A 3D printer precision guide rail platform leveling device

Abstract

The application relates to the technical field of 3D printers, in particular to a 3D printer precision guide rail platform leveling device, which comprises a moving plate and a printing plate, further comprises a hot plate, an adjusting assembly and a detecting assembly, the hot plate is connected above the moving plate, the adjusting assembly is connected below the moving plate and the top of the adjusting assembly is connected with the hot plate. When the printing plate is not flat, the corners of the printing plate change the distance of pushing the moving column to move upward, so that the moving column is offset from the specified height, and the horizontal state of rotation is broken, whether the rotating rod returns to the horizontal state is observed during leveling, so that the visualization of the leveling degree is realized, and the judgment basis for leveling is provided, so that the precision of leveling is improved, and when the pressing plate presses the printing plate, the pressing plate protrudes along the edge of the printing plate, so that the pressing plate is clamped with the corners of the printing plate, and the printing plate is prevented from being offset during printing, so that the quality of printing is affected.

Description

Technical Field

[0001] This invention relates to the field of 3D printer technology, specifically to a 3D printer precision guide rail platform leveling device. Background Technology

[0002] In the field of 3D printing technology, the leveling accuracy of the printing platform is a key factor in ensuring the quality of the first layer and the overall printing success rate. The motion system of 3D printers generally uses a combination of linear guides and stepper motors to achieve precise positioning; for example, the X / Y axis guides control the movement of the print head through a slider and roller structure. The core function of the leveling device is to maintain a constant gap between the nozzle and the printing platform by adjusting the Z-axis height or platform tilt, thereby ensuring the stability and accuracy of print quality.

[0003] 3D printers offer two leveling methods for the printing platform: manual and automatic. Manual leveling involves rotating screws at the bottom of the four corners of the printing platform to adjust their height. After leveling, the machine checks for levelness. To determine if deviations have occurred, an A4 paper resistance test is often used. Users move the paper between the nozzle and the platform, relying on tactile feedback to judge "slight resistance" and determine the gap, repeatedly adjusting the four corners until uniform. However, this method suffers from significant subjective perception errors. Different operators have different thresholds for "appropriate resistance," leading to inconsistent corner leveling. Furthermore, paper material properties (such as thickness, surface friction coefficient, and deformation caused by humidity) can also interfere with the test results.

[0004] To address this, a leveling device for a precision guide rail platform in a 3D printer is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a leveling device for a precision guide rail platform of a 3D printer. In order to solve the problem of inaccurate judgment during the leveling process, the device uses the degree of upward movement of the detection component driven by the printing plate to determine whether leveling has been achieved, thereby providing a basis for judgment in the leveling process.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A 3D printer precision guide rail platform leveling device includes a moving plate and a printing plate, as well as a hot plate, an adjustment component, and a detection component. The hot plate is connected above the moving plate, the adjustment component is connected below the moving plate and its top is connected to the hot plate, the detection component is connected above the moving plate and to the hot plate, and the printing plate is connected to the upper side of the hot plate. When the adjustment component adjusts the hot plate, the offset distance of the detection component pushed up by the four corners of the printing plate is used to determine whether leveling is achieved. When the detection component presses down on the four corners of the printing plate, it fixes the printing plate by adhering to the edge of the printing plate.

[0008] In the above scheme, during the adjustment process, the leveling is determined by the distance the printing plate pushes the detection component to move, thus avoiding judgment based on feeling and improving the accuracy of leveling. In addition, the printing plate can be fixed during the printing process, improving the stability of the printing plate and thus improving the printing quality. Furthermore, by observing the detection component, it is possible to determine whether the four corners of the printing plate are tilted, so that the printing plate can be adjusted in a timely manner.

