3D printer with cooling function

Abstract

The utility model belongs to the technical field of 3D printing, and particularly relates to a 3D printer with a cooling function, which comprises a base, a transmission bracket is arranged above the base, a material storage part is arranged on the transmission bracket, the top of the material storage part is connected with a material conveying pipe, and a spray head cooling component is mounted in the middle of the transmission bracket; the spray head cooling assembly comprises a connecting block and a cooling mechanism, the connecting block is fixed to the bottom of the material conveying pipe, a printing head is fixed to the bottom of the connecting block, the cooling mechanism comprises a cooling ring and a storage box, the cooling ring is fixed to the outer side of the printing head, and a backflow pipe and an input pipe are arranged between the cooling ring and the storage box. The cooling liquid can be driven to circularly flow on the outer side of the printing head when the printing head is overheated, the effect of reducing the temperature of the printing head is achieved, the effect of reducing the temperature of the printing head can be accelerated through continuous circular flow of the cooling liquid after printing is completed, and faults of the printing head are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printing, and in particular relates to a 3D printer with a cooling function. Background Art

[0002] A 3D printer is a technical device that constructs objects by printing layer by layer based on digital model files, using bondable materials such as powdered metal or plastic. The print head is the part of the 3D printer responsible for extruding molten plastic. It needs to be heated to a certain temperature to maintain the fluidity of the material. During the printing process, the temperature of the print head may be very high, usually close to 250 degrees. Therefore, the print head needs to have an effective heat dissipation mechanism to prevent overheating. At the same time, it also needs to be cooled after printing to protect the safety of the print and the printer itself. Utility Model Content

[0003] The purpose of the utility model is to provide a 3D printer with a cooling function, which can drive the coolant to circulate outside the print head when the print head is overheated, so as to reduce the temperature of the print head. After printing is completed, the continuous circulation of the coolant can accelerate the reduction of the print head temperature, thereby avoiding malfunction of the print head.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A 3D printer with a cooling function comprises a base, a transmission bracket is arranged above the base, a material storage part is arranged on the transmission bracket, a material conveying pipe is connected to the top of the material storage part, and a nozzle cooling component is installed in the middle of the transmission bracket;

[0006] The nozzle cooling assembly includes a connecting block and a cooling mechanism, wherein the connecting block is fixed at the bottom of the material conveying pipe, a print head is fixed at the bottom of the connecting block, and the cooling mechanism includes a cooling ring and a storage box, wherein the cooling ring is fixed at the outside of the print head, and a return pipe and an input pipe are arranged between the cooling ring and the storage box.

[0007] Furthermore, a first partition is fixed inside the cooling ring and between the return pipe and the input pipe, and a circulation channel is formed between the cooling ring, the storage box, the return pipe and the input pipe.

[0008] Furthermore, a second partition is provided inside the storage box, and the interior of the storage box is divided into a liquid storage chamber and an equipment chamber by the second partition. A micro water pump is installed in the equipment chamber, the other end of the reflux pipe is connected to the micro water pump, and an outlet pipe is provided at the output end of the micro water pump.

[0009] Furthermore, the transmission bracket includes a translation bracket, which is slidably installed above the base, the inner side of the translation bracket is slidably connected to a lifting bracket, one side of the lifting bracket is slidably connected to a translation slider, and one side of the top of the translation slider is fixed to a connecting rod.

[0010] Furthermore, a printing platform is fixed on the top of the base.

[0011] Furthermore, an end surface of the base is provided with an inclined surface, and the inclined surface of the base is provided with a control panel.

[0012] The technical effects achieved by the utility model are:

[0013] The utility model provides a circulation channel and controls the flow of coolant in the circulation channel by a micro water pump. The coolant flows through the outside of the print head to take away the heat of the print head, reduce the temperature of the print head, and control the temperature of the print head.

