A 3D printer

Abstract

The application provides a 3D printer, which comprises a base frame, a printing device, resin tank loading bins and resin tank recycling bins, a resin tank conveying device and a pushing device. The printing device is connected with the base frame. The resin tank loading bins and the resin tank recycling bins are connected with the base frame and are arranged on both sides of the base frame. The resin tank conveying device is arranged between the resin tank loading bin and the printing device to convey resin tank parts between the printing device and the resin tank loading bin. The pushing device is connected with the base frame and is arranged on one side of the resin tank loading bin to push the resin tank parts in the resin tank loading bin to the resin tank conveying device or to separate the resin tank parts used by the printing device from the resin tank conveying device. The 3D printer can realize continuous automatic printing. Compared with the prior art in which the resin tank is disassembled and replaced manually, the 3D printer can improve the working efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of 3D printing technology, in particular to a 3D printer. BACKGROUND

[0002] 3D printing technology is a series of rapid prototyping technology, also known as "additive manufacturing", the basic principle is layer manufacturing, based on digital model, through software layering and numerical control forming system, using laser beam, electron beam and other tools to eat material (plant protein, animal protein), metal, ceramic, medical resin, film, special alloy and other materials, through layer by layer stacking, layer by layer printing, by rapid prototyping machine in X-Y plane through scanning to form the cross section shape of the workpiece, and in Z coordinate discontinuously layer thickness displacement, finally forming three-dimensional parts. The post-processing system is usually used to clean the printing residues for subsequent repeated printing work.

[0003] In the prior art, the 3D printer includes a forming platform, and a resin tank is fixed on the forming platform. The resin tank can realize continuous work through automatic liquid supplementing and automatic shoveling function. However, after printing for a certain period of time, the solidified resin particles in the resin tank will float or deposit in the resin tank, which will damage the release film on the bottom surface of the resin tank, resulting in printing failure and shortening the service life of the resin tank. Therefore, the resin tank needs to be replaced or cleaned.

[0004] However, the above-mentioned 3D printer needs to stop working during the replacement of the resin tank, and then the resin tank is manually disassembled and replaced, which will affect the working efficiency of the 3D printer and cannot realize continuous printing. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is that in the prior art, the 3D printer needs to stop working during the replacement of the resin tank, and then the resin tank is manually disassembled and replaced, which will affect the working efficiency of the 3D printer.

[0006] Therefore, the present application provides a 3D printer, which comprises:

[0007] a base frame;

[0008] a printing device connected with the base frame;

[0009] a resin tank loading bin and a resin tank recycling bin, which are connected with the base frame and arranged side by side on both sides of the base frame;

[0010] a resin tank conveying device arranged between the resin tank loading bin and the printing device to convey the resin tank between the printing device and the resin tank loading bin;

[0011] A pushing device is connected with the base frame, and is arranged at one side of the resin tank loading bin to push the resin tank in the resin tank loading bin to the resin tank conveying device or separate the resin tank used by the printing device from the resin tank conveying device.

[0012] Optionally, the resin tank conveying device comprises:

[0013] A conveying motor is connected with the base frame.

[0014] A belt wheel is connected with the base frame, and is arranged at one side of the resin tank loading bin. A transmission belt is connected between the belt wheel and the output end of the conveying motor.

[0015] A clamping frame is fixedly connected with the transmission belt, and an inner through slot is arranged in the clamping frame. The resin tank in the resin tank loading bin passes through the through slot to the upper side of the clamping frame.

[0016] A first elastic member is arranged at the side wall of the through slot. When the resin tank passes through the through slot, the first elastic member is elastically deformed by the extrusion of the resin tank.

[0017] A plurality of fixing members are arranged on the through slot to fix the resin tank.

[0018] Optionally, the pushing device comprises:

[0019] A pushing motor is connected with the base frame.

[0020] A pushing plate is slidingly connected with the support column on the base frame. The pushing end of the pushing plate is arranged at the bottom of the resin tank loading bin and abuts against the resin tank.

[0021] A threaded rod is connected at one end with the output end of the pushing motor, and is connected at the other end with a threaded hole on the pushing plate.

[0022] The pushing plate is driven by the threaded rod to move relative to the axis direction of the threaded rod to push the resin tank to move in the resin tank loading bin.

[0023] Optionally, at least one pair of displacement pieces are arranged on the resin tank recycling bin. The displacement pieces are oppositely arranged. The displacement pieces are away from each other to form a displacement space under the action of an external force. The displacement space is suitable for placing the resin tank.

[0024] Optionally, the printing device comprises a component platform, a forming platform and a self-locking assembly. The component platform is connected with the base frame. The forming platform is movably connected with the component platform. The self-locking assembly is arranged between the component platform and the forming platform.

[0025] The self-locking assembly comprises

[0026] A fastener rotatably arranged between the component platform and the forming platform;

[0027] A connecting rod structure, one end of which is connected to the fastener, and the other end of which is rotatably connected to the component platform, the connecting rod structure being configured to be driven by the component platform to rotate the fastener;

[0028] The fastener has a locking state in which it rotates relative to the component platform in a first direction under the action of the connecting rod structure until it abuts against the surface of the forming platform, so that the component platform and the forming platform move synchronously.

[0029] The fastener also has an unlocking state in which it rotates relative to the component platform in the first direction or the reverse direction of the first direction under the action of the connecting rod structure until it separates from the surface of the forming platform, so that the component platform and the forming platform are movably connected, and the fastener is switched between the locking state and the unlocking state under the action of an external force.

