Denture 3D printing forming equipment
By using a power mechanism to drive the interlaced movement of the limit blocks and an automatic cleaning mechanism, the problems of difficult demolding and impurity residue in 3D printed dentures have been solved, improving printing accuracy and equipment automation, and enhancing the quality of denture production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHONGQING HUAZHI GUOHUI TECHNOLOGY CO LTD
- Filing Date
- 2026-03-13
- Publication Date
- 2026-06-02
AI Technical Summary
During the 3D printing process of dentures, the printed material tends to adhere to the molding plate, making demolding difficult. Furthermore, residual impurities on the surface of the molding plate affect the subsequent printing quality and reduce the production pass rate.
A 3D printing molding device for dentures was designed. The device uses a power mechanism to drive the limiting blocks to move the molding plates in an alternating manner to achieve demolding without damage. It is also equipped with a cleaning mechanism to automatically remove residual materials and impurities.
It achieves non-destructive automatic demolding, improves the pass rate of finished dentures and the cleanliness of the molded plates, and enhances the automation level and printing accuracy of the equipment.
Smart Images
Figure CN122123801A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of dental prosthesis 3D printer technology, and more particularly to a dental prosthesis 3D printing molding device. Background Technology
[0002] 3D printing technology has been widely applied in the field of modern dental prosthesis manufacturing. A 3D printer, also known as a three-dimensional printer, is a rapid prototyping technology that uses digital model files as a basis and employs bondable materials such as powdered metal and medical resin to build solid components layer by layer. It is a typical additive manufacturing technology. In dental prosthesis manufacturing, simply place the three-dimensional digital model data of the prosthesis and the printing material into the 3D printer, and the machine will build the prosthesis layer by layer according to a preset program, ultimately completing the prosthesis production.
[0003] In the 3D printing process of dentures, the printing nozzle melts or solidifies the molding material and moves along a preset path to stack it layer by layer on a molding plate. However, after printing, the denture tends to adhere strongly to the molding plate, making demolding difficult. Forcibly peeling it off with external force can easily cause deformation, cracking, and other damage to the denture itself. Furthermore, uncured material, support structure fragments, and other impurities remain on the surface of the molding plate after printing, reducing its surface flatness. Continuing to print in this state will directly affect the molding accuracy, fit, and surface quality of subsequent dentures, thereby reducing the denture production yield.
[0004] To address these issues, we designed a 3D printing equipment for prostheses. Summary of the Invention
[0005] In response to the above situation and to overcome the defects of the existing technology, the present invention provides a 3D printing molding equipment for dentures. First, the molding plate is separated. During the demolding process of the denture, the surface of the molding plate is made to float in an alternating up and down state, thereby completing the demolding of the denture. Second, the upper surface of the molding plate is cleaned by the scraper in the cleaning mechanism to remove residual uncured material, support structure fragments and other impurities, so as to avoid affecting the denture production qualification rate.
[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A 3D printing molding device for dentures includes: a housing, a molding plate, a power mechanism, and an assembly assembly; An assembly group is provided at the lower part of the shell, and a forming plate is installed on the assembly group; the power mechanism is connected to the forming plate; the assembly group is mainly composed of a first assembly plate, a second assembly plate and a bottom plate. The two first assembly plates and the two second assembly plates enclose a rectangular cavity, and the bottom plate is installed in the rectangular cavity. The forming plate is composed of multiple strip plates arranged in a row; both ends of the forming plate are slidably connected to two second assembly plates, and the middle of the strip plate is vertically fixed to a central column, which extends downward in a vertical direction and penetrates the bottom plate; a first spring is fitted around the outside of the central column; a limit block is independently set below the forming plate corresponding to each central column, and the limit block is used to adjust the height of adjacent strip plates; multiple limit blocks are installed on the sliding plate and are driven by the sliding plate to achieve synchronous displacement; the power mechanism is used to drive the sliding plate to move.
