Printing platform for mechanical model 3D printing equipment

Abstract

The utility model discloses a printing platform for mechanical model 3D printing equipment, which comprises a processing table, a supporting seat is fixed at the bottom of an inner cavity of the processing table, a supporting plate is fixed at the top of the supporting seat, and a clamping assembly is arranged on the surface of the supporting plate. Air pressure is supplemented from the interior of the machining table through vent holes, air is driven to flow downwards from the top of the machining table along the interior of the machining table, dust waste suspended in the air in the 3D printing process is driven to flow through a filter screen plate, the filter screen plate filters dust and attaches the dust to the top, and then a driving motor drives a driving gear through a rotating shaft to drive teeth; the movable ring drives the scraping rod to rotate to remove dust attached to the top of the filter screen plate, then the dust is discharged out of the machining table from the collecting opening along the scraping rod, the granular dust passes through the exhaust fan, normal operation of the exhaust fan can be guaranteed, and the failure rate of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a printing platform for mechanical model 3D printing equipment. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses adhesive materials such as powdered metal or plastic to construct objects by printing layer by layer.

[0003] In the prior art, the Chinese utility model with publication number: CN174027258U discloses a printing platform for a mechanical model 3D printing device, which belongs to the field of mechanical printing equipment. One surface of the base plate is fixedly connected with a supporting leg and an air suction hood, and the side of the air suction hood is fixedly connected with an air suction pipe. The air suction hood is provided with an air suction groove, and the bottom of the air suction groove is fixedly connected with a suction pipe, and the other end of the suction pipe is fixedly connected with a suction machine, and the other end of the suction machine is fixedly connected with a feed pipe. The other surface of the base plate is fixedly connected with a shielding frame, and the inner wall of the shielding frame is fixedly connected with a baffle. The shielding frame provided on the printing platform for the mechanical model 3D printing device can prevent printing powder from scattering everywhere, and the printing powder can be quickly recovered through the air suction hood, suction holes and suction machine, which can not only prevent the working environment from being contaminated by printing powder, but also avoid waste of raw materials. In addition, the provided placement plate has the function of telescoping up and down, which is convenient for users to take out the printed model after printing is completed.

[0004] The above technical solution uses a suction machine to extract the air in the shielding frame, and then the suspended printing material enters the suction chamber through the suction hole, and then passes through the westerly duct and the suction groove along the suction pipe into the suction machine. Due to the presence of fan blades inside the suction machine, dust can easily scratch the fan blades, causing the suction machine to malfunction, and the dust adheres to the inside of the pipe and is difficult to clean. Utility Model Content

[0005] The purpose of the utility model is to provide a printing platform for a mechanical model 3D printing device, which drives the air above the processing table to flow downward through the air flow, so that the air with dust passes through the filter plate, and the dust is filtered and retained on the top of the filter plate. The dust is then scraped off with a scraper rod for centralized cleaning. The dust particles in the air do not pass through the exhaust fan directly, and there is no need to worry about the exhaust fan malfunctioning, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a printing platform for a mechanical model 3D printing device, comprising a processing table, a support seat is fixed at the bottom of the inner cavity of the processing table, a support plate is fixed at the top of the support seat, a clamping assembly is arranged on the surface of the support plate, a filter screen is fixed on the outer side of the support seat, the outer side of the filter screen is fixedly connected to the inner wall of the processing table, a fixed box is installed at the bottom of the processing table, an exhaust fan is installed at the bottom of the fixed box, the air inlet end of the exhaust fan is connected with the fixed box, and vents are opened around the bottom of the processing table to connect the processing table with the fixed box, a movable ring is sleeved on the outer side of the support seat, a scraper is fixed on the outer side of the movable ring, and the scraper is attached to the top of the filter screen, a driving motor is fixed at the bottom of the processing table, a rotating shaft is fixed on the output shaft of the driving motor, the rotating shaft extends to the inside of the support seat and is fixed with a driving gear, teeth are fixed around the inner wall of the movable ring, and one side of the driving gear penetrates to the outer side of the support seat and meshes with the teeth.

