A device for separating resin from light-cured 3D printed parts

By designing a resin separation device for light-cured 3D printed parts and utilizing centrifugal force and a circulating cleaning liquid structure, the problem of high-pressure gas being unable to completely clean the flowing resin was solved. The flowing resin was recovered and the cleaning liquid was recycled, thereby improving printing efficiency and cleaning effects.

CN120481283BActive Publication Date: 2025-09-23QUANZHOU FUYAO NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202510973103.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-15
Publication Date
2025-09-23
Estimated Expiration
2045-07-15

AI Technical Summary

Technical Problem

In existing light-curing 3D printing technology, high-pressure gas cannot completely clean the flowing resin on the surface of the printed part, resulting in waste.

Method used

A resin separation device for photocurable 3D printed parts was designed. The separation component and air tube structure were used to generate centrifugal force to blow out the flowing resin. The limit frame and gear meshing were used to achieve the recycling of cleaning fluid and deep cleaning of printed parts. The spiral protrusion structure was combined to guide the airflow and dry the printed parts.

Benefits of technology

It achieves efficient recovery of flowing resin and recycling of cleaning fluid, improves printing efficiency and reduces resin waste, ensuring a clean surface of printed parts and good drying effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of photocuring 3D printing, and specifically to a resin separation device for photocuring 3D printed parts, comprising a main body, a separation component rotatably installed in the main body, a plurality of mounting slots provided in the separation component, and a printing plate with a printed part mounted on the separation component through the mounting slots; a limit frame, the limit frame being sleeved on the outer side of the separation component, and the structure of the separation component and the air pipe enables the printed part to generate centrifugal force when receiving the airflow, thereby blowing out the flowing resin on the surface of the photocuring 3D printed part, and the centrifugal force can throw out the resin that cannot be blown by the airflow, so that the flowing resin falls to the bottom of the separation component, enters a collection tank under the centrifugal force and is discharged outwardly, and the rotating state of the separation component prevents the flowing resin from adhering to the surface of the printed part or the inside of the discharge pipe due to its high viscosity, so that this part of the flowing resin can be recovered.
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Description

Technical Field

[0001] The present invention relates to the technical field of photocuring 3D printing, and in particular to a device for separating resin from photocuring 3D printed parts. Background Art

[0002] A photocuring 3D printer is a computer-assisted device that uses photocuring technology to achieve object molding. It uses layered curing of liquid photosensitive resin to construct three-dimensional models. Compared with fused deposition modeling technology, this device has higher printing accuracy and surface smoothness, can achieve a layer-free effect and the finished product is stronger. As of 2021, this technology has been widely used in the fields of figure making, industrial design, dental medicine, jewelry customization, and animation models.

[0003] In the prior art, the residual fluid resin on the surface of the printed part is blown out by high-pressure gas, and then cleaned with a cleaning liquid.

[0004] However, the flowing resin on the surface of the printed part can be reused. Due to its fixed direction, the high-pressure gas cannot completely clean the flowing resin on the surface of the printed part, resulting in waste. Summary of the Invention

[0005] The purpose of the present invention is to provide a resin separation device for photocuring 3D printed parts to solve the problems raised by the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A device for separating resin from a light-cured 3D printed part, comprising:

[0008] A main body, wherein a separation component is rotatably mounted in the main body, wherein a plurality of mounting slots are provided in the separation component, and a printing plate with a printed part is mounted on the separation component through the mounting slots;

[0009] A limiting frame is sleeved on the outside of the separation component, and the limiting frame controls the separation component to slide up and down. A partition is also sleeved on the outside of the separation component, and the partition blocks the water outlet on the surface of the separation component;

[0010] The separation component is provided with a collecting tank for collecting the photosensitive resin inside, and the inner wall of the separation component is provided with a guide groove and a through hole connected to the collecting tank. A guide tube is installed below the collecting tank to guide the separated photosensitive resin out of the main body;

[0011] The bottom of the main body stores a cleaning liquid for cleaning printed parts, and a water tank is installed at an upper corner of the main body. A nozzle for spraying cleaning liquid into the separation component is provided in the water tank. A circulation component for transporting the cleaning liquid into the water tank is also provided in the main body.

[0012] A motor is provided above the main body, and the motor drives the separation component to rotate in the limiting frame.

