3D printing automatic powder cleaning device

Abstract

The utility model relates to 3D printing powder cleaning technical field discloses 3D printing automatic powder cleaning device, include: vertical board, the front side of vertical board is equipped with the backplate, the backplate is connected with the vertical board through powder cleaning subassembly, powder cleaning subassembly includes: cylinder, the bottom end of backplate is fixedly connected in the cylinder, the outer wall both sides of cylinder all are rotatively connected with the support plate. This 3D printing automatic powder cleaning device, through the cooperation between vertical board, backplate and powder cleaning subassembly, makes the workpiece intermittent swing before and after, the most part powder that the workpiece surface adheres falls under the action of gravity and centrifugal force, simultaneously, starts vibration motor, since the support plate is connected with the vertical board through the soft support and support seat, the support plate, cylinder, backplate and workpiece can produce the vibration after vibration motor operation, the residual powder in the hole hole of workpiece and internal gap further falls, and this design can reduce the physical consumption of operator, promotes the powder cleaning operation quality and efficiency of workpiece.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing powder cleaning technology, specifically to an automatic powder cleaning device for 3D printing. Background Technology

[0002] With the increasing maturity of 3D printing technology, its applications have expanded to numerous fields such as aerospace, automotive manufacturing, medical devices, and mold design. 3D printing constructs three-dimensional solid parts by layer-by-layer material deposition. During the printing process, powdered materials are typically used as printing raw materials to ensure print quality and forming accuracy. However, after printing, a large amount of unused powder often adheres to the surface and interior of the workpiece. This powder residue not only affects the appearance quality of the workpiece but may also adversely impact subsequent processing, performance testing, and actual use. Therefore, removing the powder adhering to the workpiece has become an indispensable and crucial step in the 3D printing production process.

[0003] Currently, manual flipping is a common method for cleaning powder from 3D printed parts. The process involves the operator using a crane or similar tool to lift the printed part and then manually flipping it, hoping that this will cause most of the powder adhering to the inside and outside of the part to fall off automatically. Afterward, the operator uses an air gun or similar tool to further clean the surface of the part to remove any remaining powder.

[0004] However, this traditional manual powder removal method has several significant drawbacks. First, the powder removal effect is incomplete. Due to the difficulty in precisely controlling the angle, force, and operational stability of manual rotation, a considerable amount of powder remains on the workpiece. This is especially true when the workpiece has a complex internal structure with small gaps or holes, making it difficult to completely remove the powder from these areas. Consequently, the powder removal quality cannot be effectively guaranteed, affecting the overall quality and performance of the workpiece. Second, the powder removal efficiency is low. The manual powder removal process requires operators to spend a significant amount of time and effort on repeated operations. From hoisting and rotation to air gun cleaning, each step requires manual completion. This is not only labor-intensive but also time-consuming, making it difficult to meet the high-efficiency requirements of large-scale 3D printing production and hindering the improvement of production efficiency. Third, it poses potential health hazards to operators. When performing manual powder removal operations in open environments such as outdoors, a large amount of powder will diffuse into the air. Long-term exposure to such an environment can easily lead to powder inhalation, damaging the respiratory tract, lungs, and other organs, causing various occupational diseases, and seriously threatening the operators' health. Utility Model Content

[0005] The purpose of this invention is to provide an automatic powder cleaning device for 3D printing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic powder cleaning device for 3D printing, comprising: a vertical plate, a support plate on the front side of the vertical plate, the support plate being connected to the vertical plate via a powder cleaning assembly, the powder cleaning assembly comprising: a cylinder, the cylinder being fixedly connected to the bottom end of the support plate, support plates being rotatably connected to both the left and right sides of the outer wall of the cylinder, a flexible bracket being fixedly connected to the bottom end of the support plate, the flexible bracket being connected to the vertical plate via a support seat, a first gear being fixedly sleeved on the left end of the outer wall of the cylinder, a second gear being meshed above the first gear, a rotating rod being fixedly connected to the inner wall of the second gear, a servo motor being fixedly connected to the left end of the rotating rod, the outer shell of the servo motor being fixedly connected to the support plate via a frame, a vibration motor being installed on the right surface of the right side of the support plate, a pair of support blocks being fixedly connected to the upper surface of the support plate, an electric push rod being fixedly installed on the inner wall of the support blocks, and a clamping plate being fixedly connected to the telescopic shaft end of the electric push rod.

