CN201346907Y - Positioning detection device with background lighting unit - Google Patents
Positioning detection device with background lighting unit Download PDFInfo
- Publication number
- CN201346907Y CN201346907Y CNU2008201825798U CN200820182579U CN201346907Y CN 201346907 Y CN201346907 Y CN 201346907Y CN U2008201825798 U CNU2008201825798 U CN U2008201825798U CN 200820182579 U CN200820182579 U CN 200820182579U CN 201346907 Y CN201346907 Y CN 201346907Y
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- workpiece
- image
- unit
- working substance
- lighting unit
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- 238000001514 detection method Methods 0.000 title claims abstract description 9
- 238000007639 printing Methods 0.000 claims abstract description 24
- 238000007650 screen-printing Methods 0.000 claims abstract description 9
- 238000007781 pre-processing Methods 0.000 claims abstract 2
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000126 substance Substances 0.000 description 60
- 238000010586 diagram Methods 0.000 description 19
- 238000005286 illumination Methods 0.000 description 15
- 238000010422 painting Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
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- Length Measuring Devices By Optical Means (AREA)
Abstract
一种具有背景照明单元的定位检测装置，包括：一移动装置，用以将一工作物由一处理前位置移至工作位置，工作物具有一印刷面及一非印刷面；一网版印刷单元，用以印刷一预定图样的印刷层于工作物的印刷面上；一影像撷取单元，用以在工作物位于工作位置时撷取一影像；至少一背景照明单元，用以在影像撷取单元撷取影像时将预定范围的光投射至网版印刷单元上，且该光并不投射至该工作物；借此，撷取到的影像包括一工作物区及一背景区，且工作物区具有一第一平均亮度，背景区具有一第二平均亮度；第一平均亮度与第二平均亮度相差一预定的明暗差异值。本实用新型兼具产生背光的效果使得工作物的位置辨别容易及提高产品良率等优点及功效。
A positioning detection device with a background lighting unit includes: a moving device for moving a workpiece from a pre-processing position to a working position, the workpiece having a printing surface and a non-printing surface; a screen printing unit for printing a printing layer of a predetermined pattern on the printing surface of the workpiece; an image capture unit for capturing an image when the workpiece is located at the working position; at least one background lighting unit for projecting a predetermined range of light onto the screen printing unit when the image capture unit captures the image, and the light is not projected onto the workpiece; thereby, the captured image includes a workpiece area and a background area, and the workpiece area has a first average brightness, and the background area has a second average brightness; the first average brightness and the second average brightness differ by a predetermined brightness difference value. The utility model has the advantages and effects of generating a backlight effect, making it easy to identify the position of the workpiece and improving the product yield.
Description
Technical field
The utility model relates to a kind of locating and detecting device, relates in particular to a kind of locating and detecting device with background illumination unit of doing an illumination at background.
Background technology
Traditional detection and localization, optimal mode is to place a planar light source 950 at the rear of a working substance 921, similar mode backlight, as shown in Figure 1.When carrying out capture, working substance 921 zones are darker, and are brighter all around, are very easy to judge the edge (as shown in Figure 2) of this working substance 921.Yet in some occasion, the rear of working substance 921 is provided with other objects, will not allow the placement of this planar light source 950.
The rear of supposing working substance 921 is provided with other objects 960, as shown in Figure 3, can remove earlier, position as shown in Figure 4, one space is promptly arranged this moment, allow the planar light source 950 traversing rears that enter to this working substance 921, treat to shift out after capture is finished, last, other objects 960 move back to original position (as shown in Figure 3) more again, yet, these actions of shifting out immigration are very consuming time, significantly influence operating efficiency, and shift out drive unit and location aware devices that immigration has complexity again, also improving whole equipment cost and maintenance cost, is not a desirable feasible method.
As shown in Figure 5, existing locating and detecting device 90 is to capture the auxiliary of an image 60 with a light source 91 as an image acquisition unit 940, and its range of exposures comprises a working substance 921 and a screen printing unit 930 simultaneously.
But the ink type of screen painting is various, background is comparatively mixed and disorderly, more unfavorable image identification, and the such radiation modality of existing locating and detecting device 90, can make this working substance 921 in pick-up image 60, form a minimum working substance district 61 of shading value difference and a background area 62 respectively with this screen printing unit 930, the border that is difficult for telling this working substance 921 (is illustrated in figure 6 as the schematic diagram of existing 90 picked image 60 of locating and detecting device, in fact, the shading value difference that this working substance district 61 and this background area are 62 is minimum, the border in this working substance district 61 is to be difficult to too in a jumble differentiate because of this background area 62), quite difficult in the judgement of these working substance 921 positions, the probability of printing position deviation increases relatively, influences the yield of product.
