Three-dimensional printer

Abstract

The utility model discloses a three-dimensional printer, relates to the technical field of three-dimensional printing, and mainly aims to simplify the printing process of a model and improve the printing efficiency of the model. According to the main technical scheme, the three-dimensional printer comprises a shell, a printing platform, a printing assembly and a post-processing assembly. The post-processing assembly is arranged in the shell; the printing platform is movably arranged on the shell; the printing assembly is movably arranged in the shell, the printing assembly is used for moving between a first position and a second position relative to the shell, in the first position, the printing assembly is located on a moving path of the printing platform, the printing platform is used for moving to the printing assembly to print a model, and in the second position, the printing assembly is located on a moving path of the printing platform; and at the second position, the printing assembly leaves the moving path of the printing platform, and the printing platform is used for moving to the post-processing assembly, so that the post-processing assembly performs post-processing on the model.

Description

Technical Field

[0001] The utility model relates to the technical field of three-dimensional printing, in particular to a three-dimensional printer. Background Art

[0002] A photocurable 3D printer generally applies light to a photosensitive material through a light source to solidify the liquid photosensitive material into a 3D solid model.

[0003] Currently, after a model is cured in a printer, users typically need to manually place it in post-processing equipment for further processing. This involves placing the model in a light-curing cleaning machine for cleaning and secondary light curing to remove residual resin and fully cure the resin on the surface. This is inconvenient for users and results in low printing efficiency. Utility Model Content

[0004] In view of this, an embodiment of the present invention provides a three-dimensional printer, the main purpose of which is to simplify the operation process of printing models and improve the printing efficiency of models.

[0005] In order to achieve the above-mentioned purpose, the present invention mainly provides the following technical solutions:

[0006] In one aspect, an embodiment of the present invention provides a three-dimensional printer, comprising:

[0007] Housing, printing platform, printing components and post-processing components;

[0008] The post-processing component is disposed in the housing;

[0009] The printing platform is movably disposed in the housing;

[0010] The printing assembly is movably arranged on the shell, and is used to move between a first position and a second position relative to the shell. In the first position, the printing assembly is located in the moving path of the printing platform, and the printing platform can move to the printing assembly to print the model. In the second position, the printing assembly leaves the moving path of the printing platform, and the printing platform is used to move to the post-processing assembly so that the post-processing assembly can post-process the model.

[0011] Furthermore, the printing platform is movably disposed in the housing along a vertical direction; and the printing assembly is movably disposed in the housing along a horizontal direction.

[0012] Further, the post-processing assembly includes a cleaning assembly, and when the printing assembly is in the first position, the cleaning assembly is located below the printing assembly;

[0013] The cleaning assembly includes an outer barrel and an inner barrel disposed within the outer barrel, a receiving space being provided between the inner barrel and the outer barrel, an opening of the inner barrel facing the printing surface of the printing platform, the inner barrel being used to store cleaning liquid, and the receiving space being used to store the cleaning liquid overflowing from the inner barrel;

[0014] An overflow port is provided at the opening of the inner barrel, and the overflow port is communicated with the inner barrel and the accommodating space.

[0015] Furthermore, the cleaning assembly further includes a first driving member, the inner barrel is connected to the accommodating space via the first driving member, and the first driving member is used to draw the cleaning liquid in the accommodating space back to the inner barrel;

[0016] The cleaning assembly further includes a liquid level detection component, which is disposed in the inner barrel and electrically connected to the first driving component.

[0017] Furthermore, the cleaning assembly further includes a cover body and a second driving member connected to the cover body, wherein the second driving member is used to drive the cover body to open or close the opening of the inner barrel and the accommodating space.

[0018] Furthermore, a second opening is provided on the housing at a position corresponding to the cleaning component;

[0019] The outer barrel is connected to the shell in a sliding, rolling or detachable fixed manner, and the sliding direction or rolling direction of the outer barrel and the shell is toward the second opening, and the cleaning assembly can enter or leave the shell through the second opening;

[0020] The outer barrel is provided with a handle, and the handle corresponds to the second opening;

[0021] The housing is provided with a door body, and the door body is used to open or close the second opening.

[0022] Furthermore, the post-processing component also includes a post-curing component. When the printing component is in the first position, the post-curing component is located around the printing component, and the post-curing component is used to emit curing light toward the moving path of the printing platform.

[0023] Furthermore, the post-curing assembly includes a first light-curing light strip, which is arranged on the inner wall of the housing and extends along the circumference of the housing;

[0024] The light emitting end of the first light curing lamp strip is directed toward the moving path of the printing platform.

[0025] Furthermore, the printing assembly is configured to move linearly relative to the housing;

[0026] The post-curing assembly further includes a second light-curing light belt, which is arranged on the side of the printing assembly; the light-emitting end of the second light-curing light belt is directed toward the moving path of the printing platform;

[0027] In the second position, the second light-curing light strip and the first light-curing light strip form a ring.

[0028] Furthermore, the post-processing assembly further includes an air-drying assembly, and when the printing assembly is in the first position, the air-drying assembly is located around the printing assembly, and the air-drying assembly is used to generate airflow toward the moving path of the printing platform;

[0029] Furthermore, the air-drying component includes at least one fan, and the air outlet of the fan is directed toward the moving path of the printing platform;

[0030] If there are multiple fans, the fans are spaced apart along the circumference of the housing;

[0031] The fan is an axial flow fan.

[0032] Furthermore, the printing assembly includes a bracket and a material trough and a light source assembly arranged on the bracket, and the bracket is movably arranged in the housing;

[0033] When the printing assembly is in the first position, the printing surface of the printing platform corresponds to the opening of the material slot, and the curing light emitted by the light source assembly passes through the material slot to be projected into the material slot.

[0034] Furthermore, the light source assembly includes an exposure screen and a light source module provided on the bracket, and the curing light emitted by the light source module is projected into the material tank through the exposure screen; or,

[0035] The light source assembly is an OLED light source; or

[0036] The light source component is a DLP light source.

[0037] Furthermore, the three-dimensional printer further comprises:

[0038] A moving mechanism is provided in the shell and connected to the printing platform, and is used to drive the printing platform to move relative to the shell.

[0039] Furthermore, the three-dimensional printer further comprises: a cover body, the cover body being connected to the housing and being used to open or cover the printing platform and the printing assembly;

[0040] A placement slot is provided at the bottom of the housing. A material storage container for storing photosensitive materials is provided in the placement slot. The material storage container is communicated with the printing assembly to provide the printing assembly with photosensitive materials.

