Automatic metal powder stirring device for 3D printing

Abstract

The utility model relates to the technical field of metal powder for 3D printing, and discloses an automatic metal powder stirring device for 3D printing, which comprises a stirring tank, a fixing ring is rotatably connected to the bottom of the outer diameter of the stirring tank, side plates are fixedly connected to the left end and the right end of the outer diameter of the fixing ring, and a first connecting plate is fixedly connected between the two side plates. A top plate is fixedly connected to the top of the stirring tank, sliding rails are fixedly connected to the front end and the rear end of the inner diameter of the stirring tank, baffles penetrate through and are slidably connected to the opposite sides of the inner walls of the two sliding rails, and evenly-distributed springs are fixedly connected to the opposite sides of the two baffles. According to the metal powder discharging device, through the sliding rail, the spring, the baffle, the air cylinder and the second fixing plate, after metal powder in the stirring tank is discharged, the air cylinder can be started to work, and then the second fixing plate can be pushed, so that the baffle can move in the sliding rail and protrude out of the stirring tank.

Description

Technical Field

[0001] The utility model relates to the technical field of metal powder for 3D printing, in particular to an automatic stirring device for metal powder for 3D printing. Background Art

[0002] In the process of 3D printing metal powder processing, automatic stirring devices are widely used to stir metal powder. Metal powder is a metal material prepared into extremely small granular powder by mechanical grinding or chemical methods. Metal powder has a high specific surface area and good plasticity. It is often used to prepare metal ceramics, metal slurry, metal coating and other materials. Automatic stirring devices are also used in the process of 3D printing metal powder processing.

[0003] After searching, the existing Chinese patent announcement number is: CN219881314U, which provides an automatic stirring device for metal powder for 3D printing. This patent can realize automatic stirring of metal powder for 3D printing by providing a metal powder stirring mechanism for 3D printing; by providing a metal powder cooling mechanism for 3D printing, the inside of the device cylinder can be fully and automatically cooled, avoiding the heat generated when stirring the metal powder for 3D printing from affecting the metal powder for 3D printing.

[0004] Although the above patent can automatically cool down the cylinder, the above-mentioned automatic metal powder stirring device for 3D printing still has the following problems: during the metal powder stirring process, it is usually necessary to pour the required metal powder into the stirring tank. When the metal powder is stirred and sent out, some metal powder will remain in the tank, resulting in a certain amount of metal powder waste in use.

[0005] In view of the above problems, an automatic stirring device for metal powder for 3D printing is proposed. Utility Model Content

[0006] The utility model aims to provide an automatic metal powder stirring device for 3D printing, which solves the problem in the background art that some metal powder will remain in the tank, causing a certain amount of metal powder waste in use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic stirring device for metal powder for 3D printing, comprising a stirring tank, a fixing ring is rotatably connected to the bottom of the outer diameter of the stirring tank, side plates are fixedly connected to the left and right ends of the outer diameter of the fixing ring, a first connecting plate is fixedly connected between the two side plates, a top plate is fixedly connected to the top of the stirring tank, slide rails are fixedly connected to the front and rear ends of the inner diameter of the stirring tank, baffles are penetrated and slidably connected to the opposite sides of the inner walls of the two slide rails, and springs uniformly distributed are fixedly connected to the opposite sides of the two baffles, a second fixing plate is fixedly connected to the top of the two baffles, and the second fixing plate penetrates and extends to one side of the second connecting plate, two first fixing plates are fixedly connected to the top of the top plate, and the output ends of the two first fixing plates are fixedly connected to cylinders, a second motor is fixedly connected to the center position of the bottom of the first connecting plate, the output end of the second motor penetrates the top plate and is fixedly connected to a transmission rod, and a mixing net is fixedly connected to the front and rear ends of the surface of the transmission rod, a rotating assembly is provided on the outer diameter of the stirring tank, and a vibration motor is provided at the bottom of the outer diameter of the stirring tank.

