An adjustable horizontal single-sided moving scraper mechanism for an SLA 3D printer and an SLA 3D printer.

Abstract

The application relates to the technical field of SLA 3D printers, in particular to a SLA 3D printer with an adjustable horizontal one-side moving scraper mechanism and the SLA 3D printer. The one-side moving scraper mechanism comprises a water platform surface, a Y-axis linear driving component arranged on the water platform surface and a scraper. The scraper comprises a mounting handle plate and a blade body. The left and right sides of the mounting handle plate are respectively provided with adjusting areas, a plurality of first screw holes penetrating from the top surface to the bottom surface are formed in the adjusting areas, two Y-axis sliding rails are arranged on the water platform surface and are spaced apart and parallel, each Y-axis sliding rail is slidably connected with a sliding block, the top surface of the sliding block is provided with a plurality of second screw holes matched with the first screw holes, and height adjusting screws are threadedly connected to the first screw holes and the second screw holes. The application adopts the adjustable horizontal one-side moving scraper mechanism design, on the basis of conveniently adjusting the level of the scraper, the moving process of the scraper is stable and smooth. Meanwhile, the vacuum suction pipe and the adjustable horizontal one-side moving scraper mechanism can be effectively prevented from interfering with each other.

Description

Technical Field

[0001] This application relates to the field of SLA 3D printer technology, and particularly to an adjustable horizontal single-sided moving scraper mechanism for an SLA 3D printer and an SLA 3D printer. Background Technology

[0002] Stereolithography (SLA) is an additive manufacturing (3D printing) technology that uses ultraviolet lasers to selectively cure liquid photosensitive resin to build three-dimensional objects layer by layer. An SLA 3D printer typically requires a liquid photosensitive resin tank, a printing light source mechanism, a lifting stencil, and a moving scraper mechanism. By immersing the lifting stencil in the liquid resin tank, the ultraviolet laser generated by the printing light source selectively cures the liquid photosensitive resin in the tank, building a three-dimensional object layer by layer on the immersed stencil. Because the liquid photosensitive resin in the tank is cured by ultraviolet laser irradiating it downwards, the scraper moves across the liquid surface during this process to spread the resin, pop air bubbles, and smooth out impurities, resulting in higher quality printed products.

[0003] Existing SLA 3D printers with scraper components typically require a scraper mounted on the material tank. Therefore, slide rail assemblies connected to both ends of the scraper are installed on the platforms on both sides of the material tank, allowing the scraper to move along the left and right slide rails. During printing, the scraper assists in spreading resin, puncturing air bubbles in the resin, and smoothing out impurities. During this smoothing process, it is necessary to keep the scraper level to improve product quality. With the aforementioned two-sided slide rail scraper assembly, the scraper is typically leveled by adjusting the height difference between its two ends.

[0004] However, in SLA 3D printers suitable for small-scale pilot production or printing small-volume products, the material tank already occupies a small area, resulting in a small overall equipment footprint. Using a dual-side sliding rail scraper assembly would be complex, requiring two sets of sliding rail components and corresponding mounting accessories at both ends of the scraper, increasing equipment complexity and production costs. Furthermore, it would encroach on space on both sides of the material tank. Additionally, scraper replacement requires disassembly and reassembly on both sides, making the process cumbersome.

[0005] Designing a mobile scraper mechanism suitable for smaller material tanks, capable of handling frequent component changes and adjustments, and facilitating easy scraper leveling and replacement while maintaining a compact layout and reduced costs, is a key challenge in this industry. Furthermore, the vacuum suction pipe connecting the scraper can easily interfere with the scraper assembly during scraper leveling and replacement. Optimizing the structure and construction of the mobile scraper mechanism to prevent this interference and improve ease of operation is crucial. Utility Model Content

[0006] To address the problems of the prior art mentioned in the background section, this application provides an adjustable horizontal single-sided moving scraper mechanism for SLA 3D printers, the technical solution of which is as follows:

[0007] This SLA 3D printer uses an adjustable horizontal single-sided moving scraper mechanism, which includes a horizontal platform, a Y-axis linear drive component mounted on the horizontal platform, and a scraper. The scraper includes a mounting plate and a blade body connected to the mounting plate. The mounting plate has adjustment areas on its left and right sides, each with several first screw holes extending from its top to its bottom. The horizontal platform has two spaced and parallel Y-axis slide rails, each slidably connected to a slider. The top surface of the slider has several second screw holes matching the first screw holes, and height adjustment screws are threaded onto the first and second screw holes, allowing the mounting plate to move horizontally. The left and right sides of the shank plate are detachably mounted on the slider, and the height of the two adjustment areas is adjustable; wherein, the Y-axis linear drive component is a synchronous belt linear drive module; the mounting shank plate has a belt-passing groove between the adjustment areas, which extends from its front surface to its rear surface, and the belt-passing groove is used for the synchronous belt to pass through. The synchronous belt moves to drive the mounting shank plate and the slider to move back and forth on the Y-axis slide rail; the blade body is provided with a vacuum suction pipe communicating with its internal cavity, and the mounting shank plate has a position fixing component for fixing the vacuum suction pipe, so that the vacuum suction pipe passes through the top surface of the mounting shank plate or passes through the upper and lower ring interval space of the synchronous belt.

[0008] In some embodiments, the length of the mounting plate is 1.2-2.5 times the length of the blade body; the width of the mounting plate is greater than twice the width of the blade body.

[0009] In some embodiments, the area of ​​each adjustment zone occupies one-quarter to one-third of the area of ​​the top surface of the mounting plate; wherein, the first screw holes in each adjustment zone are arranged in a rectangular array.

[0010] In some embodiments, the positioning fixing component is a strap that is tied around the outer periphery of the mounting handle plate.

[0011] In some embodiments, the position fixing component is a ring buckle that is detachably fixed to the mounting handle plate.

