Heat preservation and cooling device and 3D printer

Abstract

The invention relates to the technical field of 3D printers, in particular to a heat preservation and cooling device and a 3D printer, the heat preservation and cooling device comprises a base, a box body, an air heater, a rotary table heat insulation cover, a nozzle heat insulation cover and a heat dissipation device, the box body is arranged on the base, and the nozzle heat insulation cover and the rotary table heat insulation cover are both arranged in the box body; the nozzle heat insulation cover is fixedly connected with the top of the box body, the rotary table heat insulation cover is fixedly connected with the bottom of the box body, the air heater is arranged on the side face of the box body, and the heat dissipation device is arranged below the box body. The rotary table heat insulation cover and the nozzle heat insulation cover meet the sealing requirement under complex movement, stability and reliability of a movement system are guaranteed, the movement system is isolated from a hot area, the heating space is compressed, the heating waiting time is shortened, the negative influence of heat on the system is reduced, the equipment performance is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of 3D printers, in particular to a heat preservation and cooling device and a 3D printer. Background Art

[0002] In the process of 3D printing, the filament is very likely to shrink and deform during the cooling stage. In order to ensure the quality of molding, it is particularly important to accurately control the temperature of the molding space. In traditional flat 3D printing technology, comprehensive insulation measures are usually taken in the inner cavity of the chassis to maintain temperature stability. Compared with flat 3D printing technology, the equipment structure of curved 3D printing technology introduces two additional degrees of freedom of platform rotation, which makes the movement space of the five-axis printing equipment wider.

[0003] Five-axis printing equipment usually has a nozzle assembly on the top of the chassis, including a nozzle drive device and a nozzle body. The nozzle drive device drives the nozzle body to perform three-axis motion; a turntable assembly is provided at the bottom of the chassis, including a turntable drive device and a turntable body. The turntable drive device drives the turntable body to rotate along the X-axis and Z-axis. Since the motion and control system of the five-axis printing equipment is more complex than that of traditional 3D printing equipment, it has a greater demand for installation space, and the space required for insulation is correspondingly increased, resulting in a longer waiting time for the overall heating of the chassis, affecting production efficiency. In addition, when operating in an environment where the chassis is heated as a whole, the high temperature environment may cause the performance of lubrication, sensing and other components in the motion device to decline, thereby affecting the stability and printing quality of the entire equipment. Summary of the invention

[0004] The technical problem to be solved by the present invention is to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] The solution to the technical problem of the present invention is: it includes a base, a box, a hot air blower, a turntable heat insulation cover, a nozzle heat insulation cover and a heat dissipation device, the box is arranged on the base, the box has an installation space inside, the nozzle heat insulation cover and the turntable heat insulation cover are both arranged in the installation space, so as to divide the installation space into a first installation space for installing a turntable assembly, a second installation space for heating printing and a third installation space for installing a nozzle assembly, the output end of the hot air blower is connected to the second installation space, the hot air blower is used to heat the second installation space, the heat dissipation device is connected to the first installation space, and the heat dissipation device is used to dissipate heat from the first installation space.

[0006] The beneficial effects of the present invention are as follows: the turntable heat shield and the nozzle heat shield can meet the sealing requirements of the turntable and the nozzle under complex motion conditions, ensuring the stability and reliability of the motion system. By dividing the installation space of the box into three independent spaces and isolating the motion system outside the hot zone, the effect of heat on the motion system can be significantly reduced, thereby improving the overall performance and service life of the equipment. In addition, it has the advantage of compressing the volume of the heating space. By reducing the volume of the space that needs to be heated, the energy consumption required for heating can be significantly saved. At the same time, a smaller heating space also means that the time it takes for the cavity temperature to reach the temperature required for printing will be shortened, thereby reducing the waiting time during the printing process and improving printing efficiency.

[0007] As a further improvement of the above technical solution, the heat preservation and cooling device also includes a door panel, a first opening is provided on the front side of the box body, the door panel is used to open or close the first opening, and an observation window is provided on the door panel.

[0008] As a beneficial effect of further improvement of the above technical solution, the third opening is used for taking and placing items, and the door panel ensures that the third opening can maintain good sealing performance when not in use, and can also effectively prevent outside air and pollutants from entering the interior of the box, thereby maintaining the stability of the internal environment of the box. In addition, the observation window on the door panel enables the user to view the internal situation of the box without opening the door panel, reducing unnecessary temperature fluctuations and energy consumption.

