Powder filter device

Abstract

The invention discloses a powder filter device for filtering the flying dust powder when a stereo forming mechanism runs. The powder filter device comprises a shell, a powder filter element, a reclaiming member and an air suction device, wherein the shell is provided with a suction port from which the dust powder is sucked; the powder filter element is arranged in the shell and used for partitioning the interior of the shell into a first space and a second space, wherein the suction port of the shell is communicated with the second space; the reclaiming member is arranged in the second space;and the air suction device is used for making the first space form a negative pressure state, guiding the dust powder sucked from the suction port into the second space, filtering the dust powder through the powder filter element and reclaiming the blocked powder in the reclaiming member.

Description

technical field [0001] The invention relates to a powder filtering device, especially a powder filtering device suitable for a three-dimensional molding system. Background technique [0002] Rapid prototyping technology (RP technology for short) is developed based on the concept of building a pyramid layer by layer. Its main technical feature is the rapidity of forming, and it can be molded without any tools, molds and fixtures. Automatically and quickly transform the design scheme of any complex shape into a 3D solid model. [0003] At present, RP technology has developed a method of using jet printing technology combined with vehicle precision positioning technology to produce 3D solid models. The production method is to first lay a layer of powder on the top of the vehicle and use inkjet printing technology to print on part of the powder. The high-viscosity adhesive liquid makes the adhesive liquid and powder adhere and solidify, and the 3D solid model can be completed b...

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a powder filter device, which can avoid the pollution of the working environment caused by the dust raised by the existing floor-standing three-dimensional molding device during powder spreading, printing and taking out the molded product, so that it does not need to rely on manpower to frequently Carry out the work of vacuuming and cleaning and maintenance, and at the same time overcome the defects such as damage to the molded product or damage to the components of the three-dimensional molding device due to carelessness in the cleaning process, resulting in the failure of the normal operation of the three-dimensional molding device and waste of manpower and time.

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