Precise compact type 3D printer powder supply mechanism and transmission method

A 3D printer, a compact technology, applied in the field of the powder supply mechanism of the printer, can solve the problems of complex structure and large volume of the powder supply mechanism, and achieve the effect of meeting the transmission accuracy requirements, reducing the layout space, and ensuring the vertical accuracy.

Active Publication Date: 2017-05-10
XIAMEN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main problem to be solved is that in order to ensure the linear motion accuracy of the existing printer powder supply mechanism, the structure of the powder supply mechanism is complicated and the volume is large.

Method used

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  • Precise compact type 3D printer powder supply mechanism and transmission method
  • Precise compact type 3D printer powder supply mechanism and transmission method
  • Precise compact type 3D printer powder supply mechanism and transmission method

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] The main problem to be solved by the present invention is to change the existing transmission structure in which the screw rod and the guide rail cooperate, simplify the transmission structure and reduce the volume of the powder supply mechanism. Of course, on the basis of solving the problem, it is necessary to ensure the linear motion accuracy of the powder supply mechanism before it can be applied to 3D printer equipment. Among them, according to the characteristics of metal 3D printer molding, the distance of each feeding is required to be 0.02mm, and the repeat error is below 0.005mm. Therefore, the transmission parts connected to the workbench must have high linear motion distance accuracy and have controllable High performance and smooth movement.

[0031] Please refer to figure 1 and figure 2 , a precision compact 3...

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PUM

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Abstract

The invention provides a precise compact type 3D printer powder supply mechanism and a transmission method. The precise compact type 3D printer powder supply mechanism comprises a lower cylinder body, a spline assembly, a lead screw and a motor, wherein a supporting part is arranged above the lower cylinder body, the spline assembly comprises a spline shaft and a spline sleeve, the spline sleeve is fixed to the bottom surface of the supporting part, the spline shaft can be inserted into the spline sleeve in an axial motion mode, and one end of the spline shaft extends out of the lower cylinder body. The lead screw comprises a screw rod and a lead screw nut, wherein the lead screw nut is arranged in the lower cylinder body and is fixed to the bottom end of the spline shaft, the screw rod is in threaded connection with the lead screw nut and extends into the spline shaft, and the screw rod is connected with the servo motor. The powder supply mechanism has high linear motion precision through connection and transmission between the lead screw and the spline assembly and meets the transmission precision demand of a 3D printer. In addition, the screw rod extends into the spline assembly, and the powder supply mechanism has the advantage that an arrangement space of a transmission structure is small.

Description

technical field [0001] The invention relates to the technical field of printer powder supply mechanism, in particular to a precise and compact 3D printer powder supply mechanism and a transmission method. Background technique [0002] 3D printer, also known as three-dimensional printer, is a kind of accumulative manufacturing technology, that is, a machine of rapid prototyping technology. It uses bondable materials such as special waxes, powdered metals or plastics to create three-dimensional objects by printing layers of bonded materials. During the printing process of 3D printers, the transmission method of screw drive and guide rail slider is usually used. This type of structure needs to install a series of guide rails and slider mechanisms, which is suitable for large-scale equipment and has enough space to set up the transmission structure. Therefore, it is also difficult for some equipment with small size and insufficient space to use the transmission structure of sc...

Claims

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Application Information

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IPC IPC(8): B22F3/105B29C67/00B29C31/04B33Y30/00
CPCB22F3/003B29C31/04B33Y30/00B22F10/10B22F10/00B22F12/222B22F10/30B22F12/50B22F10/20B22F12/30Y02P10/25
Inventor 葛晓宏郑俊何敬赖桂文李辉黄理阳丁培强刘丽娟
Owner XIAMEN UNIV OF TECH
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