Model cooling system of 3D printer

Abstract

The invention discloses a model cooling system of a 3D printer. The model cooling system comprises a nozzle assembly and a fan, the nozzle assembly comprises a nozzle, a wire inlet throat pipe and a nozzle heating block, a mounting plate is arranged on the wire inlet throat pipe, an air inlet is formed in the mounting plate, an air heating block is arranged on one side of the nozzle, an air channel is arranged inside the air heating block, and one end of the air channel is blocked by a plug; and an air mouth is formed in one end of the air heating block, an air outlet communicating with the air channel is formed in the air mouth, the air heating block is fixed to the mounting plate through the air inlet throat pipe, the air inlet throat pipe makes the air inlet communicate with the air channel, a heating device and a temperature sensor are further arranged on the air heating block, the heating device and the temperature sensor are electrically connected with a temperature controller, the fan is arranged outside the box of the 3D printer, and the air outlet end of the fan is connected with the air inlet through a pipe. According to the model cooling system, the cooling effect of a model can be improved, the quality of printing is improved, the temperature of the air flow blown out is controlled, and the model cooling system is suitable for printing various types of consumables.

Description

technical field [0001] The invention relates to the technical field of 3D printers, in particular to a cooling system for a 3D printer model. Background technique [0002] Most of the 3D printers currently on the market have a simple model cooling system, just a fan, which can only blow a single piece of air. In fact, the air near the printer head is blown to the model through the fan, which belongs to internal circulation, and the temperature is uncontrollable. The result is that only ordinary materials such as traditional PLA and ABS can be printed. For materials with high printing temperature such as PETG and PC, the cooling fan will blow out air due to the high internal temperature of the printer box 2 (generally between 50°C and 150°C). Too hot to be effective. For PEEK, an ultra-high temperature (400-500°C) semi-crystalline material that requires secondary annealing, it cannot be printed. Contents of the invention [0003] In order to solve the deficiencies of the ...

AI Technical Summary

Problems solved by technology

[0002] Most of the 3D printers currently on the market have a simple model cooling system structure, just a fan, which can only blow a single piece of wind. In fact, the air near the printer head is blown to the model through the fan, which belongs to internal circulation, and the temperature is uncontrollable.

The result is that only ordinary materials such as traditional PLA and ABS can be printed. For materials with high printing temperature such as PETG and PC, the cooling fan will blow out air due to the high internal temperature of the printer box 2 (generally between 50°C and 150°C). too hot, the effect is not obvious

For PEEK, an ultra-high temperature (400-500°C) semi-crystalline material that requires secondary annealing, it cannot be printed

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