High-energy beam sintering 3D printer

Abstract

The utility model provides a high-energy beam sintering 3D printer. The high-energy beam sintering 3D printer comprises a shell, a first partition plate, a second partition plate and a third partition plate are arranged in the shell, the space in the shell is divided into an area a, an area b, an area c and an area d through the first partition plate, the second partition plate and the third partition plate, and a powder blowing mechanism is arranged in the area a; the powder blowing mechanism comprises a mounting box, a first motor, a first gear, a plurality of inner threaded sleeves, a plurality of threaded rods, a plurality of second gears, a hollow frame, a plurality of nozzles, a first Roots blower and a telescopic air conveying pipe. According to the high-energy-beam sintering 3D printer, the powder blowing structure is arranged, the surface of a printed finished product is cleaned, manpower is saved, redundant metal powder cleaned by the powder blowing mechanism is raised into air, follow-up recycling is facilitated, a Roots blower is arranged, metal powder mixed gas in the device is extracted, metal powder in the metal powder mixed gas is filtered out, and the metal powder is recycled. And subsequent recycling is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printing, and in particular relates to a high-energy beam sintering 3D printer. Background Art

[0002] As long as the 3D data of the designed product is input through the computer, the laser 3D printer can use the laser added layer sintering technology to "print" any complex parts that the designer wants. Compared with traditional processes such as mold manufacturing, similar products manufactured by "laser 3D printers" can also achieve a 65% weight reduction and 90% material saving. At present, only a very few countries in the world can manufacture such equipment. "3D printing" is mainly used to manufacture precise and complex industrial parts, and is expected to become an omnipotent "universal manufacturing machine" in the future. Academician Huang Boyun believes that "laser 3D printers" have broad application prospects in aerospace, medical equipment and other fields.

[0003] After searching, among the related technologies, the patent document with the authorization publication number CN108746614A discloses a laser sintering 3D printing device, including an upper shell, a lower shell, and a display screen. The display screen is arranged on the surface of the upper shell, and the upper shell is connected to the display screen by screws. A function button is arranged below the display screen, and the function button is nested in the upper shell. An intelligent temperature controller is arranged on one side of the function button, and the intelligent temperature controller is connected to the upper shell by screws. A partition is arranged below the upper shell, and the partition is connected to the upper shell by screws. The lower shell is arranged below the partition, and the partition is connected to the lower shell by screws. The beneficial effect is that the present invention is easy to move, and the collision during the movement is reduced. At the same time, the temperature control is accurate, the feeding amount is accurate, and the molding speed is faster. The molding process can be observed from the side, which is convenient for understanding the molding process and finding molding errors, and the influence of dust on the control module is reduced.

[0004] Regarding the above-mentioned related technologies, the utility model inventor believes that the following defects exist: the excess metal powder attached to the finished product after printing is not cleaned up, which cannot completely free up manpower, and the excess metal powder is not recycled, resulting in a waste of resources.

[0005] Therefore, it is necessary to provide a new high energy beam sintering 3D printer to solve the above technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a high-energy beam sintering 3D printer which cleans the surface of a finished product after printing by setting a powder blowing structure, saving manpower, blowing the excess metal powder cleaned by the powder blowing mechanism into the air, which is convenient for subsequent recycling, and setting a Roots blower to extract the metal powder mixed gas in the device and filter out the metal powder therein, which is convenient for subsequent recycling.

