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Three-dimensional printing molding device for rubber powder by microwave sintering

A microwave sintering and 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of scorching, high viscosity, insufficient sintering, etc., and achieve the effect of saving powder, uniform fixed-point heating, and uniform powder spreading

Active Publication Date: 2015-07-29
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current SLS technology can only process nylon and nylon modified materials for the processing of polymer products. For rubber products, due to their high viscosity, insufficient sintering or scorching have occurred when laser sintering is used.

Method used

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  • Three-dimensional printing molding device for rubber powder by microwave sintering
  • Three-dimensional printing molding device for rubber powder by microwave sintering
  • Three-dimensional printing molding device for rubber powder by microwave sintering

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Embodiment Construction

[0017] The invention provides a rubber powder microwave sintering 3D printing molding device, such as Figure 1-6 As shown, it includes a heating unit, a powder spreading unit and a control unit; wherein the heating unit includes a microwave knife 1 and a transmission part of the microwave knife, wherein the transmission part of the microwave knife includes an X-axis stepping motor 9, an X-axis driver 10, and an X-axis along the X-axis direction. Shaft screw A11, X-axis nut A12, microwave knife fixing part 13, including Y-axis stepping motor A4, Y-axis driver A5, Y-axis screw A6, Y-axis nut A7, support frame A8 along the Y-axis direction; The unit includes a powder box 2, a powder box transmission part, a working platform and a pressing roller. The powder box 2 is equipped with an arc-shaped baffle 14 and a solenoid valve 15, and the powder box transmission part includes an X-axis common motor 17 along the X-axis direction. , X-axis screw B18, X-axis nut B19, powder box fixing...

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Abstract

The invention discloses a three-dimensional printing molding device for rubber powder by microwave sintering. The three-dimensional printing molding device comprises a heating unit, a powder laying unit and a control unit, wherein the heating unit comprises a microwave coagulator and a microwave coagulator driving part; the powder laying unit comprises a powder box, a powder box driving part, a working platform and a compression roller; the compression roller comprises a roller body and a center shaft supporting frame; the compression roller driving part comprises an ordinary alternating current motor, a gear A, a gear B, a toothed belt, a toothed belt wheel A and a toothed belt wheel B. According to the three-dimensional printing molding device for the rubber powder by the microwave sintering, disclosed by the invention, the rubber powder is heated by microwave, and the uniform powder laying and the timing heating can be realized; the device is reasonable and simple in structure; important driving devices adopt a mode of driving a roller screw by a stepper motor, so that the molding precision is high, and controllable molding of a three-dimensional complex model of the rubber powder is realized. According to the three-dimensional printing molding device for the rubber powder by the microwave sintering, disclosed by the invention, the molding method of the rubber powder is enlarged; meanwhile, novel three-dimensional sintering molding equipment is provided.

Description

technical field [0001] The invention relates to the technical field of three-dimensional printing, in particular to a three-dimensional sintering molding device for rubber powder. Background technique [0002] Powder material laser sintering (SLS) is a widely used rapid prototyping process. Its working principle is: the powder cylinder piston (powder feeding piston) rises during work, and the powder is evenly spread on the model cylinder piston by the powder spreading roller. In the first layer, the computer controls the two-dimensional scanning trajectory of the laser beam according to the prototype's slicing model, and selectively sinters the solid powder material to form a layer of the part. After a layer of powder is completed, the working piston is lowered by one layer thickness, the powder spreading system lays new powder, and the laser beam is controlled to scan and sinter the new layer. This cycle goes on and on and layers are superimposed to obtain three-dimensiona...

Claims

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Application Information

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IPC IPC(8): B29C67/04B33Y30/00
Inventor 杨卫民迟百宏谭晶丁玉梅
Owner BEIJING UNIV OF CHEM TECH
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