[0007] Preferably, a protective component is provided on the outer side of the cylinder. The protective component includes: a flexible strip located on the outer side of the cylinder and fixedly connected to a vertical plate; multiple slots are provided on the front surface of the flexible strip; magnetic plates are fixedly attached to the inner end faces of the slots; the slots can be inserted into by a rod; an isolation frame is fixedly attached to one end of the rod; an observation window is embedded and fixedly attached to the front surface of the isolation frame; a pair of openings are provided on the surface of the observation window; an elastic cloth cover is provided on the front side of the openings; the elastic cloth cover is fixedly connected to the observation window; and two threading tubes are fixedly attached to the side wall of the isolation frame, the threading tubes penetrating a portion of the isolation frame.

[0008] Preferably, a cleaning assembly is provided below the cylinder. The cleaning assembly includes: a cavity groove plate located below the cylinder and fixedly connected to a vertical plate; a through groove is formed on the upper surface of the cavity groove plate; a filter plate is installed above the through groove; the filter plate is connected to the cavity groove plate by bolts; a vertical pipe is fixedly connected to the lower surface of the cavity groove plate; a dust collection tank is fixedly connected to the bottom end of the vertical pipe; an exhaust fan is fixedly connected to the air outlet port of the dust collection tank; and an air supply pipe is fixedly connected to the air outlet port of the exhaust fan.

[0009] Preferably, the end face of the clamping plate away from the electric push rod is provided with a stabilizing component. The stabilizing component includes: a plurality of insertion holes, the plurality of insertion holes being evenly opened on the end face of the clamping plate away from the electric push rod, a compression spring being fixedly connected to the inner end face of the insertion hole, a stop rod being fixedly connected to the end of the compression spring away from the inner end face of the insertion hole, and an anti-slip head being fixedly connected to the end of the stop rod away from the compression spring.

[0010] Preferably, the clamping plate has a groove inside, and multiple strips are provided inside the groove. The multiple strips are fixedly connected to each other by a connecting rod. Multiple protruding rods are fixedly connected to the end face of the strips facing the insertion hole. An arc-shaped block is fixedly connected to the end of the protruding rod away from the strip. A lead screw is threaded to the front surface of the clamping plate. The lead screw is rotatably connected to the strip through a ball bearing. A knob is fixedly connected to the end of the lead screw away from the strip. A dust cover is installed between the knob and the clamping plate.

[0011] Preferably, the vibrating motor and the first gear are both fitted with protective shells on their outer sides. The protective shells are fixedly connected to the support plate. The bottom end of the vertical plate is fixedly connected to a base plate, and the four corners of the lower surface of the base plate are all fixedly connected to casters.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This automatic powder cleaning device for 3D printing has the following advantages over traditional technology:

[0013] Through the coordination of the vertical plate, the pallet, and the powder cleaning assembly, the operator first uses a crane to lift the workpiece to be cleaned onto the pallet. Then, the electric push rod is driven to clamp and fix the workpiece in place by the two clamping plates. Next, the servo motor is driven to rotate the rotating rod and the second gear. The second gear meshes with the first gear, which in turn causes the first gear and the cylinder to rotate. At the same time, the pallet, the two clamping plates, and the workpiece rotate 180°. At this time, the output shaft of the servo motor continuously rotates forward and backward, causing the workpiece to swing back and forth intermittently. Most of the powder adhering to the surface of the workpiece falls off under the action of gravity and centrifugal force. At the same time, the vibration motor is started. Since the support plate is connected to the vertical plate through the soft bracket and the support seat, the vibration motor can cause the support plate, the cylinder, the pallet, and the workpiece to vibrate after it runs. The residual powder on the workpiece and in the internal gaps and holes further falls off. This design can reduce the physical exertion of the operator and improve the quality and efficiency of the powder cleaning operation of the workpiece.

