US2604167A - Punching mechanism for paper webs - Google Patents

Punching mechanism for paper webs Download PDF

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Publication number
US2604167A
US2604167A US19365650A US2604167A US 2604167 A US2604167 A US 2604167A US 19365650 A US19365650 A US 19365650A US 2604167 A US2604167 A US 2604167A
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US
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Grant
Patent type
Prior art keywords
punching
punching mechanism
die
paper webs
paper
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Walter E Oliver
Original Assignee
Walter E Oliver
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18Means for removing cut-out material or waste
    • B26D7/1818Means for removing cut-out material or waste by pushing out
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/202With product handling means
    • Y10T83/2033Including means to form or hold pile of product pieces
    • Y10T83/2037In stacked or packed relation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4766Orbital motion of cutting blade
    • Y10T83/4795Rotary tool
    • Y10T83/483With cooperating rotary cutter or backup
    • Y10T83/4836With radial overlap of the cutting members
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/929Tool or tool with support
    • Y10T83/9411Cutting couple type
    • Y10T83/9423Punching tool
    • Y10T83/9437Shear-type female tool

Description

July 22, 1952 w. E. OLIVER 2,604,167

PUNCHING MECHANISM FOR PAPER WEBS Filed Nov. 2, 1950 F/VGJ I F/G.2

l0 i 7 x5 '2 x vIIVVEIVTOR 9 "Al. TER E. OLIVER T *M r' Patented July 22, 1952 UNITED STATES PATENT OFFICE PUNCHING MECHANISM FOR PAPER WEBS Walter E. Oliver, Quincy, Mass.

Application November 2, 1950, Serial N 0. 193,656

1 Claim. 1

This invention relates to paper punching mechanism for paper or like thin material and the object is to provide a construction capable of rapid operation, and one wherein the punchings will be cleanly severed. While not limited thereto, the construction has found a particular and successful application in the production of forms for autographic registers and the like where long webs or strips of paper are provided at intervals, with holes which provide for the proper feeding of the strips through a register, typewriter or the like, and the registry in such a machine of superposed sections of strip. A standard size for such holes is in diameter.

My invention will be well understood from the following description taken in connection with the accompanying drawings, wherein:

Fig. 1 is an end view of a pair of punching rolls;

Fig. 2 is a fragmentary side view partly in section of the rolls;

Fig. 3 is an enlarged sectional view on line 3-3 of Fig. 1; and

Fig. 4 is a section of the die alone.

In punching long webs of paper at regularly spaced intervals it is convenient to pass a Web or superposed webs through the bite of a pair of punching rolls as shown more or less schematically in Fig. 1, comprising an upp r roll l0, having fixed punches l2 projecting radially therefrom at intervals around the circumference, which punches roll into the openings of suitable dies H in a cooperating roll [6. The path of the work 10 is tangent to the face of the lower roll i6 and the punching operation occurs substantially at the circumferential surface of that roll. It will be apparent that since the punch passes through the paper an exact theoretical operation at the pitch line is not in fact possible. It will also be apparent that when the punch moves down in a curvilinear path from the left in Fig. 1, it enters the female die at its leading edge and then makes a out which gradually follows around the die opening toward the transverse diameter of the latter as the two punching elements approach vertical alignment, as shown 7 having a fixed punch 12 which projects radially therefrom and which is adapted to roll into the die opening I4, the cutting edge of which is disposed substantially flush with the face of the lower roll I6. The female die [4 is of novel form. The cutting edge of the die I at its distal end,

as best seen in Fig. 4, has a suitable clearance provided by the outwardly and proximally flaring surface [8. The area of the die opening is then contracted through an inwardly and proximally flaring surface 20 to a bore 22 of substantial length, the cross sectional area, b, of which bore is slightly less than that, a, of the cutting edge of the die, this bore being open at its proximal end to permit the discharge of punchings therefrom. By way of example, and without limitation to these exact figures, I may say that in the application of my invention to the production of register supplies, I have had good results with a die having an opening .375 inch in diameter, the dimension a in Fig. 4, wherein the diameter of the bore 20 was .372, the dimension 1) in Fig. 4. As a punching 2 is severed from the work w it falls to the distal end of the bore, but being somewhat larger, it cannot pass freely therethrough. A stack of punchings thus accumulates in the die cavity, as shown in Fig. 3, and this stack is then pushed gradually down through the opening 20, the stack being retarded by friction and pressure on its edges so that it sustains the punching which is in the process of being severed substantially at the cutting edge of the die to insure its being cut cleanly throughout the periphery of the edge.

I am aware that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be considered in all respects as illustrative and not restrictive, as is in fact clear in several matters from the description itself. Reference is to be had to the appended claim to indicate those principles of the invention exemplified by the particular embodiment described and which I desire to secure by Letters Patent.

