US3680419A - Rotary punch device with push-pull chip removal - Google Patents

Rotary punch device with push-pull chip removal Download PDF

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US3680419A
US3680419A US83815A US3680419DA US3680419A US 3680419 A US3680419 A US 3680419A US 83815 A US83815 A US 83815A US 3680419D A US3680419D A US 3680419DA US 3680419 A US3680419 A US 3680419A
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Prior art keywords
punch
roll
aperture
web
chip
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US83815A
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Egbertus P Stoop
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International Business Machines Corp
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International Business Machines Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4475—Tool has motion additional to cutting stroke during tool cycle
    • Y10T83/4478—Tool has additional motion during work dwell

Definitions

  • This invention relates to a device for punching patterns from a web of paper or the like, and relates more specifically to a rotary punch device wherein a punch roll, provided with a hollow punch, cooperates with a back-up roll on the other side of the web.
  • FIG. 1 is an end view, partly in section and partly in outline, of a conventional punching device, wherein the chips cut out are removed through the hollow shaft of the punch roll by means of vacuum;
  • FIG. 2 is a plan view of a web with a detached triangular chip cut from the web to provide beveled edges on cards later to be cut from this web;
  • FIGS. 3A and 3B are enlarged fragmentary views, basically like FIG. 1, respectively depicting the type of chip motion desired and the type of chip motion that actually occurs when a conventional punching device of the type shown in FIG. 1 is used to cut small chips like those in FIG. 2 from the edge of a web;
  • FIG. 4 is an end view, comparable to FIG. 1, but of the improved rotary punch device embodying the invention and showing the motion of a partially cut chip during the initial phase of a punching operation;
  • FIG. 5 is a fragmentary view of a portion of FIG. 4 showing motion of the chip during the final phase of the punching operation
  • FIG. 6 is a side elevational view of the improved rotary punch device including the means for conveying compressed air and vacuum to the respective rolls.
  • FIG. 1 For punching chips from a web of paper or the like, a device may be used of the type diagrammatically illustrated in FIG. 1 which comprises a punch roll 1, having removably fitted therein a cutting punch 2.
  • Cutting punch 2 is a type of recessed hollow punch in which the cut-out chips are conveyed via a central aperture 3 in the punch and a radial duct 4 to a hollow shaft 5.
  • the cut chips 6 (FIG. 2) are moved through hollow shaft 5 to a receptacle (not shown) by suitable means, such as vacuum, supplied from a source (not shown).
  • punch 2 in punch roll 1 cooperates with a back-up roll 8, comprising a steel cylinder which may, if desired, be surrounded with a thin copper layer 8a.
  • a back-up roll 8 comprising a steel cylinder which may, if desired, be surrounded with a thin copper layer 8a.
  • Cutting out is effected by pinching ofi the material between punch 2 and backup roll 8.
  • Copper layer 8a makes it possible for punch 2 to penetrate somewhat into back-up roll 8, better to cut off the fibrous material.
  • punch 2 is made as sharp as possible, a definite minimum wall-thickness is required.
  • the cut chip 6 is fractionally larger than aperture 3 in punch 2. If the cut chips are very minute and the material from which they are cut is fairly rigid, the situation illustrated in FIG. 3B was found to occur (rather than the desired situation illustrated in FIG. 3A). That is, as punch 2 left web 7, chip 6 had not yet sufficiently penetrated into aperture 3; and despite the vacuum applied through the aperture, the chip hung up at 2a (see FIG. 3B) and rebounded and was flung away, especially when the punch device rotated at high speed. This problem was resolved by use of the improved device now to be described.
  • back-up roll 8 is provided with a radial duct or port 9, connected to a source (not shown) of compressed air via a small diameter bore 10 in roll 8, a hollow drive shaft 11, a rotary seal unit 14 and a compressed air line 15 that is connected to said source via a valve 16.
  • Shaft 1 1 drives back-up roll 8' which, in turn, is directly coupled to punch roll 1' by means of a pair of identical gears 12 and 13 so that the rolls rotate in perfect synchronism.
  • Bore 9 is located so that it accurately faces and registers with aperture 3 in punch 2'.
  • a rotary punching device of the type comprising a punch roll with a protruding hollow punch that cooperates with a back-up roll to punch chips from a web of sheet material that is advanced through the nip of said rolls, characterized in that both said rolls are provided with ducts that open through their respective peripheries and are registerable during a punching operation, one of said ducts including the aperture in the hollow punch, and
  • means including respective openings in said rolls communicating with said ducts for conveying fluid under pressure to one of said openings and applying a vacuum to the other of said openings, such that the chip punched out from the web is directed into one of said rolls and removed by a push-pull operation.
  • a device further characterized in that the pressure fluid is conveyed via the opening in the back-up roll and the vacuum is applied via the opening in the punch roll so the chip will be removed by withdrawal through the aperture in the hollow punch.
  • a device further characterized in that the pressure fluid and vacuum cooperate to deflect the initially pierced leading portion of each chip into said aperture prior to complete severance of the chip from the web.
  • a rotary punching device for punching out chips from a web of paper or the like, said device comprising a punch roll comprising a hollow punch element projecting radially from the outer periphery thereof and having an aperture communicating with an internal opening,
  • a back-up roll having a port that opens through the outer periphery thereof and is intermittently registerable with the aperture during a punching operation
  • positive drive means for rotating said rolls in synchronism for causing such intermittent registration of the aperture and port as the web is advanced between said rolls
  • the port and aperture being so configured that as the chip is severed from the web, it will be successively deflected into and then conveyed away from the punch station via said aperture and opening.
  • a device further characterized in that said punch element is so disposed in relation to the web as to cause chips to be cut from one side edge of the web.
  • said means for conveying fluid under pressure includes a hollow drive shaft constantly communicating with an aligned bore provided in the back-up roll and connected to said port, and a rotary seal unit interposed between the drive shaft and fluid supply line.

