CN113183626A - Stock state detection device and oval calico printing machine - Google Patents
Stock state detection device and oval calico printing machine Download PDFInfo
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- CN113183626A CN113183626A CN202110444291.3A CN202110444291A CN113183626A CN 113183626 A CN113183626 A CN 113183626A CN 202110444291 A CN202110444291 A CN 202110444291A CN 113183626 A CN113183626 A CN 113183626A
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- image acquisition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/02—Arrangements of indicating devices, e.g. counters
- B41F33/025—Counters
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
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- Theoretical Computer Science (AREA)
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- Computer Graphics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention provides a printing stock state detection device and an elliptical printing machine, wherein the printing stock state detection device comprises: the device comprises a support, a guide piece arranged on the support, an installation frame movably connected with the guide piece, a power assembly driving the installation frame to move along the guide piece, a light source arranged on the installation frame, a three-dimensional image acquisition mechanism arranged on the installation frame and an image processing device connected with the three-dimensional image acquisition mechanism; the three-dimensional image acquisition mechanism is used for acquiring a three-dimensional image of a printing stock in the bedplate parking space; the image processing device is used for judging whether the printing stock is qualified or not. The printing stock state detection device acquires the three-dimensional image of the printing stock through the three-dimensional image acquisition mechanism, judges the laying quality of the printing stock based on the characteristics of the printing stock, lightens the workload of operators, improves the efficiency and is suitable for automatic production.
Description
Technical Field
The invention relates to the technical field of printing, in particular to a printed material state detection device and an elliptical printing machine.
Background
In the printing industry, printing materials are first laid on a printing platform of a printing device during operation, and then the printing platform or the printing materials are moved to a printing device through a driving mechanism to perform printing operation. If the printing material has curling, bulging, skewing or deformation, for example, defective products may be produced during printing. At present, the laying of printing stocks in the industry is carried out manually, operators need to check the printing stocks when cloth is laid, the operation intensity is high, manual identification influences are many, standards cannot be quantized, misjudgment is easy to occur, the missing inspection rate is high, the consistency is poor, and the printing stocks are wasted.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a printing stock state detection device and an elliptical printing machine.
One embodiment of the present invention provides a substrate condition detection apparatus including: the device comprises a support, a guide piece arranged on the support, an installation frame movably connected with the guide piece, a power assembly driving the installation frame to move along the guide piece, a light source arranged on the installation frame, a three-dimensional image acquisition mechanism arranged on the installation frame and an image processing device connected with the three-dimensional image acquisition mechanism;
a bedplate parking space is formed at one side of the support, the power assembly drives the mounting frame to be close to or far away from the bedplate parking space, and the three-dimensional image acquisition mechanism and the light source face the bedplate parking space;
the three-dimensional image acquisition mechanism is used for acquiring a three-dimensional image of a printing stock in the bedplate parking space;
the image processing device is used for acquiring the characteristic information of the printing stock from the three-dimensional image and judging whether the printing stock is qualified or not based on whether the difference between the characteristic information and the reference characteristic information is within a preset range or not.
Compared with the prior art, the printing stock state detection device acquires the three-dimensional image of the printing stock through the three-dimensional image acquisition mechanism, judges the laying quality of the printing stock based on the characteristics of the printing stock, reduces the workload of operators, improves the efficiency and is suitable for automatic production.
Further, the characteristic information includes one or more of a combination of a color of the substrate, a position of the substrate, and an outline of the substrate.
Further, the printing stock state detection device also comprises a counter which is respectively connected with the three-dimensional image acquisition mechanism and the image processing device; when the image processing device judges that the difference between the characteristic information and the reference characteristic information is not within the preset range, the counter counts, the three-dimensional image acquisition mechanism acquires the three-dimensional image of the printing stock again, the image processing device judges again, and when the counting times of the counter reach the preset times, the image processing device outputs the result that the printing stock is unqualified.
Further, the printing stock state detection device also comprises an alarm connected with the three-dimensional image acquisition mechanism; and when the image processing device judges that the printing stock is unqualified, the alarm sends out an alarm signal.
Further, the alarm signal is one or more of a light signal, a sound signal and a vibration signal.
Further, the light source is a surface light source, and a light emergent surface of the light source is arranged around the three-dimensional image acquisition mechanism.
Furthermore, a locking piece is arranged on the mounting frame and movably connected with the guide piece.
Further, the three-dimensional image acquisition mechanism is a 3d camera.
