JPS61177841U

JPS61177841U -

Info

Publication number: JPS61177841U
Application number: JP6173685U
Authority: JP
Priority date: 1985-04-26
Filing date: 1985-04-26
Publication date: 1986-11-06

Description

[Brief explanation of the drawing]

第１図は本考案パウダースプレー装置の実施例
(1)の概略図、第２図は従来装置の概略図、第３
図は地上より見た座標系で表したパウダーと紙の
運動を示す速度ベクトル、第４図は紙の上に乗つ
た座標系で表したパウダーの衝突後の速度ベクト
ル、第５図は従来装置における紙の位置とパウダ
ー付着量の関係を示すグラフである。第６図は実
施例(1)における第４図と同様な速度ベクトル、
第７図は実施例(1)における第５図と同様なグラ
フ、第８図は本考案の実施例(2)の概略図、第９
図は実施例(2)における第４図と同様な速度ベク
トル、第１０図は実施例(2)における第５図と同
様なグラフである。１…ブロアー、２…パウダー混入器、３…ノズ
ル、８…バルブ、１０…マシン速度検知器、１１
…制御器。 Figure 1 is an example of the powder spray device of the present invention.
(1) is a schematic diagram, Figure 2 is a schematic diagram of a conventional device, and Figure 3 is a schematic diagram of a conventional device.
The figure shows a velocity vector showing the movement of powder and paper in a coordinate system seen from the ground, Figure 4 shows a velocity vector after the powder collides in a coordinate system on top of the paper, and Figure 5 shows a conventional device. 3 is a graph showing the relationship between the paper position and the powder adhesion amount in FIG. FIG. 6 shows a velocity vector similar to that in FIG. 4 in Example (1),
FIG. 7 is a graph similar to FIG. 5 in Example (1), FIG. 8 is a schematic diagram of Example (2) of the present invention, and FIG.
The figure shows a velocity vector similar to that shown in FIG. 4 in Example (2), and FIG. 10 shows a graph similar to that shown in FIG. 5 in Example (2). 1...Blower, 2...Powder mixer, 3...Nozzle, 8...Valve, 10...Machine speed detector, 11
...Controller.

Claims

[Claim for Utility Model Registration] In a powder spray device for preventing ink set-off in a sheet-fed printing press, a detector for detecting machine speed, a valve for adjusting the amount of powder supply air, and a signal from the detector A powder spray device comprising: a controller for adjusting the opening degree of the valve based on; and the valve opening degree is automatically adjusted in conjunction with the machine speed.