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Feed cut-off protection method for web-fed concave format printing machine

A technology of gravure printing machines and printing machines, which is applied to the general parts of printing machinery, printing machines, printing, etc. It can solve the problems of waste of printing materials, increase cleaning time, and reduce productivity, so as to reduce maintenance time, increase speed, find quick results

Active Publication Date: 2017-07-07
NINGBO XINDA PRINTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional roll-type gravure printing machine comprises unwinding mechanism, printing mechanism, winding mechanism and main control system, is provided with tension sensor between described unwinding mechanism and printing mechanism and between printing mechanism and winding mechanism, and described tension The sensor collects the tension value on the printing paper and transmits it to the main control system. The main control system can send acceleration or deceleration instructions to the driving device of the printing press according to the change of the tension value. Shutdown, manual discovery has a lag, which is easy to cause waste of printing materials. At the same time, the broken material is involved in the printing mechanism, which will cause ink sticking of the unit, increase cleaning time, and reduce productivity.

Method used

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  • Feed cut-off protection method for web-fed concave format printing machine

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Embodiment Construction

[0018] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as figure 1 said,

[0020] A method for material breakage protection of a roll-type gravure printing machine, the roll-type gravure printing machine includes an unwinding mechanism 1, a printing mechanism 2, a winding mechanism 3, a driving device 4 and a main control system 5, the A tension sensor 6 is provided between the unwinding mechanism 1 and the printing mechanism 2 and between the printing mechanism 2 and the winding mechanism 3. The tension sensor 6 collects the tension value on the printing paper and transmits it to the main control system 5. The method Include the following steps,

[0021] a. Start the printing machine, the main control system 5 shields the data of the tension sensor 6, so as to avoid the abnormal shutdown of the printing machine caused by the abnormal tension value at the beginning of the startup;

[0022] b. ...

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Abstract

The invention discloses a feed cut-off protection method for a web-fed concave format printing machine. The web-fed concave format printing machine comprises an unwinding mechanism (1), a printing mechanism (2), a winding mechanism (3), a driving device (4) and a main control system (5), wherein a tension sensor (6) is arranged between the unwinding mechanism (1) and the printing mechanism (2) as well as between the printing mechanism (2) and the winding mechanism (3); the tension sensors (6) can collect tension values of printing paper and further transmit the tension values to the main control system (5). According to the feed cut-off protection method for the web-fed concave format printing machine, once feed cut-off occurs, the main control system performs automatic judgment and shutdown control.

Description

technical field [0001] The invention relates to the technical field of printing machinery, and relates to a method for protecting a roll-type gravure printing machine from material breakage. Background technique [0002] Gravure printing products have the advantages of thick ink layer, rich layers, strong three-dimensional effect, and good printing quality. They are mainly used for printing exquisite color pictures, trademarks, decorations, securities, and color newspapers. Conventional roll-type gravure printing machine comprises unwinding mechanism, printing mechanism, winding mechanism and main control system, is provided with tension sensor between described unwinding mechanism and printing mechanism and between printing mechanism and winding mechanism, and described tension The sensor collects the tension value on the printing paper and transmits it to the main control system. The main control system can send acceleration or deceleration instructions to the driving devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/18B41F33/14
CPCB41F33/14B41F33/18
Inventor 陈信君秦涨宏郑武
Owner NINGBO XINDA PRINTING MACHINERY