WO2024070403A1 - Circular blade for cutting films - Google Patents

Circular blade for cutting films Download PDF

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Publication number
WO2024070403A1
WO2024070403A1 PCT/JP2023/031146 JP2023031146W WO2024070403A1 WO 2024070403 A1 WO2024070403 A1 WO 2024070403A1 JP 2023031146 W JP2023031146 W JP 2023031146W WO 2024070403 A1 WO2024070403 A1 WO 2024070403A1
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WO
WIPO (PCT)
Prior art keywords
circular blade
hole
blade body
resin plate
resin
Prior art date
Application number
PCT/JP2023/031146
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French (fr)
Japanese (ja)
Inventor
真一 岡田
崇 川上
敏幸 上村
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オルファ株式会社
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Application filed by オルファ株式会社 filed Critical オルファ株式会社
Publication of WO2024070403A1 publication Critical patent/WO2024070403A1/en

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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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor

Definitions

  • the present invention relates to a circular blade that is attached to a film slitter (cutting device) to cut the film.
  • a slitter for cutting film using a circular blade.
  • the circular blade is rotated intermittently each time a predetermined amount of film is cut, allowing the cut to be performed at a different position on the circular blade.
  • Slitters that cut film while continuously rotating the circular blade are also known.
  • the positional precision of the circular blade must be extremely high in order to maintain the contact position (position in space) and contact angle between the film and the circular blade. Changes in the contact position or contact angle between the film and the circular blade can affect the film cutting performance.
  • a mounting hole is formed at the axial center of the circular blade to attach it to the device (shaft side).
  • This mounting hole is usually formed by machining.
  • machining accuracy it may not be possible to achieve sufficient positional accuracy for a circular blade for a slitter.
  • the present invention has been made in consideration of the above-mentioned circumstances.
  • the main object of the present invention is to provide a technology that can attach a circular blade to a slitter with high accuracy even if the machining accuracy of the circular blade is insufficient.
  • another object of the present invention is to provide a technology that improves the machining accuracy in the sharpening process of the circular blade and makes the process easier.
  • a circular blade for cutting a film comprising a disk-shaped circular blade body and a resin part attached to the circular blade body, a blade part for cutting the film formed on the outer periphery of the circular blade body, a through hole penetrating the circular blade body in the thickness direction at the center of the circular blade body, the resin part attached to the surface of the circular blade body so as to cover the side edges of the through hole, and a mounting hole formed in the resin part for mounting the circular blade to a cutting device for cutting the film.
  • (Item 2) 2. The circular blade according to item 1, wherein the resin part has a first resin plate arranged on one side of the circular blade body and a second resin plate arranged on the other side of the circular blade body, a first hole portion constituting a part of the mounting hole is formed in approximately the center of the first resin plate, a first boss is formed on the periphery of the first hole portion and is fitted into the inside of the through hole, and a second hole portion coaxial with the first hole portion is formed in approximately the center of the second resin plate, and the second hole portion is fitted into the outside of the first boss, thereby allowing the circular blade body to be sandwiched and held between a surface of the first resin plate and a surface of the second resin plate.
  • the blade (Item 3) a circular blade attached to the slitter so as to rotate intermittently and for cutting the film in a stationary state,
  • the blade has a disk-shaped circular blade body and a resin part attached to the circular blade body.
  • a blade portion for cutting the film is formed on the outer periphery of the circular blade body,
  • a through hole (22) is formed in the center of the circular blade body, penetrating the circular blade body in the thickness direction,
  • the resin portion is attached to a surface of the circular blade body so as to cover a side edge of the through hole,
  • the resin portion has a mounting hole (4) for mounting the circular blade to a slitter for cutting the film,
  • a positioning through hole (23) is formed around the through hole (22) of the circular blade body, and the positioning through hole (23) is fitted into a positioning boss provided on the slitter side.
  • the resin portion has a first resin plate (5) arranged on one surface side of the circular blade body and a second resin plate (6) arranged on the other surface side of the circular blade body, A first hole portion (51) constituting a part of the mounting hole (4) is formed in the approximate center of the first resin plate, and a first boss (52) fitted into the through hole (22) is formed on the periphery of the first hole portion (51), A second hole portion (61) is formed in the approximate center of the second resin plate, the second hole portion (61) being coaxial with the first hole portion (51), and the second hole portion (61) is fitted into the outside of the first boss, whereby the circular blade body can be sandwiched and held between a surface of the first resin plate and a surface of the second resin plate, Furthermore, a positioning hole (53) is formed around the first hole in the first resin plate at a position coaxial with the positioning through hole (23) when the first resin plate is attached to the circular blade body, and a positioning boss (54) is provided on the periphery of the hole (53),
  • the technology of the present invention makes it possible to attach the circular blade to the slitter with high precision even if the machining precision of the circular blade is insufficient. Furthermore, according to the present invention, by attaching a resin part to the circular blade body before sharpening and then performing the sharpening process, the precision of the sharpening process of the circular blade can be improved and this process can be made easier.
