3D printing UV light curing light source

Abstract

The utility model provides a 3D printing UV light curing light source which comprises a mounting base, a stand column is vertically arranged at the top of the mounting base, a containing table is horizontally arranged at the top of the stand column, a supporting sleeve is coaxially and rotatably mounted below the stand column and driven by a driving device to rotate, and at least one supporting arm is horizontally mounted on the side face of the supporting sleeve. A supporting rod is vertically arranged at the tail end of the supporting arm and located on the peripheral side of the containing table, a linear driving device distributed in the length direction of the supporting rod is arranged on the side face of the supporting rod, a strip-shaped UV light-emitting body is installed on the linear driving device, and the UV light-emitting body is driven by the linear driving device to extend to the position above the containing table. And the UV luminous body rotates around the peripheral side of the placing table along with the rotation of the supporting sleeve. When the UV light curing device is used, the UV light curing light source can rise along with the rise of the height of a workpiece, and the light source can rotate around the workpiece all the time, so that optical fibers uniformly irradiate the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing curing light source technology, specifically a 3D printing UV light curing light source. Background Technology

[0002] 3D printing is a technology that creates three-dimensional objects by stacking materials layer by layer. It uses computer-generated three-dimensional model data and a 3D printer to stack powdered, liquid, or filament materials layer by layer to form a complete three-dimensional entity.

[0003] However, photocuring is necessary when printing photosensitive resin materials because these resins undergo a polymerization reaction upon exposure to light of a specific wavelength, thus solidifying into a solid. In reality, most photosensitive resin materials require secondary photocuring after molding. This secondary curing enhances the model's stability and strength, and improves surface quality and detail clarity. Existing curing light sources require placing the printed workpiece inside the light source for a certain period after printing to complete the curing process, which is time-consuming and labor-intensive, and cannot be performed during the printing process. Therefore, we propose a 3D printing UV curing light source. Utility Model Content

[0004] This invention provides a 3D printing UV curing light source, which has the advantages of allowing the UV curing light source to rise with the height of the workpiece and that the light source can always rotate around the workpiece, thus solving the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: A 3D printing UV curing light source is designed, including a mounting base, a column is vertically provided on the top of the mounting base, a placement platform is horizontally provided on the top of the column, a support sleeve is coaxially and rotatably installed below the column, the support sleeve is driven to rotate by a driving device, at least one support arm is horizontally installed on the side of the support sleeve, a support rod is vertically provided at the end of the support arm, the support rod is located around the placement platform, a linear driving device is provided on the side of the support rod along its length direction, a strip-shaped UV light emitter is installed on the linear driving device, the UV light emitter extends above the placement platform under the drive of the linear driving device, and the UV light emitter rotates around the placement platform as the support sleeve rotates.

[0006] Preferably, the driving device includes a drive motor, which is mounted on the mounting base and located on one side of the support rod. The drive motor shaft and the bottom side of the support sleeve are both coaxially provided with transmission gears, and the two transmission gears mesh with each other.

[0007] Preferably, the linear drive device includes a lead screw located on one side of the support rod, a lead screw threaded with a lead nut, both ends of the lead screw being rotatably connected to the support rod, the bottom of the lead screw being connected to an adjusting motor, a guide rail parallel to the lead screw being provided on one side of the support rod, a slider being slidably mounted on the guide rail, a UV light emitter being mounted on the slider, and the slider being connected to the lead nut via a connecting frame.

[0008] Preferably, the UV light emitter includes a mounting rod, the bottom of which is connected to a slider, and multiple UV light beads or UV light strips are provided on the side of the mounting rod near the placement platform.

[0009] Preferably, the end of the support arm near the support sleeve is connected to the connecting plate, and the connecting plate is detachably connected to the side of the support sleeve.

[0010] Preferably, an electric slip ring is coaxially provided at the bottom of the column, the stator of the electric slip ring is mounted on the mounting base, and the rotor of the electric slip ring is connected to the lower end of the support sleeve.

[0011] Preferably, the column has a hollow structure, and the surface of the column at both the upper and lower ends of the support sleeve is provided with a wire through hole.

[0012] Compared to existing technologies, this invention, during 3D printing, gradually raises the height of the workpiece, causing the mounting rod to rise accordingly under the control of the adjusting motor. This ensures that the UV light-emitting beads or strips on the mounting rod surface always surround the placement stage. Furthermore, the mounting rod can rotate around the printed workpiece, allowing the UV light emitted by the beads or strips to evenly illuminate the workpiece, thus curing it. In summary, this UV curing light source rises with the workpiece height and rotates around it, ensuring uniform illumination. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of part of this utility model. Figure 1 .

