3D printer

Abstract

The utility model provides a 3D printer, and relates to the field of 3D printing. The 3D printer comprises a supporting piece provided with a light transmitting hole, a containing groove formed in one side of the supporting piece and opposite to the light transmitting hole, and a 3D printer lamp panel arranged on the other side of the supporting piece and opposite to the light transmitting hole. According to the 3D printer, through cooperation of the containing groove and the 3D printer lamp panel, the printing function of the 3D printer can be achieved. The scheme that the lamp panel of the 3D printer is used as a backlight source and a mask is adopted, and the size of the lamp panel of the 3D printer is controlled in the mode that a plurality of lamp panel assemblies are spliced in a modularized mode, so that larger-size printing is achieved.

Description

[0001] This application is a divisional application of the Chinese utility model patent application filed on September 8, 2023, with application number 202322467775.7 and invention name “3D Printer”. Technical Field

[0002] The present application relates to the field of 3D (three-dimensional) printing, and in particular to a 3D printer. Background Art

[0003] In a 3D printer, the trough is a component that stores the printing resin. The LED lamp serves as a backlight source, and a liquid crystal display panel is formed on the backlight source. The light source of the LED lamp is irradiated on the printing resin in the trough after being pattern-defined by the liquid crystal display panel as a mask, so that the printing resin is solidified and formed, and a 3D object is printed. However, existing 3D printers are limited by the liquid crystal display panel and cannot print larger sizes. Utility Model Content

[0004] A technical solution adopted in the present application is: a 3D printer, comprising: a support member, provided with a light-transmitting hole passing through the support member; a support member, provided with a light-transmitting hole passing through the support member; and a receiving groove, arranged on one side of the support member, opposite to the light-transmitting hole, the receiving groove comprising a groove frame and a light-transmitting film, the groove frame being arranged on the support member, the light-transmitting film being arranged on a side of the groove frame close to the support member and covering the light-transmitting hole; a 3D printer light board, arranged on the other side of the support member, opposite to the light-transmitting hole, the 3D printer light board comprising a plurality of light board assemblies arranged in an array, two adjacent light board assemblies being detachably connected, the light board assemblies comprising a plurality of ultraviolet LEDs arranged in an array, in two adjacent light board assemblies, all the ultraviolet LEDs are arranged in an array, and the ultraviolet LEDs are used to emit light through the light-transmitting hole.

[0005] A further technical solution is that a first space is provided between the light-transmitting film and the support member, and the support member is provided with an air extraction hole connected to the first space.

[0006] A further technical solution is that the light-transmitting film, the supporting member and the 3D printer light board are arranged to form a second space, and the second space is connected to the exhaust hole.

[0007] A further technical solution is that a detection module is arranged on the slot frame, and the detection module includes: a steering member, which is arranged in the internal space enclosed by the slot frame; and an image receiving member, which is arranged on the slot frame and is located outside the internal space and is arranged opposite to the steering member, and the steering member is used to redirect the scene light in the internal space to the image receiving member.

[0008] A further technical solution is that the deflection member includes a reflecting prism arranged on the groove frame, and the reflecting prism includes: an incident surface, facing the internal space, for receiving scene light and allowing the scene light to enter the reflecting prism; an exit surface, arranged opposite to the image receiving member; a reflecting surface, for receiving scene light and deflecting it to the exit surface, so that the scene light is emitted from the exit surface and reaches the image receiving member.

[0009] A further technical solution is that the lamp board assembly includes: a supporting shell; an ultraviolet lamp board module, which is detachably arranged on the supporting shell and located on the side of the supporting shell facing the supporting member, including a plurality of lamp board components arranged in an array, the lamp board components including a plurality of ultraviolet LEDs arranged in an array, and all the ultraviolet LEDs on the ultraviolet lamp board module are arranged in an array; and a lens array module, which is arranged on the ultraviolet lamp board module and located on the side of the ultraviolet lamp board module facing the supporting member, including a plurality of lens components arranged in an array, the lens components including a plurality of lenses arranged in an array, the lenses and the ultraviolet LEDs are arranged one-to-one, and in the lenses and ultraviolet LEDs arranged one-to-one, the lenses are used to correct the light emitted by the ultraviolet LEDs.

[0010] A further technical solution is that the lens component is detachably arranged on the ultraviolet lamp board module, and the lens component and the lamp board component are arranged in a one-to-one correspondence.

[0011] A further technical solution is that the lens has an optical axis, and the center of the light beam of the ultraviolet LED is located on the optical axis.

[0012] A further technical solution is that the support shell, the ultraviolet light board module and the lens array module are stacked, and the side surface of the support shell is flush with the side surface of the ultraviolet light board module.

[0013] A further technical solution is that the side surface of the lens array module is flush with the side surface of the ultraviolet lamp board module.

