JPH02173911A - Production of magnetic head - Google Patents
Production of magnetic headInfo
- Publication number
- JPH02173911A JPH02173911A JP33063188A JP33063188A JPH02173911A JP H02173911 A JPH02173911 A JP H02173911A JP 33063188 A JP33063188 A JP 33063188A JP 33063188 A JP33063188 A JP 33063188A JP H02173911 A JPH02173911 A JP H02173911A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- tape
- polishing
- rotating drum
- magnetic
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000005498 polishing Methods 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 7
- 238000007517 polishing process Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
この発明はＤＡ’ｒ（デジタルオーディオテープレコー
ダー）やコンピュータ等の磁気記録再生装置に搭載され
る磁気ヘッドの製造方法に関し、より詳しくは磁気ヘッ
ドのテープ摺動面の研磨方法に関４゛る。Detailed Description of the Invention (a) Field of Industrial Application This invention relates to a method of manufacturing a magnetic head installed in a magnetic recording/reproducing device such as a DA'r (digital audio tape recorder) or a computer, and more specifically relates to This article relates to a method of polishing the tape sliding surface of a head.
（ロ）従来の技術
磁気テープに対ｊ７て情報の記録再生を行なう磁気ヘッ
ドは、磁気ヘッドと（２て所望の電気的特性を得るため
に、製造工程において、テープ摺動面を所定の面Ｉ１１
度に仕１．げろことか行われている。。(b) Conventional technology A magnetic head for recording and reproducing information on a magnetic tape (2) In order to obtain the desired electrical characteristics, the tape sliding surface is adjusted to a predetermined surface during the manufacturing process. I11
1. There is something going on. .
磁気ヘッドに対するテープ摺動面の研磨は、ｉｆｆ二来
１第３図に示すように、回転可能に保持された回転ドラ
ムａの外周面に研磨４−へきＩＳｊ、、数個の磁気ヘッ
ドｂを固着し、回転ドラム（によって回転される磁気ヘ
ッドｂの先端部にテープガイドｄ、ｄによって押、」で
される研磨テープＣを走行させることにより行なわれて
いた。この場合、研磨テープＣは磁気ヘッドｌ）の先端
部に摺動する前後の少なくともいずれか一方で、回転ド
ラムａの表面とも抑圧されていた。The tape sliding surface for the magnetic head is polished by polishing several magnetic heads b on the outer peripheral surface of a rotating drum a that is rotatably held, as shown in FIG. The abrasive tape C is attached to a magnetic head b rotated by a rotating drum, and the abrasive tape C is pushed by tape guides d and d. The surface of the rotating drum a was also suppressed at least either before or after sliding on the tip of the head l).
（ハ）発明が解決しようとする課題
（７か１２ながら、従来の技術で述べたような磁気ヘッ
ドの製造方法では、磁気ヘッド１〕が回転ドラム上によ
って第４図のＡの位置からＢ、Ｃ，ｌ）を経てＥの位置
まで回転されると、各位置における磁気ヘッドｂと研磨
テープＣの４７５動状態は、次のようになる。(c) Problems to be Solved by the Invention (7 or 12) In the method of manufacturing a magnetic head as described in the prior art, the magnetic head 1 is moved from position A to position B in FIG. 4 on a rotating drum. When the magnetic head b and polishing tape C are rotated through positions C and l) to position E, the 475 motion states of the magnetic head b and polishing tape C at each position are as follows.
即し、磁気ヘッドｂが研磨テープＣと接触を始めるＡの
位置では、磁気ヘッドｂの回転方向側だけの面が研磨テ
ープＣによって研磨され、研磨テープＣは磁気ヘッドｂ
の回転方向側だけで回転ドラムａに接触している。そし
て、磁気ヘッドｂがＡの位置からＢの位置へ回転してい
くにつれて、磁気ヘッドｂと研磨テープＣの摺動面は、
遂次回転方向の反対側へ移動すると同時に磁気ヘッドｂ
への巻き付は量を増加していく。That is, at position A where the magnetic head b starts contacting the polishing tape C, only the surface on the rotational direction side of the magnetic head b is polished by the polishing tape C, and the polishing tape C is in contact with the magnetic head b.
is in contact with the rotating drum a only on the rotation direction side. As the magnetic head b rotates from position A to position B, the sliding surfaces of the magnetic head b and polishing tape C become
While successively moving to the opposite side of the rotation direction, the magnetic head b
The amount of wrapping increases.
磁気ヘッドｂｈ（Ｂの位置にきたとき、研磨テープＣは
磁気ヘッドｂの両側で回転ドラムａに押圧し、磁気ヘッ
ドｂとの摺動面は、磁気ヘッドｂの先端部の両側でほぼ
対象に形成される。この状態は、磁気ヘッドｂ ｈ＜
Ｂの位置から、Ｃを経てＤの位置に至るまで保持される
。When the magnetic head bh (B) is reached, the polishing tape C is pressed against the rotating drum a on both sides of the magnetic head b, and the sliding surface with the magnetic head b is almost symmetrical on both sides of the tip of the magnetic head b. This state is formed when the magnetic head b h<
It is held from position B through C to position D.
