Additive manufacturing platform based on photocuring forming

Abstract

The utility model discloses an additive manufacturing platform based on photocuring forming in the technical field of additive manufacturing, which comprises a working table, a resin groove is arranged on the inner side of the working table, a flow guide plate is arranged in the resin groove, a recovery hole is arranged on one side in the resin groove, the outer end of the recovery hole is fixedly connected with a flow guide pipe, and the flow guide pipe is fixedly connected with the working table. A barrel is fixedly connected to one end of the flow guide pipe, a motor is fixedly installed at the bottom of the barrel, a rotary drum is rotatably installed at the bottom of the inner side of the barrel in a limited mode, multiple sets of filtering holes are evenly formed in the surface of the rotary drum, and the bottom of the rotary drum is fixedly connected with the output end of the top of the motor; a first connecting pipe is fixedly connected to one side of the barrel, uncured resin and impurities can be centrifugally separated through the arranged rotary drum, the uncured resin and the impurities flow back to the interior of the collecting box, and recycling is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of additive manufacturing technology, specifically relating to an additive manufacturing platform based on photopolymerization molding. Background Technology

[0002] Stereolithography (SLA) is a technology that uses photosensitive resin to create three-dimensional objects by curing it layer by layer. First appearing in the 1980s, it is currently the most mature and widely used 3D printing technology. Among the various rapid prototyping methods currently in use, SLA is the most widely applied due to its high degree of automation, good surface quality of prototypes, high dimensional accuracy, and ability to achieve relatively fine dimensions. SLA is a 3D printing technology based on photopolymerization, using ultraviolet light or other specific wavelengths of light to irradiate liquid photosensitive resin, causing it to cure layer by layer. This technology features high precision, high surface quality, and fast printing speed, and is widely used in product design, prototyping, and the production of functional components.

[0003] In existing photopolymerization additive manufacturing platforms, the uncured resin inside the resin tank is usually treated as waste after processing. This method increases costs and reduces the resin recycling rate. Therefore, we propose an additive manufacturing platform based on photopolymerization. Utility Model Content

[0004] The purpose of this invention is to provide an additive manufacturing platform based on photopolymerization molding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an additive manufacturing platform based on photopolymerization molding, including a worktable, a resin tank on the inner side of the worktable, a guide plate inside the resin tank, a recovery hole on one side of the inner side of the resin tank, a guide pipe fixedly connected to the outer end of the recovery hole, a cylinder fixedly connected to one end of the guide pipe, a motor fixedly installed at the bottom of the cylinder, a drum rotatably installed on the inner bottom of the cylinder, multiple sets of filter holes evenly opened on the surface of the drum, the bottom of the drum being fixedly connected to the top output end of the motor, a first connecting pipe fixedly connected to one side of the cylinder, a collection box fixedly connected to one end of the first connecting pipe, the top of the collection box being fixedly connected to the bottom of the worktable through a support column, a liquid pump fixedly installed on the outer side of the collection box, a second connecting pipe fixedly connected to one side of the liquid pump, and one end of the second connecting pipe communicating with the interior of the resin tank.

[0006] Preferably, the guide plate is arranged at an angle, and the surface of the guide plate is covered with a nano-hydrophobic coating.

[0007] Preferably, a first switch valve is installed on the surface of the guide tube, and the first switch valve is located near the workbench.

[0008] Preferably, a second switch valve is installed on the surface of the first connecting pipe.

[0009] Preferably, a one-way valve is installed on one side of the surface of the second connecting pipe, and the one-way valve is located near the workbench.

[0010] Preferably, a fixing frame is fixedly installed on one side of the collection box, and the cylinder is fixedly disposed inside the fixing frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The rotating drum can centrifuge and separate uncured resin from impurities, and return the resin to the inside of the collection box for easy recycling.

[0013] 2. The smoothness of the guide plate surface is improved by the nano-hydrophobic coating, which increases the fluidity of the liquid on the inclined guide plate surface. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of the present invention;

[0015] Figure 2 This is a side view of the present invention.

[0016] Figure 3 This is a schematic diagram of the internal structure of the resin tank of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the cylinder of this utility model.

