JPS6241539U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a schematic sectional view of a printing press that is an embodiment of this invention, Fig. 2 is a schematic diagram showing the control system used in the printing press, Fig. 3 is a configuration diagram of the inking unit, and Fig. 4 Figure 5 is a configuration diagram of the ink form roller reversal prevention mechanism, Figure 5 is a configuration diagram of the main parts of the inking unit, Figure 6 is a partial rear view of the printing press body before the inking unit is installed, and Figure 7 is Figure 6. ―
Line sectional view, Figure 8 is a diagram showing a mechanism in which the plate cylinder support shaft is eccentrically rotatably supported by the printing press body, Figure 9
The figure is a plan view showing the area centered on the rail receiver of the main body of the printing press, Figure 10 is a diagram showing the drive mechanism of the inking unit take-off cylinder drive lever, and Figure 11 is a diagram showing the installed state of the inking unit. 12 is a diagram explaining the steady printing operation of the inking unit, FIG. 13 is a diagram explaining the pushing operation of the doctor blade, and FIG. 14 is a diagram showing the operating state of the limit switch for origin detection and the limit switch for pushing limit detection. A diagram showing the relationship with the pushing state of the blade, Fig. 15 is a flowchart showing the operation to control the pushing amount of the doctor blade performed when the inking unit is installed, and Fig. 16 shows the case when a pushing command is given by the operator. FIG. 17 is a flowchart showing the operation to control the pushing amount of the doctor blade performed when the operator gives a pullback command, and FIG. Diagram showing the deformed state of the ink form roller, No. 19
The figure is a characteristic diagram showing the relationship between the number of rotations of the ink forming roller, the amount of blade pushing, and the ink film thickness. 301... Plate drive gear, 710... Ink forming roller, 710a... Roller shaft, 714... Doctor blade, 717... Inking gear, 718
...Reverse prevention mechanism, 720...Rawl wheel, 724...
Detent member, 724a...Claw portion, 726...
Spring, 747...Ink reservoir space.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An ink device in which an ink scraping device and an ink reservoir are provided on an ink applicator roller, and ink is applied to the printing plate by rotating the ink applicator roller in the forward direction. In the apparatus, an inking gear meshed with a drive gear and rotationally driven is rotatably attached to the roller shaft of the ink form roller, and the rotation of the inking gear in the forward direction is transmitted to the ink form roller, and the rotation in the reverse direction is transmitted to the ink form roller. An ink form roller reversal prevention mechanism characterized by having a one-way rotation transmission mechanism that prevents rotation transmission. (2) The one-way rotation transmission mechanism includes a ratchet wheel fixed to the ink form roller shaft, a pawl rotatably attached to the inking gear side, and the pawl is engaged with the ratchet wheel. An inking roller reversal prevention mechanism in an inking device according to claim (1) of the registered utility model, which comprises a biased spring.