Manufacturing device of soluble support for powder bed metal additive manufacturing

Abstract

The utility model belongs to the technical field of metal additive manufacturing, and particularly relates to a soluble support manufacturing device for powder bed metal additive manufacturing, which comprises a 3D printer, the upper end of the 3D printer is fixedly connected with a fixing plate, the center of the fixing plate is provided with an adsorption hole, and the inner wall of the adsorption hole is fixedly connected with an air suction pipe through a sealing bearing. An adsorption device is fixedly connected to the upper surface of the fixing plate and comprises a lower shell, fixing frames are arranged on the outer surface of the lower shell in a circumferential array mode, and a through hole is formed in the circle center of the inner bottom wall of the lower shell. According to the manufacturing device, fan blades are arranged, air in the upper shell and the lower shell is pumped out under the driving of a motor, the pressure in the lower shell is reduced, and the effect of adsorbing and filtering peculiar smell gas or micro particles generated when the 3D printer prints metal powder materials is achieved; furthermore, the air filtering function can be well achieved even in a small working space.

Description

Technical Field

[0001] The utility model relates to the technical field of metal additive manufacturing, and in particular to a manufacturing device for a soluble support used for powder bed metal additive manufacturing. Background Art

[0002] Upon inquiry, a manufacturing device for soluble supports for powder bed metal additive manufacturing with publication number CN214684273U on the Chinese Patent Network produces odorous gases during 3D printing that will float in the atmosphere and may also be accompanied by tiny fixed particles. Working in this environment for a long time will have irreversible effects on the body and endanger health.

[0003] In view of the above problems, the utility model proposes a manufacturing device for soluble supports for powder bed metal additive manufacturing. Utility Model Content

[0004] Based on the existing technical problems of metal additive manufacturing, the utility model proposes a manufacturing device for soluble support for powder bed metal additive manufacturing.

[0005] The utility model proposes a manufacturing device for a soluble support for powder bed metal additive manufacturing, comprising a 3D printer, wherein the upper end of the 3D printer is fixedly connected with a fixing plate, an adsorption hole is provided at the center of the fixing plate, an air intake pipe is fixedly connected to the inner wall of the adsorption hole through a sealing bearing, an adsorption device is fixedly connected to the upper surface of the fixing plate, the adsorption device comprises a lower shell, a fixing frame is arranged in a circumferential array on the outer surface of the lower shell, a through hole is provided at the center of the inner bottom wall of the lower shell, a limiting tube is fixedly connected to the inner wall of the through hole, a filter element is slidably connected to the outer side surface of the limiting tube located inside the lower shell, and the limiting tube is slidably inserted into the inner wall of the filter element, the upper end of the lower shell is threadedly connected with the upper shell, an air outlet hole is provided on the side of the upper shell, an air outlet pipe is fixedly connected to the inner wall of the air outlet hole, the upper end of the inner wall of the upper shell is fixedly connected with the support plate, the upper surface of the support plate is fixedly connected with a base, the curved surface of the base is fixedly connected with a motor, and the output shaft of the motor is fixedly connected with a fan blade through a coupling.

[0006] Preferably, the length of the fan blade is equal to the inner diameter of the air outlet pipe and the fan blade is located inside one end of the air outlet pipe.

[0007] Preferably, the size of the support plate is matched with the size of the inner wall of the upper shell, and a fan-shaped air outlet is formed at one end of the support plate close to the air outlet pipe.

[0008] Preferably, a silicone gasket is provided on the lower surface of the support plate, the silicone gasket is matched with the upper end surface of the filter element, and the lower surface of the silicone gasket and the upper end surface of the filter element are pressed against each other.

[0009] Preferably, an external wiring hole penetrating through the inner wall of the upper shell is opened on the outer side surface of the upper shell.

[0010] Preferably, the filter element is a HEPA filter element.