[0030] Optionally, the connecting rod structure comprises:

[0031] A fixed rod connected to the fastener to drive the fastener to move;

[0032] An action rod rotatably connected to the component platform, the action rod being rotatable relative to the component platform about a rotation center O;

[0033] A transmission rod hingedly connected between the action rod and the fixed rod;

[0034] The action rod comprises a driving rod and a connecting rod connected to each other at the rotation center O, the connecting rod being hingedly connected to the transmission rod, and the driving rod and the connecting rod being arranged at an angle at the connection.

[0035] Optionally, the device further comprises:

[0036] A driving device connected to the component platform, the component platform being configured to move in a second direction or the reverse direction of the second direction under the action of the driving device;

[0037] A limiting member arranged on one side of the component platform, the limiting member being provided with a limiting groove, and a driving rod being slidably arranged in the limiting groove;

[0038] When the component platform is driven by the driving device to move in a second direction or a reverse direction of the second direction, the action rod connected therewith is driven to move synchronously, so as to drive the driving rod to move in the limiting groove, and drive the connecting rod to rotate.

[0039] Optionally, the shoveling device comprises

[0040] The driving member is in sliding connection with the slide rail on the base frame, and is configured to be connected with the forming platform to drive the forming platform to move.

[0041] The shoveling assembly is connected with the base frame, and is arranged on the lower side of the forming platform.

[0042] The shoveling assembly comprises a shoveling member and a second elastic member connected with each other.

[0043] In the let-in state, the second elastic member has an elastic force to drive the shoveling member to move towards the forming platform.

[0044] Optionally, the shoveling member comprises:

[0045] The scraping member is arranged in the base frame and is in movable connection with the base frame.

[0046] The body part and the abutting adapter are fixedly connected, and the scraping member is movably connected with the body part.

[0047] The clamping part is connected between the scraping member and the body part to adjust the included angle between the plane where the scraping member is located and the plane where the forming platform is located.

[0048] Optionally, the driving member comprises a sliding part and a plug-in part connected with each other, the sliding part is in sliding connection with the slide rail, and the abutting part is arranged on the side of the sliding part close to the shoveling assembly, and the plug-in part is adapted to be connected with the forming platform.

[0049] The 3D printer provided by the application has the following advantages.

[0050] 1. The 3D printer provided by the present application, comprising a base frame, a printing device, a resin tank loading bin and a resin tank recycling bin, a resin tank conveying device and a pushing device, wherein the printing device is connected with the base frame, the resin tank loading bin and the resin tank recycling bin are connected with the base frame and arranged side by side on both sides of the base frame, the resin tank conveying device is arranged between the resin tank loading bin and the printing device to convey the resin tank to the printing device, the pushing device is connected with the base frame and arranged on one side of the resin tank loading bin to push the resin tank in the resin tank loading bin to the resin tank conveying device or separate the resin tank used by the printing device from the resin tank conveying device.

[0051] The 3D printer with the above structure, by arranging the base frame, the printing device, the resin tank loading bin and the resin tank recycling bin, the resin tank conveying device and the pushing device, and arranging the resin tank conveying device between the resin tank loading bin and the printing device and arranging the pushing device on one side of the resin tank loading bin to push the resin tank in the resin tank loading bin to the resin tank conveying device or separate the resin tank used by the printing device from the resin tank conveying device, so that when the 3D printer is printing, the pushing device pushes the resin tank in the resin tank loading bin to move up to the resin tank conveying device, the resin tank conveying device sends the resin tank into the working area of the printing device, after processing, the resin tank conveying device sends the resin tank used by the printing device to the lower side of the resin tank recycling bin, the pushing device pushes another unused resin tank in the resin tank loading bin to move up to abut the resin tank on the resin tank conveying device and push it into the resin tank recycling bin, the unused resin tank is sent to the resin tank conveying device, the resin tank conveying device sends the resin tank on it into the working area of the printing device, and the operation is repeated, so that the 3D printer can realize continuous automatic printing, and compared with the prior art which replaces the resin tank by manual disassembly, the present application can improve the working efficiency of the 3D printer.

[0052] 2. The 3D printer provided by the present application, the printing device comprises a component platform, a forming platform and a self-locking assembly, the component platform is connected with the base frame, the forming platform is movably connected with the component platform, and the self-locking assembly is arranged between the component platform and the forming platform; wherein the self-locking assembly comprises a fastener and a connecting rod structure, the fastener is rotatably arranged between the component platform and the forming platform; one end of the connecting rod structure is connected with the fastener, the other end of the connecting rod structure is rotatably connected with the component platform, and the connecting rod structure is configured to be driven by the component platform to rotate the fastener; the fastener has a locking state of keeping the component platform and the forming platform in synchronous movement by rotating relative to the component platform along a first direction under the action of the connecting rod structure until the fastener abuts against the surface of the forming platform; the fastener also has an unlocking state of keeping the component platform and the forming platform in movable connection by rotating relative to the component platform along the first direction or the reverse direction of the first direction under the action of the connecting rod structure until the fastener is separated from the surface of the forming platform, and the fastener is switched between the locking state and the unlocking state under the action of an external force.

[0053] The 3D printer with the above structure sets the fastener between the component platform and the forming platform, and connects the connecting rod structure between the component platform and the fastener, so that when the component platform moves under the driving of an external force, the fastener can be rotated by the connecting rod structure, thereby making the fastener rotate relative to the component platform along a first direction under the action of the connecting rod structure until the fastener abuts against the surface of the forming platform to keep the component platform and the forming platform in synchronous movement in a locking state, so that when the component platform drives the forming platform to move during the operation of the 3D printer, the fastener is driven into the locking state by the connecting rod structure, compared with the manual locking in the prior art, the present application can avoid the loosening of the component platform or the support plate caused by the deviation of the artificial locking force during locking, so that the shaking of the forming platform does not affect the printing precision of the 3D printer, and the fastener also has an unlocking state of keeping the component platform and the forming platform in movable connection by rotating relative to the component platform along the first direction or the reverse direction of the first direction under the action of the connecting rod structure until the fastener is separated from the surface of the forming platform, so that the forming platform can be conveniently taken out after processing is completed.

