Photocuring material 3D printing forming equipment

Abstract

The invention relates to the technical field of photocuring 3D printing, and provides photocuring material 3D printing forming equipment which comprises a forming base, a forming top seat, a side mounting seat, a first covering plate, a second covering plate, a third covering plate and a driving assembly. And the forming base moves in the direction close to or away from the forming base, and a resin groove is formed in the top of the forming base and used for storing resin. The driving assembly is arranged to be in transmission connection with the forming top base and the first covering plate, so that when the forming top base is lifted to take a part, the first covering plate can synchronously move towards the resin groove and is matched with the second covering plate and the third covering plate to complete covering treatment on the resin groove, and the forming part can be conveniently taken out through the second covering plate and the third covering plate. And the resin tank is automatically covered, so that external impurities are prevented from entering the resin tank to pollute the stored resin during the taking period, and the use is convenient.

Description

Technical Field

[0001] This invention relates to the field of photopolymer 3D printing technology, and more particularly to a photopolymer material 3D printing molding device. Background Technology

[0002] The basic principle of existing photopolymer 3D printing equipment is "photoinduced polymerization." When light of a specific wavelength shines on liquid photosensitive resin, the photoinitiator in the resin absorbs the light energy and generates free radicals or cations, thereby initiating a chain reaction in the monomer / prepolymer, transforming it from a liquid to a solid state in a very short time. Compared to traditional 3D printers, photopolymer 3D printing can print extremely fine features and smooth surfaces, making it the preferred choice for display models and jewelry casting.

[0003] In the specific implementation of photocurable material 3D printing, a molding base and a molding platform adapted to the molding base are set up. The molding base stores the resin to be cured. The molding platform is inserted into the resin tank, and the resin is irradiated with a molding ultraviolet light source set in the resin tank according to a specific shape, so that the resin is cured and formed on the molding platform, thus completing the photocurable material 3D printing process.

[0004] During photopolymer 3D printing, the forming platform needs to be gradually raised until the molded part is completely detached from the resin tank, completing the photopolymer 3D printing process. However, when removing the molded part, the printing equipment needs to be opened and the part removed, exposing the resin stored in the resin tank. Existing photopolymer 3D printing equipment is not convenient for simultaneously closing the resin tank while raising the forming platform for part removal, which easily leads to resin contamination during part removal and reduces the quality of subsequent 3D printed parts. Therefore, this solution proposes a photopolymer 3D printing equipment to address the above problems. Summary of the Invention

[0005] In view of this, the present invention proposes a photopolymer material 3D printing molding equipment to solve the technical problem that existing photopolymer material 3D printing molding equipment is inconvenient to simultaneously cover the resin tank during the part removal process when lifting the molding platform, which easily causes resin contamination during part removal and thus reduces the quality of subsequent 3D printed parts.

[0006] The technical solution of this invention is implemented as follows: This invention provides a 3D printing molding device for photopolymer materials, including a molding base, a molding top seat, a side mounting seat, a first cover plate, a second cover plate, a third cover plate, and a drive assembly, wherein,

[0007] A molding top seat is slidably disposed above the molding base and can move toward or away from the molding base. A resin tank is provided on the top of the molding base for storing resin. A molding light source is disposed inside the resin tank. A molding platform is provided at the bottom of the molding top seat. The molding platform is used to slide into the inside of the resin tank and the resin molded part is solidified inside the molding platform.

[0008] A side mounting base is provided on one side of the molding base, and a connection hole is provided on the side mounting base. The first cover plate is slidably inserted through the inner side of the connection hole. The first cover plate is used to slide to cover the top of the resin tank.

[0009] The second cover plate is rotatably disposed at the end of the first cover plate, and the third cover plate is rotatably disposed at the end of the second cover plate away from the first cover plate. Both the ends of the first cover plate and the third cover plate are provided with cylindrical protrusions, and both ends of the second cover plate are provided with connecting grooves. The connecting grooves are semi-circular grooves, and the cylindrical protrusions are rotatably disposed inside the connecting grooves. The bottom of the first cover plate is provided with a first clearance groove, and the top of the third cover plate is provided with a second clearance groove. Both the first clearance groove and the second clearance groove are used for the end wall of the second cover plate to be inserted.

