JPH065376B2 - Liquid coating device for sheet - Google Patents
Liquid coating device for sheetInfo
- Publication number
- JPH065376B2 JPH065376B2 JP61135243A JP13524386A JPH065376B2 JP H065376 B2 JPH065376 B2 JP H065376B2 JP 61135243 A JP61135243 A JP 61135243A JP 13524386 A JP13524386 A JP 13524386A JP H065376 B2 JPH065376 B2 JP H065376B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- bead
- water
- liquid
- coating
- 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.)
- Expired - Fee Related
Links
Landscapes
- Photographic Developing Apparatuses (AREA)
- Coating Apparatus (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はシート用液体塗布装置に係り、特に、熱現像感
光材料又はその受像紙に水等の画像形成用溶媒を塗布す
るのに好適なシート用液体塗布装置に関する。Description: TECHNICAL FIELD The present invention relates to a sheet liquid coating apparatus, and in particular, it is suitable for coating an image forming solvent such as water on a photothermographic material or its image receiving paper. The present invention relates to a sheet liquid applying device.
この種のシート用液体塗布装置では、第３図に示す如
く、水槽１４内の水１６に塗布ローラ１２の一部を漬
け、塗布ローラ１２を回転させ、図示しない搬送ローラ
で受像紙２０を搬送しながら受像紙２０の下面に塗布ロ
ーラ１２の上面を接触させ、受像紙２０に画像形成用溶
媒としての水１６を塗布するようになっている。In this type of sheet liquid coating device, as shown in FIG. 3, a part of the coating roller 12 is immersed in water 16 in a water tank 14, the coating roller 12 is rotated, and the image receiving paper 20 is transported by a transport roller (not shown). On the other hand, the lower surface of the image receiving paper 20 is brought into contact with the upper surface of the coating roller 12, and the water 16 as the image forming solvent is applied to the image receiving paper 20.
受像紙２０への水塗布量の調節は、毛管現象により受像
紙２０と塗布ローラ１２との接触面付近に拡がる水１６
Ａの幅、すなわちビード幅Ｗを調節する必要がある。The amount of water applied to the image receiving paper 20 is adjusted by water 16 spreading near the contact surface between the image receiving paper 20 and the application roller 12 due to a capillary phenomenon.
It is necessary to adjust the width of A, that is, the bead width W.
しかし、このビード幅Ｗは、塗布ローラ１２の回転速度
を変更しても直線的変化をせず、しかも、このような塗
布ローラ１２の回転速度の制御は容易でない。However, the bead width W does not change linearly even if the rotation speed of the coating roller 12 is changed, and it is not easy to control the rotation speed of the coating roller 12 as described above.
また、塗布ローラ１２の径を変更することによりビード
幅Ｗを調節することができるが、塗布ローラ１２を取り
替える必要があるため、作業が容易でない。Further, the bead width W can be adjusted by changing the diameter of the coating roller 12, but the work is not easy because the coating roller 12 needs to be replaced.
本発明の目的は、上記問題点に鑑み、簡単な構成でビー
ド幅Ｗを調節することによりシートへの液体塗布量を調
節することが可能なシート用液体塗布装置を提供するこ
とにある。In view of the above problems, it is an object of the present invention to provide a sheet liquid application device capable of adjusting the amount of liquid applied to a sheet by adjusting the bead width W with a simple configuration.
本発明に係るシート用液体塗布装置は、液層内の塗布液
中に回転体の一部が漬けられ該回転体を回転させて回転
体表面に塗布液を付着させ回転体表面にシートを接して
該付着した塗布液をシートへ塗布するシート用液体塗布
装置において、前記シートと対面配置され、前記シート
と前記回転体との接触面付近に形成されるビードに接触
しシート搬送方向におけるビードの幅を拡げるビード拡
張部材と、前記ビード拡張部材を部分的に前記シートか
ら離間させるビード幅調整手段と、を有することを特徴
としている。In the sheet liquid coating apparatus according to the present invention, a part of the rotating body is immersed in the coating liquid in the liquid layer, the rotating body is rotated, the coating liquid is attached to the surface of the rotating body, and the sheet is brought into contact with the surface of the rotating body. In a sheet liquid applying apparatus for applying the adhered coating liquid to a sheet, the bead in the sheet conveying direction is contacted with a bead formed in the vicinity of the contact surface between the sheet and the rotating body. It is characterized by having a bead expanding member that widens the width and a bead width adjusting means that partially separates the bead expanding member from the sheet.
本発明では、シートと回転体との接触面付近に毛管現象
によってシート搬送方向におけるビードが形成される。
シートと対面配置されたビード拡張部材がこのビードと
接触すると、毛管現象によって、ビードの幅がビード拡
張部材とシートとの間にまで拡張される。In the present invention, a bead in the sheet conveying direction is formed by the capillary phenomenon near the contact surface between the sheet and the rotating body.
