Lifting cover of 3D printing model post-processor

Abstract

The utility model discloses a lifting cover of a 3D printing model post-processor. The lifting cover comprises a first assembly, a second assembly, a plurality of isolation pieces, at least one fan and at least one ultraviolet light-emitting module. The isolation piece is arranged on the inner side wall of the second assembly and can serve as a jacking part of the lifting device, and an avoiding position for rotation of the net basket can be formed. A first area and a second area are formed in the first assembly, the first area is used for containing a basket, the second area is used for air convection, and a fan and an ultraviolet light-emitting module are arranged. The device has the advantages that the device can be ejected out of the liquid level of cleaning liquid by the lifting device, meanwhile, the problem of interference with rotation of the mesh basket driven by the rotating device when the device is ejected up is solved, the device can be matched with a model to conduct air drying and secondary curing in the rotating state, and convection of air blown out by the fan is good.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing model post-processing. Background Art

[0002] In 3D printing technology, the 3D printing technology that uses photosensitive resin as raw material generally requires post-processing for the printed models. There are generally three steps in post-processing, namely cleaning and desiccant curing. Cleaning methods include ultrasonic cleaning, impeller stirring water cleaning, and immersion in solvents. Drying methods include air drying and natural drying. Curing is a secondary light curing method using ultraviolet rays.

[0003] Chinese patent application number CN2021206870865 is titled as a post-3D printing processing device. The technology is to design the fan on the top cover and the light strip on the shell, and then the cleaning device is an impeller cleaning device, that is, the wind blown by the fan cannot be well aligned with the 3D printed model, because the light strip is designed on the inner wall of the shell in the form of a transparent plastic part, so the effect of its ultraviolet radiation is also limited. The key point is that the 3D printed model is placed inside the shell. In the absence of rotation, its ultraviolet radiation and fan blowing cannot achieve good results. The top cover can only blow wind to the 3D printed model when it is closed.

[0004] Chinese patent application number CN2020230814989 is titled as a cleaning machine for light-curing 3D printed models and a light-curing 3D printer. This technology designs the spray arm below the area where the 3D printed model is printed, which cannot clean the upper surface of the model well. Its advantage is that the 3D printed model can be secondary light-cured and air-dried during the rotation process. Its disadvantage is that the fan is not aimed at the 3D printed model, and because the interior is relatively closed, the wind blown out by the fan cannot correspond well, so the air-drying effect of the 3D printed model needs to be improved, unless the fan power is very large, then the cost is increased.

[0005] Chinese patent application number CN2022212591981, a 3D printing model post-processing device, this technology is to place the cleaned model on a turntable inside the curing cylinder, the turntable is driven by a magnetic stirring device, the model is blown dry by the fan during the rotation, and secondary curing is performed under ultraviolet radiation. Its disadvantage is that in the cleaning part, the model needs to be placed inside the cleaning cylinder, and after cleaning, the model needs to be taken out and the cleaning cylinder needs to be removed, and the ultrasonic electrical connection needs to be maintained during the cleaning process of the cleaning cylinder. If the cleaning cylinder is not fixed well, the power of the ultrasonic wave will be absorbed by the vibration, and the cleaning effect on the model will be weakened. Moreover, this technology is in a relatively sealed environment, the wind blown out by the fan is not good, and its air-drying effect is limited. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a lifting cover for a 3D printing model post-processing machine, which can be pushed out of the liquid surface of the cleaning liquid by a lifting device, and at the same time will not interfere with the rotation of the mesh basket driven by the rotating device when being lifted up. The model can be air-dried and secondary cured in a rotating state, and the convection of the wind blown out by the fan is better.

[0007] The technical solution adopted by the utility model is:

[0008] A lifting cover of a 3D printing model post-processing machine, comprising:

[0009] The first component extends from the lower end to the upper end, and has a cavity inside, and an air inlet hole on the side wall; the cavity is divided into two areas, and the cavity extends from the lower end to the upper end, which are a first area for curing and drying the 3D printed model and a second area for air outflow, respectively. The first area is located in the center of the cavity, and the second area surrounds the first area in an annular manner;

[0010] A second component is fixedly connected to the upper end of the first component and closes the upper end of the cavity provided in the first component;

[0011] A plurality of isolators are arranged in an array on one end face of the second component and are arranged inside the cavity. The upper end of each isolator is connected to the second component, and the lower end of each isolator extends from the upper end of the isolator to the lower end of the cavity. An escape position is arranged in the area between the lower ends of all isolators and the lower end of the second component to allow the upper end of the basket provided by the cleaning machine to rotate. All isolators are arranged around the outer edge of the escape position. The lower end of the isolator is a force-bearing end driven by the driving end of the lifting device provided by the cleaning machine.

[0012] At least one fan is disposed in the second area inside the cavity and fixed to the air inlet hole of the inner wall of the first component, and each fan faces the first area;

[0013] At least one ultraviolet light emitting module is arranged in the second area inside the cavity and fixed on the inner wall of the first component. Each ultraviolet light emitting module faces the first area.

[0014] The lower ends of all the isolation parts are lifted up by the lifting device of the cleaning machine at the same time, driving the entire lifting cover to rise. At this time, the ultraviolet light-emitting module and the fan previously blocked by the base can be exposed to the first area. Because a clearance is formed between all the isolation parts, when the rotating device of the cleaning machine drives the basket to rotate, the upper end of the basket can rotate in the clearance without interfering with the isolation parts. Therefore, the rotation of the basket drives the 3D printed model to rotate. During the rotation process, the 3D printed model is irradiated by ultraviolet rays and the wind blown by the fan to achieve an air-drying effect. Because the second area is provided inside the first component and the second area is connected to the outside, the air convection effect is better, and the air-drying effect is better.

[0015] Therefore, ultraviolet rays are not friendly to human eyes, so the lifting cover needs to be made to reduce the damage of ultraviolet rays to human eyes. Therefore, the following two solutions are proposed:

[0016] The first solution is: the first component is a first component made of a light-shielding material, and / or the second component is a second component made of a light-shielding material, and the materials may be ABS, PP, and the like.

[0017] The second solution is: the first component is made of a transparent material that can filter ultraviolet rays, and / or the second component is made of a transparent material that can filter ultraviolet rays. The material can be a transparent and dark red plastic material, which can observe the internal situation.

[0018] The first component inner wall is provided with a first slot and a second slot, the first slot includes a first part and a second part, the air inlet is provided between the first part and the second part, the first slot extends from the lower end of the first component to the upper end of the first component; the outside of the first component is connected with the first area through the air inlet; the second slot includes a third part and a fourth part; the second slot extends from the lower end of the first component to the upper end of the first component; the extension direction of the first slot is parallel to the extension direction of the second slot. The first component, the first slot and the second slot are extruded as a whole, saving mold opening costs and facilitating the installation of the ultraviolet light emitting module and the fan.

[0019] The side wall of the first component is provided with two air inlets, namely the first air inlet and the second air inlet. The second air inlet is provided above the first air inlet. The first air inlet is close to the lower end of the first component and away from the upper end of the first component, and the second air inlet is close to the upper end of the first component and away from the lower end of the first component. Two fans are provided on the inner wall of the first component, and each fan corresponds to an air inlet. Because different 3D printed models have different heights, and in order to increase power, two fans are designed on the inner wall of the first component, and the two fans can be freely selected to be independently turned on / off in the controller of the cleaning machine.

[0020] A shading piece is fixed at each air inlet hole, and an air inlet gap is provided between each shading piece and the outer wall of the first component. Each shading piece includes a shading plate and a plurality of snap structures distributed in an array on one end face of the shading plate, and the snap structures are fixed corresponding to the air inlet hole.

[0021] Each shading piece is made of a material that allows blocking the spread of ultraviolet rays. Because the fan can transmit ultraviolet light, a portion of the ultraviolet light is shielded by the shading piece, while the air inlet of the fan is not blocked.

[0022] Each shading member is provided with four buckle structures, and each fan is supported inside the first slot by the buckle structure. The buckle structure is more convenient to install, and the buckle structure can also support the fan. The fan and the ultraviolet light module can be fixed to the inner wall of the first component by screws or glue.

[0023] The inner wall of the first component is provided with four connection parts, each of which extends from the lower end of the first component to the upper end of the first component, and each connection part is provided with a through hole extending from the lower end of the first component to the upper end of the first component; the second component is provided with four screw holes, each screw hole corresponds to a through hole, the first component and the second component are fixedly connected by screws, and each screw passes through a screw hole and a corresponding through hole. The four connection parts can also be produced by extrusion technology.

[0024] The inner side wall of the first component and / or the inner side wall of the second component is provided with a reflective material layer, mainly to increase the effect of secondary light curing and make better use of ultraviolet rays.

[0025] The characteristics of the technical solution of this application are: 1. It is allowed to be lifted by the lifting device; 2. It is allowed not to interfere with the rotating net basket when being lifted; 3. The ultraviolet light-emitting module and the fan are aligned with the 3D printed model on the net basket only after being lifted up. When not lifted up, the ultraviolet light-emitting module and the fan are blocked by the base of the cleaning machine and cannot be directly facing the net basket; 4. The 3D printed model is air-dried and cured in a rotating state; 5. During the air-drying process, the air convection effect is good; 6. The fan light leakage has the effect of reducing the exposure of ultraviolet light. The lifting direction is perpendicular to the ultraviolet irradiation direction, and the lifting direction is perpendicular to the fan blowing direction. The ultraviolet light-emitting module is arranged next to the fan. When the fan is working and the air outside the first component is blown into the inside of the first component, because negative pressure is generated in the area between the ultraviolet light-emitting module and the fan, the heat emitted by the ultraviolet light-emitting module can be taken away, thereby reducing the temperature of the ultraviolet light-emitting module, slowing down the light decay of the ultraviolet light-emitting module, and also slowing down the heating of the first component by the heat generated by the ultraviolet light-emitting module. Because if the temperature is too high, it is easy to cause thermal deformation.

[0026] The beneficial effects of the utility model are: the liquid level of the cleaning liquid can be pushed out by the lifting device, and when being pushed up, it will not interfere with the rotation of the mesh basket driven by the rotating device. The model can be air-dried and re-cured in a rotating state, and the convection of the wind blown out by the fan is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structural principle of the utility model Figure 1 , mainly indicates the top;

[0028] Figure 2 This is a schematic diagram of the structural principle of the utility model Figure 2 , mainly illustrating the internal principles;

[0029] Figure 3 This is a schematic diagram of the structural principle of the utility model Figure 3 , the principle of looking up;

[0030] Figure 4 This is a schematic diagram of the structural principle of the utility model Figure 4 , illustrating the internal principle from another angle;

[0031] Figure 5 It is a schematic diagram of the principle of hiding the shading member in the utility model;

[0032] Figure 6 It is a schematic diagram of the principle of the utility model in which the first component is hidden;

[0033] Figure 7The utility model is a schematic diagram of the principle of looking up and hiding the fan and ultraviolet light emitting module;

[0034] Figure 8 It is a partial schematic diagram of the principle of the utility model applied in the cleaning machine. DETAILED DESCRIPTION

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the lifting cover of the 3D printing model post-processing machine of the utility model comprises:

[0036] A first component (1) extends from the lower end to the upper end, has a cavity inside, and has an air inlet (15) on its side wall; the cavity is divided into two areas, the cavity extends from the lower end to the upper end, and is respectively a first area (101) for curing and drying the 3D printed model and a second area (102) for air outflow; the first area (101) is located at the center of the cavity, and the second area (102) surrounds the first area (101) in an annular manner;

[0037] A second component (2) fixedly connected to the upper end of the first component (1) and closing the upper end of the cavity provided in the first component (1);

[0038] A plurality of isolating members (6) are arranged in an array on one end surface of the second component (2), and are arranged inside the cavity. The upper end of each isolating member (6) is connected to the second component (2), and the lower end of each isolating member (6) extends from the upper end of the isolating member (6) toward the lower end of the cavity. An escape position (103) is provided in the area between the lower ends of all the isolating members (6) and the lower end of the second component (2) to allow the upper end of the net basket (7) provided in the cleaning machine to rotate. All the isolating members (6) are arranged around the outer edge of the escape position (103). The lower end of the isolating member (6) is a force-bearing end driven by the driving end of the lifting device (8) provided in the cleaning machine.

[0039] At least one fan (4), which is disposed in the second area (102) inside the cavity and is fixed to the air inlet (15) on the inner wall of the first component (1), and each fan (4) faces the first area (101);

[0040] At least one ultraviolet light emitting module (5) is disposed in the second area (102) inside the cavity and is fixed to the inner wall of the first component (1). Each ultraviolet light emitting module (5) faces the first area (101).

[0041] The lower ends of all the isolation members (6) are simultaneously lifted up by the lifting device (8) provided by the cleaning machine, driving the entire lifting cover to rise, and at this time, the ultraviolet light emitting module (5) and the fan (4) previously blocked by the base can be exposed to face the first area (101). Because a clearance position (103) is formed between all the isolation members (6), when the rotating device provided by the cleaning machine drives the basket (7) to rotate, the upper end of the basket (7) can rotate at the clearance position (103) without interfering with the isolation members (6). Therefore, the rotation of the basket (7) drives the 3D printed model to rotate, and the 3D printed model is irradiated by ultraviolet rays and the wind blown out by the fan (4) during the rotation process to achieve an air-drying effect. Because the second area (102) is provided inside the first component (1), and the second area (102) is connected to the outside, the air convection effect is better, and the air-drying effect is better.

[0042] Therefore, ultraviolet rays are not friendly to human eyes, so the lifting cover needs to be made to reduce the damage of ultraviolet rays to human eyes. Therefore, the following two solutions are proposed:

[0043] The first solution is: the first component (1) is a first component (1) made of a light-shielding material, and / or the second component (2) is a second component (2) made of a light-shielding material, and the material may be ABS, PP or the like.

[0044] The second solution is: the first component (1) is made of a transparent material that can filter ultraviolet rays, and / or the second component (2) is made of a transparent material that can filter ultraviolet rays. The material can be a transparent and dark red plastic material, which can observe the internal situation.

[0045] The first component (1) has an inner wall provided with a first slot (11) and a second slot (12). The first slot (11) includes a first portion and a second portion. The air inlet (15) is provided between the first portion and the second portion. The first slot (11) extends from the lower end of the first component (1) toward the upper end of the first component (1). The outside of the first component (1) is connected to the first area (101) through the air inlet (15). The second slot (12) includes a third portion and a fourth portion. The second slot (12) extends from the lower end of the first component (1) toward the upper end of the first component (1). The extension direction of the first slot (11) is parallel to the extension direction of the second slot (12). The first component (1), the first slot (11) and the second slot (12) are integrally extruded to save mold opening costs and facilitate installation of the ultraviolet light emitting module (5) and the fan (4).

[0046] The side wall of the first component (1) is provided with two air inlet holes (15), namely a first air inlet hole and a second air inlet hole, the second air inlet hole being arranged above the first air inlet hole, the first air inlet hole being close to the lower end of the first component (1) and away from the upper end of the first component (1), and the second air inlet hole being close to the upper end of the first component (1) and away from the lower end of the first component (1); and two fans (4) are arranged on the inner side wall of the first component (1), each fan (4) corresponding to one air inlet hole (15). Because different 3D printed models have different heights, and in order to increase power, two fans (4) are designed on the inner side wall of the first component (1), and the two fans (4) can be freely selected to be independently turned on / off in the controller of the cleaning machine.

[0047] A shading member (3) is clamped at each air inlet hole (15), an air inlet gap (31) is provided between each shading member (3) and the outer wall of the first component (1), each shading member (3) comprises a shading plate and a plurality of snap-fit ​​structures (32) arranged in an array and distributed on one end surface of the shading plate, and the snap-fit ​​structures (32) are clamped corresponding to the air inlet hole (15).

[0048] Each shading member (3) is made of a material that allows blocking the propagation of ultraviolet rays. Because the fan (4) can transmit ultraviolet rays, a portion of the ultraviolet rays is shielded by the shading member (3) while the air inlet (15) of the fan (4) is not blocked.

[0049] Each shading member (3) is provided with four buckle structures (32), and each fan (4) is supported inside the first slot (11) by means of the buckle structures (32). The buckle structures (32) are more convenient to install, and the buckle structures (32) can also support the fan (4). The fan (4) and the ultraviolet light emitting module (5) can be fixed to the inner wall of the first component (1) by means of screws or glue.

[0050] The first component (1) is provided with four connection parts (13) on the inner side wall, each connection part (13) extends from the lower end of the first component (1) to the upper end of the first component (1), and each connection part (13) is provided with a through hole (14) extending from the lower end of the first component (1) to the upper end of the first component (1); the second component (2) is provided with four screw holes, each screw hole corresponds to a through hole (14), the first component (1) and the second component (2) are fixedly connected by screws, and each screw passes through a screw hole and a corresponding through hole (14). The four connection parts (13) can also be produced by extrusion technology.

[0051] The inner side wall of the first component (1) and / or the inner side wall of the second component (2) is provided with a reflective material layer, mainly to enhance the effect of secondary light curing and make better use of ultraviolet rays.

[0052] The technical solution of the present application is characterized in that: 1. it is allowed to be lifted by the lifting device (8); 2. it is allowed not to interfere with the rotating net basket (7) when lifted; 3. the ultraviolet light emitting module (5) and the fan (4) are aligned with the 3D printed model on the net basket (7) only after being lifted, and when not lifted, the ultraviolet light emitting module (5) and the fan (4) are blocked by the base of the cleaning machine and cannot be directly aligned with the net basket (7); 4. the 3D printed model is air-dried and cured in a rotating state; 5. during the air-drying process, the air convection effect is good; 6. the light leakage of the fan (4) reduces the exposure of ultraviolet light. The lifting direction is perpendicular to the ultraviolet irradiation direction, and the lifting direction is perpendicular to the blowing direction of the fan (4). The ultraviolet light emitting module (5) is arranged beside the fan (4). When the fan (4) is working and blows the air outside the first component (1) into the first component (1), a negative pressure is generated in the area between the ultraviolet light emitting module (5) and the fan (4). Therefore, the heat emitted by the ultraviolet light emitting module (5) can be taken away, thereby reducing the temperature of the ultraviolet light emitting module (5), slowing down the light decay of the ultraviolet light emitting module (5), and also slowing down the heating of the first component (1) by the heat generated by the ultraviolet light emitting module (5). If the temperature is too high, it is easy to cause thermal deformation.

[0053] The beneficial effects of the utility model are as follows: the liquid surface of the cleaning liquid can be pushed out by the lifting device (8), and when being lifted up, there will be no interference with the rotation of the mesh basket (7) driven by the rotating device, and the model can be air-dried and secondary cured in a rotating state, and the convection of the wind blown out by the fan (4) is relatively good.

Claims

1. The lifting cover of the 3D printing model post-processing machine is characterized by: include: A first component (1) extends from the lower end to the upper end, has a cavity inside, and has an air inlet (15) on its side wall; the cavity is divided into two areas, the cavity extends from the lower end to the upper end, and is respectively a first area (101) for curing and drying the 3D printed model and a second area (102) for air outflow; the first area (101) is located at the center of the cavity, and the second area (102) surrounds the first area (101) in an annular manner; A second component (2) fixedly connected to the upper end of the first component (1) and closing the upper end of the cavity provided in the first component (1); A plurality of isolating members (6) are arranged in an array on one end surface of the second component (2), and are arranged inside the cavity. The upper end of each isolating member (6) is connected to the second component (2), and the lower end of each isolating member (6) extends from the upper end of the isolating member (6) toward the lower end of the cavity. An escape position (103) is provided in the area between the lower ends of all the isolating members (6) and the lower end of the second component (2) to allow the upper end of the net basket (7) provided in the cleaning machine to rotate. All the isolating members (6) are arranged around the outer edge of the escape position (103). The lower end of the isolating member (6) is a force-bearing end driven by the driving end of the lifting device (8) provided in the cleaning machine. At least one fan (4), which is disposed in the second area (102) inside the cavity and is fixed to the air inlet (15) on the inner wall of the first component (1), and each fan (4) faces the first area (101); At least one ultraviolet light emitting module (5) is disposed in the second area (102) inside the cavity and is fixed to the inner wall of the first component (1). Each ultraviolet light emitting module (5) faces the first area (101).