[0009] Preferably, the detection assembly includes a mounting column, a movable column, a compression spring, a pressure plate, a movable groove, a rotating rod, and a support rod. The mounting column is connected to the upper side of the movable plate and is L-shaped. The movable column is connected inside the mounting column and extends to the outside at its lower end. The pressure plate is connected to the lower end of the movable column and its bottom mates with the printing plate. The compression spring is sleeved on the outer wall of the movable column. The movable groove is formed inside the mounting column. The support rod is connected inside the movable groove. The rotating rod is hinged to the top of the support rod. The telescopic rod is connected to the outer wall of the movable column. One end of the rotating rod is hinged to the telescopic rod, and the other end extends to the outside of the movable groove.

[0010] In the above scheme, the pressure plate is placed on top of the printing plate. Because the mounting post is installed on the movable post, the position of the movable post is fixed. When the pressure plate presses on the printing plate, it pushes the movable post to move. When the plate is level, the movable post will move to the designated height, at which point the rotating rod is horizontal. When the corner of the printing plate is too high, it will push the movable post upward. At this time, the end of the rotating rod that is hinged to the telescopic rod will move upward with the movable post, causing the extended end of the rotating rod to move downward. When the corner of the printing plate is too low, the movable post will move downward. At this point, the end of the rotating rod that is hinged to the telescopic rod will move downwards along with the moving column, causing the extended end of the rotating rod to move upwards. The vertical displacement of the extended end of the rotating rod can then be used to determine whether the corners of the printing plate are too high or too low. During adjustment, the leveling can be determined by observing whether the rotating rod tends to be horizontal. Alternatively, a mark can be added at the horizontal position, and the leveling can be determined by observing whether the rotating rod coincides with the mark. This allows for visualization of the leveling degree during the leveling process, providing a basis for judgment and improving the accuracy of leveling.

[0011] Preferably, the cross-section of the pressure plate is a right-angled triangle, and the bottom of the two right-angled sides are connected by a protruding edge.

[0012] In the above scheme, the pressure plate is designed as a right-angled triangle, with its right-angled side parallel to the right-angled side of the hot plate when pressed down. The protruding edge at the bottom of the right-angled side fits against the edge of the hot plate, thus enveloping the right-angled side of the hot plate and locking the pressure plate at the corners. Because the corners of the printing plate are aligned with the corners of the hot plate when mounted on the hot plate, the protruding edge at the bottom of the pressure plate restricts the movement of the printing plate on the hot plate. Since the weight of the printed item on the printing plate increases with printing time, the overall weight of the printing plate and the printed item increases, leading to increased inertia. When the moving plate moves back and forth rapidly, and because the printing plate and hot plate are magnetically connected for easy assembly and disassembly, the printing plate lacks a fixed connection. This makes the printing plate prone to shifting under inertia, affecting print quality. The protruding edge is used to limit the shift of the printing plate, thereby improving print quality.

[0013] Preferably, the protruding edge has a bevel on the side near the printing plate, and the thickness of the protruding edge gradually increases from top to bottom.

[0014] In the above scheme, when the pressure plate moves downward to press down on the printing plate after the printing plate is installed, the design of the beveled edge increases the opening when the protruding edge fits with the printing plate, avoiding hard compression between the printing plate and the protruding edge when the printing plate and the hot plate are tilted. In addition, during the downward movement, the beveled edge will also push the tilted printing plate to move, so that the printing plate and the hot plate are parallel.

[0015] Preferably, the hinge point between the rotating rod and the support rod is close to the hinge point between the rotating rod and the moving column, and the end of the rotating rod away from the hinge point is T-shaped.

[0016] In the above scheme, the hinge of the support rod is placed close to the moving column. Utilizing the principle of leverage, the distance that the shorter end moves up and down is amplified at the longer end. This allows for the amplification of small deviations during adjustment, thereby achieving more precise adjustment. Furthermore, the end of the rotating rod is designed in a T-shape to increase the area at the end, making it easier to observe whether the rotating rod is tilted, further improving the accuracy of installation.

[0017] Preferably, the adjusting assembly includes a fixing sleeve, a bolt, and a nut. A plurality of the fixing sleeves are connected to the bottom of the hot plate, the bolt is connected to the bottom of the movable plate and is movably connected to the fixing sleeve through the movable plate, and the nut is connected to the bottom of the bolt.

