Photocuring 3D printer facilitating model taking

Abstract

The photocuring 3D printer comprises a workbench, a rack, a material groove, a lifting driving assembly, a moving seat and a platform assembly, and the lifting driving assembly is used for driving the moving seat to move in the vertical direction; the platform assembly comprises a first driving assembly, a first frame, a second frame and two forming platforms, the two ends of the first frame are fixed to the corresponding forming platforms and the movable base respectively, the second frame comprises a first rod and a second rod, one end of the first rod is hinged to one end of the second rod, and the other end of the first rod is arranged on the movable base; the other end of the second rod is fixed to the corresponding forming platform, and the first driving assembly is used for driving the second rod to rotate. When the multiple models are formed on the two forming platforms correspondingly, the second rod is driven to rotate towards the side away from the first frame, the two forming platforms are separated, the probability that other models are knocked off when the models are taken can be reduced, meanwhile, two persons can take the models synchronously and conveniently, and the model taking efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a light-curing 3D printer that is convenient for taking models. Background Art

[0002] The light-curing 3D printing technology has been favored by the 3D printing industry for its advantages such as high printing accuracy and good surface finish. In recent years, with the advancement of material science, various functional liquid photosensitive resin materials with different functions have been developed, and their printing accuracy and speed have also been greatly improved. Therefore, the light-curing 3D printing technology has received more and more attention.

[0003] The invention patent with announcement number CN107984753A discloses a light-curing 3D printer, including a base, a material tank for storing liquid photosensitive resin, a molding platform and a lifting mechanism, wherein the material tank and the lifting mechanism are respectively arranged on the base, the molding platform is connected to the lifting mechanism, and the molding platform is suspended directly above the material tank. A curing light source is provided in the base, and the curing light source is an array ultraviolet LED backlight panel. A display component is provided on the base, and the display component is a liquid crystal display. The array ultraviolet LED backlight panel is located directly below the liquid crystal display, and the liquid crystal display is located at the bottom of the material tank. A taut FEP film is provided on the material tank.

[0004] The above-mentioned related technical solutions have the following defects: In order to improve the molding efficiency, for relatively small models, more than one model can be molded on the molding platform. If multiple models are molded on the molding platform, the adjacent models are close to each other, which will easily knock off other models that have not been taken; at the same time, in order to further improve the efficiency, when two people take the model together, due to the limited space on the molding platform, the two people will hinder each other, affecting the efficiency of taking the model. Summary of the invention

[0005] In order to reduce the probability of knocking off other models when taking models, and to facilitate two people to take models simultaneously, the present application provides a light-curing 3D printer that is convenient for taking models.

[0006] The light-curing 3D printer provided in this application, which is convenient for taking models, adopts the following technical solutions: A light-curing 3D printer that is convenient for taking models, comprising a workbench, a frame, a material trough, a lifting drive assembly, a moving seat and a platform assembly, wherein the material trough and the frame are both arranged on the workbench, and the lifting drive assembly is arranged on the frame to drive the moving seat to move in a vertical direction; The platform assembly includes a first driving assembly, a first frame, a second frame and two forming platforms, the two forming platforms correspond to the first frame and the second frame respectively, the two ends of the first frame are fixed on the corresponding forming platforms and the moving seat respectively, the second frame includes a first rod and a second rod, one end of the first rod and the second rod are hinged to each other along the horizontal axis direction, the other end of the first rod is arranged on the moving seat, and the other end of the second rod is fixed on the corresponding forming platform, and the first driving assembly is used to drive the second rod to rotate.

