A convenient disassembly and anti-slip movable scraper mechanism for a 3D printer and an SLA 3D printer.

Abstract

The application relates to the technical field of SLA 3D printers, in particular to a 3D printer convenient-to-disassemble anti-skid moving scraper mechanism and an SLA 3D printer. The moving scraper mechanism comprises a water platform surface, a synchronous belt linear driving module and a scraper. The scraper comprises a mounting handle plate, a cutter body and a fixing piece. The top surface of the mounting handle plate is provided with a positioning groove, the bottom surface of the positioning groove is provided with a belt passing groove, the fixing piece is matched with the positioning groove in shape and can be detachably connected through a fastener, so that the fixing piece is arranged on the positioning groove, and the left and right side surfaces of the fixing piece are in abutment with the left and right side inner wall surfaces of the positioning groove. The moving scraper mechanism designed in the application can be applied to the case that replacement and adjustment components are relatively frequent, can be beneficial to conveniently and quickly positioning and assembling the synchronous belt and the scraper, can prevent the synchronous belt from slipping off, and can flexibly adjust and control the scraper stroke to adapt to actual operation requirements.

Description

Technical Field

[0001] This application relates to the field of SLA 3D printer technology, and particularly to a convenient disassembly and anti-slip movable scraper mechanism for a 3D printer and an SLA 3D printer. Background Technology

[0002] Rapid prototyping technology, also known as 3D printing, is an advanced manufacturing technology based on the material deposition method. It can create physical objects or physical models by adding materials using molding equipment based on the three-dimensional model data of parts or objects.

[0003] In 3D printing technology, SLA (Stereolithography) 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 mechanism 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.

[0004] In some 3D printers, the movement of the scraper is primarily achieved through a synchronous belt linear motion module, specifically by connecting the scraper to the slider rail and using a synchronous belt drive. During this process, the synchronous belt is prone to slipping and falling off. If the synchronous belt is positioned on the slider or scraper assembly using an mounting component, the installation and removal of the synchronous belt and scraper becomes inconvenient when installing or replacing them.

[0005] In SLA 3D printers suitable for small-scale or low-volume product printing, it is sometimes necessary to adjust the size of the feed tank and scraper according to the product size, and adjust the scraper stroke. If the positioning, installation, and disassembly of the timing belt and scraper are inconvenient, it will lead to operational inconvenience. In addition, when changing the model of scraper and other components, the scraper stroke also needs to be adjusted frequently. Therefore, how to design a movable scraper assembly that can be used in situations where components are frequently changed and adjusted, which can not only facilitate the positioning and assembly of the timing belt and scraper, but also flexibly adjust and control the scraper stroke to adapt to actual operating needs, is precisely the problem that needs to be solved in this field. Utility Model Content

[0006] To address the problems of the prior art mentioned in the background section, this application provides a convenient disassembly and anti-slip movable scraper mechanism for 3D printers, the technical solution of which is as follows:

[0007] This 3D printer uses a conveniently detachable, non-slip movable scraper mechanism, which includes a horizontal platform, a Y-axis linear drive component mounted on the horizontal platform, and a scraper; the Y-axis linear drive component is a synchronous belt linear drive module; the scraper includes a mounting plate, a blade body connected to the mounting plate, and a fixing plate; the top surface of the mounting plate has a positioning groove extending from its front surface to its rear surface, and the bottom surface of the positioning groove has a belt-passing groove extending from the front surface of the mounting plate to the rear surface of the mounting plate; the fixing plate matches the shape of the positioning groove and is detachably connected by fasteners, so that the fixing plate is mounted on the positioning groove, and the left and right sides of the fixing plate are aligned with the positioning groove. The left and right inner walls are abutted against each other; the bottom surface of the mounting handle plate is slidably mounted on the horizontal platform along the Y-axis, so that it can move on the horizontal platform along the Y-axis; the belt slot is used for the synchronous belt of the synchronous belt linear drive module to pass through, and the synchronous belt moves to drive the mounting handle plate to move back and forth; it also includes two third position sensors that are spaced apart at the front limit end and the rear limit end of the moving path of the mounting handle plate; the third position sensors are detachably connected to the horizontal platform through a position adjustment component, and the mounting handle plate is provided with a third sensing protrusion extending outward, and the third sensing protrusion is located in the sensing area of ​​the front and rear interval area of ​​the two third position sensors.