Abstract

Small chips are removed from a paper web during high speed rotary punching by a push-pull action in which compressed air supplied via a radial port in a hollow back-up roll blows the cut chip into a hollow punch connected via a hollow shaft to a vacuum source for removing chips from the punch station.

Description

United States Patent Stoop 1 Aug. 1, 1972 [54] ROTARY PUNCH DEVICE WITH PUSH- [56] References Cited PULL CHIP REMOVAL UNITED STATES PATENTS [72] Inventor: Egbertus P. Stoop, Amsterdam,
Netherlands 3,209,630 10/1965 McCartan ..83/100 o 3,520,248 7/1970 MacKendrick ..83/98 X [731 Asslgnee= lntematlflmal Bus'ness Machines 3,194,095 7/1965 Buck ..83/100 Amwnk 3,174,428 3/1965 Huck ..83/100 x [22] Filed: Oct. 26, 1970 2,514,659 7/l950 McClung ..83/126 [2!] App! 838l5 Primary Examiner-Donald G. Kelly Attorneyl-lanifin & Jancin and Henry E. Otto, Jr. [30] Foreign Application Priority Data Feb. 19, 1970 Netherlands ..7002316 [57] ABSTRACT Small chips are removed from a paper web during [52] US. Cl ..83/98, 83/216 high speed rotary punching by a push-pull action in [51] Int. Cl. ..B26d 7/06 which compressed air supplied via a radial port in a [58] Field of Search ..83/98-100, 126 hollow back-up roll blows the cut chip into a hollow punch connected via a hollow shaft to a vacuum source for removing chips from the punch station.
6 Claims, 6 Drawing Figures PATENTEDAUG 1 I972 SHEET 1 [IF 2 F I G 2 PRIOR ART FIG 3B FIG I PRIOR ART EGBERTUS F! STOOP BY A7'7' ENE) PATENTEDAus I I972 3.680.419
sum 2 or 2 L FIG. 6
ROTARY PUNCH DEVICE WITH PUSH-PULL CHIP REMOVAL This invention relates to a device for punching patterns from a web of paper or the like, and relates more specifically to a rotary punch device wherein a punch roll, provided with a hollow punch, cooperates with a back-up roll on the other side of the web.
BACKGROUND OF THE INVENTION It is common to provide a punch roll having a hollow punch and ducts communicating therewith so that parts or chips punched from a moving web may be withdrawn from the punch station by means of vacuum through a hollow shaft or by mechanical removing means, such as a conveyor screw. However, when very minute chips are punched from a rather rigid material, particularly along the edges of the web, and the punch and web are operated at fairly high speed, the chips cut out tend to fly off instead of being removed by way of the aperture in the hollow punch. This can be very troublesome, especially if near the punch station other operations are also carried out on the web, such as printing or applying glue.
SUMMARY OF THE INVENTION Applicant has discovered that this problem can be eliminated by providing an improved rotary punch device wherein the back-up roll has apertures alignable with the apertures in the hollow punch of the punch roll, and the apertures in the back-up roll are connected to a source of compressed air. Thus, while the chips are only partially cut out, their severed parts are deflected into the punch aperture; and hence as soon as the chips have been completely cut from the web, they are quickly removed through the aperture in the punch, preferably by a push-pull action in which suction is applied via the hollow punch shaft to assist in chip disposal.
Other objects and advantages will become apparent from the following more detailed description of the invention and from the accompanying drawings, wherein:
FIG. 1 is an end view, partly in section and partly in outline, of a conventional punching device, wherein the chips cut out are removed through the hollow shaft of the punch roll by means of vacuum;
FIG. 2 is a plan view of a web with a detached triangular chip cut from the web to provide beveled edges on cards later to be cut from this web;
FIGS. 3A and 3B are enlarged fragmentary views, basically like FIG. 1, respectively depicting the type of chip motion desired and the type of chip motion that actually occurs when a conventional punching device of the type shown in FIG. 1 is used to cut small chips like those in FIG. 2 from the edge of a web;
FIG. 4 is an end view, comparable to FIG. 1, but of the improved rotary punch device embodying the invention and showing the motion of a partially cut chip during the initial phase of a punching operation;
FIG. 5 is a fragmentary view of a portion of FIG. 4 showing motion of the chip during the final phase of the punching operation; and
FIG. 6 is a side elevational view of the improved rotary punch device including the means for conveying compressed air and vacuum to the respective rolls.
DESCRIPTION For punching chips from a web of paper or the like, a device may be used of the type diagrammatically illustrated in FIG. 1 which comprises a punch roll 1, having removably fitted therein a cutting punch 2. Cutting punch 2 is a type of recessed hollow punch in which the cut-out chips are conveyed via a central aperture 3 in the punch and a radial duct 4 to a hollow shaft 5. The cut chips 6 (FIG. 2) are moved through hollow shaft 5 to a receptacle (not shown) by suitable means, such as vacuum, supplied from a source (not shown).
