Cylinder body reciprocating type extruder used for 3D food printing

An extruder, reciprocating technology, applied in the field of cylinder reciprocating extruders, can solve problems such as unfavorable large-scale production, lack of stability and uniformity in efficiency, and difficult to achieve precise control, and achieve stable extrusion process. , the effect of high extrusion efficiency

Pending Publication Date: 2017-06-20
SICHUAN COLLEGE OF ARCHITECTURAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a cylinder reciprocating extruder for 3D food printing, which is used to solve the problem that the existing extruders are manually operated, and the mechanical assistance method is not easy to achieve precise control and needs to rely on the operator The technology and experience of the materials, the rate of material extrusion, the efficiency does not have stability and uniformity, which is not conducive to large-scale industrial production; further, a new scheme with a different structure from the extruder retrieved in the background technology is proposed

Method used

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  • Cylinder body reciprocating type extruder used for 3D food printing
  • Cylinder body reciprocating type extruder used for 3D food printing
  • Cylinder body reciprocating type extruder used for 3D food printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] combined with Figure 1-3 As shown, a cylinder reciprocating extruder for 3D food printing includes a material hopper 6 for feeding, a material bin 8 that is airtightly connected to the discharge end of the material bin 6, and a material bin 8 that is connected with the material bin 6. 8. Airtightly connected cylinder body 10, one end of the cylinder body 10 is connected with a guide pipe 2 for discharging materials, and a piston for extruding materials into the guide pipe 2 is installed in the cylinder body 10 11. A control valve 9 for stirring and circulating materials is installed in the material bin 8. The control valve 9 is coaxially installed with the material bin 8 and driven by the first motor 12 arranged on the outer side of the material bin 8, so as to Used to stir the material and transfer the material flow into the cylinder 10;

[0029] The side of the piston 11 far away from the draft tube 2 is fixedly connected with a screw rod 19 for driving the piston 1...

Embodiment 2

[0035] In order to further realize the present invention, this embodiment is based on Embodiment 1, by further setting an anti-backflow mechanism to prevent the reverse flow of materials, specifically adopting the following structure, combined with the attached Figure 1-3 As shown, an anti-backflow device is provided between the draft tube 2 and the cylinder body 10, and the anti-backflow device includes an anti-backflow housing 4 that is fixedly connected to the draft tube 2 and the cylinder body 10, and the anti-backflow housing 4. The limit column 23 is fixedly connected inside, and the end of the limit column 23 is fixedly connected with an annular sliding sleeve 24 with an opening. The anti-backflow valve plug 3 inside, the anti-backflow valve plug 3 realizes reciprocating movement in the anti-backflow valve plug 3 through the sliding rod 25 slidingly connected with the sliding sleeve 24 between the anti-backflow valve plug 3 and the anti-backflow housing 4 A spring in a...

Embodiment 3

[0037] In order to further realize the present invention, this embodiment is based on Embodiment 2. The lower part of the cylinder body 10 is provided with a cylinder body base 22, and the cylinder body base 22 extends toward one end of the screw rod 19 and is connected to The machine base that accommodates the screw mandrel 19 is fixedly connected, the second motor 14 is installed on the upper end of the machine base, and the end of the screw mandrel 19 that has an external thread is threaded with a screw nut 17, and the screw nut 17 is fixed A fixed bearing 18 nested on the side wall of the machine base is connected, and the screw nut 17 is drivingly connected with a drive wheel 15 detachably and fixedly connected to the output shaft of the second motor 14 through a transmission belt.

[0038] In this embodiment, the end of the screw rod 19 close to the base is provided with an anti-rotation column 20 that prevents the screw rod 19 from rotating with the screw nut 17, and the...

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PUM

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Abstract

The invention discloses a cylinder reciprocating extruder for 3D food printing, which comprises a material hopper, a material bin, and a cylinder. One end of the cylinder is connected with a guide tube, and a piston is installed in the cylinder. , a control valve is installed in the material bin, and the control valve is installed coaxially with the material bin and driven by a first motor arranged on the outer side of the material bin to stir the material and transfer the material flow to the cylinder Inside; the piston is connected with a screw rod, and the screw rod is driven by a second motor. In the present invention, by setting a control valve in the material bin, the stirring and mixing effect of the material can be realized, and at the same time, the orderly transfer of the material from the material hopper to the cylinder body can be realized. The whole extrusion process is stable and efficient, and no manual operation is required.

Description

technical field [0001] The invention relates to the field of 3D printing devices, in particular to the field of food 3D printing equipment and devices, specifically, a cylinder reciprocating extruder for 3D food printing. Background technique [0002] 3D printing technology appeared in the mid-1990s and is actually the latest rapid prototyping device utilizing technologies such as light curing and paper lamination. The working principle of it is basically the same as that of ordinary printing. The printer is filled with "printing materials" such as liquid or powder. After being connected to the computer, the "printing materials" are superimposed layer by layer through computer control, and finally the blueprint on the computer is turned into a real object. This printing technology is called 3D printing technology. 3D printing is usually achieved using digital technology material printers. It is often used to make models in the fields of mold manufacturing and industrial de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/20B29C64/307B29C64/314B33Y30/00B33Y40/00
CPCB33Y30/00B33Y40/00
Inventor 谢明阳
Owner SICHUAN COLLEGE OF ARCHITECTURAL TECH
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