JPH10315183A - Sheet material cutting device - Google Patents
Sheet material cutting deviceInfo
- Publication number
- JPH10315183A JPH10315183A JP13917497A JP13917497A JPH10315183A JP H10315183 A JPH10315183 A JP H10315183A JP 13917497 A JP13917497 A JP 13917497A JP 13917497 A JP13917497 A JP 13917497A JP H10315183 A JPH10315183 A JP H10315183A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- sheet material
- blade
- angle
- degrees
- 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.)
- Pending
Links
Landscapes
- Nonmetal Cutting Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば印画紙のよ
うな感光剤など塗布剤が塗布されたシー卜材を切断する
シート材切断装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material cutting apparatus for cutting a sheet material coated with a coating agent such as a photosensitive agent such as photographic paper.
【０００２】[0002]
【従来の技術】従来のシート材料切断装置は、回転刃と
固定刃からなるもの（たとえば実公昭４５−１６８６９
号公報、実公昭４８−５９０９号公報）あるいは固定刃
の刃先線に対して直角方向に直線的な移動をする可動刃
からなるもの（実公昭５８−３７５９４号公報など）な
どが知られているが、厚紙などの切断には切断線の安定
する２枚の直線刃を交差圧接して切断するシート材切断
装置が好ましい。2. Description of the Related Art A conventional sheet material cutting apparatus comprises a rotary blade and a fixed blade (for example, Japanese Utility Model Publication No. 45-16869).
Japanese Patent Publication No. 48-5909), or a movable blade that moves linearly in a direction perpendicular to the edge of a fixed blade (Japanese Patent Publication No. 58-37594). However, for cutting thick paper or the like, a sheet material cutting apparatus that cuts two straight blades with stable cutting lines by cross-pressing them is preferable.
【０００３】かかる切断装置により厚手の用紙などを切
断するときは、図２に示すような切断面のけばだちを避
けるために先鋭な刃先になるように刃先角度を小さくと
る場合が多い。一方、感光剤などが塗布された印画紙な
どのシート材を切断する際には切り口部分の感光剤が剥
離して現像後に切り口周辺に汚れの着色が生ずることが
ある。このような感光剤の剥離は、刃先が食い込んでシ
ート材のベースと感光剤の間にずれが起こった場合に発
生する。このような感光剤などの剥離は、フィルム等の
ように画像面のシート材料と感光剤などとの接着力が微
弱なものや感光剤などの層が厚いものの場合、あるいは
刃先が鋭角で感光剤にくい込み易い刃物の場合に発生し
易い傾向にある。[0003] When cutting thick paper or the like with such a cutting device, the cutting edge angle is often set small so as to form a sharp cutting edge in order to avoid flaking of the cut surface as shown in FIG. On the other hand, when cutting a sheet material such as photographic paper to which a photosensitive agent or the like has been applied, the photosensitive agent at the cut portion may be peeled off and stains may occur around the cut after development. Such peeling of the photosensitive agent occurs when the edge of the blade cuts into the gap between the base of the sheet material and the photosensitive agent. Such peeling of the photosensitive agent or the like occurs when the adhesive strength between the sheet material on the image surface and the photosensitive agent, such as a film, is weak or when the layer of the photosensitive agent is thick, or when the cutting edge is sharp and the photosensitive agent is sharp. It tends to occur in the case of a blade that is easily embedded.
【０００４】そこでこれを防止するために、出願人は先
に切断刃物のすくい角をマイナスにしたシート材切断装
置を開示した（実開平１−８１２９２号公報）。[0004] In order to prevent this, the applicant has previously disclosed a sheet material cutting apparatus in which the rake angle of the cutting blade is minus (Japanese Utility Model Laid-Open No. 1-81292).
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前記実
開平１−８１２９２号公報記載のシート材切断装置のよ
うにすくい角をマイナスにすることは感光剤の剥離の防
止には効果があるが、刃先角度が大きく鈍角になるため
に印画紙などの厚紙の切断の際には切断面がけばだつと
いう欠点が解決できない。However, making the rake angle minus as in the sheet material cutting apparatus described in Japanese Utility Model Laid-Open Publication No. 1-81292 is effective in preventing the photosensitive agent from peeling off. Since the angle is large and obtuse, it cannot solve the drawback that the cut surface is fuzzy when cutting thick paper such as photographic paper.