To cut the chips 6 from web 7, punch 2 in punch roll 1 cooperates with a back-up roll 8, comprising a steel cylinder which may, if desired, be surrounded with a thin copper layer 8a. Cutting out is effected by pinching ofi the material between punch 2 and backup roll 8. Copper layer 8a makes it possible for punch 2 to penetrate somewhat into back-up roll 8, better to cut off the fibrous material.
Although punch 2 is made as sharp as possible, a definite minimum wall-thickness is required. In consequence the cut chip 6 is fractionally larger than aperture 3 in punch 2. If the cut chips are very minute and the material from which they are cut is fairly rigid, the situation illustrated in FIG. 3B was found to occur (rather than the desired situation illustrated in FIG. 3A). That is, as punch 2 left web 7, chip 6 had not yet sufficiently penetrated into aperture 3; and despite the vacuum applied through the aperture, the chip hung up at 2a (see FIG. 3B) and rebounded and was flung away, especially when the punch device rotated at high speed. This problem was resolved by use of the improved device now to be described.
In the improved punch device embodying the invention and shown in FIGS. 4-6, like reference numerals except primed are used to denote structure which is similar to that shown on the conventional device illustrated in FIG. 1. According to the invention, back-up roll 8 is provided with a radial duct or port 9, connected to a source (not shown) of compressed air via a small diameter bore 10 in roll 8, a hollow drive shaft 11, a rotary seal unit 14 and a compressed air line 15 that is connected to said source via a valve 16. Shaft 1 1 drives back-up roll 8' which, in turn, is directly coupled to punch roll 1' by means of a pair of identical gears 12 and 13 so that the rolls rotate in perfect synchronism. Bore 9 is located so that it accurately faces and registers with aperture 3 in punch 2'.
-As the chip 6 is partially cut out (see FIG. 4), compressed air supplied via port 9 will start to deflect it into the punch aperture 3. As soon as the chip is completely out out, it will rapidly be driven into aperture 3 by a combination push-pull action (see FIG. 5). It has been found in practice that jamming or hang-up of the chips is now prevented and they are neatly withdrawn and removed form the punch station.
It will be apparent that various changes may be made without departing from the spirit, scope and teaching of the present invention. Accordingly, the device herein disclosed is to be considered merely as illustrative, and the scope of the invention is to be limited only as specified in the claims.
What is claimed is:
l. A rotary punching device of the type comprising a punch roll with a protruding hollow punch that cooperates with a back-up roll to punch chips from a web of sheet material that is advanced through the nip of said rolls, characterized in that both said rolls are provided with ducts that open through their respective peripheries and are registerable during a punching operation, one of said ducts including the aperture in the hollow punch, and
means including respective openings in said rolls communicating with said ducts for conveying fluid under pressure to one of said openings and applying a vacuum to the other of said openings, such that the chip punched out from the web is directed into one of said rolls and removed by a push-pull operation.
2. A device according to claim 1, further characterized in that the pressure fluid is conveyed via the opening in the back-up roll and the vacuum is applied via the opening in the punch roll so the chip will be removed by withdrawal through the aperture in the hollow punch.
3. A device according to claim 2, further characterized in that the pressure fluid and vacuum cooperate to deflect the initially pierced leading portion of each chip into said aperture prior to complete severance of the chip from the web.
4. A rotary punching device for punching out chips from a web of paper or the like, said device comprising a punch roll comprising a hollow punch element projecting radially from the outer periphery thereof and having an aperture communicating with an internal opening,
a back-up roll having a port that opens through the outer periphery thereof and is intermittently registerable with the aperture during a punching operation,
positive drive means for rotating said rolls in synchronism for causing such intermittent registration of the aperture and port as the web is advanced between said rolls,
means for conveying fluid under pressure to the port in said back-up roll, and
means for applying vacuum to the aperture via the opening in the punch roll,
the port and aperture being so configured that as the chip is severed from the web, it will be successively deflected into and then conveyed away from the punch station via said aperture and opening.
A device according to claim 4 further characterized in that said punch element is so disposed in relation to the web as to cause chips to be cut from one side edge of the web. 6. A device according to claim 4, wherein said means for conveying fluid under pressure includes a hollow drive shaft constantly communicating with an aligned bore provided in the back-up roll and connected to said port, and a rotary seal unit interposed between the drive shaft and fluid supply line.

