System and method for detecting front and back face qualities of imprinted Renminbi (RMB) large-page product

A detection system and product technology, applied in coin inspection, measuring devices, handling coins or valuable banknotes, etc., can solve the problems of insufficient machine inspection capabilities of small-denomination products, inability to accurately locate small openings of waste products, etc., to reduce paper fluctuations, Quality and safety, the effect of ensuring stability

Active Publication Date: 2011-07-27
XIAN BANKNOTE PRINTING +1
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Problems solved by technology

[0003] In order to solve the technical problems that the existing RMB large-sheet products cannot accurately locate the small openings of waste products, and the machine inspection capability o

Method used

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  • System and method for detecting front and back face qualities of imprinted Renminbi (RMB) large-page product
  • System and method for detecting front and back face qualities of imprinted Renminbi (RMB) large-page product
  • System and method for detecting front and back face qualities of imprinted Renminbi (RMB) large-page product

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Embodiment Construction

[0027] The detection system of the present invention includes a transmission device, a flattening device and a detection device; the transmission device includes a detection roller 11 connected to the paper output sprocket 10 of the printer, and two gripper row sprockets 12 connected to the detection roller 11 , the transmission chain 18 arranged between the two gripper teeth row sprockets, the plurality of evenly distributed gripper teeth rows 15 arranged on the transmission chain; A piece of product is dragged from the flattening device; the flattening device includes a suction plate 4 arranged under the two gripper row sprockets 12, and two long rows of suction holes 3 arranged on the suction plate and evenly distributed horizontally 1. The air blowing device 14 arranged above the air suction plate and arranged horizontally; the air suction hole 3 communicates with the air pump 6, and the air blowing device can blow air on the air suction plate; the detection device includes...

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Abstract

The invention relates to a system and method for detecting front and back face qualities of an imprinted Renminbi (RMB) large-page product. The method comprises the following steps of: arranging a front face detecting unit and a back face detecting unit on a paper collecting part of an imprinter respectively; and transmitting a pulse signal by using an encoder which is synchronous to a system detection drum to trigger a colored linear array CCD (Charge Coupled Device) camera to acquire an image, wherein the reduction in the detection capability of the system, caused by paper fluctuation, can be reduced to the maximum extent by using a flattening device. By adopting the system and method, products with severe quality problems caused by an imprinting procedure per se and a series of products with continuous remarkable quality problems (such as paper holes, break angles, oil stains, number strike-through and the like) can be intercepted, and products with remarkable and severe quality problems in an offset printing procedure and a gravure procedure can be controlled according to a detection result, better technical supplements are provided for the conventional running computer retrieval process, and the front and back face qualities of the important imprinted RMB product can be checked, scraps can be positioned accurately, and the delivery quality safety of the product is ensured.

Description

technical field [0001] The invention relates to a RMB printing quality detection system and detection method. technical background [0002] The printing quality of the front and back of the existing RMB large-sheet products needs to be inspected after printing, but the existing code printing process only uses local area quality inspection, which cannot realize the quality inspection of the full face, and at the same time, it cannot be single-issued for the detected quality defects. position. If the single-opening and number-based positioning is realized on the existing basis, it is necessary to separately install a large-sheet coding device after the printing machine and perform number conversion to locate defective products, otherwise the work of accurately locating the small openings of waste products cannot be completed. . However, the recognition speed of the large-sheet inkjet coding device cannot meet the speed requirements of the printer, and its recognition accurac...

Claims

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Application Information

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IPC IPC(8): G07D5/00G01N21/898
Inventor 李政张民考赵立军谭江燕赵克强成敬民李小海李文峰张继武
Owner XIAN BANKNOTE PRINTING
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