[0010] The driving assembly is disposed between the molding top seat and the first cover plate. When the molding top seat slides upward, the first cover plate slides towards the molding base.

[0011] Based on the above technical solutions, preferably, the end wall of the third cover plate away from the second cover plate is an inclined wall.

[0012] Based on the above technical solutions, preferably, the number of side mounting seats is two, and the two side mounting seats are respectively arranged on opposite sides of the molded base. The end of the first cover plate on one side is provided with an insertion protrusion, and the end of the first cover plate on the other side is provided with an insertion groove for the insertion protrusion to be inserted.

[0013] Based on the above technical solutions, preferably, the cylindrical protrusion is provided with a transition groove, and the interior of the connecting groove is provided with a transition ring that is rotatably connected to the transition groove. The shapes of the transition groove and the transition ring are adapted to each other, and the transition ring is a circular ring.

[0014] Based on the above technical solutions, preferably, the drive assembly includes a first drive shaft, a second drive shaft, a drive toothed roller, and a drive belt, wherein,

[0015] Both the first drive shaft and the second drive shaft are rotatably disposed on one side of the side mounting base, with the second drive shaft located below the first cover plate;

[0016] A drive toothed roller is mounted on the second drive shaft. The first cover plate, the second cover plate, and the third cover plate are all provided with toothed grooves, and the drive toothed roller meshes with the toothed grooves.

[0017] A drive belt is connected to the first drive shaft and the second drive shaft. The drive belt includes an inner connecting section and an outer connecting section. The outer connecting section is located on the side of the inner connecting section away from the side mounting seat. The molded top seat is fixedly connected to the outer connecting section.

[0018] Based on the above technical solutions, a preferred embodiment also includes a sliding joint, wherein...

[0019] Two drive toothed rollers are rotatably disposed on one side of the side mounting base, and the two drive toothed rollers are respectively rotatably disposed on opposite sides of the first cover plate;

[0020] Both sides of the side mounting base are provided with arc-shaped protrusions. The sliding seat is sleeved on the arc-shaped protrusions, slidably connected to the arc-shaped protrusions, and fixedly connected to the outer connecting section and the molded top seat.

[0021] Based on the above technical solutions, preferably, the sliding joint is provided with a mounting bracket, the mounting bracket is connected to a connecting seat that is opposite to the outer connecting section, the outer connecting section is provided with a plurality of positioning holes, the connecting seat is provided with a first bolt hole that matches the positioning holes, and a second bolt hole that communicates with the mounting bracket is provided between the connecting seat and the mounting bracket.

[0022] Based on the above technical solutions, preferably, it also includes a sealing plate, an adjusting convex plate, and a spring, wherein,

[0023] The first cover plate and the third cover plate are each provided with a first assembly groove, and the second cover plate is provided with a second assembly groove at both ends, and the second assembly groove is connected to the first assembly groove.

[0024] A sealing plate is slidably connected to the inner side of the first or second assembly groove. A first mounting groove is provided on the sealing plate. The regulating protrusion is rotatably disposed inside the first mounting groove and located in the middle of the first mounting groove. The regulating protrusion protrudes from the first mounting groove.

[0025] A connection gap is formed between the side mounting base and the molding base, and the length of the connection gap is greater than the length of the regulating protrusion.

[0026] A spring is disposed between the regulating convex plate and the sealing plate to reset the rotational position of the regulating convex plate.

[0027] Based on the above technical solutions, a preferred embodiment also includes a coupling shaft, wherein...

[0028] The first mounting groove has a second mounting groove inside. The connecting shaft is fixedly connected to the adjusting convex plate and is located inside the second mounting groove and rotatably connected to the sealing plate. The spring is sleeved on the connecting shaft and is fixedly connected to the adjusting convex plate and the sealing plate.