Claims (5)

1. A rotary punching device of the type comprising a punch roll with a protruding hollow punch that cooperates with a back-up roll to punch chips from a web of sheet material that is advanced through the nip of said rolls, characterized in that both said rolls are provided with ducts that open through their respective peripheries and are registerable during a punching operation, one of said ducts including the aperture in the hollow punch, and means including respective openings in said rolls communicating with said ducts for conveying fluid under pressure to one of said openings and applying a vacuum to the other of said openings, such that the chip punched out from the web is directed into one of said rolls and removed by a push-pull operation.
2. A device according to claim 1, further characterized in that the pressure fluid is conveyed via the opening in the back-up roll and the vacuum is applied via the opening in the punch roll so the chip will be removed by withdrawal through the aperture in the hollow punch.
3. A device according to claim 2, further characterized in that the pressure fluid and vacuum cooperate to deflect the initially pierced leading portion of each chip into said aperture prior to complete severance of the chip from the web.
4. A rotary punching device for punching out chips from a web of paper or the like, said device comprising a punch roll comprising a hollow punch element projecting radially from the outer periphery thereof and having an aperture communicating with an internal opening, a back-up roll having a port that opens through the outer periphery thereof and is intermittently registerable with the aperture during a punching operation, positive drive means for rotating said rolls in synchronism for causing such intermittent registration of the aperture and port as the web is advanced between said rolls, means for conveying fluid under pressure to the port in said back-up roll, and means for applying vacuum to the aperture via the opening in the punch roll, the port and aperture being so configured that as the chip is severed from the web, it will be successively deflected into and then conveyed away from the punch station via said aperture and opening. A device according to claim 4 further characterized in that said punch element is so disposed in relation to the web as to cause chips to be cut from one side edge of the web.
6. A device according to claim 4, wherein said means for conveying fluid under pressure includes a hollow drive shaft constantly communicating with an aligned bore provided in the back-up roll and connected to said port, and a rotary seal unit interposed between the drive shaft and fluid supply line.
US83815A 1970-02-19 1970-10-26 Rotary punch device with push-pull chip removal Expired - Lifetime US3680419A (en)