[0012] In some embodiments, the mounting handle plate is further provided with two third position sensors spaced apart at the front and rear limit ends of the moving path of the mounting handle plate; the mounting handle plate is provided with a third sensing ridge extending outward, and the third sensing ridge is located within the sensing area of ​​the front and rear interval regions of the two third position sensors.

[0013] In some embodiments, an auxiliary plate is detachably connected to the side of the mounting plate away from the blade body; one side of the auxiliary plate is detachably connected to the mounting plate, and the other side extends outward from the blade body to form a protrusion, the protrusion having a through-hole; the vacuum suction pipe is arranged to pass through the top surface of the mounting plate and passes through the through-hole from top to bottom.

[0014] In some embodiments, the third sensing protrusion has an L-shaped structure, which consists of a horizontal bar and a vertical bar; the horizontal bar is detachably connected to the auxiliary plate, and the vertical bar extends from the through-hole from top to bottom, so that the bottom end of the vertical bar is located in the sensing area of ​​the front and rear interval regions of the two third position sensors.

[0015] In some embodiments, a protective sleeve is provided around a portion of the vacuum suction tube.

[0016] In some embodiments, a transition neck is provided on the side of the mounting plate connected to the blade body, and the width of the transition neck gradually decreases from the direction close to the blade body until it is equal to the width of the blade body.

[0017] In some embodiments, the blade body has a cavity inside, and its bottom surface is open; the opening communicates with the cavity, and its front end face and rear end face form a blade.

[0018] In some embodiments, the front surface of the blade body is provided with a viewing window for observing the internal cavity.

[0019] In some embodiments, the bottom end of the blade is formed with a chamfer for smoothing the liquid, and the chamfer is an arc-shaped chamfer.

[0020] This application also provides an SLA 3D printer, which includes the moving scraper mechanism, material tank, detection plate placement mechanism assembly as described above, and a printing light source mechanism for providing curing light and disposed above the material tank; wherein, the detection plate placement mechanism assembly includes a lifting screen mechanism; the scraper of the moving scraper mechanism moves back and forth on the liquid surface of the material tank.

[0021] Based on the above, compared with the prior art, this application has the following beneficial effects:

[0022] This application employs an adjustable horizontal single-sided moving scraper mechanism. Adjustment areas are designed on both sides of the groove in the mounting plate, with corresponding slider rail assemblies for each. This dual-adjustment area design enhances the ease of adjusting the scraper's level. Furthermore, the single-sided dual-rail design, combined with the flat mounting plate structure and the groove in the middle of the dual rails, ensures stable and smooth scraper movement while allowing for easy leveling. Simultaneously, a positioning fixing component guides the vacuum suction tube through a specific location on the mounting plate, effectively preventing interference between the vacuum suction tube and the adjustable horizontal single-sided moving scraper mechanism. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Unless otherwise specified, the positional relationships in the drawings described below are based on the direction in which the components are drawn in the figures.

[0024] Figure 1 Schematic diagram of the SLA 3D printer structure provided in Embodiment 1 of this application Figure 1 ;

[0025] Figure 2 A schematic diagram of the partially disassembled structure of the SLA 3D printer provided in Embodiment 1 of this application;

[0026] Figure 3 A schematic diagram of the moving scraper mechanism of Embodiment 1 provided in this application;

[0027] Figure 4 A partial structural diagram of the movable scraper mechanism of Embodiment 1 provided in this application Figure 1 ;

[0028] Figure 5 for Figure 4 A partial structural breakdown diagram;

[0029] Figure 6 for Figure 4 A magnified view of a portion of the image;

[0030] Figure 7 A partial structural diagram of the movable scraper mechanism of Embodiment 1 provided in this application Figure 2 ;

[0031] Figure 8 A partial structural diagram of the movable scraper mechanism of Embodiment 1 provided in this application Figure 3 ;

[0032] Figure 9 for Figure 8 A magnified view of the rear view;

[0033] Figure 10 A schematic diagram of the Y-axis linear drive component provided in Embodiment 1 of this application;

[0034] Figure 11 for Figure 10 A magnified view of a portion of the image;

[0035] Figure 12 A schematic diagram of the blade body in the bottom view of Embodiment 1 provided in this application;

[0036] Figure 13 A side view structural diagram of the blade body provided in Embodiment 1 of this application;

[0037] Figure 14 A schematic diagram of the moving discharge mechanism (removing material pool) of Embodiment 1 provided in this application;

[0038] Figure 15 for Figure 14 A magnified view of a section at point A in the middle;

[0039] Figure 16 A partial structural schematic diagram of the movable discharge mechanism (installation tank) of Embodiment 1 provided in this application;

[0040] Figure 17 This is a schematic diagram of the material tank structure of Embodiment 1 provided in this application;

[0041] Figure 18 A schematic diagram of the stable platform structure in the moving discharge mechanism of Embodiment 1 provided in this application;

[0042] Figure 19 A schematic diagram of the lifting screen mechanism of Embodiment 1 provided in this application. Figure 1 ;

[0043] Figure 20 A schematic diagram of the lifting screen mechanism of Embodiment 1 provided in this application. Figure 2 ;

[0044] Figure 21 A partial structural schematic diagram of the movable scraper mechanism of Embodiment 2 provided in this application;

[0045] Figure 22 A partial structural schematic diagram of the movable scraper mechanism of Embodiment 3 provided in this application;

[0046] Figure 23 This is a partial structural diagram of an existing single-sided moving scraper mechanism;

[0047] Figure 24 A schematic cross-sectional view of the mounting structure of the mounting handle plate and slider provided in Embodiment 1 of this application.

[0048] Figure label:

[0049] 100. Moving discharge mechanism; 300. Lifting screen plate mechanism; 500. Moving scraper mechanism; 600. Main frame; 700. Horizontal platform; 110. Material pool; 120. Stable platform; 130. First Z-axis linear drive component; 140. X-axis linear drive component; 150. First position sensor; 111. Base; 112. Fixed plate; 1111. Holding port; 113. Discharge pipe; 114. Valve; 115. Main trough; 116. Secondary trough; 121. Vertical plate; 122. Bearing plate; 12 3. Triangular reinforcing block; 124. First sensing protrusion; 1221. Through port; 131. First Z-axis drive motor; 132. First drive screw; 133. Positioning slide rod; 134. First threaded seat; 135. Locking component; 141. First X-axis drive motor; 142. Slide table; 143. X-axis slide rail; 310. Support frame; 320. Mounting bracket; 330. Second Z-axis linear drive assembly; 340. Mesh plate; 350. Second position sensor; 321. Bracket; 322. Vertical tie rod; 323. 324. Slide bar; 331. Second sensing convex strip; 332. Second drive screw; 333. Second threaded seat; 334. Z-axis slide rail; 510. Scraper; 520. Y-axis linear drive component; 530. Third position sensor; 540. Position adjustment component; 550. Slider; 560. Y-axis slide rail; 570. Vacuum suction pipe; 580. Strap; 590. Ring buckle; 511. Mounting handle plate; 513. Third sensing convex strip; 514. Auxiliary plate; 515. Blade body; 5112. 5113, Belt slot; 5114, First screw hole; 5115, Transition neck; 5116, Height adjustment screw fastener; 5131, Horizontal bar; 5132, Vertical bar; 5141, Thread opening; 5151, Cavity; 5152, Opening; 5153, Chamfer; 5154, Viewing window; 521, Rotating seat; 522, Synchronous belt; 523, Y-axis drive; 5231, Fixing plate; 524, L-shaped fixing seat; 541, Base plate; 542, Limiting plate; 571, Protective sleeve; 710, Opening. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The technical features designed in the different implementations of this application described below can be combined with each other as long as they do not conflict with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0051] In the description of this application, it should be noted that all terms used in this application (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains, and should not be construed as limiting this application; it should be further understood that the terms used in this application should be understood to have the same meaning as those in the context of this specification and the relevant field, and should not be understood in an idealized or overly formal sense, except as expressly defined in this application.

[0052] This application provides, as follows: Figure 1-20 , Figure 24 The SLA 3D printer shown in Example 1 includes a frame, a stable moving material output mechanism 100, a detection and feeding mechanism assembly, a moving scraper mechanism 500, a printing light source mechanism (not shown in the figure), and a control system (not shown in the figure).

[0053] The frame includes a main frame 600 and a platform 700. The platform 700 is mounted on the waist of the main frame 600 and has an opening 710.

[0054] The stable moving discharge mechanism 100 is installed below the horizontal platform 700, and the material pool 110 is installed directly below the opening 710, so that the stable moving discharge mechanism 100 can carry and drive the material pool 110 to move upward to the opening 710, and then move downward to discharge material below the horizontal platform 700.

[0055] The mobile scraper mechanism 500 is installed on the horizontal platform 700, and the scraper 510 is mounted above the opening 710 and the material pool 110.

[0056] The detection plate placement mechanism assembly is located above the horizontal platform 700 and includes a lifting screen plate mechanism 300 and a detection mechanism. The lifting screen plate mechanism 300 is used to lower the screen plate 340 and immerse it in the material pool 110 below it. The detection mechanism is used to detect the liquid in the material pool 110.

[0057] The printing light source mechanism (not shown) is located above the material pool 110 and is used to provide curing light to irradiate the liquid material. The generated ultraviolet laser selectively cures the liquid photosensitive resin in the material pool 110, and builds a three-dimensional object layer by layer on the screen plate 340 immersed in the liquid material.

[0058] To facilitate differentiation of the equipment in different directions, this paper defines and calibrates the up-down, left-right, and forward-backward movement directions as the Z-axis, X-axis, and Y-axis directions, respectively.

[0059] The specific optimizations and improvements for each of the above-mentioned institutions are as follows:

[0060] 1. Optimization and improvement of the 500-type moving scraper mechanism:

[0061] Interference design for the adjustable level of the movable scraper mechanism 500 and the anti-vacuum suction pipe 570:

[0062] The movable scraper mechanism 500 is optimized as an adjustable horizontal single-sided movable scraper mechanism 500, which includes a horizontal platform 700, a Y-axis linear drive component 520 mounted on the horizontal platform 700, and a scraper 510; the scraper 510 includes a mounting plate 511 and a blade body 515 connected to the mounting plate 511; the mounting plate 511 has adjustment areas 5113 on its left and right sides respectively, and the adjustment areas 5113 have several first screw holes 5114 extending from its top surface to its bottom surface; the horizontal platform 700 has two spaced and parallel Y-axis slide rails 560, and each Y-axis slide rail 560 is slidably connected to a slider 550; the top surface of the slider 550 has several second screw holes that match the first screw holes 5114, and is threaded to the first screw holes 5114 and the second screw holes by height adjustment screws 5116. The left and right sides of the mounting plate 511 are detachably mounted on the slider 550, and the height of the two adjustment areas 5113 is adjustable; wherein, the Y-axis linear drive component 520 is a synchronous belt linear drive module; the mounting plate 511 has a belt-passing groove 5112 between the adjustment areas 5113, which extends from its front surface to its rear surface, and the belt-passing groove 5112 is used for the synchronous belt 522 to pass through. The synchronous belt 522 moves to drive the mounting plate 511 and the slider 550 to move back and forth on the Y-axis slide rail 560; the blade body 515 is provided with a vacuum suction pipe 570 communicating with its internal cavity 5151, and the mounting plate 511 has a position fixing component for fixing the vacuum suction pipe 570, so that the vacuum suction pipe 570 is arranged to pass through the top surface of the mounting plate 511 or through the upper and lower ring interval space of the synchronous belt 522.

[0063] Specifically, such as Figure 1-20 , Figure 24As shown in Example 1, when the scraper 510 is short and the equipment space is limited, adopting a single-sided sliding design helps reduce the number of double-sided sliding components, and the horizontal platform 700 does not need to occupy space on both sides. However, as Figure 23 As shown in the existing single-sided slide rail design of the scraper, this design makes it inconvenient to adjust the level of the scraper 510, and the scraper 510 is only supported on one side, making it unstable after installation and level adjustment.