[0013] Furthermore, a plurality of supporting legs are provided at the bottom of the main body, an observation port is provided on the side wall of the main body, and an outlet for discharging the cleaning liquid inside the main body is also provided at the bottom of the main body. An upper cover is installed on the top of the main body, and the motor is installed on the upper cover. A connecting plate is fixedly connected to one side of the upper cover, and a cylinder is fixedly connected to the outer wall of the main body below the connecting plate. The cylinder drives the upper cover to slide vertically above the main body to open the top of the main body.

[0014] Furthermore, the separation component is a cavity with an opening at the top, and the mounting groove is arranged on the inner wall of the bottom of the separation component cavity. Clamps are slidably connected on both sides of the mounting groove, and the clamps clamp the printing plate in the mounting groove. A spring is arranged on the other side of the clamp, and the two ends of the spring are fixedly connected to the clamp and the inner wall of the separation component respectively.

[0015] Furthermore, a plurality of water outlets for discharging the cleaning liquid inside the separation component are provided on the side wall of the cavity, and a sealing gasket is provided on the inner wall of the partition to seal the water outlets located inside the sealing gasket.

[0016] Furthermore, the guide groove is provided at the bottom of the separation component cavity, the collection groove is provided in the middle of the inner wall below the separation component, the guide groove and the collection groove are connected through a plurality of through holes, the collection groove is provided in a truncated cone shape, a guide tube is connected below the collection groove, the sealing column below the guide tube vertically passes through the bottom of the main body, the sealing column and the side wall of the guide tube are sealed, and the guide tube is controlled to switch by a valve.

[0017] Furthermore, a groove is provided on the outer wall of the separation component, and a convex ring is fixedly connected to the inner wall of the limit frame, and the convex ring is stuck in the groove, so that the separation component rotates in the limit frame, and a connecting rod is fixedly connected to the outer side of the limit frame, and a lifting block is installed on the other end of the connecting rod, and the lifting block is sleeved on the screw rod, and the lifting block is threadedly connected to the screw rod, and the upper and lower ends of the screw rod are respectively rotatably mounted on the fixed seat, and the fixed seat is mounted on the inner wall of the main body, and a motor that drives the screw rod to rotate is installed on the upper fixed seat.

[0018] Furthermore, a first gear is installed at the bottom of the separation component, and a second gear is fixedly connected to the outer wall of the circulation component. The first gear and the second gear are engaged for transmission. The rotation radius of the first gear is greater than the rotation radius of the second gear. The lower end of the circulation component is rotatably connected to the inner wall of the bottom of the main body. A plurality of notches are provided on the bottom side wall of the circulation component, and the cleaning liquid at the bottom of the main body enters the circulation component through the notches.

[0019] Furthermore, the upper end of the circulation component penetrates into the water tank, and a sealing ring is installed on the upper end of the circulation component to prevent the cleaning liquid from flowing out from the connection between the circulation component and the water tank. A propulsion column is vertically arranged in the circulation component, and the propulsion column is fixedly connected to the inner wall of the main body. The inner wall of the circulation component and the propulsion column rotate relative to each other, and the surface of the propulsion column is provided with a spiral blade that propels the cleaning liquid to flow upward.

[0020] Furthermore, a telescopic shaft is connected to the lower transmission of the motor, and the end of the telescopic shaft is fixed to the separation assembly. The motor drives the separation assembly to rotate through the telescopic shaft. An air pipe is provided on the outer side of the telescopic shaft. The air pipe is a cavity structure with an opening at the bottom. The air pipe is connected to the inner wall of the main body through a rod. A plurality of air outlets are provided on the side wall of the air pipe. The air pipe blows the internal gas toward the printed part through the air outlet.

[0021] Furthermore, an air guide tube is installed on the upper side of the air tube, which introduces external air into the air tube. A spiral protrusion is provided on the outer wall of the telescopic shaft to push the gas in the air tube downward and diffuse the gas outward. The gas discharged from the bottom of the air tube and the air outlet is blown toward the printed part to form hot air.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention utilizes the structure of the separation assembly and the air pipe, so that when the printed part receives airflow, centrifugal force is generated, blowing out the liquid resin on the surface of the light-cured 3D printed part. The centrifugal force can also fling out resin that cannot be reached by the airflow, causing the liquid resin to fall to the bottom of the separation assembly. Under the centrifugal force, it enters the collection tank and is discharged outward. The rotation of the separation assembly prevents the liquid resin from adhering to the surface of the printed part or the inside of the discharge pipe due to its high viscosity, allowing this part of the liquid resin to be recovered.

