JPH0560169B2 - - Google Patents
Info
- Publication number
- JPH0560169B2 JPH0560169B2 JP3269181A JP3269181A JPH0560169B2 JP H0560169 B2 JPH0560169 B2 JP H0560169B2 JP 3269181 A JP3269181 A JP 3269181A JP 3269181 A JP3269181 A JP 3269181A JP H0560169 B2 JPH0560169 B2 JP H0560169B2
- Authority
- JP
- Japan
- Prior art keywords
- vapor
- magnetic tape
- deposited magnetic
- rotary blade
- tape
- 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
Links
- 238000005520 cutting process Methods 0.000 claims description 25
- 238000010008 shearing Methods 0.000 claims description 25
- 238000004804 winding Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 230000032258 transport Effects 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000010408 film Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
- Nonmetal Cutting Devices (AREA)
Description
この発明は蒸着磁気テープ裁断加工装置に関す
るものである。
2μm〜20μmの厚さを有するポリエチレンテレ
フタレート、ポリプロピレン、ポリイミド、ポリ
アミドなどのフイルム基材の表面に真空蒸着処理
によつて磁性金属薄膜を形成した蒸着磁気テープ
を裁断加工する場合、従来の蒸着磁気テープ裁断
加工装置では蒸着磁気テープを裁断する剪断式回
転刃の並設ピツチを、得ようとする蒸着磁気テー
プの幅寸法そのままに設定していたため、裁断加
工のさいに蒸着磁気テープの長手方向に加わる張
力によりポアツソン比分だけ狭幅状態で裁断さ
れ、前記張力が解放された裁断後には得られた蒸
着磁気テープの幅寸法は所望の幅寸法より広くな
つてしまい、使用のさいの蒸着磁気テープの走行
性が不安定となり電磁変換特性が低下するという
欠点を有していた。すなわち、蒸着磁気テープは
その幅寸法を最小許容値に合わせて加工した場合
が最も走行時の安定性がよく、走行時の安定性は
そのまま電磁変換特性の出力レベル変動の改善に
つながるが、前記従来例ではその幅寸法が広くな
つて、走行性ひいては電磁変換特性を劣化させる
ことになる。
したがつて、この発明の目的は、走行性のよい
蒸着磁気テープを加工することのできる蒸着磁気
テープ裁断加工装置を提供することである。
この発明の一実施例を第１図ないし第８図に示
す。すなわち、この蒸着磁気テープ裁断加工装置
は、上刃１ａ、下刃１ｂの一対からなり周設され
る刃物の配列ピツチWpを裁断幅の最大許容寸法
よりその寸法公差の約3/4だけ小さい値とした超
硬合金製の蒸着磁気テープ裁断用剪断式回転刃１
と、この剪断式回転刃１の前段に配設され未加工
の蒸着磁気テープ原反Ａを巻回して前記剪断式回
転刃１に順次繰り出す原反送出軸２と、前記剪断
式回転刃１と原反送出軸２との間に配設され繰り
出された蒸着磁気テープ原反Ａを前記剪断式回転
刃１まで案内する原反案内ローラ３，３と、前記
剪断式回転刃１の直前に配設され蒸着磁気テープ
原反Ａのフイルム基材面側に接面して蒸着磁気テ
ープ原反Ａに対し幅方向の張力を与えるエキスパ
ンダローラ４と、前記剪断式回転刃１を挾む前記
原反送出軸２の反対側に配設され前記剪断式回転
刃１で複数本に裁断加工された蒸着磁気テープＢ
…を分離して巻き取るテープ巻取軸５，５と、前
記剪断式回転刃１と前記テープ巻取軸５，５との
間に配設され蒸着磁気テープＢを各テープ巻取軸
５，５に案内する複数のテープ案内ローラ６…，
６′…とを備えたものである。
前記剪断式回転刃１の各刃物の配列ピツチWp
は、蒸着磁気テープＢの最大許容幅寸法をWa、
最小許容幅寸法をWbとするとその寸法公差が
（Wa−Wb）となるので、
Wp＝Wa−３／４（Wa−Wb）
＝１／４（Wa＋3Wb） …(1)
となる。
具体的に示すと、Wa＝3.81mm、Wb＝3.76mmと
定められる蒸着磁気テープの場合は、前記の(1)式
から刃物の配列ピツチWpは１／４（3.81＋３×3.76）
≒3.773（mm）とすればよいことになる。
さらに、前記剪断式回転刃１の上刃１ａについ
ては、その下刃１ｂに対しその周速を10％以下の
所定速度だけ速くして、従来の蒸着磁気テープ裁
断加工装置による裁断加工において裁断端部にみ
られた第９図、第１０図に示すような磁性金属薄
膜８でのひび割れ８ａ、剥離８ｂあるいは第１１
図に示すようなフイルム基材９の変形９ａなどの
不良の発生（第１２図Ａ，Ｂに従来例の場合のひ
び割れ、変形の発生率を示す）を低減化するよう
にしている。
前記案内ローラ３，６，６′としては、第７図
に側面図で示すように母材１０の表層に硬質クロ
ムメツキ層１１を形成し、その表面の仕上面粗さ
を1S以下としたものを用い、その表面粗さによ
る蒸着磁気テープ原反Ａないし蒸着磁気テープＢ
への密着性の向上をはかり、蒸着磁気テープ原反
Ａの剪断式回転刃１への走行性ないし蒸着磁気テ
ープＢのテープ巻取軸５へ向けての走行性が安定
するように工夫している。
また、原反送出軸２から剪断式回転刃１までの
間には、蒸着磁気テープ原反Ａの非蒸着面側に向