[0064] Adopting such Figure 1-20 The optimized scheme shown in Example 1 designs adjustment areas 5113 on both sides of the through groove 5112 of the mounting plate 511, and designs corresponding sliders 550 and slide rails respectively, as follows: Figure 24 As shown, the screw holes on the adjustment area 5113 pass through the mounting plate 511 and the slider 550. By adjusting the tightening degree in the two adjustment areas 5113 (not shown in the figure), the level of the mounting plate 511 and the blade body 515 can be adjusted. This design makes leveling operation more convenient. At the same time, due to the use of a single-sided double slide rail design combined with the flat mounting plate 511 structure, and the design of the through groove 5112 in the middle of the double slide rails, the mounting support surface of the scraper 510 is increased. Thus, while leveling can be easily adjusted, the scraper 510 is also stably installed during movement.

[0065] Furthermore, due to the single-sided double-rail design, the vacuum suction pipe 570 preferentially passes through the side where the slide rail is installed, resulting in a more compact equipment layout. However, during the disassembly, leveling, or stroke movement of the scraper 510, the vacuum suction pipe 570 located on the slide rail side is prone to interference with the synchronous belt 522, double slide rail, and other components due to the aforementioned arrangement of the double-rail design and synchronous belt 522. The design of a fixed-position component to arrange the vacuum suction pipe 570 through a specific location on the mounting plate 511 effectively avoids this interference. This also frees up space on the other side of the material tank 110, facilitating the layout of other components or the placement of operator tools.

[0066] Optionally, the length of the mounting plate 511 is 1.2-2.5 times the length of the blade body 515; the width of the mounting plate 511 is greater than twice the width of the blade body 515.

[0067] Limiting the length and width of the mounting plate 511 to a certain proportion with the blade body 515 is beneficial to the stability of the mounting plate 511 and ensures that the blade body 515 remains horizontal after the mounting plate 511 is leveled. If the mounting plate 511 is too short, the support and stability will be insufficient, and the blade body 515 will easily shift due to gravity after being leveled.

[0068] Optionally, the area of ​​each adjustment zone 5113 occupies one-quarter to one-third of the area of ​​the top surface of the mounting plate 511; wherein, the first screw holes 5114 in each adjustment zone 5113 are arranged in a rectangular array. Similarly, this design helps to keep the blade body 515 horizontal.

[0069] Optionally, the position fixing component is a strap 580 that is tied around the outer periphery of the mounting handle plate 511;

[0070] It should be noted that Example 1 uses strap 580; as Figure 22 As shown, the position fixing component can also be a ring buckle 590 that can be detachably fixed to the mounting handle plate 511.

[0071] Optionally, a transition neck 5115 is provided on the side of the mounting plate 511 that is connected to the blade body 515. The width of the transition neck 5115 gradually decreases from the direction close to the blade body 515 until it is equal to the width of the blade body 515.

[0072] Optionally, the blade body 515 has a cavity 5151 inside, with an opening 5152 on its bottom surface; the opening 5152 communicates with the cavity 5151, and its front and rear faces form a cutting edge. Optionally, the bottom end of the cutting edge forms a chamfer 5153 for smoothing the material, and the chamfer 5153 is an arc-shaped chamfer 5153. This blade design helps improve the smoothing quality.

[0073] Optionally, the front surface of the blade body 515 is provided with a viewing window 5154 for observing the internal cavity 5151.

[0074] like Figure 21 As shown, based on Embodiment 1, a protective sleeve 571 is preferably provided around a portion of the vacuum suction pipe 570. The protective sleeve 571 is designed to prevent damage to the vacuum suction pipe 570.

[0075] Optionally, it also includes two third position sensors 530 spaced apart at the front and rear limit ends of the moving path of the mounting handle plate 511; the mounting handle plate 511 is provided with a third sensing ridge 513 protruding outward, the third sensing ridge 513 being located within the sensing area of ​​the two third position sensors 530 at the front and rear intervals. The third position sensors 530 (530) and the synchronous belt linear drive module are electrically connected to the control system.

[0076] Optionally, an auxiliary plate 514 is detachably connected to the side of the mounting plate 511 away from the blade body 515; one side of the auxiliary plate 514 is detachably connected to the mounting plate 511, and the other side extends outward from the blade body 515 to form a protrusion, the protrusion having a through-hole 5141; the vacuum suction pipe 570 is arranged to pass through the top surface of the mounting plate 511 and passes through the through-hole 5141 from top to bottom. Optionally, the third sensing convex strip 513 has an L-shaped structure, which is composed of a horizontal strip 5131 and a vertical strip 5132; the horizontal strip 5131 is detachably connected to the auxiliary plate 514, and the vertical strip 5132 extends out from the through-hole 5141 from top to bottom, so that the bottom end of the vertical strip 5132 is located within the sensing area of ​​the front and rear interval regions of the two third position sensors 530.

[0077] Optionally, the third position sensor 530 is detachably connected to the horizontal platform 700 via a position adjustment component 540, so that the position of the third position sensor 530 is adjustable. Optionally, the position adjustment component 540 includes a base plate 541 and two vertically arranged limiting plates 542; the left and right sides of the base plate 541 are respectively provided with limiting plates 542 at intervals; the third position sensor 530 is embedded in the base plate 541, and its sensing area is located in the space between the two limiting plates 542; wherein the third sensing protrusion 513 can move into the space between the two limiting plates 542 after moving back and forth; wherein the base plate 541 is provided with fastening holes, and the platform surface 700 is provided with a plurality of reserved fastening holes, the number of reserved fastening holes on the platform surface 700 being greater than the number of fastening holes on the base plate 541; by fasteners being installed on the fastening holes of the base plate 541 and the reserved fastening holes of the platform surface 700, the base plate 541 can be detachably installed on the platform surface 700, and its position can be adjusted. Optionally, the third sensing protrusion 513 has an L-shaped structure, which is composed of a horizontal bar 5131 and a vertical bar 5132; the horizontal bar 5131 is detachably connected to the side of the mounting plate 511 away from the blade body 515, and the vertical bar 5132 extends from top to bottom and is inserted into the space between the two limiting plates 542.