[0041] On the other hand, an embodiment of the present invention provides a control method for a 3D printer, which is applied to the aforementioned 3D printer. The control method includes:

[0042] When the printing assembly is in the first position, in response to a printing instruction, controlling the printing platform to move into the material slot of the printing assembly to print the model;

[0043] When printing is completed, controlling the printing assembly to move to the second position;

[0044] The printing platform is controlled to move to the post-processing component to perform post-processing on the model.

[0045] Furthermore, the post-processing component includes a cleaning component. When the printing component is in the first position, the cleaning component is located below the printing component. The cleaning component includes an outer barrel and an inner barrel arranged in the outer barrel. A accommodating space is provided between the inner barrel and the outer barrel. The opening of the inner barrel is opposite to the printing surface of the printing platform. The inner barrel is used to store cleaning liquid, and the accommodating space is used to store the cleaning liquid overflowing from the inner barrel. An overflow port is provided at the opening of the inner barrel, and the overflow port is connected to the inner barrel and the accommodating space. Controlling the printing platform to move to the post-processing component to perform post-processing on the model includes:

[0046] The printing platform is controlled to move to the cleaning component so that the model enters the inner barrel of the cleaning component to clean the model.

[0047] Furthermore, after controlling the printing platform to move to the cleaning assembly so that the model enters the inner barrel of the cleaning assembly to clean the model, the method further includes:

[0048] The printing platform is controlled to move back and forth along its moving path.

[0049] Furthermore, the cleaning assembly further includes a cover and a second driving member connected to the cover, wherein the second driving member is used to drive the cover to open or close the opening of the inner barrel and the accommodating space; before controlling the printing platform to move to the cleaning assembly so that the model enters the inner barrel of the cleaning assembly to clean the model, the method further includes:

[0050] The second driving member of the cleaning assembly is controlled to drive the cover of the cleaning assembly to open.

[0051] Furthermore, the cleaning assembly further includes a first driving member, the inner barrel is connected to the accommodating space via the first driving member, and the first driving member is used to draw the cleaning liquid in the accommodating space back to the inner barrel; the cleaning assembly further includes a liquid level detection member, the liquid level detection member is disposed in the inner barrel and is electrically connected to the first driving member; after controlling the printing platform to move to the cleaning assembly so that the model enters the inner barrel of the cleaning assembly to clean the model, the method further includes:

[0052] Acquiring liquid level information of the inner barrel detected by a liquid level detection component of the cleaning assembly;

[0053] determining the liquid level of the inner barrel according to the liquid level information;

[0054] When the liquid level in the inner barrel is lower than a preset value, the first driving member of the cleaning assembly is controlled to start.

[0055] Furthermore, the post-processing assembly further includes an air-drying assembly. When the printing assembly is in the first position, the air-drying assembly is located around the printing assembly and is used to generate airflow toward the moving path of the printing platform. The controlling the printing platform to move to the post-processing assembly to perform post-processing on the model further includes:

[0056] Controlling the printing platform to move to the air-drying component of the 3D printer;

[0057] The air-drying component is controlled to operate to air-dry the model.

[0058] Furthermore, after controlling the air-drying component to operate to air-dry the model, the method further includes:

[0059] The printing platform is controlled to move back and forth along its moving path.

[0060] Furthermore, the cleaning assembly further includes a cover and a second driving member connected to the cover, wherein the second driving member is used to drive the cover to open or close the opening of the inner barrel and the accommodating space; before controlling the operation of the air-drying assembly to air-dry the model, the method further includes:

[0061] Controlling the printing platform to remain stationary for a preset time;

[0062] The second driving member of the cleaning assembly is controlled to drive the cover of the cleaning assembly to close.

[0063] Furthermore, the post-processing assembly further includes a post-curing assembly. When the printing assembly is in the first position, the post-curing assembly is located around the printing assembly and is configured to emit curing light toward the moving path of the printing platform. The controlling the printing platform to move to the post-processing assembly to post-process the model further includes:

[0064] The post-curing component of the three-dimensional printer is controlled to operate so as to cure the model.

[0065] Furthermore, after controlling the post-curing component of the 3D printer to operate to cure the model, the method further includes:

[0066] The printing platform is controlled to move back and forth along its moving path.

[0067] By means of the above technical solution, the present invention has at least the following beneficial effects:

[0068] In the 3D printer provided by the present invention, a post-processing assembly is disposed within a housing, and a printing platform and a printing assembly are movably disposed within the housing. Furthermore, the printing assembly is configured to move relative to the housing between a first position and a second position. In the first position, the printing assembly is located in the movement path of the printing platform, allowing the printing platform to move to the printing assembly to print a model. In the second position, the printing assembly is moved out of the movement path of the printing platform to avoid the printing platform, allowing the printing platform to move to the post-processing assembly for post-processing the model. Thus, when a model needs to be printed, the printing assembly can be controlled to move to the first position, allowing the printing platform to move to the printing assembly to print the model. When the model is printed and post-processing of the model is required, such as cleaning and curing the model, the printing assembly can be controlled to move to the second position, allowing the printing platform to move to the post-processing assembly for post-processing the model. In other words, the 3D printer provided by the present invention can both print the model and post-process the model, eliminating the need for additional equipment for post-processing the model. This simplifies the workflow, facilitates operation, and improves printing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 A schematic structural diagram of a printing assembly in a first position in a three-dimensional printer provided by an embodiment of the present utility model;

[0070] Figure 2 A schematic structural diagram of a printing assembly in a second position in a three-dimensional printer provided by an embodiment of the present utility model;

[0071] Figure 3 A schematic cross-sectional view of a three-dimensional printer provided in an embodiment of the present utility model;

[0072] Figure 4 An exploded schematic diagram of a three-dimensional printer provided in an embodiment of the present utility model;

[0073] Figure 5 A schematic structural diagram of a 3D printer provided by an embodiment of the present invention with the cover removed and the printing assembly in a first position;

[0074] Figure 6 A schematic structural diagram of a 3D printer provided by an embodiment of the present invention with the cover removed and the printing assembly in the second position;

[0075] Figure 7 A schematic structural diagram of a cleaning component in a three-dimensional printer provided by an embodiment of the present utility model at a first viewing angle;

[0076] Figure 8 A schematic structural diagram of a cleaning component in a three-dimensional printer provided by an embodiment of the present utility model at a second viewing angle;

[0077] Figure 9 A schematic diagram of the structure of a first light-curing lamp strip provided on a housing in a 3D printer according to an embodiment of the present invention;

[0078] Figure 10 A schematic structural diagram of a printing assembly in a three-dimensional printer provided by an embodiment of the present utility model;

[0079] Figure 11 This is a flow chart of a control method for a three-dimensional printer provided by an embodiment of the present utility model.

