• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A method of grooving sheet material along a line about which the material is subsequently to be folded comprises the step of forming, along said line, an impression. The impression forms a groove on one side of the material, the groove being intended to form the outer face of the edge of the fold when the material has been folded. The impression also forms, on the other side of the material, a corresponding bead which is intended to be located on the inside of the fold. Two parallel and opposite lines of elongate depressions are formed in the bead during the formation of the impression, the lines of depressions being formed one on each side of the central longitudinal axis of the bead. Each depression is constituted a portion of material which is of reduced thickness and which creates a localized zone of reduced strength.
    公开号:SU712018A3
    申请号:SU2436957
    申请日:1977-01-06
    公开日:1980-01-28
    发明作者:Гастон Корс Луи
    申请人:Машин-Шамбон С.А. (Фирма)；
    IPC主号:
    专利说明:

    one ,.
    The invention relates to devices for mechanically deforming cardboard without removing material, in particular to devices for bending cardboard.
    A device for bending cardboard containing a knife having a trapezoidal section, means for moving the knife and a support with a slider located opposite the knife 1 is known.
    In the known device, the knife partially penetrates into the cardboard and hem its fibers. To eliminate the tearing out of the cardboard on the blade of the knife, teeth are made with uniform intervals, forming in the cardboard the same strokes with a length of about 2 mm. These strokes are applied to the inner part of the bulge that forms on the cardboard during scoring. After bending the cardboard, the strokes appear on its outer side and turn into grooves, giving a poor appearance to the bending edge and creating a tendency to tear; resulting in a zone of attenuation.
    The purpose of the invention is to improve the quality of creasing.
    The goal is achieved by the fact that on opposite edges
    the groove is made with bevels parallel to the working planes of the knife and spaced from them at a distance of the thickness of the paperboard and at the same distance from one another. In this case, it is advisable to perform bevels in pairs symmetrically. relative to the longitudinal plane of symmetry of the groove and arranged in a staggered order, and the distances between the edges of the groove and the working planes of the knife should be equal to half the thickness of the cardboard.
    FIG. 1 shows the proposed scoring device, a cross-section; in fig. 2 - part of the support device, top view; in fig. 3 piece of cardboard sheet with a groove, cross section; in fig. 4 - a sheet of cardboard, top view; in fig. 5 - cardboard sheet with a groove in the process of bending, cross section.
    The scoring device comprises a knife 1 having a trapezoidal section, with working planes 2 and 3, means for moving the knife and a support 4 with a groove 5 located opposite the knife. The groove 5 has a base 6, parallel to the surface of the support 4, two side faces 7 and 8, forming with the surface of the support 4 edges 9 and 10.
    The ribs 9 and 10 of the nodos are spaced from the working planes 2 and 3 of knife 1, which is approximately equal to half the thickness a of sheet 11 of cardboard. The width of the gras 12 of the knife 1 can be from one to two thicknesses per cardboard, and the depth of the groove 5 is somewhat greater than this thickness. On face 7 and 8 of groove 5, bevels 12 and 13 are made parallel to the plane, planes m 2 and 3 of knife 1 and located from them at a distance of cardboard thickness and at the same distance from each other. Bevels 12 and 13 are pairwise symmetric with respect to the longitudinal plane: xy symmetry of the groove. In addition, the bevels may be arranged in a checkerboard pattern.
    The device works as follows.
    A cardboard sheet 11 is placed between the knife 1 and the support 4. The knife is lowered and presses the part of sheet II sandwiched between the face 12 and the support 4 into the groove 5 of the support 4. As a result, the knife 1 forms a longitudinal offset that defines the line of the subsequent bend and has a recess 14 on the side of the knife. After the bending of the cardboard, the recess 14 forms the outer side of the bending rib, and on the other side a thickening 15 appears, which should be inside the bend. FIG. 3 shows the shape that sheet 11 takes after creasing. When scoring in the process of formation of the longitudinal Imprint, which determines the bending line on the sheet 11 of cardboard, at the thickening 15 get two opposite parallel lines of strokes 16 and 17 located on both sides of the xy plane. Each of the strokes 16 and 17 is formed by a section of a sheet of cardboard having a smaller thickness, as a result of which a zone of lesser strength is created. Thickening occurs in those places where the edges 9 and 10 are cut and where the cardboard sheet is strongly compressed between the working planes 2 and 3 of knife 1 and the edges 9 and 10 and has a thickness of approximately
    half the initial thickness of the sheet. In those places where there are bevels 12 and 13, the thickness of the sheet 11 does not change.
    When the cardboard sheet 11 is bent in the direction of the arrows CG, the recess 14 is stretched and forms a flat outer surface without discontinuity, while the dashes 16 and 17, which facilitate the bending, are located by NNELMI in the thickening 15 inside the bend. The resulting bend has the correct appearance and its strength is not reduced due to the presence of a notch on the outside. The alternation and length of the bevels 12 and 13 depend on the attenuation, which is necessary. We need to get in the bend zones.
    权利要求:
    Claims (4)
    [1]
    1. A cardboard bending device containing a knife having a trapezoidal section, means for moving the knife and a support with a groove opposite the knife, which is different in that, in order to improve the quality of the creasing, on opposite pranes of the groove are made bevels parallel to the working plane m knife and located from them at a distance of thickness of cardboard
    and at the same distance from each other.