[0007] By adopting the above technical solution, when the forming platform moves down to the forming state of the 3D printer printing the model, the first driving component drives the second rod to rotate toward one side of the first frame, so that the two forming platforms are offset from each other, and the two forming platforms are spliced ​​to form a complete table for model forming; if the model is large and formed on the two forming platforms together, when the two forming platforms rise to the material-taking state, the second rod does not need to be rotated, and remains in its original state, and the operator can remove the model from the two forming platforms; if the model is small and formed on two different forming platforms respectively, the two forming platforms rise to the material-taking state, and the second rod rotates toward the side away from the first frame, and the two forming platforms are separated, and one side of the forming platform is inclined away from the other forming platform, which can reduce the probability of knocking off other models when taking the model, and two people can take the models on the two forming platforms respectively, which is convenient for two people to take the model synchronously, reduce mutual interference, and improve the efficiency of taking the model.

[0008] Preferably, it further comprises a flush assembly, wherein a wedge-shaped protrusion is formed on the first rod, a wedge-shaped groove is formed on the movable seat in the vertical direction, and the wedge-shaped protrusion is slidably connected in the wedge-shaped groove in the vertical direction; The first driving assembly includes a control member and a driving member, the driving member is used to drive the second rod to rotate, the control member controls the operation of the driving member by judging the state of the forming platform connected to the second frame, when the model is formed on the two forming platforms respectively and the forming platforms move to the material taking state, the driving member drives the second rod to rotate toward the side away from the first frame, when the model is formed on the two forming platforms at the same time, the driving member drives the second rod to rotate until the two forming platforms are in contact with each other; The leveling component is used to control the sliding of the first rod so that when the two molding platforms move to the molding state, the bottom surfaces of the two molding platforms are always located at the same horizontal height.

[0009] By adopting the above technical solution, when the model is formed on two forming platforms at the same time, since the contact surfaces of the model and the two forming platforms are adhered together at the same time, the bottom surfaces of the two forming platforms are always maintained at the same horizontal height; when multiple models are formed on two forming platforms respectively, the models are adhered to the contact surfaces of the corresponding forming platforms alone, and there is no connection between the two forming platforms, so the forming platform connected to the second frame will move downward under the gravity of the model, and the driving member is required to drive the second rod to rotate toward the side away from the first frame; through the different states of the forming platform connected to the second frame, the control member can help control the driving member.

[0010] Preferably, the flushing assembly includes a flushing block and two first springs, the first rod and the first frame are both bent, the top ends of the first rod and the first frame are both horizontally arranged toward one side of the frame, the frame is provided with two first slide grooves in the vertical direction, the two ends of the flushing block are respectively slidably connected in the two first slide grooves in the vertical direction, the two first springs are respectively located in the two first slide grooves, the two ends of the first spring are respectively abutted against the bottom wall of the first slide groove and the flushing block, and the first spring always drives the flushing block to move upward; The flush block is located directly below the top of the first rod and the first frame, and the flush block is located on the outside of the two forming platforms. The flush block is always located above the material trough. When the forming platform moves down to the forming state, the top of the first rod and the first frame are both in contact with the flush block, and the bottom surfaces of the two forming platforms are at the same horizontal height.

[0011] By adopting the above technical solution, during the downward movement of the moving seat, the forming platform gradually enters the material trough, at which time the two forming platforms are abutted against each other, and at the same time, the top of the first frame abuts against the flush block due to following the movement of the moving seat, and the top of the first rod abuts against the flush block due to the gravity of the second frame and the corresponding forming platform. At this time, the bottom surfaces of the two forming platforms can be maintained at the same horizontal height to form a complete forming table surface.