[0014] Through the cooperation of the vertical plate, support plate, powder cleaning component, and protective component, before the workpiece is cleaned, the workpiece is clamped and fixed by the clamping plate. The operator inserts multiple rods into the slots, and the magnetic suction plate magnetically attracts the rods, making the isolation frame and the soft strip press tightly together. During this process, the wire-threading soft tube on the side wall of the isolation frame allows the power cord and air supply pipe to pass through. During the subsequent dust cleaning operation, the dust will not spread to the outside world, thereby improving the working environment around the work. In addition, the operator can reach into the isolation frame with their hands through the elastic cloth sleeves to use the air gun to perform a final cleaning of the workpiece surface. At this time, the powder on the workpiece has been basically completely cleaned. Finally, the isolation frame is removed, the power supply to the vibration motor is stopped, the servo motor is driven to reset the support plate, and then the electric push rod is driven to move the clamping plate away from the workpiece, remove the workpiece, and complete the powder cleaning operation.

[0015] Through the cooperation of the vertical plate, pallet, powder cleaning component, protective component and cleaning component, during the powder cleaning operation of the workpiece, most of the powder falling off the workpiece will fall onto the surface of the cavity slot plate. The operator starts the exhaust fan to create a negative pressure state inside the cavity slot plate. The filter plate above the opening generates suction to suck in the powder. Most of the powder will be sucked into the dust collection tank for temporary storage, thereby reducing the cleaning intensity of subsequent workers.

[0016] Through the cooperation of the vertical plate, support plate, powder cleaning component and stabilizing component, since the surface of the workpiece to be cleaned is mostly irregular, when the clamping plate moves to the workpiece surface to clamp, multiple abutments will move into multiple holes by different distances, so that the anti-slip heads on multiple abutments that are close to the workpiece surface are in contact with the workpiece surface. At this time, turning the knob clockwise will press the arc block against the outer wall of the abutment, which can further improve the stability of the clamping plate after clamping and fixing the workpiece, and facilitate the smooth progress of subsequent powder cleaning operations. Attached Figure Description

[0017] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 for Figure 3 Side sectional view of the middle panel;

[0022] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0023] Figure 6 for Figure 1 Enlarged view of point D in the middle;

[0024] Figure 7 for Figure 1 A schematic diagram of a structure on the front side of the central vertical plate where an isolation frame can be installed.

[0025] In the diagram: 1. Vertical plate, 2. Support plate, 3. Cylinder, 4. Support plate, 5. Flexible bracket, 6. Support base, 7. First gear, 8. Second gear, 9. Rotating rod, 10. Servo motor, 11. Frame, 12. Vibration motor, 13. Support block, 14. Electric push rod, 15. Clamping plate, 16. Isolation frame, 17. Observation window, 18. Through port, 19. Elastic cloth cover, 20. Insert rod, 21. Flexible strip, 22. Slot, 23. Magnetic 24. Suction plate, 25. Hollow groove plate, 26. Through groove, 27. Filter plate, 28. Vertical pipe, 29. Dust collection tank, 30. Exhaust fan, 31. Air supply pipe, 32. Insertion hole, 33. Compression spring, 34. Support rod, 35. Anti-slip head, 36. Groove, 37. Slat, 38. Connecting rod, 39. Protruding rod, 40. Arc block, 41. Lead screw, 42. Knob, 43. Protective shell, 44. Base plate, 45. Casters, 46. Cable guide tube. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-7 The technical solution provided by this utility model is an automatic powder cleaning device for 3D printing, comprising: a vertical plate 1, a support plate 2 on the front side of the vertical plate 1, the support plate 2 being connected to the vertical plate 1 via a powder cleaning assembly, the powder cleaning assembly comprising: a cylinder 3, the cylinder 3 being fixedly connected to the bottom end of the support plate 2, support plates 4 being rotatably connected to both the left and right sides of the outer wall of the cylinder 3, a flexible bracket 5 being fixedly connected to the bottom end of the support plate 4, the flexible bracket 5 being connected to the vertical plate 1 via a support base 6, and a first... Gear 7, a second gear 8 is meshed above the first gear 7, a rotating rod 9 is fixed to the inner wall of the second gear 8, a servo motor 10 is fixed to the left end of the rotating rod 9, the outer shell of the servo motor 10 is fixedly connected to the support plate 4 through the frame 11, a vibration motor 12 is installed on the right surface of the right support plate 4, a pair of support blocks 13 are fixed to the upper surface of the support plate 2, an electric push rod 14 is fixedly installed on the inner wall of the support block 13, and a clamping plate 15 is fixed to the end of the telescopic shaft of the electric push rod 14.