  • FIG. 2 is a front view of a circular blade according to an embodiment of the present invention.
  • FIG. 2 is a right side view of FIG. 1 .
  • 2 is an enlarged cross-sectional view of a main portion taken along line AA in FIG. 1.
  • FIG. 2 is a front view of a circular blade body used in the circular blade of FIG. 1 .
  • FIG. 4 is an enlarged cross-sectional view of a portion B in FIG. 3 .
  • FIG. 2 is a front view of a first resin plate used in the circular blade of FIG. 1 .
  • 7 is a cross-sectional view taken along line CC in FIG. 6.
  • FIG. 2 is a front view of a second resin plate used in the circular blade of FIG. 1 .
  • 9 is a cross-sectional view taken along line DD in FIG. 8.
  • a circular blade 1 for cutting film according to one embodiment of the present invention will be described with reference to the attached drawings.
  • This circular blade 1 is composed of a disk-shaped circular blade body 2 and a resin part 3 attached to this circular blade body 2 (see Figs. 1 and 2).
  • the circular blade body 2 has a blade portion 21 (see FIGS. 3 and 5) formed on the outer periphery thereof for cutting a film (not shown).
  • a through hole 22 (see Figure 4) is formed in the center of the circular blade body 2, penetrating the circular blade body 2 in the thickness direction.
  • three through holes 23 are formed around the through hole 22 in the circular blade body 2, which fit into positioning bosses (not shown) attached to the device to position (attach) the device and the circular blade 1 (see FIG. 4).
  • the number of through holes 23 may be one or more.
  • the resin part 3 is attached to the surface of the circular blade body 2 so as to cover the side edge of the through hole 22.
  • the resin part 3 is formed with mounting holes 4 for mounting the circular blade 1 to a cutting device for cutting a film (see Figs. 3 and 6). A more specific configuration of the resin part 3 will be described below.
  • the resin part 3 is composed of a first resin plate 5 (see Figures 6 and 7) arranged on one side of the circular blade body 2 (right side in Figure 3), and a second resin plate 6 (see Figures 8 and 9) arranged on the other side of the circular blade body 2.
  • the first resin plate 5 has a first hole 51 in the center thereof that constitutes the mounting hole 4.
  • the first hole 5 has a first boss 52, which is a cylindrical protrusion that fits into the through hole 22, formed on the periphery thereof.
  • a hole 53 is formed around the first hole 51 in the first resin plate 5 at a position that is coaxial with the through hole 23 of the circular blade body 2 when the first resin plate 5 is attached to the circular blade body 2.
  • a positioning boss 54 is provided on the periphery of the hole 53.
  • a second hole 61 is formed in the center of the second resin plate 6, which is coaxial with the first hole 51.
  • the second hole 61 fits into the outside of the first boss 52, so that the circular blade body 2 can be sandwiched and held between the surface of the first resin plate 5 and the surface of the second resin plate 6.
  • a hole 62 that fits into the positioning boss 54 is provided around the second hole 61 in the second resin plate 6.
  • the mounting hole 4 in the resin part 3 can be used to attach the circular blade to the shaft of the device (slitter).
  • the positioning accuracy of the circular blade was sometimes insufficient due to problems with the processing accuracy of the circular blade.
  • the resin part 3 is molded, so the mounting hole 4 can be formed with the precision of molding. This improves the positioning accuracy of the circular blade.
  • the slitter device can stably perform the task of cutting the film by intermittently rotating the circular blade. In other words, according to this embodiment, even if the press processing precision of the circular blade is insufficient, it is possible to attach the circular blade to the slitter with high precision.
  • the circular blade body 2 can be sharpened after the resin portion 3 is attached to the circular blade body 2 before sharpening.
  • the blade can be sharpened using the mounting hole 4, which is formed with high precision, as a reference, improving the sharpening accuracy.
  • circular blades for cutting films are thin and therefore prone to deformation, but the resin portion 3 can suppress deformation of the circular blade body 2, so in this respect too, the processing accuracy in sharpening the blade can be improved and processing can be made easier.
  • the deterioration of the positioning accuracy of the circular blade 1 can be suppressed, so that the mass productivity of the circular blade 1 can be improved and manufacturing costs can be reduced.
  • the inner surface of the mounting hole 4 of the circular blade 1 is covered with the resin part 3, so when the circular blade 1 is attached to the rotating shaft of the slitter device, the rotating shaft is not damaged, but the resin part 3 is. If the rotating shaft is damaged, repair costs will increase, but in this embodiment, the circular blade 1, which is a consumable item that is replaced periodically, is worn, so there is also the advantage that the maintenance costs of the device can be reduced.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)

Abstract

One purpose of the present invention is to attach a circular blade to a device side with high precision. Another purpose of the present invention is to increase the cutting edge precision when edging a circular blade and facilitate processing. A circular blade 1 for cutting films according to the present invention comprises: a disc-like circular blade body 2; and a resin part 3 attached to the circular blade body 2. Formed on the outer circumference of the circular blade body 2 is an edge 21 for cutting films. Formed at the center of the circular blade body 2 is a through-hole 22 that penetrates the circular blade body 2 in the thickness direction. The resin part 3 is attached to the surface of the circular blade body 2 so as to cover the lateral edge of the through-hole 22. The resin part 3 has formed therein an attachment hole 4 for attachment of the circular blade 1 to a cutting device for cutting films.

