EP0876246B1 - Arbre avec des inserts de decoupe a l'emporte-piece pour matrice de coupe rotative et matrice de coupe - Google Patents

Arbre avec des inserts de decoupe a l'emporte-piece pour matrice de coupe rotative et matrice de coupe Download PDF

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Publication number
EP0876246B1
EP0876246B1 EP96945072A EP96945072A EP0876246B1 EP 0876246 B1 EP0876246 B1 EP 0876246B1 EP 96945072 A EP96945072 A EP 96945072A EP 96945072 A EP96945072 A EP 96945072A EP 0876246 B1 EP0876246 B1 EP 0876246B1
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EP
European Patent Office
Prior art keywords
die
shaft assembly
knife
knife shaft
cutting edge
Prior art date
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
Application number
EP96945072A
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German (de)
English (en)
Other versions
EP0876246A1 (fr
Inventor
Stefan Alojzy Mysliwiec
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kimberly Clark Worldwide Inc
Kimberly Clark Corp
Original Assignee
Kimberly Clark Worldwide Inc
Kimberly Clark Corp
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Publication of EP0876246A1 publication Critical patent/EP0876246A1/fr
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Publication of EP0876246B1 publication Critical patent/EP0876246B1/fr
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2607—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member for mounting die cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4472—Cutting edge section features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4481—Cutters therefor; Dies therefor having special lateral or edge outlines or special surface shapes, e.g. apertures