I claim:

Punching mechanism for paper and the like. comprising a male punch and a female die having an opening therethrough which successively comprises an edge portion at its distal end, an outwardly and proximally flaring portion providing a clearance for the edge, an inwardly and proximally flaring portion and a straight-sided portion of uniform cross section and encompassing a cross sectional area slightly less than that encompassed by said edge, all said portions being organized about a common axis and providing for the retardation in said straight-sided portion of a stack of severed punchings which sustains at the edge the punching being severed.

WALTER E. OLIVER.

REFERENCES CITED UNITED STATES PATENTS Name Date Dickerman Aug. 2, 1M9

Number Be. 23,138

US2604167A 1950-11-02 1950-11-02 Punching mechanism for paper webs Expired - Lifetime US2604167A (en)

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Application Number Priority Date Filing Date Title
US2604167A US2604167A (en) 1950-11-02 1950-11-02 Punching mechanism for paper webs

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US2604167A US2604167A (en) 1950-11-02 1950-11-02 Punching mechanism for paper webs

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1100446B (en) * 1955-07-21 1961-02-23 Werner Helmert Method and apparatus for manufacturing a perforating roller pair
US3014412A (en) * 1958-06-25 1961-12-26 Ibm Record perforating apparatus
US3031905A (en) * 1957-06-20 1962-05-01 Daniel B Phillips Cutting device with retainer for cut products in the tool thereof and suction means for stripping said product from retainer
US3075573A (en) * 1959-09-23 1963-01-29 Continental Can Co Apparatus for punching holes or cutouts in thermoplastic sheet material
US3187622A (en) * 1963-04-19 1965-06-08 Olin Mathieson Apparatus for assembly of a primer component with a centerfire cartridge case
US3935770A (en) * 1973-03-15 1976-02-03 L. Schuler Gmbh Punching press with tool exchanging means
US4072074A (en) * 1976-02-13 1978-02-07 Andrea Romagnoli Device for forming orderly arranged groups of packages from a continuous web of packages
US4516450A (en) * 1983-03-07 1985-05-14 Wilson Tool Company Slug-retaining die
US4543865A (en) * 1982-06-15 1985-10-01 Kramski Gmbh Prazisionswerkzeuge-Metallwaren Punch press tool for punching small holes in a strip of sheet metal, and obtaining small punched blanks
US4783066A (en) * 1986-09-02 1988-11-08 Cx Corporation Photographic film stacking device
US5887502A (en) * 1995-09-26 1999-03-30 Max Co., Ltd. Rotary punching device
US20060107721A1 (en) * 2003-04-30 2006-05-25 Masatoshi Oishi Punch for punching sheet metal and apparatus for punching sheet metal having the punch
US9364884B1 (en) * 2013-04-17 2016-06-14 Donald Cooper, Jr. Stamping slug retention recess
US9908210B2 (en) 2012-03-16 2018-03-06 Dtc Products, Inc. Slug retention groove forming machine and method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1100446B (en) * 1955-07-21 1961-02-23 Werner Helmert Method and apparatus for manufacturing a perforating roller pair
US3031905A (en) * 1957-06-20 1962-05-01 Daniel B Phillips Cutting device with retainer for cut products in the tool thereof and suction means for stripping said product from retainer
US3014412A (en) * 1958-06-25 1961-12-26 Ibm Record perforating apparatus
US3075573A (en) * 1959-09-23 1963-01-29 Continental Can Co Apparatus for punching holes or cutouts in thermoplastic sheet material
US3187622A (en) * 1963-04-19 1965-06-08 Olin Mathieson Apparatus for assembly of a primer component with a centerfire cartridge case
US3935770A (en) * 1973-03-15 1976-02-03 L. Schuler Gmbh Punching press with tool exchanging means
US4072074A (en) * 1976-02-13 1978-02-07 Andrea Romagnoli Device for forming orderly arranged groups of packages from a continuous web of packages
US4543865A (en) * 1982-06-15 1985-10-01 Kramski Gmbh Prazisionswerkzeuge-Metallwaren Punch press tool for punching small holes in a strip of sheet metal, and obtaining small punched blanks
US4516450A (en) * 1983-03-07 1985-05-14 Wilson Tool Company Slug-retaining die
US4783066A (en) * 1986-09-02 1988-11-08 Cx Corporation Photographic film stacking device
US5887502A (en) * 1995-09-26 1999-03-30 Max Co., Ltd. Rotary punching device
US20060107721A1 (en) * 2003-04-30 2006-05-25 Masatoshi Oishi Punch for punching sheet metal and apparatus for punching sheet metal having the punch
US9908210B2 (en) 2012-03-16 2018-03-06 Dtc Products, Inc. Slug retention groove forming machine and method
US9364884B1 (en) * 2013-04-17 2016-06-14 Donald Cooper, Jr. Stamping slug retention recess
US20160256911A1 (en) * 2013-04-17 2016-09-08 Donald Cooper, Jr. Stamping Slug Retention Recess and Method
US9789529B2 (en) * 2013-04-17 2017-10-17 Donald Cooper, Jr. Stamping slug retention recess and method

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