[0007] In order to solve the above technical problems, the high-energy beam sintering 3D printer provided by the utility model comprises: a shell, wherein a partition plate 1, a partition plate 2 and a partition plate 3 are arranged in the shell, and the space in the shell is divided into area a, area b, area c and area d by the partition plates 1, 2 and 3, and a powder blowing mechanism is arranged in the area a, and the powder blowing mechanism comprises an installation box, a motor 1, a gear 1, a plurality of internal threaded sleeves, a plurality of threaded rods, a plurality of gears 2, a hollow frame, a plurality of nozzles, a Roots blower 1 and a telescopic air delivery pipe, wherein the installation box is fixedly installed on the top of the shell, the motor 1 is fixedly installed in the installation box, the gear 1 is fixedly sleeved on the output shaft of the motor 1, and the plurality of internal threaded sleeves are fixedly sleeved on the output shaft of the motor 1. The cylinders are rotatably installed in the installation box, the bottom end of the internal threaded sleeve extends into the shell and is rotatably connected to the shell, multiple gears 2 are respectively fixedly sleeved on the multiple internal threaded sleeves, multiple gears 2 are meshed with gear 1, multiple threaded rods are respectively threadedly installed on the multiple internal threaded sleeves, the Roots blower 1 is fixedly installed on the top of the shell, the hollow frame is arranged in the shell, the bottom ends of the multiple threaded rods extend into the area a and are fixedly connected to the hollow frame, multiple nozzles are fixedly installed on the hollow frame, and the multiple nozzles are connected to the hollow frame. The air outlet of the Roots blower 1 is fixedly installed with a telescopic air pipe, and the other end of the telescopic air pipe extends into the shell and is connected to the hollow frame.

[0008] As a further solution of the utility model, multiple hair dryers are fixedly installed in the area b, and multiple air ducts 1 are fixedly installed on the air inlets of the multiple hair dryers, and the other ends of the multiple air ducts 1 extend to the outside of the shell; multiple air ducts 2 are fixedly installed on the air outlets of the multiple hair dryers, and one ends of the multiple air ducts 2 extend to the area a and are fixedly installed with flat-mouth nozzles; multiple exhaust nozzles are fixedly installed on the partition 1; an exhaust cylinder is fixedly installed in the area c, and the multiple exhaust nozzles are connected to the exhaust cylinder.

[0009] As a further scheme of the utility model, a Roots blower 2 is fixedly mounted on the outer wall of one side of the shell, an air duct 3 is fixedly mounted on the air inlet of the Roots blower 2, one end of the air duct 3 extends into the area c and is connected with the exhaust cylinder, an air duct 4 is fixedly mounted on the air outlet of the Roots blower 2, a collecting box is fixedly mounted on the outer wall of the shell, the other end of the air duct 4 extends into the collecting box, a one-way valve is provided on the air duct 4, a wave baffle is fixedly mounted on the top inner wall of the collecting box, a filter is fixedly mounted on the inner wall of one side of the collecting box, and a collection box is provided on the bottom inner wall of the collecting box.

[0010] As a further solution of the utility model, a partition four is fixedly installed in the area a, and a residual material box, a loading box and a sintering box are provided in the area d, the residual material box is fixedly installed on the bottom inner wall of the shell, and the loading box is arranged on the bottom inner wall of the shell, a loading plate is slidably installed in the loading box, and the loading plate is adapted to the loading box, an electric telescopic rod one is fixedly installed on the bottom inner wall of the loading box, and the output shaft of the electric telescopic rod one is fixedly connected to the bottom of the loading plate, an electric telescopic rod two is fixedly installed on the bottom inner wall of the shell, and the output shaft of the electric telescopic rod two is fixedly connected to the bottom of the sintering box, the sintering box is adapted to the residual material box and the loading box, a bearing plate is slidably installed in the sintering box, and the bearing plate is adapted to the sintering box, an electric telescopic rod three is fixedly installed on the bottom inner wall of the sintering box, and the output shaft of the electric telescopic rod three is fixedly connected to the bottom of the bearing plate, and the sintering box is adapted to the opening of the partition four.

[0011] As a further solution of the utility model, a motor 2 is fixedly installed in the area b, a threaded rod 2 is fixedly installed on the output shaft of the motor 2, the other end of the threaded rod 2 is rotatably connected to an inner wall of one side of the shell, a limiting rod is fixedly installed in the area b, a scraper is threadedly installed on the threaded rod 2, and the scraper is slidably connected to the limiting rod.

