Photocuring 3D printer with parallel light source

Abstract

The utility model discloses a photocuring 3D printer with a parallel light source, and particularly relates to the technical field of photocuring 3D printers, which comprises a printer main body, a rear housing is fixedly connected to the rear side of the top of the printer main body, two hinges are fixedly connected to the top of the rear housing, and a front housing is fixedly connected to the bottoms of the front sides of the two hinges. Magnets are fixedly connected to the top of the hinge and the top of the front housing, and a ventilation processing mechanism is fixedly connected to one side of the rear housing; the ventilation treatment mechanism comprises a ventilation pipe, a fixing pipe is fixedly connected to the bottom end of the ventilation pipe, a fan is fixedly connected into the fixing pipe, and a treatment box is fixedly connected to the bottom of the fixing pipe. Through the arrangement of the ventilation treatment mechanism, a fan sucks toxic gas generated in the printing process into the treatment box through a ventilation pipe, the toxic gas is treated and neutralized twice through a water mist spray head and an activated carbon plate, and then the neutralized gas is discharged through a filter screen; and the influence of toxic gas generated in photocuring 3D printing on a human body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of light-curing 3D printers, and more specifically, to a light-curing 3D printer with a parallel light source. Background Art

[0002] Stereolithography 3D printing uses a special photosensitive resin that hardens when exposed to light. Stereolithography 3D printing technology, also known as stereolithography (SLA) or photosensitive resin 3D printing, is a 3D printing technology based on the principle of photocuring. Its basic principle is to use ultraviolet light (UV) or other visible light sources to irradiate liquid photosensitive resin to solidify it layer by layer and eventually accumulate it into a three-dimensional entity.

[0003] The backlight source used in the LCD screen of the existing light-curing 3D printer emits light with different intensities in different areas. Usually, the light intensity in the center area of ​​the light source is higher, and the light intensity in the edge area is lower than that in the center area, resulting in disadvantages such as low yield and low molding efficiency in the molding process.

[0004] After searching, the light-curing 3D printer disclosed in the Chinese patent with publication number CN209971566U is a utility model. The dispersed light sources of multiple LED lamp beads on the LED lamp board are formed into parallel light sources through the refraction and dimming effect of a convex lens, thereby reducing the molding error in the light-curing 3D printing process and improving the molding rate of light-curing 3D printing.

[0005] However, when the above-mentioned light-curing printer is actually used, some toxic gases may be generated when printing some light-curing resins, which may have a certain impact on the health of surrounding workers. At the same time, the fixing of the molding platform also requires repeated screwing, which affects the work efficiency. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a light-curing 3D printer with a parallel light source to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A light-curing 3D printer with a parallel light source comprises a printer body, a rear cover shell is fixedly connected to the top rear side of the printer body, two hinges are fixedly connected to the top of the rear cover shell, a front cover shell is fixedly connected to the bottom of the front side of the two hinges, magnets are fixedly connected to the hinges and the top of the front cover shell, and a ventilation processing mechanism is fixedly connected to one side of the rear cover shell;

[0009] The ventilation treatment mechanism includes a ventilation pipe, a fixed pipe is fixedly connected to the bottom end of the ventilation pipe, a fan is fixedly connected to the inside of the fixed pipe, a treatment box is fixedly connected to the bottom of the fixed pipe, a water mist nozzle is fixedly connected to one side of the inner wall of the treatment box, a slide is fixedly connected to the top of the inner wall of the treatment box, an activated carbon plate is movably connected to the inside of the slide, a filter is fixedly connected to one side of the treatment box, and a water inlet pipe is fixedly connected to the other side of the top of the treatment box.

[0010] By adopting the above technical scheme: the rear cover is fixedly connected to the rear side of the top of the printer body, two hinges are fixedly connected to the top of the rear cover, two front cover shells are fixedly connected to the bottom of the front sides of the two hinges, two magnets are fixedly connected to the hinges and the top of the front cover shells, the ventilation pipe is fixedly connected to one side of the rear cover, the fixed pipe is fixedly connected to the bottom end of the ventilation pipe, the fan is fixedly connected inside the fixed pipe, the processing box is fixedly connected to the bottom of the fixed pipe, the water mist nozzle is fixedly connected to one side of the inner wall of the processing box, the slide is fixedly connected to the top of the inner wall of the processing box, the activated carbon plate is movably connected inside the slide, the filter is fixedly connected to one side of the processing box, and the water inlet pipe is fixedly connected to the other side of the top of the fan.

