JPS61143830U

JPS61143830U -

Info

Publication number: JPS61143830U
Application number: JP2589185U
Authority: JP
Priority date: 1985-02-25
Filing date: 1985-02-25
Publication date: 1986-09-05

Description

[Brief explanation of the drawing]

第１図は本考案による版胴駆動制御装置を備え
た印刷機を示す概略図。第２図は版胴の駆動機構
の例を示す概略図。第３図は従来の基本的な印刷
機を示す概略図。第４図は給紙に対して印刷され
た印刷部分を示す概略図。第５図および第６図は
版胴および相違による版の端部間隔の変化を示す
概略図。１…巻出しローラー、２…給紙、３…版胴、４
…圧胴、５…巻取りローラー、６，６′…版、７
…インク付けローラー、８…インクローラー、９
…インク槽、１０…インク、１１…印刷部分、２
０…駆動モータ、２１…速度設定器、３０…送り
速度検出器、３１…マーク検出器。 FIG. 1 is a schematic diagram showing a printing press equipped with a plate cylinder drive control device according to the present invention. FIG. 2 is a schematic diagram showing an example of a drive mechanism for a plate cylinder. FIG. 3 is a schematic diagram showing a conventional basic printing press. FIG. 4 is a schematic diagram showing a printed portion printed on paper feed. FIGS. 5 and 6 are schematic diagrams showing changes in the edge spacing of the plate due to different plate cylinders. 1... Unwinding roller, 2... Paper feed, 3... Plate cylinder, 4
...impression cylinder, 5...take-up roller, 6, 6'...plate, 7
... Ink roller, 8 ... Ink roller, 9
... Ink tank, 10 ... Ink, 11 ... Printing part, 2
0... Drive motor, 21... Speed setter, 30... Feed speed detector, 31... Mark detector.

Claims

[Scope of Claim for Utility Model Registration] (1) A drive control device for a plate cylinder in a printing press that prints at predetermined intervals with a plate cylinder on continuously fed paper fed at a constant speed, which is attached to the plate cylinder. The plate cylinder is rotated at a rotational speed such that the circumferential speed of the printing surface matches the feed speed of the paper feed while the plate is in contact with the feed paper, and A drive control device for a plate cylinder of a printing press, comprising means for adjusting the rotation speed within each rotation of the plate cylinder so that the plate cylinder is rotationally driven at a rotation speed different from the rotation speed. . (2) The means includes a detector for detecting the feed speed of the paper feed and a speed setter for controlling the rotational speed of the plate cylinder, and the speed setter is arranged so that the plate is in contact with the paper feed. The rotational speed of the plate cylinder is controlled so that the circumferential speed matches the feeding speed of the fed paper detected by the detector, and the plate cylinder is controlled at the set rotational speed while the plate is not in contact with the fed paper. A drive control device for a plate cylinder of a printing press according to claim 1, which is configured to include a control circuit for controlling the printing press. (3) The control circuit includes a correction circuit for controlling the contact start position between the plate and the paper feed in controlling the rotational speed of the plate cylinder while it is not in contact with the paper feed. 2. A drive control device for a plate cylinder of a printing press according to item 2. (4) The drive control device for a plate cylinder of a printing press according to claim 2, wherein the speed setting device is constituted by an electronic control device or a microcomputer.