Curing box

Abstract

The embodiment of the utility model provides a curing box, and relates to the technical field of 3D printing equipment. The curing box comprises a curing box body and a control module. The curing box body is provided with a curing chamber. The control module comprises a ventilation assembly and a heating assembly. The ventilation assembly is arranged on the curing box body and used for supplying gas into the curing chamber. The heating assembly is used for controlling the temperature of the curing chamber. The device can improve the object curing efficiency and the object surface curing quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing equipment technical field, specifically, relate to a solidification box. BACKGROUND

[0002] With the rapid development of 3D printing technology, the post-curing processing of 3D printed objects becomes particularly important. The solidification box emerges as the times require in this background, and it can provide rapid and uniform photocuring processing for the 3D printed objects.

[0003] However, in the prior art, the solidification box has the problem of insufficient curing and sticking caused by the oxidation of the object surface, and the curing efficiency of the solidification box is low. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a solidification box, which can isolate oxygen from contacting the object surface, improve the surface curing quality and improve the curing efficiency of the curing chamber.

[0005] The embodiment of the utility model can be realized as follows:

[0006] The utility model provides a solidification box, which comprises:

[0007] A solidification box body is provided with a curing chamber inside;

[0008] A control module comprises a ventilation assembly arranged on the solidification box body, and the ventilation assembly is used to supply gas into the curing chamber.

[0009] The control module further comprises a heating assembly for controlling the temperature of the curing chamber.

[0010] In an optional embodiment, the heating assembly comprises a housing, a fan and a heater.

[0011] The housing is fixed to the solidification box body, and a flow channel is arranged in the housing and communicates with the curing chamber.

[0012] The fan is arranged in the flow channel to make the gas flow between the curing chamber and the flow channel.

[0013] The heater is arranged in the flow channel to heat the gas in the flow channel.

[0014] In an optional embodiment, the fan is a centrifugal impeller fan.

[0015] In an optional embodiment, a gas guide hole is arranged on the top of the curing box body, and the curing chamber and the flow channel are communicated through the gas guide hole.

[0016] In an optional embodiment, the fan is arranged opposite to the heater.

[0017] In an optional embodiment, an arc-shaped air guide plate is arranged in the flow channel, and the arc-shaped air guide plate is arranged at one end of the air inlet of the fan and / or at one end of the air outlet of the fan.

[0018] In an optional embodiment, a first temperature sensor is arranged in the curing chamber, and / or a second temperature sensor is arranged on the heater.

[0019] In an optional embodiment, the ventilation assembly is used to supply nitrogen into the curing chamber.

[0020] In an optional embodiment, a light source is arranged on the inner wall of the curing box body, and the light source is an array ultraviolet light source.

[0021] In an optional embodiment, the curing box body is provided with a rotating platform in the curing chamber.

[0022] The curing box has the following advantages:

[0023] The curing box comprises a curing box body and a control module. The curing box body is provided with a curing chamber. The control module comprises a ventilation assembly and a heating assembly. The ventilation assembly is arranged on the curing box body and is used to supply gas into the curing chamber. The heating assembly is used to heat the gas. By supplying gas into the curing chamber, the oxygen concentration in the curing chamber is reduced, so that the contact between oxygen and the surface of the object is prevented, and the surface curing quality of the object is improved. By arranging the heating assembly, the temperature of the curing chamber is increased, so that the curing efficiency of the object in the curing chamber is improved, and the strength of the 3D printed object is improved. The curing box can prevent the contact between oxygen and the surface of the object, improve the surface curing quality, and improve the curing efficiency of the curing chamber. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Figure 1A structure schematic diagram of the curing box from a first perspective is provided for the embodiment;

[0026] Figure 2 A structure schematic diagram of the curing box from a second perspective is provided for the embodiment;

[0027] Figure 3 A structure schematic diagram of the curing box from a third perspective is provided for the embodiment.

[0028] Icon: 100-curing box; 10-curing box main body; 11-curing chamber; 111-rotary platform; 112-light source; 12-first temperature sensor; 13-first air guide hole; 14-second air guide hole; 15-air inlet; 16-air outlet; 17-opening; 20-shield shell; 21-flow channel; 22-second temperature sensor; 23-arc-shaped air deflector; 30-fan; 40-heater. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the present application when it is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0033] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0035] The following describes in detail the overall structure, working principle, and technical effects of the curing box 100 provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0036] Please refer to Figure 1 This invention provides a curing chamber 100 for use in 3D printing technology. In this embodiment, the curing chamber 100 is used to cure the 3D printed object.