Definitions

  • This invention relates to a knife shaft assembly according to the preamble of claim 1 (see, for example, DE-A-14 36 912) for the rotary die cutter and the die cutter itself.
  • a rotary die cutter includes a rotatable anvil roll which cooperates with a rotatable knife shaft assembly.
  • the knife shaft assembly has an outer circumference with at least one die cutter associated therewith.
  • the knife shaft assembly cooperates with the anvil roll to form a nip through which a web of material can pass. As a web of material passes between the nip, the die cutter will cut the material into a predetermined shape.
  • Rotary die cutters are used in many different industries to cut many different types of material.
  • rotary die cutters can be employed to cut paper, cardboard, plastic, laminates formed of two or more layers, absorbent materials such as wood pulp fluff, webs formed from natural or synthetic fibers, cellulose fluff, tissue, cotton, rayon and various other types of woven and nonwoven materials.
  • Rotary die cutters are particularly useful in cutting a plurality of layers of different material which have been assembled to form an absorbent article such as a sanitary napkin or a pantiliner.
  • Such products are normally constructed, from top to bottom, of a liquid-permeable cover sheet, one or more absorbent layers, a liquid-impermeable baffle, a layer of garment attachment adhesive and a removable peel strip.
  • the various layers are normally bonded together by a construction adhesive and the article usually has a total thickness of between 0.26 cm (0.1 inches) to 2.54 cm (1.0 inch).
  • Each replaceable and/or interchangeable die cutting insert has a unique configuration and includes mounting means for properly securing it to the outer circumference of a knife shaft assembly.
  • This invention relates to a knife shaft assembly to claim 1.
  • the general object of this invention is to provide a knife shaft assembly having replaceable and/or interchangeable die cutting insert attached thereto which can be removed without requiring the inserts to be reground in order to obtain the right clearance nip between the anvil roll and the knife shaft assembly.
  • a further object of this invention is to provide a rotary die cutter having a rotatable anvil roll mating with a rotatable knife shaft assembly to form a nip therebetween and having one or more replaceable and/or interchangeable die cutting inserts mounted about its outer circumference of the knife shaft.
  • a rotary die cutter 10 which includes a rotatable anvil roll 12 cooperating with a rotatable knife shaft assembly 13.
  • the anvil roll 12 can be constructed of a ferrous or non-ferrous metal and should have a smooth surface.
  • the anvil roll 12 can be formed from a material which is compressible, such as neoprene rubber or from a non-compressible material, such as steel. For most applications, it is preferred that the anvil roll 12 be a metal roll.
  • the knife shaft assembly 13 includes a die shaft 14 with an outer circumference 16 and at least one replaceable and/or interchangeable die cutting insert 18 mounted onto the die shaft 14.
  • replaceable it is meant that the insert 18 can be unbolted and removed from the die shaft 14, cleaned, reground or machined in some fashion and then secured back onto the die shaft 14 in its original position.
  • interchangeable it is meant that each of the die inserts 18 is capable of being mutually interchanged with any other insert 18. This interchangeability feature is very important because, up until now, it has been virtually impossible to produce replaceable and interchangeable inserts 18 for a rotary die cutter 10 while still maintaining the nip dimension between the anvil roll 12 and the knife shaft assembly 13.
  • the knife shaft assembly 13 can be constructed of a metal, for example steel, and should have an outer circumference machined to a very close tolerance.
  • the die shaft 14 can have one or more, preferably several die cutting inserts 18 mounted to its outer circumference 16. As depicted in Fig. 1, there are four die cutting inserts 18 equally spaced about the outer circumference 18 of the die shaft 14.
  • the anvil roll 12 and the knife shaft assembly 13 cooperate to form a nip 20 therebetween through which a web of material 22 can pass. As the anvil roll 12 and the knife shaft assembly 13 are rotated in opposite directions, the web of material 22 can pass through the nip 20 and be cut by the die cutting inserts 18 into individual articles 24.
  • the articles 24 can be transported by conventional means, such as a conveyor 26, to a location where they can be stacked, packaged and later shipped.
  • Any waste trim 30 from the rotary die cutter 10 can be directed away from the nip 20 by a conduit 28 using vacuum, air pressure, gravity or mechanical means.
  • the waste trim 30 can then be collected in a hopper 32 for possible recycling or some other means of disposal.
  • a replaceable and/or interchangeable die cutting insert 18 is shown before it is secured to the die shaft 14.
  • the replaceable and/or interchangeable die cutting insert 18 has an arcuately-shaped base 34 formed on a predetermined radius.
  • the base 34 has first and second spaced apart ends, 36 and 38 respectively, and first and second oppositely aligned surfaces, 40 and 42 respectively.