[0012] Preferably, the driving member comprises a torsion spring, a gear, a rack, a pull rope, a moving block and a rotating rod, wherein the torsion spring is arranged on the rotating shaft between the first rod and the second rod, and the torsion spring is used to drive the second rod to always rotate toward one side of the first frame; The moving block is slidably connected to the moving seat in the horizontal direction, the rotating rod is rotatably connected to the moving block, the rotating axis direction of the rotating rod is parallel to the sliding direction of the moving seat, the rack is fixedly connected to the frame, the gear is coaxially fixedly connected to the rotating rod, the control member is used to control the sliding of the moving block, the gear is fixedly arranged on the frame, one end of the pull rope is fixed to the second rod, and the other end of the pull rope is fixed and wound on the rotating rod; When the molding platform connected to the second rod moves down to the bottom surface below the bottom surface of the other molding platform, the control member controls the moving block to move until the gear and the rack are on the meshing path. When the models are formed on the two molding platforms respectively and the molding platforms move to the material taking state, the gear meshes with the rack, and the driving member drives the second rod to rotate toward the side away from the second frame; When there is no model on the two forming platforms, or the model is formed on the two forming platforms at the same time, the two forming platforms are always in contact with each other, and the bottom surfaces of the two forming platforms are at the same horizontal height; when the models are formed on the two forming platforms respectively, and the forming platforms are between the forming state and the material taking state, the forming platform connected to the second rod moves downward, and the bottom surface is located below the bottom surface of the other forming platform.

[0013] By adopting the above technical solution, the operation process of the entire 3D printer is that when printing a model, the lifting drive assembly drives the moving seat to move downward, at which time the gear is disengaged from the rack, and the second rod is rotated under the action of the torsion spring until the two forming platforms are in contact with each other, and at the same time, the flushing assembly is always in action during the printing process, so that the bottom surfaces of the two forming platforms are at the same horizontal height, and then the model is printed; After the model is printed, there are two situations. One of them is that the printed model is large. At this time, the model needs to be formed on two forming platforms at the same time. Then, when the lifting drive assembly drives the moving seat to move to the material-retrieving position, the first frame and the first rod will first separate from the flush block. At this time, since the contact surface of the model and the two forming platforms are adhered together at the same time, the bottom surfaces of the two forming platforms are always kept at the same horizontal height. The first rod will not drive the moving block to move through the inclined rod. At this time, the positions of the gear and the rack are staggered, and the rack will not drive the gear to rotate, so the second rod will not rotate. At this time, when the forming platform moves up to the material-retrieving position, the operator can remove the model from the two forming platforms; Another situation is that the printed model is small, and the printing position is set in advance, so that multiple small models can be formed on two different forming platforms respectively. Then, when the lifting drive assembly drives the moving seat to move to the material picking position, since the model is separately adhered to the contact surface of the corresponding forming platform, there is no connection between the two forming platforms. Therefore, the forming platform connected to the second frame will move down under the gravity of the model. At this time, the first rod can drive the moving block to move through the inclined rod, so that the gear and the rack are located on the same vertical plane. The rack can drive the gear to rotate, and the gear drives the rotating rod to rotate to reel the pull rope, thereby driving the second rod to rotate toward the side away from the first frame, and the two forming platforms are separated. One of the forming platforms is tilted away from the other forming platform, which can reduce the probability of knocking off other models when taking the model. Two people can take the models on the two forming platforms respectively, which is convenient for two people to take the model synchronously and reduce mutual interference. Finally, when the lifting drive assembly drives the movable seat to move down and back to the forming state, the gear is reversed, and then the gear will be separated from the rack, the second rod is reset under the action of the torsion spring, and then the above operation is repeated.

[0014] Preferably, the control member is an inclined rod, one end of which is fixedly connected to the first rod, an inclined groove is provided on the moving block along the inclined direction of the inclined rod, and the inclined rod is slidably connected in the inclined groove along the inclined direction.

[0015] By adopting the above technical solution, when the first rod moves in the vertical direction, the first rod can drive the inclined rod to move. Since the inclined rod and the moving block slide against each other in the inclined direction, the inclined rod can then drive the moving block to move in the horizontal direction.

[0016] Preferably, the lifting drive assembly includes a motor and a screw, the motor is fixedly arranged on the workbench, the screw is rotatably connected to the frame along the vertical direction, the output shaft of the motor is coaxially fixedly connected to the screw, and the screw is threadedly connected to the moving seat.

[0017] By adopting the above technical solution, the motor drives the lead screw to rotate, and the lead screw is threadedly connected to the moving seat to drive the moving seat to move in the vertical direction.

