3D printing dust treatment equipment for metal printing

Abstract

The invention relates to the technical field of dust treatment, in particular to metal printing 3D printing dust treatment equipment which comprises printing equipment, a printing table arranged on the inner side of the printing equipment and a powder coating printing device arranged above the printing table, and a cleaning assembly located above the powder coating printing device is arranged on the inner side of the printing equipment. A connecting pipe is arranged on one side of the cleaning assembly, the end, away from the cleaning assembly, of the connecting pipe is fixedly connected with a dust suction box communicating with the connecting pipe, a collecting assembly is arranged below the dust suction box, and fans fixedly connected with the dust suction box and penetrating through the dust suction box are symmetrically arranged on the front side and the rear side of the dust suction box. Through the arrangement of the cleaning assembly, the sliding rail, the first sliding block, the sliding rod, the second sliding block, the telescopic rod, the cleaning frame, the non-return assembly, a baffle, a barrier strip, a spring, a motor, a brush, a connecting pipe, a dust suction box, a fan and a filter plate, dust at the dead angle position of the metal part can be cleaned, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dust treatment, and in particular to a 3D printing dust treatment device for metal printing. Background Art

[0002] Metal 3D printing is a revolutionary manufacturing technology that creates three-dimensional objects by depositing metal dust or wire layer by layer. This technology uses computer-aided design files to accurately convert complex geometric shapes into solid parts. Common metal 3D printing technologies include selective laser melting (SLM), electron beam melting (EBM) and directed energy deposition (DED). These methods can not only produce parts with complex internal structures, but also use a variety of metal materials, such as titanium alloys, aluminum alloys, stainless steel and high-temperature alloys. Metal 3D printing is widely used in aerospace, medical, automotive and energy fields because it can reduce material waste, shorten production cycles and improve product performance and lightweight. In addition, this technology also supports customized production, making small-batch, multi-variety manufacturing more economical and efficient. After metal 3D printing is completed, the residual metal dust needs to be processed to reduce the residual dust on metal parts.

[0003] The existing metal dust treatment method is usually that the operator puts his hand into the glove box to clean the dust on the surface of the metal part. After manual cleaning, the metal part is taken out and the remaining dust on the surface of the metal part is sucked away by a vacuum cleaner. This method is laborious, and some dust attached to the dead corners of the metal part is not easy to clean. When the vacuum cleaner is full of metal dust and poured out, the dust is easy to escape into the air, which is difficult to collect and will affect the health of the staff. Therefore, a 3D printing dust treatment device for metal printing is proposed to address the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a 3D printing dust treatment device for metal printing to solve the problems that the existing metal dust treatment method proposed in the above background technology is relatively laborious, the dust in the dead corners is difficult to clean, and the dust is easily dispersed into the air when pouring out the metal dust.

[0005] To achieve the above object, the present invention provides the following technical solutions: A 3D printing dust treatment device for metal printing comprises a printing device, a printing table arranged inside the printing device and a powder coating printing device arranged above the printing table, a cleaning component located above the powder coating printing device is arranged inside the printing device, a connecting pipe is arranged on one side of the cleaning component, a dust collection box which is connected with the connecting pipe is fixedly connected to one end of the connecting pipe away from the cleaning component, a collecting component is arranged below the dust collection box, fans which are fixedly connected with the dust collection box and pass through the dust collection box are symmetrically arranged on the front and rear sides of the dust collection box, a vertically arranged hydraulic cylinder is fixedly connected to the front side of the dust collection box, a pressure plate is fixedly connected to the bottom end of the output shaft of the hydraulic cylinder, slots which pass through the dust collection box are symmetrically arranged on the top of the dust collection box, and the A limit rod is symmetrically arranged vertically and fixedly connected to the inner side of the dust collection box below the slot, a filter plate is snap-connected to the inner side of the slot, and vertical limit grooves are symmetrically provided on the left and right sides of the filter plate, a fixing plate is fixedly connected to the top of the filter plate, and a sealing ring is fixedly connected to the bottom of the fixing plate, a sealing groove is provided on the outside of the slot at the top of the dust collection box, and one side of the sealing groove is symmetrically provided with fixing blocks fixedly connected to the top of the dust collection box in groups of two, one group of the fixing blocks is rotatably connected to the top of a positioning plate, a circular hole is provided inside the positioning plate that penetrates the positioning plate from top to bottom, and a threaded groove is provided on the top of the other group of the fixing blocks, and a positioning bolt spirally connected to the threaded groove is provided on the inner side of the circular hole.

