Self-cleaning type industrial 3D printer

Abstract

The invention discloses a self-cleaning type industrial 3D printer, and relates to the technical field of 3D printers. The printer comprises a printer body, a printing platform is arranged in the middle of the top of the printer body, a cleaning device is arranged at the top of the printer body and comprises a driving assembly and two friction strips, and the driving assembly is arranged at the top of the printer body and comprises a concentric-square-shaped frame; the cleaning device is arranged, in the process that the U-shaped telescopic frame moves towards the front side every time, the telescopic end of the U-shaped telescopic frame can make the cotton brush roller make close contact with the surface of the printing platform, and therefore the cotton brush roller can be conveniently cleaned; each corner of the printing platform can be cleaned, the design that the cotton brush roller is tightly attached to the surface of the printing platform is beneficial for removing attached dust, stains, grease or other residues, and therefore thorough cleaning is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, and particularly to a self-cleaning industrial 3D printer. Background Art

[0002] A 3D printer is a device that manufactures three-dimensional objects by layer-by-layer material deposition. It uses computer-aided design drawings and precisely prints materials (such as plastics, metals, ceramics, etc.) through additive manufacturing technology. Widely applied in rapid prototyping, personalized customization, product production, etc., it can achieve the manufacture of complex structures, save materials, and improve production efficiency. With the rapid development of 3D printing technology promoting innovation and transformation in the manufacturing industry, after each printing operation of the 3D printer, materials are likely to adhere and remain on the workbench, thus requiring the cleaning of the workbench surface.

[0003] Chinese Patent Publication No. CN217968427U discloses a 3D printer capable of self-cleaning. Its structure includes a machine body, an operation screen, support feet, an auxiliary mechanism, a USB slot, a guide rail, a workbench, a frame, a lead screw, and a printing device. By providing an auxiliary mechanism at the rear end of the machine body, when the swing device provided inside the auxiliary mechanism operates, it can drive the cleaning plate to slide and work, thereby easily cleaning the residues on the workbench. This not only avoids the cumbersome and inconvenient cleaning of the workbench by operators but also enhances the working efficiency of the 3D printer. Through the cleaning device provided at the front end of the swing device, the structure provided inside it can effectively and quickly connect and fix the cleaning plate to the first limit frame, achieving the effect of quick disassembly and fixation, which is more convenient for operators to work.

[0004] However, the current 3D printers have the following problems: This 3D printer uses the reciprocating movement of the cleaning plate to clean the dust, stains, sweat, grease, residues of fixed glue sticks or glue on the workbench. However, when the cleaning plate reciprocates on the workbench, the cleaning plate will bring the already cleaned residues such as dust, stains, or grease back to other areas of the workbench, causing secondary pollution. Therefore, we have proposed a self-cleaning industrial 3D printer. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a self-cleaning industrial 3D printer, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A self-cleaning industrial 3D printer, comprising a printer main body, a printing platform is arranged in the middle of the top of the printer main body, a cleaning device is arranged on the top of the printer main body, the cleaning device includes a driving component and two friction strips, the driving component is arranged on the top of the printer main body, the driving component includes a U-shaped frame, the U-shaped frame is fixed on the top of the printer main body, grooves are respectively arranged on both sides of the top of the U-shaped frame, a sliding rod is fixed inside the groove on one side of the U-shaped frame, a second moving block is slidably installed on the outer part of the sliding rod, a screw rod is rotatably installed inside the groove on the other side of the U-shaped frame, and the screw rod is driven by a motor, a first moving block is threadedly connected to the outer part of the screw rod, the second moving block and the first moving block are the moving ends of the driving component, the two friction strips are respectively fixed on both sides of the inner wall of the U-shaped frame, the friction strips are located in the middle position of the U-shaped frame, and the friction strips face the printing platform, a U-shaped telescopic frame is fixed on the top of the moving end of the driving component, a cotton brush roller is rotatably installed on the inner wall above the telescopic end of the U-shaped telescopic frame, L-shaped frames II are respectively fixed on both sides of the inner wall of the telescopic end of the U-shaped telescopic frame, a U-shaped plate is fixed at the bottom of the L-shaped frame II, L-shaped frames I are respectively fixed on both sides of the inner wall of the fixed end of the U-shaped telescopic frame, a friction wheel is rotatably installed on the outer wall of the L-shaped frame I, an L-shaped column rod is fixed on the side of the friction wheel away from the L-shaped frame I, and the end of the L-shaped column rod away from the friction wheel is slidably installed inside the U-shaped plate. The bottom surface of the cotton brush roller is on the same horizontal plane as the top surface of the printing platform. The top surface of the friction strip is located on the movement track of the friction wheel, and both the top surface of the friction strip and the outer wall of the friction wheel are set as rough surfaces. The screw rod drives the first moving block to drive the U-shaped telescopic frame to reciprocate inside the groove of the U-shaped frame, and the U-shaped telescopic frame also drives the second moving block to move along the outer part of the sliding rod. Each time the U-shaped telescopic frame moves forward, when the fixed end of the U-shaped telescopic frame drives the friction wheel to move to the position of the friction strip through the L-shaped frame I, the telescopic end of the U-shaped telescopic frame synchronously drives the cotton brush roller to move to the position of the printing platform. At the same time, under the action of the frictional force between the friction strip and the friction wheel, the friction strip drives the friction wheel to rotate. The friction wheel rotates and drives the L-shaped column rod to rotate downward. The L-shaped column rod slides inside the U-shaped plate and drives the U-shaped plate to move downward. The U-shaped plate pulls the telescopic end of the U-shaped telescopic frame to move downward through the L-shaped frame II, so as to ensure that the telescopic end of the U-shaped telescopic frame can make the cotton brush roller closely contact the surface of the printing platform.

