Laser sintering device for alloy composite material

Abstract

The utility model relates to the technical field of laser processing, in particular to an alloy composite material laser sintering device which comprises a supporting frame, a workbench is arranged at the bottom end of the supporting frame, a material scattering assembly is arranged above the workbench, a sintering assembly is arranged above the material scattering assembly, and the material scattering assembly comprises a material scattering box. A plurality of spraying heads are installed at the bottom end of the material scattering box at equal intervals, a stirring assembly is arranged on one side of the material scattering box, a discharging port is formed in one side of the bottom end of the stirring assembly, and an output pipe is communicated with one side of the discharging port. According to the alloy composite material spreading device, the alloy composite material can be uniformly spread on the working table, the alloy composite material can be sufficiently stirred before being spread due to the arrangement of the stirring assembly, particles in the material can be better dispersed, and therefore the possibility of caking is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, in particular to a laser sintering device for alloy composite materials. Background Art

[0002] In the laser sintering process, laser energy is used to melt the powder, and the laser energy is "printed" onto the powder layer through a scanning device, thereby producing a solidified layer, which then becomes part of the finished object. This process is carried out in layers, and each layer is processed according to the predetermined slice data, and finally accumulates into the desired object.

[0003] After searching, the Chinese patent document application number is: 201821910980.9, a rubber powder laser sintering 3D printing molding device, including a body, the bottom of the body is connected to a printing platform through a lifting structure, a sintering device is arranged on the top of the body, and support slide bars fixed on both sides of the body are arranged directly below the sintering device, and a powder spreading device is arranged on the support slide bars. The sintering device includes a movable guide rail arranged on the top of the body, and a first electric slider matching the movable guide rail is installed on the movable guide rail. The bottom end of the first electric slider is connected to a scanning mirror through a rotating connecting piece, and a laser generator fixed on the top of the body is arranged on the side of the scanning mirror, and a refraction mirror assembly fixed on the top of the body is arranged between the laser generator and the scanning mirror. The device has high sintering accuracy and more complete sintering, and will not affect the surrounding raw materials. At the same time, it can make the rubber powder spread more evenly and with higher spreading accuracy, avoiding deviation in the position of the rubber powder.

[0004] The above-mentioned rubber powder laser sintering 3D printing molding device has higher sintering accuracy and more complete sintering, and will not affect the surrounding raw materials. At the same time, it can make the rubber powder spread more evenly and with higher spreading accuracy, avoiding deviation in the position of the rubber powder.

[0005] However, the above-mentioned rubber powder laser sintering 3D printing molding device still has the following defects:

[0006] When the device adds powder directly from the powder adding port during powder laying, lumps may fall directly into the powder spreading device, resulting in failure to lay the powder evenly and smoothly on the working plane. Therefore, we need a laser sintering device for alloy composite materials to solve the above problem. Utility Model Content

[0007] The purpose of the utility model is to provide a laser sintering device for alloy composite materials, which mainly ensures that the alloy composite materials can be evenly spread on the workbench through a material spreading box and a plurality of nozzles at the bottom. The setting of the stirring assembly ensures that the alloy composite materials can be fully stirred before spreading, and the particles in the material can be better dispersed, thereby further reducing the possibility of agglomeration. The output pipe directly transports the stirred alloy composite materials to the top of the second pouring port of the material spreading box, thereby ensuring the freshness and fluidity of the material. The workbench driven by the cylinder can adjust the height as needed, and can process alloy composite materials of different thicknesses.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser sintering device for alloy composite materials, comprising a support frame, a bottom plate is fixedly installed at the bottom end of the support frame, a cylinder is arranged in the middle of the surface of the bottom plate, a workbench is installed at the piston rod end of the cylinder, a spreading assembly is arranged above the workbench, a sintering assembly is arranged above the spreading assembly, the spreading assembly comprises a spreading box, a second open pouring port is provided at the top of the spreading box, a plurality of nozzles are equidistantly installed at the bottom end of the spreading box, both ends of the spreading box extend out and are provided with moving assemblies, a stirring assembly is provided on one side of the spreading box, the stirring assembly is fixedly installed on one side outer wall of the support frame, a discharge port is provided on one side of the bottom end of the stirring assembly, one side of the discharge port is connected to an output pipe, one end of the output pipe passes through the side wall of the support frame and extends to the top of the second pouring port.

[0009] Preferably, moving blocks are fixedly installed on both sides of the workbench, first moving grooves for the moving blocks to move are opened on the inner walls of both sides of the support frame, and a placement groove is opened on the surface of the workbench.