[0054] 3. The 3D printer provided by the present application, further comprising a shoveling device, the shoveling device comprising a driving member and a shoveling assembly, the driving member being in sliding connection with a sliding rail on the base frame, the driving member being configured to be connected with the forming platform to drive the forming platform to move, the driving member having an abutting portion; the shoveling assembly being connected with the base frame, and the shoveling assembly being arranged on the lower side of the forming platform; wherein the shoveling assembly comprises a shoveling member and a second elastic member connected with each other, in the state that the driving member and the base frame are in sliding connection, the shoveling member has a let-go state of moving away from the forming platform under the driving of the abutting portion; in the let-go state, the second elastic member has an elastic force to drive the shoveling member to move towards the forming platform.

[0055] The 3D printer with the above structure, by arranging the abutting portion and the elastic member, when the driving member drives the forming platform to move towards the shoveling assembly, the abutting portion on the driving member abuts on the shoveling member, so that the shoveling member moves away from the forming platform under the driving of the abutting portion when the forming platform moves towards the shoveling assembly, at the same time, the shoveling member compresses the elastic member to make the elastic member elastically deform, thereby avoiding the collision between the forming platform and the shoveling member, and preventing the shoveling member from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0056] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0057] Figure 1 The isometric view of the 3D printer provided in the embodiments of the present application;

[0058] Figure 2 The front view of the 3D printer provided in the embodiments of the present application;

[0059] Figure 3 The Figure 2 The enlarged view of the structure at circle A;

[0060] Figure 4 The rear view of the 3D printer provided in the embodiments of the present application;

[0061] Figure 5 The isometric view of the printing device in the 3D printer provided in the embodiments of the present application;

[0062] Figure 6 The structural schematic view of the printing device in the 3D printer provided in the embodiments of the present application;

[0063] Figure 7 A motion schematic diagram of the self-locking assembly in the 3D printer provided in the embodiment of the present application;

[0064] Figure 8 Another motion schematic diagram of the self-locking assembly in the 3D printer provided in the embodiment of the present application;

[0065] Figure 9 A structural schematic diagram of the resin tank conveying device in the 3D printer provided in the embodiment of the present application;

[0066] Figure 10 A structural schematic diagram of the resin tank conveying device in the 3D printer provided in the embodiment of the present application; Figure 9 An enlarged view of the structure at circle B in the embodiment of the present application;

[0067] Figure 11 A perspective view of the shoveling device in the 3D printer provided in the embodiment of the present application;

[0068] Figure 12 A structural schematic diagram of the shoveling device in the 3D printer provided in the embodiment of the present application;

[0069] Figure 13 A structural schematic diagram of the shoveling device in the 3D printer provided in the embodiment of the present application; Figure 12 An enlarged view of the structure at circle C in the embodiment of the present application;

[0070] Figure 14 A structural schematic diagram of the shoveling device in the 3D printer provided in the embodiment of the present application;

[0071] Figure 15 A structural schematic diagram of the fastening assembly in the 3D printer provided in the embodiment of the present application;

[0072] Explanation of reference numerals:

[0073] 1 - base frame;

[0074] 21 - component platform; 22 - forming platform;

[0075] 31 - resin tank loading bin; 32 - resin tank; 33 - resin tank recovery bin; 331 - give way sheet;

[0076] 4 - resin tank conveying device; 41 - conveying motor; 42 - pulley; 43 - transmission belt; 44 - clamping frame; 45 - first elastic member; 46 - fixing member;

[0077] 5 - pushing device; 51 - pushing motor; 52 - pushing plate; 53 - threaded rod;

[0078] 6 - self-locking assembly; 61 - fastening member; 62 - connecting rod structure; 621 - fixed rod; 622 - acting rod; 623 - transmission rod; 63 - limiting member; 64 - abutting member;

[0079] 7-Drive unit;

[0080] 8-Shovel assembly; 81-Driver; 811-Sliding part; 812-Insertion part; 813-Abutting part; 82-Driven part; 83-Shovel blade; 831-Scraper part; 832-Body part; 833-Clamping part; 84-Second elastic element; 85-Fastening assembly; 851-Fastening rod; 852-Connecting rod; 86-Abutting adapter; 87-Stop part;

[0081] 9-Sensor. Detailed Implementation

[0082] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0083] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

[0084] Example

[0085] This embodiment provides a 3D printer, such as... Figures 1 to 15 As shown, it includes a base frame 1, a printing device, a resin tank loading chamber 31 and a resin tank recovery chamber 33, a resin tank conveying device 4, a pushing device 5, and a shovel device 8.

[0086] Among them, such as Figures 1 to 4 as well as Figures 9 to 11As shown, a plurality of support columns are arranged in the base frame 1, a printing device is arranged above the base frame 1 for 3D printing, a resin tank loading bin 31 and a resin tank recycling bin 33 are arranged on the base frame 1, and the resin tank loading bin 31 and the resin tank recycling bin 33 are arranged side by side, a resin tank conveying device 4 is connected with the base frame 1, and the resin tank conveying device 4 is arranged between the resin tank loading bin 31 and the printing device to send the resin tank 32 in the resin tank loading bin 31 to the working area of the printing device, and to send the resin tank 32 used by the printing device to the resin tank recycling bin 33, and a pushing device 5 is arranged on the same side of the resin tank loading bin 31 and the resin tank recycling bin 33, for sending the resin tank 32 in the resin tank loading bin 31 into the resin tank conveying device 4, and for sending the resin tank 32 used by the printing device in the resin tank conveying device 4 into the resin tank recycling bin 33. The side of the resin tank loading bin 31 close to the resin tank conveying device 4 is arranged as an opening.