[0008] In some embodiments, the bottom surface of the positioning groove and the fixing plate are provided with matching fastening holes; wherein, fasteners are installed in the fastening holes of the positioning groove and the fastening holes of the fixing plate, so that the fixing plate can be detachably installed on the positioning groove.

[0009] In some embodiments, the third position sensor is detachably connected to the horizontal platform via a position adjustment component, so that the position of the third position sensor is adjustable; wherein, the third position sensor (530), the synchronous belt linear drive module, and the control system are electrically connected.

[0010] In some embodiments, the position adjustment component includes a base plate and two vertically arranged limiting plates; the left and right sides of the base plate are respectively provided with limiting plates at intervals; the third position sensor is embedded in the base plate, and its sensing area is located in the space between the two limiting plates; wherein the third sensing protrusion can move into the space between the two limiting plates after moving back and forth; wherein the base plate is provided with fastening holes, and the platform surface is provided with a plurality of reserved fastening holes, the number of reserved fastening holes on the platform surface being greater than the number of fastening holes on the base plate; by fasteners being installed on the fastening holes of the base plate and the reserved fastening holes of the platform surface, the base plate can be detachably installed on the platform surface, and its position can be adjusted.

[0011] 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 side of the mounting plate away from the blade body, and the vertical bar extends from top to bottom and is inserted into the space between the two limiting plates.

[0012] In some embodiments, the crossbar is provided with an elongated hole, and the mounting handle plate is provided with a fastening hole on the side away from the blade body. The mounting handle plate and the third sensing protrusion are detachably connected by fasteners installed on the elongated hole and the fastening hole of the mounting handle plate.

[0013] In some embodiments, the bottom surface of the mounting handle is provided with a slider, and the horizontal platform surface is provided with a Y-axis slide rail; the slider is slidably connected to the Y-axis slide rail so that the mounting handle can slide back and forth on the horizontal platform surface along the Y-axis direction.

[0014] In some embodiments, the Y-axis linear drive component includes two rotating seats mounted on a horizontal platform, a synchronous belt, and a Y-axis drive motor; a driven wheel is rotatably connected between the two rotating seats, and a drive wheel is provided on the output shaft of the Y-axis drive motor. The synchronous belt is wound between the driven wheel and the drive wheel, and the Y-axis drive motor drives the drive wheel to rotate, thereby driving the synchronous belt to move.

[0015] In some embodiments, the bottom of the rotating seat is provided with an elongated hole, and the horizontal platform surface is provided with a plurality of fastening holes. By fastening fasteners installed on the elongated hole of the rotating seat and the fastening holes of the horizontal platform surface, the rotating seat can be detachably installed on the horizontal platform surface, and its position can be adjusted.

[0016] In some embodiments, the Y-axis linear drive component further includes an L-shaped fixing seat; both ends of the drive wheel axle are coaxially rotatably connected to the output shaft of the Y-axis drive and the L-shaped fixing seat respectively; the bottom of the L-shaped fixing seat is provided with an elongated hole, and the horizontal platform surface is provided with a plurality of fastening holes. By fastening fasteners installed on the elongated hole of the L-shaped fixing seat and the fastening holes of the horizontal platform surface, the L-shaped fixing seat can be detachably installed on the horizontal platform surface, and its position can be adjusted.

[0017] In some embodiments, the bottom of the Y-axis drive is provided with a fixing plate, the bottom of the fixing plate is provided with an elongated hole, and the horizontal platform surface is provided with a plurality of fastening holes. By fastening fasteners installed on the elongated hole of the fixing plate and the fastening holes of the horizontal platform surface, the fixing plate can be detachably installed on the horizontal platform surface, and its position can be adjusted.