[0010] Preferably, a through slot is provided inside the workbench, a stop bar is installed on one side of the through slot, and a heat sink is installed inside the through slot.

[0011] Preferably, the sintering assembly includes a dustproof box, a laser, a galvanometer and a zoom lens, a through opening being opened at the bottom end of the dustproof box, one end of the laser being fixedly mounted on an inner wall of one side of the dustproof box, the galvanometer being fixedly mounted on a side away from the laser, and the zoom lens being fixedly mounted on the bottom end of the dustproof box.

[0012] Preferably, an electric push rod is fixedly mounted on an inner wall of one side of the support frame, the piston rod end of the electric push rod is fixedly connected to the outer wall of the dustproof box, a push groove is opened at the inner top end of the support frame, and both ends of the dustproof box extend out and are slidably connected to the push groove.

[0013] Preferably, the moving assembly includes a driving motor, a threaded rod, a first fixed frame and a second fixed frame, the first fixed frame is provided with a second moving groove inside, the second fixed frame is provided with a threaded groove inside, the base of the driving motor is fixedly mounted on the outer wall of the support frame, the output shaft of the driving motor is fixedly connected to one end of the threaded rod, the other end of the threaded rod is fixedly mounted on one side inner wall of the threaded groove through a bearing, one end of the material spreading box is threadedly connected to the threaded rod, and the other end of the material spreading box is slidably connected in the second moving groove.

[0014] Preferably, the stirring assembly includes a stirring box, a stirring motor, a stirring shaft and a plurality of stirring rods. An L-shaped support plate is fixedly mounted on the outer wall of one side of the support frame. The stirring box is fixedly mounted on the surface of the L-shaped support plate. The output shaft of the stirring motor is fixedly connected to one end of the stirring shaft. The other end of the stirring shaft passes through the top of the stirring box and is fixedly mounted on the bottom end of the inner cavity of the stirring box through a bearing. The plurality of stirring rods are equidistantly mounted on the outer walls around the stirring shaft. A first pouring port is opened on one side of the top of the stirring box.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model ensures that the alloy composite material can be evenly spread on the workbench mainly through the spreading box and multiple nozzles at the bottom. The setting of the stirring assembly ensures that the alloy composite material can be fully stirred before spreading, and the particles in the material can be better dispersed, thereby further reducing the possibility of agglomeration. The output pipe directly transports the stirred alloy composite material to the top of the second pouring port of the spreading box, ensuring the freshness and fluidity of the material. The workbench driven by the cylinder can adjust the height as needed, and can handle alloy composite materials of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the sintered component of the utility model;

[0019] Figure 3 It is a cross-sectional view of the stirring assembly of the utility model;

[0020] Figure 4 It is a three-dimensional schematic diagram of the internal structure of the utility model.

[0021] In the figure: 1. support frame; 2. bottom plate; 3. cylinder; 4. workbench; 401. gear bar; 402. heat sink; 403. placement slot; 404. first moving slot; 405. moving block; 5. first fixed frame; 501. second moving slot; 502. drive motor; 503. second fixed frame; 504. threaded groove; 505. threaded rod; 506. material spreading box; 507. second pouring port; 508. nozzle; 6. stirring box; 601. L-shaped support plate; 602. stirring motor; 603. first pouring port; 604. stirring shaft; 605. stirring rod; 606. discharge port; 607. output pipe; 7. dustproof box; 701. electric push rod; 702. laser; 703. galvanometer; 704. zoom lens; 705. push slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a laser sintering device for alloy composite materials, comprising a support frame 1, a bottom plate 2 is fixedly installed at the bottom end of the support frame 1, a cylinder 3 is arranged in the middle of the surface of the bottom plate 2, a workbench 4 is installed at the piston rod end of the cylinder 3, a material spreading component is arranged above the workbench 4, a sintering component is arranged above the material spreading component, the material spreading component comprises a material spreading box 506, a second open material discharge port 507 is opened at the top of the material spreading box 506, a plurality of nozzles 508 are equidistantly installed at the bottom end of the material spreading box 506, both ends of the material spreading box 506 extend out and are provided with a moving component, a stirring component is arranged on one side of the material spreading box 506, the stirring component is fixedly installed on one side outer wall of the support frame 1, a discharge port 606 is opened on one side of the bottom end of the stirring component, one side of the discharge port 606 is connected with an output pipe 607, one end of the output pipe 607 passes through the side wall of the support frame 1 and extends to the top of the second discharge port 507;

[0024] When in use, the alloy composite material can be evenly spread on the workbench 4 through the spreading box 506 and the multiple nozzles 508 at the bottom. The setting of the stirring assembly ensures that the alloy composite material can be fully stirred before spreading, and the particles in the material can be better dispersed, thereby further reducing the possibility of agglomeration. The output pipe 607 transports the stirred alloy composite material directly to the top of the second pouring port 507 of the spreading box 506, ensuring the freshness and fluidity of the material. The workbench 4 driven by the cylinder 3 can adjust the height as needed, and can process alloy composite materials of different thicknesses.