[0018] In the above scheme, the bolt is rotated by turning the nut, which causes the bolt to move up and down relative to the moving plate, thereby pushing the hot plate up or down to achieve leveling of the printing plate. The top of the bolt can rotate at the connection with the fixed sleeve, so that the bolt can rotate relative to the hot plate.

[0019] Preferably, the bolt is divided into an upper adjusting end and a lower adjusting end. The upper adjusting end is movably connected to the upper end of the lower adjusting end. The lower adjusting end has a hexagonal hole at its top, the diameter of which gradually decreases from top to bottom. A locking component is connected inside the hexagonal hole.

[0020] In the above scheme, by dividing the bolt into an upper adjustment end and a lower adjustment end, and making them threaded connections, and the thread density between the upper adjustment end and the lower adjustment end is greater than the thread density between the lower adjustment end and the moving plate, the coarse adjustment of the lower adjustment end on the hot plate and the fine adjustment of the lower adjustment end on the hot plate can be achieved, thereby improving the adjustment accuracy.

[0021] Preferably, the locking assembly includes a locking post, locking rods, and a return spring. The locking post is slidably connected to the inside of the upper adjusting end. The upper end of the locking post is hexagonal, and the lower end is cylindrical. A return spring is sleeved on the outer wall of the lower end of the locking post. The nut is connected to the lower end of the locking post. Multiple locking rods are slidably connected to the top of the inner wall of the fixing sleeve, and their lower ends extend out of the interior of the hot plate to cooperate with the locking post.

[0022] In the above scheme, in the initial state, the locking pin moves upward under the push of the return spring, causing the upper end of the locking pin to push part of the locking rod upward, thereby forming a hexagonal groove that engages with the upper end of the locking pin, thus restricting the rotation of the locking pin. When the locking pin moves upward, the top of the nut contacts the bottom of the lower adjustment end. The two contact surfaces are rough, which increases the resistance to the rotation of the lower adjustment end, thus preventing the lower adjustment end from rotating when the moving plate vibrates. This further restricts the bolt from rotating after leveling, thus preventing the printing plate from becoming unbalanced due to the bolt's rotation caused by vibration during the movement of the moving plate. Pulling down the locking rod makes it fit against the inner wall of the hexagonal hole. Then, rotating the nut causes the locking rod to simultaneously drive the upper and lower adjustment ends of the bolt to rotate, thus achieving coarse adjustment. Pulling down part of the locking rod to a position that does not contact the inner wall of the hexagonal hole, and then rotating the nut causes the locking rod to drive the upper adjustment end to rotate, thus achieving fine adjustment.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. By setting up a detection component, when the corner of the printing plate is too high, the printing plate will push the moving column upward, and when it is too low, it will move downward. When the moving column deviates from the specified height, the moving column will break the horizontal state of rotation, thus reflecting the horizontal state of the printing plate. During leveling, observe whether the rotating rod returns to the horizontal state to visualize the degree of leveling, thereby providing a basis for judging leveling and improving the accuracy of leveling. In addition, when the pressure plate presses down on the printing plate, it fits against the edge of the printing plate through the protruding edge, so that the pressure plate and the corner of the printing plate are locked together, preventing the printing plate from deviating during printing and affecting the printing quality.

[0025] 2. By setting a locking assembly, the upper end of the locking pin pushes the locking rod upward, causing multiple locking rods to form a hexagonal groove that engages with the upper end of the locking pin. This restricts the rotation of the locking pin, thus preventing the printing plate from becoming unbalanced due to vibration during the movement of the moving plate. At the same time, pulling down the locking pin by different distances allows for coarse and fine adjustment of the bolts, improving the accuracy of leveling.

