Detection device and detection method for blocking of fused deposition type 3D printing machine spray head

Abstract

The invention provides a detection device and a detection method for blocking of a fused deposition type 3D printing machine spray head. The detection method comprises the steps that correlation signals with preset time intervals, generated through a first photoelectric correlation sensor and a second photoelectric correlation sensor are sent to a 3D printing machine; if extrusion of an extruder is normal, the spray head is not blocked, fan blades rotate ceaselessly, the photoelectric correlation sensors repeatedly generate the correlation signals with preset time intervals, the correlation signals are sent to the 3D printing machine, and the 3D printing machine performs normal printing; and if the spray head is blocked, the extruder cannot extrude 3D printing supplies, the 3D printing supplies cannot move, a worm cannot be driven to rotate, the fan blades stop rotating, the photoelectric correlation sensors continuously receive signals or cannot receive signals, if the photoelectric correlation sensors continuously receive signals or cannot receive signals after preset time, an alarm is given, the 3D printing machine is temporarily stopped, and the whether the spray head is blocked or not is detected.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a detection device and detection method for nozzle clogging of a fused deposition type 3D printer. Background technique [0002] Fused deposition printing is currently the most widely used 3D printing method on the market. The 3D printing method is to melt the thermoplastic material by heating it at a temperature slightly higher than the melting point of the printing material, extrude it from the nozzle, and print the finished product layer by layer under computer control. [0003] During 3D printing, it is easy for the printing material to block the nozzle of the printer, resulting in failure to print normally. The usual way is to stop printing and manually clean the printer nozzle, which is time-consuming and labor-intensive, which affects printing efficiency. [0004] At present, there are automatic detection methods such as application number 2018102300530, a 3D printer clogging ...

AI Technical Summary

Problems solved by technology

This solution needs to be equipped with corresponding printing materials, which is an improvement on the printing materials and the printing materials required for 3D printing. However, its scope of application is narrow and the printing materials are limited, so it is not suitable for wide promotion.

It is easy to cause some technical fields that have special requirements for printing materials due to the limitation of printing materials. This solution cannot be applied to avoid nozzle clogging

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