2. The lifting cover of the 3D printing model post-processing machine according to claim 1, characterized in that: The first component (1) is a first component (1) made of a light-shielding material, and / or the second component (2) is a second component (2) made of a light-shielding material.

3. The lifting cover of the 3D printing model post-processing machine according to claim 1 is characterized in that: The first component (1) is a first component (1) made of a transparent material capable of filtering ultraviolet rays, and / or the second component (2) is a second component (2) made of a transparent material capable of filtering ultraviolet rays.

4. The lifting cover of the 3D printing model post-processing machine according to claim 1, characterized in that: The first component (1) has an inner side wall provided with a first slot (11) and a second slot (12), the first slot (11) comprising a first portion and a second portion, an air inlet hole (15) being provided between the first portion and the second portion, the first slot (11) extending from the lower end of the first component (1) towards the upper end of the first component (1); the outside of the first component (1) is connected to the first area (101) through the air inlet hole (15); the second slot (12) comprising a third portion and a fourth portion; the second slot (12) extending from the lower end of the first component (1) towards the upper end of the first component (1); the extension direction of the first slot (11) is parallel to the extension direction of the second slot (12).

5. The lifting cover of the 3D printing model post-processing machine according to claim 4, characterized in that: The side wall of the first component (1) is provided with two air inlet holes (15), namely a first air inlet hole and a second air inlet hole, the second air inlet hole is arranged above the first air inlet hole, the first air inlet hole is close to the lower end of the first component (1) and away from the upper end of the first component (1), and the second air inlet hole is close to the upper end of the first component (1) and away from the lower end of the first component (1); and two fans (4) are arranged on the inner side wall of the first component (1), each fan (4) corresponding to one air inlet hole (15).

6. The lifting cover of the 3D printing model post-processing machine according to claim 5, characterized in that: A shading member (3) is clamped at each air inlet hole (15), an air inlet gap (31) is provided between each shading member (3) and the outer wall of the first component (1), each shading member (3) comprises a shading plate and a plurality of snap-fit ​​structures (32) arranged in an array and distributed on one end surface of the shading plate, and the snap-fit ​​structures (32) are clamped corresponding to the air inlet hole (15).

7. The lifting cover of the 3D printing model post-processing machine according to claim 6, characterized in that: Each shading member (3) is a shading member (3) made of a material that allows blocking the propagation of ultraviolet rays.

8. The lifting cover of the 3D printing model post-processing machine according to claim 7, characterized in that: Each shading member (3) is provided with four buckle structures (32), and each fan (4) is pressed into the first buckle slot (11) through the buckle structure (32).

9. The lifting cover of the 3D printing model post-processing machine according to claim 8, characterized in that: The first component (1) is provided with four connection parts (13) on the inner wall, each connection part (13) extends from the lower end of the first component (1) toward the upper end of the first component (1), and each connection part (13) is provided with a through hole (14) extending from the lower end of the first component (1) toward the upper end of the first component (1); the second component (2) is provided with four screw holes, each screw hole corresponds to a through hole (14), and the first component (1) and the second component (2) are fixedly connected by screws, and each screw passes through a screw hole and a corresponding through hole (14).

10. The lifting cover of the 3D printing model post-processing machine according to any one of claims 1 to 9, characterized in that: The inner side wall of the first component (1) and / or the inner side wall of the second component (2) is provided with a reflective material layer.

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