When the bead expansion member facing the sheet comes into contact with the bead, capillary action causes the width of the bead to be expanded between the bead expansion member and the sheet.
このビード幅は、ビード調整手段によって、ビード拡張
部材を部分的にシートから離間させることで、毛管現象
が部分的に解消されて縮小される。This bead width is reduced by partially eliminating the capillary phenomenon by partially separating the bead expanding member from the sheet by the bead adjusting means.
これによって、シートへの液体の塗布量が調整可能とな
る。As a result, the amount of liquid applied to the sheet can be adjusted.
第１図及び第２図には本発明の実施例に係る水塗布装置
１０が示されている。1 and 2 show a water coating device 10 according to an embodiment of the present invention.
塗布ローラ１２は、その一部が水槽１４内の水１６に漬
けられ、塗布ローラ１２の端面に突出されたシャフト１
８が脚板２２、２４に軸支されており、塗布ローラ１２
を回転させることにより塗布ローラ１２の表面へ水１６
を付着するようになっている。受像紙２０は、水１６の
水面と平行な搬送経路Ｋに沿って図示しない搬送装置に
より搬送される。塗布ローラ１２の上面は、受像紙２０
の下面と接触するようになっている。The coating roller 12 is partially immersed in the water 16 in the water tank 14, and the shaft 1 is protruded from the end surface of the coating roller 12.
8 is pivotally supported by the leg plates 22 and 24, and the application roller 12
By rotating the
To adhere. The image receiving paper 20 is transported by a transport device (not shown) along a transport path K parallel to the water surface of the water 16. The upper surface of the coating roller 12 is the image receiving paper 20.
It comes in contact with the lower surface of the.
この搬送経路Ｋに対面しかつ塗布ローラ１２の付近にビ
ード拡張体２６が配設されている。ビード拡張体２６
は、翼型のブレード２８の端面へシャフト３０が突設さ
れ、シャフト３０の端部が脚板２２、２４に穿設された
長孔３２を貫通し、このシャフト３０の端部にナット３
４が螺合されて脚板２２、２４へ固着されている。A bead expander 26 is disposed facing the transport path K and near the coating roller 12. Bead extension 26
Has a shaft 30 projecting from the end surface of a blade 28, the end of the shaft 30 passing through an elongated hole 32 formed in the leg plates 22 and 24, and the nut 3 at the end of the shaft 30.
4 is screwed and fixed to the leg plates 22 and 24.
次に、上記の如く構成された本実施例の作用を説明す
る。塗布ローラ１２の上面と受像紙２０との間の水１６
Ａは、毛管現象により、ブレード２８と受像紙２０との
間にも拡張される。このため、ビード幅WAは第３図に示
す従来例の場合のビード幅Ｗよりも広くなる。長孔３２
の長手方向に沿ってシャフト３０を移動させ、シャフト
３０を回転させることにより、ビード幅WAのうちビード
幅WBを調節することができる。例えば、ブレード２８を
第２図一点鎖線で示す位置に移動させればWB＝０とな
る。Next, the operation of this embodiment configured as described above will be described. Water 16 between the upper surface of the coating roller 12 and the image receiving paper 20
A is also expanded between the blade 28 and the image receiving paper 20 by the capillary phenomenon. Therefore, the bead width W A becomes wider than the bead width W in the case of the conventional example shown in FIG. Long hole 32
The bead width W B of the bead width W A can be adjusted by moving the shaft 30 along the longitudinal direction and rotating the shaft 30. For example, if the blade 28 is moved to the position shown by the alternate long and short dash line in FIG. 2, W B = 0.
このように、塗布ローラ１２の回転速度が一定であって
も、ブレード２８の取り付け位置を変更することにより
ビード幅WAを容易に調節することができ、従って受像紙
２０への水塗布量を調節することができる。As described above, even if the rotation speed of the coating roller 12 is constant, the bead width W A can be easily adjusted by changing the mounting position of the blade 28. Therefore, the amount of water applied to the image receiving paper 20 can be adjusted. It can be adjusted.
次に、第４図に従って本発明の第２実施例を説明する。Next, a second embodiment of the present invention will be described with reference to FIG.
この第２実施例では、ブレード２８Ａが略Ｓ字状になっ
ており、毛管現象により水１６Ａが頂点Ｘと受像紙２０
との間を通過すると、ブレード２８Ａの凹面３６へ水１
６Ａが溜まり、多量の水１６Ａを拡張させることができ
るので、受像紙２０への水塗布量を多くすることができ
る。In the second embodiment, the blade 28A is substantially S-shaped, and the water 16A is apex X and the image receiving paper 20 due to the capillary phenomenon.
