A 3D printed aircraft rudder shaft polishing powder recycling device

Abstract

The utility model belongs to the technical field of powder cleaning machine, especially 3D printing's aircraft rudder shaft polishing powder recovery device, including powder cleaning machine body, the bottom of powder cleaning machine body is provided with recovery mechanism, recovery mechanism includes filter screen, the aperture structure of filter screen is filtered to the powder that falls because of gravity, passes through setting dust extraction mechanism, detects the powder concentration in air, support frame and electric push rod fixed mounting, to its fixed, the telescopic of electric push rod can drive dust extraction frame to remove to adjust the relative distance between the rotator device of workpiece and placement, dust extraction frame adopts half ring structure, its inner diameter is slightly greater than the outer diameter of rotator device, ensures that the floating powder that workpiece produces when rotating and vibrating can be effectively absorbed.

Description

Technical Field

[0001] This utility model relates to the field of powder cleaning machine technology, and in particular to a 3D printed aircraft rudder shaft grinding powder recovery device. Background Technology

[0002] As a key structural component in 3D printing, aircraft control shafts are typically formed using metal powder through selective laser melting or electron beam melting processes. During the printing process, incompletely melted powder remains in the complex structure of the control shaft, forming highly adhesive residual powder. Therefore, specialized equipment is needed to remove residual powder from the workpiece surface using a powder cleaner. In the field of 3D printing, its core function is similar to that of a traditional grain processing powder cleaner, utilizing the synergistic effect of sieving and airflow to break the adhesion between the powder and the workpiece through rotational vibration, causing the powder to fall off.

[0003] In existing technologies, the detached powder contains infusible particles or impurities. If the impurities in the powder are not removed in time during recycling, the entire batch of recycled powder cannot be reused, resulting in resource waste. Furthermore, during the powder detachment process, some powder floats in the air and diffuses into the working environment, causing air pollution. Therefore, a 3D printed aircraft rudder shaft grinding powder recycling device is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In order to address the technical problems in the prior art, such as the inability to reuse the entire batch of recycled powder if impurities in the powder are not removed in time, and the fact that some powder floats in the air during the powder separation process, thus spreading into the working environment and causing air pollution, this application provides a 3D printed aircraft rudder shaft grinding powder recycling device.

[0005] This utility model proposes a 3D printed aircraft rudder shaft grinding powder recovery device, including a powder cleaning machine body. The bottom end of the powder cleaning machine body is provided with a recovery mechanism, which includes a filter screen. The filter screen filters the powder that falls due to gravity through its pore structure.

[0006] The top of the dust removal machine body is equipped with a dust collection mechanism, which includes a dust sensor that detects the concentration of powder in the air through the principle of light scattering.

[0007] Preferably, the recycling mechanism further includes a receiving hopper, which is fixedly installed on the upper surface of the bottom support of the powder cleaning machine body.

[0008] The above technical solution involves fixing the hopper to the main body of the powder cleaning machine. The hopper is used to collect the powder that falls due to gravity when the rotating device on the main body of the powder cleaning machine drives the internal workpiece to rotate and vibrate. The hopper can be made of stainless steel, which has a smooth surface, is corrosion-resistant, and easy to clean, ensuring that there is no pollution during the powder collection process.

[0009] Preferably, the left side of the receiving hopper is provided with a discharge port, and the filter screen is fixedly installed on the inner side wall of the discharge port.

[0010] The above technical solution involves a discharge port on the receiving hopper, which is inclined. Powder naturally slides to the discharge port under gravity. A filter screen is fixedly installed at the discharge port to ensure high purity of the discharged powder, allowing for direct recycling. The filter screen's pore size can be selected from 0.1mm to 0.5mm to filter out infusible particles and impurities, while allowing qualified powder to pass through into the subsequent collection device. The specific size can be configured according to actual conditions. The filter screen can be made of stainless steel for easy cleaning. All fixings within the recycling mechanism can be installed using bolts for easy maintenance and cleaning.

[0011] Preferably, the dust collection mechanism further includes a support frame, which is fixedly installed on the outer side of the dust cleaning machine body.

[0012] The above technical solution involves fixing the support frame to the main body of the dust cleaning machine to provide stable support for the dust collection frame and electric push rod. The support frame is also made of stainless steel, which has high strength and is suitable for long-term use.

[0013] Preferably, an electric push rod is fixedly installed on the outer side of the support frame, and a semi-circular dust collection frame is fixedly installed at one end of the telescopic rod of the electric push rod. The slide rod of the dust collection frame is slidably inserted into the inner wall of the groove of the support frame.