[0014] The present invention arranges a small amount of coolant in the storage box so that when the coolant circulates, the coolant flows through the print head intermittently, ensuring that the print head can maintain sufficient heat, thereby ensuring normal extrusion of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the back side of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the nozzle cooling component of the utility model;

[0018] Figure 4 It is a schematic diagram of the partial structural section of the circulation channel of the utility model;

[0019] Figure 5 It is a schematic structural cross-sectional view of one side of the cooling mechanism of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Base; 2. Control panel; 3. Translation bracket; 4. Print table; 5. Lifting bracket; 6. Translation slider; 7. Material storage unit; 8. Material conveying pipe; 10. Nozzle cooling assembly; 11. Connecting block; 12. Print head; 13. Cooling ring; 14. Storage box; 15. Connecting rod; 16. Reflux pipe; 17. Input pipe; 18. First partition; 19. Micro water pump; 20. Second partition. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0023] like Figures 1 to 5 As shown, a 3D printer with a cooling function comprises a base 1, a transmission bracket is arranged above the base 1, a material storage part 7 is arranged on the transmission bracket, a material conveying pipe 8 is connected to the top of the material storage part 7, and a nozzle cooling component 10 is installed in the middle of the transmission bracket;

[0024] The nozzle cooling assembly 10 includes a connection block 11 and a cooling mechanism. The connection block 11 is fixed to the bottom of the material conveying pipe 8. A print head 12 is fixed to the bottom of the connection block 11. The cooling mechanism includes a cooling ring 13 and a storage box 14. The cooling ring 13 is fixed to the outside of the print head 12. A return pipe 16 and an input pipe 17 are provided between the cooling ring 13 and the storage box 14. A printing table 4 is fixed to the top of the base 1.

[0025] One end surface of the base 1 is provided with an inclined surface, and the inclined surface of the base 1 is provided with a control panel 2;

[0026] In the above, the device is opened and closed by the control panel 2. During the printing process, the material is transported to the print head 12 through the material conveying pipe 8 for spraying, and the print head 12 is controlled to move in three axes through the transmission bracket to complete the full range of printing needs. In this process, the cooling mechanism is intermittently started to make the coolant intermittently flow through the print head 12, thereby reducing the temperature of the print head 12 and protecting the print head 12.

[0027] Please refer again Figure 3 and Figure 4 As shown, a first baffle 18 is fixed inside the cooling ring 13 and between the return pipe 16 and the input pipe 17, and a circulation channel is formed between the cooling ring 13, the storage box 14, the return pipe 16 and the input pipe 17;

[0028] As mentioned above, the circulation channel is composed of a cooling ring 13, a storage box 14, a return pipe 16 and an input pipe 17, and is filled with a coolant for cooling. When the print head 12 generates too much heat, the coolant filled therein turns gray and flows in the circulation channel, taking away the heat of the print head 12. Such a heat exchange process can effectively reduce the temperature of the print head 12 and avoid damage or deformation caused by excessive temperature.

[0029] Please refer again Figure 5As shown, a second partition 20 is provided inside the storage box 14, and the inside of the storage box 14 is divided into a liquid storage chamber and an equipment chamber by the second partition 20. A micro water pump 19 is installed in the equipment chamber, and the other end of the reflux pipe 16 is connected to the micro water pump 19. The output end of the micro water pump 19 is provided with a water outlet pipe;

[0030] In the above, the height of the coolant stored in the liquid storage chamber does not exceed the height of the water outlet pipe. When circulating and cooling, the micro water pump 19 will control the coolant to flow intermittently, and draw it to the storage box 14 through the micro water pump 19. At this time, the coolant completely enters the circulation channel under the action of suction. When the coolant passes through the cooling ring 13, it can cool the print head 12. After the cooling is completed, the coolant flows back to the storage box 14 through the reflux pipe 16. By intermittently controlling the coolant to flow through the print head 12, the temperature of the print head 12 can be controlled, and the temperature of the print head 12 will not be too low, thereby ensuring the normal operation of the print head 12.