[0014] The present application realizes the printing function of the 3D printer by cooperating with the receiving slot and the 3D printer light board. The 3D printer light board is used as a backlight source and a mask, and the size of the 3D printer light board is controlled by modular splicing of multiple light board components, thereby realizing printing of larger size. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 is an exploded schematic diagram of a partial structure of a 3D printer in some embodiments of the present application;

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure of a part of the 3D printer in another perspective in the embodiment shown;

[0018] Figure 3 yes Figure 1 A schematic diagram of the structure of the support member in some embodiments of the embodiment shown;

[0019] Figure 4 yes Figure 3 An enlarged view of a portion A of the support member in the illustrated embodiment;

[0020] Figure 5 yes Figure 1 A schematic diagram of the structure of the receiving groove in some embodiments of the embodiment shown;

[0021] Figure 6 yes Figure 5 A schematic diagram of the structure of the slot frame in the illustrated embodiment;

[0022] Figure 7 yes Figure 5 A schematic diagram of the structure of the detection module in some embodiments of the embodiment shown;

[0023] Figure 8 yes Figure 7 An exploded view of a 3D printer light board in the illustrated embodiment;

[0024] Fig. 9 for Figure 7 A schematic diagram of the structure of the support housing in some embodiments of the illustrated embodiment;

[0025] Fig.10 yes Figure 7 The explosive decomposition of the UV light panel module of the illustrated embodiment in some embodiments;

[0026] Fig.11 yes Figure 7 An exploded view of the lens array module of the embodiment shown in the embodiment;

[0027] Fig.12 yes Fig.11 A schematic diagram of the structure of the lens of the illustrated embodiment in some embodiments. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] See also Figure 1 , Figure 1 is an exploded schematic diagram of a part of the structure of the 3D printer 100 in some embodiments of the present application, Figure 2 yes Figure 1 A schematic diagram of the structure of a partial structure of the 3D printer 100 in the illustrated embodiment at another viewing angle. The 3D printer 100 may include a support member 10, a receiving slot 20 disposed on one side of the support member 10, and a 3D printer light board 30 disposed on the other side of the support member 10. The support member 10 is used to support the receiving slot 20 and the 3D printer light board 30. The receiving slot 20 can be used to accommodate printing resin. The 3D printer light board 30 can be used to emit ultraviolet light so that the ultraviolet light irradiates the printing resin in the receiving slot 20, realizes photocuring of the printing resin, and finally realizes 3D printing. It can be understood that the 3D printer 100 may also include other devices, which will not be described in detail. For example, the 3D printer 100 may also include a printing plate extending into the receiving slot 20, so that the printing resin in contact with the printing plate is photocured on the printing plate, and then layer by layer printing is performed on the printing plate.

[0030] All directional indications in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, etc.) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a product or device that includes a series of shapes and structures is not limited to the listed shapes and structures, but optionally also includes shapes and structures that are not listed, or optionally also includes other shapes and structures inherent to these products or devices.

[0031] See also Figure 1 , Figure 3 and Figure 4 , Figure 3 yes Figure 1 A schematic diagram of the structure of the support member 10 in some embodiments shown in the embodiment, Figure 4 yes Figure 3An enlarged view of a part A of the support member 10 in the illustrated embodiment. The support member 10 may be a frame structure or a plate-like structure, and may be specifically configured as required. Here, the plate-like structure is taken as an example. The support member 10 is provided with a light-transmitting hole 11 penetrating the support member 10, so that the receiving groove 20 can be arranged opposite to the light-transmitting hole 11, and the 3D printer light board 30 can be arranged opposite to the light-transmitting hole 11. In addition, the ultraviolet light emitted by the 3D printer light board 30 passes through the light-transmitting hole 11 and irradiates into the receiving groove 20.

[0032] See also Figure 3 and Figure 4 The support member 10 is provided with a first groove 12 and a second groove 13 on one side close to the receiving groove 20. The second groove 13 can be arranged around the light transmission hole 11. Then, the receiving groove 20 can be arranged in the second groove 13 to realize the installation of the support member 10 and the receiving groove 20.

[0033] The terms "first" and "second" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0034] The first groove 12 may be disposed around the light-transmitting hole 11. There may be one first groove 12 disposed around the light-transmitting hole 11. There may be multiple first grooves 12, which are evenly distributed around the light-transmitting hole 11. A gap 14 is formed between two adjacent first grooves 12.

[0035] The first groove 12 and the second groove 13 may be spaced apart so that the second groove 13 is disposed in a circle in the first groove 12. In some embodiments, the first groove 12 may be disposed on the groove bottom of the second groove 13. In some embodiments, the light-transmitting hole 11 is disposed on the groove bottom of the second groove 13.