[0007] In one embodiment, a linear motion module is fixedly mounted on the upper inner side of the housing. This linear motion module is an XYZ three-axis linkage motion mechanism, which integrates an X-axis linear guide rail assembly, a Y-axis linear guide rail assembly, and a Z-axis linear guide rail assembly. A print head is detachably mounted on the movable end of the linear motion module. The print head is signal-connected to the drive control system of the linear motion module, and moves in a coordinated manner in the X, Y, and Z axes through the linear motion module.
[0008] In one embodiment, both ends of the limiting block are set as horizontal surfaces, and a concave surface and an convex surface are sequentially machined between the horizontal surfaces at both ends, with the concave surface and the convex surface smoothly transitioning and connecting; adjacent limiting blocks are arranged in a reverse staggered manner, that is, the concave surface and the convex surface on the limiting blocks correspond to each other.
[0009] In one embodiment, the power mechanism mainly consists of a crossbar, an electric slide rail, a limiting shaft, and a transmission part; one end of the crossbar is fixedly connected to the power output end of the electric slide rail, and the other end is movably sleeved on the limiting shaft; a transmission part is fixedly provided at the middle position of the crossbar.
[0010] In one embodiment, the transmission part is specifically composed of a spring rod and a rubber layer. The spring rod is fixedly installed vertically upward at the middle position of the crossbar, and the rubber layer tightly wraps around and fixes the top of the spring rod.
[0011] In one embodiment, the housing is provided with a cooling mechanism, which integrates two core cooling components: a fan and a semiconductor condenser plate. The cooling mechanism is connected to the internal cavity of the housing via an air outlet pipe, with the air outlet of the air outlet pipe aligned with the molding plate and the denture printing area.
[0012] In one embodiment, a cleaning mechanism is provided inside the housing, comprising: a scraper, a connecting shaft, a slider, a second spring, a lifting block, a first stop block, and a second stop block; the scraper is obliquely arranged above the forming plate; connecting shafts are fixedly provided at both ends of the scraper, and the two connecting shafts extend downward and pass through the sliders on corresponding sides, and are fixedly connected to the two lifting blocks below the sliders; a second spring is fitted between the scraper and the slider; a groove is provided at the lower end of the lifting block, and a slope is provided inside the groove; the first stop block and the second stop block are both slidably mounted on the lifting block, and a certain distance is maintained between the first stop block and the second stop block, within which an elastic element is provided; one end of the first stop block is an inclined surface, and the other end is a vertical surface, and the second stop block has the same structure as the first stop block, but is rotated 180 degrees relative to the first stop block.
[0013] In one embodiment, to meet the installation and movement requirements of the cleaning mechanism, the structure of the first assembly plate and the crossbar includes: a second sliding groove provided on the first assembly plate, the slider forming a sliding fit with the second sliding groove on the first assembly plate, a first limiting post and a second limiting post respectively installed at both ends of the first assembly plate, wherein the height of the first limiting post is greater than that of the second limiting post; and protrusions provided at both ends of the top surface of the crossbar, the top surface of the protrusions being an arc-shaped surface, and the protrusions provided on the top surface of the crossbar extending into the groove.
[0014] In one embodiment, the same end of the two first assembly plates is connected to a vertical plate, which cooperates with the inner sidewall of the shell to form a through slag discharge channel. The lower end of the slag discharge channel is connected to a collection box, the bottom surface of which is inclined, and the collection box is installed on the shell by a pull-out method.
[0015] The beneficial effects of this invention are as follows: (1) The present invention drives the limiting block to move through the power mechanism, so that the adjacent strip plates form an alternating up and down misalignment movement, which can generate a separation force on the bottom of the denture, realize automatic demolding without squeezing or damage, effectively avoid the denture from deformation, breakage or surface scratches during demolding, and greatly improve the qualification rate and structural integrity of the finished denture.
