Powder collecting device for additive manufacturing
By employing filter plates and limiting plates with different inclined pore sizes in the additive manufacturing device, efficient classification and recycling of powder and simplified cleaning are achieved, solving the problems of low powder purity and cumbersome cleaning in the prior art, and improving the adaptability and safety of the device.
Patent Information
- Application Number
- CN202522803501.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-12-30
AI Technical Summary
Existing additive manufacturing equipment suffers from problems such as low powder purity, easy clogging of filter plates, cumbersome cleaning, limited collection range, and poor installation adaptability during powder recovery, making it difficult to achieve efficient and flexible powder recovery and recycling.
A powder collection device including filter plate one and filter plate two is designed. The filter plates are tilted in opposite directions and have different pore sizes. With the help of a limiting plate and a viewing window, two-stage filtration and visual observation of powder can be achieved. The filter plates are slidably connected for easy disassembly and cleaning. The support frame ensures the stability of the equipment and the collection pipeline has strong adaptability.
It achieves efficient classification and recovery of powders with different particle sizes, improves powder purity, simplifies the filter plate cleaning process, reduces maintenance difficulty and raw material waste, and enhances the adaptability and safety of the device.
Smart Images
Figure CN223850003U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to additive manufacturing technical field, specifically, relate to a powder collecting device for additive manufacturing. BACKGROUND
[0002] In the additive manufacturing (3D printing) process, efficient recovery and recycling of raw materials such as metal powder, resin powder are the key link to reduce production cost and improve process environmental protection. After the current additive manufacturing process is completed, a large amount of un-melted powder raw materials will be left in the printing area. If these powders cannot be recovered in time, not only will it cause waste of raw materials, but also may affect the subsequent printing precision due to powder accumulation, and even cause safety hazards such as dust diffusion.
[0003] Some devices in the prior art only use a single filtering structure, which cannot achieve the classification recovery of powders of different particle sizes, and the purity of the recovered powders is low, so additional screening treatment is required for reuse. The filter plates of some devices are fixedly installed, and the filter holes are easily clogged after long-term use, which is cumbersome to clean and maintain, and the powder may be scattered again during disassembly. Some devices have limited collection range and low powder collection efficiency, and lack visual observation structure, making it difficult to monitor the powder accumulation and filtering state in the box in real time, resulting in lag operation. In addition, the installation adaptability of some powder collecting devices is poor, and they cannot be flexibly connected with additive manufacturing equipment of different models, limiting their application scenarios.
[0004] To solve the above problems, a powder collecting device for additive manufacturing is provided. CONTENT OF THE UTILITY MODEL
[0005] To solve the above technical problems, a powder collecting device for additive manufacturing is provided.
[0006] To achieve the above purposes, the utility model can adopt the following technical solutions:
[0007] The utility model provides a powder collecting device for additive manufacturing, which comprises a powder collecting box, a filter plate one is slidably installed inside the powder collecting box, the filter plate one is inserted into the inside of the powder collecting box in an inclined manner, and the powder collecting box has a slanted groove one on the opposite side surface corresponding to the position of the filter plate one, the filter plate one can slide in and out along the slanted groove one, a guide frame two is arranged outside the lower slanted groove one, a filter plate two is slidably connected inside the powder collecting box, the filter plate two is below the filter plate one, the filter plate two is inserted into the inside of the powder collecting box in an inclined manner, the powder collecting box has a slanted groove two on the opposite side surface corresponding to the position of the filter plate two, the filter plate two can slide in and out along the slanted groove two, and a guide frame one is arranged outside the lower slanted groove two.
[0008] Preferably, the inclination directions of the filter plate one and the filter plate two are opposite, and the pore size of the filter plate one is larger than that of the filter plate two.
[0009] Preferably, a limiting plate is fixedly installed on the side of the filter plate one away from the guide frame two, and the size of the limiting plate one is larger than the size of the inclined groove one. A limiting plate two is fixedly installed on the end of the filter plate two away from the guide frame one, and the size of the limiting plate two is larger than the size of the inclined groove two.
[0010] Preferably, a viewing window is installed on one side of the powder collection box.
[0011] Preferably, a collection pipe is fixedly installed on the top of the powder collection box, and a collection cover is detachably installed on the end of the collection pipe away from the powder collection box.
[0012] Preferably, an mounting plate is fixedly installed on the top of the collection pipe, and bolts are symmetrically threaded on the surface of the mounting plate, with one end of the bolts penetrating into the interior of the collection pipe.
