Photocuring 3D printing and post-processing all-in-one machine

Abstract

The invention discloses a photocuring 3D printing and post-processing all-in-one machine, and belongs to the technical field of 3D printers, the photocuring 3D printing and post-processing all-in-one machine comprises a frame, an ultraviolet light source is mounted in the frame, a lifting mechanism and a material box are mounted at the top of the frame, a printing platform is fixedly connected to the bottom of the lifting mechanism, and the printing platform is used for printing substances in the material box; an air drying device and a curing device are arranged on the two sides of the top face of the frame from low to high correspondingly, and photosensitive resin, isolation liquid and a cleaning agent are arranged in the material box. Photocuring 3D printing and post-treatment can be synchronously implemented in one device, original serial operation is changed into parallel operation, and post-treatment is completed after printing is completed, so that the production efficiency is greatly improved, meanwhile, parts do not need to be manually carried among devices in sequence in the whole process, and the labor intensity of workers is reduced. Therefore, the dependence on manpower is eliminated.

Description

Technical Field

[0001] The invention belongs to the technical field of 3D printers, and in particular relates to a photocuring 3D printing and post-processing all-in-one machine. Background Art

[0002] Stereolithography 3D printing is a 3D printing technology based on additive manufacturing of photosensitive resin materials. Its principle is to build three-dimensional objects layer by layer by irradiating photosensitive resin with ultraviolet light. The printing process is usually carried out layer by layer: each layer of photosensitive resin is cured after being exposed to ultraviolet light, and the printing platform moves a specific distance, and so on, until the entire model is printed. Stereolithography 3D printer technology has the characteristics of high resolution and precision, smooth surface, and diverse material selection. It has outstanding advantages in the production of jewelry, dentistry, and engineering parts.

[0003] There are usually two methods for existing light-curing 3D printing and post-processing processes: method 1 (such as Figure 1 ) is that the 3D printer and post-processing equipment are independent of each other, and it is necessary to manually move the parts between the various devices in order and manually operate each device. Figure 2 ) is to integrate 3D printing and post-processing into one device, with multiple stations performing different operations respectively. The equipment automatically moves parts between multiple stations in order, and the whole process does not require manual operation. The main disadvantage of method 1 is that it relies on manual labor and takes a long time. Compared with method 1, method 2 is a great improvement and gets rid of the dependence on manual labor, but 3D printing and post-processing are still carried out in sequence, and post-processing occupies a large proportion of the entire printing cycle. Especially for large or complex printed objects, the post-processing time may be as long as several hours, which not only affects production efficiency, but also increases production costs. Summary of the invention

[0004] The purpose of the present invention is to provide a photo-curing 3D printing and post-processing all-in-one machine to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a light-curing 3D printing and post-processing all-in-one machine, including a frame, a UV light source is installed in the frame, a lifting mechanism and a material box are installed on the top of the frame, a printing platform is fixedly connected to the bottom of the lifting mechanism, and the printing platform is used to print the material in the material box. A drying device and a curing device are respectively provided on both sides of the top surface of the frame from low to high, and a photosensitive resin, an isolation liquid and a cleaning agent are provided in the material box.

[0006] Preferably, connecting plates are fixedly connected to both sides of the frame, the air-drying device and the curing device are fixedly connected to the connecting plates, and the air-drying device includes a fan fixedly connected to the connecting plates.

[0007] Preferably, the curing device comprises a curing light fixedly connected to the connecting plate, and the curing light is located above the fan.

[0008] Preferably, the ultraviolet light source is an ultraviolet point light source or an ultraviolet surface light source.

[0009] Preferably, the curing lamp is a light source of 365nm band, 395nm band, 405nm band or mixed band.

[0010] Preferably, the isolation liquid is a liquid that is incompatible with the cleaning agent and the photosensitive resin respectively.

[0011] The present invention discloses the following technical effects: at the beginning of printing, the lifting mechanism controls the printing platform to descend to the bottom of the material box, and the ultraviolet light source irradiates an ultraviolet light pattern onto the material in the material box, so that the bottom is solidified into a solid and connected to the printing platform, and then the lifting mechanism controls the printing platform to rise a certain distance. This process will be repeated alternately to build the printed parts layer by layer; in the above process, as the printed parts rise and contact the cleaning agent, the residual uncured resin on their surface will be removed by the cleaning agent, thereby achieving synchronous cleaning during the printing process; as the printed parts rise, the air drying device and the curing device respectively air dry and cure the printed parts, and as the printed parts are built, printing and post-processing are completed.