[0037] The curing chamber 100 includes a curing chamber body 10 and a control module. A curing chamber 11 is disposed within the curing chamber body 10. The control module includes a ventilation component and a heating component. The ventilation component, disposed in the curing chamber body 10, is used to supply gas to the curing chamber 11. Specifically, the gas is an anti-oxidation gas. The heating component is used to control the temperature of the curing chamber 11. It is understood that in this embodiment, curing an object requires placing the object inside the curing chamber 11. By supplying an anti-oxidation gas to the curing chamber 11, the oxygen concentration in the curing chamber 11 is reduced, thereby isolating oxygen from contact with the object surface and improving the curing quality of the object surface. The temperature of the curing chamber 11 is controlled by the heating component. It is understood that the curing efficiency of the curing chamber 11 is high under certain temperature conditions. This invention can provide a curing environment at a certain temperature, thereby improving the curing efficiency of the curing chamber 11. Heating the curing chamber 11 can also improve the curing strength of the printed object. This invention can isolate oxygen from contact with the object surface, improve the surface curing quality, and improve the heating efficiency of the curing chamber 11.

[0038] Specifically, in this embodiment, the venting assembly is used to supply nitrogen gas to the curing chamber 11. That is, the aforementioned anti-oxidation gas is nitrogen gas. The venting assembly includes an inlet 15 and an outlet 16. The inlet 15 and the outlet 16 are located on the curing chamber body 10 and communicate with the curing chamber 11. The inlet 15 is used to introduce nitrogen gas, and the outlet 16 is used to discharge nitrogen gas. It can be understood that filling the curing chamber 11 with nitrogen gas can remove oxygen from the curing chamber 11, preventing the object from undergoing an oxidation reaction at high temperatures, forming an oxide layer, and affecting the surface quality and precision of the object.

[0039] Further, the heating assembly comprises a cover 20, a fan 30 and a heater 40. The cover 20 is fixed to the curing box body 10. A flow channel 21 is arranged in the cover 20. The flow channel 21 is communicated with the curing chamber 11. The fan 30 is arranged in the flow channel 21 to enable the gas to communicate between the curing chamber 11 and the flow channel 21. The heater 40 is arranged in the flow channel 21 to heat the gas in the flow channel 21. When the fan 30 is started, a negative pressure can be formed in the flow channel 21 at the position of the fan 30, so that the gas in the curing chamber 11 is sucked into the flow channel 21, and the heated gas is flowed back to the curing chamber 11 under the pressure of the fan 30 after being heated by the heater 40. The gas in the curing chamber 11 is sequentially flowed into the flow channel 21 to be heated, so that the circulation heating of the gas is realized, and the temperature of the gas in the curing chamber 11 is gradually increased. After the gas in the curing chamber 11 reaches a certain temperature, the curing efficiency of the curing chamber 11 is improved, and the heating of the curing chamber 11 can also improve the strength of the cured printing object.

[0040] Specifically, the cover 20, the fan 30 and the heater 40 in the embodiment are all arranged at the top of the curing chamber 11, so that the convection of the cold and hot air is facilitated. In the embodiment, the rotating shaft of the fan 30 is horizontally arranged, and further a negative pressure is formed in the flow channel 21 at the position of the fan 30, so that the gas is facilitated to flow in the flow channel 21.

[0041] It can be understood that, in the embodiment, the curing chamber 11 is used to put the object after 3D printing and to cure the object, which generally refers to promoting the cross-linking reaction of the molecules of the object by heating, lighting and the like to form a hard structure. In the embodiment, the object material used for 3D printing is generally resin. The purpose of the curing box 100 in the embodiment is to provide a certain temperature environment for the curing of the object, so as to improve the curing efficiency of the object and the strength of the cured object.

[0042] Specifically, in the embodiment, the fan 30 is a centrifugal impeller fan 30. The blades on the impeller of the fan 30 make the gas do high-speed circular motion, form a centrifugal force to throw the gas to the edge of the impeller to form a low-pressure area, so as to suck the external gas, so that the gas in the curing chamber 11 moves towards the flow channel 21, and the gas is guided and accelerated, the pressure and speed of the gas are increased, and the heated gas is further pressed back into the curing chamber 11.