Description

フィルム切断用円形刃Film cutting circular blade
　本発明は、フィルム切断用のスリッタ（切断装置）に装着されてフィルムを切断するための円形刃に関するものである。 The present invention relates to a circular blade that is attached to a film slitter (cutting device) to cut the film.
　下記特許文献１に記載のように、円形刃を用いてフィルムを切断するためのスリッタが知られている。このスリッタでは、フィルムを所定量切断するごとに円形刃を間欠的に回転させることにより、円形刃上の別の位置で切断を行うことができる。円形刃を連続的に回転させつつフィルムを切断するスリッタも知られている。 As described in Patent Document 1 below, a slitter is known for cutting film using a circular blade. With this slitter, the circular blade is rotated intermittently each time a predetermined amount of film is cut, allowing the cut to be performed at a different position on the circular blade. Slitters that cut film while continuously rotating the circular blade are also known.
　ところでスリッタにおいては、フィルムと円形刃との接触位置（空間上での位置）や接触角を維持するためには円形刃の位置精度が極めて高くなければならない。フィルムと円形刃との接触位置や接触角が変化すると、フィルム切断性能に影響する可能性がある。 In a slitter, the positional precision of the circular blade must be extremely high in order to maintain the contact position (position in space) and contact angle between the film and the circular blade. Changes in the contact position or contact angle between the film and the circular blade can affect the film cutting performance.
　一般に、円形刃の軸心位置には、装置側（軸側）に装着するために取付孔が形成される。この取付孔の形成には、通常、機械加工が用いられる。しかしながら、機械加工の加工精度によっては、スリッタ用円形刃として十分な位置精度が出ないことがあるという問題がある。すなわち、従来の技術では、円形刃の位置精度について改善の余地があった。 Generally, a mounting hole is formed at the axial center of the circular blade to attach it to the device (shaft side). This mounting hole is usually formed by machining. However, there is a problem in that, depending on the machining accuracy, it may not be possible to achieve sufficient positional accuracy for a circular blade for a slitter. In other words, with conventional technology, there was room for improvement in the positional accuracy of the circular blade.
特開２０１８－１６４９５５号公報JP 2018-164955 A
　また、円形刃をプレス加工で製造することができれば、量産性が向上し、製造コストを下げることができる。しかしながらプレス加工の加工精度は、バリなどの影響により一般的に低く、前記した位置精度の条件を満たすことが難しい。また、プレスを用いる場合、打ち抜きの容易性のために肉厚を薄くする必要があるが、肉厚を薄くすると刃付け加工の作業工程が煩雑化し、しかも加工精度が低くなるという問題もある。 Furthermore, if circular blades could be manufactured by press processing, mass productivity would improve and manufacturing costs could be reduced. However, the processing accuracy of press processing is generally low due to the effects of burrs and the like, making it difficult to meet the above-mentioned positional accuracy conditions. Furthermore, when using a press, it is necessary to make the material thin to make punching easier, but making the material thin complicates the blade processing process and also creates the problem of lowering the processing accuracy.
　本発明は、前記した状況に鑑みてなされたものである。本発明の主な目的は、円形刃に対する機械加工の精度が不十分であっても、高い精度で円形刃をスリッタに取り付けることができる技術を提供することである。さらに、本発明の他の目的は、円形刃の刃付け加工における加工精度を向上させるとともに加工を容易とする技術を提供することである。 The present invention has been made in consideration of the above-mentioned circumstances. The main object of the present invention is to provide a technology that can attach a circular blade to a slitter with high accuracy even if the machining accuracy of the circular blade is insufficient. Furthermore, another object of the present invention is to provide a technology that improves the machining accuracy in the sharpening process of the circular blade and makes the process easier.
　本発明は、以下の項目に記載の発明として表現することができる。 The present invention can be expressed as the inventions described in the following items.
　（項目１）
　フィルム切断用の円形刃であって、円板状の円形刃本体と、この円形刃本体に取り付けられる樹脂部とを備えており、前記円形刃本体の外周部には、前記フィルムを切断するための刃部が形成されており、前記円形刃本体の中心には、この円形刃本体の厚さ方向に貫通する貫通孔が形成されており、前記樹脂部は、前記貫通孔の側縁を覆うようにして、前記円形刃本体の表面に取り付けられており、前記樹脂部には、前記円形刃を、前記フィルム切断用の切断装置に取り付けるための取付孔が形成されている円形刃。 (Item 1)
A circular blade for cutting a film, comprising a disk-shaped circular blade body and a resin part attached to the circular blade body, a blade part for cutting the film formed on the outer periphery of the circular blade body, a through hole penetrating the circular blade body in the thickness direction at the center of the circular blade body, the resin part attached to the surface of the circular blade body so as to cover the side edges of the through hole, and a mounting hole formed in the resin part for mounting the circular blade to a cutting device for cutting the film.
