CN220480249U - Metal 3D printer powder recovery unit - Google Patents

Abstract

The utility model provides a metal 3D printer powder recovery device, which belongs to the technical field of 3D printer related equipment and comprises a forming chamber shell, wherein the lower end of the forming chamber shell is fixedly connected with a U-shaped plate, a lifting assembly is arranged on the U-shaped plate, a cylinder is arranged on the lifting assembly, the upper end of the bottom wall of the U-shaped plate is fixedly connected with an air bag, and the air bag is provided with a first telescopic assembly and a second telescopic assembly. The utility model solves the problems that the existing metal 3D printer powder recovery device cannot scrape and clean the metal powder around the cylinder opening of the forming cylinder of the metal 3D printer, and the powder is easy to accumulate around the cylinder opening of the forming cylinder, thereby influencing the working efficiency of the metal 3D printer, being inconvenient to recover the metal powder left after printing in the forming chamber of the metal 3D printer and causing the waste of powder printing materials.

Description

Metal 3D printer powder recovery unit

Technical field:

the utility model belongs to the technical field of 3D printer related equipment, and particularly relates to a powder recovery device of a metal 3D printer.

The background technology is as follows:

3D printing, a type of rapid prototyping technology, also known as additive manufacturing, is a technology that uses a bondable material such as powdered metal or plastic as a basis for a digital model file to construct an object by means of layer-by-layer printing, and 3D printing is usually implemented by using a digital technology material printer, and is often used for manufacturing models in the fields of mold manufacturing, industrial design, etc., and then gradually used for direct manufacturing of some products, and there are parts printed by using this technology, which is applied in the fields of jewelry, footwear, industrial design, construction, engineering and construction, automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms, and others.

The prior art CN110976467B discloses a metal 3D printer powder recovery device, which comprises a frame, a traversing mechanism and a powder sucking mechanism, wherein the traversing mechanism is arranged on the upper part of the frame, and the powder sucking mechanism is arranged on the side part of the traversing mechanism. The device can't strike off the clearance to the metal powder around the shaping jar mouth of metal 3D printer, easily leads to powder to gather around the shaping jar mouth to influence the work efficiency of metal 3D printer, be inconvenient for retrieving the printing remaining metal powder in the shaping room of metal 3D printer, caused the waste of powder printing material.

The utility model comprises the following steps:

the utility model provides a metal 3D printer powder recovery device, which aims to solve the problems that the existing metal 3D printer powder recovery device cannot scrape and clean metal powder around a cylinder opening of a forming cylinder of a metal 3D printer, powder is easy to accumulate around the cylinder opening of the forming cylinder, the working efficiency of the metal 3D printer is affected, the printing of residual metal powder in a forming chamber of the metal 3D printer is inconvenient to recover, and powder printing materials are wasted.

The embodiment of the utility model provides a metal 3D printer powder recovery device, which comprises a forming chamber shell, wherein the lower end of the forming chamber shell is fixedly connected with a U-shaped plate, the lower end of the forming chamber shell is provided with a forming cylinder and a powder cylinder, the forming cylinder is positioned at the left end of the powder cylinder, a placing groove and a long groove are reserved on the side wall of the forming chamber shell, a through groove is formed in the bottom wall of the forming chamber shell, the U-shaped plate is positioned at the lower end of the through groove, the forming cylinder and the powder cylinder are respectively positioned at the left end and the right end of the U-shaped plate, the U-shaped plate is provided with a lifting assembly, the lifting assembly is provided with a cylinder, the upper end of the bottom wall of the U-shaped plate is fixedly connected with an air bag, and the air bag is provided with a first telescopic assembly and a second telescopic assembly.

Further, a first mounting groove and a second mounting groove are formed in the U-shaped plate, the first mounting groove is located at the upper end of the second mounting groove, and a fixing block is fixedly connected to the upper end of the bottom wall of the U-shaped plate.

Through adopting above-mentioned technical scheme, the installation of lifting unit is convenient for to U template.