[0029] Based on the above technical solutions, preferably, the first cover plate, the second cover plate and the third cover plate are all provided with water guiding grooves, and the third cover plate is provided with a drainage groove that communicates with the water guiding grooves, and the drainage groove is connected to the end of the third cover plate.

[0030] The photopolymer material 3D printing equipment of the present invention has the following advantages over the prior art:

[0031] (1) The photopolymer material 3D printing molding equipment of this application uses a drive assembly to drive and connect the molding top seat and the first cover plate. When the molding top seat is lifted to pick up the part, the first cover plate can move synchronously onto the resin tank and cooperate with the second and third cover plates to complete the sealing process of the resin tank. This facilitates the automatic sealing process of the resin tank when picking up the molded part, preventing external impurities from entering the interior of the resin tank and contaminating the stored resin during the part picking process, and making it convenient to use. The cover plate of the resin tank includes a first cover plate, a second cover plate and a third cover plate, and the first cover plate, the second cover plate and the third cover plate are rotatably connected to each other. When the first cover plate is removed from the resin tank, the second cover plate and the third cover plate can be folded and stored on one side of the side mounting seat, reducing the horizontal area occupied by the cover plate of the equipment of this application and facilitating the setting process of the equipment of this application. By setting cylindrical protrusions at the ends of the first and third cover plates, and connecting grooves that fit with the cylindrical protrusions at both ends of the second cover plate, the sealing connection between the cylindrical protrusions and the connecting grooves can be maintained when the cylindrical protrusions rotate along the connecting grooves, thereby improving the sealing performance of the second and third cover plates when they rotate. By setting the first and second clearance grooves, the second cover plate can rotate at a large angle, making it convenient to use.

[0032] (2) By setting a drive toothed roller rotatably connected below the first cover plate, the cover plate can be driven while the water guiding structure above the cover plate is designed. By setting a drive belt to drive the first drive shaft and the second drive shaft, the drive belt can rotate around the second drive shaft while the molding platform is in contact with the first cover plate. By setting the molding top seat to be connected to the outer connecting section, the drive toothed roller can drive the cover plate to close on the resin tank when the outer connecting section drives the molding top seat to move upward, which is convenient to use.

[0033] (3) By setting a sealing plate, during the period when the cover plate covers the resin tank, the outer wall of the side mounting seat can abut against the regulating convex plate, so that the regulating convex plate, through the spring, can move the sealing plate outward to abut against the tank wall. Thus, during the period when the cover plate covers the resin tank, the sealing plate can cover the cylindrical protrusion and its connecting seam in the height direction, thereby increasing the sealing performance of the connection between each cover plate through the shielding effect. During the period when the cover plate is removed from the resin tank, the inner wall of the side mounting seat abuts against the regulating convex plate, the regulating convex plate rotates to the other side, and drives the sealing plate to slide inward until it is removed from the cylindrical protrusion, so that each cover plate can rotate relative to each other, which is convenient for folding and storage. By setting the length of the connecting gap to be greater than the length of the sealing plate, the sealing plate can rotate to be located at the connecting gap, which is convenient for the inner wall of the side mounting seat to abut against the regulating convex plate. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a perspective view of the photopolymer material 3D printing molding equipment of the present invention;

[0036] Figure 2 This is a right-side view of the photopolymer material 3D printing molding equipment of the present invention;

[0037] Figure 3 The present invention relates to a photopolymer material 3D printing molding device. Figure 2 A cross-sectional view of the structure at point AA shown.

[0038] Figure 4 This is a cross-sectional schematic diagram of the connection structure at the sealing plate of the photocurable material 3D printing molding equipment of the present invention;

[0039] Figure 5 This is a front view of the photopolymer material 3D printing molding equipment of the present invention;

[0040] Figure 6 This is a schematic diagram of the state of the photocurable material 3D printing molding equipment of the present invention when the resin tank is closed;

[0041] Figure 7 The present invention relates to a photopolymer material 3D printing molding device. Figure 5 A cross-sectional view of the structure at point BB shown.

