Photocuring 3D printer printing bin constant temperature mechanism

Abstract

The utility model discloses a photo-curing 3D printer printing bin constant temperature mechanism, and relates to the technical field of photo-curing 3D printers, the mechanism comprises a printer body, a printing bin is arranged in the printer body, a placing box used for placing resin materials is arranged in the printing bin, one side of the printer body is hinged with a heat insulation door, and the other side of the printer body is hinged with a heat insulation cover. The device further comprises a heating assembly and ventilation assemblies, the heating assembly is arranged at the lower end of the containing box and used for heating the photosensitive resin material, and the ventilation assemblies are arranged at the left end and the right end of the printing bin and used for improving the cooling effect. The temperature rising assembly is arranged, the internal environment of the printing bin can be integrally heated, the surface of the containing box can be heated, then resin materials can rapidly reach the proper temperature, the ventilation assembly is arranged, efficient ventilation and heat dissipation treatment is conducted on the interior of the printing bin, and when the temperature is about to exceed the optimal interval value, the draught fan is started, and the heat dissipation efficiency is improved. And the cooling operation can be quickly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of light-curing 3D printers, in particular to a constant temperature mechanism for a printing chamber of a light-curing 3D printer. Background Art

[0002] Light-curing 3D printers use photosensitive resin materials, which have high temperature requirements and can achieve optimal performance in the range of 20-30°C. Exceeding the upper or lower limit of this temperature range can easily cause the performance of the printed product material to deteriorate. In the existing technology, the material temperature is often kept constant by heating the entire environment of the printing chamber. With air as the conductive medium, a heater is used to increase the ambient temperature in the printing chamber, thereby indirectly increasing the temperature of the photosensitive resin material. However, the heater in this method causes uneven heating of the resin material, and the printer needs to use a single fan to achieve ventilation and heat dissipation of the printing chamber during use. The one-way ventilation results in a small air flow, resulting in low printer efficiency.

[0003] Based on this, a constant temperature mechanism for a printing chamber of a light-curing 3D printer is now provided, which can eliminate the disadvantages of the existing mechanism. Utility Model Content

[0004] The purpose of the utility model is to provide a constant temperature mechanism for a printing chamber of a light-curing 3D printer, so as to solve the problems in the background art of uneven heating of resin materials and small air flow caused by single-fan ventilation.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A constant temperature mechanism for a print chamber of a light-curing 3D printer comprises a printer body, a print chamber disposed inside the printer body, a placement box for placing resin materials inside the print chamber, an insulation door hingedly connected to one side of the printer body, and a heating component and a ventilation component. The heating component is disposed at the lower end of the placement box and is used to heat the photosensitive resin material, and the ventilation components are disposed at the left and right ends of the print chamber and are used to enhance the cooling effect.

[0007] Preferably, the heating component includes a shell arranged on the outside of the placement box, a heating element cooperating with the placement box is provided above the shell, a cover is installed on the top of the shell, a chamber is provided inside the shell, and serpentine heat pipes are symmetrically provided in the chamber, the serpentine heat pipes are fixedly connected to the inner wall of the chamber through a bracket, a heater is installed at the lower end of the shell, the heater is fixedly connected to the bottom wall of the printing chamber, and the heater is connected to one end of the serpentine heat pipe.

[0008] Preferably, the ventilation assembly includes symmetrically arranged openings, a wind tube is provided on a side of the opening away from the printing chamber, a fan is installed inside the wind tube, and a filter is provided on one side of the wind tube.

[0009] Preferably, the heating element includes a first reflective plate arranged on the top wall of the printing chamber, the first reflective plate is fixedly connected to the printing chamber by bolts, a second reflective plate is provided at the lower end of the first reflective plate, and a heating tube is fixedly connected to the middle of the first reflective plate.

[0010] Preferably, a thermal insulation layer is installed on the inner wall of the printing chamber and the shell.

[0011] Preferably, temperature sensors are installed on the inner wall of the printing chamber and the shell, and a control panel is installed on one side of the printer body, and the control panel is electrically connected to the temperature sensor.

[0012] Preferably, an observation window is fixedly installed on the surface of the heat-insulating door, and the observation window is made of transparent material. A sealing strip is fixedly connected to the side of the heat-insulating door close to the printing chamber.

[0013] Preferably, a baffle is installed between the fan and the opening, and a plurality of through holes are evenly opened on the surface of the baffle.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model is provided with a heating component. With the cooperation of the heating elements, the internal environment of the printing chamber can be heated as a whole, and the surface of the placement box can be heated, so that the resin material can quickly reach the appropriate temperature;

[0016] 2. The utility model is provided with a ventilation component to efficiently ventilate and dissipate heat inside the printing chamber, which is convenient for subsequent operations. When the temperature is about to exceed the optimal range value, the fan is started to quickly cool down the temperature.

[0017] 3. The present invention is provided with a temperature sensor and a control panel to facilitate comparison and recording of the temperature inside the printing chamber and the shell, so that the surface temperature of the resin material can be kept between 20 and 30°C. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of one side of the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 3 It is a structural diagram of the present utility model.