[0018] The technical effects of the present invention are mainly reflected in the following aspects: 1. The present invention forms the models on two different forming platforms respectively. The two forming platforms rise to the material taking state, drive the second rod to rotate toward the side away from the first frame, and the two forming platforms are separated. One of the forming platforms is tilted away from the other forming platform, which can reduce the probability of knocking off other models when taking the models. Two people can take the models on the two forming platforms respectively, which is convenient for two people to take the models synchronously and reduce the interference between each other. 2. During the downward movement of the movable seat of the present invention, the forming platform gradually enters the material trough. At this time, the two forming platforms are abutted against each other. At the same time, the top of the first frame abuts against the flush block due to following the movement of the movable seat, and the top of the first rod abuts against the flush block due to the gravity of the second frame and the corresponding forming platform. At this time, the bottom surfaces of the two forming platforms can be maintained at the same horizontal height to form a complete forming table surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the present application in which the model is simultaneously formed on two forming platforms and the forming platforms are in a material taking state.

[0020] Figure 2 It is a structural schematic diagram of the two molding platforms in the molding state in the embodiment of the present application.

[0021] Figure 3It is a structural schematic diagram of an embodiment of the present application in which multiple models are respectively formed on two forming platforms and the forming platforms are in a material taking state.

[0022] Figure 4 yes Figure 3 Schematic diagram of the structure from another angle.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. workbench; 11. frame; 111. first slide groove; 12. material trough; 2. lifting drive assembly; 21. screw; 3. moving seat; 31. wedge-shaped groove; 41. first frame; 411. first rod; 4111. wedge-shaped protrusion; 412. second rod; 42. second frame; 43. forming platform; 5. leveling assembly; 51. leveling block; 52. first spring; 6. control member; 61. inclined rod; 7. driving member; 71. gear; 72. rack; 73. pull rope; 74. moving block; 741. inclined groove; 75. rotating rod. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-Figure 4 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0025] The embodiment of the present application discloses a light-curing 3D printer that is convenient for taking models.

[0026] Reference Figure 1 and Figure 2 A light-curing 3D printer for conveniently taking models in this embodiment includes a workbench 1, a frame 11, a material trough 12, a lifting drive component 2, a moving seat 3 and a platform component. The material trough 12 and the frame 11 are both arranged on the workbench 1, and the lifting drive component 2 is arranged on the frame 11 for driving the moving seat 3 to move in a vertical direction.

[0027] Reference Figure 1 and Figure 2 The lifting drive assembly 2 includes a motor and a lead screw 21. The motor is fixedly arranged on the workbench 1. The lead screw 21 is connected to the frame 11 in a vertical direction. The output shaft of the motor is coaxially fixedly connected to the lead screw 21. The lead screw 21 is threadedly connected to the moving seat 3. The motor drives the lead screw 21 to rotate, and the lead screw 21 is threadedly connected to the moving seat 3 to drive the moving seat 3 to move in the vertical direction. A printer body is arranged in the workbench 1 for printing models.

[0028] Reference Figure 1 and Figure 3The platform assembly includes a first driving assembly, a first frame 41, a second frame 42 and two molding platforms 43. The two molding platforms 43 correspond to the first frame 41 and the second frame 42 respectively. The two ends of the first frame 41 are respectively fixed on the corresponding molding platforms 43 and the moving seat 3. The second frame 42 includes a first rod 411 and a second rod 412. One end of the first rod 411 and the second rod 412 are hinged to each other along the horizontal axis direction. The other end of the first rod 411 is set on the moving seat 3, and the other end of the second rod 412 is fixed on the corresponding molding platform 43. The first driving assembly is used to drive the second rod 412 to rotate.