[0012] The present invention enables the simultaneous implementation of photocuring 3D printing and post-processing in one device, changing the original serial operation into parallel operation. When printing is completed, the post-processing is completed, thereby greatly improving production efficiency. At the same time, the entire process does not require manual transport of parts between various devices in order, thus getting rid of the dependence on manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 This is a schematic diagram of the first method of existing light-curing 3D printing and post-processing;

[0015] Figure 2 It is a schematic diagram of the second method of existing light-curing 3D printing and post-processing;

[0016] Figure 3 This is a front view of the light-curing 3D printing and post-processing integrated machine of the present invention at the beginning of printing;

[0017] Figure 4 It is a side view of the light-curing 3D printing and post-processing all-in-one machine of the present invention at the beginning of printing;

[0018] Figure 5 It is a front view of the light-curing 3D printing and post-processing all-in-one machine of the present invention during the cleaning process;

[0019] Figure 6 This is a partial enlarged view of the cleaning process of the light-curing 3D printing and post-processing all-in-one machine of the present invention;

[0020] Figure 7 It is a front view of the light-curing 3D printing and post-processing all-in-one machine of the present invention during the air-drying process;

[0021] Figure 8 It is a front view of the light-curing 3D printing and post-processing all-in-one machine of the present invention during the curing process.

[0022] In the figure: 1. Frame; 2. UV light source; 3. Lifting mechanism; 4. Material box; 5. Printing platform; 6. Fan; 7. Curing lamp; 8. Printing parts; 9. Photosensitive resin; 10. Isolation liquid; 11. Cleaning agent. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Reference Figure 3-Figure 8 As shown, this embodiment provides a photocuring 3D printing and post-processing all-in-one machine, including a frame 1, a UV light source 2 is installed in the frame 1, a lifting mechanism 3 and a material box 4 are installed on the top of the frame 1, a printing platform 5 is fixedly connected to the bottom of the lifting mechanism 3, and the printing platform 5 is used to print the material in the material box 4. A drying device and a curing device are respectively provided on both sides of the top surface of the frame 1 from low to high, and a photosensitive resin 9, an isolation liquid 10 and a cleaning agent 11 are provided in the material box 4.

[0026] At the beginning of printing, the lifting mechanism 3 controls the printing platform 5 to descend to the bottom of the material box 4, and the ultraviolet light source 2 irradiates the ultraviolet light pattern onto the material in the material box 4, so that the bottom of the material is solidified and connected to the printing platform 5, and then the lifting mechanism 3 controls the printing platform 5 to rise a certain distance. This process will be repeated alternately, and the printed part 8 will be constructed layer by layer; in the above process, as the printed part 8 rises and contacts the cleaning agent 11, the residual uncured resin on its surface will be removed by the cleaning agent 11, thereby achieving synchronous cleaning during the printing process; as the printed part 8 rises, the air drying device and the curing device begin to air dry and cure the printed part 8; as the printed part 8 is constructed, the printing and post-processing are completed.

[0027] The present invention enables the simultaneous implementation of photocuring 3D printing and post-processing in one device, changing the original serial operation into parallel operation. When printing is completed, the post-processing is completed, thereby greatly improving production efficiency. At the same time, the entire process does not require manual transport of parts between various devices in order, thus getting rid of the dependence on manual labor.

[0028] According to a further optimized solution, a photosensitive resin 9 is provided at the bottom of the material box 4 , an isolation liquid 10 is provided on the top of the photosensitive resin 9 , and a cleaning agent 11 is provided on the top of the isolation liquid 10 .

[0029] According to a further optimized solution, connecting plates are fixedly connected to both sides of the frame 1, and a drying device and a curing device are fixedly connected to the connecting plates. The drying device includes a fan 6 fixedly connected to the connecting plates.

[0030] The curing device includes a curing lamp 7 fixedly connected to the connecting plate, and the curing lamp 7 is located above the fan 6.