[0026] 3. By setting up a support rod and a rotating rod, the support rod and the rotating rod are hinged to form a lever structure. When the moving column moves up and down, the rotating rod will deflect around the support rod, thereby causing the extended end of the rotating rod to shift from the horizontal position. This allows the system to determine whether the printing plate is tilted and to bring the hinge closer to the moving column. By utilizing the principle that the distance the shorter end of the lever moves up and down is amplified at the longer end, the small movement of the moving column is magnified at the extended end of the rotating rod, thus achieving more precise adjustment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0029] Figure 3 This is a schematic diagram of the detection component of the present invention;

[0030] Figure 4 For the present invention Figure 3 An enlarged schematic diagram of part A in the middle;

[0031] Figure 5 This is a schematic diagram of the bolt structure of the present invention;

[0032] Figure 6 This is a schematic diagram showing the printing plate of the present invention with its edges and corners in a horizontal position.

[0033] Figure 7 This is a schematic diagram showing the printing plate of the present invention with its edges and corners in a low position.

[0034] Figure 8This is a schematic diagram showing the printing plate of the present invention with its corners slightly raised.

[0035] In the diagram: 1. Moving plate; 2. Printing plate; 3. Hot plate;

[0036] 4. Adjustment assembly; 401. Fixing sleeve; 402. Bolt; 4021. Upper adjusting end; 4022. Lower adjusting end; 4023. Hexagonal hole; 403. Nut;

[0037] 5. Detection components; 501. Mounting column; 502. Moving column; 503. Compression spring; 504. Pressure plate; 5041. Protruding edge; 505. Movable groove; 506. Rotating rod; 507. Support rod; 508. Telescopic rod;

[0038] 6. Locking assembly; 601. Locking pin; 602. Locking rod; 603. Return spring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and the structural features will be further detailed in conjunction with the working state. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figures 1 to 8 This invention provides a leveling device for a precision guide rail platform of a 3D printer, the technical solution of which is as follows:

[0041] A leveling device for a precision guide rail platform of a 3D printer, referring to Figure 1 , Figure 2 and Figure 3 The system includes a movable plate 1 and a printing plate 2, as well as a hot plate 3, an adjustment component 4, and a detection component 5. The hot plate 3 is connected above the movable plate 1, the adjustment component 4 is connected below the movable plate 1 and its top is connected to the hot plate 3, and the detection component 5 is connected above the movable plate 1 and to the hot plate 3. The printing plate 2 is connected to the upper side of the hot plate 3. When the adjustment component 4 adjusts the hot plate 3, the offset distance of the detection component 5 pushed up by the four corners of the printing plate 2 is used to determine whether it is level, thus avoiding judgment by feeling and improving the accuracy of leveling. When the detection component 5 presses down on the four corners of the printing plate 2, it fixes the printing plate 2 by adhering to the edge of the printing plate 2, improving the stability of the printing plate 2 during the printing process and thus improving the printing quality. In addition, the detection component 5 can be used to observe whether the four corners of the printing plate 2 are tilted, so that the printing plate 2 can be adjusted in time.

[0042] As one embodiment of the present invention, refer to Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 The detection component 5 includes a mounting column 501, a movable column 502, a compression spring 503, a pressure plate 504, a movable groove 505, a rotating rod 506, and a support rod 507. The mounting column 501 is connected to the upper side of the movable plate 1 and is L-shaped. The movable column 502 is connected inside the mounting column 501 and extends to the outside at its lower end. The movable column 502 can move up and down inside the mounting column 501. The pressure plate 504 is connected to the lower end of the movable column 502 and its bottom... The component mates with the printing plate 2. The compression spring 503 is sleeved on the outer wall of the moving column 502. The movable groove 505 is formed inside the mounting column 501. The support rod 507 is connected inside the movable groove 505. The rotating rod 506 is hinged to the top of the support rod 507. The telescopic rod 508 is connected to the outer wall of the moving column 502. One end of the rotating rod 506 is hinged to the outer wall of the telescopic rod 508, and the other end extends to the outside of the movable groove 505. When the pressure plate 504 presses down... When the printing plate 2 is flat, the moving column 502 will move to a specified height. At this time, the rotating rod 506 is in a horizontal state. When the height of the corner of the printing plate 2 is too high, it will push the moving column 502 to move upward. At this time, the end of the rotating rod 506 that is hinged to the telescopic rod 508 will follow the moving column 502 to move upward, thereby causing the extended end of the rotating rod 506 to move downward. When the height of the corner of the printing plate 2 is too low, the moving column 502 will move downward. At this time, the end of the rotating rod 506 that is hinged to the telescopic rod 508 will follow the moving column 502 to move downward, thereby causing the extended end of the rotating rod 506 to move upward. Thus, the vertical displacement of the extended end of the rotating rod 506 can be used to determine whether the corner of the printing plate 2 is too high or too low. During leveling, the rotating rod 506 is brought to a horizontal position to complete the leveling. Thus, the leveling degree is visualized during the leveling process, providing a basis for judgment and improving the accuracy of leveling.

