Multi-material high-speed 3D printer

Abstract

The invention discloses a multi-material high-speed 3D printer, and relates to the technical field of 3D printers, the multi-material high-speed 3D printer comprises a printer assembly, a forming assembly is arranged in the printer assembly, and the forming assembly comprises a forming cavity. According to the multi-material high-speed 3D printer, when the interior of a forming cavity works, inert gas starts to flow in the forming cavity, by starting a suction pump, under the action of working pressurization of the suction pump, the inert gas can be continuously pumped out of the interior of the forming cavity, smoke dust and metal impurities doped in the inert gas can be filtered out when passing through a filter screen plate, and therefore the smoke dust and the metal impurities are filtered out; clean gas is conveyed out, under the action of airflow, a magnetic suction plate is blown, then a rotating rod rotates in a rotating groove, metal impurities are adsorbed through the magnetic suction plate, the metal impurities are adsorbed to the magnetic suction plate, and when the metal impurities need to be taken out, the rotating rod can be taken out by opening a sealing plate; and smoke dust and metal in the inert gas can be prevented from entering the environment.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, in particular to a multi-material high-speed 3D printer. Background Art

[0002] As a rapid prototyping technology, 3D printing has been applied in many fields such as manufacturing, medical treatment, aerospace, etc. Traditional 3D printing technology has gradually developed from the initial low precision and low speed to high precision and high speed. With the continuous advancement of technology, the requirements for 3D printing speed are increasing to meet the needs of large-scale production and rapid prototyping. The current high-speed 3D printers have improved the printing speed to a certain extent by improving the mechanical structure, optimizing the printing algorithm and upgrading the control system.

[0003] In the prior art, for example, Chinese patent publication number: CN113085179B discloses an auxiliary device for rapid printing of three-dimensional objects during the printing process of three-dimensional objects so as to facilitate lower production costs, including a base and a circular substrate, the circular substrate is connected to the base through an electric lifting rod, a plurality of elastic guide mechanisms are connected between the circular substrate and the base, a track plate is fixedly connected to the base, a mounting gear ring is rotatably connected to the track plate, a driving mechanism is installed on the track plate, two gantries are installed on the mounting gear ring, two moving mechanisms are installed between the two gantries, extrusion mechanisms are installed on both moving mechanisms, a frame is fixedly connected to the base, a top seat is installed on the frame, a circular opening is opened on the top seat, a circular ring frame is fixedly connected to the circular opening, a material roller mechanism is installed on the circular ring frame, and two adjustment mechanisms are installed between the material roller mechanism and the track plate.

[0004] However, in the prior art, in order to prevent the formed metal from being oxidized during the printing process of the multi-material 3D printer, the printing process must be carried out in an environment protected by inert gas. Therefore, it is necessary to inject inert gas into the inside of the forming cavity. The continuously circulating inert gas will take away the smoke or molten metal generated during the printing process. However, the direct discharge of smoke and molten metal will cause environmental pollution, and the metal impurities in the molten metal are also difficult to recover.

[0005] So we proposed a multi-material high-speed 3D printer to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a multi-material high-speed 3D printer to solve the problem of environmental pollution caused by smoke and molten metal in the gas discharged during the existing printing process mentioned in the background art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-material high-speed 3D printer, comprising a printer component, a molding component is arranged inside the printer component, the molding component includes a molding cavity, a filter component is fixedly connected to the rear surface of the molding cavity, the filter component includes a filter box and a suction pump, one side of the filter box is fixedly connected to a delivery pipe, the other side of the filter box is fixedly connected to an air pipe, the input end of the suction pump is fixedly connected to one end of the air pipe, the outer surface of the filter box is rotatably connected to a closing plate, a filter mesh plate is fixedly connected between the diagonals of the inner wall of the filter box, a rotating groove is opened on the inner wall of one side of the filter box and the inner wall of the closing plate, a rotating rod is rotatably connected between the inner walls of the two rotating grooves, a plurality of magnetic suction plates are fixedly connected to the outer surface of the rotating rod, and the magnetic suction plates are used to adsorb metal impurities.

