20 of sheet metal or other suitable material by a bonding agent of suitable material which may be solder, and I also employ brazing, weld ing, or the use of glue or other suitable adhesive, or any other form of bonding agent of suitable character.

In the arrangement shown in Figure IV where the press is shown in closed position, the parts are illustrated in detailed relation to each other, just having effected an impression or out upon the material being acted upon such as paper,

plate 3| at the top over the type 28 into their lower position. As the press begins to close as shown in Figure II, the rollers 30 pass upward over the type and on in Figure III, reach the top of the-ink plate 3| when the press becomes fully closed as in Figure III and also in Figure IV.

- In both of Figures I and II, it will be seen that when the rollers 39 pass back and forth over the press bed on the type, the die I0 is always spaced from the same. It is only when the rollers are above the chase and platen that the die [0 comes in contact with the press backing in the chase l5, and then the closing of the press causes the platen I! to eifect an impression or cutting action as shown in Figure III.

In using the die form with a printing form in the embodiment of my invention shown in Figures I to VII, I cut stock double in most cases, though not always, and then look up printing form in one-half of the chase and blank backing material in the other half. I then place a piece of protecting sheet metal beneath the tympan under the die to protect the platen and make ready as usual. I proceed to print and cut all stock and reverse the stock and feed again. This gives a complete die cut and printed job 2-up of the work and turn manner. As stated before, I prepare the die form previously with an ejection means or material of rubber, cork, or other resilient material which acts to free the stock being die-cut from the. cutting die after the impression.

Should the run be a short one and the ink not thoroughly dry when ready to reverse the sheet, then some glue must be put on the ejection material and a piece of coarse sandpaper or emery cloth stuck to it and let dry. Then I pull .an impression and the die will cut through the sandpaper and you are ready to feed the second time. When dry, I then cut the sheet in two parts.

In the embodiment illustrated in Figures VIII and IX, I have shown means whereby the printing and die action on one single sheet is made at one operation, the printing and die operation both acting simultaneously so that the work in this case is run only once through the press. Thus, in certain classes of work, as by way of example, printing a ticket with a hole and slot die cut in the same, I provide the type form in the chase with an opening 35, slot 3 and "shape the ticket by cut away top corners 38 and 39. In this case, the die 48 which may be carried by either gripper arm [3 is shown in Figure IX, or it can be attached from top or bottom by suitable extension arms or metal strips. Here, the die 48 has a cutting rule 45 shaped as indicated above and is secured to a metal carrying plate 43 which in turn is riveted or otherwise suitably attached to the gripper I3. The releasing rubber pad 45 can be made of other material, such as cork, or metal spring, or of any suitable material to effect the release of stock after an operation.

In Figures VIII and IX, as the press is open when the inking occurs, the rollers will not at any time contact the die or cutting rule 4!. As the press closes for an impression, the grippers, of course, move toward the stock as the platen comes up. As the grippers move toward closed position, the die 40 enters into the opening 35, slot 36, et cetera, and seats down into the base 25' of the type form 28. As the type form, et cetera, has been properly locked up in the chase and an impression is pulled on the tympan, then the die cutting form 49 is registered with this impression thus the die 40 will be properly positioned in place. Then as the platen I! and type form 28 and die form 40 fully engage the ticket" will be both printed upon the die cut as desired by the die 49 in the one closing operation of the press. Upon release on opening of the press, the resilient pad 45 releases the ticket or work from the die since the closing of the press has compressed the pad 45 in this operation as in the other embodiment of my invention described above.

What I claim is:

1. In a printing press having a gripper arm; a die adapted when the press is on impression to operate as a cutting, scoring, perforating or creasing rule, said die including a rule superimposed upOn and firmly secured to a die carrying member by a suitable adhesive means in such a manner as to facilitate the proper positioning of the various actual operational parts of the die proper to a predetermined position; said die carrying member having a portion extended beyond the limit of the die proper to adjustably and firmly secure the die to the gripper arm, said die carrying member having holes in the extended portion thereof cooperating with receiving holes in the gripper arm and split rivets inserted therethrough to clinch the die and die base firmly to the gripper arm.

2. In a printing press of the platen type which has a pivoted movable platen, a stationary type receiving chase, a die base member carried by the chase; a die cooperating with said base member when the press is on impression, and means to support said die comprising a sheet metal plate upon which the operating element of the die is superimposed; said sheet-metal base forming means for adjustably attaching the same to the gripper arm by an extended portion on said sheet-metal base extending beyond the die proper; said extended portion of the sheet metal plate having openings therein cooperating with similar openings in the gripper arm and through which openings are arranged attachable and detachable means for securing said sheet metal base firmly to the gripper arm.

3. In a printing press of the bed and platen type wherein a gripper arm is pivotally mounted for movement with said platen, a removable die unit having a flat portion adapted to be attached to saidggripper arm, said unit having a die supporting portion extending laterally from said fiat portion, said laterally extending portion having a rule removably attached thereto and adapted to be brought into operative relation with a sheet held on said platen by said gripper arm.

WILLIAM O. CROSSLEY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS

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