[0011] The beneficial effects of the present invention are:

[0012] By arranging the air intake pipe, it is convenient for the limit pipe installed on the inner wall of the lower shell to be plugged into each other, and the fixing frame supports the lower shell to have a stabilizing effect; by arranging the fan blades, the air inside the upper shell and the lower shell is extracted under the drive of the motor, and the internal pressure of the lower shell is reduced. When the 3D printer is printed, the odorous gas generated enters the interior of the lower shell through the air intake pipe and the limit pipe, and is then filtered out through the filter element, thereby achieving an adsorption and filtration effect on the odorous gas or micro-particles generated when the 3D printer prints metal powder materials, and further achieving the air filtration function even in a small working space, reducing air pollution and avoiding the harm of harmful substances to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a manufacturing device for a soluble support for powder bed metal additive manufacturing proposed by the utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of an air intake pipe of a manufacturing device for a soluble support for powder bed metal additive manufacturing proposed by the utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of an air outlet pipe of a manufacturing device for a soluble support for powder bed metal additive manufacturing proposed by the utility model;

[0016] Figure 4 This is a cross-sectional view of the filter element position structure of a manufacturing device for a soluble support for powder bed metal additive manufacturing proposed by the utility model;

[0017] Figure 5 This is a three-dimensional diagram of the internal structure of the upper shell of a manufacturing device for soluble supports for powder bed metal additive manufacturing proposed by the utility model.

[0018] In the figure: 1. 3D printer; 2. fixing plate; 3. suction pipe; 4. adsorption device; 41. lower shell; 42. filter element; 43. limit pipe; 44. fixing frame; 45. upper shell; 46. air outlet pipe; 47. support plate; 48. base; 49. motor; 410. fan blade. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 5 A manufacturing device for soluble support for powder bed metal additive manufacturing includes a 3D printer 1, a fixed plate 2 is fixedly connected to the upper end of the 3D printer 1, an adsorption hole is opened at the center of the fixed plate 2, an air suction pipe 3 is fixedly connected to the inner wall of the adsorption hole through a sealed bearing, an adsorption device 4 is fixedly connected to the upper surface of the fixed plate 2, and the adsorption device 4 includes a lower shell 41, a fixing frame 44 is arranged in a circumferential array on the outer surface of the lower shell 41, a through hole is opened at the center of the inner bottom wall of the lower shell 41, and a limiting tube 43 is fixedly connected to the inner wall of the through hole, The limiting tube 43 is located on the outer side surface of the lower shell 41 and is slidably connected to the filter element 42. The inner wall of the filter element 42 is slidably inserted with the limiting tube 43. The upper end of the lower shell 41 is threadedly connected to the upper shell 45. An air outlet is opened on the side of the upper shell 45. The inner wall of the air outlet is fixedly connected to the air outlet pipe 46. The upper end of the inner wall of the upper shell 45 is fixedly connected to the support plate 47. The upper surface of the support plate 47 is fixedly connected to the base 48. The curved surface of the base 48 is fixedly connected to the motor 49. The output shaft of the motor 49 is fixedly connected to the fan blade 410 through a coupling.

[0021] In this embodiment, the length of the fan blade 410 is equal to the inner diameter of the air outlet pipe 46 and the fan blade 410 is located inside one end of the air outlet pipe 46; specifically, the above-mentioned structural design, the fan blade 410 located inside the air outlet pipe 46 is driven by the motor 49 to rotate, and the air inside the complete shell after the upper shell 45 and the lower shell 41 are threadedly connected is discharged, the pressure inside the complete shell is reduced, and the odor and tiny particles generated when the 3D printer 1 prints metal materials are simultaneously absorbed through the suction pipe 3, and the air filtering effect is achieved with simple equipment.

[0022] In this embodiment, the size of the support plate 47 is adapted to the inner wall size of the upper shell 45, and a fan-shaped air outlet is provided at one end of the support plate 47 close to the air outlet pipe 46; specifically, the fan-shaped structure of the support plate 47 can provide a circulation effect when the fan blades 410 exhaust air.

[0023] In this embodiment, a silicone gasket is provided on the lower surface of the support plate 47, the silicone gasket is matched with the upper surface of the upper end of the filter element 42, and the lower surface of the silicone gasket and the upper end surface of the filter element 42 are pressed against each other; specifically, the silicone gasket provided between the lower surface of the support plate 47 and the upper end surface of the filter element 42 isolates the odorous gas from overflowing from the upper end of the filter element 42 to a certain extent.

[0024] In this embodiment, an external wiring hole is opened on the outer side of the upper shell 45 and passes through the inner wall of the upper shell 45; specifically, with the above-mentioned structural design, the adsorption device 4 is installed to the upper surface of the 3D printer 1, so the entire adsorption device 4 is easy to carry and install, and the setting of the external wiring hole is not restricted to a certain extent when connecting the power supply.

[0025] In this embodiment, the filter element 42 adopts a HEPA filter element; specifically, the HEPA filter element is a high-efficiency particle filter that can capture smaller particles, especially fine metal dust, so this type of filter element is a more suitable filter purification filter element.

[0026] By providing the air intake pipe 3, it is convenient for the limiting pipe 43 installed on the inner wall of the lower shell 41 to be plugged into each other, and the fixing frame 44 supports the lower shell 41, which has a stabilizing effect; by providing the fan blades 410, the air inside the upper shell 45 and the lower shell 41 is extracted under the drive of the motor 49, and the internal pressure of the lower shell 41 is reduced. When the 3D printer 1 is printing, the odorous gas generated enters the interior of the lower shell 41 through the air intake pipe 3 and the limiting pipe 43, and is then filtered out through the filter element 42, thereby achieving an adsorption and filtration effect of odorous gas or microparticles generated when the 3D printer 1 prints metal powder materials, and further achieving a good air filtration function even in a small working space, reducing air pollution and avoiding the harm of harmful substances to the human body.

[0027] How it works:

[0028] When the 3D printer 1 starts to print metal powder, the motor 49 is turned on synchronously to drive the fan blades 410 to rotate. The fan blades 410 discharge the gas between the inner walls of the threaded upper shell 45 and the lower shell 41, and the internal pressure between the two shells is reduced. The odorous gas or smiling particles generated when the 3D printer 1 prints flow through the suction pipe 3 through the limit pipe 43 into the interior of the complete shell after the lower shell 41 and the upper shell 45 are threadedly connected, and then pass through the filter element 42. The filter element 42 starts to filter the odorous gas, and the filtered airflow rotates through the fan blades 410 and flows through the outlet pipe 46 for discharge.

[0029] 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 device for manufacturing soluble supports for powder bed metal additive manufacturing, comprising a 3D printer (1), characterized in that: The upper end of the 3D printer (1) is fixedly connected to a fixing plate (2), a suction hole is provided at the center of the fixing plate (2), an air suction pipe (3) is fixedly connected to the inner wall of the suction hole via a sealing bearing, an adsorption device (4) is fixedly connected to the upper surface of the fixing plate (2), the adsorption device (4) comprises a lower shell (41), a fixing frame (44) is arranged in a circumferential array on the outer surface of the lower shell (41), a through hole is provided at the center of the inner bottom wall of the lower shell (41), a limiting tube (43) is fixedly connected to the inner wall of the through hole, and the limiting tube (43) is located outside the lower shell (41). A filter element (42) is slidably connected to the side, and a limit tube (43) is slidably inserted into the inner wall of the filter element (42). The upper end of the lower shell (41) is threadedly connected to the upper shell (45). An air outlet is opened on the side of the upper shell (45). The inner wall of the air outlet is fixedly connected to an air outlet pipe (46). The upper end of the inner wall of the upper shell (45) is fixedly connected to a support plate (47). The upper surface of the support plate (47) is fixedly connected to a base (48). The curved surface of the base (48) is fixedly connected to a motor (49). The output shaft of the motor (49) is fixedly connected to a fan blade (410) via a coupling.

2. A manufacturing device for soluble supports for powder bed metal additive manufacturing according to claim 1, characterized in that: The length of the fan blade (410) is equal to the inner diameter of the air outlet pipe (46), and the fan blade (410) is located inside one end of the air outlet pipe (46).

3. The manufacturing device of a soluble support for powder bed metal additive manufacturing according to claim 1, characterized in that: The size of the support plate (47) is matched with the size of the inner wall of the upper shell (45), and a fan-shaped air outlet is provided at one end of the support plate (47) close to the air outlet pipe (46).

4. The manufacturing device for soluble supports for powder bed metal additive manufacturing according to claim 1, characterized in that: A silicone gasket is provided on the lower surface of the support plate (47), the silicone gasket is matched with the upper end surface of the filter element (42), and the lower surface of the silicone gasket and the upper end surface of the filter element (42) are pressed against each other.

5. The manufacturing device of a soluble support for powder bed metal additive manufacturing according to claim 1, characterized in that: The outer side surface of the upper shell (45) is provided with an external wiring hole which passes through the inner wall of the upper shell (45).

6. The manufacturing device of a soluble support for powder bed metal additive manufacturing according to claim 1, characterized in that: The filter element (42) is a HEPA filter element.

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