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Web detection device of printing press

A detection equipment, web technology, applied in printing presses, general parts of printing machinery, rotary printing presses, etc., can solve problems such as wrong detection of paper breakage

Inactive Publication Date: 2007-10-24
KOMORI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, when a paper break situation is about to be detected, although the allowable range is reduced, a paper break situation that does not actually occur may be erroneously detected

Method used

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  • Web detection device of printing press
  • Web detection device of printing press
  • Web detection device of printing press

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Hereinafter, a web detecting device of a printing machine according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic configuration diagram of a web rotary printing machine including a web detection device of the printing machine according to an embodiment of the present invention. Fig. 2 is a schematic configuration diagram of an unloading device. FIG. 3 is a schematic configuration diagram of a web detection device of a printing press according to an embodiment of the present invention.

[0023] Referring to FIG. 1, in a web rotary printing machine 1, a printing unit 2, a dryer (dryer) are sequentially arranged in the order of the upstream side according to the transport direction of a web (continuous paper) W to be transported. device) 3, and cooling equipment (cooling device) 4. Furthermore, an unloading device (unloading device) 5 is provided between the printing unit 2 and the dryer 3 . Also,...

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PUM

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Abstract

Provided is a web detection device of a printing press capable of promptly detecting paper breakage, the web detection device being provided with: a printing unit which prints on a web being transported; a dryer, which is provided on the downstream side in the web transporting direction of the printing unit, and which dries the printed web; a chill roller, which is provided on the downstream side in the web transporting direction of the dryer, and around which the dried web is wound; and a detection device, which is provided in a vicinity of the chill roller, and which detects that the position in a web surface crossing direction of a web having been cut exceeds a predetermined allowable range.

Description

technical field [0001] The invention relates to a web detection device of a printing press, which detects a web break in a conveyed web. Background technique [0002] Generally, in a printing press such as a web rotary printing press, printing is performed while a web (continuous sheet) is conveyed continuously. Therefore, due to changes in the tension of the web or due to other problems, it is common for the paper to break during the printing process. In the event of such a sheet break, the severed web becomes loose and is then wound several times around the circumferential surface of a blanket cylinder or plate cylinder of a printing unit, or of a roller of an inking unit. This condition with the severed web wrapped around it can seriously damage not only the blanket cylinder or roller, but the printing press itself. For this reason, conventional printing presses are equipped with a web detection device to prevent the cut web from wrapping around blanket cylinders or rol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/18B65H43/04
CPCB41F13/02B41F23/0403B41F23/0479B41F33/18B65H26/025B65H2801/21
Inventor 铃木资康宮崎胜治
Owner KOMORI CORP