【０００６】そこで本発明は、固定刃と可動刃を交差圧
接して切断する切断装置において、印画紙などの塗布剤
を塗布した厚紙の切断においても前記欠点のないシート
材切断装置を提供することを目的とするものである。SUMMARY OF THE INVENTION Accordingly, the present invention provides a sheet cutting apparatus which cuts a fixed blade and a movable blade by cross pressure contact and which does not have the above-mentioned drawback even when cutting thick paper coated with a coating material such as photographic paper. It is intended for.
【０００７】[0007]
【課題を解決するための手段】上記問題点を解決するた
めに、本発明のシート材切断装置は、固定刃と可動刃を
交差圧接して塗布剤が塗布されたシート材を切断するシ
ート材切断装置において、前記塗布剤に接する側の刃物
のすくい面が前記シート材のパスラインに対し０度以
上、１０度以下の角度をなし、前記固定刃の刃先角度と
可動刃の刃先角度の和が１０５度以上、１２５度以下で
あることを特徴とするものである。In order to solve the above problems, a sheet material cutting apparatus of the present invention cross-presses a fixed blade and a movable blade to cut a sheet material coated with an application material. In the cutting device, the rake face of the blade in contact with the coating material forms an angle of 0 ° or more and 10 ° or less with respect to the sheet material pass line, and the sum of the fixed blade edge angle and the movable blade edge angle. Is 105 degrees or more and 125 degrees or less.
【０００８】即ち、本発明のシート材切断装置は、固定
刃の刃先角度と可動刃の刃先角度の和を１０５度〜１２
５度の範囲にして刃先角度を鋭利にし、厚紙などの切断
においても綺麗に切断でき切断面のけばだちを防止する
ものである。一方、塗布剤に接する側の刃物のすくい面
をシート材のパスラインに対し０〜１０度と小さくなる
ように配設することにより、塗布剤への刃物のくい込み
を少なくし、シート材のベースと塗布剤のずれを減少し
て塗布剤の剥離を防止し、例えば印画紙などの切断にお
いて切断面近傍の着色を防止しようとするものである。
ここで刃物のすくい面とは図１の１ｂ，２ｂに示すよう
に切断刃の進行方向に向く刃先面をいうものである。That is, in the sheet material cutting apparatus of the present invention, the sum of the cutting edge angle of the fixed blade and the cutting edge angle of the movable blade is set to 105 ° to 12 °.
The angle of the blade edge is set to be sharp in the range of 5 degrees, and the cutting can be performed neatly even when cutting thick paper or the like, thereby preventing the cut surface from being flickered. On the other hand, by arranging the rake face of the blade in contact with the coating material so as to be 0 to 10 degrees with respect to the pass line of the sheet material, cutting of the blade into the coating material is reduced, and the base of the sheet material is reduced. And to prevent the coating material from peeling off, for example, to prevent coloring near the cut surface when cutting photographic paper or the like.
Here, the rake face of the cutting tool refers to a cutting edge face directed in the traveling direction of the cutting blade as shown in 1b and 2b of FIG.
【０００９】なお、前記実開平１−８１２９２号公報記
載のシート材切断装置では切断線のずれを少なくして前
記感光剤などの剥離を減少するために、シート材の感光
剤塗布側を固定刃側におくようにしたが、２枚の直線刃
を交差圧接して切断するスライド式シート材切断装置で
は、通常固定刃側が裏側になるために塗布面を裏側にし
て切断することは不便である。本発明の切断装置によれ
ば、可動刃、固定刃のいずれかの塗布剤に接する側の刃
物のすくい面をシート材のパスラインに対し０〜１０度
にすればよく、塗布面を表側の可動刃側にして切断する
ことができるので便利である。In the sheet material cutting apparatus described in Japanese Utility Model Laid-Open Publication No. 1-81292, the photosensitive material-applied side of the sheet material is fixed with a fixed blade in order to reduce the deviation of the cutting line and reduce the separation of the photosensitive material. However, in a slide type sheet material cutting device that cuts two linear blades by cross pressure contact, it is inconvenient to cut with the application surface on the back side because the fixed blade side is usually on the back side. . According to the cutting device of the present invention, the rake face of the movable blade or the fixed blade on the side in contact with the coating agent may be set to 0 to 10 degrees with respect to the sheet material pass line, and the coating surface is set to the front side. It is convenient because it can be cut on the movable blade side.
