JPS60260078A - Mold releasing agent coating device - Google Patents
Mold releasing agent coating deviceInfo
- Publication number
- JPS60260078A JPS60260078A JP11717584A JP11717584A JPS60260078A JP S60260078 A JPS60260078 A JP S60260078A JP 11717584 A JP11717584 A JP 11717584A JP 11717584 A JP11717584 A JP 11717584A JP S60260078 A JPS60260078 A JP S60260078A
- Authority
- JP
- Japan
- Prior art keywords
- release agent
- fixing roller
- holding plate
- porous
- mold release
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
- G03G15/2025—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid
Abstract
Description
【発明の詳細な説明】
（目的） −
（産業上の利用分野）
本発明はプレインペーパ＝＋ コピ（Ｐｌａｉｎ Ｐａ
ｐｅｒ Ｑ）ｐｙ）（ＰＰＣ）複写機、ファクシミリ等
に用いる離型剤塗布装置に関するものである。[Detailed Description of the Invention] (Objective) - (Industrial Application Field) The present invention is based on the use of plain paper = + copy.
per Q) py) (PPC) This relates to a release agent coating device used in copying machines, facsimile machines, etc.
（従来技術）
ＰＰＣ，複写機における定着機構としては第５図に示す
ように基本的には紙（１１）面に転写されたトナー（１
２）を加熱定着ロール（１）とゴムロール等の弾性のあ
る加圧ロール（１３）の間を通過させ温度をかけながら
圧着し焼き付けることにある。なお（１４）はブレード
、（１５）は剥離爪である。(Prior art) As shown in Fig. 5, the fixing mechanism in PPC and copying machines basically fixes toner (11) transferred to paper (11).
2) is passed between a heat fixing roll (1) and an elastic pressure roll (13) such as a rubber roll, and is pressed and baked while applying heat. Note that (14) is a blade and (15) is a peeling claw.
このような機構において、加熱された定着ロールと弾性
のある加圧ロールとの間をトナーの付着した紙面が通過
すると紙白体がロールに付着してロールに巻きつき完全
な焼付けが出来ないとか、コピ紙に転写されたトナーが
定着ロールに付着し画像が二重写しになる（所謂オフセ
ット現象）とか、設備の故障とかいった問題が発生する
。従って従来よりこの点について種々検討されているが
最終的には離型剤塗布装置により定着ロール及び弾性ロ
ールに離型のための離型剤を塗布する手段がとられてい
る。In such a mechanism, when paper with toner on it passes between a heated fixing roll and an elastic pressure roll, the white paper adheres to the roll and wraps around the roll, preventing complete printing. Problems occur, such as toner transferred to the copy paper adhering to the fixing roll, resulting in double copies of the image (so-called offset phenomenon), and equipment failure. Therefore, various studies have been made in the past regarding this point, but ultimately a method has been adopted in which a release agent is applied to the fixing roll and the elastic roll for mold release using a release agent coating device.
このための離型剤塗布装置には従来広の如きものがある
。先に本願出願人が≠＃≠≠≠≠特許出願したように（
第６図参照）、４弗化エチレン樹脂の多孔質膜（３）に
突起を設け、耐熱性プラスチックや金属から成る長溝を
設けたタンク（２）の長溝から多孔質膜の突起を突出さ
せ、この突起に耐熱フェルトや４弗化エチレン樹脂の多
孔質体からなる形状維持体（４）を入れ、平らな押え板
（５）にて押え込み多孔質膜及び形状維持体を固定する
。そしてタンク内に離型剤（通常はシリコーンオイル）
（６）を入れ４弗化エチレン樹脂多孔質膜（６）を通し
て定着ローラ（１）に離型剤を均一に適量塗布するもの
である。また定着ローラの回転が早い場合には塗布部の
倒れや変形を防止する為に図のように、定着ローラの回
転方向後方に倒れ防止リブ（７）を設けたりする。There are conventional release agent coating devices for this purpose. As the applicant previously filed a patent application (
(See Figure 6), protrusions are provided on the porous membrane (3) of tetrafluoroethylene resin, and the protrusions of the porous membrane are made to protrude from the long grooves of the tank (2), which is provided with long grooves made of heat-resistant plastic or metal. A shape-maintaining body (4) made of a porous material such as heat-resistant felt or tetrafluoroethylene resin is inserted into this protrusion, and the porous membrane and shape-maintaining body are fixed by pressing with a flat holding plate (5). and mold release agent (usually silicone oil) in the tank.