Further, the lifting assembly comprises a screw rod arranged in the first mounting groove, a motor is connected to the lower end of the screw rod in a transmission mode, the motor is arranged in the second mounting groove, a threaded sleeve is connected to the screw rod in a rotating mode, a connecting block I is fixedly connected to one end, close to the cylinder, of the threaded sleeve, and the other end of the connecting block I is fixedly connected with the cylinder.

Through adopting above-mentioned technical scheme, the starter motor, motor drive lead screw rotates, and the lead screw drives the thread bush and reciprocates along the lead screw, and the thread bush reciprocates and drives connecting block one and reciprocate, and then drives the drum and reciprocate, has realized the adjustment of drum and cover in vertical direction upper position.

Further, the upper end of the cylinder is hinged with a cylinder cover, the cylinder cover is matched with the through groove, the right end of the cylinder cover is hinged with a hinge, the lower end of the cylinder cover is fixedly connected with a first spring, the other end of the first spring is fixedly connected with the inner wall of the cylinder, and the left end of the cylinder cover corresponds to the fixed block.

Through adopting above-mentioned technical scheme, the drum is in the same place through the hinge of right-hand member with the cover, and when lifting unit drove drum and cover downwardly moving, the left end of cover and fixed block contact, and the fixed block supports the left end of cover upwards for the cover is high low slope about being, is convenient for pour the metal powder that stores up on the cover to corresponding powder recovery container, is favorable to retrieving the powder for printing.

Further, the air bag is communicated with the air delivery pipe and the connecting pipe, the connecting pipe is provided with the air inlet and two air outlets, the air inlet is communicated with the air bag, the air outlets are communicated with the bronchus, the connecting pipe is internally fixedly connected with a second connecting block, a first through hole is formed in the second connecting block, a sliding rod is connected to the first through hole in a sliding mode, one end of the sliding rod, close to the air inlet, is fixedly connected with a ball, the ball is plugged on the air inlet, the second connecting block is close to one end of the air inlet, is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with the ball.

Through adopting above-mentioned technical scheme, gas-supply pipe and lumen two-phase intercommunication, the operation of flexible subassembly two of being convenient for, bronchus and lumen one are linked together, the operation of flexible subassembly one of being convenient for, the cylinder moves down and extrudes the gasbag, gas in the gasbag enters into the connecting pipe, when gas reaches certain pressure, gas promotes the ball and moves to the connecting pipe inboard, make the ball no longer shutoff air inlet, be favorable to gas in the gasbag to enter into the connecting rod through the air inlet, and enter into the bronchus through the gas outlet outflow, when the gas pressure that comes out in the gasbag is insufficient to push away the ball, utilize the elasticity of spring two to promote the ball and block up the air inlet, in the in-process of cylinder downwardly moving extrusion gasbag, gas in the gasbag can get into the gas-supply pipe earlier, drive the operation of flexible subassembly two, the cylinder continues downwardly moving, when the gas that gushes out reaches certain pressure, gas gets into the connecting pipe, in the bronchus, and then the operation of flexible subassembly one has been realized.

Further, the first telescopic component comprises a first cavity pipe fixed on the outer side of the molding chamber shell, one end, far away from the molding chamber shell, of the first cavity pipe is communicated with the bronchus, a fourth through hole is formed in one end, far away from the bronchus, of the first cavity pipe, a second through hole and a third through hole are formed in the side wall of the molding chamber shell, the second through hole is located on the outer side of the third through hole, the second through hole corresponds to the fourth through hole, a first piston is connected in a sliding mode in the first cavity pipe, one end, close to the fourth through hole, of the first piston is fixedly connected with a first push rod, the other end of the first push rod is fixedly connected with a first scraping block, the first push rod penetrates through the fourth through hole and the second through hole, and the first scraping block is arranged in the third through hole.

Through adopting above-mentioned technical scheme, gas enters into the inner chamber of lumen pipe one through the bronchus, promotes the piston to move to leading to the groove direction, and piston one promotes through push rod one and scrapes the piece and move to leading to the groove direction, is convenient for push the powder that flexible subassembly two pushed to into leading to the groove, and the powder gets into and leads to the groove and fall to the capping of below, is favorable to retrieving the powder.