[0021] Figure 4 It is a sectional view of the front view of the present invention.

[0022] Figure 5 It is a cutaway view from the right side of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the shell of the present utility model.

[0024] Figure 7 This is a schematic structural diagram of the heating element of the present invention.

[0025] Notes on figure markings: 101, printer body; 102, print chamber; 103, placement box; 104, heat-insulating door; 105, temperature sensor; 106, control panel; 107, observation window; 200, heating component; 201, shell; 202, cover; 203, serpentine heat pipe; 204, heater; 205, first reflector; 206, second reflector; 207, heating pipe; 300, ventilation component; 301, opening; 302, air duct; 303, fan; 304, filter; 305, baffle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] In this embodiment, if Figure 1-Figure 7 As shown, a constant temperature mechanism for a print chamber of a light-curing 3D printer includes a printer body 101. A support seat is symmetrically provided at the lower end of the printer body 101 to play a supporting role and facilitate movement. A print chamber 102 is provided inside the printer body 101. A placement box 103 for placing resin materials is provided inside the print chamber 102. The placement box 103 is made of a material with good thermal conductivity to facilitate heat transfer to the resin material. An insulating door 104 is hinged on one side of the printer body 101 to prevent temperature loss. The printer body 101 also includes a heating component 200 and a ventilation component 300. The heating component 200 is provided at the lower end of the placement box 103 and is used to heat the photosensitive resin material. The ventilation components 300 are provided at the left and right ends of the print chamber 102 to improve the cooling effect. Before using the constant temperature mechanism for the print chamber of the light-curing 3D printer, check whether the mechanism can be used normally. Through the cooperation of the heating component 200 and the ventilation component 300, the temperature inside the print chamber 102 is maintained within a suitable temperature range to avoid exceeding the upper or lower temperature limit.

[0029] Among them Figure 2-Figure 7As shown, the heating component 200 includes a shell 201 arranged on the outside of the placement box 103, and a liquid with good thermal conductivity such as oil is provided inside the shell 201. A drain port is provided on one side of the shell 201 to facilitate the replacement of the liquid and prevent the liquid from being affected by the long-term heating treatment. A heating element that matches the placement box 103 is provided above the shell 201, and a cover 202 is installed on the top of the shell 201 to prevent the liquid inside the shell 201 from leaking out. A chamber is provided inside the shell 201, and a serpentine heat pipe 203 is symmetrically provided in the chamber. The serpentine heat pipe 203 can The contact area with the heat-conducting liquid is increased, thereby improving the heat transfer efficiency of the liquid. The serpentine heat pipe 203 is fixedly connected to the inner wall of the chamber through a bracket to increase the structural stability. A heater 204 is installed at the lower end of the shell 201. The heater 204 is fixedly connected to the bottom wall of the printing chamber 102. The heater 204 is connected to one end of the serpentine heat pipe 203. After the heater 204 is turned on, the temperature of the serpentine heat pipe 203 increases, thereby increasing the temperature of the liquid inside the shell 201, facilitating the rapid transfer of heat to the surface of the resin material, thereby improving the uniform heating efficiency of the resin material.

[0030] Among them Figure 2-Figure 4 As shown, the ventilation assembly 300 includes symmetrically arranged openings 301. A wind tube 302 is provided on a side of the opening 301 away from the printing chamber 102. A fan 303 is installed inside the wind tube 302. The two fans 303 are symmetrically arranged. One fan 303 is an exhaust fan, and the other fan 303 is a suction fan. The exhaust fan conveys internal air to the outside, and the suction fan absorbs external air into the printing chamber 102, thereby achieving ventilation and heat dissipation effects inside the printing chamber 102, facilitating rapid reduction of the temperature inside the printing chamber 102, and preventing the material from being affected by excessive temperature. A filter 304 is provided on one side of the wind tube 302, and the filter 304 can prevent external air from entering the printing chamber 102.

[0031] Among them Figure 7 As shown, the heating element includes a first reflective plate 205 provided on the top wall of the print chamber 102. The first reflective plate 205 is fixedly connected to the print chamber 102 by bolts. A second reflective plate 206 is provided at the lower end of the first reflective plate 205. Both the first reflective plate 205 and the second reflective plate 206 are reflective mirrors. The second reflective plate 206 has a certain inclination angle. A heating tube 207 is fixedly connected to the middle of the first reflective plate 205. When the heating tube 207 is working, the reflective plate can conduct heat transfer, so that the entire area of ​​the housing 201 is in a constant heat transfer position. With air as the conduction medium, the heat transfer efficiency is improved, thereby indirectly achieving a constant temperature state of the material.