[0078] By using the aforementioned position adjustment component 540, the position of the third position sensor 530 can be flexibly adjusted according to requirements, and the third sensing protrusion 513 can accurately enter the sensing area, improving the accuracy and reliability of sensing.

[0079] The design of the auxiliary plate 514 and its through-hole 5141 facilitates the adjustment of the position of the third sensing protrusion 513 and limits the arrangement of the vacuum suction pipe 570, thereby improving the compactness of the equipment layout.

[0080] Optionally, the crossbar 5131 has an elongated hole, and the mounting plate 511 has a fastening hole on the side away from the blade body 515. Fasteners are used to install the mounting plate 511 into the elongated hole and the fastening hole of the mounting plate 511, allowing the mounting plate 511 to be detachably connected to the third sensing protrusion 513. This facilitates the disassembly, installation, and position adjustment of the third sensing protrusion 513.

[0081] Optionally, the bottom surface of the mounting handle plate 511 is provided with a slider 550, and the horizontal platform surface 700 is provided with a Y-axis slide rail 560; the slider 550 is slidably connected to the Y-axis slide rail 560 so that the mounting handle plate 511 can slide back and forth on the horizontal platform surface 700 along the Y-axis direction.

[0082] Optionally, the Y-axis linear drive component 520 includes two rotating seats 521 mounted on a horizontal platform 700, a synchronous belt 522, and a Y-axis drive motor 523; a driven wheel is rotatably connected between the two rotating seats 521, and a drive wheel is provided on the output shaft of the Y-axis drive motor 523. The synchronous belt 522 is wound between the driven wheel and the drive wheel, and the Y-axis drive motor 523 drives the drive wheel to rotate, thereby driving the synchronous belt 522 to move.

[0083] Optionally, the bottom of the rotating base 521 is provided with an elongated hole, and the horizontal platform surface 700 is provided with several fastening holes. Fasteners are installed in the elongated hole of the rotating base 521 and the fastening holes of the horizontal platform surface 700, allowing the rotating base 521 to be detachably mounted on the horizontal platform surface 700, and its position to be adjustable. This design facilitates the disassembly, installation, and position adjustment of the synchronous belt linear drive module.

[0084] Optionally, the Y-axis linear drive component 520 further includes an L-shaped fixing seat 524; both ends of the drive wheel axle are coaxially rotatably connected to the output shaft of the Y-axis drive 523 and the L-shaped fixing seat 524 respectively; the bottom of the L-shaped fixing seat 524 is provided with an elongated hole, and the horizontal platform surface 700 is provided with several fastening holes. Fasteners are installed on the elongated hole of the L-shaped fixing seat 524 and the fastening holes of the horizontal platform surface 700, so that the L-shaped fixing seat 524 can be detachably installed on the horizontal platform surface 700 and its position can be adjusted.

[0085] This design facilitates the disassembly, installation, and position adjustment of the synchronous belt linear drive module.

[0086] 2. Optimization and improvement of the detection and unloading mechanism assembly:

[0087] The following structural optimizations were made to the lifting screen mechanism 300:

[0088] Optionally, the lifting screen mechanism 300 includes a second Z-axis linear drive component and a screen 340 located above the main tank (115); the second Z-axis linear drive component includes a support frame 310 fixed on the frame, a mounting bracket 320, and a second Z-axis linear drive assembly 330; wherein, the mounting bracket 320 is used to keep the screen 340 horizontally positioned, and it is vertically slidably mounted on the support frame 310 along the Z-axis direction, so that it can move on the support frame 310 along the Z-axis direction; the second Z-axis linear drive assembly 330 is mounted on the support frame 310, and its output shaft is connected to the mounting bracket 320, and the second Z-axis linear drive assembly 330 drives the mounting bracket 320 to move up and down, so that the screen 340 can be lowered and immersed in the liquid in the main tank 115. Optionally, the second Z-axis linear drive assembly 330 includes a second Z-axis drive motor 331 fixed on the support frame 310, a second drive screw 332, and a second threaded seat 333 for threaded connection of the second drive screw 332; the second drive screw 332 is coaxially mounted on the output shaft of the second Z-axis drive motor 331, and the second threaded seat 333 is mounted on the mounting bracket 320, so that the second Z-axis drive motor 331 drives the second drive screw 332 to rotate along its axis, thereby driving the mounting bracket 320 and the mesh plate 340 to move up and down.

[0089] Optionally, the support frame 310 is provided with two Z-axis slide rails 334, which are arranged parallel to each other at intervals along the Z-axis direction; the mounting bracket 320 includes a horizontally arranged bracket 321 for supporting the mesh plate 340 and two vertical tie rods 322 connected to both sides of the bracket 321; the top of the vertical tie rod 322 is provided with a slide bar 323, which is slidably connected to the Z-axis slide rail 334 respectively; wherein, the two slide bars 323 are connected by the second threaded seat 333, so that the second Z-axis drive motor 331 drives the second drive screw 332 to rotate along its axis, drives the slide bar 323 to slide linearly along the Z-axis slide rail 334, and drives the mounting bracket 320 and the mesh plate 340 to move up and down.

[0090] By adopting the aforementioned design of the second Z-axis linear drive component, the stable lifting and lowering of the mesh plate 340 is achieved while ensuring that the mesh plate 340 is set horizontally.

[0091] Optionally, the mounting bracket 320 has a second sensing protrusion 324 extending outward from its back side, and two second position sensors 350 are spaced apart at the upper limit end and lower limit end of the moving path of the mounting bracket 320, and the second sensing protrusion 324 is located within the sensing area of ​​the upper and lower spaced regions of the two second position sensors 350; Optionally, the second Z-axis linear drive component and the second position sensor 350 are both electrically connected to the control system.

