FDM 3D printing workpiece post-processing alcohol atomization box

Abstract

The utility model discloses a kind of FDM3D printing workpiece post-processing alcohol atomization box, it is related to 3D printing equipment field, including shell, the inside of shell is provided with inner cabin, the bottom center position of inner cabin is provided with carousel, rotation tray is provided on the carousel, the 3D printing workpiece needing processing is placed on the rotation tray, inner cabin inner wall is provided with multiple atomizing heads, high-pressure water pump and water tank are provided in the bottom of shell inner chamber, alcohol is placed in water tank, the water outlet end of high-pressure water pump is connected with high-pressure water pipe, high-pressure water pump is cooperated with high-pressure water pipe and the high-pressure liquid generated is delivered to atomizing head, after pressurization, alcohol is entered into several atomizing heads by high-pressure water pipe, so that workpiece surface is softened smooth, the surface polishing of printing workpiece is realized, air pipe is blown into atomization box after dry air, so that workpiece surface is rapidly dried, effectively solve the surface polishing problem of printing workpiece, improve polishing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing equipment, specifically an alcohol atomization box for post-processing of FDM 3D printed workpieces. Background Technology

[0002] FDM (Fiber Direct Molding) is currently the most widely used 3D printing technology. The FDM process generally involves heating a solid, low-melting-point filament printing material to a semi-molten state, such as PLA or ABS. Then, it is extruded through the nozzle of a 3D printer, building the object layer by layer according to a predetermined trajectory. For each layer, the worktable descends by one layer thickness or the printing nozzle rises by one layer thickness, and this process is repeated until the entire solid object is built.

[0003] To improve the surface smoothness and gloss of FDM 3D printed products, surface finishing is usually adopted. Existing surface treatment methods mainly include: (1) sanding, manual sanding or sanding with a sander. However, this polishing method is difficult to handle small products, has low sanding efficiency, is time-consuming, and will cause varying degrees of damage to the products. At the same time, the dust generated during the process will cause certain harm to the workers; (2) pearlescent treatment, which uses a nozzle to spray abrasive at high speed onto the polished product to polish it. This method damages the surface of the product and cannot achieve a very smooth finish. It also takes a long time; (3) atomization method, which uses atomized droplets of organic solvents (such as alcohol) to dissolve the product surface to achieve a smoothing effect. Compared with the previous two methods, the atomization method is simple to operate, low in cost, has a good polishing effect, and is easy to promote and use.

[0004] In existing technologies, atomizers polish the surface of 3D printed objects by spraying alcohol into the air. However, with the continuous development of 3D printing technology, there is a need to further improve post-processing efficiency and surface quality. Traditional atomizers cannot meet the surface treatment requirements of rapid spraying, drying, re-spraying, and re-drying. Utility Model Content

[0005] The purpose of this invention is to provide an alcohol atomization box for post-processing of FDM 3D printed workpieces to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An alcohol atomizing box for post-processing of FDM 3D printed workpieces includes an outer shell, an inner chamber inside the outer shell, a turntable at the center of the bottom of the inner chamber, a rotating tray on the turntable, and a 3D printed workpiece to be processed placed on the rotating tray. Multiple atomizing heads are arranged on the inner wall of the inner chamber. A high-pressure water pump and a water tank are arranged at the bottom of the inner cavity of the outer shell. The water tank contains alcohol for surface cleaning. The outlet of the high-pressure water pump is connected to a high-pressure water pipe, which is connected to the multiple atomizing heads. The high-pressure water pump, in cooperation with the high-pressure water pipe, delivers the generated high-pressure liquid to the atomizing heads, which then spray polish the 3D printed workpiece.

[0008] The inner cabin is equipped with a water leakage hole, which is connected to a return water pipe. One end of the return water pipe extends into the water tank. The outer wall of the outer shell is equipped with an air duct, on which an air dryer and a circulating fan are installed. The inner wall of the inner cabin is equipped with an air filter, which is connected to the air inlet of the circulating fan. The circulating fan can draw in misty air and dry it through the air dryer.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: the turntable is a circular plate structure with a concave center and convex edges, and a turntable motor is installed inside the inner cabin, with the rotating end of the turntable motor connected to the turntable.

[0011] In one alternative: a hatch is provided at the external opening of the inner cabin, a hatch sensor is provided on the exterior of the outer shell, and a lighting lamp is provided on the top of the inner cabin.

[0012] In one alternative: a suction pipe is provided between the high-pressure water pump and the water tank, and a filter is provided at one end of the suction pipe that extends into the water tank.

[0013] In one alternative: a controller is provided on the housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The FDM 3D printed workpiece post-processing alcohol atomization box uses a high-pressure water pump to deliver high-pressure liquid to the atomization head through a high-pressure water pipe. The pressurized alcohol then enters several atomization heads through the high-pressure water pipe and is sprayed onto the 3D printed workpiece. This allows the alcohol mist to fully adhere to the outer surface of the 3D printed workpiece, softening and smoothing the surface, thus achieving surface polishing. A duct blows dried air into the atomization box, rapidly drying the workpiece surface. This effectively solves the surface polishing problem of printed workpieces, improves polishing efficiency, and reduces the investment in manual polishing. Attached Figure Description

[0016] Figure 1 This is a front view of the alcohol atomization box for post-processing of FDM 3D printed workpieces.