[0043] In the embodiment, the heater 40 is a PTC heater 40 which is composed of a PTC ceramic heating element and an aluminum pipe. Of course, in other embodiments, the heater 40 can also be of other types according to needs, for example, an electric heating pipe heater 40 and the like. As long as the heater 40 can heat the gas in the flow channel 21, the type of the heater 40 is not limited in the utility model.

[0044] Please refer to Figure 2 and Figure 3In the embodiment, the top of the curing box body 10 is provided with a gas guide hole. The curing chamber 11 and the flow channel 21 are communicated through the gas guide hole. It can be understood that the gas in the curing chamber 11 flows into the flow channel 21 through the gas guide hole under the driving of the fan 30, is accelerated by the fan 30 and heated by the heater 40, and then flows back into the curing chamber 11 from the gas guide hole. In turn, the temperature of the gas in the curing chamber 11 gradually increases. After finally reaching the preset temperature, the curing efficiency of the curing chamber 11 is improved.

[0045] Specifically, the gas guide hole includes a first gas guide hole 13 and a second gas guide hole 14. The first gas guide hole 13 and the second gas guide hole 14 are located on the two sides of the fan 30. In the embodiment, the first gas guide hole 13 and the second gas guide hole 14 are arranged along the axial direction of the fan 30, and the first gas guide hole 13 and the second gas guide hole 14 are located on the two sides of the axial direction of the fan 30. Among them, the first gas guide hole 13 is located on one side of the air inlet of the fan 30. The second gas guide hole 14 is located on one side of the air outlet of the fan 30. It can be understood that the gas in the curing chamber 11 flows into the flow channel 21 from the first gas guide hole 13 under the driving of the fan 30, moves in the flow channel 21 along the axial direction of the fan 30 under the action of the fan 30, and then flows back into the curing chamber 11 from the second gas guide hole 14 after being heated by the heater 40. It can be understood that the gas in the curing chamber 11 flows into the flow channel 21 from the first gas guide hole 13 at the same time, and the gas in the flow channel 21 also flows into the curing chamber 11 from the second gas guide hole 14. The gas circulates between the curing chamber 11 and the flow channel 21, the temperature of the gas in the curing chamber 11 gradually increases, and finally reaches the preset temperature, so that the curing efficiency of the curing chamber 11 is improved.

[0046] In the embodiment, in order to avoid that the gas flowing back into the curing chamber 11 from the second gas guide hole 14 quickly flows into the flow channel 21 from the first gas guide hole 13, a baffle (not shown in the figure) is arranged on the inner wall of the curing chamber 11, and the baffle is arranged between the first gas guide hole 13 and the second gas guide hole 14. It can be understood that by arranging the baffle, the heated gas flowing back into the curing chamber 11 from the second gas guide hole 14 can continue to flow downward in the curing chamber 11, thereby improving the uniform heating effect of the curing chamber 11 and avoiding that the bottom of the curing chamber 11 cannot be heated.

[0047] Specifically, in the embodiment, the first gas guide hole 13 and the second gas guide hole 14 are both square holes. The first gas guide hole 13 and the second gas guide hole 14 are arranged as one. In other embodiments, the first gas guide hole 13 and the second gas guide hole 14 can be arranged as circular holes. The first gas guide hole 13 and the second gas guide hole 14 can also be arranged as multiple holes. As long as the gas can pass through the first gas guide hole 13 and the second gas guide hole 14, the shape and number of the first gas guide hole 13 and the second gas guide hole 14 are not limited in the utility model.

[0048] It should be noted that in the present embodiment, the first air guide hole 13 and the second air guide hole 14 are both within the coverage of the cover 20, that is, the cover 20 completely covers the first air guide hole 13 and the second air guide hole 14. That is, in operation, the curing chamber 11 and the flow channel 21 are in a sealed state.

[0049] Further, in the present embodiment, the fan 30 is arranged opposite to the heater 40. It can be understood that the gas pressurized and accelerated by the fan 30 is directly blown to the heater 40 for heating. In the present embodiment, the heater 40 is arranged behind the air outlet of the fan 30. In other embodiments, the heater 40 can be arranged in front of the air inlet of the fan 30. As long as the gas in the flow channel 21 can be heated and accelerated, the present application does not limit the relative position of the fan 30 and the heater 40.

[0050] In the present embodiment, in order to ensure the heating effect of the heater 40, the heater 40 is arranged in close contact with the fan 30. It can be understood that the gas pressurized and accelerated by the fan 30 can completely enter the heater 40 for heating. Further, in the present embodiment, the height and width of the cover 20 match the height and width of the fan 30 and the heater 40, respectively, so that the fan 30 and the heater 40 can completely cover the cross section of the flow channel 21, so that the gas in the flow channel 21 can pass through the fan 30 and the heater 40.

[0051] Further, the arc-shaped air guide plate 23 is arranged in the flow channel 21. The arc-shaped air guide plate 23 is arranged at one end of the air inlet of the fan 30 and / or one end of the air outlet of the fan 30. Specifically, in the present embodiment, the side plate of the cover 20 is arranged as the arc-shaped air guide plate 23. It can be understood that the inner wall of the cover 20 is arc-shaped, which is used to guide the gas into the curing chamber 11 or the flow channel 21, so as to avoid the formation of vortex dead zones at the top of the cover 20, thereby reducing the utilization rate of the gas. In the present embodiment, the arc-shaped air guide plate 23 is arranged at one end of the air outlet of the fan 30. In other embodiments, the arc-shaped air guide plate 23 can be arranged at one end of the air inlet of the fan 30, or arranged at both the air outlet and the air inlet of the fan 30.

[0052] Please continue to refer to Figure 1 In the present embodiment, the first temperature sensor 12 is arranged in the curing chamber 11, and / or the second temperature sensor 22 is arranged on the heater 40.

[0053] It can be understood that the first temperature sensor 12 is used for detecting the gas temperature in the curing chamber 11. When the gas temperature in the curing chamber 11 reaches the preset temperature, that is, the gas temperature in the curing chamber 11 meets the heating and curing requirements of the object, at this time, the power of the fan 30 and the heater 40 can be reduced, and the gas temperature in the curing chamber 11 can be maintained. Specifically, in the embodiment, the number of the first temperature sensor 12 is one, which is arranged at the middle position in the curing chamber 11. It can be understood that in the embodiment, when the object is placed in the curing chamber 11, the first temperature sensor 12 is arranged in the middle of the curing chamber 11, which is convenient for directly obtaining the gas temperature at the object. Of course, in other embodiments, the number of the first temperature sensor 12 can be multiple, which respectively obtains the temperature at different positions in the curing chamber 11, so as to detect whether the temperature in the curing chamber 11 is uniform. The number and position of the first temperature sensor 12 are not limited in the utility model.

[0054] In the embodiment, the second temperature sensor 22 is arranged on the heater 40. It can be understood that the second temperature sensor 22 is used for detecting the temperature of the heater 40. When the temperature of the heater 40 reaches the preset temperature, that is, the temperature of the heater 40 is too high, and the continuous work can cause the damage of the heater 40, at this time, the heater 40 needs to be turned off, and then restarted after cooling. By arranging the second temperature sensor 22, the temperature of the heater 40 can be detected, and the heater 40 is stopped when the temperature is high, so as to avoid the damage of the heater 40.

[0055] In order to facilitate the maintenance of the fan 30 and the heater 40, the cover 20 is detachably connected with the curing box body 10. Specifically, in the embodiment, the cover 20 is installed on the curing box body 10 through bolts. When the fan 30 and the heater 40 need to be disassembled, the cover 20 above the curing box body 10 is first disassembled.

[0056] In order to facilitate the placing or taking out of the object, in the embodiment, the curing box body 10 is further provided with a box door (not shown in the figure). An opening 17 is formed on one side of the curing box body 10, and the box door is arranged at the opening 17 and forms the curing chamber 11 with the curing box body 10. By arranging the box door, the object can be placed or taken out by opening the box door. It can be understood that when the box door is closed, the curing chamber 11 and the flow channel 21 are in a sealed state.

[0057] In the embodiment, the inner wall of the curing box body 10 is provided with a light source 112. Specifically, the light source 112 is an array ultraviolet light source 112. It can be understood that in the embodiment, the curing chamber 11 can perform light curing on the object. By arranging the light source 112 as an array ultraviolet light source 112, uniform curing conditions are provided for the object, so that the light source 112 can uniformly irradiate the surface of the object.

