3D printing device and method

Abstract

The invention discloses a 3D printing device. The 3D printing device comprises a resin tank, a printing platform and a light source system. A hard transparent plate is arranged on the bottom face of the resin tank, a transparent gel layer is arranged on the hard transparent plate, the printing platform is located on the upper portion of the resin tank, a light source of the light source system isarranged on the lower portion of the hard transparent plate, and the gel layer contains silicone oil or fluorocarbon oil. The invention further provides a 3D printing method. According to the 3D printing device and method, drawing force during releasing can be obviously reduced, and meanwhile, conventional all photosensitive resin on the market can be compatible.

Description

technical field

[0001] The invention relates to rapid prototyping technology, in particular to a photocuring 3D printing device and method. Background technique

[0002] Light-curing 3D printing uses liquid photosensitive resin as the printing material, which is cured with light of a specific wavelength. The whole process has no mechanical force and heating process, and has the highest molding precision. Photocuring 3D printing mainly includes two types of technologies: Stereolithography (SLA) and Digital Light Processing (DLP). Among them, the process of DLP is to design a three-dimensional solid model and perform slice processing, and the generated image is projected onto the surface of the liquid photosensitive resin through a digital projector, so that the resin in a specific area is cured. Then the printing platform moves up for a certain distance, and after the surface of the cured layer is completely replenished with liquid resin, the next projection is performed, so...

Examples

Embodiment 1

[0046] Tridefluorooctyl acrylate 10g

[0047] Perfluoropolyether diacrylate MD700 (Solvay) 0.1g

[0048] Fluorine Oil Krytox 100 90g

[0049] Initiator BPO 0.1g

[0050] The above proportioned mixed solution is poured on a 3 mm thick quartz glass plate, and kept in a 60-degree oven for 1 hour to form a fluorine-containing gel layer, and the thickness of the gel layer is 2 mm.

Embodiment 2

[0052] Tridecyl octyl acrylate 6g

[0053] Perfluoropolyether diacrylate MD700 (Solvay) 4g

[0054] Fluorine Oil Krytox 200 40g

[0055] Initiator BPO 0.1g

[0056] Pouring the above proportioned mixed solution in H 2 SO 4 -H 2 o 2 The treated 3mm quartz glass plate is kept in a 60-degree oven for 1 hour to form a hydrogel layer, and the thickness of the hydrogel layer is 1mm.

Embodiment 3

[0058] Polysiloxane acrylate (Mw=200) 10g

[0059] Polysiloxane diacrylate (1000mPa.s) 1g

[0060] Methyl silicone oil (100mPa.s) water 90g

[0061] AIBN (initiator) 0.1g

[0062] The above proportioned mixed solution was poured on a plasma-treated 3 mm acrylic plate, and kept in an 80-degree oven for 3 hours to form a gel layer with a thickness of 3 mm.

technical field

[0001] The invention relates to rapid prototyping technology, in particular to a photocuring 3D printing device and method. Background technique

[0002] Light-curing 3D printing uses liquid photosensitive resin as the printing material, which is cured with light of a specific wavelength. The whole process has no mechanical force and heating process, and has the highest molding precision. Photocuring 3D printing mainly includes two types of technologies: Stereolithography (SLA) and Digital Light Processing (DLP). Among them, the process of DLP is to design a three-dimensional solid model and perform slice processing, and the generated image is projected onto the surface of the liquid photosensitive resin through a digital projector, so that the resin in a specific area is cured. Then the printing platform moves up for a certain distance, and after the surface of the cured layer is completely replenished with liquid resin, the next projection is performed, so...

Examples

Embodiment 1

[0046] Tridefluorooctyl acrylate 10g

[0047] Perfluoropolyether diacrylate MD700 (Solvay) 0.1g

[0048] Fluorine Oil Krytox 100 90g

[0049] Initiator BPO 0.1g

[0050] The above proportioned mixed solution is poured on a 3 mm thick quartz glass plate, and kept in a 60-degree oven for 1 hour to form a fluorine-containing gel layer, and the thickness of the gel layer is 2 mm.

Embodiment 2

[0052] Tridecyl octyl acrylate 6g

[0053] Perfluoropolyether diacrylate MD700 (Solvay) 4g

[0054] Fluorine Oil Krytox 200 40g

[0055] Initiator BPO 0.1g

[0056] Pouring the above proportioned mixed solution in H 2 SO 4 -H 2 o 2 The treated 3mm quartz glass plate is kept in a 60-degree oven for 1 hour to form a hydrogel layer, and the thickness of the hydrogel layer is 1mm.

Embodiment 3

[0058] Polysiloxane acrylate (Mw=200) 10g

[0059] Polysiloxane diacrylate (1000mPa.s) 1g

[0060] Methyl silicone oil (100mPa.s) water 90g

[0061] AIBN (initiator) 0.1g

[0062] The above proportioned mixed solution was poured on a plasma-treated 3 mm acrylic plate, and kept in an 80-degree oven for 3 hours to form a gel layer with a thickness of 3 mm.

Images