[0031] As the printed part 8 rises to the height of the fan 6, the fan 6 starts working to air-dry the surface of the printed part 8 so that the residual cleaning agent 11 can be fully volatilized; as the printed part 8 rises to the height of the curing lamp 7, the curing lamp 7 starts working to light-cure the surface of the printed part 8 so that the part can achieve the best mechanical properties.

[0032] According to a further optimization scheme, the ultraviolet light source 2 is an ultraviolet point light source or an ultraviolet surface light source.

[0033] According to a further optimized solution, the curing lamp 7 is a light source of 365 nm, 395 nm, 405 nm or mixed wavelengths.

[0034] According to a further optimized solution, the isolation liquid 10 is a liquid that is incompatible with the cleaning agent 11 and the photosensitive resin 9 .

[0035] The cleaning agent 11 may be chemical solvents such as industrial alcohol, isopropyl alcohol, etc. The isolation liquid 10 may be liquid paraffin, vegetable oil, etc.

[0036] When the device is working, its general workflow is as follows:

[0037] (1) At the beginning of printing, the lifting mechanism 3 controls the printing platform 5 to descend to the bottom position of the material box 4 (such as Figure 3 and Figure 4 );

[0038] (2) The UV light source 2 irradiates a UV light pattern onto the photosensitive resin 9, causing the bottom of the photosensitive resin 9 to solidify and connect to the printing platform 5. The lifting mechanism 3 then controls the printing platform 5 to rise a certain distance. This process is repeated alternately to build the printed part 8 (such as a printed part) layer by layer. Figure 5 );

[0039] (3) In the above process, as the printed part 8 rises and contacts the cleaning agent 11, the residual uncured resin on its surface will be removed by the cleaning agent 11, thereby achieving simultaneous cleaning during the printing process (e.g. Figure 6 );

[0040] (4) In the above process, as the printed part 8 rises to the height where the fan 6 is located, the fan 6 starts to work to air-dry the surface of the printed part 8 so that the residual cleaning agent is fully volatilized (such as Figure 7 );

[0041] (5) In the above process, as the printed part 8 rises to the height of the curing lamp 7, the curing lamp 7 starts to work to light-cure the surface of the printed part 8 so that the part achieves the best mechanical properties (such as Figure 8 );

[0042] (6) With the printed part 8 constructed, printing and post-processing are complete.

[0043] From the above steps, it can be seen that the present invention enables the simultaneous implementation of photocuring 3D printing and post-processing in one device, changing the original serial operation into parallel operation, and the post-processing is completed when the printing is completed, thereby greatly improving the production efficiency. At the same time, the whole process does not require manual transportation of parts between various devices in order, thus getting rid of the dependence on manual labor.

[0044] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A light-curing 3D printing and post-processing all-in-one machine, characterized by: The invention comprises a frame (1), wherein an ultraviolet light source (2) is installed in the frame (1), a lifting mechanism (3) and a material box (4) are installed on the top of the frame (1), a printing platform (5) is fixedly connected to the bottom of the lifting mechanism (3), and the printing platform (5) is used to print the material in the material box (4), and a drying device and a curing device are respectively arranged on both sides of the top surface of the frame (1) from the bottom to the top, and a photosensitive resin (9), an isolation liquid (10) and a cleaning agent (11) are arranged in the material box (4).

2. The light-curing 3D printing and post-processing all-in-one machine according to claim 1, characterized in that: The frame (1) is respectively fixedly connected to connecting plates on both sides, the air-drying device and the curing device are fixedly connected to the connecting plates, and the air-drying device comprises a fan (6) fixedly connected to the connecting plates.

3. The integrated light-curing 3D printing and post-processing machine according to claim 2, characterized in that: The curing device comprises a curing lamp (7) fixedly connected to the connecting plate, and the curing lamp (7) is located above the fan (6).

4. The integrated light-curing 3D printing and post-processing machine according to claim 1, characterized in that: The ultraviolet light source (2) is an ultraviolet point light source or an ultraviolet surface light source.

5. The integrated light-curing 3D printing and post-processing machine according to claim 3, characterized in that: The curing lamp (7) is a light source of 365nm waveband, 395nm waveband, 405nm waveband or mixed waveband.

6. The integrated light-curing 3D printing and post-processing machine according to claim 1, characterized in that: The isolation liquid (10) is a liquid that is incompatible with the cleaning agent (11) and the photosensitive resin (9).

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