けて放電電極７を配置し、この放電電極７に対し
てAC10〜1000Vの対地電圧を印加して放電雰囲
気をつくり出し、それによつて蒸着磁気テープ原
反Ａ表面に付着したごみなどを除去し、蒸着磁気
テープ原反Ａのローラ３，４、剪断式回転刃１へ
の密着性を促進し、走行の安定性ないし裁断の精
度向上をはかるようにしている。
なお、テープ巻取軸５の直前の案内ローラ６′
については、第８図に示すような鍔６′ａ付きの
ものを採用して、蒸着磁気テープＢの幅方向のぶ
れを規制しテープ巻取軸５の正確な位置に各蒸着
磁気テープＢ…が巻回されるようにしている。
裁断加工された蒸着磁気テープＢ…を最後に巻
き取る各テープ巻取軸５は、それぞれが互いに独
立した張力制御機能を持つ軸で構成し、巻取径に
関係なく張力を一定張力、または巻取径の増大に
応じて張力を減少する漸減張力のもとに巻き取る
ことができるようにしている。第１３図はその巻
取径と張力との関係の一例を示している。
このように構成したため、この蒸着磁気テープ
裁断加工装置は次のような効果を有する。
(1) 剪断式回転刃１の刃物配列ピツチWpを裁断
幅の最大許容寸法よりもその寸法公差の3/4程
度小さく設定したため、得られる蒸着磁気テー
プＢの幅寸法を使用のさいの走行安定性に優れ
た最小許容幅寸法に近い値にすることができ、
走向性の向上により電磁変換特性のうちの出力
レベル変動を大幅に改善することができる。そ
の改善の程度を、第１４図Ａに示す従来例の場
合と比較して同図Ｂに示している。
(2) 剪断式回転刃１の直前にエキスパンダローラ
４を配設して、蒸着磁気テープ原反Ａに幅方向
の張力を付与するようにしたため、剪断式回転
刃１に送られる蒸着磁気テープ原反Ａが剪断式
回転刃１の下刃１ｂによく密着し、裁断加工時
の蒸着磁気テープ原反Ａの走行性が向上して裁
断精度を大幅に向上させることができる。その
裁断幅精度の向上の度合を、第１５図Ａに示す
従来例の場合と比較して同図Ｂに示している。
(3) 案内ローラ３，６，６′の母材１０の表層に
硬質クロムメツキ層１１を形成してその表面を
粗面化（1S以下）したため、案内ローラ３，
６，６′への蒸着磁気テープ原反Ａないし蒸着
磁気テープＢの密着性が向上し、走行時の蛇行
現象が防止されその走行性を一層向上させるこ
とができる。前記案内ローラ３，６，６′の表
面の粗面化程度と密着性の良否の関係を表１に
示す。同表中、〇は密着性良、△は密着性普
通、×は密着性不良を表わす。
This invention relates to a vapor deposited magnetic tape cutting apparatus. When cutting vapor-deposited magnetic tape in which a thin magnetic metal film is formed by vacuum deposition on the surface of a film base material such as polyethylene terephthalate, polypropylene, polyimide, or polyamide with a thickness of 2 μm to 20 μm, conventional vapor-deposited magnetic tape is used. In the cutting equipment, the spacing of the shearing type rotary blades that cut the vapor-deposited magnetic tape was set to the same width as the desired vapor-deposited magnetic tape, so that the cutting process was performed without applying force in the longitudinal direction of the vapor-deposited magnetic tape. Due to the tension, the tape is cut into a narrow width corresponding to the Poisson's ratio, and after the tension is released, the width of the vapor-deposited magnetic tape obtained is wider than the desired width, and the running of the vapor-deposited magnetic tape during use is reduced. This had the disadvantage that the properties were unstable and the electromagnetic conversion characteristics deteriorated. In other words, the vapor-deposited magnetic tape has the best running stability when its width is processed to match the minimum allowable value, and the running stability directly leads to an improvement in the output level fluctuation of the electromagnetic conversion characteristics. In the conventional example, the width dimension becomes wide, which deteriorates the running performance and eventually the electromagnetic conversion characteristics. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vapor-deposited magnetic tape cutting apparatus that can process a vapor-deposited magnetic tape with good running properties. An embodiment of the invention is shown in FIGS. 1 to 8. In other words, this vapor-deposited magnetic tape cutting device has an arrangement pitch W p of the circumferential cutters consisting of a pair of upper blade 1a and lower blade 1b that is smaller than the maximum allowable cutting width by about 3/4 of the dimensional tolerance. Shear type rotary blade for cutting vapor-deposited magnetic tape made of cemented carbide 1
and a raw material delivery shaft 2 which is disposed upstream of the shearing type rotary blade 1 and winds the unprocessed evaporated magnetic tape raw material A and sequentially delivers it to the shearing type rotary blade 1; Fabric guide rollers 3, 3 are disposed between the fabric feed shaft 2 and guide the fed-out evaporated magnetic tape fabric A to the shearing type rotary blade 1, and fabric guide rollers 3, 3 are disposed immediately before the shearing type rotary blade 1. an expander roller 4 which is provided in contact with the film base material side of the vapor-deposited magnetic tape raw fabric A and applies tension in the width direction to the vapor-deposited magnetic tape raw fabric A; Vapor-deposited magnetic tape B disposed on the opposite side of the anti-sending shaft 2 and cut into a plurality of pieces by the shearing rotary blade 1
. . . tape winding shafts 5, 5 for separating and winding the vapor-deposited magnetic tape B disposed between the shear type rotary blade 1 and the tape winding shafts 5, 5; 5, a plurality of tape guide rollers 6...,
6'... Arrangement pitch of each cutter of the shear type rotary blade 1 W p
is the maximum allowable width dimension of vapor-deposited magnetic tape B, W a ,
If the minimum allowable width dimension is W b , its dimensional tolerance is (W a - W b ), so W p = W a - 3/4 (W a - W b ) = 1/4 (W a + 3 W b ) …(1) becomes. Specifically, in the case of vapor-deposited magnetic tape where W a = 3.81 mm and W b = 3.76 mm, the arrangement pitch W p of the cutters is 1/4 (3.81 + 3 x 3.76) from the above equation (1). It is sufficient to set it to ≒3.773 (mm). Furthermore, the circumferential speed of the upper blade 1a of the shearing type rotary blade 1 is increased by a predetermined speed of 10% or less with respect to the lower blade 1b, so that the cutting edge is Cracks 8a, peeling 8b, or peeling 8b in the magnetic metal thin film 8 as shown in FIGS. 9 and 10.