[0012] As a further solution of the utility model, a high-energy beam emission head is fixedly mounted on the top inner wall of the shell.

[0013] Compared with the related art, the high energy beam sintering 3D printer provided by the utility model has the following beneficial effects:

[0014] 1. The utility model cleans the surface of the finished product after printing by setting a powder blowing structure, cleans the excess metal powder attached to the surface, saves the manual cleaning step, and saves manpower;

[0015] 2. The utility model provides a blower and a flat air nozzle to blow the excess metal powder cleaned by the powder blowing mechanism into the air, which is convenient for subsequent recycling;

[0016] 3. The utility model provides a Roots blower to extract the metal powder mixed gas in the device and filter out the metal powder therein, so as to facilitate subsequent recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the front view and cross-section structure of the high energy beam sintering 3D printer of the utility model;

[0019] Figure 2It is a front view and cross-sectional structure schematic diagram of the working state of the high energy beam sintering 3D printer of the utility model;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the high-energy beam sintering 3D printer of the utility model;

[0021] Figure 4 It is a schematic diagram of the side cross-sectional structure of the high energy beam sintering 3D printer of the utility model;

[0022] Figure 5 This is a schematic diagram of the external structure of the high energy beam sintering 3D printer of the utility model;

[0023] Figure 6 It is a schematic structural diagram of the b area of ​​the high energy beam sintering 3D printer of the utility model;

[0024] Figure 7 This is a schematic structural diagram of the c region of the high energy beam sintering 3D printer of the utility model;

[0025] Figure 8 for Figure 1 The structural diagram of part A in the figure;

[0026] Fig. 9 for Figure 1 Schematic diagram of the structure of some components.

[0027] In the figure: 1, housing; 2, partition 1; 3, partition 2; 4, partition 3; 5, installation box; 6, motor 1; 7, gear 1; 8, internal thread sleeve; 9, threaded rod; 10, gear 2; 11, hollow frame; 12, nozzle; 13, Roots blower 1; 14, telescopic air pipe; 15, hair dryer; 16, air duct 1; 17, air duct 2; 18, flat nozzle; 19, exhaust nozzle; 20, exhaust cylinder; 21, Roots blower 2; 22, air duct 3; 23. Air duct four; 24. Collecting box; 25. One-way valve; 26. Wave baffle; 27. Filter; 28. Collecting box; 29. ​​Partition four; 30. Residual material box; 31. Loading box; 32. Sintering box; 33. Electric telescopic rod one; 34. Electric telescopic rod two; 35. Loading plate; 36. Electric telescopic rod three; 37. Motor two; 38. Threaded rod two; 39. Limit rod; 40. Scraper; 41. High energy beam launch head; 311. Loading plate. DETAILED DESCRIPTION