[0080] Description of reference numerals:

[0081] 1-housing; 2-printing platform; 3-printing assembly; 31-bracket; 32-material trough; 4-cleaning assembly; 41-outer barrel; 411-handle; 412-mounting slot; 413-slot cover; 42-inner barrel; 421-overflow port; 43-accommodating space; 44-first driving member; 45-cover; 5-first light-curing lamp strip; 6-blower; 7-moving mechanism; 8-cover; 9-material storage container. DETAILED DESCRIPTION

[0082] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention.

[0083] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, an embodiment of the present invention provides a three-dimensional printer, including a shell 1, a printing platform 2, a printing component 3 and a post-processing component; the post-processing component is arranged in the shell 1; the printing platform 2 is movably arranged in the shell 1; the printing component 3 is movably arranged in the shell 1, and the printing component 3 is used to move between a first position and a second position relative to the shell 1. In the first position, the printing component 3 is located in the moving path of the printing platform 2, and the printing platform 2 is used to move to the printing component 3 to print the model. In the second position, the printing component 3 leaves the moving path of the printing platform 2, and the printing platform 2 is used to move to the post-processing component so that the post-processing component can post-process the model.

[0084] In the 3D printer provided by the present invention, a post-processing assembly is disposed within a housing 1, and a printing platform 2 and a printing assembly 3 are each movably disposed within the housing 1. Furthermore, the printing assembly 3 is configured to move relative to the housing 1 between a first position and a second position. In the first position, the printing assembly 3 is located within the movement path of the printing platform 2, allowing the printing platform 2 to move to the printing assembly 3 to print a model. In the second position, the printing assembly 3 is positioned out of the movement path of the printing platform 2, avoiding the printing platform 2, allowing the printing platform 2 to move to the post-processing assembly for post-processing of the model. Thus, when a model needs to be printed, the printing assembly 3 can be controlled to move to the first position, allowing the printing platform 2 to move to the printing assembly 3 to print the model. When the model is printed and post-processing of the model is required, such as cleaning and curing, the printing assembly 3 can be controlled to move to the second position, allowing the printing platform 2 to move to the post-processing assembly for post-processing of the model. In other words, the 3D printer provided by the present invention can both print a model and post-process the model, eliminating the need for additional equipment for post-processing the model. This simplifies the workflow, facilitates operation, and improves printing efficiency.

[0085] In which, when the printing component 3 is movably arranged in the shell 1, the printing component 3 can be located inside the shell 1 when it is in the first position, and when the printing component 3 is in the second position, at least part of the printing component 3 can be located outside the shell 1, thereby reducing the volume of the shell 1 and improving space utilization.

[0086] In some embodiments, see Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The printing platform 2 can be movably arranged in the shell 1 along the vertical direction; the printing component 3 can be movably arranged in the shell 1 along the horizontal direction.

[0087] When the printing assembly 3 is in the first position, the printing platform 2 can move up and down to print the model in the printing assembly 3. When the model is printed, the printing assembly 3 can move to the second position to avoid the printing platform 2. At this time, the printing platform 2 can move down to the post-processing assembly to perform post-processing on the model.

[0088] The printing component 3 moves in the horizontal direction. For example, the printing component 3 can rotate in the horizontal direction, or move in a straight line in the horizontal direction. Alternatively, the printing component 3 can also move in an inclined direction, as long as the printing component 3 can be located in or leave the moving path of the printing platform 2.

[0089] Among them, there can be many ways to implement the movably setting of the printing component 3 on the shell 1. For example, a slide rail can be set on the inner wall of the shell 1, and the extension direction of the slide rail is consistent with the movement direction of the printing component 3. A slider can be set on the printing component 3, so that the printing component 3 can be movably connected to the shell 1 through the slider and the slide rail. Moreover, in order to facilitate the movement and switching of the printing component 3 between the first position and the second position, the three-dimensional printer can also include a driving member connected to the printing component 3, such as a motor, an electric push rod, etc., for driving the printing component 3 to move between the first position and the second position. Specifically, the motor can drive the printing component 3 to move between the first position and the second position through a screw nut sleeve, or through a transmission belt. It can be understood that the printing component 3 can be moved outside the first position and the second position if necessary, as long as the functions of the present application can be achieved.

[0090] In some embodiments, see Figure 3 、 Figure 4 and Figure 7 The post-processing component may include a cleaning component 4. When the printing component 3 is in the first position, the cleaning component 4 is located below the printing component 3. The cleaning component 4 may include an outer barrel 41 and an inner barrel 42 arranged in the outer barrel 41. An accommodating space 43 is provided between the inner barrel 42 and the outer barrel 41. The opening of the inner barrel 42 is opposite to the printing surface of the printing platform 2. The inner barrel 42 is used to store cleaning liquid, such as alcohol, and the accommodating space 43 is used to store the cleaning liquid overflowing from the inner barrel 42.

[0091] As previously mentioned, when the model is printed, the printing assembly 3 can be moved to the second position to clear the movement path of the printing platform 2, allowing the printing platform 2 to move downward into the inner barrel 42 of the cleaning assembly 4 to clean the model. Moreover, to improve the cleaning effect of the model, the printing platform 2 can reciprocate up and down during the cleaning process.

[0092] If the level of the cleaning liquid in the inner barrel 42 is high, the cleaning liquid in the inner barrel 42 may easily overflow when the printing platform 2 with the model is immersed in the cleaning liquid, or when the printing platform 2 reciprocates up and down. In the above embodiment, by providing the outer barrel 41 outside the inner barrel 42 and providing a receiving space 43 between the inner barrel 42 and the outer barrel 41, the cleaning liquid overflowing from the inner barrel 42 can flow directly into the receiving space 43 and be stored therein without flowing to other locations, thereby preventing contamination of other locations in the equipment.

[0093] In order to facilitate the overflow of the cleaning liquid in the inner barrel 42 and avoid splashing of liquid droplets, in some embodiments, see Figure 7 An overflow port 421 may be provided at the opening of the inner barrel 42 , and the overflow port 421 is connected to the inner barrel 42 and the accommodating space 43 , so that the cleaning liquid in the inner barrel 42 can flow into the accommodating space 43 through the overflow port 421 .