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NL (1) NL7002316A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724980A (en) * 1970-12-19 1973-04-03 Briem Hengler Cronemeyer Apparatus for cutting out forms from a ribbon of dough
US3998116A (en) * 1975-03-03 1976-12-21 F. L. Smithe Machine Company, Inc. Apparatus for removing cut panels from sheet material
US4037499A (en) * 1974-01-26 1977-07-26 Conwed Corporation Method and apparatus for perforating fibrous board surfaces in non-repetitive patterns
US4333781A (en) * 1980-02-19 1982-06-08 Meulenberg Daniel R Method and apparatus for manufacturing decals
US4599926A (en) * 1984-07-16 1986-07-15 Preston Engravers, Inc. Rotary cutting dies with vacuum assist to cut and clear waste
US4613321A (en) * 1985-09-06 1986-09-23 Preston Engravers, Inc. Diecutting roll system with improved scrap disposal capability
US4660353A (en) * 1985-06-17 1987-04-28 R. A. Jones & Co. Inc. Intermittent motion cartoning apparatus for cartoning liquid-filled pouches
US4693152A (en) * 1986-06-06 1987-09-15 Mobil Oil Corporation Rotary tube punching arrangement with tumbling punch and method for punching holes into a film web
US4732065A (en) * 1986-09-08 1988-03-22 Mobil Oil Corporation Rotary serrated tube punch with internal back-up for a film web and method of punching holes therewith
US4759246A (en) * 1986-06-06 1988-07-26 Mobil Oil Corporation Tumbling hole punch and method for punching holes into a moving web material
US4993293A (en) * 1989-06-06 1991-02-19 Joergen Gerhardt Apparatus for the removal of material punched out from material in sheet form
US5127292A (en) * 1990-10-22 1992-07-07 Vinod Kapoor Apparatus and method for cutting and removing thin transverse strips from a moving web
US5806399A (en) * 1994-09-21 1998-09-15 Koenig & Bauer-Albert Aktiengesellschaft Counter-strip for a perforating device
US5906702A (en) * 1995-02-07 1999-05-25 Precision Dynamics Corporation Method and apparatus for removing profiles
US20050241445A1 (en) * 2002-05-06 2005-11-03 Schaede Johannes G Machine for cutting openings in a substrate
US20140260847A1 (en) * 2013-03-14 2014-09-18 Kharis Schneider Quick cutter
US9902083B2 (en) 2010-09-30 2018-02-27 The Procter & Gamble Company Absorbent article substrate trim material removal process and apparatus
CN112249790A (en) * 2020-09-29 2021-01-22 世星科技股份有限公司 Roller cutter die cutting self-falling type equipment and technological process thereof
US11123893B2 (en) 2018-07-18 2021-09-21 Roto-Die Company, Inc. Vacuum assist cutting and anvil cylinders
US11511452B2 (en) * 2017-04-25 2022-11-29 Tism Co., Ltd Punching device

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US4037501A (en) * 1976-06-21 1977-07-26 Didde-Glaser, Inc. Through-the-cylinder slug out device
GB8516674D0 (en) * 1985-07-02 1985-08-07 Unilever Plc Cutting elongated strand of soft confection material
US4913013A (en) * 1987-04-14 1990-04-03 Mobil Oil Corporation Rotary cutting apparatus
US4982637A (en) * 1987-04-14 1991-01-08 Mobil Oil Corporation Rotary cutting apparatus
EP0288182A1 (en) * 1987-04-14 1988-10-26 Mobil Oil Corporation Rotary cutting apparatus
US4914995A (en) * 1987-04-14 1990-04-10 Mobil Oil Corporation Rotary cutting apparatus
DE102017119918A1 (en) * 2017-08-30 2019-02-28 Karl Marbach Gmbh & Co. Kg Technology for punching small parts