【００１０】ここで刃物のすくい面とシート材のパスラ
インとの角度を０度以上、１０度以下としたのは、１０
度以上では刃物が食い込み過ぎて剥離が生じ、０度以下
では刃先が鈍くなりけばだちを生ずるからである。ま
た、固定刃の刃先角度と可動刃の刃先角度の和を１０５
度以上、１２５度以下とするのは、一つは１０５度以下
では厚紙などではシート材の切断面が斜めになり過ぎた
り、紙ずれが生ずることがあるからである。いま一つ
は、１０５度以下では一対の刃物のうち少なくともどち
らか一方の刃先が鋭利になり過ぎ、経験的には刃先角度
が３０度以下になると刃欠やかじりつきが発生しやすく
なるからである。一方、１２５度以上では刃先が鈍くな
りけばだちが生ずるからである。Here, the reason why the angle between the rake face of the blade and the pass line of the sheet material is set to 0 degree or more and 10 degrees or less is 10 degrees.
If it is higher than 0 degrees, the blade is too bite and peeling occurs, and if it is 0 degrees or less, if the cutting edge becomes dull, flaking occurs. The sum of the fixed blade edge angle and the movable blade edge angle is 105
The reason why the angle is not less than 125 degrees and not more than 125 degrees is that if the angle is not more than 105 degrees, the cut surface of the sheet material may be too oblique or a paper misalignment may occur in thick paper or the like. Another reason is that at 105 degrees or less, at least one of the blades of the pair of blades becomes too sharp, and empirically, when the blade angle is 30 degrees or less, chipping and galling tend to occur. . On the other hand, if the angle is 125 degrees or more, if the cutting edge becomes dull, flaking occurs.
【００１１】[0011]
【発明の実施の形態】以下、本発明のシート材切断装置
の１実施形態について具体的に説明する。図１は本発明
の切断装置の切断刃の断面構成を示す図である。図にお
いて直線状の刃先２ａを有する固定刃２はフレームに固
定されており、同じく直線状の刃先１ａを有する可動刃
１がその刃先を固定刃２の刃先２ａに褶接しながらＹ方
向に移動して、両刃先間でシート材Ｓを切断するように
なっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a sheet material cutting apparatus according to the present invention will be specifically described below. FIG. 1 is a diagram showing a cross-sectional configuration of a cutting blade of the cutting device of the present invention. In the figure, a fixed blade 2 having a linear blade 2a is fixed to a frame, and a movable blade 1 also having a linear blade 1a moves in the Y direction while folding the blade to the blade 2a of the fixed blade 2. Thus, the sheet material S is cut between the two cutting edges.
【００１２】上記構成のシート材切断装置において、表
面に乳剤を塗布された２８０μｍ厚さの印画紙のシート
材Ｓをその乳剤面Ｓ１を図の上側（可動刃側）にしてＸ
方向から挿入して切断した。この際に、固定刃２と可動
刃１の刃先角度、θ１，θ２と、それぞれの刃先のすく
い面１ｂ，２ｂとシート材のパスラインとのなす角度φ
１、φ２とを変えて切断状況を試験した。角度β１、β
２は、シート材のパスラインに垂直の線と固定刃２と可
動刃１の逃げ面１ｃ，２ｃとの角度を示す。なお、角度
β２はβ１より２度大きく、即ち固定刃２は可動刃１の
摺動方向に対して２度傾けて接するようにされているの
でβ２＝（β１＋２）度の関係になる。ここですくい面
とは前述のように切断刃の進行方向に向く刃先面１ｂ，
２ｂをいい、逃げ面とは進行方向に平行に向く面１ｃ，
２ｃをいう。この切断試験の結果を表１に示す。In the sheet material cutting apparatus having the above-mentioned structure, the sheet material S of 280 μm thick photographic paper having the emulsion coated on the surface is placed on the X side with the emulsion surface S1 on the upper side of the drawing (movable blade side).
Inserted from the direction and cut. At this time, the cutting edge angle between the fixed blade 2 and the movable blade 1, θ1 and θ2, and the angle φ between the rake faces 1b and 2b of each cutting edge and the pass line of the sheet material.
The cutting condition was tested by changing φ1 and φ2. Angles β1, β
Reference numeral 2 denotes an angle between a line perpendicular to the sheet material pass line and the flank surfaces 1c and 2c of the fixed blade 2 and the movable blade 1. The angle β2 is larger than β1 by 2 degrees, that is, since the fixed blade 2 is in contact with the movable blade 1 at an angle of 2 degrees with respect to the sliding direction, the relationship β2 = (β1 + 2) degrees. Here, the rake face refers to the cutting edge face 1b facing the direction of travel of the cutting blade as described above.
2b, and the flank is a surface 1c facing parallel to the traveling direction.
2c. Table 1 shows the results of the cutting test.