[0016] Figure 3 This is a schematic diagram of the structure of part of this utility model. Figure 2 .

[0017] Figure 4 This is the front view of the present utility model.

[0018] Figure 5 This is a schematic diagram of the structure of this utility model installed on a 3D printer.

[0019] In the diagram: 1. Mounting base; 2. Drive motor; 3. Slip ring; 4. Adjusting motor; 5. Support arm; 6. Mounting rod; 7. Support rod; 8. Column; 9. Placement platform; 10. Guide rail; 11. Lead screw; 12. Connecting frame; 13. Cable threading port; 14. Support sleeve; 15. Transmission gear; 16. Connecting plate. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Reference Figures 1 to 4 This utility model provides a technical solution: a 3D printing UV curing light source, including a mounting base 1, a vertically mounted column 8 at the top of the mounting base 1, a horizontally mounted placement platform 9 at the top of the column 8, and a support sleeve 14 coaxially and rotatably mounted below the column 8. The support sleeve 14 is driven to rotate by a driving device, such as... Figure 4 As shown, the specific structure of the drive device includes a drive motor 2, which is mounted on the mounting base 1 and its shaft is parallel to the column 8. The drive motor 2 is located on one side of the support rod 7. A transmission gear 15 is coaxially provided on the shaft of the drive motor 2 and on the bottom side of the support sleeve 14. The two transmission gears 15 mesh with each other.

[0022] Therefore, when the drive motor 2 rotates, the drive motor 2 can drive the support sleeve 14 to rotate through the transmission gear 15, such as... Figure 4 As shown, the diameter of the transmission gear 15 located on the support sleeve 14 is larger than the diameter of the transmission gear 15 located on the shaft of the drive motor 2. This can form a structure in which a large gear drives a small gear, making the drive motor 2 more energy-efficient. Under the drive of the drive motor 2, the support sleeve 14 rotates slowly.

[0023] Furthermore, such as Figure 1As shown, at least one support arm 5 is horizontally installed on the side of the support sleeve 14, and a support rod 7 is vertically provided at the end of the support arm 5. The support rod 7 is located around the placement platform 9. In practice, there are at least three support arms 5, because one support arm 5 corresponds to one UV light emitter. Therefore, when there are three support arms 5, they can better surround the outside of the placement platform 9. The support rod 7 has linear drive devices distributed along its length on its side, that is, the length of the linear drive devices is approximately the same as the length of the support rod 7.

[0024] The linear drive device includes a lead screw 11 located on one side of the support rod 7. A nut is threaded onto the lead screw 11. Both ends of the lead screw 11 are rotatably connected to the support rod 7. The bottom of the lead screw 11 is connected to the adjusting motor 4. Figure 2 and Figure 1 As shown, the adjusting motor 4 can be installed below the support arm 5, and the two ends of the lead screw 11 are rotatably set in the bearing seat. The bearing seat can be installed on the side of the support rod 7. The support rod 7 is also provided with a guide rail 10 parallel to the lead screw 11. The guide rail 10 is also part of the linear drive device. A slider (not labeled in the figure) is slidably installed on the guide rail 10. The slider and the lead screw nut are connected through the connecting frame 12. A strip-shaped UV light emitter is installed on the linear drive device. The length of the UV light emitter is approximately the same as that of the support rod 7. Specifically, the UV light emitter is installed on the slider. In actual use, the UV light emitter extends above the placement platform 9 under the drive of the linear drive device, and the UV light emitter rotates around the side of the placement platform 9 as the support sleeve 14 rotates.

[0025] like Figure 4 As shown, the mounting base 1 is installed on the 3D printer. The edge of the mounting base 1 is fastened to the 3D printer with bolts. The placement stage 9 is located in the working area of ​​the 3D printer, allowing the large print head of the 3D printer to print the workpiece directly on the placement stage 9. Alternatively, a container filled with 3D printing resin can be placed on the placement stage 9 and fixed, and then the printer can print the resin in the container into shape.

[0026] The specific process is as follows: whether it is resin printing or direct printing with a 3D printer, as the workpiece gradually takes shape, the height of the workpiece will increase. Therefore, as the length of the workpiece increases, the UV light source will also gradually rise under the drive of the adjusting motor 4. The rising speed of the UV light source and the height increase of the printed workpiece are matched. In this way, the UV light source can rotate around the workpiece while irradiating it, so that the optical fiber emitted by the UV light source can continuously irradiate the workpiece.

[0027] Furthermore, such as Figure 2 and Figure 3As shown, the UV light emitter includes a mounting rod 6, which is parallel to the support rod 7. The bottom of the mounting rod 6 is connected to the slider. Multiple UV light beads or UV light strips are provided on the side of the mounting rod 6 near the placement table 9. The ultraviolet light waves emitted by the light emitter are between 200-420 nanometers, specifically 365nm, 385nm, 395nm and 405nm, etc.