[0011] As a further description of the above technical solution:

[0012] A sealing ring is fixedly connected to the top of the printer body, and a motor is fixedly connected to the rear side of the inside of the printer body.

[0013] By adopting the above technical solution: the sealing ring is fixedly connected to the top of the printer body, and the motor is fixedly connected to the rear side inside the printer body.

[0014] As a further description of the above technical solution:

[0015] The motor output end is coaxially connected with a threaded rod, a threaded block is movably connected to the outer side of the threaded rod, and a sliding block is movably connected to the outer side of the threaded block.

[0016] By adopting the above technical solution: the threaded rod is coaxially connected at the output end of the motor, the threaded block is movably connected at the outside of the threaded rod, and the sliding block is movably connected at the rear side of the inside of the threaded block.

[0017] As a further description of the above technical solution:

[0018] The front side of the sliding block is fixedly connected to two fixing blocks, and the interiors of the two fixing blocks are fixedly connected to two telescopic rods.

[0019] By adopting the above technical solution: the two fixing blocks are fixedly connected at the front side of the sliding block, and the two telescopic rods are fixedly connected inside the two fixing blocks.

[0020] As a further description of the above technical solution:

[0021] The outer sides of the two telescopic rods are movably connected with springs, and the front ends of the plurality of telescopic rods are fixedly connected with two clamping blocks.

[0022] By adopting the above technical solution: two springs are movably connected at the outsides of two telescopic rods, and a plurality of clamping blocks are fixedly connected at the front ends of the plurality of telescopic rods.

[0023] As a further description of the above technical solution:

[0024] One side of the two clamping blocks is movably connected with a clamping block, both sides of the clamping block are provided with clamping grooves, and the bottom of the clamping block is fixedly connected with a molding platform.

[0025] By adopting the above technical solution: the two clamping blocks are movably connected at one side of the two clamping blocks, the clamping grooves are arranged on both sides of the clamping blocks, and the forming platform is fixedly connected at the bottom of the clamping blocks.

[0026] As a further description of the above technical solution:

[0027] Two fixing frames are fixedly connected to the top of the printer body, and resin boxes are movably connected to the inner walls of the two fixing frames.

[0028] By adopting the above technical solution: the two fixing frames are fixedly connected at the top of the printer body, and the resin box is movably connected to the inner walls of the two fixing frames.

[0029] Technical effects and advantages of the utility model:

[0030] 1. By setting up a ventilation treatment mechanism, compared with the existing technology, the fan sucks the toxic gas generated during printing into the inside of the treatment box through the ventilation pipe. The water mist nozzle and the activated carbon plate treat and neutralize the toxic gas twice, and then discharge the neutralized gas through the filter, reducing the impact of the toxic gas generated in light-curing 3D printing on the human body;

[0031] 2. By setting a fixed block, a telescopic rod, a spring, a clamping block, a clamping block and a slot, compared with the prior art, after the clamping block is inserted into the middle of the two fixed blocks, the clamping block is quickly clamped by the two clamping blocks, which speeds up the installation and disassembly of the forming platform and improves the work efficiency to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0033] Figure 2 It is a schematic diagram of the front structure of the utility model.

[0034] Figure 3 It is a schematic diagram of the rear structure of the utility model.

[0035] Figure 4It is a schematic diagram of the cross-sectional structure of the processing box of the utility model.

[0036] Figure 5 This is a schematic diagram of the fixed block structure of the utility model.

[0037] Figure 6 This is a schematic diagram of the clamping block structure of the utility model.

