JPS61158118A - Manufacture of magnet roll - Google Patents
Manufacture of magnet rollInfo
- Publication number
- JPS61158118A JPS61158118A JP27907084A JP27907084A JPS61158118A JP S61158118 A JPS61158118 A JP S61158118A JP 27907084 A JP27907084 A JP 27907084A JP 27907084 A JP27907084 A JP 27907084A JP S61158118 A JPS61158118 A JP S61158118A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- hole
- shaft
- adhesive
- roll
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
Abstract
Description
【発明の詳細な説明】
（イ）目的
〔産業上の利用分野〕
この発明は、マグネットロールに係り、主として静電複
写機における磁気ブラシ用のマグネットロールの製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Purpose [Field of Industrial Application] The present invention relates to a magnet roll, and mainly relates to a method of manufacturing a magnet roll for a magnetic brush in an electrostatic copying machine.
一般にマグネットロールは、ロール状マグネットと金属
製のシヤフトを備え、そのシヤフトによってマグネット
が支持、回転されるようになっている。接着剤によって
ロール状マグネットとシヤフトを固着するマグネットロ
ールの製造においては、通常、ロール状マグネットのシ
ヤフト用貫通孔の内周面又はシヤフトの外周面に接着剤
を塗布しその貫通孔にシヤフトを挿入して、両者を固着
する方法が用いられている。（たとえば特開昭５５−７
７２２号参照）。Generally, a magnet roll includes a rolled magnet and a metal shaft, and the magnet is supported and rotated by the shaft. When manufacturing a magnet roll in which a rolled magnet and a shaft are fixed with an adhesive, the adhesive is usually applied to the inner peripheral surface of the shaft through-hole of the rolled magnet or the outer peripheral surface of the shaft, and the shaft is inserted into the through-hole. A method is used in which the two are fixed together. (For example, JP-A-55-7
(See No. 722).
従来のこのような方法では、シヤフトをマグネットに挿
入する時、両者の接触により塗布した接。In this conventional method, when the shaft is inserted into the magnet, the contact between the two causes the adhesive to be applied.
着剤がかき落とされ、シヤフトの外周面とマグネットの
貫通穴の内周面との間で接着剤が充分に充てんされず、
局部的にしか付着しない。従ってこ。The adhesive is scraped off, and the adhesive is not sufficiently filled between the outer circumferential surface of the shaft and the inner circumferential surface of the magnet's through hole.
It only sticks locally. Therefore.
れらの両者間の接着力が十分ではなく、衝撃や経年変化
によって両者が離脱するという問題があった。There was a problem that the adhesive strength between the two was not sufficient, and the two would separate due to impact or aging.
この発明は、このような事情に鑑みてなされたもので、
接着方法およびその工程を検討して、シヤフトとマグネ
ットとの接着面積が大きく、両者が十分な接着力で固着
されるマグネットロールの製造方法を提供するものであ
る。This invention was made in view of these circumstances,
By examining the bonding method and its process, the present invention provides a method for manufacturing a magnet roll in which the bonding area between the shaft and the magnet is large and the two are fixed with sufficient adhesive force.
（ロ）発明の構成
この発明によるマグネットロールの製造方法は、シヤフ
ト用の貫通孔をもつ長尺のロール状マグネットの孔の内
面に接着剤を塗布し、前記接着剤を乾燥固化し、前記ロ
ール状マグネットを所定寸法に切断し、切断された前記
ロール状マグネットの貫通孔の内面に溶剤を塗布して前
記接着剤の表面を活性化し、前記ロール状マグネットの
貫通孔の一方に圧さく空気を供給しつ一１他方からシヤ
フトを嵌入する、工程を備えたことを特徴とする。(B) Structure of the Invention The method for manufacturing a magnet roll according to the present invention is to apply an adhesive to the inner surface of the hole of a long roll-shaped magnet having a through hole for a shaft, dry and solidify the adhesive, and then A magnet is cut into a predetermined size, a solvent is applied to the inner surface of the through hole of the cut roll magnet to activate the surface of the adhesive, and air is forced into one of the through holes of the roll magnet. It is characterized by comprising a step of supplying one shaft and inserting the shaft from the other.
前記接着剤としては、クロロプレンゴム系、ニトリルゴ
ム系、ブチルゴム系、ＳＢＲ系、天然ゴム系、酢酸ビニ
ール系などの接着剤が挙げられる。Examples of the adhesive include chloroprene rubber-based, nitrile rubber-based, butyl rubber-based, SBR-based, natural rubber-based, and vinyl acetate-based adhesives.