[0031] Please also read Figure 1 and Figure 2 As shown, the transmission bracket includes a translation bracket 3, which is slidably installed above the base 1, and the inner side of the translation bracket 3 is slidably connected to a lifting bracket 5, and one side of the lifting bracket 5 is slidably connected to a translation slider 6, and one side of the top of the translation slider 6 is fixed to the connecting rod 15;

[0032] As mentioned above, the translation bracket 3 is able to drive the lifting bracket 5 and the other structures installed on the lifting bracket 5 and the translation bracket 3 to translate on the base 1; the lifting bracket 5 is able to drive the other structures installed on the lifting bracket 5 to translate up and down on the translation bracket 3; the translation slider 6 installed on the lifting bracket 5 is able to drive the nozzle cooling assembly 10 to translate laterally on the lifting bracket 5, thereby realizing three-axis control of the print head 12.

[0033] The working principle of the utility model is as follows: by heating the material in the material storage part 7 and conveying it to the print head 12 through the material conveying pipe 8, and at the same time controlling the print head 12 to move in three axes through the transmission bracket, the stacking of the extruded material is completed. During the extrusion process, the coolant can be driven to flow in the circulation channel by the micro water pump 19. When flowing through the print head 12, the heat of the print head 12 can be taken away, thereby reducing the temperature of the print head 12. At the same time, the micro water pump 19 controls the flow of the coolant to be intermittent, and the coolant will not fill the circulation channel, which can avoid the abnormal extrusion of the material caused by the excessively low temperature of the print head 12, and can also well control the temperature of the print head 12, which is more convenient to use.

[0034] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A 3D printer with a cooling function, characterized in that: It comprises a base (1), a transmission bracket is arranged above the base (1), a material storage part (7) is arranged on the transmission bracket, a material conveying pipe (8) is connected to the top of the material storage part (7), and a nozzle cooling assembly (10) is installed in the middle of the transmission bracket; The nozzle cooling assembly (10) comprises a connecting block (11) and a cooling mechanism, wherein the connecting block (11) is fixed to the bottom of a material conveying pipe (8), a printing head (12) is fixed to the bottom of the connecting block (11), and the cooling mechanism comprises a cooling ring (13) and a storage box (14), wherein the cooling ring (13) is fixed to the outside of the printing head (12), and a return pipe (16) and an input pipe (17) are arranged between the cooling ring (13) and the storage box (14).

2. A 3D printer with a cooling function according to claim 1, characterized in that: A first partition plate (18) is fixed inside the cooling ring (13) and between the return pipe (16) and the input pipe (17), and a circulation channel is formed between the cooling ring (13), the storage box (14), the return pipe (16) and the input pipe (17).

3. A 3D printer with a cooling function according to claim 1, characterized in that: A second partition (20) is provided inside the storage box (14), and the interior of the storage box (14) is divided into a liquid storage chamber and an equipment chamber by the second partition (20). A micro water pump (19) is installed in the equipment chamber, and the other end of the reflux pipe (16) is connected to the micro water pump (19), and a water outlet pipe is provided at the output end of the micro water pump (19).

4. A 3D printer with a cooling function according to claim 1, characterized in that: The transmission bracket comprises a translation bracket (3), the translation bracket (3) is slidably mounted above the base (1), the inner side of the translation bracket (3) is slidably connected to a lifting bracket (5), one side of the lifting bracket (5) is slidably connected to a translation slider (6), and one side of the top of the translation slider (6) is fixed to a connecting rod (15).

5. The 3D printer with a cooling function according to claim 1, characterized in that: A printing platform (4) is fixed on the top of the base (1).

6. The 3D printer with a cooling function according to claim 1, characterized in that: One end surface of the base (1) is provided with an inclined surface, and the inclined surface of the base (1) is provided with a control panel (2).

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