  • the first surface 40 will face the anvil roll 12 when the inserts 18 are assembled onto the knife shaft assembly 13.
  • the second surface 42 will be concave so as to match the outer circumference 16 of the die shaft 14 onto which the insert 18 is to be secured.
  • the second surface 42 It is common to machine the second surface 42 to have a tolerance of plus or minus 0.00026 cm (.0001 inches) so as to facilitate a proper attachment between the die cutting insert 18 and the die shaft 14. If the second surface 42 is not machined to closely match the outer circumference 16 of the die shaft 14, then it is possible for additional compressive forces to develop as each insert 18 is secured to the die shaft 14. The presence of such compressive forces can alter the dimension of the nip 20, and this is undesirable.
  • the die cutting insert 18 is shown having a knife 44 which is integrally formed about the periphery of the first surface 40.
  • the knife 44 is a continuous element but could be serrated if desired.
  • the knife 44 has a cutting edge 46 and first and second side waits, 48 and 50 respectively.
  • the cutting edge 46 has a width of less than 0.013 cm (.005 inches).
  • the width of the cutting edge 46 is between 0.0013 cm (.0005) to 0.01cm (.004 inches), and most preferably, the width is between 0.003 cm (.001) to 0.005 cm (.002 inches).
  • the width of the cutting edge 46 is very important because if the thickness becomes too great, it will be more difficult to cleanly cut the material 22 passing through the nip 20. For example, instead of making a clean cut, the cutting edge 46 could compressed the material 22 and allow the material 22 to be torn or broken and thereby produce a ragged cut.
  • the first side wall 48 is aligned approximately perpendicular to the cutting edge 46.
  • the first side wall 48 is coextensively aligned with the outside periphery 52 of the base 34.
  • the first side wall 48 will be aligned perpendicular, that is at 90 degrees, to the cutting edge 46.
  • the second side wall 50 is aligned in an angle of at least 15° relative to the cutting edge 46.
  • the second side wall 50 is located inward of the first side wall 48 and terminates at a third surface 54.
  • the third surface 54 is located intermediate the first surface 40 and the second surface 42.
  • the third surface 54 is spaced below the first surface 40 by a distance "d".
  • the actual distance between the first surface 40 and the third surface 54 can vary but normally will be about equal to the thickness of the article 24 which is to be cut.
  • the distance of the third surface 54 below the first surface 40 can be between 0.26 cm (0.1 inches) to 0.32 cm (.125 inches).
  • the distance “d” also represents the height of the knife 44.
  • the distance "d” can be affected by the type of material 22 which is being cut, the thickness of the material, whether the material is compressible, whether the material is formed from a single layer or from a plurality of layers, whether the layers are bonded together by an adhesive, as well as the particular characteristics of the material itself.
  • thermoplastic film may react differently to be cut than a fibrous nonwoven web.
  • distance "d" could be less than the thickness of the material 22 because the cut may not have to extend as far through the material as with a thicker product.
  • the second side wall 50 is aligned at an angle ⁇ of at least 15° relative to the cutting edge 46.
  • the angle ⁇ is between 15° to 50° relative to the cutting edge 46, and more preferably, the angle ⁇ is between 15° to 40° relative to the cutting edge 46. It is important that the second side wall 50 be angled relative to the cutting edge 46 at an angle ⁇ of at least 15° because the design of the insert 18 leaves very little support for the knife 44. Since the first side wall 48 is approximately perpendicularly aligned to the cutting edge 46, all support provided to the knife 44 will have to come from the material present between the first side wall 48 and the second side wall 50. If the angle ⁇ is less than 15°, there is a high probability that the cutting edge 46 will crack or chip as the material 22 is being cut because the forces acting on the cutting edge 46 can become very high.
  • the replaceable and/or interchangeable die cutting insert 18 further includes means for removably attaching the base 34 to at least a portion of the outer circumference 16 of the die shaft 14.
  • the die shaft 14 can have one or more, and preferably a plurality of replaceable and/or interchangeable die cutting inserts 18 mounted about its outer circumference 16.
  • the inserts 18 can be arranged so that they are equally spaced apart from one another or they can be arranged such that the outer periphery of one will contact the outer periphery of an adjacent insert 18.
  • inserts 18 are grouped around a portion of the outer circumference 16 while another portion of the outer circumference 16 is void of any inserts.
  • the particular arrangement and the spacing of the inserts 18 will depend upon the type of material which is to be cut and the particular configuration of the articles which are to be cut.
  • One means for removably attaching the die cutting inserts 18 to the die shaft 14 includes forming at least one aperture 56 adjacent to each of the first and second ends, 36 and 38 respectively.