[0006] Preferably, the cleaning component includes a slide rail which is horizontally symmetrically arranged and fixedly connected to the inner side of the printing device, a first slider which is symmetrically arranged is slidably connected to the inner side of the slide rail, a horizontally arranged slide rod is fixedly connected between the two first slide rods, a second slider is slidably connected to the outer side of the slide rod, a vertically arranged telescopic rod is fixedly connected to the bottom end of the second slider, a cleaning frame is fixedly connected to the bottom end of the telescopic rod output shaft, a non-reverse assembly is provided on the inner side of the cleaning frame, a motor is provided under the non-reverse assembly, and a brush is spirally connected to the bottom end of the motor output shaft.

[0007] Preferably, the anti-return assembly includes a baffle plate symmetrically arranged and rotatably connected to the inner side of the cleaning frame, a baffle bar symmetrically provided on the bottom end of the baffle plate and fixedly connected to the inner side of the cleaning frame, a spring obliquely arranged is fixedly connected to the top end of the baffle plate, and the end of the spring away from the baffle plate is fixedly connected to the inner side of the cleaning frame.

[0008] Preferably, the collecting assembly includes a collecting box fixedly connected to the bottom end of the dust box and communicating with the dust box, a drawer penetrating the collecting box is slidably connected to the inner side of the collecting box, a symmetrically arranged sliding frame is fixedly connected to the right side of the drawer, wheel grooves are symmetrically provided at the bottom end of the drawer, clamping assemblies are symmetrically provided on the front and rear sides of the collecting box, a symmetrically arranged bottom plate is fixedly connected to the right side of the collecting box, a plurality of evenly distributed pulleys are fixedly connected to the top of the bottom plate, a cartridge is fixedly connected to the end of the bottom plate away from the collecting box, and a card block is engaged with the inner side of the cartridge.

[0009] Preferably, the clamping assembly includes a hook rotatably connected to the outside of the collection box, the end of the hook away from the collection box is fixedly connected to a connecting plate, the inside of the connecting plate is spirally connected with a clamping bolt that passes through the connecting plate, and one end of the clamping bolt is fixedly connected to the clamping plate.

[0010] Preferably, one end of the connecting pipe away from the dust box is fixedly connected to the top of the cleaning frame and passes through the cleaning frame, the bottom end of the baffle is tightly fitted with the top of the baffle bar, and there are multiple springs, which are evenly distributed on the top of the baffle.

[0011] Preferably, the inner side of the wheel groove fits tightly with the outer side of the pulley, the side of the clamping plate away from the clamping bolt fits tightly with the right side of the drawer, there are multiple fans, and the fans are evenly distributed on the front and back sides of the dust collector box, the connection between the limit rod and the limit groove is a sliding connection, the outer side of the sealing ring fits tightly with the inner side of the sealing groove, and the bottom end of the positioning plate fits tightly with the top end of the fixed plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by providing a cleaning component, a slide rail, a first slider, a slide rod, a second slider, a telescopic rod, a cleaning frame, a non-return component, a baffle, a baffle bar, a spring, a motor, a brush, a connecting pipe, a dust suction box, a fan and a filter plate, the dust in the dead corners of the metal parts can be cleaned to improve the work efficiency. When it is necessary to clean the dust on the metal parts, the fan, the motor, the telescopic rod, the slide rail and the slide rod are started. At this time, the first slider and the second slider slide on the slide rail and the slide rod respectively, and the fan discharges the air inside the dust suction box and the cleaning frame to form a negative pressure environment inside the dust suction box. At this time, the baffle is rotated by force, the spring is compressed by force, the output end of the telescopic rod extends to drive the cleaning frame to descend, and the output end of the motor rotates to drive the brush to break up the dust in the dead corners of the surface of the metal parts. The dust enters the inside of the dust suction box through the cleaning frame and the connecting plate and is intercepted by the filter plate, thereby completing the cleaning of the dust on the surface of the metal parts. 2. In the present invention, the collecting component, collecting box, drawer, sliding frame, wheel groove, clamping component, hook, connecting plate, clamping bolt, clamping plate, bottom plate, pulley, cartridge, clamping block, fan, hydraulic cylinder and clamping plate are set, which can compact the metal dust, reduce the space occupied by it, and prevent the metal dust from escaping into the air and polluting the environment when it is taken out. After the metal dust enters the dust collection box, it falls into the drawer inside the collection box. After a certain amount of metal dust is collected, the clamping bolt is loosened and the drawer is pulled out. At this time, the pulley rotates on the inside of the wheel groove, and then the clamping block is pulled out from the inside of the cartridge, so that the sliding frame and the cartridge are vertically aligned and the clamping block is inserted into the inside of the sliding frame and the cartridge. In the next step, the hydraulic cylinder is started, and the output shaft of the hydraulic cylinder drives the clamping plate to descend to compact the metal dust. Finally, the clamping block is pulled out, the drawer is pulled out and reversed, and the compacted metal dust plate is poured out, and the metal dust plate can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure at A; Figure 3 It is a schematic diagram of the cross-sectional structure of the printing device of the present invention; Figure 4 It is a schematic diagram of the structure of the cleaning component of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the cleaning frame of the present invention; Figure 6 It is a schematic diagram of the local structure of the present invention; Figure 7 It is a schematic diagram of the drawer structure of the present invention; Figure 8 It is a schematic diagram of the installation structure of the filter plate of the present invention; Fig. 9 This is a schematic diagram of the B installation structure of the present invention 8; Fig.10 It is a schematic diagram of the filter plate structure of the present invention.

[0014] In the figure: 1. Printing device; 2. Printing table; 3. Coating printing device; 4. Cleaning component; 41. Slide rail; 42. First slider; 43. Slide rod; 44. Second slider; 45. Telescopic rod; 46. Cleaning frame; 47. Check assembly; 471. Baffle; 472. Baffle bar; 473. Spring; 48. Motor; 49. Brush; 5. Connecting pipe; 6. Dust collection box; 7. Collecting component; 71. Collecting box; 72. Drawer; 73. Slide frame; 74. Wheel groove; 75. Clamping assembly; 751, hook; 752, connecting plate; 753, clamping bolt; 754, clamping plate; 76, bottom plate; 77, pulley; 78, cartridge; 79, clamping block; 8, fan; 9, hydraulic cylinder; 10, pressure plate; 11, slot; 12, limiting rod; 13, filter plate; 14, limiting groove; 15, fixing plate; 16, sealing ring; 17, sealing groove; 18, fixing block; 19, positioning plate; 20, round hole; 21, threaded groove; 22, positioning bolt. DETAILED DESCRIPTION Example

[0015] See also Figure 1-10 , the present invention provides a technical solution: A 3D printing dust treatment device for metal printing, comprising a printing device 1, a printing table 2 arranged inside the printing device 1 and a powder coating printing device 3 arranged above the printing table 2, a cleaning component 4 located above the powder coating printing device 3 is arranged inside the printing device 1, a connecting pipe 5 is arranged on one side of the cleaning component 4, a dust collection box 6 which is connected with the connecting pipe 5 is fixedly connected to one end of the connecting pipe 5 away from the cleaning component 4, a collecting component 7 is arranged below the dust collection box 6, fans 8 which are fixedly connected with the dust collection box 6 and pass through the dust collection box 6 are symmetrically arranged on the front and rear sides of the dust collection box 6, a vertically arranged hydraulic cylinder 9 is fixedly connected to the front side of the dust collection box 6, a pressing plate 10 is fixedly connected to the bottom end of the output shaft of the hydraulic cylinder 9, a slot 11 which passes through the dust collection box 6 is symmetrically opened at the top of the dust collection box 6, and a fan 8 which is fixedly connected with the dust collection box 6 and passes through the dust collection box 6 is symmetrically arranged below the slot 11 A limit rod 12 is vertically arranged and fixedly connected to the inner side of the dust collection box 6, a filter plate 13 is snap-connected to the inner side of the slot 11, and vertically arranged limit grooves 14 are symmetrically provided on the left and right sides of the filter plate 13, a fixing plate 15 is fixedly connected to the top of the filter plate 13, and a sealing ring 16 is fixedly connected to the bottom of the fixing plate 15, a sealing groove 17 opened at the top of the dust collection box 6 is provided on the outer side of the slot 11, and two fixing blocks 18 are symmetrically provided on one side of the sealing groove 17, and the fixing blocks 18 are fixedly connected to the top of the dust collection box 6 in a group, wherein a group of the fixing blocks 18 is rotatably connected to the top of a positioning plate 19, and a circular hole 20 is provided inside the positioning plate 19 and penetrates the positioning plate 19 from top to bottom, and a threaded groove 21 is provided on the top of the other group of the fixing blocks 18, and a positioning bolt 22 spirally connected to the threaded groove 21 is provided on the inner side of the circular hole 20.