This is intended to reduce the occurrence of defects such as deformation 9a of the film base material 9 as shown in the figure (Figs. 12A and 12B show the incidence of cracking and deformation in the conventional example). The guide rollers 3, 6, 6' are those in which a hard chrome plating layer 11 is formed on the surface layer of the base material 10, and the finished surface roughness of the surface is 1S or less, as shown in the side view in FIG. Vapor-deposited magnetic tape original A or vapor-deposited magnetic tape B depending on its surface roughness.
In order to improve the adhesion to the magnetic tape, the running properties of the vapor-deposited magnetic tape material A toward the shear type rotary blade 1 and the running properties of the vapor-deposited magnetic tape B toward the tape winding shaft 5 are stabilized. There is. Further, a discharge electrode 7 is arranged between the raw fabric delivery shaft 2 and the shear type rotary blade 1, facing the non-vaporized surface side of the vapor-deposited magnetic tape raw fabric A. A voltage to the ground of The aim is to promote adhesion and improve running stability and cutting accuracy. Note that the guide roller 6' immediately before the tape winding shaft 5
For this purpose, a type with a flange 6'a as shown in FIG. 8 is used to control the wobbling of the vapor-deposited magnetic tape B in the width direction and to position each vapor-deposited magnetic tape B at an accurate position on the tape winding shaft 5. is wound. Each tape winding shaft 5 that finally winds the cut vapor-deposited magnetic tape B... is composed of shafts each having an independent tension control function, and the tension is set at a constant tension or at a constant tension regardless of the winding diameter. The winding can be performed under a gradually decreasing tension that decreases as the diameter of the winding increases. FIG. 13 shows an example of the relationship between the winding diameter and tension. Because of this configuration, this vapor-deposited magnetic tape cutting apparatus has the following effects. (1) Since the blade arrangement pitch W p of the shear type rotary blade 1 is set to be about 3/4 smaller than the maximum allowable cutting width, the width of the resulting vapor-deposited magnetic tape B can be adjusted to It can be made to a value close to the minimum allowable width dimension with excellent stability,
By improving the directionality, it is possible to significantly improve output level fluctuations among electromagnetic conversion characteristics. The degree of improvement is shown in FIG. 14B in comparison with the conventional example shown in FIG. 14A. (2) An expander roller 4 is disposed just before the shearing type rotary blade 1 to apply tension in the width direction to the vapor-deposited magnetic tape raw material A, so that the vapor-deposited magnetic tape sent to the shearing type rotary blade 1 is The original fabric A is closely attached to the lower blade 1b of the shear type rotary blade 1, and the runnability of the vapor-deposited magnetic tape original fabric A during cutting processing is improved, and cutting accuracy can be greatly improved. The degree of improvement in cutting width accuracy is shown in FIG. 15B in comparison with the conventional example shown in FIG. 15A. (3) A hard chrome plating layer 11 is formed on the surface layer of the base material 10 of the guide rollers 3, 6, 6' to roughen the surface (1S or less).
The adhesion of the vapor-deposited magnetic tape original fabric A to the vapor-deposited magnetic tape B to the tapes 6 and 6' is improved, the meandering phenomenon during running is prevented, and the running properties can be further improved. Table 1 shows the relationship between the degree of surface roughening of the guide rollers 3, 6, and 6' and the adhesion quality. In the same table, ◯ indicates good adhesion, △ indicates fair adhesion, and × indicates poor adhesion.