[0018] In the diagram: 1. Workbench; 2. Resin tank; 3. Guide plate; 4. Nano-hydrophobic coating; 5. Recovery hole; 6. Guide pipe; 7. First switch valve; 8. Cylinder; 9. Motor; 10. Drum; 11. Filter hole; 12. First connecting pipe; 13. Second switch valve; 14. Collection box; 15. Liquid pump; 16. Second connecting pipe; 17. Check valve; 18. Support column; 19. Fixture. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: an additive manufacturing platform based on photopolymerization molding, including a workbench 1, a resin tank 2 on the inner side of the workbench 1, a guide plate 3 inside the resin tank 2, a recovery hole 5 on one side inside the resin tank 2, a guide pipe 6 fixedly connected to the outer end of the recovery hole 5, a cylinder 8 fixedly connected to one end of the guide pipe 6, a motor 9 fixedly installed at the bottom of the cylinder 8, a drum 10 rotatably installed on the inner bottom of the cylinder 8, a plurality of filter holes 11 evenly opened on the surface of the drum 10, the bottom of the drum 10 being fixedly connected to the top output end of the motor 9, a first connecting pipe 12 fixedly connected to one side of the cylinder 8, a collection box 14 fixedly connected to one end of the first connecting pipe 12, the top of the collection box 14 being fixedly connected to the bottom of the workbench 1 through a support column 18, a liquid pump 15 fixedly installed on the outer side of the collection box 14, a second connecting pipe 16 fixedly connected to one side of the liquid pump 15, and one end of the second connecting pipe 16 communicating with the interior of the resin tank 2.

[0021] Specifically, the guide plate 3 is set at an angle, and the surface of the guide plate 3 is covered with a nano-hydrophobic coating 4. The nano-hydrophobic coating 4 improves the smoothness of the surface of the guide plate 3 and increases the fluidity of the liquid on the surface of the angled guide plate 3.

[0022] Specifically, a first switch valve 7 is installed on the surface of the guide pipe 6. The first switch valve 7 is located near the workbench 1 and can control the opening and closing of the guide pipe 6.

[0023] Specifically, a second switch valve 13 is installed on the surface of the first connecting pipe 12, and the second switch valve 13 can be controlled to open and close the first connecting pipe 12.

[0024] Specifically, a one-way valve 17 is installed on one side of the surface of the second connecting pipe 16. The one-way valve 17 is located near the workbench 1 and can prevent the liquid inside the second connecting pipe 16 from flowing back.

[0025] Specifically, a fixing frame 19 is fixedly installed on one side of the collection box 14, and the cylinder 8 is fixed inside the fixing frame 19. The fixing frame 19 increases the overall stability of the cylinder 8.

[0026] In this embodiment, opening the first switch valve 7 facilitates the flow of uncured resin in the resin tank 2 through the guide pipe 6 to the middle of the rotating drum 10 inside the cylinder 8. The operation of the motor 9 drives the rotating drum 10 to rotate at high speed. The rotation of the rotating drum 10 can cause the internal resin liquid to undergo centrifugal motion, thereby throwing the internal resin liquid out from the filter hole 11 into the cylinder 8. Impurities in the resin will remain inside the rotating drum 10. The centrifuged resin will flow back to the inside of the collection tank 14 through the first connecting pipe 12. The liquid pump 15 can draw the resin inside the collection tank 14 into the resin tank 2 through the second connecting pipe 16, achieving the effect of recycling.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Additive manufacturing platform based on light solidification modeling, comprising a worktable (1), characterized in that: The inner side of the workbench (1) is provided with a resin tank (2), the inside of the resin tank (2) is provided with a guide plate (3), the inside of the resin tank (2) is provided with a recycling hole (5), the outer end of the recycling hole (5) is fixedly connected with a flow guide pipe (6), one end of the flow guide pipe (6) is fixedly connected with a cylinder (8), the bottom of the cylinder (8) is fixedly installed with a motor (9), the inner bottom of the cylinder (8) is rotatably installed with a rotating drum (10), the surface of the rotating drum (10) is uniformly provided with a plurality of filter holes (11), the bottom of the rotating drum (10) and the top output end of the motor (9) are fixedly connected, one side of the cylinder (8) is fixedly connected with a first connecting pipe (12), one end of the first connecting pipe (12) is fixedly connected with a collecting box (14), the top end of the collecting box (14) and the bottom of the workbench (1) are fixedly connected through a supporting column (18), the outer side of the collecting box (14) is fixedly installed with a liquid pump (15), one side of the liquid pump (15) is fixedly connected with a second connecting pipe (16), one end of the second connecting pipe (16) is communicated with the inside of the resin tank (2).

2. The light-cure forming based additive manufacturing platform of claim 1, wherein: The guide plate (3) is obliquely arranged, and the surface of the guide plate (3) is covered with a nano liquid-repellent coating (4).

3. The light-cure forming based additive manufacturing platform of claim 1, wherein: The surface of the flow guide pipe (6) is provided with a first on-off valve (7), and the first on-off valve (7) is arranged close to the workbench (1).

4. The light-cure forming based additive manufacturing platform of claim 1, wherein: The surface of the first connecting pipe (12) is provided with a second on-off valve (13).

5. The light-cure forming based additive manufacturing platform of claim 1, wherein: The surface of the second connecting pipe (16) is provided with a one-way valve (17) on one side, and the one-way valve (17) is arranged close to the workbench (1).

6. The vat photopolymerization-based additive manufacturing platform of claim 1, wherein: One side of the collecting box (14) is fixedly installed with a fixing frame (19), and the cylinder (8) is fixedly arranged in the inside of the fixing frame (19).

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