Full-automatic post-processing equipment for photocuring 3D printing

Abstract

The utility model belongs to the technical field of 3D printers, and provides photocuring 3D printing full-automatic post-processing equipment which comprises an outer frame. The drying and curing bin is fixedly connected to the outer frame, an opening is formed in the bottom of the drying and curing bin, a cleaning bin is fixedly connected in the opening, a part basket is fixedly connected in the drying and curing bin through a lifting mechanism, and the part basket enters and exits the cleaning bin through the opening; the ultrasonic generation assembly is arranged on the outer wall of the cleaning bin; the air blowing assemblies are arranged on the two opposite side walls of the drying and curing bin; the plurality of ultraviolet curing lamps are respectively arranged on two opposite side walls of the drying and curing bin; the vacuum generation assembly is used for manufacturing a vacuum environment in the drying and curing bin; and the solvent flow control assembly is used for filling or extracting a solvent into or from the cleaning bin. The 3D printing post-processing system can improve the automation degree of the 3D printing post-processing process and avoid potential safety hazards.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printers, and in particular relates to a fully automatic post-processing device for light-curing 3D printing. Background Art

[0002] Stereolithography 3D printing is a non-metallic 3D printing technology that uses photosensitive resin materials to solidify layer by layer under ultraviolet light to create three-dimensional solid models. With its high precision and resolution, it has a wide range of applications in prototyping, healthcare, construction, and personalized consumer products. Stereolithography 3D printing technology can be further categorized into SLA (stereolithography), DLP (digital light processing), and LCD (liquid crystal display).

[0003] Parts printed by photocuring 3D printing usually need to undergo post-processing before they can be used, which mainly includes cleaning (using chemical solvents such as alcohol to clean off excess resin material), drying (evaporating residual solvents on the surface of the parts) and curing (making the surface of the parts fully cured). At present, the main problems faced by post-processing of photocuring 3D printing are as follows: (1) Currently, each post-processing link has separate equipment, such as cleaning equipment, drying equipment and curing equipment, but these equipment still operate independently. The transfer of parts between various equipment and the operation of equipment still rely heavily on manual labor, which is inefficient and costly. (2) Chemical solvents such as alcohol or isopropyl alcohol are usually used to clean photocuring resin materials. However, these solvents have low flash points and need to avoid high temperatures and open flames during the post-processing process, which poses a major safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a fully automatic post-processing device for light-curing 3D printing to solve the above problems, thereby improving the degree of automation of the 3D printing post-processing process and avoiding safety hazards.

[0005] To achieve the above objectives, the present invention provides the following solution: a fully automatic post-processing device for light-curing 3D printing, comprising:

[0006] outer frame;

[0007] A drying and curing bin, the drying and curing bin being fixedly connected to the outer frame, an opening being formed at the bottom of the drying and curing bin, a cleaning bin being fixedly connected within the opening, the cleaning bin being in communication with the interior of the drying and curing bin, a parts basket being fixedly connected within the drying and curing bin via a lifting mechanism, the parts basket entering and exiting the cleaning bin through the opening;

[0008] An ultrasonic generating assembly, the ultrasonic generating assembly being arranged on the outer wall of the cleaning chamber;

[0009] Air blast components are arranged on two opposite side walls of the drying and curing chamber;

[0010] A plurality of ultraviolet curing lamps, wherein the plurality of ultraviolet curing lamps are respectively arranged on two opposite side walls of the drying and curing chamber;

[0011] A vacuum generating assembly, the vacuum generating assembly being used to create a vacuum environment in the drying and curing chamber;

[0012] A solvent flow control component is used to fill or extract solvent into or out of the cleaning chamber.

[0013] Preferably, the ultrasonic generating assembly includes a plurality of ultrasonic generators, and the plurality of ultrasonic generators are fixedly connected to the bottom of the cleaning chamber or the outside of the side wall of the cleaning chamber.

