CN210026689U - CCD detection device for product quality of printing machine - Google Patents
CCD detection device for product quality of printing machine Download PDFInfo
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- CN210026689U CN210026689U CN201920268481.2U CN201920268481U CN210026689U CN 210026689 U CN210026689 U CN 210026689U CN 201920268481 U CN201920268481 U CN 201920268481U CN 210026689 U CN210026689 U CN 210026689U
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Abstract
The utility model provides a printing machine product quality CCD detection device, the support of department setting is located at printing machine stoving side and rolling side, be provided with on the support along the X axle moving mechanism of stoving side with rolling side lateral shifting, the Y axle moving mechanism of setting on X axle moving mechanism, be provided with CCD camera subassembly one and CCD camera subassembly two on Y axle moving mechanism, it is provided with first CCD camera and second CCD camera to correspond on CCD camera subassembly one and the CCD camera subassembly two, first CCD camera and second CCD camera are connected with the control computer, control computer and display and host computer are connected, host computer and alarm, X axle movement actuating mechanism and Y axle movement actuating mechanism. The utility model discloses in when taking place the skew when taking thin the area, the CCD camera can remove along with thin limit portion removal of taking automatically, does not need personnel's manual going to handle.
Description
Technical Field
The utility model belongs to a printing machine printed matter quality detection technique especially relates to a printing machine product quality CCD detection device.
Background
The printing of a printer for producing the resistor and capacitor products ensures the effect of single printing at this time, and the position, the expansion and contraction amount and the like of each continuously produced product are controlled within a certain range, otherwise, when the printed products reach the next lamination process, the whole stack of products is scrapped due to a few abnormal products.
At present, the single sheet and continuous multi-sheet printing effect is detected from a first sheet to a second dimension by manual work, and the detection items are as follows: whether the round and diamond MARKs have concave-convex parts or not, whether the dislocation quantity of the opposite lines of the front and the rear products is within the tolerance range or not, and the like. Visual inspection was performed every ten minutes after normal start-up.
The visual detection mode is performed every ten minutes after the normal startup, and a small number of abnormal products are often difficult to find.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a printing machine product quality CCD detection device.
The utility model adopts the technical proposal that:
the utility model provides a printing machine product quality CCD detection device, which comprises a CCD detection mechanism arranged between a drying side and a rolling side of the printing machine, wherein the CCD detection mechanism is used for detecting whether the round MARK and the diamond MARK arranged on the printed matter have the concave-convex shape or not and detecting the dislocation amount of the counterpoint line to judge the quality of the printed matter, the CCD detection mechanism comprises a bracket arranged at the drying side and the rolling side of the printing machine, an X-axis moving mechanism which transversely moves along the drying side and the rolling side and a Y-axis moving mechanism arranged on the X-axis moving mechanism are arranged on the bracket, a first CCD camera component and a second CCD camera component are arranged on the Y-axis moving mechanism, a first CCD camera and a second CCD camera are correspondingly arranged on the first CCD camera component and the second CCD camera component, the first CCD camera and the second CCD camera are connected with a control computer, an X-axis moving driving mechanism and a Y-axis moving driving mechanism are correspondingly arranged at the X-axis moving mechanism and the Y-axis moving mechanism respectively, the control computer is connected with the display and the upper computer, and the upper computer is connected with the alarm, the X-axis moving driving mechanism and the Y-axis moving driving mechanism.
Furthermore, the X-axis moving mechanism comprises two X-axis beams arranged in parallel, an X-axis sliding chute arranged on the X-axis beams, an X-axis sliding plate arranged at the upper end of the X-axis sliding chute, a fixed plate arranged on the X-axis sliding plate, and a Y-axis moving mechanism arranged on the fixed plate; the X-axis moving driving mechanism comprises a driving shaft arranged between two X-axis beams arranged in parallel, an X-axis driving motor is arranged at one end of the driving shaft, an X-axis drag chain assembly is arranged at the X-axis beam on one side of the X-axis driving motor, the X-axis drag chain assembly is respectively connected with an X-axis sliding plate and a motor shaft of the X-axis driving motor, and an X-axis drag chain plate is arranged on the X-axis drag chain assembly.
Furthermore, the Y-axis moving mechanism comprises a Y-axis beam arranged on the fixed plate and a Y-axis drag chain mechanism arranged on the Y-axis beam, the Y-axis drag chain mechanism is connected with a Y-axis sliding block arranged on the Y-axis guide rail, the Y-axis sliding block is fixed with the CCD camera assembly II, the CCD camera assembly I is fixed at one end of the Y-axis guide rail, and the Y-axis moving mechanism is a Y-axis moving motor.