[0009] As a further improvement of the above technical solution, the turntable heat insulation cover includes a first accordion cover and a first sealing plate, the first sealing plate is used to install the turntable body in the turntable assembly, the first accordion cover is arranged in the vertical direction, one end of the first accordion cover is fixedly connected to the first sealing plate, and the other end of the first accordion cover is fixedly connected to the inner bottom surface of the box body, the first accordion cover encloses a first channel, the first sealing plate, the first channel and the bottom plate of the box body enclose the first installation space, the bottom of the box body is provided with a second opening connected to the first installation space, so that the turntable drive device in the turntable assembly can be installed in the first installation space, and the first sealing plate is provided with a turntable mounting hole, and the turntable mounting hole connects the first installation space and the second installation space, so that the turntable drive device in the first installation space is connected to the turntable body installed in the second installation space.

[0010] As a beneficial effect of further improvement of the above technical solution, the overall stability and reliability of the turntable heat insulation cover are improved, ensuring the accuracy and stability of the turntable during operation; through effective sealing design, external heat and dust are isolated, the turntable drive device is protected, and its service life is extended, the installation environment of the turntable drive device is optimized, and its operating efficiency and reliability are improved, thereby improving the performance of the entire equipment; the first accordion cover can change its shape accordingly according to the needs of the movement when the turntable performs two-axis movement, ensuring that the accordion cover will not have a negative impact on the sealing performance during movement, thereby maintaining the overall sealing effect of the system, which not only improves the thermal insulation performance of the equipment, but also ensures its reliability and stability in dynamic movement.

[0011] As a further improvement of the above technical solution, the turntable heat insulation cover also includes a first sealing ring and a second sealing ring, the first sealing ring is arranged between the first accordion cover and the first sealing plate, and the second sealing ring is arranged between the first accordion cover and the box body, and the first sealing ring and the second sealing ring are used to prevent hot air in the second installation space from penetrating into the first installation space through the installation gap.

[0012] As a further improvement of the above technical solution, the first sealing ring ensures the sealing between the first bellows cover and the first sealing plate, effectively preventing heat from being transferred through this gap, and the second sealing ring ensures the sealing between the first bellows cover and the box body, further enhancing the overall sealing performance of the turntable heat insulation cover. The sealing performance and heat insulation effect of the turntable heat insulation cover are improved through double sealing.

[0013] As a further improvement of the above technical solution, the turntable heat insulation cover includes a first accordion cover and a first sealing plate, the first sealing plate is used to install the turntable body in the turntable assembly, the first accordion cover is arranged in the vertical direction, one end of the first accordion cover is fixedly connected to the first sealing plate, and the other end of the first accordion cover is fixedly connected to the inner bottom surface of the box body, the first accordion cover encloses a first channel, the first sealing plate, the first channel and the bottom plate of the box body enclose the first installation space, the bottom of the box body is provided with a second opening connected to the first installation space, so that the turntable drive device in the turntable assembly can be installed in the first installation space, and the first sealing plate is provided with a turntable mounting hole, and the turntable mounting hole connects the first installation space and the second installation space, so that the turntable drive device in the first installation space is connected to the turntable body installed in the second installation space.

[0014] As a beneficial effect of further improvement of the above technical solution, the second sealing plate ensures the tightness and sealing of the connection between the conical accordion cover and the nozzle. The second accordion cover avoids the influence of hot air on the wire extrusion mechanism above the nozzle, thereby improving the stability of the wire extrusion process and the quality of the product. The nozzle can work more stably in a high temperature environment, reducing failures and defective products caused by hot air interference, thereby improving the efficiency and reliability of the entire production line.

[0015] As a further improvement of the above technical solution, the second accordion cover is in a cone shape, and the width of the second accordion cover gradually increases from the bottom of the second accordion cover to the top of the second accordion cover.

[0016] As a further improvement of the above technical solution, the second bellows can play a major role in heat insulation. When the nozzle moves in three axes, the conical compressible structure can change accordingly without any negative impact on the sealing performance. This design not only improves the heat insulation effect of the equipment, but also ensures good sealing performance during dynamic movement, thereby improving the stability and reliability of the overall equipment.

