Nozzle calibration device of 3D printer

Abstract

The invention belongs to the technical field of 3D printing equipment, and particularly relates to a nozzle calibration device of a 3D printer. A calibration assembly comprises a clamping assembly anda shell, and the clamping assembly is movably mounted on a Y-axis moving seat; a lower electrode plate is fixedly installed at the upper end of the clamping assembly, and a plurality of sets of guidecolumns are fixedly installed at the upper end of the clamping assembly and distributed in an annular array mode; the upper end of the shell is of an open structure, and a nozzle assembly can be inserted into the shell; the other ends of the guide columns penetrate through a bottom plate of the shell; the guide columns are further sleeved with springs, and the springs are located between the bottom plate of the shell and the clamping assembly; and a fifth motor is arranged in the shell. The initial distance between an upper electrode plate and a lower electrode plate is set by adjusting the fifth motor, so that the distances of different raw materials extruded from the nozzle assembly are controlled, and the raw materials can be bonded firmly when falling onto a printing bed.

Description

technical field [0001] The invention belongs to the technical field of 3D printing equipment, and in particular relates to a nozzle calibration device for a 3D printer. Background technique [0002] 3D printer is a cumulative manufacturing technology, that is, a machine of rapid prototyping technology. It is based on a digital model file, using special wax, powdered metal or plastic and other bondable materials to print layer by layer. Bonding materials to create three-dimensional objects. The principle of a 3D printer is to put data and raw materials into the 3D printer, and the machine will build the product layer by layer according to the program. [0003] Before printing, the 3D printer needs to make the printing bed as horizontal as possible. Even a slight inclination will cause the distance between the nozzle of the 3D printer and the printing bed to change, which means that in some places the nozzle is too far away from the printing bed. The bonding is not strong, a...

AI Technical Summary

Problems solved by technology

[0003] Before printing, the 3D printer needs to make the printing bed as horizontal as possible. Even a slight inclination will cause the distance between the nozzle of the 3D printer and the printing bed to change, which means that in some places the nozzle is too far away from the printing bed. The bonding is not strong, and in other places the nozzle is too close to the print bed, causing the print head to clog;

This method requires a high level of experience of the operator, which is not conducive to popularization

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