Another embodiment of the present invention provides an elliptical printing machine, comprising: the printing machine comprises a rack, an oval guide rail arranged on the rack, a plurality of printing platens arranged on the oval guide rail, a driving mechanism for driving the printing platens to move along the oval guide rail, a plurality of printing devices sequentially arranged along the oval guide rail and the printing stock state detection device, wherein the support is arranged on one side of the printing platens.
The elliptical printing machine further comprises a controller which is respectively connected with the printing device and the three-dimensional image acquisition mechanism, and when the image processing device judges that the printing stock is unqualified, the controller controls the printing device not to print the unqualified printing stock.
In order that the invention may be more clearly understood, specific embodiments thereof will be described hereinafter with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a substrate condition detecting device and a partial elliptical printing machine according to an embodiment of the invention;
FIG. 2 is a schematic view of the bottom of the mounting bracket according to one embodiment of the present invention;
fig. 3 is a schematic structural diagram of an elliptical printing machine according to another embodiment of the invention.
Description of reference numerals:
10. a support; 11. a guide member; 20. a mounting frame; 21. a locking member; 22. a slider; 30. a power assembly; 40. a light source; 50. a three-dimensional image acquisition mechanism; 51. a telecentric lens; 60. a controller; 71. a frame; 72. an elliptical guide rail; 73. a printing platen; 74. a printing device; 75. a substrate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, it is a schematic structural diagram of a printing material status detecting device and a partial elliptical printing machine according to an embodiment of the present invention, the printing material status detecting device includes: the three-dimensional image acquisition device comprises a support 10, a guide 11 arranged on the support 10, a mounting rack 20 movably connected with the guide 11, a power assembly 30 driving the mounting rack 20 to move along the guide 11, a light source 40 arranged on the mounting rack 20, a three-dimensional image acquisition mechanism 50 arranged on the mounting rack 20 and an image processing device connected with the three-dimensional image acquisition mechanism 50.
A table board parking space is formed on one side of the support 10, the power assembly 30 drives the mounting frame 20 to be close to or far away from the table board parking space, and the three-dimensional image acquisition mechanism 50 and the light source 40 face the table board parking space; the three-dimensional image acquisition mechanism 50 is used for acquiring a three-dimensional image of a printing stock 75 in the platen parking space; the image processing device is configured to acquire feature information of the printing material 75 from the three-dimensional image, and determine whether the printing material 75 is qualified based on whether a difference between the feature information and reference feature information is within a preset range.
The characteristic information may be selected according to the actual printing material 75, for example, in some embodiments, the color of the printing material 75 may be selected as the characteristic information, since the curled, bulged, deflected, deformed or damaged portion of the printing material 75 may cause a local portion of the printing material 75 to be shaded or darkened due to the influence of insufficient light irradiation, etc., so that the curled, bulged, deflected, deformed or damaged portion is different from the color of the normally laid printing material 75, and it may be determined that the printing material 75 is not laid by detecting the color, brightness, gray value, etc. of the printing material 75, and if the difference in color, brightness, or gray value exceeds a preset range; alternatively, in some embodiments, the position of the printing material 75 may be selected as the characteristic information, and if the difference between the laying position of the printing material 75 and the specified printing position exceeds a preset range, it indicates that the laying quality of the printing material is deviated or inclined; alternatively, in some embodiments, the profile of the substrate 75 may be selected as the characteristic information, if the contour of the substrate 75 differs from the contour of the normally laid substrate 75 by more than a preset range, it indicates that the substrate 75 has a curl, a bulge, a deflection, or a deformation, for example, when the substrate has a curl, a bulge, a deflection, a deformation, or a breakage, the substrate 75 may change in the height direction or the horizontal direction, so that by acquiring the contour of the substrate in a plurality of viewing angles in the three-dimensional image, then comparing the outlines of the printing stocks at a plurality of visual angles in the three-dimensional image with the outlines of the normally laid printing stocks at all visual angles, therefore, the accuracy of the judgment is improved, and in addition, the size of the area surrounded by the outline of the printing stock 75 can be combined with the size of the area surrounded by the outline of the normally laid printing stock 75 to further improve the accuracy. In addition, it should be noted that the above-mentioned characteristic information can be used in combination to improve the accuracy of the determination.
In some optional embodiments, the substrate condition detection apparatus further comprises a counter connected to the three-dimensional image acquisition mechanism 50 and the image processing apparatus, respectively; when the image processing device judges that the difference between the characteristic information and the reference characteristic information is not within the preset range, the counter counts, the three-dimensional image acquisition mechanism 50 acquires the three-dimensional image of the printing stock 75 again, the image processing device judges again, when the counting frequency of the counter reaches the preset frequency, the three-dimensional image acquisition mechanism 50 repeatedly acquires the detection images of the preset frequency, after the image processing device judges the detection images one by one, if the difference between the characteristic information and the reference characteristic information of the printing stock 75 in each detection image is not within the preset range, the image processing device outputs the result that the printing stock 75 is unqualified, then the counter is reset, and the three-dimensional image acquisition mechanism 50 acquires the image of the next printing stock 75.