In addition, the gap that aforesaid this screen printing unit 930 and working substance are 921 is minimum, unless will move behind this screen printing unit 930 earlier, otherwise can't put into portable planar light source 950 at all.Earlier the mode of moving behind this screen printing unit 930 is solved even if adopt, also can face the action of shifting out and moving into (being that whole efficiency reduces) very consuming time and (consult Fig. 3 and shown in Figure 4 with the problems such as equipment complex and expensive that shift out and move into, wherein, other object 960 is a screen painting unit 930).
Therefore, be necessary to research and develop new product, to solve above-mentioned shortcoming and problem.
The utility model content
Technical problem underlying to be solved in the utility model is, overcome the above-mentioned defective that prior art exists, and a kind of locating and detecting device with background illumination unit is provided, it has generation effect backlight concurrently makes the position discrimination of working substance reach advantage and effects such as improving the product yield easily.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of locating and detecting device with background illumination unit is characterized in that, comprising: a mobile device, and in order to being handled the front position by one, a working substance moves to this operating position, and this working substance has a printing surface and a non-printing surface; One screen painting unit, in order to the printed layers of printing a preset pattern on the printing surface of this working substance; One image acquisition unit is in order to capture an image when this working substance is positioned at this operating position; At least one background illumination unit, in order to when this image acquisition unit captures this image the light of preset range being projected on this screen painting unit, and this light is not projected to this working substance; Whereby, this image that captures comprises a working substance district and a background area, and this working substance district has one first mean flow rate, and this background area has one second mean flow rate; This first mean flow rate and this second mean flow rate differ a predetermined light and shade difference value.
Aforesaid locating and detecting device with background illumination unit, wherein the boundary of this working substance also can be located in the acquisition position of image acquisition unit, utilizes the image capture of boundary position, studies and judges the position of this working substance.
Aforesaid locating and detecting device with background illumination unit wherein comprises several image acquisition units again.
Aforesaid locating and detecting device with background illumination unit, wherein the adjustment of a predetermined angular can be done in the background illumination unit.
The beneficial effects of the utility model are that it has generation effect backlight concurrently makes the position discrimination of working substance reach advantage and effects such as improving the product yield easily.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the schematic diagram of traditional backlight source image-taking device
Fig. 2 is the image schematic diagram of traditional backlight source capture
Fig. 3 is the schematic diagram of existing locating and detecting device in conjunction with the process one of backlight
Fig. 4 is the schematic diagram of existing locating and detecting device in conjunction with the process two of backlight
Fig. 5 is the schematic diagram of existing locating and detecting device
Fig. 6 is the schematic diagram of the pick-up image of existing locating and detecting device
Fig. 7 is the schematic diagram with locating and detecting device of background illumination unit of the present utility model
Fig. 8 is that working substance of the present utility model is in the schematic diagram of handling the front position
Fig. 9 is the schematic diagram of working substance of the present utility model in the operating position
Figure 10 is the schematic diagram of working substance of the present utility model after being completed for printing
Figure 11 is the schematic diagram of pick-up image of the present utility model
Figure 12 is the schematic diagram of second embodiment of the present utility model
Figure 13 is the schematic side view of second embodiment of the present utility model
Figure 14 is the schematic diagram of the 3rd embodiment of the present utility model
Figure 15 is the schematic diagram of the pick-up image of the 3rd embodiment of the present utility model
Figure 16 A is the schematic diagram of the working substance position one of the 3rd embodiment of the present utility model
Figure 16 B is the schematic diagram of the working substance position two of the 3rd embodiment of the present utility model
Figure 17 A is the schematic diagram of the 4th embodiment of the present utility model
Figure 17 B is the schematic diagram of the pick-up image of the 4th embodiment of the present utility model
The number in the figure explanation:
20 mobile devices, 21 working substances
P1 handles P2 operating position, front position
The non-printing surface of 21A printing surface 21B
30 screen painting unit, 22 printed layers
P3 the 3rd position 40 image acquisition units
60 picked image, 50 background illumination unit
61 working substance districts, 62 background areas
70 reference position θ predetermined angulars
80 supporting parts
90 existing locating and detecting device 91 light sources
940 image acquisition units, 921 working substances
930 screen painting unit, 950 planar light sources
960 other objects
The specific embodiment
As Fig. 7, Fig. 8 and shown in Figure 9, the utility model is the locating and detecting device that has the background illumination unit for a kind of, and it comprises:
One mobile device 20 moves to this operating position P2 in order to a working substance 21 is handled front position P1 by one, and this working substance 21 has a printing surface 21A and a non-printing surface 21B;
One screen painting unit 30, go up (as shown in figure 10 in the printing surface 21A of this working substance 21 in order to the printed layers 22 of printing a preset pattern, when this working substance 21 after this operating position P2 is completed for printing, be to move to one the 3rd position P3, and this printing surface 21A go up to form this printed layers 22.)；
One image acquisition unit 40 is in order to capture an image 60 when this working substance 21 is positioned at this operating position P2;
At least one background illumination unit 50, in order to the light of preset range being projected on this screen painting unit 30 when this image acquisition unit 10 these images 60 of acquisition, and this light is not projected to this working substance 21;
Whereby, this image that captures 60 comprises a working substance district 61 and a background area 62, and this working substance district 61 has one first mean flow rate, and this background area 62 has one second mean flow rate; This first mean flow rate and this second mean flow rate are to differ a predetermined light and shade difference value.