[0036] The first groove 12 may be provided with an air extraction hole 15. The air extraction hole 15 may extend to a side close to the 3D printer light board 30 to penetrate the support member 10. Of course, the arrangement of the air extraction hole 15 may be changed in structure and shape as required. The air extraction hole 15 may be assembled with an air extraction device such as a vacuum pump to realize the air extraction function. The air extraction device may also be an air pump, an air extractor, etc. In some embodiments, a receiving groove 20 is placed in the second groove 13 to realize the positioning and assembly of the support member 10 and the receiving groove 20. The receiving groove 20 may be directly placed in the second groove 13, or fillers such as foam particles and flexible silicone pads may be placed in the gap between the receiving groove 20 and the second groove 13 to ensure that the receiving groove 20 is firmly placed in the second groove 13. Of course, some fillers such as flexible silicone pads may also play a sealing role to reduce the risk of air leakage. Furthermore, the positioning and assembly of the support member 10 and the receiving groove 20 may also be connected and fixed by a snap-fit ​​structure, a screw connection structure, etc.

[0037] See also Figure 5 , Figure 5 yes Figure 1 The embodiment shown is a schematic diagram of the structure of the receiving groove 20 in some embodiments, the receiving groove 20 includes a groove frame 21 arranged in the support member 10, such as the second groove 13, and a light-transmitting film 22 arranged on the side of the groove frame 21 close to the support member 10. The groove frame 21 and the light-transmitting film 22 are arranged to form a space for accommodating the printing resin, that is, the light-transmitting film 22 serves as the groove bottom of the receiving groove 20. Obviously, when the receiving groove 20 is arranged in the second groove 13 of the support member 10, the light-transmitting film 22 covers the light-transmitting hole 11 and the first groove 12 of the support member 10. In some embodiments, the groove frame 21 and the light-transmitting film 22 are arranged to form an internal space 23, so that the receiving groove 20 can store the printing resin required for 3D printing in the internal space 23. Of course, the internal space 23 can also be said to be the space formed by all the surroundings of the groove frame 21. In some embodiments, the light emitted by the 3D printer light board 30 passes through the light-transmitting hole 11 and the light-transmitting film 22 in sequence, and irradiates the printing resin stored in the internal space 23 of the receiving groove 20, thereby completing the printing of the 3D object. In some embodiments, during printing, a light-transmitting isolation liquid may be placed in the inner space 23 of the receiving tank 20 first, and then the printing resin may be placed in the inner space 23. The light emitted by the 3D printer light board 30 passes through the light-transmitting hole 11 and the light-transmitting film 22 in sequence, irradiates the inner space 23 of the receiving tank 20, passes through the isolation liquid, and then irradiates the printing resin, thereby completing the printing of the 3D object.

[0038] In some embodiments, the addition of the isolation liquid allows the printed resin to be directly cured onto the printing plate after curing without the need for the cured printed resin to be peeled off from the transparent film 22. Of course, when there is no isolation liquid, the printed resin will be cured on the transparent film 22 and the printing plate, so that each printed layer requires a peeling action of the cured printed resin and the transparent film 22 from top to bottom. The air extraction hole 15 can make the transparent film 22 subject to an additional vacuum adsorption force during the vacuuming process, and adhere to the support 10. Therefore, during the peeling process of the cured printed resin and the transparent film 22 from top to bottom, the deformation amplitude of the transparent film 22 caused by the pulling of the cured printed resin is reduced, and the separation between the cured printed resin and the transparent film 22 is facilitated, thereby improving the efficiency of the peeling, ensuring that the transparent film 22 is not damaged, and shortening the stroke and movement time of the printing plate moving up and down. Of course, in some embodiments, the first groove 12 and the air extraction hole 15 can be omitted.

[0039] A plurality of first through holes 211 and second through holes 212 are provided on the groove frame 21. The first through holes 211 and the second through holes 212 both penetrate the groove frame 21 and are connected to the internal space 23. In some embodiments, the printing resin can be injected into the internal space 23 through the first through holes 211 and the second through holes 212. In some embodiments, after printing is completed, a cleaning device can also be used to extract and clean the remaining printing resin through the first through holes 211 and the second through holes 212. In some embodiments, the depth of the first through hole 211 at the mouth of the internal space 23 in the receiving groove 20 is shallower than the depth of the second through hole 212 at the mouth of the internal space 23 in the receiving groove 20. Furthermore, the isolation liquid can be injected and extracted through the second through hole 212. Furthermore, the printing resin can be injected and extracted through the first through hole 211.

[0040] At least one handle 24 is also provided on the groove frame 21. The handle 24 makes it easier to install and remove the receiving groove 20. In addition, the number of handles 24 is not fixed, and can be one or more. In some embodiments, a connector 25 is also provided on the handle 24, so that it can be detachably connected to the support member 10 through the connector 25 to ensure that the receiving groove 20 is more firmly placed on the support member 10. Specifically, the connector 25 can be a buckle, a hinge, etc.

[0041] See also Figure 2, when the receiving groove 20 is arranged in the second groove 13 and opposite to the light-transmitting hole 11, a first space 40 will be formed between the receiving groove 20, for example, the light-transmitting film 22 and the support member 10. Similarly, when the 3D printer light board 30 is added, so that the 3D printer light board 30 is arranged on one side of the support member 10 and opposite to the light-transmitting hole 11, the 3D printer light board 30, the support member 10 and the receiving groove 20 will enclose and form a second space 50. In other words, the first space 40 and the second space 50 can be the same space. Of course, the first space 40 can also be a space enclosed by the support member 10 and the light-transmitting film 22 covering the area around the light-transmitting hole 11.

[0042] The exhaust hole 15 on the support member 10 is connected to the first space 40 or the second space 50 formed between the receiving groove 20, the support member 10 and the 3D printer light board 30. In some embodiments, the exhaust device can exhaust the air in the first space 40 and the second space 50 through the exhaust hole 15, so that the light-transmitting film 22 at the bottom of the receiving groove 20 is closely attached to the support member 10. In some embodiments, the exhaust device can exhaust the air in the second space 50 through the exhaust hole 15, so that the light-transmitting film 22 at the bottom of the receiving groove 20 is closely attached to the 3D printer light board 30.

[0043] See also Figure 5 and Figure 6 , Figure 6 yes Figure 5 A schematic diagram of the structure of the slot frame 21 in the illustrated embodiment. A detection module 26 may also be provided on the slot frame 21 of the accommodating slot 20. Accordingly, the slot frame 21 of the accommodating slot 20 is provided with a groove 213. The groove 213 is recessed from the surface of the slot frame 21 in the internal space 23. Furthermore, the space enclosed by the groove 213 may also be part of the internal space 23. At the same time, the detection module 26 may be at least partially disposed in the groove 213 of the slot frame 21. In other words, the detection module 26 may be at least partially disposed in the internal space 23 enclosed by the slot frame 21. Of course, the detection module 26 may also be disposed on the light-transmitting film 22 or other parts of the slot frame 21 instead of in the groove 213. Furthermore, the detection module 26 may also be at least partially disposed at other positions in the internal space 23, and the number may be determined according to demand.

[0044] See also Figure 7 , Figure 7 yes Figure 5 The detection module 26 in some embodiments is a schematic diagram of the structure of the detection module 26 in the illustrated embodiment. The detection module 26 includes a steering member 261 disposed in the groove 213, an image receiving member 262 disposed opposite to the steering member 261, and a mounting member 263 for fixing the image receiving member 262 on the groove frame 21. The steering member 261 can be disposed in the internal space 23 enclosed by the groove frame 21. In some embodiments, the steering member 261 is disposed in the groove 213.

[0045] The image receiving member 262 is arranged on the groove frame 21 and can be located outside the internal space 23 and arranged opposite to the steering member 261. In some embodiments, the image receiving member 262 is arranged at the mounting through hole 2631 of the mounting member 263, so that the image receiving member 262 can be smoothly opposite to the steering member 261. Of course, the mounting member 263 can also be a plate-like structure, a frame structure, a support column or other supporting components. The steering member 261 is used to redirect the scene light in the internal space 23 (including the printing situation on the printing plate, the liquid level of the isolation liquid or the liquid level of the printing resin) to the image receiving member 262, and the image receiving member 262 is used to receive the scene light redirected by the steering member 261. In some embodiments, the image receiving member 262 can be a camera or other equipment with a camera function.

[0046] The steering member 261 may include a reflecting prism 2611. The reflecting prism 2611 may include an incident surface 2611a, an exit surface 2611b, and a reflecting surface 2611c. The incident surface 2611a faces the interior of the internal space 23, and is used to receive scene light and allow the scene light to enter the reflecting prism 2611. The exit surface 2611b is arranged opposite to the image receiving member 262. The reflecting surface 2611c is used to receive scene light and turn it to the exit surface 2611b, so that the scene light is emitted from the exit surface 2611b and is emitted to the image receiving member 262. Therefore, when printing a 3D object, the printing status can be detected in real time through the detection module 26. The steering member 261 may also be a component that can reflect scene light, such as a reflector, a plane mirror, etc.

[0047] In some embodiments, the reflective surface 2611c is fixedly contacted with the bottom of the groove 213, that is, connected and fixedly connected to the groove frame 21. In some embodiments, the groove 213 can be omitted. In some embodiments, the incident surface 2611a can be flush with the inner surface of the groove frame 21 in the internal space 23. In some embodiments, the emitting surface 2611b can be flush with the surface of the groove frame 21 on the side away from the light-transmitting film 22.