Further, the second telescopic component comprises a second cavity pipe arranged in the long groove, the left end of the second cavity pipe is communicated with the gas pipe, a fifth through hole is reserved at the right end of the second cavity pipe, a second piston is connected in the second cavity pipe in a sliding mode, the right end of the second piston is fixedly connected with a second push rod, the right end of the second push rod penetrates through the fifth through hole, the right end of the second push rod is fixedly connected with a push block, the other end of the push block is fixedly connected with a right angle plate, the left end of the right angle plate is fixedly connected with a third connecting block, the lower end of the third connecting block is fixedly connected with a second scraping block, and the second scraping block is arranged in the placing groove.

Through adopting above-mentioned technical scheme, gas enters into chamber pipe II through the gas-supply pipe, promotes the piston to move to the right, and the piston II promotes the kicking block through push rod II and moves to the right, and then drives the right-angle board and move to the right, and the right-angle board passes through connecting block III and drives the scraping block and move to the right, and the scraping block II pushes away the remaining metal powder around the shaping jar mouth to logical groove direction, has realized the powder clearance around the shaping jar mouth, is favorable to retrieving the powder of printer shaping indoor retention.

The beneficial effects of the utility model are as follows:

1. according to the utility model, through the arrangement of the lifting assembly and the cylinder, the motor is started, the screw rod is driven to rotate, the screw rod is driven to drive the threaded sleeve to move up and down along the screw rod, the threaded sleeve is driven to move up and down to drive the connecting block I to move up and down, and further, the cylinder and the cylinder cover are adjusted in the vertical direction, the cylinder and the cylinder cover are hinged together through the hinge at the right end, when the lifting assembly is used for driving the cylinder and the cylinder cover to move down, the left end of the cylinder cover is contacted with the fixed block, and the fixed block is used for propping up the left end of the cylinder cover upwards, so that the cylinder cover is inclined in a left-high-right low manner, and metal powder accumulated on the cylinder cover is conveniently poured out to a corresponding powder recovery container, so that the powder for printing is recovered.

2. According to the utility model, through the arrangement of the air bag, the air pipe is communicated with the cavity pipe two phases, the operation of the telescopic component two phases is facilitated, the bronchus is communicated with the cavity pipe one phase, the operation of the telescopic component one phase is facilitated, the cylinder moves downwards to extrude the air bag, gas in the air bag enters the connecting pipe, when the gas reaches a certain pressure, the gas pushes the ball to move towards the inner side of the connecting pipe, so that the ball does not block the air inlet, the gas in the air bag is facilitated to enter the connecting pipe through the air inlet and flow out into the bronchus through the air outlet, when the pressure of the gas out of the air bag is insufficient to push the ball, the air inlet is blocked by the spring two phases, the gas in the air bag firstly enters the air pipe in the process of moving downwards to extrude the air bag by the cylinder, the cylinder continues to move downwards, and when the gushed gas reaches a certain pressure, the gas enters the connecting pipe and the bronchus, and the operation of the telescopic component one phase is realized.

3. According to the utility model, through the arrangement of the first telescopic component, gas enters the inner cavity of the first cavity pipe through the bronchus, the piston is pushed to move towards the through groove, the first piston is pushed to move towards the through groove through the first push rod, powder pushed to the second telescopic component is pushed into the through groove conveniently, and the powder enters the through groove and falls onto the cylinder cover below, so that the powder is recovered conveniently.

4. According to the utility model, through the arrangement of the second telescopic component, gas enters the second cavity pipe through the gas pipe, the piston is pushed to move rightwards, the second piston is pushed to move rightwards through the push rod II, the right-angle plate is further driven to move rightwards, the scraping block is driven to move rightwards through the connecting block III, the scraping block II pushes the metal powder remained around the cylinder opening of the forming cylinder towards the direction of the through groove, powder cleaning around the cylinder opening of the forming cylinder is realized, and the recovery of the powder accumulated in the forming chamber of the printer is facilitated.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Description of the drawings:

the accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic front view in cross section of an embodiment of the present utility model;

FIG. 2 is a schematic side cross-sectional view of an embodiment of the present utility model;

FIG. 3 is a schematic view of a connecting pipe according to an embodiment of the present utility model;

FIG. 4 is a schematic side view of a connecting tube according to an embodiment of the present utility model;

FIG. 5 is a schematic front view of a second telescopic assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic top view of a second embodiment of a telescoping assembly;

FIG. 7 is an enlarged schematic view of the portion a of FIG. 1 according to an embodiment of the present utility model;

FIG. 8 is an enlarged schematic view of the embodiment of the present utility model at b in FIG. 2;

fig. 9 is an enlarged schematic view of fig. 2 at c according to an embodiment of the present utility model.