[0029] Reference Figure 1 and Figure 3 , when the molding platform 43 moves down to the molding state of the 3D printer in the printing model, the first driving component drives the second rod 412 to rotate toward the side of the first frame 41, so that the two molding platforms 43 are against each other, and the two molding platforms 43 are spliced ​​to form a complete table for model molding. If the model is large and is molded together on the two molding platforms 43, when the two molding platforms 43 rise to a certain height of the material-taking state, the second rod 412 does not need to rotate, and remains in its original state, and the operator can remove the model from the two molding platforms 43. If the model is small and is molded on two different molding platforms 43 respectively, the two molding platforms 43 rise to the material-taking state, at this time the second rod 412 rotates toward the side away from the first frame 41, and the two molding platforms 43 are separated, and one side of the molding platform 43 is tilted away from the other molding platform 43, which can reduce the probability of knocking off other models when taking the model, and two people can take the models on the two molding platforms 43 respectively, which is convenient for two people to take the model synchronously, reduce mutual interference, and improve the efficiency of taking the model.

[0030] Reference Figure 2 and Figure 4 , also includes a flush component 5, a wedge-shaped protrusion 4111 is formed on the first rod 411, a wedge-shaped groove 31 is opened on the moving seat 3 along the vertical direction, and the wedge-shaped protrusion 4111 is slidably connected in the wedge-shaped groove 31 along the vertical direction.

[0031] Reference Figure 1 and Figure 3 The first driving assembly includes a control member 6 and a driving member 7. The driving member 7 is used to drive the second rod 412 to rotate. The control member 6 controls the operation of the driving member 7 by judging the state of the forming platform 43 connected to the second frame 42. When the models are formed on the two forming platforms 43 respectively and the forming platforms 43 move to the material taking state, the driving member 7 drives the second rod 412 to rotate toward the side away from the first frame 41. When the model is formed on the two forming platforms 43 at the same time, the driving member 7 drives the second rod 412 to rotate until the two forming platforms 43 are always in contact with each other.

[0032] Reference Figure 2 The leveling component 5 is used to control the sliding of the first rod 411 so that when the two molding platforms 43 move to the molding state, the bottom surfaces of the two molding platforms 43 are always at the same horizontal height.

[0033] Reference Figure 1 and Figure 3 When the model is formed on two forming platforms 43 at the same time, since the contact surfaces of the model and the two forming platforms 43 are adhered together at the same time, the bottom surfaces of the two forming platforms 43 are always maintained at the same horizontal height; when multiple models are formed on two forming platforms 43 respectively, the models are adhered to the contact surfaces of the corresponding forming platforms 43 alone, and there is no connection between the two forming platforms 43, so the forming platform 43 connected to the second frame 42 will move downward under the action of the gravity of the model. At this time, the driving member 7 is required to drive the second rod 412 to rotate toward the side away from the first frame 41; through the different states of the forming platform 43 connected to the second frame 42, the control member 6 can help control the driving member 7.

[0034] Reference Figure 1 and Figure 2 The flushing assembly 5 includes a flushing block 51 and two first springs 52. The first rod 411 and the first frame 41 are both bent. The top ends of the first rod 411 and the first frame 41 are horizontally arranged toward one side of the frame 11. Two first slide grooves 111 are provided on the frame 11 in the vertical direction. The two ends of the flushing block 51 are respectively slidably connected in the two first slide grooves 111 in the vertical direction. The two first springs 52 are respectively located in the two first slide grooves 111. The two ends of the first spring 52 are respectively abutted against the bottom wall of the first slide groove 111 and the flushing block 51. The first spring 52 always drives the flushing block 51 to move upward.

[0035] Reference Figure 1 and Figure 2 The flush block 51 is located directly below the top of the first rod 411 and the first frame 41, and the flush block 51 is located on the outside of the two forming platforms 43. The flush block 51 is always located above the material trough 12. When the forming platform 43 moves down to the forming state, the top of the first rod 411 and the first frame 41 are both in contact with the flush block 51, and the bottom surfaces of the two forming platforms 43 are at the same horizontal height.

