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Continuous component changing feeding and discharging system for light curing 3D printing

A 3D printing and discharging system technology, applied in 3D object support structure, processing material handling, additive manufacturing, etc., can solve the problems of single layer-by-layer printing, no controllable adjustment of light-curing glue components, etc.

Active Publication Date: 2020-05-19
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the light-curing 3D printing technology, due to difficult factors such as the raw material being a fluid liquid, the controllable adjustment of the light-curing glue composition in the 3D printing process has not been realized, and only a single material can be printed layer by layer.

Method used

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  • Continuous component changing feeding and discharging system for light curing 3D printing
  • Continuous component changing feeding and discharging system for light curing 3D printing
  • Continuous component changing feeding and discharging system for light curing 3D printing

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Implementation example 1: respectively fill 200ml of photosensitive resin mainly composed of urethane acrylate dyed with primary color, red, blue, and green dyes into four 250mL syringes, and the syringes are treated with coated light-shielding materials; Form the motorized injector on the feeding motor. In order to make the mixing in the working tank even, the outlet of each syringe is equipped with a one-in and four-out adapter. The four outlets of the adapter are connected to the four feed ports of the working tank through hoses, and the connected feed ports are selected. The position makes the spacing evenly spaced. The outlet of the working tank is connected to the collector through a pipeline, and the collector is composed of two 500mL withdrawable syringes installed on the discharge motor. Set up the control program of the feeding motor and the discharging motor. After printing starts, first add a certain color resin to the working tank through the feed port to...

Embodiment 2

[0044] Implementation example 2: Fill 200ml of photosensitive resin mainly composed of urethane acrylate dyed with primary color, red, blue and green dyes into four 250mL syringes respectively, and the syringes are treated with coating light-shielding material. The syringe is additionally installed on the feeding motor to form a motor type injector. In order to make the mixing in the working tank uniform, the outlet of each syringe is connected to the premixing chamber, and the outlet of the premixing chamber is connected to the feeding port of the working tank through a hose, and the position of the connected feeding port is selected to make the interval between them uniform distributed. The outlet of the working tank is connected to the collector through a pipeline, and the collector is composed of two 500mL withdrawable syringes installed on the discharge motor. Set the control program for the feeding motor and the discharging motor. After printing starts, first add a cer...

Embodiment 3

[0045] Implementation Example 3: Put 500ml of flexible photosensitive resin and 500ml of rigid photosensitive resin into two 1L light-shielding storage tanks respectively, and extract the photosensitive resin from the storage tank to the premixing chamber through the feeding program control pump, and the premixing chamber The outlet of the tank is connected to the feed port of the working tank through an inlet and multiple outlet joints and hoses, and the positions of the connected feed ports are selected to make them evenly distributed. The outlet of the working tank is connected to the collector through a hose. The collector includes a discharge program-controlled pump and a collection tank. The inlet of the discharge program-controlled pump is connected to the hose at the outlet of the working tank, and the outlet of the discharge program-controlled pump is connected to 2L collection tank. Set up the control program of the feeding and discharging program-controlled pumps. ...

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Abstract

The invention discloses a continuous component changing feeding and discharging system for light curing 3D printing. The system involves a PC machine, a first controller, a second controller, a feeding device, a feeding tube, a working groove, a discharging tube, and a material collecting device, wherein a plurality of feeding openings are formed on one side wall of the working groove, a pluralityof discharging openings are formed in the opposite the other side wall of the working groove, the feeding device comprises a plurality of sample injectors, the first control end of the PC machine isconnected with the first controller, the second control end of the PC machine is connected with the second controller, the first controller is electrically connected with the plurality of sample injectors in the feeding device, each sample injector is connected with each feeding opening of the working groove through the feeding tube, and each discharging opening of the working groove is connectedwith material inlets of the material collecting device through the discharging tube; and the second controller is electrically connected to the material collecting device. According to the continuouscomponent changing feeding and discharging system, components of feeding are regulated and controlled in the feeding process, so that the controllable change of the components in the light curing direction of a 3D printing product is realized, and the diversification and the customizability of product functions can be realized through the change of the components.

Description

technical field [0001] The invention belongs to the technical field of photocuring 3D printing and molding, and in particular relates to a continuous variable component feeding and discharging system for photocuring 3D printing. Background technique [0002] 3D printing is a technology that manufactures three-dimensional objects by layer-by-layer under computer control, and is widely used in rapid prototyping and additive manufacturing. The term 3D printing originally referred to the process of depositing a binder material layer by layer onto a powder bed with an inkjet printer head. 3D printing today covers a wider variety of additive manufacturing technologies, with US and global technical standards using additive manufacturing as the official term. 3D printing includes many different technologies such as stereolithography or fused deposition modeling. Therefore, unlike the subtractive manufacturing of traditional machining processes, 3D printing or additive manufacturin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/386B29C64/336B29C64/343B29B7/10B29B7/16B29B7/74B33Y50/00
CPCB29C64/386B29C64/336B29C64/343B29B7/10B29B7/16B29B7/74B33Y50/00
Inventor 徐翔星包建春陈高宇王永凯刘晓宇何琪倩
Owner NANJING NORMAL UNIVERSITY