[0014] Preferably, the air blowing assembly includes several groups of drying fans, and the several drying fans are respectively fixedly connected to two opposite side walls of the drying and curing chamber, and the several drying fans are correspondingly arranged with the parts basket.

[0015] Preferably, the solvent flow control assembly includes a solvent container fixedly connected to the outer frame, one end of the pipeline is connected to the side wall of the solvent container, the other end of the pipeline is connected to the interior of the cleaning tank through the side wall of the cleaning tank, and the pipeline is connected to a water pump.

[0016] Preferably, the vacuum generating assembly includes a vacuum pump fixedly connected to the outer frame, and the vacuum pump is used to evacuate the air in the drying and curing chamber.

[0017] Preferably, a through hole is provided on the top of the drying and curing chamber, a door cover is hinged in the through hole, and the door cover is adapted to the through hole.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] 1. The fully automatic post-processing equipment for photocuring 3D printing proposed in this utility model can realize unmanned operation of the entire process of cleaning, drying and curing, replacing traditional separate equipment, improving efficiency and reducing labor costs.

[0020] 2. The fully automatic post-processing equipment for photocuring 3D printing proposed in this utility model can realize post-processing operations in a vacuum environment, preventing chemical solvents from contacting oxygen, thereby avoiding safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the parts basket of the post-processing equipment of the present invention in the cleaning chamber;

[0023] Figure 2 This is a schematic diagram of the parts basket of the post-processing equipment of the present invention being located above the cleaning chamber;

[0024] Among them, 1. Drying and curing chamber; 2. Drying fan; 3. UV curing lamp; 4. Cleaning chamber; 5. Ultrasonic generator; 6. Vacuum pump; 7. Water pump; 8. Solvent container; 9. Parts basket; 10. Lifting mechanism; 11. Door cover; 12. Outer frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] Reference Figure 1-Figure 2 The present invention provides a fully automatic post-processing device for light-curing 3D printing, comprising:

[0028] outer frame 12;

[0029] The drying and curing bin 1 is fixedly connected to the outer frame 12. An opening is provided at the bottom of the drying and curing bin 1. A cleaning bin 4 is fixedly connected to the opening. The cleaning bin 4 is communicated with the interior of the drying and curing bin 1. A parts basket 9 is fixedly connected to the drying and curing bin 1 via a lifting mechanism 10. The parts basket 9 enters and exits the cleaning bin 4 through the opening.

[0030] An ultrasonic generating component is provided on the outer wall of the cleaning chamber 4;

[0031] The air blast assembly is arranged on two opposite side walls of the drying and curing chamber 1;

[0032] A plurality of ultraviolet curing lamps 3 are respectively arranged on two opposite side walls of the drying and curing chamber 1;

[0033] A vacuum generating assembly, which is used to create a vacuum environment in the drying and curing chamber 1;

[0034] The solvent flow control component is used to fill or extract solvent into the cleaning chamber 4.

[0035] The main function of the parts basket 9 is to hold 3D printed parts; the main function of the cleaning chamber 4 is to hold the solvent for cleaning 3D parts, and at the same time, when the parts basket 9 enters the cleaning chamber 4, the 3D printed parts can be immersed in the solvent; the main function of the lifting mechanism 10 is to drive the parts basket 9 to descend into the cleaning chamber 4 or to lift it upward from the cleaning chamber 4; the main function of the ultrasonic generating assembly is to stimulate the solvent in the cleaning chamber 4 to vibrate; the main function of the air blowing assembly is to blow air into the parts basket 9 after the parts basket 9 is lifted from the cleaning chamber 4 to dry the parts; the main function of the plurality of UV curing lamps 3 is to cure the 3D printed parts; the main function of the vacuum generating assembly is to evacuate the drying and curing chamber 1 to a vacuum state during the cleaning and curing of the 3D printed parts. Overall, the utility model can realize unmanned operation of the entire process of cleaning, drying and curing, replacing traditional separate equipment, improving efficiency and reducing labor costs. At the same time, it can also realize post-processing operations in a vacuum environment, preventing chemical solvents from contacting oxygen, thereby avoiding safety hazards.

