EP0879197B1 - Maschine zum einkerben - Google Patents

Maschine zum einkerben Download PDF

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Publication number
EP0879197B1
EP0879197B1 EP96928615A EP96928615A EP0879197B1 EP 0879197 B1 EP0879197 B1 EP 0879197B1 EP 96928615 A EP96928615 A EP 96928615A EP 96928615 A EP96928615 A EP 96928615A EP 0879197 B1 EP0879197 B1 EP 0879197B1
Authority
EP
European Patent Office
Prior art keywords
creasing
strip
matrix
platen
article
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
EP96928615A
Other languages
English (en)
French (fr)
Other versions
EP0879197A1 (de
Inventor
Thomas Best
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.)
Trimplex Ltd
Original Assignee
Trimplex Ltd
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.)
Filing date
Publication date
Application filed by Trimplex Ltd filed Critical Trimplex Ltd
Publication of EP0879197A1 publication Critical patent/EP0879197A1/de
Application granted granted Critical
Publication of EP0879197B1 publication Critical patent/EP0879197B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/08—Creasing
    • 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
    • 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
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • 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
    • B26F2001/4445—Matrices, female dies, creasing tools

Definitions

  • the present invention relates to creasing machines. Such machines are commonly employed to pre-form crease lines in cardboard or corrugated cardboard, but the present invention is not limited to such applications.
  • Known creasing machines comprise platens which carry creasing matrices formed of matrix elements which project from the platen surface and have small gaps therebetween. Above each such gap is a creasing rule of the platen which is movable in a direction substantially perpendicular to the surface. In its raised position, the creasing rule stands clear of the creasing matrix whilst in its lower position the creasing rule projects into the area between the matrix elements.
  • the creasing rule is moved to its raised position, and a sheet moved substantially parallel to the platen until the desired crease line lies between the respective gap and the creasing rule.
  • the creasing rule is then moved sharply into its lowered position, and then to its raised position. A crease is thus produced in the sheet.
  • An object of the present invention is to overcome this problem.
  • the present invention provides in one aspect a creasing machine for imparting a crease to a creasable article, the machine comprising a platen, a creasing matrix secured to the surface of the platen and upstanding therefrom, and a creasing rule moveable transversely between a position spaced from the creasing matrix and a position adjacent or within the creasing matrix; and a strip positioned ahead of the creasing matrix and in the path of the article to be creased, the strip having a profile whose leading edge is curvilinear and whose undersurface lies flush with the surface of the platen at all times, the profiled strip acting to deflect an incoming article thereby preventing or minimising contact between the article with an upstanding face of the creasing matrix.
  • the profiled strip may be adhered to the platen surface by, for example, double-sided tape.
  • the tape is adhered to the strip undersurface over only a recessed rear portion of the strip undersurface, the leading portion of the profiled stipe lying flush with the platen surface.
  • the profiled strip operates inter alia to create a vortex in the boundary layer around the moving article which creates lift in those cases where the incoming article is liable to strike the creasing matrix. Should contact occur between an incoming article and the profiled strip, the profile of the strip prevents damage occurring to the article thereby preventing jamming of the machine.
  • the present invention is capable of working in both a contactless fashion and one in which damage or jamming does not occur should there be contact between the article and the profiled strip.
  • a preferred profile is an aerodynamic profile having a thickness for the aerodynamic profile is between one and two times the height of the creasing matrix.
  • the exact positioning of the strip is not essential so long as the functional requirement is met.
  • a suitable spacing between the creasing matrix and the strip is between one and two times the gap of an element of the creasing matrix.
  • the known creasing machine illustrated in Figure 1 has a platen 1 which carries a creasing matrix formed of matrix elements 2, 3 which project from the platen 1 and have a small gap 4 therebetween. Above the gap is a creasing rule 5 which is moveable in a direction substantially perpendicular to the surface of the platen 1. In its raised position, the creasing rule stands clear of the creasing matrix whilst in its lower position the creasing rule projects into the gap 4 between the matrix elements 2, 3.
  • the creasing rule 5 is moved to its raised position, and the sheet 6 is moved substantially parallel to the platen 1 until the desired crease line lies between the gap 4 and the creasing rule 5.
  • the creasing rule 5 is then moved sharply into its lowered position, and then to its raised position. A crease is thus produced in the sheet 6.
  • Figure 2 shows a creasing machine similar to that of Figure 1, but with the addition of a profiled lead strip 10. Similar integers to those shown in Figure 1 have been given the same reference numerals.
  • the lead strip is of an aerodynamic profile and has a curvilinear leading edge 11 and a thicker end 12 positioned closer to the creasing matrix.
  • the lead strip 10 is, in this embodiment, positioned ahead of the creasing matrix by a distance roughly equal to the width of the creasing element 3. Its height is roughly twice that of the creasing element 3.
  • the aerodynamic profile is similar to that of a common aircraft wing.
  • the profiled strip 10 has double-sided tape 14 secured to its undersurface which is recessed to receive the tape to ensure that the leading edge of the strip always lies flush with the surface of the platen and does not lift in use of the machine.
  • the tape extends from the trailing edge of the strip to a position just inboard from the strip leading edge.
  • One effect of the lead strip 10 is to affect the air within the boundary layer of the sheet 6. Such air will normally be carried along with the sheet 6 so that it moves. It therefore has a translational velocity component relative to the lead strip 10. As the leading edge 7 of the sheet 6 passes over the lead strip 10, a vortex is created behind the lead strip 10 which raises the leading edge 7 to prevent it striking the matrix element 3. In the event that contact is made, the effect on the sheet leading edge is marginal because of the profile of the strip 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Making Paper Articles (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Eye Examination Apparatus (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Compressor (AREA)

Claims (3)

  1. Kerbmaschine zum Einprägen einer Kerbe in einem korbbaren Gegenstand mit einer Platte (1), mit einer auf der Oberfläche der Platte festgelegten und von dieser vorstehenden Kerbmatrix (2, 3) und mit einem Kerblineal (5), welches quer beweglich ist zwischen einer Stellung, in der es von der Kerbmatrix (2, 3) im Abstand liegt und einer Stellung, in der es benachbart zur Kerbmatrix oder in dieser befindlich ist, wobei die Maschine dadurch gekennzeichnet ist, daß sie eine Leiste (10) aufweist, die vor der Kerbmatrix und im Bewegungspfad des einzukerbenden Gegenstandes (6) angeordnet ist, daß die Leiste (10) ein Profil besitzt, dessen Vorderrand gekrümmt ist und dessen Unterseite mit der Oberfläche der Platte (1) immer fluchtet, und daß die Profilleiste eine Auslenkung eines ankommenden Gegenstandes bewirkt und dadurch eine Berührung zwischen dem Gegenstand mit einer vorstehenden Fläche der Kerbmatrix verhindert oder vermindert.
  2. Kerbmaschine nach Anspruch 1, bei welcher die Profilleiste (10) auf der Platte mit einem doppelseitigen Klebeband (14) festgelegt ist.
  3. Kerbmaschine nach Anspruch 2, bei welcher die Unterseite der Profilleiste (10) eine Ausnehmung aufweist, um das doppelseitige Klebeband (14) aufzunehmen, wobei sich diese Ausnehmung vom Hinterrand der Leiste (10) nach einer Stelle erstreckt, die im Inneren der Leiste im Abstand zu ihrem Vorderrand liegt.
EP96928615A 1996-01-30 1996-08-27 Maschine zum einkerben Expired - Lifetime EP0879197B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9601827.0A GB9601827D0 (en) 1996-01-30 1996-01-30 Creasing machine
GB9601827 1996-01-30
PCT/GB1996/002131 WO1997028074A1 (en) 1996-01-30 1996-08-27 Creasing machines

Publications (2)

Publication Number Publication Date
EP0879197A1 EP0879197A1 (de) 1998-11-25
EP0879197B1 true EP0879197B1 (de) 2000-03-15

Family

ID=10787792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96928615A Expired - Lifetime EP0879197B1 (de) 1996-01-30 1996-08-27 Maschine zum einkerben

Country Status (6)

Country Link
EP (1) EP0879197B1 (de)
AT (1) ATE190585T1 (de)
AU (1) AU6833496A (de)
DE (1) DE69607215D1 (de)
GB (1) GB9601827D0 (de)
WO (1) WO1997028074A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10618240B2 (en) 2014-11-05 2020-04-14 Bobst Mex Sa Method for production of a female embossing tool, a female embossing tool, and an embossing module equipped therewith

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016747A3 (nl) * 2005-09-27 2007-05-08 Rillivo Bv Met Beperkte Aanspr Verbeterde stansrilplaat.
JP2016041460A (ja) * 2014-08-19 2016-03-31 大創株式会社 ジャンピングシール

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884132A (en) * 1974-01-11 1975-05-20 Channel Creasing Matrix Inc Magnetically located scoring die matrix
FR2602158B1 (fr) * 1986-07-30 1989-08-18 Bombled Ind Cisaille-guillotine a commande numerique equipee d'un dispositif d'alimentation
US5163894A (en) * 1991-05-30 1992-11-17 Masaaki Ogawa Female die for paperboard stamper
DE9114037U1 (de) * 1991-08-22 1992-01-16 Vossen, Franz, 7768 Stockach Vorrichtung und Hilfsmittel zum Behandeln von Zurichtebogen für Bandstahlschnitte
DE9214654U1 (de) * 1992-10-28 1994-03-03 PCE Paper Converting Equipment GmbH, 93073 Neutraubling Matrizenbogen für ein Stanzwerkzeug zum Herstellen von Kartonagenzuschnitten
DE9411502U1 (de) * 1994-07-20 1994-10-27 Schäfer, Michael, 90542 Eckental Zurichtstreifen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10618240B2 (en) 2014-11-05 2020-04-14 Bobst Mex Sa Method for production of a female embossing tool, a female embossing tool, and an embossing module equipped therewith
US11203174B2 (en) 2014-11-05 2021-12-21 Bobst Mex Sa Method for production of a female embossing tool, a female embossing tool, and an embossing module equipped therewith

Also Published As

Publication number Publication date
GB9601827D0 (en) 1996-04-03
AU6833496A (en) 1997-08-22
DE69607215D1 (de) 2000-04-20
ATE190585T1 (de) 2000-04-15
EP0879197A1 (de) 1998-11-25
WO1997028074A1 (en) 1997-08-07

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