[0048] See also Figure 8 , Figure 8 yes Figure 7The exploded view of the 3D printer light board 30 in the illustrated embodiment. The 3D printer light board 30 is arranged on the side of the support member 10 away from the receiving groove 20. The 3D printer light board 30 can contact the receiving groove 20, such as the light-transmitting film 22, so that the 3D printer light board 30, the support member 10, and the receiving groove 20 can be stacked in sequence. In some embodiments, the 3D printer light board 30 can be in close contact with the receiving groove 20, such as the light-transmitting film 22, under the suction effect of the suction hole 15, so that the adhesion between the two is enhanced. The 3D printer light board 30 can be used as a light source for the 3D printer 100. When controlled, the 3D printer light board 30 can light up a part or all of the area to form a pattern, and can emit light in the area where the pattern is located due to being lit, through the light-transmitting hole 11 and the light-transmitting film 22, and 3D printing is performed on the printing plate in the receiving groove 20 using printing resin, thereby realizing the printing of this pattern, and further realizing 3D printing.

[0049] The 3D printer light board 30 may include a plurality of light board components 31 ( Figure 8 Two light panel assemblies 31 are shown, but are not limited to Figure 8 In some embodiments, the light board 30 of a 3D printer can be detachably connected or connected and fixed by means of screws, buckles, magnetism, bonding or Velcro. In some embodiments, the light board 30 of a 3D printer can be spliced ​​by detachably connecting multiple light board assemblies 31, thereby realizing the control of the size of the light board 30 of a 3D printer, so that the light board 30 of a 3D printer can be large-sized, which is convenient for large-size printing of the 3D printer 100.

[0050] The light board assembly 31 may include a support shell 311 detachably disposed on the support member 10, an ultraviolet light board module 312 disposed on a side of the support shell 311 close to the support member 10, and a lens array module 313 disposed on a side of the ultraviolet light board module 312 away from the support shell 311. The support shell 311 is used to support the ultraviolet light board module 312 and the lens array module 313. The ultraviolet light board module 312 can be used to be lit to form a pattern, and can emit ultraviolet light in the pattern area due to being lit. The ultraviolet light can pass through the light-transmitting hole 11 and the light-transmitting film 22, and 3D printing is performed on the printing plate in the receiving groove 20 using a printing resin. The lens array module 313 is used to pass through the ultraviolet light emitted by the ultraviolet light board module 312 and correct the ultraviolet light, which is convenient for the linear and efficient transmission of ultraviolet light and the precision control of 3D printing. In some embodiments, the support shell 311, the UV light board module 312 and the lens array module 313 can be stacked in sequence. In some embodiments, the support shell 311 and the UV light board module 312 and the lens array module 313 are arranged flush on the side, so that multiple light board assemblies 31 can be spliced ​​together to form a 3D printer light board 30, and can achieve indifferent splicing between adjacent two support shells 311 in two adjacent light board assemblies 31, can achieve indifferent splicing between adjacent two UV light board modules 312 in two adjacent light board assemblies 31, can achieve indifferent splicing between adjacent two lens array modules 313 in two adjacent light board assemblies 31, so that the 3D printer light board 30 can form an accurate and high-precision pattern when it is lit, and further complete high-precision 3D printing.

[0051] See also Fig. 9 ,for Figure 7The structural schematic diagram of the support shell 311 in some embodiments of the embodiment shown. The support shell 311 can be a shell structure, and of course it can also be a frame structure. The support shell 311 can be a shape that is easy to splice. Here, the outer shape of the support shell 311 is a rectangle as an example, of course it can also be other shapes, such as triangles, hexagons, etc., and is not limited to the embodiments listed here. The support shell 311 can be a solid, or it can have a cavity 3113 inside. In some embodiments, the support shell 311 may include four side panels 3111, a bottom plate 3112, and a support column 3114 arranged on the bottom plate 3112. The four side panels 3111 are connected end to end in sequence to form a rectangle. The four side panels 3111 are arranged on the bottom plate 3112. The four side panels 3111 and the bottom plate 3112 can form a cavity 3113. The four side panels 3111 can have a side surface of the support shell 311 to contact the side surface of the support shell 311 of the adjacent light panel assembly 31, so as to achieve indifferent splicing, and also achieve seamless splicing. It is understandable that the cavity 3113 can accommodate components such as circuit boards, wires, and control devices required for the light board assembly 31. In addition, in addition to these embodiments, the number of side panels 3111 of the support housing 311 can be determined as needed, and the side panels 3111 can be in a flat shape, a curved shape, or other shapes that are convenient for splicing. In some embodiments, the support column 3114 can be located in the cavity 3113 so as to cooperate with the side panels 3111 to jointly support the ultraviolet light board module 312, so as to ensure that the ultraviolet light board module 312 can be stably set on the support housing 311.