[0018] 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.

[0019] Based on the above, compared with the prior art, this application has the following beneficial effects:

[0020] Through the cooperation of the positioning groove and the threading groove, and due to the limiting design of the fixing plate and the positioning groove, after the synchronous belt is installed in the threading groove, the fixing plate can be quickly positioned and installed above the threading groove. Furthermore, the fastening holes on the fixing plate and the positioning groove correspond one-to-one, allowing for quick and easy installation by simply tightening the fasteners. This facilitates the installation and removal of the synchronous belt and prevents it from slipping. In addition, since the synchronous belt, installed in the threading groove, moves the mounting handle plate, a third position sensor and a third sensing protrusion with adjustable orientation are designed at the front and rear limit points of the stroke. This effectively senses the scraper's stroke, ensuring that the scraper moves within the limited stroke range and preventing it from exceeding its stroke and colliding with the material pool.

[0021] The movable scraper mechanism designed in this application is suitable for situations where parts need to be replaced and adjusted frequently. It facilitates the quick and easy positioning and assembly of the timing belt and the scraper, preventing the timing belt from slipping off, and allows for flexible adjustment and control of the scraper stroke to adapt to actual operating requirements. Attached Figure Description

[0022] 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.

[0023] Figure 1 A schematic diagram of the moving scraper mechanism of Embodiment 1 provided in this application.

[0024] Figure 2 Schematic diagram of the SLA 3D printer structure provided in Embodiment 2 of this application Figure 1 ;

[0025] Figure 3 A partial disassembled structural diagram of the SLA 3D printer provided in Embodiment 2 of this application;

[0026] Figure 4 A schematic diagram of the moving scraper mechanism of Embodiment 2 provided in this application;

[0027] Figure 5 A partial structural diagram of the movable scraper mechanism of Embodiment 2 provided in this application Figure 1 ;

[0028] Figure 6 for Figure 4 A partial structural breakdown diagram;

[0029] Figure 7 for Figure 4 A magnified view of a portion of the image;

[0030] Figure 8 A schematic diagram of the Y-axis linear drive component provided in Embodiment 2 of this application;

[0031] Figure 9 for Figure 8 A magnified view of a portion of the image;

[0032] Figure 10 A schematic diagram of the moving discharge mechanism (removing material pool) of Embodiment 2 provided in this application;

[0033] Figure 11 for Figure 9 A magnified view of a section at point A in the middle;

[0034] Figure 12 A partial structural schematic diagram of the movable discharge mechanism (installation tank) of Embodiment 2 provided in this application;

[0035] Figure 13 This is a schematic diagram of the material tank structure of Embodiment 2 provided in this application;

[0036] Figure 14 A schematic diagram of the stable platform structure in the moving discharge mechanism of Embodiment 2 provided in this application;

[0037] Figure 15 A schematic diagram of the lifting screen mechanism of Embodiment 2 provided in this application Figure 1 ;

[0038] Figure 16 A schematic diagram of the lifting screen mechanism of Embodiment 2 provided in this application Figure 2 ;

[0039] Figure 17 A partial structural schematic diagram of the movable scraper mechanism of Embodiment 3 provided in this application.

[0040] Figure label:

[0041] 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 groove; 121. Vertical plate; 122. Bearing plate; 123. 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, slide bar; 324, second sensing convex bar; 331, second Z-axis drive motor; 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; 511. Mounting shank plate; 512. Fixing plate; 513. Third sensing convex strip; 515. Tool body; 5111. Positioning groove; 5112. Belt groove; 5131. Horizontal bar; 5132. Vertical bar; 521. Rotating seat; 522. Synchronous belt; 523. Y-axis drive motor; 5231. Fixing plate; 524. L-shaped fixing seat; 541. Base plate; 542. Limiting plate; 571. Protective sleeve; 710. Opening. Detailed Implementation

[0042] 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.

