CN2679674Y - Large sheet printed quality detector for paper money - Google Patents

Large sheet printed quality detector for paper money Download PDF

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Publication number
CN2679674Y
CN2679674Y CN 200420033029 CN200420033029U CN2679674Y CN 2679674 Y CN2679674 Y CN 2679674Y CN 200420033029 CN200420033029 CN 200420033029 CN 200420033029 U CN200420033029 U CN 200420033029U CN 2679674 Y CN2679674 Y CN 2679674Y
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CN
China
Prior art keywords
camera
group
utility
banknote
model
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Expired - Lifetime
Application number
CN 200420033029
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Chinese (zh)
Inventor
陈斌
蒋治全
吴俊�
钱裕沛
张绍兵
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China Banknote Printing and Minting Corp
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China Banknote Printing and Minting Corp
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Priority to CN 200420033029 priority Critical patent/CN2679674Y/en
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Publication of CN2679674Y publication Critical patent/CN2679674Y/en
Anticipated expiration legal-status Critical
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Abstract

The utility model relates to a large sheet printed quality detector for paper money, which mainly adopts a multi-area array CCD camera, a common cold light source and a synchronizer trigger and removes the problem the existing line array camera head imaging with unstable imaging and complicated structure, inconvenient mounting and adjusting and high cost. The area array CCD camera with stable imaging has stronger adaptability to paper money driving mode; the utility model not only installs on a transmission cylinder but also between the transmission link chains. The trigger of the utility model makes use of a turning synchronism disc inlaid multi-group of magnetic steels and installed the driving shaft of the transmission gear; synchronizing signals are detected by a hall proximity switch; the camera shot time is controlled, so a large sheet paper money and multi-small paper money can be controlled and shot accurately. The utility model has simple and reasonable structure, stable imaging quality, convenient mounting and adjusting and maintenance and low cost; the utility model is not only used for a large sheet printed quality detecting, but also applies to various bill numbers with value or detecting imaging quality in-line.