Further, CCD camera subassembly one and CCD camera subassembly two are the same in structure, all include the camera fixed plate, and one side of camera fixed plate is fixed on camera guide rail or camera slider, and the other end is provided with the camera slide rail, is provided with the camera slider on the camera slide rail, is provided with the camera fixing base on the camera slider, and first CCD camera or second CCD camera are fixed in the camera fixing base, set up the focus hole that corresponds with first CCD camera or second CCD camera in the bottom of camera fixed plate, are provided with camera driving motor in the upper end of camera guide rail, camera driving motor is connected with the camera slider.
Further, a cover body is arranged on the outer side of the first CCD camera or the second CCD camera.
The utility model discloses in when taking place the skew when taking thin the area, the CCD camera can remove along with thin limit portion removal of taking automatically, does not need personnel's manual going to handle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 and 2 are schematic structural views of the present invention;
FIG. 3 is a schematic structural view of the CCD detecting mechanism of the present invention;
fig. 4 and 5 are schematic structural views of a CCD camera assembly i or a CCD camera assembly ii according to the present invention;
fig. 6 is a schematic diagram of the calculation principle of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.
Referring to fig. 1 to 6, the utility model provides a printing machine product quality CCD detection method, this method is through detecting whether circular MARK and the rhombus MARK that set up on the printed matter have unsmooth and detect the dislocation volume to the line and judge the printed matter quality. The quality of the printed matter is judged by detecting whether circular MARKs and rhombic MARKs arranged on the printed matter by a CCD detection mechanism arranged between a drying side 1 and a winding side 2 of a printing machine have concave-convex parts and detecting the dislocation quantity of an alignment line, before detection, a bracket is arranged at the drying side 1 and the winding side 2 of the printing machine, an X-axis moving mechanism which transversely moves along the drying side and the winding side and a Y-axis moving mechanism arranged on the X-axis moving mechanism are arranged on the bracket, a CCD camera component I and a CCD camera component II are arranged on the Y-axis moving mechanism, a first CCD camera 16 and a second CCD camera 17 are correspondingly arranged on the CCD camera component I and the CCD camera component II, the first CCD camera 16 and the second CCD camera 17 are connected with a control computer 101, an X-axis moving driving mechanism and a Y-axis moving driving mechanism are correspondingly arranged at the X-axis moving mechanism and the Y-axis moving mechanism respectively, the control computer 101 is connected with the display 100 and the upper computer 102, and the upper computer 102 is connected with the alarm 103, the X-axis movement driving mechanism and the Y-axis movement driving mechanism.
The method for detecting the dislocation quantity of the bit line comprises the following steps: the upper computer drives the X-axis movement driving mechanism and the Y-axis movement driving mechanism to enable the first CCD camera 16 and the second CCD camera 17 to move to the right upper ends of two mark lines on the front side and the rear side of two continuous printed matters, when a front end printing head is used for printing, the upper computer sends a command for acquiring CCD images to the control computer 101, the control computer 101 controls the first CCD camera 16 and the second CCD camera 17 to act to acquire images and upload acquired data to the control computer 101 in real time, the control computer 101 adopts a multi-point straight line fitting method to perform straight line fitting on qualified points in a pair line image, the two pair lines are fitted into a straight line to obtain a straight line equation, the average distance of the two pair lines can be calculated according to a mathematical formula, the average distance of the two pair lines is compared with a standard value range set in the control computer 101, and the comparison result is output to the upper computer 102, when the straight line fitting distance is within the standard value range, the control computer 101 outputs a normal display command to the display 100; otherwise, the control computer 101 outputs an abnormal command to the display 102, and the upper computer 101 performs audible and visual alarm or shutdown control.
The method for detecting whether the circular and rhombic MARKs arranged on the printed matter have the concave-convex parts is as follows: the upper computer drives the X-axis movement driving mechanism and the Y-axis movement driving mechanism to enable the first CCD camera and the second CCD camera to move to the upper ends of 4 MARKs at two ends of the center of a single printed matter, when a front end printing head prints, the upper computer 102 sends a command for acquiring CCD images to the control computer 101, the control computer controls 101 the first CCD camera 16 and the second CCD camera 17 to act to capture images, image data of the 4 MARKs and barycentric coordinates of the MARKs are acquired, the image data of the 4 MARKs and barycentric coordinates of the MARKs are uploaded to the control computer 101, the control computer 101 performs image moment operation on the circular MARKs and the rhombic MARKs according to the barycentric coordinates of the circular MARKs and the rhombic MARKs through a momentization function, calculates area and vacuum degree detection result data of the images by using the image moment data, outputs the result to the upper computer 102, when the area values of the 4 MARKs are within a standard range and the barycentric coordinates of the, controlling the computer to output a normal display command to the display; otherwise, the control computer outputs an abnormal command to the display, and the upper computer performs sound-light alarm or shutdown control.
