A real-time curved surface inkjet printing system and method
An inkjet printing, curved surface technology, applied in printing devices, general control systems, control/regulation systems, etc., can solve the problems of not mentioning the number of sensors, positioning methods, inability to locate the plane where the nozzle is located, and inability to realize real-time printing, etc. To achieve the effect of simplifying hardware configuration and operation steps, small action error, and improving printing accuracy
Active Publication Date: 2021-07-30
SHANGHAI UNIV +1
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Problems solved by technology
In this way, since a two-dimensional contour scanner is used for scanning, the cost is high, and real-time printing cannot be realized
[0004] Craig Orr et al. disclosed a device and method for printing three-dimensional objects (application publication date: July 09, 2014, application publication number: CN103909743A). This technology also realizes inkjet printing on curved surfaces, but it does not mention The number of sensors, positioning methods, etc., how the sensors used can ensure that the nozzle is perpendicular to the surface to be printed is not specified, and the sensors used are optical sensors including laser sensors. Since the number of sensors is not specified, if one or two sensors are used , can only feed back the distance information of one or two points, and cannot locate the plane where the nozzle is located
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[0042] In view of the deficiencies in the prior art, the inventor of this case has been able to propose the technical solution of the present invention after long-term research and extensive practice. The technical solution, its implementation process and principles will be further explained as follows.
[0043] An aspect of an embodiment of the present invention provides a real-time curved surface inkjet printing system, which includes:
[0044] An inkjet device, which includes a nozzle, used to eject ink to a curved surface to be printed;
[0045] A sensor, which is connected to the inkjet device, is used to sense and feed back the distance information between the current nozzle and the curved surface to be printed;
[0046] A mechanical arm, which has six degrees of freedom, is used to carry the nozzle and the sensor, and feed back the current posture information of the nozzle in real time, so that the nozzle can move to the next position with a suitable posture for inkjet ...
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The invention discloses a real-time curved surface inkjet printing system and method. The system includes: an inkjet device, which includes a nozzle, for ejecting ink to the curved surface to be printed; a sensor, connected to the inkjet device, for sensing and feeding back the distance information between the current nozzle and the curved surface to be printed; A mechanical arm, which has six degrees of freedom, is used to carry the nozzle and the sensor, and feed back the current posture information of the nozzle in real time, so that the nozzle can move to the next position with a suitable posture for inkjet printing; and the control device, It is respectively connected with the sensor and the mechanical arm, and is used to receive the feedback information of the sensor and the mechanical arm, calculate the movement path and the attitude adjustment value of the nozzle in real time, and control the nozzle to spray ink to print a specified graphic on the curved surface to be printed . The invention can realize real-time printing, reduce cost, simplify hardware configuration and operation steps, and have wide application prospects.
Description
technical field [0001] The present invention relates to a real-time curved surface inkjet printing system and method, more specifically, the present invention relates to a system and method for real-time printing on a three-dimensional curved surface by means of six-axis inkjet printing, which belongs to the three-dimensional printing technology field. Background technique [0002] Traditional curved surface printing technologies include screen printing, pad printing, letterpress offset printing, etc., which mainly print on simple and regular curved surfaces, and do not have the ability to print on generally irregular curved surfaces in space, and have problems such as low efficiency, complicated process, and pollution. . Curved surface inkjet printing is a new type of curved surface printing technology, which has unique advantages in curved surface printing. With the increasing market demand for personalized three-dimensional objects, curved surface inkjet printing has bec...
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IPC IPC(8): B41J3/407B41J29/393
CPCB41J3/4073B41J29/393B25J9/1666B25J9/1679G05B2219/45186
Inventor 谢永林魏克香王文浩
Owner SHANGHAI UNIV