[0087] The resin tank loading bin 31, the resin tank conveying device 4, the pushing device 5 and the resin tank recycling bin 33 cooperate with each other, the pushing device 5 sends the resin tank 32 in the resin tank loading bin 31 into the resin tank conveying device 4, the resin tank conveying device 4 sends the resin tank 32 thereon to the working area of the printing device for printing, after printing, the resin tank conveying device 4 sends the used resin tank 32 again to above the resin tank loading bin 31, i.e. below the resin tank recycling bin 33, the pushing device 5 pushes the unused resin tank 32 in the resin tank loading bin 31 again, in the process of pushing, the unused resin tank 32 pushes the used resin tank 32 above it to move to the resin tank recycling bin 33, and then the resin tank conveying device 4 sends the unused resin tank 32 thereon to the working area of the printing device again for printing, and the cycle is completed, so that the resin tank 32 is automatically replaced, and compared with the manual replacement in the prior art, the resin tank 32 can be automatically replaced, continuous printing is realized, and the printing efficiency is improved.

[0088] At the same time, after the resin tank conveying device 4 sends the resin tank 32 thereon to the working area of the printing device, since the resin is composed of a plurality of materials, and is placed in a bottle for a long time, the materials inside will have a difference in density and will have a sediment, so that the extracted resin has a difference from the actual formula, and the printing quality is affected, so that after the resin is uniformly mixed by an external device, the resin is extracted into the resin tank 32 by the peristaltic pump, and printing is realized. After a certain time of printing, there will be solidified resin particles floating or sediments in the resin tank 32, which will damage the release film on the bottom surface of the resin tank 32, affect the printing, and shorten the service life of the resin tank 32, so that the resin tank 32 is replaced by cooperation of the above devices, the damage probability of the resin tank 32 is reduced, and the printing success rate is improved.

[0089] AsFigures 1 to 4 As shown, the pushing device 5 comprises a pushing motor 51, a pushing plate 52 and a threaded rod 53, wherein the pushing motor 51 is connected with the base frame 1, the pushing plate 52 is in sliding connection with the support column on the base frame 1, the pushing end of the pushing plate 52 is arranged at the bottom of the resin groove loading bin 31 and abuts against the resin groove member 32, one end of the threaded rod 53 is connected with the output end of the pushing motor 51, and the other end of the threaded rod 53 is connected with the threaded hole on the pushing plate 52. In working, the pushing motor 51 drives the threaded rod 53 to rotate, and the threaded hole on the pushing plate 52 cooperates with the external thread on the outer side of the threaded rod 53 to enable the pushing plate 52 to move relative to the axial direction of the threaded rod 53, so as to push the resin groove member 32 to move inside the resin groove loading bin 31.

[0090] It can be understood that in other embodiments, the pushing device 5 can also adopt a pneumatic cylinder or the like, which can also achieve the pushing of the resin groove member 32.

[0091] As shown, Figures 9 to 11 The resin groove conveying device 4 comprises a conveying motor 41, a pulley 42, a transmission belt 43, a clamping frame 44, a first elastic member 45, a fixing member 46, the conveying motor 41 is connected with the base frame 1, the pulley 42 is in rotary connection with the base frame 1, and the pulley 42 is arranged on one side of the resin groove loading bin 31, the transmission belt 43 is connected between the pulley 42 and the output end of the conveying motor 41, the base frame 1 is provided with a sliding rail, the clamping frame 44 is in sliding connection with the sliding rail, and the clamping frame 44 is fixedly connected with the transmission belt 43 through a fixing connecting member, the clamping frame 44 is internally provided with a through slot, the resin groove member 32 in the resin groove loading bin 31 passes through the through slot to the upper side of the clamping frame 44, the number of the first elastic members 45 is two, and the two first elastic members 45 are oppositely arranged on the side walls of the through slot. When the resin groove member 32 passes through the through slot, the first elastic members 45 are in a yielding state of being elastically deformed by being pressed by the resin groove member 32, and the resin groove member 32 is clamped by the elastic force of the first elastic members 45 until the first elastic members 45 restore the deformation to support the bottom of the resin groove member 32 after the resin groove member 32 completely passes through the through slot. The number of the fixing members 46 is four, and the fixing members 46 are arranged on the through slot to limit the resin groove member 32, so that the fixing members 46 and the first elastic members 45 cooperate to fix the resin groove member 32. It can be understood that the number of the first elastic members 45 and the fixing members 46 can be determined according to production requirements.

[0092] As shown, Figure 4As shown, the resin tank recycling bin 33 is provided with at least one pair of allowing pieces 331, the allowing pieces 331 are oppositely arranged, the allowing pieces 331 are made of elastic material, when the resin tank conveying device 4 sends the resin tank piece 32 used by the printing device to the lower side of the resin tank recycling bin 33, the pushing device 5 pushes the resin tank piece 32 in the resin tank loading bin 31 upwards, and then pushes the resin tank piece 32 used by the printing device on the resin tank conveying device 4 into the resin tank recycling bin 33, the allowing pieces 331 are deformed by the extrusion of the resin tank piece 32, until the resin tank piece 32 completely enters the resin tank recycling bin, at this time, the resin tank piece 32 is separated from the sidewall of the allowing pieces 331, the allowing pieces 331 restores to the original state and then supports the resin tank piece 32, so that the resin tank piece 32 is in the resin tank recycling bin 33.