[0017] As a further improvement of the above technical solution, the nozzle heat insulation cover also includes a third sealing ring and a fourth sealing ring, the third sealing ring is arranged between the second accordion cover and the second sealing plate, and the fourth sealing ring is arranged between the second accordion cover and the box body, and the third sealing ring and the fourth sealing ring are used to prevent hot air in the second installation space from penetrating into the third installation space through the installation gap.

[0018] As a beneficial effect of further improvement of the above technical solution, the third sealing ring ensures the sealing between the second accordion cover and the second sealing plate, effectively preventing heat from propagating through this path. The fourth sealing ring ensures the sealing between the second accordion cover and the box body, and the addition further strengthens the sealing effect between the second accordion cover and the box body, making the thermal efficiency of the entire system higher, thereby improving the operating efficiency and safety of the equipment.

[0019] As a further improvement of the above technical solution, the heat dissipation device includes an air inlet duct and an air outlet duct, the bottom surface of the box body is provided with an air inlet and an air outlet, one end of the air inlet duct is connected to the external space, the other end of the air inlet duct is connected to the first installation space through the air inlet, one end of the air outlet duct is connected to the first installation space through the air outlet, and the other end of the air outlet duct is connected to the external space.

[0020] As a further improvement of the above technical solution, through the coordinated work of the air inlet pipe and the air outlet pipe, the air in the external space can enter the first installation space through the air inlet pipe to take away the heat generated during the operation of the equipment. At the same time, the hot air is quickly discharged through the air outlet pipe, avoiding the accumulation of heat inside the equipment, thereby effectively preventing the equipment from overheating.

[0021] A 3D printer comprises the heat preservation and cooling device as described in any one of the above items, as well as a nozzle assembly and a turntable assembly, wherein the nozzle assembly comprises a nozzle drive device and a nozzle body, and the turntable assembly comprises a turntable drive device and a turntable body.

[0022] The beneficial effects of the present invention are: by compressing the heating space, the time required to wait for the cavity temperature to reach an ideal state during the printing process is reduced, thereby improving the overall printing efficiency and ensuring the stability of the printing quality; the cooling device ensures the smooth progress of the entire printing process and reduces equipment downtime caused by excessively high or unstable temperatures; the heat preservation and cooling device not only optimizes the printing process, but also significantly improves production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the turntable heat shield; Figure 4 is a schematic diagram of the structure of the heat dissipation device; Figure 5 It is a schematic diagram of the structure of the nozzle heat shield.

[0024] In the accompanying drawings: 1-base, 2-box, 201-first installation space, 202-second installation space, 203-third installation space, 3-hot air blower, 4-turntable heat insulation cover, 401-first accordion cover, 402-first sealing plate, 403-first sealing ring, 404-second sealing ring, 5-nozzle heat insulation cover, 501-second accordion cover, 502-second sealing plate, 503-third sealing ring, 504-fourth sealing ring, 6-heat dissipation device, 602-air inlet pipe, 603-air outlet pipe, 604-coil, fan-605, 7-door panel, 701-observation window. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the above briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0026] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the present invention can be combined interchangeably without conflicting with each other.

[0027] In the process of 3D printing, the filament is very likely to shrink and deform during the cooling stage. In order to ensure the quality of molding, it is particularly important to accurately control the temperature of the molding space. In traditional flat 3D printing technology, comprehensive insulation measures are usually taken in the inner cavity of the chassis to maintain temperature stability. Compared with flat 3D printing technology, the equipment structure of curved 3D printing technology introduces two additional degrees of freedom of platform rotation, which makes the movement space of the five-axis printing equipment wider.

[0028] Five-axis printing equipment usually has a nozzle assembly on the top of the chassis, including a nozzle drive device and a nozzle body. The nozzle drive device drives the nozzle body to perform three-axis motion; a turntable assembly is provided at the bottom of the chassis, including a turntable drive device and a turntable body. The turntable drive device drives the turntable body to rotate along the X-axis and Z-axis. Since the motion and control system of the five-axis printing equipment is more complex than that of traditional 3D printing equipment, it has a greater demand for installation space, and the space required for insulation is correspondingly increased, resulting in a longer waiting time for the overall heating of the chassis, affecting production efficiency. In addition, when operating in an environment where the chassis is heated as a whole, the high temperature environment may cause the performance of lubrication, sensing and other components in the motion device to decline, thereby affecting the stability and printing quality of the entire equipment.

