Infrared constant temperature system in internal chamber of 3D printer

Abstract

The invention belongs to the technical field of 3D printers, and particularly provides an infrared constant temperature system in an internal chamber of a 3D printer. According to the infrared constant temperature system, the basic characteristics of electromagnetic infrared waves that energy is transferred through radiation, medium conduction is not needed, heat efficiency is high, heat inertia is small, and the internal and external portions of an article can be heated at high efficiency and high uniformity at the same time are utilized, and the heating range is limited in the article and the local environment around the article. The adverse defects that air convection conduction is adopted in an existing heating method, and consequently heating efficiency is low, heating is not even, and energy is wasted are avoided, and the constant temperature in the internal chamber of the 3D printer is increased. The defects of warping, unsticking, layering, fracturing and the like of the article are avoided, the printing precision of the printer is improved, and the printing success rate of the printer is increased. The infrared constant temperature system is especially suitable for the printing and manufacturing needs of high-temperature special engineering plastic products.

Description

technical field [0001] The invention belongs to the technical field of 3D printers, in particular to an infrared constant temperature system for an inner chamber of a 3D printer. Background technique [0002] 3D printing technology first appeared in the 1980s. It is a technology that uses computer control, relies on digital models, and uses liquid resin, filamentous plastic or metal powder as raw materials to manufacture objects by layer-by-layer accumulation. . Based on different molding principles, the current mainstream 3D printing manufacturing technologies mainly include: hot melt deposition molding (FDM) or thermal fusion filament manufacturing (FFF), stereolithography (SLA), laser powder sintering (SLS) and three-dimensional glue molding (3DP), etc. With the development of 3D printing technology, it has transitioned from the early production of product prototypes and model molds to the direct production and processing of products in different fields such as engineer...

AI Technical Summary

Problems solved by technology

For example, the maximum working temperature of stepper motors used in general 3D printers is about 50°C to 55°C, and when the printing material is polyaryletherketone high-temperature materials, the temperature of the internal chamber needs to be kept above 60°C. It means that the stepper motor will not work properly, which will reduce the printing accuracy and even damage the equipment

Even if certain heat insulation measures are taken, such as installing heat insulation curtains, etc., it is still impossible to completely insulate the motor and belt

Long-term high-temperature work will not guarantee the quality of the object

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