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A piston extrusion nozzle for a 3D printer

A 3D printer, extrusion technology, applied in the field of 3D printing, can solve problems such as material pollution, and achieve the effect of increasing the Z-direction printing size and preventing the vibration of the nozzle

Active Publication Date: 2021-03-02
MEDPRIN REGENERATIVE MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the biological material is transferred from the container to the transitional equipment and finally to the barrel of the nozzle. There is a secondary transfer. If the sterilization is not strict, it will cause contamination of the material.

Method used

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  • A piston extrusion nozzle for a 3D printer
  • A piston extrusion nozzle for a 3D printer
  • A piston extrusion nozzle for a 3D printer

Examples

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Embodiment Construction

[0028] The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

[0029] Such as Figure 1 to Figure 5 As shown, a piston extruding spray head of a 3D printer, which includes a thermal insulation cover assembly 1, a detachable piston injector 2 inserted in the thermal insulation cover assembly 1, used to drive the piston rod 21 in the The driving module for linear motion in the piston cylinder 22 of the piston syringe 2. The drive module includes ...

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Abstract

The invention provides a piston extrusion nozzle of a 3D printer, which includes a heat preservation sleeve assembly, a detachable piston syringe inserted in the heat preservation sleeve assembly, and a piston rod for driving a piston rod to move linearly in a piston cylinder of the piston syringe. The drive module; the drive module includes a module motor arranged on one side of the insulation cover assembly, a lead screw connected to the output shaft of the module motor, and a slider pierced on the lead screw an assembly, wherein one end of the slider assembly close to the thermal insulation sleeve assembly is detachably connected to the tail end of the piston rod. The piston extrusion nozzle of the 3D printer of the present invention uses a detachable piston syringe to replace the conventional non-detachable piston cylinder, which can avoid the process of secondary transfer of biological materials and ensure that the biological materials are not polluted. One side of the insulation cover assembly reduces the overall height of the nozzle and increases the printing size.

Description

technical field [0001] The present invention relates to the technical field of 3D printing, more specifically, to a piston extruding nozzle of a 3D printer. Background technique [0002] Biological 3D printing technology is gradually becoming mature after upgrading and optimization, and printing equipment is also developing towards miniaturization and precision. For general-purpose extrusion bioprinting nozzles, according to the extrusion driving method of the material, it can be divided into three types: direct pneumatic extrusion nozzles, piston extrusion nozzles and screw extrusion nozzles. [0003] For the direct pneumatic extrusion nozzle, since the air source can be directly introduced into the nozzle through the air pipe, the structure of the direct pneumatic nozzle is relatively simple and the overall development is easy to be miniaturized. However, due to the direct use of an external gas source as the driving pressure, due to the compressibility of the gas, it is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/209B29C64/295B29C64/227B33Y30/00
CPCB33Y30/00B29C64/209B29C64/227B29C64/295
Inventor 张传杰袁玉宇
Owner MEDPRIN REGENERATIVE MEDICAL TECH
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