  • a pair of apertures 56 are formed adjacent to each of the ends, 36 and 38 respectively, so as to permit each insert 18 to be correctly secured to the die shaft 14 without introducing unwanted forces into each insert 18.
  • Each of the apertures 56 extends completely through the base 34 from the third surface 54 to the second surface 42.
  • the apertures 56 are not threaded but do contain a counterbore 58 located adjacent to the third surface 54.
  • Each counterbore 58 is sized and configured to receive the head of a machine bolt 60, see Fig. 4, which will attach the insert 18 to the die shaft 14.
  • a threaded machine bolt 60 is shown positioned in one of the apertures 56.
  • the bolt 60 is aligned with and threaded into a threaded bore or aperture 62 formed in the die shaft 14.
  • the bolt 60 contains a head 64 and a threaded shank 65.
  • the head 64 is larger than the threaded shank 65 and is designed to seat in the counterbore 58 when the insert 18 is mounted onto the die shaft 14. When assembled, the head 64 will be flush with the third surface 54.
  • Each of the machine bolts 60 can have a predetermined thread pitch.
  • the length of the threads and the number of threads per inch can vary depending upon one's application.
  • the size and style of the bolts 60 can be selected depending upon the size and configuration of the replaceable and/or interchangeable die cutting insert 18. It should be noted that it is desirable to tighten the bolts 60 to a relatively high torque setting, for example between 690 kPa (100 pounds per square inch (psi)) to 6900 kPa (1000 psi). Preferably, each bolt 60 is tightened to a torque setting of between 1380 kPa (200 psi) to 3450 kPa (500 psi), and more preferably, between 2760 kPa (400 ps) to 3450 kPa (500 psi).
  • a relatively high torque setting for example between 690 kPa (100 pounds per square inch (psi)) to 6900 kPa (1000 psi).
  • each bolt 60 is tightened to a torque setting of between 1380 kPa (200 psi) to 3450 kPa (500 psi), and more preferably
  • One bolt size which works well in mounting an insert measuring 15.2 cm (six inches) in length, 5.1 cm (two inches) in width and 1.9 cm (.75 inches) in depth to a die shaft 14 is a bolt 60 having the following diameter (inches) and thread .3125-24 UAF. It is also advantageous to drill and tap the threaded bore 62 to a depth which is greater than the threaded length of the bolt shank 65 so that the bolt 60 will not bottom-out in the threaded bore 62. This difference in length will allow the bolt 60 to be properly torqued during assembly.
  • the bolts 60 should be sized and configured to mate with each pair of the coaxially aligned apertures 56 and 62. It should be noted that when each of the die cutting inserts 18 contains a single aperture 56 formed adjacent to each end, 36 and 38 respectively, that only two threaded bolts 60 will be required to secure each insert 18 to the die shaft 14. However, when each of the die cutting inserts 18 contains two apertures 56 formed adjacent to each end, 36 and 38 respectively, four threaded bolts 60 will be required to secure each insert 18 to the die shaft 14.
  • one of the threaded bores 62 is shown. It should be realized that there will be a plurality of threaded bores 62, one for each of the corresponding apertures 56 formed in each of the inserts 18. It is possible to arrange the threaded bores 62 in the die shaft 14 such that various sizes of inserts 18 can be assembled onto the die shaft 14 at a later time. By forming more threaded bores 16 than needed and arranging them at different locations about the outer circumference 16 of the die shaft 14, one can use a single die shaft 14 to accommodate two or more different style of die cutting inserts 18.
  • Each counterbore 66 begins at the outer circumference 16 of the die shaft 14 and has a depth of at least 0.13 cm (.05 inches). Preferably, the depth will range from 0.26 cm (.1 inches) to 0.51 cm (.2 inches), and more preferably, the depth will range between 0.26 cm (.1 inches) and 0.38 cm (.15 inches). A depth of 0.32 cm (.125 inches) works well when the threaded bores 62 have a diameter of 0.79 cm (.3125 inches) or greater.
  • the presence of the counterbores 66 are important for they functions to relieve compressive stresses in the metal from which the die shaft 14 is constructed.
  • Such force can occur as the replaceable and/or interchangeable die cutting inserts 18 are secured to the die shaft 14. It has been found that as a machine bolt 60 is threaded into the threaded bore 62 and then torqued to a relatively high inch pound value, that the metal forming the die shaft 14, on a microscopic scale, can actually buckle or deform as the die shaft 14 is drawn up against the insert 18. By forming the counterbore 66 at the open end of the threaded bore 62, one can minimize the amount of compressive stresses and forces which are developed.
  • the Insert 18 can also contains a pin hole 68 formed at the intersection of the central longitudinal axis X-X and the central transverse axis Y-Y.
  • the pin hole 68 is designed to be coaxially aligned with a hole or bore formed in the die shaft 14 such that a pin can be inserted through the pin hole 68 and serve to physically align the insert 18 onto the die shaft 14.
  • the bolts 60 can be threaded into the threaded bores 62.
  • the pin hole 68 is an optional feature and is present only for convenience in mounting the insert 18 onto the die shaft 14.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