【表】
(4) 剪断式回転刃１へ送り込まれる前の段階にお
いて、蒸着磁気テープ原反Ａの非蒸着面側に向
けて放電電極７を配置し放電雰囲気をつくるよ
うにしたため、蒸着磁気テープ原反Ａの表裏面
のごみなどの付着物を効果的に除去し、走行時
のしわなどの発生を回避してローラ３，４、剪
断式回転刃１との密着性をさらに向上させるこ
とができる。このような蒸着磁気テープ原反Ａ
の表裏面の付着物の除去処理により、得られる
蒸着磁気テープＢの電磁変換特性についての不
良率を大幅に低減化できる。その改善の程度
を、従来例の場合について示す第１６図Ａと比
較して同図Ｂに示している。
(5) 剪断式回転刃１の上刃１ａの周速を下刃１ｂ
の周速よりも10％以下の範囲で速く設定したた
め、蒸着磁気テープＢの裁断端部において従来
例の場合に多く発生していた第９図のような磁
性金属薄膜８のひぼ割れ８ａ、第１０図に示す
ような磁性金属薄膜８の剥離８ｂ、第１１図に
示すようなフイルム基材９の変形９ａなどを低
減することができる。その改善の程度を表２に
示す。なお、同表において、％は剪断式回転刃
１の下刃１ｂに対する上刃１ａの周速の増加比
率であり、△はやや改善されたもの、〇はよく
改善されたもの、◎は改善程度が顕著なものを
示している。[Table] (4) Before being sent to the shearing type rotary blade 1, the discharge electrode 7 is placed toward the non-evaporated side of the vapor-deposited magnetic tape material A to create a discharge atmosphere, so that the vapor-deposited magnetic tape It is possible to effectively remove dirt and other deposits from the front and back surfaces of the web A, avoid wrinkles during running, and further improve the adhesion between the rollers 3 and 4 and the shearing rotary blade 1. can. Such vapor-deposited magnetic tape raw material A
By removing deposits from the front and back surfaces of the magnetic tape B, the defective rate of the electromagnetic conversion characteristics of the vapor-deposited magnetic tape B can be significantly reduced. The degree of improvement is shown in FIG. 16B in comparison with FIG. 16A, which shows the conventional example. (5) The peripheral speed of the upper blade 1a of the shear type rotary blade 1 is the lower blade 1b.
Since the circumferential speed was set to be 10% or less faster than the circumferential speed of the evaporated magnetic tape B, cracks 8a in the magnetic metal thin film 8 as shown in FIG. Peeling 8b of the magnetic metal thin film 8 as shown in FIG. 10, deformation 9a of the film base material 9 as shown in FIG. 11, etc. can be reduced. Table 2 shows the degree of improvement. In addition, in the same table, % is the increase ratio of the circumferential speed of the upper blade 1a to the lower blade 1b of the shear type rotary blade 1, △ means slightly improved, 〇 means well improved, ◎ means improved degree shows something remarkable.
【表】
(6) 裁断加工されて得られた蒸着磁気テープＢは
途中鍔６′ａ付きの案内ローラ６′を経てテープ
巻取軸５，５に巻回するようにしているため、
幅方向へのぶれを規制して、テープ巻取軸５，
５への巻回姿勢を向上させることができる。
以上のように、この発明の蒸着磁気テープ裁断
加工装置は、各刃物の配列ピツチを蒸着磁気テー
プ裁断予定幅の最大許容寸法よりその寸法公差の
３／４程度小さく設定した上刃、下刃の一対からな
る剪断式回転刃と、巻回した蒸着磁気テープ原反
を前記剪断式回転刃に送り出す原反送出軸と、前
記原反送出軸と剪断式回転刃との間に配設され蒸
着磁気テープ原反を前記剪断式回転刃に案内する
原反案内ローラと、前記剪断式回転刃で裁断加工
された蒸着磁気テープを巻き取るテープ巻取軸
と、前記剪断式回転刃とテープ巻取軸との間に配
設され蒸着磁気テープを前記テープ巻取軸に案内
するテープ案内ローラとを備えたものであるた
め、走行性に優れた蒸着磁気テープを裁断加工す
ることができ、得られる蒸着磁気テープの電磁変
換特性を大幅に向上させることができるという効
果を有する。[Table] (6) The vapor-deposited magnetic tape B obtained by cutting is wound around the tape winding shafts 5, 5 through a guide roller 6' with a collar 6'a on the way.