[0094] It is understood that the lowest position of the overflow port 421 can be above the preset liquid level in the inner barrel 42 to ensure that there is sufficient cleaning liquid in the cleaning assembly 4, thereby ensuring the cleaning effect of the cleaning assembly 4 on the model. The preset liquid level is the liquid level of the cleaning liquid in the inner barrel 42 that can meet the cleaning effect of the model.

[0095] Furthermore, in the above embodiment, the cleaning assembly 4 is located below the printing assembly 3. It is understood that the cleaning assembly 4 can also be located at the bottom of the 3D printer. Since the cleaning assembly 4 typically contains cleaning liquid, placing the cleaning assembly 4 with liquid at the bottom can achieve dry and wet separation of the 3D printer, preventing the liquid from affecting other components. Furthermore, the heavier part being located at the bottom lowers the center of gravity of the 3D printer, making it less likely to tip over.

[0096] In some embodiments, see Figure 7 The cleaning assembly 4 may further include a first driving member 44, through which the inner barrel 42 communicates with the accommodating space 43. The first driving member 44 is used to pump the cleaning liquid in the accommodating space 43 back into the inner barrel 42. Specifically, the first driving member 44 may be a pump. It will be understood that when the inner barrel 42 communicates with the accommodating space 43 via the first driving member 44, a liquid pipe connection is also required.

[0097] When the liquid level in the inner tub 42 is low, the first driving member 44 can be controlled to start, so as to pump the cleaning liquid stored in the accommodating space 43 back into the inner tub 42, thereby recovering the cleaning liquid and ensuring that a certain liquid level is maintained in the inner tub 42. Of course, if the liquid level in the inner tub 42 is high, the first driving member 44 can also be used to pump excess cleaning liquid in the inner tub 42 into the accommodating space 43.

[0098] Among them, see Figure 7The bottom sidewall of the outer barrel 41 may be provided with a mounting groove 412, and the first driving member 44 may be disposed in the mounting groove 412. At the same time, in order to protect the first driving member 44, the mounting groove 412 is further provided with a groove cover 413, which is buckled on the mounting groove 412 to cover the first driving member 44.

[0099] In some embodiments, the cleaning assembly 4 may further include a liquid level detection member disposed in the inner barrel 42 and electrically connected to the first driving member 44. Specifically, the liquid level detection member may be any existing or future designed component for detecting liquid level, such as a liquid level gauge.

[0100] Among them, the liquid level detection side member can be used to detect the liquid level of the cleaning liquid in the inner barrel 42, and the liquid level detection member is electrically connected to the first drive member 44, so that when the liquid level information detected by the liquid level detection member is lower than the preset value, the first drive member 44 can be started to draw the cleaning liquid in the accommodating space 43 back to the inner barrel 42. When the liquid level of the cleaning liquid in the inner barrel 42 is greater than or equal to the preset value, the first drive member 44 can stop drawing the cleaning liquid in the accommodating space 43 back to the inner barrel 42, which is more convenient to use.

[0101] In some embodiments, see Figure 7 The cleaning assembly 4 may further include a cover 45 and a second driving member connected to the cover 45. The second driving member is used to drive the cover 45 to open or close the opening of the inner tub 42 and the accommodating space 43. Specifically, the cover 45 can be rotatably connected to the outer tub 41 and rotated to open or close the opening of the inner tub 42 and the accommodating space 43. The second driving member may be a steering gear or a motor. The second driving member can directly or indirectly drive the cover 45.

[0102] In the above embodiment, by providing a cover 45, the cover 45 can open or close the opening of the inner barrel 42 and the accommodating space 43. Before cleaning the model, the second driving member can be controlled to drive the cover 45 to open the opening of the inner barrel 42 and the accommodating space 43, so that the printing platform 2 with the model is immersed in the cleaning liquid in the inner barrel 42. After the model cleaning is completed, that is, after the printing platform 2 with the model is raised, the second driving member can be controlled to drive the cover 45 to close the opening of the inner barrel 42 and the accommodating space 43. This prevents dust and other foreign matter that falls from above the cleaning component 4 from falling into the inner barrel 42 and the accommodating space 43 and contaminating the cleaning liquid. At the same time, it can also better achieve dry and wet separation of the equipment. When the cover 45 is closed, the cleaning liquid is sealed in the inner barrel 42, improving safety.

[0103] In some embodiments, see Figure 1 、 Figure 2 and Figure 4A second opening is formed on the housing 1 at a position corresponding to the cleaning assembly 4; the outer barrel 41 is slidably connected, rollably connected, or detachably fixedly connected to the housing 1, and the cleaning assembly 4 can enter or exit the housing 1 through the second opening. If the outer barrel 41 is slidably connected or rollably connected to the housing 1, the sliding direction or rolling direction of the outer barrel 41 and the housing 1 can be toward the second opening.

[0104] Because the outer barrel 41 is slidably or rollably connected to the housing 1, and the sliding or rolling direction is toward the second opening of the housing 1, the cleaning assembly 4 can smoothly enter or exit the housing 1 through the second opening. When the cleaning liquid needs to be replaced or replenished, the cleaning assembly 4 can be pulled out of the housing 1 through the second opening. After the replacement or replenishment is completed, the cleaning assembly 4 can be pushed into the housing 1 through the second opening, making the operation more convenient.

[0105] The outer barrel 41 and the housing 1 can be detachably fixedly connected in various ways. For example, the outer barrel 41 and the housing 1 can be connected by screws or other fasteners. When the cleaning fluid needs to be replaced or replenished, the screws or other fasteners can be loosened or removed, and the cleaning assembly 4 can be removed from the housing 1 through the second opening. After replacement or replenishment, the cleaning assembly 4 can be placed into the housing 1 through the second opening and the screws or other fasteners can be tightened.

[0106] There are various ways of sliding connection between the outer barrel 41 and the housing 1. For example, a slide rail may be provided on the inner wall of the housing 1, and a slider may be provided on the outer wall of the outer barrel 41. The slide rail and the slider are slidably connected to achieve a sliding connection between the cleaning component 4 and the housing 1. Alternatively, rollers may be provided on the outer wall of the outer barrel 41, and a track may be provided on the inner wall of the housing 1. The rollers and the track are rollingly connected to achieve a rolling connection between the cleaning component 4 and the housing 1. It is understood that the positions of the slide rail and the slider can be interchanged, or the positions of the roller and the track can be interchanged without affecting operation and use.

