JPH0498620A - Apparatus for producing magnetic recording medium - Google Patents
Apparatus for producing magnetic recording mediumInfo
- Publication number
- JPH0498620A JPH0498620A JP21545190A JP21545190A JPH0498620A JP H0498620 A JPH0498620 A JP H0498620A JP 21545190 A JP21545190 A JP 21545190A JP 21545190 A JP21545190 A JP 21545190A JP H0498620 A JPH0498620 A JP H0498620A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnets
- recording medium
- pole part
- particles
- 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
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 239000006249 magnetic particle Substances 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000003973 paint Substances 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000003449 preventive effect Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 1
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、磁気ディスク装置に搭載される磁気記録媒体
製造装置に関し、特に磁性塗膜中の磁性粒子の長手方向
を両面同時に円周方向に揃えて所望の電磁変換特性を得
る磁気記録媒体製造装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic recording medium manufacturing apparatus mounted on a magnetic disk device, and in particular, to a magnetic recording medium manufacturing apparatus which is installed in a magnetic disk device, and in particular, to a magnetic recording medium manufacturing apparatus that is capable of simultaneously changing the longitudinal direction of magnetic particles in a magnetic coating film in the circumferential direction on both sides. The present invention relates to a magnetic recording medium manufacturing apparatus that obtains desired electromagnetic conversion characteristics.
［従来の技術］
従来の磁気記録媒体製造装置は、第３図、第４図に示す
ように、磁性塗膜１の両°側に相対して具備された磁石
４ａ、４ｂは、磁石の対ギャップＬ２を有し、ノズル１
０が前記ギャップし２間に侵入し、非磁性基体上に磁性
塗料を吐出し、ノズル１０がギャップし２間より後退し
たのち、磁石４ａ、４ｂの磁極部５と磁極部７と、磁極
部６と磁極部８が同一の極性となるようにコイル９ａ。[Prior Art] As shown in FIGS. 3 and 4, in a conventional magnetic recording medium manufacturing apparatus, magnets 4a and 4b, which are provided facing each other on both sides of a magnetic coating film 1, have a pair of magnets. has a gap L2, and the nozzle 1
0 enters between the gap 2 and discharges the magnetic paint onto the non-magnetic substrate, and after the nozzle 10 retreats from the gap 2, the magnetic pole part 5 and the magnetic pole part 7 of the magnets 4a and 4b and the magnetic pole part 6 and the magnetic pole part 8 have the same polarity.
９ｂに電流を流して、磁性塗膜中の磁性粒子に磁界を印
加し、前記磁性粒子の長手方向を円周方向へ揃えていた
。A current was passed through 9b to apply a magnetic field to the magnetic particles in the magnetic coating film, so that the longitudinal direction of the magnetic particles was aligned in the circumferential direction.
［発明が解決しようとする課題］
上述した従来の磁気記録媒体製造装置は、塗料吐出ノズ
ルが磁石の対ギャップＬ２間に侵入するスペースが保持
されたままであるため、磁性塗膜中の磁性粒子の保持力
および密度が増大し、かつ磁性粒子が微粒子化するにつ
れ、磁性塗膜中の磁性粒子を円周方向に揃える配向特性
がそこなわれるという欠点がある。[Problems to be Solved by the Invention] In the conventional magnetic recording medium manufacturing apparatus described above, the space for the paint discharge nozzle to enter between the gap L2 of the magnet is maintained, so that the magnetic particles in the magnetic coating film are As the coercive force and density increase and the magnetic particles become finer, there is a drawback that the orientation property of aligning the magnetic particles in the magnetic coating film in the circumferential direction is impaired.