[0016] The cleaning component 4 includes a slide rail 41 which is horizontally symmetrically arranged and fixedly connected to the inner side of the printing device 1, a first slider 42 which is symmetrically arranged is slidably connected to the inner side of the slide rail 41, a horizontally arranged slide bar 43 is fixedly connected between the two first sliders 42, a second slider 44 is slidably connected to the outer side of the slide bar 43, a vertically arranged telescopic rod 45 is fixedly connected to the bottom end of the second slider 44, a cleaning frame 46 is fixedly connected to the bottom end of the output shaft of the telescopic rod 45, a non-return component 47 is provided inside the cleaning frame 46, a motor 48 is provided below the non-return component 47, a brush 49 is spirally connected to the bottom end of the output shaft of the motor 48, and the setting of the cleaning component 4 can clean the dust in the dead corner of the surface of the metal part, and the non-return component 47 includes a symmetrically arranged and rotatably connected inner side of the cleaning frame 46. The baffle 471 has a baffle bar 472 symmetrically provided at the bottom end of the baffle 471 and fixedly connected to the inner side of the cleaning frame 46. The top of the baffle 471 is fixedly connected to an inclined spring 473. The end of the spring 473 away from the baffle 471 is fixedly connected to the inner side of the cleaning frame 46. The non-return assembly 47 can prevent the metal dust inside the connecting pipe 5 and the dust box 6 from flowing back to the inner side of the printing device 1. The collecting assembly 7 includes a collecting box 71 fixedly connected to the bottom end of the dust box 6 and connected to the dust box 6. A drawer 72 that penetrates the collecting box 71 is slidably connected to the inner side of the collecting box 71. A symmetrically arranged sliding frame 73 is fixedly connected to the right side of the drawer 72. Wheel grooves 74 are symmetrically provided at the bottom end of the drawer 72. Pressing assemblies 75 are symmetrically provided on the front and rear sides of the collecting box 71. A symmetrically arranged bottom plate 76 is fixedly connected to the right side, a plurality of evenly distributed pulleys 77 are fixedly connected to the top of the bottom plate 76, a cartridge 78 is fixedly connected to the end of the bottom plate 76 away from the collection box 71, a card block 79 is engaged and connected to the inner side of the cartridge 78, the arrangement of the collecting assembly 7 and its connecting assembly can make the collection and removal of metal dust more convenient, the clamping assembly 75 includes a hook 751 rotatably connected to the outside of the collection box 71, the end of the hook 751 away from the collection box 71 is fixedly connected to a connecting plate 752, a clamping bolt 753 that passes through the connecting plate 752 is spirally connected inside the connecting plate 752, one end of the clamping bolt 753 is fixedly connected to a clamping plate 754, and the arrangement of the clamping assembly 75 can firmly fix the drawer 72 in the collection box 71 The air tightness of the drawer 72 is improved. The end of the connecting pipe 5 away from the dust box 6 is fixedly connected to the top of the cleaning frame 46 and passes through the cleaning frame 46. The bottom end of the baffle 471 is tightly fitted with the top of the baffle bar 472. There are multiple springs 473, and the springs 473 are evenly distributed on the top of the baffle 471. The arrangement of multiple springs 473 can reset the baffle 471 when the fan 8 is closed. The inner side of the wheel groove 74 is tightly fitted with the outer side of the pulley 77. The side of the clamping plate 754 away from the clamping bolt 753 is tightly fitted with the right side of the drawer 72. There are multiple fans 8, and the fans 8 are evenly distributed on the front and back sides of the dust box 6. The connection mode of the limit rod 12 and the limit groove 14 is a sliding connection. The outer side of the sealing ring 16 is tightly fitted with the inner side of the sealing groove 17.The bottom end of the positioning plate 19 is tightly fitted with the top end of the fixing plate 15.