[0017] Figure 2 This is a 3D structural diagram of the liquid storage tank in the alcohol atomization box for post-processing of FDM 3D printed workpieces.

[0018] Figure 3 An exploded view of the alcohol atomization box for post-processing of FDM 3D printed workpieces.

[0019] Figure 4 This is a schematic diagram of the rotating tray in the alcohol atomization box for post-processing of FDM 3D printed workpieces.

[0020] Figure 5 This is a schematic diagram of the air duct in the alcohol atomization box for post-processing of FDM 3D printed workpieces.

[0021] Figure 6 This is a schematic diagram of the pallet fork in the alcohol atomization box for post-processing of FDM 3D printed workpieces.

[0022] Figure reference numerals: 1. Outer shell; 2. Door; 2-1. Door sensor; 3. Lighting; 4. Air duct; 5. High-pressure water pipe; 6. Atomizing head; 7. Air dryer; 8. Circulating fan; 9. High-pressure water pump; 10. Suction pipe; 11. Filter; 12. Water tank; 13. Alcohol; 14. Return water pipe; 15. Turntable motor; 16. Turntable; 16-1. Rotating tray; 16-2. Tray fork; 17. Inner chamber; 18. Air filter; 19. Controller; 20. 3D printed workpiece. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. In the drawings and description, similar or identical parts are referred to by the same reference numerals, and in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of this utility model. Any obvious modifications or changes made to this utility model do not depart from its spirit and scope.

[0024] In one embodiment, such as Figure 1-6As shown, an FDM 3D printed workpiece post-processing alcohol atomization box includes an outer shell 1, which is used to install the components required for the atomization box. An inner chamber 17 is provided inside the outer shell 1. A turntable 16 is provided at the bottom center of the inner chamber 17. A rotating tray 16-1 is provided on the turntable 16. The 3D printed workpiece 20 to be processed is placed on the rotating tray 16-1. Multiple atomizing heads 6 are provided on the inner wall of the inner chamber 17. A high-pressure water pump 9 and a water tank 12 are provided at the bottom of the inner cavity of the outer shell 1. The high-pressure water pump 9 is used to pressurize alcohol 13 and spray alcohol mist from multiple atomizing heads 6. The water tank 12 contains alcohol 13 for surface cleaning. The outlet of the high-pressure water pump 9 is connected to a high-pressure water pipe 5. The high-pressure water pipe 5 is connected to multiple atomizing heads 6. The high-pressure water pump 9, in cooperation with the high-pressure water pipe 5, delivers the generated high-pressure liquid to the atomizing heads 6. The atomizing heads 6 spray polish the 3D printed workpiece 20.

[0025] The inner chamber 17 is provided with a water leakage hole, which is connected to a return water pipe 14. One end of the return water pipe 14 extends into the water tank 12, which can recover the remaining alcohol 13 after atomization into the water tank 12 for reuse. The outer wall of the outer shell 1 is provided with an air duct 4, on which an air dryer 7 and a circulating fan 8 are provided. The inner wall of the inner chamber 17 is provided with an air filter 18, which is used to filter solid particles in the air. The air filter 18 is connected to the air inlet of the circulating fan 8, which can draw in misty air and dry it through the air dryer 7.

[0026] The high-pressure liquid generated by the high-pressure water pump 9 in the FDM 3D printed workpiece post-processing alcohol atomization box is delivered to the atomization head 6 through the high-pressure water pipe 5. Several atomization heads 6 are arranged inside the atomization box, which can provide atomized liquid to the workpiece surface from multiple directions. The circulating fan 8 draws in the mist-containing air and dries it in the air duct 4 through the air dryer 7. The air duct 4 blows the dried air into the atomization box, so that the workpiece surface dries quickly. As an example, the left, right, up, and down positions of the various components shown in the attached figure are only a kind of arrangement. The specific positions are set according to specific needs.

[0027] In one embodiment, such as Figure 1-4As shown, the turntable 16 is a circular plate structure with a concave center and convex edges to prevent the rotating tray 16-1 on it from slipping out and to ensure that the rotating tray 16-1 is always in the center position of the turntable 16. The rotating tray 16-1 is provided with several top points to prevent the 3D printed workpiece 20 placed on it from slipping. The side of the rotating tray 16-1 is provided with several through holes for inserting tray forks 16-2, so as to facilitate the picking and placing of the rotating tray 16-1. Each atomizing box is equipped with several rotating trays 16-1 to facilitate the turnover and spraying of multiple 3D printed workpieces 20. The inner chamber 17 is equipped with a turntable motor 15. The rotating end of the turntable motor 15 is connected to the turntable 16 and can drive the turntable 16 and the workpiece to rotate.