[0107] In order to facilitate the pulling out or pushing of the cleaning assembly 4 into the housing 1, in some embodiments, see Figure 4 and Figure 8 A handle 411 is provided on the outer barrel 41 , and the handle 411 corresponds to the second opening, so that the user can pull out or push in the cleaning component 4 by holding the handle 411 .

[0108] In order to protect the cleaning assembly 4, in some embodiments, a door 11 can be provided on the housing 1, and the door 11 is used to open or close the second opening. Specifically, the door 11 can be rotatably connected to the housing 1 and is used to rotate relative to the housing 1 to open or close the second opening.

[0109] In some embodiments, the post-processing component may further include a post-curing component. When the printing component 3 is in the first position, the post-curing component is located around the printing component 3 and is used to emit curing light toward the moving path of the printing platform 2.

[0110] After the model is cleaned, the printing platform 2 can be moved upward to the post-curing component, which can emit curing light to illuminate the model on the printing platform 2, thereby achieving secondary curing of the model.

[0111] In some embodiments, see Figure 4 、 Figure 6 and Figure 9 The post-curing component may include a first light-curing light belt 5, which is arranged on the inner wall of the shell 1 and extends along the circumference of the shell 1; the light output end of the first light-curing light belt 5 is toward the moving path of the printing platform 2.

[0112] After the model is cleaned, the print platform 2 moves upward to the position of the first light-curing light strip 5, which then emits curing light to illuminate the model for secondary curing. Furthermore, using a light strip extending circumferentially along the housing 1 to cure the model not only improves the uniformity of the curing light emitted by the post-curing assembly, thereby enhancing the curing effect, but also facilitates the installation of the post-curing assembly on the housing 1. Specifically, during the curing process, the print platform 2 can reciprocate up and down to further improve the uniformity of the curing light, thereby further enhancing the curing effect.

[0113] The first light-curing lamp strip 5 can be arranged as a whole extending along the circumference of the shell 1, or can be arranged in multiple sections extending along the circumference of the shell 1, as long as the light output end of the lamp strip faces the moving path of the printing platform 2 to illuminate the model.

[0114] In some embodiments, the printing component 3 is used to move in a straight line relative to the shell 1; the post-curing component can also include a second light-curing light belt, which is arranged on the side of the printing component 3; the light-emitting end of the second light-curing light belt is toward the moving path of the printing platform 2; when the printing component is in the second position, the second light-curing light belt and the first light-curing light belt 5 form a ring.

[0115] When the model is cleaned, the printing assembly 3 is still in the second position. At this time, the second light-curing light belt and the first light-curing light belt 5 form a ring, and the printing platform 2 moves upward to the position of the post-curing assembly. The model on the printing platform 2 can be surrounded by the second light-curing light belt and the first light-curing light. The first light-curing light belt 5 and the second light-curing light belt can simultaneously emit curing light to irradiate the model, further improving the uniformity of the curing light emitted by the post-curing assembly to the model, thereby further improving the curing effect of the model.

[0116] It is understandable that when the printing assembly 3 moves to the first position, the first light-curing light belt 5 and the second light-curing light belt can be staggered or arranged opposite to each other with a certain gap between them to avoid being squeezed and damaged.

[0117] In some embodiments, the post-processing component may further include an air-drying component. When the printing component 3 is in the first position, the air-drying component is located around the printing component 3 and is used to generate airflow toward the moving path of the printing platform 2.

[0118] After the model is cleaned, the printing platform 2 can be moved upward to the air-drying assembly, which can generate airflow to air-dry the cleaned model. After the air-drying is completed, the post-curing assembly can be controlled to operate to perform light curing on the air-dried model, or to perform secondary curing and air drying simultaneously, or to perform secondary curing first and then air drying.

[0119] In some embodiments, see Figure 4 The air-drying assembly may include at least one fan 6, with the air outlet of the fan 6 facing the moving path of the printing platform 2, so that the fan 6 can blow air toward the model on the printing platform 2. Moreover, if there are multiple fans 6, the multiple fans 6 can be arranged at intervals along the circumference of the housing 1, for example, symmetrically arranged on opposite sides of the housing 1, so that the multiple fans 6 blow air in the circumferential direction of the model, thereby improving the drying speed and drying effect of the model.

[0120] Moreover, when there is sufficient space between the printing component 3 in the first position and the shell 1, a fan 6 can also be set on the side of the printing component 3, so that when the printing component 3 is in the second position, the fan 6 on the printing component 3 and the fan 6 set on the inner wall of the shell 1 can surround the model and blow air to the model together, thereby further improving the drying speed and drying effect of the model.

[0121] In some embodiments, the fan 6 may be an axial flow fan to further improve the drying speed and drying effect of the model.

[0122] In some embodiments, see Figure 3 、 Figure 5 、 Figure 6 and Figure 10 The printing component 3 may include a bracket 31, a material trough 32 and a light source component arranged on the bracket 31, and the bracket 31 is movably arranged on the shell 1; when the printing component 3 is in the first position, the printing surface of the printing platform 2 corresponds to the opening of the material trough 32, and the curing light emitted by the light source component passes through the material trough 32 to be projected into the material trough 32.

[0123] The material tank 32 may contain a liquid photosensitive material, such as a photosensitive resin. When a model needs to be printed, the printing assembly 3 may be controlled to move to a first position. The printing platform 2 may then be lowered to a set position within the material tank 32. The light source assembly may emit a curing light that passes through the material tank 32 and is projected into the material tank 32, thereby curing one side of the model in the desired shape onto the printing platform, or onto an already cured model. The printing platform 2 then moves up and down, ultimately printing the entire model.

[0124] In some embodiments, the light source assembly may include an exposure screen and a light source module arranged on the bracket 31, and the curing light emitted by the light source module is projected into the material tank 32 through the exposure screen; or, the light source assembly may be an OLED light source; or the light source assembly may be a DLP light source.

[0125] The light source assembly may include an exposure screen and a light source module. The light source module may be configured to emit light, thereby controlling the area to be exposed by displaying a pattern on the exposure screen. Alternatively, the light source assembly may be a self-luminous display device. In this case, no exposure screen is required, and the light source assembly itself may display a pattern to control the area to be exposed. Specifically, the light source assembly may be an OLED (Organic Light-Emitting Diode) light source or a DLP (Digital Light Processing) light source.

[0126] In some embodiments, see Figure 3 and Figure 4 The 3D printer may further include a moving mechanism 7, which is disposed in the housing 1 and connected to the printing platform 2, and is used to drive the printing platform 2 to move relative to the housing 1. Specifically, the moving mechanism 7 may be a lead screw transmission mechanism, and its extension direction is the vertical direction.

