CN101825436B - Paper three-dimension deformation-quantity detection system - Google Patents
Paper three-dimension deformation-quantity detection system Download PDFInfo
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- CN101825436B CN101825436B CN2010101762752A CN201010176275A CN101825436B CN 101825436 B CN101825436 B CN 101825436B CN 2010101762752 A CN2010101762752 A CN 2010101762752A CN 201010176275 A CN201010176275 A CN 201010176275A CN 101825436 B CN101825436 B CN 101825436B
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Abstract
The invention relates to a paper three-dimension deformation-quantity detection system, which comprises a stretching device, a width detection device, a thickness detection device, a controller and a display device, wherein the stretching device is used for stretching papers and for measuring the quantized data of the paper during the deformation process such as tension variation, corresponding elastic modulus and the like; the width detection device is arranged above the stretching device and is used for measuring the width and length variation of the paper during the deformation process; the thickness detection device is arranged at one side of the stretching device and is used for measuring the thickness variation of the paper during the deformation process; and the controller is used for controlling the movement of the stretching device, the width detection device and the thickness detection device, for receiving the measurement results of each device and for transmitting the measurement results to the display device, and the display device is used for receiving and displaying the measurement results. The paper three-dimension deformation-quantity detection system realizes the measurement of the paper three-dimension deformation quantity, has high measuring precision, favors the improvement of the paper quality, and ensures the printing quality. In addition, the detection system also has the advantages of simple structure and convenient installation and application.
Description
Technical field
The present invention relates to the note detection field, relate in particular to the high paper three-dimension deformation-quantity detection system of a kind of accuracy of detection.
Background technology
The offset press that paper printing uses is except print system, also are furnished with accessories such as paper tension regulating system and anti-paper wrapping device, in the paper feed process, every part of offset press all has the Tension Control unit, and the offset press structure is tight, stability is strong, and purpose is that distortion is accurately also reduced in the position when guaranteeing the paper paper feed.This shows that paper distortion is very big to the influence of alignment, chromatography accurately is the common quality requirementss of all printed matters, it also is the precondition that mixes up mass colour, for paper production producer, paper distortion is little, guarantees that chromatography accurately is the quality that paper is starved of attention.
Based on attention to the chromatography accuracy, when note detection, quantize data except being concerned about the tension variation in the paper distortion process and measuring corresponding elastic modulus etc., also need to measure paper in deformation process direction in length and breadth and the variation of paper sheet thickness, to improve accuracy of detection, further in the process of paper production, solve the excessive problem of paper distortion, reduce the difficulty and the cost of printing.
At present, the major equipment of industrial measurement paper tension and distortion adopts vertical paper tensile strength meter, and this type of testing machine is generally the monofilament vertical structure, because of the less easy placement of its floor area is used widely.But this kind testing machine can only be measured the distortion of yardage and width, and can't measure for thickness deformation.The general paper thicknessmeter that adopts is measured paper thickness in the prior art, and still, the paper thicknessmeter needs both sides to compress measurement when measuring, and paper can't compress in drawing process.Therefore, prior art can't be implemented in the paper distortion process paper thickness changed and measure, and exists the paper distortion measuring accuracy low, can not satisfy the technical matters of chromatography requirement.
Summary of the invention
The object of the present invention is to provide a kind of paper three-dimension deformation-quantity detection system, measure to solve can't change paper thickness in the paper distortion process in the prior art, the paper distortion measuring accuracy is low, can not satisfy the technical matters of chromatography requirement.
For achieving the above object, the invention provides a kind of paper three-dimension deformation-quantity detection system, be used for measuring the three-dimension deformation-quantity of paper distortion process, comprising: stretching device, width detecting, thickness detection apparatus, controller and display device, wherein,
Stretching device is used for paper is stretched, and measures the tension variation of paper in deformation process and corresponding elastic modulus etc. and quantizes data;
Width detecting is arranged on the stretching device top, is used for measuring width and the length variations amount of paper in deformation process;
Thickness detection apparatus is arranged on stretching device one side, is used for measuring the amounts of thickness variation of paper in deformation process;
Controller is connected with stretching device, width detecting and thickness detection apparatus respectively, is used for the motion of control stretching device, width detecting and thickness detection apparatus, receives the measurement result of each device, and measurement result is sent to display device;
Display device is connected with controller, is used for receiving and showing measurement result.