[0025] Moving blocks 405 are fixedly installed on both sides of the workbench 4, and first moving grooves 404 for the moving blocks 405 to move are opened on the inner walls of both sides of the support frame 1. A placement groove 403 is opened on the surface of the workbench 4. Through the sliding of the moving blocks 405 in the first moving grooves 404, the workbench 4 can be stably moved in the vertical direction (the direction driven by the cylinder 3) and the horizontal direction.

[0026] A through groove is provided inside the workbench 4, a stop bar 401 is installed on one side of the through groove, and a heat sink 402 is installed inside the through groove. The installation of the heat sink 402 can significantly improve the heat dissipation performance of the workbench 4. During the laser sintering process, the workbench 4 will absorb a large amount of heat. If there is no good heat dissipation system, the workbench 4 may overheat, thereby affecting the sintering quality or even damaging the equipment.

[0027] The sintering assembly includes a dustproof box 7, a laser 702, a galvanometer 703 and a zoom lens 704. A through opening is opened at the bottom end of the dustproof box 7. One end of the laser 702 is fixedly mounted on an inner wall of one side of the dustproof box 7. The galvanometer 703 is fixedly mounted on a side away from the laser 702. The zoom lens 704 is fixedly mounted on the bottom end of the dustproof box 7. The laser beam generated by the laser 702 can be precisely controlled by the galvanometer 703 and the zoom lens 704 to achieve deflection and focusing of the laser beam, thereby achieving precise sintering of the alloy composite material. The galvanometer 703 can reflect the laser beam from one position to another to achieve precise processing and cutting of the material. The zoom lens 704 can adjust the focal length of the laser beam to ensure the best focusing effect of the laser beam on the surface of the material.

[0028] An electric push rod 701 is fixedly installed on the inner wall of one side of the support frame 1, and the piston rod end of the electric push rod 701 is fixedly connected to the outer wall of the dustproof box 7. A push groove 705 is opened at the inner top end of the support frame 1, and the two ends of the dustproof box 7 extend out and are slidably connected to the push groove 705. The sliding connection design between the dustproof box 7 and the push groove 705 ensures the stability and smoothness of the dustproof box 7 during the movement, and through the electric push rod 701, the operator can remotely control the movement of the dustproof box 7 without manual adjustment, which greatly improves the convenience and efficiency of operation.

[0029] The moving assembly includes a driving motor 502, a threaded rod 505, a first fixed frame 5 and a second fixed frame 503. The first fixed frame 5 is provided with a second moving groove 501, and the second fixed frame 503 is provided with a threaded groove 504. The base of the driving motor 502 is fixedly installed on the outer wall of the support frame 1, and the output shaft of the driving motor 502 is fixedly connected to one end of the threaded rod 505, and the other end of the threaded rod 505 is fixedly installed on one side inner wall of the threaded groove 504 through a bearing. One end of the material spreading box 506 is threadedly connected to the threaded rod 505, and the other end of the material spreading box 506 is slidably connected in the second moving groove 501. The threaded rod 505 is driven to rotate by the driving motor 502, and the threaded rod 505 is threadedly connected to one end of the material spreading box 506, thereby realizing the precise movement of the material spreading box 506. Since the material spreading box 506 can be precisely moved between the first fixed frame 5 and the second fixed frame 503, it can adapt to the requirements of spreading materials of different sizes, thereby improving the flexibility and adaptability of the equipment.