[0093] As shown in Figure 2 , the 3D printer further comprises a sensor 9, the sensor 9 is connected with the base frame 1, the sensor 9 is arranged on the side of the resin tank loading bin 31 which is provided with an opening and is electrically connected with the pushing motor 51, and is used to detect whether there is a resin tank piece 32 above the side of the resin tank loading bin 31 which is provided with an opening, when the resin tank conveying device 4 sends the used resin tank piece 32 to the upper side of the resin tank loading bin 31 again after printing is completed, the pushing motor 51 is driven to move to push the unused resin tank piece 32 in the resin tank loading bin 31 upwards.

[0094] As shown in Figure 1 and Figures 5 to 8 , the printing device comprises a component platform 21, a forming platform 22, an abutting piece 64, a self-locking assembly 6, a driving device 7 and a limiting piece 63, the component platform 21 is fixedly connected with the base frame 1, and the forming platform 22 is detachably arranged at one end of the component platform 21. The self-locking assembly 6 comprises a fastener 61 and a connecting rod structure 62, and the fastener 61 is rotatably arranged between the component platform 21 and the forming platform 22.

[0095] As shown in Figure 7 and Figure 8 , a groove is formed at one end of the component platform 21, the forming platform 22 is inserted into the groove, the fastener 61 is a cam structure and is rotatably connected with the component platform 21, the abutting piece 64 is arranged between the fastener 61 and the forming platform 22, and the abutting piece 64 is slidably arranged in a sliding groove on the component platform 21, the fastener 61 is a cam structure, and the fastener 61 has a locking state and an unlocking state.

[0096] As shown in Figure 7As shown, in the locked state, the fastener 61 rotates along the first direction until the abutment 64 below the driving fastener 61 abuts against the surface of the forming platform 22, so that the component platform 21 and the forming platform 22 move synchronously. This ensures that the forming platform 22 does not wobble during 3D printing, preventing any wobble from affecting the printing accuracy of the 3D printer. The first direction is... Figure 7 The direction of rotation is counterclockwise.

[0097] like Figure 8 As shown, in the unlocked state, the fastener 61 rotates in the opposite direction along the first direction, thereby losing pressure on the abutment 64. A spring is fitted onto the outer surface of the abutment 64. One end of the spring near the forming platform 22 remains fixed, while the other end can move towards the forming platform 22 and undergo elastic deformation when pressed by the abutment 64. Therefore, when the abutment 64 loses the pressure of the fastener 61, it can move away from the forming platform 22 under the action of the spring, thus disengaging the abutment 64 from the forming platform 22 and facilitating the removal of the forming platform 22 from the groove of the component platform 21. In other embodiments, the fastener 61 may continue to rotate along the first direction, transitioning from the locked state to the unlocked state.

[0098] like Figures 5 to 8 As shown, the linkage structure 62 includes a fixed rod 621, an action rod 622, and a transmission rod 623. One end of the fixed rod 621 is provided with a U-shaped groove, and one end of the fastener 61 passes through the component platform 21 and is engaged with the U-shaped groove, so that the fixed rod 621 can drive the fastener 61 to rotate. The action rod 622 is rotatably connected to the component platform 21 and can rotate relative to the component platform 21 around the rotation center O. The transmission rod 623 is connected between the fixed rod 621 and the transmission rod 623.

[0099] like Figure 7 and Figure 8 As shown, the actuating rod 622 includes a driving rod and a connecting rod that are connected to each other at the rotation center O. The connecting rod is hinged to the transmission rod 623. A roller is provided at one end of the driving rod. The driving rod and the connecting rod are set at an angle at the connection point.

[0100] like Figure 5 and Figure 6As shown, the driving device 7 comprises a screw rod and a driving motor, the screw rod is fixedly connected with the component platform 21, the inside of the component platform 21 is provided with a threaded hole, the outer surface of the screw rod is provided with an external thread matched with the threaded hole, and the cooperation of the external thread and the threaded hole enables the screw rod to drive the component platform 21 to move up and down by rotating, wherein, in order to prevent the component platform 21 from rotating with the screw rod, the component platform 21 is slidingly connected with the limiting sliding groove on the base frame 1 to limit the component platform 21, the driving motor is fixedly connected with the base frame 1 at the installation end, and the output end of the driving motor is connected with the screw rod to drive the screw rod to rotate.

[0101] As shown in the drawings, Figure 6 , the present application drives the screw rod to rotate by the driving motor, and then drives the component platform 21 to move along the second direction or the reverse direction of the second direction, and then drives the connecting rod structure 62 to move along the second direction or the reverse direction of the second direction, wherein the second direction is the direction indicated by the Y axis in the Figure 6 .

[0102] As shown in the drawings, Figure 5 and Figure 6 , the limiting piece 63 is arranged on one side of the component platform 21 and is fixedly connected with the base frame 1, the limiting piece 63 is provided with a limiting groove, and one end of the driving rod provided with a roller is slidingly arranged in the limiting groove.

[0103] As shown in the drawings, Figure 7 and Figure 8 , the limiting groove comprises a first limiting groove, a second limiting groove and a transition groove, the first limiting groove is arranged along the third direction, the third direction is the direction of the X axis in the Figure 7 , the second limiting groove is arranged along the second direction, the second direction is the direction of the Y axis in the Figure 5 , and the transition groove is arcuately connected between the first limiting groove and the second limiting groove.