Reference numerals: 1. a forming chamber housing; 11. a forming cylinder; 12. a powder cylinder; 13. a placement groove; 14. a long groove; 15. a through groove; 2. a U-shaped plate; 21. a first mounting groove; 22. a second mounting groove; 23. a fixed block; 3. a lifting assembly; 31. a motor; 32. a screw rod; 33. a thread sleeve; 34. a first connecting block; 4. a cylinder; 41. a cylinder cover; 42. a first spring; 5. an air bag; 51. a connecting pipe; 52. bronchi; 53. an air outlet; 54. an air inlet; 55. a second connecting block; 56. a first through hole; 57. a slide bar; 58. a ball; 59. a second spring; 510. a gas pipe; 6. a first telescopic component; 61. a first piston; 62. a push rod I; 63. scraping a first block; 64. a second through hole; 65. a third through hole; 66. a through hole IV; 67. a first cavity tube; 7. a second telescopic component; 71. a second piston; 72. a second push rod; 73. a through hole V; 74. a pushing block; 75. a right angle plate; 76. a third connecting block; 77. scraping a second block; 78. and a cavity tube II.

The specific embodiment is as follows:

in order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Referring to fig. 1, fig. 2, fig. 7, fig. 8 and fig. 9, an embodiment of the utility model provides a powder recycling device of a metal 3D printer, which comprises a forming chamber housing 1, wherein the lower end of the forming chamber housing 1 is fixedly connected with a U-shaped plate 2, the lower end of the forming chamber housing 1 is provided with a forming cylinder 11 and a powder cylinder 12, the forming cylinder 11 is positioned at the left end of the powder cylinder 12, a placing groove 13 and a long groove 14 are reserved on the side wall of the forming chamber housing 1, a through groove 15 is formed in the bottom wall of the forming chamber housing 1, the U-shaped plate 2 is positioned at the lower end of the through groove 15, the forming cylinder 11 and the powder cylinder 12 are respectively positioned at the left end and the right end of the U-shaped plate 2, a mounting groove 21 and a mounting groove 22 are formed in the U-shaped plate 2, the mounting groove 21 is positioned at the upper end of the mounting groove 22, the upper end of the bottom wall of the U-shaped plate 2 is fixedly connected with a fixed block 23, and the U-shaped plate 2 is convenient for mounting of a lifting assembly 3.

Referring to fig. 1, fig. 2 and fig. 8,U, a lifting assembly 3 is arranged on a template 2, the lifting assembly 3 comprises a screw rod 32 arranged in a first mounting groove 21, a motor 31 is connected to the lower end of the screw rod 32 in a transmission manner, the motor 31 is arranged in a second mounting groove 22, a threaded sleeve 33 is rotatably connected to the screw rod 32, one end, close to a cylinder 4, of the threaded sleeve 33 is fixedly connected with a first connecting block 34, the other end of the first connecting block 34 is fixedly connected with the cylinder 4, a motor 31 is started, the motor 31 drives the screw rod 32 to rotate, the screw rod 32 drives the threaded sleeve 33 to move up and down along the screw rod 32, the threaded sleeve 33 moves up and down to drive the first connecting block 34 to move up and down, and then the cylinder 4 is driven to move up and down, and the adjustment of the positions of the cylinder 4 and a cylinder cover 41 in the vertical direction is achieved.