According to the described paper three-dimension deformation-quantity detection system of preferred embodiment of the present invention, its width detecting further comprises: frame, stepper motor, shaft coupling, width camera, width microscope and annular light source, frame is provided with stepper motor holder, ball wire bar pair and camera holder, the stepper motor holder is arranged on upper rack, and stepper motor is arranged on the stepper motor holder and is connected to controller; Ball wire bar pair is arranged on the frame inboard, and camera holder one end is connected with ball wire bar pair; Shaft coupling is connected with stepper motor, and its axle is arranged in frame and is connected by screw rod with the camera holder, width camera, width microscope and annular light source are connected successively and place stretching device top, and the width camera is connected with controller, and the width microscope is connected to the camera holder other end.
According to the described paper three-dimension deformation-quantity detection system of preferred embodiment of the present invention, its thickness detection apparatus further comprises: frame, stepper motor, shaft coupling, thickness camera, thickness microscope and annular light source, frame is provided with stepper motor holder, ball wire bar pair and camera holder, the stepper motor holder is arranged on upper rack, and stepper motor is arranged on the stepper motor holder and is connected to controller; Ball wire bar pair is arranged on the frame inboard, and camera holder one end is connected with ball wire bar pair; Shaft coupling is connected with stepper motor, and its axle is arranged in frame and is connected by screw rod with the camera holder, thickness camera, thickness microscope and annular light source are connected successively and place stretching device one side, and the thickness camera is connected with controller, and the thickness microscope is connected to the camera holder other end.
According to the described paper three-dimension deformation-quantity detection system of preferred embodiment of the present invention, its width microscope adopts 0.7 times-4.5 power microscope head.
According to the described paper three-dimension deformation-quantity detection system of preferred embodiment of the present invention, its thickness microscope adopts 0.63 * 3.5 times of-5 * 3.5 times of continuous zoom microlens.
According to the described paper three-dimension deformation-quantity detection system of preferred embodiment of the present invention, the pixel value of its width camera and thickness camera is 3,000,000 pixels.
According to the described paper three-dimension deformation-quantity detection system of preferred embodiment of the present invention, its stepper motor is 57 serial two-phase hybrid stepping motors, and its minimum step pitch is 1.8/16 degree.
According to the described paper three-dimension deformation-quantity detection system of preferred embodiment of the present invention, its display device is a LCD.
According to the described paper three-dimension deformation-quantity detection system of preferred embodiment of the present invention, its controller is connected with host computer, receives the control signal from host computer.
Paper three-dimension deformation-quantity detection system of the present invention is simple in structure, and is easy for installation.This system can detect length deformation, width deformation and the thickness deformation of paper in drawing process simultaneously.And it detects Deformation of Paper by camera, and the enlargement factor that only need change microlens just can realize the adjustment of measuring accuracy.Device adopts the video camera and the 5X3.5 enlarging lens doubly of 3,000,000 pixels, and accuracy of detection can reach 0.2um, the measuring accuracy height.Therefore, the present invention has realized in the paper distortion process measurement to the three-dimension deformation-quantity of paper, and the measuring accuracy height, has improved accuracy of detection, help in the process of paper production, to solve the excessive problem of paper distortion, effectively guarantee the chromatography quality of paper in printing process.In addition, this system can also realize continuous focusing, and it configures the Stepping Motor Control signal, just can be by realize the adjusting the telescope to one's eyes continuous focusing of head of step motor drive ball wire bar pair, and simple to operate, very easy to use.
Description of drawings
Fig. 1 is the structural representation of paper three-dimension deformation-quantity detection system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, specify the present invention.