L'invention porte sur une pièce rapportée (18) de découpe à l'emporte-pièce pour matrice de coupe rotative ainsi que sur la matrice de coupe elle-même. La pièce rapportée comporte une base (34) formée à partir d'un rayon prédéterminé. Cette base est pourvue de deux extrémités distinctes (36, 38) ainsi que de deux surfaces alignées (40, 42), en opposition. Une lame de coupe (44) est installée sur le pourtour de la première surface (40). Elle est faite d'un tranchant (46) dont la largeur est inférieure à 0,005 pouce ainsi que de deux parois latérales (48, 50). Par ailleurs, la première paroi latérale (48) est quasiment perpendiculaire au tranchant (46) alors que la seconde (50) forme avec le tranchant un angle dont l'ouverture est d'au moins 15° environ. Cette pièce rapportée (18) comporte également un dispositif permettant de la rattacher de façon amovible à l'arbre de la matrice. Ce dispositif comporte une ouverture (56), au moins, contiguë à chacune des deux extrémités (36, 38). Ces ouvertures (56) traversent entièrement la base (34) et la taille de chacune a été calculée pour recevoir un boulon fileté (60). Il est possible de serrer au couple ces derniers (60) avec une force prédéfinie afin d'assujettir la pièce rapportée à l'arbre (14) de matrice. La matrice de coupe rotative comporte un arbre (14) de matrice sur lequel est montée au moins une pièce rapportée (18) de découpe à l'emporte-pièce remplaçable et/ou interchangeable, ce montage alignant la ou les pièces avec un rouleau (12) rotatif d'enclume et ce, afin de les faire fonctionner de concert. L'arbre (14) de matrice et le rouleau (12) d'enclume sont ainsi disposés qu'ils constituent une ligne de contact (20) entre eux. Le matériau (22) à découper passe par cette ligne de contact (20) pour être coupé à la forme désirée (24), forme définie par les pièces rapportées (18) de découpe à l'emporte-pièce.