[0013] Preferably, a support frame is installed on the outer periphery of the powder collection box, and the two sides of the bottom of the powder collection box are inclined surfaces that converge inward. The bottom ends of the two inclined surfaces meet to form a discharge port, and a bottom cover is installed at the discharge port.
[0014] The beneficial effects of the additive manufacturing powder collection device of this utility model, as described above, are:
[0015] By setting up filter plate one and filter plate two, with different pore sizes and opposite inclination directions, after the powder is filtered through filter plate one and filter plate two, powders of different particle sizes can be discharged and collected from the corresponding feed frames respectively without additional screening. The recovered powder has higher purity and can be directly recycled for additive manufacturing processes, reducing raw material waste.
[0016] The filter plate is slidably connected to the powder collection box and positioned with the limit plate. No complicated tools are required for disassembly and cleaning. The filter plate can be quickly removed for replacement or cleaning, preventing secondary powder spillage. The bottom cover design of the powder collection box makes it easy to clean residual powder inside the box, reducing maintenance difficulty and time costs. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model from a first perspective;
[0018] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model from a second perspective;
[0019] Figure 3 This is a schematic diagram of the internal structure of the powder collection box of this utility model;
[0020] Figure 4 As shown in this utility model Figure 3 Enlarged diagram of point A in the middle.
[0021] The reference numerals in the accompanying drawings of this utility model are as follows: 1. Powder collection box; 2. Limiting plate one; 3. Collection cover; 4. Collection pipe; 6. Support frame; 7. Guide frame one; 8. Viewing window; 9. Guide frame two; 10. Limiting plate two; 11. Filter plate one; 12. Filter plate two; 13. Bolt; 14. Mounting plate. Detailed Implementation
[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] See Figures 1-4 As shown, an additive manufacturing powder collection device provided by an embodiment of this utility model will be described in detail below:
[0024] A powder collection device for additive manufacturing, such as Figures 1-4 As shown, it includes: a powder collection box 1, a filter plate 11 slidably installed inside the powder collection box 1, the filter plate 11 being inserted into the powder collection box 1 at an angle, and inclined slots 1 being opened on the opposite two sides of the powder collection box 1 corresponding to the positions of the filter plate 11. The filter plate 11 can slide in and out along the inclined slots 1, one of the inclined slots 1 being located at the top and the other inclined slot 1 being located at the bottom. A guide frame 2 9 is provided outside the inclined slot 1 located at the bottom. A limiting plate 2 is fixedly installed on the side of the filter plate 11 away from the guide frame 2 9. The size of the limiting plate 2 1 is larger than the size of the inclined slot 1, so that the limiting plate 2 1 cannot enter the inclined slot 1.
[0025] A filter plate 12 is slidably connected inside the powder collection box 1. The filter plate 12 is located below the filter plate 11 and is inserted into the powder collection box 1 at an angle, with the angle of the filter plate 12 being opposite to that of the filter plate 11. Two inclined slots are provided on opposite sides of the powder collection box 1, corresponding to the positions of the filter plate 11. The filter plate 12 can slide in and out along the inclined slots. One inclined slot is located at the top, and the other at the bottom. A guide frame 7 is provided outside the lower inclined slot. A limiting plate 10 is fixedly installed at the end of the filter plate 12 away from the guide frame 7. The size of the limiting plate 10 is larger than the size of the inclined slot, preventing the limiting plate 10 from entering the inclined slot.
[0026] The pore size of the filter holes in the filter plate one 11 is larger than that of the filter holes in the filter plate two 12, and the limiting plate one 2 and the limiting plate two 10 abut with the chute opening one and the chute opening two on both sides of the powder collecting box 1 respectively. After the powder enters the inside of the powder collecting box 1, the powder first contacts the filter plate one 11 inside the powder collecting box 1. Since the filter plate one 11 is in an inclined state and has a large pore size, the powder smaller than the pore size of the filter plate one 11 will continue to fall downward through the filter holes, and the coarse particle powder larger than the pore size of the filter plate one 11 will slide along the inclined surface of the filter plate one 11 and finally be discharged from the material guide frame two 9 installed outside one side of the powder collecting box 1, completing the preliminary classification and filtration. In the process, the limiting plate one 2 on the side of the filter plate one 11 away from the material guide frame two 9 abuts with the chute opening one, avoiding displacement of the filter plate one 11 under the impact of the powder. The fine particle powder filtered by the filter plate one 11 will pass through the filter holes and fall to the filter plate two 12. The filter plate two 12 is inclined in the opposite direction to the filter plate one 11 and has a smaller pore size. The powder smaller than the pore size of the filter plate two 12 will pass through the filter holes of the filter plate two 12 and fall downward, and the medium particle powder smaller than the pore size of the filter plate one 11 but larger than the pore size of the filter plate two 12 will slide along the inclined surface of the filter plate two 12 and be discharged from the material guide frame one 7. The limiting plate two 10 on the end of the filter plate two 12 away from the material guide frame one 7 abuts with the chute opening two, ensuring the stable position of the filter plate two 12. The ultra-fine particle powder smaller than the pore size of the filter plate two 12 will pass through the filter plate two 12 and finally fall into the bottom of the powder collecting box 1.