In some alternative embodiments, the substrate condition sensing device further comprises an alarm connected to the three-dimensional image acquisition mechanism 50; the image processing apparatus outputs an unqualified signal when judging that the printing material 75 is unqualified, and the alarm receives the unqualified signal and sends out an alarm signal to remind an operator of coming processing. Wherein the alarm signal may be one or more of a light signal, a sound signal and a vibration signal.
Referring to fig. 2, which is a schematic structural diagram of the bottom of the mounting rack according to an embodiment of the present invention, in some optional embodiments, the light source 40 is a surface light source 40, a light emitting surface of the light source 40 is arranged around the three-dimensional image collecting mechanism 50, and the surface light source 40 outputs uniform and sufficient light to each position of the printing material 75.
In some alternative embodiments, a locking member 21 is disposed on the mounting frame 20, and the locking member 21 is movably connected to the guide 11, wherein the structure of the locking member 21 may be appropriately selected according to actual requirements, for example, in some embodiments, a sliding block 22 connected to the guide 11 is disposed on the mounting frame 20, and the locking member 21 is movably connected to the guide 11 through the sliding block 22, without being limited thereto. In addition, the power assembly 30 may be designed appropriately according to the actual structure of the guide 11 and the structure of the mounting frame 20, for example, in this embodiment, a motor is used to move the sliding block 22 along the sliding rail.
It should be noted that the three-dimensional image capturing mechanism may be designed according to actual needs, for example, a 3d vision sensor, a 3d camera, or other mechanisms capable of capturing a three-dimensional image of a printing material, in this embodiment, the three-dimensional image capturing mechanism is a 3d camera.
In some optional embodiments, a telecentric lens 51 connected to the collecting end of the three-dimensional image collecting mechanism 50 is further disposed on the three-dimensional image collecting mechanism 50. Telecentric lens 51 has unique optical properties: the high resolution can enable the image acquired by the three-dimensional image acquisition mechanism 50 to display more tiny details, and enable the imaging precision of the camera to reach 10 microns. The distortion of the image acquired by the three-dimensional image acquisition mechanism 50 due to the influence of light refraction of a common optical lens and the large error caused by the inconsistency with the actual image are avoided.
Referring to fig. 3, which is a schematic structural diagram of an elliptical printing machine according to another embodiment of the present invention, the printing material status detecting device may be applied to an elliptical printing machine, and the elliptical printing machine includes: a frame 71, an elliptical guide rail 72 provided on the frame 71, a plurality of printing platens 73 provided on the elliptical guide rail 72, a driving mechanism for driving the printing platens 73 to move along the elliptical guide rail 72, a plurality of printing devices 74 arranged in sequence along the elliptical guide rail 72, and the object condition detecting device as described above, wherein the carriage 10 is provided on one side of the printing platens 73.
In some optional embodiments, the elliptical printing machine further comprises a controller 60 connected to the printing device 74 and the three-dimensional image acquisition mechanism 50, respectively, and when the image processing device determines that the substrate 75 is not qualified, the controller 60 may record the printing platen 73 on which the unqualified substrate 75 is located or record the printing sequence of the unqualified substrate 75, and control the printing device 74 not to print the unqualified substrate 75, and the unqualified substrate 75 may be removed after blanking.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A substrate condition detection apparatus, comprising: the device comprises a support, a guide piece arranged on the support, an installation frame movably connected with the guide piece, a power assembly driving the installation frame to move along the guide piece, a light source arranged on the installation frame, a three-dimensional image acquisition mechanism arranged on the installation frame and an image processing device connected with the three-dimensional image acquisition mechanism;
a bedplate parking space is formed at one side of the support, the power assembly drives the mounting frame to be close to or far away from the bedplate parking space, and the three-dimensional image acquisition mechanism and the light source face the bedplate parking space;
the three-dimensional image acquisition mechanism is used for acquiring a three-dimensional image of a printing stock in the bedplate parking space;
the image processing device is used for acquiring the characteristic information of the printing stock from the three-dimensional image and judging whether the printing stock is qualified or not based on whether the difference between the characteristic information and the reference characteristic information is within a preset range or not.
2. The substrate condition detecting device according to claim 1, wherein: the characteristic information includes one or more of the combination of the color of the substrate, the position of the substrate and the contour of the substrate.