[0024] 2. The separation assembly is driven downward by the limit frame, connecting the separation assembly to the main body. Cleaning liquid is sprayed into the separation assembly to rinse and deeply clean the printed parts. Cleaning liquids such as alcohol are used to decompose some stubborn resin. The engagement of the first and second gears causes the circulation assembly to rotate, transporting the cleaning liquid in the main body back to the water tank, realizing the recycling of the cleaning liquid.

[0025] 3. Through the spiral protrusion structure on the surface of the telescopic shaft, when it rotates relative to the air pipe, the airflow is spirally guided downward, so that the airflow leaving the air pipe diffuses outward. While blowing away some of the flowing resin on the surface of the printed part, it can also dry the printed part after the resin separation is completed, thereby improving the efficiency of light-curing 3D printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the main body of the present invention;

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0030] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0031] Figure 6 It is a schematic diagram of the longitudinal section structure of the present invention;

[0032] Figure 7 Schematic diagram of the cross-sectional structure of the circulation component of the present invention;

[0033] Figure 8 It is a schematic diagram of a partial cross-sectional structure of a separation component of the present invention;

[0034] Figure 9 For the present invention Figure 8 The enlarged structural diagram at C in the middle;

[0035] Figure 10 It is a schematic diagram of the separation component structure of the present invention.

[0036] In the figure: 1. main body; 11. supporting leg; 12. observation port; 13. discharge port; 14. sealing column; 2. upper cover; 21. connecting plate; 22. cylinder; 3. separation component; 31. water outlet; 32. guide groove; 33. groove; 34. first gear; 35. collecting tank; 36. through hole; 37. guide tube; 4. partition; 41. sealing gasket; 5. splint; 51. spring; 6. limit frame; 61. convex ring; 62. connecting rod; 63. lifting block; 64. screw; 65. fixing seat; 7. water tank; 71. nozzle; 8. circulation component; 81. second gear; 82. notch; 83. propulsion column; 84. sealing ring; 9. motor; 91. telescopic shaft; 10. air pipe; 101. air outlet; 102. air guide pipe. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0038] See also Figures 1 to 10 The present invention provides a technical solution: a device for separating resin from a photocurable 3D printed part, comprising a main body 1, wherein a separation component 3 is rotatably mounted in the main body 1, wherein the separation component 3 is provided with a plurality of mounting slots, and a printing plate with a printed part is mounted on the separation component 3 through the mounting slots;

[0039] After printing, the photocurable 3D printed part will still adhere to the printing plate. The printing plate is removed from the 3D printer and placed into the mounting slot with the side with the 3D printed part facing up so that the printed part is located in the separation component 3.

[0040] A limiting frame 6 is sleeved on the outside of the separation component 3. The limiting frame 6 controls the separation component 3 to slide up and down. A partition 4 is also sleeved on the outside of the separation component 3. The partition 4 blocks the water outlet 31 on the surface of the separation component 3.

[0041] The side wall of the cavity of the separation component 3 is provided with a plurality of water outlets 31 for discharging the cleaning liquid therein, and the inner wall of the partition 4 is provided with a sealing gasket 41, which blocks the water outlets 31 located therein.

[0042] The limit frame 6 controls the separation component 3 to slide upward, so that the water outlet 31 slides into the partition 4, and the water outlet 31 is blocked by the sealing gasket 41. The limit frame 6 drives the separation component 3 to slide downward, so that the water outlet 31 slides to the bottom of the partition 4. At this time, a cleaning liquid such as alcohol is injected into the separation component 3, which can dissolve some of the stubborn resin remaining on the surface of the print, and flow out from the water outlet 31.

[0043] The separation assembly 3 is provided with a collecting tank 35 for collecting the photosensitive resin. The inner wall of the separation assembly 3 is provided with a guide groove 32 and a through hole 36 connected to the collecting tank 35. A guide tube 37 is installed below the collecting tank 35 to guide the separated photosensitive resin out of the main body 1.

[0044] After the partition 4 blocks the water outlet 31, the separation component 3 is controlled to rotate, so that the printed part in the separation component 3 also rotates, and part of the resin adhering to the surface of the printed part is thrown out by centrifugal force, so that the resin is separated from the printed part. Under the action of centrifugal force, the liquid resin moves outward from the surface of the separation component 3, enters the collection tank 35 through the guide groove 32 and the through hole 36, and this part of the resin is led out of the main body 1 through the guide tube 37 for recycling and cost saving.