【００１３】[0013]
【表１】 [Table 1]
【００１４】表１の試験結果より以下のことが判った。
即ち、試料Ｎｏ．１と２において、刃先角度の和θ１＋
θ２＝１２０度の場合には切断面のけばは生じなかった
が、図２に示す切断近傍に濃い茶色の着色が生じた。こ
れは切断される印画紙のパスラインと可動刃１のすくい
面とのなす角度φ１がそれぞれ２４．５度、１７．０度
と大きいため、乳剤面Ｓ１に刃先が食い込み乳剤とベー
スの間にずれが生ずるためと思われる。この試料Ｎｏ．
１と２は、印画紙面を切断する角度β１を変えたもので
あるがβ１を１３度まで傾けて切断しても紙ずれは生じ
ないことが判った。From the test results in Table 1, the following was found.
That is, the sample No. In 1 and 2, the sum of the cutting edge angles θ1 +
In the case of θ2 = 120 degrees, no fuzz was generated on the cut surface, but a dark brown color was generated in the vicinity of the cut shown in FIG. This is because the angle φ1 formed between the pass line of the photographic paper to be cut and the rake face of the movable blade 1 is as large as 24.5 degrees and 17.0 degrees, respectively. This is probably due to a shift. This sample No.
In Nos. 1 and 2, the angle β1 at which the photographic paper surface was cut was changed, but it was found that no paper misalignment occurred even when β1 was inclined up to 13 degrees and cut.
【００１５】試料Ｎｏ．３〜５は、印画紙のパスライン
と可動刃１のすくい面とのなす角度φ１を２．０〜９．
５度と小さくしたものである。この場合は切断近傍の着
色は淡い茶色で実用上支障がない程度になったが、刃先
角度の和をθ１＋θ２＝１３０度に大きくとったため刃
先が鈍くなり切断面のけばだちが生じた。印画紙面を切
断する角度β１については試料Ｎｏ．１、２と同様であ
る。Sample No. 3-5, the angle φ1 between the photographic paper pass line and the rake face of the movable blade 1 is 2.0-9.
It is reduced to 5 degrees. In this case, the coloring near the cutting was light brown and was not a problem in practical use, but the sum of the cutting edge angles was large at θ1 + θ2 = 130 degrees, so that the cutting edge became dull, and the cut surface became fluffy. For the angle β1 for cutting the photographic paper surface, the sample No. Same as 1 and 2.
【００１６】試料Ｎｏ．６〜９は、前記実験結果にもと
づき印画紙のパスラインと可動刃１のすくい面とのなす
角度φ１を２．０〜９．５度と小さくし、かつ刃先角度
の和θ１＋θ２＝１２０〜１００度に変えて試験したも
のである。刃先角度の和θ１＋θ２＝１２０度にした試
料Ｎｏ．６、７では、けばは生ぜず着色も淡い茶色に止
どまった。試料Ｎｏ．８のθ１＋θ２＝１０５度にした
場合も、着色も淡い茶色に止どまり、かつ印画紙面を切
断する角度をβ１＝２１度まで大きくしても紙ずれは生
じないことが判った。しかし、試料Ｎｏ．９のθ１＋θ
２＝１００度にすると印画紙面を切断する角度β１＝２
６度と大きくなり紙ずれが生じた。Sample No. In Nos. 6 to 9, the angle φ1 between the photographic paper pass line and the rake face of the movable blade 1 is reduced to 2.0 to 9.5 degrees based on the above experimental results, and the sum of the cutting edge angles θ1 + θ2 = 120 to 100. The test was performed at different times. Sample No. with the sum of the edge angles θ1 + θ2 = 120 degrees. In Nos. 6 and 7, no fuzz was produced and the color remained pale brown. Sample No. 8, when θ1 + θ2 = 105 degrees, the coloring remained only light brown, and it was found that no paper misalignment occurred even if the angle at which the photographic paper surface was cut was increased to β1 = 21 degrees. However, the sample No. Θ1 + θ of 9
When 2 = 100 degrees, the angle β1 = 2 at which the photographic paper surface is cut
It was as large as 6 degrees, causing paper misalignment.