　（項目２）
　前記樹脂部は、前記円形刃本体の一面側に配置される第１樹脂板と、前記円形刃本体の他面側に配置される第２樹脂板とを有しており、前記第１樹脂板の略中心部には、前記取付孔の一部を構成する第１孔部が形成されており、前記第１孔部の周縁には、前記貫通孔の内部に嵌合される第１ボスが形成されており、前記第２樹脂板の略中心部には、前記第１孔部と同軸とされた第２孔部が形成されており、前記第２孔部は、前記第１ボスの外側に嵌合し、これによって、前記第１樹脂板の表面と前記第２樹脂板の表面との間に前記円形刃本体を挟み込んで保持できるようになっている項目１に記載の円形刃。 (Item 2)
2. The circular blade according to item 1, wherein the resin part has a first resin plate arranged on one side of the circular blade body and a second resin plate arranged on the other side of the circular blade body, a first hole portion constituting a part of the mounting hole is formed in approximately the center of the first resin plate, a first boss is formed on the periphery of the first hole portion and is fitted into the inside of the through hole, and a second hole portion coaxial with the first hole portion is formed in approximately the center of the second resin plate, and the second hole portion is fitted into the outside of the first boss, thereby allowing the circular blade body to be sandwiched and held between a surface of the first resin plate and a surface of the second resin plate.
　（項目３）
　間欠的に回転するようにスリッタに取り付けられて、停止状態においてフィルムを切断するための円形刃であって、
　円板状の円形刃本体と、この円形刃本体に取り付けられる樹脂部とを備えており、
　前記円形刃本体の外周部には、前記フィルムを切断するための刃部が形成されており、
　前記円形刃本体の中心には、この円形刃本体の厚さ方向に貫通する貫通孔（２２）が形成されており、
　前記樹脂部は、前記貫通孔の側縁を覆うようにして、前記円形刃本体の表面に取り付けられており、
　前記樹脂部には、前記円形刃を、前記フィルム切断用のスリッタに取り付けるための取付孔（４）が形成されており、
　前記円形刃本体の前記貫通孔（２２）の周囲の位置には、前記スリッタ側に設けられた位置決め用のボスに嵌合する、位置決め用の貫通孔（２３）が形成されており、
　前記樹脂部は、前記円形刃本体の一面側に配置される第１樹脂板（５）と、前記円形刃本体の他面側に配置される第２樹脂板（６）とを有しており、
　前記第１樹脂板の略中心部には、前記取付孔（４）の一部を構成する第１孔部（５１）が形成されており、前記第１孔部（５１）の周縁には、前記貫通孔（２２）の内部に嵌合される第１ボス（５２）が形成されており、
　前記第２樹脂板の略中心部には、前記第１孔部（５１）と同軸とされた第２孔部（６１）が形成されており、前記第２孔部（６１）は、前記第１ボスの外側に嵌合し、これによって、前記第１樹脂板の表面と前記第２樹脂板の表面との間に前記円形刃本体を挟み込んで保持できるようになっており、
　さらに、前記第１樹脂板における、前記第１孔部の周囲には、前記第１樹脂板を前記円形刃本体に取り付けた状態において前記位置決め用の貫通孔（２３）と同軸となる位置に位置決め用の孔部（５３）が形成されており、前記孔部（５３）の周縁には、位置決め用のボス（５４）が設けられており、
　前記第２樹脂板における、前記第２孔部（６１）の周囲には、前記位置決め用のボス（５４）に嵌合する位置決め用の孔部（６２）が設けられている
　円形刃。 (Item 3)
a circular blade attached to the slitter so as to rotate intermittently and for cutting the film in a stationary state,
The blade has a disk-shaped circular blade body and a resin part attached to the circular blade body.
A blade portion for cutting the film is formed on the outer periphery of the circular blade body,
A through hole (22) is formed in the center of the circular blade body, penetrating the circular blade body in the thickness direction,
The resin portion is attached to a surface of the circular blade body so as to cover a side edge of the through hole,
The resin portion has a mounting hole (4) for mounting the circular blade to a slitter for cutting the film,
A positioning through hole (23) is formed around the through hole (22) of the circular blade body, and the positioning through hole (23) is fitted into a positioning boss provided on the slitter side.
The resin portion has a first resin plate (5) arranged on one surface side of the circular blade body and a second resin plate (6) arranged on the other surface side of the circular blade body,
A first hole portion (51) constituting a part of the mounting hole (4) is formed in the approximate center of the first resin plate, and a first boss (52) fitted into the through hole (22) is formed on the periphery of the first hole portion (51),
A second hole portion (61) is formed in the approximate center of the second resin plate, the second hole portion (61) being coaxial with the first hole portion (51), and the second hole portion (61) is fitted into the outside of the first boss, whereby the circular blade body can be sandwiched and held between a surface of the first resin plate and a surface of the second resin plate,
Furthermore, a positioning hole (53) is formed around the first hole in the first resin plate at a position coaxial with the positioning through hole (23) when the first resin plate is attached to the circular blade body, and a positioning boss (54) is provided on the periphery of the hole (53),
The second resin plate has a positioning hole (62) formed around the second hole (61) and adapted to fit into the positioning boss (54).