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US3520248A (en) * 1968-09-30 1970-07-14 Procter & Gamble Chip frying machine

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US2514659A (en) * 1946-04-19 1950-07-11 Eugene F Mcclung Punch press
US3174428A (en) * 1960-05-12 1965-03-23 William F Huck Rotary web processing apparatus
US3209630A (en) * 1961-12-22 1965-10-05 Ibm Rotary punching device
US3194095A (en) * 1962-12-31 1965-07-13 Lloyd P Buck Punch confett remover
US3520248A (en) * 1968-09-30 1970-07-14 Procter & Gamble Chip frying machine

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724980A (en) * 1970-12-19 1973-04-03 Briem Hengler Cronemeyer Apparatus for cutting out forms from a ribbon of dough
US4037499A (en) * 1974-01-26 1977-07-26 Conwed Corporation Method and apparatus for perforating fibrous board surfaces in non-repetitive patterns
US3998116A (en) * 1975-03-03 1976-12-21 F. L. Smithe Machine Company, Inc. Apparatus for removing cut panels from sheet material
US4333781A (en) * 1980-02-19 1982-06-08 Meulenberg Daniel R Method and apparatus for manufacturing decals
US4599926A (en) * 1984-07-16 1986-07-15 Preston Engravers, Inc. Rotary cutting dies with vacuum assist to cut and clear waste
US4660353A (en) * 1985-06-17 1987-04-28 R. A. Jones & Co. Inc. Intermittent motion cartoning apparatus for cartoning liquid-filled pouches
US4613321A (en) * 1985-09-06 1986-09-23 Preston Engravers, Inc. Diecutting roll system with improved scrap disposal capability
US4693152A (en) * 1986-06-06 1987-09-15 Mobil Oil Corporation Rotary tube punching arrangement with tumbling punch and method for punching holes into a film web
US4759246A (en) * 1986-06-06 1988-07-26 Mobil Oil Corporation Tumbling hole punch and method for punching holes into a moving web material
US4732065A (en) * 1986-09-08 1988-03-22 Mobil Oil Corporation Rotary serrated tube punch with internal back-up for a film web and method of punching holes therewith
US4993293A (en) * 1989-06-06 1991-02-19 Joergen Gerhardt Apparatus for the removal of material punched out from material in sheet form
US5127292A (en) * 1990-10-22 1992-07-07 Vinod Kapoor Apparatus and method for cutting and removing thin transverse strips from a moving web
US5806399A (en) * 1994-09-21 1998-09-15 Koenig & Bauer-Albert Aktiengesellschaft Counter-strip for a perforating device
US5906702A (en) * 1995-02-07 1999-05-25 Precision Dynamics Corporation Method and apparatus for removing profiles
US20050241445A1 (en) * 2002-05-06 2005-11-03 Schaede Johannes G Machine for cutting openings in a substrate
US9902083B2 (en) 2010-09-30 2018-02-27 The Procter & Gamble Company Absorbent article substrate trim material removal process and apparatus
US20140260847A1 (en) * 2013-03-14 2014-09-18 Kharis Schneider Quick cutter
US9717254B2 (en) * 2013-03-14 2017-08-01 Kharis Schneider Quick cutter
US11511452B2 (en) * 2017-04-25 2022-11-29 Tism Co., Ltd Punching device
US11123893B2 (en) 2018-07-18 2021-09-21 Roto-Die Company, Inc. Vacuum assist cutting and anvil cylinders
CN112249790A (en) * 2020-09-29 2021-01-22 世星科技股份有限公司 Roller cutter die cutting self-falling type equipment and technological process thereof

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DE2054474B2 (en) 1973-11-22
CA927741A (en) 1973-06-05
GB1291791A (en) 1972-10-04
NL7002316A (en) 1971-08-23
DE2054474A1 (en) 1971-09-09
DE2054474C3 (en) 1974-06-20
FR2078164A5 (en) 1971-11-05

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