[0092] Similarly, the second position sensor 350 senses and transmits the data to the control system for processing. The control system controls the state of the second Z-axis linear drive component to achieve automated movement control of the mesh plate 340 in the Z-axis direction.

[0093] Optionally, the second position sensor 350 is an infrared optical position sensor, which is detachably connected to the support frame 310. This design facilitates adjustment of the upper and lower limit sensing positions of the mesh plate 340.

[0094] Optionally, the vertical tie rod 322 is detachably connected to the bracket 321, and the bracket 321 is detachably connected to the mesh panel 340. The detachable design facilitates the replacement and maintenance of each component.

[0095] Optionally, the bracket 321 is equipped with a level, such as a bubble level.

[0096] 3. Optimization and improvement of the discharge mechanism:

[0097] The stable moving discharge mechanism 100 includes a material pool 110, a stable platform 120, and a bidirectional linear motion module. The stable platform 120 includes an L-shaped carrier plate. The L-shaped carrier plate is composed of a vertical plate 121 and a support plate 122, and triangular reinforcing blocks 123 are provided on both sides of the plate. The triangular reinforcing blocks 123 are respectively connected to the vertical plate 121 and the support plate 122. The material pool 110 is detachably mounted on the support plate 122, which is horizontally positioned to keep the material pool 110 horizontal. The bottom of the material pool 110 is provided with a discharge pipe 113, and the support plate 122 is provided with an opening 122 that matches the discharge pipe 113. 1. The discharge pipe 113 passes through the opening 1221 and extends below the stable platform 120; wherein, the bidirectional linear motion module includes a first Z-axis linear drive component 130 and an X-axis linear drive component 140; the stable platform 120 is mounted on the first Z-axis linear drive component 130 so that the first Z-axis linear drive component 130 drives the stable platform 120 to move up and down, and the first Z-axis linear drive component 130 is mounted on the X-axis linear drive component 140 so that the X-axis linear drive component 140 drives the first Z-axis linear drive component 130 to move left and right, thereby driving the stable platform 120 to move left and right.

[0098] Optionally, the first Z-axis linear drive component 130 is a lead screw linear motion module, which includes a first Z-axis drive 131, a first drive lead screw 132 coaxially mounted on the output shaft of the first Z-axis drive 131, and a first threaded seat 134 for threaded connection of the first drive lead screw 132; a first cylindrical through hole is provided in the middle of the vertical plate 121 for the first drive lead screw 132 to pass through coaxially; wherein, the first drive lead screw 132 can slide freely in the first cylindrical through hole; the top surface of the vertical plate 121 is provided with the first threaded seat 134 at the first cylindrical through hole, and the first threaded seat 134 is coaxially arranged with the first drive lead screw 132 and the first cylindrical through hole, so that the first Z-axis drive 131 drives the first drive lead screw 132 to rotate along its axis, thereby driving the L-shaped carrier plate to move up and down. Optionally, the first Z-axis linear drive component 130 further includes two vertically arranged positioning slide rods 133; the two sides of the vertical plate 121 are respectively provided with second cylindrical through holes for the positioning slide rods 133 to pass through coaxially, and the second cylindrical through holes match the positioning slide rods 133; wherein, the outer peripheral surface of the positioning slide rod 133 abuts against the inner wall surface of the second cylindrical through hole, so that the positioning slide rod 133 can slide up and down in the second cylindrical through hole, so that the first Z-axis drive motor 131 drives the first drive screw 132 to rotate, thereby moving the L-shaped carrier plate on the positioning slide rods 133.

[0099] Specifically, after printing, the first Z-axis linear drive component 130 moves the stabilizing platform 120 and the material tank 110 downwards as a whole. Then, the X-axis linear drive component 140 moves the first Z-axis linear drive component 130, the stabilizing platform 120, and the material tank 110 to the left or right, moving the material tank 110 to the edge of the equipment. This makes it easier for the operator to place the material bucket under the material tank 110's discharge pipe 113 to receive the material. Similarly, through the above process, since the material tank 110 and the stabilizing platform 120 are detachable, moving the material tank 110 to the edge of the equipment also facilitates the operator's disassembly and replacement of the material tank 110.

[0100] If the material pool 110 is simply connected to a moving mechanism and driven to move, horizontal or positional displacement is likely to occur during the movement of the material pool 110. This application addresses this by designing a stable platform 120 constructed from an L-shaped carrier plate and triangular reinforcing blocks 123 to support the material pool 110. This platform works in conjunction with the Z-axis lead screw linear motion module, the slide table 142, and the X-axis linear drive component 140 to achieve smooth movement of the material pool 110. Furthermore, the positioning slide rod 133 assists in further improving the stability of the material pool 110's movement.

[0101] In summary, the above design allows the material tank 110 to be easily moved to the edge of the equipment, facilitating manual operation for discharging and disassembling. Furthermore, in situations where material changes and cleaning may be frequent, this design helps maintain the position and level stability of the material tank 110 during convenient movement, ensuring it remains level or stable after resetting. Therefore, this stable moving discharging mechanism 100 effectively ensures the stability of the material tank 110 during movement and resetting, achieving a balance between ease of operation and stability. This improves operational convenience and reduces manpower consumption, thereby increasing production efficiency.

[0102] Optionally, it also includes two first position sensors 150; a first sensing ridge 124 is provided protruding outward from the back of the vertical plate 121, and the two first position sensors 150 are spaced apart at the upper limit end and the lower limit end of the moving path of the vertical plate 121, and the first sensing ridge 124 is located in the sensing area of ​​the upper and lower interval of the two first position sensors 150; the first Z-axis linear drive component 130 and the first position sensors 150 are both electrically connected to the control system.