　（項目４）
　前記第１ボス（５２）の先端、及び、前記位置決め用のボス（５４）の先端は、前記第２樹脂板（６）の表面と同じ位置になっており、表面方向に突出しないようになっている
　項目３に記載の円形刃。 (Item 4)
Item 4. The circular blade according to item 3, wherein a tip of the first boss (52) and a tip of the positioning boss (54) are positioned at the same position as the surface of the second resin plate (6) and do not protrude toward the surface.
　本発明の技術によれば、円形刃に対する機械加工の精度が不十分であっても、高い精度で円形刃をスリッタに取り付けることが可能になる。さらに、本発明によれば、刃付け前の円形刃本体に樹脂部を取り付けた後に刃付け加工を行うことにより、円形刃の刃付け加工の精度を向上させ、さらにはこの加工を容易とすることができる。 The technology of the present invention makes it possible to attach the circular blade to the slitter with high precision even if the machining precision of the circular blade is insufficient. Furthermore, according to the present invention, by attaching a resin part to the circular blade body before sharpening and then performing the sharpening process, the precision of the sharpening process of the circular blade can be improved and this process can be made easier.
本発明の一実施形態に係る円形刃の正面図である。FIG. 2 is a front view of a circular blade according to an embodiment of the present invention. 図１の右側面図である。FIG. 2 is a right side view of FIG. 1 . 図１のＡ－Ａ線に沿う要部拡大断面図である。2 is an enlarged cross-sectional view of a main portion taken along line AA in FIG. 1. 図１の円形刃に用いられる円形刃本体の正面図である。FIG. 2 is a front view of a circular blade body used in the circular blade of FIG. 1 . 図３中Ｂ部分の拡大断面図である。FIG. 4 is an enlarged cross-sectional view of a portion B in FIG. 3 . 図１の円形刃に用いられる第１樹脂板の正面図である。FIG. 2 is a front view of a first resin plate used in the circular blade of FIG. 1 . 図６のＣ－Ｃ線に沿う断面図である。7 is a cross-sectional view taken along line CC in FIG. 6. 図１の円形刃に用いられる第２樹脂板の正面図である。FIG. 2 is a front view of a second resin plate used in the circular blade of FIG. 1 . 図８のＤ－Ｄ線に沿う断面図である。9 is a cross-sectional view taken along line DD in FIG. 8.
　本発明の一実施形態に係る、フィルム切断用の円形刃１を、添付の図面を参照しながら説明する。この円形刃１は、円板状の円形刃本体２と、この円形刃本体２に取り付けられる樹脂部３とから構成されている（図１及び図２参照）。 A circular blade 1 for cutting film according to one embodiment of the present invention will be described with reference to the attached drawings. This circular blade 1 is composed of a disk-shaped circular blade body 2 and a resin part 3 attached to this circular blade body 2 (see Figs. 1 and 2).
　（円形刃）
　円形刃本体２の外周部には、フィルム（図示せず）を切断するための刃部２１（図３及び図５参照）が形成されている。 (Circular blade)
The circular blade body 2 has a blade portion 21 (see FIGS. 3 and 5) formed on the outer periphery thereof for cutting a film (not shown).
　円形刃本体２の中心には、円形刃本体２の厚さ方向に貫通する貫通孔２２（図４参照）が形成されている。 A through hole 22 (see Figure 4) is formed in the center of the circular blade body 2, penetrating the circular blade body 2 in the thickness direction.
　さらに、円形刃本体２における、貫通孔２２の周囲の位置には、装置側に取り付けられた位置決め用のボス（図示せず）に嵌合して、装置と円形刃１との位置決め（装着）を行うための三つの貫通孔２３が形成されている（図４参照）。貫通孔２３の数は１以上であればよい。 Furthermore, three through holes 23 are formed around the through hole 22 in the circular blade body 2, which fit into positioning bosses (not shown) attached to the device to position (attach) the device and the circular blade 1 (see FIG. 4). The number of through holes 23 may be one or more.
　（樹脂部）
　樹脂部３は、貫通孔２２の側縁を覆うようにして、円形刃本体２の表面に取り付けられている。樹脂部３には、円形刃１を、フィルム切断用の切断装置に取り付けるための取付孔４が形成されている（図３及び図６参照）。以下、樹脂部３のさらに具体的な構成について説明する。 (Resin part)
The resin part 3 is attached to the surface of the circular blade body 2 so as to cover the side edge of the through hole 22. The resin part 3 is formed with mounting holes 4 for mounting the circular blade 1 to a cutting device for cutting a film (see Figs. 3 and 6). A more specific configuration of the resin part 3 will be described below.