The tape winding shaft 5,
5 can be improved. As described above, the vapor-deposited magnetic tape cutting apparatus of the present invention has upper and lower blades whose arrangement pitch of each blade is set to be approximately 3/4 of the dimensional tolerance smaller than the maximum allowable dimension of the planned cutting width of the vapor-deposited magnetic tape. A shearing type rotary blade consisting of a pair, a raw material delivery shaft that sends out the rolled vapor-deposited magnetic tape material to the shearing type rotary blade, and a vapor deposition magnetic tape disposed between the material material delivery shaft and the shearing type rotary blade. an original tape guide roller that guides the original tape to the shearing rotary blade; a tape winding shaft that winds the vapor-deposited magnetic tape cut by the shearing rotary blade; and the shearing rotary blade and the tape winding shaft. Since the tape guide roller is disposed between the tape guide roller and the tape guide roller that guides the vapor-deposited magnetic tape to the tape winding shaft, the vapor-deposited magnetic tape with excellent running properties can be cut and the resulting vapor-deposited magnetic tape can be cut. This has the effect of significantly improving the electromagnetic conversion characteristics of the magnetic tape.
第１図はこの発明の一実施例を示す概略側面
図、第２図はその要部正面図、第３図および第４
図はそれぞれその部分斜視図、第５図はその一部
概略側面図、第６図はその正面図、第７図はその
ローラの側面図、第８図はその一部の案内ローラ
を示す斜視図、第９図ないし第１１図はそれぞれ
従来例による不良例を示す蒸着磁気テープの斜視
図、第１２図Ａ，Ｂはそれぞれ従来例によるひび
割れおよび変形の発生率を示す図、第１３図はテ
ープ巻取軸の巻取径と張力との関係を示す図、第
１４図Ａ，Ｂはこの実施例より得られた蒸着磁気
テープと従来例によるものとの出力レベル特性を
比較して示す説明図、第１５図Ａ，Ｂは従来例と
の裁断幅精度の差を比較して示す説明図、第１６
図Ａ，Ｂは従来例との電磁変換特性不良発生数の
差を比較して示す説明図である。
１…剪断式回転刃、１ａ…上刃、１ｂ…下刃、
２…原反送出軸、３…原反案内ローラ、４…エキ
スパンダローラ、５…テープ巻取軸、６，６′…
テープ案内ローラ、６′ａ…鍔、７…放電電極。
FIG. 1 is a schematic side view showing one embodiment of the present invention, FIG. 2 is a front view of the main parts, and FIGS. 3 and 4.
The figures are a partial perspective view, FIG. 5 is a partial schematic side view, FIG. 6 is a front view, FIG. 7 is a side view of the roller, and FIG. 8 is a perspective view showing a part of the guide roller. 9 to 11 are perspective views of a vapor-deposited magnetic tape showing defective examples according to the conventional example, FIGS. 12A and 12B are views showing the incidence of cracks and deformation, respectively, according to the conventional example, and FIG. A diagram showing the relationship between the winding diameter of the tape winding shaft and the tension, and FIGS. 14A and 14B are explanations showing a comparison of the output level characteristics of the vapor-deposited magnetic tape obtained from this example and the conventional example. Figures 15A and 15B are explanatory diagrams comparing and showing the difference in cutting width accuracy with the conventional example;
Figures A and B are explanatory diagrams that compare and show the difference in the number of occurrences of electromagnetic conversion characteristic defects with the conventional example. 1... Shear type rotary blade, 1a... Upper blade, 1b... Lower blade,
2... Original fabric delivery shaft, 3... Original fabric guide roller, 4... Expander roller, 5... Tape winding shaft, 6, 6'...
Tape guide roller, 6'a... collar, 7... discharge electrode.