さらに、磁気ヘッドｂがＤの位置からＥの位置へ回転し
ていくにつれて、研磨テープＣとの摺動面は回転方向と
反対側へ遂次移動しつつその巻き付は爪を減少していく
。そして、Ｅの位置を通過すると同時に、磁気ヘッドｂ
は研磨テープＣとの接触を失なう。Furthermore, as the magnetic head b rotates from the position D to the position E, the sliding surface with the polishing tape C gradually moves in the opposite direction to the rotation direction, and its wrapping becomes less claw-like. . Then, at the same time as it passes the position E, the magnetic head b
loses contact with polishing tape C.
しかし、このような研磨状態では、研磨プロセスの主体
となるのは、磁気ヘッドｂｈ＜Ｂの位置からＤの位置に
回転する間であり、この間での磁気ヘッドｂと研磨テー
プＣとの摺動状態は、第５図に示すように、はぼ一定の
幅りを持っである種の定常状態にあると考えられる。摺
動面の幅りが非常に小さい場合には、研磨テープＣの曲
げ剛性の影響で、磁気ヘッドｂの先端部分が最も良く研
磨されることになる。これに対し、摺動面の幅しかある
程度以上に大きい場合には、同じく研磨テープＣの曲げ
剛性の影響から磁気ヘプトｂの摺動面の周辺部分が最も
良く研磨されることになる。However, in such a polishing state, the main part of the polishing process is the period during which the magnetic head rotates from the position bh<B to the position D, and the sliding movement between the magnetic head b and the polishing tape C during this period. The state is considered to be in a kind of steady state with an approximately constant width, as shown in FIG. If the width of the sliding surface is very small, the tip of the magnetic head b will be polished best due to the bending rigidity of the polishing tape C. On the other hand, if the width of the sliding surface is larger than a certain level, the peripheral portion of the sliding surface of the magnetic hept b will be polished best due to the influence of the bending rigidity of the polishing tape C.
この結果、いずれの場合においても、磁気ヘッドｂの摺
動面は、その周辺部分に比べて先端部分の曲率半径の方
が大きくなるような偏研磨を引き起こし、磁気テープＣ
と磁気ヘッドｂとの良好な摺動性を維持できなくなると
いう問題点を有していた。As a result, in either case, the sliding surface of the magnetic head b is unevenly polished in such a way that the radius of curvature of the tip is larger than that of the surrounding area, and the sliding surface of the magnetic head b is unevenly polished.
There was a problem in that good slidability between the magnetic head and the magnetic head b could not be maintained.
この発明は上尺の事情を鑑みてなされたものであり、そ
の目的とするところは、磁気ヘッドｂのテープ研磨にお
ける個研磨の発生を防止することができる磁気ヘッドの
製造方法を堤供しようとするらのである。This invention was made in view of the above-mentioned circumstances, and its purpose is to provide a method for manufacturing a magnetic head that can prevent the occurrence of individual polishing during tape polishing of the magnetic head b. It's Surano.
（ニ）課題を解決するための手段
この発明は、回転ドラム上に固着して回転される磁気ヘ
ッドに研磨テープを摺動させて磁気ヘッドと磁気テープ
との摺動面の研磨仕上げを行なう研磨方法において、磁
気ヘッドに摺動させた研磨テープを磁気ヘッドの先端部
両側で回転ドラム表面に接触しないように移動させるこ
とにより磁気ヘッドの製造方法としたものである。(d) Means for Solving the Problems This invention provides a polishing method for polishing the sliding surface between the magnetic head and the magnetic tape by sliding an abrasive tape over a magnetic head that is fixed on a rotating drum and rotates. In this method, a magnetic head is manufactured by moving an abrasive tape that has been slid onto a magnetic head so as not to contact the surface of a rotating drum on both sides of the leading end of the magnetic head.
（ホ）作用
回転ドラムを回転し研磨テープを走行させると、研磨テ
ープは磁気ヘッドの両側で回転ドラムと接触していない
ため、磁気ヘッドに対する研磨テープの摺動面は、磁気
ヘッドの回転方向側の而から反対側の面へと常に移動し
、磁気ヘッドの先端部を均一に研磨する。(e) Operation When the rotating drum is rotated and the abrasive tape runs, the abrasive tape is not in contact with the rotating drum on both sides of the magnetic head, so the sliding surface of the abrasive tape against the magnetic head is on the side in the direction of rotation of the magnetic head. The tip of the magnetic head is polished uniformly by constantly moving from one side to the other side.
