High dimensional model 3D printer and 3D printing method

Abstract

The invention discloses a high dimensional model 3D printer comprising a frame, a printing head, a moving bracket component and a loading tray. The moving bracket component is installed at the upper part of the frame, and can be used for driving the printing head to move up and down or right and left; a horizontal stiffening connecting rod is connected between the middle parts of upright columns of the frame, and the part, located below the stiffening connecting rod, of the frame is provided with a liftable bracket which is provided with a rotary table through a bearing pedestal; the rotary table is driven to rotate by a stepping motor installed on the liftable bracket, and the upright columns are provided with an upper limit switch and a lower limit switch for limiting the movement of theliftable bracket; and the loading tray is hinged to the rotary table, and can be driven by a servo motor to swing. The high dimensional model 3D printer is compact in structure, and the printing of ahigh dimensional product model can be finished. Specifically, through design of the stable frame, the printing head and the loading tray can be separately moved upwards and downwards, and the longitudinal printing space can be maximized; and the manufacturing requirement of a large-size product model is met.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a high-size model 3D printer and a 3D printing method. Background technique [0002] 3D printing is a technology based on digital model files, using powdered metal, plastic and other bondable materials to construct objects through layer-by-layer printing, and finally makes the design blueprint in smart electronic devices become into real equipment. 3D printers can be used to print out molds, toys, and machine parts. [0003] Existing 3D printers generally include a printing head, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism, and a carrying chassis; the printing head can be driven left, right, up, down, forward, and backward through the X-axis moving mechanism, Y-axis moving mechanism, and Z-axis moving mechanism. According to the design program, the raw materials are printed out to be placed on the carrier chassis. [0004] For example, ...

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Problems solved by technology

[0006] Although the technical solutions disclosed in the above two patents can solve the corresponding technical problems, they still cannot meet the needs. For example, for a model with a high size, due to the structural limitations of the rack, the height of the model can only be within a certain range. If the height of the frame is increased, the print head bracket is prone to shaking during the movement process at the end of printing, the printing error is large, the printing accuracy is low, and defective products are prone to appear. It can only adapt to the size within a limited height. Product printing, the scope of application is narrow

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