Metal 3D printing equipment and using method thereof
By designing an automatic filtering and cleaning system in metal 3D printing equipment, the problem of occlusion of smoke and dust on the laser beam is solved, ensuring printing accuracy and achieving effective dust treatment and recycling, and solving environmental pollution problems.
Patent Information
- Application Number
- CN202411710291.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-01-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During metal 3D printing, smoke and dust will block the laser beam, affecting its precise illumination, and the prior art is difficult to effectively filter and treat these pollutants, resulting in environmental pollution.
A metal 3D printing device is designed, which includes filtering components, which uses a fan to suck smoke and dust, and filters through the filter cartridge. The filter cartridge is automatically cleaned by rotating and motor-assisted when blocked, ensuring continuous filtering and dust discharge, preventing the environment. pollute.
Effectively prevent smoke and dust from blocking the laser beam, ensuring printing accuracy, and at the same time, through the automatic cleaning mechanism, no manual intervention is required, resource saving, and effective dust filtration and recycling are achieved.
Smart Images
Figure CN119304212A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of 3D printing equipment, and in particular to a metal 3D printing equipment and a method for using the same. Background Art
[0002] Metal 3D printing equipment is an advanced manufacturing technology that uses metal powder or wire as raw materials and gradually prints the designed three-dimensional model through processes such as layer-by-layer stacking or laser melting.
[0003] During the metal printing process, extra metal dust will be generated. When the laser beam irradiates the metal powder, the powder surface will melt and release gas, which will form smoke. The dust and smoke will block the laser beam and the working area, affecting the precise irradiation of the laser. To solve the above problems, the following solutions are proposed. Summary of the invention
[0004] In order to solve the above technical problems, the present invention provides a metal 3D printing device, including a filter assembly, the filter assembly includes a housing, a fan is fixedly connected to the right side of the housing, a left sealing plate is fixedly connected to the front side of the housing, and further includes:
[0005] The drum assembly includes a pressure plate arranged inside the shell, a spring is fixedly connected to the left side of the pressure plate, and an air guide tube is arranged inside the shell;
[0006] The discharge assembly comprises a fixed sleeve rod 2 fixedly connected to the front side of the shell, the inner wall of the fixed sleeve rod 2 is slidably connected with a fixed rod, and the right side of the fixed sleeve rod 2 is fixedly connected with an air guide pipe 2.
[0007] Preferably, a right sealing plate is fixedly connected to the back of the outer shell, a discharge port is opened at the bottom of the inner wall of the outer shell, an inner sealing plate is fixedly connected to the back of the left sealing plate, the back of the inner sealing plate is fixedly connected to the front of the right sealing plate, an upper sealing plate is fixedly connected to the top of the inner wall of the outer shell, a lower sealing plate is fixedly connected to the bottom of the inner wall of the outer shell, and a filter cartridge is rotatably connected to the outer surface of the inner sealing plate. By setting the filter cartridge, the air sucked out by the fan can be filtered to prevent the air from being directly discharged and polluting the environment.
[0008] Preferably, the outer surface of the filter cartridge is rotatably connected to the outer surfaces of the upper sealing plate and the lower sealing plate respectively, the inner wall of the filter cartridge is fixedly connected to a fixing frame, the inner wall of the fixing frame is rotatably connected to the outer surface of the inner sealing plate, the outer surface of the fixing frame is fixedly connected to a fixing ring, the inner wall of the fixing ring is rotatably connected to rotating teeth, the inner wall of the rotating teeth is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to a coil spring, the coil spring is fixedly connected to the inner wall of the fixing ring at an end away from the rotating shaft, and by arranging the coil spring, the rotating teeth can be reset.
[0009] Preferably, the outer surface of the pressure plate is slidingly connected to the inner wall of the upper sealing plate, the left side of a spring is fixedly connected to the left side of the inner wall of the upper sealing plate, the left side of the upper sealing plate is fixedly connected to an end of an air guide tube close to the pressure plate, the air guide tube is fixedly connected to a fixed sleeve rod at the end away from the upper sealing plate, the inner wall of the fixed sleeve rod is slidingly connected to a rack, the bottom of the rack is meshingly connected to a gear ring, the inner wall of the gear ring is rotatably connected to the outer surface of the fixing ring, the inner wall of the gear ring is fixedly connected to internal teeth, and the pressure plate can be reset by arranging a spring.
[0010] Preferably, the left side of the fixed rod is fixedly connected to the right side of the rack one, the air guide tube two is fixedly connected to the fixed sleeve rod three at the end away from the fixed sleeve rod two, the outer surface of the fixed sleeve rod three is fixedly connected to the inner wall of the inner sealing plate, the inner wall of the fixed sleeve rod three is slidably connected with a joint one, the outer surface of the joint one is sleeved with a spring two, the back end of the spring two is fixedly connected to the outer surface of the joint one, the front end of the spring two is fixedly connected to the front of the inner wall of the right sealing plate, and the left side of the inner sealing plate is fixedly connected to a motor, and by setting the spring two, the joints can be reset together.