[0103] During use, the position of the first sensing protrusion 124 can be accurately sensed by two first position sensors 150 located at the upper and lower limit ends, thereby accurately sensing the vertical movement of the material pool 110. The sensing information is fed back to the control system by the first position sensors 150. The control system processes and analyzes the information and feeds back to control the first Z-axis linear drive component 130, thereby accurately moving the material pool 110 up to the horizontal platform 700 before printing, so that the screen 340 can be immersed in the material pool 110 later. It also enables the material pool 110 to be accurately moved down below the horizontal platform 700 for material discharge after printing.

[0104] Optionally, the X-axis linear drive component 140 includes a first X-axis drive 141, a slide table 142, and two parallel X-axis slide rails 143; the two X-axis slide rails 143 are arranged parallel to each other at intervals along the X-axis direction; the first Z-axis linear drive component 130 is fixedly mounted on the top surface of the slide table 142, and the bottom sides of the slide table 142 are slidably connected to the X-axis slide rails 143, and the output shaft of the first X-axis drive 141 is connected to the slide table 142, so that the first X-axis drive 141 drives the slide table 142 to slide linearly along the X-axis slide rails 143, thereby driving the first Z-axis linear drive component 130 and the stable platform 120 to move left and right.

[0105] Optionally, the bottom of the positioning slide rod 133 is fixed to the top surface of the slide table 142, and the top surface of the slide table 142 is provided with a locking member 135 for locking and fixing the positioning slide rod 133.

[0106] The bottom of the two locking plates is fixed to the slide table 142 by a screw and nut assembly, and the two locking plates are locked by the screw and nut assembly to stabilize the positioning slide rod 133, thereby further improving the stability of the movable stable platform 120 and the material pool 110.

[0107] Optionally, the X-axis linear drive component 140 further includes two position sensors (not shown in the figure); the two position sensors are spaced apart at the left and right limit ends of the sliding table 142's movement path; the sliding table 142 has a protruding strip extending outward, and the protruding strip is located within the sensing area of ​​the space between the two position sensors; the X-axis linear drive component 140 and the two position sensors are all electrically connected to the control system.

[0108] Similarly, by sensing the position sensor, transmitting the data to the control system for processing, and then controlling the state of the X-axis linear drive component 140, the first Z-axis linear drive component 130, the stable platform 120, and the material pool 110 are automatically moved in the X-axis direction.

[0109] Optionally, the stabilizing stage 120 is equipped with a level, such as a bubble level. This design allows the stability of the stabilizing stage 120 to be visually observed.

[0110] Optionally, the bottom end of the material pool 110 is bent horizontally away from the outer peripheral wall of the material pool 110 to form a fixed plate 112. The supporting plate 122 and the fixed plate 112 are provided with matching fastening holes, wherein fasteners are installed in the fastening holes of the fixed plate 112 and the supporting plate 122, so that the fixed plate 112 can be detachably and horizontally installed on the supporting plate 122. This design further improves the stability of the material pool 110 installation and the ease of assembly and disassembly.

[0111] Optionally, the device also includes a material hopper and a funnel; the material hopper and the funnel are installed in the space between the two parallel X-axis slide rails 143; a valve 114 is provided on the discharge pipe 113. This design results in high space utilization of the overall equipment and convenient material discharge operation.

[0112] For the collaborative design of various institutions:

[0113] A position sensor for sensing the stroke is designed in the first Z-axis linear drive component 130 of the stable moving discharge mechanism 100, and a position sensor for sensing the stroke is designed in the second Z-axis linear drive component 330 of the lifting screen mechanism 300. Through the position sensor, the first Z-axis linear drive component 130, the second Z-axis linear drive component 330 and the control system are electrically connected, the material pool 110 can be controlled to rise and reset to the preset position. When the screen 340 falls to the preset position, in this state, the screen 340 is just immersed in the material liquid and will not hit the bottom surface of the material pool 110.

[0114] In addition, the moving scraper mechanism 500 works in conjunction with the stable moving discharge mechanism 100 and the lifting screen mechanism 300. When the material pool 110 rises and resets to the preset position, and the screen 340 descends to the preset position, the scraper 510 can be positioned above the screen 340, with the blade of the scraper 510 positioned on the liquid surface. Through the design of multiple mechanism stroke control, the printing process is automated and operates with high quality.

[0115] It should be noted that:

[0116] The aforementioned printing light source mechanism is existing technology, and those skilled in the art can implement it using existing printing light source mechanisms based on the concept of this application.

[0117] The position sensor is an infrared optical position sensor, which is a non-contact sensor that uses infrared light to detect the position or displacement of a target object. It determines the precise position of the object by emitting infrared light and analyzing changes in the reflected light signal. It is widely used in industrial automation, consumer electronics, robot navigation, and other fields, which will not be elaborated upon here.

[0118] A ball screw linear motion module (also known as a ball screw module) is a core transmission mechanism that converts rotary motion into high-precision linear motion; its working principle will not be elaborated here. Similarly, the working principle of a synchronous belt linear drive module is also publicly available and will not be elaborated here.

[0119] The control system can realize functions such as information reception, information processing, feedback control of the printing light source mechanism and the driving mechanism, and achieve automated operation of the equipment through information reception and feedback control.

[0120] The control system can be a central processing unit, a microcontroller unit, or a field-programmable gate array (FPGA). This control system is existing technology; it has a programmable memory for storing programs, executing user-oriented instructions such as logical operations, sequential control, and timing, and controlling various types of machinery or production processes through digital or analog input / output. As this is existing technology, its specific details will not be elaborated further. The control system can receive and process information from sensing components such as position sensors, and after processing and analyzing the information, it provides feedback to adjust the parameters of the laser generator and other components in the printing light source mechanism, as well as the motion trajectory of the drive mechanism.

[0121] Additionally, an information input device for inputting information into the control system and a display device for displaying control system information may be provided, including but not limited to a control panel integrating information input and display functions, or a display panel for displaying information combined with an input device such as a keyboard. Of course, in some possible embodiments, a remote computer host or computer (not shown) may also be included, and the control system communicates with these remote devices.