The utility model also provides a printing machine product quality CCD detection device, include and set up CCD detection mechanism between printing machine stoving side 1 and rolling side 2, whether there is unsmooth and the dislocation volume that detects the counterpoint line through circular MARK and the rhombus MARK that CCD detection mechanism set up on detecting the printed matter and judging the printed matter quality, CCD detection mechanism includes the support that sets up in printing machine stoving side 1 and rolling side 2 departments, is provided with along stoving side 1 and 2 lateral shifting's of rolling side X axle moving mechanism on the support, sets up the Y axle moving mechanism on X axle moving mechanism, is provided with CCD camera subassembly one and CCD camera subassembly two on Y axle moving mechanism, it is provided with first CCD camera and second CCD camera to correspond on CCD camera subassembly one and CCD camera subassembly two, first CCD camera 16 and second CCD camera 17 are connected with control computer 101, X axle moving mechanism and Y axle moving mechanism department correspond respectively and are provided with X axle movement drive mechanism and Y The device comprises an axis movement driving mechanism, a control computer 101, a display 100 and an upper computer 102, wherein the upper computer 102 is connected with an alarm 103, an X-axis movement driving mechanism and a Y-axis movement driving mechanism.
The X-axis moving mechanism comprises two X-axis cross beams 7 arranged in parallel, an X-axis sliding chute 6 arranged on the X-axis cross beams 7, an X-axis sliding plate 8 arranged at the upper end of the X-axis sliding chute 6, a fixed plate arranged on the X-axis sliding plate 8 and a Y-axis moving mechanism arranged on the fixed plate; the X-axis moving driving mechanism comprises a driving shaft 4 arranged between two X-axis cross beams 7 arranged in parallel, an X-axis driving motor 5 is arranged at one end of the driving shaft 4, an X-axis drag chain assembly 15 is arranged at the X-axis cross beam on one side of the X-axis driving motor 5, the X-axis drag chain assembly 15 is respectively connected with an X-axis sliding plate 8 and a motor shaft of the X-axis driving motor, and an X-axis drag chain plate 14 is arranged on the X-axis drag chain assembly 15.
The Y-axis moving mechanism comprises a Y-axis beam 9 arranged on a fixing plate 11 and a Y-axis drag chain mechanism 10 arranged on the Y-axis beam 9, the Y-axis drag chain mechanism is connected with a Y-axis sliding block 13 arranged on a Y-axis guide rail 12, the Y-axis sliding block 13 is fixed with a CCD camera assembly II 17, the CCD camera assembly I16 is fixed at one end of the Y-axis guide rail, and the Y-axis moving mechanism is a Y-axis moving motor.
The structure of CCD camera subassembly one and CCD camera subassembly two is the same, all include camera fixed plate 22, one side of camera fixed plate 22 is fixed on camera guide rail or camera slider, the other end is provided with camera slide rail 21, be provided with camera slider 27 on the camera slide rail 21, be provided with camera fixing base 26 on the camera slider 27, first CCD camera 16 or second CCD camera 17 are fixed in camera fixing base 26, set up the focus hole 25 that corresponds with first CCD camera 16 or second CCD camera 17 in the bottom of camera fixed plate 26, be provided with camera driving motor 19 in the upper end of camera guide rail 21, camera driving motor 19 is connected 27 with the camera slider.
And a cover body 23 is arranged on the outer side of the first CCD camera or the second CCD camera.
In the above, the international popular open source EMGUCV vision development kit is adopted as a tool for vision calculation, and vb. The development is carried out by using a NET platform, so that a visual interface can be developed quickly on one hand, and on the other hand, the speed of the EMGUCV in the NET environment is not slower than that in the VC environment. In practical application, the optimized program makes the total time average of 4 paths of CCD image signals processed by the CPU about 50MS, and the production requirement is completely met.