[0043] As one embodiment of the present invention, refer to Figure 3 The pressure plate 504 has a right-angled triangle cross-section, and when the pressure plate 504 is pressed down, the right-angled side of the pressure plate 504 is parallel to the right-angled side of the hot plate 3. The bottom of the two right-angled sides is connected to a protruding edge 5041. The protruding edge 5041 at the bottom of the right-angled side fits against the edge of the hot plate 3, thereby wrapping the right-angled side of the hot plate 3 and locking the pressure plate 504 with the corner of the hot plate 3. Since the corner of the printing plate 2 is parallel to the corner of the hot plate 3 when the printing plate 2 is installed on the hot plate 3, the movement of the printing plate 2 on the hot plate 3 can be restricted by the protruding edge 5041 at the bottom of the pressure plate 504, thereby preventing the printing plate 2 from easily shifting under the action of inertia and affecting the printing quality.

[0044] As one embodiment of the present invention, refer to Figure 4 The protruding edge 5041 has a bevel on the side near the printing plate 2, and the thickness of the protruding edge 5041 gradually increases from top to bottom. The bevel design increases the opening when the protruding edge 5041 is in contact with the printing plate 2, avoiding hard compression between the printing plate 2 and the hot plate 3 when they are tilted. In addition, during the downward movement, the bevel will also push the tilted printing plate 2 to move, so that the printing plate 2 is parallel to the hot plate 3, further improving the accuracy of leveling.

[0045] As one embodiment of the present invention, refer to Figure 4 The hinge point between the rotating rod 506 and the support rod 507 is close to the hinge point between the rotating rod 506 and the moving column 502. Utilizing the principle of levers, the distance that the shorter end moves up and down is amplified at the longer end. This allows for the amplification of small deviations during adjustment, thereby achieving more precise adjustment. The end of the rotating rod 506 furthest from the hinge point is designed in a T-shape to increase the area of ​​the end, making it easier to observe whether the rotating rod 506 is tilted, further improving the accuracy of installation.

[0046] As one embodiment of the present invention, refer to Figure 5 The adjustment component 4 includes a fixing sleeve 401, a bolt 402, and a nut 403. Multiple fixing sleeves 401 are connected to the bottom of the hot plate 3. The bolt 402 is connected to the bottom of the movable plate 1 and passes through the movable plate 1 and is movably connected to the fixing sleeve 401, so that the bolt 402 can rotate relative to the hot plate 3. The nut 403 is connected to the bottom of the bolt 402. By rotating the nut 403, the bolt 402 is rotated, thereby causing the bolt 402 to move up and down relative to the movable plate 1, thereby pushing the hot plate 3 to move up or down, thereby achieving the leveling of the printing plate 2.

[0047] As one embodiment of the present invention, refer to Figure 5 The bolt 402 is divided into an upper adjusting end 4021 and a lower adjusting end 4022. The upper adjusting end 4021 is movably connected to the upper end of the lower adjusting end 4022. The thread density between the upper adjusting end 4021 and the lower adjusting end 4022 is greater than the thread density between the lower adjusting end 4022 and the moving plate 1, thereby realizing the coarse adjustment of the lower adjusting end 4022 on the hot plate 3 and the fine adjustment of the lower adjusting end 4022 on the hot plate 3, thereby improving the adjustment accuracy. A hexagonal hole 4023 is provided at the top of the lower adjusting end 4022. The diameter of the hexagonal hole 4023 gradually decreases from top to bottom. A locking component 6 is connected inside the hexagonal hole 4023.