Claims (17)

  1. Ensemble d'arbre à couteau (13) comprenant :
    a) un arbre d'emporte-pièce (14) rotatif ayant une circonférence extérieure, ledit arbre d'emporte-pièce (14) ayant une pluralité d'alésages taraudés (62) ;
    b) au moins un insert de coupe à l'emporte-pièce (18) comprenant une base (34) formée sur un rayon prédéterminé, ladite base ayant des première et seconde extrémités espacées (36, 38) et des première et seconde surfaces alignées en opposition (40, 42) ;
       un couteau (44) ayant une arête de coupe (46) ayant une largeur inférieure à 0,013 cm (0,005 pouce), et des première et seconde parois latérales (48, 50) et
       des moyens pour fixer de manière détachable ladite base audit arbre d'emporte-pièce (14), ledit moyen comprenant au moins une ouverture (56) formée adjacente à chacune desdites première et seconde extrémités (36, 38), lesdites ouvertures (56) s'étendant complètement au travers de ladite base (34), et au moins deux boulons filetés (60) dimensionnés pour s'apparier avec lesdites ouvertures (56) et fixer ledit insert (18) sur ledit arbre d'emporte-pièce (14),
       caractérisé en ce que ledit couteau (44) est formé au niveau du bord de ladite première surface (40), ladite première paroi latérale (48) étant orientée perpendiculairement à ladite arête de coupe (46) et ladite seconde paroi latérale (50) étant orientée selon un angle d'au moins 15 degrés par rapport à ladite arête de coupe (46), et en ce que chacun desdits alésages taraudés (62) comporte un réalésage périphérique extérieur de l'arbre d'emporte-pièce (66) formé dans ledit arbre d'emporte-pièce (14) et aligné coaxialement avec ledit alésage taraudé (62), ledit réalésage périphérique extérieur de l'arbre d'emporte-pièce (66) étant situé au niveau de ladite circonférence extérieure dudit arbre d'emporte-pièce (14).
  2. Ensemble d'arbre à couteau (13) selon la revendication 1, dans lequel ladite base (34) a une périphérie extérieure (52) et ladite première paroi latérale (48) est coextensive avec ladite périphérie extérieure (52) de ladite base (34).
  3. Ensemble d'arbre à couteau (13) selon la revendication 1 ou 2, dans lequel ladite seconde paroi latérale (50) est située à l'intérieur par rapport à ladite première paroi latérale (48).
  4. Ensemble d'arbre à couteau (13) selon la revendication 3, dans lequel ladite seconde paroi latérale (50) se termine en une troisième surface (54) qui est située en un emplacement intermédiaire entre lesdites première et seconde surfaces (40, 42).
  5. Ensemble d'arbre à couteau (13) selon la revendication 4, dans lequel ladite troisième surface (54) est espacée d'au moins 0,013 cm (0,005 pouce) au-dessous de ladite première surface (40).
  6. Ensemble d'arbre à couteau (13) selon l'une des revendications précédentes, dans lequel ladite seconde paroi latérale (50) est orientée selon un angle compris entre 15 degrés et 50 degrés par rapport à ladite arête de coupe (46).
  7. Ensemble d'arbre à couteau (13) selon la revendication 6, dans lequel ladite seconde paroi latérale (50) est orientée selon un angle compris entre 15 degrés et 40 degrés par rapport à ladite arête de coupe (46).
  8. Ensemble d'arbre à couteau (13) selon l'une des revendications précédentes, dans lequel ladite arête de coupe (46) a une largeur comprise entre 0,0013 cm (0,0005 pouce) et 0,01 cm (0,004 pouce).
  9. Ensemble d'arbre à couteau (13) selon la revendication 8, dans lequel ladite arête de coupe (46) a une largeur comprise entre 0,003 cm (0,001 pouce) et 0,005 cm (0,002 pouce).
  10. Ensemble d'arbre à couteau (13) selon l'une des revendications précédentes, dans lequel l'insert (18) est remplaçable et/ou interchangeable.
  11. Ensemble d'arbre à couteau (13) selon la revendication 10, dans lequel la base (34) est de forme arquée.
  12. Ensemble d'arbre à couteau (13) selon l'une des revendications précédentes, dans lequel le couteau est un couteau continu (44) et il est formé d'un seul tenant autour de la périphérie de ladite première surface (40).
  13. Ensemble d'arbre à couteau (13) selon l'une des revendications précédentes, dans lequel ledit moyen pour fixer de manière détachable ladite base (34) à au moins une portion de la circonférence extérieure (16) de l'arbre d'emporte-pièce (14) comprend une paire d'ouvertures (56) formées adjacentes auxdites première et seconde extrémités espacées (36, 38), et ledit moyen comprend en outre quatre boulons filetés (60) dimensionnés pour s'apparier avec lesdites ouvertures (56) et fixer ledit insert (18) audit arbre d'emporte-pièce (14).
  14. Ensemble d'arbre à couteau (13) selon l'une des revendications précédentes, dans lequel chacun desdits réalésages (66) a une profondeur d'au moins 0,13 cm (0,05 pouce).
  15. Ensemble d'arbre à couteau (13) selon la revendication 14, dans lequel chacun desdits réalésages (66) a une profondeur comprise entre 0,26 cm (0,1 pouce) et 0,51 cm (0,2 pouce).
  16. Ensemble d'arbre à couteau (13) selon la revendication 15, dans lequel chacun desdits réalésages (66) a une profondeur d'environ 0,32 cm (0,125 pouce).
  17. Emporte-pièce rotatif (10) comprenant :
    a) un rouleau formant enclume rotative (12) ;
    b) l'ensemble d'arbre à couteau selon l'une des revendications précédentes, chacun desdits inserts (18) d'emporte-pièce coopérant avec ledit rouleau enclume (12) pour former un espace de pression (20) entre eux.
EP96945072A 1996-01-26 1996-12-19 Arbre avec des inserts de decoupe a l'emporte-piece pour matrice de coupe rotative et matrice de coupe Expired - Lifetime EP0876246B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US1063696P 1996-01-26 1996-01-26
US66757896A 1996-06-21 1996-06-21
US667578 1996-06-21
PCT/US1996/020711 WO1997027033A1 (fr) 1996-01-26 1996-12-19 Piece rapportee de decoupe a l'emporte-piece pour matrice de coupe rotative et matrice de coupe
US10636P 2001-11-05