[0127] In some embodiments, see Figure 1 and Figure 5 The three-dimensional printer may further include a cover 8 connected to the housing 1 for opening or covering the printing platform 2 and the printing assembly 3 .

[0128] The cover 8 can be rotatably connected to the housing 1 and is used to rotate relative to the housing 1 to open or cover the printing platform 2 and the printing assembly 3. Specifically, when the 3D printer is in operation, for example, when the printing assembly 3 is in the first position and the printing platform 2 is lowered into the material trough 32 to print the model, or when the printing assembly 3 is in the second position and the printing platform 2 is raised to the post-curing assembly to perform a secondary curing operation on the model, the cover 8 can be placed outside the printing platform 2 and the printing assembly 3 to prevent the curing light from being emitted outward and causing harm to the human body, and to prevent external light of a specific wavelength from irradiating the material feed trough 32; when the 3D printer is not in operation, such as when performing maintenance, the cover 8 can be opened. It is understood that the cover 8 can also be slidably connected to the housing 1.

[0129] In some embodiments, see Figure 1 The bottom of the housing 1 may be provided with a placement slot, in which a storage container 9 for storing photosensitive material is provided. The storage container 9 may be in communication with the printing assembly 3 to supply the photosensitive material to the printing assembly 3. When the photosensitive material in the material slot 32 of the printing assembly 3 is insufficient, the storage container 9 may refill the material slot 32.

[0130] The three-dimensional printer provided by the embodiment of the present utility model integrates the four functions of printing, cleaning, air drying and curing in one, and these four functions can all be completed in the three-dimensional printer.

[0131] The present invention also provides a control method for a 3D printer, which is applied to the aforementioned 3D printer. The control method may include:

[0132] 101. When the printing component is in the first position, in response to a printing instruction, control the printing platform to move into the material slot of the printing component to print the model.

[0133] Among them, when the printing component is in the first position, the printing surface of the printing platform corresponds to the opening of the material trough. In response to the printing instruction, the printing platform can move downward into the material trough. At the same time, the curing light emitted by the light source module of the printing component is projected into the material trough through the exposure screen, thereby realizing the printing operation of the model.

[0134] 102. When printing is completed, control the printing component to move to the second position.

[0135] When the model is printed, the printing platform and the model are away from the trough. At this time, the printing component can be controlled to move from the first position to the second position so that the printing component leaves the moving path of the printing platform, thereby avoiding the printing platform and allowing the printing platform to move along its moving path.

[0136] 103. Control the printing platform to move to the post-processing component to post-process the model.

[0137] The post-processing of the model may include cleaning the model and performing secondary light curing, etc. Since the printing assembly is in the second position, the printing platform can be moved to the post-processing assembly to perform operations such as cleaning and secondary light curing on the model.

[0138] The control method for a 3D printer provided by an embodiment of the present invention controls, when the printing assembly is in a first position, the printing platform to move into the material trough of the printing assembly in response to a print instruction to print the model; when printing is completed, the printing assembly is controlled to move to a second position to avoid the printing platform; and then the printing platform is controlled to move to the post-processing assembly to perform post-processing on the model. In other words, the control method for a 3D printer provided by an embodiment of the present invention can both print the model and perform post-processing on the model, eliminating the need for other equipment for post-processing the model. This simplifies the workflow, facilitates operation, and improves printing efficiency.

[0139] In the embodiment of the present invention, step 103 may specifically include: controlling the printing platform to move to the cleaning component so that the model enters the inner barrel of the cleaning component to clean the model.

[0140] Since the printing assembly is in the second position, the printing platform can be controlled to move downward to the cleaning assembly to immerse the model on the printing platform in the cleaning liquid in the inner barrel, thereby cleaning the model.

[0141] In an embodiment of the present invention, after controlling the printing platform to move to the cleaning component so that the model enters the inner barrel of the cleaning component to clean the model, the control method may further include: controlling the printing platform to move back and forth along its moving path.

[0142] That is to say, after the model is immersed in the cleaning liquid in the inner barrel, the printing platform can move up and down to improve the cleaning speed and cleaning effect of the model.

[0143] In an embodiment of the utility model, before controlling the printing platform to move to the cleaning assembly so that the model enters the inner barrel of the cleaning assembly to clean the model, the control method may further include: controlling the second driving member of the cleaning assembly to drive the cover of the cleaning assembly to open.

[0144] After the printing assembly is controlled to move to the second position, the cover of the cleaning assembly can be opened so that when the printing platform moves downward to the cleaning assembly, the model can be immersed in the cleaning liquid in the inner barrel of the cleaning assembly. Correspondingly, after the model is cleaned, the second driving member can be controlled to drive the cover to close.

[0145] In an embodiment of the utility model, after controlling the printing platform to move to the cleaning component so that the model enters the inner barrel of the cleaning component to clean the model, the control method may further include: obtaining liquid level information of the inner barrel detected by the liquid level detection component of the cleaning component; determining the liquid level of the inner barrel based on the liquid level information; and controlling the first driving component of the cleaning component to start when the liquid level of the inner barrel is lower than a preset value.

[0146] If the cleaning liquid level in the inner barrel is high, when the printing platform carrying the model is immersed in the cleaning liquid, and when the printing platform reciprocates up and down, the cleaning liquid in the inner barrel is likely to overflow from the inner barrel into the accommodating space and be stored in the accommodating space. When the liquid level value of the inner barrel detected by the level detection member is less than a preset value, the first driving member can be controlled to start to pump the cleaning liquid stored in the accommodating space back into the inner barrel, thereby realizing the recovery of the cleaning liquid. When the liquid level in the inner barrel reaches the preset value, the first driving member can be controlled to stop, thereby ensuring that the inner barrel maintains a certain liquid level to meet the cleaning requirements of the model.

[0147] In an embodiment of the present invention, step 103 may further specifically include: controlling the printing platform to move to an air-drying component of the 3D printer; and controlling the air-drying component to operate to air-dry the model.

[0148] After the model is cleaned, it can be air-dried using the air-drying assembly before being cured, thereby improving the curing effect. Specifically, after the model is cleaned, the printing platform can be controlled to move the model upward to the air-drying assembly, and the air-drying assembly's fan can be activated to generate airflow toward the model, thereby drying the model. After the fan has run for a certain period of time, the model is completely air-dried and can be controlled to stop.