[0038] The accompanying drawings are marked as follows: 1. printer body; 2. rear cover; 3. hinge; 4. front cover; 5. magnet; 6. ventilation pipe; 7. fixing pipe; 8. fan; 9. processing box; 10. water mist nozzle; 11. slide; 12. activated carbon plate; 13. filter; 14. water inlet pipe; 15. sealing ring; 16. motor; 17. threaded rod; 18. threaded block; 19. slider; 20. fixing block; 21. telescopic rod; 22. spring; 23. block; 24. clamping block; 25. slot; 26. forming platform; 27. fixing frame; 28. resin box. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The embodiment of the present application discloses a light-curing 3D printer with a parallel light source, specifically comprising a printer body 1, a rear cover 2 is fixedly connected to the top rear side of the printer body 1, two hinges 3 are fixedly connected to the top of the rear cover 2, a front cover 4 is fixedly connected to the bottom of the front side of the two hinges 3, magnets 5 are fixedly connected to the tops of the hinges 3 and the front cover 4, and a ventilation treatment mechanism is fixedly connected to one side of the rear cover 2;

[0041] The ventilation treatment mechanism includes a ventilation pipe 6, a fixed pipe 7 is fixedly connected to the bottom end of the ventilation pipe 6, a fan 8 is fixedly connected inside the fixed pipe 7, a treatment box 9 is fixedly connected to the bottom of the fixed pipe 7, a water mist nozzle 10 is fixedly connected to one side of the inner wall of the treatment box 9, a slide 11 is fixedly connected to the top of the inner wall of the treatment box 9, an activated carbon plate 12 is movably connected inside the slide 11, a filter screen 13 is fixedly connected to one side of the treatment box 9, and a water inlet pipe 14 is fixedly connected to the other side of the top of the treatment box 9. The toxic gas generated during the printing process is sucked into the interior of the treatment box 9 through the fan 8 and the ventilation pipe 6, and the toxic gas is neutralized by the water mist nozzle 10 and the slide 11, and then discharged through the filter screen 13 to prevent the escape of toxic gas from causing harm to the human body.

[0042] Reference Figure 1As shown, specifically, a sealing ring 15 is fixedly connected to the top of the printer body 1 to maintain the airtightness of the interior when printing.

[0043] Reference Figure 3 As shown, specifically, a motor 16 is fixedly connected to the rear side of the printer body 1 to provide power for the movement of the slider 19 .

[0044] Reference Figure 1 As shown, specifically, a threaded rod 17 is coaxially connected to the output end of the motor 16 , a threaded block 18 is movably connected to the outer side of the threaded rod 17 , and a slider 19 is movably connected to the outer side of the threaded block 18 , so that the slider 19 can move smoothly on the outer side of the threaded block 18 .

[0045] Reference Figure 5 As shown, specifically, two fixed blocks 20 are fixedly connected to the front side of the slider 19, two telescopic rods 21 are fixedly connected inside the two fixed blocks 20, springs 22 are movably connected to the outer sides of the two telescopic rods 21, and two clamping blocks 23 are fixedly connected to the front ends of the multiple telescopic rods 21, which can quickly fix the clamping blocks 24.

[0046] Reference Figure 6 As shown, specifically, one side of the two clamping blocks 23 is movably connected with a clamping block 24, both sides of the clamping block 24 are provided with a clamping slot 25, and the bottom of the clamping block 24 is fixedly connected with a forming platform 26, so that the printed objects can be quickly taken out from the inside of the two fixed blocks 20 after printing.

[0047] Reference Figure 1 As shown, specifically, two fixing frames 27 are fixedly connected to the top of the printer body 1, and the inner walls of the two fixing frames 27 are movably connected with resin boxes 28, so that the resin boxes 28 can be stably fixed inside the fixing frames 27, which is convenient for 3D printing.