[0122] Those skilled in the art should understand that although many problems exist in the prior art, each embodiment or technical solution of this application can be improved in only one or a few aspects, without necessarily solving all the technical problems listed in the prior art or background art at the same time. Those skilled in the art should understand that content not mentioned in a claim should not be construed as a limitation on that claim. The terms "first," "second," etc. (if present) in the specification, claims, and accompanying drawings of the embodiments of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An adjustable horizontal single-sided moving scraper mechanism for an SLA 3D printer, characterized in that: It includes a platform surface (700), a Y-axis linear drive component (520) mounted on the platform surface (700), and a scraper (510); the scraper (510) includes a mounting plate (511) and a blade body (515) connected to the mounting plate (511); The mounting plate (511) has adjustment areas (5113) on its left and right sides respectively. The adjustment areas (5113) have several first screw holes (5114) that extend from their top surface to their bottom surface. The horizontal platform (700) has two spaced and parallel Y-axis slide rails (560). Each Y-axis slide rail (560) is slidably connected to a slider (550). The top surface of the slider (550) has several second screw holes that match the first screw holes (5114). The slider is threaded to the first screw holes (5114) and the second screw holes by a height adjustment screw fastener (5116), so that the left and right sides of the mounting plate (511) can be detachably mounted on the slider (550), and the height of the two adjustment areas (5113) can be adjusted. The Y-axis linear drive component (520) is a synchronous belt linear drive module; the mounting plate (511) has a belt-passing groove (5112) between the adjustment areas (5113) that extends from its front surface to its rear surface. The belt-passing groove (5112) is used for the synchronous belt (522) to pass through. The synchronous belt (522) moves to drive the mounting plate (511) and the slider (550) to move back and forth on the Y-axis slide rail (560). The blade body (515) is provided with a vacuum suction pipe (570) communicating with its internal cavity (5151). The mounting plate (511) has a position fixing component for fixing the vacuum suction pipe (570), so that the vacuum suction pipe (570) is arranged to pass through the top surface of the mounting plate (511) or through the upper and lower ring interval space of the synchronous belt (522).

2. The adjustable horizontal single-sided moving scraper mechanism for SLA 3D printers according to claim 1, characterized in that: The length of the mounting plate (511) is 1.2-2.5 times the length of the blade body (515); The width of the mounting plate (511) is more than twice the width of the blade body (515).

3. The adjustable horizontal single-sided moving scraper mechanism for SLA 3D printers according to claim 1, characterized in that: Each adjustment zone (5113) occupies one-quarter to one-third of the area of ​​the top surface of the mounting plate (511); In each adjustment zone (5113), the first screw hole (5114) is arranged in a rectangular array.

4. The adjustable horizontal single-sided moving scraper mechanism for SLA 3D printers according to claim 1, characterized in that: The position fixing component is a strap (580) that is tied around the outer periphery of the mounting handle plate (511); and / or, the position fixing component is a ring buckle (590) that is detachably fixed to the mounting handle plate (511).

5. The adjustable horizontal single-sided moving scraper mechanism for SLA 3D printers according to claim 1, characterized in that: It also includes two third position sensors (530) spaced apart at the front and rear limit ends of the moving path of the mounting plate (511). The mounting handle plate (511) is provided with a third sensing protrusion (513) extending outward, and the third sensing protrusion (513) is located in the sensing area of ​​the front and rear interval region of the two third position sensors (530). The third position sensor (530) and the synchronous belt linear drive module are electrically connected to the control system.

6. The adjustable horizontal single-sided moving scraper mechanism for SLA 3D printers according to claim 5, characterized in that: An auxiliary plate (514) is detachably connected to the side of the mounting plate (511) away from the blade body (515). The auxiliary plate (514) is detachably connected to the mounting plate (511) on one side, and extends outward from the blade body (515) on the other side to form a protrusion. The protrusion is provided with a through-hole (5141). The vacuum suction pipe (570) is arranged to pass through the top surface of the mounting handle plate (511) and passes through the insertion port (5141) from top to bottom.

7. The adjustable horizontal single-sided moving scraper mechanism for SLA 3D printers according to claim 6, characterized in that: The third sensing protrusion (513) has an L-shaped structure, which is composed of a horizontal strip (5131) and a vertical strip (5132); The horizontal bar (5131) is detachably connected to the auxiliary plate (514), and the vertical bar (5132) extends from top to bottom through the through-hole (5141), so that the bottom end of the vertical bar (5132) is located in the sensing area of ​​the front and rear interval area of ​​the two third position sensors (530).

8. The adjustable horizontal single-sided moving scraper mechanism for SLA 3D printers according to claim 1, characterized in that: A protective sleeve (571) is fitted over a section of the vacuum suction pipe (570). And / or, the mounting plate (511) has a transition neck (5115) on the side connected to the blade body (515), and the width of the transition neck (5115) gradually decreases from the direction close to the blade body (515) until it is equal to the width of the blade body (515); And / or, the blade body (515) has a cavity (5151) inside, and its bottom surface is provided with an opening (5152); the opening (5152) communicates with the cavity (5151), and its front end face and rear end face form a blade.

9. The adjustable horizontal single-sided moving scraper mechanism for SLA 3D printers according to claim 8, characterized in that: The front surface of the blade (515) is provided with a viewing window (5154) for observing the internal cavity (5151). And / or, the bottom end of the blade forms a chamfer (5153) for smoothing the liquid, the chamfer (5153) being an arc-shaped chamfer (5153).

10. An SLA 3D printer, characterized in that: Includes the movable scraper mechanism (500) as described in any one of claims 1-8, the material tank (110), the detection and feeding mechanism assembly, and the printing light source mechanism for providing curing light and disposed above the material tank (110); The detection and feeding mechanism assembly includes a lifting mesh plate mechanism (300); the scraper (510) of the moving scraper mechanism (500) moves back and forth on the liquid surface of the material pool (110).

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