[0043] 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.

[0044] This application provides, as follows: Figure 2-15 Example 2 shows an SLA 3D printer, which includes a frame, a stable moving material feeding 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).

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] The specific optimizations and improvements for each of the above-mentioned institutions are as follows:

[0052] 1. Optimization and improvement of the 500-type moving scraper mechanism:

[0053] The 500 mobile scraper mechanism features convenient assembly / disassembly and an anti-slip design.

[0054] like Figure 1 Example 1 Figure 2-15As shown in Example 2, the 3D printer's easy-to-disassemble anti-slip movable scraper mechanism 500 includes a horizontal platform 700, a Y-axis linear drive component 520 mounted on the horizontal platform 700, and a scraper 510; the Y-axis linear drive component 520 is a synchronous belt linear drive module; the scraper 510 includes a mounting plate 511, a blade body 515 connected to the mounting plate 511, and a fixing plate 512; the top surface of the mounting plate 511 has a positioning groove 5111 extending from its front surface to its rear surface, and the bottom surface of the positioning groove 5111 has a belt-passing groove 5112 extending from the front surface of the mounting plate 511 to the rear surface of the mounting plate 511; wherein, the fixing plate 512 matches the shape of the positioning groove 5111 and is detachably connected by fasteners, so that the fixing plate 512 is mounted on the positioning groove 5111. The left and right sides are in contact with the inner walls of the left and right sides of the positioning groove 5111; the bottom surface of the mounting handle plate 511 is slidably mounted on the horizontal platform 700 along the Y-axis direction, so that it can move on the horizontal platform 700 along the Y-axis direction; the belt slot 5112 is used for the synchronous belt 522 of the synchronous belt linear drive module to pass through, and the synchronous belt 522 moves to drive the mounting handle plate 511 to move back and forth; it also includes two third position sensors 530 that are spaced apart at the front limit end and the rear limit end of the moving path of the mounting handle plate 511; the third position sensors 530 are detachably connected to the horizontal platform 700 through the position adjustment component 540, and the mounting handle plate 511 is provided with a third sensing protrusion 513 protruding outward, and the third sensing protrusion 513 is located in the sensing area of ​​the front and rear spaced areas of the two third position sensors 530. Optionally, the bottom surface of the positioning groove 5111 and the fixing plate 512 are provided with matching fastening holes; wherein, fasteners (bolts, screws, etc.) are installed in the fastening holes of the positioning groove 5111 and the fastening holes of the fixing plate 512, so that the fixing plate 512 can be detachably installed on the positioning groove 5111.

[0055] With the design of positioning groove 5111 and belt threading groove 5112, when using the timing belt 522, after it is installed in the belt threading groove 5112, due to the matching and limiting design of fixing piece 512 and positioning groove 5111, fixing piece 512 can be quickly positioned and installed above belt threading groove 5112. Moreover, the positions of fastening holes on fixing piece 512 and positioning groove 5111 correspond one-to-one. As long as the fastener is tightened, quick fixed installation can be achieved, which is convenient for the timing belt 522 to be installed and removed, and can prevent the timing belt 522 from slipping off.

[0056] Furthermore, since the synchronous belt 522 is installed in the belt threading groove 5112 to drive the mounting plate 511 to move, a third position sensor 530 and a third sensing protrusion 513 are designed at the front and rear limit positions of the stroke to effectively sense the stroke of the scraper 510. The third position sensor 530 senses whether the scraper 510 has reached the front and rear limit positions of the stroke and feeds back to the control system. The control system controls the movement of the Y-axis linear drive component 520, so that the scraper 510 moves within the stroke limit range, avoiding the scraper 510 from exceeding the stroke and colliding with the material pool 110. The position of the third position sensor 530 is adjustable, which is beneficial for adjusting its stroke range design.

[0057] The movable scraper mechanism 500 designed in this application is suitable for situations where parts are frequently replaced and adjusted. It facilitates the quick and easy positioning and assembly of the timing belt 522 and the scraper 510, preventing the timing belt 522 from slipping off, and allows for flexible adjustment and control of the scraper 510's stroke to adapt to actual operating requirements.