[0036] Reference Figure 1 and Figure 2During the downward movement of the movable seat 3, the forming platform 43 gradually enters the material trough 12. At this time, the two forming platforms 43 are abutted against each other. At the same time, the top of the first frame 41 will abut against the flush block 51 due to the movement of the movable seat 3, and the top of the first rod 411 is abutted against the flush block 51 due to the gravity of the second frame 42 and the corresponding forming platform 43. At this time, the bottom surfaces of the two forming platforms 43 can be maintained at the same horizontal height to form a complete forming table surface.

[0037] Reference Figure 3 and Figure 4 The driving member 7 includes a torsion spring, a gear 71, a rack 72, a pull rope 73, a moving block 74 and a rotating rod 75. The torsion spring is arranged on the rotating shaft between the first rod 411 and the second rod 412. The torsion spring is used to drive the second rod 412 to always rotate toward the first frame 41 side.

[0038] Reference Figure 3 and Figure 4 The moving block 74 is connected to the moving seat 3 in a sliding manner in the horizontal direction, the rotating rod 75 is rotatably connected to the moving block 74, the rack 72 is vertically fixedly connected to the frame 11, and the axial direction is parallel to the sliding direction of the moving seat 3, the gear 71 is coaxially fixedly connected to the rotating rod 75, the control member 6 is used to control the sliding of the moving block 74, the gear 71 is fixedly set on the frame 11, one end of the pull rope 73 is fixed on the second rod 412, and the other end of the pull rope 73 is fixed and wound around the rotating rod 75.

[0039] Reference Figure 3 and Figure 4 When the molding platform 43 connected to the second rod 412 moves down to the bottom surface below the bottom surface of the other molding platform 43, the control member 6 controls the moving block 74 to move until the gear 71 and the rack 72 are on the meshing path. When the models are formed on the two molding platforms 43 respectively and the molding platforms 43 move to the material taking state, the gear 71 meshes with the rack 72, and the driving member 7 drives the second rod 412 to rotate toward the side away from the second frame 42.

[0040] Reference Figure 1 When there is no model on the two molding platforms 43, or the model is molded on the two molding platforms 43 at the same time, the two molding platforms 43 are always in contact with each other, and the bottom surfaces of the two molding platforms 43 are at the same level. Figure 3 When the models are formed on the two forming platforms 43 respectively, and the forming platforms 43 are located between the forming state and the material taking state, the forming platform 43 connected to the second rod 412 moves downward, and the bottom surface is located below the bottom surface of the other forming platform 43.

[0041] Reference Figure 3 and Figure 4The control member 6 is an inclined rod 61, one end of which is fixedly connected to the first rod 411, and an inclined groove 741 is provided on the moving block 74 along the inclined direction of the inclined rod 61, and the inclined rod 61 is slidably connected in the inclined groove 741 along the inclined direction.

[0042] Reference Figure 3 and Figure 4 When the first rod 411 moves in the vertical direction, the first rod 411 can drive the inclined rod 61 to move. Since the inclined rod 61 and the moving block 74 slide against each other in the inclined direction, the inclined rod 61 can then drive the moving block 74 to move in the horizontal direction.

[0043] Reference Figure 2 The operation process of the entire 3D printer is that when printing a model, the lifting drive component 2 drives the moving seat 3 to move downward. At this time, the gear 71 disengages from the rack 72, and the second rod 412 rotates under the action of the torsion spring until the two forming platforms 43 abut against each other. At the same time, the leveling component 5 always works during the printing process, so that the bottom surfaces of the two forming platforms 43 are at the same horizontal height to print the model.

