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SLS rapid prototyping double-roll powder spreading device

A powder spreading device and fast technology, which is applied in the directions of additive manufacturing, processing manufacturing, solid material additive processing, etc., can solve the problem of not having powder spreading function, etc., to improve printing efficiency, facilitate powder supply, and facilitate disassembly and assembly. Effect

Pending Publication Date: 2018-08-14
ZHEJIANG IND POLYTECHNIC COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scraper and the moving hopper without compaction function do not have complete powder laying function

Method used

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  • SLS rapid prototyping double-roll powder spreading device
  • SLS rapid prototyping double-roll powder spreading device
  • SLS rapid prototyping double-roll powder spreading device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 , image 3 , Figure 6 As shown, a SLS rapid prototyping double-roller powder spreading device includes a support frame 1, a mounting bracket 11 is installed on the inner bottom wall of the support frame 1, and a hopper motor 12 and a rotating shaft are respectively installed on the mounting bracket 11. 13. The motor shaft of the hopper motor 12 is connected to the rotating shaft 13, a sprocket 14 is installed on the rotating shaft 13, a chain 15 is installed on the sprocket 14, a hopper 16 is installed on the chain 15, and the hopper 16 links to each other with the powder spreading roller support 21, and the powder spreading roller motor 22, the first powder spreading roller 23 and the second powder spreading roller 24 are respectively installed on the powder spreading roller support 21, and the motor shaft of the powder spreading roller motor 22 Connect with the first powder spreading roller 23 and the second powder spreading roller 24 respectively ...

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PUM

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Abstract

The invention discloses an SLS rapid prototyping double-roll powder spreading device comprising a support frame. A mounting bracket is provided with a hopper motor and a rotating shaft separately, anda motor shaft of the hopper motor is connected to the rotating shaft which is provided with a chain wheel; the chain wheel is provided with a chain which is provided with a hopper, and a motor shaftof a powder spreading roll motor is connected to a first powder spreading roll and a second powder spreading roll through conveyor belts separately; a powder spreading roll bracket between the first powder spreading roll and the second powder spreading roll is provided with a powder leading cutter; the inside bottom wall of the support frame is provided with a powder spreading port, and the insidebottom wall of the support frame above the powder spreading port is provided with a heating device; a forming device is arranged below the powder spreading port, and the powder spreading port can beembedded into the upper end of the forming device for powder spreading; and the hopper is connected to a powder feeding device. According to the SLS rapid prototyping double-roll powder spreading device, the bidirectional powder feeding function can be achieved in the moving process of the powder spreading device, and the device in which the movable hopper and the powder spreading rolls are combined is applied, so that powder layers are compacted properly, and the printing effect is better.

Description

technical field [0001] The invention relates to an SLS rapid prototyping double-roller powder spreading device. Background technique [0002] SLS technology is a kind of 3D printing technology, which has many advantages in the field of mold making and prototyping. The prototypes of large-sized parts produced by it can be widely used in automobiles, aviation, aerospace and other fields after casting, and solve the problem of rapid casting of complex parts in my country, which can greatly reduce costs and promote rapid prototyping technology to serve product innovation. [0003] At present, there are three types of widely used powder spreading equipment: drum type, scraper type and moving hopper type. [0004] In the roller-type powder spreading, the roller performs a combined motion of rotation and translation, and uses the forward thrust component of the powder and the fluidity of the powder to push away the excess powder, and uses the arc shape to flatten the powder that h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/153B29C64/218B29C64/295B33Y30/00
CPCB29C64/153B29C64/218B29C64/295B33Y30/00
Inventor 赵军
Owner ZHEJIANG IND POLYTECHNIC COLLEGE
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