JPS60165232A - Manufacture of transfer roller - Google Patents
Manufacture of transfer rollerInfo
- Publication number
- JPS60165232A JPS60165232A JP2142084A JP2142084A JPS60165232A JP S60165232 A JPS60165232 A JP S60165232A JP 2142084 A JP2142084 A JP 2142084A JP 2142084 A JP2142084 A JP 2142084A JP S60165232 A JPS60165232 A JP S60165232A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- roller
- transfer roller
- transfer
- rubber
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 239000005060 rubber Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 238000004073 vulcanization Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0032—Producing rolling bodies, e.g. rollers, wheels, pulleys or pinions
- B29D99/0035—Producing rolling bodies, e.g. rollers, wheels, pulleys or pinions rollers or cylinders having an axial length of several times the diameter, e.g. for embossing, pressing, or printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
- B29L2031/324—Rollers or cylinders having an axial length of several times the diameter, e.g. embossing, pressing or printing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の技術分野）
本発明は電子写真等の分野において使用される転写ロー
ラの製造方法に関する〇
ゼログラフィ像を紙に転写する方法として、電気的にト
ナー粉末像を転写ローラ自体全電極として転写する転写
方式が用いられている。この転写ローラは芯金上にｌ
Ｘ ｌ Ｏ’−Ｉ Ｘ １０” Ｑ ＊ｃｍ（Ｄコム全
被覆したものでめり、このローラの製造方法としては、
芯金上にゴムを押出被覆した後、ロー２軸を含む分割面
を有する金型内にこれをセットし、加圧加硫する方法が
一般的である。しかしながらこの製造方法においては、
金型め割りの位置でゴムがオーバーフローする友め、ゴ
ムが流動しこれにより周方向の電気特性が割り位置で変
化するため、ローラの周方向で転写電圧が均一とならず
画質に影響するという欠点がめった。さらにゴム硬さも
ローラの周方向で部分的に異な９紙への押しつけ圧も不
均一となるため画像へ影響が出るという欠点を有してい
た。Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to a method for manufacturing a transfer roller used in fields such as electrophotography. The present invention relates to a method for manufacturing a transfer roller used in fields such as electrophotography. A transfer method is used in which the transfer roller itself transfers as all electrodes. This transfer roller is placed on the core metal.
X l O'-I
A common method is to extrude and coat rubber onto a core bar, then set it in a mold having a dividing surface including two row shafts, and vulcanize it under pressure. However, in this manufacturing method,
When the rubber overflows at the mold cutting position, the rubber flows and the electrical characteristics in the circumferential direction change at the cutting position, so the transfer voltage is not uniform in the circumferential direction of the roller, which affects image quality. There were many shortcomings. Further, the rubber hardness and the pressing pressure applied to the nine sheets of paper, which are partially different in the circumferential direction of the roller, are also uneven, which has the disadvantage of affecting the image.
（発明の目的）
本発明はこのような従来の欠点全解消すべくなされ友も
ので、円錐状のキャビティを有する金型を使用すること
によりローラ局方向の電気特性の均一な転写ロー２の製
造方法を提供することを目的としている。(Objective of the Invention) The present invention has been made to eliminate all of the drawbacks of the conventional technology, and it is possible to manufacture a transfer roller 2 with uniform electrical characteristics in the local direction of the roller by using a mold having a conical cavity. The purpose is to provide a method.
（発明の概要）
すなわち本発明の転与ローラの製造方法は、芯金外周に
未硬化ゴム組成物を、被覆した後、円錐形のキャビティ
を有する金型内に収容し、前記未硬化ゴム組成物を加熱
することにより硬化させた後、所定の外径に研削するこ
とｔ−脣徴とする。(Summary of the Invention) That is, in the method for manufacturing a transfer roller of the present invention, the outer periphery of a core metal is coated with an uncured rubber composition, and then the uncured rubber composition is placed in a mold having a conical cavity. After hardening the material by heating, it is ground to a predetermined outer diameter.
本発明の転写四−ラ紘例えは次のようにして製造される
が、その方法を図面に基づいて説明する。。The transfer four-layer image of the present invention is manufactured as follows, and the method will be explained based on the drawings. .
まず、芯金外周上に未硬化ゴム組成物を押出被覆して、
これを図に示すような左側キャップｌと右側キャップ２
と円錐形のキャビティを有する本体２とよりなる金型４
円に挿入し、次いで加硫後、金型内より増す出したロー
ラ素材の外周を円柱状に研削することによって得られる
。First, an uncured rubber composition is extruded and coated on the outer periphery of the core metal.
As shown in the figure, the left cap 1 and the right cap 2
and a main body 2 having a conical cavity.
It is obtained by inserting the roller material into a circle, and then, after vulcanization, grinding the outer periphery of the roller material that has protruded from the mold into a cylindrical shape.
