Food microwave three-dimensional printing method and printer

A three-dimensional printer and three-dimensional printing technology, applied in the food field, can solve the problems of easy collapse of printed products, difficult to print hollow three-dimensional structures, incomplete curing, etc., and achieve the effects of stable microwave output, prevention of microwave leakage and diffusion, and high mechanical strength.

Active Publication Date: 2019-05-31
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the existing problems in the 3D printing process of fluid gel-type foods such as surimi, minced meat, and rice noodle paste, such as incomplete ripening, easy collapse

Method used

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  • Food microwave three-dimensional printing method and printer
  • Food microwave three-dimensional printing method and printer
  • Food microwave three-dimensional printing method and printer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment provides a food three-dimensional printer, see figure 1 , the food three-dimensional printer includes a printing drive mechanism, a microwave heating unit, an anti-leakage unit, an extrusion unit, a control unit and a printing platform; wherein, the microwave heating unit includes a microwave solid-state source, a microwave heating probe; the extrusion unit includes a barrel, The barrel wall of the barrel is a partially hollow structure, and the microwave heating probe is located in the hollow structure of the barrel wall.

[0049] The food three-dimensional (3D) printer is designed on the basis of a 3D printer with a printing drive mechanism, including peripheral stainless steel frame materials, X-axis guide rod 1, Z-axis guide rod 2, Y-axis guide rod 3, printing platform 4, Barrel 5, lead screw stepping motor 6, fixing seat 7 and other printing drive installation mechanisms.

[0050] like figure 1 , figure 2 , image 3 As shown, the microwave heat...

Embodiment 2

[0082] This embodiment provides a three-dimensional printing method for food, the method adopts the food three-dimensional printer given in the first embodiment, and the method includes:

[0083] According to the type of material to be printed, a barrel of non-absorbing material with a corresponding size is selected to be installed on the food 3D printer;

[0084] Specifically, (1) first measure the dielectric constant ε and magnetic permeability μ of the material to be printed;

[0085]

[0086] Input the dielectric constant ε and permeability μ of the material to be printed into the above formula to calculate the input impedance z of the material to be printed in , in the above formula, z in is the input impedance of the material; c is the speed of light in vacuum, c=3×10 8 m / s; ω=2πf, f is the microwave frequency,

[0087] μ 0 is the permeability in free space, 4π×10 -7 H / m; μ is the magnetic permeability of the material; ε 0 is the dielectric constant in free spac...

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Abstract

The invention discloses a food microwave three-dimensional printing method and a printer and belongs to the technical field of foods. Microwaves are released at the front end through a microwave heating probe embedded in the inner wall of a charging barrel, the size setting of a non-wave absorbing material is combined, and the effect of instant curing of an extruded material is achieved; by adopting the design of a horn mouth and a choke groove of an anti-leakage unit and the design of a wave absorbing material of a printing platform, the heating efficiency of the product is effectively improved, and microwave leakage and diffusion are prevented; microwaves are generated by a microwave solid-state source and is conducted by a transmission line, so that microwave output is stable, power andfrequency can be adjusted according to printing requirements, and the microwave solid-state source is small in size and convenient to integrate; The printed product structure is high in mechanical strength by means of printing and heating curing, the hollow unsupported three-dimensional structure can be manufactured, and product modeling is not easy to collapse.

Description

technical field [0001] The invention relates to a food microwave three-dimensional printing method and a printer, belonging to the technical field of food. Background technique [0002] 3D printing is a new type of manufacturing method. It performs layer-by-layer printing and layer-by-layer printing to manufacture parts according to the instructions of the control system. Compared with traditional manufacturing methods, it has the characteristics of fast speed, wide application range and high precision. At present, 3D printing is mainly used in the food field to print temperature-sensitive materials such as chocolate and self-mixed paste, and most of them use Fused Deposition Modeling (Fused Deposition Modeling, FDM) technology. FDM technology is to extrude the molten or slurry food fluid from the nozzle and accumulate it on the platform. Due to the low melting point of chocolate, the molten chocolate is extruded from the barrel, and it will be fixed and formed immediately ...

Claims

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Application Information

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IPC IPC(8): A23P30/00
CPCA23P20/20A23P30/00A23P2020/253B33Y10/00B33Y30/00A23V2002/00A23L5/15
Inventor 范大明赵子龙金立明闫博文张灏高文华曹洪伟杨化宇赵建新陈卫
Owner JIANGNAN UNIV
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