[0028] In the specific implementation process, it is worth noting that the vertical plate 1, as the basic support structure of the entire device, is made of high-strength metal materials, such as stainless steel, to ensure that it can withstand various forces without deformation during the powder cleaning operation. The cylinder 3 in the powder cleaning assembly is a key component that drives the rotation of the support plate 2 and the workpiece. The cylinder is made of wear-resistant alloy material with a certain degree of rigidity. The support plate 4 and the cylinder 3 are rotatably connected by a dustproof bearing to reduce rotational friction and improve transmission efficiency. The combined design of the flexible support 5 and the support seat 6 can not only ensure the stable connection between the support plate 4 and the vertical plate 1, but also provide the conditions required for subsequent vibration. The flexible support 5 in this application is a spring damper, which is a device that absorbs and buffers vibration energy through the elastic force of the spring. Its core function is to suppress the rebound oscillation after the spring absorbs the shock and external impact, and convert kinetic energy into heat energy or other energy. He transforms energy to reduce vibration transmission. The spring damper absorbs vibration energy through the elastic deformation of the spring, reducing the impact of equipment vibration on the supporting structure. For example, in industrial screening equipment, the spring damper can reduce the mechanical vibration amplitude of the vibrating screen during operation and protect the equipment from fatigue damage. The servo motor 10, as a power source, has the characteristics of precise speed control and flexible forward and reverse rotation, which can meet the different swing requirements of the workpiece. The vibration frequency and amplitude generated by the vibrating motor 12 can be adjusted according to the workpiece material and powder adhesion to achieve the best powder cleaning effect. The support block 13 is used to fix the electric push rod 14. Its position and strength design should be reasonable to ensure that the electric push rod 14 can work stably. The extension stroke and thrust of the electric push rod 14 need to be selected according to the workpiece size and clamping requirements to ensure that the clamping plate 15 can reliably clamp and release the workpiece.

[0029] Furthermore, a protective assembly is provided on the outer side of the cylinder 3. The protective assembly includes: a flexible strip 21, which is located on the outer side of the cylinder 3 and is fixedly connected to the vertical plate 1. The front surface of the flexible strip 21 has multiple slots 22. The inner end face of the slot 22 is fixedly connected to a magnetic piece 23. The slot 22 can be inserted into the rod 20. One end of the rod 20 is fixedly connected to an isolation frame 16. An observation window 17 is embedded and fixedly connected to the front surface of the isolation frame 16. A pair of openings 18 are provided on the surface of the observation window 17. An elastic cloth cover 19 is provided on the front side of the opening 18. The elastic cloth cover 19 is fixedly connected to the observation window 17. Two threading tubes 45 are fixedly connected to the side wall of the isolation frame 16. The threading tubes 45 penetrate a part of the isolation frame 16.

[0030] In the specific implementation process, it is worth noting that the flexible strip 21, as the basic fixing component of the protective assembly, must be made of a material with certain flexibility and strength, such as rubber, so that it can be firmly connected to the vertical plate 1 and can deform appropriately without being damaged when subjected to a certain external force. The size and shape of the slot 22 must be precisely designed to ensure that the insertion rod 20 can be smoothly inserted and tightly fitted. The magnetic strength of the magnetic plate 23 must be moderate to ensure a reliable connection between the isolation frame 16 and the flexible strip 21, and to facilitate disassembly by the operator. The slot 22 passes through a portion of the flexible strip 21 and the vertical plate 1. The isolation frame 16 is made of lightweight plastic with a certain strength. For easy installation and disassembly by operators, the observation window 17 is made of transparent hard plastic, providing conditions for operators to observe. Its surface is treated to prevent scratches and extend its service life. The opening 18 is designed as an operating space for cleaning workpieces with tools such as air guns. Its size and position need to be determined according to actual operating needs. The elastic cloth cover 19 is made of a material with good elasticity and sealing performance, which can not only make it easy for operators to put their hands in, but also effectively prevent dust from leaking out. The cable guide tube 45 is made of rubber material, which can protect the power cord and air supply tube 30 from wear. At the same time, its inner diameter should be reasonably designed according to the size of the cables and pipes to be passed through.

[0031] Furthermore, a cleaning assembly is provided below the cylinder 3. The cleaning assembly includes a cavity groove plate 24, which is located below the cylinder 3 and is fixedly connected to the vertical plate 1. A through groove 25 is provided on the upper surface of the cavity groove plate 24. A filter plate 26 is installed above the through groove 25 and is connected to the cavity groove plate 24 by bolts. A vertical pipe 27 is fixedly connected to the lower surface of the cavity groove plate 24. A dust collection tank 28 is fixedly connected to the bottom end of the vertical pipe 27. An exhaust fan 29 is fixedly connected to the air outlet of the dust collection tank 28, and an air supply pipe 30 is fixedly connected to the air outlet of the exhaust fan 29.

[0032] In the specific implementation process, it is worth noting that the shape and size design of the cavity groove plate 24 should be reasonable so as to fully receive the powder falling from the workpiece, and its internal space should be large enough to avoid excessive powder accumulation that would affect the cleaning effect. The location and size of the through slot 25 must be precisely designed according to the dimensions of the filter plate 26 to ensure that the filter plate 26 can be installed stably and effectively filter powder. The material of the filter plate 26 must have good filtration performance, which can block the powder from passing through while ensuring air circulation. Its aperture size needs to be selected according to the size of the powder particles to prevent the passage of larger external objects and blockage of the vertical pipe 27. The vertical pipe 27 is connected to the air inlet of the cavity slot plate 24 and the dust collection tank 28. The volume of the dust collection tank 28 should be reasonably designed according to the amount of powder generated in the actual powder cleaning operation. Its sealing performance should be good to prevent powder leakage. The end of the dust collection tank 28 away from the exhaust fan 29 is a detachable structure to facilitate cleaning and powder removal after long-term use. The exhaust volume and air pressure of the exhaust fan 29 should be sufficient to meet the needs of sucking the powder into the dust collection tank 28. Its operating noise should be controlled within a reasonable range. The air supply pipe 30 is a metal flexible hose and is long enough to guide the air discharged by the exhaust fan 29 to a suitable position.

[0033] Furthermore, the end face of the clamping plate 15 away from the electric push rod 14 is provided with a stabilizing component. The stabilizing component includes: multiple insertion holes 31, which are evenly distributed on the end face of the clamping plate 15 away from the electric push rod 14. A compression spring 32 is fixedly connected to the inner end face of the insertion hole 31. A stop rod 33 is fixedly connected to the end of the compression spring 32 away from the inner end face of the insertion hole 31. An anti-slip head 34 is fixedly connected to the end of the stop rod 33 away from the compression spring 32.

[0034] In the specific implementation process, it is worth noting that the number of multiple insertion holes 31 and multiple abutment rods 33 can fully adapt to workpieces of different shapes. The outer wall of the abutment rod 33 is fitted with the inner wall of the insertion hole 31 with a clearance. The elastic coefficient of the compression spring 32 should be moderate, so that the abutment rod 33 can move flexibly according to the undulations of the workpiece surface, and also ensure that there is enough elasticity to keep the anti-slip head 34 tightly pressed against the workpiece surface. The material of the abutment rod 33 should have a certain strength and wear resistance so that it will not be damaged during repeated movement. The material of the anti-slip head 34 should be a material with a high coefficient of friction, such as rubber, to enhance the friction with the workpiece surface and improve the clamping stability.

[0035] Furthermore, a groove 35 is formed inside the clamping plate 15, and multiple strips 36 are provided inside the groove 35. The multiple strips 36 are fixedly connected to each other by a connecting rod 37. Multiple protruding rods 38 are fixedly connected to the end face of the strips 36 that is close to the insertion hole 31. An arc-shaped block 39 is fixedly connected to the end of the protruding rod 38 that is away from the strip 36. A lead screw 40 is threadedly connected to the front surface of the clamping plate 15. The lead screw 40 is rotatably connected to the strip 36 through a ball bearing. A knob 41 is fixedly connected to the end of the lead screw 40 that is away from the strip 36. A dust cover is installed between the knob 41 and the clamping plate 15.

[0036] In the specific implementation process, it is worth noting that the size and shape of the groove 35 should be reasonably designed to provide sufficient installation space for components such as the strips 36. The number and spacing of the strips 36 should be determined according to actual needs to ensure that they can uniformly exert a clamping effect on the abutment rod 33. The length and diameter of the protruding rod 38 should be appropriately designed to accurately transmit the movement of the strips 36 to the arc block 39. The curvature of the arc block 39 should match the outer wall of the abutment rod 33 to achieve the best clamping effect. The surface of the knob 41 is treated with anti-slip material. The dust cover consists of a folded rubber tube and two rigid rings. The two rings are fixed to both ends of the folded rubber tube. One ring is rotatably connected to the knob 41 through a sealed bearing, and the other ring is fixedly connected to the clamping plate, which can effectively prevent powder from contacting the lead screw 40.

[0037] Furthermore, the outer sides of the vibration motor 12 and the first gear 7 are both fitted with protective shells 42, which are fixedly connected to the support plate 4. The bottom end of the vertical plate 1 is fixedly connected to the base plate 43, and the four corners of the lower surface of the base plate 43 are fixedly connected to casters 44.

[0038] In the specific implementation process, it is worth noting that the device should be able to protect the vibration motor 12, the first gear 7, the second gear 8, and the servo motor 10 from external impacts and powder corrosion. At the same time, it should have good heat dissipation performance. If necessary, dustproof heat dissipation channels should be set on its end face to avoid the internal components from reducing their service life due to overheating. The material of the base plate 43 should be sturdy enough to bear the weight of the entire device. Its size should be reasonably designed according to the overall structure of the device. The caster wheel 44 should be a caster wheel with a self-locking braking function. Its load-bearing capacity should be large enough to meet the movement needs of the device on different ground surfaces. Its self-locking braking device should be sensitive and reliable to ensure that the device can be stably parked during the powder cleaning operation.

[0039] Working principle:

[0040] Preliminary powder cleaning, primarily driven by the powder cleaning component:

[0041] At the start of the powder cleaning operation, using the basic support structure constructed by the vertical plate and the pallet, the operator uses a crane to smoothly place the workpiece to be cleaned onto the pallet 2. Then, the electric push rod 14 is activated, which pushes the two clamping plates 15 together until the workpiece is firmly clamped and fixed, ensuring its stable position in subsequent operations. Next, the servo motor 10 starts running, driving the rotating rod 9 to rotate. The rotating rod 9, in turn, causes the second gear 8 to rotate. The second gear 8 meshes with the first gear 7. Through this transmission method, the first gear 7 begins to rotate, thereby driving the cylinder 3 to rotate. Simultaneously, the pallet 2, the two clamping plates 15, and the clamped workpiece rotate 180° together. At this time, the output shaft of the servo motor 10 continuously advances... The forward and reverse rotation operation causes the workpiece to swing back and forth intermittently. During the swing, most of the powder adhering to the workpiece surface is detached and falls off under the combined action of gravity and centrifugal force. At the same time, the vibration motor 12 is started. Since the support plate 4 is firmly connected to the vertical plate 1 through the soft bracket 5 and the support seat 6, the vibration generated by the vibration motor 12 will be transmitted to the support plate 4, the cylinder 3, the support plate 2 and the workpiece in sequence, causing them to vibrate together. This vibration can further loosen and fall off the residual powder on the workpiece and in the internal gaps and holes, effectively improving the powder removal effect. Through this series of operations, not only is the physical exertion of the operator reduced, but the quality and efficiency of the powder removal operation on the workpiece are also significantly improved.

[0042] Protective components ensure a safe working environment and facilitate final cleanup.

[0043] Before the dust removal operation, after the workpiece is clamped and fixed by the clamping plate 15, the operator precisely inserts multiple insertion rods 20 into the slots 22. At this time, the magnetic suction plate 23 and the insertion rods 20 are attracted to each other magnetically, so that the isolation frame 16 and the flexible strip 21 are tightly pressed together, forming a relatively closed working space. The wire-threading flexible tube 45 set on the side wall of the isolation frame 16 allows the power cord and air supply pipe 30 to pass through smoothly, providing the necessary wiring and gas supply for the normal operation of the device. In the subsequent dust removal operation, this closed space can effectively prevent dust from spreading to the outside, greatly improving the dust removal process. The working environment around the work area reduces potential health hazards to operators. In addition, operators can insert their hands into the isolation frame 16 through the elastic cloth sleeve 19 and use an air gun to perform a final, meticulous cleaning of the workpiece surface. After the previous powder removal steps, the powder on the workpiece has been basically completely removed. Finally, remove the isolation frame 16, stop powering the vibration motor 12, drive the servo motor 10 to reset the support plate 2 to its initial position, and then drive the electric push rod 14 to move the clamping plate 15 to both sides away from the workpiece. The operator can then easily remove the workpiece that has completed the powder removal operation.

[0044] Powder collection implemented by the cleaning component:

[0045] During the dust removal process, most of the dust that falls off the workpiece will naturally fall onto the surface of the cavity plate 24. At this time, the operator starts the exhaust fan 29. After the exhaust fan 29 starts working, it will create a negative pressure inside the cavity plate 24. Under the action of negative pressure, the filter plate 26 above the outlet 18 generates a strong suction force, which quickly sucks in the dust from the surrounding air. Most of the dust will be successfully sucked into the dust collection tank 28 for temporary storage. Only a very small amount of fine dust may adhere to the surface of the filter plate 26. In this way, the dust generated during the dust removal process is effectively collected, reducing the intensity of subsequent cleaning work for the staff and maintaining a clean working environment.

[0046] Enhanced clamping stability thanks to stabilization components:

[0047] Considering that the surface of the workpiece to be cleaned is mostly irregular, when the clamping plate 15 moves to the workpiece surface for clamping, multiple abutments 33 will move into multiple insertion holes 31 at different distances according to the undulations of the workpiece surface. During this process, the anti-slip heads 34 on the multiple abutments 33 that are close to the workpiece surface will make close contact with the workpiece surface and press against it, initially ensuring the clamping stability of the clamping plate 15 on the workpiece. At this time, the operator turns the knob 41 clockwise, and the knob 41 drives the arc block 39 to rotate, so that the arc block 39 presses against the outer wall of the abutment 33, which can further improve the stability of the clamping plate 15 after clamping and fixing the workpiece, and provide a reliable guarantee for the smooth operation of subsequent cleaning.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic powder cleaning device for 3D printing, comprising: A vertical plate (1) is characterized in that: a support plate (2) is provided on the front side of the vertical plate (1), the support plate (2) is connected to the vertical plate (1) through a powder cleaning assembly, the powder cleaning assembly includes: a cylinder (3), the cylinder (3) is fixedly connected to the bottom end of the support plate (2), and support plates (4) are rotatably connected to the left and right sides of the outer wall of the cylinder (3), a flexible bracket (5) is fixedly connected to the bottom end of the support plate (4), the flexible bracket (5) is connected to the vertical plate (1) through a support seat (6), and a first gear (7) is fixedly sleeved on the left end of the outer wall of the cylinder (3). A second gear (8) is meshed above the support plate (4). A rotating rod (9) is fixed to the inner wall of the second gear (8). A servo motor (10) is fixed to the left end of the rotating rod (9). The outer shell of the servo motor (10) is fixedly connected to the support plate (4) through the frame (11). A vibration motor (12) is installed on the right surface of the support plate (4). A pair of support blocks (13) are fixed to the upper surface of the support plate (2). An electric push rod (14) is fixedly installed on the inner wall of the support block (13). A clamp (15) is fixed to the end of the telescopic shaft of the electric push rod (14).

2. The 3D printing automatic powder cleaning device according to claim 1, characterized in that: The outer side of the cylinder (3) is provided with a protective component, which includes: a soft strip (21), the soft strip (21) is located on the outer side of the cylinder (3), the soft strip (21) is fixedly connected to the vertical plate (1), the front surface of the soft strip (21) is provided with multiple slots (22), the inner end face of the slot (22) is fixedly connected with a magnetic absorbing piece (23), the slot (22) can be inserted by a plug rod (20), one end of the plug rod (20) is fixedly connected with an isolation frame (16), the front surface of the isolation frame (16) is embedded with an observation window (17), the surface of the observation window (17) is provided with a pair of openings (18), the front side of the opening (18) is provided with an elastic cloth cover (19), the elastic cloth cover (19) is fixedly connected to the observation window (17), and the side wall of the isolation frame (16) is fixedly connected with two threading soft tubes (45), the threading soft tubes (45) penetrate a part of the isolation frame (16).

3. The automatic powder cleaning device for 3D printing according to claim 1, characterized in that: A cleaning assembly is provided below the cylinder (3). The cleaning assembly includes a cavity groove plate (24), which is located below the cylinder (3). The cavity groove plate (24) is fixedly connected to the vertical plate (1). A through groove (25) is provided on the upper surface of the cavity groove plate (24). A filter plate (26) is installed above the through groove (25). The filter plate (26) is connected to the cavity groove plate (24) by bolts. A vertical pipe (27) is fixedly connected to the lower surface of the cavity groove plate (24). A dust collection tank (28) is fixedly connected to the bottom end of the vertical pipe (27). An exhaust fan (29) is fixedly connected to the air outlet of the dust collection tank (28). An air supply pipe (30) is fixedly connected to the air outlet of the exhaust fan (29).

4. The 3D printing automatic powder cleaning device according to claim 1, characterized in that: The end face of the clamping plate (15) away from the electric push rod (14) is provided with a stabilizing component. The stabilizing component includes: multiple insertion holes (31), the multiple insertion holes (31) are evenly opened on the end face of the clamping plate (15) away from the electric push rod (14), a compression spring (32) is fixedly connected to the inner end face of the insertion hole (31), a stop rod (33) is fixedly connected to the end of the compression spring (32) away from the inner end face of the insertion hole (31), and an anti-slip head (34) is fixedly connected to the end of the stop rod (33) away from the compression spring (32).

5. The 3D printing automatic powder cleaning device according to claim 4, characterized in that: The clamping plate (15) has a groove (35) inside, and multiple strips (36) are provided inside the groove (35). The multiple strips (36) are fixedly connected to each other by a connecting rod (37). Multiple protruding rods (38) are fixedly connected to the end face of the strips (36) that are close to the insertion hole (31). An arc-shaped block (39) is fixedly connected to the end of the protruding rod (38) away from the strip (36). A lead screw (40) is threaded to the front surface of the clamping plate (15). The lead screw (40) is rotatably connected to the strip (36) through a ball bearing. A knob (41) is fixedly connected to the end of the lead screw (40) away from the strip (36). A dust cover is installed between the knob (41) and the clamping plate (15).

6. The 3D printing automatic powder cleaning device according to claim 1, characterized in that: The outer sides of the vibration motor (12) and the first gear (7) are fitted with protective shells (42), which are fixedly connected to the support plate (4). The bottom end of the vertical plate (1) is fixedly connected to the bottom plate (43), and the four corners of the lower surface of the bottom plate (43) are fixedly connected to casters (44).

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