[0045] The bottom of the main body 1 stores cleaning liquid for cleaning printed parts. A water tank 7 is installed at an upper corner of the main body 1. A nozzle 71 is provided in the water tank 7 to spray the cleaning liquid into the separation component 3. The main body 1 is also provided with a circulation component 8 to transport the cleaning liquid into the water tank 7.

[0046] The cleaning liquid in the water tank 7 is sprayed toward the top of the separation component 3 through the nozzle 71. As the separation component 3 rotates, the stubborn resin remaining on the surface of several printed parts in the separation component 3 is flushed and removed. The nozzle 71 can be provided with a switch valve to control the switch and the spraying flow of the nozzle 71 from the outside. The circulation component 8 transports the cleaning liquid at the bottom of the main body 1 to the water tank 7 again, thereby realizing the recycling of the cleaning liquid.

[0047] A motor 9 is provided above the main body 1 , and the motor 9 drives the separation component 3 to rotate within the limiting frame 6 .

[0048] The bottom of the main body 1 is provided with a plurality of supporting legs 11 , the side wall of the main body 1 is provided with an observation port 12 , and the lower part of the main body 1 is also provided with a discharge port 13 for discharging the cleaning liquid inside the main body 1 to the outside.

[0049] After the resin separation of the printed part is completed, the discharge port 13 is opened to discharge the cleaning liquid in the bottom of the main body 1 and the water tank 7, and the resin dissolved by the cleaning liquid such as alcohol is separated or otherwise processed so that the cleaning liquid can be reused.

[0050] An upper cover 2 is installed on the top of the main body 1, and the motor 9 is installed on the upper cover 2. A connecting plate 21 is fixedly connected to one side of the upper cover 2. A cylinder 22 is fixedly connected to the outer wall of the main body 1 below the connecting plate 21. The cylinder 22 drives the upper cover 2 to slide vertically above the main body 1 so that the top of the main body 1 is opened.

[0051] The upper cover 2 is controlled by the cylinder 22 to move vertically upwards, opening the upper part of the main body 1 so that the printed part can be installed on or removed from the separation assembly 3.

[0052] The separation component 3 is a cavity with an opening at the top, and the installation groove is provided on the inner wall of the bottom of the cavity of the separation component 3. Clamps 5 are slidably connected on both sides of the installation groove. The clamps 5 clamp the printing plate in the installation groove. A spring 51 is provided on the other side of the clamp 5. The two ends of the spring 51 are fixedly connected to the clamp 5 and the inner wall of the separation component 3 respectively.

[0053] The spring 51 exerts an inward force on the clamping plate 5, causing the clamping plate 5 to always move into the mounting slot. That is, after different types of printing plates are placed in the mounting slot, the clamping plate 5 can clamp and fix the printing plates, preventing the printed parts and the printing plates from tipping over during the rotation of the separation assembly 3.

[0054] The guide groove 32 is provided at the bottom of the cavity of the separation component 3, and the collection groove 35 is provided in the middle of the inner wall below the separation component 3. The guide groove 32 and the collection groove 35 are connected through a plurality of through holes 36. The collection groove 35 is provided in a truncated cone shape. A guide tube 37 is connected below the collection groove 35. The sealing column 14 below the main body 1 is vertically passed through below the guide tube 37. The sealing column 14 is sealed from the side wall of the guide tube 37, and the guide tube 37 is controlled to switch by a valve.

[0055] After the separation assembly 3 rotates, the centrifugal force throws out the resin in the shallow layer on the surface of the printed workpiece, and at the same time, throws out the resin that has fallen into the bottom of the cavity of the separation assembly 3. As a result, the resin in the shallow layer on the surface of the printed workpiece moves toward the guide groove 32 outside the separation assembly 3, enters the collection groove 35 through the through hole 36 on the guide groove 32, and flows to the bottom of the collection groove 35 through the inner wall of the oblique side below the collection groove 35. Then, it enters the guide tube 37 and is discharged outward. During this process, the separation assembly 3 remains in a rotating state to prevent the resin from adhering to the inner wall of the collection groove 35 or the guide tube 37 due to excessive viscosity.