(6) and uniformly coats an appropriate amount of the release agent onto the fixing roller (1) through the porous tetrafluoroethylene resin membrane (6). Further, when the rotation of the fixing roller is fast, in order to prevent the coating section from falling or deforming, a fall prevention rib (7) is provided at the rear in the rotational direction of the fixing roller as shown in the figure.
（発明が解決しようとする問題点）
しかし乍ら上記従来の塗布装置に於いても未だ下記のよ
うな問題点がある。即ち
■ 膜のセツティングが悪いと両端がローラと離れたり
、中央部がういたりする（第４図参照）。(Problems to be Solved by the Invention) However, the above conventional coating apparatus still has the following problems. That is, (1) If the film is improperly set, both ends may separate from the roller or the center may sag (see Figure 4).
即ち突部長手方向（ローラとの接触面）の水平度が出難
い。In other words, it is difficult to maintain levelness in the longitudinal direction of the protruding length (the contact surface with the roller).
■ 押えすぎると突部の倒れ防止リブが定着ローラに接
触し、定着ローラを傷つけることがある。■ If you press down too much, the anti-falling ribs on the protrusions may come into contact with the fixing roller and damage the fixing roller.
■ 倒れ防止リブと４弗化エチレン樹脂多孔質膜の間に
トナーや紙粉がた１り定着ローラ表面のきずの原因にな
ったりすることがある。■ Toner and paper particles may accumulate between the anti-falling rib and the polytetrafluoroethylene resin porous membrane, which may cause scratches on the surface of the fixing roller.
上記に鑑み本発明は上記■〜■の問題点を解消するため
開発されたものである。In view of the above, the present invention has been developed to solve the above problems (1) to (2).
（構成）
即ち本発明の離型剤塗布装置は、離型剤をみたすタンク
に、その底部の定着ロール長さ方向の細長い開口部から
突出して、高分子多孔質膜を取り付け、多孔質膜から離
型剤を滲透させるよう構成した離型剤塗布装置に於いて
、多孔質膜を固定する押え板に、前記タンク底部の細長
い開口部長さ方向の離型剤の通る細長い開口部を備える
突起を設け、上記突起を多孔質膜の内側に位置せしめた
ことを特徴とするものである。(Structure) That is, in the mold release agent application device of the present invention, a porous polymer membrane is attached to a tank filled with a mold release agent, protruding from an elongated opening in the longitudinal direction of the fixing roll at the bottom of the tank, and a porous polymer membrane is attached to the tank filled with the mold release agent. In a mold release agent applicator configured to allow the mold release agent to permeate, the holding plate for fixing the porous membrane has a protrusion having an elongated opening through which the mold release agent passes in the longitudinal direction of the elongated opening at the bottom of the tank. The invention is characterized in that the protrusion is located inside the porous membrane.
以下例示の図面に就いて本発明の詳細な説明する。The present invention will be described in detail below with reference to the illustrative drawings.
（問題点を解決するための手段）
即ち本発明に於いては第１．２図に示す様に、４弗化エ
チレン樹脂多孔質膜（３）の突部にそうような形状で押
え板（５）に突起（８）を設は突部の倒れ及び変形を防
止する。この場合押え板の突起と４弗化エチレン樹脂多
孔質膜の間には、定着ローラとのなじみを良くしローラ
への接触を柔かくするため耐熱フェルト等の多孔質形状
維持体（４）を入れておく。また押え板には離型剤の通
路として形状維持体をおおいかくさないような定着ロー
ラ長さ方向の細長い開口部例えば長溝を設けておく必妾
要がある。(Means for solving the problem) That is, in the present invention, as shown in Fig. 1.2, a holding plate ( 5) is provided with a protrusion (8) to prevent the protrusion from falling and deforming. In this case, a porous shape-maintaining material (4) such as heat-resistant felt is inserted between the protrusion of the presser plate and the polytetrafluoroethylene resin porous membrane in order to improve compatibility with the fixing roller and soften contact with the roller. I'll keep it. Further, it is necessary to provide the presser plate with an elongated opening in the longitudinal direction of the fixing roller, such as a long groove, so as not to cover the shape maintaining body as a path for the release agent.
（作用）
上記によると、
■ 倒れ防止リブは多孔質体の内部にある為、リブはロ
ーラに接触することがない。又トナーがたまることがな
い従って定着ローラが傷つきにく い。(Function) According to the above, ■ Since the fall prevention rib is inside the porous body, the rib does not come into contact with the roller. Also, since toner does not accumulate, the fixing roller is less likely to be damaged.
■ 押え板の突起で４弗化エチレン樹脂多孔質膜の突部
が規制される為、定着ローラとの接触面の水平度が確実
に出る。■ Since the protrusions on the holding plate restrict the protrusions of the polytetrafluoroethylene resin porous membrane, the levelness of the contact surface with the fixing roller is ensured.