（へ）実施例
この発明を第１図および第２図に示づ゛実施例に基づき
詳述する。しかし、これによってこの発明が限定される
乙のではない。(F) Embodiments The present invention will be described in detail based on embodiments shown in FIGS. 1 and 2. However, this does not limit the invention.
第１図において、■は回転ドラム２の表面に固着された
４個の磁気ヘッドで、回転ドラム２とともに回転される
磁気ヘッドｌには、テープガイド４．４によって研磨テ
ープ３が押圧されている。In FIG. 1, ■ indicates four magnetic heads fixed to the surface of the rotating drum 2, and the polishing tape 3 is pressed by the tape guide 4.4 to the magnetic head 1, which rotates together with the rotating drum 2. .
この発明にかかる磁気ヘッドの製造方法は、磁気ヘッド
１に押圧される研磨テープ３が磁気ヘッドｌの両側で回
転ドラム２の表面に接触しないようにしたことを特徴と
するものである。The method of manufacturing a magnetic head according to the present invention is characterized in that the abrasive tape 3 pressed against the magnetic head 1 does not come into contact with the surface of the rotating drum 2 on both sides of the magnetic head 1.
次に、回転ドラム２上の磁気ヘッド１が研磨テープ３ａ
と接触して摺動し始めるＦの位置からＧ。Next, the magnetic head 1 on the rotating drum 2 is moved to the polishing tape 3a.
G from position F where it contacts and starts sliding.
Ｈを経て研磨テープ３ｄとの接触を失うＩの位置まで回
転する間の研磨工程を、第２図に基づいて説明する。The polishing process during rotation through H to position I where it loses contact with the polishing tape 3d will be explained based on FIG. 2.
磁気ヘッド１ｈ＜Ｆの位置で研磨テープ３ａと接触し始
めるとき、磁気ヘッドｌと研磨テープ３ａとの摺動面は
磁気ヘッド１の回転方向側だけであリ、研磨テープ３ａ
が回転ドラム２と接触するのも磁気ヘッドｌの回転方向
側だけである。そして、磁気へソドｌがＦの位置からＧ
の位置へと回転していくにつれて、磁気ヘッドｌと研磨
テープ３ｂとの（１１動而は、その面積を遂次増加させ
ながら磁気ヘッドｌの回転方向側から反対方向側に移動
１７て行く。When the magnetic head 1h<F starts to come into contact with the polishing tape 3a, the sliding surface between the magnetic head l and the polishing tape 3a is only on the rotational direction side of the magnetic head 1, and the polishing tape 3a
The contact with the rotating drum 2 is only on the side in the rotational direction of the magnetic head l. Then, the magnetic heel l moves from position F to G
As the magnetic head l and the polishing tape 3b rotate to the position shown in FIG.
磁気ヘッド１が■Ｉの位置に回転してきたとき、磁気ヘ
ッドｌと研磨テープ３ｃとの摺動面は、磁気ヘッドｌの
先端部の左右両側にほぼ対称に形成される。このとき、
磁気ヘッドｌの左右両側の研磨テープ３ｃは、回転ドラ
ム２の直視、あるいは回転ドラム２に対４′るテープガ
イド４．４の相対的ｌよ位置を門整する等の手段により
、回転ドラム２の表面に接触１．ないように保持されて
いる。そ（〕ご、磁気ヘッドｌが■］の位置から■の位
置に回転していくと、磁気ヘッド１と研磨テープ３ｄと
の摺動面は、遂次その面積を減少しながら磁気ヘッド１
の回転方向側から反対方向側へと移動していく。When the magnetic head 1 rotates to the position ①I, the sliding surfaces between the magnetic head 1 and the polishing tape 3c are formed almost symmetrically on both sides of the tip of the magnetic head 1. At this time,
The abrasive tapes 3c on both the left and right sides of the magnetic head 1 are attached to the rotating drum 2 by looking directly at the rotating drum 2, or by adjusting the relative position of the tape guide 4.4 relative to the rotating drum 2. Touching the surface 1. It is kept as if it were not. When the magnetic head l rotates from the position ■ to the position ■, the area of the sliding surface between the magnetic head 1 and the polishing tape 3d gradually decreases as the magnetic head l rotates from the position ■ to the position ■.
It moves from the rotation direction side to the opposite direction side.