[0149] In an embodiment of the present invention, after controlling the air-drying component to operate to air-dry the model, the control method may further include: controlling the printing platform to move back and forth along its moving path.

[0150] That is to say, while the fan generates airflow and blows it toward the model, the printing platform can move back and forth up and down to improve the drying speed and drying effect of the model.

[0151] In an embodiment of the present invention, before controlling the air-drying component to operate and air-dry the component, the control method may further include: controlling the printing platform to stand still for a preset time; and controlling the second driving member of the cleaning component to drive the cover of the cleaning component to close.

[0152] When the model cleaning is completed, after the printing platform moves upward to the air-drying component, the air-drying component can be started for air-drying operation without starting it first. Instead, the printing platform can be controlled to remain stationary so that the cleaning liquid attached to the model drips into the inner barrel of the cleaning component. After a preset time, when the cleaning liquid attached to the model has basically dripped, the second driving member is controlled to drive the cover of the cleaning component to close. At this time, the fan of the air-drying component is started again to air-dry the model. Such operation can further improve the air-drying speed and drying effect of the air-drying component on the model.

[0153] In the embodiment of the present invention, step 103 may further specifically include: controlling the post-curing component of the 3D printer to operate to solidify the model.

[0154] When the model is completely air-dried, the first light-curing light belt and the second light-curing light belt of the post-curing assembly can be controlled to light up to cure the model.

[0155] It is understandable that after the model is air-dried, the post-curing component can be controlled to operate to achieve secondary curing of the air-dried model; alternatively, the model can be secondary cured and air-dried at the same time; alternatively, the model can be secondary cured first and then air-dried.

[0156] In an embodiment of the present invention, after controlling the post-curing assembly of the 3D printer to operate to cure the model, the control method may further include controlling the printing platform to reciprocate along its movement path. Specifically, while the first and second curing light strips of the post-curing assembly emit curing light and illuminate the model, the printing platform may reciprocate up and down, thereby improving the curing efficiency and quality of the model.

[0157] Reference numeral 1. A three-dimensional printer comprising:

[0158] Shell 1, printing platform 2, printing component 3 and post-processing component;

[0159] The post-processing component is arranged in the housing 1;

[0160] The printing platform 2 is movably disposed in the housing 1;

[0161] The printing component 3 is movably arranged on the shell 1, and the printing component 3 is used to move between a first position and a second position relative to the shell 1. In the first position, the printing component 3 is located in the moving path of the printing platform 2, and the printing platform 2 is used to move to the printing component 3 to print the model. In the second position, the printing component 3 leaves the moving path of the printing platform 2, and the printing platform 2 is used to move to the post-processing component so that the post-processing component can post-process the model.

[0162] Label 2, based on the 3D printer of Label 1,

[0163] The printing platform 2 is movably disposed in the housing 1 along a vertical direction; the printing component 3 is movably disposed in the housing 1 along a horizontal direction.

[0164] No. 3, based on the 3D printer based on No. 1,

[0165] The post-processing assembly includes a cleaning assembly 4. When the printing assembly 3 is in the first position, the cleaning assembly 4 is located below the printing assembly 3.

[0166] The cleaning assembly 4 includes an outer barrel 41 and an inner barrel 42 disposed within the outer barrel 41. A receiving space 43 is provided between the inner barrel 42 and the outer barrel 41. The opening of the inner barrel 42 faces the printing surface of the printing platform 2. The inner barrel 42 is used to store cleaning liquid, and the receiving space 43 is used to store cleaning liquid overflowing from the inner barrel 42.

[0167] An overflow port 421 is defined at the opening of the inner tub 42 . The overflow port 421 communicates with the inner tub 42 and the accommodating space 43 .

[0168] Label 4, based on the 3D printer of label 3,

[0169] The cleaning assembly 4 further includes a first driving member 44 , through which the inner barrel 42 is connected to the accommodating space 43 , and the first driving member 44 is used to pump the cleaning liquid in the accommodating space 43 back to the inner barrel 42 ;

[0170] The cleaning assembly 4 further includes a liquid level detection component, which is disposed in the inner barrel 42 and electrically connected to the first driving component 44 .

[0171] Label 5, based on the 3D printer of label 3,

[0172] The cleaning assembly 4 further includes a cover 45 and a second driving member connected to the cover 45 . The second driving member is used to drive the cover 45 to open or close the opening of the inner barrel 42 and the accommodating space 43 .

[0173] Label 6, a three-dimensional printer based on label 3,

[0174] A second opening is provided on the housing 1 at a position corresponding to the cleaning component 4;

[0175] The outer barrel 41 is connected to the housing 1 by sliding, rolling or detachable fixed connection, and the cleaning component 4 can enter or leave the housing 1 through the second opening;

[0176] The outer barrel 41 is provided with a handle 411, and the handle 411 corresponds to the second opening;

[0177] The housing 1 is provided with a door 11 , which is used to open or close the second opening.

[0178] No. 7, a 3D printer based on No. 1,

[0179] The post-processing assembly further includes a post-curing assembly. When the printing assembly 3 is in the first position, the post-curing assembly is located around the printing assembly 3 and is used to emit curing light toward the moving path of the printing platform 2.

[0180] Reference number 8, a three-dimensional printer based on reference number 7,

[0181] The post-curing assembly includes a first light-curing light strip 5, which is arranged on the inner wall of the housing 1 and extends along the circumference of the housing 1;

[0182] The light emitting end of the first light curing lamp belt 5 is directed toward the moving path of the printing platform 2 .

[0183] Reference number 9, a three-dimensional printer based on reference number 8,

[0184] The printing assembly 3 is used to move linearly relative to the housing 1;

[0185] The post-curing assembly further includes a second light-curing lamp belt, which is arranged on the side of the printing assembly 3; the light-emitting end of the second light-curing lamp belt is directed toward the moving path of the printing platform 2;

[0186] When the printing assembly is in the second position, the second light-curing light belt and the first light-curing light belt 5 form a ring.

[0187] Reference number 10, a three-dimensional printer based on reference number 1,

[0188] The post-processing component also includes an air-drying component. When the printing component 3 is in the first position, the air-drying component is located around the printing component 3 and is used to generate airflow toward the moving path of the printing platform 2.

[0189] Reference number 11, a three-dimensional printer based on reference number 10,

[0190] The air drying component includes at least one fan 6, the air outlet end of the fan 6 is directed toward the moving path of the printing platform 2;

[0191] If there are multiple fans 6, the fans 6 are spaced apart along the circumference of the housing 1;

[0192] The fan 6 is an axial flow fan.