[0008] By adopting the above technical solution, the second motor is started to drive the mixing network to rotate forward in the mixing tank, and then the first motor is started to work to drive the second gear to rotate, so that the first gear can rotate, and then the mixing tank is driven to rotate in the fixed ring and reverse.

[0009] As a further description of the above technical solution: the rotating assembly includes a first gear, the first gear is fixedly connected to the stirring tank, the top rear end of the fixed ring is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a second gear, and the second gear is meshingly connected to the first gear.

[0010] By adopting the above technical solution, the rotating component can drive the stirring tank to rotate.

[0011] As a further description of the above technical solution: legs are fixedly connected to the four corners of the bottom of the fixing ring.

[0012] By adopting the above technical solution, the legs support the device.

[0013] As a further description of the above technical solution: a feed pipe is fixedly connected to the right end of the top of the top plate, and the feed pipe passes through and extends to one side of the top plate.

[0014] By adopting the above technical solution, metal powder is put into the feed pipe.

[0015] As a further description of the above technical solution: the two cylinder output ends are fixedly connected with a second fixed plate, and the second connecting plate is slidably connected to the top plate.

[0016] By adopting the above technical solution, the second connecting plate is driven to move by the cylinder.

[0017] As a further description of the above technical solution: a discharge pipe passes through and is fixedly connected to the bottom of the mixing tank, and a gate valve is arranged at the bottom of the discharge pipe.

[0018] By adopting the above technical solution, the material is discharged from the discharge pipe and then controlled by the gate valve.

[0019] As a further description of the above technical solution: the rear end of the outer diameter of the fixing ring is fixedly connected with an L-shaped plate, and the bottom of the L-shaped plate is rotatably connected with a second gear.

[0020] By adopting the above technical solution, the L-shaped plate limits and fixes the second gear.

[0021] As a further description of the above technical solution: the spring is fixedly connected to the slide rail.

[0022] By adopting the above technical solution, the spring is fixed.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] 1. The utility model provides an automatic stirring device for metal powder for 3D printing, which uses a slide rail, a spring, a baffle, a cylinder, and a second fixed plate. When the metal powder in the stirring tank is unloaded, the cylinder can be started, and then the second fixed plate can be pushed, so that the baffle moves from the slide rail and protrudes inside the stirring tank. Then the second motor is started to drive the mixing net to rotate 90 degrees, so that the mixing net can hit the baffle. At the same time, the vibration motor is started to shake the metal powder retained on the mixing net, thereby reducing the waste of metal powder.

[0025] 2. The utility model provides an automatic stirring device for metal powder for 3D printing, which uses a second motor, a mixing net, a first gear, a first motor, and a second gear. When stirring the metal powder inside a stirring tank, the second motor is first started to drive the mixing net to rotate forward, and the mixing net drives the powder to stir. At the same time, the first motor is started to drive the second gear to rotate, which can drive the first gear to rotate, and then the stirring tank is reversed to improve the uniformity of the metal powder stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view of the overall structure of the utility model;

[0027] Figure 2 It is a three-dimensional diagram of the overall structure of the utility model;

[0028] Figure 3It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 4 This is a schematic diagram of the hybrid network structure of the utility model;

[0030] Figure 5 It is a schematic diagram of the baffle retraction structure of the utility model.

[0031] In the figure: 1, mixing tank; 2, fixing ring; 3, supporting leg; 4, vibration motor; 5, discharge pipe; 6, plug valve; 7, first gear; 8, first fixing plate; 9, second gear; 10, first motor; 11, L-shaped plate; 12, side plate; 13, first connecting plate; 14, second motor; 15, feeding pipe; 16, top plate; 17, slide rail; 18, baffle; 19, spring; 20, transmission rod; 21, mixing net; 22, second connecting plate; 23, second fixing plate; 24, cylinder. DETAILED DESCRIPTION

[0032] 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.