前記溶□剤としては、ＭＥＫ （メチル・エチル・ケト
ン）、エチレンジクロライド、キシレン、ベンゼン、酢
酸エチル、シクロヘキサン、メタノール、アセトン、メ
チルセロソルブなどが挙げられる。Examples of the solvent include MEK (methyl ethyl ketone), ethylene dichloride, xylene, benzene, ethyl acetate, cyclohexane, methanol, acetone, and methyl cellosolve.
前記ロール状マグネットの貫通穴の内面に接着剤を塗布
する方法は、第１図（ａｌに示す方法が好ましい。即ち
第１図（ａ）において、接着剤（１０１）を容器（１０
２）に収容し、ロール状マグネット（１０４ａ）の一端
を、容器（１０２）に設けられた支持筒（１０３）の上
に密着させて固定し、他端に吸引ホース（１０５）を接
続して矢印Ａの方向へ吸引ポンプ（図示しない）で接着
剤（１０１）を吸引する。これによって接着剤（１０１
）は、ロール状マグネット（１０４ａ）の孔の内面に接
触しつ＼吸引され、その内面全体に一様に塗布される。The method of applying the adhesive to the inner surface of the through hole of the roll-shaped magnet is preferably the method shown in FIG. 1 (al). In other words, in FIG.
2), one end of the rolled magnet (104a) is tightly fixed on the support tube (103) provided in the container (102), and a suction hose (105) is connected to the other end. Adhesive (101) is sucked in the direction of arrow A using a suction pump (not shown). This allows the adhesive (101
) comes into contact with the inner surface of the hole of the roll magnet (104a) and is attracted, and is uniformly applied to the entire inner surface.
前記ロール状マグネットの貫通孔の内面に溶剤を塗布す
る方法は、ロール状マグネットが長尺であれば第１図（
ａ）と同様の方法が好ましいが、ロール状マグネットが
比較的な短尺の場合には噴霧器などを用いて貫通孔の内
面に溶剤を吹付けるようにしてもよい。The method of applying a solvent to the inner surface of the through-hole of the roll-shaped magnet is as shown in Fig. 1 (if the roll-shaped magnet is long).
A method similar to a) is preferred, but if the rolled magnet is relatively short, a sprayer or the like may be used to spray the solvent onto the inner surface of the through hole.
前記ロール状マグネットの貫通孔にシヤフトを嵌入する
方法としては、第１回申）に示す方法が好ましい。つま
り１、第１図申）において、圧さく空気を吹込むための
空気孔（１０６）と、シヤフトのにがし孔（１０７）を
備えた設置台（１０８）の上に所定の寸法に切断したロ
ール状のマグネツ） （１０４ｂ）を直立させて設置し
、上部のブレス治具（１０９）にシヤフト（１１０）と
マグネット（１０４ｂ）の貫通孔とが同軸に位置するよ
うシヤフト（１１０）の一端を図のように固定する。そ
して、圧さく空気を空気孔（１０６）から矢印（Ｂ）の
方向に供給しながら同時にプレス治具（１０９）を矢印
（ｃ）の方向に下降させてシヤフト（１１０）をマグネ
ット（１０４ｂ）の貫通孔に挿入する。As a method for fitting the shaft into the through hole of the roll-shaped magnet, the method shown in Part 1) is preferable. In other words, in 1. Figure 1), a roll cut to a predetermined size is placed on an installation stand (108) equipped with an air hole (106) for blowing compressed air and a shaft buffing hole (107). (104b) is installed upright, and one end of the shaft (110) is placed in the upper brace jig (109) so that the shaft (110) and the through hole of the magnet (104b) are located coaxially. Fix it like this. Then, while supplying compressed air from the air hole (106) in the direction of arrow (B), the press jig (109) is simultaneously lowered in the direction of arrow (c) to move the shaft (110) onto the magnet (104b). Insert into the through hole.
圧さく空気によってマグネット（１０４，ｂ）は膨張し
て貫通孔の内径が増大するので、シャツ） （１１０）
はマグネット（１０４ｂ）の貫通孔の内面の接着剤の塗
布面を傷つけることなく挿入され、挿入後は収縮するマ
グネット（１０４ｂ）によって押圧されマグネット（１
０４ｂ）の内面に強固に接着される。The compressed air causes the magnet (104,b) to expand and the inner diameter of the through hole to increase, causing the shirt (110)
is inserted into the through hole of the magnet (104b) without damaging the adhesive coated surface on the inner surface, and after insertion, it is pressed by the shrinking magnet (104b) and the magnet (1
04b) is firmly adhered to the inner surface.