[0044] Reference Figure 1 After the model is printed, there are two situations. One of the situations is that the printed model is large. At this time, the model needs to be formed on two forming platforms 43 at the same time. Then, during the process of the lifting drive assembly 2 driving the moving seat 3 to move up to the material-collecting position, the first frame 41 and the first rod 411 will first separate from the flush block 51. At this time, since the contact surfaces of the model and the two forming platforms 43 are adhered together at the same time, the bottom surfaces of the two forming platforms 43 are always kept at the same horizontal height. The first rod 411 will not drive the moving block 74 to move through the inclined rod 61. At this time, the positions of the gear 71 and the rack 72 are staggered, and the rack 72 will not drive the gear 71 to rotate, so the second rod 412 will not rotate. At this time, when the forming platform 43 moves up to the material-collecting position, the operator can remove the model from the two forming platforms 43.

[0045] Reference Figure 3 and Figure 4In another case, the printed model is small, and the printing position is set in advance, so that multiple small models can be formed on two different forming platforms 43 respectively. Then, when the lifting drive assembly 2 drives the moving seat 3 to move up to the material picking position, since the model is separately adhered to the contact surface of the corresponding forming platform 43, there is no connection between the two forming platforms 43, so at this time, the forming platform 43 connected to the second frame 42 will move down under the gravity of the model. At this time, the first rod 411 can drive the moving block 74 to move through the inclined rod 61, so that the gear 71 and the rack 72 are located on the same vertical plane, the rack 72 can drive the gear 71 to rotate, and the gear 71 drives the rotating rod 75 to rotate to reel the pull rope 73, thereby driving the second rod 412 to rotate toward the side away from the first frame 41, and the two forming platforms 43 are separated, and one side of the forming platform 43 is inclined away from the other forming platform 43, which can reduce the probability of knocking off other models when taking the model. Two people can take the models on the two forming platforms 43 respectively, which is convenient for the two people to take the model synchronously and reduce interference with each other.

[0046] Reference Figure 2 Finally, when the lifting drive assembly 2 drives the movable seat 3 to move down and return to the forming state, the gear 71 reverses, and then the gear 71 disengages from the rack 72, the second rod 412 is reset under the action of the torsion spring, and then the above operation is repeated.

[0047] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A light-curing 3D printer that is convenient for taking models, characterized by: The machine comprises a workbench (1), a frame (11), a material trough (12), a lifting drive assembly (2), a movable seat (3) and a platform assembly, wherein the material trough (12) and the frame (11) are both arranged on the workbench (1), and the lifting drive assembly (2) is arranged on the frame (11) and is used to drive the movable seat (3) to move in a vertical direction; The platform assembly comprises a first driving assembly, a first frame (41), a second frame (42) and two molding platforms (43), wherein the two molding platforms (43) correspond to the first frame (41) and the second frame (42) respectively, wherein two ends of the first frame (41) are respectively fixed on the corresponding molding platform (43) and the movable seat (3), wherein the second frame (42) comprises a first rod (411) and a second rod (412), wherein one end of the first rod (411) and the second rod (412) are hinged to each other along a horizontal axis direction, the other end of the first rod (411) is arranged on the movable seat (3), and the other end of the second rod (412) is fixed on the corresponding molding platform (43), and the first driving assembly is used for driving the second rod (412) to rotate.

2. A light-curing 3D printer that is convenient for taking models according to claim 1, characterized in that: It also includes a flushing component (5), wherein a wedge-shaped protrusion (4111) is formed on the first rod (411), a wedge-shaped groove (31) is formed on the movable seat (3) in the vertical direction, and the wedge-shaped protrusion (4111) is slidably connected in the wedge-shaped groove (31) in the vertical direction; The first driving component comprises a control member (6) and a driving member (7), wherein the driving member (7) is used to drive the second rod (412) to rotate, and the control member (6) controls the operation of the driving member (7) by judging the state of a molding platform (43) connected to the second frame (42); when the models are molded on the two molding platforms (43) respectively and the molding platforms (43) move to a material taking state, the driving member (7) drives the second rod (412) to rotate toward a side away from the first frame (41); when the models are molded on the two molding platforms (43) at the same time, the driving member (7) drives the second rod (412) to rotate until the two molding platforms (43) are in contact with each other; The leveling component (5) is used to control the sliding of the first rod (411) so that when the two molding platforms (43) move to a molding state, the bottom surfaces of the two molding platforms (43) are always located at the same horizontal height.

