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A feeding system for a multi-nozzle biological 3D printer

A 3D printer and feeding system technology, applied in the field of 3D printing, can solve problems such as difficult and accurate feeding, and achieve the effects of continuous and stable feeding, rapid switching of feeding, and simple feeding control

Active Publication Date: 2019-06-25
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing multi-nozzle biological 3D printers are difficult to achieve accurate feeding after the switching of the feeding system, and it is difficult to control the air pressure value in the feeding system and the real-time start and stop of the feeding system through the host computer

Method used

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  • A feeding system for a multi-nozzle biological 3D printer
  • A feeding system for a multi-nozzle biological 3D printer

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Embodiment Construction

[0022] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but the content protected by the present invention is not limited to the following description.

[0023] Such as figure 1 As shown, a feed system for a multi-nozzle biological 3D printer includes a pressure source 1, an air filter 2, a decompression safety valve 3, a first pressure gauge 4, a dryer 5, a proportional pressure regulating valve 6, a second Pressure gauge 7, three-position five-way solenoid valve 8, first two-position five-way solenoid valve 9, No. 1-4 sterile filter 10, 11, 15, 16, second two-position five-way solenoid valve 14, 1- No. 4 extrusion nozzles 12, 13, 17, 18 and controller 19; the pressure source 1 is connected to the proportional pressure regulating valve 6 through the air filter 2, the decompression safety valve 3 and the drier 5 successively, and the proportional pressure regulating valve The output end of the valve...

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Abstract

The invention discloses a material supply system of a multi-nozzle bio-3D printing machine. The material supply system comprises a pressure source, an air filter, a pressure relief valve, a first pressure gauge, a dryer, a proportional pressure regulating valve, a second pressure gauge, a three-position five-way electromagnetic valve, a first two-position five-way electromagnetic valve, germfree filters from 1 to 4, a second two-position five-way electromagnetic valve, extrusion nozzles from 1 to 4, and a controller. The material supply system can realize real-time control over and quick response to extrusion of various materials, is applicable to extrusion molding multi-nozzle bio-3D printing equipment, and cannot be limited by any material and process. The material supply system is simple and stable in material supply control and high in material supplying and switching speed, can realize switching of nozzles on an upper machine, and can supply the materials continuously and stably. The material supply system can be widely applied to the 3D printing machine capable of printing various liquid materials.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a feeding system of a multi-nozzle biological 3D printer. Background technique [0002] In real life, when encountering serious diseases such as infection, tumor, trauma, etc., which cause tissue damage such as bone and skin, autologous tissue transplantation and allogeneic tissue transplantation are generally the most commonly used clinically. However, autologous tissue transplantation is prone to secondary injury and additional pain, and the number is limited. The rejection of allogeneic tissue transplantation will lead to the failure of the tissue repair process, bring inconvenience to the patient's future life, and increase the cost of tissue repair. In addition, the shortage of allogeneic tissue also poses a severe challenge to tissue repair, and thousands of patients are suffering from diseases every year. Tissue engineering uses cells, growth information, and scaffolds as elem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/112B29C64/321B29C64/393B29C64/386B33Y40/00B33Y50/00B33Y50/02B29L31/00
CPCB29L2031/7532B33Y40/00B33Y50/00B33Y50/02
Inventor 胡庆夕李帅谢明亮李冬冬刘丽军
Owner SHANGHAI UNIV
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