3. The substrate condition detecting device according to claim 1, wherein: the printing stock state detection device also comprises a counter which is respectively connected with the three-dimensional image acquisition mechanism and the image processing device;
when the image processing device judges that the difference between the characteristic information and the reference characteristic information is not within the preset range, the counter counts, the three-dimensional image acquisition mechanism acquires the three-dimensional image of the printing stock again, the image processing device judges again, and when the counting times of the counter reach the preset times, the image processing device outputs the result that the printing stock is unqualified.
4. The substrate condition detecting device according to claim 1, wherein: the printing stock state detection device also comprises an alarm connected with the three-dimensional image acquisition mechanism;
and when the image processing device judges that the printing stock is unqualified, the alarm sends out an alarm signal.
5. The substrate condition detecting device according to claim 4, wherein: the alarm signal is one or more of a light signal, a sound signal and a vibration signal.
6. The substrate condition detecting device according to any one of claims 1 to 5, wherein: the light source is a surface light source, and the light emergent surface of the light source is arranged around the three-dimensional image acquisition mechanism.
7. The substrate condition detecting device according to any one of claims 1 to 5, wherein: the mounting frame is provided with a locking piece, and the locking piece is movably connected with the guide piece.
8. The substrate condition detecting device according to any one of claims 1 to 5, wherein: the three-dimensional image acquisition mechanism is a 3d camera.
9. An elliptical printing machine, comprising: a frame, an elliptical guide rail arranged on the frame, a plurality of printing tables arranged on the elliptical guide rail, a driving mechanism for driving the printing tables to move along the elliptical guide rail, a plurality of printing devices arranged in sequence along the elliptical guide rail, and the printing stock state detection device according to any one of claims 1 to 8, wherein the support is arranged on one side of the printing tables.
10. Elliptical printing machine according to claim 9, characterized in that: the elliptical printing machine further comprises a controller which is respectively connected with the printing device and the three-dimensional image acquisition mechanism, and when the image processing device judges that the printing stock is unqualified, the controller controls the printing device not to print the unqualified printing stock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110444291.3A CN113183626B (en) | 2021-04-23 | 2021-04-23 | Stock state detection device and oval calico printing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110444291.3A CN113183626B (en) | 2021-04-23 | 2021-04-23 | Stock state detection device and oval calico printing machine |
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| CN113183626A true CN113183626A (en) | 2021-07-30 |
| CN113183626B CN113183626B (en) | 2022-11-29 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106556611A (en) * | 2016-12-07 | 2017-04-05 | 江苏唯侓机器人科技有限公司 | Chromatograp defect automatic checkout system and detection method based on machine vision |
| CN207366476U (en) * | 2017-10-24 | 2018-05-15 | 深圳市君豪自动化科技有限公司 | A kind of printing vision inspection apparatus for circular tube shaped stock |
| CN110936703A (en) * | 2019-12-16 | 2020-03-31 | 广州诚鼎机器人有限公司 | Oval calico printing machine cover position mechanism and oval calico printing machine |
| CN111016181A (en) * | 2018-10-09 | 2020-04-17 | 深圳市七号科技有限公司 | Printing monitoring system and method |
| CN211075142U (en) * | 2019-11-08 | 2020-07-24 | 上海伊诺尔实业集团有限公司 | Printed matter detection device |
| CN111532014A (en) * | 2020-05-08 | 2020-08-14 | 深圳诚拓数码设备有限公司 | Automatic nesting printing machine and automatic nesting method |
-
2021
- 2021-04-23 CN CN202110444291.3A patent/CN113183626B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106556611A (en) * | 2016-12-07 | 2017-04-05 | 江苏唯侓机器人科技有限公司 | Chromatograp defect automatic checkout system and detection method based on machine vision |
| CN207366476U (en) * | 2017-10-24 | 2018-05-15 | 深圳市君豪自动化科技有限公司 | A kind of printing vision inspection apparatus for circular tube shaped stock |
| CN111016181A (en) * | 2018-10-09 | 2020-04-17 | 深圳市七号科技有限公司 | Printing monitoring system and method |
| CN211075142U (en) * | 2019-11-08 | 2020-07-24 | 上海伊诺尔实业集团有限公司 | Printed matter detection device |
| CN110936703A (en) * | 2019-12-16 | 2020-03-31 | 广州诚鼎机器人有限公司 | Oval calico printing machine cover position mechanism and oval calico printing machine |
| CN111532014A (en) * | 2020-05-08 | 2020-08-14 | 深圳诚拓数码设备有限公司 | Automatic nesting printing machine and automatic nesting method |
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| CN113183626B (en) | 2022-11-29 |
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