[0033] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0034] Combination Figure 1 The utility model discloses an automatic stirring device for metal powder for 3D printing, comprising a stirring tank 1, a fixing ring 2 is rotatably connected to the bottom of the outer diameter of the stirring tank 1, side plates 12 are fixedly connected to the left and right ends of the outer diameter of the fixing ring 2, a first connecting plate 13 is fixedly connected between the two side plates 12, legs 3 are fixedly connected to the four corners of the bottom of the fixing ring 2, a feed pipe 15 is fixedly connected to the right end of the top of the top plate 16, and the feed pipe 15 passes through and extends to one side of the top plate 16, a discharge pipe 5 passes through and is fixedly connected to the bottom of the stirring tank 1, a plug valve 6 is provided at the bottom of the discharge pipe 5, and a spring 19 is fixedly connected to a slide rail 17.

[0035] The stirring device is supported by the legs 3, and the second motor 14 is fixed by the side plate 12 and the first connecting plate 13, so that the mixing net 21 inside the stirring tank 1 rotates forward and the stirring tank 1 rotates reversely to improve the stirring effect.

[0036] Combination Figure 3 and Figure 5, a top plate 16 is fixedly connected to the top of the stirring tank 1, and slide rails 17 are fixedly connected to the front and rear ends of the inner diameter of the stirring tank 1. Baffles 18 are penetrated and slidably connected to the opposite sides of the inner walls of the two slide rails 17, and evenly distributed springs 19 are fixedly connected to the opposite sides of the two baffles 18. The tops of the two baffles 18 are fixedly connected to the second fixed plates 23, and the second fixed plates 23 penetrate and extend to one side of the second connecting plate 22. Two first fixed plates 8 are fixedly connected to the top of the top plate 16. The output ends of the two first fixed plates 8 are fixedly connected to the cylinders 24. The second motor 14 is fixedly connected at the center position of the bottom of the first connecting plate 13. The output end of the second motor 14 penetrates the top plate 16 and is fixedly connected to the transmission rod 20. The front and rear ends of the surface of the transmission rod 20 are fixedly connected to the mixing net 21. The outer diameter of the stirring tank 1 is provided with a rotating assembly, and the bottom of the outer diameter of the stirring tank 1 is provided with a vibration motor 4. The output ends of the two cylinders 24 are fixedly connected to the second fixed plates 23, and the second connecting plate 22 is slidably connected to the top plate 16.

[0037] When the mixing tank 1 is stirring, the baffle 18 is inside the slide rail 17 and is pushed by the cylinder 24 without affecting the rotation of the baffle 18. When the mixing net 21 needs to be cleaned, the cylinder 24 is used to control the baffle 18 to move and protrude inside the mixing tank 1.

[0038] Combination Figure 2 and Figure 4 The rotating assembly includes a first gear 7, which is fixedly connected to the stirring tank 1. The top rear end of the fixed ring 2 is fixedly connected to a first motor 10, the output end of the first motor 10 is fixedly connected to a second gear 9, the second gear 9 is meshingly connected to the first gear 7, the outer diameter rear end of the fixed ring 2 is fixedly connected to an L-shaped plate 11, and the bottom of the L-shaped plate 11 is rotatably connected to the second gear 9.

[0039] When the second gear 9 rotates, an L-shaped plate 11 is connected to the top to limit the second gear 9, and then meshes with the first gear 7 to drive the mixing tank 1 to rotate. Then, the mixing net 21 can be used to stir the metal powder, which is better than the stirring rod.