[0104] As shown in the drawings, Figure 7 and Figure 8 , when the component platform 21 moves in the reverse direction of the Y axis under the driving of the driving device 7, the component platform 21 drives the connecting rod structure 62 to move, at this time, one end of the driving rod in the action rod 622 is movably arranged in the first limiting groove, and the first limiting groove is arranged along the X axis direction, since the first limiting groove is arranged at an angle with the moving direction of the component platform 21, therefore, one end of the action rod 622 will be limited by the groove wall of the first limiting groove and the groove wall of the transition groove, therefore, the action rod 622 will rotate along the counterclockwise direction around the rotation center O, at this time, the connecting rod rotating together will drive the transmission rod 623 hinged thereto to move in the reverse direction of the X axis, and then drive the fixed rod 621 to rotate counterclockwise at the connection with the fastener 61, and then drive the fastener 61 to rotate, so as to realize the locking state of the fastener 61.

[0105] Meanwhile, when the component platform 21 moves along the Y-axis direction under the drive of the driving device 7, the one end of the driving rod in the second limiting groove still moves along the Y-axis direction until reaching the transition groove to move according to the arc of the transition groove, and then drives the driving rod to rotate clockwise around the rotation center O, and then the connecting rod rotating together with the driving rod drives the transmission rod 623 connected therewith to move towards the X-axis direction, and then pulls the fixed rod 621 to rotate clockwise along the connection with the fastener 61, and then drives the fastener 61 to rotate, so as to realize the transition of the fastener 61 from the locking state to the unlocking state.

[0106] As shown in Figure 2 , Figure 3 , Figures 11 to 15 , the shovel device 8 comprises a driving member 81, a driven member 82 and a shovel assembly, wherein the base frame 1 is provided with a sliding rail, the driving member 81 is in sliding connection with the sliding rail, the driving member 81 is used to be connected with the forming platform 22 to drive the forming platform 22 to move, the shovel assembly is connected with the base frame 1 and is arranged at the lower side of the forming platform 22, the driven member 82 is arranged at the side of the forming platform 22 close to the shovel assembly, and the fastening assembly 85 is connected with the driven member 82.

[0107] As shown in Figures 11 to 13 , the driving member 81 comprises a sliding part 811 and a plug-in part 812 connected with each other, the sliding part 811 is in sliding connection with the sliding rail on the base frame 1, and the plug-in part 812 is arranged vertically to the forming platform 22, when it is needed to move the forming platform 22, the plug-in part 812 is inserted into the groove on the left side of the forming platform 22 to drive the forming platform 22 to move.

[0108] As shown in Figure 11 and Figure 15 , the driven member 82 is in sliding connection with the sliding rail on the base frame 1, and the driven member 82 is provided with a limiting groove, the plug-in part 812 of the driving member 81 is arranged in the limiting groove to drive the driven member 82 to move, and the driven member 82 further comprises a clamping part, the clamping part is two plate members arranged side by side, and the mutually close surfaces of the two plate members are provided with a sliding groove, the sliding groove is adapted with a clamping adapting part arranged on the forming platform 22, the clamping adapting part is a long strip-shaped protrusion arranged on the two sides of the forming platform 22, the forming platform 22 is driven by the driving member 81 to move towards the direction of the shovel assembly until the clamping adapting part is clamped in the sliding groove on the clamping part.

[0109] As shown in Figure 15As shown, the fastening assembly 85 comprises a fastening rod 851 and a connecting rod 852, the fastening rod 851 is arranged on the clamping portion of the driven member and protrudes from both ends of the clamping portion, when the clamping adapter of the forming platform 22 is clamped in the sliding groove on the clamping portion, the fastening rod 851 protruding from the side wall of the clamping portion abuts the upper side of the forming platform 22, and the fastening rod 851 and the clamping portion can rotate relative to each other, so that the clamping adapter can be conveniently fully inserted into the sliding groove on the clamping portion. One end of the connecting rod 852 is arranged in the guide groove on the side wall of the base frame 1, and the other end of the connecting rod 852 is movably connected with the fastening rod 851, when the clamping adapter is fully inserted into the sliding groove on the clamping portion, continue to pull the driving member 81, at this time the driving member 81 pulls the forming platform 22, the driven member 82 and the fastening assembly 85 to move together towards the direction of approaching the blade assembly, at this time the one end of the connecting rod 852 moves along the guide groove on the side wall of the base frame 1, the guide groove has two mutually perpendicular grooves, at this time the one end of the connecting rod 852 moves from the vertical groove to the horizontal groove, because the horizontal groove is higher than the vertical groove, therefore when the connecting rod 852 moves in the horizontal groove, the end of the connecting rod 852 connected with the fastening rod 851 will always press the fastening rod 851, the fastening rod 851 will press the forming platform 22 and the driven member 82, so that the forming platform 22 does not shake, and the side of the fastening rod 851 close to the forming platform 22 is eccentrically arranged, which can prevent the fastening rod 851 from rotating when the driving member 81 pulls the forming platform 22, the driven member 82 and the fastening assembly 85 to move together towards the direction of approaching the blade assembly.

[0110] As shown in Figure 3 and Figure 11 the driving member 81 has an abutting portion 813, the blade assembly further comprises a blade member 83, a second elastic member 84, an abutting adapter 86 and a stop member 87, wherein the blade member 83 is movably connected with the base frame 1 and can move up and down relative to the base frame 1, one end of the second elastic member 84 is fixedly connected with the base frame 1, the other end of the second elastic member 84 is connected with the blade member 83, the abutting adapter 86 is fixedly connected with the blade member 83, and the stop member 87 is fixedly connected with the base frame 1 and is arranged on the side of the blade member 83 close to the forming platform 22.

