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Printing machine

A technology of printing machine and swing mechanism, which is applied in printing machine, printing, printing process and other directions, can solve the problems of laborious operation and inability to realize rainbow printing.

Inactive Publication Date: 2006-12-27
KOMORI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, when switching the ink adjustment to printing, it becomes necessary to actuate the movement again, thereby releasing the constraint of the lever
Thus, the operation is laborious
If the operator forgets to do this, there is a problem that the swinging motion of the inking roller does not occur, and rainbow printing cannot be achieved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0055] Figure 1a and 1b It is a schematic external configuration diagram of a double-sided multi-color offset printing machine and an enlarged diagram of a hydraulic cylinder, showing the first embodiment of the present invention. figure 2 It is an extracted and enlarged view of the ink tank part. image 3 It is a side sectional view showing a schematic structure of an essential part of a swing mechanism for an inking roller. Figure 4 is along image 3 The top view obtained from the arrowed line IV. Figure 5 is along Figure 4 The front view is obtained from the arrowed line V. Figure 6 yes image 3 Cutaway view of the basic parts. Figure 7 It is a schematic configuration diagram of the driving force transmission mechanism of the ink feeder. Figure 8 is a block diagram of the swing width control device. Figure 9 is a block diagram of the swing frequency control device. Figure 10 and 11 is a flowchart for swing width control during ink adjustment. Figure 12...

no. 2 example

[0115] Figure 16 is a block diagram of a swing width control device showing a second embodiment of the present invention. Figure 17 and 18 is a flowchart for swing width control during ink adjustment. Figure 19 and Figure 20 is a flowchart for wobble frequency control during printing. Figure 21 and 22 is a flowchart for wobble frequency control during printing.

[0116] The present embodiment is such an embodiment, wherein such as Figure 16 and Figures 17 to 22 Shown in the flow chart of, cancel the swing stop button 85 in the first embodiment, and when printing (see step P27), determine whether the set swing width data read in in step P6 is equal to or less than in step P8 The preset swing width data read in step P7 is used to determine whether the printing performed during the ink adjustment period is rainbow printing or normal printing. That is, like the first embodiment, if the set wobble width data is not larger than the preset wobble width data, it is dete...

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PUM

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Abstract

A printing press comprises an oscillating roller (25e) capable of rotating circumferentially and moving axially in a reciprocating manner, and does rainbow printing on a sheet (1), supplied from a feeder (10), in a printing unit (20). The printing press includes an oscillation width control device (80) and an oscillation frequency control device (90) for exercising control such that the oscillating roller (25e) moves axially in a reciprocating manner when printing is started in a state in which the axially moving motion of the oscillating roller (25e) is at a standstill. The printing press can automatically start the oscillating motion of the ink oscillating roller when printing is started from the state of the oscillating motion of the oscillating roller being stopped at the time of ink conditioning in rainbow printing, thereby decreasing the number of defective sheets and improving the ease of operation.

Description

[0001] Including specification, claims, drawings and abstract; the entire disclosure of Japanese Patent Application No. 2001-360416 filed on November 27, 2001 is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to a printing machine in which rainbow printing or normal printing is performed on paper fed from a paper feeding device in a printing unit. Background technique [0003] The inking unit of the printing press that supplies ink to the surface of the printing plate mounted on the printing plate cylinder has an ink fountain for storing ink and a set of ink rollers for evenly distributing the ink. Flow out of the fountain in different directions. Ink delivered to the end of the ink roller set is supplied to the plate cylinder via an ink form roller. [0004] An inking unit (hereinafter referred to as an inker) used to perform such an ink supply action rotates an ink roller and adjusts the ink before inking the plate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F33/00B41F31/15
CPCY10S101/38B41F31/15
Inventor 福嶋修二日下明広
Owner KOMORI CORP