FDM printer facilitating unloading

Abstract

The utility model discloses FDM printer convenient to unload relates to printer technical field, including bottom plate, the top end symmetry fixedly connected with mounting panel of bottom plate, the top fixedly connected with support plate of mounting panel, the top fixedly connected with fixed link of bottom plate close mounting panel, the top fixedly connected with fixed block of fixed link, the inner wall of bottom plate is provided with lifting mechanism, the utility model discloses through printing platform, motorized turntable and unloading mechanism cooperation, has reached the effect that it is convenient to unload, when printing ends, through PLC control printing platform and drops to the unloading position, after starting motorized turntable again, drives the printing article uniform speed rotation on it, then, PLC starts unloading mechanism, makes the spade on unloading mechanism and carries out cutting to the combination of printing material, cooperates motorized turntable and drives printing material rotation, and then accelerates cutting speed, is convenient for subsequent unloading.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, specifically to an FDM printer that facilitates unloading. Background Technology

[0002] Fused Deposition Modeling (FDM) is another widely used 3D printing technology following Solid Lamination (SLA) and Layered Object Modeling (LOM). FDM works by heating and melting a filament of thermoplastic material through a nozzle with micro-nozzles at the bottom. Under program control, the nozzle moves to a designated position based on data from the 3D model, extruding the molten liquid material, which then solidifies. The extruded material is deposited on top of the previous solidified layer, and the final product is formed by the gradual accumulation of layers. Currently, FDM printers on the market are inconvenient to unload after printing, usually requiring manual operation. This involves manually separating the forming platform from the printed part using a tool, which can easily lead to excessive force and damage to the printed part, resulting in wasted costs and inconvenience.

[0003] For example, the patent with authorization announcement number CN223099961U describes an FDM printer that includes a main frame, a printing platform within the main frame, and a first drive unit within the main frame. Two side plates are correspondingly located on the top left and right sides of the main frame, each with a second drive unit. A third drive unit is located between the two first positioning blocks. By arranging the first, second, and third drive units and the printing platform within the main frame, the device simultaneously drives the z-axis, y-axis, and x-axis lead screws to rotate during operation, ensuring smooth lifting and lowering of the printing platform and smooth extrusion of the extrusion unit. However, the use of dual drives in multiple locations during lifting and adjustment to achieve simultaneous movement of components at different positions in the same direction and at the same speed poses a certain risk, potentially leading to asynchrony. Furthermore, unloading after printing is inconvenient, reducing the device's practicality.

[0004] Based on this, an FDM printer that facilitates unloading is now available, eliminating the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide an FDM printer that facilitates unloading, thereby solving the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An FDM printer for easy unloading includes a base plate, a mounting plate symmetrically fixedly connected to the top of the base plate, a support plate fixedly connected to the top of the mounting plate, a fixing rod fixedly connected to the top of the base plate near the mounting plate, a fixing block fixedly connected to the top of the fixing rod, a lifting mechanism provided on the inner wall of the base plate, an adjustment mechanism provided at the top of the support plate, and an unloading mechanism provided on the fixing block.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: Preferably, the lifting mechanism includes a first motor, which is fixedly connected to the side wall of the base plate. A rotating rod is fixedly connected to the output end of the first motor. The rotating rod is rotatably connected to the inner wall of the base plate. A driving bevel gear is symmetrically fixedly connected to the outer wall of the rotating rod. A driven bevel gear meshes with the top of the driving bevel gear. A first lead screw is fixedly connected to the axis of the driven bevel gear. The first lead screw is rotatably connected to the inner wall of the mounting plate.

[0008] Preferably, the outer wall of the first lead screw is threadedly connected to a first slider, the side wall of the first slider is fixedly connected to a printing platform, the guide block of the side wall of the printing platform slides in cooperation with the vertical groove opened on the mounting plate, and the inner wall of the printing platform is provided with an electric turntable.

[0009] Preferably, the adjustment mechanism includes a second motor, which is fixedly connected to the top of the support plate. A second lead screw is fixedly connected to the output end of the second motor. The second lead screw is rotatably connected to a connecting block at the top of the support plate. A second slider is threadedly connected to the outer wall of the second lead screw. The second slider is slidably connected to a groove on the support plate. A fixed frame is fixedly connected to the bottom end of the second slider. A third motor is fixedly connected to the side wall of the fixed frame. A third lead screw is fixedly connected to the output end of the third motor. The third lead screw is rotatably connected to the inner wall of the fixed frame. A third slider is threadedly connected to the outer wall of the third lead screw. A printing nozzle is installed at the bottom end of the third slider.

[0010] Preferably, the top of the fixed frame is symmetrically fixedly connected with support rods, and the support rods are slidably connected to guide grooves opened on the support plate.

[0011] Preferably, the unloading mechanism includes a fourth motor and a threaded sleeve. The fourth motor is fixedly connected to the bottom end of the fixed block. A gear is fixedly connected to the outer wall of the output end of the fourth motor. The threaded sleeve is rotatably connected to the inner wall of the fixed block through a bearing. The outer wall of the threaded sleeve is provided with toothed grooves at equal intervals around its circumference. The teeth of the gear mesh with the toothed grooves. A threaded rod is threadedly connected to the inner wall of the threaded sleeve. A connecting plate is rotatably connected to the end of the threaded rod away from the mounting plate. A scraper is rotatably connected to the end of the threaded rod near the mounting plate. The scraper is a thin stainless steel blade with its cutting edge parallel to the surface of the printing platform to adapt to the bottom peeling of printed parts with different contours.

[0012] Preferably, guide rods are symmetrically fixedly connected to the side wall of the connecting plate, the guide rods are slidably connected to the grooves opened on the fixing block, and the end of the guide rod near the fixing block is fixedly connected to the side wall of the shovel.

[0013] Preferably, the first motor, the electric turntable, the second motor, the third motor, and the fourth motor are electrically connected via a PLC control module.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model effectively ensures the stability of equipment operation through the coordinated action of the lifting mechanism and the adjustment mechanism. The lifting process uses a single motor to drive the synchronous rotation of the double-sided lead screws, fundamentally avoiding platform offset caused by asynchronous dual drives; during the printing process, the movement in the X-axis and Y-axis directions is also controlled separately by a single power source, ensuring that the print head movement path is accurate and does not interfere with each other.

[0015] 2. This utility model achieves the effect of easy unloading by cooperating the printing platform, electric turntable and unloading mechanism. After printing is completed, the printing platform is lowered to the unloading position by PLC control, and then the electric turntable is started to drive the printed items on it to rotate at a uniform speed. Then the PLC starts the unloading mechanism, so that the scraper on the unloading mechanism cuts the joint of the printed items. With the electric turntable driving the printed items to rotate, the cutting speed is accelerated, which facilitates the subsequent unloading. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model.

[0019] Figure 4 This is a schematic diagram of the unloading mechanism of this utility model.

[0020] Figure reference numerals: 1. Base plate; 11. Mounting plate; 12. Support plate; 13. Fixing rod; 14. Fixing block; 2. Lifting mechanism; 21. First motor; 22. Rotating rod; 23. Driving bevel gear; 24. Driven bevel gear; 25. First lead screw; 26. First slider; 27. Printing platform; 28. Electric turntable; 3. Adjustment mechanism; 31. Second motor; 32. Second lead screw; 33. Second slider; 34. Fixing frame; 35. Third motor; 36. Third lead screw; 37. Third slider; 38. Support rod; 4. Unloading mechanism; 41. Fourth motor; 42. Gear; 43. Threaded sleeve; 44. Threaded rod; 45. Connecting plate; 46. Guide rod; 47. Shovel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] In one embodiment, such as Figures 1-4 As shown, the FDM printer for easy unloading includes a base plate 1, a mounting plate 11 symmetrically fixed to the top of the base plate 1, a support plate 12 fixedly fixed to the top of the mounting plate 11, a fixing rod 13 fixedly fixed to the top of the base plate 1 near the top of the mounting plate 11, a fixing block 14 fixedly fixed to the top of the fixing rod 13, a lifting mechanism 2 provided on the inner wall of the base plate 1, an adjustment mechanism 3 provided on the top of the support plate 12, and an unloading mechanism 4 provided on the fixing block 14.

[0023] In this embodiment, the lifting mechanism 2 and the adjusting mechanism 3 work together to complete the 3D printing of the required items. After printing is completed, the lifting mechanism 2 is controlled by the PLC to lower the electric turntable 28 to the unloading position. Then, the unloading mechanism 4 can be used to quickly unload the material.

[0024] In an optional embodiment, such as Figure 2 As shown, the lifting mechanism 2 includes a first motor 21, which is fixedly connected to the side wall of the base plate 1. A rotating rod 22 is fixedly connected to the output end of the first motor 21. The rotating rod 22 is rotatably connected to the inner wall of the base plate 1. A driving bevel gear 23 is symmetrically fixedly connected to the outer wall of the rotating rod 22. A driven bevel gear 24 meshes with the top of the driving bevel gear 23. A first lead screw 25 is fixedly connected to the shaft of the driven bevel gear 24. The first lead screw 25 is rotatably connected to the inner wall of the mounting plate 11. The first motor 21 is started by the PLC, which drives the rotating rod 22 to drive the driving bevel gear 23 to rotate, so that the driving bevel gear 23 drives the driven bevel gear 24 to rotate, and drives the first lead screw 25 to rotate synchronously.

[0025] In an optional embodiment, such as Figure 2As shown, the outer wall of the first lead screw 25 is threadedly connected to the first slider 26, and the side wall of the first slider 26 is fixedly connected to the printing platform 27. The guide block on the side wall of the printing platform 27 slides in cooperation with the vertical groove opened on the mounting plate 11. The inner wall of the printing platform 27 is provided with an electric turntable 28. When the first lead screw 25 rotates, the first slider 26 moves axially, driving the printing platform 27 to move synchronously, so that the printing platform 27 can move up and down. After printing is completed, the electric turntable 28 is started by the PLC, so that the electric turntable 28 drives the printed item to rotate, thereby facilitating the subsequent unloading work.

[0026] In an optional embodiment, such as Figure 3 As shown, the adjusting mechanism 3 includes a second motor 31, which is fixedly connected to the top of the support plate 12. A second lead screw 32 is fixedly connected to the output end of the second motor 31. The second lead screw 32 is rotatably connected to a connecting block at the top of the support plate 12. A second slider 33 is threadedly connected to the outer wall of the second lead screw 32. The second slider 33 is slidably connected to a groove on the support plate 12. A fixed frame 34 is fixedly connected to the bottom end of the second slider 33. A third motor 35 is fixedly connected to the side wall of the fixed frame 34. A third lead screw 36 is fixedly connected to the output end of the third motor 35. The third lead screw 36 is connected to the fixed frame 12. The inner wall of frame 34 is rotatably connected, and the outer wall of the third lead screw 36 is threadedly connected to the third slider 37. The bottom end of the third slider 37 is equipped with a printing nozzle. The second motor 31 and the third motor 35 are started by the PLC. The second motor 31 drives the second lead screw 32 to rotate, causing the second slider 33 to move axially, which drives the fixed frame 34 to move synchronously. At the same time, the third motor 35 drives the third lead screw 36 to rotate, causing the third slider 37 to move axially, which drives the printing nozzle installed at the bottom end of the third slider 37 to move synchronously. In this way, in conjunction with the printing platform 27 that can move up and down, the 3D printing of the required items is completed.

[0027] In an optional embodiment, such as Figure 3 As shown, a support rod 38 is symmetrically fixedly connected to the top of the fixed frame 34. The support rod 38 is slidably connected to the guide groove opened on the support plate 12. When the fixed frame 34 moves, it drives the support rod 38 to move synchronously, so that the support rod 38 slides in the groove opened on the support plate 12, thereby ensuring the stability of the fixed frame 34 when it moves.

[0028] In an optional embodiment, such as Figure 4As shown, the unloading mechanism 4 includes a fourth motor 41 and a threaded sleeve 43. The fourth motor 41 is fixedly connected to the bottom end of the fixed block 14. A gear 42 is fixedly connected to the outer wall of the output end of the fourth motor 41. The threaded sleeve 43 is rotatably connected to the inner wall of the fixed block 14 through a bearing. The outer wall of the threaded sleeve 43 is provided with toothed grooves at equal intervals around its circumference. The teeth of the gear 42 mesh with the toothed grooves. A threaded rod 44 is threadedly connected to the inner wall of the threaded sleeve 43. A connecting plate 45 is rotatably connected to the end of the threaded rod 44 away from the mounting plate 11. A scraper 47 is rotatably connected to one end of the 44 near the mounting plate 11. The scraper 47 is a thin stainless steel blade with its cutting edge parallel to the surface of the printing platform 27 to accommodate the bottom peeling of printed parts with different contours. The fourth motor 41 is started by the PLC, which drives the gear 42 to rotate. The gear 42 drives the threaded sleeve 43 to rotate, which in turn causes the threaded rod 44 to move axially, driving the connecting plate 45 to move synchronously. At the same time, it drives the scraper 47 to move, thereby driving the scraper 47 to move horizontally forward, approach and cut into the bottom of the workpiece. This horizontal cutting motion, in conjunction with the rotational motion of the workpiece driven by the electric turntable 28, can quickly and smoothly separate the workpiece, thus facilitating the unloading of the printed item.

[0029] In an optional embodiment, such as Figure 4 As shown, guide rods 46 are symmetrically fixedly connected to the side wall of the connecting plate 45. The guide rods 46 are slidably connected to the grooves opened on the fixing block 14. One end of the guide rod 46 near the fixing block 14 is fixedly connected to the side wall of the scraper 47. The scraper 47 is guided by the guide rods 46, so that the scraper 47 moves more smoothly and will not deviate, thus ensuring the stability during cutting.

[0030] In an optional embodiment, such as Figure 4 As shown, the first motor 21, the electric turntable 28, the second motor 31, the third motor 35 and the fourth motor 41 are electrically connected through a PLC control module. The PLC controls the cooperation of each component, so that the device can quickly unload the material after printing.

[0031] The above embodiments disclose an FDM printer that facilitates unloading. During printing, the PLC starts the first motor 21, driving the rotating rod 22 to rotate the driving bevel gear 23. The driving bevel gear 23 then drives the driven bevel gear 24 to rotate, causing the first lead screw 25 to rotate synchronously. This causes the first slider 26 to move axially, moving the printing platform 27 synchronously, allowing the printing platform 27 to move up and down. Simultaneously, the PLC starts the second motor 31 and the third motor 35. The second motor 31 drives the second lead screw 32 to rotate, causing the second slider 33 to move axially, moving the fixed frame 34 synchronously. This causes the fixed frame 34 to slide within the groove on the support plate 12, ensuring the stability of the fixed frame 34 during movement. Simultaneously, the third motor 35 drives the third lead screw 36 to rotate, causing the third slider 37 to move axially, moving the third slider... The printing nozzle mounted at the bottom of block 37 moves synchronously, cooperating with the printing platform 27 which can move up and down to complete the 3D printing of the required item. After printing is completed, the PLC's second motor 31 and third motor 35, and control the first motor 21, cause the printing platform 27 to fall to the unloading position. When the printing platform 27 reaches its position, the first motor 21 stops working. Then, the PLC starts the electric turntable 28 and the fourth motor 41. The electric turntable 28 drives the printed item to rotate slowly and uniformly. At the same time, the fourth motor 41 drives the gear 42 to rotate, which in turn drives the threaded sleeve 43 to rotate, thereby causing the threaded rod 44 to move axially, driving the connecting plate 45 to move synchronously. The connecting plate 45 drives the guide rod 46 to slide in the groove opened on the fixed block 14, ensuring that the scraper 47 moves horizontally. This drives the scraper 47 to move horizontally forward, approach and cut into the bottom of the workpiece. The horizontal cutting motion, combined with the rotational motion of the workpiece driven by the electric turntable 28, can quickly and smoothly separate the workpiece, thus facilitating the unloading of the printed item. In summary, the lifting mechanism 2 and the adjustment mechanism 3 work together to complete the 3D printing of the desired item. After printing is completed, the lifting mechanism 2 is controlled by the PLC to lower the electric turntable 28 to the unloading position. Then, the unloading mechanism 4, in conjunction with the electric turntable 28, can quickly complete the unloading.

[0032] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An FDM printer for easy unloading, comprising a base plate (1), wherein mounting plates (11) are symmetrically fixedly connected to the top of the base plate (1), characterized in that, A support plate (12) is fixedly connected to the top of the mounting plate (11), a fixing rod (13) is fixedly connected to the top of the base plate (1) near the mounting plate (11), a fixing block (14) is fixedly connected to the top of the fixing rod (13), a lifting mechanism (2) is provided on the inner wall of the base plate (1), an adjustment mechanism (3) is provided on the top of the support plate (12), and a unloading mechanism (4) is provided on the fixing block (14).

2. The FDM printer with easy unloading according to claim 1, characterized in that, The lifting mechanism (2) includes a first motor (21), which is fixedly connected to the side wall of the base plate (1). A rotating rod (22) is fixedly connected to the output end of the first motor (21). The rotating rod (22) is rotatably connected to the inner wall of the base plate (1). A driving bevel gear (23) is symmetrically fixedly connected to the outer wall of the rotating rod (22). A driven bevel gear (24) meshes with the top of the driving bevel gear (23). A first lead screw (25) is fixedly connected to the axis of the driven bevel gear (24). The first lead screw (25) is rotatably connected to the inner wall of the mounting plate (11).

3. The FDM printer with easy unloading according to claim 2, characterized in that, The outer wall of the first lead screw (25) is threaded with a first slider (26), and the side wall of the first slider (26) is fixedly connected with a printing platform (27). The guide block on the side wall of the printing platform (27) slides in cooperation with the vertical groove opened on the mounting plate (11). The inner wall of the printing platform (27) is provided with an electric turntable (28).

4. The FDM printer with easy unloading according to claim 2, characterized in that, The adjustment mechanism (3) includes a second motor (31), which is fixedly connected to the top of the support plate (12). The output end of the second motor (31) is fixedly connected to a second lead screw (32). The second lead screw (32) is rotatably connected to the connecting block at the top of the support plate (12). The outer wall of the second lead screw (32) is threadedly connected to a second slider (33). The second slider (33) is slidably connected to a groove on the support plate (12). The bottom end of the second slider (33) is fixedly connected to a fixed frame (34). The side wall of the fixed frame (34) is fixedly connected to a third motor (35). The output end of the third motor (35) is fixedly connected to a third lead screw (36). The third lead screw (36) is rotatably connected to the inner wall of the fixed frame (34). The outer wall of the third lead screw (36) is threadedly connected to a third slider (37). The bottom end of the third slider (37) is equipped with a printing nozzle.

5. The FDM printer with easy unloading according to claim 4, characterized in that, The top of the fixed frame (34) is symmetrically fixed with a support rod (38), and the support rod (38) is slidably connected to the guide groove opened on the support plate (12).

6. The FDM printer with easy unloading according to claim 4, characterized in that, The unloading mechanism (4) includes a fourth motor (41) and a threaded sleeve (43). The fourth motor (41) is fixedly connected to the bottom end of the fixed block (14). A gear (42) is fixedly connected to the outer wall of the output end of the fourth motor (41). The threaded sleeve (43) is rotatably connected to the inner wall of the fixed block (14) through a bearing. The outer wall of the threaded sleeve (43) is provided with tooth grooves at equal intervals in the circumference. The teeth of the gear (42) mesh with the tooth grooves. The inner wall of the threaded sleeve (43) is threadedly connected to a threaded rod (44). The end of the threaded rod (44) away from the mounting plate (11) is rotatably connected to a connecting plate (45). The end of the threaded rod (44) close to the mounting plate (11) is rotatably connected to a scraper (47). The scraper (47) is a thin stainless steel blade with its cutting edge parallel to the surface of the printing platform (27) to adapt to the bottom peeling of different contour printed parts.

7. The FDM printer with easy unloading according to claim 6, characterized in that, The side wall of the connecting plate (45) is symmetrically fixedly connected with guide rods (46), the guide rods (46) are slidably connected to the groove opened on the fixing block (14), and the end of the guide rod (46) near the fixing block (14) is fixedly connected to the side wall of the shovel (47).

8. The FDM printer with easy unloading according to claim 6, characterized in that, The first motor (21), the electric turntable (28), the second motor (31), the third motor (35) and the fourth motor (41) are electrically connected through a PLC control module.

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