[0007] Preferably, the clamping assembly includes a slide groove opened around the top of the support plate, the inner cavity of the slide groove is slidably connected to a slide seat, a limit block is installed on the top of the slide seat, and the inner cavity of the slide groove is fixed with a traction spring connected to one end of the slide seat.

[0008] Preferably, a plurality of groups of threaded holes are sequentially opened on the top of the slide seat, a countersunk hole is opened on the top of the limit block, and a fastening bolt is movably provided in the inner cavity of the countersunk hole, and the fastening bolt passes through the limit block and is threadedly connected with the threaded hole.

[0009] Preferably, a limiting groove is provided on the outer side of the support seat, and the movable ring is movably arranged in the inner cavity of the limiting groove.

[0010] Preferably, a scraper is fixed to one end of the scraper rod away from the movable ring, and the scraper extends upward and is flush with the top of the processing table.

[0011] Preferably, a collecting port is provided on the side of the processing table, and the collecting port extends inwardly to communicate with the inner cavity of the processing table and is located above the filter screen plate.

[0012] Preferably, the scraper rod is fixed on the outside of the movable ring in an inclined state and is not heavier than the diameter of the movable ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model exhausts the air in the fixed box through the exhaust fan, and then uses the vent hole to replenish the air pressure from the processing table, driving the air to flow downward from the top of the processing table along the inside of the processing table, driving the dust waste suspended in the air during the 3D printing process to flow through the filter screen plate, and the filter screen plate filters the dust and attaches it to the top, and then the driving motor drives the driving gear to drive the teeth through the rotating shaft, so that the movable ring drives the scraper rod to rotate, and the dust attached to the top of the filter screen plate is removed, and then discharged from the processing table from the collection port along the scraper rod. The granular dust passes through the exhaust fan, which can ensure the normal operation of the exhaust fan and reduce the failure rate of the device.

[0015] 2. The utility model can clamp placement plates of different sizes through the clamping assembly, so that the mechanical model remains stable during the 3D printing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of a partially exploded three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the split three-dimensional structure of the support plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the processing table of the utility model.

[0020] Numbers in the figure: 1. Processing table; 2. Support seat; 3. Support plate; 4. Clamping assembly; 41. Slide groove; 42. Slide seat; 43. Limit block; 44. Traction spring; 5. Filter screen; 6. Fixing box; 7. Exhaust fan; 8. Vent hole; 9. Movable ring; 10. Scraper rod; 11. Drive motor; 12. Drive gear; 13. Teeth; 14. Threaded hole; 15. Fastening bolt; 16. Limit groove; 17. Scraper; 18. Collection port. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figures 1 to 4The printing platform for a mechanical model 3D printing device shown in the figure includes a processing table 1, a support seat 2 is fixed at the bottom of the inner cavity of the processing table 1, a support plate 3 is fixed on the top of the support seat 2, a clamping assembly 4 is arranged on the surface of the support plate 3, a filter screen 5 is fixed on the outer side of the support seat 2, and the outer side of the filter screen 5 is fixedly connected to the inner wall of the processing table 1, a fixed box 6 is installed at the bottom of the processing table 1, an exhaust fan 7 is installed at the bottom of the fixed box 6, and the air inlet end of the exhaust fan 7 is connected to the fixed box 6, and the bottom of the processing table 1 is opened around A vent hole 8 is provided to connect the processing table 1 with the fixed box 6. A movable ring 9 is sleeved on the outer side of the support seat 2. A scraper rod 10 is fixed on the outer side of the movable ring 9. The scraper rod 10 is attached to the top of the filter screen plate 5. A driving motor 11 is fixed to the bottom of the processing table 1. A rotating shaft is fixed to the output shaft of the driving motor 11. The rotating shaft extends to the inside of the support seat 2 and is fixed with a driving gear 12. Teeth 13 are fixed around the inner wall of the movable ring 9. One side of the driving gear 12 penetrates to the outside of the support seat 2 and meshes with the teeth 13.