3. A light-curing 3D printer that is convenient for taking models according to claim 2, characterized in that: The flushing assembly (5) comprises a flushing block (51) and two first springs (52), the first rod (411) and the first frame (41) are both bent, the top ends of the first rod (411) and the first frame (41) are both horizontally arranged toward one side of the frame (11), the frame (11) is provided with two first slide grooves (111) in a vertical direction, the two ends of the flushing block (51) are respectively slidably connected in the two first slide grooves (111) in a vertical direction, the two first springs (52) are respectively located in the two first slide grooves (111), the two ends of the first spring (52) are respectively abutted against the bottom wall of the first slide groove (111) and the flushing block (51), and the first spring (52) always drives the flushing block (51) to move upward; The flush block (51) is located directly below the top of the first rod (411) and the first frame (41). The flush block (51) is located outside the two molding platforms (43). The flush block (51) is always located above the material trough (12). When the molding platform (43) moves down to a molding state, the tops of the first rod (411) and the first frame (41) are both in contact with the flush block (51), and the bottom surfaces of the two molding platforms (43) are located at the same horizontal height.

4. A light-curing 3D printer that is convenient for taking models according to claim 2, characterized in that: The driving member (7) comprises a torsion spring, a gear (71), a rack (72), a pull rope (73), a moving block (74) and a rotating rod (75); the torsion spring is arranged on a rotating shaft between the first rod (411) and the second rod (412); the torsion spring is used to drive the second rod (412) to rotate toward the first frame (41) at all times; The moving block (74) is connected to the moving seat (3) in a sliding manner in a horizontal direction, the rotating rod (75) is connected to the moving block (74) in a rotational manner, the rotating axis direction of the rotating rod (75) is parallel to the sliding direction of the moving seat (3), the rack (72) is fixedly connected to the frame (11), the gear (71) is coaxially fixedly connected to the rotating rod (75), the control member (6) is used to control the sliding of the moving block (74), the gear (71) is fixedly arranged on the frame (11), one end of the pull rope (73) is fixed to the second rod (412), and the other end of the pull rope (73) is fixed to and wound around the rotating rod (75); When the molding platform (43) connected to the second rod (412) moves down to the bottom surface below the bottom surface of the other molding platform (43), the control member (6) controls the moving block (74) to move to the point where the gear (71) and the rack (72) are on a meshing path; when the models are formed on the two molding platforms (43) respectively, and the molding platforms (43) move to a material taking state, the gear (71) meshes with the rack (72), and the driving member (7) drives the second rod (412) to rotate toward a side away from the second frame (42); When there is no model on the two forming platforms (43), or the model is formed on the two forming platforms (43) at the same time, the two forming platforms (43) are always in contact with each other, and the bottom surfaces of the two forming platforms (43) are located at the same horizontal height; when the model is formed on the two forming platforms (43) respectively, and the forming platforms (43) are located between the forming state and the material taking state, the forming platform (43) connected to the second rod (412) moves downward, and the bottom surface is located below the bottom surface of the other forming platform (43).

5. The light-curing 3D printer that is convenient for taking models according to claim 4, characterized in that: The control member (6) is an inclined rod (61), one end of which is fixedly connected to the first rod (411), and an inclined groove (741) is provided on the moving block (74) along the inclined direction of the inclined rod (61), and the inclined rod (61) is slidably connected in the inclined groove (741) along the inclined direction.

6. The light-curing 3D printer that is convenient for taking models according to claim 1, characterized in that: The lifting drive assembly (2) comprises a motor and a lead screw (21), wherein the motor is fixedly arranged on the workbench (1), the lead screw (21) is rotatably connected to the frame (11) in the vertical direction, the output shaft of the motor is coaxially fixedly connected to the lead screw (21), and the lead screw (21) is threadedly connected to the moving seat (3).

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