In more detail, this image acquisition unit 40 is to be provided with several reference positions 70, can be used as the benchmark of these working substance 21 location.
As shown in figure 11, when this working substance 21 moves to this second place P2,40 picked image 60 of this image acquisition unit can obviously pick out this working substance district 61 and this background area 62, and whether the position of studying and judging this working substance 61 whereby is in the scope of several reference positions 70; If in scope, then print; If not in scope, then carry out the correction of this working substance 21, lay equal stress on and cover the detection of image.
As Figure 12 and shown in Figure 13, this working substance 21 generally is to be located on the supporting part 80, and the boundary of this working substance 21 also can be located in the acquisition position of image acquisition unit 40 of the present utility model, utilizes the image capture of boundary position, studies and judges this working substance 21 and whether meets the desired position; In addition, the adjustment of a predetermined angle theta also can be done in this background illumination unit 50, makes the irradiation position of light effectively this working substance district 61 be presented tangible light and shade difference with this background area 62.
As Figure 14 and shown in Figure 15, the demand according to detecting also can be provided with several image acquisition units 40, and the acquisition of image is carried out on the border of these working substance 21 diverse locations; Suppose that the border of this working substance 21 should fall within the central authorities of this reference position 70, then Figure 16 A is depicted as the image that this working substance 21 places correct operating position, and Figure 16 B departs from the image of tram for this working substance; In addition, put the supporting part 80 of this working substance 21, except that the position of image capture, remainder can be coated with nontransparent material, shown in Figure 17 A and Figure 17 B, non-image capture position on this supporting part 80 is coated with nontransparent material (hatching among Figure 17 A), can make the identification scope more concentrated, and is more easy in identification.
In addition, the following equivalent structure of the also replaceable one-tenth of the described supporting part 80 of leading portion:
Dig out several windows in the middle of [a] rigidity plate body (for example steel plate);
Dig out several windows in the middle of [b] rigidity plate body (for example steel plate), and in window, insert transparency material (for example glass).
At this moment, also can reach identical effect.
In sum, advantage of the present utility model and effect can be summarized as:
[1] produces effect backlight so that the position discrimination of working substance is easy. Existing detection and localization dress The light source irradiation scope meeting of putting is so that difficult in the judgement of this working substance position; And this practicality is new Type produces effect backlight for this background area polishing, and then can make the border of this working substance obvious Present, quite easy on position discrimination.
[2] improve product yield. Existing locating and detecting device phase in the judgement of this working substance position Work as difficulty, the probability of printing position deviation increases relatively, affects the yield of product; And this practicality is new Type can make the border of this working substance obviously present, and is difficult for offset issue takes place, and product yield is carried relatively High.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201825798U CN201346907Y (en) | 2008-12-30 | 2008-12-30 | Positioning detection device with background lighting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201825798U CN201346907Y (en) | 2008-12-30 | 2008-12-30 | Positioning detection device with background lighting unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201346907Y true CN201346907Y (en) | 2009-11-18 |
Family
ID=41366385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201825798U Expired - Fee Related CN201346907Y (en) | 2008-12-30 | 2008-12-30 | Positioning detection device with background lighting unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201346907Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248752A (en) * | 2010-04-22 | 2011-11-23 | 曼兹自动化股份公司 | Printing stencil and method for setting the relative position of a printed pattern and a substrate |
| CN103129111A (en) * | 2011-11-23 | 2013-06-05 | 茂迪股份有限公司 | Screen cloth for printing screens and screens for printing solar cell electrodes |
-
2008
- 2008-12-30 CN CNU2008201825798U patent/CN201346907Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248752A (en) * | 2010-04-22 | 2011-11-23 | 曼兹自动化股份公司 | Printing stencil and method for setting the relative position of a printed pattern and a substrate |
| CN102248752B (en) * | 2010-04-22 | 2014-12-24 | 曼兹自动化股份公司 | Printing stencil, stencil printing state and relating method |
| CN103129111A (en) * | 2011-11-23 | 2013-06-05 | 茂迪股份有限公司 | Screen cloth for printing screens and screens for printing solar cell electrodes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20121230 |