[0023] The air in the fixed box 6 is exhausted through the exhaust fan 7, and then the air pressure is supplemented from the processing table 1 through the vent hole 8, driving the air to flow downward from the top of the processing table 1 along the inside of the processing table 1, driving the dust waste suspended in the air during the 3D printing process to flow through the filter plate 5, and the filter plate 5 filters the dust and attaches it to the top, and then the driving motor 11 drives the driving gear 12 to drive the teeth 13 through the rotating shaft, so that the movable ring 9 drives the scraper rod 10 to rotate, and the dust attached to the top of the filter plate 5 is removed, and then discharged from the processing table 1 from the collection port 18 along the scraper rod 10. The granular dust passes through the exhaust fan 7, which can ensure the normal operation of the exhaust fan 7 and reduce the failure rate of the device.

[0024] The clamping assembly 4 includes a slide groove 41 opened around the top of the support plate 3, the inner cavity of the slide groove 41 is slidably connected to a slide seat 42, a limit block 43 is installed on the top of the slide seat 42, and the inner cavity of the slide groove 41 is fixed with a traction spring 44 connected to one end of the slide seat 42. The traction spring 44 pulls the slide seat 42 to clamp the mechanical model base, thereby ensuring the stability of the mechanical model during the printing process.

[0025] A plurality of groups of threaded holes 14 are sequentially provided on the top of the slide seat 42, a countersunk hole is provided on the top of the limit block 43, and a fastening bolt 15 is movably provided in the inner cavity of the countersunk hole. The fastening bolt 15 passes through the limit block 43 and is threadedly connected with the threaded hole 14. Through the cooperation between the fastening bolt 15 and the threaded hole 14, the position of the limit block 43 can be conveniently adjusted to ensure the tension of the clamped fixed base of the mechanical model.

[0026] A limiting groove 16 is provided on the outer side of the support seat 2, and the movable ring 9 is movably arranged in the inner cavity of the limiting groove 16. Through the setting of the limiting groove 16, the position of the movable ring 9 is conveniently limited to prevent the movable ring 9 from shaking up and down and affecting the fit between the scraper rod 10 and the filter screen plate 5.

[0027] A scraper 17 is fixed to one end of the scraper rod 10 away from the movable ring 9. The scraper 17 extends upward and is flush with the top of the processing table 1. By fixing the scraper 17 that fits the inner wall of the processing table 1 at one end of the scraper rod 10, dust particles attached to the inner wall of the processing table 1 can be removed together.

[0028] A collecting port 18 is provided on the side of the processing table 1. The collecting port 18 extends inwardly to communicate with the inner cavity of the processing table 1 and is located above the filter plate 5. The setting of the collecting port 18 facilitates the cleaned dust particles to be transported outward along the scraper rod 10. When the scraper rod 10 coincides with the collecting port 18, the dust particles are directly discharged from the inner cavity of the processing table 1 through the collecting port 18.

[0029] The scraper rod 10 is fixed on the outside of the movable ring 9 in an inclined state and is not heavier than the diameter of the movable ring 9. By setting the hanging rod structure, it is ensured that when the movable ring 9 drives the scraper rod 10 to rotate, due to the inclination of the scraper rod 10, the dust on the top of the filter screen plate 5 is gradually concentrated and integrated from the center to the outside, thereby avoiding the filter screen plate 5 from being blocked.