[0016] (2) The present invention realizes automatic scraping operation through the linkage of the power mechanism and the cleaning mechanism, which can quickly remove residual materials and debris impurities on the surface of the forming plate, keep the plate surface flat and clean for a long time, and eliminate the need for manual cleaning. This not only improves the automation level of the equipment, but also provides a stable and reliable support foundation for the next printing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of one side of the structure of the present invention; Figure 2 This is a schematic diagram of the structure on the other side of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the present invention; Figure 5 This is a schematic diagram of the molding plate structure of the present invention; Figure 6 This is a schematic diagram of the slide plate and limiting block structure of the present invention; Figure 7 This is a schematic diagram of the power mechanism structure of the present invention; Figure 8 This is a schematic diagram of the transmission part structure of the present invention; Figure 9 This is a schematic diagram of the cleaning mechanism structure of the present invention; Figure 10 This is a schematic diagram of the lifting block structure of the present invention; Figure 11 This is a schematic diagram of the upward movement of the cleaning mechanism of the present invention; Figure 12 This is a schematic diagram of the descent motion of the cleaning mechanism of the present invention.
[0018] In the diagram: 1. Housing; 11. Collection box; 2. Linear motion module; 21. Printer head; 3. Forming plate; 31. Strip plate; 32. Central column; 33. First spring; 34. Limiting block; 341. Flat surface; 342. Concave surface; 343. Convex surface; 35. Slide plate; 4. Power mechanism; 41. Crossbar; 42. Electric slide rail; 43. Limiting shaft; 44. Transmission part; 45. Protrusion; 441. Spring rod; 442. Rubber layer; 5. Cleaning mechanism; 51. Scraper 52. Plate; 53. Connecting shaft; 54. Slider; 55. Second spring; 56. Lifting block; 57. First stop block; 58. Second stop block; 59. Groove; 50. Slope; 60. Cooling mechanism; 61. Air outlet pipe; 71. Assembly group; 72. First assembly plate; 73. Second assembly plate; 74. Base plate; 75. Slag discharge channel; 76. Vertical plate; 77. First chute; 78. Second chute; 79. First limiting post; 70. Second limiting post; 71. Slide rod. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.
[0020] First embodiment: Please see Figure 1-3 The present invention discloses a 3D printing molding equipment for dentures, comprising: a housing 1, a linear motion module 2, a molding plate 3, a power mechanism 4, a cooling mechanism 6, and an assembly group 7; Please see Figure 1-3A linear motion module 2 is fixedly assembled in the upper part of the inner side of the housing 1. The linear motion module 2 is an XYZ three-axis linkage motion mechanism, which integrates an X-axis linear guide rail assembly, a Y-axis linear guide rail assembly, and a Z-axis linear guide rail assembly. A print head 21 is detachably installed on the moving end of the linear motion module 2. The print head 21 is connected to the drive control system of the linear motion module 2. Through the coordinated linkage motion of the linear motion module 2 in the X-axis, Y-axis, and Z-axis directions, a full-coverage printing operation on the denture forming area is achieved. An assembly group 7 is provided in the lower part of the inner side of the housing 1. A forming plate 3 is installed on the assembly group 7. A power mechanism 4 is connected to the forming plate 3 and is used to drive the forming plate 3 to move, so as to realize the demolding action of the printed denture. A cooling mechanism 6 is installed on the housing 1 and can deliver cold air to the forming area to quickly cool and solidify the printed denture. Please see Figure 4 The assembly group 7 is mainly composed of a first assembly plate 71, a second assembly plate 72, and a base plate 73. There are two first assembly plates 71 and two second assembly plates 72. The two ends of the two first assembly plates 71 are fixedly connected to the inner wall of the housing 1. The two first assembly plates 71 and the two second assembly plates 72 maintain a 90-degree vertical angle with each other and are connected end-to-end in sequence to form a rectangular cavity structure. The base plate 73 is fixedly installed at the bottom of this rectangular cavity. A first