[0042] Figure 8 This is a schematic diagram showing the connection method between the first cover plate and the second cover plate of the photocurable material 3D printing molding equipment of the present invention.

[0043] Figure 9 The present invention relates to a photopolymer material 3D printing molding device. Figure 8 A bottom-view perspective of the structure shown.

[0044] Figure 10 This is a three-dimensional schematic diagram of the sliding joint structure of the photocurable material 3D printing molding equipment of the present invention.

[0045] In the diagram: 11. Molding base; 111. Resin tank; 112. Molded light source component; 12. Molded top seat; 121. Molding platform; 2. Side mounting seat; 21. Connecting hole; 22. Connecting gap; 23. Arc-shaped protrusion; 31. First cover plate; 311. First clearance groove; 312. Insertion protrusion; 313. Insertion groove; 32. Second cover plate; 321. Connecting groove; 322. Second assembly groove; 33. Third cover plate; 331. Second clearance groove; 34. Cylindrical protrusion; 341. Adapter groove; 35. Adapter ring; 36. Toothed groove; 37. 38. Water guide channel; 39. Drainage channel; 4. First assembly slot; 4. Drive assembly; 41. First drive shaft; 42. Second drive shaft; 43. Drive toothed roller; 44. Drive belt; 441. Inner connecting section; 442. Outer connecting section; 443. Positioning hole; 5. Sliding seat; 51. Mounting support; 52. Connecting seat; 521. First bolt hole; 522. Second bolt hole; 6. Dual-axis motor; 71. Sealing plate; 711. First mounting slot; 712. Second mounting slot; 72. Adjustment convex plate; 73. Connecting shaft; 74. Spring; 8. Shaft fixing component. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0047] like Figures 1-10 As shown, the photopolymer material 3D printing molding equipment of the present invention includes a molding base 11, a molding top seat 12, a side mounting seat 2, a first cover plate 31, a second cover plate 32, a third cover plate 33, and a drive assembly 4. The molding top seat 12 is slidably disposed above the molding base 11 and moves towards or away from the molding base 11. A resin tank 111 is provided at the top of the molding base 11 for storing resin. A molding light source 112 is disposed inside the resin tank 111. A molding platform 121 is provided at the bottom of the molding top seat 12. The molding platform 121 is slidably inserted into the resin tank 111, and the resin-molded part is cured inside the molding platform 121. The side mounting seat 2 is disposed on one side of the molding base 11 and has a connecting hole 21. The first cover plate 31 is slidably inserted through the connecting hole 21. The first cover plate 31 is used for... The first cover plate 31 is rotatably disposed at the end of the first cover plate 31, and the second cover plate 33 is rotatably disposed at the end of the second cover plate 32 away from the first cover plate 31. The ends of the first cover plate 31 and the third cover plate 33 are provided with cylindrical protrusions 34, and the two ends of the second cover plate 32 are provided with connecting grooves 321. The connecting grooves 321 are semi-circular grooves. The cylindrical protrusions 34 are rotatably disposed inside the connecting grooves 321. The first cover plate 31 is provided with a first clearance groove 311 below, and the third cover plate 33 is provided with a second clearance groove 331 at the top. The first clearance groove 311 and the second clearance groove 331 are both used for the end wall of the second cover plate 32 to be inserted. The driving assembly 4 is driven between the molding top seat 12 and the first cover plate 31. When the molding top seat 12 slides upward, the first cover plate 31 slides towards the molding base 11.

[0048] In practice, the resin tank 111 stores resin to be molded. The resin of the molded light source 112 is cured and molded on the molding platform 121. When the molding top seat 12 is raised to remove the molded part, the cured molded part is molded inside the molding platform 121. The molding platform 121 abuts against the first cover plate 31, so that the first cover plate 31 cannot be moved. After the first cover plate 31 moves to the point of disengaging from the resin tank 111, the drive assembly 4 drives the first cover plate 31 to move again. At this time, the side mounting seat 2 first abuts against the second cover plate 32, causing the second cover plate 32 to change from a vertical state to a horizontal state, and the third cover plate 33 to change from a horizontal state to a vertical state. The first cover plate 31 continues to move, and the second cover plate 32 covers the resin tank 111. The side mounting seat 2 then abuts against the third cover plate 33, causing the third cover plate 33 to change to a horizontal state. The first cover plate 31 continues to move until the third cover plate 33 covers the resin tank 111. The first cover plate 31, together with the second cover plate 32 and the third cover plate 33, completes the complete covering process of the resin tank 111.

[0049] The photopolymer material 3D printing molding equipment of this application uses a drive component 4 to drive and connect the molding top seat 12 and the first cover plate 31. When the molding top seat 12 is lifted to pick up the part, the first cover plate 31 can move synchronously onto the resin tank 111 and cooperate with the second cover plate 32 and the third cover plate 33 to complete the covering process of the resin tank 111. This facilitates the automatic covering process of the resin tank 111 when picking up the molded part, preventing external impurities from entering the interior of the resin tank 111 and contaminating the stored resin during the part picking process, and making it convenient to use. The resin tank 111 is equipped with a cover plate comprising a first cover plate 31, a second cover plate 32, and a third cover plate 33, which are rotatably connected to each other. This allows the second cover plate 32 and the third cover plate 33 to be folded and stored on one side of the side mounting base 2 when the first cover plate 31 is detached from the resin tank 111. This reduces the horizontal area occupied by the cover plates of the device and facilitates the installation of the device.

[0050] By providing cylindrical protrusions 34 at the ends of the first cover plate 31 and the third cover plate 33, and by providing connecting grooves 321 at both ends of the second cover plate 32 that fit with the cylindrical protrusions 34, the cylindrical protrusions 34 can maintain a sealed connection with the connecting grooves 321 when they rotate along the connecting grooves 321, thereby improving the sealing performance of the second cover plate 32 and the third cover plate 33 when they rotate. By providing the first clearance groove 311 and the second clearance groove 331, the second cover plate 32 can rotate at a large angle, which is convenient for use.

[0051] In a preferred embodiment, the end wall of the third cover plate 33 away from the second cover plate 32 is an inclined wall.

[0052] This design allows the end of the third cover plate 33 to rotate outward under the action of its inclined end wall when it abuts against the assembly platform, so that the second cover plate 32 and the third cover plate 33 can be folded and stored together.

[0053] In a preferred embodiment, there are two side mounting seats 2, and the two side mounting seats 2 are respectively arranged on opposite sides of the molded base 11. The end of the first cover plate 31 on one side is provided with a plugging protrusion 312, and the end of the first cover plate 31 on the other side is provided with a plugging groove 313 for the plugging protrusion 312 to be plugged into.

[0054] This design allows for a smaller design area for the single-sided cover plate, facilitating the setup and processing of the molding equipment in this application.

[0055] In a preferred embodiment, the cylindrical protrusion 34 is provided with a transition groove 341, and the interior of the connecting groove 321 is provided with a transition ring 35 that is rotatably connected to the transition groove 341. The shapes of the transition groove 341 and the transition ring 35 are matched, and the transition ring 35 is a circular ring.

[0056] In practice, the rotatable connection between the various cover plates is achieved through the rotatable connection of the adapter ring 35. By setting both the adapter ring 35 and the adapter groove 341 to be circular, the adapter ring 35 can always maintain a sealed connection with the adapter groove 341 when rotating, thereby improving the sealing performance of the connection between the various cover plates.

[0057] In a preferred embodiment, the drive assembly 4 includes a first drive shaft 41, a second drive shaft 42, a drive toothed roller 43, and a drive belt 44. The first drive shaft 41 and the second drive shaft 42 are both rotatably disposed on one side of the side mounting base 2, with the second drive shaft 42 located below the first cover plate 31. The drive toothed roller 43 is disposed on the second drive shaft 42, and the first cover plate 31, the second cover plate 32, and the third cover plate 33 are all provided with toothed grooves 36, which mesh with the drive toothed roller 43. The drive belt 44 is connected to the first drive shaft 41 and the second drive shaft 42 in a transmission manner. The drive belt 44 includes an inner connecting section 441 and an outer connecting section 442, with the outer connecting section 442 located on the side of the inner connecting section 441 away from the side mounting base 2. The forming top seat 12 is fixedly connected to the outer connecting section 442.