[0111] When the driving member 81 pulls the forming platform 22, the driven member 82 and the fastening assembly 85 move together towards the direction close to the blade assembly, the abutting part 813 abuts on the abutting adapter 86, the abutting adapter 86 drives the blade member 83 to move away from the forming platform 22, at this time, the blade member 83 is in the state of letting the blade, so that the forming platform 22 and the blade member 83 can be avoided from colliding, and the blade member 83 is prevented from being damaged. At the same time, the blade member 83 compresses the second elastic member 84 so that the second elastic member 84 is elastically deformed. It can be understood that the width of the abutting part 813 is arranged to be in contact with the abutting adapter 86 when the forming platform 22 is close to the blade member 83, and the abutting part 813 is out of contact with the abutting adapter 86 when the forming platform 22 moves above the blade member 83.

[0112] When the forming platform 22 moves above the blade member 83, the abutting adapter 86 is separated from the abutting part 813, the blade member 83 is driven by the second elastic member 84 to move towards the direction close to the forming platform 22, until the blade member 83 abuts on the surface of the stop member 87. It can be understood that the stop member 87 is arranged to be in contact with the blade member 83 when the blade member 83 abuts on the surface of the stop member 87.

[0113] As shown in Figure 3 and Figure 14 , the blade member 83 further comprises a body part 832 and a clamping part 833, the body part 832 is fixedly connected with the abutting adapter 86, the scraping part 831 is arranged in the base frame 1 and is movably connected with the base frame 1, the clamping part 833 is connected between the scraping part 831 and the body part 832, and the angle of the blade member 83 can be adjusted and fixed by unscrewing the screw on the clamping part 833.

[0114] The 3D printer provided by the application has the advantages that Figures 6 to 8 , when working, first, the driving device 7 drives the component platform 21 to move along the reverse direction of the Y axis, Figure 6 , the component platform 21 drives the connecting rod structure 62 to move, then the action rod 622 rotates around the rotation center O in the counterclockwise direction, then the connecting rod drives the transmission rod 623 connected with the connecting rod to move in the reverse direction of the X axis, then the fixed rod 621 rotates in the counterclockwise direction along the connection position of the fastening member 61, and further drives the fastening member 61 to rotate and press the abutting part 64 to abut on the surface of the forming platform 22, so that the fastening member 61 is in the locked state.

[0115] During the printing process, the pushing device 5 pushes the resin tank component 32 in the resin tank loading chamber 31 upward until it is engaged in the engagement bracket 44 in the resin tank conveying device 4. The resin tank conveying device 4 then sends the resin tank component 32 in the engagement bracket 44 into the working area of ​​the printing device. The user mixes the bottled resin and then pumps it into the resin tank component 32 through a peristaltic pump to complete the printing. After the printing is completed, the resin tank conveying device 4 sends the used resin tank component 32 to the bottom of the resin tank recycling chamber 33. The pushing device 5 pushes another unused resin tank component 32 in the resin tank loading chamber 31 upward to abut against the resin tank component 32 in the engagement bracket 44 and pushes it into the resin tank recycling chamber 33. The unused resin tank component 32 is engaged in the engagement bracket 44 in the resin tank conveying device 4. The resin tank conveying device 4 then sends the resin tank component 32 in the engagement bracket 44 into the working area of ​​the printing device, and the operation is repeated.

[0116] After printing is complete, the component platform 21 is first driven by the drive device 7 along its lower edge. Figure 6 The drive rod moves in the Y-axis direction, and then rotates clockwise around the rotation center O. The connecting rod that rotates with the drive rod drives the transmission rod 623, which is hinged to it, to move in the X-axis direction. Then, it pulls the fixing rod 621 to rotate clockwise along the connection with the fastener 61, and then drives the fastener 61 to rotate, so that the fastener 61 loses its pressure on the abutment 64. Under the action of the spring, the abutment 64 moves away from the forming platform 22, thereby realizing the fastener 61 changing from the locked state to the unlocked state, so that the abutment 64 disengages from the forming platform 22, thus making it easy to pull the forming platform 22 out of the groove of the component platform 21.

[0117] Furthermore, during the cleaning of the area below the forming platform 22, the driving component 81 and the driven component 82 are moved to one side of the forming platform 22. After the forming platform 22 rises under the action of external power, the insertion part 812 on the driving component 81 is inserted into the groove on the left side of the forming platform 22. Then, the driving component 81 is moved to drive the forming platform 22 to move until the forming platform 22 enters the locking part of the driven component 82. Subsequently, the driving component 81 pulls the forming platform 22, the driven component 82, and the fastening component 85 together to move towards the blade assembly, thus fastening them. The fastening rod 851 in component 85 rotates to press against the forming platform 22 and the driven member 82. Then, when the forming platform 22 is about to approach the scraper member 83, the abutment part 813 contacts the abutment adapter 86, the scraper member 83 moves down, and the second elastic member 84 undergoes elastic deformation. Then, when the forming platform 22 moves above the scraper member 83, the abutment adapter 86 separates from the abutment part 813, and the scraper member 83 is driven by the second elastic member 84 to move towards the forming platform 22 to begin cleaning the area below the forming platform 22.

[0118] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and can not be enumerated. The obvious changes or variations derived from the above description are still within the protection scope of the present application.