[0029] To this end, a heat preservation and cooling device, referring to Figure 1 to Figure 5, which includes a base 1, a box body 2, a hot air blower 3, a turntable heat insulation cover 4, a nozzle heat insulation cover 5 and a heat dissipation device 6, the box body 2 is arranged on the base 1, and the box body 2 has an installation space inside, the nozzle heat insulation cover 5 and the turntable heat insulation cover 4 are both arranged in the installation space, so that the installation space is divided into a first installation space 201 for installing a turntable assembly, a second installation space 202 for heating printing and a third installation space 203 for installing a nozzle assembly, the output end of the hot air blower 3 is connected to the second installation space 202, the hot air blower 3 is used to heat the second installation space 202, the heat dissipation device 6 is connected to the first installation space 201, and the heat dissipation device 6 is used to dissipate heat from the first installation space 201.

[0030] The turntable heat shield 4 and the nozzle heat shield 5 can meet the sealing requirements of the turntable and the nozzle in complex motion states, ensuring the stability and reliability of the motion system. By dividing the installation space of the box 2 into three independent spaces and isolating the motion system outside the hot zone, the impact of heat on the motion system can be significantly reduced, thereby improving the overall performance and service life of the equipment. In addition, it has the advantage of compressing the volume of the heating space. By reducing the volume of the space that needs to be heated, the energy consumption required for heating can be significantly saved. At the same time, a smaller heating space also means that the time for the cavity temperature to reach the temperature required for printing will be shortened, thereby reducing the waiting time during the printing process and improving printing efficiency.

[0031] When in use, place the base 1 in a suitable position. The function of the base 1 is to adjust and ensure the horizontal setting of the printing platform to ensure the printing quality; install the box 2 on the base 1, and the nozzle assembly is located above the box 2. The nozzle assembly enters the third installation space 203 through the third opening on the top of the box 2. The nozzle body in the nozzle assembly is installed in the second installation space 202. The nozzle body is fixedly connected to the second sealing plate 502, and the nozzle drive device in the nozzle assembly is connected to the nozzle body through the nozzle installation hole; the second accordion cover 501 is firmly connected to the inner top surface of the box 2, and the second sealing plate 502 and the second accordion cover 501 work together to effectively separate the internal space of the box 2, thereby isolating the heating area from the nozzle drive device; the turntable assembly is installed below the box 2, and the turntable assembly is connected to the bottom of the box 2 through the bottom of the box 2 The second opening of the part enters the first installation space 201, the turntable body in the turntable assembly is installed in the second installation space 202, the turntable body is fixedly connected to the first sealing plate 402, and the turntable drive device in the turntable assembly is connected to the turntable body through the turntable mounting hole; the first accordion cover 401 is firmly connected to the inner bottom surface of the box body 2, and the first sealing plate 402 and the first accordion cover 401 work together to effectively separate the internal space of the box body 2, thereby isolating the heating area from the turntable drive device; the hot air blower 3 is installed on one side of the box body 2, and the output end of the hot air blower 3 is connected to the second installation space 202, and the hot air blower 3 is used to heat the second installation space 202, and the heat dissipation device 6 is connected to the first installation space 201, and the heat dissipation device 6 is used to dissipate heat from the first installation space 201.

[0032] During 3D printing, the temperature stability directly affects the melting and solidification process of the printing material, thereby determining the quality and accuracy of the final print. Therefore, in one embodiment, the heat preservation and cooling device further includes a door panel 7, a third opening is provided on the front of the box 2, the door panel 7 is used to open or close the third opening, and an observation window 701 is provided on the door panel 7. The third opening is used to take and place items, and the door panel 7 ensures that the third opening can maintain good sealing performance when not in use, and can also effectively prevent outside air and pollutants from entering the box 2, thereby maintaining the stability of the internal environment of the box 2. In addition, the observation window 701 on the door panel 7 enables the user to view the internal situation of the box 2 without opening the door panel 7, reducing unnecessary temperature fluctuations and energy consumption.