[0036] To further optimize the solution, a controller is also provided, which is electrically connected to the lifting mechanism 10, the ultrasonic generating component, the air blowing component, the plurality of UV curing lamps 3, the vacuum generating component and the solvent flow control component.

[0037] To further optimize the solution, the lifting mechanism 10 can adopt a screw-nut mechanism, a gear rack mechanism or a pulley mechanism to achieve the lifting of the parts basket 9. Since the lifting mechanism 10 is a common structure, its structure, working principle and working process will not be described in detail.

[0038] According to a further optimized solution, the ultrasonic generating assembly includes a plurality of ultrasonic generators 5 , and the plurality of ultrasonic generators 5 are fixedly connected to the bottom of the cleaning chamber 4 or the outside of the side wall of the cleaning chamber 4 .

[0039] When working, the ultrasonic generator 5 can generate ultrasonic high-frequency vibrations and propagate them into the cleaning solvent, providing a cleaning operation for the 3D printed parts.

[0040] According to a further optimized solution, the air blowing assembly includes several groups of drying fans 2 , and the several drying fans 2 are respectively fixedly connected to two opposite side walls of the drying and curing chamber 1 , and the several drying fans 2 are correspondingly arranged with the parts basket 9 .

[0041] like Figure 1 As shown, after the lifting assembly lifts the part basket 9 from the cleaning chamber 4 to the drying and curing chamber 1, the controller controls several groups of drying fans 2 to work, and air flows in and out of the 3D printed parts inside through the holes on the side wall of the part basket 9 to accelerate surface drying.

[0042] To further optimize the solution, several UV curing lamps 3 are fixedly connected to the two opposite side walls of the drying and curing chamber 1, and UV curing lamps 3 are set on the upper and lower sides of the drying fan 2 to fully irradiate the surface of the 3D printed parts in the part basket 9.

[0043] To further optimize the solution, the solvent flow control component includes a solvent container 8 fixedly connected to the outer frame 12, one end of the pipeline is connected to the side wall of the solvent container 8, and the other end of the pipeline is connected to the interior of the cleaning bin 4 through the side wall of the cleaning bin 4, and a water pump 7 is connected to the pipeline.

[0044] like Figure 1 and Figure 2 As shown, the water pump 7 is used to pump the cleaning solvent from the solvent container 8 into the cleaning tank 4 in the working state, and to pump the cleaning solvent from the cleaning tank 4 back into the solvent container 8 in the non-working state.

[0045] To further optimize the solution, the water pump 7 can be a peristaltic pump, a diaphragm pump, a magnetic pump or a gear pump.

[0046] In a further optimized solution, the vacuum generating assembly includes a vacuum pump 6 fixedly connected to the outer frame 12 , and the vacuum pump 6 is used to evacuate the air in the drying and curing chamber 1 .

[0047] As a further optimized solution, a through hole is provided on the top of the drying and curing chamber 1 , a door cover 11 is hinged in the through hole, and the door cover 11 is adapted to the through hole.

[0048] As a further optimization solution, a sealing ring is fixedly connected to the side wall edge of the door cover 11 that contacts the drying and curing bin 1 to ensure that the door cover 11 can be sealed and connected to the drying and curing bin 1 when closed.

[0049] The working process of this embodiment is as follows:

[0050] 1. Open the door cover 11, place the 3D printed parts in the parts basket 9, and then close the door cover 11;

[0051] 2. The controller controls the lifting mechanism 10 to operate and move the parts basket 9 downward into the cleaning chamber 4;

[0052] 3. The controller controls the pump 7 to pump the cleaning solvent from the solvent container 8 into the cleaning chamber 4, and ensures that the liquid level covers the surface of the 3D printed part;

[0053] 4. The controller starts the vacuum pump 6 to evacuate the air in the drying and curing chamber 1;

[0054] 5. The controller controls the ultrasonic generator 5 to start, generating ultrasonic high-frequency vibrations that propagate into the cleaning solvent, providing a cleaning operation for the 3D printed parts and removing residual resin on the surface of the 3D printed parts;