Referring to fig. 1-2, a cylinder 4 is arranged on the lifting assembly 3, a cylinder cover 41 is hinged at the upper end of the cylinder 4, the cylinder cover 41 is matched with the through groove 15, a hinge is hinged at the right end of the cylinder cover 41, a first spring 42 is fixedly connected at the lower end of the cylinder cover 41, the other end of the first spring 42 is fixedly connected with the inner wall of the cylinder 4, the left end of the cylinder cover 41 corresponds to the fixed block 23, the cylinder 4 and the cylinder cover 41 are hinged together through the hinge at the right end, when the lifting assembly 3 drives the cylinder 4 and the cylinder cover 41 to move downwards, the left end of the cylinder cover 41 is contacted with the fixed block 23, and the fixed block 23 pushes the left end of the cylinder cover 41 upwards, so that the cylinder cover 41 is inclined in a left-right-and-left-low manner, and metal powder stored on the cylinder cover 41 is conveniently poured out to a corresponding powder recovery container, and printing powder is conveniently recovered.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 8 and fig. 9,U, the upper end of the bottom wall of the template 2 is fixedly connected with an air bag 5, the air bag 5 is communicated with an air pipe 510 and a connecting pipe 51, the connecting pipe 51 is provided with an air inlet 54 and two air outlets 53, the air inlet 54 is communicated with the air bag 5, the air outlet 53 is communicated with a bronchus 52, the connecting pipe 51 is fixedly connected with a connecting block II 55, the connecting block II 55 is provided with a through hole I56, a slide bar 57 is slidably connected in the through hole I56, one end of the slide bar 57 close to the air inlet 54 is fixedly connected with a ball 58, the ball 58 is plugged on the air inlet 54, one end of the connecting block II 55 close to the air inlet 54 is fixedly connected with a spring II 59, the other end of the spring II 59 is fixedly connected with the ball 58, the air pipe 510 is communicated with a cavity II 78, the telescopic component II 7 is convenient to run, the bronchus 52 is communicated with the cavity I67, the telescopic component II 6 is convenient to run, the cylinder 4 moves downwards to squeeze the air bag 5, gas in the air bag 5 enters the connecting pipe 51, when the gas in the air bag 51 reaches a certain pressure, the ball 58 moves inwards, the connecting pipe 58 pushes the connecting pipe II to the connecting pipe 58 to the inside, one end is not beneficial to push the ball 58 to push the air to the air inlet 5, one end of the air bag 5 to move downwards, and then the air inlet 5 enters the air inlet 5, and the air inlet 5 to the air inlet 5, and the air inlet 5 is pushed downwards to the air inlet 5 and out of the telescopic component II and the air inlet 5 and then flows into the air inlet 5 and goes out of the air inlet 5 and runs down and 5 and is far, in the bronchi 52, the operation of the telescopic assembly one 6 is thus achieved.

Referring to fig. 1, 2 and 9, a first telescopic component 6 is arranged on the air bag 5, the first telescopic component 6 comprises a first cavity pipe 67 fixed on the outer side of the forming chamber shell 1, one end of the first cavity pipe 67, which is far away from the forming chamber shell 1, is communicated with the bronchus 52, a fourth through hole 66 is formed in one end of the first cavity pipe 67, which is far away from the bronchus 52, a second through hole 64 and a third through hole 65 are formed in the side wall of the forming chamber shell 1, the second through hole 64 is located on the outer side of the third through hole 65, the second through hole 64 corresponds to the fourth through hole 66, a first piston 61 is connected in a sliding manner in the first cavity pipe 67, one end of the first piston 61, which is close to the fourth through hole 66, is fixedly connected with a first push rod 62, the other end of the first push rod 62 is fixedly connected with a first scraping block 63, the first push rod 62 penetrates through the fourth through hole 64 and the second through hole 64, the first scraping block 63 is arranged in the third through hole 65, gas enters into the inner cavity of the first cavity pipe 67 through the bronchus 52, the first piston 61 is pushed to move towards the through groove 15, the first scraping block 63 is pushed towards the direction of the through groove 15, the first push rod 63 is pushed to move towards the direction of the through groove 15, the telescopic component 7 is pushed into the powder through the groove 15, and the powder can be pushed down into the powder groove 41, and the powder can be recovered.

