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Turnover paper-feeding mechanism, small paper-sheet detecting machine and presswork detecting method

A printed matter and paper feeding technology, which is applied in the direction of printing, printing machines, general parts of printing machinery, etc., can solve the problems of poor surface wear resistance, scratches and scratches on the printing surface, so as to ensure the accuracy of detection and avoid false detection , Eliminate the effect of scratches

Inactive Publication Date: 2012-10-24
BEIJING DAHENG IMAGE VISION
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Problems solved by technology

Although the existing small sheet inspection machine can realize the purpose of surface quality inspection of printed matter, for a printed matter, since the printed matter is fed with the printing side facing up, during the paper feeding process, the The printed matter stack stacked on the printed matter is easy to scratch its printing surface, and when outputting from the paper outlet of the paper feeding knife 11, the paper feeding knife 11 is also easy to scratch the printing surface of the printed matter, causing scrapping of qualified printed matter and False detections, especially for prints with poor surface abrasion resistance

Method used

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  • Turnover paper-feeding mechanism, small paper-sheet detecting machine and presswork detecting method
  • Turnover paper-feeding mechanism, small paper-sheet detecting machine and presswork detecting method
  • Turnover paper-feeding mechanism, small paper-sheet detecting machine and presswork detecting method

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Embodiment Construction

[0016] Such as figure 2 and image 3 As shown, the present invention proposes a reversing paper feeding mechanism, which includes a plurality of reversing guide plate members 30, which are correspondingly arranged side by side in parallel between the plurality of reversing guide plate members 30, and between two adjacent reversing guide plate members 30 There is a set distance L between them, wherein: each of the turning guide plate members 30 includes an upper guide plate 33 and a lower guide plate 31, and a curved set gap 39 is formed between the upper and lower guide plates 33, 31. The two ends of the gap 39 are respectively an overturning input port and an overturning output port. The upper guide plate 33 is provided with an upper conveyor belt mechanism 34, and the lower guide plate 31 is provided with a lower conveyor belt mechanism 32. The transmission clamping surface of the lower conveyor belt mechanism 32 is in contact with the The transmission clamping surfaces of...

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Abstract

The invention discloses a turnover paper-feeding mechanism, a small paper-sheet detecting machine and a presswork detecting method. The small paper-sheet detecting machine comprises a paper-feeding mechanism, a turnover paper-feeding mechanism and a detecting mechanism, a detected-product outlet of the paper-feeding mechanism and a rotating inlet of the turnover paper-feeding mechanism are correspondingly arranged, and a turnover outlet of the turnover paper-feeding mechanism and a detected-product inlet of the detecting mechanism are arranged correspondingly. The detecting method for the presswork includes steps of placing to-be-detected presswork stacked up and down at a presswork-placing position on the paper-feeding mechanism in a printed-face downwards manner, and then sending out the presswork piece by piece from the paper-feeding mechanism, turning the printed face of the presswork downwards to upwards after the presswork enters the turnover paper-feeding mechanism, and then outputting the presswork to the detecting mechanism for performing a surface quality detecting. By the aid of the turnover paper-feeding mechanism, scratch to the printed faces of the presswork can be relieved or eliminated before the presswork is detected, so that eligible presswork cannot be damaged during the detecting process, detecting accuracy is guaranteed and false detection is avoided.

Description

technical field [0001] The invention relates to a reverse paper-feeding mechanism, a small sheet inspection machine realized based on the reverse paper-feed mechanism, and a printed matter detection method realized based on the small sheet inspection machine, belonging to the field of printed matter detection. Background technique [0002] Currently, if figure 1 As shown, the existing small sheet inspection machine includes a paper feeding mechanism, a deviation correction mechanism and a detection mechanism. The paper feeding mechanism includes a paper feeding conveyor belt mechanism 13 and a paper feeding knife 11 and a paper support plate 12 correspondingly arranged above it. There is a gap between the paper output end of the paper feeding knife 11 and the upper conveyor belt of the paper feeding conveyor belt mechanism 13. The gap is It is the paper outlet, and the size of the paper outlet is the thickness of a printed matter. The deviation-correcting mechanism include...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H5/02B65H5/38B41F33/00
Inventor 马志兴蒲爱民潘津陈绍义
Owner BEIJING DAHENG IMAGE VISION
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