加硫成形方法としては上記の他トランスファー成形るる
いは射出成形を用いることもてきる０ここで未硬化性ゴ
ムとしてはブチルゴム、スチレンブタジェンゴム、ポリ
クロロプレンゴム、フタジエンゴム等の汎用、準汎用品
ても良いが、特にエピクロルヒドリンゴムを使用すれば
電気抵抗が安定して、かつ耐オゾン性により優れている
。In addition to the above-mentioned vulcanization molding methods, transfer molding or injection molding may also be used.The uncured rubber used herein may be general-purpose or semi-general-purpose products such as butyl rubber, styrene-butadiene rubber, polychloroprene rubber, phtadiene rubber, etc. However, if epichlorohydrin rubber is used, the electrical resistance will be stable and the ozone resistance will be excellent.
（発明の実施例）
次に本発明の実施例について説明する〇実施例
脱脂したローラ芯金上にプライマーを塗布し、これに加
熱加硫型シリコーンゴムにカーボンブラック金添加混合
した導電性シリコーンゴム組成物（東芝シリコーン社製
）１２０−２４４Ｕ）を押出被覆し、円錐形のキャビテ
ィ（円錐台の底面の外径２６．０關ψ、上面の外径２５
．０鰭ψ）會Ｍする金型で１４５℃×６６分加硫したａ
ｍからと９出して研削処理金石ないローラ外径２４．０
１１１ψ、肉厚７闘の転写ローラｔ−製造した。(Embodiments of the Invention) Next, embodiments of the present invention will be described. 〇Example A primer is applied to a degreased roller core metal, and conductive silicone rubber is mixed with carbon black and gold in heat-curable silicone rubber. The composition (manufactured by Toshiba Silicone Co., Ltd.) 120-244U) was extruded and coated, and a conical cavity (the bottom of the truncated cone had an outer diameter of 26.0 mm and the upper surface had an outer diameter of 25 mm).
．． 0 fin ψ) vulcanized at 145°C for 66 minutes in a mold
Outer diameter of the roller is 24.0 without grinding and grinding process.
A transfer roller T with a thickness of 111ψ and a wall thickness of 7 mm was manufactured.
つぎに、上記のようにして得られた転写ローラの電気抵
抗及びローラ硬度（ＪＩ８Ａに準拠）を測定したところ
抵抗が平均２．０〜２．ｌＸ１ＯΩ・錦て５８の硬度で
めった。（サンプル点社２点とする）比較例
実施例と同様の組成物を円筒状（ローラ外径２５鰭ψ）
に押出被覆し、上型と下型を使用して力ロ硫し、転写ロ
ー２を製造した０
つぎに、上記のようにして得られた転写ローラの特性を
、実施例と同様に測定したところ、抵抗が型側位置では
８．２ＸｌＯ’Ω・α、他の部分ては１．５ＸｌＯ”Ω
・α、硬度叫型割位置て６０、他の部分では５８となり
、抵抗値が周方向にばらつき、硬度もはらついてい友。Next, the electrical resistance and roller hardness (based on JI8A) of the transfer roller obtained as described above were measured, and the average resistance was 2.0 to 2.0. I met it with a hardness of 1×10Ω/Nishikite 58. (2 sample points) Comparative Example The same composition as in Example was prepared in a cylindrical shape (roller outer diameter 25 fins ψ).
Transfer roller 2 was produced by extrusion coating and force-rolling using an upper die and a lower die.Next, the characteristics of the transfer roller obtained as described above were measured in the same manner as in the examples. However, the resistance is 8.2XlO'Ω・α at the mold side position, and 1.5XlO''Ω at other parts.
・α, hardness is 60 at the mold division position and 58 at other parts, the resistance value varies in the circumferential direction, and the hardness also varies.
（発明の効果）
以上説明したように本発明の転写ローラの製造方法によ
れｄ周方向に導電性および硬さの均一な転写ローラを得
ることができる。(Effects of the Invention) As explained above, by the method of manufacturing a transfer roller of the present invention, a transfer roller having uniform conductivity and hardness in the circumferential direction can be obtained.
図社本発明の転写ローラの製造方法に使用する金型の断
面図でるる。
３・・番目錐形のキャピテイ含有する不体４ｏ＠金型Figure 1 is a cross-sectional view of a mold used in the method of manufacturing a transfer roller of the present invention. 3.Incorporeal 4o@mold containing pyramidal capity
Claims (1)
形のキャビティを有する金型内に収容し、前記未硬化ゴ
ム組成物を加熱することにより硬化させた後、所定の外
径に研削することｔ−％徴とする転写ローラの製造方法
。1. After coating the outer periphery of the core metal with an uncured rubber composition, the uncured rubber composition is placed in a mold having a conical cavity, and the uncured rubber composition is cured by heating. A method for manufacturing a transfer roller that uses t-% grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2142084A JPS60165232A (en) | 1984-02-08 | 1984-02-08 | Manufacture of transfer roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2142084A JPS60165232A (en) | 1984-02-08 | 1984-02-08 | Manufacture of transfer roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60165232A true JPS60165232A (en) | 1985-08-28 |
Family
ID=12054504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2142084A Pending JPS60165232A (en) | 1984-02-08 | 1984-02-08 | Manufacture of transfer roller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60165232A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01269968A (en) * | 1988-04-22 | 1989-10-27 | Canon Inc | Image forming device |
-
1984
- 1984-02-08 JP JP2142084A patent/JPS60165232A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01269968A (en) * | 1988-04-22 | 1989-10-27 | Canon Inc | Image forming device |
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