[0028] Please refer to Figures 1 to 9 ,in Figure 1 It is a schematic diagram of the front view and cross-section structure of the high energy beam sintering 3D printer of the utility model; Figure 2 It is a front view and cross-sectional structure schematic diagram of the working state of the high energy beam sintering 3D printer of the utility model; Figure 3It is a schematic diagram of the three-dimensional structure of the high-energy beam sintering 3D printer of the utility model; Figure 4 It is a schematic diagram of the side cross-sectional structure of the high energy beam sintering 3D printer of the utility model; Figure 5 This is a schematic diagram of the external structure of the high energy beam sintering 3D printer of the utility model; Figure 6 It is a schematic structural diagram of the b area of ​​the high energy beam sintering 3D printer of the utility model; Figure 7 This is a schematic structural diagram of the c region of the high energy beam sintering 3D printer of the utility model; Figure 8 for Figure 1 The structural diagram of part A in the figure; Fig. 9 for Figure 1 The schematic diagram of the structure of some components in the middle. The high energy beam sintering 3D printer includes: a shell 1, wherein the shell 1 is provided with a partition 1 2, a partition 2 3 and a partition 3 4, and the space in the shell 1 is divided into area a, area b, area c and area d by the partition 1 2, the partition 2 3 and the partition 3 4, and the area a is provided with a powder blowing mechanism, and the powder blowing mechanism includes a mounting box 5, a motor 1 6, a gear 1 7, a plurality of internal threaded sleeves 8, a plurality of threaded rods 9, a plurality of gears 2 10, a hollow frame 11, a plurality of nozzles 12, a Roots blower 13 and a telescopic air pipe 14, the mounting box 5 is fixedly mounted on the top of the shell 1, the motor 1 6 is fixedly mounted in the mounting box 5, the gear 1 7 is fixedly sleeved on the output shaft of the motor 1 6, and the plurality of internal threaded sleeves 8 are all rotatably mounted in the mounting box 5, The bottom end of the internal threaded sleeve 8 extends into the shell 1 and is rotatably connected to the shell 1, multiple gears 10 are respectively fixedly sleeved on the multiple internal threaded sleeves 8, and the multiple gears 10 are all meshed with the gear 1 7. Multiple threaded rods 9 are respectively threadedly installed on the multiple internal threaded sleeves 8. The Roots blower 13 is fixedly installed on the top of the shell 1, and the hollow frame 11 is arranged in the shell 1. The bottom ends of the multiple threaded rods 9 extend into the area a and are fixedly connected to the hollow frame 11. Multiple nozzles 12 are fixedly installed on the hollow frame 11, and the multiple nozzles 12 are connected to the hollow frame 11. The air outlet of the Roots blower 13 is fixedly installed with a telescopic air pipe 14, and the other end of the telescopic air pipe 14 extends into the shell 1 and is connected to the hollow frame 11.

[0029] Through the cooperation of the motor 6 and the Roots blower 13, the surface of the printed product is cleaned, and the excess metal powder attached to the surface is cleaned off, eliminating the manual cleaning step and saving manpower.

[0030] A plurality of hair dryers 15 are fixedly installed in the area b, and a plurality of air ducts 16 are fixedly installed at the air inlets of the plurality of hair dryers 15, and the other ends of the plurality of air ducts 16 extend to the outside of the shell 1; a plurality of air ducts 17 are fixedly installed at the air outlets of the plurality of hair dryers 15, and one end of the plurality of air ducts 17 extends to the area a and is fixedly installed with a flat-mouth nozzle 18; a plurality of exhaust nozzles 19 are fixedly installed on the partition 2; a vacuum cylinder 20 is fixedly installed in the area c, and the plurality of exhaust nozzles 19 are connected to the vacuum cylinder 20.

[0031] Through the cooperation between the blower 15 and the vacuum cylinder 20, the excess metal powder cleaned by the powder blowing mechanism is blown into the air, which is convenient for subsequent recycling.

[0032] A Roots blower 21 is fixedly mounted on the outer wall of one side of the shell 1, an air duct 3 22 is fixedly mounted on the air inlet of the Roots blower 21, one end of the air duct 3 22 extends into the area c and is connected with the vacuum cylinder 20, an air duct 4 23 is fixedly mounted on the air outlet of the Roots blower 21, a collecting box 24 is fixedly mounted on the outer wall of the shell 1, the other end of the air duct 4 23 extends into the collecting box 24, a one-way valve 25 is provided on the air duct 4 23, a wave baffle 26 is fixedly mounted on the top inner wall of the collecting box 24, a filter screen 27 is fixedly mounted on the inner wall of one side of the collecting box 24, and a collecting box 28 is provided on the bottom inner wall of the collecting box 24.

[0033] Through the cooperation of the Roots blower 21 and the collecting box 24, the metal powder mixed gas in the device is extracted and the metal powder therein is filtered out, so as to facilitate subsequent recycling.