[0028] like Figure 5 As shown, when the 3D printer prints a workpiece, as the workpiece gradually rises, the mounting rod 6 rises accordingly under the drive of the adjusting motor 4, so that the UV light-emitting beads or UV light-emitting strips on the surface of the mounting rod 6 always surround the placement stage 9. Furthermore, the mounting rod 6 can also rotate under the drive of the drive motor 2, allowing the mounting rod 6 to rotate around the printed workpiece, so that the UV light-emitting beads or UV light-emitting strips emit uniform light onto the workpiece.

[0029] Furthermore, in order to enable and control the regulating motor 4 and the UV light emitter, an electric slip ring 3 is coaxially mounted at the bottom of the column 8. The stator of the electric slip ring 3 is mounted on the mounting base 1, while the rotor of the electric slip ring 3 is connected to the lower end of the support sleeve 14; Figure 4 As shown, the column 8 has a hollow structure, and the surface of the column 8 at both the upper and lower ends of the support sleeve 14 is provided with a wire through hole 13.

[0030] Since both the stator and rotor need to be wired during use, the wire harness on the stator is used to connect to the external power supply and control system, while the wire harness on the rotor is passed through the wire pass-through port 13 and connected to the regulating motor 4 and the UV light emitter respectively. The wire pass-through port 13 is provided for easy wire passing.

[0031] Based on the above embodiments, further optimization can be achieved by connecting the support arm 5 to the connecting plate 16 at one end near the support sleeve 14, and the connecting plate 16 and the side of the support sleeve 14 can be detachably connected, specifically by bolts.

[0032] Based on the above embodiments, further optimizations can be made, such as... Figure 1 As shown, because column 8 has a certain height, in actual use, such as Figure 5 As shown, a cavity can be set on the surface of the 3D printer, and the height of the placement stage 9 can be reduced by installing the mounting base 1 inside the cavity.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A 3D printing UV curing light source, comprising a mounting base (1), a column (8) vertically disposed on the top of the mounting base (1), and a placement platform (9) horizontally disposed on the top of the column (8), characterized in that, A support sleeve (14) is coaxially and rotatably mounted below the column (8), and the support sleeve (14) is driven to rotate by a driving device; At least one support arm (5) is horizontally installed on the side of the support sleeve (14), and a support rod (7) is vertically provided at the end of the support arm (5). The support rod (7) is located around the placement platform (9). The support rod (7) has a linear drive device distributed along its length on its side. A strip-shaped UV light emitter is installed on the linear drive device. The UV light emitter extends above the placement platform (9) under the drive of the linear drive device, and the UV light emitter rotates around the placement platform (9) as the support sleeve (14) rotates.

2. The 3D printing UV curing light source as described in claim 1, characterized in that, The drive unit includes a drive motor (2), which is mounted on the mounting base (1) and located on one side of the support rod (7); The drive motor (2) shaft and the bottom side of the support sleeve (14) are both equipped with transmission gears (15) on the same axis, and the two transmission gears (15) mesh with each other.

3. The 3D printing UV curing light source as described in claim 1, characterized in that, The linear drive device includes a lead screw (11) located on one side of the support rod (7), with a nut threaded on the lead screw (11). Both ends of the lead screw (11) are rotatably connected to the support rod (7), and the bottom of the lead screw (11) is connected to the adjusting motor (4). The support rod (7) is also provided with a guide rail (10) parallel to the lead screw (11) on one side. A slider is slidably provided on the guide rail (10), and the UV emitting body is installed on the slider. The slider and the lead screw are connected through the connecting frame (12).

4. The 3D printing UV curing light source as described in claim 3, characterized in that, The UV light emitter includes a mounting rod (6), the bottom of which is connected to a slider. Multiple UV light beads or UV light strips are provided on the side of the mounting rod (6) near the placement platform (9).

5. The 3D printing UV curing light source as described in claim 1, characterized in that, The end of the support arm (5) near the support sleeve (14) is connected to the connecting plate (16), and the connecting plate (16) is detachably connected to the side of the support sleeve (14).

6. The 3D printing UV curing light source as described in claim 4, characterized in that, An electric slip ring (3) is coaxially provided at the bottom of the column (8). The stator of the electric slip ring (3) is mounted on the mounting base (1), while the rotor of the electric slip ring (3) is connected to the lower end of the support sleeve (14).

7. The 3D printing UV curing light source as described in claim 6, characterized in that, The column (8) is a hollow structure, and the surface of the column (8) at both the upper and lower ends of the support sleeve (14) is provided with a wire through hole (13).

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