[0030] During specific use, the model base is placed on the support plate 3, and the traction spring 44 is used to drive the slide 42 and the limit block 43 to fix and clamp it, and then 3D printing is performed on the top of the base. During the printing process, some dust particles will be suspended in the air, and then the exhaust fan 7 is started, and the exhaust fan 7 exhausts the air in the fixed box 6. In order to balance the air pressure, the fixed box 6 allows the air in the inner cavity of the processing table 1 to flow into the fixed box 6 through the vent 8, driving the air flow in the inner cavity of the processing table 1, and the dust particles flow along the air flow through the filter screen plate 5, and then the dust particles adhere to the top of the filter screen plate 5, and start the drive motor 11. The drive motor 11 drives the drive gear 12 to rotate through the rotating shaft, and then the teeth 13 are used to drive the movable ring 9 and the scraper rod 10 to rotate on the top of the filter screen plate 5. The scraper rod 10 cleans the dust on the top of the filter screen plate 5, and then the scraper 17 cleans the dust on the inner wall of the processing table 1. The dust is transported outward along the scraper rod 10 and discharged from the processing table 1 through the collection port 18.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printing platform for a mechanical model 3D printing device, comprising a processing table (1), characterized in that: A support seat (2) is fixed at the bottom of the inner cavity of the processing table (1), a support plate (3) is fixed at the top of the support seat (2), a clamping assembly (4) is arranged on the surface of the support plate (3), a filter screen (5) is fixed on the outer side of the support seat (2), the outer side of the filter screen (5) is fixedly connected to the inner wall of the processing table (1), a fixed box (6) is installed at the bottom of the processing table (1), an exhaust fan (7) is installed at the bottom of the fixed box (6), the air inlet end of the exhaust fan (7) is connected to the fixed box (6), and the bottom of the processing table (1) is provided with a plurality of holes for connecting the processing table (1) and the fixed box (6). ) connected to the support seat (2), a movable ring (9) is sleeved on the outer side of the support seat (2), a scraper rod (10) is fixed on the outer side of the movable ring (9), and the scraper rod (10) is attached to the top of the filter screen plate (5), a driving motor (11) is fixed on the bottom of the processing table (1), and a rotating shaft is fixed to the output shaft of the driving motor (11), and the rotating shaft extends to the inside of the support seat (2) and is fixed with a driving gear (12), and teeth (13) are fixed around the inner wall of the movable ring (9), and one side of the driving gear (12) passes through the outer side of the support seat (2) and meshes with the teeth (13).

2. A printing platform for a mechanical model 3D printing device according to claim 1, characterized in that: The clamping assembly (4) comprises a slide groove (41) opened around the top of the support plate (3); the inner cavity of the slide groove (41) is slidably connected to a slide seat (42); a limit block (43) is installed on the top of the slide seat (42); and a traction spring (44) connected to one end of the slide seat (42) is fixed in the inner cavity of the slide groove (41).

3. A printing platform for a mechanical model 3D printing device according to claim 2, characterized in that: The top of the slide seat (42) is provided with a plurality of groups of threaded holes (14) in sequence, the top of the limit block (43) is provided with a countersunk hole, and a fastening bolt (15) is movably provided in the inner cavity of the countersunk hole. The fastening bolt (15) passes through the limit block (43) and is threadably connected to the threaded hole (14).

4. A printing platform for a mechanical model 3D printing device according to claim 1, characterized in that: A limiting groove (16) is provided on the outer side of the support seat (2), and the movable ring (9) is movably arranged in the inner cavity of the limiting groove (16).

5. The printing platform for a mechanical model 3D printing device according to claim 1, characterized in that: A scraper plate (17) is fixed to one end of the scraper rod (10) away from the movable ring (9), and the scraper plate (17) extends upward and is flush with the top of the processing table (1).

6. The printing platform for a mechanical model 3D printing device according to claim 1, characterized in that: A collecting port (18) is provided on the side of the processing table (1), and the collecting port (18) extends inwardly to communicate with the inner cavity of the processing table (1) and is located above the filter screen plate (5).

7. The printing platform for a mechanical model 3D printing device according to claim 1, characterized in that: The scraper rod (10) is fixed on the outside of the movable ring (9) in an inclined manner and does not overlap with the diameter of the movable ring (9).

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