[0058] Further, in order to improve the object curing efficiency, in the embodiment, the curing box body 10 is provided with a rotating platform 111 located in the curing chamber 11.

[0059] Further, in the embodiment, in order to facilitate observation of the object curing state, the curing box body 10 is further provided with an observation window (not shown in the figure).

[0060] The curing box 100 provided by the embodiment of the utility model has the beneficial effects that:

[0061] The curing box 100 comprises a curing box body 10 and a control module. The curing box body 10 is provided with a curing chamber 11. The control module comprises a ventilation assembly and a heating assembly. The ventilation assembly is arranged on the curing box body 10 and is used for supplying the curing chamber 11 with gas. Specifically, the gas is an anti-oxidation gas. The heating assembly is used for heating the gas. By supplying the curing chamber 11 with the anti-oxidation gas, the oxygen concentration in the curing chamber 11 is reduced, thereby preventing the oxygen from contacting the surface of the object and improving the curing quality of the surface of the object. By arranging the heating assembly, the temperature of the curing chamber 11 is controlled, thereby improving the curing efficiency of the object and the strength of the object curing.

[0062] Further, the heating assembly comprises a cover 20, a fan 30 and a heater 40. The cover 20 is fixed to the curing box body 10. The cover 20 is provided with a flow channel 21. The flow channel 21 is in communication with the curing chamber 11. The fan 30 is arranged in the flow channel 21, so that the gas flows between the curing chamber 11 and the flow channel 21. The heater 40 is arranged in the flow channel 21 and is used for heating the gas in the flow channel 21. By arranging the flow channel 21, the situation that the fan 30 cannot form negative pressure around the fan 30 due to the direct blowing of the fan 30 to the curing chamber 11 is avoided, the gas can be driven by the fan 30 to enter the flow channel 21, heated by the heater 40 and then returned to the curing chamber 11, so that the gas in the curing chamber 11 is heated in circulation, thereby controlling the temperature of the curing chamber 11.

[0063] The above is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A curing oven (100) characterized by, The application relates to a curing box, which comprises: a curing box body (10) provided with a curing chamber (11); a control module comprising a ventilation assembly arranged on the curing box body (10) and used for supplying gas into the curing chamber (11); the control module further comprises a heating assembly used for controlling the temperature of the curing chamber (11).

2. The curing oven (100) according to claim 1, characterized in that The heating assembly comprises a cover (20), a fan (30) and a heater (40). The cover (20) is fixed to the curing box body (10), and a flow channel (21) is arranged in the cover (20) and communicates with the curing chamber (11). The fan (30) is arranged in the flow channel (21) to make the gas flow between the curing chamber (11) and the flow channel (21). The heater (40) is arranged in the flow channel (21) and used for heating the gas in the flow channel (21).

3. The curing oven (100) according to claim 2, characterized in that The fan (30) is a centrifugal impeller fan (30).

4. The curing oven (100) according to claim 2, characterized in that The curing box body (10) is provided with air guide holes, the curing chamber (11) and the flow channel (21) communicate through the air guide holes, the air guide holes comprise first air guide holes (13) and second air guide holes (14), and the first air guide holes (13) and the second air guide holes (14) are respectively located on the two sides of the fan (30).

5. The curing oven (100) of claim 2, characterized in that, The fan (30) is arranged opposite to the heater (40).

6. The curing oven (100) of claim 2, wherein, An arc-shaped air deflector (23) is arranged in the flow channel (21), and the arc-shaped air deflector (23) is arranged at one end of an air inlet of the fan (30) and / or one end of an air outlet of the fan (30).

7. The curing oven (100) of claim 2, wherein, A first temperature sensor (12) is arranged in the curing chamber (11), and / or a second temperature sensor (22) is arranged on the heater (40).

8. The curing oven (100) of claim 1, wherein, The ventilation assembly is used for supplying nitrogen into the curing chamber (11).

9. The curing oven (100) of claim 1, wherein, A light source (112) is arranged on the inner wall of the curing box body (10), and the light source (112) is an array ultraviolet light source (112).

10. The curing oven (100) of claim 1, wherein, The curing box body (10) is provided with a rotating platform (111) located in the curing chamber (11).

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