[0048] As one embodiment of the present invention, refer to Figure 5The locking assembly 6 includes a locking post 601, locking rods 602, and a return spring 603. The locking post 601 is slidably connected to the inside of the upper adjusting end 4021. The upper end of the locking post 601 is hexagonal, and the lower end is cylindrical. The return spring 603 is sleeved on the outer wall of the lower end of the locking post 601. The nut 403 is connected to the lower end of the locking post 601. Multiple locking rods 602 are slidably connected to the top of the inner wall of the fixing sleeve 401, and their lower ends extend out of the interior of the heating plate 3 to cooperate with the locking post 601. In non-leveling, the locking post 601 moves upward under the push of the return spring 603, causing the upper end of the locking post 601 to push some of the locking rods 602 upward, thereby forming a hexagonal groove that engages with the upper end of the locking post 601, thus restricting the rotation of the locking post 601, and consequently restricting the bolt 402 from rotating. After leveling, rotation occurs, thus preventing the printing plate 2 from becoming unbalanced due to the loosening of bolt 402 caused by vibration during the movement of moving plate 1. During leveling, pulling nut 403 moves locking rod 602 downwards to separate it from the bolt 402, thereby releasing the bolt 402 from its fixation. Then, rotating nut 403 causes locking rod 602 to rotate bolt 402, thus achieving adjustment. For fine adjustment, pull down part of locking rod 602 and then rotate nut 403 to make locking rod 602 rotate upper adjustment end 4021. For coarse adjustment, pull down locking rod 602 to move the upper part of locking rod 602 to the bottom of hexagonal hole 4023, so that the upper part of locking rod 602 fits against the inner wall of hexagonal hole 4023. Then, rotating nut 403 causes locking rod 602 to rotate bolt 402 as a whole, thus achieving coarse adjustment.

[0049] Working principle: When in use, first place the printing plate 2 on the hot plate 3, then press the detection component 5 on the four corners of the printing plate 2, rotate the nuts 403 at the four corners of the moving plate 1 to make the bolts 402 rotate and move up or down, thereby leveling the printing plate 2, and observe the rotating rod 506 in the detection component 5 to determine whether the printing plate 2 has been leveled.

[0050] Specifically, the judgment process involves the following steps: When the detection component 5 is installed above the four corners of the printing plate 2, the pressure plate 504 is pressed against the four corners of the printing plate 2. Since the height of the moving plate 1 remains constant, and the mounting column 501 is connected above the moving plate 1, its height also remains constant. When the pressure plate 504 is pressed against the four corners of the printing plate 2, the printing plate 2 pushes the pressure plate 504 to move the moving column 502 upwards. When the printing plate 2 is in a flat state, the moving column 502 moves upwards to a specified fixed height. At this time, the rotating plate is in a horizontal state. When the corners of the printing plate 2 are too high, they will push the moving column 502 upwards. When the moving column 502 moves upward, it will cause one end of the hinged rotating rod 506 to move upward. Through the lever formed by the support rod 507 and the rotating rod 506, the extended end of the rotating rod 506 will move downward, thus causing the extended end of the rotating rod 506 to shift downward. When the height of the corner of the printing plate 2 is too low, the moving column 502 will move downward under the push of the compression spring 503. At this time, the moving column 502 will drive the hinged end of the rotating rod 506 to move downward, thus causing the extended end of the rotating rod 506 to move upward. Therefore, the vertical shift of the extended end of the rotating rod 506 can be used to determine whether the corner of the printing plate 2 is too high or too low.

[0051] During coarse adjustment: pull down the locking rod 602 to move the upper part of the locking rod 602 to the bottom of the hexagonal hole 4023, so that the upper part of the locking rod 602 fits against the inner wall of the hexagonal hole 4023. Then rotate the nut 403 to make the locking rod 602 drive the bolt 402 to rotate as a whole, thereby achieving coarse adjustment.