sliding groove 711 is provided on the side wall surface of the first assembly plate 71. Multiple sliding rods 721 are evenly arranged on the opposite inner side walls of the two second assembly plates 72. All sliding rods 721 are arranged vertically and are evenly spaced along the vertical direction. Please see Figure 5 The forming plate 3 is composed of multiple strip plates 31 arranged in parallel. During the forming stage of the denture printing operation, the top surfaces of the multiple strip plates 31 are always kept flush, forming a flat denture forming bearing surface. Each strip plate 31 has sliding nesting holes at both ends that are adapted to slide rods 721. Through these nesting holes, it forms a sliding fit with the slide rods 721 correspondingly provided on the two second assembly plates 72, so that the strip plate 31 can move vertically up and down in a stable manner along the extension direction of the slide rods 721. A central column 32 is vertically fixed to the middle of each strip plate 31. The central column 32 extends downward in the vertical direction and passes through the bottom plate 73 of the assembly group 7. Its lower end extends out of the outside of the bottom plate 73. The lower end face of the central column 32 is designed as an arc surface structure. A first spring 33 is fitted around the outside of the central column 32. The upper end of the first spring 33 abuts against and is fixed to the lower surface of the strip plate 31, and the lower end abuts against and is fixed to the upper surface of the bottom plate 73. Please see Figure 6Below the forming plate 3, each central column 32 is independently provided with a limiting block 34. All limiting blocks 34 are uniformly arranged on the sliding plate 35 in a fixed installation manner, and are driven by the sliding plate 35 to achieve synchronous displacement. The left and right ends of the limiting block 34 are both set as horizontal surfaces 341. A concave surface 342 and an upper convex surface 343 are sequentially machined between the horizontal surfaces 341 at both ends. The concave surface 342 and the upper convex surface 343 are smoothly connected and together form the top limiting contour of the limiting block 34. Adjacent limiting blocks 34 adopt... The arrangement uses a reverse staggered configuration, where the concave surface 342 and the convex surface 343 on the limiting block 34 correspond to each other, thereby achieving alternating limiting control of the height of the central column 32; the sliding plate 35 forms a sliding fit connection with the first sliding groove 711 opened on the first mounting plates 71 on both sides, so that the sliding plate 35 can move stably left and right horizontally along the guide of the first sliding groove 711, thereby driving all the limiting blocks 34 to complete the lateral displacement synchronously; both ends of the sliding plate 35 along its own direction of movement are set to be inclined upwards; When the lower ends of the multiple central posts 32 are respectively attached and pressed against the horizontal surface 341 of the corresponding limiting block 34, the top surfaces of the multiple strip plates 31 can maintain a consistent height and be flush as a whole, forming a continuous and flat printing support surface, which meets the working conditions requirements of denture printing and forming. When the power mechanism 4 drives the slide plate 35 to move horizontally along the first slide groove 711, the slide plate 35 drives all the limiting blocks 34 to move laterally in sync. At this time, the lower end of each central column 32 slides along the top surface contour of the limiting block 34, passing through the horizontal surface 341, the concave surface 342 and the convex surface 343 in sequence. Since the two adjacent limiting blocks 34 are arranged in opposite directions, the two adjacent central columns 32 will alternately cooperate with the concave surface 342 and the convex surface 343 respectively, so that the corresponding strip plate 31 will move upward and downward respectively under the combined action of the first spring 33 and the limiting contour. The two adjacent strip plates 31 move alternately up and down, forming a height difference, so that the bottom of the denture, which was originally supported as a whole, is subjected to segmented and alternating pushing and separating action, thereby allowing the denture and the strip plate 31 to gradually separate from each other and realize the