[0058] Optionally, the bottom of the belt threading groove 5112 is provided with a toothed plate, and the timing belt 522 is fixed to the toothed plate. The belt threading groove 5112 is used for the timing belt 522 of the timing belt linear drive module to pass through, and the timing belt 522 moves to drive the mounting handle plate 511 to move back and forth.

[0059] Optionally, the third position sensor 530 is detachably connected to the horizontal platform 700 via a position adjustment component 540, allowing the position of the third position sensor 530 to be adjusted. Optionally, the position adjustment component 540 includes a base plate 541 and two vertically arranged limiting plates 542; the limiting plates 542 are respectively spaced apart on the left and right sides of the base plate 541. 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. The third sensing protrusion 513 can move into the space between the two limiting plates 542 after moving back and forth. The base plate 541 is provided with fastening holes, and the platform surface 700 is provided with a number of reserved fastening holes. The number of reserved fastening holes on the platform surface 700 is greater than the number of fastening holes on the base plate 541. Fasteners are installed on the fastening holes of the base plate 541 and the reserved fastening holes of the platform surface 700, so that 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.

[0060] With the above-mentioned position adjustment component 540 structure design, the position of the third position sensor 530 can be flexibly adjusted according to the requirements, and the third sensing protrusion 513 can accurately enter the sensing area, improving the accuracy and reliability of sensing.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] This design facilitates the disassembly, installation, and position adjustment of the synchronous belt linear drive module.

[0067] It should be noted that in Embodiment 1, an L-shaped mounting bracket 524 is used for installation, but other methods may also be used. Figure 17 The installation method is as follows: The bottom of the Y-axis drive 523 is provided with a fixing plate 5231, the bottom of the fixing plate 5231 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 fixing plate 5231 and the fastening holes of the horizontal platform surface 700, so that the fixing plate 5231 can be detachably installed on the horizontal platform surface 700 and its position can be adjusted.

[0068] 2. Optimization and improvement of the discharge mechanism:

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] Similarly, the position sensor senses the data and transmits it to the control system for processing. The control system controls the state of the X-axis linear drive component 140 to achieve automated movement control of the first Z-axis linear drive component 130, the stable platform 120, and the material pool 110 in the X-axis direction.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 3. Optimization and improvement of the detection and unloading mechanism assembly:

[0085] The following structural optimizations were made to the lifting screen mechanism 300:

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] Optionally, the bracket 321 is equipped with a level, such as a bubble level.

[0094] For the collaborative design of various institutions:

[0095] 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.

[0096] 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.

[0097] It should be noted that:

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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. A conveniently detachable, non-slip movable scraper mechanism for a 3D printer, characterized in that: It includes a platform surface (700), a Y-axis linear drive component (520) installed on the platform surface (700), and a scraper (510); the Y-axis linear drive component (520) is a synchronous belt linear drive module; The scraper (510) includes a mounting plate (511), a blade body (515) connected to the mounting plate (511), and a fixing plate (512). The top surface of the mounting plate (511) is provided with a positioning groove (5111) extending from its front surface to its rear surface, and the bottom surface of the positioning groove (5111) is provided with a strap groove (5112) extending from the front surface of the mounting plate (511) to the rear surface of the mounting plate (511). The fixing piece (512) matches the shape of the positioning groove (5111) and is detachably connected by fasteners so that the fixing piece (512) is installed on the positioning groove (5111), and the left and right sides of the fixing piece (512) are in contact with the inner walls of the left and right sides of the positioning groove (5111). The bottom surface of the mounting plate (511) is slidably mounted on the horizontal platform (700) along the Y-axis direction, so that it can move on the horizontal platform (700) along the Y-axis direction; the belt slot (5112) is used for the synchronous belt (522) of the synchronous belt linear drive module to pass through, and the synchronous belt (522) moves to drive the mounting plate (511) to move back and forth; 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 third position sensors (530) are detachably connected to the horizontal platform surface (700) via a position adjustment component (540); the mounting handle plate (511) is provided with a third sensing ridge (513) extending outward; the third sensing ridge (513) is located in the sensing area of ​​the front and rear interval area of ​​the two third position sensors (530).