Referring to fig. 1, fig. 2, fig. 5, fig. 6, fig. 7 and fig. 9, the air bag 5 is provided with a second telescopic assembly 7, the second telescopic assembly 7 comprises a second cavity tube 78 arranged in the long groove 14, the left end of the second cavity tube 78 is communicated with the air tube 510, a fifth through hole 73 is reserved at the right end of the second cavity tube 78, a second piston 71 is slidably connected in the second cavity tube 78, the right end of the second piston 71 is fixedly connected with a second push rod 72, the right end of the second push rod 72 penetrates through the fifth through hole 73, the right end of the second push rod 72 is fixedly connected with a push block 74, the other end of the push block 74 is fixedly connected with a rectangular plate 75, the left end of the rectangular plate 75 is fixedly connected with a third connecting block 76, the lower end of the third connecting block 76 is fixedly connected with a second scraping block 77, the second scraping block 77 is arranged in the placing groove 13, air enters the second cavity tube 78 through the air tube 510, the second piston 71 is pushed to move rightwards by pushing the second piston 71, the second pushing the second rectangular plate 74 is further pushed rightwards by the second push rod 72, the rectangular plate 75 is driven rightwards, the second scraping block 75 is driven to move rightwards by the connecting block 76, the right side, the right end of the rectangular plate 77 is pushed leftwards by the connecting block 77 is pushed leftwards, the metal cylinder 11 around the scraping block 77 is left around the opening 11 is formed in the cylinder, the cylinder 11 is formed, the cylinder is formed, the powder is left around the cylinder is formed, the powder is left, the cylinder is formed, the powder is formed, the cylinder is formed, the powder is left, and the cylinder is formed, the powder is formed, and the powder is left, and the cylinder is formed, and the powder is left, and the cylinder is formed and the cylinder is a cylinder is and the powder is formed.

The implementation mode specifically comprises the following steps: when in use, the motor 31 is started, the motor 31 drives the screw rod 32 to rotate, the screw rod 32 drives the thread bush 33 to move downwards along the screw rod 32, the thread bush 33 moves downwards to drive the connecting block I34 to move downwards, the cylinder 4 is driven to move downwards to squeeze the air bag 5, gas enters the cavity pipe II 78 through the gas pipe 510, the piston II 71 is pushed to move rightwards, the piston II 71 is pushed by the push rod II 72 to push the push block 74 to move rightwards, the right angle plate 75 is driven to move rightwards, the right angle plate 75 drives the scraping block II 77 to move rightwards through the connecting block III 76, the scraping block II 77 pushes residual metal powder around the cylinder opening of the forming cylinder 11 to the direction of the through groove 15, powder around the cylinder opening of the forming cylinder 11 is cleaned, gas in the air bag 5 enters the connecting pipe 51, and when the gas reaches a certain pressure, the ball 58 is pushed to move towards the inner side of the connecting pipe 51 by gas, so that the ball 58 does not block the air inlet 54 any more, the gas in the air bag 5 enters the connecting rod 51 through the air inlet 54 and flows out into the bronchus 52 through the air outlet 53, the gas enters the inner cavity of the cavity tube I67 through the bronchus 52, the piston I61 is pushed to move towards the through groove 15, the piston I61 pushes the scraping block I63 to move towards the through groove 15 through the push rod I62, the powder pushed by the scraping block II 77 is pushed into the through groove 15, the powder enters the through groove 15 and falls onto the cylinder cover 41 below, the cylinder 4 and the cylinder cover 41 move downwards, the fixing block 23 pushes the left end of the cylinder cover 41 upwards, so that the cylinder cover 41 is inclined to be high and low in left and right, and the metal powder on the cylinder cover 41 is poured into a corresponding powder recovery container, and printing powder is recovered.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a metal 3D printer powder recovery unit, includes shaping room casing (1), its characterized in that, the lower extreme fixedly connected with U template (2) of shaping room casing (1), the lower extreme of shaping room casing (1) is provided with shaping jar (11) and powder jar (12), shaping jar (11) are located the left end of powder jar (12), reserve standing groove (13) and elongated slot (14) on the lateral wall of shaping room casing (1), logical groove (15) have been seted up on the diapire of shaping room casing (1), U template (2) are located the lower extreme of logical groove (15), shaping jar (11) with powder jar (12) are located respectively the left and right sides both ends of U template (2), be provided with lifting unit (3) on U template (2), be provided with drum (4) on lifting unit (3), the diapire upper end fixedly connected with gasbag (5) of U template (2), be provided with on gasbag (5) one and two telescopic modules (7).