automatic demolding action. Please see Figure 7The power mechanism 4 is mainly composed of a crossbar 41, an electric slide rail 42, a limiting shaft 43, and a transmission part 44. One end of the crossbar 41 is fixedly connected to the power output end of the electric slide rail 42, and the other end is movably sleeved on the limiting shaft 43, forming a stable support structure with one end driving and the other end guiding. Through the reciprocating motion of the electric slide rail 42, the crossbar 41 can be smoothly driven to move left and right in the horizontal direction. A transmission part 44 is fixedly provided in the middle of the crossbar 41. The upper end of the transmission part 44 is used to abut against the bottom surface of the slide plate 35. Thus, during the left and right movement of the crossbar 41, through the cooperation between the transmission part 44 and the slide plate 35, the slide plate 35 is synchronously driven to move horizontally along the first slide groove 711, thereby realizing the synchronous movement of multiple limiting blocks 34 and providing power input for the demolding action. Please see Figure 8 The transmission part 44 is specifically composed of a spring rod 441 and a rubber layer 442. The spring rod 441 is vertically and fixedly installed in the middle of the crossbar 41. The rubber layer 442 tightly wraps around and is fixed to the top of the spring rod 441 to increase the friction coefficient when in contact with the bottom surface of the slide plate 35, ensuring stable transmission without slippage. In the initial state, the transmission part 44 is located on one side of the slide plate 35 and is separated from the slide plate 35. Please see Figure 1-2 The cooling mechanism 6 integrates two core cooling components: a fan and a semiconductor condenser plate, which can quickly generate low-temperature cooling airflow. The cooling mechanism 6 is connected to the internal cavity of the housing 1 through an air outlet duct 61. The air outlet of the air outlet duct 61 is aligned with the molding plate 3 and the denture printing area to ensure that the cold air blows directly onto the working position. During and after the denture printing process, the cooling mechanism 6 is immediately activated. The fan quickly cools the internal airflow through the semiconductor condenser plate to form low-temperature cold air, which is then continuously blown onto the denture surface through the air outlet duct 61. The forced air cooling method quickly removes the heat from the denture and molding material, thereby accelerating material curing and shaping and improving the overall printing efficiency.
[0021] Working principle of this invention: After the denture printing is completed, the equipment enters the automatic demolding stage; the electric slide rail 42 drives the crossbar 41 to move along the limiting shaft 43 to the slide plate 35. When the rubber layer 442 at the top of the transmission part 44 contacts the inclined end face of the slide plate 35, the spring rod 441 is compressed, so that the rubber layer 442 is tightly attached to the bottom surface of the slide plate 35. Under the action of friction, the transmission unit 44 drives the slide plate 35 to move horizontally along the first slide groove 711, thereby driving all the limiting blocks 34 to move synchronously. Since the adjacent limiting blocks 34 are arranged in opposite directions, the lower end of the central column 32 will alternately cooperate with the concave surface 342 and the convex surface 343 of the limiting block 34. Under the combined action of the first spring 33 and the limiting contour, the adjacent strip plates 31 move alternately up and down, forming a height difference. This segmented and alternating misalignment movement can gradually separate the bottom of the denture from the strip plate 31, achieving smooth and automatic demolding. After demolding, the worker removes the molded denture, and the electric slide rail 42 drives the crossbar 41 to reset. Since the travel of the slide plate 35 is less than the reset travel of the crossbar 41, the multiple limit blocks 34 complete their reset in advance during the reset process of the crossbar 41. When the lower ends of all the central columns 32 are once again attached to the horizontal surface 341 of the limit blocks 34, the top surfaces of each strip plate 31 return to being flush, forming a flat printing support surface again, and the equipment can then enter the next printing cycle.