[0033] Printing operations need to be performed on a specific installation platform to ensure that the device can correctly identify and execute printing tasks. Therefore, in one embodiment, the turntable heat insulation cover 4 includes a first accordion cover 401 and a first sealing plate 402, the first sealing plate 402 is used to install the turntable body in the turntable assembly, the first accordion cover 401 is arranged in the vertical direction, one end of the first accordion cover 401 is fixedly connected to the first sealing plate 402, and the other end of the first accordion cover 401 is fixedly connected to the inner bottom surface of the box body 2, the first accordion cover 401 surrounds a first channel, the first sealing plate 402, the first channel and the bottom plate of the box body 2 surround the first installation space 201, and the bottom of the box body 2 is provided with a second opening connected to the first installation space 201, so that the turntable drive device in the turntable assembly can be installed in the first installation space 201, and the first sealing plate 402 is provided with a turntable mounting hole, and the turntable mounting hole connects the first installation space 201 and the second installation space 202, so that the turntable drive device in the first installation space 201 is connected to the turntable body installed in the second installation space 202. The overall stability and reliability of the turntable heat insulation cover 4 are improved, ensuring the accuracy and stability of the turntable during operation. Through effective sealing design, external heat and dust are isolated, the turntable drive device is protected, and its service life is extended. The installation environment of the turntable drive device is optimized, and its operating efficiency and reliability are improved, thereby improving the performance of the entire equipment. The first accordion cover 401 can change its shape accordingly according to the needs of the movement when the turntable performs two-axis movement, ensuring that the accordion cover will not have a negative impact on the sealing performance during movement, thereby maintaining the overall sealing effect of the system, which not only improves the thermal insulation performance of the equipment, but also ensures its reliability and stability in dynamic movement.

[0034] Heat leakage may occur at the connection part. Therefore, in one embodiment, the turntable heat insulation cover 4 also includes a first sealing ring 403 and a second sealing ring 404, wherein the first sealing ring 403 is arranged between the first accordion cover 401 and the first sealing plate 402, and the second sealing ring 404 is arranged between the first accordion cover 401 and the box body 2, and the first sealing ring 403 and the second sealing ring 404 are used to prevent the hot air in the second installation space 202 from penetrating into the first installation space 201 through the installation gap. The first sealing ring 403 ensures the sealing between the first accordion cover 401 and the first sealing plate 402, effectively preventing heat from being transferred through this gap, and the second sealing ring 404 ensures the sealing between the first accordion cover 401 and the box body 2, further strengthening the overall sealing performance of the turntable heat insulation cover 4. The sealing performance and heat insulation effect of the turntable heat insulation cover 4 are improved through double sealing.

[0035] In order to avoid the influence of heat on nozzle performance, the nozzle should be kept away from heat sources to avoid adverse effects of high temperature environment on nozzle materials and injection effects. Therefore, in one embodiment, the turntable heat insulation cover 4 includes a first accordion cover 401 and a first sealing plate 402, the first sealing plate 402 is used to install the turntable body in the turntable assembly, the first accordion cover 401 is arranged in the vertical direction, one end of the first accordion cover 401 is fixedly connected to the first sealing plate 402, and the other end of the first accordion cover 401 is fixedly connected to the inner bottom surface of the box body 2, the first accordion cover 401 surrounds a first channel, the first sealing plate 402, the first channel and the bottom plate of the box body 2 surround the first installation space 201, and the bottom of the box body 2 is provided with a second opening connected to the first installation space 201, so that the turntable drive device in the turntable assembly can be installed in the first installation space 201, and the first sealing plate 402 is provided with a turntable mounting hole, and the turntable mounting hole connects the first installation space 201 and the second installation space 202, so that the turntable drive device in the first installation space 201 is connected to the turntable body installed in the second installation space 202. The second sealing plate 502 ensures the tightness and sealing of the connection between the conical accordion cover and the nozzle. The second accordion cover 501 avoids the influence of hot air on the wire extrusion mechanism above the nozzle, thereby improving the stability of the wire extrusion process and the quality of the product. The nozzle can work more stably in a high temperature environment, reducing failures and defective products caused by hot air interference, thereby improving the efficiency and reliability of the entire production line.

[0036] When the nozzle is working, it needs to perform a series of complex three-axis movements to achieve the printing of complex geometric structures. Therefore, in one embodiment, the second accordion cover 501 is conical, and the width of the second accordion cover 501 gradually increases from the bottom of the second accordion cover 501 to the top of the second accordion cover 501. The second accordion cover 501 can play a major role in heat insulation. When the nozzle performs three-axis movement, the conical compressible structure can change accordingly without any negative impact on the sealing performance. This design not only improves the thermal insulation effect of the equipment, but also ensures that good sealing performance is maintained during dynamic movement, thereby improving the stability and reliability of the overall equipment.