[0193] Reference number 12, a three-dimensional printer based on reference number 1,

[0194] The printing assembly 3 includes a bracket 31, a material trough 32 and a light source assembly arranged on the bracket 31. The bracket 31 is movably arranged on the housing 1.

[0195] When the printing assembly 3 is in the first position, the printing surface of the printing platform 2 corresponds to the opening of the material slot 32 , and the curing light emitted by the light source assembly passes through the material slot 32 to be projected into the material slot 32 .

[0196] Reference numeral 13, a 3D printer according to reference numeral 12, wherein the light source assembly comprises an exposure screen and a light source module disposed on a bracket, wherein curing light emitted by the light source module is projected into the material tank 32 through the exposure screen; or

[0197] The light source component is an OLED light source; or

[0198] The light source component is a DLP light source.

[0199] Reference numeral 14. The three-dimensional printer according to reference numeral 1, further comprising:

[0200] The moving mechanism 7 is disposed in the housing 1 and connected to the printing platform 2 . The moving mechanism 7 is used to drive the printing platform 2 to move relative to the housing 1 .

[0201] Reference numeral 15. The 3D printer according to reference numeral 1, further comprising:

[0202] The cover 8 is connected to the housing 1 and is used to open or cover the printing platform 2 and the printing assembly 3;

[0203] A placement slot is provided at the bottom of the housing 1 , and a material storage container 9 for storing photosensitive materials is provided in the placement slot. The material storage container 9 is communicated with the printing assembly 3 to provide the printing assembly 3 with photosensitive materials.

[0204] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A three-dimensional printer, characterized in that: include: Housing, printing platform, printing components and post-processing components; The post-processing component is disposed in the housing; The printing platform is movably disposed in the housing; The printing assembly is movably arranged on the shell, and is used to move between a first position and a second position relative to the shell. In the first position, the printing assembly is located in the moving path of the printing platform, and the printing platform is used to move to the printing assembly to print the model. In the second position, the printing assembly leaves the moving path of the printing platform, and the printing platform is used to move to the post-processing assembly so that the post-processing assembly can post-process the model.

2. The three-dimensional printer according to claim 1, wherein: The printing platform is movably arranged in the shell along the vertical direction; the printing component is movably arranged in the shell along the horizontal direction.

3. The three-dimensional printer according to claim 1, wherein: The post-processing assembly includes a cleaning assembly, and when the printing assembly is in the first position, the cleaning assembly is located below the printing assembly; The cleaning assembly includes an outer barrel and an inner barrel disposed within the outer barrel, a receiving space being provided between the inner barrel and the outer barrel, an opening of the inner barrel facing the printing surface of the printing platform, the inner barrel being used to store cleaning liquid, and the receiving space being used to store the cleaning liquid overflowing from the inner barrel; An overflow port is provided at the opening of the inner barrel, and the overflow port is communicated with the inner barrel and the accommodating space.

4. The three-dimensional printer according to claim 3, characterized in that: The cleaning assembly further includes a first driving member, the inner barrel is connected to the accommodating space via the first driving member, and the first driving member is used to draw the cleaning liquid in the accommodating space back to the inner barrel; The cleaning assembly further includes a liquid level detection component, which is disposed in the inner barrel and electrically connected to the first driving component.

5. The three-dimensional printer according to claim 3, characterized in that: The cleaning assembly further includes a cover body and a second driving member connected to the cover body, wherein the second driving member is used to drive the cover body to open or close the opening of the inner barrel and the accommodating space.

6. The three-dimensional printer according to claim 3, characterized in that: A second opening is provided on the housing at a position corresponding to the cleaning component; The outer barrel is connected to the shell in a sliding, rolling or detachable fixed manner, and the cleaning component can enter or leave the shell through the second opening; The outer barrel is provided with a handle, and the handle corresponds to the second opening; The housing is provided with a door body, and the door body is used to open or close the second opening.

7. The three-dimensional printer according to claim 1, wherein: The post-processing assembly further includes a post-curing assembly. When the printing assembly is in the first position, the post-curing assembly is located around the printing assembly and is configured to emit curing light toward a moving path of the printing platform.

8. The three-dimensional printer according to claim 7, characterized in that: The post-curing assembly includes a first light-curing light strip, which is arranged on the inner wall of the housing and extends along the circumference of the housing; The light emitting end of the first light curing lamp strip is directed toward the moving path of the printing platform.

9. The three-dimensional printer according to claim 8, characterized in that: The printing assembly is configured to move linearly relative to the housing; The post-curing assembly further includes a second light-curing light belt, which is arranged on the side of the printing assembly; the light-emitting end of the second light-curing light belt is directed toward the moving path of the printing platform; When the printing assembly is in the second position, the second light-curing light belt and the first light-curing light belt form a ring.

10. The three-dimensional printer according to claim 1, wherein: The post-processing component further includes an air-drying component. When the printing component is in the first position, the air-drying component is located around the printing component and is used to generate airflow toward the moving path of the printing platform.

11. The three-dimensional printer according to claim 10, wherein: The air-drying component includes at least one fan, wherein the air outlet of the fan is directed toward the moving path of the printing platform; If there are multiple fans, the fans are spaced apart along the circumference of the housing; The fan is an axial flow fan.

12. The three-dimensional printer according to claim 2, characterized in that: The printing assembly includes a bracket, a material trough and a light source assembly arranged on the bracket, and the bracket is movably arranged on the housing; When the printing assembly is in the first position, the printing surface of the printing platform corresponds to the opening of the material slot, and the curing light emitted by the light source assembly passes through the material slot to be projected into the material slot.

13. The three-dimensional printer according to claim 12, wherein: The light source assembly includes an exposure screen and a light source module arranged on the bracket, and the curing light emitted by the light source module is projected into the material tank through the exposure screen; or, The light source assembly is an OLED light source; or, The light source component is a DLP light source.

14. The three-dimensional printer according to claim 1, wherein: Also includes: A moving mechanism is provided in the shell and connected to the printing platform, and is used to drive the printing platform to move relative to the shell.

15. The three-dimensional printer according to claim 1, wherein: Also includes: a cover body connected to the housing and used to open or cover the printing platform and the printing assembly; A placement slot is provided at the bottom of the housing. A material storage container for storing photosensitive materials is provided in the placement slot. The material storage container is communicated with the printing assembly to provide the printing assembly with photosensitive materials.

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