[0030] The stirring assembly includes a stirring box 6, a stirring motor 602, a stirring shaft 604 and a plurality of stirring rods 605. An L-shaped support plate 601 is fixedly installed on the outer wall of one side of the support frame 1. The stirring box 6 is fixedly installed on the surface of the L-shaped support plate 601. The output shaft of the stirring motor 602 is fixedly connected to one end of the stirring shaft 604. The other end of the stirring shaft 604 passes through the top of the stirring box 6 and is fixedly installed on the bottom end of the inner cavity of the stirring box 6 through a bearing. A plurality of stirring rods 605 are equidistantly installed on the outer wall around the stirring shaft 604. A first pouring port 603 is opened on one side of the top of the stirring box 6. The stirring motor 602 drives the stirring shaft 604 and the stirring rod 605 to rotate, thereby ensuring that the alloy composite material is evenly and fully stirred in the stirring box 6, which helps to reduce agglomeration and ensure the uniformity of the sintered material.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser sintering device for alloy composite materials, comprising a support frame (1), characterized in that: A bottom plate (2) is fixedly mounted on the bottom end of the support frame (1), a cylinder (3) is arranged in the middle of the surface of the bottom plate (2), a workbench (4) is installed on the piston rod end of the cylinder (3), a material spreading assembly is arranged above the workbench (4), a sintering assembly is arranged above the material spreading assembly, the material spreading assembly comprises a material spreading box (506), a second material pouring port (507) which is open is provided at the top end of the material spreading box (506), and a plurality of material spreading ports (507) are equidistantly mounted at the bottom end of the material spreading box (506). A spray head (508), both ends of the material spreading box (506) extend outward and are provided with moving components, one side of the material spreading box (506) is provided with a stirring component, and the stirring component is fixedly mounted on an outer wall of one side of the support frame (1), and a discharge port (606) is opened on one side of the bottom end of the stirring component, and one side of the discharge port (606) is connected to an output pipe (607), and one end of the output pipe (607) passes through the side wall of the support frame (1) and extends to the top of the second pouring port (507).

2. The laser sintering device of the alloy composite material according to claim 1, characterized in that: Moving blocks (405) are fixedly mounted on both sides of the workbench (4), first moving grooves (404) for the moving blocks (405) to move are provided on the inner walls on both sides of the support frame (1), and a placement groove (403) is provided on the surface of the workbench (4).

3. The laser sintering device of the alloy composite material according to claim 2, characterized in that: A through slot is provided inside the workbench (4), a stop bar (401) is installed on one side of the through slot, and a heat sink (402) is installed inside the through slot.

4. The laser sintering device of the alloy composite material according to claim 3, characterized in that: The sintering assembly comprises a dustproof box (7), a laser (702), a galvanometer (703) and a zoom lens (704); a through opening is provided at the bottom end of the dustproof box (7); one end of the laser (702) is fixedly mounted on an inner wall of one side of the dustproof box (7); the galvanometer (703) is fixedly mounted on a side away from the laser (702); and the zoom lens (704) is fixedly mounted on the bottom end of the dustproof box (7).

5. The laser sintering device of the alloy composite material according to claim 4, characterized in that: An electric push rod (701) is fixedly mounted on an inner wall of one side of the support frame (1), a piston rod end of the electric push rod (701) is fixedly connected to an outer wall of the dustproof box (7), a push groove (705) is provided at the inner top end of the support frame (1), and two ends of the dustproof box (7) extend out and are slidably connected to the push groove (705).

6. The laser sintering device of the alloy composite material according to claim 5, characterized in that: The moving assembly comprises a driving motor (502), a threaded rod (505), a first fixed frame (5) and a second fixed frame (503); a second moving groove (501) is provided inside the first fixed frame (5), a threaded groove (504) is provided inside the second fixed frame (503); a base of the driving motor (502) is fixedly mounted on the outer wall of the support frame (1); an output shaft of the driving motor (502) is fixedly connected to one end of the threaded rod (505); the other end of the threaded rod (505) is fixedly mounted on one side inner wall of the threaded groove (504) through a bearing; one end of the material spreading box (506) is threadedly connected to the threaded rod (505); the other end of the material spreading box (506) is slidably connected in the second moving groove (501).

7. The laser sintering device of the alloy composite material according to claim 6, characterized in that: The stirring assembly comprises a stirring box (6), a stirring motor (602), a stirring shaft (604) and a plurality of stirring rods (605); an L-shaped supporting plate (601) is fixedly mounted on the outer wall of one side of the supporting frame (1); the stirring box (6) is fixedly mounted on the surface of the L-shaped supporting plate (601); the output shaft of the stirring motor (602) is fixedly connected to one end of the stirring shaft (604); the other end of the stirring shaft (604) passes through the top end of the stirring box (6) and is fixedly mounted on the bottom end of the inner cavity of the stirring box (6) via a bearing; the plurality of stirring rods (605) are equidistantly mounted on the outer wall of the stirring shaft (604); and a first pouring port (603) is provided on one side of the top end of the stirring box (6).

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