第２図は、この発明によって製造した現像用７１ト ゲネットロールので実施例を示す縦断面図である。 FIG. 2 shows 71 developing cartridges manufactured according to the present invention. FIG. 2 is a longitudinal cross-sectional view showing an example of Genetroll.
（１）はマグネットロール、（２）はエラストマー系バ
インダーとしてニトリルゴＬ１２重量％、磁性粉末とし
て粒子径１．２μｍのバリウムフェライト８８重量％を
含み外径２６．６ｍ、長さ２６７Ｂのロール状マグネッ
ト、（３）はマグネット（２）を貫通する直径１０．１
鶴、長さ３２０ｆｌのステンレス鋼製シヤフトである。(1) is a magnet roll; (2) is a roll-shaped magnet with an outer diameter of 26.6 m and a length of 267 B, containing 12% by weight of nitrile rubber as an elastomer binder and 88% by weight of barium ferrite with a particle size of 1.2 μm as a magnetic powder; (3) is a diameter of 10.1 that passes through magnet (2)
It is a stainless steel shaft with a length of 320 fl.
組立以前のマグネットロール（１）において、ロール状
マグネット（２）は押出成形によって製造され、長さ１
ｍ、貫通孔内径１０．Ｏｎに仕上げられている。In the magnet roll (1) before assembly, the rolled magnet (2) is manufactured by extrusion molding and has a length of 1
m, through hole inner diameter 10. It is finished on.
このロール状マグネット（２）とシヤフト（３）とは、
次の手順によって組立てられる。This rolled magnet (2) and shaft (3) are
It is assembled by the following steps.
（ａ）クロロプレンゴム系接着剤（商品名ポンドＧ１７
、コニシ■製）を第１図（ａ）に示す方法によって、ロ
ール状マグネット（２）の孔の内面に一様に塗布する。(a) Chloroprene rubber adhesive (product name Pond G17
, manufactured by Konishi Corporation) is uniformly applied to the inner surface of the hole of the roll-shaped magnet (2) by the method shown in FIG. 1(a).
（ｂ）自然乾燥によって、塗布された接着剤を乾燥し固
化させる。(b) The applied adhesive is dried and solidified by air drying.
（ｃ）ロール状マグネット（２）を所定寸法２６７ｆｌ
に切断する。(c) The roll magnet (2) has a specified size of 267 fl.
Cut into.
（ｄｌこのロール状マグネット（２）の孔の内面全体に
、溶剤ＭＥＫ （メチル、エチル、ケトン）をノズルの
細長い噴霧器で吹きつけ、接着剤の固化膜表面を溶解さ
せる。(dl) A solvent MEK (methyl, ethyl, ketone) is sprayed onto the entire inner surface of the holes of the roll-shaped magnet (2) using a long and narrow nozzle sprayer to dissolve the surface of the solidified adhesive film.
（ｅ）ロール状マグネット（２）の孔にシヤフト（３）
を第１図（ｂｌに示す方法によって挿入する。この時
゛シヤフト（３）の直径１０．１ｆｌに対してロール状
マグネットの孔径はｉｏ、Ｏｍであるが、圧さく空気の
膨張力によってロール状マグネットの孔径が拡大される
ので、シヤフト（３）は容易に挿入される。(e) Insert the shaft (3) into the hole of the rolled magnet (2).
is inserted by the method shown in Figure 1 (bl).At this time,
゛The diameter of the shaft (3) is 10.1fl, and the pore diameter of the rolled magnet is io, 0m, but the pore diameter of the rolled magnet is expanded by the expansion force of compressed air, so the shaft (3) can be easily removed. inserted into.
このようにして接着剤を一度ロール状マグネット（２）
の孔の全内面になじませたあと乾燥させて固化膜を形成
し、次にその表面部のみを溶解して、シヤフト（３）の
表面全体に接着させた上、ロール状マグネット（２）の
収縮力により一様に加圧するので接着剤はその両面の全
面にわたって均等に接着作用をおよぼすことになり、強
力な接着力が得られる。In this way, once the adhesive is rolled into the magnet (2)
After applying it to the entire inner surface of the shaft (3), it is dried to form a solidified film, and then only the surface part is melted and adhered to the entire surface of the shaft (3). Since the pressure is applied uniformly by the shrinkage force, the adhesive exerts an adhesive action evenly over the entire surface of both surfaces, resulting in a strong adhesive force.