See also Fig. 1, a kind of paper three-dimension deformation-quantity detection system is used for measuring the three-dimension deformation-quantity of paper distortion process, comprising: stretching device 10, width detecting 20, thickness detection apparatus 30, controller 40 and display device 50.
Stretching device 10 is used for paper 60 is stretched, and measures the tension variation of paper 60 in deformation process and corresponding elastic modulus etc. and quantizes data.
Width detecting 20 is arranged on stretching device 10 tops, is used for measuring width and the length variations amount of paper 60 in deformation process.This width detecting 20 comprises frame 201, stepper motor 202, shaft coupling 203, width camera 204, width microscope 205 and annular light source 206, frame 201 is provided with stepper motor holder 207, ball wire bar pair 208 and camera holder 209, stepper motor holder 207 is arranged on frame 201 tops, and stepper motor 202 is arranged on the stepper motor holder 207 and is connected to controller 40.Ball wire bar pair 208 is arranged on frame 201 inboards, and camera holder 209 1 ends are connected with ball wire bar pair 208.Shaft coupling 203 is connected with stepper motor 202, and its axle is arranged in frame 201 and is connected by screw rod 210 with camera holder 209, width camera 204, width microscope 205 and annular light source 206 are connected successively and place stretching device 10 tops, and width camera 204 is connected with controller 40, and width microscope 205 is connected to the other end of camera holder 209.
Thickness detection apparatus 30 is arranged on stretching device 10 1 sides, is used for measuring the amounts of thickness variation of paper 60 in deformation process.This thickness detection apparatus 30 comprises: frame 301, stepper motor 302, shaft coupling 303, thickness camera 304, thickness microscope 305 and annular light source 306, frame 301 is provided with stepper motor holder 307, ball wire bar pair 308 and camera holder 309, stepper motor holder 307 is arranged on frame 301 tops, and stepper motor 302 is arranged on the stepper motor holder 307 and is connected to controller 40.Ball wire bar pair 308 is arranged on frame 301 inboards, and camera holder 309 1 ends are connected with ball wire bar pair 308.Shaft coupling 303 is connected with stepper motor 302, and its axle is arranged in frame 301 and is connected by screw rod 310 with camera holder 309.Thickness camera 304, thickness microscope 305 and annular light source 306 are connected successively and place stretching device 10 1 sides, and thickness camera 304 is connected with controller 40, and thickness microscope 305 is connected to the other end of camera holder 309.
Controller 40 is connected with host computer, in order to the control signal of reception host computer and according in the control signal control system motion of installing.It also is connected with stretching device 10, width detecting 20 and thickness detection apparatus 30 respectively, and specifically be connected to the stepper motor 202 of width detecting 20 and the stepper motor 302 and the thickness camera 304 of width camera 204 and thickness detection apparatus 30, be used for the motion of control stretching device 10, stepper motor 202 and stepper motor 302, control width camera 204 and thickness camera 304 are taken, and the measurement result of reception stretching device 10, width camera 204 and thickness camera 304, measurement result is sent to display device 50.Display device 50 is connected with controller 40, is used to receive and show the measurement result of each device.
In this example, above-mentioned display device 50 adopts LCD.Stepper motor 202 and stepper motor 302 are 57 serial two-phase hybrid stepping motors, and minimum step pitch is 1.8/16 degree.Simultaneously, in order to improve measuring accuracy, reach the detection of micron order deflection and the measurement result of acquisition high-resolution, the above-mentioned width camera 204 and the pixel value of thickness camera 304 are 3,000,000 pixels.In addition, according to the standard pattern width of the 15mm of GB regulation, width microscope 205 adopts 0.7 times-4.5 power microscope head.And at the test of the thickness deformation amount of 100 microns thin papers, thickness microscope 305 adopts 0.63 * 3.5 times of-5 * 3.5 times of continuous zoom microlens.Wherein, the concrete parameter of width microscope 205 and thickness microscope 305 see Table 1, table 2.