    [2]
    2, the device according to claim 1, characterized in that the bevels are symmetrically perpendicular to the longitudinal plane of symmetry of the groove.
    [3]
    3, the apparatus according to claim 1, characterized in that the bevels are arranged in a checkerboard pattern.
    [4]
    4. The device according to claim 1, wherein the distances between the edges of the groove and the working planes of the knife are equal to half the thickness of the cardboard.
    Sources of information taken into account in the examination
    1. Auxiliaire des fabricants de Cartonnages, December 1972, p. 39-42
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU712018A3|1980-01-28|Carton cutting device
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    US4946430A|1990-08-07|Apparatus and method for forming at least one fold line in a substantially rigid plastic material
    CZ43297A3|1997-09-17|Process for producing punched grooved parts and a punching and grooving tool for making the same
    US2458867A|1949-01-11|Method of and apparatus for preparing creasing counters
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    US4486927A|1984-12-11|Production of expanded metal parts
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    SE7416091L|1975-07-03|
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    US6311601B1|2001-11-06|Method of manufacturing dies used in cutting and creasing paperboard
    US1667292A|1928-04-24|Machine for making elastic paper
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    JPH0948077A|1997-02-18|Grooving form for stamping rule and ruler for stamping rule
    JPH0839661A|1996-02-13|Bending rule applied plastic sheet, production thereof and bending rule blade
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    US20160059508A1|2016-03-03|Tool for producing fold lines
    US2182002A|1939-12-05|Bag making machine
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    US2251513A|1941-08-05|Corrugating machine
    JP2021024020A|2021-02-22|Sheet punching die
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    同族专利:
    公开号 | 公开日
    IT1072255B|1985-04-10|
    DE2658662A1|1977-07-21|
    BR7700048A|1977-09-06|
    JPS5742505B2|1982-09-09|
    JPS52118019A|1977-10-04|
    FR2337623B1|1979-05-18|
    DE2658662B2|1979-10-18|
    GB1542480A|1979-03-21|
    FR2337623A1|1977-08-05|
    BE850134A|1977-05-02|
    DE2658662C3|1980-06-19|
    NL7700099A|1977-07-12|
    US4129065A|1978-12-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2694911C2|2014-06-17|2019-07-18|Тетра Лаваль Холдингз Энд Файнэнс С.А.|Method of making crease lines|US1187144A|1912-01-15|1916-06-13|M D Knowlton Co|Carton-blank-forming machine.|
    US1340558A|1919-09-09|1920-05-18|Independent Trunk|Machine for cutting and preparing dress-suit-case body-blanks|
    US2781095A|1951-08-18|1957-02-12|Spinner Isidore|Roller perforating device|
    US2949827A|1958-06-11|1960-08-23|Alton Box Board Co|Manufacture of box blanks from box board|US4370803A|1977-02-24|1983-02-01|General Battery Corporation|Method for enveloping the plates of an automotive storage battery with separator material|
    SE432918B|1979-10-18|1984-04-30|Tetra Pak Int|BIG LINE PACKAGED LAMINATE|
    US5073162A|1989-02-21|1991-12-17|Philip Morris Incorporated|Apparatus for forming containers with rounded edges|
    US4955531A|1989-02-21|1990-09-11|Herman Graboyes|Blank for use in forming a container having a rounded edge|
    US5064409A|1989-02-21|1991-11-12|Philip Morris Incorporated|Method and apparatus for forming containers with rounded edges|
    US5707327A|1996-12-31|1998-01-13|Carbone; Martin R.|Box making kit and method for using|
    CN1915660B|1997-08-28|2010-12-15|大日本印刷株式会社|Producing apparatus and the heat-insulating container|
    US6071225A|1998-06-12|2000-06-06|Dynamic Dies, Inc.|Scoring rule|
    EP1227042B1|2001-01-30|2004-04-07|SEDA S.p.A.|Cardboard container for drinks and process therefore|
    DE202004007969U1|2004-05-18|2005-09-29|Seda S.P.A., Arzano|container|
    BRPI0601188B1|2005-04-15|2018-06-26|Seda S.P.A.|ISOLATED CONTAINER; METHOD OF MANUFACTURING THE SAME AND APPARATUS FOR MANUFACTURING|
    DE202005014177U1|2005-09-08|2005-11-17|Seda S.P.A., Arzano|Double-walled beaker comprises an inner wall formed by an inner beaker which is made of a fluid-tight plastic material, and is releasably inserted into an outer beaker forming the outer wall|
    EP1785370B2|2005-11-11|2014-03-12|SEDA S.p.A.|Insulated cup|
    EP1785265A1|2005-11-14|2007-05-16|SEDA S.p.A.|Device for producing a stacking projection on a container wall and container with same|
    DE202006018406U1|2006-12-05|2008-04-10|Seda S.P.A.|packaging|
    JP2010284865A|2009-06-11|2010-12-24|Nippon Die Steel Kk|Groove member for forming ruled line|
    JP5307638B2|2009-06-11|2013-10-02|日本ダイスチール株式会社|Ruled line forming groove member|
    US10464277B2|2012-10-12|2019-11-05|F.P. Rosback Company|Reconfigurable scoring heads|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7600301A|FR2337623B1|1976-01-08|1976-01-08|
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