Claims

1. A 3D printer, characterized by, The base frame (1) is connected with the printing device. The resin tank loading bin (31) and the resin tank recycling bin (33) are connected with the base frame (1) and arranged side by side on both sides of the base frame (1). The resin tank conveying device (4) is arranged between the resin tank loading bin (31) and the printing device to convey the resin tank (32) between the printing device and the resin tank loading bin (31). The pushing device (5) is connected with the base frame (1) and arranged on one side of the resin tank loading bin (31) to push the resin tank (32) in the resin tank loading bin (31) to the resin tank conveying device (4) or separate the resin tank (32) used by the printing device from the resin tank conveying device (4). The resin tank conveying device (4) comprises: The conveying motor (41) is connected with the base frame (1). The pulley (42) is connected with the base frame (1) and arranged on one side of the resin tank loading bin (31), and the transmission belt (43) is connected between the pulley (42) and the output end of the conveying motor (41). The clamping frame (44) is fixedly connected with the transmission belt (43), and the clamping frame (44) is internally provided with a through slot, and the resin tank (32) in the resin tank loading bin (31) passes through the through slot to the upper side of the clamping frame (44). The first elastic member (45) is arranged on the side wall of the through slot, and when the resin tank (32) passes through the through slot, the first elastic member (45) has a yielding state of being elastically deformed by being pressed by the resin tank (32). The fixing member (46) is arranged on the through slot to fix the resin tank (32). The pushing device (5) comprises: The pushing motor (51) is connected with the base frame (1).

2. The 3D printer of claim 1, wherein, The pushing plate (52) is slidingly connected with the support column on the base frame (1), and the pushing end of the pushing plate (52) is arranged at the bottom of the resin tank loading bin (31) and abuts against the resin tank (32). One end of the threaded rod (53) is connected with the output end of the pushing motor (51), and the other end of the threaded rod (53) is connected with the threaded hole on the pushing plate (52). The pushing plate (52) is driven by the threaded rod (53) to move relative to the axis direction of the threaded rod (53) to push the resin tank (32) to move in the resin tank loading bin (31). The resin tank recycling bin (33) is provided with at least one pair of yielding pieces (331), the yielding pieces (331) are arranged opposite to each other, the yielding pieces (331) have a far-away state of moving away from each other under the action of external force to form a yielding space, and the yielding space is suitable for placing the resin tank (32). ​ 3. The 3D printer of claim 2, wherein, ​ 4. The 3D printer of claim 1, wherein, The printing device comprises a component platform (21), a forming platform (22) and a self-locking assembly (6), the component platform (21) is connected with the base frame (1), and the forming platform (22) is movably connected with the component platform (21); The self-locking assembly (6) comprises A fastener (61) rotatably arranged between the component platform (21) and the forming platform (22); A connecting rod structure (62) connected with the fastener (61) at one end, and rotatably connected with the component platform (21) at the other end, and configured to be driven by the component platform (21) to rotate the fastener (61); The fastener (61) is rotatable relative to the component platform (21) in the first direction under the action of the connecting rod structure (62), and abuts against the surface of the forming platform (22) until the component platform (21) and the forming platform (22) are kept in a synchronous movement locking state; The fastener (61) is also rotatable relative to the component platform (21) in the first direction or the reverse direction of the first direction under the action of the connecting rod structure (62), and is separated from the surface of the forming platform (22) until the component platform (21) and the forming platform (22) are kept in a movable connection unlocking state, and the fastener (61) is switched between the locking state and the unlocking state under the action of an external force.

5. The 3D printer of claim 4, wherein, The connecting rod structure (62) comprises: A fixed rod (621) connected with the fastener (61) to drive the fastener (61) to move; An action rod (622) rotatably connected with the component platform (21), and rotatable relative to the component platform (21) about a rotation center O; A transmission rod (623) hingedly connected between the action rod (622) and the fixed rod (621); The action rod (622) comprises a driving rod and a connecting rod connected with each other at the rotation center O, the connecting rod is hingedly connected with the transmission rod (623), and the driving rod and the connecting rod are arranged at an included angle at the connection position.

6. The 3D printer of claim 5, wherein, Further comprising: A driving device (7) connected with the component platform (21), and configured to drive the component platform (21) to move in the second direction or the reverse direction of the second direction; A limiting piece (63) arranged on one side of the component platform (21), and provided with a limiting groove, and a driving rod is slidably arranged in the limiting groove; When the component platform (21) is driven by the driving device (7) to move in the second direction or the reverse direction of the second direction, the action rod (622) connected therewith is synchronously moved to drive the driving rod to move in the limiting groove, so that the driving rod drives the connecting rod to rotate.

7. The 3D printer of claim 1, wherein, Further comprising a shoveling device (8), which comprises A driving member (81) is in sliding connection with the slide rail on the base frame (1), and the driving member (81) is configured to be connected with the forming platform (22) to drive the forming platform (22) to move, and the driving member (81) has an abutting portion (813); A spade assembly is connected with the base frame, and the spade assembly is arranged on the lower side of the forming platform (22); The spade assembly comprises a spade member (83) and a second elastic member (84) connected with each other, and in the state that the driving member (81) and the base frame (1) are in sliding connection, the spade member (83) has a letting-off state of moving away from the forming platform (22) under the driving of the abutting portion (813); In the letting-off state, the second elastic member (84) has an elastic force for driving the spade member (83) to move towards the forming platform (22).

8. The 3D printer of claim 7, wherein, The spade member (83) comprises: A scraping member (831) is arranged in the base frame (1) and is in movable connection with the base frame (1); A body portion (832) and an abutting adapter (86) are fixedly connected with the body portion (832), and the scraping member (831) is in movable connection with the body portion (832); A clamping portion (833) is connected between the scraping member (831) and the body portion (832) to adjust the included angle between the plane where the scraping member (831) is located and the plane where the forming platform (22) is located.

9. The 3D printer of claim 8, wherein, The driving member (81) comprises a sliding portion (811) and a plug-in portion (812) connected with each other, the sliding portion (811) is in sliding connection with the slide rail, and the abutting portion is arranged on the side of the sliding portion (811) close to the spade assembly, and the plug-in portion (812) is adapted to be connected with the forming platform (22).

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