[0058] In specific implementation, a dual-axis motor 6 is provided on one side of the side mounting base 2, and the two output ends of the dual-axis motor 6 are respectively connected to two first drive shafts 41, and the two output ends of the dual-axis motor 6 rotate in the same direction.

[0059] In specific implementation, it also includes a shaft fixing component 8, which is sleeved on the second drive shaft 42 and fixedly connected to the side mounting seat 2.

[0060] In practice, when the molding top seat 12 needs to be moved, the first drive shaft 41 is driven to rotate. The first drive shaft 41 drives the second drive shaft 42 to rotate via the drive belt 44. The second drive shaft 42 drives the drive toothed roller 43 to rotate. The drive toothed roller 43 completes the synchronous driving process of the cover plate through meshing with the toothed groove 36. By setting the drive toothed roller 43 to be rotatably connected below the first cover plate 31, the design of the water guiding structure above the cover plate is also facilitated while driving the cover plate.

[0061] By setting a drive belt 44 to drive the first drive shaft 41 and the second drive shaft 42, the drive belt 44 can rotate around the second drive shaft 42 while the molding platform 121 is in contact with the first cover plate 31. By setting the molding top seat 12 to be connected to the outer connecting section 442, the drive toothed roller 43 can drive the cover plate to close on the resin tank 111 when the outer connecting section 442 drives the molding top seat 12 to move upward, which is convenient for use.

[0062] In a preferred embodiment, a sliding seat 5 is also included, wherein two drive toothed rollers 43 are rotatably arranged on one side of the side mounting seat 2, and the two drive toothed rollers 43 are respectively rotatably arranged on opposite sides of the first cover plate 31; arc-shaped protrusions 23 are provided on opposite sides of the side mounting seat 2, the sliding seat 5 is sleeved on the arc-shaped protrusions 23, slidably connected with the arc-shaped protrusions 23, and fixedly connected with the outer connecting section 442 and the forming top seat 12.

[0063] By setting the sliding seat 5 to slide on the outside of the arc-shaped protrusion 23, the arc-shaped protrusion 23 can also restrict the sliding seat 5 from moving outward, thereby improving the sliding stability of the sliding seat 5.

[0064] The sliding joint 5 is provided with a mounting support 51, and a connecting seat 52 that is opposite to the outer connecting section 442 is connected to the mounting support 51. The outer connecting section 442 is provided with multiple positioning holes 443. The connecting seat 52 is provided with a first bolt hole 521 that matches the positioning hole 443. A second bolt hole 522 that communicates with each other is provided between the connecting seat 52 and the mounting support 51.

[0065] This design allows the sliding seat 5 to be detached from the drive belt 44. By connecting the sliding seat 5 to each positioning hole 443 on the drive belt 44, the connection position between the sliding seat 5 and the drive belt 44 can be adaptively adjusted.

[0066] In a preferred embodiment, the system further includes a sealing plate 71, an adjusting convex plate 72, and a spring 74. The first cover plate 31 and the third cover plate 33 each have a first mounting groove 39, and the second cover plate 32 has second mounting grooves 322 at both ends, which communicate with the first mounting grooves 39. The sealing plate 71 is slidably connected to the inner side of the first mounting groove 39 or the second mounting groove 322, and has a first mounting groove 711. The adjusting convex plate 72 is rotatably disposed inside the first mounting groove 711 and located in the middle of the first mounting groove 711, protruding from the first mounting groove 711. A connecting gap 22 is formed between the side mounting seat 2 and the molding base 11, and the length of the connecting gap 22 is greater than the length of the adjusting convex plate 72. The spring 74 is disposed between the adjusting convex plate 72 and the sealing plate 71 to reset the rotational position of the adjusting convex plate 72.