[0055] 6. After cleaning is completed, the controller controls the water pump 7 to reverse and pump the cleaning solvent from the cleaning chamber 4 back into the solvent container 8;

[0056] 7. The controller controls the lifting mechanism 10 to reversely operate, moving the parts basket 9 upward into the drying and curing chamber 1;

[0057] 8. The controller turns off the vacuum pump 6, allowing external air to enter the drying and curing chamber 1;

[0058] 9. The controller starts the drying fan 2, creating air flow in the enclosed space, accelerating the volatilization of the solvent on the surface of the 3D printed parts, and achieving the purpose of drying the parts;

[0059] 10. After drying is completed, the controller starts the vacuum pump 6 again to evacuate the air in the drying and curing chamber 1;

[0060] 11. Control the UV curing lamp 3 to start, generate UV light to irradiate the surface of the 3D printed part, thereby achieving curing treatment;

[0061] 12. After curing is completed, the controller turns off the vacuum pump 6, allowing external air to enter the enclosed space;

[0062] 13. Open the door cover 11, take the 3D printed parts out of the parts basket 9, and then close the door cover 11 to complete the entire post-processing process.

[0063] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0064] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A fully automatic post-processing device for light-curing 3D printing, characterized in that: include: outer frame (12); A drying and curing bin (1), the drying and curing bin (1) being fixedly connected to the outer frame (12), an opening being provided at the bottom of the drying and curing bin (1), a cleaning bin (4) being fixedly connected in the opening, the cleaning bin (4) being communicated with the interior of the drying and curing bin (1), a parts basket (9) being fixedly connected in the drying and curing bin (1) via a lifting mechanism (10), the parts basket (9) entering and exiting the cleaning bin (4) through the opening; an ultrasonic generating assembly, the ultrasonic generating assembly being arranged on the outer wall of the cleaning chamber (4); Air blast components are arranged on two opposite side walls of the drying and curing chamber (1); A plurality of ultraviolet curing lamps (3), wherein the plurality of ultraviolet curing lamps (3) are respectively arranged on two opposite side walls of the drying and curing chamber (1); A vacuum generating assembly, the vacuum generating assembly being used to create a vacuum environment in the drying and curing chamber (1); A solvent flow control component is used to inject or extract solvent into or out of the cleaning chamber (4).

2. The fully automatic post-processing equipment for light-curing 3D printing according to claim 1, characterized in that: The ultrasonic generating assembly comprises a plurality of ultrasonic generators (5), and the plurality of ultrasonic generators (5) are fixedly connected to the bottom of the cleaning chamber (4) or the outside of the side wall of the cleaning chamber (4).

3. The fully automatic post-processing equipment for stereolithography 3D printing according to claim 1, characterized in that: The air blowing assembly comprises a plurality of drying fans (2), wherein the plurality of drying fans (2) are respectively fixedly connected to two opposite side walls of the drying and curing chamber (1), and the plurality of drying fans (2) are arranged corresponding to the parts basket (9).

4. The fully automatic post-processing equipment for stereolithography 3D printing according to claim 1, characterized in that: The solvent flow control assembly includes a solvent container (8) fixedly connected to the outer frame (12), one end of a pipeline is connected to the side wall of the solvent container (8), the other end of the pipeline is connected to the interior of the cleaning chamber (4) through the side wall of the cleaning chamber (4), and a water pump (7) is connected to the pipeline.

5. The fully automatic post-processing equipment for stereolithography 3D printing according to claim 1, characterized in that: The vacuum generating assembly comprises a vacuum pump (6) fixedly connected to the outer frame (12), and the vacuum pump (6) is used to evacuate the air in the drying and curing chamber (1).

6. The fully automatic post-processing equipment for stereolithography 3D printing according to claim 1, characterized in that: A through hole is provided on the top of the drying and curing chamber (1), a door cover (11) is hinged in the through hole, and the door cover (11) is adapted to the through hole.

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