[0014] The above technical solution involves fixing the electric push rod to the support frame. The electric push rod can be a PA-12 model and equipped with a controller and position sensor for precise control. The telescopic rod of the electric push rod is fixed to the dust collection frame. The extension and retraction of the telescopic rod can move the dust collection frame, thereby adjusting the relative distance between it and the rotating device that holds the workpiece. The sliding rod of the dust collection frame is slidably connected to the support frame to ensure the stability of the dust collection frame's movement. Both sides of the dust cleaning machine body are equipped with support frames, electric push rods, and dust collection frames. The dust collection frame adopts a semi-circular structure, with its inner diameter slightly larger than the outer diameter of the rotating device, ensuring that the floating powder generated when the workpiece rotates and vibrates can be effectively absorbed.

[0015] Preferably, a fan is fixedly installed on the top front side of the dust cleaning machine body, and a feed pipe is fixedly connected to the feed end of the fan. One end of the feed pipe is fixedly connected to the outer side of the dust collection frame through a flexible hose.

[0016] The above technical solution involves fixing the pulverizer body to the fan, connecting the fan's feed end to the feed pipe, and connecting the feed pipe to the dust collection frame via a flexible hose. This allows for the extraction of airborne powder. The dust collection frame has multiple small-diameter through-holes, allowing only floating powder to enter, effectively preventing large particles from being sucked into the fan. The fan is made of stainless steel. An M9-26 type pulverized coal centrifugal fan can be used, featuring large air volume, high efficiency, and stable operation, meeting the pulverizer's requirements for extracting floating powder. The feed pipe can be made of stainless steel, and the flexible hose can be made of polyurethane, providing good bending performance to accommodate the movement and vibration of the dust collection frame. The inner diameter of the dust collection frame is slightly larger than the outer diameter of the workpiece, ensuring that floating powder generated during workpiece rotation and vibration is effectively absorbed.

[0017] Preferably, the discharge end of the blower is fixedly connected to a discharge pipe, and the dust sensor is fixedly installed on the curved inner wall surface of the dust collection frame.

[0018] The above technical solution involves a fixed connection between the fan's discharge end and the discharge pipe, which in turn is fixedly connected to a cyclone separator. Centrifugal force is used to separate the powder from the air. The powder falls into a subsequent collection device, while the air is discharged through a filter. The discharge pipe is also made of stainless steel. A dust sensor is fixedly installed on the dust collection frame. The dust sensor model can be PMS5003ST, which has a high protection level and is suitable for harsh environments. It refreshes the data every 5 seconds to ensure real-time monitoring accuracy. The dust sensor detects the powder concentration and feeds the data back to the control system to adjust the fan power, start or stop the equipment, or adjust the relative distance between the dust collection frame and the rotating device via an electric push rod. The fixed installation in the dust collection mechanism can also be done with bolts for subsequent maintenance and cleaning.

[0019] The beneficial effects of this utility model are as follows: 1. By setting up a recycling mechanism, the powder that falls due to gravity is filtered. The collection hopper is used to collect the powder that falls due to gravity when the rotating device on the main body of the powder cleaner drives the internal workpiece to rotate and vibrate. The powder naturally slides to the discharge port under the action of gravity. The filter screen filters the powder at the discharge port to ensure that the discharged powder has high purity and can be directly recycled. This solves the technical problem in the existing technology that the detached powder contains infusible particles or impurities. If the impurities in the powder are not removed in time during recycling, the entire batch of recycled powder cannot be reused, resulting in resource waste.

[0020] 2. By setting up a dust collection mechanism to detect the concentration of powder in the air, the support frame and electric push rod are fixedly installed and secured. The extension and retraction of the electric push rod can drive the dust collection frame to move, thereby adjusting the relative distance between it and the rotating device on which the workpiece is placed. The dust collection frame adopts a semi-circular structure, with its inner diameter slightly larger than the outer diameter of the rotating device, ensuring that the floating powder generated when the workpiece rotates and vibrates can be effectively absorbed. The feed end of the fan is fixedly connected to the feed pipe, and the hose on the feed pipe is fixedly connected to the dust collection frame to suck up the floating powder in the air. The discharge end of the fan is fixedly connected to the discharge pipe, which can be fixedly connected to the cyclone separator. Centrifugal force is used to separate the powder from the air. The powder falls into the subsequent collection device, while the air is discharged through the filter. The dust sensor detects the powder concentration and feeds the data back to the control system to adjust the fan power, start and stop the equipment, or adjust the relative distance between the dust collection frame and the rotating device through the electric push rod. This solves the technical problem in the prior art where some powder floats in the air during the powder separation process, thus spreading into the working environment and causing air pollution. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a 3D-printed aircraft rudder shaft grinding powder recovery device proposed in this utility model. Figure 2 A perspective view of the hopper structure of a 3D-printed aircraft rudder shaft grinding powder recovery device proposed in this utility model; Figure 3 A perspective view of the filter structure of a 3D-printed aircraft rudder shaft grinding powder recovery device proposed in this utility model; Figure 4 A perspective view of the electric push rod structure of a 3D-printed aircraft rudder shaft grinding powder recovery device proposed in this utility model; Figure 5 This is a perspective view of the dust collection frame structure of a 3D-printed aircraft rudder shaft grinding powder recovery device proposed in this utility model.

[0022] In the diagram: 1. Main body of the dust cleaning machine; 2. Feed hopper; 3. Discharge port; 31. Filter screen; 4. Support frame; 5. Electric push rod; 51. Dust collection frame; 6. Fan; 61. Feed pipe; 7. Discharge pipe; 71. Dust sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-5A 3D-printed aircraft rudder shaft grinding powder recovery device includes a powder cleaning machine body 1, and a recovery mechanism is provided at the bottom of the powder cleaning machine body 1. The recovery mechanism includes a filter screen 31, which filters the powder that falls due to gravity through the pore structure of the filter screen 31.

[0025] To ensure that the powder collection process is pollution-free, the recycling mechanism also includes a collection hopper 2. The collection hopper 2 is fixedly installed on the upper surface of the bottom support of the powder cleaning machine body 1. The collection hopper 2 is fixedly installed to the powder cleaning machine body 1. The collection hopper 2 is used to collect the powder that falls due to gravity when the rotating device on the powder cleaning machine body 1 drives the internal workpiece to rotate and vibrate. The material of the collection hopper 2 can be stainless steel, which has a smooth surface, is corrosion-resistant and easy to clean, and can ensure that the powder collection process is pollution-free.

[0026] To filter the powder at outlet 3, an outlet 3 is provided on the left side of the receiving hopper 2. A filter screen 31 is fixedly installed on the inner wall of the outlet 3. The receiving hopper 2 is inclined, and the powder naturally slides to the outlet 3 under gravity. The filter screen 31 is fixedly installed to the outlet 3. The filter screen 31 filters the powder at outlet 3, ensuring that the discharged powder has high purity and can be directly recycled. The pore size of the filter screen 31 can be selected from 0.1mm to 0.5mm to filter out infusible particles and impurities, while allowing qualified powder to pass through and enter the subsequent collection device. The specific setting can be determined according to the actual situation. The material can be stainless steel for easy cleaning. The fixed installation in the recycling mechanism can be installed with bolts for easy maintenance and cleaning.

[0027] By setting up a recycling mechanism, the powder that falls due to gravity is filtered. The collection hopper 2 is used to collect the powder that falls due to gravity when the rotating device on the main body 1 drives the internal workpiece to rotate and vibrate. The powder naturally slides to the discharge port 3 under the action of gravity. The filter screen 31 filters the powder at the discharge port 3 to ensure that the discharged powder has high purity and can be directly recycled. This solves the technical problem in the prior art that the detached powder contains infusible particles or impurities. If the impurities in the powder are not removed in time during recycling, the entire batch of recycled powder cannot be reused, resulting in resource waste.

[0028] In order to detect the concentration of powder in the air, a dust collection mechanism is provided at the top of the dust collector body 1. The dust collection mechanism includes a dust sensor 71, which detects the concentration of powder in the air through the principle of light scattering.

[0029] To provide stable support for the dust collection frame 51 and the electric push rod 5, the dust collection mechanism also includes a support frame 4. The support frame 4 is fixedly installed on the outer side of the dust cleaning machine body 1. The support frame 4 is fixedly installed to the dust cleaning machine body 1 to provide stable support for the dust collection frame 51 and the electric push rod 5. The support frame 4 is also made of stainless steel, which has high strength and is suitable for long-term use.

[0030] To move the dust collection frame 51, an electric push rod 5 is fixedly installed on the outer side of the support frame 4. A semi-circular dust collection frame 51 is fixedly installed at one end of the telescopic rod of the electric push rod 5. The sliding rod of the dust collection frame 51 is slidably inserted into the inner wall of the groove of the support frame 4. The support frame 4 is fixedly installed with the electric push rod 5. The electric push rod 5 can be a PA-12 electric push rod 5, equipped with a controller and a position sensor to achieve precise control. The extension and retraction of the telescopic rod of the electric push rod 5 can move the dust collection frame 51, thereby adjusting the relative distance between it and the rotating device that holds the workpiece. The sliding rod of the dust collection frame 51 is slidably inserted into the support frame 4 to ensure the stability of the movement of the dust collection frame 51. The dust cleaning machine body 1 is equipped with a support frame 4, an electric push rod 5, and a dust collection frame 51 on both sides. The dust collection frame 51 adopts a semi-circular structure, and its inner diameter is slightly larger than the outer diameter of the rotating device to ensure that the floating powder generated by the workpiece during rotation and vibration can be effectively absorbed.

[0031] To ensure effective absorption of floating powder generated during workpiece rotation and vibration, a fan 6 is fixedly installed on the top front side of the dust collector body 1. A feed pipe 61 is fixedly connected to the feed end of the fan 6. One end of the feed pipe 61 is fixedly connected to the outer side of the dust collection frame 51 via a flexible hose. The dust collector body 1 is fixedly installed and secured to the fan 6. The feed pipe 61 is fixedly connected to the feed end of the fan 6, and the flexible hose on the feed pipe 61 is fixedly connected to the dust collection frame 51. This system draws in floating powder from the air. The dust collection frame 51 has multiple through holes with small diameters, allowing only a limited amount of air to pass through. The entry of floating powder effectively prevents large particles of impurities from being sucked into the blower 6, which is also made of stainless steel. The blower 6 can be an M9-26 type coal powder centrifugal fan 6, which has the characteristics of large air volume, high efficiency and stable operation, and can meet the suction needs of the cleaning machine for floating powder. The feed pipe 61 can be made of stainless steel, and the hose can be made of polyurethane, which has good bending performance and can adapt to the movement and vibration of the dust collection frame 51. The inner diameter of the dust collection frame 51 is slightly larger than the outer diameter of the workpiece, ensuring that the floating powder generated when the workpiece rotates and vibrates can be effectively absorbed.

[0032] The discharge end of the blower 6 is fixedly connected to the discharge pipe 7. The dust sensor 71 is fixedly installed on the curved inner wall surface of the dust collection frame 51. The discharge end of the blower 6 is fixedly connected to the discharge pipe 7, which can be fixedly connected to the cyclone separator. Centrifugal force is used to separate the powder from the air. The powder falls into the subsequent collection device, while the air is discharged through the filter. The discharge pipe 7 is also made of stainless steel. The dust sensor 71 is fixedly installed to the dust collection frame 51. The dust sensor 71 can be a PMS5003ST model, which has a high protection level and is suitable for harsh environments. It refreshes the data every 5 seconds to ensure real-time monitoring accuracy. The dust sensor 71 detects the powder concentration and feeds the data back to the control system to adjust the power of the blower 6, start or stop the equipment, or adjust the relative distance between the dust collection frame 51 and the rotating device through the electric push rod 5. The fixed installation in the dust collection mechanism can also be fixed with bolts for subsequent maintenance and cleaning.

[0033] By setting up a dust collection mechanism to detect the concentration of powder in the air, the support frame 4 is fixedly installed with the electric push rod 5. The extension and retraction of the electric push rod 5 can drive the dust collection frame 51 to move, thereby adjusting the relative distance between it and the rotating device on which the workpiece is placed. The dust collection frame 51 adopts a semi-circular structure, with its inner diameter slightly larger than the outer diameter of the rotating device, ensuring that the floating powder generated when the workpiece rotates and vibrates can be effectively absorbed. The feed end of the fan 6 is fixedly connected to the feed pipe 61, and the hose on the feed pipe 61 is fixedly connected to the dust collection frame 51 to suck up the floating powder in the air. The powder is fixedly connected to the discharge pipe 7 of the blower 6, which can be fixedly connected to the cyclone separator. Centrifugal force is used to separate the powder from the air. The powder falls into the subsequent collection device, while the air is discharged through the filter. The dust sensor 71 detects the powder concentration and feeds the data back to the control system to adjust the power of the blower 6, start and stop the equipment, or adjust the relative distance between the dust collection frame 51 and the rotating device through the electric push rod 5. This solves the technical problem in the prior art that some powder floats in the air during the powder separation process, thus spreading into the working environment and causing air pollution.

[0034] Working principle: The operator fixes the 3D printed aircraft rudder shaft inside the rotating body device of the powder cleaning machine body 1. The control system starts the rotating body device through the program, which drives the workpiece to rotate and vibrate. The centrifugal force and mechanical vibration are used to break the adsorption force between the powder and the workpiece. Unmelted metal powder falls off due to vibration and falls into the collection hopper 2 under the action of gravity. The collection hopper 2 is designed to be inclined. The powder slides to the discharge port 3. The filter screen 31 filters out unmelted particles and impurities. Qualified powder enters the subsequent collection device. During vibration, some fine powder is suspended in the air, forming floating powder. The control system starts the fan 6 through the program, and generates negative pressure through the feed pipe 61 and the hose to draw the floating powder into the dust collection frame 51. The diameter of the through hole in the dust collection frame 51 is small, allowing only fine powder to enter, preventing large particles of impurities from being sucked into the fan 6. The dust sensor 71 is installed on the inner wall of the arc of the dust collection frame 51 and monitors the concentration of powder in the air in real time through the principle of light scattering. The data is refreshed every 5 seconds to ensure monitoring accuracy. The sensor feeds back the concentration data to the control system, which adjusts according to the concentration change. When the concentration is high, the power of the fan 6 is increased, and when the concentration is low, the power of the fan 6 is reduced to save energy and reduce noise. At the same time, the electric push rod 5 is started. The extension and retraction of its extension rod drives the dust collection frame 51 to move, thereby adjusting the distance between the dust collection frame 51 and the rotating device to optimize the dust collection efficiency. When the concentration is below the threshold, the fan 6 automatically stops to avoid idling and waste. The powder drawn by the blower 6 enters the cyclone separator through the discharge pipe 7. Centrifugal force is used to separate the powder from the air. The powder falls into the collection device, and the air is discharged through the filter. The qualified powder after filtration can be directly recycled for 3D printing, reducing resource waste. Impurities and unmelted particles are centrally processed to avoid pollution. Electric push rod 5, slide rod and other moving parts need to be lubricated with grease, such as lithium-based grease, regularly to reduce wear. Fan 6 bearings need to be lubricated according to the manufacturer's recommended cycle to ensure smooth operation. Regularly disassemble filter 31 to remove clogged impurities and ensure filtration efficiency. Regularly check whether the through holes of dust collection frame 51 are blocked, and backflush with compressed air if necessary. Regularly calibrate dust sensor 71 to ensure monitoring accuracy. Check polyurethane hose for aging or damage and replace it in time. Both the recycling mechanism and the dust collection mechanism are fixedly installed using bolt connections. It is necessary to check the bolts regularly to ensure that they are not loose and to ensure structural stability.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A 3D-printed aircraft rudder shaft grinding powder recovery device, comprising a powder cleaning machine body (1), characterized in that: The bottom end of the powder cleaning machine body (1) is provided with a recycling mechanism, which includes a filter screen (31) to filter the powder that falls due to gravity through the pore structure of the filter screen (31). The top of the cleaning machine body (1) is provided with a dust suction mechanism, which includes a dust sensor (71). The dust sensor (71) detects the concentration of powder in the air by means of light scattering.

2. The 3D-printed aircraft rudder shaft grinding powder recovery device according to claim 1, characterized in that: The recycling mechanism also includes a receiving hopper (2), which is fixedly installed on the upper surface of the bottom support of the purifier body (1).

3. The 3D-printed aircraft rudder shaft grinding powder recovery device according to claim 2, characterized in that: The receiving hopper (2) has a discharge port (3) on its left side, and the filter screen (31) is fixedly installed on the inner wall of the discharge port (3).

4. The 3D-printed aircraft rudder shaft grinding powder recovery device according to claim 1, characterized in that: The dust collection mechanism also includes a support frame (4), which is fixedly installed on the outer side of the dust cleaning machine body (1).

5. The 3D-printed aircraft rudder shaft grinding powder recovery device according to claim 4, characterized in that: An electric push rod (5) is fixedly installed on the outer side of the support frame (4). A semi-circular dust collection frame (51) is fixedly installed at one end of the telescopic rod of the electric push rod (5). The slide rod of the dust collection frame (51) is slidably inserted into the inner wall of the groove of the support frame (4).

6. The 3D-printed aircraft rudder shaft grinding powder recovery device according to claim 5, characterized in that: A fan (6) is fixedly installed on the front side of the top of the dust cleaning machine body (1). The feed end of the fan (6) is fixedly connected to a feed pipe (61). One end of the feed pipe (61) is fixedly connected to the outer side of the dust collection frame (51) through a hose.

7. The 3D-printed aircraft rudder shaft grinding powder recovery device according to claim 6, characterized in that: The discharge end of the blower (6) is fixedly connected to the discharge pipe (7), and the dust sensor (71) is fixedly installed on the curved inner wall surface of the dust collection frame (51).

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