Claims (1)
定幅の最大許容寸法よりその寸法公差の3/1程度
小さく設定した上刃、下刃の一対からなる剪断式
回転刃と、巻回した蒸着磁気テープ原反を前記剪
断式回転刃に送り出す原反送出軸と、前記原反送
出軸と剪断式回転刃との間に配設され蒸着磁気テ
ープ原反を前記剪断式回転刃に案内する原反案内
ローラと、前記剪断式回転刃で裁断加工された蒸
着磁気テープを巻き取るテープ巻取軸と、前記剪
断式回転刃とテープ巻取軸との間に配設され蒸着
磁気テープを前記テープ巻取軸に案内するテープ
案内ローラとを備えた蒸着磁気テープ裁断加工装
置。 ２ 前記剪断式回転刃の直前に、蒸着磁気テープ
原反のフイルム基材面に接面しその幅方向に張力
を与えるエキスパンダローラを配設した特許請求
の範囲第１項記載の蒸着磁気テープ裁断加工装
置。 ３ 前記剪断式回転刃は、その下刃に対し上刃の
周速を10％以下速く設定したものである特許請求
の範囲第１項記載の蒸着磁気テープ裁断加工装
置。 ４ 前記原反案内ローラは、その表層に硬質クロ
ムメツキ層を形成し表面の仕上面粗さを1S以下
としたものである特許請求の範囲第１項記載の蒸
着磁気テープ裁断加工装置。 ５ 前記原反送出軸と剪断式回転刃との間には、
蒸着磁気テープ原反の非蒸着面側に放電電極を配
設したものである特許請求の範囲第１項記載の蒸
着磁気テープ裁断加工装置。[Scope of Claims] 1. A shearing rotary blade consisting of a pair of upper and lower blades, each of which has an arrangement pitch of each blade set to be approximately 3/1 smaller than the maximum permissible dimension of the intended cutting width of the vapor-deposited magnetic tape; A raw material delivery shaft that sends out the wound vapor-deposited magnetic tape material to the shearing type rotary blade; and a material delivery shaft disposed between the material delivery shaft and the shearing type rotary blade, which transports the vapor deposited magnetic tape material to the shearing type rotary blade. a tape winding shaft that winds up the vapor-deposited magnetic tape cut by the shearing type rotary blade, and a vapor-deposited magnetic tape disposed between the shearing type rotary blade and the tape winding shaft. A vapor-deposited magnetic tape cutting device comprising a tape guide roller that guides the tape to the tape winding shaft. 2. The vapor-deposited magnetic tape according to claim 1, wherein an expander roller is disposed immediately before the shearing rotary blade in contact with the film base material surface of the vapor-deposited magnetic tape raw material and applies tension in the width direction thereof. Cutting processing equipment. 3. The vapor-deposited magnetic tape cutting apparatus according to claim 1, wherein the shear type rotary blade has an upper blade whose circumferential speed is set to be 10% or less faster than the lower blade. 4. The vapor-deposited magnetic tape cutting apparatus according to claim 1, wherein the raw material guide roller has a hard chrome plating layer formed on its surface and has a surface roughness of 1S or less. 5 Between the raw material delivery shaft and the shearing rotary blade,
2. The vapor-deposited magnetic tape cutting apparatus according to claim 1, wherein a discharge electrode is provided on the non-vapor-deposited side of the vapor-deposited magnetic tape original.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3269181A JPS57147136A (en) | 1981-03-06 | 1981-03-06 | Slittering process device for vapor-deposited magnetic tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3269181A JPS57147136A (en) | 1981-03-06 | 1981-03-06 | Slittering process device for vapor-deposited magnetic tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57147136A JPS57147136A (en) | 1982-09-10 |
| JPH0560169B2 true JPH0560169B2 (en) | 1993-09-01 |
Family
ID=12365878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3269181A Granted JPS57147136A (en) | 1981-03-06 | 1981-03-06 | Slittering process device for vapor-deposited magnetic tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57147136A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0224631Y2 (en) * | 1987-04-07 | 1990-07-05 | ||
| JP2548507Y2 (en) * | 1991-04-19 | 1997-09-24 | 株式会社吉野工業所 | Liquid dispense cap |
| CN104118758B (en) * | 2014-06-16 | 2016-05-04 | 张会领 | A kind of filament cutter |
-
1981
- 1981-03-06 JP JP3269181A patent/JPS57147136A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57147136A (en) | 1982-09-10 |
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