[0040] Working principle: When stirring the metal powder for 3D printing, first put the metal powder to be stirred into the stirring tank 1 from the feeding pipe 15, then start the second motor 14 to drive the mixing net 21 to rotate forward in the stirring tank 1, at this time, the baffle 18 is pushed into the slide rail 17 by the cylinder 24, which will not affect the rotation of the mixing net 21, and then start the first motor 10 to work, drive the second gear 9 to rotate, so that the first gear 7 can rotate, and then drive the stirring tank 1 to rotate in the fixed ring 2, and reverse, to improve the metal powder. The metal powder is stirred evenly, and then the gate valve 6 is opened to be discharged from the discharge pipe 5, and then the cylinder 24 is started to work, which can drive the cylinder 24 to perform recovery work, and then the baffle 18 will slide in the slide rail 17, and the baffle 18 will protrude in the mixing tank 1, and the second motor 14 is started to drive the mixing net 21 to rotate 90 degrees, and then the mixing net 21 collides with the baffle 18, and at the same time, the vibration motor 4 is started to work, so that the metal powder remaining on the mixing net 21 can be vibrated off to reduce the waste of metal powder.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] 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. An automatic stirring device for metal powder for 3D printing, comprising a stirring tank (1), characterized in that: The bottom of the outer diameter of the stirring tank (1) is rotatably connected to a fixing ring (2), the left and right ends of the outer diameter of the fixing ring (2) are fixedly connected to side plates (12), a first connecting plate (13) is fixedly connected between the two side plates (12), the top of the stirring tank (1) is fixedly connected to a top plate (16), the front and rear ends of the inner diameter of the stirring tank (1) are fixedly connected to slide rails (17), the inner walls of the two slide rails (17) are penetrated and slidably connected to baffles (18) on opposite sides, the opposite sides of the two baffles (18) are fixedly connected to evenly distributed springs (19), the tops of the two baffles (18) are fixedly connected to second fixing plates (23), and The second fixed plate (23) penetrates and extends to one side of the second connecting plate (22); two first fixed plates (8) are fixedly connected to the top of the top plate (16); the output ends of the two first fixed plates (8) are fixedly connected to a cylinder (24); a second motor (14) is fixedly connected to the center position of the bottom of the first connecting plate (13); the output end of the second motor (14) penetrates the top plate (16) and is fixedly connected to a transmission rod (20); the front and rear ends of the surface of the transmission rod (20) are fixedly connected to a mixing net (21); a rotating assembly is provided on the outer diameter of the stirring tank (1); and a vibration motor (4) is provided at the bottom of the outer diameter of the stirring tank (1).

2. The automatic stirring device for metal powder for 3D printing according to claim 1, characterized in that: The rotating assembly comprises a first gear (7), the first gear (7) is fixedly connected to the stirring tank (1), a first motor (10) is fixedly connected to the top rear end of the fixing ring (2), a second gear (9) is fixedly connected to the output end of the first motor (10), and the second gear (9) is meshingly connected to the first gear (7).

3. The automatic stirring device for metal powder for 3D printing according to claim 1, characterized in that: Support legs (3) are fixedly connected at the four corners of the bottom of the fixing ring (2).

4. The automatic stirring device for metal powder for 3D printing according to claim 1, characterized in that: A feed pipe (15) is fixedly connected to the right end of the top of the top plate (16), and the feed pipe (15) passes through and extends to one side of the top plate (16).

5. The automatic stirring device for metal powder for 3D printing according to claim 1, characterized in that: The output ends of the two cylinders (24) are both fixedly connected to a second fixed plate (23), and the second connecting plate (22) is slidably connected to the top plate (16).

6. The automatic stirring device for metal powder for 3D printing according to claim 1, characterized in that: A discharge pipe (5) passes through and is fixedly connected to the bottom of the stirring tank (1), and a gate valve (6) is provided at the bottom of the discharge pipe (5).

7. The automatic stirring device for metal powder for 3D printing according to claim 1, characterized in that: The rear end of the outer diameter of the fixing ring (2) is fixedly connected to an L-shaped plate (11), and the bottom of the L-shaped plate (11) is rotatably connected to a second gear (9).

8. The automatic stirring device for metal powder for 3D printing according to claim 1, characterized in that: The spring (19) is fixedly connected to the slide rail (17).

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