[0027] Further, as shown in Figures 1-4 the side of the powder collecting box 1 is installed with a visual window 8, and the top of the powder collecting box 1 is fixedly installed with a collection pipeline 4. The end of the collection pipeline 4 away from the powder collecting box 1 is detachably installed with a collection cover 3. Specifically, the top of the collection pipeline 4 is fixedly installed with a mounting plate 14, and the surface of the mounting plate 14 is symmetrically threadedly connected with a bolt 13, one end of which penetrates into the inside of the collection pipeline 4. When the collection cover 3 is installed, one end of the collection cover 3 is inserted into the collection pipeline 4, and then the bolt 13 is tightened so that the bolt 13 abuts with the collection cover 3, realizing the fixed installation of the collection cover 3 on the collection pipeline 4.
[0028] The outer periphery of the powder collecting box 1 is provided with a support frame 6, which includes a flat plate and supporting legs arranged at the four corners of the flat plate. The two side surfaces of the bottom of the powder collecting box 1 are inwardly converging inclined surfaces, and the bottom ends of the two inclined surfaces meet to form a discharge port. A bottom cover is arranged at the discharge port. The entire device is fixed on a stable ground through the support frame 6 on the outer periphery of the powder collecting box 1, so as to ensure that the device does not shake during powder collection. The collecting pipeline 4 is precisely connected with the powder discharge end of the target additive manufacturing equipment. The mounting plate 14 and the bolt 13 at the top of the collecting pipeline 4 can be used to select a suitable collecting cover 3 according to the needs, so as to ensure that the collecting cover 3 covers the powder collection range and avoids the diffusion of the powder. The staff can observe the powder accumulation amount in the box and the filtering state (such as whether the filter hole is blocked) of the filter plate one 11 and the filter plate two 12 through the visual window 8 arranged on one side of the powder collecting box 1 in real time. When the ultrafine particle powder at the bottom of the powder collecting box 1 accumulates to a certain amount, the bottom cover at the bottom of the powder collecting box 1 is opened, and the powder collection is completed. When it is observed through the visual window 8 that the filter plate one 11 or the filter plate two 12 is blocked, the filter plate one 11 or the filter plate two 12 can be directly pulled out (the sliding installation structure does not need complex tools), and after the blockage is cleaned, the filter plate is inserted into the original position along the sliding groove. The limiting plate one 2 and the limiting plate two 10 can assist the filter plate to quickly reset, so as to avoid the secondary scattering of the powder during the cleaning process.
[0029] The overall working principle of the embodiment is as follows:
[0030] The whole device is fixed on the stable ground through the support frame 6 outside the periphery of the powder collecting box 1, so that the equipment is ensured not to shake during the powder collecting process; the collecting pipeline 4 is precisely connected with the powder discharging end of the target additive manufacturing equipment through the mounting plate 14 at the top of the collecting pipeline 4 and the symmetrically distributed bolts 13 on the surface, and meanwhile, the collecting cover 3 suitable for the need is selected to ensure covering the diffusion range of the powder; the residual powder generated during the additive manufacturing is gathered through the collecting cover 3 and then enters the inside of the powder collecting box 1 along the collecting pipeline 4; the powder first contacts the filter plate one 11 inside the powder collecting box 1, the coarse particle powder with a larger aperture than the filter plate one 11 will slide along the inclined surface of the filter plate one 11 and finally be discharged from the guide frame two 9 installed outside the powder collecting box 1 on one side, so that the preliminary classification and filtration are completed; during the process, the limiting plate one 2 away from the guide frame two 9 on one side of the filter plate one 11 abuts against the powder collecting box 1, so that the displacement of the filter plate one 11 under the impact of the powder is avoided, the fine particle powder filtered through the filter plate one 11 passes through the filter hole and then falls to the filter plate two 12 inside the powder collecting box 1; the filter plate two 12 is inclined in the opposite direction of the filter plate one 11 and has a smaller aperture, the medium particle powder with an aperture smaller than the aperture of the filter plate one 11 but larger than the aperture of the filter plate two 12 will slide along the inclined surface of the filter plate two 12 and then be discharged from the guide frame one 7 fixedly installed outside the powder collecting box 1 on the side close to the filter plate two 12; the limiting plate two 10 away from the guide frame one 7 on one end of the filter plate two 12 abuts against the powder collecting box 1, so that the position of the filter plate two 12 is ensured to be stable; the superfine particle powder with an aperture smaller than the aperture of the filter plate two 12 passes through the filter plate two 12 and then finally falls to the bottom of the powder collecting box 1, the staff can observe the powder accumulation amount in the box and the filtration state (such as whether the filter hole is blocked) of the filter plate one 11 and the filter plate two 12 in real time through the visual window 8 installed on one side of the powder collecting box 1; when the superfine particle powder in the bottom of the powder collecting box 1 is accumulated to a certain amount, the bottom cover at the bottom of the powder collecting box 1 is opened, so that the collection of the powder is completed; when the filter hole of the filter plate one 11 or the filter plate two 12 is observed to be blocked through the visual window 8, the filter plate one 11 or the filter plate two 12 can be directly pulled out (the sliding installation structure does not need complicated tools), the blocking object is cleaned and then inserted back to the original position, and the limiting plate one 2 and the limiting plate two 10 can assist the filter plate to be quickly reset.
[0031] The above merely describes the embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A powder collection device for additive manufacturing, characterized by, Include: The powder collecting box (1), the filter plate one (11) is slidably installed inside the powder collecting box (1), the filter plate one (11) is inserted into the inside of the powder collecting box (1) in an inclined manner, the powder collecting box (1) is provided with a slanted slot one on the opposite side surface corresponding to the position of the filter plate one (11), the filter plate one (11) can slide in and out along the slanted slot one, the outside of the lower slanted slot one is provided with a guide frame two (9), the filter plate two (12) is slidably connected inside the powder collecting box (1), the filter plate two (12) is located below the filter plate one (11), the filter plate two (12) is inserted into the inside of the powder collecting box (1) in an inclined manner, the powder collecting box (1) is provided with a slanted slot two on the opposite side surface corresponding to the position of the filter plate two (12), the filter plate two (12) can slide in and out along the slanted slot two, the outside of the lower slanted slot two is provided with a guide frame one (7).
2. A powder collection device for additive manufacturing according to claim 1, characterized in that The inclination direction of the filter plate one (11) and the filter plate two (12) is opposite, the aperture of the filter plate one (11) is larger than the aperture of the filter plate two (12).
3. The powder collection device for additive manufacturing according to claim 1, wherein The side of the filter plate one (11) away from the guide frame two (9) is fixedly installed with a limit plate one (2), the size of the limit plate one (2) is larger than the size of the slanted slot one, the end of the filter plate two (12) away from the guide frame one (7) is fixedly installed with a limit plate two (10), the size of the limit plate two (10) is larger than the size of the slanted slot two.
4. The powder collection device for additive manufacturing according to claim 1, wherein The side of the powder collecting box (1) is installed with a visual window (8).
5. The powder collection device for additive manufacturing according to claim 1, wherein The top of the powder collecting box (1) is fixedly installed with a collecting pipeline (4), the end of the collecting pipeline (4) away from the powder collecting box (1) is detachably installed with a collecting cover (3).
6. A powder collection device for additive manufacturing according to claim 5, characterized in that The top of the collecting pipeline (4) is fixedly installed with a mounting plate (14), the surface of the mounting plate (14) is symmetrically screw-connected with a bolt (13), one end of the bolt (13) penetrates into the inside of the collecting pipeline (4).
7. The powder collection device for additive manufacturing according to claim 1, wherein The periphery of the powder collecting box (1) is installed with a support frame (6), the bottom of the powder collecting box (1) is provided with two inward converging inclined surfaces, the bottom ends of the two inclined surfaces converge to form a discharge port, the discharge port is installed with a bottom cover.