[0022] Second embodiment: After the denture is printed, uncured material, support structure fragments, and other impurities often remain on the surface of the molding plate 3, affecting surface flatness and hindering subsequent printing and demolding. Therefore, this device is equipped with a cleaning mechanism 5 to automatically clean the molding plate 3, ensuring its surface is clean and flat. Since the cleaning mechanism 5 requires a corresponding installation position and movement space, the structure of the first assembly plate 71 and the crossbar 41 is supplemented accordingly to meet the installation, guiding, and linkage movement requirements of the cleaning mechanism 5. Please see Figure 4 The first assembly plate 71 is provided with a second sliding groove 712, and a first limiting post 713 and a second limiting post 714 are respectively installed at both ends of the first assembly plate 71, wherein the height of the first limiting post 713 is greater than that of the second limiting post 714; the same end of the two first assembly plates 71 are connected to a vertical plate 75, which cooperates with the inner sidewall of the shell 1 to form a through slag discharge channel 74, which is used to discharge the impurities cleaned from the surface of the forming plate 3 to the outside; the lower end of the slag discharge channel 74 is connected to a collection box 11, the bottom surface of the collection box 11 is designed with an inclination, which allows the impurities to gather at one end of the collection box 11 under their own weight, avoiding the accumulation and blockage of impurities at the outlet of the slag discharge channel 74; the collection box 11 is installed on the shell 1 by a pull-out type, which is convenient to be pulled out and cleaned periodically. Please see Figure 7 The top surface of the crossbar 41 is provided with protrusions 45 at both ends, and the top surface of the protrusions 45 is an arc-shaped surface; Please see Figure 9-10The cleaning mechanism 5 mainly consists of a scraper 51, a connecting shaft 52, a slider 53, a second spring 54, a lifting block 55, a first stop block 56, and a second stop block 57. The scraper 51 is inclinedly arranged above the forming plate 3, and the downward inclined end of the scraper 51 is in close contact with the upper surface of the forming plate 3 to scrape and clean the residual impurities on the surface of the forming plate 3. In the initial state, the scraper 51 is located on one side of the forming plate 3 and is in the ready-to-work position. The scraper 51 has connecting shafts 52 fixedly installed at both ends. Both connecting shafts 52 extend vertically downward and pass through the corresponding sliders 53. They are fixedly connected to two lifting blocks 55 below the sliders 53. The sliders 53 form a sliding fit with the second slide groove 712 opened on the first assembly plate 71 and can move back and forth horizontally along the second slide groove 712. A second spring 54 is installed between the scraper 51 and the slider 53. The second spring 54 applies downward elastic pressure to the scraper 51 so that the scraper 51 always remains in contact with the upper surface of the forming plate 3. The lower end of the lifting block 55 is provided with a groove 551, and the inside of the groove 551 is provided with a slope 552. The protrusion 45 provided on the top surface of the crossbar 41 extends into the groove 551. In the initial state, the upper end of the protrusion 45 is located at the end of the slope 552 that is inclined upward. Both the first stop block 56 and the second stop block 57 are slidably mounted on the lifting block 55, and a certain distance is maintained between the first stop block 56 and the second stop block 57. An elastic element is provided within this distance. Through the elastic force of the elastic element, the first stop block 56 and the second stop block 57 maintain the set distance. One end of the first stop block 56 is an inclined surface and the other end is a vertical surface. The second stop block 57 has the same structure as the first stop block 56 and is set by rotating it 180 degrees relative to the first stop block 56. Initially, the vertical surface of the first stop block 56 is in contact with the first limiting post 713 on the first assembly plate 71.