[0052] The side panel 3111 may be provided with a first connector 3115 and a second connector 3116. The first connector 3115 and the second connector 3116 may be detachably connected to adjacent light panel assemblies 31. In two adjacent light panel assemblies 31, the first connector 3115 of one light panel assembly 31 may be detachably connected to the second connector 3116 of the other light panel assembly 31. In some embodiments, Fig. 9The first connector 3115 and the second connector 3116 in the embodiment may both be mounting holes, and the first connector 3115 that is detachably connected to the adjacent light panel assembly 31 and the first connector 3115, such as the mounting hole, may be a clamping column that extends into the mounting hole and is engaged. The second connector 3116 that is detachably connected to the adjacent light panel assembly 31 and the second connector 3116, such as the mounting hole, may be a clamping column that extends into the mounting hole and is engaged. In some embodiments, one of the first connector 3115 and the second connector 3116 may be a mounting hole, and the other may be a clamping column that extends into the mounting hole. Of course, the matching relationship between the first connector 3115 and the second connector 3116 may also be a detachable matching relationship such as screws, buckles, magnets, Velcro, etc. Of course, the side panel 3111 and the adjacent light panel assembly 31 may also be bonded. In some embodiments, only one of the first connector 3115 and the second connector 3116 may be provided on the side panel 3111, while the other of the first connector 3115 and the second connector 3116 may be provided on the adjacent light panel assembly 31. In some embodiments, the number of the first connector 3115 and the second connector 3116 is not limited and may be one or more.

[0053] See also Figure 8 and Fig.10 , Fig.10 yes Figure 7 The ultraviolet light board module 312 of the illustrated embodiment explodes and decomposes in some embodiments. The ultraviolet light board module 312 is detachably disposed on one side of the support housing 311. The ultraviolet light board module 312 may include a plurality of light board components 3121 disposed on the support housing 311 and arranged in an array. The plurality of light board components 3121 may be spliced, thereby achieving the control of the size of the 3D printer light board 30, so that the 3D printer light board 30 can achieve large-size specifications, which is convenient for large-size printing of the 3D printer 100. In some embodiments, two adjacent light board components 3121 may be spliced ​​in contact or may be spliced ​​by bonding.

[0054] The light board component 3121 may include a plurality of ultraviolet LEDs 3121a arranged in an array. Of course, the light board component 3121 may also include a substrate, a circuit layer and other structures that support and cooperate with the ultraviolet LEDs 3121a, which can be set according to the conventional techniques of those skilled in the art and will not be elaborated here. After the ultraviolet light board module 312 is assembled after the plurality of light board components 3121 are assembled, all the ultraviolet LEDs 3121a are arranged in an array, thereby ensuring high-precision control of the pattern. Specifically, the ultraviolet light board module 312 can be detachably arranged on the support shell 311, such as the side panel 3111 and the support column 3114, for example, by means of detachable means such as screws, buckles, Velcro, magnetism, and bonding. The ultraviolet LEDs 3121a of the ultraviolet light board module 312 can be partially or completely lit when controlled, and any image can be displayed. That is, the UV LED 3121a serves as both a light source of the 3D printer 100 and a mask of the 3D printer 100 to ensure that an accurate shape can be printed when printing a 3D object. In some embodiments, each UV LED 3121a can serve as a pixel of a pattern. The size of the UV LED 3121a can be set as needed.

[0055] In some embodiments, two adjacent ultraviolet LEDs 3121a in one or more light board components 3121 may be contact-joined or bond-joined. In some embodiments, the sides of two adjacent ultraviolet LEDs 3121a in the light board component 3121 are contact-joined.

[0056] The lamp board component 3121 may have a side surface 3122. The side surface 3122 of the lamp board component 3121 located at the edge in the ultraviolet lamp board module 312 may serve as the side surface of the ultraviolet lamp board module 312, and further in the lamp board assembly 31, may be flush with the side surface of the support housing 311. That is, in the lamp board assembly 31, the side surface of the ultraviolet lamp board module 312 may be flush with the side surface of the support housing 311, so as to facilitate the splicing of the lamp board assembly 31.

[0057] See also Figure 8 and Fig.11 , Fig.11 yes Figure 7 The exploded view of the lens array module 313 in the embodiment shown in the embodiment. The lens array module 313 can be in contact with the receiving groove 20, such as the light-transmitting film 22. In some embodiments, the lens array module 313 can be in close contact with the receiving groove 20, such as the light-transmitting film 22, under the suction effect of the suction hole 15, so that the adhesion between the two is enhanced.