Because the CPU needs to process four paths of image signals simultaneously, 4 threads are used for processing 4 paths of image signals respectively in order to increase the processing speed, and 4 entrusts are declared to be used for displaying the calculation result data. The specific processing code comprises:
Private CCD1Thread As Threading.Thread
Private CCD2Thread As Threading.Thread
Private CCD3Thread As Threading.Thread
Private CCD4Thread As Threading.Thread
Private Shared CCD1ThreadEvent As New System.Threading.AutoResetEvent(False)
Private Shared CCD2ThreadEvent As New System.Threading.AutoResetEvent(False)
Private Shared CCD3ThreadEvent As New System.Threading.AutoResetEvent(False)
Private Shared CCD4ThreadEvent As New System.Threading.AutoResetEvent(False)
private Delegate Sub CCD1Delegate (ByVal srcCCD1Mat As Mat)' Committee
Private Delegate Sub CCD2Delegate(ByVal srcCCD2Mat As Mat)
Private Delegate Sub CCD3Delegate(ByVal srcCCD3Mat As Mat)
Private Delegate Sub CCD4Delegate(ByVal srcCCD4Mat As Mat)
Private Delegate Sub CCD1UpdataUIDelegate(ByVal Circle As CircleF,ByVal Rbox AsRotatedRect)
Private Delegate Sub CCD2UpdataUIDelegate(ByVal Circle As CircleF,ByVal Rbox As RotatedRect)
Private Delegate Sub CCD3UpdataUIDelegate(ByVal dDist As Double,ByValiVertCentx As Integer,ByVal RectofROI3As Rectangle,ByVal LpointofLinelist AsList(Of PointF),ByVal RpointofLinelist As List(Of PointF))
Private Delegate Sub CCD4UpdataUIDelegate(ByVal dDist As Double,ByValiVertCentx As Integer,ByVal RectofROI4As Rectangle,ByVal LpointofLinelist AsList(Of PointF),ByVal RpointofLinelist As List(Of PointF))
In a central program for calculating a circular MARK and a rhombic MARK in an image, image moment operation is carried out on the circular MARK and the rhombic MARK by using a momentis function, and detection result data such as the area, the vacuum degree and the like of the image are calculated by using image moment data. The specific calculation code is as follows:
Dim Moms As MCvMoments＝CvInvoke.Moments(Circlecontour)
strucircle0.dmcirarea ═ moms. m00' circular MARK area
If struCircle0.dmCirArea>dminCircleArea And struCircle0.dmCirArea<dmaxCircleArea Then
Dim dmciracrlen As Double ═ cvinvoke. arclength (circlectourtour, True)' circular MARK arc length
Roundness of circle, mCirRoundness ═ 4 × math.pi strurcle 0.dmcirara/(dmcirrus:dmcirrus)'
In the program for calculating the distance between the opposite lines in the image, a multi-point straight line fitting method is adopted to fit the qualified points in the image of the opposite lines. The following procedure for finding a passing point:
after finding the qualified points, the points are fitted to form a straight line, and the procedure is as follows:
and fitting the two diagonal lines into a straight line to obtain a straight line equation, and calculating the average distance of the two diagonal lines according to a mathematical formula.
The technical solutions disclosed in the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific embodiments, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (5)
1. The utility model provides a printing machine product quality CCD detection device, its characterized in that, at the support that printing machine stoving side and rolling side department set up, be provided with on the support along the X axle moving mechanism of stoving side and rolling side lateral shifting, set up the Y axle moving mechanism on X axle moving mechanism, be provided with CCD camera subassembly one and CCD camera subassembly two on Y axle moving mechanism, it is provided with first CCD camera and second CCD camera to correspond on CCD camera subassembly one and the CCD camera subassembly two, first CCD camera and second CCD camera are connected with the control computer, and the control computer is connected with display and host computer, host computer and alarm, X axle removal actuating mechanism and Y axle removal actuating mechanism.
2. The CCD detector for detecting the product quality of the printing machine according to claim 1, wherein the X-axis moving mechanism comprises two X-axis beams arranged in parallel, an X-axis chute arranged on the X-axis beams, an X-axis sliding plate arranged at the upper end of the X-axis chute, a fixed plate arranged on the X-axis sliding plate, and a Y-axis moving mechanism arranged on the fixed plate.
3. The printing press product quality CCD detection device of claim 1, wherein the Y-axis moving mechanism comprises a Y-axis beam arranged on a fixed plate.
4. The CCD detector for detecting the product quality of the printing machine according to claim 1, wherein the first CCD camera component and the second CCD camera component have the same structure and comprise camera fixing plates, one side of each camera fixing plate is fixed on a camera guide rail or a camera slide block, the other end of each camera fixing plate is provided with a camera slide rail, each camera slide rail is provided with a camera slide block, each camera slide block is provided with a camera fixing seat, the first CCD camera or the second CCD camera is fixed in the camera fixing seat, and the bottom of each camera fixing plate is provided with a focusing hole corresponding to the first CCD camera or the second CCD camera.
5. The CCD detection device for the product quality of the printing machine as claimed in claim 4, wherein a cover is arranged outside the first CCD camera or the second CCD camera.
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| CN201920268481.2U CN210026689U (en) | 2019-03-01 | 2019-03-01 | CCD detection device for product quality of printing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940984A (en) * | 2019-03-01 | 2019-06-28 | 广州旭浩电子科技有限公司 | A kind of printing machine product quality CCD detection method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940984A (en) * | 2019-03-01 | 2019-06-28 | 广州旭浩电子科技有限公司 | A kind of printing machine product quality CCD detection method and device |
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