When it passes between the concave surface 36 of the blade 28A and the water 1
Since 6A is accumulated and a large amount of water 16A can be expanded, the amount of water applied to the image receiving paper 20 can be increased.
次に、第５図に従って本発明の第３実施例を説明する。Next, a third embodiment of the present invention will be described with reference to FIG.
この第３実施例では、上記実施例と異なり、ワイヤ３８
が紙面垂直方向へ張設されている。ワイヤ３８の本数を
変更することによりビード幅WBを調節することができ
る。In the third embodiment, unlike the above embodiment, the wire 38
Is stretched in the direction perpendicular to the paper surface. The bead width W B can be adjusted by changing the number of the wires 38.
なお、ビード拡張部材は、シート搬送経路の面に対面さ
れ、かつ回転体に近設されればよく、第２図において塗
布ローラ１２の左側または塗布ローラ１２の左右両側に
配設してもよい。It should be noted that the bead expanding member may face the surface of the sheet conveying path and may be provided near the rotating body, and may be arranged on the left side of the coating roller 12 or on the left and right sides of the coating roller 12 in FIG. .
本発明は上記構成としたので、回転体の回転速度や回転
体の径を変更しなくても、容易にビード幅を調節でき
る。このビード幅の調節によって、シートへの液体の塗
布量が調整可能となる。Since the present invention has the above configuration, the bead width can be easily adjusted without changing the rotation speed of the rotating body or the diameter of the rotating body. By adjusting the bead width, the amount of liquid applied to the sheet can be adjusted.
第１図は本発明の実施例に係る水塗布装置の斜視図、第
２図は水塗布装置の側面図、第３図は従来例の水塗布装
置を示す側面図、第４図は本発明の第２実施例を示す部
分拡大図、第５図は本発明の第３実施例を示す部分拡大
図である。 １０…水塗布装置 １２…塗布ローラ １４…水槽 １６、１６Ａ…水 ２０…受像紙 ２６…ビード拡張体 ２８…ブレード ３８…ワイヤ Ｗ…ビード幅 Ｋ…搬送経路FIG. 1 is a perspective view of a water coating apparatus according to an embodiment of the present invention, FIG. 2 is a side view of the water coating apparatus, FIG. 3 is a side view showing a conventional water coating apparatus, and FIG. FIG. 5 is a partially enlarged view showing a second embodiment of the present invention, and FIG. 5 is a partially enlarged view showing a third embodiment of the present invention. 10 ... Water coating device 12 ... Coating roller 14 ... Water tank 16, 16A ... Water 20 ... Image receiving paper 26 ... Bead expansion body 28 ... Blade 38 ... Wire W ... Bead width K ... Conveyance path
Claims (1)
れ該回転体を回転させて回転体表面に塗布液を付着させ
回転体表面にシートを接して該付着した塗布液をシート
へ塗布するシート用液体塗布装置において、 前記シートと対面配置され、前記シートと前記回転体と
の接触面付近に形成されるビードに接触しシート搬送方
向におけるビードの幅を拡げるビード拡張部材と、前記
ビード拡張部材を部分的に前記シートから離間させるビ
ード幅調整手段と、を有することを特徴とするシート用
液体塗布装置。1. A part of a rotator is immersed in a coating liquid in a liquid layer, the rotator is rotated to attach the coating liquid to the surface of the rotator, and a sheet is brought into contact with the surface of the rotator to attach the coating liquid. In a sheet liquid applying apparatus for applying a sheet to a sheet, a bead expanding member that is arranged to face the sheet and contacts a bead formed near a contact surface between the sheet and the rotating body to expand the width of the bead in the sheet conveying direction. And a bead width adjusting means for partially separating the bead expansion member from the sheet, the liquid applying apparatus for a sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61135243A JPH065376B2 (en) | 1986-06-11 | 1986-06-11 | Liquid coating device for sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61135243A JPH065376B2 (en) | 1986-06-11 | 1986-06-11 | Liquid coating device for sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62291658A JPS62291658A (en) | 1987-12-18 |
| JPH065376B2 true JPH065376B2 (en) | 1994-01-19 |
Family
ID=15147155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61135243A Expired - Fee Related JPH065376B2 (en) | 1986-06-11 | 1986-06-11 | Liquid coating device for sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065376B2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435083U (en) * | 1977-08-12 | 1979-03-07 | ||
| JPS5417740U (en) * | 1978-06-22 | 1979-02-05 | ||
| JPS59181354A (en) * | 1983-03-31 | 1984-10-15 | Fuji Photo Film Co Ltd | Heat development transfer device |
| JPS59181353A (en) * | 1983-03-31 | 1984-10-15 | Fuji Photo Film Co Ltd | Heat development transfer device |
-
1986
- 1986-06-11 JP JP61135243A patent/JPH065376B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62291658A (en) | 1987-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |