FDM printer

Abstract

The utility model discloses an FDM printer which structurally comprises a main frame, a printing platform is arranged in the main frame, the printing platform is arranged in the main frame in a sliding mode through a sliding assembly, a first driving unit is further arranged in the main frame, two side plates are correspondingly arranged on the left side and the right side of the top of the main frame, and second driving units are arranged on the two side plates. A third driving unit is arranged between the two first positioning blocks, the third driving unit is provided with an x-axis lead screw, and the x-axis lead screw is connected with an extrusion unit; the 3D printing device is ingenious in design, the first driving unit, the second driving unit, the third driving unit and the printing platform are reasonably arranged in the main frame, the z-axis lead screw, the y-axis lead screw and the x-axis lead screw are driven to rotate at the same time when the 3D printing device works, the printing platform stably ascends and descends, the extrusion unit stably performs extrusion action, and the printing efficiency is improved. And in addition, the overall structure is simple and compact, easy to implement, good in structural stability and beneficial to wide application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, and more specifically, to an FDM printer. Background Art

[0002] Fused Deposition Modelling (FDM) technology is another widely used 3D printing technology after Stereolithography Apparatus (SLA) and Laminated Object Manufacturing (LOM). The working principle of FDM is to heat and melt filamentous thermoplastic materials through a nozzle. The bottom of the nozzle is equipped with a fine nozzle. Under program control, the nozzle moves to a specified position according to the data of the 3D model, extrudes the molten liquid material and finally solidifies it; the material is ejected and deposited on the previously solidified material of the previous layer, and the final product is formed by layer-by-layer stacking of the material.

[0003] Currently, for FDM printers on the market, the lifting control mainly relies on electric cylinders. Although this design has a simple structure, there are the following problems in actual use: 1. The lifting stroke of the electric cylinder is long, resulting in an increase in the overall height of the device, making it less flexible in actual applications. 2. There is a thrust during the movement of the electric cylinder, which will cause the device to vibrate and affect the printing accuracy. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide an FDM printer to solve the above technical problems.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: An FDM printer includes a main frame. A printing platform is arranged inside the main frame. The printing platform is slidably arranged inside the main frame through a sliding component. A first driving unit is also arranged inside the main frame. The first driving unit drives the printing platform to reciprocally slide along the main frame through a z-axis lead screw. Two side plates are correspondingly arranged on the left and right at the top of the main frame. A second driving unit is arranged on each of the two side plates. The second driving unit has a y-axis lead screw and the y-axis lead screw is connected with a first positioning block. A third driving unit is arranged between the two first positioning blocks. The third driving unit has an x-axis lead screw and the x-axis lead screw is connected with an extrusion unit.

[0006] The present utility model is further arranged as: The sliding component includes two first guide rails and sliders are arranged on the first guide rails. Two sliders on the same side are jointly connected with an assembly substrate. The printing platform is installed between the two assembly substrates.

[0007] The present utility model is further arranged as: A number of vertical plates adapted to the number of the first guide rails are arranged between the side plates and the main frame. Each first guide rail is fixedly installed on the inner side of the corresponding vertical plate.

[0008] The present utility model is further configured as follows: The first driving unit includes two first motors fixedly installed inside the main frame. One end of the z-axis lead screw is drivingly connected to the first motor, and the other end is rotatably fitted with the side plate. A threaded sleeve adapted to the z-axis lead screw is formed in the middle of the assembly substrate.

[0009] The present utility model is further configured as follows: The second driving unit includes a fixed substrate connected to the side plate, a second guide rail fixedly installed on the upper surface of the fixed substrate, and two fixed ears fixedly installed at the front and rear ends of the second guide rail correspondingly. The y-axis lead screw is rotatably arranged between the two fixed ears. The front end of the y-axis lead screw penetrates through the fixed ear and is connected to a second motor. The first positioning block is slidably engaged with the second guide rail, and a first threaded hole adapted to the y-axis lead screw is formed in the first positioning block.

[0010] The present utility model is further configured as follows: The third driving unit includes a connecting plate fixedly installed on the opposite sides of the two first positioning blocks and a third guide rail fixedly installed between the two connecting plates. A second positioning block is slidably arranged on the third guide rail, and a second threaded hole adapted to the x-axis lead screw is formed in the second positioning block. The x-axis lead screw is rotatably arranged between the two connecting plates. A third motor is fixedly installed on the upper surface of one of the first positioning blocks. One end of the x-axis lead screw penetrates through the connecting plate and is drivingly connected to the third motor.

[0011] The present utility model is further configured as follows: The material of the main frame is metal pipe.

[0012] In summary, the present utility model has the following beneficial effects: The present utility model is ingeniously designed. The first driving unit, the second driving unit, the third driving unit, and the printing platform are reasonably arranged inside the main frame. When the device works, the z-axis lead screw, the y-axis lead screw, and the x-axis lead screw are driven to rotate simultaneously, so that the printing platform can perform a stable lifting action, and the extrusion unit can perform a stable extrusion action, effectively improving the printing quality and printing accuracy. In addition, the overall structure is simple, compact, easy to implement, has good structural stability, and is conducive to wide popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the structures of the first driving unit, the second driving unit, and the third driving unit of the present utility model.

[0016] Reference numerals: 1, main frame; 10, printing platform; 11, first guide rail; 12, slider; 13, assembly substrate; 14, vertical plate; 2, z-axis lead screw; 20, first motor; 21, threaded kit; 3, side plate; 31, y-axis lead screw; 32, first positioning block; 33, fixed substrate; 34, second guide rail; 35, fixed ear; 36, second motor; 37, first threaded hole; 4, x-axis lead screw; 40, connecting plate; 41, third guide rail; 42, second positioning block; 43, second threaded hole; 44, third motor; 5, extrusion unit Detailed implementation mode

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0018] Please refer to Figure 1-2 As shown, a kind of FDM printer in the embodiment of the present invention includes a main frame 1. A printing platform 10 is arranged in the main frame 1. The printing platform 10 is slidably arranged in the main frame 1 through a sliding assembly. A first driving unit is also arranged in the main frame 1. The first driving unit drives the printing platform 10 to reciprocally slide along the main frame 1 through a z-axis lead screw 2. Two side plates 3 are correspondingly arranged on the left and right at the top of the main frame 1. A second driving unit is arranged on each of the two side plates 3. The second driving unit has a y-axis lead screw 31 and the y-axis lead screw 31 is connected with a first positioning block 32. A third driving unit is arranged between the two first positioning blocks 32. The third driving unit has an x-axis lead screw 4 and the x-axis lead screw 4 is connected with an extrusion unit 5.

[0019] During use, the printing platform 10 is slidably arranged in the main frame 1 through a sliding assembly. During the printing process, the first driving unit synchronously drives the two z-axis lead screws 2 to work. The two z-axis lead screws 2 drive the printing platform 10 to reciprocally slide along the main frame 1 to realize flexible adjustment of the height of the printing platform 10 to meet the working needs; through the cooperation between the second driving unit and the y-axis lead screw 31 and the cooperation between the third driving unit and the x-axis lead screw 4, the extrusion unit 5 is driven to freely move along the y-axis or x-axis direction to ensure the smoothness of the printing action;

[0020] The utility model is ingeniously designed. The first driving unit, the second driving unit, the third driving unit and the printing platform 10 are reasonably arranged in the main frame 1. When the device works, the z-axis lead screw 2, the y-axis lead screw 31 and the x-axis lead screw 4 are driven to rotate simultaneously, so that the printing platform 10 can perform a stable lifting action, and the extrusion unit 5 can perform a stable extrusion action, effectively improving the printing quality and printing accuracy. In addition, the overall structure is simple, compact, easy to implement, has good structural stability, and is conducive to wide popularization and application.

[0021] The sliding assembly includes two first guide rails 11, and sliders 12 are arranged on the first guide rails 11. Two same-side sliders 12 are jointly connected with an assembly substrate 13, and the printing platform 10 is installed between the two assembly substrates 13; A number of vertical plates 14 adapted to the number of the first guide rails 11 are arranged between the side plates 3 and the main frame 1, and each first guide rail 11 is fixedly installed on the inner side of the corresponding vertical plate 14; The first driving unit includes two first motors 20 fixedly installed inside the main frame 1. One end of the z-axis lead screw 2 is drivingly connected with the first motor 20, and the other end is rotatably matched with the side plate 3. A threaded sleeve 21 adapted to the z-axis lead screw 2 is formed in the middle of the assembly substrate 13.

[0022] During use, the two first motors 20 are started to drive the two z-axis lead screws 2 to rotate synchronously. The lower end of the z-axis lead screw 2 is drivingly connected with the first motor 20, and the upper end is rotatably matched with the side plate 3. A mating plate is fixedly installed on the lower surface of the side plate 3, and the upper end of the z-axis lead screw 2 is rotatably connected with the mating plate. The rotation of the two z-axis lead screws 2 is through the threaded connection and cooperation with the threaded sleeve 21, and the guiding cooperation of the sliding assembly, driving the printing platform 10 to perform a stable lifting action;

[0023] The sliding module can further improve the accuracy and stability of movement, so as to obtain higher-quality printed products.

[0024] The second driving unit includes a fixed substrate 33 connected to the side plate 3, a second guide rail 34 fixedly installed on the upper surface of the fixed substrate 33, and two fixed ears 35 fixedly installed at the front and rear ends of the second guide rail 34 correspondingly. The y-axis lead screw 31 is rotatably arranged between the two fixed ears 35. The front end of the y-axis lead screw 31 penetrates through the fixed ear 35 and is connected with a second motor 36. The first positioning block 32 is slidably matched with the second guide rail 34, and a first threaded hole 37 adapted to the y-axis lead screw 31 is formed in the first positioning block 32.

[0025] During use, the two second motors 36 are fixedly installed on the inner side surface of the main frame 1. The two second motors 36 are started to drive the two y-axis lead screws 31 to rotate synchronously. The rotation of the two y-axis lead screws 31 is through the threaded connection and cooperation with the first threaded hole 37 of the first positioning block 32 and the guiding cooperation between the first positioning block 32 and the second guide rail 34, driving the extrusion unit 5 to perform an extrusion action in the y-axis direction.

[0026] The third driving unit includes a connecting plate 40 fixedly installed on the opposite sides of two first positioning blocks 32, and a third guide rail 41 fixedly installed between the two connecting plates 40. A second positioning block 42 is slidably arranged on the third guide rail 41, and the second positioning block 42 is formed with a second threaded hole 43 adapted to the x-axis lead screw 4. The x-axis lead screw 4 is rotatably arranged between the two connecting plates 40. A third motor 44 is fixedly installed on the upper surface of one of the first positioning blocks 32. One end of the x-axis lead screw 4 penetrates through the connecting plate 40 and is drivingly connected to the third motor 44.

[0027] During use, start the third motor 44 to drive the x-axis lead screw 4 to rotate. The rotation of the x-axis lead screw 4, through the threaded connection and cooperation with the second threaded hole 43 of the second positioning block 42 and the guiding cooperation between the second positioning block 42 and the third guide rail 41, drives the extrusion unit 5 to perform an extrusion action in the x-axis direction.

[0028] The material of the main frame 1 is metal pipe.

[0029] During use, the material of the main frame 1 is metal pipe, preferably a customized channel steel with a size of 80*80*5mm, to ensure the overall strength of the main frame 1.

[0030] All the electrical components mentioned in this article are electrically connected to an external main controller and 220V mains power, and the main controller can be a conventional known device such as a computer for control.

[0031] At the same time, it should be pointed out that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the protection scope of this utility model.

[0032] The above is only the preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the concept of this utility model belong to the protection scope of this utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of this utility model, several improvements and retouches should also be regarded as within the protection scope of this utility model.

Claims

1. An FDM printer, comprising a main frame (1), characterized in that: A printing platform (10) is provided inside the main frame (1). The printing platform (10) is slidably arranged inside the main frame (1) through a sliding assembly. A first driving unit is also arranged inside the main frame (1). The first driving unit drives the printing platform (10) to reciprocally slide along the main frame (1) through a z-axis lead screw (2). Two side plates (3) are correspondingly arranged on the left and right at the top of the main frame (1). Second driving units are arranged on both of the two side plates (3). The second driving unit has a y-axis lead screw (31), and the y-axis lead screw (31) is connected with a first positioning block (32). A third driving unit is arranged between the two first positioning blocks (32). The third driving unit has an x-axis lead screw (4), and the x-axis lead screw (4) is connected with an extrusion unit (5).

2. The FDM printer according to claim 1, characterized in that: The sliding assembly includes two first guide rails (11), and sliders (12) are arranged on the first guide rails (11). Two sliders (12) on the same side are jointly connected with an assembly substrate (13). The printing platform (10) is installed between the two assembly substrates (13).

3. The FDM printer according to claim 2, wherein: A number of vertical plates (14) adapted to the number of the first guide rails (11) are arranged between the side plates (3) and the main frame (1). Each of the first guide rails (11) is fixedly installed on the inner side of the corresponding vertical plate (14).

4. The FDM printer according to claim 3, wherein: The first driving unit includes two first motors (20) fixedly installed inside the main frame (1). One end of the z-axis lead screw (2) is drivingly connected with the first motor (20), and the other end is rotatably matched with the side plate (3). A threaded sleeve (21) adapted to the z-axis lead screw (2) is formed in the middle of the assembly substrate (13).

5. The FDM printer according to claim 1, wherein: The second driving unit includes a fixed substrate (33) connected with the side plate (3), a second guide rail (34) fixedly installed on the upper surface of the fixed substrate (33), and two fixed ears (35) fixedly installed at the front and rear ends of the second guide rail (34) correspondingly. The y-axis lead screw (31) is rotatably arranged between the two fixed ears (35). The front end of the y-axis lead screw (31) penetrates through the fixed ear (35) and is connected with a second motor (36). The first positioning block (32) is slidably matched with the second guide rail (34), and a first threaded hole (37) adapted to the y-axis lead screw (31) is formed in the first positioning block (32).

6. The FDM printer according to claim 1, wherein: The third driving unit includes a connecting plate (40) fixedly installed on the opposite sides of the two first positioning blocks (32) and a third guide rail (41) fixedly installed between the two connecting plates (40). A second positioning block (42) is slidably arranged on the third guide rail (41), and a second threaded hole (43) adapted to the x-axis lead screw (4) is formed in the second positioning block (42). The x-axis lead screw (4) is rotatably arranged between the two connecting plates (40). A third motor (44) is fixedly installed on the upper surface of one of the first positioning blocks (32). One end of the x-axis lead screw (4) penetrates through the connecting plate (40) and is drivingly connected with the third motor (44).

7. The FDM printer according to claim 6, wherein: The material of the main frame (1) is metal pipe.

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