[0067] It should be noted that when the sealing plate 71 moves outward to abut against the first assembly groove 39 or the second assembly groove 322, the sealing plate 71 covers the cylindrical protrusion 34 and its connecting seam in the height direction. When the sealing plate 71 moves outward to abut against the first assembly groove 39 or the second assembly groove 322, the sealing plate 71 is completely located inside the first assembly groove 39 or the second assembly groove 322.

[0068] By setting the sealing plate 71, during the period when the cover plate closes the resin tank 111, the outer wall of the side mounting base 2 can abut against the adjusting protrusion 72, so that the adjusting protrusion 72, through the spring 74, abuts against the sealing plate 71, allowing the sealing plate 71 to move outward to abut against the tank wall. Thus, during the period when the cover plate closes the resin tank 111, the sealing plate 71 can cover the cylindrical protrusion 34 and its connecting seam in the height direction, thereby increasing the sealing performance between the various cover plates through a shielding effect. During the period when the cover plate disengages from the resin tank 111, the inner wall of the side mounting base 2 abuts against the adjusting protrusion 72, the adjusting protrusion 72 rotates to the other side, and drives the sealing plate 71 to slide inward until it disengages from the cylindrical protrusion 34, allowing the various cover plates to rotate relative to each other, facilitating folding and storage. By setting the length of the connecting gap 22 to be greater than the length of the sealing plate 71, the sealing plate 71 can rotate to be located at the connecting gap 22, facilitating the abutment of the inner wall of the side mounting base 2 against the adjusting protrusion 72.

[0069] It also includes a connecting shaft 73, wherein a second mounting groove 712 is provided inside the first mounting groove 711, the connecting shaft 73 is fixedly connected to the adjusting convex plate 72, and is located inside the second mounting groove 712 and rotatably connected to the sealing plate 71, and the spring 74 is sleeved on the connecting shaft 73 and fixedly connected to the adjusting convex plate 72 and the sealing plate 71.

[0070] This design allows the spring 74 to bend and deform around the connecting shaft 73, thus improving the deformation stability of the spring 74.

[0071] In a preferred embodiment, the first cover plate 31, the second cover plate 32 and the third cover plate 33 are all provided with water guiding grooves 37, and the third cover plate 33 is provided with a drainage groove 38 that communicates with the water guiding grooves 37, and the drainage groove 38 is connected to the end of the third cover plate 33.

[0072] In practice, the water guide channel 37 extends horizontally and is perpendicularly connected to the drainage channel 38.

[0073] With this design, when removing the molded part, the water that drips from the molded part can be discharged through the water guide channel 37 and the drainage channel 38, making it easy to collect and treat the discharged water.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A 3D printing molding device for photopolymer materials, characterized in that: It includes a molding base, a molding top seat, a side mounting seat, a first cover plate, a second cover plate, a third cover plate, and a drive assembly, wherein, A molding top seat is slidably disposed above the molding base and can move toward or away from the molding base. A resin tank is provided on the top of the molding base for storing resin. A molding light source is disposed inside the resin tank. A molding platform is provided at the bottom of the molding top seat. The molding platform is used to slide into the inside of the resin tank and the resin molded part is solidified inside the molding platform. A side mounting base is provided on one side of the molding base, and a connection hole is provided on the side mounting base. The first cover plate is slidably inserted through the inner side of the connection hole. The first cover plate is used to slide to cover the top of the resin tank. The second cover plate is rotatably disposed at the end of the first cover plate, and the third cover plate is rotatably disposed at the end of the second cover plate away from the first cover plate. Both the ends of the first cover plate and the third cover plate are provided with cylindrical protrusions, and both ends of the second cover plate are provided with connecting grooves. The connecting grooves are semi-circular grooves, and the cylindrical protrusions are rotatably disposed inside the connecting grooves. The bottom of the first cover plate is provided with a first clearance groove, and the top of the third cover plate is provided with a second clearance groove. Both the first clearance groove and the second clearance groove are used for the end wall of the second cover plate to be inserted. The driving assembly is disposed between the molding top seat and the first cover plate. When the molding top seat slides upward, the first cover plate slides towards the molding base.