2. The powder recovery device of the metal 3D printer according to claim 1, wherein a first installation groove (21) and a second installation groove (22) are formed in the U-shaped plate (2), the first installation groove (21) is located at the upper end of the second installation groove (22), and a fixing block (23) is fixedly connected to the upper end of the bottom wall of the U-shaped plate (2).

3. The powder recovery device of the metal 3D printer according to claim 2, wherein the lifting assembly (3) comprises a screw rod (32) arranged in a first mounting groove (21), a motor (31) is connected to the lower end of the screw rod (32) in a transmission mode, the motor (31) is arranged in a second mounting groove (22), a threaded sleeve (33) is connected to the screw rod (32) in a rotating mode, one end, close to the cylinder (4), of the threaded sleeve (33) is fixedly connected with a first connecting block (34), and the other end of the first connecting block (34) is fixedly connected with the cylinder (4).

4. The powder recycling device of the metal 3D printer according to claim 2, wherein a cylinder cover (41) is hinged to the upper end of the cylinder (4), the cylinder cover (41) is matched with the through groove (15), a hinge is hinged to the right end of the cylinder cover (41), a first spring (42) is fixedly connected to the lower end of the cylinder cover (41), the other end of the first spring (42) is fixedly connected with the inner wall of the cylinder (4), and the left end of the cylinder cover (41) corresponds to the fixed block (23).

5. The powder recycling device of the metal 3D printer according to claim 1, wherein the air bag (5) is communicated with a gas pipe (510) and a connecting pipe (51), the connecting pipe (51) is provided with an air inlet (54) and two air outlets (53), the air inlet (54) is communicated with the air bag (5), the air outlets (53) are communicated with a bronchus (52), a connecting block II (55) is fixedly connected in the connecting pipe (51), a through hole I (56) is formed in the connecting block II (55), a sliding rod (57) is slidably connected in the through hole I (56), one end, close to the air inlet (54), of the sliding rod (57) is fixedly connected with a ball (58), one end, close to the air inlet (54), of the connecting block II (55) is fixedly connected with a spring II (59), and the other end, close to the ball (58), of the spring II (59).

6. The powder recycling device of a metal 3D printer according to claim 5, wherein the first telescopic component (6) comprises a first cavity tube (67) fixed on the outer side of the molding chamber shell (1), one end of the first cavity tube (67) away from the molding chamber shell (1) is communicated with the bronchus (52), a fourth through hole (66) is formed in one end of the first cavity tube (67) away from the bronchus (52), a second through hole (64) and a third through hole (65) are formed in the side wall of the molding chamber shell (1), the second through hole (64) is located on the outer side of the third through hole (65), the second through hole (64) corresponds to the fourth through hole (66), a first piston (61) is connected in a sliding mode to the first cavity tube (67), one end of the first piston (61) close to the fourth through hole (66) is fixedly connected with a first push rod (62), the other end of the first push rod (62) is fixedly connected with a scraping block (63), and the first push rod (62) penetrates the fourth push rod (66) to the second through hole (64) and is placed in the third through hole (65).

7. The metal 3D printer powder recycling device according to claim 5, wherein the second telescopic component (7) comprises a second cavity tube (78) arranged in the long groove (14), the left end of the second cavity tube (78) is communicated with the air delivery tube (510), a fifth through hole (73) is reserved at the right end of the second cavity tube (78), a second piston (71) is slidably connected in the second cavity tube (78), a second push rod (72) is fixedly connected at the right end of the second piston (71), the right end of the second push rod (72) penetrates through the fifth through hole (73), a push block (74) is fixedly connected at the right end of the second push rod (72), a third connecting block (76) is fixedly connected at the left end of the second push block (74), a second scraping block (77) is fixedly connected at the lower end of the third connecting block (76), and the second scraping block (77) is arranged in the placing groove (13).