[0011] Preferably, a connector 2 is fixedly connected to the outer surface of the motor, a rotating shaft is fixedly connected to the output end of the motor, a fixed plate is fixedly connected to the back of the rotating shaft, a plurality of friction blocks are slidably connected to the inner wall of the fixed plate, a plurality of friction blocks are fixedly connected to spring 3 on the side close to each other, spring 3 is fixedly connected to the inner wall of the fixed plate at the end away from the friction block, and a gear ring 2 is rotatably connected to the outer surface of the fixed plate, and by providing the friction block, the gear ring 2 can be driven to rotate by the friction force between the friction block and the gear ring 2, and when the gear ring 2 cannot rotate, the friction force can be overcome to cause idling.
[0012] Preferably, the inner wall of the gear ring 2 is rotatably connected to the outer surface of the rotating shaft, the gear ring 2 is meshingly connected with the rack 2 on the right side, two sliding sealing plates are fixedly connected to the front side of the rack 2, and springs 4 are fixedly connected to the tops of the two sliding sealing plates. The outer surface of the sliding sealing plate close to the motor is slidingly connected to the inner wall of the inner sealing plate, and the sliding sealing plate away from the motor is slidingly connected to the inner wall of the lower sealing plate. The top of the spring 4 close to the motor is fixedly connected to the inner wall of the inner sealing plate, and the spring 4 away from the motor is fixedly connected to the inner wall of the lower sealing plate. By setting spring 4, the sliding sealing plate can be reset.
[0013] A method for using a metal 3D printing device comprises the following steps:
[0014] S1: When using this device, first install it at the designated location of the printer, then start the fan while the printer is working to suck out the smoke and dust generated inside the printer, and then filter and discharge them;
[0015] S2: After the device has been used for a period of time, the filter cartridge is gradually blocked, and the pressure plate will drive the rack to move to the right, thereby driving the filter cartridge to rotate, so as to scrape off the dust on the surface of the filter cartridge and rotate the unblocked part to the right, so that the device can filter normally;
[0016] S3: After the device has been used for a long time, most of the filter holes of the filter cartridge may be blocked. The motor will be started and drive the sliding sealing plate to move upward. The air will flow out from the inside of the filter cartridge, blowing out the blocked dust and finally driving the dust to be discharged from the exhaust port.
[0017] The present invention has the following beneficial effects:
[0018] (1) The present invention starts the fan, which will suck the smoke and dust generated inside the printer when it is working into the outer shell. Due to the shielding of the upper sealing plate and the lower sealing plate, the air carrying dust sucked into the outer shell can only enter the interior of the outer shell through the filter holes of the filter cartridge, and the dust carried in the air will be filtered by the filter cartridge and remain on the surface of the filter cartridge, or fall on the bottom of the inner wall of the outer shell due to gravity. The air entering the filter cartridge will flow to the front or back due to the blocking effect of the inner sealing plate. The air flowing to the front will be discharged through the left sealing plate, and the air flowing to the back will be discharged through the right sealing plate. This design can promptly suck out the dust and smoke generated by the printer when it is working from the inside of the printer to prevent it from blocking the laser beam and the working area and affecting the precise irradiation of the laser. At the same time, the air sucked out from the inside of the printer can be filtered before being discharged to prevent the dust from being directly discharged and polluting the surrounding environment.
[0019] (2) After the device of the present invention has been used for a period of time, the filtering working surface of the filter cartridge may gradually be covered and blocked by the filtered dust. As the filter cartridge is gradually blocked, the air sucked by the fan cannot pass through the filter cartridge quickly, thereby gradually increasing the pressure on the right side of the filter cartridge. The increased pressure will push the pressure plate to the left and compress the spring 1. While moving, the pressure plate will also compress the air inside the upper sealing plate and push it into the air duct 1. The air duct 1 will pass the air into the fixed sleeve rod 1. The air passed into the fixed sleeve rod 1 will push the rack 1 to the right and drive the gear ring 1 to rotate. The gear ring 1 will drive the fixed ring to rotate through the internal teeth and the rotating teeth. The fixed ring will drive the filter cartridge to rotate through the fixed frame. When the filter cartridge rotates, the unblocked part will rotate to the right, so that the device can perform normal filtering. While the filter cartridge rotates, the dust attached to its outer surface will be scraped off by the lower sealing plate to ensure continuous use of the filter cartridge. After the filter cartridge can filter normally, the pressure on the right side of the filter cartridge will return to normal, and the rack 1 and the pressure plate will reset under the action of the spring 1. In the process of the rack 1 resetting and driving the gear ring 1, after the inner teeth contact the rotating teeth, as the gear ring 1 continues to rotate, the rotating teeth will tighten the coil spring to rotate, so that the gear ring 1 will not drive the filter cartridge to rotate through the fixing frame and the fixing ring during the rotation. This design can rotate the filter cartridge after the working surface of the filter cartridge is blocked, so that the unused surface of the filter cartridge turns to the right, so that the filter cartridge can resume normal filtration. At the same time, the dust attached to the surface of the filter cartridge can be scraped off, so that the device can work for a long time without human intervention.