　樹脂部３は、円形刃本体２の一面側（図３中右側）に配置される第１樹脂板５（図６及び図７参照）と、円形刃本体２の他面側に配置される第２樹脂板６（図８及び図９参照）とから構成されている。 The resin part 3 is composed of a first resin plate 5 (see Figures 6 and 7) arranged on one side of the circular blade body 2 (right side in Figure 3), and a second resin plate 6 (see Figures 8 and 9) arranged on the other side of the circular blade body 2.
　第１樹脂板５の中心部には、取付孔４を構成する第１孔部５１が形成されている。第１孔部５の周縁には、貫通孔２２の内部に嵌合される円筒状の突起である第１ボス５２が形成されている。 The first resin plate 5 has a first hole 51 in the center thereof that constitutes the mounting hole 4. The first hole 5 has a first boss 52, which is a cylindrical protrusion that fits into the through hole 22, formed on the periphery thereof.
　さらに、第１樹脂板５における、前記第１孔部５１の周囲には、第１樹脂板５を円形刃本体２に取り付けた状態において円形刃本体２の貫通孔２３と同軸となる位置に孔部５３が形成されている。孔部５３の周縁には、位置決め用のボス５４が設けられている。 Furthermore, a hole 53 is formed around the first hole 51 in the first resin plate 5 at a position that is coaxial with the through hole 23 of the circular blade body 2 when the first resin plate 5 is attached to the circular blade body 2. A positioning boss 54 is provided on the periphery of the hole 53.
　第２樹脂板６の中心部には、第１孔部５１と同軸とされた第２孔部６１が形成されている。第２孔部６１は、第１ボス５２の外側に嵌合し、これによって、第１樹脂板５の表面と第２樹脂板６の表面との間に円形刃本体２を挟み込んで保持できるようになっている。 A second hole 61 is formed in the center of the second resin plate 6, which is coaxial with the first hole 51. The second hole 61 fits into the outside of the first boss 52, so that the circular blade body 2 can be sandwiched and held between the surface of the first resin plate 5 and the surface of the second resin plate 6.
　第２樹脂板６における、第２孔部６１の周囲には、前記位置決め用のボス５４に嵌合する孔部６２が設けられている。 A hole 62 that fits into the positioning boss 54 is provided around the second hole 61 in the second resin plate 6.
　本実施形態の円形刃１では、樹脂部３の取付孔４を利用して円形刃を装置（スリッタ）の軸に取り付けることができる。ここで従来は、円形刃の加工精度の問題により、円形刃の位置決め精度が不十分となることがあった。これに対して本実施形態の円形刃では、樹脂部３をモールド成形することにより、取付孔４をモールド成形の精度で形成することができる。これにより円形刃の位置決め精度を改善することができる。するとスリッタ装置において、円形刃を間欠的に回転させてフィルムを切断する作業を安定的に行うことができるという利点がある。すなわち本実施形態によれば、円形刃に対するプレス加工精度が不十分であっても、高い精度で円形刃をスリッタに取り付けることが可能になる。 In the circular blade 1 of this embodiment, the mounting hole 4 in the resin part 3 can be used to attach the circular blade to the shaft of the device (slitter). Conventionally, the positioning accuracy of the circular blade was sometimes insufficient due to problems with the processing accuracy of the circular blade. In contrast, in the circular blade of this embodiment, the resin part 3 is molded, so the mounting hole 4 can be formed with the precision of molding. This improves the positioning accuracy of the circular blade. This has the advantage that the slitter device can stably perform the task of cutting the film by intermittently rotating the circular blade. In other words, according to this embodiment, even if the press processing precision of the circular blade is insufficient, it is possible to attach the circular blade to the slitter with high precision.
　また本実施形態では、刃付け前の円形刃本体２に樹脂部３を取り付けた後に円形刃本体２に刃付けを行うことができる。このようにすると、高精度で形成された取付孔４を基準として刃付けを行うことができるので、刃付け精度を向上させることができる。しかも、フィルム切断用の円形刃は薄肉であるため変形しやすいが、樹脂部３により円形刃本体２の変形を抑制できるので、この点でも刃付けにおける加工精度を向上させることができ、しかも加工を容易とすることができる。 In addition, in this embodiment, the circular blade body 2 can be sharpened after the resin portion 3 is attached to the circular blade body 2 before sharpening. In this way, the blade can be sharpened using the mounting hole 4, which is formed with high precision, as a reference, improving the sharpening accuracy. Furthermore, circular blades for cutting films are thin and therefore prone to deformation, but the resin portion 3 can suppress deformation of the circular blade body 2, so in this respect too, the processing accuracy in sharpening the blade can be improved and processing can be made easier.
　さらに本実施形態では、プレス加工により円形刃本体２を製造した場合であっても、円形刃１の位置決め精度の低下を抑制できるので、円形刃１の量産性を向上させて、製造コストを低減させることができる。 Furthermore, in this embodiment, even if the circular blade body 2 is manufactured by press processing, the deterioration of the positioning accuracy of the circular blade 1 can be suppressed, so that the mass productivity of the circular blade 1 can be improved and manufacturing costs can be reduced.