2. The photopolymer material 3D printing equipment as described in claim 1, characterized in that: The end wall of the third cover plate away from the second cover plate is an inclined wall.

3. The photopolymer material 3D printing equipment as described in claim 1, characterized in that: The number of side mounting seats is two, and the two side mounting seats are respectively arranged on opposite sides of the molded base. One side of the first cover plate has an insertion protrusion at its end, and the other side of the first cover plate has an insertion groove for the insertion protrusion to be inserted into.

4. The photopolymer material 3D printing equipment as described in claim 1, characterized in that: The cylindrical protrusion has a transition groove, and the interior of the connecting groove is provided with a transition ring that is rotatably connected to the transition groove. The shapes of the transition groove and the transition ring are adapted to each other, and the transition ring is a circular ring.

5. The photopolymer material 3D printing equipment as described in claim 1, characterized in that: The drive assembly includes a first drive shaft, a second drive shaft, a drive toothed roller, and a drive belt, wherein, Both the first drive shaft and the second drive shaft are rotatably disposed on one side of the side mounting base, with the second drive shaft located below the first cover plate; A drive toothed roller is mounted on the second drive shaft. The first cover plate, the second cover plate, and the third cover plate are all provided with toothed grooves, and the drive toothed roller meshes with the toothed grooves. A drive belt is connected to the first drive shaft and the second drive shaft. The drive belt includes an inner connecting section and an outer connecting section. The outer connecting section is located on the side of the inner connecting section away from the side mounting seat. The molded top seat is fixedly connected to the outer connecting section.

6. The photopolymer material 3D printing equipment as described in claim 5, characterized in that: It also includes a sliding joint, in which, Two drive toothed rollers are rotatably disposed on one side of the side mounting base, and the two drive toothed rollers are respectively rotatably disposed on opposite sides of the first cover plate; Both sides of the side mounting base are provided with arc-shaped protrusions. The sliding seat is sleeved on the arc-shaped protrusions, slidably connected to the arc-shaped protrusions, and fixedly connected to the outer connecting section and the molded top seat.

7. The photopolymer material 3D printing equipment as described in claim 6, characterized in that: The sliding joint is provided with a mounting bracket, and a connecting seat that is opposite to the outer connecting section is connected to the mounting bracket. The outer connecting section has multiple positioning holes, and the connecting seat has a first bolt hole that matches the positioning holes. A second bolt hole that communicates with the mounting bracket is provided between the connecting seat and the mounting bracket.

8. The photopolymer material 3D printing equipment as described in claim 1, characterized in that: It also includes a sealing plate, an adjusting convex plate, and a spring, among which, The first cover plate and the third cover plate are each provided with a first assembly groove, and the second cover plate is provided with a second assembly groove at both ends, and the second assembly groove is connected to the first assembly groove. A sealing plate is slidably connected to the inner side of the first or second assembly groove. A first mounting groove is provided on the sealing plate. The regulating protrusion is rotatably disposed inside the first mounting groove and located in the middle of the first mounting groove. The regulating protrusion protrudes from the first mounting groove. A connection gap is formed between the side mounting base and the molding base, and the length of the connection gap is greater than the length of the regulating protrusion. A spring is disposed between the regulating convex plate and the sealing plate to reset the rotational position of the regulating convex plate.

9. The photopolymer material 3D printing equipment as described in claim 8, characterized in that: It also includes couplings, among which, The first mounting groove has a second mounting groove inside. The connecting shaft is fixedly connected to the adjusting convex plate and is located inside the second mounting groove and rotatably connected to the sealing plate. The spring is sleeved on the connecting shaft and is fixedly connected to the adjusting convex plate and the sealing plate.

10. The photopolymer material 3D printing equipment as described in claim 1, characterized in that: The first cover plate, the second cover plate and the third cover plate are all provided with water guiding grooves, and the third cover plate is provided with a drainage groove that is connected to the water guiding grooves and the drainage groove is connected to the end of the third cover plate.

Images