[0023] Working principle of this invention: Please see Figure 11Before the transmission unit 44 drives the slide plate 35 to move, the cleaning mechanism 5 cannot move in a straight line in the horizontal direction because the first stop 56 is blocked and limited by the first limit post 713. At this time, the protrusion 45 on the crossbar 41 moves and pushes the slope 552 inside the groove 551. Under the guidance of the slope, the lifting block 55 is forced to rise, so that the protrusion 45 moves to the end of the slope 552 that is inclined downward, thereby raising the overall height of the cleaning mechanism 5. As the cleaning mechanism 5 is raised, the first stop 56 and the first limit post 713 form an interleaved avoidance in the height direction and no longer interfere with each other. Subsequently, the protrusion 45 drives the cleaning mechanism 5 to move smoothly from right to left through the groove 551. At the same time, the transmission unit 44 drives the slide plate 35 to move synchronously to complete the denture demolding operation. The purpose of raising the cleaning mechanism 5 is to separate the scraper plate 51 from the forming plate 3 during the denture demolding process and prevent them from contacting each other, so as to avoid the scraper plate 51 touching, squeezing or scratching the formed denture. Please see Figure 12 When the cleaning mechanism 5 moves to the left end of the first assembly plate 71, the inclined surface of the second stop 57 abuts against the second limiting post 714, and the second stop 57 moves upward under force, thus avoiding the second limiting post 714, allowing the cleaning mechanism 5 to continue moving; until the vertical surface of the second stop 57 is in contact with the second limiting post 714 and limited, the cleaning mechanism 5 reaches the left end point; during the process of the power mechanism 4 driving the crossbar 41 to reset, it will synchronously drive the cleaning mechanism 5 to move together; at this time, the second stop 57 is blocked by the second limiting post 714, and the cleaning mechanism 5 cannot move horizontally, the protrusion 45 moves relative to the slope 552 to the downward tilting end, causing the lifting block 55 to drive the overall height of the cleaning mechanism 5 to drop; after the drop, the second stop block 57 and the second limit post 714 form a height overlap, and the protrusion 45 then drives the cleaning mechanism 5 to move from left to right through the groove 551; during the return movement of the scraper 51, the lower end of the scraper 51 is in close contact with the upper surface of the forming plate 3, scraping off the uncured material, fragments and other impurities remaining on the forming plate 3 and pushing them forward, finally sending the impurities into the slag discharge channel 74, and the impurities fall down along the channel into the collection box 11 for centralized collection, realizing the automatic cleaning of the forming plate 3.
[0024] The above embodiments are merely one of the preferred embodiments of the present invention and should not be used to limit the scope of protection of the present invention. Any modifications or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but solve the same technical problem as the present invention, should be included within the scope of protection of the present invention.
Claims
1. A 3D printing equipment for dentures, comprising: The shell (1), the molding plate (3), the power mechanism (4), and the assembly group (7) are characterized in that: the assembly group (7) is provided at the lower part of the shell (1), and the molding plate (3) is installed on the assembly group (7); the power mechanism (4) is connected to the molding plate (3); the assembly group (7) is mainly composed of a first assembly plate (71), a second assembly plate (72) and a bottom plate (73), the two first assembly plates (71) and the two second assembly plates (72) enclose a rectangular cavity, and the bottom plate (73) is installed in the rectangular cavity; The forming plate (3) is composed of multiple strip plates (31) arranged together; the two ends of the forming plate are slidably connected to two second assembly plates (72), and the middle part of the strip plate (31) is vertically fixed to the central column (32), which extends downward in the vertical direction and penetrates the bottom plate (73); a first spring (33) is fitted around the outside of the central column (32); a limit block (34) is independently set below the forming plate (3) for each central column (32), and the limit block (34) is used to adjust the height of the adjacent strip plates (31). Multiple limit blocks (34) are installed on the slide plate (35) and are driven by the slide plate (35) to achieve synchronous displacement; the power mechanism (4) is used to drive the slide plate (35) to move.
2. The 3D printing equipment for dentures according to claim 1, characterized in that: According to claim 1, a 3D printing molding device for dentures is characterized in that: a linear motion module (2) is fixedly assembled in the upper inner area of the housing (1), the linear motion module (2) is an XYZ three-axis linkage motion mechanism, which integrates an X-axis linear guide rail assembly, a Y-axis linear guide rail assembly and a Z-axis linear guide rail assembly; a printer head (21) is detachably installed on the moving end of the linear motion module (2), and the printer head (21) is connected to the drive control system of the linear motion module (2) by signal.