[0034] A partition plate 29 is fixedly installed in the area a, and a residual material box 30, a loading box 31 and a sintering box 32 are provided in the area d. The residual material box 30 is fixedly installed on the bottom inner wall of the shell 1, and the loading box 31 is arranged on the bottom inner wall of the shell 1. A loading plate 311 is slidably installed in the loading box 31, and the loading plate 311 is adapted to the loading box 31. An electric telescopic rod 33 is fixedly installed on the bottom inner wall of the loading box 31, and the output shaft of the electric telescopic rod 33 is fixedly connected to the bottom of the loading plate 311. An electric telescopic rod 2 34 is fixedly installed on the bottom inner wall of the body 1, and the output shaft of the electric telescopic rod 2 34 is fixedly connected to the bottom of the sintering box 32. The sintering box 32 is adapted to the residual material box 30 and the loading box 31. A bearing plate 35 is slidably installed in the sintering box 32, and the bearing plate 35 is adapted to the sintering box 32. An electric telescopic rod 36 is fixedly installed on the bottom inner wall of the sintering box 32, and the output shaft of the electric telescopic rod 36 is fixedly connected to the bottom of the bearing plate 35. The sintering box 32 is adapted to the opening of the partition 29;

[0035] A second motor 37 is fixedly installed in the region b, a second threaded rod 38 is fixedly installed on the output shaft of the second motor 37, the other end of the second threaded rod 38 is rotatably connected to the inner wall of one side of the housing 1, a limit rod 39 is fixedly installed in the region b, a scraper 40 is threadedly installed on the second threaded rod 38, and the scraper 40 is slidably connected to the limit rod 39;

[0036] A high energy beam emitting head 41 is fixedly mounted on the top inner wall of the housing 1 .

[0037] The working principle of the high energy beam sintering 3D printer provided by the utility model is as follows:

[0038] The first step: when the device is started, the electric telescopic rod 33 drives the loading plate 311 to be pushed out, and a part of the raw materials in the loading box 31 is pushed out. With the cooperation of the motor 2 37 and the threaded rod 2 38, the scraper 40 moves back and forth to spread the raw materials on the carrier plate 35, and the excess raw materials enter the residual material box 30. The high-energy beam emission head 41 is started to sinter the raw materials. After sintering, under the action of the electric telescopic rod 2 34, the carrier plate 35 drops to a suitable depth, and the electric telescopic rod 33 is pushed upward again to push out a part of the raw materials in the loading box 31. The scraper 40 moves back and forth to spread the raw materials on the carrier plate 35 again, and the above steps are repeated to sinter the raw materials layer by layer to complete 3D printing.

[0039] Step 2: When printing is completed, the electric telescopic rod 2 34 and the electric telescopic rod 3 36 are pushed out to send the finished product together with the carrier plate 35 to area a, and with the cooperation of the Roots blower 13 of the motor 1 6, the excess metal powder on the finished product is cleaned. At the same time, multiple hair dryers 15 are started, and strong winds are blown out through the flat nozzles 18 to lift the cleaned metal powder into the air, and under the extraction of the Roots blower 2 21, the metal powder leaves the device body through the exhaust cylinder 20 and the air duct 3 22, and enters the collection box 24 through the air duct 4 23. With the cooperation of the wave baffle 26 and the filter 27, it is finally settled in the collection box 28.