Description

Banknote is opened printing quality detecting device greatly
The utility model is mainly used in the banknote detection range and particularly is applied to banknote and opens greatly in the online detection of printing quality.
At present, a big banknote printing quality detects multiple mode, generally be to adopt a plurality of line array video cameras, as Chinese patent: CN1229338.5 and Chinese patent: the detecting device of describing among the CN2526837Y, these two patents all need to phoresy cylinder, shaft-position encoder and line array video camera, and just number is different in difference.Because every single line of line array video camera machine imaging picture is exposure separately and scanning, very high to the requirement that light source, mechanical vibration, paper wave, so the conditional request during to installation and shooting is very high, therefore application is restricted: have (1) imaging instability; (2) structure is numerous and diverse; (3) install and adjust trouble; Problem such as (4) cost is very high.
The purpose of this utility model is to overcome above-mentioned employing linear array CCD camera carries out bill and opens the technological deficiency that printing quality detects greatly, designs that a kind of image quality is stable, simple in structure, the pick-up unit of installation and easy to adjust, cheap Array CCD Camera photographic images.This device adopts multipath high-speed Array CCD Camera and ordinary cold light source, synchronizer trigger produces the signal triggering Array CCD Camera and takes, parallel on-line is caught big each Xiao Zhang's who opens of bill of high-speed motion progressive video, and the vision signal that this device produces is given extraneous successive image processor by oneself.
The purpose of this utility model is achieved through the following technical solutions: banknote is opened printing quality detecting device greatly and is comprised video camera, actuator, air intake device, trigger, light source etc.Above-mentioned gamma camera is one group of multichannel CCD gamma camera arranged side by side, trigger is a synchronizer trigger, light source is a cold light source, actuator phoresys the rotation axis that gear, a group phoresy chain, tricky tooth group and phoresy gear by of printing press and constitutes, and the air draught box adopts the rectangle negative pressure structure that has uniform small pores with the banknote approaching face.Thereby guarantee that imaging is stable, simplified structure is accurately taken numeral or picture information on the banknote.
Described ccd video camera is one a group 3-8 black and white face battle array multichannel ccd video camera arranged side by side, and each Array CCD Camera all is furnished with the dust-break slide; This dust-break slide is parallel to be embedded on the camera lens, is made by transparent glass sheet.Described light source is conventional fluorescent lamps or cold light source, has even, the cheap characteristics of light.
Described actuator is the parts that utilize dexterously on the printing machine, comprise one group phoresy chain, phoresy gear, tricky tooth group and phoresy the rotation axis of gear.Phoresy gear pulling chain and tricky tooth group during operation and drive the banknote operation.Described trigger is by forming with disk and one group of magnet steel, proximity Hall switch of phoresying synchronous rotation on the rotary gear axis.
One group of magnet steel on the described disk is embedded on the circumference of disk, and this group magnet steel comprises that two or more magnetic field intensitys are 300-5000 Gauss's circular or square magnet steel, and the center line of per two adjacent magnet steel and the angle between disc centre are 20 degree-50 degree.That phoresys the gear main shaft radially is fixed with proximity Hall switch, when phoresying the gear rotation, the disk that drives trigger in its rotating shaft rotates synchronously, the generation synchronizing signal triggered ccd video camera again after magnet steel on the disk triggered proximity Hall switch, and each each the Xiao Zhang's banknote image or the digital signal of opening are greatly taken in control.
Characteristics of the present utility model are to have adopted Array CCD Camera, ordinary cold light source and trigger, and imaging is stablized, installed and debugging convenience, cheap.
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is a structural representation of the present utility model
Fig. 2 is that D of the present utility model is to view
Fig. 3 is a upward view of the present utility model
1 is ccd video camera in the accompanying drawing, 2 is light source, 3 is the installing plate of ccd video camera, and 4 is air intake device, and 5 is the composite video cable, 6 is cable, 7 is fixed support, and 8 are dustproof slide, 9 banknotes that print when moving for printing machine, 10 for phoresying chain, 11 is the tricky tooth group of tricky printing bill, and 12 is the printing press fuselage, and 13 is proximity Hall switch, 14 is gib screw, 15 is disk, and 16 is magnet steel, and 17 for phoresying gear, 18 is the rotation axis that phoresys gear, "<---" be the direction of motion of press printing banknote.
Ccd video camera in the accompanying drawing (1), it can use in a plurality of connections arranged side by side, and each is directly taken in every road The zone of Xiao Zhang's banknote respective digital or image, the precision of images reach 0.25 millimeter of each pixel. Each videotapes The camera lens front end of machine is inlaid with the dust-break slide (8) of being made by the Special spectacles sheet glass.
Light source in the accompanying drawing (2) is fixed on the bottom surface of installing plate (3) by screw (14). For preventing long-time photograph Penetrate and cause the utility model overheated, adopt the cool white light source.