3. The 3D printing equipment for dentures according to claim 1, characterized in that: According to claim 1, the 3D printing molding equipment for dentures is characterized in that: both the left and right ends of the limiting block (34) are set as horizontal surfaces (341), and a concave surface (342) and an convex surface (343) are sequentially processed between the horizontal surfaces (341) at both ends, and the concave surface (342) and the convex surface (343) are smoothly connected; adjacent limiting blocks (34) are arranged in a reverse staggered manner, that is, the concave surface (342) and the convex surface (343) on the limiting block (34) correspond to each other.
4. The 3D printing equipment for dentures according to claim 3, characterized in that: The power mechanism (4) is mainly composed of a crossbar (41), an electric slide rail (42), a limiting shaft (43), and a transmission part (44). One end of the crossbar (41) is fixedly connected to the power output end of the electric slide rail (42), and the other end is movably sleeved on the limiting shaft (43). A transmission part (44) is fixedly provided in the middle of the crossbar (41).
5. The 3D printing equipment for dentures according to claim 4, characterized in that: The transmission part (44) consists of a spring rod (441) and a rubber layer (442). The spring rod (441) is fixedly installed vertically upward at the middle position of the crossbar (41), and the rubber layer (442) is fixed at the top of the spring rod (441).
6. The 3D printing equipment for dentures according to claim 1, characterized in that: The housing (1) is provided with a cooling mechanism (6), which integrates two core refrigeration components: a fan and a semiconductor condenser plate. The cooling mechanism (6) is connected to the internal cavity of the housing (1) through an air outlet pipe (61), and the air outlet of the air outlet pipe (61) is aligned with the molding plate (3) and the denture printing molding area.
7. The 3D printing equipment for dentures according to claim 1, characterized in that: The housing (1) is provided with a cleaning mechanism (5), which includes: a scraper (51), a connecting shaft (52), a slider (53), a second spring (54), a lifting block (55), a first stop block (56), and a second stop block (57); the scraper (51) is inclinedly arranged above the forming plate (3); the two ends of the scraper (51) are respectively fixedly provided with connecting shafts (52), the two connecting shafts (52) extend downward and pass through the sliders (53) on the corresponding sides, and are fixedly connected to the two lifting blocks (55) below the sliders (53); a second spring (54) is fitted between the scraper (51) and the slider (53); the lower end of the lifting block (55) is provided with a groove (551), and the groove (551) is provided with a slope (552) inside; The first stop (56) and the second stop (57) are both slidably mounted on the lifting block (55), and a certain distance is maintained between the first stop (56) and the second stop (57), within which an elastic element is provided; one end of the first stop (56) is an inclined surface and the other end is a vertical surface, the second stop (57) has the same structure as the first stop (56), and is set 180 degrees rotated relative to the first stop (56).
8. The 3D printing equipment for dentures according to claim 7, characterized in that: To meet the installation and movement requirements of the cleaning mechanism (5), the structure of the first assembly plate (71) and the crossbar (41) includes: a second sliding groove (712) on the first assembly plate (71), the slider (53) and the second sliding groove (712) on the first assembly plate (71) forming a sliding fit, a first limiting post (713) and a second limiting post (714) are respectively installed at both ends of the first assembly plate (71), wherein the height of the first limiting post (713) is greater than that of the second limiting post (714); a protrusion (45) is respectively provided at both ends of the top surface of the crossbar (41), the top surface of the protrusion (45) is an arc surface, and the protrusion (45) provided on the top surface of the crossbar (41) extends into the groove (551).
9. The 3D printing equipment for dentures according to claim 1, characterized in that: The two first assembly plates (71) are connected to a vertical plate (75) at the same end. The vertical plate (75) cooperates with the inner wall of the shell (1) to form a through slag discharge channel (74). The lower end of the slag discharge channel (74) is connected to a collection box (11). The bottom surface of the collection box (11) is designed with an inclination. The collection box (11) is installed on the shell (1) by a pull-out method.