2. The convenient disassembly and anti-slip movable scraper mechanism for 3D printers according to claim 1, characterized in that: The bottom surface of the positioning groove (5111) and the fixing piece (512) are provided with matching fastening holes; The fasteners are installed in the fastening holes of the positioning groove (5111) and the fastening holes of the fixing piece (512), so that the fixing piece (512) can be detachably installed on the positioning groove (5111).

3. The convenient disassembly and anti-slip movable scraper mechanism for 3D printers according to claim 1, characterized in that: 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) can be adjusted. The third position sensor (530) and the synchronous belt linear drive module are electrically connected to the control system.

4. The convenient disassembly and anti-slip movable scraper mechanism for 3D printers according to claim 3, characterized in that: The position adjustment component (540) includes a base plate (541) and two vertically arranged limiting plates (542); the base plate (541) is provided with limiting plates (542) at intervals on its left and right sides respectively. 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). The third sensing protrusion (513) can move into the space between the two limiting plates (542) after moving back and forth. The base plate (541) is provided with fastening holes, and the platform surface (700) is provided with a number of reserved fastening holes. The number of reserved fastening holes on the platform surface (700) is greater than the number of fastening holes on the base plate (541). By installing fasteners 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.

5. The convenient disassembly and anti-slip movable scraper mechanism for 3D printers according to claim 4, 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 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).

6. The convenient disassembly and anti-slip movable scraper mechanism for 3D printers according to claim 5, characterized in that: The horizontal bar (5131) is provided with an elongated hole, and the mounting plate (511) is provided with a fastening hole on the side away from the blade body (515). The mounting plate (511) and the third sensing protrusion (513) are detachably connected by fasteners installed on the elongated hole and the fastening hole of the mounting plate (511).

7. The convenient disassembly and anti-slip movable scraper mechanism for 3D printers according to claim 5, characterized in that: The mounting plate (511) has a slider (550) on its bottom surface, and the horizontal platform (700) has a Y-axis slide rail (560). The slider (550) is slidably connected to the Y-axis slide rail (560) so that the mounting plate (511) can slide back and forth on the horizontal platform (700) along the Y-axis direction.

8. The convenient disassembly and anti-slip movable scraper mechanism for 3D printers according to claim 5, characterized in that: 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). The output shaft of the Y-axis drive (523) is provided with a drive wheel coaxial with it. The synchronous belt (522) is wound between the driven wheel and the drive wheel. The Y-axis drive (523) drives the drive wheel to rotate, thereby driving the synchronous belt (522) to move.

9. The convenient disassembly and anti-slip movable scraper mechanism for a 3D printer according to claim 8, characterized in that: The rotating seat (521) has an elongated hole at its bottom, and the platform surface (700) has several fastening holes. Fasteners are installed on the elongated hole of the rotating seat (521) and the fastening holes of the platform surface (700), so that the rotating seat (521) can be detachably installed on the platform surface (700) and its position can be adjusted. And / or, the Y-axis linear drive component (520) further includes an L-shaped fixing seat (524); the two 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); 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; And / or, the bottom of the Y-axis drive (523) is provided with a fixing plate (5231), the bottom of the fixing plate (5231) is provided with an elongated hole, and the horizontal platform surface (700) is provided with a plurality of fastening holes. Fasteners are installed on the elongated hole of the fixing plate (5231) and the fastening holes of the horizontal platform surface (700), so that the fixing plate (5231) can be detachably installed on the horizontal platform surface (700) and its position can be adjusted.

10. An SLA 3D printer, characterized in that: Includes the movable scraper mechanism (500) as described in any one of claims 1-9, 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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