[0008] Preferably, the printer assembly includes a printer cabinet, a device pull-up door is arranged on the front surface of the printer cabinet, an emergency stop button is arranged on the outer surface of the device pull-up door, a key switch is arranged at the bottom of the emergency stop button, and a servo button is arranged at the bottom of the key switch.

[0009] Preferably, a laser button is arranged at the bottom of the servo button, a USB interface is arranged at the bottom of the laser button, a door lock button is arranged at the bottom of the USB interface, and a lighting button is arranged at the bottom of the door lock button.

[0010] Preferably, an indicator light is arranged on the top of the printer cabinet, and a display is arranged on one side of the printer cabinet, and the display is used to display equipment operation data.

[0011] Preferably, a keyboard is arranged on one side of the printer cabinet near the display, and the keyboard is used to operate the device, and a device front door is arranged on the front surface of the printer cabinet near the bottom.

[0012] Preferably, an air inlet is fixedly connected to the outer surface of one side of the molding cavity, and the air inlet is used to enter inert gas, and an air outlet is fixedly connected to the outer surface of the other side of the molding cavity, and one end of the air outlet is fixedly connected to one end of the delivery pipe.

[0013] Preferably, the bottom of the molding cavity is fixedly connected to a powder feeding cylinder near the air inlet, the inner wall of the powder feeding cylinder is slidably connected to a support plate, metal powder is placed on the top of the support plate, the bottom of the molding cavity is fixedly connected to a molding cylinder near the air outlet, a feed port is provided on the outer surface of the molding cylinder near the bottom, the inner wall of the molding cylinder is slidably connected to a base plate, and a printed part is arranged on the top of the base plate.

[0014] Preferably, the bottom of the powder feeding cylinder and the bottom of the forming cylinder are fixedly connected to a mounting frame, the inner walls of the two mounting frames are provided with electric push rods, and the top ends of the two electric push rods are fixedly connected to the bottom of the support plate and the base plate respectively.

[0015] Preferably, a window glass is fixedly embedded on the top of the molding cavity, an optical system is arranged at the top of the molding cavity corresponding to the window glass, and a powder collecting port is arranged at the bottom of the molding cavity near the molding cylinder.

[0016] Preferably, the relative inner walls of the forming cavity are fixedly connected to two limit bars, a scraper is arranged inside the forming cavity, and the scraper is arranged above the inner bottom of the forming cavity, two sliding grooves are provided on both sides of the scraper, and the inner wall of each sliding groove is slidably connected to the outer surface of each limit bar, and a threaded block is fixedly connected to the inner wall of one side of the scraper, and a threaded rod is threadedly connected to the inner wall of the threaded block, and limit tubes are rotatably sleeved on both ends of the threaded rod, and the two limit tubes are fixedly connected to the inner walls on both sides of the forming cavity, respectively, and a forward and reverse motor is arranged on the outer surface of one side of the forming cavity through a bracket, and the output shaft of the forward and reverse motor passes through the forming cavity to its interior and is fixedly connected to one end of the threaded rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. When in use, the internal operation can be completed by opening the upper door of the equipment. The upper door of the equipment is closed during the printing process. The same principle applies. The control equipment and internal wiring can be maintained by opening the front door of the equipment. When printing is in progress, the front door of the equipment is closed for protection. When preparing for printing, the operator must wear personal protective equipment such as protective masks, disposable protective gloves and protective clothing. During the printing process, if it is found that there is a danger to people, equipment and the environment, stop the equipment immediately. If the situation is urgent, press the emergency stop button. After the problems or faults are solved, release the emergency stop button and the equipment can operate normally. The display is a touch screen, which can be operated through the keyboard or directly on the display. The USB plug can be connected through the USB interface, and the light can be turned on by pressing the bright button. After all preparations are done and the surrounding environment and working conditions have been checked for safety, you can start the printing program directly, and the indicator light on the top of the device will light green.

[0018] 2. During use, when the molding cavity is working, the inert gas begins to flow inside the molding cavity. By starting the suction pump, the inert gas will be continuously extracted from the molding cavity under the action of the suction pump working pressure. The smoke and metal impurities mixed in the inert gas will be filtered out when passing through the filter plate, and the clean gas will be transported out. Under the action of the airflow, the magnetic plate will be blown, and the rotating rod will rotate inside the rotating groove, and the metal impurities will be adsorbed on the magnetic plate through the magnetic plate. When it needs to be taken out, the rotating rod can be taken out by opening the closing plate, which can prevent the smoke and metal in the inert gas from entering the environment.

[0019] 3. When in use, start the two electric push rods to extend them to push the support plate and the base plate upward, thereby pushing the metal powder and the printed part upward so that the top surface part reaches the matching height with the inner bottom surface of the molding cavity. The two electric push rods are controlled separately. The rapid molding of metal powder inside the molding cavity is completed using laser. This method can directly mold metal parts with close to complete density. The printing process must be carried out in an inert gas protection environment. In order to prevent the molded metal from being oxidized, the inert gas enters from the air inlet and exits from the air outlet. The movement of the scraper is driven by the forward and reverse motors. By starting the forward and reverse motors, the output shaft is rotated, thereby driving the threaded rod to rotate. The threaded rod rotates inside the two limit tubes. The limit tube plays a role of limit positioning. The limit bar limits the scraper, and the threaded connection between the threaded rod and the threaded block is coordinated, so that the scraper can move inside the molding cavity, and then the metal powder can be scraped and spread. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A sectional stereoscopic diagram of a multi-material high-speed 3D printer of the present invention; Figure 2 A side perspective view of a multi-material high-speed 3D printer according to the present invention; Figure 3 It is a front view of a part of a molding component of a multi-material high-speed 3D printer of the present invention; Figure 4 A partially cutaway stereoscopic view of a molding component of a multi-material high-speed 3D printer of the present invention; Figure 5 A rear perspective view of a filter assembly portion of a multi-material high-speed 3D printer of the present invention; Figure 6 A top view of a molding component portion of a multi-material high-speed 3D printer of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8A partially cutaway stereoscopic view of a molding cavity of a multi-material high-speed 3D printer of the present invention; Fig. 9 It is a partial cross-sectional stereoscopic view of a filter component of a multi-material high-speed 3D printer of the present invention.

[0021] In the figure: 1. Printer components; 101. Equipment pull-up door; 102. Equipment front door; 103. Indicator light; 104. Emergency stop button; 105. Key switch; 106. Display; 107. Servo button; 108. Laser button; 109. USB interface; 110. Door lock button; 111. Keyboard; 112. Lighting button; 113. Printer cabinet; 2. Molding components; 201. Air inlet; 202. Scraper; 203. Molding cavity; 204. Metal powder; 205. Powder feeding cylinder; 206. Printed part; 207. Optical system; 208. Window glass; 209, forming cylinder; 210, base plate; 211, air outlet; 212, powder collecting port; 213, feed port; 214, support plate; 215, mounting frame; 216, electric push rod; 217, forward and reverse motor; 218, limit strip; 219, threaded rod; 220, limit tube; 221, threaded block; 222, slide; 3, filter assembly; 301, conveying pipe; 302, filter box; 303, suction pump; 304, air supply pipe; 305, filter screen plate; 306, closing plate; 307, rotating slot; 308, rotating rod; 309, magnetic plate. DETAILED DESCRIPTION

[0022] 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 implementation regulations described 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.

[0023] Example 1: Reference Figure 1 - Fig. 9As shown, the present invention provides a technical solution: a multi-material high-speed 3D printer, comprising a printer component 1, a molding component 2 is arranged inside the printer component 1, the molding component 2 includes a molding cavity 203, a filter component 3 is fixedly connected to the rear surface of the molding cavity 203, the filter component 3 includes a filter box 302 and a suction pump 303, one side of the filter box 302 is fixedly connected to a delivery pipe 301, the other side of the filter box 302 is fixedly connected to an air delivery pipe 304, the input end of the suction pump 303 is fixedly connected to one end of the air delivery pipe 304, the outer surface of the filter box 302 is rotatably connected to a closing plate 306, the inner wall diagonal of the filter box 302 is fixedly connected to a filter screen plate 305, one side of the inner wall of the filter box 302 and the closing plate 306 are fixedly connected. 06 are provided with a rotating groove 307 on the inner wall, a rotating rod 308 is rotatably connected between the inner walls of the two rotating grooves 307, a plurality of magnetic plates 309 are fixedly connected to the outer surface of the rotating rod 308, and the magnetic plates 309 are used to adsorb metal impurities, an outer surface of one side of the molding cavity 203 is fixedly connected with an air inlet 201, and the air inlet 201 is used to enter the inert gas, and an outer surface of the other side of the molding cavity 203 is fixedly connected with an air outlet 211, one end of the air outlet 211 is fixedly connected with one end of the conveying pipe 301, a powder feeding cylinder 205 is fixedly connected to the bottom of the molding cavity 203 near the air inlet 201, and a support plate 214 is slidably connected to the inner wall of the powder feeding cylinder 205, and metal powder 204 is placed on the top of the support plate 214. The bottom of the molding chamber 203 is fixedly connected to a molding cylinder 209 near the air outlet 211, and a feed port 213 is provided on the outer surface of the molding cylinder 209 near the bottom. The inner wall of the molding cylinder 209 is slidably connected to a base plate 210, and a printing piece 206 is arranged on the top of the base plate 210. The bottom of the powder feeding cylinder 205 and the bottom of the molding cylinder 209 are fixedly connected to a mounting frame 215, and the inner walls of the two mounting frames 215 are both provided with electric push rods 216, and the top ends of the two electric push rods 216 are respectively fixedly connected to the supporting plate 214 and the bottom of the base plate 210. A window glass 208 is fixedly embedded on the top of the molding chamber 203, and an optical system 207 is arranged at the top of the molding chamber 203 corresponding to the window glass 208. The bottom of the molding chamber 203 is near the molding cylinder 20 A powder collecting port 212 is arranged at 9, and two limiting strips 218 are fixedly connected to the relative inner walls of the molding cavity 203. A scraper 202 is arranged inside the molding cavity 203, and the scraper 202 is arranged above the inner bottom of the molding cavity 203. Two slide grooves 222 are arranged on both sides of the scraper 202, and the inner wall of each slide groove 222 is respectively slidably connected to the outer surface of each limiting strip 218. A threaded block 221 is fixedly connected to the inner wall of one side of the scraper 202, and a threaded rod 219 is threadedly connected to the inner wall of the threaded block 221. Limiting tubes 220 are rotatably sleeved at both ends of the threaded rod 219. The two limiting tubes 220 are respectively fixedly connected to the inner walls on both sides of the molding cavity 203. A forward and reverse motor 217 is arranged on the outer surface of one side of the molding cavity 203 through a bracket.The output shaft of the forward and reverse motor 217 passes through the molding cavity 203 to the inside thereof and is fixedly connected to one end of the threaded rod 219.

[0024] In this embodiment, when in use, the printer assembly 1 is a component of the entire 3D printer, wherein the device pull-up door 101 and the device front door 102 can be opened and closed, the indicator light 103 can serve as a light prompt, and the control panel is used to control the emergency stop button 104, the key switch 105, the servo button 107, the laser button 108, the door lock button 110 and the lighting button 112, the USB interface 109 is used for connection, and in addition, the display 106 is used to display the printing data on the one hand, and can be touched on the other hand, and can be operated like the keyboard 111. When the inside of the molding cavity 203 is working, the inert gas starts The inert gas flows inside the molding cavity 203, and by starting the suction pump 303, the inert gas will be continuously extracted from the molding cavity 203 under the action of the working pressure of the suction pump 303. The smoke and metal impurities mixed in the inert gas will be filtered out when passing through the filter plate 305, and the clean gas will be transported out. Under the action of the airflow, the magnetic plate 309 will be blown, and then the rotating rod 308 will rotate inside the rotating groove 307, and the metal impurities will be adsorbed by the magnetic plate 309. The metal impurities are adsorbed on the magnetic plate 309. When it needs to be taken out, the rotating rod 308 can be taken out by opening the closing plate 306, so that the smoke and metal in the inert gas can be prevented from entering the environment.

[0025] Embodiment 2: Figure 1 - Fig. 9 As shown, a molding component 2 is arranged inside the printer component 1, and the printer component 1 includes a printer cabinet 113, a device pull-up door 101 is arranged on the front surface of the printer cabinet 113, an emergency stop button 104 is arranged on the outer surface of the device pull-up door 101, a key switch 105 is arranged at the bottom of the emergency stop button 104, a servo button 107 is arranged at the bottom of the key switch 105, a laser button 108 is arranged at the bottom of the servo button 107, a USB interface 109 is arranged at the bottom of the laser button 108, a door lock button 110 is arranged at the bottom of the USB interface 109, and a lighting button 112 is arranged at the bottom of the door lock button 110, an indicator light 103 is arranged at the top of the printer cabinet 113, a display 106 is arranged on one side of the printer cabinet 113, and the display 106 is used to display device operation data, a keyboard 111 is arranged on one side of the printer cabinet 113 near the display 106, and the keyboard 111 is used to operate the device operation, and a device front door 102 is arranged near the bottom of the front surface of the printer cabinet 113.

[0026] In this embodiment, when in use, the printer cabinet 113 is the main structure of the high-speed 3D printer. By opening the upper pull-up door 101 of the device, the internal operation can be completed. During the printing process, the upper pull-up door 101 of the device is closed. By the same principle, the control device and the internal wiring can be maintained by opening the front door 102 of the device. When the printing work is in progress, the front door 102 of the device is closed for protection. When performing the printing preparation operation, the operator must wear personal protective equipment such as protective masks, disposable protective gloves and protective clothing. During the printing process, if any harm to people, equipment and the environment is found, If there is danger in the environment, stop the equipment immediately. If the situation is urgent, press the emergency stop button 104. After the problems or faults are solved, release the emergency stop button 104 and the equipment can operate normally. The display 106 is a touch screen, which can be operated through the keyboard 111 or directly on the display 106. The USB plug can be connected through the USB interface 109, and the light can be turned on by pressing the light button 112. After all preparations are done and the surrounding environment and working conditions have been checked for safety, the program can be printed directly, and the indicator light 103 on the top of the device lights up green.

[0027] Embodiment three: Figure 1 - Fig. 9As shown, a molding component 2 is arranged inside the printer component 1, and the molding component 2 includes a molding cavity 203, an outer surface of one side of the molding cavity 203 is fixedly connected with an air inlet 201, and the air inlet 201 is used to enter the inert gas, and the outer surface of the other side of the molding cavity 203 is fixedly connected with an air outlet 211, and one end of the air outlet 211 is fixedly connected with one end of the conveying pipe 301, and the bottom of the molding cavity 203 is fixedly connected with a powder feeding cylinder 205 near the air inlet 201, and the inner wall of the powder feeding cylinder 205 is slidably connected with a support plate 214, and the support plate 214 is fixedly connected with the inner wall of the powder feeding cylinder 205. Metal powder 204 is placed on the top, a molding cylinder 209 is fixedly connected to the bottom of the molding cavity 203 near the air outlet 211, a feed port 213 is provided on the outer surface of the molding cylinder 209 near the bottom, a base plate 210 is slidably connected to the inner wall of the molding cylinder 209, a printing piece 206 is arranged on the top of the base plate 210, a mounting frame 215 is fixedly connected to the bottom of the powder feeding cylinder 205 and the bottom of the molding cylinder 209, electric push rods 216 are arranged on the inner walls of the two mounting frames 215, and the tops of the two electric push rods 216 are respectively connected to the support plate 214 and the base plate 210. The bottom of the plate 210 is fixedly connected, a window glass 208 is fixedly embedded on the top of the molding cavity 203, an optical system 207 is arranged at the top of the molding cavity 203 corresponding to the window glass 208, a powder receiving port 212 is arranged at the bottom of the molding cavity 203 near the molding cylinder 209, two limit bars 218 are fixedly connected to the opposite inner walls of the molding cavity 203, a scraper 202 is arranged inside the molding cavity 203, the scraper 202 is arranged above the inner bottom of the molding cavity 203, two slide grooves 222 are arranged on both sides of the scraper 202, and each slide groove 22 2 is slidably connected to the outer surface of each limiting strip 218, one side inner wall of the scraper 202 is fixedly connected with a threaded block 221, the inner wall of the threaded block 221 is threadedly connected with a threaded rod 219, both ends of the threaded rod 219 are rotatably sleeved with limiting tubes 220, the two limiting tubes 220 are respectively fixedly connected to the inner walls of the two sides of the molding cavity 203, and the outer surface of one side of the molding cavity 203 is provided with a forward and reverse motor 217 through a bracket, and the output shaft of the forward and reverse motor 217 passes through the molding cavity 203 to the inside thereof and is fixedly connected to one end of the threaded rod 219.

[0028] In this embodiment, when in use, the metal powder 204 is put into the powder feeding cylinder 205 through the feed port 213, and the two electric push rods 216 are started to extend to push the support plate 214 and the substrate 210 upward, thereby pushing the metal powder 204 and the printed part 206 upward so that the top surface part and the inner bottom surface of the molding cavity 203 reach an adaptive height. The two electric push rods 216 are controlled separately. The rapid molding of the metal powder 204 in the molding cavity 203 is completed using a laser. This method can directly mold metal parts with nearly complete density. The process is a cyclic process, which consists of three parts. The cycle ends until the printing process is completed. In the first step, a layer of metal powder 204 with a thickness of 20 to 100 microns is spread on the substrate 210 using a scraper 202. In the second step, the laser emitted by the laser passes through the optical system 207 and radiates to the surface of the metal powder 204. In the third step, the metal powder 204 absorbs The laser energy is collected and heated to a temperature higher than the melting point of the powder, so that the molten metal powder 204 is metallurgically combined with the previous layer, and the excess metal powder 204 falls into the powder collecting chamber for recycling and reuse. During the printing process, in order to prevent the formed metal from being oxidized, the printing process must be carried out in an inert gas protection environment. The inert gas enters from the air inlet 201 and exits from the air outlet 211. The movement of the scraper 202 is driven by the forward and reverse motor 217. By starting the forward and reverse motor 217, the output shaft is rotated, thereby driving the threaded rod 219 to rotate. The threaded rod 219 rotates inside the two limiting tubes 220. The limiting tube 220 plays a role of limiting and positioning. The scraper 202 is limited by the limiting bar 218, and the threaded connection between the threaded rod 219 and the threaded block 221 is matched, so that the scraper 202 can move inside the forming cavity 203, and then the metal powder 204 can be scraped and spread.

[0029] The method of use and working principle of the device: When in use, the printer cabinet 113 is the main structure of the high-speed 3D printer. By opening the upper pull-up door 101 of the device, the internal operation can be completed. The upper pull-up door 101 of the device is closed during the printing process. The same principle is used to open the front door 102 of the device to maintain the control device and the internal wiring. When the printing work is in progress, the front door 102 of the device is closed to play a protective role. When preparing for printing, the operator must wear personal protective equipment such as protective masks, disposable protective gloves and protective clothing. During the printing process, if it is found that there is a danger to people, equipment and the environment, stop the equipment immediately. If the situation is urgent, press the emergency stop button 104. After the problems or failures are solved, release the emergency stop button. After releasing the emergency stop button 104, the equipment can operate normally. The display 106 is a touch screen, which can be operated through the keyboard 111 or directly on the display 106. The USB plug can be connected through the USB interface 109, and the light can be turned on by pressing the light button 112. After all preparations are done and the surrounding environment and working conditions are checked for safety, the linear printing program can be started. The indicator light 103 on the top of the equipment lights up green. When in use, metal powder 204 is put into the powder feeding cylinder 205 through the feed port 213, and the two electric push rods 216 are started to extend to push the support plate 214 and the base plate 210 upward, thereby pushing the metal powder 204 and the printed part 206 upward so that the top surface part thereof is aligned with the printed part 206. The inner bottom surface of the molding cavity 203 reaches the fitting height, and the two electric push rods 216 are controlled separately. The metal powder 204 in the molding cavity 203 is quickly molded by using a laser. This method can directly mold metal parts with nearly complete density. The process is a cyclic process, which consists of three parts. The cycle ends until the printing process is completed. In the first step, a layer of metal powder 204 with a thickness of 20 to 100 microns is spread on the substrate 210 using a scraper 202. In the second step, the laser emitted by the laser passes through the optical system 207 and radiates to the surface of the metal powder 204. In the third step, the metal powder 204 absorbs the laser energy and is heated to a temperature higher than the melting point of the powder. In this way, the molten metal powder 204 is metallurgically bonded with the previous layer. The remaining metal powder 204 falls into the powder collecting chamber for recycling and reuse. During the printing process, in order to prevent the formed metal from being oxidized, the printing process must be carried out in an inert gas protection environment. The inert gas enters from the air inlet 201 and exits from the air outlet 211. The movement of the scraper 202 is driven by the forward and reverse motor 217. By starting the forward and reverse motor 217, the output shaft is rotated, thereby driving the threaded rod 219 to rotate. The threaded rod 219 rotates inside the two limiting tubes 220. The limiting tube 220 plays a role in limiting and positioning. The scraper 202 is limited by the limiting strip 218, and the threaded connection between the threaded rod 219 and the threaded block 221 is matched, so that the scraper 202 can move inside the forming cavity 203.Then, the metal powder 204 can be scraped and spread. When in use, the printer component 1 is a component of the entire 3D printer, wherein the device pull-up door 101 and the device front door 102 can be opened and closed, the indicator light 103 can serve as a light prompt, and the control panel is used to control the emergency stop button 104, the key switch 105, the servo button 107, the laser button 108, the door lock button 110 and the lighting button 112, the USB interface 109 is used for connection, and in addition, the display 106 is used to display the printing data on the one hand, and can be touched on the other hand, and can be operated like the keyboard 111, when the molding cavity 2 When the inner part of the molding chamber 203 is working, the inert gas begins to flow inside the molding chamber 203. By starting the suction pump 303, the inert gas will be continuously drawn out from the molding chamber 203 under the action of the suction pump 303 working and pressurizing. The smoke and metal impurities mixed in the inert gas will be filtered out when passing through the filter plate 305, and the clean gas will be transported out. Under the action of the airflow, the magnetic plate 309 will be blown, and then the rotating rod 308 will rotate inside the rotating groove 307, and the metal impurities will be adsorbed by the magnetic plate 309. The metal impurities are adsorbed on the magnetic plate 309. When they need to be taken out, the rotating rod 308 can be taken out by opening the closing plate 306.

[0030] The wiring diagram of the indicator light 103, emergency stop button 104, display 106, servo button 107, laser button 108, USB interface 109, door lock button 110, keyboard 111, lighting button 112, optical system 207, electric push rod 216, forward and reverse motor 217 and suction pump 303 in the present invention is common knowledge in the art, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the indicator light 103, emergency stop button 104, display 106, servo button 107, laser button 108, USB interface 109, door lock button 110, keyboard 111, lighting button 112, optical system 207, electric push rod 216, forward and reverse motor 217 and suction pump 303 will no longer be explained in detail.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-material high-speed 3D printer, comprising a printer component (1), wherein a molding component (2) is arranged inside the printer component (1), wherein the molding component (2) comprises a molding cavity (203), and a filter component (3) is fixedly connected to the rear surface of the molding cavity (203), characterized in that: The filter assembly (3) comprises a filter box (302) and a suction pump (303); one side of the filter box (302) is fixedly connected to a delivery pipe (301); the other side of the filter box (302) is fixedly connected to an air delivery pipe (304); the input end of the suction pump (303) is fixedly connected to one end of the air delivery pipe (304); a closing plate (306) is rotatably connected to the outer surface of the filter box (302); a filter screen plate (305) is fixedly connected between the diagonal inner walls of the filter box (302); a rotating groove (307) is provided on the inner wall of one side of the filter box (302) and the inner wall of the closing plate (306); a rotating rod (308) is rotatably connected between the inner walls of the two rotating grooves (307); a plurality of magnetic suction plates (309) are fixedly connected to the outer surface of the rotating rod (308); and the magnetic suction plates (309) are used to adsorb metal impurities.

2. The multi-material high-speed 3D printer according to claim 1, characterized in that: The printer assembly (1) comprises a printer cabinet (113), a device pull-up door (101) is arranged on the front surface of the printer cabinet (113), an emergency stop button (104) is arranged on the outer surface of the device pull-up door (101), a key switch (105) is arranged at the bottom of the emergency stop button (104), and a servo button (107) is arranged at the bottom of the key switch (105).

3. The multi-material high-speed 3D printer according to claim 2, characterized in that: A laser button (108) is arranged at the bottom of the servo button (107), a USB interface (109) is arranged at the bottom of the laser button (108), a door lock button (110) is arranged at the bottom of the USB interface (109), and a lighting button (112) is arranged at the bottom of the door lock button (110).

4. The multi-material high-speed 3D printer according to claim 3, characterized in that: An indicator light (103) is arranged on the top of the printer cabinet (113), and a display (106) is arranged on one side of the printer cabinet (113), and the display (106) is used to display device operation data.

5. The multi-material high-speed 3D printer according to claim 4, characterized in that: A keyboard (111) is arranged on one side of the printer cabinet (113) near the display (106), and the keyboard (111) is used to operate the device. A device front door (102) is arranged on the front surface of the printer cabinet (113) near the bottom.

6. The multi-material high-speed 3D printer according to claim 5, characterized in that: An air inlet (201) is fixedly connected to an outer surface of one side of the molding cavity (203), and the air inlet (201) is used to allow inert gas to enter. An air outlet (211) is fixedly connected to an outer surface of the other side of the molding cavity (203), and one end of the air outlet (211) is fixedly connected to one end of the delivery pipe (301).

7. The multi-material high-speed 3D printer according to claim 6, characterized in that: The bottom of the molding cavity (203) is fixedly connected to a powder feeding cylinder (205) near the air inlet (201), the inner wall of the powder feeding cylinder (205) is slidably connected to a support plate (214), and metal powder (204) is placed on the top of the support plate (214). The bottom of the molding cavity (203) is fixedly connected to a molding cylinder (209) near the air outlet (211), and a feed port (213) is provided on the outer surface of the molding cylinder (209) near the bottom. The inner wall of the molding cylinder (209) is slidably connected to a base plate (210), and a printing piece (206) is arranged on the top of the base plate (210).

8. The multi-material high-speed 3D printer according to claim 7, characterized in that: The bottom of the powder feeding cylinder (205) and the bottom of the forming cylinder (209) are both fixedly connected to a mounting frame (215), the inner walls of the two mounting frames (215) are both provided with electric push rods (216), and the top ends of the two electric push rods (216) are respectively fixedly connected to the bottom of the support plate (214) and the base plate (210).

9. The multi-material high-speed 3D printer according to claim 8, characterized in that: A window glass (208) is fixedly embedded in the top of the molding cavity (203), an optical system (207) is arranged at the top of the molding cavity (203) corresponding to the window glass (208), and a powder collection port (212) is arranged at the bottom of the molding cavity (203) near the molding cylinder (209).

10. The multi-material high-speed 3D printer according to claim 9, characterized in that: Two limiting strips (218) are fixedly connected to the opposite inner walls of the molding cavity (203); a scraper (202) is arranged inside the molding cavity (203); the scraper (202) is arranged above the inner bottom of the molding cavity (203); two sliding grooves (222) are provided on both sides of the scraper (202); the inner wall of each sliding groove (222) is slidably connected to the outer surface of each limiting strip (218); and a threaded block (222) is fixedly connected to the inner wall of one side of the scraper (202). 1), the inner wall of the threaded block (221) is threadedly connected to a threaded rod (219), both ends of the threaded rod (219) are rotatably sleeved with limit tubes (220), the two limit tubes (220) are respectively fixedly connected to the inner walls on both sides of the molding cavity (203), a forward and reverse motor (217) is arranged on the outer surface of one side of the molding cavity (203) through a bracket, and the output shaft of the forward and reverse motor (217) passes through the molding cavity (203) to the inside thereof and is fixedly connected to one end of the threaded rod (219).

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