[0028] In one embodiment, such as Figure 1-3 As shown, a hatch 2 is provided at the external opening of the inner cabin 17, and a hatch sensor 2-1 is provided on the outside of the outer shell 1. The hatch sensor 2-1 is used to detect whether the hatch 2 is closed, and electrical operations can only be performed after the hatch 2 is closed. A lighting lamp 3 is provided on the top of the inner cabin 17 to provide lighting and facilitate the operator to observe the working status inside the inner cabin 17.

[0029] In one embodiment, such as Figure 1-3 As shown, a suction pipe 10 is provided between the high-pressure water pump 9 and the water tank 12. A filter 11 is provided at one end of the suction pipe 10 that enters the water tank 12. The filter 11 is used to filter the residue in the alcohol 13 to prevent the atomizing head 6 from being blocked.

[0030] In one embodiment, such as Figure 1-2 As shown, the outer casing 1 is equipped with a controller 19, which is used to control the rotation of the turntable 16, the spraying action of the high-pressure water pump 9, the blowing action of the circulating fan 8, and the heating of the air dryer 7. At the same time, it collects the door closing signal of the door sensor 2-1 to confirm whether other components have started working.

[0031] The above embodiments of this utility model provide an alcohol atomization box for post-processing of FDM 3D printed workpieces. The use of the atomization box includes the following steps:

[0032] 1) Open the hatch 2 and place the rotating tray 16-1 containing the 3D printed workpiece 20 into the center of the turntable 16 using the tray fork 16-2. Make sure the rotating tray 16-1 is locked into the edge of the turntable 16 to ensure that the rotating tray 16-1 will not slip out when rotating.

[0033] 2) When the hatch 2 is closed, the controller 19 detects the closing signal from the hatch sensor 2-1 and starts the atomization process.

[0034] 3) The turntable motor 15 drives the turntable 16 to rotate, and the workpiece on the rotating tray 16-1 rotates synchronously. At the same time, the high-pressure water pump 9 starts, and the alcohol 13 enters the high-pressure water pump 9 through the filter 11 and the suction pipe 10. The pressurized alcohol 13 enters several atomizing heads 6 through the high-pressure water pipe 5 and is sprayed onto the 3D printed workpiece 20.

[0035] 4) After 5-10 seconds of the action in step 3, the alcohol mist fully adheres to all surfaces of the 3D printed workpiece 20, the high-pressure water pump 9 stops working, and the turntable 16 continues to rotate.

[0036] 5) After polishing the 3D printed workpiece 20 with alcohol mist for 30 minutes, the circulating fan 8 and air dryer 7 are started to blow the dried air into the chamber through the air duct 4. The air with alcohol mist enters the circulating fan 8 through the air filter 18. After the dry air is circulated for 10 minutes, the surface of the 3D printed workpiece 20 is dry.

[0037] 6) Stop the machine and check whether the surface of the 3D printed workpiece 20 has reached a smooth state. If it has not reached the expected state, repeat steps 3-5.

[0038] 7) Once the desired surface condition is achieved, stop the machine, open the hatch 2, use the pallet fork 16-2 to remove the rotating pallet 16-1 for later use, and remove the 3D printed workpiece 20.

[0039] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An alcohol atomizing box for post-processing of FDM 3D printed workpieces, comprising a shell, characterized in that, The outer shell contains an inner chamber with a turntable at the bottom center. A rotating tray is mounted on the turntable, and the 3D printed workpiece to be processed is placed on the rotating tray. Multiple atomizing heads are installed on the inner wall of the inner chamber. A high-pressure water pump and a water tank are located at the bottom of the outer shell cavity. The water tank contains alcohol for surface cleaning. The outlet of the high-pressure water pump is connected to a high-pressure water pipe, which is connected to the multiple atomizing heads. The high-pressure water pump, in conjunction with the high-pressure water pipe, delivers the generated high-pressure liquid to the atomizing heads, which then spray and polish the 3D printed workpiece. The inner cabin is equipped with a water leakage hole, which is connected to a return water pipe. One end of the return water pipe extends into the water tank. The outer wall of the outer shell is equipped with an air duct, on which an air dryer and a circulating fan are installed. The inner wall of the inner cabin is equipped with an air filter, which is connected to the air inlet of the circulating fan. The circulating fan can draw in misty air and dry it through the air dryer.

2. The FDM 3D printed workpiece post-processing alcohol atomization box according to claim 1, characterized in that, The turntable is a circular plate structure with a concave center and convex edges. A turntable motor is installed inside the inner cabin, and the rotating end of the turntable motor is connected to the turntable.

3. The FDM 3D printed workpiece post-processing alcohol atomization box according to claim 1, characterized in that, The inner cabin is equipped with a hatch at its external opening, the outer shell is equipped with a hatch sensor, and the top of the inner cabin is equipped with a lighting lamp.

4. The FDM 3D printed workpiece post-processing alcohol atomization box according to claim 1, characterized in that, A suction pipe is installed between the high-pressure water pump and the water tank, and a filter is installed at one end of the suction pipe that goes into the water tank.

5. The FDM 3D printed workpiece post-processing alcohol atomization box according to claim 2, characterized in that, A controller is installed on the outer casing.

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