[0048] Working principle of the utility model: When performing light-curing 3D printing, first pour the resin into the interior of the resin box 28, fix the resin box 28 to the top of the printer body 1 through two fixing frames 27, then push the clamping block 24 on the top of the molding platform 26 into the interior of the two fixing blocks 20, and the two telescopic rods 21 and the spring 22 inside the two fixing blocks 20 push the clamping block 23 to clamp the two sides of the clamping block 24, so that the molding platform 26 can be quickly fixed to the bottom of the two fixing blocks 20, and then the front cover 4 is rotated through the two hinges 3 to close the top of the printer body 1, and then the motor 16 drives the threaded rod 17 to rotate, and the threaded rod 17 drives the slider 19 to slide on the outside of the threaded block 18, so that the slider 19 drives the front molding platform 26 to move downward to the interior of the resin box 28. The printer body 1 then performs a photocuring reaction on the resin inside the resin box 28, so that the resin is formed at the bottom of the forming platform 26. During this process, the fan 8 inhales some toxic gases generated inside the rear cover shell 2 and the front cover shell 4 into the interior of the processing box 9 through the ventilation pipe 6. The water mist nozzle 10 sprays water at the bottom of the processing box 9 to neutralize the toxic gases. The neutralized gas is then subjected to a secondary treatment through the activated carbon board 12 and finally discharged from the filter screen 13 on one side of the processing box 9. The activated carbon board 12 can be pulled out through the slide 11, and the activated carbon board 12 can be quickly replaced. After printing is completed, the front cover shell 4 is rotated upward through the two hinges 3 to adsorb the two magnets 5 on the top of the rear cover shell 2 and the front cover shell 4, so that the front cover shell 4 is quickly fixed on the top of the hinge 3, which is convenient for subsequent object removal.

[0049] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A light-curing 3D printer with a parallel light source, comprising a printer body (1), characterized in that: The rear side of the top of the printer body (1) is fixedly connected to a rear cover shell (2); the top of the rear cover shell (2) is fixedly connected to two hinges (3); the front bottoms of the two hinges (3) are fixedly connected to a front cover shell (4); the tops of the hinges (3) and the front cover shell (4) are fixedly connected to magnets (5); and one side of the rear cover shell (2) is fixedly connected to a ventilation processing mechanism; The ventilation treatment mechanism comprises a ventilation pipe (6), the bottom end of the ventilation pipe (6) is fixedly connected to a fixed pipe (7), the fixed pipe (7) is fixedly connected to a fan (8), the bottom of the fixed pipe (7) is fixedly connected to a treatment box (9), one side of the inner wall of the treatment box (9) is fixedly connected to a water mist nozzle (10), the top of the inner wall of the treatment box (9) is fixedly connected to a slide groove (11), the inside of the slide groove (11) is movably connected to an activated carbon plate (12), one side of the treatment box (9) is fixedly connected to a filter screen (13), and the other side of the top of the treatment box (9) is fixedly connected to a water inlet pipe (14).

2. The light-curing 3D printer with a parallel light source according to claim 1, characterized in that: A sealing ring (15) is fixedly connected to the top of the printer body (1), and a motor (16) is fixedly connected to the rear side of the interior of the printer body (1).

3. The light-curing 3D printer with a parallel light source according to claim 2, characterized in that: The output end of the motor (16) is coaxially connected to a threaded rod (17), the outer side of the threaded rod (17) is movably connected to a threaded block (18), and the outer side of the threaded block (18) is movably connected to a slider (19).

4. The light-curing 3D printer with a parallel light source according to claim 3, characterized in that: The front side of the sliding block (19) is fixedly connected to two fixing blocks (20), and the interiors of the two fixing blocks (20) are fixedly connected to two telescopic rods (21).

5. The light-curing 3D printer with a parallel light source according to claim 4, characterized in that: The outer sides of the two telescopic rods (21) are movably connected to springs (22), and the front ends of the plurality of telescopic rods (21) are fixedly connected to two clamping blocks (23).

6. The light-curing 3D printer with a parallel light source according to claim 5, characterized in that: One side of the two clamping blocks (23) is movably connected to a clamping block (24), both sides of the clamping block (24) are provided with clamping grooves (25), and the bottom of the clamping block (24) is fixedly connected to a molding platform (26).

7. The light-curing 3D printer with a parallel light source according to claim 1, characterized in that: Two fixing frames (27) are fixedly connected to the top of the printer body (1), and resin boxes (28) are movably connected to the inner walls of the two fixing frames (27).

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