【００１７】以上の試験結果から、乳剤が表面に塗布さ
れた印画紙の切断において、乳剤面と可動刃１のすくい
面とのなす角度、即ち塗布面と塗布面に接する刃物のす
くい面とのなす角度φ１を０〜１０度とし、固定刃の刃
先角度と可動刃の刃先角度の和を１０５〜１２５度にす
れば、印画紙などの切断においても着色も少なくけばも
ない切断ができると判断した。From the above test results, the angle between the emulsion surface and the rake surface of the movable blade 1 when cutting the photographic paper coated with the emulsion surface, that is, the angle between the coated surface and the rake surface of the blade in contact with the coated surface. When the angle φ1 to be formed is 0 to 10 degrees and the sum of the fixed blade edge angle and the movable blade edge angle is 105 to 125 degrees, it is possible to perform cutting with less coloring and less fragility even when cutting photographic paper. It was judged.
【００１８】[0018]
【発明の効果】以上説明したように本発明の固定刃と可
動刃を交差圧接して切断するシート材切断装置によれ
ば、印画紙などのように塗布剤が塗布されたシート材を
切断する場合に、塗布剤に接する側の刃物のすくい面が
シート材のパスラインに対し０度〜１０度の角度にさ
れ、固定刃の刃先角度と可動刃の刃先角度の和が１０５
度〜１２５度にされているので、塗布剤の剥離が防止さ
れ切断面のけばだちも切断線近傍の着色も少ない健全な
切断をすることができる。As described above, according to the sheet material cutting apparatus of the present invention for cutting the fixed blade and the movable blade by cross pressure contact, the sheet material coated with the coating material such as photographic paper is cut. In this case, the rake face of the blade in contact with the coating material is formed at an angle of 0 ° to 10 ° with respect to the sheet material pass line, and the sum of the fixed blade edge angle and the movable blade edge angle is 105 °.
Since the degree is set to about 125 degrees, peeling of the coating agent is prevented, and sound cutting can be performed with less fuzz on the cut surface and less coloring near the cutting line.
【図１】本発明実施形態のシート材切断装置の切断刃の
断面構成を示す図である。FIG. 1 is a diagram illustrating a cross-sectional configuration of a cutting blade of a sheet material cutting device according to an embodiment of the present invention.
【図２】シート材切断部に生ずる欠陥を説明する図であ
る。FIG. 2 is a diagram illustrating a defect that occurs in a sheet material cutting portion.
１ 可動刃 ２ 固定刃 Ｓ 印画紙（塗布剤を塗布されたシート材） Ｓ１ 乳剤面（塗布面） Reference Signs List 1 movable blade 2 fixed blade S photographic paper (sheet material coated with coating agent) S1 emulsion surface (coated surface)
Claims (1)
塗布されたシート材を切断するシート材切断装置におい
て、前記塗布剤に接する側の刃物のすくい面が前記シー
ト材のパスラインに対し０度以上、１０度以下の角度を
なし、前記固定刃の刃先角度と可動刃の刃先角度の和が
１０５度以上、１２５度以下であることを特徴とする切
断するシート材切断装置。In a sheet material cutting apparatus for cutting a sheet material coated with an application agent by cross-pressing a fixed blade and a movable blade, a rake face of a blade in contact with the application agent has a rake face of a pass line of the sheet material. An angle of 0 to 10 degrees with respect to the fixed blade, and the sum of the angle of the fixed blade and the angle of the movable blade is 105 to 125 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13917497A JPH10315183A (en) | 1997-05-15 | 1997-05-15 | Sheet material cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13917497A JPH10315183A (en) | 1997-05-15 | 1997-05-15 | Sheet material cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10315183A true JPH10315183A (en) | 1998-12-02 |
Family
ID=15239307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13917497A Pending JPH10315183A (en) | 1997-05-15 | 1997-05-15 | Sheet material cutting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10315183A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006088252A (en) * | 2004-09-22 | 2006-04-06 | Fuji Photo Film Co Ltd | Cutter |
| JP2007237324A (en) * | 2006-03-08 | 2007-09-20 | Fujifilm Corp | Device and method for cutting web |
| WO2010137060A1 (en) * | 2009-05-25 | 2010-12-02 | フォイト パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Unwinder or winder |
-
1997
- 1997-05-15 JP JP13917497A patent/JPH10315183A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006088252A (en) * | 2004-09-22 | 2006-04-06 | Fuji Photo Film Co Ltd | Cutter |
| JP2007237324A (en) * | 2006-03-08 | 2007-09-20 | Fujifilm Corp | Device and method for cutting web |
| WO2010137060A1 (en) * | 2009-05-25 | 2010-12-02 | フォイト パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Unwinder or winder |
| JPWO2010137060A1 (en) * | 2009-05-25 | 2012-11-12 | フォイト パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングＶＯＩＴＨ ＰＡＴＥＮＴ ＧｍｂＨ | Unwinder device or winder device |
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