[0020] (3) In the present invention, during the use of the device, the filtered dust may be stuck in the filter holes of the filter cartridge. After the device is used for a long time, most of the filter holes of the filter cartridge may be blocked. The dust blocked in the filter holes cannot be scraped off by simply scraping the outer surface of the filter cartridge. Therefore, when the filter holes are blocked, the pressure plate will be pushed, thereby causing the rack 1 to move. Since most of the filter holes of the filter cartridge are blocked, rotating the filter cartridge can no longer restore the filtering work to normal, so the rack 1 cannot be reset. As the filter hole blockage becomes more and more serious, the rack 1 will continue to move to the right. When the rack 1 moves to the right, it will drive the fixing rod to move together, and the fixing rod will move to the right. When the rod moves, it will compress the air in the fixed sleeve rod 2 and push the air into the air duct 2. The air duct 2 will pass the air into the fixed sleeve rod 3. The air passed into the fixed sleeve rod 3 will push the joint 1 toward the front. When the fixed rod moves to a certain distance, the joint 1 will contact the joint 2. At this time, a passage will be formed between the motor and the power supply, and the motor will be started. This design can detect the blockage of the filter cartridge by the distance moved by the rack 1, and can determine whether the motor needs to be started according to the blockage of the filter cartridge. No manual intervention is required, and the continuity of production or operation will not be affected, saving human resources and costs.
[0021] (4) After the motor of the present invention is started, it will drive the rotating shaft to rotate, and the rotating shaft will drive the fixed plate to rotate. During the rotation of the fixed plate, due to the action of centrifugal force, the friction block will stretch the spring three and be thrown outward. At this time, the outer surface of the friction block will contact the inner wall of the gear ring two, and then the friction between the friction block and the gear ring two will drive the gear ring two to rotate. During the rotation of the gear ring two, it will drive the rack two to move upward. During the upward movement of the rack two, it will drive the two sliding sealing plates to move upward together and compress the spring four. After the two sliding sealing plates move upward, the through holes opened in the inner sealing plate and the lower sealing plate will be exposed respectively. At this time, the air sucked in by the fan will pass through the lower sealing plate to reach the left side of the filter cartridge. At the same time, it will also scrape the lower sealing plate and the dust that falls on the bottom of the inner wall of the outer shell, and drive and pass through the lower sealing plate. The air that passes through the filter cartridge will pass through the inner sealing plate and enter the left side of the inner sealing plate. As the air continues to pass through the inner sealing plate, the air will flow from the inside of the filter cartridge to the outside of the filter cartridge, and then blow out the dust blocked in the filter holes of the filter cartridge. In the above process, the air passing through the inner sealing plate and the lower sealing plate will drive the dust to be discharged from the exhaust port. The staff can recycle the dust discharged from the exhaust port. This design can blow out the dust blocked inside the filter cartridge by allowing the air to flow from the inside to the outside of the filter cartridge, and can discharge the dust-containing air from the exhaust port separately, which is convenient for the staff to recycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0023] Figure 1 It is a schematic diagram of the internal cross-sectional structure of the housing of the present invention;
[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;
[0025] Figure 3 It is a schematic diagram of the overall structure of the housing of the present invention;
[0026] Figure 4 This is a schematic diagram of the overall structure of the inner sealing plate of the present invention;
[0027] Figure 5 It is a schematic diagram of the overall structure of the filter cartridge of the present invention;
[0028] Figure 6 For the present invention Figure 5 A is a schematic diagram of the enlarged structure of the middle part;
[0029] Figure 7This is a schematic diagram of the overall structure of the second air guide tube of the present invention;
[0030] Figure 8 This is a schematic diagram of the overall structure of a connector of the present invention;
[0031] Fig. 9 It is a schematic diagram of the overall structure of the motor of the present invention;
[0032] Fig.10 For the present invention Fig. 9 A schematic diagram of the enlarged structure of B;
[0033] Fig.11 It is a schematic diagram of the working process of the present invention.
[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0035] In the figure: 1. filter assembly; 101. housing; 102. fan; 103. left sealing plate; 104. right sealing plate; 105. discharge port; 106. inner sealing plate; 107. upper sealing plate; 108. lower sealing plate; 109. filter cartridge; 110. fixing frame; 111. fixing ring; 112. rotating tooth; 113. coil spring; 2. drum assembly; 201. pressing plate; 202. spring 1; 203. air guide tube 1; 204. fixing sleeve rod 1; 205 , rack one; 206, gear ring one; 207, inner teeth; 3, discharge assembly; 301, fixed rod; 302, fixed sleeve rod two; 303, air guide tube two; 304, fixed sleeve rod three; 305, joint one; 306, spring two; 307, joint two; 308, motor; 309, rotating shaft; 311, fixed plate; 312, friction block; 313, spring three; 314, gear ring two; 315, rack two; 316, sliding sealing plate; 317, spring four. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0037] For example, see Figure 1 - Figure 6 The present invention is a metal 3D printing device, comprising a filter assembly 1, the filter assembly 1 comprising a housing 101, a fan 102 is fixedly connected to the right side of the housing 101, a left sealing plate 103 is fixedly connected to the front of the housing 101, and further comprising:
[0038] The drum assembly 2 includes a pressure plate 201 disposed inside the housing 101, a spring 202 is fixedly connected to the left side of the pressure plate 201, and an air guide tube 203 is disposed inside the housing 101;
[0039] The discharge assembly 3 includes a second fixed sleeve rod 302 fixedly connected to the front side of the housing 101, the inner wall of the second fixed sleeve rod 302 is slidably connected with the fixed rod 301, and the right side of the second fixed sleeve rod 302 is fixedly connected with the second air guide pipe 303.