［課題を解決するための手段］
本発明の磁気記録媒体製造装置は、非磁性基体をスピン
ドル軸に、中心部を垂直方向にクランプして回転させる
回転手段と、前記スピンドル軸に結合され前記非磁性基
体の表面、裏面にそれぞれ対応して平行に配置される乾
燥防止板と、前記乾燥防止板の内側と前記非磁性基体の
表裏面との間に挿入されて前記非磁性基体に磁性塗料を
前記非磁性基体の表裏面に塗布して磁性塗膜を形成する
ノズルと、前記乾燥防止板の外側に配置され、前記磁性
塗膜中の磁性粒子に磁界を印加して磁性粒子の長手方向
を前記非磁性基体の円周方向に揃える磁性手段とを具備
する磁気記録媒体製造装置において、前記乾燥防止板お
よび磁性手段を前記スピンドル軸に平行な方向に移動さ
せる駆動手段を具備することを特徴とする。[Means for Solving the Problems] The magnetic recording medium manufacturing apparatus of the present invention includes: a rotation means for clamping and rotating a non-magnetic substrate around a spindle shaft in a vertical direction at its center; anti-drying plates arranged in parallel corresponding to the front and back surfaces of the magnetic substrate; and anti-drying plates inserted between the inside of the anti-drying plates and the front and back surfaces of the non-magnetic substrate to coat the non-magnetic substrate with magnetic paint. a nozzle that forms a magnetic coating film by coating on the front and back surfaces of the non-magnetic substrate; A magnetic recording medium manufacturing apparatus comprising: magnetic means aligned in the circumferential direction of the non-magnetic substrate, characterized by comprising a drive means for moving the dry prevention plate and the magnetic means in a direction parallel to the spindle axis. do.
［実施例コ
次に本発明の一実施例について図面を参照して説明する
。[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.
第１図、第２図は本発明の一実施例の構成図である。同
図において、磁性塗膜１は、モータ２のスピンドル１３
に保持された非磁性基体にノズル１０で磁性塗料を塗布
することによって得られる。磁性塗膜１の両側に相対し
て乾燥防止板３ａ、３ｂおよび磁石４ａ、４ｂが具備さ
れている。磁石４ａ、４ｂは、磁極部５，６と、磁極部
７．８を有し、それぞれコイル９ａ、９ｂを備えている
。FIGS. 1 and 2 are configuration diagrams of an embodiment of the present invention. In the figure, the magnetic coating 1 is attached to the spindle 13 of the motor 2.
It is obtained by applying a magnetic paint using a nozzle 10 to a non-magnetic substrate held in the substrate. Anti-drying plates 3a, 3b and magnets 4a, 4b are provided on opposite sides of the magnetic coating 1. The magnets 4a and 4b have magnetic pole parts 5 and 6 and a magnetic pole part 7.8, and are provided with coils 9a and 9b, respectively.
次に、上述した構成からなる磁気記録媒体製造装置の作
用を説明する。Next, the operation of the magnetic recording medium manufacturing apparatus having the above-described configuration will be explained.
まず、スピンドル１３をモータ２により回転しながら、
ノズル１０が非磁性基体上に磁性塗料を吐出し、乾燥防
止板３ａ、３ｂ間から退避後、シリンダｌｌａ、ｌｌｂ
により乾燥防止板３ａ、３ｂを非磁性基体に近づけるよ
うに駆動させた後、磁性塗膜１の両側に相対して具備さ
れた磁石４ａ。First, while rotating the spindle 13 by the motor 2,
After the nozzle 10 discharges the magnetic paint onto the non-magnetic substrate and retreats from between the anti-drying plates 3a and 3b, the cylinders lla and llb
After driving the anti-drying plates 3a and 3b closer to the non-magnetic substrate, the magnets 4a are placed opposite to each other on both sides of the magnetic coating film 1.
４ｂを、シリンダ１’２ａ、１２ｂにより磁石の対ギャ
ップＬ、＝ （０，４〜０．８）Ｌ２まで駆動させる。4b is driven by the cylinders 1'2a and 12b to the magnet pair gap L, = (0,4 to 0.8)L2.
磁石４ａ、４ｂは対ギャップＬ１を保持し、磁極部５と
磁極部７と、磁極部６と磁極部８が同一の極性となるよ
うにコイル９ａ、９ｂに電流を流して、磁性塗膜中の磁
性粒子に磁界を印加し、磁性粒子の長手方向を円周方向
に揃えるものである。The magnets 4a and 4b maintain the paired gap L1, and current is passed through the coils 9a and 9b so that the magnetic pole portion 5 and the magnetic pole portion 7 and the magnetic pole portion 6 and the magnetic pole portion 8 have the same polarity. A magnetic field is applied to the magnetic particles to align the longitudinal direction of the magnetic particles in the circumferential direction.
［発明の効果コ
以上説明したように本発明の磁気記録媒体製造ａｍは、
磁性塗膜中の磁性粒子に印加する磁界を、磁石の対ギャ
ップを縮めることにより増大させ、磁性塗膜中の磁性粒
子を円周方向に揃える配向特性を向上することにより、
磁気記録媒体の電磁変換特性を向上することができる効
果を奏する。[Effects of the Invention] As explained above, the magnetic recording medium manufacturing am of the present invention includes:
By increasing the magnetic field applied to the magnetic particles in the magnetic coating film by narrowing the pair gap between the magnets and improving the alignment property that aligns the magnetic particles in the magnetic coating film in the circumferential direction,
This has the effect of improving the electromagnetic conversion characteristics of the magnetic recording medium.
第１図、第２図は本発明の一実施例の構成図、第３図、
第４図は従来例の構成図である。
１・・・磁性塗膜、２・・・モータ、３ａ、３ｂ・・・
乾燥防止板、４ａ、４ｂ・・・磁石、５〜８・・・磁極
部、９ａ、９ｂ・・・コイル、Ｌｌ ｒ Ｌ２・・・
対キャップ、１０・・・ノズル、ｌｌａ、ｆｌｂ・・・
シリンダ、１２ａ、１２ｂ・・・シリンダ、１３・・・
スピンドル。Figures 1 and 2 are configuration diagrams of an embodiment of the present invention, Figure 3,
FIG. 4 is a configuration diagram of a conventional example. 1... Magnetic coating film, 2... Motor, 3a, 3b...
Anti-drying plate, 4a, 4b...Magnet, 5-8...Magnetic pole part, 9a, 9b...Coil, Ll r L2...
Pair cap, 10... Nozzle, lla, flb...
Cylinder, 12a, 12b...Cylinder, 13...
spindle.
Claims (1)
ンプして回転させる回転手段と、前記スピンドル軸に結
合され前記非磁性基体の表面、裏面にそれぞれ対応して
平行に配置される乾燥防止板と、前記乾燥防止板の内側
と前記非磁性基体の表裏面との間に挿入されて前記非磁
性基体に磁性塗料を前記非磁性基体の表裏面に塗布して
磁性塗膜を形成するノズルと、前記乾燥防止板の外側に
配置され、前記磁性塗膜中の磁性粒子に磁界を印加して
磁性粒子の長手方向を前記非磁性基体の円周方向に揃え
る磁性手段とを具備する磁気記録媒体製造装置において
、前記乾燥防止板および磁性手段を前記スピンドル軸に
平行な方向に移動させる駆動手段を具備することを特徴
とする磁気記録媒体製造装置。a rotation means for clamping and rotating the non-magnetic substrate in a vertical direction around the spindle shaft; and a drying prevention plate connected to the spindle shaft and arranged in parallel to correspond to the front and back surfaces of the non-magnetic substrate, respectively. and a nozzle inserted between the inside of the drying prevention plate and the front and back surfaces of the non-magnetic substrate to apply magnetic paint to the front and back surfaces of the non-magnetic substrate to form a magnetic coating film. and a magnetic means disposed outside the drying prevention plate to apply a magnetic field to the magnetic particles in the magnetic coating film to align the longitudinal direction of the magnetic particles with the circumferential direction of the non-magnetic substrate. A magnetic recording medium manufacturing apparatus characterized in that the manufacturing apparatus includes a driving means for moving the drying prevention plate and the magnetic means in a direction parallel to the spindle axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21545190A JPH0498620A (en) | 1990-08-15 | 1990-08-15 | Apparatus for producing magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21545190A JPH0498620A (en) | 1990-08-15 | 1990-08-15 | Apparatus for producing magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0498620A true JPH0498620A (en) | 1992-03-31 |
Family
ID=16672586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21545190A Pending JPH0498620A (en) | 1990-08-15 | 1990-08-15 | Apparatus for producing magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0498620A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008056696A (en) * | 2000-08-09 | 2008-03-13 | Panacea Biotec Ltd | Antituberculous composition and method for preparing the same |
-
1990
- 1990-08-15 JP JP21545190A patent/JPH0498620A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008056696A (en) * | 2000-08-09 | 2008-03-13 | Panacea Biotec Ltd | Antituberculous composition and method for preparing the same |
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