[0017] Workflow: Power on the device before use. First, install the various components on the device, insert the drawer 72 into the inner side of the collection box 71, then reverse the hook 751 and tighten the clamping bolt 753 inside the connecting plate 752 to make the clamping plate 754 fit tightly with the drawer 72, and limit the drawer 72. The setting of the clamping assembly 75 can firmly fix the drawer 72 on the inner side of the collection box 71, thereby improving the air tightness of the drawer 72. Next, align the limiting groove 14 on the outer side of the filter plate 13 with the limiting rod 12 and insert the filter plate 13 into the inner side of the slot 11, then reverse the positioning plates 19 on the two sets of fixing blocks 18, insert the positioning bolts 22 into the round holes 20 and screw them into the inner sides of the threaded grooves 21 at the top ends of the other two sets of fixing blocks 18. At this time, the bottom end of the positioning plate 19 is aligned with the fixing plate 1 5, the outer side of the sealing ring 16 and the inner side of the sealing groove 17 are tightly fitted, and the filter plate 13 can be fixed. When the filter plate 13 is blocked or damaged after being used for too long, the positioning bolt 22 can be unscrewed to remove the filter plate 13 for cleaning or replacement. When metal 3D printing is performed, the powder coating printing device 3 inside the printing device 1 is started, and the powder coating printing device 3 can perform powder coating printing on the top of the printing table 2. After the printing is completed, when the dust on the metal parts needs to be cleaned, the fan 8, the motor 48, the telescopic rod 45, the slide rail 41 and the slide bar 43 are started. At this time, the first slide block 42 and the second slide block 44 slide on the slide rail 41 and the slide bar 43 respectively, and the fan 8 discharges the air inside the dust box 6 and the cleaning frame 46 to form a negative pressure environment inside. The plate 471 is rotated under force to disengage from the baffle bar 472, the spring 473 is compressed under force, the output end of the telescopic rod 45 extends to drive the cleaning frame 46 to descend, and the output end of the motor 48 rotates to drive the brush 49 to break up the dust in the dead corners of the metal surface, and the dust enters the inside of the dust box 6 through the cleaning frame 46 and the connecting plate 752 and is intercepted by the filter plate 13, thereby completing the cleaning of the dust on the surface of the metal part. After the cleaning is completed, the fan 8 is turned off. At this time, the baffle 471 is no longer under force, and the spring 473 resets to drive the baffle 471 to reset, and the baffle 471 and the baffle bar 472 are tightly fitted again. The non-return component 47 can prevent the metal dust inside the connecting pipe 5 and the dust box 6 from flowing back to the inside of the printing device 1, and the setting of the cleaning component 4 can clean the dust in the dead corners of the metal surface. After the metal dust enters the dust collection box 6, it falls into the drawer 72 inside the collection box 71. After a certain amount of metal dust is collected, the clamping bolt 753 is loosened and the drawer 72 is pulled out. At this time, the pulley 77 at the top of the bottom plate 76 rotates inside the wheel groove 74, and then the block 79 is pulled out from the inside of the cartridge 78, so that the slide frame 73 and the cartridge 78 are vertically aligned and the block 79 is inserted into the inside of the slide frame 73 and the cartridge 78. The next step is to start the hydraulic cylinder 9, and the output shaft of the hydraulic cylinder 9 drives the pressure plate 10 to descend to compact the metal dust. Finally, the block 79 is pulled out, the drawer 72 is pulled out and reversed, and the compacted metal dust plate is poured out, and the metal dust plate can be recycled. The setting of the collecting component 7 and its connecting component can make the collection and removal of metal dust more convenient.

[0018] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A 3D printing dust treatment device for metal printing, comprising a printing device (1), a printing table (2) arranged inside the printing device (1), and a powder coating printing device (3) arranged above the printing table (2), characterized in that: The printing device (1) is provided with a cleaning assembly (4) located above the powder coating printing device (3) on the inner side, a connecting pipe (5) is provided on one side of the cleaning assembly (4), and a dust box (6) which is connected to the connecting pipe (5) is fixedly connected to one end of the connecting pipe (5) away from the cleaning assembly (4), and a collecting assembly (7) is provided below the dust box (6), and fans (8) which are fixedly connected to the dust box (6) and pass through the dust box (6) are symmetrically provided on the front and rear sides of the dust box (6), a vertically arranged hydraulic cylinder (9) is fixedly connected to the front side of the dust box (6), and a pressure plate (10) is fixedly connected to the bottom end of the output shaft of the hydraulic cylinder (9), and a slot (11) which passes through the dust box (6) is symmetrically provided at the top of the dust box (6), and a limit rod (12) which is vertically arranged and fixedly connected to the inner side of the dust box (6) is symmetrically provided below the slot (11), and the slot (11) is symmetrically provided with a limit rod (12) which is fixedly connected to the inner side of the dust box (6), and the slot (1 1) A filter plate (13) is snap-fittedly connected to the inner side, and vertically arranged limit grooves (14) are symmetrically provided on the left and right sides of the filter plate (13), and a fixing plate (15) is fixedly connected to the top of the filter plate (13), and a sealing ring (16) is fixedly connected to the bottom of the fixing plate (15), and a sealing groove (17) is provided on the outer side of the slot (11) and is opened at the top of the dust collection box (6), and two fixing blocks (18) are symmetrically provided on one side of the sealing groove (17) and are fixedly connected to the top of the dust collection box (6) in a group, wherein a positioning plate (19) is rotatably connected to the top of one group of the fixing blocks (18), and a circular hole (20) is provided inside the positioning plate (19) and penetrates the positioning plate (19) from top to bottom, and a threaded groove (21) is provided on the top of the other group of the fixing blocks (18), and a positioning bolt (22) is provided on the inner side of the circular hole (20) and is spirally connected to the threaded groove (21).

