Layer thickness adjusting structure based on 3D printing and 3D printing device thereof

Abstract

The layer thickness adjusting structure based on 3D printing comprises a linear motor and further comprises a fixing sleeve, a connecting block, a printing head and a sliding sleeve, the fixing sleeve is fixed to the movable end of the linear motor, the connecting block is inserted into the fixing sleeve, an X-axis moving module is fixed to the outer wall of the connecting block, and the printing head is fixed to the movable end of the X-axis moving module; a sliding sleeve is fixed to the top of the fixing sleeve. According to the layer thickness adjusting structure based on 3D printing, people can conveniently and rapidly disassemble and assemble the X-axis moving module, people can conveniently conduct maintenance work, compared with a traditional hot bed, a hot bed module arranged on the provided 3D printing device can greatly improve the heat dissipation speed and quality of the hot bed, and the heat dissipation efficiency of the hot bed is greatly improved. And the model and the hot bed module can be conveniently and quickly separated during demolding, so that the model does not need to be manually shoveled down from a hot bed by using a tool, the mold taking efficiency is improved, and the probability that the model and the hot bed module are damaged in the mold taking process can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of 3D printers, in particular to a layer thickness adjustment structure based on 3D printing and a 3D printing device thereof. Background technique [0002] In the 3D printing process, the 3D model needs to be sliced ​​by slicing software first, and then 3D printing can be done by the printer according to the slice, and when slicing, the thickness of the slice can be adjusted according to the printing progress, and the thickness of the slice It is called layer thickness. Since 3D printing is layer-by-layer printing, the outer surface of the model after printing is stepped layer by layer. Therefore, the thinner the slice, the higher the accuracy and the less obvious the step shape. The adjustment of layer thickness requires Adjust the diameter of the nozzle filament, and adjust the height of the Z-axis each time. The existing 3D printing mechanism Z-axis usually uses a linear motor to drive up and down, and i...

AI Technical Summary

Problems solved by technology

[0002] In the process of 3D printing, it is first necessary to slice the 3D model through slicing software, and then 3D printing can be performed through the printer according to the slicing, and when slicing, the thickness of the slice can be adjusted according to the printing progress, and the thickness of the slice It is called the layer thickness. Since 3D printing is printed layer by layer, the outer surface of the printed model is stepped in layers. Therefore, the thinner the slice, the higher the accuracy and the less obvious the step shape. The adjustment of the layer thickness requires Adjust the wire diameter of the nozzle and adjust the height of the Z-axis each time. The Z-axis of the existing 3D printing mechanism is usually driven by a linear motor for lifting, and among the two linear motors, a linear motor for the X-axis will be fixed. Horizontal movement, the nozzle is fixed on the moving end of the X-axis, but the X-axis on the existing 3D printers is usually connected to the linear motor of the Z-axis by screws, and the X-axis linear motor needs to be overhauled It is not convenient for people to disassemble the X-axis;

[0003] Moreover, the existing 3D printer model is formed by printing on a hot bed, and the model is prone to curling during the printing process, so the hot bed is used for support, and the hot bed needs to be heated during the printing process , to ensure that the temperature of the hot bed matches the temperature when the model is printed out. When printing high models, the hot bed needs to stop heating to cool down after printing to a higher height. The existing hot bed usually adopts natural cooling The mode of cooling is carried out until the model can be peeled off after cooling, but the natural cooling speed is slow, the heat dissipation efficiency is slow, and the existing hot bed is very prone to strong bonding between the model and the hot bed when the mold is taken after printing. Phenomenon, it is very inconvenient for people to take the model, usually need to use auxiliary tools to shovel the model, and the process of shoveling is easy to cause damage to the model and the hot bed

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