Table 1 width camera parameter list
Table 2 thickness camera parameter list
Paper three-dimension deformation-quantity detection system of the present invention adopts camera observation sample paper, utilize computing machine that the sample paper image information that obtains is changed into binary map by image thresholding split plot design, again binary map and theoretical sample paper image are carried out image subtraction generation paper distortion binary map, the paper distortion binary map is being calibrated laggard row bound measurement, obtain the Deformation of Paper amount, thereby realize measurement the paper distortion amount.The width detecting of this paper three-dimension deformation-quantity detection system and thickness detection apparatus all adopt stepper motor as power source, by being set, the step motor control signal drives ball wire bar pair, realization adjust the telescope to one's eyes the head continuous focusing, thereby obtain distinct image.Below introduce the course of work of paper three-dimension deformation-quantity detection system of the present invention:
At first, starting 10 pairs of paper 60 of stretching device stretches, reach the stretching that stops after the default amount of tension paper, controller 40 obtains the tension variation of paper 60 in deformation process and corresponding elastic modulus etc. and quantizes data, and those data are sent to display device 50 show.
Secondly, the enlargement factor of adjusting thickness microscope 305 after stretching is finished is 0.63X3.5, and adjusts the brightness of annular light source 306, and the step angle that stepper motor 302 is set is 1.8 degree, and thickness camera 304 is carried out rapid focus, finds subject fast.
Afterwards, the enlargement factor of adjusting thickness microscope 305 is target enlargement factor 5X3.5, and the brightness of adjustment annular light source 306, the step angle that stepper motor 302 is set is 1.8 degree, thickness camera 302 is carried out rapid focus, the step angle that finds subject to adjust stepper motor 302 afterwards is that 1.8/16 degree is accurately focused to thickness camera 305, looks for subject clearly.
At last, take image being shot, controller 40 changes into binary map with the sample paper image information that obtains by image thresholding split plot design, again binary map and theoretical sample paper image are carried out image subtraction generation paper distortion binary map, the paper distortion binary map is calibrated laggard row bound to be measured, obtain the paper thickness deflection, and be sent to display device 50 and show.
In the above-mentioned steps, the action parameter of each device all is provided with by controller, and image focusing and final photographic images in each measurement result and the image shoot process all show by display device.Also width and the length deformation amount to paper detects when carrying out paper sheet thickness deflection shooting measurement, width and the length variations amount of paper in deformation process taken measurement by width detecting, its concrete operations step is identical with the operation of above-mentioned thickness detection apparatus, does not repeat them here.
Paper three-dimension deformation-quantity detection system of the present invention is simple in structure, and is easy for installation.This system can detect length deformation, width deformation and the thickness deformation of paper in drawing process simultaneously.And it detects Deformation of Paper by camera, and the enlargement factor that only need change microlens just can realize the adjustment of measuring accuracy.Adopt video camera, the 5X3.5 enlarging lens doubly of 3,000,000 pixels, accuracy of detection can reach 0.2um, the measuring accuracy height.Therefore, the present invention has realized in the paper distortion process measurement to the three-dimension deformation-quantity of paper, and the measuring accuracy height, has improved accuracy of detection, help in the process of paper production, to solve the excessive problem of paper distortion, effectively guarantee the paper chromatography quality in the paper printing process.In addition, this system can also realize continuous focusing, and it configures the Stepping Motor Control signal, just can be by realize the adjusting the telescope to one's eyes continuous focusing of head of step motor drive ball wire bar pair, and simple to operate, very easy to use.
More than disclosed only be several specific embodiment of the present invention, but the present invention is not limited thereto, any those skilled in the art can think variation, all should drop in protection scope of the present invention.