[0056] When the printed part is subjected to the second step of deep cleaning, the guide tube 37 is closed, so that the cleaning liquid enters the collection tank 35 and the guide tube 37 and remains inside them, and all channels through which the resin flows are also cleaned to avoid blockage of the pipeline caused by some resin.

[0057] A groove 33 is provided on the outer wall of the separation component 3, and a convex ring 61 is fixedly connected to the inner wall of the limit frame 6. The convex ring 61 is stuck in the groove 33, so that the separation component 3 rotates in the limit frame 6, and a connecting rod 62 is fixedly connected to the outer side of the limit frame 6. A lifting block 63 is installed at the other end of the connecting rod 62. The lifting block 63 is sleeved on the screw rod 64, and the lifting block 63 is threadedly connected to the screw rod 64. The upper and lower ends of the screw rod 64 are respectively rotatably mounted on the fixed seat 65, and the fixed seat 65 is mounted on the inner wall of the main body 1. A motor that drives the screw rod 64 to rotate is installed on the upper fixed seat 65.

[0058] Through the structure of the groove 33 and the convex ring 61, the separation component 3 is rotatably installed on the limit frame 6. The rotation of the screw rod 64 is controlled by the motor, so that the lifting block 63 moves up and down on the screw rod 64, thereby realizing the up and down movement of the limit frame 6 and controlling the separation component 3 to move up and down. When moving upward, the water outlet 31 is blocked. At this time, the resin on the surface of the printed part is separated by centrifugal force. This part of the resin is reusable and collected.

[0059] A first gear 34 is installed at the bottom of the separation component 3, and a second gear 81 is fixedly connected to the outer wall of the circulation component 8. The first gear 34 and the second gear 81 are engaged and transmitted. The rotation radius of the first gear 34 is greater than the rotation radius of the second gear 81. The lower end of the circulation component 8 is rotatably connected to the inner wall of the bottom of the main body 1. A plurality of notches 82 are provided on the bottom side wall of the circulation component 8. The cleaning liquid at the bottom of the main body 1 enters the circulation component 8 through the notches 82.

[0060] The upper end of the circulation component 8 penetrates into the water tank 7. The upper end of the circulation component 8 is installed with a sealing ring 84 to prevent the cleaning liquid from flowing out from the connection between the circulation component 8 and the water tank 7. A propulsion column 83 is vertically arranged in the circulation component 8. The propulsion column 83 is fixedly connected to the inner wall of the main body 1. The inner wall of the circulation component 8 and the propulsion column 83 rotate relative to each other. The surface of the propulsion column 83 is provided with a spiral blade for propelling the cleaning liquid to flow upward.

[0061] After the limiting frame 6 drives the separation component 3 to slide downward, the first gear 34 engages with the second gear 81 for transmission, so that the rotation of the separation component 3 drives the circulation component 8 to rotate, so that the circulation component 8 is propelled. Since the rotation radius of the first gear 34 is greater than the rotation radius of the second gear 81, relative rotation occurs between the circulation component 8 and the propulsion column 83. The spiral blades on the surface of the propulsion column 83 are used to transport the cleaning liquid entering the circulation component 8 from the slot 82 upward to the water tank 7. Since the rotation radius of the first gear 34 is greater than the rotation radius of the second gear 81, the rotation rate of the circulation component 8 driven by the second gear 81 is accelerated to improve the circulation efficiency of the cleaning liquid.

[0062] The motor 9 is connected to a telescopic shaft 91 at its lower transmission position, and the end of the telescopic shaft 91 is fixed to the separation component 3. The motor 9 drives the separation component 3 to rotate through the telescopic shaft 91. An air pipe 10 is sleeved on the outer side of the telescopic shaft 91. The air pipe 10 is a hollow structure with an opening at the bottom. The air pipe 10 is connected to the inner wall of the main body 1 through a rod. A plurality of air outlets 101 are provided on the side wall of the air pipe 10. The air pipe 10 blows the internal gas toward the printed part through the air outlet 101.

[0063] An air guide tube 102 is also installed on the upper side of the air tube 10. The air guide tube 102 introduces external air into the air tube 10. A spiral protrusion is provided on the outer wall of the telescopic shaft 91 to push the gas in the air tube 10 downward and diffuse the gas outward. The gas discharged from the bottom of the air tube 10 and the air outlet 101 is blown toward the printed part to form hot air.

[0064] The telescopic structure of the telescopic shaft 91 ensures that the up and down movement of the separation assembly 3 and the opening and closing of the upper cover 2 will not affect the normal use of the device.