[0058] The lens array module 313 may include a plurality of lens components 3131 disposed on the ultraviolet light board module 312 and arranged in an array. The plurality of lens components 3131 may be spliced, thereby achieving the control of the size of the 3D printer light board 30, so that the 3D printer light board 30 can achieve large-size specifications, which is convenient for large-size printing of the 3D printer 100. In some embodiments, two adjacent lens components 3131 may be spliced ​​in contact or may be spliced ​​by bonding. In some embodiments, the side surfaces of two adjacent lens components 3131 in the lens array module 313 are spliced ​​in contact.

[0059] The lens array module 313 may include a plurality of lens components 3131 disposed on the ultraviolet light board module 312 and arranged in an array. The plurality of lens components 3131 may be spliced, thereby achieving the control of the size of the 3D printer light board 30, so that the 3D printer light board 30 can achieve large-size specifications, which is convenient for large-size printing of the 3D printer 100. In some embodiments, two adjacent lens components 3131 may be spliced ​​in contact or may be spliced ​​by bonding. In some embodiments, the side surfaces of two adjacent lens components 3131 in the lens array module 313 are spliced ​​in contact.

[0060] The lens component 3131 is detachably arranged on the ultraviolet lamp board module 312, such as the lamp board component 3121. The lens component 3131 may include lenses 3131a arranged in an array. Of course, the lens component 3131 may also include a substrate or a bracket and other structures that support and cooperate with the lens 3131a, which can be set according to the conventional technology of those skilled in the art, and will not be repeated here. The lens array module 313 is detachably arranged on the ultraviolet lamp board module 312. For example, it is set in a detachable manner such as snap-on, magnetic, and adhesive. It can be understood that the lens components 3131 and the lamp board components 3121 can be the same in number and are arranged one-to-one. And the lenses 3131a in the lens component 3131 are the same in number as the ultraviolet LEDs 3121a in the lamp board component 3121, and are arranged one-to-one. Among them, in the one-to-one corresponding arrangement of the lens 3131a and the ultraviolet LED 3121a, the lens 3131a is used to correct the light emitted by the ultraviolet LED 3121a so that the light can be emitted parallelly upward, reduce the possibility of astigmatism, and improve the accuracy of 3D printing. In some embodiments, the size of the lens 3131a can be set according to the size of the ultraviolet LED 3121a to adapt to the ultraviolet LED 3121a.

[0061] The lens component 3131 may have a side surface 3132. In the lamp board assembly 31, the side surface 3132 of the lens component 3131 may serve as the side surface of the lens array module 313, and further may be flush with the side surface of the ultraviolet lamp board module 312, for easy splicing.

[0062] See also Fig.12 , Fig.12 yes Fig.11 The schematic diagram of the structure of the lens 3131a of the illustrated embodiment in some embodiments. The lens 3131a includes a plane 3131b close to the ultraviolet light board module 312 and a convex surface 3131c away from the ultraviolet light board module 312. The cooperation of the plane 3131b and the convex surface 3131c can correct the ultraviolet light emitted by the ultraviolet light LED 3121a. It can be understood that the lens 3131a can also be a convex lens of other types, or a lens of other shapes that can be used to correct light. In some embodiments, the lens 3131a also includes a side surface 3131d connecting the plane 3131b and the convex surface 3131c. Further, the side surface 3131d can include a first side surface 3131e, a second side surface 3131f, a third side surface 3131g and a fourth side surface 3131h connected in sequence from beginning to end. It is understandable that the side surface 3131d and the first side surface 3131e, the second side surface 3131f, the third side surface 3131g and the fourth side surface 3131h can be flat, curved or convex, etc. In some embodiments, the lens 3131a can be arranged opposite to the side surface 3131d of the adjacent lens 3131a or contact spliced ​​or bonded and fixedly spliced ​​on the side surface 3131d.

[0063] Please also see Figure 8 and Fig.12 , the lens 3131a has an optical axis 3131i, so that the light emitted by the ultraviolet LED 3121a is transmitted on the optical axis 3131i to pass through the lens 3131a. In some embodiments, when the lens array module 313 is placed on the ultraviolet light board module 312, the center of the light beam of an ultraviolet LED 3121a of the ultraviolet light board module 312 is just located on the optical axis 3131i of the lens 3131a corresponding to the ultraviolet LED 3121a.

[0064] See also Figure 8 In two adjacent detachably connected light board assemblies 31, all the ultraviolet LEDs 3121a on the two light board assemblies 31 are arranged in an array to ensure the quality of the image formed by the ultraviolet LEDs 3121a being lit. Accordingly, all the lenses 3131a on the two light board assemblies 31 are arranged in an array to ensure the accuracy of 3D printing.