[0040] A right sealing plate 104 is fixedly connected to the back of the housing 101, a discharge port 105 is provided at the bottom of the inner wall of the housing 101, an inner sealing plate 106 is fixedly connected to the back of the left sealing plate 103, the back of the inner sealing plate 106 is fixedly connected to the front of the right sealing plate 104, an upper sealing plate 107 is fixedly connected to the top of the inner wall of the housing 101, a lower sealing plate 108 is fixedly connected to the bottom of the inner wall of the housing 101, a filter cartridge 109 is rotatably connected to the outer surface of the inner sealing plate 106, and the fan 102 is started, and the fan 102 will suck the smoke and dust generated inside the printer when it is working into the housing 101. Due to the shielding of the upper sealing plate 107 and the lower sealing plate 108, the air carrying dust sucked into the housing 101 can only pass through the filter cartridge 10 9, and the dust carried in the air will be filtered by the filter cartridge 109 and remain on the surface of the filter cartridge 109, or fall on the bottom of the inner wall of the shell 101 due to gravity. The air entering the filter cartridge 109 will flow to the front or back due to the blocking effect of the inner sealing plate 106. The air flowing to the front will be discharged through the left sealing plate 103, and the air flowing to the back will be discharged through the right sealing plate 104. This design can timely suck out the dust and smoke generated by the printer when it is working from the inside of the printer to prevent it from blocking the laser beam and the working area and affecting the precise irradiation of the laser. At the same time, the air sucked out from the inside of the printer can be filtered before being discharged to prevent the dust from being directly discharged and polluting the surrounding environment.
[0041] The outer surface of the filter cartridge 109 is rotatably connected to the outer surfaces of the upper sealing plate 107 and the lower sealing plate 108 respectively, the inner wall of the filter cartridge 109 is fixedly connected to a fixing frame 110, the inner wall of the fixing frame 110 is rotatably connected to the outer surface of the inner sealing plate 106, the outer surface of the fixing frame 110 is fixedly connected to a fixing ring 111, the inner wall of the fixing ring 111 is rotatably connected to a rotating tooth 112, the inner wall of the rotating tooth 112 is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to a coil spring 113, and the coil spring 113 is fixedly connected to the inner wall of the fixing ring 111 at the end away from the rotating shaft. After the device has been used for a period of time, the filtering working surface of the filter cartridge 109 may gradually be covered and blocked by the filtered dust, and because the filter cartridge 109 is gradually blocked, the air sucked in by the fan 102 cannot pass through the filter cartridge 109 quickly, thereby gradually increasing the pressure on the right side of the filter cartridge 109.
[0042] For example 2, please refer to Figure 7 - Fig.11 The present invention is a metal 3D printing device. On the basis of the first embodiment, the outer surface of the pressing plate 201 is slidably connected to the inner wall of the upper sealing plate 107, the left side of the spring 102 is fixedly connected to the left side of the inner wall of the upper sealing plate 107, the left side of the upper sealing plate 107 is fixedly connected to the end of the air guide tube 103 close to the pressing plate 201, the air guide tube 103 is fixedly connected to a fixed sleeve rod 104 at the end away from the upper sealing plate 107, the inner wall of the fixed sleeve rod 104 is slidably connected to a rack 105, the bottom of the rack 105 is meshed with a gear ring 106, and the inner wall of the gear ring 106 is connected to the fixed ring 106. The outer surface of 11 is rotatably connected, and the inner wall of the gear ring 106 is fixedly connected with the inner teeth 207. The increased pressure will push the pressure plate 201 to the left and compress the spring 102. While moving, the pressure plate 201 will also compress the air inside the upper sealing plate 107 and push it into the air guide tube 103. The air guide tube 103 will pass the air into the fixed sleeve rod 104. The air passed into the fixed sleeve rod 104 will push the rack 105 to the right and drive the gear ring 106 to rotate. The gear ring 106 will drive the fixed ring 111 to rotate through the inner teeth 207 and the rotating teeth 112. The ring 111 will drive the filter cartridge 109 to rotate through the fixing frame 110. When the filter cartridge 109 rotates, the unblocked part will be rotated to the right side so that the device can filter normally. When the filter cartridge 109 rotates, the dust attached to its outer surface will be scraped off by the lower sealing plate 108 so that the filter cartridge 109 can be used continuously. After the filter cartridge 109 can filter normally, the pressure on the right side of the filter cartridge 109 will return to normal, and the rack 1 205 and the pressure plate 201 will be reset under the action of the spring 1 202. In the process of the rack 1 205 resetting and driving the gear ring 1 206, the inner teeth 207 contact the inner teeth 207. After reaching the rotating tooth 112, as the tooth ring 206 continues to rotate, the rotating tooth 112 will tighten the coil spring 113 to rotate, so that the tooth ring 206 will not drive the filter cartridge 109 to rotate through the fixed frame 110 and the fixed ring 111 during the rotation. This design can rotate the filter cartridge 109 after the working surface of the filter cartridge 109 is blocked, so that the unused surface of the filter cartridge 109 turns to the right, so that the filter cartridge 109 can resume normal filtration, and at the same time, the dust attached to the surface of the filter cartridge 109 can be scraped off, so that the device can work for a long time without human intervention.
[0043] The left side of the fixed rod 301 is fixedly connected to the right side of the rack 1 205, the air guide tube 2 303 is fixedly connected to a fixed sleeve rod 3 304 at one end away from the fixed sleeve rod 2 302, the outer surface of the fixed sleeve rod 3 304 is fixedly connected to the inner wall of the inner sealing plate 106, the inner wall of the fixed sleeve rod 304 is slidably connected to a joint 1 305, the outer surface of the joint 1 305 is sleeved with a spring 2 306, the back end of the spring 2 306 is fixedly connected to the outer surface of the joint 1 305, and the front end of the spring 2 306 is slidably connected to the inner wall of the right sealing plate 104. The front side is fixedly connected, and the left side of the inner sealing plate 106 is fixedly connected with a motor 308. During the use of the device, the filtered dust may be stuck in the filter holes of the filter cartridge 109. After the device is used for a long time, most of the filter holes of the filter cartridge 109 may be blocked. The dust blocked in the filter holes cannot be scraped off by scraping the outer surface of the filter cartridge 109. Therefore, when the filter holes are blocked, the pressure plate 201 will be pushed, thereby moving the rack 205. Since most of the filter holes of the filter cartridge 109 are blocked, the filter cartridge 109 is rotated. 9 can no longer restore the filtering work to normal, so the rack 1 205 cannot be reset. As the filter hole is blocked more and more seriously, the rack 1 205 will continue to move to the right. When the rack 1 205 moves to the right, it will drive the fixed rod 301 to move together. The fixed rod 301 will compress the air in the fixed sleeve rod 2 302 during the movement, and push the air into the air guide pipe 2 303. The air guide pipe 2 303 will pass the air into the fixed sleeve rod 3 304. The air passed into the fixed sleeve rod 304 will push the joint 1 305 to the front. When the fixed rod 301 moves to a certain distance, the joint 1 305 will contact the joint 2 307. At this time, a passage is formed between the motor 308 and the power supply, and the motor 308 will be started. This design can detect the blockage of the filter cartridge 109 through the distance moved by the rack 1 205, and can determine whether the motor needs to be started according to the blockage of the filter cartridge 109. No manual intervention is required, and the continuity of production or operation will not be affected, saving human resources and costs.
[0044] A connector 2 307 is fixedly connected to the outer surface of the motor 308, a rotating shaft 309 is fixedly connected to the output end of the motor 308, a fixed plate 311 is fixedly connected to the back of the rotating shaft 309, a plurality of friction blocks 312 are slidably connected to the inner wall of the fixed plate 311, a plurality of friction blocks 312 are fixedly connected to a spring 313 on the side close to each other, the spring 313 is fixedly connected to the inner wall of the fixed plate 311 at the end away from the friction block 312, a gear ring 2 314 is rotatably connected to the outer surface of the fixed plate 311, after the motor 308 is started, the rotating shaft 309 is driven to rotate, the rotating shaft 309 is driven to rotate the fixed plate 311, during the rotation of the fixed plate 311, due to the action of centrifugal force, the friction block 312 will stretch the spring 313 and be thrown outward, at this time, the outer surface of the friction block 312 will contact the inner wall of the gear ring 2 314, and then the friction between the friction block 312 and the gear ring 2 314 drives the gear ring 2 314 to rotate.
[0045] The inner wall of the second gear ring 314 is rotatably connected to the outer surface of the rotating shaft 309, the right side of the second gear ring 314 is meshed with the second rack 315, the front of the second rack 315 is fixedly connected with two sliding sealing plates 316, the tops of the two sliding sealing plates 316 are fixedly connected with springs 4 317, the outer surface of the sliding sealing plate 316 close to the motor 308 is slidably connected to the inner wall of the inner sealing plate 106, and the sliding sealing plate 316 away from the motor 308 is slidably connected to the inner wall of the lower sealing plate 108, and the sliding sealing plate 316 close to the motor 308 is slidably connected to the inner wall of the lower sealing plate 108. The top of the spring four 317 of 08 is fixedly connected to the inner wall of the inner sealing plate 106, and the spring four 317 away from the motor 308 is fixedly connected to the inner wall of the lower sealing plate 108. The gear ring 2 314 will drive the rack 2 315 to move upward during the rotation process. The rack 2 315 will drive the two sliding sealing plates 316 to move upward and compress the spring four 317 during the upward movement. After the two sliding sealing plates 316 move upward, they will open the inner sealing plate 106 and the lower sealing plate 108 respectively. The through hole is exposed. At this time, the air sucked by the fan 102 will pass through the lower sealing plate 108 to reach the left side of the filter cartridge 109. At the same time, it will also scrape the lower sealing plate 108 and the dust that falls on the bottom of the inner wall of the shell 101 and drive it through the lower sealing plate 108. The air that passes through the filter cartridge 109 will pass through the inner sealing plate 106 and enter the left side of the inner sealing plate 106. As the air continues to pass through the inner sealing plate 106, the air will flow from the inside of the filter cartridge 109 to the outside of the filter cartridge 109, and then blow out the dust blocked in the filter holes of the filter cartridge 109. In the above process, the air passing through the inner sealing plate 106 and the lower sealing plate 108 will drive the dust to be discharged from the exhaust port 105. The staff can recycle the dust discharged from the exhaust port 105. This design can blow out the dust blocked in the filter cartridge 109 by the air flowing from the inside of the filter cartridge 109 to the outside, and the air containing dust can be discharged from the exhaust port 105 alone, which is convenient for the staff to recycle.
[0046] The method for using the metal 3D printing device includes the following steps:
[0047] S1: When using the device, first install the device at a designated position of the printer, then start the fan 102 while the printer is working, suck out the smoke and dust generated inside the printer, and filter and discharge them;
[0048] S2: After the device has been used for a period of time, the filter cartridge 109 is gradually blocked, and the pressure plate 201 drives the rack 1 205 to move to the right, thereby driving the filter cartridge 109 to rotate, so as to scrape off the dust on the surface of the filter cartridge 109 and rotate the unblocked part to the right, so that the device can filter normally;
[0049] S3: After the device has been used for a long time, most of the filter holes of the filter cartridge 109 may be blocked, the motor 308 will be started and drive the sliding sealing plate 316 to move upward, the air will flow out from the inside of the filter cartridge 109, and then blow out the blocked dust, and finally drive the dust to be discharged from the exhaust port 105.
[0050] A specific application of this embodiment is:
[0051] When using the device, first install the device at a designated position of the printer, then start the fan 102 while the printer is working, and the fan 102 will suck the smoke and dust generated inside the printer when it is working into the housing 101. Due to the shielding of the upper sealing plate 107 and the lower sealing plate 108, the air carrying dust sucked into the housing 101 can only enter the interior through the filter holes of the filter cartridge 109, and the dust carried in the air will be filtered by the filter cartridge 109 and remain on the surface of the filter cartridge 109, or fall on the bottom of the inner wall of the housing 101 due to gravity. The air entering the filter cartridge 109 will flow to the front or back due to the blocking effect of the inner sealing plate 106. The air flowing to the front will be discharged through the left sealing plate 103, and the air flowing to the back will be discharged through the right sealing plate 104. This design can timely suck out the dust and smoke generated when the printer is working from the inside of the printer to prevent it from blocking the laser beam and the working area and affecting the precise irradiation of the laser. At the same time, the air sucked out from the inside of the printer can be filtered before being discharged to prevent the dust from being directly discharged and polluting the surrounding environment.
[0052] After the device has been used for a period of time, the filtering working surface of the filter cartridge 109 may gradually be covered and clogged by the filtered dust. As the filter cartridge 109 is gradually clogged, the air sucked in by the fan 102 cannot quickly pass through the filter cartridge 109, thereby gradually increasing the pressure on the right side of the filter cartridge 109. The increased pressure pushes the pressure plate 201 to the left and compresses the spring 1 202. While moving, the pressure plate 201 also compresses the air inside the upper sealing plate 107 and pushes it into the air guide pipe 1 203, thereby The tube 203 will pass the air into the fixed sleeve rod 204, and the air passing into the fixed sleeve rod 204 will push the rack 205 to the right and drive the gear ring 206 to rotate. The gear ring 206 will drive the fixed ring 111 to rotate through the inner teeth 207 and the rotating teeth 112. The fixed ring 111 will drive the filter cartridge 109 to rotate through the fixed frame 110. When the filter cartridge 109 rotates, the unblocked part will be rotated to the right so that the device can filter normally. When the filter cartridge 109 rotates, the dust attached to its outer surface will be scraped off by the lower sealing plate 108, so that the filter cartridge 109 can be used continuously. After the filter cartridge 109 can filter normally, the pressure on the right side of the filter cartridge 109 will return to normal, and the rack 1 205 and the pressure plate 201 will be reset under the action of the spring 1 202. In the process of the rack 1 205 resetting and driving the gear ring 1 206, the inner tooth 207 contacts the rotating tooth 112, and as the gear ring 1 206 continues to rotate, the rotating tooth 112 will pull The spring 113 is tightly wound for rotation, so that the gear ring 206 will not drive the filter cartridge 109 to rotate through the fixed frame 110 and the fixed ring 111 during the rotation. This design can rotate the filter cartridge 109 after the working surface of the filter cartridge 109 is blocked, so that the unused surface of the filter cartridge 109 turns to the right to restore the normal filtration of the filter cartridge 109. At the same time, the dust attached to the surface of the filter cartridge 109 can be scraped off, so that the device can work for a long time without human intervention.
[0053] Since the filtered dust may be stuck in the filter holes of the filter cartridge 109 during use, most of the filter holes of the filter cartridge 109 may be blocked after a long period of use. The dust blocked in the filter holes cannot be scraped off by simply scraping the outer surface of the filter cartridge 109. Therefore, when the filter holes are blocked, the pressure plate 201 will be pushed, thereby moving the rack 205. Since most of the filter holes of the filter cartridge 109 are blocked, rotating the filter cartridge 109 can no longer restore the filtering work to normal, so the rack 205 cannot be reset. As the filter holes become more and more blocked, the rack 205 will continue to move to the right. When the rack 205 moves to the right, it will drive the fixing rod 301 to move together. When the fixing rod 301 moves During the process, the air in the fixed sleeve rod 2 302 will be compressed and pushed into the air duct 2 303, and the air duct 2 303 will pass the air into the fixed sleeve rod 3 304. The air passed into the fixed sleeve rod 304 will push the joint 1 305 toward the front. When the fixed rod 301 moves to a certain distance, the joint 1 305 will contact the joint 2 307. At this time, a passage will be formed between the motor 308 and the power supply, and the motor 308 will be started. This design can detect the blockage of the filter cartridge 109 by the distance moved by the rack 1 205, and can determine whether the motor needs to be started according to the blockage of the filter cartridge 109. No manual intervention is required, and the continuity of production or operation will not be affected, saving human resources and costs.
[0054] After the motor 308 is started, it will drive the rotating shaft 309 to rotate, and the rotating shaft 309 will drive the fixed plate 311 to rotate. During the rotation of the fixed plate 311, due to the action of centrifugal force, the friction block 312 will stretch the spring three 313 and be thrown outward. At this time, the outer surface of the friction block 312 will contact the inner wall of the gear ring 2 314, and then the friction between the friction block 312 and the gear ring 2 314 will drive the gear ring 2 314 to rotate. During the rotation of the gear ring 2 314, the rack 2 315 will move upward. During the upward movement of the rack 2 315, the two sliding sealing plates 316 will move upward together and compress the spring four 317. After the two sliding sealing plates 316 move upward, the through holes opened in the inner sealing plate 106 and the lower sealing plate 108 will be exposed respectively. At this time, the air sucked in by the fan 102 will pass through the lower sealing plate 108 to reach the filter cartridge. The left side of 109, and at the same time, it will also scrape the lower sealing plate 108 and the dust that falls on the bottom of the inner wall of the shell 101 and drive it through the lower sealing plate 108, and the air that passes through the filter cartridge 109 will pass through the inner sealing plate 106 and enter the left side of the inner sealing plate 106. As the air continues to pass through the inner sealing plate 106, the air will flow from the inside of the filter cartridge 109 to the outside of the filter cartridge 109, and then blow out the dust blocked in the filter holes of the filter cartridge 109. In the above process, the air passing through the inner sealing plate 106 and the lower sealing plate 108 will drive the dust to be discharged from the exhaust port 105, and the staff can recycle the dust discharged from the exhaust port 105. This design can blow out the dust blocked in the filter cartridge 109 by the air flowing from the inside of the filter cartridge 109 to the outside, and the air containing dust can be discharged from the exhaust port 105 separately, which is convenient for the staff to recycle.
[0055] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A metal 3D printing device, comprising a filter assembly (1), the filter assembly (1) comprising a housing (101), a fan (102) being fixedly connected to the right side of the housing (101), and a left sealing plate (103) being fixedly connected to the front side of the housing (101), characterized in that: Also includes: A drum assembly (2), the drum assembly (2) comprising a pressure plate (201) arranged inside the housing (101), a spring (202) being fixedly connected to the left side of the pressure plate (201), and an air guide tube (203) being arranged inside the housing (101); The discharge assembly (3) comprises a second fixed sleeve rod (302) fixedly connected to the front side of the housing (101), the inner wall of the second fixed sleeve rod (302) being slidably connected to the fixed rod (301), and the right side of the second fixed sleeve rod (302) being fixedly connected to the second air guide pipe (303).
2. A metal 3D printing device according to claim 1, characterized in that: The back of the outer shell (101) is fixedly connected to a right sealing plate (104); the bottom of the inner wall of the outer shell (101) is provided with a discharge port (105); the back of the left sealing plate (103) is fixedly connected to an inner sealing plate (106); the back of the inner sealing plate (106) is fixedly connected to the front of the right sealing plate (104); the top of the inner wall of the outer shell (101) is fixedly connected to an upper sealing plate (107); the bottom of the inner wall of the outer shell (101) is fixedly connected to a lower sealing plate (108); and the outer surface of the inner sealing plate (106) is rotatably connected to a filter cartridge (109).
3. A metal 3D printing device according to claim 2, characterized in that: The outer surface of the filter cartridge (109) is rotatably connected to the outer surfaces of the upper sealing plate (107) and the lower sealing plate (108), respectively; the inner wall of the filter cartridge (109) is fixedly connected to a fixing frame (110); the inner wall of the fixing frame (110) is rotatably connected to the outer surface of the inner sealing plate (106); the outer surface of the fixing frame (110) is fixedly connected to a fixing ring (111); the inner wall of the fixing ring (111) is rotatably connected to rotating teeth (112); the inner wall of the rotating teeth (112) is fixedly connected to a rotating shaft; the outer surface of the rotating shaft is fixedly connected to a coil spring (113); the coil spring (113) is fixedly connected to the inner wall of the fixing ring (111) at an end away from the rotating shaft.
4. A metal 3D printing device according to claim 3, characterized in that: The outer surface of the pressure plate (201) is slidably connected to the inner wall of the upper sealing plate (107); the left side of the spring (202) is fixedly connected to the left side of the inner wall of the upper sealing plate (107); the left side of the upper sealing plate (107) is fixedly connected to an end of the air guide tube (203) close to the pressure plate (201); the air guide tube (203) is fixedly connected to a fixed sleeve rod (204) at the end away from the upper sealing plate (107); the inner wall of the fixed sleeve rod (204) is slidably connected to a rack (205); the bottom of the rack (205) is meshingly connected to a gear ring (206); the inner wall of the gear ring (206) is rotatably connected to the outer surface of the fixing ring (111); the inner wall of the gear ring (206) is fixedly connected to an inner tooth (207).
5. A metal 3D printing device according to claim 4, characterized in that: The left side of the fixed rod (301) is fixedly connected to the right side of the rack one (205); the air guide tube two (303) is fixedly connected to a fixed sleeve rod three (304) at one end away from the fixed sleeve rod two (302); the outer surface of the fixed sleeve rod three (304) is fixedly connected to the inner wall of the inner sealing plate (106); the inner wall of the fixed sleeve rod three (304) is slidably connected to a joint one (305); the outer surface of the joint one (305) is sleeved with a spring two (306); the back end of the spring two (306) is fixedly connected to the outer surface of the joint one (305); the front end of the spring two (306) is fixedly connected to the front of the inner wall of the right sealing plate (104); and the left side of the inner sealing plate (106) is fixedly connected to a motor (308).
6. A metal 3D printing device according to claim 5, characterized in that: The outer surface of the motor (308) is fixedly connected to a joint 2 (307), the output end of the motor (308) is fixedly connected to a rotating shaft (309), the back of the rotating shaft (309) is fixedly connected to a fixed plate (311), the inner wall of the fixed plate (311) is slidably connected to a plurality of friction blocks (312), the plurality of friction blocks (312) are fixedly connected to a spring 3 (313) on a side close to each other, the spring 3 (313) is fixedly connected to the inner wall of the fixed plate (311) at an end away from the friction block (312), and the outer surface of the fixed plate (311) is rotatably connected to a gear ring 2 (314).
7. A metal 3D printing device according to claim 6, characterized in that: The inner wall of the gear ring 2 (314) is rotatably connected to the outer surface of the rotating shaft (309), and the right side of the gear ring 2 (314) is meshed with the rack 2 (315). The front of the rack 2 (315) is fixedly connected with two sliding sealing plates (316), and the tops of the two sliding sealing plates (316) are fixedly connected with springs 4 (317). The outer surface of the sliding sealing plate (316) close to the motor (308) is slidably connected to the inner wall of the inner sealing plate (106), and the sliding sealing plate (316) away from the motor (308) is slidably connected to the inner wall of the lower sealing plate (108). The top of the spring 4 (317) close to the motor (308) is fixedly connected to the inner wall of the inner sealing plate (106), and the spring 4 (317) away from the motor (308) is fixedly connected to the inner wall of the lower sealing plate (108).
8. A method for using a metal 3D printing device, using the metal 3D printing device as claimed in claim 7, characterized in that: The following steps are included: S1: When using the device, first install the device at a designated location of the printer, then start the fan (102) while the printer is working, suck out the smoke and dust generated inside the printer, and filter and discharge them; S2: After the device has been used for a period of time, the filter cartridge (109) is gradually clogged, and the pressure plate (201) drives the rack 1 (205) to move to the right, thereby driving the filter cartridge (109) to rotate, so as to scrape off the dust on the surface of the filter cartridge (109) and rotate the unblocked part to the right, so that the device can filter normally; S3: After the device has been used for a long time, most of the filter holes of the filter cartridge (109) may be blocked, the motor (308) will be started and drive the sliding sealing plate (316) to move upward, the air will flow out from the inside of the filter cartridge (109), and then blow out the blocked dust, and finally drive the dust to be discharged from the discharge port (105).