[0037] Heat leakage will have a negative impact on the normal operation of the device. High temperature may cause premature aging or even damage of electronic components and mechanical parts inside the device, thereby reducing the reliability and stability of the device. Therefore, in one embodiment, the nozzle heat shield 5 also includes a third sealing ring 503 and a fourth sealing ring 504. The third sealing ring 503 is arranged between the second accordion cover 501 and the second sealing plate 502, and the fourth sealing ring 504 is arranged between the second accordion cover 501 and the box body 2. The third sealing ring 503 and the fourth sealing ring 504 are used to prevent the hot air in the second installation space 202 from penetrating into the third installation space 203 through the installation gap. The third sealing ring 503 ensures the sealing between the second accordion cover 501 and the second sealing plate 502, effectively preventing heat from propagating through this path. The fourth sealing ring 504 ensures the sealing between the second accordion cover 501 and the box body 2. The addition further strengthens the sealing effect between the second accordion cover 501 and the box body 2, making the thermal efficiency of the entire system higher, thereby improving the operating efficiency and safety of the equipment.

[0038] The heat generated by the poor sealing and the heat conduction of the turntable will have a negative impact on the operation of the turntable drive device. Therefore, in one embodiment, the heat dissipation device 6 includes an air inlet pipe 602 and an air outlet pipe 603, and the bottom surface of the box body 2 is provided with an air inlet and an air outlet, one end of the air inlet pipe 602 is connected to the external space, and the other end of the air inlet pipe 602 is connected to the first installation space 201 through the air inlet, one end of the air outlet pipe 603 is connected to the first installation space 201 through the air outlet, and the other end of the air outlet pipe 603 is connected to the external space. Through the coordinated work of the air inlet pipe 602 and the air outlet pipe 603, the air in the external space can enter the first installation space 201 through the air inlet pipe 602, and take away the heat generated during the operation of the equipment. At the same time, the hot air is quickly discharged through the air outlet pipe 603, avoiding the accumulation of heat inside the equipment, thereby effectively preventing the equipment from overheating.

[0039] Preferably, a fan 605 is installed inside the air inlet pipe 602 and the air outlet pipe 603. The fan can accelerate the circulation speed of air in the pipe, thereby effectively improving the heat dissipation effect of the overall heat dissipation system. Through the operation of the fan, air can be sucked in and discharged faster, ensuring that the heat inside the device can be quickly taken away, thereby maintaining the device running at an optimal working temperature.

[0040] Preferably, the heat dissipation device 6 includes a water inlet pipe (equivalent to the above-mentioned air inlet pipe 602), a water outlet pipe (equivalent to the above-mentioned air outlet pipe 602) and a coil 604. The coil 604 is arranged on one side of the turntable drive device, one end of the coil is connected to the water inlet pipe, and the other end of the coil is connected to the water outlet pipe. Cold water enters the first installation space 201 from the water inlet pipe and then flows into the coil. The coil takes away the heat from the surface of the turntable drive device, and the hot water is discharged through the water outlet pipe.

[0041] A 3D printer comprises the heat preservation and cooling device as described in any one of the above items, as well as a nozzle assembly and a turntable assembly, wherein the nozzle assembly comprises a nozzle drive device and a nozzle body, and the turntable assembly comprises a turntable drive device and a turntable body.

[0042] By compressing the heating space, the time required to wait for the cavity temperature to reach the ideal state during the printing process is reduced, thereby improving the overall printing efficiency and ensuring the stability of the printing quality; the cooling device ensures the smooth progress of the entire printing process and reduces equipment downtime caused by excessively high or unstable temperatures; the insulation and cooling device not only optimizes the printing process, but also significantly improves production efficiency and product quality. The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A heat preservation and cooling device, characterized in that: The invention comprises a base (1), a box (2), a hot air blower (3), a turntable heat shield (4), a nozzle heat shield (5) and a heat dissipation device (6), wherein the box (2) is arranged on the base (1), the box (2) has an installation space inside, the nozzle heat shield (5) and the turntable heat shield (4) are both arranged in the installation space, so as to divide the installation space into a first installation space (201) for installing a turntable assembly, a second installation space (202) for heating printing and a third installation space (203) for installing a nozzle assembly, the output end of the hot air blower (3) is connected to the second installation space (202), the hot air blower (3) is used to heat the second installation space (202), the heat dissipation device (6) is connected to the first installation space (201), and the heat dissipation device (6) is used to dissipate heat from the first installation space (201).