[0065] The hot air in the external component is guided into the air pipe 10 through the structure of the air guide 102. Since the spiral protrusions are provided on the outer wall of the telescopic shaft 91, when the telescopic shaft 91 and the air pipe 10 rotate relative to each other, the hot air is stirred into a spiral airflow, and the airflow is pulled downward. After the airflow exits the air outlet 101 and the bottom of the air pipe 10, it immediately diffuses outward and blows towards the printed part, blowing out the surface resin and improving the efficiency of resin centrifugal separation.

[0066] The hot air in the external component can control the temperature to prevent the uncured resin from suddenly solidifying, and at the same time dry the printed part after deep cleaning with the cleaning fluid.

[0067] The present embodiment is specifically as follows:

[0068] The printed part is installed in the separation assembly 3. The separation assembly 3 is controlled to rise by the limit frame 6, so that the partition 4 blocks the water outlet 31. At this time, the centrifugal force of the rotation and the airflow diffused outward from the air pipe 10 push the resin on the surface of the printed part outward, so that the surface resin is separated and discharged to the outside of the main body 1 through several pipes for collection. This part of the liquid resin can be reused.

[0069] After the separation of the surface flowing resin is completed, the limit frame 6 drives the separation component 3 to descend, so that the water outlet 31 is opened, and the first gear 34 is engaged with the second gear 81, controlling the nozzle 71 to spray the cleaning liquid downward to deeply clean the surface of the printed part, and the cleaning liquid falls from the water outlet 31 to the bottom of the main body 1, and enters the water tank 7 through the circulation component 8 to realize circulation, and part of the cleaning liquid enters the pipeline in the resin separation and collection process, and these pipelines are cleaned synchronously. After completion, the printed part is dried by the hot air sprayed from the air pipe 10, and the discharge port 13 is opened to discharge the cleaning liquid after the resin is dissolved.

[0070] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for separating resin from a light-cured 3D printed part, characterized in that: include: A main body (1), wherein a separation component (3) is rotatably mounted in the main body (1), wherein a plurality of mounting slots are provided in the separation component (3), and a printing plate with a printing part is mounted on the separation component (3) through the mounting slots; A limiting frame (6), the limiting frame (6) is sleeved on the outside of the separation component (3), the limiting frame (6) controls the separation component (3) to slide up and down, and a partition (4) is also sleeved on the outside of the separation component (3), and the partition (4) blocks the water outlet (31) on the surface of the separation component (3); The separation component (3) is provided with a collecting groove (35) for collecting the photosensitive resin inside, and the inner wall of the separation component (3) is provided with a guide groove (32) and a through hole (36) communicating with the collecting groove (35), and a guide tube (37) is installed below the collecting groove (35) for guiding the separated photosensitive resin out of the main body (1); The bottom of the main body (1) stores a cleaning liquid for cleaning the printed part, and a water tank (7) is installed at an upper corner of the main body (1). A nozzle (71) is provided in the water tank (7) for spraying the cleaning liquid into the separation component (3). The main body (1) is also provided with a circulation component (8) for transporting the cleaning liquid into the water tank (7); A motor (9) is provided above the main body (1), and the motor (9) drives the separation component (3) to rotate within the limiting frame (6).

2. The device for separating resin from a light-cured 3D printed part according to claim 1, characterized in that: The bottom of the main body (1) is provided with a plurality of supporting legs (11), the side wall of the main body (1) is provided with an observation port (12), and the bottom of the main body (1) is also provided with an outlet (13) for discharging the cleaning liquid inside the main body (1) to the outside. The top of the main body (1) is provided with an upper cover (2), the motor (9) is installed on the upper cover (2), one side of the upper cover (2) is fixedly connected to a connecting plate (21), and the outer wall of the main body (1) below the connecting plate (21) is fixedly connected to a cylinder (22), and the cylinder (22) drives the upper cover (2) to slide vertically above the main body (1) so that the top of the main body (1) is opened.

3. The device for separating resin from a light-cured 3D printed part according to claim 1, wherein: The separation component (3) is a cavity with an opening at the top, and a mounting groove is provided on the inner wall of the bottom of the cavity of the separation component (3). Clamps (5) are slidably connected to both sides of the mounting groove, and the clamps (5) clamp the printing plate in the mounting groove. A spring (51) is provided on the other side of the clamp (5), and the two ends of the spring (51) are fixedly connected to the clamp (5) and the inner wall of the separation component (3).