Publications (2)

Publication Number Publication Date
EP0876246A1 EP0876246A1 (fr) 1998-11-11
EP0876246B1 true EP0876246B1 (fr) 2003-06-11

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EP96945072A Expired - Lifetime EP0876246B1 (fr) 1996-01-26 1996-12-19 Arbre avec des inserts de decoupe a l'emporte-piece pour matrice de coupe rotative et matrice de coupe

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EP (1) EP0876246B1 (fr)
JP (1) JP2000503262A (fr)
KR (1) KR100441574B1 (fr)
AU (1) AU1352897A (fr)
DE (1) DE69628668T8 (fr)
WO (1) WO1997027033A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5967009A (en) * 1996-05-30 1999-10-19 Kimberly-Clark Worldwide, Inc. Rotary knife apparatus and cutting method
SE528041C2 (sv) * 2004-07-02 2006-08-15 Sandvik Intellectual Property Rotationskniv och rotationsknivenhet med en dylik rotationskniv
CN104057493A (zh) * 2014-06-24 2014-09-24 吴中区甪直渡岘工艺品厂 滚子切刀
CN109434954A (zh) * 2018-10-29 2019-03-08 苏州中航盛世刀辊制造有限公司 一种具有排废功能的模切刀辊装置
CN114012166B (zh) * 2021-11-01 2023-03-10 江苏华宏科技股份有限公司 板料剪切系统及其锯齿形多刀剪

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191416735A (en) * 1914-07-14 1915-07-01 Ammon Bird Improvements in and relating to Press Cutters, for Labels, and other Articles of Paper, Leather and the like.
US1738271A (en) * 1926-03-25 1929-12-03 Box Blank Corp Die roll
US2381955A (en) * 1943-12-04 1945-08-14 P L Andrews Corp Envelope machine
DE1436912C3 (de) * 1963-03-21 1975-07-17 F.L.Smithe Machine Co. Inc., New York, N.Y. (V.St.A.) Rotationsstanze für Papier
FR1420429A (fr) * 1964-09-25 1965-12-10 Etampe linéaire utilisable comme élément de coupe
US3744384A (en) * 1970-02-21 1973-07-10 Masson Scott Thrissell Eng Ltd Rollers for cutting,creasing,perforating or embossing sheet materials
US3792637A (en) * 1972-06-07 1974-02-19 Container Graphics Corp Rotary die and cutting rule
US4412467A (en) * 1981-09-14 1983-11-01 Lehigh Steck Warlick Cylinder-mounted cutter
JPS63312099A (ja) * 1987-06-10 1988-12-20 株式会社レザック シ−ト打抜用ナイフ
DE3927106A1 (de) * 1989-08-17 1991-02-21 Schober Werkzeug & Maschbau Schneidwalze oder stanzzylinder und verfahren zum herstellen von solchen
EP0525327B1 (fr) * 1991-08-02 1995-03-01 EUGEN DROHMANN GmbH STANZMESSER UND WERKZEUGFABRIK Poinçon

Also Published As

Publication number Publication date
DE69628668D1 (de) 2003-07-17
EP0876246A1 (fr) 1998-11-11
DE69628668T2 (de) 2004-04-29
KR100441574B1 (ko) 2004-12-03
JP2000503262A (ja) 2000-03-21
AU1352897A (en) 1997-08-20
DE69628668T8 (de) 2004-08-12
WO1997027033A1 (fr) 1997-07-31
KR19990082030A (ko) 1999-11-15

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