[0032] Among them Figure 4As shown, the inner walls of the printing chamber 102 and the housing 201 are both provided with an insulation layer to prevent excessive heat loss, so that the temperature inside the printing chamber 102 is always kept constant, so that the printed product will not be partially separated or warped due to the temperature, thereby improving the printing quality;

[0033] Among them Figure 2 As shown, a baffle 305 is installed between the fan 303 and the opening 301. A plurality of through holes are evenly opened on the surface of the baffle 305. With the cooperation of the filter 304, the baffle 305 can prevent dust from entering the interior of the fan 303.

[0034] Example 2

[0035] The difference from Example 1 is that Figure 4 As shown, temperature sensors 105 are installed on the inner walls of the print chamber 102 and the housing 201. The temperature sensors 105 constantly monitor the temperature inside the print chamber 102 and the housing 201. If the internal temperature is too high, the output power of the heating tube 207 is controlled to be reduced. A control panel 106 is installed on one side of the printer body 101. The control panel 106 is electrically connected to the temperature sensor 105, so that the temperature sensor 105 can synchronously display the internal temperature of the print chamber 102 and the housing 201 on the control panel 106, which is convenient for comparison and convenient for quickly reaching the appropriate temperature.

[0036] Among them Figure 1 and Figure 5 As shown, an observation window 107 is fixedly installed on the surface of the heat insulation door 104. The observation window 107 is made of transparent material, which is convenient for observing the real-time situation inside the printing chamber 103. A sealing strip is fixedly connected to the side of the heat insulation door 104 close to the printing chamber 102 to increase the sealing effect.

[0037] When in use, first inject the heat-conducting liquid into the shell 101, close the cover 202, and start the heater 204 and the heating tube 207 through the control panel 106, so that the heater 204 heats the serpentine heat-conducting tube 203, and the serpentine heat-conducting tube 203 transfers heat to the heat-conducting liquid on the outside, so that the temperature of the heat-conducting liquid remains uniform. By cooperating with the heating element, the inside of the printing chamber 102 and the placement box 103 can be heated, thereby improving the heating efficiency. By placing the resin material in the placement box 103, the resin material can be kept warm, thereby achieving a constant temperature effect.

[0038] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A constant temperature mechanism for a printing chamber of a light-curing 3D printer, comprising a printer body (101), a printing chamber (102) disposed inside the printer body (101), a placement box (103) for placing resin materials inside the printing chamber (102), and an insulating door (104) hingedly connected to one side of the printer body (101); It is characterized by: It also includes a heating component (200), which is arranged at the lower end of the placement box (103) and is used to heat the photosensitive resin material; A ventilation assembly (300) is provided at the left and right ends of the printing chamber (102) to enhance the cooling effect.

2. The constant temperature mechanism for the printing chamber of a light-curing 3D printer according to claim 1, characterized in that: The heating component (200) comprises a shell (201) arranged outside the placement box (103); a heating element matched with the placement box (103) is provided above the shell (201); a cover (202) is installed on the top of the shell (201); a chamber is provided inside the shell (201); a serpentine heat pipe (203) is symmetrically provided in the chamber; the serpentine heat pipe (203) is fixedly connected to the inner wall of the chamber through a bracket; a heater (204) is installed at the lower end of the shell (201); the heater (204) is fixedly connected to the bottom wall of the printing chamber (102); and the heater (204) is connected to one end of the serpentine heat pipe (203).

3. The constant temperature mechanism for the printing chamber of a light-curing 3D printer according to claim 1, characterized in that: The ventilation assembly (300) comprises symmetrically arranged openings (301), a wind tube (302) is provided on a side of the opening (301) away from the printing chamber (102), a fan (303) is installed inside the wind tube (302), and a filter (304) is provided on one side of the wind tube (302).

4. The constant temperature mechanism for the printing chamber of a light-curing 3D printer according to claim 2, characterized in that: The heating element comprises a first reflecting plate (205) arranged on the top wall of the printing chamber (102), the first reflecting plate (205) being fixedly connected to the printing chamber (102) via bolts, a second reflecting plate (206) being provided at the lower end of the first reflecting plate (205), and a heating tube (207) being fixedly connected to the middle of the first reflecting plate (205).

5. The constant temperature mechanism for the printing chamber of a light-curing 3D printer according to claim 2, characterized in that: Insulation layers are installed on the inner walls of the printing chamber (102) and the housing (201).

6. The constant temperature mechanism for the printing chamber of a light-curing 3D printer according to claim 2, characterized in that: Temperature sensors (105) are installed on the inner walls of the printing chamber (102) and the housing (201), and a control panel (106) is installed on one side of the printer body (101). The control panel (106) is electrically connected to the temperature sensor (105).

7. The constant temperature mechanism for the printing chamber of a light-curing 3D printer according to claim 1, characterized in that: An observation window (107) is fixedly installed on the surface of the heat-insulating door (104), and the observation window (107) is made of a transparent material. A sealing strip is fixedly connected to one side of the heat-insulating door (104) close to the printing chamber (102).

8. The constant temperature mechanism for the printing chamber of a light-curing 3D printer according to claim 3, characterized in that: A baffle (305) is installed between the fan (303) and the opening (301), and a plurality of through holes are evenly opened on the surface of the baffle (305).

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