4. The device for separating resin from a light-cured 3D printed part according to claim 3, characterized in that: A plurality of water outlets (31) for discharging the cleaning liquid inside the separation component (3) are provided on the side wall of the cavity, and a sealing gasket (41) is provided on the inner wall of the partition (4), and the sealing gasket (41) blocks the water outlets (31) located inside the sealing gasket.

5. The device for separating resin from a light-cured 3D printed part according to claim 4, characterized in that: The guide groove (32) is provided at the bottom of the cavity of the separation component (3), and the collection groove (35) is provided in the middle of the inner wall below the separation component (3). The guide groove (32) and the collection groove (35) are connected through a plurality of through holes (36). The collection groove (35) is provided in a truncated cone shape. A guide tube (37) is connected below the collection groove (35). The guide tube (37) vertically passes through the sealing column (14) below the main body (1). The sealing column (14) and the side wall of the guide tube (37) are sealed, and the guide tube (37) is controlled to open or close by a valve.

6. The device for separating resin from a light-cured 3D printed part according to claim 1, characterized in that: A groove (33) is provided on the outer wall of the separation component (3), a convex ring (61) is fixedly connected to the inner wall of the limiting frame (6), and the convex ring (61) is snapped into the groove (33), so that the separation component (3) rotates in the limiting frame (6), and a connecting rod (62) is fixedly connected to the outer side of the limiting frame (6), and a lifting block (63) is installed on the other end of the connecting rod (62), and the lifting block (63) is sleeved on the screw rod (64). The lifting block (63) is threadedly connected to the screw rod (64), and the upper and lower ends of the screw rod (64) are rotatably mounted on the fixed seat (65) respectively, and the fixed seat (65) is mounted on the inner wall of the main body (1). A motor for driving the screw rod (64) to rotate is installed on the upper fixed seat (65).

7. The device for separating resin from a light-cured 3D printed part according to claim 1, characterized in that: A first gear (34) is installed at the bottom of the separation component (3), and a second gear (81) is fixedly connected to the outer wall of the circulation component (8). The first gear (34) and the second gear (81) are meshed and driven. The rotation radius of the first gear (34) is larger than the rotation radius of the second gear (81). The lower end of the circulation component (8) is rotatably connected to the inner wall of the bottom of the main body (1). A plurality of notches (82) are provided on the side wall of the bottom of the circulation component (8), and the cleaning liquid at the bottom of the main body (1) enters the circulation component (8) through the notches (82).

8. The device for separating resin from a light-cured 3D printed part according to claim 7, characterized in that: The upper end of the circulation component (8) penetrates into the water tank (7), and a sealing ring (84) is installed on the upper end of the circulation component (8) to prevent the cleaning liquid from flowing out from the connection between the circulation component (8) and the water tank (7). A propulsion column (83) is vertically arranged in the circulation component (8), and the propulsion column (83) is fixedly connected to the inner wall of the main body (1). The inner wall of the circulation component (8) and the propulsion column (83) rotate relative to each other, and the surface of the propulsion column (83) is provided with a spiral blade for propelling the cleaning liquid to flow upward.

9. The device for separating resin from a light-cured 3D printed part according to claim 1, characterized in that: The motor (9) is connected to a telescopic shaft (91) at its lower transmission portion, the end of the telescopic shaft (91) being fixed to the separation assembly (3), the motor (9) driving the separation assembly (3) to rotate via the telescopic shaft (91), an air tube (10) being sleeved on the outer side of the telescopic shaft (91), the air tube (10) being a hollow structure with an opening at the lower portion, the air tube (10) being connected to the inner wall of the main body (1) via a rod, a plurality of air outlets (101) being provided on the side wall of the air tube (10), the air tube (10) blowing the internal gas toward the printed part via the air outlets (101).

10. The device for separating resin from a light-cured 3D printed part according to claim 9, characterized in that: An air guide tube (102) is further installed on one side above the air tube (10), and the air guide tube (102) introduces external air into the air tube (10). A spiral protrusion is provided on the outer wall of the telescopic shaft (91), which pushes the air in the air tube (10) downward and diffuses the air outward. The air discharged from the bottom of the air tube (10) and the air outlet (101) is blown toward the printed part to form hot air.

Citation Information

Patent Citations

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