Be fixed with side by side multichannel ccd video camera (1) in the accompanying drawing on the installing plate of Array CCD Camera (3), The relative position that detects target according to each road is the relative position between the multichannel camera fixedly, camera can before and after Adjust, but the also upper and lower, left and right adjustment of installing plate integral body, and its adjustment is the hold-down screw position by both sides Add and regulate the slotted hole realization.
Air intake device in the accompanying drawing (4) has row's rectangle air draught box of above aperture and outer company by a plane Tracheae box vavuum pump consists of, and it is to be contained in the banknote back that is taken. The suction air volume size is regulated according to demand, with Guarantee the print money held stationary of high-speed motion. Hole diameter on general air draught box and the banknote approaching face is common Be the 1-2.5 millimeter, every row 20-100 hole, all the other each face closures, the corresponding back side of aperture has vavuum pump and inhales The connecting hole of tracheae is to guarantee being always negative pressure in the air draught box.
Composite video cable (5) is that the information that ccd video camera is taken is sent to extraneous subsequent figure in the accompanying drawing The picture processor is processed.
Cable in the accompanying drawing (6) comprises the triggering cable that triggers ccd video camera and to the ccd video camera power supply Cable. Trigger cable the triggering signal that proximity Hall switch (13) produces flowed to ccd video camera (1), Trigger ccd video camera and take numeral or the pictorial information of each Xiao Zhang's banknote respective regions of print money.
Fixed support in the accompanying drawing (7) is to make with metal material, is used for air intake device (4) and CCD are taken the photograph The installing plate of camera (3) is separately fixed on the printing press fuselage (12).
Print money in the accompanying drawing (9) is generally 5*7-5*8 Xiao Zhang's banknote and forms a big banknote of opening.
Drive tricky tooth group (11) when phoresying chain (10) operation in the accompanying drawing, pulling print money (9) motion is taken every banknote relevant range numeral or image information for ccd video camera (1).
Tricky tooth group (11) in the accompanying drawing, the rotation axis (18) that phoresys chain (10), phoresys gear (17) and phoresy gear all are that itself has on the printing machine, and the utility model utilizes it to form actuator dexterously.Drive during the printing machine motion and phoresy gear (17) running, phoresy gear (17) drive and phoresy chain (10) running.Phoresy chain (10) and spur tricky tooth group (11) running of tricky print money (9) again.The disk of trigger is installed on the rotation axis (18) that phoresys gear, with phoresying gear (17) run-in synchronism.
Proximity Hall switch in the accompanying drawing (13) is installed in the radial direction of phoresying the chain main shaft, when disk (15) rotates with the rotation axis that phoresys gear (17) (18), its upper magnetic steel (16) rotates near proximity Hall switch (13) with disk (15), produce trigger pip and send ccd video camera (1) to, trigger ccd video camera (1) the Xiao Zhang's image or the numeral of print money (9) are taken by cable (6).
Gib screw in the accompanying drawing (14) is fixed on the printing machine after ccd video camera (1) being fixed on the installing plate (3) of ccd video camera again.
Disk in the accompanying drawing (15) is the aluminium disks of hollow, is installed on the main shaft (18) that chain phoresys gear, and being inlaid with 2-8 magnetic field intensity on the circumference is 300-5000 Gauss's circular or square magnet steel (16).The angle at per two magnet steel center lines and disk (15) center is the 20-50 degree.
Embodiment:
Fig. 1,2,3 is seen in enforcement of the present utility model, when banknote printing press (12) moves, actuator phoresy the drive of phoresying gear (17) running down that chain (10) drives when being printed machine run, phoresy the running of chain (10) pulling tricky tooth group (11) random device.Tricky tooth group (11) tricky the arrow direction of print money (9) along accompanying drawing 1; Be installed in the disk (15) that phoresys on gear (10) main shaft (18) simultaneously and make the magnet steel (16) on it successively trigger proximity Hall switch (13) back generation signal with operation do synchronous operation, this signal sends numeral or the image information that ccd video camera (1) triggered and took each Xiao Zhang of print money to by cable (6).Required light source is provided by the light source (2) of the ccd video camera prism on the installing plate of installing (3) during shooting.During the installation of magnet steel (16) on disk (15) in the center line of per two magnet steel and the disk (15) in the heart angle be generally 20 degree-50 degree, to guarantee just in time corresponding each Xiao Zhang's banknote numeral or image; Realized ccd video camera (1) to big real-time shooting of opening multichannel Xiao Zhang's bill video image of print money (9), shooting gained signal sends extraneous successive image processor processing to via composite video cable (5).
The utility model is owing to adopt Array CCD Camera to detect, need and shortcoming such as scrambler strict synchronism thereby overcome to detect, make that it is simple and reasonable, it is very convenient to install, imaging is stable, accuracy of detection is high relatively and cost is low with the linear array CCD camera structure.Not only can be widely used in banknote and open the printing quality detection greatly, also can be used for the online detection of printing quality of various valuable bills numbers or image.