[0040] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0041] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0042] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A high energy beam sintering 3D printer, characterized in that: The invention comprises: a shell, wherein a partition 1, a partition 2 and a partition 3 are arranged in the shell, and the space in the shell is divided into area a, area b, area c and area d by the partition 1, the partition 2 and the partition 3, and a powder blowing mechanism is arranged in the area a, and the powder blowing mechanism comprises an installation box, a motor 1, a gear 1, a plurality of internal threaded sleeves, a plurality of threaded rods, a plurality of gear 2, a hollow frame, a plurality of nozzles, a Roots blower 1 and a telescopic air delivery pipe, the installation box is fixedly installed on the top of the shell, the motor 1 is fixedly installed in the installation box, the gear 1 is fixedly sleeved on the output shaft of the motor 1, and the plurality of internal threaded sleeves are rotatably installed in the installation box, and the The bottom end of the internal threaded sleeve extends into the shell and is rotatably connected to the shell, multiple gears 2 are respectively fixedly mounted on the multiple internal threaded sleeves, multiple gears 2 are all meshed with gear 1, multiple threaded rods are respectively threadedly mounted on the multiple internal threaded sleeves, the Roots blower 1 is fixedly mounted on the top of the shell, the hollow frame is arranged in the shell, the bottom ends of the multiple threaded rods extend into area a and are fixedly connected to the hollow frame, multiple nozzles are fixedly mounted on the hollow frame, and the multiple nozzles are connected to the hollow frame, and the air outlet of the Roots blower 1 is fixedly installed with a telescopic air pipe, and the other end of the telescopic air pipe extends into the shell and is connected to the hollow frame.

2. The high energy beam sintering 3D printer according to claim 1, characterized in that: Multiple hair dryers are fixedly installed in the area b, and multiple air ducts 1 are fixedly installed on the air inlets of the multiple hair dryers, and the other ends of the multiple air ducts 1 extend to the outside of the shell; multiple air ducts 2 are fixedly installed on the air outlets of the multiple hair dryers, and one ends of the multiple air ducts 2 extend to the area a and are fixedly installed with flat-mouth nozzles; multiple exhaust nozzles are fixedly installed on the partition 1; an exhaust cylinder is fixedly installed in the area c, and the multiple exhaust nozzles are connected to the exhaust cylinder.

3. The high energy beam sintering 3D printer according to claim 1, characterized in that: A Roots blower 2 is fixedly mounted on the outer wall of one side of the shell, an air duct 3 is fixedly mounted on the air inlet of the Roots blower 2, one end of the air duct 3 extends into the area c and is connected with the exhaust cylinder, an air duct 4 is fixedly mounted on the air outlet of the Roots blower 2, a collecting box is fixedly mounted on the outer wall of the shell, the other end of the air duct 4 extends into the collecting box, a one-way valve is provided on the air duct 4, a wave baffle is fixedly mounted on the top inner wall of the collecting box, a filter is fixedly mounted on the inner wall of one side of the collecting box, and a collecting box is provided on the bottom inner wall of the collecting box.

4. The high energy beam sintering 3D printer according to claim 2, characterized in that: A partition plate four is fixedly installed in the area a, and a residual material box, a loading box and a sintering box are provided in the area d. The residual material box is fixedly installed on the bottom inner wall of the shell, and the loading box is arranged on the bottom inner wall of the shell. A loading plate is slidably installed in the loading box, and the loading plate is adapted to the loading box. An electric telescopic rod one is fixedly installed on the bottom inner wall of the loading box, and the output shaft of the electric telescopic rod one is fixedly connected to the bottom of the loading plate, an electric telescopic rod two is fixedly installed on the bottom inner wall of the shell, and the output shaft of the electric telescopic rod two is fixedly connected to the bottom of the sintering box, the sintering box is adapted to the residual material box and the loading box, a bearing plate is slidably installed in the sintering box, and the bearing plate is adapted to the sintering box, an electric telescopic rod three is fixedly installed on the bottom inner wall of the sintering box, and the output shaft of the electric telescopic rod three is fixedly connected to the bottom of the bearing plate, and the sintering box is adapted to the opening of the partition plate four.

5. The high energy beam sintering 3D printer according to claim 2, characterized in that: Motor 2 is fixedly installed in the area b, threaded rod 2 is fixedly installed on the output shaft of motor 2, the other end of threaded rod 2 is rotatably connected to the inner wall of one side of the shell, a limiting rod is fixedly installed in the area b, a scraper is threadedly installed on threaded rod 2, and the scraper is slidably connected to the limiting rod.

6. The high energy beam sintering 3D printer according to claim 4, characterized in that: A high energy beam emission head is fixedly mounted on the top inner wall of the shell.

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