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Printing quality control method and apparatus for printing press

A printing quality and management method technology, applied to printing machines, general parts of printing machinery, printing, etc., can solve problems such as adjustment errors, increased burden on operators, and bad printed parts, so as to reduce the burden and reduce bad printed parts , the effect of high-precision management

Inactive Publication Date: 2008-12-24
KOMORI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As mentioned above, the operator confirms the concentration of the ink (ink film thickness) by visual inspection, or by touching the embossed part with his hand. Since the ink supply amount and printing pressure are adjusted according to personal subjective judgment, the operation is increased. The burden of personnel, and there will be problems such as adjustment errors and bad printing

Method used

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  • Printing quality control method and apparatus for printing press
  • Printing quality control method and apparatus for printing press
  • Printing quality control method and apparatus for printing press

Examples

Experimental program
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Embodiment 1

[0106] Fig. 1 (a) and Fig. 1 (b) the control block diagram of embossing amount and ink supply amount control device shown in embodiment 1 of the present invention, Fig. 2 is the control block diagram of ink fountain roller control device, Fig. 3 is ink fountain switch control device The control block diagram, Figure 4(a) ~ Figure 4(c) It is the action flow chart of the embossing amount and ink supply amount control device, Figure 5(a) ~ Figure 5(e) It is the action flow chart of the embossing amount and ink supply amount control device, Figure 6(a) ~ Figure 6(c) It is the action flow chart of the embossing amount and ink supply amount control device, Figure 7 It is the action flowchart of the ink fountain switch control device, Figure 8 It is the flow chart of the action of the ink fountain roller control device, and Figure 9 is a brief structural diagram of the same Orlov gravure printing machine, Figure 10 is a brief structural diagram of the ink device, Figure 11 ...

Embodiment 2

[0223] Figure 15(a) and Figure 15(b) are the control block diagrams of the embossing amount and ink supply control device shown in Embodiment 2 of the present invention, Figure 16 is the control block diagram of the ink fountain roller control device, and Figure 17 is the ink fountain switch control The control block diagram of the device, Figure 18(a) ~ Figure 18(c) It is the action flow chart of the embossing amount and ink supply amount control device, Figure 19(a) ~ Figure 19(e) It is the action flow chart of the embossing amount and ink supply amount control device, Figure 20(a) ~ Figure 20(d) It is the action flow chart of the embossing amount and ink supply amount control device, Figure 21 It is the action flowchart of the ink fountain switch control device, Figure 22 Fig. 23 is an explanatory diagram of a color code.

[0224] In this embodiment, the opening degree of the ink fountain switch 17d (17d-1~17d-n) can be automatically adjusted by driving and controll...

Embodiment 3

[0336] Fig. 24 (a) and Fig. 24 (b) are the control block diagrams of the ink supply amount control device shown in Embodiment 3 of the present invention, Fig. 25 is the control block diagram of the ink fountain roller control device, Fig. 26 is the control block diagram of the ink fountain switch control device , Fig. 27 (a) and Fig. 27 (b) are the action flowchart of ink supply control device, Figure 28(a) ~ Figure 28(d) is the flow chart of the action of the ink supply volume control device, Figure 29 is the flow chart of the action of the ink supply volume control device, Figure 30 It is the action flowchart of the ink fountain switch control device, Figure 31 It is the action flow chart of the ink fountain roller control device, Figure 32 It is a brief structural diagram of a letterpress printing machine.

[0337] In this embodiment, the present invention is applied to a letterpress printing machine instead of the Orlov (mode) gravure printing machine in Embodiment...

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Abstract

A printing quality control method and apparatus are disclosed for a printing press including an ink fountain (17c) for storing ink, and a motor (108) for driving an ink fountain roller which adjusts the amount of ink supplied from the ink fountain. According to the method and apparatus, a face side distance measuring instrument (74) measures the ink film thickness of a printing product of printing by the printing press, and control means controls the motor for driving the ink fountain roller based on the ink film thickness measured by measuring the ink film thickness of printed parts of the printing press.

Description

technical field [0001] The invention relates to a printing quality management method and device for a gravure printing machine and a letterpress printing machine. Background technique [0002] In general, gravure printing is mostly used when it is desired to give the ink a thick effect, which is probably because it feels high-end to the touch in this case. In this type of gravure printing, a relief effect can be obtained by using high printing pressure, or by depositing thick ink, it is possible to give a printed matter a concave-convex feeling. In addition, the thickness of the ink can also be expressed by means of the thickness of the stacked ink. [0003] In order to check the above-mentioned unevenness, it is conceivable to use a conventional ink density meter. However, in gravure printing, due to the thickness of the ink film, even if the concentration of dark colors such as black is measured using a densitometer, it almost always shows the maximum value, and the actu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/10
CPCB41F31/045B41F33/0045
Inventor 熊谷周洋沼内裕光日下明广
Owner KOMORI CORP