（効果）
以上本発明を説明した様に、本発明の塗布装置は下記の
効果を有している。(Effects) As described above, the coating device of the present invention has the following effects.
（発明の効果） ■ 定着ローラが傷つきにくい。(Effect of the invention) ■ The fixing roller is less likely to be damaged.
■ 定着ローラとの接触面の水平度が確実に出る。■ Ensures levelness of the contact surface with the fixing roller.
第１図は本発明の離型剤塗布装置の断面図、第２図は第
１図の本発明の離型剤塗布装置に於いて用いる押え板の
正面図（図（ａ））と断面図（図（ｂ））を夫々例示し
ている。
第６図は本特許出願人が先に特許出願した離型剤塗布装
置の断面図、第４図は第６図のものの不具合を説明する
図である。
第５図は一般の定着機構の説明図である。
（１）・・・定着ローラ、（２）・・・タンク、（３）
・・・４弗化エチレン樹脂多孔質膜、（４）・・・形状
維持体、（５）・・・押え板、（６）・・・離型剤、（
７）・・・倒れ防止リブ、（８）・・・押え板の突起、
（９）・・・開口部
オ １ 図
才２図
オ ３ 図
第４図
第５図FIG. 1 is a cross-sectional view of the mold release agent coating device of the present invention, and FIG. 2 is a front view (Figure (a)) and a cross-sectional view of a presser plate used in the mold release agent coating device of the present invention shown in FIG. (Figure (b)) is shown as an example. FIG. 6 is a cross-sectional view of a release agent applicator for which the applicant of this patent previously applied for a patent, and FIG. 4 is a diagram illustrating a problem with the device shown in FIG. 6. FIG. 5 is an explanatory diagram of a general fixing mechanism. (1)...Fixing roller, (2)...Tank, (3)
... Tetrafluoroethylene resin porous membrane, (4) ... Shape maintaining body, (5) ... Pressing plate, (6) ... Mold release agent, (
7) ... Fall prevention rib, (8) ... Protrusion of presser plate,
(9)...Opening O 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
長さ方向の細長い開口部から突出して、高分子多孔質膜
を取り付け、多孔質膜から離型剤を滲透させるよう構成
した離型剤塗布装置に於いて、多孔質膜を固定する押え
板に、前記タンク底部の細長い開口部長さ方向の離型剤
の通る細長い開口部を備える突起を設け、上記突起を多
孔質膜の内側に位置せしめたことを特徴とする離型剤塗
布装置。 （２）多孔質膜と押え板の突起との間に形状維持体を存
在せしめた特許請求の範囲第（１）項記載の離型剤塗布
装置。 （６）形状維持体が厚み０．５〜５ｒｒｎの耐熱フェル
トであることを特徴とする特許請求の範囲第（２）項記
載の離型剤塗布装置。 （４） 高分子多孔質膜が４弗化エチレン樹脂多孔質膜
である特許請求の範囲第（１）項記載の離型剤塗布装置
。[Scope of Claims] (1) A porous polymer membrane is attached to a tank filled with a mold release agent, protruding from an elongated opening in the longitudinal direction of the fixing roll at the bottom of the tank, and the mold release agent permeates through the porous membrane. In the mold release agent applicator configured to allow the release agent to pass through, the holding plate for fixing the porous membrane is provided with a protrusion having an elongated opening through which the release agent passes in the longitudinal direction of the elongated opening at the bottom of the tank. A mold release agent application device characterized in that it is located inside a porous membrane. (2) The mold release agent coating device according to claim (1), wherein a shape maintaining body is provided between the porous membrane and the protrusion of the presser plate. (6) The release agent coating device according to claim (2), wherein the shape maintaining body is a heat-resistant felt having a thickness of 0.5 to 5 rrn. (4) The release agent coating device according to claim (1), wherein the porous polymer membrane is a porous tetrafluoroethylene resin membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11717584A JPS60260078A (en) | 1984-06-06 | 1984-06-06 | Mold releasing agent coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11717584A JPS60260078A (en) | 1984-06-06 | 1984-06-06 | Mold releasing agent coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60260078A true JPS60260078A (en) | 1985-12-23 |
Family
ID=14705287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11717584A Pending JPS60260078A (en) | 1984-06-06 | 1984-06-06 | Mold releasing agent coating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60260078A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63100760U (en) * | 1986-12-19 | 1988-06-30 |
-
1984
- 1984-06-06 JP JP11717584A patent/JPS60260078A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63100760U (en) * | 1986-12-19 | 1988-06-30 |
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