（ハ）発明の効果
この発明によれば、ロール状マグネットのシヤフト孔に
一様に接着剤を塗布した後乾燥して定着させ、再び接着
剤表面を溶解してシヤフト外周面と全面において接着さ
せるようにし、そしてシヤフト挿入時にはロール状マグ
ネットの孔径をシヤフト外径よりも拡大させて、接着剤
のはく離を防止する。またシヤフト挿入後はロール状マ
グネットの収縮力によって接着部全体が均等に加圧され
る。(C) Effects of the Invention According to this invention, the adhesive is uniformly applied to the shaft hole of the roll magnet, then dried and fixed, and the adhesive surface is melted again to bond the shaft outer circumferential surface and the entire surface. Then, when the shaft is inserted, the hole diameter of the rolled magnet is made larger than the outer diameter of the shaft to prevent the adhesive from peeling off. Furthermore, after the shaft is inserted, the entire bonded area is evenly pressurized by the contraction force of the rolled magnet.
従って接着剤はロール状マグネットの孔の内面とシヤフ
ト外周面との間に全面にわたって一様に介在して接着作
用をおよぼすので、ロール状マグネットとシヤフトが強
固に一体化されたマグネットロールが得られる。Therefore, the adhesive is uniformly interposed over the entire surface between the inner surface of the hole of the roll-shaped magnet and the outer peripheral surface of the shaft and exerts an adhesive action, so that a magnet roll in which the rolled magnet and the shaft are firmly integrated can be obtained. .
第１図（ａｌ （ｂ）はこの発明の製造方法の説明図、
第２図はこの発明に係る一実施例を示す縦断面図である
。
＋１１−一一一・マグネットロール、
（２）−・−・ロール状マグネット、（３）・−シヤフ
ト。
Ｐ！Ｊ２図FIG. 1 (al (b) is an explanatory diagram of the manufacturing method of this invention,
FIG. 2 is a longitudinal sectional view showing one embodiment of the present invention. +11-111・Magnet roll, (2)−・−・Rolled magnet, (3)・−Shaft. P! J2 diagram
Claims (1)
グネツトの孔の内面に接着剤を塗布し、 （ｂ）前記接着剤を乾燥固化し、 （ｃ）前記ロール状マグネツトを所定寸法に切断し、 （ｄ）切断された前記ロール状マグネツトの貫通孔の内
面に溶剤を塗布して前記接着剤の表 面を活性化し、 （ｅ）前記ロール状マグネツトの貫通孔の一方に圧さく
空気を供給しつつ、他方からシヤフ トを嵌入する、 工程を備えたことを特徴とするマグネツトロールの製造
方法。[Claims] 1. (a) Applying an adhesive to the inner surface of the hole of a long roll-shaped magnet having a through hole for a shaft, (b) drying and solidifying the adhesive, (c) cutting the rolled magnet into predetermined dimensions; (d) applying a solvent to the inner surface of the through-hole of the cut roll-shaped magnet to activate the surface of the adhesive; (e) activating the surface of the adhesive; 1. A method for manufacturing a magnet roll, comprising the steps of supplying compressed air to one side and inserting a shaft from the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27907084A JPS61158118A (en) | 1984-12-28 | 1984-12-28 | Manufacture of magnet roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27907084A JPS61158118A (en) | 1984-12-28 | 1984-12-28 | Manufacture of magnet roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61158118A true JPS61158118A (en) | 1986-07-17 |
| JPH0452605B2 JPH0452605B2 (en) | 1992-08-24 |
Family
ID=17605992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27907084A Granted JPS61158118A (en) | 1984-12-28 | 1984-12-28 | Manufacture of magnet roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61158118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464670A (en) * | 1990-04-13 | 1995-11-07 | Seiko Epson Corporation | Resin bound magnet and its production process |
-
1984
- 1984-12-28 JP JP27907084A patent/JPS61158118A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464670A (en) * | 1990-04-13 | 1995-11-07 | Seiko Epson Corporation | Resin bound magnet and its production process |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0452605B2 (en) | 1992-08-24 |
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