　また本実施形態では、円形刃１の取付孔４の内面を樹脂部３で覆っているので、円形刃１をスリッタ装置の回転軸に取り付けた場合において、回転軸を損耗させず、樹脂部３を損耗させることになる。回転軸を傷つけてしまうと修理コストが増大してしまうが、本実施形態では、消耗品であって定期的に交換される円形刃１を損耗させているので、装置の維持コストを低減させることができるという利点もある。 In addition, in this embodiment, the inner surface of the mounting hole 4 of the circular blade 1 is covered with the resin part 3, so when the circular blade 1 is attached to the rotating shaft of the slitter device, the rotating shaft is not damaged, but the resin part 3 is. If the rotating shaft is damaged, repair costs will increase, but in this embodiment, the circular blade 1, which is a consumable item that is replaced periodically, is worn, so there is also the advantage that the maintenance costs of the device can be reduced.
　なお、前記実施形態の記載は単なる一例に過ぎず、本発明に必須の構成を示したものではない。各部の構成は、本発明の趣旨を達成できるものであれば、上記に限らない。 Note that the above embodiment is merely an example and does not indicate the essential configuration of the present invention. The configuration of each part is not limited to the above as long as it can achieve the purpose of the present invention.
　１　円形刃
　２　円形刃本体
　２１　刃部
　２２　軸取付用の貫通孔
　２３　位置決め用の貫通孔
　３　樹脂部
　４　取付孔
　５　第１樹脂板
　５１　第１孔部
　５２　第１ボス
　５３　位置決め用の孔部
　５４　位置決め用のボス
　６　第２樹脂板
　６１　第２孔部
　６２　位置決め用の孔部 REFERENCE SIGNS LIST 1 Circular blade 2 Circular blade body 21 Blade portion 22 Through hole for mounting shaft 23 Through hole for positioning 3 Resin portion 4 Mounting hole 5 First resin plate 51 First hole portion 52 First boss 53 Hole portion for positioning 54 Boss for positioning 6 Second resin plate 61 Second hole portion 62 Hole portion for positioning

Claims (4)

  1. 　フィルム切断用の円形刃であって、
    　円板状の円形刃本体と、この円形刃本体に取り付けられる樹脂部とを備えており、
    　前記円形刃本体の外周部には、前記フィルムを切断するための刃部が形成されており、
    　前記円形刃本体の中心には、この円形刃本体の厚さ方向に貫通する貫通孔が形成されており、
    　前記樹脂部は、前記貫通孔の側縁を覆うようにして、前記円形刃本体の表面に取り付けられており、
    　前記樹脂部には、前記円形刃を、前記フィルム切断用の切断装置に取り付けるための取付孔が形成されている
    　円形刃。     A circular blade for cutting film,
    The blade has a disk-shaped circular blade body and a resin part attached to the circular blade body.
    A blade portion for cutting the film is formed on the outer periphery of the circular blade body,
    A through hole is formed in the center of the circular blade body, the through hole penetrating the circular blade body in the thickness direction,
    The resin portion is attached to a surface of the circular blade body so as to cover a side edge of the through hole,
    The resin portion has a mounting hole formed therein for mounting the circular blade to a cutting device for cutting the film.
  2. 　前記樹脂部は、前記円形刃本体の一面側に配置される第１樹脂板と、前記円形刃本体の他面側に配置される第２樹脂板とを有しており、
    　前記第１樹脂板の略中心部には、前記取付孔の一部を構成する第１孔部が形成されており、前記第１孔部の周縁には、前記貫通孔の内部に嵌合される第１ボスが形成されており、
    　前記第２樹脂板の略中心部には、前記第１孔部と同軸とされた第２孔部が形成されており、前記第２孔部は、前記第１ボスの外側に嵌合し、これによって、前記第１樹脂板の表面と前記第２樹脂板の表面との間に前記円形刃本体を挟み込んで保持できるようになっている
    　請求項１に記載の円形刃。     the resin portion includes a first resin plate disposed on one surface side of the circular blade body and a second resin plate disposed on the other surface side of the circular blade body,
    a first hole portion constituting a part of the mounting hole is formed in an approximately central portion of the first resin plate, and a first boss is formed on a periphery of the first hole portion to be fitted into the through hole,
    The circular blade according to claim 1, wherein a second hole portion coaxial with the first hole portion is formed in approximately the center of the second resin plate, and the second hole portion fits into the outside of the first boss, thereby enabling the circular blade body to be sandwiched and held between the surface of the first resin plate and the surface of the second resin plate.