以」−説明した一連の研磨過程では、磁気ヘッドｌと研
磨テープ３ａ−・〜３ｄの摺！ＩＩＪＪ面は、磁気ヘッ
ド■の回転につれて磁気ヘプト１の回転方向側の而から
反対方向側の而へと常に移動している。このため、磁気
ヘッド１の摺動面の研磨中のある瞬間において、磁気ヘ
ッド１と研磨テープ３ａ＝３（Ｊとの間に磁気ヘッドｌ
の偏研磨の原因となるような圧力分布が発生していても
、回転ドラム２の回転に伴う磁気ヘッド１と研磨テープ
３ａ〜３ｄとの摺動面が移動するため、磁気ヘッド１の
研磨面は滑らかな曲面に化上げられ、大きな偏研磨の発
生するのを確実に防止することができる。In the series of polishing processes described above, the magnetic head l and the polishing tapes 3a to 3d are rubbed! The IIJJ plane always moves from the side in the rotation direction of the magnetic hept 1 to the side in the opposite direction as the magnetic head (2) rotates. Therefore, at a certain moment during polishing of the sliding surface of the magnetic head 1, the magnetic head l
Even if a pressure distribution that causes uneven polishing occurs, the sliding surface between the magnetic head 1 and the polishing tapes 3a to 3d moves as the rotating drum 2 rotates, so the polishing surface of the magnetic head 1 is formed into a smooth curved surface, and the occurrence of large uneven polishing can be reliably prevented.
（ト）発明の効果
この発明によれば、研磨テープを回転ドラム表面に接触
させないで磁気ヘッドのテープ摺動面を研磨できるため
、滑らかな摺動面を持ち、かつ偏研磨の発生を防止され
た磁気ヘッドを能率良く製造することができる。(G) Effects of the Invention According to the present invention, the tape sliding surface of the magnetic head can be polished without bringing the polishing tape into contact with the surface of the rotating drum, thereby providing a smooth sliding surface and preventing uneven polishing. A magnetic head can be manufactured efficiently.
しかも、この発明により製造された上記特徴を有する磁
気ヘッドは、磁気テープに情報の記録再生を行なう際に
ｆｆ１ａテープとの間に良好な摺動状聾を保持すること
ができるため、磁気テープを用いた磁気記録再生装置の
高密度化、人容量化にら寄１ｊ、 ’ｄ−ることかでき
る。Moreover, the magnetic head manufactured by the present invention having the above-mentioned characteristics can maintain good sliding contact between the magnetic tape and the FF1A tape when recording and reproducing information on the magnetic tape. It is possible to increase the density and capacity of the magnetic recording/reproducing device used.
第１図はこの発明の方法を実施する装置の一例を示す正
面図、第２図はこの発明の研磨プロセスを示す詳細図、
第３図は従来の方法を実施する装置を示す正面図、第４
図および第５図はそれぞれ従来の研磨方法の問題点を説
明する要部詳細図である。
第 １ 図
１・・・・・磁気ヘッド、２・・・・・回転ドラム、３
．３ａ〜３ｄ・・・・・・研磨テープ。FIG. 1 is a front view showing an example of an apparatus for carrying out the method of the present invention, and FIG. 2 is a detailed view showing the polishing process of the present invention.
Figure 3 is a front view showing an apparatus for carrying out the conventional method;
FIG. 5 and FIG. 5 are detailed views of main parts, respectively, for explaining the problems of the conventional polishing method. 1. Figure 1... Magnetic head, 2... Rotating drum, 3
．． 3a to 3d... Polishing tape.
Claims (1)
磨テープを摺動させて磁気ヘッドと磁気テープとの摺動
面の研磨仕上げを行なう研磨方法において、 磁気ヘッドに摺動させた研磨テープを磁気ヘッドの先端
部両側で回転ドラム表面に接触しないように移動させる
ことを特徴とする磁気ヘッドの製造方法。[Scope of Claims] 1. In a polishing method for polishing the sliding surface between the magnetic head and the magnetic tape by sliding an abrasive tape on a magnetic head fixed on a rotating drum and rotating, the polishing method comprises: A method of manufacturing a magnetic head, characterized in that a sliding abrasive tape is moved on both sides of the tip of the magnetic head so as not to contact the surface of a rotating drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63330631A JPH0775051B2 (en) | 1988-12-26 | 1988-12-26 | Method of manufacturing magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63330631A JPH0775051B2 (en) | 1988-12-26 | 1988-12-26 | Method of manufacturing magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02173911A true JPH02173911A (en) | 1990-07-05 |
| JPH0775051B2 JPH0775051B2 (en) | 1995-08-09 |
Family
ID=18234828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63330631A Expired - Fee Related JPH0775051B2 (en) | 1988-12-26 | 1988-12-26 | Method of manufacturing magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0775051B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172110A (en) * | 1983-03-18 | 1984-09-28 | Sanyo Electric Co Ltd | Head grinding device |
| JPS6261456U (en) * | 1985-10-05 | 1987-04-16 |
-
1988
- 1988-12-26 JP JP63330631A patent/JPH0775051B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172110A (en) * | 1983-03-18 | 1984-09-28 | Sanyo Electric Co Ltd | Head grinding device |
| JPS6261456U (en) * | 1985-10-05 | 1987-04-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0775051B2 (en) | 1995-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |