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SLS (selective laser sintering) double-roller powder spreading device

A powder spreading device and laser sintering technology, which is applied in the direction of improving process efficiency and energy efficiency, and can solve problems such as limited equipment space saving, complex device structure, and pollution

Inactive Publication Date: 2011-06-01
湖南美纳科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These designs save the space of the original equipment to a certain extent, and the powder supply process is more accurate and clean, but the structure of these devices is still relatively complicated, requiring a large number of transmission and control devices, which is not conducive to process control and equipment reliability. The powder spreading process is still carried out in an open environment, and there will still be powder spillage and pollution in the working environment; a powder overflow tank needs to be installed on both sides of the workbench for powder recovery, and the space saving of equipment is limited

Method used

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  • SLS (selective laser sintering) double-roller powder spreading device
  • SLS (selective laser sintering) double-roller powder spreading device

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Embodiment Construction

[0009] As shown in the accompanying drawings, the present invention includes a powder storage cylinder (3), two parallel powder spreading rollers: a left powder spreading roller (1) and a right powder spreading roller (2), and the powder spreading device and the king's table (4 ) to form a closed system, the powder storage cylinder (3) is a cylinder body with an open bottom, fixed on two parallel powder spreading rollers (1 and 2), and can move synchronously with the powder spreading rollers, and the powder spreading powder (5) is stored In the closed system formed by the device and the work surface (4). The double-roller powder spreading device moves from the left side of the working cylinder (6) to the right side of the working cylinder (6), the right powder spreading roller (2) compacts the upper layer of powder, and the left powder spreading roller (1) compresses the powder spreading powder ( 5) Spread evenly on the work surface (4). The powder spreading device runs to th...

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Abstract

The invention provides an SLS (selective laser sintering) double-roller powder spreading device which comprises a worktable and a powder spreading device, wherein the powder spreading device is arranged on the worktable; the SLS double-roller powder spreading device is characterized in that the powder spreading device comprises a powder storage cylinder and two parallel powder spreading rollers, namely, a left powder spreading roller and a right powder spreading roller; and the powder spreading device and the worktable form a closed system. The double-roller powder spreading device is of a simple structure and convenient to control, and can effectively save the space of SLS equipment, reduce the size, complexity and cost of the equipment, improve the equipment reliability and ensure a clean working environment in the equipment.

Description

technical field [0001] The invention relates to a selective laser sintering device, in particular to a selective laser sintering double-roller powder spreading device. Background technique [0002] Selective Laser Sintering (SLS) technology adopts the principle of layered manufacturing and uses solid powder as raw material to directly convert CAD models into entities. According to factors such as material properties, part structure, process requirements, etc., the powder spreading device of SLS equipment evenly spreads a thin layer of powder on the workbench for sintering of a cross-sectional shape, the thickness, density, and uniformity of the powder layer, etc. All directly affect the sintering quality. [0003] In the traditional SLS process, the powder feeding cylinder of the equipment sends the powder material to the working table, and the powder spreading roller spreads the powder evenly on the working table, and after the powder spreading is completed, the excess pow...

Claims

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Application Information

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IPC IPC(8): B22F3/105
CPCY02P10/25
Inventor 许小曙邓美军赵太传
Owner 湖南美纳科技有限公司
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