  3. 　間欠的に回転するようにスリッタに取り付けられて、停止状態においてフィルムを切断するための円形刃であって、
    　円板状の円形刃本体と、この円形刃本体に取り付けられる樹脂部とを備えており、
    　前記円形刃本体の外周部には、前記フィルムを切断するための刃部が形成されており、
    　前記円形刃本体の中心には、この円形刃本体の厚さ方向に貫通する貫通孔（２２）が形成されており、
    　前記樹脂部は、前記貫通孔の側縁を覆うようにして、前記円形刃本体の表面に取り付けられており、
    　前記樹脂部には、前記円形刃を、前記フィルム切断用のスリッタに取り付けるための取付孔（４）が形成されており、
    　前記円形刃本体の前記貫通孔（２２）の周囲の位置には、前記スリッタ側に設けられた位置決め用のボスに嵌合する、位置決め用の貫通孔（２３）が形成されており、
    　前記樹脂部は、前記円形刃本体の一面側に配置される第１樹脂板（５）と、前記円形刃本体の他面側に配置される第２樹脂板（６）とを有しており、
    　前記第１樹脂板の略中心部には、前記取付孔（４）の一部を構成する第１孔部（５１）が形成されており、前記第１孔部（５１）の周縁には、前記貫通孔（２２）の内部に嵌合される第１ボス（５２）が形成されており、
    　前記第２樹脂板の略中心部には、前記第１孔部（５１）と同軸とされた第２孔部（６１）が形成されており、前記第２孔部（６１）は、前記第１ボスの外側に嵌合し、これによって、前記第１樹脂板の表面と前記第２樹脂板の表面との間に前記円形刃本体を挟み込んで保持できるようになっており、
    　さらに、前記第１樹脂板における、前記第１孔部の周囲には、前記第１樹脂板を前記円形刃本体に取り付けた状態において前記位置決め用の貫通孔（２３）と同軸となる位置に位置決め用の孔部（５３）が形成されており、前記孔部（５３）の周縁には、位置決め用のボス（５４）が設けられており、
    　前記第２樹脂板における、前記第２孔部（６１）の周囲には、前記位置決め用のボス（５４）に嵌合する位置決め用の孔部（６２）が設けられている
    　円形刃。     a circular blade attached to the slitter so as to rotate intermittently and for cutting the film in a stationary state,
    The blade has a disk-shaped circular blade body and a resin part attached to the circular blade body.
    A blade portion for cutting the film is formed on the outer periphery of the circular blade body,
    A through hole (22) is formed in the center of the circular blade body, penetrating the circular blade body in the thickness direction,
    The resin portion is attached to a surface of the circular blade body so as to cover a side edge of the through hole,
    The resin portion has an attachment hole (4) for attaching the circular blade to a slitter for cutting the film,
    A positioning through hole (23) is formed around the through hole (22) of the circular blade body, and the positioning through hole (23) is fitted into a positioning boss provided on the slitter side.
    The resin portion has a first resin plate (5) arranged on one surface side of the circular blade body and a second resin plate (6) arranged on the other surface side of the circular blade body,
    A first hole portion (51) constituting a part of the mounting hole (4) is formed in the approximate center of the first resin plate, and a first boss (52) fitted into the through hole (22) is formed on the periphery of the first hole portion (51),
    A second hole portion (61) is formed in the approximate center of the second resin plate, the second hole portion (61) being coaxial with the first hole portion (51), and the second hole portion (61) is fitted into the outside of the first boss, whereby the circular blade body can be sandwiched and held between a surface of the first resin plate and a surface of the second resin plate,
    Furthermore, a positioning hole (53) is formed around the first hole in the first resin plate at a position coaxial with the positioning through hole (23) when the first resin plate is attached to the circular blade body, and a positioning boss (54) is provided on the periphery of the hole (53),
    The second resin plate has a positioning hole (62) formed around the second hole (61) and adapted to fit into the positioning boss (54).
  4. 　前記第１ボス（５２）の先端、及び、前記位置決め用のボス（５４）の先端は、前記第２樹脂板（６）の表面と同じ位置になっており、表面方向に突出しないようになっている
    　請求項３に記載の円形刃。     The circular blade according to claim 3, wherein a tip of the first boss (52) and a tip of the positioning boss (54) are positioned at the same position as the surface of the second resin plate (6) and do not protrude toward the surface.
PCT/JP2023/031146 2022-09-29 2023-08-29 Circular blade for cutting films WO2024070403A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6452686U (en) * 1987-09-28 1989-03-31
JPH11156782A (en) * 1997-11-21 1999-06-15 Copal Co Ltd Rotary knife and cutting device using rotary knife
JP2022018462A (en) * 2020-07-15 2022-01-27 株式会社東京精密 Cutting blade and cutting blade manufacturing method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018018642A (en) * 2016-07-27 2018-02-01 株式会社日立製作所 X-ray tube device and x-ray ct apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6452686U (en) * 1987-09-28 1989-03-31
JPH11156782A (en) * 1997-11-21 1999-06-15 Copal Co Ltd Rotary knife and cutting device using rotary knife
JP2022018462A (en) * 2020-07-15 2022-01-27 株式会社東京精密 Cutting blade and cutting blade manufacturing method

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