[0007] According to the above technical solution, an auxiliary device is provided on the front side of the U-shaped telescopic frame. The auxiliary device includes four connecting frames and two U-shaped rods. The four connecting frames are respectively fixed on the top of the front side of the telescopic end of the U-shaped telescopic frame. A U-shaped plate is fixed on the front side of the four connecting frames. Chutes are provided on both sides of the U-shaped plate. Sliders are slidably installed in the two chutes of the U-shaped plate. A rotating rod is rotatably installed between the two sliders. Contact wheels are fixed on both sides of the rotating rod. Flapping blades are evenly fixed on the outer wall of the middle part of the rotating rod in a circumferential manner. Arc plates are fixed on both sides of the U-shaped plate. The two U-shaped rods are respectively fixed on both sides of the top of the return frame. The tops of the contact wheels and the U-shaped rods are both set as rough surfaces. The contact wheels are in contact with the tops of the U-shaped rods. When the U-shaped telescopic frame moves, it will drive the U-shaped plate to move along through the connecting frames. The U-shaped plate drives the rotating rod and the contact wheels to move through the sliders. Under the frictional force between the contact wheels and the U-shaped rods, the U-shaped rods drive the contact wheels to rotate. The contact wheels drive the flapping blades to rotate through the rotating rod and generate an air current. And the arc plates will guide the air current generated by the flapping blades downward, so that the air current blows towards the printing platform.

[0008] According to the above technical solution, a scraping device is provided at the bottom of the connecting frame. The scraping device includes a fixing plate, a collection box, and two L-shaped inclined rods. The fixing plate is fixed at the bottom of the connecting frame. An L-shaped scraping plate is hinged to the bottom of the fixing plate, and a torsion spring is provided between the L-shaped scraping plate and the fixing plate. L-shaped pushing columns are fixed on both outer walls of the L-shaped scraping plate. The two L-shaped inclined rods are respectively fixed on the sides of the two U-shaped rods close to each other. The collection box is fixed on the top of the front side of the return frame. The side of the L-shaped pushing column away from the L-shaped scraping plate is in contact with the top of the L-shaped inclined rod. The front side of the L-shaped inclined rod is inclined. The collection box is located below the inclined part of the L-shaped inclined rod. At the same time, the connecting frame drives the fixing plate to move along. The fixing plate drives the L-shaped scraping plate and the L-shaped pushing columns to move along. Since the L-shaped pushing column abuts against the horizontal cross-bar part of the L-shaped inclined rod, the L-shaped pushing column keeps the L-shaped scraping plate in a horizontal state. When the L-shaped scraping plate moves to the printing platform, the L-shaped scraping plate will scrape the printing materials remaining on the surface of the printing platform. The scraped printing materials will accumulate on the top of the L-shaped scraping plate.

[0009] According to the above technical solution, a number of arc blocks are evenly and equidistantly fixed on the inclined top of the L-shaped inclined rod. At the same time, when the L-shaped pushing column moves to the position of the arc block, the arc block will push the L-shaped pushing column to drive the L-shaped scraping plate to swing in a wave-like manner up and down.

[0010] The present invention provides a self-cleaning industrial 3D printer. It has the following beneficial effects:

[0011] (1) Through the setting of the cleaning device, during each forward movement of the U-shaped telescopic frame, the telescopic end of the U-shaped telescopic frame can make the cotton brush roller closely contact the surface of the printing platform, ensuring that every corner of the printing platform can be cleaned. The design of the cotton brush roller closely adhering to the surface of the printing platform helps to remove adhered dust, stains, grease or other residues, thus achieving thorough cleaning. During each backward movement of the U-shaped telescopic frame, the telescopic end of the U-shaped telescopic frame drives the cotton brush roller away from the printing platform, thus effectively avoiding the re - bringing of the already cleaned residues such as dust, stains or grease back to the surface of the printing platform, reducing the risk of secondary pollution of the printing platform.

[0012] (2) Through the setting of the scraping device, the U-shaped telescopic frame, connecting frame, U-shaped plate, slider, rotating rod, contact wheel, and U-shaped rod cooperate to drive the fan blades to rotate and generate an air current, and the arc plate will guide the air current generated by the fan blades downward, so that the air current blows towards the printing platform, thereby promoting the cooling and solidification of the residual printing material on the surface of the printing platform. The residual printing material becomes harder after cooling, reducing the viscosity of the printing material, facilitating the subsequent removal by the scraping plate, and avoiding problems such as damage to the surface of the printing platform or adhesion of materials during the removal of the residual printing material.

[0013] (3) Through the setting of the auxiliary device, the connecting frame, fixed plate, L-shaped scraping plate, L-shaped push column, and L-shaped inclined rod cooperate to drive the L-shaped scraping plate to scrape the residual printing material on the surface of the printing platform. The scraped printing material will accumulate on the top of the L-shaped scraping plate. At the same time, the L-shaped push column and L-shaped inclined rod cooperate to drive the printing material accumulated on the top of the L-shaped scraping plate to be poured into the collection box for collection, which is conducive to the subsequent centralized collection and treatment of the residual printing material on the surface of the printing platform. At the same time, the arc block will push the L-shaped push column to drive the L-shaped scraping plate to swing in a fluctuating manner up and down, which is conducive to the L-shaped scraping plate pouring the residual printing material on its top into the collection box. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the whole of the present invention Figure 1 ;

[0015] Figure 2 is a schematic diagram of the whole of the present invention Figure 2 ;

[0016] Figure 3 is a schematic diagram of the cleaning device of the present invention;

[0017] Figure 4 is a schematic diagram of the driving component of the present invention;

[0018] Figure 5 is a partial structural schematic diagram of the cleaning device of the present invention;

[0019] Figure 6 Partial sectional view of the auxiliary device of the present invention;

[0020] Figure 7 Schematic diagram of the scraping device of the present invention;

[0021] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at position A of the present invention;

[0022] Figure 9 For the present invention Figure 7 Enlarged schematic diagram of the structure at position B of the present invention.

[0023] In the figure: 1, printer main body; 2, printing platform; 3, cleaning device; 31, driving component; 311, return-shaped frame; 312, sliding rod; 313, screw rod; 314, moving block one; 315, moving block two; 32, U-shaped telescopic frame; 33, cotton brush roller; 34, friction wheel; 35, friction strip; 36, L-shaped column rod; 37, L-shaped frame one; 38, return-shaped plate; 39, L-shaped frame two; 4, auxiliary device; 41, connecting frame; 42, U-shaped plate; 43, contact wheel; 44, slider; 45, rotating rod; 46, flapping blade; 47, arc plate; 48, U-shaped rod; 5, scraping device; 51, fixing plate; 52, L-shaped shovel plate; 53, L-shaped inclined rod; 54, L-shaped push column; 55, collection box; 56, arc block. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1-9, an embodiment of the present invention is: a self-cleaning industrial 3D printer, including a printer main body 1. A printing platform 2 is arranged in the middle of the top of the printer main body 1. A cleaning device 3 is arranged on the top of the printer main body 1. The cleaning device 3 includes a driving component 31 and two friction strips 35. The driving component 31 is arranged on the top of the printer main body 1. The driving component 31 includes a U-shaped frame 311. The U-shaped frame 311 is fixed on the top of the printer main body 1. Grooves are opened on both sides of the top of the U-shaped frame 311. A slide bar 312 is fixed inside the groove on one side of the U-shaped frame 311. A second moving block 315 is slidably installed on the outside of the slide bar 312. A screw rod 313 is rotatably installed inside the groove on the other side of the U-shaped frame 311, and the screw rod 313 is driven by a motor. A first moving block 314 is threadedly connected to the outside of the screw rod 313. The second moving block 315 and the first moving block 314 are the moving ends of the driving component 31. The two friction strips 35 are respectively fixed on both sides of the inner wall of the U-shaped frame 311. The friction strips 35 are located in the middle of the U-shaped frame 311 and face the printing platform 2. A U-shaped telescopic frame 32 is fixed on the top of the moving end of the driving component 31. A cotton brush roller 33 is rotatably installed on the inner wall of the upper part of the telescopic end of the U-shaped telescopic frame 32. L-shaped brackets II 39 are fixed on both sides of the inner wall of the telescopic end of the U-shaped telescopic frame 32. A U-shaped plate 38 is fixed at the bottom of the L-shaped bracket II 39. L-shaped brackets I 37 are fixed on both sides of the inner wall of the fixed end of the U-shaped telescopic frame 32. A friction wheel 34 is rotatably installed on the outer wall of the L-shaped bracket I 37. An L-shaped column rod 36 is fixed on the side of the friction wheel 34 away from the L-shaped bracket I 37. One end of the L-shaped column rod 36 away from the friction wheel 34 is slidably installed inside the U-shaped plate 38. The bottom surface of the cotton brush roller 33 is on the same horizontal plane as the top surface of the printing platform 2. The top surface of the friction strip 35 is located on the movement track of the friction wheel 34, and both the top surface of the friction strip 35 and the outer wall of the friction wheel 34 are set as rough surfaces. Through the setting of the above structure, every time the U-shaped telescopic frame 32 moves forward, the telescopic end of the U-shaped telescopic frame 32 can make the cotton brush roller 33 closely contact the surface of the printing platform 2, ensuring that every corner of the printing platform 2 can be cleaned. The design of the cotton brush roller 33 closely adhering to the surface of the printing platform 2 helps to remove adhered dust, stains, grease or other residues, thereby achieving thorough cleaning. Through the setting of the above structure, every time the U-shaped telescopic frame 32 moves backward, the telescopic end of the U-shaped telescopic frame 32 drives the cotton brush roller 33 away from the printing platform 2, thus effectively avoiding the residues such as the already cleaned dust, stains or grease from being brought back to the surface of the printing platform 2 again, reducing the risk of secondary pollution of the printing platform 2.

[0026] When in use, after the printer main body 1 finishes printing and it is necessary to clean the surface of the printing platform 2, the staff sprays a cleaning agent on the surface of the printing platform 2. Then, the motor drives the screw 313 to rotate, and the screw 313 drives the first moving block 314 to drive the U-shaped telescopic frame 32 to reciprocate inside the groove of the loop-shaped frame 311. Moreover, the U-shaped telescopic frame 32 also drives the second moving block 315 to move along the outside of the slide bar 312. Each time the U-shaped telescopic frame 32 moves forward, when the fixed end of the U-shaped telescopic frame 32 drives the friction wheel 34 to move to the position of the friction strip 35 through the first L-shaped frame 37, the telescopic end of the U-shaped telescopic frame 32 synchronously drives the cotton brush roller 33 to move to the position of the printing platform 2. At the same time, under the frictional force between the friction strip 35 and the friction wheel 34, the friction strip 35 drives the friction wheel 34 to rotate. The friction wheel 34 rotates and drives the L-shaped column rod 36 to rotate downward. The L-shaped column rod 36 slides inside the loop-shaped plate 38 and drives the loop-shaped plate 38 to move downward. The loop-shaped plate 38 pulls the telescopic end of the U-shaped telescopic frame 32 downward through the second L-shaped frame 39, so as to ensure that the telescopic end of the U-shaped telescopic frame 32 can make the cotton brush roller 33 closely contact the surface of the printing platform 2, ensuring that every corner of the printing platform 2 can be cleaned. The design of the cotton brush roller 33 being closely attached to the surface of the printing platform 2 helps to remove the adhered dust, stains, grease or other residues, thus achieving thorough cleaning. Each time the U-shaped telescopic frame 32 moves backward, when the fixed end of the U-shaped telescopic frame 32 drives the friction wheel 34 to move to the position of the friction strip 35 through the first L-shaped frame 37, the friction strip 35 drives the friction wheel 34 to rotate in the reverse direction. The friction wheel 34 rotates and drives the L-shaped column rod 36 to rotate upward. The L-shaped column rod 36 slides inside the loop-shaped plate 38 and drives the loop-shaped plate 38 to move upward. The loop-shaped plate 38 pushes the telescopic end of the U-shaped telescopic frame 32 upward through the second L-shaped frame 39, so that the telescopic end of the U-shaped telescopic frame 32 drives the cotton brush roller 33 away from the printing platform 2, effectively avoiding the residues such as the already cleaned dust, stains or grease from being brought back to the surface of the printing platform 2 again, reducing the risk of secondary pollution of the printing platform 2. It should be noted that when the L-shaped column rod 36 slides to the limit position inside the loop-shaped plate 38, the rolling friction between the friction strip 35 and the friction wheel 34 will change to sliding friction.

[0027] Please refer to Figures 1-9, on the basis of the above embodiments, in another embodiment of the present invention, an auxiliary device 4 is provided on the front side of the U-shaped telescopic frame 32. The auxiliary device 4 includes four connecting frames 41 and two U-shaped rods 48. The four connecting frames 41 are respectively fixed to the top of the front side of the telescopic end of the U-shaped telescopic frame 32. A U-shaped plate 42 is fixed to the front side of the four connecting frames 41. Chutes are provided on both sides of the U-shaped plate 42. Sliders 44 are slidably installed inside the two chutes of the U-shaped plate 42. A rotating rod 45 is rotatably installed between the two sliders 44. Contact wheels 43 are fixed to both sides of the rotating rod 45. Fan blades 46 are evenly fixed to the outer wall of the middle part of the rotating rod 45 in a circumferential manner. Arc plates 47 are fixed to both sides of the U-shaped plate 42. The two U-shaped rods 48 are respectively fixed to both sides of the top of the U-shaped frame 311. The tops of the contact wheels 43 and the U-shaped rods 48 are both provided with rough surfaces. The contact wheels 43 are in contact with the tops of the U-shaped rods 48. Through the above structural arrangement, the contact wheels 43 drive the fan blades 46 to rotate through the rotating rod 45 and generate air flow, and the arc plates 47 will guide the air flow generated by the fan blades 46 downward, so that the air flow blows towards the printing platform 2, thereby promoting the cooling and solidification of the residual printing material on the surface of the printing platform 2. The residual printing material becomes harder after cooling, reducing the viscosity of the printing material, facilitating the subsequent removal by the scraping plate, and avoiding problems such as damage to the surface of the printing platform 2 or adhesion of materials during the removal of the residual printing material.

[0028] A scraping device 5 is provided at the bottom of the connecting frame 41. The scraping device 5 includes a fixing plate 51, a collection box 55, and two L-shaped inclined rods 53. The fixing plate 51 is fixed to the bottom of the connecting frame 41. An L-shaped scraping plate 52 is hinged to the bottom of the fixing plate 51, and a torsion spring is provided between the L-shaped scraping plate 52 and the fixing plate 51. L-shaped push columns 54 are fixed to both outer sides of the outer wall of the L-shaped scraping plate 52. The two L-shaped inclined rods 53 are respectively fixed to the side of the two U-shaped rods 48 close to each other. The collection box 55 is fixed to the top of the front side of the U-shaped frame 311. The side of the L-shaped push column 54 away from the L-shaped scraping plate 52 is in contact with the top of the L-shaped inclined rod 53. The front side of the L-shaped inclined rod 53 is inclined. The collection box 55 is located below the inclined part of the L-shaped inclined rod 53. Through the above structural arrangement, the L-shaped scraping plate 52 scrapes the residual printing material on the surface of the printing platform 2. The scraped printing material accumulates on the top of the L-shaped scraping plate 52. At the same time, when the L-shaped push column 54 moves to the inclined part of the L-shaped inclined rod 53, under the elastic force of the torsion spring corresponding to the L-shaped scraping plate 52, the L-shaped scraping plate 52 swings downward, and the printing material accumulated on the top of the L-shaped scraping plate 52 will pour into the collection box 55 for collection, so as to facilitate the subsequent centralized collection and treatment of the residual printing material on the surface of the printing platform 2.

[0029] A number of arc-shaped blocks 56 are evenly and equidistantly fixed to the inclined top of the L-shaped diagonal rod 53. Through the above structure, the arc-shaped blocks 56 will push the L-shaped push rod 54 to drive the L-shaped shovel plate 52 to swing in an up-and-down wave-like manner, so as to facilitate the L-shaped shovel plate 52 to pour the printing material remaining on its top into the collection box 55.

[0030] During use, when the U-shaped telescopic frame 32 moves, it will drive the U-shaped plate 42 to move along with it through the connecting frame 41. The U-shaped plate 42 drives the rotating rod 45 and the contact wheel 43 to move along with it through the slider 44. Under the frictional force between the contact wheel 43 and the U-shaped rod 48, the U-shaped rod 48 drives the contact wheel 43 to rotate. The contact wheel 43 drives the fan blade 46 to rotate through the rotating rod 45 and generates a flow of air, and the arc plate 47 will guide the air flow generated by the fan blade 46 downward, so that the air flow blows onto the printing platform 2, thereby promoting the cooling and solidification of the printing material remaining on the surface of the printing platform 2. The remaining printing material becomes harder after cooling, reducing the viscosity of the printing material, facilitating the subsequent removal by the shovel plate, and avoiding problems such as damage to the surface of the printing platform 2 or adhesion of the material during the removal of the remaining printing material. It should be noted that during the upward movement of the telescopic end of the U-shaped telescopic frame 32, under the elastic force of the spring corresponding to the slider 44, the slider 44 will always drive the contact wheel 43 to abut against the U-shaped rod 48 through the rotating rod 45.

[0031] At the same time, the connecting frame 41 drives the fixed plate 51 to move along with it. The fixed plate 51 drives the L-shaped shovel plate 52 and the L-shaped push rod 54 to move along with it. Since the L-shaped push rod 54 abuts against the horizontal branch rod part of the L-shaped diagonal rod 53, the L-shaped push rod 54 drives the L-shaped shovel plate 52 to be in a horizontal state. When the L-shaped shovel plate 52 moves to the printing platform 2, the L-shaped shovel plate 52 will scrape the printing material remaining on the surface of the printing platform 2. The scraped printing material will accumulate on the top of the L-shaped shovel plate 52. When the L-shaped push rod 54 moves to the inclined part of the L-shaped diagonal rod 53, the horizontal branch rod part of the L-shaped diagonal rod 53 no longer restricts the position of the L-shaped shovel plate 52 through the L-shaped push rod 54. Under the elastic force of the torsion spring corresponding to the L-shaped shovel plate 52, the L-shaped shovel plate 52 swings downward, and the printing material accumulated on the top of the L-shaped shovel plate 52 will be poured into the collection box 55 for collection, so as to facilitate the subsequent centralized collection and treatment of the printing material remaining on the surface of the printing platform 2; at the same time, when the L-shaped push rod 54 moves to the position of the arc-shaped block 56, the arc-shaped block 56 will push the L-shaped push rod 54 to drive the L-shaped shovel plate 52 to swing in an up-and-down wave-like manner, so as to facilitate the L-shaped shovel plate 52 to pour the printing material remaining on its top into the collection box 55.

[0032] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An automatic cleaning industrial 3D printer, comprising a printer main body (1), wherein a printing platform (2) is arranged in the middle of the top of the printer main body (1), and is characterized in that: A cleaning device (3) is provided on the top of the printer main body (1). The cleaning device (3) includes a driving assembly (31) and two friction strips (35). The driving assembly (31) is arranged on the top of the printer main body (1). The driving assembly (31) includes a U-shaped frame (311) fixed to the top of the printer main body (1). The two friction strips (35) are respectively fixed to both sides of the inner wall of the U-shaped frame (311). The top of the mobile end of the driving assembly (31) is fixed with a U-shaped telescopic frame (32). A cotton brush roller (33) is rotatably installed on the inner wall of the upper part of the telescopic end of the U-shaped telescopic frame (32). On both sides of the inner wall of the telescopic end of the U-shaped telescopic frame (32), L-shaped brackets II (39) are fixed. A U-shaped plate (38) is fixed to the bottom of the L-shaped bracket II (39). On both sides of the inner wall of the fixed end of the U-shaped telescopic frame (32), L-shaped brackets I (37) are fixed. A friction wheel (34) is rotatably installed on the outer wall of the L-shaped bracket I (37). An L-shaped column rod (36) is fixed to the side of the friction wheel (34) away from the L-shaped bracket I (37). The end of the L-shaped column rod (36) away from the friction wheel (34) is slidably installed inside the U-shaped plate (38).

2. The self-cleaning industrial 3D printer according to claim 1, wherein: Grooves are provided on both sides of the top of the U-shaped frame (311). A slide bar (312) is fixed inside the groove on one side of the U-shaped frame (311). A second moving block (315) is slidably installed on the outside of the slide bar (312). A screw rod (313) is rotatably installed inside the groove on the other side of the U-shaped frame (311) and is driven by a motor. A first moving block (314) is threadedly connected to the outside of the screw rod (313). The second moving block (315) and the first moving block (314) are the mobile end of the driving assembly (31).

3. The self-cleaning industrial 3D printer according to claim 1, wherein: The friction strips (35) are located at the middle position of the U-shaped frame (311) and face the printing platform (2).

4. The self-cleaning industrial 3D printer according to claim 1, characterized in that: The bottom surface of the cotton brush roller (33) is on the same horizontal plane as the top surface of the printing platform (2). The top surface of the friction strip (35) is located on the movement track of the friction wheel (34), and both the top surface of the friction strip (35) and the outer wall of the friction wheel (34) are set to be rough surfaces.

5. The self-cleaning industrial 3D printer according to claim 1, characterized in that: An auxiliary device (4) is provided on the front side of the U-shaped telescopic frame (32). The auxiliary device (4) includes four connecting frames (41) and two U-shaped rods (48). The four connecting frames (41) are respectively fixed to the top of the front side of the telescopic end of the U-shaped telescopic frame (32). A U-shaped plate (42) is fixed to the front sides of the four connecting frames (41). Chute grooves are provided on both sides of the U-shaped plate (42). Sliders (44) are slidably installed in the two chute grooves of the U-shaped plate (42). A rotating rod (45) is rotatably installed between the two sliders (44). Contact wheels (43) are fixed to both sides of the rotating rod (45). Flapping blades (46) are circumferentially and evenly fixed to the outer wall of the middle part of the rotating rod (45). Arc plates (47) are fixed to both sides of the U-shaped plate (42). The two U-shaped rods (48) are respectively fixed to both sides of the top of the loop-shaped frame (311).

6. The self-cleaning industrial 3D printer according to claim 5, characterized in that: The tops of the contact wheels (43) and the U-shaped rods (48) are both provided with rough surfaces, and the contact wheels (43) are in contact with the tops of the U-shaped rods (48).

7. The self-cleaning industrial 3D printer according to claim 5, wherein: A scraping device (5) is provided at the bottom of the connecting frame (41). The scraping device (5) includes a fixing plate (51), a collection box (55), and two L-shaped inclined rods (53). The fixing plate (51) is fixed to the bottom of the connecting frame (41). An L-shaped shoveling plate (52) is hinged to the bottom of the fixing plate (51), and a torsion spring is provided between the L-shaped shoveling plate (52) and the fixing plate (51). L-shaped pushing columns (54) are fixed to both outer walls of the L-shaped shoveling plate (52). The two L-shaped inclined rods (53) are respectively fixed to one side of the two U-shaped rods (48) close to each other. The collection box (55) is fixed to the top of the front side of the loop-shaped frame (311). The side of the L-shaped pushing column (54) away from the L-shaped shoveling plate (52) is in contact with the top of the L-shaped inclined rod (53). The front side of the L-shaped inclined rod (53) is inclined, and the collection box (55) is located below the inclined part of the L-shaped inclined rod (53).

8. The self-cleaning industrial 3D printer according to claim 7, wherein: A number of arc blocks (56) are evenly and equidistantly fixed to the inclined top of the L-shaped inclined rod (53).

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