Claims (7)
1. paper three-dimension deformation-quantity detection system is used for measuring the three-dimension deformation-quantity of paper distortion process, it is characterized in that, comprising: stretching device, width detecting, thickness detection apparatus, controller and display device, wherein,
Described stretching device is used for paper is stretched, and measures the tension variation of paper in deformation process and corresponding elastic modulus;
Described width detecting is arranged on described stretching device top, is used for measuring width and the length variations amount of paper in deformation process; Described width detecting further comprises: first frame, first stepper motor, first shaft coupling, width camera, width microscope and first annular light source, described first frame is provided with the first stepping motor fixing seat, first ball wire bar pair and the first camera holder, the described first stepping motor fixing seat is arranged on described first upper rack, and described first stepper motor is arranged on the described first stepping motor fixing seat and is connected to described controller; Described first ball wire bar pair is arranged on the described first frame inboard, and the described first camera holder, one end is connected with described first ball wire bar pair; Described first shaft coupling is connected with described first stepper motor, and its axle is arranged in described first frame and is connected by screw rod with the described first camera holder, described width camera, width microscope and first annular light source are connected successively and place described stretching device top, and described width camera is connected with described controller, and described width microscope is connected to the described first camera holder other end;
Described thickness detection apparatus is arranged on described stretching device one side, is used for measuring the amounts of thickness variation of paper in deformation process; Described thickness detection apparatus further comprises: second frame, second stepper motor, second shaft coupling, thickness camera, thickness microscope and second annular light source, described second frame is provided with the second stepper motor holder, second ball wire bar pair and the second camera holder, the described second stepper motor holder is arranged on described second upper rack, and described second stepper motor is arranged on the described second stepper motor holder and is connected to described controller; Described second ball wire bar pair is arranged on the described second frame inboard, and the described second camera holder, one end is connected with described second ball wire bar pair; Described second shaft coupling is connected with described second stepper motor, and its axle is arranged in described second frame and is connected by screw rod with the described second camera holder, described thickness camera, thickness microscope and second annular light source are connected successively and place described stretching device one side, and described thickness camera is connected with described controller, and described thickness microscope is connected to the described second camera holder other end;
Described controller is connected with described stretching device, width detecting and thickness detection apparatus respectively, be used to control the motion of described stretching device, width detecting and thickness detection apparatus, receive the measurement result of each device, and described measurement result is sent to described display device;
Described display device is connected with described controller, is used for receiving and showing described measurement result.
2. paper three-dimension deformation-quantity detection system as claimed in claim 1 is characterized in that, described width microscope adopts 0.7 times-4.5 power microscope head.
3. paper three-dimension deformation-quantity detection system as claimed in claim 1 is characterized in that, described thickness microscope adopts 1 * 3.5 times of-5 * 3.5 times of continuous zoom microlens.
4. paper three-dimension deformation-quantity detection system as claimed in claim 1 is characterized in that, the pixel value of described width camera and thickness camera is 3,000,000 pixels.
5. paper three-dimension deformation-quantity detection system as claimed in claim 1 is characterized in that, described first stepper motor, second stepper motor are 57 serial two-phase hybrid stepping motors, and its minimum step pitch is 1.8/16 degree.
6. paper three-dimension deformation-quantity detection system as claimed in claim 1 is characterized in that, described display device is a LCD.
7. paper three-dimension deformation-quantity detection system as claimed in claim 1 is characterized in that described controller is connected with host computer, receives the control signal from host computer.
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| CN101162140A (en) * | 2006-10-13 | 2008-04-16 | 虹光精密工业（苏州）有限公司 | Paper size feeler mechanism for image scanner |
| CN101398295A (en) * | 2007-09-27 | 2009-04-01 | 株式会社东芝 | Sheet thickness measuring device and image forming apparatus |
| CN201707035U (en) * | 2010-05-14 | 2011-01-12 | 上海伦恩通用技术有限公司 | Paper three-dimensional deformation detecting system |
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| US20060196621A1 (en) * | 2005-03-01 | 2006-09-07 | Johansson Ola M | Virtual hand sheet method and system for estimating paper properties |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162140A (en) * | 2006-10-13 | 2008-04-16 | 虹光精密工业（苏州）有限公司 | Paper size feeler mechanism for image scanner |
| CN101398295A (en) * | 2007-09-27 | 2009-04-01 | 株式会社东芝 | Sheet thickness measuring device and image forming apparatus |
| CN201707035U (en) * | 2010-05-14 | 2011-01-12 | 上海伦恩通用技术有限公司 | Paper three-dimensional deformation detecting system |
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