Automatic feeding system of FDM (frequency-division multiplexing) printing equipment

Abstract

The invention provides an automatic feeding system of FDM (frequency-division multiplexing) printing equipment. The automatic feeding system comprises a printing extrusion mechanism, a printing cartridge hopper mounted at the upper part of the printing extrusion mechanism, a photoelectric detection device electrically connected with the printing cartridge hopper to detect a material level of the printing cartridge hopper, a charging cartridge selectively communicated with the printing cartridge hopper and a material bucket, a weighing sensor electrically connected with the charging cartridge to detect material weight in the charging cartridge, and a control system, wherein the control system charges the printing cartridge hopper via the charging cartridge and the charging cartridge via the material bucket based on a material level detection signal emitted by the photoelectric detection device and a material weight signal emitted by the weighing sensor. The automatic feeding system of the FDM printing equipment can continuously and automatically fill a printing material in the charging cartridge into the printing hopper in a printing process, ensures continuity of the printing process, and avoids quality defects of a printing model and time waste arising from printing miss of a printer due to the lack of the printing material and untimely filling of the printing material by an operator.

Description

technical field [0001] The invention relates to the field of casting, in particular to an automatic feeding system for FDM printing equipment. Background technique [0002] With the development of science and technology, the 3D printing technology of FDM printing has become increasingly mature, and various mold manufacturing industries have begun to use this technology to varying degrees, and the foundry industry is no exception. It is widely used, but the supply of printing materials for industrial printing equipment still relies on manual loading and feeding by operators. Therefore, realizing automatic loading and feeding of materials is one of the problems that 3D printers need to solve. [0003] The prior art similar to the present invention in terms of device structure and function realization has the following: [0004] Xi'an Zhongke Maite Electronic Technology Equipment Co., Ltd., the publication number is: CN201310574331.1, the publication date is 2015.05.20, the p...

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Problems solved by technology

[0006] The publication number is CN205058634U, and the publication date is 2016.03.02, which is applied by the Institute of Automation, Heilongjiang Academy of Sciences, and the patent application named "Fused Deposition Industrial 3D Printer Feeding System" only provides a feeding system. However, there is no technical solution on how to achieve continuous feeding. The feeding trolleys connected to the extruder are replaced alternately. After one car is used up, another one is replaced. There is always a pause in the production process, and continuous production cannot be realized.

[0007] Shenzhen No. 7 Technology Co., Ltd., the publication number is: CN105661607A, the publication date is 2016.06.15, and the patent application is named "a food 3D printing device for remote feeding". The overall structure of the inventive device and this Similar to the invention, because it is suitable for food processing, the feeding device has only one remote feeding system, and the delivery pipe is directly connected to the remote feeding system and the nozzle mechanism, and there is no feeding device in the middle, so there is no problem of feeding interruption , but this technical solution is only suitable for viscous fluid materials, not for PLA materials used in FDM equipment

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