Claims (5)

1, a kind of banknote of being made up of ccd video camera, air intake device, actuator, light source and trigger etc. is opened printing quality detecting device greatly, it is characterized in that described ccd video camera is one group of Array CCD Camera, and pick-up lens is provided with the dust-break slide; Described actuator is made up of phoresying chain, phoresy gear on the printing machine, tricky tooth group and the rotation axis that phoresys gear; Described trigger is a synchronizer trigger, and it is formed by phoresying on the gearing shaft disk that rotates synchronously and one group of magnet steel and proximity Hall switch; Described light source is a cold light source.
2, open printing quality detecting device greatly according to the described banknote of claim 1, it is characterized in that 3-8 the black and white Array CCD Camera that described one group of ccd video camera is single or multiple connections arranged side by side.
3, banknote according to claim 1 is opened printing quality detecting device greatly, it is characterized in that described synchronizer trigger with the circumference that phoresys the disk that gear rotates synchronously on be inlaid with one group of magnet steel, described one group of magnet steel comprises that 2-8 magnetic field intensity is 300-5000 Gauss's circular or square magnet steel, and the center line of per two magnet steel and the angle between disc centre are 20 degree-50 degree.
4, banknote according to claim 1 is opened printing quality detecting device greatly, it is characterized in that the described proximity Hall switch that radially being fixed with of gear main shaft detected synchronizing signal and control shooting time that phoresys.
5, banknote according to claim 1 is opened printing quality detecting device greatly, it is characterized in that every Array CCD Camera is furnished with dust-break slide and parallel being embedded on the camera lens, and described dust-break slide is made by transparent glass sheet.
CN 200420033029 2004-03-01 2004-03-01 Large sheet printed quality detector for paper money Expired - Lifetime CN2679674Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420033029 CN2679674Y (en) 2004-03-01 2004-03-01 Large sheet printed quality detector for paper money

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420033029 CN2679674Y (en) 2004-03-01 2004-03-01 Large sheet printed quality detector for paper money

Publications (1)

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CN2679674Y true CN2679674Y (en) 2005-02-16

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101792982A (en) * 2010-03-17 2010-08-04 保定钞票纸业有限公司 Code spraying system
CN101943666A (en) * 2010-08-12 2011-01-12 中国印钞造币总公司 Novel presswork sample conformity evaluation method and corresponding device
CN102136165A (en) * 2010-12-23 2011-07-27 西安印钞有限公司 System and method for detecting front and back face qualities of imprinted Renminbi (RMB) large-page product
CN102157024A (en) * 2011-05-03 2011-08-17 西安印钞有限公司 System and method for on-line secondary detection checking of checking data of large-sheet checking machine
CN102236925A (en) * 2011-05-03 2011-11-09 西安印钞有限公司 System and method for offline secondary detection and checking of machine detected data of large-piece checker
CN103940827A (en) * 2014-05-05 2014-07-23 石家庄印钞有限公司 Double-sided printed matter front offset printing quality detection system
CN104713483A (en) * 2015-03-30 2015-06-17 昆山钞票纸业有限公司 Detection method and device for photosensitive fibers embedded in anti-counterfeit paper

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101792982A (en) * 2010-03-17 2010-08-04 保定钞票纸业有限公司 Code spraying system
CN101943666A (en) * 2010-08-12 2011-01-12 中国印钞造币总公司 Novel presswork sample conformity evaluation method and corresponding device
CN102136165A (en) * 2010-12-23 2011-07-27 西安印钞有限公司 System and method for detecting front and back face qualities of imprinted Renminbi (RMB) large-page product
CN102157024A (en) * 2011-05-03 2011-08-17 西安印钞有限公司 System and method for on-line secondary detection checking of checking data of large-sheet checking machine
CN102236925A (en) * 2011-05-03 2011-11-09 西安印钞有限公司 System and method for offline secondary detection and checking of machine detected data of large-piece checker
CN102157024B (en) * 2011-05-03 2013-01-09 西安印钞有限公司 System and method for on-line secondary detection checking of checking data of large-sheet checking machine
CN102236925B (en) * 2011-05-03 2013-08-14 西安印钞有限公司 System and method for offline secondary detection and checking of machine detected data of large-piece checker
CN103940827A (en) * 2014-05-05 2014-07-23 石家庄印钞有限公司 Double-sided printed matter front offset printing quality detection system
CN103940827B (en) * 2014-05-05 2016-09-07 石家庄印钞有限公司 Double-sided printed matter front offset printing quality detection system
CN104713483A (en) * 2015-03-30 2015-06-17 昆山钞票纸业有限公司 Detection method and device for photosensitive fibers embedded in anti-counterfeit paper
CN104713483B (en) * 2015-03-30 2017-09-12 昆山钞票纸业有限公司 Cheque paper embeds the detection method and device of photosensitive fiber

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20140301

Granted publication date: 20050216