2. The 3D printing dust treatment device for metal printing according to claim 1, characterized in that: The cleaning component (4) comprises a slide rail (41) which is symmetrically arranged horizontally and fixedly connected to the inner side of the printing device (1); a symmetrically arranged first slider (42) is slidably connected to the inner side of the slide rail (41); a horizontally arranged slide bar (43) is fixedly connected between the two first sliders (42); a second slider (44) is slidably connected to the outer side of the slide bar (43); a vertically arranged telescopic rod (45) is fixedly connected to the bottom end of the second slider (44); a cleaning frame (46) is fixedly connected to the bottom end of the output shaft of the telescopic rod (45); a non-return component (47) is provided on the inner side of the cleaning frame (46); a motor (48) is provided below the non-return component (47); and a brush (49) is spirally connected to the bottom end of the output shaft of the motor (48).

3. The 3D printing dust treatment device for metal printing according to claim 2, characterized in that: The anti-return assembly (47) comprises a baffle (471) symmetrically arranged and rotatably connected to the inner side of the cleaning frame (46); a baffle bar (472) symmetrically arranged and fixedly connected to the inner side of the cleaning frame (46) is provided at the bottom end of the baffle (471); a spring (473) arranged obliquely is fixedly connected to the top end of the baffle (471); an end of the spring (473) away from the baffle (471) is fixedly connected to the inner side of the cleaning frame (46).

4. The 3D printing dust treatment device for metal printing according to claim 1, characterized in that: The collecting assembly (7) comprises a collecting box (71) fixedly connected to the bottom end of the dust collecting box (6) and connected to the dust collecting box (6); a drawer (72) penetrating the collecting box (71) is slidably connected to the inner side of the collecting box (71); a sliding frame (73) symmetrically arranged is fixedly connected to the right side of the drawer (72); wheel grooves (74) are symmetrically provided at the bottom end of the drawer (72); pressing assemblies (75) are symmetrically provided on the front and rear sides of the collecting box (71); a bottom plate (76) symmetrically arranged is fixedly connected to the right side of the collecting box (71); a plurality of evenly distributed pulleys (77) are fixedly connected to the top end of the bottom plate (76); a clamping cylinder (78) is fixedly connected to the end of the bottom plate (76) away from the collecting box (71); a clamping block (79) is engaged and connected to the inner side of the clamping cylinder (78).

5. The 3D printing dust treatment device for metal printing according to claim 4, characterized in that: The clamping assembly (75) comprises a hook (751) rotatably connected to the outside of the collection box (71); one end of the hook (751) away from the collection box (71) is fixedly connected to a connecting plate (752); a clamping bolt (753) passing through the connecting plate (752) is spirally connected inside the connecting plate (752); one end of the clamping bolt (753) is fixedly connected to a clamping plate (754).

6. A 3D printing dust treatment device for metal printing according to claims 1 and 3, characterized in that: One end of the connecting pipe (5) away from the dust collection box (6) is fixedly connected to the top of the cleaning frame (46) and is connected to the cleaning frame (46); the bottom end of the baffle (471) is tightly fitted with the top of the baffle bar (472); there are a plurality of springs (473), and the springs (473) are evenly distributed on the top of the baffle (471).

7. A 3D printing dust treatment device for metal printing according to claims 4 and 5, characterized in that: The inner side of the wheel groove (74) is tightly fitted with the outer side of the pulley (77); the side of the clamping plate (754) away from the clamping bolt (753) is tightly fitted with the right side of the drawer (72); there are multiple fans (8), and the fans (8) are evenly distributed on the front and rear sides of the dust collection box (6); the connection between the limit rod (12) and the limit groove (14) is a sliding connection; the outer side of the sealing ring (16) is tightly fitted with the inner side of the sealing groove (17); and the bottom end of the positioning plate (19) is tightly fitted with the top end of the fixing plate (15).

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