[0052] For fine adjustment: pull down the locking rod 602 without it contacting the inner wall of the hexagonal hole 4023, and then rotate the nut 403 to make the locking rod 602 drive the upper adjusting end 4021 to rotate, thereby achieving fine adjustment.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leveling device for a precision guide rail platform of a 3D printer, comprising a moving plate (1) and a printing plate (2), characterized in that: It also includes a hot plate (3), an adjustment component (4) and a detection component (5). The hot plate (3) is connected above the moving plate (1), the adjustment component (4) is connected below the moving plate (1) and its top is connected to the hot plate (3), the detection component (5) is connected above the moving plate (1), and the printing plate (2) is connected to the upper side of the hot plate (3). When the adjustment component (4) adjusts the hot plate (3), the offset distance of the four corners of the printing plate (2) pushing the detection component (5) upward is used to determine whether it is level. When the detection component (5) presses down on the four corners of the printing plate (2), the printing plate (2) is fixed by adhering to the edge of the printing plate (2). The detection component (5) includes a mounting column (501), a movable column (502), a compression spring (503), a pressure plate (504), a movable groove (505), a rotating rod (506), a support rod (507), and a telescopic rod (508). The mounting column (501) is connected to the upper side of the movable plate (1) and is L-shaped. The movable column (502) is connected inside the mounting column (501) and its lower end extends to the outside. The movable column (502) can move up and down inside the mounting column (501). The pressure plate (504) is connected to the movable plate (1). The lower end of the column (502) is fitted with the printing plate (2), the compression spring (503) is sleeved on the outer wall of the movable column (502), the movable groove (505) is opened inside the mounting column (501), the support rod (507) is connected inside the movable groove (505), the rotating rod (506) is hinged to the top of the support rod (507), the telescopic rod (508) is connected to the outer wall of the movable column (502), one end of the rotating rod (506) is hinged to the telescopic rod (508), and the other end extends to the outside of the movable groove (505); The cross-section of the pressure plate (504) is set as a right triangle, and the bottom of the two right-angled sides are connected by a protruding edge (5041); The protruding edge (5041) has a bevel on the side near the printing plate (2), and the thickness of the protruding edge (5041) gradually increases from top to bottom; The hinge point of the rotating rod (506) and the support rod (507) is close to the hinge point of the rotating rod (506) and the moving column (502), and the end of the rotating rod (506) away from the hinge point is set in a T shape.

2. The 3D printer precision guide rail platform leveling device according to claim 1, characterized in that: The adjustment assembly (4) includes a fixed sleeve (401), a bolt (402) and a nut (403). Multiple fixed sleeves (401) are connected to the bottom of the hot plate (3). The bolt (402) is connected to the bottom of the movable plate (1) and passes through the movable plate (1) to be movably connected to the fixed sleeve (401). The nut (403) is connected to the bottom of the bolt (402).

3. The 3D printer precision guide rail platform leveling device according to claim 2, characterized in that: The bolt (402) is divided into an upper adjusting end (4021) and a lower adjusting end (4022). The upper adjusting end (4021) is movably connected to the upper end of the lower adjusting end (4022). The lower adjusting end (4022) has a hexagonal hole (4023) at the top. The diameter of the hexagonal hole (4023) gradually decreases from top to bottom. A locking component (6) is connected inside the hexagonal hole (4023).

4. The 3D printer precision guide rail platform leveling device according to claim 3, characterized in that: The locking assembly (6) includes a locking post (601), a locking rod (602), and a return spring (603). The locking post (601) is slidably connected to the inside of the upper adjusting end (4021). The upper end of the locking post (601) is hexagonal, and the lower end is cylindrical. The return spring (603) is sleeved on the outer wall of the lower end of the locking post (601). The nut (403) is connected to the lower end of the locking post (601). Multiple locking rods (602) are slidably connected to the top of the inner wall of the fixing sleeve (401), and their lower ends extend out of the interior of the hot plate (3) to cooperate with the locking post (601).

Images