[0065] Please also see Figure 8 , Fig. 9 , Fig.10 and Fig.11In two adjacent light board assemblies 31 that are detachably connected, the side of the support housing 311 in one light board assembly 31 can be contacted and spliced ​​with the side of the support housing 311 in another light board assembly 31 or can be detachably connected and fixedly spliced, the side of the ultraviolet light board module 312 in one light board assembly 31 can be contacted and spliced ​​with the side of the ultraviolet light board module 312 in another light board assembly 31 or can be detachably connected and fixedly spliced, and the side of the lens array module 313 in one light board assembly 31 can be contacted and spliced ​​with the side of the lens array module 313 in another light board assembly 31 or can be detachably connected and fixedly spliced, so that the light board assemblies 31 can be modularly spliced ​​into a large-sized 3D printer light board 30. It can be understood that the side of the support housing 311, the side of the ultraviolet light board module 312, and the side of the lens array module 313 can be a plane, a curved surface, or other shapes that are easy to splice.

[0066] In summary, it is easy for a person skilled in the art to understand that the present application realizes the control of the size of the 3D printer light board 30 through the modular splicing of the ultraviolet light board module 312, so that the 3D printer light board 30 can achieve large size specifications. At the same time, through the modularization of the lens array module 313, the light of the ultraviolet LED 3121a is corrected, so that the large-size splicing of the ultraviolet light board module 312 is not restricted.

[0067] In some embodiments, the 3D printer light board 30 can extend into the light-transmitting hole 11, and large-size specifications can be controlled in the light-transmitting hole 11.

[0068] The present application realizes the printing function of the 3D printer 100 by cooperating with the receiving slot 20 and the 3D printer light board 30. The 3D printer light board 30 is used as a backlight source and a mask, and the size of the 3D printer light board 30 is controlled by modular splicing of multiple light board assemblies 31, thereby realizing printing of a larger size.

[0069] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A 3D printer, characterized in that: include: Supports; A receiving groove, provided on one side of the support member, for receiving printing resin; A 3D printer light board, arranged on the other side of the support member, the 3D printer light board is used to emit ultraviolet light so that the ultraviolet light irradiates the printing resin in the receiving groove, the 3D printer light board comprises a plurality of light board assemblies arranged in an array, two adjacent light board assemblies are detachably connected, and the light board assembly comprises a plurality of ultraviolet LEDs arranged in an array; A steering member, disposed in the receiving groove; as well as The image receiving member is arranged opposite to the deflecting member, and the deflecting member is used for deflecting the scene light in the containing groove to the image receiving member.

2. The 3D printer according to claim 1, characterized in that: The 3D printer further comprises a mounting member, and the image receiving member is arranged on the mounting member.

3. The 3D printer according to claim 1 or 2, characterized in that: The steering member includes a reflecting prism disposed on the receiving groove, and the reflecting prism includes: An incident surface, used for receiving the scene light and allowing the scene light to enter the reflecting prism; An exit surface, arranged opposite to the image receiving element; The reflecting surface is used to receive the scene light incident from the incident surface into the reflecting prism and redirect it to the exit surface, so that the scene light is emitted from the exit surface and incident on the image receiving element.

4. The 3D printer according to claim 3, characterized in that: A groove is arranged in the receiving groove, the reflecting prism is arranged in the groove, and the inner surface of the receiving groove is flush with the incident surface and the emitting surface at the location of the groove.

5. The 3D printer according to any one of claims 1-2, characterized in that: The receiving tank comprises: a channel frame, the steering member being arranged on the channel frame; and A light-transmitting film is arranged on one side of the groove frame to form an internal space together with the groove frame, and the internal space is used to accommodate the printing resin.

6. The 3D printer according to claim 5, characterized in that: The groove frame is provided with a groove, the groove is provided on the surface of the groove frame in the inner space, and the steering member is provided in the groove.

7. The 3D printer according to claim 5, characterized in that: The support member is provided with a light-transmitting hole penetrating the support member, the accommodating groove is arranged opposite to the light-transmitting hole, the groove frame is arranged on the support member, the light-transmitting film is arranged on a side of the groove frame close to the support member and covers the light-transmitting hole; the 3D printer light board is arranged opposite to the light-transmitting hole and is used to emit light through the light-transmitting hole.

8. The 3D printer according to claim 7, characterized in that: A first space is defined between the light-transmitting film and the support member, and the support member is provided with an air extraction hole communicating with the first space.

9. The 3D printer according to claim 8, characterized in that: The light-transmitting film, the supporting member and the 3D printer light board are arranged to form a second space, and the second space is communicated with the air extraction hole.

10. The 3D printer according to claim 5, characterized in that: The groove frame is provided with a first through hole and a second through hole which are respectively communicated with the internal space.

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