2. A heat preservation and cooling device according to claim 1, characterized in that: It also comprises a door panel (7), a first opening being provided on the front of the box body (2), the door panel (7) being used to open or close the first opening, and an observation window (701) being provided on the door panel (7).

3. A heat preservation and cooling device according to claim 1, characterized in that: The turntable heat insulation cover (4) comprises a first accordion cover (401) and a first sealing plate (402), wherein the first sealing plate (402) is used to mount a turntable body in the turntable assembly, the first accordion cover (401) is arranged in a vertical direction, one end of the first accordion cover (401) is fixedly connected to the first sealing plate (402), and the other end of the first accordion cover (401) is fixedly connected to the inner bottom surface of the box body (2), the first accordion cover (401) encloses a first channel, and the first sealing plate (402), the first channel and the box body ( The bottom plate of the box body (2) forms the first installation space (201), the bottom of the box body (2) is provided with a second opening connected to the first installation space (201), so that a turntable drive device in the turntable assembly can be installed in the first installation space (201), and the first sealing plate (402) is provided with a turntable mounting hole, the turntable mounting hole connects the first installation space (201) and the second installation space (202), so that the turntable drive device in the first installation space (201) is connected to the turntable body installed in the second installation space (202).

4. A heat preservation and cooling device according to claim 3, characterized in that: The turntable heat insulation cover (4) further comprises a first sealing ring (403) and a second sealing ring (404); the first sealing ring (403) is arranged between the first accordion cover (401) and the first sealing plate (402); the second sealing ring (404) is arranged between the first accordion cover (401) and the box body (2); the first sealing ring (403) and the second sealing ring (404) are used to prevent hot air in the second installation space (202) from penetrating into the first installation space (201) through the installation gap.

5. The heat preservation and cooling device according to claim 1, characterized in that: The nozzle heat shield (5) comprises a second accordion cover (501) and a second sealing plate (502), the second sealing plate (502) being used to mount a nozzle body in the nozzle assembly, the second accordion cover (501) being arranged in a vertical direction, one end of the second accordion cover (501) being fixedly connected to the second sealing plate (502), the other end of the second accordion cover (501) being fixedly connected to the top surface of the box body (2), the second accordion cover (501) enclosing a second channel, the second sealing plate (502), the second channel and the box body ( The top plate of the housing (2) forms the third installation space (203), the top of the housing (2) is provided with a third opening connected to the third installation space (203), so that the nozzle driving device in the nozzle assembly can be installed in the third installation space (203), and the second sealing plate (502) is provided with a nozzle mounting hole, the nozzle mounting hole connecting the second installation space (202) and the third installation space (203), so that the turntable driving device in the third installation space (203) is connected to the nozzle body installed in the second installation space (202).

6. A heat preservation and cooling device according to claim 5, characterized in that: The second accordion cover (501) is in a cone shape, and the width of the second accordion cover (501) gradually increases from the bottom of the second accordion cover (501) to the top of the second accordion cover (501).

7. A heat preservation and cooling device according to claim 5, characterized in that: The nozzle heat insulation cover (5) further comprises a third sealing ring (503) and a fourth sealing ring (504); the third sealing ring (503) is arranged between the second accordion cover (501) and the second sealing plate (502); the fourth sealing ring (504) is arranged between the second accordion cover (501) and the box body (2); the third sealing ring (503) and the fourth sealing ring (504) are used to prevent hot air in the second installation space (202) from penetrating into the third installation space (203) through the installation gap.

8. The heat preservation and cooling device according to claim 3, characterized in that: The heat dissipation device (6) comprises an air inlet pipe (602) and an air outlet pipe (603); an air inlet and an air outlet are provided on the bottom surface of the box body (2); one end of the air inlet pipe (602) is connected to the external space; the other end of the air inlet pipe (602) is connected to the first installation space (201) through the air inlet; one end of the air outlet pipe (603) is connected to the first installation space (201) through the air outlet pipe (603); and the other end of the air outlet pipe (603) is connected to the external space.

9. A 3D printer, characterized in that: It comprises the heat preservation and cooling device as described in any one of claims 1 to 8, as well as a nozzle assembly and a turntable assembly, wherein the nozzle assembly comprises a nozzle drive device and a nozzle body, and the turntable assembly comprises a turntable drive device and a turntable body.

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